公开(公告)号：US06173183B2

公开(公告)日：2001-01-09

申请号：US09118122

申请日：1998-07-16

Applicant: Marwan Abu-Amara ,  Steve Sides ,  Ahmad Jalali ,  Jyoti Boppana ,  Satyajit Doctor

Inventor： Marwan Abu-Amara ,  Steve Sides ,  Ahmad Jalali ,  Jyoti Boppana ,  Satyajit Doctor

IPC: H04Q720

CPC classification number: H04W36/12 ,  H04W36/18

Abstract: The present invention facilitates an inter-mobile switching center (MSC) soft hand-off by creating a communication link between the MSCs through the base station controllers (BSCs). The routers in the BSCs are linked to form a virtual router. This faster link between the BSCs enables the same protocol to be used for intra-MSC soft hand-off used for inter-MSC soft hand-off.

Abstract translation: 本发明通过在MSC之间通过基站控制器（BSC）建立通信链路来促进移动间交换中心（MSC）软切换。 BSC中的路由器链接形成虚拟路由器。 BSC之间的这种更快的链路使得能够使用相同的协议来进行用于MSC间切换的MSC间切换。

公开(公告)号：US5963870A

公开(公告)日：1999-10-05

申请号：US932254

申请日：1997-09-17

Applicant: Ashvin Chheda ,  Michael S. Feeney ,  Ahmad Jalali

Inventor： Ashvin Chheda ,  Michael S. Feeney ,  Ahmad Jalali

IPC: H04B7/005 ,  H04Q7/20

CPC classification number: H04W52/143 ,  H04W52/40 ,  H04W52/12 ,  H04W52/282

Abstract: The power control process switches between IS-95 forward power control and fast forward power control using either speed or hand-off status information from the mobile radiotelephone. If the received information indicates either a slower speed or the number of communication links is less than a predetermined number, the fast forward power control process is used. If the received information indicates either a fast speed or the number of links is greater than or equal to the predetermined number (the radiotelephone is in a hand-off situation), the forward power control process is used.

Abstract translation: 功率控制过程使用移动无线电话机的速度或切换状态信息在IS-95正向功率控制和快速功率控制之间切换。 如果接收到的信息指示较慢的速度或通信链路的数量小于预定数量，则使用快进功率控制处理。 如果接收到的信息指示快速或链路数量大于或等于预定数量（无线电话机处于越区切换状态），则使用正向功率控制处理。

公开(公告)号：US11503649B2

公开(公告)日：2022-11-15

申请号：US16900466

申请日：2020-06-12

Applicant: Ahmad Jalali

Inventor： Ahmad Jalali

IPC: H04W74/08 ,  H04W76/10 ,  H04L5/00 ,  H04L1/18 ,  H04W24/08 ,  H04W36/30

Abstract: The User Equipment (UE) initiates initial access by transmitting an uplink reference signal on at least one UE beam. Each Base Station (BS) carries out a spatial search of detected uplink reference signals, estimates the Angle of Arrival (AoA) of the uplink reference signals, forms a dedicated downlink beam toward the UE at the estimated AoA, and sends an acknowledgement for the uplink reference signal on the dedicated downlink beam. The UE carries out a spatial search of the received acknowledgement, and identifies the UE beam angular pointing position, from which receives the acknowledgement with the highest signal quality, as the UE beam boresight toward the BS. The UE sends a connection setup request message to the BS on the identified UE beam boresight. The uplink reference signals and acknowledgements comprise a single preamble, effectively carrying one bit of information, or carry a small payload.

公开(公告)号：US20200329509A1

公开(公告)日：2020-10-15

申请号：US16913995

申请日：2020-06-26

Applicant: Ahmad Jalali ,  Kasra Jalali

Inventor： Ahmad Jalali ,  Kasra Jalali

IPC: H04W74/08 ,  H04L5/00 ,  H04W76/10

Abstract: In a beamforming system, each User Equipment (UE) transmits an uplink probe. Each Base Station (BS) carries out a spatial search of the uplink probes, estimates an Angle of Arrival (AoA) of the uplink probe received from each UE, and estimates the uplink channel frequency response of the uplink probe received on an uplink dedicated beam formed toward the UE's AoA. The BS transmits a reference signal to each UE on a downlink dedicated beam formed toward the UE's AoA, from which the UE estimates the downlink frequency response. The UE forms channel impulse response matrices for the uplink and the downlink, using the estimated uplink and downlink channel frequency responses between each UE and the BS. The BS uses the channel impulse response matrices to form downlink and uplink dedicated beams that put boresight of the beams toward the AoA of one UE and put nulls toward the AoAs of the other UEs.

