公开(公告)号：US20240137920A1

公开(公告)日：2024-04-25

申请号：US18383224

申请日：2023-10-23

Applicant: Ahmad Jalali

Inventor： Ahmad Jalali

IPC: H04W72/0453 ,  H04W72/541

CPC classification number: H04W72/0453 ,  H04W72/541

Abstract: 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.

公开(公告)号：US11382139B2

公开(公告)日：2022-07-05

申请号：US16900572

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: 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 acknowledgement comprises a preamble, spread using a pseudo-noise sequence specific to each BS.

公开(公告)号：US11304238B2

公开(公告)日：2022-04-12

申请号：US16913995

申请日：2020-06-26

Applicant: Ahmad Jalali ,  Kasra Jalali

Inventor： Ahmad Jalali ,  Kasra Jalali

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

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 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. 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：US20210392689A1

公开(公告)日：2021-12-16

申请号：US16900585

申请日：2020-06-12

Applicant: Ahmad Jalali

Inventor： Ahmad Jalali

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

Abstract: In idle mode, User Equipment (UE) measures the changes in the UE's orientation and position location coordinates using sensors such as accelerometers, gyroscopes, and magnetometers. UE computes a metric of the changes in the UE's orientation and position location, and triggers a beam update process if the magnitude of the metric is above a threshold. UE begins the beam update process by sending a message to the Base Station (BS) with which it is communicating. BS estimates the Angle of Arrival (AoA) of the received message, forms a dedicated downlink beam toward the UE at the estimated AoA, and sends an acknowledgement on the dedicated downlink beam. The UE carries out a spatial search of the received acknowledgement, estimates the UE beam angular pointing position on which the highest signal quality is received, and points its beam toward the BS at the estimated UE beam angular pointing position.

公开(公告)号：US20150280812A1

公开(公告)日：2015-10-01

申请号：US14228640

申请日：2014-03-28

Applicant: Ahmad Jalali

Inventor： Ahmad Jalali

IPC: H04B7/185

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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20150236779A1

公开(公告)日：2015-08-20

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

Abstract translation: 本公开描述了使用无人机/无人机网络为家庭和企业提供宽带因特网接入的系统和方法。 无人机通信系统由天线子系统，无线电子系统和数据交换子系统组成。 无人机在空分多址方案中形成和点射到不同区域的接地终端。 接地端子由天线子系统和无线电子系统组成。 地面终端搜索无人机，从那里他们收到最强的信号。 无人机和接地端子包括用于校准接收和发射天线元件的方法和系统。 无人机无线电子系统跟踪无人机的位置和方位变化，并相应地调整无人机的天线波束，以指向无人机移动时在地面上的相同位置。 根据无人机的位置和方位的变化，无人机无线电子系统可以将用于形成波束的天线孔和/或天线固定装置切换到特定的接地终端。 无人机与终端使用空间和时分倍数进行通信

公开(公告)号：US09008049B2

公开(公告)日：2015-04-14

申请号：US13609727

申请日：2012-09-11

Applicant: Bin Tian ,  Alok K. Gupta ,  Ahmad Jalali

Inventor： Bin Tian ,  Alok K. Gupta ,  Ahmad Jalali

IPC: H04J3/16 ,  H04W4/00 ,  H04W72/04 ,  H04W52/02 ,  H04W28/02

CPC classification number: H04J3/1694 ,  H04W4/70 ,  H04W28/0215 ,  H04W52/0216 ,  H04W52/0219 ,  H04W72/0406 ,  H04W72/0446 ,  Y02D70/21

Abstract: Methods, systems, and devices are described for managing wireless communications in a machine-to-machine (M2M) wireless Wide Area Network (WAN). A physical layer frame is generated. The frame being used for wireless M2M communications on a forward link in the M2M wireless WAN. The frame including no more than three channels. The physical layer frame including a first channel including paging channel, a second channel including a traffic channel, and a third channel including an acknowledgment (ACK) channel. A time division multiplexing (TDM) operation is performed on pilot symbols and data symbols to obtain a TDM pilot burst. At least one TDM pilot burst is inserted into each channel of the physical layer frame. The physical layer frame is transmitted on the forward link at a low data rate.

Abstract translation: 描述了用于管理机器对机器（M2M）无线广域网（WAN）中的无线通信的方法，系统和设备。 生成物理层帧。 该帧用于在M2M无线WAN中的前向链路上的无线M2M通信。 该框架不超过三个通道。 物理层帧包括包括寻呼信道的第一信道，包括业务信道的第二信道和包括确认（ACK）信道的第三信道。 对导频符号和数据符号执行时分复用（TDM）操作以获得TDM导频突发。 至少一个TDM导频突发被插入到物理层帧的每个信道中。 物理层帧以低数据速率在前向链路上传输。

