公开(公告)号：US09413688B2

公开(公告)日：2016-08-09

申请号：US13924301

申请日：2013-06-21

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Katar ,  Lawrence Winston Yonge, III ,  Manjunath Anandarama Krishnam ,  Bradley Robert Lynch ,  Ehab Tahir

IPC: H04L12/911 ,  H04L12/413 ,  H04L1/00 ,  H04L1/16 ,  H04L1/18

CPC classification number: H04L47/826 ,  H04L1/0009 ,  H04L1/1671 ,  H04L1/1887 ,  H04L12/413 ,  H04L2001/0094

Abstract: A method includes determining that a first station has been allocated a first time period to transmit over a shared medium in a network. The method includes transmitting, from the first station to a second station over the shared medium during the first time period, wherein stations other than the first station and the second station refrain from transmitting over the shared medium during the first time period. The method includes receiving, from the second station, a request message to allow the second station to transmit during the first time period and a requested amount of time to transmit. The method includes, in response to allowing the second station to transmit during the first time period, determining an authorized amount of time for the second station to transmit during the first time period, and transmitting an authorization message for the second station to transmit and the authorized amount of time.

Abstract translation: 一种方法包括确定第一站已被分配了第一时间段以通过网络中的共享介质进行传输。 该方法包括在第一时间段期间通过共享介质从第一站传送到第二站，其中除了第一站和第二站之外的站不在第一时间段内通过共享介质进行传输。 所述方法包括从所述第二站接收请求消息以允许所述第二站在所述第一时间周期期间进行发送以及所请求的发送时间量。 所述方法包括响应于允许所述第二站在所述第一时间周期期间进行传输，确定所述第二站在所述第一时间段期间发送的授权的时间量，以及发送用于所述第二站发送的授权消息，并且 授权时间。

公开(公告)号：US09059877B2

公开(公告)日：2015-06-16

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: H04B7/00 ,  H04L25/02 ,  H03G3/30

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：US09019857B2

公开(公告)日：2015-04-28

申请号：US13752223

申请日：2013-01-28

Applicant: QUALCOMM Incorporated

Inventor： Ehab Tahir ,  Anthony Cowan ,  John Fraser Chappel

IPC: H04L12/413 ,  H04W24/10 ,  H04W74/08

CPC classification number: H04L12/413 ,  H04W24/10 ,  H04W74/0841

Abstract: A transmission frame is communicated to cause a media idle measurement period on a contention based communication media. The media idle measurement period (i.e., “quiet period”) provides a period of inactivity on the communications medium that may be used to detect for the presence of foreign signals such as radio broadcast interference, noise, or other signals, or may be used for calibration of circuitry coupled to the communications medium. Idle measurement periods may be caused regularly (e.g., periodically). The transmission frame may include an explicit instruction for the media idle measurement period or may cause the media idle measurement period by simulating a collision on the communications media.

Abstract translation: 通信传送帧以在基于竞争的通信媒体上引起媒体空闲测量周期。 媒体空闲测量周期（即，“静默时段”）在通信介质上提供了可用于检测诸如无线电广播干扰，噪声或其它信号之类的外来信号的存在的不活动时段，或者可以使用 用于校准耦合到通信介质的电路。 可能会定期（例如周期性地）引起空闲测量周期。 传输帧可以包括用于媒体空闲测量周期的显式指令，或者可以通过模拟通信介质上的冲突来引起媒体空闲测量周期。

公开(公告)号：US20140266641A1

公开(公告)日：2014-09-18

申请号：US13799974

申请日：2013-03-13

Applicant: QUALCOMM INCORPORATED

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

IPC: G08C19/12

CPC classification number: H04W52/288 ,  G08C2201/30 ,  H04B3/54 ,  H04B2001/1063 ,  H04B2203/5425 ,  H04L5/0046 ,  H04L25/03834

Abstract: A power spectral density (PSD) shape may be modified based upon the transmitter power setting of a transmitter. The power associated with notched frequencies and adjacent frequencies may be adjusted responsive to a change in transmitter power setting. As a result of adjusting the power for the notched frequencies and adjacent frequencies when operating at the different transmitter power setting, the performance of the transmission system is improved. The PSD shape may be considered dynamic, being modified responsive to a change in transmitter power setting by adjusting power associated with notches in the PSD shape based on the transmitter power setting and PSD constraint.

