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Method and device for transmitting and receiving service data

A technology of business data and data channels, applied in the field of communication, can solve the problem that the network system cannot carry business at any rate, and achieve the effect of flexible and fast bandwidth adjustment capabilities

Inactive Publication Date: 2010-10-06
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Embodiments of the present invention provide a method and device for sending and receiving service data, which can solve the problem that the network system cannot carry services at any rate

Method used

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  • Method and device for transmitting and receiving service data
  • Method and device for transmitting and receiving service data
  • Method and device for transmitting and receiving service data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Such as figure 1 As shown, this embodiment is a method for sending business data, which may include the following steps:

[0044] S101. Receive at least one elastic data channel adapted to service data.

[0045] Service data can enter the elastic data channel after encapsulation, and can use GPON (Gigabit Passive Optical Network, Gigabit Passive Optical Network), GFP-T (Generic Framing Procedure-Transparent, general framing procedure-transparent mode), GFP-F (Generic Framing Procedure-Framing, general framing procedure-frame mapping mode), GMP (Generic Mapping Procedure, general mapping procedure), HDLC (High-Level Data Link Control, advanced data link control), or other custom methods encapsulation. It can also transmit business data directly and transparently. The business data can be STM-N (Synchronous Transmission Module level n, n-level synchronous transmission mode), OTUk (Optical Channel Transport Unit k, optical channel transmission unit k), FC (Fiber Channel,...

Embodiment 2

[0052] Such as figure 2 As shown, this embodiment is a method for receiving service data, which may include the following steps:

[0053] S201. Receive an ODUk frame, where the ODUk frame includes at least one elastic data channel.

[0054] S202. According to the scheduling control information corresponding to the at least one elastic data channel, schedule the at least one elastic data channel to a corresponding destination port.

[0055] S203. Recover the service data in the at least one elastic data channel on the destination port.

[0056] In the service data receiving method provided by the embodiment of the present invention, the receiving end can schedule the elastic data channel to the corresponding destination port according to the scheduling control information corresponding to each elastic data channel, so that the service data in the elastic data channel can be restored. The bandwidth of the elastic data channel is variable, so as to realize the bearer problem o...

Embodiment 3

[0059] Such as image 3 As shown, it is a schematic flowchart of the method for sending service data in this embodiment. This embodiment may include the following steps:

[0060] S301. Adapt the service data to a corresponding elastic data channel.

[0061] In the embodiment of the present invention, the location and bandwidth of each elastic data channel can be determined according to needs, such as service data rate requirements and / or bandwidth allocation policies. The size of each elastic data channel can be adjusted according to actual needs. For example, the sizes of the individual channels can be divided into equal or different bandwidths.

[0062] Usually there is at least one elastic data channel. Since the bandwidth of the elastic data channel may be inconsistent, service data with different rates and bandwidth requirements can be adapted to an appropriate elastic data channel according to the actual situation.

[0063] When adapting service data to each elastic...

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Abstract

The embodiment of the invention discloses a method and a device for transmitting and receiving service data, which relate to the technical field of communication and can solve the problem that a network system cannot bear the services of random rate. The method for transmitting the service data comprises the following steps of: receiving at least one elastic data channel adapted with the service data; searching a destination port address corresponding to a source port of the at least one elastic data channel; dispatching the at least one elastic data channel into ODUk frames in a corresponding destination port according to the channel indicating information corresponding to the at least one elastic data channel respectively; and after the combination of the ODUk frames is finished, forwarding the ODUk frames to a destination address through OTN lines. The embodiment of the invention is applicable to optical network communication.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a method and device for sending and receiving service data. Background technique [0002] OTN (Optical Transport Network, optical transmission network) includes the technical specifications of the electrical layer and the optical layer, and has rich OAM (Operation Administration and Maintenance, operation, management and maintenance) and powerful TCM (Tandem Connection Monitoring, serial connection detection) capabilities And out-of-band FEC (Forward Error Correction, forward error correction) capability, can realize flexible scheduling and management of large-capacity services. [0003] OTN is a technology for networking, scheduling, and transmission based on large-grained bandwidth. The OTN system has the following characteristics: (1) It can transparently transmit various types of service data; (2) Large-grained bandwidth multiplexing and cross-configuration; (3)...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J3/16H04Q11/00
CPCH04J3/1652H04L49/25
Inventor 李昆周建林曹旸胡幸蔡钧肖新华
Owner HUAWEI TECH CO LTD
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