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Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 13661. Отображено 200.
10-09-2016 дата публикации

СПОСОБ И УСТРОЙСТВО ДЛЯ ПЕРЕДАЧИ И ПРИЕМА ИНФОРМАЦИИ ОБРАТНОЙ СВЯЗИ В СИСТЕМЕ МОБИЛЬНОЙ СВЯЗИ

Номер: RU2597241C2

Изобретение относится к системе сотовой мобильной связи. Изобретение раскрывает, в частности, способ для передачи информации обратной связи пользовательским оборудованием (UE). Способ включает в себя прием информации, по меньшей мере, об одном опорном сигнале информации о состоянии канала (CSI-RS); выполнение анализа канала на основе информации, по меньшей мере, об одном CSI-RS; прием информации, по меньшей мере, об одной обратной связи; и передачу, по меньшей мере, одного сигнала обратной связи, включая результат анализа канала с использованием информации, по меньшей мере, об одной обратной связи, причем информация, по меньшей мере, об одной обратной связи включает в себя информацию о времени передачи и режиме обратной связи, по меньшей мере, для одной обратной связи. 4 н. и 10 з.п. ф-лы, 4 табл., 18 ил.

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20-01-2016 дата публикации

ОПРЕДЕЛЕНИЕ ПРОСТРАНСТВА ПОИСКА

Номер: RU2573393C2
Принадлежит: ИНТЕЛ КОРПОРЕЙШН (US)

Изобретение относится к области связи и, в частности, к определению пространства поиска в сетях беспроводной связи. Изобретение позволяет, ограничиваясь тремя символами OFDM при одновременной поддержке операции MU-MIMO, ограничить частоту и выигрыши от планирования, которые могут быть доступны благодаря операции MU-MIMO. Варианты осуществления настоящего раскрытия описывают устройства, системы, способы и изделия промышленного производства для идентификации кандидатов пространства поиска, которые можно использовать при передаче управляющей информации нисходящей линии связи. 5 н. и 20 з.п. ф-лы, 10 ил.

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09-04-2024 дата публикации

БАЗОВАЯ СТАНЦИЯ, СПОСОБ ПЕРЕДАЧИ И СПОСОБ ПРИЕМА

Номер: RU2816991C2

Изобретение относится к области связи. Технический результат состоит в обеспечении более эффективного управления координацией Multi-AP. Для этого базовая станция содержит схему управления, которая генерирует совместно используемую информацию, которая является общей для множества пользователей, и включает в себя информацию, относящуюся к неназначенным ресурсам, а также индивидуальную информацию пользователя, которая является специфической для каждого из множества пользователей, и схему передачи, которая передает сигнал управления, содержащий совместно используемую информацию и индивидуальную информацию пользователя. 2 н. и 5 з.п. ф-лы, 22 ил.

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20-12-2015 дата публикации

УСТРОЙСТВО И СПОСОБ НАЗНАЧЕНИЯ АНТЕНН ДЛЯ СИСТЕМЫ СОТОВОЙ МОБИЛЬНОЙ СВЯЗИ

Номер: RU2571266C2

Изобретение относится к системам мобильной связи и предназначено для увеличения производительности системы посредством использования изменяющейся по частоте характеристики канала. Изобретение раскрывает в частности способ для эффективного выбора и назначения антенн, который включает в себя передачу на пользовательское оборудование (UE) информации, указывающей конфигурацию множества Опорных сигналов информации о статусе канала (CSI-RS) посредством относящейся к UE сигнализации во время попытки первоначального доступа с помощью UE; прием от UE результатов измерения CSI-RS, указывающих сконфигурированные CSI-RS, передачу CSI-RS, соответствующих набору доступных распределенных портов (D-порты) на основе информации об уровне принятого сигнала, включенной в результаты измерения CSI-RS, и определение CSI-RS набора выбранных D-портов для использования в связи на основе информации обратной связи, принятой от UE. 5 н. и 15 з. п. ф-лы, 8 ил, 1 табл.

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26-04-2024 дата публикации

СИСТЕМЫ И СПОСОБЫ КАРТИРОВАНИЯ ВИРТУАЛЬНЫХ РАДИОТОЧЕК В ФИЗИЧЕСКИЕ ОБЪЕМЫ КОГЕРЕНТНОСТИ В РАСПРЕДЕЛЕННЫХ АНТЕННЫХ СИСТЕМАХ

Номер: RU2818250C2
Принадлежит: РИАРДЕН, ЛЛК (US)

Изобретение относится к способам картирования виртуальных радиоточек (VRI) в физические объемы когерентности в многоантенной системе (MAS) с многопользовательской (MU) передачей данных (MU-MAS). Технический результат изобретения заключается в осуществлении одновременной передачи неинтерферирующих потоков данных в одной и той же полосе частот между системой MU-MAS и множеством пользователей в пределах их объема когерентности. При перемещении пользователей их точки VRI посредством телепортации следуют за соответствующими объемами когерентности в смежные системы MU-MAS, устраняя таким образом необходимость эстафетных передач данных, присущую традиционным сотовым системам, и ненужную избыточную передачу управляющих данных. 3 н. и 47 з.п. ф-лы, 6 ил.

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19-12-2018 дата публикации

СИСТЕМЫ И СПОСОБЫ ИСПОЛЬЗОВАНИЯ МЕЖСОТОВОГО ПРИРОСТА МУЛЬТИПЛЕКСИРОВАНИЯ В БЕСПРОВОДНЫХ СОТОВЫХ СИСТЕМАХ ПОСРЕДСТВОМ ТЕХНОЛОГИИ РАСПРЕДЕЛЕННОГО ВХОДА-РАСПРЕДЕЛЕННОГО ВЫХОДА

Номер: RU2675383C2
Принадлежит: РИАРДЕН, ЛЛК (US)

Изобретение относится к области беспроводной сотовой связи, в частности к системе с множеством антенн (MAS) с многопользовательскими (MU) передачами («МУ-MAS»), используя межсотовый прирост мультиплексирования посредством пространственной обработки для повышения пропускной способности. В течение трех последних десятилетий во всем мире на рынке беспроводной сотовой связи наблюдают рост количества абонентов, сопровождаемый ростом спроса на более качественные услуги и переходом от голосовых данных к просмотру веб-страниц и потокового видео высокой четкости (HD) в реальном времени. Этот растущий спрос на услуги, требующие более высокой скорости передачи данных, более низкой задержки и повышенной надежности, стимулирует стремительное развитие беспроводных технологий за счет различных стандартов. 4 н. и 130 з.п. ф-лы, 19 ил.

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10-01-2014 дата публикации

УСТРОЙСТВО И СПОСОБ ОДНОПОЛЬЗОВАТЕЛЬСКОЙ СВЯЗИ С МНОЖЕСТВОМ ВХОДОВ И МНОЖЕСТВОМ ВЫХОДОВ С ПРИМЕНЕНИЕМ ЦИКЛИЧЕСКИХ СДВИГОВ

Номер: RU2504094C2

Изобретение относится к технике связи и может быть использовано в беспроводных сетях, совместно использующих пространство циклического сдвига сигналов. Технический результат - уменьшение затрат на передачу значений циклического сдвига. Множество значений циклических сдвигов вычисляют в пользовательском оборудовании, применяющем передачу с множеством входов и множеством выходов и содержащем два или более антенных порта и процессор, сконфигурированный для совместного использования пространства циклического сдвига опорных сигналов пользовательского оборудования, применяющего однопользовательский режим передачи с множеством входов и множеством выходов, путем применения значения приращения циклического сдвига между опорными сигналами различных антенных портов или пространственных уровней передачи пользовательского оборудования, при этом процессор сконфигурирован для генерации значения циклического сдвига, специфичного для антенного порта или пространственного уровня, в виде комбинации значения ...

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12-04-2017 дата публикации

СПОСОБ ПЕРЕДАЧИ ПОСРЕДСТВОМ ОБРАТНОЙ СВЯЗИ ИНФОРМАЦИИ О СОСТОЯНИИ КАНАЛА В СИСТЕМЕ БЕСПРОВОДНОЙ СВЯЗИ И СООТВЕТСТВУЮЩЕЕ УСТРОЙСТВО

Номер: RU2615980C2

Изобретение относится к системам беспроводной связи и предназначено для более эффективного сообщения информации о состоянии канала. Изобретение раскрывает способ приема информации конфигурации опорной CSI и информации конфигурации следующей CSI, которая сконфигурирована для сообщения того же самого RI (индикатора ранга), как информация конфигурации опорной CSI, приема информации об ограничениях поднабора кодовой книги предварительного кодирования для опорного процесса CSI и следующего процесса CSI, набор RI (индикатор ранга) следующего процесса CSI конфигурируется так же, как самый последний сообщенный RI опорного процесса CSI, набор RI, ограниченных с помощью ограничения поднабора кодовой книги для следующего процесса CSI, является тем же самым, как набор RI, ограниченных с помощью ограничения поднабора кодовой книги для опорного процесса CSI, и передают CSI, основываясь по меньшей мере на одном из ограничений поднабора кодовой книги. 4 н. и 6 з.п. ф-лы, 20 ил., 2 табл.

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14-05-2018 дата публикации

СИГНАЛИЗАЦИЯ ДЛЯ СКООРДИНИРОВАННОЙ МНОГОТОЧЕЧНОЙ ПЕРЕДАЧИ И ПРИЕМА (CoMP)

Номер: RU2653702C2
Принадлежит: НЕК КОРПОРЕЙШН (JP)

Изобретение относится к технике связи и может использоватьсяв системе беспроводной связи. Технический результат состоит в повышении пропускной способности передачи. Для этого система беспроводной связи включает первую точку передачи и вторую точку передачи, при этом способ беспроводной связи, реализуемый в первой точке передачи, поддерживает скоординированную многоточечную передачу и прием (CoMP). Способ содержит этап передачи на вторую точку передачи одной или более групп гипотез передачи и приема CoMP и этап передачи на вторую точку передачи метрики положительного эффекта, соответствующей каждой группе гипотез передачи и приема CoMP, где метрика положительного эффекта может являться отрицательным значением. 6 н. и 16 з.п. ф-лы, 6 ил.

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27-02-2014 дата публикации

СПОСОБ И УСТРОЙСТВО СБОРА ИНФОРМАЦИИ О СОСТОЯНИИ КАНАЛА

Номер: RU2508598C2
Принадлежит: ЗетТиИ Корпорейшн (CN)

Изобретение относится к системе сотовой связи, использующей усовершенствованный стандарт LTE-A, предусматривающий технологию использования нескольких передающих и нескольких приемных антенн, и предназначено для сбора информации о состоянии канала, совместимых с SU-MIMO и MU-MIMO и обеспечивающих требуемые характеристики системы MU-MIMO. Изобретение раскрывает, в частности, способ сбора информации о состоянии канала, включающий следующие стадии: стадию, на которой абонентское оборудование (АО) сообщает информацию об индексе кодовой книги и информацию об общем числе уровней на базовую станцию (eNB), причем информация об индексе кодовой книги включает одно из следующего: индекс 1 кодовой книги класса 2; и индекс i кодовой книги класса 1 и параметр индекса j; и стадию, на которой после приема информации об индексе кодовой книги и информации об общем числе уровней, посланной абонентским оборудованием, базовая станция получает кодовое слово путем запроса предварительно установленного перечня ...

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27-02-2015 дата публикации

СИСТЕМЫ И СПОСОБЫ КООРДИНАЦИИ ПЕРЕДАЧ В РАСПРЕДЕЛЕННЫХ БЕСПРОВОДНЫХ СИСТЕМАХ ПОСРЕДСТВОМ КЛАСТЕРИЗАЦИИ ПОЛЬЗОВАТЕЛЕЙ

Номер: RU2543092C2
Принадлежит: РИАРДЕН, ЛЛК (US)

Изобретение относится к распределенным беспроводным системам связи и раскрывает координацию передач в распределенных беспроводных системах посредством кластеризации пользователей, в частности способ, который содержит этапы: измеряют качество линии связи между целевым пользователем и множеством распределенных антенн с распределенным входом и распределенным выходом (DIDO) базовых приемопередающих станций (BTS); используют результаты измерения качества линии связи для определения кластера пользователей; измеряют информацию о состоянии канала (CSI) между каждым пользователем и каждой антенной DIDO в пределах определенного кластера пользователей; и выполняют предварительное кодирование передач данных между каждой антенной DIDO и каждым пользователем в кластере пользователей на основе измеренной CSI. 24 з.п. ф-лы, 48 ил.

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20-05-2013 дата публикации

СТРУКТУРА РАСПРЕДЕЛЕННОЙ КООРДИНИРОВАННОЙ МНОГОТОЧЕЧНОЙ (СоМР) НИСХОДЯЩЕЙ ЛИНИИ СВЯЗИ

Номер: RU2482605C2

Изобретение относится к технике связи и может использоваться в системах беспроводной связи. Технический результат состоит в совместном использовании данных между базовыми станциями. Для этого описаны системы и способы, которые обеспечивают динамическое формирование кластеров в системе беспроводной связи. Множество неперекрывающихся кластеров может быть сформировано динамически во времени, и распределенным образом. Каждый из кластеров может включать в себя множество базовых станций и множество мобильных устройств. Кластеры могут быть сформированы на основе множества локальных стратегий, выбранных базовыми станциями в сети, сходимость которых обеспечивается посредством пересылки сообщений. Например, каждая базовая станция может выбрать конкретную локальную стратегию в зависимости от времени, на основе общесетевой оценки полезности, обусловленной реализацией конкретной локальной стратегии и отличных от нее возможных локальных стратегий, которые могут включать в себя соответствующую базовую ...

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20-05-2013 дата публикации

СИСТЕМА И СПОСОБ ДЛЯ РАСПРЕДЕЛЕННОГО МНОЖЕСТВА ВХОДОВ И МНОЖЕСТВА ВЫХОДОВ (MIMO) В СИСТЕМЕ БЕСПРОВОДНОЙ СВЯЗИ

Номер: RU2482629C2

Изобретение относится к технике беспроводной связи и может быть использовано в системах связи с совместной передачей. Технический результата - повышение эффективности передачи. Способ беспроводной связи заключается в приеме в пользовательском оборудовании (UE) сигнализации управления из обслуживающей сетевой соты, причем сигнализация управления ассоциирована с данными, которыми должны обмениваться между базовой сетью и UE; и в приеме в UE части данных, по меньшей мере, в одной передаче из вспомогательной сетевой соты в соответствии с сигнализацией управления, причем эту, по меньшей мере, одну передачу совместно ведут посредством обслуживающей сетевой соты и вспомогательной сетевой соты, причем часть данных, принятая из вспомогательной сетевой соты, маршрутизируется из базовой сети через вспомогательную сетевую соту без маршрутизации через обслуживающую сетевую соту. 4 н. и 22 з.п. ф-лы, 21 ил.

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27-04-2013 дата публикации

СПОСОБ И УСТРОЙСТВО ДЛЯ ПОДДЕРЖКИ МНОГОПОЛЬЗОВАТЕЛЬСКОЙ И ОДНОПОЛЬЗОВАТЕЛЬСКОЙ СХЕМЫ МIМО В СИСТЕМЕ БЕСПРОВОДНОЙ СВЯЗИ

Номер: RU2480909C2

Изобретение относится к технике связи и может использоваться в системах беспроводной связи. Технический результат состоит в повышении помехоустойчивости передачи информации. Для этого описаны методы поддержки распределенных передач по схеме с многими входами и многими выходами (MIMO). В одной разработке пользовательское оборудование (UE) определяет оценки канала для многочисленных сот и сообщает оценки канала. После этого UE принимает передачу данных, посылаемую многочисленными сотами на UE, основываясь на оценках канала. Передача данных может включать в себя, по меньшей мере, один поток данных, и каждый поток данных может посылаться одной сотой или многочисленными сотами на UE. В другой разработке UE определяет первую и вторую оценки канала для первой и второй сот, соответственно, и сообщает оценки канала. UE затем принимает первую передачу данных, посылаемую первой сотой на UE, основываясь на первой оценке канала. UE также принимает вторую передачу данных, посылаемую второй сотой на другое ...

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24-03-2022 дата публикации

ПОЛЬЗОВАТЕЛЬСКИЙ ТЕРМИНАЛ

Номер: RU2768794C1
Принадлежит: НТТ ДОКОМО, ИНК. (JP)

Изобретение относится к области мобильной связи. Технический результат заключается в обеспечении процедуры восстановления после сбоя луча (BFR), даже когда связь выполняется с использованием множества приемопередающих точек в системе радиосвязи. Такой результат достигается за счет обнаружения сбоя луча одной приемопередающей точки, связанной с первым опорным сигналом, причем первый опорный сигнал передают из указанной одной приемопередающей точки, при этом реализована поддержка связывания первого опорного сигнала только с указанной одной приемопередающей точкой. 3 н. и 2 з.п. ф-лы, 22 ил.

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10-05-2018 дата публикации

Номер: RU2016143196A3
Автор:
Принадлежит:

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04-10-2017 дата публикации

ОБОРУДОВАНИЕ ПОЛЬЗОВАТЕЛЯ И СПОСОБ ДЛЯ РЕЖИМА ПРИЕМА С ПЕРЕРЫВАМИ (DRX) В СЕТЯХ БЕСПРОВОДНОЙ ПЕРЕДАЧИ ДАННЫХ

Номер: RU2632187C1
Принадлежит: ИНТЕЛ КОРПОРЕЙШН (US)

Изобретение относится к беспроводной передаче. Технический результат заключается в повышении экономичности использования энергии. Описаны варианты осуществления оборудования пользователя (UE) и способа для режима приема с перерывами (DRX) при беспроводной передаче данных. В некоторых из этих вариантов осуществления UE могут работать для определения значения для параметра DRX, на основе по меньшей мере частично информации, ассоциированной с приложением, работающим в UE. UE может передавать сообщение в улучшенный узел-В (eNB). Сообщение может включать в себя по меньшей мере одно из значения для параметра DRX и информации, ассоциированной с приложением. eNB может определять значения для параметров DRX, которые UE может использовать в режиме DRX. 3 н. и 12 з.п. ф-лы, 4 ил.

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04-10-2022 дата публикации

ПОЛЬЗОВАТЕЛЬСКОЕ ОБОРУДОВАНИЕ, СЕТЕВОЙ УЗЕЛ И СПОСОБ СВЯЗИ

Номер: RU2780827C1

Изобретение относится к области беспроводной связи. Техническим результатом является повышение надежности и устойчивости связи в случае множества точек передачи и приема (Transmission and Reception Point, TRP). Упомянутый технический результат достигается тем, что приемопередатчик пользовательского оборудования (UE) принимает по физическому каналу управления нисходящей линии связи (PDCCH) информацию управления нисходящей линии связи (DCI) для планирования множества передач или приемов между UE и множеством точек приема и передачи (TRP) по множеству каналов, причем DCI содержит один или более индикаторов, указывающих один или более соответствующих параметров передачи, и схема UE получает на основе одного или более индикаторов и конфигурации множество значений соответственно одного или более параметров передачи. Приемопередатчик выполняет множество передач или приемов с использованием соответствующего одного из множества значений одного или более параметров передачи для каждого из множества ...

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28-06-2023 дата публикации

СПОСОБ И УСТРОЙСТВО СВЯЗИ

Номер: RU2798864C1

Изобретение относится к технологиям беспроводной связи. Техническим результатом является повышение надежности и помехоустойчивости связи. Указанный технический результат достигается тем, что способ связи, выполняемый сетевым устройством, включает: конфигурирование по меньшей мере двух параметров временной области и/или по меньшей мере двух принимаемых лучей для пользовательского оборудования (UE) для приема одной и той же информации управления нисходящей линии связи (DCI); и передачу DCI в UE через физический канал управления нисходящей линии связи (PDCCH) на основе упомянутых по меньшей мере двух параметров временной области. 4 н. и 12 з.п. ф-лы, 7 ил., 1 табл.

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06-09-2019 дата публикации

СПОСОБ ДЛЯ ПЕРЕДАЧИ ОТЧЕТА С ИНФОРМАЦИЕЙ СОСТОЯНИЯ КАНАЛА В СИСТЕМЕ БЕСПРОВОДНОЙ СВЯЗИ И УСТРОЙСТВО ДЛЯ ЭТОГО

Номер: RU2699586C1

Изобретение относится к беспроводной связи и, в частности, к способу и устройству для передачи отчета с информацией состояния канала (CSI). Техническим результатом изобретения является обеспечение способа для определения смещения слота, связанного с отчетом CSI, когда посредством информации DCI инициируется множество настроечных параметров отчета. Технический результат достигается за счет того, что в способе выполняется прием от базовой станции сигнализации RRC, которая содержит множество настроечных параметров отчета, причем каждый настроечный параметр отчета содержит соответствующий список первых значений, представляющих смещения времени для передачи отчета CSI, формируя множество списков первых значений; прием от базовой станции информации DCI, инициирующей отчет CSI, причем информация DCI содержит значение индекса, относящееся ко времени, в которое следует передать отчет CSI на канале PUSCH; определение на основе информации DCI множества элементов списка; определение второго значения ...

