Abstract: A method of programming a tire pressure monitor sensor utilizes a programming tool that transmits LF data frames to the TPMS sensor that includes a cyclic redundancy check (CRC) code with each data frame. The starting point for the subsequent data frame will then start with the CRC code received from the previous frame and will end with a new CRC code. Accordingly, the CRC code received from the previous frame will be used to ensure that the next data frame matches that CRC code as the starting point for that frame. This will ensure that the data frames cannot get out of sequence and will allow the ability to quickly identify where the data frames have gone out of sync and allow the programming tool to quickly react.

Abstract: Wireless communications devices are adapted to perform retransmissions of data blocks. A wireless communications device can be adapted to transmit a plurality of data blocks to a receiving device. When the plurality of data blocks are transmitted, the wireless communications device can initiate a block timer associated with a round trip time for communications between the wireless communications device and the receiving device. When, prior to expiration of the block timer, a transmission is received with an indication that at least one data block was not successfully received, the wireless communications device can retransmit the unsuccessful data block. On retransmission, the block timer is restarted. If another transmission is received prior to expiration of the restarted block timer, the wireless communications device can ignore any indication of unsuccessful receipt associated with the retransmitted data block. Other aspects, embodiments, and features are also claimed and described.

Abstract: A system for adaptive audio video (AV) stream processing may include at least one processor and a switch device. The switch device may be configured to route AV traffic to the processor, and to receive AV traffic from the processor and provide the AV traffic to a client device via one or more channels. The processor may monitor a transcoder buffer depth and depths of buffers associated with channels over which the AV traffic is being transmitted. The processor may adaptively modify one or more attributes associated with the AV traffic based at least on the monitored buffer depths. For example, the processor may adaptively adjust a bit rate associated with transcoding the AV traffic based at least on the transcoder buffer depth. The processor may utilize the depths of the buffers associated with the channels to adaptively adjust the amount of AV traffic provided for transmission over the channels.

Abstract: A system and method for smart relay operation in a wireless communications system is provided. A method for smart relay operations includes receiving, at a smart relay, a transmission from a communications device, the transmission destined for a controller, decoding the transmission, computing a response based on the decoding, and transmitting the response to the controller.

Abstract: A medium access control-high speed (MAC-hs) comprises a hybrid automatic repeat request (H-ARQ) device configured to receive data blocks over a wideband-code division multiple access (W-CDMA) high speed-downlink shared channel (HS-DSCH). The H-ARQ device generates an acknowledgement (ACK) or negative acknowledgement (NACK) for each said data block received. Each received data block having a transmission sequence number. The H-ARQ device receives a new transmission instead of a pending retransmission at any time. At least one reordering device has an input configured to receive an output of the H-ARQ device and the at least one reordering device configured to reorder the received data blocks based on each received data block's transmission sequence number (TSN). Received data blocks are immediately forwarded for processing for higher layers when the received data blocks are received in sequence.

Abstract: A computing device performance monitor may be configured to collect performance metric information regarding one or more monitored computing devices, and may assign condition point values to each metric. The performance monitor may generate a total of the condition point values, and use the total to determine an appropriate response.

Abstract: A method and apparatus for implementing data security and automatic repeat request (ARQ) in a wireless communication system are disclosed. Cipher entities are included in a wireless transmit/receive unit (WTRU) and an access gateway (aGW), and outer ARQ, (or radio link control (RLC)), entities are included in the WTRU and an evolved Node-B (eNode-B). Each cipher entity is located on top of an outer ARQ entity. The cipher entities cipher and decipher a data block by using a generic sequence number (SN) assigned to the data block. The outer ARQ entities may segment the ciphered data block to multiple packet data units (PDUs), may concatenate multiple ciphered data blocks to a PDU, or may generate one PDU from one data block. The outer ARQ entities may segment or re-segment the PDU when a transmission failure occurs.

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: Systems, methods and apparatus are described to interleave LDPC coded data for reception over a mobile communications channel, such as, for example, a satellite channel. In exemplary embodiments of the present invention, a method for channel interleaving includes segmenting a large LDPC code block into smaller codewords, randomly shuffling the code segments of each codeword and then convolutionally interleaving the randomly shuffled code words. In exemplary embodiments of the present invention, such random shuffling can guarantee that no two consecutive input code segments will be closer than a defined minimum number of code segments at the output of the shuffler. In exemplary embodiments of the present invention, by keeping data in, for example, manageable sub-sections, accurate SNR estimations, which are needed for the best possible LDPC decoding performance, can be facilitated based on, for example, iterative bit decisions.

