公开(公告)号：WO2004023704A3

公开(公告)日：2004-09-23

申请号：PCT/US0328163

申请日：2003-09-09

Applicant: INTERDIGITAL TECH CORP

Inventor： PAN JUNG-LIN ,  HUANG YUEJIN ,  ZEIRA ARIELA

IPC: H04B1/707 ,  H04B7/005 ,  H04L25/03 ,  H04B7/216

CPC classification number: H04B1/71052 ,  H04L25/03159 ,  H04L2025/03414 ,  H04L2025/03522 ,  H04L2025/03605

Abstract: A method of data estimation for a Time Division Duplex (TDD) Code Division Multiple Access (CDMA) system or any other system using an extended algorithm (EA) in preference to a truncated algorithm (TA). The EA avoids implementation errors by choice of proper extended matrices, and accepts the use of one piece of hardware. The EA also obviates loss of multiple signals in the tail part of each data field (215), and avoids errors due to transformation of a Toeplitz matrix to a circulant matrix.

Abstract translation: 一种用于时分双工（TDD）码分多址（CDMA）系统或使用优先于截断算法（TA）的扩展算法（EA）的任何其他系统的数据估计方法。 EA通过选择适当的扩展矩阵来避免实现错误，并接受使用一块硬件。 EA还消除了每个数据字段（215）的尾部中的多个信号的丢失，并且避免了由于Toeplitz矩阵向循环矩阵的转换而导致的错误。

公开(公告)号：WO02093757A2

公开(公告)日：2002-11-21

申请号：PCT/US0215242

申请日：2002-05-14

Applicant: INTERDIGITAL TECH CORP

Inventor： TERRY STEPHEN E ,  DICK STEPHEN G ,  MILLER JAMES M ,  ZEIRA ELDAD ,  ZEIRA ARIELA

IPC: H04B7/005 ,  H04B7/26 ,  H04L1/00 ,  H04L1/20 ,  H04L12/56 ,  H04W16/14 ,  H04W24/00 ,  H04W52/00 ,  H04W52/24 ,  H04W72/04 ,  H04W72/08 ,  H04B

CPC classification number: H04W72/085 ,  H04B7/0632 ,  H04B17/327 ,  H04B17/382 ,  H04L1/0001 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/0028 ,  H04L1/20 ,  H04W24/10 ,  H04W52/24 ,  H04W72/0413

Abstract: In a wireless digital communication system which may employ CDMA technology, a method (50) and system for obtaining channel quality (CQ) measurements for downlink resource allocation wherein a User Equipment (UE) (12) continuously measures RSCP (step) based on a communication on a reference channel provided by the network. The UE (12) measures timeslot ISCP (step 56) either continuously, by configuration or by rotation and reports downlink CQ (step 58). The UE (12) may report the RSCP once and the ISCP per timeslot, or may report some function of the RSCP/ISCP ratio such as modulation parameters or combined coding of all timeslots.

Abstract translation: 在可以采用CDMA技术的无线数字通信系统中，一种用于获得用于下行链路资源分配的信道质量（CQ）测量的方法（50）和系统，其中用户设备（UE）（12）基于 在网络提供的参考信道上进行通信。 UE（12）通过配置或轮播连续地测量时隙ISCP（步骤56）并报告下行链路CQ（步骤58）。 UE（12）可以每时隙报告RSCP一次和ISCP，或者可以报告RSCP / ISCP比率的一些功能，例如调制参数或所有时隙的组合编码。

公开(公告)号：WO2006052423A3

公开(公告)日：2006-10-19

申请号：PCT/US2005037998

申请日：2005-10-20

Applicant: INTERDIGITAL TECH CORP ,  KWAK JAEYOUNG ,  GRIECO DONALD M ,  PAN JUNG-LIN ,  ZEIRA ARIELA

Inventor： KWAK JAEYOUNG ,  GRIECO DONALD M ,  PAN JUNG-LIN ,  ZEIRA ARIELA

IPC: H04B7/216 ,  H03D1/04 ,  H04J3/00 ,  H04L1/00

CPC classification number: H04B1/7103 ,  H04B1/70735 ,  H04B17/327 ,  H04B2201/70701

Abstract: A method and apparatus for estimating channelization codes in a wireless transmit/receive unit (WTRU) using blind code detection (BCD). A WTRU receives communication bursts and detects a midamble [302] in the received burst. A candidate code list [304] is generated in accordance with the detected midamble. The candidate code list includes channelization codes intended for both the intended WTRU and other WTRUs [304]. Active channelization codes among the codes in the candidate list are identified, and the identified codes are forward to a multi-user detector (MUD) [308], The present invention resolves SF ambiguity in the download of TSM. Since the orthogonal variable spreading factor code maintains the orthogonal between codes of different SF, SFs of other WTRUs follow the SF of the inteneded WTRU. Moreover, since the data for other WTRUs is not used in symbol processing after MUD, the performance of MUD of the intended WTRU is preserved with the SF ambiguity of othter WTRUs.

