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31.发明授权公开(公告)号：US08279991B2
公开(公告)日：2012-10-02
申请号：US12331189
申请日：2008-12-09
IPC分类号： H04L7/04
CPC分类号： H04W56/0085 , H04L7/041
摘要： In operation, a transmitting device selects a synchronization pattern associated with the desired timeslot that is at least mutually exclusive from synchronization patterns associated with other timeslots on the same frequency in the system. Once selected, the transmitting device transmits a burst embedding the synchronization pattern that was selected, where appropriate. If the receiving device detects the synchronization pattern, it immediately synchronizes with the timeslot with confidence that it is synchronizing to the desired timeslot by using sets of synchronization patterns associated with the desired timeslot that are at least mutually exclusive from synchronization patterns associated with the other timeslots on the same frequency.
摘要翻译： 在操作中，发送设备选择与期望时隙相关联的同步模式，该期望时隙至少与系统中相同频率上与其他时隙相关联的同步模式相互排斥。 一旦选择，发送装置在适当的情况下发送嵌入所选择的同步模式的突发。 如果接收设备检测到同步模式，则通过使用与期望时隙相关联的同步模式集合，它们随时与时隙同步，立即与时隙同步，所述同步模式至少与与其它时隙相关联的同步模式互斥 在同一频率
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32.发明授权公开(公告)号：US08150438B2
公开(公告)日：2012-04-03
申请号：US12433754
申请日：2009-04-30
IPC分类号： H04B7/00
摘要： Within a two way radio frequency communication system, a repeater transmits an identity of a rest channel when transmitting during an active communication call on a channel other than the rest channel. A subscriber unit communicating within the active communication, receives the identity of the rest channel, leaves the active communication; and initiates a new communication on the rest channel.
摘要翻译： 在双向无线电频率通信系统中，当在除了休眠信道之外的信道上进行主动通信呼叫期间发送时，中继器发送休息信道的标识。 在主动通信中通信的用户单元接收休息信道的身份，离开主动通信; 并在休息频道上启动新的通信。
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公开(公告)号：US20110255521A1
公开(公告)日：2011-10-20
申请号：US12761023
申请日：2010-04-15
IPC分类号： H04W72/04
CPC分类号： H04W74/0808 , H04W72/0446
摘要： A method for direct mode channel access in a time division multiple access (TDMA) system includes: assigning a radio operating in the TDMA system to transmission on a first time slot of a direct mode channel; initiating a request for a direct mode transmission on the direct mode channel; determining, by the radio, whether there is communication activity present in the first time slot or a second time slot of the direct mode channel; aligning, by the radio, to a selected slot timing based on the determining step; and transmitting, by the radio, with the selected slot timing on the first time slot.
摘要翻译： 一种用于时分多址（TDMA）系统中的直接模式信道接入的方法包括：将在TDMA系统中操作的无线电分配给在直接模式信道的第一时隙上的传输; 在直接模式信道上发起对直接模式传输的请求; 通过无线电确定在直接模式信道的第一时隙或第二时隙中是否存在通信活动; 基于确定步骤，通过无线电对准所选择的时隙定时; 以及由所述无线电装置在所述第一时隙上与所选择的时隙定时进行发送。
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34.发明申请公开(公告)号：US20100279726A1
公开(公告)日：2010-11-04
申请号：US12433754
申请日：2009-04-30
IPC分类号： H04B7/00
摘要： Within a two way radio frequency communication system, a repeater transmits an identity of a rest channel when transmitting during an active communication call on a channel other than the rest channel. A subscriber unit communicating within the active communication, receives the identity of the rest channel, leaves the active communication; and initiates a new communication on the rest channel.
摘要翻译： 在双向无线电频率通信系统中，当在除了休眠信道之外的信道上进行主动通信呼叫期间发送时，中继器发送休息信道的标识。 在主动通信中通信的用户单元接收休息信道的身份，离开主动通信; 并在休息频道上启动新的通信。
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35.发明申请公开(公告)号：US20100086092A1
公开(公告)日：2010-04-08
申请号：US12331189
申请日：2008-12-09
CPC分类号： H04W56/0085 , H04L7/041
摘要： The time required for the receiving device to synchronize to a desired timeslot is reduced. In operation, a transmitting device selects a synchronization pattern associated with the desired timeslot that is at least mutually exclusive from synchronization patterns associated with other timeslots on the same frequency in the system. Once selected, the transmitting device transmits a burst embedding the synchronization pattern that was selected, where appropriate. If the receiving device detects the synchronization pattern, it immediately synchronizes with the timeslot with confidence that it is synchronizing to the desired timeslot. Using synchronization pattern associated with the desired timeslot that is at least mutually exclusive from synchronization patterns associated with the other timeslots on the same frequency also improves spectral efficiency in direct-mode transmissions, thus allowing more than one subscriber unit to simultaneously transmit in direct mode on a frequency without interfering with other transmissions on the frequency.
