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    METHODS AND APPARATUS FOR DOWNLINK MACRO-DIVERSITY IN CELLULAR NETWORKS
    53.
    发明专利
    METHODS AND APPARATUS FOR DOWNLINK MACRO-DIVERSITY IN CELLULAR NETWORKS 未知

    公开(公告)号：CA2814253A1

    公开(公告)日：2004-08-12

    申请号：CA2814253

    申请日：2003-11-05

    Applicant: QUALCOMM INC

    Inventor： CORSON M SCOTT ,  KAPOOR SAMIR ,  LAROIA RAJIV ,  PARK VINCENT

    IPC: H04L12/701 ,  H04J11/00 ,  H04J13/00 ,  H04L12/28 ,  H04L12/56 ,  H04L12/851 ,  H04W24/00 ,  H04W36/18 ,  H04W40/00 ,  H04W40/02 ,  H04W84/12

    Abstract: The invention described herein enables a form of downlink macro-diversity in packet-switched cellular networks. It allows packets (650, 650', 652, 652', 654, 654', 656, 656', 658, 658', 660, 660', 662) to be selectively delivered from a network/internetwork to an end node (200), e.g., wireless communication device or terminal, over a set of available link-layer connections (402, 502) to/from the end node (200), through one or more access nodes (300, 300'), e.g., base stations. Downlink macro-diversity is particularly important when the link layer connections (402, 502) between the end node (200) and the corresponding access node (300, 300'), e.g., the access links, are subject to independent or partially correlated time variations in signal strength and interference. In accordance with the invention, the end node (200) dynamically selects a downlink (402, 502) to be used out of a set of available access links on a per packet basis subject to prevailing channel conditions, availability of air-link resources and other constraints. The invention improves the robustness and efficiency of communication, overall utilization of air-link resources, and quality of service experienced by the end node (200).

    Posicionamiento basado en radiodifusión para servicios de proximidad de dispositivo a dispositivo
    54.
    发明专利
    Posicionamiento basado en radiodifusión para servicios de proximidad de dispositivo a dispositivo 未知

    公开(公告)号：ES2869927T3

    公开(公告)日：2021-10-26

    申请号：ES14816529

    申请日：2014-12-01

    Applicant: QUALCOMM INC

    Inventor： HAMPEL GEORG ,  PARK VINCENT ,  WANG JIN-DER ,  LI JUNYI

    IPC: H04W64/00 ,  H04W76/14

    Abstract: Un método de comunicarse dentro de una red de comunicaciones de radio inalámbricas (100), comprendiendo la red al menos una estación base, al menos un equipo de usuario, EU, objetivo móvil, y una pluralidad de EU de punto de referencia móviles, cada uno de los EU de punto de referencia y objetivos es capaz de comunicarse con la estación base y unos con otros, comprendiendo el método: recibir, en un EU objetivo móvil (115a), una radiodifusión (135) que comprende una señal de referencia de cada uno de una pluralidad de EU de punto de referencia móviles (115), en donde un EU de punto de referencia (115) es un equipo de usuario con una ubicación conocida; identificar información de ubicación de cada uno de la pluralidad de EU de punto de referencia móviles (115); y determinar una ubicación del EU objetivo móvil (115a) basándose al menos en parte en la pluralidad de señales de referencia recibidas y la pluralidad de información de ubicación.

    Servicios de difusión y multidifusión multimedia continuos para dispositivos fuera de cobertura
    56.
    发明专利
    Servicios de difusión y multidifusión multimedia continuos para dispositivos fuera de cobertura 未知

    公开(公告)号：ES2647305T3

    公开(公告)日：2017-12-20

    申请号：ES14750849

    申请日：2014-07-22

    Applicant: QUALCOMM INC

    Inventor： WU ZHIBIN ,  PARK VINCENT ,  LI JUNYI

    IPC: H04W4/06 ,  H04B7/15 ,  H04W8/00

    Abstract: Un procedimiento para gestionar un servicio de difusión y multidifusión multimedia, MBMS, que comprende: recibir (305; 705; 805) contenido de un MBMS mientras funciona en un área de cobertura de una estación base (105); detectar (310; 710; 810) una transición para funcionar fuera del área de cobertura de la estación base (105); y difundir (715; 815) una señal de descubrimiento de pares (315) para pedir una retransmisión del contenido del MBMS, caracterizado por que la señal de descubrimiento de pares comprende (315) un identificador del MBMS.

