公开(公告)号：WO2005034404A3

公开(公告)日：2006-03-16

申请号：PCT/US2004028402

申请日：2004-09-01

Applicant: INTERDIGITAL TECH CORP ,  LI BIN ,  REZNIK ALEXANDER

Inventor： LI BIN ,  REZNIK ALEXANDER

IPC: H04B15/00 ,  H04B1/707 ,  H04B7/08 ,  H04K1/00 ,  H04L27/30

CPC classification number: H04B1/712 ,  H04B7/0854

Abstract: A receiver (fig.2) comprises a plurality of antenna elements (210) for receiving a data signal. Each antenna element (210) has a plurality of Rake fingers (200). Each Rake finger (200) processes a received multipath component of the received data signal of its antenna element (210) by applying a complex weight gain to that received multipath component. A complex weight gain generator (205) determines the complex weight gain for each Rake finger (200) for each antenna element (210) using an input from all the Rake fingers (200). A summer (225) combines an output of each Rake finger (200) to produce an estimate of the data signal.

Abstract translation: 接收机（图2）包括用于接收数据信号的多个天线元件（210）。 每个天线元件（210）具有多个耙指（200）。 每个耙指（200）通过对所接收的多路径分量应用复加权增益来处理其天线元件（210）的接收数据信号的接收多径分量。 复合加权增益发生器（205）使用来自所有耙指（200）的输入来确定每个天线元件（210）的每个耙指（200）的复加权增益。 夏季（225）组合每个耙指（200）的输出以产生数据信号的估计。

公开(公告)号：WO2005009057A3

公开(公告)日：2005-07-21

申请号：PCT/US2004022547

申请日：2004-07-13

Applicant: INTERDIGITAL TECH CORP ,  REZNIK ALEXANDER ,  LI BIN ,  YANG RUI ,  ZEIRA ARIELA

Inventor： REZNIK ALEXANDER ,  LI BIN ,  YANG RUI ,  ZEIRA ARIELA

IPC: H04B1/7115 ,  H04B1/00 ,  H04L25/03 ,  H04Q20060101

CPC classification number: H04B1/7113 ,  H04B1/7115 ,  H04L25/03038 ,  H04L25/03987 ,  H04L2025/03592

Abstract: A receiver which suppresses inter-cluster multipath interference by processing an impulse channel response consisting of two multipath clusters, each cluster having groups of signals with multiple delays. In one embodiment, the receiver includes a single antenna and parallel-connected delay units used to align the groups of signals before being input into respective sliding window equalizers. The outputs of the equalizers are combined at chip level via a combiner which provides a single output. In another embodiment, a Cluster Multipath Interference Suppression (CMIS) circuit is incorporated into the receiver. The CMIS circuit includes a hard decision unit and a plurality of signal regeneration units to generate replicas of the multipath clusters. The replicas are subtracted from the respective outputs of the delay units and the results are input to the respective sliding window equalizers. In another embodiment, multiple antennas are used to receive and process the clusters.

Abstract translation: 一种通过处理由两个多路径簇组成的脉冲信道响应来抑制簇间多路径干扰的接收机，每个簇具有多个延迟的信号组。 在一个实施例中，接收器包括单个天线和并联连接的延迟单元，用于在输入到相应滑动窗口均衡器之前对齐这些信号组。 均衡器的输出通过提供单输出的组合器在芯片级组合。 在另一个实施例中，集群多路径干扰抑制（CMIS）电路被结合到接收机中。 CMIS电路包括硬判决单元和多个信号再生单元以生成多路径群集的复制品。 从延迟单元的各个输出中减去副本，并将结果输入到各个滑动窗口均衡器。 在另一个实施例中，使用多个天线来接收和处理群集。

公开(公告)号：WO2004049112A3

公开(公告)日：2004-12-23

申请号：PCT/US0336760

申请日：2003-11-17

Applicant: INTERDIGITAL TECH CORP

Inventor： LI BIN ,  REZNIK ALEXANDER

IPC: H04B1/707 ,  H04L25/02 ,  H04J13/04

CPC classification number: H04L25/0232 ,  H04B1/712 ,  H04B2201/70701

Abstract: A channel estimation method which reduces the strain on resources of a RAKE receiver using a complex weight gain (CWG) algorithm. In one embodiment, a non-adaptive algorithm is used to average blocks of pilot symbols from several slots (320). In another embodiment, an adaptive algorithm implements sliding window averaging or a recursive filter. Using a CWG algorithm (325) reduces the memory and processor requirements of the RAKE receiver.

