Patents Issued in August 2, 2007
-
Publication number: 20070177494Abstract: There is provided with a radio communication method in which an OFDMA scheme is used for communication from a base station to radio terminals, including: transmitting classification information for classifying the radio terminals under any one of a plurality of groups from the radio terminals to the base station; determining groups under which the radio terminals are to be classified; determining frequency channels to assign to the radio terminals; distributing slots to the groups; notifying each of the radio terminals of the control information representing a slot format, the channel assigned to the radio terminal and positions of slots; creating slot data including a plurality of symbol in each slot position; OFDM-modulating the respective symbols included in the slot data to generate a plurality of OFDM symbols; transmitting the plurality of OFDM symbols as OFDM slot data, from the base station to the radio terminals belonging to the group.Type: ApplicationFiled: September 22, 2006Publication date: August 2, 2007Applicant: Kabushiki Kaisha ToshibaInventor: Takeshi TOMIZAWA
-
Publication number: 20070177495Abstract: An ultra-wideband (UWB) system and method provide a local area network (LAN) and/or LAN access. LAN access versions of the UWB system includes an emulator layer and bridge that allow data to be transmitted between a LAN-UWB hybrid device and a LAN network switch, such as an IEEE 802 network switch, through in part a UWB node of a UWB WPAN that can receive UWB super-frames from the LAN-UWB hybrid device. In some implementations the LAN-UWB hybrid device uses WiFi protocol layers above the emulator layer and a WiNet Peer IP PAL layer below the emulator layer.Type: ApplicationFiled: January 29, 2007Publication date: August 2, 2007Applicant: LEVITON MANUFACTURING CO., INC.Inventor: Julius Ametsitsi
-
Publication number: 20070177496Abstract: A method of decoding channelisation code set information to determine the number P of channelisation codes and the code offset O in a spread spectrum data transmission, wherein the channelisation code set information 32 includes a first group of bits encoding the number of channelisation codes and a second group of bits encoding the code offset, the method including the steps of: deriving (30-40) the number P of channelisation codes according to P = C + ? m - A n ? ; and deriving (42-48) the code offset O according to O = ? P n ? × ( m - 2 ? B ) + ( B + 1 ) ; where m is the maximum number of multicodes allocated from the spread spectrum data transmission, n = ? m 2 ? + 1 , A is the value of the first group of bits of the channelisation code set information, B is the value of the second group of bits of the channelisation code set information, and C = A + ? B m - A ? × ( m - 2 ? A ) .Type: ApplicationFiled: June 7, 2005Publication date: August 2, 2007Inventor: Phong Nguyen
-
Publication number: 20070177497Abstract: A method for implementing broadcast or multicast traffic on a resilient packet ring (RPR) and a device using the method, the method including: when broadcast or multicast traffic is transmitted, the source site of the broadcast or multicast traffic decides whether the RPR where the site is located works normally; if the RPR works normally, transmit the broadcast or multicast traffic adopting a unidirectional broadcast/multicast manner; otherwise, according to the information of protection of the RPR, transmit the broadcast or multicast traffic adopting a bidirectional broadcast/multicast manner. The device includes a ring network topology discovery and protection sub-module and a broadcast/multicast control sub-module. The ring network topology discovery and protection sub-module controls the broadcast/multicast control sub-module to select a manner of broadcast/multicast through a trigger signal.Type: ApplicationFiled: January 10, 2007Publication date: August 2, 2007Applicant: Huewei Technologies Co., Ltd.Inventor: Xingyue Quan
-
Publication number: 20070177498Abstract: A method and apparatus are provided for implementing speculative credit flow control in a data communications link. A receiving node selects and sends a number of speculative credits as part of a total number of credits sent to a transmitting node. The receiving node receives and processes communications from the transmitting node. The receiving node dynamically determines when a change is needed for the number of speculative credits and updates the number of speculative credits. The number of speculative credits is selected for optimizing performance on the communications link.Type: ApplicationFiled: February 1, 2006Publication date: August 2, 2007Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Scott Clark, Jeffrey Ruedinger
-
Publication number: 20070177499Abstract: By reviewing incoming packets, the network connectivity of a network access site may be determined. The review can be passive where incoming packets are reviewed and no additional network traffic is generated or the review may be active where packet probes are sent to locations and the response are reviewed to determine connectivity.Type: ApplicationFiled: January 31, 2006Publication date: August 2, 2007Applicant: MICROSOFT CORPORATIONInventors: Alexandru Gavrilescu, Tin Qian
-
