Abstract: A method and apparatus is disclosed for preventing loops on a network topology which includes virtual switches and virtual machines. For example, a virtualization management application may prevent loops from being introduced into a network topology where a virtual machine forwards traffic between any two (or more) virtual network interface cards (vNICs). A method to prevent loops may include receiving a request to create a virtual network interface (vNIC) for a virtual machine (VM) instance on a computing system, and in response to determining that the requested vNIC is to be connected to the same network segment as an existing vNIC of the VM instance, failing the request to generate the requested vNIC.

Abstract: A method for energy efficient configuration of a physical port of a plurality of physical ports of a network device is described herein. One or more physical ports of the plurality of physical ports may be aggregated to a logical port in a logical communication channel between the network device and another device. A configuration of the one or more physical ports is determined. The configuration includes one or more parameters which are monitored. The physical port of the plurality of physical ports is selected and a configuration state of the selected physical port is modified upon detection of an event based on the one or more parameters. The modified configuration state is one of an active port state, an active port state with a limited bandwidth utilization rate, and a standby port state. The selected port is reconfigured according to the modified configuration state.

Abstract: The present invention discloses a method for realizing source routing in a blocking cross network. Link state advertisement information diffused in the network carries cross constraint characteristic information, and a call initiating node checks a path tree and gets a service path according to the cross constraint characteristic information included in the link state advertisement information in the network; the cross constraint characteristic information includes physical transmission link layer constraint information of a link in a node, which is called link switching constraint information, and constraint information of each wavelength channel in the link, which is called wavelength constraint characteristic information. The present invention also discloses an apparatus for realizing source routing in a blocking cross network.

Abstract: A wireless telecommunications network configuration is audited and repaired. Configuration data is received, representing a current configuration of network elements within the network. The current configuration indicates how network elements are configured within the network or routing and handling communications within the network. Fault and performance data is received representing a current level service quality of the network. The current configuration data is compared to a signature configuration of the network, the signature configuration representing how network elements should be configured within the network such that communications are routed and handled for at least one of optimal performance, disaster recovery, and operation continuity. A determination is made, based on the comparison and the collected fault and performance data, whether repairs are needed to the current configuration of the network.

Abstract: A network upgrade tool identifies at least one new digital subscriber line (DSL) path pre-provisionable elements associated with the at least one new DSL path. The tool provisions the identified pre-provisionable elements prior to transition from at least one existing DSL path to the at least one new DSL path; receives a notification that physical network changes associated with a target digital subscriber line access multiplexer (DSLAM) have been made; and provisions non-pre-provisioned elements following receipt of the notification.

Abstract: Methods and devices for network modeling, service provisioning, and service management are disclosed. A network modeling method includes accessing information describing a set of nodes of a communications network, physical links physically connecting the nodes, and logical links logically connecting the nodes using the physical links. The method further includes, based on the information, creating a different connection group object for each of the physical links and for each of the logical links. Each connection group object includes a connection representing the link, a first endpoint representing a first node of the set connected to the link; and a second endpoint representing a second node of the set connected to the link.

Abstract: A system and method for causing concurrent setup of a wireless network adapter and a network host device. The method involves receiving a request to install either a wireless network adapter or a network host device. If the request is to install the wireless network adapter, then the method further involves detecting that the network host device is not yet installed, and prompting a user to connect to the network host device. Alternatively, if the request is to install the network host device, then the method further involves detecting that the wireless network adapter is not yet installed, and prompting the user to connect to the wireless network adapter. The method also involves causing a connection to be established between the wireless network adapter and the network host device.

Abstract: On a network formed by multiple nodes, a shortest path is generated between an ingress node and an egress node. When a packet is transmitted from the ingress to the egress node, in addition to the packet being transmitted from the port to the shortest path, the packet is flooded from the other ports excluding the port to the shortest path, whereby nodes that are among the nodes forming the network and not on the shortest path automatically generate according to a conventional first-in, first-learned scheme, a path that is shortest in the network excluding the shortest path, i.e., a redundant path that shares no links or nodes with the shortest path. Therefore, the operator can automatically generate a redundant path by merely specifying the ingress node and the egress node.

