Abstract: Techniques for supporting broadcast/multiple transmission to multiple terminals with feedback and rate adaptation are described. In an aspect, a combination of HARQ and at least one shared feedback channel may be used to support broadcast/multicast transmission. In one design, a base station may send at least one transmission of a packet to multiple terminals, one transmission at a time. The base station may receive feedback information (e.g., NAK) for the packet from the terminals on the shared feedback channel(s). The base station may determine whether to terminate the packet early and/or may select at least one transmission parameter for another packet based on the feedback information for the packet. In another aspect, a transport format for a broadcast/multicast transmission may be selected based on CQI information from terminals receiving the transmission. The terminals may send CQI information at a slow rate and/or only certain terminals may send CQI information.

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

Abstract: A method and apparatus for multiplexing positive or negative acknowledgement signals (ACK or NACK, respectively) and channel quality indication (CQI) signals from a user equipment (UE) to a serving base station (Node B) during a CQI transmission time interval (TTI) in a single-carrier frequency division multiple access (SC-FDMA) communication system. The UE does not have simultaneous data transmission. The multiplexing of acknowledgement signals is implicitly achieved by the UE applying different orthogonal covers on the reference signal (RS) symbols transmitted in the CQI TTI, depending on whether the UE sends ACK or NACK. At the Node B receiver, the detection of ACK or NACK is based on the accumulated RS energy, after removing each of the possible orthogonal covers applied at the UE transmitter. For robust system performance, absence of ACK/NACK and NACK are mapped onto the same orthogonal cover.

Abstract: Aspects of a method and system for a transmitting antenna selection failure recover mode are presented. Aspects of the system may include a transmitting mobile terminal that enables selection of a sequence of protocol data units (PDU), for example a sequence of sounding frames, which may be transmitted during an antenna selection procedure. During transmission of the selected PDU sequence, the transmitting mobile terminal may receive an antenna selection failure indication frame. The transmitting mobile terminal may enable retransmission of at least one previously transmitted PDU in the PDU sequence based on the failure indication. Transmission of subsequent PDUs in the PDU sequence may resume after the retransmission. Alternatively, upon receipt of the failure indication frame the transmitting mobile terminal may restart the selected frame sequence from the beginning, or may select a subsequent PDU frame sequence.

Abstract: For downlink cooperative multi-point (CoMP) communication, each cooperating transmission point (e.g., base station) may send a retransmission packet with a different redundancy version to a user equipment (UE). Mechanisms may be provided to determine which transmission point should send packets with which redundancy version. For uplink CoMP, in order to reduce the backhaul overhead, each cooperating base station may share only a fraction of the retransmitted packet with the serving base station. Also, different retransmission packets with different redundancy versions can be transmitted to different cooperating base stations using spatial degrees of freedom.

Abstract: A retransmission control method involving a physical control channel transmitting step of transmitting, at a transmitting side apparatus, a new data indicator updated upon transmission of a new packet, and a retransmission sequence number indicating whether transmission is first transmission or retransmission, through a physical control channel associated with a physical data channel, and a transmission acknowledgement information transmitting step of transmitting, at a receiving side apparatus, 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 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 itself. Furthermore, the invention also provides a mobile station and a base station and their respective operation in view of the newly defined control channel signals defined herein. In order 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.

Abstract: A sender for a communications system transmits data as packets to a receiver. The receiver transmits quality values to the sender representing the reception quality of packets received with errors. The receiver stores information regarding a number of received data packets, and there is a relay transceiver between the sender and the receiver. Both the relay transceiver and the sender can encode data packets into composite packets, and to transmit composite packets to the receiver. The stored information in the receiver comprises the data in correctly received packets and information regarding the reception quality of packets received with errors and the data of those packets, and the stored information is used by the receiver to decode composite packets, thereby extracting the data in the packets of the composite packets.