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25-10-2019 дата публикации

Способ передачи сигналов, сетевое оборудование и терминальное оборудование

Номер: RU2704254C1
Автор: ТАН Хай (CN)

Изобретение относится к технике связи и может использоваться в системах связи. Технический результат состоит в повышении качества связи терминальных устройств. Для этого в способе определяют расположение частотно-временных ресурсов сигнала нисходящей линии связи, причем сигнал нисходящей линии связи содержит по меньшей мере один сигнал из сигнала синхронизации, широковещательного сигнала, сигнала общего канала управления, общего опорного сигнал или измерительного опорного сигнала, при этом частотно-временные ресурсы сигнала нисходящей линии связи располагаются на множестве частот несущей в течение заранее заданного времени, и это множество частот являются частью частот в пределах ширины полосы несущей; и передают сигнал нисходящей линии связи в соответствии с расположением частотно-временных ресурсов сигнала нисходящей линии связи. 2 н.и 15 з.п. ф-лы, 12 ил.

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10-05-2016 дата публикации

СПОСОБ ИДЕНТИФИКАЦИИ И ДИФФЕРЕНЦИАЦИИ ФОНОВОГО ТРАФИКА

Номер: RU2014141602A
Принадлежит:

... 1. Оборудование пользователя, содержащее:радиоустройство, включающее в себя приемопередатчик, выполненный с возможностью беспроводной передачи и приема пакетов через сеть передачи данных; ипроцессор, соединенный с приемопередатчиком, процессор, выполненный с возможностью предоставления индикации, идентифицирующей пакеты, ассоциированные с фоновым трафиком.2. Оборудование пользователя по п. 1, в котором индикация, обозначающая пакеты, ассоциированные с фоновым трафиком, содержит бит в заголовке пакета, в котором бит установлен в первое состояние для обозначения, что пакет ассоциирован с фоновым трафиком, и бит установлен во второе состояние для обозначения пакета, ассоциированного с активным трафиком.3. Оборудование пользователя по п. 2, в котором индикация, ассоциирующая пакеты, ассоциированные с фоновым трафиком, предоставляется приложениями через интерфейс программирования приложения (API).4. Оборудование пользователя по п. 1, в котором индикация, идентифицирующая пакеты, ассоциированные ...

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20-11-2016 дата публикации

СПОСОБ ОБРАБОТКИ ИНФОРМАЦИИ О СОСТОЯНИИ КАНАЛА, СЕТЕВОЕ УСТРОЙСТВО И ПОЛЬЗОВАТЕЛЬСКОЕ ОБОРУДОВАНИЕ

Номер: RU2015115881A
Принадлежит:

... 1. Способ обработки информации о состоянии канала, содержащий этапы, на которых:принимают, с помощью пользовательского оборудования, первый запрос информации о состоянии канала (CSI) от первого сетевого устройства, при этом первый запрос CSI используется для запуска апериодического представления отчета по CSI;после приема запроса CSI, если апериодическая CSI, соответствующая множеству апериодическим процессам CSI, не была предоставлена в отчете пользовательским оборудованием, передают с помощью пользовательского оборудования апериодическую CSI на первое сетевое устройство или второе сетевое устройство, при этом каждый процесс CSI ассоциирован с ресурсом измерения канала и ресурсом измерения помехи, и апериодическая CSI, соответствующая части множества апериодических процессов CSI, заменяется предыдущим результатом измерения и апериодическая CSI содержит предыдущий результат измерения.2. Способ по п. 1, дополнительно содержащий этап, на котором отбрасывают обработку апериодической CSI, соответствующей ...

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20-12-2016 дата публикации

РАСПРЕДЕЛЕННАЯ КООРДИНИРОВАННАЯ МНОГОТОЧЕЧНАЯ СВЯЗЬ ПО ВОСХОДЯЩЕЙ ЛИНИИ СВЯЗИ, ОСНОВАННАЯ НА БУФЕРНОЙ ПАМЯТИ

Номер: RU2015120299A
Принадлежит:

... 1. Способ обеспечения поддержки координированной многоточечной передачи (CoMP) в сети беспроводной связи включает в себя:прием на взаимодействующей базовой станции (46b) запроса поддержки СоМР от обслуживающей базовой станции (46а), причем запрос поддержки СоМР является запросом поддержки для декодирования первой передачи (S102) от пользовательского оборудования (UE) (14);прием на взаимодействующей базовой станции (46b) первой передачи (S100) от UE (14), причем первая передача от UE (14) принимается на взаимодействующей базовой станции (46b) в один из момента времени перед приемом запроса поддержки СоМР и момента времени после приема запроса поддержки СоМР;определение на взаимодействующей базовой станции (46b) полезной нагрузки (26) СоМР в ответ на запрос поддержки СоМР, причем полезная нагрузка (26) СоМР основана на принимаемой первой передаче (S104) от UE (14); ипересылка полезной нагрузки СоМР на обслуживающую базовую станцию (46а) после того, как обслуживающая базовая станция (46а) ...

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20-12-2016 дата публикации

СПОСОБ ОБРАБОТКИ ИНФОРМАЦИИ О СОСТОЯНИИ КАНАЛА, БАЗОВАЯ СТАНЦИЯ И ТЕРМИНАЛ

Номер: RU2015120615A
Принадлежит:

... 1. Способ обработки информации о состоянии канала (CSI), включающий:конфигурирование базовой станцией для терминала множества процессов CSI, каждый из которых по меньшей мере включает информацию части измерений канала и информацию части измерений помех;если базовая станция конфигурирует соответствующие эталонные процессы CSI для некоторых или всех процессов CSI, по меньшей мере ограничение индикатора ранга (RI) процессов CSI для вычисления отчета о CSI таким образом, чтобы он был совместим с RI эталонных процессов CSI, путем конфигурирования эталонных процессов CSI; и для процессов CSI, сконфигурированных с использованием эталонных процессов CSI, прием базовой станцией отчета о CSI процессов CSI согласно RI, или RI и индикатору типа предварительного кодирования (PTI), или RI и индикатору матрицы предварительного кодирования (PMI0), соответствующих эталонным процессам CSI.2. Способ по п. 1, включающий также:в том случае если возникает конфликт RI, или RI и PTI, или RI и PMI0, соответствующих ...

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20-02-2016 дата публикации

СПОСОБЫ УЛУЧШЕННОЙ МНОГОАДРЕСНОЙ ПЕРЕДАЧИ КОНТЕНТА

Номер: RU2014131733A
Принадлежит:

... 1. Оборудование пользователя (UE), содержащее:радиочастотный (RF) приемник для приема многоадресной передачи, содержащей описание услуг для пользователя (USD) по протоколу мультимедийной широковещательной передачи/многоадресной службы (MBMS), причем многоадресная передача содержит раздел описания и раздел соответствия; исхему процессора для идентификации пакета потоков многоадресного контента, содержащего потоки многоадресного контента, основываясь на разделе соответствия, причем каждый из множества потоков многоадресного контента соответствует одной из множества версий контента, и выбора одного из потоков многоадресного контента для обработки, основываясь на характеристиках, идентифицированных в разделе описания.2. Оборудование пользователя по п. 1, в котором схема процессора предназначена для рендеринга и воспроизведения мультимедийного контента из одного из потоков многоадресного контента.3. Оборудование пользователя по п. 1, в котором схема процессора предназначена для адаптивного переключения ...

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04-06-2018 дата публикации

СИНХРОНИЗАЦИЯ ВРЕМЕННЫХ ХАРАКТЕРИСТИК ДЛЯ НИСХОДЯЩЕЙ (DL) ПЕРЕДАЧИ В СКООРДИНИРОВАННЫХ МНОГОТОЧЕЧНЫХ (CoMP) СИСТЕМАХ

Номер: RU2656234C1
Принадлежит: ИНТЕЛ КОРПОРЕЙШН (US)

Изобретение относится к технике связи и может использоваться в системах беспроводной связи. Технический результат состоит в повышении надежности связи. Для этого раскрыта технология для регулирования временной характеристики приемника беспроводного устройства в скоординированной многоточечной (CoMP) системе. В соответствии с одним из способов обрабатывают в UE множество специфичных для узла опорных сигналов (RS), принимаемых от множества узлов в конфигурации CoMP, генерируют множество специфичных для узла временных характеристик RS, принимаемых антенными портами по меньшей мере для двух узлов, выполняют оценку средней временной задержки из множества временных характеристик принятых RS и регулируют временные характеристики приемника в составе UE по меньшей мере частично, на основе средней временной задержки. 3 н. и 21 з.п. ф-лы, 11 ил.

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20-10-2015 дата публикации

СИНХРОНИЗАЦИЯ ВРЕМЕННЫХ ХАРАКТЕРИСТИК ДЛЯ НИСХОДЯЩЕЙ (DL) ПЕРЕДАЧИ В СКООРДИНИРОВАННЫХ, МНОГОТОЧЕЧНЫХ (СоМР) СИСТЕМАХ

Номер: RU2565245C1
Принадлежит: ИНТЕЛ КОРПОРЕЙШН (US)

Изобретение относится к беспроводной мобильной связи и предназначено для координации взаимных помех между сотами (ICIC) и улучшения (ICIC), используется для координации ресурса, для уменьшения взаимных помех между узлами, такими как макроузлы и узлы мощности в гетерогенной сети. В изобретении раскрыта технология для регулирования временной характеристики приемника беспроводного устройства в скоординированной многоточечной системе (СоМР). Один способ может включать в себя беспроводное устройство, включающее в себя множество специфичных для узла опорных сигналов (RS) из множества взаимодействующих узлов в наборе координации системы СоМР. Набор координации включает в себя, по меньшей мере, два взаимодействующих узла. Беспроводное устройство может выполнять оценку композитной принятой временной характеристики RS из множества временных характеристик принятого RS, генерируемых из множества специфичных для узла RS. Временные характеристики принятого RS представляют временные характеристики из, ...

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23-03-2018 дата публикации

ПОЛЬЗОВАТЕЛЬСКОЕ УСТРОЙСТВО, УСТРОЙСТВО УЗЛА ДОСТУПА, ЦЕНТРАЛЬНЫЙ КОНТРОЛЛЕР СЕТИ И СООТВЕТСТВУЮЩИЕ СПОСОБЫ

Номер: RU2648272C1

Изобретение относится к области связи. Технический результат заключается в использовании эффективных способов для создания соединения и управления мобильностью. Пользовательское устройство содержит приемопередатчик, выполненный с возможностью синхронизации с сетью радиосвязи, причем вышеуказанный приемопередатчик дополнительно выполнен с возможностью широковещательной передачи сигнала маяка, содержащего по меньшей мере один опорный сигнал, на одно или более устройств узлов доступа вышеуказанной сети радиосвязи. Устройство узла доступа содержит приемопередатчик, выполненный с возможностью приема широковещательного сигнала маяка от пользовательского устройства, синхронизированного с вышеуказанной сетью радиосвязи; и дополнительный процессор, выполненный с возможностью получения информации из вышеуказанного принятого широковещательного сигнала маяка и использования вышеуказанной полученной информации в сетевой процедуре вышеуказанной сети радиосвязи. 3 н. и 6 з.п. ф-лы, 12 ил.

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27-04-2018 дата публикации

УЗЕЛ СЕТИ И СПОСОБ В НЕМ ДЛЯ ВЫПОЛНЕНИЯ СОМР-ПРИЕМА ПЕРЕДАЧИ ОТ БЕСПРОВОДНОГО УСТРОЙСТВА

Номер: RU2652321C1

Изобретение относится к технике связи и может использоваться в системах беспроводной связи. Технический результат состоит в повышении пропускной способности каналов передачи. Для этого способ содержит этапы, на которых определяют (110) доступную пропускную способность транспортной сети точки приема обслуживающей RBS и по меньшей мере одной потенциальной точки приема соответственной(-ых) дополнительной(-ых) RBS; и определяют (120) качество принятого сигнала для принятого сигнала, переданного от беспроводного устройства, принятого точкой приема обслуживающей RBS и принятого по меньшей мере одной потенциальной точкой приема соответственной(-ых) дополнительной(-ых) RBS. Способ содержит этапы, на которых определяют (130) взаимодействующую точку(-и) приема, которая должна быть включена в CoMP-прием передачи от беспроводного устройства, и определяют TBS для передачи от беспроводного устройства на основе определенной доступной пропускной способности транспортной сети и качества принятого сигнала ...

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20-09-2012 дата публикации

СПОСОБ И УСТРОЙСТВО ДЛЯ ПОДДЕРЖКИ МНОГОПОЛЬЗОВАТЕЛЬСКОЙ И ОДНОПОЛЬЗОВАТЕЛЬСКОЙ СХЕМЫ МIМО В СИСТЕМЕ БЕСПРОВОДНОЙ СВЯЗИ

Номер: RU2011108544A
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... 1. Способ приема данных в системе беспроводной связи, содержащий: ! определение оценок канала для многочисленных сот пользовательским оборудованием (UE); ! посылку оценок канала с UE на по меньшей мере одну из многочисленных сот; и ! прием передачи данных, посылаемой многочисленными сотами на UE, на основе оценок канала. ! 2. Способ по п.1, в котором передача данных содержит по меньшей мере один поток данных, причем каждый поток данных посылается многочисленными сотами на UE. ! 3. Способ по п.1, в котором передача данных содержит многочисленные потоки данных, причем каждый поток данных посылается одной из многочисленных сот на UE. ! 4. Способ по п.1, в котором передача данных посылается многочисленными сотами по ресурсам, используемым для посылки второй передачи данных на второе UE. ! 5. Способ по п.1, в котором передача данных посылается многочисленными сотами по ресурсам, не используемым для посылки передач данных на другие UE. ! 6. Способ по п.1, в котором передача данных посылается ...

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10-09-2012 дата публикации

СИСТЕМА И СПОСОБ ДЛЯ РАСПРЕДЕЛЕННОГО МНОЖЕСТВА ВХОДОВ И МНОЖЕСТВА ВЫХОДОВ (MIMO) В СИСТЕМЕ БЕСПРОВОДНОЙ СВЯЗИ

Номер: RU2011107598A
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... 1. Способ, содержащий этапы, на которых: ! идентифицируют обслуживающую сетевую соту и вспомогательную сетевую соту; ! обмениваются управляющей информацией, по меньшей мере, с обслуживающей сетевой сотой; и ! обмениваются данными, по меньшей мере, в одной передаче совместно ведущейся обслуживающей сетевой сотой и вспомогательной сетевой сотой. ! 2. Способ по п.1, в котором обмен данными включает в себя этап, на котором обмениваются данными с обслуживающей сетевой сотой и вспомогательной сетевой сотой, по меньшей мере, в одной передаче. ! 3. Способ по п.2, в котором, по меньшей мере, одна передача соответствует набору символов модуляции. ! 4. Способ по п.3, в котором обслуживающая сетевая сота и вспомогательная сетевая сота применяют соответствующие веса формирования луча к соответствующим символам модуляции в наборе символов модуляции. ! 5. Способ по п.4, дополнительно содержащий этап, на котором принимают информацию, указывающую соответствующие веса формирования луча, примененные обслуживающей ...

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27-05-2012 дата публикации

СПОСОБЫ КООПЕРАТИВНОЙ СВЯЗИ

Номер: RU2010142904A
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... 1. Способ, содержащий этапы, на которых: ! выбирают набор из двух или более кооперирующих устройств; и ! определяют одну или более характеристик для двух или более повторных передач, каждая из которых осуществляется из одного соответствующего кооперирующего устройства из упомянутых двух или более кооперирующих устройств; ! причем каждая из упомянутых двух или более повторных передач является повторной передачей исходной передачи, отправленной устройством-источником. ! 2. Способ по п.1, в котором упомянутые два или более кооперирующих устройства включают в себя одно или более кооперирующих устройств, которые подтвердили прием исходной передачи из устройства-источника. ! 3. Способ по п.1, содержащий этап, на котором модифицируют набор кооперирующих устройств и характеристики повторной передачи для разных повторных передач. ! 4. Способ по п.1, в котором на этапе определения одной или более характеристик назначают один или более ресурсов для упомянутых двух или более повторных передач. ! 5.

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20-09-2015 дата публикации

СПОСОБ ПРЕДОСТАВЛЕНИЯ ОТЧЕТА С ИНФОРМАЦИЕЙ О СОСТОЯНИИ КАНАЛА, ПОЛЬЗОВАТЕЛЬСКОЕ ОБОРУДОВАНИЕ И БАЗОВАЯ СТАНЦИЯ

Номер: RU2014108325A
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... 1. Способ предоставления отчета с информацией о состоянии канала, включающий в себя:прием посредством пользовательского оборудования, сигнальной индикации, передаваемой базовой станцией, причем сигнальная индикация содержит идентификационную информацию для запуска предоставления отчета с информацией о состоянии канала;определение набора измерений, которому соответствует отчет с информацией о состоянии канала, согласно идентификационной информации, причем набор измерений содержит информацию об одной или более точках передачи пользовательского оборудования; ипредоставление отчета с соответствующей информацией о состоянии канала в базовую станцию в соответствии с набором измерений.2. Способ по п. 1, в котором перед этапом приема пользовательским оборудованием сигнальной индикации, переданной базовой станцией, способ дополнительно содержит:прием сигналов высокого уровня, переданных базовой станцией, причем сигналы высокого уровня содержат соответствующую взаимосвязь между идентификационной ...

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20-09-2012 дата публикации

СПОСОБ И УСТРОЙСТВО ДЛЯ ПОДДЕРЖКИ РАСПРЕДЕЛЕННОЙ СХЕМЫ MIMO В СИСТЕМЕ БЕСПРОВОДНОЙ СВЯЗИ

Номер: RU2011109033A
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... 1. Способ беспроводной связи, содержащий этапы, на которых: ! определяют в абонентском устройстве (UE) первую оценку канала для первой соты; ! определяют в UE вторую оценку канала для второй соты; ! отправляют от UE первую и вторую оценки каналов на по меньшей мере одну из первой и второй соты; ! принимают первую передачу, отправленную первой сотой на основе первой оценки канала; и ! принимают вторую передачу, отправленную второй сотой на основе второй оценки канала, при этом первую и вторую передачи принимают на одних и тех же ресурсах. ! 2. Способ по п.1, в котором первую передачу отправляют в UE посредством первой соты, и в котором вторую передачу отправляют посредством второй соты на основе второй оценки канала для уменьшения помех для UE. ! 3. Способ по п.1, дополнительно содержащий этапы, на которых: ! определяют информацию указателя качества канала (CQI) для первой соты; и ! отправляют информацию CQI в первую соту, при этом первую передачу отправляют посредством первой соты дополнительно ...

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10-12-2012 дата публикации

СПОСОБ СОГЛАСОВАННОЙ МНОГОТОЧЕЧНОЙ ПЕРЕДАЧИ ИНФОРМАЦИИ В СЕТИ БЕСПРОВОДНОЙ СВЯЗИ И СРЕДСТВА ДЛЯ ЕГО ОСУЩЕСТВЛЕНИЯ

Номер: RU2011120064A
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... 1. Способ согласованной многоточечной передачи информации в сети беспроводной связи, имеющей полное число сот, обслуживаемых соответствующими базовыми станциями, при этом способ содержит:прием из мобильного устройства внутри сети идентификатора кластера предпочтительных сот, выбранного из кластера подходящих сот, причем кластер подходящих сот представляет собой подмножество полного числа сот внутри сети;выбор, по крайней мере, одной базовой станции, расположенной внутри кластера предпочтительных сот, для установления связи с данным мобильным устройством; иустановление беспроводного соединения между выбранной, по крайней мере, одной базовой станцией и мобильным устройством.2. Способ по п.1, в котором мобильное устройство способно работать с использованием набора частотных полос и в котором кластер подходящих сот меняется в зависимости от рабочей полосы частот из набора частотных полос.3. Способ по п.1, в котором кластер подходящих сот меняется со временем.4. Способ по п.1, в котором кластер ...

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20-06-2013 дата публикации

СПОСОБ И УСТРОЙСТВО ДЛЯ ОПРЕДЕЛЕНИЯ ВЕКТОРА ПРЕДКОДИРОВАНИЯ

Номер: RU2011149558A
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... 1. Способ (100) для определения вектора предкодирования (p) для предварительного кодирования данных, которые будут переданы беспроводному устройству в системе беспроводной связи, содержащий следующие стадии:получение (110) информации о состоянии первого канала между первым беспроводным устройством и первой базовой станцией в системе беспроводной связи, в котором информация о состоянии первого канала принимается первой базовой станцией от первого беспроводного устройства;получение (120) информации об усилении первого канала (h) между вторым беспроводным устройством и первой базовой станцией, в котором информация об усилении первого канала (h) принимается от второй базовой станции;получение (130) параметра мощности первого сигнала (b) от второй базовой станции, указывающего на мощность сигнала, создаваемого второй базовой станцией во втором беспроводном устройстве;получение (140) параметра мощности первой помехи (a) от второй базовой станции, указывающего на мощность помехи, создаваемой второй ...

