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Methods and devices for sending and receiving reference signal, vehicle-mounted equipment and terminal

A reference signal and reference transmission technology, applied in the fields of receiving reference signals, transmitting, in-vehicle equipment and terminals, 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

Pending Publication Date: 2022-02-18
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] 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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  • Methods and devices for sending and receiving reference signal, vehicle-mounted equipment and terminal
  • Methods and devices for sending and receiving reference signal, vehicle-mounted equipment and terminal
  • Methods and devices for sending and receiving reference signal, vehicle-mounted equipment and terminal

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Embodiment Construction

[0073] 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.

[0074] 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 invention provides methods and devices for sending and receiving a reference signal, vehicle-mounted equipment and a terminal. The method for sending a reference signal comprises the steps that transmission configuration information of a synchronization signal block VSSB is determined, wherein the transmission configuration information comprises the sending period of the VSSB and the time domain position of a VSSB sending time window in the sending period; and N VSSBs are sent in the periodically appearing VSSB sending time window according to the transmission configuration information, N being an integer greater than or equal to 1. Each VSSB comprises 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 by the invention, the time domain synchronization between the vehicle-mounted equipment and a receiving terminal in an NR V2X system can be quickly completed.

Description

[0001] Divisional Application Statement [0002] This application is based on the divisional application of the Chinese invention patent application with the application number 201880001758.3 and the application date of August 10, 2018. technical field [0003] 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 [0004] 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,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04W72/08
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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