Publication number: 20070177500Abstract: The present invention provides a method of radio resource allocation. The method comprises associating a plurality of mobile units with a corresponding plurality of scheduling states based on at least one radio resource parameter and at least one rule, associating each mobile unit with one allocation state based on the plurality of scheduling states associated with the mobile units, and allocating radio resource to at least one mobile units based on the allocation states.Type: ApplicationFiled: July 11, 2006Publication date: August 2, 2007Inventors: Jiang Chang, Jun Qiang Liu, Wen Tao Zhang
-
Publication number: 20070177501Abstract: The invention provide methods for classifying user equipments (UEs) communicating with a serving base station (Node B) according to their experienced average interference in subsets of frequency or time resources. The classification utilizes existing channel quality indication (CQI) reports the UEs send to their serving Node B for the purposes of data scheduling. Multiple CQI reports are averaged to practically eliminate short term variations caused by fast fading and capture the long term interference and signal-to-interference and noise ratio (SINR) that the UEs experience. By capturing this average interference and SINR, a reference Node B can apply interference co-ordination through fractional frequency reuse or fractional time reuse.Type: ApplicationFiled: January 25, 2007Publication date: August 2, 2007Applicant: Texas Instruments IncorporatedInventor: Aris Papasakellariou
-
Publication number: 20070177502Abstract: There is provided a communication apparatus capable of increasing throughput even when the loss rate is high, without special congestion information being notified from a network. A congestion determination section determines whether the current state is light/heavy congestion from ACK packets and the content stored in a session state storage section, and hands the processing to a network state estimation section or a normal transfer section according to the result of the determination. The network state estimation section estimates the network congestion state from ACK packets and the content stored in the session state storage section. A light/heavy congestion determination section determines whether the state is light congestion or heavy congestion from the result of the estimation by the network state estimation section, and hands the processing to a resending determination section or a heavy congestion resending section according to the result of the determination.Type: ApplicationFiled: December 14, 2006Publication date: August 2, 2007Inventor: Takayuki Hama
-
Publication number: 20070177503Abstract: The present invention provides a method of call admission to a wireless network. The method may include accessing quality of service information associated with a voice application associated with an access terminal in response to receiving a call session request from the access terminal. The method may also include determining whether to admit the requested call session based on the quality of service information associated with the voice application.Type: ApplicationFiled: January 31, 2006Publication date: August 2, 2007Inventors: Christopher Mooney, David Rossetti, Jialin Zou
-
Publication number: 20070177504Abstract: A hub apparatus is disclosed that includes plural input ports; a policer unit that monitors the input bandwidth of the input ports and controls acquisition and discarding of input packet data input via the input ports, the policer unit including plural policers assigned to the input ports that have input token buckets for accumulating input tokens; a packet multiplexer that multiplexes the input packet data acquired by the policer unit; a shaper that transmits the multiplexed packet data at equal intervals according to an output bandwidth, the shaper including an output token bucket that accumulates output tokens up to a predetermined amount; and a surplus token recycling unit that recycles surplus tokens exceeding the predetermined amount that are generated at the output token bucket of the shaper by distributing the surplus tokens to the input token buckets of the policers of the policer unit.Type: ApplicationFiled: January 24, 2007Publication date: August 2, 2007Applicant: FUJITSU LIMITEDInventors: Kouichi Iwata, Shinya Yonemoto, Kazuaki Yoshida
-
Publication number: 20070177505Abstract: A method for creating a path for data transmission in a network determines the reliability rate of each of a plurality of network elements, and selects a network element with a reliability ability rate above a threshold value. The method enables a path including the selected network element for data transmission.Type: ApplicationFiled: January 30, 2007Publication date: August 2, 2007Applicant: SIEMENS AKTIENGESELLSCHAFTInventors: Pedro Miguel Charrua, Eduardo Jose Mendes
-
Publication number: 20070177506Abstract: A method and system for calculating data traffic flow in a communications network are disclosed. The communications network comprises a plurality of nodes including a plurality of source nodes, a plurality of destination nodes, and a plurality of intermediate nodes. Each of the intermediate nodes includes at least one elbow comprising one ingress interface and one egress interface of the intermediate node. The method includes obtaining local data traffic measurements at each of the elbows, wherein the local data traffic measurements comprise data traffic arriving at the intermediate node via the ingress interface and leaving the intermediate node via the egress interface. The local data traffic measurements are used in calculation of the traffic flow and may be used, for example, to generate data traffic matrix information using data traffic matrix inference or data traffic matrix estimation.Type: ApplicationFiled: February 1, 2006Publication date: August 2, 2007Applicant: CISCO TECHNOLOGY, INC.Inventors: Joshua Singer, Hani El-Sakkout, Vassilios Liatsos, Frederick Serr
