ДИНАМИЧЕСКОЕ БЕСПРЕРЫВНОЕ ИЗМЕНЕНИЕ РАЗМЕРОВ В ОПТИЧЕСКИХ ТРАНСПОРТНЫХ СЕТЯХ БЕЗ ПРЕРЫВАНИЯ ПЕРЕДАЧИ

Изобретение относится технике связи и может использоваться для управления динамическим изменением размеров в сетях транспортировки данных без прерывания передачи. Технический результат состоит в повышении пропускной способности передачи. Для этого сетевое соединение содержит М компонентных интервалов, определенных в области полезной нагрузки схемы транспортировки более высокого порядка сети транспортировки данных, и способ содержит этапы, на которых принимают сигнал управления изменением размера соединения в каждом из узлов маршрута сетевого соединения; добавления в каждом узле маршрута сетевого соединения, в ответ на сигнал управления изменением размера соединения, к первому набору М компонентных интервалов второго набора N компонентных интервалов так, чтобы сетевое соединение содержало M+N компонентных интервалов; и увеличивают скорость транспортировки данных после получения в каждом узле маршрута сетевого соединения для сетевого соединения M+N компонентных интервалов. 10 н. и 18 з.п.

FRAME GENERATING DEVICE

A frame generating device includes an inserting portion and an accommodating portion. The inserting portion inserts a first fixed stuff byt e and a second fixed stuff byte into a payload area of an OTU frame, the first fixed stuff byte being of (8 + 10n ("n" is zero or a given positive integer)) X 4 rows, the second fixed stuff byte being of a given byte X 4 rows, the given byte being equal to zer o or more and being equal to (24-10n) or more. The accommodating portion accommodates Ethernet signal in the payload area other than the first fixed stuff byte an d the second fixed stuff byte.

Method and apparatus for configuring a link group

METHOD AND APPARATUS FOR TRANSMITTING 10 GIGABIT OPTICAL FIBER CHANNEL SERVICE IN OPTICAL TRANSPORT NETWORK

Transmission apparatus

A transmission apparatus is disclosed, which performs positive/negative stuffing with 8-bit/10-bit (8B/10B) codes being kept intact while retaining the normality of 8B/10B codes and the continuity of running disparity (RD) without termination of 8B/10B codes of a plurality of Gigabit Ethernet (GbE) signals received. The apparatus then executes multiplexing and separation after synchronization of the plurality of signals, thereby achieving the “transparent” transport of management information which is contained in the 8B10B codes between user devices.

Method for obtaining target transmission route, related device, and system

Embodiments of this application provide a method for obtaining a target transmission route, a related device, and a system. The method is applied to a flexible Ethernet FlexE networking network and includes: receiving a first message that is sent by a second node for requesting to query for a transmission route of a first FlexE client; and sending a second message to the second node, where a route information entry in the second message includes route information of the FlexE client on each node. Ingress information and egress information that are of a FlexE client on a route node are recorded as a transmission route of each hop. A segment-to-segment transmission route in the FlexE network can be dynamically found in real time, a planned and deployed transmission route is compared with an actually found route, to evaluate a network running status.

Method and apparatus for transporting a client layer signal over an optical transport network (OTN)

In order to facilitate the transport of 1 Gbit/s Ethernet signals over an Optical Transport Network using the Optical Transport Hierarchy as specified by ITU-T G.709, a new OTH entity referred to as Optical Channel Data Unit-0 (ODU0, 101) with a capacity of approximately 1.22 Gbit/s is defined. This new entity fits perfectly into the existing OTH multiplexing structure, allowing the transport of two times a 1 Gbit/s Ethernet client layer signal within the capacity of one ODU1 (110), while being individually switchable. A 1 Gbit/s Ethernet signal (102) can be mapped into the ODU0 payload (103) using the Transparent Generic Framing Procedure (GFP-T) encapsulation technique as specified in Rec. G.7041.

Method and system of signal transmission in base transceiver station based on remote radio head

The invention relates to a method of signal transmission between a host BTS and Remote Radio Unit(s), and the BTS communication system thereof. The transmission channel between the host BTS and the Remote Radio Unit(s) uses wideband transmission links or a network, the method includes the following steps of: performing the transmission over the transmission channel using a Synchronous Digital Hierarchy (SDH)/Optical Transmission Network (OTN), forming a digital wireless signal data stream and an in-band control signaling stream transmitted over the transmission channel into a Generic Framing Procedure (GFP) frame which is further mapped to a STM-N/OTM-n frame, thereby multiplexing the digital wireless signal data stream and the in-band control signaling stream to realize SDH/OTN-based transmission. As a result, the wireless signal can be effectively transmitted between the RRH and the host BTS without specific transmission network, and the management and maintenance operation required by ...

Multilayer packet optical communication networks

An optimized communication network may include an edge switch capable of transporting and switching L1 and L2 traffic and configured to selectively transport and switch L2 traffic using L1 protocols.

METHOD AND APPARATUS FOR SENDING AND RECEIVING MULTIFRAME, AND STORAGE MEDIUM

Provided are a method and apparatus for sending and receiving a multiframe, a communication device, and a communication network system. The method includes: determining a multiframe identifier used for identifying a multiframe number according to a number of timeslots of a physical layer, where the multiframe number is the number of frames constituting one multiframe; and sending the multiframe to a receiving end, where the multiframe carries the multiframe identifier. Further provided is a computer storage medium.

Interface Method Between Remote Radio Unit And Centralized Transceiver Station

The present invention discloses a method for transmitting signal between a central channel processing Main Unit (MU) and one or more Remote Radio Units (RRUs) by using SDH/OTN in Centralized Base Transceiver Station system using remote radio head (RRH) technology. The method includes: dividing the communication interface between the MU and the RRUs into a user plane and a control plane, the user plane mainly for carrying I/Q sampling data concerning the user data, and the control plane mainly for carrying the data concerning control signaling; forming the I/Q sampling data concerning the user data carried by the user plane into an I/Q data frame via an I/Q data frame adaptation layer, then forming the I/Q data frame into a GFP frame via GFP and transmitting it on SDH/OTN; and carrying the control signaling of the control plane on UDP/IP and/or TCP/IP, and further carrying IP packet on PPP and forming it into a frame by HDLC, transmitting the HDLC frame including the control plane signaling ...

Меthоd аnd аppаrаtus fоr trаnspоrting а сliеnt lауеr signаl оvеr аn оptiсаl trаnspоrt nеtwоrk (ОТN)

In оrdеr tо fасilitаtе thе trаnspоrt оf 1 Gbit/s Еthеrnеt signаls оvеr аn Оptiсаl Тrаnspоrt Nеtwоrk using thе Оptiсаl Тrаnspоrt Нiеrаrсhу аs spесifiеd bу IТU-Т G.709, а nеw ОТН еntitу rеfеrrеd tо аs Оptiсаl Сhаnnеl Dаtа Unit-0 (ОDU0, 101) with а саpасitу оf аpprохimаtеlу 1.22 Gbit/s is dеfinеd. Тhis nеw еntitу fits pеrfесtlу intо thе ехisting ОТН multiplехing struсturе, аllоwing thе trаnspоrt оf twо timеs а 1 Gbit/s Еthеrnеt сliеnt lауеr signаl within thе саpасitу оf оnе ОDU1 (110), whilе bеing individuаllу switсhаblе. А 1 Gbit/s Еthеrnеt signаl (102) саn bе mаppеd intо thе ОDU0 pауlоаd (103) using thе Тrаnspаrеnt Gеnеriс Frаming Рrосеdurе (GFР-Т) еnсаpsulаtiоn tесhniquе аs spесifiеd in Rес. G.7041.

METHODS AND APPARATUSES FOR SENDING AND RECEIVING SERVICE, AND NETWORK SYSTEM

СПОСОБ И УСТРОЙСТВО ДЛЯ ПЕРЕДАЧИ И ПРИЕМА СИГНАЛА КЛИЕНТА

Изобретение относится к технике связи и может использоваться в системах оптической связи. Технический результат состоит в повышении помехоустойчивости. Для этого способ включает в себя этапы, на которых: отображают сигнал клиента на каналы фрейма параллельной передачи, причем фрейм параллельной передачи включает в себя по меньшей мере два канала; добавляют служебные сигналы для каналов фрейма параллельной передачи после отображения для формирования каналов передачи фрейма параллельной передачи, причем скорости передачи битов в каналах передачи фрейма параллельной передачи являются фиксированными; и выполняют модуляцию каналов передачи фрейма параллельной передачи на одной или более оптических несущих в одном оптическо-волоконном кабеле, и передают оптическую несущую после модуляции. В соответствии с настоящим изобретением определяется структура фрейма параллельной передачи, сигнал клиента, в частности многоканальный сигнал клиента, отображается на каналы передачи фрейма параллельной передачи ...

СПОСОБ И УСТРОЙСТВА ПЕРЕДАЧИ КЛИЕНТСКИХ СИГНАЛОВ В ОПТИЧЕСКОЙ ТРАНСПОРТНОЙ СЕТИ

Изобретение относится к способам и устройствам передачи цифровой информации и может быть использовано для передачи клиентских сигналов в оптической транспортной сети (ОТС). Технический результат заключается в повышении пропускной способности канала передачи в ОТС и обеспечении независимости устройств ОТС от вида услуг доступа. Для этого при получении клиентского сигнала определяют дополнительный слот в блоке полезной информации оптического канала согласно данному полученному клиентскому сигналу и с помощью самонастраивающейся фиксированной скорости передачи отображают указанный сигнал на дополнительный слот, после чего в блок полезной информации оптического канала добавляют служебную информацию и передают указанный блок к оптическому транспортному каналу. При этом оборудование включает в себя устройства приема и передачи клиентских сигналов в ОТС, выполненные раскрытым в рамках данного изобретения образом. 4 н. и 14 з.п. ф-лы, 12 ил., 7 табл.

СПОСОБ И УСТРОЙСТВО ДЛЯ ОСУЩЕСТВЛЕНИЯ ОТОБРАЖЕНИЯ И ОБРАТНОГО ОТОБРАЖЕНИЯ КЛИЕНТСКОГО СИГНАЛА

... 1. Способ отображения клиентского сигнала, содержащий этапы, на которых:разделяют часть или всю область полезной нагрузки элемента полезной нагрузки оптического канала (OPU) или вспомогательного элемента данных оптического канала (ODTU) на несколько субблоков, причем каждый из субблоков имеет размер N байт, и N - целое число больше 1; иотображают клиентский сигнал, который требуется транспортировать, в субблоки области полезной нагрузки с N-байтным разбиением.2. Способ отображения клиентского сигнала по п.1, в котором отображение клиентского сигнала, который требуется транспортировать, в субблоки области полезной нагрузки с N-байтным разбиением содержит этапы, на которых:вычисляют количество блоков клиентского сигнала, который требуется транспортировать, согласно субблочному размеру области полезной нагрузки;определяют позиционное распределение клиентского сигнала, который требуется транспортировать, в субблоках области полезной нагрузки с использованием упомянутого количества блоков; иотображают ...

СПОСОБ И УСТРОЙСТВО ДЛЯ ПЕРЕДАЧИ И ПРИЕМА СИГНАЛА КЛИЕНТА

... 1. Способ передачи сигнала клиента, содержащий этапы, на которых:отображают сигнал клиента на каналы фрейма параллельной передачи, причем фрейм параллельной передачи содержит по меньшей мере два канала;после отображения добавляют служебные сигналы для каналов фрейма параллельной передачи для формирования каналов передачи фрейма параллельной передачи, при этом добавляют после отображения служебные сигналы управления к одному из каналов фрейма параллельной передачи, причем сигналы управления используют для централизованного управления каналами фрейма параллельной передачи после отображения, а скорости передачи битов в каналах передачи фрейма параллельной передачи являются фиксированными; ивыполняют модуляцию каналов передачи фрейма параллельной передачи на одной или более оптических несущих в одном оптическо-волоконном кабеле и передают упомянутую оптическую несущую после модуляции.2. Способ по п. 1, в котором скорость фрейма параллельной передачи зависит от количества каналов передачи фрейма ...

TRANSMISSION METHOD FOR TRAFFIC SIGNALS WITH LOW SPEED SPEED IN AN OPTICAL TRANSMISSION NETWORK WORK AND DEVICE

SIGNAL SENDING AND RECEIVING METHOD, APPARATUS, AND SYSTEM

Embodiments of the present invention relate to the field of optical communications technologies, and provide a signal sending and receiving method, an apparatus, and a system, so as to resolve a problem of high-cost transmission of optical channel unit signals of different rates. The method includes: mapping a to-be-transmitted optical channel unit signal of n times a benchmark rate to X first optical channel physical link signals, where a rate of the first optical channel physical link signal is m times the benchmark rate, n>=2, X>=2, m i>=1, and (see above formula) , adding a link sequence indicator overhead to each of the X first optical channel physical link signals, to generate X second optical channel physical link signals; and modulating and sending the X second optical channel physical link signals by using X preset optical modules in a one-to-one correspondence manner.

SIGNAL SENDING AND RECEIVING METHOD, APPARATUS, AND SYSTEM

Embodiments of the present invention provided a signal sending and receiving method, apparatus, and system, which relate to the technical field of optical communications and can resolve the problem of high-cost transmission of optical channel unit signals having different rates. The method comprises: mapping a to-be-transmitted optical channel unit signal having a rate that is n times a reference rate to X paths of first optical channel physical link signals, wherein a rate of the first optical channel physical link signal is mi times the reference rate, n=2, X=2, mi=1, as shown in Formula I; adding a link sequence indication overhead to each of the X paths of first optical channel physical link signals, to generate X paths of second optical channel physical link signals; and modulating and sending the X paths of second optical channel physical link signals by means of X pre-set optical modules in a one-to-one correspondence manner.

Service transmission method and agent 1 transmission device

본 발명의 실시예는 서비스 송신 방법 및 제1 송신 디바이스를 개시하며, 방법은, t의 레이트를 갖는 n개의 클라이언트 신호를, FlexO 프레임의 m개의 레인의 ms/t개의 로드 서브영역에 매핑하는 단계(FlexO 프레임의 m개의 레인 각각의 페이로드 영역은 s/t개의 로드 서브영역으로 분할되고, FlexO 프레임의 각 레인은 s의 송신 레이트를 갖는 FlexO 레인을 사용함으로써 송신됨)와, FlexO 프레임의 각 레인에 대한 FlexO 유형 정보, 시간슬롯 오버헤드 정보 및 신호 매핑 정보를 구성하는 단계와, s의 송신 레이트를 갖는 m개의 FlexO 레인을 사용함으로써 FlexO 프레임의 m개의 레인을 제2 송신 디바이스에 송신하는 단계(제2 송신 디바이스는, FlexO 유형 정보, 시간슬롯 오버헤드 정보 및 신호 매핑 정보에 따라, ms/t개의 로드 서브영역에서 반송되는 클라이언트 신호를 파싱하도록 구성됨)를 포함한다. 본 발명의 실시예에 따르면, 서비스 송신 유연성이 개선된다. An embodiment of the present invention discloses a service transmission method and a first transmission device, the method comprising: mapping n client signals having a rate of t to ms / t load subregions of m lanes of a FlexO frame. (The payload region of each of the m lanes of the FlexO frame is divided into s / t load subregions, and each lane of the FlexO frame is transmitted by using a FlexO lane having a transmission rate of s) and each of the FlexO frames Configuring FlexO type information, time slot overhead information, and signal mapping information for the lane, and transmitting m lanes of the FlexO frame to the second transmission device by using m FlexO lanes having a transmission rate of s. (The second transmission device parses the client signal carried in ms / t load sub-regions according to FlexO type information, time slot overhead information, and signal mapping information. And a so configured). According to an embodiment of the present invention, service transmission flexibility is improved.

METHOD FOR DATA TRANSMISSION IN AN OPTICAL TRANSPORT NETWORK

DATA PROCESSING METHOD IN OPTICAL TRANSPORT NETWORK, AND RELATED DEVICE AND SYSTEM

Provided are a data processing method in an optical transport network, and a related device and system. The data processing method in an optical transport network includes: encapsulating service data into an optical payload unit; mapping the optical payload unit to an optical channel data unit; mapping the optical channel data unit to the payload area of an optical burst transport unit; photo-electrically converting the optical burst transport unit to form an optical burst optical signal; bearing the optical burst optical signal onto the optical slot of an optical burst channel; and transmitting the optical burst channel onto a line. The technical solutions provided in the present invention can simplify the data processing process effectively and reduce the data processing time delay.

A METHOD FOR TRANSPORTING THE CLIENT SIGNAL IN THE OPTICAL TRANSPORT NETWORK AND AN EQUIPMENT THEREOF

A method for transporting the client signal in the optical transport network includes: the client signal is obtained and the tributary slot in the optical channel payload unit is determined according to the client signal; the client signal is mapped to the tributary slot by the self-adapting fixed bit rate; the overhead is added into the optical channel payload unit and the optical channel payload unit is sent to the optical transport network after the overhead is added. A sending equipment and a receiving equipment for the optical transport network client signal are also provided.

DYNAMIC HITLESS RESIZING IN OPTICAL TRANSPORT NETWORKS

The invention relates to techniques for controlling a dynamic hitless resizing in data transport networks. According to a method aspect of the invention, a network connection comprises M tributary slots defined in a payload area of a higher order transport scheme of the data transport network and the method comprises the steps of receiving a connection resize control signal at each of the nodes along the path of the network connection; adding at each node along the path in response to the connection resize control signal a second set of N tributary slots to the first set of the M tributary slots, such that the network connection comprises M+N tributary slots; and increasing, after M+N tributary slots are available for the network connection at each node along the path, a transport data rate of the network connection. 1. A method for controlling dynamic hitless resizing of an Optical Data Unit flex (ODUflex) network connection in a data transport network , when the ODUflex network connection is to be incremented , the method comprising:receiving, by an ingress end node, a connection resize control signal CTRL ADD;adding a set of N tributary slots to a set of M tributary slots; andincreasing, a bandwidth of the signal passing through the network connection, after M+N tributary slots are available for the ODUflex network connection at each node along a path in a manner synchronized with a downstream node by passing a tributary slot connectivity check (TSCC) signal;wherein the path of the ODUflex network connection extends between two connection end nodes, or extends over one or more intermediate nodes of the data transport network;wherein the ODUflex network connection transports data of client services in transport frames from the ingress end node to an egress end node; andwherein the ODUflex network connection comprises the set of the M tributary slots defined in a payload area of a higher order transport scheme of the data transport network.2. The method according ...

