公开(公告)号：US10779273B2

公开(公告)日：2020-09-15

申请号：US15913718

申请日：2018-03-06

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Xiao Feng Wang ,  Sony Akkarakaran ,  Sumeeth Nagaraja ,  Shengbo Chen ,  Kaushik Chakraborty

IPC: H04W72/04 ,  H04W72/08 ,  H04L5/00 ,  H04B7/08 ,  H04B7/06 ,  H04W52/36 ,  H04W52/42

Abstract: Certain aspects of the present disclosure provide techniques for selecting an uplink (UL) transmit beam by a user equipment (UE). A UE may receive, from a base station (BS), one or more beamformed downlink signals using one or more receive beams. The UE may select an uplink transmit beam based, at least in part, on the one or more beamformed downlink signals. The UE may transmit an uplink signal using the selected uplink transmit beam.

公开(公告)号：US10736063B2

公开(公告)日：2020-08-04

申请号：US16008748

申请日：2018-06-14

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Navid Abedini ,  Junyi Li ,  Bilal Sadiq ,  Chinmay Vaze ,  Sumeeth Nagaraja ,  Juergen Cezanne

IPC: H04W56/00 ,  H04W72/04 ,  H04W52/02

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) being served by a first cell may receive a synchronization signal (SS) block from the first cell. The UE may also receive an SS block from a second cell. The first cell may determine synchronization assistance information for the second cell and transmit the synchronization assistance information to the UE. The UE may use the synchronization assistance information to determine the index for the SS block from the second cell. For example, the synchronization assistance information may indicate that the UE is to use the index of the SS block from the first cell as the index for the SS block from the second cell. Once the index for the SS block from the second cell is determined, the UE may identify the subframe or slot timing used by the second cell and proceed with cell acquisition.

公开(公告)号：US10735078B2

公开(公告)日：2020-08-04

申请号：US16246228

申请日：2019-01-11

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh Ly ,  Tao Luo ,  Sumeeth Nagaraja

IPC: H04B7/06 ,  H04L5/00 ,  H04W76/28 ,  H04B7/08 ,  H04W74/08

Abstract: Certain aspects of the present disclosure provide techniques and apparatus for operations with switching active bandwidth parts (BWPs), such as for radio link monitoring (RLM), beam failure recovery, random access, and/or other operations. As described herein, a UE may be configured with one or more sets of BWPs. The UE may determine/select the uplink and/or downlink BWP to use. For example, the UE can determine to use an active BWP or to switch to another BWP. The UE may use the BWP during operations, such as RLM, beam failure recovery, and/or random access, etc. for monitoring on the downlink and/or for transmitting on the uplink.

公开(公告)号：US20200229266A1

公开(公告)日：2020-07-16

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: 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：US10708902B2

公开(公告)日：2020-07-07

申请号：US16228447

申请日：2018-12-20

Applicant: QUALCOMM Incorporated

Inventor： Wooseok Nam ,  Tao Luo ,  Sony Akkarakaran ,  Makesh Pravin John Wilson ,  Sumeeth Nagaraja ,  Xiao Feng Wang ,  Shengbo Chen

IPC: H04W72/04 ,  H04W16/28 ,  H04L1/00 ,  H04B7/06 ,  H04B7/08 ,  H04L5/00 ,  H04W72/08 ,  H04W72/12 ,  H04W76/10 ,  H04W88/02 ,  H04W76/27

Abstract: Methods, systems, and devices for wireless communications provide for transmission of a beam switch command to a user equipment (UE) via control channel signaling. The UE may establish a connection with a base station using a first transmission beam, receive configuration information configuring the UE to select between a first decoding hypothesis corresponding to downlink control information (DCI) including a bit field including a beam switch command and a second decoding hypothesis corresponding to the DCI not including the bit field, receive a downlink control channel transmission via the first transmission beam, decode the downlink control channel transmission in accordance with the configuration information to obtain decoded DCI, and communicate with the base station based at least in part on the decoded DCI.

公开(公告)号：US10686506B2

公开(公告)日：2020-06-16

申请号：US16053547

申请日：2018-08-02

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  June Namgoong ,  Sony Akkarakaran ,  Xiao Feng Wang ,  Sumeeth Nagaraja ,  Juan Montojo ,  Shengbo Chen ,  Kaushik Chakraborty ,  Wooseok Nam

IPC: H04L5/00 ,  H04W72/04 ,  H04W72/08 ,  H04W88/08 ,  H04B7/06 ,  H04B7/08 ,  H04W16/28 ,  H04W76/27 ,  H04W88/02

Abstract: Aspects of the present disclosure relate to deriving spatial receive parameters for quasi-colocation at a user equipment (UE). An exemplary method generally includes receiving a plurality of beams from a base station in a plurality of coarse directions, determining, based on the plurality of beams, a first spatial colocation parameter, transmitting an indication of a coarse direction associated with a beam having a highest receive strength of the plurality of beams, receiving a plurality of second beams from the base station based on the indication, the plurality of second beams having a narrower beam width than the plurality of beams and covering a beam width of the beam associated with the indicated coarse direction, determining, based on the plurality of second beams, a second spatial colocation parameter, transmitting an indication of the second beam having a highest receive strength, and refining at least one of the first or second spatial colocation parameters.

