Abstract: A network having distribution of access point loading includes access points to which mobile stations can associate themselves based upon access point beacon signal levels and loading levels for the various access points. A mobile station receives beacon signals from various access points and determines a signal strength for the received beacon signals. The mobile station also receives access point loading information from the access points. The mobile station associates with an access point based upon the access point beacon signal strengths and the access point loading information.

Abstract: A center access point (34) is connected to a wired local network. One or more remote access points (36, 38) communicate with the center access point (34) via associated cables (62, 64, 66, 68). A plurality of mobile wireless units (121, 122, . . . , 12n) is located within an access point network (14) of the wireless local area network (10), each mobile wireless unit (121, 122, . . . , 12n) is configured to transceive with at least one of the center access point and one of the remote access points (36, 38).

Abstract: Briefly, a wireless communication device that includes a processor to enable a determined number of receivers of a MIMO system according to a value provided with a request to enable the receivers is provided. A method for enabling the receivers of MIMO system is also provided.

Abstract: A roaming service method for a fast and secure wireless network is provided. In an embodiment of the present invention, an AP, which an STA associates with, transmits proactive keys needed for roaming to neighbor APs of the AP. When the STA moves to one of the neighbor APs, a reassociation is carried out between the STA and the neighbor AP using the already provided proactive key. In another embodiment of the present invention, an authentication server transmits proactive keys needed for roaming to neighbor APs to which the STA is likely to move, so that when the STA moves to one of the neighbor APs, a reassociation is carried out between the STA and the neighbor AP using the already provided proactive key.

Abstract: A method for accessing a network in a telecommunication system which comprises at least one terminal and a plurality of networks in which information sets describing settings needed to access networks and their resources are stored in the terminal. The terminal scans for information about available networks. Available information sets are determined by comparing the information about available networks to the stored information sets. At least one network is accessed based on the settings defined in the available information sets.

Abstract: Embodiments of the invention facilitate providing wireless links with longer link ranges and/or better suppression of interference than can be provided by the integrated antennas of a typical wireless network node. While, in some cases, it is possible to install intermediate wireless network nodes to hop through long expanses between distant wireless network nodes, it is desirable for distantly spaced wireless network nodes to reach one another through a single transit link (i.e. one hop). This approach is preferable because a single transit link is capable of higher data rates and better interference suppression than multi-hop transit links. The present invention provides methods and apparatus for enhancing the link range achievable by typical wireless network nodes so that distantly spaced wireless network nodes are able to communicate with one another using only a single-transit link.

Abstract: The present invention relates to a control method for re-access after the terminal in the trunking system exits the group call, which includes the following steps: it is to maintain one message number for every group call for updating and send the message number to the terminal when the call is established, and the terminal retains the message number after accessing the call; the terminal sets the exit symbol as “unable to passively access” when it exits the call normally, and as “able to passively access” when it exits the call abnormally; after the terminal has received periodically transmitted paging message in its idle state, it judges whether the exit symbol of the corresponding group is the type of “able to passively access”, if yes, it accesses the call and then the procedure end; if the exit symbol is “unable to passively access”, then the terminal judges whether the message number retained in the group is the same as the message number in the paging message, if not, it accesses the call, otherwise di

Abstract: A method is described for the provisioning of latency-tolerant services in an access network. The method comprises the steps of: setting a demand to provide a service to a user; determining the network resources required to provide this service; establishing based upon the resources required to provide that service, the available network resources and/or the network's service provisioning policy, whether the provisioning of this service shall be immediately effected or be postponed to a later stage. If it has been established that the service will be provided at a later stage, it will be provided at a time when the available resources and/or the network's service provisioning policy match that of the resources required for the provisioning of the service.

Abstract: The present invention discloses a method and apparatus for implementing matched filter in a system using QPSK modulation. In the present invention, a multiplier is changed as a multiplexer by using the characteristic of the pilot sequence (or training sequence) so as to implement the matched filter.