SERVICE DELIVERY METHOD, DEVICE AND SYSTEM, AND STORAGE MEDIUM

Disclosed are a traffic delivery method, apparatus and system, and a relevant computer storage medium. The method may include: determining the number of traffic flows according to a traffic bandwidth of a traffic to be transmitted; grouping the traffic flows of the traffic to be transmitted according to the number of the traffic flows and a preset grouping policy to obtain a plurality of traffic groups of the traffic to be transmitted; where the number of the traffic groups is equal to the number of physical layer (PHY) transport channels; and determining a PHY transport channel corresponding to each of the traffic groups of the traffic to be transmitted according to a matching relationship between traffic bandwidths of the traffic groups and transmission rates of the PHY transport channels, and sending the each of the traffic groups of the traffic to be transmitted through the PHY transport channel corresponding to the each of the traffic groups of the traffic to be transmitted.

Меthоd аnd аppаrаtus fоr trаnspоrting а сliеnt lауеr signаl оvеr аn оptiсаl trаnspоrt nеtwоrk (ОТN)

In оrdеr tо fасilitаtе thе trаnspоrt оf 1 Gbit/s Еthеrnеt signаls оvеr аn Оptiсаl Тrаnspоrt Nеtwоrk using thе Оptiсаl Тrаnspоrt Нiеrаrсhу аs spесifiеd bу IТU-Т G.709, а nеw ОТН еntitу rеfеrrеd tо аs Оptiсаl Сhаnnеl Dаtа Unit-0 (ОDU0, 101) with а саpасitу оf аpprохimаtеlу 1.22 Gbit/s is dеfinеd. Тhis nеw еntitу fits pеrfесtlу intо thе ехisting ОТН multiplехing struсturе, аllоwing thе trаnspоrt оf twо timеs а 1 Gbit/s Еthеrnеt сliеnt lауеr signаl within thе саpасitу оf оnе ОDU1 (110), whilе bеing individuаllу switсhаblе. А 1 Gbit/s Еthеrnеt signаl (102) саn bе mаppеd intо thе ОDU0 pауlоаd (103) using thе Тrаnspаrеnt Gеnеriс Frаming Рrосеdurе (GFР-Т) еnсаpsulаtiоn tесhniquе аs spесifiеd in Rес. G.7041.

A METHOD FOR TRANSPARENT TRANSMITTING 10GE ETHERNET SIGNAL THROUGH THE OPTICAL TRANSPORT NETWORK

The present invention discloses a method for transparently transmitting the 10GE Ethernet signal through the optical transport network. The method uses a first asynchronous mapping manner to transparently transmit 10GE Ethernet signal; wherein the construction of the first asynchronous mapping manner includes the following steps: A1, indicating the first asynchronous mapping manner using a reserved value of anyone of payload structure identifiers; A2, constructing an optical channel transport unit frame of the first asynchronous mapping manner, in an adjusting and controlling byte thereof, predefining, using at least three bits, a filling state of a positive/negative adjusting byte, adding a negative adjusting byte in an optical channel payload unit overhead region of the optical channel transport unit frame, and adding a positive adjusting byte in a payload structure; A3, constructing, using a reference clock, an overclocked optical channel transport unit frame, and the frequency thereof ...

Frame-interleaving systems and methods for 100G optical transport enabling multi-level optical transmission

The present invention provides frame-interleaving systems and methods for Optical Transport Unit K (OTUK) (i.e. Optical Transport Unit 4 (OTU4)), 100Gb/s Ethernet (100GbE), and other 100Gb/s (100G) optical transport enabling multi-level optical transmission. The frame-interleaving systems and methods of the present invention support the multiplexing of sub-rate clients, such as 10x10Gb/s (10G) clients, 2x40Gb/s (40G) plus 2x10G clients, etc., into two 50Gb/s (50G) transport signals, four 25Gb/s (25G) transport signals, etc. that are forward error correction (FEC) encoded and carried on a single wavelength to provide useful, efficient, and cost-effective 100G optical transport solutions today. In one exemplary configuration, a 100G client signal or 100G aggregate client signal carried over two or more channels is frame-deinterleaved, followed by even/odd sub-channel FEC encoding and framing. In another exemplary configuration, a 100G client signal or 100G aggregate client signal carried ...

Optical transport network power-save technique based on client signal information

СПОСОБ И УСТРОЙСТВО, ПРЕДНАЗНАЧЕННЫЕ ДЛЯ ПЕРЕДАЧИ СИГНАЛА КЛИЕНТСКОГО УРОВНЯ ЧЕРЕЗ ОПТИЧЕСКУЮ СЕТЬ ПЕРЕДАЧИ ДАННЫХ (OTN)

Изобретение к технике оптической передачи данных. Технический результат состоит в повышении пропускной способности оптической сети Ethernet. Для этого определен новый объект иерархии оптической передачи данных (ИОПД), упоминаемый как блок-0 данных оптического канала (БДОК0,) с емкостью приблизительно 1,22 Гбит/с. Этот новый объект идеально подходит для существующей структуры мультиплексирования ИОПД, что дает возможность двукратной передачи сигнала клиентского уровня Ethernet 1 Гбит/с в пределах емкости одного БДОК1, в то же время являясь отдельно коммутируемым. Сигнал Ethernet 1 Гбит/с может быть отображен в полезную нагрузку БДОК0 с использованием способа инкапсуляции прозрачной базовой процедуры формирования кадров (ПБПФК). 2 н. и 9 з.п. ф-лы, 1 табл., 8 ил.

СПОСОБ И УСТРОЙСТВО ДЛЯ ОСУЩЕСТВЛЕНИЯ ОТОБРАЖЕНИЯ И ОБРАТНОГО ОТОБРАЖЕНИЯ КЛИЕНТСКОГО СИГНАЛА

FIELD: radio engineering, communications. SUBSTANCE: invention discloses a method and a device for mapping and reverse mapping of a client signal. The method for mapping of a client signal includes division of a part of or the entire area of an optical channel payload unit (OPU) or an auxiliary optical channel data unit (ODTU) into several subblocks. Besides, the subblocks have the size of N bytes, and N is more or equal to 1; and mapping of a client signal to be transported into payload area subblocks with N-byte division. In technical solutions, when a client signal is mapped, block mapping of the client signal is carried out using a mapping breakdown of the block, therefore complexity of the client signal mapping process may be reduced, and requirements of multiple-speed services are met. EFFECT: simplified process of client signal mapping when meeting requirements of multiple-speed services. 17 cl, 11 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 485 687 (13) C2 (51) МПК H04B 10/00 (2013.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2011131248/07, 14.01.2010 (24) Дата начала отсчета срока действия патента: 14.01.2010 (72) Автор(ы): У Цюю (CN), ШЭНЬ Яо (CN) (73) Патентообладатель(и): ХУАВЭЙ ТЕКНОЛОДЖИЗ КО., ЛТД. (CN) R U Приоритет(ы): (30) Конвенционный приоритет: 10.02.2009 CN 200910005200.5 (43) Дата публикации заявки: 27.03.2013 Бюл. № 9 C 2 2 4 8 5 6 8 7 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 12.09.2011 (86) Заявка PCT: CN 2010/070171 (14.01.2010) R U C 2 (56) Список документов, цитированных в отчете о поиске: US 2007/189336 А1, 16.08.2007. US 2005/272432 A1, 08.12.2005. CN 101291179 A, 22.10.2008. CN 101030827 A, 05.09.2007. CN 101155016 A, 02.04.2008. US 2008/075113 A1, 27.03.2008. ЕР 1638233 A2, 22.03.2006. US 2005/073955 A1, 07.04.2005. US 2008/267223 A1, 30.10.2008. US 7288487 B1, 30.10.2007. RU 2005/136419 A, 27.05.2007. (54) СПОСОБ И УСТРОЙСТВО ДЛЯ ОСУЩЕСТВЛЕНИЯ ...

СПОСОБ ОБРАБОТКИ ДАННЫХ, ПЛАТА СВЯЗИ И УСТРОЙСТВО

FIELD: communication. SUBSTANCE: invention relates to communication technologies. For this, method includes: reception, by means of first communication board of data stream units of ODU optical channel data; performing, by first communication board, slicing processing over ODU data stream according to frames fixed frequency in order to obtain various slices, wherein each slice includes segment of continuous ODU data in ODU data stream; separate inclusion, by means of first communication board, of each slice into Ethernet frame; and sending, by means of first communication board, of each Ethernet frame to TDM multiplexing service switching module with time division in Ethernet switching microchip so, that TDM service switching module sends each Ethernet frame to second communication board, to which directs MAC destination address, portable in Ethernet frame. EFFECT: technical result is reduction of TDM service transmission delay. 20 cl, 8 dwg, 2 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 606 060 C1 (51) МПК H04L 12/64 (2006.01) H04L 12/939 (2013.01) H04Q 11/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2015126794, 05.12.2012 (24) Дата начала отсчета срока действия патента: 05.12.2012 Дата регистрации: (72) Автор(ы): СЯО Синьхуа (CN), ЧЭНЬ Юйцзе (CN), ТАН Цзинсинь (CN) Приоритет(ы): (22) Дата подачи заявки: 05.12.2012 (56) Список документов, цитированных в отчете о поиске: RU 2465732 C2, 27.10.2012. CN (45) Опубликовано: 10.01.2017 Бюл. № 1 (86) Заявка PCT: CN 2012/085963 (05.12.2012) (87) Публикация заявки PCT: Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры" 2 6 0 6 0 6 0 (54) СПОСОБ ОБРАБОТКИ ДАННЫХ, ПЛАТА СВЯЗИ И УСТРОЙСТВО (57) Формула изобретения 1. Способ обработки данных, применяемый в устройстве коммутации данных, содержащем первую плату связи, вторую плату связи и модуль коммутации услуги ...

СИСТЕМА, УСТРОЙСТВО И СПОСОБ ПЕРЕДАЧИ И ПРИЕМА СИГНАЛА

FIELD: communication equipment.SUBSTANCE: invention relates to communication engineering and can be used in optical communication systems. Method includes steps of displaying a signal of an optical channel unit to be transmitted, n times the reference speed on X, the first signals of the physical link of the optical channel, wherein transmission rate of optical channel physical channel first signal is equal to mtimes of reference speed, adding service data of indication of line sequence to each of X first signals of physical channel of optical channel for generation of X second signals of physical channel of optical channel; and modulating and transmitting X second signals of optical channel physical line using X preset optical modules in one-to-one correspondence.EFFECT: technical result is increased transmission channel capacity.20 cl, 20 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 683 287 C1 (51) МПК H04B 10/516 (2013.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК H04B 10/516 (2006.01); H04B 10/532 (2006.01); H04L 12/2885 (2006.01) (21)(22) Заявка: 2018115229, 05.08.2016 (24) Дата начала отсчета срока действия патента: Дата регистрации: (73) Патентообладатель(и): ХУАВЕЙ ТЕКНОЛОДЖИЗ КО., ЛТД (CN) 27.03.2019 (56) Список документов, цитированных в отчете о поиске: WO 2014/019359 A1, 06.02.2014. RU 25.09.2015 CN 201510624117.1 2421925 C1, 20.06.2011. RU 2454798 C2, 27.06.2012. WO 2013/185327 A1, 19.12.2013. (45) Опубликовано: 27.03.2019 Бюл. № 9 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 25.04.2018 (86) Заявка PCT: 2 6 8 3 2 8 7 R U (87) Публикация заявки PCT: WO 2017/050027 (30.03.2017) C 1 C 1 CN 2016/093576 (05.08.2016) 2 6 8 3 2 8 7 Приоритет(ы): (30) Конвенционный приоритет: R U 05.08.2016 (72) Автор(ы): СУ, Вэй (CN), ВИССЕРС, Мартен П.Й. (CN), У, Цюю (CN) Адрес для переписки: 109012, Москва, ул. Ильинка, 5/2, ООО "Союзпатент" (54) СИСТЕМА, УСТРОЙСТВО И СПОСОБ ПЕРЕДАЧИ И ПРИЕМА СИГНАЛА ( ...

Dynamic hitless resizing in optical transport networks

The invention relates to techniques for contro lling a dynamic hitless resizing in data transport networks. According to a method aspect of the invention, a network connection comprises M tributary slots d efined in a payload area of a higher order transport scheme of the data transport network and the method comprises the steps of rec eiving a connection re size control si gnal at each of the nodes along the path of the network connection; ad ding at each node along the path in response to the connection resize control signal a second set of N tributary slots to the first set of the M tributary slots, such that the network connection comprises M+N tributary slots; and increasing, after M+N tributary slots are av ailable for the network connection at each node along the path, a transport data rate of the network connection.

FRAME GENERATING DEVICE

A frame generating device includes an inserting portion and an accommodating portion. The inserting portion inserts a first fixed stuff byte and a second fixed stuff byte into a payload area of an OTU frame, the first fixed stuff byte being of (8 + 10n ("n" is zero or a given positive integer)) X 4 rows, the second fixed stuff byte being of a given byte X 4 rows, the given byte being equal to zero or more and being equal to (24-10n) or more. The accommodating portion accommodates Ethernet signal in the payload area other than the first fixed stuff byte and the second fixed stuff byte.

LOW SPEED RATE TRAFFIC SIGNAL TRANSMISSION METHOD IN OPTICAL TRANSMISSION NETWORK AND DEVICE

A low speed rate traffic signal transmission method in optical transmission network and device are provided in the present invention, by which the format of the low speed rate traffic optical channel data unit signal used to carry the said low speed rate traffic signal is defined; the low speed rate traffic signal is mapped to the low speed rate traffic optical channel payload unit of the low speed rate traffic optical channel data unit signal, and the overhead bytes are filled in the low speed rate traffic optical channel data unit overhead area, so to generate low speed rate traffic optical channel data unit signal; more than one low speed rate traffic optical channel data unit signals are multi-connected with the optical channel data unit signal of transmission speed rate level of the optical transmission network, and are transmitted by the optical transmission network. Based on the method, a low speed rate traffic signal transmission device in optical transmission network is also provided ...

Data sending method and forwarding device

A data sending method, where the method includes receiving, by a forwarding device using a first flexible Ethernet (FlexE) group and in multiple timeslots included in a first timeslot set, multiple first encoded data blocks from a physical coding sublayer (PCS), determining, by the forwarding device according to the timeslots included in the first timeslot set and the first FlexE group, a second FlexE group and multiple timeslots included in a second timeslot set, and sending, by the forwarding device, the first encoded data blocks using the second FlexE group and in the timeslots included in the second timeslot set. The forwarding device does not need to process the first encoded data blocks in a conventional layer 2 or layer 3 forwarding mode. Therefore, a processing delay can be reduced, and a transmission delay can be reduced.

SENDING METHOD, RECEIVING AND PROCESSING METHOD AND APPARATUS FOR ADAPTING PAYLOAD BANDWIDTH FOR DATA TRANSMISSION

A sending method, a receiving and processing method and an apparatus for adapting a payload bandwidth for data transmission are provided. In the method, N coding blocks containing 64B are acquired, in which N is an integer greater than or equal to 2, and the acquired N coding blocks are converted into a (64*N+1)B coding block, so that a required linear rate is reduced after conversion, thereby reducing requirements for the payload bandwidth of a bearer layer, and satisfying the payload bandwidth required for transmitting 40 Gigabit Ethernet (40 GE) or 10 Gigabit Ethernet (10 GE) MAC frames in an optical transport network (OTN).

Precise time synchronization across optical modules for group alignment

An optical system supporting timing synchronization, alignment and deskewing across optical modules includes a plurality of optical devices each providing an Optical Tributary Signal (OTSi) which are part of an Optical Tributary Signal Group (OTSiG); and a management communication mechanism between the plurality of optical devices, wherein each of the plurality of optical devices are timing synchronized using the management communication mechanism and Precision Time Protocol (PTP) messaging. Each of the plurality of optical devices can include delay circuitry configured to deskew an associated OTSi with respect to other OTSi signals in the OTSiG.

MULTIPLEXING RELAY TRANSMISSION DEVICE

METHOD AND DEVICES FOR TRANSMITTING CLIENT SIGNALS IN OPTICAL TRANSPORT NETWORK

СИСТЕМА ПЕРЕАДРЕСАЦИИ УСЛУГ POTN И СПОСОБ ПЕРЕАДРЕСАЦИИ УСЛУГ, ВЫДАЧИ КОНФИГУРАЦИИ И ОБЕСПЕЧЕНИЯ ЗАЩИТЫ

Изобретение относится к области техники передачи POTN. Технический результат - обеспечение возможности переадресации услуг POTN и улучшение эксплуатационной эффективности и стабильности системы. Система содержит блок передачи данных Ethernet, коммутационный блок и линейный блок OTN. В системе экземпляры POVE создаются в качестве многоадресной рассылки в восходящем направлении, чтобы обеспечить мостовое соединение, пакетная служба использует многоадресную рассылку в качестве выходного порта канала услуги для исходящей связи, а услуга OTN использует многоадресную рассылку в качестве порта-источника взаимодействия с каналом ODUK. В направлении входящей связи создаются экземпляры POVE в качестве VLANDOMAIN, чтобы обеспечить мостовое соединение, услуга OTN назначает задний боковой сетевой порт, подключенный к каналу ODUK, с VLANDOMAIN, а услуга пакетной передачи использует VLANDOMAIN в качестве общего физического порта для классификации для доступа к пакетной услуге. Также в настоящем изобретении ...

