公开(公告)号：US10887791B2

公开(公告)日：2021-01-05

申请号：US16041100

申请日：2018-07-20

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Tao Luo ,  Peter Gaal ,  Wanshi Chen ,  Joseph Binamira Soriaga ,  Shimman Arvind Patel ,  Alexandros Manolakos

IPC: H04W28/04 ,  H03M13/35 ,  H04L1/00 ,  H04L1/18 ,  H03M13/11

Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a device may determine a nominal coding rate of a communication based at least in part on a modulation and coding scheme (MCS) of the communication; determine whether to use a first base graph or a second base graph for decoding or transmission of the communication, wherein the determination of whether to use the first base graph or the second base graph is based at least in part on the nominal coding rate and a transport block size (TBS) of the communication, and wherein the TBS is based at least in part on a nominal number of resources and the MCS of the communication; and perform the decoding or transmission based at least in part on the determination of whether to use the first base graph or the second base graph. Numerous other aspects are provided.

公开(公告)号：US10863542B2

公开(公告)日：2020-12-08

申请号：US16133163

申请日：2018-09-17

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Xiaoxia Zhang

IPC: H04W74/08 ,  H04W16/14 ,  H04W72/14 ,  H04W28/26 ,  H04W72/04 ,  H04L5/00 ,  H04L5/14

Abstract: Methods, systems, and devices for wireless communications are described. A method may include receiving, from a base station, a pre-grant message indicating that a downlink transmission is available for transmission to a user equipment (UE) on a first radio frequency (RF) spectrum band, and performing a listen-before-talk (LBT) procedure. The UE may then transmit, based on the LBT procedure indicating a clear channel, a channel reservation signal on a second RF spectrum band, and transmit, to the base station, a response to the pre-grant message on the second RF spectrum band. Another method may include a base station transmitting a pre-grant message to the UE, and receiving a response to the pre-grant message on a second RF spectrum band. The base station may then transmit the downlink transmission to the UE using one or more of a set of transmit beams on a first RF spectrum band.

公开(公告)号：US10827476B2

公开(公告)日：2020-11-03

申请号：US16151262

申请日：2018-10-03

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Jing Sun ,  Xiaoxia Zhang ,  Tao Luo

IPC: H04W72/04 ,  H04L1/00 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may determine a control resource set configuration for transmissions using a single carrier waveform. The control resource set configuration may include one or more pilot regions and one or more control channel regions. The UE may monitor one or more of the pilot signal regions to identify pilot signals based at least in part on the control resource set configuration, and decode one or more control signals in the control channel regions based at least in part on the pilot signals. The control signals may be included in a control channel region associated with the pilot signal region or in a shared control channel region.

公开(公告)号：US20200344718A1

公开(公告)日：2020-10-29

申请号：US16857051

申请日：2020-04-23

Applicant: QUALCOMM Incorporated

Inventor： Ozcan Ozturk ,  Xiaoxia Zhang ,  Andrei Dragos Radulescu ,  Jing Sun

IPC: H04W68/00 ,  H04W24/08 ,  H04W72/04 ,  H04W8/20 ,  H04W74/08 ,  H04W16/14 ,  H04W76/11

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for determining a time to stop monitoring a wireless channel for paging information. In some examples, a user equipment (UE) may identify a plurality of paging occasions associated with a wireless channel (e.g., of an unlicensed radio frequency spectrum band) and monitor the wireless channel for paging information from a base station during a first paging occasion of the plurality of paging occasions. The UE may determine a channel occupancy status of the base station with respect to the wireless channel and may determine a time to stop monitoring the wireless channel for paging information. The UE may ignore a remainder of the plurality of paging occasions based on the determined time to stop monitoring the wireless channel.

公开(公告)号：US10797832B2

公开(公告)日：2020-10-06

申请号：US16783983

申请日：2020-02-06

Applicant: QUALCOMM Incorporated

Inventor： Mostafa Khoshnevisan ,  Jing Sun ,  Xiaoxia Zhang

IPC: H04L1/18 ,  H04W24/08 ,  H04W72/04 ,  H04L5/00

Abstract: This disclosure provides systems, methods and apparatus for wireless communication. In one aspect, a multi-transmit-receive point (TRP) approach for hybrid automatic repeat request (HARD) acknowledgment (ACK) feedback using counter downlink assignment indicators (DAIs) (cDAIs) and total DAIs (tDAIs) is provided. For example, some techniques and apparatuses described herein may provide a joint counting method in which cDAIs and tDAIs are implemented and tracked jointly between the TRPs of a multi-TRP group. This may be useful in the ideal backhaul scenario when the multi-TRP group is jointly scheduled, and may be more robust against errors than a separate counting method. Some techniques and apparatuses described herein may provide a separate counting method, in which cDAIs and tDAIs are implemented and tracked separately by the respective TRPs of a multi-TRP group.

