公开(公告)号：US20210360732A1

公开(公告)日：2021-11-18

申请号：US17313643

申请日：2021-05-06

Applicant: QUALCOMM Incorporated

Inventor： Yuchul Kim ,  Hwan Joon Kwon ,  Peter Pui Lok Ang ,  Huilin Xu ,  Jay Kumar Sundararajan ,  Krishna Kiran Mukkavilli ,  Yeliz Tokgoz ,  Jing Lei ,  Tingfang Ji ,  Ravi Agarwal ,  Seyong Park

IPC: H04W76/28 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. A communication device, otherwise known as a user equipment (UE) may receive a downlink control information (DCI) message including an indication to enable discontinuous monitoring of a physical downlink control channel (PDCCH). The UE may enable the discontinuous monitoring of the PDCCH based on the received DCI message, and disable monitoring of the PDCCH during a temporal period in which at least one of physical downlink shared channel (PDSCH) reception, downlink reference signal monitoring, uplink reference signal transmissions, and channel reporting is enabled. The UE may thereby experience power saving by disabling monitoring of the PDCCH while still performing other wireless operations during the temporal period. The UE may, as a result, also include features for improvements to wireless communications and, in some examples, may promote high reliability and low latency wireless communications, among other benefits.

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：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：US10790944B2

公开(公告)日：2020-09-29

申请号：US15711826

申请日：2017-09-21

Applicant: QUALCOMM Incorporated

Inventor： Seyong Park ,  Wei Zeng ,  Yi Huang ,  Renqiu Wang ,  Hao Xu ,  Peter Gaal ,  Wanshi Chen ,  Tingfang Ji

IPC: H04L5/00 ,  H04L27/26 ,  G06F17/14 ,  H04B7/0452 ,  H04W72/04

Abstract: Certain aspects of the present disclosure provide techniques for processing reference and data signals for uplink transmission. A method is provided for wireless communications. The method generally includes obtaining different sets of samples for at least one of: a data signal or a reference signal; spreading the different sets of samples for the at least one data signal or reference signal using separate discrete Fourier transform (DFT) processing blocks; interlacing the spreaded sets of samples by assigning the spreaded sets of samples from each of the separate DFT processing blocks to equally spaced tones; and transmitting the at least one data signal or reference signal on the assigned tones in an orthogonal frequency division multiplexed (OFDM) symbol.

公开(公告)号：US10749726B2

公开(公告)日：2020-08-18

申请号：US16193939

申请日：2018-11-16

Applicant: QUALCOMM Incorporated

Inventor： Seyong Park ,  Yi Huang ,  Peter Gaal ,  Renqiu Wang ,  Xiao Feng Wang ,  Sony Akkarakaran ,  Timo Ville Vintola ,  Tao Luo ,  Wei Yang

IPC: H04L27/34 ,  H04L27/26 ,  H04J13/00 ,  H04L27/20

Abstract: Various aspects directed towards generating a reference signal for pi/2-binary phase shift keying (BPSK) modulation are disclosed. In an example, a pi/2-BPSK sequence is selected from a plurality of candidate sequences. A reference signal is then generated based on the selected pi/2-BPSK sequence such that the reference signal is associated with a transmission of data modulated according to a π/2-BPSK modulation.

公开(公告)号：US10701723B2

公开(公告)日：2020-06-30

申请号：US15699687

申请日：2017-09-08

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Hao Xu ,  Wei Zeng ,  Seyong Park ,  Wanshi Chen ,  Peter Gaal ,  Tingfang Ji

IPC: H04W4/00 ,  H04W72/12 ,  H04L1/18 ,  H04L5/00 ,  H04W52/36 ,  H04B7/06 ,  H04W72/04 ,  H04L1/00 ,  H04W76/27

Abstract: A first apparatus may determine a demodulation reference signal (DMRS) sequence based on a mother sequence, map the DMRS sequence to at least a first symbol of a set of resource blocks (RBs) in a transmission, and send a DMRS including the mapped DMRS sequence in the at least one symbol of the set of RBs. A second apparatus may receive information associated with resource allocation, determine a granularity based on the information associated with resource allocation, determine resource allocation based at least in part on the granularity, and receive a signal carried on resources corresponding to the resource allocation.

公开(公告)号：US10667282B2

公开(公告)日：2020-05-26

申请号：US16031897

申请日：2018-07-10

Applicant: QUALCOMM Incorporated

Inventor： Chong Li ,  Jay Kumar Sundararajan ,  Jing Jiang ,  Seyong Park

IPC: H04W72/12 ,  H04B1/713 ,  H04J13/00 ,  H04L1/18 ,  H04B1/692 ,  H04B1/7143 ,  H04W72/04 ,  H04B1/69

Abstract: Aspects of the present disclosure provide a mechanism for utilizing uplink hopping patterns for HARQ transmissions. Each hopping pattern may include a sequence of different frequency resources or a sequence of different scrambling sequences for a user equipment (UE) to utilize over time for HARQ transmissions. Each of the hopping patterns may further be associated with a time index mode in which the hopping pattern is applied to time resources such that each time resource within a consecutive sequence of time resources is mapped to a different frequency resource or scrambling sequence. The base station may select a hopping pattern for a particular UE and transmit an indication of the selected hopping pattern to the UE.

公开(公告)号：US10660056B2

公开(公告)日：2020-05-19

申请号：US16114451

申请日：2018-08-28

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Peter Gaal ,  Xiao Feng Wang ,  Yi Huang ,  Tao Luo ,  Juan Montojo ,  Renqiu Wang ,  Seyong Park

IPC: H04L12/28 ,  H04W56/00 ,  H04L27/26 ,  H04L25/03 ,  H04W76/27 ,  H04L5/00 ,  H04W72/04 ,  H04J1/16

Abstract: Various aspects described herein relate to techniques for timing control with filtering in orthogonal frequency division multiplexing (OFDM)-based wireless communications systems. In an aspect, the method includes determining whether time-domain filtering or frequency-domain filtering is used for a transmission signal waveform, and identifying a time delay based on a determination that the time-domain filtering is used for the transmission signal waveform. The method further includes applying a timing correction based on the identified time delay. The techniques described herein may apply to different communications technologies, including 5th Generation (5G) New Radio (NR) communications technology.

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.