公开(公告)号：WO2007109039A2

公开(公告)日：2007-09-27

申请号：PCT/US2007006394

申请日：2007-03-14

Applicant: INTERDIGITAL TECH CORP ,  KOO CHANG-SOO ,  SHAH NIRAV ,  OLESEN ROBERT LIND

Inventor： KOO CHANG-SOO ,  SHAH NIRAV ,  OLESEN ROBERT LIND

IPC: H04B7/005 ,  H04B7/06

CPC classification number: H04L25/0248 ,  H04B7/043 ,  H04B7/0434 ,  H04B7/0443 ,  H04L27/2601 ,  H04L27/2602 ,  H04W28/18 ,  H04W52/346 ,  H04W52/42

Abstract: In a wireless communication system including a plurality of sub-carriers and a plurality of eigenbeams, a method for tuning a beamformed signal. The method includes adjusting a total gain of each of the plurality of sub-carriers and eigenbeams, and applying the adjusted total gain to each of the sub-carriers and each of the eigenbeams.

Abstract translation: 在包括多个子载波和多个本征波束的无线通信系统中，一种用于调谐波束形成信号的方法。 该方法包括调整多个子载波和特征波束中的每一个的总增益，以及将调整的总增益应用于每个子载波和每个本征波束。

公开(公告)号：WO2006138021A3

公开(公告)日：2007-03-08

申请号：PCT/US2006019895

申请日：2006-05-23

Applicant: INTERDIGITAL TECH CORP ,  PAN JUNG-LIN ,  OLESEN ROBERT LIND ,  TSAI YINGMING

Inventor： PAN JUNG-LIN ,  OLESEN ROBERT LIND ,  TSAI YINGMING

IPC: H04L23/02

CPC classification number: H01Q3/2605

Abstract: The present invention is related to a method and apparatus for generating feedback information for transmit power control in a multiple-input multiple-output (MIMO) wireless communication system. Both a transmitter and a receiver comprise multiple antennae for transmission and reception. The transmitter comprises a power allocation unit for controlling transmit power based on a feedback received from the receiver. The receiver comprises a channel estimator and a singular value decomposition (SVD) unit. The channel estimator generates a channel matrix from a signal received from the transmitter and the SVD unit decomposes the channel matrix into D, U and V matrices. The receiver sends a feedback generated based on output from the SVD unit to the transmitter. The feedback may be one of an eigenvalue, a transmit power level or a power control bit or command. A hybrid scheme for selecting one of them based on channel condition may be implemented.

Abstract translation: 本发明涉及一种用于在多输入多输出（MIMO）无线通信系统中产生用于发射功率控制的反馈信息的方法和装置。 发射机和接收机都包括用于传输和接收的多个天线。 发射机包括功率分配单元，用于基于从接收机接收的反馈来控制发射功率。 接收机包括信道估计器和奇异值分解（SVD）单元。 信道估计器从从发射机接收的信号中生成信道矩阵，并且SVD单元将信道矩阵分解为D，U和V矩阵。 接收机将基于SVD单元的输出产生的反馈发送到发射机。 反馈可以是特征值，发射功率电平或功率控制位或命令之一。 可以实现用于基于信道条件选择其中的一个的混合方案。

公开(公告)号：WO2006107888A2

公开(公告)日：2006-10-12

申请号：PCT/US2006012337

申请日：2006-03-31

Applicant: INTERDIGITAL TECH CORP ,  OLESEN ROBERT LIND

Inventor： OLESEN ROBERT LIND

IPC: H04B7/02 ,  H04J99/00

CPC classification number: H04B7/0417 ,  G06F17/16 ,  H04B7/0408 ,  H04B7/0617 ,  H04B7/0634 ,  H04B7/0663 ,  H04L25/0208 ,  H04L25/0248 ,  H04L27/2647

Abstract: A method and apparatus for decomposing a channel matrix in a wireless communication system are disclosed. A channel matrix H is generated for channels between transmit antennas and receive antennas. A Hermitian matrix A=HHH or A=HHH is created. A Jacobi process is cyclically performed on the matrix A to obtain Q and DA matrixes such that A=QDAQH. DA is a diagonal matrix obtained by singular value decomposition (SVD) on the A matrix. In each Jacobi transformation, real part diagonalization is performed to annihilate real parts of off-diagonal elements of the matrix and imaginary part diagonalization is performed to annihilate imaginary parts of off-diagonal elements of the matrix after the real part diagonalization. U, V and DH matrixes of H matrix are then calculated from the Q and DA matrices. DH is a diagonal matrix comprising singular values of the H matrix.

