公开(公告)号：US07693924B2

公开(公告)日：2010-04-06

申请号：US11264886

申请日：2005-11-02

申请人： Sang In Cho ,  Sangsung Choi ,  Kwang Roh Park

发明人： Sang In Cho ,  Sangsung Choi ,  Kwang Roh Park

IPC分类号： G06F17/14

CPC分类号： H04L27/265 ,  H04L27/263

摘要： A 2N-point and N-point FFT/IFFT dual mode processor is provided. The processor includes a butterfly operator, the first and second MUXs, and the first and second N-point FFT processors. The butterfly operator receives 2N data and butterfly-operates on the received 2N data when receiving a control signal ‘0’ from the controller. The first and second MUXs respectively receive results from the butterfly operator to output the results in an increment of N when receiving a control signal ‘0’ from the controller, and respectively outputs different N data when receiving a control signal ‘1’ from the controller. The first and second N-point FFT processors N-point FFT operate on the results from the first and second MUXs and respectively output the same under control of the controller. Since the N-point FFT operation can be simultaneously performed two times at a receiver, the performance of the receiver can be enhanced.

摘要翻译： 提供2N点和N点FFT / IFFT双模式处理器。 处理器包括蝶形运算符，第一和第二MUX以及第一和第二N点FFT处理器。 当从控制器接收到控制信号“0”时，蝶形运算符接收2N个数据并对接收的2N数据进行蝶形运算。 当从控制器接收到控制信号“0”时，第一和第二MUX分别接收蝶形运算器的结果以输出N的增量，并且当从控制器接收到控制信号“1”时分别输出不同的N数据 。 第一和第二N点FFT处理器N点FFT对来自第一和第二MUX的结果进行操作，并在控制器的控制下分别输出。 由于在接收机可以同时进行N点FFT运算两次，所以可以提高接收机的性能。

公开(公告)号：USRE44334E1

公开(公告)日：2013-07-02

申请号：US13050669

申请日：2011-03-17

申请人： Yong Ae Jeon ,  Ji Eun Kim ,  Sangsung Choi ,  Kwang Roh Park

发明人： Yong Ae Jeon ,  Ji Eun Kim ,  Sangsung Choi ,  Kwang Roh Park

IPC分类号： H04J3/22

CPC分类号： H04W72/1263 ,  H04L47/14 ,  H04L47/50 ,  H04W84/18

摘要： An apparatus for transmitting WPAN (Wireless Personal Area Network) MAC (Medium Access Control) frames includes a transport frame management unit for creating MAC transport frames if data is generated from an upper protocol and application layer unit, classifying the created MAC transport frames by kinds, and managing the classified MAC transport frames by queues, a transport memory control unit for transmitting the transport frames at a high speed, and a transport frame transmission unit for responsible for the transmission of the transport frames by judging the transmission time of the frames.

公开(公告)号：US20080071847A1

公开(公告)日：2008-03-20

申请号：US11576565

申请日：2005-11-02

申请人： Sang In Cho ,  Sang Sung Choi ,  Kwang Roh Park

发明人： Sang In Cho ,  Sang Sung Choi ,  Kwang Roh Park

IPC分类号： G06F17/14 ,  G06F7/38 ,  G06F7/52

CPC分类号： H04L27/263 ,  H04L27/265

摘要： Provided is a method for transforming data using a look-up table. The method includes the steps of: (a) mapping preprocessed input binary data to a constellation diagram divided into four quadrants to output a first complex number; (b) performing addition/subtraction operations between real numbers and between imaginary numbers with respect to the first complex number and a second complex number; and (c) reading a fourth complex from a look-up table in response to the first complex number, the second complex number and a third complex number, the look-up table outputting the fourth complex by performing a subtraction operation on multiplication results between real numbers and between imaginary numbers and an addition operation on multiplication results between the real numbers and the imaginary numbers with respect to the result value of the step (b) and the third complex number. Accordingly, it is possible to reduce the hardware size at the time of IFFT/FFT design and to provide a high-speed, low-power operation.

