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.

公开(公告)号：US09867153B2

公开(公告)日：2018-01-09

申请号：US14866729

申请日：2015-09-25

Applicant: QUALCOMM Incorporated

Inventor： Junyi Li ,  Jay Rodney Walton ,  Thomas Joseph Richardson

IPC: H04W56/00 ,  H04W8/00 ,  H04W84/18

CPC classification number: H04W56/001 ,  H04W8/005 ,  H04W84/18 ,  Y02B70/32 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162 ,  Y02D70/164 ,  Y02D70/166 ,  Y02D70/21 ,  Y02D70/22

Abstract: This application relates to wireless communication systems, and more particularly to distributed synchronization of “internet of everything” (IoE) devices to a common timing through opportunistic synchronization with user equipment (UE). Multiple IoE devices within proximity to each other establish device to device (D2D) links. When an IoE device receives an updated timing synchronization signal from a UE, the IoE device can broadcast the updated timing synchronization signal to other IoE devices directly or via a multi-hop forwarding scheme via the D2D links. Multiple groups of IoE devices can be synchronized to the same timing synchronization signal such that if and when IoE devices from the different groups come into proximity, the IoE devices will find each other and can merge into a larger group of synchronized IoE devices with minimal searching overhead and, therefore, minimal power consumption.

公开(公告)号：US20170085354A1

公开(公告)日：2017-03-23

申请号：US14861604

申请日：2015-09-22

Applicant: QUALCOMM Incorporated

Inventor： Shrinivas Kudekar ,  Thomas Joseph Richardson ,  Xinzhou Wu ,  Junyi Li

IPC: H04L5/00 ,  H04L1/18

Abstract: Methods, systems, and devices are described for wireless communication. A transmitter may receive feedback that a station failed to decode a packet sent over a first channel, and the transmitter may determine to re-send the packet or to send parity bits over the first channel or over a second channel to assist in decoding the failed packet. The first channel may be in an unlicensed radio frequency spectrum, and the second channel may be in a licensed radio frequency spectrum and may have a higher reliability level compared to the first channel. The transmitter may determine a first channel degradation level, which may be based on a signal-to-noise ratio received from the station, and may determine an amount of parity bits to send based on the degradation. The transmitter may determine the reliability level of each channel, which may be based on a channel quality indicator.

公开(公告)号：US20170063398A1

公开(公告)日：2017-03-02

申请号：US14954702

申请日：2015-11-30

Applicant: QUALCOMM Incorporated

Inventor： Thomas Joseph Richardson ,  Michael George Luby

IPC: H03M13/15 ,  G06F11/10

CPC classification number: H03M13/154 ,  G06F11/008 ,  G06F11/1076 ,  G06F11/1088

Abstract: Systems and methods which implement repair bandwidth control techniques, such as may provide a feedback control structure for regulating repair bandwidth in the storage system. Embodiments control a source object repair rate in a storage system by analyzing source objects represented in a repair queue to determine repair rate metrics for the source objects and determining a repair rate based on the repair rate metrics to provide a determined level of recovery of source data stored as by the source objects and to provide a determined level of repair efficiency in the storage system. For example, embodiments may determine a per storage object repair rate (e.g., a repair rate preference for each of a plurality of source objects) and select a particular repair rate (e.g., a maximum repair rate) for use by a repair policy. Thereafter, the repair policy of embodiments may implement repair of one or more source objects in accordance with the repair rate.

Abstract translation: 实现修复带宽控制技术的系统和方法，例如可以提供用于调节存储系统中的修复带宽的反馈控制结构。 实施例通过分析维修队列中所表示的源对象来确定存储系统中的源对象修复率，以确定源对象的修复率度量，并基于修复率度量确定修复率，以提供确定的源数据恢复级别 由源对象存储并在存储系统中提供确定的修复效率水平。 例如，实施例可以确定每个存储对象修复率（例如，针对多个源对象中的每个源对象的修复率偏好），并且选择修复策略使用的特定修复率（例如，最大修复率）。 此后，实施例的维修策略可以根据修复率实施一个或多个源对象的修复。

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。

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。

公开(公告)号：US20130262961A1

公开(公告)日：2013-10-03

申请号：US13896104

申请日：2013-05-16

Applicant: Qualcomm Incorporated

Inventor： Thomas Joseph Richardson ,  Aamod Dinkar Khandekar

IPC: H03M13/13

CPC classification number: H03M13/13 ,  H03M13/1102 ,  H03M13/6306 ,  H04L1/0057 ,  H04L1/1819