摘要翻译： 接收设备与期望时隙同步所需的时间减少。 在操作中，发送设备选择与期望时隙相关联的同步模式，该期望时隙至少与系统中相同频率上与其他时隙相关联的同步模式相互排斥。 一旦选择，发送装置在适当的情况下发送嵌入所选择的同步模式的突发。 如果接收设备检测到同步模式，则它立即与时隙同步，使其与期望的时隙同步。 使用与期望时隙相关联的同步模式，其至少与同一频率上的其他时隙相关联的同步模式互斥，也提高了直接模式传输中的频谱效率，从而允许多个用户单元以直接模式同时发送 一个频率，而不会干扰频率上的其他传输。
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公开(公告)号：US08730855B2
公开(公告)日：2014-05-20
申请号：US12976081
申请日：2010-12-22
CPC分类号： H04W56/0085 , H04W76/45
摘要： A method for detecting a channel in a mixed-mode communications system is presented. The channel contains a primary synchronization pattern in a predetermined location within the channel. The primary synchronization pattern is compared against different predetermined channel synchronization patterns to detect a channel. Upon detection of the channel, a look-back channel detector confirms the existence of the channel by using the location of the primary synchronization pattern. Detection and confirmation of the channel may be employed simultaneously to each channel of a multiple-channel direct mode of operation signal. Audio holes may be eliminated in a 2:1 TDMA direct mode operation where both time slots contain signals from two different originating communication devices and the signals have different priority.
摘要翻译： 提出了一种用于在混合模式通信系统中检测信道的方法。 该信道在信道内的预定位置包含主同步模式。 将主同步模式与不同的预定信道同步模式进行比较以检测信道。 在检测到信道时，回溯信道检测器通过使用主同步模式的位置来确认信道的存在。 信道的检测和确认可以同时用于多信道直接操作模式信号的每个信道。 可以在2：1 TDMA直接模式操作中消除音频孔，其中两个时隙都包含来自两个不同始发通信设备的信号，并且信号具有不同的优先级。
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公开(公告)号：US08184654B2
公开(公告)日：2012-05-22
申请号：US12331155
申请日：2008-12-09
申请人： Tejal S. Patel , Dipendra M. Chowdhary , Satish R. Panpaliya , Badarinath Patibandla , David G. Wiatrowski
发明人： Tejal S. Patel , Dipendra M. Chowdhary , Satish R. Panpaliya , Badarinath Patibandla , David G. Wiatrowski
IPC分类号： H04J3/17
CPC分类号： H04W4/20
摘要： A repeater receives an indication that a subscriber unit is initiating a call session on a channel, and indicates that the channel is busy. The repeater repeats a transmission from the subscriber unit and sets a timer for a first time upon determination that the transmission has ended. The timer is set for a second time if a new transmission is not received from a subscriber unit that is allowed to transmit on the channel prior to the expiration of the first time; otherwise, the repeater accepts a new transmission from a subscriber unit that is allowed to transmit on the channel if the new transmission is received prior to an expiration of the second time. Upon receipt of each new transmission received prior to the expiration of the second time, the repeater clears the timer, repeats the transmission on the channel, and resets the timer for the first time upon determination that the transmission has ended.
