Zigzag decoding of upstream-processed signals from independent receiver subarrays

A network node operating in a communication network, the network node comprising:

• processing circuitry;
• and
• memory coupled to the processing circuitry and having instructions stored therein that are executable by the processing circuitry to cause the network node to perform operations, the operations comprising:
• receiving, by a first decoder of the network node, a first upstream-processed signal associated with an original signal;
• receiving, by a second decoder of the network node, a second upstream-processed signal, associated with the original signal;
• determining, by the first decoder of the network node, a first downstream-processed signal based on the first upstream-processed signal;
• responsive to determining the first downstream-processed signal, outputting, by the first decoder, the first downstream-processed signal;
• responsive to the first decoder outputting the first downstream-processed signal, determining, by the second decoder of the network node, a second downstream-processed signal based on the second upstream-processed signal and the first downstream-processed signal;
• responsive to determining the second downstream-processed signal, outputting, by the second decoder, the second downstream-processed signal;
• determining a decoded received signal based on outputs from the first decoder and the second decoder,
• responsive to the second decoder outputting the second downstream-processed signal, determining, by the first decoder, a first revised downstream-processed signal based on the first downstream-processed signal and second downstream-processed signal;
• and
• responsive to determining the first revised downstream-processed signal, outputting, by the first decoder, the first revised downstream-processed signal.

A computer program product comprising a non-transitory computer-readable storage medium, the computer-readable storage medium having computer-executable instructions configured to cause a wireless device to perform operations when the computer-executable instructions are executed on a processor comprised in the wireless device, the operations comprising:

• receiving, by a first decoder of the network node, a first upstream-processed signal associated with an original signal;
• receiving, by a second decoder of the network node, a second upstream-processed signal, associated with the original signal;
• determining, by the first decoder of the network node, a first downstream-processed signal based on the first upstream-processed signal;
• responsive to determining the first downstream-processed signal, outputting, by the first decoder, the first downstream-processed signal;
• responsive to the first decoder outputting the first downstream-processed signal, determining, by the second decoder of the network node, a second downstream-processed signal based on the second upstream-processed signal and the first downstream-processed signal;
• responsive to determining the second downstream-processed signal, outputting, by the second decoder, the second downstream-processed signal;
• determining a decoded received signal based on outputs from the first decoder and the second decoder,
• responsive to the second decoder outputting the second downstream-processed signal, determining, by the first decoder, a first revised downstream-processed signal based on the first downstream-processed signal and second downstream-processed signal;
• and
• responsive to determining the first revised downstream-processed signal, outputting, by the first decoder, the first revised downstream-processed signal.