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Uplink open-loop power control method and device and communication equipment

An open-loop power and control method technology, which is applied in the field of wireless communication, can solve the problems of decreased accuracy of uplink open-loop power control and increased overhead, and achieve the effects of improving uplink throughput, reducing overhead, and solving the mismatch of selected beams

Pending Publication Date: 2020-10-30
CHINA MOBILE COMM LTD RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the schemes defined by the protocol have certain disadvantages, resulting in a decrease in the accuracy of uplink open-loop power control or an increase in overhead

Method used

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  • Uplink open-loop power control method and device and communication equipment
  • Uplink open-loop power control method and device and communication equipment
  • Uplink open-loop power control method and device and communication equipment

Examples

Experimental program
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Embodiment 1

[0095] In this embodiment, first, the base station (that is, the network side device) configures N SSB indexes (indexes) or M CSI-RS resourceIDs for a user terminal in the cell through an RRC message, corresponding to N or M resource IDs one by one pusch-PathlossReferenceRS-Id (uplink channel path loss reference index).

[0096] Then, the base station side configures the number nrofReportedRS reported by the L1-RSRP through the RRC message, and obtains CSI-RS resourceIDs and SSB indexes corresponding to the nrofReportedRS according to the L1-RSRP reported by the user terminal.

[0097] Secondly, the base station side selects an appropriate CSI-RS resourceID and SSBindex according to the SRS information reported by the user terminal, and indicates a certain CSI-RS resourceID and SSB index to the user terminal through the DCI information. Specifically:

[0098] For the uplink SRS sent by a user terminal receiving downlink scheduling information, if one of the N beams (such as b...

Embodiment 2

[0105] In this embodiment, first, the base station (that is, the network side device) configures N SSB indexes or M CSI-RS resourceIDs for a certain user terminal in the cell through an RRC message, corresponding to N or M pusch-PathlossReferenceRS- Id and pucch-PathlossReferenceRS-Id.

[0106] Secondly, the base station side selects appropriate X CSI-RS resourceIDs and Y SSB indexes according to the SRS information reported by the user terminal, and activates them through the MAC CE. Specifically:

[0107] For the uplink SRS sent by a user terminal receiving downlink scheduling information, if one of the N beams (such as beam "x") on the base station side and other beams (such as beams "y" and "z") receive If the ratio of RSRP is greater than the preset threshold THR1, the UE is considered to belong to beam "x"; poll in turn until X or Y satisfying CSI-RS or SSB beams are found;

[0108] On the base station side, X or Y beams of pusch-PathlossReferenceRS-Id and pucch-Pathlo...

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Abstract

The invention provides an uplink open-loop power control method and device and communication equipment, and belongs to the technical field of wireless communication. The uplink open-loop power controlmethod is applied to network side equipment, and comprises the following steps: receiving a sounding reference signal SRS reported by a user terminal, and determining a target reference signal estimated by using downlink path loss according to the information of the SRS reported by the user terminal; indicating the target reference signal to the user terminal through downlink control informationDCI. Through the method disclosed in the technical scheme of the invention, the accuracy of uplink open-loop power control can be improved, the overhead caused by RRC frequent reconfiguration is reduced, and the uplink throughput of the user terminal is effectively improved.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to an uplink open-loop power control method and device, and communication equipment. Background technique [0002] The uplink open-loop power control process based on SSB (Sychronization Signal Block, synchronization signal block) and CSI-RS (Channel State Information-reference signals, channel state information reference signal) reference signal introduces beam-level downlink path loss parameters. The protocol defines two Scenarios for obtaining beam-level information: [0003] Based on broadcast message acquisition: the user terminal obtains the corresponding SSBindex (index) by receiving the broadcast message sent by the base station side, and measures the downlink path loss at the beam level according to the SSB index RSRP (Reference Signal Receiving Power, reference signal received power); since the base station side It is impossible to accurately know t...

Claims

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Application Information

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IPC IPC(8): H04W52/10H04W52/14H04W52/24H04W76/27
CPCH04W52/146H04W52/10H04W52/24H04W76/27Y02D30/70
Inventor 郝悦李岩郑毅
Owner CHINA MOBILE COMM LTD RES INST