公开(公告)号：US09231686B2

公开(公告)日：2016-01-05

申请号：US14291769

申请日：2014-05-30

Applicant: Apple Inc.

Inventor： Xiaojun Chen ,  Peter M Agboh ,  Indranil S Sen ,  Hsin-Yuo Liu ,  Vusthia Sunil Reddy ,  Diego C Hernandez ,  Digvijay A Jadhav ,  Mohit Narang ,  Ruben Caballero

IPC: H04B7/08

CPC classification number: H04B7/0817 ,  H04B7/0822

Abstract: Dynamic antenna switching based on weighted signal to noise ratio (SNR). A wireless device may include multiple antennas. SNR at each active antenna may be calculated. An antenna-specific weight may be applied to each antenna's SNR. The antenna-specific weights may further be radio specific and/or transmit or receive specific in some cases. Antenna selection (possibly just for a specific radio and/or for transmit or receive operations, depending on the specificity of the antenna weights), including potentially switching which antenna is used, may be based on the resulting weighted SNR values for each antenna. If the antenna-specific weights are radio specific and/or transmit or receive operation specific, the method may be performed multiple times with different antenna-specific weights to select antenna(s) for different radios and/or for other operations.

Abstract translation: 基于加权信噪比（SNR）的动态天线切换。 无线设备可以包括多个天线。 可以计算每个有源天线的SNR。 天线特定权重可以应用于每个天线的SNR。 在某些情况下，天线特定权重可以进一步是无线电特定的和/或发送或接收特定的。 天线选择（可能仅适用于特定无线电和/或用于发射或接收操作，取决于天线权重的特异性），包括潜在地切换使用哪个天线，可以基于所得到的每个天线的加权SNR值。 如果天线特定权重是无线电特定的和/或发送或接收操作特定的，则可以使用不同的天线特定权重多次执行该方法，以选择用于不同无线电和/或其他操作的天线。