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Method for partitioning encoding block

A coding block and coding technology, which is applied in the field of physical resource block cascading of channel coding, can solve problems such as poor performance and performance impact, and achieve the effect of ensuring burst performance, large coding gain, and large interleaving gain

Inactive Publication Date: 2011-12-07
ZTE CORP
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Because the performance of the burst mainly depends on the size of the smallest coding block, that is, the smaller the smallest coding block, the worse the performance, so if the smallest coding block generated by segmentation is too small, it will seriously affect the performance of the entire burst

Method used

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  • Method for partitioning encoding block

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Embodiment Construction

[0042] The technical solution of the present invention will be described in more detail below with reference to the drawings and embodiments.

[0043] In this article, floor is the round-down function, and ceil is the round-up function.

[0044] Let the MAC layer send a K-bit burst to the channel coding chain of the physical layer for processing, for example figure 2 , the present invention will give an effective strategy for code block segmentation.

[0045] Coded block length is usually described by the number of bits. However, here, under the known coding and modulation mode and parameter conditions (code rate r and modulation order m), the coding block length of the present invention needs to be described by the number of physical resource block PRB concatenations. Here, for known coding and modulation schemes and parameters, the maximum coded block length is the maximum number j of PRB concatenations.

[0046] The present invention provides how to determine the number...

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Abstract

The present invention discloses a coding block dividing method. The device comprises a coding block dividing unit, a code modulation processing unit, a mapping unit, a first calculating unit and a second calculating unit. The method comprises the following steps: setting to divide the burst to k coding blocks in total; if the burst length n<=cascade connection number j of physical resource block of the maximum coding block, then taking the whole burst as a coding block with length for n; otherwise if the n is integer times of j, dividing the burst to k coding blocks with length for j; if the n is not integer times of j, dividing the burst to k1 coding blocks with length for m1 and k2 coding blocks with length for m2; and at last mapping the divided coding blocks to the physical resource blocks with a corresponding number after procession. The coding device according to the invention can reasonably divide the burst and guarantees that the smallest coding block generated by dividing is as large as possible thereby obtaining the purpose of guaranteeing the burst capability and obtaining larger coding gain and interweaving gain.

Description

technical field [0001] The present invention relates to a digital communication system, in particular to a method and device for concatenating physical resource blocks of channel coding in the digital communication system. Background technique [0002] A digital communication system usually includes a source, a source coder, a channel coder, and a modulator at the transmitting end, and a demodulator, a channel decoder, a source decoder, and a sink at the receiving end, such as figure 1 shown. The channel encoder is used to introduce redundant information to the information bits according to certain rules so that the channel decoder at the receiving end can correct the bit errors that occur when the information is transmitted on the channel to a certain extent. [0003] In wireless interface technology, baseband processing is often the most important. The baseband processing process before physical channel mapping is mainly the channel coding chain. The channel coding chain ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03M13/01
Inventor 徐俊
Owner ZTE CORP
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