公开(公告)号：US07912891B2

公开(公告)日：2011-03-22

申请号：US11636242

申请日：2006-12-08

申请人： Sang-In Cho ,  Cheol-Ho Shin ,  Kyu-Min Kang ,  Sung-Woo Choi ,  Sang-Sung Choi ,  Jin-Gyun Chung ,  Yong-Eun Kim

发明人： Sang-In Cho ,  Cheol-Ho Shin ,  Kyu-Min Kang ,  Sung-Woo Choi ,  Sang-Sung Choi ,  Jin-Gyun Chung ,  Yong-Eun Kim

IPC分类号： G06F7/52

CPC分类号： G06F7/533

摘要： Provided are a high speed and low power fixed-point multiplier and method thereof. The multiplier includes: a partial product calculation unit for dividing input data into a plurality of bit groups, each bit group having a predetermined number of bits, generating partial products by independently multiplying a fixed coefficient for each bit group, and summing partial products included in a corresponding bit group, to thereby generate a summed partial products; and an adding unit for adding the summed partial products of each bit group generated from the partial product calculation unit.

摘要翻译： 提供了一种高速和低功率定点倍增器及其方法。 乘法器包括：部分乘积计算单元，用于将输入数据分成多个比特组，每个比特组具有预定数量的比特，通过独立地乘以每个比特组的固定系数产生部分乘积，并将包括在 相应的位组，从而产生相加的部分积; 以及添加单元，用于添加从所述部分乘积计算单元生成的每个位组的相加的部分乘积。

公开(公告)号：US20070180015A1

公开(公告)日：2007-08-02

申请号：US11636242

申请日：2006-12-08

申请人： Sang-In Cho ,  Cheol-Ho Shin ,  Kyu-Min Kang ,  Sung-Woo Choi ,  Sang-Sung Choi ,  Jin-Gyun Chung ,  Yong-Eun Kim

发明人： Sang-In Cho ,  Cheol-Ho Shin ,  Kyu-Min Kang ,  Sung-Woo Choi ,  Sang-Sung Choi ,  Jin-Gyun Chung ,  Yong-Eun Kim

IPC分类号： G06F7/52

CPC分类号： G06F7/533

摘要： Provided are a high speed and low power fixed-point multiplier and method thereof. The multiplier includes: a partial product calculation unit for dividing input data into a plurality of bit groups, each bit group having a predetermined number of bits, generating partial products by independently multiplying a fixed coefficient for each bit group, and summing partial products included in a corresponding bit group, to thereby generate a summed partial products; and an adding unit for adding the summed partial products of each bit group generated from the partial product calculation unit.

摘要翻译： 提供了一种高速和低功率定点倍增器及其方法。 乘法器包括：部分乘积计算单元，用于将输入数据分成多个比特组，每个比特组具有预定数量的比特，通过独立地乘以每个比特组的固定系数产生部分乘积，并将包括在 相应的位组，从而产生相加的部分积; 以及添加单元，用于添加从所述部分乘积计算单元生成的每个位组的相加的部分乘积。

公开(公告)号：US07924953B2

公开(公告)日：2011-04-12

申请号：US11948179

申请日：2007-11-30

申请人： Sung-Woo Choi ,  Cheol-Ho Shin ,  Kyu-Min Kang ,  Sang-Sung Choi

发明人： Sung-Woo Choi ,  Cheol-Ho Shin ,  Kyu-Min Kang ,  Sang-Sung Choi

IPC分类号： H04L27/06 ,  H04L7/00 ,  H04B1/69

CPC分类号： H04B1/713 ,  H04B1/709 ,  H04L5/0007 ,  H04L5/0037 ,  H04L27/2655 ,  H04L27/2675

摘要： Provided is an apparatus and method for detecting a time-frequency code in an MB-OFDM UWB system. The apparatus includes a controller for providing a band selection signal to the RF receiver and outputting a preamble selection signal at regular symbol periods to calculate a cross correlation value for a predetermined time period more than a beacon frame interval when a time-frequency code search start signal is received; and a cross correlator for storing information on preamble patterns, selecting a preamble stored depending on the preamble selection signal, and calculating a cross correlation value for a digital signal transferred through the RF receiver, wherein the controller determines a time-frequency code using a preamble where a peak occurs as a time-frequency code that is currently in use when a peak signal is inputted based on the calculated cross correlation value, and transmits the determined time-frequency code to the MAC receiver.

