Abstract:
PROBLEM TO BE SOLVED: To provide group communications methods and apparatus for conserving resources. SOLUTION: A multicast operation is supported with transmission characteristics, such as transmission power level, coding rate, and/or modulation method being selected to reliably communicate information to end nodes in the group. Thus, resources can be conserved by matching transmission requirements with information on requirements of one or more group members. The requirements for reliably reaching the end node with the worst channel conditions can determine the group transmission requirements. Also, the requirement can be used for determining the group transmission requirements, and power level and other transmission resource allocations can change in response to changes in group membership and/or conditions corresponding to existing group members. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide systems and methodologies that facilitate supporting multiple connections associated with a wireless terminal.SOLUTION: Notifications may be provided to a primary base station upon establishment and/or removal of connections between the wireless terminal and secondary base stations. Additionally, the multiple connections may be evaluated and a preferred connection among the set of multiple connections may be utilized to transfer data to the wireless terminal over a downlink connection.
Abstract:
PROBLEM TO BE SOLVED: To provide a method and a device that allow soft handoff to be implemented without necessitating duplication of data transmissions to a plurality of base stations. SOLUTION: Each mobile terminal device 302 can support a plurality of independent timing loops and/or different control loops on a base station-by-base station basis, thereby allowing the connections to operate independently and in parallel. Different control signals and/or data are transmitted through established and independent connections with base stations 304, 306. In this way, the base stations 304, 306 perform reception of different pieces of data that allow asynchronous data transmission. The data received by the base stations 304, 306 can be provided to a wired asymmetric network without necessitating synthesis of the received data before the data is provided to the wired network. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide functionality such as treating packets associated with identified traffic flows with different quality of service levels to meet the requirements of various traffic flows.SOLUTION: A base station determines a configuration of a wireless terminal, intended to support a specific traffic flow and sends a configuration command to the wireless terminal. The base station may determine one or more parameters associated with classification, queue management, scheduling, and/or automatic repeat request, and then send a configuration command to the wireless terminal instructing it to implement configuration operation. In some embodiments, a wireless terminal sets the value of an internal parameter to a value directly provided by the base station in a configuration command. In some embodiments, a wireless terminal determines and sets the value of an internal parameter as a function of information included in the configuration command from the base station.
Abstract:
PROBLEM TO BE SOLVED: To provide a method and apparatus for wireless network connectivity.SOLUTION: Methods and apparatus which allow a wireless terminal (302) to simultaneously maintain connections with multiple base stations (304, 306) are described. Each wireless terminal (302) is capable of supporting multiple separate timing loops and/or other control loops for each base station connection, thereby allowing the connections to operate independently and in parallel. Different control signals and/or data are transmitted on each connection that is established with a base station (302, 306). In this manner, base stations (302, 306) receive different data allowing asynchronous data transmission. The data received by the base stations (302, 306) can be supplied to a wired asynchronous network (308) without the need to combine the received data prior to supplying it to the wired network (308). The communications techniques of the invention can be used to implement soft handoffs without the need to duplicate data transmissions to multiple base stations.
Abstract:
PROBLEM TO BE SOLVED: To implement soft handoffs without the need to duplicate data transmissions to multiple base stations.SOLUTION: Methods and apparatus which allow a wireless terminal to simultaneously maintain connections with multiple base stations are provided. Each wireless terminal 302 is capable of supporting multiple separate timing loops and/or other control loops for each base station connection thereby allowing the connections to operate independently and in parallel. Different control signals and/or data are transmitted on each connection that is established with base stations 304, 306. In this manner, the base stations 304, 306 receive different data allowing asynchronous data transmission. The data received by the base stations 304, 306 can be supplied to a wired asynchronous network without the need to combine the received data prior to supplying it to the wired network.
Abstract:
Methods and apparatus for establishing communication links, used to support communications sessions with one or more end nodes, e.g., mobile devices, are described. Various features are directed to a mobile node controlling the establishment of initial links to a first access node and the establishment of new links from a first access node to a second access node during a handoff operation using highly efficient messages and signal.
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).
Abstract:
Un procedimiento (902) para hacer funcionar un primer nodo de comunicaciones (104) en una red de comunicación inalámbrica entre pares, que comprende: recibir (908) un primer mensaje (310) desde un segundo nodo de comunicaciones (102) con el cual existe una relación de confianza, incluyendo el primer mensaje (310) la información de verificación de fuente de mensaje y un identificador de mensaje que identifica un segundo mensaje (303) enviado desde el segundo NODO de comunicaciones (102) a un tercer nodo de comunicaciones (106); y transmitir (914) un tercer mensaje (322) al tercer NODO de comunicaciones (106) con el que existe una relación de confianza, incluyendo el tercer mensaje (322) información de verificación de fuente de mensaje y dicho identificador de mensaje.
Abstract:
Un procedimiento de implementación de una transferencia de un terminal inalámbrico (302) entre una primeraestación base (304) y una segunda estación base (306), comprendiendo el procedimiento: comunicarse con la primera estación base (304); establecer una conexión con la segunda estación base (306); transmitir, en paralelo, diferentes señales de comunicaciones a dichas estaciones base primera y segunda(304, 306), caracterizado por usar diferentes momentos de inicio de la transmisión de símbolos cuando se transmiten símbolos querepresentan diferentes señales de comunicaciones a dichas estaciones base primera (304) y segunda(306).