专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2008022275A2 PACKET DETECTION, SYMBOL TIMING, CHANNEL LENGTH ESTIMATION AND CHANNEL RESPONSE ESTIMATION FOR WIRELESS SYSTEMS 审中-公开
标题翻译：无线系统的分组检测，符号时序，通道长度估计和通道响应估计
公开(公告)号：WO2008022275A2
公开(公告)日：2008-02-21
申请号：PCT/US2007076129
申请日：2007-08-16
申请人： TEXAS INSTRUMENTS INC , SINGH MANONEET , ROH JUNE CHUL , BALAKRISHNAN JAIGANESH , BATRA ANUJ
发明人： SINGH MANONEET , ROH JUNE CHUL , BALAKRISHNAN JAIGANESH , BATRA ANUJ
IPC分类号： H04J1/04
CPC分类号： H04L25/0216 , H04B17/327 , H04L25/022 , H04L25/0228 , H04L27/2656 , H04L27/2662 , H04L27/2675
摘要： A method. The method includes producing a first signal match indication based on at least one match indication indicative of a match between at least one signal received in at least one band and a reference signal (702). The method also includes producing a first signal multipath combined signal based upon the first signal match indication (704), and detecting a first peak in the first multipath combined signal (706).
摘要翻译：一个方法。该方法包括基于指示在至少一个频带中接收的至少一个信号与参考信号（702）之间的匹配的至少一个匹配指示产生第一信号匹配指示。该方法还包括基于第一信号匹配指示（704）产生第一信号多路复用信号，以及检测第一多路复合信号（706）中的第一峰值。

2. 发明申请

WO2005067670A3 SYSTEM AND METHOD FOR CHANNELIZATION AND DATA MULTIPLEXING IN A WIRELESS COMMUNICATION NETWORK 审中-公开
标题翻译：用于无线通信网络中的通道化和数据多路复用的系统和方法
公开(公告)号：WO2005067670A3
公开(公告)日：2008-11-13
申请号：PCT/US2005000655
申请日：2005-01-10
申请人： TEXAS INSTRUMENTS INC , BATRA ANUJ , BALAKRISHNAN JAIGANESH , DABAK ANAND , BELK NATHAN , GRIFFITH DANIELLE
发明人： BATRA ANUJ , BALAKRISHNAN JAIGANESH , DABAK ANAND , BELK NATHAN , GRIFFITH DANIELLE
IPC分类号： H04B7/204 , H04B1/69 , H04B7/208 , H04J11/00 , H04J13/00
CPC分类号： H04B1/71632 , H04J13/0022
摘要： A system and method for channelization and data multiplexing in ultrawideband (UWB) wireless communication system is described. The spectrum allocated for UWB in a multi-band OFDM (orthogonal frequency division multiplex) system is subdivided into various bands 102-128. A set of time frequency codes (TFC's) is defined, wherein each code specifies one of a plurality of unique band versus time sequences for a particular band group 130, 132, 534, 536, 538, for sequential data symbols of a given piconet. The separation of data words from multiple devices or multiple simultaneously operating piconets (SOP's) is provided by a combination of FDMA and TFC's. The combination of FDMA and TFC's provides a simplified interface between the MAC and PHY.
摘要翻译：描述了超宽带（UWB）无线通信系统中的信道化和数据复用的系统和方法。在多频带OFDM（正交频分复用）系统中为UWB分配的频谱被细分为各种频带102-128。定义了一组时间频率代码（TFC），其中每个代码指定给定微微网的顺序数据符号的特定频带组130,132,534,536,538的多个唯一频带相对于时间序列中的一个。数据字从多个设备或多个同时操作的微微网（SOP）的分离由FDMA和TFC的组合提供。 FDMA和TFC的组合提供了MAC和PHY之间的简化接口。