Abstract: A route allocation method including: calculating a route between a sending node and a receiving node in a network; and allocating the route to a communication slot, wherein the allocating selects route allocation for the communication slot based on a number of allocatable routes that are other routes not including a link the transfer direction of which is the same as that of a route, the link being located in the route embedded into the communication slot.

Abstract: The present invention includes a system and method by which a network of directional, wireless nodes that are not fixed in space can be optimized by optimizing each node individually. The network does not have a central control node, so each node is responsible for optimizing its surrounding topology. This is accomplished by synthesizing incoming information from neighboring nodes and determining which nodes will provide the best connections based on specific utilities each node is attempting to optimize. Neighboring nodes then exchange messages to request, accept, or reject directional connections between them based on their preferred optimizations. The overall directional network topology is achieved by consensus driven by local preferences.

Abstract: Embodiments of the present invention a method and a node for finding the shortest path to a cache node in a content delivery network (CDN) comprising requested content and a method for creating a virtual representation of a network. According to an embodiment of the present invention, the virtual representation is in the form of a virtual, hierarchical topology, and the cache nodes correspond to the cache nodes of the real network. All cache nodes are arranged at a first level and with the virtual nodes arranged at higher levels. In the virtual representation, all nodes (cache and virtual) are connected with virtual links such that there exist only one path between any two arbitrary cache nodes. Further, costs to the virtual links are assigned such that the path cost between any two arbitrary cache nodes in the virtual representation generally corresponds to the lowest path cost between corresponding cache nodes in the real network.

Abstract: A system, method, and instruction set for translational routing and redirecting of media calls for use in teleconferencing applications. In operation, when a user places a conference call, it is routed through a carrier switch 14 to a media gateway 16 where routing translation on the call occurs and then a VoIP call is sent to an element management system 18 by way of an internet protocol network 22. The EMS 18 then accesses a central database 20 with an account number and retrieves a dialed number identification service 21 needed to redirect the call. The EMS then sends a REFER command indicating the new DNIS information to the MGW 16 by way the IP network 22. Finally, the MGW 16 performs the appropriate routing translation on the new DNIS and redirects the call through a time division multiplexing network 24 to the appropriate conferencing bridge 26,28.

Abstract: A system, method, and device for use in videoconferencing. The method typically includes installing a videoconferencing services switch at an access point to an IP network, and registering a plurality of subscribers for videoconferencing services. Each subscriber typically has a plurality of endpoints. The method further includes receiving subscriber-specific settings to be applied to multiple videoconferencing calls from the plurality of endpoints associated with each subscriber. The method further includes storing the subscriber-specific settings at a location accessible to the switch, and configuring the switch to connect calls from the plurality of endpoints at each subscriber based on the corresponding subscriber-specific settings.

Abstract: A method and arrangement for connecting an ad-hoc communication network (101) to a permanent communication network (102), e.g. to a cellular mobile communication network. The ad-hoc communication network is established between communication devices (103-106) and a gateway device (107) using a routing protocol that is run in the gateway device and in the communication devices. A protocol address that is associated in a communication device with a protocol data unit is determined on the basis of a control action given by a user of the communication device. In a gateway device, the protocol data unit is relayed to the permanent communication network if the protocol data unit is provided with a pre-determined protocol address. The user of the communication device can determine with the aid of the control action whether he is communicating only inside the ad-hoc communication network or via the permanent communication network.

Abstract: A method of relaying data in a wireless communication system is provided. The method comprises: receiving data, transmitted over a first subframe from a base station, over a second subframe; and relaying the data to a user equipment over a third subframe which is placed after one or more subframes from the second subframe, wherein at least any one of the first and the second subframes is a non-detection subframe to which the user equipment does not attempt data detection. According to the present invention, the wireless communication system enables efficient data transmission between a base station and a relay station as compared to conventional subframe-configurated systems. Furthermore, the wireless communication system enables data transmission with improved wireless resource allocation efficiency.

Abstract: The invention provides a method, apparatus and computer program product for ensuring that a device (26) operable in a network (1) is configured to operate according to documented functional requirements for the network. Positional information comprising the coordinates of each device (26, 9, 50) in the network (1) is received via a gateway (9, 50) at a data processing apparatus (10) storing the documented functional requirements. The coordinates of each device (26, 9) in the network (1) are used to deduce the required functionality of the device based on the stored functional requirements, instructions for implementing the functionality are generated and the instructions are sent via the gateway (9, 50) to the network. The invention has particular relevance in the commissioning stage of a lighting control network.

