中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

43 records (took 0.022 seconds)

    A METHOD AND SYSTEM FOR A LOW-OVERHEAD MOBILITY MANAGEMENT PROTOCOL IN THE INTERNET PROTOCOL LAYER
    11.
    发明专利
    A METHOD AND SYSTEM FOR A LOW-OVERHEAD MOBILITY MANAGEMENT PROTOCOL IN THE INTERNET PROTOCOL LAYER 未知

    公开(公告)号：CA2438929C

    公开(公告)日：2010-07-20

    申请号：CA2438929

    申请日：2002-02-14

    Applicant: INTERDIGITAL TECH CORP

    Inventor： SHAHRIER SHARIF M ,  CHITRAPU PRABHAKAR R

    IPC: H04L12/28 ,  H04L29/06 ,  C07C29/09 ,  C07C33/46 ,  C07C43/313 ,  C07C69/63 ,  C07D307/79 ,  H04L29/12 ,  H04W8/08 ,  H04W8/26 ,  H04W80/04

    Abstract: A system and method for supporting mobile Internet communication is provided which employs a plurality of Routers and a plurality of Mobile Nodes (MNs). Each Router has a unique communication address. Each MN is associated with a home Router. Each Router has an associated Mobile Node Location List identifying each MN for which the Router is the home Router and the communication address of a Router corresponding to a current location of each such MN. Each MN is movable from an old location where the MN communicates with the Internet via one Router to a current location where the MN communicates with the Internet via a different Router. Communication at the current location via the different Router is established by communicating to the MN's home Router the communication address of the different Router as the communication address corresponding to the MN's current location. Accordingly, a data communication from a corresponding node (CN) to a selected MN is communicated to the selected MN by accessing the Mobile Node Location List of the selected MN's home Router to determine the communication address corresponding to the selected MN's current location and directing the data communication to that determined communication address.

    UN METODO Y UN SISTEMA PARA UN PROTOCOLO DE GERENCIAMIENTO DE MOVILIDAD DE BAJO RENDIMIENTO EN LA CAPA DE PROTOCOLO DE INTERNET
    13.
    发明专利
    UN METODO Y UN SISTEMA PARA UN PROTOCOLO DE GERENCIAMIENTO DE MOVILIDAD DE BAJO RENDIMIENTO EN LA CAPA DE PROTOCOLO DE INTERNET 未知

    公开(公告)号：AR032817A1

    公开(公告)日：2003-11-26

    申请号：ARP020100591

    申请日：2002-02-21

    Applicant: INTERDIGITAL TECH CORP

    Inventor： SHAHRIER SHARIF M ,  CHITRAPU PRABHAKAR R

    IPC: H04L12/28 ,  C07C29/09 ,  C07C33/46 ,  C07C43/313 ,  C07C69/63 ,  C07D307/79 ,  H04L29/06 ,  H04L29/12 ,  H04W8/08 ,  H04W8/26 ,  H04W80/04

    Abstract: Se proveen un sistema y un método para soportar una comunicacion de Internet movil que emplea una pluralidad de Ruteadores (routers) y una pluralidad de Nodos Moviles (MN). Cada Ruteador tiene una direccion de comunicacion unica. Cada MN está asociado con un Ruteador local. Cada Ruteador tiene asociada una Lista de Nodos Moviles que identifica cada MN para el que el Ruteador es el Ruteador local y la direccion de comunicacion de un Ruteador correspondiente a una ubicacion actual de cada uno de tales MN. Cada MN puede desplazarse desde una ubicacion vieja, donde el MN se comunica con Internet a través de un Ruteador, hasta una ubicacion actual donde el MN se comunica con Internet a través de una Ruteador diferente. La comunicacion en la ubicacion actual a través del Ruteador diferente queda establecida comunicando al Ruteador local del MN, la direccion de comunicacion del Ruteador diferente como la direccion de comunicacion que corresponde a la ubicacion actual de MN. En consecuencia, una comunicacion de datos desde un nodo correspondiente (CN) a un MN seleccionado es comunicada al MN seleccionado accediendo a la Lista de Ubicacion de Nodos Moviles del Ruteador local del MN seleccionado para determinar la direccion de comunicacion correspondiente a la ubicacion actual del MN seleccionado y dirigiendo la comunicacion de datos a esa direccion de comunicacion determinada.

