公开(公告)号：US20220123892A1

公开(公告)日：2022-04-21

申请号：US17561643

申请日：2021-12-23

Applicant: QUALCOMM Incorporated

Inventor： Sumeeth NAGARAJA ,  Tao LUO ,  Sony AKKARAKARAN ,  Alexandros MANOLAKOS

IPC: H04L5/00 ,  H04W36/00

Abstract: Various aspects of the disclosure relate to techniques associated with the acquisition of reference signals. In some aspects, a network may request a user equipment (UE) to measure a timing difference between neighbor cells and use that information to generate a CSI-RS configuration. The network sends the CSI-RS configuration to the UE to enable the UE to acquire a CSI-RS from a neighbor cell. In some aspects, a network may send timing-related information to a neighbor cell and the neighbor cell uses that information to transmit a CSI-RS.

公开(公告)号：US20210288728A1

公开(公告)日：2021-09-16

申请号：US17333456

申请日：2021-05-28

Applicant: QUALCOMM Incorporated

Inventor： Wooseok NAM ,  Sony AKKARAKARAN ,  Tao LUO ,  Bilal SADIQ ,  Muhammad Nazmul ISLAM ,  Makesh Pravin JOHN WILSON ,  Sumeeth NAGARAJA ,  Xiao Feng WANG

IPC: H04B17/309 ,  H04W76/27 ,  H04B7/0417 ,  H04L5/00 ,  H04W24/10 ,  H04W24/02

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for radio link monitoring reference signal (RLM-RS) determination using communications systems operating according to new radio (NR) technologies. For example, a method for wireless communications from a UE generally includes determining resources to monitor for radio link monitoring (RLM) prior to being configured with resources to monitor for RLM after establishing a radio resource control (RRC) connection with a network, and performing RLM based on the determined resources.

公开(公告)号：US20210045097A1

公开(公告)日：2021-02-11

申请号：US16949328

申请日：2020-10-26

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin JOHN WILSON ,  Xiao Feng WANG ,  Tao LUO ,  Sony AKKARAKARAN ,  Wooseok NAM ,  Sumeeth NAGARAJA ,  Shengbo CHEN ,  Kaushik CHAKRABORTY

IPC: H04W72/04 ,  H04W24/10 ,  H04L1/00 ,  H04L5/00

Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a UE may measure a first reference signal, associated with a frequency band of a long term evolution (LTE) system, and a second reference signal associated with a frequency band of a new radio (NR) system. The frequency band of the NR system may overlap the frequency band of the LTE system. The UE may determine first channel state feedback, associated with the frequency band of the LTE system, and second channel state feedback, associated with the frequency band of the NR system, based at least in part on the first reference signal and the second reference signal, respectively. The UE may report the first channel state feedback or the second channel state feedback in uplink control information (UCI). Other aspects are provided.

公开(公告)号：US20210014930A1

公开(公告)日：2021-01-14

申请号：US17032675

申请日：2020-09-25

Applicant: QUALCOMM Incorporated

Inventor： Wooseok NAM ,  Tao LUO ,  Sony AKKARAKARAN ,  Makesh Pravin JOHN WILSON ,  Sumeeth NAGARAJA ,  Kaushik CHAKRABORTY ,  Shengbo CHEN ,  Xiao Feng WANG

IPC: H04W76/36 ,  H04W16/14 ,  H04W72/04 ,  H04W76/27 ,  H04L5/00

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for dynamic reclamation of resources reserved for forward compatibility using communications systems operating according to new radio (NR) technologies. Certain aspects provide a method for wireless communication. The method generally includes identifying resources previously reserved for forward compatibility (FC) that are available for reuse, and providing signaling, to one or more user equipments (UEs), indicating the identified resources are available for reuse.

公开(公告)号：US20190297643A1

公开(公告)日：2019-09-26

申请号：US16435031

申请日：2019-06-07

Applicant: QUALCOMM Incorporated

Inventor： Sony AKKARAKARAN ,  Tao LUO ,  Makesh Pravin JOHN WILSON ,  Sumeeth NAGARAJA ,  Kaushik CHAKRABORTY ,  Wooseok NAM ,  Shengbo CHEN ,  Xiao feng WANG

IPC: H04W72/14 ,  H04W72/12 ,  H04L5/00

Abstract: A method of wireless communication includes receiving, at a user equipment (UE), a grant from a base station on a control channel, the grant including content indicating a mini-slot assigned to the UE. The method may include interpreting the grant based on a current configuration of a data channel to determine the mini-slot. The method may include communicating with the base station during the mini-slot indicated by the grant.

公开(公告)号：US20190260484A1

公开(公告)日：2019-08-22

申请号：US16274339

申请日：2019-02-13

Applicant: QUALCOMM Incorporated

Inventor： Wooseok NAM ,  Sony AKKARAKARAN ,  Tao LUO ,  Bilal SADIQ ,  Muhammad Nazmul ISLAM ,  Makesh Pravin JOHN WILSON ,  Sumeeth NAGARAJA ,  Xiao Feng WANG

IPC: H04B17/309 ,  H04W24/10 ,  H04W76/27 ,  H04L5/00 ,  H04B7/0417

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for radio link monitoring reference signal (RLM-RS) determination using communications systems operating according to new radio (NR) technologies. For example, a method for wireless communications from a UE generally includes determining resources to monitor for radio link monitoring (RLM) prior to being configured with resources to monitor for RLM after establishing a radio resource control (RRC) connection with a network, and performing RLM based on the determined resources.

公开(公告)号：US20190222290A1

公开(公告)日：2019-07-18

申请号：US16246228

申请日：2019-01-11

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh LY ,  Tao LUO ,  Sumeeth NAGARAJA

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

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：US20190044593A1

公开(公告)日：2019-02-07

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: H04B7/06 ,  H04W72/04 ,  H04W72/08

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：US20190029049A1

公开(公告)日：2019-01-24

申请号：US16037693

申请日：2018-07-17

Applicant: QUALCOMM Incorporated

Inventor： Sony AKKARAKARAN ,  Makesh Pravin JOHN WILSON ,  Tao LUO ,  Sumeeth NAGARAJA

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

Abstract: Certain aspects of the present disclosure provide techniques for random-access channel (RACH) communication. For example, certain aspects provide a method for providing an indication, via a first uplink transmission, of a preferred beam for a subsequent (uplink or downlink) transmission.

公开(公告)号：US20190028174A1

公开(公告)日：2019-01-24

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

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.