METHOD FOR TRANSMITTING DATA BETWEEN A USER EQUIPMENT AND A BASE STATION IN A WIRELESS RADIO NETWORK

摘要

The present invention relates to a method for transmitting data between a user equipment (15) and a base station (11) in a wireless radio network (10). The user equipment (15) comprises at least a first antenna (16) and a second antenna (17). The base station (11) comprises a plurality of antennas (12) for transmitting radio frequency signals between the base station (11) and the user equipment (15). According to the method, a first training signal is transmitted from the user equipment (15) to the base station (11) via the first antenna (16) at a first time period. Furthermore, a second training signal is transmitted from the user equipment (15) to the base station (11) via the second antenna (17) at a second time period different to the first time period. For each antenna (12) of the base station (11) a corresponding first configuration parameter is determined based on the first training signal and a corresponding second configuration parameter is determined based on the second training signal. Furthermore, first downlink data (DL1) is transmitted from the base station (11) to the user equipment using the first configuration parameters and simultaneously second downlink data (DL2) are transmitted from the base station (11) to the user equipment (15) using the second configuration parameters. Then, a first signal quality parameter of the first downlink data (DL1) is determined and a second signal quality parameter of the second downlink data (DL2) is determined. Based on the determined first and second signal quality parameters, an antenna of the first and second antennas (16, 17) of the user equipment (15) is selected for transmission of uplink data (UL1, UL2) from the user equipment (15) to the base station (11).

主权项

1. A method for transmitting data between a user equipment and a base station in a wireless radio network, wherein the user equipment comprises at least a first antenna and a second antenna for transmitting radio frequency signals between the user equipment and the base station, and wherein the base station comprises a plurality of antennas for transmitting radio frequency signals between the base station and the user equipment, the method comprising:
transmitting a first training signal from the user equipment to the base station via the first antenna at a first time period, determining for each antenna of a subset of the plurality of the antennas of the base station a corresponding first configuration parameter based on the first training signal received at the corresponding antenna, transmitting a second training signal from the user equipment to the base station via the second antenna at a second time period different to the first time period, determining for each antenna of the subset of the plurality of the antennas of the base station a corresponding second configuration parameter based on the second training signal received at the corresponding antenna, transmitting first downlink data from the base station to the user equipment using the determined first configuration parameters for the antennas of the base station, and simultaneously transmitting second downlink data from the base station to the user equipment using the determined second configuration parameters for the antennas of the base station, determining a first signal quality parameter of the first downlink data received at the user equipment, determining a second signal quality parameter of the second downlink data received at the user equipment, and selecting, based on the determined first and second signal quality parameters, an antenna of the first and second antennas of the user equipment for a transmission of uplink data from the user equipment to the base station.