Patents Issued in April 15, 2004
  • Publication number: 20040071079
    Abstract: Disclosed is a fast Fourier transform device of a wireless LAN orthogonal frequency division multiplexing (OFDM) system. The device comprises: an FFT/IFFT unit constituted with one hardware, for performing a fast Fourier transform (FFT) and an inverse fast Fourier transform (IFFT); and a control signal input unit for outputting a control signal for controlling an operation of the FFT/IFFT unit.
    Type: Application
    Filed: September 22, 2003
    Publication date: April 15, 2004
    Inventor: Jung-Il Han
  • Publication number: 20040071080
    Abstract: In a label switching router and a path switchover method thereof when a path fault occurs, a relay label switching router registers a hop destination indicated in a received message in a path hop list, forwards the message to a next hop destination without deleting the hop destination, and notifies an identifier of a path in which a fault has recovered to an ingress label switching router based on the path hop list, an egress label switching router registers the hop destination indicated in the received message in a path hop list, and notifies an identifier of a path in which a fault has recovered to the ingress label switching router based on the path hop list, and the ingress label switching router regards, when detecting a recovery of a path higher in priority than an active path or when receiving a recovery notification, the recovered path as an active path.
    Type: Application
    Filed: September 25, 2003
    Publication date: April 15, 2004
    Applicant: FUJITSU LIMITED
    Inventors: Motohiro Uchiyama, Yasuhiro Kajiwara
  • Publication number: 20040071081
    Abstract: A method for determining and enforcing rate constraints on process flows in a network, the method comprising receiving at least one process flow. A flow rate vulnerability (FRV) factor and a required bandwidth (RBW) parameter are determined for said at least one process flow. A rate constraint is calculated for said at least one process flow and the rate constraint is enforced on said at least one process flow.
    Type: Application
    Filed: October 10, 2002
    Publication date: April 15, 2004
    Applicant: P-Cube Ltd.
    Inventor: Amir Rosenfled
  • Publication number: 20040071082
    Abstract: A method and apparatus for network routing in packet-based networks which advantageously takes traffic conditions into account dynamically in determining the “best route” for routing a packet to its intended destination. Illustratively, a potential function is employed whereby hypothetical electrostatic potential values are calculated at each node or link of a network, and the packets are routed in accordance with these potential function values (e.g., in the direction of the lowest neighboring value). The potential function values may be advantageously calculated based on queue lengths at the various nodes (or links) in combination with a minimum-cost distance calculated to the packet's intended destination.
    Type: Application
    Filed: October 11, 2002
    Publication date: April 15, 2004
    Inventors: Anindya Basu, Alvin Lai Lin, Sharad Ramanathan
  • Publication number: 20040071083
    Abstract: The present invention is directed to a system and method for delivery of encoding video data over a data network such as an IP network. In addition to having a server capable of sending multiple layers of data into the data network, the system comprises adaptive nodes located intermediate the server and clients located downstream of the adaptive node where these clients may be receivers and/or other adaptive nodes. Receivers and adaptive nodes may be capable of analyzing network capacity by perceiving network congestion conditions of the data network at that device and dynamically changing the channel subscriptions to which the receiver and/or the adaptive node have subscribed based on the perceived network congestion conditions. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure.
    Type: Application
    Filed: February 22, 2002
    Publication date: April 15, 2004
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Qiong Li, Warner R.Th. Ten Kate
  • Publication number: 20040071084
    Abstract: Provided is a method and apparatus for objectively and non-intrusively measuring voice quality on live calls without disrupting the call session or the network. A communication system includes plural communities each including a switch that controls access to a packet-based data network for call sessions. Each of the communities is coupled to the data network by respective packet-based trunks. Quality of service (QoS) monitoring devices are coupled to the respective packet-based trunks to monitor quality levels of routes between any two given communities. Each QoS monitoring device receives packets containing streaming data (which may be actual packets or test packets). From the received packets, the QoS monitoring device can derive QoS parameters, particularly for audio and speech signals on live calls without disrupting the call session.
    Type: Application
    Filed: October 9, 2002
    Publication date: April 15, 2004
    Applicant: Nortel Networks Limited
    Inventors: Mohamed S. El-Hennawey, Ick Don Lee
  • Publication number: 20040071085
    Abstract: A method for proposing at least one transmission rate change including calculating a plurality of latency values, computing at least one derivative-based proposed change from the plurality of latency values, and proposing a rate change selected from the at least one derivative-based proposed change. Also provided is a system including a rate controller controlling the transmission rate of data between two stations over a network and a rate reporter in communication with the rate controller.
