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A method and device for rate matching

A technology for solving rate matching and starting position, which is applied in the direction of digital transmission system, forward error control, and error prevention, etc. It can solve the problems of delay overhead, increase solution rate matching address storage overhead, etc. The effect of increasing storage overhead and avoiding storage overhead

Active Publication Date: 2022-08-02
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The embodiment of the present invention provides a method and device for de-rate matching to solve the problem in the prior art that the de-rate matching process brings system delay overhead to the system, or increases the de-rate matching address storage overhead

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  • A method and device for rate matching
  • A method and device for rate matching
  • A method and device for rate matching

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Embodiment Construction

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] It is to be understood that reference throughout the specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic associated with the embodiment is included in at least one embodiment of the present invention. Thus, appearances of "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily necessarily referring to the same embodiment....

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Abstract

Embodiments of the present invention provide a de-rate matching method and apparatus. The method includes: acquiring the number of null bits of each code block in the user uplink data, and determining the code stream sequence of the user according to the number of null bits and a preset interleaving sequence data table; number and the code stream sequence, construct the SYS sequence of the user, construct the P1P2 accumulation sequence, and determine the data flag bit sequence of the constructed P1P2 accumulation sequence; according to the number of null bits, the data flag bit The sequence and the RV parameter of the redundancy version of the user are used to determine the starting position sequence for rate matching; according to the starting position sequence, the column starting position and row index position of the user are confirmed to obtain the output sequence. The embodiment of the present invention solves the problem that the understanding rate matching process brings the system delay overhead to the system, or increases the address storage overhead of the rate matching solution.

Description

technical field [0001] The present invention relates to the technical field of mobile communications, and in particular, to a method and device for de-rate matching. Background technique [0002] In a wireless communication system, rate matching refers to the process in which bits on the transmission channel are repeated or punctured. The rate matching is used to match the carrying capacity of the physical channel, so that The channel is mapped to the bit rate required by the transport format. Among them, puncturing is to knock out the current bit, remove it from the bit sequence and move the following bits forward by one in turn; if the number of input bits is more than the number of output bits, it is processed by puncturing. Retransmission means inserting the current bit once between the current bit and the following bit; if the number of input bits is less than the number of output bits, retransmission is used. The passing of rate matching is the opposite of rate match...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00
CPCH04L1/0013H04L1/0068H04L1/0067H04L1/0071
Inventor 王俊
Owner DATANG MOBILE COMM EQUIP CO LTD
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