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10-11-2013 дата публикации

СПОСОБ СИГНАЛИЗАЦИИ ПРЕДВАРИТЕЛЬНОГО КОДИРОВАНИЯ В РЕЖИМЕ ПЕРЕДАЧИ С СОВМЕСТНЫМ ФОРМИРОВАНИЕМ ДИАГРАММЫ НАПРАВЛЕННОСТИ

Номер: RU2012118644A
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... 1. Способ управления вторичной станцией (410, 610, 710, 810) в сети, причем вторичная станция содержит приемопередающее устройство, выполненное с возможностью одновременного приема передач (4002a, 4002b) из первой первичной станции (400a, 600a, 700a, 800a), управляющей первой сотой (401a, 601a, 701a, 801a), и передач, по меньшей мере, из одной второй первичной станции (400b, 600b, 700b, 800b), управляющей второй сотой (401b, 601b, 701b, 801b), при этом способ содержит этапы, на которых посредством вторичной станции:(a) выбирают первую матрицу предварительного кодирования для первой соты из первичного набора матриц предварительного кодирования для первой соты,(b) выбирают, в зависимости от первой матрицы предварительного кодирования в соответствии со схемой предварительного кодирования, поднабор из вторичного набора матриц предварительного кодирования для второй соты, причем поднабор состоит, по меньшей мере, из одной матрицы предварительного кодирования для второй соты,(c) выбирают вторую ...

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27-01-2009 дата публикации

ОГРАНИЧЕННОЕ ПЕРЕКЛЮЧЕНИЕ КАНАЛОВ В БЕСПРОВОДНЫХ СИСТЕМАХ СВЯЗИ

Номер: RU2007127882A
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... 1. Способ оценки канала в беспроводной системе связи, работающей в пределах данной полосы частот, содержащий этапы, на которых принимают множество пилот-сигналов более чем в одном поддиапазоне полосы частот и оценивают отклик канала на основании некоторых из множества пилот-сигналов, принятых в одном поддиапазоне, для одного поддиапазона, причем этап, на котором оценивают отклик канала, дополнительно содержит этап, на котором используют, по меньшей мере, часть пилот-сигналов, принятых в одном или более соседних поддиапазонах, для оценки отклика канала для одного поддиапазона. 2. Способ по п.1, в котором этап, на котором оценивают отклик канала, дополнительно содержит этап, на котором используют пилот-сигналы, принятые в соседних поддиапазонах, для оценки отклика канала в одном поддиапазоне, и в котором используемые пилот-сигналы находятся в заданном диапазоне частот от краев одного поддиапазона. 3. Способ по п.1, в котором один поддиапазон включает в себя только смежные поднесущие частоты ...

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20-03-2015 дата публикации

СПОСОБЫ И УСТРОЙСТВА ДЛЯ КООРДИНАЦИИ ОТПРАВКИ ОПОРНЫХ СИГНАЛОВ ИЗ НЕСКОЛЬКИХ СОТ

Номер: RU2013141147A
Автор: ЛО Тао (US)
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... 1. Способ, содержащий этапы, на которых:- определяют изменение во времени уровня помех, испытываемого приемным устройством;- формируют первую оценку канала для канала беспроводной связи в первый раз;- формируют вторую оценку канала для канала беспроводной связи во второй раз;- взвешивают первую оценку канала и вторую оценку канала в соответствии с изменением во времени, тем самым формируя первую взвешенную оценку канала и вторую взвешенную оценку канала; и- вычисляют взвешенную оценку канала на основе первой взвешенной оценки канала и второй взвешенной оценки канала.2. Способ по п. 1, в котором определение включает в себя этап, на котором измеряют параметр первого опорного сигнала, принимаемого из первого сетевого узла, и параметр второго опорного сигнала, принимаемого из второго сетевого узла.3. Способ по п. 1, в котором первый раз происходит в течение первого периода субкадра, и в котором второй раз происходит в течение второго периода субкадра.4. Способ по п. 1, дополнительно включающий ...

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20-11-2015 дата публикации

СПОСОБ ОПРЕДЕЛЕНИЯ ИНДИКАТОРА КАЧЕСТВА КАНАЛА, БАЗОВАЯ СТАНЦИЯ И ПОЛЬЗОВАТЕЛЬСКОЕ ОБОРУДОВАНИЕ ДЛЯ ЭТОГО

Номер: RU2013152979A
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... 1. Способ приема индикатора качества канала (CQI), содержащий этапы, на которых:передают в UE коэффициент для каждого из типов координации базовой станции; ипринимают CQI, сообщенный от UE, причем CQI вычислен в UE в отношении упомянутого коэффициента.2. Способ по п. 1, в котором типами координации базовой станции являются гипотезы по скоординированной передаче среди множества базовых станций, и причем упомянутый коэффициент устанавливают для каждой из гипотез.3. Способ по п. 1, в котором упомянутый коэффициент передают в UE через уровень управления радиоресурсами, уровень управления доступом к среде или физический канал управления нисходящей линии связи.4. Способ по п. 1, в котором каждый из типов координации базовой станции включает в себя узел с высоким уровнем мощности и один или множество узлов с более низким уровнем мощности.5. Способ по п. 1, в котором CQI вычислен в UE посредством вычитания упомянутого коэффициента из исходного CQI.6. Способ по п. 1, в котором CQI вычислен в UE ...

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10-11-2015 дата публикации

СПОСОБ И УСТРОЙСТВО ДЛЯ ПЕРЕДАЧИ И ПРИЕМА СИГНАЛА В РАСПРЕДЕЛЕННОЙ АНТЕННОЙ СИСТЕМЕ

Номер: RU2014117706A
Принадлежит:

... 1. Способ определения начального состояния в распределенной антенной системе (DAS), причем способ содержит:прием значения через сигнализацию высокого уровня; иопределение начального состояния на основе упомянутого значения, причем это значение указывает значение, на которое установлено начальное состояние последовательности скремблирования, которое отличается в зависимости от точки передачи.2. Способ по п. 1, в котором начальное состояние определяется на основе по меньшей мере одного из позиции антенного порта, количества антенных портов и диаграммы направленности антенны.3. Способ по п. 1, в котором значение состоит из 9 бит.4. Способ по п. 1, в котором по меньшей мере одного из начальных состояний является унаследованным начальным состоянием.5. Способ по п. 1, в котором начальное состояние для расширенного физического нисходящего канала управления (E-PDCCH) представляет собой значение, ранее установленное через сигнализацию высокого уровня.6. Устройство для определения начального состояния ...

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20-05-2016 дата публикации

НИСХОДЯЩАЯ ПЕРЕДАЧА УПРАВЛЯЮЩИХ СИГНАЛОВ СКООРДИНИРОВАННОЙ МНОГОТОЧЕЧНОЙ БЕСПРОВОДНОЙ СВЯЗИ

Номер: RU2014142573A
Принадлежит:

... 1. Способ, включающий передачу от первой базовой станции первой информации с указанием первого ограничения исходного положения нисходящей передачи данных по меньшей мере первой базовой станцией или по меньшей мере второй базовой станцией, ипередачу от первой базовой станции второй информации, содержащей информационный бит, причем комбинация этого бита и первой информации указывает исходное положение нисходящей передачи данных.2. Способ по п. 1, в котором передача первой информации включает передачу информации уровня управления радиоресурсами (RRC) с указанием первого и второго потенциальных моментов начала нисходящей передачи данных, причем значение бита указывает, является ли первый потенциальный момент начала передачи или второй потенциальный момент начала передачи начальным символом нисходящей передачи данных.3. Способ по п. 1, включающий передачу указателя формата по каналу управления с указанием первого потенциального момента начала передачи, определенного путем резервирования канала ...

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10-05-2016 дата публикации

СПОСОБ ПЕРЕДАЧИ ИНФОРМАЦИИ УПРАВЛЕНИЯ ВОСХОДЯЩЕЙ ЛИНИИ СВЯЗИ

Номер: RU2014141164A
Принадлежит:

... 1. Способ передачи информации о состоянии канала (CSI) множества скоординированных точек в скоординированной многоточечной (CoMP) системе, содержащий этапы, на которых:кодируют CSI множества скоординированных точек;модулируют кодированную CSI множества скоординированных точек; имультиплексируют модулированную CSI в физическом совместно используемом канале восходящей линии связи (PUSCH), при этомпри мультиплексировании индикатора ранга (RI) в CSI мультиплексируют различные RI для различных рангов восходящей линии связи, ипри мультиплексировании индикатора качества канала/индикатора матрицы предварительного кодирования (CQI/PMI) в CSI мультиплексируют CQI/PMI в кодовом слове с наивысшим порядком модуляции и кодирования и в других кодовых словах.2. Способ по п. 1, в котором CSI множества скоординированных точек кодируют посредством одного из совместного кодирования, раздельного кодирования и гибридного кодирования.3. Способ по п. 2, в котором при мультиплексировании CSI в PUSCH выделяют одни ...

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10-10-2016 дата публикации

СПОСОБ И УСТРОЙСТВО ИЗМЕРЕНИЯ ПОМЕХ ДЛЯ ИСПОЛЬЗОВАНИЯ В РАСПРЕДЕЛЕННОЙ АНТЕННОЙ СИСТЕМЕ

Номер: RU2015110508A
Принадлежит:

... 1. Способ передачи информации состояния канала на основе измерения помех терминала в распределенной антенной системе (DAS), при этом способ содержит этапы, на которых:- принимают конфигурацию ресурса для измерений помех (IMR) для измерения помех, вызываемых посредством нескольких точек передачи (TP);- принимают управляющую информацию, включающую в себя информацию диспетчеризации, по физическому совместно используемому каналу нисходящей линии связи (PDSCH);- определяют то, возникают ли измерение помех на основе IMR и PDSCH-прием в одном и том же субкадре; и- передают информацию состояния канала, сформированную согласно результату определения.2. Способ по п. 1, в котором передача информации состояния канала содержит этап, на котором формируют, когда измерение помех на основе IMR и PDSCH-прием возникают в одном и том же субкадре, информацию состояния канала с использованием предыдущего результата измерения помех без выполнения измерения помех в соответствующем субкадре.3. Способ по п. 1, в ...

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13-01-2011 дата публикации

Kommunikationstechniken mit Zusammenarbeit

Номер: DE112009000395T5
Принадлежит: INTEL CORP, INTEL CORPORATION

Verfahren, das aufweist: Auswählen eines Satzes aus zwei oder mehr zusammen arbeitenden Einheiten; und Festlegen einer oder mehrerer Eigenschaften für zwei oder mehr erneute Übertragungen, wobei jede der zwei oder mehr erneuten Übertragungen von einer entsprechenden der zwei oder mehr zusammen arbeitenden Einheiten geschieht; wobei jede der zwei oder mehr erneuten Übertragungen von einer anfänglichen Übertragung herrührt, die von einer Quelleneinheit verschickt worden ist.

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04-07-2019 дата публикации

INTERFERENZUNTERDRÜCKUNG UND -AUSRICHTUNG FÜR ZELLULARE NETZWERKE

Номер: DE102013223236B4

Verfahren zur Vereinfachung einer Interferenzausrichtung an einem Benutzergerät mitBerechnen eines Dienstkanalschätzwerts von einer Dienstbasisstation und von einem oder mehreren Interferenzkanalschätzwerten von einer oder mehreren interferierenden Basisstationen während einer festgelegten Zeit- und Frequenz-(Zeit-/Frequenz)-Zone,Bestimmen eines Dienstbasisstation-Precodervektors für die Dienstbasisstation beruhend auf dem Dienstkanalschätzwert,Bestimmen eines oder mehrerer Begleit-Precodervektoren für die eine oder mehreren interferierenden Basisstationen beruhend auf dem Dienstbasisstation-Precodervektor und/oder dem einen oder den mehreren Interferenzkanalschätzwerten, undSenden des Dienstbasisstation-Precodervektors und des einen oder der mehreren Begleit-Precodervektoren zu der Dienstbasisstation.

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02-08-2012 дата публикации

Drahtloses lokales Netz und Zugangsknoten für ein drahtloses lokales Netz

Номер: DE102008045777B4
Принадлежит: LANTIQ DEUTSCHLAND GMBH

Verfahren umfassend: Zuweisen einer ersten Client-Station zu einer durch einen Zugangsknoten bedienten ersten Basisdienstmenge (300); Zuweisen einer zweiten Client-Station zu einer durch den Zugangsknoten bedienten zweiten Basisdienstmenge (310); gleichzeitiges Empfangen oder Senden erster Daten auf einem ersten drahtlosen Kanal zwischen dem Zugangsknoten und der ersten Client-Station und zweiter Daten auf einem zweiten drahtlosen Kanal zwischen dem Zugangsknoten und der zweiten Client-Station (320), wobei das Empfangen oder Senden der ersten und zweiten Daten ein Verarbeiten der ersten Daten in einer ersten MAC-Einheit des Zugangsknotens und ein Verarbeiten der zweiten Daten in einer zweiten MAC-Einheit des Zugangsknotens umfasst, und wobei das Empfangen oder Senden der ersten und zweiten Daten ein Koordinieren der Verarbeitung der ersten Daten durch die erste MAC-Einheit mit der Verarbeitung der zweiten Daten durch die zweite MAC-Einheit umfasst.

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15-04-2015 дата публикации

Process and apparatus for communicating with a user antenna

Номер: GB0201503613D0
Автор:
Принадлежит:

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26-05-2010 дата публикации

Remotely weighted sdma transmission

Номер: GB0201005794D0
Автор:
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03-04-2013 дата публикации

Mobile terminal handover in an LTE network

Номер: GB0201302687D0
Автор:
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11-12-2013 дата публикации

Increasing cellular communication data throughput

Номер: GB0201318819D0
Автор:
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08-06-2011 дата публикации

Methods adn apparatus for compensating propagation delays in coordinated multi-point transmission

Номер: GB0201107074D0
Автор:
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19-10-2011 дата публикации

COMPENSATING FOR PROPAGATION DELAYS IN COORDINATED MULTI-POINT TRANSMISSION

Номер: GB0002479658A
Принадлежит:

An apparatus (UE) for communication using coordinated multi-point transmission (CoMP) deterinines a linear phase variation between at least first and second transmissions from first and second transmission points based at least in part on a propagation delay difference between the first and second transmissions, and transmits the phase variation information for at least the first and the second transmissions to a transmission point. An apparatus configured to operate as a transmission point in a network receives the linear phase variation information indicating phase variation experienced by at least one user equipment resulting from a propagation delay difference between at least the apparatus and a second apparatus operating as a second transmission point and manages transmission so as to control phase variation resulting from the propagation delay difference.

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07-03-2012 дата публикации

Base station cooperation in a MIMO wireless communication system using inter-group interference information to improve system performance

Номер: GB0002483306A
Принадлежит:

In a multiple-input multiple-output (MIMO) wireless communication system, base stations 2 are organised into a plurality of groups, i.e. Base Station Cooperation (BSC) 1. In a given group 4 of base stations 2 serving one or more user equipments 3, those serving base stations 2 coordinate with each other to simultaneously transmit signals to the one or more served user equipments 3, i.e. â Joint Transmissionâ . One or more of the served user equipments 3 feed back information to one or more of those serving base stations 2. The fed back information incorporates inter-group interference, or â out of group interferenceâ (OGI), information related to interference between different base station groups. Signals are processed for simultaneous transmission by base stations 2 of a group 4 to one or more user equipments 3 served by that group 4 and the information fed back to the base stations 2 of that group 4 is used to improve system performance.

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08-08-2012 дата публикации

Method and apparatus for multiple input multiple output distributed antenna arrays

Номер: GB0201211156D0
Автор:
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20-07-2016 дата публикации

Improvements in and relating to network configuration

Номер: GB0201609692D0
Автор:
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21-02-2018 дата публикации

Communication system

Номер: GB0002552953A
Принадлежит:

A communication system is disclosed in which a base station serves a communication area, wherein the communication area is formed by a plurality of directional beams each covering a respective portion of the communication area and each having a different respective beam identifier. The base station communicates control information, for a communication device (UE), using at least one directional beam associated with that communication device (e.g. a UE-specific operational beam set, OBS). Control information comprises beam specific reference signals transmitted via each beam. The base station is operable to receive from at least one UE results of OBS specific measurements (e.g. channel state indicator, CSI, measurements) for beams that are included in the OBS for that UE, and operable to control a handover for a particular communication device based on at least one of: the OBS associated with that UE and beam specific reference signals. The base station may comprise a massive antenna for ...

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07-11-2018 дата публикации

Improvements in and relating to channel state feedback in a telecommunication system

Номер: GB0002562098A
Автор: YINAN QI, Yinan Qi
Принадлежит:

Where a user equipment is required to transmit two or more channel state information (CSI) reports, one report is selected as the secondary report and compressed, then transmitted with the other, primary report to the base station as part of a comprehensive CSI report. The system finds particular use with coordinated multipoint (CoMP) transmission, especially with non-coherent joint transmission (NCJT), where the compression may be used to reduce the signaling overhead associated with multiple coordination possibilities. It may be used with Long Term Evolution (LTE) or New Radio (NR) systems. The compression may rely on exploiting correlations in the CSI feedback. Compression may be effected by transmitting the offset between the primary and secondary reports rather than the secondary report itself; the offset being a smaller value requiring fewer bits. It may alternatively use Slepian-Wolf (SWC) or Wyner-Ziv coding. A plurality of primary (uncompressed) or secondary (compressed) reports ...

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10-05-2017 дата публикации

Improvements in and relating to non-coherent joint defection in telecommunication systems

Номер: GB0201704669D0
Автор:
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26-12-2018 дата публикации

Communication network and method of maintaining connection

Номер: GB0201818292D0
Автор:
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21-06-2017 дата публикации

Phase tracking reference signal

Номер: GB0201707257D0
Автор:
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31-12-2014 дата публикации

Method and arrangement in a wireless communicationsystem

Номер: AP0201408107D0
Автор: HAMMARWALL DAVID
Принадлежит:

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31-05-2015 дата публикации

EPDCCH recource and quasi-co-location management in lte

Номер: AP2015008456A0
Принадлежит:

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31-12-2014 дата публикации

Method and arrangement in a wireless communicationsystem

Номер: AP2014008107A0
Автор: HAMMARWALL DAVID
Принадлежит:

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31-01-2017 дата публикации

A network node and a method therein for performing comp reception of a transmission from a wireless device

Номер: AP2017009673A0
Принадлежит:

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31-05-2015 дата публикации

EPDCCH recource and quasi-co-location management in lte

Номер: AP0201508456D0
Принадлежит:

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31-01-2017 дата публикации

A network node and a method therein for performing comp reception of a transmission from a wireless device

Номер: AP0201709673D0
Принадлежит:

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31-12-2014 дата публикации

Method and arrangement in a wireless communicationsystem

Номер: AP0201408107A0
Автор: HAMMARWALL DAVID
Принадлежит:

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31-01-2017 дата публикации

A network node and a method therein for performing comp reception of a transmission from a wireless device

Номер: AP0201709673A0
Принадлежит:

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31-05-2015 дата публикации

EPDCCH recource and quasi-co-location management in lte

Номер: AP0201508456A0
Принадлежит:

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31-01-2019 дата публикации

Declaring quasi co-location among multiple antenna ports

Номер: AU2017315312A1
Принадлежит: Madderns Patent & Trade Mark Attorneys

Antenna ports on wireless devices may be QCL. QCL antenna ports may be useful in improving channel statistics related to the antenna ports. UEs and base stations may be able to determine candidate QCL ports, transmit information identifying the candidate QCL ports, and receive feedback indicating whether the candidate QCL ports are QCL at the receiving device such as a UE or a base station.

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14-10-2021 дата публикации

Declaring quasi co-location among multiple antenna ports

Номер: AU2017315312B2
Принадлежит:

Antenna ports on wireless devices may be QCL. QCL antenna ports may be useful in improving channel statistics related to the antenna ports. UEs and base stations may be able to determine candidate QCL ports, transmit information identifying the candidate QCL ports, and receive feedback indicating whether the candidate QCL ports are QCL at the receiving device such as a UE or a base station.

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22-08-2019 дата публикации

Displaying content to users in a multiplayer venue

Номер: AU2018217434A1
Принадлежит: Davies Collison Cave Pty Ltd

A system for displaying content to a plurality of users in a multiplayer venue including: a plurality of wearable display systems, each display system being worn by a user, a content system that generates a plurality of content streams, each content stream being associated with a corresponding display system, a location system that detects a location of each display system within the venue, a transmission system including a number of transmission system antennas that wirelessly communicate with the display systems to transmit content to the wearable display systems and to receive data from the wearable display systems and a control system that determines the location of each display system within the venue from the location system and selectively controls transmitting antennas in accordance with the location of each display system to transmit each content stream to the corresponding display system or receive data from a corresponding display system.

