Abstract: Systems and methods are provided for managing and delivering status notifications relating to multicast messages transmitted from a sending communication device to multiple recipient communication devices. Each communication device is provided with a status agent for detecting transmission of messages to a recipient device and receipt of messages from a sending device. Upon transmission, the status agent notifies a status service of the outbound message. Upon receipt of the multicast message by one of the recipients or upon the message being marked read, the recipient status agent notifies the status service. The status service then notifies the status agent of the sending device that the message has been received or read by that recipient, so that the sending device's status agent can notify a corresponding messaging application. The status service operates to reconcile outbound message notifications and received or read status updates for multicast messages.

Abstract: A method of storing and retrieving digital files from a storage system comprising requesting one or more files through a server which compares the timestamp of each file to the present time to determine an elapsed time for each file. The server then requests a storage system for each file having an elapsed time less than or equal to a pre-determined time limit using an internal-retry request and requests from the storage system each file having an elapsed time greater than a pre-determined time limit using a fail-fast request.

Abstract: A method for fast and efficient data downloading in wireless communications. The method includes ways to download file data of a large size from a server (access point) to a user's client (mobile device) at high speed and efficiency by using both mmWave wireless communication and conventional wireless communication (WiFi, 3G, etc.). A server transmits packetized file data to a client. The file data is transmitted as data packets via mmWave. In parallel, the server transmits check packets (roll-call packets) corresponding to the data packets. As a test at the time of establishing links, the latency for each communication line is measured. The receiver side, upon completion of receiving the check packets, checks whether their corresponding mmWave packets have arrived. If any corresponding mmWave packet has not arrived, it is determined that the mmWave packet has been lost and a retransmission request is immediately returned to the server via WiFi.

Abstract: A system and method are disclosed for the repair of IP multicast sessions. A repair server polls multiple transmit servers to accumulate as many of the packets missing from the multicast session as possible. A network includes a source of multicast packets in a multicast session and a plurality of multicast recipients in that session. A repair server in the network provides the packets it receives to the recipients. The repair server includes a missing packet detector. There is a plurality of retransmit servers in the network buffering portions of the packets they respectively receive during the session. The repair server maintains an ordered list of the retransmit servers that are most likely to have buffered copies of packets missing from the session. When the repair server detects that there are packets missing from the session it has received, it uses the ordered list to sequentially request the missing packets from respective ones of the plurality of retransmit servers.

Abstract: Various exemplary embodiments relate to a method and related network node including one or more of the following: receiving, at a policy and charging rules node (PCRN), a request from a requesting node for an establishment of a first service data flow (SDF); generating a first rule set for implementing the first SDF in response to the request; transmitting a first rule of the rule set to a first node for installation of the first rule; waiting for a period of time for a response from the first node; determining from the response whether installation of the first rule at the first node failed or succeeded; and if installation of the first rule succeeded, transmitting a second rule of the first rule set to a second node for installation of the second rule.

Abstract: A system includes a memory configured to store executable code and a processor operably coupled to the memory. The processor is configured to execute the code to receive a request from a developer of a first web application to provide a notification corresponding to the first web application, authenticate the developer using a client identifier, after authenticating the developer, receive a content of the notification and a first user identifier, and provide the content of the notification to at least one of a plurality of computing devices associated with the first user identifier, based on an account associated with the first user identifier.

Abstract: Systems and methods for transfer of data including establishing two separate connections, the two separate connections including a high speed connection and a high integrity connection. Blocks of data are exchanged over the high speed connection while the high integrity connection facilitates communication of descriptor data regarding data received over the high speed connection. As such, the data transfer speed of the high speed connection is utilized while communication via the high integrity connection allows for data reliability features not provided by the high speed connection.

Abstract: A messaging system comprises a message source, a message receiver and a message service. The message service is intermediate of the message source and message receiver, and a compensation component is established at the message source. A one way message is transmitted from the message source, where the one-way message is part of a plurality of one way messages of an overall business transaction. The message is received at the message service and is transmitted to the message receiver, which processes the received message. The message receiver transmits a communication indicating success or failure of the processing of the message. The system causes compensation logic defined by a compensation component to execute responsive to receiving an indication of a failure of part of the overall business transaction despite the communication from the message receiver indicated that processing of the particular one way message succeeded.