Abstract translation: 可以基于发射机的发射机功率设置来修改功率谱密度（PSD）形状。 可以根据发射机功率设置的变化来调整与缺口频率和相邻频率相关联的功率。 作为在不同的发射机功率设置下工作时调整切口频率和相邻频率的功率的结果，提高了传输系统的性能。 PSD形状可以被认为是动态的，通过基于发射机功率设置和PSD约束调整与PSD形状中的凹口相关联的功率，响应于发射机功率设置的改变而被修改。

公开(公告)号：US20140254639A1

公开(公告)日：2014-09-11

申请号：US13789380

申请日：2013-03-07

Applicant: QUALCOMM INCORPORATED

Inventor： Ehab Tahir ,  John Chappel

IPC: H04B7/04

CPC classification number: H04B7/0426 ,  H04W52/42

Abstract: Systems and methods are disclosed for receivers of transmit chains of a MIMO system to receive transmit power information and to compute channel characteristics of the transmit chains to enable dynamic adjustment of the transmit power on the transmit chain to optimize an overall data throughput while meeting a maximum emission limit, such as a regulatory limit on emitted power. The transmit power and the data rate on the transmit chains may be independently controlled. The receiver of the MIMO system may determine the new transmit power for the transmit chains from the computed channel characteristics and the current transmit power of the transmit chains. Alternatively, the receiver may transmit the computed channel characteristics of the transmit chains to the transmitter for the transmitter to determine the new transmit power for the transmit chains. The transmitter may use the new transmit power to transmit new data on the transmit chains.

Abstract translation: 公开了用于MIMO系统的发射链的接收机的系统和方法，用于接收发射功率信息并计算发射链的信道特性，以实现发射链上的发射功率的动态调整，以优化总体数据吞吐量同时满足最大值 排放限制，例如发射功率的限制。 可以独立地控制发射链上的发射功率和数据速率。 MIMO系统的接收机可以根据计算的信道特性和发射链的当前发射功率确定发射链的新发射功率。 或者，接收机可以将发射链的计算的信道特性发射到发射机，以便发射机确定发射链的新发射功率。 发射机可以使用新的发射功率在发射链上传输新的数据。

公开(公告)号：US20130287040A1

公开(公告)日：2013-10-31

申请号：US13924301

申请日：2013-06-21

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Katar ,  Lawrence Winston Yonge, III ,  Manjunath Anandarama Krishnam ,  Bradley Robert Lynch ,  Ehab Tahir

IPC: H04L12/70

CPC classification number: H04L47/826 ,  H04L1/0009 ,  H04L1/1671 ,  H04L1/1887 ,  H04L12/413 ,  H04L2001/0094

Abstract: A method includes determining that a first station has been allocated a first time period to transmit over a shared medium in a network. The method includes transmitting, from the first station to a second station over the shared medium during the first time period, wherein stations other than the first station and the second station refrain from transmitting over the shared medium during the first time period. The method includes receiving, from the second station, a request message to allow the second station to transmit during the first time period and a requested amount of time to transmit. The method includes, in response to allowing the second station to transmit during the first time period, determining an authorized amount of time for the second station to transmit during the first time period, and transmitting an authorization message for the second station to transmit and the authorized amount of time.

Abstract translation: 一种方法包括确定第一站已被分配了第一时间段以通过网络中的共享介质进行传输。 该方法包括在第一时间段期间通过共享介质从第一站传送到第二站，其中除了第一站和第二站之外的站不在第一时间段内通过共享介质进行传输。 所述方法包括从所述第二站接收请求消息以允许所述第二站在所述第一时间周期期间进行发送以及所请求的发送时间量。 所述方法包括响应于允许所述第二站在所述第一时间周期期间进行传输，确定所述第二站在所述第一时间段期间发送的授权的时间量，以及发送用于所述第二站发送的授权消息， 授权时间。

公开(公告)号：US09295010B2

公开(公告)日：2016-03-22

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: H04W28/18 ,  H04W72/12 ,  H04L25/03 ,  H04L7/00 ,  H04W56/00 ,  H04B3/54 ,  H04L5/00 ,  H04L27/26 ,  H04W52/22 ,  H04W52/34 ,  H04W52/24

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.

Abstract translation: 本公开提供了用于调整发射功率谱密度（PSD）的几种机制。 至少部分地，通信设备可以使用在发射机处使用的功率谱适应与发射机和接收机设备之间的通信介质相关联的信道条件或PSD约束。 另外，传输PSD可以至少部分地基于与发射机相关联的总功率能力来适配。 分配功率以提高通信信道的吞吐量和利用率。 可以至少部分地基于凹口深度来选择透射轮廓。 传输简档可以与符号定时参数相关联。 通信设备可以保持针对不同陷波深度而优化的多个可选脉冲形状。

公开(公告)号：US09258093B2

公开(公告)日：2016-02-09

申请号：US14063931

申请日：2013-10-25

Applicant: QUALCOMM Incorporated

Inventor： Arun Avudainayagam ,  Treina Cresse ,  Manjunath Anandarama Krishnam ,  Ehab Tahir

