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    Method and apparatus for resolving call collisions in a digital conventional direct mode
    2.
    发明授权
    Method and apparatus for resolving call collisions in a digital conventional direct mode 有权
    用于在数字常规直接模式中解决呼叫冲突的方法和装置

    公开(公告)号：US09215689B2

    公开(公告)日：2015-12-15

    申请号：US13793244

    申请日：2013-03-11

    Applicant: MOTOROLA SOLUTIONS, INC.

    Inventor： Satyanarayan R. Panpaliya ,  Dipendra M. Chowdhary ,  Sanjaykumar S. Karpoor ,  Badarinath Patibandla ,  David G. Wiatrowski

    IPC: H04H20/71 ,  H04W72/00 ,  H04W76/02 ,  H04W76/00 ,  H04W84/22

    CPC classification number: H04W72/005 ,  H04W76/14 ,  H04W76/18 ,  H04W76/45 ,  H04W84/22

    Abstract: A process for resolving call collisions in a digital conventional direct mode includes monitoring a direct mode communication channel for transmissions from other direct mode radios in the plurality of direct mode radios. In response to detecting a new call request: identifying a last radio to transmit on the direct mode channel, transmitting a new call request for receipt by the last direct mode radio to transmit, monitoring the direct mode channel for a response from the last radio to transmit, and if a call grant granting the new call request is received from the last radio to transmit, initiating the new direct mode call on the direct mode communication channel. If the call grant is not received, at least temporarily refraining from initiating the new direct mode call.

    Abstract translation: 用于在数字常规直接模式中解决呼叫冲突的过程包括监视直接模式通信信道用于来自多个直接模式无线电中的其他直接模式无线电的传输。 响应于检测到新的呼叫请求：识别在直接模式信道上要发送的最后一个无线电，发送用于由最后一个直接模式无线电接收的新呼叫请求进行发送，监视来自最后一个无线电的响应的直接模式信道 发送，并且如果从最后的无线电接收到授予新的呼叫请求的呼叫许可发送，则在直接模式通信信道上发起新的直接模式呼叫。 如果未接收到呼叫授权，则至少暂时禁止启动新的直接模式呼叫。

    Apparatus and method for enabling efficient handover of a receiving radio between radio frequency sites
    3.
    发明授权
    Apparatus and method for enabling efficient handover of a receiving radio between radio frequency sites 有权
    用于实现无线电频率站点之间的接收无线电的有效切换的装置和方法

    公开(公告)号：US09578578B2

    公开(公告)日：2017-02-21

    申请号：US14106530

    申请日：2013-12-13

    Applicant: MOTOROLA SOLUTIONS, INC

    Inventor： Hun Weng Khoo ,  Dipendra M Chowdhary ,  Yueh Ching Chung ,  Chebron Padmanaba ,  Satyanarayan R Panpaliya ,  Badarinath Patibandla

    IPC: H04W36/30 ,  H04J3/16 ,  H04W56/00 ,  H04W36/00 ,  H04W36/02 ,  H04W36/36

    CPC classification number: H04W36/30 ,  H04J3/16 ,  H04W36/0061 ,  H04W36/026 ,  H04W36/36 ,  H04W56/00

    Abstract: A radio receives audio information on a first traffic channel in a radio frequency (RF) site. The radio receives, on the first traffic channel, an announcement of alternative traffic channels on which the audio information is also transmitted in adjacent RF sites. The radio determines signal strength indicators for the alternative traffic channels in the adjacent RF sites while continuing to receive the audio information on the first traffic channel. The radio determines that a signal strength associated with the first traffic channel is below a first threshold. Based on the determination and as a function of the scanning, the radio roams to a second traffic channel, selected from the alternative traffic channels, in an adjacent RF site where a signal strength associated with the second traffic channel is above a second threshold. The radio receives the audio information via the second traffic channel.

