ОПРЕДЕЛЕНИЕ ПРОСТРАНСТВА ПОИСКА

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.

МЕТОД И УСТРОЙСТВО ДЛЯ ВРЕМЕННОЙ СИНХРОНИЗАЦИИ ВОСХОДЯЩЕЙ ЛИНИИ СВЯЗИ

Изобретение относится к области связи. Технический результат заключается в обеспечении возможности временной синхронизации восходящей линии связи. Такой результат достигается тем, что определяют, на основе информации о луче первого луча и информации эфемерид спутниковой базовой станции, номер кадра синхронизации восходящей линии связи первой соты, соответствующей первому лучу, определяют информацию тайминга первого терминального устройства в первой соте на основе номера кадра синхронизации восходящей линии связи первой соты, где информация тайминга используется для указания временного опережения или временного запаздывания, и выводят информацию тайминга. 10 н. и 18 з.п. ф-лы, 15 ил.

СПОСОБ И УСТРОЙСТВО ДЛЯ ПОЛУЧЕНИЯ ОПОРНОГО ВРЕМЕНИ ДЛЯ ОПРЕДЕЛЕНИЯ МЕСТОПОЛОЖЕНИЯ ОПОРНЫХ СИГНАЛОВ В БЕСПРОВОДНОЙ СЕТИ СВЯЗИ

Изобретение относится к управлению помехами в беспроводных сетях связи и, более конкретно, к поддержке сигнализации, связанной с глушением опорных сигналов (RS) для снижения помех в беспроводных сетях связи, которые осуществляют передачу опорных сигналов, например, для измерения местоположения. Техническим результатом является упрощение сигнализации, требующейся для того, чтобы управлять или обозначать схему глушения, использующуюся в интересующих сотах, обеспечивают преимущественную основу для распространения схем глушения среди сот (20), устранить потребность в предварительно определенных схемах глушения и потребность обнаружения глушения вслепую устройствами (14) беспроводной связи, такими как UE. Настоящее изобретение обеспечивает схему глушения для передач опорных сигналов в виде алгоритма, определенного, по меньшей мере, комбинацией из последовательности глушения и опорной точки. События глушения для данной соты (20) беспроводной сети связи таким образом разграничиваются от другой ...

ТЕРМИНАЛЬНОЕ УСТРОЙСТВО И СПОСОБ

Изобретение относится к области беспроводной связи. Техническим результатом является повышение эффективности передачи в системе радиосвязи. Упомянутый технический результат достигается тем, что передатчик может сообщать результат измерения разницы во времени на основе события, связанного с измерением разницы во времени, причем в том случае, если предварительно заданная длина временного интервала передачи (TTI) сконфигурирована, и, кроме того, в том случае, если результат измерения больше предварительно заданного порога, передатчик сообщает результат измерения на терминальное устройство. 2 н. и 2 з.п. ф-лы, 7 ил.

СПОСОБ И УСТРОЙСТВО ДЛЯ ОТСЛЕЖИВАНИЯ СООБЩЕНИЯ О СОГЛАСОВАНИИ ПО ВРЕМЕНИ КАНАЛА И ПОДДЕРЖИВАНИЯ СКАНИРОВАНИЯ КАНАЛА В СИСТЕМЕ ЦИФРОВОЙ МОБИЛЬНОЙ РАДИОСВЯЗИ

Изобретение относится к области радиосвязи. Техническим результатом является обеспечение возможности радиостанциям, функционирующим в прямом режиме, отслеживать согласование по времени канала и поддерживать сканирование канала. Упомянутый технический результат достигается тем, что не ведещая радиостанция, функционирующая на канале связи, определяет (610) период распространения, в течение которого согласование по времени канала должно распространяться от ведущей радиостанции к не ведещим радиостанциям, функционирующим на этом канале связи; не ведещая радиостанция реализует (620) первую схему сканирования в течение периода распространения для сканирования предназначенного для CT канала на предмет управляющего сообщения согласования по времени с сигналом согласования по времени, посылаемым от ведущей радиостанции; первая схема сканирования включает в себя сканирование предназначенного для CT канала во время каждого второго интервала сканирования и сканирование неприоритетных каналов и приоритетных ...

СПОСОБЫ И УСТРОЙСТВА В СИСТЕМЕ РАДИОСВЯЗИ

Изобретение относится к устройству для радиосвязи, в частности к способу и устройству для осуществления способа синхронизации связи разделенных на кадры данных через асинхронные базовые станции в системе сотовой связи. Техническим результатом является минимизация ошибки синхронизации между кадрами информации, которые посылаются к отдельной подвижной станции от двух или более асинхронных базовых станций или секторов, минимизация потребности буферизации в асинхронных базовых станциях при приеме кадров информации, а также минимизация среднего значения задержки прохождения сигнала туда и обратно, возникающей в системе связи МДКР в системах сотовой радиосвязи. Технический результат достигается путем генерации определенных состояний счетчика кадров системы в центральном узле в системе - узле управления радиосетью, присоединенном к одной или более базовым станциям, причем текущая выборка состояния счетчика кадров системы регулярно посылается из узла управления к присоединенным к нему базовым станциям ...

СИНХРОНИЗАЦИЯ ПО ВРЕМЕНИ, ПОДДЕРЖИВАЕМАЯ ПОДВИЖНОЙ СТАНЦИЕЙ, В СИСТЕМЕ СВЯЗИ CDMA

Изобретение относится к системе связи. В настоящем изобретении подчиненная базовая станция достигает синхронизации с опорной базовой станцией через сообщение, переданное от подвижной станции и принятое подвижной станцией в области мягкой эстафетной передачи между опорной базовой станцией и подчиненной базовой станцией. Сначала опорной базовой станцией измеряется двухсторонняя задержка прохождения сигнала между подвижной станцией и опорной базовой станцией. Когда подвижная станция захватывает сигнал от подчиненной базовой станции, она измеряет и сообщает разницу между величиной времени, которое требуется для прохождения сигнала от опорной базовой станции до нее, и величиной времени, которое требуется сигналу для прохождения от подчиненной базовой станции до нее. Последним необходимым измерением является измерение подчиненной базовой станцией разности времени между моментом времени, когда она получает сигнал обратного канала связи от подвижной станции, и моментом времени, когда она передает ...

СПОСОБ И СИСТЕМА ДЛЯ ТОЧНОЙ ТАКТОВОЙ СИНХРОНИЗАЦИИ ПОСРЕДСТВОМ ВЗАИМОДЕЙСТВИЯ МЕЖДУ УРОВНЯМИ И ПОДУРОВНЯМИ СВЯЗИ ДЛЯ СИСТЕМ СВЯЗИ

Изобретение относится к системам связи. Технический результат заключается в уменьшении задержки обработки пакетов. Временная синхронизация в системе беспроводной связи содержит передачу кадра синхронизации от передатчика на приемник по среде беспроводной связи. Кадр синхронизации включает в себя временную отметку, указывающую локальное время передатчика, когда символ в предварительно определенной позиции кадра синхронизации помещается в среду беспроводной связи для передачи. Кадр синхронизации принимается в приемнике, который определяет время приема, содержащее локальное время приемника, когда упомянутый символ кадра синхронизации был принят на физическом уровне приемника. Временная синхронизация выполняется посредством определения разности между упомянутой временной отметкой и упомянутым временем приема, и подстройки локального времени приемника на основе упомянутой разности, чтобы синхронизировать по времени приемник с передатчиком. 3 н. и 51 з.п. ф-лы, 8 ил., 1 табл.

БАЗОВАЯ СТАНЦИЯ, ПОЛЬЗОВАТЕЛЬСКОЕ ОБОРУДОВАНИЕ И СПОСОБ ПЕРЕДАЧИ

Изобретение относится к области беспроводной связи. Техническим результатом является обеспечение возможности сети 3GPP посылать в пользовательское оборудование эталонное время, отличное от эталонного времени, поддерживаемого самой сетью 3GPP. Терминал содержит: приемный блок, выполненный с возможностью приема из базовой станции информации о взаимосвязи для вычисления эталонного времени внешней системы; блок управления, выполненный с возможностью вычисления эталонного времени внешней системы на основании информации о взаимосвязи; и передающий блок, выполненный с возможностью передачи вычисленного эталонного времени в ведомое устройство во внешней системе, при этом информация о взаимосвязи указывает соответствие между эталонным временем системы 5G и эталонным временем внешней системы. 3 н. и 2 з.п. ф-лы, 10 ил.

СИНХРОНИЗАЦИЯ БАЗОВОЙ СТАНЦИИ В СИСТЕМЕ БЕСПРОВОДНОЙ СВЯЗИ

Изобретение относится к системам связи. Раскрывается способ синхронизации системы беспроводной связи. Длительность паузы для базовой станции определяется на основе времени, требуемого для получения или поддержания синхронизации соседней базовой станцией. Все передачи из базовой станции приостанавливаются на протяжении длительности паузы. Уровень многочисленных базовых станций может приостанавливать передачи в одно и то же время, тем самым подавляя помехи, что является техническим результатом. 4 н. и 72 з.п. ф-лы. 13 ил.

ТРАНСПОРТИРОВКА ИНФОРМАЦИИ ОБ УРОВНЕ СИНХРОНИЗАЦИИ

Изобретение относится к технике беспроводной связи и может быть использовано для самосинхронизации базовой станции Способ самосинхронизации несинхронизированной базовой станции заключается в том, что принимают информацию синхронизации от синхронизированной базовой станции и синхронизируются с синхронизированной базовой станцией, используя принятую информацию синхронизации, причем информацию синхронизации принимают через Объект Управления Мобильностью (ММЕ) и при этом информация синхронизации содержит информацию об уровне синхронизации. Технический результат - улучшение отношения уровня сигнала к уровню помех и шума для синхронизации. 4 н. и 31 з.п. ф-лы, 11 ил.

БАЗОВАЯ РАДИОСТАНЦИЯ

Изобретение относится к области беспроводной связи. Техническим результатом является обеспечение возможности базовой станции выдачи точного опорного времени пользовательскому устройству при применении разделения верхнего уровня. Упомянутый технический результат достигается тем, что узел gNB (200) включает в себя распределенный блок (gNB-DU) (230) узла gNB, осуществляющий связь с пользовательским устройством (UE) (100), и центральный блок (gNB-CU) (210) узла gNB, подключенный к gNB-DU (230) и осуществляющий связь с UE (100) через gNB-DU (230), при этом блок gNB-CU (210) включает в себя блок (211) передачи, передающий сигнал запроса gNB-DU (230), блок gNB-DU (230) включает в себя блок (233) приема, принимающий сигнал запроса, и блок (231) передачи, передающий gNB-CU (210) опорный системный номер кадра и опорное время в предварительно заданной сети, связанное с опорным системным номером кадра, на основе принятого сигнала запроса, блок (211) передачи gNB-CU (210) передает сообщение управления ...

ПОИСК СОТЫ УЗКОПОЛОСНОЙ БЕСПРОВОДНОЙ СВЯЗИ

Изобретение относится к беспроводной связи. Технический результат заключается в обеспечении энергоэффективного вхождения в синхронизм с сотой. Базовая станция осуществляет широковещательную передачу сигнала синхронизации, используя узкополосный участок полосы пропускания соты. Сигнал синхронизации включает в себя последовательность, повторяющуюся по нескольким периодам символа, используя код покрытия. Оборудование пользователя (UE), принимающее сигнал синхронизации, определяет информацию частоты и тайминга для соты посредством выполнения взвешенного сочетания и накопления процедур автокорреляции и взаимной корреляции низкой сложности над сигналом синхронизации. Процедуры корреляции с уменьшенной сложностью могут допускаться на основании использования кода покрытия и базовой последовательности. Взаимная корреляция может быть выполнена при нескольких частотах выборки. Использование кода покрытия внутри сигнала синхронизации поддерживает процедуры корреляции, использующие рекурсивные или повторяющиеся ...

СПОСОБЫ, ИСПОЛЬЗУЕМЫЕ НА УЗЛАХ УПРАВЛЕНИЯ, И СООТВЕТСТВУЮЩИЕ УЗЛЫ УПРАВЛЕНИЯ

Изобретение относится к области сетей беспроводной связи. Технический результат изобретения заключается в облегчении измерения межсетевой помехи между линиями связи, при этом повышая точность измерения помехи. Способ содержит этапы: передают (S2010) первые параметры, связанные с зондированием и считыванием первого узла управления, на второй узел управления, управляющий одной или более вторыми линиями связи, из двух или более вторых узлов радиосвязи во второй сети, соседствующей с первой сетью и работающей на той же частоте, что и первая сеть; принимают (S2020) от второго узла управления параметры, связанные с зондированием и считыванием, подлежащие применению к одной или более вторым линиям связи, которые отрегулированы на основании первых параметров, связанных с зондированием и считыванием, первого узла управления; регулируют (S2030) первые параметры, связанные с зондированием и считыванием, первого узла управления, на основании параметров, связанных с зондированием и считыванием, подлежащих ...

ИНДИКАТОР ВРЕМЕНИ СКАНИРОВАНИЯ ЛУЧА

Изобретение относится к передаче синхросигналов и, в частности, к так называемому свипированию лучом. В частности, настоящее изобретение относится к способам осуществления синхронизации с использованием синхронизирующих последовательностей, передаваемых в различные моменты времени. Настоящее изобретение относится также к соответствующим устройствам и компьютерным носителям. Способ, осуществляемый в узле сети связи, для передачи синхронизирующих последовательностей синхросигнала одному или более принимающим устройствам беспроводной связи, содержит определение множества синхронизирующих последовательностей, так что каждая синхронизирующая последовательность содержит соответствующую индикацию времени, в результате чего каждая синхронизирующая последовательность позволяет определять момент времени события в принимающем устройстве беспроводной связи; и передачу синхронизирующих последовательностей одному или более устройствам беспроводной связи в различные моменты времени. 6 н. и 22 з.п. ф-лы ...

УСТРОЙСТВО БАЗОВОЙ СТАНЦИИ, СИСТЕМА СВЯЗИ И СПОСОБ СИНХРОНИЗАЦИИ

... 1. Устройство базовой станции, которое осуществляет связь с другим устройством базовой станции посредством системы с разделением времени, при этом устройство базовой станции содержит:блок беспроводной связи, который осуществляет связь с другим устройством связи через беспроводную сеть;блок проводной связи, который осуществляет связь с другим устройством связи через проводную сеть;блок определения тайминга связи, который определяет тайминг связи сигнала связи, переданного блоком беспроводной связи; иблок коррекции тайминга связи, который корректирует тайминг связи, определенный блоком определения тайминга связи, причемесли блоку беспроводной связи не удается принять сигнал синхронизации от другого устройства базовой станции в заданный тайминг приема, блок проводной связи передает сигнал подтверждения состояния синхронизации для подтверждения состояния синхронизации между устройством базовой станции и другим устройством базовой станции, и принимает сигнал ответа состояния синхронизации, включающий ...

УСТРОЙСТВО УПРАВЛЕНИЯ СВЯЗЬЮ, СПОСОБ УПРАВЛЕНИЯ СВЯЗЬЮ И ТЕРМИНАЛ

ОБЕСПЕЧЕНИЕ МНОЖЕСТВА НУМЕРОЛОГИЙ В СЕТИ

Изобретение относится к способу для обеспечения множества нумерологий в сети. Технический результат изобретения заключается в возможности использования множества нумерологических сценариев, распределение основных параметров без чрезмерной нагрузки на широковещательный канал, чтобы UE могло быстро и однозначно узнать, какие нумерологии поддерживают в разных участках поддиапазонов несущей. Способ реализуется устройством пользователя (UE) и содержит этапы, на которых принимают (S110) системную информацию по широковещательному каналу с первой нумерологией; определяют (S120) первое пространство поиска из принятой системной информации, причем первое пространство поиска является общим пространством поиска; принимают (S130) дополнительную информацию, запланированную в первом пространстве поиска со второй нумерологией, отличающейся от первой нумерологии, при этом вторая нумерология указана в принятой системной информации, а дополнительная системная информация содержит ссылки на указанное или дополнительные ...

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

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.

СПОСОБ И УСТРОЙСТВО ДЛЯ ПЕРЕДАЧИ ИНФОРМАЦИИ

Изобретение относится к способу и устройству передачи информации. Технический результат заключается в обеспечении удовлетворения требований к передаче сигнала синхронизации с повышением разнообразия сервисов. Способ передачи информации включает: передачу сигнала синхронизации в соответствии с целевым набором нумерологии, который определен из множества наборов нумерологии; при этом сигнал синхронизации включает первичный сигнал синхронизации (PSS) и вторичный сигнал синхронизации (SSS), соответствующий PSS-сигналу. 4 н. и 20 з.п. ф-лы, 7 ил.

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

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, ...

ИЗМЕРЕНИЯ СИНХРОНИЗАЦИИ МОБИЛЬНОСТИ

Изобретение относится к беспроводной связи. Способ использования информации о синхронизации для измерений мобильности выполняется устройством беспроводной связи и содержит этапы, на которых: принимают указание выполнить измерения мобильности для набора пучков передачи, связанного с уникальной идентификационной информацией; проверяют, была ли уникальная идентификационная информация ранее сохранена устройством беспроводной связи; если устройство беспроводной связи ранее не сохраняло указанную уникальную идентификационную информацию, то осуществляют измерения мобильности для набора пучков передачи, с тем чтобы определить информацию о синхронизации для указанного набора пучков передачи; сохраняют уникальную идентификационную информацию и информацию о синхронизации из измерений мобильности. Технический результат заключается в улучшении управления измерениями мобильности. 3 н. и 11 з.п. ф-лы, 10 ил., 2 табл.

