公开(公告)号：WO2006086576A3

公开(公告)日：2007-11-01

申请号：PCT/US2006004623

申请日：2006-02-09

Applicant: INTERDIGITAL TECH CORP ,  LI YINGXUE

Inventor： LI YINGXUE

IPC: H04J99/00 ,  H04L1/02 ,  H04L27/06

CPC classification number: H04L1/02 ,  H04B7/061

Abstract: A wireless communication system includes a transmitter comprising a serial-to-parallel converter for converting serial data bits to a parallel bit stream, a signal mapper coupled to the serial-to-parallel converter and an antenna selector coupled to the serial-to-parallel converter. The signal mapper receives as input a first group of bits from the parallel bit stream, and maps the first group of bits to a channel symbol. The antenna selector receives as input a second group of bits from the parallel bit stream. A transmit antenna array is coupled to the antenna selector and to the signal mapper. The transmit antenna array generates a plurality of transmit antenna patterns with one of the transmit antenna patterns being selected for transmitting the channel symbol based upon the second group of bits from the antenna selector.

Abstract translation: 无线通信系统包括发射机，包括用于将串行数据比特转换为并行比特流的串行到并行转换器，耦合到串行到并行转换器的信号映射器和耦合到串行到并行转换器的天线选择器 转换器。 信号映射器从并行位流接收作为输入的第一组位，并将第一组位映射到通道符号。 天线选择器从并行比特流接收第二组比特作为输入。 发射天线阵列耦合到天线选择器和信号映射器。 发射天线阵列产生多个发射天线模式，其中选择一个发射天线模式用于基于来自天线选择器的第二组比特发送信道符号。

公开(公告)号：WO2006086429A3

公开(公告)日：2007-11-01

申请号：PCT/US2006004363

申请日：2006-02-08

Applicant: INTERDIGITAL TECH CORP ,  LIU KAI ,  WANG CARL ,  CHANDRA ARTY ,  WANG JIN

Inventor： LIU KAI ,  WANG CARL ,  CHANDRA ARTY ,  WANG JIN

IPC: H04L12/413 ,  H04W16/28

CPC classification number: H04W16/28 ,  H04B7/0695

Abstract: An access point receives uplink transmissions from client stations using directional antenna beams. The directional antenna beams are generated by an antenna array. The different directional antenna beams are assigned beam identification numbers, and a preferred antenna beam is selected for each client station. The client stations in the different antenna beam regions initiate their uplink transmissions using assigned backoff slots within the contention window. The access point selects the preferred directional antenna beam corresponding to the directional antenna beams assigned to the backoff slots.

Abstract translation: 接入点使用定向天线波束从客户端站接收上行链路传输。 定向天线波束由天线阵列产生。 不同的定向天线波束被分配波束识别号，并且为每个客户站选择优选的天线波束。 不同天线波束区域中的客户端站在竞争窗口内使用分配的退避时隙来发起其上行链路传输。 接入点选择对应于分配给退避时隙的定向天线波束的优选定向天线波束。

公开(公告)号：WO2007087216A3

公开(公告)日：2007-09-20

申请号：PCT/US2007001294

申请日：2007-01-18

Applicant: INTERDIGITAL TECH CORP ,  SAMMOUR MOHAMMED ,  GRANDHI SUDHEER A

Inventor： SAMMOUR MOHAMMED ,  GRANDHI SUDHEER A

IPC: H04L12/28

CPC classification number: H04W74/0816 ,  H04L67/12 ,  H04W84/12 ,  H04W88/02

Abstract: A method and apparatus are provided for signaling collision avoidance behavior, and in particular deferral and/or backoff behavior, within a communication frame. Preferably, collision avoidance data is explicitly communicated and wireless transmit/receive units (WTRUs) are configured to use such data to generate instructions to control the WTRUs' deferral, backoff and/or other collision avoidance behavior. Instructions generated by the WTRU in this regard may take the form of simply adjusting one or more timing control values used to dictate deferral, backoff and/or other collision avoidance behavior.

