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Method for dynamically regulating wireless link control protocol data cell size

A protocol data unit, wireless link control technology, applied in the field of communication, to achieve the effect of improving performance and code resource utilization

Active Publication Date: 2011-10-26
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] The technical problem to be solved by the present invention is to provide a dynamic adjustment method of RLC PDU size, which not only retains the advantages of flexible RLC PDU Size, but also avoids the heavy load of large-sized data packets under the situation of poor wireless environment. The problem of low transmission efficiency to improve system performance and code resource utilization

Method used

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  • Method for dynamically regulating wireless link control protocol data cell size
  • Method for dynamically regulating wireless link control protocol data cell size
  • Method for dynamically regulating wireless link control protocol data cell size

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Embodiment Construction

[0037] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0038] Such as image 3 Described, is the flow chart of method described in the present invention, comprises following steps:

[0039] 1. Enable UE 1E and 1F measurement, and configure the measurement reporting method as the event reporting method;

[0040] 2. Configure 1E threshold as -12db, configure 1F threshold as -14db;

[0041] 3. Configure MaxRlcPduSize1=80bytes, configure MaxRlcPduSize2=1500bytes;

[0042] 4. Determine the event type reported by the UE. If the UE reports a 1F event, perform step 5. If the UE reports a 1E event, perform step 6;

[0043] 5. Determine whether the current RLC PDU Size is equal to MaxRlcPduSize1, if not, modify the current RLC PDU Size to MaxRlcPduSize1; otherwise, the process ends;

[0044] 6. Determine whether the current RLC PDU Size is equal to MaxRlcPduSize2, if not, modify the current RLC PDU Size to MaxRlcPduSiz...

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Abstract

The invention relates to a dynamic adjustment method for the dimension of a data unit of a wireless link control protocol in a wideband code division multiple access system. The method comprises the following steps of: firstly configuring 1E / 1F event measuring threshold on user terminal equipment and configuring a value of the maximum dimension of the data unit of the wireless link control protocol corresponding to the 1E / 1F event; and then determining that whether the current value of the dimension of the data unit of the wireless link control protocol is modified by judging the types of theevents reported by the user terminal equipment and judging the current value of the dimension of the data unit of the wireless link control protocol. The invention adjusts the maximum value of the dimension of the data unit of the flexible wireless link control protocol according to the wireless channel quality, thus not only retaining the advantages of the dimension of the data unit of the flexible wireless link control protocol, but also avoiding the problem that the retransmission efficiency of data packet with large dimension is low under the condition of poor wireless environment and improving the system performance and the utilization ratio of code resources.

Description

technical field [0001] The present invention relates to the communication field, in particular to a dynamic adjustment of the size of a Radio Link Control (RLC) Protocol Data Unit (Protocol Data Unit, PDU) in a Wideband Code Division Multiple Access (WCDMA) system method. Background technique [0002] In the third-generation mobile communication, the radio bearer (Radio Bearer, RB) protocol control at the RLC layer is Acknowledged Mode (Acknowledged Mode, AM), through the ACK / NACK retransmission mode of the RLC layer, a reliable service is provided. transmission service. [0003] In RLC AM mode, the transmission of downlink data is controlled by the mode of the sending window. Therefore, the downlink data bandwidth is restricted by the following formula: [0004] Rate=Window size*PDU Size / RTT (1) [0005] Among them, Window size is the sending window size, PDU Size is the PDU size, and RTT is the network return delay. [0006] In order to ensure a reliable transmission, ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L1/18
Inventor 徐云翔
Owner ZTE CORP