초록 ▼

A digital mobile communication system has a high-speed non-transparent data connection between a transmitting and a receiving party. For the data connection, parallel subchannels, corresponding in number to the nominal data transfer rate, have been allocated on the radio interface. A radio link prot

A digital mobile communication system has a high-speed non-transparent data connection between a transmitting and a receiving party. For the data connection, parallel subchannels, corresponding in number to the nominal data transfer rate, have been allocated on the radio interface. A radio link protocol is responsible for transmitting data over the radio interface, and for acknowledging correct data frames and for retransmitting defective data frames. A transmission buffer buffers the data frames to be transmitted and stores the data frames transmitted until it receives an acknowledgement of successful reception. In order to reduce interference and power consumption, user data is transmitted by using as many of the allocated subchannels as required by the actual user data rate at any one time. On the other allocated subchannels, transmission is interrupted or discontinuous transmission is applied.

대표청구항 ▼

[ We claim:] [10.] A digital mobile communication system comprisinga 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,

[ We claim:] [10.] A digital mobile communication system comprisinga 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 transmittedthe 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.