公开(公告)号：US11791965B2

公开(公告)日：2023-10-17

申请号：US16964100

申请日：2019-01-15

Applicant: QUALCOMM INCORPORATED

Inventor： Keiichi Kubota ,  Peng Cheng ,  Masato Kitazoe ,  Peter Pui Lok Ang ,  Tao Luo ,  Heechoon Lee ,  Hung Dinh Ly ,  Prashanth Haridas Hande

IPC: H04L5/00 ,  H04W76/27 ,  H04W48/12 ,  H04W48/14 ,  H04W72/21 ,  H04W72/23

CPC classification number: H04L5/0053 ,  H04W48/12 ,  H04W48/14 ,  H04W72/21 ,  H04W72/23 ,  H04W76/27

Abstract: Certain aspects of the present disclosure relate to communication systems, and more particularly, to system information acquisition over bandwidth parts (BWPs) in communications system operating according to new radio (NR) technologies. In an exemplary method, a user equipment (UE) receives system information (SI) via a transmission in a downlink (DL) bandwidth part (BWP) of a system bandwidth and transmits, to a serving base station (BS) and in response to receiving the SI, an indication that the UE has completed SI acquisition.

公开(公告)号：US20230328759A1

公开(公告)日：2023-10-12

申请号：US18005024

申请日：2020-10-01

Applicant: QUALCOMM Incorporated

Inventor： Huilin Xu ,  Peng Cheng

IPC: H04W72/25 ,  H04W76/27

CPC classification number: H04W72/25 ,  H04W76/27 ,  H04W92/18

Abstract: Techniques described provide for a wireless network to establish and implement periodic and aperiodic sidelink gaps. One implementation may include transmitting, by a first user equipment (UE), a sidelink configuration message. The sidelink configuration message may indicate a capability of the first UE to support a sidelink periodic gap and a sidelink aperiodic gap. A message may be received by the first UE indicating whether the first UE is allowed to request a gap according to one or more of the indicated capabilities. The first UE may transmit a sidelink information message comprising an absolute radio frequency channel number (AR-FCN) and an associated gap list. An RRC reconfiguration message may also be received by the first UE having and updated gap list. Other aspects and features are also claimed and described.

公开(公告)号：US11665624B2

公开(公告)日：2023-05-30

申请号：US17041628

申请日：2019-04-11

Applicant: Qualcomm Incorporated

Inventor： Peng Cheng ,  Huichun Liu

IPC: H04W48/10 ,  H04W36/00 ,  H04J11/00 ,  H04W56/00

CPC classification number: H04W48/10 ,  H04J11/0073 ,  H04W36/0058 ,  H04W36/00835 ,  H04W56/001

Abstract: A wireless device may receive a first synchronization signal block (SSB) in a radio frequency band of a first cell of a neighbor base station, and report a physical cell identifier (PCI) for the first cell to a serving base station. The serving base station may identify, based on the PCI report, whether a radio frequency band of the first SSB is in or off a synchronization raster, and determine whether to instruct the UE to report a global cell identifier (CGI) for the neighbor base station (e.g., CGI for the neighbor cell) based on the identification. The wireless device may identify CGI based system information obtained from the neighbor cell, system information obtained from a master cell associated with the neighbor base station, system information obtained from CGI broadcast from the neighbor cell, or system information requested from the neighbor cell using dedicated resources, based on the instruction.

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.