Abstract: A system and method are disclosed for providing redundancy for telecommunication switches. A primary telecom switch has an active processing board and a passive I/O board for communicating with external sources, such as a control network and bearer traffic network. A redundant secondary telecom switch has an active processing board and a passive I/O board for communicating with a control network, and is connected to the I/O board of the primary switch through a redundancy connection for communicating with the bearer traffic network. According to the invention, the secondary telecom switch assumes the role of the primary telecom switch in the event that the primary processing board becomes unavailable. The secondary telecom switch then communicates with the bearer traffic network as the master switch through the redundancy connection and the I/O board of the primary switch, thus avoiding the necessity for reconnections and reconfiguration.

Abstract: The invention relates to a method of effecting in a computer system transmission of data between a digital user unit and a computer resource, the user unit being adapted to detect positions on a base which is provided with a part of a global position-coding pattern. The invention is characterized in that a request for access to a computer resource is received, using a first protocol stack, by the computer system from the user unit, said request containing a position indication, relating to which part of the global position-coding pattern that has been detected by the user unit. The computer system gains access to a computer resource using a communication mode and a second protocol stack. The communication mode is chosen based on the position indication. Only the second protocol stack comprises TCP/IP functionality, so that only data transmitted between the computer system and the computer resource comprises routing information.

Abstract: In a multi-carrier transmission scheme (frequency domain multiplexed—FDM), a single high rate data stream is split into multiple lower rate data streams each transmitted over a different carrier (e.g., a tone or bin). The data rate possible from a multiple-carrier transmission scheme is theoretically equivalent to the data rate possible from a single-carrier (including baseband) scheme with the same composite bandwidth. The scheme allows for a communications system that can selectively send each data signal (e.g., audio data, video data, raw data, etc.) partitioned out into full and half duplex sections (e.g., tones). The scheme can have a reduced complexity and cost and use less bandwidth. This is done by being able to selectively split a data signal into both full and half duplex tones.

Abstract: Tree data structures are stored among and within multiple memory channels, which may be of particular use with, but not limited to tree bitmap data structures. A subtree (or entire tree) typically includes one or more leaf arrays and multiple tree arrays. One or more leaf arrays are typically stored in a first set of memory channels of N+1 sets of memory channels, the N+1 sets of memory channels including N sets of memory channels plus the first set of memory channels. Paths of the multiple tree arrays are typically stored in said N memory channels, wherein each tree array of the multiple tree arrays associated with one of said paths is stored in a different one of said N sets of memory channels.

Abstract: A method and system for credit recovery of lost frames and R_RDYs in an in-line credit extender is provided. The method includes, comparing received frame count and a programmable counter value when BB_SCs are received; loading the difference between the frame count and the programmed counter value into a buffer and to a first counter that counts each frame that is transmitted; and sending BB-SCs to the local device if there is a match between the first counter value and a second programmable counter value. The method also includes, counting received R_RDYs, wherein a first counter counts the received R_RDYs; setting a flag when a BB_SCr is received; and transmitting BB-SCr when the first counter value is zero and the flag is set. Also, R_RDYs received after BB_SCrs are counted by a second counter and transmitted when the second counter value is non-zero.

Abstract: An optical line terminal (OLT) monitors and controls communications with a plurality of optical nodes (ONs), such as optical network units (ONUs) and/or optical network terminators (ONTs), within a passive optical network (PON), such as, but not exclusively, an Ethernet-based passive optical node (EPON). A tagging mechanism is implemented to identify an origin ON that introduces a frame into the PON segment linking the origin ON with the OLT. The origin ON produces a PON tag to associate its identifier (ON_ID) to the frame. The PON tag facilitates filtering and forwarding operations, and enables the physical layer interface (PHY) to the PON segment to emulate a point-to-point and/or shared communications link. The PON tag allows a MAC control layer to create virtual ports to traffic incoming and outgoing optical signals, and supply the virtual ports to a forwarding entity for frame filtering and forwarding.

Abstract: The present invention provides a method and system for assuring H.323 alias address portability to an H.323 user in real-time H.323 multimedia communications where the H.323 user is registered with a home gatekeeper for the home zone of the H.323 user. Alias address portability may be obtained using a central database that is known to the administrative zones and is used for alias address mapping, or alternatively, may be obtained by using a distributed database. The method may be implemented by: sending, by the H.323 user, a message with a called H.323 entity's alias address, to the home gatekeeper to originate a call to the called H.323 entity; confirming that the alias address, services, and service providers are portable; converting the alias address to a called routable alias address for the called H.323 entity and sending the alias address to the H.323 user; and placing the call to the called H.323 entity.

Abstract: A multiple processor device stores a stream of data as a plurality of data segments, which includes multiplexed data fragments from at least one of a plurality of virtual channels. The data segments that comprise the stream of data correspond to the multiplexed data fragments from the virtual channels. The multiple processor device then decodes at least one data segment in accordance with one of a plurality of transmission protocols to produce a decoded data segment. The multiple processor device then stores the decoded data segment to align it in accordance with a data path segment size. The multiple processor device then interprets the stored decoded data segment with respect to a corresponding one of the plurality of virtual channels to determine a destination of the stored decoded data segment. The multiple processor device then stores the decoded data segment as part of reassembled data.

Abstract: A crossbar switch is provided that can allocate output port bandwidth both among multiple classes of service and among input ports. In one implementation, there are two scheduling stages that may be implemented together. One scheduling stage can select traffic for output based on class of service whereas the other scheduling stage may perform a further selection based on destination output port. This allows greater flexibility in managing congestion and allocating limited available bandwidth.

