Abstract: A wireless terminal receives a signal from a first BTS as a communication party and a signal from a second BTS when receiving the signal from the first BTS by using a communication slot that is assigned to the terminal, the terminal comprises receiving antennas; a demodulator unit that estimates channels of received signals, and demodulates the received signals by using the estimation result; and a discriminating unit discriminating the number of transmitting antennas to be used in the first BTS in the communication slot which is assigned to the terminal, in which in the case where the number of channels that are produced between the first BTS and the terminal, which is determined according to the number of transmitting antennas, is smaller than the number of channels that can be estimated by the demodulator unit, the demodulator unit estimates the channel between the terminal and the first BTS by using a signal from the first BTS, and estimates the channel between the terminal and the second BTS by using a s

Abstract: A receiving method receiving an OFDM signal including a first OFDM symbol having first and second pilot signals allocated to first and second subcarriers positioned symmetric on the frequency axis, and a second OFDM symbol having third and fourth pilot signals allocated to the first and the second subcarriers, a difference between a product of the first pilot signal and a complex conjugate of the fourth pilot signal and a product of the third pilot signal and a complex conjugate of the second pilot signal being non-zero, estimating a first coefficient representing a change components of an amplitude and a phase, and a second coefficient representing an interference component, using first and second received pilot signals corresponding to the first and third pilot signals, estimating from the first and second coefficients IQ imbalance, and compensating the influence of amplitude and phase errors in accordance with the IQ imbalance.

Abstract: The specification and drawings present a new method, system, apparatus and software product for variable filtering of a mobile station (MS) for supporting uplink communications using available capabilities of a network element in wireless communication systems (e.g., evolved GERAN). The MS may have at least two different pulse shaping filter capabilities providing at least two different bandwidths: one narrower being suitable for legacy transceivers and another wider and thus optimal for variable symbol rate from performance point of view.

Abstract: Systems and methods for round-trip-delay adjustment in a multipoint-to-point orthogonal frequency division multiplexing (OFDM) system are provided. In one embodiment, a method for multipoint-to-point communication comprises: receiving at a host a plurality of upstream symbols transmitted from a plurality of remote units, the upstream symbols transmitted on a plurality of orthogonal carriers modulated using an inverse Fourier transform; and determining respective round trip path delay values associated with each of at least two of the plurality of remote units.

Abstract: A method and an apparatus for improving power efficiency of a User Equipment (UE) by using channel state information between a Node B and the UE and power headroom information of the UE in a mobile communication system. The method includes acquiring power information in relation to transmission powers of UEs; arranging the UEs in a sequence based on the power information; determining, for each UE according to the arranged sequence, whether a first reception power of a Node B exceeds a second reception power; allocating a resource area including partially consecutive sub-carriers to at least one corresponding UE when the first reception power exceeds the second reception power; allocating a resource area including entirely consecutive sub-carriers to at least one corresponding UE when the first reception power does not exceed the second reception power; and transmitting resource allocation information indicating the allocated resource area to the each UE.

Abstract: Systems and methods for multiframe alignment in a multipoint-to-point orthogonal frequency division multiplexing (OFDM) system are provided. In one embodiment, a method for communicating a multiframe comprises: receiving at a host a plurality of upstream symbols transmitted from a plurality of remote units, the upstream symbols transmitted on a plurality of orthogonal carriers modulated using an inverse Fourier transform; and adjusting a transmission timing of at least two of the plurality of remote units so that symbols transmitted from the at least two of the plurality of remote units and associated with frames of a predetermined multiframe structure are received at the host in a sequence based on the predetermined multiframe structure.

Abstract: Systems and methods for ranging in a multipoint-to-point orthogonal frequency division multiplexing (OFDM) system are provided. In one embodiment, a method for ranging comprises: receiving at a host a plurality of upstream symbols transmitted from a plurality of remote units, the upstream symbols transmitted on a plurality of orthogonal carriers modulated using an inverse Fourier transform; comparing a phase of at least one ranging symbol received from at least one of the plurality of remote units with a reference generated by the host; transmitting an adjustment instruction instructing the at least one of the plurality of remote units to vary a phase of transmissions transmitted from the at least one of the plurality of remote units based on a difference in phase between the at least one ranging symbol and the reference generated by the host.

