Patents Issued in January 29, 2008
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Patent number: 7324444Abstract: A method of adapting a playout schedule of a stream of media packets according to network and channel conditions includes (a) setting a playout schedule for a next packet i+1 of the stream upon receiving a current packet i; (b) computing a length of the current packet i based at least in part on a target playout schedule for the next packet i+1; (c) scaling packet i if necessary; (d) outputting packet i; and (e) updating the playout schedule for next packet i+1 based at least in part on the playout schedule and the length of current packet i.Type: GrantFiled: March 5, 2003Date of Patent: January 29, 2008Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Yi Liang, Bernd Girod
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Patent number: 7324445Abstract: The present invention relates to method and apparatus for reproducing a data stream having a multiple reproduction paths recorded on a high-density optical disk. The present method ensures seamless reproduction of video and audio data of a multi-path data stream by removing possible buffer underrun even when the reproduction path is changed during reproduction.Type: GrantFiled: November 25, 2003Date of Patent: January 29, 2008Assignee: LG Electronics Inc.Inventors: Kang Soo Seo, Byung Jin Kim, Soung Hyun Um
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Patent number: 7324446Abstract: The present invention relates to a communication method, and related buffering and line termination elements to be used in a communication network. The communication network includes a buffering element, a line termination element and several network termination elements. The buffering element is coupled to the line termination element, and the line termination element is coupled to each of the network termination elements over a shared medium. The buffering element and the line termination element interact in such a way that the line termination element adjusts a cell input/output rate of the buffering element to bandwidth related conditions of the network termination elements, or vice versa.Type: GrantFiled: August 10, 2001Date of Patent: January 29, 2008Assignee: AcatelInventors: Kristiaan Johan Hubert Ghislanus Venken, Stefaan Jozef De Cnodder
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Patent number: 7324447Abstract: Methods, apparatuses and systems facilitating the concurrent classification and control of tunneled and non-tunneled data flows in a packet-based computer network environment. As discussed in more detail below, embodiments of the present invention allow for the “intra-tunnel” classification of data flows and, based on the classification, the deterministic and intelligent application of aggregate bandwidth utilization controls on data flows corresponding to a given tunnel. Embodiments of the present invention allow for the allocation of bandwidth on an application-level basis between tunneled and non-tunneled traffic, as well as between applications within a given tunnel. Other embodiments of the present invention can be configured to provide a differentiated security model for non-tunneled and tunneled traffic. In addition, embodiments of the present invention can be further configured to implement a layered security model for tunneled traffic.Type: GrantFiled: September 30, 2002Date of Patent: January 29, 2008Assignee: Packeteer, Inc.Inventor: Michael Robert Morford
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Patent number: 7324448Abstract: A method classifying service classes of packet data through an algorithm using several parameters is disclosed, in order to control the order of data transmission in a two-way communication network which supports various data transmissions having different kinds of quality of service (QoS).Type: GrantFiled: November 28, 2001Date of Patent: January 29, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Sung-Won Lee, Jae-Woo So, Sun-Ho Lee, Hye-Jeong Lee, Dong-Ho Cho
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Patent number: 7324449Abstract: Various embodiments are described to address the need to lower backhaul costs for EGPRS operators while maintaining the low and constant delay characteristics they require. 20 msec TRAU frames (221-226) are still used for backhaul to maintain the low and constant delay. However, to eliminate the restriction of mapping TRAU timeslots to air timeslots (211-218) one-to-one, the TRAU slots are collectively treated as a one large 20 msec TRAU frame for a group of air timeslots. The data for the air timeslots can be packed efficiently into this giant TRAU frame, ignoring backhaul timeslot boundaries. In this way, the appropriate amount of backhaul for the carrier can be allocated and the data for the air interface timeslots more efficiently packed into the backhaul.Type: GrantFiled: March 11, 2004Date of Patent: January 29, 2008Assignee: Motorola, Inc.Inventors: Jeffrey C. Smolinske, Jyoti N. Black
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Patent number: 7324450Abstract: Method and apparatus for remotely programming a functionality of an integrated circuit (IC) are described herein. In one aspect, exemplary method includes receiving a command for enabling a functionality of an integrated circuit (IC) from a remote facility over a network, and enabling the functionality of the IC in response to the command. Other methods and apparatuses are also described.Type: GrantFiled: March 31, 2003Date of Patent: January 29, 2008Assignee: Intel CorporationInventor: Delton John Oliver
