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Power control information notification and power control method and device

A technology of power control information and signaling notification, applied in power management, wireless communication, electrical components, etc.

Active Publication Date: 2016-08-03
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] Embodiments of the present invention provide a power control information notification and a power control method and device, which are used to solve the problem of how to make the SRS sent by the terminal meet different measurement requirements

Method used

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  • Power control information notification and power control method and device
  • Power control information notification and power control method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0115] Step 1: The base station configures multiple SRS power control processes for the UE, and each configured SRS power control process corresponds to a set of SRS power control parameters; the UE receives multiple SRS power control processes configured by the base station and the SRS corresponding to each SRS power control process power control parameters;

[0116] Specifically, the base station configures two SRS power control processes for the UE, and the SRS power control parameters corresponding to one SRS power control process (process 1) are the SRS power control parameters in the current protocol, and the SRS transmission power in the current protocol is used for calculation The formula, the SRS power control parameters corresponding to another SRS power control process (process 2) contains the following parameters different from process 1:

[0117] SRS transmit power adjustment value P SRS_OFFSET，c (m);

[0118] SRS-specific closed-loop power control parameter f ...

Embodiment 2

[0128] Step 1: The base station configures multiple SRS power control processes for the UE, and each configured SRS power control process corresponds to a set of SRS power control parameters; the UE receives multiple SRS power control processes configured by the base station and the SRS corresponding to each SRS power control process power control parameters;

[0129] Specifically, the base station configures two SRS power control processes for the UE, and the SRS power control parameters corresponding to one SRS power control process (process 1) are the SRS power control parameters in the current protocol, and the SRS transmission power in the current protocol is used for calculation The formula, the SRS power control parameters corresponding to another SRS power control process (process 2) contains the following parameters different from process 1:

[0130] SRS transmit power adjustment value P SRS_OFFSET，c (m);

[0131] SRS-specific closed-loop power control parameter f ...

Embodiment 3

[0142] Step 1: The base station configures multiple SRS power control processes for the UE, and each configured SRS power control process corresponds to a set of SRS power control parameters; the UE receives multiple SRS power control processes configured by the base station and the SRS corresponding to each SRS power control process power control parameters;

[0143] Specifically, the base station configures two SRS power control processes for the UE, and the SRS power control parameters corresponding to one SRS power control process (process 1) are the SRS power control parameters in the current protocol, and the SRS transmission power in the current protocol is used for calculation In the formula, the SRS power control parameters corresponding to other SRS power control processes (process 2) include the following parameters that are different from process 1:

[0144] SRS transmit power adjustment value P SRS_OFFSET，c (m);

[0145] SRS-specific closed-loop power control pa...

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Abstract

Embodiments of the present invention discloses a power control information notification and power control method and apparatus, involving the field of wireless communication technology, for solving how to enable the terminal to transmit a probe reference signal SRS can meet different measurement needs of the problem. In the present invention, after determining the SRS power control process employed by the terminal, the SRS power control process used by the terminal is notified to the terminal, the terminal determines the upstream transmission power of the SRS according to the SRS power control parameters corresponding to the SRS power control process, and the SRS transmission is carried out in accordance with the upstream transmission power. With this solution, the SRS sent by the terminal can meet different measurement needs.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a power control information notification and power control method and device. Background technique [0002] In the existing Long Term Evolution-Advanced (LTE-A) system, the Sounding Reference Signal (Sounding Reference Signal, SRS) can be used to measure the quality of the uplink channel, thereby performing uplink scheduling, and can also use channel heterogeneity to obtain Downlink channel information for downlink scheduling and transmission. In a Cooperative Multiple Point Transmission (CoMP) system, due to the independence of uplink and downlink transmission, the channel to be measured for uplink transmission and the channel information to be obtained for downlink transmission are often different, so the transmission of sounding measurement is required The set of points is also different. For uplink transmission, usually the measurement points are relatively close trans...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/14H04W52/08
CPCH04W52/14H04W52/146H04W52/247H04W52/325
Inventor 陈文洪高秋彬彭莹
Owner DATANG MOBILE COMM EQUIP CO LTD