Patents Issued in February 1, 2007
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Publication number: 20070025258Abstract: An Ethernet switch (112) has a communications interface (122), and a controller (124). The controller is programmed to receive (202) an IP query packet generated by a receiver for collecting telemetry data between a source and the receiver in a multicast network, translate (206) the IP query packet to an Ethernet query packet, collect (208) in the Ethernet query packet telemetry data from the Ethernet switch, and submit (218) the Ethernet query packet to the next network element of the multicast network. Additional embodiment are disclosed.Type: ApplicationFiled: July 28, 2005Publication date: February 1, 2007Applicant: SBC Knowledge Ventures LPInventor: Weijing Chen
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Publication number: 20070025259Abstract: A method includes representing a communication endpoint as a protocol stack having a plurality of protocol software modules, each of the plurality of protocol software modules providing associated protocol services for a packet flowing through the protocol software module, and enabling a test application to access internal state information of the packet as the packet moves between the plurality of protocol software modules. A computer program product and system are also provided.Type: ApplicationFiled: August 1, 2005Publication date: February 1, 2007Inventor: Barry Reinhold
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Publication number: 20070025260Abstract: In a data communication system capable of variable rate transmission, high rate packet data transmission improves utilization of the forward link and decreases the transmission delay. Data transmission on the forward link is time multiplexed and the base station transmits at the highest data rate supported by the forward link at each time slot to one mobile station. The data rate is determined by the largest C/I measurement of the forward link signals as measured at the mobile station. Upon determination of a data packet received in error, the mobile station transmits a NACK message back to the base station. The NACK message results in retransmission of the data packet received in error. The data packets can be transmitted out of sequence by the use of sequence number to identify each data unit within the data packets.Type: ApplicationFiled: October 2, 2006Publication date: February 1, 2007Inventors: Roberto Padovani, Paul Bender, Peter Black, Matthew Grob, Jurg Hinderling, Nagabhushana Sindhushayana, Charles Wheatley
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Publication number: 20070025261Abstract: Methods and apparatus for testing performance of an system under test are disclosed. The system under test is loaded with simulated traffic which may be generated from a single test port. The performance of the system under test under load may be tested.Type: ApplicationFiled: August 3, 2006Publication date: February 1, 2007Inventors: Errol Ginsberg, Victor Alston, Aloysius Wild, Ankur Sheth, Winston Liu, Periakaruppan Ram
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Publication number: 20070025262Abstract: The variation cycle L of the characteristics of a transmission line is divided into a plurality of sections (n sections), a procedure is repeated in which transmission line estimation is performed for only one section among n sections in one beacon period, and thus transmission line estimation is performed for all of the n sections. The beacon period T is set based on (T=L×m/n), where n is an integer that is 2 or larger, and m is an integer that is n or larger and whose greatest common measure with n is 1.Type: ApplicationFiled: August 19, 2005Publication date: February 1, 2007Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Shigeo Yoshida, Shinichiro Ohmi, Tohru Yasukawa, Tsuyoshi Yamaguchi
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Publication number: 20070025263Abstract: Methods and systems for estimating available bandwidth on an internet access network are presented. A method includes: (a) transmitting one or more Internet Control Message Protocol (ICMP) echo request packets to a device residing on the network at a first bit rate; (b) receiving one or more ICMP echo reply packets corresponding to the one or more ICMP echo request packets responsive to step (a); and (c) determining a second bit rate for the one or more ICMP echo reply packets. If the second bit rate is less than the first bit rate, available bandwidth is estimated based on the second bit rate. If the second bit rate is not less than the first bit rate, steps (a), (b) and (c) are repeated. The first bit rate is increased for each iteration, until the second bit rate is less than the first bit rate, and then available bandwidth is estimated based on the second bit rate.Type: ApplicationFiled: July 27, 2005Publication date: February 1, 2007Applicant: Broadcom CorporationInventors: Sean Dunlap, David Pullen
