Abstract: A method and apparatus for warning a telephony user of a service degradation in a network such as a packet network are disclosed. For example, the present method enables a terminal adaptor to discover a service degradation by performing a connectivity test (e.g., checking for dial tone, pinging the network service provider, etc). The method then enables the terminal adaptor to warn the customer of the detected service degradation via an attached endpoint, e.g., a telephone.

Abstract: Embodiments of the present invention disclose a method of domain supervision in a label switched network, including designating one or more OAM domains on an LSP in the label switched network, determining an ingress node and an egress node of each OAM domain inserting in-domain OAM frames containing supervision information at the ingress node of each OAM domain, receiving and parsing the in-domain OAM frames by the egress node of each OAM domain, and managing an OAM domain according to the supervision information contained in an in-domain OAM frame of the OAM domain. Furthermore, embodiments of the present invention also disclose a method of domain protection in a label switched network through adding a detection frame, such as Connectivity Verification (CV) frame, Fast Failure Detection (FFD) frame or the like, into an in-domain OAM frame.

Abstract: A method for transmitting a Connectivity Fault Management (CFM) message of Ethernet includes: receiving a CFM message transmitted from a source node, the CFM message including identifier of a path and a connection maintenance target address; determining whether the connection maintenance target address matches address of a receiving node, and if yes, terminating the CFM message; otherwise forwarding the CFM message to a next hop based upon the path identifier of the path. Another method and a system for transmitting a CFM message of Ethernet, a node for transmitting a CFM message of Ethernet, and a node for receiving a CFM message of Ethernet are also disclosed. With the invention, a CFM message may be forwarded according to information of MAC address and VLAN ID of identifier of a path where a monitored service is located, and thus may be forwarded correctly in a PBB-TE network.

Abstract: There is disclosed methods, a computing device, a storage medium, and an apparatus for testing a network. Received packets may have two or more packet group identification fields. The packet group identification fields may be combined to generate a packet group number. The packet group number may be generated by first masking unused bits of the packet group identification fields and then concatenating the unmasked bits. Test statistics may be measured, accumulated, and stored for one or more packet groups comprising packets having the same packet group number.

Abstract: This document describes tools that communicate an operational state of a transport service. The transport service provides connectivity between two or more networks, enabling the networks to exchange packets. The tools detect an operational state of a transport service. After doing so, the tools may convey the operational state of the transport service to at least one of the networks through a user-to-network interface port of a network interface device, send a message to a network interface device requesting that the network interface device convey the operational state to a network connected to the network interface device, or configure a network interface device to communicate the operational state.

Abstract: Systems and methodologies are described that facilitate detecting and/or identifying peers in a local area peer-to-peer network. Times (e.g., peer discovery intervals) for performance of mutual detection and identification between peers may be synchronized (e.g., based upon a signal broadcast to the peers), Further, within each partitioned peer discovery interval, a wireless terminal may select a portion of time to transmit (e.g., broadcast) short messages that may be employed by peers to detect and/identify the wireless terminal. Moreover, the remainder of the time within the partitioned peer discovery interval may be employed to listen to short messages received from peers.

Abstract: The invention relates to a method and a device for adapting label-switched paths, in particular MPLS paths, in packet-oriented networks which comprise routers. At least some of the routers exchange information with adjacent routers, by means of a protocol, about the status of the network, in particular about load shifts, availability changes and bandwidths, in order to recognise possible bottlenecks or improvements and, in the case of adjacent bottlenecks, locally altering paths which run through said bottlenecks, by means of partial replacement paths such that said bottlenecks are by-passed and in the case of adjacent improvements, the paths which run around said improvements are altered such as to retain said improvements in the path.

Abstract: A multimedia software bridge which enables enterprise-class voice, Web, and video teleconferencing. The multimedia software bridge is an all-software, distributed media server architecture that efficiently routes, bridges, and manages integrated voice, data, and video streams across multiple sites in real-time. The multimedia software bridge includes media services, session control, content distribution, and any-device access layer.

