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    Methods and apparatus for using mobile devices as location anchor points
    1.
    发明授权
    Methods and apparatus for using mobile devices as location anchor points 有权

    公开(公告)号：US11856550B2

    公开(公告)日：2023-12-26

    申请号：US17457864

    申请日：2021-12-06

    Applicant: QUALCOMM Incorporated

    Inventor： Aleksandar Jovicic ,  Thomas Joseph Richardson ,  Cyril Measson

    IPC: H04W64/00 ,  G01S5/00 ,  G01S13/87 ,  H04W88/04 ,  H04W76/14

    CPC classification number: H04W64/00 ,  G01S5/0027 ,  G01S13/878 ,  H04W76/14 ,  H04W88/04

    Abstract: Mobile devices are used as temporary location anchor points, e.g., to supplement fixed location permanent location anchor points, in a wireless communications system in which mobile device locations are determined. A mobile device receives a command or request to operate as a location anchor point. In some embodiments, the command includes time information indicating the amount of time the mobile device is to operate as a location anchor point. In some embodiments, a mobile device operating as a location anchor point reports a received signal strength measurement along with information identifying the device from which the signal was received to a network element, e.g., a location server node. In some embodiments, a mobile device operating as a location anchor point broadcasts a signal providing location information. The mobile device receives compensation for operating as a location anchor point. Compensation may be monetary, services, or benefits provided by the network.

    Transmission of identifiers using visible light communication
    2.
    发明授权
    Transmission of identifiers using visible light communication 有权

    公开(公告)号：US10009100B2

    公开(公告)日：2018-06-26

    申请号：US14742185

    申请日：2015-06-17

    Applicant: QUALCOMM Incorporated

    Inventor： Aleksandar Jovicic ,  Mahadevi Pillai Perumal

    IPC: H04B10/116 ,  H04B10/114 ,  H04L7/04 ,  H05B33/08

    CPC classification number: H04B10/116 ,  H04B10/1141 ,  H04L7/041 ,  H05B33/0845

    Abstract: Methods, systems, and devices are described for transmitting an identifier using visible light communication (VLC) and for generating a plurality of identifiers for transmission using VLC. Input identifying an illumination factor associated with a light source is received. A first set of modulation parameters is modified for transmitting the identifier using VLC. The first set of modulation parameters is modified based on the illumination factor. A signal, in which the identifier is encoded, is applied to the light source. The signal is applied according to the first set of modulation parameters. Another method includes identifying a number of light transmitting devices, generating a plurality of identifiers based on the identified number of light transmitting devices, storing the generated identifiers, determining a plurality of cyclic shifts for each identifier in the plurality of identifiers, and removing identifiers from the plurality of identifiers that match the identified cyclic shifts.

    Method and apparatus for power-efficient joint dimming and visible light communication
    3.
    发明授权
    Method and apparatus for power-efficient joint dimming and visible light communication 有权

    公开(公告)号：US09979475B2

    公开(公告)日：2018-05-22

    申请号：US15052669

    申请日：2016-02-24

    Applicant: QUALCOMM Incorporated

    Inventor： Aleksandar Jovicic ,  Thomas Joseph Richardson ,  Junyi Li

    IPC: H04B10/116 ,  H04L7/00

    CPC classification number: H04B10/116 ,  H04L7/0075

    Abstract: A method, an apparatus, and a computer program product for communication are provided. The apparatus obtains a message for communication using visible light communication (VLC) through a light emitting diode (LED) luminary device and formats the message using a synchronization signal followed by one or more data signals. The synchronization signal and/or the one or more data signals are modulated using a Frequency Shift Keying (FSK) modulation scheme. The apparatus further receives a dimming level value associated with a brightness of light to be emitted from the LED luminary device, generates a waveform with frequencies based on the formatted message and a duty cycle for the LED luminary device based on the dimming level value, and sends the generated waveform to the LED luminary device for communication using VLC.

    METHODS AND APPARATUS FOR EFFICIENT JOINT POWER LINE AND VISIBLE LIGHT COMMUNICATION
    6.
    发明申请
    METHODS AND APPARATUS FOR EFFICIENT JOINT POWER LINE AND VISIBLE LIGHT COMMUNICATION 有权
    高效联合电源线和可见光通信的方法和装置

    公开(公告)号：US20150349887A1

    公开(公告)日：2015-12-03

    申请号：US14826279

    申请日：2015-08-14

    Applicant: QUALCOMM Incorporated

    Inventor： Aleksandar Jovicic ,  Junyi Li ,  Thomas Joseph Richardson

    IPC: H04B10/116 ,  H04B10/564 ,  H04B3/46 ,  H04B3/54 ,  H04B10/079

    CPC classification number: H04B10/116 ,  H04B3/46 ,  H04B3/542 ,  H04B10/07953 ,  H04B10/11 ,  H04B10/1143 ,  H04B10/1149 ,  H04B10/502 ,  H04B10/516 ,  H04B10/564 ,  H04L5/0057 ,  H04L12/66

    Abstract: A hybrid communications system implements different communication technologies to communicate data and information for particular communications directions in different portions of the system. Power line communications (PLC) signaling is used to deliver data and information from a gateway device to a light access point. Visible light communications (VLC) signaling is used to communicate data and information from the light access point to a user equipment (UE) device. Wireless radio signaling, wireless infrared (IR) signaling, or a combination of wireless IR signaling and PLC signaling is used to communicate data/information from the UE device to the gateway device. To efficiently control the VLC communications channel between the light access point and UE device, the UE device measures the VLC channel, e.g., calculating SNRs on a per VLC tone basis, and communicating VLC channel quality feedback information to the gateway device, which is forwarded to the light access point.