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Patent number: 7324451Abstract: A method and device for message discard of segmented message traffic in an aggregated message traffic stream of a communications network. The aggregated traffic stream has constituent traffic streams and each constituent traffic stream has segmented message traffic made up of formative segmented message units. An indication of whether a currently received segmented message unit of each constituent traffic stream is to be subjected to discard is stored in a memory. Upon each arrival of a segmented message unit, a detection is made by way of a reader as to whether a currently received segmented message unit denotes a delineation between two segmented messages. A determination of whether a current condition of traffic congestion exists is also made, and a processor utilizes the stored indication, the detection and the determination in arriving at whether a next to be received segmented message unit of the constituent message traffic stream is to be subjected to message discard.Type: GrantFiled: October 30, 2003Date of Patent: January 29, 2008Assignee: AlcatelInventors: Asad Fowad Hanif, Ronald Jeffery
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Patent number: 7324452Abstract: A system for managing data transmission from a number of queues employs a regular credit count and a history credit count for each queue. Generally, the regular credit count is used in arbitration. The count is decreased when data is transmitted from the queue and increased at given intervals if the queue is facing no transmission-blocking backpressure. The history credit count is increased in lieu of the regular credit count when transmission from the queue is blocked. Thus, the history credit count keeps track of potential transmission opportunities that would be lost due to the blocking of transmission from the queue. The history credit counts are periodically polled instead of the regular credit counts to give each queue an opportunity to catch up in its use of transmission opportunities.Type: GrantFiled: January 14, 2002Date of Patent: January 29, 2008Assignee: Fujitsu LimitedInventors: Hong Xu, Mark A. W. Stewart
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Patent number: 7324453Abstract: Method and apparatus for implementing a constraint-based shortest path first (“CSPF”) technique for dynamically switched optical transport networks are described. One embodiment comprises a traffic network element (“TNE”) in a network comprising a traffic engineering network database (“TEND”) that stores network topology information for the network and bandwidth availability information for links in the network; and a routing engine that receives a request for a label switched path (“LSP”) with specified constraints, processes network topology information from the TEND to create a network graph comprising links meeting the specified constraints, and computes a primary path through the network, wherein the primary path comprises links selected from the network graph.Type: GrantFiled: December 16, 2002Date of Patent: January 29, 2008Assignee: Alcatel LucentInventors: Fuming Wu, Frederick H. Skoog
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Patent number: 7324454Abstract: In a router supporting a packet relay function based on a routing table, and also a VPN (Virtual Private Network) function, an output port deciding portion decides an output port different from a normal output port indicated as an output port corresponding to a destination address of a communication confirming packet based on the routing table, and packet transmitter transmits the communication confirming packet through the decided output port. A communication confirming packet determining portion determines a communicating state based on a response packet for the communication confirming packet received from the destination router of the communication confirming packet returned from another router connected to the output port and relayed by its own router.Type: GrantFiled: December 16, 2004Date of Patent: January 29, 2008Assignee: Fujitsu LimitedInventors: Yoshiaki Horinouchi, Hiroshi Yamada, Hironori Ochiai, Takashi Yamamoto
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Patent number: 7324455Abstract: A computer Input/Output system having a fabric, a control unit (CU) and a host computer including a channel, the channel having a channel port connected by a first link to a channel neighbor port of the fabric, and the control unit having a CU port connected by a second link to a CU neighbor port on the fabric. When an error is detected in the link or protocol between the channel and the control unit, error data are reported to the channel by the channel, the channel port, the channel neighbor port, the control unit, the CU port and the CU neighbor port and sent to the channel. The error data are provided to the host computer for analysis.Type: GrantFiled: March 14, 2003Date of Patent: January 29, 2008Assignee: International Business Machines CorporationInventors: Robert J. Dugan, John R. Flanagan, Giles R. Frazier, Matthew J. Kalos, Louis W. Ricci, Kenneth M Trowell, Harry M. Yudenfriend
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Patent number: 7324456Abstract: A tester and related method test an xDSL transceiver unit-central office so as to measure performance of a transceiver unit by automatically converting many output ports by connecting a multiplexer to the xDSL transceiver unit.Type: GrantFiled: January 30, 2004Date of Patent: January 29, 2008Assignee: Samsung Electronics Co., Ltd.Inventor: Yong-Jin Park
