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Data segmentation cascade transmitting method

A data segmentation and cascading technology, which is applied in the transmission system, electrical components, communication between multiple stations, etc., to achieve the effect of low complexity and low delay

Inactive Publication Date: 2007-02-28
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to reduce the delay and simplify the protocol, these repeated functions must be simplified. That is, the existing division and cascading method is suitable for the 3G R6 system, but for the new system, it is not necessary to meet the requirements of simplifying the structure and reducing the delay. Suitable

Method used

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  • Data segmentation cascade transmitting method
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  • Data segmentation cascade transmitting method

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0098] For real-time business and non-real-time business data flow, RRC specifies the maximum protocol data unit PDU size transmitted by the media access control layer;

[0099] b2. Under the condition of being smaller than the size of the maximum protocol data unit PDU, the segmentation and concatenation entity performs segmentation and concatenation on the service data unit SDU according to the physical layer instruction at each maximum transmission time interval TTI, and adds a header to build it into an appropriate size The protocol data unit PDU is transmitted.

no. 2 example

[0101] For non-VOIP real-time services and non-real-time service data streams, the maximum value of the protocol data unit PDU transmitted by the media access control layer designated by RRC;

[0102] Under the condition of being less than the maximum value of the maximum protocol data unit PDU, the division and concatenation entity divides the service data unit SDU of the non-VOIP real-time service and non-real-time service data flow according to the physical layer instruction at each maximum transmission time interval TTI Split the cascade, add the header to build a protocol data unit PDU of appropriate size for transmission;

[0103] For the VOIP real-time service data flow, the fixed size value of the protocol data unit PDU transmitted by the medium access control layer is specified by RRC, and the segmentation and concatenation entity divides and concatenates the service data unit SDU of the VOIP real-time service data flow according to this instruction, adding The header...

no. 3 example

[0105] For non-VOIP real-time services and non-real-time service data streams, the maximum value of the protocol data unit PDU transmitted by the media access control layer designated by RRC;

[0106] Under the condition of being less than the maximum value of the protocol data unit PDU, the segmentation and concatenation entity performs segmentation and concatenation on the service data unit SDU of the real-time service and non-real-time service data flow according to the physical layer instruction at each maximum transmission time interval TTI , adding a header to construct a protocol data unit PDU of appropriate size for transmission;

[0107] For the VOIP real-time service, the split cascading entity adds a header to the service data unit SDU of each VOIP real-time service data flow as a PDU at the media access control layer for transmission.

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Abstract

The invention relates to a data dividing cascade transmission method, used in medium access control layer of wireless communication network to transmit data. Wherein, said method comprises: dividing the received service data unit SDU via service quality QoS into several QoS service data flows; cascading the SDU to relative appointed protocol data unit PDU of medium access control layer to be transmitted. The invention can apply the network system with low delay and low complexity, and combine the full-IP network to obtain the character of data QoS, to cascade and transmit divided data of MAC layer.

Description

technical field [0001] The present invention relates to a wireless interface data transmission method in mobile communication, more specifically, the present invention relates to a data division and cascading transmission method in a wireless communication evolution network. Background technique [0002] The Universal Mobile Telecommunications System (UMTS, Universal Mobile Telecommunications Systems) is a third-generation mobile telecommunications system using the WCDMA air interface. The UMTS system is also usually referred to as the WCDMA communication system. Its system structure is shown in FIG. 1 . In terms of functions, network units can be divided into a radio access network (RAN, Radio Access Network) and a core network (CN, Core Network). Among them, the wireless access network is used to handle all wireless-related functions, while the CN handles the exchange and routing of all voice calls and data connections in the UMTS system with external networks. [0003] ...

Claims

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Application Information

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IPC IPC(8): H04B7/26H04L29/06
Inventor 郑潇潇胡灏
Owner HUAWEI TECH CO LTD