Abstract: A method and apparatus for data retransmission in a wireless communication network, specifically, for a data packet generation before retransmission, according to available resources, link status, and the like is disclosed. In one embodiment, a method for a data packet retransmission by a wireless communication device, includes: receiving first information from a wireless communication node, wherein the first information comprises a first indicator; and performing a data packet retransmission with a data packet generation according to the indicator.

Abstract: Examples can include (1) identifying, on a network, a source node and a destination node, the source node including at least one source node virtual machine (“VM”) to be replicated as a destination node VM on the destination node, (2) performing a full synchronization by copying disks used by the source node VM in a current operational state to the destination node VM, (3) scheduling start times for multiple update synchronizations of changed data between the source node VM and the destination node VM, the start times being scheduled at different time intervals, wherein a first time interval is greater than a second time interval, and (4) performing, at a switch-over time, a shutdown of the source node VM and transmitting data changes that are pending on the disk to the destination node. Various corresponding systems, methods, and non-transitory computer-readable media are also disclosed.

Abstract: An interface circuit includes: a packet transmitter configured to generate a plurality of transmission packets based on a request, which is output from a core circuit, and output the plurality of transmission packets, the plurality of transmission packets including information indicative of being a packet to be merged; and a packet receiver configured to generate a merged packet by merging a plurality of extension packets from among a plurality of reception packets received from outside the interface circuit, the plurality of extension packets including information indicative of being a packet to be merged.

Abstract: The present disclosure provides methods and apparatuses for transmitting HARQ feedback information, base stations and terminals. The method includes: determining downlink Hybrid Automatic Repeat reQuest (HARQ) configuration information, where the downlink HARQ configuration information informs at least two preset terminals about transmission configuration information of target downlink control signaling; sending the downlink HARQ configuration information to each of the preset terminals; loading the downlink HARQ feedback information for each of the preset terminals into the target downlink control signaling according to the downlink HARQ configuration information; and sending the target downlink control signaling to each of the preset terminals. In the present disclosure, the base station transmits HARQ feedback information with respect to uplink data transmission from a plurality of terminals through the target downlink control signaling, which saves system signaling overhead.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a multi-subscriber identity module (SIM) user equipment (UE) may communicate, using a first SIM, on a plurality of component carriers. The multi-SIM UE may select a first subset of component carriers from the plurality of component carriers based at least in part on a component carrier prioritization. The multi-SIM UE may identify an amount of memory available to a second SIM. The multi-SIM UE may tune away, based at least in part on the amount of memory available to the second SIM, from a second subset of component carriers The first subset of component carriers may be different from the second subset of component carriers. Numerous other aspects are described.

Abstract: A data processing method includes: after receiving an export request for exporting data from the distributed database, acquiring, by a database import and export management node an active transaction list and export table distribution information at a current moment; notifying, by the database import and export management node, a corresponding database that the corresponding database performs a data export operation according to the export table distribution information; after determining that the corresponding database completes the data export operation, sending, by the database import and export management node, the active transaction list to a database agent node of the corresponding database; and after receiving a data consistency reverse compensation statement returned by the database agent node, importing, by the database import and export management node, the data exported by the corresponding database into a predetermined database and instructing the predetermined database to execute the data consist

Abstract: Methods, systems, and devices for wireless communications are described. A downlink message associated with a feedback process identifier may be received at a first time. An uplink feedback message for the downlink message may be scheduled for a third time. Another downlink message associated with the feedback process identifier may be received after the first time and before the third time. Additionally or alternatively, an uplink grant associated with a feedback process identifier may be received at a first time. An uplink message may be scheduled by the uplink grant for a third time. Another uplink grant associated with the feedback process identifier may be received after the first time and before the third time, and another uplink message may be scheduled by the other uplink grant for a fourth time after the third time.

Abstract: Systems and methods are provided for an improved link budged resulting from reduced overhead. The method includes determining a signal to noise and interference ratio (SINR) at a wireless device, comparing the SINR to a predetermined threshold and determining the SINR at the wireless device meets the predetermined threshold. The method additionally includes disabling a hybrid automatic repeat request (HARQ) retransmission mechanism for the wireless device based on the determination that the SINR at the wireless devices meets the predetermined threshold.

