Abstract: An automatic and network-transparent “handover convenience information support” method for a subscriber of a primary communications process in which an handover takes place—wherein this handover process can comprise arbitrary times prior or after the “actual handover”. “Convenience information support” means that this PTCP-SUBC has not necessarily requested the convenience information, but he nevertheless regards this then unasked-for support as convenient or helpful, such as for example a passenger on a flight regarding associated announcements/references/measures at the departure or arrival airport. As opposed to such often uniform measures the convenience information is as a rule individually configurable by someone affected by it.

Abstract: Methods and apparatus for RF handoff in a multi-frequency network. In an aspect, a method includes generating a content preserving handoff table that includes a current LOI and neighboring LOIs carrying at least the same wide and local content multiplexes as the current LOI, and determining that handoff conditions are met for a content preserving handoff, selecting a selected LOI from the content preserving handoff table and a selected RF channel associated with the selected LOI, and performing a handoff to the selected RF channel in the selected LOI if the selected LOI is different than the current LOI. An apparatus includes means for generating a content preserving handoff table, means for determining that handoff conditions are met for a content preserving handoff, means for selecting a selected LOI and a selected RF channel, and means for performing a handoff to the selected RF channel in the selected LOI.

Abstract: In accordance with the present invention, computer implemented methods and systems are provided for reducing handoff latency in a wireless network. In response to detecting that a handoff is necessary, the present invention uses a selective scanning algorithm that includes the use of a channel mask and/or a caching algorithm for detecting one or more new access points.

Abstract: A communication system includes a first base station for communicating complying with a first communication protocol, a second base station for communicating by using radio frames complying with a second communication protocol and transmitting synchronization signals complying with the first communication protocol, the synchronization signals synchronizing the transmitted radio frames, and a mobile terminal for communicating according to the process includes: receiving the synchronization signals from the second base station while communicating with the first base station, estimating transmitting timing of the radio frames including symbols on the basis of the received synchronization signals, measuring a receiving signal strength of the symbol on the basis of the estimated timing, and controlling a handover from the first base station to the second base station on the basis of the measurement result by the measurement of the receiving signal strength of the symbol.

Abstract: Methods and apparatus for RF handoff in a multi-frequency network include selecting an RF channel from wide and local seamless and partially seamless handoff tables. A method includes generating seamless and partially seamless handoff tables RF channels, and selecting an RF channel for a handoff so that RF channels with common wide content are given higher priority over RF channels with common local content.

Abstract: The present invention provides a method of data path switching. Embodiments of the method include transmitting a packet from a node in a communication system during hand off of a mobile node from a source access network to a target access network. The packet includes an end marker that indicates that the packet is the last packet to be transmitted during the hand off over a source link between the mobile node and an anchor node via the source access network during the hand off. Embodiments of the method also include switching, at the node, a transmission data path from the source link to a target link between the mobile node and the anchor node via the target access network following transmission of the packet including the end marker.

Abstract: Taking control of a subscriber terminal. An apparatus comprises a processor configured to cause the apparatus: to control a first stand-alone base station utilizing a first radio access technology RAT to form an emulated first RAT cell and to set parameters of the emulated first RAT cell such that the emulated first RAT cell becomes a tempting destination for a cell reselection by a subscriber terminal utilizing the first RAT; to control a second stand-alone base station such that a formed emulated second RAT cell becomes a preferred destination for a cell reselection; to control the first stand-alone base station so that the ongoing radio connection with the serving cell base station utilizing the first RAT is transferred to continue with the first stand-alone base station utilizing the first RAT; and to control the first stand-alone base station to perform inter RAT cell reselection with the subscriber terminal.

