公开(公告)号：US20210195625A1

公开(公告)日：2021-06-24

申请号：US17124189

申请日：2020-12-16

Applicant: QUALCOMM Incorporated

Inventor： Huilin Xu ,  Peter Pui Lok Ang ,  Jing Lei

IPC: H04W72/12

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a hybrid scheduling configuration that includes a dynamic scheduling indication, a preconfiguration including initial scheduling parameters, and a set of preconfigured occasions for communicating data with a base station. The UE may monitor for the dynamic scheduling indication based on the initial scheduling parameters and the set of the preconfigured occasions. For instance, the UE may monitor for the dynamic scheduling indication during periodic occasions, monitor for the dynamic scheduling indication using a different periodicity, or monitor based on a time interval (e.g., a slot) during which both the preconfigured occasion and the dynamic scheduling indication occur. In any case, the UE may communicate with the base station after receiving the dynamic scheduling indication, where data may be transmitted to, or received from, the base station in accordance with the hybrid scheduling configuration.

公开(公告)号：US20210092734A1

公开(公告)日：2021-03-25

申请号：US17028806

申请日：2020-09-22

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Suhas Subramanya Kowshik ,  Joseph Binamira Soriaga ,  Jing Lei ,  Seyong Park ,  Naga Bhushan ,  Yi Huang ,  Peter Gaal

IPC: H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify that an uplink control information (UCI) payload satisfies a threshold size condition. The UE may map the UCI payload to an uplink control sequence. The UE may transmit a physical uplink control channel (PUCCH) that include the uplink control sequence to a base station. The uplink control sequence may be representative of the UCI payload. The base station may receive the PUCCH that includes the uplink control sequence from the UE. The base station may also determine the UCI payload by associating the uplink control sequence with a corresponding sequence index of the one or more sets of uplink control sequences.

公开(公告)号：US10945294B2

公开(公告)日：2021-03-09

申请号：US16803888

申请日：2020-02-27

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Wanshi Chen ,  Joseph Binamira Soriaga ,  Krishna Kiran Mukkavilli ,  Enoch Shiao-Kuang Lu ,  Seyong Park ,  Yisheng Xue

IPC: H04L12/28 ,  H04W74/08 ,  H04W74/00 ,  H04W72/04 ,  H04W72/12 ,  H04L5/10 ,  H04L5/00 ,  H04W76/27 ,  H04W56/00 ,  H04L1/18 ,  H04L1/00 ,  H04J1/16

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may generate an uplink random access message, including a random access preamble and an uplink shared channel resource unit, of a two-step random access procedure. The UE may identify configuration information for uplink control information (UCI) multiplexing. The UE may identify a trigger for inclusion of UCI with the uplink random access message. The UE may multiplex the UCI and a reference signal with the uplink shared channel resource unit and map the uplink control information to resource elements in the uplink shared channel resource unit based on a priority of the uplink control information and a location of resource elements to which the reference signal is mapped. The UE may transmit the uplink random access message comprising the uplink control information and an indication of the used UCI configuration to the base station.

公开(公告)号：US20210058912A1

公开(公告)日：2021-02-25

申请号：US17076613

申请日：2020-10-21

Applicant: QUALCOMM Incorporated

Inventor： Alberto Rico Alvarino ,  Wanshi Chen ,  Seyed Ali Akbar Fakoorian ,  Peter Gaal ,  Shimman Arvind Patel ,  Madhavan Srinivasan Vajapeyam ,  Renqiu Wang ,  Jing Lei ,  Hao Xu

IPC: H04W72/04 ,  H04W72/00 ,  H04L5/00 ,  H04B7/0456

Abstract: Various techniques for narrowband communications in a wireless communications network are provided. Narrowband communications may be transmitted using a single resource block (RB) of a number of RBs used for wideband communications. In order to provide for efficient device discovery and synchronization using narrowband communications, a synchronization signal, such as a primary synchronization signal (PSS) or secondary synchronization signal (SSS), may be transmitted within the single resource block. The synchronization signal may be transmitted, for example, using multiple orthogonal frequency division multiplexing (OFDM) symbols within the single RB. A common reference signal (CRS) may also be present in the single resource block, which may puncture the synchronization signal, in some examples. In other examples, the synchronization signal may be mapped to non-CRS symbols of the single resource block.

公开(公告)号：US10904868B2

公开(公告)日：2021-01-26

申请号：US16374553

申请日：2019-04-03

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Seyong Park ,  Joseph Binamira Soriaga ,  Naga Bhushan ,  Tingfang Ji

IPC: H04W72/04 ,  H04L27/20 ,  H04L5/00 ,  H04L27/26

Abstract: Aspects of the disclosure relate to methods and an apparatus for transmitting a signal in a multi-layer hybrid resource spread multiple access (RSMA) system. A non-orthogonal multiple access (NOMA) user equipment (UE) demultiplexes a stream of bits into a plurality of layers, encodes each layer with a different coding rate, modulates each layer of encoded bits with a different modulation scheme, and spreads and scrambles each layer of modulated symbols with a different spreading code and a corresponding different scrambling code. Thereafter, the NOMA UE permutes the plurality of layers having spread and scrambled symbols into a plurality of interleaved layers, scales and phase rotates each interleaved layer with a different scaling factor and a corresponding different phase rotating factor, sums the scaled and phase rotated symbols, maps the summed symbols onto a set of allocated resources, and transmits the mapped symbols via the set of resources.