摘要翻译： 中继器接收到用户单元在信道上发起呼叫会话并指示频道正忙的指示。 中继器重复来自用户单元的传输，并且在确定传输已经结束时首次设置定时器。 如果在第一次到期之前没有从允许在信道上发送的用户单元接收到新的传输，则定时器被设置为第二次; 否则，如果在第二次到期之前接收到新传输，则中继器接受来自用户单元的新传输，该新传输被允许在信道上进行发送。 在接收到在第二次到期之前接收到的每个新传输之后，中继器清除定时器，重复该信道上的传输，并且在确定传输已经结束之后，首次重置定时器。
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公开(公告)号：US08139613B2
公开(公告)日：2012-03-20
申请号：US12253380
申请日：2008-10-17
申请人： John P. Belmonte , Dipendra M. Chowdhary , Yueh Ching Chung , Hun Weng Khoo , David G. Wiatrowski
发明人： John P. Belmonte , Dipendra M. Chowdhary , Yueh Ching Chung , Hun Weng Khoo , David G. Wiatrowski
IPC分类号： H04J3/06
CPC分类号： H04W48/16
摘要： To perform channel inspection, a wireless communication device conducts a full inspection on a first channel carrying a first signal that includes: determining a location of a first synchronization message; and determining whether the first signal is of interest. Upon determining that the first signal is not of interest, the first channel is marked, wherein the marking includes remembering the location of the first synchronization message. The device leaves the first channel and determines an expected location of a second synchronization message on the first channel based on the location of the first synchronization message. Upon returning to the first channel which carries a second signal, the communication device conduct a partial inspection that includes: detecting whether the second synchronization message is present at the expected location, wherein the presence of the second synchronization message indicates that the second signal is not of interest.
摘要翻译： 为了执行信道检查，无线通信设备对承载第一信号的第一信道进行全面检查，该第一信道包括：确定第一同步消息的位置; 以及确定所述第一信号是否是感兴趣的。 当确定第一信号不感兴趣时，标记第一信道，其中标记包括记住第一同步消息的位置。 设备离开第一信道并且基于第一同步消息的位置在第一信道上确定第二同步消息的预期位置。 在返回到携带第二信号的第一信道时，通信设备进行部分检查，其包括：检测第二同步消息是否存在于预期位置，其中存在第二同步消息指示第二信号不是 出于兴趣。
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39.发明授权Method and system of managing emergency alarms in a wireless communication system 有权在无线通信系统中管理紧急报警的方法和系统公开(公告)号：US07805125B2
公开(公告)日：2010-09-28
申请号：US11364323
申请日：2006-02-28
IPC分类号： H04M11/04
CPC分类号： H04M1/72541 , H04W4/90 , H04W76/50
摘要： A system for managing emergency alarm messages in a wireless communications system is disclosed. A first subscriber is assigned an emergency alarm responder role to send an acknowledgement message and present information from a received emergency alarm message to a user of the first subscriber, when the first subscriber receives the emergency alarm message. A second subscriber is assigned an emergency alarm monitor role to present information from the received emergency alarm message to a user of the second subscriber.
摘要翻译： 公开了一种在无线通信系统中管理紧急警报消息的系统。 当第一用户接收到紧急警报消息时，第一用户被分配有紧急警报响应者角色，以发送确认消息并将来自接收到的紧急警报消息的信息呈现给第一用户的用户。 为第二用户分配紧急警报监视器角色，以将信息从接收到的紧急警报消息提供给第二用户的用户。
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40.发明授权Method and apparatus for updating and using updated group aliases and incident IDs 有权更新和使用更新的组别名和事件ID的方法和装置公开(公告)号：US08738052B2
公开(公告)日：2014-05-27
申请号：US13329480
申请日：2011-12-19
申请人： David G. Wiatrowski
发明人： David G. Wiatrowski
IPC分类号： H04H20/71
CPC分类号： H04W4/08 , H04L12/189 , H04L12/1895 , H04L61/00 , H04L61/2069 , H04M3/00 , H04M3/42059 , H04M3/5116 , H04M2203/2044 , H04W8/186
摘要： An updated group alias, based on one or more of a location, function, and purpose of a group, is transmitted to a subscriber unit (SU) and displayed at the SU, in place of a previously provisioned group ID or group alias associated with the group, during communications with, or when the SU is tuned to, the group. An incident ID, associated with one or more groups and identifying an incident, is received and stored at a SU. The SU embeds the stored incident ID in all future communications with the one or more groups and, upon request, scans a set of groups and/or channels for communications having the incident ID embedded therein. An incident ID alias described one or more of a name, location, function, or purpose of the incident, may also be received and associated with the incident ID.
摘要翻译： 基于组的位置，功能和目的中的一个或多个的更新组别名被发送到订户单元（SU），并在SU处显示，代替先前提供的组ID或组别名 该组在与SU进行通信期间或当SU调整到该组时。 与一个或多个组相关联并识别事件的事件ID被接收并存储在SU中。 SU在与所述一个或多个组的所有未来通信中嵌入所存储的事件ID，并且根据请求扫描一组用于具有嵌入其中的事件ID的通信的组和/或通道。 描述事件的名称，位置，功能或目的中的一个或多个的事件ID别名也可以被接收并与事件ID相关联。
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