Signal processing method and apparatus

Patent metadata

Field	Value
Publication number	US-12588000-B2
Application number	US-202118033358-A
Country	US
Kind code	B2
Filing date	Oct 22, 2021
Priority date	Oct 23, 2020
Publication date	Mar 24, 2026
Grant date	Mar 24, 2026

Abstract

The present application provides a signal processing method and apparatus, where a network device configures a location of a paging indication signal for a terminal device in an idle state, after the network device transmits the paging indication signal to the terminal device according to the location of the paging indication signal, the terminal device may avoid consuming more energy caused by a relatively long distance between the location of the paging indication signal and a synchronization reference signal, and/or, the terminal device may avoid reducing the demodulation and decoding performance of the paging indication signal caused by a relatively long distance between the location of the paging indication signal and a channel time-frequency tracking reference signal.

First claim

The invention claimed is:

1 . A signal processing method, comprising:
configuring, by a network device, a location of a paging indication signal for a terminal device in an idle state; and transmitting, by the network device, the paging indication signal to the terminal device according to the location of the paging indication signal; wherein the location of the paging indication signal associates with any one of following information: information about a location of a paging signal, information about a location of a channel time-frequency tracking reference signal or information about a location of a synchronization reference signal; wherein the location of the paging indication signal and the information about the location of the paging signal meet a time interval between the location of the paging indication signal and a starting location of a paging cycle of the paging signal is a first time interval; wherein if there is one channel time-frequency tracking reference signal, the location of the paging indication signal and the information about the location of the channel time-frequency tracking reference signal meet a time interval between a transmission location of the paging indication signal and a transmission location of the channel time-frequency tracking reference signal is an eighth time interval; wherein if there are multiple synchronization reference signals, the location of the paging indication signal and the information about the location of the synchronization reference signal meet a time interval between a transmission location of the paging indication signal and a reference signal with a latest transmission location among the multiple synchronization reference signals is an eleventh time interval.

2 . The method according to claim 1 , wherein the location of the paging indication signal and the information about the location of the paging signal further meet any one of following:
a time interval between the location of the paging indication signal and a location of a starting paging frame of the paging signal is a second time interval; or a time interval between the location of the paging indication signal and a starting location of a paging frame of the paging signal is a third time interval; or a time interval between the location of the paging indication signal and a starting paging location of a paging frame of the paging signal is a fourth time interval; or a time interval between the location of the paging indication signal and a paging location of a paging frame of the paging signal is a fifth time interval; or a time interval between the location of the paging indication signal and a monitoring occasion (MO) of a first paging physical layer downlink control channel (PDCCH) at a starting paging location of a paging frame of the paging signal is a sixth time interval; or a time interval between the location of the paging indication signal and a MO of a first paging PDCCH at a paging location of a paging frame of the paging signal is a seventh time interval.

3 . The method according to claim 1 , wherein the location of the paging indication signal and the information about the location of the channel time-frequency tracking reference signal further meet any one of following:
a transmission of the paging indication signal is no earlier than the channel time-frequency tracking reference signal; or a transmission location of the paging indication signal is later than a transmission location of the channel time-frequency tracking reference signal in time domain; or a transmission location of the paging indication signal is within a first time window starting from a transmission location of the channel time-frequency tracking reference signal.

4 . The method according to claim 1 , wherein if there are multiple channel time-frequency tracking reference signals; the location of the paging indication signal and information about locations of the channel time-frequency tracking reference signals meet any one of following:
a transmission location of the paging indication signal is no earlier than a reference signal with a latest transmission location among the multiple channel time-frequency tracking reference signals; or a transmission location of the paging indication signal is later than transmission locations of the channel time-frequency tracking reference signals in time domain; or a time interval between a transmission location of the paging indication signal and a reference signal with a latest transmission location among the multiple channel time-frequency tracking reference signals is a ninth time interval; or a transmission location of the paging indication signal is within a second time window starting from a transmission location of a starting reference signal among the multiple channel time-frequency tracking reference signals; or a transmission location of the paging indication signal is within a third time window starting from a transmission location of a last reference signal among the multiple channel time-frequency tracking reference signals.

5 . The method according to claim 1 , wherein if there is one synchronization reference signal, the location of the paging indication signal and the information about the location of the synchronization reference signal meet any one of following:
a transmission of the paging indication signal is no earlier than the synchronization reference signal; or a transmission location of the paging indication signal is later than a transmission location of the synchronization reference signal in time domain; or a time interval between a transmission location of the paging indication signal and a transmission location of the synchronization reference signal is a tenth time interval.

6 . The method according to claim 1 , wherein if there are multiple synchronization reference signals, the location of the paging indication signal and the information about the location of the synchronization reference signal further meet any one of following:
a transmission of the paging indication signal is no earlier than a reference signal with a latest transmission location among the multiple synchronization reference signals; or a transmission of the paging indication signal is no earlier than a reference signal with an earliest transmission location among the multiple synchronization reference signals; or a transmission location of the paging indication signal is within a fourth time window starting from a transmission location of a starting reference signal among the multiple synchronization reference signals; or a transmission location of the paging indication signal is within a fifth time window starting from a transmission location of a last reference signal among the multiple synchronization reference signals.

7 . The method according to claim 1 , wherein the paging indication signal is configured to indicate monitoring of a paging PDCCH of a paging frame in a paging cycle; or
multiple paging indication signals are configured to indicate monitoring of paging PDCCHs at multiple different paging locations and/or with different paging contents, wherein locations of the multiple paging indication signals in time domain are no later than a starting location of the paging frame, and each of the paging indication signals indicates monitoring of a paging PDCCH at a single paging location, and each of the paging indication signals has a different time interval with respect to the paging location.

8 . The method according to claim 1 , wherein the method further comprises:
transmitting, by the network device, a synchronization reference signal and/or a channel time-frequency tracking reference signal to the terminal device.

9 . The method according to claim 8 , wherein the pagin

Assignees

• Datang mobile communications equipment co ltd

Inventors

• Yang Meiying
• Wang Jiaqing
• Cheng Fang-Chen

Classifications

• H04W68/005

  Transmission of information for alerting of incoming communication · CPC title

• H04W56/001

  Synchronization between nodes · CPC title

• H04W52/0212

  managed by the network, e.g. network or access point is leader and terminal is follower · CPC title

• H04W76/28

  Discontinuous transmission [DTX]; Discontinuous reception [DRX] · CPC title

• H04W72/23 Primary

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title