ДИНАМИЧЕСКОЕ БЕСПРЕРЫВНОЕ ИЗМЕНЕНИЕ РАЗМЕРОВ В ОПТИЧЕСКИХ ТРАНСПОРТНЫХ СЕТЯХ БЕЗ ПРЕРЫВАНИЯ ПЕРЕДАЧИ

... 1. Способ управления динамическим изменением размера сетевого соединения без прерывания передачи в сети транспортировки данных,при этом маршрут сетевого соединения проходит между двумя конечными узлами соединения, и, необязательно, через один или более промежуточный узел сети транспортировки данных;причем сетевое соединение выполнено с возможностью транспортировки данных клиентских услуг в транспортных кадрах от конечного узла источника до конечного узла назначения; исетевое соединение содержит первый набор М компонентных интервалов, определенных в области полезной нагрузки в схеме транспортировки более высокого порядка сети транспортировки данных;при этом способ содержит этапы, на которых:при увеличении сетевого соединения:принимают сигнал управления изменением размера соединения в каждом из узлов маршрута сетевого соединения;добавляют в каждом узле маршрута сетевого соединения, в ответ на сигнал управления изменением размера соединения, к первому набору М компонентных интервалов второй ...

PROCEDURE AND DEVICE FOR THE TRANSPORT OF A CLIENT SIGNAL OVER AN OPTICAL TRANSPORTATION NET (OTN)

PROCEDURE FOR THE TRANSPORT OF THE CLIENT SIGNAL IN THE OPTICAL TRANSPORTATION NET AND DEVICES FOR IT

Method and device for bit block stream processing, rate matching and exchange

Service Transmission Method And First Transmission Device

A service transmission method and a transmission device are disclosed. The method includes: mapping n client signals with a rate of t to ms/t load subareas of m lanes of flexible optical transport network (FlexO) frames, where a payload area of each of the m lanes of FlexO frames is divided into s/t load subareas, and each lane is transmitted using a FlexO lane with a transmission rate of s; configuring a FlexO type, timeslot overhead, and signal mapping information for each lane; and transmitting the m lanes of FlexO frames to a second transmission device by using m FlexO lanes with the transmission rate of s. The second transmission device is configured to parse, according to the FlexO type, the timeslot overhead, and the signal mapping information, the client signals carried in the ms/t load subareas.

METHOD, DATA INTERFACE AND DEVICE FOR TRANSPORTING DATA FROM HIGH-SPEED ETHERNET TO OPTICAL TRANSPORT NETWORK

The present invention provides a method, a data interface and a device for transporting data from a high-speed Ethernet to an OTN (Optical Transport Network), where seamless transport of Ethernet traffic to the OTN can be enabled through flow control, rate-matching, and mapping and encapsulation respectively performed at an Media Access Control Sub-layer, a Physical Coding Sub-layer, and an Optical Transport Network Interface Sub-layer. Thus, only one mapping and encapsulation of data is required to directly enable through a physical layer the transparent transport of the Ethernet traffic to the OTN, and due to the rate-matching implemented upon the mapping, the traffic transport can be enabled in a standard-compliant way with guaranteed efficiency and quality.

Flexible-Ethernet Data Processing Method And Related Device

The present disclosure relates to flexible-Ethernet data processing methods and devices. One example method includes acquiring a to-be-switched first client service flow, where the first client service flow is a service flow suitable for transmission on a flexible Ethernet, performing first rate adaptation from a source clock domain to a target clock domain on the first client service flow to obtain a second client service flow that matches the target clock domain, and performing serial-to-parallel conversion on the second client service flow in the target clock domain to obtain a parallel client slot flow.

System, method, and apparatus for mapping synchronous and asynchronous data

A method, system, and apparatus for transmitting information over an coherent optical link comprising enabling synchronous and asynchronous data sources to be mapped together into a single payload using a generic mapping system which performs decoupling of a clock from each data source, and mapping data from each data source into a tributary of an oFrame.

Method for Sending and Receiving Optical Transport Network (OTN) Signal, OTN Device, and System

Embodiments provide a method for sending an optical transport network (OTN) signal, including: acquiring, by a network element (an OTN device), a first OTN signal, and determining a to-be-deleted timeslot in the first OTN signal; deleting the to-be-deleted timeslot in the first OTN signal, to form a second OTN signal; and sending the second OTN signal by using an optical module, where a transmission rate of the second OTN signal adapts to a transmission rate of the optical module. 1. A method , comprising:acquiring a first optical transport network (OTN) signal, and determining a to-be-deleted timeslot in the first OTN signal;deleting the to-be-deleted timeslot in the first OTN signal, to form a second OTN signal; andsending the second OTN signal busing an optical module, wherein a transmission rate of the second OTN signal adapts to a transmission rate of the optical module.2. The method according to claim 1 , wherein after determining the to-be-deleted timeslot in the first OTN signal claim 1 , the method further comprises:adding a timeslot deletion identifier to the first OTN signal, wherein the timeslot deletion identifier indicates the to-be-deleted timeslot in the first OTN signal.3. The method according to claim 1 , wherein determining the to-be-deleted timeslot in the first OTN signal comprises:receiving first timeslot configuration information from a network management system, wherein the first timeslot configuration information indicates the to-be-deleted timeslot in the first OTN signal; anddetermining the to-be-deleted timeslot in the first OTN signal according to the first timeslot configuration information.4. The method according to claim 1 , wherein determining the to-be-deleted timeslot in the first OTN signal comprises:determining the to-be-deleted timeslot in the first OTN signal according to a preset policy.5. The method according to claim 4 , wherein after adding the timeslot deletion identifier to the first OTN signal claim 4 , the method ...

DATA TRANSMISSION METHOD AND APPARATUS

This application provides a data transmission method and apparatus. The method includes: processing, by a network device, a to-be-sent optical data unit ODU to obtain another ODU, where a bit rate of the another ODU is lower than a bit rate of the ODU; and sending, by the network device, the another ODU. In embodiments of this application, the ODU is processed to obtain the another ODU with a lower bit rate, and this helps reduce a rate increase when service data is transmitted in an OTN, so as to reduce an OTN interface rate and OTN costs.

A METHOD AND APPARATUS FOR MAPPING THE ETHERNET CODE-BLOCK TO THE OPTICAL TRANSPORT NETWORK FOR TRANSMITTING

A method and a device for mapping Ethernet code blocks to an optical transport network (OTN) for transmission is provided. According to a preset mapping manner, four groups of 10 Gigabit (10G) Ethernet code blocks are uniformly mapped to a payload area of a general frame provision (GFP) frame, or each group of 10G Ethernet code blocks is interleaved into the payload area of each row of the OTN frame. Thus, specific solutions for mapping four groups of 10G Ethernet code blocks having an encoding rate smaller than the minimum payload bandwidth of the OPU3 to the OTN for transmission are provided, thereby achieving transparent transmission without changing the mature OTN architecture.

SIGNAL BLOCK SEQUENCE PROCESSING METHOD AND SIGNAL BLOCK SEQUENCE PROCESSING APPARATUS

СПОСОБ ПЕРЕДАЧИ УСЛУГИ И ПЕРВОЕ ПЕРЕДАЮЩЕЕ УСТРОЙСТВО

FIELD: communication equipment. SUBSTANCE: invention relates to a communication technology using an optical transport network and is intended for flexible transmission of a service. Embodiment of invention discloses, in particular, a method of transmitting a service, which includes steps of: displaying n client signals at a rate of t on ms/t sub-regions of load m of FlexO frames, wherein payload area of each of m lines of FlexO frames is divided into s/t sub-regions of load and each line of FlexO frame is transmitted using FlexO line with speed s; configuring FlexO type information, time interval service information and signal display information for each frame FlexO line and transmitting m FlexO lines to the second transmitting device using m FlexO lines with a transmission speed s, wherein the second transmitting device is configured to perform parsing in accordance with FlexO type information, time interval service signaling information and signal display information, client signals transmitted in the ms/t load sub-regions. EFFECT: disclosed is a service transmission method and a first transmitting device. 19 cl, 18 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 691 748 C1 (51) МПК H04J 14/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК H04J 14/02 (2019.02) (21)(22) Заявка: 2018145955, 27.05.2016 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): ХУАВЕЙ ТЕКНОЛОДЖИЗ КО., ЛТД. (CN) Дата регистрации: 18.06.2019 (56) Список документов, цитированных в отчете о поиске: CN 101827285 A, 08.09.2010. CN 101217334 A, 09.07.2008. US 2010046951 A1, 25.02.2010 . WO 2015/032259 A1, 12.03.2015 . RU 2439708 C2, 10.01.2012. (45) Опубликовано: 18.06.2019 Бюл. № 17 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 24.12.2018 (86) Заявка PCT: CN 2016/083757 (27.05.2016) 2 6 9 1 7 4 8 Приоритет(ы): (22) Дата подачи заявки: 27.05.2016 R U 27.05.2016 (72) Автор(ы): СУ Вэй (CN), У Цюю (CN) ...

Method And Device For Mapping And De-Mapping A Client Signal

Disclosed are a method and device for implementing mapping and de-mapping of a client signal, said method including the following steps: dividing part or all of the payload area of the optical channel payload unit or optical channel data tributary unit into several sub blocks, the size of said sub block being N bytes, and N being greater than or equal to 1 (210); setting N bytes as the granularity and mapping the client signal, which is waiting to be sent, to the sub blocks of the payload area (220). When performing client signal mapping, the technical solutions adopted by the embodiments of the present invention use blocks as the mapping granularity to perform block mapping of the client signal, thus reducing the complexity of client signal mapping processing, and meeting the requirements of multi-rate service.

DYNAMIC HITLESS RESIZING IN OPTICAL TRANSPORT NETWORKS

The invention relates to techniques for contro lling a dynamic hitless resizing in data transport networks. According to a method aspect of the invention, a network connection comprises M tributary slots d efined in a payload area of a higher order transport scheme of the data transport network and the method comprises the steps of rec eiving a connection re size control si gnal at each of the nodes along the path of the network connection; ad ding at each node along the path in response to the connection resize control signal a second set of N tributary slots to the first set of the M tributary slots, such that the network connection comprises M+N tributary slots; and increasing, after M+N tributary slots are av ailable for the network connection at each node along the path, a transport data rate of the network connection.

Frame generating device

A frame generating device includes an inserting portion and an accommodating portion. The inserting portion inserts a first fixed stuff byte and a second fixed stuff byte into a payload area of an OTU frame, the first fixed stuff byte being of (8 + 10n ("n" is zero or a given positive integer)) X 4 rows, the second fixed stuff byte being of a given byte X 4 rows, the given byte being equal to zero or more and being equal to (24 - 10n) or more. The accommodating portion accommodates Ethernet signal in the payload area other than the first fixed stuff byte and the second fixed stuff byte.

Data processing method, communication equipment and communication system

本发明实施例提供的数据处理的方法、通信设备及通信系统，在传输分组业务过程中，先获取承载了分组业务的码块流，再对获取到的码块流进行速率适配，最后将速率适配后的码块流映射到光通道净荷单元OPU信号中。相比于传统的通过GFP的映射方式，本发明实施例提供的数据处理的方法、通信设备及通信系统处理复杂度低和/或带宽利用率高。

Method and device for transmitting ultra high-speed Ethernet service

Transmission apparatus

Interface method for long-distance radio frequency unit and centralized base station

서비스 송신 방법 및 제1 송신 디바이스

... 본 발명의 실시예는 서비스 송신 방법 및 제1 송신 디바이스를 개시하며, 방법은, t의 레이트를 갖는 n개의 클라이언트 신호를, FlexO 프레임의 m개의 레인의 ms/t개의 로드 서브영역에 매핑하는 단계(FlexO 프레임의 m개의 레인 각각의 페이로드 영역은 s/t개의 로드 서브영역으로 분할되고, FlexO 프레임의 각 레인은 s의 송신 레이트를 갖는 FlexO 레인을 사용함으로써 송신됨)와, FlexO 프레임의 각 레인에 대한 FlexO 유형 정보, 시간슬롯 오버헤드 정보 및 신호 매핑 정보를 구성하는 단계와, s의 송신 레이트를 갖는 m개의 FlexO 레인을 사용함으로써 FlexO 프레임의 m개의 레인을 제2 송신 디바이스에 송신하는 단계(제2 송신 디바이스는, FlexO 유형 정보, 시간슬롯 오버헤드 정보 및 신호 매핑 정보에 따라, ms/t개의 로드 서브영역에서 반송되는 클라이언트 신호를 파싱하도록 구성됨)를 포함한다. 본 발명의 실시예에 따르면, 서비스 송신 유연성이 개선된다.

METHOD AND DEVICE FOR TRANSPORTING ULTRA-HIGH-SPEED ETHERNET SERVICE

Disclosed are a method and a device for transporting an ultra-high-speed Ethernet service. The method comprises: distributing an ultra-high-speed Ethernet service data stream into n paths of virtual channel, the ultra-high-speed Ethernet service data stream having the rate being greater than 100 GE; synchronously adding labels of the n paths of virtual channel data; mapping the n paths of virtual channel data channel by channel; and framing and sending the n paths of virtual channel data. The method transparently transports the ultra-high-speed Ethernet service in a channelized transport manner, and performs mapping processing on the ultra-high-speed Ethernet service to reduce the complexity thereof to the processing level of a low-rate Ethernet service, thereby reducing the implementation difficulty.

SYSTEM AND METHOD FOR PERFORMING RATE ADAPTATION OF CONSTANT BIT RATE (CBR) CLIENT DATA WITH A FIXED NUMBER OF IDLE BLOCKS FOR TRANSMISSION OVER A METRO TRANSPORT NETWORK (MTN)

A system and method for performing rate adaptation of constant bit rate (CBR) client data for transmission over a Metro Transport Network (MTN) by defining a plurality of pseudo-Ethernet packets at a source node, assembling a plurality of Generic Mapping Procedure (GMP) frames by mapping a plurality of blocks from a stream of encoded blocks of CBR client data, a plurality of pad blocks, and GMP overhead into consecutive pseudo-Ethernet packets of the plurality of pseudo-Ethernet packets, inserting a fixed number of idle blocks between one or more of the consecutive pseudo-Ethernet packets and inserting an MTN path overhead (POH) frame that is aligned to the plurality of GMP frames to generate a plurality of rate adapted GMP frames for transmission over the MTN to an intermediate node or a sink node.

СПОСОБ И УСТРОЙСТВО, ПРЕДНАЗНАЧЕННЫЕ ДЛЯ ПЕРЕДАЧИСИГНАЛА КЛИЕНТСКОГО УРОВНЯ ЧЕРЕЗ ОПТИЧЕСКУЮ СЕТЬ ПЕРЕДАЧИ ДАННЫХ (OTN)

... 1. Способ передачи сигнала клиентского уровня через оптическую сеть передачи данных, причем упомянутая оптическая сеть передачи данных предназначена для передачи оптических сигналов передачи данных, структурированных в соответствии с иерархией оптической передачи данных, причем упомянутая иерархия оптической передачи данных предоставляет, по меньшей мере, три уровня мультиплексирования k, где k=1, 2 и 3, и определяет соответствующие блоки-k данных оптического канала, при этом упомянутые блоки-k данных оптического канала, где k=1, 2 и 3, имеют такой размер, что четыре сигнала передачи данных, построенных из блоков данных оптического канала более низкого уровня, могут быть мультиплексированы в один сигнал передачи данных, построенный из блоков данных оптического канала следующего более высокого уровня; причем каждый из блоков-k данных оптического канала содержит область служебных данных и область полезной нагрузки; при этом упомянутая оптическая сеть передачи данных поддерживает, по меньшей ...

CLOCK SYNCHRONIZATION METHOD AND APPARATUS

Provided is a clock synchronization method, comprising: a receiving apparatus receiving multiple data blocks via multiple physical layer modules PHY, wherein the multiple data blocks comprise multiple leading data blocks; the receiving apparatus performing timestamp sampling on the multiple data blocks to generate multiple receiving timestamps; the receiving apparatus aligning the multiple receiving timestamps by taking a first receiving timestamp as a reference; the receiving apparatus generating a clock synchronization message according to the multiple data blocks; and the receiving apparatus writing the value of a second receiving timestamp into the clock synchronization message, wherein the second receiving timestamp is a receiving timestamp of a second data block and determined based on the aligned multiple receiving timestamps, and the second data block is a data block, among the multiple data blocks, for performing sending timestamp sampling. The clock synchronization method provided ...

METHOD AND APPARATUS FOR SENDING AND RECEIVING CLOCK SYNCHRONIZATION PACKET

Provided in the present application is a method for transmitting and receiving a clock synchronization message in FlexE, comprising: a transmitting device generates indication information and a plurality of data blocks, the plurality of data blocks being obtained by encoding a first clock synchronization message, the indication information being used to indicate a first data block, and the first data block being a data block for time-stamp sampling among the plurality of data blocks; the transmitting device determines, according to the indication information, the time when the first data block reaches a medium dependent interface (MDI) of the transmitting device and generates a transmitting time stamp, the transmitting time stamp being used for recording the transmitting time of the first clock synchronization message; the transmitting device generates a second clock synchronization message carrying the transmitting time stamp; and the transmitting device transmits the second clock synchronization ...

METHOD AND DEVICE FOR MAPPING AND DEMAPPING A CLIENT SIGNAL

A method and a device for mapping and demapping a client signal are provided. The method for mapping a client signal includes: dividing a part or all of a payload area of an Optical Channel Payload Unit (OPU) or Optical channel Data Tributary Unit (ODTU) into several sub-blocks, in which the sub-blocks have a size of N bytes, and N is greater than or equal to 1; and mapping a client signal to be transported to the sub-blocks of the payload area with an N-byte granularity. In the technical solutions, when the client signal is mapped, block mapping of the client signal is performed by using a mapping granularity of a block, so that the complexity of the mapping process of the client signal can be reduced, thereby meeting requirements of multi-rate services.

METHOD AND APPARATUS FOR TRANSMITTING 10 GIGABIT OPTICAL FIBER CHANNEL SERVICE IN OPTICAL TRANSPORT NETWORK

Ethernet private local area network systems and methods

The present disclosure provides hybrid packet-optical private network systems and methods for a private and dedicated multi-point Ethernet Private Local Area Network (EPLAN). The network systems and methods include a Layer 1 infrastructure service with the inclusion of reserved, dedicated packet switch capacity upon which clients can build their personal, private packet networks. In the systems and methods described herein, packet networking methods are not used to partition the isolated LAN connectivity. Instead, dedicated Ethernet Private LANs (EPLs) are defined between dedicated virtual switching instances (VSIs) that are defined, as necessary, within larger packet-optical switches. Each VSI is partitioned from the remainder of its packet switch fabric as a dedicated, private resource for a specific EPLAN. A packet network is then built by the customer on top of the private EPLAN bandwidth and operated as an isolated, private network with no influence by other carrier's network resources ...