Abstract translation: 提供一种用于在通信帧内用于信令冲突避免行为，特别是延迟和/或退避行为的方法和装置。 优选地，明确地传达冲突避免数据，并且将无线发射/接收单元（WTRU）配置为使用这样的数据来生成用于控制WTRU延迟，退避和/或其他避免冲突行为的指令。 在这方面由WTRU生成的指令可以采取简单地调整用于指示延迟，退避和/或其他避免冲突行为的一个或多个定时控制值的形式。

公开(公告)号：WO2007075463A3

公开(公告)日：2007-09-20

申请号：PCT/US2006048008

申请日：2006-12-18

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

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

IPC: H04L27/26

CPC classification number: H04L27/2613 ,  H04B7/2681 ,  H04J11/0069 ,  H04J11/0073 ,  H04L5/0007 ,  H04L5/005 ,  H04L5/0053 ,  H04L5/0064 ,  H04L27/2636 ,  H04L27/2655 ,  H04L27/2656 ,  H04L27/2657 ,  H04L27/2662 ,  H04W48/16 ,  H04W56/00

Abstract: A method for performing cell search in an orthogonal frequency division multiple access (OFDMA) based cellular communication network in which a primary synchronization channel (P-SCH), and optionally a secondary synchronization channel (S-SCH), carries cell search information. A downlink signal is received containing P-SCH symbols. The P-SCH symbols are processed to obtain an initial detection of frame timing, orthogonal frequency division multiplexing (OFDM) symbol timing, a cell identifier (ID), a frequency offset, and a cell transmission bandwidth. Optionally, an OFDM symbol timing self-check and error correction is then performed.

Abstract translation: 一种在基于正交频分多址（OFDMA）的蜂窝通信网络中执行小区搜索的方法，其中主同步信道（P-SCH）和可选地的辅同步信道（S-SCH）携带小区搜索信息。 接收包含P-SCH符号的下行链路信号。 处理P-SCH符号以获得帧定时，正交频分复用（OFDM）符号定时，小区标识符（ID），频率偏移和小区传输带宽的初始检测。 可选地，执行OFDM符号定时自检和纠错。

公开(公告)号：WO2007103443A2

公开(公告)日：2007-09-13

申请号：PCT/US2007005841

申请日：2007-03-06

Applicant: INTERDIGITAL TECH CORP ,  LEUNG HENRY ,  GOLDBERG STEVEN J

Inventor： LEUNG HENRY ,  GOLDBERG STEVEN J

IPC: H04B1/707

CPC classification number: H04B1/69 ,  H04B1/71052 ,  H04B7/0842 ,  H04B7/0854 ,  H04B2201/70702

Abstract: A method and apparatus are provided for separating signals from a received combined signal in a wireless communication system. Combined signals are received by one or more antennas, demodulated and filtered. The combined signals are mixed with known scrambling codes of a target sector and possibly interfering sectors prior to signal separation, by which a separation matrix is created. The separation matrix is used to provide separate desired and interferer signals, such that the desired signals may be despread with known spreading codes for further decoder processing. In an alternate embodiment, the separation matrix is split according to scrambling and spreading code processing to decrease processing complexity. Feedback adjustment control may be used to adjust separation parameters based on generated separation matrices and separated signals.

Abstract translation: 提供了一种用于在无线通信系统中从接收到的组合信号中分离信号的方法和装置。 组合信号由一个或多个天线接收，被解调和滤波。 组合的信号与目标扇区的已知扰码相混合，并且可能在信号分离之前与干扰扇区混合，由此产生分离矩阵。 分离矩阵用于提供单独的期望信号和干扰信号，使得所需信号可以用已知的扩展码进行解扩，用于进一步的解码器处理。 在替代实施例中，根据加扰和扩展码处理分离分离矩阵以降低处理复杂度。 可以使用反馈调整控制来基于产生的分离矩阵和分离的信号来调整分离参数。

公开(公告)号：WO2007103369A2

公开(公告)日：2007-09-13

申请号：PCT/US2007005689

申请日：2007-03-05

Applicant: INTERDIGITAL TECH CORP ,  SHAHEEN KAMEL M

Inventor： SHAHEEN KAMEL M

IPC: H04W36/10 ,  H04W36/12 ,  H04W92/04 ,  H04W92/14

CPC classification number: H04W36/12 ,  H04W36/10 ,  H04W92/045 ,  H04W92/14

Abstract: A single general packet radio service (GPRS) tunneling protocol (GTP) tunnel is established between an evolved Node B (ENB) and an access gateway (AGW) in a long term evolution (LTE) based wireless communication system. When ENB relocation is required, a new mobility management entity (MME)/user plane entity (UPE) sends a relocation request message to a target ENB indicating a tunnel endpoint identity (TEID) of the AGW, the identification number of a wireless transmit/receive unit (WTRU) and the packet data protocol (PDP) address of the WTRU. The new MME/UPE sends an update PDP context request message to the AGW indicating the target ENB TEID. The AGW updates a binding of the target ENB TEID with the WTRU PDP address and the identification number. A new tunnel is established between the target ENB and the AGW, and an old tunnel between the source ENB and the AGW is released. Both inter-location area (LA) and intra-LA handover scenarios are addressed.

