Method and equipment for sending uplink control signaling

A technology for controlling signaling and sending methods, applied in the field of sending uplink control signaling

Active Publication Date: 2010-09-15
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is to provide a method and device for sending uplink control signaling, so as to solve the problem of simultaneous sending of response messages and SR and CSI respectively in carrier aggregation systems

Method used

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  • Method and equipment for sending uplink control signaling
  • Method and equipment for sending uplink control signaling
  • Method and equipment for sending uplink control signaling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Assume that the number of downlink component carriers scheduled to the UE according to the DAI learned by the UE is V DAI DL , and a positive SR message needs to be sent at the same time.

specific Embodiment 1-1

[0060] suppose U detected by UE DAI = 1, then the UE judges that the downlink configuration information is lost, then let b(0)b(1)=[0 0], then the UE sends '00' on the SR PUCCH resource allocated to it;

specific Embodiment 1-2

[0062] suppose U detected by UE DAI= 2,N SPS = 0, the response messages of the PDSCH carried by the two downlink component carriers are respectively {ACK, NACK}, where the response message is that the number of ACK is 1, then b(0)b(1)=[1 1], then the UE Send '11' on the SR PUCCH resource allocated to it;

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PUM

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Abstract

The invention discloses a method and equipment for sending uplink control signaling and aims to solve the problem that a response message in a carrier wave aggregation system is sent synchronously with an SR and CSI respectively. The method and the equipment are suitable for a scene that the response message in the uplink control signaling and other uplink control signaling except the response message are sent synchronously on an uplink component carrier wave. The method comprises the following steps that: UE receives a PDSCH sent by a base station and borne on a downlink component carrier wave; when judging that downlink configuration information occurs, the UE sets the contents of the response message as information representing DTX; and when judging that the loss of the downlink configuration information does not occur, the UE sets the contents of the response message information representing the number of correctly received PDSCH borne on the downlink component carrier wave or sets the contents of the response message as information representing the number of wrongly received PDSCH borne on the downlink component carrier wave, and feeds the response message back to the base station.

Description

technical field [0001] The invention relates to the field of digital communication, in particular to a method and equipment for sending uplink control signaling. 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, Hybrid Automatic Repeat Request) technology has become a research hotspot in the communication field. [0003] In the downlink HARQ of the long-term evolution system (LTE, Long Term Evolution), the ACK / NACK (Acknowledgment / Negative Acknowledgment) response message of the physical downlink shared channel (PDSCH, Physical Downlink Shared Channel) has no physical uplink in the ter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/26H04L1/18
Inventor 杨维维梁春丽夏树强喻斌米德忠
Owner ZTE CORP
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