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Patent number: 7324457Abstract: A method and apparatus are disclosed for compensating for optical transmission delays in a synchronous mobile communication system. A Base Station Transceiver Subsystem (BTS) includes a Main Unit (MU) for processing a mobile communication signal and a plurality of Remote Units (RUs) connected to the MU by Synchronous Digital Hierarchy (SDH) transmission, for performing radio processing for communication with a Mobile Station (MS). The method comprises the steps of sequentially forming a loop on an optical transmission line to each of the RUs for optical transmission delay compensation test between the MU and each of the RUs; once a loop for the optical transmission delay compensation test is formed, transmitting a test SDH frame to a corresponding RU, and measuring a delay time until the test SDH frame is fed back; and transmitting data to the corresponding RU after compensating the transmission time by the measured delay time.Type: GrantFiled: January 14, 2003Date of Patent: January 29, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Hyun-Pyo Lee, Kwang-Hee Han, Jeong-Deog Seo
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Patent number: 7324458Abstract: In some embodiments, a chip comprises control circuitry to provide inband signals, inband output ports, and transmitters to transmit the inband signals to the inband output ports. The control circuitry selectively includes loopback initiating commands in the inband signals. Other embodiments are described and claimed.Type: GrantFiled: March 21, 2003Date of Patent: January 29, 2008Assignee: Intel CorporationInventors: Theodore Z. Schoenborn, Andrew W. Martwick, David S. Dunning
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Patent number: 7324459Abstract: A negotiation unit for operation in a communication system whereby a first communication unit may transmit data to a second communication unit by means of a protocol including the step of negotiating a parameter for use in the operation of the protocol by the transmission of a first negotiation message to the second communication unit and in response thereto the transmission of a second negotiation message from the second communication unit to the first communication unit, the negotiation messages being configured to be capable of including data defining a value for the parameter, the negotiation unit comprising: storage means for storing information on a criterion on the parameter, interception means for intercepting at least one of the negotiation messages directed towards one of the first and second communication units; and message analysis means for analysing the intercepted negotiation message and if the message includes a value for the parameter f) checking whether the stored criterion on the value is mType: GrantFiled: September 20, 2001Date of Patent: January 29, 2008Assignee: Nokia CorporationInventors: Juha Rasanen, Jani Ekman, Janne Haikonen, Antti Vahatalo
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Patent number: 7324460Abstract: A method for controlling the flows of data packets that are switched or routed at nodes of high-speed communication networks is disclosed. According to the invention, resource metering units are assigned to resources shared between devices of the switch or router e.g., shared memories or link bandwidths. When the occupancy of a shared resource reaches a predetermined threshold, an event is generated and transmitted to devices sharing this resource. Furthermore, a periodic refresh of the overall flow control information is performed so that lost events are, however, eventually acted on. Thus, a new device may become active without perturbing the active flows after having gathered enough flow control information.Type: GrantFiled: September 29, 2003Date of Patent: January 29, 2008Assignee: International Business Machines CorporationInventors: Rene Gallezot, Rene Glaise, Francois Le Maut
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Patent number: 7324461Abstract: A network (e.g., RSTP-based network) and method are described herein that can selectively eliminate latencies in the exchange of to-be-transmitted control messages (e.g., BPDUs) between bridges during the re/convergence of the network. The method includes a step of classifying to-be-transmitted control messages as either low-priority control messages or high-priority control messages. The method also has a step of limiting the transmission rate of the low-priority control messages in accordance with a traditional IEEE 802.1 RSTP. And, the method also includes a step of immediately transmitting the high-priority control messages that contain information that contributes to the re/convergence of the network.Type: GrantFiled: August 26, 2003Date of Patent: January 29, 2008Assignee: Alcatel LucentInventors: Jessy V. Rouyer, Girish Chiruvolu
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Patent number: 7324462Abstract: An improved method for wireless device discovery that enables a user to select devices by a descriptive identifier rather than a unique alphanumeric identifier. In addition, the method allows for certain wireless devices to be pre-configured for connection such that if they are requested, the method automatically connects the requesting device with the selected device.Type: GrantFiled: July 25, 2002Date of Patent: January 29, 2008Assignee: 3Com CorporationInventors: Kenin Page, Elwin Hunt
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Patent number: 7324463Abstract: A communication control apparatus that enables a personal computer usually connected to a LAN when in use to be connected temporarily to the same LAN from a different location and via a different communication device, while ensuring security without time and effort spent on configuration. A communication control apparatus connected to a LAN including a server, personal computers and communication devices (e.g., routers) that relay data between the server and the personal computers is provided with: a storage device that stores a scheduled time at which a personal computer is connected for use at another location in the same LAN, information of a communication device for the other location and configuration information of the communication device for enabling communication with the personal computer; and a timer indicating a time.Type: GrantFiled: February 8, 2005Date of Patent: January 29, 2008Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yukio Takada, Hirotaka Ino, Megumi Shimizu, Yayoi Tanaka
