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Rate matching method and device thereof

A technology of rate matching and location information, applied in the field of communication, can solve the problems of large demand and low efficiency of the rate matching process, and achieve the effect of improving efficiency

Inactive Publication Date: 2014-01-01
ZTE CORP
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Problems solved by technology

[0005] Embodiments of the present invention provide a rate matching method and device, which are used to solve the problem that the bit sequence in the prior art requires a large amount of storage space in the buffer area, and the efficiency of the entire rate matching process is relatively low due to the operation of deleting dummy elements. low problem

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  • Rate matching method and device thereof

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Embodiment Construction

[0029]As mentioned in the background art, in the prior art, when the interleaved bit sequence is stored in the buffer area, the effective data and the dummy value set when interleaving the bit sequence are stored together, so this As a result, when valid data is read from the buffer area subsequently, it is necessary to perform an operation of deleting dummy elements on the read bit sequence, resulting in low efficiency of the entire rate matching process. In view of the above-mentioned problems existing in the prior art, the applicant found through research that since the purpose of introducing dummy elements in the rate matching process is only to complement the data matrix converted from the bit sequence, while other steps in the rate matching process will The dummy will not be used again, that is to say, the execution of storing dummy during the rate matching process and the subsequent deletion of the dummy when reading valid data will only increase the resource overhead of...

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Abstract

The invention discloses a rate matching method and a device thereof to solve problems exists in the prior art that bit sequence has large demand for cache region storage space and performing an operation of dummy deletion leads to low efficiency of a whole rate matching process. The rate matching method comprises the following steps: respectively determining length of each bit sequence outputted by a channel encoder, and according to the determined length and a preset data matrix column number, converting each bit sequence as a corresponding data matrix; utilizing a preset interlacing pattern, interlacing the obtained data matrixes after conversion respectively, and converting each interlaced data matrix as interlaced bit sequences; identifying effective data contained in each interlaced bit sequence, and storing identified effective data in a cache region; according to a number of effective data contained in bit sequence length supported by a preset physics channel, reading effective data transmission in an amount of the number from the cache region.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a rate matching method and device. Background technique [0002] In a wireless communication system, in order to improve the anti-interference performance of the transmission process, it is necessary to use an appropriate channel coding technology to encode the transmitted bit sequence. For example, in the Long Term Evolution (LTE, Long Term Evolution) protocol, the channel coder uses Turbo coding technology. After the channel encoder encodes the bit sequence, it is necessary to perform a rate matching operation in which the bit sequence output by the channel encoder matches the physical channel. Specifically, the rate matching can be performed by interleaving, puncturing, or repeating the bit sequence. operation to ensure that the length of the bit sequence after the rate matching operation matches the length of the bit sequence that the preset physical channel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00
Inventor 钱俊伟马杰陈石磊
Owner ZTE CORP
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