Telecommunications – Radiotelephone system – Special service
Reexamination Certificate
2005-11-01
2005-11-01
Moise, Emmanuel L. (Department: 2681)
Telecommunications
Radiotelephone system
Special service
C455S466000, C455S458000, C455S456300
Reexamination Certificate
active
06961560
ABSTRACT:
Methods, system and apparatus are provided for advertising service offerings in a communication system. An example embodiment comprises at least one device. A first device broadcasts a message of a first type, chooses a value for a time limit and listens for a message sent by a second device. If no message has been received before time limit, elapse, it again broadcasts a message of a first type. Otherwise, the message received from said second device is analyzed and if said message includes valid information about said first device chooses a value for the time limit. However, if said message received does not include valid service description about said first device, a message of a second type is broadcast. This reduces useless broadcast of a complete service list. Broadcast may be initiated more often and, service discovery for new devices coming into proximity takes less time.
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Hermann Reto
Husemann Dirk
Moser Michael
Nidd Michael Elton
Afshar Kamran
Herzberg Louis P.
Moise Emmanuel L.
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