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A grant free transmission power control method and device under multi-beam configuration

A technology of transmission power control and power control parameters, which is applied in the field of grantfree transmission power control, can solve problems such as lack of power control parameter configuration, and achieve the effect of configuration

Active Publication Date: 2020-12-08
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a grant free transmission power control method and device under multi-beam configuration, which is used to solve the problem of lack of a solution for how to configure power control parameters at present

Method used

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  • A grant free transmission power control method and device under multi-beam configuration
  • A grant free transmission power control method and device under multi-beam configuration
  • A grant free transmission power control method and device under multi-beam configuration

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Experimental program
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Effect test

Embodiment 1

[0068] In the embodiment of the present invention, for the case that the grant free transmission under the beam configuration is type2 based on DCI activation, and the DCI does not include SRI (Sounding reference signal Resource Indication, sounding reference signal resource indication) indication information, the terminal UE The power control parameters of the PUSCH will be determined according to the grant free service type of the grant free transmission, so as to perform effective power control.

[0069] Preferably, the power control parameters include: sequence number j, wherein sequence number j is the PUSCH target power parameter P 0 and the serial number associated with the path loss compensation factor α.

[0070] In the specific practice process, higher layers can configure multiple PUSCH target power parameters P 0 And multiple path loss compensation factors α, when the terminal uses grant free transmission under the beam configuration in the current transmission cy...

Embodiment 2

[0080] In the embodiment of the present invention, for the case that the grant free transmission under the beam configuration is type1 not based on DCI activation, the terminal UE can also determine the power control parameters of the PUSCH according to the grant free service type of the grant free transmission, so as to perform effective power control.

[0081] Preferably, the power control parameters include: sequence number j, wherein sequence number j is the PUSCH target power parameter P 0 and the serial number associated with the path loss compensation factor α.

[0082] In the specific practice process, higher layers can configure multiple PUSCH target power parameters P 0 And multiple path loss compensation factors α, when the terminal uses grant free transmission under the beam configuration in the current transmission cycle, and the grant free transmission is type2 based on DCI activation, and the DCI does not include SRI indication information, the terminal needs t...

Embodiment 3

[0092] If the grant free transmission under the multi-beam configuration is type2 based on DCI activation, and the DCI includes SRI indication information, the UE determines the power control of the PUSCH according to the SRI indication information and the high-layer configuration parameter SRI-PUSCH PowerControl-Mapping parameter.

[0093] In the embodiment of the present invention, the mapping relationship between the SRI indication field and the power control parameters (j, k, l) is configured by the high-level signaling SRI-PUSCH Power Control-Mapping, where k is also the path loss measurement used Downlink reference signal resource number q d , if the grant free transmission under the multi-beam configuration is type2 based on DCI activation, and the DCI includes SRI indication information, that is, the SRI indication information is dynamically indicated in the DCI, the terminal can use the SRI indication information to determine the path loss The measured downlink refer...

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Abstract

A grant free transmission power control method and apparatus in a multi-beam configuration. The method comprises: if grant free transmission in a multi-beam configuration is a type2 type activated on the basis of a downlink control channel, and the downlink control channel does not comprise sounding reference signal resource indication (SRI) indication information, or if the grant free transmission in the multi-beam configuration is a type1 type not activated on the basis of a downlink control channel, a terminal determines a power control parameter of a physical uplink shared channel according to a grant free service type of the grant free transmission.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for grant free transmission power control under multi-beam configuration. Background technique [0002] With the development of mobile communication business needs, many organizations such as ITU (International Telecommunication Union, International Telecommunication Union for short) have begun to study new wireless communication systems, namely 5G (5Generation New RAT, fifth-generation mobile communication) systems . [0003] The 5G system supports downlink and uplink beamforming transmission technology. When using beamforming grant free transmission, it is necessary to configure the power control parameters of PUSCH (Physical Uplink Shared Channel, physical layer uplink shared channel) for effective power control. , however, there is currently no solution on how to configure the power control parameters. Contents of the invention [0004] ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/14H04W52/42H04B7/0426H04W52/08
CPCH04B7/043H04W52/08H04W52/146H04W52/42H04B7/0426H04W52/14
Inventor 林祥利郑方政
Owner DATANG MOBILE COMM EQUIP CO LTD