-
Publication number: 20070177507Abstract: The present invention provides a method, system, and computer program product for providing a network-based software application to a customer that includes providing the application at a service provider's site, providing over the network access to the application to a customer's site, and providing traffic management function(s) at either, or both, of an application front end (AFE) and an application internet gateway (AIG) that are located at the provider's and customer's sites, respectively.Type: ApplicationFiled: February 2, 2006Publication date: August 2, 2007Applicant: International Business Machines CorporationInventor: Kavita Chavda
-
Publication number: 20070177508Abstract: A method and apparatus for calculating a cost index in a communication network. In one embodiment, a plurality of first cost factors associated with a first set of network elements is obtained. Subsequently, a plurality of second cost factors associated with a second set of network elements is obtained. A first cost index is then determined based on the plurality of first cost factors associated with the first set of network elements. Similarly, a second cost index is determined based on the plurality of second cost factors associated with the second set of network elements. Afterwards, the first cost index is compared to the second cost index to determine a point in time when a service provider should minimize new investment in the first set of network elements.Type: ApplicationFiled: January 31, 2006Publication date: August 2, 2007Inventors: Marian Croak, Hossein Eslambolchi
-
Publication number: 20070177509Abstract: A method and apparatus for calculating a cost index in a communication network are described. In one embodiment, a plurality of cost factors associated with a first network operation mode is obtained. A plurality of second cost factors associated with a second network operation mode is subsequently obtained. A first cost index is then determined based on the plurality of cost factors associated with the first network operation mode. Likewise, a second cost index is determined based on the plurality of cost factors associated with the second network operation mode. Afterwards, the first cost index is compared to the second cost index to determine whether a recommendation for an implementation of the second operation mode is warranted.Type: ApplicationFiled: January 31, 2006Publication date: August 2, 2007Inventors: Marian Croak, Hossein Eslambolchi
-
Publication number: 20070177510Abstract: A mobile communications system includes a first base station to service a first set of connections from a first set of mobile communications devices to a communications network. A set of neighboring base stations is in communication with the first base station. In an embodiment of the invention, the first base station prioritizes the first set of connections according to first predetermined criteria and prioritizes the set of neighboring base stations according to second predetermined criteria. The prioritization lists are used in deterministic ways to alleviate potential congestion in backhaul links and optimize the overall performance of system and improved quality of service.Type: ApplicationFiled: January 31, 2006Publication date: August 2, 2007Inventors: Kadathur Natarajan, Dragan Boscovic, Gerald Gutowski
-
Publication number: 20070177511Abstract: An ad-hoc network includes an ad-hoc network coordinator (NC) having a first processor, a first memory, and a first communication interface; and a plurality of ad-hoc network devices (NDs). Each of the NDs includes a second processor, a second memory, and a second communication interface structured to communicate with the first communication interface of the NC or with the second communication interface of at least another one of the NDs. The first processor cooperates with at least some of the NDs to globally optimize a route based on a plurality of link costs for: (i) pairs of the NDs, or (ii) pairs of the NDs and at least one pair including one of the NDs and the NC, in order to minimize cost along the route that: (a) one of the NDs or the NC employs to send a packet to: (b) another one of the NDs or the NC.Type: ApplicationFiled: February 2, 2006Publication date: August 2, 2007Inventors: Sujit Das, Luis Pereira
-
Publication number: 20070177512Abstract: The solution to the shortest path between a source node and multiple destination nodes is accelerated using a grouping of nodes, where the nodes are grouped based on distance from the source node, and a corresponding set of memory locations that indicate when a group includes one or more nodes. The memory locations can be quickly searched to determine the group that represents the shortest distance from the source node and that includes one or more nodes. Nodes may be grouped into additional groupings that do not correspond to the set of memory locations, when the distance from the source node to the nodes exceeds the range of memory locations. Advantageously, the disclosed system and method provide the ability to reach asymptotically optimal performance.Type: ApplicationFiled: February 2, 2007Publication date: August 2, 2007Applicant: Applied Micro Circuits CorporationInventor: Cedell A. Alexander
-