СПОСОБ ПЕРЕДАЧИ СООБЩЕНИЯ МАЯЧКА СИНХРОНИЗАЦИИ ПОСРЕДСТВОМ УСТРОЙСТВА NAN И УСТРОЙСТВО

СПОСОБ РАСПРЕДЕЛЕНИЯ РЕСУРСОВ, СЕТЕВОЕ УСТРОЙСТВО И ТЕРМИНАЛЬНОЕ УСТРОЙСТВО

УСТРОЙСТВО И СПОСОБ ДЛЯ ФОРМИРОВАНИЯ КАНАЛА СИНХРОНИЗАЦИИ В СИСТЕМЕ БЕСПРОВОДНОЙ СВЯЗИ

... 1. Устройство для передачи первичного канала синхронизации (P-SCH) в системе беспроводной связи, предусматривающей по меньшей мере два различных SCH, причем устройство содержит:генератор последовательностей, выполненный с возможностью формирования последовательности P-SCH согласно дополнительной информации, при этом дополнительная информация содержит по меньшей мере одно из информации о типе базовой станции (BS), информации о размере быстрого преобразования Фурье (FFT), информации о полосе пропускания (BW), групповой информации, информации о секторе и информации о типе несущей,модулятор, выполненный с возможностью модуляции последовательности P-SCH,блок отображения поднесущей, выполненный с возможностью отображения модулированной последовательности P-SCH в поднесущие в пределах заданного набора поднесущих, причем поднесущие, которые содержатся в наборе поднесущих, разделены одним интервалом поднесущей,модулятор с мультиплексированием с ортогональным частотным разделением (OFDM), выполненный ...

ПАРАЛЛЕЛЬНАЯ БЕСПРОВОДНАЯ СВЯЗЬ ПО ЛИЦЕНЗИРУЕМОМУ И НЕЛИЦЕНЗИРУЕМОМУ СПЕКТРАМ

ВЫБОР ИСТОЧНИКА СИНХРОНИЗАЦИИ УСТРОЙСТВО-УСТРОЙСТВО

ТЕХНОЛОГИИ ДЛЯ ВЫБОРА ТИПА СУБКАДРА ИЛИ ДЛЯ ПЕРЕМЕЖЕНИЯ СИГНАЛОВ ДЛЯ БЕСПРОВОДНОЙ СВЯЗИ ПО НЕЛИЦЕНЗИРОВАННОМУ СПЕКТРУ

ПОЛЬЗОВАТЕЛЬСКИЙ ТЕРМИНАЛ И СПОСОБ РАДИОСВЯЗИ

ОБНАРУЖЕНИЕ И ПЕРЕДАЧА СИГНАЛА СИНХРОНИЗАЦИИ ДЛЯ РАДИОСИСТЕМЫ

СПОСОБ И УСТРОЙСТВО ОТПРАВКИ СООБЩЕНИЯ СИНХРОНИЗАЦИИ КАНАЛА В СИСТЕМЕ ЦИФРОВОЙ МОБИЛЬНОЙ РАДИОСВЯЗИ

... 1. Способ автоматического переключения функций, связанных с ведущей радиостанцией, на другую радиостанцию, работающую в канале (101), содержащий этапы, при которых:принимают от ведущей радиостанции (106) по меньшей мере одной из множества других радиостанций (108-116), работающих в канале (101), связанный сигнал синхронизации через по меньшей мере одно управляющее сообщение синхронизации, причем по меньшей мере одна из множества других радиостанций (108-116) использует сигнал синхронизации для синхронизации передач, выполняемых в канале (101);принимают по меньшей мере одной из множества других радиостанций (108-116) указание того, что ведущая радиостанция (106) больше не может предоставлять управляющие сообщения синхронизации;принимают по меньшей мере одной из множества других радиостанций (108-116) значения для различных элементов, связанных по меньшей мере с одной другой радиостанцией из множества других радиостанций (108-116), по меньшей мере из одной другой радиостанции из множества ...

Synchronisation einer dienstanfordernden Vorrichtung und eines Zugangspunkts während einer Kanalumschaltung im Funkkommunikationswesen

Beispiele, die eine Synchronisation eines oder mehrerer Clients und eines Zugangspunkts, AP, während einer Kanalumschaltung im Funkkommunikationswesen betreffen, werden beschrieben. Eine Vorrichtung, die als ein AP eines Funknetzwerks agiert, sendet eine Kanalumschaltungsankündigung, CSA, auf einem ersten Kanal an jeden eines oder mehrerer Clients in dem Funknetzwerk (310). Der AP führt dann eine Kanalumschaltung von dem ersten Kanal zu einem zweiten Kanal aus (320). Der AP bestimmt auch, ob mindestens ein erster Client des einen oder der mehreren Clients zu dem zweiten Kanal umgeschaltet hat, durch ein Senden eines Unicast-Rahmens auf dem zweiten Kanal an den ersten Client (330).

ERMITTLUNG DER ORTSZEIT BEI DER FAHRZEUGZÜNDUNG

Ein System zur Aktualisierung von Fahrzeugzeitinformationen umfasst eine Kommunikationsvorrichtung, die so eingerichtet ist, dass sie drahtlos mit einem drahtlosen Netzwerk unter Verwendung eines Netzwerkkommunikationsprotokolls kommuniziert. Das System enthält auch eine Verarbeitungseinheit, die so eingerichtet ist, dass sie die Kommunikation zwischen dem Fahrzeug bewertet, um zu bestimmen, ob ein Zustand im Zusammenhang mit einem potenziellen lokalen Zeitverschiebungsfehler vorliegt, und auf der Grundlage der Bestimmung, dass der Zustand vorliegt, eine vom Kommunikationsprotokoll unterstützte Nachricht an das drahtlose Netzwerk überträgt. Die Nachricht ist so eingerichtet, dass das drahtlose Netzwerk aufgefordert wird, eine Antwortnachricht mit einer lokalen Zeitverschiebung zurückzusenden. Der Prozess ist auch so eingerichtet, dass ein lokaler Zeitdatensatz des Fahrzeugs auf der Grundlage der lokalen Zeitverschiebung aktualisiert wird.

RAHMENSYNCHRONISIERUNGSMECHANISMUS

Drahtloser Stereo-Hörer

Stereo-Kopfhörer oder Stereo-Ohrhörer können oft über eine drahtlose Punkt-zu-Punkt-Verbindung an eine Audiodatenquelle (Q) angeschlossen werden. Bei einem erfindungsgemäßen zweiteiligen drahtlosen Stereo-Kopfhörer oder Stereo-Ohrhörer mit zwei voneinander getrennten Hörern (H1, H2) baut nur der erste Hörer (H1) eine drahtlose Verbindung (F1) zur Audiodatenquelle auf. Der über die drahtlose Verbindung (F1) übertragene und an den ersten Hörer (H1) adressierte Audiodatenstrom wird auch vom anderen Hörer (H2) empfangen, und beide Hörer extrahieren ihren jeweiligen Anteil des abzuspielenden Audiosignals, z. B. den linken und rechten Audiokanal (L, R) eines Stereosignals, aus dem empfangenen Audiodatenstrom. Von beiden Hörern werden keine Audiodaten gesendet.

Making time-of-flight measurements in master/slave and ad hoc networks by evesdropping on messages

Wireless devices and base stations and methods of operating

Method of performing cell search in wireless communication system

Channel division

Private base stations

Communications device and method

Method of performing uplink synchronization in wireless communication system

Uplink timing recovery

Static Terminals

Synchronisation mechanism

Underwater transceiver device, underwater communication system and related communication method

The invention concerns an underwater transceiver device, communications system and method of communicating sensor data underwater. The transceiver device is connected to a sensor unit and wirelessly transmits a sensor value to another underwater device as data packets according to a timeslotted timing scheme. According to the invention, the transceiver further comprises means for wirelessly receiving data packets from other underwater devices, and means for adjusting the timing scheme based on data packets received so as to avoid simultaneous transmitting of underwater devices. The transceiver may receive a synchronisation order and a timeslot allocation from a master device monitoring unit. If a master device is not found, the transceiver may synchronise its timing scheme based on a packet received from another transceiver such that they each transmit in successive timeslots. The invention enables energy-efficient and robust communications between diving equipment gas tanks and a wrist-worn ...

Method of performing uplink synchronization in wireless communication system

A method of performing uplink synchronization in a wireless communication system, the method performed by a user equipment (UE) and comprising: transmitting a random access preamble from the UE to a network; receiving at the UE a random access response from the network, the random access response comprising a temporary UE identifier and a time alignment value for uplink synchronization with the network; starting a time alignment timer in the UE responsive to receiving of the time alignment value; determining whether contention resolution is successful by the UE; and stopping the time alignment timer in the UE if the contention resolution is not successful.

DC offset compensation

A method for estimating an unwanted component that a receiver introduces into a signal at a known frequency, the method comprising applying a frequency offset to a signal, which comprises a wanted component at the known frequency, to form an offset signal having a frequency spectrum in which the wanted component is not positioned at the known frequency, processing the offset signal in the receiver and estimating a component positioned at the known frequency in the frequency spectrum of the processed signal.

System for network discovery and synchronization

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for maintaining, by a cloud controller, data representing a topology of a network of nodes; receiving, at the cloud controller from the first group of nodes, one or more requests to connect to the network; selecting, by the cloud controller, a first node in the first group of nodes that sent the request; and generating, by the cloud controller, instructions configured to cause the first node to communicate a timestamp of the first node to each neighboring node of the first node and to cause each neighboring node to communicate the timestamp of the first node to each other neighboring nodes of the neighboring node; and sending the instructions to the first node, thereby synchronizing the nodes in the network to the timestamp of the first node.

Synchronisation signals

Synchronisation signals

A UE in a cellular communications network connected using a first Radio Access Technology (RAT) may utilise synchronisation signals from a second RAT to re-synchronise with the first radio access technology. Base stations for the first and second radio access technologies may be co-located, and synchronised in time and frequency. Information to enable decoding of the synchronisation signal may be transmitted via the first or second radio access technology. Preferably, the first RAT is Narrowband Internet of Things (NB-IoT), and the second RAT is Cat-M. A ReSynchroisation Signal (RSS) has been defined in the standards to assist Cat-M devices in quickly synchronizing with a serving cell. However, implementing an RSS signal in NB-IoT consumes too many radio resources to be practical. An embodiment describes an NB-IoT base station transmitting parameters to enable the UE to receive an RSS signal transmitted by a Cat-M base station. Full details of the Cat-M transmission may not be required, ...

Cellular telecommunications network

Method of performing uplink synchronization in wireless communication system

Method for assessing synchronization between a communication device and a remote time server

Synchronization for sidelink based on prioritization of synchronization signals

METHOD AND APPARATUS FOR TIMING MISALIGNMENT SIGNALLING

METHOD AND APPARATUS FOR TIMING MISALIGNMENT SIGNALLING

METHOD AND APPARATUS FOR TIMING MISALIGNMENT SIGNALLING

SYNCHRONIZATION OF TERMINALS IN A RADIO COMMUNICATION SYSTEM

SYSTEM AND PROCEDURE FOR CORRECTING THE CLOCK DRIFTING AND FOR MAINTAINING THE SYNCHRONISATION IN WIRELESS NETWORKS

EYEGLASSES WITH CHANGEABLE SCHLÄFEN, IN WHICH A DEVICE WITH BLUETOOTH ABILITY IS ACCOMMODATED

SYNCHRONISATION OF A TELECOMMUNICATIONS CONNECTION IN A MOBILE TELECOMMUNICATIONS ARRANGEMENT

Conveying hypotheses through resource selection of synchronization and broadcast channels

According to an aspect of the disclosure, a base station may convey the parameter information to the UE based on selection of particular resources to be used for transmission of synchronization signals, where the selected resources correspond to the particular parameter information. The UE may blindly detect the synchronization signals on various candidate resources and determine the parameter information based on the resources where the synchronization signals are detected. The apparatus may be a base station. In an aspect, the base station determines parameter information of one or more parameters. The base station selects, based on the parameter information, synchronization resources from a plurality of candidate resources for transmission of one or more synchronization signals, where the selected synchronization resources correspond to the parameter information. The base station transmits the one or more synchronization signals using the selected synchronization resources.

Wireless communication method, terminal device and network device

The present application provides a wireless communication method, a terminal device and a network device. In the method, the terminal device resides on a frequency point of a first SSB in a broadband carrier of a first cell, the broadband carrier of the first cell comprises a plurality of SSBs including the first SSB. The method comprises: the terminal device acquiring first system information broadcast by the network device from the first SSB, the first system information comprising first indication information, the first indication information indicating a frequency point position of each SSB of the plurality of SSBs other than the first SSB relative to the first SSB, and/or, an absolute frequency point position of each SSB of the plurality of SSBs other than the first SSB; the terminal device acquiring second system information broadcast by the network device from the first SSB, the second system information comprising configuration information, the configuration information instructing ...

Indication method, detection method and related device

Provided in an embodiment of the present application are an indication method, a detection method, and a related device. In the present application, a network device prevents a user equipment from performing a useless search in a frequency domain range in which a synchronization signal block (SSB) does not exist by means of indicating to the user equipment a frequency domain location of the SSB in a certain frequency domain range of the user equipment, thereby accelerating an initial search process of the user equipment, which then reduces power consumption during the initial search process and helps the user equipment to search for SSBs in different frequency domains across different operators.

Frequency point configuration method, network device, terminal device and computer storage medium

Disclosed are a frequency point configuration method, a network device, a terminal device and a computer storage medium. The method comprises: when adding target frequency point information to configuration information, using a segment number corresponding to a target frequency point and a corresponding radio frequency channel number (RFCN) of the target frequency point within a segment to indicate the target frequency point information.

Neighbor scanning in wireless local area networks

Compensating for drift in node device clocks, including crystal frequency drift in an advanced metering system mesh network, and network

Method and apparatus for tracking a channel timing message and supporting channel scanning in a digital mobile radio system

A method and apparatus for enabling a radio to track channel timing and support channel scanning. A non-leading radio operating (610) on a communications channel, determines a diffusion period during which channel timing is to be propagated from a leading radio to non-leading radios operating on the communications channel. The non-leading radio implements (620) a first scanning pattern during the diffusion period to scan a CT designated channel for a control timing message with a timing signal sent from the leading radio. The first scanning pattern involves scanning the CT designated channel during every other scan interval and scanning non-priority channels and priority channels during scan intervals not used on the CT designated channel.

A method & device for precision time-lock

Method and apparatus for time-aligning transmissions from multiple base stations in a CDMA communication system

Listen-before-talk reservation scheme for wireless communications over unlicensed spectrum

Methods and apparatuses are described in which an unlicensed spectrum is used for Long Term Evolution (LTE) communications. A first method includes synchronizing clear channel assessment (CCA) slots across a plurality of base stations to determine availability of an unlicensed spectrum for transmissions in a next transmission interval. A second method includes performing a CCA during one of a plurality of CCA slots synchronized across a plurality of evolved Node Bs (eNBs) to determine availability of unlicensed spectrum for transmissions in a next transmission interval.

Methods and devices operating with fine timing reference signals transmitted occasionally

Methods and devices enable fine synchronization related to a data transmission on a physical channel. A fine timing reference signal is occasionally transmitted to the data transmission recipient using one of time-frequency resources in a recipient-specific pattern.

Worker safety system

A network for connecting a plurality of network nodes includes a leader node and a plurality of follower nodes. The leader node transmits a sync message to the plurality of follower nodes indicating a beginning of a network interval, wherein the leader node and the plurality of follower nodes transmit information during a transmission period and do not transmit information during a sleep period of the network interval, and wherein during a predetermined time of the transmission period of the network interval each of the follower nodes that received the sync message transmit a message advertising one or more properties of the leader node. The network nodes are environmental sensing devices that are part of a worker safety system.

WIRELESS BASE STATION

A wireless base station system includes a phase-locked loop (PLL) and hold- over circuit linked to multiple frequency and time reference input connectors and a Global Positioning System (GPS) module having an antenna, and an output reference control circuit linked to the PLL and hold-over circuit and multiple frequency and time output connectors. The PLL and hold-over circuit can enable synchronization on either the GPS module or the multiple frequency and time references inputs. The output reference control circuit can generate frequency and timing reference signals for external equipment. The external equipment can include one or more wireless base stations.

EXTERNALLY SOURCED SYNCHRONIZED BEACON

A system and method for communicating on a network having multiple radios by substantially simultaneously transmitting a beacon signal from the radios. A broadcast signal is received substantially simultaneously by all of the radios and used to coordinate subsequent beacon signals. The broadcast signal may be from another of the same radios, or may be a broadcast signal from a television broadcast, global positioning system broadcast, or any other broadcast designed to reach several radios substantially simultaneously. The radios may normally operate by detecting another transmission and refraining from transmitting until the transmission has ceased. However, while transmitting synchronized beacon signals, the radios may broadcast simultaneously.

INTERFACE MANAGEMENT IN A WIRELESS COMMUNICATION SYSTEM USING SUBFRAME TIME REUSE

Interference that occurs during wireless communication may be managed by subframe time reuse. A method, apparatus amend medium of communication determines interfering subframe gating sequences. The transmission gating in a home access point is adjusted by determining a first gating sequence from a first unplanned access point. A second gating sequence is selected based on the first gating sequence, wherein the first and second gating sequences are non-interfering. Signals are transmitted according to the second gating sequence from a second unplanned access point to an associated access terminal.

SYNCHRONIZING A BASE STATION IN A WIRELESS COMMUNICATION SYSTEM

A method for synchronizing a wireless communication system is disclosed. A silence duration for a base station is determined based on the time required for a neighbor base station to obtain or maintain synchronization. All transmissions from the base station are ceased for the silence duration. Multiple base stations level may cease transmissions at the same time, thus mitigating interference.

IDENTIFYING A SYNCHRONIZATION MASTER FOR RADIO NODES

A radio node may calculate one or more performance metrics based on measured satellite signals, which are associated with a global positioning system, or wireless signals that are associated with a cellular-telephone network. Then, the radio node may determine, based on the one or more performance metrics, whether the radio node is a synchronization master in a cluster of radio nodes. When the radio node is the synchronization master, the radio node may provide information intended for a computer specifying that the radio node is the synchronization master and the one or more performance metrics. In response, the radio node may receive a synchronization request associated with another radio node in the cluster. Furthermore, the radio node may provide the synchronization information intended for the other radio node, where the synchronization information specifies time, frequency, and phase synchronization for at least the cluster.

COMMUNICATION SYSTEM AND SMALL-CELL BASE STATION

The present invention allows a difference between times at which downlink signals synchronously transmitted from a macro cell base station and a small cell base station, respectively, arrive at a communication terminal device to fall within a permissible range without being affected by a transmission delay in transmission cables or a propagation delay in wireless transmission paths of the base stations. A small cell base station is provided with a wireless transmission/reception unit that is connected to an antenna, a wireless communication control unit, a transmission cable that connects the wireless transmission/reception unit and the wireless communication control unit, and a downlink signal reception unit that receives downlink signals transmitted from the macro cell base station and the small cell base station, respectively. The small cell base station measures a reception timing difference between the downlink signals transmitted from the macro cell base station and the small cell ...

