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1.发明授权Method for detecting navigation beacon signals using two antennas or equivalent thereof 有权使用两个天线或其等效物检测导航信标信号的方法公开(公告)号：US07362268B2
公开(公告)日：2008-04-22
申请号：US11165281
申请日：2005-06-22
IPC分类号： G01S3/16
CPC分类号： G01S19/21 , G01S5/0215 , G01S19/36 , G01S2013/466 , H04B7/0854
摘要： A method for detecting a plurality of navigation beacon signals by using either two antennas or a synthetic aperture antenna for receiving a plurality of distinct measurements, and combining the plurality of distinct measurements using a plurality of antenna weight components to form an interference cancellation beam. In one embodiment, the plurality of antenna weight components is determined by eigenvalue processing. In another embodiment, the plurality of antenna weight components is determined by simplified processing. In another aspect, a single antenna is used for receiving an originally received measurement. A copy of the originally received measurement is made and processed to achieve the proper time delay to emulate spatial diversity. The originally received measurement and the processed copy are combined to form an interference cancellation beam.
摘要翻译： 一种用于通过使用两个天线或合成孔径天线来接收多个不同测量来检测多个导航信标信号的方法，以及使用多个天线权重分量组合所述多个不同测量以形成干扰消除波束。 在一个实施例中，多个天线权重分量由特征值处理确定。 在另一个实施例中，通过简化的处理来确定多个天线权重分量。 在另一方面，单个天线用于接收原始接收的测量。 进行原始接收的测量的副本并进行处理以实现适当的时间延迟来模拟空间分集。 原始接收的测量和处理的拷贝被组合以形成干扰消除波束。
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2.发明授权Method for detecting navigation beacon signals using two antennas or equivalent thereof 有权使用两个天线或其等效物检测导航信标信号的方法公开(公告)号：US07859461B2
公开(公告)日：2010-12-28
申请号：US12098323
申请日：2008-04-04
IPC分类号： G01S3/16
CPC分类号： G01S19/21 , G01S5/0215 , G01S19/36 , G01S2013/466 , H04B7/0854
摘要： A method for detecting a plurality of navigation beacon signals by using either two antennas or a synthetic aperture antenna for receiving a plurality of distinct measurements, and combining the plurality of distinct measurements using a plurality of antenna weight components to form an interference cancellation beam. In one embodiment, the plurality of antenna weight components is determined by eigenvalue processing. In another embodiment, the plurality of antenna weight components is determined by simplified processing. In another aspect, a single antenna is used for receiving an originally received measurement. A copy of the originally received measurement is made and processed to achieve the proper time delay to emulate spatial diversity. The originally received measurement and the processed copy are combined to form an interference cancellation beam.
摘要翻译： 一种用于通过使用两个天线或合成孔径天线来接收多个不同测量来检测多个导航信标信号的方法，以及使用多个天线权重分量组合所述多个不同测量以形成干扰消除波束。 在一个实施例中，多个天线权重分量由特征值处理确定。 在另一个实施例中，通过简化的处理来确定多个天线权重分量。 在另一方面，单个天线用于接收原始接收的测量。 进行原始接收的测量的副本并进行处理以实现适当的时间延迟来模拟空间分集。 原始接收的测量和处理的拷贝被组合以形成干扰消除波束。
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3.发明申请Method For Detecting Navigation Beacon Signals Using Two Antennas Or Equivalent Thereof 有权使用两个天线或等效的检测导航信标信号的方法公开(公告)号：US20080186230A1
公开(公告)日：2008-08-07
申请号：US12098323
申请日：2008-04-04
CPC分类号： G01S19/21 , G01S5/0215 , G01S19/36 , G01S2013/466 , H04B7/0854
摘要： A method for detecting a plurality of navigation beacon signals by using either two antennas or a synthetic aperture antenna for receiving a plurality of distinct measurements, and combining the plurality of distinct measurements using a plurality of antenna weight components to form an interference cancellation beam. In one embodiment, the plurality of antenna weight components is determined by eigenvalue processing. In another embodiment, the plurality of antenna weight components is determined by simplified processing. In another aspect, a single antenna is used for receiving an originally received measurement. A copy of the originally received measurement is made and processed to achieve the proper time delay to emulate spatial diversity. The originally received measurement and the processed copy are combined to form an interference cancellation beam.
