公开(公告)号：US20180124801A1

公开(公告)日：2018-05-03

申请号：US15553258

申请日：2015-06-26

Applicant: MOTOROLA SOLUTIONS, INC

Inventor： Xun FEI ,  Da-Jun CHEN ,  Yong TIAN ,  Dong ZHAO ,  Kang-Kai ZHAO ,  Zu ZHOU

IPC: H04W72/10 ,  H04W4/08 ,  H04W8/18 ,  H04W48/18 ,  H04W84/08

CPC classification number: H04W72/10 ,  H04W4/02 ,  H04W4/08 ,  H04W4/10 ,  H04W8/186 ,  H04W48/18 ,  H04W76/45 ,  H04W84/08

Abstract: A multi-system priority scan process including maintaining, at a mobile station (MS), a scan list including channels associated with talkgroups, the talkgroups including one or more trunked radio system talkgroups and one or more conventional radio system talkgroups. The MS negotiates, with a trunked radio system, a working channel for a particular trunked radio system talkgroup out of the trunked radio system talkgroups, the working channel being a traffic channel that the trunked radio system will first attempt to assign a call for that talkgroup. During a subsequent scan for talkgroup for activity associated with the particular trunked radio system talkgroup, the MS switches to the working channel and determines if a carrier is present on the working channel, without switching to a control channel of the trunked radio system to scan for activity associated with the particular trunked radio system talkgroup.