NR BROADCAST CHANNEL TRANSMISSION

The disclosure relates to a method performed by a wireless device, for receiving system information from a network node of a wireless communication system. The system information is received in a synchronization signal (SS) block of an SS burst set comprising at least one SS block. The system information is multiplexed with information providing a time index indicating which SS block of the SS burst set that is being received. The method comprises receiving (410) the information providing the time index, and receiving (430) the system information which comprises descrambling the system information using a scrambling sequence generated (420) based on the information providing the time index. The method also comprises determining (440) an accuracy of the information providing the time index, based on an error-detection code related to the received system information. The disclosure also relates to corresponding network node method and apparatus.

TIME SYNCHRONIZATION METHOD AND APPARATUS

Embodiments of the present application relate to the technical field of communications, and disclosed thereby are a time synchronization method and apparatus, which solve the problem in the existing technology wherein time synchronization cannot be implemented between terminals in scenarios in which a CU and DU are separated. The specific solution is as follows: a terminal UE receiving a system information block (SIB) sent by a distributed unit (DU), the SID being generated by the DU and the SIB containing time information, wherein the time information indicates a moment corresponding to sending a boundary of a system frame number (SFN) in which a system information (SI) window end boundary of the SIB is located, or indicates a moment corresponding to immediately sending a boundary of an SFN of an SI window end boundary of the SIB; and the UE processing the time information to obtain a time reference.

USER TERMINAL AND RADIO COMMUNICATION METHOD

In order to appropriately control communications using a plurality of cells including a cell to which numerology different from an existing LTE system is applied, a user terminal for communicating by using a plurality of cells including a first cell and a second cell is equipped with: a reception unit for receiving, from the first cell, information on synchronization between the first cell and the second cell and/or information on a synchronization signal block configuration in the second cell; and a control unit for controlling a connection operation to the second cell on the basis of the information on the synchronization and/or the information on the synchronization signal block configuration.

METHOD FOR SENDING SYNC BEACON MESSAGE BY NAN DEVICE, AND DEVICE

Embodiments of the present invention relate to the communications field, and provide a method for sending a sync beacon message by a NAN device, and a device, so as to resolve a problem of a sync beacon message conflict that occurs when the NAN device merges to a new cluster in a master role. The method is: when a first device in a first cluster receives first cluster information of a second cluster, if the first device determines to merge to the second cluster, sending a sync beacon message in the second cluster according to a role and a state of the first device in the first cluster. According to the embodiments of the present invention, after merging to a cluster, a NAN device determines whether to send a sync beacon frame.

TIME SYNCHRONIZATION SYSTEM AND TRANSMISSION APPARATUS

Provided is a system with which time synchronization can be realized for a plurality of devices that are disposed at positions where a GNSS signal cannot be received. A time synchronization system comprises: a reference time acquisition unit that acquires, on the basis of a wireless signal from a positioning satellite system, a first timing signal and time information corresponding to a timing indicated by the first timing signal; a modulation unit that is connected to wiring divided into a plurality of branches, and that generates, in synchronization with the first timing signal, a modulation signal containing the corresponding time information and transmits the modulation signal through the wiring; at least one demodulation unit that is connected to one of the branches of the wiring, and that demodulates the modulation signal propagating through the wiring; and at least one transmission unit that transmits, on the basis of a second timing signal acquired by the demodulation by one of ...

DIFFERENT NUMEROLOGY FOR SIGNAL TRANSMISSION

Methods, systems, and devices for wireless communication are described. Methods, systems, and devices provide for different tone spacing schemes for different channels. Methods, systems, and devices also provide for different tone spacing schemes for different stages of communication between a UE and a base station. The base station may indicate, to the UE, the tone spacing scheme in a control channel, a synchronization signal, or a reference signal and the tone spacing scheme may be selected by the base station from available tone spacing schemes for communication. Tone spacing schemes may also be referred to as numerologies.

ENABLING MULTIPLE NUMEROLOGIES IN A NETWORK

There is presented a method for enabling multiple numerologies in a network. The method is performed by a user equipment (UE), and comprises receiving (S110) system information in a first search space on a broadcast channel with a first numerology, determining (S120) a second search space from the received system information, and receiving (S130) further information in the second search space with a second numerology. A UE, a base station a computer program and a computer program device are also presented.

REFERENCE SIGNAL DESIGN

Certain aspects of the present disclosure relate to methods and apparatus for generating and communicating reference signals. Certain aspects provide a method for communicating reference signals. The method includes selecting a demodulation reference sequence (DMRS) of a plurality of DMRSs for transmission in a synchronization signal block (SSB) based on a half-frame in which the SSB is transmitted. The method further includes transmitting the selected DMRS in the SSB.

SYSTEMS, METHODS, AND DEVICES FOR SYNCHRONIZATION AND RESOURCE ALLOCATION FOR DEVICE-TO-DEVICE COMMUNICATION

A user equipment (UE) is configured to synchronize with an independent synchronization source (I-SS) based on a first synchronization signal received from the I-SS. The UE is configured to determine whether a received signal strength from the I-SS is below a threshold value. The UE is configured to, in response to determining that the I-SS is below the threshold value, transmit a second synchronization signal propagating synchronization information derived from the I-SS to one or more peer UEs out of range of the I-SS. The second synchronization signal comprises a device-to-device synchronization signal (D2DSS).

METERING RF LAN PROTOCOL AND CELL/NODE UTILIZATION AND MANAGEMENT

The present technology relates to protocols relative to utility meters associated with an open operational framework. More particularly, the present subject matter relates to protocol subject matter for advanced metering infrastructure, adaptable to various international standards, while economically supporting a 2-way mesh network solution in a wireless environment, such as for operating in a residential electricity meter field. The present subject matter supports meters within an ANSI standard C12.22/C12.19 system while economically supporting a 2-way mesh network solution in a wireless environment, such as for operating in a residential electricity meter field, all to permit cell-based adaptive insertion of C12.22 meters within an open framework. Cell isolation is provided through quasi-orthogonal sequences in a frequency hopping network. Additional features relate to real time clock distribution and recovery, uplink routing without requiring a routing table, and the handling of Beacon ...

POWER CONTROL OF DEVICE-TO-DEVICE SYNCHRONIZATION SIGNAL

A method and system for setting a power of a secondary device-to-device synchronization signal, SD2DSS, by a first wireless device to enable a second wireless device to synchronize timing of the second wireless device to a timing of the first wireless device are disclosed. According to one aspect, a method includes determining power of a first signal transmitted by the first wireless device, and setting the power of the SD2DSS based on the power of the first signal.

SYSTEMS, METHODS, AND DEVICES FOR SYNCHRONIZATION AND RESOURCE ALLOCATION FOR DEVICE-TO-DEVICE COMMUNICATION

A user equipment (UE) is configured to synchronize with an independent synchronization source (I-SS) based on a first synchronization signal received from the I-SS. The UE is configured to determine whether a received signal strength from the I-SS is below a threshold value. The UE is configured to, in response to determining that the I-SS is below the threshold value, transmit a second synchronization signal propagating synchronization information derived from the I-SS to one or more peer UEs out of range of the I-SS. The second synchronization signal comprises a device-to-device synchronization signal (D2DSS).

SYSTEMS AND METHODS FOR GUARANTEEING DELIVERY OF PUSHED DATA TO REMOTE CLIENTS

Systems and methods are provided, which provide for validation of message delivery utilizing push functionality. Such systems and methods expedite delivery of data while utilizing reliable periodic pull to validate message delivery by querying a group or groups of recipients. The invention may then receive responses from execution of periodic pull functionality and initiate known tasks or preconfigured actions in accordance with any particular response received or not received.

METHOD AND SYSTEM FOR SIGNALING IN A HETEROGENEOUS NETWORK

A method at a network element operating in a wireless network, wherein the network element is configured to transmit a default cell search signal at a default position in one or more subframes, the method comprising transmitting, by the network element, an auxiliary cell search signal in addition to the default cell search signal.

Traffic load control in a mesh network

The present technology relates to protocols relative to utility meters associated with an open operational framework. More particularly, the present subject matter relates to protocol subject matter for advanced metering infrastructure, adaptable to various international standards, while economically supporting a 2-way mesh network solution in a wireless environment, such as for operating in a residential electricity meter field. The present subject matter supports meters within an ANSI standard C12.22/C12.19 system while economically supporting a 2-way mesh network solution in a wireless environment, such as for operating in a residential electricity meter field, all to permit cell-based adaptive insertion of C12.22 meters within an open framework. Cell isolation is provided through quasi-orthogonal sequences in a frequency hopping network. Additional features relate to apparatus and methodology subject matters concerning Traffic Load Control in a Mesh Network.

System and method for synchronizing operations among a plurality of independently clocked digital data processing devices

A system is described for maintaining synchrony of operations among a plurality of devices having independent clocking arrangements. A task distribution device is to distribute tasks to a synchrony group comprising a plurality of devices to perform tasks distributed by the task distribution device in synchrony. The task distribution device distributes each task to synchrony group members over a network. Each task is associated with a time stamp that indicates a time, relative to a clock maintained by the task distribution device, at which synchrony group members are to execute the task. Each synchrony group member periodically obtains from the task distribution device an indication of current time indicated by its clock, determines a time differential between the task distribution device's clock and its respective clock and determines therefrom a time at which, according to its respective clock, the time stamp indicates that it is to execute the task.

Apparatus and method for synchronization between scanning interval and multicast interval in broadband wireless access system

Scanning cycle synchronization of a multicast service in a broadband wireless access system is provided. Multicast group information of a multicast group to which a Mobile Station (MS) belongs is received at the MS from an application server. A scanning cycle pattern and a scan offset of a multicast service corresponding to the multicast group are determined. A scanning cycle of the multicast is set according to the scanning cycle pattern and the scan offset. Scanning and reception of multicast data are performed according to the scanning cycle.

Air interface synchronization method, apparatus and system

An air interface synchronization method is provided. The method includes that: a home-eNodeB which is not synchronized with an eNodeB, intercepts a synchronization subframe transmitted from the eNodeB and/or the home-eNodeB which was already synchronized with the eNodeB, a synchronization reference base station is selected from the base station which transmits the intercepted synchronization subframe, wherein the synchronization subframe includes a special synchronization channel for broadcasting synchronization sequence; the synchronization sequence is obtained, which is broadcasted in the special synchronization channel of the synchronization subframe transmitted by the synchronization reference station, and the synchronization with the synchronization base station is performed according to the synchronization sequence. Also, an air interface synchronization system, an eNodeB and a home-eNodeB are provided. The problem in prior art that the source is wasted in the process of synchronization is solved according to the method, the system, the eNodeB and the home-eNodeB.

Sequence generating method for efficient detection and method for transmitting and receiving signals using the same

A sequence generation method for allowing a reception end to effectively detect a sequence used for a specific channel of an OFDM communication system, and a signal transmission/reception method using the same are disclosed. During the sequence generation, an index is selected from among the index set having the conjugate symmetry property between indexes, and a specific part corresponding to the frequency “0” is omitted from a transmitted signal. In addition, a reception end can calculate a cross-correlation value between a received (Rx) signal and each sequence using only one cross-correlation calculation based on the conjugate symmetry property.

Mobile communication system, mobile station apparatus, base station apparatus, and setting change method

In a mobile communication system, a base station apparatus stores setting change information which includes setup information that is changed in accordance with a prescribed event when the prescribed event occurs, timing information that specifies a timing for making a setting change, and trigger information that specifies an action based on which the base station apparatus and a mobile station apparatus compute the setting change timing for the base station apparatus and the mobile station apparatus, respectively; and transmits, in advance of occurrence of the prescribed event, the setting change information to the mobile station apparatus. When the action specified in the trigger information occurs, the mobile station apparatus and the base station apparatus each determine the setting change timing in accordance with the timing information and effect the setting change at the determined timing in accordance with the setup information.

Method and apparatus for determining timing information for cells

Techniques for determining timing information for cells are disclosed. A user equipment (UE) may communicate with a serving cell and may need to make measurements of other cells, e.g., to support positioning of the UE. Each cell may transmit reference signals based on its timing. Different cells may operate asynchronously or with unknown timing. The UE may send a request for measurement gaps to the serving cell and may include timing information in the request. The timing information may (directly or indirectly) convey relative timing between the serving cell and a reference cell. The serving cell may determine measurement gaps at the proper time for other cells based on the timing information from the UE and may avoid scheduling the UE for data transmission during the measurement gaps. The UE may make measurements of other cells during the measurement gaps, without losing any data from the serving cell.

System and method for synchronizing operations among a plurality of independently clocked digital data processing devices

A system is described for maintaining synchrony of operations among a plurality of devices having independent clocking arrangements. A task distribution device is to distribute tasks to a synchrony group comprising a plurality of devices to perform tasks distributed by the task distribution device in synchrony. The task distribution device distributes each task to synchrony group members over a network. Each task is associated with a time stamp that indicates a time, relative to a clock maintained by the task distribution device, at which synchrony group members are to execute the task. Each synchrony group member periodically obtains from the task distribution device an indication of current time indicated by its clock, determines a time differential between the task distribution device's clock and its respective clock and determines there from a time at which, according to its respective clock, the time stamp indicates that it is to execute the task.

Method and apparatus for adjusting signal transmission starting point of terminal in wireless network

Disclosed is a method for adjusting a transmission time point of at least one second terminal in a wireless network by a first terminal. In the method for adjusting a transmission time point of a terminal, a transmission time point of the second terminal is set, a first frame including information regarding the transmission time point is transmitted to the second terminal, a first response frame transmitted according to the transmission time point from the second terminal is received, and the transmission time point is adjusted according to an arrival time of the first response frame.

System and method for passively determining own position listening to wireless time synchronization communications

The system and method of the present invention provides a mobile node (e.g., target), such as an aircraft, vehicle or mobile piece of equipment, the ability to determine its own position by passively listening to wireless time synchronization communications, such as IEEE 1588 Precision Time Protocol (PTP) messages, exchanged between nodes over a wireless network.

Method and apparatus of configuring downlink timing and transmitting random access response in mobile communication system using carrier aggregation

A method of configuring downlink timings and transmitting a random access response message is provided for a random access procedure in a Long Term Evolution (LTE) system supporting carrier aggregation. The method for adjusting timing of a terminal in a wireless communication system supporting carrier aggregation of at least one carrier includes transmitting a Random Access Preamble to a base station, and receiving a Random Access Response with a Timing Advance Command (TAC) for commanding uplink timing adjustment from the base station, wherein the Random Access Response comprises information indicating a Timing Advance Group (TAG) to which the TAC is applied.

Method, System, and Apparatus for Coexistence of Plurality of Communication Technologies in Communication Device

A method and system for enabling coexistence of a plurality of communication technologies in a communication device is provided. The method includes determining a time offset between a first communication event of a first communication technology of the plurality of communication technologies and a second communication event of a second communication technology of the plurality of communication technologies. The method further includes altering a first communication state of one or more of the first communication technology and the second communication technology to a second communication state based on one or more of the time offset and a plurality of parameters of one or more of the first communication technology and the second communication technology.

Methods and apparatus to transmit and receive synchronization signal and system information in a wireless communication system

A base station transmits a plurality of primary synchronization channel (PSC) symbols to a mobile station in a slot of a subframe of a frame-based wireless communication system. The base station also transmits a plurality of secondary synchronization channel (SSC) symbols to the mobile station in the slot of the subframe. The mobile station determines a preferred receiver beam based on the plurality of received consecutive PSC symbols.

Method and System for Reduced System-Time Overhead Parameter Length Representation for Inter-Radio Access Technology Communication

A wireless access terminal, system and method for the wireless access terminal to synchronize to system times in a wireless communication system. A first timing hierarchy in a first wireless communication network is used to operate the wireless access terminal The lint wireless communication network has a first radio access technology. Operating with the first timing hierarchy includes determining a frame cycle for the first wireless communication network. The frame cycle has a frame cycle boundary. Broadcast parameters for a second wireless communication network having a second radio access technology different from the first radio access technology are received. The broadcast parameters include the system time of the second wireless communication network. The system time of second wireless communication network is aligned, from the perspective of the wireless access terminal, with the frame cycle boundary. The wireless access terminal engages in a communication session using the second wireless communication network.

Mobile station and transmission control method

A mobile station includes: a determining unit configured to make a determination as to whether uplink synchronization is established with a base station; a controller configured to determine a timing for providing notification of a start of data transmission to the base station based on a result of a determination; and a transmitting unit configured to provide the notification of the start of data transmission to the base station at the timing.

Method and System for Signaling in a Heterogeneous Network

A method at a network element operating in a wireless network, wherein the network element is configured to transmit a default cell search signal at a default position in one or more subframes, the method comprising transmitting, by the network element, an auxiliary cell search signal in addition to the default cell search signal.

System access method and apparatus of a narrowband terminal in a wireless communication system supporting wideband and narrowband terminals

A system access method of a narrowband terminal is provided for supporting both wideband and narrowband terminals in a cellular radio communication system. The method includes broadcasting a Shared CHannel (SCH) for a terminal to acquire system synchronization; transmitting a Low-end Master Information Block (L-MIB) including control information on an L-subframe configuration for supporting a second type terminal and a sub-band configuration of the L-subframe; transmitting a Low-end System Information Block (L-SIB) including information on downlink reception and uplink transmission of the second type terminal; and performing a random access procedure, when an attach request is received from one of the first type terminals and the second type terminals.

System and method for synchronizing operations among a plurality of independently clocked digital data processing devices

An audio information source interface that receives first audio information from an audio information source directly connected to the audio playback device; an ADC configured to sample the first audio information; a network interface configured to connect the audio playback device to a network and to receive packets from the network containing second audio information and playback timing information from a network audio information source; a DAC for generating an analog audio signal based on either the first or second audio information; an audio amplifier interconnected with the DAC and configured to amplify the audio signal; an audio reproduction device interface interconnected with the audio amplifier; and, a control module configured to receive commands via the network interface and to provide to the DAC one of the first or second audio information.

