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1. WO2011011572 - IMPROVED PACKET DETECTOR

Publication Number WO/2011/011572
Publication Date 27.01.2011
International Application No. PCT/US2010/042850
International Filing Date 22.07.2010
IPC
H04L 25/03 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
H04B 1/10 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
06Receivers
10Means associated with receiver for limiting or suppressing noise or interference
H04B 3/54 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
3Line transmission systems
54Systems for transmission via power distribution lines
CPC
H04L 25/03866
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
03828Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
03866using scrambling
H04L 27/2602
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
26Systems using multi-frequency codes
2601Multicarrier modulation systems
2602Signal structure
H04L 27/2613
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
26Systems using multi-frequency codes
2601Multicarrier modulation systems
2602Signal structure
261Details of reference signals
2613Structure of the reference signals per se
H04L 27/2614
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
26Systems using multi-frequency codes
2601Multicarrier modulation systems
2614Peak power aspects
H04L 27/2647
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
26Systems using multi-frequency codes
2601Multicarrier modulation systems
2647Arrangements specific to the receiver
H04L 27/3472
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
32Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
34Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
345Modifications of the signal space to allow the transmission of additional information
3461in order to transmit a subchannel
3472by switching between alternative constellations
Applicants
  • AWARE, INC. [US]/[US] (AllExceptUS)
  • TZANNES, Marcos, C. [US]/[US] (UsOnly)
  • KIM, Joon, Bae [KR]/[US] (UsOnly)
  • SANDBERG, Stuart [US]/[US] (UsOnly)
Inventors
  • TZANNES, Marcos, C.
  • KIM, Joon, Bae
  • SANDBERG, Stuart
Agents
  • VICK, Jason, H.
Priority Data
61/227,67322.07.2009US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) IMPROVED PACKET DETECTOR
(FR) DÉTECTEUR DE PAQUET AMÉLIORÉ
Abstract
(EN)
There are several exemplary ways to more efficiently communicate an out-of- domain seed to a receiver - in a first technique, the seed can be indicated in the header portion or data portion of a packet. For example, the header portion of the packet could contain one or more bit fields that indicate the value of the LFSR seed used for the preamble portion of the packet. The receiver would learn the out-of-domain seed after receiving a first out-of-domain packet and decoding the header portion of that packet. After learning the out-of-domain seed, the receiver could send a packet indicating the value of the out-of- domain seed to the local master. The local master could then transmit the value of the out- of-domain seed in the header portion or data portion of a local MAP frame.
(FR)
Il existe plusieurs façons à titre d'exemple de communiquer plus efficacement une valeur de départ hors domaine à un récepteur ; dans une première technique, la valeur de départ peut être indiquée dans la partie en-tête ou partie de données d'un paquet. Par exemple, la partie en-tête du paquet pourrait contenir un ou plusieurs champs de bits qui indiquent la valeur de la valeur de départ LFSR utilisée pour la partie préambule du paquet. Le récepteur pourrait apprendre la valeur de départ hors domaine après réception d'un premier paquet hors domaine et décodage de la partie en-tête de ce paquet. Après avoir appris la valeur de départ hors domaine, le récepteur pourrait envoyer un paquet indiquant la valeur de la valeur de départ hors domaine au maître local. Le maître local pourrait alors transmettre la valeur de la valeur de départ hors domaine dans la partie en-tête ou partie de données d'une trame MAP locale.
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