WO2007104234A1 - Dispositif et procédé permettant l'adaptation d'une trame micro-ondes - Google Patents

Dispositif et procédé permettant l'adaptation d'une trame micro-ondes Download PDF

Info

Publication number
WO2007104234A1
WO2007104234A1 PCT/CN2007/000705 CN2007000705W WO2007104234A1 WO 2007104234 A1 WO2007104234 A1 WO 2007104234A1 CN 2007000705 W CN2007000705 W CN 2007000705W WO 2007104234 A1 WO2007104234 A1 WO 2007104234A1
Authority
WO
WIPO (PCT)
Prior art keywords
frame
microwave
positioning information
microwave frame
stm
Prior art date
Application number
PCT/CN2007/000705
Other languages
English (en)
Chinese (zh)
Inventor
Jun Feng
Feng Zhang
Tao Ding
Bin Lai
Jianbin Huang
Tianxiang Wang
Zhiyong Qiu
Yongjun Tu
Ming Zhou
Xianren Lao
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2007104234A1 publication Critical patent/WO2007104234A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H04J3/1605—Fixed allocated frame structures
    • H04J3/1611—Synchronous digital hierarchy [SDH] or SONET
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
    • H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
    • H04J2203/0028—Local loop
    • H04J2203/003—Medium of transmission, e.g. fibre, cable, radio
    • H04J2203/0035—Radio

