公开(公告)号：US09462581B2

公开(公告)日：2016-10-04

申请号：US13653274

申请日：2012-10-16

Applicant: QUALCOMM Incorporated

Inventor： Jubin Jose ,  Xinzhou Wu ,  Sundar Subramanian ,  Junyi Li ,  Thomas Joseph Richardson

IPC: H04W72/04 ,  H04B7/04 ,  H04W28/06 ,  H04B7/06

CPC classification number: H04W72/042 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0617 ,  H04B7/0619 ,  H04W28/06

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be a serving base station. The serving base station receives channel feedback from a plurality of UEs. The channel feedback is based on predetermined phase rotations used by the serving base station. The serving base station selects at least one UE of the UEs for a data transmission based on the received channel feedback. The serving base station maps at least one data stream to a set of resource blocks. The serving base station transmits the set of resource blocks to the at least one UE with a phase rotation determined based on the predetermined phase rotations.

Abstract translation: 提供了一种用于无线通信的方法，装置和计算机程序产品。 该装置可以是服务基站。 服务基站从多个UE接收信道反馈。 信道反馈基于由服务基站使用的预定相位旋转。 服务基站基于接收的信道反馈来选择UE中的至少一个用于数据传输的UE。 服务基站将至少一个数据流映射到一组资源块。 服务基站将基于预定相位旋转确定的相位旋转的资源块集合发送给至少一个UE。

公开(公告)号：US20160269113A1

公开(公告)日：2016-09-15

申请号：US15164108

申请日：2016-05-25

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Jovicic ,  Junyi Li ,  Thomas Joseph Richardson

IPC: H04B10/116 ,  H04B10/50 ,  H04B10/516 ,  H04L12/66 ,  H04L5/00

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.

公开(公告)号：US09391699B2

公开(公告)日：2016-07-12

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 ,  H04B10/079 ,  H04B3/46 ,  H04B3/54 ,  H04B10/11 ,  H04B10/114

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.

公开(公告)号：US20160028477A1

公开(公告)日：2016-01-28

申请号：US14339170

申请日：2014-07-23

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Jovicic ,  Mahadevi Pillai Perumal ,  Thomas Joseph Richardson ,  Junyi Li

IPC: H04B10/116

CPC classification number: H04B10/116

Abstract: Methods, systems, and devices are described for deriving an identifier encoded in a visible light communication (VLC) signal. One method includes capturing a first part of the VLC signal; extracting, from the first part of the VLC signal, a first pattern of bits representing at least a portion of the identifier encoded in the VLC signal; comparing the first pattern of bits to different portions of a plurality of identifiers; and identifying, based at least in part on the comparing, a subset of the plurality of identifiers as candidate matches to the identifier encoded in the VLC signal.

Abstract translation: 描述了用于导出以可见光通信（VLC）信号编码的标识符的方法，系统和设备。 一种方法包括捕获VLC信号的第一部分; 从VLC信号的第一部分提取表示在VLC信号中编码的标识符的至少一部分的比特的第一模式; 将所述第一位模式与多个标识符的不同部分进行比较; 以及至少部分地基于所述比较来识别所述多​​个标识符的子集作为与所述VLC信号中编码的标识符的候选匹配。

公开(公告)号：US09112839B2

公开(公告)日：2015-08-18

申请号：US13726076

申请日：2012-12-22

Applicant: QUALCOMM Incorporated

Inventor： Thomas Joseph Richardson ,  Xinzhou Wu ,  Junyi Li ,  Sundar Subramanian

IPC: H04L29/08 ,  H04W28/02 ,  H04B7/02 ,  H04L1/00 ,  H04W84/18

CPC classification number: H04L67/06 ,  H04B7/026 ,  H04L1/0076 ,  H04L67/18 ,  H04L67/2842 ,  H04W28/021 ,  H04W28/0226 ,  H04W84/18

Abstract: Efficient methods for wirelessly communicating file content under varying conditions are described. A wireless device determines, based on mobility and/or geographic location, if the wireless device is to operate in a first mode of communication operation in which received portions of said file are re-transmitted or a second mode of communication operation in which combinations of portions of said file are transmitted. The wireless device transmits packets communicating received file portions when it is determined that the wireless device is to operate in said first mode of operation and transmits packets communicating combinations of file portions, e.g., linear combinations of file portions, when it is determined that the wireless device is to operate in said second mode of operation. The contents of a file may be obtained from some packets which communicate distinct portions of the file and other packets which communicate combinations of distinct portions of the file.

