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1. WO2022005677 - SCRAMBLING SEQUENCES FOR REQUEST-TO-SEND (RTS) AND CLEAR-TO-SEND (CTS) FRAMES

Publication Number WO/2022/005677
Publication Date 06.01.2022
International Application No. PCT/US2021/035374
International Filing Date 02.06.2021
IPC
H04L 25/03 2006.1
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
H04W 28/06 2009.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
28Network traffic or resource management
02Traffic management, e.g. flow control or congestion control
06Optimising, e.g. header compression, information sizing
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 27/2603
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
2603Signal structure ensuring backward compatibility with legacy system
H04L 27/2617
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
2615Reduction thereof using coding
2617using block codes
H04L 69/08
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
69Application independent communication protocol aspects or techniques in packet data networks
08Protocols for interworking or protocol conversion
H04L 69/22
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
69Application independent communication protocol aspects or techniques in packet data networks
22Header parsing or analysis
Applicants
  • QUALCOMM INCORPORATED [US]/[US]
Inventors
  • YANG, Lin
  • KIM, Youhan
  • TIAN, Bin
Agents
  • PARADICE, William L., III
  • LI, Yipeng
  • HALBERT, Michael J.
  • LAMBERT, Brian K.
  • QUICK, Michael A.
  • HILL, Travis J.
Priority Data
17/335,24301.06.2021US
63/045,18628.06.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) SCRAMBLING SEQUENCES FOR REQUEST-TO-SEND (RTS) AND CLEAR-TO-SEND (CTS) FRAMES
(FR) SÉQUENCES DE BROUILLAGE POUR TRAMES REQUEST-TO-SEND (RTS) ET CLEAR-TO-SEND (CTS)
Abstract
(EN) This disclosure provides systems, methods, and apparatuses for wireless communication that can be used to reduce the peak-to-average power ratio (PAPR) of data transmissions by increasing the degree of randomness with which data is scrambled for transmission over a wireless medium. In some implementations, a transmitting device may determine a scrambler seed value that includes at least 11 bits, where at least one of the 7 least significant bits (LSBs) of the scrambler seed value has a non-zero value. The transmitting device may generate a scrambling sequence based on the scrambler seed value and a polynomial, may construct a physical layer convergence protocol (PLCP) protocol data unit (PPDU) that includes a multi-user (MU) request-to-send (RTS) frame and the scrambler seed value, may scramble one or more portions of the PPDU based on the scrambling sequence; and may transmit the PPDU over a wireless medium.
(FR) Cette invention concerne des systèmes, des procédés et des appareils pour la communication sans fil qui peuvent être utilisés pour réduire le rapport valeur de crête-valeur moyenne (PAPR) de transmissions de données en augmentant le degré d'aléatoire avec lequel les données sont brouillées pour la transmission sur un support sans fil. Dans certaines mises en œuvre, un dispositif de transmission peut déterminer une valeur de départ de brouilleur qui comprend au moins 11 bits, où au moins l'un des 7 bits les moins significatifs (LSB) de la valeur de départ de brouilleur a une valeur non nulle. Le dispositif d'émission peut générer une séquence de brouillage basée sur la valeur de départ de brouilleur et un polynôme, peut construire une unité de données de protocole (PPDU) du protocole de convergence de la couche physique (PLCP) qui comprend une trame de demande d'émission (RTS) multi-utilisateur (MU) et la valeur de départ de brouilleur, peut brouiller une ou plusieurs parties de la PPDU sur la base de la séquence de brouillage; et peut transmettre la PPDU sur un support sans fil.
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