Abstract: A method of allocating, revoking and transferring resources from a pool of conference resources provided by a conference system comprises assigning a guaranteed status to at least some participants to a conference to be hosted by the system. At least some of the resources may be reserved for the guaranteed status participants, to enable the guaranteed status participants to participate in the conference. When another participant to the conference is received, the other participant may be assigned a provisional status. Unused resources in the pool of resources may be allocated as provisional resources to the provisional status participant and the participant is admitted to participate in the conference utilizing the provisional resources. The provisional resources may be reserved for, but are at the time not used by a guaranteed status participant. Borrowed resources may be reclaimed and transferred to the guaranteed status participant.

Abstract: The present invention is directed to a system, including apparatus and architecture, and method for providing scheduled and ad hoc voice over IP conference services having enhanced quality and reliability. The system uses an overlay network of geographically distributed conference servers working simultaneously and collaboratively to host a given conference session. Multiple conference servers simultaneously and collaboratively perform the necessary audio mixing. The voice routing path is established and controlled within the overlay network and supports conference services across different conference service providers.

Abstract: A system and method is provided to allow users in a remote location, such as a construction site, to both send and receive telephone calls, radio transmissions, and data without directly connecting to the plain old telephone system (POTS). The wireless telephone and data system is a rugged, portable, integrated system comprising an external gateway, WiFi network host, and Internet protocol-enabled telephone unit. When connected to an AC power source in the remote location, the system connects a variety of wireless devices to telephone, radio phone, cellular, and Internet access to facilitate communication of telephone calls, radio calls, and data transfer both internally and with the outside world.

Abstract: A method of dynamic channel selection for a wireless communication network employs a first wireless communication channel of a first wireless radio of each of a network coordinator and a number of network devices for wireless communication therebetween. A number of different second wireless communication channels are monitored with a second wireless radio of the network coordinator. One of the different second wireless communication channels is selected as a function of background noise level or message traffic. The first wireless communication channel is monitored with the first wireless radio of the network coordinator. The first wireless communication channel is determined to have unsatisfactory quality and an identification of the selected one of the different second wireless communication channels is responsively broadcast to the network devices.

Abstract: Using bearer channels for wireless nodes includes initiating communication among the wireless nodes that include a node and one or more neighbor nodes. An adaptive channel operable to communicate messages between the node and the neighbor nodes is established. One or more bearer channels are selected. The one or more neighbor nodes are notified of the one or more selected bearer channels using the adaptive channel. The node and the neighbor nodes communicate over the bearer channels.

Abstract: A wireless network infrastructure that adapts encoding approach and frame parameters of concurrent interfering transmission and receptions in response to dynamically varying channel conditions. The channel conditions are determined by number of associated wireless end point devices within a cell, their capabilities, anticipated bandwidth usage, QOS (Quality Of Service) demands, priority of service and idle states, cell overlap interferences, near-far interferences, and noises. The wireless network infrastructure consists of an access point that is adapted to receive and transmit concurrent interfering transmissions utilizing a plurality of encoding approach and frame parameters. In addition, the wireless network infrastructure consists of a plurality of end point devices that are adapted to transmit and receive using concurrent interfering transmissions with one or more of the plurality of encoding approach and frame parameters.

Abstract: A method of processing secondary management data packets, and a scheduler to perform the method, including processing each of the secondary management data packets through one or more queues in the scheduler used to process a user service flow in an Institute of Electrical and Electronics Engineers 802.16 system.

Abstract: A system and method of removing items from a transmission scheduler queue includes assigning a latency count to each item indicating latency, i.e. time the item has remained in the system before being transmitted, adding a number of frames that have elapsed since a previous scheduler run to the latency count at each scheduler run to obtain a current latency count, comparing the current latency count to a removal period, which may be predetermined once or recalculated in each scheduler run, and removing the item if the comparison indicates that the current latency count exceeds the removal period before the item has been output from the queue.

Abstract: Devices, systems, and methods of improving protocol performance are disclosed. One method includes transmitting a block of frames to another communication device, and upon completion of the transmitting, requesting an acknowledgement of the transmitted block from the another communication device. The method further includes receiving the acknowledgement and adjusting the number of frames in the block based on information from the received acknowledgement.