    Type: Application
    Filed: December 4, 2003
    Publication date: April 15, 2004
    Inventors: Oded Shaham, Avi Sagiv, Yair Shapira, Noam Zakai
  • Publication number: 20040071086
    Abstract: The invention relates to methods and apparatus for controlling traffic congestion of communication traffic in a communication network. The network includes a first node which is operable to receive communication traffic in the form of data from one of more sending nodes and to pass that data to one or more receiving nodes. The method includes monitoring the possible output data rate of the first node and detecting if the possible output data rate becomes smaller than a maximum data rate value and responsive to that monitoring step performing congestion control whereby the data throughput of a flow of data through the first node is decreased.
    Type: Application
    Filed: November 14, 2003
    Publication date: April 15, 2004
    Inventors: Serge Haumont, Tero Mkel
  • Publication number: 20040071087
    Abstract: The present invention is a method and system of load balancing in a group of one or more servers connected to one or more subnetworks. Two or more independent servers are bound into a group, with one of the servers elected to serve as a leader. The leader acts as a load balancer for the group while the remaining servers act as slaves. This functionality eliminates the need for one or more dedicated load balancing devices and lowers the hardware requirements necessary for performing such load balancing.
    Type: Application
    Filed: November 12, 2003
    Publication date: April 15, 2004
    Inventors: Amnon Siev, Chava Laviatan
  • Publication number: 20040071088
    Abstract: The invention relates to a method for streaming of media from a streaming server (111) to a mobile client device (101) over an air-interface, wherein, after a cell reselection, the method comprises requesting the streaming server (111) to resend streaming media which the mobile client device (101) was not able to receive due to the cell reselection.
    Type: Application
    Filed: September 29, 2003
    Publication date: April 15, 2004
    Applicant: Nokia Corporation
    Inventors: Igor D.D Curcio, Miikka Lundan
  • Publication number: 20040071089
    Abstract: A method for deriving a set of efficient path costs for a group of nodes comprising a source node and a plurality of destination nodes in a data communications networks, wherein the path costs for paths between nodes in the group are defined in the network and each path cost comprises a restrictive cost and an additive cost, comprises iteratively identifying the paths of higher bandwidth first and, when two or more paths of equal bandwidth are encountered, selecting the path having a lower transit delay associated therewith.
    Type: Application
    Filed: November 17, 2003
    Publication date: April 15, 2004
    Inventors: Daniel Bauer, John N. Daigle, Ilias Iliadis, Paolo Scotton
  • Publication number: 20040071090
    Abstract: Techniques for supporting fault tolerance in communications systems, e.g., cellular communications networks with mobile wireless user devices, are described. In various embodiments end nodes, e.g., mobile devices, store information indicating which other nodes are critical to their operation, e.g., critical to messages and/or signals being properly routed to the individual end node. Different network nodes may be critical to different end nodes. Critical node information stored by an end node may be statically preprogrammed or dynamically generated, or may include a combination of both and static and dynamic information. In some embodiments at least a portion of the information used to determine which nodes are critical to a particular end node is generated dynamically from signaling information, e.g., session control signaling, transmitted and/or received during normal operation of the end node. Faults, failures and/or scheduled outages in various network nodes are detected and/or reported.
    Type: Application
    Filed: July 14, 2003
    Publication date: April 15, 2004
    Inventors: M. Scott Corson, Samir Kapoor, Rajiv Laroia, Vincent Park, Arthur Stephens
  • Publication number: 20040071091
    Abstract: A method and systems to test a communication system (200) comprising a plurality of emitters (205), receivers (210) and channels (220) are disclosed. According to the method of the invention the data used for the test are preprocessed so as to be analyzed on the fly by the receivers during the test. In a preferred embodiment, a connection identifier value characterizing emitter and receiver addresses as well as data properties, if any, is associated to each data and CRC bits are computed to format frames comprising data, connection identifier value and CRC bits (410). During the test, the communication system transmits frames from emitters to corresponding receivers. Upon frames reception, receivers extract data (455), connection identifier value (460) and CRC bits (465) and compute CRC bits on received data (470). The comparison (475) of transmitted and computed CRC bits in receiver allows determining whether or not frames have been well transmitted.
