# US 2021/0345268 A1 · Signal transmission method and related device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0345268 A1 - Document ID: US20210345268A1 - Status: Published application - Kind: A1 - Application number: 17/374,130 - Filed: 2021-07-13 - Published: 2021-11-04 - 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/US20210345268A1 ## 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 Embodiments of this application disclose 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 of this application 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. ### 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 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 3 (depends on 2) The method according to claim 2, wherein that the synchronization signal and the PBCH use a frequency division multiplexing 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 (depends on 1) The method according to claim 1, wherein the method further comprises: sending a second synchronization signal/physical broadcast channel block 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 6 A signal transmission method, wherein the method comprises: 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. ### Claim 7 (depends on 6) The method according to claim 6, 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 8 (depends on 7) The method according to claim 7, wherein that the synchronization signal and the PBCH use a frequency division multiplexing 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 9 (depends on 7) The method according to claim 7, 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 10 (depends on 6) The method according to claim 6, 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; and that the first SSB and the second SSB occupy half-frames at a same time domain position specifically 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 11 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. ### Claim 12 (depends on 11) The network device according to claim 11, 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 13 (depends on 12) The network device according to claim 12, wherein that the synchronization signal and the PBCH use a frequency division multiplexing 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 14 (depends on 12, 13) The network device according to claim 12 or 13, 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 15 (depends on 11) The network device according to claim 11, wherein the at least one processor is further configured to execute the program to: send a second synchronization signal/broadcast channel block 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 16 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. ### Claim 17 (depends on 16) The terminal device according to claim 16, 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 18 (depends on 17) The terminal device according to claim 17, wherein that the synchronization signal and the PBCH use a frequency division multiplexing 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 19 (depends on 17, 18) The terminal device according to claim 17 or 18, 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 20 (depends on 16) The terminal device according to claim 16, 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; and that the first SSB and the second SSB occupy half-frames at a same time domain position specifically 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.