Abstract: A method and an apparatus for transmitting uplink control information (UCI), performed by a user equipment, in a wireless communication system are provided. The method comprising: generating encoded information bits by performing channel coding on information bits of the UCI; generating a modulation symbol sequence by modulating the encoded information bits; generating a spread sequence by block-wise spreading on the modulation symbol sequences with an orthogonal sequence; and transmitting the spread sequence to a base station through an uplink control channel, wherein the information bits of the UCI comprises a first UCI bit sequence and a second UCI information bit.

Abstract: System (100) and methods (1100) for improving packet loss due to fast optical power fades in an FSO communication link (136). The methods involve: obtaining Channel Fade Statistics (“CFSs”) for the FSO communication link; and analyzing CFSs to determine if Redundant Packet Transmission (“RPT”) is required to mitigate fast optical power fading. If RPT is required, then first operations are performed at a data link layer (408) of a protocol stack (400) to generate first packets (600). Each packet has a sequence number (602) disposed between a data link layer header (502) and a network layer header (504). If RPT is not required, then second operations are performed at the data link layer to generate a second packet absent of the sequence number or alternatively having a sequence number equal to zero. Thereafter, the packet(s) is transmitted over the FSO communication link one or more times.

Abstract: A method includes the following steps: sorting service data into retransmissive service data and non-retransmissive service data; allocating resources to the retransmissive service data and the non-retransmissive service data respectively, and encapsulating the data into DTUs according to the allocated resources; sending, by a sender, the DTU that bears the service data; receiving, by the sender, a retransmission request that is sent according to a result of judging a bit error and a type of the retransmissive service, where the retransmission request carries information about the DTU that needs to be retransmitted; and retransmitting, by the sender, a corresponding DTU that bears the retransmissive service data requested for retransmission.

Abstract: The present invention discloses methods and systems for transmitting data packets from a first communications router to a second communications router through an aggregated connection comprising a plurality of tunnels. The first communications router receives a first data packet belonging to a data session from a first host. The first communications router then transmits the first data packet to the second communications router and stores the first data packet in a local storage medium. The first communications router determines whether an error correction mode is activated. If an error correction mode is activated, the first communications router retransmits the first data packet and also transmits an error correction packet corresponding to the first data packet.

Abstract: A control device includes an apparatus controller that is connected to at least one apparatus and includes a first memory which stores data for controlling the driving of the apparatus and data indicating a state of the apparatus and a reading and transmitting unit which reads each data item stored in the first memory and transmits the read data, a main controller that includes a central processing unit, a second memory, and a writing unit which writes the data transmitted from the apparatus controller to the second memory, and a full-duplex serial bus that connects the main controller and the apparatus controller. The reading and transmitting unit and the writing unit operate such that each data item stored in the first memory is read, transmitted, and stored in the second memory in a cycle equal to or less than a count cycle of a system timer.

Abstract: An automatic retransmission request control system in an OFDM-MIMO communication system includes a retransmission mode selection part which selects a retransmission mode from among (a) a mode in which to transmit the data which are to be retransmitted, via the same antenna as in the previous transmission, while transmitting, at the same time, new data by use of an antenna via which no data retransmission is requested; (b) a mode in which to transmit the data, which are to be retransmitted, via an antenna via which no retransmission is requested, while transmitting new data via another antenna at the same time; (c) a mode in which to use STBC to retransmit the data via an antenna via which no retransmission is requested; and (d) a mode in which to use STBC to retransmit the data via all the available antennas.

Abstract: The present invention to provide methods and related controllers that manage HARQ processes in a wireless communications system. The present invention provides a method and related controller to map data units (e.g. PDU) of importance that is to be transmitted to a HARQ process having a higher transmission success rate to prevent the data units from being transmitted via a HARQ process having more transmission failures. In addition, the present invention also provides a method and a related controller to force a HARQ process to retransmit a data unit that has been correctly received by a receiving end to reduce the latency of retransmission caused by a possible transmission failure occurring between a MAC layer and a RLC layer at the receiving end.