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Patent number: 7324464Abstract: The communication system includes multiple participating devices connected with each other by a data line. At least one connection device for connection to a corresponding participant device defined as associated with it is connected to the data line. The communication system is preferably an IP network and with respective connection devices defined as associated with corresponding participating devices, which are used to connect portable operating and display terminals with the participating devices. For definite identification of the corresponding participating device associated with the respective connection devices, the connection devices include readable means of identifying the corresponding participating device, e.g. including a stored IP address, which is readable by the connected interface device, i.e. the terminal.Type: GrantFiled: September 25, 2003Date of Patent: January 29, 2008Assignee: Rexroth Indramat GmbHInventors: Kai-Uwe Patz, Frank Hielscher
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Random access channel access apparatus for mobile satellite communication system and method therefor
Patent number: 7324465Abstract: The present invention relates to Random Access Channel (RACH) access apparatus for mobile satellite communication system and method therefor. The method for accessing random access channel (RACH) on satellite system, random access channel (RACH) carrying message from a plurality of mobile stations to the satellite system, the method includes the steps of: receiving preamble and the message, the message successively transmitted with the preamble from the plurality of mobile stations; and transmitting acquisition response signal corresponding to the preamble or the message to the plurality of mobile stations. Accordingly, success of packet reception of satellite system is improved and transmission delay is reduced.Type: GrantFiled: October 17, 2001Date of Patent: January 29, 2008Assignee: Electronics and Telecommunications Research InstituteInventors: Kwang-Jae Lim, Soo-Young Kim, Ho-Jin Lee, Moon-Hee You -
Patent number: 7324466Abstract: An echo canceling system and an echo canceling method are provided, which can deal with the case where there are a plurality of echo paths and respond to the variation in echo arrival times. An echo canceling method to be applied to a full-duplex communication system includes detecting a respective echo arrival time of one or plural echo paths based on a reference signal and an echo signal, calculating as many pseudo-echo signals as the detected arrival times, overlapping the calculated pseudo-echo signals to obtain an overall pseudo-echo signal, and subtracting the overall pseudo-echo signal from the echo signal. A FFT processing is performed with respect to the reference signal and the echo signal, and a similar canceling processing is carried out using an amplitude spectrum alone.Type: GrantFiled: August 27, 2003Date of Patent: January 29, 2008Assignee: Fujitsu LimitedInventor: Naoshi Matsuo
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Patent number: 7324467Abstract: Bridge circuit for echo suppression for a reception signal of a communication device connected to a transmission line, to which can be supplied a reception signal received via the transmission line and a transmission signal to be transmitted by the communication device via the transmission line. The bridge circuit is designed such that on balancing the bridge circuit, the reception signal there can be tapped echo-compensated with a transmission signal part generated by the transmission signal being suppressed. To balance the bridge circuit a variable simulation device is provided to simulate at least one circuit section of at least one bridge branch and connect with the at least one bridge branch. By such an arrangement, the signal level in the simulation device may be reduced so far that this can be designed as an integrated circuit and to be programmable.Type: GrantFiled: October 7, 2003Date of Patent: January 29, 2008Assignee: Infineon Technologies AGInventor: Christian Fleischhacker
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Patent number: 7324468Abstract: A method and apparatus for accessing, controlling and utilizing a network communication medium. Various aspects of the present invention may comprise a first networked device with power-save capability. The first networked device may acquire control of a communication medium utilizing a medium access protocol, which may be contention-based. The first networked device may utilize the communication medium to communicate information to a second networked device. The first networked device may transfer control of the communication medium to the second networked device, whereby the second networked device may control the communication medium without having to acquire control of the communication medium by utilizing the medium access protocol. The second networked device may utilize the communication medium to communicate information to the first networked device while maintaining control over the communication medium.Type: GrantFiled: February 2, 2004Date of Patent: January 29, 2008Assignee: Broadcom CorporationInventor: Matthew J. Fischer