Abstract: Provided are an interleaving apparatus for improving transmission performance and an interleaving method used by the interleaving apparatus. The interleaving apparatus determines the type of data at each element position of an interleaving matrix, reads encoded data, which corresponds to the determined type of data at each element position, from an encoder, rearranges the read data in an order determined by the interleaving matrix, and outputs the rearranged data. Since the interleaving apparatus does not include a memory, it can prevent delay in signal processing, thereby improving transmission performance.

Abstract: A method of improving uplink transmission of TTI bundling for a MAC layer of a user equipment in a wireless communication system includes receiving a first signaling and a second signaling, and when a transmission collision happens between a first transmission corresponding to the first signaling and a second transmission corresponding to the second signaling, handling the transmission collision according to a type of the first signaling and a type of the second signaling.

Abstract: The present invention is generally directed towards a remote access architecture for providing peer-to-peer communications and remote access connectivity. In one embodiment, the remote access architecture of the present provides a method for establishing a direct connection between peer computing devices via a third computing device, such as a gateway.

Abstract: A method for packet retransmission employing feedback information is disclosed. The method for packet retransmission employing feedback information comprises receiving reception acknowledgement information from a receiver after a transmitter transmits packets, the reception acknowledgement information representing channel status information and decoding success/failure of the packets; and changing a retransmission mode in accordance with the channel status information if the reception acknowledgement information represents decoding failure, and transmitting retransmission packets of the packets in accordance with the changed retransmission mode. Thus, it is possible to improve decoding probability of the receiver and increase efficiency of retransmission.

Abstract: A method and apparatus may be used for supporting multiple hybrid automatic repeat request (H-ARQ) processes per transmission time interval (TTI). A transmitter and a receiver may include a plurality of H-ARQ processes. Each H-ARQ process may transmit and receive one TB per TTI. The transmitter may generate a plurality of TBs and assign each TB to a H-ARQ process. The transmitter may send control information for each TB, which may include H-ARQ information associated TBs with the TBs. The transmitter may send the TBs using the associated H-ARQ processes simultaneously per TTI. After receiving the TBs, the receiver may send feedback for each of the H-ARQ processes and associated TBs indicating successful or unsuccessful receipt of each of the TBs to the transmitter. The feedback for multiple TBs may be combined for the simultaneously transmitted H-ARQ processes, (i.e., TBs).

Abstract: Systems and associated methods provide a cluster-level semi-supervision model for inter-active clustering. Embodiments accept user provided semi-supervision for updating cluster descriptions and assignment of data items to clusters. Assignment feedback re-assigns data items among existing clusters, while cluster description feedback helps to position existing cluster centers more meaningfully. The feedback can continue until the user is satisfied with the clustering achieved or one or more predetermined stopping criteria have been reached.

Abstract: Error correcting codes (ECCs) have been proposed to be used in high frequency memory devices to detect errors in signals transmitted between a memory controller and a memory device. For high frequency memory devices, ECCs have delay characteristics of greater than one clock cycle. When the delay exceeds one clock cycle but is much less than two clock cycles, an entire second clock cycle must be added. By calculating and comparing the ECC value in a static logic circuit and a dynamic logic circuit, the logic delay is substantially reduced. In addition, the ECC value may be calculated and compared using two sets of static logic gates, where the second static logic gate is clocked by a clock signal that is delayed relative to the clock signal of the first set of logic gates.

Abstract: This invention is a method of wireless communication having a communications protocol providing more downlink subframes than uplink subframes. The user equipment transmits a combination of a plurality of ACK/NAK response signals and related data. The related data could be the number of bits N of the plurality of ACK/NAK response signals or the number of detected downlink communications grants S requiring ACK/NAK response signals. This related data could be a cyclical redundancy check set of bits which may be scrambled upon the numbers N or S. Similar selections are feasible with resource elements or an index of a modulation symbol or codeword.

