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Work item:
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Y.QKDNe-DCS
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Subject/title:
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Framework of quantum key distribution network enhancement to support deterministic communication services
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Status:
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Under study
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Approval process:
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TAP
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Type of work item:
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Recommendation
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Version:
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New
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Equivalent number:
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-
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Timing:
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2028-Q2 (Medium priority)
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Liaison:
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ITU-T SG11, SG17, ETSI ISG-QKD, IEEE 802.1 TSN, IEEE P1913
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Supporting members:
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University of Science and Technology Beijing, China; CAS Quantum Network, Co., China; Beijing University of Posts and Telecommunications, China
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Summary:
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Deterministic communication is essential for next-generation networks like IMT-2030 and Industry 4.0, requiring reliable transmission with bounded latency and ultra-low jitter. However, traditional security protocols introduce unpredictable processing overhead and "security-induced jitter," which can disrupt precise scheduling in deterministic networks. Quantum Key Distribution Networks (QKDN) provide a transformative solution by enabling physically out-of-band symmetric keys and efficient XOR stream encryption with minimal latency impact
While ITU-T Y.3825 provides an application-level integration framework for QKDN and Time-Sensitive Networking (TSN), the internal functional architecture remains "best-effort," lacking mechanisms to synchronize key supply with deterministic service cycles. This Recommendation specifies a functional enhancement framework to evolve QKDN into a "deterministic-aware" infrastructure. It defines architectural requirements, cross-layer coordination interfaces, and demand prediction mechanisms necessary to achieve "zero-wait" key availability. By minimizing security-induced jitter, this work provides a top-level architectural foundation for ensuring end-to-end security and determinism in time-sensitive vertical industries.
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Comment:
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-
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Reference(s):
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Historic references:
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Contact(s):
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First registration in the WP:
2026-07-21 15:40:29
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Last update:
2026-07-23 15:33:17
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