公开(公告)号：US10039076B2

公开(公告)日：2018-07-31

申请号：US15443449

申请日：2017-02-27

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Sundar Subramanian ,  Tingfang Ji ,  Yu Zhang ,  Navid Abedini ,  Bilal Sadiq ,  Ashwin Sampath

IPC: H04W64/00 ,  H04W72/04 ,  H04W88/08 ,  H04W88/02 ,  H04B7/024 ,  H04L5/00

CPC classification number: H04W64/006 ,  H04B7/024 ,  H04B7/0617 ,  H04B7/063 ,  H04L5/0035 ,  H04L5/0091 ,  H04W72/0413 ,  H04W72/042 ,  H04W88/02 ,  H04W88/08

Abstract: Antenna ports on wireless devices may be QCL. QCL antenna ports may be useful in improving channel statistics related to the antenna ports. UEs and base stations may be able to determine candidate QCL ports, transmit information identifying the candidate QCL ports, and receive feedback indicating whether the candidate QCL ports are QCL at the receiving device such as a UE or a base station.

公开(公告)号：US20180139036A1

公开(公告)日：2018-05-17

申请号：US15713225

申请日：2017-09-22

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Navid Abedini ,  Juergen Cezanne ,  Sundar Subramanian ,  Bilal Sadiq ,  Ashwin Sampath ,  Junyi Li

IPC: H04L7/04 ,  H04W56/00 ,  H04W52/36 ,  H04J1/02

CPC classification number: H04L7/041 ,  H04J1/02 ,  H04L5/001 ,  H04L5/0048 ,  H04L27/2614 ,  H04L27/2621 ,  H04W52/36 ,  H04W56/001 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/21 ,  Y02D70/22

Abstract: Methods, systems, and devices for wireless communication are described. Synchronization signals may be transmitted using a set of phase offsets over different component carriers or using a single component carrier for each antenna port. For example, a base station may identify a set of synchronization signals (e.g., a set of primary synchronization signals (PSSs)) to be transmitted over one or multiple component carriers. In some cases, each PSS may be associated with a different component carrier, and the base station may apply a different phase offset to each PSS when transmitting the set of PSSs on the component carriers. In some examples, the base station may transmit the PSSs on the component carriers using a different antenna port for each component carrier.

公开(公告)号：US20180083767A1

公开(公告)日：2018-03-22

申请号：US15603372

申请日：2017-05-23

Applicant: QUALCOMM Incorporated

Inventor： Bilal Sadiq ,  Juergen Cezanne ,  Tao Luo

IPC: H04L7/04 ,  H04L7/10

CPC classification number: H04L7/048 ,  H04L1/004 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0061 ,  H04L7/10

Abstract: Methods, systems, and devices for wireless communication are described. A base station may identify a transport block for transmission that includes an information component and an error detection code. The base station may transmit a first encoded message during a first transmission time. The first encoded message may be obtained by encoding the transport block cyclically shifted a first bit length. The base station may transmit a second encoded message during a second transmission time. The second encoded message may be obtained by encoding the transport block cyclically shifted a second bit length. The relative time distance between the first and second transmission times may convey an indication of the difference between the first bit length and the second bit length.

公开(公告)号：US20170288832A1

公开(公告)日：2017-10-05

申请号：US15357791

申请日：2016-11-21

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Sundar Subramanian ,  Tao Luo ,  Juergen Cezanne ,  Bilal Sadiq ,  Junyi Li

IPC: H04L5/00 ,  H04W72/04

CPC classification number: H04L5/0048 ,  H04W52/36 ,  H04W72/04 ,  H04W88/02 ,  H04W88/08

Abstract: Methods, systems, and devices for wireless communication are described. A base station may identify a sounding reference signal (SRS) configuration for user equipment (UE). The base station may transmit an SRS grant message to a UE indicating the SRS configuration. An indication of SRS parameters may be included in the SRS grant message, and may include the SRS parameters or a location of the SRS parameters. That is, SRS parameters may be transmitted in a control channel with the SRS grant message or may be separately sent in a data channel as indicated by the indication of SRS parameters. In some cases, SRS parameters may be determined based on previously received UE feedback regarding channel conditions or power limitations. Alternatively, the base station may make its own environment measurements or assign SRS parameters autonomously. The UE may signal SRS transmissions to the base station according to the SRS grant message.