Abstract translation: 描述了在不同条件下无线传送文件内容的有效方法。 无线设备基于移动性和/或地理位置确定如果无线设备要在其中重新发送所述文件的接收部分的第一通信操作模式或第二通信操作模式中操作，其中组合 所述文件的部分被发送。 当确定无线设备要在所述第一操作模式下操作时，所述无线设备发送传送接收到的文件部分的分组，并且当确定所述无线设备确定所述无线设备时，传送文件部分的组合的分组，例如文件部分的线性组合 设备将在所述第二操作模式下操作。 可以从传送文件的不同部分的一些分组获得文件的内容，以及传达文件的不同部分的组合的其他分组。

公开(公告)号：US09037001B2

公开(公告)日：2015-05-19

申请号：US13802733

申请日：2013-03-14

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Jovicic ,  Thomas Joseph Richardson ,  Ivan Klimek

IPC: H04B10/00 ,  H04B10/116 ,  G03B7/00 ,  H04B10/114

CPC classification number: H04B10/116 ,  H04B10/1141

Abstract: Methods and apparatus related to the detection of low-rate visible light communication (VLC) signals and the recovery of information communicated by the VLC signals are described. Various methods and apparatus are well suited for embodiments in which a device, e.g., a smartphone, including a camera which uses a rolling shutter. The rolling shutter facilitates the collection of different time snapshots of a received low rate time varying VLC signal with different pixel rows in the image sensor of a frame corresponding to different time snapshots. In some embodiments, demodulation is used to recover and identify a single tone being communicated in a frame from among a plurality of possible alternative tones that may be communicated, each different tone corresponding to a different set of information bits.

Abstract translation: 描述了与检测低速可见光通信（VLC）信号相关的方法和装置以及由VLC信号传送的信息的恢复。 各种方法和装置非常适合于其中诸如智能手机的装置，包括使用滚动快门的相机的实施例。 滚动快门便于在对应于不同时间快照的帧的图像传感器中收集具有不同像素行的接收的低速率时变VLC信号的不同时间快照。 在一些实施例中，使用解调来恢复和识别在可以被传送的多个可能的替代音调之间的帧中传送的单个音调，每个不同音调对应于不同的信息比特集合。

公开(公告)号：US20150093107A1

公开(公告)日：2015-04-02

申请号：US14044023

申请日：2013-10-02

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Jovicic ,  Mahadevi Pillai Perumal ,  Thomas Joseph Richardson ,  Junyi Li

IPC: H04L7/00 ,  H04L7/033 ,  H04B10/079 ,  H04B10/116 ,  H04L7/027

CPC classification number: H04B10/0795 ,  H04B10/116 ,  H04L7/041

Abstract: Methods, systems, apparatuses, and devices are described for transmitting and receiving data using rateless visible light communication (VLC). A codeword having a plurality of symbols is identified. The codeword is repetitively transmitted in a VLC signal while, from one transmission of the codeword to a next transmission of the codeword, imparting changes in timings of the symbols of the codeword relative to a timing reference of an image capture frame of an image sensor configured to receive the codeword. A VLC signal including repetitions of a codeword is received. The codeword has a plurality of symbols. A determination is made regarding whether at least one symbol of the codeword is undetected in a repetition of the codeword. Upon determining that the at least one symbol is undetected in the repetition of the codeword, at least one other repetition of the codeword is searched to detect the at least one symbol.

Abstract translation: 描述了使用无可见可见光通信（VLC）发送和接收数据的方法，系统，装置和设备。 识别具有多个符号的码字。 在VLC信号中重复发送码字，而从代码字的一次传输到码字的下一个传输，相对于配置的图像传感器的图像捕获帧的定时参考赋予码字符号的定时改变 以接收码字。 接收包括码字重复的VLC信号。 码字具有多个符号。 确定码字的重复中是否未检测到码字的至少一个符号。 在确定码字的重复中未检测到至少一个符号时，搜索码字的至少一个其它重复以检测至少一个符号。

公开(公告)号：US20140301326A1

公开(公告)日：2014-10-09

申请号：US14311627

申请日：2014-06-23

Applicant: QUALCOMM Incorporated

Inventor： Shailesh Patil ,  Hua Wang ,  Xinzhou Wu ,  Junyi Li ,  Thomas Joseph Richardson

IPC: H04W28/04 ,  H04W4/00

CPC classification number: H04W28/046 ,  H04W4/70 ,  H04W74/085 ,  H04W74/0858 ,  H04W76/11 ,  H04W76/14

Abstract: Various methods and apparatus are directed to collision detection and/or avoidance regarding peer to peer connection identifiers. A wireless communications device broadcasts a signal indicating its acquired connection identifier in one of two alternative blocks. A base station monitors peer to peer signaling in its coverage area and tracks the usage of peer to peer connection identifiers by pairs of devices. The base station detects when multiple pairs of devices are using the same peer to peer connection identifier. The base station provides assistance to the peer to peer network to avoid a collision or facilitate rapid collision detection by the peer to peer devices. In one approach the base station sends an instruction for a connection to switch its connection identifier. In another approach the base station sends a connection a message to bias its selection as to which of the two alternative blocks to use for transmission.

