Method and apparatus for terminal in RRC inactive to determine paging frame in mobile wireless communication system
View Patent ↗A method and apparatus for monitoring paging in a mobile communication system are provided. Method for monitoring paging includes receiving a first message including first paging cycle and second paging cycle from the AMF, receiving a second message including third paging cycle and fourth paging cycle from the base station, receiving a system information including an information related to the support of extended DRX, determining a reference DRX cycle, monitoring paging occasion based on the reference DRX cycle and receiving a paging.
1 . A method performed by a terminal, the method comprising:
receiving, from an Access and Mobility Management Function (AMF), a first message including a first discontinuous reception cycle and a second discontinuous reception cycle;
receiving, from a base station, a second message including a third discontinuous reception cycle and a fourth discontinuous reception cycle;
receiving a system information in a first cell;
determining a reference paging cycle;
determining a paging frame based on the reference paging cycle;
monitoring, in the first cell, a paging occasion in the paging frame;
receiving, from the base station, a third message; and
applying transparent mode radio link control configuration at a specific time point in case that:
a specific bit of the third message is set to one; and
the second discontinuous reception cycle is longer than a product of a specific integer and a default discontinuous reception cycle,
wherein:
the specific time point is determined based on a hyper frame number;
the specific integer is indicated in the system information; and
the default discontinuous reception cycle is indicated in the system information.
2 . The method of claim 1 , further comprising:
transmitting to the base station a message including information indicating whether the terminal supports extended discontinuous reception in an RRC_INACTIVE state.
3 . The method of claim 1 ,
wherein the reference paging cycle is determined based on:
the first discontinuous reception cycle and the third discontinuous reception cycle in case that a specific bit is not included in system information block 1 (SIB1); and
the first discontinuous reception cycle and the fourth discontinuous reception cycle in case that the specific bit is included in the SIB1.
4 . The method of claim 1 ,
wherein the specific bit indicates that extended discontinuous reception is allowed.
5 . A terminal in a wireless communication system, the terminal comprising:
a transceiver configured to transmit and receive signals; and
a controller configured to control the transceiver to:
receive, from an Access and Mobility Management Function (AMF), a first message including a first discontinuous reception cycle and a second discontinuous reception cycle;
receive, from a base station, a second message including a third discontinuous reception cycle and a fourth discontinuous reception cycle;
receive a system information in a first cell;
determine a reference paging cycle;
determine a paging frame based on the reference paging cycle;
monitor a paging occasion in the paging frame;
receive from the base station a third message; and
apply transparent mode radio link control configuration at a specific time point in case that:
a specific bit of the third message is set to one; and
the second discontinuous reception cycle is longer than a product of a specific integer and a default discontinuous reception cycle,
wherein:
the specific time point is determined based on a hyper frame number;
the specific integer is indicated in the system information; and
the default discontinuous reception cycle is indicated in the system information.