Abstract translation: 公开了一种在无线通信系统中分解信道矩阵的方法和装置。 为发射天线和接收天线之间的信道生成信道矩阵H. 创建Hermitian矩阵A = HHH或A = HHH。 在矩阵A上循环执行Jacobi过程以获得Q和DA矩阵，使得A = QDAQH。 DA是通过在A矩阵上的奇异值分解（SVD）获得的对角矩阵。 在每个雅可比变换中，执行实部对角化以湮灭矩阵的非对角元素的实部，并且执行虚部对角化​​以在实部对角化之后湮灭矩阵的非对角元素的虚部。 然后从Q和DA矩阵计算H矩阵的U，V和DH矩阵。 DH是包括H矩阵的奇异值的对角矩阵。

公开(公告)号：WO2005053206A3

公开(公告)日：2006-03-23

申请号：PCT/US2004038611

申请日：2004-11-19

Applicant: INTERDIGITAL TECH CORP ,  OLESEN ROBERT LIND ,  REZNIK ALEXANDER ,  PIETRASKI PHILIP J ,  YANG RUI

Inventor： OLESEN ROBERT LIND ,  REZNIK ALEXANDER ,  PIETRASKI PHILIP J ,  YANG RUI

IPC: H04L20060101 ,  H04L1/02 ,  H04L27/26

CPC classification number: H04L27/2647 ,  H04B7/0845 ,  H04B7/086

Abstract: A wireless communication apparatus (200) which uses fast Fourier transforms (FFTs) in an orthogonal frequency division multiplexing (OFDM) receiver (250) which incorporates a beam space antenna array (205). The beam space antenna array may be implemented with a Butler matrix array. The beam space antenna array may be a circular array, vertical array, or a combination of both circular and vertical arrays, for providing the desired angular antenna coverage. In one embodiment, the antenna array is optimized because the FFTs are linear invariant transform operators (210), whereby the order of operations in the OFDM receiver can be interchanged.

Abstract translation: 一种在包含波束空间天线阵列（205）的正交频分复用（OFDM）接收机（250）中使用快速傅里叶变换（FFT）的无线通信装置（200）。 波束空间天线阵列可以用Butler矩阵阵列来实现。 波束空间天线阵列可以是圆形阵列，垂直阵列或圆形阵列和垂直阵列的组合，用于提供所需的角度天线覆盖。 在一个实施例中，天线阵列被优化，因为FFT是线性不变变换运算符（210），由此OFDM接收机中的操作顺序可以互换。

公开(公告)号：WO2005053209A2

公开(公告)日：2005-06-09

申请号：PCT/US2004039594

申请日：2004-11-24

Applicant: INTERDIGITAL TECH CORP ,  CHITRAPU PRABHAKAR R ,  BRIANCON ALAIN CHARLES LOUIS ,  KUMOLUYI AKIN O ,  CARLTON ALAN GERALD ,  VANGANURU KIRAN KUMAR S ,  HERSCHAFT RICHARD DAN ,  HOFFMANN JOHN ERICH ,  THOMMANA JOHN ,  ZHANG GUODONG ,  OLESEN ROBERT LIND ,  REZNIK ALEXANDER ,  SHAN TIEJUN ,  SHIN SUNG-HYUK ,  SINGHAL AMIT ,  PURKAYASTHA DEBASHISH

Inventor： CHITRAPU PRABHAKAR R ,  BRIANCON ALAIN CHARLES LOUIS ,  KUMOLUYI AKIN O ,  CARLTON ALAN GERALD ,  VANGANURU KIRAN KUMAR S ,  HERSCHAFT RICHARD DAN ,  HOFFMANN JOHN ERICH ,  THOMMANA JOHN ,  ZHANG GUODONG ,  OLESEN ROBERT LIND ,  REZNIK ALEXANDER ,  SHAN TIEJUN ,  SHIN SUNG-HYUK ,  SINGHAL AMIT ,  PURKAYASTHA DEBASHISH

IPC: G06T1/00 ,  H04L9/00 ,  H04L9/08 ,  H04L9/32 ,  H04L12/56 ,  H04W12/02 ,  H04W88/02 ,  H04L

CPC classification number: H04W12/04 ,  H04L9/3234 ,  H04L9/3247 ,  H04L2463/061 ,  H04L2463/103 ,  H04W12/02 ,  H04W12/10 ,  H04W88/02

Abstract: Tokens/keys are produced for wireless communications. These tokens/keys are used for watermarks, signature insertion, encryption and other uses. In one embodiment, contextual information is used to generate tokens/keys. The tokens/keys may be derived directly from the contextual information. The contextual information may be used in conjunction with other information to derive the tokens/keys. Tokens/keys may be exchanged between transmit/receive units. The exchange of these tokens/keys may be encrypted.