Abstract: Log-Based Rollback Recovery for system failures. The system includes a storage medium, and a component configured to transition through a series of states. The component is further configured to record in the storage medium the state of the component every time the component communicates with another component in the system, the system being configured to recover the most recent state recorded in the storage medium following a failure of the component.

Abstract: A data synchronization method and device for databases, and a storage medium are disclosed. The method includes: in the case where transaction response results fed back by multiple data nodes are all successful, receiving transaction commit request messages sent by a client, and writing a global transaction ID into a transaction processing list; sending the transaction commit request messages to the multiple data nodes; receiving transaction commit results fed back by the multiple data nodes; and in the case where the transaction commit results fed back by the multiple data nodes are all successful, applying to a global transaction manager to release the global transaction ID.

Abstract: Apparatuses (including user equipment (UE) and modern chips for UEs), systems, and methods for UE downlink Hybrid Automatic Repeat reQuest (HARQ) buffer memory management are described. In one method, the entire UE DL HARQ buffer memory space is pre-partitioned according to the number and capacities of the UE's active carrier components. In another method, the UE DL HARQ buffer is split between on-chip and off-chip memory so that each partition and sub-partition is allocated between the on-chip and off-chip memories in accordance with an optimum ratio.

Abstract: An amount of writing data to storage devices can be kept low in additional processing for solving the write hole problem. A storage system includes a computer(s), a nonvolatile storage device(s), and a high-speed storage device(s) which can be accessed at a higher speed than the above-mentioned storage device(s), and a drive log including write log information is recorded in the high-speed storage device. When the computer receives a write request for write data, the computer firstly performs drive log check processing and then performs data write processing.

Abstract: A method for facilitating an audit of an event-based business process is provided. The method includes identifying an application in the event-based business process; initiating a subscription with the identified application; recording a published event based on the subscription; correlating, by using a correlation identifier, the recorded published event with the event-based business process, the correlation identifier including a value that references an event chain; and storing, in a memory, the correlated published event based on an event sourcing pattern. The method further includes determining, by using the correlated published event, an anomaly in the event-based business process; and displaying, via a graphical user interface, a notification that includes information relating to the anomaly and a recommended compensating action.

Abstract: A distributed processing management apparatus 10 is connected to a plurality of execution servers 20 so as to be able to communicate with the execution servers 20. The distributed processing management apparatus 10 is provided with a conversion instruction unit 11 configured to specify, for each execution server 20, a data format usable by a machine learning engine executed by the execution server 20, and issue an instruction to convert a data format of data held by the execution server 20 to the specified data format.

Abstract: A communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT) are provided. The communication method and system may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A method and apparatus for determining a reception area of a packet in a V2X system are provided. In described aspects, a reception terminal may receive location information of a transmitting terminal and range information of transmitted data, and may determine whether to provide feedback regarding the transmitted data based on the location information and the range information.

Abstract: A firmware protection module implements a hybrid firmware protection scheme on a computing device. The firmware protection module intercepts a message from a processor to a memory of the computing device. The message includes a command and an address in the memory corresponding to a firmware module stored in the module. The firmware protection module determines whether the command in the message is prohibited and whether the address in the message is protected. Responsive to a determination that the command is prohibited and the address is protected, the firmware protection module prevents at least a portion of the message from reaching the memory.

Abstract: Methods and devices for operating a feedback radio node in a radio access network. The feedback radio node is configured with a feedback configuration, the feedback configuration configuring the feedback radio node to provide acknowledgement feedback pertaining to a subject transmission scheduled for reception by the feedback radio node. The feedback configuration configures, for the acknowledgement feedback, a plurality of data substructures associated to the subject transmission such that the acknowledgement feedback comprises at least one bit of acknowledgment information for each of the data substructures. The feedback radio node is configured with a transmission configuration, the transmission configuration configuring transmission resources for transmission by the feedback radio node.

Abstract: Disclosed is a 5th generation (5G) or a pre-5G communication system for supporting a data transmission rate higher than that of a 4th generation (4G) communication system such as long term evolution (LTE). An apparatus and a method for performing retransmission in a wireless communication system are provided. A method for operating a transmitting device in a wireless communication system, according to various embodiments of the present disclosure, comprises the steps of: transmitting a plurality of data code blocks (CBs) to at least one receiving device in an initial transmission step; receiving, from the at least one receiving device, feedback information including information for indicating the number of data CBs, from among the plurality of data CBs, for which decoding has failed; and transmitting the number of parity CBs, determined on the basis of the number of data CBs for which the decoding has failed, to the at least one receiving device in a retransmission step.

