公开(公告)号：US08045534B2

公开(公告)日：2011-10-25

申请号：US11991295

申请日：2006-11-29

申请人： Byung-Jae Kwak ,  Nah-Oak Song ,  Jae-Young Kim

发明人： Byung-Jae Kwak ,  Nah-Oak Song ,  Jae-Young Kim

IPC分类号： H04W4/00

CPC分类号： H04W84/20

摘要： Provided is a method for switching a piconet device to a coordinator in a piconet. The method receives the latest order of precedence as the next PNC information from the current PNC. Thereafter, the method detects a P-CTA allocated to devices of the piconet using a beacon of a superframe received from the PNC. On failing to receive a beacon from the PNC, the method detects whether “beacon non-receipt” indicating information that is transmitted between piconet devices during the detected P-CTA. If the “beacon non-receipt” indicating information is not detected, the method does not perform a PNC appropriation operation. If the “beacon non-receipt” indicating information is detected, the method determines that the PNC has left the piconet without performing a normal PNC handover procedure and thus performs a PNC appropriation operation according to the order of precedence information.

摘要翻译： 提供了一种将微微网设备切换到微微网中的协调器的方法。 该方法从当前PNC接收最新的优先顺序作为下一个PNC信息。 此后，该方法使用从PNC接收到的超帧的信标来检测分配给微微网的设备的P-CTA。 在未能从PNC接收信标的情况下，该方法检测在检测到的P-CTA期间是否在微微网设备之间传送的信标“信标不接收”。 如果未检测到“信标不接收”指示信息，则该方法不执行PNC拨号操作。 如果检测到“信标不接收”指示信息，则该方法确定PNC已经离开微微网而不执行正常的PNC切换过程，并且因此根据优先顺序信息执行PNC拨号操作。

公开(公告)号：US20090257397A1

公开(公告)日：2009-10-15

申请号：US11991295

申请日：2006-11-29

申请人： Byung-Jae Kwak ,  Nah-Oak Song ,  Jae-Young Kim

发明人： Byung-Jae Kwak ,  Nah-Oak Song ,  Jae-Young Kim

IPC分类号： H04W36/00

CPC分类号： H04W84/20

摘要： Provided is a method for switching a piconet device to a coordinator in a piconet. The method receives the latest order of precedence as the next PNC information from the current PNC. Thereafter, the method detects a P-CTA allocated to devices of the piconet using a beacon of a superframe received from the PNC. On failing to receive a beacon from the PNC, the method detects whether “beacon non-receipt” indicating information that is transmitted between piconet devices during the detected P-CTA. If the “beacon non-receipt” indicating information is not detected, the method does not perform a PNC appropriation operation. If the “beacon non-receipt” indicating information is detected, the method determines that the PNC has left the piconet without performing a normal PNC handover procedure and thus performs a PNC appropriation operation according to the order of precedence information.

摘要翻译： 提供了一种将微微网设备切换到微微网中的协调器的方法。 该方法从当前PNC接收最新的优先顺序作为下一个PNC信息。 此后，该方法使用从PNC接收到的超帧的信标来检测分配给微微网的设备的P-CTA。 在未能从PNC接收信标的情况下，该方法检测在检测到的P-CTA期间是否在微微网设备之间传送的信标“信标不接收”。 如果未检测到“信标不接收”指示信息，则该方法不执行PNC拨号操作。 如果检测到“信标不接收”指示信息，则该方法确定PNC已经离开微微网而不执行正常的PNC切换过程，并且因此根据优先顺序信息执行PNC拨号操作。

