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1.发明授权Method and apparatus for a remote network switch for a land mobile transmission trunked communication system 失效用于陆地移动传输集群通信系统的远程网络交换机的方法和装置
公开(公告)号：US5548802A
公开(公告)日：1996-08-20
申请号：US412098
申请日：1995-03-28
CPC分类号： H04W84/08 , H04W4/06 , H04W4/10 , H04W76/005 , H04W92/02
摘要： A method and apparatus for distributively interconnecting a plurality of land mobile trunked transmission communication systems into a wide area network includes a plurality of distributive radio network terminal (RNT) switch and a unique signaling protocol and a switching protocol especially adapted for communication of control signals in the subaudio band for interconnecting the trunked transmission communications systems into a wide area network that provides an expanded feature set of radio communications capabilities.
摘要翻译： 一种用于将多个陆地移动集群传输通信系统分散地互连到广域网中的方法和装置包括多个分布式无线电网络终端（RNT）交换机和唯一的信令协议以及特别适于通信控制信号的交换协议 用于将集群传输通信系统互连到提供无线电通信能力的扩展特征集的广域网中的子音频带。
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2.发明授权
公开(公告)号：US5815799A
公开(公告)日：1998-09-29
申请号：US693557
申请日：1996-08-07
CPC分类号： H04W84/08 , H04W4/06 , H04W4/10 , H04W76/005 , H04W92/02
摘要： A method and apparatus for providing priority access for users in a transmission trunked communication system, including a plurality of distributive radio network terminal (RNT) switches and a unique signaling protocol and a switching protocol especially adapted for communication of control signals in the subaudio band for interconnecting the trunked transmission communications systems into a wide area network that provides an expanded feature set of radio communications capabilities.
摘要翻译： 一种用于在传输集群通信系统中为用户提供优先接入的方法和装置，包括多个分布式无线电网络终端（RNT）交换机和唯一信令协议以及特别适用于在子音频频带中通信控制信号的交换协议， 将集群传输通信系统互连到提供无线电通信能力的扩展特征集的广域网中。
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公开(公告)号：US5724515A
公开(公告)日：1998-03-03
申请号：US611639
申请日：1996-03-06
申请人： Keith W. Barnes , Donald R. Bauman
发明人： Keith W. Barnes , Donald R. Bauman
CPC分类号： H04W88/06 , H04L29/06 , H04L69/14 , H04L69/26 , H04L69/324
摘要： A packet radio communications system having a protocol which provides for nonstandard communications. The protocol providing a standard format indicator to indicate whether a received packet is in a standard or nonstandard format. If the standard format indicator signals a standard packet format, then all transceivers understand the standard information contained in the packet. Transceivers which do not understand the nonstandard format will ignore the nonstandard packet and discard it. The nonstandard format contains a format type code which is decoded along with the standard format indicator to distinguish one manufacturer's nonstandard packet format from another manufacturer's nonstandard packet format. The nonstandard protocol is expanded to manage multiple block packetized transmissions. A Message Continuance (MC) field is incorporated into the header information of the packet to signal the beginning, middle, and end of a multi-block transmission.
摘要翻译： 具有提供非标准通信的协议的分组无线电通信系统。 该协议提供标准格式指示符以指示所接收的分组是标准格式还是非标准格式。 如果标准格式指示符发出标准数据包格式，则所有收发器都将了解数据包中包含的标准信息。 不了解非标准格式的收发器将忽略非标准数据包并将其丢弃。 非标准格式包含与标准格式指示符一起解码的格式类型代码，以将一个制造商的非标准分组格式与另一制造商的非标准分组格式区分开来。 扩展非标准协议以管理多个块分组传输。 消息连续（MC）字段被并入分组的标题信息中以表示多块传输的开始，中间和结束。
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4.发明授权Method and apparatus for a distributive wide area network for a land mobile transmission trunked communication system 失效用于陆地移动传输集群通信系统的分布式广域网的方法和装置
公开(公告)号：US5613196A
公开(公告)日：1997-03-18
申请号：US300629
申请日：1994-09-02
CPC分类号： H04W84/08 , H04W4/06 , H04W4/10 , H04W76/005 , H04W92/02
摘要： A land mobile transmission trunked communication system is provided with a unique switching protocol arrangement among repeaters that are networked to one or more external communication networks. The land mobile transmission trunked communication system includes a plurality of transceivers for transmitting and receiving transmission trunked radio communications over one or more radio channels. The transceivers communicate with a selected one of a plurality of repeaters to establish transmission trunked radio communications on a preassigned radio channel. The unique switching protocol arangement includes a switch that is operably connected to each repeater and selectively communicates information signals between a repeater and an external communication network. A bus system is operably connected to each repeater and to the switch for communicating control signals among all of the repeaters and the switch. The control signals include an indication for each repeater which is controlled by that repeater and by the switch as to free channel availability. Because the mechanism for controlling indications of free channel availability is operationally separate from the switch, the repeaters continue to provide transmission trunked communications to the transceivers in the event of a failure of the switch.