Abstract: Provided is a method of controlling power of a downlink channel in a wireless communication system, the method including: transmitting at least one data to a user equipment; receiving feedback information for the data from the user equipment; and controlling downlink transmission power using the feedback information. It is possible to control the power without time delay and additional use of radio resources in a VoIP service which is responsible for satisfying a fixed transmission rate in real time. Moreover, it is possible to control the power without waste of control channels to perform PDCCH link adaptation.

Abstract: An apparatus and a method for changing a Multicast and Broadcast Service (MBS) channel of a terminal in a broadband wireless communication system are provided. In the method, an overall channel scheduling information message comprising group information for Connection Identifications (CIDs) of all channels in service is received from a base station. Transmission information of an MBS channel scheduling information message corresponding to a group to which a CID of a current channel belongs is extracted from the overall channel scheduling information message. A relevant MBS channel scheduling information message is received from the base station using the extracted transmission information of the MBS channel scheduling information message. Transmission information of an MBS MAP message for a relevant CID is extracted from the MBS channel scheduling information message. Therefore, an MBS channel change of a terminal can be easily performed.

Abstract: A wireless communication apparatus (100) includes a broadcast/multicast reception determination unit (120) for determining whether data distributed by broadcast/multicast is being received or not; a wireless session close process unit (140) for performing a wireless session close process when a wireless session close timer is expired; and a control unit (150) for controlling the wireless session close process unit to hold the wireless session close process activated based on expiration of the wireless session close timer until reception of data distributed by broadcast/multicast is completed, in case that it is determined that data distributed by the broadcast/multicast is being received when the wireless session close timer is expired.

Abstract: A method for obtaining the MBMS supporting ability of a cell is disclosed. The method concludes: step 1 in which RNC transmits an audit request message to Node B; step 2, the Node B returns an audit response message containing the MBMS supporting ability information of the cell to the RNC. With the present invention, the RNC can obtain the MBMS supporting ability information of the cell, and obtain the MBMS supporting ability changing information of the cell in real time and correctly.

Abstract: An apparatus is disclosed having a receiver configured to receive a request to transmit data from a wireless node in a plurality of wireless nodes; and a transmitter configured to transmit a multi-cast message to a set of wireless nodes in the plurality of wireless nodes to permit data transmission. A method for wireless communications is also disclosed.

Abstract: Femto nodes provide Local IP Access (LIPA) which allows terminals to communicate with local area networks that the femtocells reside in using cellular air-interfaces (such as cdma2000, UMTS or LTE). Femto nodes also enable Remote IP Access (RIPA) service, which allows the terminals to access the local area network from the Internet as if they were present in the local area networks. Further, to avoid degradation of standby time of the terminals or the capacity of the femto node, or both, apparatus and methods are described herein in which a femto node consolidates received Broadcast/Multicast IP packets from a local area network prior to delivering the packets to terminals over a cellular air-interface. In other aspects, a femto node may deliver the received Broadcast/Multicast IP packets via a cellular one-to-many transmission, either with or without consolidation.

Abstract: The present invention relates to a method for signaling a plurality of transmission parameters for a plurality of communications between a primary station and a plurality of respective secondary stations in a multi-user MIMO mode, comprising the steps of (a) signaling the value of at least one first transmission parameter in a multicast message to at least two secondary stations, the value of the first transmission parameter being common to the respective communications corresponding to the at least two secondary stations, and (b) signaling the value of at least one second transmission parameter in a plurality of unicast messages to each secondary stations of the plurality of secondary stations.

Abstract: An MBS feedback method is disclosed. The MBS feedback method includes detecting one or more codes multiplexed in Code Division Multiplexing (CDM) from an MBS feedback channel, and adjusting a Modulation and Coding Scheme (MCS) based on the detected one or more codes.

Abstract: Disclosed is a communication method of a satellite mobile communication system. The communication method of a satellite mobile communication system, includes: receiving system information indicating frame intervals in which first user equipments using a satellite radio interface in commonality with a terrestrial radio interface do not perform communications from a base station; accessing the base station in the rest frame intervals other than frame intervals in which the first user equipments do not perform communications, based on the system information; transmitting the system information from the base station to second user equipments using a satellite radio interface optimized for satellite environment; and accessing the base station in the rest frame intervals based on the system information received in the second user equipments.