3. 发明申请

WO2005104393A3 ADDITIONAL HIERACHICAL PREAMBLE FOR SUPPORT OF FDMA CHANNEL IN A MULTI-BAND OFDM SYSTEM 审中-公开
标题翻译：用于在多频带OFDM系统中支持FDMA通道的附加高级前缀
公开(公告)号：WO2005104393A3
公开(公告)日：2007-10-25
申请号：PCT/US2005012887
申请日：2005-04-15
申请人： TEXAS INSTRUMENTS INC , BATRA ANUJ , BALAKRISHNAN JAIGANESH
发明人： BATRA ANUJ , BALAKRISHNAN JAIGANESH
IPC分类号： H04B1/69 , H04B1/707 , H04J11/00 , H04L5/02 , H04L25/02 , H04L27/26
CPC分类号： H04L27/2613 , H04B1/709 , H04J13/107 , H04L5/0007 , H04L5/0016 , H04L5/0032 , H04L5/0048 , H04L5/0062 , H04L5/0092 , H04L25/0226 , H04L25/03828
摘要： A wireless device (10, 12) that distinguishes between multiple piconets is provided. The wireless device (10, 12) includes a preamble component operable to provide a preamble for a wireless fixed frequency interleaving transmission. The wireless device (10, 12) also includes a correlator component operable to distinguish a wireless transmission based on the preamble. The preamble is based on a 128-length sequence (120, 136, 144), formed using a 16-length sequence and an 8-length sequence. The 16-length sequence is selected from the group consisting of a first 16-length sequence (110, a second 16-length sequence (132), and a third 16-length sequence 140). The 8-length sequence is selected from the group consisting of a first 8-length sequence (112), a second 8-length sequence (134), and a third 8-length sequence (144).
摘要翻译：提供了区分多个微微网的无线设备（10,12）。无线设备（10,12）包括可用于为无线固定频率交织传输提供前导码的前同步码组件。无线设备（10,12）还包括可用于基于前导码区分无线传输的相关器组件。前导码基于使用16长度序列和8长度序列形成的128长度序列（120,136,144）。 16长度序列选自由第一16长度序列（110，第二16长度序列（132）和第三16长度序列140）组成的组。 8长度序列选自第一个8长度序列（112），第二个8长度序列（134）和第三个8长度序列（144）。

4. 发明申请

WO2006007599A3 TIME-DOMAIN WINDOWING OF MULTI-BAND OFDM SYSTEM TO ENABLE SPECTRAL SCULPTING 审中-公开
标题翻译：多频带OFDM系统的时域窗口启用频谱扫描
公开(公告)号：WO2006007599A3
公开(公告)日：2006-04-27
申请号：PCT/US2005023840
申请日：2005-07-01
申请人： TEXAS INSTRUMENTS INC , BALAKRISHNAN JAIGANESH , BATRA ANUJ , YAMAGUCHI HIROHISA
发明人： BALAKRISHNAN JAIGANESH , BATRA ANUJ , YAMAGUCHI HIROHISA
IPC分类号： H04L27/36
CPC分类号： H04L27/2613 , H04B1/719 , H04L25/03828 , H04L27/2626
摘要： A method of wirelessly communicating is disclosed. The method comprises generating a plurality of tones for a wideband orthogonal frequency division multiplex symbol (310), the tones including a plurality of contiguous zero-valued tones, inverse Fourier transforming the tones to a plurality of time-domain samples (312), copying a plurality of the time-domain samples as a portion of a cyclic dock (314), the cyclic bl>Ak (314) contiguous with the time-domain samples (312), time-domain window filtering the time-domain samples (312) and the cyclic bl>Ak (314) to form a portion of the wideband orthogonal frequency division multiplex symbol (310), wherein the time-domain window filter is a function $(k) having the property that $(k) + $(k +N
摘要翻译：公开了一种无线通信的方法。该方法包括生成用于宽带正交频分复用符号（310）的多个音调，所述音调包括多个连续的零值音调，将所述音调逆傅里叶变换为多个时域采样（312），复制作为循环码头的一部分的多个时域样本（314），与时域样本（312）邻接的循环bl> A k（314），时域样本（312）的时域窗滤波）和循环bl> A k（314）以形成宽带正交频分复用符号（310）的一部分，其中时域窗滤波器是具有以下性质的函数$（k）：$（k）+ $ （k + N

