Patent ID: 11924016
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A method for receiving a data stream by a receiving device, said data stream comprising m data sub-streams, m ≥4, comprising:
receiving a symbol stream including the data stream from a transmitting device, the symbol stream including symbols of a multilevel modulation comprising m levels defining 2m different symbols in a complex plane,
demodulating the symbols of the symbol stream in order to produce m polar-encoded data sub-streams, by applying an inverse function of a predetermined labeling function Z which bijectively associates a symbol to a set c1, . . . , cm of m bits from respective polar-encoded data sub-streams,
decoding successively the m polar-encoded data sub-streams such as to produce m data sub-streams, by applying respective polar-code decoders,
wherein the 2m symbols of the multilevel modulation used are distributed in the complex plane such that they are regularly spaced along the real axis and the complex axis by a spacing factor K,
wherein the predetermined labeling function Z is such that:

Φ(Z)<1.7m×(0.0425×m−0.06), expression in which:, Φ
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