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 a recipient-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.
655 Citations
99 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 a recipient-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, 12, 13)
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14. 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 a recipient-based first pseudorandom sequence modified by an originator-based second pseudorandom sequence and an originating node index overlay; and transmitting 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 a plurality of antennas of the first node. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. 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 a recipient-based first pseudorandom sequence and an originator-based complex sinusoid; and transmitting 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 a plurality of antennas of the first node, wherein the originator-based complex sinusoid identifies an originator of the OFDM second transmission. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. 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 a recipient-based first pseudorandom sequence, an originator-based pseudorandom sequence, and an originator-based complex sinusoid; and transmitting 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 a plurality of antennas of the first node, wherein the originator-based complex sinusoid identifies an originator of the OFDM second transmission, and wherein a first portion of the OFDM second transmission comprises a first portion of the signal modified by user data associated with the second node, and wherein a second portion of the OFDM second transmission comprises a second portion of the signal that is not modified by the user data. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43)
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44. 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;user data; a recipient-based first pseudorandom sequence, wherein the recipient-based first pseudorandom sequence identifies a recipient of an orthogonal frequency division multiplexing (OFDM) second transmission; an originator-based second pseudorandom sequence that identifies an originating group, associated with the OFDM second transmission, that comprises the first node; and an originator-based complex sinusoid that identifies an originator 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 (45, 46, 47, 48, 49, 50, 51, 52)
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53. 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, associated with the second node, that comprises a recipient-based first pseudorandom sequence; and transmitting 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 a plurality of antennas of the first node, wherein the OFDM second transmission comprises a multi-tone OFDM symbol that comprises at least a portion of the signal modulated at a first range of the plurality of tones, and further comprises another signal, associated with a third node, modulated at a second range of the plurality of tones. - View Dependent Claims (54, 55, 56, 57, 58, 59, 60, 61, 62)
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63. 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 a recipient-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 (64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77)
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78. 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 a recipient-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 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 first pseudorandom sequence. - View Dependent Claims (79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89)
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90. A method comprising:
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receiving, by a first node, a plurality of transmissions from a plurality of other nodes; determining, based at least in part on the plurality of transmissions, a plurality of transmission levels, respectively, for a plurality of time-frequency channels; generating a plurality of recipient-based pseudorandom sequences associated, respectively, with the plurality of other nodes; and transmitting the plurality of recipient-based pseudorandom sequences, 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) transmission via one or more antennas of a plurality of antennas of the first node. - View Dependent Claims (91, 92, 93, 94, 95, 96, 97, 98, 99)
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Specification