Multiple Context Issue for Single UE in the Network
Systems, methods and computer software are disclosed for resolving multiple contexts for a User Equipment (UE) in a wireless network. In one embodiment a method includes maintaining, for a coordinating node hosting a first Radio Access Technology (RAT) controller and a second RAT controller simultaneously, a centrally maintained database; determining, based on the contents of the centrally maintained database, when the UE is registering with the second RAT controller while currently registered with the first RAT controller; and sending, by the second RAT controller, a deregistration command to the first RAT controller the UE was registered with, wherein context is freed and wherein resources held at both the coordinating node and at a base station are freed.
1 . A method for resolving multiple contexts for a User Equipment (UE) in a wireless network, comprising:
maintaining, for a first Radio Access Technology (RAT) controller and a second RAT controller, a centrally maintained database;
determining, based on the contents of the centrally maintained database, when the UE is registering with the second RAT controller while currently registered with the first RAT controller; and
sending, by the second RAT controller, a deregistration command to the first RAT controller the UE was registered with, wherein context is freed and wherein resources held at a base station are freed.
2 . The method of claim 1 wherein hosting a first RAT controller comprises hosting one of a 2G RAT controller, a 3G RAT controller, a 4G RAT controller, and a 5G RAT controller.
3 . The method of claim 1 wherein hosting a second RAT controller comprises hosting one of a 2G RAT controller, a 3G RAT controller, a 4G RAT controller, and a 5G RAT controller.
4 . The method of claim 1 wherein maintaining a centrally maintained database comprises maintaining a centrally maintained database based on key International Mobile Subscriber Identity (IMSI)/International Mobile Equipment Identity (IMEI).
5 . The method of claim 4 wherein maintaining a centrally maintained database comprises maintaining a database including at least one of IMSI, context-id, RAT, and Virtual Node Id.
6 . The method of claim 5 wherein maintaining a centrally maintained database comprises maintaining a database including location information understandable by RAT (LA/RA/TA) which the UE is serving.
7 . A system for resolving multiple contexts for a User Equipment (UE) in a wireless network, comprising:
a UE;
a first Radio Access Technology (RAT) controller in communication with the UE;
a second Radio Access Technology (RAT) controller in communication with the UE; and
a coordinating node for a first Radio Access Technology (RAT) controller and a second RAT controller, and maintaining a central database,
wherein the coordinating node is configured to determine, based on the central database, when the UE is registering with the second RAT controller while currently registered with the first RAT controller;
wherein the second RAT controller sends a deregistration command to the first RAT controller the UE was registered with; and
wherein context and resources held at both the coordinating node and at a base station are freed.
8 . The system of claim 7 wherein the first RAT controller is one of a 2G RAT controller, a 3G RAT controller, a 4G RAT controller, and a 5G RAT controller.
9 . The system of claim 7 wherein the second RAT controller is one of a 2G RAT controller, a 3G RAT controller, a 4G RAT controller, and a 5G RAT controller.
10 . The system of claim 7 wherein the centrally maintained database comprises a centrally maintained database based on key International Mobile Subscriber Identity (IMSI)/International Mobile Equipment Identity (IMEI).
11 . The system of claim 10 wherein the centrally maintained database comprises a database including at least one of IMSI, context-id, RAT, and Virtual Node Id.
12 . The system of claim 11 wherein the centrally maintained database comprises a database including location information understandable by RAT (LA/RA/TA) which the UE is serving.
13 . A non-transitory computer-readable medium containing instructions for resolving multiple contexts for a User Equipment (UE) in a wireless network which, when executed, cause the wireless network to perform steps comprising:
maintaining, for a first Radio Access Technology (RAT) controller and a second RAT controller, a centrally maintained database;
determining, based on the contents of the centrally maintained database, when the UE is registering with the second RAT controller while currently registered with the first RAT controller; and
sending, by the second RAT controller, a deregistration command to the first RAT controller the UE was registered with, wherein context is freed and wherein resources held at a base station are freed.
14 . The computer-readable medium of claim 13 wherein instructions for hosting a first RAT controller comprises instructions for hosting one of a 2G RAT controller, a 3G RAT controller, a 4G RAT controller, and a 5G RAT controller.
15 . The computer-readable medium of claim 13 wherein instructions for hosting a second RAT controller comprises instructions for hosting one of a 2G RAT controller, a 3G RAT controller, a 4G RAT controller, and a 5G RAT controller.
16 . The computer-readable medium of claim 13 wherein instructions for maintaining a centrally maintained database comprises instructions for maintaining a centrally maintained database based on key International Mobile Subscriber Identity (IMSI)/International Mobile Equipment Identity (IMEI).
17 . The computer-readable medium of claim 16 wherein instructions for maintaining a centrally maintained database comprises instructions for maintaining a database including at least one of IMSI, context-id, RAT, and Virtual Node Id.
18 . The computer-readable medium of claim 17 wherein instructions for maintaining a centrally maintained database comprises instructions for maintaining a database including location information understandable by RAT (LA/RA/TA) which the UE is serving.