Methods and systems for frequency multiplexed communication in dense wireless environments
First Claim
1. A method of high-efficiency wireless frequency division multiplexing, comprising:
- transmitting, from an access point to a first wireless device and a second wireless device, a reference signal for reserving an entire wireless medium including a set of wireless frequencies available for use by both the first and second wireless devices, the reference signal including an indication of a power level at which at least one of the first and second wireless devices should transmit communications, and the reference signal further comprising a data frame including a frame control field, a duration field, a receive address field, a transmit address field, a length field, a STA info field, one or more optional padding bits, and a frame check sequence (FCS);
in response to transmitting the reference signal, receiving, at the access point from the first wireless device, a first communication on a first subset of the set of wireless frequencies;
in response to transmitting the reference signal, receiving, at the access point from the second wireless device, a second communication on a second subset of the set of wireless frequencies, the first subset of wireless frequencies and the second subset of wireless frequencies being mutually exclusive subsets of the set of wireless frequencies, and the access point receiving the first and second wireless communications at times that at least partially overlap, andtransmitting, from the access point on only the first subset of wireless frequencies, a single broadcast acknowledgment of both the first and second communications.
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Accused Products
Abstract
Systems, methods, and devices for high-efficiency wireless frequency division multiplexing are provided. A method includes exchanging, at an access point, at least one frame reserving a wireless medium with at least one of a first and second wireless device. The method further includes receiving a first communication on a first set of wireless frequencies from the first wireless device. The method further includes receiving a second communication, at least partially concurrent with the first communication, on a second set of wireless frequencies from the second wireless device. The method further includes transmitting at least one acknowledgment of the first and second communication. The first set and the second set are mutually exclusive subsets of a set of wireless frequencies available for use by both the first and second wireless device.
55 Citations
48 Claims
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1. A method of high-efficiency wireless frequency division multiplexing, comprising:
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transmitting, from an access point to a first wireless device and a second wireless device, a reference signal for reserving an entire wireless medium including a set of wireless frequencies available for use by both the first and second wireless devices, the reference signal including an indication of a power level at which at least one of the first and second wireless devices should transmit communications, and the reference signal further comprising a data frame including a frame control field, a duration field, a receive address field, a transmit address field, a length field, a STA info field, one or more optional padding bits, and a frame check sequence (FCS); in response to transmitting the reference signal, receiving, at the access point from the first wireless device, a first communication on a first subset of the set of wireless frequencies; in response to transmitting the reference signal, receiving, at the access point from the second wireless device, a second communication on a second subset of the set of wireless frequencies, the first subset of wireless frequencies and the second subset of wireless frequencies being mutually exclusive subsets of the set of wireless frequencies, and the access point receiving the first and second wireless communications at times that at least partially overlap, and transmitting, from the access point on only the first subset of wireless frequencies, a single broadcast acknowledgment of both the first and second communications. - 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. An access point configured to perform high-efficiency wireless frequency division multiplexing, comprising:
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a processor; a transmitter configured to transmit, to a first wireless device and a second wireless device, a reference signal for reserving an entire wireless medium including a set of wireless frequencies available for use by both the first and second wireless devices, the reference signal including an indication of a power level at which at least one of the first and second wireless devices should transmit communications, and the reference signal further comprising a data frame including a frame control field, a duration field, a receive address field, a transmit address field, a length field, a STA info field, one or more optional padding bits, and a frame check sequence (FCS); a receiver configured to; in response to transmitting the reference signal, receive, from the first wireless device, a first communication on a first subset of the set of wireless frequencies; and in response to transmitting the reference signal, receive, from the second wireless device, a second communication on a second subset of the set of wireless frequencies, the first subset of wireless frequencies and the second subset of wireless frequencies being mutually exclusive subsets of the set of wireless frequencies, and the access point receiving the first and second wireless communications at times that at least partially overlap, the transmitter being further configured to transmit, on only the first subset of wireless frequencies, a single broadcast acknowledgment of both the first and second communications. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
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47. An apparatus for high-efficiency wireless frequency division multiplexing, comprising:
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means for transmitting, from an access point to a first wireless device and a second wireless device, a reference signal for reserving an entire wireless medium including a set of wireless frequencies available for use by both the first and second wireless devices, the reference signal including an indication of a power level at which at least one of the first and second wireless devices should transmit communications, and the reference signal further comprising a data frame including a frame control field, a duration field, a receive address field, a transmit address field, a length field, a STA info field, one or more optional padding bits, and a frame check sequence (FCS); means for, in response to transmitting the reference signal, receiving, at the access point from the first wireless device, a first communication on a first subset of the set of wireless frequencies; means for, in response to transmitting the reference signal, receiving a second communication on a second subset of the set of wireless frequencies, the first subset of wireless frequencies and the second subset of wireless frequencies being mutually exclusive subsets of the set of wireless frequencies, and the access point receiving the first and second wireless communications at times that at least partially overlap; and means for transmitting, from the access point on only the first subset of wireless frequencies, a single broadcast acknowledgment of both the first and second communications.
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48. A non-transitory computer-readable medium comprising code that, when executed, causes an apparatus to:
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transmit, to a first wireless device and a second wireless device, a reference signal for reserving an entire wireless medium including a set of wireless frequencies available for use by both the first and second wireless devices, the reference signal including an indication of a power level at which at least one of the first and second wireless devices should transmit communications, and the reference signal further comprising a data frame including a frame control field, a duration field, a receive address field, a transmit address field, a length field, a STA info field, one or more optional padding bits, and a frame check sequence (FCS); in response to transmitting the reference signal, receive, at the apparatus from the first wireless device, a first communication on a first subset of the set of wireless frequencies; in response to transmitting the reference signal, receive a second communication on a second subset of the set of wireless frequencies, the first subset of wireless frequencies and the second subset of wireless frequencies being mutually exclusive subsets of the set of wireless frequencies, and the apparatus receiving the first and second wireless communications at times that at least partially overlap; and transmit, from the apparatus on only the first subset of wireless frequencies, a single broadcast acknowledgment of both the first and second communications.
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Specification