    Abstract translation: 无线电接收机在射频（RF）站点的第一业务信道上接收音频信息。 无线电接收机在第一业务信道上接收在相邻RF站点上发送音频信息的备选业务信道的通告。 无线电装置确定相邻RF站点中替代业务信道的信号强度指示符，同时继续在第一业务信道上接收音频信息。 无线电确定与第一业务信道相关联的信号强度低于第一阈值。 基于扫描的确定和功能，无线电漫游到相邻RF站点中从替代业务信道中选择的第二业务信道，其中与第二业务信道相关联的信号强度高于第二阈值。 无线电通过第二业务信道接收音频信息。

    Method and apparatus for responding to a potential mass random access event
    4.
    发明授权
    Method and apparatus for responding to a potential mass random access event 有权
    响应潜在的大规模随机存取事件的方法和装置

    公开(公告)号：US09277428B2

    公开(公告)日：2016-03-01

    申请号：US14264821

    申请日：2014-04-29

    Applicant: MOTOROLA SOLUTIONS, INC

    Inventor： Dipendra M Chowdhary ,  John P Belmonte ,  Thomas B Bohn ,  Satyanarayan R Panpaliya ,  Badarinath Patibandla

    IPC: H04W28/02 ,  H04W24/04 ,  H04W74/08

    CPC classification number: H04W24/04 ,  H04W28/0236 ,  H04W28/0242 ,  H04W48/02 ,  H04W74/0833

    Abstract: A radio controller monitors a radio channel for a first period of time and determines a first indication of signals received without detecting synchronization or with detecting synchronization but failing error correction during that time. Responsive to determining that the first indication is above a predetermined threshold indicative of an interference condition, causing an instruction to be broadcast identifying a subset of subscriber devices allowed transmitting random access requests on the radio channel. The radio controller monitors the radio channel for a second period of time and determines a second indication during that time. If the second indication is an improvement over the first indication, the radio controller determines that the interference condition is caused by the mass random access event.

    Abstract translation: 无线电控制器在第一时间段内监测无线电信道，并且确定接收到的信号的第一指示而不检测同步或者检测到同步，但在该时间期间失败的纠错。 响应于确定第一指示高于指示干扰条件的预定阈值，引起广播指令，标识允许在无线电信道上发送随机接入请求的订户设备的子集。 无线电控制器在第二段时间内监视无线电信道，并在该时间确定第二指示。 如果第二指示是对第一指示的改进，则无线电控制器确定干扰条件是由大规模随机接入事件引起的。

    Device, system, and method for switching between a narrowband network and a broadband network
    5.
    发明授权
    Device, system, and method for switching between a narrowband network and a broadband network 有权

    公开(公告)号：US12015955B2

    公开(公告)日：2024-06-18

    申请号：US17555872

    申请日：2021-12-20

    Applicant: MOTOROLA SOLUTIONS, INC.

    Inventor： Badarinath Patibandla ,  Daniel P. Zetzl ,  David J. Ley ,  Mohd Faisal Abdullah

    IPC: H04W36/00 ,  H04W36/14 ,  H04W36/24

    CPC classification number: H04W36/0022 ,  H04W36/14 ,  H04W36/24

    Abstract: A device, system, and method for switching between a narrowband network and a broadband network is provided. A radio device determines conditions of a broadband network and receives, from a narrowband network site, access criteria indicating that a subset of a plurality of radio devices can register with the narrowband network site to communicate on a narrowband network. In response to the conditions meeting one or more given conditions and receiving the access criteria, when the radio device is communicating on the broadband network, the radio device may continue communicating on the broadband network; or when the radio device is communicating on the narrowband network, or attempting to register with the narrowband network site, the radio device switches, from communicating on the narrowband network, or attempting to register with the narrowband network site, to communicating on the broadband network.

    Dynamically allowing a guest device to a join a private CBRS network
    6.
    发明授权
    Dynamically allowing a guest device to a join a private CBRS network 有权

    公开(公告)号：US10575164B1

    公开(公告)日：2020-02-25

    申请号：US16360974

    申请日：2019-03-21

    Applicant: MOTOROLA SOLUTIONS, INC.

    Inventor： Isam R. Makhlouf ,  Ethan Y. Chen ,  Badarinath Patibandla ,  David G. Wiatrowski

    IPC: H04W8/06 ,  H04W8/18 ,  H04W84/10

    Abstract: Methods and systems for dynamically allowing a guest device to a join a private citizens broadband radio systems (CBRS) network. The method includes determining one of a location of the guest device and a location of a public safety incident. The public safety incident is associated with the guest device. The method also includes determining that one of the location of the guest device and the location of the public safety incident is in a coverage area of the private CBRS network. The method further includes reconfiguring the private CBRS network to allow operation of the guest device on the private CBRS network, and operating the guest device on the private CBRS network.

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