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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
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.
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132.
公开(公告)号:US20200154489A1
公开(公告)日:2020-05-14
申请号:US16680426
申请日:2019-11-11
Applicant: QUALCOMM Incorporated
Inventor: Yan Zhou , Makesh Pravin John Wilson , Tao Luo , Wanshi Chen
Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for efficiently identifying spatial parameters for receiving control information in an initial coreset. In one example, a user equipment (UE) may receive a TCI state indicating reference signals quasi co-located with a control information transmission in a coreset, and the UE may also identify a quasi co-location (QCL) assumption in a random-access procedure indicating that a synchronization signal block (SSB) is quasi co-located with the control information transmission in the coreset. In this example, the UE may identify spatial parameters for monitoring the coreset for the control information transmission in accordance with the TCI state or the QCL assumption based on the timing of the indicated TCI state and the QCL assumption.
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133.
公开(公告)号:US20200154450A1
公开(公告)日:2020-05-14
申请号:US16681508
申请日:2019-11-12
Applicant: QUALCOMM Incorporated
Inventor: Yan Zhou , Makesh Pravin John Wilson , Tao Luo
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.
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公开(公告)号:US20200077428A1
公开(公告)日:2020-03-05
申请号:US16549157
申请日:2019-08-23
Applicant: QUALCOMM Incorporated
Inventor: Yan Zhou , Tao Luo , Makesh Pravin John Wilson , Kiran Venugopal , Tianyang Bai
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may determine, during a multi-slot downlink transmission, that a mapping from a transmission configuration information (TCI) state index to a first TCI state configuration has changed to a second TCI state configuration. The UE may select, based at least in part on the determined change, the first TCI state configuration or the second TCI state configuration to use for at least a portion of the multi-slot downlink transmission. The UE may receive the multi-slot downlink transmission during one or more slots according to the selected TCI state configuration and the TCI state index.
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公开(公告)号:US20200059922A1
公开(公告)日:2020-02-20
申请号:US16544114
申请日:2019-08-19
Applicant: QUALCOMM Incorporated
Inventor: Makesh Pravin John Wilson , Tao Luo , Muhammad Nazmul Islam , Hung Dinh Ly , Heechoon Lee , Peter Pui Lok Ang
Abstract: Methods, systems, and devices for wireless communications are described that provide for selection of different sets of transmission beams by a user equipment (UE) for establishing beamformed communications with a base station. Each transmission beam of a first set of transmission beams may have corresponding uplink random access channel (RACH) resources. A UE may monitor for transmission beams from a base station and select a first transmission beam of the first set for communications with the base station. As part of a connection establishment, the base station may provide configuration information that indicates a second set of transmission beams that includes each transmission beam of the first set of transmission beams and at least an additional transmission beam. In some cases, the additional transmission beam may be mapped to a first RACH resource that also corresponds to a first transmission beam of the first set of transmission beams.
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公开(公告)号:US20200045676A1
公开(公告)日:2020-02-06
申请号:US16141567
申请日:2018-09-25
Applicant: QUALCOMM Incorporated
Inventor: Jung RYU , Makesh Pravin John Wilson , Tao Luo , Yan Zhou , Wooseok Nam
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive information identifying a channel configuration associated with a downlink channel. The user equipment may identify a repetition configuration for the downlink channel based at least in part on the channel configuration. The user equipment may monitor for the downlink channel in accordance with the repetition configuration based at least in part on identifying the repetition configuration. Numerous other aspects are provided.
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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.
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公开(公告)号:US10511373B2
公开(公告)日:2019-12-17
申请号:US16512229
申请日:2019-07-15
Applicant: Qualcomm Incorporated
Inventor: Makesh Pravin John Wilson , Tao Luo , Jing Sun , Andrei Dragos Radulescu , Aleksandar Damnjanovic , Arumugam Chendamarai Kannan
IPC: H04B7/06
Abstract: Methods, systems, and devices for wireless communication are described that support overriding a beam monitoring pattern for control channel transmissions based on channel conditions between a user equipment and a base station. A base station may select a beam monitoring pattern for transmitting control channel transmissions, which may include a pattern in which two or more beams are used for control channel transmissions. In the event that a first beam of the beams used in the beam monitoring pattern meets certain metrics, the use of one or more additional beams according to the beam monitoring pattern may be overridden and transmissions continued using the first beam. The metrics for continuing use of the first beam may include channel quality metrics, a number of consecutive successful transmissions using the first beam, one or more other metrics, or any combination thereof.
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公开(公告)号:US20190335491A1
公开(公告)日:2019-10-31
申请号:US16392339
申请日:2019-04-23
Applicant: QUALCOMM Incorporated
Inventor: Kiran Venugopal , Makesh Pravin John Wilson , Tianyang Bai , Tao Luo , Xiaoxia Zhang , Zhifei Fan
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive control information indicating a resource allocation pattern for a downlink transmission that is configured for transmission using a plurality of beams and a plurality of mini-slots, where a duration of a mini-slot is less than a duration of a slot. The UE may identify a start time of a first mini-slot of the plurality of mini-slots and a length of the first mini-slot based on the resource allocation pattern, and receive the downlink transmission based on the start time of the first mini-slot and the length of the first mini-slot.
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140.
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
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.
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