公开(公告)号：US11576206B2

公开(公告)日：2023-02-07

申请号：US16326290

申请日：2017-09-22

Applicant: Qualcomm Incorporated

Inventor： Peng Cheng ,  Vinay Chande ,  Arumugam Chendamarai Kannan ,  Chirag Patel

IPC: H04W74/08 ,  H04W72/12 ,  H04W52/02 ,  H04W8/00 ,  H04W24/10 ,  H04W52/24 ,  H04W72/14 ,  H04W74/00 ,  H04W76/27

Abstract: Methods, systems, and devices for wireless communication are described. A base station may determine a measurement scheme or uplink mode and then transmit an indication of the scheme or uplink mode to an associated user equipment (UE). The base station may identify a set of hidden nodes for the UE and configure the UE for autonomous or grant-based uplink transmissions accordingly. A UE may initiate a channel clearance scheme by transmitting a first channel clearance signal (e.g., a request-to-send message), which may include a UE identifier before transmitting an uplink message in the unlicensed radio frequency spectrum band. In response, the base station may transmit a second channel clearance signal (e.g., a clear-to-send message). In some cases, the second channel clearance signal may include control information or may be transmitted at a power level that is based on a characteristic of the UE.

公开(公告)号：US11533143B2

公开(公告)日：2022-12-20

申请号：US16963453

申请日：2019-02-06

Applicant: Chao Wei ,  Qiaoyu Li ,  Peng Cheng ,  QUALCOMM Incorporated

Inventor： Chao Wei ,  Qiaoyu Li ,  Peng Cheng

IPC: H04L5/00 ,  H04W52/32 ,  H04W72/12

Abstract: The present disclosure relates to wireless communications implemented by a user equipment (UE). The UE may receive a demodulation reference signal (DMRS) sequence grouping from a base station, select a DMRS sequence for transmission of DMRS based on the DMRS sequence grouping, and transmit uplink (UL) data along with the DMRS for UL transmission using contention-based protocol, wherein the DMRS is transmitted based on the selected DMRS sequence.

公开(公告)号：US11476999B2

公开(公告)日：2022-10-18

申请号：US16757978

申请日：2018-11-16

Applicant: QUALCOMM incorporated

Inventor： Peng Cheng ,  Keiichi Kubota ,  Peter Pui Lok Ang ,  Linhai He

IPC: H04L5/00 ,  H04W76/30 ,  H04W76/27 ,  H04W8/24 ,  H04W28/20 ,  H04W72/04 ,  H04W74/08

Abstract: Techniques and apparatus for a control plane design for bandwidth part (BWP) in new radio (NR) are provided. One technique includes sending information with an indication of a BWP capability of a user equipment (UE) to a base station (BS). A configuration from the BS indicating a set of BWPs available to use for communication is received in response to the indication. Communications are performed on at least one of the set of BWPs. Another technique includes receiving information having an indication of a BWP capability of the UE. A configuration indicating a set of BWPs available for the UE to use for communication is determined. The configuration is sent to the UE.

公开(公告)号：US20220248349A1

公开(公告)日：2022-08-04

申请号：US17597794

申请日：2019-08-15

Applicant: QUALCOMM Incorporated

Inventor： Peng Cheng ,  Huichun Liu

IPC: H04W56/00 ,  H04W24/10 ,  H04W36/08 ,  H04W76/30

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer storage media, for wireless communication by a user equipment (UE). In one aspect, the UE is configured to select, by a user equipment (UE), a list of synchronization signal block (SSB) frequencies included in at least one message as a selected list of SSB frequencies. The UE is further configured to determine, based on whether a first frequency included in the selected list of SSB frequencies is an overlapping carrier or a non-overlapping carrier, whether to perform a new radio (NR) early measurement operation for the first frequency. The UE is also configured to identify a SSB-based measurement timing configuration (SMTC) based on a determination to perform the NR early measurement operation for the first frequency, and to initiate the NR early measurement operation for the first frequency using the identified SMTC.

公开(公告)号：US11343794B2

公开(公告)日：2022-05-24

申请号：US16465072

申请日：2018-01-09

Applicant: QUALCOMM Incorporated

Inventor： Huichun Liu ,  Xipeng Zhu ,  Peng Cheng ,  Ruiming Zheng ,  Gavin Bernard Horn ,  Luis F. B. Lopes

IPC: H04W68/02 ,  H04W4/06

Abstract: Aspects of the present disclosure describe receiving paging messages in wireless communications. A user equipment (UE) can receive one or more parameters for descrambling non-cell specific paging messages. The UE can receive, from one or multiple base stations, a non-cell specific paging message. The UE can descramble the non-cell specific paging message based at least in part on the one or more parameters.