公开(公告)号：US20100014611A1

公开(公告)日：2010-01-21

申请号：US12518951

申请日：2007-12-14

申请人： Byung-Jae Kwak ,  Nah-Oak Song ,  Dong-Seung Kwon

发明人： Byung-Jae Kwak ,  Nah-Oak Song ,  Dong-Seung Kwon

IPC分类号： H04L27/20 ,  H04L27/12

CPC分类号： H04L27/3494 ,  H04L27/3405

摘要： Disclosed is a binary signal modulator for minimizing deterioration of receiving performance caused by phase error. The binary signal modulator receives binary signals, and converts the binary signals into complex symbols according to a predetermined mapping relation. Here, the mapping relation is generated when a plurality of mapping symbols are arranged on a plurality of trajectories so that the distance between the mapping symbols is greater than or equal to a predetermined distance and the phase between the mapping symbols is greater than or equal to a predetermined angle from among the trajectories starting from a plurality of points on the complex plane, and a distance between the trajectories is greater than or equal to the minimum distance from among the distances between the points.

摘要翻译： 公开了一种用于最小化由相位误差引起的接收性能的劣化的二进制信号调制器。 二进制信号调制器接收二进制信号，并根据预定的映射关系将二进制信号转换成复符号。 这里，当多个映射符号被布置在多个轨迹上时，生成映射关系，使得映射符号之间的距离大于或等于预定距离，并且映射符号之间的相位大于或等于 从复平面上的多个点开始的轨迹之间的预定角度，并且轨迹之间的距离大于或等于从点之间的距离之间的最小距离。

公开(公告)号：US20120182836A1

公开(公告)日：2012-07-19

申请号：US13496870

申请日：2010-09-17

申请人： Byung-Jae Kwak ,  Kwang Chun Lee ,  Hyun Kyu Chung ,  Nah-Oak Song

发明人： Byung-Jae Kwak ,  Kwang Chun Lee ,  Hyun Kyu Chung ,  Nah-Oak Song

IPC分类号： G01S3/80 ,  H04B11/00

CPC分类号： H04B11/00

摘要： Disclosed is a technology for performing a communication using an ultrasonic wave in an environment where an electromagnetic shielding is so severe that a wireless communication using an electromagnetic is difficult. In the environment where the electromagnetic shielding is severe, an ultrasonic terminal according to the present invention may transmit the ultrasonic wave using a solid structure as a medium, and an ultrasonic base station may receive the ultrasonic wave using the solid structure as the medium.

摘要翻译： 公开了一种在电磁屏蔽严重使得使用电磁波的无线通信困难的环境中使用超声波进行通信的技术。 在电磁屏蔽严重的环境中，根据本发明的超声波端子可以使用固体结构作为介质传输超声波，并且超声波基站可以使用固体结构作为介质接收超声波。

公开(公告)号：US08170153B2

公开(公告)日：2012-05-01

申请号：US12518951

申请日：2007-12-14

申请人： Byung-Jae Kwak ,  Nah-Oak Song ,  Dong-Seung Kwon

发明人： Byung-Jae Kwak ,  Nah-Oak Song ,  Dong-Seung Kwon

IPC分类号： H04L27/06

CPC分类号： H04L27/3494 ,  H04L27/3405

摘要： Disclosed is a binary signal modulator for minimizing deterioration of receiving performance caused by phase error. The binary signal modulator receives binary signals, and converts the binary signals into complex symbols according to a predetermined mapping relation. Here, the mapping relation is generated when a plurality of mapping symbols are arranged on a plurality of trajectories so that the distance between the mapping symbols is greater than or equal to a predetermined distance and the phase between the mapping symbols is greater than or equal to a predetermined angle from among the trajectories starting from a plurality of points on the complex plane, and a distance between the trajectories is greater than or equal to the minimum distance from among the distances between the points.

摘要翻译： 公开了一种用于最小化由相位误差引起的接收性能的劣化的二进制信号调制器。 二进制信号调制器接收二进制信号，并根据预定的映射关系将二进制信号转换成复符号。 这里，当多个映射符号被布置在多个轨迹上时，生成映射关系，使得映射符号之间的距离大于或等于预定距离，并且映射符号之间的相位大于或等于 从复平面上的多个点开始的轨迹之间的预定角度，并且轨迹之间的距离大于或等于从点之间的距离之间的最小距离。