Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method and terminal for adjusting HARQ buffer memory amounts

A buffering capacity and terminal technology, applied in the communication field, can solve the problems of reducing retransmission HARQ combining gain, reducing decoding performance, increasing terminal cost, etc.

Active Publication Date: 2013-11-27
HONOR DEVICE CO LTD
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] When the bit soft value discarding scheme suitable for terminal level 4 is directly applied to terminals higher than level 4, due to too many discarded bit soft values, in the case of a large number of HARQ retransmissions, the retransmission HARQ combination is reduced Gain, thereby reducing the decoding performance, which leads to the incorrect transmission of information; and if the protocol is maintained, that is, no soft value of any bit is discarded, the terminal is required to set a sufficiently large buffer, which increases the cost of the terminal

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 terminal for adjusting HARQ buffer memory amounts
  • Method and terminal for adjusting HARQ buffer memory amounts
  • Method and terminal for adjusting HARQ buffer memory amounts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0078] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0079] figure 1 A method for adjusting the HARQ buffer size provided by the embodiment of the present invention is described. The method is executed by the terminal, and can be applied to the information transmission process based on turbo coding between the base station and the terminal under the LTE system architecture. This embodiment include:

[0080] 101. The receiving base station sends coding information corresponding to one coding block.

[0081] A CB is ...

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 provides a method and terminal for adjusting HARQ buffer memory amounts, and relates to the technical field of communication. The method comprises the steps of reducing the rated HARQ buffer memory amounts of code blocks according to the rated proportions, then judging whether the HARQ buffer memory amounts after reduction are within a preset threshold range or not, if the HARQ buffer memory amounts after reduction are within the preset threshold range, only saving a part of encoding information, setting the rated proportions to guarantee that the encoding performance of the encoding information after reduction can not be greatly reduced, and then setting the threshold range to limit the condition for reducing the HARQ buffer memory amounts. By means of the technical scheme, under the condition that the encoding performance is ensured, the HARQ buffer memory amounts can be reduced in use. The method and terminal for adjusting the HARQ buffer memory amounts are mainly applied to the processes of turbo encoding and decoding and transmission of related information.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a method for adjusting a buffer size and a terminal. Background technique [0002] Long Term Evolution (LTE, Long Term Evolved) uses Adaptive Modulation and Coding (AMC, Adaptive Modulation and Coding) and Hybrid Automatic Repeat Request (HARQ, Hybrid Automatic Repeat Request) technologies to perform wireless link quality adaptation and retransmission Error correction. The HARQ technology in LTE adopts incremental redundancy (IR, Incremental Redundancy) HARQ, that is to say, the evolved base station (eNodeB, Evolved Node B) only sends information bits and some redundant bits during the first transmission, In the subsequent retransmission process, additional redundant bits are sent. In this way, if the terminal fails to decode the information received for the first time, it can ask the eNodeB to retransmit more redundant bits to reduce the channel coding rate, t...

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): H04L1/18H04W28/14
CPCH04L1/1819H04L1/1835
Inventor 张福强
Owner HONOR DEVICE CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products