    Abstract translation: 混合通信系统实现不同的通信技术以在系统的不同部分中传送特定通信方向的数据和信息。 电力线通信（PLC）信令用于将数据和信息从网关设备传送到光接入点。 可见光通信（VLC）信令用于将来自光接入点的数据和信息传送到用户设备（UE）设备。 使用无线无线电信令，无线红外（IR）信令或无线IR信令和PLC信令的组合来将数据/信息从UE设备传送到网关设备。 为了有效地控制光接入点和UE设备之间的VLC通信信道，UE设备测量VLC信道，例如，以VLC音调为基础计算SNR，以及向转发的网关设备传送VLC信道质量反馈信息 到光接入点。

    Methods and apparatus for communications using visible light communications signaling in combination with wireless radio signaling
    7.
    发明授权
    Methods and apparatus for communications using visible light communications signaling in combination with wireless radio signaling 有权
    使用可见光通信信令与无线无线电信令相结合的通信方法和装置

    公开(公告)号：US09143230B2

    公开(公告)日：2015-09-22

    申请号：US13691753

    申请日：2012-12-01

    Applicant: QUALCOMM Incorporated

    Inventor： Lorenzo Casaccia ,  Junyi Li ,  Thomas Joseph Richardson ,  Aleksandar Jovicic

    IPC: H04L12/28 ,  H04B10/11 ,  H04B10/114 ,  H04B10/116

    CPC classification number: H04B10/11 ,  H04B10/1149 ,  H04B10/116

    Abstract: Various exemplary methods and apparatus are directed to using Visible Light Communication (VLC) in a downlink, e.g., a supplemental downlink, in combination with a wireless radio downlink/uplink pair. A gateway is coupled, via a wireline link, to a VLC access point. In some embodiments, the gateway includes a wireless radio base station. A user equipment device detects a visible light signal from the VLC access point, and transmits a radio signal to a communications device, e.g., a gateway including a base station or a macro base station, indicating that the UE device is in a VLC coverage area. The gateway configures the VLC access point to serve as a supplemental wireless cell which supports downlink communications. The gateway sends traffic signals to the VLC access point, via the wireline, which are converted by the VLC access point into VLC signals which are transmitted. The UE device receives VLC downlink traffic signals and transmits a corresponding acknowledgment signal via an uplink radio channel.

    Abstract translation: 各种示例性方法和装置涉及在下行链路（例如，补充下行链路）中结合无线无线电下行链路/上行链路使用可见光通信（VLC）。 网关通过有线链路耦合到VLC接入点。 在一些实施例中，网关包括无线无线电基站。 用户设备设备检测来自VLC接入点的可见光信号，并将无线电信号发送到通信设备，例如包括基站或宏基站的网关，指示UE设备在VLC覆盖区域 。 网关将VLC接入点配置为支持下行链路通信的补充无线小区。 网关通过有线线路向VLC接入点发送业务信号，该线路由VLC接入点转换为发送的VLC信号。 UE设备接收VLC下行业务信号，经由上行链路无线信道发送对应的确认信号。

    Transmission of identifiers using visible light communication
    8.
    发明授权
    Transmission of identifiers using visible light communication 有权

    公开(公告)号：US10382129B2

    公开(公告)日：2019-08-13

    申请号：US15987692

    申请日：2018-05-23

    Applicant: QUALCOMM Incorporated

    Inventor： Aleksandar Jovicic ,  Mahadevi Pillai Perumal

    IPC: H04B10/116 ,  H04B10/114 ,  H04L7/04 ,  H05B33/08

    Abstract: Methods, systems, and devices are described for transmitting an identifier using visible light communication (VLC) and for generating a plurality of identifiers for transmission using VLC. Input identifying an illumination factor associated with a light source is received. A first set of modulation parameters is modified for transmitting the identifier using VLC. The first set of modulation parameters is modified based on the illumination factor. A signal, in which the identifier is encoded, is applied to the light source. The signal is applied according to the first set of modulation parameters. Another method includes identifying a number of light transmitting devices, generating a plurality of identifiers based on the identified number of light transmitting devices, storing the generated identifiers, determining a plurality of cyclic shifts for each identifier in the plurality of identifiers, and removing identifiers from the plurality of identifiers that match the identified cyclic shifts.

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