Patents Examined by Ricardo Castaneyra
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Patent number: 9692715Abstract: In an embodiment an interface unit includes a transmit pipeline configured to transmit egress data, and a receive pipeline configured to receive ingress data. At least one of the transmit pipeline and the receive pipeline being may be configured to provide shared resources to a plurality of ports. The shared resources may include at least one of a data path resource and a control logic resource.Type: GrantFiled: February 21, 2014Date of Patent: June 27, 2017Assignee: Cavium, Inc.Inventors: Shahe H. Krakirian, Paul G. Scrobohaci, Daniel A. Katz
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Patent number: 9693389Abstract: Provided is a gateway apparatus including a first communication unit that communicates with a base station in a first communication method, a second communication unit that communicates with a communication apparatus in a second communication method, an identification information holding unit that holds a correspondence between first identification information in the first communication method and second identification information in the second communication method of the communication apparatus, and a category information holding unit to share category information showing a characteristic of the communication apparatus with the communication apparatus. The first communication unit performs communication of the communication apparatus in accordance with the category information with the base station by using the first identification information of the communication apparatus.Type: GrantFiled: August 17, 2011Date of Patent: June 27, 2017Assignee: SONY CORPORATIONInventor: Hiroaki Takano
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Patent number: 9680604Abstract: Methods and apparatus are provided for searching for a peripheral device and transmitting device information in a device-to-device service. First information is transmitted using a first tone in a first region of a search duration. A second tone is determined by transposing a subcarrier index and a symbol index of the first tone. The first information is transmitted through the second tone in a second region of the search duration. First information of a peripheral device is received in the first and the second region of the search duration. The second information is transmitted through a resource region corresponding to the first tone in a third region of the search duration. Second information of the peripheral device is received in the third region of the search duration. Device information of the peripheral device is determined by combining the first and second information of the peripheral device.Type: GrantFiled: August 13, 2012Date of Patent: June 13, 2017Assignee: Samsung Electronics Co., LtdInventors: Chi-Woo Lim, Kyung-Kyu Kim, Seung-Hoon Park, Nam-Yoon Lee
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Patent number: 9621483Abstract: An EtherCAT packet forwarding system with distributed clocking is provided. The system comprises a master device and a plurality of slaves. The master comprises a processing port and a forward port for being respectively coupled to the at least two Ethernet ports of the master device in a redundant ring topology. The slaves comprise an internal clock indicating a current time, and a slave memory comprising a processing timestamp variable, a forwarding timestamp variable, a temporary timestamp variable and a copy-direct bit.Type: GrantFiled: July 2, 2012Date of Patent: April 11, 2017Assignee: NXP USA, INC.Inventors: Hezi Rahamim, Amir Yosha
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Patent number: 9584428Abstract: An apparatus for increasing scheduling efficiency in network devices may include (1) at least one memory device that stores at least one data chunk included in a packet, (2) a scheduler device that (a) schedules transmission of the packet that includes the data chunk and (b) issues a request to transmit the packet based at least in part on the scheduled transmission, and (3) a packet-delivery device that (a) receives the request to transmit the packet from the scheduler device, (b) prepares the packet for transmission at a faster rate than the scheduler device schedules the transmission of the packet, and then (c) facilitates transmitting the data chunk included in the packet to a computing device. Various other apparatuses, systems, and methods are also disclosed.Type: GrantFiled: January 3, 2014Date of Patent: February 28, 2017Assignee: Juniper Networks, Inc.Inventors: Craig R. Frink, Steven Aiken, Gerald Lampert, Thomas J. Meyer, Srihari R. Vegesna, Ajit Jain
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Patent number: 9572099Abstract: The embodiments herein relates to a method in a first network node for handling operation mode of a base station in a communications network. The communications network comprises a transport network. The first network node activates a Remote Unit-Main Unit, RU-MU, operation mode in the base station when data traffic load in the transport network is below a first threshold. The first network node activates a regular operation mode in the base station when the data traffic load in the transport network is above a second threshold.Type: GrantFiled: July 4, 2012Date of Patent: February 14, 2017Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Lars Westberg, Johan Rune, Erik Friman, Ralf Bergqvist
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Patent number: 9559932Abstract: The processor obtains a process time, which is a time taken for processing a control message when the control device requests that a target processing device, selected from among the plurality of processing devices, process a control message. When the process time has become longer than a first threshold, the processor determines which of a first and a second congestion has occurred based on whether the process time has become longer than a second threshold, which is greater than the first threshold. The first congestion occurs in the transfer devices used for a communication between the control device and the target processing device. The second congestion occurs in the target processing device. The network connection device transmits a request message requesting that a transfer route for which it has been determined that the control message is not processed in a device in which the congestion has occurred be set.Type: GrantFiled: March 23, 2015Date of Patent: January 31, 2017Assignee: FUJITSU LIMITEDInventors: Toshio Soumiya, Akiko Yamada, Sho Shimizu