Abstract: A method of transmitting data over a communication network using negative acknowledgment is presented. In the method, a stream of data packets is transmitted from a first node of the network to a second node of the network. All but at least two of the stream of data packets is successfully received at the second node, wherein the data packets that are not successfully received are not located sequentially within the stream of data packets. A status packet is transmitted from the second node to the first node, wherein the status packet includes an indication of each of the data packets that were not successfully received. In response to receiving the status packet at the first node, the data packets that were not successfully received at the second node are retransmitted from the first node to the second node in response to receiving the status packet.

Abstract: Electronic apparatus, systems, and methods to construct and operate the electronic apparatus and/or systems include a memory unit configured to receive data flow from two directions. The memory unit can be configured serially in a chain with other memory units. The chain can include an error check and correcting unit (ECC). Additional apparatus, systems, and methods are disclosed.

Abstract: One or more flow control modules, implemented on various types of network topologies, provide a number of functionalities for controlling the flow of IP packets (such as TCP/IP packets) over a network connection. The flow control modules may be implemented within a sender and/or receiver or may be deployed into a network as a separate device without requiring significant additional resources.

Abstract: When transmitting retransmission data, MCS information of a control channel for when communicating the new data is replaced with retransmission control information and the control channel is transmitted. When receiving retransmission data, the control channel is received to obtain the retransmission control information, the replaced MCS information is estimated from the control channel received at the time of communication of new data, and a reception process of retransmission data is controlled using the estimated MCS information and the retransmission control information.

Abstract: A method and an apparatus for transmitting Hybrid Automatic Repeat reQuest (HARQ) Acknowledgement/Negative Acknowledgement (ACK/NACK) are provided. The HARQ ACK/NACK transmission method includes receiving a Physical Downlink Shared Channel (PDSCH) in a subframe of a first cell, identifying an ACK subframe for transmitting HARQ ACK/NACK corresponding to the PDSCH, and transmitting the HARQ ACK/NACK in the identified ACK subframe of a second cell.

Abstract: According to embodiments of the present invention, there is provided a method of providing, for a dual-antenna UE or quadri-antenna UE, downlink control information used for uplink transmission in a management device of LTE-A network, and the method for the former comprises the steps of: determining an uplink transmission scheme for the dual-antenna UE; semi-statically configuring, by high level signaling, the uplink transmission mode to which the uplink transmission scheme belongs; generating downlink control information corresponding to the determined uplink transmission scheme, the downlink control information comprising a first indicating field, a second indicating field, a new-data indicating field for a first transmission block and a new-data indicating field for a second transmission block; wherein, when transmission block is disabled for the determined up-link transmission scheme, disablement of at least one of two transmission blocks is represented by a first combination of the value of the first ind

Abstract: A method of selectively employing acknowledgment in a communication system is presented herein. In one implementation of the method, at least one indication of a communication quality of a link coupling a first communication node and a second communication node is processed. After processing the indication, a message from the first communication node is transmitted over the link to the second communication node. The message includes an acknowledgment request if the processing of the indication signifies that the communication quality of the link is below a predetermined level. Oppositely, the message does not include an acknowledgment request if the processing of the indication signifies that the communication quality of the link at least attains the predetermined level.

Abstract: A transmission device for rigorously protecting important information when information is transferred via a best-effort network. In this transmission device, a quality control information retention unit holds quality control information set by a user. A delay amount instruction unit determines the retransmission upper limit frequency of packets for each real-time streaming on the basis of transmission quality information from a reception device and the quality control information held by means of the quality control information retention unit. Retransmission control units accumulate packets during a fixed period in accordance with the retransmission upper limit frequency determined by means of the delay amount instruction unit, and generate retransmission packets in accordance with a retransmission request from the reception device.