Abstract: Embodiments of a wireless device and methods for reducing period scans using motion diction are generally described herein. Other embodiments may be described and claimed. In some embodiments, a wireless device determines whether or not to refrain from performing periodic scanning based on one or more motion indicators determined from measured signal levels received from a currently associated access point. In some embodiments, a wireless device determines whether or not to refrain from performing periodic scanning based on a rate-of-change of received signal strength indicators (RSSIs) of beacon frames received from a currently associated access point.

Abstract: A method and apparatus is provided for power conservation in a node operating in a multihop network. The method includes determining whether a broadcast frame in a beacon interval intended for the node has been previously received by the node and remaining awake for reception of the broadcast frame in the beacon interval if the broadcast frame intended for the node has not been previously received by the node.

Abstract: An apparatus and method for controlling data communication in a wireless local area network (LAN) can check a remaining power level of a host computer battery and determine a data transmission characteristic such as a data transfer speed and/or power save mode period based on the checked battery power, and then adjust the current data transfer speed or power save mode period according to the determined value. For example, a controller of a wireless LAN can transmit information corresponding to the determined transmission characteristic to an access point or another station. Therefore, a station of the wireless LAN card can reduce or prevent power of the battery from being abruptly diminished because of use of the wireless LAN.

Abstract: A system and method is provided for enabling operation of a native Internet Protocol (IP) multicast application in a mobile station having a wireless interface that does not support native IP multicast messages. The mobile station includes a link layer interface that is configured to communicate with various base stations using a wireless broadband data protocol. Each mobile station also includes a proxy module that operates as a middleware layer above the link layer interface. The proxy module is configured to intercept multicast messages being passed to and from the link layer interface, and convert any multicast messages from a native IP multicast protocol, to an Application Program Interface (API) call specific to the link layer interface, or vice versa.

Abstract: A method and apparatus is described which provides reliable multicasting in a WLAN. The use of at least two distinct MAC multicast addresses are used to separate the first multicast frame transmissions from subsequent multicast frame re-transmissions. Thereby enabling legacy devices to ignore duplicate retransmitted multicast frames, because the duplicate frames are sent using a multicast address they do not listen to. Thus, the legacy devices are not confused with duplicated frames. In addition, new devices benefit from the retransmissions sent on the second multicast address and can re-order the frames before delivering to the applications or upper layers; thereby improving the QoS for the multicast.

Abstract: Systems and methodologies are described that facilitate coordinating and conducting transmissions to multiple stations in a wireless communication system during a single transmission opportunity. A holder of a transmission opportunity can communicate a request-to-send message or a self-addressed clear-to-send message to one or more stations to establish the transmission opportunity. Subsequently, data transmissions with respective stations can be initiated by transmitting request-to-send messages to the respective stations. At each receiving station, the source address of a received request-to-send message is compared to the address of the holder of the transmission opportunity. If the addresses match for a given request-to-send message, the receiving station transmits a clear-to-send message to the holder of the transmission opportunity in response to the request-to-send message.

Abstract: In order to prevent from being incapable of receiving Multimedia Broadcast Multicast Service, called MBMS hereinafter, service when a user equipment (UE) has a connection for signaling only, the present invention provides a method of selecting an MBMS operating frequency for the UE in a wireless communications system. The method includes determining a radio bearer state of the UE, and switching a current operating frequency of the UE to a preferred frequency corresponding to an MBMS service prioritized by upper layers when the radio bearer state of the UE is in signaling transmission state.

Abstract: In a method of sharing a Radio Access Network, RAN, in one or more areas by at least two operators the determination whether to grant admission or not of a User Equipment, UE, to the RAN is performed in an admission control algorithm. A Radio Network Controller, RNC, is reading Network Resource Identifier, NRI, information contained in an “Initial Direct Transfer” message sent by the UE when requesting a service, and the read NRI information is used in a service admission control to check a plurality of service admission parameters as a part of a set of admission control parameters to grant or reject the requested service depending on whether the operator associated with the NRI has invested in needed technology or not. A corresponding radio access network comprises admission control means to determine whether to grant admission of a User Equipment, UE, to the network, RAN, or not.

Abstract: A method for a local device to establish an ad hoc communications channel with a broadcast device is disclosed. The method comprises upon determining that the ad hoc communications link with the broadcast device is required, accessing memory to obtain connection parameters for the broadcast device; and establishing a communications link with the broadcast device by sending a connection request to the broadcast device based on the connection parameters.