公开(公告)号：US20200313932A1

公开(公告)日：2020-10-01

申请号：US16828368

申请日：2020-03-24

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Xiaoxia Zhang ,  Kapil Bhattad ,  Tanumay Datta

IPC: H04L25/02 ,  H04L5/00 ,  H04L27/26 ,  H04W74/08

Abstract: 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.

公开(公告)号：US20200305202A1

公开(公告)日：2020-09-24

申请号：US16811207

申请日：2020-03-06

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Yisheng Xue ,  Jing Sun ,  Yongbin Wei

IPC: H04W74/08 ,  H04W76/10 ,  H04W72/04

Abstract: This disclosure describes methods, devices, and systems for techniques related to random access channel (RACH) operation. A user equipment (UE) may establish a connection with a base station using a random access procedure. Based on a transmission priority or a network parameter, the random access procedure may be a two-step random access procedure or a four-step random access procedure. The described techniques may support physical layer procedures, including resource configurations and communication schemes that may support enhanced signaling capacity. In some examples, the described techniques may include signaling characteristics and resource mappings for two-step random access procedure based on a transmission priority. In other examples, the described techniques may include antenna techniques associated with a four-step random access procedure. The physical layer procedures may include features for improved data rates, increased spectral efficiency and, in some examples, may promote low latency communication associated with random access, among other advantages.

公开(公告)号：US20200305080A1

公开(公告)日：2020-09-24

申请号：US16821930

申请日：2020-03-17

Applicant: QUALCOMM Incorporated

Inventor： Yisheng XUE ,  Xiaoxia Zhang ,  Jing Sun ,  Aleksandar Damnjanovic ,  Yongbin Wei

IPC: H04W52/02 ,  H04W72/00 ,  H04W16/14 ,  H04W74/08 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communication are described. A base station may determine a configuration including a set of signature waveforms for a micro-sleep mode of operation in shared spectrum, and may transmit the configuration to at least one user equipment (UE) served by the base station. Additionally, a UE may receive a configuration including a set of signature waveforms for a micro-sleep mode of operation in shared spectrum. The UE may detect at least one signature waveform of the set of signature waveforms, and in response to detecting the at least one signature waveform, operate in the micro-sleep mode for a period of time.

公开(公告)号：US20200296700A1

公开(公告)日：2020-09-17

申请号：US16802332

申请日：2020-02-26

Applicant: QUALCOMM Incorporated

Inventor： Sungwoo Park ,  Xiaoxia Zhang ,  Tao Luo ,  Mostafa Khoshnevisan ,  Jing Sun ,  Wooseok Nam

IPC: H04W72/04 ,  H04L1/18 ,  H04W24/10

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may operate in a multi-transmission/reception point (TRP) mode, where the multi-TRP mode includes monitoring a plurality of control channels and where each of the plurality of control channels may be associated with a TRP. The UE may operate in a first control channel monitoring state of the multi-TRP mode, where the UE may be configured to monitor a first control channel of a first TRP. The UE may identify an indication to switch from the first control channel monitoring state to a second control channel monitoring state of the multi-TRP mode. The UE may switch, based on the indication, to the second control channel monitoring state, where the UE may be configured to monitor the first control channel of the first TRP and monitor a second control channel of the second TRP.

公开(公告)号：US10779328B2

公开(公告)日：2020-09-15

申请号：US16162227

申请日：2018-10-16

Applicant: QUALCOMM Incorporated

Inventor： Wooseok Nam ,  Tao Luo ,  Jing Sun ,  Jing Jiang ,  Heechoon Lee ,  Peter Gaal

IPC: H04W74/08 ,  H04L5/00 ,  H04B7/06 ,  H04L1/00 ,  H04W72/04 ,  H04W72/10 ,  H04L1/18

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a reference signal preemption scheme associated with one or more reference signal resources being preempted for priority transmissions during a time period. The UE may determine that resources of one or more reference signals have been preempted during the time period and in accordance with the reference signal preemption scheme. The UE may implement a reference signal preemption response scheme that is selected based at least in part on the resources of the one or more reference signals being preempted.