CA2475442A1 - Systems and methods for high rate ofdm communications - Google Patents

Systems and methods for high rate ofdm communications Download PDF

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Publication number
CA2475442A1
CA2475442A1 CA002475442A CA2475442A CA2475442A1 CA 2475442 A1 CA2475442 A1 CA 2475442A1 CA 002475442 A CA002475442 A CA 002475442A CA 2475442 A CA2475442 A CA 2475442A CA 2475442 A1 CA2475442 A1 CA 2475442A1
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Canada
Prior art keywords
communication
communication parameters
packet
transmitting
parameters
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Granted
Application number
CA002475442A
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French (fr)
Other versions
CA2475442C (en
Inventor
Marcos C. Tzannes
Dongjun Lee
Todor Cooklev
Colin Lanzl
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Intel Corp
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Individual
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Priority to CA2743822A priority Critical patent/CA2743822C/en
Publication of CA2475442A1 publication Critical patent/CA2475442A1/en
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Publication of CA2475442C publication Critical patent/CA2475442C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2602Signal structure
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0028Formatting
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2602Signal structure
    • H04L27/2605Symbol extensions, e.g. Zero Tail, Unique Word [UW]
    • H04L27/2607Cyclic extensions
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055Physical resource allocation for ACK/NACK
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/14Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1438Negotiation of transmission parameters prior to communication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/24Negotiation of communication capabilities
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/02Arrangements for optimising operational condition
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/08Testing, supervising or monitoring using real traffic
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18Negotiating wireless communication parameters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18Negotiating wireless communication parameters
    • H04W28/22Negotiating communication rate
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10Small scale networks; Flat hierarchical networks
    • H04W84/12WLAN [Wireless Local Area Networks]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607Details of the supervisory signal
    • H04L1/1671Details of the supervisory signal the supervisory signal being transmitted together with control information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signaling for the administration of the divided path
    • H04L5/0094Indication of how sub-channels of the path are allocated
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/04Error control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/06Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information

Abstract

Messages transmitted between a receiver (150) and a transmitter (240) are us ed to maximize a communication data rate. In particular, a multicarrier modulation system uses messages that are sent from the receiver to the transmitter to exchange one or more sets of optimized communication parameters. The transmitter then stores these communication parameters and when transmitting to that particular receiver, the transmitter utilizes the stored parameters in an effort to maximize the data rate to that receiver. Likewise, when the receiver receives packets from that particular transmitte r, the receiver can utilize the stored communication parameters for reception.< /SDOAB>

Claims (11)

1. A method for optimizing communication in a wireless multicarrier communication system comprising:
transmitting a packet at a first rate;
determining communication parameters based on the received packet;
transmitting an acknowledgement comprising the communication parameters; and commencing communication based on the communication parameters.
2. The method of claim 1, further comprising determining a header field indicating the communication parameters being used for communication.
3. The method of claim 1, further comprising demodulating and decoding received data based on information in a header field.
4. The method of claim 1, further comprising switching to transmitting at a second rate if the packet is note received.
5. The method of claim 1, further comprising transmitting an acknowledgement indicating the packet was successfully received and to continue communications based on the communication parameters.
6. The method of claim 1, wherein the communication system comprises one or more stations, access points and legacy stations.
7. The method of claim 1, wherein an extended rate extended signal field identifies the communication parameters.
8. A system for optimizing communication in a wireless multicarrier communication system comprising:
means for transmitting a packet at a first rate;

means for determining communication parameters based on the received packet;
means for transmitting an acknowledgement comprising the communication parameters; and means for commencing communication based on the communication parameters.
9. A protocol that optimizes communication in a wireless multicarrier communication system comprising:
transmitting a packet at a first rate;
determining communication parameters based on the received packet;
transmitting an acknowledgement comprising the communication parameters; and commencing communication based on the communication parameters.
10. An information storage media comprising information that optimizes communication in a wireless multicarrier communication system comprising:
information that transmits a packet at a first rate;
information that determines communication parameters based on the received packet;
information that transmits an acknowledgement comprising the communication parameters; and information that commences communication based on the communication parameters.
11. A system that optimizes communications in a wireless multicarrier communication system comprising:
a transceiver that transmits a packet at a first rate;
a communication parameter determination module that determines communication parameters based on the received packet; and a second transceiver that transmits an acknowledgement comprising the communication parameters, wherein the transceivers commence communication based on the communication parameters.
CA2475442A 2002-03-08 2003-03-07 Systems and methods for high rate ofdm communications Expired - Fee Related CA2475442C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2743822A CA2743822C (en) 2002-03-08 2003-03-07 Systems and methods for high rate ofdm communications

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US36321802P 2002-03-08 2002-03-08
US60/363,218 2002-03-08
PCT/US2003/007007 WO2003077457A1 (en) 2002-03-08 2003-03-07 Systems and methods for high rate ofdm communications

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA2743822A Division CA2743822C (en) 2002-03-08 2003-03-07 Systems and methods for high rate ofdm communications

Publications (2)

Publication Number Publication Date
CA2475442A1 true CA2475442A1 (en) 2003-09-18
CA2475442C CA2475442C (en) 2011-08-09

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CA2743822A Expired - Fee Related CA2743822C (en) 2002-03-08 2003-03-07 Systems and methods for high rate ofdm communications

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Country Status (7)

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US (21) US7522514B2 (en)
EP (4) EP2385666B1 (en)
CN (6) CN102761511B (en)
AU (1) AU2003217994A1 (en)
CA (2) CA2475442C (en)
HK (1) HK1206165A1 (en)
WO (1) WO2003077457A1 (en)

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