Signal dimension reduction using a non-linear transformation
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsRoy Timo, Miguel Berg, Niklas Wernersson, Zhao Wang
Life of this patent
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Abstract
A method performed by a radio unit for handling a number of received radio signals over an array of antennas comprised in the radio unit. The radio unit transforms the number of received radio signals into a number of sequences of complex symbols. The radio unit further filters the number of sequences of complex symbols by inputting the number of sequences of complex symbols into a trained computational model comprising an alternating sequence of linear and nonlinear functions and thereby obtaining a reduced number of sequences. The radio unit further transmits the reduced number of sequences to a baseband unit over a front-haul link.
Claims18
A method performed by a radio unit for handling a number of received radio signals over an array of antennas comprised in the radio unit, the method comprising:
- transforming the number of received radio signals into a number of sequences of complex symbols;
- filtering the number of sequences of complex symbols by inputting the number of sequences of complex symbols into a trained computational model comprising an alternating sequence of linear and nonlinear functions and thereby obtaining a reduced number of sequences;
- and
- transmitting the reduced number of sequences to a baseband unit over a front-haul link.
A method performed by a baseband unit for handling sequences from a radio unit received over a front-haul link, the method comprising:
- receiving a reduced number of sequences from the radio unit;
- decompressing the reduced number of sequences by inputting the reduced number of sequences into a trained computational model comprising an alternating sequence of linear and nonlinear functions and thereby obtaining a number of sequences of complex symbols;
- and
- processing the number of sequences of complex symbols for decoding signals received over an array of antennas of the radio unit.
A radio unit for handling a number of received radio signals over an array of antennas comprised in the radio unit, wherein the radio unit comprising:
- at least one processor;
- and
- a memory comprising instructions which, when executed by the at least one processor, cause the radio unit to:
- transform the number of received radio signals into a number of sequences of complex symbols;
- filter the number of sequences of complex symbols by inputting the number of sequences of complex symbols into a trained computational model comprising an alternating sequence of linear and nonlinear functions and thereby obtaining a reduced number of sequences;
- and
- transmit the reduced number of sequences to a baseband unit over a front-haul link.
A baseband unit for handling sequences from a radio unit received over a front-haul link, wherein the baseband unit comprising:
- at least one processor;
- and
- a memory comprising instructions which, when executed by the at least one processor, cause the baseband unit to:
- receive a reduced number of sequences from the radio unit;
- decompress the reduced number of sequences by inputting the reduced number of sequences into a trained computational model comprising an alternating sequence of linear and nonlinear functions and thereby obtaining a number of sequences of complex symbols;
- and
- process the number of sequences of complex symbols for decoding signals received over an array of antennas of the radio unit.
Dependencies are inferred from the claim text.