Granted Patent B2

US 12,628,074 · App. 17/919,442 · Granted May 12, 2026

Inventors: Hyung-Nam Choi (Ottobrunn, DE); Genadi Velev (Darmstadt, DE); Joachim Loehr (Wiesbaden, DE); Prateek Basu Mallick (Dreieich, DE); Ravi Kuchibhotla (Chicago, IL)

Assignee: Lenovo (Singapore) Pte. Ltd.

H04W48/18H04W24/02H04W48/16H04W72/20

Abstract

Claims (31)

1 . A method performed by a first network entity, the method comprising:

receiving, from a user equipment (UE), a first message comprising information indicating a request to register a plurality of network slices;

determining target network slice information corresponding to a plurality of target network slices, wherein the target network slice information comprises information indicating network slices of the plurality of network slices not supported in a current tracking area (TA); and

transmitting a second message to a second network entity comprising the target network slice information, wherein the second message further indicates frequency specific configuration associated with the target network slice information, and wherein the frequency specific configuration enables use of the network slices not supported in the current TA.

2 . The method of claim 1 , wherein the area in which the UE is located comprises a cell of a tracking area or a plurality of cells of the tracking area.

3 . The method of claim 1 , wherein the frequency specific configuration associated with the plurality of target network slices comprises a configuration of frequency carriers, frequency bands, frequency priorities, or some combination thereof.

4 . The method of claim 1 , wherein receiving the first message comprises receiving the first message at an access and mobility management function.

5 . The method of claim 1 , wherein the first message comprises a request for frequency specific configuration associated with the plurality of network slices to register.

6 . The method of claim 1 , wherein a third message is transmitted to a UE, and the third message comprises the target network slice information and the associated frequency specific configuration.

7 . A first network entity, comprising:

at least one memory; and

at least one processor coupled with the at least one memory and configured to cause the first network entity to:

receive, from a user equipment (UE), a first message comprising information indicating a request to register a plurality of network slices;

determine target network slice information corresponding to a plurality of target network slices, wherein the target network slice information comprises information indicating network slices of the plurality of network slices not supported in a current tracking area (TA); and

transmit a second message to a second network entity comprising the target network slice information, wherein the second message further indicates frequency specific configuration associated with the target network slice information, and wherein the frequency specific configuration enables use of the network slices not supported in the current TA.

8 . The first network entity of claim 7 , wherein the at least one processor is configured to cause the first network entity to receive the first message at an access and mobility management function.

9 . A second network entity, comprising:

at least one memory; and

at least one processor coupled with the at least one memory and configured to cause the second network entity to:

receive a first message from a first network entity, wherein the first message comprises target network slice information corresponding to a target network slice of a communication device, a frequency specific configuration associated with the target network slice, or a combination thereof;

determine a target cell of a plurality of cells in which the target network slice is supported; and

transmit a second message to a user equipment (UE), wherein the second message comprises target cell information and a request to connect with the target cell, wherein the target network slice information comprises information indicating network slices of a plurality of network slices not supported in a current tracking area (TA), and wherein the frequency specific configuration enables use of the network slices not supported in the current TA.

10 . The method of claim 1 , wherein transmitting the second message comprises transmitting the second message to a radio network entity.

11 . The first network entity of claim 7 , wherein the area in which the UE is located comprises a cell of a tracking area or a plurality of cells of the tracking area.

12 . The first network entity of claim 7 , wherein the frequency specific configuration associated with the plurality of target network slices comprises a configuration of frequency carriers, frequency bands, frequency priorities, or some combination thereof.

13 . The first network entity of claim 7 , wherein the at least one processor is configured to cause the first network entity to transmit the second message to a radio network entity.

14 . The second network entity of claim 9 , wherein the first network entity comprises an access and mobility management function (AMF).

15 . The second network entity of claim 9 , wherein the at least one processor is configured to cause the second network entity to receive the first message at a radio access entity.

16 . The second network entity of claim 9 , wherein the second message comprises a radio resource control connection release message or a radio resource control connection reconfiguration message.

17 . The second network entity of claim 9 , wherein the target network slice information comprises information indicating network slices of a plurality of network slices not supported in an area in which the UE is located.

18 . The second network entity of claim 9 , wherein the frequency specific configuration associated with the target network slice comprises a configuration of frequency carriers, frequency bands, frequency priorities, or some combination thereof.

Assignments (2)

Continuity (2)

References Cited (24)