公开(公告)号：EP1606791A4

公开(公告)日：2006-06-14

申请号：EP04716161

申请日：2004-03-01

Applicant: INTERDIGITAL TECH CORP

Inventor： REZNIK ALEXANDER ,  ZEIRA ARIELA ,  OZLUTURK FATIH ,  KAZAKEVICH LEONID

IPC: H04B1/707

CPC classification number: H04B1/7103 ,  H04B1/71055 ,  H04B2001/71077 ,  H04B2201/70705

Abstract: A first detector receives a received signal and extracts the data signals from the received signal. A hard decision converter converts soft symbols outputted by the first detector into hard symbols. An interference canceller extracts the voice signals from the received signal. A second detector is connected to the output of the interference canceller, and extracts the individual voice signals. The second detector is a different detector type than the first detector.

公开(公告)号：EP1554897A4

公开(公告)日：2006-04-05

申请号：EP03799363

申请日：2003-09-30

Applicant: INTERDIGITAL TECH CORP

Inventor： REDDY GAUTAM G ,  CHITRAPU PRABHAKAR R ,  KAZAKEVICH LEONID ,  HUNKELER TERESA ,  CHANDRA ARTY

IPC: H04B7/26 ,  H04L12/56 ,  G01S5/00 ,  H04L12/28 ,  H04L29/02 ,  H04W4/02 ,  H04W64/00 ,  H04W84/00 ,  H04W88/04 ,  H04W88/06

CPC classification number: H04W88/04 ,  G01S5/0027 ,  H04W4/02 ,  H04W64/00 ,  H04W84/00 ,  H04W88/06

Abstract: A method and system for wireless mobile unit communication within a wireless network having geographic areas for preferred communication usage is provided. An estimated geographic location of a mobile unit is determined. The mobile unit is provided with relative position data of at least one preferred communication area relative to the determined mobile unit estimated location. The mobile unit is then relocated to a preferred communication area based on the relative position data. Preferably, a request for a pre-designated preferred communication area location is initiated by a mobile unit transmission and received by a network base station. The mobile unit can be equipped with a global positioning system (GPS) to determine the mobile unit's estimated location. Transmission of estimated location data can be dependent upon whether the mobile unit or the network calculates relative position data.

公开(公告)号：EP1529345A4

公开(公告)日：2006-02-01

申请号：EP03742035

申请日：2003-06-17

Applicant: INTERDIGITAL TECH CORP

Inventor： KAZAKEVICH LEONID

IPC: H04B1/04 ,  H04B5/00 ,  H04B7/00 ,  H04W8/20 ,  H04W76/02 ,  H04W92/18

CPC classification number: H04W8/205 ,  H04W76/02 ,  H04W92/18

Abstract: A system and method for transmitting user data between personal communication devices is disclosed. User data may be electronically transmitted between personal communication devices using hardwired interfaces, optical interfaces, and cellular communication networks. User data may also be stored in a cellular communications network for electronic transmission between the network and personal communication devices as desired.

公开(公告)号：EP1527644A4

公开(公告)日：2005-08-10

申请号：EP03771745

申请日：2003-07-23

Applicant: INTERDIGITAL TECH CORP

Inventor： SHAHEEN KAMEL M ,  KAZAKEVICH LEONID

IPC: H04L12/28 ,  H04W4/12 ,  H04W88/06 ,  H04W92/02 ,  H04Q7/24 ,  H04J3/16 ,  H04Q7/32

CPC classification number: H04W92/02 ,  H04W4/12 ,  H04W88/06

Abstract: Method and apparatus for delivery of UMTS services to a dual mode mobile station (24) through a WLAN when the mobile station is operating within a WLAN environment (20). UMTS services are transmitted to a WLAN through a UMTS repeater (18) tuned to receive services addressed to registered IDs and transmit these services to that (those) WLAN(s) having mobile stations registered with the UMTS. The WLAN format converter converts the UMTS format into a WLAN message format and communicates the message to the registered users.

公开(公告)号：EP1634400A4

公开(公告)日：2012-02-29

申请号：EP04751325

申请日：2004-05-06

Applicant: INTERDIGITAL TECH CORP

Inventor： DEMIR ALPASLAN ,  KAZAKEVICH LEONID ,  NARAYAN GEETHA LAKSHMI

IPC: H04K1/02 ,  H04B7/005

CPC classification number: H04W52/52 ,  H03F1/3247 ,  H03F1/3294 ,  H04W52/08 ,  H04W52/226

公开(公告)号：EP1561282A4

公开(公告)日：2010-05-26

申请号：EP03783366

申请日：2003-11-14

Applicant: INTERDIGITAL TECH CORP

Inventor： KAZAKEVICH LEONID ,  OZLUTURK FATIH ,  DEMIR ALPASLAN

IPC: H04B1/00 ,  H04B1/16 ,  H04B7/005 ,  H04B7/08 ,  H04B17/00

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 provide enhanced reception. A control unit selectively controls the powering of the receivers to limit power consumption based on selected parameters.