GROUP FORMATION WITHIN A SYNCHRONIZED HIERARCHY OF PEER-TO-PEER DEVICES

A system, apparatus and method for organizing devices in a peer-to-peer communication environment. A number of devices synchronize among themselves and select masters (or synchronization stations) to organize the devices into a hierarchy. Master devices have associated preference values reflecting their preference or suitability to be a master device, and broadcast synchronization frames to keep devices synchronized. When multiple devices in one or more hierarchies execute a common application or service, they form a private group to exchange or share data (e.g., play a game, transfer a file). All devices in the hierarchy maintain and advertise a public or default identifier of the hierarchy, and all devices in the private group maintain and advertise a private identifier specific to the group. Members of the group synchronize under a top group master (or root sync station), which synchronizes with a master that is part of the hierarchy. 1. A device for participating in a peer-to-peer network of multiple communication devices , the device comprising:a processor; a default identifier identifying a default hierarchy encompassing the multiple devices; and', 'a group identifier identifying a group hierarchy encompassing a subset of the multiple devices; and, 'a memory configured to store identifiers of one or more device hierarchies that comprise the device, includinga wireless transceiver for conducting wireless communications; broadcast the default identifier and the group identifier;', 'identify one or more sync stations, including a group root sync station, among the subset of the multiple devices;', 'synchronize with one of the one or more sync stations if the device is not selected as the group root sync station; and', 'if the device is selected as the group root sync station, synchronize with a default sync station in the default hierarchy., 'wherein the processor and the wireless transceiver are configured to2. The device of claim 1 , wherein the processor and ...

Synchronized wireless display devices

This disclosure relates to techniques for synchronizing playback of media data between a source device and one or more sink devices in a Wireless Display (WD) system. WD systems enable mobile devices to share a local display of the source device with remote sink devices. The techniques of this disclosure include a management procedure at the source device to select a universal queue size for the source device and the participating sink devices. The source device selects the universal queue size based at least on supported queue sizes of the source device and the sink devices. The media packets are then held in queues having the universal queue size at the source device and the sink devices. The uniform queue size combined with compensation for transmission delay enables each of the devices to begin processing the media packets at the same time.

Backoff snooze wake power consumption within single user, multiple user, multiple access, and/or MIMO wireless communications

Backoff snooze wake power consumption within single user, multiple user, multiple access, and/or MIMO wireless communications. If a communication (e.g., transmission) attempt fails (e.g., by a wireless station (STA), smart meter station (SMSTA), etc.), then a backoff snooze countdown may be performed before a subsequent communication is attempted. Also, if communication activity is detected on the communication medium, then such a backoff snooze countdown may be performed before monitoring the communication medium or a subsequent communication attempt is made. Such a backoff snooze countdown may be based on a codeword value (e.g., such as provided within a beacon received from an access point (AP)), and different respective backoff snooze countdowns may be made based on different respective codeword values. Such backoff snooze countdowns are performed outside of a restricted access window (RAW) in which only devices of a particular class (e.g., low-power, Z, etc.) have access to the communication medium.

PRECISE TIME SYNCHRONIZATION OF NETWORK SUBSCRIBERS

Simple and robust precise time synchronization of network subscribers is provided by a system having at least one head station with a satellite antenna and a receiving station receiving a satellite signal containing time information. Also included is a station clock having a network connection for the synchronization of the network subscribers using a real time network protocol. An electronic system, arranged in the head station or the station clock, receives the time information from the satellite signal. A bidirectional communication infrastructure connects the head station and the station clock. 17-. (canceled)8. A system for precise time synchronization of network subscribers of a network based on satellites , comprising:at least one head station having a satellite antenna and a receiving station connected to the satellite antenna receiving a satellite signal containing time information;a ground station having a network connection to the network subscribers and providing time synchronization using a real time network protocol;an electronic system, in one of the head station and the ground station, receiving the time information from the satellite signal; anda bidirectional communication infrastructure between the head station and the ground station.9. The system as claimed in claim 8 , wherein the communication infrastructure is an Ethernet infrastructure.10. The system as claimed in claim 8 , wherein the communication infrastructure is embodied as DSL infrastructure.11. The system as claimed in claim 10 , wherein the communication infrastructure has protocol mechanisms providing data security.12. The system as claimed in claim 11 , wherein the head station includes at least two satellite technologies providing at least two satellite signals that are correlatable.13. The system as claimed in claim 12 , wherein at least one satellite technology is orthogonally implemented in the head station.14. The system as claimed in claim 13 , wherein the head station is ...

System and method for synchronizing operations among a plurality of independently clocked digital data processing devices

In a network comprising at least a first zone player and a second zone player, a method comprising: receiving, at a user interface module, a command to establish a synchrony group, wherein the synchrony group comprises at least the first zone player and the second zone player; and displaying, at the user interface module, a list of information identifying a plurality of items queued for playback by the synchrony group, wherein (i) at least one of the items on the list has associated location data indicating the at least one item is located on a device attached to the local area network, and (ii) at least one other of the items on the list has associated location data indicating the at least one other item is located on a wide area network.

System and method for synchronizing operations among a plurality of independently clocked digital data processing devices

An audio processing device comprising: a network interface configured to connect the audio processing device to a network; an audio information channelization device connected to the network interface and configured to receive audio via the network interface; an audio reproduction device interface configured to output audio to a playback device; a user interface module interface configured to transmit, via the network interface to a user interface module, status information pertaining to the status of a synchrony group, wherein the audio processing device is a member of the synchrony group with at least one additional audio processing device.

Per-cell timing and/or frequency acquisition and their use on channel estimation in wireless networks

A method, an apparatus, and a computer program product for wireless communication are provided in which a system timing is estimated, derived from timing of one or more cells, a timing offset is determined for a plurality of cells relative to the estimated system timing, and signals received form the plurality of cells are processed using the timing offsets. In addition, a method, an apparatus, and a computer program product for wireless communication are provided in which a carrier frequency is estimated, derived from a frequency of one or more cells, a frequency offset is determined for a plurality of cells relative to the estimated system timing, and signals received form the plurality of cells are processed using the frequency offsets.

System and method for synchronizing operations among a plurality of independently clocked digital data processing devices

A plurality of zone players, including at least a first player and a second zone player, wherein the first zone player is designated as a master device of a synchrony group, a method comprising: determining, by the first zone player, that the second zone player should be designated as the master device of the synchrony group; instructing, by the first zone player, the second zone player to be designated as the master device of the synchrony group; and causing, at the first zone player, the first zone player to lose its designation as the master device of the synchrony group.

System and method for synchronizing operations among a plurality of independently clocked digital data processing devices

In a network comprising a plurality of zone players, including at least a first zone player and a second zone player, a method comprising: receiving, by the first zone player, first control information from a user interface module; based on the received first control information, transmitting, by the first zone player, second control information to the second zone player, wherein the second control information comprises (i) a network address of an audio information channelization device that provides audio information and playback timing information, and (ii) a multicast address that the audio information channelization device uses to broadcast audio information and playback timing information to the network; and playing, by the first zone player, the audio information in synchrony with the second zone player.

Scalable protocol for large wsns having low duty cycle end nodes

A method and system are described for providing a wireless sensor network between a main node and a plurality of nodes, the nodes associate with sensors. The method and system define communications channels over which the main node communicates with the nodes based on a channel hopping scheme pattern, and define at least one transfer channel that is dedicated to carrying transfer frames that are broadcast by the main node. The method and system configure non-attached nodes that are not attached to the network, to enter a connection session by tuning to the transfer channel to listen for a transfer message. The transfer message indicates a next communications channel. The method tunes the non-attached nodes to the next communications channel, listens for a beacon frame, and utilizes the beacon frame as a timing reference to enable the non-attached nodes to attach to the network.

Calibration mode

A communication device for communicating with a plurality of terminals via a series of frames, the communication device being configured to indicate to the terminals, at the commencement of a frame, that communication is to be suspended for the remainder of the frame in order for a calibration to be performed, and to perform said calibration during the remainder of the time allotted to that frame.

Coordination of self-optimization operations in a self organizing network

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.

Downlink resource scheduling

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.

Methods and apparatus for uplink timing alignment in system with large number of antennas

A mobile station is configured to perform a method for uplink timing alignment in a wireless network. The method includes receiving a first downlink synchronization signal from a base station on a first beam pair at a first time associated with a first propagation delay. The method also includes receiving a second downlink synchronization signal from the base station on a second beam pair at a second time associated with a second propagation delay. The method further includes determining a second timing advance for the second beam pair based on a known first timing advance for the first beam pair and a time difference between the first time and the second time.

METHOD AND APPARATUS OF IMPLEMENTING TIME SYNCHRONIZATION

The present invention discloses a method of time synchronization and a base station system. The base station system includes a main unit, at least one radio unit, and a transmission medium adapted to transmit information between the main unit and the at least one radio unit. The base station system further includes a clock synchronization server configured close to the side of the at least one radio unit or integrated with the at least one radio unit. The clock synchronization server is adapted to transmit synchronization data to the main unit through the transmission medium, so that the main unit performs configuration processing according to the synchronization data to implement time synchronization with the clock synchronization server. 1. A base station system , comprising:a main unit, at least one radio unit, and a transmission medium configured to transmit information between the main unit and the at least one radio unit,wherein the base station system further comprises a clock synchronization server, configured to transmit a first synchronization data from the clock synchronization server to the main unit through the transmission medium to enable the main unit to perform configuration processing according to the first synchronization data to implement time synchronization with the clock synchronization server, wherein the clock synchronization server is configured close to a side of the at least one radio unit or integrated with the at least one radio unit.2. The base station system according to claim 1 , wherein the transmission medium comprises an optical fiber.3. The base station system according to claim 2 , wherein the base station system further comprises a first optical adapter module coupled to the at least one radio unit and the clock synchronization server claim 2 , the first optical adapter module includes a first optical fiber interface coupled to the optical fiber claim 2 , and the first optical adapter module is configured to converge the first ...

TIME SYNCHRONISATION IN A SINGLE NETWORK

A method for synchronizing in time a plurality of transmitters (T-T) belonging to a single frequency network, the transmitters (T-T) being adapted to distribute a radio frequency signal over a territory, includes: identifying, for each transmitter of the plurality of transmitters (T-T), at least two transmitters (T-T TT) whose catchment area (B-B) includes at least one common catchment area (BBBB B), and associating the at least two transmitters (T-T TT) with a subset of transmitters (S S); identifying, within the subset of transmitters (S S), one reference transmitter (TX) and at least one secondary transmitter (TS); determining, for each secondary transmitter (TS), a respective time offset with respect to the reference transmitter (TX) on the basis of time references contained in the radio frequency signal transmitted by the reference transmitter (TX) and received by the secondary transmitter (TS); adjusting the transmission parameters of the secondary transmitter (TS) so as to keep the time offset constant. 11717. A method for synchronizing in time a plurality of transmitters (T-T) belonging to a single frequency network , said transmitters (T-T) being adapted to distribute a radio frequency signal over a territory , comprising the steps of:{'b': 1', '7', '1', '5', '6', '7', '1', '7', '12', '23', '34', '45', '67', '1', '5', '6', '7', '1', '2, 'identifying, for each transmitter of said plurality of transmitters (T-T), at least two transmitters (T-T; T,T) whose catchment area (B-B) includes at least one common catchment area (B,B,B,B; B), and associating said at least two transmitters (T-T; T,T) with a subset of transmitters (S; S);'}{'b': 1', '2, 'identifying, within said subset of transmitters (S; S), one reference transmitter (TX) and at least one secondary transmitter (TS);'}determining, for each secondary transmitter (TS), a respective time offset with respect to said reference transmitter (TX) on the basis of time references contained in said radio frequency ...

Multi-Processor Platform for Wireless Communication Terminal Having a Partitioned Protocol Stack

A multi-mode wireless communication device and multi-mode communication method are disclosed. The multi-mode device includes a first baseband co-processor configured to execute low-level stack operations of a first wireless communications protocol employed within a first wireless communications network. The device also includes a host baseband processor configured to execute a set of protocol stack operations of a second wireless communications protocol employed within a first wireless communications network and higher-level stack operations of the first wireless communications protocol. A data communication channel capable of carrying data received by the multi-mode wireless communication device from the first wireless communications network or sent by the multi-mode wireless communication device through the first wireless communications network is provided between at least the host baseband processor and the first baseband co-processor.

TANDEM SATELLITE FRAME SYNCHRONIZATION

Systems and methods are described synchronizing communications frames and their respective time slots for satellite communications architectures having multiple satellites in the same orbital slot in such a way that addresses inter-satellite inter-beam interference. In some embodiments, the first and second satellites communicate with a respective number of ground terminals (e.g., gateway and user terminals) according to first and second satellite time slots, respectively. The satellites maintain relative positions in their orbital slot to manifest a maximum path delay difference between first and second path delays, the first path delay being between the first ground terminals and the first satellite, and the second path delay being between the first ground terminals and the second satellite. A synchronization system can offset the first satellite time slots from the second satellite time slots as a function of the maximum path delay difference. 1. A satellite communications system comprising:a first satellite configured to relay first satellite communications for first ground terminals, the first communication synchronized according to first satellite time slots;a second satellite configured to relay second satellite communications for second ground terminals, the second satellite communications synchronized according to second satellite time slots,the first and second satellites configured to maintain relative positions in a single orbital slot to manifest a maximum path delay difference between first and second path delays, the first path delay being between the first ground terminals and the first satellite, and the second path delay being between the first ground terminals and the second satellite; anda synchronization system configured to offset the first satellite time slots from the second satellite time slots as a function of the maximum path delay difference.2. The system of claim 1 , wherein the synchronization system is configured to offset the first ...

SYSTEMS AND METHODS FOR SYNCHRONIZING BETWEEN AN IN-VIVO DEVICE AND A LOCALIZATION SYSTEM

An in-vivo device may allocate a sensing window in a work cycle for sensing and processing localization signals to determine the location/orientation of the in-vivo device. The in-vivo device may use a timing unit to schedule transmission of data frames and the sensing of the localization signals relative to a reference time embedded in work cycles. The timing unit may produce a clock signal based on which the in-vivo device may measure time specifics, which define the sensing window, relative to the reference time. A receiver may use data embedded in data frames to restore the clock signal and the reference time, and, from them, and using identical or similar time specifics, generate a synchronization signal for a localization signals source (LSS) to enable the LSS to generate localization signals in synchronization with the sensing windows. 1. A method for timing sensing of localization signals by an in-vivo device , the method comprising: (i) transmitting a data frame to a receiver, the data frame comprising data facilitating generation of a synchronization signal for a localization signals source by the receiver based on the clock pulse, the reference time, and on time specifics of the sensing time window;', '(ii) measuring time elapsing from the reference time by using the clock signal;', '(iii) sensing, based on the elapsed time, during a time period complying with the time specifics of the sensing time window, one or more localization signals externally transmitted by a localization signals source at times and for duration specified by the synchronization signal; and', 'producing localization data representative of the sensed localization signals., 'by an in-vivo device operating according to a sensing time window within a work cycle of the in-vivo device, the in-vivo device timing the work cycle using a clock signal and having defined within the work cycle a reference time, performing during the work cycle2. The method as in claim 1 , wherein the sensing ...

SYNCHRONIZATION DEVICE AND SYNCHRONIZATION METHOD

A synchronization device has a normal-signal generator, a reference-signal generator, and a phase difference detector. The normal-signal generator generates a normal signal whose timing is synchronized with a time signal from a satellite. The reference-signal generator generates a reference signal whose timing is synchronized with a received signal. The phase difference detector detects the phase difference between the reference signal and the normal signal. The normal-signal generator then controls the normal signal on the basis of the phase difference when the time signal cannot be obtained. 1. A synchronization device comprising:a normal-signal generator that generates a normal signal whose timing is synchronized with a time signal from a satellite;a reference-signal generator that generates a reference signal whose timing is synchronized with a received signal; anda phase difference detector that detects a phase difference between said reference signal and said normal signal;wherein said normal-signal generator, when said time signal cannot be obtained, controls said normal signal based on said phase difference.2. The synchronization device as set forth in claim 1 , wherein:said phase difference detector detects said phase difference in advance by statistically processing a phase of said reference signal and a phase of said normal signal while said time signal is being obtained; andwhen said time signal cannot be obtained, said normal-signal generator controls said normal signal such that the phase difference between said reference signal and said normal signal matches said phase difference that was detected in advance by said phase difference detector.3. The synchronization device as set forth in claim 1 , wherein said normal-signal generator: carries out statistical processing of a control signal used in control of said normal signal while said time signal is being obtained and holds the result; when in a state in which said time signal cannot be obtained ...

TRANSFER OF SYNCHRONIZATION IN A HYBRID GLOBAL NAVIGATION SATELLITE PACKET NETWORK SYSTEM

Networks, network devices and methods of synchronization using transfer of synchronization packets are provided. Some network devices are configured to use either a timing reference extracted based on GPS signals or an imported timing reference, as an operative time reference. A network device from which to import the time reference is selected and may be updated to meet a selection rule related to the quality of receiving the transfer of synchronization packets. 1. A network device comprising:a global position signal (GPS) receiver configured to receive GPS signals and to determine a time reference based on the received GPS signals;a switching part configured to communicate transfer of synchronization packets;an operative part configured to manage radio communication using an operative time reference; anda controller configured to switch the operative part between at least (i) a first mode, in which the operative part uses, as the operative time reference, the time reference determined by the GPS receiver and (ii) a second mode, in which the operative part uses the operative time reference determined using one or more imported time references, each of the imported time references being extracted from the transfer of synchronization packets communicated with a network device, the controller switching the operative part between the first mode and the second mode depending on a quality of the received GPS signals and a quality of communicating the transfer of synchronization packets by the switching part from each of at least one other network device, respectively.2. The network device of claim 1 , wherein the switching part is configured to process packets based on a priority associated to each packet claim 1 , the transfer of synchronization packets having the highest priority.3. The network device of claim 1 , wherein the controller is configuredto select a network device among the network devices from which the switching part communicates transfer of ...

