AAP Recommendation

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Q.4169: Protocols for Cq interfaces for quantum key distribution networks

Study Group
11

Study Period
2025-2028

Consent Date
2026-07-22

Approval Date

Provisional Name
Q.QKDN_Cq

Input used for Consent
SG11-TD844-R1/GEN (2024-05) (A.1 TD)
SG11-TD1245/GEN (2026-07)

Status
C

IPR
Site

This Recommendation specifies key generation control protocols for Cq interfaces for quantum key distribution networks. It specifies signalling procedures, messages and parameters at Cq interfaces. The Cq reference point is defined in [ITU-T Y.3802] for the QKDN controller to communicate control information with the QKD module.

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