摘要翻译： 陆地移动传输集群通信系统在与一个或多个外部通信网络联网的中继器之间提供了独特的交换协议布置。 陆地移动传输集群通信系统包括用于通过一个或多个无线电信道发送和接收传输集群无线电通信的多个收发机。 收发机与多个中继器中选定的一个中继器进行通信，以在预分配的无线电信道上建立传输中继无线电通信。 独特的交换协议布置包括可操作地连接到每个中继器并且在中继器和外部通信网络之间选择性地传送信息信号的交换机。 总线系统可操作地连接到每个中继器和交换机，用于在所有中继器和交换机之间传送控制信号。 控制信号包括由该中继器和交换机控制的每个中继器的指示，用于释放信道可用性。 由于用于控制空闲信道可用性的指示的机制在操作上与交换机分离，所以在交换机发生故障的情况下，中继器继续向收发机提供传输中继通信。
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5.发明授权Method and apparatus for an alternate home channel for a land mobile transmission trunked communication system 失效用于陆地移动传输集群通信系统的替代归属信道的方法和装置
公开(公告)号：US5040237A
公开(公告)日：1991-08-13
申请号：US448004
申请日：1989-12-08
CPC分类号： H04W84/08 , H04W4/10 , H04W76/005
摘要： An alternate home channel for a land mobile transmission trunked communication system designates one of a plurality of repeaters for a given site or coverage zone as an alternate home repeater. The control signals transmitted over the subaudio band for all home channels repeaters in that site are also duplicatively transmitted over the subaudio band of the alternate home repeater. Each mobile transceiver will be programmed with two channel numbers. One for the home repeater and the other for the site alternate home repeater. When the power is turned on, the mobile transceiver determines which repeater to monitor by scanning both the home and alternate home channels. When a valid control message is detected on either channel, that channel becomes the monitor channel. Operation of the mobile transceiver is then generally similar to prior operation, with the exception that the monitor channel (either home or alternate home channel) is used instead of just the home channel.
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6.发明授权Signaling protocol for a distributive wide area transmission trunked communication system 失效用于分布式广域传输集群通信系统的信令协议
公开(公告)号：US5465386A
公开(公告)日：1995-11-07
申请号：US300930
申请日：1994-09-02
CPC分类号： H04W84/08 , H04W4/06 , H04W4/10 , H04W76/005 , H04W92/02
摘要： A land mobile transmission trunked communication system is provided with an enhanced control signal protocol. The land mobile transmission trunked communication system includes a plurality of transceivers for transmitting and receiving transmission trunked radio communications over one or more radio channels. The transmission trunked radio communications comprises an information signal having either voice information, data information, or both, and a control signal. The transceivers communicate with a selected one of a plurality of repeaters to establish transmission trunked radio communications on one of the preassigned set of the radio channels between the repeater and one or more transceivers. The enhanced signaling protocol and switching protocol are especially adapted for communicating control signals in the subaudio band to interconnect a plurality of transmission trunked communication systems into a wide area network. The enhanced switching and signaling protocol provide an expanded feature set of radio communication capabilities.
