Terminal apparatus, core network apparatus, control method, and computer-readable storage medium for executing paging control with respect to terminal apparatus including plurality of subscriber identity modules

Patent metadata

Field	Value
Publication number	US-2022408404-A1
Application number	US-202217895325-A
Country	US
Kind code	A1
Filing date	Aug 25, 2022
Priority date	Mar 10, 2020
Publication date	Dec 22, 2022
Grant date	—

Abstract

A terminal apparatus judges whether or not a first timing of paging relating to a first base station apparatus and a second timing of paging relating to a second base station apparatus coincide with each other, transmits, if it is judged that the first and second timings coincide with each other, a predetermined notification regarding a timing of paging to at least one of the first and second base station apparatuses, and changes, on the basis that the predetermined notification has been transmitted, the timing of paging of the base station apparatus to which the predetermined notification has been transmitted.

First claim

What is claimed is:

1 . A terminal apparatus comprising:
a notifying unit configured to transmit a predetermined notification regarding a paging frame or paging occasion to a core network apparatus to which a base station apparatus is connected; a receiving unit configured to receive, as a response from the core network apparatus to the predetermined notification, an offset value to be used by the terminal apparatus to calculate a paging frame or paging occasion; and a calculating unit configured to calculate a paging frame or paging occasion using the received offset value.

2 . The terminal apparatus according to claim 1 , further comprising a control unit configured to perform control so that reception of paging is started using the paging frame or paging occasion calculated by the calculating unit.

3 . The terminal apparatus according to claim 1 , wherein
the terminal apparatus further comprises a first Subscriber Identity Module (USIM) and a second USIM, and the calculating unit calculates a paging frame or paging occasion corresponding to one of the first USIM and the second USIM in a case in which a paging frame or paging occasion corresponding to the first USIM and a paging frame or paging occasion corresponding to the second USIM coincide with each other.

4 . The terminal apparatus according to claim 3 , wherein the notifying unit transmits the predetermined notification in the case in which the paging frame or paging occasion corresponding to the first USIM and the paging frame or paging occasion corresponding to the second USIM coincide with each other.

5 . A core network apparatus to which a base station apparatus is connected, the core network apparatus comprising:
a receiving unit configured to receive a predetermined notification regarding a paging frame or paging occasion from a terminal apparatus; a transmitting unit configured to transmit, as a response to the predetermined notification, an offset value to be used by the terminal apparatus to calculate a paging frame or paging occasion; and a notifying unit configured to, when the predetermined notification has been received, notify the base station apparatus of information regarding a change in a paging frame or paging occasion for the terminal apparatus.

6 . The core network apparatus according to claim 5 , wherein
the terminal apparatus includes a first Subscriber Identity Module (USIM) and a second USIM, and the offset value is used to calculate a paging frame or paging occasion corresponding to one of the first USIM and the second USIM in a case in which a paging frame or paging occasion corresponding to the first USIM and a paging frame or paging occasion corresponding to the second USIM coincide with each other.

7 . The core network apparatus according to claim 6 , wherein the predetermined notification is transmitted from the terminal apparatus in the case in which the paging frame or paging occasion corresponding to the first USIM and the paging frame or paging occasion corresponding to the second USIM coincide with each other.

8 . A control method to be executed by a terminal apparatus, the control method comprising:
transmitting a predetermined notification regarding a paging frame or paging occasion to a core network apparatus to which a base station apparatus is connected; receiving, as a response from the core network apparatus to the predetermined notification, an offset value to be used by the terminal apparatus to calculate a paging frame or paging occasion; and calculating a paging frame or paging occasion using the received offset value.

9 . A control method to be executed by a core network apparatus to which a base station apparatus is connected, the control method comprising:
receiving a predetermined notification regarding a paging frame or paging occasion from a terminal apparatus; transmitting, as a response to the predetermined notification, an offset value to be used by the terminal apparatus to calculate a paging frame or paging occasion; and when the predetermined notification has been received, notifying the base station apparatus of information regarding a change in a paging frame or paging occasion for the terminal apparatus.

10 . A non-transitory computer-readable storage medium that stores a program for causing a computer provided in a terminal apparatus to:
transmit a predetermined notification regarding a paging frame or paging occasion to a core network apparatus to which a base station apparatus is connected; receive, as a response from the core network apparatus to the predetermined notification, an offset value to be used by the terminal apparatus to calculate a paging frame or paging occasion; and calculate a paging frame or paging occasion using the received offset value.

11 . A non-transitory computer-readable storage medium that stores a program for causing a computer provided in a core network apparatus to which a base station apparatus is connected to:
receive a predetermined notification regarding a paging frame or paging occasion from a terminal apparatus; transmit, as a response to the predetermined notification, an offset value to be used by the terminal apparatus to calculate a paging frame or paging occasion; and when the predetermined notification has been received, notify the base station apparatus of information regarding a change in a paging frame or paging occasion for the terminal apparatus.

Assignees

• Kddi Corp

Inventors

• Takeda Hiroki
• Watanabe Shingo
• Ootani Jun

Classifications

• H04W68/005 Primary

  Transmission of information for alerting of incoming communication · CPC title

• H04W8/183 Primary

  Processing at user equipment or user record carrier · CPC title

• H04W56/003

  Arrangements to increase tolerance to errors in transmission or reception timing · CPC title

• H04W88/06

  adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals · CPC title