Abstract: An approach for providing incomplete action monitoring and service for data transactions is described. Incompleteness of a transaction event associated with an application is monitored. The incompleteness of the transaction event is detected in response to a failure in a communication session that transports data of the application. State information relating to transmission of the data for the application is stored. The restoration of the communication session is determined. Completion of the transaction event is initiated based on the stored state information.

Abstract: Provided is an error correcting method that can provide improved error correction efficiency in a multimedia broadcast/multicast service (MBMS) by marking the presence of an error in a Protocol Data Unit (PDU) with an error instead of discarding the erroneous PDU in an MBMS terminal of the MBMS system, which performs error correction in an application layer, and transmitting the erroneous PDU together with a PDU without an error to the application layer, and an error correction apparatus employing the method. The MBMS terminal includes: a radio link control (RLC) protocol processor configured to receive PDUs generated from the reception data, generate service data units (SDUs) by combining the PDUs, mark whether there is an SDU recovered from a PDU with an error, and output the SDUs; and a packet data convergence protocol (PDCP) processing means configured to receive and deliver the SDUs.

Abstract: Methods and systems associated with re-transferring data that was unsuccessfully transmitted to a host are described. According to one embodiment method includes receiving a first command to transfer data to a host, wherein the data is arranged in blocks. The data is transferred to the host. When an unsuccessful status is received from the host indicating a transmission error occurred for the first command, a block being transferred when the transmission error occurred is identified. The data in the identified block is re-transferred to the host without re-transferring successfully transferred blocks.

Abstract: Various embodiments enable automatic cooperative logging of information associated with a connection between at least two computing devices. In some cases, a first computing device can automatically trigger logging on a second computing device upon detection of at least one scenario. Alternately or additionally, the second computing device can respond to the first computing device with additional and/or supplemental logging requests.

Abstract: A conference system is provided with enhanced settings capabilities. A controller can poll for settings at each endpoint in a conference system and be able via the video stream to selectively display and compare settings among the endpoints. One location can push its settings to one or more locations to overcome failures or degradation in the conference. The settings between different controllers may be rationalized via a common denominator method or tabular method to build a knowledge of how to configure conferences and to automate responses to problems.

Abstract: The invention provides for the connection of a plurality of remote applications with a data source, to maximize the speed and reliability of data transfer. An interface module interfaces with a remote application such as a web browser. A port module interfaces between interface module and a data source. A connection manager facilitates the interface between the interface module and the port module. The port module detects the unavailability of the data source in response to an initial request for the data source by the remote application. The port module may then dynamically detect the availability of the data source in response to a subsequent request for the data source and re-connect to the data source to the remote application in response to the subsequent request without having to reinitialize the connection manager.

Abstract: Techniques for recovering from session failures between clients and database servers are described herein. A session may be established between a client and a first database server to handle a database query for the client. A command of the session may be received by the first database server from the client. Data requested by the command may be retrieved. Prior to responding to the command, the data is spooled to a session state stored in a repository of the first database server, and the session state is replicated to one or more additional database servers. The session state stored in the repository of the first database server enables the first database server and client to recover from a failure of the session. The replicated session state enables the additional database server(s) to reestablish the session and respond to the command, instead of the first database server, if the session fails.

Abstract: A method and non-transitory computer-readable medium are disclosed for extending a hold timer that binds an application-layer session when a transport-layer out-of-order message queue includes an out-of-order message for the application-layer session. An application receives an application-layer message from transport protocol logic that is configured to deliver in-order application-layer messages to the application. The received application-layer message is a next in-order application-layer message for an application-layer session that is bound by a hold timer. After an amount time has passed, the application detects an expiration of the hold timer. In response, rather than immediately tearing down the application-layer session, the application inspects an out-of-order queue of the transport protocol logic. The hold timer is extended when the out-of-order queue includes an out-of-order application-layer message for the application-layer session.

