Method and device for decoding

A decoding and decoder technology, applied in the field of communication, can solve problems such as high false detection rate, affecting system performance, and detected information verification, so as to increase occupied time, improve system performance, and reduce false detection rate Effect

Inactive Publication Date: 2013-01-02
ZTE CORP
View PDF9 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] a) Data calculation takes up a lot of processing time and affects the performance of the entire system;
[0009] b) There is no verification of the detected information, which may lea

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and device for decoding
  • Method and device for decoding
  • Method and device for decoding

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0029] Hereinafter, the present invention will be described in detail with reference to the drawings and in conjunction with the embodiments. It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other if there is no conflict.

[0030] In the LTE system, the error check of the downlink control information (Downlink Control Information, DCI for short) is completed through the cyclic redundancy check (CRC) in the DCI transmission information. Assuming that the effective bit of PDCCH is a 0 , A 1 , A 2 , A 3 ,..., a A-1 , Then the parity p 0 , P 1 , P 2 , P 3 ,..., p L-1 , Where A is the number of payload bits of the PDCCH, L is the number of check bits, and the length of the check bit of the DCI information of the control channel is set to L=16.

[0031] g CRC16 (D)=[D 16 +D 12 +D 5 +1], CRC length L=16, input bits and polynomials undergo certain operations to get the output sequence b 0 , B 1 , B 2 , B 3 ,..., b B-...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method and a device for decoding. The method includes that a first decoder is used for decoding soft information of a physical downlink control channel to acquire a first decoding result and attribute information of physical downlink control information; a second decoder is used for decoding the soft information according to the attribute information of the physical downlink control information to acquire a second decoding result; the first decoding result is compared with the second decoding result, and then the conclusion that the first decoder decodes the soft information successfully is determined when the first decoding result is consistent with the second decoding result. By the method and the device for decoding, accuracy in decoding of the physical downlink control channel (PDCCH) and system performance of user equipment can be improved.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a decoding method and device. Background technique [0002] The 3rd Generation Partnership Project (3GPP) proposes a Long Term Evolution (LTE) system of 3GPP air technology. The LTE system needs to support multi-antenna technology with lower delay, higher user data rate, larger system capacity, larger coverage and lower cost. In order to meet its high-speed transmission requirements for real-time services, broadcast and multicast services, in terms of channel coding and decoding technology, the LTE system adopts tail-biting convolutional coding and Turbo coding. [0003] Tail-biting convolutional encoding takes the last few bits of the data block to be encoded as the initial state of the registers in the encoder, forcing each codeword to have the same state at the beginning and end. This encoding method increases the complexity of decoding while improving the encoding efficie...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H03M13/09
CPCH03M13/3738H03M13/6525H03M13/413H03M13/09
Inventor 杜文亮
Owner ZTE CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap