Apex Standards Claim Construction


Patent: US9973361B2
Filed: 2009-08-21
Issued: 2018-05-15
Patent Holder: (Original Assignee) Applied Transform LLC     (Current Assignee) Ax Wireless LLC
Inventor(s): Joon Bae KIM, Marcos C. Tzannes

Title: Transmitter method and apparatus for variable header repetition in a wireless OFDM network

Abstract: Method and apparatus for use within a wireless OFDM network that transmits a first packet type and a second packet type. The first packet type has a header field with two parts with each part comprising a different set of header bits. The two parts of the header field are transmitted using two OFDM symbols. The second packet type has a header field with four parts with the first and second parts comprising the same first set of header bits and the third and the fourth part comprising the same second set of header bits. The four parts of the header field are transmitted using four OFDM symbols. The second packet type provides more reliable transmission than the first packet type.

The First Claim: 1. A wireless OFDM (Orthogonal Frequency Division Multiplexing) transceiver comprising: a wireless OFDM communications transmitter operable to generate a first packet type comprising a first header field, wherein the first header field comprises two parts, a first part comprising a first set of header bits of the first header field and a second part comprising a second set of header bits of the first header field, wherein the first set of header bits of the first header field is different than the second set of header bits of the first header field; and an encoder and a modulator operable to generate a first OFDM symbol followed by a second OFDM symbol, wherein the first OFDM symbol is used to transmit the first part of the first header field and the second OFDM symbol is used to transmit the second part of the first header field; the wireless OFDM communications transmitter further operable to transmit the first packet type over a wireless communication channel, the wireless OFDM communications transmitter further operable to generate a second packet type comprising a second header field, wherein the second header field comprises four parts, a first part comprising a first set of header bits of the second header field, a second part comprising a second set of header bits of the second header field, a third part comprising a third set of header bits of the second header field and a fourth part comprising a fourth set of header bits of the second header field, wherein the first set of header bits of the second header field is the same as the second set of header bits of the second header field, wherein the third set of header bits of the second header field is the same as the fourth set of header bits of the second header field, the encoder and the modulator further operable to generate a first OFDM symbol followed by a second OFDM symbol followed by a third OFDM symbol followed by a fourth OFDM symbol, wherein the first OFDM symbol is used to transmit the first part of the second header field, the second OFDM symbol is used to transmit the second part of the second header field, the third OFDM symbol is used to transmit the third part of the second header field, the fourth OFDM symbol is used to transmit the fourth part of the second header field, wherein the second set of header bits of the second header field transmitted using the second OFDM symbol are transmitted in a different order than the first set of header bits of the second header field transmitted using the first OFDM symbol, wherein the fourth set of header bits of the second header field transmitted using the fourth OFDM symbol are transmitted in a different order than the third set of header bits of the second header field transmitted using the third OFDM symbol, and the wireless OFDM communications transmitter further operable to transmit the second packet type over the wireless communication channel.


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Reference Claim Element / Subject Matter Feature Meaning Claim Construction & Interpretation
[1] 1 .

A wireless OFDM ( Orthogonal Frequency Division Multiplexing [1]
Frequency Division Multiplexing [1] [Meaning 1] modulation
[Meaning 2] frequency
[Meaning 3] multiplex
[Meaning 4] modulated
[Meaning 5] frequency division
[Meaning 6] multiple access
[Meaning 7] division multiplex
[Meaning 8] fourier transform
[Meaning 9] multiplex modulation
[Meaning 10] division multiplex access of the frequency
[Meaning 11] frequency division multiplex access of the spectrum
[Meaning 12] multiple access multiple access of the spectrum
[Interpretation 1] frequency division multiplex of the carrier frequency domain of the multi carrier multi access system
[Interpretation 2] division multiplex of the frequency and time domain with frequency multiplex access
[2] ) transceiver [2] transceiver [2] [Meaning 1] device
[Meaning 2] system
[Meaning 3] apparatus
[Meaning 4] transmitter
[Meaning 5] communications system
[Meaning 6] transceiver system
[Meaning 7] system apparatus
[Meaning 8] wireless communications device
[Meaning 9] system comprising an apparatus
[Meaning 10] system for transmitting data packets
[Meaning 11] transmitter and receiver system system
[Meaning 12] system for transmitting packet data communications
[Meaning 13] network of the present invention further
[Meaning 14] network comprising one or more wireless devices
[Interpretation 1] base station operable to transmit packet types over wireless communication channels of different bandwidth and different modulation schemes the wireless of the base station
[Interpretation 2] wireless communications device operable to communicate over wireless communication channels using of frequency division multiplex of the symbols and
[Interpretation 3] network comprising one or more wireless nodes each of the nodes
[3] comprising (for wireless communications comprising, system comprising at least, comprising the following components, comprising at least the following, in an electronic device that comprises) : a wireless OFDM communications transmitter [3] OFDM communications transmitter [3] [Meaning 1] processor
[Meaning 2] transmitter
[Meaning 3] controller
[Meaning 4] transceiver
[Meaning 5] interface
[Meaning 6] communications transmitter
[Meaning 7] packet generator
[Meaning 8] header generator
[Meaning 9] packet generation module
[Meaning 10] frequency division multiplex communications transmitter
[Meaning 11] of of communications transmitter comprising an encode module
[Interpretation 1] wireless communications transmitter operable to transmit packet types over the wireless communication channel and comprising an encode and modulate module
[Interpretation 2] packet generation module operable to generate packet types comprising header fields comprising header bits and further
[Interpretation 3] packet generation module comprising at least one processor and at least one memory and
[Interpretation 4] wireless communications transmitter comprising at least one of an encode and mod mod der
[Interpretation 5] frequency division multiplex communication transmitter comprising an encode and modulator and an encode modulator
[Interpretation 6] communication interface operable to receive packet data from an application layer processor and
[Interpretation 7] communication interface operable to receive packet data data packets and an interleaver
[Interpretation 8] orthogonal frequency division multiplex access wireless of of communication transmitter further
[4] operable to generate (encode data to generate, generate packet types comprising, receive data and generate, transmit data packets of, transmit over an optical channel, receive from an external source, transmit over the wireless communication channel) a first packet type [4] packet type [4] [Meaning 1] packet
[Meaning 2] type
[Meaning 3] payload
[Meaning 4] protocol
[Meaning 5] package type
[Meaning 6] data type
[Meaning 7] wireless packet type
[Meaning 8] type of packet
[Meaning 9] packet type further
[Meaning 10] packet type of data
[Meaning 11] packet type comprising header information
[Meaning 12] packet type of an ip packet
[Meaning 13] data packet type of the data packets
[Meaning 14] payload type of packets of the first type
[Interpretation 1] data packet type comprising at least one of an audio signal and an image signal and the first data packet type further
[Interpretation 2] header field of at least one of the first packet type and the first packet type not
[5] comprising a first header field [5] header field [5] [Meaning 1] header
[Meaning 2] field
[Meaning 3] part
[Meaning 4] heading
[Meaning 5] heading field
[Meaning 6] payload field
[Meaning 7] field header
[Meaning 8] first header field
[Meaning 9] packet header field
[Meaning 10] and second header field
[Meaning 11] field comprising first header field
[Meaning 12] header field and an information field
[Meaning 13] payload followed by the first header field
[Meaning 14] field header of the first packet type
[Interpretation 1] header field and an information field comprising information for the first packet type and an identifier associated with the first packet type
[Interpretation 2] packet header field followed by an end of the first packet type
[Interpretation 3] header field and payload data following the first of header field
[Interpretation 4] field comprising first header bits of the first header field
[6] , wherein the first header field [5] comprises (further comprises at least, comprises header bits in, of the packet comprises, has the form of, is divided into exactly, comprises an octet divided into, has an initial format comprising) two parts , a first part comprising a first set of header bits [6] header bits [6] [Meaning 1] bits
[Meaning 2] header
[Meaning 3] bytes
[Meaning 4] data
[Meaning 5] head bits
[Meaning 6] payload bits
[Meaning 7] data bits
[Meaning 8] the header bits
[Meaning 9] header bits indicating the length
[Meaning 10] bits of the header field
[Meaning 11] data bits and an end bit
[Meaning 12] first header bits of the header bits
[Meaning 13] payload bits and first set of header bits
[Meaning 14] header bits and no second set of header bits
[Interpretation 1] data bits and an additional set of non data header bits
[Interpretation 2] payload bits and first set of header bits of the first
[Interpretation 3] header bits and not the second set of header bits
[7] of the first header field [5] and a second part comprising a second set of header bits [6] of the first header field [5] , wherein the first set of header bits [6] of the first header field [5] is different than the second set of header bits [6] of the first header field [5] ; and an encoder [7] encoder [7] [Meaning 1] encode
[Meaning 2] coder
