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Method and equipment for transmitting feedback information

A technology of feedback information and transmission method, which is applied in the field of feedback information transmission, can solve problems such as unbalanced performance, achieve unbalanced performance, increase downlink control signaling overhead, and achieve simple effects

Active Publication Date: 2014-12-17
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The purpose of the present invention is to at least solve one of the above-mentioned technical defects, especially by interleaving the original ACK / NACK feedback information sequence according to a certain rule, so that each time the UE feeds back the same downlink carrier and downlink subframe in different uplink subframes The ACK / NACK feedback information of the frame is located in different positions in the ACK / NACK feedback information sequence to be fed back, which solves the problem of unbalanced performance of UE transmission of ACK / NACK feedback information corresponding to different downlink carriers and downlink subframes

Method used

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  • Method and equipment for transmitting feedback information
  • Method and equipment for transmitting feedback information
  • Method and equipment for transmitting feedback information

Examples

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example 1

[0197] The base station and the UE pre-agreed to perform the interleaving operation of the original ACK / NACK feedback information sequence on all ACK / NACK multiplexing transmission schemes and all ACK / NACK feedback bit numbers, and the UE adopts the transmission scheme of PUCCH Format 1b with channel selection;

[0198] The operation of the UE is as follows:

[0199] The UE needs to perform interleaving operation on the original ACK / NACK feedback information sequence first, such as according to the interleaving method 9, and then select the channel and QPSK state of the interleaved ACK / NACK feedback information sequence according to the ACK / NACK mapping table, after Figure 7 The corresponding processing of the PUCCH Format 1b with channel selection shown is sent;

[0200] The operation of the base station is as follows:

[0201] The base station receives the data sent by the UE, and obtains the received ACK / NACK feedback information based on the received receipt, and further...

example 2

[0203] The base station and the UE pre-agreed to perform the interleaving operation of the original ACK / NACK feedback information sequence on all ACK / NACK multiplexing transmission schemes and all ACK / NACK feedback bit numbers, and the UE adopts the PUCCH new structure transmission scheme based on DFT-S-OFDM;

[0204] The operation of the UE is as follows:

[0205] The UE needs to perform interleaving operation on the original ACK / NACK feedback information sequence first, such as according to the interleaving method 9; then, the interleaved ACK / NACK feedback information sequence is subjected to channel coding combined with RM(32, O) and repetition / truncation Coding accordingly, after Figure 8 The corresponding processed transmission of the new PUCCH structure based on DFT-S-OFDM shown;

[0206] The operation of the base station is as follows:

[0207] The base station receives the data sent by the UE, and obtains the received ACK / NACK feedback information based on the recei...

example 3

[0209] The base station and the UE pre-agreed to perform the interleaving operation of the original ACK / NACK feedback information sequence on a specific number of ACK / NACK feedback bits, and agreed that for PUCCH Format 1b with channel selection, when the number of ACK / NACK feedback bits is greater than 2 bits, the original ACK / NACK feedback sequence is performed. Interleaving operation of NACK feedback information sequence; UE adopts PUCCH Format 1b with channel selection transmission scheme, and needs to feed back 4-bit ACK / NACK in one uplink subframe; then:

[0210] Operations of the UE and the base station are the same as those of the UE and the base station in Example 1.

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Abstract

The embodiment of the invention discloses a method for transmitting feedback information. The method comprises the following steps that: user equipment (UE) generates an ACK / NACK (acknowledgement character / negative acknowledgement character) feedback information sequence required to be fed back, wherein the ACK / NACK feedback information sequence at least comprises two ACK / NACK information bits; the UE performs interlace operation on the ACK / NACK feedback information sequence according to an interlacing rule so as to generate an interlaced ACK / NACK bit sequence; and the UE sends the interlaced ACK / NACK bit sequence. By means of the technical scheme disclosed by the invention, an original feedback information sequence is subjected to interlace operation according to a certain rule first to ensure that the feedback information which is fed back in different uplink subframes by the UE each time and corresponds to same downlink carrier and downlink subframe is positioned at different positions in a feedback information sequence to be fed back, and the problem of unbalanced performance of the UE for transmitting the feedback information corresponding to different downlink carriers and downlink subframes is solved.

Description

technical field [0001] The present invention relates to the field of digital communication, in particular, the present invention relates to a method and equipment for transmitting feedback information. Background technique [0002] LTE-A (Long Term Evolution-Advanced) is the subsequent evolution of LTE technology, commonly known as 3.9G. Compared with 4G, LTE (Long Term Evolution, long-term evolution) has reached the requirements of 4G standards except that the maximum bandwidth and uplink peak rate are slightly lower than the requirements of 4G. The overall technical design of LTE-A, which officially brings LTE into 4G, far exceeds the minimum requirements of 4G. In June 2008, 3GPP (3rd Generation Partnership Project, Third Generation Partnership Project) completed the LTE-A technical requirements report, and proposed the minimum requirements for LTE-A: the peak downlink rate is 1Gbps, the peak uplink rate is 500Mbps, and the Line peak spectrum utilization reaches 15bps / H...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/16
Inventor 高雪娟沈祖康林亚男潘学明丁昱
Owner DATANG MOBILE COMM EQUIP CO LTD