Definitions

  • the present invention relates to microwave communication technologies, and in particular, to a microwave frame adaptation apparatus and method. Background technique
  • the Multi-Service Transport Platform (MSTP) is very mature, but it needs to be used in many places due to land privatization and terrain and other restrictions.
  • Wireless transmission usually in the case of bandwidth requirements and transmission distances of more than 1 km, usually using microwave transmission.
  • microwave transmission usually in the case of bandwidth requirements and transmission distances of more than 1 km.
  • wave Transmission has a large application.
  • the existing point-to-point (PTP) microwaves are generally divided into synchronous transmission microwaves and asynchronous transmission microwaves according to the bandwidth.
  • Microwave since they inherit from the corresponding asynchronous and synchronous systems, they also inherit their shortcomings.
  • the Plesiochronous Digital Hierarchy is a kind of multiplexing system. Because of its bit-interpolation multiplexing method, at each node, the PDH signal must be solved to the final stage to obtain the required client signal. Therefore, it is not convenient to go up and down the business. In terms of networking, you can only group simple peer-to-peer networking. PDH has poor monitoring and management capabilities.
  • Synchronous Digital Hierarchy As a transport network technology, Synchronous Digital Hierarchy (SDH) has better monitoring capability, management capability, network survivability, and higher transmission capacity than PDH. It can arbitrarily up and down business signals. It is a very Reliable transport network technology.
  • SDH is mainly a technical system for transmitting voice services, with too many overhead bytes, and in the field of 4 chop transmission, it is required to transmit more services within a limited bandwidth. Simultaneous use of limited bands Widely transmit microwave frame overhead as much as possible, which facilitates flexible network management.
  • the embodiments of the present invention provide a microwave frame adaptation apparatus and method, which solves the problem that the upper and lower services cannot be flexibly transmitted using less overhead bytes in a limited bandwidth in the prior art.
  • the present invention provides a microwave frame adaptation apparatus, and the apparatus includes:
  • a microwave frame acquiring unit configured to acquire a microwave frame that can carry low-order services without high-order pointers
  • ⁇ a wave frame adaptation unit, configured to adapt the microwave frame into an STM-N/STS-N frame structure ; as well as
  • the frame positioning information position reproducing unit is connected to the microwave frame adaptation unit for reproducing the position of the frame positioning information by a flag bit having a fixed positional relationship with the frame positioning information.
  • the embodiment of the present invention further provides a method for adapting a microwave frame, where the method includes the following steps:
  • the position of the frame positioning information is reproduced in the frame structure by a flag bit having a fixed positional relationship with the frame positioning information.
  • the TU microwave frame carrying the microwave service can be flexibly moved up and down in the SDH7SO ET network element.
  • PDH/SDH/SONET microwaves can be used A hardware platform that simultaneously implements access to multiple service types on the same platform, which satisfies
  • PDH microwave capacity has lower cost, and at the same time, it can ensure that when upgrading to SDH microwave, there is no need to replace equipment to protect user investment.
  • FIG. 1 is a block diagram showing a microwave frame adaptation apparatus according to an embodiment of the present invention
  • FIG. 2 is a block diagram showing a microwave frame adaptation unit according to an embodiment of the present invention.
  • FIG. 3 is a block diagram showing a frame positioning information position reproducing apparatus according to an embodiment of the present invention
  • FIG. 4 is a flowchart showing a microwave frame fitting method according to an embodiment of the present invention
  • FIG. 5 is a diagram showing a microwave frame structure capable of carrying low-order services without high-order pointers according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram showing an STM-1 frame structure after a low-order traffic mapping in a transmission direction according to an embodiment of the present invention
  • FIG. 7 is a diagram showing a frame structure in which a reception direction low-order traffic rate is adapted to STM-1 and STM-1 level or higher according to an embodiment of the present invention
  • Figure 8 is a diagram showing an asynchronous first in first out type memory in accordance with one embodiment of the present invention.
  • FIG. 1 is a schematic structural diagram of a microwave frame adaptation apparatus according to an embodiment of the present invention.
  • the microwave frame adaptation apparatus includes: a microwave frame acquisition unit 102, a microwave frame adaptation unit 104, and a frame positioning information position regeneration unit 106.
  • the microwave frame acquiring unit 102 is configured to acquire a microwave frame that can carry a low-order service without a high-order pointer, and the acquiring process may extract the microwave frame from an SDH/SONET frame structure, but is not limited thereto. Alternatively, the microwave frame may be obtained from other places, such as a reconstructed microwave frame.
  • the microwave frame adaptation unit 104 is connected to the microwave frame acquisition unit 102, and is configured to adapt the microwave frame carrying the low-order service without the high-order pointer to the synchronous transmission module level N (STM-N, Synchronous Transport Module) Level-N)/Synchronous Transfer Signal Level-N (STS-N, Synchronous Transfer Signal Level -N) frame structure; and frame positioning information position regenerating unit 106, connected to the microwave frame adaptation unit 104, for passing through the frame Positioning information has a fixed position relationship of the flag bit reproduction frame positioning The location of the information. In the SDH/SONET frame structure, the position of the high-order pointer is fixed.
  • FIG. 2 is a schematic structural diagram of a microwave frame adaptation unit in a microwave frame adaptation apparatus according to an embodiment of the present invention.
