Method and device for transmitting response message

A technology of replying message and sending method, applied in the direction of error prevention/detection, digital transmission system, electrical components, etc. using return channel, can solve the problem of inability to complete ACK/NACK sending, etc., to achieve the effect of improving performance

Inactive Publication Date: 2011-03-23
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0038] The main purpose of the present invention is to provide a method and device for sending an acknowledgment message, to at least solve the problem that the UE cannot complete the sending of ACK / NACK in some cases above

Method used

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  • Method and device for transmitting response message
  • Method and device for transmitting response message
  • Method and device for transmitting response message

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0110]Embodiment 1: It is applicable to a UE configured to use channel selection to feed back ACK / NACK in an FDD system.

Embodiment 1-1

[0112] Such as Figure 5 As shown, the current base station configures two downlink component carriers / cells for a user equipment (UE), one of which is the primary downlink component carrier / cell (PCC / PCell), and the other is the secondary downlink component carrier / cell (SCC / Scell ); and both PCC and SCC are configured in SU-MIMO mode, that is, a transmission mode containing 2 transmission blocks; the base station configures UE to use channel selection to feed back ACK / NACK; and assumes that SCC uses cross-carrier scheduling , that is to say, the PDCCH corresponding to the SCC is sent on the PCC;

[0113] According to the configured transmission mode of the downlink component carrier / cell, the UE determines that it needs to feed back 4 ACK / NACK response messages, corresponding to the ACK / NACK of the first and second transmission blocks of the PCC and the first and second transmission blocks of the SCC respectively. ACK / NACK; the PUCCH channels corresponding to these 4 ACK / NA...

Embodiment 1-2

[0118] Such as Figure 6 As shown, the current base station configures two downlink component carriers / cells for a user equipment (UE), one of which is the primary downlink component carrier / cell (PCC / PCell), and the other is the secondary downlink component carrier / cell (SCC / Scell ); and both PCC and SCC are configured in SU-MIMO mode, that is, a transmission mode containing 2 transmission blocks; the base station configures UE to use channel selection to feed back ACK / NACK; and assumes that SCC does not use cross-carrier scheduling mode, that is to say, the PDCCH corresponding to the SCC is sent on the SCC;

[0119] According to the configured transmission mode of the downlink component carrier / cell, the UE determines that it needs to feed back 4 ACK / NACK response messages, corresponding to the ACK / NACK of the first and second transmission blocks of the PCC and the first and second transmission blocks of the SCC respectively. ACK / NACK; the PUCCH channels corresponding to th...

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PUM

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Abstract

The invention provides method and device for transmitting a response message. The method comprises the steps that: the type of a current system is determined when a terminal needs to transmit a response message, wherein the response message can be a correct response message ACK or a wrong response message NACK; the type of the system comprises a frequency division duplex FDD system and a time division duplex TDD system; the terminal determines the feedback mode of the response message, wherein the feedback mode consists of a channel selection mode and a physical uplink control channel PUCCH format 3; and the terminal can determine the PUCCH resource of the response message according to the type of the system and the feedback mode, and then transmits the response message by using the determined PUCCH resource. By the method and the device, the problem that a UE (user equipment) can not transmit the response message in some cases is overcome, and the performance of the system is improved.

Description

technical field [0001] The present invention relates to the field of digital communication, in particular to a method and device for sending a response message. Background technique [0002] The rapid development of digital communication systems puts forward higher requirements for the reliability of data communication. However, under harsh channels, especially in high data rate or high-speed mobile environments, serious problems such as multipath interference and Doppler shift affect system performance. Therefore, effective error control technology, especially Hybrid Automatic Repeat Request (HARQ) technology has become a research hotspot in the communication field. [0003] In the HARQ mode, the code sent by the originating end can not only detect errors, but also have certain error correction capabilities. After receiving the codeword, the decoder at the receiving end first checks the error situation, and if it is within the error correction capability of the code, it w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/16
CPCH04L1/1812H04L1/1861
Inventor 梁春丽戴博喻斌杨维维
Owner ZTE CORP
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