公开(公告)号：US10680700B2

公开(公告)日：2020-06-09

申请号：US16040178

申请日：2018-07-19

Applicant: QUALCOMM Incorporated

Inventor： Kaushik Chakraborty ,  Tao Luo ,  Wooseok Nam ,  Sumeeth Nagaraja ,  Sony Akkarakaran ,  Makesh Pravin John Wilson ,  Xiao Feng Wang ,  Shengbo Chen ,  Juan Montojo

IPC: H04B7/08 ,  H04B7/06 ,  H04B7/0408 ,  H04L27/26 ,  H04W76/18 ,  H04W72/04 ,  H04W28/18

Abstract: Aspects of the present disclosure relate to techniques that may enhance radio link failure (RLF) procedures. In some cases, a UE may perform radio link monitoring (RLM) based on reference signals (RS) transmitted using a first set of beams, perform beam failure recovery (BFR) monitoring based on transmissions using a second set of beams, and adjust one or more radio link failure (RLF) parameters based on both the RLM monitoring and the BFR monitoring.

公开(公告)号：US10588042B2

公开(公告)日：2020-03-10

申请号：US16007732

申请日：2018-06-13

Applicant: QUALCOMM Incorporated

Inventor： Sumeeth Nagaraja ,  Arvind Vardarajan Santhanam ,  Tao Luo

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

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus, e.g., a base station, maybe configured to obtain UE information of a UE. The apparatus may configure one or more parameters of one or more measurement gaps based on the UE information, and transmit, to the UE, measurement gap information on the one or more measurement gaps. The measurement gap information may include the one or more configured parameters. In another aspect of the disclosure, a UE maybe configured to transmit, to a base station, UE information of the UE. The UE may receive a measurement request from the base station in response to the UE information, where the measurement request includes configuration information for one or more measurement gaps based on the transmitted UE information. The UE may measure one or more reference signals during at least one measurement gap.

公开(公告)号：US10512080B2

公开(公告)日：2019-12-17

申请号：US15895789

申请日：2018-02-13

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Sony Akkarakaran ,  Sumeeth Nagaraja ,  Shengbo Chen ,  Xiao feng Wang ,  Kaushik Chakraborty

IPC: H04W72/04 ,  H04W72/06 ,  H04L1/00 ,  H04L5/00 ,  H04B7/06 ,  H04L1/18 ,  H04L25/02 ,  H04W52/16 ,  H04W52/26 ,  H04B7/0456 ,  H04B7/08

Abstract: A base station may make more efficient use of resources by transmitting data in a control region of a slot in addition to a data region. In order to avoid performance loss, the base station may adjust the data transmission in the control region in comparison to a data transmission in a data region and may signal an indication to a UE to assist the UE in receiving the data transmission in the control region. An apparatus for wireless communication at the UE receives the indication from the base station regarding the data transmission in the control region and uses the indication to perform rate matching or demodulation of the data transmission in the control region. The indication may indicate any of a different MCS/rank/TPR, a reduced MCS/rank/TPR, an MCS/rank/TPR delta, a control span for a group of UEs, and a starting symbol for the data transmission. The indication may also indicate that there is no data transmitted on resources in the control region.

公开(公告)号：US20190312700A1

公开(公告)日：2019-10-10

申请号：US16405442

申请日：2019-05-07

Applicant: QUALCOMM INCORPORATED

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Xiao feng Wang ,  Sony Akkarakaran ,  Wooseok Nam ,  Sumeeth Nagaraja ,  Kaushik Chakraborty ,  Shengbo Chen

IPC: H04L5/00 ,  H04W76/15 ,  H04L27/26

Abstract: Wireless communications systems and methods related to reusing long-term evolution (LTE) resources for new radio (NR) system operations are provided. A UE receives, from a base station, a reference signal configuration of a first network of a long-term evolution (LTE) radio access technology (RAT). The UE and the base station are associated with a second network of another RAT. The reference signal configuration indicates at least a number of antenna ports associated with a reference signal of the first network. The UE determines a location of the reference signal associated with the reference signal configuration and receives, from the base station, a data signal of the second network based at least on the location of the reference signal of the first network.