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Information sending method, information receiving method, information sending device, information receiving device and terminal

A technology for information transmission and information reception, applied in the field of communication, to achieve the effect of improving the success rate of decoding, reducing mutual interference, and reducing synchronization delay

Pending Publication Date: 2021-08-17
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This brings new challenges to the design of the NR V2X physical layer structure. The original synchronization signal and broadcast information transmission and reception performed by the UE on the synchronization subframe need to be redesigned, and flexible subcarrier spacing needs to be introduced. Configuration and mechanism for SSB beam scanning or beam repetition to meet NR V2X requirements

Method used

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  • Information sending method, information receiving method, information sending device, information receiving device and terminal
  • Information sending method, information receiving method, information sending device, information receiving device and terminal
  • Information sending method, information receiving method, information sending device, information receiving device and terminal

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0100] like figure 1 As shown, embodiments of the present invention provide an information transmission method, which is applied to the terminal, which includes, but is not limited to the following steps:

[0101] Step 11: Send a straight link synchronization signal block S-SSB, and the S-SSB includes a physical direct link broadcast channel PSBCH scrambled by scrambling sequence. Wherein, the scrambling sequence is determined based on at least one of the first information and the second information.

[0102] Optionally, at least one of the first information and the second information includes at least one of the following: direct wireless frame number DFN at least part of the bit; direct link synchronous broadcast channel block S-SSB index number At least partial bits; at least part of the time slot number. The first scramble sequence and the second scrambling sequence are associated with the target information carried by the S-SSB (such as PSBCH), such as timing information in t...

example 1

[0146] The PSBCH is scrambled by the first diverting sequence, and the scrambled PSBCH is transmitted. Specifically, according to the value of at least partial bits in the first information, the first diverting sequence is selected from the candidate sequence, and the PSBCH load bit sequence is scrambled, and the PSBCH load bit sequence is PBSCH. The PBSCH load of the broadcast message is formed after being interleaved.

[0147] like figure 2 As shown, the terminal generates a broadcast message, generating a PSBCH load, and has been interleaved, and the PSBCH load bit sequence is obtained, and then the PSBCH load bit sequence is scrambled by the first scrambling sequence. After scrassing, the cyclic redundancy check (CRC) is added and the Polaar encoding is performed, and then the rate match is performed, and QPSK modulation is performed for the rate-matched PSBCH sequence, and the resource map is transmitted, thereby transmitting the S-SSB containing the PSBCH.

[0148] The first...

example 2

[0204] The PSBCH is scrambled by the first donor sequence, and the PSBCH is scrambled by the second scrambling sequence; the scrambled PSBCH is transmitted. Specifically, according to the value of the first information, the first diverting sequence is selected from the candidate sequence; then scrambled by the first damper sequence, the PSBCH load bit sequence is scrambled; wherein the PSBCH load bit sequence is a broadcast message in the PBSCH. The PBSCH load is formed after being interleaved. The second scrambling sequence is then selected from the candidate sequence according to the value of the second information; the PSBCH sequence is scrambled by the second scrambling sequence, wherein the PSBCH sequence is the PSBCH load of the broadcast message in the PSBCH. The rate is generated after match.

[0205] like image 3 As shown, the terminal generates a broadcast message, generating a PSBCH load, and has been interleaved, and the PSBCH load bit sequence is obtained, and then th...

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Abstract

The invention discloses an information sending method, an information receiving method, an information sending device, an information receiving device and a terminal, the sending method comprises the following steps: sending a direct link synchronization signal block (S-SSB), the S-SSB comprising a physical direct link broadcast channel (PSBCH) scrambled by a scrambling sequence; wherein the scrambling sequence is determined according to at least one of the first information and the second information. According to the embodiment of the invention, the terminal determines the scrambling sequence of the PSBCH according to at least one of the first information and the second information, and adopts the corresponding scrambling sequence to scramble the PSBCH, so that the mutual interference between different PSBCH channels in a straight-through link can be reduced, the decoding success rate of the PSBCH is improved, and the synchronization time delay of the terminal can be reduced.

Description

Technical field [0001] The present invention relates to the field of communication technologies, and more particularly to one information transmission, receiving method, apparatus, and terminal. Background technique [0002] In Long Time Evolution, LTE Cars and Vehicle-to-everything, V2X, the straight-through link (Sidelink, or side link, side link, etc.) is 300m per 160ms per 160ms Synchronous subframe, terminal (User Equipment, UE, or referred to as user equipment), the Sidelink synchronization signal is transmitted and received on these synchronization subframes, and the UE transmits and receives the synchronization signal on these synchronization subframes and Broadcast information does not perform beam scanning. With the development of the network, in the fifth generation (5 th Generation, 5G) New Radio, NR) system, in order to meet the needs of new application scenarios, 5G NR supports larger bandwidth, flexible subcarrier interval, synchronous signal and broadcast informat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/44H04W56/00H04W76/14H04W76/40
CPCH04W56/001H04W76/14H04W4/44H04W76/40H04W56/00H04L27/26H04L5/00
Inventor 任晓涛赵锐
Owner DATANG MOBILE COMM EQUIP CO LTD
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