摘要翻译： 一种用于通过使用两个天线或合成孔径天线来接收多个不同测量来检测多个导航信标信号的方法，以及使用多个天线权重分量组合所述多个不同测量以形成干扰消除波束。 在一个实施例中，多个天线权重分量由特征值处理确定。 在另一个实施例中，通过简化的处理来确定多个天线权重分量。 在另一方面，单个天线用于接收原始接收的测量。 进行原始接收的测量的副本并进行处理以实现适当的时间延迟来模拟空间分集。 原始接收的测量和处理的拷贝被组合以形成干扰消除波束。
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公开(公告)号：US20240236963A9
公开(公告)日：2024-07-11
申请号：US18383224
申请日：2023-10-24
申请人： Ahmad Jalali
发明人： Ahmad Jalali
IPC分类号： H04W72/0453 , H04W72/541
CPC分类号： H04W72/0453 , H04W72/541
摘要： A communications apparatus comprises of one or more Active Antenna Units (AAUs) collocated in the same sector, and a processor. The processor de-multiplexes a data packet stream into at least two sub-streams, each sub-stream is transmitted on a different medium path. Each medium path is comprised of frequency channels, antenna polarizations and AAUs. A scheduler assigns data packets to different medium paths. The apparatus transmits on at least one frequency band, each frequency band is divided into a set of one or more frequency channels, at least one frequency channel of a frequency band is assigned to at least one AAU. A frequency channel is assigned to only one or to both antenna polarizations of the same AAU. The apparatus determines if an extraneous signal is present on a frequency channel and stops transmitting on the entire or part of the frequency channel where extraneous signal is detected.
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公开(公告)号：US20210392558A1
公开(公告)日：2021-12-16
申请号：US16900572
申请日：2020-06-12
申请人： Ahmad Jalali
发明人： Ahmad Jalali
摘要： A User Equipment (UE) measures the signal quality of a dedicated downlink reference signal transmitted by a Base Station (BS) to the UE. If the signal quality is below a threshold, the UE initiates a measurement procedure to determine a target handover BS. The UE sequentially transmits an uplink reference signal on each of UE's beams. The BSs estimate the Angle of Arrival (AoA) of any received uplink reference signal, form a dedicated downlink beam pointed toward the AoA and transmit an acknowledgment to the UE on the corresponding beam. The UE estimates the signal quality of the received acknowledgements on the different UE beams, and transmits a handover message on the UE beam on which the acknowledgement with the highest signal quality is received. The uplink reference signal may comprise of a single preamble. The acknowledgement may comprise of a preamble, or a preamble followed by a small payload.
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公开(公告)号：US10389431B2
公开(公告)日：2019-08-20
申请号：US16205641
申请日：2018-11-30
申请人： Ahmad Jalali
发明人： Ahmad Jalali
摘要： An air interface for a terrestrial communications network for providing broadband internet access to aerial platforms is described. In some embodiments, systems and methods are described for efficient retransmission of data packets that are not received correctly. In other embodiments, systems and methods are described for determining the modulation constellation and error correction code rate used in transmitting a data packet to maximize data rates. In another set of embodiments, the retransmission scheme and modulation constellation and error correction code rate determination are jointly optimized to maximize data rates.
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公开(公告)号：US09807569B2
公开(公告)日：2017-10-31
申请号：US14533756
申请日：2014-11-05
申请人： Ahmad Jalali
发明人： Ahmad Jalali
CPC分类号： H04W4/046 , G01S5/02 , G01S5/14 , G01S13/876 , G06Q10/0833 , H04B7/18502 , H04W64/003
摘要： An automated method of determining a location of an aerial platform is described. The method includes: transmitting, from the aerial platform, a first pilot signal; receiving, at a set of ground devices, the first pilot signal; determining a first set of values based on measurements associated with the first pilot signal; and calculating a position of the aerial platform based at least partly on the first set of values. An automated method adapted to determine a location of a ground device includes: transmitting, from the ground device, a first pilot signal; receiving, at each aerial platform in a set of aerial platforms, the first pilot signal; determining a first set of values based on measurements associated with the first pilot signal; and calculating a position of the ground device based at least partly on the first set of values. A system adapted to provide location information is described.
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公开(公告)号：US09742484B2
公开(公告)日：2017-08-22
申请号：US14284079
申请日：2014-05-21
申请人： Ahmad Jalali
发明人： Ahmad Jalali
IPC分类号： H04B7/185 , H04W36/30 , B64C39/02 , H04W84/06 , H04W24/02 , H04W48/16 , H04W88/16 , H04W84/00
CPC分类号： H04B7/18504 , B64C39/024 , B64C2201/122 , H04B7/1555 , H04B7/18506 , H04B7/18528 , H04B7/18539 , H04B7/18541 , H04B7/18543 , H04B7/18554 , H04B7/18578 , H04W24/02 , H04W36/0005 , H04W36/0016 , H04W36/0083 , H04W36/12 , H04W36/30 , H04W36/36 , H04W48/16 , H04W84/005 , H04W84/06 , H04W88/16 , Y02D70/00 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/164 , Y02D70/446
摘要： Systems and methods are described that use the downlink and uplink frequency bands of the fixed satellite service (FSS) and direct broadcast service (DBS) systems to provide broadband access to aerial platforms including aircraft, drones, and unmanned aerial vehicles (UAVs) such as balloons. The secondary service aerial platform transmitters are configured to avoid interference into the primary satellite service receivers. The aerial platform may be able to detect and connect to the cell site with the strongest signal. The aerial platform may be able to handoff from one cell site to another. Systems and methods are described that provide broadband access to ground terminal via aerial platforms such as drones and UAVs such as balloons.
