PUCCH resource allocation method and device

Abstract

The invention relates to the field of communication, in particular to a PUCCH resource allocation method and a PUCCH resource allocation device, and aims at avoiding terminal allocationfailure. The method comprises the following steps of: judging whether PUCCH resource is not allocated to N to-be-selected uplink time slots of a terminal; if YES, selecting one to-be-selected uplink time slot fromthe N to-be-selected uplink time slots, ifdetermining that there is idle PUCCH resource in a PUCCH resource set corresponding to a currently selected to-be-selected uplink time slot, configuring the idle PUCCH resource for the terminal to perform HARQ-ACK information feedback, and otherwise configuring the idle PUCCH resource for the terminal to perform HARQ-ACK information feedback based on the allocated PUCCH resources. Thus, the situation of scheduling failure caused by the absence of PUCCH resources is effectively reduced, the multiplexing rate of the PUCCH resources is improved, and the number of available PRB resources is increased at the same time.

Description

Technical field [0001] The present invention relates to the field of communications, in particular to a method and device for allocating PUCCH resources. Background technique [0002] At present, in the 5G system, the terminal can transmit the uplink hybrid automatic repeat reQuest (Hybrid Automatic Repeat reQuest, HARQ-ACK) information to the base station through the physical uplink control channel (Physical Uplink Control CHannel, PUCCH), where the uplink HARQ-ACK The ACK information can be fed back together with control information such as Channel State Information (CSI) and Scheduling Request (SR), so it is collectively referred to as UPLINK CONTROL INFORMATION (UCI). [0003] In wireless networks, the base station side of the network generally configures the terminal with 1 to 4 PUCCH resource sets, denoted as PUCCHSET 0~PUCCH SET 3, hereinafter referred to as SET 0~SET 3. When instructing the terminal to feed back HARQ-ACK information through DCI, The base station first dete...

AI Technical Summary

Problems solved by technology

[0022] According to the existing method, since SET1_A only contains 8 PUCCH resources, but there are 10 terminals that need to use PUCCH resources, therefore, there will be 2 terminals that fail to be scheduled because they are not allocated PUCCH resources, and although there are idle PUCCH resources in SET1_B PUCCH resources cannot be allocated for use by the above two terminals

[0023] Obviously, the existing PUCCH resource allocation scheme does not make full use of PUCCH resources, and it is easy to cause the terminal to fail in scheduling due to lack of PUCCH resources

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