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Publication number: 20070025264Abstract: The present invention provides a method and an apparatus for controlling service quality of data communications in a wireless network in which quality of service control for voice over internet protocol packets is provided on a downlink shared channel. A method is provided for a wireless communications between at least a first and a second service user. The method comprises prioritizing transmission of voice over internet protocol packets for the first and second service users over a shared downlink channel based on a first end-to-end delay that the first service user experiences relative to a second end-to-end delay that the second service user experiences. For example, such a priority adaptation may provide quality of service control for voice over internet protocol over a high-speed downlink packet access channel based on an end-to-end delay that a mobile-to-mobile user may be currently experiencing relative to a mobile-to-land user.Type: ApplicationFiled: July 29, 2005Publication date: February 1, 2007Inventors: Fang-Chen Cheng, James Seymour
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Publication number: 20070025265Abstract: In one embodiment, the present invention is a method and apparatus for wireless network security. In one embodiment, a method for securing a wireless computing network includes receiving a communication from an unidentified transmitter, identifying the transmitter in accordance with a fingerprint generated from one or more radio frequency signal characteristics extracted from the communication, and taking action in response to an identity of the transmitter.Type: ApplicationFiled: July 24, 2006Publication date: February 1, 2007Inventors: Phillip Porras, Michael Corr, Steven Dawson, David Watt, David Manseau, John Marcotullio
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Publication number: 20070025266Abstract: There is provided a powerline network that includes a number of stations including a central coordinator for coordinating transmissions of each of the stations. The central coordinator includes a system clock and a network timer and is configurable to transmit a number of network timer values. Each of the network timer values can be transmitted by the central coordinator in one of a number of beacons. Each of the other stations is configurable to utilize the network timer values and a corresponding number of local timer values to estimate a frequency error between the system clock and a local clock and an offset between the network timer and a local timer. Each of the other stations is further configurable to utilize the frequency error and the offset to synchronize the local timer to the network timer.Type: ApplicationFiled: July 24, 2006Publication date: February 1, 2007Inventors: Neal Riedel, Yiorgos Peponides, James Petranovich, Lawrence Yonge, Srinivas Katar, Deepak Ayyagari, Sherman Gavette, Wai Chan
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Publication number: 20070025267Abstract: In a data communication system capable of variable rate transmission, high rate packet data transmission improves utilization of the forward link and decreases the transmission delay. Data transmission on the forward link is time multiplexed and the base station transmits at the highest data rate supported by the forward link at each time slot to one mobile station. The data rate is determined by the largest C/I measurement of the forward link signals as measured at the mobile station. Upon determination of a data packet received in error, the mobile station transmits a NACK message back to the base station. The NACK message results in retransmission of the data packet received in error. The data packets can be transmitted out of sequence by the use of sequence number to identify each data unit within the data packets.Type: ApplicationFiled: September 29, 2006Publication date: February 1, 2007Inventors: Roberto Padovani, Paul Bender, Peter Black, Matthew Grob, Jurg Hinderling, Nagabhushana Sindhushayana, Charles Wheatley
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Publication number: 20070025268Abstract: In a data communication system capable of variable rate transmission, high rate packet data transmission improves utilization of the forward link and decreases the transmission delay. Data transmission on the forward link is time multiplexed and the base station transmits at the highest data rate supported by the forward link at each time slot to one mobile station. The data rate is determined by the largest C/I measurement of the forward link signals as measured at the mobile station. Upon determination of a data packet received in error, the mobile station transmits a NACK message back to the base station. The NACK message results in retransmission of the data packet received in error. The data packets can be transmitted out of sequence by the use of sequence number to identify each data unit within the data packets.Type: ApplicationFiled: September 29, 2006Publication date: February 1, 2007Inventors: Roberto Padovani, Paul Bender, Peter Black, Matthew Grob, Jurg Hinderling, Nagabhushana Sindhushayana, Charles Wheatley
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Publication number: 20070025269Abstract: In a data communication system capable of variable rate transmission, high rate packet data transmission improves utilization of the forward link and decreases the transmission delay. Data transmission on the forward link is time multiplexed and the base station transmits at the highest data rate supported by the forward link at each time slot to one mobile station. The data rate is determined by the largest C/I measurement of the forward link signals as measured at the mobile station. Upon determination of a data packet received in error, the mobile station transmits a NACK message back to the base station. The NACK message results in retransmission of the data packet received in error. The data packets can be transmitted out of sequence by the use of sequence number to identify each data unit within the data packets.Type: ApplicationFiled: September 29, 2006Publication date: February 1, 2007Inventors: Roberto Padovani, Paul Bender, Peter Black, Matthew Grob, Jurg Hinderling, Nagabhushana Sindhushayana, Charles Wheatley