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Patent number: 9503171Abstract: Disclosed is a method for transmitting radio frequency signals. In the method according to the present invention, a plurality of antenna groups may be arranged for achieving array gain and multiplexing gain at the same time, and the plurality of antenna groups are located far from each other so that they have no correlation, and antennas of the same group are located adjacent to each other so that they have correlation. Accordingly, system capacity as well as capacity of data channel and control channel may be significantly increased through mitigation of inter-cell interference and enhancement of cell edge performance.Type: GrantFiled: January 3, 2014Date of Patent: November 22, 2016Assignee: Electronics and Telecommunications Research InstituteInventors: Choong Il Yeh, Jae Young Ahn
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Patent number: 9503915Abstract: A method includes steering client devices to access points that potentially increase capacity of communications using beamformed transmissions. In particular, this includes determining the best access points for beamforming to a particular client or a group of clients in the network for an improved throughput performance in the deployment or a subset of access points.Type: GrantFiled: April 5, 2013Date of Patent: November 22, 2016Assignee: Aruba Networks, Inc.Inventors: Kalyan Dharanipragada, Gautam D. Bhanage, Venkatesh Kannan, Sachin Ganu, Scott McGrath
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Patent number: 9503483Abstract: According to the present invention there is provided a method of facilitating a communication session between a user terminal and an Application Function over an IP Connectivity Access Network in which a mobile IP-based mobility protocol is used. The method comprises, if it is determined that the Quality of Service rules for the communication session cannot be installed or enforced due to a limitation on the resources available in the Access Network, reporting this to the Application Function together with information on the available resources.Type: GrantFiled: February 16, 2010Date of Patent: November 22, 2016Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Pablo Martinez De La Cruz, Miguel Angel Monjas Llorente
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Patent number: 9491684Abstract: A method for multi-hop forwarding of data packets in vehicular ad-hoc networks is disclosed. Each node knows both its own and the destination's geographical coordinates. The coordinates of the one-hop neighbors are obtained from periodically broadcast Cooperative-Awareness Messages (CAMs). The method comprises the following distributed coordination scheme, executed by each node upon receiving a packet: i) computing the set of candidate forwarders; ii) ranking the candidate forwarders according to an utility metric; iii) forwarding the packet after a period of time proportional to its rank if top-ranked, dropping the packet otherwise. The base utility metric used for ranking forwarders is the inverse of the distance to the destination. Moreover, an extension is disclosed where this metric is replaced by the inverse of the expected number of packet transmissions to reach the destination. The latter metric is calculated based on spatial connectivity information cooperatively collected by nodes in the network.Type: GrantFiled: September 30, 2013Date of Patent: November 8, 2016Assignees: Universidade Do Porto, Carnegie Mellon UniversityInventors: João Francisco Cordeiro De Oliveira Barros, Rui Manuel Pacheco Meireles, Peter Alfons Roland Steenkiste
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Patent number: 9385886Abstract: The embodiments of the present invention disclose a method for processing a packet and a related device. One implementation consists of a method for processing a packet that comprises receiving, by a first network device, a forwarded packet, performing a flow table matching for the forwarded packet, and if unmatched, encapsulating the forwarded packet with an inner encapsulation and an outer encapsulation, and transmitting the forwarded packet to a second network device. The method further comprises receiving a flow table packet returned by the second network device, wherein the flow table packet carries flow table information of the forwarded packet and is encapsulated with a special layer 2 frame header, and processing the flow table packet according to an operation indicated by an Ethernet type value in the special layer 2 frame header.Type: GrantFiled: January 3, 2014Date of Patent: July 5, 2016Assignee: Huawei Technologies Co., Ltd.Inventor: Chengyong Lin
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Patent number: 9374304Abstract: A route-tracing application can measure the performance of a path in a named-data network using trace agents deployed across various network nodes. During operation, a network node can process a route-tracing Interest by performing a lookup operation in a forwarding information base (FIB) using the Interest's name, in which a respective FIB entry may map the name to a forwarding rule. If the FIB does not include an entry for the Interest's route-tracing name, a trace agent at the network node determines one or more outbound interfaces for the route-tracing operation based on the Interest's name, and creates new route-tracing FIB entries that each maps the Interest's name to a forwarding rule for the determined interfaces. The network node returns a Content Object that satisfies the Interest, in which the Content Object includes the names of the new FIB entries, as well as performance information for the path.Type: GrantFiled: January 24, 2014Date of Patent: June 21, 2016Assignee: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: Ignacio Solis, Glenn C. Scott, Michael F. Plass, Ian B. Crabtree
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Patent number: 9363047Abstract: A technique for encoding downlink Hybrid Automatic Repeat Request, HARQ, feedback information in a mobile station supporting aggregated component carriers is provided. A method implementation of this technique comprises the steps of obtaining (302) first HARQ feed-back indicators providing information regarding receipt of Physical Downlink Control Channels, PDCCH, for activated component carriers, obtaining (304) second HARQ feedback indicators providing information regarding decoding of Physical Downlink Shared Channels, PDSCH, codewords carried by the component carriers, encoding (306) the first HARQ feedback indicators into a first coded part, and encoding (308) the first HARQ feedback indicators into a second coded part, wherein the first and the second HARQ feedback indicators are encoded separate from each other.Type: GrantFiled: June 2, 2010Date of Patent: June 7, 2016Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Jung-Fu Cheng, Robert Baldemair, Dirk Gerstenberger, Daniel Larsson