Abstract: A basestation, for example a femtocell basestation for use in a mobile communications network, has a frequency synthesizer, for generating signals at desired frequencies, and also has a wireless communications interface, for transmitting and receiving signals in the mobile communications network. The femtocell basestation also has a packet data interface, for transmitting and receiving packet data signals over a wide area network.

Abstract: The present invention provides a broadcast channel signal and apparatus for managing the transmission and receipt of broadcast channel information, where a known difference in the data prior to encoding for transmission produces a predictable difference, which can be removed or cancelled from the multiple received active frames, such that their differences can be negated prior to combining and subsequently decoding. In at least one embodiment one or more applied linear encoding techniques can allow for a predictable difference in the encoded values based upon a knowledge of the difference prior to encoding.

Abstract: A base station for use in a mobile communications network may include a frequency synthesizer for generating signals at desired frequencies and a packet data interface for transmitting and receiving packet data signals over a wide area network. The basestation is adapted to determine an elapsed time since it last synchronized the frequency synthesizer to a master device. The basestation is also adapted to request synchronization packet data signals from the master device when the elapsed time exceeds a predetermined holdover period.

Abstract: A multi-radio meshed node is provided which includes a first radio module, a second radio module, and a single routing manager module that is common to or shared by the first radio module and the second radio module. The multi-radio meshed node has a node MAC address associated therewith which uniquely identifies the multi-radio meshed node. The first radio module includes a first interface. The second radio module is designed to communicate simultaneously when the first radio module is communicating. The second radio module includes a second interface. The first radio module has a first interface MAC address associated therewith, and the second radio module has a second interface MAC address associated therewith. The single routing manager module determines which one of the first interface and the second interface is to be used for routing of a particular packet.

Abstract: In a mobile communication system including a circuit-switched (CS) mobile communications network, a packet-switched (PS) mobile communications network and an interworking function adapted to enable a signaling exchange between the CS and PS mobile communications network, a method of providing combinational CS+PS services to mobile users includes receiving, at a serving network entity in the PS mobile communications network, a user request issued from a first user on the PS mobile communications network, the user request relating to combinational services and having the serving network entity managing the received request, wherein the managing of the received request includes controlling an establishment of a session in the CS mobile communication network through the interworking function.

Abstract: A system for deploying Voice over Internet Protocol (VoIP) services is provided. A system that incorporates teachings of the present disclosure may include, for example, a Call Session Control Function (CSCF) having a controller element to receive a Session Initiation Protocol (SIP)message from an originating communication device requesting communications with a terminating communication device, and establish an Internet Protocol (IP) connection between the originating communication device and an advertisement media system to present at the originating communication device an advertisement message that replaces a ringback tone associated with the terminating communication device. Additional embodiments are disclosed.

Abstract: Methods and apparatus to provide a call-associated content service to voice over Internet protocol (VoIP) devices are disclosed. An example method comprises receiving a message comprising a uniform resource identifier (URI) and a call dialog parameter at a content mediator, the call dialog parameter associated with a first communication session between a voice over Internet protocol (VoIP) endpoint and a destination, establishing a second communication session from the mediator to the destination based on the URI and the call dialog parameter, receiving content associated with the first communication session via the second communication session, and providing the content to the VoIP endpoint.

Abstract: A system and method for distributed processing in an Internet Protocol network is provided. A system that incorporates teachings of the present disclosure may include, for example, an application server can have a controller element to receive a Session Initiation Protocol (SIP) INVITE message from a communication device, establish a Real Time Protocol (RTP) channel between the communication device and the application server responsive to the SIP INVITE message, and submit a SIP SUBSCRIBE message to an intermediate communication node (ICN) directing the ICN to engage one or more Digital Signal Processing (DSP) resources for processing signals in the RTP channel. Additional embodiments are disclosed.