  • the £-wave frame adaptation unit includes: a data extraction sub-unit 104-2, configured to extract a payload and a microwave frame position indication information (H4) in the microwave frame; a first-in first-out memory 104-4, connected to the data extraction subunit 104-2, configured to store the payload of the microwave frame and the microwave frame position indication information (H4); the flag generation subunit 104-6, and the first in first out memory 104-4 Connected, when storing the payload of the microwave frame and the microwave frame position indication information to the first-in first-out type memory, marking a position having a fixed positional relationship with the frame positioning information, generating a flag bit; and a microwave frame adaptation unit 104-8, connected to the flag bit generating sub-unit 104-6, for adapting the information stored in the first-in first-out type memory to the STM-N/STS
  • the frame positioning information position reproducing unit 106 includes: a flag bit extracting sub-unit 106-2 and a frame positioning information position reproducing sub-unit 106-4.
  • the flag bit extraction sub-unit 106-2 is configured to extract a flag bit stored in the first-in first-out type memory; and the frame positioning information position regeneration sub-unit 106-4 is connected to the flag bit extraction sub-unit 106-2. And for generating a position of the frame positioning information according to the extracted flag bit and a fixed positional relationship between the flag bit and the frame positioning information.
  • the frame positioning information position regenerating subunit repositions the position of the frame positioning information according to the extracted flag bit and the fixed positional relationship between the flag bit and the frame positioning information.
  • the frame positioning information includes a channel trace byte (Jl).
  • the position having a fixed positional relationship with the frame positioning information includes a branch unit pointer (V1).
  • the microwave frame position indication information includes a tributary unit position indication byte (H4).
  • the depth of the first-in first-out memory is an integer multiple of 3, and is adapted to In the frame structure of the following levels of STM-1, the depth of the first-in first-out memory can be any value.
  • FIG. 4 it is a flowchart of a method for adapting a wave frame according to an embodiment of the present invention. As shown in Figure 4, the method includes the following steps:
  • Step S402 acquiring a microwave frame that can carry a low-order service without a high-order pointer;
  • Step S404 adapting the microwave frame carrying the low-order service without the high-order pointer to the synchronous transmission module level N / synchronous transmission signal level N (STM-N/STS-N) frame structure;
  • Step S406 in the frame structure, the position of the frame positioning information is reproduced by a flag bit having a fixed positional relationship with the frame positioning information.
  • the microwave frame carrying the low-order service without the high-order pointer may be directly extracted from the SDH/SONET frame structure; or may be a reconstructed microwave frame.
  • the specific implementation process of the step S404 includes:
  • Step S404-2 extracting the payload and the microwave frame position indication information (H4) in the microwave frame
  • Step S404-4 storing the payload of the microwave frame and the microwave frame position indication information (H4) in a first-come first In the output memory
  • Step S404-6 marking a position having a fixed positional relationship with the frame positioning information, and generating a flag bit
  • Step S404-8 the payload and the microwave frame position indication information H4 in the microwave frame and the generated flag bit are adapted into the STM-N/STS-N frame.
  • the specific implementation process of the step S406 includes:
  • Step 406-2 extracting a flag bit stored in the first-in first-out type memory
  • Step 406-4 Regenerate the position of the frame positioning information according to the flag bit and its fixed positional relationship with the frame positioning information.
  • the frame positioning information position regenerating subunit repositions the position of the frame positioning information according to the flag bit and a fixed positional relationship with the frame positioning information.
  • the frame positioning information includes a channel trace byte (Jl).
  • the position having a fixed positional relationship with the frame positioning information includes a branch unit pointer (V1).
  • the microwave frame position indication information includes a branch unit position indication byte (H4).
  • the barrel is called TU microwave frame).
  • the microwave frame structure utilizes the feature that the pointer value is fixed at a fixed position when the TU low-order service is multiplexed (for example, when the TU low-order service multiplexing is used, the pointer value is fixed at the position 522).
  • the TU the wave frame includes an overhead and a payload
  • the structure of the overhead is as shown in Table 1, including: a frame header, a data communication channel (DCC), and a wave overhead (H4).
  • DCC data communication channel
  • H4 wave overhead
  • +LinkID+ATPC+ MVRDI+JO Official circuit
  • EOW electrocircuitting Orderw
  • Link ID occupies lBit (Bit 5), combined with MVH4, transmits a total of 16 Bit of Link ID information through 16 frames.
  • the Link ID (16 Bits) accounts for 50% of the total MVOH (32 Bits) information to be transmitted, and the MVOH only occupies 8 Bits (MVH4) in each frame transmission.
  • 4Bbits the Link ID information that needs to be occupied by 16Bits is transmitted by this method, which is equivalent to using only 4Bits to complete the transmission, which greatly improves the efficiency, effectively saves the bandwidth resources, and can use the richer bandwidth to improve the coding correction. Wrong ability, improve receiving sensitivity and other indicators.
  • this TU microwave frame rate needs to be adapted to SDH/SONET transmission and demapping.
  • the demapping process it is relatively simple because it is a synchronous clock domain.
  • the rate adaptation process since it is a different clock domain, the position of J1 after mapping is floating in SDH7SO ET, but since the microwave frame belongs to an unconventional structure without pointer value, the asynchronous FIFO processing cannot use the original SDH.
  • a method of asynchronous FIFO processing in /SONET systems Similarly, in order to implement arbitrary uplink and downlink services and ADM functions, the asynchronous rate adaptation method of PDH cannot be adopted.
  • the traditional SDH/SONET rate adaptation method is as follows: The STM-N/STS-N frame structure signal on the line side is rate-adapted through the asynchronous FIFO, and the signal is re-regenerated to form a new STM-N/STS-N frame structure signal. After the transfer locally. The service payload is unchanged, and the clock is switched from the line clock to the local clock. The segment overhead is terminated, that is, the segment overhead needs to be processed here.
  • the traditional SDH/SONET rate adaptation method is based on the specific SDH/SONET frame structure.
  • the position of the J1 pointed to by the pointer changes regularly, or always changes three positions at a time (J1 is always relative)
  • J1 is always relative