Abstract translation: 一种使用复加权增益（CWG）算法减少RAKE接收机的资源的应变的信道估计方法。 在一个实施例中，使用非自适应算法来从多个时隙（320）平均导频符号块。 在另一个实施例中，自适应算法实现滑动窗口平均或递归滤波器。 使用CWG算法（325）减少了RAKE接收机的内存和处理器要求。

公开(公告)号：WO2004079717A2

公开(公告)日：2004-09-16

申请号：PCT/US2004006231

申请日：2004-03-01

Applicant: INTERDIGITAL TECH CORP ,  REZNIK ALEXANDER ,  ZEIRA ARIELA ,  OZLUTURK FATIH ,  KAZAKEVICH LEONID

Inventor： REZNIK ALEXANDER ,  ZEIRA ARIELA ,  OZLUTURK FATIH ,  KAZAKEVICH LEONID

IPC: G10L

CPC classification number: H04B1/7103 ,  H04B1/71055 ,  H04B2001/71077 ,  H04B2201/70705

Abstract: A first detector receives a received signal and extracts the data signals from the received signal. A hard decision converter converts soft symbols outputted by the first detector into hard symbols. An interference canceller extracts the voice signals from the received signal. A second detector is connected to the output of the interference canceller, and extracts the individual voice signals. The second detector is a different detector type than the first detector.

Abstract translation: 第一检测器接收接收信号并从接收信号中提取数据信号。 硬判决转换器将由第一检测器输出的软符号转换成硬符号。 干扰消除器从接收到的信号中提取语音信号。 第二检测器连接到干扰消除器的输出，并提取各个声音信号。 第二检测器是与第一检测器不同的检测器类型。

公开(公告)号：WO2006081306A3

公开(公告)日：2009-05-07

申请号：PCT/US2006002673

申请日：2006-01-26

Applicant: INTERDIGITAL TECH CORP ,  REZNIK ALEXANDER ,  KUMOLUYI AKINLOLU OLORUNTOSI ,  ZHANG GUODONG ,  CHITRAPU PRABHAKAR R ,  STERNBERG GREGORY S ,  SHAH YOGENDRA C ,  BRIANCON ALAIN CHARLES LOUIS ,  YE CHUNXUAN

Inventor： REZNIK ALEXANDER ,  KUMOLUYI AKINLOLU OLORUNTOSI ,  ZHANG GUODONG ,  CHITRAPU PRABHAKAR R ,  STERNBERG GREGORY S ,  SHAH YOGENDRA C ,  BRIANCON ALAIN CHARLES LOUIS ,  YE CHUNXUAN

IPC: H04L9/00

CPC classification number: H04K1/00 ,  H04L9/0858 ,  H04L9/0875 ,  H04L9/12 ,  H04L25/0202 ,  H04L25/0224 ,  H04L2209/80 ,  H04W12/04

Abstract: A method and apparatus is used for generating a perfectly random secret key between two or more transceivers in a wireless communication network. In a point- to-point system, both transceivers produce an estimate of the channel impulse response (CIR) based on the received radio signal. The CIR estimation is synchronized and may include error correction and detection. A long secret key of bits is generated from a digitized version of the CIR estimate, from which a perfectly secret encryption key is derived by privacy amplification.

Abstract translation: 一种方法和装置用于在无线通信网络中的两个或多个收发器之间生成完全随机的秘密密钥。 在点对点系统中，两个收发器基于所接收的无线电信号产生信道脉冲响应（CIR）的估计。 CIR估计是同步的，并且可以包括纠错和检测。 从CIR估计的数字化版本产生比特的长秘密密钥，通过隐私放大从其中导出完全秘密的加密密钥。

公开(公告)号：WO2008118136A3

公开(公告)日：2009-04-09

申请号：PCT/US2007021854

申请日：2007-10-12

Applicant: INTERDIGITAL TECH CORP ,  REZNIK ALEXANDER ,  BRIANCON ALAIN CHARLES LOUIS ,  DODIS YEVGENIY ,  SHAH YOGENDRA C ,  YE CHUNXUAN ,  DIFAZIO ROBERT A ,  CHA INHYOK

Inventor： REZNIK ALEXANDER ,  BRIANCON ALAIN CHARLES LOUIS ,  DODIS YEVGENIY ,  SHAH YOGENDRA C ,  YE CHUNXUAN ,  DIFAZIO ROBERT A ,  CHA INHYOK