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Patent number: 9351215Abstract: A communication terminal for receiving a communication service from a network that is configured to provide communication services to terminals via a plurality of communication devices, the terminal being configured to receive a communication service from a communication device, receive, from that communication device, a request that it handover from that communication service to another provided by the network and decide, responsive to that request, whether or not to handover from that communication service to another provided by the network.Type: GrantFiled: June 12, 2012Date of Patent: May 24, 2016Assignee: Neul Ltd.Inventor: William Webb
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Patent number: 9325612Abstract: Embodiments of the present disclosure include methods and apparatus for providing virtual channelization of un-channelized media. A parent circuit is configured to expect dynamic IPoE CLIPS clients. Traffic having a source address is received from an access point. A circuit lookup is performed based on the source address. Upon a determination from the circuit lookup that a circuit corresponding to the traffic from the source address does not exist, the parent circuit determines whether the source address of the traffic falls within a predefined range of addresses and notifies a control plane of the parent circuit that a new IP address has been detected for dynamic IPoE CLIPS.Type: GrantFiled: April 5, 2013Date of Patent: April 26, 2016Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Chandra Shekhar, Joel L. Wittenberg, Sunny Wang
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Patent number: 9319253Abstract: Various methods and systems are provided for edge windowing of orthogonal frequency division multiplexing (OFDM) systems. In one example, among others, a method includes obtaining an edge windowing portion by reducing a cyclic prefix size for a quantity of edge subcarriers in an OFDM symbol and reducing side lobes by applying a windowing function to the edge subcarriers. In another example, a device includes a separator capable of dividing subcarriers of an OFDM symbol into first and second subcarrier groups, a first CP adder capable of obtaining a windowing portion by adjusting a cyclic prefix size of the first subcarrier group, and a first windower capable of reducing side lobes by applying a windowing function to the first subcarrier group. In another example, a method includes determining a RMS delay spread of a mobile station and scheduling a subcarrier based at least in part upon the RMS delay spread.Type: GrantFiled: November 19, 2012Date of Patent: April 19, 2016Assignee: UNIVERSITY OF SOUTH FLORIDA (A FLORIDA NON-PROFIT CORPORATION)Inventors: Alphan Sahin, Huseyin Arslan
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Patent number: 9270592Abstract: Network device and method for routing a packet and setting up a new flow. The device includes a packet classifier, a field-selection table, a hash module, and a routing table. A packet is routed by finding an entry in the field-selection table using the packet classifier, selecting bits from the packet based on the entry in the field-selection table, and hashing the selected bits along with an identifier from the packet classifier or the field-selection table, using the hash module. The hash result is used to locate instructions in the routing table. When setting up a new flow, the hash module result may point to an existing entry in the routing table. In such instances, a new entry is added to the packet classifier, such that the hash module will produce a different result that points to an available entry in the routing table.Type: GrantFiled: January 24, 2014Date of Patent: February 23, 2016Assignee: Google Inc.Inventor: Richard Lee Sites
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Patent number: 9225605Abstract: Embodiments generally provide techniques for mapping service modules on a network device. Embodiments identify a plurality of service modules, each configured to perform a respective service. A first one of the plurality of service modules is mapped to a first one of a plurality of virtual switches on the network device. Service policy information for a plurality of virtual switches is retrieved. The service policy information is indicative of service requirements for each of the plurality of virtual switches. Upon detecting an occurrence of a predefined event, embodiments determine a second one of the plurality of virtual switches to map the first service module to, based on the service policy information. The first service module is then mapped to the second virtual switch.Type: GrantFiled: November 19, 2012Date of Patent: December 29, 2015Assignee: Cisco Technology, Inc.Inventors: Rajasekhar Manam, Venkata Naga Ramesh Ponnapalli, Sridar Kandaswamy
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Patent number: 9204343Abstract: The present invention relates to a method for context handling when a user equipment (10), UE, with established bearers towards a Gateway GPRS Support Node (11), GGSN, and a Packet Data Network GGSN (12), PGW-GGSN, moves from a previous Access Network, AN, to a present AN. The previous AN communicates with the GGSN (11) and the PGW-GGSN (12) via a previous Mobility Control Node (13), MCN. The present AN communicates with the PGW-GGSN (12) via a present MCN (14). The method comprises a step where the UE (10) detects (15) that it has entered a Mobility Area, MA, belonging to the present AN and requests for a Mobility Area Update, MAU, at the present MCN (14). The method is particularly characterized in the steps of: —The present MCN (14) derives (16) the previous MCN (13) from the MAU request and initiates a handshake procedure including exchange of capabilities with the previous MCN (13).Type: GrantFiled: February 15, 2010Date of Patent: December 1, 2015Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Lasse Olsson, Peter Ramle