Abstract translation: 一种使用盲码检测（BCD）估计无线发射/接收单元（WTRU）中的信道化码的方法和装置。 WTRU接收通信突发并检测接收到的突发中的中继码[302]。 根据检测到的中间码产生候选码列表[304]。 候选码表包括旨在用于预期的WTRU和其他WTRU的信道化码[304]。 识别候选列表中的代码之间的主动信道化代码，并将所识别的代码转发到多用户检测器（MUD）[308]。本发明解决了TSM下载中的SF模糊性。 由于正交可变扩频因子码维持不同SF的码之间的正交，所以其他WTRU的SF遵循被介入的WTRU的SF。 此外，由于在MUD之后的符号处理中没有使用其他WTRU的数据，所以预期的WTRU的MUD的性能被保留在具有少量WTRU的SF模糊度上。

公开(公告)号：WO02075963A9

公开(公告)日：2003-06-19

申请号：PCT/US0151429

申请日：2001-07-20

Applicant: INTERDIGITAL TECH CORP

Inventor： PAN JUNG-LIN ,  ZEIRA ARIELA

IPC: H04B7/26 ,  H04B17/40 ,  H04J3/00 ,  H04J13/00 ,  H04Q7/36

CPC classification number: H04W72/0446 ,  H04B7/2618 ,  H04L5/0073 ,  H04L5/14 ,  H04W52/143 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/082 ,  H04W72/1268 ,  H04W72/1273

Abstract: A particular cell of a hybrid time division multiple access/code division multiple access communication system has a base station and a plurality of user requirement. Timeslots having unacceptable interference for the uplink are estimated. Timeslots having unacceptable interference for the downlink are estimated. An availability list is produced. The availability list indicates available uplink and downlink timeslots having acceptable interference levels. Uplink and downlink timeslots are assigned using the availability list.

Abstract translation: 混合时分多址/码分多址通信系统的特定小区具有基站和多个用户要求。 估计对上行链路具有不可接受的干扰的时隙。 估计对下行链路具有不可接受的干扰的时隙。 产生可用性列表。 可用性列表指示具有可接受干扰水平的可用上行链路和下行链路时隙。 上行链路和下行链路时隙使用可用性列表分配。

公开(公告)号：WO02063779A3

公开(公告)日：2002-11-28

申请号：PCT/US0202400

申请日：2002-01-28

Applicant: INTERDIGITAL TECH CORP

Inventor： PAN JUNG-LIN ,  DE PARTHAPRATIM ,  ZEIRA ARIELA

IPC: H04B1/707 ,  H04B1/7097 ,  H04B7/204 ,  H04L5/22 ,  H04Q7/38

CPC classification number: H04B1/71052 ,  H04B1/71055

Abstract: A combined signal is received over a shared spectrum in a time slot in a time division duplex communication system using code division multiple access. Each data signal experiences a similar channel response. The similar channel response is estimated. A matrix representing a channel of the data signals based on in part the estimated channel response is constructed. A spread data vector is determined based on in part a fast fourier transform (FFT) decomposition of a circulant version of the channel matrix. The spread data vector is despread to recover data from the received combined signal.

Abstract translation: 在使用码分多址的时分双工通信系统的时隙中，通过共享频谱接收组合信号。 每个数据信号经历类似的信道响应。 估计类似的信道响应。 基于部分估计的信道响应，构成表示数据信号的信道的矩阵。 部分地基于信道矩阵的循环版本的快速傅里叶变换（FFT）分解来确定扩展数据向量。 扩展数据向量被解扩以从接收到的组合信号中恢复数据。

