Method for transmission channel selection in a multiantenna network radio connection that is used to transmit data by means of radio signals between a radio base station (2, 120a, 120b, 130a, 140a) and a mobile terminal (17, 170, 1700), wherein the radio base station (2, 120a, 120b, 130a, 140a) and the mobile terminal (17, 170, 1700) each have at least two antennas (4, 5, 6, 7) that form a plurality of transmission paths (8, 9, 10, 11) for the radio connection and at least two transmission channels for the data transmission, which each use one or more of the transmission paths (8, 9, 10, 11) in accordance with a channel matrix, - the mobile terminal (17, 170, 1700) has at least one decoder that can be used to decode radio signals received from at least one of the terminal antennas (6, 7) to obtain the data, and - the transmission channel selection is used to decide which instance(s) of the transmission paths and which communication system technology are used to transmit the data between the radio base station (2, 120a, 120b, 130a, 140a) and the mobile terminal (17, 170, 1700), comprising the following steps: - the mobile radio base station (2, 120a, 120b, 130a, 140a) uses the transmission paths (8, 9, 10, 11) to transmit mobile radio signals for first data to the mobile terminal (17, 170, 1700) using at least two different communication system technologies, - the mobile radio signals are supplied to the decoder on a transmission-channel-by-transmission-channel basis, - the decoder decodes the mobile radio signals and in so doing obtains the first data on a transmission-channel-by-transmission-channel basis, - the decoded first data are used on a transmission-channel-by-transmission-channel basis to form at least one quality value that is representative of a quality of the data transmission via the respective transmission channel, and - wherein the transmission channel is selected on the basis of a comparison of the quality values of the transmission channels, and the transmission channel selection is made for the subsequent transmission of second data that form useful data. - the mobile terminal (17, 170, 1700) has at least one decoder that can be used to decode radio signals received from at least one of the terminal antennas (6, 7) to obtain the data, and - the transmission channel selection is used to decide which instance(s) of the transmission paths and which communication system technology are used to transmit the data between the radio base station (2, 120a, 120b, 130a, 140a) and the mobile terminal (17, 170, 1700), - the mobile radio base station (2, 120a, 120b, 130a, 140a) uses the transmission paths (8, 9, 10, 11) to transmit mobile radio signals for first data to the mobile terminal (17, 170, 1700) using at least two different communication system technologies, - the mobile radio signals are supplied to the decoder on a transmission-channel-by-transmission-channel basis, - the decoder decodes the mobile radio signals and in so doing obtains the first data on a transmission-channel-by-transmission-channel basis, - the decoded first data are used on a transmission-channel-by-transmission-channel basis to form at least one quality value that is representative of a quality of the data transmission via the respective transmission channel, and - wherein the transmission channel is selected on the basis of a comparison of the quality values of the transmission channels, and the transmission channel selection is made for the subsequent transmission of second data that form useful data.