    A METHOD AND SYSTEM FOR A LOW-OVERHEAD MOBILITY MANAGEMENT PROTOCOL IN THE INTERNET PROTOCOL LAYER
    14.
    发明专利
    A METHOD AND SYSTEM FOR A LOW-OVERHEAD MOBILITY MANAGEMENT PROTOCOL IN THE INTERNET PROTOCOL LAYER 未知

    公开(公告)号：CA2704835A1

    公开(公告)日：2002-09-12

    申请号：CA2704835

    申请日：2002-02-14

    Applicant: INTERDIGITAL TECH CORP

    Inventor： SHAHRIER SHARIF M ,  CHITRAPU PRABHAKAR R

    IPC: H04L12/28 ,  H04W36/08 ,  C07C29/09 ,  C07C33/46 ,  C07C43/313 ,  C07C69/63 ,  C07D307/79 ,  H04L29/06 ,  H04L29/12 ,  H04W8/08 ,  H04W8/26 ,  H04W80/04 ,  H04W88/08

    Abstract: A system and method for supporting mobile Internet communication is provided which employs a plurality of Routers and a plurality of Mobile Nodes (MNs). Each Router has a unique communication address. Each MN is associated with a home Router. Each Router has an associated Mobile Node Location List identifying each MN for which the Router is the home Router and the communication address of a Router corresponding to a current location of each such MN. Each MN is movable from an old location where the MN communicates with the Internet via one Router to a current location where the MN communicates with the Internet via a different Router. Communication at the current location via the different Router is established by communicating to the MN's home Router the communication address of the different Router as the communication address corresponding to the MN's current location. Accordingly, a data communication from a corresponding node (CN) to a selected MN is communicated to the selected MN by accessing the Mobile Node Location List of the selected MN's home Router to determine the communication address corresponding to the selected MN's current location and directing the data communication to that determined communication address.

    Third generation fdd modem interleaver
    15.
    发明专利
    Third generation fdd modem interleaver 未知

    公开(公告)号：AU8063101A

    公开(公告)日：2002-03-26

    申请号：AU8063101

    申请日：2001-07-19

    Applicant: INTERDIGITAL TECH CORP

    Inventor： SHAHRIER SHARIF M

    IPC: H03M13/27 ,  H04J13/00 ,  H04L1/00

    Abstract: A method and apparatus are disclosed for deinterleaving expanded interleaved data blocks, particularly for use in a wireless telecommunications system such as provided by the Third Generation Partnership Project (3G) standard. The data is processed on a sequential element basis where each element has a pre-determined number of bits M which bits are contained in a block of sequential data words W'. The elements are extracted from the block of words W' in sequential order, each element being extracted from either a single or two sequential interleaved words within the set of words W'. The elements are stored in selective location within a set of words W of a deinterleaver memory such that upon completion of the extraction and writing of all the elements, the words W from the deinterleaver memory can be sequentially read out to correspond to an original data block of bits from which the block of interleaved elements was created. Additional conventional processing results in the contraction of the deinterleaved expanded words to reproduce the data block of bits in a receiver as originally designated for transmission in a transmitter.

    BI-DIRECTIONAL AND REVERSE DIRECTIONAL RESOURCE RESERVATION SETUP PROTOCOL
    16.
    发明专利
    BI-DIRECTIONAL AND REVERSE DIRECTIONAL RESOURCE RESERVATION SETUP PROTOCOL 未知

    公开(公告)号：CA2466144C

    公开(公告)日：2009-09-08

    申请号：CA2466144

    申请日：2002-11-01

    Applicant: INTERDIGITAL TECH CORP

    Inventor： SHAHRIER SHARIF M ,  SHAHEEN KAMEL M

    IPC: H04W76/02 ,  H04L12/56 ,  H04L12/66 ,  H04L47/724 ,  H04W28/26 ,  H04W80/00 ,  H04W92/02

    Abstract: The invention relates to establishing a wireless packet session between at least two users ( USER A and USER B ). At least one ( USER A or USER B ) of the users is a wireless user. A first of the at least two users send a reservation setup protocol (RSVP)PATH message (30) to a second user of the t wo users. The RSVP PATH message (30) includes information for reserving resourc es for transmissions from only the first user to the second user; or from the first user to the second user and the second user to the first user, or only for transmissions from the second user to the first user. In response to receiving the RSVP PATH message (30), the second user transmits a RSVP reservation (RESV) message (32) to the first user. Transmissions occur using the reserved resources.