Abstract: A wireless communication system includes a plurality of base stations, a mobile wireless communication device which makes wireless communication with the base stations, a terminal device, and a router through which the base stations make communication with an IP network. The terminal device transmits an address thereof to the mobile wireless communication device, before the mobile wireless communication device makes link with one of the base stations. The terminal device fabricates a frame addressed to an address of the router, and transmits the frame to the router, after the mobile wireless communication device has made link with one of the base stations. The router transmits an address thereof to the base stations, before the mobile wireless communication device makes link with one of the base stations.

Abstract: A user is enabled to seamlessly switch between networks and/or devices, during a content delivery session. A network change detection component can determine when the user switches from one network to another. Further, a context management component is employed that stores a context state of the content delivery session on the first network when a change in network is detected. The context state is employed to seamlessly resume content delivery on the newly connected network and continue the content delivery session.

Abstract: Example embodiments provide methods for handling the transition of a mobile device from a first network to a second network, the second network operating according to a different communications protocol from the first network. One example embodiment includes terminating forwarding of the data packets from the first network to the mobile device; rebuilding headers of unforwarded data packets at the first network; and sending the rebuilt data packets from the first network to the second network. Another example embodiment includes resetting a header compression state at the second network; receiving unforwarded data packets from the first network at the second network, the unforwarded data packets being data packets the first network had not yet forwarded to the mobile device; and sending the unforwarded data packets from the second network to the mobile device.

Abstract: An apparatus and method for optimizing feedback-based radio resource management (RRM) parameters comprising establishing a communication link in a serving cell within a network; performing at least one of the following: processing a plurality of measurements received to determine viability of the servicing cell and a neighboring cell, wherein the viability determination is associated with at least one RRM parameter configured by the network, analyzing an interaction between a user equipment and the network, wherein at least one RRM parameter associated with the interaction is configured by the network, or analyzing an internal procedure performed within the user equipment wherein at least one RRM parameter of the internal procedure is configured by the network; determining whether the at least one RRM parameter configured by the network should be changed; and using a transmit data processor for sending a feedback message to the network with a change recommendation.

Abstract: Techniques for performing power control and handoff are described. In an aspect, power control (PC) is supported with multiple PC modes such as an up-down PC mode and an erasure-based PC mode. One PC mode may be selected for use. Signaling may be sent to indicate the selected PC mode. If the up-down PC mode is selected, then a base station estimates the received signal quality for a terminal and sends PC commands to direct the terminal to adjust its transmit power. If the erasure-based PC mode is selected, then the base station sends erasure indications that indicate whether codewords received from the terminal are erased or non-erased. For both PC modes, the terminal adjusts its transmit power based on the power control feedback (e.g., PC commands and/or erasure indications) to achieve a target level of performance (e.g., a target erasure rate for the codewords). The erasure indications may also be used for handoff.

Abstract: When a plurality of sectors transmit the same signal in a communication system, the same signal is transmitted after a weight is applied to the same signal. At this time, defective reception of the same signal in a terminal may be reduced by setting a weight pattern differently according to a symbol transmission time and a sector number.

Abstract: A method for interference-minimizing code assignment and system parameter selection for code division multiple access (CDMA) networks is disclosed. The method is performed at a base station or mobile station configured to operate in a CDMA radio network. The method includes receiving transmissions from user devices seeking to access the CDMA radio network. A spreading code is selected for a first user device seeking to access the network, using at least one cross-correlation parameter, to reduce multiple access interference between communications involving the first user device and other devices using the CDMA network. The method does not require knowledge of the active user codes or even the codebook from which these codes are assigned. Furthermore, it does not require knowledge of bit or chip epoch or the received powers of active users. However, the method can benefit from such knowledge in several ways, examples of which are disclosed.

Abstract: A subscriber unit for use in a multiple access spread-spectrum communication system includes a spread spectrum radio interface, responsive to a rate function signal from a base station, and first and second despreaders. The base station assigns the rate function spread-spectrum message channels and the first despreader recovers and modifies an information signal one of the spread spectrum message channels. The information channel mode is then modified for processing by the second despreader, with the second despreader supporting a different information signal rate. The subscriber unit has a capability of communicating with a dynamically changing a transmission rate of an information signal which includes multiple spread spectrum message channels.

