Enhanced CSI feedback for FD-MIMO

    公开(公告)号:US11611378B2

    公开(公告)日:2023-03-21

    申请号:US17028974

    申请日:2020-09-22

    摘要: Enhanced channel state information (CSI) feedback is disclosed for full dimensional multiple input, multiple output (FD-MIMO) operations. In one aspect, a single CSI process is defined that is configured with an azimuth and elevation CSI-reference signal (RS) ports. A user equipment (UE) will send a precoding matrix indictor (PMI) report including a precoding matrix indicator (PMI) for the azimuth ports and a PMI for the elevation ports. One of the PMIs is assigned a low rank. The base station will use the two PMIs to create a whole channel precoding matrix. In another aspect, a single CSI process is configured having a plurality of CSI-RS resources. The UE generates channel measurement information for each of the CSI-RS resources, but only sets a CSI report to the base station of a subset of the total number of resources.

    Systems and methods for granular user equipment location determination using quantum computing

    公开(公告)号:US11368211B1

    公开(公告)日:2022-06-21

    申请号:US17159942

    申请日:2021-01-27

    摘要: Embodiments described herein provide for the granular network-based detection of UE location in a RAN that includes one or more mobile base stations using quantum computing. Mobile base stations may be, for example, affixed on vehicles (e.g., cars, trucks, drones, etc.), may be implemented by other UEs, and/or may otherwise be non-stationary. In contrast, fixed base stations may be mounted to towers, buildings, or other types of permanent or semi-permanent installations. Quantum computing techniques, as described herein, may aid in the precise determination of UE location using triangulation techniques and/or other network-based location techniques. Further, in RANs that include mobile base stations, the locations of both the UE and a reference point may change relatively rapidly. The use of quantum computing, as described herein, may aid in the fast and precise determination of UE location in situations where mobile base stations and/or UEs are moving rapidly.

    System and method for pulsed based receiver photo sensor

    公开(公告)号:US10122473B2

    公开(公告)日:2018-11-06

    申请号:US15463566

    申请日:2017-03-20

    摘要: A photoelectric sensor uses a selective pulse detection technique and associated synchronization techniques to improve the quality of pulse detection, the operating range of the sensor, and the sensor's immunity to noise. These improvements also yield faster sensor response times and reduce the design cycle time. A modulated light beam emitted by the sensor's emitter comprises multiple pulse periods, with a pulse being transmitted within each period. The pulses are positioned within their respective periods at a defined offset time relative to the start of the periods, where the offset time can vary between periods according to a defined pattern. The receiver can selectively sample the signal based on synchronization information to determine whether the received signal contains the emitted pulse pattern. Through-beam sensor embodiments can generate the synchronization information internally based on an analysis of the analog signal corresponding to the modulated signal.

    System and method for air-to-ground single frequency networking

    公开(公告)号:US10084529B1

    公开(公告)日:2018-09-25

    申请号:US15669648

    申请日:2017-08-04

    摘要: A system and related method for minimizing co-channel interference in air-to-ground single-frequency networking includes aircraft-based directional and omnidirectional antenna arrays for transmitting to single frequency networks (SFN) (e.g., LTE, HSPA) and their cell sites. The directional array may encompass several cell sites to take advantage of C-RAN architectures. The system may default to the directional array to establish or re-establish network access, identifying accessible networks and sites and monitoring corresponding synchronization cell counts. The system may minimize co-channel interference with terrestrial network users by switching to the directional array if the count of accessible cell sites or networks becomes high enough, or due to additional factors (e.g., climbing above a threshold altitude). Similarly, the system may switch to the omnidirectional array if the cell count drops below a threshold level.

    ENHANCED CSI FEEDBACK FOR FD-MIMO
    5.
    发明申请

    公开(公告)号:US20170331535A1

    公开(公告)日:2017-11-16

    申请号:US15531131

    申请日:2015-01-19

    摘要: Enhanced channel state information (CSI) feedback is disclosed for full dimensional multiple input, multiple output (FD-MIMO) operations. In one aspect, a single CSI process is defined that is configured with an azimuth and elevation CSI-reference signal (RS) ports. A user equipment (UE) will send a precoding matrix indictor (PMI) report including a precoding matrix indicator (PMI) for the azimuth ports and a PMI for the elevation ports. One of the PMIs is assigned a low rank. The base station will use the two PMIs to create a whole channel precoding matrix. In another aspect, a single CSI process is configured having a plurality of CSI-RS resources. The UE generates channel measurement information for each of the CSI-RS resources, but only sets a CSI report to the base station of a subset of the total number of resources.