Abstract: There is provided a platform neutral method and system for retrieving card information in an extensible markup language (XML) format over the internet via a web service comprising the steps of formulating a simple access object protocol (SOAP) request for the selected information at a consumer application, transmitting the SOAP request to the web service over the internet, receiving the SOAP requests at a provider web service, routing the information request for card information to a provider back-end network, processing the information request and retrieving the selected card information and forwarding to the web service application, formatting the retrieved selected card information in an XML format and formulating a SOAP reply, transmitting the SOAP reply to the consumer over the internet, receiving the SOAP reply at a consumer web server application, reading the XML formatted stored value card information, and routing the XML formatted information to a consumer back-end application or end-point access dev

Abstract: A method of selecting a resource for providing a service from a set of resources on a network, using a mobile device. The method includes the steps of sending a set infrared link message by infrared communication from the mobile device, the set infrared link message including a set of network addresses corresponding to the set of resources, and receiving the set infrared link message at the resource. The method also includes the step of determining if the resource is included in the set of resources and sending a set infrared link confirmation message by infrared communication from the resource to the mobile device. The infrared link confirmation message confirms that the resource is included in the set of resources and provides a network address of the resource.

Abstract: A high-resolution, per-packet measurement tool for analyzing a computer network that operates by sending a predetermined number of packets from a sender machine to a receiver machine with measurement information inserted into the packet. The system kernel at the sending machine stamps a sequence number and the sender's local time into the data section of each packet. When packets arrive at the receiver machine, they are similarly stamped by the receiving machine's kernel with the receiving machine's local time. The maintained packet information serves as the basis for latency analysis. For example, one set of latencies can be obtained with QoS mechanisms turned on, and another set with QoS mechanisms turned off, whereby the benefits of the QoS mechanisms can be accurately determined. To analyze the latencies, the present invention normalizes each time and each latency into relative latency information. Clock skew and timer jumps may be handled as part of the normalization.

Abstract: Disclosed are a method and a device for offering a packet data service during to a handover of a user terminal from one radio network controller to another. To avoid the loss of data during SRNS relocation, there is provided a method for checking the validity of the next expected receive PDCP sequence number sent from a receiver PDCP layer with the send PDCP sequence number of the first transmitted but not yet acknowledged PDCP SDU and the send PDCP sequence number first unsent PDCP SDU of the sender PDCP layer. A PDCP protocol structure is reconstructed to support a lossless SRNS relocation in the packet service domain, and control information and operational procedure therefore are newly defined. As a result, the lossless SRNS relocation is achieved in the packet service domain and the mobility of data communication is ensured.

Abstract: A PLP transmitting method in a mobile communication system is provided. A base station determines a forward data rate according to DRC information received from a mobile station, reads out temporary EPs of a maximum total size from the buffers, determines whether the temporary EPs can be transmitted at the data rate, forms a combination of logical EPs from the temporary EPs if the temporary EPs can be transmitted at the data rate and the total size of the temporary EPs is equal to or greater than a threshold, and transmits the logical EPs in a PLP.

Abstract: A proxy in a cable modem termination system receives IP packets having an address associated with set top box out of band messages. The proxy encapsulates the packets in an Ethernet frame containing an Ethernet address. A cable modem associated with the set top box is preconfigured to detect the Ethernet encapsulated packets and pass the out of band messages in the packets to the set top box.

Abstract: To simplify a protocol structure for a packet data service in a CDMA mobile communication system, an ATM protocol is used for communication between an SGSN and a GGSN and a downlink TEID and an uplink TEID are assigned to an RNC and the GGSN and thereby, GTP tunnels are integrated into one GTP tunnel.

Abstract: The invention concerns the dynamic reservation of resources according to the RSVP protocol for transmitting an application flow in the form of first packets between a radio terminal and a remote unit interconnected via a first IP network and a cellular radio communication system. The cellular radio communication system uses a second IP network, or even a third IP network, in its core network. According to the invention, the dynamic reservation of resources in the first IP network is completed by a second dynamic reservation of resources in the second IP network, and where necessary a third dynamic reservation of resources in the third IP network. For this, transmission elements of the cellular radio communication system perform the association between the tunnel identity used for transmitting the first packets of the application flow and the parameters assigned to each RSVP session.

Abstract: A cell search method in an asynchronous mobile communication system. For cell search, a UE searches signals received from Node Bs in a slot synchronization step, calculates the timing offset of each of the Node Bs by comparing signals having slot peaks higher than a first threshold with each other among the searched signals in a frame synchronization and code group identification step, and detects the timing offsets of neighbor Node Bs by comparing the timing offsets of signals higher than a second threshold with each other in a code identification step. In addition, Node Bs that transmit signals higher than the second threshold in the code identification step are included in a candidate set and are subject to a cell search periodically.

Abstract: Methods, systems, and products are provided for establishing RFID-based telecommunications routing for a user including identifying a plurality of telephony devices available to a user, identifying the location of the plurality of telephony devices available to the user, receiving from a user routing preferences, receiving an identification of an RFID tag for the user, and associating with the user the identified telephony devices available to a user, the locations of the plurality of devices available to the user, the routing preferences, and the identification of the RFID tag.

Abstract: A reverse link controlling method in a mobile communication system. To increase or decrease a reverse data rate, an MS receives threshold power information indicating a power threshold for a pilot channel from the BS and measures the reception power of the pilot channel received from the BS. When the MS is supposed to increase or decrease the current data rate, it increases the current data rate by two levels or decreases the current data rate by one level if the pilot reception power is higher than the power threshold, and increases the current data rate by one level or decreases the current data rate by two levels if the pilot reception power is equal to lower than the power threshold.