公开(公告)号：US20150103809A1

公开(公告)日：2015-04-16

申请号：US14052152

申请日：2013-10-11

Applicant: Qualcomm Incorporated

Inventor： Joubin Karimi ,  Brian James Langlais ,  Hassan Kaywan Afkhami ,  John Fraser Chappel ,  Keith Bryan Riley ,  Ehab Tahir

IPC: H04W52/24 ,  H04L7/00 ,  H04W56/00 ,  H04L25/03

CPC classification number: H04W52/246 ,  H04B3/542 ,  H04B2203/5425 ,  H04L5/0046 ,  H04L7/007 ,  H04L25/03834 ,  H04L27/2646 ,  H04W28/18 ,  H04W52/223 ,  H04W52/346 ,  H04W56/001 ,  H04W72/12

Abstract: This disclosure provides several mechanisms for adapting transmit power spectral density (PSD). A communications device may adapt the power spectrum utilized at the transmitter based, at least in part, on the channel conditions or PSD constraints associated with the communications medium between the transmitter and a receiver device. Additionally, the transmit PSD may be adapted based, at least in part, on a total power capability associated with a transmitter. Power is allocated to improve throughput and utilization of the communications channel. A transmission profile may be selected based, at least in part, on the notch depth. The transmission profile may be associated with symbol timing parameters. The communications device may maintain a plurality of selectable pulse shapes that are optimized for different notch depths.

公开(公告)号：US09800520B2

公开(公告)日：2017-10-24

申请号：US14860004

申请日：2015-09-21

Applicant: QUALCOMM Incorporated

Inventor： Rouhana Rouhana ,  Hassan Kaywan Afkhami ,  Srinivas Katar

IPC: H04L12/911 ,  H04L12/801 ,  H04L5/00 ,  H04L27/34

CPC classification number: H04L47/828 ,  H04L5/001 ,  H04L5/0041 ,  H04L5/006 ,  H04L5/0071 ,  H04L27/34 ,  H04L47/15

Abstract: A master network device determines to transmit data from the master network device to a plurality of client network devices of a network. In one example, the master network device can generate a data frame including a payload with a plurality of symbols. The payload may include at least one symbol allocated for each of the client network devices. The plurality of symbols may be arranged in a predefined pattern in the payload. In another example, the master network device may generate a data frame including a payload with one or more symbols. Each symbol may include a plurality of frequency carriers, and may include at least one frequency carrier allocated for each of the client network devices. The plurality of frequency carriers can be allotted to the client network devices according to a partitioning pattern. The master network device then transmits the data frame to the client network devices.

公开(公告)号：US20170093745A1

公开(公告)日：2017-03-30

申请号：US14864306

申请日：2015-09-24

Applicant: QUALCOMM Incorporated

Inventor： Lawrence Winston Yonge, III ,  Hassan Kaywan Afkhami ,  Purva Rameshchandra Rajkotia

IPC: H04L12/911 ,  H04L12/927

CPC classification number: H04L47/726 ,  H04L47/808 ,  H04L47/821 ,  H04W72/1215 ,  H04W88/10

Abstract: A network device may be configured for communication over multiple communication networks. In one example, a method for scheduling a network device for communication in communication networks is disclosed. The method includes determining, based at least in part on a first schedule, a first collision interval indicating when the network device is available for communication over the communication networks that include a first communication network and a second communication network. The method includes determining communication behavior of the network device for communicating over the first communication network and the second communication network during the first collision interval.

公开(公告)号：US20170019226A1

公开(公告)日：2017-01-19

申请号：US14798681

申请日：2015-07-14

Applicant: QUALCOMM Incorporated

Inventor： Lawrence Winston Yonge, III ,  Hassan Kaywan Afkhami ,  Purva Rameshchandra Rajkotia

IPC: H04L5/00

CPC classification number: H04L5/0044 ,  H04L1/04 ,  H04L5/006 ,  H04L5/0062 ,  H04L27/2656

Abstract: Described herein are apparatuses for receiving preamble information via a channel between a first device and a second device. An apparatus is configured to scan a band of multiple carriers associated with the channel, determine a first carrier associated with the channel from the band of multiple carriers, wherein a first channel quality metric associated with the first carrier is greater than a threshold channel quality metric, receive, on the first carrier, the preamble information from the first device, determine a second carrier associated with the channel from the band of multiple carriers, wherein a second channel quality metric associated with the second carrier is greater than the threshold channel quality metric, receive, on the second carrier, the preamble information from the first device, and determine, based on receipt of the preamble information from the first device, a start of a data packet transmission from the first device.