Abstract: The channels of A-EUTRA component carriers on which the mobile station devices of EUTRA do not stand by are configured without almost changing the conventional EUTRA channel configurations. A wireless transmitting apparatus, which performs radio transmission to a plurality of wireless receiving apparatuses by assigning one or more component carriers to a downlink, includes a control channel element processing section 17 for performing, for each component carrier, processing of changing a structure of downlink control channel used to transmit control data for each wireless receiving apparatus. The control channel element processing section 17 associates the modulated symbols output from a downlink control channel processing section 16, with control channel element indexes, rearranges resource element groups constituting control channel elements, and outputs them to a multiplexing section 19.

Abstract: A method of allocating uplink radio resources to a mobile device, in which uplink and downlink timeslots are allocated, and the sum of the allocated uplink timeslots and the allocated downlink timeslots within a predetermined period is less than the total number of assigned time slots and does not exceed a predetermined maximum. The resources are allocated in a reduced transmission time interval configuration, in which an indication of the uplink timeslot allocation is received from the network in a downlink timeslot, or downlink timeslot pair, directing the mobile device to transmit only in one uplink timeslot pair.

Abstract: A method for transmission of data requires a transmitting node sending a request message identifying at least one time slot that is available for the transmitting node to transmit a data transmission to a plurality of receiving nodes, a first receiving node transmitting a first time slot grant message in response to the request message, a second receiving node transmitting a second time slot grant message in response to the request message, the transmitting node receiving the first and second time slot grant messages, the transmitting node evaluating the first and second time slot grant messages to determine at least one available time slot for transmitting, the transmitting node transmitting at least one confirmation message to the first and second receiving nodes, and the transmitting node transmitting the data transmission in the at least one available time slot identified in the at least one confirmation message.

Abstract: In one aspect, a data network is provided. The data network includes a first user and a second user, a central device, data and a spontaneous communication connection. The first and second users are each ad hoc capable. The central device provides a distribution of data such that data is transmitted from the central device to the first user. The spontaneous communication connection is established between the first and second users and the data is transmitted directly from the first user to the second user via the spontaneous communication connection.

Abstract: Devices, systems and methods may provide control of traffic streams before transition to another frequency band, during a transition and after a transition is completed and the devices are active in the other frequency band or in multiple frequency bands. The provided solution cover the transparent mode when the devices have the same Medium Access Control (MAC) addresses in both frequency bands and the non-transparent mode when at least one of the communicating devices has different MAC addresses in the different frequency bands.

Abstract: A method and apparatus for transmitting control information by an enhanced Node B (eNB) in a wireless communication system supporting Multiple-Input Multiple-Output (MIMO) technology is provided, in which at least one parameter required for initial transmission of User Equipment (UE) is transmitted through a Packet Data Control Channel (PDCCH), at least two codewords are received from the UE and then decoded, one of a plurality of indicators, related to an operation of the UE, is determined based on decoding results of at least two codewords, the determined indicator is transmitted through a Physical Hybrid ARQ indicator channel (PHICH), and at least one codeword is received that the UE generates and transmits based on the parameter required for initial transmission of the UE and the indicator related to the operation of the UE.

Abstract: Establishing a direct link connection between subscriber stations in a wireless local area network (WLAN) comprises transmitting a direct link setup discovery request from an initiating station to an access point of the WLAN for distribution to one or more other stations, the discovery request including information concerning a capability of the initiating station for a direct link setup, receiving information from a receiving station among the one or more other stations, the received information concerning the capability of the receiving station for a direct link setup, and establishing a direct link connection with the receiving station based on the received information.

