公开(公告)号：US06456614B1

公开(公告)日：2002-09-24

申请号：US09443933

申请日：1999-11-19

申请人： Sheng Guan ,  Paulus Sastrodjojo ,  Juergen Kockmann ,  James S. Umstetter ,  Elie Jreij ,  Olaf Dicker

发明人： Sheng Guan ,  Paulus Sastrodjojo ,  Juergen Kockmann ,  James S. Umstetter ,  Elie Jreij ,  Olaf Dicker

IPC分类号： H04J306

CPC分类号： H04W56/0085 ,  H04B7/2681 ,  H04W92/10

摘要： A method and system are provided for synchronizing wireless communication devices. The method and system involve providing a first unit and a second unit for communication over a wireless communication link. Further, an identical identifier is assigned to the first and second units. Also, a data message is constructed having control data. The data message includes a plurality of data bytes and a portion of the control data corresponds to the identifier. The data message is split into a plurality of message portions and the message portions are transmitted from the first unit to the second unit. The message portions are received at the second unit. Control data from the message portions is assembled to form a control message at the second unit. The identifier portion of the control message is compared with the identifier assigned to the second unit. When the identifier portion of the control message matches the identifier assigned to the second unit, the second unit enters an in-synchronization state. When the identifier portion of the control message is different from the identifier assigned to the second unit, the second unit enters an out-synchronization state. At least one prior control message is searched for the identifier assigned to the second unit when the second unit is in the out-synchronization state. A matching identifier is synchronized with when the matching identifier is found in the prior control messages. When the prior control messages are free of the identifier, the second unit resynchronizes with the first unit.

摘要翻译： 提供了一种用于同步无线通信设备的方法和系统。 该方法和系统涉及提供第一单元和第二单元，用于通过无线通信链路进行通信。 此外，相同的标识符被分配给第一和第二单元。 此外，构造具有控制数据的数据消息。 数据消息包括多个数据字节，并且一部分控制数据对应于标识符。 数据消息被分成多个消息部分，并且消息部分从第一单元发送到第二单元。 消息部分在第二单元处被接收。 来自消息部分的控制数据被组合以在第二单元处形成控制消息。 将控制消息的标识符部分与分配给第二单元的标识符进行比较。 当控制消息的标识符部分与分配给第二单元的标识符匹配时，第二单元进入同步状态。 当控制消息的标识符部分与分配给第二单元的标识符不同时，第二单元进入失步状态。 当第二单元处于不同步状态时，搜索至少一个先前的控制消息来分配给第二单元的标识符。 匹配标识符与当前控制消息中找到匹配标识符时同步。 当先前控制消息没有标识符时，第二单元与第一单元重新同步。

公开(公告)号：US06397075B1

公开(公告)日：2002-05-28

申请号：US09443972

申请日：1999-11-19

申请人： Paulus Sastrodjojo ,  Juergen Kockmann ,  Olaf Dicker ,  Uwe Sydon ,  Sheng Guan

发明人： Paulus Sastrodjojo ,  Juergen Kockmann ,  Olaf Dicker ,  Uwe Sydon ,  Sheng Guan

IPC分类号： H04B700

CPC分类号： H04B7/2656 ,  H04W48/16 ,  H04W72/02

摘要： A method and system are provided for wireless communication. A base unit and a mobile unit are provided which are operable to communicate over an air interface having a plurality of channels. The method and system further include transmitting from the mobile unit a message on a selected channel for a first predetermined time. The channels are scanned at the base unit. Also, the message is detected at the base unit on the selected channel and the selected channel is used as an initial channel for a wireless communication link between the mobile unit and the base unit.

摘要翻译： 提供了一种用于无线通信的方法和系统。 提供基本单元和移动单元，其可操作以通过具有多个通道的空中接口进行通信。 所述方法和系统还包括在所述第一预定时间内从所述移动单元发送所选择的信道上的消息。 通道在基本单元处扫描。 此外，在所选择的信道上的基站单元处检测到该消息，并且将所选择的信道用作移动单元和基本单元之间的无线通信链路的初始信道。

