Adaptive weighted HARQ (hybrid automatic repeat request) combination method and device

An adaptive weighting and hybrid automatic technology, applied in the field of communication, can solve the problems of the maximum number of bits is not constant, the data success rate is small, and the code rate of the initial transmission data and the retransmission data are different.
CN102594535AInactive Publication Date: 2012-07-18HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUAWEI TECH CO LTD
Publication Date
2012-07-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides an adaptive weighted HARQ (hybrid automatic repeat request) combination method and an adaptive weighted HARQ combination device, relates to the field of communication techniques, and solves the problem that under the condition that the code rate of requested data is higher than the code rate of to-be-decoded data subjected to decoding failure, a receiving end after receiving the requested data is low in success rate of data decoding. The method specially comprises the following steps of: receiving requested data; multiplying the requested data by a combined weight value so as to obtain a product, adding the product and to-be-decoded data subjected to decoding failure together so as to obtain data subjected to adding, and updating the to-be-decoded data into the data subjected to adding, so that the combined weight value is greater than the ratio of the code rate of the requested data to the code rate of the to-be-decoded data subjected to decoding failure; and carrying out decoding on the updated to-be-decoded data. The method and device disclosed by the invention can be applied to adaptive weighted HARQ combination.
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Description

technical field

[0001] The invention relates to the field of communication technology, in particular to a method and device for adaptive weighted hybrid automatic retransmission request combination. Background technique

[0002] In a communication system, after the receiving end receives the data sent by the sending end, it first decodes the received data. However, in some cases, the data transmitted to the receiving end is damaged due to the interference of the channel, so that the receiving end fails to decode the data.

[0003] In the prior art, in the LTE (Long Term Evolution, long-term evolution) system, through AMC (Adaptive Modulation and Coding, adaptive modulation and coding) technology and HARQ (Hybrid-Automatic Repeat-reQuest, hybrid automatic retransmission) technology To increase the decoding success rate of the receiving end.

[0004] By adopting AMC technology, before each sending end sends data, the sending end adjusts the modulation mode of the data and th...

Claims

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