Abstract: Method and apparatus for reliable multicast communication over wireless network are provided. According to embodiments of the invention, the method includes determining a priority category for a multicast communication to be transmitted. The method includes designating, for the multicast communication, one of the multicast communication recipients as a leader based on the priority category and multicast diagnostics information received from the multicast communication recipients. The leader is assigned to transmit to the multicast communication source an acknowledgment frame indicating receipt of a multicast communication frame received from the source.

Abstract: A method and apparatus include a scheduling entity (208) for selecting a coding scheme and transmitting the frame (304) across a communication network (100). The controller (206) coupled to scheduling entity (208) determines a transmission gain for the frame based on the received signal interference and assigned reliability factor for the communication node. The scheduler entity (208) selects the lowest coding scheme for the frame corresponding to the determined transmission gain. The transceiver (214) coupled to controller (206) via interface (212) receives the encoded frame and transmits the frame to a plurality of mobile stations in the communication network (100).

Abstract: The present invention relates to a wireless mobile communication system, and more particularly, to a method of transmitting data to mobile terminals in the wireless mobile communication system capable of transmitting multicast data. In order to solve the aforementioned problems in the prior art, a method of transmitting data to mobile terminals in a mobile terminal communicating with a network through which multicast data are transmitted. The method of the present invention comprises the steps of transmitting a requesting frame to the network for requesting the multicast data when the start of a multicast service is recognized through an upper layer of the mobile terminal; receiving a response frame from the network in response to the request frame; and receiving the multicast data from the network.

Abstract: In Spatial Division Multiple Access (SDMA) communications, mobile devices that are transmitting to a base substantially simultaneously during a predetermined communications phase may wait until after an end of the predetermined communications phase to receive acknowledgments to their transmissions, so that a mobile device making a relatively short transmission does not experience an acknowledgement timeout while another mobile device is still completing a relatively long transmission. In some embodiments, the mobile devices may transmit a non-immediate block acknowledgement request during the communications phase.

Abstract: A method for multicasting a packet begins by providing a buffer for each of two user equipments (UEs) in communication with a base station. A determination is made whether there is a previously unsent packet at the base station. A second determination is made whether both UE buffers are non-empty. A non-empty buffer is flushed if there is no previously unsent packet and if one of the buffers is non-empty. A packet is selected to be transmitted if there is a previously unsent packet or if both buffers are non-empty. The buffers are updated based on feedback received from the UEs.

Abstract: A radio communication system including: ANs (Access Networks) for wirelessly communicating with an AT (Access Terminal); and a communication control apparatus for controlling the AN, wherein the communication control apparatus sends transmission cycle information and control information to the AN, and wherein the AN transmits the transmission cycle information received from the communication control apparatus to the AT, allocates the communication information in the predetermined transmission cycle based on the control information received from the communication control apparatus to transmit the communication information to the AT, wherein, if the AN does not need to transmit any of plural pieces of the communication information to the AT for a subject period any longer, the AN uses the subject period to transmit any of other plural pieces of the communication information which is allocated to a next period.

Abstract: The present disclosure relates to transmitting data between a plurality of computing devices such as mobile telephones and other electronic communications devices, where a request is associated with placing a call to a contact, and where information associated with the request is stored and a request for a SIP proxy is made, and an IP address associated with the SIP proxy is transmitted to allow redirecting the call to a server via the SIP proxy.

Abstract: Disclosed is a method and an apparatus for transmitting and receiving data via a MAC protocol in a mobile communication system. The method includes inputting at least one Service Data Unit (SDU) containing transmission data through a corresponding logical channel and generating at least one first Protocol Data Unit (PDU) that includes said at least one SDU without including multiplexing information for identification of the logical channel, by a first transmission entity; acquiring the first PDU and generating a second PDU including the first PDU in a payload of the second PDU, by a second transmission entity that operates between the first transmission entity and a physical layer; inserting the multiplexing information for identification of the logical channel corresponding to said at least one first PDU into header information of the second PDU; and transmitting the second PDU through the physical layer.

Abstract: An interleaved frame structure provides the ability for access links and relay links to share a single channel and enable the transmission of packet information across a 2-hop path within one frame. The interleaved frame structure in combination with fast processing at the Relay Station (RS) allows scheduled packet information to travel from a Mobile Subscriber (MS) to its MR enabled base station (MR-BS) within one frame.