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28-11-2019 дата публикации

SYSTEMS AND METHODS FOR RADIO FREQUENCY CALIBRATION EXPLOITING CHANNEL RECIPROCITY IN DISTRIBUTED INPUT DISTRIBUTED OUTPUT WIRELESS COMMUNICATIONS

Номер: AU2018201553B2
Принадлежит: Ellis Terry

Systems and methods are described for radio frequency (RF) calibration in a multiple antenna system (MAS) with multi-user (MU) transmissions ("MU-MAS") exploiting uplink/downlink channel reciprocity. The RF calibration is used to compute open-loop downlink precoder based on uplink channel estimates, thereby avoiding feedback overhead for channel state information as in closed-loop schemes. For example, a MU-MAS of one embodiment comprises a wireless cellular network with one or multiple beacon stations, multiple client devices and multiple distributed antennas operating cooperatively via precoding methods to eliminate inter-client interference and increase network capacity. < 00 < -D 4 :: C * I L I.O UI Подробнее

22-10-2020 дата публикации

Cluster-based beacon signal transmission

Номер: AU2018264101B2
Принадлежит: Griffith Hack

The embodiments disclose a method in an AP for broadcasting a beacon signal in a high frequency radio communication network. The method comprises joining an AP cluster in the high frequency radio communication network, the AP cluster contains two or more APs; and broadcasting a same beacon signal together with other APs in the AP cluster synchronously, the broadcasted same beacon signal contains an identification of the AP cluster. The embodiments also disclose a method in a communication device for deriving a beacon signal in a high frequency radio communication network. (Fig. 3) Joining an AP cluster in the high frequency radio 310 communication network, the AP cluster containing two or more APs Broadcasting a same beacon signal together with other APs in the AP cluster synchronously, the 320 broadcasted same beacon signal containing an identification of the AP cluster Fig. 3 c77 Fig. 4 ...

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18-04-2019 дата публикации

Digital transport of data over distributed antenna network

Номер: AU2019202190A1
Принадлежит: Spruson & Ferguson

DIGITAL TRANSPORT OF DATA OVER DISTRIBUTED ANTENNA A system for transporting data in a Distributed Antenna System (DAS) includes at least one Digital Access Unit (DAU) and a plurality of Digital Remote Units (DRUs) coupled to the at least one DAU. The plurality of DRUs are operable to transport signals between the plurality of DRUs and the at least one DAU. The at least one DAU includes: a data transport coder comprising: a framer, an encoder, a scrambler, and a serializer and a data transport decoder comprising: a deserializer, a decoder, a descrambler, a frame synchronizer, and a deframer.

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04-04-2019 дата публикации

SYSTEMS AND METHODS FOR EXPLOITING INTER-CELL MULTIPLEXING GAIN IN WIRELESS CELLULAR SYSTEMS VIA DISTRIBUTED INPUT DISTRIBUTED OUTPUT TECHNOLOGY

Номер: AU2019201712A1
Принадлежит: Ellis Terry

A multiple antenna system (MAS) with multiuser (MU) transmissions ("MU-MAS") exploiting inter-cell multiplexing gain via spatial processing to increase capacity in wireless communicationsnetworks. C) WI-j C) cycc H- LL rl H- C Co) cco ...

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05-09-2013 дата публикации

Communicating channel state information (CSI) of multiple transmission points

Номер: AU2012204223A8
Принадлежит:

Embodiments contemplate methods and systems for determining and communicating channel state information (CSI) for one or more transmission points (or CSI reference signal resources). Embodiments further contemplate determining transmission states may include applying at least one transmission state parameter to channel state information (CSI). Embodiments also contemplate reporting CSI based on the transmission state and/or at least one transmission state parameter applied thereto.

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19-02-2015 дата публикации

Method and apparatus for transmitting and receiving uplink data in mobile communication system

Номер: AU2011270023B2
Принадлежит:

A method for transmitting uplink data using multiple carriers by a User Equipment (UE) in a mobile communication system is provided. The method includes determining a first maximum-transmission power indicating a maximum transmission power for each carrier and a second maximum transmission power indicating a maximum transmission power for all carriers based on information for setting transmission power, received from an evolved NodeB (eNB), determining a minimum value from among a required transmission power and the first maximum transmission power as an uplink transmission power, for each carrier, scaling the determined uplink transmission powers so that a sum of the uplink transmission powers is less than or equal to the second maximum transmission power, and transmitting the uplink data based on the scaled uplink transmission powers.

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17-04-2014 дата публикации

Network-centric link adaptation for coordinated multipoint downlink transmission

Номер: AU2010258274B2
Принадлежит:

A Coordinated Multipoint (COMP) cell controller performs network-centric Sink adaptation for User Equipment (UE) in the CoMP cell. The CoMP cell controller receives at least infrequent channel estimates from a UE in the CoMP cell, from which it estimates downlink channel and thermal noise at the UE. The CoMP cell controller is aware of the desired signal to be received at the UE, and the intra-CoMP cell interference to the UE caused by transmissions to other UEs in the CoMP cell. The CoMP cell receives from the UE reports of inter-CoMP cell interference caused by transmissions by other CoMP cells. Based on the downlink channel quality, the desired signal, the intra-CoMP cell interference, the intex-CoMP cell interference, and the thermal noise, the CoMP cell controller performs link adaptation by selecting modulation and coding schemes, and other transmission parameters, for mi upcoming transmission duration (such as a TTI).

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06-04-2017 дата публикации

INTER-RAT COVERAGE DETERMINATION FOR ENERGY SAVING MANAGEMENT

Номер: AU2016200252B2
Автор: CHOU JOEY, Chou, Joey
Принадлежит: Fisher Adams Kelly Callinans

Abstract Embodiments of systems and techniques are described for determining inter radio access technology (inter-RAT) coverage for energy saving 5 management (ESM). In some embodiments, a network management (NM) apparatus may determine that a source cell of a network of a first RAT is triggered to activate an energy saving state and that the source cell is partially overlapped by each of a plurality of cells of one or more networks of one or more RATs different from the first RAT. The NM apparatus may 10 instruct the source cell to activate the energy saving state when a combination of the plurality of cells provides coverage of the source cell. Other embodiments may be described and claimed. 2527605v1 WO 2013/163478 PCT/US2013/038293 r'0c ...

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23-02-2017 дата публикации

Transmission scheme and quasi co-location assumption of antenna ports for PDSCH of transmission mode 10 for LTE advanced

Номер: AU2013338783B2
Принадлежит: Griffith Hack

Methods and apparatuses determine and indicate QCL behavior for or to a UE. A method for determining QCL behavior for the UE method includes, when configured in TM10 for a serving cell, determining whether a CRC for a PDSCH transmission scheduled by DCI format 1A is scrambled using a C-RNTI. The method also includes, in response to determining C-RNTI scrambling, determining whether a transmission scheme of the PDSCH transmission uses a non-MBSFN subframe configuration and whether the PDSCH transmission is transmitted on antenna port 0 or a TxD scheme is used. The method further includes, in response to determining the non-MBSFN subframe configuration and antenna port 0 or the TxD scheme being used, determining to use QCL behavior 1 for PDSCH reception. Additionally, the method includes, in response to determining a MBSFN subframe configuration and antenna port 7 being used, determining to use QCL behavior 2 for PDSCH reception.

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30-10-2014 дата публикации

Aperiodic and periodic CSI feedback modes for coordinated multi-point transmission

Номер: AU2013278127A1
Принадлежит:

Coordinate multi-point (CoMP) transmission is facilitated by resolving collisions between feedback reporting. Based upon the conditions within the network, collision resolution may be by dropping a channel report during a subframe, multiplexing channel reports from a plurality of user equipment, compressing channel reports from a plurality of user equipment, and combined reporting, either through joint reports or by using carrier aggregation, for conditions between a user equipment and a plurality of transmission points. New signaling and reporting formats facilitate selection of a collision resolution suitable for current network conditions.

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19-01-2017 дата публикации

ESTABLISHING APPLICATION-BASED ROUTING POLICIES IN MULTI-MODE USER EQUIPMENT

Номер: AU2016200331B2
Автор: GUPTA VIVEK, Gupta, Vivek
Принадлежит: Fisher Adams Kelly Callinans

Techniques for establishing and implementing application-based routing policies for multi-mode wireless communication devices such as a user equipment (UE) are generally described herein. In some examples, information particular to the profile and platform configuration of the UE is communicated to an Access Network Discovery Function (ANDSF) server. The ANDSF server may provide an inter system routing policy (ISRP) to handle appropriate network offloading actions for the particular application and device configuration. In some examples, the ISRP may be specific to flow-based or non-seamless based traffic offloading from certain software applications. The techniques described herein may be propagated from the ANDSF server and implemented in a variety of multi-mode UE mobile computing devices in connection with offloading policies established in a 3GPP Long Term Evolution/Long Term Evolution-Advanced (LTE/LTE-A) Evolved Packet Core (EPC) network architecture. WO 2014/021989 PCT/US2013/044530 ...

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13-04-2017 дата публикации

Method and apparatus for transmitting and receiving signal in Distributed Antenna System

Номер: AU2012316918B2
Принадлежит: Griffith Hack

An apparatus and method for transmitting and receiving a signal in a Distributed Antenna System (DAS) is provided. A method for determining an initial state in a DAS includes receiving a value through high-level signalling and determining an initial state based on the value, in which the value includes a value in which is set an initial state of a scrambling sequence, which differs according to a transmission point.

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22-12-2016 дата публикации

A network node and a method therein for performing comp reception of a transmission from a wireless device

Номер: AU2014400692A1
Принадлежит: Watermark Intellectual Property Pty Ltd

A network node and a method therein for CoMP reception of a transmission from a wireless device are provided. The method comprises determining (110) an available backhaul capacity of a reception point of the serving RBS and of at least one potential reception point of respective further RBS(s); and determining (120) a received signal quality of a received signal, transmitted from the wireless device, received by the reception point of the serving RBS and received by the at least one potential reception point of the respective further RBS(s). The method comprises determining (130) cooperating reception point(s), to be included in the CoMP reception of the transmission from the wireless device and determining a TBS for the transmission from the wireless device based on the determined available backhaul capacity and received signal quality; and notifying (140) the respective RBS(s) of the determined cooperation reception point(s) about their participation in the CoMP reception.

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04-01-2018 дата публикации

Systems and methods to coordinate transmissions in distributed wireless systems via user clustering

Номер: AU2017272221A1
Принадлежит: FPA Patent Attorneys Pty Ltd

Systems and methods are described for coordinating transmissions in distributed wireless systems via user clustering. For example, a method according to one embodiment of the invention comprises: measuring link quality between a target user and a plurality of distributed-input distributed output (DIDO) distributed antennas of base transceiver stations (BTSs); using the link quality measurements to define a user cluster; measuring channel state information (CSI) between each user and each DIDO antenna within a defined user cluster; and precoding data transmissions between each DIDO antenna and each user within the user cluster based on the measured CSI.

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14-07-2015 дата публикации

SYSTEM AND APPARATUS FOR INTERFERENCE SUPPRESSION USING MACRODIVERSITY IN MOBILE WIRELESS NETWORKS

Номер: CA0002690306C

In a wireless network, plural downlink signals from plural base stations (210-1, 210-2, 210-3) are transmitted to a terminal (240). The plural downlink signals all carry the same information to the terminal (240). The terminal (240) provides feedback on the downlink channels. The feedback provides information on the taps of the channels. The amount of information fed back is constrained. Based on the feed-back, transmission parameters of the downlink signals are adjusted. The process of transmitting, providing feedback, and adjusting the parameters continue so that the energy of the downlink signal is enhanced at the terminal location and suppressed elsewhere. Beam forming can be used to further suppress the energy signature at locations other than the terminal location.

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14-04-2011 дата публикации

REDUCED-COMPLEXITY COORDINATED MULTIPOINT RECEPTION

Номер: CA0002773517A1
Принадлежит:

Teachings herein offer reduced-complexity coordinated multipoint (CoMP) reception of an uplink signal transmitted by a mobile terminal. The teachings obtain, for each sector antenna in a set of sector antennas deployed in a CoMP cell, a signal strength measurement of one or more downlink signals received by the mobile terminal from a sector associated with that sector antenna. The teachings compare the signal strength measurements and then select from the set, based on that comparison, a subset of sector antennas, for CoMP reception of the uplink signal B) using a subset of sector antennas for CoMP reception, instead of all sector antennas in the set, the teachings i educe the computational complexity of CoMP reception Moreover, the teachings in some embodiments minimize any performance degradation possibly resulting from performing CoMP reception with a reduced number of antennas, by selecting the subset to include sector antennas having the strongest signal strength measurements.

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18-03-2010 дата публикации

METHODS AND DEVICES FOR SPATIAL CODING

Номер: CA0002736713A1
Принадлежит:

Embodiments of the invention relates to a method in a controller node for distributing code text of a joint spatial coding in a communications network. The communications network comprises at least two communication nodes each comprising at least one transmit antenna. The method comprises to joint spatial code (T2, S11) a symbol resulting in at least a first code text and a second code text. Then, the method comprises to group (T4, S12) the transmit antennas in the communications network into at least a first transmit antenna group and a second transmit antenna group based on the location of coverage area of the transmit antennas. Finally, the method comprises to distribute (T6) the first code text to the first transmit antenna group and the second code text to the second transmit antenna group. The invention is particularly useful for transmission in Multimedia Broadcast Single Frequency Network (MBSFN) comprising of communication nodes equipped with unequal number of transmit antennas ...

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13-08-2020 дата публикации

HYBRID BASE STATION AND RRH

Номер: CA3137867A1
Принадлежит:

Systems, methods and computer software are disclosed for providing base station and Remote Radio Head (RRH) functionality. In one embodiment, a method is disclosed, the method for providing base station and Remote Radio Head (RRH) functionality in a base station, comprising: providing a baseband card; providing a radio head, the radio head coupled to the baseband card by way of an interface; and switching, under the control of a processor, between use of the baseband card and use of an external baseband unit for controlling the radio head, the external baseband unit used via a Common Public Radio Interface (CPRI) port, thereby providing dual base station and remote radio head functionality.

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23-02-2012 дата публикации

Communication apparatus, base station and coordinated multipoint communication method

Номер: US20120044978A1
Принадлежит: Fujitsu Ltd

The communication apparatus includes: a channel estimating unit for acquiring a channel estimation value of a channel between the communication apparatus and a cell base station of a cell in which the communication apparatus is located; a transmitter transmitting the channel estimation value or information based on the channel estimation value to the cell base station; a receiver receiving coordinated multipoint (CoMP) message from the cell base station, the CoMP message indicates the CoMP transmission mode, the codebook or precoding matrix used by the cell base station, and the codebook or precoding matrix used by a coordinated base station that coordinates with the cell base station; a channel matrix forming unit for acquiring a channel matrix according to the CoMP message; and a decoder decoding received signals according to the channel matrix and the CoMP message.

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01-03-2012 дата публикации

Precoding with reduced feedback for coordinated multipoint transmission on the downlink

Номер: US20120051450A1
Автор: Kambiz Zangi
Принадлежит: Individual

Techniques for reducing the number of bits needed to specify the best precoding vector for each mobile station in a wireless communication network that employs multi-point transmission are disclosed. An exemplary method begins with the estimation of path loss between a mobile station and each of a plurality of geographically separated transmitter sites, each transmitter site having at least one transmitter antenna. Based on the estimated path losses, one of a plurality of pre-determined subsets (codebooks) of a pre-determined set of antenna precoding vectors is selected. A group index identifying the selected subset is then transmitted to the mobile station. Subsequently, a vector index is received from the mobile station, the vector index corresponding to a precoding vector in the selected subset, and data is transmitted to the mobile station, using the precoding vector applied to the transmitter antennas at the plurality of transmitter sites.

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15-03-2012 дата публикации

Methods and apparatus for best-effort radio backhaul among cells on unlicensed or shared spectrum

Номер: US20120063383A1
Принадлежит: Qualcomm Inc

Methods and apparatus for wireless communication are described. A first base station may provide first backhaul information using a shared channel to a second base station. The shared channel may be white space channels, Authorized Shared Multiuser (ASM) channels or an Instrumentation, Scientific, and Measurement (ISM) channels. The first base station may further provide second backhaul information using a legacy backhaul channel.

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05-04-2012 дата публикации

Cooperative communication method and base station

Номер: US20120082118A1
Автор: Yi Long, Yunbo Li
Принадлежит: Huawei Technologies Co Ltd

A cooperative communications method for a wireless network and a corresponding apparatus. In one embodiment, the method includes: obtaining a matrix corresponding to a destination Mobile Station (MS), where the number of rows of the matrix depends on the total number of antennas of MSs in a cooperative area and the number of antennas of the destination MS, and the number of columns of the matrix depends on the number of code streams sent to the destination MS; calculating a precoding matrix according to local Channel State Information (CSI) and the matrix; performing precoding according to the precoding matrix; and performing cooperative communication according to a result of the precoding. The method of this embodiment enables the reduction or elimination of interference between users by specifying a direction matrix, and is applicable to multi-antenna MSs. A cooperative base station (BS) applicable to the foregoing method is also disclosed.

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12-04-2012 дата публикации

Multi-cell cooperative communication system and terminal device

Номер: US20120087423A1

Disclosed is a data transmission system that transmits data by using relay. The relay may select a transmission terminal from among a plurality of terminals accessing a base station. The base station may transmit base station data to the relay during a first time slot, the transmission terminal may transmit terminal data to the relay. The relay may transmit the terminal data to the base station and may transmit the base station data to the transmission terminal during a second time slot.

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26-04-2012 дата публикации

Enhanced Inter-Network Access Node Scheduling Coordination And Signaling Support For Advanced Receiver Algorithms

Номер: US20120099544A1
Принадлежит: Nokia Oyj, NOKIA SIEMENS NETWORKS OY

A method includes operating a network access node to determine, in cooperation with at least one other network access node, a coordinated scheduling granularity having a plurality of physical resource blocks; and signaling an indication of the determined coordinated scheduling granularity to at least one mobile device served by the network access node for use in enhancing estimation at a receiver of the mobile device, such as when estimating an interference covariance matrix. Apparatus for performing the method is also disclosed, as are mobile device methods and apparatus for receiving and using the signaling.

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17-05-2012 дата публикации

Apparatus and method for allocating resources to nodes in a communication system using an update of iteration resource weights

Номер: US20120122505A1
Принадлежит: NTT DOCOMO INC

An apparatus for allocating resources to nodes in a communication system comprises an iteration controller ( 10 ) for performing an iterative processing, the iteration controller being configured for using ( 11 ) iteration resource weights to obtain a resources allocation result for an iteration step, and for updating ( 12 ) the iteration resource weights to obtain updated iteration resource weights for a further iteration step using a weighted combination of the resources allocation results for the iteration step and for at least one earlier iteration step.

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24-05-2012 дата публикации

Radio base station apparatus, mobile terminal apparatus and transmission power control method

Номер: US20120127911A1
Принадлежит: NTT DOCOMO INC

To provide a radio base station apparatus, mobile terminal apparatus and transmission power control method for enabling conventional inter-cell interference reduction techniques and ULCoMP to be used together, a radio base station apparatus of the invention is characterized by having a ULCoMP processing section ( 2085 ) that applies ULCoMP to a mobile terminal ( 100 1 ) when a difference (PL 2 −PL 1 ) between a pass loss PL 1 between the mobile terminal ( 100 1 ) and a base station apparatus ( 200 1 ) connected to the mobile terminal ( 100 1 ) and a pass loss PL 2 between the mobile terminal ( 100 1 ) and a base station apparatus ( 200 2 ) with the lowest pass loss for the mobile terminal ( 100 1 ) is within a predetermined range, and a transmission power control section ( 2089 ) that performs transmission power control for application of ULCoMP when the ULCoMP is applied, while performing transmission power control for non-application of the ULCoMP when the ULCoMP is not applied.

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12-07-2012 дата публикации

Method and apparatus for supporting high-speed mobile terminals in a distributed antenna system

Номер: US20120178468A1
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A method and apparatus for supporting a high-speed mobile terminal in a distributed antenna system. The method includes acquiring information on a position and a speed of each terminal of a plurality of terminals, mapping the plurality of terminals to at least one or more terminal groups based on at least one or more of the position or the speed of the terminal, determining a service end time point at a serving antenna node and a service start time point at a target antenna node, using position and speed information associated with the terminal group, and switching an antenna node for the terminal group, according to the service end time point at the serving antenna node and the service start time point at the target antenna node.

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19-07-2012 дата публикации

Reduced Bandwidth Backhaul for Coordinated Multi-Point Reception

Номер: US20120184218A1
Принадлежит: Telefonaktiebolaget LM Ericsson AB

Embodiments herein provide reduced backhaul bandwidth requirements for Coordinated Multi-Point reception of an uplink signal. A cooperating base station receive and demodulates the uplink signal to produce soft output values that each indicate the value of a corresponding information symbol in the uplink signal and the level of certainty in that symbol value. The cooperating base station then selectively sends particular ones of the soft output values to a serving base station over a backhaul communication link based on whether or not the level of certainty indicated by each soft output value exceeds a certainty threshold. The serving base station likewise receives and demodulates the uplink signal to produce its own soft output values. The serving base station then combines respective ones of the soft output values it received from the cooperating base station and the soft output values it produced itself that are associated with the same information symbol.

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26-07-2012 дата публикации

Efficient uplink transmission of channel state information

Номер: US20120188972A1
Принадлежит: Individual

A UE in a wireless communication network transmits succinct, direct channel state information to the network, enabling coordinated multipoint calculations such as joint processing, without substantially increasing uplink overhead. The UE receives and processes reference symbols over a set of non-uniformly spaced sub-carriers, selected according to a scheme synchronized to the network. The frequency response for each selected sub-carrier is estimated conventionally, and the results quantized and transmitted to the network on an uplink control channel. The non-uniform sub-carrier selection may be synchronized to the network in a variety of ways.