公开(公告)号：US08848548B2

公开(公告)日：2014-09-30

申请号：US12535537

申请日：2009-08-04

Applicant: Ahmad Jalali ,  Leonard N. Schiff ,  William G. Ames

Inventor： Ahmad Jalali ,  Leonard N. Schiff ,  William G. Ames

IPC: H04L12/26 ,  H04N21/6405 ,  H04L29/06 ,  H04W28/12 ,  H04L12/801 ,  H04W28/22 ,  H04N21/414 ,  H04L12/853 ,  H04L12/825 ,  H04N21/61 ,  H04N21/44 ,  H04N21/6408 ,  H04L12/835 ,  H04N21/234 ,  H04N21/6373 ,  H04W4/06 ,  H04H60/91 ,  H04H20/71 ,  H04W24/00 ,  H04W8/24

CPC classification number: H04N21/23406 ,  H04H20/71 ,  H04H60/91 ,  H04L47/10 ,  H04L47/14 ,  H04L47/15 ,  H04L47/2416 ,  H04L47/263 ,  H04L47/30 ,  H04L65/4076 ,  H04N21/41407 ,  H04N21/44004 ,  H04N21/6125 ,  H04N21/6131 ,  H04N21/6373 ,  H04N21/6405 ,  H04N21/6408 ,  H04W4/06 ,  H04W8/24 ,  H04W24/00 ,  H04W28/12 ,  H04W28/22 ,  Y10T70/5969 ,  Y10T70/7774

Abstract: Aspects describe utilizing the Internet capability in mobile devices/networks to deliver broadcast multimedia to a device. The broadcast can be video, audio, and so forth. Initially the broadcast multimedia is transmitted at high data rates (and in unicast mode) in order for a buffer associated with mobile device to be built to a very long buffer length. When the long buffer length is reached, the multimedia can be delivered at real-time rates. The multimedia delivered at real times rates can be unicast mode or in multicast mode. If the buffer is depleted, a mobile device that is part of a multicast group can autonomously disassociated from the group until the buffer length is restored.

Abstract translation: 方面描述了利用移动设备/网络中的互联网能力将广播多媒体传送到设备。 广播可以是视频，音频等等。 最初，以高数据速率（和单播模式）发送广播多媒体，以便将与移动设备相关联的缓冲器构建到非常长的缓冲器长度。 当达到长缓冲区长度时，多媒体可以实时传送。 以实时速率传送的多媒体可以是单播模式或组播模式。 如果缓冲区耗尽，作为组播组的一部分的移动设备可以自动地从组中解除关联，直到缓冲区长度恢复。

公开(公告)号：US08644170B2

公开(公告)日：2014-02-04

申请号：US11297853

申请日：2005-12-08

Applicant: Ahmad Jalali ,  Ivan Jesus Fernandez Corbaton

Inventor： Ahmad Jalali ,  Ivan Jesus Fernandez Corbaton

IPC: G01R31/08 ,  H04J11/00

CPC classification number: H04L5/006 ,  H04L1/0002 ,  H04L1/0021 ,  H04L1/0023 ,  H04L1/1819 ,  H04L5/0007 ,  H04L5/0046 ,  Y02D50/10

Abstract: Techniques to determine the rate for a data transmission in an OFDM system. The maximum data rate that may be reliably transmitted over a given multipath (non-flat) channel by the OFDM system is determined based on a metric for an equivalent (flat) channel. For the given multipath channel and a particular rate (which may be indicative of a particular data rate, modulation scheme, and coding rate), the metric is initially derived from an equivalent data rate and the particular modulation scheme. A threshold SNR needed to reliably transmit the particular data rate using the particular modulation scheme and coding rate is then determined. The particular rate is deemed as being supported by the multipath channel if the metric is greater than or equal to the threshold SNR. Incremental transmission is used to account for errors in the determined data rate.

Abstract translation: 确定OFDM系统中数据传输速率的技术。 基于等效（平坦）信道的度量来确定由OFDM系统在给定的多路径（非平坦）信道上可靠地发送的最大数据速率。 对于给定的多径信道和特定速率（其可以指示特定数据速率，调制方案和编码率），度量最初从等效数据速率和特定调制方案导出。 然后确定使用特定调制方案和编码速率可靠地发送特定数据速率所需的阈值SNR。 如果度量大于或等于阈值SNR，则特定速率被认为是由多径信道支持的。 增量传输用于解决确定的数据速率中的错误。

公开(公告)号：US20130044611A1

公开(公告)日：2013-02-21

申请号：US13210628

申请日：2011-08-16

Applicant: Ahmad Jalali ,  Leonard N. Schiff ,  William G. Ames

Inventor： Ahmad Jalali ,  Leonard N. Schiff ,  William G. Ames

IPC: H04B7/185 ,  H04W24/00

CPC classification number: H04B7/18508 ,  H04B7/18502 ,  H04W16/14 ,  H04W36/20 ,  H04W36/30

Abstract: An air to ground communication system provides internet access to aircraft from ground based stations. The air to ground system shares spectrum with uplink portions of a satellite communication spectrum. Interference mitigation techniques are employed to avoid interference between the ground based communications and satellite communications. Fade mitigation techniques are employed to provide communication to aircraft at low angles of elevation in the presence of rain.

Abstract translation: 空对地通信系统提供从地面站到飞机的互联网接入。 空对地系统与卫星通信频谱的上行链路部分共享频谱。 采用干扰减轻技术来避免基于地面的通信和卫星通信之间的干扰。 采用褪色减轻技术来在雨下的情况下以低仰角向飞机提供通信。