A method and system for realizing mixed automatic request re-transfer processing and channel decoding

A hybrid automatic and channel decoding technology, applied in transmission systems, digital transmission systems, unequal/adaptive error prevention, etc., can solve problems such as large storage space

Active Publication Date: 2008-08-06
DATANG MOBILE COMM EQUIP CO LTD +1
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Problems solved by technology

[0019] The present invention provides a method and system for realizing hybrid automatic retransmission processing and channel decoding, which is used to solve the problem in the prior art that large storage space is required to store a large amount of data after channel coding and before channel decoding

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  • A method and system for realizing mixed automatic request re-transfer processing and channel decoding
  • A method and system for realizing mixed automatic request re-transfer processing and channel decoding
  • A method and system for realizing mixed automatic request re-transfer processing and channel decoding

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Embodiment Construction

[0071] see Figure 3A , the present invention provides a method for realizing hybrid automatic request retransmission processing, and its specific implementation process is as follows:

[0072] Step 301: perform code block segmentation on the transport block;

[0073] At the transmitting end, after the transmission block is segmented into code blocks, the transmission block includes more than two code blocks;

[0074] Step 302: each time a part of the transmission block is channel-coded and the encoded block is stored;

[0075] Step 303: Take out the stored coding block, perform bit separation on the coding block, and generate a rate matching parameter for the coding block after the bit separation, and use the rate matching parameter to perform the first rate matching on the coding block;

[0076] Step 304: When the first rate matching is completed for the transport block, code block concatenation is performed on the encoding blocks that have completed the first rate matchin...

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Abstract

The invention discloses a method for realizing hybrid automatic repeat request and a method for realizing channel decoding. The method is as follows: a coding block after channel decoding of a transmission block part is stored each time on a sending end; the stored coding block is taken out and subject to bit separation and first velocity matching; when first velocity matching of a transmission block is completed, code block cascade connection of the coding block after completion of first velocity matching is performed; first velocity de-matching and bit de-separation are performed on a partial coding block of an HARQ process data each time on a receiving end, and the coding block after bit de-separation is stored; the stored coding block is taken out and subject to channel decoding. The invention also discloses a system for realizing HARQ processing and a system for realizing channel decoding. By adoption of the system for realizing HARQ processing and the system for realizing channel decoding, data storage space required between coding / decoding and HARQ processing / de-HARQ processing can be saved.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, and in particular, to a method and system for realizing hybrid automatic request retransmission processing and channel decoding. Background technique [0002] The High Speed ​​Downlink Package Access (HSDPA) technology was proposed in the fifth edition of the 3rd Generation Partnership Project (3GPP) to improve downlink service data throughput. It is an important technology for the transmission rate of business data and business data, which is the main breakthrough point of the fifth version (R5) compared to the ninety-ninth version (R99) and the fourth version (R4). Using the HSDPA technology, performances such as high throughput, small delay and high peak data transmission rate of downlink service data can be achieved. Since HSDPA is backward compatible with R99 and R4, operators can smoothly upgrade according to the needs of network construction and development without ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03M13/35H04L1/00
Inventor 耿贵杰王乃博
Owner DATANG MOBILE COMM EQUIP CO LTD
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