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141.发明申请公开(公告)号：US20190268060A1
公开(公告)日：2019-08-29
申请号：US16281994
申请日：2019-02-21
Applicant: QUALCOMM Incorporated
Inventor： Wooseok Nam , Tao Luo , Muhammad Nazmul Islam , Makesh Pravin John Wilson , Xiao Feng Wang , Sumeeth Nagaraja , Bilal Sadiq
IPC: H04B7/06
Abstract: Certain aspects of the present disclosure provide techniques for transmitting a random access channel (RACH) preamble. For example, certain aspects provide a method for wireless communication by a user-equipment (UE). The method generally includes generating a message comprising a random access channel (RACH) preamble, determining an order of a plurality of beams for transmitting the message based on an indication of the order, and transmitting the message, to a network node, via the plurality of beams in accordance with the determined order of the beams.
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公开(公告)号：US20190260524A1
公开(公告)日：2019-08-22
申请号：US16267298
申请日：2019-02-04
Applicant: QUALCOMM Incorporated
Inventor： Wooseok Nam , Sony Akkarakaran , Tao Luo , Xiao Feng Wang , Makesh Pravin John Wilson , Sumeeth Nagaraja , Shengbo Chen , Yan Zhou
Abstract: Methods, systems, and devices for wireless communications are described. A base station may identify time and frequency resources for a physical downlink shared channel (PDSCH) to be transmitted to a user equipment (UE) in a first transmission time interval (TTI). The base station may transmit configuration information for a control channel search space set in a second TTI. The second TTI may precede the first TTI. The configuration information may include an indication of an absence of a physical downlink control channel (PDCCH) transmission to send in the control channel search space set indicating the identified time and frequency resources for the PDSCH, and a set of time and frequency resources for the control channel search space set. The UE may receive the configuration information and identify the time and frequency resources allocated for the PDSCH in the second TTI, and receive the PDSCH transmission in the second TTI.
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公开(公告)号：US10333755B2
公开(公告)日：2019-06-25
申请号：US15680565
申请日：2017-08-18
Applicant: QUALCOMM Incorporated
Inventor： Sony Akkarakaran , Tao Luo , Arumugam Chendamarai Kannan , Makesh Pravin John Wilson
Abstract: Methods and apparatus for reference signal design are provided. In some aspects, a base station determines one or more of: a demodulation reference signal (DMRS) sequence or a DMRS location pattern, based on at least one of a plurality of transmission characteristics, and transmits one or more of the determined DMRS sequence or the determined DMRS location pattern. In further aspects, a user equipment identifies one or more of: a demodulation reference signal (DMRS) sequence or a DMRS location pattern from a base station, determines at least one of a plurality of transmission characteristics of the first base station based on one or more of: the identified DMRS sequence or the identified DMRS location pattern, and performs interference cancellation for transmissions from the base station.
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公开(公告)号：US10327154B2
公开(公告)日：2019-06-18
申请号：US15705148
申请日：2017-09-14
Applicant: QUALCOMM Incorporated
Inventor： Sumeeth Nagaraja , Tao Luo , Ajay Gupta , Makesh Pravin John Wilson , Kaushik Chakraborty , Sony Akkarakaran , Vinod Viswanatha Menon
IPC: H04W16/28 , H04B7/06 , H04B7/08 , H04L5/00 , H04B17/318 , H04B17/336
Abstract: Apparatuses and methods of beam switching are presented. A beam switch message (BSM) is transmitted to a second device via a first beam set. The BSM includes a command to switch from communication via the first beam set to communication via a second beam set at a switch time. A response message is received from the second device via the first beam set. The response message indicates that the second device received the BSM. A communication is sent to the second device via the second beam set after the switch time if the response message is received.
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公开(公告)号：US10326576B2
公开(公告)日：2019-06-18
申请号：US15948539
申请日：2018-04-09
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 in a nested network system are provided. A first wireless communication device receives, from a second wireless communication device, a reference signal configuration of a first network of a long-term evolution (LTE) radio access technology (RAT). The first wireless communication device and the second wireless communication device are associated with a second network of another RAT. The first wireless communication device receives, from the second wireless communication device, a communication signal in the second network based on the reference signal configuration of the first network. The reference signal configuration indicates at least one of a frequency tone of a reference signal of the first network, a time period of the reference signal of the first network, or a number of antenna ports associated with the reference signal of the first network.