Abstract: A transmitting unit divides a transmit data into a plurality of code blocks, and encodes each of the plurality of code blocks to generate a transmission signal. The transmitting unit transmits the transmission signal, and a receiving unit receives the transmission signal as a reception signal. The receiving unit, when being an error in the reception signal, transmits a retransmission request feedback data which contains a NACK data and a data indicating the first code block group to the transmitting unit. First resources are assigned for each of the plurality of code blocks of the transmission signal. The transmitting unit assigns resources of the first code block group of the plurality of code blocks of the transmission signal to second resources which are fewer than the first resources, based on the retransmission request feedback data, and retransmits the transmission signal to the receiving unit.

Abstract: Error correction decoding is performed on a codeword where the codeword is unable to be successfully decoded. One or more bits in the codeword are selected to be replaced with an erasure. The selected bits in the codeword is/are replaced with an erasure to obtain a codeword with one or more erasures. Error correction decoding is performed on the codeword with one or more erasures.

Abstract: The disclosed embodiments provide a system that transfers data from a storage device to a host. The system includes a communication mechanism that receives a request to read a set of blocks from the host. Next, upon reading each block from the set of blocks from the storage device, the communication mechanism transfers the block over an interface with the host. The system also includes an error-detection apparatus that performs error detection on the block upon reading the block, and an error-correction apparatus that performs error correction on the block if an error is detected in the block. The communication mechanism may then retransfer the block to the host after the error is removed from the block.

Abstract: A method and apparatus for controlling iterative decoding in a turbo decoder are provided, in which a maximum number of iterations is determined for current data to be decoded based on at least one of current HARQ information necessary for a HARQ operation of the current data, previous HARQ information about previous data, and early stop information indicating whether iterative decoding of the previous data was early stopped. A turbo decoder iteratively decodes the current data within the maximum number of iterations.

Abstract: A transceiver architecture can contain an encoder and a decoder for communicating high speed transmissions. The encoder can modulate signal data for being mapped in a constellation that is generated based on concatenations of a leech lattice having binary and non-binary codes. The data can be transmitted at a high speed according to the constellation with an embedded leech lattice configuration in order to generate a coding gain. A decoder operates to decode the received input signal data with a decreased latency or a minimal latency with a high spectral efficiency.

Abstract: A method and memory device is provided for reading data from an ECC word of a plurality of reference bits associated with a plurality of memory device bits and determining if a double bit error in the ECC word exists. The ECC word may be first toggled twice and the reference bits reset upon detecting the double bit error.

Abstract: A method is described for transmitting signals in a mobile communication system which splits an information block into a plurality of split-information blocks and performs a hybrid automatic repeat request (HARQ) process upon each of the split-information blocks. A method is also described for reducing control information overhead by transmitting control information only through one control channel when splitting an information block and transmitting split-information blocks through a plurality of subframes or a plurality of resource blocks. The segmentation of the information block is performed in a physical layer to reduce medium access control (MAC) overhead and to simplify implementation.

Abstract: A system and method for transmitting high speed data on fixed rate and for variable rate channels. The system and method provides the flexibility of adjusting the data rate, the coding rate, and the nature of individual retransmissions. Further, the system and method supports partial soft combining of retransmitted data with previously transmitted data, supports parity bit selection for successive retransmissions, and supports various combinations of data rate variations, coding rate variations, and partial data transmissions.

Abstract: Methods and systems for extracting speech from such packet streams. The methods and systems analyze the encoded speech in a given packet stream, and automatically identify the actual speech coding scheme that was used to produce it. These techniques may be used, for example, in interception systems where the identity of the actual speech coding scheme is sometimes unavailable or inaccessible. For instance, the identity of the actual speech coding scheme may be sent in a separate signaling stream that is not intercepted. As another example, the identity of the actual speech coding scheme may be sent in the same packet stream as the encoded speech, but in encrypted form.

