Abstract: A method and apparatus for simultaneously sync hunting signals is described. In one embodiment of the invention, a computer implemented method comprises initializing a first and second subset of a set of per-alignment state machines, receiving a first and second signal, and simultaneously sync hunting the first signal with the first subset of the set of per-alignment state machines and the second signal with the second subset of the set of per-alignment state machines.

Abstract: A multicasting network route provisioning system for use in allowing an in-session multicast application to switch its path on need includes a datastore of multicast addresses operable to route multicasting traffic over different network paths. It also includes a datastore of multicasting sessions having flows of various flow patterns, wherein a flow pattern is defined in terms of a set of source and destination network nodes, and corresponds to multiple routing network paths. Further, a session management module is adapted to aggregate multicasting session flows by allocating multicast addresses to multicasting sessions based on correspondence between the network paths and flow patterns of the multicasting sessions, thereby ensuring that flow patterns corresponding to different sets of network paths do not share a same multicast address.

Abstract: A system for connecting wireless terminals to a WAP gateway and thence to the Internet for providing content to the wireless terminals from Internet web servers includes an AutoLogin proxy and an AutoLogin database associated with the WAP gateway. On an initial login of a particular terminal to a particular web server an entry is made in the AutoLogin database of the user identification, the server URL, and the user-name/password pair required for that user to log in to that server. On subsequent logins to the server the proxy retrieves the user-name/password pair from the database, thus freeing the user of the necessity to enter it for each login which might be cumbersome to do given the limited input facilities provided on wireless terminals.

Abstract: A mobile IP communication scheme for supporting a mobile computer moving over different address spaces is disclosed. A packet relay device for relaying packets having an address of the mobile computer device as a destination or source is provided at a border between a private address space and a global address space, where the packet relay device has a packet receiving unit for receiving a packet in a first format using a global address which is transmitted by the mobile computer for a location registration from a visited site managed by a global address system, and checking a content of the packet, and a packet transfer unit for transferring the packet in a second format using a private address, to a correspondent computer in a home network of the mobile computer managed by a private address system, according to the content of the packet.

Abstract: A mobile host is connected to a communication terminal through a first mobile switching center of a cellular network, a first gateway at a near end of the Internet, and a second gateway at a far end of the Internet. When the mobile host roams from an area controlled by the first mobile switching center to an area controlled by a second mobile switching center, a comparison is done between the first gateway connected to the first mobile switching center and a third gateway that is connected to the second mobile switching center. If the third gateway and the first gateway are different, the third gateway invokes a call transfer procedure to the first gateway to establish a connection between the second gateway and the third gateway, and release a connection between the first gateway and the second gateway.

Abstract: In a spanning tree-based computer network having a plurality of switches, a spanning tree can be generated and/or recovered by identifying a network core, determining a distance to the network core for each switch in the network, and generating and/or recovering a spanning tree for the network based on the switches' relative distances to the network core.

Abstract: A system and method for providing a congestion optimized address resolution protocol (ARP) for a wireless ad-hoc network. The system and method enables a node in the wireless ad-hoc network to issue an ARP request without the need to broadcast the request to all of the nodes in the wireless ad-hoc network, to thus minimize radio traffic on the wireless ad-hoc network for handling the ARP request. The node includes an address resolution protocol module which is adapted to generate an ARP request for a media access control (MAC) address corresponding to an Internet protocol (IP) address, and a transceiver which is adapted to transmit the ARP request for delivery to a broadcast server without broadcasting the ARP request to a plurality of other nodes in the wireless ad-hoc network.

Abstract: Transmission system for transmitting an MPEG-2 transport stream from a transmitter (10) to a receiver (14), provided with a return channel (16) through which the receiver (14) can transmit selection criteria for the selection of MPEG-2 sections to the transmitter (10). The transmitter (10) has a selector (38) which receives the desired criteria and then filters the sections according to these criteria before transmission.

Abstract: In general, the present invention discloses a method and an apparatus that provide a dispatch patch service in a CDMA communication system (100). A communication unit (103) involved in a dispatch call requests a base site (101) to patch a patch target (105), either a dispatch group or an individual, into the present call. By providing the CDMA long-code mask being used for the present call to the patch target and the dispatch identifier of the patch target to at least the communication unit, a new CDMA long-code mask can be generated and used for the dispatch call going forward.

Abstract: A method, comprising the steps of appending a data packet to a data stream queue (“DSQ”), the DSQ having a priority level, allocating a quantum of bandwidth to the DSQ and transmitting the data packet as a function of the priority level and the quantum of bandwidth.

Abstract: Digital broadcasting for transmitting program data including at least one of digital audio data and digital video data with other information is carried out by using terrestrial waves. The program data, download data corresponding to contents of the program data, and reference information correlating the download data with the program data are multiplexing with each other. The multiplexing signals are transmitted over a specific frequency band.