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Publication number: 20070025270Abstract: The present invention allows originating endpoints to obtain reachability information from a directory service, which collects contact and related information from available users. When initiating a peer-to-peer communication session to an endpoint of a destination user, the originating endpoint will access the directory service to obtain reachability information for the destination user. The reachability information may contain one or more addresses, one of which will be a peer-to-peer communication session address. From the reachability information, the originating terminal will determine an appropriate address to initiate communications with the destination user. The reachability information may identify multiple addresses, where only certain of the addresses may be peer-to-peer communication addresses and other addresses may be used to establish other types of sessions through disparate types of networks.Type: ApplicationFiled: July 26, 2005Publication date: February 1, 2007Applicant: NORTEL NETWORKS LIMITEDInventor: Dany Sylvain
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Publication number: 20070025271Abstract: Data processing devices in a data center are more easily relocated by consolidating the data and power connections to the data processing devices within a mobile data cabinet. The mobile data cabinet includes an access switch to consolidate communications and connections among computing devices in the mobile cabinet and to consolidate communications to a central communication service through a main communication cable. A single data communication connection through the main communication cable and a single electrical power connection through a power delivery cable to the mobile cabinet reduces and simplifies number and difficulty of the disconnections and connections that must be made to move the mobile cabinet.Type: ApplicationFiled: July 28, 2005Publication date: February 1, 2007Inventors: Daniel Niedrich, David Brown, Robert Minowicz
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Publication number: 20070025272Abstract: A method for locating nodes in a multi-hop sensor network forms a rigid body (RB1, RB2, RB3) and, from the nodes, utilizes the rigid body to decide if a node is locatable. The method obtains a reduced order model (ROM) of the network by categorizing all of the nodes by location status, grouping them based upon the categorizations, and defining and identifying a rigid body from a group. To locate the nodes, the nodes are separated from one another into subsets dependent upon characteristics (1100). Then, super groups are formed from one subset (1200) and the sub-groups are formed from each super group (1300). The rigid body core is formed (1400) and the resultant rigid body is determined (1500). The ROM is formed from the rigid body (1600) and a location capability of the rigid body is evaluated based upon the ROM (1700).Type: ApplicationFiled: July 29, 2005Publication date: February 1, 2007Inventors: Feng Niu, Spyros Kyperountas, Qicai Shi
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Publication number: 20070025273Abstract: A list of most recently utilized ports is maintained in memory. The video display system checks each port in the recently utilized ports list to determine if any video sources are connected to the recently utilized ports. If no sources are connected to the recently utilized ports, the video display system sequentially checks the remaining ports not stored in the list.Type: ApplicationFiled: October 14, 2005Publication date: February 1, 2007Inventor: Yau Chung
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Publication number: 20070025274Abstract: A method of hybrid route discovery in a mesh network is described. The method comprises the optional designation of a root node of the mesh network and formatting a route request message at an originating mesh point, where the route request messages include a hop limit parameter. If a root node has been configured, the route request is responded to with a message that describes the route to the root. If a direct route between two nodes is required, the route request message is broadcast from the originating mesh point, and the hop limit parameter limits the number of times the route request message will be forwarded. The originating mesh point receives a unicast route reply message from a neighboring mesh point, after the neighboring mesh point received the route request message. Finally, a route connecting the originating mesh point and the destination mesh point is established.Type: ApplicationFiled: February 27, 2006Publication date: February 1, 2007Inventors: Shahriar Rahman, Robert O'Hara, Johannes Kruys