APPARATUS AND METHOD FOR GENERATING SYNCHRONIZATION CHANNEL IN A WIRELESS COMMUNICATION SYSTEM

A Synchronization Channel (SCH) transmission method includes generating a Primary SCH (P-SCH) sequence according to supplementary information. The supplementary information includes at least one of Base Station (BS) type information, Fast Fourier Transform (FFT) size information, BandWidth (BW) information, group information, sector information, and carrier type information. The method also includes modulating the P-SCH sequence and mapping the modulated P-SCH sequence to subcarriers within a predefined subcarrier set. The subcarriers are included in the subcarrier set being spaced one subcarrier interval apart. The method further includes generating a P-SCH symbol by Orthogonal Frequency Division Multiplexing (OFDM)-modulating the P-SCH sequence mapped to the subcarriers, and transmitting the P-SCH symbol. 1. An apparatus for use in a base station in a wireless communication system , the apparatus comprising:a sequence generator configured to generate a preamble sequence based on a carrier configuration and a bandwidth;a modulator configured to modulate the preamble sequence;a subcarrier mapper configured to map the modulated preamble sequence to subcarriers within a predefined subcarrier set that is determined by a predefined rule; anda transmitter configured to transmit the preamble sequence, wherein the carrier configuration is one of a fully configured carrier which is a carrier for which all control channels including synchronization, broadcast, multicast and unicast control signaling are configured, and a partially configured carrier which is a downlink only carrier configured with control channels to support downlink transmission.2. The apparatus of claim 1 , wherein a length of the preamble sequence is equal to ‘216’.3. The apparatus of claim 2 , wherein the subcarriers in the predefined subcarrier set are spaced one subcarrier interval apart7. The apparatus of claim 6 , further comprising:an Orthogonal Frequency Division Multiplexing (OFDM) modulator ...

Sequence generating method for efficient detection and method for transmitting and receiving signals using the same

A sequence generation method for allowing a reception end to effectively detect a sequence used for a specific channel of an OFDM communication system, and a signal transmission/reception method using the same are disclosed. During the sequence generation, an index is selected from among the index set having the conjugate symmetry property between indexes, and a specific part corresponding to the frequency “0” is omitted from a transmitted signal. In addition, a reception end can calculate a cross-correlation value between a received (Rx) signal and each sequence using only one cross-correlation calculation based on the conjugate symmetry property.

METHOD AND DEVICE FOR TIME-SYNCHRONIZATION IN AD HOC NETWORK

A method and a device perform time-synchronization with an ad hoc network configured by a plurality of nodes. The method includes: transmitting a time-synchronization request frame including an address of one of the plurality of nodes which belong to the ad hoc network to one of the plurality of nodes having a function of receiving the time-synchronization request frame and transmitting a time-synchronization reply frame including time-synchronization information; receiving the time-synchronization reply frame including the time-synchronization information from one of the plurality of nodes which receive the time-synchronization request frame; and performing time-synchronization with one of the plurality of nodes using the time-synchronization information included in the time-synchronization reply frame. 1. A method for time synchronization between an ad hoc network which is configured by a plurality of time-synchronized nodes and a new node , the method comprising:transmitting a time-synchronization request frame including an address of one of the plurality of nodes which belong to the ad hoc network to one of the plurality of nodes having a function of receiving the time-synchronization request frame and transmitting a time-synchronization reply frame including time-synchronization information;receiving the time-synchronization reply frame including the time-synchronization information from one of the plurality of nodes which receive the time-synchronization request frame; andperforming time-synchronization with one of the plurality of nodes using the time-synchronization information included in the time-synchronization reply frame.2. A method for time synchronization between an ad hoc network which is configured by a plurality of time-synchronized nodes and a new node , the method comprising:receiving a message including an address of one of the plurality of nodes which belong to the ad hoc network from one of the plurality of nodes having a function of receiving ...

COMMUNICATING TIME INFORMATION IN A NETWORK TO ENABLE SYNCHRONIZATION

A first node in a network receives a timing packet containing time information, where the timing packet is originated by a time server. The first node then updates the time information in the timing packet to reflect a delay associated with communicating the timing packet over a network link. The first node then updates the time information in the timing packet to reflect the delay associated transfer of the timing packet through the node. The first node sends the timing packet with the updated time information to a second node to enable the second node to use the updated time information for synchronization of the second node. The process repeats across an arbitrary number of nodes to enable time alignment between the first node and final destination node. 1. A method comprising:receiving, at a first node in a network, a timing packet comprising time information, the timing packet being originated by a time server; a delay associated with communicating the timing packet to the first node over a network link to which the first node is connected; and', 'a delay experienced by the timing packet in transit through the first node determined using a local clock of the first node, the local clock of the first node having a lower accuracy than a clock associated with the time server; and, 'updating, by the first node, the time information in the timing packet to indicate a cumulative delay comprisingsending, by the first node, the timing packet with the updated time information to a second node to enable the second node to use the updated time information for synchronization of the second node.2. The method of claim 1 , wherein the time information in the received timing packet comprises information indicating a time at which the timing packet was originated by the time server.3. The method of claim 2 , wherein:the timing packet is received from a third node of the network; andthe time information in the received timing packet comprises information indicating a cumulative ...

Frame sync across multiple channels

Systems, methods, and devices synchronize data streams by hashing received data frames to generate a sequence of hash values, comparing the generated hash value sequence to a hash value sequence received in a control stream, and processing data frames when the hash value sequences match. A source device and multiple receiver devices may synchronize audio data encoded in data frames, applying a hash function to each data frame to generate a first sequence of hash values, transmitting the data frames on a first channel and the first sequence of hash values on a control channel, receiving the data frames and the first sequence of hash values in the receiver devices, applying the hash algorithm to received data frames to generate a second sequence of hash values, comparing the first and second sequences of hash values, and processing data frames when the first and second sequences of hash values match.

TRANSMITTER CIRCUIT, INTERFACE CIRCUIT, INFORMATION TERMINAL, INTERFACE METHOD, AND RECORDING MEDIUM

A signal received by an antenna () is inputted to an encoder () and to a discriminator (). The discriminator () measures a length of a non-communication interval and outputs flag setting information when the length of the non-communication interval is greater than or equal to a predetermined interval length. The encoder () discriminates a synchronization pattern length based on the flag setting information. Referring to the flag at a time of generating a serial transmission frame, the encoder () sets the synchronization pattern length to be a first value when the flag has not been set and sets the synchronization pattern length to be a second value greater than the first value when the flag has been set. The encoder () generates a serial transmission frame with a synchronization pattern of the synchronization pattern length which has been set. A line driver () outputs the generated serial transmission frame. 1. A transmitter circuit comprising:a non-communication interval measurer for measuring a length of a non-communication interval;a synchronization pattern length determiner for determining a synchronization pattern length based on the length of the non-communication interval measured by the non-communication interval measurer;a frame generator for generating a frame with a synchronization pattern of the synchronization pattern length determined by the synchronization pattern length determiner; anda frame transmitter for transmitting the frame generated by the frame generator after the non-communication interval.2. The transmitter circuit according to claim 1 , whereinthe synchronization pattern length determiner determines the synchronization pattern length so that the synchronization pattern length is longer as the non-communication interval increases.3. The transmitter circuit according to claim 1 , whereinthe synchronization pattern length determiner determines the synchronization pattern length to be a first pattern length when the length of the non- ...

Method and system for multiplexing low frequency clocks to reduce interface count

Embodiments of the present disclosure relate to a method and system for multiplexing the low frequency signals from at least one clock transmitter to at least one clock receiver to reduce interface count. The low frequency signals are multiplexed in a CLKMUX logic using selection signals. The selection signals are generated using system frame and system clocks. The multiplexed clock is received by the CLKDEMUX logic through an interface. The interface can be backplane connectors, PCB traces and cables. The CLKDEMUX logic dc-multiplexes the received clock and transmits to the SELECT LOGIC for selecting at least one low frequency clock. The SELECT LOGIC selects at least one low frequency clock based on the signals from a processor. The jitter attenuator filters jitter in the low frequency clock and the CLOCK SINK distributes system clocks to rest of system elements.

METHOD OF PERFORMING UPLINK SYNCHRONIZATION IN WIRELESS COMMUNICATION SYSTEM

A method of performing uplink synchronization in a wireless communication system includes transmitting a random access preamble which is randomly selected from a set of random access preambles, receiving a random access response, the random access response comprising a random access preamble identifier corresponding to the random access preamble and a time alignment value for uplink synchronization, starting a time alignment timer after applying the time alignment value, starting a contention resolution timer after receiving the random access response, wherein contention resolution is not successful when the contention resolution timer is expired, and stopping the time alignment timer when the contention resolution timer is expired. 1. A method of performing uplink synchronization in a wireless communication system , the method comprising:transmitting, by a user equipment (UE), a random access preamble;receiving, by the UE, a random access response, the random access response comprising a random access preamble identifier corresponding to the random access preamble;starting, by the UE, a time alignment timer after receiving the random access response; andstopping, by the UE, the time alignment timer when contention resolution is not successful.2. The method of claim 1 , wherein the random access response further comprises at least a temporary UE identifier or a time alignment value.3. The method of claim 1 , wherein the random access preamble is selected by the UE from a set of random access preambles.4. The method of claim 1 , further comprising:receiving, by the UE, an uplink radio resource assignment with the received random access response; andtransmitting, by the UE, a scheduled message using the uplink radio resource assignment.5. The method of claim 1 , further comprising:starting, by the UE, a contention resolution timer after receiving the random access response.6. The method of claim 5 , wherein the contention resolution is determined not successful if the ...

METHODS AND APPARATUS FOR TIMING SYNCHRONIZATION DURING A WIRELESS UPLINK RANDOM ACCESS PROCEDURE

Aspects generally relate to wireless communications and, more particularly, to methods, systems and apparatus for timing synchronization during a wireless uplink random access procedure. For example, certain aspects relate to a technique for receiving first timing advance information associated with uplink wireless communications with a base station (BS), transmitting a random access connection request message to the BS, receiving a random access response from the BS while the first timing advance information is within a valid time period, the random access response comprising second timing advance information associated with uplink wireless communications with the base station, determining, after receiving the random access response, that the valid time period for the first timing advance information has expired, and utilizing the second timing advance information for uplink communications with the BS after determining that the valid time period for the first timing advance information has expired. Numerous other aspects are provided. 1. A method of wireless communication by a user equipment (UE) , comprising:receiving first timing advance information associated with uplink wireless communications with a base station (BS);transmitting a random access connection request message to the BS;receiving a random access response from the BS while the first timing advance information is within a valid time period, the random access response comprising second timing advance information associated with uplink wireless communications with the BS;determining, after receiving the random access response, that the valid time period for the first timing advance information has expired;utilizing the second timing advance information for uplink communications with the BS after determining that the valid time period for the first timing advance information has expired;initiating a timer associated with the second timing advance information for a valid time period for the second timing ...

Minimizing the Impact of Self Synchronization on Wireless Communication Devices

A method for self synchronization by a base station is described. Network information is sent to a wireless communication device. The network information indicates a first time period. The first time period is a period of silence by the base station. Synchronization signals are monitored during the first time period. Monitoring synchronization signals includes not transmitting.

Low duty cycle network controller

Operating at least one low duty cycle (LDC) controller to maintain synchronization between the LDC controller and a plurality of LDC terminals operating over a communication network using only overhead channels of the network and conforming to the protocol and timing of said network, wherein synchronization between the LDC controller and the plurality of LDC terminals is maintained separately from the protocol and timing of the communication network, and enables the LDC controller to schedule power down and wake up of the plurality of LDC terminals for durations longer than allowable under the protocol and timing of the communication network.

Synchronizing a Base Station in a Wireless Communication System

A method for synchronizing a wireless communication system is disclosed. A silence duration for a base station is determined based on the time required for a neighbor base station to obtain or maintain synchronization. All transmissions from the base station are ceased for the silence duration. Multiple base stations level may cease transmissions at the same time, thus mitigating interference. 1. A method for synchronizing a wireless communication system , comprising:determining a stratum level of a base station, the stratum level corresponding to a number of base stations including a global timing source node and zero or more intermediate base stations between the base station and the global timing source node; andmonitoring for signals from at least one of a neighbor base station or the global timing source node during a time duration determined at least, in part, by the stratum level;receiving a network-wide global time from at least one neighbor base station or the global timing source node during the time duration.2. The method of claim 1 , wherein the monitoring comprises ceasing all transmissions for the time duration.3. The method of claim 1 , the wherein the monitoring occurs periodically every tracking period in the wireless communication system.3. The method of claim 2 , wherein the base station is a synchronous base station.4. The method of claim 1 , wherein the length of the time duration is based on the stratum level of the base station5. The method of claim 4 , wherein the time duration is of length n*T where n is the stratum level of the synchronous base station and T is the time required for a neighbor base station to obtain or maintain synchronization.6. The method of claim 1 , wherein the time duration is further based on a maximum error between a network-wide global time and an estimated network-wide time.7. The method of claim 6 , further comprising determining a starting time for the time duration based on the estimated network-wide time and ...

SYSTEMS AND METHODS FOR NETWORKED WEARABLE MEDICAL SENSORS

A medical sensor system comprises a gateway comprising a wideband receiver and a narrow band transmitter, the each gateway configured to receive a wideband positioning frame using the wideband receiver from one or more wearable sensors and to transmit acknowledgement frames using the narrow band transmitter that include timing and control data for use by the sensors to establish timing for transmission of the positioning frame; and at least one wearable sensor comprising a wideband transmitter and a narrow band receiver, the sensor configured to transmit a sensor data frame to the gateway using the wideband transmitter and to receive an acknowledgement frame from the gateway using the narrow band receiver, extract timing and control information from the frame, and adjust the timing and synchronization of the wideband transmitter using the timing and control information. 1a gateway comprising a wideband receiver and a narrow band transmitter, the each gateway configured to receive a wideband positioning frame using the wideband receiver from one or more wearable sensors and to transmit acknowledgement frames using the narrow band transmitter that include timing and control data for use by the sensors to establish timing for transmission of the positioning frame; andat least one wearable sensor comprising a wideband transmitter and a narrow band receiver, the sensor configured to transmit a sensor data frame to the gateway using the wideband transmitter and to receive an acknowledgement frame from the gateway using the narrow band receiver, extract timing and control information from the frame, and adjust the timing and synchronization of the wideband transmitter using the timing and control information.. A medical sensor system comprising: 1. Technical FieldThe embodiments described herein are related to wireless communication and in particular to systems and methods for medical sensors that can sense a plurality of vital signs and that can provide imaging within the ...

Mobile station, base station, communication system, and communication method

A mobile station which is provided with a switching unit which switches whether a mobile station should acquire, from a base station, a timing correction amount of an uplink transmission timing determined based on a downlink reception timing, and an uplink transmission timing determining unit which, when not acquiring the timing correction amount from the base station, sets the timing correction amount to zero or determines it in accordance with a value of a variable which is included in broadcast information transmitted by the base station.

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

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).

SYNCHRONIZATION DEVICE AND SYNCHRONIZATION METHOD

A first synchronization signal for synchronization with a synchronization signal source is acquired from a first signal source. A first signal synchronized with the synchronization signal source is generated based on the first synchronization signal. A second synchronization signal for synchronization with the synchronization signal source is acquired from a second signal source different from the first signal source. A second signal synchronized with the synchronization signal source is generated based on the second synchronization signal. A timing signal synchronized with the synchronization signal source is generated based on the first signal of a synchronization device. A phase difference between the timing signal and the second signal is output. An offset is set so that there is no phase difference between the timing signal and the second signal based on the phase difference. 1. A synchronization device comprising:a first signal acquisition unit which acquires a first synchronization signal for synchronization with a synchronization signal source from a first signal source and generates a first signal synchronized with the synchronization signal source based on the first synchronization signal;a second signal acquisition unit which acquires a second synchronization signal for synchronization with the synchronization signal source from a second signal source different from the first signal source and generates a second signal synchronized with the synchronization signal source based on the second synchronization signal;a timing signal generation unit which generates a timing signal synchronized with the synchronization signal source based on the first signal;a comparison unit which outputs a phase difference between the timing signal and the second signal; anda control unit which sets an offset for the timing signal generation unit so that there is no phase difference between the timing signal and the second signal based on the phase difference.2. The ...

Synchronization distribution in microwave backhaul networks

In some embodiments, a system comprises a clock, a root node, a radio channel network, and first and second child nodes. The clock may be configured to generate a clock signal. The root node may be configured to generate a first frame including a first payload and a first overhead and generate a second frame including a second payload and a second overhead. The first and second overheads may comprise a synchronization value based on the clock signal. The radio channel network may be in communication with the root node for transmitting the first and second frames. Each first and second child nodes may be configured to perform clock recovery including frequency synchronization using the synchronization value and a respective phase-lock loop.

Coding methods of communicating identifiers in peer discovery in a peer-to-peer network

Systems and methodologies are described that facilitate identifying peers based upon encoded signals during peer discovery in a peer to peer network. For example, direct signaling that partitions a time-frequency resource into a number of segments can be utilized to communicate an identifier within a peer discovery interval; thus, a particular segment selected for transmission can signal a portion of the identifier, while a remainder can be signaled based upon tones communicated within the selected segment. Moreover, a subset of symbols within the resource can be reserved (e.g., unused) to enable identifying and/or correcting timing offset. Further, signaling can be effectuated over a plurality of peer discovery intervals such that partial identifiers communicated during each of the peer discovery intervals can be linked (e.g., based upon overlapping bits and/or bloom filter information).

Method and device for determining synchronous cell

Embodiments of the invention relate to the field of wireless communications and particularly to a method of and apparatus for determining a synchronous cell so as to determine a synchronous cell of an extension carrier so that the extension carrier is available between the network and a user equipment. The method of determining a synchronous cell according to the invention includes: a network-side apparatus determining an extension carrier to be configured for a user equipment; and the network-side apparatus determining a synchronous cell of the extension carrier upon determining that the extension carrier is a synchronous extension carrier. The synchronous cell of the extension carrier can be determined so that the extension carrier is available between the network side and a user equipment to thereby improve the performance of the system.

CELL CONFIGURATION METHOD, SYNCHRONIZATION METHOD, USER EQUIPMENT, AND BASE STATION

Embodiments of the present invention disclose a cell configuration method, a method for implementing synchronization between a user equipment and a base station, a user equipment, and a base station. The cell configuration method includes: determining, by a first base station corresponding to a first cell, system information of a second cell; and notifying, by the first base station, a second base station corresponding to the second cell of the system information, so that the second base station sends and receives signals according to the system information. According to the solutions provided in the embodiments of the present invention, system information of a cell may be dynamically or semi-statically adjusted according to user equipment distribution and service distribution, so that network resources can be better provided for a user equipment that needs them, a capability of serving the user equipment is improved. 1. A method for implementing synchronization between a user equipment and a base station , comprising:determining configuration information of at least one reference signal (RS) resource group or port group; andsending the configuration information to a user equipment to facilitate synchronization between the user equipment and the base station according to the configuration information of the at least one RS resource group or port group.2. The method according to claim 1 , further comprising:determining first synchronization information to which the user equipment needs to make reference for receiving a physical downlink shared channel (PDSCH); andsending the first synchronization information to the user equipment, so that the user equipment determines, according to the first synchronization information, synchronization within the established synchronization required to receive data from the PDSCH.3. The method according to claim 2 , wherein the sending the first synchronization information to the user equipment comprises:sending downlink control ...