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Patent number: 7324469Abstract: A satellite distributed high-speed Internet “Hotspot” enables wireless and hardwired, satellite distributed Internet access for anyone with a PC or other web-ready device (wireless ready or cabled) and a valid credit card or prepaid coupon. The Hotspots can be located anywhere there is 120 volt electricity available or access to the sun for a solar panel and enough space to house the transceiver and mount a satellite dish. Upon connecting to the Hotspot, the user is directed to a remote server for log-on and validation of the user's account. During validation, the remote server verifies that prepaid access time remains in the user's account. Upon validation, the user may browse the web until the prepaid access time runs out. Alternatively, an account may be set up on a “continue until canceled” basis, wherein the user's credit card will be charged for the amount of time used during each session.Type: GrantFiled: September 27, 2004Date of Patent: January 29, 2008Assignee: System Services, Inc.Inventor: W. David Wilson
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Patent number: 7324470Abstract: An FDD/CDMA transmission/reception system includes a CDMA transmitter and a CDMA receiver. The CDMA transmitter includes a plurality of transmission antennas, signal transmission units for transmitting transmission signals weighted by different values to the respective transmission antennas, and pilot signal transmission units for transmitting a plurality of different pilot signals to the respective transmission antennas. The CDMA receiver includes a reception unit for obtaining one received signal from the transmission signals from the plurality of transmission antennas of the CDMA transmitter in consideration of reception quality, and a unit for transmitting antenna control signals corresponding to reception power values of the received pilot signals to the CDMA transmitter.Type: GrantFiled: September 21, 2001Date of Patent: January 29, 2008Assignee: NEC CorporationInventors: Shousei Yoshida, Akihisa Ushirokawa
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Patent number: 7324471Abstract: An in-building mobile communication system. The in-building mobile communication system comprising a transmission/reception repeater for performing both transmission and reception via an antenna, with respect to a terminal, the transmission/reception repeater being installed in the center of a building, at least one transmission repeater for performing only transmission, with respect to the terminal, which is installed a certain preset distance away from the transmission/reception repeater, the transmission repeater facing the transmission/reception repeater, at least one transmitter/receiver unit connected in parallel with the repeaters, and a base station device connected with the transmitter/receiver unit.Type: GrantFiled: September 18, 2002Date of Patent: January 29, 2008Assignee: Samsung Electronics Co., Ltd.Inventor: Kyung-Hwan Kim
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Patent number: 7324472Abstract: A transmission method is provided whereby data of different classes are transmitted and different reliability positions exist, with the bits of the different classes being mapped to respective reliability positions.Type: GrantFiled: October 2, 2002Date of Patent: January 29, 2008Assignee: Siemens AktiengesellschaftInventors: Martin Döttling, Jürgen Michel, Bernhard Raaf
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Patent number: 7324473Abstract: A connector gateway system that provides mobile devices with access to business services is disclosed. The connector gateway system comprises a mobile device that includes an application that is capable of generating a service request. The service request may be generated from the application and may include a DNS name that translates to an address on the connector gateway server. The connector gateway server performs a lookup operation to determine the business server associated with the service request. The connector gateway server creates a data filter that drives an emulation between the mobile device and the business server to pump data between the mobile device and the business server.Type: GrantFiled: October 7, 2003Date of Patent: January 29, 2008Assignee: Accenture Global Services GmbHInventors: Kevin R. Corneille, John D. Sherwin
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Patent number: 7324474Abstract: Techniques are provided for conserving network resources in a network that initiates data services by communicating push data to a dormant terminal. Selected network resources associated with the dormant terminal are released, and maintained information for reaching the dormant terminal is updated when the point of network attachment of the dormant terminal changes.Type: GrantFiled: September 23, 2004Date of Patent: January 29, 2008Assignee: QUALCOMM IncorporatedInventors: Masakazu Shirota, Jack Wallace Nasielski, Jun Wang, Raymond Tah-Sheng Hsu
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Patent number: 7324475Abstract: In a radio communication apparatus having a plurality of transmitting and receiving functions that enable simultaneous signal transmission and reception, an arbitrary number of transmitting and receiving functions are assigned to another radio communication apparatus based on channel states.Type: GrantFiled: February 25, 2003Date of Patent: January 29, 2008Assignee: Kabushiki Kaisha ToshibaInventors: Kazumi Sato, Kiyoshi Toshimitsu