Abstract: A Tamper-Resistant Communication layer (TRC) adapted to mitigate ad hoc network attacks launched by malicious nodes is presented. One embodiment of the invention utilizes TRC, which is a lean communication layer placed between a network layer and the link layer of a network protocol stack. All aspects of the network protocol stack, with the exception of the routing protocol and data packet forwarding mechanism in the network layer, are unchanged. TRC takes charge of certain key functions of a routing protocol in order to minimize network attacks. Additionally, TRC implements highly accurate self-monitoring and reporting functionality that can be used by nodes in the network to detect compromised nodes. TRC of a node controls its ability to communicate with other nodes by providing non-repudiation of communications. The tamper-resistant nature of TRC provides high assurance that it cannot be bypassed or compromised.

Abstract: A method in one example has: implementing an incoming voice call routing preference in a telecommunication system, routing bias settings for incoming packet calls and incoming circuit calls being set for any candidate trunk group lists as per desired call routing preferences; and selecting one of packet routing and a non-packet routing for call routing, the candidate trunk group lists for individual routing destinations being updated to indicate if packet voice technology is to be used for call delivery, wherein if packet voice technology is preferred, then a packet core access trunk group is added to a front of a respective trunk group list, and wherein if packet voice technology is to be used only if no circuit trunks are available, then packet core access trunk groups are added at an end of the list.

Abstract: VoIP networks and methods are disclosed for configuring SIP endpoints of VoIP networks. An application server of a VoIP network identifies an endpoint configuration for the SIP endpoints, and generates a configuration command based on the endpoint configuration. The application server formats a SIP message to include the configuration command, and transmits the SIP message to the SIP endpoints. Responsive to receiving the SIP message, the SIP endpoints process the SIP message to identify the configuration command, and set local configuration parameters based on the configuration command.

Abstract: A method and apparatus for securely registering an association between a computer terminal and a selected one of a plurality of communications terminals in a computer telephony system. An association is established according to a known technique between the identity of the selected communications terminal and the identity of the computer terminal to allow for control of the communications terminal by a user via the computer terminal. An abstract representation of the identity of the communications terminal is; generated and provided to a third party system accessible by the user. The user can then implement control of the selected communications terminal via the third party system whilst not prejudicing the security of the system.

Abstract: A method for managing communication terminal device includes sending a device management command which includes a control instruction for an activity state of a designated function, to a terminal; and performing, by the terminal, an operation on the activity state of the designated function according to the control instruction. The invention further provides a corresponding communication terminal and system. Using the present invention may avoid running the service client-end function in the communication terminal all the time, saving electric energy or terminal resources.

Abstract: A system and method for enabling communication concurrently over multiple access points and multiple physical media including but not limited to: cellular, network (e.g., Ethernet), broadband wireless, audio communication schemes.

Abstract: Certain exemplary embodiments can comprise a method of use comprising: for a call between a local IP network and a remote non-IP network, converting between IP packets and PCM robbed bit signaling via a VoIP channelized router; providing the PCM robbed bit signaling to a TDM switch via the VoIP channelized router; and/or converting between IP packets and GR303 call reference values via the VoIP channelized router.

Abstract: The invention relates to an arrangement for implementing voice transmission using a subscriber line of a public switched telephone network in a system having a concentrator network part connected to the subscriber line for connecting a plurality of subscriber lines to a data transmission network. The concentrator network part includes voice traffic processing equipment, which are arranged to perform a conversion between analog voice signals of the subscriber lines and IP voice packets. It further includes transceiver and multiplexing equipment for transmitting and receiving data transferred over analog subscriber lines, and packet traffic switching equipment, which are arranged to receive and transmit packets between the voice traffic processing equipment and a core network and between the transceiver and multiplexing equipment and a core network.