Abstract: A method for allocating a physical hybrid ARQ indicator channel (PHICH) is discussed. The method includes allocating a CDM group according to a cyclic prefix type in consideration of a ratio of the numbers of necessary CDM groups according to spreading factors, and allocating a PHICH to the allocated CDM group. The PHICH includes an ACK/NACK signal multiplexed by code division multiplexing (CDM). Therefore, resources for PHICH transmission are efficiently allocated and a transmission structure can be maintained irrespective of a spreading factor.

Abstract: The present invention relates to a method of communicating in a network, comprising a secondary station transmitting to a primary station a data packet comprising a report, the secondary station monitoring before transmission of the packet whether said packet includes an indication of the order of transmission in a sequence of transmitted packets, and adding an indication of the order of transmission in a sequence of transmitted packets.

Abstract: The data transfer control device of the present invention is capable of improving data transfer efficiency while discarding error data, a DMA parameter storing control unit (1112) temporarily stores parameters to a store resource; a data processing unit (1201) performs error detection processing for data that is transferred; a DMA parameter return control unit (1122) causes parameters used at transfer time of data for which the processing result in the error detection processing was an error to be returned as parameters for subsequent data transfer use from the store resource; and a completion notification delay control unit (1121), with regard to the parameters, causes the completion notification to a host system that indicates that data transfer has completed normally for each of the parameters to wait for normal completion of data transfer that uses parameters that had been set earlier than each of the first-mentioned parameters.

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 method for data storage includes storing data, which is encoded with an Error Correction Code (ECC), in a group of analog memory cells by writing respective first storage values to the memory cells in the group. After storing the data, respective second storage values are read from the memory cells in the group, and the read second storage values are processed so as to decode the ECC. Responsively to a failure in decoding the ECC, one or more of the second storage values that potentially caused the failure are identified as suspect storage values. Respective third storage values are re-read from a subset of the memory cells that includes the memory cells holding the suspect storage values. The ECC is re-decoded using the third storage values so as to reconstruct the stored data.

Abstract: According to an embodiment, an IC card includes a communication section and a control section. The control section divides data which is transmitted to the external device. Moreover, the control section transmits a divided data portion to which an error detection code is given, to the external device through the communication section intermittently so as to make a predetermined non-transmission period. Moreover, the control section detects an error notice showing a failure in receiving divided data from the external device in the predetermined period. Furthermore, the control section retransmits the divided data portion to which the error detection code is given transmitted last after detecting the error notice.

Abstract: A method of transmitting data via a wireless transmission path, that may include a user equipment as a first end point, a base station as a second end point, and at least one relay station as an intermediate point, includes receiving a data transmission from a prior point in the wireless transmission path, and, substantially concurrently, forwarding the received data to the next point in the transmission path, and determining whether the received data is corrupt. The method further includes transmitting a transmission message to the next point in the transmission path indicating whether the received data was corrupt. The method finally includes, when the data is not corrupt, transmitting a receipt message to the prior point indicating that the data was uncorrupt when received.

Abstract: In a method for generating a data unit for transmission in a wireless network, a physical layer (PHY) preamble is generated. A field to indicate whether an acknowledgment data unit is intended to follow the data unit is generated and included in the PHY preamble. A media access control layer (MAC) header is generated, and the data unit is generated to include the PHY preamble and the MAC header. The data unit is transmitted.

Abstract: The present invention relates to a method for allowing a terminal to transmit uplink data through an HARQ method in a wireless communication system that supports MIMO transmission comprises the steps of: transmitting a plurality of data blocks to a base station on the basis of an uplink grant; receiving, from the base station, control information which indicates a NACK for some data blocks among the plurality of data blocks; selecting, according to a predetermined rule shared in the terminal and the base station, a precoding matrix which is to be applied to the data blocks for which the NACK is indicated; and retransmitting the data blocks, for which the NACK is indicated, to the base station by applying the selected precoding matrix.

