# US 12,604,287 B2 · Wireless modem and operation method thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,604,287 B2 - Document ID: US12604287B2 - Status: Granted - Kind: B2 - Application number: 18/450,446 - Filed: 2023-08-16 - Published: 2024-02-22 - Granted: 2026-04-14 - Earliest claimed: 2022-08-19 - Assignees: Mediatek Inc. - Applicants: MEDIATEK Inc. - Inventors: Nien-En Wu; Yu-Hsin Liu; Shang-Lin Tsai; Lai-En Fan; Ming-Ying Tu; Chen-Wei Hsu - Web page: https://patentgrep.com/patent/US12604287B2 ## CPC - H04W 56/003: {Arrangements to increase tolerance to errors in transmission or reception timing} - H04W 68/00: User notification, e.g. alerting and paging, for incoming communication, change of service or the like - H04W 88/02: Terminal devices - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A wireless modem and an operation method thereof are provided. The operation method of the wireless modem includes the following steps. A communication signal is buffered in a storage unit when the communication signal is received. The communication signal is a paging early indicator (PEI) signal, a paging signal or a radio resource management (RRM) signal. A synchronization procedure is performed, when a reference signal is received. The communication signal is fetched from the storage unit, when the synchronization procedure is finished. A compensation procedure is performed on the communication signal. The communication signal which is compensated is demodulated. ## Claims ### Claim 1 An operation method of a wireless modem, comprising: buffering a communication signal in a storage unit when the communication signal is received, wherein the communication signal is a paging early indicator (PEI) signal, a paging signal or a radio resource management (RRM) signal; performing a synchronization procedure when a reference signal is received; fetching the communication signal from the storage unit when the synchronization procedure is finished; performing a compensation procedure on the communication signal; and demodulating the communication signal which is compensated, wherein a duration for receiving the communication signal is overlapped with a duration for receiving the reference signal in an identical time slot. ### Claim 2 (depends on 1) The operation method of the wireless modem according to claim 1, wherein the step of fetching the communication signal from the storage unit is performed when the synchronization procedure is finished. ### Claim 3 (depends on 1) The operation method of the wireless modem according to claim 1, wherein the step of buffering the communication signal is performed during the step of performing the synchronization procedure. ### Claim 4 (depends on 1) The operation method of the wireless modem according to claim 1, wherein the communication signal is received after the reference signal. ### Claim 5 (depends on 1) The operation method of the wireless modem according to claim 1, wherein the communication signal is received before the reference signal. ### Claim 6 (depends on 1) The operation method of the wireless modem according to claim 1, wherein the communication signal is received after the reference signal in an identical time slot. ### Claim 7 (depends on 1) The operation method of the wireless modem according to claim 1, wherein the communication signal is received before the reference signal in an identical time slot. ### Claim 8 (depends on 1) The operation method of the wireless modem according to claim 1, further comprising: fetching an inside reference signal in the communication signal from the storage unit; and performing a synchronization enhancement procedure based on the inside reference signal in the communication signal. ### Claim 9 (depends on 1) The operation method of the wireless modem according to claim 1, further comprising: buffering the reference signal in the storage unit. ### Claim 10 A wireless modem, comprising: a receiving unit, configured to receive a communication signal and a reference signal, wherein the communication signal is a paging early indicator (PEI) signal, a paging signal or a radio resource management (RRM) signal; a storage unit, configured to buffer the communication signal when the communication signal is received; a synchronization unit, configured to perform a synchronization procedure when the reference signal is received; a compensation unit, configured to fetch the communication signal from the storage unit when the synchronization procedure is finished, and perform a compensation procedure on the communication signal; and a demodulation unit, configured to demodulate the communication signal which is compensated, wherein a duration for receiving the communication signal is overlapped with a duration for receiving the reference signal in an identical time slot. ### Claim 11 (depends on 10) The wireless modem according to claim 10, wherein the compensation unit fetches the communication signal from the storage unit when the synchronization unit finishes the synchronization procedure. ### Claim 12 (depends on 10) The wireless modem according to claim 10, wherein the communication signal is buffered to the storage unit during a duration for performing the synchronization procedure. ### Claim 13 (depends on 10) The wireless modem according to claim 10, wherein the receiving unit receives the communication signal after the reference signal. ### Claim 14 (depends on 10) The wireless modem according to claim 10, wherein the receiving unit receives the communication signal before the reference signal. ### Claim 15 (depends on 10) The wireless modem according to claim 10, wherein the receiving unit receives the communication signal after the reference signal in an identical time slot. ### Claim 16 (depends on 10) The wireless modem according to claim 10, wherein the receiving unit receives the communication signal before the reference signal in an identical time slot. ### Claim 17 (depends on 10) The wireless modem according to claim 10, wherein the synchronization unit is further configured to fetch an inside reference signal in the communication signal from the storage unit and perform a synchronization enhancement procedure based on the inside reference signal in the communication signal. ### Claim 18 (depends on 10) The wireless modem according to claim 10, wherein the storage unit is further configured to buffer the reference signal.