公开(公告)号：CA2552774A1

公开(公告)日：2005-08-04

申请号：CA2552774

申请日：2005-01-04

Applicant: INTERDIGITAL TECH CORP

Inventor： MARINIER PAUL ,  CUFFARO ANGELO ,  CAVE CHRISTOPHER ,  ROY VINCENT

IPC: H04B17/00 ,  H04L12/26 ,  H04L12/28 ,  H04W72/08 ,  H04W84/12

Abstract: A method for optimizing clear channel assessment (CCA) parameters in a wireless local area network having an access point (AP) and at least one station begins by receiving a trigger condition. An upper bound and a lower bound for an energy detect threshold (EDT) parameter are determined. A value of the EDT parameter is calculated and is bound by the upper bound and the lower bound. Lastly, the EDT parameter is updated. The method can be perform ed at each station or at the AP, with the updated CCA parameters being signaled to each station associated with the AP.

公开(公告)号：CA2552771A1

公开(公告)日：2005-08-04

申请号：CA2552771

申请日：2005-01-03

Applicant: INTERDIGITAL TECH CORP

Inventor： CAVE CHRISTOPHER ,  CUFFARO ANGELO ,  MARINIER PAUL

IPC: H04B7/26 ,  H04B1/38 ,  H04L12/28 ,  H04L69/14 ,  H04W16/10 ,  H04W36/06

Abstract: A method for changing a channel in a wireless local area network (WLAN) to alleviate congestion and high interference levels, the WLAN having an access point (AP) and at least one station, begins by determining a list of candida te channels. A channel is selected from the candidate list and is evaluated against predetermined criteria. If the selected channel meets the predetermined criteria, then all of the stations communicating with the AP a re disassociated and the AP is changed to the selected channel. If the selected channel does not meet the predetermined criteria, then the selected channel is removed from the candidate list and the selecting step is repeated if there are additional candidate channels.

公开(公告)号：CA2552604A1

公开(公告)日：2005-08-04

申请号：CA2552604

申请日：2004-12-28

Applicant: INTERDIGITAL TECH CORP

Inventor： MARINIER PAUL ,  CAVE CHRISTOPHER ,  CUFFARO ANGELO

IPC: H04B7/005 ,  H04B17/00 ,  H04J1/16 ,  H04J3/14 ,  H04L1/00 ,  H04L12/28 ,  H04W72/08 ,  H04W74/02 ,  H04W88/08

Abstract: A silent measurement period (SMP) for a selected channel in an allowable channel set (ACS) of the access point (AP) is set. During the SMP, the AP do es not serve wireless transmit/receive units (WTRUs) within its coverage area a nd reserves its channels for other BSSs. A normal operating channel of the AP i s changed to the selected channel upon initialization of the SMP. Characteristics of the selected channel is measured during the SMP. The operating channel of the AP is changed back to the normal operating channel when the duration of the SMP expires.

公开(公告)号：NO20045516L

公开(公告)日：2004-12-17

申请号：NO20045516

申请日：2004-12-17

Applicant: INTERDIGITAL TECH CORP

Inventor： CAVE CHRISTOPHER

IPC: H04L12/56 ,  H04W24/10 ,  H04W28/04 ,  H04W28/16 ,  H04W72/08 ,  H04W74/02 ,  H04B7/00 ,  H04B7/216

公开(公告)号：AU2003302310A8

公开(公告)日：2004-06-30

申请号：AU2003302310

申请日：2003-08-04

Applicant: INTERDIGITAL TECH CORP

Inventor： CAVE CHRISTOPHER ,  RUDOLF MARIAN

IPC: H04W4/02 ,  H04W16/28 ,  H04W36/08 ,  H04W48/14 ,  H04W48/20 ,  H04M1/00

Abstract: Wireless mobile unit communication initiation is provided in a radio network that has a plurality of base stations, each providing wireless communication services in a respective geographic coverage. The wireless communication is established by first transmitting an omnidirectional sounding pulse from a wireless mobile unit. Information related to the detected sounding pulse is communicated to an interface by each base station detecting the sounding pulse. One of the base stations that detected the sounding pulse is selected for mobile unit communication based on the communicated information and directs a communication beam to the mobile unit to establish wireless communication. Alternatively, one or more of the base stations that detected the sounding pulse direct a communication beam to the mobile unit and the mobile unit selects unit the base station with which it is to establish wireless communication. Preferably, smart antennas, including directional beamforming capability, are employed by the base stations.

公开(公告)号：AU2003270776A1

公开(公告)日：2004-04-19

申请号：AU2003270776

申请日：2003-09-22

Applicant: INTERDIGITAL TECH CORP

Inventor： ZUNIGA JUAN CARLOS ,  CAVE CHRISTOPHER ,  RUDOLF MARIAN

IPC: H04B7/06 ,  H04L12/56 ,  H04W4/12 ,  H04W16/28 ,  H04W36/08 ,  H04W36/32

Abstract: A method for handover a mobile unit from a first base station to a second base station in a wireless communication systems employing smart antenna technology. Following trigger events of a handover, the mobile station generates a physical signal sounding pulse transmitted by an isotropic antenna. The sounding pulse may consist of a common sequence of symbols or a specific sequence of symbols that uniquely identifies the mobile station. A series of sounding pulses can be sent according to a power ramping procedure until a base station has focused a communications beam toward the mobile. Receiving base stations provide feedback information upon detection of the sounding pulse allowing the mobile unit and/or base station to form communication beams toward each other. A mapping protocol may also be utilized by the communication system.