Downlink synchronization for non-terrestrial wireless communications

Methods, systems, and devices for wireless communications are described. A narrowband internet of things (NB-IoT) user equipment (UE) associated with a non-terrestrial wireless network may identify a first synchronization procedure that is specific to the non-terrestrial network and different from synchronization procedures specific to terrestrial networks. In some cases, the UE may identify a different channel raster or may receive an indication of a true frequency of operation of a narrowband cell in the non-terrestrial network. The UE may identify the narrowband cell associated with the non-terrestrial network and may synchronize with the network using the identified synchronization procedure.

Wearable alarm system incorporating phased-array radar water sensing

A safety system comprised of safety devices each worn by a caretaker and up to three people requiring minding, that alerts using color coded LED lights and audible tones when a monitored person is in danger. The device alerts if the person is beyond a preset distance, is close to or is in a body of water, or signals they are in trouble, using phased-array radar coupled with image processing. The phased-array radar allows the remote sensing of water in either daylight or night. The phased-array radar comprises multiple antenna elements including an independent antenna element phase shifter allowing beamsteering. The device scans an object using a preset beamsteering algorithm independent of movement. The multiple antenna elements and beamsteering improve image data accuracy which is then interpreted and correlated with a body of water characteristics. The phased-array radar is also used for caretaker-monitored person communications.

Playback Device

A system is described for maintaining synchrony of operations among a plurality of devices that have independent clocking arrangements. The system includes a task distribution device that distributes tasks to a synchrony group comprising a plurality of devices that are to perform the tasks distributed by the task distribution device in synchrony. The task distribution device distributes each task to the members of the synchrony group over a network. Each task is associated with a time stamp that indicates a time, relative to a clock maintained by the task distribution device, at which the members of the synchrony group are to execute the task. Each member of the synchrony group periodically obtains from the task distribution device an indication of the current time indicated by its clock, determines a time differential between the task distribution device's clock and its respective clock and determines therefrom a time at which, according to its respective clock, the time stamp indicates that it is to execute the task. 1. A first zone player comprising:a network interface that is configured to communicatively couple the first zone player to at least one data network;a local clock that is configured to provide a clock time of the first zone player;at least one processor;a tangible, non-transitory computer-readable medium; and receive, via the network interface, a request to engage in synchronous playback of audio content as part of a synchrony group comprising at least a second zone player that is communicatively coupled to the first zone player via the at least one data network;', exchange, via the network interface with a third zone player that is communicatively coupled to the first zone player via the at least one data network, timing information that facilitates time synchronization between at least the first zone player and the third zone player, wherein the third zone player is not a member of the synchrony group;', 'receive, via the network interface from the ...

Playback Device

A system is described for maintaining synchrony of operations among a plurality of devices that have independent clocking arrangements. The system includes a task distribution device that distributes tasks to a synchrony group comprising a plurality of devices that are to perform the tasks distributed by the task distribution device in synchrony. The task distribution device distributes each task to the members of the synchrony group over a network. Each task is associated with a time stamp that indicates a time, relative to a clock maintained by the task distribution device, at which the members of the synchrony group are to execute the task. Each member of the synchrony group periodically obtains from the task distribution device an indication of the current time indicated by its clock, determines a time differential between the task distribution device's clock and its respective clock and determines therefrom a time at which, according to its respective clock, the time stamp indicates that it is to execute the task. 1. A first zone player comprising:a network interface that is configured to communicatively couple the first zone player to at least one data network;at least one processor;a tangible, non-transitory computer-readable medium; and receiving, via the network interface, a request to engage in synchronous playback of audio content as part of a synchrony group that includes at least a second zone player that is communicatively coupled to the first zone player via the at least one data network;', detecting an indication that the first zone player is to operate in (a) one of a control-master mode or a control-slave mode for the synchrony group and (b) one of an audio-master mode or an audio-slave mode for the synchrony group; and', 'beginning to operate in the synchrony group in accordance with the indication;, 'after receiving the request to enter into the synchrony group, receive, via the network interface, first control information for the synchrony group ...

METHOD FOR PERFORMING MEASUREMENT

One disclosure of the present specification provides a method for performing measurement. The method may comprise the steps of: receiving measurement setting information and wireless resource setting information from a serving cell; and receiving setting information for a measurement interval if a frequency band of the serving cell and a frequency band of a neighboring cell belong to different inter-bands, wherein setting information for the measurement interval may indicate a setting in which the number of downlink (DL) subframes is 1 for 5 ms if the serving cell operates with a TDD UL-DL setting of 0 or 6. The method may comprise a step of performing measurement for reference signals from the serving cell and the neighboring cell during the measurement interval. 1. A method for performing measurement , the method comprising:receiving measurement configuration information and radio resource configuration information from a serving cell;receiving configuration information on a measurement period when a frequency band of the serving cell and a frequency band of a neighbor cell are different and correspond to inter-bands, the configuration information on the measurement period indicating a configuration in which there is one downlink subframe for 5 ms when the serving cell operates with TD UL-DL configuration 0 or 6; andperforming measurement for reference signals from the serving cell and the neighbor cell during the measurement period.2. The method of claim 1 , further comprising:receiving a system information block (SIB) comprising information on a TDD UL-DL configuration of the serving cell; andreceiving a downlink control channel comprising information on a changed TDD UL-DL configuration as the serving cell applies enhanced Interference Management and Traffic Adaptation (eIMTA).3. The method of claim 2 , wherein the configuration information on the measurement period indicates a configuration based on number of downlink subframes for 5 ms according to the ...

NETWORK CLOCK SYNCHRONIZATION

According to example embodiments of the present invention, predetermined patterns are inserted into data streams and exchanged between a master node and a slave node. By recognizing the patterns near the underlying interface of the physical layer, the master node and slave node can generate timestamps that exactly identify when the respective messages leaves and/or arrives at the physical layer. The slave clock can be synchronized to the master clock based on such timestamps. 1. A computer-implemented method comprising:inserting a first pattern into an outgoing data stream to be transmitted from a master node to a slave node;generating a first timestamp identifying when the first pattern is sent out from a physical layer of the master node; andgenerating a fourth timestamp identifying when a second pattern arrives at the physical layer of the master node, the second pattern being inserted in an incoming data stream transmitted from the slave node to the master node,wherein the first timestamp and the fourth timestamp are sent from the master node to the slave node for clock synchronization between the master node and the slave node.2. The method of claim 1 , wherein inserting the first pattern comprises:inserting the first pattern into the outgoing data stream in response to a synchronization message being sent from the master node to the slave node to initiate the clock synchronization; andremoving at least one block from an inter packet gap (IPG) in the outgoing data stream to compensate for a throughput cost caused by the inserting of the first pattern.3. The method of claim 1 , wherein inserting the first pattern comprises:inserting the first pattern into the outgoing data stream at a physical coding sub-layer (PCS) in the physical layer of the master node.4. The method of claim 1 , wherein forward error correction (FEC) is disabled in the physical layer of the master node claim 1 , and wherein inserting the first pattern comprises:determining a raw pattern such ...

TERMINAL AND METHOD FOR TRANSMITTING DEVICE TO DEVICE (D2D) SIGNAL FOR D2D COMMUNICATION IN WIRELESS ACCESS SYSTEM SUPPORTING D2D COMMUNICATION

Disclosed is a method for transmitting a device to device (D2D) signal for D2D communication by a D2D terminal in a wireless communication system. The method for transmitting the D2D signal may comprise the steps of: selecting a specific resource set on a D2D resource area configured for the D2D communication; and transmitting the D2D signal using at least one wireless resource corresponding to the particular resource set, wherein the D2D resource area includes a plurality of resource sets, and the plurality of resource sets are individually associated with different cells and correspond to different resource regions on a time domain. 1. A method for transmitting a Device-to-Device (D2D) signal by a first user equipment (UE) for D2D communication in a wireless communication system comprising:selecting a specific resource set in a D2D resource region configured for the D2D communication; andtransmitting the D2D signal using at least one radio resource corresponding to the specific resource set,wherein the D2D resource region includes a plurality of resource sets, andwherein the plurality of resource sets are associated with different cells to each other and correspond to different resource regions in a time domain.2. The method according to claim 1 , wherein:a configuration of the plurality of resource sets in the D2D resource region is determined according to identifiers of cells associated with the plurality of resource sets.3. The method according to claim 1 , wherein a configuration of the plurality of resource sets in the D2D resource region is contained in at least one of a system information block (SIB) claim 1 , UE-specific D2D control information claim 1 , or D2D group-specific D2D control information claim 1 , and is received from a base station (BS).4. The method according to claim 1 , wherein the selected specific resource set is a resource set associated with a cell having maximum reference signal received power (RSRP) from among cells related to the ...

Method and apparatus for performing synchronization for carrier without synchronization signal in wireless communication system

A method and apparatus for performing an uplink (UL) synchronization in a wireless communication system is provided. A user equipment (UE) configures at least one UL carrier in an UL-only spectrum, and performs UL synchronization on the at least one UL carrier. The UL synchronization on the at least one UL carrier may be performed by various methods.

Clock Source Determining Method and Apparatus

A clock source determining method and an apparatus are provided. The method includes: A session management network element receives a session request from a mobility management network element. The session request includes information about a network slice and a DNN, and the session request is used to request to create a session. The session management network element determines clock source information corresponding to both the information about the network slice and the DNN. The session management network element sends the clock source information to an access network device. The clock source information is used by the access network device to perform clock synchronization with a terminal device.

METHOD AND APPARATUS FOR PERFORMING SYNCHRONIZATION IN WIRELESS COMMUNICATION SYSTEM

A method for and apparatus for performing synchronization in a wireless communication system is provided. A wireless device receives information including a set of subframes in which a discovery signal or a synchronization signal is transmitted, and a muting pattern which is changed according to a downlink (DL)/uplink (UL) configuration of a corresponding cell; receives the discovery signal or the synchronization signal from a cell based on the information; and performs synchronization, wherein the information is indicated to cells via air interface from a source cell. 1. A method for performing synchronization in a wireless communication system , performed by wireless device , the method comprising:acquring information including a set of subframes in which a discovery signal or a synchronization signal is transmitted, and a muting pattern which is changed according to a downlink (DL)/uplink(UL) configuration of a corresponding cell;receiving the discovery signal or the synchronization signal from a cell based on the information; andperforming synchronization,wherein the information is indicated to cells via air interface from a source cell.2. The method of claim 1 , wherein the information further includes;a frequency list including frequencies about a first cell and a second cell,a priority list including priorities about the first cell and the second cell, ora synchronization source cell frequency indication to indicate the source cell, for performing synchronization of one or more cells including the cell.3. The method of claim 1 , wherein the information further includes;a stratum level including a number of hop nodes hops to convey the information from the source cell to a destination cell.4. The method of claim 1 , wherein the information further includes;the muting pattern having a silent subframe to control at least one of a subframe for the discovery signal or the synchronization signal of other cells.5. The method of claim 4 , wherein the information ...

PRECISION TIME PROTOCOL OVER CELLULAR

Methods, systems, and devices for wireless communication are described. A user equipment (UE) may obtain a timing synchronization signal from a base station over a cellular wireless communication link. The UE may configure, based at least in part on the timing synchronization signal, a timer function of the UE as a precision time protocol (PTP) server. The UE may configure a PTP announce message based on the timer function and, in some examples, one or more metrics of the cellular wireless communication link. The UE may transmit the PTP announce message over a local communication network. 1. A method for wireless communication , comprising:obtaining, by a user equipment (UE), a timing synchronization signal from a base station over a cellular wireless communication link;configuring, based at least in part on the timing synchronization signal, a timer function of the UE as a precision time protocol (PTP) server;configuring a PTP announce message based on the timer function; andtransmitting the PTP announce message over a local communication network.2. The method of claim 1 , further comprising:determining that no other PTP server exists on the local communication network; andconfiguring the timer function of the UE as a PTP server is in response to the determination.3. The method of claim 1 , wherein:configuring the PTP announce message comprises: setting a grandmaster priority of the UE to a priority value that is lower than a priority value associated with a second PTP server operating on the local communication network.4. The method of claim 1 , further comprising:providing a timing signal over the local communication network according to the timer function of the UE.5. The method of claim 1 , wherein:configuring the PTP announce message comprises: determining that at least one of one or more metrics of the cellular wireless communication link satisfies a threshold; andthe method further comprising configuring at least one of: a server accuracy field of the PTP ...

METHOD FOR TRANSMITTING SYNCHRONIZATION SIGNAL IN WIRELESS COMMUNICATION SYSTEM AND TERMINAL USING SAME METHOD

The present document relates to a method for performing a vehicle-to-X (V2X) transmission performed by a terminal supporting carrier aggregation (CA) of a plurality of carriers in a wireless communication system, wherein the method determines a first carrier to be used as a synchronization reference among the plurality of carriers and performs the V2X transmission on the basis of the determination, wherein at least one carrier of the carriers not used as the synchronization reference is a second carrier, and the terminal reduces the transmission power on the second carrier, maintains the transmission of a packet on the second carrier, or drops a packet on the second carrier. 1. A method for performing a vehicle-to-X (V2X) transmission in a wireless communication system , the method performed by a user equipment (UE) , which supports a carrier aggregations (CA) of a plurality of carriers , and comprising:determining a first carrier used for a synchronization reference among the plurality of carriers; andperforming the V2X transmission based on a determination,wherein at least one carrier, which is not used as the synchronization reference, is a second carrier, andwherein the UE reduces a transmission power on the second carrier, or maintains a transmission of a packet on the second carrier, or drops the packet on the second carrier.2. The method of claim 1 , wherein a channel busy ratio (CBR) is used as a criteria for reducing the transmission power or dropping the packet on the second carrier among the plurality of carriers.3. The method of claim 1 , wherein a ProSe per packet priority (PPPP) is used as a criteria for reducing the transmission power or dropping the packet on the second carrier among the plurality of carriers.4. The method of claim 1 , wherein a carrier other than the second carrier among carriers not used as the synchronization reference is a third carrier claim 1 ,wherein the UE transmits a Side Link Synchronization Signal (SLSS) on the third ...

Method and Apparatus for Synchronising a Location Network

Apparatus and methods are presented for synchronising a slave device signal to a reference timebase, in situations where the slave device lacks knowledge of the propagation delay for signals from the reference device, e.g. if the positions of one or both of the devices are unknown or classified, or the inter-device signal propagation distance is otherwise a-priori unknown. Reference signal propagation delay is determined using an exchange of signals between the devices, with each device using a differencing procedure for eliminating effects of receiver line bias and other hardware delays. In another aspect an exchange of signals between the devices is used to detect a time residual arising from an inaccurate propagation delay estimate. The synchronisation methods can be applied to a plurality of slave devices for providing a synchronised location network. In certain embodiments signals are transmitted wirelessly, while in other embodiments they are transmitted via a fixed line. 1. A method for synchronising a second signal generated and transmitted by a second device to a timebase of a first device , said method comprising the steps of:(i) said first device generating and transmitting a first signal comprising first time information indicating the time of transmission of said first signal according to the timebase of said first device; (a) receiving and interpreting said first signal;', '(b) generating and transmitting said second signal comprising second time information indicating the time of transmission of said second signal;', '(c) receiving and interpreting said second signal;', '(d) calculating a first time difference between said first time information and said second time information; and', '(e) adjusting the generation of said second signal according to said first time difference, thereby adjusting said second signal and said second time information;, '(ii) said second device (a) receiving and interpreting said first signal and the adjusted second signal ...

PAGING ON AN OPEN SPECTRUM

A method comprises transmitting, to a terminal (), at least one synchronization signal burst () in a time-limited channel access interval () of an open spectrum (). The method further comprises transmitting, to the terminal (), at least one paging signal () in the channel access interval () of the open spectrum (). 1. A method of operating a base station , comprising:transmitting, to a terminal, at least one synchronization signal burst in a time-limited channel access interval of an open spectrum, andtransmitting, to the terminal, at least one paging signal in the channel access interval of the open spectrum.2. A method of operating a terminal , comprising:implementing a first reception attempt for at least one synchronization signal burst on an open spectrum, andimplementing a second reception attempt for at least one paging signal-on the open spectrum,wherein the first reception attempt and the second reception attempt are implemented in a common, time-limited channel access interval of the open spectrum.3. The method of claim 2 , further comprising:depending on a first result of the first reception attempt: selectively activating a backoff for a further first reception attempt for the at least one synchronization signal burst and a further second reception attempt for the at least one paging signal.4. The method of claim 3 ,wherein the first reception attempt and the second reception attempt are implemented in accordance with a timing schedule of a discontinuous reception cycle of the terminal,wherein the method further comprises:depending on the first result and depending on the second result: selectively activating an OFF duration of the discontinuous reception cycle.5. The method of claim 4 ,wherein the OFF duration is activated at least if the first reception attempt-succeeds and the second reception attempt fails.6. The method of claim 3 ,wherein the backoff is activated if the first reception attempt fails,wherein the backoff is not activated if the first ...

