公开(公告)号：US20140146921A1

公开(公告)日：2014-05-29

申请号：US13688542

申请日：2012-11-29

Applicant: DELPHI TECHNOLOGIES, INC.

Inventor： GLENN A. WALKER ,  ERIC A. DiBIASO ,  ROGER A. McDANNEL ,  MICHAEL L. HIATT

IPC: H04B7/08 ,  H04L7/00

CPC classification number: H04B7/0814 ,  H04B7/0811 ,  H04B7/10 ,  H04B7/12 ,  H04B7/18541 ,  H04B7/2041 ,  H04L7/0079

Abstract: A terrestrial receiver recovers universal services in a satellite radio transmission system including discrete signal sources producing overlapping spot beam loci within a coverage area, wherein the signals forming the beams each contain repeating time aligned universal services having a master synchronizing frame, at least one common channel, and at least one spot specific channel with differing frequency and/or polarization. The receiver switches among antenna elements. A portion of antenna elements receive a transmitted signal, including a plurality of sub-channels that are transmitted in predetermined time intervals. A switching device switches among single antenna elements to receive the transmitted signal. A controller commands the switching device to select each of the antenna elements separately in predetermined periods of time based upon the predetermined time intervals of each of the master synchronizing frames. A power level of the transmitted signal is determined during the predetermined time intervals.

Abstract translation: 地面接收机恢复卫星无线电传输系统中的通用业务，包括在覆盖区域内产生重叠点波束位置的离散信号源，其中形成波束的信号各自包含具有主同步帧的重复时间对准通用业务，至少一个公共信道 ，以及具有不同频率和/或极化的至少一个特定频道。 接收器在天线元件之间切换。 天线元件的一部分接收发射信号，包括以预定时间间隔发送的多个子信道。 开关装置在单个天线元件之间切换以接收所发送的信号。 控制器命令交换设备基于每个主同步帧的预定时间间隔在预定时间段内分别选择每个天线元件。 在预定时间间隔期间确定发送信号的功率电平。