摘要翻译： 提供了一种使用查找表来转换数据的方法。 该方法包括以下步骤：（a）将预处理的输入二进制数据映射到分成四个象限的星座图，以输出第一个复数; （b）相对于第一复数和第二复数执行实数之间和虚数之间的加法/减法运算; 以及（c）响应于所述第一复数，所述第二复数和第三复数，从查找表读取第四复数，所述查找表通过对多个 在实数和虚数之间，以及相对于步骤（b）和第三复数的结果值的实数和虚数之间的相乘结果的加法运算。 因此，可以在IFFT / FFT设计时降低硬件尺寸并提供高速，低功率操作。

公开(公告)号：US07831649B2

公开(公告)日：2010-11-09

申请号：US11576565

申请日：2005-11-02

申请人： Sang In Cho ,  Sang Sung Choi ,  Kwang Roh Park

发明人： Sang In Cho ,  Sang Sung Choi ,  Kwang Roh Park

IPC分类号： G06F17/14

CPC分类号： H04L27/263 ,  H04L27/265

摘要： Provided is a method for transforming data using a look-up table. The method includes the steps of: (a) mapping pre-processed input binary data to a constellation diagram divided into four quadrants to output a first complex number; (b) performing addition/subtraction operations between real numbers and between imaginary numbers with respect to the first complex number and a second complex number; and (c) reading a fourth complex from a look-up table in response to the first complex number, the second complex number and a third complex number, the look-up table outputting the fourth complex by performing a subtraction operation on multiplication results between real numbers and between imaginary numbers and an addition operation on multiplication results between the real numbers and the imaginary numbers with respect to the result value of the step (b) and the third complex number. Accordingly, it is possible to reduce the hardware size at the time of IFFT/FFT design and to provide a high-speed, low-power operation.

摘要翻译： 提供了一种使用查找表来转换数据的方法。 该方法包括以下步骤：（a）将预处理的输入二进制数据映射到分成四个象限的星座图，以输出第一个复数; （b）相对于第一复数和第二复数执行实数之间和虚数之间的加法/减法运算; 以及（c）响应于第一复数，第二复数和第三复数，从查找表读取第四复数，查找表通过对乘法结果执行减法运算来输出第四复数 实数和虚数之间以及相对于步骤（b）和第三复数的结果值的实数和虚数之间的相乘结果的加法运算。 因此，可以在IFFT / FFT设计时降低硬件尺寸并提供高速，低功率操作。

公开(公告)号：US08300676B2

公开(公告)日：2012-10-30

申请号：US12536929

申请日：2009-08-06

申请人： Cheol-Ho Shin ,  Byoung Hak Kim ,  Jong Won Kim ,  Sangsung Choi ,  Kwang Roh Park

发明人： Cheol-Ho Shin ,  Byoung Hak Kim ,  Jong Won Kim ,  Sangsung Choi ,  Kwang Roh Park

IPC分类号： H04B1/00

CPC分类号： H04L27/0006

摘要： A communication apparatus generates a digital detection signal including a plurality of time symbols by digital-converting a detection signal corresponding to a received signal, estimates an average power value of the detection signal by calculating average power of the digital detection signal based on the digital detection signal, and performs UWB communication through a predetermined first channel when a predetermined reference power value is greater than the average power value.

摘要翻译： 通信装置通过对与接收信号相对应的检测信号进行数字转换来生成包括多个时间符号的数字检测信号，通过基于数字检测来计算数字检测信号的平均功率来估计检测信号的平均功率值 信号，并且当预定参考功率值大于平均功率值时，通过预定的第一通道执行UWB通信。

公开(公告)号：US08243624B2

公开(公告)日：2012-08-14

申请号：US12542101

申请日：2009-08-17

申请人： Young Ae Jeon ,  Seong-hee Lee ,  Sangsung Choi ,  Kwang Roh Park ,  Sung-Woo Park

发明人： Young Ae Jeon ,  Seong-hee Lee ,  Sangsung Choi ,  Kwang Roh Park ,  Sung-Woo Park

IPC分类号： H04W24/00 ,  H04W40/02 ,  H04W40/12 ,  H04W40/38

CPC分类号： H04W40/26 ,  H04L45/123 ,  H04L45/42 ,  H04W84/18

摘要： Provided are a routing table generating method, a data transmission method, and a routing route formation method for multi-hop communication in high rate wireless personal networks. In a high rate WPAN environment including a plurality of piconets, a piconet controller (PNC), which performs a topology server function to provide the optimal route, collects link state information from the PNCs or DEVs (devices) belonging to a sub-tree that serves as a root and applies a minimum cost algorithm based on the collected link state information to calculate the optimal route for all pairs of originations and destinations existing within the sub-tree in consideration of QoS. The optimal route information is transmitted to the origination PNC via the destination PNC/DEV. During performing this, the optimal route between the pairs of originations and destinations is set.