Abstract: Apparatuses and methods for processing a bandwidth request in a multihop relay Broadband Wireless Access (BWA) communication system are provided. A communication method of a Relay Station (RS) includes determining a number of bandwidth request ranging codes received from Subscriber Stations (SSs); and reporting the number of the bandwidth request ranging codes to a Base Station (BS). A communication method of the BS includes allocating a resource to an RS to report on a number of detected bandwidth request ranging codes; and receiving a report on the number of the bandwidth request ranging codes using the allocated resource.

Abstract: The Aircraft IP Subnet System provides wireless communication services to passengers located onboard an aircraft by storing data indicative of individually identified wireless devices that are located onboard the aircraft. The Aircraft IP Subnet System assigns a single IP address to each Point-to-Point Protocol link connecting the aircraft network to the ground-based communication network and creates an IP subnet onboard the aircraft. The IP subnet utilizes a plurality of IP addresses for each Point-to-Point link, thereby to enable each passenger wireless device to be uniquely identified with their own IP address. This is enabled since both Point-to-Point Protocol IPCP endpoints have pre-defined IP address pools and/or topology configured, so each Point-to-Point Protocol endpoint can utilize a greater number of IP addresses than one per link. Such an approach does not change IPCP or other EVDO protocols/messaging but allows this address to be directly visible to the ground-based communication network.

Abstract: An exemplary wireless communication network that includes a base that communicates with remote units located in a cell of the network. A base concatenates information symbols with a preamble corresponding to a destination remote unit. One or more remote units communicating with a base each concatenates information symbols with a preamble corresponding to that remote unit. An adaptive receiver system for a base unit rapidly adapts optimal despreading weights for reproducing information symbols transmitted from multiple remote units. A transmitter system for a base unit concatenates information symbols with a preamble associated with a remote unit in the cell. An adaptive receiver system for a remote unit in a communication network rapidly adapts optimal weights for reproducing a signal transmitted to it by a specific base unit in the network. A transmitter system for a remote unit in a cell of a communication network which concatenates information symbols with preamble associated with the remote unit.

Abstract: A distributed base station system for high speed data transmission is disclosed. The system includes a plurality of remote antennas, each antenna being coupled to a router. The plurality of remote antennas is coupled to each other and is arranged into a network.

Abstract: A system, methods, devices and computer program products for controlling the operation of at least one electronic appliance, e.g. a TV, a music system, a lighting system, a kitchen appliance or an alarm system, located within a local area. The system has a mobile terminal located within the local area, the mobile terminal being configured to transmit a short-range radio signal to one or more short-range devices located within the local area. Each short-range device of the plurality of short-range devices located within the local area is configured to receive a short-range radio signal from the mobile terminal, perform a signal measurement of signal delay, signal strength, or both signal delay and signal strength of said short-range radio signal received from the mobile terminal, and transmit information about said measurement to an electronic apparatus. The electronic apparatus is configured to subsequently receive this information about the signal measurements from the plurality of short-range devices.

Abstract: Apparatus, methods and computer program products are provided that enable enhanced resource allocation for a wireless mesh network. A method includes: in response to receiving a resource request in a wireless mesh network, allocating, by a first node, at least one dedicated resource for communication with a second node; reserving at least one shared resource for use in conjunction with communications with the first node; and transmitting to the second node information corresponding to the allocated at least one dedicated resource and the reserved at least one shared resource.

Abstract: Disclosed is a method and apparatus for increasingly improving a performance of a mobile communication system or a wireless broadcasting system, such as a Cellular System, a PCS (Personal Communication Service), a WiBro, a DMB (Digital Multimedia Broadcasting) or a GPS (Global Positioning System) by installing a mobile/fixed relay having multiple antennas in mobile vehicles, such as a automobile or a bus, or in fixed structures, such as a house or a building, to achieve beam-forming gain or diversity gain.