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Publication number: 20070025275Abstract: A system and method assures the proper and continued operation of intermediate network devices, such as bridges, in a computer network. The bridge includes a spanning tree protocol (STP) engine, which is configured to have a bridge assurance (BA) sub-engine. The STP engine assigns the bridge's ports to one of a Root, Alternate, Designated or Backup Role. The BA sub-engine directs the STP engine to issue configuration messages from all ports to which neighboring bridges are coupled, including ports assigned to the Root and Alternate roles. The BA sub-engine further looks for the receipt of BPDU messages from neighboring bridges and employs one or more timers to determine whether the neighboring bridges are continuing to operate properly.Type: ApplicationFiled: July 15, 2005Publication date: February 1, 2007Inventors: Francois Tallet, Norman Finn
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Publication number: 20070025276Abstract: A mechanism that provides congruent forwarding paths for unicast and multicast data traffic over a service provider core network includes issuing, by a receiver edge node, a request to join a multicast tree structure. A unicast path from the receiver edge node to a source node of the provider network is then established using a special message that contains an identifier. The identifier allows the unicast path through the core network to be aligned with the multicast tree structure. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.Type: ApplicationFiled: December 7, 2005Publication date: February 1, 2007Applicant: Cisco Technology, Inc.Inventors: John Zwiebel, Ali Sajassi, Dino Farinacci, Daniel Alvarez
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Publication number: 20070025277Abstract: A provider edge (PE) node of a network operates to send a trace path message over the network to a receiver PE node, the trace path message recording a list of intermediate nodes of a unicast path from the PE node to the receiver PE node; and receive a join message initiated from the receiver PE node, the join message using the list to propagate to the source PE node through the intermediate nodes such that a branch of a multicast tree is aligned with the unicast path. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).Type: ApplicationFiled: December 7, 2005Publication date: February 1, 2007Applicant: Cisco Technology, Inc.Inventors: Ali Sajassi, Dino Farinacci, John Zwiebel, Daniel Alvarez
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Publication number: 20070025278Abstract: A VoIP device has at least one programmable button to enable the user to initiate a VoIP or SIP call to another device. The button can be programmed by the device user, the device manufacturer, and/or a VoIP service provider. The VoIP device does not have a dial pad, visual numbers display, or other certain standard features on a SIP phone. Thus, the VoIP device allows simplified dedicated communication. Numerous uses are possible, which result in advantages over conventional SIP phones.Type: ApplicationFiled: July 12, 2005Publication date: February 1, 2007Inventor: Matthew McRae
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Publication number: 20070025279Abstract: Provided are an apparatus and method for providing VoIP service based on an IP multimedia subsystem (IMS). When a MS is located indoors, it accesses the IMS through a VoIP gateway. When the MS is located outdoors, it accesses the IMS through an IEEE 802.16 system. Therefore, the VoIP service can be provided over one telephone number allocated to the MS.Type: ApplicationFiled: July 14, 2006Publication date: February 1, 2007Applicant: Samsung Electronics Co., Ltd.Inventors: Hye-Won Baek, Jae-Woo Kwon
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Publication number: 20070025280Abstract: A bidirectional data transmission apparatus includes a shared channel, a client device, and a host device. The host device includes a host link interface for preparing and transmitting a check packet via the shared channel to the client device according to a high-speed communication protocol. The client device includes a client link interface for preparing and transmitting a reply packet via the shared channel to the host device according to a low-speed communication protocol, in response to the check packet.Type: ApplicationFiled: July 7, 2006Publication date: February 1, 2007Inventor: Byoung Kim
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Publication number: 20070025281Abstract: A system processes signals exchanged between a near end terminal and a far end terminal over a communication path. The system selects the processing characteristics of a near end terminal based on characteristics of the communication path. The communication path may include the near and the far end terminal and their respective codecs, and the networks. The system may select processing characteristics of the near end terminal based on characteristics of the communication path. Selecting the processing characteristics may include selecting a predetermined operation. The system may adapt a selected operation based on a real time analysis of the communication path.Type: ApplicationFiled: September 2, 2005Publication date: February 1, 2007Inventors: Sheila McFarland, Phillip Hetherington, Alex Escott