公开(公告)号：US10567070B2

公开(公告)日：2020-02-18

申请号：US16205700

申请日：2018-11-30

Applicant: Ahmad Jalali

Inventor： Ahmad Jalali

IPC: H04B7/185 ,  H04W4/00 ,  H04B1/00 ,  H04W16/28 ,  H04W72/08 ,  H04W72/04 ,  H04L25/00 ,  H04W24/02 ,  H04W84/00

Abstract: A terrestrial communications network for providing broadband internet access to aerial platforms is described. In some embodiments, the cell site sector communications equipment comprises of at least two radio modules and two antenna apertures, the cell site transmits data to an aerial platform on only one antenna aperture, but receives from the aerial platform on all antenna apertures. In some embodiments, the cell site communications equipment divides each of the N data packet streams destined to N aerial platforms into multiple data packet sub-streams and sends each data packet sub-stream of an aerial platform on a different antenna aperture using a different frequency channel or antenna polarization, forming N beams from each antenna aperture, one beam toward each aerial platform.

公开(公告)号：US09853712B2

公开(公告)日：2017-12-26

申请号：US14223705

申请日：2014-03-24

Applicant: Ahmad Jalali

Inventor： Ahmad Jalali

IPC: H04B7/185 ,  H04W16/28

CPC classification number: H04B7/18504 ,  H04B7/18508 ,  H04W16/28

Abstract: The present disclosure describes the system and methods for providing broadband internet access to homes and enterprises using a network of drones/UAVs. The drone communication system is composed of an antenna sub-system, a radio sub-system and a data switching sub-system. Drones form and point beams toward ground terminals in different areas in a space division multiple access scheme. Ground terminals are composed of an antenna sub-system and a radio sub-system. Ground terminals search for the drone from which they receive the strongest signals. Drone and ground terminals comprise of methods and systems to calibrate receive and transmit antenna elements. Drone radio sub-system keeps track of the drone's position and orientation changes and adjust drone's antenna beam accordingly to point to the same location on the ground as the drone moves. Depending on the changes in drone's position and orientation, the drone radio sub-system may switch the antenna aperture and/or the antenna fixture that is used to form a beam toward a specific ground terminal. Drones communicate with the terminals using a space and time division multiple access scheme.

公开(公告)号：US20170041763A1

公开(公告)日：2017-02-09

申请号：US14533756

申请日：2014-11-05

Applicant: Ahmad Jalali

Inventor： Ahmad Jalali

IPC: H04W4/04 ,  G01S5/02 ,  H04W64/00

CPC classification number: H04W4/046 ,  G01S5/02 ,  G01S5/14 ,  G01S13/876 ,  G06Q10/0833 ,  H04B7/18502 ,  H04W64/003

Abstract: 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.

Abstract translation: 描述了一种确定空中平台位置的自动化方法。 该方法包括：从空中平台发送第一导频信号; 在一组地面装置处接收第一导频信号; 基于与所述第一导频信号相关联的测量来确定第一组值; 以及至少部分地基于所述第一组值来计算所述空中平台的位置。 适于确定接地设备的位置的自动化方法包括：从地面设备发送第一导频信号; 在一组高空作业平台中的每个空中平台处接收第一导频信号; 基于与所述第一导频信号相关联的测量来确定第一组值; 以及至少部分地基于所述第一组值来计算所述地面设备的位置。 描述适于提供位置信息的系统。

公开(公告)号：US09295006B2

公开(公告)日：2016-03-22

申请号：US13168617

申请日：2011-06-24

Applicant: Ahmad Jalali ,  Mohammad A. Tassoudji ,  Ernest T. Ozaki ,  William G. Ames ,  Leonard N. Schiff

