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Error Detection/correction And Fault Detection/recovery > Pulse Or Data Error Handling > Digital Data Error Correction > Request For Retransmission > Retransmission If No Ack Returned

Retransmission If No Ack Returned

Retransmission If No Ack Returned patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

11/15/07 - 20070266292 - Method and apparatus for reduced data block transmission in an automatic repeat request system
A wireless transceiver apparatus (201, 203) and a method of operation in an Automatic Repeat Request (ARQ) mode is disclosed. On the transmitter side a packet of data (113) is fragmented into a series of sequential data blocks and each data block is assigned a block sequence number (601). At ...

10/18/07 - 20070245205 - Automatic repeat request (arq) apparatus and method of multiple input multiple output (mimo) system
Automatic Repeat reQuest (ARQ) apparatus and method of a Multiple Input Multiple Output (MIMO system are provided. The ARQ method includes decoding, when one or more packets are received, the received packets and trying to detect the decoded packets; and storing, when error is detected from the packets, the corresponding ...

10/18/07 - 20070245204 - Retransmitting apparatus and method using relay station in a multi-hop network
An apparatus and method for retransmitting data using an RS in a multi-hop network are provided. When retransmitting data in a BS, the BS transmits data and activates a timer therefor. The BS monitors receipt of a response message for the data until the timer expires. The BS receives the ...

07/19/07 - 20070168827 - Harq protocol with synchronous retransmissions
The present invention relates to a hybrid automatic repeat request (HARQ) method for transmitting data packets from a transmitting entity to a receiving entity via a data channel. Further, the present invention is related to mobile stations, base stations, radio network controllers and communication systems performing in the HARQ method. ...

07/12/07 - 20070162813 - Transmitting station, receiving station, communications method, communications program, computer-readable storage medium containing the program
The current Draft IEEE 802.11e standard specifies two types of schemes for obtaining an acknowledgement from a receiving station: BlockAck and NormalAck. The current specifications allow temporary use of NormalAck while transmitting data frames in a BlockAck scheme. The specifications however does not explicitly describe the data frames that are ...

07/12/07 - 20070162812 - Decoding and reconstruction of data
When applying chase combining in the retransmission protocol of a telecommunication system or other schemes of retransmission protocols which use selfdecodable incremental redundancy, it may not in all cases be the best solution to combine the initial transmission of data up to the latest received. retransmission of the data and ...

07/12/07 - 20070162811 - Re-transmission control method and communication device
A re-transmission control method for a transmitting device that transmits a codeword generated based on a first parity-check matrix to a receiving device, and re-transmits a k-th additional parity generated based on a k-th parity-check matrix to the receiving device when receiving a NAK for the codeword or a (k−1)-th ...

06/28/07 - 20070150788 - Acknowledgement signaling for automatic repeat request mechanisms in wireless networks
The present invention purposes an enhanced acknowledgment/non-acknowledgment signaling applicable to automatic repeat request mechanisms. The automatic repeat request (ARQ) mechanisms is operable with a sender of data packets. The signaling comprises a number of ACK/NACK messages, which are dedicated to be transmitted on a time-multiplexed channel, which is partitioned into ...

05/31/07 - 20070124642 - Automatic request apparatus and method for multihop system in broadband wireless access communication network
Provided are an ARQ apparatus and method for a multihop system in a broadband wireless access communication system. The ARQ method of a relay includes determining if the relay successfully receives specific data from a source and transmitting the specific data to a destination; receiving feedback data from the destination ...

05/31/07 - 20070124641 - Method of improving network layer performance for a wireless station
A method for queuing data frames for improving network layer performance in wireless stations is provided. The method includes loading data frames to be transmitted from a transmitting wireless station into a hardware transmission queue; transmitting the data frames in the hardware transmission queue one data frame at a time; ...

04/05/07 - 20070079208 - Method and system for acknowledging frames in a communication network
A communication device (1001) is provided. The communication device (1001) can include a transceiver (1003), for transmitting and receiving communications when operably connected to a communication network. Also, the communication device (1001) can include a processor (1009) cooperatively operable with the transceiver (1003). The processor (1009) can facilitate receiving (1015) ...

