公开(公告)号：US20040120282A1

公开(公告)日：2004-06-24

申请号：US10462489

申请日：2003-06-16

Applicant: InterDigital Technology Corporation

Inventor： Faith M. Ozluturk ,  Nadir Sezgin

IPC: H04Q007/00

CPC classification number: H04B1/7103 ,  H04B1/7097 ,  H04B1/7107 ,  H04B1/71075 ,  H04B2201/70701

Abstract: A mobile user receiver having a cancellation system for removing selected signals from a traffic signal prior to decoding includes a receiver having a system input for receiving communication signals from a transmitter over an air interface. The system input is supplied to a traffic signal cancellation system for canceling unwanted traffic signals. The system input is also supplied to a pilot signal cancellation system for removing a global pilot signal. The output of the pilot signal cancellation system is subtracted from the output of the traffic signal cancellation system to provide a cancellation system output free from unwanted traffic signals and the global pilot signal.

Abstract translation: 具有用于在解码之前从业务信号中去除所选信号的消除系统的移动用户接收机包括具有用于通过空中接口从发射机接收通信信号的系统输入的接收机。 系统输入被提供给交通信号消除系统以消除不期望的交通信号。 系统输入也被提供给用于去除全局导频信号的导频信号消除系统。 从业务信号消除系统的输出中减去导频信号消除系统的输出，以提供没有不想要的业务信号和全局导频信号的消​​除系统输出。

公开(公告)号：US20030035404A1

公开(公告)日：2003-02-20

申请号：US10266408

申请日：2002-10-08

Applicant: InterDigital Technology Corporation

Inventor： Fatih M. Ozluturk ,  Nadir Sezgin

IPC: H04B007/216

CPC classification number: H04B1/7103 ,  H04B1/7097 ,  H04B1/7107 ,  H04B1/71075 ,  H04B2201/70701

Abstract: A global pilot and unwanted traffic signal canceler for a spread spectrum communication system receiver that reduces their contributive noise effects. The present invention effectively cancels the global pilot and unwanted, active traffic signals prior to decoding a desired traffic signal at the receiver. The system and method decreases the bit error rate (BER) yielding an increased signal-to-noise ratio.

公开(公告)号：US20040085920A1

公开(公告)日：2004-05-06

申请号：US10695276

申请日：2003-10-28

Applicant: InterDigital Technology Corporation

Inventor： Nadir Sezgin ,  Fatih M. Ozluturk

IPC: H04B007/216

CPC classification number: H04B1/7083 ,  H04B1/70735 ,  H04B1/70752 ,  H04B1/7093 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04L27/2053 ,  H04W56/00 ,  H04W74/04 ,  H04W88/08

Abstract: A synchronization signal is used in a wireless time division duplex communication system. The time division duplex communication system uses time slots in repeating frames for communication. The synchronization signal is transmitted from a base station to identify a code group associated with the base station. The synchronization signal comprises a spreading code associated with a selected base station. Binary bits identifying a code group associated with the selected base station are modulated by said spreading code using binary phase shift keying.

Abstract translation: 在无线时分双工通信系统中使用同步信号。 时分双工通信系统在重复帧中使用时隙进行通信。 从基站发送同步信号以识别与基站相关联的码组。 同步信号包括与所选择的基站相关联的扩展码。 识别与所选择的基站相关联的码组的二进制位由二进制相移键控由所述扩展码进行调制。

公开(公告)号：US20020118705A1

公开(公告)日：2002-08-29

申请号：US10074949

申请日：2002-02-13

Applicant: InterDigital Technology Corporation

Inventor： Nadir Sezgin ,  Fatih M. Ozluturk

IPC: H04J003/06

CPC classification number: H04B1/7083 ,  H04B1/70735 ,  H04B1/70752 ,  H04B1/7093 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04L27/2053 ,  H04W56/00 ,  H04W74/04 ,  H04W88/08

Abstract: A user equipment (UE) is capable of receiving and transmitting communication signals in a time division duplex using code division multiple access format. The UE receives a primary code synchronization (PSC) signal, the PSC signal is received in a selected time slot in a PSC channel. Secondary synchronization signals are identified. The secondary synchronization signals are received along with the PSC signal. An assigned code group and the selected time slot is determined based on the identified secondary synchronization signals. The assigned code group is out of a predetermined number N of possible code groups. Each combination of the N code groups and the selected time slot associated with a unique combination of secondary signals from a set of secondary signals which does not exceed (log2N)null1 in number.

Abstract translation: 用户设备（UE）能够使用码分多址格式在时分双工中接收和发送通信信号。 UE接收主码同步（PSC）信号，在PSC信道的选定时隙中接收PSC信号。 二次同步信号被识别。 次同步信号与PSC信号一起被接收。 基于所识别的辅助同步信号来确定分配的代码组和所选择的时隙。 分配的代码组超出预定数量N个可能的代码组。 N个码组和所选择的时隙的每个组合与来自不超过（log2N）+1的次级信号的一组二次信号的唯一组合相关联。

公开(公告)号：US20020097705A1

公开(公告)日：2002-07-25

申请号：US10074641

申请日：2002-02-13

Applicant: InterDigital Technology Corporation

Inventor： Nadir Sezgin ,  Fatih M. Ozluturk

IPC: H04J003/06

CPC classification number: H04B1/7083 ,  H04B1/70735 ,  H04B1/70752 ,  H04B1/7093 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04L27/2053 ,  H04W56/00 ,  H04W74/04 ,  H04W88/08

Abstract: A base station is capable of communicating in a time division duplex using code division multiple access format. The base station transmits a primary synchronization signal and secondary synchronization signals for synchronization purposes. A primary synchronization signal is transmitted in a selected time slot in a primary synchronization channel. The primary synchronization channel uses a plurality of time slots for communication. Each of a plurality of combinations of N code groups and the plurality of time slots is associated with a unique combination of secondary synchronization signals from a set of secondary synchronization signals, which does not exceed (log2 N)null1 in number. Selected secondary synchronization signals are transmitted out of a set of secondary synchronization signals. The selected secondary signals are associated with one of the N code groups. The one group is associated with the base station.

Abstract translation: 基站能够使用码分多址格式在时分双工中进行通信。 为了同步目的，基站发送主同步信号和次同步信号。 主同步信号在主同步信道中的选定时隙中发送。 主同步信道使用多个时隙进行通信。 N个码组和多个时隙的多个组合中的每一个与来自不超过（log2 N）+1的次级同步信号的一组次同步信号的唯一组合相关联。 选择的次同步信号从一组次同步信号中发送出去。 选择的辅助信号与N个码组中的一个相关联。 一组与基站相关联。