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21.发明申请METHOD FOR INTERRUPTING VOICE TRANSMISSIONS WITHIN A MULTI SITE COMMUNICATION SYSTEM 有权用于在多站点通信系统中中断语音传输的方法公开(公告)号：US20110117835A1
公开(公告)日：2011-05-19
申请号：US12621170
申请日：2009-11-18
IPC分类号： H04B7/14
CPC分类号： H04W72/005 , H04W72/10 , H04W76/45 , H04W84/08
摘要： A method for interrupting voice transmissions within a multi site communication system includes operating a repeater to engage in an interruptible voice communication; to identify an open burst location based on a repeat delay when the interruptible voice communication is sourced directly via a wireless network, and to identify the open burst location as irrelevant when the interruptible voice communication is indirectly sourced via a wireless network; and repeat the interruptible voice communication including the open burst location.
摘要翻译： 一种用于中断多站点通信系统内的语音传输的方法包括操作中继器以进行可中断语音通信; 当可中断语音通信经由无线网络直接提供时，基于重复延迟来识别开放脉冲串位置，并且当可中断语音通信经由无线网络间接地来源时，将所述开放脉冲串位置识别为不相关; 并重复包括打开的突发位置的可中断语音通信。
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22.发明授权Method and device for automatic creation of a location-based talk group call with reduced messaging overhead 有权用于自动创建基于位置的通话组呼叫并减少消息开销的方法和设备公开(公告)号：US09131344B2
公开(公告)日：2015-09-08
申请号：US13590318
申请日：2012-08-21
摘要： Disclosed is a method of automatic establishment of a location-based talk group call with reduced messaging overhead. The initiating device may be a subscriber unit (SU). The SU determines a geographic reference location and generates location data representative of the location. The SU broadcasts a location-based talk group call header including the location data and including a location-based talk group call identifier field set to cause other SUs receiving the call header to receive and output subsequent data associated with the call header responsive to determining that its current geographic location satisfies the location criterion of the call. The location criterion may be fully determined by the initiating SU and specified in the call header, and may take the form of a specified radius that extends from the geographic reference location represented in the call header.
摘要翻译： 公开了一种以减少的消息开销自动建立基于位置的通话组呼叫的方法。 发起设备可以是用户单元（SU）。 SU确定地理参考位置并生成表示位置的位置数据。 SU广播包括位置数据的基于位置的通话组呼叫头部，并且包括设置的基于位置的通话组呼叫标识符字段，以使得接收到呼叫头部的其他SU接收并输出与呼叫头部相关联的后续数据，以响应于确定 其当前地理位置满足呼叫的位置标准。 位置标准可以由发起的SU完全确定并在呼叫头部中指定，并且可以采取从呼叫头部中表示的地理参考位置延伸的指定半径的形式。
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公开(公告)号：US08605650B2
公开(公告)日：2013-12-10
申请号：US12136177
申请日：2008-06-10
IPC分类号： H04W4/00
摘要： A system and method for interrupting a transmitting device during a call. In the system, calls are transmitted from a first device on a communication channel as a series of channel frames. At predetermined times during the transmission, the transmitting device is configured to drop channel frames, resulting in open channel frame periods where the transmitting device is not transmitting on the communication channel. During these open channel frame periods, the transmitting device is also configured to switch to a receiving mode. Other devices in the system are capable of switching into a transmitting mode during the open channel frame periods and, when applicable, sending an interrupt request on the communication channel to the transmitting device in order to request access to the channel.
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24.发明授权Methods and apparatus for diffusing channel timing among subscriber units in TDMA direct mode 有权TDMA直接模式用户单元漫游信道定时的方法和装置公开(公告)号：US08462766B2
公开(公告)日：2013-06-11
申请号：US13042342
申请日：2011-03-07
IPC分类号： H04J3/06
CPC分类号： H04W56/004 , H04B7/2643 , H04W92/18
摘要： A method for diffusing channel timing among a plurality of subscriber units operating in TDMA Direct Mode, wherein the method includes: receiving, from a second one of the subscriber units operating in the TDMA Direct Mode, a first message; determining first channel timing from the received message; determining whether the received first channel timing is correct, wherein the determining is based at least on comparing a generation of the first subscriber unit with a generation of the second subscriber unit; when the received first channel timing is correct, starting a random delay; upon expiration of the random delay, transmitting a first forced propagation message to propagate the first channel timing to at least a third one of the subscriber units operating in the TDMA Direct Mode and having a higher generation than the generations of the first and the second subscriber units.
