Methods and apparatuses for transmitting and receiving reference signals, vehicle equipment, and terminal

A technology for sending reference and signals, which is applied in the field of receiving reference signals, sending, vehicle equipment and terminals, and can solve the problems of undefined transmission of synchronization signals and broadcast channels

Active Publication Date: 2019-01-04
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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  • Methods and apparatuses for transmitting and receiving reference signals, vehicle equipment, and terminal
  • Methods and apparatuses for transmitting and receiving reference signals, vehicle equipment, and terminal
  • Methods and apparatuses for transmitting and receiving reference signals, vehicle equipment, and terminal

Examples

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Embodiment Construction

[0179] 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.

[0180] 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 disclosure provides methods and apparatuses for transmitting and receiving reference signals, vehicle equipment, and a terminal. The method for transmitting the reference signals includes steps: determining transmission configuration information of synchronous signal blocks VSSB in an NR V2X system, wherein the transmission configuration information comprises a transmission period of the VSSBsand a time domain position of a transmission time window of the VSSBs within the transmission period; transmitting N VSSBs in the periodically appearing transmission time window of the VSSBs according to the transmission configuration information, wherein N is an integer greater than or equal to 1, and each VSSB comprises a primary side link synchronous signal (PSSS), a secondary side link synchronous signal (SSSS), a physical side link broadcasting channel (PSBCH) signal and a demodulation reference signal (DMRS). By employing the method for transmitting the reference signals, time domain synchronization between the vehicle equipment and a receiving terminal in the NR V2X system can be rapidly 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 Applications(China)
IPC IPC(8): H04L5/00H04W4/40H04W56/00
CPCH04L5/0051H04W4/40H04B7/0408H04B7/0695H04B7/2041H04L27/26025H04L27/2613H04L27/2666H04L5/0053H04L5/0007H04L5/0023H04W56/0015H04L5/001H04L5/0092H04W56/001H04W72/0446H04W72/0453H04L5/0048H04W72/044
Inventor 李明菊
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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