公开(公告)号：WO2004023249A3

公开(公告)日：2004-07-01

申请号：PCT/US0327506

申请日：2003-09-02

Applicant: INTERDIGITAL TECH CORP

Inventor： SHAHEEN KAMEL M

IPC: H04L12/56 ,  H04L29/06 ,  H04L29/08 ,  H04W8/26 ,  H04W36/00 ,  H04W36/14 ,  H04W80/00 ,  H04W80/04 ,  H04W88/02 ,  G06F15/16 ,  H04Q7/00

CPC classification number: H04W36/0011 ,  H04L67/14 ,  H04W8/26 ,  H04W36/14 ,  H04W36/365 ,  H04W36/38 ,  H04W80/00 ,  H04W80/04 ,  H04W88/02

Abstract: Apparatus and method by which Internet Protocol (IP) traffic can be transferred (i.e. handoff) between two different terminals operating according to two different technology standards in two different systems with two different IP addresses. For example, a session handoff can be made between a terminal in Wireless Local Area Network (WLAN) (19) a terminal in a 3GPP UMTS (25) or between a terminal in CDMA2000 and a terminal in a 3GPP UMTS. These terminals can be either physically separate entities or logical entities that are encapsulated within a common enclosure.

Abstract translation: 可以在具有两个不同IP地址的两个不同系统中根据两种不同技术标准操作的两个不同终端之间传输（即切换）互联网协议（IP）业务的装置和方法。 例如，可以在无线局域网（WLAN）中的终端（19），3GPP UMTS（25）中的终端之间或CDMA2000中的终端与3GPP UMTS中的终端之间进行会话切换。 这些终端可以是物理上分离的实体或封装在公共机箱内的逻辑实体。

公开(公告)号：WO2004047309A2

公开(公告)日：2004-06-03

申请号：PCT/US0336130

申请日：2003-11-14

Applicant: INTERDIGITAL TECH CORP

Inventor： KAZAKEVICH LEONID ,  OZLUTURK FATIH ,  DEMIR ALPASLAN

IPC: H04B7/005 ,  H04B7/08 ,  H04B

CPC classification number: H04B7/0837 ,  H04B7/0871 ,  H04B17/309 ,  H04B17/318 ,  H04W52/42

Abstract: A wireless transmit/receive unit (WTRU) has multiple receivers with an interface to combine received signals to provided enhanced reception. A control unit selectively controls the powering of the receivers to limit power consumption based on selected parameters.

Abstract translation: 无线发射/接收单元（WTRU）具有多个接收机，具有将接收到的信号组合以提供增强的接收的接口。 控制单元选择性地控制接收机的供电以基于所选择的参数来限制功耗。

公开(公告)号：WO2004032528A3

公开(公告)日：2004-06-03

申请号：PCT/US0330331

申请日：2003-09-24

Applicant: INTERDIGITAL TECH CORP

Inventor： ADJAKPLE PASCAL ,  DENNEAN CHARLES ,  RACHA RENUKA ,  WANG CARL

IPC: H04B7/005 ,  H04L1/18 ,  H04L1/20 ,  H04L12/56 ,  H04W24/00 ,  H04W28/04 ,  H04W36/06 ,  H04W52/12 ,  H04W72/08 ,  H04L12/26

CPC classification number: H04W24/00 ,  H04L1/1812 ,  H04L1/20 ,  H04W24/10 ,  H04W36/06 ,  H04W52/12

Abstract: In a wireless communication system using a reference channel used for error rate measurement and associated with a plurality of transport channels multiplexed on a coded composite transport channel (CCTrCH), a method is employed for reselection of the reference channel from favorable candidate transport channels. A channel is initially selected from the plurality of multiplexed channels as the reference channel. Channels are monitored (503) based on quantitative data content criteria to determine whether an ON or OFF state exists. A different channel is selected from the plurality of multiplexed channels as the reselected RTrCH when a better candidate transport channel in the ON state becomes available, or when the monitored RTrCH reflects an OFF state.

Abstract translation: 在使用用于错误率测量并与在复合传输信道（CCTrCH）上复用的多个传输信道相关联的参考信道的无线通信系统中，采用一种方法来从有利的候选传输信道重新选择参考信道。 最初从多个复用信道中选择一个信道作为参考信道。 基于定量数据内容标准来监视（503）通道，以确定是否存在ON或OFF状态。 当在ON状态的更好的候选传输信道变得可用时，或者当被监视的RTrCH反射OFF状态时，从多个多路复用信道中选择不同的信道作为重新选择的RTrCH。

公开(公告)号：WO2004012375A3

公开(公告)日：2004-04-01

申请号：PCT/US0322738

申请日：2003-07-22

Applicant: INTERDIGITAL TECH CORP

Inventor： RUDOLF MARIAN ,  CAVE CHRISTOPHER ,  ZUNIGA JUAN CARLOS

IPC: H04W64/00 ,  H04Q7/20

CPC classification number: H04W64/00 ,  G01S5/12

Abstract: At a first user equipment (UE), an uplink signal of at least one second UE is received and time marked (401). At the first UE, a downlink signal from at least one base station is received and time marked (402). Observed time differences of arrival are determined using the time markings (403). A position of the first UE is determined based on the determined time differences of arrival (404).

