公开(公告)号：US20170019220A1

公开(公告)日：2017-01-19

申请号：US14801636

申请日：2015-07-16

Applicant: QUALCOMM Incorporated

Inventor： Lawrence Winston Yonge, III ,  Gregory Allen Magin ,  Brian James Langlais

IPC: H04L5/00

CPC classification number: H04L5/003 ,  H04B3/542 ,  H04B2203/5408

Abstract: Described herein are apparatuses and methods for providing communication in multiple frequencies in a multiband Ethernet over Coax (EoC) system. An exemplary apparatus comprises a transceiver for transmitting or receiving a first data packet on a first channel associated with a first frequency, and a transmitter for transmitting a second data packet on at least one second channel associated with at least one second frequency.

Abstract translation: 这里描述了用于在同轴（EoC）系统中的多频带以太网中提供多个频率的通信的装置和方法。 示例性装置包括用于在与第一频率相关联的第一信道上发送或接收第一数据分组的收发机，以及用于在与至少一个第二频率相关联的至少一个第二信道上发送第二数据分组的发射机。

公开(公告)号：US20150318893A1

公开(公告)日：2015-11-05

申请号：US14494268

申请日：2014-09-23

Applicant: QUALCOMM Incorporated

Inventor： Ehab Tahir ,  Brian James Langlais ,  Joubin Karimi

IPC: H04B3/54 ,  H04W24/10 ,  H04L12/18

CPC classification number: H04B3/54 ,  H04B2203/5425 ,  H04H20/84 ,  H04L5/0007 ,  H04L5/0062 ,  H04L12/189 ,  H04L27/2626 ,  H04L27/3411 ,  H04W24/10 ,  H04W52/24 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162

Abstract: Transmission power of a signal may be lowered in response to detecting a broadcast radio transmission. A communication device may communicate via a powerline communication (PLC) medium by transmitting, via the PLC medium, a signal having at least a first carrier frequency. The communication device may detect a broadcast radio transmission. The communication device may lower a transmission power setting associated with the first carrier frequency from a first power level to a second power level that is lower than the first power level in response to detecting the broadcast radio transmission. The communication device may transmit, via the PLC medium, the signal having at least the first carrier frequency at the second power level during a time period associated with the broadcast radio transmission.

Abstract translation: 响应于检测到广播无线电传输，信号的传输功率可能降低。 通信设备可以经由电力线通信（PLC）介质通过经由PLC介质发送具有至少第一载波频率的信号来进行通信。 通信设备可以检测广播无线电传输。 响应于检测到广播无线电传输，通信设备可以将与第一载波频率相关联的发射功率设置从第一功率电平降低到低于第一功率电平的第二功率电平。 通信设备可以在与广播无线电传输相关联的时间周期期间经由PLC介质发送具有第二功率电平的至少第一载波频率的信号。

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：US08995247B2

公开(公告)日：2015-03-31

申请号：US13735966

申请日：2013-01-07

Applicant: QUALCOMM Incorporated

Inventor： John Fraser Chappel ,  Ehab Tahir ,  Richard David Roze ,  Brian James Langlais ,  Joubin Karimi

IPC: H04B1/00 ,  H04L27/22 ,  G06F1/32 ,  H04L27/26

CPC classification number: G06F1/3206 ,  G06F1/3209 ,  H04L27/2605 ,  H04L27/2655

Abstract: A first network device detects at least a first orthogonal code included in a preamble of a network packet received at the first network device from a second network device in an orthogonal frequency division multiplexing (OFDM) communication network. The first network device determines whether the first orthogonal code included in the preamble is associated with an assigned orthogonal code for the first network device. The assigned orthogonal code for the first network device is orthogonal to other assigned orthogonal codes for other network devices in the OFDM communication network. An operational mode of the first network device is changed from a sleep mode to an awake mode in response to determining the first orthogonal code is associated with the assigned orthogonal code for the first network device.

