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公开(公告)号：US11552694B2
公开(公告)日：2023-01-10
申请号：US17327094
申请日：2021-05-21
IPC分类号： H04B7/08 , H04W76/19 , H04W24/10 , H04W36/06 , H04W36/30 , H04W36/36 , H04W48/12 , H04W72/04 , H04W72/08
摘要： 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.
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公开(公告)号：US11546906B2
公开(公告)日：2023-01-03
申请号：US16811239
申请日：2020-03-06
IPC分类号： H04W72/04 , H04W16/28 , H04B7/06 , H04W76/19 , H04B7/08 , H04L1/18 , H04W88/08 , H04W88/02 , H04L5/00
摘要： Certain aspects of the present disclosure provide techniques for switching control beams in multi-link systems using new radio (NR) technology multiple-input multiple-output (MIMO) techniques. A user equipment (UE) may obtain a configuration from a base station (BS) comprising at least one first pattern of beams to monitor when performing a beam recovery procedure, communicate using beamforming, with the BS, via an active transmit and receive beam pair, determine a beam failure of the active transmit and receive beam pair, and monitor the beams according to the first pattern in response to the beam failure.
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公开(公告)号：US11510193B2
公开(公告)日：2022-11-22
申请号：US16128355
申请日：2018-09-11
发明人： Makesh Pravin John Wilson , Tao Luo , Xiao Feng Wang , Sony Akkarakaran , Sumeeth Nagaraja , Yan Zhou , Shengbo Chen , Juan Montojo , Wooseok Nam
IPC分类号： H04W72/04 , H04L5/00 , H04W72/08 , H04W56/00 , H04B7/0408 , H04B7/024 , H04B7/08 , H04B7/06 , H04W72/12 , H04W76/15 , H04W74/00 , H04W24/10
摘要： Techniques are described herein for beam pair link procedures used in dual connectivity operations. A master base station may be configured to determine a timing window for a user equipment (UE) to monitor a downlink channel associated with a secondary base station. In some cases, the master base station may determine the timing window during a dual connectivity procedure or during a carrier aggregation procedure. The UE may monitor the downlink channel during the timing window and establish a beam pair link with the secondary base station based on the monitoring.
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14.发明授权公开(公告)号：US11490344B2
公开(公告)日：2022-11-01
申请号：US17070644
申请日：2020-10-14
发明人： Arumugam Chendamarai Kannan , Vinay Chande , Xiaoxia Zhang , Tao Luo , Jing Sun , Makesh Pravin John Wilson
摘要： Methods, systems, and devices for wireless communications are described that provide staggered synchronization signal blocks (SSBs) in frequency sub-bands for beamformed wireless communications. Transmissions of SSBs and control channel transmissions (e.g., remaining minimum system information (RMSI) physical downlink control channel (PDCCH) transmissions) may use multiple transmission beams in a beam sweeping procedure. The SSB transmissions may be transmitted using transmission beams that span one frequency sub-band of a number of available frequency sub-bands, and the control channel transmissions may use transmission beams that span two or more of the frequency sub-bands. The SSB beam sweeping procedure may be performed separately during staggered, non-overlapping time periods for each frequency sub-band of the number of frequency sub-bands. Each of the of SSBs may indicate a reference timing of the base station used to identify a set of resources (e.g., a control resource set (CORESET)) that carries control channel transmissions.
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公开(公告)号：US11425702B2
公开(公告)日：2022-08-23
申请号：US16141567
申请日：2018-09-25
发明人： Jung Ryu , Makesh Pravin John Wilson , Tao Luo , Yan Zhou , Wooseok Nam
摘要： 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：US11382007B2
公开(公告)日：2022-07-05
申请号：US16851856
申请日：2020-04-17
发明人： Sumeeth Nagaraja , Tao Luo , Makesh Pravin John Wilson , Sony Akkarakaran , Juan Montojo , Shengbo Chen , Wooseok Nam , Xiao Feng Wang , Kaushik Chakraborty
摘要： This disclosure generally relates to systems, devices, apparatuses, products, and methods for wireless communication. A communication system may include a user equipment (UE) that receives a configuration for contention-free random access (CFRA) and a configuration for contention-based random access (CBRA). The UE determines a first random access resource. The first random access resource maps to one or more beams from a target base station. The UE determines a beam quality associated with the first random access resource. The UE initiates a random access request using the CFRA when the first random access resource is a contention-free resource, and the beam quality of the first random access resource is above a threshold beam quality. The UE initiates the random access request using the CBRA when the first random access resource is the contention-free resource, and the beam quality of the first random access resource is below the threshold beam quality.
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公开(公告)号：US11375547B2
公开(公告)日：2022-06-28
申请号：US16582696
申请日：2019-09-25
发明人： Yan Zhou , Tao Luo , Makesh Pravin John Wilson , Xiaoxia Zhang , Xiao Feng Wang
摘要： Aspects of the present disclosure provide techniques for tunneling control information associated with random access procedure (RACH) from a fifth generation (5G) new radio (NR) base station (e.g., secondary base station (SgNB)) to the user equipment (UE) via long term evolution (LTE) master base station (e.g., “MeNB”) in order to extend the coverage of the SgNB. The tunneled PDCCH control information may include one or more of frequency domain resource assignment, time domain resource assignment (e.g., physical downlink shared channel (PDSCH) scheduled slot index, start symbol index and duration in the slow), and/or modulation coding scheme (MCS).
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公开(公告)号：US11362770B2
公开(公告)日：2022-06-14
申请号：US16737258
申请日：2020-01-08
发明人： Zhifei Fan , Tao Luo , Xiaoxia Zhang , Arumugam Chendamarai Kannan , Jing Sun , Makesh Pravin John Wilson , Yan Zhou , Wooseok Nam
摘要： Wireless communications systems and methods related to providing feedback for DL data are provided. A first wireless communication device communicates with a second wireless communication device, a first communication signal. The first wireless communication device communicates the second wireless communication device, a grant for retransmitting a feedback associated with the first communication signal. The first wireless communication device communicates with the second wireless communication device, the feedback based on the grant.
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公开(公告)号：US11330571B2
公开(公告)日：2022-05-10
申请号：US16544114
申请日：2019-08-19
发明人： Makesh Pravin John Wilson , Tao Luo , Muhammad Nazmul Islam , Hung Dinh Ly , Heechoon Lee , Peter Pui Lok Ang
摘要： 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：US11316577B2
公开(公告)日：2022-04-26
申请号：US16406562
申请日：2019-05-08
发明人： Makesh Pravin John Wilson , Yan Zhou , Tao Luo
IPC分类号： H04B7/06 , H04B17/309 , H04W72/04 , H04L5/00 , H04W72/08
摘要： Methods are provided for configuring an initial CORESET and associated search space during beam management. A base station (BS) receives measurements of at least one downlink reference signal (RS) from a User Equipment (UE), wherein each of the at least one downlink RS is associated with a transmit beam. The BS selects, based on the received measurements, a transmit beam for transmitting on resources of an initial time and frequency control resource set (CORESET), wherein the initial CORESET schedules unicast Physical Downlink Data Channel (PDSCH) for the UE, wherein the initial CORESET is identified during initial access of the UE to the BS. The BS transmits information relating to the initial CORESET on the selected beam in a Medium Access Control (MAC) Control Element (MAC-CE), wherein the information is transmitted using a combination of bits in the MAC-CE, the bits configured for indicating CORESETs.
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