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A kind of data transmission method and device of rlc layer

A data transmission method and technology of a data transmission device are applied in the field of communication and can solve problems such as abnormal data reception at the RLC layer.

Inactive Publication Date: 2016-06-15
이노피데이인코포레이티드 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The present invention provides a data transmission method and device of the RLC layer to solve the problem of abnormal reception of RLC layer data caused by the sudden change of the SN of the downlink RLC PDU

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  • A kind of data transmission method and device of rlc layer
  • A kind of data transmission method and device of rlc layer
  • A kind of data transmission method and device of rlc layer

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Embodiment Construction

[0030] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] In the prior art, after the RLC layer receives a RLC PDU from the bottom layer, it will check whether it satisfies the condition of putting it into the receiving buffer according to the LTETS36.322 protocol; if it does not meet the condition, it will be directly discarded; Put it into the receiving buffer and reorder according to SN.

[0032] However, the SN of the RLC PDU is very likely to be mutated before the RLC layer of the terminal receives it, causing problems when receiving the RLC PDU subsequently.

[0033] Therefore, the embodiment of the present invention provides a data detection method of the RLC layer, which can check whether the SN of the RLC PDU has a mutation after the RLC PDU satisfies the condition of bei...

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Abstract

An embodiment of the invention provides a radio link control (RLC) layer data transmission method and device and aims at solving the problem of abnormal RLC layer data receiving caused by SN mutation of RLC protocol data units (PDUs). The RLC layer data transmission method includes: after the received RLC PDUs meet the condition of being placed into a receiving cache, the SN of the RLC PDUs is detected whether to be larger than a first class reference value; if the SN of the RLC PDUs is smaller than or equal to the first class reference value, the RLC PDUs are placed into the receiving cache; if the SN of the RLC PDUs is larger than the first class reference value, the RLC PDUs are stored in a suspicious cache serving as suspicious RLC PDUs, and the SN of the suspicious RLC PDUs is detected whether to be larger than a second class reference value; if the SN of the suspicious RLC PDUs is smaller than or equal to the second class reference value, the suspicious RLC PDUs are placed into the receiving cache; and the RLC PDUs in the receiving cache are recombined and transmitted.

Description

technical field [0001] The invention relates to communication technology, in particular to a data transmission method and device of an RLC layer. Background technique [0002] In the third generation mobile communication technology (3 rd Generation, 3G) in the long-term evolution (LongTimeEvolution, LTE) system, when the mobile communication terminal receives the downlink data packet, the radio link control (RadioLinkControl, RLC) layer of the terminal will receive an RLC protocol data unit (RLCProtocolDataUnit, RLC PDU). [0003] The LTETS36.322 protocol stipulates that each RLC PDU has a sequence number (SequenceNumber, SN), so after receiving the RLC PDU, it will check whether it meets the conditions for putting it into the receiving buffer according to the LTETS36.322 protocol; if it does not meet the conditions , it is directly discarded, and if the condition is met, it is put into the receiving buffer, and then, the RLC PDUs in the receiving buffer are reordered acco...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00
Inventor 蒋诗梅周光明丁丽洁钟展辉
Owner 이노피데이인코포레이티드