5. 发明申请

WO2006076648A3 COMMUNICATION SYSTEM OVERLAP-AND-ADD OPERATION 审中-公开
标题翻译：通信系统覆盖和添加操作
公开(公告)号：WO2006076648A3
公开(公告)日：2007-02-01
申请号：PCT/US2006001350
申请日：2006-01-13
申请人： TEXAS INSTRUMENTS INC , BALAKRISHNAN JAIGANESH , LINGAM SRINIVAS , BATRA ANUJ
发明人： BALAKRISHNAN JAIGANESH , LINGAM SRINIVAS , BATRA ANUJ
IPC分类号： H04L27/04
CPC分类号： H04L27/265 , H04L25/0202 , H04L27/2605
摘要： A communication system has a first device HOA that transmits an information symbol with a zero-padded suffix (ZPS) and a second device HOB that receives the information symbol with the zero-padded suffix. The second device HOB performs a Fourier transform on at least one sample of the information symbol before a ZPS sample is overlapped-and-added to another sample of the information symbol.
摘要翻译：通信系统具有发送具有零填充后缀（ZPS）的信息符号的第一设备HOA和以零填充后缀接收信息符号的第二设备HOB。第二装置HOB在将ZPS样本重叠并添加到信息符号的另一个样本之前对信息符号的至少一个采样执行傅里叶变换。

6. 发明申请

WO2005109664A3 FREQUENCY DIVISION MULTIPLE ACCESS WIRELESS COMMUNICATION WITH HIERARCHICAL PREAMBLE 审中-公开
标题翻译：频分多址无线通信与分层前缀
公开(公告)号：WO2005109664A3
公开(公告)日：2006-11-16
申请号：PCT/US2005015863
申请日：2005-05-05
申请人： TEXAS INSTRUMENTS INC , BATRA ANUJ , BALAKRISHNAN JAIGANESH
发明人： BATRA ANUJ , BALAKRISHNAN JAIGANESH
IPC分类号： H04B7/216 , H04B1/707 , H04J1/00 , H04J11/00
CPC分类号： H04B1/7075 , H04B1/709
摘要： A wireless device is provided that distinguishes between multiple piconets. The wireless device includes a preamble a component (160, 162, 164, 166) and a correlator (150) component. The preamble component (160, 162, 164, 166) provides a preamble for a wireless fixed frequency interleaving transmission, and the correlator component (150) distinguishes a wireless transmission based on the preamble. A circuit (180) is provided for a wireless receiver to despread a hierarchical sequence made by spreading an M-length sequence with an N-length sequence. The circuit (180) includes a first and second despreaders (185, 190). The first despreader (185) is coupled to a signal input to despread a received signal. The signal is a fixed frequency interleaved transmission. The second despreader (190) is coupled to an output of the first despreader (185). The second despreader (190) despreads the output of the first despreader (185) with a second sequence.
摘要翻译：提供了区分多个微微网的无线设备。无线设备包括前导码，组件（160,162,164,166）和相关器（150）组件。前导码部分（160,162,164,166）提供无线固定频率交织传输的前同步码，并且相关器组件（150）基于前导码区分无线传输。提供了一种用于无线接收机的电路（180），用于对通过扩展具有N长度序列的M长度序列进行扩展而得到的分级序列进行解扩。电路（180）包括第一和第二解扩器（185,190）。第一解扩器（185）耦合到信号输入端以对接收到的信号进行解扩。信号是固定频率交织传输。第二解扩器（190）耦合到第一解扩器（185）的输出端。第二解扩器（190）用第二序列解扩第一解扩器（185）的输出。

