Abstract: The present invention can improve a reception quality of mobile stations and utilize radio resources effectively, by resolving the problem caused when the conventional multicast communications system. The present invention relates to a radio communications system for transmitting same data to a plurality of cells via at least one base station and performing a soft combining or a selective combining on the same data received by a mobile station. The radio communications system includes a controlling unit configured to set up a cycle at which synchronization processing on transmission timing of the same data among the plurality of cells is performed, or an accuracy by which the synchronization processing is performed, for each control apparatus which performs the synchronization processing.

Abstract: An intermediate service provider operates to mediate communications between mobile terminals and various service providers. In one embodiment, the intermediate service provider and a given mobile terminal establish a persistent session supported by a logical communication channel that is used to convey communications for all of the various service applications implemented by the mobile terminal, i.e., a single, multiplexed channel. In another embodiment, common command subsystems are used to support the multiple service applications, thereby reducing overhead resulting from multiple protocol headers. In yet another embodiment, establishment of communications with various service providers begins with a single connection request message that specifies at least two selected service applications such that the intermediate service provider can establish communications with the multiple service providers in response to the single connection request message.

Abstract: A method, a wireless communication system, a tangible machine-readable medium, and a communication apparatus for transmitting downlink hybrid automatic repeat request (HARQ) packets based on a multi-hop relay standard are provided. The wireless communication system comprises a BS, an SS, and a plurality of RSs. The BS transmits a plurality of first downlink HARQ packets to the RSs. After receiving one of the first downlink HARQ packets, at least one of the RSs replies a first ACK to the BS and retrieves a second downlink HARQ packet in the first downlink HARQ packet. Then, the at least one of the RSs transmits the second downlink HARQ packet to the SS. And the second downlink HARQ packet is the same as a part of one of the first downlink HARQ packets.

Abstract: A relay station, a transmission method, and a tangible machine-readable medium thereof for use in a multi-hop network are provided. The relay station comprises a receiving module, a decoding module, and a transmission module. The receiving module is configured to receive a frame, the frame comprising an extended information element corresponding to the relay station. The decoding module is configured to decode the extended information element to derive at least one message. The transmission module is configured to transmit a burst according to the at least one message.

Abstract: A scalable subscriber terminal for bi-directional communication with a gateway through one or more satellites is provided according to another embodiment of the invention. The scalable subscriber terminal may comprise a plurality of antennas and be configured to operate in at least a first communication mode prior to switching to a second communication mode. The first communication mode may comprise communicating with the gateway through a first satellite. The second communication mode may include communicating with the gateway through the first satellite and a second transceiver. The scalable subscriber terminal may download MIMO operational firmware from the gateway through the first satellite prior to switching to the second communication mode. The first communication mode may be a SISO or SIMO mode. The second communication mode may be a MISO or MIMO mode. The second transceiver may be a second satellite or a terrestrial repeater.

Abstract: A communication network including at least one piece of communication management equipment (SG) having a management component (MG) in charge of generating reference signals to be transmitted in a signaling channel to communication terminals (UE) connected thereto, and provided, along with each of the terminals (LIE), with an internal time reference which is defined in relation to a time set of a satellite positioning system (CS). The management component (MG) is also configured in such a way as to be able to generate a message including information representing the time of transmission of a reference signal in relation to the time set with a view to the transmission thereof to the terminals (UE) in a signaling channel.

Abstract: The ad-hoc network includes a plurality of mobile nodes including at least one group of mobile nodes operating as a cluster with a currently elected cluster head node. The mobile nodes include a controller and a wireless communications device cooperating therewith to determine whether the currently elected cluster head node appears inactive and then initiate a token-based cluster head node election based thereon.

Abstract: A method, a wireless communication system, a tangible machine-readable medium, and a communication apparatus for transmitting uplink hybrid automatic repeat request (HARQ) packets based on a multi-hop relay standard are provided. The wireless communication system comprises a BS, an SS, and a plurality of RSs. The RS transmits a plurality of first uplink HARQ packets to the RSs. After receiving one of the first uplink HARQ packets, at least one of the RSs replies a first ACK to the BS and retrieves a second uplink HARQ packet in the first uplink HARQ packet. Then, the at least one of the RSs transmits the second uplink HARQ packet to the BS. And the second uplink HARQ packet is the same as a part of one of the first uplink HARQ packets.