Abstract: Provided are a portable terminal and method for multitasking for executing application programs of the portable terminal together with reception of digital broadcasting. The multitasking method of the present invention includes receiving and reproducing digital broadcast data requested by a user, and providing multitasking of executing at least one application program of the portable terminal according to a user's request during the reception and reproduction of the digital broadcast data.

Abstract: The present invention provides a duplex system for setting a route of telecommand and a method thereof. A duplex system for setting a route of telecommand, including: a first telecommand processing unit and a second telecommand processing unit for changing a format of a telecommand into a predetermined format; an up/down converting unit for up-converting the telecommand and for down-converting a telemetry; a first modem for modulating the telecommand; a second modem for modulating the telecommand; a control unit for setting the first modem as the route of telecommand, observing the first modem and the second modem and changing the second modem as the route of telecommand when an error occurs in the first modem; and a switching unit for setting the route of telecommand as one of the first modem and the second modem and transmitting the telecommand into the up/down converting unit.

Abstract: A method to link aggregate over independent redundant switches is provided for use in an apparatus including first, second, and third switches in a local area network (LAN). A first port of the first switch is connected to a first port of the second switch, a second port of the second switch is connected to a first port of the third switch, and a second port of the third switch is connected to a second port of the first switch. The method includes forming a first link aggregation group (LAG) between the first and second ports of the first switch; forming a second LAG between the first and second ports of the second switch; and applying a port forwarding rule to the first and second ports of the second switch, where the first switch is in an active mode and the second switch is in a standby mode.

Abstract: A system for switching from a working path to a protected path when the working path becomes inoperable. In accordance with this system, point to multi-point adjacency is established between interfaces on two directly connected routing systems. This improves the speed at which the switch may occur.

Abstract: Various techniques of simple modifications to TCP/IP protocol and other susceptible protocols and related network's switches/routers configurations, are presented for immediate ready implementations over external Internet of virtually congestion free guaranteed service capable network, without requiring use of existing QoS/MPLS techniques nor requiring any of the switches/routers softwares within the network to be modified or contribute to achieving the end-to-end performance results nor requiring provision of unlimited bandwidths at each and every inter-node links within the network.

Abstract: A method and system for transitioning a flow control protocol (FCP) in an access terminal (AT-FCP) from an Open state to a Close state when a transmission-off response (XoffResponse) message gets lost during a transmission, the method and system comprising sending a first transmission-off request (XoffRequest) message by the AT-FCP, measuring time upon sending the first XoffRequest message, and transitioning the AT-FCP to the Close state when a predetermined length of time has elapsed since sending the first XoffRequest message, alternatively, the method comprising sending at least one XoffResponse message by a FCP in an access network (AN-FCP) every time a transmission-off request (XoffRequest) message is received by the AN-FCP regardless of the AN-FCP is in the Open state or the Close state.

Abstract: The present invention comprises agent for gathering transaction log means for automatically collecting all exchange messages notarized and recorded depressively by a plurality of electronic notarize means in connection with the electronic commerce transaction so as to reproduce them as an event of the entire wide network area, agent for gathering protocol standards means for automatically collecting protocols of the specifications on the electronic commerce transaction, whereby correctly grasping an event to be generated in the entire wide network area, and a log analysis engine for comparing the event of the entire wide network area reproduced by the agent for gathering transaction log means with the event to be generated in the entire wide network area grasped by the agent for gathering protocol standards means, whereby carrying out an objective audit.

Abstract: Traffic flows through an administered network from an off-network source and/or to an off-network destination are simulated and analyzed by selecting an ingress and/or egress node within the administered network, the ingress node capable of collecting traffic from an off-network source, and the egress node capable of routing traffic to an off-network destination. Traffic flow is mapped from the source or ingress node through the administered network to the egress node. The traffic flow may be simulated and analyzed. The ingress and/or egress nodes may be selected in a variety of ways.

Abstract: A method to aggregate evaluation of at least one metric across a plurality of resources may include determining an aggregate evaluation of a selected metric for a group of resources of the plurality of resources. The method may also include adjusting the aggregate evaluation of the selected metric in response to any evaluation criteria and determining if any predetermined thresholds have been violated.