摘要翻译： 提供了一种用于检测MB-OFDM UWB系统中的时间 - 频率代码的装置和方法。 该装置包括控制器，用于向RF接收机提供频带选择信号，并以规则符号周期输出前导码选择信号，以便在时间频率代码搜索开始时比信标帧间隔多一个预定时间段内的互相关值 信号被接收; 以及交叉相关器，用于存储关于前导码模式的信息，选择根据前导选择信号存储的前导码，以及计算通过RF接收机传送的数字信号的互相关值，其中控制器使用前导码确定时间频率码 其中当基于所计算的互相关值输入峰值信号时作为当前正在使用的时间频率代码发生峰值，并将所确定的时间频率代码发送到MAC接收机。

公开(公告)号：US07945227B2

公开(公告)日：2011-05-17

申请号：US11951392

申请日：2007-12-06

申请人： Kyu-Min Kang ,  Sang-In Cho ,  Sang-Sung Choi

发明人： Kyu-Min Kang ,  Sang-In Cho ,  Sang-Sung Choi

IPC分类号： H04B1/06 ,  H04K3/00

CPC分类号： H03G3/3052

摘要： Provided is an apparatus and method for controlling a voltage gain in an ultra wideband receiving apparatus. The apparatus includes a register for storing an Automatic Gain Control (AGC) value detected in a section where an AGC operation control signal is “ON”; and a voltage gain controller for generating a voltage gain control value by reading the AGC stored in the register during a section where a reception enable signal is “ON”, and transferring the generated voltage gain control value to a voltage gain amplifier.

摘要翻译： 提供一种用于控制超宽带接收装置中的电压增益的装置和方法。 该装置包括用于存储在AGC操作控制信号为“ON”的部分中检测到的自动增益控制（AGC）值的寄存器; 以及电压增益控制器，用于通过在接收使能信号为“接通”的部分期间读取存储在寄存器中的AGC，并将所生成的电压增益控制值传送到电压增益放大器来产生电压增益控制值。

公开(公告)号：US08000397B2

公开(公告)日：2011-08-16

申请号：US12110708

申请日：2008-04-28

申请人： Sang-In Cho ,  Kyu-Min Kang ,  Sang-Sung Choi

发明人： Sang-In Cho ,  Kyu-Min Kang ,  Sang-Sung Choi

IPC分类号： H04L27/28

CPC分类号： H04L27/2656 ,  H04B2001/71563 ,  H04L27/2657 ,  H04L27/2662 ,  H04L27/2675

摘要： Provided is a method and apparatus for acquiring OFDM synchronization even when it fails to detect a plurality of symbols at an initial stage. In the method, a frequency is adjusted to a first frequency band and a cross correlation value between a received preamble symbol and a preset preamble symbol is calculated. When the calculated cross correlation value is larger than a predetermined reference value and is first detected, frequency hopping is performed to receive subsequent symbols and cross correlation values to the subsequent symbols are reexamined. When the reexamined cross correlation value larger than the predetermined reference value is detected, timing synchronization, frequency offset estimation, and frame detection are performed.

摘要翻译： 提供了即使在初始阶段不能检测到多个符号的情况下也可以获取OFDM同步的方法和装置。 在该方法中，将频率调整为第一频带，并且计算所接收的前导码符号和预设前置码符号之间的互相关值。 当所计算的互相关值大于预定参考值并且被首先检测时，执行跳频以接收后续符号，并重新检查对后续符号的互相关值。 当检测到重新检查的大于预定参考值的互相关值时，执行定时同步，频率偏移估计和帧检测。

公开(公告)号：US20090154529A1

公开(公告)日：2009-06-18

申请号：US12110708

申请日：2008-04-28

申请人： Sang-In Cho ,  Kyu-Min Kang ,  Sang-Sung Choi

发明人： Sang-In Cho ,  Kyu-Min Kang ,  Sang-Sung Choi

IPC分类号： H04B1/713

CPC分类号： H04L27/2656 ,  H04B2001/71563 ,  H04L27/2657 ,  H04L27/2662 ,  H04L27/2675

摘要： Provided is a method and apparatus for acquiring OFDM synchronization even when it fails to detect a plurality of symbols at an initial stage. In the method, a frequency is adjusted to a first frequency band and a cross correlation value between a received preamble symbol and a preset preamble symbol is calculated. When the calculated cross correlation value is larger than a predetermined reference value and is first detected, frequency hopping is performed to receive subsequent symbols and cross correlation values to the subsequent symbols are reexamined. When the reexamined cross correlation value larger than the predetermined reference value is detected, timing synchronization, frequency offset estimation, and frame detection are performed.

