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公开(公告)号：US10433342B2
公开(公告)日：2019-10-01
申请号：US15623001
申请日：2017-06-14
Applicant: QUALCOMM Incorporated
Inventor： Sony Akkarakaran , Tao Luo , Ajay Gupta , Sumeeth Nagaraja , Vinod Menon
Abstract: The present disclosure describes a method, an apparatus, and a computer-readable medium for a random access channel (RACH) procedure at a user equipment. For example, the method may select a two-step RACH procedure or a four-step RACH procedure at the UE based at least on RACH configuration information received from a base station or the RACH configuration information at the UE. The example method may further include transmitting, from the UE, one or more messages associated with the two-step RACH procedure or the four-step RACH procedure based on the selection.
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182.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：US20190230624A1
公开(公告)日：2019-07-25
申请号：US16250718
申请日：2019-01-17
Applicant: QUALCOMM Incorporated
Inventor： Muhammad Nazmul Islam , Tao Luo , Xiao Feng Wang , Sumeeth Nagaraja , Yan Zhou
Abstract: Methods, systems, and devices for wireless communications are described. A base station may transmit, within system information, a paging mechanism indication identifying one or more paging mechanisms supported by a network. The base station may transmit a paging grant in accordance with one of the one or more paging mechanisms supported by the network. The base station may transmit a paging message to a user equipment (UE) in accordance with the one of the one or more paging mechanisms supported by the network.
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185.发明申请公开(公告)号：US20190223222A1
公开(公告)日：2019-07-18
申请号：US16240162
申请日：2019-01-04
Applicant: QUALCOMM Incorporated
Inventor： Sumeeth Nagaraja , Tao Luo , Linhai He
IPC: H04W74/08 , H04L27/26 , H04L1/18 , H04B7/0408 , H04W36/30
Abstract: Wireless communications systems and methods related to performing a random access procedure are provided. A first wireless communication device receives a random access response monitoring configuration for a plurality of random access opportunities associated with a random access attempt. The first wireless communication device transmits, to a second wireless communication device, one or more random access preambles associated with the plurality of random access opportunities. The first wireless communication device monitors for a random access response for each of the one or more random access preambles based on the random access response monitoring configuration.
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Patent Agency Ranking
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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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：US20190058532A1
公开(公告)日：2019-02-21
申请号：US16019214
申请日：2018-06-26
Applicant: QUALCOMM Incorporated
Inventor： Sumeeth Nagaraja , Tao Luo , Wooseok Nam
Abstract: Methods, systems, and devices for wireless communication are described. In some wireless communications systems, a user equipment (UE) may support techniques for monitoring the quality of a radio link with a base station (e.g., radio link monitoring (RLM)). If the UE determines that the quality of the radio link is too low, the UE may declare that there is a radio link failure (RLF), and the UE may take action to reconnect with the base station or connect with a different base station. As described herein, the UE may monitor the quality of the radio link by monitoring the quality of multiple reference signals of different types received from the base station. In one example, the UE may be configured by the base station to use one or more specific reference signals for performing RLM based on the quality of different types of reference signals received by the UE.
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