Abstract translation: 在基于长期演进（LTE）的无线通信系统中，在演进的节点B（ENB）和接入网关（AGW）之间建立单一的通用分组无线电业务（GPRS）隧道协议（GTP）隧道。 当需要ENB重新定位时，新的移动性管理实体（MME）/用户平面实体（UPE）向指示AGW的隧道端点标识（TEID）的目标ENB发送重定位请求消息，无线发射/ 接收单元（WTRU）和WTRU的分组数据协议（PDP）地址。 新的MME / UPE向AGW发送更新PDP上下文请求消息，指示目标ENB TEID。 AGW更新目标ENB TEID与WTRU PDP地址和标识号的绑定。 目标ENB和AGW之间建立了一条新隧道，并且释放了源ENB和AGW之间的旧隧道。 解决了位置间区域（LA）和LA内切换场景。

公开(公告)号：WO2007084281A3

公开(公告)日：2007-09-13

申请号：PCT/US2007000468

申请日：2007-01-08

Applicant: INTERDIGITAL TECH CORP ,  GRANDHI SUDHEER A ,  CHANDRA ARTY ,  ZEIRA ELDAD M ,  LEVY JOSEPH S

Inventor： GRANDHI SUDHEER A ,  CHANDRA ARTY ,  ZEIRA ELDAD M ,  LEVY JOSEPH S

IPC: H04L12/28 ,  H04L12/56 ,  H04W48/12

CPC classification number: H04W48/12

Abstract: A method and apparatus for distributing beacon information includes a first WTRU modifying a physical layer convergence protocol (PLCP) header in a physical protocol data unit (PHY PDU) frame to include beacon information. The first WTRU transmits the modified PLCP header to a second WTRU. The second WTRU receives the modified PLCP header and extracts beacon information from the modified PLCP header. The second WTRU associates with the first WTRU.

Abstract translation: 用于分发信标信息的方法和设备包括第一WTRU，其修改物理协议数据单元（PHY PDU）帧中的物理层会聚协议（PLCP）报头以包括信标信息。 第一WTRU将修改的PLCP报头发送到第二WTRU。 第二WTRU接收修改的PLCP报头并从修改的PLCP报头中提取信标信息。 第二WTRU与第一WTRU相关联。

公开(公告)号：WO2007015788A3

公开(公告)日：2007-07-19

申请号：PCT/US2006027585

申请日：2006-07-17

Applicant: INTERDIGITAL TECH CORP ,  BULTAN AYKUT ,  PAN JUNG-LIN ,  YANG RUI ,  KEARNEY KENNETH P

Inventor： BULTAN AYKUT ,  PAN JUNG-LIN ,  YANG RUI ,  KEARNEY KENNETH P

IPC: H04B1/00

CPC classification number: H03J7/04

Abstract: A method and apparatus for automatically correcting the frequency of a local oscillator of a receiver. A primary common pilot channel (CPICH) code sequence is generated by a CPICH code generator based on a reference cell identification signal and a frame start signal. The received despread CPICH code sequence is used to generate an estimated frequency error signal. A control voltage generator based on the estimated frequency error signal generates a control voltage signal. The CPICH code generator generates the CPICH code sequence based on signals received from a high speed downlink packet access (HSDPA) serving cell when HSDPA is active, or a timing reference cell when HSDPA is not active. The present invention achieves full maximum ratio combining gain when space-time transmit diversity (STTD) is used, even without receiving a transmit diversity indication.