Abstract: A method and apparatus for configuring a downlink frame in a communication system. The method and apparatus includes setting up a first region including allocation information of a data burst according to an amount of the data burst to be transmitted in a downlink frame region; estimating a first transmission Protocol Data Unit/Packet Data Unit (PDU) according to scheduling priority; and transmitting the first PDU over a remaining region except for the first region in the downlink frame region. The data burst includes at least one PDU having the same Modulation and Coding Scheme (MCS) level, or is a data burst generated by concatenating PDUs of the same Mobile Station (MS).

Abstract: A protocol framework for MS handover in MR networks includes new messages and an optimized flow of these messages. A framework for use in a multi-hop topology of MR networks optimizes the handover performance. The framework is applicable and expandable to the design of a new control message exchange procedure for MS handover.

Abstract: A method for SRNS relocation comprises sending a relocation request from a Source Node B+ to a Target Node B+ based on measurements received from a User Equipment; sending a Physical Channel reconfiguration message from the Source Node B+ to the UE; forwarding Packet Data Units (PDU) from the source Node B+ to the Target Node B+; and performing physical layer synchronization and radio link establishment with a target cell of the Target Node B+.

Abstract: A method and apparatus for implementing an attachment procedure in multi-mode systems are disclosed. A wireless communication system includes at least one of a second generation (2G) system, a third generation (3G) system, a long term evolution (LTE) and system architecture evolution (SAE) of the 3G system and a non-3G system. For performing an attachment procedure, a wireless transmit/receive unit (WTRU) sends an attach request message to a new serving general packet radio service (GPRS) support node (SGSN) indicating an attach type. The new SGSN and the WTRU then perform an attachment procedure based on the attach type. The attach type may indicate a GPRS only attachment, a GPRS and SAE attachment, or a 3GPP and non-3GPP attachment.

Abstract: A system and method for performing anticipatory hand-off setup between communication networks. Various aspects of the present invention may, for example and without limitation, provide a system and method for performing anticipatory hand-off setup between communication networks. For example and without limitation, prior to a determination to perform a hand-off of a mobile communication device from a first communication network to a second communication network, a determination may be made that hand-off setup information should be communicated with the second communication network. For example, such a determination may be made in anticipation of a hand-off that may or may not happen. Such hand-off setup information may then be communicated with the second communication network. Such communicated setup information may then, for example, be utilized to at least partially prepare for performing the anticipated hand-off.

Abstract: A system and method for performing efficient network hand-off (e.g., of a mobile communication device) utilizing stored beam-forming information. For example and without limitation, before determining to perform a particular hand-off, various aspects may comprise storing beam-forming information associated with the particular hand-off. Various aspects may also, for example, comprise determining to perform the particular hand-off. Various aspects may additionally, for example, comprise (e.g., after determining to perform the particular hand-off) accessing the stored beam-forming information associated with the particular hand-off to be performed. Various aspects may further, for example, comprise utilizing the accessed beam-forming information to form a communication beam to utilize for performing the particular hand-off.

Abstract: Systems and methodologies are described that facilitate communicating reverse link control information over OFDMA control channel(s) and CDMA control channel(s). Dedicated OFDMA control channel resources can be assigned to mobile device(s). Control information related to one or more logical control channels can be generated by a mobile device. Further, a physical control channel type (e.g., OFDMA control channel or a CDMA control channel) can be selected for sending the control information via the reverse link. For example, control information associated with periodic, logical control channels can be multiplexed and sent over the OFDMA control channel (e.g., utilizing the dedicated OFDMA control channel resources) while control information related to non-periodic, logical control channels can be transmitted over the CDMA control channel.

Abstract: An improved digital radio head system and method for wireless communications is disclosed that simplifies the timing and synchronization between the access network, base station, and radio head. A satellite derived timing source is obtained at one or more of the remote radio heads where it is convenient to obtain and use the timing reference. The reference is transmitted back to the base station, if necessary, to synchronize the two. This is further synchronized at a lower accuracy through the access network.

Abstract: Embodiments of the invention relate to wireless communications networks, and more specifically to method and apparatus relating to wireless backhaul for cellular wireless systems. Increasing data capacity of cellular wireless systems places increasing demands on the capacity of the two way connection, known as backhaul, between a cellular base station and a telecommunications network such as the PSTN backhaul, since this is the connection that has to convey the wireless-originating traffic to its destination, often in an entirely different network. Known backhaul links include leased lines, microwave links, optical fibre links or radio resources for relaying backhaul traffic between base stations. The fixed line solutions are expensive to implement and maintain, while the radio solutions suffer from interference from transmissions between base stations with transmissions from user equipment to base stations which are not communicating with other base stations.

