公开(公告)号：US11032822B2

公开(公告)日：2021-06-08

申请号：US15927895

申请日：2018-03-21

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Tao Luo ,  Makesh Pravin John Wilson ,  Xiao Feng Wang

IPC: H04W72/04 ,  H04W24/04 ,  H04B7/06 ,  H04B7/08

Abstract: A base station may maintain multiple beam pair links, with one being actively used for communication. The active beam pair may become blocked. Accordingly, it may be necessary to switch to another beam pair. The apparatus may be an apparatus for wireless communication. The apparatus for wireless communication may include a memory and at least one processor coupled to the memory. The at least one processor is configured to determine a set of active beam pairs including at least a first beam pair and a second beam pair and select the first beam pair. The at least one processor is also configured to predict that the first beam pair is blocked, the prediction based on an expiration of a timer and sweep through the set of active beam pairs based on predicting that the first beam pair is blocked.

公开(公告)号：US11025348B2

公开(公告)日：2021-06-01

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 ,  H04W76/27 ,  H04B7/0417 ,  H04L5/00 ,  H04W24/10 ,  H04W24/02 ,  H04W74/08

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：US10992369B2

公开(公告)日：2021-04-27

申请号：US16796480

申请日：2020-02-20

Applicant: QUALCOMM Incorporated

Inventor： Kiran Venugopal ,  Jung Ho Ryu ,  Makesh Pravin John Wilson ,  Tao Luo

IPC: H04B7/08 ,  H04W76/19 ,  H04W24/10 ,  H04W36/06 ,  H04W36/30 ,  H04W36/36 ,  H04W48/12 ,  H04W72/04 ,  H04W72/08

Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to cell recovery techniques. One example method generally includes receiving, at a user-equipment (UE), at least one pilot signal via a secondary cell, receive, via a primary cell, a first message triggering reporting of at least one preferred beam for communication via the secondary cell, determining the preferred beam based on the at least one pilot signal, transmitting, via the primary cell, a report indicating the at least one preferred beam, and communicating data via the secondary cell and via the preferred beam.

公开(公告)号：US10979273B2

公开(公告)日：2021-04-13

申请号：US16298927

申请日：2019-03-11

Applicant: QUALCOMM incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Peter Pui Lok Ang ,  Heechoon Lee ,  Sumeeth Nagaraja ,  Sony Akkarakaran

IPC: H04L27/26 ,  H04W64/00 ,  H04L25/02 ,  H04L5/00 ,  H04L1/16 ,  H04W28/20 ,  H04W48/08 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communication are described. In some wireless communications systems, a user equipment (UE) may be configured to transition to communicating on a first bandwidth part from communicating on a second bandwidth part. In order to ensure that the UE is able to perform receiver processing for demodulating data received on the first bandwidth part, after transitioning to communicating on the first bandwidth part, the UE may be configured to perform receiver processing using reference signals received on the second bandwidth part. That is, for a configured period of time, before the UE is able to perform receiver processing for demodulating data received on the first bandwidth part using reference signals received on the first bandwidth part, the UE may perform receiver processing for demodulating data received on the first bandwidth part using reference signals received on the second bandwidth part.

公开(公告)号：US10973034B2

公开(公告)日：2021-04-06

申请号：US16681508

申请日：2019-11-12

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Makesh Pravin John Wilson ,  Tao Luo

IPC: H04W72/04 ,  H04W72/10 ,  H04W24/08 ,  H04W72/08 ,  H04W74/08

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a base station may configure a user equipment (UE) with multiple control resource sets (CORESETs) for control channel monitoring. In some cases (e.g., based on a random access (RACH) procedure), the base station may update a CORESET with an updated downlink beam and, correspondingly, an updated active quasi-co-location (QCL) assumption for monitoring. In some cases, this updated active QCL assumption may cause the total number of active QCL assumptions to exceed a UE threshold value for monitoring. The UE may determine a priority order for monitoring the CORESETs, where the CORESET corresponding to the updated active QCL is assigned highest priority and the remaining CORESETs are prioritized based on CORESET or search space parameters, and the UE may either drop CORESETs from monitoring or modify active QCL assumptions for CORESETs based on the determined priority order.

