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    Systems and methods to provide wireless accessory backup communication links
    11.
    发明授权
    Systems and methods to provide wireless accessory backup communication links 有权

    公开(公告)号：US10178707B2

    公开(公告)日：2019-01-08

    申请号：US15525020

    申请日：2016-05-13

    Applicant: MOTOROLA SOLUTIONS, INC.

    Inventor： Yong Tian ,  Da-jun Chen ,  Xun Fei ,  Dong Zhao ,  Kang-Kai Zhao

    IPC: H04W76/19 ,  H04W36/00 ,  H04M11/04

    Abstract: A communications system and method of operation thereof. The communications system includes a communication network, a plurality of subscriber units and accessories, and a communications server. Each of the plurality of accessories are associated with and linked to one of the of subscriber units by a wireless connection. The communications server communicates with the plurality of subscriber units via the communication network, and is configured to obtain and maintain a plurality of data on each of the plurality of subscriber units, and generate a backup list identifying secondary subscriber units to which each of the plurality of accessories can link. Upon detecting a condition where communication drops below a desired level of service, the communication server is configured to identify a secondary subscriber unit from the first accessory's backup list and instruct the secondary subscriber unit to link with the first accessory.

    Method, device, and system for multi-system priority scan
    12.
    发明授权
    Method, device, and system for multi-system priority scan 有权

    公开(公告)号：US10070452B2

    公开(公告)日：2018-09-04

    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: H04B7/00 ,  H04W72/10 ,  H04W4/08 ,  H04W8/18 ,  H04W48/18 ,  H04W84/08 ,  H04W76/45 ,  H04W4/02 ,  H04W4/10

    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.

    Method and systems for maintaining a proxy mapping table
    13.
    发明授权
    Method and systems for maintaining a proxy mapping table 有权

    公开(公告)号：US09843457B2

    公开(公告)日：2017-12-12

    申请号：US15507293

    申请日：2014-11-21

    Applicant: MOTOROLA SOLUTIONS, INC.

    Inventor： Da-Jun Chen ,  Xun Fei ,  Yong Tian ,  Jian-Xiang Wang ,  Dong Zhao

    IPC: H04W4/00 ,  H04L12/28 ,  H04W60/00 ,  H04W88/04

    CPC classification number: H04L12/28 ,  H04W60/00 ,  H04W88/04

    Abstract: In at least one embodiment, a radio access network (RAN) device maintains a proxy mapping table (PMT) of any mobile radios that are currently registered with the RAN via a mobile subscriber unit (MSU). The PMT indicates, for each mobile radio listed in the PMT, the particular MSU via which that particular mobile radio is registered with the RAN. The RAN device receives a first service request for a first mobile radio that is listed in the PMT as being registered with the RAN via a first MSU and, in response to receiving the first service request, makes a determination that an air-interface link is available for communication between the RAN and the first MSU. In response to making the determination, the RAN device communicates the first service request via the available air-interface link to the first MSU for delivery to the first mobile radio.

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