    Type: Application
    Filed: September 5, 2003
    Publication date: April 15, 2004
    Applicant: International Business Machines Corporation
    Inventors: Alain Blanc, Bruno Mesnet, Rene Gallezot
  • Publication number: 20040071092
    Abstract: A cable isolator is provided for automatically performing cable breaks for testing of host bus adapters. A workstation includes a host bus adapter, such as a Fibre Channel storage controller, to be tested. The host bus adapter is connected to one or more storage modules through the cable isolator. The cable isolator includes two transceivers, one of which is connected to the host bus adapter and the other being connected to the storage modules. The two transceivers are also connected to each other internally. The cable isolator also includes a programmable logic device or controller that is used to enable and disable the two transceivers at set intervals. The one or more output disable signals are then provided to the transceivers to perform the cable break. The cable isolator may be an expansion card installed within the workstation. Thus, the workstation may communicate with the cable isolator through an expansion bus.
    Type: Application
    Filed: October 15, 2002
    Publication date: April 15, 2004
    Inventors: Alan Thomas Pfeifer, Darin Scott Frazier
  • Publication number: 20040071093
    Abstract: A method for processing signals received in a communications system determines symbol information corresponding to a re-transmitted packet, compared the symbol information of the re-transmitted packet with symbol information of an original packet, and formed a combined packet based on a result of the comparing step.
    Type: Application
    Filed: March 27, 2003
    Publication date: April 15, 2004
    Applicant: LG Electronics Inc.
    Inventor: Jik-Dong Kim
  • Publication number: 20040071094
    Abstract: The present invention proposes a method for configuring a data transmission interface in a communication network adopting a transmission protocol for transmission of data in units of grouped data, wherein said transmission interface is the interface (Iub) between an access network control node (RNC1) and an access node (BS1-BS6) adapted to establish a communication to a terminal, and wherein said communication network has a topology such that an access node (BS2, BS3, BS5, BS6) is connected to said access network control node (RNC1) by an intermediate of at least one further access node (BS1,BS1-BS2, BS4, BS4), said method comprising the steps of: deriving a delay information of the delay experienced by data transmission between a respective network access node (BS1-BS6) and said access network control node (RNC), calculating a delay difference between two consecutive access nodes (BS1-BS2, BS2-BS3, BS4-BS5, BS4-BS6) based on said delay information, and modifying the delay experienced by data transmission for
    Type: Application
    Filed: November 10, 2003
    Publication date: April 15, 2004
    Inventors: Maunu Holma, Jari Isokangas, Esa Metsala
  • Publication number: 20040071095
    Abstract: A method and apparatus for monitoring the transmission of data in a communication network are provided. The method includes the steps of transmitting a stream of data packets from a first node to a second node in the communication network, in a first mode of operation, measuring with a first level of accuracy at least a first parameter of the transmitted stream of data and responsive to the measured first parameter reaching a predetermined value, measuring at least one parameter of the transmitted stream of data in a second mode of operation which has a greater accuracy than the first level of accuracy.
    Type: Application
    Filed: October 21, 2003
    Publication date: April 15, 2004
    Inventor: Vilho Raisanen
  • Publication number: 20040071096
    Abstract: A method is disclosed for transmitting and receiving packetized data having multiple protocol headers in a packet data communication system. An operating state of a network is determined, and a period for transmitting a full packet is decided according to a result of the determination. Full packets having uncompressed headers are transmitted during periodic transmission times according to the decided full-packet transmission period, and compressed packets are transmitted in other transmission times. If the operating state of the network is decided to be a congested state according to an average packet retransmission ratio produced in a period for measuring the operating state of the network, the full-packet transmission period is set to “1”. A value of the full-packet transmission period in an unloaded state is twice a value of the full-packet transmission period in a normal state.
    Type: Application
    Filed: July 11, 2003
    Publication date: April 15, 2004
    Inventors: Seung-Gu Na, Yong-Keon Kim, Woo-Sung Jun
  • Publication number: 20040071097
    Abstract: A communication system for controlling remote devices within a vehicle is provided. The communication system includes a master module for generating a command message, and a remote module for executing the command message and generating a response message. A data bus provides bidirectional communication between the master module and the remote module. The communication system also includes a message frame for communicating data between the master module and the remote module, the message frame includes the command message generated by the master module for execution by the remote module, and the message frame includes the response message generated by the remote module for providing feedback to the master module.
