公开(公告)号：WO2004072829A3

公开(公告)日：2004-09-30

申请号：PCT/US2004004439

申请日：2004-02-11

Applicant: INTERDIGITAL TECH CORP ,  ZEIRA ELDAD ,  ZHANG GUODONG ,  TERRY STEPHEN E ,  MILLER JAMES M

Inventor： ZEIRA ELDAD ,  ZHANG GUODONG ,  TERRY STEPHEN E ,  MILLER JAMES M

IPC: H04L1/00 ,  H04W28/10 ,  H04W28/22 ,  H04B1/38 ,  H04M1/00

CPC classification number: H04W28/0236 ,  H04L1/0002 ,  H04L1/0015 ,  H04L1/0026 ,  H04L1/203 ,  H04L47/22 ,  H04W24/02 ,  H04W28/10 ,  H04W28/22 ,  H04W36/0011

Abstract: A wireless communication method and system for controlling the current data bit rate of a radio link (RL) to maintain the quality of the RL. The system includes a core network (CN), a radio network controller (RNC) and at least one wireless transmit/receive unit (WTRU). The RL is established between the RNC and the WTRU. The RNC establishes a guaranteed data bit rate, a maximum data bit rate and a current data bit rate associated with the RL. When the RNC senses an event which indicates that the quality of the RL has substantially deteriorated, the RNC reduces the value of the current data bit rate. Then, in a recovery process, if a similar event does not occur during an established waiting period, the RNC restores the current data bit rate back to the maximum data bit rate.

Abstract translation: 一种用于控制无线电链路（RL）的当前数据比特率以保持RL的质量的无线通信方法和系统。 该系统包括核心网络（CN），无线电网络控制器（RNC）和至少一个无线发射/接收单元（WTRU）。 在RNC和WTRU之间建立RL。 RNC建立与RL相关联的保证数据比特率，最大数据比特率和当前数据比特率。 当RNC感测到指示RL的质量已经显着恶化的事件时，RNC减小当前数据比特率的值。 然后，在恢复处理中，如果在建立的等待期间没有发生类似的事件，则RNC将当前数据比特率恢复到最大数据比特率。

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：WO2007024950A3

公开(公告)日：2009-04-23

申请号：PCT/US2006032922

申请日：2006-08-23

Applicant: INTERDIGITAL TECH CORP ,  ZHANG GUODONG ,  PAN JUNG-LIN ,  TSAI YINGMING

Inventor： ZHANG GUODONG ,  PAN JUNG-LIN ,  TSAI YINGMING

CPC classification number: H04L27/2601 ,  H04B7/26 ,  H04W36/08 ,  H04W36/30

Abstract: A wireless communication method and apparatus for selecting cells in an orthogonal frequency division multiple access (OFDMA) system are disclosed. A wireless transmit/receive unit (WTRU) measures a downlink path loss of a current serving cell and at least one other cell. The WTRU determines whether a path loss difference between the serving cell and the other cell is below a threshold. If the path loss difference is below the threshold, the WTRU measures a channel quality indicator (CQI) for each of the plurality of subcarrier blocks in the downlink of the current serving cell and the other cell, respectively. The WTRU reports the CQIs to a serving Node-B which selects a new cell based on the CQIs. Alternatively, a centralized access gateway (aGW) may select the new serving cell/Node-B, or the cell selection decision made by the serving Node-B may be forwarded to another Node-B via the centralized aGW.

