公开(公告)号：WO2020163164A1

公开(公告)日：2020-08-13

申请号：PCT/US2020/016092

申请日：2020-01-31

Applicant: QUALCOMM INCORPORATED

Inventor： LEI, Jing ,  PARK, Seyong ,  HE, Linhai ,  SUNDARARAJAN, Jay Kumar ,  LY, Hung Dinh ,  CHEN, Wanshi ,  GAAL, Peter

IPC: H04W74/00 ,  H04B7/01 ,  H04L27/2607 ,  H04L27/261 ,  H04L5/0091 ,  H04W74/006 ,  H04W74/0833 ,  H04W76/27

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station (BS), a signaling communication that indicates one or more preamble sequence configurations. Each of the preamble sequence configurations may specify a respective plurality of preamble sequence rules for a different random access channel (RACH) procedure type. The UE may generate, based at least in part on a plurality of preamble sequence rules for a preamble sequence configuration of the one or more preamble sequence configurations, a preamble sequence for a RACH communication in a RACH procedure. Numerous other aspects are provided.

公开(公告)号：WO2019195412A1

公开(公告)日：2019-10-10

申请号：PCT/US2019/025570

申请日：2019-04-03

Applicant: QUALCOMM INCORPORATED

Inventor： PARK, Seyong ,  LEI, Jing ,  SORIAGA, Joseph Binamira ,  WANG, Renqiu ,  BHUSHAN, Naga ,  JI, Tingfang

IPC: H04L1/00 ,  H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine that a resource spread multiple access scheme is enabled, wherein the bit and/or symbol level resource spreading happens in time and/or frequency domain through bits or symbol level repetition and spreading. Furthermore, the UE may process bits of codewords and modulated symbols using a set of spreading sequences and a set of scrambling sequences. The UE may transmit the modulated symbols with a discrete-Fourier-transform (DFT)-spread (DFT-s) waveform based at least in part on processing the modulated symbols using the set of spreading sequences and the set of scrambling sequences. Numerous other aspects are provided.

公开(公告)号：WO2019182707A1

公开(公告)日：2019-09-26

申请号：PCT/US2019/018578

申请日：2019-02-19

Applicant: QUALCOMM INCORPORATED

Inventor： LEI, Jing ,  WANG, Renqiu ,  CHEN, Wanshi ,  XU, Huilin ,  TOKGOZ, Yeliz ,  ANG, Peter Pui Lok

IPC: H04W64/00 ,  H04W72/04 ,  G01S5/00

Abstract: Various aspects and features provide waveform design and signaling support that provide and facilitate high accuracy positioning determination by low powered devices (e.g. UEs) in NR and IoT by allowing UEs to request on demand positioning operation support from a base station and the base station to dynamically configure parameters associated with a positioning reference signal (PRS) for transmission to the UEs. A UE may transmit an indication of its positioning requirement and/or capability information to a base station. The base station may configure parameters associated with a positioning reference signal (PRS), for example, a waveform type of the PRS, based on the indication and transmit the PRS to the UE. The UE may receive the PRS having the configured parameters and may perform at least one of UE positioning, ranging, or a UE velocity determination based on the received PRS.

公开(公告)号：WO2019164916A1

公开(公告)日：2019-08-29

申请号：PCT/US2019/018732

申请日：2019-02-20

Applicant: QUALCOMM INCORPORATED

Inventor： PARK, Seyong ,  LEI, Jing ,  WANG, Renqiu ,  SORIAGA, Joseph, Binamira ,  BHUSHAN, Naga ,  JI, Tingfang

IPC: H04J13/16 ,  H04J11/00 ,  H04J13/00

Abstract: Methods, systems, and devices for wireless communications are described that support pairwise cross correlation sequences for non-orthogonal multiple access wireless communications. A user equipment (UE) may receive, from a base station, an indication of a spreading factor and a number of transmitters in a group of non-orthogonal multiple access (NOMA) transmitters configured for concurrent transmissions. The UE may determine, based on the spreading factor and the number of transmitters, a first spreading sequence of a set of spreading sequences from a first codebook, the first spreading sequence having a defined value for pairwise cross correlation with each spreading sequence of the plurality of spreading sequences. The first UE may identify data to be transmitted in an uplink transmission, apply the first spreading sequence to the data to be transmitted in the uplink transmission, and transmit the uplink transmission to the base station.

公开(公告)号：WO2019161074A1

公开(公告)日：2019-08-22

申请号：PCT/US2019/018037

申请日：2019-02-14

Applicant: QUALCOMM INCORPORATED

Inventor： PARK, Seyong ,  LEI, Jing ,  WANG, Renqiu ,  SORIAGA, Joseph Binamira ,  BHUSHAN, Naga ,  JI, Tingfang

IPC: H04J11/00 ,  H04L5/00 ,  H04L1/00

Abstract: Aspects of the present disclosure provide techniques for variable spreading factor codes for non-orthogonal multiple access (NOMA). In an exemplary method, a base station assigns, from a first codebook of N short code sequences of length K, a subset of the short code sequences to a number of user equipments (UEs); receives a signal including uplink data or control signals from two or more of the UEs, wherein a first uplink data or control signal is sent using a first subsequence of one of the assigned short code sequences, and a second uplink data or control signal is sent using a second subsequence of one of the assigned short code sequences or using one of the assigned short code sequences; and decodes each uplink data or control signal in the signal based on the assigned short code sequences and subsequences of the assigned the short code sequences.

