Method and device for supporting UE supporting multiple sims in wireless communication system
The present disclosure relates to a 5G or pre-5G communication system to be provided for supporting a higher data transmission rate beyond a 4G communication system such as LTE. The present disclosure proposes a communication method of a UE supporting multiple subscriber identity modules (SIMs) (multi-SIM UE), the communication method comprising the steps of: a paging message from a second base station being received by a UE which is in a RRC connected state with a first base station associated with a first SIM of the UE, and which is in a RRC inactive state with the second base station associated with a second SIM of the UE; deciding not to respond to the paging message; and initiating a procedure of transmitting a busy indication to the second base station.
1 . A method for communication by a user equipment (UE) supporting a plurality of subscriber identity modules (SIMs), the method comprising:
receiving, from a first base station related to a first SIM of the UE, a radio resource control (RRC) message including information on a prohibit timer;
transmitting, to the first base station, a first UE assistance information message including information associated with gap preference;
starting the prohibit timer using the information on the prohibit timer in response to transmitting the first UE assistance information including the information associated with gap preference; and
based on the prohibit timer running, determining not to transmit a second UE assistance information message including the information associated with gap preference.
2 . The method of claim 1 , wherein the information associated with gap preference includes a gap offset and a gap length related to the gap preference.
3 . The method of claim 1 , further comprising:
receiving, from a second base station related to a second SIM, a message for paging when the UE is in an RRC inactive state with the second base station;
determining not to respond to the paging; and
transmitting, to the second base station, a message including information indicating not to respond to the paging.
4 . The method of claim 1 , further comprising:
receiving, from the first base station, an RRC reconfiguration message including information for setup or release of a gap configuration related to multi-SIM operation of the UE.
5 . The method of claim 4 , further comprising:
in case that the information for setup or release of the gap configuration related to multi-SIM operation of the UE is set to setup, releasing previously set up multi-SIM operation related gap configuration; and
setting up the gap configuration related to multi-SIM operation of the UE based on the RRC reconfiguration message including a gap offset value.
6 . The method of claim 5 , wherein the gap configuration related to multi-SIM operation of the UE satisfies following conditions:
system frame number (SFN) mod T =FLOOR(Offset/10);
subframe=Offset mod 10; and
with T=GapRepetition/10, and
wherein the SFN indicates a system frame number of an initial gap, the subframe indicates a subframe number of the initial gap, the GapRepetition indicates a repetition period for multi-SIM operation related gap.
7 . The method of claim 4 , further comprising:
in case that the information for setup or release of the gap configuration related to multi-SIM operation of the UE is set to release, releasing the gap configuration related to multi-SIM operation of the UE.
8 . A user equipment (UE) supporting a plurality of subscriber identity modules (SIMs), the UE comprising:
a transceiver; and
at least one processor coupled to the transceiver, wherein the at least one processor is configured to:
receive, from a first base station related to a first SIM of the UE, a radio resource control (RRC) message including information on a prohibit timer;
transmit, to the first base station, a first UE assistance information message including information about associated with gap preference;
start a timer for a gap request using the information on the prohibit timer for the gap request in response to transmitting the first UE assistance information including the information associated with gap preference; and
based on the timer for the gap request running, determining not to transmit a second UE assistance information message including the information associated with gap preference.
9 . The UE of claim 8 , wherein the information associated with gap preference includes a gap offset and a gap length related to the gap preference.
10 . The UE of claim 8 , wherein the at least one processor is further configured to:
receive, from a second base station related to a second SIM, a message for paging when the UE is in an RRC inactive state with the second base station;
determine not to respond to the paging; and
transmit, to the second base station, a message including information indicating not to respond to the paging.
11 . The UE of claim 8 , wherein the at least one processor is further configured to:
receive, from the first base station, an RRC reconfiguration message including information for setup or release of a gap configuration related to multi-SIM operation of the UE.
12 . The UE of claim 11 , wherein the at least one processor is further configured to:
in case that the information for setup or release of the gap configuration related to multi-SIM operation of the UE is set to setup, release previously set up multi-SIM operation related gap configuration; and
set up the gap configuration related to multi-SIM operation of the UE based on the RRC reconfiguration message including a gap offset value.
13 . The UE of claim 12 , wherein the gap configuration related to multi-SIM operation of the UE satisfies following conditions:
system frame number (SFN) mod T =FLOOR (Offset/10);
subframe=Offset mod 10; and
with T=GapRepetition/10, and
wherein the SFN indicates a system frame number of an initial gap, the subframe indicates a subframe number of the initial gap, the GapRepetition indicates a repetition period for multi-SIM operation related gap.
14 . The UE of claim 11 , wherein the at least one processor is further configured to:
in case that the information for setup or release of the gap configuration related to multi-SIM operation of the UE is set to release, release the gap configuration related to multi-SIM operation of the UE.