    Optimized discrete fourier transform method and apparatus using prime factor algorithm
    17.
    发明专利
    Optimized discrete fourier transform method and apparatus using prime factor algorithm 未知

    公开(公告)号：HK1074269A1

    公开(公告)日：2005-11-04

    申请号：HK05108196

    申请日：2005-09-20

    Applicant: INTERDIGITAL TECH CORP

    Inventor： BUCHERT RYAN SAMUEL ,  SHAHRIER SHARIF M ,  BECKER PETER

    IPC: G06F20060101 ,  G06F17/14

    Abstract: An apparatus and method for DFT processing using prime factor algorithm (PFA) on a selected number P of midamble chip values received by a CDMA receiver, where P has a plurality M of relatively prime factors F, and the DFT process is divided into M successive F-point DFT processes. The P data values are retrieved from a single input port memory and selectively permuted by a controller into parallel caches to optimize factoring with associated twiddle factors stored in parallel registers. The permuted inputs are factored in two or more parallel PFA circuits that comprise adders and multipliers arranged to accommodate any size F-point DFT. The outputs of the PFA circuits are processed by consolidation circuitry in preparation for output permutation of the values which are sent to memory for subsequent DFT cycles.

    METHOD AND WIRELESS USER EQUIPMENT FOR ESTABLISHING A WIRELESS PACKET BASED SESSION BETWEEN USERS
    18.
    发明专利
    METHOD AND WIRELESS USER EQUIPMENT FOR ESTABLISHING A WIRELESS PACKET BASED SESSION BETWEEN USERS 未知

    公开(公告)号：HK1070778A1

    公开(公告)日：2005-06-24

    申请号：HK05103234

    申请日：2005-04-15

    Applicant: INTERDIGITAL TECH CORP

    Inventor： SHAHEEN KAMEL M ,  SHAHRIER SHARIF M

    IPC: H04L12/56 ,  H04L47/724 ,  H04W28/26

    Abstract: A method for reserving resources for a wireless packet-based session, the method comprising a first user sending a first resource reservation protocol message to a second user via a network comprising a plurality of routers for reserving resources for a packet-based session along a path to the second user; and the first user receiving a second resource reservation protocol message from the second user in response to the first resource reservation protocol message, wherein resources for communication in both directions to and from the second user are reserved by routers along the path as the second resource reservation protocol message traverses the network along the path.

    A METHOD AND SYSTEM FOR A LOW-OVERHEAD MOBILITY MANAGEMENT PROTOCOL IN THE INTERNET PROTOCOL LAYER
    19.
    发明专利
    A METHOD AND SYSTEM FOR A LOW-OVERHEAD MOBILITY MANAGEMENT PROTOCOL IN THE INTERNET PROTOCOL LAYER 未知

    公开(公告)号：HK1067476A1

    公开(公告)日：2005-04-08

    申请号：HK04110319

    申请日：2004-12-29

    Applicant: INTERDIGITAL TECH CORP

    Inventor： SHAHRIER SHARIF M ,  CHITRAPU PRABHAKAR R

    IPC: H04L12/28 ,  C07C29/09 ,  C07C33/46 ,  C07C43/313 ,  C07C69/63 ,  C07D307/79 ,  H04L20090101 ,  H04L29/06 ,  H04L29/12 ,  H04W8/08 ,  H04W8/26 ,  H04W80/04

    Abstract: The present invention provides a communication terminal configured as a Mobile Node, MN, for use in network system that supports mobile Internet communication and has a plurality of Routers each having a unique communication address via which MNs communicate with the Internet via different Routers at different locations where each Router has an associated Mobile Node Location List identifying each MN for which the Router is the home Router and the communication address of a Router corresponding to a current location of each such MN, the communication terminal characterized by: means for storing a unique host name and a home network identifier, HNI, that reflects an association with a home Router; and means for communicating to the terminal's home Router, when said terminal is moved from an old location where the terminal communicates with the Internet via one Router to a current location where the terminal communicates with the Internet via a different Router, the communication address of the different Router as the communication address corresponding to the terminal's current location whereby a data communication from a corresponding node, CN, to the terminal is communicated to the terminal using the terminal's HNI and unique host name by accessing the Mobile Node Location List of the terminal's home Router to determine the communication address corresponding to the terminal's current location and directing the data communication to that determined communication address.

Patent Agency Ranking