# US 11,910,336 B2 · Signal transmission method and related device

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- Number: US 11,910,336 B2
- Document ID: US11910336B2
- Status: Granted
- Kind: B2
- Application number: 17/374,130
- Filed: 2021-07-13
- Published: 2021-11-04
- Granted: 2024-02-20
- Earliest claimed: 2019-01-18
- Assignees: Huawei Technologies Co., Ltd.
- Applicants: Huawei Technologies Co., Ltd.
- Inventors: Zhihu Luo; Zhe Jin
- Web page: https://patentgrep.com/patent/US11910336B2

## CPC

- H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- H04W 56/001: {Synchronization between nodes}
- H04L 5/005: {of common pilots, i.e. pilots destined for multiple users or terminals}
- H04L 5/0092: {Indication of how the channel is divided}
- H04L 27/2613: {Structure of the reference signals}
- H04W 72/0446: Resources in time domain, e.g. slots or frames
- H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA
- H04W 72/30: Resource management for broadcast services
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

A signal transmission method and a related device, to transmit a signal between a network device and a terminal device. The method in the embodiments includes: sending a first synchronization signal/broadcast channel block (SSB) to a first terminal device, where the first SSB includes a synchronization signal and a physical broadcast channel (PBCH), the synchronization signal and the PBCH use a frequency division multiplexing (FDM) manner in resource occupation, a quantity of orthogonal frequency division multiplexing (OFDM) symbols occupied by the synchronization signal is greater than 2, and a quantity of OFDM symbols occupied by the PBCH is greater than 3.

## Claims

### Claim 1

A signal transmission method, wherein the method comprises:
sending a first synchronization signal/physical broadcast channel block (SSB) to a first terminal device, wherein the first SSB comprises a synchronization signal and a physical broadcast channel (PBCH), the synchronization signal and the PBCH use a frequency division multiplexing (FDM) manner in resource occupation, a quantity of orthogonal frequency division multiplexing (OFDM) symbols occupied by the synchronization signal is greater than 2, and a quantity of OFDM symbols occupied by the PBCH is greater than 3; and
sending a second SSB to a second terminal device in a new radio (NR) system, wherein the second terminal device and the first terminal device are terminal devices in different communications systems.

### Claim 2 (depends on 1)

The method according to claim 1, wherein the synchronization signal comprises a primary synchronization signal (PSS) and a secondary synchronization signal (SSS), a quantity of OFDM symbols occupied by the PSS is greater than 1, and a quantity of OFDM symbols occupied by the SSS is greater than 1.

### Claim 3 (depends on 2)

The method according to claim 2, wherein that the synchronization signal and the PBCH use an FDM manner in resource occupation comprises:
the PSS and the PBCH use the FDM manner in resource occupation, and/or the SSS and the PBCH use the FDM manner in resource occupation.

### Claim 4 (depends on 2)

The method according to claim 2, wherein a frequency domain position of the PBCH is indicated by using the PSS and/or the SSS; or
a frequency domain position of the PBCH is obtained based on a frequency domain position of the PSS and/or a frequency domain position of the SSS.

### Claim 5

A signal transmission method, comprising:
receiving a first synchronization signal/broadcast channel block (SSB) sent by a network device, wherein the first SSB comprises a synchronization signal and a physical broadcast channel (PBCH), the synchronization signal and the PBCH use a frequency division multiplexing (FDM) manner in resource occupation, a quantity of orthogonal frequency division multiplexing (OFDM) symbols occupied by the synchronization signal is greater than 2, and a quantity of OFDM symbols occupied by the PBCH is greater than 3;
wherein the first SSB and a second SSB occupy half-frames at a same time domain position, the second SSB is an SSB sent by the network device to a second terminal device in a new radio (NR) system, and the second terminal device and the first terminal device are terminal devices in different communications systems.

### Claim 6 (depends on 5)

The method according to claim 5, wherein the synchronization signal comprises a primary synchronization signal (PSS) and a secondary synchronization signal (SSS), a quantity of OFDM symbols occupied by the PSS is greater than 1, and a quantity of OFDM symbols occupied by the SSS is greater than 1.

### Claim 7 (depends on 6)

The method according to claim 6, wherein that the synchronization signal and the PBCH use an FDM manner in resource occupation comprises:
the PSS and the PBCH use the FDM manner in resource occupation, and/or the SSS and the PBCH use the FDM manner in resource occupation.