公开(公告)号：WO0247278A2

公开(公告)日：2002-06-13

申请号：PCT/US0146603

申请日：2001-12-05

Applicant: INTERDIGITAL TECH CORP

Inventor： KIM YOUNGLOK ,  ZEIRA ARIELA

IPC: H04B1/00 ,  H04B1/707 ,  H04B7/06 ,  H04B7/26 ,  H04L1/06 ,  H04L25/02 ,  H04Q7/38 ,  H04B

CPC classification number: H04B1/707 ,  H04B7/0697 ,  H04L1/0618 ,  H04L1/0631 ,  H04L25/0202 ,  H04L25/03866

Abstract: The present invention is a system and method for use in a CDMA communication system including a plurality of base stations and a user equipment (UE), each for communicating with each other. The base station has a transmitter which includes a first and second antenna for transmitting a data field of symbols. The first spreading device spreads the first data field using a first channelization code and the second spreading device spreads the second data field using a second channelization code, each channelization code being uniquely associated with one of the first and second antennas. The UE has a receiver for receiving a signal including the first and second spread data fields. The UE includes a joint detection device for detecting the symbols of the first and second data fields using the first and second channelization codes and a decoder for decoding the detected data fields to generate a single data field of symbols.

Abstract translation: 本发明是一种用于包括多个基站和用户设备（UE）的CDMA通信系统中的系统和方法，每个系统和方法用于相互通信。 该基站具有发射机，该发射机包括用于发射符号的数据字段的第一和第二天线。 第一扩频装置使用第一信道化码扩展第一数据字段，第二扩频装置使用第二信道化码扩展第二数据字段，每个信道化码与第一和第二天线中的一个唯一关联。 UE具有用于接收包括第一和第二扩展数据字段的信号的接收器。 UE包括联合检测设备，用于使用第一和第二信道化码检测第一和第二数据字段的符号;以及解码器，用于解码检测到的数据字段以生成单个数据字段的符号。

公开(公告)号：WO2005004338A2

公开(公告)日：2005-01-13

申请号：PCT/US2004020427

申请日：2004-06-24

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

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

IPC: H03D1/04 ,  H04B20060101 ,  H04B1/707 ,  H04L25/03 ,  H04B

CPC classification number: H04L25/03305 ,  H04B1/71055 ,  H04L25/03331 ,  H04L25/03993

Abstract: The present invention has many aspects. One aspect of the invention is to perform equalization using a sliding window approach. A second aspect reuses information derived for each window for use by a subsequent window. A third aspect utilizes a discrete Fourier transform based approach for the equalization. A fourth aspect relates to handling oversampling of the received signals and channel responses. A fifth aspect relates to handling multiple reception antennas. A sixth embodiment relates to handling both oversampling and multiple reception antennas.

Abstract translation: 本发明具有许多方面。 本发明的一个方面是使用滑动窗口方法进行均衡。 第二个方面重用为每个窗口导出的信息，供后续窗口使用。 第三方面利用基于离散傅立叶变换的均衡方法。 第四方面涉及处理接收信号和信道响应的过采样。 第五方面涉及处理多个接收天线。 第六实施例涉及处理过采样和多个接收天线。

公开(公告)号：WO0184740A8

公开(公告)日：2004-05-13

申请号：PCT/US0113720

申请日：2001-04-30

Applicant: INTERDIGITAL TECH CORP

Inventor： ZEIRA ELDAD ,  TERRY STEPHEN E ,  ZEIRA ARIELA

IPC: H04L1/00 ,  H04B1/69 ,  H04B7/005 ,  H04B7/26 ,  H04J3/00 ,  H04W52/10 ,  H04W52/14 ,  H04W52/18 ,  H04W52/20 ,  H04W52/24

CPC classification number: H04J3/1694 ,  H04B1/69 ,  H04B17/24 ,  H04B17/345 ,  H04W52/08 ,  H04W52/10 ,  H04W52/12 ,  H04W52/143 ,  H04W52/20 ,  H04W52/241 ,  H04W52/243 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/0473 ,  H04W72/082

Abstract: The present invention is a method and system for controlling downlink transmission power levels in a spread spectrum time division communications system having frames with time slots for communication, which receives at a user equipment (UE) a downlink communication from a base station and determines an error rate of the received communication. The UE then produces power level adjustments for each of the time slots based in part on the error rate and transmits an uplink communication to the base station which includes the power level. In response to the power level adjustments and(or) other information, transmission power level is set for each time slot in the downlink communication.

