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Method for sending and receiving response information, communication device and system

A technology for communication equipment and response information, which is applied in the field of communication systems, and can solve problems such as long time and inability to meet the requirements of low latency of V2X communication

Active Publication Date: 2021-03-30
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In V2X communication, a terminal device can only receive information or send information within a subframe, therefore, the first terminal device sends information to the second communication device, and the first communication device receives response information from the second terminal device The time required is relatively long, which cannot meet the low-latency requirements of V2X communication

Method used

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  • Method for sending and receiving response information, communication device and system
  • Method for sending and receiving response information, communication device and system
  • Method for sending and receiving response information, communication device and system

Examples

Experimental program
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Embodiment Construction

[0072] exist figure 1 In this method, the first communication device sends data to one or more second communication devices. The data may be information such as the position, speed, and intention of the first communication device, where the intention information may be steering, merging, U-turn, acceleration, and braking. and other information or information such as audio and video. After the second communication device receives the data, if the second communication device receives the data correctly, it will send ACK response information to the first communication device. The communication device sends the data, and if the second communication device does not receive the data correctly, it sends NACK response information to the first communication device, and at this time, the first communication device sends the data to the second communication device again , the second communication device can receive the data again, which improves the reliability of data transmission. In...

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PUM

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Abstract

Provided are a method for sending and receiving response information, and a communication device and system, suitable for use in vehicle networking, self-driving, or ADAS, such as V2X, V2X, LTE-V, and eV2X, the method of transmission comprising: the first communication device sends data to a second communication device on a first symbol set of a first time unit, said first time unit comprising a first symbol set and a second symbol set, and the first symbol set not containing the same symbols as the second symbol set; the first communication device receives response information from the second communication device on the second symbol set of the first time unit, and the response information is used for indicating whether the second communication device has correctly received the data. Hence, data transmission and response information reception are completed within the first time unit, thus reducing the delay of V2X communication.

Description

technical field [0001] The embodiments of the present application relate to a communication system, in particular to a method for sending and receiving response information, a communication device and a system. Background technique [0002] Device to Device (D2D) communication, Vehicle to Vehicle (V2V) communication, Vehicle to Pedestrian V2P (Vehicle to Pedestrian, V2P) communication or Vehicle to Infrastructure / Network V2I / N (Vehicle to Infrastructure / Network , V2I / N) communication is a technology for direct communication between terminal devices. V2V, V2P and V2I / N are collectively referred to as V2X, that is, the vehicle communicates with anything. [0003] Taking V2X communication as an example, the first terminal device will periodically send some information about itself, such as position, speed, intention, etc., to the second terminal device to improve the safety of the vehicle. After receiving the above information sent by the first terminal device, the second term...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/40H04W4/70H04L1/16
CPCH04L1/1607H04L1/16H04W4/40H04W4/46H04W4/70
Inventor 罗俊向铮铮张锦芳卢磊
Owner HUAWEI TECH CO LTD