Abstract: A duplicate detection method is disclosed for reducing redundant traffic in an ad hoc network. The duplicate detection method of the present invention includes receiving a first packet having a content identifier and a subcontent identifier, storing the content identifier and the subcontent identifier of the first packet, receiving a second packet, extracting a content identifier from the second packet, determining whether the content identifiers of the first and second packets are identical, extracting, when the content identifiers are identical, a subcontent identifier from the second packet, determining whether the subcontent identifiers of the first and second packets are identical, determining, when the subcontent identifiers of the first and second packets are identical, the second packet is a duplicate of the first packet.

Abstract: The object of the present invention is to achieve reduction of interference between cells and improvement of maximum throughput so as to improve spectrum efficiency.

Abstract: Disclosed is a method for adaptive delay threshold-based priority queueing for packet scheduling in a mobile broadband wireless access system, which corresponds to a resource allocation method capable of satisfying Quality of Service (QoS) requested by realtime and non-realtime users in a mobile communication environment, and simultaneously maximizing the capacity of the mobile broadband wireless access system.

Abstract: Method and apparatus for a channel sensitive scheduler for scheduling transmissions in a communication system. The scheduler is defined by a priority function of the channel condition as determined by amount of transmission power needed by a mobile station. In one embodiment the channel condition is determined based on the transmission pilot power of each mobile station and is used to calculate a priority value for each mobile station. The mobile stations are then scheduled to transmit based on the priority value.

Abstract: A hand-off controller for use in a system including an application server, the application server being connected to a mobile device via a first network connection to conduct an application session involving data communications between the application server and the mobile device.

Abstract: In a communication system in which a gateway entity is linked to a plurality of infrastructure entities which in turn are operable to communicate with an access terminal, the access terminal needs first to establish a data attachment point (DAP) with one of the infrastructure entities. Handoff of the DAP from one infrastructure entity to another infrastructure entity is initiated by the access terminal. The access terminal weighs factors such as the link conditions with the various infrastructure entities, the time since the last DAP handoff, and time duration communicating with the current infrastructure entity before proceeding with the DAP handoff.

Abstract: A method for effectively relocating a traffic transmission path when a mobile terminal changes a gateway for a traffic transmission that may include: when a mobile terminal performs handover from a first radio network node to a second radio network node, determining a gateway for processing traffic most suitable for the second radio network node; changing a traffic transmission path to the determined gateway; and transmitting, by a traffic transmission node, traffic to the second radio network node through the changed traffic transmission path.

Abstract: A reception quality estimating method estimates reception quality of a wireless communication area for estimating success or failure of handover processing occurring in a service area of a wireless communication system including a plurality of base stations. The method includes a first step and a second step. In the first step, the reception qualities of radio waves from the plurality of base stations are grasped at a given location within the service area. In the second step, the start point and end point of the handover processing are estimated by referring to time required for the handover processing, moving speed of a mobile terminal, which are previously input, and the reception qualities, and then success or failure of the handover processing is estimated by referring to the reception qualities of radio waves from the base stations at the start point and end point of the handover processing.

Abstract: A method and apparatus for providing a mobile service with the use of a code pattern is disclosed In one embodiment, the method comprising: taking a photograph of a code pattern image, decoding the photographed code pattern image so as to obtain code information, extracting uniform resource locator (URL) information corresponding to the code information, transmitting a content information request message to a service provider server corresponding to the URL information, and receiving content information corresponding to the URL information from the service provider server. According to embodiments of the present invention, it is possible to provide various and convenient mobile services to mobile terminal users using a mobile terminal, having a camera, and a code pattern containing the URL information.

