Radio receiver with multi-stage equalization
AssigneeNokia Solutions and Networks Oy
InventorsMikko Johannes HONKALA, Dani Johannes KORPI, Janne Matti Juhani HUTTUNEN
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Abstract
Various example embodiments may relate to relate radio receivers. A radio receiver may receive data and reference signals; determine a channel estimate for the received data based on the reference signals; and equalize the received data with a sequential plurality of equalization stages, one or more of the sequential plurality of equalization stages comprising: an equalizer configured to determine an equalized representation of input data based a previous channel estimate, and a channel estimator neural network configured to determine at least a refined channel estimate for a subsequent equalization stage based on the previous channel estimate and the input data.
Claims22
A radio receiver, comprising:
- at least one processor;
- and at least one memory storing instructions that, when executed by the at least one processor, cause the radio receiver at least to:
- receive data and reference signals;
- determine a channel estimate for the received data based on the reference signals;
- and
- equalize the received data with a sequential plurality of equalization stages, one or more of the sequential plurality of equalization stages comprising:
- an equalizer configured to determine an equalized representation of input data based a previous channel estimate, and
- a neural network configured to determine at least a refined channel estimate for a subsequent equalization stage based on the previous channel estimate and the input data.
A method, comprising:
- receiving data and reference signals;
- determining a channel estimate for the received data based on the reference signals;
- and
- equalizing the received data with a sequential plurality of equalization stages, one or more of the sequential plurality of equalization stages comprising:
- determining, by an equalizer, an equalized representation of input data based a previous channel estimate, and
- determining, by a neural network, at least a refined channel estimate for a subsequent equalization stage based on the previous channel estimate and the input data.
20-32. (canceled)
A computer program comprising instructions for causing an apparatus to perform at least the following:
- receiving data and reference signals;
- determining a channel estimate for the received data based on the reference signals;
- and
- equalizing the received data with a sequential plurality of equalization stages, one or more of the sequential plurality of equalization stages comprising:
- determining an equalized representation of input data based a previous channel estimate, and
- determining, by a neural network, at least a refined channel estimate for a subsequent equalization stage based on the previous channel estimate and the input data.
(canceled)
Dependencies are inferred from the claim text.