Abstract: An apparatus and methods are disclosed that enable a non-multi-hop wireless terminal (i.e., a wireless terminal that has not been programmed to participate in multi-hop ad-hoc wireless networks) to in fact participate in a multi-hop ad-hoc wireless network, without any changes to the non-multi-hop terminal's software or hardware. In the illustrative embodiment, a wireless terminal T that already belongs to a multi-hop ad-hoc wireless network is assigned to a non-multi-hop wireless terminal W, and a signal is transmitted to terminal W that induces terminal W to use terminal T as a relay for transmitting messages. The assignment of multi-hop-capable terminals in the network to non-multi-hop terminals can be based on a variety of factors, such as signal strengths and the geo-locations of terminals.

Abstract: Disclosed is a method for transmitting a signal in a communication system supporting multiple communication service modes. The base station includes at least one preamble generator for generating a preamble to which a sequence and a cell IDentifier (ID) of the base station are allocated, the sequence being one-to-one mapped to one communication service mode supportable by the base station. By the method, in mobile communication systems after the 3G communication system, it is possible to support multiple communication service modes optimized for multiple communication environments in a single communication system and to provide each mobile station with an optimum communication service mode for a specific communication environment of the mobile station.

Abstract: A message format for use in one or more multihop flow reservation messages in a multihop wireless network includes a reservation originator identification; a reservation terminator identification; a sequence control; and optionally a flow originator identification. A multihop flow reservation comprises forwarding a traffic stream request including the message format and forwarding a traffic stream reply including the message format along a multihop route. After the traffic stream reservation is completed, a data is forwarded along the multihop route.

Abstract: A wireless network infrastructure that adapts between single and concurrent interfering transmissions and receptions based on dynamically varying channel conditions. The channel conditions variations are typically determined by the number of associated wireless end point devices within the cell, their capabilities, anticipated bandwidth usage, QOS (Quality Of Service) demands, priority of service, idle states, cell overlap interferences, near-far interferences, and noises. The wireless network infrastructure supports a plurality of end point devices and contains an access point. The access point defines at least one first portion of a frame wherein transmissions and receptions are limited to single transmissions and receptions, and at least one second portion of the frame wherein concurrent interfering transmissions and receptions are permitted.

Abstract: A system and method for synchronous spectrum sharing for use in a wireless communication system based on orthogonal frequency-division multiplexing (OFDM) or orthogonal frequency division multiple access (OFDMA) signaling is disclosed. The system includes a frame detector configured to detect a frame of a broadcast waveform and extract sub-carrier information from a subframe or Secondary User Map (SU MAP). SU MAP includes information on usable sub-carrier and pilot sub-carriers for secondary users. The system allows transmitting data from the secondary user node in unused sub-carriers thereby making efficient use of unused or idle spectrum. Accordingly, secondary users of wireless communication systems can dynamically form ad-hoc mesh network communications in fixed or mobile scenarios.

Abstract: Communicating between a plurality of nodes includes scanning a set of frequencies to determine spectrum awareness data for one or more frequencies; determining a maximum transmit power for one or more of the frequencies based at least in part on the spectrum awareness data for the frequencies; determining one or more channels, each channel occupying at least a portion of the set of frequencies; and selecting one or more of the one or more channels as a bearer.

Abstract: There is provided a system and method for sharing a wireless spectrum compromising a first transceiver for establishing the communication channels within the allocated bandwidth using a first protocol, a broker for determining the unused bandwidth within the allocated bandwidth, and a second transceiver for establishing the further communication channels within the unused allocated bandwidth using a second protocol. The first protocol is UMTS and the second protocol is WiMax. The broker may monitor UMTS traffic and allocate bandwidth to WiMax traffic whenever resources are idle or traffic are low or allocate bandwidth in dependence upon time division multiplexing, or frequency division multiplexing or may overlap a WiMax signal with a UMTS signal.

Abstract: The disclosure relates to fast roaming techniques which can reduce L3 handoff delay when a mobile access point and/or a mobile host roams back to a previously visited subnet. These fast roaming techniques can allow the mobile access point and/or the mobile host to skip a lengthy DHCP exchange when loading an IP address thereby reducing L3 handoff delays.

