公开(公告)号：US20020126619A1

公开(公告)日：2002-09-12

申请号：US10080125

申请日：2002-02-21

Applicant: InterDigital Technology Corporation

Inventor： Parthapratim De ,  Ariela Zeira ,  Jung-Lin Pan ,  Raj Mani Misra

IPC: H04J011/00 ,  H04B007/216

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

Abstract: A code division multiple access user equipment is used in receiving a plurality of data signals over a shared spectrum. Each received data signal experiences a similar channel response. A combined signal of the received data signals is received over the shared spectrum. The combined signal is sampled at a multiple of the chip rate. A channel response is estimated. A column of a channel correlation matrix is determined using the estimated channel response. A spread data vector is determined using the determined column, the estimated channel response, the received combined signal and a fourier transform. Data of the data signals is estimated using the spread data vector.

Abstract translation: 码分多址用户设备用于在共享频谱上接收多个数据信号。 每个接收的数据信号经历类似的信道响应。 接收的数据信号的组合信号通过共享频谱接收。 组合信号以芯片速率的倍数进行采样。 估计频道响应。 使用估计的信道响应来确定信道相关矩阵的列。 使用确定的列，估计的信道响应，接收的组合信号和傅里叶变换来确定扩展数据向量。 使用扩展数据向量来估计数据信号的数据。

公开(公告)号：US20020110099A1

公开(公告)日：2002-08-15

申请号：US10090498

申请日：2002-03-04

Applicant: InterDigital Technology Corporation

Inventor： Ariela Zeira ,  Eldad Zeira ,  Alexander Reznik ,  Stephen E. Terry

IPC: H04B007/216

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

Abstract: A method of using a user equipment (UE) in a wireless time division duplex communication system. The system uses code division multiple access and communicates using communication bursts. Each communication burst has a unique channelization code and a midamble code which is uniquely related to the channelization code, each such midamble code being uniquely related to one or more channelization code. The UE receives communication bursts and detects each midamble code in a received communication burst. The UE determines the channelization codes related to each detected midamble based on a mapping of midamble codes to related channelization codes. The UE detects channelization codes in the received communication burst from among the determined channelization codes. The UE recovers data from the received communication burst based on in part the detected channelization codes. Where all midamble codes are uniquely related to one channelization code, the UE recovers data from the received communication burst based on in part the determined channelization codes without the additional channelization code detection step.

Abstract translation: 一种在无线时分双工通信系统中使用用户设备（UE）的方法。 该系统使用码分多址，并使用通信脉冲进行通信。 每个通信突发具有唯一的信道化码和与信道化码唯一相关的中间码，每个这样的中间码与唯一的一个或多个信道化码有关。 UE接收通信突发并检测接收到的通信突发中的每个中间码。 UE根据中间码编码与相关信道化码的映射，确定与每个检测到的中间码相关的信道化码。 UE从确定的信道化码中检测接收到的通信突发中的信道化码。 基于部分检测到的信道化码，UE从接收到的通信脉冲串中恢复数据。 在所有中间码编码与一个信道化码唯一相关的情况下，UE部分地基于所确定的信道化码，而不用附加的信道化码检测步骤，从接收到的通信脉冲串中恢复数据。

公开(公告)号：US20020097698A1

公开(公告)日：2002-07-25

申请号：US10090372

申请日：2002-03-04

Applicant: InterDigital Technology Corporation

Inventor： Ariela Zeira ,  Eldad Zeira ,  Alexander Reznik ,  Stephen E. Terry

IPC: H04Q007/00 ,  H04B007/216

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

Abstract: A user equipment (UE) for a wireless time division duplex communication system which uses code division multiple access. The system communicates using communication bursts, each communication burst having a unique channelization code and a midamble code which is uniquely related to the channelization code. Each such midamble code being uniquely related to one or more channelization code. The UE has an antenna for receiving communication bursts and a midamble detector which detects each midamble code in a received communication burst. A logic block determines the channelization codes related to each detected midamble based on a mapping of midamble codes to related channelization codes. A channelization code detector detects channelization codes in the received communication burst from among channelization codes determined by said logic block. A multiuser detection device recovers data from the received communication burst based on in part the channelization codes detected by said channelization code detector. Where all midamble codes are uniquely related to one channelization code, the multiuser detection device recovers data from the received communication burst based on in part the determined channelization codes without the need for the channelization code detector.