Publication number: 20070177513Abstract: A method, apparatus, computer program product and arrangement for testing radio network data connections. The method comprises establishing, by means of radio network terminals, simultaneous data connections in accordance with the TCP/IP (Transmission Control Protocol/Internet Protocol) protocol or the UDP/IP (User Datagram Protocol/Internet Protocol) protocol from the host computer to at least one server connected to the radio network. This is performed by establishing beach data connection from the host computer to a different public IP (Internet Protocol) address of the server, and dynamically establishing a dedicated unambiguous route for each data connection, whereby the data connections to different IP addresses travel along different routes via different terminals and their air interfaces. Each established data connection may be measured separately.Type: ApplicationFiled: March 22, 2005Publication date: August 2, 2007Applicant: Nemo Technologies OYInventor: Jari Kuokkanen
-
Publication number: 20070177514Abstract: VoIP verification is initiated by subscriber-side test VoIP appliance, or VoIP proxy agent. Test VoIP appliance is coupled to test node over a communications internetwork by upstream and downstream datapaths. VoIP verification request is transmitted to test node. Responsively, test node transmits VoIP verification signal to test VoIP appliance. Perceivable indication of verification signal received by VoIP appliance is effected by visual display, audible indication, or both. Operational state verifier apparatus is disposed in a digital telephony device, a computer terminal, or with an ATA interface coupled to analog telephony device used in VoIP communications system.Type: ApplicationFiled: February 2, 2006Publication date: August 2, 2007Inventors: Kendra Harrington, Matthew McRae, Allen Huotari
-
Publication number: 20070177515Abstract: A time division multiple access (TDMA) controller and method for operating the same includes a frame position module that generates a frame position signal. The controller also includes a signal module that generates a signal-on signal and a signal-off signal and a comparison module that generates a timing control signal based on the frame position signal, the signal-on signal and the signal-off signal.Type: ApplicationFiled: October 12, 2006Publication date: August 2, 2007Applicant: Marvell International Ltd.Inventors: Xuan Zhou, Shiyi Zhu, Robin Zhang, Jun Yin
-
Publication number: 20070177516Abstract: A transmission apparatus includes: a plurality of signal transmission circuits on a transmission path; a monitoring unit that detects a fault by monitoring an operating status of each of the signal transmission circuits; a controlling unit that outputs a reset instruction when the monitoring unit detects the fault; and an individual resetting unit that receives the reset instruction and resets individually each of the signal transmission circuits.Type: ApplicationFiled: June 13, 2006Publication date: August 2, 2007Applicant: FUJITSU LIMITEDInventors: Takashi Nakajima, Kazuaki Kobayashi, Kazumaro Takaiwa, Masahiro Agata, Yoshihisa Funami, Yuichi Kotaki
-
Publication number: 20070177517Abstract: A communication system according to the present invention includes a first communication apparatus and a second communication apparatus. The first communication apparatus includes a test data generation unit, a packet generation unit and a transmitter unit. The test data generation unit is configured to generate test data. The packet generation unit is configured to having a payload and an error check data in response to a test packet transfer request. The payload contains the test data generated by the test data generation unit. The error check data is used to detecting a digital error occurred in the payload. The transmitter unit is configured to send the test packet. The second communication apparatus is configured to send the test packet transfer request to the first communication apparatus, and to verify quality of the test packet received from the first communication apparatus according to the error check data.Type: ApplicationFiled: January 5, 2007Publication date: August 2, 2007Applicant: NEC ELECTRONICS CORPORATIONInventor: Masao MANABE
-
Publication number: 20070177518Abstract: The need to monitor real time network services has prompted service providers to use new measurement technologies, such as service-specific probes. A service-specific probe is an active probe that closely mimics the service traffic so that it receives the same treatment from the network as the actual service traffic. Service-specific probes are end-to-end and their deployment depends on solutions that address questions such as minimizing probe traffic, while still obtaining maximum coverage of all the links in the network. A polynomial-time probe-path computation algorithm is provided as well as a 2-approximate solution for merging probe paths when the number of probes exceeds a required bound k. The algorithms are evaluated using ISP topologies generated via Rocketfuel. For most topologies, it is possible to cover more than about 98% of the edges using just about 5% of the nodes as terminals.Type: ApplicationFiled: January 27, 2006Publication date: August 2, 2007Inventors: Fei Li, Marina Thottan
-
Publication number: 20070177519Abstract: A data processing system including a buffer for temporarily maintaining a portion of a plurality of compressed data streams and a switch. Each portion of the compressed stream comprises one or more units of an encoded media signal. The switch provides selective connectivity between the buffer and a plurality of processors. The plurality of processors can be configured to analyze the one or more units of the encoded media signal in the buffer to generate statistical data about the encoded media signal.Type: ApplicationFiled: March 1, 2006Publication date: August 2, 2007Inventor: Jan Thomsen