公开(公告)号：US10959232B2

公开(公告)日：2021-03-23

申请号：US16378099

申请日：2019-04-08

Applicant: QUALCOMM Incorporated

Inventor： Xiao Feng Wang ,  Tao Luo ,  Sony Akkarakaran ,  Makesh Pravin John Wilson ,  Yan Zhou ,  Wooseok Nam ,  Abhishek Sinha ,  Juan Montojo

IPC: H04W72/02 ,  H04W72/04 ,  H04B17/309 ,  H04W88/02

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a signal identifying a first beam configuration and a second beam configuration to be used for performing a beamformed transmission of a physical uplink control channel (PUCCH) signal. The UE may determine, for a first PUCCH transmission occasion associated with the first beam configuration, that a communication metric associated with performing the beamformed transmission of the PUCCH signal using the first beam configuration fails to satisfy a threshold. The UE may perform, at a second PUCCH transmission occasion and based at least in part on the determining, the beamformed transmission of the PUCCH signal according to the second beam configuration.

公开(公告)号：US10939282B2

公开(公告)日：2021-03-02

申请号：US16281522

申请日：2019-02-21

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Makesh Pravin John Wilson ,  Tao Luo ,  Sony Akkarakaran

IPC: H04W72/04 ,  H04W8/22 ,  H04W88/02

Abstract: Certain aspects of the present disclosure provide techniques for selecting a default value for one or more User Equipment (UE) parameters when a UE is configured for Medium Access Control-Control Element (MAC-CE) based UE parameter value selection. The UE detects at least one condition relating to a candidate list of values associated with a set of UE parameters, wherein a value of each UE parameter in the set is selected from the candidate list and received by the UE via a MAC-CE. In response to the detection, the UE determines a default value for at least one UE parameter from the set and performs at least one operation corresponding to the at least one UE parameter after setting the default value.

公开(公告)号：US10938459B2

公开(公告)日：2021-03-02

申请号：US16409529

申请日：2019-05-10

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho Ryu ,  Tianyang Bai ,  Kiran Venugopal ,  Makesh Pravin John Wilson ,  Tao Luo ,  Raju Hormis ,  Junyi Li

IPC: H04L7/08 ,  H04B7/06 ,  H04L5/14

Abstract: Certain aspects of the present disclosure provide a method for changing a beam pair utilized by a user equipment (UE) for communicating over a full-duplex frequency channel. The method includes establishing full-duplex communication with a base station (BS) utilizing a first beam pair comprising a first uplink beam and a first downlink beam utilized by the UE for the full-duplex communication. The method also includes transmitting a first signal to the BS, the first signal comprising a request to change the first beam pair. The method also includes receiving, via the first downlink beam, a second signal responsive to the request, the second signal configured to enable the UE to change from the first beam pair to a second beam pair and maintain full-duplex communication with the BS, wherein the second beam pair includes one or more of a second uplink beam or a second downlink beam.

公开(公告)号：US10917195B2

公开(公告)日：2021-02-09

申请号：US16415641

申请日：2019-05-17

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Gabi Sarkis ,  Tao Luo ,  Kiran Venugopal ,  Tianyang Bai ,  Xiaoxia Zhang ,  Juan Montojo

IPC: H04L1/00 ,  H03M13/29

Abstract: Methods, systems, and devices for wireless communications are described. An encoder may utilize a common mother code for encoding control information to each set of control channel resources of a control channel, control channel associated with multiple transmission configuration indication (TCI) states. For example, the common mother code may include utilizing same parameters when constructing the polar code for each set of control channel resources, where the parameters include a block length, a number of information bits, or both. Additionally, rate matching procedures for each control channel resource may differ (e.g., puncturing, shortening, or repetition). Additionally or alternatively, the mother code and rate matching may be determined based on a sum of all available coded bits in each control channel resource and the number of information bits. A decoder may then attempt soft combination of candidates from the different sets of control channel resources to obtain decoded control information.

公开(公告)号：US10893540B2

公开(公告)日：2021-01-12

申请号：US16046781

申请日：2018-07-26

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08 ,  H04W74/00 ,  H04L5/00 ,  H04W36/00

Abstract: Methods, systems, and devices for wireless communication are described. Wireless communications systems may support uplink random access channel (RACH) transmissions on multiple beams and over multiple component carriers (CCs). A wireless device may transmit a random access preamble to a base station in a first RACH transmission, which may indicate a set of CCs over which the base station may respond with a random access response (RAR) in a second RACH transmission. The second RACH transmission may then include an indication for which CCs the wireless device may use for a subsequent RACH transmission (e.g., a RACH message 3). The wireless device may also indicate a beam index and/or time-frequency resources associated with beams and/or CCs used for such cell acquisition transmissions. In other examples, the base station may indicate resources (e.g., via a handover command or RACH command) for wireless device scheduling request and/or beam-failure recovery request transmission.