Abstract: Techniques for sending a MIMO transmission using a combination of cyclic delay diversity and precoding are described. A set of delays (e.g., zero delay, small delay, and large delay) for cyclic delay diversity and a set of precoding matrices may be supported. In one design, a Node B may select a delay specifically for a UE or for a set of UEs served by the Node B. In another design, a UE may evaluate different combinations of precoding matrix and delay, determine the combination with the best performance, and send this combination of precoding matrix and delay to the Node B. The Node B may perform precoding with the precoding matrix and then processing for cyclic delay diversity based on the selected delay. Alternatively, the Node B may perform processing for cyclic delay diversity based on the selected delay and then precoding with the precoding matrix.

Abstract: A cell plan operation, a Routine and a base station are disclosed wherein user entities are allocated to at least two carriers (C1; C2) in at least one cell (A; B) of a system (node B), the first carrier (C1) having at least a first channel (DPCH), the second carrier (C2) having at least a second channel (DPCH), the at least two carriers not causing interference to one another, wherein user entities (UE) may be selectively assigned to either first channel and/or the second channel. Information is gathered on respective measures relating to the noise enduring capability (MAX ROT(UEn)) of respective prevalent users within the at least one cell. Prevalent user entities are ordered according to their respective noise enduring capabilities (MAX_ROT(UEn)_UE). User entities with low noise enduring capabilities are allocated to a channel on the first carrier (C1), while user entities with high noise enduring capabilities (MAX_ROT(UEn)) are allocated to a channel on the second carrier (C2).

Abstract: Various embodiments are described relating to sharing scanning operations among nodes in a wireless network, such as a WiMedia ultra-wideband (UWB) network. In an example embodiment, a message may be sent from a sending node to one or more receiving nodes requesting the receiving nodes to reduce transmissions on a wireless medium. The sending node and the receiving nodes may be included in a distributed wireless network. In an example embodiment, the wireless medium may be scanned at the sending node to determine whether the one or more receiving nodes are participating in the distributed wireless network by periodically transmitting beacons during a repeated interval, wherein the scanning may be performed periodically, aperiodically, or continuously.

Abstract: Embodiments of systems and methods for Bluetooth and WiMAX coexistence are generally described herein. Other embodiments may be described and claimed. In some embodiments systems and methods are described to determine a temporal reference associated a frame, and then align another wireless frame with that temporal reference. Once aligned, transmissions and receptions in one wireless frame may be arranged to not temporally overlap with transmissions or reception the other wireless frame.

Abstract: A module dual mode device architecture and method of use is disclosed. The system architecture provides a distributed design of an IEEE 802.11i compliant supplicant module that provides security to data/voice packets sent over the wireless local area network (“WLAN”) radio interface from a dual mode device to an access point. The dual mode device establishes a connection with the access point and if the access point is security enabled, one or more session keys are generated. The session keys are used to provide security for communications over the radio interface between the dual mode device and the access point.

Abstract: The invention relates generally to a method for providing presence and instant messaging in a computer network. In particular, the invention is directed to a modified implementation of known wireless networking protocols to provide instant messaging and presence services to mobile units using. The instant messaging and presence services are provided within the framework of the native wireless networking protocol.

Abstract: A computer implemented method selects antennas in a multiple-input, multiple-output wireless local area network that includes multiple stations, and each station includes a set of antennas. Multiple consecutively transmitted sounding packets are received in a station. Each sounding packet corresponds to a different subset of the set of antennas. A channel matrix is estimated from the multiple consecutively transmitted sounding packets, and a subset of antennas is selected according to the channel matrix.

Abstract: Provided are a wireless network system and a method of configuring the same, in which stations that perform directional communication in a high-frequency band can share information regarding their communication capabilities with each other. An apparatus for managing stations that transmit/receive data using millimeter wave (mmWave) includes a communication capability information management module which receives an association request frame and determines the communication capability of an associating station that has transmitted the association request frame based on the association request frame; an information-frame-generation module which generates a wireless video area network (WVAN) information frame specifying the communication capability of the associating station; and a communication module which transmits the WVAN information frame, wherein the apparatus serves as a wireless network coordinator.

