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1. 发明授权

US09042356B2 Method and apparatus for confirming delivery of group data to radio communication devices in a wireless communication system 有权
标题翻译：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
申请人： Dipendra M. Chowdhary , Thomas B. Bohn , David G. Wiatrowski
发明人： Dipendra M. Chowdhary , Thomas B. Bohn , David G. Wiatrowski
IPC分类号： H04W4/00 , H04W4/08 , H04L12/58
CPC分类号： H04W4/08 , H04L51/30 , H04L51/38
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。

2. 发明申请

US20130322414A1 METHOD AND APPARATUS FOR CONFIRMING DELIVERY OF GROUP DATA TO RADIO COMMUNICATION DEVICES IN A WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：确定无线通信系统中无线电通信设备的组数据传送方法和装置
公开(公告)号：US20130322414A1
公开(公告)日：2013-12-05
申请号：US13485125
申请日：2012-05-31
申请人： DIPENDRA M. CHOWDHARY , THOMAS B. BOHN , DAVID G. WIATROWSKI
发明人： DIPENDRA M. CHOWDHARY , THOMAS B. BOHN , DAVID G. WIATROWSKI
IPC分类号： H04B7/212 , H04W72/04 , H04J3/00
CPC分类号： H04W4/08 , H04L51/30 , H04L51/38
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。

3. 发明申请

US20130288643A1 METHOD AND APPARATUS FOR RESTRICTING RADIO ACCESS TO A SYSTEM 有权
标题翻译：限制无线电接入系统的方法和装置
公开(公告)号：US20130288643A1
公开(公告)日：2013-10-31
申请号：US13459882
申请日：2012-04-30
申请人： SATYANARAYAN R. PANPALIYA , THOMAS B. BOHN , DIPENDRA M. CHOWDHARY , DAVID G. WIATROWSKI , ZHIJUN ZHU , STEPHEN LEE , GRACE ZHONG , RUI YANG
发明人： SATYANARAYAN R. PANPALIYA , THOMAS B. BOHN , DIPENDRA M. CHOWDHARY , DAVID G. WIATROWSKI , ZHIJUN ZHU , STEPHEN LEE , GRACE ZHONG , RUI YANG
IPC分类号： H04W12/06 , H04W24/00
CPC分类号： H04L1/0061 , H03M13/13 , H04N21/6375
摘要： A first subscriber unit (SU) operating in a two-way radio frequency (RF) communications system having at least one fixed terminal, one or more channels, and a plurality of subscriber units, generates a first burst of data for transmission to the at least one fixed terminal. The first SU calculates a cyclic redundancy check (CRC) or checksum value over (i) at least a first portion of the first burst of data and (ii) at least a portion of a first private data. The first SU transmits the first burst of data and the calculated CRC/checksum value, but not the first private data, to the at least one fixed terminal. The fixed terminal then calculates its own CRC/checksum over the received burst and its own copy of the first private data, and compares the result with the received CRC/checksum. The fixed terminal authenticates the received burst if the values match.
摘要翻译：在具有至少一个固定终端，一个或多个信道和多个用户单元的双向射频（RF）通信系统中操作的第一用户单元（SU）生成第一数据突发以传输到至少一个固定终端。第一SU在（i）第一数据突发的至少第一部分和（ii）至少一部分第一私有数据之后计算循环冗余校验（CRC）或校验和值。第一SU将第一个数据突发和计算的CRC /校验和值发送到至少一个固定终端，而不是第一私有数据。然后，固定终端在接收的脉冲串及其自己的第一私人数据的副本上计算其自己的CRC /校验和，并将结果与接收的CRC /校验和进行比较。如果值匹配，则固定终端对接收到的突发进行认证。

4. 发明申请

US20120327927A1 Method of Efficiently Synchronizing to a Desired Timeslot in a Time Division Multiple Access Communication System 有权
标题翻译：在时分多址通信系统中有效同步到期望时隙的方法
公开(公告)号：US20120327927A1
公开(公告)日：2012-12-27
申请号：US13602752
申请日：2012-09-04
申请人： DAVID G. WIATROWSKI , DIPENDRA M. CHOWDHARY , THOMAS B. BOHN
发明人： DAVID G. WIATROWSKI , DIPENDRA M. CHOWDHARY , THOMAS B. BOHN
IPC分类号： H04W56/00
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。

