Flexible zone-based registration area tracking in a wireless network

1. A method comprising:

sending, by a wireless device to an access and mobility management function (AMF) via an access network, a first registration request message comprising a first geographical coordinate of a first geographical location;

receiving, from the AMF, a registration accept message comprising a radius value;

moving by the wireless device to a second geographical location;

determining that a distance between the first geographical coordinate and a second geographical coordinate of the second geographical location is larger than the radius value; and

sending, in response to the determining, a second registration request message comprising the second geographical coordinate.

2. The method of claim 1 , wherein:

a first zone is a circle centered by the first geographical coordinate with the radius value; and

the determining is further based on that the wireless device left the first zone.

3. The method of claim 1 , wherein the first registration request message further comprises at least one of:

an average speed of the wireless device;

a mobility pattern of the wireless device;

a direction of a movement of the wireless device;

an indication indicating a privacy request of the wireless device; or

a time stamp of the first geographical coordinate.

4. The method of claim 3 , wherein the mobility pattern comprises at least one of:

an indication indicating stationary;

an indication indicating local; or

an indication indicating global.

5. The method of claim 3 , wherein the AMF does not expose the first and second geographical coordinates of the wireless device to a third party in response to the indication indicating the privacy request.

6. The method of claim 1 , further comprising:

receiving a second registration accept message in response to sending the second registration request message, wherein the second registration accept message comprises second geographical zone information.

7. The method of claim 6 , wherein the second geographical zone information comprises:

a length of a zone; and

a width of the zone.

8. The method of claim 7 , wherein a second zone is a rectangular shape centered by the second geographical coordinate with the length and the width.

9. The method of claim 1 , wherein the access network is a moving access network.

10. The method of claim 1 , wherein the access network comprises at least one of:

a low earth orbit (LEO) satellite;

a medium earth orbit (MEO) satellite;

a geostationary earth orbit (GEO) satellite;

an unmanned aircraft system (UAS) platform; or

a high elliptical orbit (HEO) platform.

11. A wireless device, comprising:

one or more processors; and

memory storing instructions that, when executed by the one or more processors, cause the wireless device to:

send, to an access and mobility management function (AMF) via an access network, a first registration request message comprising a first geographical coordinate of a first geographical location;

receive, from the AMF, a registration access message comprising a radius value;

move to a second geographical location;

determine, a distance between the first geographical coordinate and a second geographical coordinate of the second geographical location is larger than the radius value; and

send, in response to the determination, a second registration request message comprising the second geographical coordinate.

12. The wireless device of claim 11 , wherein:

a first zone is a circle centered by the first geographical coordinate with the radius value; and

the determining is further based on that the wireless device left the first zone.

13. The wireless device of claim 11 , wherein the first registration request message further comprises at least one of:

an average speed of the wireless device;

a mobility pattern of the wireless device;

a direction of a movement of the wireless device;

an indication indicating a privacy request of the wireless device; or

a time stamp of the first geographical coordinate.

14. The wireless device of claim 13 , wherein the mobility pattern comprises at least one of:

an indication indicating stationary;

an indication indicating local; or

an indication indicating global.

15. The wireless device of claim 13 , wherein the AMF does not expose the first and second geographical coordinates of the wireless device to 3'rd party in response to the indication indicating the privacy request.

16. The wireless device of claim 11 , wherein the instructions, when executed by the one or more processors, further cause the wireless device to:

receive a second registration access message in response to sending the second registration request message, wherein the second registration access message comprises a second geographical zone information.

17. The wireless device of claim 16 , wherein the second geographical zone information comprises:

a length of a zone; and

a width of the zone.

18. The wireless device of claim 17 , wherein a second zone is a rectangular shape centered by the second geographical coordinate with the length and the width.

19. The wireless device of claim 11 , wherein the access network comprises at least one of:

a low earth orbit (LEO) satellite;

a medium earth orbit (MEO) satellite;

a geostationary earth orbit (GEO) satellite;

an unmanned aircraft system (UAS) platform; or

a high elliptical orbit (HEO) platform.

20. A system comprising:

a wireless device comprising:

one or more first processors; and

first memory storing instructions that, when executed by the one or more first processors, cause the wireless device to:

send a first registration request message comprising a first geographical coordinate of a first geographical location;

receive a registration accept message comprising a radius value;

move to a second geographical location;

determine a distance between the first geographical coordinate and a second geographical coordinate of the second geographical location is larger than the radius value; and

send in response to the determination, a second registration request message comprising the second geographical coordinate; and

an access and mobility management function (AMF) comprising:

one or more second processors; and

second memory storing instructions that, when executed by the one or more second processors, cause the AMF to:

receive the first registration request message;

determine the radius value;

send the registration accept message comprising the radius value; and

receive the second registration request message.