-
Publication number: 20070177520Abstract: The traffic load density measuring system includes a transmitter connected to a communication network for transmitting a packet, and a receiver for receiving the packet, in which a packet for load density detection is transmitted and received to measure a traffic load density within a predetermined transmission interval. The transmitter changes a transmission interval of the packet for load density detection, and adds transmission information capable of specifying a transmission time, a transmission interval, and a transmission number of the packet for load density detection to the packet for load density detection to transmit said packet. The receiver receives the packet for load density detection, extracts the transmission information from the packet for load density detection being received, and measures the load density within the predetermined transmission interval based on the extracted transmission information, and a delay or a lost status of the packet for load density detection.Type: ApplicationFiled: June 6, 2006Publication date: August 2, 2007Applicant: Fujitsu LimitedInventors: Masanobu Morinaga, Noriyuki Fukuyama, Hideaki Miyazaki
-
Publication number: 20070177521Abstract: To detect the communication conditions of a communication path set in a packet network such as a VoIP network, a detection packet is periodically transmitted to the communication path and a load packet is transmitted to the communication path. Then, the time and loss conditions regarding a detection packet having passed through the communication path are detected, and changes in delay and jitter conditions and changes in loss rate according to a traffic load are grasped. Changes in the communication conditions of the communication path at high load can be detected while minimizing the occurrence of adverse effects on other communications.Type: ApplicationFiled: August 2, 2006Publication date: August 2, 2007Applicant: FUJITSU LIMITEDInventors: Noriyuki Fukuyama, Masanobu Morinaga, Hideaki Miyazaki
-
Publication number: 20070177522Abstract: There is a need for applying an appropriate QoS setting to a complex information platform apparatus capable of flexibly changing an apparatus configuration so as to ensure an intra-apparatus communication band and realize management communication independence. Multiple processing modules are combined to construct one or more processing units with different apparatus types. An apparatus template management table prepares multiple levels of setting specifications with different ensured bands for intra-apparatus communication corresponding to each apparatus type. One set of setting specification is selected from multiple levels of setting specifications prepared for an apparatus type settled at the time of configuration setting. A QoS setting management table is generated based on the selected setting specification. When the configuration is set or changed, setting verification means verifies whether or not a total of ensured bands associated with each adapter is within an allowable range.Type: ApplicationFiled: January 22, 2007Publication date: August 2, 2007Inventors: Jun Okitsu, Yoshiko Yasuda, Takashige Baba, Toshiaki Tarui
-
Publication number: 20070177523Abstract: A network monitoring tool capable of effectively supporting a network administrator is provided. A monitoring apparatus includes a collecting unit that collects information on a network, a receiving unit that receives a notification indicating that an event has occurred on an element of the network, and an analyzing unit that analyzes correlation between one received notification and another received or potential notification on the basis of the collected information. The collecting unit may collect information regarding a packet forwarding path that is dynamically established in the network. The apparatus may further include a unit that detects whether the potential notification specified by the analyzing unit is actually received.Type: ApplicationFiled: January 30, 2007Publication date: August 2, 2007Inventors: Kenichi Nagami, Ikuo Nakagawa
-
Network connectivity determination based on passive analysis of connection-oriented path information
Publication number: 20070177524Abstract: Passive analysis connection detection architecture that leverages connection-oriented end-to-end stack protocol information. In a TCP/IP implementation, by passively leveraging TCP information, a given system can determine in a more realtime fashion the connectivity state of a TCP pathway. Additionally, other passive information from the TCP/IP stack such as send/receive packet counts can be considered. Based on analysis of TCP path information and/or send/receive packet counts, loss of certain network connectivity can be inferred, which greatly improves the accuracy and responsiveness of detecting network connectivity losses. The disclosed architecture also facilitates improved performance when using proxy systems as means for network connectivity so as to reduce unnecessary network traffic and to route network systems to other online systems in a more efficient and effective manner.Type: ApplicationFiled: February 5, 2007Publication date: August 2, 2007Applicant: Microsoft CorporationInventors: Tin Qian, James Talbut -
