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Method and device for sending and receiving feedback information

A technology for feedback information and feedback information groups, which is applied in the fields of sending feedback information and receiving feedback information, and can solve the problems of reducing coding gain and large coding overhead.

Active Publication Date: 2015-06-03
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The feedback information that needs to be sent to the UE is independently coded by independent coding, which requires a large coding overhead and reduces the coding gain

Method used

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  • Method and device for sending and receiving feedback information
  • Method and device for sending and receiving feedback information
  • Method and device for sending and receiving feedback information

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Embodiment Construction

[0172] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0173] see figure 1 , an embodiment of the present invention provides a method for sending feedback information, including:

[0174] Step 101: receiving uplink data sent by the UE;

[0175] Step 102: Determine the first payload length, wherein the first payload length is one of at least two payload lengths in the payload length set;

[0176] Step 103: Determine the position index of the feedback information corresponding to the uplink data in the feedback information group, where the length of the feedback information group is the first payload length;

[0177] Step 104: Map the feedback information corresponding to the uplink data into the feedback information group according to the location index;

[0178] Step 105: Jointly encode t...

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Abstract

The embodiment of the present invention provides the method and device for sending and receiving feedback information, and relates to the communication field. The method for sending the feedback information comprises the steps of receiving the uplink data sent by a user equipment (UE); determining a first load length, wherein the first load length is one of at least two load lengths in a load length set; determining the position index of the feedback information corresponding to the uplink data in a feedback information set, wherein the length of the feedback information set is the first load length; according to the position index, mapping the feedback information corresponding to the uplink data to the feedback information set; according to the first load length, carrying out the jointed coding on the feedback information set; and sending the coded feedback information set. According to the present invention, the coding cost can be reduced, and the coding gain can be improved.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and device for sending and receiving feedback information. Background technique [0002] LTE (Long Term Evolution, long-term evolution) system can use HARQ (Hybrid Automatic Repeat Request, Hybrid Automatic Repeat Request) technology to schedule UE (User Equipment, user equipment) at the physical layer, and then the scheduled UE can send uplink data to the base station , after the base station receives the uplink data sent by the UE, the base station will send feedback information to the UE. [0003] Among them, in the current LTE system, the base station can send feedback information to the UE in the following manner, which can be as follows: after the base station receives the uplink data sent by the UE, obtains the feedback information to be sent to the UE, and then uses an independent encoding method to send the feedback information to the UE. The feedback information sent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L1/16
Inventor 官磊薛丽霞
Owner HUAWEI TECH CO LTD
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