    System and method for determining and controlling gain margin in an RF repeater
    7.
    发明授权
    System and method for determining and controlling gain margin in an RF repeater 有权
    用于确定和控制RF中继器中增益裕度的系统和方法

    公开(公告)号:US08948687B2

    公开(公告)日:2015-02-03

    申请号:US12635887

    申请日:2009-12-11

    CPC分类号: H04B7/15578

    摘要: An apparatus for repeating signals includes a receive antenna for capturing a receive signal, processing circuitry for processing the receive signal to form a repeated signal, and a transmit antenna for transmitting the repeated signal. The processing circuitry includes gain circuitry for gain in the repeated signal and decorrelation circuitry configured for modifying the repeated signal with respect to the receive signal to thereby decorrelate the repeated signal from the receive signal. The processing circuitry further comprises circuitry configured for calculating a gain margin for the apparatus utilizing the decorrelated receive and repeated signals.

    摘要翻译: 用于重复信号的装置包括用于捕获接收信号的接收天线,用于处理接收信号以形成重复信号的处理电路,以及用于发送重复信号的发射天线。 处理电路包括增益电路,用于重复信号中的增益和解相关电路,其被配置用于相对于接收信号修改重复信号,从而去除来自接收信号的重复信号。 处理电路还包括被配置为利用去相关的接收和重复信号来计算设备的增益裕度的电路。

    Incoming signal sampling device
    8.
    发明授权
    Incoming signal sampling device 有权
    进入信号采样装置

    公开(公告)号:US08928509B2

    公开(公告)日:2015-01-06

    申请号:US14059980

    申请日:2013-10-22

    发明人: Benoit Gorisse

    摘要: A sampling device for sampling an incoming signal in order to generate an output signal having a different frequency spectrum from the incoming signal. The device comprises a sampler configured to sample the incoming signal at a series of intervals in time, wherein the series of intervals includes a temporally repeating sequence of intervals, and wherein the duration of successive intervals varies throughout the series.

    摘要翻译: 一种采样装置,用于对输入信号进行采样,以产生具有与输入信号不同的频谱的输出信号。 该装置包括被配置成以一系列时间间隔对输入信号进行采样的采样器,其中所述一系列间隔包括时间上重复的间隔序列,并且其中连续间隔的持续时间在整个系列中变化。

    Wideband low latency repeater and methods
    9.
    发明授权
    Wideband low latency repeater and methods 有权
    宽带低延迟中继器和方法

    公开(公告)号:US08761233B2

    公开(公告)日:2014-06-24

    申请号:US13492625

    申请日:2012-06-08

    CPC分类号: G01S7/021 G01S7/38

    摘要: A signal repeater (200) includes a signal processing part (202) and a signal repeating part (204). The signal processing part includes a converter (300) configured to receive an input signal and to convert the input signal into quadrature signals, and a processor (302, 304, 306) configured to process the quadrature signals to determine one or more characteristics of the input signal, and to compare the one or more characteristics of the input signal and a plurality of predetermined characteristics to generate a comparison result. The signal repeating part (204) is configured to selectively repeat the input signal as a repeated signal in accordance with the comparison result.

    摘要翻译: 信号中继器(200)包括信号处理部分(202)和信号重复部分(204)。 信号处理部分包括被配置为接收输入信号并将输入信号转换为正交信号的转换器(300),以及配置成处理正交信号以确定一个或多个特征的处理器(302,304,306) 输入信号,并且比较输入信号的一个或多个特性和多个预定特性以产生比较结果。 信号重复部分(204)被配置为根据比较结果选择性地重复输入信号作为重复信号。

    SAMPLING DEVICE
    10.
    发明申请
    SAMPLING DEVICE 有权
    采样设备

    公开(公告)号:US20140119412A1

    公开(公告)日:2014-05-01

    申请号:US14059980

    申请日:2013-10-22

    发明人: Benoit Gorisse

    IPC分类号: H04B7/17 H04L25/24

    摘要: A sampling device for sampling an incoming signal in order to generate an output signal having a different frequency spectrum from the incoming signal. The device comprises a sampler configured to sample the incoming signal at a series of intervals in time, wherein the series of intervals includes a temporally repeating sequence of intervals, and wherein the duration of successive intervals varies throughout the series.

    摘要翻译: 一种采样装置,用于对输入信号进行采样,以产生具有与输入信号不同的频谱的输出信号。 该装置包括被配置成以一系列时间间隔对输入信号进行采样的采样器,其中所述一系列间隔包括时间上重复的间隔序列,并且其中连续间隔的持续时间在整个系列中变化。