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Patent Agency Ranking
公开(公告)号：US20190124635A1
公开(公告)日：2019-04-25
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
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.
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公开(公告)号：US20190115955A1
公开(公告)日：2019-04-18
申请号：US16158272
申请日：2018-10-11
Applicant: QUALCOMM Incorporated
Inventor： Makesh Pravin John Wilson , Tao Luo , Sony Akkarakaran , Sumeeth Nagaraja , Xiao Feng Wang , Juan Montojo , Shengbo Chen , Wooseok Nam , Yan Zhou
Abstract: Methods, systems, and devices for wireless communications are described. In some wireless communications systems, a base station may communicate with a user equipment (UE) using multiple antennas. Data streams may be mapped to the antennas using antenna ports. In some cases, a base station may transmit a transmission configuration indication (TCI) to a UE to indicate quasi co-location (QCL) relationships between antenna ports used for downlink communication with a UE. The UE may use these QCL relationships to identify appropriate techniques for decoding a downlink transmission from the base station. In some cases, it may be appropriate for a base station to update one or more TCI states configured for indicating, to a UE, QCL relationships between antenna ports used for downlink communication with the UE. As described herein, a base station may support techniques for dynamically updating such TCI states (e.g., via downlink control information (DCI) signaling).
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公开(公告)号：US20180375628A1
公开(公告)日：2018-12-27
申请号：US16015056
申请日：2018-06-21
Applicant: QUALCOMM Incorporated
Inventor： Heechoon Lee , Makesh Pravin John Wilson , Tao Luo , Jing Sun
Abstract: Methods, systems, and devices for wireless communication are described. In some wireless communications systems, a base station may transmit control information to a user equipment (UE) in a control resource set (coreset) of a transmission time interval (TTI). As described herein, the base station may transmit common control information in a common search space (CSS) of the coreset and a UE-specific control information in a UE-specific search space (USS) of the same coreset. In addition, the base station may transmit reference signals in the coreset to allow the UE to perform channel estimation to correctly decode or demodulate the control information in the CSS and USS of the coreset. In some examples, the reference signals transmitted in the CSS and USS of the coreset may include a common sequence for the coreset.
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公开(公告)号：US10098144B2
公开(公告)日：2018-10-09
申请号：US15713536
申请日：2017-09-22
Applicant: QUALCOMM Incorporated
Inventor： Makesh Pravin John Wilson , Tao Luo , Taesang Yoo , Xiaoxia Zhang , Heechoon Lee , June Namgoong , Bilal Sadiq , Wenjun Li
Abstract: A control resource region of an New Radio system slot structure may be separated into control resource sets, only some of which may be used for control transmissions. Aspects presented herein improve the efficient utilization of resources by enabling data transmission in resources of the DL control resource region and/or the UL control resource region. A UE receives an indication of a control resource set in a control resource region of a slot that may provide a control channel resource or a data channel resource and performs rate matching for data transmissions in the data channel based at least in part on the indication. The indication may be a semi-static indication, e.g., RRC signaling, of the control resource set.
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公开(公告)号：US20180227102A1
公开(公告)日：2018-08-09
申请号：US15875524
申请日：2018-01-19
Applicant: QUALCOMM Incorporated
Inventor： Makesh Pravin John Wilson , Tao Luo , June Namgoong , Sumeeth Nagaraja , Sony Akkarakaran
Abstract: Some wireless communication systems may operate in frequency ranges that are associated with beamformed transmissions between wireless devices. In such systems, a user equipment (UE) may be configured to monitor physical downlink control channel (PDCCH) on multiple beam pair links. In order to decode relevant downlink control information (DCI), a UE may perform multiple blind decodes on a control region of a downlink transmission. Blind decoding may be resource-intensive (e.g., computationally complex, energy consuming, etc.), but some systems may be efficiently designed to support the desired PDCCH monitoring via multiple beam pair links without significantly increasing the number of blind decodes at the UE. Aspects of such a design may include non-uniform candidate restriction, beam pair link-specific search spaces, and random control channel element (CCE) mapping across a candidate search space.
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