Originator and recipient based transmissions in wireless communications
First Claim
Patent Images
1. A method comprising:
- receiving, by a first node, a first transmission from a second node;
determining, based at least in part on the first transmission, a plurality of transmission levels, respectively, for a plurality of time-frequency channels;
generating a signal that comprises an originator-based first pseudorandom sequence; and
transmitting the signal, via the plurality of time-frequency channels and using the plurality of transmission levels, as at least part of an orthogonal frequency division multiplexing (OFDM) second transmission via one or more antennas of a plurality of antennas of the first node.
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Abstract
Methods and systems are described for determining a plurality of transmission levels for, e.g., a plurality of time-frequency channels and/or a plurality of tones. The transmission levels may be determined by a first node based on, for example, a received transmission from a second node. The first node may generate a signal, which may be based on, for example, an originator-based pseudorandom sequence, a recipient-based pseudorandom sequence, and/or a complex sinusoid. The first node may transmit the signal as an orthogonal frequency division multiplexing (OFDM) transmission.
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Citations
65 Claims
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1. A method comprising:
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receiving, by a first node, a first transmission from a second node; determining, based at least in part on the first transmission, a plurality of transmission levels, respectively, for a plurality of time-frequency channels; generating a signal that comprises an originator-based first pseudorandom sequence; and transmitting the signal, via the plurality of time-frequency channels and using the plurality of transmission levels, as at least part of an orthogonal frequency division multiplexing (OFDM) second transmission via one or more antennas of a plurality of antennas of the first node. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A first node comprising:
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a plurality of antennas; and circuitry configured to; receive a first transmission from a second node; determine, based at least in part on the first transmission, a plurality of transmission levels, respectively, for a plurality of tones; generate a signal that comprises an originator-based first pseudorandom sequence modified by an originating node index overlay and a recipient-based second pseudorandom sequence; and cause transmission of the signal, using the plurality of tones and the plurality of transmission levels, as at least part of an orthogonal frequency division multiplexing (OFDM) second transmission via one or more antennas of the plurality of antennas. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A method comprising:
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receiving, by a first node, a first transmission from a second node; determining, based at least in part on the first transmission, a plurality of transmission levels, respectively, for a plurality of tones; generating a signal that comprises an originator-based first pseudorandom sequence and that comprises a complex sinusoid that identifies an originator of an orthogonal frequency division multiplexing (OFDM) second transmission; and transmitting the signal, using the plurality of tones and the plurality of transmission levels, as at least part of the OFDM second transmission via one or more antennas of a plurality of antennas of the first node. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26)
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27. A first node comprising:
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a plurality of antennas; and circuitry configured to; receive a first transmission from a second node; determine, based at least in part on the first transmission, a plurality of transmission levels, respectively, for a plurality of tones; generate a signal that comprises; an originator-based first pseudorandom sequence, wherein the originator-based first pseudorandom sequence identifies an originating group, associated with an orthogonal frequency division multiplexing (OFDM) second transmission, that comprises the first node; a second pseudorandom sequence that identifies a recipient of the OFDM second transmission; and a complex sinusoid that identifies an originator of the OFDM second transmission; and cause transmission of the signal, using the plurality of tones and the plurality of transmission levels, as at least part of the OFDM second transmission via one or more antennas of the plurality of antennas. - View Dependent Claims (28, 29, 30, 32)
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31. A method comprising:
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receiving, by a first node, a first transmission from a second node; determining, based at least in part on the first transmission, a plurality of transmission levels, respectively, for a plurality of tones; generating a signal that comprises an originator-based first pseudorandom sequence; inserting the signal into a first plurality of a time series of orthogonal frequency division multiplexing (OFDM) symbols of an OFDM second transmission and user data into a second plurality of the time series of OFDM symbols of the OFDM second transmission; and transmitting the signal, using the plurality of tones and the plurality of transmission levels, as at least part of the OFDM second transmission via one or more antennas of a plurality of antennas of the first node. - View Dependent Claims (33, 34, 35, 36, 37, 38)
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39. A first node comprising:
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a plurality of antennas; and circuitry configured to; determine, based at least in part on a first transmission received from a second node, a plurality of transmission levels, respectively, for a plurality of time-frequency channels; and cause a signal, comprising an originator-based first pseudorandom sequence, to be transmitted via the plurality of time-frequency channels and using the plurality of transmission levels, as at least part of an orthogonal frequency division multiplexing (OFDM) second transmission via one or more antennas of the plurality of antennas. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47, 48, 49)
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50. A system comprising:
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a first node comprising; a plurality of antennas; and first circuitry configured to; determine, based at least in part on a first transmission received from a second node, a plurality of transmission levels, respectively, for a plurality of time-frequency channels; and cause a signal, comprising an originator-based first pseudorandom sequence and a recipient-based second pseudorandom sequence, to be transmitted via the plurality of time-frequency channels and using the plurality of transmission levels, as at least part of an orthogonal frequency division multiplexing (OFDM) second transmission via one or more antennas of the plurality of antennas; and a second node comprising; at least one antenna; and second circuitry configured to determine whether to process the OFDM second transmission, received via the at least one antenna of the second node, based at least in part on the recipient-based second pseudorandom sequence. - View Dependent Claims (51, 52, 53, 54, 55)
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56. A system comprising:
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a first node comprising; a plurality of antennas; and first circuitry configured to; determine, based at least in part on a first transmission received from a second node, a plurality of transmission levels, respectively, for a plurality of time-frequency channels; and cause a signal, comprising an originator-based first pseudorandom sequence, to be transmitted via the plurality of time-frequency channels and using the plurality of transmission levels, as at least part of an orthogonal frequency division multiplexing (OFDM) second transmission via one or more antennas of the plurality of antennas; and a second node comprising; at least one antenna; and second circuitry configured to process the OFDM second transmission received via the at least one antenna of the second node. - View Dependent Claims (57, 58, 59, 60, 61, 62, 63, 64, 65)
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Specification