Abstract: Provided is an operational status testing apparatus and method for an Ethernet-based APS process. A test command signal which contains a command to perform an operational test for the APS process of a first node and a second test response signal that indicates that the operation of the APS process of a second node is performed normally, from among far end request signals that are received from the second node connected to own first node via an Ethernet network, are filtered.

Abstract: There is disclosed a reconfigurable network test system. The reconfigurable test system may include a plurality of test modules, a plurality of network interface units, a plurality of bypass units, and a multi-port switch. Each of the network interface units may have a first end and a second end adapted to be connected to a network. Each bypass unit may be in communication with an associated test module, the first end of an associated network interface unit, a first associated switch port, and a second associated switch port. Each bypass unit may have a first mode wherein the associated test module is placed in communication with the first end of the associated network interface unit, and a second mode wherein the associated test module is placed in communication with the first associated switch port and the associated network interface unit is placed in communication with the second associated switch.

Abstract: A broadband test line-access unit, including a first test terminal, a second test terminal, a third test terminal, a signal splitter, a first switch, a second switch, a third switch, a first interface terminal, a second interface terminal and a third interface terminal. A broadband test line-access board, including at least two broadband test line-access units, a set of internal test buses, a fourth switch, a fifth switch and a sixth switch, the set of internal test buses including an internal inner-test bus, an internal outer-test bus and an internal auxiliary-test bus. A broadband test device, including at least one broadband test line-access boards, an eighth switch, a ninth switch, a test control module. The broadband test device is of simple structure and low cost, facilitates a port level N+1 backup function within a board, and thus can provide improved communication reliability.

Abstract: There is provided a terminal apparatus capable of, when the volume of packets received by the terminal apparatus is abnormally increased, disconnecting the terminal apparatus from a network and continuously performing a process other than a process regarding received packets by the steps of detecting the number of packets received from the network in a predetermined time, logically disconnecting the terminal apparatus from the network when the number of packets exceeds a predetermined value, and reconnecting the terminal apparatus to the network after a predetermined time has elapsed.

Abstract: A method of channel estimation for a signal having a first portion transmitted using a transmit delay diversity scheme and a second portion transmitted using another multi-antenna transmission scheme includes determining a composite channel estimate from the transmit delay diversity portion of the signal. The method continues with segregating the composite channel estimate into delay groups corresponding to time offsets of the transmit delay diversity scheme for determination of first channel estimates for each subset of transmit antennas. Second channel estimates are determined for each subset of transmit antennas as a function of pilot symbols received in the second portion of the signal and corresponding ones of the first channel estimates. Thus, the first channel estimates are used to improve estimation of the second channel estimates. The method and variations of it may be implemented by configuring one or more processing circuits within a receiver circuit.

Abstract: A system and method for measuring convergence performance in a network are disclosed. In one embodiment, the method includes receiving a plurality of probes at a network device, temporarily storing data from at least a portion of the received probes and deleting at least a portion of the temporarily stored data at regular intervals, and receiving a packet indicating a convergence event and storing data from probes received over a predetermined period.

Abstract: An assessment system classifies a plurality of channels to several channel groups according to the characteristics of the channel groups and assesses the status of each channel by a corresponding method, such as a period comparison method or a SNR comparison method, defined based on the channel groups. Hence, the present invention allows simpler computations to be made and a simpler circuit structure to be used.

Abstract: A system, method and computer readable medium are provided for configuring network interfaces grouped into nodes for monitoring functionality. According to the method, a base address and subnet mask for the network interfaces are received, and a monitoring address is automatically generated for each of the network interfaces based on the base address, the subnet mask, and the nodes. The monitoring addresses is generated such that the monitoring address for each of the network interfaces is on a different subnet than the monitoring addresses for all of the other network interfaces in the same node as that network interface. Additionally, the monitoring addresses are assigned to the network interfaces for use by the monitoring process, with each of the monitoring addresses being assigned by being added as an additional network interface address of its network interface. Also provided is a method for monitoring functionality of network interfaces and providing fault recovery.