Abstract: An optical information recording and reproducing apparatus and an optical information recording and reproducing method which make it possible to conduct alternation processing efficiently even if a buffer capacity is limited, in retry processing at time when a verify error is detected are provided. In an optical information recording and reproducing apparatus for recording data onto optical information recording media and reproducing data from the optical information recording media, verify processing is conducted in a predetermined recording quantity unit. Upon detection of a verify error in recorded data, a host computer is requested to retransfer data which has caused the verify error, and received data is intruded in a next scheduled recording quantity unit and recorded onto the optical information recording media.

Abstract: A reconfigurable processor invoking data stream pipelining is configured to associate a restore buffer with each incoming data stream. The buffer is configured to be of sufficient size to maintain data values dispatched to a loop so as to restore values fetched and lost due to loop overshoots. The restore buffer stores the values that were recently fetched from the buffer to the loop. To determine how many data values should be restored, the loop counts the number of the data values it takes from each data stream and the number of valid loop iterations that take place. Once a loop termination is detected, the loop halts the fetching of values from the restore buffer and compares, for each stream, the number of loop iterations with the number of values fetched. The difference is the number of extra values that were taken from the restore buffer and are restored.

Abstract: A method begins by a processing module dispersed storage error encoding data to produce a set of encoded data slices and sending a set of write request messages to a set of dispersed storage (DS) units, wherein each of the set of write request messages includes an encoded data slice of the set of encoded data slices. The method continues with the processing module determining whether a pillar width number of favorable write response messages has been received within a write acknowledgement (ACK) time period. The method continues with the processing module executing a retry write process to at least one DS unit of the set of DS units from which a favorable write response message was not received during the write ACK time period when the pillar width number of favorable write response messages has not been received within the write ACK time period.

Abstract: Provided is a communication system which includes a plurality of game apparatuses. Each game apparatus performs short-range wireless communication with another game apparatus among the plurality of game apparatuses. Through the short-range wireless communication, the game apparatus receives identification information of the other game apparatus (other-apparatus identification information) from the other game apparatus. The game apparatus detects the communication status of the short-range wireless communication with the other game apparatus. Based on the detection result, the game apparatus determines whether or not to register the other game apparatus which is associated with the received other-apparatus identification information. When determining to register the other game apparatus, the information processing apparatus registers the other game apparatus and performs communication with the registered other game apparatus.

Abstract: In accordance with disclosed embodiments, there are provided methods, systems, and apparatuses for implementing a streaming platform IO pump and regulator including, for example, means for executing an application at the computing device; requesting data for the application from a second computing device communicably interfaced with the first computing device via a public Internet; calculating an estimated arrival time for the data to be returned from the second computing device; determining the data fails to arrive within the estimated arrival time calculated; initiating a new connection to the second computing device; and re-sending the request for the data for the application to the second computing device via the new connection. Other related embodiments are disclosed.

Abstract: On a typical motherboard the processor and memory are separated by a printed circuit data bus that traverses the motherboard. Throughput, or data transfer rate, on the data bus is much lower than the rate at which a modern processor can operate. The difference between the data bus throughput and the processor speed significantly limits the effective processing speed of the computer when the processor is required to process large amounts of data stored in the memory. The processor is forced to wait for data to be transferred to or from the memory, leaving the processor under-utilized. The delays are compounded in a distributed computing system including a number of computers operating in parallel. The present disclosure describes systems, method and apparatus that tend to alleviate delays so that memory access bottlenecks are not compounded within distributed computing systems.

Abstract: A system and technique for managing rollback in a transactional memory environment is disclosed. The system includes a processor, a transactional memory, and a transactional memory manager (TMM) configured to perform a rollback on the transactional memory. The TMM is configured to, responsive to detecting a begin transaction directive by the processor, detect an access of a first memory location of the transactional memory not needing rollback and indicate that the first memory location does not need to be rolled back while detecting an access to a second memory location of the transactional memory and indicating that a rollback will be required. The TMM is also configured to, responsive to detecting an end transaction directive after the begin transaction directive and a conflict requiring a rollback, omit a rollback of the first memory location while performing rollback on the second memory location.