01/18/07 - 20070016838 - Adaptive hybrid arq systems with bcjr decoding
A method and an apparatus of constructing hybrid Automatic Repeat reQuest (ARQ) systems using specific properties of the BCJR error correcting algorithm. Since the convergence to an actual codeword is not always guaranteed with the BCJR, the method and apparatus implements a system, in which two different types of Negative ...

01/11/07 - 20070011555 - Apparatus and method for transmitting/receiving broadcast data in a mobile communication system
A method and apparatus for transmitting a broadcast physical layer packet in a mobile communication system supporting multi-slot transmission and hybrid Automatic Repeat Request (H-ARQ) are provided. The method comprises initially transmitting the broadcast physical layer packet according to a fixed transmission format for at least one first slot interval ...

01/11/07 - 20070011554 - Block acknowledgement request apparatus, systems, and methods
Embodiments of block acknowledgements request apparatus, systems, and methods are generally described herein. Other embodiments may be described and claimed. An originator operating in a frame-aggregating mode sends a multiple-frame data block to a receiver. The block may include a header for each frame. The header may have an indicator ...

12/14/06 - 20060282740 - Method, apparatus and computer program providing multi-carrier acknowledgment channel
A method includes generating a plurality of ACK channels, spreading each of the plurality of ACK channels with a separate one of a plurality of Walsh cover codes, combining each of the plurality of ACK channels, and applying a Walsh cover code to the combined plurality of ACK channels. ...

11/09/06 - 20060253765 - Acknowledgement message modification in communication networks
A method for processing a received encoded data unit comprises: decoding the received encoded data unit; determining whether the encoded data unit has been correctly received; prior to completing the determination of whether the encoded data unit has been correctly received, initiating the transmission of an acknowledgment message; and modifying ...

11/02/06 - 20060248429 - Method and system for improving responsiveness in exchanging frames in a wireless local area network
A method and system for improving responsiveness in exchanging management and control frames in a wireless local area network are disclosed. An initiator sends a frame (action, management, control or data frame) to a responder. Upon correctly receiving the frame, the responder sends a response frame to the initiator instead ...

10/26/06 - 20060242529 - Medium access control-high speed
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 ...

10/19/06 - 20060236190 - Power control of packet data transmission in cellular network
A transmitter for a packet radio network, including means for transmitting a signal including data packets to a receiver, means for receiving acknowledgement messages from the receiver, each acknowledgement message indicating whether or not a data packet was received successfully, and means for adjusting transmit power of the signal in ...

09/14/06 - 20060206774 - Data transmitting/receiving system and method thereof
A data transmitter transmitting a data packet containing identifier information including a kind of data, a sequence of data, and/or a packet generating sequence. A receiver extracting a packet number and the identifier information for an error-receipt occurring data packet based upon the identifier information recorded in a header of ...

08/31/06 - 20060195753 - Bitmap manager, method of allocating a bitmap memory, method of generating an acknowledgement between network entities, and network entity implementing the same
A bitmap manager, a method of allocating a bitmap memory, a method of generating an acknowledgement between network entities, and a network entity implementing the same. The bitmap manager may include a bitmap memory for storing a block acknowledge of received frames based on a bitmap, a bitmap management information ...

08/24/06 - 20060190796 - Radio transmission device and radio transmission method
An RV pattern selection section (103) stores at least two RV parameter tables, for QPSK and 16QAM, selects a corresponding RV parameter Xrv from the RV parameter tables based on a correlation between an estimated transmission count input from a transmission count estimation section (101) and a coding rate input ...

08/17/06 - 20060184854 - Allocating data bursts and supporting hybrid auto retransmission request in orthogonal frequency division multiplexing access radio access system
The present invention relates to allocating data regions in an orthogonal frequency division multiplexing access system. The present invention comprises receiving a message comprising information for locating a data region of a data map allocated to a mobile station identified in the message for transmitting and receiving information, and identifying ...

08/17/06 - 20060184853 - Operating method for a motorized roller blind
The method describes the operation of a roller blind including a moving element that can be operated via an actuator and a handheld-type remote control used to set the value of an operating parameter of the system, the value of this parameter being modifiable between two limit values. In this ...

08/10/06 - 20060179392 - Handshakeless retransmission protocol
A retransmission method for use in handshakeless communication consistent with certain embodiments involves transmitting a sequence of packets from a packet source to a packet receiving device, each packet in the sequence of packets having a sequence number associated therewith, said transmitting including retrieving a next packet from a transmission ...