公开(公告)号：EP1632074A4

公开(公告)日：2007-04-25

申请号：EP04785738

申请日：2004-04-30

Applicant: INTERDIGITAL TECH CORP

Inventor： DEMIR ALPASLAN ,  KAZAKEVICH LEONID ,  HAQUE TANBIR

IPC: H03C3/40 ,  H04B1/30 ,  H04L27/00 ,  H04L27/34

CPC classification number: H04B1/30 ,  H03C3/406 ,  H04L2027/0016 ,  H04L2027/0018

Abstract: A method and system for determining at least one DC offset compensation value used to suppress carrier leakage occurring on real and imaginary signal paths in an analog radio transmitter when a significant temperature change in the transmitter is detected. At least one DC offset signal having a level that corresponds to the at least one DC offset compensation value is provided to a digital DC offset compensation module which adjusts the DC level of at least one of the real and imaginary signal paths.

公开(公告)号：EP1606896A4

公开(公告)日：2007-02-28

申请号：EP04759634

申请日：2004-03-16

Applicant: INTERDIGITAL TECH CORP

Inventor： YANG RUI ,  GRIECO DONALD M ,  KAZAKEVICH LEONID

IPC: H04B17/40 ,  H03G3/30 ,  H04L5/14

CPC classification number: H03G3/3052 ,  H03G3/3036 ,  H03G3/3042 ,  H03G3/3047 ,  H04L5/1484 ,  H04M3/40

Abstract: In a time-division duplex (TDD) system, a reliable initialization scheme that is applicable to an automatic gain controller (AGC) at a base station is implemented in various forms depending on the availability of certain information such as signal-to-interference ratio (SIR), spreading factors and other parameters. A more accurate estimation of the initial control word of a gain-adjustable amplifier for one or more time slots is implemented. The scheme is applicable to AGC initialization for each time slot of the TDD system, but is also applicable to other systems of transmission, without limitation.

公开(公告)号：EP1568192A4

公开(公告)日：2006-08-23

申请号：EP03783365

申请日：2003-11-14

Applicant: INTERDIGITAL TECH CORP

Inventor： OZLUTURK FATIH ,  KAZAKEVICH LEONID ,  HAQUE TANBIR ,  DEMIR ALPASLAN ,  NARAYAN GEETHA LAKSHMI ,  KEARNEY KENNETH

IPC: H03D3/00 ,  H03C3/40 ,  H03G3/00 ,  H03G3/30 ,  H04B1/30 ,  H04L27/00

CPC classification number: H03G3/001 ,  H03D3/008 ,  H03D3/009 ,  H03G3/3068 ,  H03G3/3089 ,  H03G2201/103 ,  H03G2201/202 ,  H03G2201/302 ,  H03G2201/307 ,  H03G2201/508 ,  H04B1/30 ,  H04L2027/0016 ,  H04L2027/0024

Abstract: In order to compensate for performance degradation caused by inferior low-cost analog radio component (105) tolerances of an analog radio (100), a future system architecture (FSA) wireless communication transceiver employs numerous digital signal processing techniques to compensate for deficiencies of such analog components so that modern specifications may be relaxed. Automatic gain control (110) functions are provided in the digital domain, so as to provide enhanced phase and amplitude compensation, as well as many other radio frequency parameters.

公开(公告)号：EP1642392A4

公开(公告)日：2006-08-02

申请号：EP04752756

申请日：2004-05-20

Applicant: INTERDIGITAL TECH CORP

Inventor： DEMIR ALPASLAN ,  KAZAKEVICH LEONID ,  HAQUE TANBIR

IPC: H03D3/00

CPC classification number: H03D3/009

Abstract: A digital baseband (DBB) radio frequency (RF) receiver includes a digital high pass filter compensation (HPFC) module used to suppress group delay variation distortion caused by using low cost analog high pass filters (HPFs) in the receiver. The digital HPFC module reduces a cutoff frequency, established by the HPFs for the real and imaginary signal component frequency domain responses by providing a first compensation signal having a first predetermined value (K1). The digital HPFC module adjusts the gain of the high pass response of the real and imaginary signal component frequency domains by providing a second compensation signal having a second predetermined value (K2).

Abstract translation: 数字基带（DBB）射频（RF）接收器包括一个数字高通滤波器补偿（HPFC）模块，用于抑制在接收器中使用低成本模拟高通滤波器（HPF）导致的群时延变化失真。 数字HPFC模块通过提供具有第一预定值（K1）的第一补偿信号来减小由HPF建立的实部和虚部信号分量频域响应的截止频率。 数字HPFC模块通过提供具有第二预定值（K2）的第二补偿信号来调整实信号分量频域和虚信号分量频域的高通响应的增益。