5. 发明授权

US08279991B2 Method of efficiently synchronizing to a desired timeslot in a time division multiple access communication system 有权
标题翻译：在时分多址通信系统中有效同步到期望时隙的方法
公开(公告)号：US08279991B2
公开(公告)日：2012-10-02
申请号：US12331189
申请日：2008-12-09
申请人： David G. Wiatrowski , Dipendra M. Chowdhary , Thomas B. Bohn
发明人： David G. Wiatrowski , Dipendra M. Chowdhary , Thomas B. Bohn
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

6. 发明授权

US08150438B2 Method for initiating a communication while participating in another communication 有权
标题翻译：在参与另一个通信时发起通信的方法
公开(公告)号：US08150438B2
公开(公告)日：2012-04-03
申请号：US12433754
申请日：2009-04-30
申请人： Thomas B. Bohn , Dipendra M. Chowdhary , Satyanarayan R. Panpaliya , David G. Wiatrowski
发明人： Thomas B. Bohn , Dipendra M. Chowdhary , Satyanarayan R. Panpaliya , David G. Wiatrowski
IPC分类号： H04B7/00
CPC分类号： H04W84/08 , H04W4/10 , H04W76/10 , H04W76/45
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。

7. 发明申请

US20110255521A1 METHOD FOR DIRECT MODE CHANNEL ACCESS 有权
标题翻译：直接通道访问方法
公开(公告)号：US20110255521A1
公开(公告)日：2011-10-20
申请号：US12761023
申请日：2010-04-15
申请人： Thomas B. Bohn , David G. Wiatrowski
发明人： Thomas B. Bohn , David G. Wiatrowski
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。

8. 发明申请

US20100279726A1 METHOD FOR INITIATING A COMMUNICATION WHILE PARTICIPATING IN ANOTHER COMMUNICATION 有权
标题翻译：在其他通信中启动通信的方法
公开(公告)号：US20100279726A1
公开(公告)日：2010-11-04
申请号：US12433754
申请日：2009-04-30
申请人： Thomas B. Bohn , Dipendra M. Chowdhary , Satyanarayan R. Panpaliya , David G. Wiatrowski
发明人： Thomas B. Bohn , Dipendra M. Chowdhary , Satyanarayan R. Panpaliya , David G. Wiatrowski
IPC分类号： H04B7/00
CPC分类号： H04W84/08 , H04W4/10 , H04W76/10 , H04W76/45
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。

9. 发明申请

US20100086092A1 Method of Efficiently Synchronizing to a Desired Timeslot in a Time Division Multiple Access Communication System 有权
标题翻译：在时分多址通信系统中有效同步到期望时隙的方法
公开(公告)号：US20100086092A1
公开(公告)日：2010-04-08
申请号：US12331189
申请日：2008-12-09
申请人： David G. Wiatrowski , Dipendra M. Chowdhary , Thomas B. Bohn
发明人： David G. Wiatrowski , Dipendra M. Chowdhary , Thomas B. Bohn
IPC分类号： H04L7/04 , H04W56/00
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。

10. 发明申请

US20100085952A1 Method of Communicating which Channel is to be Monitored by Subscriber Units that are Idle in a Communication System 有权
标题翻译：通信系统中空闲的用户单元监控通道的方法
公开(公告)号：US20100085952A1
公开(公告)日：2010-04-08
申请号：US12331137
申请日：2008-12-09
申请人： DAVID G. WIATROWSKI , THOMAS B. BOHN , DIPENDRA M. CHOWDHARY , SATISH R. PANPALIYA , TEJAL S. PATEL , BADARINATH PATIBANDLA
发明人： DAVID G. WIATROWSKI , THOMAS B. BOHN , DIPENDRA M. CHOWDHARY , SATISH R. PANPALIYA , TEJAL S. PATEL , BADARINATH PATIBANDLA
IPC分类号： H04W74/00
CPC分类号： H04W16/26 , H04B7/15542 , H04W76/45
摘要： The present invention discloses, in a two-way radio frequency (RF) communications system having at least one repeater, a plurality of channels, and a plurality of subscriber units, a repeater receives a message that identifies a channel that is selected to serve as a rest channel for the system. The channel that is currently serving as the rest channel for the system is monitored by subscriber units that are idle in the system. If the repeater determines that the channel selected to serve as the rest channel is hosted by the repeater, the repeater periodically transmits an identity of the channel as the channel currently serving as the rest channel on at least the channel.
摘要翻译：本发明公开了一种具有至少一个中继器，多个信道和多个用户单元的双向射频（RF）通信系统，中继器接收标识被选择用作系统的休息通道。当前用作系统的休息信道的信道由在系统中空闲的用户单元监视。如果中继器确定选择用作休息信道的信道由中继器承载，则中继器至少在该信道上周期性地发送作为当前用作休息信道的信道的信道的标识。

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