# US 12,225,463 B2 · Method for reception mode switching and terminal

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- Number: US 12,225,463 B2
- Document ID: US12225463B2
- Status: Granted
- Kind: B2
- Application number: 17/360,309
- Filed: 2021-06-28
- Published: 2021-10-21
- Granted: 2025-02-11
- Earliest claimed: 2018-12-28
- Assignees: Vivo Mobile Communication Co., Ltd.
- Applicants: Vivo Mobile Communication Co., Ltd.
- Inventors: Dajie Jiang
- Web page: https://patentgrep.com/patent/US12225463B2

## CPC

- H04W 52/0229: {where the received signal is a wanted signal}
- H04L 1/0025: {Transmission of mode-switching indication}
- H04W 68/005: {Transmission of information for alerting of incoming communication}
- H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA
- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- H04W 76/28: Discontinuous transmission [DTX]; Discontinuous reception [DRX]
- H04W 76/27: Transitions between radio resource control [RRC] states
- H04W 88/06: adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals
- Y02D 30/70: in wireless communication networks
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE

## 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.

## Claims

### Claim 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.

### Claim 2 (depends on 1)

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.

### Claim 3 (depends on 2)

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).

### Claim 4 (depends on 2)

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).

### Claim 5 (depends on 2)

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.

### Claim 6 (depends on 1)

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 corresponding paging message, or the terminal does not receive the WUS that indicates the terminal to monitor the corresponding paging message, or the WUS received by the terminal indicates the terminal to monitor the corresponding paging message, but the paging message that is received 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 measurement quantity for the target signal by the terminal is greater than the preset threshold, determining that the reception mode switching event does not occur, and skipping adjusting the reception mode of the terminal; or
when the initial signal of a new radio unlicensed (NRU) system is not detected by the terminal, determining that the reception mode switching event does not occur, and skipping adjusting the reception mode of the terminal.

### Claim 7

A terminal, comprising a processor, a memory, and a program stored in the memory and capable of running on the processor, wherein when the program is executed by the processor, the processor is configured to implement following step:
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,
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 th 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.

### Claim 8 (depends on 7)

The terminal according to claim 7, the processor is configured to implement following step:
skipping switching the reception mode of the terminal when the reception mode switching event does not occur.

### Claim 9 (depends on 7)

The terminal according to claim 7, 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.

### Claim 10 (depends on 8)

The terminal according to claim 8, 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 (PDCCH) 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 corresponding paging message, or the terminal does not receive the WUS that indicates the terminal to monitor the corresponding paging message, or the WUS received by the terminal indicates the terminal to monitor the corresponding paging message, but the paging message that is received 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 measurement quantity for the target signal by the terminal is greater than the preset threshold, determining that the reception mode switching event does not occur, and skipping adjusting the reception mode of the terminal; or
when the initial signal of a new radio unlicensed (NRU) system is not detected by the terminal, determining that the reception mode switching event does not occur, and skipping adjusting the reception mode of the terminal.

### Claim 11 (depends on 9)

The terminal according to claim 9, 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).

### Claim 12 (depends on 9)

The terminal according to claim 9, 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).

### Claim 13 (depends on 9)

The terminal according to claim 9, 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.

### Claim 14

A non-transitory computer-readable storage medium, wherein a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, the processor is configured to implement following step:
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 when the computer program is executed by the processor, the processor is configured to implement:
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 when the computer program is executed by the processor, the processor is configured to implement:
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.

### Claim 15 (depends on 14)

The computer-readable storage medium according to claim 14, wherein when the computer program is executed by the processor, the processor is configured to further implement 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.