Abstract: Methods and apparatus relating to retry based protocol with source/receiver FIFO (First-In, First-Out) buffer recovery and anti-starvation mechanism to support dynamic pipeline lengthening for ECC error correction are described. In an embodiment, upon detection of an error, a portion of transmitted data is stored in one or more storage devices before retransmission. Other embodiments are also described and claimed.

Abstract: A decoding method for decoding information content in at least one data packet, which is transmitted from a sender to a receiver via a data link. The information is represented by a bit sequence, which is transformed into a transmittable redundancy version. The information is initially transmitted for a first time in a first data packet from the sender to the receiver. The information is represented by a first redundancy version, which is self-decodable. An incorrect receipt is confirmed by sending a confirmation from the receiver to the sender. The information is retransmitted at least a second time in a second data packet from the sender to the receiver upon receipt of the confirmation, wherein, for representation of the information, a second redundancy version is used, the selection of which is performed in dependence on a coding parameter, describing whether the redundancy version is self-decodable or not.

Abstract: A user terminal for receiving a plurality of data pieces for a plurality of processes that are simultaneously operated. Each of the data pieces has an indicator indicating whether the data piece is new data and is transmitted from a network apparatus that changes an indicator value on a process-by-process basis. The user terminal includes a data receiving unit for receiving the data piece having the indicator, a response transmitting unit for transmitting a response indicating an acknowledgement or a negative acknowledgement for the received data piece, and an indicator determination unit for determining whether the indicator of the received data piece is the same as the indicator of a previous data piece received immediately previously for the same process as the process of the received data piece and whether the response for the previous data piece indicates the acknowledgement to discard the received data piece.

Abstract: A method for encoding data words into a frame is provided. Input data words are received on a first bus having a first width. The input data words are buffered so as to output intermediate data words onto a second bus having a second width. A transcode bit is generated from the intermediate data words, and a set of parity bits is generated from the intermediate words using a syndrome generator, where the syndrome generator uses a number of bits that are equal to the second width. A frame is then generated from the intermediate data words and the set of parity bits and is output to a third bus having the first width.

Abstract: A combination of repeaters and relays is used to improve the data throughput for user equipment (“UE”) near the cell edge in a LTE network. Amplify-and-forward repeaters and decode-and-forward relays enhance the down-link and up-link, respectively. Relay assistance on the up-link occurs when the evolved Node B (“eNB”) requests a retransmission (HARQ) from the UE at which point the UE and relay transmit simultaneously in a cooperative fashion. The quality of the up-link signal received by the eNB is improved due to a favorable channel through the relay. An analysis shows that relay assistance improves the throughput for a cell-edge user when the average delay per data transport block is allowed to increase.

Abstract: The illustrative embodiments described herein provide a computer implemented method, apparatus, and computer program product for managing a batch production system. In an illustrative embodiment, an application forecast is generated for a set of batch jobs in a critical path of a batch application. The application forecast comprises a sum of execution times for the batch jobs in the critical path. In response to detecting an abend from production data generated during the execution of the batch application, the abend is mapped against known abends in an abend database to identify a set of abend solutions. Thereafter, a notification is generated which comprises at least one of a status of the batch application and the set of abend solutions, wherein the status is generated based on the application forecast.

Abstract: An error check apparatus including, a packet protocol error check processing circuit configure to detect a protocol error of a packet, a retry control circuit configured to receive the protocol error of the packet from the packet protocol error check processing circuit, and to perform request for retry for data of the packet if the received protocol error has not been detected from a packet retransmitted by retry request, and an error notification circuit configured to notify of the protocol error of the packet to a processing unit in a higher-level layer if the protocol error is not a first protocol error for the packet.

Abstract: One embodiment relates to a method of processing data in a transmitter. In the method, a timestamp is generated for a data unit. The data unit is stored in a memory unit in the transmitter. The data unit is transmitted from the transmitter to a receiver. The transmitter waits up to a predetermined time measured with respect to the timestamp to receive an acknowledgement from the receiver. Based on whether the acknowledgement is received within the predetermined time, the transmitter selectively retransmits the data unit to the receiver. Other methods and systems are also disclosed.

Abstract: A transmitting/receiving system includes a first transmitting/receiving apparatus which includes a first transmitting unit and a first receiving unit, and a second transmitting/receiving apparatus which includes a second receiving unit, a detector, a second generator, and a second transmitting unit. The first transmitting unit transmits data with an error detecting code after a bit-number conversion. The first receiving unit receives a response to the data after a bit-number inverse conversion. The second receiving unit subjects the data to a bit-number inverse conversion. The detector detects an error from the error detecting code. The second generator generates a positive or negative acknowledgement depending on the error detection and uses a code which enables distinguishing between positive and negative acknowledgements when a 1-bit error occurs during transportation. The second transmitting unit transmits the acknowledgement after a bit-number conversion to the first transmitting/receiving apparatus.

Abstract: A file is multicast from an error-correcting multicast apparatus to a plurality of endpoints forming a first multicast group, over a network segmented into at least second and third multicast groups. The second and third multicast groups are subsets of the first multicast group. Given ones of the endpoints are assigned to the second and third multicast groups based on likelihood of experiencing similar errors. At the error-correcting multicast apparatus, over the network, a retransmission request is obtained from a first one of the endpoints, based on at least one of loss and corruption of a portion of the file during the multicasting of the file to the first one of the endpoints. The portion of the file is retransmitted, via multicasting, over the network, to one of the second and third multicast groups.

Abstract: A method for providing error-resilient video content may include receiving video data reflective of multiple video frames and encoding the video data to generate a plurality of packets. The method may also include transmitting the first group of packets to at least two receivers and receiving feedback information regarding receiving status of respective ones of the plurality of packets, the feedback information being indicative of packets not received correctly. The method may further include examining error indications based on the feedback information and implementing a first error-correction policy if a variation in the error indications among the at least two receivers is below a first error threshold and a second error-correction policy if the variation is above the first error threshold. At least one of the first and second error-correction policies may include transmitting or retransmitting at least one packet using a different coding scheme.

Abstract: Methods and systems for enhancing the detectability of maritime e-Navigation messages are provided. Transmitters apply error protection encoding to the payload portion of messages to be transmitted, which are wrapped in a standard e-Navigation message format such as that used by the Automatic Identification System. Transmitted messages are received by a satellite or other surveillance platform employing a compatible radio frequency receiver to collect message signals over a large area or great distance. Candidate messages are identified and the error protection encoding decoded to recover messages.

Abstract: A method for implementing adaptive error correction in a memory, comprising the steps of (A) decoding a page of data read from a memory, (B) selecting one of a plurality of histograms based on a measured code word error rate of the decoded page and (C) applying an error correction code rate based on the selected histogram. The error correction code rate allows the memory to use a minimum number of error correction bits to provide reliable operation of the memory.

Abstract: A data storage device may comprise an array of flash memory devices and a controller coupled thereto, configured to program and read data from the array responsive to received data access commands. The array may comprise a plurality of blocks, each comprising a plurality of flash pages (F-Pages), each of which comprising an integer number of one or more error correcting code pages (E-Pages), at least some of which comprising a data portion and an error correction code (ECC) portion. The controller may be configured to store a plurality of logical pages (L-Pages) in one or more of the plurality of E-Pages, at least some being unaligned with boundaries of the E-Pages; and to adjust, in at least one of the blocks, the size of the ECC portion and correspondingly adjust the size of the data portion of the E-Pages.

Abstract: Techniques for controlling synchronous HARQ retransmissions are disclosed, in which non-adaptive retransmissions scheduled for a first transmission time interval are automatically deferred to a later transmission time interval in the event that a control message prohibiting the retransmission during the first transmission interval is received. In an exemplary method, a NACK message is received in response to a previous data transmission corresponding to a stop-and-wait HARQ process, and a synchronous HARQ retransmission is scheduled for a first transmission interval in response. A control message indicating that data for the stop-and-wait HARQ process may not be sent during the first transmission interval is received, and the synchronous HARQ retransmission is automatically deferred to a second transmission interval, responsive to the control message. An explicit grant is not required to trigger the retransmission during the second transmission interval.

Abstract: A loss correction encoding device having an improved capability of loss correction using LDPC-CC includes a rearranging unit that rearranges information data contained in n information packets according to the constraint length Kmax and the encoding rate (q?1)/q of a check polynomial of the loss correction code used in a loss correction encoding unit. Specifically, the rearranging unit rearranges the information data in such a way that continuous Kmax×(q?1) pieces of information data after rearrangement are contained in different information packets. The rearranging unit distributes the information data to information blocks from n information packets, where n satisfies the formula Kmax×(q?1)?n.

