System and method for handing off a cellular call with system and capability change indication
First Claim
1. In a cellular mobile telecommunications system including a mobile station communicating with any one of a plurality of geographically spaced base stations each in cell locations, the base stations communicating with a mobile switching center to selectively determine one of the base stations to process a call with the mobile station, a handoff system for handing off a cellular call with the mobile station from any one base station to another base station, comprising:
- a forward communication channel selectively associated with the one base station for transferring data from the one base station to the mobile station;
the one base station being adapted to receive a command from the mobile switching center to handoff processing of the call to another base station, the command including information on capabilities of the another base station; and
a message generator operatively associated with the one base station for sending a capability change indicator to the mobile station via the forward communication channel in response to a handoff command from the mobile switching center, the capability change indicator including information on capabilities of the another base station relative to the one base station.
1 Assignment
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Accused Products
Abstract
A cellular mobile telecommunication system includes a mobile station communicating with any one of a plurality of geographically spaced base stations, the base stations communicating with a mobile switching center to selectively determine one of the base stations to process a call with the mobile station. A handoff system hands off a cellular call with the mobile station from one base station to another base station. The handoff system includes a forward communication channel selectively associated with the one base station for transferring data from the one base station to the mobile station. The one base station is adapted to receive a command from the mobile switching center to handoff processing of the call to another base station, the command including information on capabilities of another base station. A message generator operatively associated with the one base station sends a capability change indicator to the mobile station via the forward communication channel and responds to a handoff command from the mobile switching center. The capability change indicator includes information on capabilities of the another base station relative to the one base station.
23 Citations
14 Claims
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1. In a cellular mobile telecommunications system including a mobile station communicating with any one of a plurality of geographically spaced base stations each in cell locations, the base stations communicating with a mobile switching center to selectively determine one of the base stations to process a call with the mobile station, a handoff system for handing off a cellular call with the mobile station from any one base station to another base station, comprising:
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a forward communication channel selectively associated with the one base station for transferring data from the one base station to the mobile station; the one base station being adapted to receive a command from the mobile switching center to handoff processing of the call to another base station, the command including information on capabilities of the another base station; and a message generator operatively associated with the one base station for sending a capability change indicator to the mobile station via the forward communication channel in response to a handoff command from the mobile switching center, the capability change indicator including information on capabilities of the another base station relative to the one base station. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for handing off a cellular call with a mobile station from any one base station to another base station in a cellular mobile telecommunications system including the mobile station communicating with any one of a plurality of geographically spaced base stations each in cell locations, the base stations communicating with a mobile switching center to selectively determine one of the base stations to process a call with the mobile station, the method comprising the steps of:
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the one base station for transferring data to the mobile station via a forward communication channel selectively associated with the one base station; the one base station receiving a handoff command from the mobile switching center to handoff processing of the call to another base station, the command including information on capabilities of the another base station; and the one base station generating a message including a capability change indicator to the mobile station via the forward communication channel in response to a handoff command from the mobile switching center, the capability change indicator including information on capabilities of the another base station relative to the one base station. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification