Rel-12 Rel-15 Rel-16 Rel-17 Rel-18 Rel-19 Rel-20 Compare
Compare any two indexed specifications Identity, status and ownership are whole-spec metadata. Presence, version, Work Item and CR fields are scoped to Rel-12. Atlas system-domain, abstraction and topic fields are release-neutral orientation metadata and remain explicitly separate.
live detail comparison Left specification 22.104 · Cyber-physical control service requirements 22.261 · 5G system service requirements 23.228 · IMS architecture 23.256 · UAS connectivity, identification and tracking 23.273 · 5GS location services 23.288 · Network data analytics (NWDAF) 23.401 · EPS architecture 23.501 · 5GS architecture 23.502 · 5GS procedures 23.503 · 5GS policy and charging framework 24.229 · IMS SIP/SDP signalling 24.301 · EPS NAS 24.501 · 5GS NAS 26.114 · IMS multimedia telephony media handling 28.532 · Generic management services 28.541 · 5G network resource model 32.240 · Charging architecture and principles 29.274 · GTPv2-C 29.281 · GTP-U 29.500 · 5GS service-based architecture realization 29.501 · Services definition principles 29.502 · Session Management Services 29.510 · NRF services 29.512 · Session management policy control service 29.514 · Policy authorization service 29.518 · Access and Mobility Management Services 29.525 · UE policy control service 29.571 · Common SBI data types 31.102 · USIM application 33.203 · IP service access security 33.401 · EPS security architecture 33.501 · 5GS security architecture and procedures 36.300 · E-UTRAN overall description 36.331 · LTE RRC 36.413 · S1AP 37.340 · LTE/NR multi-connectivity 37.355 · LTE Positioning Protocol (LPP) 38.104 · NR base-station radio transmission/reception 38.211 · NR physical channels and modulation 38.214 · NR physical-layer procedures for data 38.300 · NR/NG-RAN overall description 38.321 · NR MAC 38.322 · NR RLC 38.323 · NR PDCP 38.331 · NR RRC 38.401 · NG-RAN architecture 38.413 · NGAP 38.423 · XnAP 38.455 · NRPPa 38.473 · F1AP 38.521-1 · NR UE RF conformance 38.533 · NR UE RRM conformance ⇄ Right specification 22.104 · Cyber-physical control service requirements 22.261 · 5G system service requirements 23.228 · IMS architecture 23.256 · UAS connectivity, identification and tracking 23.273 · 5GS location services 23.288 · Network data analytics (NWDAF) 23.401 · EPS architecture 23.501 · 5GS architecture 23.502 · 5GS procedures 23.503 · 5GS policy and charging framework 24.229 · IMS SIP/SDP signalling 24.301 · EPS NAS 24.501 · 5GS NAS 26.114 · IMS multimedia telephony media handling 28.532 · Generic management services 28.541 · 5G network resource model 32.240 · Charging architecture and principles 29.274 · GTPv2-C 29.281 · GTP-U 29.500 · 5GS service-based architecture realization 29.501 · Services definition principles 29.502 · Session Management Services 29.510 · NRF services 29.512 · Session management policy control service 29.514 · Policy authorization service 29.518 · Access and Mobility Management Services 29.525 · UE policy control service 29.571 · Common SBI data types 31.102 · USIM application 33.203 · IP service access security 33.401 · EPS security architecture 33.501 · 5GS security architecture and procedures 36.300 · E-UTRAN overall description 36.331 · LTE RRC 36.413 · S1AP 37.340 · LTE/NR multi-connectivity 37.355 · LTE Positioning Protocol (LPP) 38.104 · NR base-station radio transmission/reception 38.211 · NR physical channels and modulation 38.214 · NR physical-layer procedures for data 38.300 · NR/NG-RAN overall description 38.321 · NR MAC 38.322 · NR RLC 38.323 · NR PDCP 38.331 · NR RRC 38.401 · NG-RAN architecture 38.413 · NGAP 38.423 · XnAP 38.455 · NRPPa 38.473 · F1AP 38.521-1 · NR UE RF conformance 38.533 · NR UE RRM conformance
Official / indexed metadata official + parsed
Title LTE Positioning Protocol (LPP)
Type —
Status —
Primary group RAN2
Secondary groups —
Initial release —
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Atlas orientation curated / inferred
System domain RAN
Abstraction Stage 3
Topics Positioning
Series 37
Official / indexed metadata official + parsed
Title 5GS procedures
Type —
Status —
Primary group SA2
Secondary groups —
Initial release —
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Atlas orientation curated / inferred
System domain Core
Abstraction Stage 2
Topics Registration, PDU Session, Mobility, NTN
Series 23 Trust model
Every relationship has provenance ✓ official ◇ parsed ● curated ◌ inferred
Official = 3GPP metadata. Parsed = deterministic extraction. Curated = reviewed Atlas classification. Inferred = machine suggestion requiring review.
Reviewed semantic coverage ↗