公开(公告)号：WO2005053209A3

公开(公告)日：2005-06-09

申请号：PCT/US2004/039594

申请日：2004-11-24

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  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: H04L9/00

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.

公开(公告)号：WO2005013507A1

公开(公告)日：2005-02-10

申请号：PCT/US2004/024458

申请日：2004-07-27

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  KOO, Chang-Soo ,  SHIN, Sung-Hyuk

Inventor： KOO, Chang-Soo ,  SHIN, Sung-Hyuk

IPC: H04B7/00

CPC classification number: H04W52/362 ,  H04W52/12 ,  H04W52/143 ,  H04W52/34 ,  H04W52/367

Abstract: An apparatus and method is provided for dynamic range power control of a wireless downlink communication signal (100), such that target signal quality adjustments are held temporarily (102) when it is apparent that transmit power control commands will not produce the desired response at the transmitting station. Comparisons of measured received signals to thresholds are performed to determine whether the transmitting station has either reached the maximum or minimum transmit power, in which case the target signal quality adjustment is controlled accordingly. When normal transmit power is detected (121), the target signal quality adjustments are allowed to resume as usual.

Abstract translation: 提供了一种用于无线下行链路通信信号（100）的动态范围功率控制的装置和方法，使得当显然发射功率控制命令将不会在所述无线下行链路通信信号（100）产生期望的响应时暂时保持目标信号质量调整（102） 发射台。 执行测量的接收信号与阈值的比较，以确定发射站是否达到最大或最小发射功率，在这种情况下相应地控制目标信号质量调整。 当检测到正常发射功率（121）时，允许目标信号质量调整恢复正常。

公开(公告)号：WO2004047331A1

公开(公告)日：2004-06-03

申请号：PCT/US2003/036881

申请日：2003-11-18

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： ZEIRA, Eldad ,  SHIN, Sung-Hyuk

IPC: H04B7/00

CPC classification number: H04W52/283 ,  H04W16/10 ,  H04W16/14 ,  H04W24/10 ,  H04W52/281 ,  H04W52/282 ,  H04W52/54 ,  H04W72/0446 ,  H04W72/06 ,  H04W72/082 ,  H04W74/04

Abstract: A method and system for assigning uplink (UL) slots (36-1 - 36-15) to optimize time division duplex (TDD) UL power. In order to assure proper power control gain, UL slots (36-1 - 36-15) are judiciously allocated close to the beacon slot. The UL slots (36-1 - 36-15) may be allocated based on channel sensing. All users are sorted in the order of reducing fading losses. Sorting information is also used to allocate the UL slots (36-1 - 36-15). The UL slots (36-1 - 36-15) may also be allocated based on signal interference information, code usage availability estimates and spread signal interference values. Alternatively, block error rate (BLER) and signal to interference ratio (SIR) measurements may be used to allocate the UL slots (36-1 - 36-15).

Abstract translation: 一种用于分配上行链路（UL）时隙（36-1至36-15）以优化时分双工（TDD）UL功率的方法和系统。 为了确保适当的功率控制增益，UL插槽（36-1至36-15）在信标插槽附近被明智地分配。 可以基于信道感测来分配UL时隙（36-1至36-15）。 所有用户按照减少衰落损失的顺序进行排序。 排序信息也用于分配UL插槽（36-1至36-15）。 也可以基于信号干扰信息，代码使用可用性估计和扩展信号干扰值来分配UL时隙（36-1至36-15）。 或者，可以使用块错误率（BLER）和信号与干扰比（SIR）测量来分配UL时隙（36-1至36-15）。

公开(公告)号：WO2008151061A1

公开(公告)日：2008-12-11

申请号：PCT/US2008/065388

申请日：2008-05-30

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  SHIN, Sung-Hyuk ,  GRIECO, Donald, M. ,  SHAH, Nirav, B. ,  PIETRASKI, Philip, J. ,  OLESEN, Robert, L.

Inventor： SHIN, Sung-Hyuk ,  GRIECO, Donald, M. ,  SHAH, Nirav, B. ,  PIETRASKI, Philip, J. ,  OLESEN, Robert, L.

IPC: H04L1/00

CPC classification number: H04L1/0071 ,  H04L1/0043 ,  H04L1/0059 ,  H04L1/0067

Abstract: A method and apparatus for channel coding and rate matching of the Physical Uplink Control Channel (PUCCH) and the Physical Downlink Control Channel (PDCCH) is disclosed that uses convolutional encoding to code the control channels. Rate matching is performed using a circular buffer based rate matching algorithm. A rate matching module may contain a single interleaver or may alternatively comprise a plurality of sub-block interleavers. Interleaved coded bits may be stored in the circular buffer in an interlaced format, or output streams from separate sub-block interleavers may be stored contiguously. When a plurality of sub-block interleavers are used, different interleaving patterns may be used. Rate matching may use bit puncturing or repetition to match the rate of the available physical channel resource. Rate matched output bits may be interleaved using a channel interleaver.