公开(公告)号：US20170279553A1

公开(公告)日：2017-09-28

申请号：US15270879

申请日：2016-09-20

Applicant: QUALCOMM Incorporated

Inventor： Bilal Sadiq ,  Tao Luo ,  Juergen Cezanne ,  Navid Abedini ,  Krishna Kiran Mukkavilli ,  Muhammad Nazmul Islam ,  Sundar Subramanian ,  Ashwin Sampath

IPC: H04J11/00 ,  H04W56/00

CPC classification number: H04J11/0073 ,  H04J11/0069 ,  H04L25/03866 ,  H04L27/261 ,  H04L27/2675 ,  H04W56/001

Abstract: Methods, systems, and devices for wireless communication are described. Some examples provide for identifying a primary synchronization signal (PSS) sequence of a synchronization subframe, determining, for the synchronization subframe, an extended synchronization signal (ESS) sequence based at least in part on the PSS sequence and transmitting the synchronization subframe. Other examples provide for generating an ESS sequence for a synchronization subframe to be communicated to a UE, scrambling the ESS sequence based at least in part on cell-specific information associated with the base station and transmitting, to the UE, the scrambled ESS sequence in the synchronization subframe.

公开(公告)号：US09247412B2

公开(公告)日：2016-01-26

申请号：US14677197

申请日：2015-04-02

Applicant: QUALCOMM Incorporated

Inventor： Saurabha Rangrao Tavildar ,  Junyi Li ,  Libin Jiang ,  Bilal Sadiq

IPC: H04W8/00 ,  H04W72/04 ,  H04W56/00 ,  H04W48/08 ,  H04B7/155 ,  H04W24/10 ,  H04B7/04 ,  H04W88/04

CPC classification number: H04W8/005 ,  H04B7/0417 ,  H04B7/155 ,  H04W24/10 ,  H04W48/08 ,  H04W56/001 ,  H04W72/042 ,  H04W88/04 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162 ,  Y02D70/21 ,  Y02D70/446

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives discovery resource information from a base station, sends a discovery signal based on the discovery resource information, and receives from at least one user equipment (UE) a request for relaying with the base station based on the discovery signal. The apparatus may also receive a discovery signal from a relay, and send to the relay a request for relaying with a base station based on the discovery signal. The apparatus may further receive a discovery signal from each of a plurality of relays, determine to select one of the plurality of relays based on the discovery signal from each relay, and send to a selected relay a request for relaying with a base station based on the discovery signal when one of the plurality of relays is determined to be selected.

公开(公告)号：US12149314B2

公开(公告)日：2024-11-19

申请号：US18330121

申请日：2023-06-06

Applicant: QUALCOMM INCORPORATED

Inventor： Muhammad Nazmul Islam ,  Bilal Sadiq ,  Ashwin Sampath ,  Sundar Subramanian ,  Junyi Li ,  Vasanthan Raghavan

IPC: H04L5/00 ,  H04B7/0456 ,  H04B7/06 ,  H04W16/28 ,  H04W24/10 ,  H04W72/04 ,  H04W72/044 ,  H04W88/02

Abstract: Methods, systems, and devices for wireless communication are described. A network device, such as a base station, may transmit a request message to a user equipment (UE). The request message may include a request for the UE to transmit a set of sounding reference signals (SRSs). The set of SRSs may include two (or more) beamformed signals. The network device may receive the set of SRSs according to the request message. The network device may identify, based on a co-phasing parameter associated with the two (or more) beamformed signals, an antenna port precoder configuration to use for communicating with the UE.

