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公开(公告)号:US20170346545A1
公开(公告)日:2017-11-30
申请号:US15488403
申请日:2017-04-14
Applicant: QUALCOMM Incorporated
Inventor: Muhammad Nazmul ISLAM , Bilal SADIQ , Tao LUO , Sundar SUBRAMANIAN , Junyi LI
IPC: H04B7/08 , H04W28/02 , H04B7/0404 , H04B7/06 , H01Q1/24 , H04B7/0417 , H04W40/24 , H04W16/28
CPC classification number: H04B7/0814 , H01Q1/245 , H04B7/0404 , H04B7/0417 , H04B7/061 , H04B7/0617 , H04B7/0626 , H04B7/0628 , H04B7/0634 , H04B7/0639 , H04B7/0695 , H04B7/088 , H04W16/28 , H04W28/0231 , H04W40/248
Abstract: A UE may receive a beam modification command that indicates a set of transmit beam indexes corresponding to a set of transmit beams of a base station, and each transmit beam index of the set of transmit beam indexes may indicate at least a transmit direction for transmitting a transmit beam by the base station. The UE may determine a set of receive beam indexes corresponding to receive beams of the UE based on the set of transmit beam indexes, and each receive beam index of the set of receive beam indexes may indicate at least a receive direction for receiving a receive beam by the UE. The UE may receive, from the base station, a signal through at least one receive beam corresponding to at least one receive beam index included in the set of receive beam indexes.
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公开(公告)号:US20170346543A1
公开(公告)日:2017-11-30
申请号:US15488401
申请日:2017-04-14
Applicant: QUALCOMM Incorporated
Inventor: Muhammad Nazmul ISLAM , Bilal SADIQ , Tao LUO , Sundar SUBRAMANIAN , Junyi LI
IPC: H04B7/08 , H04W28/04 , H04W28/02 , H04B7/0404 , H04B7/06 , H01Q1/24 , H04B7/0417 , H04W40/24 , H04W16/28
Abstract: A user equipment (UE) may be configured to perform a random access channel (RACH) procedure with a base station. As part of the RACH procedure, the base station may transmit a contention resolution message to the UE. The UE may receive, from the base station, the contention resolution message. The contention resolution message may indicate at least a beam index corresponding to a beam, such as a transmit beam of the base station. The UE may determine whether the beam index is applicable to the UE. The UE may communicate with the base station through the beam corresponding to the beam index when the beam index is applicable to the UE. For example, the UE may send an acknowledgement message to the base station, and the base station and UE may switch to a beam corresponding to the beam index after communication of the acknowledgement message.
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公开(公告)号:US20170346535A1
公开(公告)日:2017-11-30
申请号:US15488399
申请日:2017-04-14
Applicant: QUALCOMM Incorporated
Inventor: Muhammad Nazmul ISLAM , Bilal SADIQ , Tao LUO , Sundar SUBRAMANIAN , Junyi LI
IPC: H04B7/0417 , H04W40/08 , H04W28/02 , H04B7/0404 , H01Q1/24 , H04B7/06 , H04B7/0426 , H04W52/14 , H04W16/28
CPC classification number: H04B7/0417 , H01Q1/245 , H04B7/0404 , H04B7/0426 , H04B7/0452 , H04B7/061 , H04B7/0617 , H04B7/0621 , H04B7/088 , H04W16/28 , H04W28/0221 , H04W40/08 , H04W52/146 , H04W74/0833
Abstract: A UE may select a first beam for communication with a base station. The UE may attempt, through the selected first beam, at least one RACH procedure with the base station. The UE may determine that the at least one RACH procedure failed with the base station. The UE may send, after a successful RACH procedure with the base station, information indicating that the at least one RACH procedure failed. In an aspect, the UE may select a new beam for communication with the base station after the determination that the at least one RACH procedure failed, and at least a portion of the successful RACH procedure may be performed through the selected new beam.
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公开(公告)号:US20170303141A1
公开(公告)日:2017-10-19
申请号:US15468825
申请日:2017-03-24
Applicant: QUALCOMM Incorporated
Inventor: Muhammad Nazmul ISLAM , Tao LUO , Bilal SADIQ , Juergen CEZANNE , Sundar SUBRAMANIAN , Junyi LI
CPC classification number: H04W72/0413 , H04B7/0408 , H04B7/0417 , H04B7/0626 , H04B7/0632 , H04B7/0639 , H04B7/0695 , H04B7/088 , H04B17/336 , H04L5/0048 , H04L5/0053 , H04L25/0204 , H04W16/28 , H04W72/02 , H04W72/046 , H04W74/0833
Abstract: When beamforming (e.g., via a millimeter wave system (mmW)) is used for wireless communication, a base station may transmit beams that are directed to certain directions. Due to the directional nature of the beams in the mmW system, an approach to determine a beam that provides a desirable gain is studied. The apparatus may be a user equipment (UE). The apparatus receives, from a base station, a plurality of signals through a plurality of beams of the base station, each of the plurality of beams corresponding to a respective antenna port of a plurality of antenna ports of the base station. The apparatus performs channel estimation for each beam of the plurality of beams from the plurality of antenna ports based on the plurality of signals. The apparatus transmits, to the base station, a feedback signal including information about one or more beams selected from the plurality of beams, the feedback signal further including one or more candidate uplink precoders.
