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1. WO2020198304 - SOUNDING REFERENCE SIGNAL WAVEFORM DESIGN FOR WIRELESS COMMUNICATIONS

Publication Number WO/2020/198304
Publication Date 01.10.2020
International Application No. PCT/US2020/024617
International Filing Date 25.03.2020
IPC
H04L 5/00 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
CPC
H04L 25/0226
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
0202Channel estimation
0224using sounding signals
0226sounding signals per se
H04L 27/2605
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
2605Symbol extensions
H04L 5/0007
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
0001Arrangements for dividing the transmission path
0003Two-dimensional division
0005Time-frequency
0007the frequencies being orthogonal, e.g. OFDM(A), DMT
H04L 5/001
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
0001Arrangements for dividing the transmission path
0003Two-dimensional division
0005Time-frequency
0007the frequencies being orthogonal, e.g. OFDM(A), DMT
001the frequencies being arranged in component carriers
H04L 5/0048
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
003Arrangements for allocating sub-channels of the transmission path
0048Allocation of pilot signals, i.e. of signals known to the receiver
H04L 5/0051
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
003Arrangements for allocating sub-channels of the transmission path
0048Allocation of pilot signals, i.e. of signals known to the receiver
0051of dedicated pilots, i.e. pilots destined for a single user or terminal
Applicants
  • QUALCOMM INCORPORATED [US]/[US]
Inventors
  • SUN, Jing
  • ZHANG, Xiaoxia
  • BHATTAD, Kapil
  • DATTA, Tanumay
Agents
  • KARREN, J. Scott
Priority Data
16/828,36824.03.2020US
20194101223328.03.2019IN
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SOUNDING REFERENCE SIGNAL WAVEFORM DESIGN FOR WIRELESS COMMUNICATIONS
(FR) CONCEPTION DE FORME D'ONDE DE SIGNAL SONORE DE RÉFÉRENCE POUR COMMUNICATIONS SANS FIL
Abstract
(EN)
Techniques and devices for wireless communications are described that provide for staggering sounding reference signal (SRS) transmissions in frequency across multiple orthogonal frequency division multiplexing (OFDM) symbols, which may allow multiple UEs to transmit SRS using a common listen-before-talk (LBT) gap for a LBT procedure. The techniques also provide for transmitting an SRS across multiple OFDM symbols using same frequency resources, and an orthogonal cover code (OCC) may be applied to the SRS transmission of each OFDM symbol, which may allow multiple UEs to transmit concurrent SRS using a common LBT gap.
(FR)
L'invention concerne des techniques et des dispositifs de communications sans fil qui assurent des transmissions échelonnées de signal sonore de référence (SRS) en fréquence sur de multiples symboles de multiplexage par répartition orthogonale de la fréquence (OFDM), ce qui peut permettre à de multiples UE de transmettre un SRS en utilisant un intervalle d'accès multiple avec détection de porteuse (LBT) commun pour une procédure LBT. Ces techniques assurent également la transmission d'un SRS sur de multiples symboles OFDM utilisant des ressources de fréquence identique, et un code de couverture orthogonal (OCC) peut être appliqué à la transmission du SRS de chaque symbole OFDM, ce qui peut permettre à de multiples UE de transmettre des SRS concomitants à l'aide d'un espace LBT commun.
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