Abstract: In the field of wireless communications technologies, a method, a device and a system for transmitting a push message are provided, which solve the technical problem that a push message may not be transmitted in an appropriate Point To Multipoint (PTM) bearer mode in the prior art. The method includes: determining at least one mode in PTM bearer modes for a received push message; adapting respectively, for the push message, a transmission bearer type corresponding to the at least one mode; and transmitting the adapted push message to a terminal through a PTM bearer network corresponding to the transmission bearer type.

Abstract: An SAE/LTE or 4G cellular telecommunications network is disclosed which comprises a plurality of eNodeBs and a network core. A plurality of mobile telecommunications devices are registered with the network and communicate with the network core via the eNodeBs. A relay is provided between the eNodeB 5 and the mobile telecommunications device to extend the radio coverage provided by the eNodeB. Channel quality measurement data are transmitted to at least one of the telecommunications devices in a link with the relay to enable the telecommunications devices to calculate the channel quality between the mobile device and the relay and/or the node.

Abstract: The invention provides a mechanism for automatically setting reverse link gain or power for a repeater (120) used in a communication system (100) through the use of the reverse link power control of a built-in wireless communications device. By embedding a wireless communication device (430, 630, 700) inside the repeater and injecting reverse link signals of the embedded device into the reverse link of the repeater (124A, 124B), the gain of the repeater is maintained relatively constant. The embedded WCD can also be activated on a periodic basis to make calls and utilize reverse link power-control to calibrate or re-calibrate the gain of the repeater, making it a power-controlled repeater.

Abstract: A method of performing a hybrid automatic repeat request (HARQ) of a relay station in a backhaul link of a multi-carrier system is provided. The method includes: receiving backhaul downlink data through at least one carrier between a first carrier and a second carrier; transmitting acknowledgement/not-acknowledgement (ACK/NACK) for the backhaul downlink data through an uplink component carrier; and receiving new backhaul downlink data or retransmitted backhaul downlink data in accordance with the transmitted ACK/NACK through at least one carrier between the first carrier and the second carrier, wherein the first carrier is a component carrier dedicated to the backhaul downlink between a base station and the relay station, and the second carrier is a component carrier used in both the backhaul downlink and an access downlink between the relay station and a relay user equipment at different times.

Abstract: Embodiments of the present invention provide a method and system for data transmission. The method for data transmission includes: sending, according to a mapping relationship between a first H-RNTI of a user equipment and a second H-RNTI of a relay node accessed by the user equipment, data to the user equipment corresponding to the first H-RNTI by using the relay node corresponding to the second H-RNTI. By using the technical solutions of the embodiments, the coverage capability of a cell edge is enhanced, and the efficiency in transmitting data to a UE at the cell edge is further improved.

Abstract: A satellite communication network includes one or more satellites and multiple ground stations, or ground stations. An originating ground station receives an Internet communication, determines when a satellite will be within range, and transmits a stream of data packets including part or all of the communication to the satellite when in communication range. The satellite either forwards the data packets to another satellite, or determines when a destination ground station will be in sight and transmits the data packets to the destination ground station when in range.

Abstract: A method (100) for limiting transmission power of a communication device (600) having a plurality of transceivers (610, 615). The method can include determining a desired maximum transmission power and determining a plurality of power contribution factors. Each of the power contribution factors can be associated with a respective one of the transceivers. The method also can include determining an expected transmission power based on, at least in part, a sum of the power contribution factors. Further, responsive to the expected transmission power exceeding the desired maximum transmission power, the power contribution for at least one of the transceivers can be selectively reduced or terminated.

Abstract: A method (100) for limiting transmission power of a communication device (600) having a plurality of transceivers (610, 615). The method can include determining a desired maximum transmission power and determining a plurality of power contribution factors. Each of the power contribution factors can be associated with a respective one of the transceivers. The method also can include determining an expected transmission power based on, at least in part, a sum of the power contribution factors. Further, responsive to the expected transmission power exceeding the desired maximum transmission power, the power contribution for at least one of the transceivers can be selectively reduced or terminated.

