公开(公告)号：US09130617B2

公开(公告)日：2015-09-08

申请号：US13789380

申请日：2013-03-07

Applicant: QUALCOMM Incorporated

Inventor： Ehab Tahir ,  John Chappel

IPC: H04B1/38 ,  H04L5/16 ,  H04B7/04 ,  H04W52/42

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，以便在满足最大值时优化总体数据吞吐量 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：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：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。