Abstract: A method and system for a cellular telecommunication system is provided. A transmission signal, which includes reference symbols and synchronization symbols, is received from the network node of at least one cell. At least one pre-coding vector is determined for the transmission signal, where one pre-coding vector is associated with transmission by at least one transmit antenna of the network node of the at least one cell. For each of the at least one pre-coding vectors, a channel estimate is estimated for all sub-carriers of the received transmission signal from the received reference symbols and a reference symbol channel model defined for reference symbols of the transmission signal and from the synchronization symbols, the at least one pre-coding vector, and a synchronization symbol channel model defined for synchronization symbols of the transmission signal.

Abstract: A method for investigating a signal in an OFDMA transmission is disclosed. The method comprises receiving the OFDMA transmission and obtaining a resource grid comprising resource elements of the transmission; determining a set of pairs of the resource elements, wherein the resource elements of the pair are disjoint; for each pair, comparing signals of the resource elements of the pair; determining a statistical test value based on the comparisons; and processing the statistical test value to obtain a desired output about the signal. A computer program for implementing the method, a receiver arrangement adapted to perform such investigation, and a communication apparatus using such receiver arrangement are also disclosed.

Abstract: A method for sending a data packet from a base station to a mobile terminal includes signalling to the mobile terminal in a first subframe of a radio channel a first downlink assignment of a first data packet of a bundling window. The bundling window represents a number of data packets, already transmitted or to be transmitted to the mobile terminal, that are to be confirmed by the mobile terminal. The downlink assignment represents information about a minimum total number of data packets within the bundling window that are scheduled to be transmitted to the mobile terminal. The method also includes transmitting data packets from a base station in subframes of the radio channel using the bundling window.

Abstract: A method for a terminal of a cellular telecommunication system for determining system information about a node of a network of the telecommunication system is disclosed. The telecommunication system enables determination of the system information by the terminal from information transmitted from at least one cell operated by the node, where the telecommunication system employs Orthogonal Frequency Division Multiple Access. The method comprises receiving a transmission signal, comprising reference symbols and synchronization symbols, from a network node of the at least one cell; estimating, for each transmit antenna of the network node, a preliminary channel estimate based on the received reference symbols; and estimating a pre-coding vector, being associated with transmission by at least one transmit antenna of the network node of the at least one cell, for the synchronization symbols. Corresponding features for computer program, decoder and terminal are also disclosed.

Abstract: A method for automatic repeat request operation of a plurality of simultaneous automatic repeat request processes is disclosed. The method comprises receiving a transmission comprising at least one transport block; storing soft bits of the transport block in a buffer; and transmitting an automatic repeat request process signal, wherein the transmitting of the automatic repeat request process signal comprises one of: transmitting an acknowledgment signal if the transport block is determined to be properly received, transmitting a negative acknowledgement signal if the transport block is determined to contain an error, and transmitting a blocking indication signal if there is not room enough for the soft bits in the buffer. A transceiver arrangement and a computer program are also disclosed.

Abstract: A method for sending a data packet from a base station to a mobile terminal includes signalling to the mobile terminal in a first subframe of a radio channel a first downlink assignment of a first data packet of a bundling window. The bundling window represents a number of data packets, already transmitted or to be transmitted to the mobile terminal, that are to be confirmed by the mobile terminal. The downlink assignment represents information about a minimum total number of data packets within the bundling window that are scheduled to be transmitted to the mobile terminal. The method also includes transmitting data packets from a base station in subframes of the radio channel using the bundling window.

Abstract: A method for investigating a signal in an OFDMA transmission is disclosed. The method comprises receiving the OFDMA transmission and obtaining a resource grid comprising resource elements of the transmission; determining a set of pairs of the resource elements, wherein the resource elements of the pair are disjoint; for each pair, comparing signals of the resource elements of the pair; determining a statistical test value based on the comparisons; and processing the statistical test value to obtain a desired output about the signal. A computer program for implementing the method, a receiver arrangement adapted to perform such investigation, and a communication apparatus using such receiver arrangement are also disclosed.

Abstract: A method for a terminal of a cellular telecommunication system, wherein the method comprises receiving a transmission signal, comprising reference symbols and synchronisation symbols, from the network node of the at least one cell; determining at least one pre-coding vector, of which one pre-coding vector being associated with transmission by an at least one transmit antenna of the network node of the at least one cell, for the transmission signal; and estimating, for each of the at least one pre-coding vector, a channel estimate for all sub-carriers of the received transmission signal from the received reference symbols and a reference symbol channel model defined for reference symbols of the transmission signal, and from the synchronisation symbols, the at least one pre-coding vector and a synchronisation symbol channel model defined for synchronisation symbols of the transmission signal.

Abstract: A method for a terminal of a cellular telecommunication system for determining system information about a node of a network of the telecommunication system is disclosed. The telecommunication system enables determination of the system information by the terminal from information transmitted from at least one cell operated by the node, where the telecommunication system employs Orthogonal Frequency Division Multiple Access. The method comprises receiving a transmission signal, comprising reference symbols and synchronisation symbols, from a network node of the at least one cell; estimating, for each transmit antenna of the network node, a preliminary channel estimate based on the received reference symbols; and estimating a pre-coding vector, being associated with transmission by at least one transmit antenna of the network node of the at least one cell, for the synchronisation symbols. Corresponding features for computer program, decoder and terminal are also disclosed.