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Method, device and terminal for feeding back ack/nack information

A technology for terminals and waiting for feedback, which is applied in the field of communication and can solve problems such as ACK/NACK large-bit number feedback

Active Publication Date: 2019-01-29
WUHAN HONGXIN TELECOMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This application provides a method for feeding back ACK / NACK information to solve the feedback problem of ACK / NACK with a large number of bits in the case of supporting up to 32 carrier aggregations proposed by the R13 version

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  • Method, device and terminal for feeding back ack/nack information
  • Method, device and terminal for feeding back ack/nack information
  • Method, device and terminal for feeding back ack/nack information

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Embodiment Construction

[0051] In order to make the purpose, features and advantages of the present application more obvious and understandable, the following will describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only It is a part of the embodiments of this application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0052] In order to facilitate those skilled in the art to understand the technical solution of the present application, the application environment of the technical solution of the present application will be briefly described below. The technical solution of the present application can be used in an LTE system that adopts the R13 version and supports aggregation ...

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Abstract

The invention discloses an ACK / NACK information feedback method, an ACK / NACK information feedback device and a terminal. The method comprises the following steps that: the terminal firstly calculates the number of ACK / NACK to be fed back; the terminal carries out AND treatment for the ACK / NACK according to a magnitude relation between the number of ACK / NACK to be fed back and a preset threshold; the terminal performs scrambling, and selects a corresponding modulation mode according to the number of scrambled ACK / NACK to be fed back to modulate the scrambled ACK / NACK; and finally, the terminal performs coding and rate matching, transformation precoding and resource mapping for the modulated ACK / NACK to feed back the ACK / NACK information. According to the technical scheme of the invention, a part of the ACK / NACK is subjected to the AND treatment according to the number of ACK / NACK to be fed back, thereby, the number of ACK / NACK is reduced, and the technical scheme is suitable for the environment of ACK / NACK with a great bit number under the condition of multi-carrier aggregation.

Description

technical field [0001] The present application relates to the communication field, and in particular, relates to a method, device and terminal for feeding back ACK / NACK information. Background technique [0002] A Long Term Evolution (LTE) system uses a hybrid automatic repeat request (Hybrid Automatic Repeat Quest, HARQ) technology to perform interaction between a user equipment (User Equipment, UE) and a network end. The specific implementation process of HARQ is that when the receiver successfully receives the data, it will feed back an acknowledgment message (Acknowledgement, ACK) to the sender, and when the sender receives the ACK fed back by the receiver, it will continue to send the next data; When the receiver fails to receive the data, it will feed back a negative message (Negative Acknowledgment, NACK) to the sender, and when the sender receives the NACK fed back by the receiver, it will resend the data that was not successfully sent. [0003] The standard of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L1/16H04L5/00
CPCH04L1/0003H04L1/0027H04L1/1607H04L5/0055
Inventor 张元雨孙向涛朱宇霞
Owner WUHAN HONGXIN TELECOMM TECH CO LTD