Abstract: The invention relates to optimizing a data path between two communication nodes. A route optimization agent (ROA) is determined in the current network of the second communication node, preferably on the data path between the two communication nodes. Then, an IP tunnel is established between the first communication node and the ROA, the IP tunnel and the corresponding security association of said IP tunnel being based on the home address of the first communication node in its home network. The first communication node may have two IP tunnels based on the same home address, one to its home agent and one to the ROA. Corresponding routing entries and binding cache entries need to be established in the ROA and the first communication node so that all data packets between the two communication nodes are exchanged via the established IP tunnel over the ROA.

Abstract: Aspects describe conveying unicast information and broadcast information in a resource set for a transmission request. The unicast information and broadcast information can be transmitted at substantially the same time. Power control can be applied separately to the unicast information and the broadcast information for reliable decoding. A null request can be indicated by “00” bits in a unicast portion and a zero power level in the broadcast portion.

Abstract: Systems and methods for packet acknowledgement are disclosed. In one embodiment, codewords are redundantly used in order to decrease the total number of bits required for feeding back acknowledgment information or in order to increase the Euclidean space between codewords.

Abstract: Scrambling code conflicts can be mitigated by primary scrambling code reuse that minimizing a potential interference Primary scrambling codes are applied to a first set of cells located in a portion of the network being considered. A second set of cells are evaluated for primary scrambling code reuse based on a distance parameter and/or a coverage area. If the distance parameter is greater than a defined distance, primary scrambling code reuse can be applied. If all distance parameters evaluated are less than the distance parameter, a length of the distance parameter is reduced and the distance between cells is reevaluated.

Abstract: A frontend module for Time Division Duplex (TDD) with Carrier Aggregation (CA), wherein the frontend module reuses the band selection filters for the aggregated bands and provides switched connections to antenna and transmitter/receiver according to the Uplink (UL)/Downlink (DL) configuration. The use of switches on both the antenna side and the transmitter/receiver side of the frontend module enables the reuse of the band selection filters. The frontend module according to the present invention reduces the number of required filters to only one filter for each TDD-CA Component Carrier (CC) band. Thus, the frontend module avoids unnecessary band selection filters, and thereby also controls the cost of implementation of frontend modules in wireless units operating in the TDD-CA mode.

Abstract: A plurality of antennas respectively conveys burst signals that use a plurality of subcarriers and contain control information for communications. When a plurality of subcarriers are used, a cyclic time shifting in a cycle in time domain is executed, per antenna, with a time-shift amount corresponding to each of the plurality of antennas. A control unit generates the burst signals informed from the plurality of antennas by complying with this rule. The control unit generates the burst signals by varying time shift amounts corresponding respectively to the plurality of antennas.

Abstract: Techniques for synchronization of clocks in nodes in a network are described. In one example, a node times or measures a synchronization timeout period. During the synchronization timeout period, the node may hear a beacon. In that event, the node may reset its clock using a time indicator found within the beacon. If the node does not hear a beacon before the end of the synchronization timeout period, the node may send a beacon request to one of its parents. In response, the parent node will broadcast a beacon, which may be heard by other nodes in the vicinity of the parent node. Upon receipt of the beacon and an included time indicator, the node will update its clock. Upon clock update, another synchronization timeout period is then started and the cycle is repeated, thereby maintaining synchronization of the clock with clocks of other nodes.

Abstract: In order to perform synchronization and compensate clock drift among a plurality of communication devices interconnected to form a mesh communications network, all communication devices, except one given communication device, perform a first distributed consensus-based synchronization. The given communication device performs: obtaining a first correction information derived at least from a difference between a clock timing resulting from the first distributed consensus-based synchronization and a reference clock timing; and transmitting the first correction information through the mesh communications network. All the communication devices, except said given communication device, further perform updating the clock timing resulting from the first distributed consensus-based synchronization by taking into account the transmitted first correction information.

Abstract: A transmitter includes an amplitude adjustment unit multiplying an amplitude adjustment sequence value for adjusting amplitude with a synchronization channel transmitted from a base station for establishing synchronization with a mobile station.