Abstract: Methods and apparatus for use in controlling the loading of wireless access points (APs) in a wireless local area network (WLAN) in support of legacy terminals are disclosed. The WLAN has at least a first AP and a second wireless AP adjacent the first wireless AP. An indication which indicates whether a loading of the second wireless AP is greater than a predetermined threshold is identified. When the indication indicates thai the loading is greater than the predetermined threshold, a first nominal radio frequency (RF) transmission power of the first wireless AP is increased in order to increase a first RF coverage area of the first wireless AP. A second nominal RF transmission power of the second wireless AP is correspondingly reduced in order to reduce a second RF coverage area of the second wireless AP.

Abstract: A radio transceiver device includes circuitry for radiating electromagnetic signals at a very high radio frequency both through space, as well as through wave guides that are formed within a substrate material. In one embodiment, the substrate comprises a dielectric substrate formed within a board, for example, a printed circuit board. In another embodiment of the invention, the wave guide is formed within a die of an integrated circuit radio transceiver. A plurality of transceivers with different functionality is defined. Substrate transceivers are operable to transmit through the wave guides, while local transceivers are operable to produce very short range wireless transmissions through space. A third and final transceiver is a typical wireless transceiver for communication with remote (non-local to the device) transceivers.

Abstract: A device includes a first integrated circuit, a second integrated circuit and an RF bus controller. Each of the first and second ICs includes a radio frequency (RF) bus transceiver. The RF bus controller is coupled to control intra-device RF communications between the RF bus transceivers of the first and second ICs.

Abstract: A sequence of screens are displayed for a wireless local area network (WLAN) connection setup application to enable a user of a handheld WLAN client device to scan for and set up a new WLAN connection. Various connection parameters may be saved in a profile. A profile management application lists profiles in decreasing order of priority.

Abstract: A method of providing mobility between network subnets for a plurality of mobile network nodes attached to a mobile router, which mobile router hides any change in network subnet from said plurality of mobile network nodes and which network subnets provide access for said mobile router to a fixed network infrastructure, which method comprises the steps of (a) providing a signaling channel for each of said plurality of mobile network nodes; and (b) providing a data channel for each of said plurality of mobile network nodes; characterized in that said signalling channel utilises a multicast communication protocol to perform a mobility function on behalf of one or more of said plurality of mobile network nodes.

Abstract: Apparatus and method for sending a multicast packet in a mobile digital broadcast system are provided. The mobile digital broadcast system includes a broadcaster for indicating the designated recipient in an Internet Protocol (IP) header of a multicast packet and including a temporary IP address of the recipient in the IP header when multicasting data of a designated recipient; a receiver for providing the received multicast packet to an application program for outputting a digital broadcasting when the receiver joins a group of the multicast packet and the recipient is designated to the receiver upon receiving the multicast packet; and an IP allocating server for allocating a temporary IP address when the receiver requests to allocate the temporary IP address, storing the allocated temporary IP address and ID information of the receiver, and sending the allocated temporary IP address and the ID information of the receiver to the broadcaster.

Abstract: A Wireless Local Area Network (WLAN) is operated in conjunction with a wired Local Area Network (wired LAN) to service a premises, e.g., a campus setting. The wired LAN services the wired communication needs of the premises and serves as the wired backbone of the WLAN. A plurality of Wireless Access Points (WAPs) of the WLAN couple to the wired backbone and are serviced by the LAN. With this shared structure, wired network components, e.g., multi-layer switches, manage the operation of WLAN components, i.e., WAPs. Such management includes ensuring that the WAPs provide sufficient bandwidth to support wireless packetized voice communications. Additional management operations include WAP access, wireless terminal registration, and channel resource allocation, among others.

Abstract: A generalized form of cyclic shift diversity is described for use in an OFDM system with multiple transmit antennas. Multiple cyclic shifts are performed for each transmit antenna and the shifted signals are scaled and summed to form a time-domain data stream for each transmit antenna. A cyclic extension is added to each data stream prior to transmission.