7. 发明申请

WO2006081559A2 METHODS AND SYSTEMS FOR DETECTING AND MITIGATING INTERFERENCE FOR A WIRELESS DEVICE 审中-公开
标题翻译：用于检测和减轻无线设备干扰的方法和系统
公开(公告)号：WO2006081559A2
公开(公告)日：2006-08-03
申请号：PCT/US2006003233
申请日：2006-01-30
申请人： TEXAS INSTRUMENTS INC , BATRA ANUJ , BALAKRISHNAN JAIGANESH , LINGAM SRINIVAS
发明人： BATRA ANUJ , BALAKRISHNAN JAIGANESH , LINGAM SRINIVAS
IPC分类号： H04B1/69
CPC分类号： H04L27/2647 , H04B1/719 , H04W52/243
摘要： A method for mitigating interference between an Ultra Wideband (UWB) device and a non-UWB device is provided. The method includes, dynamically determining if a frequency channel associated with the non-UWB device is being used. If the frequency channel is being used, the method adjusts a UWB frequency band used for UWB signal transmission. A receiver (312 A, B) receives Ultra Wideband (UWB) frequency band wireless signals from a transmitter (312 A5B). Interference detection logic (318 A, B) detects interfering non-UWB signals transmitted within the Ultra Wideband (UWB) frequency band and asserts an interference detected signal to interference mitigation logic (32OA5B), which configures the transmitter to miti ate the interference.
摘要翻译：提供了一种用于减轻超宽带（UWB）设备和非UWB设备之间的干扰的方法。该方法包括：动态地确定是否正在使用与非UWB设备相关联的频道。如果正在使用频道，则该方法调整用于UWB信号传输的UWB频带。接收机（312A，B）从发射机（312ABB）接收超宽带（UWB）频带无线信号。干扰检测逻辑（318A，B）检测在超宽带（UWB）频带内传输的干扰非UWB信号，并且将干扰检测信号置于干扰减轻逻辑（32A5B），其将发射机配置为消除干扰。

8. 发明申请

WO2006025996A3 CONCATENATED CODING OF THE MULTI-BAND ORTHOGONAL FREQUENCY DIVISION MODULATION SYSTEM 审中-公开
标题翻译：多频带正交频分调制系统的定义编码
公开(公告)号：WO2006025996A3
公开(公告)日：2006-07-13
申请号：PCT/US2005026876
申请日：2005-07-28
申请人： TEXAS INSTRUMENTS INC , BALAKRISHNAN JAIGANESH , LINGAM SRINIVAS , GOEL MANISH , BATRA ANUJ
发明人： BALAKRISHNAN JAIGANESH , LINGAM SRINIVAS , GOEL MANISH , BATRA ANUJ
IPC分类号： H04L23/02
CPC分类号： H04K1/00 , H03M13/1102 , H03M13/15 , H03M13/23 , H03M13/2936 , H03M13/2957 , H03M13/618 , H04L1/0041 , H04L1/0057 , H04L1/0059 , H04L1/0065 , H04L1/0072 , H04L1/04 , H04L5/023 , H04L27/2602 , H04L27/2608 , H04L2001/0098
摘要： The present disclosure is directed to a transmitter that includes a first block encoder (450) operable to block encode at least a first portion of a multi-band orthogonal frequency division modulation signal. The first block encoder (450) also includes a convolution encoder (304) operable to convolution encode the output of the first block encoder (450). A method of communicating is also disclosed. The method comprises block encoding a first portion of a message to produce a first outer code word. The method includes convolution encoding the first outer code word to produce a first inner code word. The method also includes transmitting the first inner code word as part of a multiband orthogonal frequency division modulation signal.
摘要翻译：本公开涉及一种发射机，其包括第一块编码器（450），其可操作以阻止对多频带正交频分调制信号的至少第一部分进行编码。第一块编码器（450）还包括可操作以对第一块编码器（450）的输出进行卷积编码的卷积编码器（304）。还公开了一种通信方法。该方法包括对消息的第一部分进行块编码以产生第一外码字。该方法包括卷积编码第一外码字以产生第一内码字。该方法还包括将第一内码字作为多频带正交频分调制信号的一部分进行发送。