Abstract: Systems and methods for reducing signaling traffic in the provision of data services to a plurality of user endpoints (UEs). The UEs are in communication with a radio access network, which is the in communication with an IP multimedia subsystem (IMS) core for providing data service to the UEs, the data service including a videoshare service. The systems and methods involve providing an application server (AS) that during operation communicates with the IMS core and serves as a data service registrar for the UEs, and providing logic in the AS configured to receive from a first UE of the plurality of UEs videoshare capabilities information of the first UE, cache the first UE videoshare capabilities information and send to a second UE of the plurality of UEs the cached first UE videoshare capabilities information.

Abstract: Tools and techniques are provided to provide Voice-over-IP (VoIP) communications. On receiving a user request to initiate a telephonic connection from a local site, at which the user is using a VoIP telecommunication device which has no link failover functionality, a system establishes over wide area network links at least two tunnels between a controller at the local site and another controller. Then the system transmits VoIP traffic over at least one of the tunnels from the controller at the local site to the other controller. The system also detects failure of the primary tunnel during the call and performs failover by changing a data path during the call to transmit packets over at least one non-failed tunnel.

Abstract: A method and computing system for controlling access by a user to a computing resource located in respective source and destination domains in a hierarchy of domains. The method comprises establishing a path of domains in the hierarchy from the source domain to the destination domain, specifying for at least one domain in the path preceding the destination domain whether traversal to a successive domain in the path is permitted, and providing to the user access to the computing resource if traversal from the source domain to the destination domain along the path is permitted.

Abstract: Systems and methods for efficient transmission of packets within a network communication device are described herein. Some illustrative embodiments include a network communication device that includes a plurality of ports (each port configured to communicate with one or more network devices), and a bus coupling the plurality of ports to each other (the bus providing a shared path for one or more bus transfers originated by a first port of the plurality of ports, and the one or more bus transfers including information). The bus includes a plurality of port map bits, a port map bit of said plurality of port map bits corresponding to a second port of the plurality of ports. The second port is configured to forward the information to the one or more network devices if the port map bit is asserted.

Abstract: The selection of the spatial mode together with modulation and encoding schemes based on channel condition measurements requested from MS forms a basis for selecting a best transmission data rate in a wireless link in every channel conditions. A method and network element comprising multiple-input multiple-output (MIMO) capable antenna technology allows the use of a best transmission data rate in the channel if selection of transmission mode has been made correctly. The thresholds for transmission mode selections are pre-determined and compared to instantaneous channel quality information. The practical MIMO solution based on correct selection procedure provides also continuous sufficient channel condition for terminal users when the user moves from LOS situation to NLOS situation.

Abstract: A packet switch that scales gracefully from a capacity of a fraction of a terabit per second to thousands of terabits per second is disclosed. The packet switch comprises edge nodes interconnected by independent switch units. The switch units are arranged in a matrix having multiple rows and multiple columns and may comprise instantaneous or latent space switches. Each edge node has a channel to a switch unit in each column and a channel from each switch unit in a selected column. A simple path traversing only one of the switch units may be established from each edge node to each other edge node. Where needed, a compound path comprising at most two simple paths may be established for any edge-node pair. In a preferred configuration, the switch units connect at input to orthogonal sets of edge nodes. A distributed control system expedites connection-request processing.

Abstract: A switching node comprises edge nodes interconnected by independent switch units. The switch units are arranged in at least one switch plane and the switch units of each switch plane are arranged in a matrix having several rows and several columns. Each edge node has a channel to a switch unit in each column in each switch plane and a channel from each switch unit in a selected column in each switch plane. Simple paths, each traversing only one switch unit in a switch plane, may be established for any directed edge-node pair. Additionally, several non-intersecting compound paths, each comprising at most two simple paths, may be established for any edge-node pair. A significant proportion of traffic may be routed through simple paths. The switching node employs distributed control scheme and scales gracefully from a capacity of a fraction of a terabit per second to thousands of terabits per second.

