Pucch space division multiplexing method and network side equipment

Abstract

The invention provides a PUCCH space division multiplexing method and network side equipment, belonging to the technical field of wireless communication. Among them, the method of PUCCH space division multiplexing includes: presetting multiple sets of weights for the antenna elements in the antenna array to form multiple received beams; determining the physical downlink control channel PDCCH to send downlink control information DCI0 on the same control channel element CCE The beams to which multiple user terminals belong are scheduled so that each received beam corresponds to the PUCCH channel of different user terminals; the beams composed of different antenna weights are used to respectively receive and demodulate the PUCCH format1 information of the user terminals under them. The technical solution of the present invention can improve the scheduling capability and space division performance of multiple users, thereby improving the spectrum efficiency of the cell.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a PUCCH space division multiplexing method and network side equipment. Background technique [0002] In 2017, in order to continuously improve product performance and further form a deployment plan, pilots and applications of commercial products were carried out in Beijing, Hangzhou, Shenzhen and other provinces and cities. The evaluation results of the existing network show that the uplink and downlink spectrum efficiency of 3D-MIMO (3D-Multiple-Input Multiple-Output, three-dimensional multiple-input multiple-output) can reach 2-3 times that of an 8-antenna base station during busy hours. In addition, by reducing the transmit power of the same coverage cell, a large number of users from other cells are attracted to the 3D-MIMO pilot cell to test the ultimate performance of 3D-MIMO. The limit test results show that the average number of RRC (Radio Resource...

AI Technical Summary

Problems solved by technology

However, for downlink CCE resources, the starting position of the CCE resources of the paired UEs cannot be the same, which will affect the resource allocation of PUCCH (Physical Uplink Control Channel, physical uplink control channel) format (format) 1 (PUCCH format1 does not yet support space division multiplexing), and this also limits the space division gain of PDCCH

[0006] On the basis of the substantial increase in the capacity of the 3D-MIMO service channel, the uplink CCE resources in the PDCCH channel first become the capacity bottleneck because the capacity of the control channel has not been increased.

The implementation-based PDCCH space division multiplexing proposed by the industry currently limits the space division gain of PDCCH to a certain extent because the CCE start positions cannot be the same.

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