9. 发明申请

WO2005101694A2 VERSATILE SYSTEM FOR DUAL CARRIER TRANSFORMATION IN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING 审中-公开
标题翻译：正交频分复用中双载波变换的多体系统
公开(公告)号：WO2005101694A2
公开(公告)日：2005-10-27
申请号：PCT/US2005011589
申请日：2005-04-06
申请人： TEXAS INSTRUMENTS INC , HOSUR SRINATH , BALAKRISHNAN JAIGANESH , BATRA ANUJ
发明人： HOSUR SRINATH , BALAKRISHNAN JAIGANESH , BATRA ANUJ
IPC分类号： H04B1/69 , H04B7/216 , H04J11/00 , H04L27/26
CPC分类号： H04L27/2602 , H04B1/7176
摘要： The present invention provides a versatile system for selectively spreading carrier data across multiple carrier paths within an Orthogonal Frequency Division Multiplexing (OFDM) system (200), particularly an ultra-wideband (UWB) system. The present invention provides a data input (202), which passes data to a randomizer (204). The data then passes to a convolutional code function (206), the output of which is punctured by puncturing function (208). An interleaver function (210) receives the punctured code data, and cooperatively operates with a mapper element (218) to prepare the coded data for pre-transmission conversion by an IFFT (220). The mapper element (218) comprises a dual carrier modulation function (216), which associates and transforms two punctured code data elements into a format for transmission on two separate signal tones.
摘要翻译：本发明提供了一种通用系统，用于在正交频分复用（OFDM）系统（200），特别是超宽带（UWB）系统内的多个载波路径上选择性地扩展载波数据。本发明提供一种将数据传递给随机发生器（204）的数据输入（202）。数据然后传递到卷积码功能（206），其输出被穿孔功能（208）打孔。交织器功能（210）接收穿孔码数据，并与映射器元件（218）协作操作，以通过IFFT（220）准备用于预传输转换的编码数据。映射器元件（218）包括双载波调制功能（216），其将两个穿孔码数据元素相关联并变换为用于在两个分离的信号音调上传输的格式。

10. 发明申请

WO2005112319A3 MAPPING DATA TONES ONTO GUARD TONES FOR A MULTI-BAND OFDM SYSTEM 审中-公开
标题翻译：将数据映射映射到多带OFDM系统的保护波段
公开(公告)号：WO2005112319A3
公开(公告)日：2006-08-24
申请号：PCT/US2005016342
申请日：2005-05-09
申请人： TEXAS INSTRUMENTS INC , ATRA ANUJ , BALAKRISHNAN JAIGANESH
发明人： ATRA ANUJ , BALAKRISHNAN JAIGANESH
IPC分类号： H04J11/00 , H04L27/26
CPC分类号： H04L27/2605 , H04B1/7163
摘要： A device is provided for wireless communication. The device includes a transmitter (200) operable to transmit an orthogonal frequency division multiplex symbol. The orthogonal frequency division multiplex symbol has a first set of copied tones adjacent a first end of the orthogonal frequency division multiplex symbol, a second set of copied tones adjacent a second end of the orthogonal frequency division multiplex symbol, and a plurality of data tones provided between the first and second sets of copied tones. The first and second sets of copied tones include copies of at least some of the plurality of data tones.
摘要翻译：提供用于无线通信的设备。该设备包括可操作以发送正交频分复用符号的发射机（200）。正交频分复用符号具有与正交频分复用符号的第一端相邻的第一组复制音调，与正交频分复用符号的第二端相邻的第二组复制音和提供的多个数据音在第一组和第二组复制音之间。第一和第二组复制音调包括多个数据音调中的至少一些的副本。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式