公开(公告)号：US10893547B2

公开(公告)日：2021-01-12

申请号：US16743673

申请日：2020-01-15

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Hung Dinh Ly ,  Yi Huang ,  Peter Gaal ,  Joseph Binamira Soriaga ,  Amir Aminzadeh Gohari ,  Wanshi Chen ,  Linhai He ,  Tingfang Ji

IPC: H04W74/08 ,  H04W72/04 ,  H04L5/00

Abstract: A user equipment (UE) may be configured to receive configuration information from a base station, and the configuration information may indicate at least two different random access channel (RACH) request configuration parameters that each is associated with a respective radio resource control (RRC) state. The UE may be further configured to generate a first message associated with a two-step RACH procedure including a preamble and a payload, the payload including data on an uplink data channel and at least one reference signal. The UE may be further configured to transmit the first message to the base station using at least one of the at least two different RACH request configuration parameters that corresponds to an RRC state of the UE. The preamble may be transmitted on a first set of resources associated with a RACH occasion, and the payload may be transmitted on a second set of resources.

公开(公告)号：US10856185B2

公开(公告)日：2020-12-01

申请号：US15663461

申请日：2017-07-28

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Taesang Yoo ,  Xiaoxia Zhang ,  Jing Sun ,  Tamer Kadous

IPC: H04W28/00 ,  H04W28/26 ,  H04W72/04 ,  H04W74/08 ,  H04W16/14 ,  H04W72/08 ,  H04W72/10 ,  H04W74/00

Abstract: Channel reservation systems and methods are disclosed herein, which schedule transmissions on a shared radio medium that is shared by a plurality of licensed network operators. In embodiments, priority access is pre-assigned to the network and the method determines whether to send a transmission based at least on the transmitter's priority class as compared to another transmitter's priority class and to which transmitter the time slot of a signal is dedicated. In embodiments, priority access may not be preassigned to the network and pre-grants may be used in conjunction with CR-Ts and CR-Rs to determine whether a transmitter transmits.

公开(公告)号：US20200077402A1

公开(公告)日：2020-03-05

申请号：US16546140

申请日：2019-08-20

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Gabi Sarkis ,  Joseph Binamira Soriaga ,  Wanshi Chen ,  Seyong Park ,  Ying Wang ,  Naga Bhushan

IPC: H04W72/04 ,  H04L5/10 ,  H04L5/00 ,  H04W76/27 ,  H04L1/00

Abstract: Methods, systems, and devices for wireless communications are described in which multiple access (MA) signatures may be used in non-orthogonal multiple access (NOMA) transmissions to provide differentiation between multiple concurrent NOMA transmission that use common time, frequency, and spatial resources. Systematic extension of the pool size of MA signatures can be obtained by the grouping of UE-specific spreading codes and the application of group-specific scrambling code, where the generation of scrambling code can depend at least on a cell ID and UE group ID. The MA signature may be based at least in part on a UE specific spreading code and a group level scrambling code. The UE-specific spreading code may be one of a set of codes associated with a particular scrambling code. The scrambling code may be one of a number of orthogonal or non-orthogonal scrambling codes that are associated with one or more UE parameters.

公开(公告)号：US10470048B2

公开(公告)日：2019-11-05

申请号：US15641780

申请日：2017-07-05

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Taesang Yoo ,  Seyed Ali Akbar Fakoorian ,  Siddhartha Mallik ,  Juan Montojo ,  Jing Lei

IPC: H04W16/14 ,  H04L5/14 ,  H04W72/04 ,  H04W74/00 ,  H04W74/02 ,  H04W74/08 ,  H04L5/00

Abstract: Wireless communications systems and methods related to dynamic time-division duplexing (TDD) and self-contained subframe-based communications in a shared spectrum are provided. A first wireless communication device communicates a control information communication protection request over a shared spectrum. The shared spectrum is shared by a plurality of network operating entities based on priorities. The first wireless communication device is associated with a first network operating entity of the plurality of network operating entities. The first wireless communication device communicates, with a second wireless communication device associated with the first network operating entity, control information in a first link direction during a transmission opportunity (TXOP) in the shared spectrum. The first wireless communication device communicates, with the second wireless communication device, data in a second link direction during the TXOP.

公开(公告)号：US20190238367A1

公开(公告)日：2019-08-01

申请号：US16263250

申请日：2019-01-31

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Renqiu Wang ,  Seyong Park ,  Naga Bhushan ,  Jay Kumar Sundararajan ,  Joseph Binamira Soriaga ,  Tingfang Ji

IPC: H04L25/02 ,  H04L27/227 ,  H04J13/00

CPC classification number: H04L25/0204 ,  H03M13/1505 ,  H04J13/0014 ,  H04J13/0033 ,  H04J13/0059 ,  H04L27/227

Abstract: Methods, systems, and devices for wireless communications are described that provide for concurrent reference signal transmissions using common resources, such as demodulation reference signal (DMRS) transmissions, from a number of non-orthogonal multiple access (NOMA) transmitters. Different transmitters may use different sequences for reference signal transmissions, which may allow a receiver, such as a wireless base station, to decode the reference signal transmissions for each NOMA transmitter and perform channel estimation for each NOMA transmitter. The reference signal transmissions may be asynchronous with a bounded timing offset or quasi-synchronous, and the reference signal sequence selection may provide for relatively reliable channel estimation and coherent demodulation.