公开(公告)号：CA2482774A1

公开(公告)日：2003-10-30

申请号：CA2482774

申请日：2003-04-16

Applicant: INTERDIGITAL TECH CORP

Inventor： CAVE CHRISTOPHER ,  ZEIRA ELDAD

IPC: H04B7/26 ,  H04L1/00 ,  H04L12/28 ,  H04L12/56 ,  H04L29/08 ,  H04B7/00 ,  H04B17/00

Abstract: The present invention is a method for controlling access to a contention-bas ed communication channel. Error types of a transmitted communication signal ove r the communication channel are classified and corresponding parameters of the communication channel are adjusted in response to the classification to control the rate at which individual error types occur.

公开(公告)号：ES2732975T3

公开(公告)日：2019-11-26

申请号：ES08725087

申请日：2008-02-01

Applicant: INTERDIGITAL TECH CORP

Inventor： PANI DIANA ,  CAVE CHRISTOPHER ,  TERRY STEPHEN ,  MARINIER PAUL

IPC: H04W36/02 ,  H04L1/18 ,  H04W28/06 ,  H04W36/00 ,  H04W36/14 ,  H04W76/04 ,  H04W76/22 ,  H04W76/27

Abstract: Un método de reiniciar una unidad de control de acceso al medio, MAC, comprendiendo el método: recibir un mensaje de reinicio MAC de alta velocidad mejorado, MAC-ehs, desde una unidad de control de recursos de radio, RRC. limpiar una memoria intermedia suave de solicitudes de repetición automática híbrida, HARQ, en la unidad MAC para todos los procesos HARQ configurados; detener los temporizadores de reordenamiento activos; realizando una cola de reordenamiento el reordenamiento de las unidades de datos de protocolo, PDU, MAC-ehs recibidas, usando al menos una variable; fijar los temporizadores y la variable a sus valores iniciales; entregar todas las PDU de reordenamiento en la cola de reordenamiento a la unidad de montaje ubicada en la unidad MAC; realizando la unidad de montaje el montaje de las unidades de datos de servicio, SDU, MAC-ehs y entregando de manera exitosa las SDU MAC-ehs montadas a una unidad de demultiplexación de identificador de canal lógico, LCH-ID, ubicada en la unidad MAC; entregando la unidad de demultiplexación LCH-ID las SDU MAC completas al canal lógico o flujo MAC-d/c correcto; descartar los segmentos SDU MAC-ehs almacenados de la unidad de montaje; y limpiar la cola de reordenamiento.

公开(公告)号：DK2259630T3

公开(公告)日：2016-11-07

申请号：DK10180505

申请日：2005-09-13

Applicant: INTERDIGITAL TECH CORP

Inventor： KWAK JOSEPH ,  CUFFARO ANGELO ,  MARINIER PAUL ,  CAVE CHRISTOPHER ,  ALI AHMED ,  ROY VINCENT ,  TOUAG ATHMANE ,  LA SITA FRANK ,  HUNKELER TERESA ,  RAHMAN SHAMIM AKBAR ,  RUDOLF MARIAN

IPC: H04L12/28 ,  H04W28/08 ,  H04W28/14 ,  H04W48/08 ,  H04W48/12 ,  H04W48/18 ,  H04W48/20 ,  H04W72/00 ,  H04W74/08

公开(公告)号：NO338135B1

公开(公告)日：2016-08-01

申请号：NO20140851

申请日：2014-07-03

Applicant: INTERDIGITAL TECH CORP

Inventor： CAVE CHRISTOPHER

IPC: H04L12/56 ,  H04W76/04 ,  H04W24/10 ,  H04W28/04 ,  H04W28/16 ,  H04W72/04 ,  H04W72/08 ,  H04W74/02 ,  H04W76/02

Abstract: En fremgangsmåte for adgangskontroll av kanalsignaleringsanmodninger innbefatter å motta en signaleringsanmodning (12). Et mottak av signaleringsforbindelsesanmodning gir en første bestemmelse utført for å bestemme om det skal tilveiebringes adgang (14), til felles resurser. Når den første bestemmelsen er negativ, blir en andre bestemmelse utført for å bestemme hvorvidt det skal gis adgang til dedikerte resurser (15). Når den andre bestemmelsen er negativ, blir signaleringsanmodningen forkastet (21). Når den andre bestemmelsen er positiv, blir anmodningen gitt adgang til dedikerte resurser (22). Når den første bestemmelsen er positiv, blir den tredje bestemmelse utført som å avgjøre hvorvidt kvaliteten til signaleringsanmodningen er høy eller lav (16). Dersom kvaliteten eller anmodningen er høy, blir signaleringsanmodningen gitt adgang til felles resurser (20). Når kvaliteten er lav, blir en fjerde bestemmelse utført (18) for å avgjøre hvorvidt det skal tilveiebringes adgang til dedikerte resurser (22). Dersom den fjerde bestemmelsen er negativ, gis anmodningen adgang til felles resurser (20).