Abstract translation: 产生用于无线通信的令牌/密钥。 这些令牌/密钥用于水印，签名插入，加密和其他用途。 在一个实施例中，使用上下文信息来生成令牌/密钥。 令牌/密钥可以直接从上下文信息导出。 上下文信息可以与其他信息一起使用以导出令牌/密钥。 令牌/密钥可以在发送/接收单元之间交换。 这些令牌/密钥的交换可以被加密。

公开(公告)号：WO2007103085A3

公开(公告)日：2008-01-10

申请号：PCT/US2007005179

申请日：2007-02-28

Applicant: INTERDIGITAL TECH CORP ,  KOO CHANG-SOO ,  CHANDRA ARTY ,  WANG JIN ,  OLESEN ROBERT LIND ,  YEN CHIA-PANG ,  VOLTZ PETER J

Inventor： KOO CHANG-SOO ,  CHANDRA ARTY ,  WANG JIN ,  OLESEN ROBERT LIND ,  YEN CHIA-PANG ,  VOLTZ PETER J

IPC: H04L25/03 ,  H04B7/06 ,  H04L1/06

CPC classification number: H04L25/03343 ,  H04B7/0408 ,  H04B7/0626 ,  H04B7/0643 ,  H04B17/0085 ,  H04B17/21 ,  H04B17/24 ,  H04L25/0204 ,  H04L25/0228 ,  H04L25/0242 ,  H04L25/0398 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03611 ,  H04L2025/03802

Abstract: A method and apparatus for calibration and channel state feedback to support transmit beamforming in a multiple-input multiple-output (MIMO) system are disclosed. For radio frequency (RF) calibration, a first station (STA) sends a calibration request to a second STA, and the second STA sends a sounding packet to the first STA. The first STA receives the sounding packet, performs at least one channel measurement and performs calibration based on the channel measurement. For channel state feedback, the first STA sends a channel state feedback request to the second STA. The second STA sends a sounding packet to the first STA. The first STA receives the sounding packet and performs at least one channel measurement with the sounding packet. The first STA then calculates a steering matrix for transmit beamforming based on the channel measurement.

Abstract translation: 公开了一种用于校准和信道状态反馈以支持多输入多输出（MIMO）系统中的发射波束成形的方法和装置。 对于射频（RF）校准，第一站（STA）向第二STA发送校准请求，并且第二STA向第一STA发送探测分组。 第一STA接收探测包，执行至少一个信道测量，并根据信道测量进行校准。 对于信道状态反馈，第一STA向第二STA发送信道状态反馈请求。 第二STA向第一STA发送一个探测包。 第一STA接收探测分组，并用声音分组进行至少一个信道测量。 然后，第一STA基于信道测量来计算用于发射波束形成的导引矩阵。

公开(公告)号：WO2006130725A3

公开(公告)日：2007-12-13

申请号：PCT/US2006021173

申请日：2006-05-31

Applicant: INTERDIGITAL TECH CORP ,  REZNIK ALEXANDER ,  PURKAYASTHA DEBASHISH ,  GOLDBERG STEVEN JEFFREY ,  OLESEN ROBERT LIND ,  RUDOLF MARIAN ,  CHA INHYOK ,  CARLTON ALAN GERALD ,  SHAH YOGENDRA C ,  RAHMAN SHAMIN AKBAR ,  MUKHERJEE RAJAT PRITAM ,  DIFAZIO ROBERT A ,  STERNBERG GREGORY S ,  KAZAKEVICH LEONID ,  SIWIAK KAZIMIERZ ,  ZHANG GUODONG ,  HAQUE TANBIR ,  GUCCIONE LOUIS J ,  CHITRAPU PRABHAKAR R ,  KUMOLUYI AKINLOLU OLORUNTOSI ,  BRIANCON ALAIN CHARLES LOUIS

Inventor： REZNIK ALEXANDER ,  PURKAYASTHA DEBASHISH ,  GOLDBERG STEVEN JEFFREY ,  OLESEN ROBERT LIND ,  RUDOLF MARIAN ,  CHA INHYOK ,  CARLTON ALAN GERALD ,  SHAH YOGENDRA C ,  RAHMAN SHAMIN AKBAR ,  MUKHERJEE RAJAT PRITAM ,  DIFAZIO ROBERT A ,  STERNBERG GREGORY S ,  KAZAKEVICH LEONID ,  SIWIAK KAZIMIERZ ,  ZHANG GUODONG ,  HAQUE TANBIR ,  GUCCIONE LOUIS J ,  CHITRAPU PRABHAKAR R ,  KUMOLUYI AKINLOLU OLORUNTOSI ,  BRIANCON ALAIN CHARLES LOUIS

