Method for reception mode switching and terminal

Patent metadata

Field	Value
Publication number	US-12225463-B2
Application number	US-202117360309-A
Country	US
Kind code	B2
Filing date	Jun 28, 2021
Priority date	Dec 28, 2018
Publication date	Feb 11, 2025
Grant date	Feb 11, 2025

Abstract

A method for reception mode switching and a terminal are provided. The method includes: switching a reception mode of the terminal from a first reception mode to a second reception mode if a reception mode switching event occurs wherein the first reception mode corresponds to a first quantity of receiving elements of the terminal, and the second reception mode corresponds to a second quantity of receiving elements of the terminal; wherein the receiving element is a receive antenna, a receive antenna port, a receiving port, a receiving channel, a receiving radio frequency channel, or a receive antenna panel.

First claim

What is claimed is:

1. A method for reception mode switching, applied to a terminal and comprising:
switching a reception mode of the terminal from a first reception mode to a second reception mode when a reception mode switching event occurs, or skipping switching the reception mode of the terminal when the reception mode switching event does not occur,
wherein the switching a reception mode of the terminal from a first reception mode to a second reception mode when a reception mode switching event occurs comprises:
when a default downlink bandwidth part (default Downlink BWP)-related timer of the terminal expires, determining that the reception mode switching event occurs, and switching the reception mode of the terminal from the first reception mode to the second reception mode; and
transmitting to a network side related information of the second reception mode that is switched to;
wherein skipping switching the reception mode of the terminal when the reception mode switching event does not occur comprises:
when the default downlink BWP-related timer of the terminal does not expire, determining that the reception mode switching event does not occur, and skipping adjusting the reception mode of the terminal,
wherein the first reception mode corresponds to a first quantity of receiving elements of the terminal, and the second reception mode corresponds to a second quantity of receiving elements of the terminal; wherein the receiving element is a receive antenna, a receive antenna port, a receiving port, a receiving channel, a receiving radio frequency channel, or a receive antenna panel.

2. The method according to claim 1 , wherein,
the switching a reception mode of the terminal from a first reception mode to a second reception mode when a reception mode switching event occurs further comprises at least one of the following:
when a wake-up signal (WUS) received by the terminal indicates the terminal to monitor a physical downlink control channel (PDCCH) within a connected state discontinuous reception (CDRX) onduration timer, determining that the reception mode switching event occurs, and switching the reception mode of the terminal from the first reception mode to the second reception mode;
when a connected state discontinuous reception-inactivity timer (CDRX-Inactivity timer) of the terminal is started, determining that the reception mode switching event occurs, and switching the reception mode of the terminal from the first reception mode to the second reception mode;
when the terminal receives, within a predetermined time, scheduling information carried by a target PDCCH, determining that the reception mode switching event occurs, and switching the reception mode of the terminal from the first reception mode to the second reception mode;
when the terminal receives a paging message and the paging message is related to the terminal, determining that the reception mode switching event occurs, and switching the reception mode of the terminal from the first reception mode to the second reception mode;
when a WUS received by the terminal indicates the terminal to monitor a corresponding paging message, determining that the reception mode switching event occurs, and switching the reception mode of the terminal from the first reception mode to the second reception mode;
when a WUS received by the terminal indicates the terminal to monitor a corresponding paging message and the paging message that is received is related to the terminal, determining that the reception mode switching event occurs;
when the terminal enters an idle state or an inactive state from an RRC connected state, determining that the reception mode switching event occurs, and switching the reception mode of the terminal from the first reception mode to the second reception mode;
when the terminal enters the RRC connected state from the idle state or the inactive state, determining that the reception mode switching event occurs, and switching the reception mode of the terminal from the first reception mode to the second reception mode;
when a measurement quantity for a target signal by the terminal is less than a preset threshold, determining that the reception mode switching event occurs, and switching the reception mode of the terminal from the first reception mode to the second reception mode; or
when an initial signal (initial signal) of a new radio unlicensed NRU system is detected by the terminal, determining that the reception mode switching event occurs, and switching the reception mode of the terminal from the first reception mode to the second reception mode.

3. The method according to claim 2 , wherein the measurement quantity comprises at least one of reference signal received power (RSRP), reference signal received quality (RSRQ), and signal to interference plus noise ratio (SINR).

4. The method according to claim 2 , wherein cyclic redundancy check (CRC) of the target PDCCH is scrambled by a cell radio network temporary identifier (C-RNTI) or a configuration scheduling radio network temporary identifier (CS-RNTI).

5. The method according to claim 2 , wherein that the paging message is related to the terminal comprises at least one of the following:
information transmitted on a PDCCH or PDSCH for the paging message comprises information related to an identifier ID of the terminal, the paging message indicates a system information update, the paging message indicates an earthquake and tsunami warning system (ETWS), and the paging message indicates a commercial mobile alarm system (CMAS); and
that the paging message is not related to the terminal excludes any one of the following:
the information transmitted on the PDCCH or PDSCH for the paging message comprises the information related to the ID of the terminal, the paging message indicates the system information update, the paging message indicates the ETWS, and the paging message indicates the CMAS.

6. The method according to claim 1 , wherein,
the skipping adjusting the reception mode of the terminal when the reception mode switching event does not occur comprises at least one of the following:
when a wake-up signal (WUS) received by the terminal indicates the terminal not to monitor a physical downlink control channel (DCCH) within a connected state discontinuous reception (CDRX) onduration timer, or the terminal does not receive the WUS that indicates the terminal to monitor the PDCCH within the CDRX onduration timer, determining that the reception mode switching event does not occur, and skipping adjusting the reception mode of the terminal;
when a connected state discontinuous reception-inactivity timer (CDRX-inactivity timer) of the terminal is not started, determining that the reception mode switching event does not occur, and skipping adjusting the reception mode of the terminal;
when the terminal does not receive, within the predetermined time, the scheduling information carried by the target PDCCH, determining that the reception mode switching event does not occur, and skipping adjusting the reception mode of the terminal,
when the terminal does not receive the paging message, or the terminal receives the paging message and the received paging message is not related to the terminal, determining that the reception mode switching event does not occur, and skipping adjusting the reception mode of the terminal;
when the WUS received by the terminal indicates the terminal not to monitor a corresponding paging message, or the terminal does not receive the WUS that indicates the terminal to monitor the corresponding paging message, determining that the reception mode switching event does not occur, and skipping adjusting the reception mode of the terminal;
when the WUS received by the terminal indicates the terminal not to monitor the correspon

Assignees

• Vivo Mobile Communication Co Ltd

Inventors

• Jiang Dajie

Classifications

• H04W72/23

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

• H04W72/0453

  Resources in frequency domain, e.g. a carrier in FDMA · CPC title

• H04W68/005

  Transmission of information for alerting of incoming communication · CPC title

• H04L1/0025

  Transmission of mode-switching indication · CPC title

• H04W76/28 Primary

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