    57.
    发明专利
    未知

    公开(公告)号：BRPI0616310A2

    公开(公告)日：2011-06-14

    申请号：BRPI0616310

    申请日：2006-09-15

    Applicant: QUALCOMM INC

    Inventor： TSIRTSIS GEORGE ,  CORSON M SCOTT ,  PARK VINCENT

    IPC: H04L12/28

    Abstract: Methods and apparatus for storing, manipulating, retrieving, and forwarding state, e.g., context and other information, used to support communications sessions with one or more end nodes, e.g., mobile devices, are described. Various features are directed to a end node controlling the transfer of state from a first access node to a second access node during a handoff operation thereby eliminating any need for state transfer messages to be transmitted between the second access node and the first access node during handoff or the use of a core network node to support state transfer. As part of a handoff state information is obtained by an end node from the current access node in encrypted form and then communicated to the new access node to which the handoff operation is to be completed. The new access node, e.g., base station decrypts the state information and then uses it to support communications with the end node. While the information is communicated to and from the end node over wireless links, since it is encrypted by the first access node it is secure and can be trusted by the receiving, e.g., target, access node.

    59.
    发明专利
    未知

    公开(公告)号：AT477696T

    公开(公告)日：2010-08-15

    申请号：AT06852016

    申请日：2006-12-20

    Applicant: QUALCOMM INC

    Inventor： DAS ARNAB ,  PARK VINCENT ,  HUSSAIN YUNUS ,  CELEBI SAMEL

    IPC: H04W72/12 ,  H04W4/06 ,  H04W24/10 ,  H04W28/12 ,  H04W74/08

    Abstract: Wireless terminals and base stations support multiple modes of dedicated control channel operation wherein wireless terminals are allocated different amounts of dedicated uplink resources for reporting control information. A set of dedicated control channel segments is utilized by a wireless terminal to communicate uplink control information reports to its serving base station attachment point. Full tone and split-tone modes of dedicated control channel operation are supported. In full tone mode, a single wireless terminal is allocated each of the dedicated control channel segments associated with a single logical tone. In split tone mode, dedicated control channel segments associated with a single logical tone are allocated between different wireless terminals, with each of the multiple wireless terminals receiving a different non-overlapping subset of the dedicated control channel segments. Logical dedicated control channel tones can be dynamically reallocated for full-tone mode use or split tone mode use.

    60.
    发明专利
    未知

    公开(公告)号：AT473570T

    公开(公告)日：2010-07-15

    申请号：AT06847976

    申请日：2006-12-20

    Applicant: QUALCOMM INC

    Inventor： LAROIA RAJIV ,  ANIGSTEIN PABLO ,  MAZIK DAVID ,  PARIZHSKY VLADIMIR ,  PARK VINCENT ,  SRINIVASAN MURARI ,  TSIRTSIS GEORGE

    IPC: H04L12/56 ,  H04L47/76 ,  H04L45/02 ,  H04L45/28 ,  H04W8/00

    Abstract: Methods and apparatus for using end nodes, e.g., wireless terminals, to discover base stations and communicate information about discovered access nodes, e.g., base stations, to other access nodes in a system are described. As the wireless terminal roams in the system and new access nodes are encountered, one or more physically adjacent access nodes will be informed of the presence of the new access node as a result of communications with the wireless terminal. A message indicating an access node's inability to route a message to another access node which is known to a wireless terminal may trigger the wireless terminal to begin the process of updating access node routing and neighbor information.

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