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Publication number: 20070025282Abstract: A path change is detected by multiplying the energy of a signal on the output of a summation circuit in one channel of a telephone by a constant to produce a product. The product is compared with the energy of a signal on the input of the summation circuit. A path change is indicated when the energy of the product exceeds the energy of a signal on the input of the summation circuit. The comparison is made in successive frames of an audio signal and a path change is indicated when the energy of a signal on the input of the summation circuit is exceeded in two or more successive frames.Type: ApplicationFiled: July 12, 2005Publication date: February 1, 2007Applicant: Acoustic Technologies, Inc.Inventors: Seth Suppappola, Franklyn Story
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Publication number: 20070025283Abstract: A satellite communications system comprises a transmitter, a satellite transponder and a receiver. The transmitter transmits an uplink multi-level modulated signal (hierarchical modulation or layered modulation) to the satellite transponder, which broadcasts the multi-level modulated signal downlink to one, or more, receivers. The transmitter includes a repetition coder for repetition coding at least one level, e.g., a lower level, of the multi-level modulated signal. In complementary fashion, the receiver includes a repetition decoder for use in decoding the at least one repetition coded level of the received multi-level modulated signal.Type: ApplicationFiled: April 30, 2004Publication date: February 1, 2007Inventor: Joshua Lawrence Koslov
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Publication number: 20070025284Abstract: Techniques to reduce transmit power required for transmission of messages from an access terminal to reduce interference to transmissions from other access terminals. In one aspect, messages to be transmitted are defined and/or coded such that they may be detected at different received signal qualities. The codewords may be defined having different distances to their nearest codewords. In another aspect, messages to be transmitted are assigned to different points in a signal constellation, with the points being located such that they may be received at different signal qualities. Codewords that may be received at a lower signal quality may be assigned to messages more likely to be transmitted at higher transmit power levels (e.g., when the access terminal is located further away) or to more frequently transmitted messages.Type: ApplicationFiled: October 5, 2006Publication date: February 1, 2007Inventors: Rajesh Pankaj, Stein Lundby, Byron Yafuso
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Publication number: 20070025285Abstract: An access burst and normal burst mix-mode support for GSM/GPRS compliant handsets is provided and may comprise transmitting bursts of different data types within a single GSM frame by a single GSM device, wherein the data types may comprise access burst and normal burst. Transmit power may be ramped up prior to transmitting a first burst in the GSM frame for the single GSM device, and ramped down after transmitting a first burst in the GSM frame for the single GSM device. A plurality of ramp-up and ramp-down values may be stored for use in ramping up or ramping down the transmit power, respectively. The plurality of ramp-up and ramp-down values may be converted to an analog control signal that may be used to control the ramping up and ramping down of the transmit power, respectively.Type: ApplicationFiled: July 28, 2005Publication date: February 1, 2007Inventor: Weidong Li
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Publication number: 20070025286Abstract: Described is a method for receiving, on a first device connected to a network, a communication including information corresponding to a second device which is not connected to the network. The information is stored on the first device and transmitted to an enterprise management system for the network, wherein the information includes an indication that the information corresponds to the second device.Type: ApplicationFiled: July 28, 2005Publication date: February 1, 2007Inventors: Allan Herrod, Vikranth Katpally-Reddy, Tom Conticello, Sudheer Vangati
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Publication number: 20070025287Abstract: Described is a method for determining an existence of a predetermined wireless network coverage condition. A wireless coverage map of a wireless network is generated as a function of a location of at least one access point and a first signal data collected at a plurality of locations within the network. The first signal data includes a first signal strength of a wireless signal communicated between the at least one access point and a wireless device. A second signal data is received. The second signal data includes a second signal strength of a further wireless signal communicated between one of the at least one access point and a further wireless device. The existence of the predetermined wireless network coverage condition is determined as a function of the second signal data and the wireless coverage map.Type: ApplicationFiled: July 28, 2005Publication date: February 1, 2007Inventors: David Goren, Vinh-Phuong Le, Benjamin Bekritsky, Guang Zeng