Abstract translation: 公开了一种用于在正交频分多址（OFDMA）系统中选择小区的无线通信方法和装置。 无线发射/接收单元（WTRU）测量当前服务小区和至少一个其他小区的下行链路路径损耗。 WTRU确定服务小区和另一小区之间的路径损耗差是否低于阈值。 如果路径损耗差低于阈值，则WTRU分别针对当前服务小区和另一个小区的下行链路中的多个子载波块中的每一个分别测量信道质量指示符（CQI）。 WTRU向基于CQI选择新小区的服务节点B报告CQI。 或者，集中接入网关（aGW）可以选择新的服务小区/节点B，或者由服务节点B做出的小区选择决定可以经由集中式aGW被转发到另一节点B。

公开(公告)号：WO2008036366A3

公开(公告)日：2008-06-26

申请号：PCT/US2007020391

申请日：2007-09-20

Applicant: INTERDIGITAL TECH CORP ,  ZHANG GUODONG ,  PAN KYLE JUNG-LIN ,  WANG PETER S ,  TERRY STEPHEN E

Inventor： ZHANG GUODONG ,  PAN KYLE JUNG-LIN ,  WANG PETER S ,  TERRY STEPHEN E

IPC: H04B7/26

CPC classification number: H04B7/2656

Abstract: A method and apparatus for detecting an overlap of an E-DCH transmission or retransmission in TTIs that overlap with an assigned uplink compressed mode gap is disclosed. More specifically, detecting an overlap of an E-DCH transmission or retransmission in TTIs that overlap with an uplink compressed mode gap assigned by a Node B when a WTRU is configured with a 2 ms TTI is disclosed. After detecting the overlap of the E-DCH transmission or retransmission and the uplink compressed mode gap, the E-DCH transmission or retransmission is paused.

Abstract translation: 公开了一种用于检测与分配的上行链路压缩模式间隙重叠的TTI中的E-DCH传输或重传的重叠的方法和装置。 更具体地，公开了当WTRU配置有2ms TTI时，检测与由节点B分配的上行链路压缩模式间隙重叠的TTI中的E-DCH传输或重传的重叠。 在检测到E-DCH传输或重传与上行链路压缩模式间隙的重叠之后，暂停E-DCH传输或重传。

公开(公告)号：WO2008024173A3

公开(公告)日：2008-05-22

申请号：PCT/US2007016781

申请日：2007-07-26

Applicant: INTERDIGITAL TECH CORP ,  ZHANG GUODONG ,  TSAI ALLAN Y

Inventor： ZHANG GUODONG ,  TSAI ALLAN Y

IPC: H04L27/26

CPC classification number: H04L27/266 ,  H04J11/0073 ,  H04L27/261 ,  H04L27/2655 ,  H04L27/2659 ,  H04L27/2675 ,  H04L27/2697 ,  H04L2027/0038

Abstract: The present invention is related to a receiver having a plurality of antennas for receiving and performing hybrid timing and frequency offset on at least one signal that includes at least one synchronization channel (SCH) symbol having a plurality of time domain repetitive blocks. The receiver further includes an auto-correlation unit that outputs an auto-correlation result and the power of the received signal, a coarse timing detection unit that generates a coarse timing metric, a frequency offset estimation unit that generates a coarse frequency offset metric based on the coarse timing metric and the received signal, a frequency offset compensation unit that generates a compensated version of the received signal, and a fine tuning detection unit that generates a fine tuning detection metric based on a sample of the compensated version of the received signal that is cross-correlated with a primary synchronization channel (P-SCH) code sequence.

Abstract translation: 本发明涉及具有多个天线的接收机，用于在包括具有多个时域重复块的至少一个同步信道（SCH）符号的至少一个信号上接收和执行混合定时和频率偏移。 接收机还包括自相关单元，其输出自相关结果和接收信号的功率，产生粗定时度量的粗定时检测单元，产生粗频偏移度量的频偏估算单元，基于 粗略定时度量和接收信号，产生接收信号的补偿版本的频率偏移补偿单元，以及微调检测单元，其基于接收信号的补偿版本的采样生成微调检测度量， 与主同步信道（P-SCH）码序列交叉相关。

