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。