[Meaning 3] encoding
[Meaning 4] interleaver
[Meaning 5] scrambler
[Meaning 6] encode generator
[Meaning 7] encoding device
[Meaning 8] interlace generator
[Meaning 9] encode and decoder
[Meaning 10] encoding an element
[Meaning 11] encoding and modulation unit
[Meaning 12] antenna and encode logic
[Meaning 13] encode and encode modulator
[Meaning 14] antenna comprising an encode generator
[Interpretation 1] apparatus for transmitting wireless of of the packet type comprising an encode generator
[Interpretation 2] at least one of an encode and modulator or an encode modulator
[8] and a modulator [8] modulator [8] [Meaning 1] mapper
[Meaning 2] demodulator
[Meaning 3] modem
[Meaning 4] transmitter
[Meaning 5] modulator further
[Meaning 6] modulator that are
[Meaning 7] transmitter modulator further
[Meaning 8] modulated signal generator
[Meaning 9] mod for transmitter
[Meaning 10] modulator comprising an interleaver
[Meaning 11] modulated of the transmitter
[Meaning 12] transmitter of the modulator
[Meaning 13] mod mod is further
[Meaning 14] modulator comprising an encode modulator
[Interpretation 1] modulated modulator operable to modulate the first header field in the first packet type and further being
[Interpretation 2] modulator coupled to the wireless of of the multiplex communications transmitter and
[Interpretation 3] modulation operable to generate the first packet type comprising the modulation further
[Interpretation 4] modulation module wherein the encode module and the modulator are
[9] operable to generate a first OFDM symbol [9] OFDM symbol [9] [Meaning 1] symbol
[Meaning 2] part
[Meaning 3] first
[Meaning 4] data symbol
[Meaning 5] frequency symbol
[Meaning 6] optical of symbol
[Meaning 7] first of the symbol
[Meaning 8] symbol of of modulation
[Meaning 9] one of the symbols
[Meaning 10] an of symbol sequence
[Meaning 11] symbol of of the fm
[Meaning 12] sequence of first of the symbols
[Meaning 13] followed by an of symbol and
[Meaning 14] and second first of symbol sequence
[Interpretation 1] modulated signal comprising an encoded header field and an encoded data field wherein the first modulated signal comprises at least one of the symbols
[Interpretation 2] sub sub carrier frequency of the first packet type followed by at least one first of symbol and
[Interpretation 3] packet type comprising the first header field followed by first of an orthogonal frequency division multiplex symbol
[Interpretation 4] modulated signal comprising an encoded first packet comprising the first of the symbol
[Interpretation 5] packet type modulated signal comprising at least one first of domain symbol
[Interpretation 6] symbol followed by the first header field followed by the first symbol
[Interpretation 7] symbol followed by an inverted first of the first symbol
[10] followed (which is then followed, that is immediately followed, in time domain followed, at least partially followed, followed by and followed, that is preceded and followed, preceded by and then followed) by a second OFDM symbol [9] , wherein the first OFDM symbol [9] is used to transmit (transmit header bits of, carry information corresponding to, be transmitted to transmit, the transmit at least, trans mu mu ate, carry the payload field and, comprise the first part of) the first part of the first header field [5] and the second OFDM symbol [9] is used to transmit the second part of the first header field [5] ; the wireless OFDM communications transmitter [3] further operable to transmit the first packet type [4] over a wireless communication channel [10] communication channel [10] [Meaning 1] channel
[Meaning 2] link
[Meaning 3] network
[Meaning 4] medium
[Meaning 5] interface
[Meaning 6] communications channel
[Meaning 7] transmission medium
[Meaning 8] access interface
[Meaning 9] optical communications link
[Meaning 10] or optical channel
[Meaning 11] communication frequency band
[Meaning 12] one or more channels
[Meaning 13] channel to another transceiver
[Meaning 14] channel to an access point
[Interpretation 1] carrier frequency band and to transmit the first packet type over the wireless carrier frequency band in an overlapping manner
[Interpretation 2] air interface to an access point operable to receive the first packet type over the wireless air interface
[11] , the wireless OFDM communications transmitter [3] further operable to generate a second packet type [4] comprising a second header field [5] , wherein the second header field [5] comprises four parts , a first part comprising a first set of header bits [6] of the second header field [5] , a second part comprising a second set of header bits [6] of the second header field [5] , a third part comprising a third set of header bits [6] of the second header field [5] and a fourth part comprising a fourth set of header bits [6] of the second header field [5] , wherein the first set of header bits [6] of the second header field [5] is the same as the second set of header bits [6] of the second header field [5] , wherein the third set of header bits [6] of the second header field [5] is the same as the fourth set of header bits [6] of the second header field [5] , the encoder [7] and the modulator [8] further operable to generate a first OFDM symbol [9] followed by a second OFDM symbol [9] followed by a third OFDM symbol [9] followed by a fourth OFDM symbol [9] , wherein the first OFDM symbol [9] is used to transmit the first part of the second header field [5] , the second OFDM symbol [9] is used to transmit the second part of the second header field [5] , the third OFDM symbol [9] is used to transmit the third part of the second header field [5] , the fourth OFDM symbol [9] is used to transmit the fourth part of the second header field [5] , wherein the second set of header bits [6] of the second header field [5] transmitted (that have been transmitted, of the packet transmitted, to be transmitted by, transmitted in second part, in the second part transmitted, and the third header field transmitted, transmitted using the first and transmitted) using the second OFDM symbol [9] are transmitted in a different order than the first set of header bits [6] of the second header field [5] transmitted using the first OFDM symbol [9] , wherein the fourth set of header bits [6] of the second header field [5] transmitted using the fourth OFDM symbol [9] are transmitted in a different order than the third set of header bits [6] of the second header field [5] transmitted using the third OFDM symbol [9] , and the wireless OFDM communications transmitter [3] further operable to transmit the second packet type [4] over the wireless communication channel [10] .