Cooperative user equipment determination method and equipment

Abstract

The invention discloses a cooperative user equipment determination method and equipment, which are applied to first equipment in an uplink multi-user cooperative diversity technology. The uplink multi-user cooperative diversity technology comprises the first equipment and second equipment, the first equipment is source user equipment, and the second equipment is cooperative user equipment. The method comprises the following steps: first equipment sends cooperation request information to a plurality of candidate equipment, wherein the cooperation request information is used for the plurality of candidate equipment to judge whether a cooperation condition is satisfied; the first equipment receives cooperation response information sent by the one or more candidate equipment, and the cooperation response information is response information sent to the first equipment when the one or more candidate equipment judge that the cooperation condition is met; and the first equipment determines second equipment according to the cooperation response information, and sends cooperation confirmation information to the second equipment. According to the scheme, cooperative diversity transmission is realized, and the cooperative transmission delay is reduced.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a method and device for determining cooperative user equipment. Background technique [0002] Uplink multi-user cooperative diversity means that multiple user equipments cooperate to transmit the same data to the base station, so as to improve the reliability of data transmission of a single user equipment. Wherein, a user equipment (user equipment, UE) that assists in data transmission is referred to as a cooperating UE, and the assisted user equipment is referred to as a source UE. Data transmission is performed between the source UE and the coordinating UE through short-distance wireless communication, such as Wi-Fi Direct (Wi-Fi Direct) technology and the like. [0003] In the coordinated diversity transmission phase, after the source UE sends an uplink scheduling request to the base station, the base station configures resources for the source UE and ...

AI Technical Summary

Problems solved by technology

However, in the New Radio (NR) system, in each downlink bandwidth subset (bandwidth part, BWP) in the serving cell, multiple search space sets are configured for the UE, where each search space set contains one or For search spaces with multiple aggregation levels, when the detection cycle and time slot offset in the time domain configuration information of the PDCCH search space set of the source UE and the cooperative UE are greatly different, it may lead to the situation that the coordinated transmission cannot be realized

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