IPC: H04L9/08 ,  H04L9/18

CPC classification number: H04W12/04 ,  H04L9/065 ,  H04L9/0869 ,  H04L9/0875 ,  H04L63/0457 ,  H04L2209/08 ,  H04L2209/80 ,  H04W12/02

Abstract: A secret stream of bits begins by receiving a public random stream contained in a wireless communication signal at a transmit/receive unit. The public random stream is sampled and specific bits are extracted according to a shared common secret. These extracted bits are used to create a longer secret stream. The shared common secret may be generated using JRNSO techniques, or provided to the transmit/receive units prior to the communication session. Alternatively, one of the transmit/receive unit is assumed to be more powerful than any potential eavesdropper. In this situation, the powerful transmit/receive unit may broadcast and store a public random stream. The weaker transmit/receive unit selects select random bits of the broadcast for creating a key. The weaker transmit/receive unit sends the powerful transmit/receive unit the selected bit numbers, and powerful transmit/receive unit uses the random numbers to produce the key created by the weaker transmit/receive unit.

Abstract translation: 秘密的比特流开始于在发送/接收单元处接收包含在无线通信信号中的公共随机流。 公共随机流被采样，并且根据共享的公共秘密提取特定位。 这些提取的比特用于创建更长的秘密流。 可以使用JRNSO技术生成共享公用秘密，或者在通信会话之前提供给发送/接收单元。 或者，假设发射/接收单元之一比任何潜在的窃听者更强大。 在这种情况下，强大的发送/接收单元可以广播和存储公共随机流。 较弱的发送/接收单元选择用于创建密钥的广播的选择随机比特。 较弱的发射/接收单元发送强大的发射/接收单元所选择的位号，强大的发射/接收单元使用随机数产生由较弱发射/接收单元产生的密钥。

公开(公告)号：WO2008085954A3

公开(公告)日：2009-01-22

申请号：PCT/US2008000226

申请日：2008-01-07

Applicant: INTERDIGITAL TECH CORP ,  ZEIRA ELDAD M ,  REZNIK ALEXANDER ,  GRANDHI SUDHEER A ,  CAVE CHRISTOPHER R ,  MARINIER PAUL ,  DIGIROLAMO ROCCO

Inventor： ZEIRA ELDAD M ,  REZNIK ALEXANDER ,  GRANDHI SUDHEER A ,  CAVE CHRISTOPHER R ,  MARINIER PAUL ,  DIGIROLAMO ROCCO

CPC classification number: H04W74/04 ,  H04L1/0026 ,  H04L1/1671 ,  H04L1/1867 ,  H04L5/0057 ,  H04W52/04 ,  H04W52/50

Abstract: A method and apparatus for uplink transmission over a non-contentious shared feedback channel are disclosed, wherein the parameters of the uplink transmission are determined by the parameters of a downlink transmission. A new uplink channel, called a physical shared uplink feedback channel (PSUFCH) is used for uplink transmission such as feedback information in response to a downlink transmission on a fast shared data channel. The content of the feedback information may be general, e.g. an ACK/NACK or a channel quality indicator (CQI). The PSUFCH is transmitted using power ramping that terminates upon reception of a downlink ACK (DLACK) from a Node-B. No ambiguity resolution is required due to the non-contentious and deterministic mapping of the uplink channel resources.

Abstract translation: 公开了一种通过非争用共享反馈信道进行上行链路传输的方法和装置，其中上行链路传输的参数由下行链路传输的参数确定。 被称为物理共享上行链路反馈信道（PSUFCH）的新的上行链路信道用于上行链路传输，例如响应于快速共享数据信道上的下行链路传输的反馈信息。 反馈信息的内容可以是一般的，例如 ACK / NACK或信道质量指示符（CQI）。 使用在从节点B接收到下行链路ACK（DLACK）时终止的功率斜坡来发送PSUFCH。 由于上行链路信道资源的非争用和确定性映射，不需要歧义解决。

公开(公告)号：WO2008082594A3

公开(公告)日：2008-09-12

申请号：PCT/US2007026392

申请日：2007-12-28

Applicant: INTERDIGITAL TECH CORP ,  MARINIER PAUL ,  REZNIK ALEXANDER ,  TERRY STEPHEN E

Inventor： MARINIER PAUL ,  REZNIK ALEXANDER ,  TERRY STEPHEN E

IPC: H04W72/14

CPC classification number: H04W72/14 ,  H04W52/12 ,  H04W52/146

Abstract: The disclosed method and apparatus for allocating resources comprise scheduling a requesting wireless transmit receive unit (WTRU) for transmission using non-persistent scheduling.