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02-08-2012 дата публикации

Joint uplink data processing by plural base stations

Номер: US20120195284A1
Принадлежит: Nortel Networks Ltd

Joint uplink processing by plural base stations includes sending, by a serving base station, a request for uplink resources of a second base station for receiving uplink data of a mobile station. The serving base station receives first uplink data from the mobile station, and the serving base station further receives (from the second base station) second uplink data of the mobile station received by the second base station using the uplink resources specified by the request.

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09-08-2012 дата публикации

System and Method for Transparent Coordinated Beam-Forming

Номер: US20120202431A1
Принадлежит: FutureWei Technologies Inc

A method for reducing interference at a first user equipment (UE) includes receiving, by a second communications controller, a request to reduce interference at the first UE, the first UE being served by a first communications controller. The method also includes determining, by the second communications controller, a beam adjustment in accordance with uplink transmission measurements of the first UE and a second UE, the beam adjustment to aim a transmission to the second UE away from the second UE and towards an angle orthogonal to a first direction of the first UE relative to the second communications controller, the second UE being served by the second communications controller. The method further includes pre-adjusting, by the second communications controller, the transmission with the beam adjustment, and transmitting, by the second communications controller, the pre-adjusted transmission to the second UE.

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16-08-2012 дата публикации

Method and apparatus for downlink transmission based on mimo precoding in wireless communication system employing distributed antenna systems

Номер: US20120207145A1

A transmission method and apparatus utilizing Multiple-Input and Multiple-Output (MIMO) precoding based on Distributed Antenna Systems (DASs) are provided. The transmission method includes determining active antenna ports, for a User Equipment (UE) having multiple receive antennas, from among a plurality of Distributed Antenna Ports (DAPs) evenly placed in a service area; assigning a Multiple-Input and Multiple-Output (MIMO) mode to the UE and notifying the UE of the MIMO mode assignment; determining a signal precoding vector on a basis of feedback information for the MIMO mode received from the UE; and precoding a signal using the signal precoding vector and transmitting the precoded signal through the active antenna ports.

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23-08-2012 дата публикации

Radio resource monitoring (rrm) and radio link monitoring (rlm) procedures for remote radio head (rrh) deployments

Номер: US20120213108A1
Принадлежит: Qualcomm Inc

Wireless networks may include remote radio heads (RRHs) for extending the coverage of a macro cell. The macro cell may be connected to the RRHs, for example, by optical fiber, and there may be negligible latency between the macro cell and the RRHs. RRH deployment with different cell specific RS transmissions may create many cell edges, which may present challenges in idle state mobility. Certain aspects of the present disclosure may utilize coordinated multipoint (CoMP) transmissions for idle user equipment (UE) support and, in some aspects, may introduce new radio link monitoring (RLM) techniques. As a result, the techniques presented herein may help achieve better idle mode performance and/or better RLM performance.

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30-08-2012 дата публикации

Method for transmitting channel quality information, and apparatus for same

Номер: US20120218968A1
Принадлежит: LG ELECTRONICS INC

The present invention relates to a wireless communication system. In particular, the present invention relates to a method and apparatus for transmitting channel quality information using a terminal, wherein the method comprises the steps of: receiving CoMP configuration information from a serving transmission point; receiving a downlink signal from a plurality of transmission points; and transmitting channel quality information on one or more downlink sub-bands for each transmission point to the serving transmission point, wherein the plurality of transmission points select the same one or more downlink sub-bands in consideration of the CoMP configuration information.

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27-09-2012 дата публикации

Carrier-phase difference detection and tracking in multipoint broadcast channels

Номер: US20120243424A1
Автор: Xiao-an Wang
Принадлежит: Individual

Methods and apparatus are described that provide carrier-phase difference (CPD) acquisition via signaling protocols between communicating devices. The random CPD between two disjoint devices can be measured by the signaling protocols described herein. With the availability of the CPD, a device is also able to acquire its outgoing channel (transmit channel) information, thus avoiding the channel information feedback that is being considered and/or practiced in some wireless communications systems. Also described are methods and apparatus that use the CPD to synchronize the clocks of two or more devices and that track the time-variations of the CPD for reliable CPD measurement and tracking loop operations. Applications of the described methods and apparatus include wireless multipoint broadcast systems, also known as coordinated multipoint transmission, or CoMP, in LTE (long-term evolution)-advanced systems, point-to-point wireless MIMO systems, and general wireless device networks.

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11-10-2012 дата публикации

Method for transceiving signal in mobile station in multiple antenna wireless communication system and apparatus therefor

Номер: US20120258716A1
Принадлежит: LG ELECTRONICS INC

A mobile station provided with multiple antennas in a wireless communication system is disclosed. More specifically, the mobile station displays an overlap zone entry notification message received from a macro base station if the mobile station enters an overlap zone between the macro base station and a femto base station, and an user selects an antenna driving mode of the multiple antennas. And then, the mobile station transmit and receive signals to and from at least one of the macro base station and the femto base station in accordance with the selected antenna driving mode.

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25-10-2012 дата публикации

Downlink multiple input multiple output enhancements for single-cell with remote radio heads

Номер: US20120269278A1
Принадлежит: Texas Instruments Inc

A base station selects a subset of at least one geographically separated antennas for each of the plurality of user equipments. The base station forms at least layer of data stream including modulated symbols, precodes the data stream via multiplication with the NT-by-N precoding matrix where N is the number of said layers and NT is the number of transmit antenna elements and transmits the precoded layers of data stream to the user equipment via the selected geographically separated antennas. The base station signals the subset of the plurality of geographically separated antennas via higher layer Radio Resource Control or via a down link grant mechanism. The base station optionally does not signal the subset of the plurality of geographically separated antennas to the corresponding mobile user equipment.

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08-11-2012 дата публикации

Methods and arrangements in a wireless communication system

Номер: US20120282934A1
Принадлежит: Telefonaktiebolaget LM Ericsson AB

Method and arrangement ( 600 ) in a first network node ( 120 - 1 ), serving a first cell ( 130 - 1 ), for forming a coordination group for coordinating multipoint wireless communication. The method comprising determining ( 502 ) interference within the first cell ( 130 - 1 ). Also, the method comprises identifying ( 503 ) a second network node ( 120 - 2 ), which is either transmitting radio signals causing the interference, serving a user equipment ( 110 - 1 ), which transmits radio signals causing the interference, or being the intended recipient of radio signals causing the interference. Additionally, the method comprises transmitting ( 504 ) a token to the identified second network node ( 120 - 2 ), inviting it to coordinate the wireless communication. Furthermore, in addition, if acceptance is received, the method comprises forming ( 505 ) a coordination group together with the second network node ( 120 - 2 ), and coordinate the wireless communication. Further, a method and arrangement ( 800 ) in a second network node ( 120 - 2 ) is presented.

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06-12-2012 дата публикации

Method and user terminal for multi-site multi-user joint transmission

Номер: US20120307672A1
Автор: Dong Li, HAO LIU, Yang Song
Принадлежит: Individual

The present invention proposes a method for multi-site multi-user joint transmission, the method comprising: measuring, by a user terminal, a downlink channel originated from each base station; according to the measurement for the downlink channel, quantizing and obtaining, by the user terminal, per-site channel information for the each base station and additional inter-site channel information, the additional inter-site channel information being used for calculating joint channel information of multiple base stations; and feeding back, by the user terminal, the per-site channel information for the each base station and the additional inter-site channel information so that the base station performs scheduling to execute the multi-site multi-user joint transmission.

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06-12-2012 дата публикации

Methods And Apparatus For Determining Participants In Coordinated Multi-Point Transmission

Номер: US20120307704A1
Принадлежит: Renesas Mobile Corp

Systems and techniques for communication using coordinated multi-point transmission. In one embodiment, an apparatus comprises at least one processor and a memory storing a set of computer instructions. The processor is configured to cause the apparatus to receive information relating to a propagation delay variation between at least a first transmission and a second transmission received at a user equipment. The first transmission is received from a first transmission point and the second transmission is received from a second transmission. The information relating to the propagation delay variation is evaluated and, based on the result of the evaluation, a determination is made as to whether the second transmission point is acceptable as a participant in a cooperative multi-point joint processing transmission to the user equipment.

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13-12-2012 дата публикации

Base station, communication system and communication method

Номер: US20120315891A1
Автор: Hiroaki Takano
Принадлежит: Sony Corp

Provided is a base station including a plurality of branches that perform CoMP transmission with another base station, a multiplying unit that multiplies a transmission signal from each of the plurality of branches by a calibration coefficient of each of the plurality of branches, wherein the calibration coefficient is a coefficient obtained by adjusting an individual calibration coefficient acquired by branch calibration between the plurality of branches in the base station based on a branch calibration result between a branch of the base station and a branch of the other base station.

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20-12-2012 дата публикации

Wireless communications methods and apparatus

Номер: US20120322362A1
Автор: Justin Coon
Принадлежит: Toshiba Corp

A method of relaying a signal in a wireless communications network comprising a plurality of wireless devices, the method being performed by at least one of said wireless devices to relay a signal in a communication path between one of said plurality of wireless devices and another one of said wireless devices, the method comprising receiving a signal from said one of said plurality of wireless devices, determining channel statistical information relating to a part or the whole of said wireless communications network, selecting a mode of relaying said signal from a plurality of predetermined relay modes based on said determined channel statistical information, such that the outage probability for said communication path satisfy a predetermined condition, and transmitting said signal to said another one of said plurality of wireless devices using said selected mode.

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27-12-2012 дата публикации

Method and apparatus for measuring downlink interference in ofdm mobile communication system

Номер: US20120327800A1
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A method and apparatus for efficiently measuring downlink interference in a Distributed Antenna System (DAS)-based Long Term Evolution Advanced (LTE-A) system with a plurality antennas distributed within the service area of each evolved Node B (eNB), through the use of a Channel Status Information Reference Signal (CSI-RS) method and a muting method, is provided.

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27-12-2012 дата публикации

Apparatus and method for controlling inter-cell interference

Номер: US20120329498A1
Принадлежит: LG ELECTRONICS INC

An apparatus and method for controlling inter-cell interference is disclosed. The user equipment for controlling inter-cell interference in a wireless communication system includes an interference level measuring module configured to measure interference levels of neighboring cells using at least one of information about the number of antennas among antennas deployed in the neighboring cells, information about indexes of the effective antennas, and information about reference signal of the neighboring cells, an interference restriction request determination module configured to compare the interference levels of the neighboring cells with a predetermined threshold and to determine whether or not UE requests an interference restriction to the neighboring cells, and a transmitter configured to transmit information about one or more neighboring cells, to which the interference restriction request will be transmitted, to a serving base station.

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03-01-2013 дата публикации

Communicating channel state information (csi) of multiple transmission points

Номер: US20130003788A1
Принадлежит: InterDigital Patent Holdings Inc

Embodiments contemplate methods and systems for determining and communicating channel state information (CSI) for one or more transmission points (or CSI reference signal resources). Embodiments further contemplate determining transmission states may include applying at least one transmission state parameter to channel state information (CSI). Embodiments also contemplate reporting CSI based on the transmission state and/or at least one transmission state parameter applied thereto.

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17-01-2013 дата публикации

Multi-site mimo cooperation in cellular network

Номер: US20130016662A1
Принадлежит: Individual

In a cellular communications network comprising a plurality of transmitting sites wherein each transmitting site comprises at least one antenna, a method of serving a given data stream to a target-mobile terminal, comprising: designating at least two of the plurality of transmitting sites as cooperating sites; assigning tones to each transmitting site from a sub-band associated with the cooperating sites; dividing the data stream into at least two sub-data streams, each of the sub-data streams for transmission over selected tones; and interlacing tones of the cooperating sites in accordance with a selected one of a time switching and a frequency switching transmit diversity technique.

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24-01-2013 дата публикации

Data transmission method and system

Номер: US20130023276A1
Принадлежит: Huawei Technologies Co Ltd

The present invention provides a data transmission method and system, where the method is used in a system architecture adopting a virtual heterogeneous network, where a macro base station covering a macro-cell and a pico base station covering a pico-cell share the same station address. The method includes the following step: sending control information and data information to user terminals in the macro-cell and the pico-cell according to location information of the user terminals so that the user terminals obtain the data information according to the control information. The system includes a sending module. The present invention implements joint scheduling of resources between a macro base station and a pico base station, reduces interference between cells, and maximally improves an overall data rate.

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14-02-2013 дата публикации

Methods of Point Association for Cooperative Multiple Point Transission

Номер: US20130039199A1
Принадлежит: MediaTek Inc

Procedures for point association as well as measurement and feedback required to enable point association for CoMP deployment scenario 4 are proposed. In a first novel aspect, a serving eNB configures a first higher-layer configuration for RSRP measurement to be used by a UE for serving point selection. The higher-layer configuration contains multiple CSI-RS configurations, and each CSI-RS configuration indicates a set of resource elements (REs) or subcarriers in both frequency domain and time domain as one CSI-RS resource with non-zero transmission power. The UE then performs RSRP measurements based on the multiple CSI-RS configurations and reports RSRP measurement results to the serving eNB. In a second novel aspect, the serving eNB configures a second higher-layer configuration for CSI reporting based on the reported RSRP measurement results. In a third novel aspect, the serving eNB sends CSI-RS information to the UE for uplink power control.

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14-02-2013 дата публикации

Reference signal for a coordinated multi-point network implementation

Номер: US20130039203A1
Принадлежит: Individual

A system and method of receiving a channel state information reference signal (CSI-RS) is presented. At a user equipment, a first CSI-RS transmitted from a base station is received. In some implementations, the first CSI-RS is transmitted at a first periodicity using a first set of antenna ports. At the user equipment, a second CSI-RS transmitted from the base station is received. In some implementations, the second CSI-RS is transmitted at a second periodicity using a second set of antenna ports. At least one of the first CSI-RS and the second CSI-RS is used to perform channel measurement.

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14-02-2013 дата публикации

Symbol vector-level combining receiver for incremental redundancy harq with mimo

Номер: US20130039447A1
Принадлежит: Hui-Ling Lou, Jungwon Lee, Yakun Sun

Techniques are provided for transmitting and receiving a mother code in an incremental redundancy hybrid automatic repeat-request protocol. Each bit position of the mother code may be mapped to an output symbol, and each output symbol may be mapped to an antenna for transmission. One or more transmissions of symbols contained in the output symbols may be performed, where each transmission may include puncturing the mother code by selecting one or more symbols from the of output symbols, and transmitting each symbol in the one or more symbols on an antenna corresponding to that symbol. The mother code may be decoded, in part, by determining combinable bits contained within a set of received symbols, and computing one or more log-likelihood ratio values corresponding to each symbol in the set of received symbols.

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21-02-2013 дата публикации

Cell selection for multi-cell mimo transmission

Номер: US20130044602A1
Автор: Hui Xiao, Luciano Sarperi
Принадлежит: Fujitsu Ltd

A method for use in selecting a cell or cells, from amongst a set of cells in a cellular wireless network, for coordinated use in multi-cell multiple-input/multiple-output (MIMO) transmission so as to reduce feedback overhead, each cell of the said set having at least one MIMO channel characteristic which may vary with time at a measurable rate, comprises a cell selection process comprising the steps of: identifying a cell or subset of cells of the said set for which the time variation rate/rates of the said MIMO channel characteristic is/are the slowest of those of the cells in the said set; and selecting a cell or cells for use in multi-cell MIMO transmission from only the cell or subset of cells identified in the identifying step.

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21-02-2013 дата публикации

Controlling signal transmission in radio units

Номер: US20130044622A1
Принадлежит: KT Corp

Described embodiments provide controlling signal transmission in a plurality of radio units. The plurality of radio units may be coupled to a digital unit. The digital unit may be spatially separated from the plurality of radio units. Signal quality measurements may be received from multiple radio units when a user equipment is located within an overlapping service area of the multiple radio units. Determination may be made as to whether to simultaneously use at least two of the multiple radio units to transmit a data signal to the user equipment based on the received signal quality measurements. At least two of the multiple radio units may be controlled to transmit a same data signal to the user equipment using a same channel based on the determination result.

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28-02-2013 дата публикации

Backhaul enhancements for cooperative multi-point (comp) operations

Номер: US20130053078A1
Принадлежит: Qualcomm Inc

Certain aspects of the present disclosure relate to techniques for backhaul enhancements for cooperative multi-point (CoMP) operations. An aggressor node may take pre-scheduling decisions in advance of beamformed data transmissions based on the pre-scheduling decisions. The aggressor node may communicate the pre-scheduling decisions to one or more victim nodes, for example, via a backhaul link between the aggressor node and the one or more victim nodes. A victim node may take scheduling decisions based at least on the pre-scheduling decisions of the aggressor node to coordinate beamformed transmissions from the victim node with the beamformed transmissions from the aggressor node.

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11-04-2013 дата публикации

PRECODING TECHNIQUES FOR DOWNLINK COORDINATED MULTIPOINT TRANSMISSION IN RADIO COMMUNICATIONS SYSTEM

Номер: US20130089159A1
Автор: Liu Le
Принадлежит: NEC Corporation

A precoding vector of coordinated multipoint transmission (CoMP) for at least one user equipment is decided by receiving the channel state information for CoMP from the user equipment, wherein the channel state information includes inter-cell correlation property between a serving cell serving the user equipment and a cooperating cell for CoMP; and deciding the precoding vector of CoMP based on the channel state information. 1. A method for deciding a precoding vector of coordinated multi-point transmission (CoMP) for at least one user equipment in a network , comprising:receiving channel state information for CoMP from the user equipment, wherein the channel state information includes inter-cell correlation property between a serving cell serving the user equipment and a cooperating cell for CoMP; anddeciding the precoding vector of CoMP based on the channel state information.2. The method according to claim 1 , wherein the channel state information further includes first auto-correlation channel property between the serving cell and the user equipment.3. The method according to claim 2 , wherein the network estimates second auto-correlation channel property between the cooperating cell and the user equipment by using the first auto-correlation channel property and the inter-cell correlation property.4. The method according to claim 2 , wherein the channel state information further includes second auto-correlation channel property between the cooperating cell and the user equipment.5. The method according to claim 1 , wherein the inter-cell correlation property is represented by a cross-correlation channel matrix which is obtained by correlation between a first transmit channel matrix from the serving cell to the user equipment and a second transmit channel matrix from the cooperating cell to the user equipment.6. The method according to claim 5 , wherein a precoding matrix index (PMI) for the serving cell and the cooperating cell is selected by the user equipment ...

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09-05-2013 дата публикации

Devices and Methods Related to Improvements in Coordinated Multipoint Transmission Arrangements

Номер: US20130114428A1
Принадлежит: Renesas Mobile Corp

For coordinated multipoint transmission arrangements there is provided a device, including a controller module, configured to control a plurality of transmission points, each constituted by a set of at least one transmit antenna, to transmit data to another device in a coordinated transmission from at least a subset of the plurality of transmission points, wherein each subset with resources allocated thereto defines a respective coordinated transmission scheme, wherein the controller module is configured to transmit information on resources pertaining to multiple coordinated transmission schemes, and send at least one biasing parameter associated to at least one of the transmission schemes, to be applied for biasing a channel quality parameter. Another device includes a controller module, configured to report feedback responsive to such coordinated transmission, and the controller module is, among others, configured to apply the at least one biasing parameter to derived channel quality parameters.

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09-05-2013 дата публикации

Beamforming coordination in heterogeneous networks

Номер: US20130115985A1
Принадлежит: Intel Corp

Technology for spatial domain beamforming coordination at a low power node (LPN) in a heterogeneous network (HetNet) is disclosed. One method can include the LPN collecting spatial feedback information of macro node interference from a plurality of wireless devices in a LPN cell. The LPN can compile the spatial feedback information into a spatial feedback report. The LPN can send the spatial feedback report from the LPN to a macro node for calculating a beamforming vector to reduce the macro node interference for the plurality of wireless devices in the LPN cell.

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23-05-2013 дата публикации

Method and device whereby base station allocates nodes to terminal in a semi-static fashion in multi-node system

Номер: US20130128761A1
Принадлежит: LG ELECTRONICS INC

The present invention relates to wireless communication, and more specifically, to a method and device whereby a base station allocates nodes to a terminal in a semi-static fashion in a multi-node system. The method, according to one aspect of the present invention, whereby a base station allocates at least a portion of a plurality of nodes to a terminal in a multi-node system comprising the plurality of nodes and the base station for controlling the plurality of nodes, comprises the steps of: receiving, from the terminal, data showing at least one first node that is preferred among the plurality of nodes by the terminal; and transmitting, to the terminal, first data for allocating the first node(s) to the terminal. The first data may comprise pilot data which is required by the terminal in order to transmit, to the base station, feedback data concerning the first node.

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06-06-2013 дата публикации

Method for Communicating with a User Equipment Using Plurality of Transmit Antennas

Номер: US20130142148A1
Принадлежит: Huawei Technologies Co Ltd

The invention relates to a method for communicating with a user equipment using a plurality of transmit antennas being capable of generating transmission beams in a communication network. The method includes deciding whether to generate either a first transmission beam using a first beamforming approach or to generate a second transmission beam using a second beamforming approach in dependency on a network condition. Based upon a result of the deciding, the first transmission beam or the second transmission beam is transmitted towards the user equipment.