Abstract: A communication system including a controlled device to be controlled and an information processing apparatus, in which the controlled device includes a transmission means for transmitting a message indicating that an event has occurred to the information processing apparatus and a control means for performing processing according to a request from the information processing means, and in which the information processing apparatus includes a receiving means for receiving the message indicating that the event has occurred at the controlled device, which has been transmitted from the controlled device and a request means for deciding processing performed by the controlled device according to the event indicated by the message received by the receiving means and requesting the controlled device to perform the decided processing.

Abstract: The device for buffering packets emanating from a sending source (1) over a communication network (3) comprises recording means capable of recording elements obtained from the received packets into a buffer memory (8). The buffering device further comprises measurement means (9, 10, 11, 12) capable of measuring the difference between the bit rate of the incoming packet stream and the bit rate at the output of the buffer memory, and, if the bit rates are equal, said recording means are capable of recording the elements received in standard mode with an adaptive buffering threshold whose value varies within a limited range, whereas if they are unequal, the recording means are capable of recording in free mode with an adaptive buffering threshold whose value varies within a free range in such a way as to gradually compensate for said difference.

Abstract: The problem is that a measurement of the average signal quality (average modulation error ratio), does not identify poor quality signals that may be originating from an individual cable modem. The device of the present invention displays the modulation error ratio (MER) for each packet received. Since the media access control (MAC) address is associated with a packet received from an individual cable modem, a graph displaying the MER for each packet received is also displaying the MER for signals from the individual cable modems. Thus a technician viewing the display will be able to identify whether a low MER is a result of an impairment in the network or the from an individual cable modem.

Abstract: A communication quality measuring apparatus comprising a connecting section establishing a connection to the packet exchange network, a capturing section capturing packets transferred over the packet exchange network, an accumulating section accumulating the packets, a control section repeating the capturing of packets in sections of fundamental processing times, a setting section setting the capturing time and the interval time within each fundamental processing time, and a determining section determining whether or not the amount of load on hardware resources of the communication-quality measuring apparatus is greater than a predetermined value.

Abstract: The disclosed embodiments relate to a method in a transmitter for interleaving information bits from a data block into transmission bursts. Each of the information bits is assigned with an index. The interleaving includes computing positions of the information bits in the transmission bursts such that the values of the indexes of at least a portion of the information bits are modified. At a receiver it is determined if the value of any of the indexes has been modified before transmission of the transmission bursts. Based on the determination, de-interleaving of the information bits is then accomplished based on modified values of the indexes or originally assigned values of the indexes.

Abstract: The invention relates to a method for establishing a communication link. According to said method, to establish said link, a communications unit transmits at least one message that initiates the establishment of the communications link in at least one communications network and at least one corresponding confirmation is transmitted with the aid of a broadcast transmission method in the direction of the initiating communications unit. The information that represents the initiating communications unit is stored in the communications network or networks. The confirmation(s) that has or have been transmitted with the aid of the broadcast transmission method is detected and target information that is contained in said confirmation is compared to the stored information. If the compared information agrees at least partially, the confirmation(s) is or are routed to the initiating communication unit represented by the communication unit.

Abstract: A first computer stores a correspondence between a virtual channel and a physical channel(s) in physical channel information and transmits the correspondence between the virtual channel and the physical channel(s) to a second computer having a virtual network interface to which a data transmission instruction is addressed. Upon receiving the correspondence between the virtual channel and the physical channel(s), the second computer stores the received correspondence in the physical channel information. The first computer transmits data in accordance with the data transmission instruction, using one or more physical channels associated with the virtual channel, based on the correspondence stored.

Abstract: A method for deploying a cellular wireless communication network is provided. The method consists of: providing one or more micro base stations; autonomously deploying the micro base stations using a network access point linked to a cellular wireless communication network; and enabling configuration of the micro base stations to execute network operation commands from a network controller associated with the wireless communication network. Another aspect consists of enabling cooperation and network connectivity between micro base stations and other base stations, including micro base stations and large network base stations. Network connectivity to one or more cellular communication terminals associated with individuals or businesses subscribing to the cellular wireless communication network is enabled.

Abstract: A analytical framework is described for quantitatively analyzing reliability of a multinode storage system, such as a brick storage system. The framework defines a multidimensional state space of the multinode storage system and uses a stochastic process (such as Markov process) to determine a transition time-based metric measuring the reliability of the multinode storage system. The analytical framework is highly scalable and may be used for quantitatively predicting or comparing the reliability of storage systems under various configurations without requiring experimentation and large-scale simulations.

