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.
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
|
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.