Abstract translation: 本发明是一种用于控制具有用于通信的时隙的帧的扩展频谱时分通信系统中的下行链路传输功率电平的方法和系统，其在用户设备（UE）处从基站接收下行链路通信并确定错误 接收到的通信速率。 然后，UE部分地基于错误率产生每个时隙的功率电平调整，并向包括功率电平的基站发送上行链路通信。 响应于功率电平调整和（或）其他信息，针对下行链路通信中的每个时隙设置发送功率电平。

公开(公告)号：WO03069824A2

公开(公告)日：2003-08-21

申请号：PCT/US0304251

申请日：2003-02-11

Applicant: INTERDIGITAL TECH CORP

Inventor： TERRY STEPHEN E ,  BOLOURCHI NADER ,  ZEIRA ARIELA

IPC: H04B7/155 ,  H04B7/26 ,  H04L1/00 ,  H04L1/18 ,  H04L27/26 ,  H04L

CPC classification number: H04L1/0003 ,  H04L1/0009 ,  H04L1/1812 ,  H04L1/1822 ,  H04L1/1845 ,  H04L1/1893 ,  H04L5/0055 ,  H04L27/2608 ,  H04W72/04 ,  H04W72/0413 ,  H04W72/042

Abstract: Data of a time transmission interval is to be transmitted in a wireless communication system. The wireless communication system uses adaptive modulation and coding and has automatic repeat request mechanism. A transmission time interval has a plurality of transport block sets. The transport block sets are transmitted with a first specified modulation and coding scheme. Each transport block set is received and a determination is made as to whether the transport block sets meet a specified quality. When the specified quality is not met, a repeat request is transmitted. The specified modulation and coding scheme is changed to a second specified modulation and coding scheme that may support a reduced number of TBS's within the transmission time interval. In response to the repeat request, at least one of the transport block sets is retransmitted. The retransmitted transport block set is received. The retransmitted transport block set may be combined with a corresponding previously received transport block set.

Abstract translation: 在无线通信系统中发送时间传输间隔的数据。 无线通信系统采用自适应调制编码，具有自动重传请求机制。 传输时间间隔具有多个传输块集合。 以第一规定的调制和编码方案发送传输块集合。 接收每个传输块集合，并且确定传输块集合是否满足指定的质量。 当不满足指定的质量时，会发送重复请求。 指定的调制和编码方案被改变为可以在传输时间间隔内支持减少数量的TBS的第二规定调制和编码方案。 响应于重复请求，重发传输块集中的至少一个。 接收重传的传输块集合。 重传的传输块集可以与相应的先前接收的传输块组合。

公开(公告)号：WO0158041A9

公开(公告)日：2002-10-31

申请号：PCT/US0103380

申请日：2001-02-02

Applicant: INTERDIGITAL TECH CORP

Inventor： ZEIRA ARIELA ,  ZEIRA ELDAD ,  REZNIK ALEXANDER ,  TERRY STEPHEN E

IPC: H04B1/707 ,  H04B1/7073 ,  H04B1/7093 ,  H04B1/7103 ,  H04B1/7105 ,  H04B7/00 ,  H04J3/00 ,  H04J11/00 ,  H04J13/00 ,  H04J13/16 ,  H04Q7/38

CPC classification number: H04B1/7103 ,  H04B1/707 ,  H04B1/70735 ,  H04B1/7105 ,  H04B2001/70935 ,  H04B2201/70701 ,  H04B2201/70709 ,  H04J13/00 ,  H04J13/16

Abstract: A wireless time division duplex communication system using code division multiple access has a base station and user equipments. The system communicates using communication bursts. Each communication burst has a unique channelization code and a midamble code. Each midamble code is mapped to a set of at least one channelization code. For each communication burst to be transmitted in a time slot from the base station, the midamble code mapped to that burst's channelization code is determined. Communication bursts are generated and transmitted in the time slot. Each burst has the determined midamble code for its channelization code. The user equipment receives the bursts and determines each received midamble code. The user equipment determines the channelization codes of the transmitted communication bursts based on in part a result of the determining of each received midamble code.

Abstract translation: 使用码分多址的无线时分双工通信系统具有基站和用户设备。 系统使用通信突发进行通信。 每个通信突发具有唯一的信道化码和中间码。 每个中间码代码被映射到一组至少一个信道化码。 对于要在基站的时隙中发送的每个通信突发，确定映射到该突发的信道化码的中间码。 在时隙中生成和发送通信突发。 每个突发具有确定的其信道化码的中间码代码。 用户设备接收突发并确定每个接收到的中间码。 用户设备部分地基于确定每个接收到的中间码的结果来确定所发送的通信脉冲串的信道化码。