Abstract: There is provided with a radio communication method including: managing carrier sensing states of any one of two first channels having identical bandwidths and a second channel including both bands of the two first channels; determining whether to transmit transmission data using the first channel or the second channel; attempting to acquire a transmission right using the second channel based on the carrier sensing state of the second channel when the transmission data is determined to be transmitted using the second channel; and performing control such that the transmission data is transmitted using any one of the first channels when the time during which the attempt to acquire the transmission right using the second channel is made exceeds a time threshold set in advance.

Abstract: A radio communication system including: ANs (Access Networks) for wirelessly communicating with an AT (Access Terminal); and a communication control apparatus for controlling the AN, wherein the communication control apparatus includes: a control unit for sending transmission cycle information and control information to the AN, and wherein the AN includes: a memory for storing information necessary for transmitting the communication information to the AT; a control unit for transmitting the transmission cycle information received from the communication control apparatus to the AT, calculating a transmission slot number necessary for sending the communication information in the transmission cycle, determining a transmission timing indicating a period in the predetermined transmission cycle allocated for the communication information, and transmitting the communication information in the determined transmission timing to the AT.

Abstract: For wireless networks that transmit synchronization signals allowing user equipment to synchronize to cells within the network and transmit reference signals allowing user equipment to determine cell identities, a method and apparatus taught herein advantageously link the synchronization signal sequences to the reference signal sequences according to a defined mapping. The linking simplifies the cell search process by allowing user equipment to determine cell identities based on mapping detected synchronization signal sequences to the corresponding reference signal or to the corresponding subset of reference signals in embodiments where there are more reference signal sequences than synchronization signal sequences.

Abstract: A method and apparatus for transmitting and receiving an SCH in a cellular wireless communication system, in which a number of available PSCs among PSCs defined for P-SCH in the system is checked, a default PSC to be used with priority in UEs of the system for cell search is selected and a P-SCH signal is transmitted with the default PSC in each of underlying cells when the number of available PSCs is 1, and PSCs are selected for the cells from among the available PSCs so adjacent cells have different PSCs and P-SCH signals are transmitted using the selected PSCs in the cells when the number of available PSCs is 2 or larger.

Abstract: Aggregating links across multiple chassis is disclosed. An indication that one or more local links are to be aggregated with one or more links on another chassis is received. Coordination with the other chassis is performed, via an inter-chassis control path, to present to a downstream equipment as an aggregated group of links the one or more local links and the one or more links on the other chassis.

Abstract: An embodiment of the present invention is a method for server side integration of communication devices and the general purpose PC of the same user through a computer network wherein no physical connection is required between the PC and the communication device. The user registers with PnC (phone and computer) server for subscribing to one or more PnC services such as drop-to-call, conference-call-dropping service, webpage sharing, caller kaleidoscope etc., via user interface of communications device and/or PC. Various features for subscribing and unsubscribing to services are provided along with authenticating the user using the name and the phone number of the user while registering with the server.

Abstract: Methods and apparatus for handling a communication session for an unregistered Internet Protocol Multimedia Subsystem (IMS) device are disclosed. An example method comprises receiving an IMS session initiation message from an un-registered user endpoint, determining whether the IMS session initiation message is directed to an exception endpoint, and establishing an IMS session on behalf of the unregistered user endpoint when the IMS session initiation is directed to the exception endpoint.

Abstract: A method of populating a store with information identifying user devices capable of communicating in a communications network, includes establishing a communication event from an initiator device to a recipient device via the communication network using information identifying the recipient device; receiving from a user of the initiator device a selection signal indicating that said information identifying the recipient device is to populate the store; and transmitting said information identifying the recipient device from the initiator device to the store via the communication network.

Abstract: Multimedia subsystem, IMS, containing a set of call session control function elements, CSCF, suitable for sending a signaling message (m) between a first communication client (T) connected to said multimedia subsystem and at least one second communication client, where this second communication client may be connected to said multimedia subsystem or remote and accessible through an interrogating functional element, I-CSCF, and routing methods used to determine a path for the transmission of the signaling message, based on a logical address contained in the signaling message. The multimedia subsystem, IMS, is characterized in that the routing methods implement a distributed hashing table.