Abstract translation: 公开了用于物理上行链路控制信道（PUCCH）和物理下行链路控制信道（PDCCH）的信道编码和速率匹配的方法和装置，其使用卷积编码来对控制信道进行编码。 使用基于循环缓冲器的速率匹配算法来执行速率匹配。 速率匹配模块可以包含单个交织器，或者可以包括多个子块交织器。 交错编码比特可以以隔行格式存储在循环缓冲器中，或者来自分离的子块交织器的输出流可以被连续地存储。 当使用多个子块交织器时，可以使用不同的交织模式。 速率匹配可以使用位删截或重复来匹配可用物理信道资源的速率。 速率匹配输出位可以使用信道交织器进行交织。

公开(公告)号：WO2008042187A2

公开(公告)日：2008-04-10

申请号：PCT/US2007/020779

申请日：2007-09-26

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  SHIN, Sung-Hyuk ,  GRIECO, Donald, M. ,  OLESEN, Robert, L.

Inventor： SHIN, Sung-Hyuk ,  GRIECO, Donald, M. ,  OLESEN, Robert, L.

CPC classification number: H04W52/262 ,  H04L5/0057 ,  H04W52/08 ,  H04W52/10 ,  H04W52/146 ,  H04W52/241 ,  H04W52/242 ,  H04W52/243 ,  H04W52/246 ,  H04W52/265 ,  H04W52/286

Abstract: A combined open loop and closed loop (channel quality indicator (CQI)-based) transmit power control (TPC) scheme with interference mitigation for a long term evolution (LTE) wireless transmit/receive unit (WTRU) is disclosed. The transmit power of the WTRU is derived based on a target signal-to-interference noise ratio (SINR) and a pathloss value. The pathloss value pertains to the downlink signal from a serving evolved Node-B (eNodeB) and includes shadowing. An interference and noise value of the serving eNodeB is included in the transmit power derivation, along with an offset constant value to adjust for downlink (DL) reference signal power and actual transmit power. A weighting factor is also used based on the availability of CQI feedback.

Abstract translation: 公开了一种组合开环和闭环（基于信道质量指示符（CQI））的发射功率控制（TPC）方案，其具有用于长期演进（LTE）无线发射/接收单元（WTRU）的干扰减轻。 基于目标信号与干扰噪声比（SINR）和路径损耗值来导出WTRU的发射功率。 路径损耗值属于来自服务演进节点B（eNodeB）的下行链路信号，并且包括阴影。 服务eNodeB的干扰和噪声值包括在发射功率推导中，以及用于调整下行链路（DL）参考信号功率和实际发射功率的偏移常数值。 还基于CQI反馈的可用性来使用加权因子。

公开(公告)号：WO2008036280A2

公开(公告)日：2008-03-27

申请号：PCT/US2007/020238

申请日：2007-09-18

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  SHIN, Sung-Hyuk ,  KOO, Chang-Soo

Inventor： SHIN, Sung-Hyuk ,  KOO, Chang-Soo

IPC: H04L1/18

CPC classification number: H04L1/1829 ,  H04B1/71072 ,  H04B7/0417 ,  H04L1/1812

Abstract: A method of signal processing in a wireless transmit receive unit (WTRU) including multiple input/multiple output (MIMO) functionality. The method includes the WTRU receiving a plurality of simultaneous signals, performing a first process on at least one of the plurality of simultaneous signals, transmitting a feedback signal based on the first process, and performing a second process on at least one of the plurality of simultaneous signals. The first process is a subset of the second process.

Abstract translation: 包括多输入/多输出（MIMO）功能的无线发射接收单元（WTRU）中的信号处理方法。 该方法包括WTRU接收多个同时信号，对多个同时信号中的至少一个执行第一处理，基于第一处理发送反馈信号，并且对多个同步信号中的至少一个执行第二处理 同步信号。 第一个过程是第二个过程的一个子集。

公开(公告)号：WO2007123904A1

公开(公告)日：2007-11-01

申请号：PCT/US2007/009373

申请日：2007-04-17

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  LI, Yingxue ,  SHIN, Sung-Hyuk ,  ZHANG, Guodong ,  GRIECO, Donald, M.

Inventor： LI, Yingxue ,  SHIN, Sung-Hyuk ,  ZHANG, Guodong ,  GRIECO, Donald, M.

