Methods for enforcing limited mobility in mobile network
Systems, methods, and instrumentalities are disclosed for enforcing limited mobility in a mobile network. For example, a wireless transmit/receive unit (WTRU) may receive (e.g., receive from a network) a mapping of physical cell identifications (PCIs) to area identifications (AIDs). The WTRU may determine a first PCI associated with a first neighbor cell. The WTRU may determine, based on the first PCI and the PCIs to AIDs mapping, whether the WTRU is allowed to access the first neighbor cell. The WTRU may perform cell selection or reselection with the first neighbor cell as a cell selection or reselection candidate. The WTRU may perform cell selection or reselection based on the WTRU determining that the WTRU is allowed to access the first neighbor cell. The WTRU may determine that the WTRU is allowed to access the first neighbor cell based on the first PCI and the PCIs to AIDs mapping.
1. A wireless transmit/receive unit (WTRU), comprising:
a processor configured to:
send a first request message to a network, the first request message comprising an indication to establish a user plane;
receive a response message to the first request message, the response message comprising an indication that the WTRU is located in a non-allowed area and that the WTRU is not allowed to send a request to establish the user plane in the non-allowed area;
update an area configuration associated with a location of the WTRU based on the response message; and
send a second request message without the indication to establish the user plane in response to receiving the indication that the WTRU is located in the non-allowed area.
2. The WTRU of claim 1 , wherein the first request message comprises a registration request message, the registration request message comprising an active flag indicating a request to establish the user plane.
3. The WTRU of claim 1 , wherein the first request message comprises a service request message, the service request message comprising the indication to establish the user plane, and wherein the response message comprises a service reject message with the indication that the WTRU is located in the non-allowed area and that the WTRU is not allowed to send the request to establish the user plane in the non-allowed area.
4. The WTRU of claim 1 , wherein the processor is configured to:
receive a paging from the network;
send the first request message in response to the paging, the first request message comprising a service request; and
receive the response message, the response message comprising a service accept message with the indication that the WTRU is located in the non-allowed area and that the WTRU is not allowed to send the request to establish the user plane in the non-allowed area.
5. The WTRU of claim 1 , wherein the area configuration comprises one or more of a tracking area list and a non-allowed area list.
6. The WTRU of claim 5 , wherein to update the area configuration, the processor is configured to adjust one or more of the tracking area list and the non-allowed area list based on the location of the WTRU and the response message.
7. The WTRU of claim 1 , wherein the processor is configured to:
periodically send the second request message in response to receiving the indication that the WTRU is located in the non-allowed area; and
update the area configuration based on the response message.
8. The WTRU of claim 1 , wherein the response message further comprises an indication that the WTRU is located in a forbidden area.
9. A method comprising:
sending a first request message to a network, the first request message comprising an indication to establish a user plane;
receiving a response message to the first request message, the response message comprising an indication that a wireless transmit/receive (WTRU) is located in a non-allowed area and that the WTRU is not allowed to send a request to establish the user plane in the non-allowed area;
updating an area configuration associated with a location of the WTRU based on the response message; and
sending a second request message without the indication to establish the user plane in response to receiving the indication that the WTRU is located in the non-allowed area.
10. The method of claim 9 , wherein the first request message comprises a registration request message, the registration request message comprising an active flag indicating a request to establish the user plane.
11. The method of claim 9 , wherein the first request message comprises a service request message, the service request message comprising the indication to establish the user plane, and wherein the response message comprises a service reject message with the indication that the WTRU is located in the non-allowed area and that the WTRU is not allowed to send the request to establish the user plane in the non-allowed area.
12. The method of claim 9 , further comprising
receiving a paging from the network;
sending the first request message in response to the paging, the first request message comprising a service request; and
receiving the response message, the response message comprising a service accept message with the indication that the WTRU is located in the non-allowed area and that the WTRU is not allowed to send the request to establish the user plane in the non-allowed area.
13. The method of claim 9 , wherein the area configuration comprises one or more of a tracking area list and a non-allowed area list.
14. The method of claim 13 , the method comprises:
adjusting one or more of the tracking area list and the non-allowed area list based on the location of the WTRU and the response message.
15. The method of claim 9 , wherein the method comprises:
periodically sending the second request message in response to receiving the indication that the WTRU is located in the non-allowed area; and
updating the area configuration based on the response message.
16. The method of claim 9 , wherein the response message further comprises an indication that the WTRU is located in a forbidden area.