Abstract: Binding a control plane to a data plane is disclosed. Binding includes receiving a request to initiate a session, wherein the request is sent via a Session Initiation Protocol (SIP)-based protocol and transmitting a set of one or more service parameters associated with the request to an edge node configured to participate in the session.

Abstract: When protection processing is applied after a fault in the optical switching unit while the path control unit is restarting. In network systems comprising a path control unit for setting the paths, and a data transmission unit coupled to the path control unit; the data transmission unit changes the path information, stores path information before and after the fault was detected, and transmits the path information from before or after fault detection to the path control unit, and decides either of the transmitted path information based on an internal status; and the path control unit stores the path information sent from the data transmission unit, and after restarting, receives path information from the data transmission unit and, acquires path information stored in the path control units controlled by the adjacently connected data transmission units and is restored to operation with path information from before restarting.

Abstract: The present invention resides in a method of transmitting data packets between a first node coupled to be in communication with a first network and a second node coupled to be in communication with a second network, the first network and the second network coupled to be in communication with a plurality of network interfaces. The method includes measuring a forward data flow rate and a reverse data flow rate between the first node and the second node, determining an aggregate data flow rate based on the forward flow rate and the reverse flow rate, and assigning data flow to one or more of the network interfaces based on an available bandwidth of each network interface and the aggregate data flow rate.

Abstract: Methods and structure for standardized, high-speed serial communication to reduce memory capacity requirements within receiving elements of a high-speed serial communication channel. In an exemplary SPI compliant embodiment of the invention, the semantic meaning of the STARVING, HUNGRY and SATISFIED flow control states is modified to allow the transmitting and receiving elements to manage buffer storage in a more efficient manner to thereby reduce memory capacity requirements while maintaining the integrity of flow control contracts and commitments. The methods and structure further provide for generation of storage metric information to dynamically update the flow control status information asynchronously with respect to data packet transmissions.

Abstract: A method for dropping lower priority packets for transmission over a wireless communication medium is provided. A central device receives one or more packets to be transferred to one or more data providers, each packet having a priority. Then, based on the priority, a media access controller stores each of the packets in one or more priority queues in a fixed shared memory space in such a way as to maintain the order in which the packets were received in each of the priority queues. The media access controller monitors the number of packets in each of the priority queues and signals an interrupt when a packet threshold is exceeded in one or more of the priority queues. The media access controller then drops lower priority packets in the fixed shared memory space based on the order received to guarantee that there is enough memory to store higher priority packets in the fixed shared memory space.

Abstract: Methods, systems, and computer program products for hairpin condition elimination in a telecommunications network are disclosed. A method is disclosed herein for eliminating a hairpin condition at a network node. According to one method, a first and second call leg, each using packet processing resources in a bearer node, are identified; if the first and second call legs are in a hairpin condition, the first and second call legs are connected together in the bearer node in a manner that bypasses and releases packet processing resources.

Abstract: A method and apparatus for communication in a wireless sensor network. In one embodiment, one or more routers in a network may be available for communication with one or more star nodes at a randomized time and/or frequency. A connectivity assessment, which may be performed at several different frequencies and/or times, may be performed to evaluate the quality of communications between devices in the network. Primary and secondary communication relationships may be formed between devices to provide for system redundancy. One or more proxies may be maintained where each proxy includes a status of one or more devices in the network, e.g., one or more star nodes or routers. Proxies may be used to handle information requests and/or status change requests, e.g., a proxy may be requested to change a communication relationship between devices in the network and may generate command signals to cause the corresponding devices to make the change.

Abstract: A system for analyzing network activity by displaying in a first portion of a display, network objects according to an activity characteristic, receiving a selection of one or more of the network objects, and displaying in a second portion of the display, a further activity characteristic of the selected network objects according to at least a first criteria. The display of the network objects may be altered according to second criteria that may include filtering criteria that removes network objects displayed in the first portion. The results of the altered display may be displayed in a third portion of the display providing further details of the selected network objects. The selection of the network object may be a selection of a plurality of objects and the displayed activity characteristic may be a sum of the selected network objects activity characteristics.