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Publication number: 20070025288Abstract: A communication method for a CSMA network including a radio terminal and a base station supporting RTS/CTS, includes: the base station transmitting and RTS frame to the radio terminal during a transmission-suspend-period in which the radio terminal suspends transmission to prevent a collision of packets; the radio terminal transmitting an RTR frame to the base station after the transmission-suspend-period has elapsed; and the base station transmitting a date frame to the radio terminal in response to the RTR frame.Type: ApplicationFiled: May 14, 2004Publication date: February 1, 2007Inventors: Yukimasa Nagai, Hiroyoshi Suga
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Publication number: 20070025289Abstract: A method for providing bandwidth fairness in a wireless network includes determining bandwidth requirement for a particular service interval for each of a plurality wireless stations in a network. The method also includes determining an allocated transmission time for each of the plurality of wireless stations based on a minimum physical transmission rate. Additionally the illustrative method includes fragmenting a packet of at least one of the wireless stations if the at least one wireless station transmits at other transmission rates that are less than the minimum physical transmission rate. An apparatus is adapted to effect the illustrative method.Type: ApplicationFiled: July 22, 2004Publication date: February 1, 2007Inventor: Sai Nandagopalan
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Publication number: 20070025290Abstract: Systems and methods for communicating between a wireless station and a base station are provided. A base station can allocate both a TDD channel and an FDD channel pair for communicating with a wireless station. The base station can transmit and receive unicast messages using the time slots of the TDD channel or can transmit multicast messages over all time slots of the TDD channel.Type: ApplicationFiled: July 29, 2005Publication date: February 1, 2007Applicant: NEXTEL COMMUNICATIONS, INC.Inventors: Alireza Afrashteh, Masoud Olfat, Douglas Hyslop, Rajesh Gangadhar
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Publication number: 20070025291Abstract: Systems and methods for enhancing the capacity of base stations are provided. A base station can operate in a time division duplex mode within a first frequency band. When a second frequency band is acquired for the base station's geographic region, a duplexer can be added to the base station. The base station can then operate in a frequency division duplex mode, where the first frequency band is used for base station downlink transmissions and the second frequency band is used for uplink transmissions.Type: ApplicationFiled: July 29, 2005Publication date: February 1, 2007Applicant: NEXTEL COMMUNICATIONS, INC.Inventors: Alireza Afrashteh, Masoud Olfat, Douglas Hyslop, Rajesh Gangadhar
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Publication number: 20070025292Abstract: Embodiments of systems and methods to provide for increased mobility amongst mobile nodes in a wireless network are generally described herein.Type: ApplicationFiled: July 29, 2005Publication date: February 1, 2007Inventors: Tomasz Maksymczuk, Michal Mamczynski
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Publication number: 20070025293Abstract: A fast hand-over method of a mobile device roaming in a wireless LAN environment includes: receiving GPS information; based on the received location information of the mobile device, searching one or more APs; by scanning the searched APs, detecting an AP to reassociate with; and reassociating with the detected AP. According to the method, when roaming in a wireless LAN environment, a mobile device calculates a moving path by using GPS information and then, by scanning only APs belonging to channels allocated to areas related to the moving direction, the mobile device can reduce a hand-over period, and as a result, a QoS guaranteed service can be provided continuously. Also, by using GPS information, the mobile device can selectively switch to an optimum network service in an area to which different network services are applied.Type: ApplicationFiled: January 10, 2006Publication date: February 1, 2007Applicant: Samsung Electronics Co., Ltd.Inventor: Hyong-uk Choi
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Publication number: 20070025294Abstract: A method of performing handover with at least one homogeneous and heterogeneous network is disclosed.Type: ApplicationFiled: July 5, 2006Publication date: February 1, 2007Inventors: Yong-Ho Kim, Jin Lee
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Publication number: 20070025295Abstract: A radio communication terminal (AT) includes a communication section for performing a radio communication with a base station, and a controller. Before performing a handoff from a first base station to another peripheral base station while receiving service information delivered by the first base station, the controller checks a progress of sequence of the service information being received. Then, the controller performs a handoff control depending on the check result. When it is determined that reception of a packet having the sequence number being received is to be completed within a certain time as a result of checking the progress, the controller suspends the handoff until the reception of the packet is completed.Type: ApplicationFiled: May 31, 2006Publication date: February 1, 2007Inventor: Kenji Kono