IPC: H04W4/00 ,  H04L5/00 ,  H04B3/46 ,  H04B3/54 ,  H04L12/26 ,  H04L1/00 ,  H04L25/02

CPC classification number: H04L5/0048 ,  H04B3/46 ,  H04B3/542 ,  H04B3/544 ,  H04B2203/5408 ,  H04B2203/5445 ,  H04B2203/5466 ,  H04L1/0026 ,  H04L1/0029 ,  H04L1/004 ,  H04L5/0046 ,  H04L5/0094 ,  H04L25/0204 ,  H04L25/022 ,  H04L25/0228 ,  H04L43/16

Abstract: A network device may be configured to iteratively modify an initial tone map for each communication region of a powerline cycle to minimize the time before application data can be transmitted. A first network device estimates an initial tone map for each communication region based, at least in part, on sounding messages received from a second network device. The first network device determines whether to estimate a modified tone map for the first communication region based on at least one performance measurement associated with a data packet generated using the initial tone map for the first communication region. If so, the second network device retransmits the sounding messages in the first communication region that will be used to modify the initial tone map for the first communication region, and the second network device continues to transmit the data packets using the initial tone maps in the remaining communication regions.

Abstract translation: 网络设备可以被配置为迭代地修改电力线周期的每个通信区域的初始色调图，以最小化应用数据可以被发送之前的时间。 至少部分地，基于从第二网络设备接收的探测消息，第一网络设备估计每个通信区域的初始色调映射。 第一网络设备基于与使用第一通信区域的初始色调映射生成的数据分组相关联的至少一个性能测量来确定是否估计用于第一通信区域的修改的色调映射。 如果是，则第二网络设备重发第一通信区域中将用于修改第一通信区域的初始色调映射的探测消息，并且第二网络设备继续使用第一通信区域中的初始色调映射来发送数据包 剩余通信地区。

公开(公告)号：US09131454B2

公开(公告)日：2015-09-08

申请号：US13799974

申请日：2013-03-13

Applicant: QUALCOMM Incorporated

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

IPC: H04K1/02 ,  H04L25/03 ,  H04L25/49 ,  H04W52/28 ,  H04B3/54 ,  H04L5/00 ,  H04B1/10

CPC classification number: H04W52/288 ,  G08C2201/30 ,  H04B3/54 ,  H04B2001/1063 ,  H04B2203/5425 ,  H04L5/0046 ,  H04L25/03834

Abstract: A power spectral density (PSD) shape may be modified based upon the transmitter power setting of a transmitter. The power associated with notched frequencies and adjacent frequencies may be adjusted responsive to a change in transmitter power setting. As a result of adjusting the power for the notched frequencies and adjacent frequencies when operating at the different transmitter power setting, the performance of the transmission system is improved. The PSD shape may be considered dynamic, being modified responsive to a change in transmitter power setting by adjusting power associated with notches in the PSD shape based on the transmitter power setting and PSD constraint.

Abstract translation: 可以基于发射机的发射机功率设置来修改功率谱密度（PSD）形状。 可以根据发射机功率设置的变化来调整与缺口频率和相邻频率相关联的功率。 作为在不同的发射机功率设置下工作时调整切口频率和相邻频率的功率的结果，提高了传输系统的性能。 PSD形状可以被认为是动态的，通过基于发射机功率设置和PSD约束调整与PSD形状中的凹口相关联的功率，响应于发射机功率设置的改变而被修改。

公开(公告)号：US09071390B2

公开(公告)日：2015-06-30

申请号：US13738594

申请日：2013-01-10

Applicant: QUALCOMM Incorporated

Inventor： Ehab Tahir ,  Nikolai Kroupetski ,  John Fraser Chappel ,  Brian James Langlais ,  Joubin Karimi ,  Richard D. Roze ,  Son Binh Cam

IPC: H04L27/34 ,  H04L1/00 ,  H04L25/02

CPC classification number: H04L1/0001 ,  H04L25/02

Abstract: A transmitting device may determine a physical layer transmission properties based upon an amount of data to transmit via a communications channel. The physical layer transmission properties may comprise a derated tone map that has a lower physical layer transmission throughput capability than an original tone map. An indication regarding the derated tone map may be included in a first message, a portion of a physical layer framing protocol, a physical layer control transmission (such as a frame control symbol), or other transmissions such that the receiving device can derive the derated tone map without significant added overhead.

Abstract translation: 发送设备可以基于经由通信信道发送的数据量来确定物理层传输属性。 物理层传输属性可以包括具有比原始色调图更低的物理层传输吞吐能力的降额色调映射。 关于降额音调映射的指示可以包括在第一消息，物理层成帧协议的一部分，物理层控制传输（诸如帧控制符号）或其他传输中，使得接收设备可以导出降额 色调图没有显着增加的开销。