Abstract: A method is provided for reuse of one of a plurality of hybrid automatic repeat request (HARQ) Process ID. The method includes receiving signaling used to associate at least one of the plurality of HARQ Process IDs with semi-persistent scheduling. The method further includes determining an activation of a semi-persistent resource. The method further includes associating the at least one of the plurality of HARQ Process IDs with the semi-persistent resource. The method further includes receiving a non-semi-persistent data communication utilizing the at least one of a plurality of HARQ Process IDs.

Abstract: Systems and methods of information transmission are provided. An endpoint receiving packets with non-voice information transmits negative and positive acknowledgements over a dedicated channel in an uplink subframe. When the endpoint receives packets with voice information, the endpoint transmits negative acknowledgements over a shared channel, but does not transmit positive acknowledgements.

Abstract: A transmission method for transmitting information between a transmission device and a reception device, the method includes determining whether or not an error is detected in information from the transmission device, requesting the transmission device to re-transmit the error-detected information when an error is detected, re-transmitting information corresponding to a re-transmission request as re-transmission information from the transmission device when the re-transmission request is detected, registering the re-transmission information as a test pattern, transmitting the registered test pattern to the reception device, registering the re-transmission data received from the transmission device as a collation pattern, reading out the collation pattern corresponding to the received test pattern, and collating the test pattern and the collation pattern when a test pattern is received from the transmission device, and adjusting and setting a parameter of the reception device on the basis of a pattern collatio

Abstract: A portable device, such as a mobile terminal or user equipment, for encoding uplink acknowledgments to downlink transmissions. The portable device includes a receiver configured to receive a plurality of data blocks, such that each of the data blocks include an associated cyclic redundancy check (CRC), and a processor configured to determine received status for each of the data blocks by checking the CRC of each of the data blocks. The portable device further includes a transmitter for transmitting a response sequence which indicates the received status of all of the data blocks.

Abstract: An information storage medium according to one embodiment of the invention includes a card main body embedded with a module, in which the module includes a communication control unit for interpreting received data, and selectively executing normal processing for returning response data to a transmission source of the received data based on a determination result indicating that the received data is correct data complying with a predetermined communication protocol, and error processing for returning an error to the transmission source of the received data based on a determination result indicating that the received data is error data.

Abstract: A communication system includes a downlink indicator channel for the transmission of an indicator signal indicating that a data packet is scheduled to be transmitted on a downlink data channel from a primary station to a secondary station. In response to detection of the indicator signal, the secondary station transmits a status signal, for example a negative acknowledgement signal, on an uplink channel to the primary station immediately before transmission of a positive or negative acknowledgement signal to indicate the status of the received data packet. By providing the primary station with two chances to detect the case where the secondary station fails to detect the indicator signal, peak power requirements of the uplink channel can be reduced, thereby reducing system interference levels.

Abstract: An enhanced semi-explicit solution for HARQ feedback channel indexing in wireless communication systems is disclosed. The HARQ feedback channel indexing method may be applied to the HARQ feedback channel transmitted in the downlink, as well as the HARQ feedback channel transmitted in the uplink.

Abstract: A method and a device for reporting the number of correctly decoded transport blocks in a wireless system. The maximum number of correctly decoded transport blocks within a reporting period is determined. Then the actual number of correctly decoded transport blocks is determined and cultivated into an indication thereof on the basis of the maximum number. The indication is sent to a network element capable of decoding it for analysis.

Abstract: A method of performing wireless communications. The method receives at a receiving unit a sequence of data blocks from a transmitting unit. The method also identifies at the receiving unit a first number of invalid sequential data blocks in the sequence and a second number of valid sequential data blocks in the sequence. The method also communicates from the receiving unit a wireless message to the transmitting unit. The wireless message comprises a first field that specifies the first number and a second field that specifies the second number—the encoding of the first field is operable to specify a different maximum than an encoding of the second field.

Abstract: A mobile terminal and a method of performing a random access procedure by the terminal is achieved by transmitting a random access preamble to a base station, receiving a random access response from the base station, and performing an uplink transmission using an uplink grant from the base station. The uplink transmission is performed by using a maximum number of HARQ (Hybrid Automatic Repeat reQuest) transmissions parameter, which is included in a System Information Block (SIB) received from the base station.