Abstract: Disclosed in some examples is a method of media repair in an IMS based network, the method includes communicating with an IMS network using SIP to setup a download session with a BMSC over a MBMS bearer; responsive to determining that one or more received encoding symbols of media downloaded using the established MBMS bearer cannot be decoded: requesting a file repair procedure from the IMS network component using a SIP re-invite request, the SIP re-invite request including an address of an HTTP repair server indicated by the IMS network component during the MBMS bearer setup; responsive to receiving a SIP acknowledgement indicating that the request was successful, requesting an HTTP connection with the HTTP server to re-download the one or more encoding symbols of the media that could not be decoded; and receiving the one or more encoding symbols from the HTTP server.

Abstract: A method of detecting an error in write data includes generating first error detection data based on first write data to be written to a buffer memory, generating second error detection data based on second write data related with the first write data, comparing the first error detection data with the second error detection data, and generating an error detection signal according to a comparison result.

Abstract: An apparatus and method of transmitting ACK/NACK (acknowledgement/negative ACK) information in downlink and an apparatus and method of receiving the ACK/NACK information are disclosed. The present invention configures ACK/NACK information on multiple UL codeword transmission using a PHICH and at least one NDI, whereby the ACK/NACK information on the multiple UL codeword transmission is transmitted to a user equipment without additional PHICH resource allocation. The present invention extends the conventional HI codeword and/or arranged position on a signal constellation, thereby transmitting ACK/NACK information on multiple UL codeword transmission to a user equipment without additional PHICH resource allocation.

Abstract: According to one aspect of the present disclosure, a method and technique for managing rollback in a transactional memory environment is disclosed. The method includes, responsive to detecting a begin transaction directive by a processor supporting transactional memory processing, detecting an access of a first memory location not needing rollback and indicating that the first memory location does not need to be rolled back while detecting an access to a second memory location and indicating that a rollback will be required. The method also includes, responsive to detecting an end transaction directive after the begin transaction directive and a conflict requiring a rollback, omitting a rollback of the first memory location while performing rollback on the second memory location.

Abstract: A method for controlling and monitoring, from a server, transfers of jobs from clients connected in the network to shared resources connected in the network.

Abstract: A method for controlling and monitoring, from a server, transfers of jobs from clients connected in the network to shared resources connected in the network.

Abstract: A method for controlling and monitoring, from a server, transfers of jobs from clients connected in the network to shared resources connected in the network.

Abstract: A method for initiating a storage window of a receiving end in a wireless communications system, which periodically retransmits previously transmitted data packets in an unacknowledged mode, includes receiving a first PDU after a receiving entity of the receiving end is established, re-established, or after a timer expires, and initiating a state variable, which is defined to be a sequence number of the highest numbered packet that has been received, according to a sequence number of the first received packet. An example of the wireless communications system is the Universal Mobile Telecommunications System (UMTS) with a multimedia broadcast/multicast service (MBMS) application.

Abstract: Disclosed is a status report transmission of the PDCP layer for a PDCP status report which can reduce radio resources, by transmitting the reception success or failure of a series of PDCP SDUs in the form of a bitmap when configuring the PDCP status report for reporting a reception status of the PDCP SDU to another party in the PDCP layer in the LTE system.

Abstract: Method and system are disclosed for redelivering failed messages in asynchronous communication systems. The methods and systems automatically delay redelivery of such failed messages in order to allow required system resources to become available. In one implementation, the methods and systems provide two levels of redelivery: a micro level in which redelivery is attempted right away for a certain number of times, and a macro level in which a predefined, user-selectable delay is imposed before any additional micro level redeliveries are attempted. After a certain number of unsuccessful macro level redeliveries, the message is backed out to a backout queue for manual intervention by a system operator. Such an arrangement reduces or eliminates the burden on the system operator to manually resolve failed message deliveries.

Abstract: A system and method are disclosed for the repair of IP multicast sessions. A repair server polls multiple transmit servers to accumulate as many of the packets missing from the multicast session as possible. A network includes a source of multicast packets in a multicast session and a plurality of multicast recipients in that session. A repair server in the network provides the packets it receives to the recipients. The repair server includes a missing packet detector. There is a plurality of retransmit servers in the network buffering portions of the packets they respectively receive during the session. The repair server maintains an ordered list of the retransmit servers that are most likely to have buffered copies of packets missing from the session. When the repair server detects that there are packets missing from the session it has received, it uses the ordered list to sequentially request the missing packets from respective ones of the plurality of retransmit servers.

