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：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。

公开(公告)号：US08948039B2

公开(公告)日：2015-02-03

申请号：US13710968

申请日：2012-12-11

Applicant: QUALCOMM Incorporated

Inventor： John Chappel ,  Brian J. Langlais ,  Joubin Karimi ,  Richard D. Roze ,  Son Binh Cam ,  Din Lee ,  Ehab Tahir

IPC: G06F11/00 ,  H04L1/00 ,  H04L12/26 ,  H04L1/20

CPC classification number: H04L43/00 ,  H04L1/0002 ,  H04L1/203

Abstract: A method includes determining a first Signal-to-Noise Ratio (SNR) average for a first symbol set of at least one or more first symbols in one or more packets. The method includes determining a second SNR average for a second symbol set of at least one or more second symbols in the one or more packets. The method also includes determining a first difference between the first SNR average and the second SNR average. In response to determining that the first difference exceeds an SNR threshold, the method includes determining that a first channel event has occurred in the one or more packets at least within the first symbol set and the second symbol set and in response to determining that the first channel event has occurred, determining is to remain at the first data rate or at a second data rate that is higher than the first data rate.

Abstract translation: 一种方法包括确定一个或多个分组中的至少一个或多个第一符号的第一符号集合的第一信噪比（SNR）平均值。 该方法包括确定一个或多个分组中的至少一个或多个第二符号的第二符号集合的第二SNR平均值。 该方法还包括确定第一SNR平均值与第二SNR平均值之间的第一差值。 响应于确定第一差异超过SNR阈值，该方法包括确定至少在第一符号集合和第二符号集合内的一个或多个分组中已经发生了第一信道事件，并且响应于确定第一信道事件 发生信道事件，确定保持在高于第一数据速率的第一数据速率或第二数据速率。

公开(公告)号：US20140192851A1

公开(公告)日：2014-07-10

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

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。