Publication number: 20070177525Abstract: A mechanism is provided to configure a plurality of transport trees in a transport network, each of which correspond to a native tree (e.g., a bidirectional multicast tree). In embodiments of the present invention, each of the plurality of transport trees has a unique root node so that in the event of a failure of any root node, the transport trees with surviving root nodes can be used to transport traffic from the native tree. The present invention provides for each transport network edge router being independently responsible for selection of a transport tree that the edge router will use to transmit a datastream, while also being capable of receiving packets from any transport tree. Through the use of such configured transport trees along with independent selection of a transport tree, the present invention provides a reduction in the disruption of datastream transmission due to a root node failure.Type: ApplicationFiled: February 2, 2006Publication date: August 2, 2007Inventors: Ijsbrand Wijnands, Arjen Boers, Alton Lo
-
Publication number: 20070177526Abstract: A method of initializing, provisioning, and managing a cable modem and a customer premise equipment device includes, prior to receiving the configuration file for the cable modem, providing an equipment identification message containing a description of the customer premise equipment device connected to the cable modem. In the case where the cable modem has yet to be provisioned, the configuration file received from the network server is a particular access-limiting configuration file that is selected from a group of access-limiting configuration files. The selection of the particular access-limiting configuration file is based on the description of the customer premise equipment device in the equipment identification message. This allows different devices to have different network restrictions or different walled gardens.Type: ApplicationFiled: November 22, 2006Publication date: August 2, 2007Inventors: Pak Siripunkaw, Emery Weber
-
Publication number: 20070177527Abstract: A method is provided of planning routes and allocating route identifiers in a managed frame-forwarding network. The network comprises a plurality of nodes interconnected by links, with each node being arranged to forward data frames according to a combination of an identifier and a network address carried by a received data frame and forwarding instructions stored at the node. A first step of the method identifies a sub-set of nodes which are core nodes of the network. The remaining nodes are termed outlying nodes. A spanning tree is then built off each of the identified core nodes, with the spanning tree stopping one link short of any other core node. Each spanning tree defines a loop-free path between a core node at the root of the spanning tree and a set of outlying nodes. Connections are planned between roots of the spanning trees and a different identifier is allocated to each planned connection between a pair of spanning trees.Type: ApplicationFiled: January 31, 2006Publication date: August 2, 2007Inventors: Nigel Bragg, Paul Bottorff, David Allan, Robert Friskney, Simon Parry
-
Publication number: 20070177528Abstract: Providing an announcement for a multiparty communication session involves establishing a communication session between at least two endpoints. A request to add an added endpoint to the communication session is received. A procedure to provide an announcement to the endpoints of the communication session is initiated. The announcement is played in response to determining a status of a media path of the added endpoint, and is provided from a rendering of a participant identifier associated with the added endpoint.Type: ApplicationFiled: January 27, 2006Publication date: August 2, 2007Inventor: Christopher Pearce
-
Publication number: 20070177529Abstract: An audio management apparatus manages simultaneous streams of packet-switched audio data for a network conference tool, and allows the combining of conferences that are not co-located. The apparatus uses at least two audio bridges, each of which receives audio inputs from a plurality of local connection points, does mixing of the audio data for each local connection-point and provides the audio outputs thereto. Also provided is a communications link between the two audio bridges, and each of the audio bridges creates an audio mix from its local connection points and outputs it over the communications link to the other audio bridge. Each bridge may treat the audio data from the other audio bridge as it does any other call. In this way, the combining of the two conferences is accomplished in a simple and straightforward manner.Type: ApplicationFiled: February 1, 2006Publication date: August 2, 2007Applicant: Sun Microsystems, Inc.Inventors: Joseph Provino, Jonathan Kaplan
-
Publication number: 20070177530Abstract: A large-scale wide area network system includes wireless communication base devices respectively configuring access points covering wireless zones subordinate thereto; wireless communication base control devices performing integrated control of the corresponding wireless communication base devices, and managing IP addresses of the wireless communication base control devices of a home location and a visited location as location information of a mobile terminal; in-area location information management devices respectively connected to the corresponding wireless communication base control devices via respective area IP networks corresponding to areas administered by the same common carrier, and managing the IP address of the wireless communication base control device of the home location as the location information of the mobile terminal; and a wide area location information management device hierarchically connected to the in-area location information management devices via a wide area IP network correspondingType: ApplicationFiled: May 24, 2006Publication date: August 2, 2007Inventors: Tatsuhiro Ando, Yoshihiro Kubota, Hidehiko Suzuki, Takuji Oyama