Abstract: A method for determining whether a user having a communications device has encountered a perilous situation includes detecting a sound with the communications device and determining whether the sound is indicative of the perilous situation. The method generates a query with the communications device for the user when the sound is determined to be indicative of the perilous situation and waits for a response from the user via the communications device. The response or lack thereof is capable of confirming the perilous situation or a false alarm.

Abstract: A method is provided for adapting models on the basis of link quality indicators. A plurality of statistical models which predict whether a given data bit in a stream of data bits is in error are first defined, where each model includes an indicator of bit errors in the bit stream used to train the model. The method then includes: receiving a data packet at a receiver in a wireless network; determining an indicator of bit errors for the received data packet; and processing the data packet at the receiver using a model from the plurality of models which correlates to the bit error indicator for the data packet.

Abstract: The invention relates to a method, measurement arrangement, analyser and analyser program for debugging transmission failures in a telecommunication network. In the method, the analyser utilizes both internal events of a telecommunication component and signalling messages transmitted in the telecommunication network. Internal events and external signalling messages are combined or correlated for speeding de-bugging.

Abstract: A method for detecting link failures between nodes in hybrid networks includes: establishing sub-BFD connections between nodes and edge nodes and establishing an end-to-end BFD connection. When a failure occurs in the sub-BFD connection of IP network segment, notify a peer node of the failure via the end-to-end BFD connection. When a failure occurs in the MPLS OAM mechanism of MPLS network segment, the edge node notifies the node of the failure via the sub-BFD connection. Another method includes: establishing sub-BFD connections between nodes and edge nodes. When one end of the sub-BFD connection failures, notify the IP network segment at the peer end of the failure via an extended MPLS OAM mechanism and notify the node of the failure via the sub-BFD connection of the IP network segment. An interworking between the BFD detecting mechanism and the MPLS OAM detecting mechanism in a hybrid network can be implemented.

Abstract: Bearer attribute information (20) indicating at least one bearer usable by an application and the priority of the bearer is compared with the characteristic information (21) of a communication terminal, thereby generating a bearer list (23) including, of bearers of the bearer attribute information, bearers usable by the communication terminal and the priorities of the bearers. The bearer list is stored in a database (DB). A bearer to be used by the application is selected in accordance with the priority in the bearer list, and the communication process of the application is executed. This allows to implement an application execution environment that sufficiently reflects the application provider's intention. The bearer list can be changed by the user via a user interface (24). In this case, the user can change the bearer list only within the range stored in the database. This prevents any arbitrary setting by the user.

Abstract: A network and method for the delivery of digital data is disclosed having at least one peer (102a) downloading the digital data from a plurality of data sources (102, 312), at least one data monitoring device (800) for monitoring at least one quality of service parameter for the delivery of the digital data and at least one data delivery controller (810) for adjusting at least one of the rates for the delivery of the digital data from at least one of the plurality of data sources (102, 312).

Abstract: A method and apparatus which determine the minimum transmission power level of an access point (AP) for reliably communicating with at least one wireless transmit/receive unit (WTRU) in a wireless communication system. The apparatus obtains the range of the AP and estimates the interference to the AP by executing a slow interference estimation process and a fast interference estimation process. A required received power (RRP) of the WTRU is obtained from the interference estimate. The minimum transmission power level of the AP is determined by summing the range of the AP and the RRP.

Abstract: A method of detecting voice over Internet protocol (VoIP) traffic utilizes filtering criteria based on assumed packet header information. In a disclosed example, a combination of filtering criteria is based upon an assumption that VoIP traffic will be transported using the Real time Transport Protocol (RTP). In one example, if a correct RTP version is being used and a CSRC count is as expected, a packet is determined to be VoIP traffic. In another example, when a UDP header indicates a payload length within a specified range, UDP ports are both even-numbered, the RTP version is correct and the CSRC count is correct, a packet is determined to be VoIP traffic.

Abstract: Methods and apparatus for use with an integrated circuit device of a processing device of a network node of a digital networking system, configured to monitor one or more control messages received at the processing device from each of a plurality of CPE devices, and limiting the one or more control messages to one or more specified rates for a specified duration. The integrated circuit device is further configured to provide one or more data channels to the plurality of CPE devices from the processing device in response to the one or more control messages processed at the processing device.

