Communicating mobility events in an IMS network environment

A non-transitory computer-readable medium storing instructions that, when executed by a processor in an Internet Protocol Multimedia Subsystem (IMS) network, cause the network to execute a method to track mobility events in a mobile telecommunications access network, the method comprising:

• receiving, from a mobile device, a request to register to an IMS network;
• receiving an identification of a first base station to which the mobile device is connected;
• creating or modifying, by the component within the IMS network, a call detail record,
• wherein the call detail record logs an indication of the first base station to which the mobile device is connected;
• receiving, from the mobile device, an identification of a second base station to which the mobile device is connected,
• wherein the identification of the second base station is received via an Extensible Markup Language Configuration Access Protocol (XCAP) Ut interface, and
• wherein the identification of the second base station to which the mobile device is connected is received via a Hypertext Transfer Protocol (HTTP) PUT request or a HTTP POST request on the XCAP Ut interface;
• and
• modifying, by the component within the IMS network, the call detail record to log an indication of the second base station to which the mobile device is connected.

A system adapted to tracking mobility events in a mobile telecommunications access network, the system comprising:

• a memory;
• a processor coupled to the memory, wherein the system is further configured to:
• receive, from a mobile device, a request to register to an IMS network;
• receive an identification of a first base station to which the mobile device is connected;
• store, by a component within the IMS network, the identification of the first base station to which the mobile device is connected;
• create or modify, by the component within the IMS network, a call detail record,
• wherein the call detail record logs an indication of the first base station to which the mobile device is connected;
• receiving, from the mobile device, an identification of a second base station to which the mobile device is connected,
• wherein the identification of the second base station is received via an Extensible Markup Language Configuration Access Protocol (XCAP) Ut interface, and
• wherein the identification of the second base station to which the mobile device is connected is received via a Hypertext Transfer Protocol (HTTP), PUT request or a HTTP POST request on the XCAP Ut interface;
• store, by the component within the IMS network, the identification of the second base station to which the mobile device is connected;
• and
• modify, by the component within the IMS network, the call detail record to log an indication of the second base station to which the mobile device is connected.

A computer-implemented method in an Internet Protocol Multimedia Subsystem (IMS) network to track mobility events in a mobile telecommunications access network, the method comprising:

• receiving, from a mobile device, a request to register to an IMS network;
• receiving an identification of a first base station to which the mobile device is connected;
• storing, by a component within the IMS network, the identification of the first base station to which the mobile device is connected;
• creating or modifying, by the component within the IMS network, a call detail record,
• wherein the call detail record logs an indication of the first base station to which the mobile device is connected;
• receiving, from the mobile device, an identification of a second base station to which the mobile device is connected,
• wherein the identification of the second base station is received via an Extensible Markup Language Configuration Access Protocol (XCAP) Ut interface, and
• storing, by the component within the IMS network, the identification of the second base station to which the mobile device is connected;
• and
• modifying, by the component within the IMS network, the call detail record to log an indication of the second base station to which the mobile device is connected,
• wherein the storing of the identification of the second base station and the modifying of the call detail record occur only in response to a determination that the identification of the second base station does not match the stored identification of the first base station.