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Patent number: 7324476Abstract: Methods, systems, and products are provided for establishing RFID-based telecommunications routing for a user including identifying a plurality of telephony devices available to a user, identifying the location of the plurality of telephony devices available to the user, receiving from a user routing preferences, receiving an identification of an RFID tag for the user, and associating with the user the identified telephony devices available to a user, the locations of the plurality of devices available to the user, the routing preferences, and the identification of the RFID tag.Type: GrantFiled: November 4, 2004Date of Patent: January 29, 2008Assignee: International Business Machines CorporationInventors: Kavita Kumari Agrawal, William Kress Bodin, Gregory Waldemar Rybczynski, Derral C. Thorson
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Patent number: 7324477Abstract: A method is provided for use in a radio communications system according to which a channel which can be mutually used by a number of subscriber stations, consists of at least two channels that can be allocated to a number of parallelly existing connections for temporally successive use. The channels are structured according to a sequence known to the subscriber stations. A number of channels or a data rate is assigned to a subscriber station by using a subscriber individual signaling message. In addition, a starting point and/or a direction in the sequence is signaled to the subscriber station order to select the channels.Type: GrantFiled: May 21, 2002Date of Patent: January 29, 2008Assignee: Siemens AktiengesellschaftInventors: Axel Meiling, Marcus Purat
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Patent number: 7324478Abstract: The present invention discloses an apparatus and method for deciding an access system based on WLAN signal strength in a WLAN/mobile phone network interworking system, and a mobile terminal therefor. The method for deciding the access system based on the WLAN signal strength in the WLAN/mobile phone network interworking system includes an initialization step for performing an initialization process on a WLAN driver module and a mobile phone network driver module, and measuring and displaying WLAN signal strength, a service decision step for selecting a WLAN service or mobile phone network service according to the measured WLAN signal strength, and a service access step for enabling the corresponding driver module to access the service decided in the service decision step.Type: GrantFiled: April 28, 2003Date of Patent: January 29, 2008Assignee: SK Telecom Co., Ltd.Inventors: Seong-Soo Park, Chan-Jeom Phang, Dong-Hahk Lee, Yong-Sik Shin, Sang Shin Lee
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Patent number: 7324479Abstract: A cell search method in an asynchronous mobile communication system. For cell search, a UE searches signals received from Node Bs in a slot synchronization step, calculates the timing offset of each of the Node Bs by comparing signals having slot peaks higher than a first threshold with each other among the searched signals in a frame synchronization and code group identification step, and detects the timing offsets of neighbor Node Bs by comparing the timing offsets of signals higher than a second threshold with each other in a code identification step. In addition, Node Bs that transmit signals higher than the second threshold in the code identification step are included in a candidate set and are subject to a cell search periodically.Type: GrantFiled: October 28, 2002Date of Patent: January 29, 2008Assignee: Samsung Electronics Co., LtdInventor: Seong-Ho Hur
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Patent number: 7324480Abstract: A mobile communication apparatus including a base station and at least two mobile stations, having multiple antennas, respectively is provided. In the mobile communication apparatus, the base station restores from feedback signals transmitted from the mobile stations weight information determined in the mobile stations, generates from the restored weight information downlink control information ensuring maximum throughput to each of the mobile stations, and selects from among data of all of the mobile stations data of a desired mobile station(s) to be transmitted, based on the downlink control information. Each of each of the mobile stations has at least one mobile station antenna, the base station has at least two base station antennas, and the downlink control information includes mobile station selection information, an optimal basis matrix index, and optimal gain indices. As a result, nominal peak throughput in multi-antenna mobile communications can be efficiently achieved at low costs.Type: GrantFiled: July 10, 2003Date of Patent: January 29, 2008Assignees: Samsung Electronics., Ltd.Inventors: Sung-Jin Kim, Ki-Ho Kim, Chang-Soon Park, Kwang-Bok Lee
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Patent number: 7324481Abstract: A radio transmitting apparatus that has a plurality of antennas and changes the number of modulated signals transmitted simultaneously according to the propagation environment and so forth. A transmission power changing section 12 of a radio transmitting apparatus of the present invention adjusts the pilot symbol signal level so as to match the data symbol composite signal level according to the number of transmit modulated signals set by a modulated signal number setting section 11. By this means, the operating range of received pilot symbols and the operating range of received data symbols become approximately the same on the receiving side, enabling pilot symbol quantization error to be reduced. As a result, the precision of radio wave propagation environment estimation, time synchronization, and frequency offset estimation using pilot symbols improves, and consequently data reception quality improves.Type: GrantFiled: August 4, 2004Date of Patent: January 29, 2008Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kiyotaka Kobayashi, Yutaka Murakami, Masayuki Orihashi