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公开(公告)号：US09385803B2
公开(公告)日：2016-07-05
申请号：US14228640
申请日：2014-03-28
申请人： Ahmad Jalali
发明人： Ahmad Jalali
CPC分类号： H04B7/18506 , H04B7/10 , H04W28/0226 , H04W28/0231 , H04W36/08 , H04W40/22 , H04W84/06
摘要： An air to ground (ATG) broadband access system is described. The system includes: a plurality of cell sites that together form a service coverage area, each cell site adapted to generate a local coverage area, each sell site including: multiple antenna fixtures situated at a lower corner of the local coverage area, where the local coverage area includes multiple sectors and each antenna fixture is associated with a different sector than each other antenna fixture; and a radio sub-system connected to each antenna fixture, the radio sub-system including a transmitter capable of modulating and transmitting signals through the antenna fixture and a receiver capable of demodulating and decoding signals received through the antenna fixture; and at least one aerial platform including: at least one antenna fixture capable of forming beams toward the cell site; and a radio sub-system capable of modulating and transmitting signals and demodulating and decoding signals.
摘要翻译： 描述了空对地（ATG）宽带接入系统。 该系统包括：多个小区站点，其一起形成服务覆盖区域，每个小区站点适于生成本地覆盖区域，每个销售站点包括：位于本地覆盖区域的下角的多个天线固定装置，其中本地 覆盖区域包括多个扇区，并且每个天线固定装置与彼此天线固定装置的不同扇区相关联; 以及连接到每个天线固定装置的无线电子系统，所述无线电子系统包括能够通过天线装置调制和发送信号的发射机和能够解调和解码通过天线固定装置接收的信号的接收机; 以及至少一个空中平台，包括：至少一个天线固定装置，其能够朝向所述小区站点形成波束; 以及能够调制和发送信号以及解调和解码信号的无线电子系统。
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10.发明申请Unmanned Aerial Vehicle Communication Using Distributed Antenna Placement and Beam Pointing 审中-公开使用分布式天线放置和光束指向的无人飞行器通信公开(公告)号：US20150237569A1
公开(公告)日：2015-08-20
申请号：US14609207
申请日：2015-01-29
申请人： Ahmad Jalali
发明人： Ahmad Jalali
CPC分类号： H04B7/18504 , B64C39/024 , B64C2201/122 , H04B7/1555 , H04B7/18506 , H04B7/18528 , H04B7/18539 , H04B7/18541 , H04B7/18543 , H04B7/18554 , H04B7/18578 , H04W24/02 , H04W36/0005 , H04W36/0016 , H04W36/0083 , H04W36/12 , H04W36/30 , H04W36/36 , H04W48/16 , H04W84/005 , H04W84/06 , H04W88/16 , Y02D70/00 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/164 , Y02D70/446
摘要： A communication system is described. The system includes: at least one gateway able to provide broadband connectivity, a set of ground terminals, and a set of aerial platforms, where at least one aerial platform is able to communicate with at least one gateway using radio frequencies, each aerial platform is able to communicate with ground terminals using radio frequencies, and each aerial platform is able to communicate with each other aerial platform using radio frequencies. An automated method for determining a beam direction for communication among UAVs includes: dividing a space around the UAV into multiple sub-regions, and, iteratively: selecting a sub-region from among the multiple sub-regions; pointing a signal toward the sub-region; and determining whether a signal is received from another UAV, until all sub-regions from among the multiple sub-regions have been selected.
摘要翻译： 描述通信系统。 该系统包括：能够提供宽带连接的至少一个网关，一组接地终端和一组高空作业平台，其中至少一个空中平台能够使用无线电频率与至少一个网关通信，每个空中平台是 能够使用无线电频率与地面终端通信，并且每个空中平台能够使用无线电频率与彼此的空中平台通信。 用于确定UAV之间的通信的波束方向的自动化方法包括：将UAV周围的空间划分成多个子区域，并且迭代地：从多个子区域中选择子区域; 指向子区域的信号; 以及确定是否从另一UAV接收到信号，直到所述多个子区域中的所有子区域被选择为止。
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