Patents Examined by Thien D Tran
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Patent number: 7142522Abstract: A satellite telecommunication system includes a plurality of user stations and at least one satellite. A resource manager for the satellite telecommunication system includes a congestion controller that assigns resources to uplinks, a demand assignment device that assigns resources to uplinks, and, for each satellite, a central entity that includes a subsystem of the congestion controller adapted to receive requests sent by user stations using the satellite, each request expressing the bit rate necessary for a group of connections supported by a user station and by the same downlink of the satellite, and to determine the bit rate authorized for the group of connections. It further includes, for each satellite, a subsystem of the demand assignment device adapted to allocate resources to an uplink, at each user station, as a function of the bit rates authorized by the congestion controller subsystem and globally for all connections supported by the user station.Type: GrantFiled: July 12, 2001Date of Patent: November 28, 2006Assignee: AlcatelInventors: Cédric Baudoin, Laurence Bignebat, Stéphane Combes, Pierre Parmentier, Laurent Roullet, Tarif Zein Al-Abedeen
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Patent number: 7142555Abstract: Data cells arriving in a switching unit are routed to virtual output queues. Load balancing method selects switching elements based on a dynamic utilization tracked by request virtual output queues that store switching requests from the virtual output queues.Type: GrantFiled: March 22, 2002Date of Patent: November 28, 2006Assignee: Mindspeed Technologies, Inc.Inventor: Yuanlong Wang
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Patent number: 7133406Abstract: Packets being transmitted through a communication network are recognized as belonging to various individual flows. A property of each individual flow is measured by adding a value, such as a unity value or a packet length value, to a cumulative sum when each packet in the individual flow is recognized, and subtracting a fixed value from the cumulative sum at unit time intervals. The packets are prioritized according to the cumulative sum. This scheme enables network resources to be used preferentially for individual flows that do not cause congestion.Type: GrantFiled: March 25, 2002Date of Patent: November 7, 2006Assignee: Oki Electric Industry Co., Ltd.Inventor: Ryohei Konuma
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Patent number: 7126966Abstract: The invention relates to a method for identifying base stations of a time division cellular network in a mobile station. An object of the invention is to speed up the identification of new base stations. In accordance with the invention frame timing difference data for the neighbor base stations (301) and/or the broadcast control channel time slot data for the neighbor base stations are transmitted from the serving base station to the mobile station; reception times for the neighbor base stations' system data are determined in the mobile station on the basis of said frame timing differences and/or the broadcast control channel time slot data (302) and system data are read and neighbor base stations are identified (303). The invention is also directed to a mobile station applying the method.Type: GrantFiled: September 19, 2002Date of Patent: October 24, 2006Assignee: Nokia Mobile Phones, LTDInventors: Harri Jokinen, Pekka Ranta
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Patent number: 7116657Abstract: A system and method for establishing a long distance call connection between call stations over the PSTN initiates a call connection request from a desktop application adapted to operate locally on a user workstation. The desktop application communicates call connection information to a long distance service provider server without requiring a web browser when a request is initiated by a user. Call connection information is processed by the long distance service provider server and an information packet is sent to a call controller, to effect a call connection over the PSTN via a TDM toll switch. A communication connection with the long distance service provider server is automatically established by the desktop application when a request is initiated, and subsequently released when the call connection request is received and processed by the long distance service provider.Type: GrantFiled: August 22, 2000Date of Patent: October 3, 2006Assignee: Internet Operator (Asia) Pte. Ltd.Inventor: Alexander C. Lang
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Patent number: 7103055Abstract: A network switch for network communications, wherein the network switch includes at least one data port interface supporting a plurality of data ports transmitting and receiving data at a first data rate and a second data rate. The at least one data port interface includes an ingress logic circuit in communication with the at least one data port interface for generating at least one of an ingress address resolution and a filtering search request. A CPU interface is provided and configured to communicate with a CPU. A shared hierarchical memory structure including an internal memory in communication with the at least one data port interface, and an external memory in communication with a memory management unit via an external memory interface is provided. A communication channel is provided for communicating data between the at least one data port interface, the internal memory, the CPU interface, and the memory management unit.Type: GrantFiled: June 18, 2002Date of Patent: September 5, 2006Assignee: Broadcom CorporationInventors: Shiri Kadambi, Mohan Kalkunte, Shekhar Ambe