公开(公告)号：WO2019158081A1

公开(公告)日：2019-08-22

申请号：PCT/CN2019/074949

申请日：2019-02-13

Applicant: QUALCOMM INCORPORATED ,  LEI, Jing ,  WANG, Renqiu ,  JI, Tingfang ,  SORIAGA, Joseph Binamira ,  CAO, Yiqing ,  PARK, Seyong ,  BHUSHAN, Naga ,  CHEN, Wanshi ,  GAAL, Peter ,  SUNDARARAJAN, Jay Kumar ,  SMEE, John Edward

Inventor： LEI, Jing ,  WANG, Renqiu ,  JI, Tingfang ,  SORIAGA, Joseph Binamira ,  CAO, Yiqing ,  PARK, Seyong ,  BHUSHAN, Naga ,  CHEN, Wanshi ,  GAAL, Peter ,  SUNDARARAJAN, Jay Kumar ,  SMEE, John Edward

IPC: H04L27/36 ,  H04B1/69

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may apply one or more spreading sequences to a set of modulation symbols of a data set to generate spread modulation symbols; apply a scrambling sequence to the spread modulation symbols to generate a set of scrambled symbols; and transmit a waveform based at least in part on the set of scrambled symbols. Numerous other aspects are provided.

公开(公告)号：WO2019108915A2

公开(公告)日：2019-06-06

申请号：PCT/US2018/063281

申请日：2018-11-30

Applicant: QUALCOMM INCORPORATED

Inventor： LEI, Jing ,  SUN, Jing ,  KADOUS, Tamer

IPC: H04L27/00 ,  H04W74/08 ,  H04L5/00 ,  H04W16/14 ,  H04W72/04 ,  H04W72/12

Abstract: Subband based uplink access for new radio (NR.) shared spectrum (NR-SS) is disclosed. A base station performs a listen before talk (LBT) procedure on system allocated subbands of a shared communication channel. The base station determines a first set of candidate subbands that are signaled to a user equipment (UE). The UE performs an LBT procedure on the first set to identify a second set of candidate subbands including the successful LBT subbands of the first set. Aspects of the disclosure provide for managing and refining the subbands for transmissions. A first aspect provides the UE to determine a transmission behavior based on mismatch between the first and second sets. A second aspect provides the first and second sets in handshaking between the base station and UE for refining the eventual transmission set of subbands. A third aspect provides cross-band LBT reporting for further refining subband selection in later slots.

公开(公告)号：WO2019014204A1

公开(公告)日：2019-01-17

申请号：PCT/US2018/041417

申请日：2018-07-10

Applicant: QUALCOMM INCORPORATED

Inventor： LEI, Jing ,  SUN, Jing ,  KADOUS, Tamer

IPC: H04L27/36 ,  H04L27/34 ,  H04B10/532 ,  H04J14/06 ,  H04B7/10 ,  H04B7/0408 ,  H04L27/26

Abstract: Certain aspects of the present disclosure generally relate to wireless communication. More particularly, aspects of the present disclosure provide multiplexing schemes which may be suited for the single carrier waveform. For example, some techniques and apparatuses described herein permit multiplexing of multiple, different data streams without destroying the single-carrier properties of the waveform. Additionally, or alternatively, some techniques and apparatuses described herein may provide unequal error protection, unequal bandwidth allocation, and/or the like as part of the multiplexing schemes. Examples of multiplexing schemes described herein include in-phase/quadrature (I/Q) multiplexing, superposition quadrature amplitude modulation (QAM) based at least in part on layered bit mapping, polarization division multiplexing of QAM with superposition coding, and frequency division multiplexing using UE-specific beams.

公开(公告)号：WO2019014200A1

公开(公告)日：2019-01-17

申请号：PCT/US2018/041413

申请日：2018-07-10

Applicant: QUALCOMM INCORPORATED

Inventor： LEI, Jing ,  SUN, Jing ,  KADOUS, Tamer

IPC: H04L27/36 ,  H04L27/34 ,  H04B10/532 ,  H04J14/06 ,  H04B7/10 ,  H04B7/0408 ,  H04L27/26

Abstract: Certain aspects of the present disclosure generally relate to wireless communication. More particularly, aspects of the present disclosure provide multiplexing schemes which may be suited for the single carrier waveform. For example, some techniques and apparatuses described herein permit multiplexing of multiple, different data streams without destroying the single-carrier properties of the waveform. Additionally, or alternatively, some techniques and apparatuses described herein may provide unequal error protection, unequal bandwidth allocation, and/or the like as part of the multiplexing schemes. Examples of multiplexing schemes described herein include in-phase/quadrature (I/Q) multiplexing, superposition quadrature amplitude modulation (QAM) based at least in part on layered bit mapping, polarization division multiplexing of QAM with superposition coding, and frequency division multiplexing using UE-specific beams.

公开(公告)号：WO2018209124A3

公开(公告)日：2018-11-15

申请号：PCT/US2018/032126

申请日：2018-05-10

Applicant: QUALCOMM INCORPORATED

Inventor： SUN, Jing ,  WANG, Xiao Feng ,  LUO, Tao ,  KADOUS, Tamer ,  AKKARAKARAN, Sony ,  MONTOJO, Juan ,  LEI, Jing

IPC: H04L5/00 ,  H04L27/26

Abstract: Methods, systems, and devices for wireless communication are described for slot structures using guard intervals in a single carrier waveform. Techniques provide for generating a first waveform for control information or reference signal transmissions in a first subset of symbols, and generating a second waveform for data to be transmitted in a second subset of symbols. A combination waveform may be generated based on the first and second waveforms that is transmitted to a receiver, such as by concatenating the first and second waveforms. The first waveform may be generated by appending a guard interval (GI) sequence to a reference signal or control information, and performing a discrete Fourier transform spread frequency division multiplexing (DFT-s-FDM) procedure. The second waveform may be generated by appending the GI to data to be transmitted in each symbol of the second subset of symbols, and performing the DFT-s-FDM procedure.