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    1.
    发明专利
    未知

    公开(公告)号：AT481839T

    公开(公告)日：2010-10-15

    申请号：AT08724477

    申请日：2008-01-11

    Applicant: INTERDIGITAL TECH CORP

    Inventor： KWAK JOSEPH ,  LEVY JOSEPH ,  ZUNIGA JUAN ,  GRANDHI SUDHEER

    IPC: H04W24/00 ,  H04W28/04 ,  H04W48/16

    Abstract: A method for measuring interference at a station (STA) comprising to measure a perceived idle channel noise power value associated with the STA over a plurality of measurement periods and calculating a difference value between two of the idle channel noise power values; and determining that radio frequency (RF) interference is detected on a condition that the difference value is greater than a threshold.

    METODOS PARA MEDIR LA INTERFERENCIA EN ESTACIONES INALAMBRICAS.
    2.
    发明专利
    METODOS PARA MEDIR LA INTERFERENCIA EN ESTACIONES INALAMBRICAS. 未知

    公开(公告)号：ES2351541T3

    公开(公告)日：2011-02-07

    申请号：ES08724477

    申请日：2008-01-11

    Applicant: INTERDIGITAL TECH CORP

    Inventor： LEVY JOSEPH ,  ZUNIGA JUAN ,  KWAK JOSEPH ,  GRANDHI SUDHEER

    IPC: H04W24/00 ,  H04W28/04 ,  H04W48/16

    Abstract: Un método para uso en una estación, STA, para medir la interferencia de radiofrecuencia, RF, comprendiendo el método: recibir desde un punto de acceso, AP, una medición de un indicador de potencia media de ruido, AP_ANPI, siendo ese AP_ANPI determinado mediante la medición de la potencia del canal desocupado percibida por el AP y promediándola en el tiempo; y determinar un indicador de potencia media de ruido de la STA, STA_ANPI, midiendo la potencia del canal desocupado percibida por la STA y promediándola en el tiempo, caracterizado porque el método comprende además: determinar la interferencia de RF comparando el STA_ANPI con el AP_ANPI.

    3.
    发明专利
    未知

    公开(公告)号：AT453295T

    公开(公告)日：2010-01-15

    申请号：AT05815366

    申请日：2005-11-01

    Applicant: INTERDIGITAL TECH CORP

    Inventor： OLIVERA-HERNANDEZ ULISES ,  SHAHEEN KAMEL ,  CARLTON ALAN ,  RUDOLF MARIAN ,  LU GUANG ,  ZUNIGA JUAN ,  ZAKI MAGED

    IPC: H04W4/00 ,  H04W8/08 ,  H04W24/00 ,  H04W36/00 ,  H04W36/02 ,  H04W36/14 ,  H04W48/08 ,  H04W48/16 ,  H04W76/02 ,  H04W80/00 ,  H04W80/04 ,  H04W88/06 ,  H04W92/02

    Abstract: A wireless communication system including at least one IEEE 802 multi-stack wireless transmit/receive unit (WTRU) and a plurality of technologically diversified access networks, such as IEEE 802.X networks and Third Generation Partnership Project (3GPP) networks, that are concurrently deployed, Both the multi-stack WTRU and the technologically-diversified networks include a media independent handover (MIH) function.; The WTRU is configured to read MIH information transmitted from one of the IEEE 802.X networks, trigger 3GPP authentication and authorization procedures based on the MIH information, obtain a local Internee protocol (IP) address, establish a tunnel to a packet data gateway (PDG) in a 3GPP core network, construct a care of address (CoA) and register the CoA with a home agent of the WTRU, whereby data destined for the WTRU is routed via the home agent through a new tunnel established between the home agent and a foreign agent based on the CoA.

    4.
    发明专利
    未知

    公开(公告)号：AT469482T

    公开(公告)日：2010-06-15

    申请号：AT07756066

    申请日：2007-04-24

    Applicant: INTERDIGITAL TECH CORP

    Inventor： RUDOLF MARIAN ,  ZUNIGA JUAN ,  LEVY JOSEPH ,  GRANDHI SUDHEER A

    IPC: H04L12/24

    Abstract: An access point (AP) is disclosed comprising a wireless receiver configured to wirelessly receive capability and configuration data from a plurality of wireless transmit receive units, WTRUs, the capability and configuration data including information regarding coexistence of a 20 Mhz channel and a 40 Mhz channel. The AP further comprises a memory unit configured to store the capability and configuration data, and a wireless transmitter configured to wirelessly transmit, to at least one of the plurality of WTRUs, WTRU-specific configuration data comprising channelization data and legacy protection data based on the stored capability and configuration data.