摘要翻译： 陆地移动传输集群通信系统具有增强的控制信号协议。 陆地移动传输集群通信系统包括用于通过一个或多个无线电信道发送和接收传输集群无线电通信的多个收发机。 传输中继无线电通信包括具有语音信息，数据信息或两者的信息信号和控制信号。 收发机与多个中继器中的所选择的一个中继器通信，以在中继器和一个或多个收发器之间的预先分配的无线电信道集合之一上建立传输中继无线电通信。 增强的信令协议和交换协议特别适用于在子音频频带中传送控制信号以将多个传输集群通信系统互连到广域网中。 增强的交换和信令协议提供了扩展的无线电通信能力的特征集。
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公开(公告)号：US5440759A
公开(公告)日：1995-08-08
申请号：US300831
申请日：1994-09-02
CPC分类号： H04W84/08 , H04W4/06 , H04W4/10 , H04W76/005 , H04W92/02
摘要： A modular networking switch system for a land mobile transmission trunked communication system provides transmission trunked communications with a plurality of transceivers and networks the plurality of transceivers with remote transcievers in one or more external communication networks. The networking switch system comprises a plurality of channel interface modules (CIM), at least one telephone interface module (TIM), a system network module (SNM), a pulse code modulated (PCM) bus system, a control bus system separate from the PCM bus system, and a system management module (SMM). Each CIM interfaces with a repeater system that provides transmission trunked radio communications on preassigned radio channels between the repeater system and at least one of the plurality of transceivers. Each TIM interfaces with an external telephone communication network that provides a full duplex telephone communication between a remote transciever and the TIM. The SNM interfaces the networking switch system with other external networking switch systems that provide transmission trunked radio communications to establish a wide area network transmission trunked communication system. The PCM bus system is connected to each CIM, each TIM and the SNM for transferring voice and tone information among the modules in the networking switch system. The control bus system is separate from the PCM bus system and is connected to each CIM, each TIM and the SNM for transferring control information supplied by each CIM, each TIM and the SNM to all other modules in the networking switch system. The SMM is connected to the PCM bus system and the control bus system and selectively establishes voice and tone information paths on the PCM bus system in response to control information on the control bus system that is supplied by the other modules. As a result, the networking switch system provides for distributive control of trunking and networking interconnections within the networking switch system.
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8.发明授权Method and apparatus for a distributive wide area network for a land mobile transmission trunked communication system 失效用于陆地移动传输集群通信系统的分布式广域网的方法和装置
公开(公告)号：US5159701A
公开(公告)日：1992-10-27
申请号：US716757
申请日：1991-06-18
CPC分类号： H04W84/08 , H04W4/06 , H04W4/10 , H04W76/005 , H04W92/02
摘要： A method and apparatus for distributively interconnecting a plurality of land mobile trunked transmission communication systems into a wide area network includes a plurality of distributive radio network terminal (RNT) switch means and a unique signaling protocol and a switching protocol especially adapted for communication of control signals in the subaudio band for interconnecting the trunked transmission communications systems into a wide area network that provides an expanded feature set of radio communications capabilities.
摘要翻译： 一种用于将多个陆地移动集群传输通信系统分散地互连到广域网的方法和装置包括多个分配无线电网络终端（RNT）交换装置和独特的信令协议以及特别适用于控制信号通信的交换协议 在用于将集群传输通信系统互连到提供无线电通信能力的扩展特征集的广域网中的子音频带中。
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9.发明授权公开(公告)号：US06804529B1
公开(公告)日：2004-10-12
申请号：US09776416
申请日：2001-02-02
IPC分类号： H04B700
摘要： A system for channel assignment in a trunked transmission communication system including a plurality of subscribers. A plurality of subscribers is provided home channel assignment to reduce collisions. A home channel alias is provided for home channel coverage where a designated home channel is unavailable. A system for call grouping is provided to avoid talk group splitting. A first check is used to determine if other channels are conducting communications with identical home and talk group information. A second check is available after a temporary channel assignment. In one system both the home channel aliasing and call grouping are performed.
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10.发明授权Method and apparatus for trunked radio repeater communications with backwards compatibility 失效具有向后兼容性的中继无线电中继器通信的方法和装置公开(公告)号：US06374115B1
公开(公告)日：2002-04-16
申请号：US09058678
申请日：1998-04-10
IPC分类号： H04Q720
CPC分类号： H04W84/08 , H04W56/00 , H04W88/181 , H04W92/02
摘要： A trunked radio repeater communication system capable of use in a networked system includes a plurality of distributive switches and a unique signaling protocol and a switching protocol for interconnecting the trunked transmission communications systems into a wide area network that provides an expanded feature set of radio communications capabilities. The trunked radio repeater system including a protocol supporting communications for repeaters and/or subscribers conducting communications using existing protocols, such as the Logic Trunked Radio (LTR) protocol and supporting additional special functions.
摘要翻译： 能够在网络系统中使用的中继无线电中继器通信系统包括多个分配交换机和独特的信令协议和用于将集群传输通信系统互连到广域网的交换协议，该广域网提供无线电通信能力的扩展特征集 。 中继无线电中继器系统包括支持用于中继器和/或用户进行通信的协议的协议，所述中继器和/或订户使用诸如逻辑中继无线电（LTR）协议的现有协议进行通信，并且支持附加的特殊功能。
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