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13-06-2013 дата публикации

Component carrier uplink maximum transmission power reporting scheme for carrier aggregation

Номер: US20130148560A1
Принадлежит: Individual

Embodiments of the present disclosure describe method, apparatus, and system configurations for reporting uplink maximum transmission power for each component carrier of a carrier aggregation scheme. A method includes establishing, by a user equipment (UE), a communication link with an enhanced node B (eNB) station of an Internet Protocol (IP) based wireless communication network, and sending, by the UE to the eNB station, a message that includes information for a Power Headroom Report (PHR) and a value that indicates an uplink maximum transmission power P CMAX,c for individual active component carriers of a carrier aggregation scheme. Other embodiments may be described and/or claimed.

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20-06-2013 дата публикации

System and Method of Radio Bearer Management for Multiple Point Transmission

Номер: US20130155903A1
Автор: Hao Bi, Yishen Sun
Принадлежит: FutureWei Technologies Inc

A method for operating a multiple point transmission system is disclosed. The method includes reconfiguring the multiple point transmission system according to an updated configuration of an at least one radio bearer between an at least one transmission point and a terminal device, and communicating with the terminal device using the reconfigured multiple point transmission system. The configuration of the at least one radio bearer is updated according to operating condition information of the terminal device.

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20-06-2013 дата публикации

Enhanced demodulation reference signal (dm-rs) design

Номер: US20130155921A1
Принадлежит: MARVELL WORLD TRADE LTD

A method in a mobile communication terminal includes receiving a Multi-User Multiple-Input Multiple-Output (MU-MIMO) signal, which includes at least a precoded transmission that is addressed to the terminal and which includes one or more Demodulation Reference Signals (DM-RS). Control information, which indicates one or more scrambling sequences and one or more orthogonalization sequences used in producing the DM-RS, is received in the mobile communication terminal. The control information is provided in a format that does not permit signaling of every possible scrambling sequence and orthogonalization sequence selection. The control information is interpreted in the mobile communication terminal so as to identify the scrambling sequences and orthogonalization sequences used in producing the DM-RS, and the DM-RS are demodulated using the identified scrambling sequences and orthogonalization sequences.

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20-06-2013 дата публикации

Hybrid codebook design for wireless systems

Номер: US20130156075A1
Принадлежит: Intel Corp

Briefly, in accordance with one or more embodiments, a codebook for wireless transmissions may be generated by dividing a codebook into a fixed set of codewords and an adaptive set of codewords. The adaptive set of codewords may be scaled to cluster together and then rotated to be centered or nearly centered about a target. The adaptive set of codewords may then be merged with the fixed set of codewords to provide a hybrid codebook. A codeword from the hybrid codebook may be selected for precoding a transmission to provide a minimum, or nearly minimum, quantization error.

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04-07-2013 дата публикации

NETWORK MIMO REPORTING, CONTROL SIGNALING AND TRANSMISSION

Номер: US20130170437A1
Принадлежит: TEXAS INSTRUMENTS INCORPORATED

A coordinated multipoint transmitter is for use with a network MIMO super-cell and includes a coordination unit configured to provide joint link processing to coordinate a multipoint transmission corresponding to a set of transmission points. Additionally, the coordinated multipoint transmitter also includes a transmission unit configured to transmit the multipoint transmission using the set of transmission points. Additionally, a coordinated transmission receiver is for use with a network MIMO super-cell and includes a reception unit configured to receive a multipoint transmission corresponding to a set of transmission points. The coordinated transmission receiver also includes a processing unit configured to process the multipoint transmission from the set of transmission points. 1. A coordinated multipoint transmitter for use with a network MIMO super-cell , comprising:a coordination unit configured to provide joint link processing to coordinate a multipoint transmission corresponding to a set of transmission points; anda transmission unit configured to transmit the multipoint transmission using the set of transmission points.2. The transmitter as recited in wherein the multipoint transmission corresponds to the set of transmission points selected from the group consisting of:a statically configured set;a semi-statically configured set; anda dynamically configured set.3. The transmitter as recited in wherein the joint link processing provides a joint link adaptation for a portion of the set of transmission points that is based on CQI claim 1 , PMI or RI feedback from user equipment.4. The transmitter as recited in wherein the joint link processing provides uplink and downlink signaling for a portion of the set of transmission points that is based on CQI claim 1 , PMI or RI feedback from user equipment.5. The transmitter as recited in wherein the joint link processing provides different multipoint transmissions or a same multipoint transmission for a portion of ...

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01-08-2013 дата публикации

Communication Method of Coordinated Multi-Point Transmission Systems

Номер: US20130195024A1
Принадлежит: National Tsing Hua University NTHU

A communication method of coordinated multi-point transmission systems. Based on the Zadoff-Chu sequences, multiple training sequences are implemented, and the training sequences are a set of robust orthogonal training sequence (ROTS). Preamble signals that use the set of training sequences can be transmitted from multiple base stations/relay stations at the same time. In the case with the mixture signal of multiple preamble signals, user equipment can still use the received signal to estimate multiple carrier frequency offsets of the corresponding base stations/relay stations.

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01-08-2013 дата публикации

Centralized control of intra-cell device-to-device communication

Номер: US20130195026A1
Принадлежит: Intel Corp

An apparatus and method to centrally establish and control intra-cell device-to-device connections on licensed bands of a wireless communications network are disclosed herein. An eNodeB receives a request from a first device to communicate with a second device or a request from the first device for content or service. The eNodeB schedules a device discovery between the first device and at least a candidate device. The eNodeB determines establishing the device-to-device connection between the first device and the candidate device based on a discovery report generated by one of the first or candidate device. The discovery report comprises information about signal quality of transmission from the other one of the first or candidate device that is received by the one of the first or candidate device during the scheduled device discovery.

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29-08-2013 дата публикации

Method for transmitting signal in multiple node system

Номер: US20130223548A1
Принадлежит: LG ELECTRONICS INC

Provided is a signal transmission method of a multi-node system employing a plurality of nodes and a base station that can control each of the plurality of nodes. The method includes: transmitting per-node transmission information to a user equipment; transmitting at least one stream to the user equipment by applying a precoding matrix determined for each node in at least one node among the plurality of nodes; and receiving per-node feedback information from the user equipment, wherein the per-node feedback information includes information on a precoding matrix applicable to a node which transmits the at least one stream.

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19-09-2013 дата публикации

Method and apparatus for notifying a node in a multi-node system

Номер: US20130242877A1
Принадлежит: LG ELECTRONICS INC

The present description relates to a method for notifying at least one node being used from among a plurality of nodes in a multi-node system including the plurality of nodes and a base station for controlling the plurality of nodes, wherein the method comprises a step in which a terminal determines, from the table preemptively shared with the base station, an index for indicating at least one node to be notified; and a step in which the terminal performs communication with the base station using the determined index.

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19-09-2013 дата публикации

Method and device for feeding back precoding matrix indicator using interpolation

Номер: US20130242921A1
Принадлежит: LG ELECTRONICS INC

The present invention relates to a method and a device for feeding back a channel through precoding matrix indicator (PMI) interpolation. As one embodiment of the present invention, a method for feeding back a precoding matrix indicator (PMI) in a CoMP environment comprises the steps of: allowing a terminal to perform PMI interpolation by using PMIs that are included in the PMI window; allowing the terminal to select an optimum PMI by comparing the interpolated PMIs with a channel state of a current channel; and allowing the terminal to feed back the optimum PMI to a base station.

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26-09-2013 дата публикации

COORDINATED MULTIPOINT COMMUNICATION NETWORK WITH MULTIPLE COOPERATING eNBs AND METHOD FOR BEAMFORMING COORDINATION WITH INTERFERENCE SUPPRESSION

Номер: US20130250885A1
Принадлежит:

Embodiments of an enhanced Node-B (eNB) configured to operate as a serving eNB in a coordinated multi-point (CoMP) communication network and method are generally described herein. The serving eNB precodes signals for transmission to user equipment (UE) using a precoding matrix that is selected based on a reference PMI for a beamformed transmission in accordance with a modulation and coding scheme (MCS) that is selected from a modified CQI. When operating in coordination mode, on more cooperating eNBs are configured to suppress interference to the UE using coordination PMIs during the resource block allocated for the beamformed transmission. 1. An enhanced Node-B (eNB) configured to operate as a serving eNB in a coordinated multi-point (CoMP) communication network , the serving eNB configured to:receive a reference channel quality indicator (CQI) and one or more coordination CQIs from user equipment (UE);receive a reference precoding matrix indicator (PMI) associated with the reference CQI and a coordination PMI associated with each coordination CQI from the UE;calculate a modified CQI from the reference CQI and the coordination CQIs;provide the coordination PMIs to one or more cooperating eNBs for interference suppression; andprecode signals for transmission to the UE using a precoding matrix that is selected based on the reference PMI for a beamformed transmission in accordance with a modulation and coding scheme (MCS) that is selected from the modified CQI.2. The eNB of wherein the reference CQI is selected by the UE based on direct channel information from the serving eNB claim 1 ,wherein each coordination CQI selected by the UE based on both the direct channel information and interfering channel information for each of the cooperating eNBs,wherein the MCS that is selected based on the modified CQI is configured to provide a greater data rate than an MCS that would selected based solely on the reference CQI, andwherein when operating in coordination mode, the ...

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10-10-2013 дата публикации

Dynamic Clustering for Coordinated Transmission in Wireless Communication Systems

Номер: US20130267239A1
Принадлежит: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)

Systems and methods provide for applying a clustering based assignment algorithm (CbAA) in a telecommunication system. A method includes: receiving strength information for transmission points belonging to an associated Coordinated Multi-Point (CoMP)-cell; determining the clustering subsets, wherein the step of determining the clustering subsets includes: applying a k-means algorithm to the strength information to form K clusters; identifying the cluster associated with each UE; associating a cluster to each transmission point in accordance to a pre-defined rule; and selecting the UEs to be serviced; and reporting the clustering formations. 1. A system for applying a clustering based assignment algorithm (CbAA) in a telecommunication system comprising:means for receiving strength information for transmission points belonging to an associated Coordinated Multi-Point (CoMP)-cell; means for applying a k-means algorithm to the strength information to form K clusters;', 'means for identifying the cluster associated with each UE;', 'means for associating a cluster to each transmission point in accordance to a pre-defined rule; and', 'means for selecting the UEs to be serviced; and, 'means for determining the clustering subsets, wherein the means for determining the clustering subsets includesmeans for reporting the clustering formations.2. The system of claim 1 , wherein the means for selecting the UEs to be serviced further comprises:{'sub': 'k', 'means for starting from a first UE and using an algorithm to select a second UE which is most spatially compatible with the first UE and then the algorithm selects a third UE which is most spatially compatible with the first and second UEs which is performed successively until J* UEs are selected'}3. A method for dynamically determining clusters of user equipments (UEs) and transmission points (TPs) in a communication system comprising:receiving signal strength information associated with a plurality of UEs and TPs; ...

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24-10-2013 дата публикации

Coordination of self-optimization operations in a self organizing network

Номер: US20130279368A1
Принадлежит: Intel Corp

Embodiments of the present disclosure describe device, methods, computer-readable media and system configurations for coordinating a plurality of self-optimization operations, such as an energy-saving management operation and a capacity and coverage optimization operation, to reduce conflicts between changes to configuration parameters of a wireless network access node caused by the self-optimization operations. Other embodiments may be described and/or claimed.

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24-10-2013 дата публикации

Method and Device for Delivering Service Data

Номер: US20130279428A1
Автор: Liu Wenhao, Wang Yanwen
Принадлежит: ZTE CORPORATION

A method and device for sending service data are provided in the present invention, so as to realize simplification of a precoding matrix calculation method. The method includes: a network side executing the following steps: calculating a value space matrix according to a signal channel matrix of a serving cell of a terminal; calculating a null space matrix according to an interference channel matrix of a coordinating cell of the terminal; projecting a vector of the value space matrix to a space on which a vector of the null space matrix is located to obtain a precoding matrix of the terminal; and sending the service data in the serving cell of the terminal according to the precoding matrix. 1. A method for sending service data , comprising: a network side executing the following steps:calculating a value space matrix according to a signal channel matrix of a serving cell of a terminal;calculating a null space matrix according to an interference channel matrix of a coordinating cell of the terminal;projecting a vector of the value space matrix to a space on which a vector of the null space matrix is located to obtain a precoding matrix of the terminal; andsending the service data in the serving cell of the terminal according to the precoding matrix.2. The method according to claim 1 , wherein claim 1 , the step of calculating a value space matrix according to a signal channel matrix of a serving cell of a terminal comprises:{'sub': S', 'S', 'S', 'S', 'S', 'S', 'S, 'sup': H', 'H', 'H, 'solving an eigen value λ of the signal channel matrix according to |λI−A|=0, wherein, I is a unit matrix, A is H*Hor H*H, His the signal channel matrix between terminal and the serving cell, and His a conjugate transpose matrix of the H;'}obtaining an eigen vector y corresponding to each eigen value λ according to Ay=λy, wherein, the eigen vector γ, namely a value space vector, is used for constituting the value space matrix.3. The method according to claim 2 , wherein: the A is a ...

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24-10-2013 дата публикации

Downlink resource scheduling

Номер: US20130279462A1
Автор: Hong He, JONG-KAE FWU
Принадлежит: Intel Corp

Embodiments of the present disclosure describe devices, methods, computer-readable media and systems configurations for downlink resource scheduling in wireless networks. In some embodiments, the scheduling may include multi-subframe cross carrier scheduling utilizing downlink control information. Other embodiments may be described and/or claimed.

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24-10-2013 дата публикации

METHODS OF TRANSMITTING COORDINATE MULTIPLE POINT DATA BASED ON ORTOGONAL COVERING CODES

Номер: US20130279620A1
Автор: Zhang Xiaobo, Zhao Yan
Принадлежит: ALCATEL LUCENT

The present invention relates to methods of transmitting coordinate multiple point data based on orthogonal covering codes. In an embodiment of the present invention, there is provided a method of transmitting downlink data in a base station of a multiple input multiple output system. The method includes: A. determining a plurality of antenna groups from antennas of a plurality of coordinate multiple point cells; B. modulating inter-cell coordinate multiple point downlink data symbols for each antenna groups using different orthogonal covering codes. The orthogonal covering codes have a length not greater than twice the number of the antenna groups. With the methods of the present invention, a base station and a user equipment can distinguish signals from different coordinate multiple point cells, different antenna groups, or different coordinate multiple point clusters, reducing interference between signals from the different coordinate multiple point cells, the different antenna groups, or the different coordinate multiple point clusters. 1. A method of transmitting downlink data in a base station of a multiple input multiple output system , the method comprising:determining a plurality of antenna groups from antennas of a plurality of coordinate multiple point cells;modulating inter-cell coordinate multiple point downlink data symbols for each antenna group using different orthogonal covering codes respectively;wherein the orthogonal covering codes have a length being not greater than twice the number of the antenna groups.2. A method of claim 1 , wherein each antenna group determined includes antennas of only one cell; andmodulating inter-cell coordinate multiple point downlink data symbols for each antenna group using different orthogonal covering codes respectively further comprises transmitting different inter-cell coordinate multiple point downlink data symbols to an identical inter-cell coordinate multiple point user equipment via each antenna group.3. A ...

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31-10-2013 дата публикации

Signal interference measurements in a wireless communication network

Номер: US20130286867A1
Принадлежит: Intel Corp

Embodiments of the present disclosure describe techniques and configurations for handling interference measurements in a wireless communication network. An apparatus may include computer-readable media having instructions and processors coupled with the computer-readable media and configured to execute the instructions to identify, for a serving eNB, a neighboring eNB for which signal interference measurements are to be performed by one or more wireless devices served by the serving eNB, and request that the neighboring eNB transmit typical interference signals within data units which are configured for, and may or may not have, a scheduled physical downlink shared channel transmission. The wireless devices may be configured to perform the signal interference measurements based at least in part on the typical interference signals, which may include non-zero-power signals or zero-power signals. Other embodiments may be described and claimed.

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31-10-2013 дата публикации

Modular base station

Номер: US20130287001A1
Принадлежит: Telefonaktiebolaget LM Ericsson AB

A base station module configured to be part of a group of base station modules comprising the base station module and other base station modules, the group of base station modules together forming a base station, and having antennas for receiving radio signals from mobile stations in a base station communication band, a communication interface for transferring data obtained via the received radio signals to the other base station modules and for receiving corresponding data from the other base station module, a data handling unit selects data for transfer to the other base station modules and an uplink data processing unit processes channels used by a subset of the mobile stations communicating with the base station, where the subset is assigned to the base station module. The base station module uses the data received from the other base station modules to influence processing in the uplink data processing unit.

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31-10-2013 дата публикации

Method and device for transmitting/receiving downlink reference signal in wireless communication system

Номер: US20130287064A1
Принадлежит: LG ELECTRONICS INC

The present invention relates to a wireless communication system, and discloses a method and a device for transmitting/receiving a downlink reference signal in a wireless communication system. The present invention provides a way for maintaining orthogonality of a reference signal between cells in a multi-cell operation.

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31-10-2013 дата публикации

MIMO RECEPTION DEVICE AND MIMO RECEPTION METHOD

Номер: US20130287149A1
Принадлежит:

Provided are a MIMO transmission device and a MIMO transmission method which can improve reception quality of a response signal. A terminal () as the MIMO transmission device maps a first and a second element of the ACK/NACK signal vector formed from ACK/NACK signals onto a first and a second stream, respectively, and transmits the elements contained in a 2SC-FDMA symbol in a single slot. In the terminal (), a response signal vector formation unit () forms [a·S, 0] as the ACK/NACK signal vector in a first SC-FDMA symbol and [0, a·S] as an ACK/NACK signal vector in a second SC-FDMA symbol. A precoding unit () uses a unitary matrix to precode the ACK/NACK signal vector formed in the response signal vector formation unit (). 1. A reception apparatus comprising:a receiver configured to receive a first stream and a second stream that are transmitted from a transmission apparatus and that are spatial-multiplexed, wherein, the first stream is generated using a first sequence, a first ACK/NACK signal vector and a second ACK/NACK signal vector different from the first ACK/NACK signal vector, and the second stream is generated using a second sequence different from the first sequence, the first ACK/NACK signal vector and the second ACK/NACK signal vector, each of the first ACK/NACK signal vector and the second ACK/NACK signal vector being formed based on a signal indicative of ACK/NACK; anda detector configured to detect said signal indicative of ACK/NACK based on the first ACK/NACK signal vector and the second ACK/NACK signal vector.2. The reception apparatus according to claim 1 , wherein a combination of elements included in the first ACK/NACK signal vector is different from a combination of elements included in the second ACK/NACK signal vector.3. The reception apparatus according to claim 1 , wherein a phase of the first ACK/NACK signal vector is different from a phase of the second ACK/NACK signal vector.4. The reception apparatus according to claim 1 , wherein each of ...

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31-10-2013 дата публикации

Method and apparatus for interference alignment in wireless communication system

Номер: US20130288699A1
Автор: Jung-Hoon Lee, Wan Choi

A method for operating a base station in a wireless communication system is provided. In the method, feedback is received from at least one terminal. When the base station configures terminal allocation information, a terminal that the base station is to service is determined based on information included in the feedback. A combination of base stations allowing the determined terminal to obtain maximal performance is determined with consideration of the information included in the feedback and a gain of cooperation between base stations.

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31-10-2013 дата публикации

Method of Managing Cooperating Set for Coordinated Multiple Point Transmission and Reception and Related Communication Device

Номер: US20130288731A1
Автор: CHU Feng-Seng
Принадлежит: HTC CORPORATION

A method of managing cooperating set for a network in a wireless communication system supporting a technology of coordinated multipoint (CoMP) transmission/reception includes periodically updating a cooperating set of CoMP for a user equipment of the wireless communication system; wherein the cooperating set of CoMP represents a set of transmission points directly and/or indirectly participating in data transmission to the user equipment in the wireless communication system. 1. A method of managing cooperating set for a network in a wireless communication system supporting a technology of coordinated multipoint (CoMP) transmission/reception , the method comprising:periodically updating a cooperating set of CoMP for a user equipment of the wireless communication system;wherein the cooperating set of CoMP represents a set of transmission points directly and/or indirectly participating in data transmission to the user equipment in the wireless communication system.2. The method of claim 1 , wherein the step of periodically updating a cooperating set of CoMP for the user equipment of the wireless communication system comprises:periodically configuring radio resources for each of the transmission points to transmit channel state information reference signals (CSI-RS) at the configured radio resources;signaling an indication regarding the radio resources with scheduling information to the user equipment;obtaining signal strength information of the CSI-RS from the user equipment; anddetermining and updating the cooperating set for the user equipment according to the signal strength information of the CSI-RS.3. The method of claim 2 , wherein the user equipment measures the CSI-RS according to the indication claim 2 , to generate the signal strength information.4. The method of claim 2 , wherein the radio resources for each of the transmission points are non-overlapping.5. The method of claim 2 , wherein the signal strength information of the CSI-RS comprises reference ...

