Method for operating a base station in a wireless radio network

Abstract

The present invention relates to a method for operating a base station ( 11 ) in a wireless radio network ( 10 ). The base station ( 11 ) comprises a plurality of antennas ( 12 ) for transmitting radio frequency signals between the base station ( 11 ) and a user equipment (UE 1 , UE 2 , UE 3 ). According to the method, a transmission slot ( 47 ) is provided for receiving at each antenna ( 12 ) of a subset of the plurality of antennas ( 12 ) a training signal sent from the user equipment (UE 1 , UE 2 , UE 3 ). For each antenna ( 12 ) a corresponding configuration parameter is determined based on the training signal received at the corresponding antenna ( 12 ) and payload information blocks ( 36, 37 ) to be transmitted between the base station ( 11 ) and the user equipment (UE 1 , UE 2 , UE 3 ) are transmitted using the determined configuration parameters for the antennas ( 12 ). A deterioration parameter indicating a deterioration of a transmission between the base station ( 11 ) and the user equipment (UE 1 , UE 2 , UE 3 ) due to a change in the transmission requiring adaption of the configuration parameters is determined. Based on the deterioration parameter, a timing parameter is determined for controlling when a further transmission slot ( 47 ) is to be provided for receiving at each antenna ( 12 ) a next training signal sent form the user equipment (UE 1 , UE 2 , UE 3 ).

1 . A method for operating a base station in a wireless radio network, the base station comprising a plurality of antennas for transmitting radio frequency signals between the base station and a user equipment, the method comprising:
 providing a transmission slot for receiving at each antenna of a subset of the plurality of antennas a training signal sent from the user equipment, wherein for each antenna of the subset a corresponding configuration parameter is determined based on the training signal received at the corresponding antenna, and wherein payload information blocks to be transmitted between the base station and the user equipment are transmitted using the determined configuration parameters for the antennas ( 12 ),   determining a deterioration parameter indicating a deterioration of a transmission between the base station and the user equipment due to a change in the transmission requiring adaption of the configuration parameters, and   determining, based on the deterioration parameter, a timing parameter for controlling when a further transmission slot is to be provided for receiving at each antenna of the subset of the plurality of antennas a next training signal sent from the user equipment.   
     
     
         2 . The method according to  claim 1 , wherein
 determining the deterioration parameter comprises determining a relative movement between the base station and the user equipment.   
     
     
         3 . The method according to  claim 1 , wherein determining the deterioration parameter comprises determining a spatial information of the base station. 
     
     
         4 . The method according to  claim 3 , wherein determining the spatial information of the base station comprises at least one of a group consisting of:
 determining a location of the base station,   determining a speed with which the base station is moving,   determining an acceleration with which the base station is accelerated, and   determining a direction of a movement of the base station.   
     
     
         5 . The method according to  claim 4 , wherein determining the location of the base station comprises at least one of a group of:
 determining a stationary position defined for the base station, and   determining a current position of the base station.   
     
     
         6 . The method according to  claim 1 , wherein determining the deterioration parameter comprises determining a spatial information of the user equipment. 
     
     
         7 . The method according to  claim 6 , wherein determining the spatial information of the user equipment comprises at least one of a group consisting of:
 determining a location of the user equipment,   determining a speed with which the user equipment is moving,   determining an acceleration with which the user equipment is accelerated, and   determining a direction of a movement of the user equipment.   
     
     
         8 . The method according to  claim 7 , wherein determining the location of the user equipment comprises at least one of a group of:
 determining a stationary position defined for the user equipment, and   determining a current position of the user equipment.   
     
     
         9 . The method according to  claim 1 , wherein determining the deterioration parameter comprises at least one of a group consisting of:
 determining a bit error rate of a transmission between the base station and the user equipment using the determined configuration parameters for the antennas,   determining a noise figure a transmission between the base station and the user equipment using the determined configuration parameters for the antennas,   determining a signal level of a transmission between the base station and the user equipment using the determined configuration parameters for the antennas, and   determining a change in a footprint matrix of the user equipment in the determined configuration parameters for the antennas.   
     
     
         10 . The method according to  claim 1 , wherein determining the timing parameter comprises determining, based on the deterioration parameter, a next point in time at which the further transmission slot for receiving the next training signal is to be provided. 
     
     
         11 . The method according to  claim 1 , wherein determining the timing parameter comprises determining, based on the deterioration parameter, a training sequence rate value controlling a rate at which further transmission slots are to be provided for receiving at each antenna of the subset of the plurality of antennas next training signals sent from the user equipment. 
     
     
         12 . The method according to  claim 1 , wherein the configuration parameter comprises at least one of a group consisting of:
 an amplitude information,   a phase information,   a parameter pair comprising an amplitude information and an associated phase information,   a plurality of the parameter pairs, and   a signal intensity.   
     
     
         13 . The method according to  claim 1 , wherein the plurality of antennas of the base station is configured for transmitting radio frequency signals between the base station and a plurality of user equipments, the method comprising:
 providing for each user equipment of the plurality of user equipments a corresponding transmission slot for receiving at each antenna of a subset of the plurality of antennas a training signal sent from the corresponding user equipment, wherein for each antenna of the subset a corresponding configuration parameter is determined based on the training signal received at the corresponding antenna, and wherein payload information blocks to be transmitted between the base station and the corresponding user equipment are transmitted using the determined corresponding configuration parameters for the antennas,   determining for each user equipment a corresponding deterioration parameter indicating a deterioration of a transmission between the base station and the corresponding user equipment due to a change in the transmission requiring adaption of the configuration parameters, and   determining for each user equipment, based on the corresponding deterioration parameter, a corresponding timing parameter for controlling when a further transmission slot is to be provided for receiving at each antenna of the subset of the plurality of antennas a next training signal sent from the corresponding user equipment.   
     
     
         14 . A base station for a wireless radio network, comprising:
 a plurality of antennas for transmitting radio frequency signals between the base station and a user equipment, and   a processing device configured to   provide a transmission slot for receiving at each antenna of a subset of the plurality of antennas a training signal sent from the user equipment, wherein for each antenna of the subset a corresponding configuration parameter is determined based on the training signal received at the corresponding antenna, and wherein payload information blocks to be transmitted between the base station and the user equipment are transmitted using the determined configuration parameters for the antennas,   determine a deterioration parameter indicating a deterioration of a transmission between the base station and the user equipment due to a change in the transmission requiring adaption of the configuration parameters, and determine, based on the deterioration parameter, a timing parameter for controlling when a further transmission slot is to be provided for receiving at each antenna of the subset of the plurality of antennas a next training signal sent from the user equipment.   
     
     
         15 . (canceled) 
     
     
         16 . A user equipment for a wireless radio network, wherein the user equipment is configured for transmission of radio frequency signals between the user equipment and the base station according to  claim 14 .