Abstract: The present invention relates to a router, computer program products and a method in a Universal Mobile Telecommunication System (UMTS). The router resides in an Internet Protocol (IP) based UMTS Terrestrial Radio Access Network (UTRAN) Transport Network. The UTRAN transport network carries Dedicated Channel (DCH) frames on DCHs between a RNC and at least one Node B, wherein the router comprises means for splitting one DCH traffic flow into at least two DCH traffic flows by using an IP multicast protocol.

Abstract: A user equipment, for use in a wireless communication system, includes a unit operable to measure a received signal quality in a receiver, a unit operable to report the measuring received signal quality to the transmitter, or a unit operable to report a selected modulation and coding scheme to the transmitter.

Abstract: A method of generating network identifiers for use by mobile routers of a moving network is provided which enables fast and efficient routing loop avoidance and detection. The method comprises receiving at a mobile router of a sub-network chain, a beacon from a preceding mobile router in the chain, the beacon containing a network identifier of the preceding mobile router, generating a new network identifier by applying a pre-defined function to the received network identifier, and including the new network identifier in beacons broadcast by the receiving mobile router. When preparing for a handover, a mobile router compares the network identifier contained in a received beacon with values generated by applying said function against its own network identifier. This allows the mobile router to identify beacons originating from mobile routers that are downstream in the same chain.

Abstract: A router is operatively coupled to a plurality of local computers and has one or more connections to a remote computer network for managing one or more data routes between the local computers and the remote computer network. In providing dynamic access to the remote computer network by any of the local computers, one or more of the connection(s) of the router to the remote computer network includes one or more wireless connections independent of the router between the local computers and the remote computer network.

Abstract: A wireless sensor network including a plurality of Smart Sensors coupled to a wide area network such as the Internet via a Wireless Sensor Coordinator. Each wireless sensor network comprises a plurality of Smart Sensors, each operable to measure one or more physical quantities. Each wireless sensor communicates the measured data to a Wireless Sensor Coordinator which then stores the collected data in memory. The Wireless Sensor Coordinator further includes a web server operable to post a web site on a network that is accessible by a common web browser. Upon receiving a request for sensed data via the web site, the Wireless Sensor Coordinator retrieves the appropriate measured and stored data and converts it into HTML format pages which are then posted on the web site for review by the requestor.

Abstract: Systems and methods for establishing a telecommunications bridge between a user device and a node are provided herein. In some embodiments a method for establishing a telecommunications bridge between a user device and a node includes receiving a request to establish a telecommunications bridge, the request including information indicative of a user device, and a campaign identifier corresponding to at least one node, comparing the campaign identifier to a campaign database, the campaign database including information indicative of campaign identifiers associated with at least one node, and establishing the telecommunications bridge between a user device and at least one node.

Abstract: A data processing unit selects either one of a base station mode and a terminal mode so as to perform communications using packet signals. The base station mode is a mode in which a packet signal, containing data indicating that an initial source and a final destination are not its own radio apparatus, is to be communicated; the terminal mode is a mode in which a packet signal, containing data indicating that the initial source or the final destination is its own radio apparatus, is to be communicated. A control unit starts the radio apparatus by setting the data processing unit in the terminal mode. When a packet signal, which has been transmitted from another radio apparatus and which contains broadcast information, has not been received before a certain period of time elapses after the start, the control unit switches the mode of the data processing unit to the base station mode.

Abstract: A preamble sequence according to the disclosed systems and methods of setting a preamble sequence for multilevel frequency modulations is comprised of four sections: an initiation sequence, based on a repeatable unique word; a start of frame delimiter, which consists of the negation of the unique word; a continuous wave signal with a certain duration and frequency added after the start of frame delimiter; and an additional sequence for further training of the receiver, also based on repetitions of the unique word and/or its negations.

Abstract: Network architecture configured for open communication between a plurality of sub-networks. Each of the plurality of sub-networks has a different routable network addressing scheme. The architecture includes at least one broker node adapted to communicate using at least two different routable network addressing schemes. The broker node comprises an identification management module configured to collect peer-application addresses for nodes currently accessing a specific application, the peer-application addresses being associated with a specific application, an address resolution module configured to map each of the peer-application addresses to a sub-network specific routable network address and a network coordination module configured to monitor and coordinate sub-network communication capabilities between the broker node and at least one other broker node and elect a primary broker node for each sub-network which the broker node and at least one other broker node is capable of communication.