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07-11-2013 дата публикации

Method of transmitting and receiving channel status information on multi-cell operation in a wireless communication system and apparatus for the same

Номер: US20130294352A1
Принадлежит: LG ELECTRONICS INC

The present invention relates to a wireless communication system. And, a method of transmitting and receiving channel status information on a multi-cell operation in a wireless communication system and apparatus for the same are disclosed. The present invention may include determining a report type of channel status information on multi-cell operation and transmitting/receiving the channel status information corresponding to the determined channel status information report type via uplink data channel.

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14-11-2013 дата публикации

Methods and apparatuses to improve on-time throughput for integrated multi-rat heterogeneous networks

Номер: US20130301435A1
Принадлежит: Intel Corp

Methods and devices for optimizing on-time throughput in a wireless network. An enhanced node B (eNodeB) integrating two or more air interfaces schedules transmissions, for a measurement period, over at least one of the two or more air interfaces. The eNodeB estimates, based on the transmissions, a metric of on-time throughput for the user equipment (UE) within the cell, where on-time throughput is a measure of an amount of data that arrives at a destination before a delay threshold has been reached and at a bit-rate greater than or equal to a target bit-rate. The eNodeB then assigns UEs within the cell to an air interface of the two or more air interface to maximize the metric of on-time throughput for the UEs within the cell.

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14-11-2013 дата публикации

Method and apparatus for performing coordinated multipoint feedback under multiple channel and interference assumptions

Номер: US20130301450A1
Принадлежит: Qualcomm Inc

Certain aspects of the present disclosure provide methods and apparatus for performing coordinated multipoint (CoMP) channel state information (CSI) feedback under multiple channel and interference assumptions. One method generally includes receiving signaling indicating at least one or more interference measurement resources (IMRs) from a network and a configuration with one or more non-zero power reference signal (NZP-RS) resources in which one or more base stations transmit a RS, performing separate interference measurements at least on a per-IMR basis in one or more subframes by forming a baseline interference estimate based on the IMR and forming separate interference estimates based on adding interference from selected NZP-RS resources to the baseline interference estimate, and transmitting one or more CSI feedback reports that correspond to the interference measurements.

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14-11-2013 дата публикации

Communication method and apparatus for jointly transmitting and receiving signal in mobile communication system

Номер: US20130301455A1
Автор: Jung-Soo Jung
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A communication method is performed by a Mobile Station (MS) in a mobile communication system including a plurality of Base Stations (BSs). The method includes receiving at least one reference signal through at least one receive beam in a direction of nearby BSs, determining at least one candidate BS for joint transmission/reception among the nearby BSs based on the received at least one reference signal, and transmitting information about the determined at least one candidate BS to a serving BS.

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14-11-2013 дата публикации

Scheduling and hybrid automatic repeat request (harq) timing indication for an uplink-downlink (ul-dl) reconfiguration

Номер: US20130301490A1
Принадлежит: Intel Corp

Technology for reconfiguring an uplink-downlink (UL-DL) time-division duplexing (TDD) configuration timing is disclosed. In an example, a user equipment (UE) for reconfiguring an uplink-downlink (UL-DL) time-division duplexing (TDD) configuration timing can have computer circuitry configured to: Decode a physical downlink control channel (PDCCH) for downlink control information (DCI) including a timing indication field (TIF); and reconfigure a channel timing for a semi-static UL-DL TDD configuration using the TIF. The channel timing can include a physical downlink shared channel (PDSCH) hybrid automatic repeat request (HARQ) timing, a physical uplink shared channel (PUSCH) scheduling timing, or a PUSCH HARQ timing.

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14-11-2013 дата публикации

SIGNALING SCHEME FOR COORDINATED TRANSMISSIONS

Номер: US20130301526A1
Автор: Zhu Chenxi
Принадлежит: FUJITSU LIMITED

A method of signal transmission in a wireless communications network is disclosed. The method includes identifying a particular transmission point to transmit to a mobile device in a particular transmission and determining whether the particular transmission point will operate at a power level equivalent to that of a serving cell of the mobile device. The method further includes transmitting to the mobile device an identification of the value of a cell-specific parameter associated with the cell of the particular transmission point, if the particular transmission point will not operate at a power level equivalent that of the serving cell. The method still further includes transmitting to the particular transmission point an identification of a value of the cell-specific parameter associated with the serving cell, if the particular transmission point will operate at a power level equivalent to a power level of the serving cell. 1. A method of signal transmission in a wireless communications network , the method comprising:identifying a particular transmission point to transmit data to a mobile device in a particular transmission;determining whether the particular transmission point will operate at a power level equivalent to a power level of a serving cell of the mobile device;transmitting to the mobile device an identification of the value of a cell-specific parameter associated with the cell of the particular transmission point, if the particular transmission point will not operate at a power level equivalent to a power level of a serving cell of the mobile device; andtransmitting to the particular transmission point an identification of a value of the cell-specific parameter associated with the serving cell of the mobile device, if the particular transmission point will operate at a power level equivalent to a power level of a serving cell of the mobile device.2. The method of claim 1 , wherein transmitting to the mobile device an identification of the value of ...

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14-11-2013 дата публикации

Selective joinder of machine-type communication user equipment with wireless cell

Номер: US20130303166A1
Принадлежит: Intel Corp

Embodiments are described herein for selective joinder of wireless cells by machine-type communication (“MTC”) user equipment (“UE”). An MTC UE may detect a plurality of wireless cells, each provided by an evolved Node B (“eNB”). The MTC UE may detect eNB categories associated with individual wireless cells of the plurality of wireless cells, and may identify one or more wireless cells of the plurality of detected wireless cells on which MTC traffic is permitted based on the associated eNB categories. The MTC UE may selectively join a wireless cell of the one or more identified wireless cells based on a cell selection criterion. Additionally, an eNB may provide a wireless cell and provide, to an MTC UE, an MTC policy that identifies a circumstance under which the eNB will permit MTC traffic. The eNB may be configured to selectively serve the MTC UE based on the MTC policy.

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21-11-2013 дата публикации

CHANNEL STATUS INFORMATION FEEDBACK METHOD AND APPARATUS IN MULTI-NODE SYSTEM

Номер: US20130308542A1
Принадлежит: LG ELECTRONICS INC.

Provided is a channel status information feedback method and apparatus of a terminal in a multi-node system, including a plurality of nodes and a base station which is connected to and can control each of the plurality of nodes. The method comprises the steps of: obtaining one precoding matrix index (PMI) for each cooperative node with respect to the entire target frequency band; obtaining a phase correction value to be applied to the PMI for said each cooperative node in each sub-band within the target frequency band; and feeding the calculated PMI and phase correction value back to the serving node. 1. A method of feeding back channel status information of a terminal in a multi-node system including a plurality of nodes and a base station connected to each of the plurality of nodes and able to control the plurality of nodes , the method comprising:obtaining a precoding matrix index (PMI) for each cooperative node over an entire target frequency band;obtaining a phase correction value to be applied to the PMI for each cooperative node in each subband of the target frequency band; andfeeding back the obtained PMI and the phase correction value to a serving node.2. The method of claim 1 , wherein the target frequency band is the entire system band of the multi-node system.3. The method of claim 1 , wherein the phase correction value to be applied to the PMI for each cooperative node is information used for forming one precoding matrix by connecting PMIs for two or more different cooperative nodes.4. The method of claim 1 , further comprising:receiving target frequency band information from the serving node, wherein the target frequency band information indicates the target frequency band.5. The method of claim 4 , wherein the target frequency band information indicates a partial frequency band of the entire system band as the target frequency band.6. The method of claim 1 , wherein in a case where a number of subbands in the target frequency band is N claim 1 , the ...

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21-11-2013 дата публикации

COORDINATED COMMUNICATION IN COMMUNICATION SYSTEM

Номер: US20130308569A1
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

A method of supporting communication of a terminal in a first base station of a beamforming system is provided. The method includes determining an uplink control channel through which both the first base station and at least one second base station are able to receive signals, through cooperation with the at least one second base station, the first base station and the at least one second base station belonging to a cloud cell, and transmitting to the terminal information on the determined uplink control channel and frame information to establish relationships with the base stations included in the cloud cell for each transmit frame of a signal to be transmitted to the terminal from the base stations. 1. A method of supporting communication of a terminal in a first base station of a beamforming system , the method comprising:determining an uplink control channel through which both the first base station and at least one second base station are able to receive signals, through cooperation with the at least one second base station, the first base station and the at least one second base station belonging to a cloud cell; andtransmitting to the terminal information on the determined uplink control channel and frame information to establish relationships with the base stations included in the cloud cell for each transmit frame of a signal to be transmitted to the terminal from the base stations.2. The method of claim 1 , further comprising:receiving information on a signal that the at least one second base station received from the terminal through the uplink control channel from the at least one second base station.3. The method of claim 2 , further comprising:transmitting a control transfer signal over the terminal to one of the at least one second base station that is configured to receive a best signal from the terminal, using the information on the received signal.4. The method of claim 2 , wherein the signal that the at least one second base station received from ...

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21-11-2013 дата публикации

METHOD FOR JOINT OPTIMIZATION OF SCHEDULE AND RESOURCE ALLOCATION BASED ON THE GENETIC ALGORITHM

Номер: US20130308570A1

The invention relates to the technical field of wireless communication, and provides a method for joint optimization of schedule and resource allocation based on a genetic algorithm, which is applied in a CoMP communication system. The method includes steps of: S1, encoding chromosome; S2, initializing setting; S3, computing fitness value; S4, determining whether the optimal solution is better than an elite: if yes, updating the elite and executing S5, and if no, turning to S5; S5, determining whether a predetermined generation of population has been generated or not, if no, executing S6, otherwise, turning to S8; S6, participating reproduction process to generate two offspring chromosome individuals; S7, determining whether a predetermined number of offspring chromosome individuals have been generated, if yes, turning to S3 to compute again; otherwise keeping on reproduction; S8, performing schedule and resource allocation according to a solution corresponding to the elite. Under the condition of satisfying schedule limitation and power limitation, the method can, by uniting schedule and resource allocation, efficiently optimize system performance with less computing complexity. 1. A method for joint optimization of schedule and resource allocation based on genetic algorithm for use in a CoMP communication system , comprising steps ofS1, designing encoding chromosome for a potential solution of a problem;S2, initializing settings, including setting an initial population, an elite, and control parameters of the genetic algorithm;S3, computing fitness values of respective chromosomes in a new population including the elite;to S4, determining whether the optimal solution is better than the elite, if yes, updating the elite and then proceeding step S5; otherwise, directly turning to step S5;S5, determining whether a predetermined number of generations of population have been generated, if no, proceeding step S6; otherwise, directly turning to step S8;S6, participating ...

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28-11-2013 дата публикации

Mobile terminal, micro base station, macro base station, communication system and communication method

Номер: US20130315087A1
Принадлежит: Fujitsu Ltd

A mobile terminal, a micro base station, a macro base station, a communication system and a communication method. The method includes receiving from a micro base station a designation of specific subframe and a designation of feedback mode; judging whether a current subframe is a specific subframe designated by the micro base station; and measuring and feeding back the channel condition of the current subframe in a joint transmission feedback mode when the current subframe is the specific subframe designated by the micro base station, and measuring and feeding back the channel condition of the current subframe in a feedback mode designated by the micro base station when the current subframe is not the specific subframe designated by the micro base station.

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28-11-2013 дата публикации

Method for transmitting and method for receiving a channel state information reference signal in a distributed multi-node system

Номер: US20130315197A1
Принадлежит: LG ELECTRONICS INC

The present invention relates to a method for transmitting a reference signal (RS) in a distributed multi-node system. The transmission method comprises: a step of constructing multiple channel state information reference signals (CSI-RSs) having power which is not zero in an intra-cell; and a step in which a base station transmits control information on the multiple CSI-RSs to a terminal. Here, the channel state information reference signals of multiple patterns may be transmitted in one subframe. The transmission method may further comprise a step of receiving feedback information on the channel state information reference signals from the terminal.

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05-12-2013 дата публикации

Method of determining a channel state in coordinated multipoint transmission

Номер: US20130322288A1
Автор: Huan Sun, Xiaobo Zhang
Принадлежит: Alcatel Lucent SAS

In order to reduce the feedback overhead of channel state information in Coordinated Multipoint (CoMP) transmission, the present invention provides a method of determining a channel state in the CoMP transmission, wherein the serving base station receives first channel state information with the serving base station and second channel state information with each of coordinated base stations, fed back by a user equipment; informing each coordinated base stations of the corresponding second channel state information; precoding a first reference signal according to the first channel state information, and sending the precoded first reference signal to the user equipment on the communication resource commonly used with the coordinated base station, wherein the first reference signal is superimposed with precoded second reference signals respectively sent by each of coordinated base stations; receiving third channel state information fed back by the user equipment according to the superimposed reference signal, and determining a channel state of the coordinated multipoint transmission corresponding to the user equipment, according to the first, second and third channel state information.

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19-12-2013 дата публикации

APERIODIC AND PERIODIC CSI FEEDBACK MODES FOR COORDINATED MULTI-POINT TRANSMISSION

Номер: US20130336214A1
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

Coordinate multi-point (CoMP) transmission is facilitated by resolving collisions between feedback reporting. Based upon the conditions within the network, collision resolution may be by dropping a channel report during a subframe, multiplexing channel reports from a plurality of user equipment, compressing channel reports a plurality of user equipment, and combined reporting, either through joint reports or by using carrier aggregation, for conditions between a user equipment and a plurality of transmission points. New signaling and reporting formats facilitate selection of a collision resolution suitable for current network conditions. 1. A user equipment , comprising:a control system configured to report channel state information (CSI) to one of a plurality of transmission points from which the user equipment is receiving signals,wherein a rank indicator (RI) for the reported CSI is selected to correspond to an RI specified for a current RI-reference CSI process for the user equipment, andwherein a format for the reported CSI is selected to be compatible with the selected RI.2. The user equipment according to claim 1 , wherein the reported CSI comprises CSI reference signal (CSI-RS) information.3. The user equipment according to claim 1 , wherein the selected RI is employed for CSI reporting by the user equipment to two or more of the transmission points.4. The user equipment according to claim 1 , wherein the reported CSI comprises a periodic CSI report.5. The user equipment according to claim 1 , wherein the reported CSI comprises an aperiodic CSI report.6. A user equipment claim 1 , comprising: to report channel state information (CSI) to each of two or more transmission points from which the user equipment is receiving signals, and', 'in response to a collision between at least two CSI reports to different transmission points, to drop one of the at least two CSI reports based upon configuration indices associated with the two CSI reports., 'a control system ...

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26-12-2013 дата публикации

Method and Apparatus for Determining Transmission Power

Номер: US20130343218A1
Принадлежит: NOKIA SIEMENS NETWORKS OY

A technique, including in a communication system involving a plurality of access nodes cooperatively detecting a transmission from a communication device, determining at said communication device a transmission power parameter relating to said communication device at least partly on the basis of a plurality of pathloss values including a first pathloss value for a first set of access nodes of said plurality of access nodes transmitting a first reference signal at substantially the same transmission power and a second pathloss value for one or more second access nodes of said plurality of access nodes transmitting a second reference signal at substantially the same transmission power.

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26-12-2013 дата публикации

TECHNIQUES FOR JOINT SUPPORT OF COORDINATED MULTIPOINT (CoMP) OPERATIONS AND CARRIER AGGREGATION (CA)

Номер: US20130343301A1
Принадлежит:

Certain aspects of the present disclosure provide methods and apparatus for joint support of coordinated multipoint (CoMP) operations and carrier aggregation (CA). One method generally includes receiving signaling indicating a configuration, from a set of possible configurations, that defines how the UE is to communicate with one or more base stations (BSs) using coordinated multipoint (CoMP) operations on one or more component carriers (CCs) and communicating in accordance with the configuration. 1. A method for wireless communication by a user equipment (UE) , comprising:receiving signaling indicating a configuration, from a set of possible configurations, that defines how the UE is to communicate with one or more base stations (BSs) using coordinated multipoint (CoMP) operations on one or more component carriers (CCs); andcommunicating in accordance with the configuration.2. The method of claim 1 , wherein the configuration allows for CoMP operations on more than one CC.3. The method of claim 1 , wherein the configuration limits CoMP operations to a single CC.4. The method of claim 3 , wherein the single CC is at least one of a primary component carrier (PCC) and a secondary component carrier (SCC).5. The method of claim 1 , wherein the configuration indicates the UE is to communicate utilizing only one of CoMP or carrier aggregation (CA).6. The method of claim 1 , further comprising:receiving an indication of a number of configurable channel state information (CSI) reports.7. The method of claim 6 , wherein the number of configurable CSI reports is limited to one per CC.8. The method of claim 6 , wherein the number of configurable CSI reports is limited for CCs configured with CoMP.9. The method of claim 3 , further comprising receiving signaling indicating at least one of the CCs not configured with CoMP is configured with an interference measurement resource for purposes of CSI feedback.10. The method of claim 1 , further comprising:receiving signaling ...

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26-12-2013 дата публикации

SIGNALING FOR CONFIGURATION OF DOWNLINK COORDINATED MULTIPOINT COMMUNICATIONS

Номер: US20130343317A1
Принадлежит:

Embodiments of the present disclosure describe devices, methods, computer-readable media and systems configurations for configuration of downlink coordinated multi-point (CoMP) communications in a wireless communication network. A user equipment (UE) may receive channel state information (CSI) reference signal (RS) parameters, from an evolved Node B (eNB), for individual transmission points of a coordinated multi-point (CoMP) Measurement Set including a plurality of transmission points. The UE may generate CSI-RS feedback information for the individual transmission points of the CoMP Measurement Set, and may transmit the generated CSI-RS feedback information for one or more of the individual transmission points to the eNB. The UE may receive a transmission from the eNB updating the individual transmission points included in the CoMP Measurement Set. 146-. (canceled)47. An apparatus to be employed by a user equipment (UE) , the apparatus comprising:a communications module configured to communicate with an evolved Node B (eNB) over a wireless communications network; receive channel state information (CSI) reference signal (RS) parameters for individual transmission points of a coordinated multi-point (CoMP) Measurement Set including a plurality of transmission points;', 'generate CSI-RS feedback information for the individual transmission points of the CoMP Measurement Set;', 'transmit the generated CSI-RS feedback information for one or more of the individual transmission points to the eNB via the communications module; and', 'receive a transmission from the eNB updating the individual transmission points included in the CoMP Measurement Set., 'a feedback module coupled with the communications module and configured to48. The apparatus of claim 47 , wherein the feedback module is further configured to transmit signals to provide candidate feedback information for individual transmission points of a candidate measurement set including a plurality of transmission points ...

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26-12-2013 дата публикации

Coordinated multipoint resource management measurement

Номер: US20130344868A1
Автор: Shohei Yamada
Принадлежит: Sharp Laboratories of America Inc

A method for performing a measurement procedure is described. A measId in a measIdList within a VarMeasConfig is selected. Autonomous removal of measurement identities related to the channel state information reference signal (CSI-RS) is performed. Removal of measurement identities related to the channel state information reference signal (CSI-RS) due to a handover or a successful re-establishment is performed.

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02-01-2014 дата публикации

SYSTEM AND APPARATUS FOR INTERFERENCE SUPPRESSION USING MACRODIVERSITY IN MOBILE WIRELESS NETWORKS

Номер: US20140003304A1
Принадлежит: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)

In a wireless network, plural downlink signals from plural base stations are transmitted to a terminal. The plural downlink signals all carry the same information to the terminal. The terminal provides feedback on the downlink channels. The feedback provides information on the taps of the channels. The amount of information fed back is constrained. Based on the feedback, transmission parameters of the downlink signals are adjusted. The process of transmitting, providing feedback, and adjusting the parameters continue so that the energy of the downlink signal is enhanced at the terminal location and suppressed elsewhere. Beam forming can be used to further suppress the energy signature at locations other than the terminal location. 1. A method of wireless communication , comprising:transmitting plural downlink signals from plural base stations to a terminal, wherein the plural downlink signals carry same information to the terminal;receiving a feedback from the terminal regarding the plural downlink signals transmitted by the plural base stations; andadjusting transmission parameters for each downlink signal based on the feedback from the terminal,wherein each base station transmits its downlink signal on a corresponding downlink channel, andwherein the feedback from the terminal includes information regarding one or more taps of each downlink channel corresponding to each base station.2. The method of claim 1 , wherein the plural base stations are geographically spaced apart from each other such that shadowing characteristics of the downlink channel from one base station is independent of shadowing characteristics of another base station.3. The method of claim 1 , wherein each of the plural base stations is capable of communicating with the terminal independent of the other base stations.4. The method of claim 1 , wherein the transmission parameters are adjusted such that within a serving area of the plural base stations claim 1 , energy of the transmitted downlink ...