摘要翻译： 一种用于在TDMA直接模式下操作的多个用户单元之中扩散信道定时的方法，其中该方法包括：从以TDMA直接模式操作的第二用户单元接收第一消息; 从所接收的消息确定第一信道定时; 确定所接收的第一信道定时是否正确，其中所述确定至少基于将所述第一用户单元的生成与所述第二用户单元的生成进行比较; 当接收的第一信道定时正确时，开始随机延迟; 在随机延迟到期时，发送第一强制传播消息以将第一信道定时传播到以TDMA直接模式操作的用户单元中的至少第三个，并且具有比第一和第二用户的代 单位。
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公开(公告)号：US08422679B2
公开(公告)日：2013-04-16
申请号：US12253411
申请日：2008-10-17
IPC分类号： H04L29/06
CPC分类号： H04K1/00 , H04L9/065 , H04L63/0428 , H04L63/06 , H04L2209/34 , H04L2209/80
摘要： A transmitting device encrypts DMR voice superframes using encryption parameters and sends the encryption parameters in at least one of the voice superframes by: identifying a selected number of bits from a plurality of vocoder frames the voice superframe; replacing each of the identified bits with a corresponding bit of a first encryption parameter; placing at least one encryption parameter in an embedded signaling field of the voice superframe; and transmitting the voice superframe with the encryption parameters to a receiving device. The receiving device extracts the encryption parameters, which can be a key identifier, an algorithm identifier, and an initialization vector for use in decrypting messages from the transmitting device.
摘要翻译： 发送设备使用加密参数对DMR语音超帧进行加密，并且通过以下方式发送加密参数：至少一个语音超帧：从语音超帧的多个声码器帧中识别选定数量的比特; 用第一加密参数的对应位替换所识别的比特中的每一个; 在语音超帧的嵌入式信令字段中放置至少一个加密参数; 以及将具有加密参数的语音超帧传送到接收设备。 接收装置提取可以是密钥标识符的加密参数，算法标识符和用于解密来自发送装置的消息的初始化向量。
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26.发明申请CHANNEL STRUCTURE FOR NON-CONTENTION BASED WINDOWS AND CONTENTION BASED RANDOM ACCESS REQUESTS 有权基于非内容窗口和基于内容的随机访问请求的通道结构公开(公告)号：US20120069786A1
公开(公告)日：2012-03-22
申请号：US12888177
申请日：2010-09-22
申请人： David G. Wiatrowski , Dipendra M. Chowdhary , Thomas B. Bohn , Puneet K. Puri , Roopak M. Ingole , Delia M. Marchosky , Abhishek Kumar
发明人： David G. Wiatrowski , Dipendra M. Chowdhary , Thomas B. Bohn , Puneet K. Puri , Roopak M. Ingole , Delia M. Marchosky , Abhishek Kumar
CPC分类号： H04W74/02 , G01S5/14 , H04B7/2606 , H04W8/22 , H04W36/06 , H04W56/0045 , H04W64/00 , H04W72/0413 , H04W72/042 , H04W74/04 , H04W74/0833 , H04W84/047
摘要： Methods of communicating location information from a subscriber to a repeater are described. The subscriber switches from a working channel to a data revert channel, transmits a request for a periodic or one-time window to transmit an update, and determines from grant information in the response announcement the allocated window and frame before switching back to the working channel. Before the allocated time, the subscriber switches to the data revert channel, confirms whether it remains scheduled to transmit the update from a repeater announcement, and if so transmits the location update in either the current or reserved window. The announcements from the repeater contain the identity of the next window and frame and the subscriber reserved to use the window in addition to grant information. The subscribers may or may not be time-aligned and the data and data revert channels may or may not be synchronized.
摘要翻译： 描述从订户到中继器传送位置信息的方法。 用户从工作信道切换到数据恢复信道，发送周期性或一次性窗口的请求以发送更新，并且在切换回工作信道之前从响应通知中的授权信息确定分配的窗口和帧 。 在分配时间之前，用户切换到数据恢复信道，确认它是否保持调度以从中继器通知发送更新，如果是，则在当前或预留的窗口中发送位置更新。 来自中继器的公告包含下一个窗口和帧的标识，并且除了授予信息之外还保留用于使用窗口的用户。 用户可以或可以不是时间对齐的，并且数据和数据还原信道可以同步也可以不同步。
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公开(公告)号：US07983210B2
公开(公告)日：2011-07-19
申请号：US11144991
申请日：2005-06-03
CPC分类号： H04W24/00
摘要： A method for scanning a TDMA channel by a mobile station in a wireless communications landscape is disclosed. A mobile station detects RF energy on a TDMA channel to detect activity in the detected RF energy. The mobile station maintains knowledge of previous activity on the channel. If activity is present on the channel, the mobile station performs inspection of the activity to determine whether the activity is activity of interest, wherein the activity is activity of interest based on a comparison of the activity with the previous activity. The mobile station aborts the inspection of the activity, if activity is not present on the channel and the mobile station aborts the inspection of the activity, if the determined activity is not activity of interest.