08/10/06 - 20060179391 - Wireless identification protocol with confirmation of successful transmission
Systems and methods provide an acknowledgement protocol on completion of data transmission. A coupler board of a wireless identification system interfaces between a host processor of the wireless identification system and a replaceable unit monitor. The coupler board transmits data to the replaceable unit monitor. The replaceable unit monitor transmits ...

07/13/06 - 20060156166 - Operation of a forward link acknowledgement channel for the reverse link data
An acknowledgement method in a wireless communication system. Initially, a reverse supplemental channel (R-SCH) frame is received at a base station. The base station then transmits an acknowledgement (ACK) signal if quality of the received R-SCH frame is indicated as being good. A negative acknowledgement (NAK) signal is transmitted only ...

07/13/06 - 20060156165 - Auto re-transmission request system and method in a wireless communication system
An ARQ system and method for a BWA communication system are provided. A transmitter activates an ARQ timer if exist transmission data or retransmission data and transmits the transmission data or the retransmission data to a receiver. The transmitter then receives a response signal for the transmitted data or the ...

07/13/06 - 20060156164 - Data unit sender and method of controlling the same
A data unit sender and method of controlling a data unit sender are presented, in which a time-out monitoring procedure implements a first, longer time-out period (SRTO), and a second, shorter time-out period (QRTO), where a retransmission is executed after the shorter time-out period if the available transmission capacity value ...

07/06/06 - 20060150051 - Apparatus and method for selecting redundancy version
An apparatus and method for maximizing throughout for HARQ transmissions is provided. Systematic and prodeduralized RV selection is facilitated by determining the parameter “s” by using two important factors affecting the system throughout, specifically the coding gain varying according to the code rate and the balance between energy per systematic ...

05/18/06 - 20060107168 - Method and apparatus for transmitting/receiving virtual block information for multiple segment recovery in data network using transmission control protocol
A method and an apparatus are provided for acknowledging a bitwise block for multiple segment recovery when data is transmitted using a TCP in a data network. A transmitter generates a BBACK including virtual block information consisting of a bit array, each bit of which represents a virtual block of ...

03/02/06 - 20060048034 - Method and apparatus for transmitting block ack frame
A method and apparatus for transmitting a block acknowledgement (ACK) frame are provided. The method for transmitting a block ACK frame includes receiving a plurality of frames from a transmitting station, receiving a request for transmission of a compressed block ACK frame from the transmitting station, checking the reception status ...

02/23/06 - 20060041816 - Method for designing optimum space-time code in a hybrid automatic repeat request system
A method for designing an optimum STC in an HARQ system is provided, in which kth codes are detected which maximize the minimum squared Euclidean distance of the signal matrix of a combination code created by combining first to (k−1)th codes with a kth code. A kth code whose signal ...

11/10/05 - 20050251722 - Method and apparatus for assigning hybrid-automatic repeat request processes
A method and apparatus for assigning automatic repeat request (ARQ)/hybrid-automatic repeat request (H-ARQ) processes in a wireless transmit/receive unit (WTRU) to support enhanced uplink (EU) data transmissions. After parameters associated with the ARQ/H-ARQ processes are configured, the WTRU assigns an ARQ/H-ARQ process for selected data. After transmitting the data, the ...

09/01/05 - 20050193307 - Constellation rearrangement for arq transmit diversity schemes
An ARQ (re-) transmission method of transmitting data in a wireless communication system wherein data packets are transmitted from a transmitter to a receiver, using a first transmission and a second transmission based on a repeat request. The method comprises the steps of modulating data at the transmitter using a ...

08/04/05 - 20050172199 - Reliable method and system for efficiently transporting dynamic data across a network
A data networking system designed to provide efficient yet reliable transportation of data across a time division multiplexed network. This invention allows for redundantly sending and resending of segments in a dynamic manner. In addition, segments are fragmented, resized and sent with low overhead due to dynamic header sizes, segment ...

07/28/05 - 20050166119 - Apparatus and method for performing bit de-collection in a communication system using a high speed downlink packet access ( hsdpa) scheme
An apparatus and a method for performing a bit de-collection according to a hybrid automatic retransmission request are disclosed. The apparatus includes a column counter for increasing one column every four bits and outputting a position of a current column in response to received bit sequences; a state detector for ...



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