Abstract: Systems and methodologies are described that facilitate transmitting low-density parity-check encoded communications in a wireless communications network and incrementing such codes in response to requests from receiving devices. The LDPC codes can have associated constraints allowing the codes to be error corrected upon receipt. The requests for incremented codes can be in cases of low transmission power or high interference, for example, where the original code can be too error-ridden to properly decode. In this case, additional nodes can be added to current and/or subsequent communications to facilitate adding a more complex constraint to the LDPC code. In this regard, the large codes can require less validly transmitted nodes to predict error-ridden values as the additional constraint renders less ambiguity in possible node value choices.

Abstract translation: 描述了有助于在无线通信网络中传送低密度奇偶校验编码通信并响应于来自接收设备的请求递增这些代码的系统和方法。 LDPC码可以具有相关联的约束，允许在接收时对代码进行纠错。 递增代码的请求可以是在低发送功率或高干扰的情况下，例如，其中原始代码可能太错误以便正确解码。 在这种情况下，可以将附加节点添加到当前和/或后续通信，以便于向LDPC码添加更复杂的约束。 在这方面，大代码可能需要较少有效传输的节点来预测误差值，因为附加约束使可能的节点值选择中的歧义更少。

公开(公告)号：US12256235B2

公开(公告)日：2025-03-18

申请号：US17395192

申请日：2021-08-05

Applicant: QUALCOMM Incorporated

Inventor： Navid Abedini ,  Junyi Li ,  Juergen Cezanne ,  Thomas Joseph Richardson

IPC: H04W16/28 ,  H04B7/04 ,  H04B7/155

Abstract: An assisting network device receives an incoming signal from a transmitting device. The assisting network device forwards the incoming signal to a receiving device in a beam direction based on a frequency of the incoming signal. A method of wireless communication by a first wireless device includes determining an indication of a frequency domain beam sweeping configuration of an assisting network device. The method communicates a signal with a second wireless device via the assisting network device in a beam direction based on a frequency of the signal. A method of wireless communication by a controlling entity determines a frequency domain beam sweeping configuration of an assisting network device. The method indicates the frequency domain beam sweeping configuration to a first wireless device, via the assisting network device, for communication with a second wireless device in a beam direction based on a frequency of an incoming signal.

公开(公告)号：US20240106516A1

公开(公告)日：2024-03-28

申请号：US17950899

申请日：2022-09-22

Applicant: QUALCOMM Incorporated

Inventor： Danlu Zhang ,  Naga Bhushan ,  Thomas Joseph Richardson

IPC: H04B7/06 ,  H01Q21/20 ,  H04B7/10

CPC classification number: H04B7/0697 ,  H01Q21/205 ,  H04B7/10

Abstract: Methods, systems, and devices for wireless communication are described. Some wireless communications systems may support orbital angular momentum (OAM) communications. A transmitting network node may generate signals for transmission via a first circular antenna array that includes a first quantity of antenna subarrays. The transmitting network node may transmit the signals using the first circular antenna array and based on OAM vectors. The receiving network node may receive and decode the signals using a second circular antenna array that includes a second quantity of antenna subarrays and based on the OAM vectors. The OAM vectors may be based on a numerical relationship between the first quantity and the second quantity. The numerical relationship may include the first quantity being equal to a product of the second quantity and a non-integer rational number and a greatest common divisor of the first and second quantities being an integer greater than one.

公开(公告)号：US11025276B2

公开(公告)日：2021-06-01

申请号：US16525307

申请日：2019-07-29

Applicant: QUALCOMM Incorporated

Inventor： Thomas Joseph Richardson ,  Shrinivas Kudekar

IPC: H03M13/00 ,  H03M13/11 ,  H03M13/03

Abstract: Certain aspects of the present disclosure generally relate to techniques for enhanced puncturing and low-density parity-check (LDPC) code structure. A method for wireless communications by a transmitting device is provided. The method generally includes encoding a set of information bits based on a LDPC code to produce a code word, the LDPC code defined by a base matrix having a first number of variable nodes and a second number of check nodes; puncturing the code word according to a puncturing pattern designed to puncture bits corresponding to at least two of the variable nodes to produce a punctured code word; adding at least one additional parity bit for the at least two punctured variable nodes; and transmitting the punctured code word.