Multicarrier system and transmission method of correct/incorrect response information thereof

A multi-carrier system, error response technology, applied in transmission systems, digital transmission systems, error prevention/detection using return channels, etc., can solve problems such as no solution

Active Publication Date: 2010-07-28
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the situation of sending ACK/NACK response messa...

Method used

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  • Multicarrier system and transmission method of correct/incorrect response information thereof
  • Multicarrier system and transmission method of correct/incorrect response information thereof
  • Multicarrier system and transmission method of correct/incorrect response information thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0131] Embodiment 1: The correct / error acknowledgment message (ACK / NACK) adopts the bundling (binding) mode, and is fed back on the physical uplink shared channel PUSCH.

Embodiment 1-1

[0132] Embodiment 1-1: as figure 1 As shown, the set of downlink component carriers configured by the base station to the terminal is S, S={DLCC 0 , DLCC 1 , DLCC 2 , DLCC 3}, sharing M=4 downlink component carriers. The component carrier scheduled for PDSCH transmission to a terminal UE on subframe n is {DLCC 0 , DLCC 1 , DLCC 3}, then according to the first feedback method,

[0133] DLCC 0 The value of the DAI field of the PDCCH corresponding to the PDSCH transmission on the

[0134] DLCC 1 The value of the DAI field of the PDCCH corresponding to the PDSCH transmission on the

[0135] DLCC 3 The value of the DAI field of the PDCCH corresponding to the PDSCH transmission on the above is 3.

[0136] Assuming that there is no SPS transmission on the current subframe n, and the base station sends a PDCCH related to PUSCH transmission on a certain downlink component carrier, the value of the DAI field of the PDCCH is 3 after adopting the present invention. The ACK / NA...

Embodiment 1-2

[0143] Embodiment 1-2: as figure 2 As shown, the set of downlink component carriers configured by the base station to the terminal is S, S={DLCC 0 , DLCC 1 , DLCC 2 , DLCC 3}, sharing M=4 downlink component carriers. The component carrier scheduled for PDSCH transmission to a terminal UE on subframe n is {DLCC 0 , DLCC 1 , DLCC 3}, then according to the first feedback method,

[0144] DLCC 0 The value of the DAI field of the PDCCH corresponding to the PDSCH transmission on the

[0145] DLCC 1 The value of the DAI field of the PDCCH corresponding to the PDSCH transmission on the

[0146] DLCC 3 The value of the DAI field of the PDCCH corresponding to the PDSCH transmission on the above is 3.

[0147] Assuming that there is no SPS transmission on the current subframe n, and the base station sends a PDCCH related to PUSCH transmission on a certain downlink component carrier, the value of the DAI field of the PDCCH is 3 after adopting the present invention. The ACK / N...

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Abstract

The invention discloses a multicarrier system under large bandwidth and a transmission method of correct/incorrect response information thereof. The multicarrier system consists of a base station and a terminal, wherein the base station indicates downlink allocation indexes on a physical downlink control channel; and the terminal transmits the correct/incorrect responses information in terms of a binding or multiplexing manner allocated to the terminal by the base station on the physical uplink shared channel or the physical uplink control channel according to the received downlink allocation indexes, actually-detected component carrier amount and the correct/incorrect responses information corresponding to each code stream transmitted by the physical downlink shared channel of the downlink component carrier obtained from physical downlink shared channel detection. When the incorrect response information is transmitted, the reason to the incorrect response information is indicated to the base station according to the binding or multiplexing mode allocated to the terminal by the base station. The invention can realize transmission of the correct/incorrect response information under the condition that downlink allocation information is probable to lose.

Description

technical field [0001] The invention relates to the field of digital communication, in particular to a multi-carrier system with large bandwidth and a method for sending correct / error response messages in the multi-carrier system. 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,...

Claims

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Application Information

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IPC IPC(8): H04L1/16
CPCH04L1/1861H04L1/1671
Inventor 梁春丽夏树强米德忠戴博
Owner ZTE CORP
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