公开(公告)号：US06651207B1

公开(公告)日：2003-11-18

申请号：US09378189

申请日：1999-08-20

申请人： Olaf Dicker ,  Uwe Sydon ,  Juergen Kockmann ,  Paulus Sastrodjojo

发明人： Olaf Dicker ,  Uwe Sydon ,  Juergen Kockmann ,  Paulus Sastrodjojo

IPC分类号： G06F1100

CPC分类号： H04L1/0009 ,  H04B1/715 ,  H04B17/309 ,  H04B17/382 ,  H04B2001/7154 ,  H04L1/0001 ,  H04L1/18 ,  H04M1/72511 ,  H04M2250/02 ,  H04M2250/08 ,  H04W24/00 ,  H04W72/02

摘要： The present invention comprises a system and method for improving voice quality of cordless communications. The system comprises at least one mobile unit having circuitry for maintaining an individual communication link with a base station. The system also has logic residing in the base station for selecting a frequency to maintain the communication link, monitoring parameters relating to the quality of the frequency, and performing data correction on the frequency in response to the monitored quality of the frequency.

摘要翻译： 本发明包括用于提高无绳通信语音质量的系统和方法。 该系统包括至少一个具有用于维持与基站的单独通信链路的电路的移动单元。 系统还具有驻留在基站中的逻辑，用于选择维持通信链路的频率，监视与频率质量有关的参数，以及响应于所监视的频率质量对频率执行数据校正。

公开(公告)号：US06480721B1

公开(公告)日：2002-11-12

申请号：US09113396

申请日：1998-07-10

申请人： Uwe Sydon ,  Juergen Kockmann ,  Olaf Dicker ,  Paulus Sastrodjojo

发明人： Uwe Sydon ,  Juergen Kockmann ,  Olaf Dicker ,  Paulus Sastrodjojo

IPC分类号： H04Q720

CPC分类号： H04B1/715 ,  H04B1/713 ,  H04B2001/7154

摘要： A method and system are disclosed for avoiding bad frequency subsets in a frequency hopping cordless telephone system. A base station communicates with the handsets using frequencies selected from active frequency subsets. Bad frequency subsets are avoided by monitoring the air interface between the base station and handsets for errors in active frequency subsets. Errors in each active frequency subset are counted during a short-term interval using an associated short-term error counter and during a long-term interval using an associated long-term error counter. After each short-term interval, it is evaluated whether any of the short-term error counters has a value that is greater than a defined threshold. After each long-term interval, it is evaluated whether any of the long-term error counters has a value greater than an error count for a blocked frequency subset. A blocked frequency subset is then substituted for an active frequency subset if an associated short-term error counter is greater than the defined threshold or if a long-term error counter is greater than the error count for a blocked frequency subset.

摘要翻译： 公开了一种用于避免跳频无绳电话系统中的不良频率子集的方法和系统。 基站使用从活动频率子集中选择的频率与手机进行通信。 通过监视基站和手机之间的空中接口以避免有效频率子集中的错误，可以避免错误的频率子集。 每个活动频率子集中的错误在短期间隔期间使用关联的短期错误计数器以及在使用相关联的长期错误计数器的长期间隔期间进行计数。 在每个短期间隔之后，评估任何短期错误计数器是否具有大于定义阈值的值。 在每个长期间隔之后，评估任何长期错误计数器是否具有大于阻塞频率子集的错误计数的值。 如果相关联的短期错误计数器大于定义的阈值，或者如果长期错误计数器大于阻塞频率子集的错误计数，则将阻塞的频率子集替换为有效频率子集。

公开(公告)号：US06249540B1

公开(公告)日：2001-06-19

申请号：US09113415

申请日：1998-07-10

申请人： Olaf Dicker ,  Paulus Sastrodjojo ,  Uwe Sydon ,  Juergen Kockmann

发明人： Olaf Dicker ,  Paulus Sastrodjojo ,  Uwe Sydon ,  Juergen Kockmann

IPC分类号： H04B1713

CPC分类号： H04B1/715 ,  H04B1/713 ,  H04B2001/7154

摘要： A method and system are disclosed for shifting frequency subsets to avoid base station interference in a frequency hopping cordless telephone system. A base station communicates with the handsets using frequencies selected from active frequency subsets. Frequency subsets are shifted to avoid interference by selecting frequencies initially from a defined number of active frequency subsets where each of the active frequency subsets is used before repeating an active frequency subset. The number of active frequency subsets is then changed for a defined period of time to change the period with which the active frequency subsets are used. After the defined period of time, the number of active frequency subsets is returned to the defined number of active frequency subsets.