IPC: H04L9/00 ,  H04B7/00 ,  H04L9/30

CPC classification number: H04B7/0434 ,  H04B7/0695 ,  H04L9/0631 ,  H04L9/0656 ,  H04L9/0875 ,  H04L9/3271 ,  H04L63/0428 ,  H04L63/061 ,  H04L63/08 ,  H04L63/1441 ,  H04L63/1466 ,  H04L63/18 ,  H04L2209/34 ,  H04L2209/80 ,  H04W12/02 ,  H04W12/04 ,  H04W12/06 ,  H04W92/10

Abstract: The present invention relates to secret key generation and authentication methods that are based on joint randomness not shared by others (JRNSO), in which unique channel response between two communication terminals generates a secret key. Multiple network access points use a unique physical location of a receiving station to increase user data security. High data rate communication data is encrypted by generating a random key and a pseudo-random bit stream. A configurable interleaving is achieved by introduction of JRNSO bits to an encoder used for error-correction codes. Databases of user data are also protected by JRNSO-based key mechanisms. Additional random qualities are induced on the joint channel using MIMO eigen-beamforming, antenna array deflection, polarization selection, pattern deformation, and path selection by beamforming or time correlation. Gesturing induces randomness according to uniquely random patterns of a human user's arm movements inflected to the user device.

Abstract translation: 本发明涉及基于其他人不共享的联合随机性（JRNSO）的秘密密钥生成和认证方法，其中两个通信终端之间的唯一信道响应产生密钥。 多个网络接入点使用接收站的唯一物理位置来增加用户数据的安全性。 通过生成随机密钥和伪随机比特流来加密高数据速率通信数据。 通过将JRNSO位引入用于纠错码的编码器来实现可配置的交错。 用户数据的数据库也受到基于JRNSO的关键机制的保护。 使用MIMO本征波束形成，天线阵列偏转，偏振选择，图案变形以及通过波束形成或时间相关的路径选择，在联合信道上引起附加随机质量。 手势根据用户装置的人体手臂运动的唯一随机模式引起随机性。

公开(公告)号：WO2006107700A3

公开(公告)日：2007-05-31

申请号：PCT/US2006011636

申请日：2006-03-30

Applicant: INTERDIGITAL TECH CORP ,  KOO CHANG-SOO ,  OLESEN ROBERT LIND

Inventor： KOO CHANG-SOO ,  OLESEN ROBERT LIND

IPC: H04J99/00 ,  H04L27/04 ,  H04B7/02

CPC classification number: H04B7/0417 ,  G06F17/16 ,  H04B7/0408 ,  H04B7/0617 ,  H04B7/0634 ,  H04B7/0663 ,  H04L25/0208 ,  H04L25/0248 ,  H04L27/2647

Abstract: A method and apparatus for decomposing a channel matrix in a wireless communication system are disclosed. A channel matrix H is generated for channels between transmit antennas and receive antennas (202). A Hepnitian matrix A=HHH or A=HHn is created (204). A Jacobi process is cyclically performed on the matrix A to obtain Q and DA matrixes such that A=QDAQH (206). DA is a diagonal matrix obtained by singular value decomposition (SVD) on the A matrix. In each Jacobi transformation, real part diagonalization is performed to annihilate real parts of off-diagonal elements of the matrix and imaginary part diagonalization is performed to annihilate imaginary parts of off -diagonal elements of the matrix after the real part diagonalization. U, V and DH matrixes of H matrix are then calculated from the Q and DA matrices. DH is a diagonal matrix comprising singular values of the H matrix (208).

Abstract translation: 公开了一种在无线通信系统中分解信道矩阵的方法和装置。 为发射天线和接收天线（202）之间的信道生成信道矩阵H. 创建肝素矩阵A = HHH或A = HHn（204）。 在矩阵A上循环执行Jacobi过程以获得Q和DA矩阵，使得A = QDAQH（206）。 DA是通过在A矩阵上的奇异值分解（SVD）获得的对角矩阵。 在每个雅可比变换中，执行实部对角化，以消除矩阵的非对角元素的实部，并且进行虚部对角化​​以在实部对角化之后湮灭矩阵的向外对角元素的虚部。 然后从Q和DA矩阵计算H矩阵的U，V和DH矩阵。 DH是包括H矩阵（208）的奇异值的对角矩阵。