Abstract: A network device is to receive traffic including neighbor discovery messages from requesting customer devices, and can detect the neighbor discovery messages within the traffic according to a distributed inspection scheme that includes the network device and a remote component. The network device is to then examine the neighbor discovery messages to determine if the neighbor discovery message should be forwarded to other of the customer devices, and respond to the requesting customer devices.

Abstract: Techniques for a mixed audio conference are described. An apparatus may comprise an audio video multipoint control unit to mix call information from multiple call connections established over a packet-switched network for a conference call. The apparatus may comprise a telephony gateway communicatively coupled to the audio video multipoint control unit. The telephony gateway may establish a bridge connection with a conference bridge servicing a call connection over a circuit-switched network, the telephony gateway to translate call information from the call connection for use by the audio video multipoint control unit. Other embodiments are described and claimed.

Abstract: A method and system for setting up and managing secure data/audio/video conferences with a wide range of topologies is described. The disclosed method and system allow extending the range of topologies possible with the H.323 conferencing standards while overcoming T.120 negotiating constraints. Security in such conferences may be based on a trusted node system or on more complex security procedures. Furthermore, the taught conference topologies fully utilize the T.120 standards while also permitting the reach of the conferences to the extent enabled by the H.323 standards by implementing additional modules to manage the setting up and tearing down of one or more conference connections. In addition, the method and system allow for dynamically adjusting conference connections to improve bandwidth usage and utilize H.323 support for gatekeepers.

Abstract: Disclosed is a method for dynamically identifying locations of a plurality of mobile nodes in a time division multiple access (TDMA) based ad hoc communication network, wherein one or more mobile nodes are being moved in and out of a predefined region. The method comprises allocating a hello slot in a dedicated channel of the TDMA based ad hoc communication network to each of the mobile nodes and announcing the allocation to the mobile nodes through hello slot allocation map, receiving location information from each of the mobile nodes during their hello slot and determining mobile nodes that are inside the predefined region based on the received location information, allocating a data slot to each determined mobile nodes inside the predefined region and announcing the allocation to the mobile nodes through data slot allocation map, and receiving updated location information from each determined mobile nodes during their data slot.

Abstract: A method and system for determining thresholds for evaluating inter-system handovers in a wireless communication system includes determining a quality level of a first digital duplexing type, determining a quality level of a second digital duplexing type, and comparing the quality levels to determine whether to handover from the first digital duplexing type to the second duplexing type.

Abstract: A method includes establishing an ad hoc network between at least a borrower and at least one lender of bandwidth and downloading requested data from a data source via the ad hoc network. The method further includes leaving the ad hoc network while maintaining some of the downloaded requested data. The method further includes reestablishing a connection to the data source for completing the downloading of the requested data.

Abstract: Method, system, and computer program product for enabling dynamic creation of a coalition of multiplexed ad hoc networks to form larger ad hoc networks for service provisioning, in which multiplexers can be connected together in either a hierarchical structure or a parallel structure. Includes method, system, and computer program product for forming an ad hoc network composed of a multiplexer coupling a borrower to at least one lender and forming a coalition composed of the ad hoc network and at least one other multiplexer.

Abstract: Systems and methods to establish and execute market-driven variable price offerings among the lenders and borrowers in a bandwidth-sharing ad hoc network for shared bandwidth usage. The method comprises establishing and executing market-driven variable price offerings among lenders and borrowers. A bandwidth-sharing ad hoc network for shared bandwidth usage is formed based on the established and executed market-driven variable price offering.

Abstract: Secure, digital, packet-switched, voice telephony calls are wirelessly transmitted in an efficient manner that reduces air interface bandwidth consumption by encrypting only vocoder data frames containing encoded speech, and not encrypting vocoder data frames that do not contain speech, such as those containing silence parameters. The collective reduced bandwidth consumption across a large number of voice telephony calls may allow for the admission of one or more new calls during times of voice telephony congestion. Not encrypting the silence parameters does not compromise call privacy or security, since the silence data frames do not carry any speech. The classification of encoded data frames as containing speech or not may be performed in a variety of ways.