Abstract: An apparatus of user equipment (UE) includes processing circuitry coupled to a memory, where to configure the UE for HARQ-ACK transmission in an NR network, the processing circuitry is to decode DCI received via a PDSCH. The DCI includes resource assignments, a set index, and a reset indicator for a set of PDSCHs. Downlink data associated with the set index and received via the set of PDSCHs using the resource assignments is decoded. A PUCCH is encoded for transmission to a base station to include a HARQ-ACK of the decoded downlink data associated with the set index. The PUCCH is encoded to further include a second HARQ-ACK for a prior PDSCH reception, when the prior PDSCH reception includes PDSCHs associated with the set index and the reset indicator matches a reset indicator of the prior PDSCH reception.

Abstract: A system and methods for grouping and executing transactions concurrently while ensuring hybrid cloud cache integrity and consistency. The system identifies upload operations in a journal and associates each such operation with an upload transaction. The upload operations may be grouped into a group of concurrently executed upload operations. If an upload transaction finishes uploading a file and there is a most recent older upload transaction having a pending upload, then the system adds the completed transaction and a dependency queue associated with that transaction to a dependency queue of the most recent older upload transaction. If the current upload transaction finishes the upload operation and the transaction has an oldest transaction identifier of the group, then the system adds a PUSHDONE record for that transaction to a hybrid cloud cache journal along with a PUSHDONE record for the other transactions depending on that completed transaction.

Abstract: An ordered set of root cause analysis (RCA) document entry criteria is identified. RCA input segments are specified using unstructured natural language input, including at least: incident descriptive elements, a single problem statement, a set of why questions and answers, and a single cause categorization. A guided input sequence of the RCA input segments is performed interactively with a user. Quality indicators of content of user input entered during a respective RCA input segment are determined using a scoring algorithm, and the user is assisted with improving precision and consistency of the user input. Responsive to a threshold of consistent user input across the RCA input segments resulting in identification of a single cause categorization of an information technology (IT) problem, an RCA document is generated that identifies the single cause categorization of the new IT problem.

Abstract: A data sending method, a sending device, a data receiving method, and a receiving device, the method including obtaining, by a sending device, a target medium access control protocol data unit (MPDU) by performing encapsulation processing on an internet protocol (IP) data packet of a specified service, where the sending device and a receiving device are connected through Wi-Fi, generating a backup MPDU of the target MPDU, and sending the target MPDU and the backup MPDU to the receiving device.

Abstract: A user equipment (UE), a base station, and a method for managing hybrid automatic repeat request (HARQ) feedback for downlink synchronization. The UE includes at least one transceiver configured to receive downlink control information (DCI) in a physical downlink control channel (PDCCH), and at least one processor operably connected to the at least one transceiver. The at least one processor is configured to determine, based on a first field in the DCI, whether a hybrid automatic repeat request (HARQ) feedback is disabled, and determine, if the HARQ feedback is disabled, a second field in the DCI to be one of a reserved field or a zero bitwidth field based on a format of the DCI.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify a plurality of semi-persistent scheduling (SPS) configurations corresponding to a plurality of SPS occasions for reception of a physical downlink shared channel (PDSCH) in a slot; decode a first SPS occasion, of the plurality of SPS occasions, to attempt to receive the PDSCH in the slot; and selectively decode a second SPS occasion, of the plurality of SPS occasions, to attempt to receive the PDSCH in the slot. Numerous other aspects are provided.

Abstract: A process collects information about multiple systems of a computing environment from environmental tools web sources. The process builds and trains a classification model that extracts relevant information that classifies technical issues of the computing environment. The process performs root cause and predictive analyses, and identifies root causes of experienced technical issues and predicted technical issues. Based on identifying the root causes of the experienced technical issues, or identifying predicted issues, the process provides suggested corrective actions or optimization actions. Effectiveness of the suggested corrective actions and suggested optimization actions is tracked, and results of the tracking are fed into a training process that further trains the classification model.