  • the current rate adaptation method locates the locally transmitted frame header signal that J1 always uses as a reference for direct positioning. It is effective for the traditional SDH/SONET rate adaptation, but this method can not handle the situation that J1 is floating irregularly with respect to the local frame header signal distance. Therefore, it is impossible to implement the microwave frame that carries the low-order service without the pointer. Distributed to SDH transmission.
  • the traditional PDH self-asynchronous rate adaptation and the traditional PDH asynchronous rate adaptation to the SDH method can adapt the microwave frame rate carrying low-order services without pointers to SDH transmission, but this loses SDH/SONET transmission. Advantages, can not achieve arbitrary up and down Business and ADM capabilities.
  • the embodiment of the present invention adapts the new TU microwave frame rate to the SDH/SONET transmission, and requires flexible uplink and downlink services. That is, the embodiment of the present invention proposes a method for asynchronously adapting a microwave frame without a pointer to an STM-N/STS-N frame structure, and implementing PDH/SDH/SONET chopping can adopt a unified hardware platform, and at the same time Multiple types of service access on the same platform, as well as low cost when meeting PDH microwave capacity, while ensuring that when upgrading to SDH/SONET microwaves, there is no need to replace equipment to protect user investment.
  • the TU microwave frame structure defined by the PDH/SDH/SONET integrated digital microwave device is shown in Figure 5:
  • the frame structure adopts a left-to-right, top-to-bottom transmission method.
  • the first m bytes are overhead bytes.
  • the payload area is Nx4 columns.
  • the payload area is Nx3 columns, the first m bytes are frame headers and others. Overhead, it can realize end-to-end processing of microwave services.
  • the size of the TU12 and VT2 microwave frames is m+nx4x9 bytes, and the size of the TU11 and VT15 microwave frames is m+nx3x9 bytes.
  • the payload area is Nx86 columns
  • the microwave frame size of TU3 is m+ Nx86x9 bytes, which can be flexibly matched according to the requirements of microwave bandwidth.
  • FIG. 6 is a schematic structural diagram of an STM-1 frame after a low-order service mapping in a sending direction according to an embodiment of the present invention.
  • SDH Due to the low-order adaptation to the high-order process in the transmission direction, the low-order traffic is aligned to the 522 position after the tributary chip adaptation process, and the VI position of the low-order service TU Relative to J1, the pointer byte is not needed when forming the TU microwave frame, and can be considered as 522 in the receiving direction (as shown in Figure 6).
  • FIG. 7 illustrates a low-order service rate adaptation to the receiving direction in the embodiment of the present invention.
  • asynchronous rate adaptation is required to the VC4/SPE payload of the local STM-N/STS-N frame structure, and then mapped to SDH/SO.
  • VC4 (VC is a virtual container) can carry 63 TU12, therefore, it can transmit up to 63 TU microwave frames composed of TU12.
  • the SPE structure can carry 21 VT2s and can transmit up to 21 TUs of VT2: wave frames.
  • the re-regenerated VC4/SPE payload loaded with the TU microwave frame payload is changed in the STM-N/STS-N frame structure, resulting in a higher order than the higher-order J1.
  • the position of the fixed-position TU microwave frame payload in the STM-N/STS-N frame structure is floating, so that the high-order pointer pointing to the high-order J1 position is changed, and the high-order J1 position pointed by the pointer is floating.
  • the microwave frames without high-order pointers are asynchronously adapted to STM-1 and STM-1, the above four characteristics must be satisfied to achieve PDH/SDH/SONET-like and arbitrary services.
  • the TU microwave frame can carry 1 ⁇ ! ! Low-order services, therefore, when n is not an integer multiple of 3, although each STM-1 is adjusted by three bytes, the actual number of bytes adjusted may be 0, 1, 2 for the actual service. , 3 bytes.
  • the J1 position read out may not be in the multiple column position of 3, resulting in an error.
  • embodiments of the present invention provide a solution capable of adaptively generating J1 and an asynchronous rate adaptation solution for transmitting a TU microwave frame to an STM-N/STS-N frame structure.
  • the following asynchronous rate adaptation method from a TU microwave frame carrying a low-order service without a high-order pointer to an STM-N/STS-N frame structure may be employed, but is not limited thereto, and the method includes the following steps:
  • the TU payload extracted from the received TU microwave frame signal is stored in the asynchronous First in first out memory (FIFO).
  • the format of the FIFO is shown in Figure 8.
  • the information of the first VI and H4 is stored synchronously. Mark the VI byte. For example, write 1 to the flag corresponding to the first VI and 0 to the other. All H4 information bits of this frame are written to the H4 value of the processed TU microwave frame.
  • the position where the VI is written is guaranteed to be an integer multiple of 3.
  • the information is extracted from the FIFO and adapted into the STM-N/STS-N frame structure.
  • the extracted VIs are used to reversely locate the positions of J1 and H4, and the synchronously extracted H4 values are processed to correspond to the reproduced STM-1 frames.
  • the H4 value is inserted into the processed H4 value at the regenerated H4 position.
  • the position of the regenerative J1 can be re-corrected and positioned according to the position of the VI.
  • the frame rate is fixed, that is, the positions of VI and J1 are fixedly appearing and circulating at a certain frequency.
  • J1 is specified to be an integer multiple of 3, so when the time slot is garbled, J1 which may be located by the read VI is not an integer of 3. In this case, J1 must be re-adjusted to an integral multiple of 3.
  • J1 is not a column that is an integer multiple of 3.
  • the depth of the asynchronous FIFO is an integer multiple of 3, because when writing to the FIFO, it is necessary to ensure that the position of the first VI is written.
  • the position of the integer multiple of 3, when adapted to the frame structure of the STM-1 level or lower, the depth of the first-in first-out memory can be any value.
  • the TU microwave frame carrying the microwave service can be flexibly moved up and down in the SDH/SONET network element by using the solution in the embodiment of the present invention.
  • PDH/SDH/SONET microwaves can adopt a unified hardware platform, and achieve multiple service types on the same platform. It can meet the low cost of PDH microwave capacity, and at the same time, it can be upgraded to SDH. In the case of microwaves, there is no need to replace equipment to protect user investment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

