Unlock instant, AI-driven research and patent intelligence for your innovation.

Power adjustment method, device and system

A technology for power adjustment and terminal equipment, which is applied in the field of communication and can solve problems such as channel estimation deviation.

Active Publication Date: 2020-07-07
HUAWEI TECH CO LTD
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, for the entire CSI-RS, P in existing RRC signaling c The value is fixed, that is, the entire CSI-RS configuration bandwidth shares one P c Adjust the CSI-RS channel estimation results
but if Figure 1a As shown, the CSI-RS configuration bandwidths of different terminal devices may overlap, using the existing configured P c The value adjusts the power of the CSI-RS configuration bandwidth, and there will be deviation in channel estimation

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Power adjustment method, device and system
  • Power adjustment method, device and system
  • Power adjustment method, device and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0067] In order to facilitate the understanding of the solutions in the embodiments of the present application, a brief introduction or definition of related technologies is first given as follows:

[0068] First, initial power adjustment information

[0069] The initial power adjustment information in this embodiment of the present application refers to the power adjustment information required by the network device to indicate to the terminal device when adjusting the CSI-RS channel estimation of the CSI-RS configuration bandwidth. The initial power adjustment information may be, for example, the P c value, P c Indicates the ratio of the PDSCH RE power indicated by the network device to the CSI-RS RE power. Alternatively, the initial power adjustment information may also be the same as the P c The value has a certain numerical value that has a mapping relationship, for example, the multiplexing times N=1 of the CSI-RS configured bandwidth. Alternatively, the initial powe...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Provided are a power adjustment method, device and system, and the method comprises the steps that network equipment configures a channel state information reference signal (CSI-RS) configuration bandwidth for terminal equipment, and determines respective power adjustment information of a plurality of frequency bands on the CSI-RS configuration bandwidth, wherein for any frequency band in the plurality of frequency bands, the power adjustment information of the frequency band comprises the multiplexing times N of the frequency band or a parameter value determined according to the multiplexingtimes N, and N is a positive integer; the network equipment sends indication information for indicating the power adjustment information of each of the plurality of frequency bands on the CSI-RS configuration bandwidth to the terminal equipment; after receiving the indication information from the network equipment, the terminal equipment adjusts the CSI-RS channel estimation of the respective corresponding frequency band according to the plurality of pieces of power adjustment information. Compared with the scheme that the whole CSI-RS configuration bandwidth shares one Pc to adjust the CSI-RSchannel estimation result in the prior art, the scheme can improve the accuracy of channel estimation when the CSI-RS is multiplexed.

Description

technical field [0001] The present application relates to the technical field of communication, and in particular to a power adjustment method, device and system. Background technique [0002] A fifth-generation (5th-generation, 5G for short) (also called a new radio (NR for short)) communication system is a next-generation communication system currently being studied. The 5G communication system has higher requirements on system capacity and spectrum efficiency. [0003] In a mobile communication system, the channel state information (CSI) fed back by the terminal equipment to the base station has a great impact on the performance of the communication system. Therefore, accurate channel estimation (that is, measuring the CSI of the downlink channel) is an important factor affecting system performance. . Currently, a terminal device needs to rely on a CSI-reference signal (reference signal, RS) sent by a base station to perform channel estimation. In order to obtain bette...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04W52/24H04W72/12H04B17/309H04B17/382H04L5/00H04L25/02
CPCH04W52/241H04W72/121H04B17/309H04B17/382H04L5/0053H04L25/0202H04W72/54H04W72/23H04W52/24H04L25/02H04W72/12H04L5/00
Inventor 尹海帆刘永金黄平毕晓艳
Owner HUAWEI TECH CO LTD