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Patent number: 7324482Abstract: General binary design criteria for PSK-modulated space-time codes are provided. For linear binary PSK (BPSK) codes and quadrature PSK (QPSK) codes, the rank (i.e., binary projections) of the unmodulated code words, as binary matrices over the binary field, is used as a design criterion. Fundamental code constructions for both quasi-static and time-varying channels are provided.Type: GrantFiled: January 13, 2004Date of Patent: January 29, 2008Assignee: The DIRECTV Group, Inc.Inventors: A. Roger Hammons, Jr., Hesham El Gamal
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Patent number: 7324483Abstract: To simplify a protocol structure for a packet data service in a CDMA mobile communication system, an ATM protocol is used for communication between an SGSN and a GGSN and a downlink TEID and an uplink TEID are assigned to an RNC and the GGSN and thereby, GTP tunnels are integrated into one GTP tunnel.Type: GrantFiled: July 9, 2002Date of Patent: January 29, 2008Assignee: Samsung Electronics Co., LtdInventor: Jung-Sup Lee
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Patent number: 7324484Abstract: A reverse link controlling method in a mobile communication system. To increase or decrease a reverse data rate, an MS receives threshold power information indicating a power threshold for a pilot channel from the BS and measures the reception power of the pilot channel received from the BS. When the MS is supposed to increase or decrease the current data rate, it increases the current data rate by two levels or decreases the current data rate by one level if the pilot reception power is higher than the power threshold, and increases the current data rate by one level or decreases the current data rate by two levels if the pilot reception power is equal to lower than the power threshold.Type: GrantFiled: October 28, 2002Date of Patent: January 29, 2008Assignee: Samsung Electronics Co., LtdInventors: Beom-Sik Bae, Dong-Seek Park, Chang-Hoi Koo, Dae-Gyun Kim, Young-Wook Jung, Dong-Ho Cho, Jung-Woo Cho
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Patent number: 7324485Abstract: A method of operating a wireless communications unit (UE) to request a connection with a base station (10) is disclosed. The wireless unit (UE) receives a signal from the base station (10) indicating at least one time slot within which a preamble may be transmitted by the wireless communications unit (UE). The wireless unit (UE) selects one of a plurality of orthogonal codes (hi) for the preamble and generates a spread code using the selected orthogonal code. The spread code (70) is arranged as a symbol (hi) of the selected code, repeated a selected number of repetitions. The wireless unit (UE) transmits the preamble signal corresponding to the spread code to the base station (10).Type: GrantFiled: June 8, 2004Date of Patent: January 29, 2008Assignee: Texas Instruments IncorporatedInventor: Anand G. Dabak
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Patent number: 7324486Abstract: A second wireless communication system comprises reception means for receiving a control signal transmitted by a first wireless system which defines its own communication-enabled period based on the control signal, and communication control means for determining, based on the control signal, a vacant time region in the communication-enabled period that is not utilized by the first wireless communication system, and allocating the vacant time region as its own communication time region.Type: GrantFiled: November 25, 2002Date of Patent: January 29, 2008Assignee: Sharp Kabushiki KaishaInventors: Shigetaka Noguchi, Minoru Kosaka, Katsuyuki Machino
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Patent number: 7324487Abstract: In a wireless communication system including base transceiver stations connected to a wired network and wireless system terminals, the wireless system terminals are individually registered in a plurality of communicable base transceiver stations and at the same time set in a multilink connection state. Then, a base transceiver station that has a lower communication load and in a more stable communication state at current point in time is selected from among the multilink base transceiver stations connected to a wireless system terminal, thereby performing data communication with the wireless system terminal. With this arrangement, when an individual fixed connection is switched, no load is produced at the time of roaming, and stabilization of communication and balancing of communication loads resulting from switching of the base transceiver stations for use are realized. The throughput of the overall wireless communication system is thereby improved.Type: GrantFiled: February 10, 2003Date of Patent: January 29, 2008Assignee: Hitachi, Ltd.Inventor: Jun Saito
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Patent number: 7324488Abstract: The present invention presents a method and system for providing an intelligent data concentrator communicatively coupled to a network by a wireless mode. Specifically, the present invention comprises a portable intelligent device, communicatively connected to a network by a wireless mode, which may, for example, be placed in the center of a conference table to facilitate a number of client devices connecting for simultaneous access to the network and, at the same time, allowing for ease in moving about the room. In one embodiment, the portable intelligent data concentrator is communicatively coupled by a wireless mode to an access point. In one embodiment, the intelligent data concentrator is battery powered. In one embodiment, the access point through which the intelligent data concentrator is connected to the network is another intelligent data concentrator. In another embodiment, the access point is a Bluetooth access point.Type: GrantFiled: February 10, 2003Date of Patent: January 29, 2008Assignee: 3Com CorporationInventors: Alan Rubinstein, Bhakt Patel, Gary Wang, Yung-Fu Chang