Abstract: A method and apparatus for enabling users behind NAT devices to receive unsolicited VoIP calls by allowing the VoIP network to dynamically open a temporary tunnel between the users' VoIP endpoint and the VoIP network for the subscriber to receive call set up messages and media streams from other callers are disclosed. An unsolicited call is a call that can be originated from any calling party endpoint. Once the call is finished, the temporary tunnel will be closed.

Abstract: A system and method for selecting a path for a voice call over an access network from a plurality of access networks. The system includes a call negotiation agent configured to store price information associated with the voice call in which the price information is provided through at least one of the plurality of access networks. According to the present invention, a call negotiation server is configured to store the price information associated with a voice call and store the estimation information indicative of the quality of the access networks after the voice call through the plurality of access networks is completed. The system also performs a call negotiation with at least one network operator in real time using the price information and the estimation information and selects an access network for providing a path among the plurality of access networks.

Abstract: An embodiment of the present invention provides a method, comprising, enhancing persistent scheduling with efficient link adaptation capability by grouping Voice over internet Protocol (VoIP) users and using an intelligent bitmap mechanism to compactly represent persistent allocations for the users within the group.

Abstract: Various embodiments of the invention provide a Peer-to-Peer (P2P, Internet Protocol (IP) telephone system. The telephone system includes a plurality of terminals coupled together via an IP network. The terminals cooperate with one another to provide telephony features without a dedicated central controller such as a PBX and/or a KSU controller. The terminals may store system-wide configuration data and files referenced by the system-wide configuration data. The terminals may further determine whether the system-wide configuration data references a file that is not stored in the terminal, and requesting the file from another terminal of the telephone system in response to determining the terminal does not have a copy of the file.

Abstract: Enhanced call management services to users receiving incoming calls on extensions on a private branch exchange (PBX) is provided by an application server configured to provide call management services to at least one of the users and a protocol proxy configured to receive call information from the PBX according to a protocol for establishing call sessions. The application server is further configured to receive the call information from the protocol proxy.

Abstract: Apparatus includes a communication predelivery receiver, configured to communicate with and relay both IP addressed overhead and IP addressed payload data from an originating communication device. The communication predelivery receiver includes a screener configured to, when the communication predelivery receiver is in communication with the originating communication device, receive certain data including first IP addressed data and second IP addressed data of corresponding first and second initiated communications. The communication predelivery receiver is configured and connected within a network so the first IP addressed data and the second IP addressed data are processed differently. For the first initiated communication, the first payload data is converted, after the point in time at which the screener received the first IP addressed data, from IP addressed first payload data to another network signal.

Abstract: A gateway unit which relays communication between a call control network and a terminal having no call control function. The gateway unit includes: a session control section which substitutively performs call control processing in call control communication performed by the terminal by way of the call control network and reports a band required for the call control communication to the call control network; and a band adjustment section which determines an updated value of a band of the call control communication based on a communication packet in the call control communication, received from the terminal. The session control section reports the updated value to the call control network as the band required by the call control communication.

Abstract: A system for processing packets in a distributed architecture system includes a main control board, at least one service board, and at least one interface board. The system determines a specified CPU corresponding to a received packet; and, by the service board corresponding to the CPU, processes the received packet. The received packets are processed in the service board corresponding to the specified CPU. Therefore, the packets are evenly distributed to all service boards for being processed, the workload of the main control board is relieved, the service throughput is increased significantly, and the packet processing efficiency of the whole architecture is improved.

Abstract: Synchronization techniques for multiple clock domains from two or more clients or common pluggable interfaces connected to multiple interfaces on one or more ingress line cards to multiple interfaces on one or more egress line cards are provided. The plurality of clock domain information from the clients that are connected on the ingress side is transmitted to the egress line cards. Two or more egress interfaces generate different clocks that are synchronized to the multiple clock domains.