公开(公告)号：US11283497B2

公开(公告)日：2022-03-22

申请号：US16599018

申请日：2019-10-10

Applicant: QUALCOMM Incorporated

Inventor： Yu Zhang ,  Chao Wei ,  Peng Cheng ,  Neng Wang ,  Jilei Hou

IPC: H04B7/0456 ,  H04L1/00 ,  H04W16/10 ,  H04L1/06 ,  H04L1/18 ,  H04B7/06 ,  H04B7/0452 ,  H04W16/28 ,  H04B7/0426

Abstract: Certain aspects of the present disclosure provide methods and apparatus for linear precoding in full-dimensional MIMO (FD-MIMO) systems. According to aspects, an eNB may compress a larger number of antenna elements to a smaller number of antenna ports. The eNB may use a port precoding matrix to transmit reference signals to a UE, receive feedback regarding CSI based on the reference signals, and transmit data to the UE, based on a mapping of multiple data layers and mapping of antenna ports to the physical antenna elements. Further, aspects include performing elevation beamforming by dynamically forming one or more vertical sectors based on UE feedback in the elevation domain.

公开(公告)号：US11177923B2

公开(公告)日：2021-11-16

申请号：US16630110

申请日：2018-06-25

Applicant: QUALCOMM Incorporated

Inventor： Peng Cheng ,  Wanshi Chen ,  Hao Xu ,  Umesh Phuyal ,  Alberto Rico Alvarino ,  Chao Wei

IPC: H04L5/00 ,  H04W72/04

Abstract: In an example, a method of wireless communication of a base station may include assigning, by the base station, one or more resources to a group comprising a plurality of UEs that includes a first UE. The method may include receiving, by the base station from the first UE, a message on the one or more assigned resources. The message may include a cyclic redundancy check (CRC) scrambled with a group identifier for the group comprising the plurality of UEs. The message may include an indication of a UE identifier for the first UE within the group. The message may include a DMRS, where the indication of the UE identifier is represented by a sequence of the DMRS.

公开(公告)号：US11153820B2

公开(公告)日：2021-10-19

申请号：US16344448

申请日：2018-01-03

Applicant: Qualcomm Incorporated

Inventor： Sumeeth Nagaraja ,  Tao Luo ,  Aleksandar Damnjanovic ,  Karl Georg Hampel ,  Keiichi Kubota ,  Andrei Radulescu ,  Haitong Sun ,  Ozcan Ozturk ,  Peng Cheng ,  Linhai He

IPC: H04W52/02 ,  H04W72/04 ,  H04W74/00 ,  H04W72/12 ,  H04W74/08

Abstract: Techniques are described for wireless communication. A method for wireless communication at a user equipment (UE) includes receiving, by the UE, a first transmission on a beam over a radio frequency spectrum during a first time interval. The first transmission includes an indication of a subsequent physical downlink control channel (PDCCH) transmission on the beam. The indication includes information about a PDCCH in a second time interval subsequent to the first time interval. The method also includes configuring a power saving state of the UE based at least in part on the indication. A method for wireless communication at a network access device includes transmitting the first transmission to at least one UE, and transmitting the PDCCH during the second time interval.

公开(公告)号：US20210289488A1

公开(公告)日：2021-09-16

申请号：US16341224

申请日：2016-12-07

Applicant: QUALCOMM Incorporated

Inventor： Peng Cheng ,  Chirag Patel ,  Vinay Chande ,  Tamer Kadous

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

Abstract: Methods, systems, and devices for wireless communication are described. Various autonomous uplink control channel configurations may be used for unscheduled uplink transmissions. For example, a user equipment (UE) may initiate an unscheduled uplink transmission and may identify an autonomous uplink control channel configuration for the uplink transmission. The UE may transmit control information and data during an initial transmission time interval of a transmission opportunity according to the control channel configuration, where the control channel configuration control may include a number of different waveforms and payload configurations. For example, an autonomous uplink control channel configuration may include control information frequency division multiplexed or time division multiplexed with data and transmitted in one or more frequency interlaces. In some cases, the control channel configuration may include a symbol period for a clear-to-send signal, and one or more symbol periods used a guard period before the data transmission.

公开(公告)号：US11115939B2

公开(公告)日：2021-09-07

申请号：US16500749

申请日：2017-05-12

Applicant: QUALCOMM Incorporated

Inventor： Peng Cheng ,  Keiichi Kubota ,  Gavin Bernard Horn ,  Aleksandar Damnjanovic ,  Tao Luo ,  Linhai He

IPC: H04W52/36 ,  H04W24/10 ,  H04W52/14 ,  H04W52/34 ,  H04W52/42

Abstract: New radio (NR) power headroom report (PHR) design for millimeter wave (mmWave) deployment is discussed. The power control process for mmWave may include beam-specific periodic PHR reporting and user equipment (UE)-specific event-trigger PHR reporting. The periodic PHR reporting may either provide a single PHR that includes power headroom information for each of the serving beams, or the UE may be configured to measure and report PHR for different beams in different slots. When reporting a single PHR with power headroom information for multiple serving beams, a beam index may be included in the reserved bits of the PHR. For the event-trigger PHR, the PHR reported based on a detected event trigger may provide power headroom information only for the current serving beam, or for all serving beams.