# US 12,192,957 B2 · Wireless communication device, base station, and communication control method

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- Number: US 12,192,957 B2
- Document ID: US12192957B2
- Status: Granted
- Kind: B2
- Application number: 17/636,367
- Filed: 2020-09-09
- Published: 2022-09-22
- Granted: 2025-01-07
- Earliest claimed: 2019-09-20
- Assignees: Sony Group Corporation
- Applicants: Sony Group Corporation
- Inventors: Shinichiro Tsuda
- Web page: https://patentgrep.com/patent/US12192957B2

## CPC

- H04W 8/183: {Processing at user equipment or user record carrier}
- H04W 68/005: {Transmission of information for alerting of incoming communication}
- H04W 60/04: using triggered events
- H04W 68/12: Inter-network notification
- H04W 76/20: Manipulation of established connections
- H04W 48/12: using downlink control channel
- H04W 84/042: {Public Land Mobile systems, e.g. cellular systems}
- H04W 88/06: adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals
- 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 communication device (100) according to the present disclosure includes a controller (140). The controller (140) transmits a registration request message to a first management device (10A) that belongs to a first PLMN and that manages registration of a wireless communication device (100). The registration request message includes second PLMN_ID information. The second PLMN_ID information is also included in the first PLMN list information that is stored in the second subscriber identity module and that is stored in the first subscriber identity module. The controller (140) receives, from a first base station (200A) that belongs to the first PLMN, a first paging message related to a first paging that has been generated in the first PLMN. The controller (140) receives, from the first base station (200A), a second paging message related to a second paging that has been generated in a second PLMN.

## Claims

### Claim 1

A wireless communication device comprising:
a transceiver; and
control circuitry configured to:
transmit a registration request message to a first management device that belongs to a first public land mobile network (PLMN) and that manages registration of the wireless communication device,
the registration request message including second PLMN_ID information,
the second PLMN_ID information being also included in first PLMN list information that is stored in a second subscriber identity module and that is stored in a first subscriber identity module,
receive, from a first base station that belongs to the first PLMN, a first paging message related to a first paging that has been generated in the first PLMN, and
receive, from the first base station, a second paging message related to a second paging that has been generated in the second PLMN,
wherein the control circuitry:
specifies a first paging occasion in which the first paging message is arranged and a second paging occasion in which the second paging message is arranged, by using at least one of identification information of the wireless communication device and system information received from the first base station,
specifies a subframe number of the first paging occasion and a system frame number of a first paging frame including the first paging occasion, by using the identification information of the wireless communication device allocated from the first PLMN, and
specifies a subframe number of the second paging occasion, based on the subframe number of the first paging occasion.

### Claim 2 (depends on 1)

The wireless communication device according to claim 1,
wherein the control circuitry further specifies a system frame number of a second paging frame including the second paging occasion, by using the identification information of the wireless communication device allocated from the second PLMN.

### Claim 3 (depends on 1)

The wireless communication device according to claim 1, wherein
the control circuitry specifies the subframe number of the second paging occasion, by adding an offset value to the subframe number of the first paging occasion.

### Claim 4 (depends on 3)

The wireless communication device according to claim 3, wherein
the control circuitry specifies the subframe number of the second paging occasion, based on the offset value that has been preset.

### Claim 5 (depends on 3)

The wireless communication device according to claim 3, wherein
the control circuitry specifies a frame number of the second paging occasion, based on the offset value included in the system information reported from the first base station.

### Claim 6 (depends on 1)

The wireless communication device according to claim 1, wherein
the first paging occasion and the second paging occasion are identical to each other, and
the control circuitry receives either the first paging message or the second paging message via the first paging occasion.

### Claim 7 (depends on 6)

The wireless communication device according to claim 6, wherein
the control circuitry determines whether the paging message is the first paging message or the second paging message, based on the identification information of the wireless communication device included in the paging message that has been received via the first paging occasion.

### Claim 8 (depends on 7)

The wireless communication device according to claim 7, wherein
the control circuitry receives the paging message that the first base station transmits in accordance with priority information related to priorities of the first paging and the second paging.

### Claim 9 (depends on 8)

The wireless communication device according to claim 8, wherein
the control circuitry notifies the first base station of the priority information.

### Claim 10 (depends on 8)

The wireless communication device according to claim 8, wherein
when requesting the registration to the first management device, the control circuitry notifies of the priority information related to the priorities of the first paging and the second paging.

### Claim 11

A communication control method performed by a wireless communication device, the method comprising:
transmitting a registration request message to a first management device that belongs to a first public land mobile network (PLMN) and that manages registration of a wireless communication device,
the registration request message including second PLMN_ID information, and
the second PLMN_ID information being also included in first PLMN list information that is stored in a second subscriber identity module and that is stored in a first subscriber identity module;
receiving, from a first base station that belongs to the first PLMN, a first paging message related to a first paging that has been generated in the first PLMN; and
receiving, from the first base station, a second paging message related to a second paging that has been generated in the second PLMN,
wherein the method further comprises:
specifying a first paging occasion in which the first paging message is arranged and a second paging occasion in which the second paging message is arranged, by using at least one of identification information of the wireless communication device and system information received from the first base station,
specifying a subframe number of the first paging occasion and a system frame number of a first paging frame including the first paging occasion, by using the identification information of the wireless communication device allocated from the first PLMN, and
specifying a subframe number of the second paging occasion, based on the subframe number of the first paging occasion.

### Claim 12

A non-transitory computer product containing instructions for a communication control method performed by a wireless communication device, the method comprising:
transmitting a registration request message to a first management device that belongs to a first public land mobile network (PLMN) and that manages registration of a wireless communication device,
the registration request message including second PLMN_ID information, and
the second PLMN_ID information being also included in first PLMN list information that is stored in a second subscriber identity module and that is stored in a first subscriber identity module;
receiving, from a first base station that belongs to the first PLMN, a first paging message related to a first paging that has been generated in the first PLMN; and
receiving, from the first base station, a second paging message related to a second paging that has been generated in the second PLMN,
wherein the method further comprises:
specifying a first paging occasion in which the first paging message is arranged and a second paging occasion in which the second paging message is arranged, by using at least one of identification information of the wireless communication device and system information received from the first base station,
specifying a subframe number of the first paging occasion and a system frame number of a first paging frame including the first paging occasion, by using the identification information of the wireless communication device allocated from the first PLMN, and
specifying a subframe number of the second paging occasion, based on the subframe number of the first paging occasion.