Abstract: To improve throughput by reducing the resource used for transmitting a parameter relating to retransmission control and decreasing overhead of retransmission control signaling. Where a retransmission control method is employed with adaptive MCS control in which the encoding rate can be changed, the scheduling section sets the MCS in accordance with CQI notified from the communication counterpart apparatus. When transmission data is encoded, the RV parameter bit-number setting section sets the number of bits used for signaling the RV parameter to decrease as the encoding rate of the first transmission is decreased and sets the RV parameter based on the number of bits. For example, in a case where the encoding rate R is R>2/3, two bits are set. In a case where the encoding rate 1/3<R?2/3, one bit is set. On the other hand, in a case where R?1/3, zero bits is set.

Abstract: Embodiments related to retransmission in a communication system are described and depicted. In one embodiment, a retransmission entity repeats a transmission of a data transfer unit by the device after a predetermined number of other transmitted data transfer units has been transmitted. The retransmission entity may also determine whether a measure for a time period since the first transmission of the data transfer unit by the device has exceeded a predetermined threshold and to provide a final transmission of the data transfer unit based on the determining that the measure for the time period has exceeded the predetermined threshold.

Abstract: Methods and apparatus are described for determining, via a Hybrid Automatic Repeat Request (HARQ) module, that a maximum number of retransmissions has been reached for a HARQ packet. The HARQ module may communicate an internal NACK to a message retransmission module indicating a transmission failure. The message retransmission module may retransmit at least a part of the message. The retransmission may be performed prior to the expiration of a timer.

Abstract: An Acknowledgement-Negative Acknowledgement (ACK-NACK) feedback message transmitted from a receiving device to a source device indicates which code words within a transport block transmitted from the source device to the receiving device were received in error by the receiving device. The ACK-NACK message has a variable format based on the number of code words in the transport block and the number of code words received in error.

Abstract: A method of supporting Hybrid Automatic Repeat Request (HARQ) includes receiving an initial uplink grant on a downlink channel, transmitting uplink data on an uplink channel using the initial uplink grant, receiving a request for retransmission of the uplink data, determining at least one transmission parameter of a channel quality indicator (CQI) from the initial uplink grant, multiplexing retransmission data of the uplink data with the CQI, and transmitting the multiplexed data on the uplink channel. Amount of resources for transmission of the CQI is determined based on the at least one transmission parameter.

Abstract: A method and apparatus for dynamic acknowledgement repetition for a downlink medium access control packet data unit transmission ‘MAC PDU’ requiring multiple acknowledgements, the method having the steps of: receiving the downlink MAC PDU requiring multiple acknowledgements; and utilizing a differentiating factor and acknowledgement scheme, sending the multiple acknowledgements.

Abstract: A semiconductor device include: a first reception inductor pad through configured to receive data from a first transmission inductor pad; a second reception inductor pad configured to receive a clock from a second transmission inductor pad; and a data recovery unit configured to generate an output data.

Abstract: Resource mapping and coding schemes to handle bursty interference are disclosed that provide for spreading the modulated symbols for one or more transmission code words over more symbols in the time-frequency transmission stream. Certain aspects allow for the modulated symbols to be based on bits from more than one code word. Other aspects also provide for re-mapping code word transmission sequences for re-transmissions based on the number of re-transmissions requested by the receiver. Additional aspects provide for layered coding that uses a lower fixed-size constellation to encode/decode transmissions in a layered manner in order to achieve a larger-size constellation encoding. The layered encoding process allows the transmitter and receiver to use different coding rates for each coding layer. The layered encoding process also allows interference from neighboring cells to be canceled without knowledge of the actual constellation used to code the interfering neighboring signal.

Abstract: A computer receives, using a first communication method, first data transmitted from a first information processing device. The computer transmits, using a second communication method different from the first communication method, the first data to a second information processing device different from the first information processing device. The computer receives, using the second communication method, a reception acknowledgement for the first data from the second information processing device. The computer transmits, using the first communication method, the reception acknowledgement to the first information processing device. The computer detects one of a first error and a second error. The first error is an error in communication between the computer and the first information processing device. The second error is an error in communication between the computer and the second information processing device.