Abstract translation: 这里描述的是用于经由第一设备和第二设备之间的信道接收前导信息的设备。 一种装置被配置为扫描与该信道相关联的多个载波的频带，从多个载波的频带确定与该信道相关联的第一载波，其中与第一载波相关联的第一信道质量度量大于阈值信道质量度量 在所述第一载波上从所述第一设备接收所述前导信息，从所述多个载波的频带确定与所述信道相关联的第二载波，其中与所述第二载波相关联的第二信道质量度量大于所述阈值信道质量度量 在所述第二载波上从所述第一设备接收所述前导码信息，并且基于从所述第一设备接收到所述前导码信息，确定从所述第一设备开始的数据分组传输。

公开(公告)号：US09461705B2

公开(公告)日：2016-10-04

申请号：US14553728

申请日：2014-11-25

Applicant: QUALCOMM Incorporated

Inventor： Hassan Kaywan Afkhami ,  Purva Rameshchandra Rajkotia

IPC: H04B3/00 ,  H04B3/54 ,  H04L12/26 ,  H04L12/24

CPC classification number: H04B3/54 ,  H04L41/0823 ,  H04L43/065 ,  H04L43/0876

Abstract: Powerline communication (PLC) networks allow devices within a home, automobile, or other systems to communicate over existing wired powerline infrastructure. Active PLC networks can affect devices sharing the powerline infrastructure as well as wireless devices through radiated noise emissions. Provided in the present disclosure are exemplary techniques for reducing noise emissions and promoting coexistence of multiple PLC systems and/or non-PLC (e.g., wireless) systems.

Abstract translation: 电力线通信（PLC）网络允许家庭，汽车或其他系统中的设备通过现有的有线电力线路基础设施进行通信。 有源PLC网络可以影响通过辐射噪声发射共享电力线基础设施以及无线设备的设备。 在本公开中提供的是用于减少噪声排放并促进多个PLC系统和/或非PLC（例如，无线）系统的共存的示例性技术。

公开(公告)号：US20150111583A1

公开(公告)日：2015-04-23

申请号：US14058368

申请日：2013-10-21

Applicant: QUALCOMM Incorporated

Inventor： Purva Rameshchandra Rajkotia ,  Hassan Kaywan Afkhami ,  Deniz Rende

IPC: H04W16/10 ,  H04B3/54 ,  H04W52/24

CPC classification number: H04W16/10 ,  H04B3/54 ,  H04B17/345 ,  H04W52/243

Abstract: A radio detector may detect the presence of safeguarded radio frequency signals and one or more devices associated with a first network regarding the presence of the safeguarded radio frequency signals. The radio detector may be implemented as part of a device coupled to the first network, an accessory, a stand-alone detector, or as part of an infrastructure component. The radio detector may transmit a message regarding the detection of safeguarded radio frequency signals using any variety of messages, including a tone map, amplitude map, beacon message, host communication, tone mask, or the like.

Abstract translation: 无线电检测器可以检测有关保护的射频信号的存在以及与第一网络相关联的一个或多个与保护的射频信号的存在有关的一个或多个设备。 无线电检测器可以被实现为耦合到第一网络，附件，独立检测器或作为基础设施部件的一部分的设备的一部分。 无线电检测器可以使用包括音调图，振幅图，信标消息，主机通信，音调掩模等的各种消息来发送关于检测被保护的射频信号的消​​息。

公开(公告)号：US20140355621A1

公开(公告)日：2014-12-04

申请号：US13906274

申请日：2013-05-30

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Katar ,  Hassan Kaywan Afkhami ,  Hao Zhu ,  Lawrence Winston Yonge, III

IPC: H04J3/16

CPC classification number: H04L5/006 ,  H04B3/544 ,  H04B2203/5425 ,  H04B2203/5445 ,  H04B2203/5495 ,  H04L5/0085

Abstract: A first powerline communication device, associated with a first powerline communication network, determines a plurality of time intervals in a beacon period of the first powerline communication network based, at least in part, on variations in levels of interference from a second powerline communication network which shares a powerline communication medium with the first powerline communication network. The first powerline communication device determines at least one channel adaptation parameter for each of the plurality of time intervals in the beacon period to compensate for effects of the variations in the levels of interference from the second powerline communication network. The first powerline communication device applies the at least one channel adaptation parameter corresponding to one or more of the plurality of time intervals in the beacon period when transmitting data via the powerline communication medium.