    Type: Application
    Filed: October 9, 2003
    Publication date: April 15, 2004
    Inventors: Richard A. Halter, John M. McCambridge
  • Publication number: 20040071098
    Abstract: A multicasting conferencing system is described wherein permanently or temporarily assigned addressing may be used. When permanently assigned multicast addressing is used, several channel parameters are assigned to a multicast session, and any terminals desiring to “tune in” to the multicast session simply invoke those parameters from a storage location at which they have been previously stored.
    Type: Application
    Filed: February 20, 2001
    Publication date: April 15, 2004
    Inventor: Henry S. Magnuski
  • Publication number: 20040071099
    Abstract: A method and system of providing group management for IMS conferencing services involves creating side control channels for membership control services. The membership control channel can use Client Group Management Protocol (CGMP) or alternate group management protocols. The membership channel can use HTTP, SIP, or other transport protocols. Group management protocol primitives and procedure calls can be communicated using SOAP or other XML-based protocols.
    Type: Application
    Filed: October 11, 2002
    Publication date: April 15, 2004
    Inventors: Jose Costa-Requena, Petri Koskelainen, Ignacio Almar, Immaculada Espigares, Oriol Ribera
  • Publication number: 20040071100
    Abstract: To control a conference circuit between multiple terminal devices in a packet-oriented communication network, circuit-oriented conference control signaling is transmitted via a packet-oriented transport protocol between a first terminal device and a communication server of the communication network. Setting up of packet-oriented media channels between the terminal devices and a packet-oriented conference mixing device is initiated by the communication server depending on the conference control signaling.
    Type: Application
    Filed: August 11, 2003
    Publication date: April 15, 2004
    Inventor: Karl Klaghofer
  • Publication number: 20040071101
    Abstract: A computer system (14). The system comprises a memory (MEM) operable to store a computer program, and control circuitry (CPU) for issuing a plurality of commands in response to the computer program. The plurality of commands include a request (LineConfigure) to establish a line connection according to a specified one of a plurality of modes. The system further includes a first modem (M14) coupled to the control circuitry and for receiving the plurality of commands. The first modem is also for communicating with a second modem (M12) according to the line connection. A first of the plurality of modes is such that the requested line connection between the first modem and the second modem is for a first period of time. A second of the plurality of modes is such that the requested line connection between the first modem and the second modem is for a second period of time having a different duration than the first period of time.
    Type: Application
    Filed: April 26, 2001
    Publication date: April 15, 2004
    Inventors: Xiaolin Lu, Dennis G. Mannering
  • Publication number: 20040071102
    Abstract: The present invention relates to an arrangement and a method for echo cancellation wherein only telecommunications traffic (s6) of a downlink (3), for which echo cancellation is performed, passes through an echo canceller function (1′). Traffic (s5) of an uplink (2) is forwarded via a switch (15) to a near end (B) without passing through the echo canceller function (1′). A signal copy (s9) of traffic (s5) of the uplink is created by the switch (15) and directed to the echo canceller function (1′) in order to serve as a base for an estimated echo signal (e′). The estimated echo signal (e′) is subtracted from the traffic (s6) of the downlink, which is input to the echo canceller function (1′), so as to create an output signal (s8), which is substantially free from echo. The invention makes it possible to reduce the processing capacity required in connection with echo cancellation and provides for a decreased delay of traffic of the uplink (2).
    Type: Application
    Filed: October 31, 2003
    Publication date: April 15, 2004
    Inventors: Lars-Goran Petersen, Gunnar Larsson, Patrik Wiss, Stefan Pudas
  • Publication number: 20040071103
    Abstract: A method of attenuating interference in a wideband telecommunications system comprises setting an interference level threshold; sampling the received signal; storing the sample values as first sample value vectors of a 5 predetermined length, forming prediction matrices of the first sample value vectors; modifying prediction matrices in such a way that the interference components and the components of the desired signal are separated from each other; forming signal matrices by performing rank reduction for each prediction matrix by rejecting those sample values or elements representing 10 them that exceed the interference level threshold; forming second sample value vectors of the signal matrices, the second sample value vectors being at least substantially of the same length as the first sample value vectors; summing up sample values of second sample value vectors time-coherently to average the noise by sliding the sample value window, the length of which is 15 determined preferably by the length of the firs
    Type: Application
    Filed: August 20, 2003
    Publication date: April 15, 2004
    Inventor: Pertti Henttu
  • Publication number: 20040071104
    Abstract: A method of multi-mode communications includes receiving signals from multiple sources at a plurality of sample buffers, referencing the plurality of sample buffers for a first source at one time and referencing the plurality of sample buffers for a second source at another time, and communicating data from the referenced plurality of sample buffers to a processing unit. The processing unit concurrently receives inputs from buffers in the plurality of sample buffers and outputs to other buffers in the plurality of sample buffers.
