公开(公告)号：US09578469B2

公开(公告)日：2017-02-21

申请号：US14505202

申请日：2014-10-02

Applicant: MOTOROLA SOLUTIONS, INC

Inventor： Charles R. Ruelke ,  Robert J. Corke ,  Bob Logalbo

IPC: H04B7/00 ,  H04W4/08 ,  H04L5/00 ,  H04W72/04 ,  H04W76/00 ,  H04W84/08

CPC classification number: H04W4/08 ,  H04L5/0016 ,  H04W72/048 ,  H04W76/14 ,  H04W76/45 ,  H04W84/08

Abstract: A method and system for direct mode operation (DMO) of a talkgroup enables device to device (D2D) DMO operation leveraged from a Land Mobile Radio (LMR) system. The method includes scanning at a radio receiver a defined radio frequency spectrum; receiving at the radio receiver in the defined radio frequency spectrum a wake-up signal; identifying a talkgroup identifier in the wake-up signal, wherein the talkgroup identifier corresponds to a talkgroup being monitored by the radio receiver; in response to identifying the talkgroup identifier, decoding code sequences included in the wake-up signal; identifying in at least one of the code sequences both a center frequency and a transmission bandwidth of the DMO transmission; and tuning the radio receiver to receive the DMO transmission at the center frequency and transmission bandwidth.

Abstract translation: 通话组的直接模式操作（DMO）的方法和系统使得能够从陆地移动无线电（LMR）系统利用的设备到设备（D2D）DMO操作。 该方法包括在无线电接收机处扫描定义的射频频谱; 在定义的无线电频谱的无线电接收机处接收唤醒信号; 识别所述唤醒信号中的通话组标识符，其中所述通话组标识符对应于由所述无线电接收器监视的通话组; 响应于识别所述通话组标识符，解码包括在所述唤醒信号中的代码序列; 在DMO传输的中心频率和传输带宽中的至少一个码序列中识别; 并调谐无线电接收机以在中心频率和传输带宽上接收DMO传输。

公开(公告)号：US10812172B1

公开(公告)日：2020-10-20

申请号：US16592926

申请日：2019-10-04

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Robert J. Corke ,  Dean H. Skuldt

IPC: H04B7/08 ,  H04B1/16 ,  H04B17/318 ,  H04L5/00 ,  H04W16/28

Abstract: A device and method to determine incoming communications is provided. A device in communication an array of antenna devices determines respective quality metric weights for respective signal data representing respective signals received by the antenna devices. The device applies the respective quality metric weights to the respective signal data to determine total received signal data. The device determines, based on the total received signal data, that the array of the antenna devices has received an incoming communication.