Wireless link control layer error data detection method and device

Abstract

The invention discloses a wireless link control layer error data detection method. The method comprises steps that, modular processing for a present reception sequence number and a largest reception sequence number is respectively carried out by a reception end, first threshold estimation for the present reception sequence number and the largest reception sequence number is carried out, the difference of the present reception sequence number and the largest reception sequence number after modular processing is contrasted with the first threshold, if the difference after modular processing is determined to be greater than the first threshold, data corresponding to the present reception sequence number is determined to be error data. The invention further discloses a wireless link control layer error data detection device. Through the method and the device, the error data can be rapidly detected and can be timely corrected, and thereby normal data transceiving can be realized.

Description

technical field [0001] The invention relates to data detection technology, in particular to a method and device for detecting wrong data in a wireless link control layer. Background technique [0002] With the continuous improvement of data traffic under the long-term evolution (LTE, LongTermEvolution) standard, the efficiency of data construction and transmission will continue to have higher requirements. Possibility of erroneous data. [0003] At present, data transmission is mainly completed in three layers: media access control layer (MAC), packet data aggregation layer (PDCP) and radio link control layer (RLC). The window mechanism ensures the legal and orderly transmission of data. Under normal transmission, the windows and data numbers (SN) of the sending end and receiving end are synchronized. [0004] However, the transmission of erroneous data is always unavoidable. Once erroneous data is generated, the existing RLC protocol has no effective detection and process...

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Problems solved by technology

[0004] However, the transmission of erroneous data is always unavoidable. Once erroneous data is generated, the existing RLC protocol has no effective detection and processing scheme for this kind of error. It can only wait for the accumulation of errors to finally trigger the reconstruction of the data link. Therefore, The sending and receiving parties will maintain an invalid data connection for a long time until the entire data connection cannot be maintained and the connection is terminated when the conditions for abnormal release of both parties are met. Such a long-term invalid link greatly reduces the transmission efficiency and reliability of data services under the LTE standard. sex

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