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Patent number: 7324489Abstract: Managing network service access includes receiving a packet data service request. The packet data service request is associated with a mobile subscriber and a service identifier that can bypass validation for accessing a traffic destination. Access is requested from an access node in response to the packet data service request. The access node maps a target access point to the mobile subscriber, where the target access point provides the mobile subscriber with access to the traffic destination. An access acceptance message is received from the access node, where the access acceptance message identifies the target access point. A packet data context is created by associating the target access point with the mobile subscriber to allow the mobile subscriber to access the traffic destination.Type: GrantFiled: February 18, 2003Date of Patent: January 29, 2008Assignee: Cisco Technology, Inc.Inventor: Jayaraman R. Iyer
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Patent number: 7324490Abstract: A relay device acquires and stores address binding information indicating correspondence between a static communication address and a dynamic communication address of a mobile terminal which is linked to the relay device. The relay device also stores address binding information of other mobile terminals to which packets are sent from the source terminal. A management server stores the address binding information pertaining to the source terminal, and also stores the communication status information of the other mobile terminals with which the terminal is communicating. When the terminal terminates communication, the relay device and the server delete the address binding information pertaining to the source terminal by cooperating with each other.Type: GrantFiled: February 17, 2004Date of Patent: January 29, 2008Assignee: NTT DoCoMo, Inc.Inventors: Katsutoshi Nishida, Takatoshi Okagawa, Manhee Jo
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Patent number: 7324491Abstract: Embodiments control access to a wireless network providing communication for wireless traffic and controlled by a wireless access point to assure quality of service for designated traffic by assigning all communication of the designated traffic to use one of the priorities on the wireless network, requiring that ones of the wireless traffic wanting to communicate using the one of the priorities and higher ones of the priorities and using a distributed medium access protocol submit bandwidth reservation requests to the wireless access point, granting a bandwidth reservation to one of the wireless traffic for communication by the wireless access point in response to a bandwidth reservation request upon bandwidth being available on the wireless network, and allowing other ones of the wireless traffic to communicate using lower ones of the priorities without requiring bandwidth reservation requests.Type: GrantFiled: October 28, 2004Date of Patent: January 29, 2008Assignee: Avaya Technology LLCInventor: Mathilde Benveniste
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Patent number: 7324492Abstract: Methods and apparatus for enabling a Mobile Node supporting mobile IP to roam without an assigned IP address and receive lookups indicating that a Corresponding Node wants to send information to the Mobile Node are disclosed. A name lookup may be sent from a Corresponding Node to a Home Agent that has previously registered the Mobile Node. The name lookup may be sent through an intermediate device, including a Domain Name Server, such that the intermediate device contacts the Home Agent. During the name lookup process, an IP address is allocated to the Mobile Node and a data path is established between the Home Agent and the Mobile Node via a Foreign Agent. When the lookup is completed successfully, the Home Agent sends the IP address allocated to the Mobile Node in the name lookup process to the device requesting the lookup. The IP address of the Mobile Node may then be used by the Corresponding Node to “push” information to the Mobile Node.Type: GrantFiled: November 7, 2005Date of Patent: January 29, 2008Assignee: Cisco Technology, Inc.Inventors: Kent K. Leung, Gopal K. Dommety
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Patent number: 7324493Abstract: A 3-frequency branching circuit in the past could not be used for a system wherein a TDMA method such as GSM and DCS and a W-CDMA method such as UMTS are mixed. The 3-frequency branching circuit equipped with branching means having first and second internal terminals, an antenna terminal of connecting to an antenna, a low-pass filter connected between the first internal terminal and the antenna terminal, and a high-pass filter connected between the second internal terminal and the antenna terminal, a switching circuit of switching between GSM TX and GSM RX, a switching circuit of switching between DCS TX, DCS RX and a third internal terminal, and a duplexer connected to the third internal terminal.Type: GrantFiled: June 25, 2001Date of Patent: January 29, 2008Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Toru Yamada, Tsutomu Matsumura, Toshio Ishizaki, Hiroyuki Nakamura, Kazuhide Uriu