摘要翻译： 公开了一种用于移动频率子集以避免跳频无绳电话系统中的基站干扰的方法和系统。 基站使用从活动频率子集中选择的频率与手机进行通信。 通过从限定数量的有效频率子集中选择频率来移动频率子集以避免干扰，其中在重复有效频率子集之前使用每个活动频率子集。 然后，活动频率子集的数量被改变一定的时间段，以改变使用活动频率子集的周期。 在定义的时间段之后，活动频率子集的数量返回到定义的有效频率子集数。

公开(公告)号：US07224745B2

公开(公告)日：2007-05-29

申请号：US09884415

申请日：2001-06-18

申请人： Uwe Sydon ,  Juergen Kockmann ,  Paulus Sastrodjojo ,  Sheng Guan

发明人： Uwe Sydon ,  Juergen Kockmann ,  Paulus Sastrodjojo ,  Sheng Guan

IPC分类号： H04B15/00

CPC分类号： H04W52/24 ,  H04W52/08 ,  H04W52/42 ,  H04W52/50

摘要： A method for avoiding interference in a wireless telecommunication system is provided. The method includes providing communication between a first and second component at an initial frequency. A plurality of successive line quality indicators is determined at a line quality monitor of the first component. Consecutive line quality indicators are summed over a predetermined time to determine a slow hop count. A determination is made as to whether the slow hop count is greater than a slow hop threshold. A determination is made as to whether to provide communication with the first component at a second frequency when the slow hop count is greater than the slow hop threshold. This determination is based on a power level of the second component and a communication strength received from the second component at the first component. A signal is communicated from the first component to the second component requesting the second component to provide communication at the second frequency.

摘要翻译： 提供了一种避免无线电信系统中的干扰的方法。 该方法包括以初始频率提供第一和第二组件之间的通信。 在第一组件的线路质量监视器处确定多个连续的线路质量指示符。 连续线路质量指示符在预定时间内相加以确定慢跳数。 确定慢跳数是否大于慢跳阈值。 当慢跳数大于慢跳阈值时，确定是否以第二频率提供与第一组件的通信。 该确定基于第二分量的功率电平和从第一分量处的第二分量接收的通信强度。 信号从第一分量传送到第二分量，请求第二分量以第二频率提供通信。

公开(公告)号：US06278742B1

公开(公告)日：2001-08-21

申请号：US09444028

申请日：1999-11-19

申请人： Uwe Sydon ,  Juergen Kockmann ,  Paulus Sastrodjojo ,  Sheng Guan

发明人： Uwe Sydon ,  Juergen Kockmann ,  Paulus Sastrodjojo ,  Sheng Guan

IPC分类号： H04B1500

CPC分类号： H04W52/24 ,  H04W52/08 ,  H04W52/42 ,  H04W52/50

摘要： A method for avoiding interference in a wireless telecommunication system is provided. The method includes providing communication between a first and second component at an initial frequency. A plurality of successive line quality indicators is determined at a line quality monitor of the first component. Consecutive line quality indicators are summed over a predetermined time to determine a slow hop count. A determination is made as to whether the slow hop count is greater than a slow hop threshold. A determination is made as to whether to provide communication with the first component at a second frequency when the slow hop count is greater than the slow hop threshold. This determination is based on a power level of the second component and a communication strength received from the second component at the first component. A signal is communicated from the first component to the second component requesting the second component to provide communication at the second frequency.

摘要翻译： 提供了一种避免无线电信系统中的干扰的方法。 该方法包括以初始频率提供第一和第二组件之间的通信。 在第一组件的线路质量监视器处确定多个连续的线路质量指示符。 连续线路质量指示符在预定时间内相加以确定慢跳数。 确定慢跳数是否大于慢跳阈值。 当慢跳数大于慢跳阈值时，确定是否以第二频率提供与第一组件的通信。 该确定基于第二分量的功率电平和从第一分量处的第二分量接收的通信强度。 信号从第一分量传送到第二分量，请求第二分量以第二频率提供通信。