SERVICE FLOW TRANSMISSION METHOD AND APPARATUS, AND DEVICE AND STORAGE MEDIUM

Provided are a service flow transmission method and apparatus, a device, and a storage medium. The service flow transmission method includes: acquiring service flows; and performing transmission via different FlexE outgoing interfaces according to priorities of the service flows. By means of determining priorities of service flows, and performing transmission via different FlexE outgoing interfaces according to the priorities of the service flows, mutual interference between service flows can be prevented.

FLEXIBLE ETHERNET-BASED SERVICE FLOW TRANSMISSION

SERVICE TRANSMISSION METHOD AND FIRST TRANSMISSION DEVICE

Embodiments of the present invention disclose a service transmission method and a first transmission device, and the method includes: mapping n client signals with a rate of t to ms/t load subareas of m lanes of FlexO frames, where a payload area of each of the m lanes of FlexO frames is divided into sit load subareas, and each lane of FlexO frame is transmitted by using a FlexO lane with a transmission rate of s; configuring FlexO type information, timeslot overhead information, and signal mapping information for each lane of FlexO frame; and transmitting the m lanes of FlexO frames to a second transmission device by using m FlexO lanes with the transmission rate of s, where the second transmission device is configured to parse, according to the FlexO type information, the timeslot overhead information, and the signal mapping information, the client signals carried in the ms/t load subareas. According to the embodiments of the present invention, service transmission flexibility is improved.

METHOD AND DEVICE FOR MAPPING AND DEMAPPING A CLIENT SIGNAL

A method and a device for mapping and demapping a client signal are provided. The method for mapping a client signal includes: dividing a part or all of a payload area of an Optical Channel Payload Unit (OPU) or Optical channel Data Tributary Unit (ODTU) into several sub-blocks, in which the sub-blocks have a size of N bytes, and N is greater than or equal to 1; and mapping a client signal to be transported to the sub-blocks of the payload area with an N-byte granularity. In the technical solutions, when the client signal is mapped, block mapping of the client signal is performed by using a mapping granularity of a block, so that the complexity of the mapping process of the client signal can be reduced, thereby meeting requirements of multi-rate services.

Method and apparatus for transmitting 10G bit optical fiber channel service in optical transmission network

The invention discloses a method and a device for transmitting the 10 gigabit fiber channel service in an optical transmission network, belonging to the technical field of the optical transport network. The method comprises the following steps: firstly, a sender adjusts the speed rate of the user side receiving the 10 GFC service signal to the 10GE signal speed rate; secondly, the 10 GFC service signal with the adjusted speed rate is mapped into OTU2e/ODU2e signal or OTU1e/ODU1e signal sent to the optical transmission network to transmit; the receiver receives the OTU2e/ODU2e from the networkside, or the OTU1e/ODU1e signal performs the decoding frame process to be the 10 GFC service signal with 10 GE speed rate; then the speed rate of the 10GFC service signal is adjusted to the standard;and finally, the 10GFC service signal with the adjusted speed rate is sent to the client side, thereby facilitating the mixing syntaxis access of various 10G services and utilizing the bandwidth resources ...

Method and apparatus for transporting a optical signal

METHOD FOR ADJUSTING PHY IN FLEXE GROUP, RELATED DEVICE, AND STORAGE MEDIUM

Embodiments of this application provide a method. A receiving device determines that a first PHY needs to be added to a first FlexE group in a working state; performs deskew on the first PHY or each PHY in the first FlexE group based on a received data stream corresponding to the first PHY and a received data stream corresponding to each PHY in the first FlexE group, and restores a data stream corresponding to a client from a PHY in the first FlexE group; and if skew between the data stream corresponding to the first PHY and the data stream corresponding to each PHY in the first FlexE group after the deskew is performed is zero, restores a data stream corresponding to a client from a PHY in a second FlexE group. Flexibility of adjusting a PHY in a FlexE group in a working state is improved.

Method and apparatus for bearing flexible ethernet service on optical transport network

Embodiments of the present disclosure disclose a method and an apparatus for bearing a flexible Ethernet service on an optical transport network (OTN). The method includes extracting a flexible Ethernet service from a flexible Ethernet service layer; performing data division on the flexible Ethernet service to obtain at least two data queues, where each data queue carries a queue identifier; mapping each data queue into an OTN container, where the OTN container includes an optical channel data unit-k (ODUk) container or an optical channel data unit flexible container; and sending the OTN containers to an OTN. By using the embodiments of the present disclosure, bandwidth utilization can be improved, and network construction costs of an OTN can be reduced.

Method and device for transmitting and receiving clock synchronization message

Provided in the present application is a method for transmitting and receiving a clock synchronization message in FlexE, comprising: a transmitting device generates indication information and a plurality of data blocks, the plurality of data blocks being obtained by encoding a first clock synchronization message, the indication information being used to indicate a first data block, and the first data block being a data block for time-stamp sampling among the plurality of data blocks; the transmitting device determines, according to the indication information, the time when the first data block reaches a medium dependent interface (MDI) of the transmitting device and generates a transmitting time stamp, the transmitting time stamp being used for recording the transmitting time of the first clock synchronization message; the transmitting device generates a second clock synchronization message carrying the transmitting time stamp; and the transmitting device transmits the second clock synchronization ...

PACKET TRANSMISSION APPARATUS AND A METHOD THEREOF FOR PREVENTING PACKET LOSS OF A FRAME IN AN ODUFLEX(GFP) MODE

PURPOSE: A packet transmission apparatus and a method thereof are provided to transmit a 10GBASE-R signal in an LO ODU2(GFP) mode by using control overhead including an LCOR(Link Connection Over Resizing) bit. CONSTITUTION: A client connection unit(110) outputs a packet client signal according to a control overhead. An ODUk(Optical channel Data Unit,k=1,2,3,4,flex) mapping unit(130) maps the packet client signal to an ODUk signal. An ODUflex(flexible ODU) mapping unit(120) maps the packet client signal to an ODUflex signal. An ODUflex multiplexing unit(140) multiplexes a plurality of the ODUflex signals. An OTUk(Optical channel transport unit, k=1,2,3,4) mapping unit(150) maps the mapped ODUk signal to the multiplexed signal. COPYRIGHT KIPO 2012 ...

Data processing method, communications board and device

Embodiments of the present invention provide a data processing method, a communications board and a device. The method includes: acquiring, by a first communications board, an optical channel data unit ODU data flow; performing, by the first communications board, slicing processing on the ODU data flow according to a fixed frame frequency, so as to obtain various slices, where each slice includes a section of continuous ODU data in the ODU data flow; separately encapsulating, by the first communications board, each slice into an Ethernet frame; and sending, by the first communications board, each Ethernet frame to a time division multiplexing TDM service switching module in an Ethernet switching chip, so that the TDM service switching module sends each Ethernet frame to a second communications board to which a destination MAC address carried in the Ethernet frame directs.

Dynamic hitless resizing in optical transport networks

The invention relates to techniques for controlling a dynamic hitless resizing in data transport networks. According to a method aspect of the invention, a network connection comprises M tributary slots defined in a payload area of a higher order transport scheme of the data transport network and the method comprises the steps of receiving a connection resize control signal at each of the nodes along the path of the network connection; adding at each node along the path in response to the connection resize control signal a second set of N tributary slots to the first set of the M tributary slots, such that the network connection comprises M+N tributary slots; and increasing, after M+N tributary slots are available for the network connection at each node along the path, a transport data rate of the network connection.

Multiplexing low-order to high-order ODU signals in an optical transport network

A method and apparatus are provided for multiplexing one or more Low-Order (LO) ODUj/ODUflex clients into a High-Order (HO) ODUk in an Optical Transport Network (OTN). LO bytes are multiplexed in accordance with a tributary slot assignment for a selected LO ODUj of the HO ODUk stream using a permutation matrix. In an implementation, each byte on each ingress port of a W-port space-time-space switch is configurably assigned to an associated timeslot of an associated egress port, using time-division multiplexing. The number of TribSlots assigned to an ODUflex may be increased and decreased hitlessly. A Clos-like Space-Time-Space switch is used to interleave bytes from Low-Order ODUk words into High-Order ODUk words.

Меthоd аnd аppаrаtus fоr trаnspоrting а сliеnt lауеr signаl оvеr аn оptiсаl trаnspоrt nеtwоrk (ОТN)

In оrdеr tо fасilitаtе thе trаnspоrt оf 1 Gbit/s Еthеrnеt signаls оvеr аn Оptiсаl Тrаnspоrt Nеtwоrk using thе Оptiсаl Тrаnspоrt Нiеrаrсhу аs spесifiеd bу IТU-Т G.709, а nеw ОТН еntitу rеfеrrеd tо аs Оptiсаl Сhаnnеl Dаtа Unit-0 (ОDU0, 101) with а саpасitу оf аpprохimаtеlу 1.22 Gbit/s is dеfinеd. Тhis nеw еntitу fits pеrfесtlу intо thе ехisting ОТН multiplехing struсturе, аllоwing thе trаnspоrt оf twо timеs а 1 Gbit/s Еthеrnеt сliеnt lауеr signаl within thе саpасitу оf оnе ОDU1 (110), whilе bеing individuаllу switсhаblе. А 1 Gbit/s Еthеrnеt signаl (102) саn bе mаppеd intо thе ОDU0 pауlоаd (103) using thе Тrаnspаrеnt Gеnеriс Frаming Рrосеdurе (GFР-Т) еnсаpsulаtiоn tесhniquе аs spесifiеd in Rес. G.7041.

Меthоd аnd аppаrаtus fоr trаnspоrting а сliеnt lауеr signаl оvеr аn оptiсаl trаnspоrt nеtwоrk (ОТN)

In оrdеr tо fасilitаtе thе trаnspоrt оf 1 Gbit/s Еthеrnеt signаls оvеr аn Оptiсаl Тrаnspоrt Nеtwоrk using thе Оptiсаl Тrаnspоrt Нiеrаrсhу аs spесifiеd bу IТU-Т G.709, а nеw ОТН еntitу rеfеrrеd tо аs Оptiсаl Сhаnnеl Dаtа Unit-0 (ОDU0, 101) with а саpасitу оf аpprохimаtеlу 1.22 Gbit/s is dеfinеd. Тhis nеw еntitу fits pеrfесtlу intо thе ехisting ОТН multiplехing struсturе, аllоwing thе trаnspоrt оf twо timеs а 1 Gbit/s Еthеrnеt сliеnt lауеr signаl within thе саpасitу оf оnе ОDU1 (110), whilе bеing individuаllу switсhаblе. А 1 Gbit/s Еthеrnеt signаl (102) саn bе mаppеd intо thе ОDU0 pауlоаd (103) using thе Тrаnspаrеnt Gеnеriс Frаming Рrосеdurе (GFР-Т) еnсаpsulаtiоn tесhniquе аs spесifiеd in Rес. G.7041.

Меthоd аnd аppаrаtus fоr trаnspоrting а сliеnt lауеr signаl оvеr аn оptiсаl trаnspоrt nеtwоrk (ОТN)

In оrdеr tо fасilitаtе thе trаnspоrt оf 1 Gbit/s Еthеrnеt signаls оvеr аn Оptiсаl Тrаnspоrt Nеtwоrk using thе Оptiсаl Тrаnspоrt Нiеrаrсhу аs spесifiеd bу IТU-Т G.709, а nеw ОТН еntitу rеfеrrеd tо аs Оptiсаl Сhаnnеl Dаtа Unit-0 (ОDU0, 101) with а саpасitу оf аpprохimаtеlу 1.22 Gbit/s is dеfinеd. Тhis nеw еntitу fits pеrfесtlу intо thе ехisting ОТН multiplехing struсturе, аllоwing thе trаnspоrt оf twо timеs а 1 Gbit/s Еthеrnеt сliеnt lауеr signаl within thе саpасitу оf оnе ОDU1 (110), whilе bеing individuаllу switсhаblе. А 1 Gbit/s Еthеrnеt signаl (102) саn bе mаppеd intо thе ОDU0 pауlоаd (103) using thе Тrаnspаrеnt Gеnеriс Frаming Рrосеdurе (GFР-Т) еnсаpsulаtiоn tесhniquе аs spесifiеd in Rес. G.7041.

System and method for performing rate adaptation of constant bit rate (CBR) client data with a variable number of idle blocks for transmission over a metro transport network (MTN)

A system and method for performing rate adaptation of constant bit rate (CBR) client data for transmission over a Metro Transport Network (MTN) by defining a plurality of pseudo-Ethernet packets at a source node, assembling a plurality of Generic Mapping Procedure (GMP) frames by mapping a plurality of blocks from a stream of encoded blocks of CBR client data, a plurality of pad blocks, and GMP overhead into consecutive pseudo-Ethernet packets of the plurality of pseudo-Ethernet packets, inserting a variable number of idle blocks between one or more of the consecutive pseudo-Ethernet packets and inserting an MTN path overhead (POH) frame that is aligned to the plurality of GMP frames to generate a plurality of rate adapted GMP frames for transmission over the MTN to an intermediate node or a sink node.

Optical transmission device, scambling method, and descrambling method

A first header-attaching unit attaches to data of a low speed bit rate A, a header of the bit rate A. A second header-attaching unit attaches the header of the bit rate A to data of a high speed bit rate B. A combining unit combines outputs of the first and the second header-attaching units. A low speed scrambling unit performs a scrambling process on combined data by using a clock corresponding to the bit rate A. A high speed scrambling unit performs a scrambling process on the data of the bit rate B by using a clock corresponding to the bit rate B. During a timing corresponding to the bit rate A in the frame, a selector selects an output of the low speed scrambling unit. During a timing corresponding to the bit rate B in the frame, the selector selects an output of the high speed scrambling unit.

DYNAMIC HITLESS RESIZING IN OPTICAL TRANSPORT NETWORKS

The invention relates to techniques for contro lling a dynamic hitless resizing in data transport networks. According to a method aspect of the invention, a network connection comprises M tributary slots d efined in a payload area of a higher order transport scheme of the data transport network and the method comprises the steps of rec eiving a connection re size control si gnal at each of the nodes along the path of the network connection; ad ding at each node along the path in response to the connection resize control signal a second set of N tributary slots to the first set of the M tributary slots, such that the network connection comprises M+N tributary slots; and increasing, after M+N tributary slots are av ailable for the network connection at each node along the path, a transport data rate of the network connection.

Device for realizing multipath multiple data service aggregated transmission and its method

SIGNAL BLOCK SEQUENCE PROCESSING METHOD AND SIGNAL BLOCK SEQUENCE PROCESSING DEVICE

A signal block sequence processing method, which makes it possible to make use of a standard existing system even in the case where there is a difference in interface speed between a LAN and a WAN, deletes a signal block header from each of sequences of signal block (B) comprised of signal block headers (Bch, Bdh) to identify whether a signal block payload is a control block payload (Bc') that stores a control code or a data block payload (Bd') that stores data, collectively makes one group (G), gives the control block payload in the group position identification information to identify a position of the control block payload in the group, rearranges a signal block payload in compliance with the signal block payload rearrangement rule known on a receiving side, stores the rearranged signal block payload at a super block payload (Sc), and outputs a super block (S) to which a super block header (Shc) to identify the inclusion of the control block payload is added.

METHOD FOR DATA TRANSMISSION IN AN OPTICAL TRANSPORT NETWORK

It is disclosed a method for data transmission in an optical transport network, comprising the steps of - receiving client data from a client, - mapping said client data into a frame structure (ODU-flex), - mapping said frame structure (ODU-flex) info tributary slots (TS) of a data transport structure (HO-ODU), - transmitting said data transport structure (HO-ODU), wherein said data transport structure (HO-ODU) contains a fixed number of tributary slots (TS), and wherein the size of said frame structure (ODU-flex) is selectable in granularity of said tributary slots (TS) of said data transport structure (HO-ODU).

METHOD FOR AGGREGATING MULTIPLE CLIENT SIGNALS INTO A GENERIC FRAMING PROCEDURE (GFP) PATH

Used bandwidth counts for each of multiple client streams are maintained. A used bandwidth count for a client stream is increased when data from the client stream is put in a Generic Framing Procedure (GFP) frame onto the GFP path and is decreased once every time period by allocated bandwidth credits value. The used bandwidth count for a client stream is compared with a bandwidth limit before sending data in the client stream in a GFP frame onto the GFP path.

Optical channel data unit (ODU) fault propagation and link recovery using ODU-delay measurement

In some embodiments, a system includes a first router and a second router both configured to be included within an OTN. The first router is configured to send to the second router a first signal having an ODU with a path delay measurement (DMp) bit set. The first router is configured to, in response to not receiving within a path-length-dependent time period from the second router a second signal having the DMp bit set, (1) trigger a protection action at the first router, and (2) send to the second router a signal configured to notify the second router to trigger the protection action at the second router. The second router is configured to, in response to receiving the signal configured to notify, trigger the protection action at the second router.

Method and apparatus for sending service, method and apparatus for receiving service, and network system

Embodiments of the present invention disclose a method and an apparatus for sending a service, a method and an apparatus for receiving a service, and a network system. The method for sending a service includes: obtaining, by a transmit end device, an original data stream; inserting a quantity mark k into the original data stream, to generate a first data stream, where the quantity mark k is a quantity of first data units in the original data stream, and k is greater than or equal to 0; and sending the first data stream.

TRANSMITTING AND RECEIVING SYNCHRONIZATION DATA

Methods and apparatus are provided for transmitting synchronization data over a FlexE communications link. In an example aspect, a method of transmitting synchronization data over a FlexE communications link includes, in response to a synchronization event, selecting a next slot of the FlexE communications link that is unallocated or is allocated to a FlexE client, and transmitting synchronization data associated with the synchronization event in the selected slot. 1. A method of transmitting synchronization data over a FlexE communications link , the method comprising:in response to a synchronization event, selecting a next slot of the FlexE communications link that is one of unallocated and allocated to a FlexE client; andtransmitting synchronization data associated with the synchronization event in the selected slot.2. The method of claim 1 , wherein selecting the next slot that is one of unallocated and allocated to a FlexE client comprises selecting the next slot that does not include FlexE overhead data.3. The method of claim 1 , wherein selecting the next slot that is one of unallocated and allocated to a FlexE client comprises selecting the next slot that does not include other synchronization data.4. The method of claim 1 , comprising claim 1 , if the selected slot is not the next slot following the synchronization event claim 1 , including an indication in the synchronization data that indicates an offset between the next slot following the synchronization event and the selected slot.5. The method of claim 1 , comprising including an indication in the synchronization data that indicates an offset between the synchronization event and the selected slot.6. The method of claim 4 , wherein the offset indicates a number of slots between the next slot following the synchronization event and the selected slot.7. The method of claim 1 , wherein selecting the next slot that is one of unallocated and allocated to a FlexE client comprises selecting the next slot that ...