Abstract: In an embodiment, an apparatus includes a consuming logic to request and process data including a critical data portion and a second data portion, the data stored in a memory coupled to a processor interposed between the apparatus and the memory. In addition, the apparatus includes a protocol stack logic coupled to the consuming logic to issue a read request to the memory via the processor to request the data and to receive a plurality of completions responsive to the read request. In an embodiment, the protocol stack logic includes a completion handling logic to send data of a first of the completions to the consuming logic before protocol stack processing is completed on the completions. Other embodiments are described and claimed.

Abstract: Embodiments of the present invention provide systems for incorporating bonding processors while avoiding bonding processor buffer overflow by initiating retransmission requests on all data lines whenever corrupted data is encountered on one data line. Initiating these “extra” retransmission requests equalizes retransmissions delays over all transmission lines, preventing the bonding processor from receiving excess data that cannot be reassembled until the retransmission request is processed.

Abstract: A system and method for permuting known and unknown message bits before encoding to provide a beneficial rearrangement of bits. Such a method can improve distance properties in the resulting subcode. In various embodiments, the structure of a beneficial rearrangement is dependent on the parameters of how known and unknown bits are grouped and on the specific type of code being used. Given these two parameters, the message bits can be rearranged to more efficiently leverage any apriori knowledge.

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: An event trigger and management system for providing automatic repeat requests (ARQs) by a single timer and a method thereof are provided. Various type timers for providing an ARQ are integrated into a single timer. Through a data structure of a timer node of automatic repeat requests time series, the automatic repeat request time series can be managed only by a single timer. Therefore, the efficiency of controlling and managing a timer associated with Worldwide Interoperability for Microwave Access (WiMAX) may be achieved.

Abstract: A method and apparatus is disclosed herein for performing wireless communication.

Abstract: The present invention relates to a wireless communication system, and more particularly, to a method and apparatus for performing a hybrid automatic repeat request process for an uplink multi-codeword transmission in a wireless communication system which supports a multi-antenna transmission. The uplink multi-codeword transmission method according to one embodiment comprises the following steps: transmitting first and second codewords, transmitting information on the status of transmission buffer for the first and second codewords, receiving downlink control information (DCI) containing acknowledgement (ACK)/negative acknowledgement (NACK) information on each of the first and second codewords, and re-transmitting the codeword for NACK information, wherein the codeword for NACK information, wherein the codeword for ACK information is not transmitted to a base station in cases where the transmission buffer is empty.

Abstract: A transmission apparatus controls a transport format for retransmission of data packets transmitted uplink to a receiving apparatus via at least one data channel using an automatic repeat request (ARQ) protocol. A transmitter transmits an uplink data packet via the data channel to the receiving apparatus, and a receiver receives a first information element along with a second information element from the receiving apparatus. The first information element indicates whether to perform a retransmission of the uplink data packet at the transmission apparatus, and the second information element indicates a transport format for the retransmission. The transmitter transmits the retransmission from the transmission apparatus to the receiving apparatus according to the transport format indicated in the second information element using a transmission timing based on the ARQ protocol.

Abstract: The present invention relates to a method and device for enhancing coverage of a power-limited mobile terminal by sending information relating to a single Hybrid Automatic Repeat Request (HARQ) process from the mobile terminal to a base station using several transmission time intervals.

Abstract: In wireless communication networks that use ARQ/HARQ feedback protocols, when a first device receives an apparent HARQ ACK from a second device, the first device may make a new transmission using a HARQ Channel ID whose previous usage was under conditions indicating a likelihood of error in the ACK. When the second device receives the new transmission, the reuse of that HARQ Channel ID in a new transmission rather than a retransmission lets the second device know that its previous NAK transmission was incorrectly received as an ACK.

Abstract: Provided is a method and apparatus for controlling transmission power in a wireless communication system. A terminal sets transmission power of a physical uplink control channel (PUCCH). Among a plurality of physical uplink shared channels (PUSCHs), at least one PUSCH to which uplink control information (UCI) is not mapped is decreased in transmission power based on a maximum transmission power of the terminal and the transmission power of the PUCCH, and transmission power of at least one second PUSCH, of the plurality of PUSCHs to which UCI is mapped, is set. At this time, the UCI and uplink data are transmitted through the PUCCH, the at least one first PUSCH, and the at least one second PUSCH; and the at least one first PUSCH and the at least one second PUSCH are allocated to component carriers (CCs) of a plurality of uplinks (ULs).

Abstract: A programmable characterization-debug-test engine (PCDTE) on an integrated circuit chip. The PCDTE includes an instruction memory that receives and stores instructions provided on a chip interface, and a configuration memory that receives and stores configuration values provided on the chip interface. The PCDTE also includes a controller that configures a plurality of address counters and data registers in response to the configuration values. The controller also executes the instructions, wherein read/write addresses and write data are retrieved from the counters in response to the instructions. The retrieved read/write addresses and write data are used to access a memory under test. Multiple ports of the memory under test may be simultaneously accessed. Multiple instructions may be linked. The instructions may specify special counting functions within the counters and/or specify integrated (linked) counters.

Abstract: Aspects of the disclosure can provide a method and an apparatus to decode a data stream based on multiple transmissions with efficient usages of storage and power resources. The method can include receiving a first plurality of encoded code blocks corresponding to a first transmission of a transport block, decoding the first plurality of encoded code blocks into decoded code blocks, error detecting the decoded code blocks, and storing a decoding history of the decoded code blocks. Further, the method can include receiving a second plurality of encoded code blocks corresponding to a retransmission of the transport block. The second plurality of encoded code blocks can map the first plurality of encoded code blocks, respectively. The method can selectively decode a subset of the second plurality of encoded code blocks based on the decoding history. In addition, the method can include storing soft bits for code blocks that failed decoding.

Abstract: A system for delivering content over a network includes a server. The server is configured to divide the content into multiple segments, to create multiple data streams using the segments of the content, and to transmit each of the data streams via a respective multicast session, wherein a copy of each of the multiple segments is transmitted during a single time slot of the multicast session.

Abstract: A method, device and computer program product for transmitting data blocks in an LTE or similar wireless communication system supporting HARQ and TTI bundling, with dynamic TTI bundle sizing is provided. Each TTI bundle includes a number of redundancy versions of a data block, for example differently encoded versions of the data block which can be combined together in accordance with Type-II HARQ. Plural TTI bundles can be transmitted as necessary in accordance with HARQ, for example in response to a NACK. The present technology involves adjusting the TTI bundle size for a given HARQ process, wherein at least two TTI bundles have different sizes. In various embodiments, the TTI bundle size progressively decreases with retransmissions so that the last TTI bundle is not excessively large, thereby reducing resource waste. TTI bundle size adjustment may be implemented in the uplink, downlink, or both.

Abstract: The invention relates to a method for providing control signalling associated to a protocol data unit conveying user data in a mobile communication system and to the control channel signal. The invention also provides a mobile station and a base station and their respective operation in view of the newly defined control channel signals. To reduce the control channel overhead, the invention suggests defining a common field for the transport format and redundancy version in the control channel information format. According to one approach, the common field is used to jointly encode transport format and redundancy version therein. According to another aspect, one shared field is provided on the control channel signal that indicates either a transport format or a redundancy version depending of whether the control channel signal relates to an initial transmission or a retransmission. In another embodiment, further enhancements to a HARQ protocol are suggested for addressing certain error cases.

Abstract: A method and system for large data transfer between a sender and a receiver. The sender transmits to the receiver a plurality of data packets in sequence. The time elapsed for each of the plurality of data packets after transmission of said each of the plurality of data packets is determined. The receiver transmits a message from the receiver to the sender notifying the sender that an identified one of the plurality of the data packets is missing. The sender retransmits to the receiver the identified one of the plurality of data packets only when the elapsed time determined for the identified one of the plurality of the data packets is greater than a predetermined time interval.