ITU-T G.8265.1
E6438
ITU-T G.8265.1 is an international telecommunications standard that specifies the use of packet-based timing protocols over IP networks to distribute frequency synchronization, particularly for mobile and packet-based services.
All labels observed (3)
| Label | Occurrences |
|---|---|
| ITU-T G.8265.1 canonical | 1 |
| ITU-T Recommendation G.8265 | 1 |
| ITU-T Recommendation G.8265.1 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T73065 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: ITU-T G.8265.1 Context triple: [IEEE 1588 Precision Time Protocol standard, relatedStandard, ITU-T G.8265.1]
-
A.
IEEE 802.1CM fronthaul standard
The IEEE 802.1CM fronthaul standard is a Time-Sensitive Networking (TSN) specification that defines Ethernet-based transport requirements and profiles for carrying mobile fronthaul traffic in 4G/5G radio access networks.
-
B.
IEEE 802.1Qbv time‑sensitive networking standard
The IEEE 802.1Qbv time‑sensitive networking standard defines enhancements to Ethernet scheduling that enable deterministic, low-latency communication for time-critical applications such as industrial automation and automotive networks.
-
C.
IEEE 802.1AS timing and synchronization standard
The IEEE 802.1AS timing and synchronization standard defines precise time synchronization mechanisms for time-sensitive networking over Ethernet, enabling coordinated, low-latency communication in applications such as industrial automation and audio/video transport.
-
D.
IEEE 1588 Precision Time Protocol standard
The IEEE 1588 Precision Time Protocol standard defines a method for highly accurate time synchronization over packet-based networks, widely used in industrial automation, telecommunications, and power systems.
-
E.
RFC 9111
RFC 9111 is an IETF specification that defines HTTP caching semantics, detailing how responses can be stored, reused, and validated to improve web performance and efficiency.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: ITU-T G.8265.1 Target entity description: ITU-T G.8265.1 is an international telecommunications standard that specifies the use of packet-based timing protocols over IP networks to distribute frequency synchronization, particularly for mobile and packet-based services.
-
A.
IEEE 802.1CM fronthaul standard
The IEEE 802.1CM fronthaul standard is a Time-Sensitive Networking (TSN) specification that defines Ethernet-based transport requirements and profiles for carrying mobile fronthaul traffic in 4G/5G radio access networks.
-
B.
IEEE 802.1Qbv time‑sensitive networking standard
The IEEE 802.1Qbv time‑sensitive networking standard defines enhancements to Ethernet scheduling that enable deterministic, low-latency communication for time-critical applications such as industrial automation and automotive networks.
-
C.
IEEE 802.1AS timing and synchronization standard
The IEEE 802.1AS timing and synchronization standard defines precise time synchronization mechanisms for time-sensitive networking over Ethernet, enabling coordinated, low-latency communication in applications such as industrial automation and audio/video transport.
-
D.
IEEE 1588 Precision Time Protocol standard
The IEEE 1588 Precision Time Protocol standard defines a method for highly accurate time synchronization over packet-based networks, widely used in industrial automation, telecommunications, and power systems.
-
E.
RFC 9111
RFC 9111 is an IETF specification that defines HTTP caching semantics, detailing how responses can be stored, reused, and validated to improve web performance and efficiency.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
ITU-T Recommendation
ⓘ
telecommunications standard ⓘ |
| appliesTo |
IP networks
ⓘ
packet-switched networks ⓘ |
| belongsToSeries | G.826x ⓘ |
| category |
network synchronization
ⓘ
time and frequency distribution ⓘ |
| defines |
frequency synchronization profiles
ⓘ
packet-based timing profiles ⓘ telecom boundary clocks ⓘ telecom grandmaster clocks ⓘ telecom time slave clocks ⓘ |
| distinguishedFrom | ITU-T G.8275.1 time and phase profile ⓘ |
| focusesOn |
frequency synchronization over packet networks
ⓘ
packet-based time and frequency distribution ⓘ |
| objective |
enable frequency synchronization over packet networks comparable to TDM-based methods
ⓘ
ensure interoperability of PTP-based frequency synchronization equipment ⓘ |
| publishedBy |
ITU-T Study Group 15
ⓘ
International Telecommunication Union ⓘ |
| relatedTo |
IEEE 1588 Precision Time Protocol standard
ⓘ
surface form:
IEEE 1588
ITU-T G.8261 ⓘ ITU-T G.8262 ⓘ ITU-T G.8275.1 ⓘ |
| scope | frequency synchronization only ⓘ |
| sector |
ITU Telecommunication Standardization Sector
ⓘ
surface form:
ITU-T
|
| specifies |
PTP telecom profile for frequency synchronization
ⓘ
asymmetry considerations for packet timing ⓘ clock types and roles in PTP telecom profile ⓘ network limits for packet-based frequency synchronization ⓘ packet selection and filtering requirements ⓘ performance objectives for frequency transfer ⓘ requirements for packet-based frequency distribution ⓘ unicast PTP operation over IP networks ⓘ |
| standardType | frequency synchronization profile for packet networks ⓘ |
| supports | unicast PTP message delivery ⓘ |
| supportsService |
carrier Ethernet synchronization
ⓘ
mobile backhaul ⓘ mobile networks ⓘ packet-based services ⓘ |
| transportLayer | UDP over IP ⓘ |
| usedBy |
equipment vendors
ⓘ
mobile network operators ⓘ telecommunications operators ⓘ |
| usesProtocol |
IEEE 1588 Precision Time Protocol standard
ⓘ
surface form:
IEEE 1588 PTP
IEEE 1588 Precision Time Protocol standard ⓘ
surface form:
Precision Time Protocol
|
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: ITU-T G.8265.1 Description of subject: ITU-T G.8265.1 is an international telecommunications standard that specifies the use of packet-based timing protocols over IP networks to distribute frequency synchronization, particularly for mobile and packet-based services.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
ITU-T Recommendation G.8265
this entity surface form:
ITU-T Recommendation G.8265.1