摘要翻译： 提供了即使在初始阶段不能检测到多个符号的情况下也可以获取OFDM同步的方法和装置。 在该方法中，将频率调整为第一频带，并且计算所接收的前导码符号和预设前置码符号之间的互相关值。 当所计算的互相关值大于预定参考值并且被首先检测时，执行跳频以接收后续符号，并重新检查对后续符号的互相关值。 当检测到重新检查的大于预定参考值的互相关值时，执行定时同步，频率偏移估计和帧检测。

公开(公告)号：US07664131B2

公开(公告)日：2010-02-16

申请号：US11511051

申请日：2006-08-28

申请人： Young-Ae Chun ,  Ji-Eun Kim ,  Sang-Jae Lee ,  Sang-Sung Choi ,  Kwang-Roh Park ,  Byung-Joo Lee ,  Seung-Hyong Rhee

发明人： Young-Ae Chun ,  Ji-Eun Kim ,  Sang-Jae Lee ,  Sang-Sung Choi ,  Kwang-Roh Park ,  Byung-Joo Lee ,  Seung-Hyong Rhee

IPC分类号： H04B7/212

CPC分类号： H04W72/04 ,  H04W28/26 ,  H04W48/12 ,  H04W74/08 ,  H04W84/10

摘要： Provided is a channel resource assignment method for fair channel resource reservation in a mesh WPAN, in which the amount of channel resources is fairly reserved when devices share the channel resources. The channel resource assignment method in a mesh Wireless Personal Area Network (WPAN) includes the steps of: (a) transmitting beacons of all devices and adding an amount of channel resource to be reserved to the beacons so as to assign the channel resource for fair channel resource reservation between corresponding devices and adjacent devices when a mesh network is configured; (b) accumulating the amount of the channel resources reserved by all the adjacent devices except the corresponding device; and (c) determining the amount of the channel resources to be reserved.

摘要翻译： 提供了一种用于网格WPAN中的公平信道资源预留的信道资源分配方法，其中当设备共享信道资源时，信道资源量被相当保留。 网状无线个人区域网络（WPAN）中的信道资源分配方法包括以下步骤：（a）发送所有设备的信标，并向信标添加一定量的信道资源以便为信标分配信道资源 当配置网状网络时，相应设备和相邻设备之间的信道资源预留; （b）累积除相应设备之外的所有相邻设备预留的信道资源量; 和（c）确定要保留的信道资源的数量。

公开(公告)号：US20070036105A1

公开(公告)日：2007-02-15

申请号：US11509192

申请日：2006-08-23

申请人： Young-Ae Chun ,  Ji-Eun Kim ,  Sang-Jae Lee ,  Sang-Sung Choi ,  Kwang-Roh Park

发明人： Young-Ae Chun ,  Ji-Eun Kim ,  Sang-Jae Lee ,  Sang-Sung Choi ,  Kwang-Roh Park

IPC分类号： H04Q7/00 ,  H04J3/06 ,  H04L12/56

CPC分类号： H04W16/14 ,  H04W48/08 ,  H04W48/16 ,  H04W52/0216 ,  H04W52/0219 ,  H04W84/10 ,  H04W84/18 ,  H04W92/02 ,  Y02D70/144

摘要： Provided is an apparatus and method for providing inter-piconet data communication in a wireless personal area network. The apparatus includes a piconet association unit, a superframe synchronization unit, a superframe synchronization unit, a DSPS (device synchronized power save) set creation unit, a piconet information announcement unit, a transfer data storage unit, and a data transfer unit. The piconet association unit confirms that a plurality of piconets are located on different channels, and performs a piconet association process. The superframe synchronization unit performs superframe synchronization between piconets. The DSPS set creation unit creates a DSPS set or joining an existing DSPS set. The piconet information announcement unit provides a device with information about another data-transferable piconet and devices belonging to the piconet. The transfer data storage unit receives and stores data requested to be transferred within a superframe. The data transfer unit transmits the stored data to the destination piconet.