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Publication number: 20070025296Abstract: In a system and method for handoff using a hybrid network, a wireless local area network (WLAN) terminal determines its own position information through communication with a code division multiple access (CDMA) base station and a global positioning system (GPS) satellite, and a cell mapping server obtains information about a WLAN cell where the WLAN terminal is currently located from the WLAN terminal position information, determines information about a cell to which the terminal is expected to be handed off from the current position of the WLAN terminal, and provides the cell information to the WLAN terminal. This allows handoff to be performed without scanning a destination access point, thereby significantly reducing WLAN handoff time.Type: ApplicationFiled: June 26, 2006Publication date: February 1, 2007Inventors: Jae-Dong Jung, Seong-Joon Jeon
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Publication number: 20070025297Abstract: An apparatus and method for processing a vertical handoff between a WLAN and a broadband wireless communication network are provided. In a method of processing a vertical handoff in a handoff processor having a mapping table in which QoS information for the broadband wireless communication network is mapped to QoS information for the WLAN, QoS information about an STA received from a source network is converted to QoS information suitable for a target network, referring to the mapping table. A message containing the converted QoS information is generated and sent to the target network.Type: ApplicationFiled: July 26, 2006Publication date: February 1, 2007Applicants: Samsung Electronics Co., Ltd., Seoul National University Industry FoundationInventors: Sung-Jin Lee, Jung-Je Son, Pan-Yuh Joo, Jun-Young Jung, Chong-Kwon Kim, Jiwoong Jeong
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Publication number: 20070025298Abstract: A method and system for a roaming service in a mobile communication system are provided. The system includes an access terminal for transmitting an NAI (network access identifier) to a packet data serving node of the visited network and an AAA (authentication authorization accounting) of the home network, for transmitting subscriber profile information of the access terminal to the visited network. The packet data serving node of the visited network determines whether or not the access terminal subscribes to the roaming service on the basis of the NAI, and, when it is determined that the access terminal subscribes to the roaming service, sends a request for transmitting the subscriber profile information of the access terminal to the AAA of the home network. The packet data serving node of the visited network also provides at least one data service that the home network has provided to the subscriber, using the subscriber profile information.Type: ApplicationFiled: July 31, 2006Publication date: February 1, 2007Inventor: Je-Hyun Jung
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Publication number: 20070025299Abstract: The receiver includes a Rake receiver for separating a received signal into multipath components, an interference selector for selecting interference symbols corresponding to interfering paths and subchannels, a synthesizer for synthesizing an interference signal from selected paths and estimated subchannel symbols, and a canceller for constructing a projection operator or a scale-invariant subtraction operator to cancel selected interference in multipath components of the received signal, or from the received signal itself. The interference canceller may use a sequence of symbol estimates to simultaneously cancel inter-channel interference and inter-symbol interference. Interference cancellers may be placed at one or more locations within the receiver chain.Type: ApplicationFiled: July 29, 2005Publication date: February 1, 2007Inventors: Louis Scharf, Vijay Nagarajan
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Publication number: 20070025300Abstract: A method and apparatus for controlling enhanced dedicated channel (E-DCH) transmissions are disclosed. An enhanced uplink medium access control (MAC-e/es) entity processes a received scheduling grant to calculate a serving grant. The MAC-e/es entity determines whether both a hybrid automatic repeat request (H-ARQ) process for scheduled data and scheduled data are available. If an H-ARQ process for scheduled data and scheduled data are available, the MAC-e/es entity determines whether a serving grant exists. The MAC-e/es entity calculates a remaining power based on maximum allowed power and restricts an E-DCH transport format combination (E-TFC) based on the remaining power. The MAC-e/es entity selects an E-TFC using the serving grant and generates a MAC-e protocol data unit. The MAC-e/es entity may process the received scheduled grant is at each transmission time interval or may store the received scheduled grant in a grant list until there is E-DCH data to transmit.Type: ApplicationFiled: May 31, 2006Publication date: February 1, 2007Applicant: InterDigital Technology CorporationInventors: Stephen Terry, Guodong Zhang, Jung-Lin Pan, Peter Wang