Abstract translation: 与第一电力线通信网络相关联的第一电力线通信设备至少部分地基于来自第二电力线通信网络的干扰电平的变化来确定第一电力线通信网络的信标周期中的多个时间间隔， 与第一个电力线通信网络共享电力线通信介质。 第一电力线通信设备为信标周期中的多个时间间隔中的每一个确定至少一个信道自适应参数，以补偿来自第二电力线通信网络的干扰电平的变化的影响。 当通过电力线通信介质发送数据时，第一电力线通信装置应用与信标周期中的多个时间间隔中的一个或多个对应的至少一个信道自适应参数。

公开(公告)号：US20170093626A1

公开(公告)日：2017-03-30

申请号：US14864375

申请日：2015-09-24

Applicant: QUALCOMM Incorporated

Inventor： Hassan Kaywan Afkhami ,  Purva Rameshchandra Rajkotia ,  Lawrence Winston Yonge, III ,  Deniz Rende

IPC: H04L12/24 ,  H04B3/54

CPC classification number: H04L41/0816 ,  H04B1/0067 ,  H04B3/542 ,  H04L69/18 ,  H04W48/18 ,  H04W52/0216 ,  H04W52/0225 ,  H04W72/1215 ,  H04W74/04 ,  H04W80/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162 ,  Y02D70/40

Abstract: A network device may be configured for communication over multiple communication networks. In one example, a method for using a network device to communicate over multiple networks is disclosed. The method includes receiving a packet from a combined communication interface and determining that the packet is formatted according to a first communication protocol. In response to determining that the packet is formatted according to the first communication protocol, the method includes enabling a first component in a first digital signal processor (DSP) block of the network device to process the packet according to the first communication protocol, and disabling a second component of the first DSP block, wherein the second component is configured to process the packet according to a second communication protocol.

公开(公告)号：US20170033846A1

公开(公告)日：2017-02-02

申请号：US14810194

申请日：2015-07-27

Applicant: QUALCOMM Incorporated

Inventor： Deniz Rende ,  Lawrence Winston Yonge, III ,  Arun Avudainayagam ,  Hassan Kaywan Afkhami

IPC: H04B7/04 ,  H04B7/06 ,  H04B7/08 ,  H04L5/00

CPC classification number: H04B7/0413 ,  H04B3/542 ,  H04B7/043 ,  H04B7/0617 ,  H04B7/0697 ,  H04B7/08 ,  H04B2203/5425 ,  H04L5/0048 ,  H04L5/006

Abstract: A method for determining transmission properties of a multiple-input multiple-output (MIMO) channel. In one embodiment, a MIMO receiver receives a non-beamformed, spatial-multiplexed (SM) sounding signal over multiple signal paths of the MIMO channel. The receiver determines beamforming information including beamforming coefficients and beamforming Eigenvalues for the MIMO channel based, at least in part, on frequency responses of the signal paths. The receiver determines a first signal-to-noise ratio (SNR) estimate for one or more SM data streams of the SM sounding signal based, at least in part, on the determined beamforming information.

Abstract translation: 一种用于确定多输入多输出（MIMO）信道的传输特性的方法。 在一个实施例中，MIMO接收机在MIMO信道的多个信号路径上接收非波束形成的空间复用（SM）探测信号。 至少部分地基于信号路径的频率响应，接收机确定包括用于MIMO信道的波束成形系数和波束成形特征值的波束形成信息。 所述接收机至少部分地基于所确定的波束形成信息来确定所述SM探测信号的一个或多个SM数据流的第一信噪比（SNR）估计。

公开(公告)号：US09537641B2

公开(公告)日：2017-01-03

申请号：US13906274

申请日：2013-05-30

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Katar ,  Hassan Kaywan Afkhami ,  Hao Zhu ,  Lawrence Winston Yonge, III

IPC: H04B7/212 ,  H04L5/00 ,  H04B3/54

CPC classification number: H04L5/006 ,  H04B3/544 ,  H04B2203/5425 ,  H04B2203/5445 ,  H04B2203/5495 ,  H04L5/0085

Abstract: A first powerline communication device, associated with a first powerline communication network, determines a plurality of time intervals in a beacon period of the first powerline communication network based, at least in part, on variations in levels of interference from a second powerline communication network which shares a powerline communication medium with the first powerline communication network. The first powerline communication device determines at least one channel adaptation parameter for each of the plurality of time intervals in the beacon period to compensate for effects of the variations in the levels of interference from the second powerline communication network. The first powerline communication device applies the at least one channel adaptation parameter corresponding to one or more of the plurality of time intervals in the beacon period when transmitting data via the powerline communication medium.

Abstract translation: 与第一电力线通信网络相关联的第一电力线通信设备至少部分地基于来自第二电力线通信网络的干扰电平的变化来确定第一电力线通信网络的信标周期中的多个时间间隔， 与第一个电力线通信网络共享电力线通信介质。 第一电力线通信设备为信标周期中的多个时间间隔中的每一个确定至少一个信道自适应参数，以补偿来自第二电力线通信网络的干扰电平的变化的影响。 当通过电力线通信介质发送数据时，第一电力线通信装置应用与信标周期中的多个时间间隔中的一个或多个对应的至少一个信道自适应参数。