摘要翻译： 提供了一种用于高速率无线个人网络中的多跳通信的路由表生成方法，数据传输方法和路由路由形成方法。 在包括多个微微网的高速WPAN环境中，执行拓扑服务器功能以提供最佳路由的微微网控制器（PNC）从属于子树的PNC或DEV（设备）收集链路状态信息，该子系统属于子树， 作为根，并且基于收集的链路状态信息应用最小成本算法，以便考虑到QoS中存在于子树内的所有起始对象和目的地目的地的最优路由。 最佳路由信息通过目的地PNC / DEV传送到始发PNC。 在执行此过程中，设置了起始对象和目标对之间的最佳路由。

公开(公告)号：US20100124252A1

公开(公告)日：2010-05-20

申请号：US12536929

申请日：2009-08-06

申请人： Cheol-Ho Shin ,  Byoung Hak Kim ,  Jong Won Kim ,  Sangsung Choi ,  Kwang Roh Park

发明人： Cheol-Ho Shin ,  Byoung Hak Kim ,  Jong Won Kim ,  Sangsung Choi ,  Kwang Roh Park

IPC分类号： H04B1/69

CPC分类号： H04L27/0006

摘要： A communication apparatus generates a digital detection signal including a plurality of time symbols by digital-converting a detection signal corresponding to a received signal, estimates an average power value of the detection signal by calculating average power of the digital detection signal based on the digital detection signal, and performs UWB communication through a predetermined first channel when a predetermined reference power value is greater than the average power value.

摘要翻译： 通信装置通过对与接收信号相对应的检测信号进行数字转换来生成包括多个时间符号的数字检测信号，通过基于数字检测来计算数字检测信号的平均功率来估计检测信号的平均功率值 信号，并且当预定参考功率值大于平均功率值时，通过预定的第一通道执行UWB通信。

公开(公告)号：US20090154410A1

公开(公告)日：2009-06-18

申请号：US12182742

申请日：2008-07-30

申请人： Young Ae JEON ,  Sangjae Lee ,  Sangsung Choi ,  Kwang Roh Park

发明人： Young Ae JEON ,  Sangjae Lee ,  Sangsung Choi ,  Kwang Roh Park

IPC分类号： H04W92/00 ,  H04W84/00 ,  H04J3/00 ,  H04J3/16

CPC分类号： H04L1/0015 ,  H04L1/0002 ,  H04L1/0006 ,  H04L1/0007 ,  H04L1/1607 ,  H04L1/1867 ,  H04W72/044 ,  H04W84/10

摘要： A method for allocating distributed Medium Access Control (MAC) resources in a Wireless Personal Area Network (WPAN) includes calculating an acknowledgement overhead; calculating a Medium Access Slot (MAS) overhead depending on a payload length of a frame; calculating a transfer rate; calculating a number of frame bits to be transmitted; and calculating a first number of MASs. Thereby, the method optimized a final number of MASs required per superframe. Further, a distributed MAC resource allocation apparatus includes a MAC client for determining a resource allocation scheme and an amount of resources, and for sending a request to a MAC resource management unit; a MAC physical layer for providing a received power level or the like to the MAC resource management unit; and the MAC resource management unit for determining a payload length or the like and for allocating wireless resources to devices connected to the WPAN.