IPC: H04L1/18 ,  H04L1/06

CPC classification number: H04L1/1816 ,  H04L1/0002 ,  H04L1/0625 ,  H04L1/0643 ,  H04L1/0662 ,  H04L1/0668 ,  H04L1/1812 ,  H04L1/1819 ,  H04L1/1845 ,  H04L25/0204

Abstract: A method and apparatus for implementing hybrid automatic repeat request (H-ARQ) in a multiple-input multiple-output (MIMO) wireless communication system are disclosed. A transmitter transmits at least two data packets via two or more antennas. If at least one of the data packets is not successfully transmitted, the transmitter retransmits the data packets while rearranging the data packets in an orthogonal spreading manner. Alternatively, the transmitter may retransmit only the unsuccessfully transmitted data packet along with a new data packet which replaces a successfully transmitted data packet. The unsuccessfully transmitted data packet may simply be repeated without changing its format. When only the unsuccessfully transmitted data packet is retransmitted along with the new data packet, the transmissions may be combined to recover the retransmitted data packet and the new data packet simultaneously.

Abstract translation: 公开了一种在多输入多输出（MIMO）无线通信系统中实现混合自动重传请求（H-ARQ）的方法和装置。 发射机经由两个或更多个天线发送至少两个数据分组。 如果数据分组中的至少一个没有被成功发送，则发射机在以正交扩频方式重排数据分组的同时重发数据分组。 或者，发射机可以仅重新发送不成功发送的数据分组以及替换成功发送的数据分组的新数据分组。 可以简单地重复未成功传输的数据分组，而不改变其格式。 当只有不成功发送的数据分组与新的数据分组一起被重传时，可以组合传输以同时恢复重传的数据分组和新的数据分组。

公开(公告)号：WO2006116579A2

公开(公告)日：2006-11-02

申请号：PCT/US2006/015975

申请日：2006-04-26

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  SHIN, Sung-Hyuk ,  SHAH, Yogendra, C. ,  CHITRAPU, Prabhakar, R. ,  BRIANCON, Alain, Charles, Louis

Inventor： SHIN, Sung-Hyuk ,  SHAH, Yogendra, C. ,  CHITRAPU, Prabhakar, R. ,  BRIANCON, Alain, Charles, Louis

IPC: G06K9/00

CPC classification number: H04K1/00

Abstract: A method and apparatus for securing wireless communications are disclosed. A watermark message is encoded to watermark message symbols. A cover message is encoded to cover message symbols. The watermark message symbols are then overlaid onto the cover message symbols to generate a watermark-embedded cover message in a physical layer. The watermark message symbols have a substantially lower amplitude than the cover message symbols. Thus, the watermark message introduces small perturbation around the constellation points of the cover message symbols. The watermark message symbol may span or spread over a plurality of cover message symbols and may be encrypted with a secret key. The watermark message is used for improving receiver performance by transmitting additional information or for security enhancement purposes. The watermarking function may be selectively turned on and off.

Abstract translation: 公开了一种用于确保无线通信的方法和装置。 水印消息被编码为水印消息符号。 封面信息被编码以覆盖消息符号。 然后将水印消息符号覆盖到封面消息符号上，以在物理层中生成嵌入水印的封面消息。 水印消息符号具有比覆盖消息符号大得多的幅度。 因此，水印消息在覆盖消息符号的星座点周围引入小的扰动。 水印消息符号可以覆盖多个封面消息符号并且可以用秘密密钥加密。 水印消息用于通过发送附加信息或为了安全增强目的来改善接收机性能。 可以选择性地打开和关闭水印功能。

公开(公告)号：WO2006101710A3

公开(公告)日：2006-09-28

申请号：PCT/US2006/007967

申请日：2006-03-06

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  REZNIK, Alexander ,  ZHANG, Guodong ,  SHIN, Sung-Hyuk ,  TU, Zhenyu

Inventor： REZNIK, Alexander ,  ZHANG, Guodong ,  SHIN, Sung-Hyuk ,  TU, Zhenyu

IPC: H04K1/10

Abstract: A transceiver comprising a data processing module, a security processing module, a medium access control (MAC) module, a dirty-paper-coding (DPC) module, and a smart antenna processor. The data processing module provides user data streams to the MAC module and channel state information to the smart antenna processor. The security processing module generates security data and provides the security data to the MAC module. The security module also provides security policy data to the smart antenna processor. The MAC module determines data transmission rates for the user data streams and the security data. In addition, the MAC module allocates the data streams and security data to transmission channels for transmission. The DPC module encodes the security data onto the user data streams. The smart antenna processor generates pre-coding coefficients used by the DPC module and transmits the security encoded data streams.

公开(公告)号：WO2005067538A2

公开(公告)日：2005-07-28

申请号：PCT/US2005/001334

申请日：2005-01-13

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  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: H04B7/216 ,  H04B7/26 ,  H04J11/00 ,  H04L1/00 ,  H04L1/06 ,  H04L1/08 ,  H04L1/18 ,  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: 一种扩频方法和装置，用于使用许多技术来保护和认证无线传输的数字信息。 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在CDMA通信信号中并且无线地发送CDMA通信信号的发射机。 该系统还包括接收CDMA通信信号并从接收的CDMA通信信号中提取隐写的嵌入式数字信息的接收机。