Class / Patent application number | Description | Number of patent applications / Date published |
370432000 | Messages addressed to multiple destinations | 38 |
20080219283 | FILE TRANSFER METHOD IN CONVERGED IP MESSAGING SYSTEM - A method for performing a one-to-many file transfer in a converged IP messaging system includes receiving a list of target receiving terminals from a transmitting terminal; verifying whether the transmitting terminal can transfer a file; inquiring each receiving terminal server corresponding to each target receiving terminal whether to receive the file; verifying whether each target receiving terminal can receive the file; inquiring each target receiving terminal whether to receive the file; transmitting to the transmitting terminal server the reply of receiving terminals to receive the file; creating a list of determined receiving terminals; requesting the transmitting terminal to transfer the file; receiving the file from the transmitting terminal; and transferring the file to each receiving terminal server corresponding to the determined receiving terminals or to each determined receiving terminal. | 09-11-2008 |
20080247413 | COMMUNICATION APPARATUS AND COMMUNICATION METHOD - A communication apparatus includes: a storage section that stores a packet; a copy section that creates one or more copies of the packet stored in the storage section; and a transmission section that transmits at least two among the copies created by the copy section and the packet stored in the storage section in a plurality of frames. | 10-09-2008 |
20080310444 | Group Communication System Achieving Efficient Total Order and State Synchronization in a Multi-tier Environment - A group communication service maintains synchronization limiting the group to the processing entities that receive a plurality of source message streams from sources outside the group and transmit delivery message streams to destinations that are outside the group. Synchronization of message ordering and other state synchronization directives are communicated from a leader exclusively to other group members. Once having declared themselves to be synchronized and active by a reply protocol message, which is an opaque object and is interpreted by an application layer, the processing entities independently process the source message streams in accordance with the order specified in the directives, without requiring additional sequencing information from another processing entity. | 12-18-2008 |
20090010273 | Media Stream Splicer - An implementation is described herein, which facilitates a fast channel change by receiving and decoding a unicast acquisition media stream that corresponds to a soon-to-be-requested target multicast media stream. It does this before requesting the target multicast media stream of the new channel. Once the transmission of the unicast stream is caught up with the multicast stream, this implementation splices from the unicast acquisition stream to the target multicast media stream. | 01-08-2009 |
20090028173 | MDIO integrated bidirectional digital isolator - An interface between two or more integrated circuit devices employs isolation techniques to provide electrical isolation of a digital signal for transmission of the digital signal between a master device and one or more slave devices. Unidirectional isolator channels are utilized to transmit bidirectional digital signals, and a selection of an isolator channel operating in an intended direction is performed by direction control logic. Logic that monitors read and write transactions operates to determine a desired direction of the digital signal and accordingly directs the digital signal through an appropriate isolator channel. | 01-29-2009 |
20090141735 | Multicast Control - A method and arrangement for optimizing bandwidth usage in a Multicast Services Control System (MSCS), which transports digital information in a multicast stream from a broadband network to a Set Top Box (STB) connected to a terminal TV. When the terminal TV is disabled, and can no longer utilize the multicast stream, the terminal TV sends a terminal status signal to the STB indicating deactivation of the terminal TV. In response, the STB sends an IGMP leave report signal to the broadband network, which then ceases its transmission of the multicast stream to the STB. | 06-04-2009 |
20090196304 | METHOD AND SYSTEM FOR PROVIDING MULTICAST CONTENTION RESOLUTION - An approach is provided for providing contention resolution for resources of a network. Individual contention resolution parameters are determined for respective multicast groups of terminals. The terminals within each of multicast groups able to perform contention resolution over a contention channel based on the respective individual contention resolution parameters. | 08-06-2009 |
20090219945 | Combined join and state transfer - A method and apparatus for processing messages is described. In one embodiment, an application programming interface provides for a flush protocol to force members of a group to send all of their pending messages prior to a predetermined event. A client sends a request to a coordinator of the group to join the group and to transfer a state of the group to the client. The application programming interface performs a single flush operation on the group in response to the request. | 09-03-2009 |
