Abstract: Methods and systems are proposed for transmitting data from a source (110) to a destination (130) via a relay station (120) having multiple antennae (122, 124). The relay station (120) receives from the source a message containing the data and a first cyclic prefix. It does this using each of its antennae (122, 124), so producing multiple respective received signals. In certain embodiments, the relay station (120) removes the first cyclic prefix from the received signals, replacing it with a new one. In other embodiments, the relay station (120) removes only a portion of the first cyclic prefix. In either case, the relay station (120) may apply space-time coding to generate second signals, which it transmits to the destination (130), which extracts the data. Methods are also proposed for estimating parameters of the channel, to enable the destination (130) to decode the data.

Abstract: In various embodiments, a base station may be provided. The base station may include a first determiner configured to determine whether user data has been received from a radio communication terminal by the base station; a second determiner configured to determine whether information from which it may be determined that the user data has been received from the radio communication terminal by another base station has been received from the other base station; and a transmitter configured to transmit to the radio communication terminal information indicating whether at least one of the base station and the other base station has received the user data based on at least one of the result of the determination of the first determiner and the result of the determination of the second determiner.

Abstract: Methods and systems are proposed for transmitting data from a source (110) to a destination (130) via a relay station (120) having multiple antennae (122, 124). The relay station (120) receives from the source a message containing the data and a first cyclic prefix. It does this using each of its antennae (122, 124), so producing multiple respective received signals. In certain embodiments, the relay station (120) removes the first cyclic prefix from the received signals, replacing it with a new one. In other embodiments, the relay station (120) removes only a portion of the first cyclic prefix. In either case, the relay station (120) may apply space-time coding to generate second signals, which it transmits to the destination (130), which extracts the data. Methods are also proposed for estimating parameters of the channel, to enable the destination (130) to decode the data.

Abstract: Methods and systems are proposed for transmitting data from a source (110) to a destination (130) via a relay station (120) having multiple antennae (122, 124). The relay station (120) receives from the source a message containing the data and a first cyclic prefix. It does this using each of its antennae (122, 124), so producing multiple respective received signals. In certain embodiments, the relay station (120) removes the first cyclic prefix from the received signals, replacing it with a new one. In other embodiments, the relay station (120) removes only a portion of the first cyclic prefix. In either case, the relay station (120) may apply space-time coding to generate second signals, which it transmits to the destination (130), which extracts the data. Methods are also proposed for estimating parameters of the channel, to enable the destination (130) to decode the data.

Abstract: The wireless transmission of layered signals, in a described embodiment, uses multiple relay nodes (304) to implement cooperative diversity. The method includes: (i) receiving layered signals from a source node (300), (ii) receiving, from a destination node (302), a relay allocation parameter to implement a cooperative relay strategy with one or more other relay nodes (304), and (iii) relaying the layered signals to the destination node (302) using the cooperative relay strategy.

Abstract: In various embodiments, a base station may be provided. The base station may include a first determiner configured to determine whether user data has been received from a radio communication terminal by the base station; a second determiner configured to determine whether information from which it may be determined that the user data has been received from the radio communication terminal by another base station has been received from the other base station; and a transmitter configured to transmit to the radio communication terminal information indicating whether at least one of the base station and the other base station has received the user data based on at least one of the result of the determination of the first determiner and the result of the determination of the second determiner.

Abstract: An analog space-time relay method and apparatus for a wireless communication relay channel is disclosed herein. In a specific embodiment, the analog space-time relay channel (100) includes first and second relay antennas (122,124) arranged to relay an information signal transmitted from a source station (110) to a destination station (130).

Abstract: The wireless transmission of layered signals, in a described embodiment, uses multiple relay nodes (304) to implement cooperative diversity. The method includes: (i) receiving layered signals from a source node (300), (ii) receiving, from a destination node (302), a relay allocation parameter to implement a cooperative relay strategy with one or more other relay nodes (304), and (iii) relaying the layered signals to the destination node (302) using the cooperative relay strategy.

Abstract: Methods and systems are proposed for transmitting data from a source (110) to a destination (130) via a relay station (120) having multiple antennae (122, 124). The relay station (120) receives from the source a message containing the data and a first cyclic prefix. It does this using each of its antennae (122, 124), so producing multiple respective received signals. In certain embodiments, the relay station (120) removes the first cyclic prefix from the received signals, replacing it with a new one. In other embodiments, the relay station (120) removes only a portion of the first cyclic prefix. In either case, the relay station (120) may apply space-time coding to generate second signals, which it transmits to the destination (130), which extracts the data. Methods are also proposed for estimating parameters of the channel, to enable the destination (130) to decode the data.

Abstract: A method for communication (400) comprising partitioning a plurality of user equipment (UE) within a cell of a base station (BS) into a cell-edge user group or a cell-interior user group (402), determining a bandwidth allocation for the cell-edge user group that is orthogonal with cell-edge user groups of one or more neighbouring base stations, determining a frequency allocation for each UE in the cell-edge user group that is orthogonal with cell-edge user groups of one or more neighbouring base stations, determining a minimum transmit power for the cell-edge user group based on the bandwidth allocation and frequency allocation for the cell-edge user group and a predetermined minimum target rate (404), determining a transmit power for each UE in the cell-interior user group based on the determined transmit power for the cell-edge user group, and determining a frequency allocation for each UE of the cell-interior user group based on the determined transmit power for the cell-edge group and a weighting factor (