Method for performing communication using multiple usims and device therefor

Patent metadata

Field	Value
Publication number	US-2023080113-A1
Application number	US-202117796001-A
Country	US
Kind code	A1
Filing date	Jan 13, 2021
Priority date	Jan 31, 2020
Publication date	Mar 16, 2023
Grant date	—

Abstract

Provided are a method and a device for performing communication by a UE with multiple USIMs that are in operation at the same time. The method may include determining, in a state of concurrent registration to one or more networks associated with multiple USIMs, release of one or more networks in a connected state, transmitting assistance information for instructing release to a base station or a core network control plane entity, and monitoring a paging message based on the assistance information.

First claim

1 - 18 . (canceled)

19 . A method for performing communication using a plurality of universal subscriber identity modules (USIMs) by a user equipment (UE), the method comprising:
transmitting a multi-USIM UE capability to a base station or a core network control plane entity; transmitting assistance information to the base station or the core network control plane entity; and monitoring a paging message based on the assistance information.

20 . The method of claim 19 , further comprising, before transmitting the assistance information, receiving indication information for indicating whether to allow transmission of the assistance information from the base station or the core network control plane entity.

21 . The method of claim 19 , wherein the assistance information is included and transmitted in a UE assistance radio resource control (RRC) message or a service request message.

22 . The method of claim 19 , wherein the assistance information includes at least one of information for releasing a connected state for one or more networks and information for the base station or the core network control plane entity to restrict or allow transmission of the paging message for the UE.

23 . The method of claim 22 , wherein the information for restricting or allowing the transmission of the paging message includes at least one piece of information for instructing to paging only voice data, information for instructing to restrict all paging, and packet data unit (PDU) session identification information for allowing paging.

24 . The method of claim 19 , wherein the multi-USIM UE capability includes at least one of a connected state release capability, a paging restriction capability, a paging rejection capability, and a paging cause capability.

25 . A method for performing communication with a user equipment (UE) using a plurality of universal subscriber identity modules (USIMs) by a base station, the method comprising:
receiving a multi-USIM UE capability and assistance information from the UE or a core network control plane entity; and controlling transmission of a paging message for the UE based on the assistance information.

26 . The method of claim 25 , further comprising, before receiving the assistance information, transmitting indication information for indicating whether to allow transmission of the assistance information to the UE.

27 . The method of claim 25 , wherein the assistance information includes at least one of information for releasing a connected state for one or more networks and information for the base station or the core network control plane entity to restrict or allow transmission of the paging message for the UE.

28 . The method of claim 27 , wherein the information for restricting or allowing the transmission of the paging message includes at least one piece of information for instructing to paging only voice data, information for instructing to restrict all paging, and packet data unit (PDU) session identification information for allowing paging.

29 . A user equipment (UE) performing communication using a plurality of universal subscriber identity modules (USIMs), comprising:
a transmitter configured to transmit a multi-USIM UE capability to a base station or a core network control plane entity and transmitting assistance information to the base station or the core network control plane entity; and a controller configured to monitor a paging message based on the assistance information.

30 . The UE of claim 29 , further comprising a receiver configured to receive indication information for indicating whether to allow transmission of the assistance information from the base station or the core network control plane entity.

31 . The UE of claim 29 , wherein the assistance information is included and transmitted in a UE assistance radio resource control (RRC) message or a service request message.

32 . The UE of claim 29 , wherein the assistance information includes at least one of information for releasing a connected state for one or more networks and information for the base station or the core network control plane entity to restrict or allow transmission of the paging message for the UE.

33 . The UE of claim 32 , wherein the information for restricting or allowing the transmission of the paging message includes at least one piece of information for instructing to paging only voice data, information for instructing to restrict all paging, and packet data unit (PDU) session identification information for allowing paging.

34 . The UE of claim 29 , wherein the multi-USIM UE capability includes at least one of a connected state release capability, a paging restriction capability, a paging rejection capability, and a paging cause capability.

Assignees

• Kt Corp

Inventors

• Hong Sung-Pyo

Classifications

• H04W88/06

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

• H04W24/08

  Testing, {supervising or monitoring} using real traffic · CPC title

• H04W68/00

  User notification, e.g. alerting and paging, for incoming communication, change of service or the like · CPC title

• H04W68/02

  Arrangements for increasing efficiency of notification or paging channel · CPC title

• H04W76/34

  Selective release of ongoing connections · CPC title