    Type: Application
    Filed: July 2, 2003
    Publication date: April 15, 2004
    Applicant: CommASIC, Inc.
    Inventors: Robert W. Boesel, Theodore J. Myers, Tien Q. Nguyen
  • Publication number: 20040071105
    Abstract: The object of the present invention is to prevent continued reception of unreliable information symbols at the receiver apparatus 200 in the OFCDM radio communication system, so that it is possible to improve transmission quality. The radio communication system according to the present invention comprises a transmitter apparatus 100 configured to estimate conditions of propagation paths used in the radio communication, arrange information symbols along the direction of the frequency axis in accordance with a predetermined pattern based on the estimated conditions of propagation paths, and transmit a radio communication signal including the arranged information symbols and a receiver apparatus 200 configured to receive the radio communication signal, and rearrange the information symbol included in the radio communication signal along the direction of the frequency axis in accordance with a reverse pattern to the predetermined pattern.
    Type: Application
    Filed: October 7, 2003
    Publication date: April 15, 2004
    Applicant: NTT DoCoMo, Inc.
    Inventors: Noriyuki Maeda, Hiroyuki Atarashi, Mamoru Sawahashi
  • Publication number: 20040071106
    Abstract: In this invention, wireless video telephone communication between mobile telephones MS1 and MS2 using the MPEG-2 standard is performed when the reception field strength falls below a threshold value of H continuously for a specific period of T3 or longer in the course of receiving the data at one mobile telephone MS2, the telephone MS2 monitors the restoration of the reception field strength. After detecting the restoration, mobile telephone MS2 transmits a request for the transmission of an I frame to mobile telephone MS1. Upon receipt of the request, mobile telephone MSI creates an I frame in place of a P frame and transmits, the I frame.
    Type: Application
    Filed: November 6, 2001
    Publication date: April 15, 2004
    Inventors: Koichi Ito, Kentoku Yamaguchi, Nobuhiro Inoue, Yuichi Sato, Kei Sakuma, Seiji Oura, Tomeo Oka, Yoshihiro Kataoka, Hiroshi Ogasawasa
  • Publication number: 20040071107
    Abstract: A timely organized ad hoc network is provided, including at least one access point, and a plurality of network nodes operable to transmit and receive at least one node information message destined for the at least one access point, in which at least one of the plurality of network nodes transmits the at least one node information message to a first selected one of at least one neighboring destination, the first selected neighboring destination being selected in accordance with a dynamic self-routing protocol, the first selected neighboring destination including one of: i) the at least one access point, and ii) a first neighboring network node of the plurality of network nodes, if the at least one network node is prevented from directly transmitting the node information to the at least one access point.
    Type: Application
    Filed: October 15, 2002
    Publication date: April 15, 2004
    Inventors: Marat G. Kats, Helena Zelmanovich, Igor Tchibirev, Yuriy Izvarin
  • Publication number: 20040071108
    Abstract: A method of controlling the flow of data, in respect of a given mobile terminal, between a Radio Network Controller (RNC) and a NodeB of a UMTS Terrestrial Radio Access Network (UTRAN) where an Automatic-Repeat-Request (ARQ) mechanism is implemented between the NodeB and said mobile terminal to provide for the retransmission of unsuccessfully transmitted data. The method comprises generating control messages at the NodeB and sending these control messages to the RNC, each control message enabling the RNC to identify which data should next be sent to the NodeB.