摘要翻译： 公开了一种在无线通信环境中由移动台扫描TDMA信道的方法。 移动站检测TDMA信道上的RF能量以检测检测到的RF能量中的活动。 移动台维持对频道上的以前活动的知识。 如果频道上存在活动，则移动台执行该活动的检查以确定活动是否是感兴趣的活动，其中活动是基于活动与先前活动的比较而感兴趣的活动。 如果所确定的活动不是感兴趣的活动，则移动台中止活动的检查，如果活动不存在于该频道上，则移动台中止活动的检查。
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28.发明授权Method and apparatus for confirming delivery of group data to radio communication devices in a wireless communication system 有权确定在无线通信系统中向无线电通信设备传送组数据的方法和装置公开(公告)号：US09042356B2
公开(公告)日：2015-05-26
申请号：US13485125
申请日：2012-05-31
摘要： A method and apparatus for confirming delivery of group data to a plurality of radio communication devices in a wireless communication system. The wireless communication system includes a plurality of radio communication devices in communication with a sender. In operation, the sender sends group data to the plurality of radio communication devices and further determines a call hang time sufficient to contain a dedicated acknowledgment slot for each of the plurality of radio communication devices. The sender reserves an acknowledgment slot in the determined call hang time for each radio communication device and further sends an acknowledgment polling signal to each radio communication device, where the acknowledgment polling signal identifies the respective acknowledgment slot that is reserved for each radio communication device to acknowledge receipt of the group data. The sender accordingly receives an acknowledgment from the radio communication devices during its respective reserved acknowledgment slot.
摘要翻译： 一种在无线通信系统中确认向多个无线电通信设备传送组数据的方法和设备。 无线通信系统包括与发送者通信的多个无线电通信设备。 在操作中，发送方向多个无线电通信设备发送组数据，并进一步确定足以包含多个无线电通信设备中的每一个的专用确认时隙的呼叫挂起时间。 发送方在确定的每个无线电通信设备的呼叫挂起时间中保留一个确认时隙，并且进一步向每个无线电通信设备发送确认轮询信号，其中确认轮询信号标识为每个无线电通信设备保留的相应确认时隙以确认 接收组数据。 发送者相应地在其相应的保留确认时隙期间从无线电通信设备接收确认。
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29.发明授权Method and apparatus for tracking a channel timing channel message and supporting channel scanning in a digital mobile radio system 有权用于在数字移动无线电系统中跟踪信道定时信道消息和支持信道扫描的方法和装置公开(公告)号：US08660111B2
公开(公告)日：2014-02-25
申请号：US13166151
申请日：2011-06-22
IPC分类号： H04W56/00
CPC分类号： H04W56/0015
摘要： A method and apparatus for enabling a radio to track channel timing and support channel scanning A non-leading radio operating on a communications channel, determines a diffusion period during which channel timing is to be propagated from a leading radio to non-leading radios operating on the communications channel. The non-leading radio implements a first scanning pattern during the diffusion period to scan a CT designated channel for a control timing message with a timing signal sent from the leading radio. The first scanning pattern involves scanning the CT designated channel during every other scan interval and scanning non-priority channels and priority channels during scan intervals not used on the CT designated channel.
摘要翻译： 一种用于使得无线电能够跟踪信道定时并支持信道扫描的方法和装置在通信信道上操作的非前置无线电确定扩频周期，在该扩散周期期间，将信道定时从主导无线电传播到非导频无线电， 通信通道。 非前置无线电在扩散周期期间实施第一扫描模式，以从具有从前置无线电发送的定时信号扫描CT指定信道用于控制定时消息。 第一扫描模式涉及在每隔一个扫描间隔期间扫描CT指定信道，并且在CT指定信道上未使用的扫描间隔期间扫描非优先级信道和优先信道。
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30.发明授权Method for synchronizing direct mode time division multiple access (TDMA) transmissions 有权用于同步直接模式时分多址（TDMA）传输的方法公开(公告)号：US08599826B2
公开(公告)日：2013-12-03
申请号：US12760787
申请日：2010-04-15
IPC分类号： H04J3/06
CPC分类号： H04W56/0015 , H04J3/0641 , H04J3/0652
摘要： A method for synchronizing the direct mode TDMA transmission of a set of radios by following a selected radio as the leader includes: receiving, by a radio, a communication from an other radio; identifying, by the radio, a leader according to a leadership election rule using the received communication from the other radio and a current leader information; setting, by the radio, the identified leader as its leader; and synchronizing, by the radio, a time slot boundary with a time slot boundary defined by the leader.
摘要翻译： 一种用于通过跟随选择的无线电作为前导者来同步一组无线电的直接模式TDMA传输的方法包括：通过无线电接收来自另一无线电的通信; 根据领导选举规则，通过无线电方式确定领导者，使用来自另一无线电台的接收到的通信和当前的领导信息; 以无线电方式确定所领导的领导人为领导人; 并且由无线电装置将时隙边界与由领导者定义的时隙边界同步。
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