METHODS FOR UNLICENSED RESOURCE SELECTION

Methods and apparatuses are described herein for accessing an unlicensed spectrum using portions of a carrier's bandwidth (BW). For example, a wireless transmit receive unit (WTRU) may access a serving cell through an initial bandwidth part (BWP). The WTRU may be configured with a plurality of BWPs within an unlicensed frequency spectrum. The WTRU may then determine any of at least one monitoring period and at least one offset per each BWP. The WTRU may then monitor the BWPs based on any of the at least one monitoring period and the at least one offset. The WTRU may receive at least one signal from the serving cell. The signal may be at least one of a downlink control information (DCI), a synchronization signal block (SSB), a reference signal, or a preamble. 1. A method for use in a wireless transmit receive unit (WTRU) , the method comprising:monitoring a plurality of bandwidth sub bands (BWSBs) in an unlicensed frequency spectrum to determine the availability of an uplink channel using any of a set of monitoring occasions per BWSB and at least one time offset per BWSB, wherein the monitoring occasions of said set occur repeatedly in time, the time offset being different per BWSB; andon condition the uplink channel is determined to be available in a monitored BWSB based on any of a monitoring occasion in the set of monitoring occasions and the at least one time offset, transmitting on the acquired monitored BWSB.2. The method of claim 1 , further comprising receiving by the WTRU a BWSB agnostic grant for an uplink (UL) transmission and transmitting the UL transmission on the acquired monitored BWSB.3. The method of claim 1 , further comprising receiving by the WTRU a BWSB agnostic grant for an UL transmission claim 1 , said receiving the BWSB agnostic grant triggering said monitoring of the plurality of BWSBs.4. The method of claim 3 , wherein the BWSB is according acquired based on said triggered monitoring and the UL transmission is transmitted on the acquired ...

Reference Synchronisation

A method at a first device for synchronising a first clock of the first device to a second clock of a second device, includes receiving a first message comprising an identifier from a third device; generating a first timestamp in dependence on the time at which the first message is received at the first device according to the first clock; receiving a second message from the second device comprising the identifier and a second timestamp, the second timestamp having been generated in dependence on the time at which the second device received the first message from the third device according to the second clock; and adjusting the first clock in dependence on a time difference between a time indicated by the first timestamp and a time indicated by the second timestamp. 1. A method at a first device for synchronising a first clock of the first device to a second clock of a second device , the method comprising:receiving a first message comprising an identifier from a third device;generating a first timestamp in dependence on the time at which the first message is received at the first device according to the first clock;receiving a second message from the second device comprising the identifier and a second timestamp, the second timestamp having been generated in dependence on the time at which the second device received the first message from the third device according to the second clock; andadjusting the first clock in dependence on a time difference between a time indicated by the first timestamp and a time indicated by the second timestamp.2. The method as claimed in claim 1 , further comprising the steps of:receiving a plurality of identifiers and storing each of the identifiers in memory;for each of the plurality of identifiers, storing in memory an associated timestamp indicating a time at which that identifier was received at the first device according to the first clock;in response to receiving the second message, searching the memory so as to identify a ...

DYNAMIC ALLOCATION OF WIRELESS PERSONAL AREA NETWORK RADIOS AMONG A PLURALITY OF RADIO ACCESS TECHNOLOGIES SUPPORTED BY A USER EQUIPMENT

In an embodiment, a user equipment (UE) is configured to operate in accordance with different wireless personal area network (WPAN) radio access technologies (RATs). The UE prioritizes a plurality of WPAN RATs supported by the UE, and dynamically allocates a plurality of shared WPAN radios to the plurality of WPAN RATs based on the prioritization. 1. A method of operating a user equipment (UE) that is configured to operate in accordance with different wireless personal area network (WPAN) radio access technologies (RATs) , comprising:prioritizing a plurality of WPAN RATs supported by the UE; anddynamically allocating a plurality of shared WPAN radios to the plurality of WPAN RATs based on the prioritizing.2. The method of claim 1 , wherein the prioritizing assigns a first priority to a first WPAN RAT and a second priority to a second WPAN RAT claim 1 , the first priority being higher than the second priority.3. The method of claim 2 , wherein the dynamically allocating allocates two or more of the plurality of shared WPAN radios to the first WPAN RAT.4. The method of claim 3 , wherein the dynamically allocating does not allocate any of the plurality of shared WPAN radios to the second WPAN RAT.5. The method of claim 3 , wherein the dynamically allocating allocates the two or more shared WPAN radios to the first WPAN RAT in accordance with a spatial diversity scheme.6. The method of claim 5 ,wherein the spatial diversity scheme uses the two or more shared WPAN radios as a Maximum Ratio Combiner (MRC) for receiving data traffic over a WPAN communication session, orwherein the spatial diversity scheme uses the two or more shared WPAN radios for transmitting data traffic by beamforming the same data traffic over the WPAN communication session, ora combination thereof.7. The method of claim 3 , wherein the dynamically allocating allocates the two or more shared WPAN radios to the first WPAN RAT in accordance with a spatial multiplexing scheme for transferring different ...

CHANNEL QUALITY INFORMATION FEEDBACK TECHNIQUES

Various embodiments are generally directed to improved channel quality information feedback techniques. In one embodiment, for example, an evolved node B (eNB) may comprise a processor circuit, a communication component for execution by the processor circuit to receive a channel quality index for a physical downlink shared channel (PDSCH), the channel quality index associated with a defined reference resource, and a selection component for execution by the processor circuit to select a modulation and coding scheme (MCS) for transmission over the PDSCH of user equipment (UE) data in one or more resource blocks, the selection component to compensate for a difference between a cell-specific reference signal (CRS) overhead of the defined reference resource and a CRS overhead of the one or more resource blocks when selecting the MCS. Other embodiments are described and claimed. 125-. (canceled)26. User equipment (UE) , comprising:a radio frequency (RF) receiver to receive a channel state information (CSI) reference signal (CSI-RS);circuitry coupled to the RF receiver, the circuitry to derive a channel quality indicator (CQI) index for a frequency band of an orthogonal frequency-division multiple access (OFDMA) wireless communication system, the circuitry to derive the CQI index based on the CSI-RS and a CSI reference resource of a shared wireless downlink channel, a first three orthogonal frequency-division multiplexing (OFDM) symbols of the CSI reference resource to be occupied by control signals; andan RF transmitter coupled to the circuitry, the RF transmitter to transmit electromagnetic signals representing the CQI index on a wireless uplink channel.27. The UE of claim 26 , the CQI index comprising CSI for a serving cell of the UE.28. The UE of claim 26 , the CSI reference resource defined in a frequency domain by a group of downlink physical resource blocks corresponding to the frequency band.29. The UE of claim 26 , the circuitry to derive the CQI index without ...

Method for effective pmtu discovery in vpn environment

Methods are directed towards initializing a path maximum transmission unit value for two gateways in communication via a network tunnel (e.g., VPN environment). The initialized path maximum transmission unit value is used in establishing the network tunnel of the two gateways. Methods are also directed towards synchronizing path maximum transmission unit values for the two gateways after the network tunnel has been established. These methods minimize the occurrence of dropped data packets arising from mismatched path maximum transmission unit value between the gateways.

Identifying a synchronization master for radio nodes

A radio node may calculate one or more performance metrics based on measured satellite signals, which are associated with a global positioning system, or wireless signals that are associated with a cellular-telephone network. Then, the radio node may determine, based on the one or more performance metrics, whether the radio node is a synchronization master in a cluster of radio nodes. When the radio node is the synchronization master, the radio node may provide information intended for a computer specifying that the radio node is the synchronization master and the one or more performance metrics. In response, the radio node may receive a synchronization request associated with another radio node in the cluster. Furthermore, the radio node may provide the synchronization information intended for the other radio node, where the synchronization information specifies time, frequency, and phase synchronization for at least the cluster.

METHODS AND ARRANGEMENTS FOR CONFIGURATION OF RADIO INTERFACE BASED SYNCHRONISATION

A method for configuration of radio interface based synchronisation comprises obtaining of hearability information and synchronisation ability information concerning a multitude of radio base stations. The hearability information comprises an identity of the radio base station, and experienced signal quality from and identities of other radio base stations. The synchronisation ability information comprises information about a quality of synchronisation obtainable by the radio base station. A radio interface based synchronisation configuration is created in dependence of the obtained information. The radio interface based synchronisation configuration comprises definitions of synchronisation links, which radio base stations are recommended to use for synchronisation purposes. Data defining the radio interface based synchronisation configuration is provided for transmission to the respective radio base stations. Methods for radio interface based synchronisation and for planning radio interface based synchronisation, as well as arrangements and software for performing the methods are also presented. 1. A method for configuration of radio interface based synchronisation , wherein said method comprises the steps of:obtaining hearability information and synchronisation ability information concerning a multitude of radio base stations; an identity of the radio base station under consideration, and', 'experienced signal quality of signals from other radio base stations of said multitude of radio base stations and identities of said other radio base stations of said multitude of radio base stations;, 'said hearability information comprises, for each radio base station of said multitude of radio base stations,'}said synchronisation ability information comprising, for each radio base station of said multitude of radio base stations, information about a quality of synchronisation, other than radio interface based synchronisation, obtainable by the radio base station under ...

SYNCHRONIZATION METHOD, SYNCHRONIZATION DEVICE AND SYNCHRONIZATION SOURCE

The embodiments of the invention provide a synchronization method, synchronization device and synchronization source. The synchronization method comprises: a synchronization device determines at least one synchronization source transmitting a synchronization signal; when the at least one synchronization source contains at least one first synchronization source, the synchronization device selects, according to a method of the at least one first synchronization source selecting a synchronization signal, a target synchronization source; wherein the at least one first synchronization source selects, according to a first method and a second method, the synchronization signal; the first method comprises selecting according to a first priority order the synchronization signal; the second method comprises selecting according to a second priority order the synchronization signal; the first priority order is an order of the synchronization signals sorted according to correspondence of the synchronization signals and a cellular network; and the second priority order is an order of the synchronization signals sorted according to correspondence of the synchronization signals and a satellite system; and the synchronization device synchronizes with the target synchronization source. The embodiments of the invention are compatible to a satellite system and a cellular network, and implement synchronization of a synchronization device. 1. A synchronization method , comprising:determining, by a synchronization device, at least one synchronization source for sending a synchronization signal;when the at least one synchronization source comprises at least one first synchronization source, selecting, by the synchronization device, a target synchronization source from the at least one first synchronization source based on a manner in which each first synchronization source selects the synchronization signal wherein the manner in which the first synchronization source selects the ...

SYNCHRONIZING INDOOR RADIO NODES

A communication technique for synchronizing a set of radio nodes is described. In this communication technique, the radio node arbitrates (e.g., using a precision time protocol or PTP) with the other radio nodes based on a selection technique to select a synchronization master in the set of radio nodes. This synchronization master may be selected to have a predefined performance based on a type of communication environment of the set of radio nodes. For example, the type of communication environment may include overlap between at least one of the radio nodes in the set of radio nodes and a macrocell in a cellular-telephone network, or may exclude overlap between the set of radio nodes and the macrocell. Moreover, the synchronization master may specify time, frequency, and phase synchronization for the set of radio nodes. Thus, when the synchronization master is different from the radio node, the radio node synchronizes with the synchronization master. 1. A radio node , comprising:one or more antenna nodes configured to couple to an antenna; and [ wherein the synchronization master specifies time, frequency, and phase synchronization for the set of radio nodes, and', 'wherein, during the selection technique, the synchronization master is selected to have a predefined performance based on a type of communication environment of the set of radio nodes; and, 'arbitrates with the other radio nodes based on a selection technique to select a synchronization master in the set of radio nodes,'}, 'when the synchronization master is different from the radio node, synchronizes with the synchronization master., 'an interface circuit, coupled to the one or more antenna nodes, which, during operation, communicates with other radio nodes in a set of radio nodes, which includes the radio node, in a cellular-telephone network, wherein, during operation, the radio node2. The radio node of claim 1 , wherein the set of radio nodes is located in an indoor venue.3. The radio node of claim ...

METHOD AND APPARATUS FOR TIME SYNCHRONIZATION IN DEVICE-TO-DEVICE COMMUNICATION

A method for matching time synchronization between UEs during Device-to-Device (hereinafter referred to as “D2D”) communication in a radio communication system without involving an Evolved Node B (ENB) is proposed. Using the proposed method, all the UEs can operate to match the time synchronization without malfunction in accordance with a synchronization signal of the ENB even if the UE inside an ENB area and the UE outside the ENB area coexist. 1. A method of a first user equipment (UE) , the method comprising:selecting a reference UE for synchronizing, if the first UE is out of a coverage of a base station;transmitting a first synchronization signal, if the reference UE is in the coverage of the base station,transmitting a second synchronization signal, if the reference UE is out of the coverage of the base station and a synchronization signal from the reference UE is part of synchronization signal sets for out of the coverage of the base station.2. The method of claim 1 , wherein the first synchronization signal is for in the coverage of the base station claim 1 , and the second synchronization signal is part of synchronization signal sets for out of the coverage of the base station.3. The method of claim 1 , if the reference UE is not selected claim 1 , transmitting the second synchronization signal.4. The method of claim 1 , wherein selecting the reference UE further comprises selecting a second UE in the coverage of the base station claim 1 , if the first UE receives the first synchronization signal transmitted from the second UE.5. The method of claim 4 , wherein selecting the reference UE further comprises selecting claim 4 , if the first UE does not receive the first synchronization signal transmitted from the second UE claim 4 , a third UE transmitting the first synchronization signal claim 4 , the third UE being out of the coverage of the base station.6. The method of claim 5 , wherein selecting the reference UE further comprises selecting a fourth UE ...

CARRIER FREQUENCY HANDLING IN CLUSTERS

There is provided mechanisms for carrier frequency handling in a cluster based communications network. According to one aspect there is provided a method performed by a wireless device camping on or served by a cluster head device associated with a cluster head carrier frequency. According to one aspect there is provided a method performed by a cluster head device associated with a cluster head carrier frequency. A corresponding wireless device, a corresponding cluster head device, and corresponding computer programs and computer program products are also provided. 16-. (canceled)7. A method for carrier frequency handling in a cluster based communications network , the method comprising:a cluster head device associated with a cluster head carrier frequency performing:acquiring a difference between the cluster head carrier frequency and a network node carrier frequency associated with a network node; anddetermining, for a wireless device camping on or served by the cluster head device, a frequency adjustment action out of at least two possible frequency adjustment actions based on the magnitude of the frequency difference.8. The method according to claim 7 , further comprising:performing a cell search and from the cell search detecting the network node so as to acquire the difference.9. The method according to claim 7 , further comprising:receiving an event report from the wireless device camping on or served by the cluster head device so as to acquire the difference.10. The method according to claim 7 , wherein a first frequency adjustment action comprises:determining a step change of the cluster head carrier frequency and a time instant for performing said change, wherein the step change is based on said difference.11. The method according to claim 7 , wherein a second frequency adjustment action comprises:gradually adjusting the cluster head carrier frequency towards the network node carrier frequency.12. (canceled)13. The method according to claim 11 , further ...

GENERATION OF TIMING PULSES BASED ON ACQUIRED SYNCHRONIZATION

A pulse-per-n-seconds signal may be generated at a wireless communication station to synchronize the internal hardware of the wireless communication station. 1. A method for wireless communication , comprising:acquiring, at a wireless base station, timing from a received signal;using the acquired timing to generate one or more count signals;selecting at least one signal of the one or more count signals; andadjusting at least one parameter of the at least one signal to generate a pulse-per-n-seconds signal, where n is an integer greater than or equal to one.2. The method of claim 1 , wherein the acquiring comprises deriving timing from an absolute time reference contained in the received signal.3. The method of claim 1 , wherein the acquiring comprises deriving timing from a feature of the received signal.4. The method of claim 3 , wherein the feature of the received signal comprises a repeated feature or multiple features.5. The method of claim 1 , wherein the received signal is a received via a wireless channel.6. The method of claim 1 , further comprising:generating a time error report, frequency error report, or both, based on the pulse-per-n-seconds signal; andusing the time error report, frequency error report, or both to control at least one oscillator.7. The method of claim 1 , wherein the adjusting at least one parameter comprises performing said adjusting using a programmable system.8. The method of claim 1 , wherein the adjusting includes adjusting one or more parameters selected from the group consisting of: a delay of the at least one signal claim 1 , a pulse duration of the at least one signal claim 1 , and a value of n of the pulse-per-n-seconds signal.9. The method of claim 1 , further comprising selecting one of the pulse-per-n-seconds signal to synchronize the one or more count signals or an external timing signal to use in synchronizing the one or more count signals.10. An apparatus for wireless communication claim 1 , comprising:means for ...

Method, device, and system for sending, receiving, and determining timing reference information

Embodiments of the present invention disclose a method, a device, and a system for sending, receiving, and determining timing reference information, and pertain to the communications field. The method for sending timing reference information includes: acquiring access time difference information reported by a mobile terminal; generating timing reference information according to the access time difference information, where the timing reference information includes identifier information of a timing reference cell; and sending the timing reference information to the mobile terminal. By technical means of determining one of two cells with different downlink channel timings as a timing reference cell and using the timing reference cell as a benchmark to feed back HARQ-ACK information, the present invention solves a timing problem encountered when a UE uses a same HS-DPCCH to jointly feed back two pieces of HARQ-ACK information of a serving cell and an assisting serving cell.

User Equipment, Radio Network Node and Methods for Managing Synchronization Signals

According to an embodiment a method is disclosed, performed by a radio network node (), for managing synchronization signals in a wireless communication network. The radio network node determines a first cell identity value for a non-cell defining, non-CD, synchronization signal, wherein the first cell identity value is determined as a function of a second cell identity value of a cell defining, CD, synchronization signal transmitted by the radio network node (). The radio network node configures the non-CD synchronization signal based on said determined first cell identity value; and transmits the non-CD synchronization signal as configured. 1. A method performed by a radio network node for managing synchronization signals in a wireless communication network , the method comprisingdetermining a first cell identity value for a non-cell defining, non-CD, synchronization signal, wherein the first cell identity value is determined as a function of a second cell identity value of a cell defining, CD, synchronization signal transmitted by the radio network node;configuring the non-CD synchronization signal based on said determined first cell identity value; andtransmitting the non-CD synchronization signal as configured.2. The method according to claim 1 , wherein the non-CD synchronization signal comprises a non-cell defining synchronization signal block claim 1 , non-CD-SSB claim 1 , and the CD synchronization signal comprises a cell defining synchronization signal block claim 1 , CD-SSB.3. The method according to claim 1 , wherein the first cell identity value comprises a first physical cell identity value and the second cell identity value comprises a second physical cell identity value.4. The method according to claim 1 , wherein determining the first cell identity value comprises computing the first cell identity value based on a cyclic shift associated to the CD-synchronization signal.5. The method according to claim 1 , wherein determining the first cell identity ...

