Method for data transmission to a receiving station according to the temporal course of the pilot signals
A data transmission is sent from an emitting station to a receiving station in a radio communication system via an antenna device in the emitting station that produces an electromagnetic field with a temporally changing field intensity at the site of the receiving station. An emission moment for data transmission is defined according to the temporal course of the field intensity at the site of the receiving station, data being transmitted to the receiving station at the emission moment.
1 - 10 . (canceled)
11 . A method for data transmission from a sending station to a receiving station in a radio communication system, comprising:
creating an electromagnetic field, using an antenna device at the sending station, with a field strength which varies over time at a position of the receiving station; and
defining, at the sending station, a send time for a data transmission to the receiving station depending on a temporal course of the field strength at the position of the receiving station.
12 . A method in accordance with claim 11 , further comprising:
receiving at the sending station the receiving station before said defining at least one item of information; and
estimating the temporal course of the field strength based on the at least one item of information.
13 . A method in accordance with claim 12 , wherein the at least one item of information indicates a quality of a signal received by the receiving station at at least two points in time.
14 . A method in accordance with claim 13 , wherein the antenna device at the sending station generating the field strength which changes over time at the position of the receiving station includes at least two spatially separated antennas, each of which emits one electromagnetic wave.
15 . A method in accordance with claim 14 , wherein the at least two spatially separated antennas generate electromagnetic waves with different frequencies.
16 . A method in accordance with claim 15 , wherein the different frequencies of the electromagnetic waves differ by between 5 and 50 Hertz.
17 . A method in accordance with claim 16 , wherein a relative phase angle of the electromagnetic waves changes over time.
18 . A method in accordance with claim 17 , wherein the data to be transmitted is modulated onto the electromagnetic waves.
19 . A method in accordance with claim 18 , wherein the radio communication system is a mobile radio system.
20 . Sending station for transmitting data to a receiving station, comprising:
an antenna device generating an electromagnetic field with a field strength which changes over time at a position of the receiving station;
a control unit defining a send time for a data transmission depending on a temporal course of the field strength at the position of the receiving station; and
means for transmitting the data to the receiving station at the send time.