Abstract: The invention relates to a method for packet-switching transmission of media data and a device for processing media data. Media data may be video, audio or text data, or other data. Transmission of the data is usually effected according to a streaming method. The data is therein transmitted in packets and re-assembled in the receiving device. For Internet applications, the real-time transport protocol is very widely used in the transmission of data streams. However, this data transmission protocol does not enable a secure transmission which is based on a repetition of the defectively transmitted data. Sequence counters are used according to this protocol so that left-out data packets can be detected in the receiving device.

Abstract: A root cause for a failed attempted delivery of a message is attempted to be determined before sending a non-delivery report (NDR) for the failed message. When a message fails without a known cause, the root cause is determined using the context of the message. For a given context, the root cause may be determined by a single failure or it may be determined by the relative number of failed messages delivery are deferred from being delivered, as is generation of the corresponding same context. While determining the root cause of the problem, any messages failing NDR(s), to allow time for corrective action to occur. If the problem is resolved within a predetermined time period, the deferred messages are delivered without having to issue NDR(s).

Abstract: A distributed memory architecture for a layer 2 processing circuit chip (50) is described. In one implementation, the layer 2 processing circuit chip (50) comprises an external memory interface configured to provide access to data packets stored in an external memory (52), a layer 2 processor (54) coupled to the external memory interface (56) and configured to process data packets retrieved from the external memory (56) to generate RLC SDUs, and an on-chip memory (58) coupled to the layer 2 processor (54) and configured to store the RLC PDUs generated by the layer 2 processor (54) prior to their transmission. Upon a request to retransmit an RLC PDU, the layer 2 processor (54) is configured to selectively read the RLC PDU to be retransmitted from the on-chip memory (58) or a data packet comprising the RLC PDU to be retransmitted from the external memory (52).

Abstract: A computer implemented method, apparatus, and computer program product for determining a state associated with a transaction for use with a transactional processing system comprising a transaction coordinator and a plurality of grouped and inter-connected resource managers, the method comprising the steps of: in response to a communications failure between the transaction coordinator and a first resource manager causing a transaction to have an in doubt state, connecting to a second resource manager; in response to the connecting step, sending by the transaction coordinator to the second resource manager, a query requesting data associated with the in doubt transaction; obtaining at the first resource manager, by the second resource manager, a shared lock to data associated with the in doubt transaction; and in response to the obtaining step, collating, by the second resource manager, data associated with the in doubt transaction associated with the first resource manager.

Abstract: The present invention concerns a file repair method for recovering a file, in a system for distributing content to more than one receiver, comprising, at a first receiver, the steps of receiving a set of files in a push multicast from a transmitter, receiving an identifier of a second receiver that owns a missing file that is not comprised in the received set of file; and recovering the missing file from the second receiver in a pull mode using a peer-to-peer mechanism. Another object of the invention is a method for file recovery in a server and in a peer device.

Abstract: An apparatus and a method for Automatic Repeat reQuest (ARQ) feedback in a wireless communication system are provided. A method for the ARQ feedback at a receiving end includes when receiving an ARQ block from the transmitting end, checking for error in the ARQ block, when the ARQ block has no error, initializing and driving a timer used for determining whether to perform the ARQ feedback according to reception of a next ARQ block, when receiving the next ARQ block without error before the timer expires, initializing and driving the timer, and when the timer expires, performing the ARQ feedback in relation to at least one ARQ block received without error.

Abstract: Various exemplary embodiments relate to a method and related network node including one or more of the following: receiving, at a policy and charging rules node (PCRN), a request from a requesting node for an establishment of a first service data flow (SDF); generating a first rule set for implementing the first SDF in response to the request; transmitting a first rule of the rule set to a first node for installation of the first rule; waiting for a period of time for a response from the first node; determining from the response whether installation of the first rule at the first node failed or succeeded; and if installation of the first rule succeeded, transmitting a second rule of the first rule set to a second node for installation of the second rule.

Abstract: The invention discloses a method (200) for use in a cellular system (100) with an RBS (120) which controls traffic to and from a cell (110), with one User Equipment, UE (130, 140), in the cell. The RBS and the UE receive and transmit information between each other, one of them being a sending party and the other one is a receiving party, and errors in messages (BSN 1, BSN 4) which are received can be detected by the receiving party by a first error detection method and if errors are detected in received messages, the receiving party can request a retransmission from the transmitting party. The receiving party stores the order in which retransmissions are requested, so that erroneous retransmissions may be detected by the receiving party without the first error detection method.

