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Reference signal transmitting method and device, reference signal receiving method and device, vehicle-mounted device and terminal

A reference signal and reference sending technology, which is applied in vehicle equipment and terminals, receiving reference signals, and sending fields, and can solve problems such as undefined transmission of synchronization signals and broadcast channels

Active Publication Date: 2018-12-21
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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  • 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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  • Reference signal transmitting method and device, reference signal receiving method and device, vehicle-mounted device and terminal
  • Reference signal transmitting method and device, reference signal receiving method and device, vehicle-mounted device and terminal
  • Reference signal transmitting method and device, reference signal receiving method and device, vehicle-mounted device and terminal

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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 disclosure provides a reference signal transmitting method and device, a reference signal receiving method and device, a vehicle-mounted device and a terminal. The reference signal transmitting method comprises the following steps: transmission configuration information of a synchronization signal block VSSB in an NR V2X system is determined; the transmission configuration information includes: a transmission period of the VSSB, and a time domain position of a VSSB transmission time window in the transmission period; transmitting, according to the transmission configuration information, NVSSBs in the periodically appearing VSSB transmission time window, and N is an integer greater than or equal to 1; each of the VSSBs 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. Via adoption of the reference signal transmitting method provided in the invention, fast time domain synchronization between the in-vehicle device and the receiving terminal in the NR V2X system can be ensured.

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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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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