### Claim 8 (depends on 6)

The method according to claim 6, wherein a frequency domain position of the PBCH is indicated by using the PSS and/or the SSS; or
a frequency domain position of the PBCH is obtained based on a frequency domain position of the PSS and/or a frequency domain position of the SSS.

### Claim 9 (depends on 5)

The method according to claim 5, wherein
that the first SSB and the second SSB occupy half-frames at a same time domain position comprises:
the second SSB and the first SSB occupy a same quantity of half-frames within a preset time length, and time domain positions of the occupied half-frames are the same; or
the second SSB and the first SSB occupy different quantities of half-frames within a preset time length, and time domain positions of some of the occupied different quantities of half-frames are the same.

### Claim 10

A network device, comprising:
a memory storing a program; and
at least one processor in communication with the memory, wherein the at least one processor is configured to execute the program to:
send a first synchronization signal/broadcast channel block (SSB) to a first terminal device, wherein the first SSB comprises a synchronization signal and a physical broadcast channel (PBCH), the synchronization signal and the PBCH use a frequency division multiplexing (FDM) manner in resource occupation, a quantity of orthogonal frequency division multiplexing (OFDM) symbols occupied by the synchronization signal is greater than 2, and a quantity of OFDM symbols occupied by the PBCH is greater than 3; and
send a second SSB to a second terminal device in a new radio (NR) system, wherein the second terminal device and the first terminal device are terminal devices in different communications systems.

### Claim 11 (depends on 10)

The network device according to claim 10, wherein the synchronization signal comprises a primary synchronization signal (PSS) and a secondary synchronization signal (SSS), a quantity of OFDM symbols occupied by the PSS is greater than 1, and a quantity of OFDM symbols occupied by the SSS is greater than 1.

### Claim 12 (depends on 11)

The network device according to claim 11, wherein that the synchronization signal and the PBCH use an FDM manner in resource occupation comprises:
the PSS and the PBCH use the FDM manner in resource occupation, and/or the SSS and the PBCH use the FDM manner in resource occupation.

### Claim 13 (depends on 11)

The network device according to claim 11, wherein a frequency domain position of the PBCH is indicated by using the PSS and/or the SSS; or
a frequency domain position of the PBCH is obtained based on a frequency domain position of the PSS and/or a frequency domain position of the SSS.

### Claim 14

A terminal device, comprising:
a memory storing a program; and
at least one processor in communication with the memory, wherein the at least one processor is configured to execute the program to:
receive a first synchronization signal/broadcast channel block (SSB) sent by a network device, wherein the first SSB comprises a synchronization signal and a physical broadcast channel (PBCH), the synchronization signal and the PBCH use a frequency division multiplexing (FDM) manner in resource occupation, a quantity of orthogonal frequency division multiplexing (OFDM) symbols occupied by the synchronization signal is greater than 2, and a quantity of OFDM symbols occupied by the PBCH is greater than 3;
wherein the first SSB and a second SSB occupy half-frames at a same time domain position, the second SSB is an SSB sent by the network device to a second terminal device in a new radio (NR) system, and the second terminal device and the first terminal device are terminal devices in different communications systems.

### Claim 15 (depends on 14)

The terminal device according to claim 14, wherein the synchronization signal comprises a primary synchronization signal (PSS) and a secondary synchronization signal (SSS), a quantity of orthogonal frequency division multiplexing OFDM symbols occupied by the PSS is greater than 1, and a quantity of OFDM symbols occupied by the SSS is greater than 1.

### Claim 16 (depends on 15)

The terminal device according to claim 15, wherein that the synchronization signal and the PBCH use an FDM manner in resource occupation comprises:
the PSS and the PBCH use the FDM manner in resource occupation, and/or the SSS and the PBCH use the FDM manner in resource occupation.

### Claim 17 (depends on 15)

The terminal device according to claim 15, wherein a frequency domain position of the PBCH is indicated by using the PSS and/or the SSS; or
a frequency domain position of the PBCH is obtained based on a frequency domain position of the PSS and/or a frequency domain position of the SSS.

### Claim 18 (depends on 14)

The terminal device according to claim 14, wherein
that the first SSB and the second SSB occupy half-frames at a same time domain position comprises:
the second SSB and the first SSB occupy a same quantity of half-frames within a preset time length, and time domain positions of the occupied half-frames are the same; or
the second SSB and the first SSB occupy different quantities of half-frames within a preset time length, and time domain positions of some of the occupied different quantities of half-frames are the same.