Abstract: A system for transferring a live application from a source to a target machines includes memory capture component that monitors and captures memory segments associated with one or more memories, one or more sets of these memory segments comprising one or more applications, the memory segments changing while the live application is in execution. A frequency ranking component organizes the memory segments in an order determined by memory segment change frequency. A link identification component identifies one or more connecting links to one or more sets of peer machines, each set of machines connecting said source machine to said target machine, the link identifier further determining the bandwidth associated with each connecting link. A routing component preferentially routes one or more of the memory segments over said connecting links based on said order.

Abstract: A data transmission apparatus transmits first and second data to transmission destinations, respectively. Upon completion of transmission of the second data, the data transmission apparatus instructs the transmission destination of the first data to confirm transmission processing of the first data that is transmitted before the second data is transmitted.

Abstract: A memory access control device has a memory control unit and a software execution unit executing software. The memory control unit has: a data transmission unit configured to perform multicast transfer that reads a data from the memory and transmits the data to data transfer destinations through a network; a data reception unit configured to receive multicast transfer data from the network; and a reception data counter configured to indicate a number of multicast transfer data received by the data reception unit. The software execution unit instructs the memory control unit to perform a plurality of multicast transfers and then reads respective reception data counters of the data transfer destinations for each checkpoint in sequence of the software to determine completion of the plurality of multicast transfers.

Abstract: Methods and systems for performing a restart operation in a storage device include in response to receiving an unsuccessful status from the host indicating a transmission error occurred for the first command, determining in which one of the logical blocks the transmission error occurred and from which data needs to be resent, thereby identifying a restart logical block. The number of blocks in the restart logical block that were sent successfully are calculated, and it is determined that the block immediately following the blocks sent successfully is the block in which the transmission error occurred and from which the data needs to be resent, thereby identifying a restart block. An amount of data successfully sent in the restart block is determined; and an indication is provided to resend at least a portion of the data in the restart block to the host.

Abstract: An approach for providing incomplete action monitoring and service for data transactions is described. Incompleteness of a transaction event associated with an application is monitored. The incompleteness of the transaction event is detected in response to a failure in a communication session that transports data of the application. State information relating to transmission of the data for the application is stored. The restoration of the communication session is determined. Completion of the transaction event is initiated based on the stored state information.

Abstract: Pushing data to mobile devices can be problematic because mobile platforms may support a number push services, each of which have different cost and reliability characteristics. The problem of being able to push data to multiple different types of mobile devices from a single server is solved by a push service aggregator supporting multiple push services. Upon receiving a push request, one or more push services are selected for pushing data to a client. The selection may be based on a delivery profile included with the push request, information about the client, past performance of the push services, current status of the push services, or combinations of these. The status of the push may be tracked and monitored so as to retry in the case of non-delivery.

Abstract: On a typical motherboard the processor and memory are separated by a printed circuit data bus that traverses the motherboard. Throughput, or data transfer rate, on the data bus is much lower than the rate at which a modern processor can operate. The difference between the data bus throughput and the processor speed significantly limits the effective processing speed of the computer when the processor is required to process large amounts of data stored in the memory. The processor is forced to wait for data to be transferred to or from the memory, leaving the processor under-utilized. The delays are compounded in a distributed computing system including a number of computers operating in parallel. The present disclosure describes systems, method and apparatus that tend to alleviate delays so that memory access bottlenecks are not compounded within distributed computing systems.

Abstract: A compressed replay buffer in a first electronic unit of an electronic system holds commands in a table. As commands are transmitted from the first electronic unit to a second electronic unit, the command, along with associated data, command type, and the like are stored in a row in the table. No rows in the table contain “dead cycles” to indicate that no command was sent on a particular cycle on a bus over which the commands were transmitted. The second electronic unit may request that the first electronic unit replay some number of commands. In response, the first electronic unit uses commands in the compressed replay buffer, along with required timings stored on the first electronic unit, to replay the number of commands requested.