L'invention porte sur un dispositif et un procédé qui permettent d'adapter une trame micro-ondes, lequel procédé consiste à: acquérir une trame micro-ondes pouvant transporter un service de poids faible sans pointeur de poids élevé; adapter ladite trame micro-ondes dans la structure de trames STM-N/STS-N; regénérer l'emplacement des informations de position de trame dans ladite structure de trame en fonction d'un bit indicateur possédant une position fixe par rapport aux informations de position de trame. Le dispositif de l'invention comprend: une unité d'acquisition de trame micro-ondes destinée à acquérir la trame micro-ondes transportant le service de poids faible sans le pointeur de poids élevé; une unité d'adaptation de trame micro-ondes destinée à adapter ladite trame micro-ondes dans la structure de trame STM-N/STS-N; une unité de regénération d'emplacement des informations de position de trame destinée à regénérer l'emplacement des informations de position de trame dans ladite structure de trame en fonction du bit indicateur possédant un emplacement fixe par rapport aux informations de position de trame. L'invention résoud le problème présenté par l'état antérieur de la technique, lorsque l'on ne pouvait pas utiliser un nombre moins élevé d'octets de surdébit dans une bande limitée pour transmettre avec souplesse un service d'ajout et d'abandon.
PCT/CN2007/000705 2006-03-13 2007-03-05 Dispositif et procédé permettant l'adaptation d'une trame micro-ondes WO2007104234A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200610057048.1 2006-03-13
CN200610057048A CN101039157B (zh) 2006-03-13 2006-03-13 微波帧适配装置和方法