Abstract: In one embodiment an apparatus comprises a transceiver in data communication with an associated network and control logic coupled to the transceiver. The control logic is operable to send data to the associated network and receive data from the associated network via the transceiver. The control logic is configured to determine a network element for processing a data stream. The control logic is configured to acquire the network element from the associated network responsive to determining the network element for processing the data stream.

Abstract: A priority scheme method (300) for a communication system (100) at a base station (110) is described herein. The method can include the steps of receiving (310) from one or more mobile devices (120, 130) a power status message and allocating (315) a data profile of a frame based on the power status messages to enable higher priority mobile devices to receive data in the frame before lower priority mobile devices. As an example, the power status message may indicate whether a mobile device is being powered by a portable power source (175) or a non-portable power source (195).

Abstract: While maintaining a direct station-to-station link (STSL) with a second wireless client device in a centralized network, a first wireless client device may enter a doze mode, in which it cannot transmit or receive, and wake up periodically only to check for queued-up traffic from its associated access point. If the second wireless device in the STSL has data to send to the dozing first wireless device, it may do so by sending a notice to the first wireless device through the associated access point, which may queue up the notice until the first wireless device wakes up. When the first wireless device receives the notice, it may resume STSL communications with the second wireless device.

Abstract: In some embodiments, a method to manage power in a wireless communication device, comprises in a wireless networking adaptor, changing an operational status of a wireless networking adaptor to a sleep mode and transmitting a sleep message from the wireless networking adaptor to a host driver in an electronic device coupled to the networking adaptor, in the electronic device, determining whether a sleep duration specified in the sleep message exceeds a threshold, in response to a determination that the sleep duration specified in the sleep message exceeds a threshold implementing a selective suspend operation on the electronic device, and monitoring for a wake event, and in response to a determination that the sleep duration specified in the sleep message does not exceed a threshold, flushing one or more bulk IN buffers, and monitoring for a wake event.

Abstract: Stations in standby mode periodically wake up to check for buffered data at the access points. Traditionally, the information is available by checking the periodic beacon frame for a traffic indication map (TIM). Unfortunately, the length of beacons has steadily increased with the progression of the various wireless standards requiring stations to wake up for longer periods to merely check for buffered data. Several approaches are disclosed which address this shortcoming, including the broadcast of TIM frames, the partial reception of beacon frames and the use of an embedded TIM frame within a beacon frame.

Abstract: Aiming at realizing high breakdown voltage and low ON resistance of a semiconductor device having the super-junction structure, the semiconductor device of the present invention has a semiconductor substrate having an element forming region having a gate electrode formed therein, and a periphery region formed around the element forming region, and having an field oxide film formed therein; and a parallel p-n layer having n-type drift regions and p-type column regions alternately arranged therein, formed along the main surface of the semiconductor substrate, as being distributed over the element forming region and a part of the periphery region, wherein the periphery region has no column region formed beneath the end portion on the element forming region side of the field oxide film and has p-type column regions as at least one column region formed under the field oxide film.

Abstract: A wireless broadband Internet (WiBro) terminal and a method of determining a sleep mode of a WiBro terminal, which can measure a strength of a preamble signal and determine an effective sleep interval are provided. A WiBro terminal, which can measure a strength of a preamble signal in the listening mode during an L frame after operating in a sleep mode during an N1 frame, and operate in a sleep mode during either an N1 or 2*N1 frames, or perform a normal operation when MOB_TRF_IND is positive, resulting from the comparing the strength with a threshold value, is provided.

Abstract: A method for supporting telecommunications over a wide area network. The method can include receiving telecommunications content and a group identifier from a first remote unit (104). From the group identifier, a plurality of recipient identifiers can be identified. The telecommunications content and the plurality of recipient identifiers can be communicated to a packet duplicator (150). Each of the recipient identifiers can be associated with at least one intended recipient (106, 108) of the telecommunications content. The telecommunications content then can be communicated via at least one peer-to-peer communications link to a plurality of telecommunications stewards (136, 138). Each of the telecommunications stewards can be associated with at least one respective recipient identified by at least one of the recipient identifiers.

Abstract: The invention relates to group communication services, i.e. communication services involving two or more users (or service participants). The invention provides a method for distributing multicast data of a multicast service to different domains and a method for distributing multicast data to service participants in a domain. Further, the invention relates to a control node and system implementing the respective methods. To improve resource utilization when providing a multicast service, including inter alia PoC services, to service participants the invention provides mechanisms to avoid unnecessary multiplication of multicast data in the distribution tree for multicast services with service participants of different domains. For this purpose the controlling node that is initiating the multicast service upon request determined to which domains the multicast data is to be provided and only forwards the multicast data on a per-domain basis.