D2D OPERATION METHOD OF TERMINAL IN WIRELESS COMMUNICATION SYSTEM, AND TERMINAL USING METHOD

Provided are a device to device (D2D) operation method of a terminal in a wireless communication system, and a terminal using the method. In the method, the terminal receives, from another terminal which is the object of a D2D operation, first information and performs the D2D operation on the basis of the first information, wherein the first information indicates a specific resource in which the other terminal cannot receive a signal transmitted from the terminal, and the terminal performs the D2D operation within the remaining resources excluding the specific resource. 115- (canceled)16. A method for transmitting a sidelink message in a wireless communication system , the method performed by a first user equipment (UE) configured to transmit the sidelink message and comprising:transmitting information to a second UE, wherein the information is related to a discontinuous reception (DRX) configuration which is used for a DRX operation performed by the second UE, andtransmitting the sidelink message to the second UE based on the information,wherein the DRX configuration is determined by the first UE, andwherein the first UE transmits the sidelink message using a transmission resource for which the second UE does not perform the DRX operation.17. The method of claim 16 , wherein based on the first UE receiving assistance information from the second UE claim 16 , the DRX configuration is determined by the first UE based on the assistance information.18. The method of claim 16 , wherein the transmission resource is selected by the first UE from among a plurality of resources except for a resource used for the DRX operation.19. The method of claim 16 , wherein the assistance information includes a desired DRX configuration of the second UE.20. The method of claim 19 , wherein the desired DRX configuration includes at least one of a desired DRX cycle and a desired DRX offset.21. The method of claim 16 , wherein the first UE is configured to transmit the sidelink message to ...

Playback Device

A system is described for maintaining synchrony of operations among a plurality of devices that have independent clocking arrangements. The system includes a task distribution device that distributes tasks to a synchrony group comprising a plurality of devices that are to perform the tasks distributed by the task distribution device in synchrony. The task distribution device distributes each task to the members of the synchrony group over a network. Each task is associated with a time stamp that indicates a time, relative to a clock maintained by the task distribution device, at which the members of the synchrony group are to execute the task. Each member of the synchrony group periodically obtains from the task distribution device an indication of the current time indicated by its clock, determines a time differential between the task distribution device's clock and its respective clock and determines therefrom a time at which, according to its respective clock, the time stamp indicates that it is to execute the task. 1. A computing device comprising:a network interface that is configured to provide an interconnection with at least one data network;a clock that is configured to provide a clock time of the computing device;at least one processor;a tangible, non-transitory computer-readable medium; and operating in a first mode in which the computing device is not serving as an audio information channel device for any synchrony group;', 'receiving an indication that the computing device is to begin serving as an audio information channel device for a synchrony group that comprises at least first and second zone players that are communicatively coupled with the computing device over an asynchronous local area network (LAN), wherein the computing device, the first zone player, and the second zone player each have a different respective clock time;', 'after receiving the indication, transitioning from the first mode to a second mode in which the computing device is ...

DATA OFFLOADING METHOD AND BASE STATION

Embodiments of the present invention provide a data offloading method and a base station. The method includes: sending, by a master base station, a first request message to a mobility management control node, where the first request message includes an address of a local gateway of a secondary base station, and the first request message is used to request to perform data offloading at the local gateway of the secondary base station; receiving, by the master base station, a first response message that is sent by the mobility management control node according to the first request message, where the first response message includes a first related identifier ID of the local gateway of the secondary base station, and the first related ID is used to indicate a first bearer according to which data offloading is performed at the local gateway of the secondary base station. 1. A base station , comprising:a transmitter, configured to send a first request message to a mobility management control node, wherein the first request message comprises an address of a local gateway of a secondary base station, and the first request message is used to request to perform data offloading at the local gateway of the secondary base station;a receiver, configured to receive a first response message that is sent by the mobility management control node according to the first request message sent by the first sending module, wherein the first response message comprises a first related identifier ID of the local gateway of the secondary base station, and the first related ID is used to indicate a first bearer according to which data offloading is performed at the local gateway of the secondary base station; andwherein the transmitter is further configured to send a second request message comprising the first related ID to the secondary base station according to the first response message received by the receiving module, to instruct the secondary base station to perform data offloading at the ...

SYNCHRONIZATION METHOD FOR A DEVICE-TO-DEVICE DISCOVERY AND/OR A DEVICE-TO-DEVICE COMMUNICATION, USER EQUIPMENT, AND SYNCHRONIZATION CONTROL UNIT

To attain a synchronization for a device-to-device discovery and/or a device-to-device communication, a user equipment determines whether it is enabled to transmit a synchronization signal () for the device-to-device discovery and/or the device-to-device communication The user equipment has a wireless interface configured for communication with a radio access network of a mobile communication network. The user equipment selectively transmits the synchronization signal () for the futflled device-to-device discovery and/or the device-to-device communication over the wireless interface to at least one further user equipment. 1. A synchronization method for a device-to-device discovery and/or a device-to-device communication , comprising:determining, by a user equipment, whether it is enabled to transmit a synchronization signal for the device-to-device discovery and/or the device-to-device communication, the user equipment having a wireless interface configured for communication with a radio access network of a mobile communication network, andselectively transmitting, by the user equipment, the synchronization signal for the device-to-device discovery and/or the device-to-device communication over the wireless interface to at least one further user equipment.2. The method of claim 1 , 'evaluating, by the user equipment, whether criteria stored at the user equipment are fulfilled,', 'wherein the determining compriseswherein the user equipment transmits the synchronization signal for the device-to-device discovery and/or the device-to-device communication depending on a result of the evaluating.3. The method of claim 2 ,wherein evaluating whether the criteria are fulfilled is performed as a fallback procedure when no base station of the mobile communication network is available for requesting, by the user equipment, authorization to transmit the synchronization signal for the device-to-device discovery and/or the device-to-device communication.4. The method of claim 2 , ...

SELECTION OF SYNCHRONIZATION STATIONS IN A PEER-TO-PEER NETWORK ENVIRONMENT

A system, apparatus and method for selecting one or more synchronization stations, or masters, in a peer-to-peer communication environment. Synchronization (or sync) stations broadcast periodic synchronization frames to advertise future availability windows, during which devices rendezvous for discovery and communication. Devices that can act as sync stations advertise preference values, which indicate their preference or suitability for the role. All devices execute the same algorithm to sort the preference values and identify a root sync station and any number of branch sync stations; leaf devices synchronize with the root or a branch sync station. This passive synchronization scheme allows individual devices to conserve power, because they need not actively discover other devices and services, and can power off their radios for periods of time without sacrificing discoverability. Synchronization and peer-to-peer communication as provided herein coexist with other device demands, such as Bluetooth® operations and infrastructure-based communications. 115-. (canceled)16. A network of peer communication devices , comprising:a branch synchronization station; anda root synchronization station configure to issue synchronization frames comprising a first sequence of availability windows, wherein the first sequence of availability windows is attended by the branch synchronization station;wherein the branch synchronization station is synchronized with the root synchronization station, and wherein the branch synchronization station is configured to issue synchronization frames identifying the first sequence of availability windows and a second sequence of availability windows.17. The network of claim 16 , wherein the root synchronization station is further configured to:attend an availability window of the first sequence;receive preference values of the branch synchronization station and a peer communication device of the network; andselect the root synchronization station ...

COMMUNICATIONS DEVICE AND METHOD

A communications device transmits/receives data from a mobile communications network including one or more network elements forming plural cells. Each cell is allocated a cell identifier. For each cell the network elements provide a wireless access interface providing plural communications resource elements across a frequency range of a first carrier, and divided in time into plural frames. The one or more network elements transmit in one or more of the frames a synchronization sequence, each synchronization sequence providing an indication of a cell identifier. A controller calculates an estimate of a cell identifier from the detected synchronization sequence, and uses the cell identifier to transmit/receive the data to/from the mobile communications network via the wireless access interface. A relative temporal location of the synchronization sequence within the frame provides the communications device with an indication of the cell identifier of the cell. 1. A communications device for transmitting data to or receiving data from a mobile communications network , the mobile communications network including one or more network elements , the one or more network elements forming a plurality of cells of the mobile communications network , each cell being allocated a cell identifier by the mobile communications network and for each cell the one or more network elements provide a wireless access interface for the communications device , the communications device comprising:a transmitter unit configured to transmit signals representing the data to the mobile communications network via the wireless access interface, anda receiver unit configured to receive signals representing the data from the mobile communications network via the wireless access interface, the wireless access interface providing a plurality of communications resource elements across a frequency range of a first carrier, and divided in time into a plurality of frames, the one or more network elements ...

Method for Sending Synchronization Signal by Relay Node, and Apparatus

A method for sending a synchronization signal in a relay system, and an apparatusthe method including receiving, by a relay node, synchronization signal information sent by a parent node through an air interface, where the synchronization signal information comprises at least one of a subcarrier spacing of a synchronization signal, information about an operating frequency band of the relay node, information about a physical broadcast channel of the relay node, a synchronization signal periodicity, or indication information of a synchronization signal obtaining manner, and sending, by the relay node, the synchronization signal based on the synchronization signal information.

ACCESSING A CELL UTILIZING A MULTIPLE BEAM NETWORK

Methods are disclosed which can be performed by a network node for sending to a wireless device a first synchronization signal and an associated information message, for synchronization of the wireless device with the network node. The network node and the wireless device operate in a wireless communications network. The network node sends the first synchronization signal in N OFDM symbols within a subframe, at least once in a time and frequency position in every one of the N OFDM symbols. N is equal or larger than 2. For each sending of the first synchronization signal, the network node sends an associated information message at a pre-defined time and frequency position in an OFDM symbol. The pre-defined time and frequency position is relative to the time and frequency position of the first synchronization signal. The associated information message is associated with the first synchronization signal. 1. A method performed by a network node for sending to a wireless device a primary synchronization signal (PSS) and an associated information message , for synchronization of the wireless device with the network node , the network node and the wireless device operating in a wireless communications network , the method comprising:sending the PPS in N orthogonal frequency division multiplexing (OFDM) symbols within a subframe, at least once in a time and frequency position in every one of the N OFDM symbols, wherein N is equal or larger than 2; and, 'sending a second synchronization signal (SSS) and an associated information message at pre-defined time and frequency positions in OFDM symbols, which pre-defined time and frequency positions are relative to the time and frequency position of the PSS, wherein the associated information message comprises an index, and wherein a subframe timing and the frame timing are obtainable by the wireless device by detecting the index, wherein the associated information message comprises an associated Physical Broadcast CHannel (PBCH) ...

METHOD AND APPARATUS FOR MEASURING RSRP IN MOBILE COMMUNICATION SYSTEM

A communication scheme and system for converging a 5generation (5G) communication system for supporting a data rate higher than that of a 4generation (4G) system with an internet of things (IoT) technology, and a method and apparatus therefor are provided. The applicable to intelligent services (e.g., smart home, smart building, smart city, smart car, connected car, health care, digital education, retail, and security and safety-related services) based on the 5G communication technology and the IoT-related technology. 1. A method of a base station of a communication system , the method comprising:transmitting measurement configuration information to a terminal; andreceiving measurement result information of synchronization signal blocks based on the measurement configuration information from the terminal,wherein the measurement configuration information comprises resource information of the synchronization signal blocks on which the terminal performs measurement including information on a number of measurement results.2. The method of claim 1 , wherein claim 1 , if the terminal is configured in a first measurement mode claim 1 , the measurement result information comprises a value obtained by averaging measurement results of at least one synchronization signal transmitted at the same time.3. The method of claim 1 , wherein claim 1 , if the terminal is configured in a second measurement mode claim 1 , the measurement result information comprises a measurement result of the synchronization signal blocks distinguished by time and frequency resources.4. The method of claim 1 , further comprising:transmitting measurement mode configuration-related information to the terminal.5. The method of claim 4 , wherein the measurement mode configuration-related information comprises information indicating a first measurement mode or a second measurement mode or information indicating whether a quasi-colocation (QCL) assumption is applied to at least one synchronization signal ...

Topology for a Wireless Modular Network

An activity monitoring system comprising a plurality of wireless units wherein a first wireless unit comprises a wireless transceiver to broadcast at least one timing signal; a second wireless unit comprises: a wireless transceiver to receive at least one signal; a monitoring device that generates monitoring data; a memory to store the monitoring data; a processor to synchronize a time with the corresponding monitoring data; and wherein the second wireless unit: processes the received timing signal from the first wireless unit; synchronizes the monitoring data with the timing signal resulting in a time-synchronized data stream. 1. An activity monitoring system comprising:a plurality of wireless units wherein 'a wireless transceiver to broadcast at least one timing signal;', 'a first wireless unit comprising a wireless transceiver to receive at least one signal;', 'a monitoring device that generates monitoring data;', 'a memory to store the monitoring data;', 'a processor to synchronize a time with the corresponding monitoring data; and, 'a second wireless unit comprising processes the received timing signal from the first wireless unit;', 'synchronizes the monitoring data with the timing signal resulting in a time-synchronized data stream., 'wherein the second wireless unit2. The activity monitoring system of claim 1 , wherein the monitoring device in the second wireless unit is a motion sensor.3. The activity monitoring system of claim 1 , wherein the monitoring device in the second wireless unit is a photo detector.4. The activity monitoring system of claim 1 , wherein the monitoring device in the second wireless unit is an infrared detector.5. The activity monitoring system of claim 1 , wherein the second wireless unit contains multiple and distinct monitoring devices.6. The activity monitoring system of claim 1 , wherein the first wireless unit is a mobile phone.7. The activity monitoring system of claim 1 , wherein the second wireless unit broadcasts a signal ...

METHOD FOR TRANSMITTING OR RECEIVING SIDELINK SYNCHRONIZATION SIGNAL IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR

The present disclosure provides a method for transmitting and receiving a sidelink synchronization signal (SLSS) in a wireless communication system. In detail, the method performed by a first terminal includes receiving configuration information related to the SLSS; receiving the SLSS from a second terminal; determining whether the received SLSS is an SLSS related to sidelink communication or an SLSS related to sidelink discovery based on the received configuration information; and transmitting the received SLSS when the received SLSS is the SLSS related to sidelink discovery. Through this, the method proposed in the present disclosure has the effect of reducing unnecessary battery consumption of the first terminal and minimizing interference in the terminals of the neighboring cell. 1. A method for transmitting and receiving a sidelink synchronization signal (SLSS) in a wireless communication system , the method performed by a first terminal comprising:receiving configuration information related to the SLSS;receiving the SLSS from a second terminal;determining whether the received SLSS is an SLSS related to sidelink communication or an SLSS related to sidelink discovery based on the received configuration information; andtransmitting the received SLSS when the received SLSS is the SLSS related to sidelink discovery.2. The method of claim 1 , wherein the configuration information related to the SLSS includes information on a time at which the SLSS is transmitted claim 1 , information on a resource to which the SLSS is transmitted claim 1 , and information on a type of the SLSS.3. The method of claim 2 , wherein the type of the SLSS represents the SLSS related to sidelink communication or the SLSS related to sidelink discovery.4. The method of claim 1 , wherein the configuration information related to the SLSS is received from a base station or from the second terminal.5. The method of claim 1 , wherein the first terminal is a terminal operating in a low power mode.6 ...

METHODS AND APPARATUS TO FACILITATE A SOFT IN-COVERAGE/OUT-OF-COVERAGE INDICATION FOR SIDELINK COMMUNICATIONS

Apparatus, methods, and computer-readable media for facilitating a soft in-coverage/out-of-coverage indication for sidelink communications are disclosed herein. An example method for wireless communication at a wireless device includes determining a coverage state with reference to a cell for a timing reference. In some examples, the coverage state may be determined from among a set of states including an in-coverage state, an out-of-coverage state, and at least one additional coverage state. The example method also includes broadcasting a state indicator based on the coverage state determined by the wireless device. 1. A method of wireless communication at a wireless device , comprising:determining a coverage state with reference to a cell for a timing reference for sidelink communication, wherein the coverage state is determined from among a set of states comprising an in-coverage state, an out-of-coverage state, and at least one additional coverage state; andbroadcasting a state indicator based on the coverage state determined by the wireless device.2. The method of claim 1 , wherein the at least one additional coverage state comprises at least one partial coverage state.3. The method of claim 1 , further comprising:broadcasting a sidelink synchronization signal (SLSS) associated with the state indicator, the SLSS comprising timing reference information; andproviding a sidelink identity (SLI) for the wireless device, wherein the SLI is based on a synchronization reference for the wireless device and the coverage state determined by the wireless device.4. The method of claim 1 , wherein the wireless device determines the coverage state based on at least a power measurement for at least one of a synchronization signal (SS) or a channel state information reference signal (CSI-RS) received from the cell.5. The method of claim 1 , wherein the wireless device determines the coverage state based on at least a number of visible beams for the cell and on which at least ...

METHODS AND APPARATUS TO FACILITATE BEAM-BASED SEQUENCE SPACES FOR SYNCHRONIZATION SIGNALS

Apparatus, methods, and computer-readable media for facilitating beam-based sequence spaces for synchronization signals are disclosed herein. An example method for wireless communication for a first device includes selecting a subset of synchronization signal block (SSB) occasions including SSB occasions within an SSB period, and wherein the subset of SSB occasions is associated with a pairing of a primary synchronization signal (PSS) and a secondary synchronization signal (SSS). The example method also includes transmitting an SSB using at least one SSB occasion from the subset of SSB occasions. An example method for wireless communication for a user equipment (UE) includes selecting a synchronization signal pairing associated with a pairing of a PSS and a SSS, wherein the synchronization signal pairing maps to a subset of SSB occasions including SSB occasions within an SSB period, and also includes monitoring for an SSB at each SSB occasion from the subset of SSB occasions. 1. A method of wireless communication for a first device , comprising:selecting a subset of synchronization signal block (SSB) occasions including SSB occasions within an SSB period, and wherein the subset of SSB occasions is associated with a pairing of a primary synchronization signal (PSS) and a secondary synchronization signal (SSS); andtransmitting an SSB using at least one SSB occasion from the subset of SSB occasions.2. The method of claim 1 , wherein a quantity of the SSB occasions included in the subset of SSB occasions is less than a maximum number of SSB occasions for a frequency band.3. The method of claim 1 , further comprising:transmitting an indication of the at least one SSB occasion from the subset of SSB occasions, wherein the indication is comprised in a system information block (SIB) or radio resource control (RRC) message.4. The method of claim 3 , wherein the indication is indicated with reference to the subset of SSB occasions.5. The method of claim 3 , wherein the ...