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Method for realizing type 2 adaption layer of ATM VBR real time business

A technology of real-time business and implementation method, applied in the direction of data exchange through path configuration, transmission system, electrical components, etc., can solve the problems of not meeting the needs, not realizing the exchange, not realizing the AAL2 data exchange function, etc.

Inactive Publication Date: 2003-08-06
HUAWEI MACHINERY
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The above-mentioned AAL2 protocol multiplexing and demultiplexing process realized by using a dedicated chip and the SAR processing from the CPS layer to the ATM layer only complete the partial processing of this layer, and do not realize other layers including the SSSAR layer (disassembly and assembly sub-assembly related to specific services) Layer), the processing of the CPCS layer (common part convergence sublayer) in the CPS layer, and the exchange function of AAL2 data at the CPS layer is not realized, and the intermediate node connected by AAL2 cannot perform the AAL2 layer exchange for the AAL2 CPS packet. Can not meet the needs of practical applications

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  • Method for realizing type 2 adaption layer of ATM VBR real time business
  • Method for realizing type 2 adaption layer of ATM VBR real time business
  • Method for realizing type 2 adaption layer of ATM VBR real time business

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Embodiment Construction

[0025] The present invention realizes the method for AAL2, is at first set up to be used to store the sending buffer of sending data packet, and is used to deposit the receiving buffer of receiving data packet, and above-mentioned buffer setting is to be used in the prior art for CPS layer to ATM Layer SAR processing results and the method of the present invention carry out data interaction, use the above-mentioned buffer zone to complete the exchange of ATM variable bit rate real-time service adaptation layer type 2 data at the switching node connected, use the above-mentioned buffer zone to complete the adaptation layer at the terminal node connected Protocol processing and data transmission between the adaptation layer and the application layer; the connected switch node refers to the node between each sublayer of AAL2, and the connected termination node refers to the node between AAL2 and the application layer and ATM layer.

[0026] The exchange of ATM variable bit rate re...

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Abstract

This invention discloses a AAL2 protocol layer realization method setting a sending buffer used in storing sending data packets and receiving buffer in receiving data packets to use the above mentioned buffer pointer to finish the exchange of AAL2 data at connected exchange node and at connected ending node, the above mentioned buffer pointer is used to exchange finish adapter layer protocol process and data transfer of adapter and applied layers and the phonetic data packet and grouped data packet are processed differently on decapsulation sublayer SSSAR protocol layer related to special service to realize exchange between AAL2 layers and further perfect the realization scheme of AAL2 protocol layer.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to the realization method of ATM (Asynchronous Transfer Mode) variable bit rate real-time service adaptation layer type 2 in the third generation mobile communication field. Background technique [0002] In the third-generation mobile communication products, basic service processing is carried by ATM, and voice and data services are carried by AAL2 (ATM variable bit rate real-time service adaptation layer type 2) according to the protocol. Its protocol layered structure is as follows: figure 1 shown. The AAL2 protocol is divided into the convergence sublayer CS and the disassembly sublayer SAR. According to the correlation with the business, it is further divided into the CS layer SSCS and the common sublayer CPS related to the specific business. The common sublayer CPS includes the common part of the convergence sublayer CPCS and Disassemble the sublayer SAR. Among them, the S...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56
CPCH04L2012/5656H04L2012/5607H04L12/5601H04L2012/5671
Inventor 马继彬邱锦郭士奎
Owner HUAWEI MACHINERY