20090274163 | METHOD, SYSTEM, AND APPARATUS FOR CONTROLLING MULTICAST BEARER RESOURCES - A method, a system, and an apparatus for controlling multicast bearer resources are disclosed. The method includes: a network entity in the RACS receives a request of controlling a multicast bearer resource and controls the multicast bearer resource according to the request. The method, the system and the apparatus disclosed herein can control the multicast bearer resource in the NGN. | 11-05-2009 |
20090279563 | SIGNALING SEPARATE UNICAST AND BROADCAST INFORMATION WITH A COMMON PILOT - 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. | 11-12-2009 |
20090304019 | METHOD AND DEVICE FOR REDUCING MULTICAST TRAFFICE IN A UPNP NETWORK - Methods and devices for facilitating communications over a Universal Plug and Play (UPnP) network are disclosed. These methods and devices reduce network traffic while maintaining maximum freshness of the UPnP controlled device status. These and other features of the present invention are accomplished by introducing an intermediary proxy device to moderate multicast messages that are transmitted over the network. The proxy device receives unicast messages from a UPnP controlled device and transmits multicast information on behalf of the UPnP controlled device at a lower rate. In addition, the proxy device can detect unexpected unavailability of the UPnP controlled device and promptly alert other control points on the UPnP network. | 12-10-2009 |
20100040079 | MULTICASTING IN A NETWORK USING NEIGHBOR INFORMATION - In one aspect, a method to multicast in a network includes determining using a processor a least amount of relay nodes for use in multicasting a message to nodes in the network by using a neighbor matrix of a source node used in Node Activation Multiple Access (NAMA) scheduling. The method may include designating a one-hop neighbor that exclusively accesses the two-hop neighbor of the source node as a relay node. The method may also include designating a one-hop neighbor of the source node with accessibility to a maximum number of two-hop neighbors of the source node as a relay node. | 02-18-2010 |
20100074270 | METHOD AND APPARATUS FOR SCALABLE VIRTUAL PRIVATE NETWORK MULTICASTING - In one embodiment, the present invention is a method and apparatus for scalable virtual private network multicasting. In one embodiment a service network builds a new data multicast distribution tree for each high-bandwidth multicast data flow (e.g., multicast data flows that require an amount bandwidth meeting or exceeding a predefined threshold). However, if the multicast data flow is a low-bandwidth flow (e.g., if the required amount of bandwidth falls below the predefined threshold), the multicast data flow is routed over an existing multicast distribution tree in order to minimize an amount of state information that must be maintained by service provider core routers in the backbone network. | 03-25-2010 |
20100172368 | MEDIA ACCESS CONTROL FOR A SET OF DOWNSTREAM AND UPSTREAM CHANNELS IN A SHARE-MEDIA NETWORK - In a point to multi-point share-media network, method and apparatus of media access control (MAC) for a modem termination system (MTS) to communicate with a plurality of modems over a set of downstream and upstream channels comprising the steps of designating a MAC domain comprising the set of downstream and upstream channels, in which a primary downstream channel and a primary upstream channel being chosen from the set of channels for MAC message exchanges between the MTS and the modems; establishing synchronization with the modems; calibrating upstream transmission parameters and registering each of the modems; receiving without error a bandwidth request from the modem in one of the allocated contention transmission time slots; and transmitting a bandwidth grant to the modems to transmit a number of bytes, starting at a specified time and at a periodic time interval thereafter, with a specified burst profile, and in a specified upstream channel. | 07-08-2010 |
20100189124 | Method and Arrangement for Improved Media Session Management - In a method for media session management a user terminal upon detecting SO, SOO switching to a media stream on a channel from a unicast transport source, requesting S | 07-29-2010 |
20100303091 | SYSTEM AND METHOD FOR DYNAMICALLY ASSIGNING VALUES IN A NETWORK - The embodiments described herein present methods and apparatus for dynamically assigning values in a network. A method includes receiving, at a designated value allocator from a network node, a first broadcast message using a link-state protocol. The method then identifies the first broadcast message as including a request to associate a parameter value to the network node and allocates an assigned parameter value to the network node based on the identification of the request included in the first broadcast message. A message that includes the assigned parameter value is then transmitted to the network node. Other embodiments are described. | 12-02-2010 |
20110019688 | Forward Channel Sharing Method in Time Division Communication System - A method for realizing forward channel sharing in time division communication system, which completes group configuration at the cluster control service center server and modifies the attributes of all the users to enable the users to support multi-user packet MUP service, including: (a) the cluster user initiates a group call; the access network allocates a unique group identifier MACIndex for the group call after receiving the call request from the calling cluster user and informs all of the users within the group about this MACIndex ( | 01-27-2011 |