Abstract: A distribution of a content selection being distributed throughout a wireless mesh network may be tracked. A wireless device in the wireless mesh network enables the content selection to be exchanged. Wireless devices then exchange the content, and a network topology is recorded in response. Finally, the network topology is reported to a reporting agent.

Abstract: A method and apparatus for call quality troubleshooting and mitigation may include polling network communication path elements to determine network performance data, receiving a call quality alert from at least one communication unit, the call quality alert indicating degraded call quality of a call session, and analyzing the network performance data from the network communication path elements and the at least one communication unit to determine a cause of the alert and at least one action to mitigate the cause of the alert.

Abstract: A protocol governing the operation of an ad-hoc WLAN enables each device in the WLAN to be configured as a registrar and/or an enrollee. Accordingly, each device is configurable to support both the registrar as well as enrollee modes of operations. In response to a time-driven user action, the device may be configured to enter into a registrar mode or an enrollee mode. While in the registrar mode, the device enters into an aggressive beaconing phase by setting its beacon contention window to a relatively very small value. The aggressive beaconing increases the probability of the discovery of the registrar by the enrollees. Optionally the device may prompt the user to select between a registrar and an enrollee mode of operation by displaying the option on an LCD panel.

Abstract: A switch of a network. The switch includes a topology database having configuration information. The switch includes a mechanism for sending the configuration information from the topology database to the network and for receiving configuration information from the network and storing it in the topology database. A telecommunications system. A method for operating a telecommunications network.

Abstract: In one embodiment, a user can send a message to all available, scheduled participants in a conference call by pressing a conference notification softkey. When this conference notification softkey is pressed, a message concerning the conference call appears on the display screen of the available scheduled participants.

Abstract: In one embodiment, a method includes steps of verifying, by a first server, that a user associated with an endpoint is authorized to access a service provided by a second server. The first server then sends a Session Initiation Protocol (SIP) out-of-dialog REFER with a Replaces header to the second server. A dialog identification ID of a session between the endpoint and the first server is embedded within the Replaces header. The SIP out-of-dialog REFER causes the second server to send a SIP INVITE with the Replaces header to the endpoint to establish a new session between the endpoint and the second server. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure.

Abstract: A method and system establishing a floor grant in a Push-to-Talk over Cellular (PoC) communication network includes a first step of initiating a PoC session. A next step includes associating a floor grant parameter with the PoC session. A next step includes determining the floor grant parameter associated with the PoC session. A next step includes mapping the floor grant parameter to a predefined floor control scheme. A next step includes operating the PoC session with the floor control scheme. The present invention allows floor control schemes other than the commonly known floor grant to the caller initiating a PoC session.

Abstract: A method and system of controlling transmit power of a forward link signal between a basestation and a mobile device in a communications network, the method comprising the steps of: sending a first signal from the basestation to the mobile device, the first signal having a first signal transmit power; receiving the first signal at the mobile device; measuring the first signal for a received signal to noise ratio at the mobile device; sending a second signal from the mobile device to the basestation, the second signal containing information about the received signal to noise ratio; and setting the transmit power of the forward link signal based on the received signal to noise ratio information and the first signal transmit power, whereby if the received signal to noise ratio is high the setting step sets the transmit power of the forward link signal lower, and if the received signal to noise ratio is low the setting step sets the transmit power of the forward link signal higher.

Abstract: The present invention relates to an information processing apparatus and a communication apparatus for accurately recognizing at the base station the current receiving quality of the mobile terminals for improving the throughput of the base station. A mobile terminal 61 determines its own receiving quality based on the signal received from the base station 62 for generating the receiving quality message indicating the receiving quality and generates the power control information requesting the transmission power of the base station 62. The receiving quality message is transmitted at a frame rate and power control information is transmitted at the slot rate to the base station 62. Based on both the receiving quality message and power control information, the base station 62 estimates the current receiving quality of the mobile terminal 61 and adaptive modulation and coding is performed based on the estimated value. The present invention may be applied to cellular phones and base stations.