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公开(公告)号:US20170302354A1
公开(公告)日:2017-10-19
申请号:US15468698
申请日:2017-03-24
Applicant: QUALCOMM Incorporated
Inventor: Muhammad Nazmul ISLAM , Tao LUO , Bilal SADIQ , Juergen CEZANNE , Sundar SUBRAMANIAN , Junyi LI
CPC classification number: H04W72/0413 , H04B7/0408 , H04B7/0417 , H04B7/0626 , H04B7/0632 , H04B7/0639 , H04B7/0695 , H04B7/088 , H04B17/336 , H04L5/0048 , H04L5/0053 , H04L25/0204 , H04W16/28 , H04W72/02 , H04W72/046 , H04W74/0833
Abstract: When beamforming (e.g., via a millimeter wave system (mmW)) is used for wireless communication, a base station may transmit beams that are directed to certain directions. Due to the directional nature of the beams in the mmW system, an approach to determine a beam that provides a desirable gain is studied. The apparatus may be a user equipment (UE). The apparatus receives, from a base station, a plurality of signals through a plurality of beams of the base station, each of the plurality of beams corresponding to a respective antenna port of a plurality of antenna ports of the base station. The apparatus receives from the base station a number of beams whose information should be fed back to the base station. The apparatus performs channel estimation for each beam of the plurality of beams from the plurality of antenna ports based on the plurality of signals.
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公开(公告)号:US20170289966A1
公开(公告)日:2017-10-05
申请号:US15365893
申请日:2016-11-30
Applicant: QUALCOMM Incorporated
Inventor: Muhammad Nazmul ISLAM , Tao LUO , Sundar SUBRAMANIAN , Bilal SADIQ , Juergen CEZANNE , Junyi LI
CPC classification number: H04W72/042 , H04L5/0044 , H04L5/0048 , H04L5/0051 , H04L5/0053 , H04L5/0091 , H04L5/1469 , H04W72/0413 , H04W72/1289 , H04W76/27 , H04W88/02
Abstract: The present disclosure relates to wireless communication in mmW networks. The apparatus may be a base station. The apparatus may be configured to determine a first symbol index and a second symbol index associated with downlink resources allocated to a UE. The first symbol index may indicate when the downlink resources begin in a subframe, and the second symbol index may indicate when the downlink resources end in the subframe. The apparatus may be configured to transmit an indication of the first symbol index and the second symbol index to the UE.
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公开(公告)号:US20150087350A1
公开(公告)日:2015-03-26
申请号:US14331788
申请日:2014-07-15
Applicant: QUALCOMM Incorporated
Inventor: Beibei WANG , Saurabha Rangrao TAVILDAR , Qiao LI , Bilal SADIQ , Shreeshankar Ravishankar BODAS
IPC: H04W52/38
CPC classification number: H04W52/38 , H04L5/0066 , H04W52/242 , H04W52/346 , H04W52/42 , H04W72/02 , H04W72/082
Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus (e.g., first transmitter) determines a transmission power of each of a plurality of neighboring transmitters respectively transmitting on a plurality of subchannels in a bandwidth, detects a pathloss to each of the plurality of neighboring transmitters respectively transmitting on the plurality of subchannels, and selects one of the plurality of subchannels for transmitting a signal based on the determined transmission power on each of the plurality of subchannels and the detected pathloss to each of the plurality of neighboring transmitters respectively transmitting on the plurality of subchannels.
Abstract translation: 提供了一种用于无线通信的方法,装置和计算机程序产品。 设备(例如,第一发射机)确定分组在带宽中的多个子信道上发射的多个相邻发射机中的每一个的发射功率,检测分别在多个子信道上发射的多个相邻发射机中的每一个的路径损耗, 并且基于所确定的多个子信道中的每一个子信道上的发送功率和所检测的路径损耗来选择所述多个子信道中的一个用于发送信号,所述多个子信道中的每一个分别在所述多个子信道上发送。
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48.
公开(公告)号:US20250030462A1
公开(公告)日:2025-01-23
申请号:US18714427
申请日:2022-03-01
Applicant: QUALCOMM Incorporated
Inventor: Danlu ZHANG , Juergen CEZANNE , Bilal SADIQ , Abdelrahman Mohamed Ahmed Mohamed IBRAHIM , Meilong JIANG , Renqiu WANG , Tingfang JI , Yu ZHANG , Ashwin SAMPATH , Junyi LI
IPC: H04B7/0452 , H04B7/0456
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first network node may communicate with a second network node using a line-of-sight (LOS) multiple input multiple output (MIMO) configuration at a frequency. The first network node may communicate, based at least in part on a multi-user MIMO (MU MIMO) mode, with a third network node using the LOS MIMO configuration and at the frequency, wherein the MU MIMO mode corresponds to an antenna system configuration of the rectangular antenna array, wherein the antenna system configuration includes at least one of an antenna assignment scheme, an antenna amplitude configuration, or an antenna phase configuration. Numerous other aspects are described.
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公开(公告)号:US20210289458A1
公开(公告)日:2021-09-16
申请号:US17337141
申请日:2021-06-02
Applicant: QUALCOMM Incorporated
Inventor: Navid ABEDINI , Hung Dinh LY , Tao LUO , Muhammad Nazmul ISLAM , Bilal SADIQ
IPC: H04W56/00
Abstract: Certain aspects of the present disclosure relate to methods and apparatus synchronization configuration in different operation modes using communications systems operating according to new radio (NR) technologies. For example, a method for wireless communications by a base station (BS) may include determining an operation mode of the BS, determining a transmission configuration of at least one of a one or more synchronization channels or a one or more synchronization signals based on the operation mode, and transmitting the one or more synchronization channels or the one or more synchronization signals based on the determined transmission configuration.
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50.
公开(公告)号:US20210288728A1
公开(公告)日:2021-09-16
申请号:US17333456
申请日:2021-05-28
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
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.
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