Abstract: The present invention relates to a system and method for sharing and controlling various contents in a voice call. A contents sharing system includes a soft switch and a contents share server. The soft switch receives a voice call from a VoIP terminal to set establishment and cancellation on a voice call session, receives a contents sharing request call, and transmits the same to the contents share server. The contents share server in cooperation with the soft switch receives the contents request call and processes establishment and cancellation on a data session for contents sharing between the callers. Accordingly, improved calling is provided by sharing various contents between the callers in a voice calling and thereby overcoming the problem of communication only available for voice.

Abstract: A method for call signaling and media flow in a network including receiving call signaling information from an originating Voice over Internet Protocol (VoIP) endpoint relaying the call signaling information to a destination VoIP endpoint, directing the originating VoIP endpoint to use a RTP media proxy and receiving a stream of media to the RTP media proxy from the originating VoIP endpoint.

Abstract: The present invention provides systems and methods for supporting native TDM and native Packet switching simultaneously in a meshed switching architecture. Specifically with the present invention, the meshed links are common to both TDM and packet traffic, and both types terminate to a common system interface without the need to separate physical resources and infrastructure; the common termination function has access to both the TDM (Time Slot Interchange (TSI)) switching and packet switching elements. Native TDM switching and packet switching operate in concurrently in the mesh over common links, with the personality of the links derived by the card type (attached to the mesh). In this, a given card or slot in a system can communicate in the native format to both packet based cards (slots) or TDM based cards (slots) simultaneously with no preconceived restrictions or limitations on slot or link definition.

Abstract: Some embodiments provide a method of registering a user equipment (UE) in a communication system that includes a licensed wireless communication system and a generic access network (GAN) that has a generic access network controller (GANC). The method sends a register request message from the UE to the GANC that indicates a GAN mode capability of A/Gb only for the UE. When the GANC has a GAN mode capability of A/Gb, the GANC registers the UE with the GAN. When the GANC has a GAN mode capability of Iu only, the GANC rejects the register request message. When the GANC has a GAN mode capability of both A/Gb and Iu, the GANC registers the UE based on a set of GANC mode selection rules that the GANC applies for registering UEs with the GAN.

Abstract: A method and apparatus is described for coordinating the movement of communication traffic, e.g., a voice call, from a packet switched (PS) domain to a circuit switched (CS) domain in the case that the terminal device cannot communicate with the PS and CS radio technologies simultaneously. Such movement involves the parallel activities of moving the bearer traffic routing from the PS domain to the CS domain, and of moving the radio connection from the PS radio access network to the CS radio access network. An adjustable timer is used to delay either the movement of the terminal device from the PS radio technology to the CS radio technology, or to delay the movement of bearer traffic from the PS domain to the CS domain in order to minimize the gap in bearer traffic delivery to and from the terminal device.

Abstract: An I2C bus control circuit includes a continuous transmission control section in addition to a transmission control section, a sequence control section, a data line control section, and a clock line control section. The continuous transmission control section has a number-of-continuous transmission bytes register and first to (n?1)th continuous transmission data registers, and supplies an interrupt signal to the controller when continuous transmission is completed or an error is detected. The number of times the controller conducts interrupt processing is thus reduced and the processing time is reduced.

Abstract: An apparatus for reducing session setup latency includes a processing element. The processing element is configured to determine a status with respect to a response message made in response to an invite message associated with a communication session, determine a status with respect to media packets being communicated between nodes of a network, make a determination with respect to an acknowledgment message based at least in part on the status determination with respect to the response message and the status determination with respect to media packets, and control setup of a communication session based on the determination with respect to the acknowledgement message.

Abstract: A smart router is used to analyze messages and apply programmable policies to messages based on various diagnostics. Policies can be set by applications or other appropriate entities, such as a service layer. The smart router is able to delegate specific tasks, such as various transport (e.g., firewall, network bandwidth/congestion monitoring), service (e.g., charging, determine quality of service, identify session, filter service level content), and processing (e.g. codec transformation) tasks. Based on the result of the processing, the router can bounce, re-direct, route, or otherwise handle the network traffic.