Signal transmission method, signal transmission apparatus, electronic device and computer-readable storage medium

Patent metadata

Field	Value
Publication number	US-11832279-B2
Application number	US-202117512514-A
Country	US
Kind code	B2
Filing date	Oct 27, 2021
Priority date	May 5, 2017
Publication date	Nov 28, 2023
Grant date	Nov 28, 2023

Abstract

A signal transmission method is provided. The method includes: determining a target device, and transmitting a 5G signal to the target device, where the 5G signal includes a synchronization block, and the synchronization block is used to carry a PBCH, a PSS, an SSS and a DMRS, and the DMRS and the SSS are used as references for a demodulation result of the PBCH. By further setting the DMRS in the synchronization block, both the SSS and the DMRS are used as the references for the demodulation result of the PBCH, thereby ensuring that an adjusted phase of the demodulation result is as same as possible to a phase of the synchronization block before modulation of a transmission device, which greatly eliminates influence of factors such as the Doppler effect on the phase of the synchronization block during a signal transmission process.

First claim

The invention claimed is:

1. A signal transmission method, comprising:
transmitting, by a base station, a synchronization signal block (SSB) to a user equipment (UE); wherein the SSB carries a physical broadcast channel (PBCH), a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a demodulation reference signal (DMRS),
wherein the DMRS comprises a first frequency domain part and a second frequency domain part, the first frequency domain part and the SSS are frequency-division-multiplexed in one symbol, and the DMRS and the SSS are used as references for a demodulation result of the PBCH;
wherein the SSB comprises a first time domain part and a second time domain part, the PSS is in the first time domain part and the SSS is in the second time domain part; and
wherein the first time domain part is located at a head of the SSB.

2. The method of claim 1 , wherein the second frequency domain part and the PSS are frequency-division-multiplexed in another symbol.

3. A signal receiving method, comprising:
receiving, by a user equipment (UE), a synchronization signal block (SSB) from a base station; wherein the SSB carries a physical broadcast channel (PBCH), a primary synchronization signal (PSS), a secondary synchronization signal (SSS) and a demodulation reference signal (DMRS),
wherein the DMRS comprises a first frequency domain part and a second frequency domain part, the first frequency domain part and the SSS are frequency-division-multiplexed in one symbol, and the DMRS and the SSS are used as references for a demodulation result of the PBCH;
wherein the SSB comprises a first time domain part and a second time domain part, the PSS is in the first time domain part and the SSS is in the second time domain part; and
wherein the first time domain part is located at a head of the SSB.

4. The method of claim 3 , wherein the second frequency domain part and the PSS are frequency-division-multiplexed in another symbol.

5. User equipment (UE), comprising:
at least one processor; and
a non-transitory computer-readable storage medium coupled to the at least one processor and storing programming instructions for execution by the at least one processor, the programming instructions instruct the at least one processor to:
receive a synchronization signal block (SSB) from a base station;
wherein the SSB carries a physical broadcast channel (PBCH), a primary synchronization signal (PSS), a secondary synchronization signal (SSS) and a demodulation reference signal (DMRS);
wherein the DMRS comprises a first frequency domain part and a second frequency domain part, the first frequency domain part and the SSS are frequency-division-multiplexed in one symbol, and the DMRS and the SSS are used as references for a demodulation result of the PBCH;
wherein the SSB comprises a first time domain part and a second time domain part, the PSS is in the first time domain part and the SSS is in the second time domain part; and
wherein the first time domain part is located at a head of the SSB.

6. The UE of claim 5 , wherein the second frequency domain part and the PSS are frequency-division-multiplexed in another symbol.

7. A base station, comprising:
at least one processor; and
a non-transitory computer-readable storage medium coupled to the at least one processor and storing programming instructions for execution by the at least one processor, the programming instructions instruct the processor at least one to perform the method of claim 1 .

8. The base station of claim 7 , wherein the second frequency domain part and the PSS are frequency-division-multiplexed in another symbol.

9. A non-transitory computer-readable storage medium comprising instructions which, when executed by a computer, cause the computer to carry out the method of claim 1 .

10. A non-transitory computer-readable storage medium comprising instructions which, when executed by a computer, cause the computer to carry out the method of claim 2 .

11. A non-transitory computer-readable storage medium comprising instructions which, when executed by a computer, cause the computer to carry out the method of claim 3 .

12. A non-transitory computer-readable storage medium comprising instructions which, when executed by a computer, cause the computer to carry out the method of claim 4 .

Assignees

• Beijing Xiaomi Mobile Software Co Ltd

Inventors

• Liu Yang

Classifications

• H04W72/30 Primary

  Resource management for broadcast services · CPC title

• H04J1/06

  Arrangements for supplying the carrier waves {; Arrangements for supplying synchronisation signals (synchronisation in general H03B; frequency multiplication H03B19/00, H03B21/00; mixing H03D7/00, H03D9/00; carrier supply H04L5/10)} · CPC title

• H04L5/0051 Primary

  of dedicated pilots, i.e. pilots destined for a single user or terminal · CPC title

• H04W56/0035 Primary

  detecting errors in frequency or phase · CPC title

• H04L5/0048

  Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091) · CPC title