Abstract: Provided is a modulating apparatus and method of an on-channel repeater. An object of the present invention is to provide a modulating apparatus of an on-channel repeater for reducing time delay by configuring and up-sampling a baseband signal, filtering the up-sampled baseband signal with an Equi-Ripple (ER) filter or in a window method, and converting the filtered baseband signal into an RF signal. The modulating apparatus includes: a baseband signal configuring unit for configuring a baseband, signal by combining an input field and a segment sync signal; a pilot adding unit for adding a pilot signal to the baseband signal; a filtering unit for filtering the baseband signal with the pilot signal; and an RF up-converting unit for up-converting the filtered signal into an RF signal. The present invention is used to form an on-channel repeating network in a transmitting system including a digital TV broadcasting system.

Abstract: A method for transmitting multicast data in a WiMax/WiBro relay system, including transmitting carrier-interference-noise ratios from UEs to corresponding Relays; selecting the minimum value among the carrier-interference-noise ratios; determining the modulation and coding mode according to the selected minimum value; transmitting the modulation and coding mode to BS; selecting a modulation and coding mode with a highest rate for multicast data on an access link; transmitting the final modulation and coding mode to the Relays; and transmitting data via the access link with the modulation and coding mode determined by the BS.

Abstract: An access control system including a base station located near a stationary target site used to control access to the stationary target site and satellite access station coupled to the exterior of a satellite target site used to control access to the satellite target site. The base station includes an identification device, storage device, a control unit, a user interface and a transceiver. A master database containing a list of access information for all of the satellite access stations is stored in the storage device. Each satellite access station includes a second identification device, a second storage device, a control unit and a second transponder. A satellite database contains a list of access information for the satellite target site. Information contained in the master database for a particular satellite access station is provided to the particular satellite access station and stored in the satellite database.

Abstract: Provided is a mobile tri-band antenna system having low profile. The antenna system includes a tri-band feeding unit for dividing a satellite broadcasting signal by a signal channel in an azimuth angle and an elevation angle, and transmitting/receiving the satellite communication signal through distinguishing the satellite communication signal; a beam shaping unit for dividing the satellite broadcasting signals into a first channel signal and a second channel signal, combined power thereof through channel switching; an antenna controlling unit for driving an antenna system in an azimuth and elevation angle to direct the satellite according to the power combined second channel signal from the beam shaping unit; a first triplexer unit for outputting the power combined first channel signal to a rotary joint unit; a second triplexer unit for converting the first channel signal inputted to a downlink frequency and providing the converted first channel signal to the indoor apparatus.

Abstract: Systems, methods, and devices are described for scheduling and mapping upstream communications in a satellite communications system. The disclosure includes various channelization and frequency hopping techniques. A gateway is described to perform novel allocation of time slots on upstream frequency channels to allow frequency hopping. A subscriber terminal may perform frequency hopping according to the allocation, and the range may be limited to the transition range of a digitally controlled oscillator unit at the subscriber terminal. A gateway is described to allocate time slots on different upstream frequency channels in a prioritized manner. Subscriber terminals may receive the allocation, and then control the assignment of their upstream traffic to the time slots.

Abstract: A system including communications means (3), an application server (7) and a gateway (2) between the communication means and the application server is adapted to effect communications with terminals in relation to services offered by said application server, each communication being effected via said communications means using a bearer service between a terminal and said gateway. In relation to a terminal (1) that has a communication in progress or requested according to a service offered by said application server: there are determined in the application server parameters of said service substantially corresponding to respective bearer service characteristics; the parameters that have been determined are sent to the gateway; and said communication is selectively processed in the gateway as a function of parameters that have been received.

Abstract: A method for prioritizing Mobile IP between PMIP and CMIP includes the steps of connecting a mobile device (118) to a communication network (102) and determining (308) if the network provides mobility control, such as the network being PMIP-enabled. When it is determined that the network provide mobility control, the mobility function is assigned (312) to the network and is therefore given priority over the mobility function provided by the mobile device. It can be determined (304) that the mobile station also includes a mobility control so that when the network is not PMIP-enabled the mobile station controls (314) layer 3 mobility and the Mobile IP function.