20110149992 | METHOD AND APPARATUS FOR IMPOSING PREFERENCES ON BROADCAST/MULTICAST SERVICE - An apparatus for imposing preferences on broadcast/multicast service for an end-user is described herein. The apparatus includes a first tuner that receives a first set of data transmitted from a currently selected broadcast/multicast station, wherein the first set of data includes time, station identification, and program information; a second tuner that receives a second set of data from a plurality of broadcast/multicast stations, wherein the second set of data includes individually, for each broadcast/multicast station that is available, time, station identification, and program information; a decoder that decodes the first and second sets of data received by the first and second tuners and sends this decoded data to a decision engine for further processing; and a persona database that stores a plurality of user preference profiles. Further, the decision engine is periodically operative to evaluate the currently selected station, and choose a different station if applicable, based on a preference profile selected by the end-user. | 06-23-2011 |
20110310910 | SUB-CHANNEL AND POWER ALLOCATION METHOD AND APPARATUS FOR MULTICAST TRANSMISSION USING AN ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS SCHEME - A method and apparatus are described including allocating one of a plurality of sub-channels to one of a plurality of multicast group clients for a multicast session and performing bit-loading for the allocated sub-channel, wherein said performing act further includes finding one of the plurality of multicast group clients having a lowest received bit rate, finding one of the plurality of sub-channels needing a lowest power to transmit one more bit to the one of the plurality of multicast group clients having the lowest received bit rate, comparing the needed power to a residual power, adding one more transmission bit to the sub-channel if the needed power is not greater than the residual power and updating a multicast rate, the residual power and the power need to transmit one more bit if the needed power is not greater than the residual power. | 12-22-2011 |
20120008638 | APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING MULTICAST BROADCAST SERVICE DATA - An MBS transmitting apparatus allocates a plurality of time intervals of an MBS transmission carrier to an MBS region and a non-MBS region and generates region allocation information of the MBS region and the non-MBS region. The MBS transmitting apparatus allocates the time intervals, allocated to the MBS region, to one or more MBS zones and generates MBS zone allocation information of the one or more MBS zones. The MBS transmitting apparatus transmits the region allocation information and the MBS zone allocation information and transmits the MBS data through the time intervals allocated to the MBS region. | 01-12-2012 |
20120057604 | METHOD AND APPARATUS FOR TRANSMITTING MBMS SERVICES - A transmission method for Multicast Broadcast Single Frequency Network (MBSFN), which can realize the multiplexing of Multimedia Broadcast/Multicast Service (MBMS) services with different Modulation and Coding Scheme (MCS)/Service Data Unit (SDU) error rates. The method comprises the steps of: dividing a plurality of services to be transmitted into multiple service groups according to error rates, each service group including at least one service; transmitting the plurality of services according to the service groups, wherein the respective services in each service group are transmitted in turn according to a predetermined sequence. By applying the method and the apparatus, MBMS services having different MCS/SDU error rates can be multiplexed and transmitted to UEs in the MBSFN. | 03-08-2012 |
20120069852 | NETWORK SYSTEM - The network system includes a controller ( | 03-22-2012 |
20120099604 | HOME NETWORK APPARATUS - The invention relates to a Residential Broadband Cable Communicator for communicating over two or more types of cables within a house, each type of cables defines a channel, comprising (a) a first port connected to a home Ethernet device, (b) plurality of second ports each of said second ports being connected respectively to one of said channels, (c) a HomePlug modem for receiving data from said Ethernet device through said first port, and transmitting the same simultaneously through two or more of said second ports over two or more of said channels respectively to another Residential Broadband Cable Communicator, and for receiving a selected best quality data signal from a selector, and conveying the same to said Ethernet device, (d) a selector | 04-26-2012 |
