Power control method of physical sidelink feedback channel and terminal

A technology of feedback channel and power control, applied in the field of communication, can solve the problem of inability to determine the transmission power of PSFCH

Active Publication Date: 2020-10-27
VIVO MOBILE COMM CO LTD
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Embodiments of the present invention provide a power control method and a terminal for a physical sidelink fee

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 control method of physical sidelink feedback channel and terminal
  • Power control method of physical sidelink feedback channel and terminal
  • Power control method of physical sidelink feedback channel and terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Assumption: the terminal performs sidelink multicast communication, and the communication range of a certain multicast service is 400m. According to the QoS requirements, it is determined that the value range of the PSFCH power adjustment window is [3dBm, 20dBm], that is, about [0.005w, 0.1w]. Assuming that the mapping relationship between the distance between the receiving terminal and the transmitting terminal and the PSFCH transmission power is a linear correlation, the formula is expressed as:

[0049]

[0050] Among them, x represents the actual distance between the receiving terminal and the transmitting terminal, y represents the transmission power of PSFCH; 0.2 is the maximum transmission power of the receiving terminal 0.2w, which is 23dBm; 500 is the cut-off point N of the distance between the receiving terminal and the transmitting terminal at the maximum transmission power.

[0051] Taking the sending terminal as UE1 and the receiving terminals as UE2, UE...

Embodiment 2

[0072] Assumption: the terminal performs sidelink multicast communication, and the communication range of a certain multicast service is 500m. Determine a set of PSFCH power adjustment candidate values ​​(+5dB, +3dB, +1dB, -1dB, -3dB) according to QoS requirements;

[0073] The relationship between the distance between the receiving terminal and the sending terminal and the power adjustment candidate value is as follows:

[0074] The distance between the receiving terminal and the transmitting terminal (0, 100m) corresponds to the power adjustment value -3dB;

[0075] The distance between the receiving terminal and the transmitting terminal (100, 200m) corresponds to the power adjustment value -1dB;

[0076] The distance between the receiving terminal and the transmitting terminal (200, 300m) corresponds to the power adjustment value +1dB;

[0077] The distance between the receiving terminal and the transmitting terminal (300, 400m) corresponds to the power adjustment value ...

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

The invention provides a power control method of a physical sidelink feedback channel and a terminal, and relates to the technical field of communication. The power control method of the physical sidelink feedback channel comprises the following steps: acquiring a first distance between a receiving terminal and a sending terminal; and determining the sending power of the receiving terminal in a physical sidelink feedback channel (PSFCH) according to the first distance. According to the scheme, the sending power of each receiving terminal on the PSFCH is determined based on the distance betweenthe receiving terminal and the sending terminal, and the sending terminal is ensured to receive the feedback information of each receiving terminal on the PSFCH at the similar power, so that the interference and IBE interference between UE are reduced, and the receiving success rate of the feedback information is improved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a power control method and a terminal of a physical sidelink feedback channel. Background technique [0002] Current sidelink (sidelink) transmission is mainly divided into several transmission forms: broadcast (broadcast), groupcast (groupcast) and unicast (unicast). Among them, for multicast communication, it is a one-to-many communication mode. When the Hybrid automatic repeat request (HARQ) function is enabled, if any receiving end user in the group fails to receive correctly, it will cause HARQ retransmission. pass. The HARQ feedback of the receiving terminal is sent on the physical sidelink feedback channel PSFCH. In the related art, there is no clear method to determine the sending power of the receiving terminal on the PSFCH. Contents of the invention [0003] Embodiments of the present invention provide a power control method of a physical sidelink fee...

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): H04W52/24H04L1/18
CPCH04L1/1812H04W52/24H04W52/248
Inventor 姜炜纪子超
Owner VIVO MOBILE COMM CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap