Antenna controller for antenna with linearized power amplifiers
An antenna controller for an antenna is configured to request and receive status information comprising power amplifier data of at least two adjustable power amplifiers. The antenna controller is configured to determine at least one target setting for the at least two adjustable power amplifiers based on the received power amplifier data, and to send the at least one target setting for the at least two adjustable power amplifiers. Hereby it is made possible for an antenna controller to set an overall target for multiple adjustable power amplifiers of the antenna. This in turn makes it possible to make the settings for the adjustable power amplifiers such that the transmission signal becomes linearized by a shared digital pre-distorter when transmitting using the multiple adjustable power amplifiers of the antenna. A Radio Frequency Integrated Circuit controller for an antenna subarray is configured to control at least one adjustable power amplifier.
1. An antenna controller for an antenna, the antenna controller being configured to:
receive status information comprising power amplifier data of at least two adjustable power amplifiers,
determine at least one target setting for the at least two adjustable power amplifiers to equalize transfer functions of the at least two adjustable power amplifiers based on the received power amplifier data, and
send the at least one target setting for the at least two adjustable power amplifiers-.
2. The antenna controller according to claim 1 , wherein the antenna controller is configured to request the status information of the at least two adjustable power amplifiers of the antenna.
3. The antenna controller according to claim 1 , wherein the antenna controller is configured to receive a target set indication that the at least one target setting has been implemented for the at least two adjustable power amplifiers.
4. The antenna controller according to claim 3 , wherein the antenna controller is configured to receive the target set indication that the at least one target setting has been implemented for the at least two adjustable power amplifiers of at least one subarray.
5. The antenna controller according to claim 1 , wherein the power amplifier data comprises at least one of:
an absolute parameter, or
a relative parameter,
for each adjustable power amplifier.
6. A method in an antenna controller for controlling adjustable power amplifiers of an antenna, comprising:
receiving status information comprising power amplifier data of the at least two adjustable power amplifiers;
determining at least one target setting for the at least two adjustable power amplifiers to equalize transfer functions of the at least two adjustable power amplifiers based on the received power amplifier data; and
sending the at least one target setting for the at least two adjustable power amplifiers.
7. The method according to claim 6 , further comprising requesting the status information of the at least two adjustable power amplifiers of the antenna.
8. The method according to claim 6 , further comprising receiving a target set indication that the at least one target setting has been implemented for the at least two adjustable power amplifiers.
9. The method according to claim 8 , wherein the receiving the target set indication that the at least one target setting has been implemented for the at least two adjustable power amplifier comprises receiving the target set indication that the at least one target setting has been implemented for the at least two adjustable power amplifiers of at least one subarray.
10. The method according to claim 6 , wherein the power amplifier data comprises at least one of:
an absolute parameter, or
a relative parameter,
for each adjustable power amplifier.