# US 2021/0243704 A1 · Paging synchronization method and apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0243704 A1 - Document ID: US20210243704A1 - Status: Published application - Kind: A1 - Application number: 17/049,840 - Filed: 2018-05-11 - Published: 2021-08-05 - Earliest claimed: 2018-05-11 - Assignees: Beijing Xiaomi Mobile Software Co., Ltd. - Applicants: Beijing Xiaomi Mobile Software Co., Ltd. - Inventors: Yang LIU - Web page: https://patentgrep.com/patent/US20210243704A1 ## CPC - H04W 56/001: {Synchronization between nodes} - H04W 68/02: Arrangements for increasing efficiency of notification or paging channel - H04W 56/0015: {one node acting as a reference for the others} - H04W 64/003: {locating network equipment} - H04W 68/005: {Transmission of information for alerting of incoming communication} - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract The present disclosure provides a paging synchronization method, applied to a base station, and including: when it is determined that transmission of a synchronous signal block (SSB) for synchronization of a terminal is disabled, configuring a reference signal for paging synchronization for a paging occasion (PO) to be transmitted to the terminal; and transmitting the reference signal to the terminal, to enable the terminal to perform paging synchronization based on the reference signal. Therefore, the present disclosure can ensure that the terminal has a higher paging reception performance, and improve the paging synchronization efficiency. ## Claims ### Claim 1 A paging synchronization method, applied to a base station, and comprising: in response to determining that transmission of a synchronous signal block (SSB) for synchronization of a terminal is disabled, configuring a reference signal for paging synchronization for a paging occasion (PO) to be transmitted to the terminal; and transmitting the reference signal to the terminal, to cause the terminal to perform paging synchronization based on the reference signal. ### Claim 2 (depends on 1) The paging synchronization method of claim 1 further comprising: determining one or more first transmission positions for transmitting an SSB in an SSB transmission cycle; and in response to determining that each of the first transmission positions does not meet an SSB transmission condition, determining that the transmission of the SSB for synchronization of the terminal is disabled. ### Claim 3 (depends on 2) The paging synchronization method of claim 2, further comprising: in response to determining that at least one of the first transmission positions meets the SSB transmission condition, transmitting the SSB for synchronization of the terminal at the first transmission position which meets the SSB transmission condition. ### Claim 4 (depends on 2) The paging synchronization method of claim 2, wherein the SSB transmission condition comprises: detecting that a channel is not occupied before the SSB is transmitted. ### Claim 5 (depends on 1) The paging synchronization method of claim 1, wherein the reference signal is a pseudo-random sequence. ### Claim 6 (depends on 1) The paging synchronization method of claim 1, wherein the transmitting the reference signal to the terminal comprising: determining a pre-designated position for transmitting the reference signal in the SSB transmission cycle; and transmitting the reference signal to the terminal at the pre-designated position, to cause the terminal to receive the reference signal at the pre-designated position. ### Claim 7 (depends on 6) The paging synchronization method of claim 6, further comprising: generating a paging synchronization signaling which comprises position information for indicating the pre-designated position; and transmitting the paging synchronization signaling comprising the position information to the terminal, to cause the terminal to determine the pre-designated position based on the position information in the paging synchronization signaling. ### Claim 8 (depends on 6) The paging synchronization method of claim 6, wherein the pre-designated position is located before a second transmission position for transmitting the PO to be transmitted to the terminal, or located within a designated range of the second transmission position. ### Claim 9 A paging synchronization method, applied to a terminal and comprising: in response to determining that a synchronous signal block (SSB) for synchronization of the terminal has not been received, receiving a reference signal for paging synchronization which is configured by a base station for a paging occasion (PO) to be transmitted to the terminal; and performing paging synchronization according to the reference signal. ### Claim 10 (depends on 9) The paging synchronization method according to claim 9, further comprising: determining one or more first reception positions for receiving an SSB in an SSB transmission cycle; and in response to that no SSB has been received at each of the first reception positions, determining that no SSB for synchronization of the terminal is received. ### Claim 11 (depends on 10) The paging synchronization method of claim 10, further comprising: in response to that an SSB is received at at least one of the first reception positions, performing paging synchronization according to the received SSB. ### Claim 12 (depends on 9) The paging synchronization method of claim 9, wherein the reference signal is a pseudo-random sequence. ### Claim 13 (depends on 9) The paging synchronization method of claim 9, wherein receiving the reference signal for paging synchronization which is configured by the base station for the PO to be transmitted, comprises: determining a pre-designated position for receiving the reference signal in the SSB transmission cycle; and receiving the reference signal at the pre-designated position. ### Claim 14 (depends on 13) The paging synchronization method of claim 13, wherein determining the pre-designated position for receiving the reference signal in the SSB transmission cycle, comprises: receiving a paging synchronization signaling transmitted by the base station, wherein the paging synchronization signaling comprises position information for indicating the pre-designated position; and determining the pre-designated position based on the position information in the paging synchronization signaling. ### Claim 15 (depends on 13) The paging synchronization method of claim 13, wherein the pre-designated position is located before a second reception position for receiving the PO to be transmitted to the terminal, or located within a designated range of the second reception position. ### Claim 16 (canceled) ### Claim 17 (canceled) ### Claim 18 A base station, comprising: a processor; and a memory storing processor-executable instructions; wherein the processor is configured to: in response to determining that transmission of a synchronous signal block (SSB) for synchronization of a terminal is disabled, configure a reference signal for paging synchronization for a paging occasion (PO) to be transmitted to the terminal; and transmitting the reference signal to the terminal, to cause the terminal to perform paging synchronization based on the reference signal. ### Claim 19 (canceled) ### Claim 20 (depends on 18) The base station of claim 18, wherein the processor is further configured to: determine one or more first transmission positions for transmitting an SSB in an SSB transmission cycle; and in response to determining that each of the first transmission positions does not meet an SSB transmission condition, determine that the transmission of the SSB for synchronization of the terminal is disabled. ### Claim 21 (depends on 20) The base station of claim 20, wherein the processor is further configured to: in response to determining that at least one of the first transmission positions meets the SSB transmission condition, transmit the SSB for synchronization of the terminal at the first transmission position which meets the SSB transmission condition. ### Claim 22 (depends on 20) The base station of claim 20, wherein the SSB transmission condition comprises: detecting that a channel is not occupied before the SSB is transmitted. ### Claim 23 (depends on 18) The base station of claim 18, wherein in transmitting the reference signal to the terminal, the processor is further configured to: determine a pre-designated position for transmitting the reference signal in the SSB transmission cycle; and transmit the reference signal to the terminal at the pre-designated position, to cause the terminal to receive the reference signal at the pre-designated position.