摘要翻译： 提供了一种用于在无线个人区域网络中提供微网间数据通信的装置和方法。 该装置包括微微网关联单元，超帧同步单元，超帧同步单元，DSPS（设备同步省电）组创建单元，微微网信息通知单元，传送数据存储单元和数据传送单元。 微微网关联单元确认多个微微网位于不同的信道上，并执行微微网关联处理。 超帧同步单元在微微网之间执行超帧同步。 DSPS集创建单元创建DSPS集合或加入现有的DSPS集合。 微微网信息通知单元向设备提供关于另一数据可传输微微网和属于微微网的设备的信息。 传送数据存储单元接收并存储在超帧内请求传送的数据。 数据传送单元将存储的数据发送到目的地微微网。

公开(公告)号：US20070133590A1

公开(公告)日：2007-06-14

申请号：US11511051

申请日：2006-08-28

申请人： Young-Ae Chun ,  Ji-Eun Kim ,  Sang-Jae Lee ,  Sang-Sung Choi ,  Kwang-Roh Park ,  Byung-Joo Lee ,  Seung-Hyong Rhee

发明人： Young-Ae Chun ,  Ji-Eun Kim ,  Sang-Jae Lee ,  Sang-Sung Choi ,  Kwang-Roh Park ,  Byung-Joo Lee ,  Seung-Hyong Rhee

IPC分类号： H04Q7/00 ,  H04Q7/24 ,  H04Q7/20 ,  H04B7/212

CPC分类号： H04W72/04 ,  H04W28/26 ,  H04W48/12 ,  H04W74/08 ,  H04W84/10

摘要： Provided is a channel resource assignment method for fair channel resource reservation in a mesh WPAN, in which the amount of channel resources is fairly reserved when devices share the channel resources. The channel resource assignment method in a mesh Wireless Personal Area Network (WPAN) includes the steps of: (a) transmitting beacons of all devices and adding an amount of channel resource to be reserved to the beacons so as to assign the channel resource for fair channel resource reservation between corresponding devices and adjacent devices when a mesh network is configured; (b) accumulating the amount of the channel resources reserved by all the adjacent devices except the corresponding device; and (c) determining the amount of the channel resources to be reserved.

摘要翻译： 提供了一种用于网格WPAN中的公平信道资源预留的信道资源分配方法，其中当设备共享信道资源时，信道资源量被相当保留。 网状无线个人区域网络（WPAN）中的信道资源分配方法包括以下步骤：（a）发送所有设备的信标，并向信标添加一定量的信道资源以便为信标分配信道资源 当配置网状网络时，相应设备和相邻设备之间的信道资源预留; （b）累积除相应设备之外的所有相邻设备预留的信道资源量; 和（c）确定要保留的信道资源的数量。

公开(公告)号：US08441916B2

公开(公告)日：2013-05-14

申请号：US12827252

申请日：2010-06-30

申请人： Cheol-Ho Shin ,  Sang-Sung Choi ,  Byoung-Hak Kim

发明人： Cheol-Ho Shin ,  Sang-Sung Choi ,  Byoung-Hak Kim

IPC分类号： H04J11/00

CPC分类号： H04L27/2607 ,  H04L25/0204 ,  H04L27/2613 ,  H04L27/2657 ,  H04L27/2662

摘要： There are disclosed a method of communicating for a smart utility network using a TV white space and an apparatus for the same. The method of communicating for a smart utility network using a TV white space according to the present invention includes: generating a time domain sequence repeated every predetermined number of samples; generating an OFDM symbol having a cyclic prefix length corresponding to an FFT size divided by a natural number of 2 or more and including samples of a number corresponding to the sum of the FFT size and the cyclic prefix length; and generating an SUN packet to be transmitted through a TV channel band selected in the TV white space by using the time domain sequence and the OFDM symbol. Accordingly, it is possible to satisfy all requirements required by the IEEE 802.15.4g SUN standardization group.

摘要翻译： 公开了使用TV空白的智能公用事业网络的通信方法及其设备。 根据本发明的使用TV空白的智能公用网络的通信方法包括：产生每预定数量样本重复的时域序列; 生成具有对应于FFT大小除以2以上的自然数的循环前缀长度的OFDM符号，并且包括与FFT大小和循环前缀长度之和相对应的数字的采样; 以及通过使用时域序列和OFDM符号来生成通过TV空间中选择的TV频道频带发送的SUN分组。 因此，可以满足IEEE 802.15.4g SUN标准化组所要求的所有要求。