    Type: Application
    Filed: November 13, 2003
    Publication date: April 15, 2004
    Inventors: Toomas Wigell, Johan Torsner, Raul Soderstrom, Janne Peisa
  • Publication number: 20040071109
    Abstract: A telecommunications device and network that provides TCP/IP communications over the entire data path, thereby simplifying the software call stack needed for a wireless device or to communicate with the network. The device eliminates the upper layers (non-access-stratum) of the handset call stack. It reduces the role of the radio layer to just providing link layer services. Furthermore, the handset call stack communicates with session control and billing & authorization servers over a public network such as the internet. Further, the wireless devices, as well as base stations and other components, communicate with session servers and billing & authorization servers over a public network, such as the Internet, eliminating any need for dedicated private-network connection between these components.
    Type: Application
    Filed: May 20, 2003
    Publication date: April 15, 2004
    Applicant: SAMSUNG ELECTRONICS Co, LTD.
    Inventors: Sudhindra P. Herle, Ronald J. Webb
  • Publication number: 20040071110
    Abstract: Bandwidth is allocated in a radio packet data system by sending achievable data rate estimate information from an access terminal to an access network. The achievable data rate estimate information is associated with scenarios corresponding to state combinations of a plurality of transmitters in the access network in which each transmitter is in either a serving, active, or idle state and one or more of the plurality of transmitters is in the idle state in one or more of the scenarios.
    Type: Application
    Filed: October 9, 2002
    Publication date: April 15, 2004
    Inventors: Jiann-Ching Guey, Leonid Krasny
  • Publication number: 20040071111
    Abstract: A high-frequency compound switch module of this invention has a first communication system comprising a switch unit for switching connection of a signal from an antenna to one of a transmission circuit and a reception circuit of the first communication system based on a signal from a control terminal, a filter provided on a first reception circuit side, for filtering out a first reception signal, and a first phase shift line provided between the filter and the switch unit, and a second communication system comprising a second phase shift line provided between the switch unit and the first phase shift line, and a branching filter provided in series to the second phase shift line for branching a signal from the second phase shift line into a second transmission signal and a second reception signal. The switch module is capable of performing at least a receiving process of the first communication system while performing transmission/reception with the second communication system.
    Type: Application
    Filed: September 9, 2003
    Publication date: April 15, 2004
    Inventors: Yuki Satoh, Toshio Ishizaki, Takeo Yasuho
  • Publication number: 20040071112
    Abstract: Mobile unassisted dormant handoff in a wireless communication system supporting packet data communications. While in a dormant mode, a mobile node may change packet zones, wherein different packet zones are serviced by at least one different infrastructure element, without identifying the change to the system. The change in packet zone does not necessarily trigger establishment of a communication path for the mobile node until there is packet data ready for communication. In one embodiment, mobile assistance is adapted to the system, and is disabled at the mobile node by an indication in a system parameter message transmitted by the system and received by the mobile node.
    Type: Application
    Filed: October 10, 2002
    Publication date: April 15, 2004
    Inventors: Raymond T. Hsu, Arungundram C. Mahendran
  • Publication number: 20040071113
    Abstract: A method and apparatus which permits handoffs while the mobile station is in the system access state. This is achieved by providing for channel assignment messages to be sent over the paging channel of a plurality of base stations, which increases the probability of one of the messages getting through. In addition, this assures the mobile station will be able handoff to a different base station and have a traffic channel allocated to it on the new base station without delay. In addition, a method and apparatus which permits the mobile station to be directly assigned into a soft handoff state upon traffic channel assignment.
    Type: Application
    Filed: October 8, 2003
    Publication date: April 15, 2004
    Inventor: Edward G. Tiedemann
  • Publication number: 20040071114
    Abstract: A method for management of real-time system algorithms to achieve optimal efficiency which provides for dynamically managing priorities in a complex real-time system, considering the dynamic requirements of the system. A preferred embodiment describes the management of a plurality of RRM algorithms, including algorithms for SCC escape, LM escape, SCC rate control, and F-DCA background. More specifically, one exemplary embodiment assists in deciding: when to increase algorithm priorities, how to increase/decrease algorithm priorities, how to assign priority parameters, and how to dynamically manage priorities in the system, to result in optimal system efficiency.
    Type: Application
    Filed: April 21, 2003
    Publication date: April 15, 2004
    Applicant: InterDigital Technology Corporation
    Inventor: Guang Lu
  • Publication number: 20040071115
    Abstract: A method for synchronous code division multiple access (SCDMA) scheduling including intelligent uplink SCDMA scheduling that incorporates polarization and/or spatial information to determine SCDMA code set assignment. The method includes scheduling algorithms to reduce observed interference and thus allow for a potentially significant increase in uplink capacity. This allows more terminals to be accommodated within a single site (i.e., higher sustainable user density) and/or a reduction in the number of base stations that must be deployed in order to cover a given area. This present invention is applicable to any high-speed wireless evolution SCDMA-based data system that would require highly efficient and optimized scheduling algorithms.