-
Publication number: 20070177531Abstract: A frame processing method in a wireless local area network includes: confirming quality status according to signal level value of a frame received via a wireless medium, error status of a frame or receipt status of an acknowledgment frame in response to frame transmission; determining split size information of a transmitting frame according to the quality status; and upon generation of the transmitting frame, splitting and transmitting the transmitting frame according to size information of the transmitting frame and the split size information. The frame size is optimized when frames are transmitted between an access point (AP) and a station, thereby maximizing a service area that the AP can cover while maximizing frame transmission rate.Type: ApplicationFiled: January 17, 2007Publication date: August 2, 2007Inventor: Seon-Soo Rue
-
Publication number: 20070177532Abstract: Satisfactory failure determination and detection of the connection state are made possible in a terminal control system comprising a main control device, a terminal device controlled by the main control device, and a communication line connected so as to enable two-way communication between the devices. The terminal control system comprises a main control device 1, a terminal device 2 controlled by the main control device 1, and a communication line 3 connected so as to enable two-way communication between the devices, wherein the main control device 1 comprises a detection unit 4 for detecting a characteristic of a waveform of terminal data transmitted from the terminal device 2 and received by the main control device 1 via the communication line 3, and also comprises a determination unit 5 for determining a state of a connection between the main control device 1 and the terminal device 2 based on results of detection by the detection unit 4 and on a reference stored by the main control device 1.Type: ApplicationFiled: July 25, 2005Publication date: August 2, 2007Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Hideya Kurachi, Koji Goto, Nobuyasu Kimura, Chiaki Sumi
-
Publication number: 20070177533Abstract: A smart surface is disclosed that can stand alone or be contained within a portable computer or other system, for powering and communicating with single or multiple cord-free transducers. Operating or charging power is transmitted by the surface using a carrier signal that is on/off keyed or amplitude modulated with synchronization, clock, enable, address, modes, commands and other pulse width, encoded or digital data. The signal is transmitted to single or multiple cordless smart transducers located on or above the surface, such as pens with multiple pressure sensing and switch capability, pointers, stylus, cursors, pucks, mouse, pawns, implements and similar items. Overlapping resonant inductive circuits are used in the surface to transmit operating power and communicate data to the transducer(s).Type: ApplicationFiled: April 1, 2005Publication date: August 2, 2007Inventors: Steven Palay, James Rodgers
-
Publication number: 20070177534Abstract: A power management method. The power management method for a wireless network having a plurality of stations (STAs) comprises receiving a data frame, detecting a destination STA in accordance with the data frame, and entering a low power state if not the destination STA for a first power-save (PS) duration determined according to a network allocation vector (NAV) of each STA not the destination STA, updated with a duration information of the received data frame duration determined according to a network allocation vector (NAV) of the data frame.Type: ApplicationFiled: February 1, 2006Publication date: August 2, 2007Inventor: Sheng-Chung Chen
-
Publication number: 20070177535Abstract: A method of performing a continuous cell search for new cells in a wireless communication systems having a plurality of base stations and a mobile station, the method including the steps of: (a) using (1) a primary synchronization code to acquire slot synchronization for identified cells; (b) using (2) a secondary synchronization code to find frame synchronization and identify a code group of the identified cells; (c) determining (3) a primary scrambling code used by the identified cells; and (d) rejecting (4) cells corresponding to previously identified primary scrambling codes from post-processing, wherein the method further includes the steps of: (e) correlating slot timings identified in step (a) with frame timings corresponding to primary scrambling codes identified in previous runs of steps (b) and (c); and (f) rejecting slot timings identified in step (a) from further processing in steps (b) and (c) when correlation is detected.Type: ApplicationFiled: March 16, 2005Publication date: August 2, 2007Applicant: NEC CORPORATIONInventor: Filip Zalio
-
Publication number: 20070177536Abstract: In one embodiment, a target scheduling grant for a user is generated based on the uplink resource consumed by a plurality of users, and a scheduling grant for a user is generated based on the target scheduling grant and the uplink resource consumed by the user. More specifically, in one embodiment, a scheduling grant is generated for the user based on the target scheduling grant, the uplink resource consumed by the user, and a reference scheduling grant.Type: ApplicationFiled: January 27, 2006Publication date: August 2, 2007Inventors: Stefan Brueck, Roland Guethaus, Enrico Jugl, Thomas Kleinhenz, Jens Mueckenheim
