公开(公告)号：US11191001B2

公开(公告)日：2021-11-30

申请号：US16189457

申请日：2018-11-13

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho Ryu ,  Navid Abedini ,  Junyi Li ,  Karl Georg Hampel ,  Muhammad Nazmul Islam ,  Sundar Subramanian ,  Jianghong Luo ,  Juergen Cezanne ,  Vasanthan Raghavan

IPC: H04W72/04 ,  H04L5/00 ,  H04W36/32 ,  H04W36/00 ,  H04W36/36 ,  H04W74/08 ,  H04W36/24 ,  H04W88/04

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may initiate handover from one base station to another. The handover procedure may not include random access channel (RACH) transmissions, and thus may be a localized RACH-less handover. The UE may initiate handover to a new base station based on the relative location of the UE and the new base station, some predetermined time, or based on the characteristics of the signals from each base station.

公开(公告)号：US11184848B2

公开(公告)日：2021-11-23

申请号：US16032742

申请日：2018-07-11

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Sumeeth Nagaraja ,  Jianghong Luo ,  Sundar Subramanian ,  Ashwin Sampath

IPC: H04W52/02 ,  H04B7/06 ,  H04B7/08 ,  H04W76/28 ,  H04L5/00 ,  H04W16/28 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communication are described. A base station may identify that data is available to be transmitted to a user equipment (UE) that is operating in a discontinuous reception (DRX) mode. The base station may configure a plurality of UE-specific reference signals for transmission to the UE, each UE-specific reference signal indicating a UE identifier and an availability of data for the UE. The UE may receive the UE-specific reference signal, and identify that data is available for the UE from the base station. The UE may then transmit a beam recovery signal to the base station that includes an identifier for the transmit beam used by the UE to transmit the beam recovery signal. The base station may transmit, using a beam sweeping configuration, the plurality of UE-specific reference signals.

公开(公告)号：US11147120B2

公开(公告)日：2021-10-12

申请号：US16725791

申请日：2019-12-23

Applicant: QUALCOMM INCORPORATED

Inventor： Jianghong Luo ,  Muhammad Nazmul Islam ,  Sumeeth Nagaraja ,  Ashwin Sampath ,  Sundar Subramanian

IPC: G08C17/00 ,  H04W76/28 ,  H04W72/04 ,  H04W72/14 ,  H04W56/00 ,  H04W52/02 ,  H04B7/08 ,  H04B7/06 ,  H04W16/28

Abstract: Methods, systems, and devices for wireless communication are described. A base station may transmit, to a user equipment (UE) operating in a discontinuous reception mode, a wakeup signal indicating whether data is available to be transmitted to the UE, the wakeup signal transmitted using a first set of transmit beams, which may be selected from a periodic beam management procedure, in accordance with a beam sweeping configuration. The base station may receive, from the UE and based at least in part on the wakeup signal, a response signal. The base station may perform, based at least in part on the response signal, further beam update procedures to identify a second set of transmit beams for future transmissions of the wakeup signal and/or for transmission of physical downlink control channel (PDCCH) to the UE.

公开(公告)号：US11109333B2

公开(公告)日：2021-08-31

申请号：US16902132

申请日：2020-06-15

Applicant: QUALCOMM Incorporated

Inventor： Tianyang Bai ,  Muhammad Nazmul Islam ,  Juergen Cezanne ,  Sundar Subramanian ,  Ruhua He ,  Raghu Narayan Challa ,  Alexei Yurievitch Gorokhov ,  Junyi Li

IPC: H04J3/06 ,  H04W56/00 ,  H04W72/04 ,  H04B7/08 ,  H04L5/00 ,  H04B7/06

Abstract: A UE may identify a first indication associated with a first signaling to be received in a time interval and identify a second indication associated with a second signaling to be received in the time interval. The UE may select to receive and receive, in the time interval, at least one of the first signaling or the second signaling based on at least one of the first or second indications. One or more of the first and second indications may be received from a BS or determined by the UE via predefined or other means. A BS may convey indications of the first and/or second signaling. The first and second indications may be transmitted sufficiently before the signaling in an effort to allow the UE to select and tune its receiver beam in the direction of the signaling to be received.