20120128009 | SUBSET CODING FOR COMMUNICATION SYSTEMS - A method for data encoding and associated decoding is based on the concept of batches that allows transmission of a large data file from a source node to multiple destination nodes through communication networks that may employ network coding wherein sparse matrix codes are employed in a network setting. A batch is a set of packets generated by a subset of the input packets using sparse matrix encoder. A sparse matrix encoder can be called repeatedly to generate multiple batches. The batches are generally independent of one another. During the transmission in a communication network, network coding can be applied to packets belonging to the same batch to improve the multicast throughput. A decoder recovers all or at least a fixed fraction of the input packets using received batches. The input packets can be pre-coded using a pre-code before applying sparse matrix codes. The data file can then be reconstructed by further decoding the pre-code. | 05-24-2012 |
20120163397 | POINT-TO-MULTIPOINT DATA COMMUNICATIONS WITH CHANNEL ASSOCIATED SIGNALING - Systems and methods for point-to-multipoint communications with CAS are provided. In one embodiment, a line unit comprises: an interface to communicate with a node using a first frame structure comprising timeslots, the frame structure transporting signaling bits in an x'th timeslot; the unit coupled another line unit via a communication link, wherein the other unit communicates with another network node using a second frame structure comprising timeslots, the second frame structure transporting signaling bits via its x'th timeslot. Payload timeslots for a first frame received from the other line unit are mapped from the second frame structure to payload timeslots of a second frame using the first frame structure and transmitted via the interface. The x'th timeslot for each of the first and second frame structures are formatted in a multiframe structure comprising a schedule of signaling bit locations allocated to signaling bits corresponding to a designated payload timeslot. | 06-28-2012 |
20120195325 | ALERT MESSAGE PORTAL TO SECURELY NOTIFY SUBSCRIBERS OF EVENTS - The present invention provides a method of operating a communication portal. One embodiment of the method includes accessing, at the communication portal, an alert message addressed to a group registered to receive an alert service. The method also includes generating user identifiers corresponding to users that are registered to the group. The user identifiers are assigned to the users for use within the communication portal. The method further includes transmitting the alert message from the communication portal to the users indicated by the user identifiers. | 08-02-2012 |
20120230347 | METHOD AND USER TERMINAL FOR RECEIVING MULTICAST CONTROL CHANNEL CHANGE NOTIFICATIONS - The embodiments of the present invention disclose a method and user terminal for receiving multicast control channel (MCCH) change notifications, which include: obtaining the transmission time of an MCCH change notification; and when the MCCH change notification is not received during one MCCH modification period, receiving, according to the transmission time of the MCCH change notification, the MCCH change notification at least N times, wherein N is the preset reception times of the MCCH change notification. In the present invention, the efficiency of receiving MCCH change notifications by user terminals is improved, and the probability of processing MCCH change notifications falsely due to too many network identifiers in a physical downlink control channel (PDCCH) is reduced. | 09-13-2012 |
20120236873 | Method for real-time data transmission in a communication network - A method for real-time data transmission in a communication network for transmitting useful data from a transmitter to a plurality of receivers, wherein the receivers are synchronized in terms of time via a synchronization method, at least one time for transmitting a respective useful data message to the receivers is stipulated during real-time data transmission, each of the receivers is assigned its own receiver useful data area within the useful data message, which area is assigned to the receiver, and the transmitter transmitting a useful data message. In accordance with the invention, a first of the receivers receiving this useful data message, stores the useful data contained in the receiver useful data area assigned to it for further processing, and forwards the useful data message to a second of the receivers at the transmission time. | 09-20-2012 |
20120307840 | DYNAMICALLY CONSTRUCTING A BROADCAST MULTIPLEX - A method and apparatus for dynamically constructing a broadcast multiplex are described. The method includes: receiving metadata associated with a first plurality of events on a plurality of source channels, the metadata including, at least, scheduling metadata; determining, on the basis of a rule-set applied to the metadata, whether events of the first plurality of events are to be included in the multiplex, thereby producing a second plurality of events to be included in the multiplex; for each one event of the second plurality of events, assigning a multiplex priority to the one event, the multiplex priority being a priority the one event is to be assigned in the multiplex in case the one event contends for space in the multiplex with a second event of the second plurality of events; copying events from the second plurality of events into the multiplex in dependence on the multiplex priorities of events in the second plurality of events; and broadcasting the multiplex. Related systems, apparatus, and methods are also described. | 12-06-2012 |
