Method and UE for handling mobility procedure for UE
The present disclosure relates to a pre-5 th -Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4 th -Generation (4G) communication system such as Long Term Evolution (LTE). Embodiments herein disclose a method performed by a terminal in a mobile communication system. The method includes performing a registration procedure on a first standalone non-public network (SNPN), selecting a second SNPN based on a predetermined condition, and transmitting, to a network entity, a registration request message on the second SNPN for an initial registration, in case that the second SNPN differs from the first SNPN.
1. A method performed by a terminal in a mobile communication system, the method comprising:
performing a registration procedure on a first standalone non-public network (SNPN);
selecting a second SNPN based on a list of subscriber data including an SNPN identity of the second SNPN; and
in case that the second SNPN differs from the first SNPN, resetting a registration attempt counter and transmitting, to a network entity, a registration request message for an initial registration on the second SNPN,
wherein the registration request message for the initial registration on the second SNPN includes information on a registration type, and
wherein the information on the registration type indicates the initial registration, in case that the second SNPN differs from the first SNPN.
2. The method of claim 1 , wherein the network entity is an access and mobility management function (AMF).
3. The method of claim 1 , wherein the second SNPN is selected in case that the terminal has lost a coverage of the first SNPN and the terminal recovers from a lack of coverage.
4. The method of claim 1 , wherein the second SNPN is selected using an automatic SNPN selection mode procedure.
5. The method of claim 1 , wherein the second SNPN is selected using a manual SNPN selection mode procedure.
6. The method of claim 1 , wherein the terminal is configured with the list of subscriber data including the SNPN identity of the second SNPN.
7. The method of claim 1 , further comprising performing a de-registration procedure on the first SNPN, in case that the second SNPN differs from the first SNPN.
8. A terminal in a mobile communication system, the terminal comprising:
a transceiver; and
a controller operably connected to the transceiver, the controller configured to:
perform a registration procedure on a first standalone non-public network (SNPN),
select a second SNPN based on a list of subscriber data including an SNPN identity of the second SNPN, and
in case that the second SNPN differs from the first SNPN, reset a registration attempt counter and transmit, to a network entity via the transceiver, a registration request message for an initial registration on the second SNPN,
wherein the registration request message for the initial registration on the second SNPN includes information on a registration type, and
wherein the information on the registration type indicates the initial registration, in case that the second SNPN differs from the first SNPN.
9. The terminal of claim 8 , wherein the network entity is an access and mobility management function (AMF).
10. The terminal of claim 8 , wherein the second SNPN is selected in case that the terminal has lost a coverage of the first SNPN and the terminal recovers from a lack of coverage.
11. The terminal of claim 8 , wherein the second SNPN is selected using an automatic SNPN selection mode procedure.
12. The terminal of claim 8 , wherein the second SNPN is selected using a manual SNPN selection mode procedure.
13. The terminal of claim 8 , wherein the terminal is configured with the list of subscriber data including the SNPN identity of the second SNPN.
14. The terminal of claim 8 , wherein the controller is further configured to perform a de-registration procedure on the first SNPN, in case that the second SNPN differs from the first SNPN.