Method and apparatus for generating resize control overhead in optical transport network

There is provided a source node apparatus including: a Bandwidth Resize (BWR) generator configured to insert an InRP signal and an InTSCC signal into OPUflex Resize Control Overhead (RCOH) and to transmit the resultant OPUflex RCOH; and a BWR relay generator configured to insert an Resizing Protocol indicator (RP) signal and a Tributary Slot Connectivity Check (TSCC) signal into higher order OPUk RCOH with reference to the InRP signal and the InTSCC signal included in the OPUflex RCOH transmitted by the BWR generator, and transmit the resultant higher order OPUk RCOH.

Client signal accommodating multiplexing apparatus and method

In an apparatus for accommodating and multiplexing asynchronous client signals in which an idle signal is defined, the transmission side transmits client signals after synchronizing the client signals by inserting or removing, with reference to a specific client signal, an idle signal to/from the same type of another client signal, and in the receiving side, a PLL part is shared by recovering a clock from a client signal and distributing the clock for another client signal.

Method and apparatus for transporting client signals in an optical transport network

Method and apparatus for transporting client signals in an OTN are illustrated. In one embodiment, the method includes: mapping a client signal into a first Optical Channel Data Tributary Unit (ODTU) frame including an ODTU payload area and an ODTU overhead area, such that a plurality of n-bit data units of the client signal are inserted into the ODTU payload area and number information is inserted into the ODTU overhead area; mapping the first ODTU frame into the OPUk frame, such that the plurality of n-bit data units are mapped into an OPUk payload part occupying at least one Tributary Slot (TS) of the OPUk payload area and the number information of the ODTU overhead area is mapped into a first OPUk overhead part of the OPUk frame; forming an Optical Channel Transport Unit-k (OTUk) frame including the OPUk frame for transmission.

Service processing method and apparatus

Embodiments provide a service processing method and apparatus. According to the service processing method, a number of code blocks of a client service may be mapped to a FlexE subslot, and a FlexE subslot overhead is generated, so that the client service mapped to the FlexE subslot and the FlexE subslot overhead are sent through a physical channel, and a low-rate service is carried. Compared with carrying a low-rate service by directly using an entire FlexE slot, carrying the client service by using a number of FlexE subslots into which the FlexE slot is divided can improve bandwidth utilization.

DATA CENTER CONNECTIVITY SYSTEMS AND METHODS THROUGH PACKET-OPTICAL SWITCHES

A data center network includes a plurality of packet-optical switches each at a location in the data center network and each including a switch fabric comprising both a Layer 1 fabric and a packet fabric communicatively coupled to one or more line ports; wherein the plurality of packet-optical switches are communicatively coupled to one another in a topology to form data connectivity in the data center network, and wherein each of the plurality of packet-optical switches is configured to provide the data connectivity through the Layer 1 switch bypassing the packet fabric when the location does not require Layer 2 forwarding in the topology, and provide the data connectivity through the Layer 1 switch and using the packet fabric to provide the data service with multi-point connectivity when the location requires Layer 2 forwarding in the topology. 1. A data center network , comprising:a plurality of packet-optical switches each at a location in the data center network and each comprising a switch fabric comprising both a Layer 1 fabric and a packet fabric communicatively coupled to one or more line ports;wherein the plurality of packet-optical switches are communicatively coupled to one another in a topology to form data connectivity in the data center network, and provide the data connectivity through the Layer 1 switch bypassing the packet fabric when the location does not require Layer 2 forwarding in the topology, and', 'provide the data connectivity through the Layer 1 switch and using the packet fabric to provide the data service with multi-point connectivity when the location requires Layer 2 forwarding in the topology., 'wherein each of the plurality of packet-optical switches is configured to'}2. The data center network of claim 1 , further comprising:a plurality of servers at the locations interconnected to one another via the data connectivity, wherein the data center network comprises a distributed data center.3. The data center network of claim 3 , ...

Transmission device and transmission system

A transmission device includes: a signal receiving part configured to receive a time division multiplexing signal in which a plurality of packets are stored; a separating part configured to separate the plurality of packets from the time division multiplexing signal; an assigning part configured to assign an identifier corresponding to a stored position in the time division multiplexing signal to each of the plurality of packets; and a packet transmitting part configured to transmit at least two packets having different identifiers out of the plurality of packets through a common transmission path.

DYNAMIC HITLESS RESIZING IN OPTICAL TRANSPORT NETWORKS

The invention relates to techniques for controlling a dynamic hitless resizing in data transport networks. According to a method aspect of the invention, a network connection comprises M tributary slots defined in a payload area of a higher order transport scheme of the data transport network and the method comprises the steps of receiving a connection resize control signal at each of the nodes along the path of the network connection; adding at each node along the path in response to the connection resize control signal a second set of N tributary slots to the first set of the M tributary slots, such that the network connection comprises M+N tributary slots; and increasing, after M+N tributary slots are available for the network connection at each node along the path, a transport data rate of the network connection. 1receiving, by an ingress end node, a connection resize control signal CTRL ADD;adding a set of N tributary slots to a set of M tributary slots; andincreasing, a bandwidth of the signal passing through the network connection, after M+N tributary slots are available for the ODUflex network connection at each node along a path in a manner synchronized with a downstream node by passing a tributary slot connectivity check (TSCC) signal;wherein the path of the ODUflex network connection extends between two connection end nodes, or extends over one or more intermediate nodes of the data transport network;wherein the ODUflex network connection transports data of client services in transport frames from the ingress end node to an egress end node; andwherein the ODUflex network connection comprises the set of the M tributary slots defined in a payload area of a higher order transport scheme of the data transport network.. A method for controlling dynamic hitless resizing of an Optical Data Unit flex (ODUflex) network connection in a data transport network, when the ODUflex network connection is to be incremented, the method comprising: This application is a ...

Data Sending Method and Forwarding Device

A data sending method includes receiving, by a forwarding device using a first flexible Ethernet (FlexE) group and in multiple timeslots included in a first timeslot set, multiple first encoded data blocks from a physical coding sublayer (PCS), determining, by the forwarding device according to the timeslots included in the first timeslot set and the first FlexE group, a second FlexE group and multiple timeslots included in a second timeslot set, and sending, by the forwarding device, the first encoded data blocks using the second FlexE group and in the timeslots included in the second timeslot set. 1. A data transmitting method , implemented by a forwarding apparatus , comprising:receiving, in a first timeslot, a first encoded data block of a Flexible Ethernet (FlexE) client using a first FlexE group, wherein the first FlexE group comprises at least one first send physical layers (PHYs) and at least one first receive PHYs, wherein the at least one first send PHYs is bonded to the at least one first receive PHYs in the first FlexE group, and wherein the forwarding apparatus comprises the at least one first receive PHYs; andsending, in a second timeslot and without performing layer 2 or layer 3 processing on the FlexE client between receiving the first encoded data block and sending the first encoded data block, the first encoded data block using a second FlexE group,wherein the second FlexE group comprises at least one second send PHYs and at least one second receive PHYs,wherein the at least one second send PHYs is bonded to the at least one second receive PHYs in the second FlexE group, andwherein the forwarding apparatus comprises the at least one second send PHYs.2. The data transmitting method of claim 1 , wherein before sending the first encoded data block claim 1 , the method further comprises determining the second FlexE group and the second timeslot based on a mapping relationship between the first timeslot and the second timeslot.3. The data transmitting ...

Data transmission method and apparatus

This application provides data transmission methods and apparatuses. One method includes: processing, by a network device, a first optical data unit (ODU) to obtain a second ODU, wherein a bit rate of the second ODU is lower than a bit rate of the first ODU; and sending, by the network device, the second ODU.

Method and apparatus for adjusting bandwidth of transmission channel in flexible ethernet

This application discloses a method and an apparatus for adjusting a bandwidth of a transmission channel in flexible Ethernet. When the bandwidth of the transmission channel needs to be increased, bandwidths of all nodes are successively increased based on a direction reverse to a flow direction of service data, and when the bandwidth of the transmission channel needs to be decreased, bandwidths of all nodes are successively decreased based on the flow direction of the service data. In this way, a probability of a loss of service data transmitted from upstream to downstream is reduced in a process of adjusting the bandwidth of the transmission channel, and this improves reliability of service data transmission.

DYNAMIC HITLESS RESIZING IN OPTICAL TRANSPORT NETWORKS

The invention relates to techniques for controlling a dynamic hitless resizing in data transport networks. According to a method aspect of the invention, a network connection comprises M tributary slots defined in a payload area of a higher order transport scheme of the data transport network and the method comprises the steps of receiving a connection resize control signal at each of the nodes along the path of the network connection; adding at each node along the path in response to the connection resize control signal a second set of N tributary slots to the first set of the M tributary slots, such that the network connection comprises M+N tributary slots; and increasing, after M+N tributary slots are available for the network connection at each node along the path, a transport data rate of the network connection. 1. A method for controlling dynamic hitless resizing of an Optical Data Unit flex (ODUflex) network connection in a data transport network , wherein the ODUflex network connection comprises a set of M tributary slots; the method comprising:receiving a connection resize control signal;adding a set of N tributary slots to the set of the M tributary slots; andincreasing a bandwidth of the ODUflex network connection; wherein M and N are positive integers.2. The method according to claim 1 , further comprising:initiating sending of a data rate control signal hop-by-hop along a path of the ODUflex network connection, wherein the data rate control signal is discarded by a node which has not finished the adding the N tributary slots or marking for removal of the N tributary slots; andreceiving an acknowledgement to the data rate control signal from an egress end node.3. A method for controlling dynamic hitless resizing of an Optical Data Unit flex (ODUflex) network connection in a data transport network claim 1 ,wherein a path of the ODUflex network connection extends between two connection end nodes or over one or more intermediate nodes of the data transport ...

Client signal transmission method, device and system and computer-readable storage medium

Provided are a client signal transmission method, apparatus and system and a computer-readable storage medium. The method includes mapping a client signal into a predetermined container corresponding to the client signal; mapping the predetermined container into the corresponding number of first code blocks in a payload area of an optical transport network frame and inserting special idle code blocks during the mapping for rate compensation, where the first code blocks are obtained by dividing the payload area of the optical transport network frame; and sending the optical transport network frame carrying the predetermined container and configuration information of the predetermined container.

Method and apparatus for transmitting configuration information, storage medium, and system

Provided are a method and apparatus for transmitting configuration information, a storage medium and a system. The method for transmitting configuration information includes: mapping a client signal into a predetermined container corresponding to the client signal; encoding configuration information of the predetermined container according to a predetermined format; and sending the optical transport network frame that carries the predetermined container and the encoded configuration information of the predetermined container in the payload area.

Data Transmission Method, Data Receiving Method, and Data Sending and Receiving System

A method includes: generating indication information, where the indication information is used to indicate a resource allocation table corresponding to a first data unit in the plurality of data units; sending the indication information in a timeslot previous to a timeslot used to send the first data unit; and sending the plurality of data units, where a resource allocation table corresponding to each data unit is selected from a plurality of resource allocation tables in a cyclic manner, and a cyclically initial resource allocation table is the resource allocation table indicated by the indication information. 110.-. (canceled)11. A method , comprising:receiving indication information, wherein the indication information indicates a first resource allocation table corresponding to a first data unit in a plurality of data units; andconsecutively receiving the plurality of data units, wherein for each data unit of the plurality of data units a respective resource allocation table corresponding to the respective data unit is selected from a plurality of resource allocation tables in a cyclic manner, and an initially selected resource allocation table is the first resource allocation table indicated by the indication information.12. The method according to claim ii , wherein before receiving the indication information , the method further comprises:setting the plurality of resource allocation tables, wherein the plurality of resource allocation tables indicate timeslot allocation on a same physical link.13. The method according to claim ii , wherein for each data unit of the plurality of data units the respective resource allocation table corresponding to the respective data unit being selected from the plurality of resource allocation tables in the cyclic manner comprises:the first resource allocation table being selected to use in a first plurality of consecutive timeslots, and a second resource allocation table of the plurality of resource allocation tables being ...

METHOD AND APPARATUS FOR TRANSPORTING CLIENT SIGNALS IN AN OPTICAL TRANSPORT NETWORK

Method and apparatus for transporting client signals in an OTN are illustrated. In one embodiment, the method includes: mapping a client signal into a first Optical Channel Data Tributary Unit (ODTU) frame including an ODTU payload area and an ODTU overhead area, such that a plurality of n-bit data units of the client signal are inserted into the ODTU payload area and number information is inserted into the ODTU overhead area; mapping the first ODTU frame into the OPUk frame, such that the plurality of n-bit data units are mapped into an OPUk payload part occupying at least one Tributary Slot (TS) of the OPUk payload area and the number information of the ODTU overhead area is mapped into a first OPUk overhead part of the OPUk frame; forming an Optical Channel Transport Unit-k (OTUk) frame including the OPUk frame for transmission. 1. A method for transmitting a client signal in an Optical Transport Network (OTN) , comprising:determining number information of data units of the client signal;inserting the number information into an overhead of a first Optical Channel Data Tributary Unit (ODTU) frame and mapping the data units of the client signal into a payload area of a second ODTU frame following the first ODTU frame, wherein the number information indicates the number of data units mapped into the second ODTU frame;mapping the second ODTU frame into one or more Tributary Slot (TS) of an Optical Channel Payload Unit-k (OPUk) frame;mapping the OPUk frame into an Optical Channel Transport Unit-k (OTUk) frame; andsending the OTUk frame.2. The method of claim 1 , wherein the client signal is an Optical Data Channel Unit j (ODUj) claim 1 , where j is smaller than k.3. The method of claim 1 , wherein the payload area of the second ODTU frame consists of 4n rows and int(3808/n) columns claim 1 , n indicating the number of the multiple TSs.4. The method of claim 1 , wherein the OPUk frame comprises a OPUk overhead and the OPUk overhead includes a multiframe indicator that ...

Data Processing Method, Communications Device, and Communications System

A data processing method, a communications device, and a communications system, where in a process of transmitting a packet service, a code block stream carrying the packet service is first obtained, then, rate adaptation is performed on the obtained code block stream, and finally, the rate-adapted code block stream is mapped to an optical channel payload unit (OPU) signal. Compared with a mapping manner in which a Generic Framing Procedure (GFP) is used, the data processing method, the communications device, and the communications system feature low processing complexity and/or high bandwidth utilization. 1. A data processing method , optical transport network (OTN) , comprising:obtaining, by an optical device, a code block stream a packet service;performing, by the optical device, rate adaptation on the obtained code block stream; andmapping, by the optical device, the rate-adapted code block stream to an optical channel payload unit (OPU) signal.2. The method according to claim 1 , wherein performing the rate adaptation on the obtained code block stream comprises at least one of inserting an idle code block into the obtained code block stream claim 1 , wherein the idle code block comprises an idle code block type indicator claim 1 , wherein the idle code block does not carry the packet service claim 1 , and wherein a quantity of to-be-mapped code blocks in the rate-adapted code block stream within each OPU frame period is equal to a preset value (C).3. The method according to claim 1 , wherein mapping claim 1 , the rate-adapted code block stream to the OPU signal comprises:{'sub': m', 'm, 'mapping Ccode blocks to one OPU frame within each OPU frame period; and inserting the Cinto an overhead of the corresponding OPU frames, and'}{'sub': 'm', 'wherein the Ccomprises a quantity of to-be mapped code blocks in the rate-adapted code block stream.'}4. The method according to claim 1 , wherein mapping claim 1 , the rate-adapted code block stream to the OPU signal ...

Service Transmission Method And First Transmission Device

A service transmission method and a transmission device are disclosed. The method includes: mapping n client signals with a rate of t to ms/t load subareas of m lanes of flexible optical transport network (FlexO) frames, where a payload area of each of the m lanes of FlexO frames is divided into s/t load subareas, and each lane is transmitted using a FlexO lane with a transmission rate of s; configuring a FlexO type, timeslot overhead, and signal mapping information for each lane; and transmitting the m lanes of FlexO frames to a second transmission device by using m FlexO lanes with the transmission rate of s. The second transmission device is configured to parse, according to the FlexO type, the timeslot overhead, and the signal mapping information, the client signals carried in the ms/t load subareas.

Flexible ethernet and multi link gearbox mapping procedure to optical transport network

A flexible mapping method to map a Physical Coding Sublayer (PCS) structure from Flexible Ethernet and/or Multi Link Gearbox (MLG) to Optical Transport Network (OTN), includes receiving one or more Virtual Lanes; and mapping each of the one or more Virtual Lanes into a Tributary Slot, wherein a rate and number of the Tributary Slot(s) in OTN is set based on a rate and number of the one or more Virtual Lanes. A transport system and a flexible de-mapping method are also described. The systems and methods map the generalized MLG-style group of lanes (virtual PHYs/PMDs) into an OPUflex Tributary Slot (TS) structure, keeping PCS structures intact, and creates a single ODUflex container with a matching rate of FlexE for end-to-end flow.

Transparent deployment of packet services using optical transport network

A method is disclosed for use by a network element coupled with an optical transport network. The method comprises calculating an optical path from a first packet-terminated optical interface of the network element to a second packet-terminated optical interface of a destination network element coupled with the optical transport network, and signaling the optical transport network to create the optical path. The method further comprises creating an Ethernet interface corresponding to the first packet-terminated optical interface, and adding the Ethernet interface to an Ethernet bundle interface. The method further comprises communicating across the optical path using addressing of the Ethernet bundle interface.