公开(公告)号：WO2008024214A2

公开(公告)日：2008-02-28

申请号：PCT/US2007017712

申请日：2007-08-09

Applicant: INTERDIGITAL TECH CORP ,  LU GUANG ,  ZHANG GUODONG ,  CHANDRA ARTY

Inventor： LU GUANG ,  ZHANG GUODONG ,  CHANDRA ARTY

CPC classification number: H04W72/005

Abstract: The present invention is related to a method and system for multi-cell coordination for multimedia broadcast multicast services (MBMS) in a wireless communication system. An MBMS multi-cell coordination unit is provided to coordinate a plurality of evolved Node-Bs (eNodeBs) for transmission of MBMS data synchronously in multiple cells of the same single frequency network (SFN). The MBMS multi-cell coordination unit may be located in an access gateway or in an eNodeB. An MBMS multi-cell scheduling scheme may be preconfigured for the eNodeBs for synchronization. Alternatively, the eNodeBs may be synchronized dynamically.

Abstract translation: 本发明涉及一种用于无线通信系统中多媒体广播组播服务（MBMS）的多小区协调的方法和系统。 提供MBMS多小区协调单元，用于在同一单频网络（SFN）的多个小区中同步地协调用于MBMS数据传输的多个演进节点B（eNodeB）。 MBMS多小区协调单元可以位于接入网关或eNodeB中。 可以为eNodeB同步预先配置MBMS多小区调度方案。 或者，可以动态地同步eNodeB。

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。

公开(公告)号：WO2007027513A3

公开(公告)日：2007-11-01

申请号：PCT/US2006033150

申请日：2006-08-24

Applicant: INTERDIGITAL TECH CORP ,  PAN JUNG-LIN ,  TERRY STEPHEN E ,  ZHANG GUODONG ,  WANG PETER SHAOMIN

Inventor： PAN JUNG-LIN ,  TERRY STEPHEN E ,  ZHANG GUODONG ,  WANG PETER SHAOMIN

IPC: H04W72/12

CPC classification number: H04W72/1289 ,  H04W72/1268

Abstract: A method and apparatus for processing enhanced uplink scheduling grants are disclosed. A wireless transmit/receive unit (WTRU) detects an absolute grant (AG) and a relative grant (RG). Once the WTRU detects an AG or a RG, a new serving grant (SG) is generated and a hybrid automatic repeat request process may be activated or deactivated depending on whether the received AG is a primary AG or a secondary AG, whether a scheduling mode is a primary AG mode or a secondary AG mode, whether an AG value is set to "INACTIVE" and whether a transmission time interval is 2ms or 10ms. A Node-B may send a secondary AG to the WTRU before switching from a primary AG mode to a secondary AG mode and may send the secondary AG only if there is no out-of-date secondary AG exists, which may be detected by implementing a time threshold.

Abstract translation: 公开了一种用于处理增强的上行链路调度许可的方法和装置。 无线发射/接收单元（WTRU）检测绝对授权（AG）和相对授权（RG）。 一旦WTRU检测到AG或RG，则生成新的服务授权（SG），并且可以根据所接收的AG是主AG还是辅助AG来激活或去激活混合自动重传请求过程，无论是调度模式 是主AG模式还是辅助AG模式，AG值是否设置为“INACTIVE”，传输时间间隔是2ms还是10ms。 节点B可以在从主AG模式切换到辅助AG模式之前向WTRU发送辅助AG，并且只有当没有过期的次级AG存在时才发送次级AG，这可能通过实现来检测 时间阈值。

公开(公告)号：WO2006116003A3

公开(公告)日：2007-10-04

申请号：PCT/US2006014947

申请日：2006-04-20

Applicant: INTERDIGITAL TECH CORP ,  ZHANG GUODONG ,  TSAI YINGMING ,  PAN JUNG-LIN

Inventor： ZHANG GUODONG ,  TSAI YINGMING ,  PAN JUNG-LIN

IPC: H04B1/00 ,  H04L27/28

CPC classification number: H04L5/0007 ,  H04L5/0016 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/005 ,  H04L5/0073 ,  H04L27/2601 ,  H04L27/2647

