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Uplink control channel resource allocating method in multi-antenna system and base station

A technology for controlling channel resources and a multi-antenna system, which is applied in the field of communication and can solve problems such as large PUCCH resource overhead.

Active Publication Date: 2015-01-14
DATANG MOBILE COMM EQUIP CO LTD
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  • Claims
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Problems solved by technology

[0034] However, from the perspective of the utilization efficiency of PUCCH resources, since each ACK / NACK transmission of the UE only uses one of the multiple PUCCH resources configured for the UE, in the case of a large number of system users, the system's The PUCCH resource overhead is also relatively large. Obviously, using this method has the problem of large system PUCCH resource overhead.

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Embodiment Construction

[0097] Embodiments of the present invention provide a method for allocating uplink control channel resources in a multi-antenna system and a base station, and determine at least one resource list according to the frequency domain resources reserved by the system for the physical uplink control channel format 1b antenna port port1 based on channel selection , when allocating resource lists for UEs in a cell, multiple UEs can be allowed to share the same resource list to reduce the PUCCH resource overhead. The ACK / NACK feedback resources of the UE collide.

[0098] Such as figure 1 As shown, the uplink control channel resource allocation method in the multi-antenna system provided by the embodiment of the present invention includes:

[0099] Step S101: Determine at least one resource list according to the frequency domain resources reserved by the system for the antenna port port1 of the physical uplink control channel format 1b based on channel selection, and each resource lis...

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Abstract

The invention discloses an uplink control channel resource allocating method in a multi-antenna system and a base station, and relates to a communication technique. At least one resource list is determined according to frequency domain resources reserved by a system for an antenna port port1 based on channel selection in a physical uplink control format 1b; multiple pieces of UE are allowed to share one resource list when the resource lists are allocated to the UE in a cell so that cost of PUCCH resources can be reduced; meanwhile, the UE sharing the same resource list is scheduled in different ACK / NACK feedback windows and accordingly the situation that the ACK / NACK feedback resources of different pieces of UE collide is avoided.

Description

technical field [0001] The present invention relates to communication technology, in particular to a method for allocating uplink control channel resources in a multi-antenna system and a base station. Background technique [0002] The LTE-A (Long Term Evolution Advanced, enhanced long-term evolution) system uses the PUCCH to transmit synchronized UCI (Uplink Control Information, uplink control information). The uplink control information transmitted on the PUCCH mainly includes SRI (Scheduling Request Indicator, scheduling request indication), downlink ACK / NACK feedback and periodic CQI (Channel Quality Indicator, channel quality indicator) / PMI (Precoding Matrix Indicator, precoding matrix indicator) / RI (Rank Information, rank information) reporting information. According to different information carried on the PUCCH, various PUCCH formats are defined, as shown in Table 1. [0003] Table 1 PUCCH format supported by LTE-A system [0004] [0005] The PUCCH is transmitte...

Claims

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Application Information

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IPC IPC(8): H04W72/04
CPCH04W72/0453
Inventor 胡奕曾超君
Owner DATANG MOBILE COMM EQUIP CO LTD
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