Abstract: A mesh access point that includes an access point profile storing one ore more parameters in non-volatile memory, and a method of using the mesh access point having the access point profile to select and carry out mutual authentication on a wireless mesh network to establish itself to the mesh network using information in the access point profile, and further to provide services to wireless clients according to information in the access point profile. Access point profiles can be pre-configured/configured/updated suitably in order to adapt the mesh access point in a mesh network according to its capabilities and requirements.

Abstract: A method and apparatus for performing a handover in high frequency wireless communications are provided. A device for performing a handover in a wireless network, includes a priority order list including a priority order for becoming a coordinator, a handover controller making a handover request to a selected device existing on the network based on the priority order, and a transceiver transmitting network information of the device performing the handover according to the handover request.

Abstract: A technique for managing a packet to be transmitted to a Mobile Station (MS) that performs Relay Station (RS) handover in a multi-hop relay Broadband Wireless Access (BWA) system is provided. In the BWA system, a Base Station (BS) includes a controller for determining whether to perform activecasting on an MS upon receiving an activecast request message; a scheduler for allocating a resource by taking into consideration a channel condition between the MS and a serving RS when activecasting is determined to be performed; and a transmitter for multicasting a packet, which is to be transmitted to the MS, to a target RS and the serving RS by using the allocated resource.

Abstract: A radio communication terminal, being used in a radio communication systems in which the transmission rate varies depending on radio wave conditions and communication statuses of other users, comprises a reception module which receives packets transmitted by a base station in an idle state of the radio communication terminal, a signal processing module which estimates a transmission rate available in communication based on the packets received by the reception module, and a display module which displays information indicating the transmission rate estimated by the signal processing module.

Abstract: In order to prevent from inappropriately terminating a current Multimedia Broadcast Multicast Service, called MBMS hereinafter, service reception when a radio resource control (RRC) state of a user equipment (UE) is operated in a CELL_DCH state, the present invention provides a method of selecting an MBMS operating frequency for the UE in a wireless communications system. The method includes determining whether a current operating frequency of the UE is equal to a preferred frequency corresponding to the MBMS services prioritized by the upper layers when the RRC state of the UE is operated in the CELL_DCH state, and continuing using the current operating frequency when the current operating frequency of the UE is equal to the preferred frequency corresponding to the MBMS services prioritized by the upper layers.

Abstract: Provided are a bandwidth-allocation method and apparatus for a wireless network based on a time division transmission mechanism, and a method and apparatus for transmitting and receiving data on the wireless network. The data transmission method includes at least one wireless device belonging to the wireless network transmitting a frame to a network coordinator, the frame including a transmission mode of data and used to request a time slot, receiving a beacon frame containing information about the transmission mode and a time slot duration from the network coordinator, and transmitting the data in the transmission mode to other wireless devices belonging to the wireless network during the duration of the time slot, wherein the transmission mode indicates whether the data is transmitted by a wide-band signal or a narrow-band signal.

Abstract: Provided are a bandwidth-allocation method and apparatus for a wireless network based on a time division transmission mechanism, and a method and apparatus for transmitting and receiving data on the wireless network. The data transmission method includes at least one wireless device belonging to the wireless network transmitting a frame to a network coordinator, the frame including a transmission mode of data and used to request a time slot, receiving a beacon frame containing information about the transmission mode and a time slot duration from the network coordinator, and transmitting the data in the transmission mode to other wireless devices belonging to the wireless network during the duration of the time slot, wherein the transmission mode indicates whether the data is transmitted by a wide-band signal or a narrow-band signal.

Abstract: Provided are a bandwidth-allocation method and apparatus for a wireless network based on a time division transmission mechanism, and a method and apparatus for transmitting and receiving data on the wireless network. The data transmission method includes at least one wireless device belonging to the wireless network transmitting a frame to a network coordinator, the frame including a transmission mode of data and used to request a time slot, receiving a beacon frame containing information about the transmission mode and a time slot duration from the network coordinator, and transmitting the data in the transmission mode to other wireless devices belonging to the wireless network during the duration of the time slot, wherein the transmission mode indicates whether the data is transmitted by a wide-band signal or a narrow-band signal.