    Type: Application
    Filed: October 11, 2002
    Publication date: April 15, 2004
    Inventors: Mark Earnshaw, David Damian Nicholas Bevan, Bassam Hashem, Julius G. Robson
  • Publication number: 20040071116
    Abstract: An automatic frequency correction (AFC) apparatus used for CDMA multipath fading channels comprises a frequency-offset evaluator, an automatic frequency correction loop filter and a carrier frequency adjuster. The present invention provides a “multipath energy window” designing method for the non-determinacy of multipath signals in mobile communication environment. Frequency-offset information can be extracted from the multipath energy window by a simple calculation and evaluated by a maximal SNR weight process. This invention also provides a step-variable accumulation adjusting method and greatly improves the response speed of the AFC apparatus as compared with a conventional loop filter, whereby supplies better AFC required for CDMA mobile terminals.
    Type: Application
    Filed: September 29, 2003
    Publication date: April 15, 2004
    Inventors: Xiaohu You, Yan Zhang, Ling Wang, Liangcheng Jiang, Shixin Cheng
  • Publication number: 20040071117
    Abstract: The invention relates to a method for avoiding interferences in cellular CDMA radio networks caused by defective mobile stations. To this end, the radio network is provided with a monitoring unit that compares an actual receive power arriving from a mobile station with a predetermined nominal receive power and initiates predetermined follow-up actions depending on the result of this comparison. Alternatively or additionally thereto, the monitoring unit is provided with at least one counter that is capable of detecting commands for power control of the mobile station that are transmitted individually for every mobile station from the base station to the mobile station and to initiate predetermined follow-up actions depending thereon.
    Type: Application
    Filed: November 17, 2003
    Publication date: April 15, 2004
    Inventors: Christof Jung, Wolfgang Kreuz
  • Publication number: 20040071118
    Abstract: System and method for receiving transmissions in a wireless communications system. A preferred embodiment comprises a receiver (such as receiver 400) that can despread and then demodulate a symbol from a transmitter that first spread and then modulated the symbol. By reversing the processing order, the demodulation can be performed at a lower data rate and therefore reducing computational and power requirements.
    Type: Application
    Filed: August 25, 2003
    Publication date: April 15, 2004
    Inventors: Anand G. Dabak, Anuj Batra
  • Publication number: 20040071119
    Abstract: A control method of searching for a neighboring cell of a mobile station communicating with a base-station is provided in a direct sequence CDMA mobile communication system which transmits information by carrying out double modulation using a first spreading code group and a second spreading code. The first spreading code group includes spreading codes that have a same repetition period as an information symbol period and are used in common by the base stations, and the second spreading code has a repetition period longer than the information symbol period. The base stations are assigned different second spreading codes.
    Type: Application
    Filed: September 18, 2003
    Publication date: April 15, 2004
    Inventors: Yoshihiro Ishikawa, Seizo Onoe, Kazufumi Yunoki, Akihiro Higashi
  • Publication number: 20040071120
    Abstract: The present invention concerns a method and system for optimizing transport efficiency between a Mobile Node and a Correspondent Node in a Mobile IP network. A short Mobile Node Identifier is assigned to the Mobile Node. A Mobile Node Identifier Destination Option header comprising the assigned Mobile Node Identifier is used instead of the prior art Home Address Destination Option header in subsequent packets between the Mobile Node and the Correspondent Node.
    Type: Application
    Filed: October 11, 2002
    Publication date: April 15, 2004
    Inventor: Sandro Grech
  • Publication number: 20040071121
    Abstract: The conventional wireless LAN system has the difficulties in limiting the extent to which network services are provided simply by controlling the intensity of radio wave.