Abstract: Wireless communication relay networks and techniques for providing data synchronization in Multicast Broadcast Services (MBS).

Abstract: A terminal (such as that belonging to or carried by an emergency first responder, for example) participates in a push to talk multicast group in either of two modes or levels. In a first mode or first level of participation, the terminal can join a multicast address for the push to talk multicast group as a passive recipient of transmissions and can thereby listen to the multicast address. In a second mode or second level of participation, the terminal becomes an active participant in the push to talk session. As an active participant in the push to talk session, the terminal can, e.g., receive sender identification (e.g., identification of other participants who may be talking in the push to talk multicast group) and send media bursts to the multicast group.

Abstract: A communication station, such as a UE or Node B of a 3GPP system, configured to receive channelization coded signals on physical channels of at least one composite channel within timeslots of a system time frame. The actual number of channelization codes received for the composite channel within a system time frame is determined. The transmitted channelization codes are then identified by performing a channelization code identification algorithm based on the determined number.

Abstract: A method is described for operating a cellular network, where the cellular network uses a plurality of frequency division multiplexing (FDM) bands for wireless communication from user equipment (UE) to a base station (NodeB). At least one band-specific cell parameter is computed for at least one the plurality of FDM bands by a serving NodeB. The band-specific cell parameters are transmitted from the NodeB serving a first cell to a NodeB serving a second cell. The band-specific cell parameters may be computed in response to scheduling information and/or channel specific measurements made by the NodeB. A UE receives a first Power Configuration, a Second Power Configuration, and a Scheduling Message indicative of an FDM band from the set comprising at least from First FDM band and Second FDM band. UE transmits with the First Power Configuration if the Scheduling Message was indicative of First FDM band, and with the Second Power Configuration otherwise.

Abstract: A distributed MAC protocol is provided that includes a superframe (102) having a slotted Beaconing Period (104) and a data transfer period (103). The provided superframe (102) comprises a plurality of medium access slots (107) and a plurality of medium access slots (107) is assigned to the slotted Beaconing Period (104). The Beaconing Period length (106) may be fixed or variable. The provided Beaconing protocol defines initializing an ad hoc network by means of starting (101) a Beaconing Period (104), joining an existing Beaconing Period (104) of ad hoc network and resolving collisions during the Beaconing Period.

Abstract: In one aspect, a wireless transceiver transmits and receives wireless signals, and medium access controller independently initiates transitions from a scanning state to a power conserving state and from the power conserving state to the scanning state. In the scanning state, the medium access controller directs the wireless transceiver to receive frames on at least one wireless channel and the medium access controller scans the received frames for identifiers of one or more respective target access points. In the power conserving state, the medium access controller places at least one of the wireless transceiver and the medium access controller in a low-power mode of operation.

Abstract: A communications system includes a wireless telephony network and a wireless Local Area Network (LAN), both accessible by a mobile communications device (16). To facilitate transitioning of the mobile communications device to the wireless LAN from the wireless telephony network, the wireless LAN includes a beacon transmitter, which generates a synchronization channel having a pattern unique to the wireless LAN. The Wireless LAN synchronization channel is received at a first receiver in the mobile communications device together with a synchronization channel from the wireless telephony. The wireless LAN synchronization channel enables the mobile communication device to synchronize with, for transitioning to, the wireless LAN.

Abstract: A method and network node for supporting a synchronization of a connectivity session location function (CLF) in a communication network. The method uses a processor for sending and receiving messages from a communication network, detecting the unavailability of the CLF, detecting that access information related to the session of the UE is missing from the CLF, receiving missing access information for a session of a UE and synchronizing the CLF on a per session basis. Furthermore, the processor accesses a memory for storing access information and synchronizes the stored access information of the session with the received missing access information of the session of the UE stored during unavailability of the CLF.

Abstract: A network, network devices, and methods are described for locating original port information. A network device includes a network chip having a number of network ports for the device for receiving and transmitting packets. The network chip includes logic to locate original port information for a packet returned from a checking functionality.