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Publication number: 20070025301Abstract: A system and method has been disclosed for controlling the transmission flow rate of data bits in a data bit transfer session from a serving entity to a client, the session involving bit transfer over a wireless communications link, the method comprising: setting up the session, included establishing the addressing, by providing a radio control node to establish flow rate parameters relating to the wireless link, monitoring the wireless communication link; based on monitoring, sending new flow rate parameters so that the serving entity can update the transmission rate of the session in accordance with the new rate control parameters.Type: ApplicationFiled: November 18, 2003Publication date: February 1, 2007Inventors: Justus Petersson, Magnus Westerlund, Alessio Terzani, Svetlana Chemiakina, Robert Skog
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Publication number: 20070025302Abstract: A wireless Local Area Network (LAN 11) capable of providing “enterprise guest” hosting includes at least one an e-open wireless LAN access point (15) that provides access to both guests and local users. Upon receipt of a request for access, the access point forwards the request to an authentication proxy. The authentication proxy then authenticates the party requesting access in accordance with that party's status (that is, whether the party is a local user or guest). Upon successful authentication, the network routes the traffic from a local user differently as compared to that for a guest. For example traffic from guests goes to gateway for receipt in an external network such as the Internet, whereas traffic from the local user goes to a local network, e.g., a corporate intranet. In this way, the Wireless LAN 11, after ascertaining the status of the party requesting access, can limit guest traffic according to the guest access policy.Type: ApplicationFiled: March 8, 2004Publication date: February 1, 2007Inventors: Junbiao Zhang, Kumar Ramaswamy
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Publication number: 20070025303Abstract: A method and system for creating, updating, and displaying content on a plurality of paper and electronic signs is disclosed. A server receives and transmits content information that is associated with particular merchandise for the signs. The server transmits data for new signs and updates old signs automatically, either by directly changing the electronic display device, or by printing a new paper sign to a corresponding printer or CPU.Type: ApplicationFiled: June 24, 2005Publication date: February 1, 2007Inventors: Johannes Koomen, Michael Wang
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Publication number: 20070025304Abstract: At least one transmission condition associated with making a transmission of pre-cache data over a transmission leg (112 or 114) of a network is obtained. A priority for transmitting the pre-cache data is determined using the transmission condition.Type: ApplicationFiled: July 26, 2005Publication date: February 1, 2007Inventors: Rangsan Leelahakriengkrai, John Harris, Ivan Vukovic, Fan Wang
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Publication number: 20070025305Abstract: Methods and apparatus for initiating the release of an IP address allocated for use by a Mobile Node supporting Mobile IP are disclosed. The IP address may be a collocated care-of address or a dynamically assigned home address. The release of the IP address may be initiated by the Home Agent based upon information it has received in a registration request or, alternatively, may be initiated by the Home Agent in response to a de-registration request. In this manner, a Home Agent may initiate the release of an IP address that is no longer in use by a Mobile Node.Type: ApplicationFiled: July 29, 2005Publication date: February 1, 2007Inventors: Mark Denny, Yu-Cheng Shao
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Publication number: 20070025306Abstract: In a wireless LAN (WLAN) a method and system for dynamically assigning a configuration identity to a device being connected to the WLAN is provided. An access point (AP) or other device is plugged into a switch port of an Ethernet switch, and discovers its location and the location of a WLAN management module. The device can then request its configuration identity from the WLAN management module by providing its switch and/or port location. When a device in the WLAN needs to be replaced, the method and system enable dynamic assignment of configuration identity for the new device, to ensure that the configuration and identity of the new device matches that of the device it is replacing.Type: ApplicationFiled: August 1, 2005Publication date: February 1, 2007Applicant: Cisco Technology, Inc.Inventors: Brian Cox, Bruce McMurdo, Anuradha Gade
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Publication number: 20070025307Abstract: A data acquisition network includes an assembly of nodes including at least one wireless network of nodes in which two neighboring nodes transmit data between each other by radio waves. The assembly of nodes also includes at least one other network of nodes in which two neighboring nodes transmit data between each other by a cable. The data is also conveyed by radio waves. The at least one other network forms a cabled network of nodes.Type: ApplicationFiled: November 1, 2005Publication date: February 1, 2007Inventors: Jean-Paul Menard, Daniel Pennec, Dominique Deniau, Jean-Luc Dronet