Method and apparatus for determining cell in a wireless communication system
In an exemplary embodiment, the method performed by a User equipment (UE) in a wireless communication system is disclosed. The method comprises receiving a system information block 1 (SIB 1) which is broadcasted from a base station (BS) of a cell and identifying whether the cell is a Non-Public Network (NPN) cell based on whether information of a NPN is included in the SIB 1, wherein the NPN cell is a cell allowed to be accessed by the UE in the NPN. Also the method further comprises accessing the cell, when the cell is identified as the NPN cell.
1. A method performed by a user equipment (UE) in a wireless communication system, the method comprising:
receiving a master information block (MIB) message including cell barred information indicating whether a cell is barred or not barred;
receiving a system information block 1 (SIB 1) message; and
identifying whether the cell is barred, based on the SIB1 message, in case that the cell barred information indicates that the cell is not barred,
wherein in case that the SIB1 message does not include non-public network (NPN) information, the cell is identified as a barred cell, and
wherein in case that the SIB 1 message includes the NPN information, the cell is identified as a candidate cell for cell selection or cell reselection.
2. The method of claim 1 , wherein the NPN information includes at least one of a network identifier (NID), a public land mobile network (PLMN) identifier, or a closed access groups (CAG) identifier.
3. The method of claim 1 , further comprising:
performing cell selection or reselection on the cell in case that the NPN information including at least one of a NID, or a CAG identifier matches allowed NPN information for the UE.
4. The method of claim 1 , further comprising:
receiving range of physical cell identity (PCI) values reserved for use by CAG cells.
5. The method of claim 1 ,
wherein the MIB message further includes intra frequency reselection information, and
wherein the cell is barred and a frequency of the cell is barred in case that the intra frequency reselection information is set to not allowed and the cell barred information is set to barred.
6. The method of claim 1 ,
wherein the MIB message further includes intra frequency reselection information, and
wherein the cell is barred and a frequency of the cell is allowed in case that the intra frequency reselection information is set to allowed and the cell barred information is set to barred.
7. A user equipment (UE), in a wireless communication system, the UE comprising:
a transceiver; and
at least one processor coupled with the transceiver and configured to:
receive a master information block (MIB) message including cell barred information indicating whether a cell is barred or not barred,
receive a system information block 1 (SIB 1) message, and
identify whether the cell is barred, based on the SIB1 message, in case that the cell barred information indicates that the cell is not barred,
wherein in case that the SIB1 message does not include non-public network (NPN) information, the cell is identified as a barred cell, and
wherein in case that the SIB 1 message includes the NPN information, the cell is identified as a candidate cell for cell selection or cell reselection.
8. The UE of claim 7 , wherein the NPN information includes at least one of a network identifier (NID), a public land mobile network (PLMN) identifier, or a closed access groups (CAG) identifier.
9. The UE of claim 7 , the at least one processor is further configured to:
perform cell selection or reselection on the cell in case that the NPN information including at least one of a NID, or a CAG identifier matches allowed NPN information for the UE.
10. The UE of claim 7 , the at least one processor is further configured to:
receive range of physical cell identity (PCI) values reserved for use by CAG cells.
11. The UE of claim 7 ,
wherein the MIB message further includes intra frequency reselection information, and
wherein the cell is barred and a frequency of the cell is barred in case that the intra frequency reselection information is set to not allowed and the cell barred information is set to barred.
12. The UE of claim 7 ,
wherein the MIB message further includes intra frequency reselection information, and
wherein the cell is barred and a frequency of the cell is allowed in case that the intra frequency reselection information is set to allowed and the cell barred information is set to barred.
13. A method performed by a base station (BS) in a wireless communication system, the method comprising:
transmitting a master information block (MIB) message including cell barred information indicating whether a cell is barred or not barred; and
transmitting a system information block 1 (SIB 1) message,
wherein whether the cell is barred is identified based on the SIB1 message, in case that the cell barred information indicates that the cell is not barred,
wherein in case that the SIB1 message does not include non-public network (NPN) information, the cell is identified as a barred cell, and
wherein in case that the SIB 1 message includes the NPN information, the cell is identified as a candidate cell for cell selection or cell reselection.