Abstract: A resolution of the address of an SIP proxy in an SIP network, with redundant SIP proxy resources, is provided. To establish a connection in an SIP network, an SIP client typically transmits a request to a DNS server system to obtain an address to gain access to SIP proxy resources. The SIP proxy resources are provided in the form of SIP proxy servers which are part of a peer-to-peer group. Messages are exchanged within the peer-to-peer group via a peer-to-peer protocol in order to communicate responsibilities for SIP domains or user-agent addresses. Adjustable responsibilities are defined within group. The address of the SIP proxy server responsible for the request of the SIP client is made available to the DNS server system so the DNS server system can forward the address to the SIP client so as to allow the SIP client to access the relevant Sip proxy server.

Abstract: The invention provides a system and method for providing voice over Internet protocol (“VoIP”) services with an improved quality of service (“QoS”). In one embodiment, a number of gateways or proxies are connected with dedicated links to form a dedicated network. Each gateway is also on one or multiple communication networks, such as individual communication networks provided by different network providers. Each user of the system uses an ATA to connect to the dedicated network, which then connects the user to another ATA of another user, thereby establishing a connection between these two users. The connection between each of the ATAs and the dedicated network is made through communication network or networks. As the quality of a public network is generally not managed by a VoIP service provider, it is desirable to minimize the effects of public network or networks. A method is provided for selecting a gateway that provides the best connection possible to the dedicated network.

Abstract: A VoIP phone includes a signal port, a comparison and distribution module, a first communication protocol module, a second communication protocol module, and a communication interface for a user to dial and talk. The comparison and distribution module is connected with the signal port for sorting signal outputted from the signal port into a first signal and a second signal by respective signal formats of the signals. The first communication protocol module is connected with the comparison and distribution module for processing the first signal and output a processed first signal, and the second communication protocol module is connected with the comparison and distribution module for processing the second signal and output a second processed signal.

Abstract: The present invention proposes a specific handling of tel URIs in an IMS terminating network so as to enable routing of calls using telephone numbers (and not SIP URIs with embedded telephone numbers) as identifiers of the target users of those calls. Specifically, the present invention introduces a conversion module which is located within the IMS terminating network and is capable of converting SIP URIs with embedded telephone numbers into equivalent tel URIs which are then used by a terminating I-CSCF and S-CSCF to query the SLF and/or HSS so that they can route the calls to the target users.

Abstract: The present invention proposes a solution for providing IMS services to users having circuit-switched controlled terminal being not adapted to provide IMS services to the users. In particular, it is proposed, in order to allow IMS to take the full call and service control, to place a user agent being responsible for the user ported to the IMS in a new node type called Mobile Access Gateway Control Function (MAGCF). This new node combines the logical functionality of a cellular switching center and the logical functionality of IMS. Further it is proposed to enhance a user's register, like HLR, to provide also information about the availability of a MAGCF node and about whether a particular user is enabled to use the MAGCF functionality.

Abstract: A system comprising a first network gateway coupled to a circuit-switched network, the first network gateway to initiate a tunnel through the circuit-switched network responsive to packetized fax relay data received from a packet-switched network, and a second network gateway couple to the circuit-switched network, the second network gateway to receive packetized fax relay data through a tunnel over the circuit-switched network from the first network gateway.

Abstract: In one embodiment, a three-stage scalable hybrid switch fabric has an input stage with one or more electronic input crossbar switches, a middle stage, and an output stage with one or more electronic output crossbar switches. The middle stage has (1) tunable optical transmitters that convert electrical signals received from the input stage into optical signals having selectable wavelengths, (2) one or more passive, wavelength-dependent optical routers that route the optical signals received from the transmitters at input nodes to output nodes, each output node determined by the wavelength of the optical signal and possibly by the input node at which the optical signal is applied, and (3) optical receivers that convert the routed optical signals into electrical signals provided to the output stage. Each scaling increment includes (i) an input crossbar switch and its corresponding optical transmitters and (ii) an output crossbar switch and its corresponding optical receivers.

