Method, device, vehicle-mounted device, and terminal for sending and receiving reference signals

A reference signal and reference transmission technology, applied in the field of vehicle equipment and terminals, receiving reference signals, and transmitting, which can solve the problem of undefined transmission of synchronization signals and broadcast channels, improve the efficiency of time domain synchronization, ensure immediacy, and reduce costs effect of time

Active Publication Date: 2022-01-18
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In the 5G NR system, V2X technology is also introduced, but the transmission of synchronization signals and broadcast channels has not yet been defined

Method used

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  • Method, device, vehicle-mounted device, and terminal for sending and receiving reference signals
  • Method, device, vehicle-mounted device, and terminal for sending and receiving reference signals
  • Method, device, vehicle-mounted device, and terminal for sending and receiving reference signals

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Embodiment Construction

[0158] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0159] The terminology used in the present disclosure is for the purpose of describing particular embodiments only, and is not intended to limit the present disclosure. As used in this disclosure and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the ...

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Abstract

The present disclosure provides a method, device, vehicle-mounted equipment, and terminal for sending and receiving a reference signal, wherein the method for sending a reference signal includes: determining transmission configuration information of a synchronization signal block VSSB in an NR V2X system, and the transmission configuration information Including: the sending cycle of the VSSB, the time domain position of the VSSB sending time window in the sending cycle; according to the transmission configuration information, sending N of the VSSBs in the periodically occurring VSSB sending time window, N is an integer greater than or equal to 1; wherein, each VSSB includes: a primary side link synchronization signal PSSS, a secondary side link synchronization signal SSSS, a physical side link broadcast channel PSBCH signal and a demodulation reference signal DMRS. By adopting the method for sending a reference signal provided in the present disclosure, it can be ensured that the time domain synchronization between the on-vehicle device and the receiving terminal in the NR V2X system can be quickly completed.

Description

technical field [0001] The present disclosure relates to the field of communication technologies, and in particular to a method and device for sending and receiving a reference signal, a vehicle-mounted device, and a terminal. Background technique [0002] In the LTE V2X (Vehicle-to-Everything, vehicle-to-everything) technology, for example, in the V2V (Vehicle-to-Vehicle, communication between vehicles) application scenarios, due to the possibility of two vehicles meeting each other, This makes the relative speed almost twice that of a single vehicle, thus making the Doppler frequency shift larger. In order to combat the large Doppler frequency shift value, within 1ms subframe (subframe), V2X PSSS (Primary Sidelink Synchronization Signal, primary side link synchronization signal) and SSSS (Secondary Sidelink Synchronization Signal, secondary side link synchronization Signal) occupy two symbols, and PSBCH (Physical Sidelink Broadcast Channel, Physical Sidelink Broadcast Cha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W56/00H04W72/04H04W4/40
CPCH04L5/0037H04L5/0048H04L5/006H04W72/542H04W4/40H04L5/0053H04W56/001H04J11/0069H04W48/10H04W92/18H04W72/20H04W72/23
Inventor 李明菊
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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