Resource allocation system for wireless networks
First Claim
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1. A method of communicating information via a wireless network, said method comprising the steps of:
- broadcasting over a wireless communications channel a first signaling message from a first end-user communications device which is coupled to a wireless network, said signaling message including a request to transmit at least one data packet to a second communications end-user device which is also coupled to said wireless network, said request including data indicative of an upper power level at which said first end-user communications device is able to transmit said at least one data packet;
in response to said second end-user communications device receiving said first signaling message, determining permission parameters for said at least one data packet to be transmitted by said first end-user communications device, said permission parameters including a prescribed power level for transmission of said at least one data packet;
broadcasting from said second end-user communications device a second signaling message via said communications channel, said second signaling message including said permission parameters; and
in response to said first end-user communications device receiving said second signaling message, transmitting from said first end-user communications device said at least one data packet based on said prescribed power level.
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Abstract
A system is designed to allow collision to be avoided in a wireless local area network environment through the exchange (between a transmitting station and an intended receiving station) of handshake information that includes power level control signals indicative of power levels at which the sending and receiving stations are allowed to operate in order a) to avoid causing interference with communications between other stations, and b) to prevent other stations from causing interference in subsequent communications between the sending and receiving stations.
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Citations
37 Claims
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1. A method of communicating information via a wireless network, said method comprising the steps of:
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broadcasting over a wireless communications channel a first signaling message from a first end-user communications device which is coupled to a wireless network, said signaling message including a request to transmit at least one data packet to a second communications end-user device which is also coupled to said wireless network, said request including data indicative of an upper power level at which said first end-user communications device is able to transmit said at least one data packet; in response to said second end-user communications device receiving said first signaling message, determining permission parameters for said at least one data packet to be transmitted by said first end-user communications device, said permission parameters including a prescribed power level for transmission of said at least one data packet; broadcasting from said second end-user communications device a second signaling message via said communications channel, said second signaling message including said permission parameters; and in response to said first end-user communications device receiving said second signaling message, transmitting from said first end-user communications device said at least one data packet based on said prescribed power level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for communicating information over a wireless network, said system comprising:
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a first end-user communications device that broadcasts over a wireless network a request to transmit at least one data packet to a second end-user communications device, said request including data indicative of an upper power level at which said first mobile end-user communications device is able to transmit said at least one data packet; a processor of said second end-user communications device which receives said request and determines permission parameters for said at least one data packet to be transmitted by said first mobile end-user communications device, said permission parameters including a prescribed power level for transmission of said at least one data packet; a first transmitter included in said second end-user communications device that forwards a second signaling message to said first mobile end-user communications device, said second signaling message including said permission parameters; and a second transmitter included in said first end-user communications device, responsive to receiving said second signaling message, sends said at least one data packet to said second end-user communications device based on said prescribed power level. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method of operating a wireless packet network that serves a plurality of stations, said method comprising the steps of:
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exchanging signaling packets between a pair of stations which include a sending station and a receiving station, said signaling messages being exchanged prior to any communications of at least one data packet between said stations, said signaling packets also being exchanged via a communications channel of said wireless packet network and containing information which is included in at least one of said signaling packets, said information comprising a) addresses of said stations b) length of said at least one data packet to be communicated, c) signaling power levels at which said signaling packets are being transmitted d) an upper interference signal level, and e) a prescribed power level at which said at least one data packet is to be communicated; and transmitting said at least one data packet from said sending station to said receiving station when said transmission is able to take place in accordance with said prescribed power level. - View Dependent Claims (26, 27)
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28. A wireless packet network that serves a plurality of stations connected thereto, said network comprising:
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a transmitter which transmits to a receiving station signaling packets received from a sending station, said transmission being carded out via a communications channel of said wireless packet network in order to facilitate transfer of at least one payload data packet between said stations, wherein information included in at least one of said signaling packets is comprised of a) addresses of said stations b) length of said at least one data packet to be communicated, c) signaling power levels at which said signaling packets are being transmitted d) a upper interference level, and e) a prescribed power level at which said at least one data packet is to be communicated; and a receiver which receives said at least one payload data packet from said sending station and transfers said at least one payload data packet to said receiving station when said transfer is able to take place at said prescribed power level. - View Dependent Claims (29)
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30. A method of communicating information via a wireless network, said method comprising the steps of:
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receiving at a first device a request-to-transmit message sent by a second device; in response to receiving said request, broadcasting from said first device at least one transmission power parameter which includes a transmission power level indicative of an upper transmission power level at which said first device is able to transmit; and in response to said broadcasting of said at least one transmission power parameter by said first device, transmitting a message from said second device at substantially said transmission power level. - View Dependent Claims (31, 32)
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33. A wireless system comprising:
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a first device which a) receives from a second device a request-to-transmit message, and b) responsive to said request, broadcasts at least one transmission power parameter which includes a transmission power indicative of an upper transmission power level at which said first device is able to transmit; and a circuit of said second device responsive to receiving said at least one transmission power parameter, transmits information to said first device at substantially said transmission power level. - View Dependent Claims (34, 35)
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36. A method of communicating information via a wireless network, said method comprising the steps of:
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receiving at a first device a request-to-transmit message sent by a second device; in response to receiving said request, broadcasting from said first device at least one transmission power parameter which includes a transmission power level; and in response to said broadcasting of said at least one transmission power parameter by said first device, transmitting a message from said second device at substantially said transmission power level wherein, said at least one transmission power parameter includes an upper interference signal level above which at least one other device connected to said wireless network is forbidden to transmit during said transmission of said message by said second device.
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37. A wireless system, comprising:
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a first device which a) receives from a second device a request-to-transmit message, and b) responsive to said request, broadcasts at least one transmission power parameter which includes a transmission power level; and a circuit of said second device, responsive to receiving said at least one transmission power parameter, transmits a message to said first device at substantially said transmission power level wherein, said at least one transmission power parameter includes an upper interference signal level above which at least one other device connected to said wireless network is forbidden to transmit during said transmission of said message by said second device.
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Specification