Method and system for reducing redundant message retransmission of radio link control layer

A wireless link control and redundant message technology, applied in the field of mobile communication, can solve the problem of wasting air interface resources and achieve the effect of reducing overhead and avoiding repeated transmission
CN101753281AInactive Publication Date: 2010-06-23ZTE CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZTE CORP
Publication Date
2010-06-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method and a system for reducing redundant message retransmission of a radio link control layer, which are used for solving the technical problem that after an RLC protocol entity is rebuilt, the transmitting end transmits the redundant message repeatedly which is confirmed to be received by the receiving end to cause the resource waste. By utilizing the characteristics that the RLC protocol layer can previously predict whether the rebuilt is happened or not, the receiving end RLC protocol entities which belongs to the confirming mode of the same terminal try to senda status message to the transmitting end before the RLC protocol entity receives the rebuilding instruction, the receiving end RLC protocol entity deletes the massage which is confirmed to be received by the receiving end according to the status report before the transmitting end RLC protocol entity receives the rebuilding request, and the message is not transmitted repeatedly after the rebuilding, so the retransmission of the redundant message can be reduced, and the empty expenditure can be reduced.
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Description

technical field

[0001] The present invention relates to the field of mobile communication, in particular to an LTE (Long Term Evolution, long-term evolution) system, in the re-establishment procedure (Re-establishment procedure) of the wireless link control layer protocol entity, reducing or avoiding the retransmission of redundant messages on the sending side methods and systems. Background technique

[0002] The RLC (Radio Link Control, Radio Link Control) protocol layer is a sublayer of L2 (Layer 2) in the wireless interface protocol stack of LTE, and is located above the MAC (Media Access Control, Media Access Control) layer. RLC The protocol layer provides segmentation and retransmission services for user and control data. The functions of the RLC protocol layer include link control, encapsulation and reassembly, concatenation, user data transmission, error correction, protocol error detection and repair, etc. Each RLC protocol entity is configured by RRC (Radio Resou...

Claims

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