Inventor： Ahmad Jalali ,  Mohammad A. Tassoudji ,  Ernest T. Ozaki ,  William G. Ames ,  Leonard N. Schiff

IPC: H04M1/00 ,  H04B15/00 ,  H04B7/00 ,  H04W52/24 ,  H01Q1/22 ,  H01Q1/24 ,  H01Q1/28 ,  H01Q3/24 ,  H01Q3/26 ,  H01Q13/02 ,  H01Q21/06 ,  H01Q21/20 ,  H01Q25/00 ,  H04B7/185 ,  H04W84/00

CPC classification number: H04W52/241 ,  H01Q1/2291 ,  H01Q1/246 ,  H01Q1/28 ,  H01Q3/24 ,  H01Q3/26 ,  H01Q13/02 ,  H01Q21/062 ,  H01Q21/205 ,  H01Q25/00 ,  H04B7/18506 ,  H04W84/005

Abstract: A method for real-time calibration of an air to ground two-way communication system. The method includes calibrating a ground base station antenna array according to forward link calibration coefficients received from an aircraft as part of a communication signaling protocol during operation of the air to ground two-way communication system. The method may also includes communicating between the ground base station antenna array and the aircraft over a narrow beam.

Abstract translation: 一种空对地双向通信系统的实时校准方法。 该方法包括在空对地双向通信系统的操作期间，根据从飞机接收的前向链路校准系数校准地面基站天线阵列作为通信信令协议的一部分。 该方法还可以包括在窄波束上的地面基站天线阵列和飞行器之间的通信。

公开(公告)号：US20150304810A1

公开(公告)日：2015-10-22

申请号：US14753469

申请日：2015-06-29

Applicant: Ahmad Jalali ,  Dhinakar Randakrishnan ,  Mehran Baghaei

Inventor： Ahmad Jalali ,  Dhinakar Randakrishnan ,  Mehran Baghaei

IPC: H04W4/02 ,  H04W56/00

CPC classification number: H04W4/02 ,  G01S5/14 ,  G06K7/10009 ,  H04W56/001 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144

Abstract: A position location system based on a wireless local area network such as an IEEE 802.11 network is described. The system determines position of mobile tags attached to assets or people. IEEE 802.11 enabled zone tags are installed to assist in positioning. The system aligns frame timing of zone tags to that of an associated basic service set (BSS). The system computes the frame timing offsets between adjacent BSSs, and utilizes the frame timing offsets in scheduling range measurements between zone tags and mobile tags. A set of zone tags which are in close proximity of a first zone tag and able to receive signals from the first zone tag is identified. Frame timing of all zone tags in a network are aligned.

Abstract translation: 描述了基于诸如IEEE 802.11网络的无线局域网的位置定位系统。 系统确定附加到资产或人员的移动标签的位置。 安装了IEEE 802.11的区域标签以协助定位。 系统将区域标签的帧定时与相关联的基本服务集（BSS）的帧定时对齐。 系统计算相邻BSS之间的帧定时偏移，并且在区域标签和移动标签之间的调度范围测量中利用帧定时偏移。 识别紧邻第一区标签并且能够接收来自第一区标签的信号的一组区标签。 网络中所有区域标签的帧定时对齐。

公开(公告)号：US20150280806A1

公开(公告)日：2015-10-01

申请号：US14337149

申请日：2014-07-21

Applicant: Ahmad Jalali

Inventor： Ahmad Jalali

IPC: H04B7/155 ,  H04W40/22

CPC classification number: H04B7/18506 ,  H04B7/10 ,  H04W28/0226 ,  H04W28/0231 ,  H04W36/08 ,  H04W40/22 ,  H04W84/06

Abstract: A system for broadband access to airborne platforms is described. The system includes: a ground station with a number of antenna panels, each antenna panel having two polarizations; the ground station having multiple modems connected to the different antenna panels and a processor controlling the modems; and the aircraft equipment comprising of a modem attached to an antenna with two polarizations.

Abstract translation: 描述了一种用于宽带接入机载平台的系统。 该系统包括：具有多个天线面板的地面站，每个天线面板具有两个极化; 地面站具有连接到不同天线面板的多个调制解调器和控制调制解调器的处理器; 以及包括连接到具有两个偏振的天线的调制解调器的飞行器设备。