公开(公告)号：AR041458A1

公开(公告)日：2005-05-18

申请号：ARP030103580

申请日：2003-10-01

Applicant: INTERDIGITAL TECH CORP

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

IPC: H04B7/26 ,  G01S5/00 ,  H04L12/28 ,  H04L12/56 ,  H04L29/02 ,  H04W4/02 ,  H04W64/00 ,  H04W84/00 ,  H04W88/04 ,  H04W88/06 ,  H04Q7/20

Abstract: Una red inalámbrica provee comunicaciones inalámbricas controladas con WTRUs inalámbricas de modo múltiple. La red inalámbrica tiene al menos una estación base con un transmisor/receptor que opera en un modo de comunicación de infraestructura con WTRUs de modo múltiple y un controlador que trasmite senales de control a través de comunicaciones de infraestructuras con una WTRU que controla comunicaciones en modo de igual a igual de esa WTRU con otras WTRUs. Una WTRU tiene componentes de transmisor/receptor configurados para operación selectiva en un modo de comunicación de infraestructura con una estación base de red y en un modo de comunicación de igual a igual con otras WTRUs. La WTRU también tiene un controlador de transmisor/receptor configurado para controlar selectivamente comunicaciones en modo de igual a igual con otras WTRUs en base a senales de comunicación recibida en comunicación de infraestructura con una estación base de red. Preferentemente, el controlador de transmisor/receptor está configurado para controlar los componentes de transmisor/receptor para que conmuten entre un modo de comunicación de infraestructura y un modo de comunicación de igual a igual en base a criterios de calidad de servicios.

公开(公告)号：AR041457A1

公开(公告)日：2005-05-18

申请号：ARP030103579

申请日：2003-10-01

Applicant: INTERDIGITAL TECH CORP

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

IPC: H04B7/26 ,  G01S5/00 ,  H04L12/28 ,  H04L12/56 ,  H04L29/02 ,  H04W4/02 ,  H04W64/00 ,  H04W84/00 ,  H04W88/04 ,  H04W88/06 ,  H04Q7/36

Abstract: Se provee un método y sistema para una comunicación de una unidad móvil inalámbrica dentro de una red inalámbrica que tiene áreas geográficas para uso preferido en comunicación. Se determina una ubicación geográfica estimada de una unidad móvil. La unidad móvil está provista con datos de posición relativa de la menos un área de comunicación preferida con relación a la ubicación estimada de la unidad móvil es luego reubicada en un área de comunicación preferida en base a los datos de posición relativa. Preferentemente, se inicia una solicitud para una ubicación de área de comunicación preferida previamente designada a través de una transmisión de la unidad móvil y la misma es recibida por una estación base de red. La unidad móvil puede estar equipada con un sistema de posicionamiento global (GPS) para determinar la ubicación estimada de la unidad móvil. La transmisión de datos de ubicación estimada puede depender de si la unidad móvil o la red calcula datos de posición relativa.

公开(公告)号：NO20051933A

公开(公告)日：2005-04-20

申请号：NO20051933

申请日：2005-04-20

Applicant: INTERDIGITAL TECH CORP

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

IPC: H04B7/26 ,  G01S5/00 ,  H04L12/28 ,  H04L12/56 ,  H04L29/02 ,  H04W4/02 ,  H04W64/00 ,  H04W84/00 ,  H04W88/04 ,  H04W88/06 ,  H04Q7/20

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

公开(公告)号：NO20042243L

公开(公告)日：2004-05-28

申请号：NO20042243

申请日：2004-05-28

Applicant: INTERDIGITAL TECH CORP

Inventor： KAZAKEVICH LEONID ,  BOLOURCHI NADER ,  YANG RUI

IPC: H01Q21/00 ,  H04B1/707 ,  H04B7/02 ,  H04B7/06 ,  H04B7/216 ,  H04J13/00 ,  H04J99/00 ,  H04W88/08 ,  H04J13/02

Abstract: The number of users and data capacity of wireless systems are increased by employing apparatus and method for increasing the number of spreading codes available in the system by providing a mechanism to reuse the already allocated spreading code or use the codes that may correlate to those already being used within the same sector/cell. This, in return, provides capacity improvement proportional to the number of added base station (BS) antennas for each cell. An antenna null steering technique for code allocation maintains the cross correlation properties of the codes only for the desired user and to obtain a gain in capacity improvement.