Method and apparatus for transmitting data in optical transport network

A method of transmitting data in an optical transport network is provided. The method comprises generating an optical transmission unit frame including an in-band area including a first area to which information data is allocated and a second area to which the information data is not allocated and an out-band area including parity information and transmitting the data through the optical transmission unit frame.

METHOD AND APPARATUS FOR SENDING AND RECEIVING CLOCK SYNCHRONIZATION PACKET

This disclosure provides a method for sending and receiving a clock synchronization packet in FlexE. The method includes: generating, by a sending apparatus, indication information and a plurality of data blocks, where the plurality of data blocks are obtained by encoding a first clock synchronization packet, the indication information is used to indicate a first data block, and the first data block is a data block used for timestamp sampling in the plurality of data blocks; determining, by the sending apparatus, according to the indication information, a moment at which the first data block arrives at a medium dependent interface MDI of the sending apparatus, and generating a sending timestamp, where the sending timestamp is used to record a sending moment of the first clock synchronization packet; generating a second clock synchronization packet carrying the sending timestamp; and sending, by the sending apparatus, the second clock synchronization packet. 1. A method for sending a clock synchronization packet in flexible Ethernet (FlexE) , comprising:encoding a clock synchronization packet;generating a plurality of data blocks including a first data block for data sampling based on the encoded clock synchronization packet; andtransmitting the plurality of data blocks in a client payload of FlexE.2. The method according to claim 1 , including generating indication information to trigger sampling of the first data block.3. The method according to claim 2 , wherein the indication information comprises one of out-of-band information or in-band information.4. The method according to claim 2 , wherein the indication information indicates a data block associated with a start-of-frame delimiter claim 2 , SFD.5. The method according to claim 4 , wherein the indication information indicates a data block corresponding to the SFD claim 4 , or claim 4 , the indication information indicates a data block corresponding to a first symbol after the SFD.6. The method according to ...

Data forwarding method and device

This application discloses a data forwarding method and device. The method includes: obtaining a first data unit sequence stream by using a first logical ingress port, where the first data unit sequence stream includes at least one first data unit; determining, according to a preconfigured mapping relationship between at least one logical ingress port and at least one logical egress port, a first logical egress port corresponding to the first logical ingress port, where the at least one logical ingress port includes the first logical ingress port; adjusting a quantity of idle units in the first data unit sequence stream, so that a rate of an adjusted first data unit sequence stream matches a rate of the first logical egress port; and sending the adjusted first data unit sequence stream by using the first logical egress port.

Method And Apparatus For Processing Bit Block Stream, Method And Apparatus For Rate Matching Of Bit Block Stream, And Method And Apparatus For Switching Bit Block Stream

Embodiments of the present invention provide a method for processing a bit block stream, including: obtaining a first to-be-processed bit block stream; and mapping the first to-be-processed bit block stream into at least two slot hit block streams, the at least two slot bit block streams include a first slot bit block stream and a second slot bit block stream, the first slot bit block stream includes a first boundary bit block and a second boundary bit block, the second slot bit block stream includes a third boundary bit block and a fourth boundary bit block, N first hit blocks exist between the first boundary bit block and the second boundary bit block, N first bit blocks exist between the third boundary bit block and the fourth boundary bit block, the first bit block is a non-idle bit block.

Method and Apparatus for Transmitting a Signal in Optical Transport Network

A method for low-rate signal transmission on Optical Transport Networks is provided. In the method, a signal is mapped to a low-rate OPU of a low-rate ODU, wherein the low-rate ODU comprises an ODU overhead section and the low-rate OPU, the low-rate OPU comprises an OPU overhead section and an OPU payload section, the low-rate ODU has a bit rate of 1, 244, 160 Kbps±20 ppm, and the OPU payload section has a bit rate of 1, 238, 954.31 Kbps±20 ppm; OPU overhead bytes and ODU overhead bytes are added to corresponding overhead section; then, the low-rate ODU is multiplexed to an Optical channel Data Unit-k (ODUk) that has a bit rate higher than the bit rate of the low-rate ODU; finally, the ODUk is transmitted via the OTN. 1. A method for transmitting a signal in an Optical Transport Network (OTN) , comprising:mapping the signal to a low-rate Optical channel Payload Unit (OPU) of a low-rate Optical channel Data Unit (ODU), wherein the low-rate ODU comprises an ODU overhead section and the low-rate OPU, the low-rate OPU comprises an OPU overhead section and an OPU payload section, the low-rate ODU has a bit rate of 1, 244, 160 Kbps±20 ppm, and the OPU payload section has a bit rate of 1, 238, 954.31 Kbps±20 ppm;generating OPU overhead bytes and filling the OPU overhead bytes into the OPU overhead section of the low-rate OPU;generating ODU overhead bytes and filling the ODU overhead bytes into the ODU overhead section of the low-rate ODU;multiplexing the low-rate ODU to an Optical channel Data Unit-k (ODUk), wherein the ODUk has a bit rate higher than the bit rate of the low-rate ODU; andtransmitting the ODUk via the OTN.2. The method according to claim 1 , the low-rate ODU has a size of 4×3 claim 1 ,824 bytes claim 1 , and the OPU payload section has a size of 4×3 claim 1 ,808 bytes.3. The method according to claim 1 , wherein the step of multiplexing the low-rate ODU to the ODUk comprising:mapping the low-rate ODU into a payload section of an ODTU;mapping the payload ...

Method, Device and System for Synchronization Message Transmission

A method, device and system for synchronization message transmission are provided. The method may include that: a transmitting end selects at least one Ethernet Physical Layer Link (PHY) for synchronization message transmission from a Flexible Ethernet (FlexE) group (S201); after encapsulating the synchronization message according to a preset encapsulation strategy, the transmitting end inserts the synchronization message into a synchronization message channel in overhead of the selected Ethernet PHY (S202); and the transmitting end transmits the synchronization message through the selected Ethernet PHY (S203).

Method and device for transparently transmitting service frequency

This application provides a method and device for transparently transmitting a service frequency, where the method includes: determining, by a first device, first service frequency information Xn, where the first service frequency information Xn is used to indicate an amount of n-bit first service data that is sent by the first device within first statistical duration, and a sending frequency of the first device is used as a reference for the first statistical duration; and encapsulating, by the first device, the first service frequency information Xn into a first S/T bit code block, inserting the first S/T bit code block into a data stream of the first service data, and sending the data stream of the first service data to a second device.

DATA SENDING METHOD AND APPARATUS, AND FLEXE SWITCHING SYSTEM

This application discloses a data sending method and apparatus, and a FlexE switching system. When slice packets received by a sending module include a SOP flag and a EOP flag of a same data packet, it indicates that the sending module receives a complete data packet, and immediately sends data packet slices, or sends the data packet slices after a latency of first preset duration. In this way, a stream inside the data packet is not interrupted, a data sending latency is reduced, and transmission efficiency is improved. When the slice packets received by the sending module include a SOP flag of a data packet but do not include a EOP flag of the data packet, it indicates that the sending module has not received a complete data packet, and then sends data packet slices after a latency of second preset duration longer than the first preset duration. 1. A data sending method , applied to a sending module in a FlexE switching system , wherein the method comprises:receiving several slice packets;checking whether the several slice packets comprise a SOP flag and an EOP flag;when the several slice packets comprise a SOP flag and an EOP flag of a same data packet, restoring data packet slices in the several slice packets to a FlexE data stream, and sending the FlexE data stream, or when a latency is greater than or equal to first preset duration, restoring data packet slices in the several slice packets to a FlexE data stream, and sending the FlexE data stream; andwhen the several slice packets comprise a SOP flag of a data packet but do not comprise a EOP flag of the data packet, restoring data packet slices in the several slice packets to a FlexE data stream and sending the FlexE data stream when a latency reaches second preset duration, whereinthe first preset duration is less than the second preset duration.2. The method according to claim 1 , wherein the restoring data packet slices in the several slice packets to a FlexE data stream and sending the FlexE data stream ...

GRID NETWORK FOR LAYER ONE OPTICAL CONNECTIVITY FROM EDGE TO CLOUD

The disclosed technology is generally directed to optical networking. In one example of the technology, a layer one optical connection between an edge node and a first cloud data center node along a reserved spectrum is controlled. Controlling the layer one optical connection between the edge node and the first cloud data center node includes controlling photonics along the reserved spectrum in an optical path from the edge node to a stub of an optical route node. The optical route node is in an optical route between the first cloud data center node and a second cloud data center node. Controlling the layer one optical connection between the edge node and the first cloud data center node also includes controlling photonics along the reserved spectrum from the optical route node to the first data center node. 1. An apparatus , comprising: controlling photonics along the reserved spectrum in an optical path from the edge node to a stub of an optical route node, wherein the optical route node is in an optical route between the first cloud data center node and a second cloud data center node; and', 'controlling photonics along the reserved spectrum from the optical route node to the first data center node., 'controlling a layer one optical connection between an edge node and a first cloud data center node along a reserved spectrum, such that controlling the layer one optical connection between the edge node and the first cloud data center node includes, 'a device including at least one memory adapted to store run-time data for the device, and at least one processor that is adapted to execute processor-executable code that, in response to execution, enables the device to perform actions, including2. The apparatus of claim 1 , wherein the optical route includes a plurality of in-line amplifiers (ILAs) including a first ILA claim 1 , and wherein the optical route node is associated with the first ILA.3. The apparatus of claim 1 , wherein the optical route is an open ...

METHOD AND APPARATUS FOR TRANSPORTING CLIENT SIGNALS IN AN OPTICAL TRANSPORT NETWORK

Method and apparatus for transporting client signals in an MN are illustrated. In one embodiment, the method includes: mapping a client signal into a first Optical Channel Data Tributary Unit (ODTU) frame including an ODTU payload area and an ODTU overhead area, such that a plurality of n-bit data units of the client signal are inserted into the ODTU payload area and number information is inserted into the ODTU overhead area; mapping the first ODTU frame into the OPUk frame, such that the plurality of n-bit data units are mapped into an OPUk payload part occupying at least one Tributary Slot (TS) of the OPUk payload area and the number information of the ODTU overhead area is mapped into a first OPUk overhead part of the OPUk frame; forming an Optical Channel Transport Unit-k (OTUk) frame including the OPUk frame for transmission. 1. A method for transmitting client signals in an Optical Transport Network (OTN) , comprising:mapping a client signal into a first Optical Channel Data Tributary Unit (ODTU) frame including an ODTU payload area and an ODTU overhead area, such that a plurality of n-bit data units of the client signal are inserted into the ODTU payload area and number information is inserted into the ODTU overhead area; wherein the number information indicates the number of n-bit data units to be inserted into a second ODTU frame; wherein the ODTU payload area has multiple columns and a plurality of 4 rows that depend on the number of multiple Tributary Slots (TSs) divided in an Optical Channel Payload Unit-k (OPUk) payload area of an OPUk frame, wherein the OPUk payload area includes 4 rows, 3808 columns;mapping the first ODTU frame into the OPUk frame, such that the plurality of n-bit data units are mapped into an OPUk payload part occupying at least one Tributary Slot (TS) of the OPUk payload area and the number information of the ODTU overhead area is mapped into a first OPUk overhead part of the OPUk frame;forming an Optical Channel Transport Unit-k ( ...

Method, apparatus, and system for processing data on otn optical transport network

A method for processing data on an OTN optical transport network is disclosed in embodiments of the present invention, including: receiving and buffering, through an ILK interface, an Ethernet data frame sent by an Ethernet board; encapsulating the Ethernet data frame into a Generic Framing Procedure GFP data frame; and mapping the GFP data frame to a virtual container of the OTN to form an OTN data frame, and transporting the OTN data frame to a corresponding transparent transmission board through a cross-connect board. An apparatus and a system for processing data on an OTN optical transport network are further disclosed in the embodiments of the present invention.

METHOD AND APPARATUS FOR SENDING AND RECEIVING CLOCK SYNCHRONIZATION PACKET

This application provides a method for sending and receiving a clock synchronization packet in FlexE. The method includes: generating, by a sending apparatus, indication information and a plurality of data blocks, where the plurality of data blocks are obtained by encoding a first clock synchronization packet, the indication information is used to indicate a first data block, and the first data block is a data block used for timestamp sampling in the plurality of data blocks; determining, by the sending apparatus, according to the indication information, a moment at which the first data block arrives at a medium dependent interface MDI of the sending apparatus, and generating a sending timestamp, where the sending timestamp is used to record a sending moment of the first clock synchronization packet; generating a second clock synchronization packet carrying the sending timestamp; and sending, by the sending apparatus, the second clock synchronization packet. 1. A method for sending a clock synchronization packet , comprising:generating, by a sending apparatus, indication information and a plurality of data blocks, wherein the plurality of data blocks are obtained by encoding a first clock synchronization packet, the indication information is used to indicate a first data block, and the first data block is a data block used for timestamp sampling in the plurality of data blocks;determining, by the sending apparatus, according to the indication information, a moment at which the first data block arrives at a medium dependent interface (MDI) of the sending apparatus, and generating a sending timestamp, wherein the sending timestamp is used to record a sending moment of the first clock synchronization packet;generating, by the sending apparatus, a second clock synchronization packet carrying the sending timestamp; andsending, by the sending apparatus, the second clock synchronization packet.2. The method according to claim 1 , wherein the first data block is a data ...

Method for obtaining target transmission route, related device, and system

Embodiments of this application provide a method for obtaining a target transmission route, a related device, and a system. The method is applied to a flexible Ethernet FlexE networking network and includes: receiving a first message that is sent by a second node for requesting to query for a transmission route of a first FlexE client; and sending a second message to the second node, where a route information entry in the second message includes route information of the FlexE client on each node. Ingress information and egress information that are of a FlexE client on a route node are recorded as a transmission route of each hop. A segment-to-segment transmission route in the FlexE network can be dynamically found in real time, a planned and deployed transmission route is compared with an actually found route, to evaluate a network running status.

TIMING PRESERVATION FOR NETWORK COMMUNICATIONS

Methods, systems, and apparatus for preserving timing domains of different communications types of signals in a telecommunications network are disclosed. In one aspect a network element (NE) includes a receiver configured to receive communications signals of two different communications types. The NE can include a timing analyzer configured to obtain a local reference clock (LRC), detect two different received reference clocks (RRCs) corresponding to the two different communications types, and for each received communications signal, determine a quantized value (QV) based on a difference between the LRC and the RRC. The NE can include a timing generator configured to generate, for the received communications signal, a transmit reference clock (TRC) that is referenced to, but different from, each of the LRC and the QV. The NE can include a transmitter configured to output an output signal based on the received communications signal and the TRC for the received communications signal. 1. A method comprising:obtaining, by a network element, a local reference clock (LRC) representing a timing domain of the network element;receiving, by the network element, communications signals of two different communications types;detecting, by the network element, two different received reference clocks (RRCs) representing two different timing domains corresponding to the two different communications types; determining a quantized value (QV) based on a difference between the LRC and the RRC of the timing domain for the communications type of the received communications signal;', 'generating, for the received communications signal, a transmit reference clock (TRC) that is referenced to, but different from, each of the LRC and the QV; and', 'outputting an output signal based on the received communications signal and the TRC for the received communications signal., 'for each received communications signal,'}2. The method of claim 1 , wherein determining the QV comprises determining a ...

STAIRCASE FORWARD ERROR CORRECTION CODING

In staircase forward error correction coding, a stream of data symbols are mapped to data symbol positions in a sequence of two-dimensional symbol blocks B, a positive integer. Each of the symbol blocks has data symbol positions and coding symbol positions. Coding symbols for the coding symbol positions in each symbol block Bin the sequence are computed. The coding symbols are computed such that, for each symbol block Bthat has a preceding symbol block Band a subsequent symbol block Bin the sequence, symbols at symbol positions along one dimension of the preceding symbol block B, concatenated with the data symbols and the coding symbols along the other dimension in the symbol B, form a codeword of a FEC component code, and symbols at symbol positions along the one dimension of the symbol B, concatenated with the data symbols and the coding symbols along the other dimension in the subsequent symbol block B, form a codeword of the FEC component code. Thus, each row in [BB] and each column in 1. A Forward Error Correction (FEC) encoding method of an encoding apparatus comprising a mapper and a FEC encoder operatively coupled to the mapper , the method comprising:{'sub': 'i', 'mapping a stream of data symbols to data symbol positions in a sequence of two-dimensional symbol blocks B, i a positive integer, each of the symbol blocks comprising data symbol positions and coding symbol positions; and'}{'sub': i', 'i−1', 'i+1', 'i−1', 'i', 'i', 'i+1, 'computing coding symbols for the coding symbol positions in each symbol block in the sequence, the coding symbols being computed such that, for each symbol Bthat has a preceding symbol block Band a subsequent symbol block Bin the sequence, symbols at symbol positions along one dimension of the preceding symbol block B, concatenated with the data symbols and the coding symbols along the other dimension in the symbol block B, form a codeword of a FEC component code, and symbols at symbol positions along the one dimension of the ...

Method and Apparatus for Transmitting and Receiving Client Signal

Embodiments of the present invention provide a method and an apparatus for transmitting and receiving a client signal, and relate to the field of communications technologies. The method includes mapping the client signal into channels of a parallel transmission frame, where the parallel transmission frame includes at least two channels; adding an overhead for the channels of the parallel transmission frame after the mapping, to form transmission channels of the parallel transmission frame, where bit rates of the transmission channels of the parallel transmission frame are fixed; and modulating the transmission channels of the parallel transmission frame onto one or more optical carriers in a same optical fiber, and transmitting the optical carrier after the modulation. 1. A method for transmitting a client signal , the method comprising:mapping the client signal into channels of a parallel transmission frame, wherein the parallel transmission frame comprises at least two channels;after the mapping, adding an overhead for the channels of the parallel transmission frame to form transmission channels of the parallel transmission frame, wherein a management overhead is added to one of the channels of the parallel transmission frame after the mapping;modulating the transmission channels of the parallel transmission frame onto one or more optical carriers in a same optical fiber; andtransmitting the optical carrier after the modulation.2. The method according to claim 1 , wherein a rate of the parallel transmission frame depends on a number of transmission channels of the parallel transmission frame and bit rates of the transmission channels.3. The method according to claim 2 , wherein the bit rates of the transmission channels of the parallel transmission frame are equal and the number of transmission channels of the parallel transmission frame is adjusted to form a parallel transmission frame with a changeable rate.4. The method according to claim 1 , wherein mapping ...