Abstract: A method and apparatus for discarding data among associated transmission buffers in a wireless communication system is provided. A wireless device generates a first data packet and a second data packet, and performs a random access (RA) procedure based on the first data packet. When the RA procedure based on the first data packet fails, the wireless device discards the first data packet, and continues the RA procedure based on the second data packet. A media access control (MAC) layer indicates a radio resource control (RRC) layer that the RA procedure based on the second data packet is performed.

Abstract: An example device for retrieving media data includes a memory configured to store media data; and one or more processors implemented in circuitry and configured to: determine that a manifest file for a presentation of the media data includes data specifying a period of time of the presentation for which media data is not available but for which a segment timeline can be extended; retrieve a first set of segments of the presentation including media data having presentation times prior to the period of time; retrieve a second set of segments of the presentation including media data having presentation times after the period of time; in response to the determination that the manifest file includes the data specifying the period of time: omit retrieval of media data having presentation times during the period of time; and extend the segment timeline according to the determination.

Abstract: A system and method for monitoring processors operating in lockstep to detect mismatches in pending pipelined instructions being executed by the processors. A lockstep monitor implemented in hardware is provided to detect the mismatches in the pending pipelined instructions executing on the lockstep processors and to initiate an auto-recovery operation at the processors if a mismatch is detected.

Abstract: In one example, a device includes one or more processors configured to determine that data for at least a portion of a segment of media data has been lost after a remaining portion of the segment has been received via a network transmission in accordance with dynamic adaptive streaming over HTTP (DASH), based on the determination, prior to decoding the media data, add default data to the segment to replace the data that has been determined to be lost to form a replacement segment, and output media data of the replacement segment.

Abstract: A method and apparatus for retransmission processing in a communication receiver includes improving the performance of Incremental Redundancy (IR) combining and retransmission processing at minimal increased complexity. One aspect of these improvements involves the use of prior decoding results, if the decoding block quality is above a threshold value, rather than or in addition to prior demodulation results, in retransmission processing. That is, the teachings herein propose selectively using the hard bit decisions obtained from decoding previously transmitted data blocks, to improve the decoding of retransmitted data blocks.

Abstract: Disclosed are various embodiments that provide turbo decoding implemented as at least a portion of baseband processing circuitry. An input bit stream may be divided into a set of code blocks and a first code block may be separated from the set of code blocks. A hybrid automatic repeat request (HARQ) process is performed on the first code block to generate a processed first code block. The processed first code block is stored in an incremental redundancy (IR) buffer. A turbo decoding process is performed on the processed first code block to generate decoded first code block data and the decoded first code block data is stored in an external memory. The processed first code block is removed from the IR buffer for decoding a remaining portion of the set of code blocks.

Abstract: Hybrid Automatic Repeat Request (HARQ) is implemented using multi-bit feedback and variable retransmission energy. The multi-bit feedback provides information to the transmitter about the state of the decoder so that the transmitter can adapt retransmissions to the current state of the decoder. In some embodiments, the multi-bit feedback indicates a level of convergence reached by the decoder, and the transmitter varies an amount of energy used for the retransmission as a function of the multi-bit feedback. The transmitter can vary the amount of energy applied to the retransmission by varying the number of bits in the retransmission, or by varying a transmit power used for the retransmission.

Abstract: Disclosed are a DLP security system and an operating method thereof. An operating method of a data loss prevention (DLP) apparatus, comprising: converting, into packets, Ethernet signals received from a fail over device that are transmitted and received between an external network and internal network; analyzing the packets to classify the packets into first packets required to be precisely judged and second packets not required to be precisely judged; distributing and allocating a judgment job about the first packet to at least one in-line instance according to a predetermined reference; and allocating the judgment job distributed to the in-line instance in which a fail occurs to the in-line instance which is normally operated when it is verified whether there is an in-line instance which is normally operated in the case where the fail occurs in the at least one in-line instance.

Abstract: A method for transmitting a data block in a wireless communication system and a transmitter are provided. The transmitter transmits the data block to a receiver and generates a retransmission block for the retransmission of the data block if it is determined that the transmission fails. The transmitter determines whether the channel access is performed according to a transmit time of the retransmission block.

