초록 ▼

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 bas

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 information from all predecessor base stations to be obtained, and transmitted an MSC for subsequent processing in an operation support system.

대표청구항 ▼

[ What is claimed is:] [1.]1. In a wireless cellular telecommunications system, comprising a mobile switching center (MSC), and a plurality of base stations, a method of retrieving call processing data for a selected call comprising the steps of:on handoff, transmitting an identity of a call record,

[ What is claimed is:] [1.]1. In a wireless cellular telecommunications system, comprising a mobile switching center (MSC), and a plurality of base stations, a method of retrieving call processing data for a selected call comprising the steps of:on handoff, transmitting an identity of a call record, comprising call processing data for a call, and of a handing off base station from said handing off base station to a handed off base station;storing said identities of the handing off base station and the call record in said handing off base station in a call record for said call in said handed off base station;retaining a call record for said call in said handing off base station;selecting a particular call to be monitored;responsive to said selecting, transmitting a request message comprising the stored call record identity to a predecessor (handing off) base station of said base station serving said particular call; andtransmitting data from said predecessor call record to said MSC.