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Feedback information sending method and device

A technology of feedback information and sending method, which is applied in the field of sending method and device of feedback information, and can solve problems such as system performance degradation and feedback information not being able to achieve better scheduling

Inactive Publication Date: 2014-04-09
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0022] Considering the problems existing in the related art that the feedback information cannot be well scheduled, leading to system performance degradation, the present invention is proposed. Therefore, the main purpose of the present invention is to provide a method and device for sending feedback information, so as to solve the above problems

Method used

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  • Feedback information sending method and device
  • Feedback information sending method and device

Examples

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example 1

[0047] In a time division duplex system, assuming that an uplink subframe needs to feed back ACK / NACK messages of M downlink subframes, the multiplexed ACK / NACK information is set according to the value of M, and the multiplexed ACK / NACK messages occupy 2 bit message.

[0048] In the case of M>2, the multiplexed feedback information is set to indicate the number of ACKs in the feedback information of M downlink subframes; where, 00 indicates that the number of ACKs is 0 or no ACK / NACK feedback is performed, and 11 indicates ACK The number of ACKs is 1 / 4 / 7 (" / " indicates or), 10 indicates that the number of ACKs is 2 / 5 / 8, and 01 indicates that the number of ACKs is 3 / 6 / 9.

[0049] Specifically, the multiplexed ACK / NACK information is the result of an "AND" operation on multiple ACK / NACK information in one downlink subframe, and the "AND" operation of the ACK / NACK information is specifically: as long as there is One NACK information, the result of the "AND" operation is NACK in...

example 2

[0056] In a time division duplex system, assuming that one uplink subframe needs to feed back ACK / NACK messages of M downlink subframes, the ACK / NACK messages are expressed as 2-bit messages according to the M value.

[0057] When M>=2, in the case of M>2 and M=2, the multiplexed feedback information is set to represent the number of ACKs in the feedback information of M downlink subframes; where, 00 indicates that the number of ACKs is 0 Or no ACK / NACK feedback is performed, 11 indicates that the number of ACKs is 1 / 4 / 7, 10 indicates that the number of ACKs is 2 / 5 / 8, and 01 indicates that the number of ACKs is 3 / 6 / 9.

[0058] Wherein, each ACK / NACK is a result of an AND operation of feedback ACK / NACK in a downlink subframe.

[0059] The "and" operation of ACK / NACK information specifically includes: as long as there is one NACK information in the ACK / NACK information, then the result of the "and" operation is NACK information. When all ACK / NACK information is ACK information, ...

example 3

[0064] In a time division duplex system, assuming that one uplink subframe needs to feed back ACK / NACK messages of M downlink subframes, the ACK / NACK messages are expressed as 2-bit messages according to the M value.

[0065] In the case of M>2 and M=1, the multiplexed feedback information is set to indicate the number of ACKs in the feedback information of M downlink subframes; where 00 indicates that the number of ACKs is 0 or no ACK / NACK feedback is performed , 11 indicates that the number of ACKs is 1 / 4 / 7, 10 indicates that the number of ACKs is 2 / 5 / 8, and 01 indicates that the number of ACKs is 3 / 6 / 9.

[0066] Wherein, each ACK / NACK is a result of an AND operation of feedback ACK / NACK in a downlink subframe.

[0067] The "and" operation of ACK / NACK information specifically includes: as long as there is one NACK information in the ACK / NACK information, then the result of the "and" operation is NACK information. When all ACK / NACK information is ACK information, the "and" T...

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Abstract

The invention discloses a sending method of feedback information and a device thereof, wherein the sending method of feedback information comprises: the feedback information of M down subframes needing to be fed back by up subframes is multiplexed, and the multiplexed feedback information is set according to the value of the M, wherein the M is a natural number; up control information and the multiplexed feedback information are loaded in a physical up control channel used for transmitting the up control information, and are sent in one same subframe. Through the technical proposal, the problem of the system performance reduction caused when right and wrong response information and other up control information are sent in the same subframe is solved.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for sending feedback information. Background technique [0002] In Hybrid Automatic Repeat Request (HARQ for short), not only can error detection be performed on the code sent by the originating end, but also has a certain error correction capability. After receiving the code word, the decoder at the receiving end first checks the error situation. If it is within the error correction capability of the code, it will automatically correct the error. If there are many errors that exceed the error correction capability of the code, but it can detect errors, then The receiving end sends a decision signal to the sending end through the feedback channel, requesting the sending end to resend the information. [0003] In an Orthogonal Frequency Division Multiplex (abbreviated as OFDM) system, a positive / negative acknowledgment (Acknowledged / Non-acknowledged, referred...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/16
Inventor 戴博张禹强郝鹏梁春丽
Owner ZTE CORP
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