    6.
    发明专利
    未知

    公开(公告)号：AT506825T

    公开(公告)日：2011-05-15

    申请号：AT06815021

    申请日：2006-09-20

    Applicant: INTERDIGITAL TECH CORP

    Inventor： LIVET CATHERINE ,  ZUNIGA JUAN ,  TOMICI JOHN ,  RAHMAN SHAMIM

    IPC: H04W56/00 ,  H04W84/18

    Abstract: A method and apparatus for communicating slot allocations of nodes in a wireless mesh network that has data exchanges between the nodes occurring during slots. Each node maintains internal tracking of its slot allocation. A node may request a slot allocation of another node, and each node is enabled to report its slot allocation to other nodes. An information element (IE) and management type messages are introduced for tracking and reporting slot allocations among mesh network nodes.

    7.
    发明专利
    未知

    公开(公告)号：AT386393T

    公开(公告)日：2008-03-15

    申请号：AT03765793

    申请日：2003-07-18

    Applicant: INTERDIGITAL TECH CORP

    Inventor： ZUNIGA JUAN ,  IACONO ANA ,  STERN-BERKOWITZ JANET

    IPC: H04L27/30 ,  H04B7/26 ,  H04J11/00 ,  H04Q7/36 ,  H04Q7/38

    Abstract: The invention includes a system and methods for orthogonal variable spreading factor (OVSF) code assignment, de-allocation and code tree pruning. The invention also includes OVSF code identification and storage schemes. Embodiments are provided for code tree pruning, code assignment and de-allocation. These embodiments apply to both slotted and non-slotted code division multiple access systems.

    9.
    发明专利
    未知

    公开(公告)号：AT414368T

    公开(公告)日：2008-11-15

    申请号：AT05792704

    申请日：2005-09-01

    Applicant: INTERDIGITAL TECH CORP

    Inventor： LIVET CATHERINE ,  LU GUANG ,  ZUNIGA JUAN

    IPC: H04L12/56 ,  H04L45/741 ,  H04W28/04 ,  H04W40/24 ,  H04W84/18

    Abstract: The present invention relates to a method for confirming the delivery of a data packet in a mesh network by sending an acknowledgement (ACK) to an ingress mesh point (IMP). A mesh network comprises a plurality of mesh points that are wirelessly linked together. A data packet sent by a station (STA) is received by an IMP. A MAC frame is generated for transmission of the data packet and the frame is forwarded to an egress mesh point (EMP) in order to provide a service by the mesh network. The MAC frame includes a field comprising an IMP address and an EMP address. When the EMP, (or optionally an intermediate mesh point), receives a data packet successfully, the EMP or the intermediate mesh point sends an ACK to the IMP or preceding mesh point.

    10.
    发明专利
    未知

    公开(公告)号：AT382168T

    公开(公告)日：2008-01-15

    申请号：AT03742391

    申请日：2003-07-02

    Applicant: INTERDIGITAL TECH CORP

    Inventor： ZUNIGA JUAN ,  HUNKELER TERESA

    IPC: G06F15/177 ,  G06F15/173 ,  H04B1/713 ,  H04B7/26 ,  H04J1/00 ,  H04L12/28 ,  H04W4/06 ,  H04W16/14 ,  H04W36/00 ,  H04W72/04 ,  H04W84/12 ,  H04W88/08

    Abstract: A wireless LAN (WLAN) system for communications among a plurality of users within a basic service system or cell comprising a switching access point (SAP) for transmitting and receiving point-to-multipoint communications to and from the users and a plurality of user terminals, each of which is assigned to a part available in the switching access point and defining a unique combination of a carrier frequency and a spatial beam for isolating communications among the users to prevent collisions; wherein said assignment of frequencies is not permanent and instead use is made of a dynamic or pseudo-random carrier assignment in which received request-to-send signals from the users in a shared carrier is replied to with clear to send signals from the SAP indicating the carrier that can be used for transmission.

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