Abstract: New methods and devices for implementing an ARQ mechanism over a multi-hop connection (sender-relay-receiver) are proposed. A communication protocol is described in accordance with which data units are arranged in a sequence and each sent data unit is identifiable by a sequence position identifier. The sender implements a sending peer, the relay a relay peer and the receiver a receiving peer. Feedback messages are exchanged, which using said sequence position identifiers, carry information on a receipt of sent data units. The communication protocol provides for at least a first type and a second type of receipt information, the first type (RACK) of receipt information being indicative of a correct receipt of a data unit at a relay peer of said communication protocol, and the second type (ACK) of receipt information being indicative of a correct receipt of a data unit at a final destination peer of said communication protocol.

Abstract: There is described a system for switching from an established media path to a new media path for packets transmitted between first and second end points in a packet based network. An instruction is transmitted to the first end point instructing it to set up a new receiving channel for receiving packets transmitted from the second end point over the new media path. An instruction is transmitted to the second end point instructing it to configure a sending channel to send packets over the new media path for reception on the new receiving channel of the first end point. For a time period during the switching, the first end point monitors for packets simultaneously on both its new receiving channel and an established receiving channel configured to receive packets transmitted from the second end point over the established media path. This systems helps ensure a seamless switchover from the established to the new media paths.

Abstract: In an embodiment, a care-of address associated with a first node coupled to a communications network via an access node is received. The care-of address may be contained in a notification message sent by a home agent associated with the first node or by a binding update message sent by the first agent. The access node is identified using the care-of address. A request to tap communications associated with the first node at the access node is generated and the request is forwarded to the access node to cause communications associated with the first node to be tapped at the access node.

Abstract: Method and apparatus for establishing direct IP bi-directional or unidirectional connectivity between communication devices (6,24), accommodating the circumstance of either or both communication devices residing behind a Network Address Translator (NAT). When a communication device requests IP connectivity to another communication device, either the local or remote communication device's associated service node (26,28) or their agents (41,42) (or another node 29, using information collected by the devices' associated service nodes), formulates an appropriate direct IP pathway (40) to traverse any pertinent NATs and instructs the applicable communication devices (30,32,34,44,45,46,47) to self-configure to establish the pathway (40).

Abstract: Systems and methods are provided for automatically determining certain physical characteristics of a network device. In one embodiment, a method is employed to automatically determine the physical location of a network device. This method may employ a computer based system to acquire network device information, instruct the network devices to change power consumption, detect the changes and determine the physical location of the network device based on the changes detected. In another embodiment, a method is employed to automatically determine the functional type of a network device. This method may employ a computer based system to monitor the power drawn by the network device at a power distribution device and determine the network device functional type based on the power drawn.

Abstract: FEC frame synchronization in a DAB-IP system comprising FEC frames includes receiving FEC packets each comprising a FEC packet header and a FEC data field comprising padding bytes at an end of a last FEC packet received; comparing a received FEC packet header with a known FEC packet header until a number of bit errors in the received FEC packet header is less than or equal to a predetermined amount; and matching the received FEC packet header and the padding bytes until at least one of the following actions occur thereby resulting in receiver locking: a number of successive FEC packet headers mismatches in the received FEC packet header; a predetermined number of FEC packets end without padding matching; and FEC packet header and padding matching occurs. The received FEC packets are tracked after receiver locking has occurred to ensure FEC parity packets are positioned properly in the FEC frames.

Abstract: A switching unit in an IP multimedia subsystem includes at least one operator service list. A new service and/or a modification in an existing service is configurable in the at least one operator service list by means of an administration unit. The services configured in the at least one operator service list for a user registering in the switching unit is applicable to the user.

Abstract: A method of providing switch arbitration for the passing of packets between transmitters and receivers in a switch having a plurality of transmitters and receivers, comprises globally distributing information about buffer contents and packet requests between transmitters and receivers.

Abstract: A switch system comprises a switch matrix providing a configurable, protocol agnostic, packet switching core, the switch matrix providing a non-blocking switch connecting a configurable number of ports together.