Abstract: In the hybrid automatic repeat request (H-ARQ) supporting method for cooperative transmission, a receiver selects one H-ARQ repeat method from among the chase combining method and the incremental redundancy method according to the SNR when the data packet cooperatively transmitted by transmitters generates an error. Also, the method for the receiver to select a repeat transmitter includes a method for selecting a repeat transmitter in advance, a method for removing a transmitting node from a repeat transmitter group when the SNR of the transmitting node is low, and a method for estimating the SNR of each transmitter for each predetermined time frame and selecting the transmitter having the greatest SNR as the repeat transmitter.

Abstract: A mechanism is provided for transmitting a multicast session to a plurality of receivers over a wireless network. A forward error correction (FEC) overhead and a transmission rate are determined for transmission of a next data block of the multicast session based on received channel conditions. The next data block is multicast using the determined FEC overhead and transmission rate. Responsive to an indication of common missing packets from the next data block from more than one receiver in the plurality of receivers, the common missing packets are multicast to the plurality of receivers using the determined FEC overhead and transmission rate. Responsive to an indication of uncommon missing packets from the data block from one or more receivers, for each receiver in the one or more receivers, the uncommon missing packets identified by the receiver are unicast using the determined FEC overhead and transmission rate.

Abstract: System for early detection of decoding errors. A method is provided for detecting a decode failure. The method includes receiving an initial amount of code packets, detecting a trigger event that indicates a decode failure associated with the initial amount of code packets, and receiving one or more additional code packets.

Abstract: A method for error correction deciphering of a receive apparatus in a mobile communication system includes receiving a Packet Data Convergence Protocol (PDCP) packet. The method also includes, when error correction ciphering is set, acquiring a partial Hyper Frame Number (HFN) from the PDCP packet. The method further includes comparing the partial HFN and the receive apparatus's own lower HFN of a constant bit count. The method still further includes, if the partial HFN and the receive apparatus's own lower HFN of the constant bit count are different from each other, performing an HFN correction function.

Abstract: A system is configured to receive a block of symbols, associated with a phase-modulated signal that includes data symbols that correspond to a payload associated with the signal, and control symbols; process the control symbols to identify an amount of phase noise associated with the control symbols; reset a phase, associated with each of the data symbols, based on the amount of phase noise and a reference phase; interleave the respective data samples, of each of the data symbols with other data samples, where the interleaved respective data samples cause errors, associated with the respective data samples, to be spread out among the other data samples and reduces an error rate relative to a prior data rate that existed before the interleaving; and perform forward error correction on the interleaved respective data samples.

Abstract: A decoding method for decoding information content in at least one data packet, which is transmitted from a sender to a receiver via a data link. The information is represented by a bit sequence, which is transformed into a transmittable redundancy version. The information is initially transmitted for a first time in a first data packet from the sender to the receiver. The information is represented by a first redundancy version, which is self-decodable. An incorrect receipt is confirmed by sending a confirmation from the receiver to the sender. The information is retransmitted at least a second time in a second data packet from the sender to the receiver upon receipt of the confirmation, wherein, for representation of the information, a second redundancy version is used, the selection of which is performed in dependence on a coding parameter, describing whether the redundancy version is self-decodable or not.

Abstract: A transmitting/receiving system and a data processing method of the same are disclosed herein. The receiving system may include a receiving unit, a first processing unit, and a second processing unit. The receiving unit receives a broadcast signal including mobile service data and an FIC segment from at least one slot. Herein, a transmission frame may be configured of a plurality of sub-frames for receiving at least one ensemble and at least one mobile service, and a sub-frame may be configured of a plurality of slots. The a first processing unit extracts FIC segments each having a different FIC chunk major protocol version from the broadcast signal, and acquires a number of the corresponding FIC segment, a number of the last FIC segment, and FIC chunk major protocol version information from each segment header of the extracted FIC segments.

Abstract: A method, computer readable medium, and system for implementing adaptive forward error correction in a network includes converting at a first computing device a number K of original data packets into a number N of error correction packets for forward error correction for a transmission to a second computing device. A subset number S1 of the number N of the error correction packets which is less than the number N of error correction packets is determined at the first computing device based on a loss rate for the transmission to the second computing device. The determined subset number S1 of the number N of the error correction packets is transmitted from the first computing device to the second computing device.

