Resource allocation method, base station and communication system

Abstract

The embodiment of the invention discloses a resource allocation method, a base station and a communication system. The method in the embodiment of the present invention includes: when it is necessary to allocate physical uplink control channel PUCCH resources for the user equipment UE, according to the pre-acquired cell identity of the current cell, determine the cell grouping of the current cell; if the cell grouping of the current cell is The first packet cell allocates the PUCCH resource of slot0 to the UE among currently available PUCCH resources, and allocates the PUCCH resource of slot1 to the UE if the PUCCH resource of slot0 has been allocated; The cell group of the current cell is the second group cell, and among the currently available PUCCH resources, allocate the PUCCH resources of slot 1 to the UE, and if the PUCCH resources of the slot 0 have been allocated, allocate the PUCCH resources to the UE PUCCH resource of slot0. The embodiments of the present invention reduce resource interference, improve CSI reliability, and improve LTE downlink performance.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a resource allocation method, a base station and a communication system. Background technique [0002] In an LTE (Long Term Evolution, long-term evolution) system, a user equipment (User Equipment, UE) sends an uplink control message (Uplink Control Information, UCI) to a base station eNodeB through a physical uplink control channel (Physical Uplink Control Channel, PUCCH), and the UCI includes SRI (scheduling request indicator, scheduling request indication), hybrid automatic repeat request confirmation character (Hybrid Automatic RepeatreQuest ACKnowledgment, HARQ-ACK), channel state information (Channel State Information, CSI), where SRI is used to instruct the UE to apply for uplink resources, When the base station receives the instruction, it will allocate PUSCH resources for the UE, and HARQ-ACK is used to indicate the decoding result of downlink transmission;...

AI Technical Summary

Problems solved by technology

[0004] For the currently existing resource allocation methods, the PUCCH resource allocation order of each cell is consistent. When the eNodeB allocates PUCCH resources to the UE, it starts from the RB (usually RB0) with a smaller number near the edge of the frequency band. All resources are allocated without considering the avoidance of time slot resources between different cells. Therefore, regardless of whether the number of users in each cell is small or large at that time, users in adjacent cells will interfere with each other, resulting in CSI solution. The tuning performance is poor, which affects the downlink performance of the LTE system

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