    Type: Application
    Filed: October 11, 2002
    Publication date: April 15, 2004
    Inventor: Takashi Ishidoshiro
  • Publication number: 20040071122
    Abstract: A mobile station serves as an aggregation point for connecting one or more peripheral devices to a Public Data Network through the mobile station's wireless link to a supporting wireless communication network. In an exemplary embodiment, the mobile station establishes a single PPP session with the network that includes a primary service instance for itself and an auxiliary service instance for each locally attached peripheral device. As such, the mobile station and the one or more locally attached peripheral devices share a single PPP session, permitting each device to have its own IP address and allowing the mobile station to provide Mobile IP messaging relay between Mobile IP clients in the attached devices and the supporting network. With this arrangement, the mobile station avoids IP packet routing overhead by directing traffic to the appropriate peripheral device using the service instance identifiers marking the packet data traffic received from the network.
    Type: Application
    Filed: October 15, 2002
    Publication date: April 15, 2004
    Inventors: Sven Anders Borje Svensson, Henrik Basilier
  • Publication number: 20040071123
    Abstract: Apparatuses and methods for linking a wireless LAN terminal and a Bluetooth terminal, for enabling communications between the terminals, and for enabling establishment of an ad-hoc network between the terminals are provided. A first linking apparatus includes a first data conversion unit which receives a Bluetooth signal and converts it to common layer data; and a first signal conversion unit which converts the common layer data into a wireless LAN signal and transmits it. A second linking apparatus includes a second data conversion unit which receives a wireless LAN signal and converts it into common layer data; and a second signal conversion unit which converts the common layer data into a Bluetooth signal and transmits it. Thus, by linking Bluetooth terminals and wireless LAN terminals, communications between the terminals, which use different technologies, are enabled, and an ad-hoc network can be established between the terminals.
    Type: Application
    Filed: June 10, 2003
    Publication date: April 15, 2004
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Sang-hyun Shin
  • Publication number: 20040071124
    Abstract: A method and apparatus of providing communications in a networks with dynamic topology is disclosed in which data is carried by software agents which operate autonomously and independently of global network information.
    Type: Application
    Filed: August 26, 2003
    Publication date: April 15, 2004
    Inventor: Fabrice TP Saffre
  • Publication number: 20040071125
    Abstract: An RF power fairness method (26) receives a request for supplemental channel resources (160). If sufficient supplemental channel resources (time slots and data rates) are not available, the original request is modified (166). If there is multiple call activity on the supplemental channel, RF power is calculated for each of the simultaneous calls on the shared channel (202, 208). If successful time slots and data rates are found, a grant message is returned from the time slot manager (26) to the base station (164, 170, 180). If insufficient time slots and data rate power are determined, a deny request message is transmitted to the base station (184).
    Type: Application
    Filed: October 15, 2002
    Publication date: April 15, 2004
    Inventors: Jonathan H. Gross, Daniel R. Tayloe, Shawn W. Hogberg
  • Publication number: 20040071126
    Abstract: The present invention describes a novel method, radio access node and system for specifying and interpreting identifiers in a telecommunications system. In the method of the present invention, an RNC identifier extension element extending the RNC identifier is created and one or more radio access network nodes are specified with the RNC identifier and RNC identifier extension element extending the RNC identifier in the first and/or second interface instance. In a preferred embodiment, the RNC identifier and RNC identifier extension element extending the RNC identifier specify a radio network access server and an IP base station in the second interface.
    Type: Application
    Filed: October 15, 2002
    Publication date: April 15, 2004
    Inventors: Gabriel Ramos-Escano, Fabio Longoni
  • Publication number: 20040071127
    Abstract: A method for directing a packet to a required bearer of a set of bearers.
    Type: Application
    Filed: November 10, 2003
    Publication date: April 15, 2004
    Inventor: Tuija Hurtta
  • Publication number: 20040071128
    Abstract: A reliable multicast data retransmission method by grouping wireless terminals in a wireless communication environment and performing multicast data retransmission for a particular group of wireless terminals that needs multicast data retransmission, thereby providing reliable multicast data retransmission and improving the efficiency of a network. The multicast data retransmission method includes grouping wireless terminals based on distances between an access point and the wireless terminals and the amplitudes of signals output from the wireless terminals, selecting a repeater, which is to retransmit multicast packets, from each group and arranging the order in which repeaters retransmit multicast packets, creating a multicast packet train header indicating characteristics of each of the multicast packets, multicasting the created multicast packet train header. The multicast packets are retransmitted in the arranged order.
    Type: Application
    Filed: July 2, 2003
    Publication date: April 15, 2004
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyung-Hun Jang, Hyo-Sun Hwang, Jong-Ae Park