Abstract: The present invention is a method of doing business over a network that: receives a request for transmitting digital information after a start time and before an end time, determines the time required to transmit the digital information based on the number of packets in the information and the network speed, schedules a transmit time for the digital information, and accepts the digital information for transmission only if the time required to transmit is less than or equal to the difference between the transmit time and the end time. Pricing of the transmission can be determined by the priority of transmission, whether the information is transmitted the first time or rescheduled, and whether the user receives an acknowledgment.

Abstract: A system for reducing latency in a host Ethernet adapter (HEA) includes the following. First, the HEA receives a packet with an internet protocol (IP) header and data in the HEA. The HEA parses a connection identifier from the IP header and accesses a negative cache in the HEA to determine if the connection identifier is not in a memory external to the HEA. The HEA applies a default treatment to the packet if the connection identifier is not in the memory, thereby reducing latency by decreasing access to the memory.

Abstract: Systems and methods for managing connections among nodes in a communication network are provided. The method comprises determining one or more topics of interest for a first node in the network, selecting a second node in the network that shares at least a first topic of interest with the first node, establishing a connection between the first node and the second node so that the second node covers at least the first topic of interest, and establishing additional connections between the first node and at least a third node in the network that covers at least the first topic of interest, in response to determining that the first node is not covered by a total of K nodes with respect to the first topic of interest. Preferably, the communication network is a publish/subscribe network.

Abstract: A unicast/multicast system has an internal cell generating section that generates an internal cell to include its output index information based on user data, and an output port conversion table that stores the relation of output index information and output port number for the internal cell in the form of one-to-one for the unicast and one-to-multiple for the multicast.

Abstract: Provided is a method of creating an address forwarding table in an Ethernet ring network. The method includes the steps of: broadcasting, at each Ethernet node, a ring learning frame having information for measuring cost in the frame's payload in both directions; and receiving, at each Ethernet node, two ring learning frames transferred from different Ethernet nodes and recording a ring learning frame containing information having the minimum cost in the Ethernet node's address forwarding table. Accordingly, by creating an intelligent address forwarding table, it is possible to efficiently prevent a loop without conventionally using a closed loop, and to rapidly transfer a frame through an optimal path.

Abstract: A communication apparatus which receives data including a destination address from an external apparatus, changes the destination address included in the received data to an address of the communication apparatus, and sends the data whose destination address was changed to an address of the communication apparatus.

Abstract: A multiprotocol label switching (MPLS) packet is processed by receiving an MPLS packet that has first header information including at least a first MPLS label at a first MPLS network node. A translation system is operated to obtain second header information that includes at least a second MPLS label. The MPLS packet is modified with the second header information. The MPLS packet is routed to a second MPLS network node based on the second header information.

Abstract: A method and apparatus for requesting bandwidth allocation and allocating a bandwidth in response to the request in a communication system are provided, in which an mobile station detects a second CID requiring bandwidth allocation, the second CID being different from a first CID included in a MAC header, generates a grant management subheader including an order field and a bandwidth field, the order field being for writing a rank of the second CID in a CID list listing CIDs of the mobile station according to a predetermined criterion and the bandwidth field being for writing a bandwidth required for the second CID, concatenates the grant management subheader to the MAC header, and transmits the concatenated MAC header and grant management subheader to a base station to request bandwidth allocation for the second CID.

Abstract: This invention further features a method of apportioning channels in a programmable multi-source, multi-destination system, the method including determining the source for each channel by: a) computing the sum of the number of channels carried by the current and all preceding sources, b) computing a source identifier for each channel based on the computed sum of the number of channels carried by the current and all preceding sources, determining which section of the source the channel is located based on the computed source identifier, and determining the destination for each channel by: a) computing the sum of the number of channels carried by the current and all preceding destinations, and b) computing a destination identifier of the first channel sent to each destination based on the computed sum of the number of channels carried by the current and all preceding destinations.