公开(公告)号：US11108441B2

公开(公告)日：2021-08-31

申请号：US16657992

申请日：2019-10-18

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/04 ,  H04B7/0417 ,  H04B7/06 ,  H01Q1/24 ,  H04B7/0404 ,  H04W16/28 ,  H04W28/02 ,  H04W40/08 ,  H04W52/04 ,  H04W88/14

Abstract: A UE may receive, from a base station, a message requesting BSI. The UE may determine a number N of BSI reports to send to the base station, and each BSI report may indicate a beam index corresponding to a beam and a received power associated with the beam. The UE may send, to the base station, N BSI reports based on the message requesting BSI. The UE may receive, from the base station, a set of signals through a set of beams, and determine the received power for each signal of the set of signals received through each beam of the set of beams, each received power may be associated with a beam of the set of beams.

公开(公告)号：US11088747B2

公开(公告)日：2021-08-10

申请号：US15474859

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: H04W4/00 ,  H04B7/06 ,  H04B7/0417 ,  H04B7/08 ,  H04L5/00 ,  H04W72/04 ,  H04W72/12 ,  H04W74/08

Abstract: A first apparatus may transmit, to a user equipment (UE), on a control channel, one or more indications of one or more beam indexes corresponding to one or more beams. The first apparatus may transmit, to the UE, one or more reference signals through the one or more beams corresponding to the one or more beam indexes. The reference signals may be used by the UE to select a best subarray and/or receive combiner for communication with the first apparatus.

公开(公告)号：US11082118B2

公开(公告)日：2021-08-03

申请号：US16557448

申请日：2019-08-30

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Sundar Subramanian ,  Juergen Cezanne ,  Ashwin Sampath ,  Junyi Li

IPC: H04L12/66 ,  H04B7/08 ,  H04B7/06 ,  H04W24/10 ,  H04B7/0408 ,  H04W72/04 ,  H04W72/08

Abstract: Certain aspects of the present disclosure provide various appropriate frame structures, sweep sequences, and procedures that may assist in beam sweeping, tracking and recovery.

公开(公告)号：US11057246B2

公开(公告)日：2021-07-06

申请号：US16848747

申请日：2020-04-14

Applicant: QUALCOMM Incorporated

Inventor： Juergen Cezanne ,  Ruhua He ,  Sundar Subramanian ,  Tao Luo ,  Muhammad Nazmul Islam ,  Junyi Li ,  Raghu Narayan Challa

IPC: H04L25/02 ,  H04B7/08 ,  H04B7/06 ,  H04B7/0456 ,  H04B17/27 ,  H04B17/309 ,  H04B17/382 ,  H04L1/00 ,  H04L5/00 ,  H04B7/0413

Abstract: Aspects of the disclosure relate to a method of operating a scheduled entity for wireless communication with a network. In some aspects, the scheduled entity transmits a message that requests a scheduling entity to transmit at least one reference signal. The scheduled entity obtains channel state information based on the at least one reference signal. The scheduled entity transmits a report that includes the channel state information. In other aspects, the scheduled entity transmits a message that requests a scheduling entity to schedule a reference signal transmission for the scheduled entity. The scheduled entity obtains an assignment of resources for transmission of the reference signal in response to the message. The scheduled entity transmits the reference signal based on the assignment of resources. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US11050474B2

公开(公告)日：2021-06-29

申请号：US16783746

申请日：2020-02-06

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/06 ,  H04B7/0408 ,  H04W72/04 ,  H04W16/28 ,  H04B7/08 ,  H04L5/00

Abstract: Wireless communication techniques that include beam training performed to aid mobile devices in identifying beams for use in communications (e.g., uplink communications) are discussed. A mobile device may transmit to a base station an indication of a level of beamforming reciprocity of the mobile device. A base station/gNB may transmit an indication of one or more transmission beams to be used by the mobile device for uplink wireless communication based on the level of beamforming reciprocity. The one or more transmission beams to be used by the mobile device for uplink communication may include a reciprocal transmission beam. A mobile device not capable of full beamforming reciprocity may determine a transmission beam through uplink beam training. A mobile device may transmit to a base station information using at least one of the one or more transmission beams. Other aspects and features are also claimed and discussed.

公开(公告)号：US10979917B2

公开(公告)日：2021-04-13

申请号：US16056582

申请日：2018-08-07

Applicant: QUALCOMM INCORPORATED

Inventor： Jianghong Luo ,  Navid Abedini ,  Sundar Subramanian ,  Junyi Li ,  Bilal Sadiq ,  Muhammad Nazmul Islam

IPC: H04W24/04 ,  H04B7/06 ,  H04B7/08 ,  H04W76/19 ,  H04W16/28 ,  H04W24/10 ,  H04B7/022

Abstract: A method for communication includes determining whether any of a plurality of communication control beams have failed, identifying at least one active communication control beam in the plurality of communication control beams, and communicating a partial beam pair link (BPL) loss communication on the at least one active communication control beam.