Abstract: A method and a system for implementing echo cancellation. The method (300, 400) can include, on a first communication device (200), generating an acoustic signal (130) corresponding to an audio signal (110) received from a second communication device. Responsive to receiving a portion of the acoustic signal and detecting it is clipped, filter coefficient adaptation in an echo cancellation system (205) can be neutralized. For example, filter coefficients can be maintained at previous values, a control signal (230) that indicates zero error can be provided to an adaptive algorithm (235) that generates filter coefficients (225), a control signal can be provided that indicates to the adaptive algorithm to halt automatic updating of the filter coefficients that are generated, or a control signal can be provided that indicates to an adaptive filter (245) to halt automatic updating of the filter coefficients that are processed.

Abstract: A method of delivering content updates for user interfaces to devices is disclosed. The content data comprises metadata that determines how upgrades to the content data is delivered, for example locations of the updates, the frequency at which updates are accessed, etc. The metadata may also locate a further data resource, such as a database, that stores the location of the content data upgrades.

Abstract: Systems and methods are provided for communicating data content using different protocols. The systems and methods may include intercepting a transmission from a first transceiver containing a first data content, using a first protocol. The first protocol may be identified and an assessment made whether the first protocol is compatible with a second transceiver. Based on the assessment that the first protocol is not compatible with the second transceiver, data content may be converted to a second protocol. The data content may be transmitted to the second transceiver using the second protocol. The systems and methods may automatically convert the data content to the second protocol based on information associated with the first or second transceivers.

Abstract: A method and apparatus for communication in a wireless sensor network. In one embodiment, one or more routers in a network may be available for communication with one or more star nodes at a randomized time and/or frequency. A connectivity assessment, which may be performed at several different frequencies and/or times, may be performed to evaluate the quality of communications between devices in the network. Primary and secondary communication relationships may be formed between devices to provide for system redundancy. One or more proxies may be maintained where each proxy includes a status of one or more devices in the network, e.g., one or more star nodes or routers. Proxies may be used to handle information requests and/or status change requests, e.g., a proxy may be requested to change a communication relationship between devices in the network and may generate command signals to cause the corresponding devices to make the change.

Abstract: The present invention comprises agent for gathering transaction log means for automatically collecting all exchange messages notarized and recorded depressively by a plurality of electronic notarize means in connection with the electronic commerce transaction so as to reproduce them as an event of the entire wide network area, agent for gathering protocol standards means for automatically collecting protocols of the specifications on the electronic commerce transaction, whereby correctly grasping an event to be generated in the entire wide network area, and a log analysis engine for comparing the event of the entire wide network area reproduced by the agent for gathering transaction log means with the event to be generated in the entire wide network area grasped by the agent for gathering protocol standards means, whereby carrying out an objective audit.

Abstract: A system of establishing a VoIP connection has a network device linking to Internet and building at least one VoIP connection software, a mobile phone having a blue tooth device and an antenna adapted to link to a base station, and a blue tooth headset linked to the blue tooth device of the mobile phone and the blue tooth device of the network device. The blue tooth headset builds a dialing procedure used to establish a VoIP connection through the network device to make a VoIP phone call. Therefore, a mobile phone user can use the mobile phone to make a mobile phone call, a local phone call and a VoIP phone call and does not set in front of the computer to make a VoIP phone call.

Abstract: A relay apparatus 1 includes: a priority table 14 for storing a higher priority transmission identifier and transmission condition data; a bandwidth management part 12 for determining whether or not a received transmission identifier should be recorded in the priority table 14 as a higher priority transmission identifier; a priority control part 16 for relaying the transmission identified by the higher priority transmission identifier by priority; a monitoring part 11 for monitoring a transmission condition of the wireless terminals 2a, 2b and storing a value indicating a degree of degradation of the transmission condition as transmission condition data in the priority table 14; and a lower priority transmission identifying part 15 for selecting a transmission with a higher degree of degradation of a transmission condition as a lower priority transmission in the case where a total bandwidth in use for transmissions indicated by the higher priority transmission identifiers exceeds a predetermined threshold val

Abstract: Methods and apparatuses for dynamically adjusting the sensitivity of a receiver for detecting air frames destined for the receiver may generally include determining a number of false frames previously detected by a wireless receiver in a period of time and adjusting a threshold to be compared with correlation output used to detect frames based on the determined number of false frames previously detected. In this manner, the sensitivity for a receiver in detecting frames may be increased or decreased based on the current environment in the wireless network. Additional embodiments and variations are also disclosed.