Abstract: A method and user equipment for simultaneous transmission of a first set of information bits and a second set of information bits by a user equipment, either separately encoded utilizing transmit power or rate matching to increase successful decoding of a set of information bits, or jointly encoding using a priori knowledge or bit positioning to increase successful decoding. Also, the use of joint coding where a first set of information bits is encoded first and then encoded with a second set of information bits, and modulation symbol mapping are provided.

Abstract: Maintaining bandwidth in links betweens servers and storage arrays comprising a device. The device establishes the links. The device identifies a first link from the links. The first link has a high response time. The device transmits a plurality of data packets on the first link. Each data packet is associated with a corresponding acknowledgment (ACK). The transmission is performed without waiting for the corresponding ACK to be received. The device tracks the ACK received in response to each of the transmitted data packets. The device detects a failure of the first link. In response to the detection, the device identifies invalid data packets. The invalid data packets comprise data packets transmitted on the first link after the detected failure.

Abstract: An information processing system including a transmitting apparatus that sends packet data through a plurality of routes and a receiving apparatus that receives the packet data sent through the plurality of routes, is disclosed. The transmitting apparatus includes a common section that, in response to a request to retransmit the divided piece of the data from the receiving apparatus, makes transmitters retransmit data stored in a transmission buffer, together with information indicating retransmission. The receiving apparatus includes a resend requester that, in response to detecting an error in data received by one of the plurality of receivers, requests the transmitting apparatus to retransmit data that have not been received successfully.

Abstract: Disclosed is a method to enable wireless remote session recovery for a wireless device. Should a wireless device encounter a broken communication link during a virtual mobile management (VMM) operation, a method of automatic session recovery is disclosed which executes from a management console through a communication end-point gateway server in order to reconnect the mobile device. Under control of the session reconnection method, the device client listener and tools of wireless device re-establishes the signal and bearer links with a management console, over the air through the communication end-point gateway server (CEG). The communication utilizing the session recovery algorithm enables the wireless device to receive session information from the communication end-point gateway server, including the respective tools.

Abstract: It is described a method for determining a received data block by employing a Hybrid Automatic Repeat Request procedure. The described method comprises calculating (104) first soft-information values being associated with a first reception of the data block, storing the calculated first soft-information values in a first buffer (121), and calculating (104) second soft-information values being associated with a second reception of the data block, wherein the second reception results from a retransmission of the data block following the first reception. The described method further comprises rate matching (128) a first soft data block comprising the calculated and stored first soft-information values, rate matching (118) a second soft data block comprising the calculated second soft-information values, and decoding (152) a combination of the rate matched first soft data block and the rate matched second soft data block.

Abstract: In a wireless communication system (200), a compact control signaling scheme is provided for signaling the selected retransmission mode and codeword identifier for a codeword retransmission when one of a plurality of codewords (CW1, CW2) being transmitted over two codeword pipes to a receiver (201.i) fails the transmission and when the base station/transmitter (210) switches from a higher order channel rank (231) to a lower order channel rank (241), either by including one or more additional signaling bits in the control signal (240) to identify the retransmitted codeword, or by re-using existing control signal information in a way that can be recognized by the subscriber station/receiver to identify the retransmitted codeword. With the compact control signal, the receiver (201.i) is able to determine which codeword is being retransmitted and to determine the corresponding time-frequency resource allocation for the retransmitted codeword.

Abstract: A retransmission side apparatus including a physical control channel receiver unit to receive a physical control channel which includes a new data indicator updated upon transmission of a new packet and a retransmission sequence number indicating whether transmission is first transmission or retransmission. The physical data channel receiver unit is configured to receive a physical data channel associated with the physical control channel. A transmission acknowledgment information transmitter unit transmits transmission acknowledgment information on a packet received through the physical data channel, on the basis of the new data indicator and the retransmission sequence number received through the physical control channel.

Abstract: The present invention relates to a method for retransmission of lost data, a receiving device operating according to the invented method and a retransmission server. In the absence of a unique identifier per data packet or data frame, there is obviously a problem to directly identify a specific data packet, data block or data frame in the stream and retransmission can't take place with current technologies. The object of the present invention is to offer a retransmission method and means for making said retransmission of missing data packets possible in the absence of a unique identifier.

Abstract: A radio device includes a radio section which transmits a digital signal through a digital communication path, and a baseband processing section which performs a baseband processing on the digital signal received from the radio section, wherein the baseband processing section performs error detection of the digital signal before performing the baseband processing, and wherein, when an error is detected in the digital signal, the baseband processing section performs the baseband processing without waiting for reception of a retransmitted signal from the radio section.

