MAC PROTOCOL FOR FULL DUPLEX WIRELESS COMMUNICATIONS
First Claim
Patent Images
1. A machine readable medium for full duplex wireless transmission performed by a wireless device, the machine readable medium including instructions, which when performed by a machine, cause the machine to perform operations comprising:
- sending a wireless medium reservation message addressed to a second wireless device on a first wireless channel;
receiving the wireless medium reservation message;
utilizing the received wireless medium reservation message to train echo cancellation circuitry;
receiving a confirmation message from the second wireless device, the confirmation message confirming receipt of the wireless medium reservation message by the second wireless device;
responsive to receiving the confirmation message, simultaneously transmitting data to the second wireless device and receiving data from the second wireless device on the first wireless channel by reducing interference from transmissions of the wireless device using the echo cancellation circuitry.
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Abstract
Disclosed in some examples are systems, methods, and machine readable mediums which allow for the deployment of advanced radios which are capable of simultaneous transmission and reception on the same frequency in existing wireless networks, while maintaining backward compatibility with older devices.
30 Citations
30 Claims
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1. A machine readable medium for full duplex wireless transmission performed by a wireless device, the machine readable medium including instructions, which when performed by a machine, cause the machine to perform operations comprising:
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sending a wireless medium reservation message addressed to a second wireless device on a first wireless channel; receiving the wireless medium reservation message; utilizing the received wireless medium reservation message to train echo cancellation circuitry; receiving a confirmation message from the second wireless device, the confirmation message confirming receipt of the wireless medium reservation message by the second wireless device; responsive to receiving the confirmation message, simultaneously transmitting data to the second wireless device and receiving data from the second wireless device on the first wireless channel by reducing interference from transmissions of the wireless device using the echo cancellation circuitry. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A wireless device comprising:
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a memory and a processor coupled to the memory and configured to include; a Medium Access Control (MAC) module configured to; send a wireless medium reservation message addressed to a second wireless device on a first wireless channel; receive the wireless medium reservation message; utilize the received wireless medium reservation message to train echo cancellation circuitry; receive a confirmation message from the second wireless device, the confirmation message confirming receipt of the wireless medium reservation message by the second wireless device; responsive to receiving the confirmation message, simultaneously cause a physical layer module to transmit data to the second wireless device and receive data from the second wireless device on the first wireless channel by using the echo cancellation circuitry to reduce interference from transmissions of the wireless device. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for full duplex wireless transmission performed by a wireless device, the method comprising:
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sending a wireless medium reservation message addressed to a second wireless device on a first wireless channel; receiving the wireless medium reservation message; utilizing the received wireless medium reservation message to train echo cancellation circuitry; receiving a confirmation message from the second wireless device, the confirmation message confirming receipt of the wireless medium reservation message by the second wireless device; responsive to receiving the confirmation message, simultaneously transmitting data to the second wireless device and receiving data from the second wireless device on the first wireless channel by reducing interference from transmissions of the wireless device using the echo cancellation circuitry. - View Dependent Claims (22, 23, 24, 25)
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26. A wireless device comprising:
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one or more antennas; echo cancellation circuitry coupled to the one or more antennas; a transceiver coupled to the echo cancellation circuitry and the one or more antennas; a memory and a processor coupled to the memory coupled to the transceiver and configured to include; a Medium Access Control (MAC) module configured to; receive a wireless medium reservation message addressed to the wireless device on a first wireless channel ; send a confirmation message from the second wireless device, the confirmation message confirming receipt of the wireless medium reservation message by the second wireless device; receive the confirmation message; train echo cancellation circuitry using the received confirmation message; responsive to receiving the confirmation message, simultaneously cause a physical layer module to transmit data via the transceiver to the second wireless device and receive data from the second wireless device on the first wireless channel via the transceiver by using the echo cancellation circuitry to reduce interference from transmissions of the wireless device. - View Dependent Claims (27, 28, 29, 30)
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Specification