SIGNAL SENDING AND RECEIVING METHOD, APPARATUS, AND SYSTEM

An embodiment method includes: mapping a to-be-transmitted optical channel unit signal of n times a benchmark rate to X first optical channel physical link signals; adding a link sequence indicator overhead to each of the X first optical channel physical link signals, to generate X second optical channel physical link signals; and modulating and sending the X second optical channel physical link signals by using X preset optical modules in a one-to-one manner. A rate of the first optical channel physical link signal is mtimes the benchmark rate, n≥2, X≥2, m≥1, and 2. The method according to claim 1 , further comprising:adding a respective link group indicator to each of the plurality of FEC frames, wherein the respective link group indicator indicates whether X first optical channel physical link signals have a same source.3. The method according to claim 2 , wherein mapping the OTU signal to the plurality of FEC frames comprises:obtaining X subframes from the OTU signal; andmapping the X subframes to the plurality of FEC frames in a one-to-one correspondence manner and according to bit synchronous mapping or asynchronous mapping.4. The method according to claim 2 , further comprises:before sending the plurality of FEC frames through the plurality of optical modules, performing FEC encoding on the plurality of FEC frames.5. The method according to claim 2 , wherein:{'sub': 'i', 'each of the plurality of FEC frames has a different m.'}6. The method according to claim 1 , wherein mapping the OTU signal to the plurality of FEC frames comprises:obtaining X subframes from the OTU signal; andmapping the X subframes to the plurality of FEC frames in a one-to-one correspondence manner and according to bit synchronous mapping or asynchronous mapping.7. The method according to claim 1 , further comprises:before sending the plurality of FEC frames through the plurality of optical modules, performing FEC encoding on the plurality of FEC frames.8. The method according to claim 1 ...

Method and Apparatus for Sending Service, Method and Apparatus for Receiving Service, and Network System

Embodiments of the present invention disclose a method and an apparatus for sending a service, a method and an apparatus for receiving a service, and a network system. The method for sending a service includes: obtaining, by a transmit end device, an original data stream; inserting a quantity mark k into the original data stream, to generate a first data stream, where the quantity mark k is a quantity of first data units in the original data stream, and k is greater than or equal to 0; and sending the first data stream. 1. A method , comprising:obtaining, by a transmit end device, an original data stream;inserting, by the transmit end device, a quantity mark k into the original data stream, to generate a first data stream, wherein the quantity mark k identifies a quantity of first data units in the original data stream, and k is greater than or equal to 0;increasing or decreasing, by the transmit end device, a quantity of idle units in the first data stream; andsending, by the transmit end device, the first data stream.2. The method according to claim 1 , wherein inserting the quantity mark k into the original data stream comprises:obtaining a first segment of data stream from the original data stream;determining a quantity of first data units in the first segment of data stream; andinserting the quantity mark k at a first location in the first segment of data stream, wherein a value of the quantity mark k is equal to the quantity of first data units in the first segment of data stream, and the first location is a location of a data unit that is usable to carry the quantity mark k.3. The method according to claim 2 , wherein the first data units in the first segment of data stream comprise all data units in the first segment of data stream claim 2 , and k is an integer greater than 0.4. The method according to claim 2 , wherein the first data units in the first segment of data stream comprise an idle unit in the first segment of data stream claim 2 , and k is an ...

Data transmission method and data interface and equipment of high speed Ethernet to optical transmission network

本发明提供了一种高速以太网到光传输网的数据传输方法及数据接口和设备。其基本思想是通过流量控制、速率匹配、映射封装来实现高速以太网业务到光传输网络的无缝传输；基于现有网络结构，可以采用媒体接入控制子层、物理编码子层、光传输网接入子层来分别完成。采用本发明方案只需经过一次数据的映射封装，即可在物理层直接实现高速以太网业务透明地到光传输网络传输，由于映射时速率匹配，因此能够以完全符合标准的形式进行，保证了业务传输的效率和质量。

Universal multichannel data synchronization method and device

本发明公开了一种通用的多通道数据同步方法和装置，涉及光通信技术领域，本发明在接收端旁设置控制电路，通过控制电路将输入数据所有帧头可能出现的位置与帧头特征码型比对，得到码型比对标识符，根据码型比对标识符与该通道数据对应的通道掩码，进行逻辑运算，得到帧头位置指示并更新帧头滑动规则；在接收端根据更新的帧头滑动规则对整合后的数据进行数据选择。通过控制电路和接收端分开并行处理，从而减少了时延。同时，通过时分复用同一套数据通道和控制电路，实现多通道串行处理，有效节省芯片资源。

Link group configuration method and device

本申请实施例提供一种链路组配置方法和装置。链路组配置方法包括：第一网络设备获取第一网络设备的M个物理端口各自所属的候选组，第一网络设备从第二网络设备获取第二网络设备的M个物理端口各自所属的候选组，根据第一网络设备的M个物理端口各自所属的候选组以及第二网络设备的M个物理端口各自所属的候选组，从M条物理链路中选择N条物理链路作为第一网络设备与第二网络设备之间的链路组。本申请实施例通过根据各物理端口接收信息的快慢为各物理端口分配候选组，根据物理端口各自所属的候选组配置链路组，提高了链路组配置速度，保证了链路组的可靠运行。

Method, device and system for processing Ethernet data in optical network

本申请实施例涉及光通信领域，尤其涉及光传送网络中的数据处理技术。在一种数据处理的方法中，一个光网络设备从一个路径的数据帧中提取出以太数据，并将所述以太数据转换为另一格式后，放置到另一路径的数据帧中，其中，所述光网络设备为所述路径的目的设备且为所述另一路径的源设备；此外，所述光网络设备还从所述路径的数据帧中提出开销信息，并将所述开销信息插入所述另一路径的数据帧中。本申请提供的数据处理方法可以实现不同类型的以太接口的互通。此外，通过跨路径的开销处理，该方法降低了路径管理复杂度。

Data processing method, communication device and communication system

For a data processing method, a communications device, and a communications system that are provided in embodiments of the present invention, in a process of transmitting a packet service, a code block stream that carries the packet service is first obtained; then, rate adaptation is performed on the obtained code block stream; and finally, the rate-adapted code block stream is mapped to an optical channel payload unit OPU signal. Compared with a conventional mapping manner in which a GFP is used, the data processing method, the communications device, and the communications system that are provided in the embodiments of the present invention feature low processing complexity and/or high bandwidth utilization.

Data transmission method, device and system

本申请公开了一种数据传输方法、装置及系统，属于通信技术领域。该数据传输方法包括：第一节点获取m(m≥2)个第一FlexE客户，再将该m个第一FlexE客户映射至一个第二FlexE客户，之后将该第二FlexE客户的数据传输至第二节点，其中，每个第一FlexE客户的数据占用第二FlexE客户的时隙是固定的，第二节点与第一节点不同。本申请解决了相关技术中FlexE客户的粒度较细，对节点处理数据的性能要求较高的问题，通过将多个第一FlexE客户映射至一个第二FlexE客户，降低了对节点处理数据的性能要求，适用于FlexE环网的数据传输和组建的层次化网络的数据传输。

Disaggregated hybrid optical transport network, internet protocol, and Ethernet switching system

Systems and Methods for switching optical data units (ODUs) and Internet Protocol (IP) packets as Ethernet packets in an optical transport network (OTN), IP, and Ethernet switching system. The OTN, IP, and Ethernet switching system may include an Ethernet fabric having a set of M Ethernet switches each including a set of N switch ports, and a set of N input/output (IO) devices each including a set of W IO ports, a set of M Ethernet ports, an IO side packet processor (IOSP), and a fabric side packet processor (FSP). Each Ethernet switch may establish switch queues. Each IO device may establish a set of M hierarchical virtual output queues each including a set of N ingress-IOSP queues and ingress-virtual output queues, a set of W egress-IOSP queues, a set of M ingress-FSP queues, and a set of N hierarchical virtual input queues each including a set of N egress-FSP queues and egress-virtual input queues.

Message interoperability methods, POTN interworking modules and POTN systems

本发明公开了一种报文互通方法、POTN互通模块及POTN系统；上述POTN系统包括：PTN模块、OTN模块以及POTN互通模块；POTN互通模块，配置为执行以下至少一项：将通过PTN模块接入的PTN业务的以太网报文转换为ODUk报文、将通过OTN模块接入的OTN业务的ODUk报文转换为以太网报文。本申请无需现网改造即可实现PTN终端和OTN终端在POTN系统内的互通，从而提升POTN系统的集成度并降低POTN网络的部署成本。

A method for transferring data from high-speed ethernet to optical transport network as well as the data interface and device thereof

A method for transferring data from high-speed Ethernet (10GE) to Optical Transport Network (OTN) as well as the data interface and device thereof. The basic principle of the invention implements the seamless transmission from 10GE to OTN by the flow control, rate match and mapping encapsulation; based on existing network structure, it may complete respectively using MAC, PCS and OTNIS. The present invention needs only once the data mapping encapsulation, and implements directly the transparent transmission from 10GE to OTN on the physical layer, due to rate match as mapping, so it can perform in the form of conforming standard completely, ensure the efficiency and quality of the service transmission.

Securing virtual lane physical layers

A data stream with a given data rate is distributed into a plurality of virtual lanes or streams, each with a lower data rate than the data stream. Virtual lanes permit the use of lower cost electronics at the optical-electrical conversion points. Security information is generated that includes a unique initialization vector. The security information is distributed or allocated across some or all of the of the virtual data streams in a virtual lane alignment marker in a portion of the alignment marker used to maintain direct current (DC) transmission balance, but that otherwise does not provide useful information.

The methods, devices and systems of ether data processing in optical-fiber network

本申请实施例涉及光通信领域，尤其涉及光传送网络中的数据处理技术。在一种数据处理的方法中，一个光网络设备从一个路径的数据帧中提取出以太数据，并将所述以太数据转换为另一格式后，放置到另一路径的数据帧中，其中，所述光网络设备为所述路径的目的设备且为所述另一路径的源设备；此外，所述光网络设备还从所述路径的数据帧中提出开销信息，并将所述开销信息插入所述另一路径的数据帧中。本申请提供的数据处理方法可以实现不同类型的以太接口的互通。此外，通过跨路径的开销处理，该方法降低了路径管理复杂度。

A kind of method, apparatus and system of data transmission

本申请揭示了一种数据转发方法、装置和系统。在一种可能的实现方式中，数据转发装置包括收发器和处理器。其中，所述收发器接收光网络单元(ONU)设备发送的上行数据帧。所述处理器对所述上行数据帧进行处理，获得一个发往同一目的ONU设备的数据帧组。然后，所述处理器将这个数据帧组封装到光传送网络(OTN)数据帧中，利用所述收发器发送所述OTN数据帧。本申请揭示的数据传送技术，通过使用价格低廉的ONU设备，并将有带宽保证需求的业务承载到对应带宽的OTN数据帧，降低了传送网络承载有带宽保证需求的业务的设备成本，同时还可以保证业务传输质量。

Methods, related devices, and systems for obtaining target transmission routes

本出願の実施形態は、ターゲット伝送ルートを取得するための方法、関連デバイス、およびシステムを提供する。この方法は、フレキシブルイーサネットFlexEネットワーキングネットワークに適用され、第1のFlexEクライアントの伝送ルートをクエリすることを要求するために第2のノードによって送信された第1のメッセージを受信するステップと；第2のメッセージを第2のノードに送信するステップと、を含み、第2のメッセージのルート情報エントリは、各ノードのFlexEクライアントのルート情報を含む。ルートノード上のFlexEクライアントのものである入力情報と出力情報は、各ホップの伝送ルートとして記録される。FlexEネットワーク内のセグメント間伝送ルートはリアルタイムで動的に確認され得、計画および展開された伝送ルートは実際に確認されたルートと比較されて、ネットワークの実行ステータスを評価し、伝送ルートのコネクション接続性がさらに検出され得、FlexEネットワーク内の伝送ルート上の障害ノードが特定され得る。

Method and device for transmitting and receiving clock synchronization message

Provided in the present application is a method for transmitting and receiving a clock synchronization message in FlexE, comprising: a transmitting device generates indication information and a plurality of data blocks, the plurality of data blocks being obtained by encoding a first clock synchronization message, the indication information being used to indicate a first data block, and the first data block being a data block for time-stamp sampling among the plurality of data blocks; the transmitting device determines, according to the indication information, the time when the first data block reaches a medium dependent interface (MDI) of the transmitting device and generates a transmitting time stamp, the transmitting time stamp being used for recording the transmitting time of the first clock synchronization message; the transmitting device generates a second clock synchronization message carrying the transmitting time stamp; and the transmitting device transmits the second clock synchronization message. The present invention thus improves the frequency of clock synchronization, increases the bandwidth that may be used for transmitting clock synchronization messages, and also reduces the complexity of clock synchronization.

Method and apparatus for transmitting 10G bit optical fiber channel service in optical transmission network

本发明公开一种10吉比特光纤信道业务在光传输网中传输的方法和装置，属于光传送网技术领域，发送方将从用户侧接收的10GFC业务信号的速率调整为10GE信号速率，然后将速率调整后的10GFC业务信号映射为OTU2e/ODU2e信号，或者OTU1e/ODU1e信号，并发送到光传输网络上进行传输；接收方将从网络侧接收OTU2e/ODU2e，或者OTU1e/ODU1e信号解帧成速率为10GE速率的10GFC业务信号，然后将速率调整为标准的10GFC业务信号的速率，最后将速率调整后的10GFC业务信号发送到客户侧，从而有助于实现多种不同10G业务的混合汇聚接入，能更有效的利用光传输网的带宽资源。

Communication system and encoding method having low overhead

A communication system processes blocks of input data that include control words and a packet of information words are received. The packet has a start preceded by ones of the control words and an end followed by others of the control words. When the block consists exclusively of information words, a one bit block header having a first sense is appended to the block to form a frame. When the block does not consist exclusively of information words, the block is condensed to accommodate a TYPE word, the TYPE word is generated and inserted into the block and a one bit block header is appended to the block to form the frame. When the block does not consist exclusively of information words the one bit block header has a second sense, opposite to the first sense. Use of a one bit block header reduces overhead. Forward error correction is also utilized.

Fault indication method and device in flexible Ethernet

本发明涉及通信技术领域，尤其涉及一种灵活以太网中故障指示方法以及装置，所述故障指示方法包括：检测灵活以太网组中所包含的至少一个物理层实体是否发生故障；当所述至少一个物理层实体发生故障时，向发生故障的所述至少一个物理层实体所对应的灵活以太网客户周期地发送故障指示码块。相比现有技术，本发明实施例提供的技术方案可以避免占用灵活以太网的下游传输路径的全部带宽，也可以避免影响同一个灵活以太网组内非故障通道的数据传输，从而减少了受影响的灵活以太网客户的数量。

Data processing method, communication device and communication system

Provided are a data processing method, a communication device and a communication system. In the process of transmitting a packet service, a code block stream bearing a packet service is firstly acquired, rate adaptation is then performed on the acquired code block stream, and the code block stream after rate adaptation is finally mapped into an optical channel payload unit (OPU) signal. Compared with a traditional GFP mapping mode, the data processing method, the communication device and the communication system provided in the embodiments of the present invention have a low processing complexity and/or a high bandwidth availability ratio.

Method, device and system for transmitting multi-channel independent Ethernet data

本发明实施例提供了一种传输多路独立以太网数据的方法、装置和系统，该方法主要包括步骤：利用光通道净荷单元虚级联帧结构OPUk-Xv中设置的多个时隙通道和NJO(多对负调整机会字节)和PJO(正调整机会字节)，组成虚级联的多路传输通道；通过所述多路传输通道中的每路的传输通道分别传输一路的独立以太网数据。利用该技术方案，从而可以实现OTN(光传送网)透明传送多路独立以太网数据，并且解决了多路独立以太网数据穿越OTN网络延时不可控问题、频偏范围不适用于IEEE(电子和电器工程师学会)系列定义的以太网接口的问题。

Clock synchronization method and apparatus

A clock synchronization method includes receiving, by a receiving apparatus, a plurality of data blocks using a plurality of physical layer modules (PHYs), where the plurality of data blocks include a plurality of head data blocks, performing, by the receiving apparatus, timestamp sampling on the plurality of data blocks to generate a plurality of receipt timestamps, aligning, by the receiving apparatus, the plurality of receipt timestamps using a first receipt timestamp as a reference, generating, by the receiving apparatus, a clock synchronization packet based on the plurality of data blocks, and writing, by the receiving apparatus, a value of a second receipt timestamp into the clock synchronization packet, where the second receipt timestamp is a receipt timestamp that is of a second data block and that is determined based on the plurality of aligned receipt timestamps.

Method, network device, and system for transmitting wireless fronthaul interface signal

本发明实施例公开了一种传输无线前传接口信号的方法、设备和系统，该方法包括：网络设备获取无线前传接口信号，所述无线前传接口信号包括多个编码块；将所述无线前传接口信号映射到M个灵活以太网FlexE的服务层时隙中，生成FlexE信号，所述FlexE的服务层时隙根据所述无线前传接口信号的速率确定，所述M为大于或等于1的正整数；将所述FlexE信号发送到一路或多路物理通道中。实现了通过FlexE承载CPRI、eCPRI、NGFI等无线前传接口信号，根据无线前传接口信号的速率对FlexE的服务层时隙进行划分，提高了前传FlexE接口的带宽利用率以及提高了无线前传接口信号的传输效率。

Flexible ethernet data transmission method and apparatus

The invention provides a flexible Ethernet (FlexE) data transmission method and apparatus. In one embodiment, the FlexE data transmission method comprises: a first FlexE apparatus receiving, using a first client schedule, data transmitted from a second FlexE apparatus; determining, according to an incorrect data block in the data, a first time slot error; adding a time slot error notification to an overhead header to be transmitted to the second FlexE apparatus; and receiving a second client schedule transmitted by the second FlexE apparatus to receive data transmitted from the second FlexE apparatus. In the embodiment of the invention, the FlexE apparatus at a receiving end can notify the FlexE apparatus at a transmitting end of the time slot error, to enable the FlexE apparatus at the transmitting end to timely adjust a transmission time slot, reducing an impact of the time slot error in data transmission.