Abstract translation: 各种方法和装置针对关于对等连接标识符的冲突检测和/或回避。 无线通信设备在两个替代块之一中广播指示其获取的连接标识符的信号。 基站监视其覆盖区域中的对等信令，并通过成对的设备跟踪对等连接标识符的使用。 基站检测多对设备何时使用相同的对等连接标识符。 基站向对等网络提供协助以避免冲突或促进对等设备的快速冲突检测。 在一种方法中，基站发送用于连接的指令来切换其连接标识符。 在另一种方法中，基站向连接发送消息以偏移其对于要用于传输的两个替代块中的哪一个的选择。

公开(公告)号：US20140270796A1

公开(公告)日：2014-09-18

申请号：US13802733

申请日：2013-03-14

Applicant: QUALCOMM INCORPORATED

Inventor： Aleksandar Jovicic ,  Thomas Joseph Richardson ,  Ivan Klimek

IPC: H04B10/116 ,  G03B7/00

CPC classification number: H04B10/116 ,  H04B10/1141

Abstract: Methods and apparatus related to the detection of low-rate visible light communication (VLC) signals and the recovery of information communicated by the VLC signals are described. Various methods and apparatus are well suited for embodiments in which a device, e.g., a smartphone, including a camera which uses a rolling shutter. The rolling shutter facilitates the collection of different time snapshots of a received low rate time varying VLC signal with different pixel rows in the image sensor of a frame corresponding to different time snapshots. In some embodiments, demodulation is used to recover and identify a single tone being communicated in a frame from among a plurality of possible alternative tones that may be communicated, each different tone corresponding to a different set of information bits.

Abstract translation: 描述了与检测低速可见光通信（VLC）信号相关的方法和装置以及由VLC信号传送的信息的恢复。 各种方法和装置非常适合于其中诸如智能手机的装置，包括使用滚动快门的相机的实施例。 滚动快门便于在对应于不同时间快照的帧的图像传感器中收集具有不同像素行的接收的低速率时变VLC信号的不同时间快照。 在一些实施例中，使用解调来恢复和识别在可以被传送的多个可能的替代音调之间的帧中传送的单个音调，每个不同音调对应于不同的信息比特集合。

公开(公告)号：US20140255036A1

公开(公告)日：2014-09-11

申请号：US13787676

申请日：2013-03-06

Applicant: QUALCOMM INCORPORATED

Inventor： Aleksandar Jovicic ,  Ivan Klimek ,  Thomas Joseph Richardson ,  Junyi Li

IPC: H04B10/116

CPC classification number: H04B10/116 ,  G07C9/00309 ,  G07C9/00571 ,  G07C2009/00785 ,  H04K1/00

Abstract: Methods and apparatus for controlling access to secure areas are described. Time varying values are generated from access device identifiers, e.g., door identifiers. The time varying value, e.g., a hashed door identifier value, is transmitted as a VLC signal by a luminaire near the door to which the hashed identifier corresponds. A mobile detects the transmitted hashed door identifier value and sends an access request via a wireless signal, e.g., a radio signal. The access request includes a value generated from the received hashed door identifier and a mobile device identifier. A control device determines, from information in the access request and stored information indicating which mobile devices have authority to access which doors, if access should be granted to the door corresponding to the hashed access device identifier from which the received information was generated. The received information may be hash of the mobile identifier and hashed door identifier.

Abstract translation: 描述了用于控制对安全区域的访问的方法和装置。 从接入设备标识符（例如门标识符）产生时变值。 时间变化值（例如，散列的门标识符值）作为VLC信号由散列标识符对应的门附近的灯具发送。 移动台通过无线信号（例如无线电信号）检测所发送的散列门标识符值并发送接入请求。 访问请求包括从接收到的散列门标识符和移动设备标识符生成的值。 控制装置根据访问请求中的信息和存储的信息，确定哪些移动装置具有访问哪些门的权限，如果应该向门发出访问，对应于生成接收到的信息的散列访问设备标识符。 所接收的信息可以是移动标识符的哈希和散列的门标识符。