公开(公告)号：US11974321B2

公开(公告)日：2024-04-30

申请号：US16282614

申请日：2019-02-22

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Bilal Sadiq ,  Navid Abedini ,  Heechoon Lee ,  Tao Luo

IPC: H04W74/08 ,  H04B7/0413 ,  H04L5/00 ,  H04L27/26 ,  H04W24/08 ,  H04W56/00 ,  H04W72/04 ,  H04W72/044 ,  H04W72/14 ,  H04W72/23 ,  H04W74/0833 ,  H04W80/02

CPC classification number: H04W74/0833 ,  H04L5/0051 ,  H04L27/2602 ,  H04L27/2666 ,  H04W24/08 ,  H04W56/001 ,  H04W72/046 ,  H04W72/23 ,  H04W80/02 ,  H04B7/0413 ,  H04L27/26025

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may perform a random access (RACH) procedure based on a selected synchronization signal block (SSB). During this RACH procedure, a base station may transmit physical downlink control channel (PDCCH) messages for UE RACH message handling. To receive PDCCH signaling for RACH Messages 2, 3, or 4 (Msg 2/3/4), the UE may identify a set of time resources used by the base station for transmitting SSBs that are not quasi-co-located (QCL) with the selected SSB. The UE may identify a Msg 2/3/4 search space that does not overlap with this identified set of resources, and may monitor this identified search space. The search space may correspond to a modified remaining minimum system information (RMSI) search space indicated by the base station, or a valid RMSI search space not indicated by the base station.

公开(公告)号：US11888771B2

公开(公告)日：2024-01-30

申请号：US15969928

申请日：2018-05-03

Applicant: QUALCOMM Incorporated

Inventor： Juergen Cezanne ,  Jianghong Luo ,  Sundar Subramanian ,  Muhammad Nazmul Islam ,  Bilal Sadiq ,  Junyi Li

IPC: H04W72/04 ,  H04W72/12 ,  H04W24/10 ,  H04L5/00 ,  H04W72/044 ,  H04B7/06 ,  H04B7/08 ,  H04W72/23

CPC classification number: H04L5/0048 ,  H04B7/0695 ,  H04B7/088 ,  H04L5/0057 ,  H04W72/046 ,  H04W72/23

Abstract: Certain aspects of the present disclosure provide techniques for beam refinement. A base station provides information regarding what transmit beams are used to transmit different reference signal (RS) resources. In some cases, the information indicates whether a same transmit beam is used to transmit a set of RS resources (e.g., symbol, sub-symbol, or frequency resources) or whether different transmit beams are used to transmit the set of RS resources.

公开(公告)号：US11791882B2

公开(公告)日：2023-10-17

申请号：US15474829

申请日：2017-03-30

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Tao Luo ,  Juergen Cezanne ,  Sundar Subramanian ,  Ashwin Sampath ,  Bilal Sadiq ,  Junyi Li

IPC: H04B7/06 ,  H04B7/0417 ,  H04B7/08 ,  H04W72/21 ,  H04W72/23 ,  H04L5/00 ,  H04W74/08

CPC classification number: H04B7/0639 ,  H04B7/0417 ,  H04B7/0617 ,  H04B7/0621 ,  H04B7/0695 ,  H04B7/088 ,  H04L5/0048 ,  H04L5/0051 ,  H04W72/21 ,  H04W72/23 ,  H04W74/0833

Abstract: A first apparatus may communicate with a user equipment (UE) through an active beam. The first apparatus may transmit, to the UE, information indicating a periodicity at which control information is to be communicated on a control channel through a control-information beam. The first apparatus may communicate, with the UE, the control information on the control channel through the control-information beam at the periodicity. Further, the first apparatus may receive a request to change the active beam, which may indicate a beam index corresponding to a second beam, and the first apparatus may change the active beam to the second beam corresponding to the beam index indicated by the request.