eSIM IoT Architecture

GSMA SGP.32 — eIM, IPA, and New Interfaces for Constrained Devices

Operator SM-DP+ SM-DS eIM eSIM IoT Remote Manager PSMO • eCO • Fleet Control ES2+ ES9+' ES12 ES11' IoT Device IPA (IPAd) IoT Profile Assistant Proxy • Discovery • Notify eUICC ISD-R • ISD-P × N Verified eUICC Packages ESipa eIM Package ESep (logical, signed eUICC Packages) ES11 ES8+ (via IPA) ES10a/b Transport Options HTTP/TLS • CoAP/DTLS • MQTT • Non-IP (NIDD) • Proprietary IPA Capabilities: minimizeEsipaBytes • Direct/Indirect Download • Protocol Negotiation What's New in SGP.32 (vs Consumer SGP.22) • eIM — Remote fleet manager replaces end-user interaction • ESipa — eIM-to-IPA interface with signed eUICC Packages for PSMO/eCO • ESep — Logical end-to-end signing between eIM and eUICC • ES9+' — eIM-to-SM-DP+ (Indirect Download) • ES11' — eIM-to-SM-DS (offloaded SM-DS polling) • No ES10c — No local UI-driven profile management

Based on GSMA SGP.32 v1.3 — Sections 2.1-2.3 and SGP.31 v1.3 Section 4