Abstract translation: 一种自动校正接收机本地振荡器频率的方法和装置。 基于参考小区识别信号和帧起始信号由CPICH码发生器生成主公共导频信道（CPICH）码序列。 所接收的解扩CPICH码序列被用于生成估计的频率误差信号。 基于估计的频率误差信号的控制电压生成器生成控制电压信号。 CPICH码发生器基于HSDPA有效时从高速下行链路分组接入（HSDPA）服务小区接收到的信号或HSDPA未激活时的定时参考小区产生CPICH码序列。 即使没有接收到发射分集指示，当使用空时发射分集（STTD）时，本发明也实现了全部最大比合并增益。

公开(公告)号：WO2006052448A3

公开(公告)日：2007-07-05

申请号：PCT/US2005038491

申请日：2005-10-25

Applicant: INTERDIGITAL TECH CORP ,  PIETRASKI PHILIP J ,  STERNBERG GREGORY S ,  CASTOR DOUGLAS R

Inventor： PIETRASKI PHILIP J ,  STERNBERG GREGORY S ,  CASTOR DOUGLAS R

IPC: H04J3/16 ,  H04W24/00 ,  H04W28/04 ,  H04W28/18 ,  H04W48/08

CPC classification number: H04L1/0026 ,  H04L1/0003 ,  H04L1/0007 ,  H04L1/0009 ,  H04L1/0021 ,  H04L1/1867 ,  H04W24/00 ,  H04W28/18 ,  H04W48/08 ,  H04W52/12 ,  H04W52/20

Abstract: A method and apparatus for adaptively biasing a channel quality indicator (CQI) used for setting a configuration of communication between a transmitter and a receiver in a wireless communication system. The receiver sends a CQI and positive acknowledgement (ACK)/negative acknowledgement (NACK) messages to the transmitter. The ACK/NACK messages indicate the absence or presence of error, respectively, in a transmitted data packet. The CQI is derived from the signal-to-interference ratio (SIR) and the ACK/NACK messages. The transmitter calculates the block error rate (BLER) of the transmitted data packets based upon the ACK/NACK messages sent from the receiver. The transmitter compares the BLER of the transmitted data packets to a target BLER and biases the CQI based on the comparison in order to achieve the target BLER.

Abstract translation: 一种用于在无线通信系统中自适应地偏置用于设置发射机和接收机之间的通信的配置的信道质量指示符（CQI）的方法和装置。 接收机向发射机发送CQI和肯定确认（ACK）/否定确认（NACK）消息。 ACK / NACK消息分别指示在发送的数据分组中不存在或存在错误。 CQI是从信号干扰比（SIR）和ACK / NACK消息导出的。 发射机基于从接收机发送的ACK / NACK消息来计算发送数据分组的块错误率（BLER）。 发送器将发送的数据分组的BLER与目标BLER进行比较，并且基于比较来偏移CQI，以便实现目标BLER。

公开(公告)号：WO2005069878A3

公开(公告)日：2007-06-28

申请号：PCT/US2005000130

申请日：2005-01-04

Applicant: INTERDIGITAL TECH CORP ,  ALI AHMED ,  CUFFARO ANGELO ,  CAVE CHRISTOPHER ,  MARINIER PAUL

Inventor： ALI AHMED ,  CUFFARO ANGELO ,  CAVE CHRISTOPHER ,  MARINIER PAUL

IPC: G06F15/173 ,  H04B7/00 ,  H04L12/56 ,  H04W28/16 ,  H04W28/24

CPC classification number: H04W28/16 ,  H04W28/24

Abstract: In a wireless local area network having an access point (AP) and at least one station, wherein data is prioritized by access categories, a method for admission control begins by calculating a transmission budget (102) for each access category (AC) and a total transmission budget for all ACs requiring admission control. A traffic stream admission request is sent from a station to the AP. A medium time value for the traffic stream is calculated at the AP (108), based on information extracted from the admission request (106). The medium time value is compared to the transmission budget for the AC corresponding to the traffic stream and the total transmission budget. The traffic stream is accepted if the medium time value is not greater than both the transmission budget for the AC corresponding to the traffic stream and the total transmission budget (110); otherwise, the traffÊc stream is rejected (112).

Abstract translation: 在具有接入点（AP）和至少一个站的无线局域网中，其中数据由接入类别确定优先级，用于接纳控制的方法通过计算每个接入类别（AC）的传输预算（102）和 所有AC需要入场控制的总传输预算。 业务流准入请求从站点发送到AP。 基于从准入请求（106）提取的信息，在AP（108）处计算业务流的中等时间值。 将中等时间值与对应于业务流的AC的传输预算和总传输预算进行比较。 如果中等时间值不大于对应于业务流的AC的传输预算和总传输预算（110），则接收业务流; 否则，流量被拒绝（112）。