Method, equipment and system of uplink control channel resource allocation

A technology for controlling channel resources and channel resources, which is applied in the field of uplink control channel resource configuration, can solve problems affecting the flexibility and complexity of PDCCH scheduling, and achieve the effect of improving reliability

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

[0008] Embodiments of the present invention provide a method, device, and system for configuring uplink control channel resources, which are used to overcome the long-term evolution upgrade system. For a user terminal configured with multiple transmit antenna ports, if it wants to support PUCCH transmit diversity, it needs to give Both antenna ports are configured with an uplink control channel resource, and it is necessary to limit the number of CCEs in the control area corresponding to the user terminal in the downlink carrier to be fed back or in the downlink subframe and / or limit the CCE aggregation level of the downlink control channel (PDCCH), so that Problems that affect the flexibility of PDCCH scheduling and the complexity of blind detection of PDCCH by user terminals

Method used

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  • Method, equipment and system of uplink control channel resource allocation
  • Method, equipment and system of uplink control channel resource allocation
  • Method, equipment and system of uplink control channel resource allocation

Examples

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Embodiment 1

[0041] Embodiment 1. When the downlink carrier to be fed back or the control region in the downlink subframe does not include the PDCCH for scheduling the PUSCH of the user terminal, and the set of uplink control channel resources allocated to the user terminal includes at least one element, the method specifically includes, for example, Figure 4 Shown:

[0042] Step 401, in the system, the upper layer semi-statically allocates an uplink control channel resource set to the user terminal;

[0043] The resources in the uplink control channel resource set are semi-persistent resources, and the resources in the uplink control channel resource set can be configured through signaling.

[0044] There are N>=1 elements in the set, which correspond to the channel resource numbers available for N ACK / NACK feedbacks. The channel resource elements in the set can be shared by multiple user terminals, and the base station restricts the time-sharing feedback of the user terminals using the...

Embodiment 2

[0092] Embodiment 2. When the downlink carrier to be fed back or the control region in the downlink subframe includes the PDCCH that schedules the PUSCH of the user terminal, the method specifically includes:

[0093] In the system, the upper layer semi-statically allocates an uplink control channel resource set to the user terminal, and there are N>=1 elements in the set, corresponding to N channel resource numbers available for ACK / NACK feedback. The channel resource elements in the set can be shared by multiple user terminals, and the base station restricts the time-sharing feedback of the user terminals using the same channel resource through scheduling, so as to avoid the problem of channel resource collision.

[0094]If on the uplink carrier or uplink subframe for transmit diversity ACK / NACK feedback, the uplink control channel resource corresponding to the downlink carrier or downlink subframe control area CCE to be fed back is sufficient for two antenna ports for transm...

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Abstract

The invention discloses a method, equipment and a system of uplink control channel resource allocation. The method comprises the following steps that a base station distributes an uplink control channel resource set which comprises usable channel resource elements fed back by ACK / NACK; the base station sends subsets according the condition of the channel resource elements contained in the uplink control channel resource set and / or the condition whether uplink control channel resources corresponding to a downlink carrier to be fed back or a downlink subframe control region CCE to be fed back can satisfy all antenna ports and sends down an allocation signaling to a user terminal; and two users of the antenna ports are allocated according to the allocation signaling, and ACK / NACK feedback is carried out by using corresponding channel resources. By applying the method, the device and the system, the problems of PDCCH dispatching flexibility influence by feedback channel resources and the blind test complexity of PDCCH with a user terminal.

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 An acknowledgment (ACK) is fed back to the base station. If the decoding fails, a non-acknowledgment (NACK) is fed back to the base station, requiring the base station to retransmit the data packet. When the downlink persistent scheduling service ends, the base station sends an SPS resource release instruction to the user terminal, informing the user terminal to release all resources allocated to the service, and the user terminal will feed back an ACK to the base station a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/12H04L1/16H04L1/00
CPCH04L1/18H04L5/0053H04W72/0413H04W72/04H04L5/0023H04L5/0055H04L1/06H04L5/0094H04L1/1861H04W72/02H04W72/12H04B7/0613H04W72/23H04B7/0619H04W72/21
Inventor 刘婷婷林亚男潘学明沈祖康
Owner DATANG MOBILE COMM EQUIP CO LTD
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