Abstract: Various techniques for transferring a session in a cluster are disclosed. In one configuration of a cluster, an apparatus may be configured to communicate with an access terminal. The apparatus may be configured to store a session for the access terminal, the session including a plurality of attributes. The apparatus may be further configured to identify one or more of the attributes required by an access point to serve the access terminal, and provide the one or more attributes to the node.

Abstract: An apparatus includes a flow unit configured to support a first control flow with a first node in the cluster. The flow unit is also configured to support a second control flow, through the apparatus, between the first node and a second node in the cluster. The first and second control flows include a plurality of frames each having a field and content, wherein the field in each of the frames identifies whether the content in that frame is part of the first or second control flow.

Abstract: A method and system for correlating messages within a wireless transaction, each of the messages requiring a unique message identifier, the method having the steps of: creating a transaction identifier, the transaction identifier being the same for related messages; and adding to the transaction identifier a message index, the message index corresponding to a number of a message within a transaction, whereby the transaction identifier and message index form the unique message identifier for each of the messages.

Abstract: A method for receiving multicast service data by a terminal in a communication system. The method includes receiving a pilot from a base station, measuring channel state information using the received pilot, and transmitting the channel state information to the base station; receiving a frame from the base station, and determining whether there is an error in the received frame; when no error has occurred in the received frame, determining whether the number of frames consecutively received without error is greater than or equal to a predetermined number; and when the number of frames consecutively received without error is greater than or equal to the predetermined number, transitioning to a non-feedback state where the terminal transmits no channel state information to the base station. The frame includes multicast service data.

Abstract: In one embodiment, a method includes receiving authenticated site data that includes site ID data and address data. The site ID data indicates a unique site ID for each site among multiple sites for a first network that uses an internal routing protocol. Multiple edge sites of those sites are separate from each other and connected to a second network that is under separate administrative control of at least one different party. The address data indicates network addresses associated with each site of the plurality of sites. An external routing protocol message is discounted based on the authenticated site data.

Abstract: In various exemplary embodiments, the present invention provides a low-cost, low-processing overhead mechanism for distributing routing, topology, reachability, and recovery information across the interface between two nodes that may then be used by a network or client device to populate a topology database, route a connection, recover from a connection failure, etc. Specifically, the methods and systems of the present invention use a link management interface and the associated link management protocol(s) to distribute this routing, topology, reachability, and recovery information, adding it to the normal link management protocol(s).

Abstract: A network switch including at least one data port interface supporting a plurality of data ports, at least one stack link interface configured to transmit data between the network switch and other network switches, and a CPU interface configured to communicate with a CPU. A memory management unit in communication with the at least one data port interface and the at least one stack link interface is provided along with a memory interface in communication with the at least one data port interface and the at least one stack link interface, wherein the memory interface is configured to communicate with a memory.

Abstract: Internet Protocol (IP) switch and method for switching an IP frame to an IP destination address. The IP switch includes access ports, interswitch ports, and a switching table. Each access port is connected to a corresponding host in a LAN. The interswitch ports are configured to be statically connected to routers within the Internet in connections that cannot be overwritten by dynamic learning. The switching table includes entries, each entry having an IP address, a port identifier, and a routing protocol internal metric indicative of confidence in the entry. The method for switching the IP frame includes: receiving the IP frame, reading the IP destination address from the IP frame, ascertaining a matching IP address in the switching table that matches the IP destination address, directing the IP frame to a specific port, transmitting the IP frame from the specific port to the IP destination address.

Abstract: Method for processing content of an Internet Protocol (IP) packet and method for processing a full broadcast IP packet. Processing content of an IP packet includes: extracting IP source and destination addresses and payload from the IP packet; and generating an IP frame encapsulating the IP source and destination addresses and the payload between a preamble field and an error checking field. Processing a full broadcast IP packet includes: receiving the full broadcast IP packet including an IP source address and a full broadcast IP destination address; ascertaining a closest matching IP address and a subnet thereof in a switching table of an IP switch; replacing the full broadcast IP destination address in the IP packet with a subnetted source address generated by applying the subnet mask to the IP source address; transmitting the IP packet to all IP addresses in the switching table within the subnetted source address.