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Patent number: 7099282Abstract: Empirically derived models are used to relate user perception to objectively measurable characteristics, under a criterion of nearly perfect co-variance between predicted MOS values and the variations in the values of the objectively measurable characteristics. In the example context of evaluating packet switched telephony service, the present invention eliminates the need to perform subjective tests to characterize each combination of codec type and transmission protocol.Type: GrantFiled: May 30, 2001Date of Patent: August 29, 2006Assignee: MCI, Inc.Inventor: William Christopher Hardy
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Patent number: 7099290Abstract: To address the need for an apparatus and method for CDMA-dispatch soft handoff, the present invention provides soft handoff to mobile stations (MSs) (120–123) in a dispatch call by sharing soft handoff information with all the MSs in the call at a base site (111). When a first MS (e.g., 120) needs to soft handoff, the identity of a soft handoff channel (135) at an adjacent base site (112) is shared with all the MSs. Thus, subsequent MSs (e.g. 122) that need to soft handoff to that adjacent base site may do so without requesting a soft handoff.Type: GrantFiled: December 20, 2001Date of Patent: August 29, 2006Assignee: Motorola, Inc.Inventors: Michael L. Needham, Timothy J. Wilson, Leigh M. Chinitz
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Patent number: 7099322Abstract: The invention relates to a method for allocating at least one identifier known as routing identifier to at least one bridge of a network, the bridge comprising at least two interconnection equipment a first of which is connected to at least one first part of the said network, characterized in that each one of the interconnection equipment of the said bridge being in a “state” determined by reference to the allocation of an identifier to this interconnection equipment, the method includes the steps of determination of at least one “state” which corresponds to the “state” of the at least one second interconnection equipment of the bridge, and deciding as to the allocation of an identifier to the at least one first interconnection equipment of the bridge as a function of the at least one determined “state”.Type: GrantFiled: March 27, 2000Date of Patent: August 29, 2006Assignee: Canon Kabushiki KaishaInventors: Laurent Frouin, Jean-Paul Accarie, Yacine Smail El Kolli, Falk Tannhauser
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Patent number: 7099300Abstract: A radio transmission apparatus and a radio transmission method for readily controlling retransmission timing presets a frame cycle for retransmission, and transmits only packets for which no acknowledgement of receipt has been received within the frame cycle as a reply from a receiving apparatus to a transmitting apparatus. Thus, timing for retransmission can be readily determined. Also, the retransmission timing is determined based on when a packet is actually transmitted. Therefore, multiple acknowledgements of receipt can be returned as a combined reply.Type: GrantFiled: February 25, 2002Date of Patent: August 29, 2006Assignee: Sony CorporationInventor: Shigeru Sugaya
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Patent number: 7095760Abstract: A technique for disguising ATM cells as ATM cell-containing packets within a routing facility to permit the packet-only switch to also handle switching of the ATM cells. The technique has wide applications within the backbone infrastructure, Wide Area Networks, Metro Area Networks, Local Area Networks, and particularly within a routing facility to handle high speed traffic. The technique can receive both ATM cells and packets for switching via a single channel or optical fiber or receive ATM cells and packets via two separate channels or two separate fibers. The ability to handle both ATM cell and packet switching allows packet-only routers to handle ATM traffic, thereby reducing the cost of the switching infrastructure for network operators.Type: GrantFiled: March 30, 2000Date of Patent: August 22, 2006Assignee: Cortina Systems, Inc.Inventors: Bidyut Parruck, Joseph A. Nguyen, Chulanur Ramakrishnan
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Patent number: 7085291Abstract: An enhanced radio link protocol (RLP) in a wireless access network that is network aware is disclosed. The RLP increases radio link quality by various ARQ mechanisms. The RLP framing structure is included that supports and enables at least network layer packet boundary detection, dynamic and adaptive ARO schemes for QoS support on a per-packet basis, and a flexible RLP frame structure for fast adaptation to physical layer channel rate/RLP frame sizes. Optional uses include supporting negative acknowledgment (NAK) based ARQ.Type: GrantFiled: July 5, 2001Date of Patent: August 1, 2006Assignee: Nortel Networks LimitedInventors: Hang Zhang, Mo-han Fong
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Patent number: 7085284Abstract: A channel access system is described in which a number of slots within a contention window are available for assignment to streaming data transmitters. The other slots are selected by the other transmitters according to a CSMA/CA transmit protocol.Type: GrantFiled: November 3, 2000Date of Patent: August 1, 2006Assignee: Proxim, Inc.Inventor: Kevin Negus
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Patent number: 7085295Abstract: Techniques to search for pilots over code space in a CDMA system. In one aspect, the pilot search is performed using a number of substages, and the search windows for each substage are selected such that the relevant code space is searched while reducing search time. In one specific implementation, two substages are used to search for pilots. The detect substage searches through (e.g., fixed-size) search windows to detect for peaks in the received signal. The dwell substage then searches through (e.g., variable-size) search windows to re-evaluate the detected peaks and remove noise peaks. The dwell windows may be formed such that a code space as small as possible is searched (to reduce search time) but large enough to account for possible drift in the detected peaks. Variable number of peaks may be provided by the dwell substage for the variable-size dwell windows.Type: GrantFiled: October 25, 2001Date of Patent: August 1, 2006Assignee: Qualcomm IncorporatedInventors: Remi Gurski, Serguei A. Glazko, Raghu Challa