Abstract: A group of network devices, such as Ethernet switches, are logically configured as a single cluster, with one commander device and one or more member devices. Each network device in the cluster contains an embedded HTML server that facilitates configuration and management of the network device via a management station running a Web browser. Each device in the cluster is identified by a unique Universal Resource Locator (“URL”). However, only the cluster commander is required to have a public IP address. The cluster commander automatically assigns private IP addresses to the other devices in the cluster. Network devices in the cluster constantly monitor network traffic on all their ports to detect conflicts between the automatically assigned IP addresses and the IP addresses of network devices outside of the cluster. When a conflict is detected, the cluster commander assigns a different private IP address to the cluster network device that caused the conflict.

Abstract: A system and method of accessing radio programming from radio stations that communicate radio programming on a data network. The radio programming is accessed as radio or audio signals formatted in radio-over-data packets to a data network telephone. The data network telephone is a telephone that uses voice-over-data communications channels over a data network to make telephone connections with other data network telephones. The data network telephone includes a display, a keypad, a handset and an optional speaker output. The data network telephone advantageously permits simultaneous access to radio programming and communication on a telephone connection. The data network telephone also includes an interface to a portable information device. A radio control application may be used on the portable information device that communicates control information to a radio application on the data network telephone.

Abstract: A method for estimating end-to-end quality of service (QOS), such as packet loss, delay, and delay jitter, in a packet-switched communications network includes steps for calculating packet loss and packet delay each router output link in a network path and using the packet loss and packet delay calculations for each individual router output link to estimate end-to-end QOS. The method includes calculating the loss probability for all possible numbers of active sources to take into account changes in the number of active sources as active sources connect to and disconnect from the network. As a result, the inventive method allows the number of active sources to vary in its estimation of end-to-end packet loss, delay, and delay jitter for enhanced Internet Protocol network planning.

Abstract: The invention relates to a method for use in a telecommunication system to generate an acceptance decision during a decision cycle that comprises whether to accept an incoming packet of a data stream or not in a buffer (BUF). The incoming packet (P) has a drop priority (DP) being one of a plurality of arranged drop priorities. The method comprises determining for a drop priority parameter (DPP) an actual drop priority parameter value (DPPact) out of the plurality of drop priorities; and comparing the drop priority parameter (DPP) with the drop priority (DP) of the packet (P) in order to generate the acceptance decision.

Abstract: Resource requests from a plurality of schedulable entities are scheduled while limiting the maximum and minimum quality of service allocated to each schedulable entity. The resource scheduler of the present invention requires less memory maintain state information than existing rate-controlling schedulers, and is thus more easily scalable to large numbers of users. The resource scheduler also schedules resources fairly among competing schedulable entities. A fair-share scheduling algorithm is used by a resource scheduler to select resource requests to service. A rate controller checks to ensure that servicing the selected request will not cause the associated user's maximum quality of service to be exceeded. If the maximum quality of service will not be exceeded, the virtual time used in the scheduling algorithm is incremented, and the request is serviced. If the maximum quality of service will be exceeded, the virtual time is still incremented, but the request is not serviced and remains pending.

Abstract: In an IP-based cellular telecommunications network, such as for example in a Code Division Multiple Access (CDMA) 2000 cellular telecommunications network, a method, a system and a Packet Data Serving Node (PDSN) for registering a Mobile Node (MN) with the PDSN. Once a Point-to-Point Protocol (PPP) connection is established between the MN and the PDSN, a PPP timer is started, the PPP timer being set to expire after a predetermined period of time. A Mobile Internet Protocol (MIP) registration takes place between the MN and the PDSN. The PDSN detects if the MIP registration is successful and if so, resets the PPP timer to a substantially higher value and the PPP session continues until one of the involved parties terminates it. If the MIP registration is not successful, the PDSN further detects if a new MIP registration request is received before the expiration of the predefined period of time, and if so, the PDSN resets the PPP timer again to the predefined period of time.

Abstract: CDMA base-station comprising a transmit stage (2, 4, 7, 9, 10, 11, 12) and a receive stage (3, 5, 8, 13) for communicating with mobile terminals has been provided. The transmit stage comprises a multi carrier power amplifier having at least two independent power modules (10, 11) for transmitting signals on at least one traffic channel (TCH) and control and pilot signals on at least one control channel (CCH). Each power module (10, 11) is capable of being operational although the other power module is non-operational. The at least two power modules are normally operating simultaneously and each is contributing with emitting power. The CDMA base station moreover comprises a control module (16) monitoring the error status of the power modules in the base station.

Abstract: A real-time communications system for decentralized management is accomplished which was not implemented conventionally. To achieve this, the following techniques are employed: (1) Overtaking of communication packets based on priority; (2) Path control based on the priority; and (3) Priority change at each node. When carrying out real-time communication between a plurality of information processors, each communication node (information processor) carries out overtaking of the communication packets in accordance with the priority. In the course of this, each communication node can change the priority, and establish different paths for each of the priority.

Abstract: The present invention provides a method and apparatus for re-sequencing data packets received from multiple devices in a packet-based digital communication system. A set of data packets is received by a data packet sequencer. Each data packet includes an indicator of the originator of the data packet. The data packet sequencer stores the set of data packets, preferably in an input buffer. The data packet sequencer reorders the data packets by retrieving a first data packet and determining the originator of the first data packet. The data packet sequencer then transmits all data packets that were originated by a first originator of the first data packet prior to transmitting data packets that were not originated by the first originator.