Abstract: In a radio system where wireless nodes are in contact, the wireless nodes are enabled to exchange information with adjacent nodes. In addition, in one embodiment distant nodes out of range for direct communication can be communicated with by forwarding data over multiple hops. When a user, in particular a primary user, is detected by a node, a spectrum access blocking message is sent, to other nodes in the vicinity of the node thereby enabling blocking of the radio resource in a geographical area in which the other usage is detected. This means that the radio resource is blocked in that area from being accessed by other users than the primary user. The blocking message can be distributed in any suitable manner and can be tailored for the application at hand.

Abstract: A mobile communication system for supporting a Multimedia Broadcast/Multicast Service (MBMS) is provided. More particularly, an apparatus and a method for applying a direct tunnel feature in order to reduce a transmission delay of a mobile communication system for providing an MBMS. The system includes a Gateway GPRS Support Node (GGSN). The GGSN omits transmission of data to a Serving GPRS Support Node (SGSN) and transmits data to a Radio Network Controller (RNC) using the direct tunnel feature when transmitting data.

Abstract: A method and apparatus for performing Inter-User Equipment Transfer (IUT) across any internet protocol (IP) based network. This framework allows for preparation, execution and completion of data transfer at a target device through registration with a Local Mobility Anchor (LMA) and receipt of an IUT request. The target device receives and stores an IP address or a source device. The IP address is used to transmit session information.

Abstract: The present invention discloses a method and a system for implementing single radio voice call continuity (SRVCC), and said method includes: an ALG sending number information and/or identifier information if the ALG to a SCAS via a signaling message; said SCAS judging whether the number information and/or identifier information of the ALG are identical with the last used REFER number information or not, and if not, said SCAS notifying a PS or CS network control entity of the number information and/or identifier information of the ALG; alternatively, said SCAS notifying the PS or CS network control entity of the number and/or identifier information of the ALG. The present invention implements to dynamically select the ALG as a REFER operation entity to implement SRVCC, and solves the problem that a REFER request cannot be sent to an appropriate ALG since this ALG cannot be dynamically determined.

Abstract: A method and system is provided for transmitting data frames from a first device to a second device in a wireless network. The method includes concatenating a plurality of data frames (303) into an aggregated frame (100) by the first device; transmitting the aggregated frame (100) from the first device to the second device; validating each of the plurality of data frames (303) individually by the second device; and retransmitting each of the data frames (303) that contains an error by the first device, without retransmitting the data frames that are valid.

Abstract: Techniques to support beamforming for stations in a wireless network are described. A station may support beamforming with implicit or explicit feedback by having capabilities to transmit and receive sounding frames, responding to training request by sending a sounding frame, and responding to request for explicit feedback. In one explicit beamforming embodiment, the station may send a first frame with an explicit feedback request and may also send a Null Data Packet (NDP) having at least one training field but no data field. The station may receive a second frame with explicit feedback, which may be derived based on the NDP. The station may derive steering information based on explicit feedback and may then send a steered frame with beamforming based on steering information. Other aspects, embodiments, and features are also claimed and described.

Abstract: A method and apparatus for dynamic acknowledgement repetition for a downlink medium access control packet data unit transmission ‘MAC PDU’ requiring multiple acknowledgements, the method having the steps of: receiving the downlink MAC PDU requiring multiple acknowledgements; and utilizing a differentiating factor and acknowledgement scheme, sending the multiple acknowledgements.

Abstract: The present invention discloses an information feedback method. The method comprises steps of a serving cell and/or a user equipment determining a cooperating cell set participating multi-antenna-multi-cell cooperation, the cooperating cell set including the serving cell and non-serving cells, the user equipment and/or the serving cell selecting transmit-ports of the serving cell and non-serving cells according to the determined cooperating cell set, the user equipment obtaining channel state information of the selected transmit-ports, and the user equipment feeding back identification information and the channel state information of the selected transmit-ports. The present invention provides also a serving cell, a cooperative cell and a user equipment for feeding back the identification information and channel state information of the selected transmit-ports. The present invention has advantages of simple implementation and less signaling overhead.