Abstract: A hybrid TDMA-CSMA MAC protocol is provided for allocating time slots within a frame having a structure in which transmission time is divided into a first number of actual TDMA time slots and a second number of “virtual” CSMA time slots. Each of the nodes in a multi-hop network can transmit a Highest Slot Number (HSN) field. Each time one of the Hello messages is received from a neighbor node, a given node can calculate variables based on the HSN field. The given node can use these variables to calculate a ratio of the first number to the second number. This ratio can be dynamically adjusted depending upon the traffic conditions observed by nodes within the multi-hop ad hoc network at any particular time to thereby change the relative percentages of the frame which are allocated for a TDMA portion and a CSMA portion of the frame.

Abstract: In one embodiment, a method includes receive a connection event message including information identifying a wireless node, wherein the identifying information comprises a wireless node identifier and an area code associated with the wireless node; determine, based on the area code, whether the wireless node is connected to its home wireless network region; add the identifying information to a location services table; and if the wireless node is not connected to its home network region, transmit a remote connection event message to a home area code authority server corresponding to the wireless node.

Abstract: A method for communication includes establishing communications over a wireless local area network (WLAN) between one or more access points and a group of mobile stations in a first basic service set (BSS) using a first BSS identifier (BSSID). Upon detecting initiation of a communication session of a predetermined type involving a mobile station in the group, the mobile station is assigned to a second BSS having a second BSSID. The communication session continues by transmitting and receiving signals between an access point in the WLAN and the assigned mobile station using the second BSSID.

Abstract: Systems and methods for intercepting and redirecting requests are provided. More particularly, certain information is identified in a packet and the packet is redirected to a specified server. The information that is redirected may be bound for a server in a network that a mobile node is currently visiting, and it is advantageous to fulfill the request in another network instead. The request is redirected to the other network; however, the response to the request may be modified changing the source address and other information so that the response appears to have originated from the server in the visited network to which the mobile node sent the request. Load balancing may also be incorporated when redirecting requests from one or more mobile nodes.

Abstract: A wireless network infrastructure that adapts frame parameters of concurrent interfering receptions in response to the dynamically varying channel conditions. The channel conditions are determined by number of associated wireless end point devices within a cell, their capabilities, anticipated bandwidth usage, QOS (Quality Of Service) demands, priority of service and idle states, cell overlap interferences, near-far interferences and noises. The wireless network infrastructure contains a wireless access point within the cell that assigns a mode to a frame or sub-frame and adapts to channel conditions by varying mode durations and payload lengths. The modes include single transmission mode, plurality of partial concurrent interfering transmission modes and full concurrent interfering transmission mode. These modes allow single as well as concurrent interfering transmissions and receptions of varying payload lengths.

Abstract: A network information acquisition apparatus is provided for acquiring network information related to a wireless network. The apparatus being located in a wireless network coverage area, which can receive network information related to a wireless network, from a base station of a wireless network, an access point, and another terminal which has already received network information and is located a short distance away, thereby minimizing a power consumption amount required for receiving network information.

Abstract: An RF addressable sensor network includes one or more RF addressable sensors; one or more wireless sensor readers coupled to a communications network; and one or more end user devices coupled to the communications network. The one or more wireless sensor readers communicate with the one or more RF addressable sensors to obtain sensor data for transmission over the communications network. A wireless sensor reader includes at least one antenna configured for communication with the one or more RF addressable sensors, a controller, a network communications module coupled to the controller, the network communications module having an interface for coupling to a communications network, a logic module coupled to the controller, and a user interface. The logic module includes a sensor communications module for receiving sensor data from the one or more RF addressable sensors.

Abstract: A method of forming ad hoc RSI hierarchical communication networks among pluralities of wireless transceivers includes assigning to each of the transceivers one or more common designations. A network organization routine of the transceivers operates to establish hierarchical networks based on the transceivers' common designations, resulting in a logical network organization that provides efficiencies for acquiring information from particular transceivers that share a common designation. Each transceiver's common designation is used by a digital processor of the transceiver to selectively receive data packets that are intended for receipt by transceivers sharing the particular common designation. Such a “common designation” network reduces power consumption and signal interference thereby increasing battery life.