Abstract: For the purpose of allowing a sensor device (10) to carry out wireless communication with a server node (11), the sensor device (10) makes an inquiry about the server node (11) connectable to the sensor device (10) (S12). The server node (11) responds to the sensor device (10) (S13). The sensor device (10) transmits a result of the inquiry as a candidate list (S15). The server node (11) transfers the candidate list to a top node (S16). The top node receives key information and selection information selected from the candidate list, and transmits the key information and the selection information to the server node (11) selected (S19). The server node (11) transfers to the sensor device (10) the selection information, the key information, and a building ID and a room ID of the server node (11). The sensor device (10) determines whether the key information received agrees with sensor device key information (S20).

Abstract: The claimed subject matter relates to systems and methods for processing messages in a wireless communications environment. In an aspect, a communications method is provided. The method includes establishing a communications link though an access component with a network domain node and enabling at least one other communications link through at least one other access component with the network domain node. This also includes enabling concurrent communications with the network domain node via the access component or the other access component.

Abstract: A wireless multi-hop network communication terminal 11 uses a Hello information suppression function 21 to suppress a part of information included in a Hello message for a given time after start-up or a new neighbor terminal is detected, thereby reducing message length. Further, the communication terminal 11 uses a Hello interval adjustment function 22 to adjust and shorten a Hello interval during the suppression of the Hello message length. After canceling the suppression of the Hello message length, the communication terminal 11 calculates and establishes a second Hello interval that is shorter than the usual one. Furthermore, after canceling the second Hello interval, the communication terminal 11 reestablishes the steady-state Hello interval.

Abstract: The objective of the invention is to enable easy recognition of a wireless communication device at the connection destination and to enable connection when wireless connection is newly made between wireless communication devices. On display 302 of digital television receiver 3, image pattern 301 obtained by converting the SSID and WEP key or other connection information is displayed. Digital still camera 4 takes a picture for image pattern 301. Digital still camera 4 performs re-conversion for the picked-up image pattern 301 to the connection information, and the connection information is used for wireless connection to digital television receiver 3.

Abstract: Briefly, the invention concerns the issue of supporting link adaptation in a wireless network, and basically involves implicit signaling for link adaptation based on transfer of transmit duration information. More particularly, a designated originating node sends (S1) a first message, including an indication of a current transmit duration for transfer of a predetermined amount of information, to at least a designated receiving node. The current transmit duration corresponds to a currently assumed data link rate. The designated receiving node selects (S2) a desired data link rate for subsequent communication from the originating node, and then determines (S3) an updated transmit duration according to the selected data link rate. The receiving node sends (S4) a second message, including an indication of the updated transmit duration, to at least the designated originating node, and the originating node then determines (S5) an updated data link rate in response to the updated transmit duration.

Abstract: The present invention relates to an apparatus and method in a telecommunication system for controlling communication services between client terminals (10, 20, 30) in a network, comprising at least one application server (40) hosting a core communication service, at least one intermediate communication node (50), hosting a network residing communication part for communication with the client terminals, and the application server and intermediate communication node being adapted to seamlessly control transfer of communication sessions between the client terminals, The invention is characterised in that a controller is provided for controlling transfer of communication sessions between the terminals is divided into at least two parts, one of the parts residing in the client terminal, such as mobile telecommunication terminal, and another part residing in the intermediate communication node.

Abstract: The present invention is directed towards providing event-triggered communication in a half duplex communication environment of a wireless communication network (10). A first end terminal (12) sends a selection of an end terminal (14) in a group of terminals to act as an event notifying device to a server (22). The event notifying device (14) compares an event with a threshold and sends an event notifier to the server if the event exceeds the threshold. If it receives the event notifier, the server prioritises data from the event notifying device over ongoing communication sessions for other devices in the group, receives data from the event notifying device associated with the event notifier and transports data indicative of the event to other devices of the group, in order to inform them of the event.

Abstract: Advanced communications features are provided in a mobile communications network having at least one mobile switching center and at least one mobile station subsystem. The mobile switching center and mobile station subsystem each communicate signaling messages according to a mobile signaling protocol.