Efficient CPRI transmission

A method of communication between a base band unit (BBU) and a plurality of remote radio units (RRUs) via a point-to-multipoint time division multiplexing passive optical network (TDM-PON) system is provided. The method can be performed by an ONU and comprises receiving Ethernet packets from the Ethernet interface of an RRU of the plurality of RRUs, performing time-division multiplexing of the Ethernet packets to generate multiplexed packets, storing in a buffer of the ONU the multiplexed packets based on a pre-determined buffer starting time and buffer size, packaging the multiplexed packets in the buffer to fixed length transmission blocks (TBs) having pre-allocated time slots for TDM-PON upstream transmission, and transmitting the TBs to an optical line terminal (OLT) that is communicatively coupled to the BBU such that no contention of TBs occurs at the OLT.

Communication method and device

本申请提供了一种在环网中传输数据的方法，该环网包括两个相邻的FlexE交叉环，每个FlexE交叉环包括至少3个节点，该两个FlexE交叉环具有至少一个公共节点，并且，该公共节点承载跨环的端到端工作路径，该两个FlexE交叉环各自包括一个环状保护路径。由于两个FlexE交叉环中任意两个相邻的节点之间都具有保护路径，因此，若公共节点的链路出现故障，则与公共节点相邻的节点可以利用环状保护路径将数据从一个FlexE交叉环传输至另一个FlexE交叉环，从而提高了包括至少两个FlexE交叉环的环网的可靠性。

Data processing method, communication single board and device

Embodiments of the present invention provide a data processing method, a communications board and a device, which relate to the field of communications technologies and can reduce a transmission delay of a TDM service. The method includes: acquiring, by a first communications board, an optical channel data unit ODU data flow; performing, by the first communications board, slicing processing on the ODU data flow according to a fixed frame frequency, so as to obtain various slices, where each slice includes a section of continuous ODU data in the ODU data flow; separately encapsulating, by the first communications board, each slice into an Ethernet frame; and sending, by the first communications board, each Ethernet frame to a time division multiplexing TDM service switching module in an Ethernet switching chip, so that the TDM service switching module sends each Ethernet frame to a second communications board to which a destination MAC address carried in the Ethernet frame directs.

Staircase forward error correction coding

In staircase forward error correction coding, a stream of data symbols are mapped to data symbol positions in a sequence of two-dimensional symbol blocks B i , a positive integer. Each of the symbol blocks has data symbol positions and coding symbol positions. Coding symbols for the coding symbol positions in each symbol block B i in the sequence are computed. The coding symbols are computed such that, for each symbol block B i that has a preceding symbol block B i−1 and a subsequent symbol block B i+1 in the sequence, symbols at symbol positions along one dimension of the preceding symbol block B i−1 , concatenated with the data symbols and the coding symbols along the other dimension in the symbol B i , form a codeword of a FEC component code, and symbols at symbol positions along the one dimension of the symbol B i , concatenated with the data symbols and the coding symbols along the other dimension in the subsequent symbol block B i+1 , form a codeword of the FEC component code. Thus, each row in [B i−1 T B i ] and each column in [ B i B i + 1 T ] , for example, is a valid codeword.

Service data processing method and device in optical transport network

Method for processing data of flexible Ethernet and related equipment

本发明实施例公开了一种处理灵活以太网的数据的方法及相关设备，其中方法包括：获取待交换的第一客户业务流，该第一客户业务流为适用于在灵活以太网传输的业务流，例如为符合灵活以太网传输标准的业务流；将该第一客户业务流进行从源时钟域到目标时钟域的第一速率适配处理，得到与目标时钟域匹配的第二客户业务流；将第二客户业务流在该目标时钟域中进行串并转换处理，以得到并行的客户时隙流，可以获得合理的交换电路加速比，避免电路资源的浪费。

Method and apparatus for establishing flexible Ethernet groups

本申请公开了一种用于建立灵活以太网群组的方法和设备，该方法包括远端设备确定存在至少M条物理层PHY链路；远端设备通过至少M条PHY链路接收近端设备发送的至少M个时延测试请求；远端设备确定接收至少M个时延测试请求的至少M个接收时刻；远端设备根据至少M个接收时刻，从至少M条PHY链路中确定用于建立灵活以太网群组的M条PHY链路，M条PHY链路中任意两条PHY链路的时延差满足预设时延条件。本申请的方法根据任意两条PHY链路上时延测试请求的接收时刻，精确的确定任意两条PHY链路之间的时延差，能够适用于上下行的传输路径不对称的情况，可以用于建立灵活以太网群组，保证灵活以太网群组出现业务故障的概率降低。

Data transmission method and apparatus

This application provides a data transmission method and apparatus. The method includes: processing, by a network device, a to-be-sent optical data unit ODU to obtain another ODU, where a bit rate of the another ODU is lower than a bit rate of the ODU; and sending, by the network device, the another ODU. In embodiments of this application, the ODU is processed to obtain the another ODU with a lower bit rate, and this helps reduce a rate increase when service data is transmitted in an OTN, so as to reduce an OTN interface rate and OTN costs.

Communication method and apparatus

This application provides a method for transmitting data on a ring network. The ring network includes two adjacent FlexE cross-connection rings, each FlexE cross-connection ring includes at least three nodes, the two FlexE cross-connection rings have at least one common node, the common node carries a cross-ring end-to-end working path, and each of the two FlexE cross-connection rings includes one ring-shaped protection path. Because there is a protection path between any two adjacent nodes in the two FlexE cross-connection rings, if a link fault occurs in the common node, a node adjacent to the common node may transmit data from one FlexE cross-connection ring to another FlexE cross-connection ring by using the ring-shaped protection path. Therefore, reliability of the ring network including the at least two FlexE cross-connection rings is improved.

Data transmission method, sending device and receiving device

本申请实施例公开了一种数据传输方法、发送装置及接收装置，用于提高网络传输整体的稳定性。本申请实施例方法包括：发送装置获取码块集合，所述发送装置判断所述码块集合中是否包括空闲码块，若是，则所述发送装置生成专用码块，所述专用码块包括指示域和数据域，所述数据域用于承载业务，所述指示域承载指示信息，所述指示信息用于指示所述专用码块及所述数据域中承载有所述业务，所述发送装置用所述专用码块替换所述空闲码块得到目标码块集合，所述发送装置发送所述目标码块集合。

Obtain method, relevant device and the system in object transmission path

本发明实施例提供了一种获得目标传输路径的方法、相关设备及系统。其中，该方法应用于灵活以太网FlexE组网网络中，包括：接收第二节点发送的请求查询第一FlexE客户传输路径的第一消息；向所述第二节点发送第二消息；其中，第二消息中的路径信息表项包括FlexE客户在各节点上的路径信息。通过记录FlexE客户在路径节点上的入口信息及出口信息，作为每一跳的传输路径，可以实时动态发现FlexE网络段到段的传输路径、比对规划部署的传输路径与实际发现的路径以评估网络的运行情况，还可以检测传输路径上的连接连通性和定位FlexE网络内传输路径上的故障节点。

Systems and methods for statistical multiplexing with otn and dwdm

A method includes profiling user-network interface (UNI) ports including Optical channel Data Unit flex (ODUflex) in a network; and adapting, using a max-flow routing criterion, network-network interface (NNI) ports comprising ODUflex based on the profiling. A network includes a plurality of network elements; a plurality of links interconnecting the plurality of network elements, wherein the plurality of links includes Layer 0 Dense Wave Division Multiplexing (DWDM) bandwidth and Layer 1 Optical Transport Network (OTN) bandwidth; and a control plane operating between the plurality of network elements; wherein the Layer 0 DWDM bandwidth and the Layer 1 OTN bandwidth is statistically multiplexed using the control plane and manager based on monitoring bandwidth usage thereon over time.

Frame transfer apparatus and frame transfer method

Transmission rate adjusting method and network equipment

本发明实施例公开了一种传输速率的调整方法及网络设备，用于支持快速调整业务在网络节点的上下游接口的传输通道的传输速率，使业务能适应其在节点上下游传输通道的传输速率差异，同时减少网络节点的数据缓存、网络节点处理延迟和业务传输延迟。本发明实施例方法包括：网络设备获取目标数据流，目标数据流包含第一数据报文，第一数据报文包括至少两个非空闲单元；网络设备根据业务在网络设备的上下游接口上的传输通道带宽的差异，在任意两个非空闲单元之间插入或删除填充单元，填充单元用于适配网络设备的上游传输通道的带宽和下游传输通道的带宽的差值。

Method and device for sending and receiving clock synchronization message

本申请提供了一种在FlexE中发送和接收时钟同步报文的方法，包括：发送装置生成指示信息和多个数据块，该多个数据块为对第一时钟同步报文进行编码后得到的，指示信息用于指示第一数据块，第一数据块为该多个数据块中用于进行时间戳采样的数据块；发送装置根据指示信息确定第一数据块到达该发送装置的介质相关接口MDI的时刻并生成发送时间戳，发送时间戳用于记录第一时钟同步报文的发送时刻；发送装置生成携带该发送时间戳的第二时钟同步报文；发送装置发送第二时钟同步报文。从而提高了时钟同步的频率，增大了传输时钟同步报文能够使用的带宽，并且还减小了时钟同步的复杂度。

Multiframe sending and receiving method, device, communication equipment and communication network system

本发明提供了一种复帧发送、接收方法、装置、通讯设备及通讯网络系统，其中，该方法包括：根据物理层的时隙数量，确定用于标识复帧数的复帧标识，其中，所述复帧数为组成一个复帧的帧的个数；将复帧发送给接收端，其中，所述复帧携带有所述复帧标识。通过本发明，解决了相关技术中FLEXE协议的复帧结构存在对不同接口带宽兼容性差的问题，达到了提高FLEXE协议的复帧结构对不同接口带宽兼容性的效果。

Method and apparatus for adjusting transmission rate

본 발명의 실시예는, 서비스가 노드의 업스트림 및 다운스트림 전송 채널에서의 서비스의 전송 레이트들 사이의 차이를 구성하고, 네트워크 노드 데이터 버퍼, 네트워크 노드 처리 지연 및 서비스 전송 지연이 감소될 수 있도록, 네트워크 노드의 업스트림 및 다운스트림 인터페이스 상의 전송 채널에서의 서비스의 전송 레이트에 대한 신속한 조정을 지원하기 위해, 전송 레이트 조정 방법 및 네트워크 장치를 개시한다. 본 발명의 실시예에서의 방법은, 네트워크 장치에 의해, 타깃 데이터 스트림을 획득하는 단계 ― 타깃 데이터 스트림은 제1 데이터 패킷을 포함하고, 제1 데이터 패킷은 적어도 2개의 비 유휴 유닛을 포함함 ―; 및 네트워크 장치에 의해, 네트워크 장치의 업스트림 및 다운스트림 인터페이스 상의 서비스의 전송 채널의 대역폭들 사이의 차이에 기초하여 임의의 2개의 비 유휴 유닛들 사이에 패딩 유닛을 삽입하거나 또는 삭제하는 단계 ― 패딩 유닛은 네트워크 장치의 업스트림 전송 채널의 대역폭과 네트워크 장치의 다운스트림 전송 채널의 대역폭 사이의 차이를 구성하는 데 사용됨 ―를 포함한다.

Method and device for implementing mapping and de-mapping of client signal

Method, apparatus and system for processing ethernet data in optical network

Method and apparatus for mapping Ethernet encoding block to transmission of optical network

本发明公开了一种将以太网编码块映射到光传输网络传输的方法及装置，其按照设定的映射方式，将4路10G以太网编码块，均匀映射到GFP帧的有效载荷中；或者，将每路10G以太网编码块块间插到OTN帧每行的有效载荷中。可见，本发明实施例给出了将编码速率小于OPU3的最小载荷带宽的4路10G以太网编码块映射到光传输网络中上传输的具体解决方案，达到透明传送的目的，并且不需要更改已经成熟的OTN体制。

Method and apparatus for processing ethernet data in optical network, and system

Embodiments of this application relate to the field of optical communications, and in particular, to a technology of processing data in an optical transport network. In a method for processing data, an optical network device extracts Ethernet data from a data frame of one path, converts the Ethernet data into another format, and places the Ethernet data converted into the another format into a data frame of another path. The optical network device is a destination device of the path and a source device of the another path. In addition, the optical network device further extracts overhead information from the data frame of the path, and inserts the overhead information into the data frame of the another path. The method for processing data provided in this application can implement interworking between different types of Ethernet interfaces. In addition, by using cross-path overhead processing, the method reduces path management complexity.

Data transmission method, equipment and system

本申请揭示了一种数据转发方法、装置和系统。在一种可能的实现方式中，数据转发装置包括收发器和处理器。其中，所述收发器接收光网络单元(ONU)设备发送的上行数据帧。所述处理器对所述上行数据帧进行处理，获得一个发往同一目的ONU设备的数据帧组。然后，所述处理器将这个数据帧组封装到光传送网络(OTN)数据帧中，利用所述收发器发送所述OTN数据帧。本申请揭示的数据传送技术，通过使用价格低廉的ONU设备，并将有带宽保证需求的业务承载到对应带宽的OTN数据帧，降低了传送网络承载有带宽保证需求的业务的设备成本，同时还可以保证业务传输质量。

Method and device for transparently transmitting service frequencies

본 출원은 서비스 주파수를 투명하게 전송하기 위한 방법 및 디바이스를 제공하며, 이 방법은: 제 1 디바이스에 의해, 제 1 서비스 주파수 정보(Xn)를 결정하는 단계 - 상기 제 1 서비스 주파수 정보(Xn)는 상기 제 1 디바이스에 의해 제 1 통계 지속 기간 내에 전송되는 n-비트 제 1 서비스 데이터의 양을 나타내는 데 사용되며, 상기 제 1 디바이스의 전송 주파수는 상기 제 1 통계 지속 기간에 대한 기준으로서 사용됨 -; 및 상기 제 1 디바이스에 의해, 상기 제 1 서비스 주파수 정보(Xn)를 제 1 S/T 비트 코드 블록 내에 캡슐화하고, 상기 제 1 S/T 비트 코드 블록을 상기 제 1 서비스 데이터의 데이터 스트림 내에 삽입하고, 그리고 상기 제 1 서비스 데이터의 데이터 스트림을 제 2 디바이스에 전송하는 단계를 포함한다. 본 출원의 방법은 FlexE의 링크에 동시에 액세스할 때, 기존의 FlexE 표준을 변경하지 않고, 서비스 주파수를 투명하게 전송하기 위한 요건으로 복수의 서비스 데이터 조각을 지원할 수 있다. FlexE에서 레이트 매칭을 수행하기 위해 서비스 주파수를 투명하게 전송하기 위한 요건과 함께 스터프 코드 블록이 각 서비스의 데이터 스트림 내에 삽입되기 때문에, 상기 서비스에 할당된 대역폭을 방법에 따라 적절히 사용하는 것은 다른 서비스에 영향을 미치지 않는다. The present application provides a method and a device for transparently transmitting a service frequency, the method comprising: determining, by a first device, first service frequency information (Xn) - the first service frequency information (Xn) is used to indicate the amount of n-bit first service data transmitted by the first device within a first statistic duration, and the transmission frequency of the first device is used as a reference for the first statistic duration; ; and encapsulating, by the first device, the first service frequency information (Xn) in a first S/T bit code block, and inserting the first S/T bit code block into a data stream of the first service data. and transmitting the data stream of the first service data to a second device. The method of the present application can support a plurality of service data pieces as a requirement for transparently transmitting a service frequency without changing an existing FlexE standard when accessing a link of FlexE at the same time. In order to perform rate matching in FlexE, since a stuff code block is inserted into the data stream of each service along with the requirement for transparently transmitting the service frequency, the proper use of the bandwidth allocated to the service according to the method is different for other ...

Method and device for adjusting the data transmission in the transport network

Flexible ethernet data transmission method and apparatus

Ethernet link method for building up and controller

本发明提出一种以太网链路建立方法和控制器，涉及软件定义的光网络领域。其中，本发明的以太网链路生成方法包括：控制器获取请求在分组增强型光网络P‑OTN网络中建立以太网链路的以太网链路建立请求；控制器根据以太网链路建立请求建立从源节点到目的节点的光通道数据单元ODU连接；控制器以ODU连接作为传输通道在源节点与目的节点间建立传输分组数据的以太网链路。通过这样的方法，在P‑OTN网络中，能够先建立从源节点到目的节点的ODU连接，再生成以该ODU连接作为传输通道的源节点与目的节点之间的以太网链路，在控制器中无需实例化多个ODU节点，简化了拓扑，便于管理，也提高了以太网链路建立的效率。

Flexible ethernet overhead multiframe receiving method, apparatus, device, and medium

A kind of signal sending, receiving method, apparatus and system

本发明的实施例提供一种信号发送、接收方法、装置及系统，涉及光通信技术领域，能够解决不同速率的光通道单元信号的高成本传输问题。该方法包括：将待传输的n倍基准速率的光通道单元信号映射到X路第一光通道物理链路信号，第一光通道物理链路信号的速率为m i 倍基准速率，n≥2，X≥2，m i ≥1， 为X路第一光通道物理链路信号中的每一路第一光通道物理链路信号添加链路序列指示开销，以生成X路第二光通道物理链路信号；将X路第二光通道物理链路信号一一对应地通过X个预设的光模块进行调制并发送。

Method and device for binding flexible Ethernet equipment port, and method and device for establishing path

本发明公开了一种灵活以太网设备端口绑定的方法及装置，所述方法包括：获取公共平台上发布的灵活以太网设备端口对应的板卡的参数信息；基于所述板卡的参数信息，确定所述板卡支持的端口的绑定策略；基于所述绑定策略，将所述至少两个端口进行绑定。本发明还公开了一种灵活以太网路径建立的方法及装置，所述方法包括：获取公共平台上发布的发送端和接收端的灵活以太网设备内部分别支持的灵活以太网客户信号的信号类型信息；基于所述信号类型信息，判断所述发送端和接收端的灵活以太网设备内部分别支持的灵活以太网客户信号的类型是否相同；确定所述灵活以太网客户信号的类型相同时，建立所述发送端和接收端之间的通信路径。