Abstract: A hybrid orthogonal frequency division multiple access (OFDMA) system including a transmitter 100 and a receiver 200 IF disclosed. The transmitter 100 includes a first spread OFDMA subassembly 130, a first non-spread OFDMA subassembly 140 and a f irst common subassembly 150. The f irst spread OFDMA subassembly 130 spreads input data 101 and maps the spread data 103 to a first group of subcarriers 105. The first non-spread OFDMA subassembly 140 maps input data 111 to a second group of subcarriers 115. The first common subassembly 150 transmits the input data mapped to the first and second group of subcarriers using OFDMA. The receiver includes a second spread OFDMA subassembly 230, a second non-spread OFDMA subassembly 240 and a second common subassembly 250. The second common subassembly 250 processes received data to recover data mapped to the subcarriers using OFDMA. The second spread OFDMA subassembly 230 recovers the first input data by separating user data in a code domain and the second non-spread OFDMA subassembly 240 recovers the second input data.

Abstract translation: 包括发射机100和接收机200I的混合正交频分多址（OFDMA）系统。 发射机100包括第一扩展OFDMA子组件130，第一非扩展OFDMA子组件140和第一公共子组件150.第一扩展OFDMA子组件130扩展输入数据101，并将扩展数据103映射到第一组副载波105 第一非扩展OFDMA子组件140将输入数据111映射到第二组子载波115.第一公共子组件150使用OFDMA发送映射到第一和第二子载波组的输入数据。 接收机包括第二扩展OFDMA子组件230，第二非扩展OFDMA子组件240和第二公共子组件250.第二公共子组件250处理接收到的数据以恢复使用OFDMA映射到子载波的数据。 第二扩展OFDMA子组件230通过分离代码域中的用户数据并且第二非扩展OFDMA子组件240恢复第二输入数据来恢复第一输入数据。

公开(公告)号：WO2007078712A3

公开(公告)日：2007-08-23

申请号：PCT/US2006047327

申请日：2006-12-12

Applicant: INTERDIGITAL TECH CORP ,  CHEN JOHN S ,  OLESEN ROBERT L ,  ZHANG GUODONG ,  SHIN SUNG-HYUK ,  LIM JUNSUNG ,  CHANDRA ARTY ,  GRANDHI SUDHEER A

Inventor： CHEN JOHN S ,  OLESEN ROBERT L ,  ZHANG GUODONG ,  SHIN SUNG-HYUK ,  LIM JUNSUNG ,  CHANDRA ARTY ,  GRANDHI SUDHEER A

IPC: H04L27/26

CPC classification number: H04L5/0007 ,  H04L1/0026 ,  H04L5/0037 ,  H04L5/0048 ,  H04L5/006 ,  H04L5/0085 ,  H04L25/022 ,  H04L25/0226 ,  H04L25/0232 ,  H04W72/08

Abstract: In an orthogonal frequency division multiple access (OFDMA) system including at least one base station and at least one wireless transmit/receive unit (WTRU), sub-carriers are allocated for data transmissions to multiple access WTRUs, where sub-carriers are allocated according to a consecutive sub-carrier allocation (CSA) type and a distributed sub-carrier allocation (DSA) type. Pilot signals with distributed pilot sub-carriers are transmitted and measured at each WTRU to obtain a channel quality metric for each pilot sub-carrier. Each WTRU sends feedback to the base station reporting channel quality based on the measured channel quality metrics. An allocation type is selected and adaptively switched according to channel variations in time and frequency domain.

Abstract translation: 在包括至少一个基站和至少一个无线发射/接收单元（WTRU）的正交频分多址（OFDMA）系统中，分配了用于向多个接入WTRU进行数据传输的子载波，其中根据 连续的子载波分配（CSA）类型和分布式子载波分配（DSA）类型。 在每个WTRU处，发射和测量具有分布式导频子载波的导频信号，以获得每个导频子载波的信道质量度量。 每个WTRU基于所测量的信道质量度量向基站报告信道质量的反馈。 根据时域和频域的频道变化选择分配类型并进行自适应切换。