公开(公告)号：US06496498B1

公开(公告)日：2002-12-17

申请号：US09443931

申请日：1999-11-19

申请人： Juergen Kockmann ,  Uwe Sydon ,  Paulus Sastrodjojo

发明人： Juergen Kockmann ,  Uwe Sydon ,  Paulus Sastrodjojo

IPC分类号： H04B728

CPC分类号： H04W52/04 ,  H04B1/1027

摘要： A method is provided for interfacing telecommunication devices. A base unit is connected to a landline for wireless communication. The base unit has a power supply operating at a power supply frequency. A mobile unit is provided for wireless communication with the base unit. The base unit is interfaced to the mobile unit using an interface protocol that has a plurality of frames. Each frame is for transmitting signals from the mobile unit to the base unit and from the base unit to the mobile unit. The frames have a specified frame length. An interference frequency is detected at either the base unit or the mobile unit. The interference frequency is compared with the power supply frequency. The frames are synchronized with the power supply and the specified frame length is adjusted based on the power supply frequency when the interference frequency and the power supply frequency are substantially the same.

摘要翻译： 提供了一种用于接口电信设备的方法。 基本单元连接到用于无线通信的固定电话。 基座单元具有以电源频率工作的电源。 提供移动单元用于与基本单元的无线通信。 基本单元使用具有多个帧的接口协议与移动单元接口。 每个帧用于将信号从移动单元发送到基本单元，并且从基本单元传输到移动单元。 帧具有指定的帧长度。 在基本单元或移动单元处检测到干扰频率。 将干扰频率与电源频率进行比较。 帧与电源同步，并且当干扰频率和电源频率基本相同时，基于电源频率来调整指定的帧长度。

公开(公告)号：US07274725B2

公开(公告)日：2007-09-25

申请号：US09751949

申请日：2000-12-28

申请人： Juergen Kockmann ,  Uwe Sydon ,  Olaf Dicker

发明人： Juergen Kockmann ,  Uwe Sydon ,  Olaf Dicker

IPC分类号： H04B1/713 ,  H04B7/212 ,  H04J3/00 ,  H04L12/43

CPC分类号： H04B1/715 ,  H04B1/7143 ,  H04B7/265 ,  H04B2001/7154

摘要： A frequency hopping spread spectrum telecommunication system is provided, which selects carrier frequencies based on the number of active slots. The duration that carriers have been employed is then based on the number of active slots (401, 402), rather than the number of frames (22). Thus, non-interfered with carriers can be used more often than interfered with carriers, thereby improving voice quality.

摘要翻译： 提供了一种跳频扩频电信系统，其基于活动时隙的数量来选择载波频率。 然后使用载波的持续时间基于活动时隙（401,402）的数量，而不是帧数（22）。 因此，不妨碍载波的干扰可以比干扰载波更频繁地使用，从而提高语音质量。

公开(公告)号：US06690771B2

公开(公告)日：2004-02-10

申请号：US09884413

申请日：2001-06-18

申请人： Gerhard Siemens ,  Uwe Sydon ,  Holger Steinbach ,  Olaf Dicker ,  Juergen Kockmann

发明人： Gerhard Siemens ,  Uwe Sydon ,  Holger Steinbach ,  Olaf Dicker ,  Juergen Kockmann

IPC分类号： H04M164

CPC分类号： H04M1/72502 ,  H04M1/6505 ,  H04M1/658 ,  H04M1/663 ,  H04M1/72513

摘要： A system and method for call screening in a wireless telephone system. When a call is received on an answering machine (17) associated with a base part (11), the user at a portable part (12) may select a call screen button (19). The resulting signal is received at the base part (11), which then enters a broadcast mode. The incoming answering machine message is broadcast to all handsets (12, 14, 16). In a TDMA system, an audio message is broadcast from a base part (11) during a single time slot of a time division. The user at a particular portable part may then select a pick up button to pick up the call.

摘要翻译： 一种用于无线电话系统中呼叫筛选的系统和方法。 当在与基座部件（11）相关联的应答机（17）上接收到呼叫时，便携式部件（12）处的用户可以选择呼叫屏幕按钮（19）。 所得到的信号在基本部分（11）接收，然后进入广播模式。 传入的应答机消息被广播到所有的手机（12,14,16）。 在TDMA系统中，在时分的单个时隙期间，从基本部分（11）广播音频消息。 然后，特定便携式部件的用户可以选择拾取按钮来接听呼叫。