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09-01-2014 дата публикации

Method and apparatus for channel state information feedback reporting

Номер: US20140010126A1
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A method for transmitting a CSI feedback report to a serving cell comprises for time division duplex, configuring at least one periodic CSI process with a CSI reference source defined by a single downlink subframe n-n CQI — ref , wherein n CQI — ref is a smallest value greater than or equal to a positive integer n CQI — ref — min , such that it corresponds to a valid downlink subframe, wherein n CQI — ref — min varies based on a number of at least one periodic CSI process. A method for CSI feedback reporting to a base station comprises configuring not to accommodate, by a user equipment, the one or more aperiodic CSI requests arrived from a serving cell except a CSI request of CSI processes with lower indexes for each serving cell, wherein a number of the one or more CSI processes with a lower index (es) is determined based on a number of pending CSI reports.

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09-01-2014 дата публикации

Method and Apparatus for Implementing Multi-Cell Precoding

Номер: US20140010151A1
Автор: WEI Wei
Принадлежит: ZTE Corp

The present invention discloses a method and an apparatus for implementing multi-cell precoding. Users can be divided into center users and edge users according to areas, and the divided center users and edge users are processed by adopting different precoding methods. The method and apparatus of the present invention make the users located at the edge of the cell cluster and in the center of the cell cluster can be distinguished to be processed, thereby greatly optimizing and improving the rate of the entire multi-cell MIMO system; and make the interference received by the target user at users of the multi-cell edge has a clear definition and a measurement method. The aforementioned characteristics can guarantee to achieve an effective suppression for the communication interference in a heterogeneous network.

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09-01-2014 дата публикации

Signal transmitting method and device in a multi-node system

Номер: US20140010321A1
Принадлежит: LG ELECTRONICS INC

Provided is a signal transmitting method of a terminal in a multi-node system including and configured to control a plurality of nodes and a base station connected to each of the plurality of nodes. The method includes: estimating a channel of at least one node by receiving a reference signal from at least one node among the plurality of nodes; selecting a preferred rank and a precoding matrix index by applying at least one precoding matrix to the estimated channel; selecting one of a plurality of codeword-layer mappings (CLMs) by applying a precoding matrix indicated by the rank and the precoding matrix index; and transmitting the selected rank, the selected precoding matrix index, and a CLM indicator to the base station.

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09-01-2014 дата публикации

Performing Coordinated Multipoint Transmission and Reception (CoMP) in a Wireless Communication Network

Номер: US20140011531A1
Принадлежит: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)

The present invention relates to the field of coordinated multipoint transmission and reception (CoMP) in wireless communication networks, in particular to methods, an apparatus, and a network node for use in performing coordinated data transmissions in a wireless communication network. A method for use in a network node for coordinating data transmission to user equipments in a wireless communication network, wherein the wireless communication network comprising at least two access nodes each access node having one or more antennas and being arranged to perform coordinated data transmissions to user equipments is provided. The method comprising: obtaining signal strength values associated with the one or more antennas of the at least two access nodes for a number of user equipments; arranging the number of user equipments into one or more groups of user equipments and associating each of the one or more groups of user equipments with a sub-set of the one or more antennas of the at least two access nodes based on the obtained signal strength values; and coordinating data transmission performed by the at least two access nodes to each of the one or more groups of user equipments based on the subset of the one or more antennas of the at least two access nodes associated with each group of user equipments, respectively. 119-. (canceled)20. A method for use in a network node for coordinating data transmissions to user equipments in a wireless communication network , said wireless communication network comprising at least two access nodes each having one or more antennas and being arranged to perform coordinated data transmissions to user equipments , comprising:obtaining signal strength values associated with the one or more antennas of the at least two access nodes for a number of user equipments;arranging the number of user equipments into one or more groups of user equipments and associating each of the one or more groups of user equipments with a sub-set of the one ...

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16-01-2014 дата публикации

DEDICATED REFERENCE SIGNAL DESIGN FOR NETWORK MIMO

Номер: US20140016603A1
Принадлежит: QUALCOMM INCORPORATED

Aspects describe utilizing a dedicated reference signal for supporting Network MIMO, distributed MIMO, Coordinated MultiPoint, and the like. A data modulation symbol is transmitting in the same direction as a pilot modulation symbol is transmitted. Two or more wireless devices can coordinate communications such that transmission of the same pilot modulation symbol and the same data modulation symbol are transmitted to a device in different directions, each direction associated with a wireless device and intended for a particular mobile device. Cluster-specific scrambling and/or user-group specific scrambling can be employed and a scrambling code can be communicated prior to transmission of the pilot modulation symbols and data modulation symbols. 1. A method performed by a first wireless device for using a dedicated reference signal for supporting Coordinated MultiPoint transmission , comprising:coordinating with a second wireless device a transmission of a first data modulation symbol to a first user device;transmitting in a first direction the first data modulation symbol intended for the first user device; andtransmitting a first pilot modulation symbol in the first direction.2. The method , apparatus , non-transitory computer-readable medium , or system as described in the specification and/or figures. The present Application for Patent is a continuation of co-pending U.S. patent application Ser. No. 12/508,026, entitled “DEDICATED REFERENCE SIGNAL DESIGN FOR NETWORK MIMO,” filed Jul. 23, 2009 which claims priority to U.S. Provisional Patent Application No. 61/085,759, entitled “DEDICATED REFERENCE SIGNAL DESIGN FOR NETWORK MIMO,” filed Aug. 1, 2008; each of which is assigned to the assignee hereof and the entirety of which is hereby expressly incorporated by reference herein.I. FieldThe following description relates generally to communications in a multiple-input-multiple-output network and more particularly to Single Frequency Network (SFN) transmission of a ...

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06-02-2014 дата публикации

WIRELESS COMMUNICATION DEVICE, WIRELESS COMMUNICATION TERMINAL, AND AUTOMATIC REPEAT REQUEST CONTROL METHOD

Номер: US20140036855A1
Принадлежит: Panasonic Corporation

A wireless communication device used in a communication system that utilizes a coordinated multiple-point technique has a determination section that determines another wireless communication device which performs coordinated multiple-point with respect to a wireless communication terminal; an allocation determination section that determines for a predetermined number of sub-frames a proportion of multiple-data-transmission automatic repeat request control to identical-data-transmission automatic repeat request control; an automatic repeat request control section that performs multiple-data-transmission automatic repeat request control; and an automatic repeat request control section that performs identical-data-transmission automatic repeat request control. 1. A wireless communication device used in a communication system configured to utilize a coordinated multiple-point technique , the device comprising:a coordinated multiple-point base station determination section configured to determine another wireless communication device which performs, together with the wireless communication device of interest, multiple-point coordinate with respect to a wireless communication terminal;an allocation determination section configured to determine for a predetermined number of sub-frames a proportion of multiple-data-transmission automatic repeat request control to identical-data-transmission automatic repeat request control;a first automatic repeat request control section configured to perform the multiple-data-transmission automatic repeat request control; anda second automatic repeat request control section configured to perform the identical-data-transmission automatic repeat request control.2. The wireless communication device according to claim 1 , further comprising a transmission delay time calculation section configured to calculate a transmission delay time existing between the wireless communication device of interest and the other wireless communication device ...

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06-02-2014 дата публикации

Midamble allocations for mimo transmissions

Номер: US20140037024A1
Принадлежит: Sony Corp

Allocation of multiple training sequences transmitted in a MIMO timeslot from multiple transmit antenna elements is provided. For example, a method of generating signals in a MIMO timeslot, the method comprising: selecting a first training sequence; preparing a first data payload; generating a first signal including the prepared first data payload and the first training sequence; transmitting the first signal in a MIMO timeslot from a first antenna of a network element; selecting a second training sequence, wherein the second training sequence is different from first training sequence; preparing a second data payload; generating a second signal including the prepared second data payload and the second training sequence; and transmitting the second signal in the MIMO timeslot from a second antenna of the network element.

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13-02-2014 дата публикации

Method and system for optimizing communication in leaky wave distributed transceiver environments

Номер: US20140044043A1
Автор: Mehran Moshfeghi
Принадлежит: Golba LLC

A communication device may comprise a plurality of distributed transceivers and one or more corresponding antenna arrays. A processor may configure a first distributed transceiver to receive signals comprising one or more first data streams via one or more first communication links. The processor may configure a second distributed transceiver to receive signals comprising one or more second data streams via one or more second communication links. The processor may determine a channel response matrix associated with communication of the one or more first data streams via the one or more first communication links and/or the one or more second data streams via the one or more second communication links. The processor may optimize one or both of link capacity and/or link reliability of the one or more first communication links and/or the one or more second communication links based on the determined channel response matrix.

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13-02-2014 дата публикации

Method and system for distributed transceivers and mobile device connectivity

Номер: US20140045541A1
Автор: Mehran Moshfeghi
Принадлежит: Golba LLC

A plurality of distributed transceivers in a mobile entity such as a car, a truck, an omnibus (bus), a trailer, a mobile home, train, bus, a forklift, construction equipment, a boat, a ship, and/or an aircraft, and/or one or more corresponding antenna arrays that are communicatively coupled to the distributed transceivers are configured to handle communication of one or more data streams among one or more of a plurality of wireless communication networks, one or more other mobile entities and/or one or more mobile communication devices. The data streams may be communicated utilizing the configured one or more of the plurality of distributed transceivers and/or the one or more corresponding antenna arrays. The wireless communication networks includes a satellite network, a wireless wide area network, a wireless medium area network, a wireless local area network, a wireless personal area network, a network cloud and/or the Internet.

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20-02-2014 дата публикации

Methods and Apparatus for Error Correction for Coordinated Wireless Base Stations

Номер: US20140050148A1
Автор: Choi Hyung-Nam
Принадлежит: Apple Inc.

Methods and apparatus for coordinated error correction among a set of wireless base stations in communication with one another. In one embodiment, the wireless base stations are part of a cellular network having various cellular base stations (including a serving base station, and multiple supplemental base stations), and transmit multiple redundant versions of a transport block using a Hybrid Automatic Repeat Request (HARQ) based scheme. The aggregate of the multiple redundant versions of the transport block are soft combined and acknowledged (ACK) or not-acknowledged (NACK) by the cellular equipment. The serving base station and supplemental base station devices dynamically configure the bundled acknowledgment operation based on various desired operational attributes relating to the operational parameters of the network. 1. A method for receiving a wireless communication , comprising:receiving a transmission schedule from a first transmitter over a wireless interface;receiving a first data packet from the first transmitter over the wireless interface;receiving a second error correction data packet from a second transmitter over the wireless interface;decoding the received first data packet in conjunction with the second error correction data packet; andtransmitting an acknowledgement message.2. The method of claim 1 , wherein the acknowledgment message is directed to the first transmitter.3. The method of claim 1 , wherein the acknowledgment message is directed to the second transmitter.4. The method of claim 1 , wherein the first data packet is identified with a first identifier.5. The method of claim 4 , wherein the second error correction data packet is identified with the first identifier.6. The method of claim 5 , further comprising:soft combining the first data packet and second error correction data packet.7. The method of claim 1 , wherein the acknowledgment message indicates either a successful decoding or an unsuccessful decoding.8. The method of claim 7 ...

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20-02-2014 дата публикации

Method and Apparatus for Multi-User Data Transmission in Wireless Local Area Network

Номер: US20140050173A1
Принадлежит: Huawei Technologies Co Ltd

Embodiments of the present invention provide a method for data sending in a multi-user multiple-input multiple-output (MU-MIMO) system. The method includes: sending data to the primary user and the secondary user on the bandwidth on which the clear to send (CTS) sent by the primary user is received and a bandwidth on which the CTS sent by the secondary user is received. The bandwidth on which the request to send (RTS) is sent to the secondary user in this solution may be dynamically adjusted according to an available bandwidth of the primary user, so that sending of unnecessary RTSs on some secondary channels is avoided and send power of an AP and send power of a user are saved.

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20-02-2014 дата публикации

Terminal apparatus, base station apparatus, transmission method and reception method

Номер: US20140050182A1
Принадлежит: Panasonic Corp

Provided is a terminal apparatus in which, a transmission control unit ( 204 ) controls the transmission power of a sounding reference signal (SRS) by use of an offset value relative to the transmission power of a data signal, and a transmission unit ( 206 ) transmits the SRS by use of the transmission power as controlled. If a subframe to be used for transmitting the SRS is a predetermined subframe, the transmission control unit ( 204 ) uses a first offset value to control the transmission power of the SRS. Otherwise, the transmission control unit ( 204 ) uses a second offset value to control the transmission power of the SRS. The second offset value is an offset value that has been established so as to be transmitted to the serving cell of the terminal ( 200 ), and the first offset value is greater than the second offset value.

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20-02-2014 дата публикации

BASE STATION AND TERMINAL

Номер: US20140050189A1
Принадлежит: SHARP KABUSHIKI KAISHA

In a radio communication system in which a base station and a terminal communicate with each other, the base station is capable of efficiently notifying the terminal of control information. The base station sets monitoring of a second control channel in the terminal through RRC signaling that is higher-layer control information, the second control channel being transmitted using a second transmit port different from a first transmit port used for transmission of a first control channel. The base station transmits control information for the terminal by mapping the control information to the second control channel. The first transmit port is a transmit port used for transmission of a cell-specific reference signal that is a reference signal common within a cell, and the second transmit port is a transmit port used for transmission of a terminal-specific reference signal that is a reference signal specific to the terminal. 117.-. (canceled)18. A base station for communicating with a terminal in a cell , comprising:a transmission unit configured to transmit control information for the terminal on a second control channel that is transmitted using a second antenna port different from a first antenna port used for transmission of a first control channel, whereinthe first antenna port is an antenna port used for transmission of a cell-specific reference signal that is a reference signal specific to the cell, and the second antenna port is an antenna port used for transmission of a demodulation reference signal that is associated with the second control channel.19. The base station according to claim 18 , wherein the demodulation reference signal is generated based on an orthogonal code corresponding to the second antenna port claim 18 , and based on a pseudo-noise sequence generated based on identification information configured in the terminal through Radio Resource Control signaling.20. The base station according to claim 18 , wherein the second control channel is ...

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27-02-2014 дата публикации

CSI Reporting for a Set of CSI-RS Resources

Номер: US20140056156A1
Автор: George JÖNGREN
Принадлежит: Individual

A method implemented by a wireless terminal of reporting channel state information to a wireless communication network is disclosed. The wireless terminal receives reference symbols on a set of channel state information reference symbol (CSI-RS) resources, and determines a common transmission rank for the set of CSI-RS resources, based on the reference symbols received on a subset of those CSI-RS resources. The terminal then generates CSI feedback as a function of the common transmission rank, and transmits the CSI feedback to the communication network. The CSI feedback may include the common transmission rank itself, or may include different transmission ranks for different CSI-RS resources each determined as a function of the common transmission rank. A complementary method in which a network node uses such a CSI feedback to perform rank adaptation for the set of CSI-RS resources is also disclosed.

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13-03-2014 дата публикации

Enhanced performance multi-user multiple input output (mu-mimo) radio links

Номер: US20140072068A1
Принадлежит: Intel Corp

Technology is described for enhancing performance of multi-user multiple input multiple output (MU-MIMO) radio links. A system can include a scrambling module to scramble coded bits in codewords to be transmitted in a transmission. A modulation mapper can modulate the scrambled coded bits to generate modulation symbols in the transmission. A precoding module can precode modulation symbols for the transmission. A feedback module using a codebook with an increased number of codewords can be used to reduce a channel state information (CSI) quantization error in a transmission from a plurality of antennas coupled to the precoding module and configured to transmit the precoded transmission to multiple users.

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27-03-2014 дата публикации

TIMING SYNCHRONIZATION FOR DOWNLINK (DL) TRANSMISSIONS IN COORDINATED MULTIPOINT (CoMP) SYSTEMS

Номер: US20140086221A1
Принадлежит: Intel Corp

Technology for adjusting a receiver timing of a wireless device in a Coordinated MultiPoint (CoMP) system is disclosed. One method can include the wireless device receiving a plurality of node specific reference signals (RSs) from a plurality of cooperating nodes in a coordination set of the CoMP system. The coordination set includes at least two cooperating nodes. The wireless device can estimate a composite received RS timing from a plurality of received RS timings generated from the plurality of node specific RSs. The received RS timings represent timings from the at least two cooperating nodes. The wireless device can adjust the receiver timing based on the composite received RS timing. A node specific RS can include a channel-state information reference signal (CSI-RS).

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27-03-2014 дата публикации

METHOD, DEVICE, AND SYSTEM FOR COORDINATED MULTI-POINT TRANSMISSION/RECEPTION

Номер: US20140087784A1
Автор: Chen Lina, Lou Qunfang
Принадлежит: Huawei Technologies Co., Ltd.

A method, a device, and a system for coordinated multi-point transmission/reception are provided. The method includes: obtaining a reference signal received power RSRP of cells in a measurement set of a user equipment UE; determining a coordinated set of the UE according to the RSRPs; obtaining a post-processing SINR of the UE in the coordinated set and a post-processing SINR of the UE in a serving cell; determining that the post-processing SINR of the UE in the coordinated set is greater than the post-processing SINR in the serving cell; and performing coordinated multi-point transmission/reception for the UE. According to the method, the device, and the system provided by the embodiments of the present invention, an impact of an interference suppression gain on CoMP can be suppressed effectively, and the solution complexity can be reduced. 1. A method for CoMP coordinated multi-point transmission/reception , comprising:obtaining a reference signal received power RSRP of cells in a measurement set of a user equipment UE;determining a coordinated set of the UE according to the RSRPs;obtaining a post-processing SINR of the UE in the coordinated set and a post-processing SINR of the UE in a serving cell;determining that the post-processing SINR of the UE in the coordinated set is greater than the post-processing SINR in the serving cell; andperforming coordinated multi-point transmission/reception for the UE.2. The method according to claim 1 , further comprising:obtaining a difference between the post-processing SINR in the coordinated set and in the serving cell for the UE whose post-processing SINR in the coordinated set is greater than the post-processing SINR in the serving cell; andthe performing coordinated multi-point transmission/reception for the UE comprises:sorting the difference by size, and preferentially selecting a UE having a greater difference to perform coordinated multi-point transmission/reception.3. The method according to claim 1 , further ...

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01-01-2015 дата публикации

MOBILE COMMUNICATION SYSTEM, BASE STATION, CoMP CONTROL APPARATUS AND COMMUNICATION CONTROL METHOD

Номер: US20150003329A1
Автор: MORITA Kugo
Принадлежит:

In a mobile communication system in which a CoMP cooperating set and a user terminal perform communication therebetween, the CoMP cooperating set includes a main base station controlling CoMP communication with the user terminal, and the main base station comprises a receiver that receives user data addressed to the user terminal from a core network; a conversion unit that converts the user data received by the receiver to PDCP data unit to which a sequence number is added in a PDCP layer; and a transmission unit that transmits the PDCP data unit obtained by the conversion unit to another base station included in the CoMP cooperating set. 1. A mobile communication system in which a CoMP cooperating set and a user terminal perform communication therebetween , whereinthe CoMP cooperating set includes a main base station controlling CoMP communication with the user terminal, and a receiver that receives user data addressed to the user terminal from a core network;', 'a conversion unit that converts the user data received by the receiver to PDCP data unit to which a sequence number is added in a PDCP layer; and', 'a transmission unit that transmits the PDCP data unit obtained by the conversion unit to another base station included in the CoMP cooperating set., 'the main base station comprises'}2. The mobile communication system according to claim 1 , whereinwhen receiving the PDCP data, the other base station processes the PDCP data in a MAC layer without applying ARQ retransmission in a RLC layer.3. A mobile communication system in which a CoMP cooperating set and a user terminal perform communication therebetween claim 1 , comprising:a CoMP control apparatus, wherein a receiver that receives user data addressed to the user terminal from a core network;', 'a conversion unit that converts the user data received by the receiver to PDCP data unit to which a sequence number is added in a PDCP layer; and', 'a transmission unit that transmits the PDCP data unit obtained by ...

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01-01-2015 дата публикации

WIRELESS COMMUNICATION SYSTEM AND METHOD FOR CONTROLLING REPORTING SETTINGS

Номер: US20150003362A1
Принадлежит: NEC Corporation

A method for controlling reporting setting that enables reporting setting to be changed quickly in a system where CoMP transmission is performed, as well as a wireless communications system using the same are provided. In a wireless communications system based on a coordinated transmission scheme in which multiple transmission stations included in a network perform transmission in coordination with each other, the network notifies multiple pieces of reporting setting information for channel state information to a reception station that is a target of the coordinated transmission scheme, and the transmission stations and the reception station share reporting setting information to be applied among the multiple pieces of reporting setting information. 1. A wireless communication system based on a coordinated transmission scheme in which multiple transmission stations included in a network perform transmission in coordination with each other , whereinthe network notifies multiple pieces of reporting setting information for channel state information to a reception station that is a target of the coordinated transmission scheme, andthe transmission stations and the reception station share a piece of reporting setting information to be applied, of the multiple pieces of reporting setting information.2. The wireless communications system according to claim 1 , wherein each of the multiple pieces of reporting setting information includes at least information for specifying a different combination of transmission stations that includes at least one transmission station as a reporting target.3. The wireless communications system according to claim 1 , wherein each of the multiple pieces of reporting setting information further includes information for specifying a feedback method from the reception station to the network that corresponds to the different combination of transmission stations.4. The wireless communications system according to claim 1 , wherein there are ...

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