Multichannel high-speed data transfer

A method for high-speed data transfer in a digital mobile communication system, comprising the steps of:

• establishing a non-transparent data connection having a number of parallel subchannels allocated on the radio interface, said number being determined by a specific maximum transfer capacity;
• transmitting user data over the non-transparent data connection in data frames by employing a communication protocol which retransmits defective data frames;
• buffering data frames to be transmitted in a transmission buffer;
• monitoring the actual user data rate on the terminal interface,
• monitoring fill level of the transmission buffer,
• transmitting user data in data frames via specific one or ones of said allocated subchannels, the number of said specific ones of said allocated subchannels depending on the actual user data rate and the fill level of the buffer,
• activating discontinuous transmission on the remaining one or ones of said allocated subchannels which do not belong to said specific ones of said allocated subchannels, if any.

A method for high-speed data transfer in a digital mobile communication system, comprising the steps of

• establishing a non-transparent data connection having a number of parallel subchannels allocated on the radio interface, said number being determined by a specific maximum transfer capacity;
• transmitting user data over the non-transparent data connection in data frames by employing a communication protocol which retransmits defective data frames;
• buffering data frames to be transmitted in a transmission buffer;
• monitoring the actual user data rate on the terminal interface,
• monitoring fill level of the transmission buffer,
• transmitting user data in data frames via specific one or ones of said allocated subchannels, the number of said specific ones of said allocated subchannels depending on the actual user data rate and the fill level of the buffer,
• reducing the transfer rate to as low a level as possible on the remaining one or ones of said allocated subchannels which do not belong to said specific ones of said allocated subchannels, if any.

A digital mobile communication system comprising

• a transmitting party having a transmission buffer;
• a receiving party;
• a multichannel non-transparent data connection between the two parties, said multichannel data connection having parallel subchannels allocated on a radio interface, the number of said allocated subchannels being determined by a specific maximum transfer capacity;
• a communication protocol in which data is transferred over said multichannel data connection in data frames so that defective data frames received are retransmitted, said transmission buffer buffering the data frames to be transmitted
• the transmitting party being arranged to monitor the actual user data rate and the fill level of the transmission buffer,
• the transmitting party being arranged to transmit user data in data frames via specific one or ones of said allocated subchannels, the number of said specific ones of said allocated subchannels depending on the actual user data rate and the fill level of the buffer, and to interrupt transmission on the remaining one or ones of said allocated subchannels, if any.

A digital mobile communication system comprising

• a transmitting party having a transmission buffer;
• a receiving party;
• a multichannel non-transparent data connection between the two parties, said multichannel data connection having parallel subchannels allocated on a radio interface, the number of said allocated subchannels being determined by a specific maximum transfer capacity;
• a communication protocol in which data is transferred over said multichannel data connection in data frames so that defective data frames received are retransmitted, said transmission buffer buffering the data frames to be transmitted,
• the transmitting party being arranged to monitor the actual user data rate and the fill level of the transmission buffer,
• the transmitting party being arranged to transmit user data in data frames via specific one or ones of said allocated subchannels, the number of said specific ones of said allocated subchannels depending on the actual user data rate and the fill level of the buffer, and to activate discontinuous transmission on the remaining one or ones of said allocated subchannels, if any.

A digital mobile communication system comprising

• a transmitting party having a transmission buffer;
• a receiving party;
• a multichannel non-transparent data connection between the two parties, said multichannel data connection having parallel subchannels allocated on a radio interface, the number of said allocated subchannels being determined by a specific maximum transfer capacity;
• a communication protocol in which data is transferred over said multichannel data connection in data frames so that defective data frames received are retransmitted, said transmission buffer buffering the data frames to be transmitted,
• the transmitting party being arranged to monitor the actual user data rate and the fill level of the transmission buffer,
• the transmitting party being arranged to transmit user data in data frames via specific one or ones of said allocated subchannels, the number of said specific ones of said allocated subchannels depending on the actual user data rate and the fill level of the buffer, and to reduce the transfer rate to as low a level as possible on the remaining one or ones of said allocated subchannels, if any.