-
Publication number: 20070177537Abstract: Apparatus, and an associated method, that facilitates communication of data in a radio communication system that utilizes a slotted communication scheme. Multiple successive time slots are allocable upon which to communicate data to a receiving communication station. At selected intervals, a controller causes the mode of operation of the receiving communication station to be changed to pause operation in a receive mode and, during the pause, to cause operation of the receiving communication station to transmit data, such as control acknowledgments or other responses.Type: ApplicationFiled: January 31, 2006Publication date: August 2, 2007Inventors: Matthias Wandel, Mark Pecen
-
Publication number: 20070177538Abstract: In embodiments of the present invention improved capabilities are described for a communications facility that is adapted to communicate with at least one other mesh network node at a communication speed selected from a plurality of communication speeds.Type: ApplicationFiled: June 22, 2006Publication date: August 2, 2007Inventors: Tommas Jess Christensen, Jacob Midtgaard, Didier Clement, John Nielsen, Morten Vested Olesen, Olfert Paul Paulsen, Rasmus Glarborg Jensen
-
Publication number: 20070177539Abstract: The invention provides a cellular mobile communication system that efficiently performs high-speed communication with mobile terminals within the cell using a single frequency. The mobile communication system sequentially performs polling communication control to plural terminals within the own cell, based on a control of a base station positioned near the center of the cell. With this arrangement, the terminals within the cell can communicate with each other using a single frequency.Type: ApplicationFiled: May 5, 2006Publication date: August 2, 2007Inventor: Hiroyuki Nakano
-
Publication number: 20070177540Abstract: In a system and method for transmitting data in a wireless local area network (WLAN), the system includes: a wireless station which, when a No Acknowledge (ACK) function of the WLAN is applied, transmits a No ACK request message based on a protection mechanism according to a frame transmission condition based on link status packet information which is transmitted from an upper layer; and an access point for sequentially receiving a frame from the wireless station without a delay time depending on the No ACK request message received from the wireless station. The method comprises steps corresponding to the above functions of the wireless station and the access point of the disclosed system.Type: ApplicationFiled: December 8, 2006Publication date: August 2, 2007Inventor: Seon-Soo Rue
-
Publication number: 20070177541Abstract: Provided is an apparatus and method for transmitting/receiving signals in a communication system. A base station allocates a quasi-dedicated control channel (QDCCH) to a first mobile station (MS), and allocates the QDCCH allocated to the first MS, to a second MS for a preset time. An MS receives a QDCCH allocated from the base station. If there is data to transmit to the base station, the MS determines whether the QDCCH is allocated to another MS different from the MS. If it is determined that the QDCCH is allocated to the MS itself, the MS transmits the data to the base station over the QDCCH.Type: ApplicationFiled: May 30, 2006Publication date: August 2, 2007Applicants: SAMSUNG ELECTRONICS CO., LTD., Korea Advanced Institute of Science and Technology (KAIST)Inventors: Tae-Soo Kwon, Chi-Hyun Park, Sang-Boh Yun, Dong-Ho Cho, Ju-Yeop Kim, Ho-Won Lee, O-Hyun Jo, Sik Choi
-
Publication number: 20070177542Abstract: Systems and methods according to the present invention provide arbitration methods, systems and devices which enable a WLAN transceiver (30) and a Bluetooth (BT) transceiver (32) to share the transmission medium. Various arbitration signals (BT, WL, RXIND and PRI) enable the transceivers to indicate a seizure of ownership of the medium as well as to accommodate special arbitration cases, e.g., priority packet transmission/reception. Some arbitration features are hardware programmable to provide design flexibility.Type: ApplicationFiled: June 7, 2005Publication date: August 2, 2007Inventor: Olaf Hirsch
-
Publication number: 20070177543Abstract: The present invention relates to technique for optimized assignment of Abis transmission resources based on dynamic statistical time division multiplexing, the method comprising the steps of: assigning a set of 64 k TS's to GPRS/EGPRS services on an Abis link, the set of 64 k TS's shared among all BTS's connected to the Abis interface; a PCU assigning sufficient Abis transmission resources to a TRX based on the load thereof if the TRX has EGPRS services; a BSC interconnecting Abis transmission resources and BSC-PCU transmission resources and informing a BTS that said Abis transmission resources have been assigned to a TRE mapped to the TRX; the PCU reassigning bandwidth of the Abis transmission resources based on changes in the load of the TRX; in each TRX, all RTS's statistical-time-division-multiplexing all transmission resources of the TRX based on flow in different periods for different RTS's.Type: ApplicationFiled: January 25, 2007Publication date: August 2, 2007Applicant: Alcatel LucentInventors: Enyuan Qian, Huiyan Zhang, Lingfeng Lin, Jun Song, Yang Wu, Chunting Li, Yi Zhang, Ke Feng