Abstract: Different transmissions based on different content blocks which were segmented from the same digital content according to different segmentation schemes, where each of the content blocks has any substring in common with at least one of the other content blocks, are received by a receiving radio communication station, for example a mobile telephone or a mobile network base station. Certain encoded received bits derived from different ones of the transmissions are combined into combined bits. Other encoded received bits derived from one or more of the different transmissions are provided together with the combined bits to a decoder.

Abstract: A resource allocation method for a HARQ is disclosed. This resource allocation method includes, transmitting an MAP message having specific information indicating whether or not a differential allocation is supported, storing MAP information contained in the MAP message during a predetermined frame, and upon receiving an NACK message during the predetermined frame, transmitting sub-burst information having differential allocation information related to sub-bursts to be retransmitted. If there are a large amount of HARQ traffic, each embodiment of the present invention transmits only differential information on the basis of MAP information of the initial MAP message when HARQ sub-bursts is retransmitted.

Abstract: A method for implementation of HARQ between a transmitting node and a receiving node in a communication network is provided. HARQ processes may be selected from a list for instantiation according to a policy that may deviate from strict first-in, first-out processing of packets. The greater flexibility that this affords may lead to improved efficiency in the use of transmission resources.

Abstract: A base station (100) includes: a scheduling unit (106) configured to use, for a particular radio bearer, any one of a persistent scheduling in which data addressed to a mobile station (200) is transmitted at a predetermined timing, and a non-persistent scheduling in which a transmission opportunity is assigned to data addressed to a mobile station having a favorable reception condition; a control information generating unit (110) configured to generate control information to be used in the persistent scheduling; a control information notifying unit (112) configured to notify, to the mobile station, the control information; and a switching notifying unit (112) configured to notify, to the mobile station (200), that a scheduling to be used for the particular bearer should be switched from the non-persistent scheduling to the persistent scheduling, wherein the scheduling unit (106) is configured to switch the scheduling to be used for the particular radio bearer, from the non-persistent scheduling to the persist

Abstract: In a transmitter (2001), when generating a transmission frame having no limitation to a window size, a batch-transmission-end flag generating circuit (2004) and a sequence number generating circuit (2005) respectively adds a batch-transmission-end flag and a sequence number to the transmission frame. In a receiver, if an omission of a sequence number is detected as a result of analyzing sequence numbers of frames having received from the transmitter (2001), retransmission request is made when receiving a frame whose batch-transmission-end flag indicates the end. In this way, retransmission is possible in data transmission using UI frames, and the communication efficiency can be improved.

Abstract: A method in a user equipment (UE) includes transmitting, to a first radio base station, one or more protocol data units (PDUs) that are each associated with a respective Internet Protocol (IP) packet. The method also includes receiving one or more feedback indications from the first radio base station, each indicating whether a corresponding PDU was successfully received, and transmitting a retransmission of at least one PDU based on the feedback indications. Additionally, the method includes determining a time point for performing a cell change based on whether the first radio base station has not successfully received all of the PDUs associated with IP packets for which a complete IP packet has been transmitted and performing the cell change at the determined time point.

Abstract: In the sending of data in a network from a sending node to a receiving node via a relay node, the receiving node sends a notification arranged to notify both the sending node and receiving node of receipt of data at the receiving node. Notifications acknowledge that the data has been correctly received over each individual stage of transmission, and further acknowledge to the sending node that data has been correctly transmitted over the whole transmission path and received at the receiving node. The burden on the network of sending acknowledgments is reduced while notifications of data transmission over single stages and over the whole transmission path are provided.

Abstract: A communication system is provided that facilitates an expedited exchange of a Transmission Control Protocol (TCP) acknowledgment by scheduling the TCP acknowledgment at a higher priority than Best Effort and/or by arranging for a scheduling of the TCP acknowledgment based on a predicted transmission of a request to schedule the TCP acknowledgment.