Abstract translation: 在第一用户设备（UE）处，接收至少一个第二UE的上行链路信号并且被标记（401）。 在第一UE处，接收来自至少一个基站的下行链路信号并标记时间（402）。 使用时间标记确定观察到的到达时间差（403）。 基于确定的到达时间差确定第一UE的位置（404）。

公开(公告)号：WO2004004188A3

公开(公告)日：2004-03-11

申请号：PCT/US0320037

申请日：2003-06-25

Applicant: INTERDIGITAL TECH CORP

Inventor： CHAO YI-JU

IPC: H04L1/18 ,  H04L12/56 ,  H04Q7/24 ,  H03M13/29 ,  H04L12/28

CPC classification number: H04L47/10 ,  H04L1/1812 ,  H04L1/1887

Abstract: A system and method for avoiding stall of an H-ARQ reordering buffer in a receiver is disclosed. The present invention reduces the latency of the H-ARG reordering buffers within a receiver and uses a Last-In-First-Out (LIFO) policy for loading the transmitting H-ARQ processors. The LIFO loading policy increases the probability that the UE will be able to determine at an earlier time whether the missed TSN is due to delay in retransmission of due the release of a transmission by the Node B by reading the new H-ARQ processor identifier (ID).

Abstract translation: 公开了用于避免H-ARQ重排序缓冲器在接收器中失速的系统和方法。 本发明减少了接收机内H-ARG重排序缓冲器的等待时间，并使用后进先出（LIFO）策略来加载发送H-ARQ处理器。 LIFO加载策略增加了UE将能够在较早时间确定是否由于节点B通过读取新的H-ARQ处理器标识符而释放传输的延迟重传导致的丢失TSN的概率 ID）。

公开(公告)号：WO03077356A2

公开(公告)日：2003-09-18

申请号：PCT/US0306464

申请日：2003-03-04

Applicant: INTERDIGITAL TECH CORP

Inventor： KAZAKEVICH LEONID ,  KLAHN GERARD ,  OZLUTURK FATIH

IPC: H04B7/08 ,  H01Q

CPC classification number: H04B7/0868 ,  H04B7/0811 ,  H04B7/0857

Abstract: Method and apparatus for transfer of signals from multiple antennas down to baseband over a common radio frequency (RF) chain. Antenna selection having greater flexibility and applicability to both uplink and downlink wherein priority is given to the antenna receiving a better quality signal. Measurements are taken during each time slot to determine the weighting to be given to the antenna with the better quality signal. Techniques and apparatus are provided to take measurements over a range of intervals from time slots to single symbols, for example, to select the best signal the techniques described herein may be used individual, and in some cases are combined to receive additional benefits in efficiency.

Abstract translation: 用于通过公共射频（RF）链将信号从多个天线向下传输到基带的方法和装置。 天线选择对于上行链路和下行链路具有更大的灵活性和适用性，其中优先给予接收更好质量信号的天线。 在每个时隙期间进行测量，以确定要以更好的质量信号给予天线的加权。 提供技术和装置以在从时隙到单个符号的间隔范围内进行测量，例如，选择最佳信号，本文所描述的技术可以被单独使用，并且在一些情况下被组合以在效率上接收额外的益处。

公开(公告)号：WO03019844A3

公开(公告)日：2003-05-08

申请号：PCT/US0226941

申请日：2002-08-23

Applicant: INTERDIGITAL TECH CORP

Inventor： KWAK JOSEPH A

IPC: H04L1/16 ,  H04B1/69 ,  H04B7/00 ,  H04B7/155 ,  H04B7/26 ,  H04J11/00 ,  H04L1/00 ,  H04L1/18 ,  H04L1/20 ,  H04L12/54 ,  H04L27/26 ,  H04L29/08 ,  H04W88/08

CPC classification number: H04L1/0034 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/1809 ,  H04L1/1812 ,  H04L1/1822 ,  H04L1/1845 ,  H04L2001/0096 ,  H04W88/08

Abstract: A subscriber unit implementing physical layer automatic repeat request includes a transmitter 12 and a receiver 16. The transmitter has a physical layer transmitter 12a an acknowledge receiver 12b for receiving the corresponding acknowledgment and an adaptive modulation and coding controller 12c for collecting retransmission statistics and adjusting the particular data encoding/modulation using the collected statistics. The receiver 16 has a physical layer receiver 16a, and an acknowledgment generator 16c for generating an acknowledgment for each packet if that packet has an acceptable error rate.