Publications (1)

Publication Number Publication Date
WO2007104234A1 true WO2007104234A1 (fr) 2007-09-20

Family

ID=38509040

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/000705 WO2007104234A1 (fr) 2006-03-13 2007-03-05 Dispositif et procédé permettant l'adaptation d'une trame micro-ondes

Country Status (2)

Country Link
CN (1) CN101039157B (fr)
WO (1) WO2007104234A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101631387B (zh) 2009-08-24 2013-01-16 华为技术有限公司 一种微波链路的业务调度方法、装置及系统
CN102404065B (zh) * 2011-11-09 2014-02-26 武汉日电光通信工业有限公司 一种sdh指针处理方法及其电路
CN111555832B (zh) * 2020-04-22 2022-02-18 中国电子科技集团公司第五十四研究所 基于连续帧定位的1+1热备份双通道同步及保持方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04365243A (ja) * 1991-06-12 1992-12-17 Mitsubishi Electric Corp Ｆｄｄｉデータマッピング方式
CN1310905A (zh) * 1999-07-14 2001-08-29 信息产业部武汉邮电科学研究院 物理层与网络层侧设备间传输数据的数据传输装置和方法
CN1385360A (zh) * 2001-05-15 2002-12-18 华为技术有限公司 Sdh指针处理方法及电路
CN1744470A (zh) * 2004-09-02 2006-03-08 华为技术有限公司 光网络承载异步传输模式业务的方法及装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100574960B1 (ko) * 2003-11-25 2006-05-02 삼성전자주식회사 패이로드 안에서의 프레임 분할방법
JP4365243B2 (ja) * 2004-03-15 2009-11-18 Ａｓｔｉ株式会社 装飾部品配列具
KR100575989B1 (ko) * 2004-04-08 2006-05-02 삼성전자주식회사 동기화 이더넷에서의 비동기 데이터의 분할 전송 방법 및그 방법에 사용되는 데이터 구조

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04365243A (ja) * 1991-06-12 1992-12-17 Mitsubishi Electric Corp Ｆｄｄｉデータマッピング方式
CN1310905A (zh) * 1999-07-14 2001-08-29 信息产业部武汉邮电科学研究院 物理层与网络层侧设备间传输数据的数据传输装置和方法
CN1385360A (zh) * 2001-05-15 2002-12-18 华为技术有限公司 Sdh指针处理方法及电路
CN1744470A (zh) * 2004-09-02 2006-03-08 华为技术有限公司 光网络承载异步传输模式业务的方法及装置

Also Published As

Publication number Publication date
CN101039157A (zh) 2007-09-19
CN101039157B (zh) 2010-05-12

Similar Documents

Publication Publication Date Title
ES2836221T3 (es) Método de transmisión de datos, transmisor y receptor
WO2020156287A1 (fr) Procédé, dispositif, et système de transfert d'activité client, et support de stockage lisible par ordinateur
US11082199B2 (en) Data transmission method in optical network and optical network device
US7680149B2 (en) CPRI link multiplex transmission method and system
WO2019062227A1 (fr) Procédé de transmission de données, dispositif de transmission, et système de transmission
WO2008122218A1 (fr) Procédé de multiplexage et de démultiplexage de service de faible débit binaire
JP2007533179A (ja) 無線周波数伸張基地局に基づく信号伝送方法およびシステム
WO2008101377A1 (fr) Procédé et système de transport de données ethernet dans un réseau de transport optique
WO2008110119A1 (fr) Procédé de multiplexage de données ethernet indépendantes, dispositif et système associés
JP2000124868A (ja) 通信システム
CN101707553A (zh) 异步业务数据的传输方法、装置和系统
CN101043281B (zh) 波分复用网络同步数字系列光通道性能检测装置
WO2007104234A1 (fr) Dispositif et procédé permettant l'adaptation d'une trame micro-ondes
WO2023035776A1 (fr) Procédé de communication, appareil correspondant et support de stockage
US7630397B2 (en) Efficient scalable implementation of VCAT/LCAS for SDH and PDH signals
EP2432146B1 (fr) Procédé, système et dispositif pour transmettre des signaux de hiérarchie numérique synchrone par micro-ondes
CN101350691B (zh) 一种业务汇聚和adm分插复用方法及设备
CN103763057B (zh) 一种用于eop和eos转换的方法和装置
WO2023134511A1 (fr) Procédé et appareil de traitement de données de service
WO2022199600A1 (fr) Procédé et appareil de traitement de données de services, dispositifs associés et support d'enregistrement
WO2024001220A1 (fr) Procédé de découpage en tranches, procédé de traitement de service, noeud de communication et support de stockage
WO2024051586A1 (fr) Procédé de traitement de trame de données dans un réseau de transport optique, appareil et système
WO2023232097A1 (fr) Procédé et appareil de traitement de données de service
WO2024164942A1 (fr) Procédé et appareil de transmission, et dispositif de communication optique et support de stockage
WO2023165222A1 (fr) Procédé et appareil de mappage pour un contenu à mapper, et support de stockage et appareil électronique

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07720326

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 3734/KOLNP/2008

Country of ref document: IN

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07720326

Country of ref document: EP

Kind code of ref document: A1