Abstract translation: 一种用于无线时分双工通信系统的用户设备（UE），其使用码分多址。 该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与信道化码唯一相关的中间码。 每个这样的中间码代码与一个或多个信道化代码唯一相关。 UE具有用于接收通信突发的天线和在接收的通信突发中检测每个中间码的中置码检测器。 逻辑块基于中间码编码与相关信道化码的映射来确定与每个检测到的中间码相关的信道化码。 信道化码检测器从由所述逻辑块确定的信道化码中检测接收到的通信脉冲串中的信道化码。 多用户检测装置部分地基于由所述信道化码检测器检测到的信道化码，从接收的通信脉冲串中恢复数据。 在所有中间码编码与一个信道化码唯一相关的情况下，多用户检测装置部分地基于所确定的信道化码而不需要信道化码检测器从接收到的通信脉冲串中恢复数据。

公开(公告)号：US20020093927A1

公开(公告)日：2002-07-18

申请号：US10071903

申请日：2002-02-08

Applicant: InterDigital Technology Corporation

Inventor： Younglok Kim ,  Ariela Zeira

IPC: H04B007/216

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

Abstract: The present invention is a method and apparatus for a base station to transmit a data field of symbols. A first data field of symbols is generated and encoded to produce a second data field having complex conjugates of the symbols of the data field. The first and second data fields are then spread, wherein the first data field is spread using a first channelization code and the second data field is spread using a second channelization code. Each of the channelization codes are uniquely associated with one of a first and second antenna. An RF signal including the first and second spread data fields is then transmitted over a first and second antenna.

Abstract translation: 本发明是用于基站发送符号数据字段的方法和装置。 生成并编码符号的第一数据字段以产生具有数据字段的符号的复共轭的第二数据字段。 然后扩展第一和第二数据字段，其中使用第一信道化码扩展第一数据字段，并且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之一唯一地相关联。 然后，通过第一和第二天线发射包括第一和第二扩展数据字段的RF信号。

公开(公告)号：US20020080766A1

公开(公告)日：2002-06-27

申请号：US10083212

申请日：2002-02-26

Applicant: InterDigital Technology Corporation

Inventor： Ariela Zeira ,  Sung-Hyuk Shin

IPC: H04B001/707

CPC classification number: H04W52/10 ,  H04B2201/709709 ,  H04W52/24 ,  H04W52/242 ,  H04W52/246 ,  H04W52/248

Abstract: The method employing weighted open loop power control in a base station is initiated by the base station receiving a communication and measuring its received power level. Based on, in part, the received communication's power level and the communication's transmission power level, a path loss estimate is determined. A quality of the path loss estimate is also determined. The transmission power level for a communication from the base station is based, in part, on weighting the path loss estimate in response to the quality of the estimate.

Abstract translation: 在基站中采用加权开环功率控制的方法由基站接收通信并测量其接收功率电平来启动。 基于部分接收的通信的功率电平和通信的发送功率电平，确定路径损耗估计。 路径损耗估计的质量也被确定。 来自基站的通信的发射功率电平部分地基于响应于估计的质量对路径损耗估计进行加权。

公开(公告)号：US20020080764A1

公开(公告)日：2002-06-27

申请号：US10080482

申请日：2002-02-22

Applicant: InterDigital Technology Corporation

Inventor： Ariela Zeira ,  Sung-Hyuk Shin ,  Steven G. Dick

IPC: H04B007/185

CPC classification number: H04W52/225 ,  H04W52/12 ,  H04W52/24

Abstract: An outer loop/weighted open loop power control method controls transmission power levels in a spread spectrum time division duplex communication user equipment (UE). The user equipment receives a communication including an transmitted power level and measures its received power level. Based in part on the measured power level and the transmitted power level, a path loss estimate is determined. A quality of the path loss estimate is also determined. The transmission power level for a communication from the user equipment is based on in part weighting the path loss estimate in response to the estimate's quality.