Abstract: Data that is collected and disseminated by mobile devices typically has to be processed, correlated with other data, aggregated, and then transmitted back to the mobile device users before the information becomes stale or otherwise irrelevant. These operations may be performed in a cloud-based solution that manages dataflow. The cloud-based solutions may be scalable and implemented in a fault-tolerant distributed system to support user-facing continuous sensing and processing services in the cloud-computing system. A system may monitor execution of data and shift workloads (i.e., balancing) in response to spatial and temporal load imbalances that occur in a continuous computing environment. A failure recovery protocol may be implemented that uses a checkpoint-based partial rollback recovery mechanism with selective re-execution, which may allow recovery of the continuous processing after an error while avoiding large amounts of downtime and re-execution.

Abstract: A method of delivering digital information includes joining a multicast group, and receiving a segment from a server directed to the multicast group. Further, the method further includes determining a transmission error has occurred resulting in an incomplete segment, and sending an error notification to the server requesting retransmission of at least a portion of the incomplete segment. Additionally, the method includes receiving a retransmission of the at least a portion of the incomplete segment. The at least a portion of the incomplete segment may be received through an IP unicast connection or as a multicast retransmission.

Abstract: A memory controller and method of operating same are described. The memory controller includes a central processing unit providing re-transmission control signal, an error check block determining whether an error exists in data received from a host and generating a corresponding error check signal, and a re-transmission request unit receiving the control signal and the error check signal, communicating a request to the host for an error-correcting re-transmission operation when an error exists in the received data, and communicating a request for an extending re-transmission operation when error does not exist in the received data.

Abstract: This disclosure relates to network data communication. Some embodiments include initiating a network connection between an original source and an ultimate destination, transmitting a block of data from the original source to the ultimate destination on the network, requesting retransmission of lost blocks from the ultimate destination to the source and retransmitting the lost blocks from source to the ultimate destination. These embodiments further include measuring round-trip time of a retransmit request, the round-trip time measured from a time of transmission of a retransmit request from the ultimate destination to a time of reception at the ultimate destination after retransmission from the original source and setting the round-trip time as a minimum retransmission request time for the network connection, wherein the round-trip time includes latencies of the network connection and in data processes at the original source and at the ultimate destination.

Abstract: A communication method in a receiving node in a wireless communication system includes receiving, at a receiving node, a first coded message block that includes a plurality of parts distributed over a plurality of components. The method further includes detecting a decoding error associated with decoding the received first coded message block and, in response to detecting the decoding error, identifying a part of the first coded message block for which retransmission will be requested and a suggested retransmission setting. The suggested retransmission setting includes one or more of a component selection setting, a link adaptation setting, a power control setting, and a scheduling setting. The method also includes feeding back to the sending node feedback information indicating that the first coded message block could not be correctly decoded. The feedback information indicates the identified part of the first coded message block and the suggested retransmission settings.

Abstract: A method of telecommunication transmits blocks of data between a user equipment and a station using parallel hybrid automatic repeat request processes. The station includes a scheduler that signals to the user equipment allocations of resources and parameters for transmission and re-transmission of the data blocks and a set of reception buffers that receive and re-order the data blocks from the user equipment. The scheduler assigns a reception index to the corresponding scheduled reception and assigning reception buffers to received data blocks as a function of the respective originally scheduled reception indexes identifying time slots scheduled for reception. A data block newly transmitted by the user equipment and received in its scheduled time slot is assigned to the reception buffer corresponding to the new reception index.

Abstract: According to one embodiment, a reception processing device receives and stores a data packet and a quality enhancement packet. The device includes a third storage unit that stores association between the quality enhancement packet stored in a second storage unit and the data packet stored in a first storage unit, and a fourth storage unit that stores, at each quality enhancement processing, a processing state representing at least one of an interim result and a final result in the quality enhancement processing. The device performs the quality enhancement processing using redundant data included in the quality enhancement packet and the data packet identified by the association and associated with the quality enhancement packet, stores, in the fourth storage unit, the processing state representing the interim result of the operation when interrupting the quality enhancement processing, and resumes the quality enhancement processing by using the processing state.