Abstract translation: 第一网络设备从正交频分复用（OFDM）通信网络中的第二网络设备检测在第一网络设备处接收的网络分组的前导码中包括的至少第一正交码。 第一网络设备确定包括在前同步码中的第一正交码是否与所分配的第一网络设备的正交码相关联。 第一网络设备的分配的正交码与OFDM通信网络中的其他网络设备的其他分配的正交码正交。 响应于确定第一正交码与所分配的第一网络设备的正交码相关联，第一网络设备的操作模式从睡眠模式改变为唤醒模式。

公开(公告)号：US20140355712A1

公开(公告)日：2014-12-04

申请号：US14167969

申请日：2014-01-29

Applicant: QUALCOMM Incorporated

Inventor： Brian James Langlais ,  Joubin Karimi ,  Ehab Tahir ,  Gregory Allen Magin

IPC: H04L25/02

CPC classification number: H04L25/02 ,  H03G3/3042

Abstract: A transmitting device may control digital-to-analog converter (DAC) illumination to optimize signal to noise ratio of a transmission signal. DAC illumination may be adjusted based, at least in part, on analog gain and estimated total transmit power of a particular transmission signal. For each destination, total transmit power may be estimated based on tone map, amplitude map, back-off settings, or other characteristics. The estimated total transmit power is used to determine an appropriate analog gain. Once analog gain and total transmit power are known, fine control of SNR may be achieved by adjusting power level in the digital domain. A digital power control setting is used to scale the amplitude of the digital baseband signal prior to DAC operation. The DAC illumination of the digital baseband signal allows the DAC to operate at an optimized power level within the digital range of the DAC.

Abstract translation: 传输设备可以控制数模转换器（DAC）照明以优化传输信号的信噪比。 可以至少部分地基于特定传输信号的模拟增益和估计总发射功率来调整DAC照明。 对于每个目的地，总发射功率可以基于色调映射，幅度映射，退避设置或其他特性来估计。 估计的总发射功率用于确定适当的模拟增益。 一旦模拟增益和总发射功率已知，则可以通过调整数字域中的功率电平来实现SNR的精细控制。 数字功率控制设置用于在DAC操作之前缩放数字基带信号的幅度。 数字基带信号的DAC照明允许DAC在DAC的数字范围内以优化的功率电平工作。

公开(公告)号：US20140269873A1

公开(公告)日：2014-09-18

申请号：US13798602

申请日：2013-03-13

Applicant: QUALCOMM INCORPORATED

Inventor： Ehab Tahir ,  Son Binh Cam ,  Richard David Roze ,  Joubin Karimi ,  Brian James Langlais ,  John Fraser Chappel ,  Syed Hussain ,  Manjunath Krishnam ,  Gregory Magin

IPC: H04L1/00

CPC classification number: H04L1/0026 ,  H04B3/544 ,  H04L5/0046 ,  H04L5/0053 ,  H04L5/0094 ,  H04W52/241 ,  H04W52/262 ,  H04W52/346

Abstract: A tone map includes physical layer transmission properties for a multi-carrier communications channel. The physical layer transmission properties indicate modulation mode and transmission power to be used on one or more frequencies (i.e. “tones”). The transmission power may be reduced on a first frequency having a high signal-to-noise ratio (SNR) so that performance will improve for a second frequency having a lower SNR. Transmission power may be reduced on a first frequency having an unusably low SNR so that performance will improve on a second frequency. A tone map message is used to efficiently communicate modulation and transmission power adjustments on a per-carrier basis.

Abstract translation: 音调图包括多载波通信信道的物理层传输属性。 物理层传输属性表示要在一个或多个频率（即“音调”）上使用的调制模式和发射功率。 可以在具有高信噪比（SNR）的第一频率上减小发射功率，使得性能将改善具有较低SNR的第二频率。 可以在具有不可靠的低SNR的第一频率上降低发射功率，使得性能将在第二频率上改善。 音调映射消息用于在每个载波的基础上有效地传达调制和传输功率调整。