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A kind of uplink power control method, terminal equipment and network equipment

A technology of terminal equipment and power control, applied in the field of communication, can solve problems such as reducing UE performance and affecting cell coverage, and achieve the effect of improving performance

Active Publication Date: 2021-11-02
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It can be seen that the current uplink Multiple Input Multiple Output (MIMO) multi-antenna power allocation mechanism cannot guarantee that under the codebook-based uplink transmission scheme, UEs with partial antenna coherent transmission capabilities and non-coherent transmission capabilities will be able to operate at low ranks. The maximum transmission power can be achieved during transmission, which reduces the performance of the UE at the edge of the cell and affects the coverage of the cell

Method used

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  • A kind of uplink power control method, terminal equipment and network equipment
  • A kind of uplink power control method, terminal equipment and network equipment
  • A kind of uplink power control method, terminal equipment and network equipment

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Embodiment Construction

[0766] In order to make the purpose, technical solutions and advantages of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0767] The background technology of the embodiments of the present invention is introduced below.

[0768] The physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) of the NR system of 3GPP NR Release 15 and Release 16 supports two uplink transmission schemes, codebook-based transmission and non-codebook transmission. Wherein, the codebook-based uplink transmission scheme is a multi-antenna transmission technology for determining an uplink transmission precoding matrix based on a fixed codebook.

[0769] In the NR system, the process of the codebook-based uplink transmission scheme is roughly as follows: UE sends to the base station the Sounding Reference Signal ...

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Abstract

The invention discloses an uplink power control method, terminal equipment and network equipment, which are used for improving the performance of the terminal equipment at the cell edge. The uplink power control method includes: determining the power control scaling rule of the uplink signal according to the power capability of the terminal device, and / or determining the power control scaling rule according to the first indication message from the network device; The power of the uplink signal is processed, and the transmit power on each antenna port of the uplink signal is determined according to the processed power.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to an uplink power control method, terminal equipment and network equipment. Background technique [0002] From the perspective of terminal equipment, such as user equipment (UE) performance, when the UE is located at the edge of the cell or the channel condition is poor, the network equipment usually configures a low-rank transmission for the UE, and transmits as much as possible power transfer data. [0003] Currently, under the codebook design of the 3rd Generation Partnership Project (3GPP) wireless access (New Radio, NR) system, for codebook-based uplink transmission, it has partial antenna coherent transmission capabilities and When a UE with non-coherent transmission capability transmits at a low rank, some antenna ports always have no physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) transmission. [0004] It can be seen that the current...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/14H04W72/04H04L5/00H04B7/0456
CPCH04W52/146H04L5/0053H04W72/0473H04B7/0456H04W52/04H04W52/06H04W52/367H04W52/40H04B7/0404H04L5/0048H04L5/0023H04L5/0094H04W52/42H04W52/52H04B7/0426H04W52/18
Inventor 黄秋萍高秋彬陈润华
Owner DATANG MOBILE COMM EQUIP CO LTD