Abstract: In a wireless communications network, a wireless device may examine the received signal to determine the strength of the received signal, and also determine the level of interference and noise. If a retransmission is needed due to a message being incorrectly received, these factors may then be processed to estimate whether the probable cause of poor reception is interference from a neighboring network. If such interference is the likely cause, the retransmission may be changed to a different time and/or to different frequencies in a subsequent frame, so that the interference from the neighboring network is less likely to reoccur.

Abstract: A transmission within a wireless cellular network may include a first and second type of information. A subframe includes a plurality of symbols, at least one symbol is designated as a data symbol and at least one symbol is designated as a reference signal symbol that contains a pre-defined reference signal. The first type of information is embedded in the data symbols. If the second type of data is expected, then the second type of information is embedded in at least one reference symbol by quadrature amplitude modulating the pre-defined reference signal. The subframe is then transmitted from one node in the network to a second node. If it is determined that the second node is not expecting the second type of information, then a discontinuous transmission (DTX) response is embedded in the reference symbol instead of the second type of information.

Abstract: A method of transmitting scheduling information in time-division-duplex (TDD) system is provided. The method comprises configuring a radio frame, the radio frame comprising at least one downlink subframe and at least one uplink subframe, wherein a downlink subframe is reserved for downlink transmission and an uplink subframe is reserved for uplink transmission, and transmitting scheduling information on a downlink control channel in a downlink subframe, the scheduling information comprising an uplink indicator and uplink resource assignment, the uplink indicator indicating which at least one uplink subframe the uplink resource assignment is valid for. Data can be efficiently transmitted by using an uplink indicator which indicates a specific location of a subframe.

Abstract: An Automatic Retransmission reQuest (ARQ) data block reception apparatus and method in a communication system is provided. In the ARQ method, an ARQ feedback Information Element (IE) is transmitted to an ARQ data block transmission apparatus. The ARQ feedback IE includes a first field for indicating a Connection IDentifier (CID) of an ARQ connection, a second field for indicating the presence/absence of an additional ARQ feedback IE after the ARQ feedback IE, a third field for indicating a type of an Acknowledgement (ACK) MAP included in the ARQ feedback IE, a fourth field for indicating a Block Sequence Number (BSN) of an ARQ data block, and m ACK MAP fields. The m ACK MAP fields each include information indicating presence/absence of an additional ACK MAP field after a corresponding ACK MAP field, and an ACK MAP indicating success/failure in normal reception for each of n ARQ data blocks, wherein m and n each denote an integer greater than or equal to 1.

Abstract: A wireless communication apparatus having a retransmission control unit configured to refer to identification information added to received retransmit data when a second retransmit request is performed after the first transmit request is performed, and not to use the received retransmit data for forming data when the received retransmit data corresponds to the first retransmit request based on the identification information, and to use the received retransmit data for forming data when the received retransmit data corresponds to the second retransmit request based on the identification information.

Abstract: The present invention relates to methods and a transmitter and a receiver for a mobile communication system. The basic idea of the present invention is to recursively derive from previous HARQ feedback the number of HARQ transmissions that is required to be able to decode the transmitted data successfully and to only transmit explicit HARQ feedback information if the decoding result differs from the derived result.

Abstract: A method of controlling a data unit transmission from a sender to a receiver is described, comprising the steps: the sender sending a data unit to the receiver, the receiver sending to the sender a feedback message comprising receipt status information for the data unit indicating one of at least correct receipt and incorrect receipt, the sender, subsequent to receiving the feedback message, sending to the receiver feedback response information indicating a receipt status indicated in the received feedback message.

Abstract: The present invention relates to a resource allocation and data receiving method. A resource allocation message for allocating a resource for an uplink dedicated channel is transmitted to a relay station, a receipt check message on the resource allocation message is received from the relay station, and successful resource allocation is checked.

