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MCS value determination method and related equipment

A determination method and a technology of difference value, applied in the field of determination of MCS value, can solve the problem of low reliability of data transmission

Pending Publication Date: 2020-10-27
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a method for determining the MCS value and related equipment to solve the problem of low reliability of data transmission in the current direct communication link technology

Method used

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  • MCS value determination method and related equipment
  • MCS value determination method and related equipment
  • MCS value determination method and related equipment

Examples

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Effect test

example 1

[0134] The control node configures or pre-configures the corresponding relationship between the CQI value and the MCS value of the transmitting terminal (ie, the first terminal), and the MCS value range (ie, the first value range) of the transmitting terminal, and configures different MCS values ​​for different speeds. range of values;

[0135] Such as Figure 2a As shown, the transmitting terminal performs transmission block (Transport Block, TB) #1 transmission, assuming that the PSSCH carrying TB #1 transmission carries CSI-RS, and the receiving terminal (ie, the second terminal) receives the CSI-RS carried by TB #1 Afterwards, feed back the CSI (including the CQI value) to the transmitting terminal;

[0136] The transmitting terminal reserves the retransmission resource of TB#1, and the CSI feedback occurs before the N time slots of the reserved retransmission resource (the N time slots are the duration for the transmitting terminal to demodulate the CSI and prepare to re...

example 2

[0145] The control node configures or pre-configures the corresponding relationship between the CQI value and the MCS value of the transmitting terminal (ie, the first terminal), and the MCS value range (ie, the first value range) of the transmitting terminal, and configures different MCS values ​​for different speeds. range of values;

[0146] Such as Figure 2b As shown, the transmitting terminal performs TB#1 transmission, assuming that the PSSCH carrying TB#1 transmission carries CSI-RS, and the receiving terminal (that is, the second terminal) feeds back CSI (including CQI value) to the transmitting terminal.

[0147] The transmitting terminal reserves the transmission resources of the next TB, and the CSI feedback occurs before N time slots of the reserved resources (N time slots are the time for the transmitting terminal to demodulate the CSI and prepare for the next TB transmission), and the transmitting terminal can be in the following Case 3 or Case 4 Select an app...

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Abstract

The invention provides an MCS value determination method and related equipment. The method comprises the following steps: acquiring first channel information of a direct communication link between a first terminal and a second terminal; and determining a first MCS value of the direct communication link based on a modulation and coding scheme (MCS) value limit and the first channel information, andthe MCS value limit comprising a corresponding relationship between the channel information and the MCS value. According to the MCS value determination method provided by the invention, the terminalcan determine the MCS value based on the MCS value limit and the channel information of the direct communication link, so that the determined MCS value is more suitable for data transmission of the direct communication link, and the reliability of data transmission is improved.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method for determining an MCS value and related equipment. Background technique [0002] The direct communication link (Sidelink) technology is one of the hotspots discussed in the third generation partnership project (the 3rd Generation Partnership Project, 3GPP) standardization technology. In the direct communication link technology, terminals (User Equipment, UE) use Direct communication of wireless resources, for example, in the vehicle-to-everything (V2X) system applying the direct communication link technology, vehicle-to-vehicle communication (Vehicle-to-Vehicle Communication, V2V) and vehicle-to-human communication can be realized (Vehicle-to-Pedestrian Communications, V2P) and so on. [0003] Among them, in order to realize the determination of the Modulation and Coding Scheme (MCS) value of data transmission in the direct communication link tec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
CPCH04L1/0026H04L1/0003
Inventor 纪子超刘思綦姜炜邬华明
Owner VIVO MOBILE COMM CO LTD