20130230056 | Data Volume Reporting for Multimedia Broadcast/Multimedia Service Groups - Multicast/broadcast messaging service (MBMS) arrangement, in which a broadcast/multicast service centre delivers multimedia messages to a plurality of users via a gateway GPRS support node (GGSN) and via a serving GPRS support node (SGSN) and a radio access network (RAN), in association with a given temporary mobile group identity (TMGI) and using a single radio access bearer (RAB). Responsive to a given event, the SGSN sends to the RAN a data volume report query identifying said RAB by the TMGI or another unique parameter. The RAN responds with a data volume report that indicates the amount of unsent MBMS data. If so agreed, the SGSN will pass said amount to a charging gateway for compensation in charging for the MBMS service. | 09-05-2013 |
20130235882 | CHANNEL BONDING FOR LAYERED CONTENT - Different data communication architectures deliver a wide variety of content, including audio and video content, to consumers. The architectures employ channel bonding to deliver more bandwidth than any single communication channel can carry. In some implementations, the communication architectures distribute video programming across the communication channels in the bonded channel group based on the dependency of the video data. | 09-12-2013 |
20130266023 | Method and System for Computing Multicast Traffic Matrices - A system and method for receiving, from one or more ingress routers, a first set of records including data corresponding to network traffic, receiving, from one or more egress routers, a second set of records including data corresponding to network traffic and creating a multicast traffic matrix using at least a portion of the data included in the first and second sets of records. | 10-10-2013 |
20140133494 | METHOD, APPARATUS, AND SYSTEM FOR MULTIPLE ACCESS - Embodiments of the present invention provide a method, an apparatus, and a system for multiple access. The method includes: receiving, by a network device, a data packet, where the data packet includes identifier information about a terminal; querying, according to the identifier information about the terminal, a correspondence table between identifier information about a terminal and a broadcast channel, and determining a broadcast channel corresponding to the identifier information about the terminal, where the determined broadcast channel is a broadcast channel among a plurality of preset broadcast channels, and the terminal is any terminal in a terminal group corresponding to the determined broadcast channel; and sending, according to the identifier information about the terminal, through the determined broadcast channel, the data packet to the terminal. | 05-15-2014 |
20140269756 | PORT MEMBERSHIP TABLE PARTITIONING - A firmware model is provided for a shared port membership table that is partitioned for different needs of a distributed network switch, such as broadcast groups, multicast groups, ACL rules, and other port membership groupings. The shared port membership table enables a control point to set the size of each of the types of port membership information based on their usage or expected usage. By shrinking one partition, the control point is able to use the port group entries for a different partition of port group information. | 09-18-2014 |
20140269757 | METHOD AND APPARATUS FOR ALLOWING PLAYBACK DEVICES TO PERFORM SYNCHRONIZED PLAYBACK OF STREAMING CONTENT - An apparatus and method for allowing a plurality of playback devices to stream content of a master device simultaneously is provided. When the master device selects one of the playback devices as a reference device and multicasts a synchronization packet to the playback devices, the playback devices determine a synchronization time by comparing their own synchronization packet reception time with a synchronization packet reception time of the reference device. When the master device streams content, into which a time stamp is inserted based on the time of the reference device, the playback devices play the content based on the determined synchronization time. Therefore, even when the playback devices have different network latencies from the master device, the playback devices may accurately perform synchronized content playback. | 09-18-2014 |
20150063370 | CHANNEL LOADING FOR ONE-TO-MANY COMMUNICATIONS IN A NETWORK - A master network device determines to transmit data from the master network device to a plurality of client network devices of a network. In one example, the master network device can generate a data frame including a payload with a plurality of symbols. The payload may include at least one symbol allocated for each of the client network devices. The plurality of symbols may be arranged in a predefined pattern in the payload. In another example, the master network device may generate a data frame including a payload with one or more symbols. Each symbol may include a plurality of frequency carriers, and may include at least one frequency carrier allocated for each of the client network devices. The plurality of frequency carriers can be allotted to the client network devices according to a partitioning pattern. The master network device then transmits the data frame to the client network devices. | 03-05-2015 |
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