Method and apparatus for establishing direct mobile to mobile communication between cellular mobile terminals
First Claim
1. A method for establishing direct mobile to mobile communication between cellular mobile terminals, said method comprising:
- selecting a frequency designated as a mobile communication frequency within a cellular communication system;
transmitting by a first mobile terminal a communication initiation sequence at the selected frequency;
monitoring by a second mobile terminal the designated mobile communication frequencies; and
detecting by the second mobile terminal the communication initiation sequence.
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Accused Products
Abstract
The present invention provides a method for establishing direct mobile to mobile communication between cellular mobile terminals. The method includes selecting a frequency designated as a mobile communication frequency within a cellular communication system, and transmitting a communication initiation sequence at the selected frequency by a first mobile terminal. A second mobile terminal then monitors the designated mobile communication frequencies, and detects the communication initiation sequence. In at least one embodiment, selecting a frequency includes determining the region in which the first mobile terminal is operating, and selecting a mobile communication frequency for the determined region. In at least a further embodiment, the mobile communication frequency is a mobile transmission frequency for the determined region. In at least a still further embodiment, selecting a frequency includes selecting a frequency that is designated as a mobile transmit frequency in a first supported region and is designated as a mobile receive frequency in a second supported region.
45 Citations
28 Claims
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1. A method for establishing direct mobile to mobile communication between cellular mobile terminals, said method comprising:
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selecting a frequency designated as a mobile communication frequency within a cellular communication system;
transmitting by a first mobile terminal a communication initiation sequence at the selected frequency;
monitoring by a second mobile terminal the designated mobile communication frequencies; and
detecting by the second mobile terminal the communication initiation sequence. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A cellular mobile terminal adapted for direct mobile to mobile communication, said mobile terminal comprising:
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a transmitter;
a receiver; and
a control circuit, coupled to the transmitter and the receiver, wherein at least one of the transmitter and the receiver is adapted to function at a frequency of operation, corresponding to the other one of the transmitter and the receiver. - View Dependent Claims (24, 25, 26, 27, 28)
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Specification