H - Electricity – 04 – Q
Patent
H - Electricity
04
Q
H04Q 7/34 (2006.01) H04Q 7/38 (2006.01)
Patent
CA 2293161
A method and apparatus for obtaining call record information in a mobile telecommunication switching system. The information is obtained, not only from the base station serving a call at the time that of the call record information is requested, but also for obtaining such information from prior base stations serving the call and subsequent base stations serving the call. Whenever a call is handed off, the identity of the call record and the handing off base station, as well as the identity of the handing off base station and the mobile switching center (MSC), serving the call in the previous base station are recorded in the handed to base station. When a request for call record information is received, the base station serving the call transmits such call record information, and also transmits a request to the immediately prior base station to transmit its call record information from the identified call record. The predecessor then requests a similar action from its predecessor, if any. The initial base station for serving the call is initialized to record that it has no predecessors. Advantageously, this arrangement allows call record infor-mation from all predecessor base stations to be obtained, and transmitted an MSC for subsequent processing in an operation support system.
Kirby Eades Gale Baker
Lucent Technologies Inc.
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