摘要翻译： 一种用于在无线个人区域网络（WPAN）中分配分布式媒体接入控制（MAC）资源的方法包括计算确认开销; 根据帧的有效载荷长度计算媒体接入时隙（MAS）开销; 计算转移率; 计算要发送的帧比特数; 以及计算第一数量的MAS。 因此，该方法优化了每个超帧所需的MAS的最终数量。 此外，分布式MAC资源分配装置包括用于确定资源分配方案和资源量的MAC客户端，并且向MAC资源管理单元发送请求; MAC物理层，用于向MAC资源管理单元提供接收的功率等级; 以及用于确定有效载荷长度等的MAC资源管理单元，以及用于向连接到WPAN的设备分配无线资源。

公开(公告)号：US07436915B2

公开(公告)日：2008-10-14

申请号：US11137468

申请日：2005-05-26

申请人： Kyu Min Kang ,  Bub Joo Kang ,  Sangsung Choi ,  Kwang Roh Park

发明人： Kyu Min Kang ,  Bub Joo Kang ,  Sangsung Choi ,  Kwang Roh Park

IPC分类号： H04B1/10

CPC分类号： H04B1/7176 ,  H04B1/7174 ,  H04B2201/70707

摘要： An FIR filter of a DS-CDMA UWB modem transmitter and a control method thereof are disclosed. The FIR filter includes an LUT control device for outputting a resultant value of “0” to all adders if data values corresponding to upper three chips H2, M2 and L2 and lower three chips H, M and L are “000000”, and discriminating which group between a first group and a second group the upper/lower data values belong to if the upper/lower data values are not“000000”. The LUT control device provides upper or lower LUT values to the adders using the upper or lower LUT values as they are, or converts the upper or lower LUT values into 2's complements and provides the converted values to the adders according to the discriminated first or second group.

摘要翻译： 公开了DS-CDMA UWB调制解调发射机的FIR滤波器及其控制方法。 如果对应于上三个码片H 2，M 2和L 2以及较低的三个码片H，M和L的数据值为“000000”，则FIR滤波器包括LUT控制装置，用于向所有加法器输出结果值“0” 并且如果所述上/下数据值不是“000000”，则鉴别所述上/下数据值属于第一组和第二组之间的组。 LUT控制装置使用上下LUT值向加法器提供上或下LUT值，或者将上或下LUT值转换为2的补码，并根据所识别的第一或第二值向加法器提供转换的值 组。

公开(公告)号：US08134948B2

公开(公告)日：2012-03-13

申请号：US12182742

申请日：2008-07-30

申请人： Young Ae Jeon ,  Sangjae Lee ,  Sangsung Choi ,  Kwang Roh Park

发明人： Young Ae Jeon ,  Sangjae Lee ,  Sangsung Choi ,  Kwang Roh Park

IPC分类号： H04B7/212

CPC分类号： H04L1/0015 ,  H04L1/0002 ,  H04L1/0006 ,  H04L1/0007 ,  H04L1/1607 ,  H04L1/1867 ,  H04W72/044 ,  H04W84/10

摘要： A method for allocating distributed Medium Access Control (MAC) resources in a Wireless Personal Area Network (WPAN) includes calculating an acknowledgement overhead; calculating a Medium Access Slot (MAS) overhead depending on a payload length of a frame; calculating a transfer rate; calculating a number of frame bits to be transmitted; and calculating a first number of MASs. Thereby, the method optimized a final number of MASs required per superframe. Further, a distributed MAC resource allocation apparatus includes a MAC client for determining a resource allocation scheme and an amount of resources, and for sending a request to a MAC resource management unit; a MAC physical layer for providing a received power level or the like to the MAC resource management unit; and the MAC resource management unit for determining a payload length or the like and for allocating wireless resources to devices connected to the WPAN.

摘要翻译： 一种用于在无线个人区域网络（WPAN）中分配分布式媒体接入控制（MAC）资源的方法包括计算确认开销; 根据帧的有效载荷长度计算媒体接入时隙（MAS）开销; 计算转移率; 计算要发送的帧比特数; 以及计算第一数量的MAS。 因此，该方法优化了每个超帧所需的MAS的最终数量。 此外，分布式MAC资源分配装置包括用于确定资源分配方案和资源量的MAC客户端，并且向MAC资源管理单元发送请求; MAC物理层，用于向MAC资源管理单元提供接收的功率等级; 以及用于确定有效载荷长度等的MAC资源管理单元，以及用于向连接到WPAN的设备分配无线资源。