公开(公告)号：WO2007038118A2

公开(公告)日：2007-04-05

申请号：PCT/US2006036611

申请日：2006-09-20

Applicant: INTERDIGITAL TECH CORP ,  SAMMOUR MOHAMMED ,  GRANDHI SUDHEER A ,  OLESEN ROBERT LIND

Inventor： SAMMOUR MOHAMMED ,  GRANDHI SUDHEER A ,  OLESEN ROBERT LIND

IPC: H04L12/28 ,  H04W28/06 ,  H04W48/08 ,  H04W52/02 ,  H04W72/12 ,  H04W74/06 ,  H04W88/08

CPC classification number: H04W52/0219 ,  H04J3/0605 ,  H04L43/10 ,  H04W52/0216 ,  H04W72/005 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/14 ,  H04W74/04 ,  H04W74/06 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/22

Abstract: In a wireless communication system comprising at least one access point (AP) and a plurality of stations (STAs), a method for transmission management of the wireless medium comprises the AP configuring a Multiple Receiver Aggregate Multi-Poll/Power Save Aggregation Descriptor (MMP/PSAD) frame with scheduled Uplink Transmission Time (ULT) information for the plurality of STAs. The AP then transmits the MMP/PSAD frame to the plurality of STAs. Upon successfully receiving and decoding the MMP/PSAD frame, STAs transmit during their scheduled ULT.

Abstract translation: 在包括至少一个接入点（AP）和多个站（STA）的无线通信系统中，一种用于无线介质的传输管理的方法包括配置多接收机聚合多轮询/省电聚合描述符（MMP）的AP / PSAD）帧，其具有用于多个STA的调度上行链路传输时间（ULT）信息。 AP然后将MMP / PSAD帧发送到多个STA。 在成功接收和解码MMP / PSAD帧之后，STA在其调度的ULT期间进行传输。

公开(公告)号：WO2005067538A3

公开(公告)日：2006-12-28

申请号：PCT/US2005001334

申请日：2005-01-13

Applicant: INTERDIGITAL TECH CORP ,  KAEWELL JOHN DAVID JR ,  CHITRAPU PRABHAKAR R ,  OLESEN ROBERT LIND ,  SHIN SUNG-HYUK ,  HOFFMANN JOHN ERICH ,  REZNIK ALEXANDER

Inventor： KAEWELL JOHN DAVID JR ,  CHITRAPU PRABHAKAR R ,  OLESEN ROBERT LIND ,  SHIN SUNG-HYUK ,  HOFFMANN JOHN ERICH ,  REZNIK ALEXANDER

IPC: H04B1/00 ,  G06F15/16 ,  G06F15/173 ,  H04B1/10 ,  H04B7/01 ,  H04B7/208 ,  H04B7/212 ,  H04B7/216 ,  H04B7/26 ,  H04B15/00 ,  H04J1/00 ,  H04J3/00 ,  H04J3/16 ,  H04J11/00 ,  H04J13/00 ,  H04J15/00 ,  H04L1/00 ,  H04L1/06 ,  H04L1/08 ,  H04L1/18 ,  H04L12/28 ,  H04L12/56 ,  H04W12/06

CPC classification number: H04B7/2628 ,  H04L1/0041 ,  H04L1/0061 ,  H04L1/0065 ,  H04L1/0606 ,  H04L1/0618 ,  H04L1/08 ,  H04L1/1812 ,  H04W12/06

Abstract: A spread spectrum method and apparatus for protecting and authenticating wirelessly transmitted digital information using numerous techniques. The apparatus may be a wireless code division multiple access (CDMA) communication system, a base station, a wireless transmit/receive unit (WTRU), a transmitter, a receiver and/or an integrated circuit (IC). The wireless CDMA communication system includes a transmitter which steganographically embeds digital information in a CDMA communication signal and wirelessly transmits the CDMA communication signal. The system further includes a receiver which receives the CDMA communication signal and extracts the steganographically embedded digital information from the received CDMA communication signal.

Abstract translation: 一种使用许多技术来保护和认证无线传输的数字信息的扩频方法和装置。 该装置可以是无线码分多址（CDMA）通信系统，基站，无线发射/接收单元（WTRU），发射机，接收机和/或集成电路（IC）。 无线CDMA通信系统包括将数字信息隐写地嵌入CDMA通信信号中的无线发送装置，无线发送CDMA通信信号。 该系统还包括接收CDMA通信信号并从接收到的CDMA通信信号中提取隐写的嵌入式数字信息的接收机。