Method and system for collision avoidance in wireless communications
First Claim
1. A method for reducing transmission collisions, comprising:
- in a systemless call environment, receiving at a plurality of receiving mobile units a call from an original transmitting mobile unit; and
in the plurality of receiving mobile units, selectively randomly delaying transmissions from the receiving mobile units to reduce the probability that such transmissions will collide with one another.
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Accused Products
Abstract
The invention concerns a method (300) and mobile unit (110) for reducing transmission collisions. The method can include—in a systemless call environment—receiving (314) at a plurality of receiving mobile units (110B, 110C) a call from an original transmitting mobile unit (110A) and in the plurality of receiving mobile units, selectively randomly delaying (316) transmissions from the receiving units to reduce the probability that such transmissions will collide with one another. The selectively randomly delaying a transmission at the receiving units step can include performing (318) a pre-transmission scan when a transmission element (112) of one of the receiving mobile units is activated or by assigning (330) a random delay to an idle mode (400) following a receive session in the receiving mobile units.
32 Citations
22 Claims
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1. A method for reducing transmission collisions, comprising:
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in a systemless call environment, receiving at a plurality of receiving mobile units a call from an original transmitting mobile unit; and
in the plurality of receiving mobile units, selectively randomly delaying transmissions from the receiving mobile units to reduce the probability that such transmissions will collide with one another. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A mobile unit for reducing transmission collisions, comprising:
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a transmitter;
a receiver; and
a processor coupled to the transmitter and the receiver, wherein the processor is programmed to;
detect the receipt of a call from an original transmitting mobile unit in a systemless call environment; and
selectively randomly delay a transmission from the mobile unit to reduce the possibility that such a transmission will collide with a transmission from another receiving unit. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A machine readable storage having stored thereon a computer program having a plurality of code sections executable by a mobile unit for causing the mobile unit to:
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in a systemless call environment, receive a call from an original transmitting mobile unit; and
in the plurality of receiving mobile communications units, selectively randomly delay a transmission from the mobile unit to reduce the probability that such a transmission will collide with another transmission. - View Dependent Claims (21, 22)
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Specification