Abstract: A communication apparatus includes an error detection unit conducting error detection on N packet data units received in N transmission processes; a first transmission unit transmitting an affirmative response signal or a first retransmission request signal depending on a result of the error detection; a storage unit storing an affirmatively responding packet for forwarding to an upper layer; a second transmission unit, if affirmatively responding packets are not consecutive, determining whether a missing packet must be retransmitted and transmitting a second retransmission request signal; and a forwarding unit reordering the packet data units and forwarding the packets in the storage unit to the upper layer.

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: The present invention relates to automatic repeat request (ARQ) in wireless communication systems wherein a coded message block is spread over a plurality of sub-carriers or components. According to the invention an equalizing HARQ method is introduced. The equalizing HARQ identifies (215) and retransmits (230) the most distorted parts of a received coded message block. In addition, the retransmitted parts can optionally be relocated (225) to components of higher quality, which ensures good retransmission quality for those badly distorted parts in the prior transmission. After a soft-bit combination in a receiving node, the final received codeword experience an equalized quality variation with low multi-state performance loss.

Abstract: A base station (103) operates a hybrid retransmission scheme for a communication to a first subscriber unit (101) over a communication channel of an air interface of a cellular communication system. The base station (103) comprises a retransmission parameter controller (209) which sets a transmission parameter, such as a transmit power or an error correcting scheme, for a transmission of the communication in response to an operating point for the retransmission scheme. A CQI processor (203) determines a channel quality indication for the communication channel and a variation processor (205) determines a variation measure of a variation of the channel quality indication. The variation measure can for example be a rate of change. An operating point controller (207) sets the operating point in response to the variation measure. The invention may allow improved setting of transmission parameters for initial transmissions thereby providing higher throughput, reduced resource consumption and reduced delay.

Abstract: A non-terminated packet is transmitted, by utilizing a spatial layer responded with an ACK, which is assumed as a released layer. Alternatively, a non-terminated packet is transmitted by using a released layer and an original spatial layer in combination. Alternatively, a new packet is transmitted in a released layer by utilizating time till termination of transmission of a non-terminated packet. A wireless communication system effectively utilizing a released layer, a terminal and a base station.

Abstract: Embodiments of the present invention provide a method/apparatus to measure the jitter of a timing signal used in an integrated circuit chip. The method/apparatus is used to send data from a launch element using a synchronous data path of the timing signal, receive the data at a capture element using the synchronous data path, wherein the launch element and the capture element are disposed on the same integrated circuit chip upon which the timing signal is generated and/or used, and gather statistics about whether a timing violation has occurred by comparing the sent data with the received data over the course of multiple launch/capture events as the timing is adjusted. Other embodiments may be described and/or claimed.

Abstract: Aspects of a method and system for a transmitting antenna selection failure recover mode are presented. Aspects of the system may include a transmitting mobile terminal that enables selection of a sequence of protocol data units (PDU), for example a sequence of sounding frames, which may be transmitted during an antenna selection procedure. During transmission of the selected PDU sequence, the transmitting mobile terminal may receive an antenna selection failure indication frame. The transmitting mobile terminal may enable retransmission of at least one previously transmitted PDU in the PDU sequence based on the failure indication. Transmission of subsequent PDUs in the PDU sequence may resume after the retransmission. Alternatively, upon receipt of the failure indication frame the transmitting mobile terminal may restart the selected frame sequence from the beginning, or may select a subsequent PDU frame sequence.

Abstract: A method for counting correctly substantial transmission times of a data unit such as an RLC-PDU even if the data unit is divided before being transmitted is provided. The method includes the steps of preparing a counter for the RLC-PDU (#503), making a storage portion store a pointer indicating a position of a division PDU of the RLC-PDU to be transmitted every time when the division PDU obtained by dividing the RLC-PDU is transmitted (#504), determining whether or not the transmission times should be counted along with a transmission of the division PDU to be transmitted based on the pointer of the division PDU to be transmitted and the pointer of a division PDU that was transmitted last time (#505, #506 and #507), and making the counter perform the count process when it is determined that the transmission times should be counted (#508).