Abstract: A system and method for transmitting and receiving acknowledgement information are provided. A method for communications device operations includes determining a hybrid automatic repeat request (HARQ) response for each component carrier (CC) in a set of CCs configured by higher layer signaling, thereby producing a set of HARQ responses; generating an information vector from the set of HARQ responses, encoding the information vector; and transmitting the encoded information vector. The information vector comprises one or more bits respectively corresponding to a CC in the set of CCs. A bit is assigned a fixed value if HARQ response of a corresponding CC is set to DTX in response to no transmission detected over the CC.

Abstract: A data reading method is provided. The data reading method includes: utilizing a first sense voltage to read a data unit from a flash memory block; performing an error detection operation on the data unit and calculating an error polynomial according to a detection result; and determining whether the error polynomial conforms to a predetermined condition and deciding whether to perform read retry on the data unit according to a determining result.

Abstract: A transmitting/receiving system and a data processing method of the same are disclosed herein. The receiving system may include a receiving unit, a first processing unit, and a second processing unit. The receiving unit receives a broadcast signal including mobile service data from at least one slot. The first processing unit acquires FIC segments divided from an FIC chunk of at least one sub-frame. Herein, each FIC segment comprises a 2-byte segment header and a 35-byte segment payload. The segment header includes an FIC type information, a number of a corresponding FIC segment, and a number of a last FIC segment among the FIC segments divided from the FIC chunk. The second processing unit obtains the FIC chunk including signaling information between at least one ensemble and at least one mobile service from respective payloads of the FIC segments, based upon the acquired FIC type information, number of the corresponding FIC segment, and number of the last FIC segment of each FIC segment.

Abstract: The invention proposes a method for the transmission of data in a cooperative network comprising a source terminal (S), a destination terminal (D) and a relay terminal (R), comprising: in a first transmission (T1), the transmission of the data of a packet by the source terminal (S) to both the relay terminal (R) and the destination terminal (D); in the event of failure (N1) of the destination terminal (D) to successfully decode the data in the packet of the first transmission, and in the case of the data of the first transmission being successfully (O2) decoded by the relay terminal (R), the relay terminal transmits the data of the packet to the destination terminal in a second transmission (T2); in the event of failure (N3) of the destination terminal to successfully decode the data in the packet of the second transmission (T2), selection of the source terminal and/or relay terminal to retransmit the data of the packet to the destination terminal in a third transmission (T3), where the selection may be ba

Abstract: A data processing device including a controller configured to control the data processing device to execute steps of: receiving a data packet comprising a group identification information that identifies a restoration group, with which the data packet is associated, and redundant data for restoring a lost data packet, which is associated with the restoration group identified by the group identification information; determining whether a received amount of data packet associated with the restoration group identified by the group identification information is equal to or greater than a predetermined value; and restoring the lost data packet associated with the restoration group identified by the group identification information when the received amount of data packet associated with the restoration group identified by the group identification information is equal to or greater than the predetermined value.

Abstract: A wireless communication terminal is disclose. The terminal includes a transceiver coupled to a processor configured to determine that a subset of a plurality of REs must be excluded from demodulation, the plurality of resource elements (REs) received in a signal from a first base station, to estimate a hypothetical block error rate (BLER) based on the signal received from the first base station by excluding the subset of the plurality of Res, and to estimate channel state information based on the hypothetical block error rate (BLER).

Abstract: Disclosed are mobile communication devices and methods of a mobile communication device that determines that no response has been received within a predetermined period of time from a network to a transmission of an encoded data block in accordance with a commanded MCS. The device then determines an alternative MCS capable of coping better with variations in the radio environment with minimal damage or alteration than the commanded MCS and preemptively transmits the encoded data block in accordance with this more robust alternative MCS. In this way the mobile communication device does not continue failed attempts to transmit data in accordance with the commanded MCS. After the device receives notice of successful transmission of the encoded data block with the alternative MCS, the device will resume the use of the commanded MCS to transmit subsequent encoded data blocks.

Abstract: A transmission process of control data is carried out simply and the reliability of transmission of the control data is improved. Data transmission among a plurality of communication stations is performed with a predetermined packet arrangement and transmission of the control data from a control station or a communication station is performed with the same predetermined packet arrangement.