Abstract translation: 所公开的用于分配资源的方法和装置包括使用非持续调度来调度请求无线发射接收单元（WTRU）进行传输。

公开(公告)号：WO2008024357A2

公开(公告)日：2008-02-28

申请号：PCT/US2007018500

申请日：2007-08-21

Applicant: INTERDIGITAL TECH CORP ,  ZEIRA ELDAD M ,  REZNIK ALEXANDER ,  MARINIER PAUL ,  CAVE CHRISTOPHER

Inventor： ZEIRA ELDAD M ,  REZNIK ALEXANDER ,  MARINIER PAUL ,  CAVE CHRISTOPHER

IPC: H04B7/00

CPC classification number: H04W52/28 ,  H04W52/08 ,  H04W52/12 ,  H04W52/241 ,  H04W52/286 ,  H04W52/288 ,  H04W52/44 ,  H04W52/54 ,  H04W52/56

Abstract: When a wireless transmit receive unit (WTRU) is using a reduced dedicated physical control channel (DPCCH) frame, the WTRU may periodically send a normal DPCCH frame. The WTRU may periodically increase the transmit power or send a normal DPCCH frame if there is a transmit power control (TPC) error or a downlink quality is below a threshold. When the WTRU implements DPCCH transmission gating, the WTRU may set a gating period based on the number of received TPC commands. The WTRU or Node-B may restore to a normal mode, if the link quality is below a threshold. The WTRU may periodically increase a transmit power. When a reduced signal-to-interference ratio (SIR) target is used for TPC, the WTRU may increase a transmit power, if the downlink power is not responsive. The WTRU or the Node-B may restore a normal SIR target if the link quality is below a threshold.

Abstract translation: 当无线发射接收单元（WTRU）正在使用精简专用物理控制信道（DPCCH）帧时，WTRU可以周期性地发送正常的DPCCH帧。 如果存在发射功率控制（TPC）错误或下行链路质量低于阈值，则WTRU可以周期性地增加发射功率或发送正常DPCCH帧。 当WTRU实现DPCCH传输门控时，WTRU可以基于接收的TPC命令的数量来设置门控周期。 如果链路质量低于阈值，则WTRU或节点B可以恢复到正常模式。 WTRU可以周期性地增加发射功率。 当降低的信号干扰比（SIR）目标用于TPC时，如果下行链路功率不响应，则WTRU可以增加发射功率。 如果链路质量低于阈值，则WTRU或节点B可恢复正常的SIR目标。

公开(公告)号：WO2006076187A3

公开(公告)日：2007-12-21

申请号：PCT/US2006000124

申请日：2006-01-03

Applicant: INTERDIGITAL TECH CORP ,  SHIN SUNG-HYUK ,  REZNIK ALEXANDER ,  ZHANG GUODONG ,  CHITRAPU PRABHAKAR R

Inventor： SHIN SUNG-HYUK ,  REZNIK ALEXANDER ,  ZHANG GUODONG ,  CHITRAPU PRABHAKAR R

IPC: H04L9/00 ,  H04W12/02 ,  H04W12/10

CPC classification number: H04L63/123 ,  G10L19/018 ,  H04L63/0428 ,  H04L63/0838 ,  H04L63/16 ,  H04W12/02 ,  H04W12/10

Abstract: The present invention is related to a method and apparatus for enhancing security of communications. The apparatus comprises a security processing unit 310, a data processing unit 320, a cross-layer watermarking unit 330, and optionally a smart antenna processor 340. The security processing unit generates a token/key to be used in watermarking and sends a node security policy to other components. The data processing unit generates user data. The cross-layer watermarking unit includes at least one of Layer-2/3, Layer-1 and Layer-0. Each layer performs a different scheme or degree of watermarking. The cross-layer watermarking unit embeds the token]key into the user data transmission on at least one of the layers selectively in accordance with a security policy.

Abstract translation: 本发明涉及一种增强通信安全性的方法和装置。 该装置包括安全处理单元310，数据处理单元320，跨层水印单元330和可选地智能天线处理器340.安全处理单元生成要在水印中使用的令牌/密钥，并发送节点安全 对其他组成部分的政策。 数据处理单元生成用户数据。 跨层水印单元包括层2/3，层1和层0中的至少一个。 每个层执行不同的方案或水印程度。 跨层水印单元根据安全策略选择性地将令牌密钥嵌入到至少一个层上的用户数据传输中。