Abstract translation: 实现物理层自动重传请求的用户单元包括发射机12和接收机16.发射机具有物理层发射机12a，用于接收相应确认的确认接收机12b和用于收集重传统计数据并调整 使用收集的统计数据进行特定的数据编码/调制。 接收机16具有物理层接收器16a和用于如果该分组具有可接受的错误率则为每个分组生成确认的确认发生器16c。

公开(公告)号：WO0251048A3

公开(公告)日：2003-04-17

申请号：PCT/US0148915

申请日：2001-12-13

Applicant: INTERDIGITAL TECH CORP

Inventor： DICK STEPHEN G ,  IACONO ANA LUCIA ,  STERN-BERKOWITZ JANET

IPC: H04B7/26 ,  H04J1/00 ,  H04L5/22 ,  H04L12/56 ,  H04W74/04 ,  H04W74/08

CPC classification number: H04B7/2637 ,  H04B7/2618 ,  H04B7/2653 ,  H04W74/0866 ,  H04W74/0891

Abstract: Sub-channels are defined for a physical random access channel of a wireless time division duplex communication system using code division multiple access. The sub-channels carry information between system users and a system network. A series of radio frames have a sequence of timeslots. For a particular timeslot number of the sequence, each sub-channel of the particular timeslot number is uniquely defined by one radio frame of the series.

Abstract translation: 子信道被定义为使用码分多址的无线时分双工通信系统的物理随机接入信道。 子通道在系统用户和系统网络之间携带信息。 一系列无线电帧具有一系列时隙。 对于序列的特定时隙号，特定时隙号的每个子信道由该系列的一个无线电帧唯一地定义。

公开(公告)号：WO0239610A3

公开(公告)日：2003-03-13

申请号：PCT/US0146747

申请日：2001-11-08

Applicant: INTERDIGITAL TECH CORP

Inventor： DE PARTHAPRATIM ,  ZEIRA ARIELA ,  PAN JUNG-LIN ,  MISRA RAJ MANI

IPC: H04B1/7077 ,  H04B1/707 ,  H04B1/7103 ,  H04B1/7105 ,  H04Q7/38

CPC classification number: H04B1/7105 ,  H04B1/71052 ,  H04B2201/70707 ,  H04L25/0212

Abstract: A transmitter site transmit a plurality of data signals over a shared spectrum in a code division multiple access communication system. Each transmitted data signal experiences a similar channel response. A combined signal of the transmitted data signals is received. The combined signal is sampled at a multiple of the chip rate. The channel response for the combined signal is determined. A first element of a spread data vector is determined using the combined signal samples and the estimated channel response. Using a factor from the first element determination, remaining elements of the spread data vector are determined. The data of the data signals is determined using the determined elements of the spread data vector.

Abstract translation: 发射机站在码分多址通信系统中通过共享频谱发送多个数据信号。 每个发送的数据信号经历类似的信道响应。 接收发送的数据信号的组合信号。 组合信号以芯片速率的倍数进行采样。 确定组合信号的信道响应。 使用组合的信号样本和估计的信道响应来确定扩展数据向量的第一元素。 使用来自第一元素确定的因子，确定扩展数据向量的剩余元素。 使用所确定的扩展数据矢量的元素来确定数据信号的数据。

公开(公告)号：WO0232018A3

公开(公告)日：2002-08-29

申请号：PCT/US0131612

申请日：2001-10-10

Applicant: INTERDIGITAL TECH CORP

Inventor： OLESEN ROBERT L ,  AXNESS TIMOTHY A ,  KAZAKEVICH LEONID

IPC: H04L5/16 ,  H03G3/20 ,  H03M1/18 ,  H04B1/16 ,  H04B1/707 ,  H04B7/005 ,  H04B17/00 ,  H04J3/00 ,  H04L5/14 ,  H04B7/26

CPC classification number: H04W52/52 ,  H03G3/3078 ,  H03M1/185 ,  H04B17/318 ,  H04L5/1484

Abstract: A method and system for automatic gain control (AGC) in a TDD communication system, wherein each time slot of the communication signal contains a preamble in binary phase shift keying (BPSK) format, located at the beginning of the time slot. The channel estimation by the receiver is improved since the preamble allows AGC to quickly estimate the signal strength and adjust the gain accordingly. This permits all data symbols within the data burst, which follows the preamble, to be correctly received, and results in a midamble channel estimate that is much more accurate. It also allows the AGC circuit within the TDD receiver to be greatly simplified.

Abstract translation: 一种用于TDD通信系统中的自动增益控制（AGC）的方法和系统，其中通信信号的每个时隙包含位于时隙开头的二进制相移键控（BPSK）格式的前导码。 由于前同步码允许AGC快速估计信号强度并相应地调整增益，所以改善了接收机的信道估计。 这允许正确地接收跟随前导码的数据突发内的所有数据符号，并且导致更准确的中间码信道估计。 它还允许TDD接收机内的AGC电路大大简化。