Abstract: In one embodiment, a converged protocol stack can be used to unify communications from a first communication protocol to a second communication protocol to provide for data transfer across a physical interconnect. This stack can be incorporated in an apparatus that includes a protocol stack for a first communication protocol including transaction and link layers, and a physical (PHY) unit coupled to the protocol stack to provide communication between the apparatus and a device coupled to the apparatus via a physical link. This PHY unit may include a physical unit circuit according to the second communication protocol. Other embodiments are described and claimed.

Abstract: A method of specifying a switching matrix over a Bene{hacek over (s)} network involves specifying a first number of ingress ports and a second number of egress ports for the matrix. Switching elements and connections between the switching elements are configured to the number of ports, and the matrix is subdivided into a plurality of sections. The switching elements and ports are moved and/or turned to obtain certain configurations, but connections are retained.

Abstract: A processor includes a plurality of processor tiles, each tile including a processor core, and an interconnection network interconnects the processor cores and enables transfer of data among the processor cores. The interconnection network has a plurality of dimensions in which an ordering of dimensions for routing data is configurable.

Abstract: A communication apparatus for performing connection type communication includes a first memory configured to store pieces of communication endpoint information relating to communication endpoints of connection, and a moving device configured to move, among the pieces of communication endpoint information stored in the first memory, communication endpoint information of connection set in a disconnection wait state, from the first memory to a second memory.

Abstract: A route computation method and system, and a path computation element (PCE) are provided.

Abstract: A method is described for accessing a virtual private network over a packet switched network. The method includes the steps of sending, by a provider edge router, network labeling information about data packet labels to a network access device using a layer 2 network protocol.

Abstract: A server associates a permitted terminal identifier that identifies a permitted terminal permitted to perform tunnel communication to a first router with an endpoint address of a tunnel used in the communication of a permitted terminal. A second router that encapsulates a packet received from a requesting terminal, which requests the tunnel communication, inquires the server about an endpoint address associated with an identifier of the requesting terminal. The server notifies the second router of the target address that is the endpoint address associated with the identifier of the requesting terminal. The second router transmits the encapsulated packet to the target address. The first router to which the target address is allocated regards a received packet received at the target address as a packet used in the tunnel communication of the permitted terminal and decapsulates the received packet and then transmits the decapsulated packet to a communication destination.

Abstract: The invention includes methods for converting between a plurality of unicast sessions and a multicast session. A method for converting from unicast sessions to a multicast session includes receiving a request for establishing a unicast session for delivering content to a first client device, generating a multicast session establishment message adapted for establishing a multicast session with the client device for delivering the content to the client device, and generating at least one multicast session join message for the other client devices, the at least one multicast session join message adapted for enabling the other client devices to join the multicast session. The multicast session establishment message is generated using a threshold number of unicast sessions. A method for converting from a multicast session to a unicast session is provided. A method for converting from a plurality of unicast sessions to a plurality of multicast sessions is provided.

Abstract: Aspects of the invention provide apparatuses, systems, and computer readable media for protecting a programmable logic controller (PLC) 201 and plant network 203 against unauthorized access and for providing robust intended communication. A communication module 211 provides only intended communication and blocks all unintended communication between the plant network and a control network/office network 205 without using external infrastructure network devices. The communication module includes an Ethernet switch 303 and ports that electrically couple the CPU module 209, a plant network, and control/office network and controls communication to the PLC and the plant network from the control/office network by forwarding packets based on configuration information 406 and 504, where the packets are received through the ports. The communication module passes packets only when the associated source address and destination address are in accordance with the configuration information.

Abstract: A network apparatus comprising a trunk end point associated with an Ethernet-tree (E-Tree) service in a network domain and configured to forward a frame that comprises a tag according to the tag in the frame, wherein the tag in the frame is a root tag that indicates a root source of the frame or a leaf tag that indicates a leaf source of the frame, and wherein the trunk end point is coupled to a second end point associated with the E-tree service outside the network domain.