Method for shortening high-speed downlink packet access service time-delay in affirmance mode

A technology of access service and confirmation mode, applied in the direction of code division multiplexing system, communication between multiple stations, electrical components, etc., can solve problems such as the impact of high data rate experience of users, and ensure normal and reliable transmission , Realize the effect of simplicity and shortening the service delay

Inactive Publication Date: 2007-05-23
HUAWEI TECH CO LTD
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  • Abstract
  • Description
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Problems solved by technology

[0017] The above processing process will inevitably bring service delay, which is a defect for HSDPA services that require extremely high rates, and the user's high data rate experience may be greatly affected. It is of practical significance to minimize service delay

Method used

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  • Method for shortening high-speed downlink packet access service time-delay in affirmance mode

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Embodiment Construction

[0031] From the description of the background technology, it can be seen that within a period of time after the inter-Node B cell handover occurs, the RLC layer on the network side will wait for the status report of the LIE, and after receiving the status report, it will be lost due to Macd-hs reset The data is retransmitted.

[0032] In the method for shortening the HSDPA service delay in confirmation mode, the RLC layer actively retransmits the unprocessed PDUs of the source Node B before the switch to the UE after the handover occurs, effectively shortening the actual HSDPA service delay.

[0033] The above-mentioned unprocessed PDUs include the following two types of PDUs:

[0034] The PDU has been sent to the source Node B, the source Node B has also sent the PDU to the UE, but the UE has not returned an acknowledgment message; and

[0035] The PDU has been sent to the source Node B, but the source Node B has not sent the PDU to the UE before the handover.

[0036] For ...

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Abstract

The invention relates to a method for shortening the high-speed descending group access service time delay of confirmation mode, wherein when the access service is switched from source node B to the target node B, the wireless chain control layer transmits the non-treated protocol data of source node B to the target node B. the invention can reduce processes that RLC sends POLL (or UE detects its lost PDU), and UE sends state report, to reduce the service time delay at AM mode and HSDPA spans node B.

Description

technical field [0001] The invention relates to a wireless link control technology in a wideband code division multiple access system, in particular to a processing method for high-speed downlink packet access services in an acknowledgment mode. Background technique [0002] The main functions of RLC (Radio Link Control, wireless link control) in WCDMA (Wide Code Division Multi Access, wideband code division multiple access) are data transmission, flow control, encryption and decryption processing, etc., and the working modes supported by it are TM (Transparent Mode, Transparent Mode), UM (Unacknowledged Mode, Unacknowledged Mode) and AM (Acknowledged Mode, Acknowledged Mode), for AM data transmission, the reliable transmission of data is guaranteed through the sliding window and retransmission mechanism. [0003] RLC retransmission is a mechanism defined in the AM mode to ensure the reliability and correctness of data transmission. [0004] After the RLC sends the PDU (Pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/38H04B7/26H04Q7/30H04L29/06H04J13/00H04W28/04H04W36/08
Inventor 尚勇沈伟峰楚志远
Owner HUAWEI TECH CO LTD
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