SELECTING AN APPLICATION SERVER AT WHICH TO REGISTER ONE OR MORE USER EQUIPMENTS FOR AN INTERNET PROTOCOL MULTIMEDIA SUBSYSTEM (IMS) SESSION

摘要

In an embodiment, an Internet Protocol (IP) multimedia subsystem (IMS) network that is operated by a single operator receives a request from a user equipment (UE) for registering to a group IMS session. The IMS network determines a location region where the UE is located and identifies a single application server deployed in the location region at which to register UEs that are located in the location region and request registration to the group IMS session. In another embodiment, an application server deployed in a first location region receives a request to register a UE to an IMS session from the IMS network. The application server selectively redirects the registration for the UE either to (i) an application server deployed in a second location region, or (ii) another application server deployed in the first location region.

主权项

1. A method of operating an Internet Protocol (IP) multimedia subsystem (IMS) network that is operated by a single operator, comprising:
receiving, from a user equipment (UE) that is connected to a non-cellular access network, a request to register to a group IMS session; obtaining location information associated with the UE that indicates that the UE is operating in a given location region from a plurality of location regions; identifying, from among a plurality of application servers deployed throughout the plurality of location regions and configured to provide IMS service on behalf of the single operator, two or more application servers that are deployed in the given location region; determining that any UE requesting registration to the group IMS session and located in the given location region is to be registered to a single application server that is selected from the two or more identified application servers; and registering the UE with the selected single application server based on the determination.