公开(公告)号：AT266909T

公开(公告)日：2004-05-15

申请号：AT01926458

申请日：2001-03-28

Applicant: INTERDIGITAL TECH CORP

Inventor： KAZAKEVICH LEONID ,  CABROL PATRICK

IPC: H03F3/24 ,  H03F1/02 ,  H03F1/06 ,  H03F1/30 ,  H03G3/30 ,  H04B7/005

Abstract: A communication signal input (20) provides a voice or data wireless signal (32) for transmission. A detector (14) removes the modulation component from the spread communication signal and provides a voltage to a voltage-to-current converter (16) controlled by a transmit power control (TPC) signal (26). An output current (30) and the output signal (38) are connected to a current mirror (18) that outputs a bias signal (34) to a radio frequency (RF) power amplifier (12). An independent claim is also included for a method of dynamically biasing an RF power amplifier.

公开(公告)号：AU2003277155A1

公开(公告)日：2004-04-23

申请号：AU2003277155

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 ,  G01S5/00 ,  H04L12/28 ,  H04L12/56 ,  H04L29/02 ,  H04W4/02 ,  H04W64/00 ,  H04W84/00 ,  H04W88/04 ,  H04W88/06 ,  H04Q7/20

Abstract: A wireless network provides controlled wireless communications with multi-mode wireless WTRUs. The wireless network has at least one base station having a transceiver operating in an infrastructure communication mode with multi mode WTRUs and a controller that transmits control signals via infrastructure communications with a WTRU that control peer-to-peer mode communications of that WTRU with other WTRUs. A WTRU has transceiver components configured for selective operation in an infrastructure communication mode with a network base station and in a peer-to-peer communication mode with other WTRUs. The WTRU also has a transceiver controller configured to selectively control peer-to-peer mode communications with other WTRUs based on communication signals received in infrastructure communications with a network base station. Preferably, the transceiver controller is configured to control the transceiver components to switch between infrastructure communication mode and peer-to-peer communication mode based on Quality of Service criteria.

公开(公告)号：CA2500659A1

公开(公告)日：2004-04-15

申请号：CA2500659

申请日：2003-09-30

Applicant: INTERDIGITAL TECH CORP

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

IPC: H04B7/26 ,  G01S5/00 ,  H04L12/28 ,  H04L12/56 ,  H04L29/02 ,  H04W4/02 ,  H04W64/00 ,  H04W84/00 ,  H04W88/04 ,  H04W88/06 ,  H04Q7/20

Abstract: A method and system for wireless mobile unit communication within a wireless network having geographic areas for preferred communication usage is provide d. 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 dat a.

公开(公告)号：AU2003254263A1

公开(公告)日：2004-02-23

申请号：AU2003254263

申请日：2003-07-30

Applicant: INTERDIGITAL TECH CORP

Inventor： REZNIK ALEXANDER ,  KAZAKEVICH LEONID ,  YANG RUI

IPC: H01Q21/00 ,  H04B7/04 ,  H04B7/06 ,  H04B1/38

Abstract: A "smart antenna" method and system for use in cellular networks where the wireless transmit receive unit and/or the base station utilize multi-user detection (MUD). The interference to and from other users is taken into consideration to maximize the desired signal while eliminating or reducing interfering signals, thereby increasing overall system capacity.

公开(公告)号：CA2493742A1

公开(公告)日：2004-02-05

申请号：CA2493742

申请日：2003-07-22

Applicant: INTERDIGITAL TECH CORP

Inventor： KAZAKEVICH LEONID ,  SHAHEEN KAMEL M

IPC: H04B7/26 ,  H04L12/28 ,  H04W92/02 ,  H04Q7/20 ,  H04B1/38

Abstract: A method enabling a wireless remote terminal (UE) to access a universal mobi le telecommunication system (UMTS) through a wireless local area network (WLAN) wherein UMTS services are transmitted to a format converter from a UMTS transceiver and the format converter changes the format of received messages to a WLAN format before transmission to the UE which is operating in the WLA N mode.

公开(公告)号：AU2003212482A8

公开(公告)日：2003-09-22

申请号：AU2003212482

申请日：2003-03-04

Applicant: INTERDIGITAL TECH CORP

Inventor： OZLUTURK FATIH ,  KAZAKEVICH LEONID ,  KLAHN GERARD

IPC: H04B7/08 ,  H04B1/02 ,  H03C7/02 ,  H04B7/02 ,  H04B7/185

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 is obtained by giving priority to the antenna receiving a better/best quality signal. Measurements are taken by at least a channel estimator during each time slot to determine the weighting to be given to the antenna with the better/best 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 individually, and in some cases are combined to receive additional benefits in efficiency. For example, one or more of recent and/or current channel estimation, history, optimization may be employed, in addition to channel estimation, to determine signal quality.