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Method, equipment and system for resource allocation of upstream control channel

A technology for controlling channel resources and channel resources, which is applied in the field of uplink control channel resource configuration and can solve problems such as waste of uplink carrier resources.

Active Publication Date: 2011-04-13
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Embodiments of the present invention provide a method, device, and system for configuring uplink control channel resources, which are used to solve the problem that each uplink carrier reserves a corresponding downlink carrier when using carrier aggregation in a long-term evolution multi-carrier system. Feedback resources, resulting in serious waste of resources in the uplink carrier

Method used

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  • Method, equipment and system for resource allocation of upstream control channel
  • Method, equipment and system for resource allocation of upstream control channel
  • Method, equipment and system for resource allocation of upstream control channel

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Embodiment Construction

[0036] Embodiments of the present invention provide a method, device, and system for configuring uplink control channel resources. The method includes: allocating an uplink control channel resource set, the resource set includes multiple channel resource numbers available for ACK / NACK feedback, and judging whether the ACK is being performed. On the uplink carrier fed back by / NACK, whether there is an uplink control channel resource of the physical downlink control channel PDCCH on the downlink carrier to be fed back, and set the identifier of the available resource in the PDCCH according to the judgment result, and the identifier of the available resource is used to mark the user Whether the terminal uses the channel resources in the uplink control channel resource set for ACK / NACK feedback, and the usage of channel resource elements in the set; the user terminal reads the configuration signaling sent by the base station to know the uplink control channel resources Set, detect...

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PUM

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Abstract

The invention discloses a method, equipment and a system for resource allocation of an upstream control channel, wherein the method comprises the following steps: a base station determines whether resources of the upstream control channel corresponding to a feedback physical downstream control channel (PDCCH) exist on an upstream carrier carrying out ACK / NACK (Acknowledgement / Negative Acknowledgement) feedback, and sets identifications of usable resources in the PDCCH according to judging results; and a user terminal detects the PDCCH of a downstream carrier, and uses the corresponding resources to carry out ACK / NACK feedback according to the usable resources in the PDCCH. The invention can solve the problem of resource waste caused by the expense of an upstream feedback channel.

Description

technical field [0001] The present invention relates to wireless communication technology, in particular to a method, device and system for configuring uplink control channel resources. Background technique [0002] The Long-Term Evolution system uses HARQ (Hybrid Automatic Repeat Request; Hybrid Automatic Repeat Request) to improve the reliability of data transmission. When the downlink HARQ function is enabled, the user terminal decodes the received downlink data packets. If the decoding is correct, the ACK is fed back to the base station, and if the decoding fails, NACK is fed back to the base station, and the base station is required to retransmit the data packet. After the downlink persistent scheduling service ends, the base station sends an SPS (Semi-persistent Scheduling) resource release instruction to the user terminal, informing the user terminal to release all resources allocated to the service, and the user terminal will report back to the base station after cor...

Claims

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Application Information

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IPC IPC(8): H04W72/08H04W72/12H04L1/16
CPCH04L1/1861
Inventor 刘婷婷林亚男潘学明沈祖康
Owner DATANG MOBILE COMM EQUIP CO LTD
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