Abstract translation: 外环/加权开环功率控制方法控制扩频时分双工通信用户设备（UE）中的发射功率电平。 用户设备接收包括发射功率电平的通信并测量其接收功率电平。 部分地基于测量的功率电平和发射功率电平，确定路径损耗估计。 路径损耗估计的质量也被确定。 来自用户设备的通信的发射功率电平部分地基于估计的质量部分地加权路径损耗估计。

公开(公告)号：US20020080746A1

公开(公告)日：2002-06-27

申请号：US10079107

申请日：2002-02-20

Applicant: InterDigital Technology Corporation

Inventor： Younglok Kim ,  Ariela Zeira

IPC: H04B007/216

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

Abstract: The present invention is a method for transmitting a data field of symbols. A first data field of symbols is generated and encoded to produce a second data field having complex conjugates of the symbols of the data field. The first and second data fields are then spread, wherein the first data field is spread using a first channelization code and the second data field is spread using a second channelization code. Each of the channelization codes are uniquely associated with one of a first and second antenna. An RF signal including the first and second spread data fields is then transmitted over a first and second antenna.

Abstract translation: 本发明是用于发送符号数据字段的方法。 生成并编码符号的第一数据字段以产生具有数据字段的符号的复共轭的第二数据字段。 然后扩展第一和第二数据字段，其中使用第一信道化码扩展第一数据字段，并且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之一唯一地相关联。 然后，通过第一和第二天线发射包括第一和第二扩展数据字段的RF信号。

公开(公告)号：US20020075939A1

公开(公告)日：2002-06-20

申请号：US10080759

申请日：2002-02-22

Applicant: InterDigital Technology Corporation

Inventor： Ariela Zeira ,  Sung-Hyuk Shin ,  Steven G. Dick

IPC: H04B001/69

CPC classification number: H04W52/225 ,  H04W52/12 ,  H04W52/24

Abstract: Outer loop/weighted open loop power control apparatus controls transmission power levels in a spread spectrum time division duplex communication base station. The base station receives a communication including a transmitted power level and measures its received power level. Based in part on the measured power level and the transmitted power level, a path loss estimate is determined. A quality of the path loss estimate is also determined. The transmission power level for a communication from the base station is based in part on weighting the path loss estimate in response to the estimate's quality.

Abstract translation: 外环/加权开环功率控制装置控制扩频时分双工通信基站中的发射功率电平。 基站接收包括发射功率电平的通信并测量其接收功率电平。 部分地基于测量的功率电平和发射功率电平，确定路径损耗估计。 路径损耗估计的质量也被确定。 来自基站的通信的发射功率电平部分地基于响应于估计的质量对路径损耗估计进行加权。

公开(公告)号：US20020003782A1

公开(公告)日：2002-01-10

申请号：US09901289

申请日：2001-07-09

Applicant: InterDigital Technology Corporation

Inventor： Jung-Lin Pan ,  Ariela Zeira

IPC: H04B007/216 ,  H04J003/00

CPC classification number: H04W72/082 ,  H04B1/7103 ,  H04B2201/709709 ,  H04J13/16 ,  H04W16/14 ,  H04W24/10 ,  H04W52/0216 ,  H04W52/0219 ,  H04W72/0446 ,  H04W72/0466 ,  H04W74/04 ,  Y02D70/1242 ,  Y02D70/40

Abstract: Resource units are assigned within a cell of a wireless time division duplex communication system using code division multiple access. Each resource units is associated with a time slot and a code. For selected ones of the cell's resource units, the code interference level is measured during that unit's time slot and using that unit's code. The code interference level is compared to a threshold to determine whether that unit has an acceptable code interference level. Resource units are assigned to communications out of the unit's having acceptable interference levels.

Abstract translation: 在使用码分多址的无线时分双工通信系统的小区内分配资源单元。 每个资源单元与时隙和代码相关联。 对于单元格的资源单元中选定的单元的资源单元，在该单元的时隙中测量代码干扰级别，并使用该单元的代码。 将码干扰电平与阈值进行比较，以确定该单元是否具有可接受的码干扰电平。 资源单位被分配给具有可接受干扰水平的设备中的通信。