# US 12,120,503 B2 · Terminal, base station, and radio communication method for predetermined processing corresponding to conditional configuration

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- Number: US 12,120,503 B2
- Document ID: US12120503B2
- Status: Granted
- Kind: B2
- Application number: 17/631,430
- Filed: 2019-07-30
- Published: 2022-08-25
- Granted: 2024-10-15
- Earliest claimed: 2019-07-30
- Assignees: SoftBank Corp.
- Applicants: Softbank Corp.
- Inventors: Katsunari Uemura
- Web page: https://patentgrep.com/patent/US12120503B2

## CPC

- H04W 36/00837: {Determination of triggering parameters for hand-off}
- H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports}
- H04W 36/0058: {Transmission of hand-off measurement information, e.g. measurement reports}
- H04W 36/302: {due to low signal strength}
- H04W 36/362: {Conditional handover}
- H04W 72/04: Wireless resource allocation
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

There is provided a terminal including: a reception unit that receives, from a base station, a measurement configuration which associates information indicating an object cell on which given processing is to be performed, with a conditional configuration indicating a condition to initiate the given processing; a measurement unit that measures reception quality of a cell; and a control unit that initiates the given processing corresponding to the conditional configuration when the measured cell is included in the object cell and the reception quality of the measured cell fulfills the condition to initiate the given processing.

## Claims

### Claim 1

A terminal comprising:
a reception unit that receives, from a base station, information indicating an object cell on which given processing is to be performed, and a conditional configuration indicating a condition to initiate the given processing;
a measurement unit that measures a cell; and
a control unit that initiates the given processing corresponding to the conditional configuration when the measured cell is included in the object cell and a measurement result of the measured cell fulfills the condition to initiate the given processing,
wherein the given processing includes at least initiating a secondary cell group cell change procedure;
wherein the information indicating the object cell includes information indicating an object cell to be changed with respect to a secondary cell group;
wherein the conditional configuration includes a condition to initiate the secondary cell group cell change procedure; and
wherein when the measured cell is included in the object cell to be changed with respect to the secondary cell group and the measurement result of the measured cell fulfills the conditional configuration indicating the condition to initiate the secondary cell group cell change procedure, the control unit initiates processing for changing the measured cell in the secondary cell group.

### Claim 2 (depends on 1)

The terminal according to claim 1,
wherein the given processing includes at least initiating a conditional handover procedure and initiating a measurement report procedure;
wherein the information indicating the object cell includes information indicating an object cell regarding which conditional handover is to be performed, and information indicating an object cell regarding which a measurement report is to be performed; and
wherein the conditional configuration includes a condition to initiate the conditional handover procedure.

### Claim 3

A terminal comprising:
a reception unit that receives, from a base station, information indicating an object cell on which given processing is to be performed, and a conditional configuration indicating a condition to initiate the given processing;
a measurement unit that measures a cell; and
a control unit that initiates the given processing corresponding to the conditional configuration when the measured cell is included in the object cell and a measurement result of the measured cell fulfills the condition to initiate the given processing,
wherein the given processing includes at least initiating a secondary cell group addition procedure;
wherein the information indicating the object cell includes information indicating an object cell to be added to a secondary cell group:
wherein the conditional configuration includes a condition to initiate the secondary cell group addition procedure; and
wherein when the measured cell is included in the object cell to be added to the secondary cell group and the measurement result of the measured cell fulfills the conditional configuration indicating the condition to initiate the secondary cell group addition procedure, the control unit initiates processing for adding the measured cell in the secondary cell group.

### Claim 4 (depends on 3)

The terminal according to claim 3,
wherein the given processing includes at least initiating a conditional handover procedure and initiating a measurement report procedure;
wherein the information indicating the object cell includes information indicating an object cell regarding which conditional handover is to be performed, and information indicating an object cell regarding which a measurement report is to be performed; and
wherein the conditional configuration includes a condition to initiate the conditional handover procedure.

### Claim 5

A radio communication method performed by a terminal, comprising the steps of:
receiving, from a base station, information indicating an object cell on which given processing is to be performed, and a conditional configuration indicating a condition to initiate the given processing;
measuring a cell; and
initiating the given processing corresponding to the conditional configuration when the measured cell is included in the object cell and a measurement result of the measured cell fulfills the condition to initiate the given processing,
wherein the given processing includes at least initiating a secondary cell group cell change procedure;
wherein the information indicating the object cell includes information indicating an object cell to be changed with respect to a secondary cell group;
wherein the conditional configuration includes a condition to initiate the secondary cell group cell change procedure; and
wherein when the measured cell is included in the object cell to be changed with respect to the secondary cell group and the measurement result of the measured cell fulfills the conditional configuration indicating the condition to initiate the secondary cell group cell change procedure, the step of initiating the given processing initiates processing for changing the measured cell in the secondary cell group.

### Claim 6 (depends on 5)

The radio communication method according to claim 5,
wherein the given processing includes at least initiating a conditional handover procedure and initiating a measurement report procedure;
wherein the information indicating the object cell includes information indicating an object cell regarding which conditional handover is to be performed, and information indicating an object cell regarding which a measurement report is to be performed; and
wherein the conditional configuration includes a condition to initiate the conditional handover procedure.

### Claim 7

A radio communication method performed by a terminal, comprising the steps of:
receiving, from a base station, information indicating an object cell on which given processing is to be performed, and a conditional configuration indicating a condition to initiate the given processing;
measuring a cell; and
initiating the given processing corresponding to the conditional configuration when the measured cell is included in the object cell and a measurement result of the measured cell fulfills the condition to initiate the given processing,
wherein the given processing includes at least initiating a secondary cell group addition procedure;
wherein the information indicating the object cell includes information indicating an object cell to be added to a secondary cell group;
wherein the conditional configuration includes a condition to initiate the secondary cell group addition procedure; and
wherein when the measured cell is included in the object cell to be added to the secondary cell group and the measurement result of the measured cell fulfills the conditional configuration indicating the condition to initiate the secondary cell group addition procedure, the step of initiating the given processing initiates processing for adding the measured cell in the secondary cell group.

### Claim 8 (depends on 7)

The radio communication method according to claim 7,
wherein the given processing includes at least initiating a conditional handover procedure and initiating a measurement report procedure;
wherein the information indicating the object cell includes information indicating an object cell regarding which conditional handover is to be performed, and information indicating an object cell regarding which a measurement report is to be performed; and
wherein the conditional configuration includes a condition to initiate the conditional handover procedure.