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Patent number: 7075937Abstract: This method applies to the transmission of information during a communication session, on a network having at least one switch, over at least one path between a so-called “source” node and a so-called “destination” node. The network is adapted to transmit data according to at least one connected mode and at least one non-connected mode. The session includes the transmission of at least one packet including on the one hand “user” data and on the other hand additional data defining notably the path on the said network which the said user data will follow. Each time a packet is received, the destination node performs: an operation of reading the said additional data (601), and an operation of determining the transmission mode (602), connected or non-connected, taking into account at least some of the said additional data.Type: GrantFiled: May 19, 1999Date of Patent: July 11, 2006Assignee: Canon Kabushiki KaishaInventor: Yacine Smail El Kolli
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Patent number: 7072358Abstract: Data are transmitted between a core network (CN) and at least one access system (BSS) of a GSM based access system type via an Iu interface (Iu-I/F). Also, the present invention aims to provide accordingly adapted network elements. By virtue of the present invention, substantial savings concerning resources can be obtained by supporting data formats of GSM coded speech on the open, i.e., not network operator proprietary, Iu interface according to UMTS/3rd generation specifications. Thus, GSM transcoders and 3rd generation transcoders as well as GSM base station controllers and 3rd generation radio network controllers can be integrated, so that the same hardware resources can be used for both systems, i.e., for GSM as well as for 3rd generation.Type: GrantFiled: November 28, 2001Date of Patent: July 4, 2006Assignee: Nokia CorporationInventor: Jyri Suvanen
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Patent number: 7058019Abstract: There is provided a method of transmitting data between compact control stations using the Ethernet, including a network matching unit generation steps of separately generating the function of a network matching unit of each compact control station according to a data transmission function and data reception function, a data reception step of, when the network matching unit of one of the compact control stations is generated to have the data reception function at the network matching unit generation step, receiving operation maintenance data from the network matching unit of the other compact control station through TCP/IP communication using the Ethernet, and a data transmission step, when the network matching unit of one of the compact control stations is generated to have the data transmission function at the network matching unit generation step, transmitting control data and the operation maintenance data to the network matching unit of the other compact control station through TCP/IP communication usingType: GrantFiled: February 20, 2001Date of Patent: June 6, 2006Assignee: UTStarcom Inc.Inventors: Seong Wook Park, Jung Sook Kang, Jeong Bae Seo
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Patent number: 7050461Abstract: Packet buffer equipment in which a buffer and time for packet assembly is utilized for packet header analysis and addition processing to obtain increased efficiency. The equipment aims to receive virtual channel (VC)-multiplexed ATM cells to assemble into a packet on a VC basis maintaining each received cell, to output on a packet basis. As an embodiment, cells are assembled into a packet by storing cells from the top cell to the end cell into a packet buffer memory consisting of a plurality of cell buffers to store cells. Also, a sequence controller is provided for detecting the write completion of a new header cell, and for connecting a packet in packet-under-assembly queue constituted by under-assembly pointer into an output-wait queue.Type: GrantFiled: March 22, 2001Date of Patent: May 23, 2006Assignee: Fujitsu LimitedInventors: Hideo Abe, Yoshio Tamura, Yuichirou Chikamatsu
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Patent number: 7050395Abstract: A method and apparatus for disabling a data interface between network element data processing units is described. In one embodiment, the method includes transmitting data frames over a data connection through an interface of a first network element data processing unit to a second network element data processing unit, disabling the interface, receiving an interface disable signal, completing transmission of data frames currently being transmitted, upon receiving an interface disable signal, disabling the interface, the disabling not causing data loss, receiving acknowledgements over the data connection, and enabling the data connection after receiving a number of acknowledgements.Type: GrantFiled: November 30, 2001Date of Patent: May 23, 2006Assignee: Redback Networks Inc.Inventors: Felix Chow, David Stiles
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Patent number: 7046633Abstract: A router coupled to a plurality of external links transporting data packets to and from the router. Embodiments of the router including a plurality of fabric routers interconnected by fabric links forming or capable of forming a Gamma graph interconnection network. One or more external links are coupled to each fabric router allowing the routing of packets between external links by traversing one or more hops across the fabric links. The Gamma graph interconnection network of the router providing for high port counts and increased bandwidth availability. Furthermore, the use of industry standard buses, such as Infiniband buses, allow for the interconnection of multiple heterogeneous application specific modules to interface and communicate with one another.Type: GrantFiled: July 12, 2001Date of Patent: May 16, 2006Assignee: Avici Systems, Inc.Inventor: Philip P. Carvey