Uplink/Downlink Traffic
PACKETSNOTMATCHED BY POLICIES AREROUTED
3.40 SR000374: Timing over Packet with Frequency Sync
3.40.1 Description of SR000374: Timing over Packet with Frequency Sync
3.40.1.5 SR000374: Timing over Packet with Frequency Sync management datadata
For information on alarm, counter, key performance indicator, and parameter documents, see Reference documentation.
Alarms and faults
Table 115: New alarms and faults lists alarms and faults introduced with this feature.
Table 115 New alarms and faults
BTS Fault ID
BTS Fault name Reported alarms
61631 ToP master service $IP unusable
7665 BASE STATION TRANSMISSION ALARM
4298 ToP reference missing 7108 BASE STATION SYNCHRONIZATION PROBLEM
4323 ToP configuration mismatch
7108 BASE STATION SYNCHRONIZATION PROBLEM
Measurements and counters
Table 116: New counters lists counters introduced with this feature.
Table 116 New counters
Counter ID Counter name Measurement
Table 116 New counters (Cont.)
Counter ID Counter name Measurement
M51361C1 topMinFreqSyncError TOP FreqSync Statistics
M51361C2 topAvgFreqSyncError TOP FreqSync Statistics
M51361C3 topMaxFreqSyncError TOP FreqSync Statistics
M51361C4 topFreqSyncSLS TOP FreqSync Statistics
Key performance indicators
There are no key performance indicators related to this feature.
Parameters
Table 117: New parameters lists parameters introduced with this feature.
Table 117 New parameters
Full name Abbreviated name Managed object
TOP FreqSync statistics measurement interval
topFreqSyncStatisticsInterval PM
Synchronization reference source list referenceSourceList SYNC
– Input reference – inputReference SYNC
– Input reference priority – inputReferencePriority SYNC
Synchronization plane DSCP sPlaneDscp TOP
Synchronization plane IP address sPlaneIpAddress TOP
ToP domain number topDomainNumber TOP
TOP object identifier topId TOP
Accepted clock quality list (frequency) acceptedClockQualityFreq TOPF
ToP ieee telecom profile selection ieeeTelecomProfile TOPF
ToP masters properties table topMasters TOPF
– IP Address of the ToP master – masterIpAddr TOPF
Synchronisation message rate syncMessageRate TOPF
TOPF object identifier topfId TOPF
3.40.1.6 Sales information
Table 118 Sales information
BSW/ASW License control in network element License control attributes
ASW Pool License ON/OFF
3.41 SR000383: Timing over Packet with phase synchronization
3.41.1 Description of SR000383: Timing over Packet with phase synchronization
Introduction to the feature
This feature enables phase and time synchronization of an SBTS via the packet network.
Phase and time synchronization mechanism is mandatory in FDD LTE mode in certain advanced applications (for example in the eICIC).
This mechanism of synchronization is based on the IEEE1588-2008 PTPv2 standard.
3.41.1.1 Benefits
End-user benefits
This feature does not affect the end-user experience.
Operator benefits
This feature provides that the GPS equipment is not mandatory anymore to be connected with an SBTS to provide phase and time synchronization to this SBTS. In addition, the feature provides that, as phase and time synchronization can now be provided in areas where the GPS equipment cannot be placed, the flexibility of the site deployment mechanism is enhanced.
3.41.1.2 Requirements
Hardware requirements
This feature requires Flexi Multiradio 10 System Module (FSMF).
3.41.1.3 Functional description
Overview
This feature enables phase and time synchronization of an SBTS via the packet network.
Phase and time synchronization mechanism is mandatory in FDD LTE mode in certain advanced applications (for example in the eICIC). The synchronization reference is provided via the Timing over Packet mechanism. With the introduced feature, this mechanism is enhanced and includes now phase and time synchronization.
Timing over Packet mechanism is based on the IEEE1588-2008 PTPv2 standard. The
• PTP/UDP/IPv4/Ethernet with Unicast operation - this mode is recommended for the configuration with only partial PTP on path support. The timing slave is not directly
• PTP/Ethernet with Multicast operation - this mode is recommended for the network configuration with the full on-path PTP support. The timing slave is directly
connected to the node with the on-path PTP support and all intermediate nodes among the grandmaster and the slaves provide the on-path support - boundary clock mechanism/transparent clock mechanism.
PTP/UDP/IP with Unicast operation
Timing over Packet with phase synchronization operates with partial on-path PTP timing
Figure 31 PTP/UDP/IP with Unicast operation
PTP |!UDP |!IP UNICAST
BC – BOUNDARY CLOCK E2ETC –
END TO!END TRANSPARENT CLOCK GM – GRANDMASTER!CLOCK M – IEEE1588!MASTER!PORT S – IEEE1588!SLAVE!PORT
E2ETC E2ETC
E2ETC E2ETC
PTP/Ethernet with Multicast operation
Timing over Packet with phase synchronization operates with full on-path PTP timing
Figure 32 PTP/Ethernet with Multicast operation
BC – BOUNDARY CLOCK E2ETC –
END TO!END TRANSPARENT CLOCK GM – GRANDMASTER!CLOCK M – IEEE1588!MASTER!PORT S – IEEE1588!SLAVE!PORT M
PTP |!ETHERNET MULTICAST PTP |!ETHERNET MULTICAST
Both unicast and multicast modes support the end-to-end transparent clocks among the
3.41.1.4 System impact
Interdependencies between features
This feature requires the feature:
• SR000847: BTS Synchronization Mode Support
This feature affects the features:
• SR000350: Ethernet Termination
• SR000402: BTS QoS Support for Terminated and Routed Traffic
• SR000589: IPv4/IPv6 Transport Stack
This feature is the precondition for the feature:
• SR000385: Synchronization Hub Impact on interfaces
This feature has an impact on interfaces as beneath:
• The feature provides the management interface of the embedded timing slave to configure the embedded timing slave clock, obtain the performance and fault data, and the internal and external interface to provide phase and time output data.
Impact on network and network element management tools
This feature has no impact on network management or network element management tools.
Impact on system performance and capacity
This feature has an impact on system performance and capacity as beneath:
• The feature has an impact on the performance of the dependent features when the determined phase synchronization accuracy of an SBTS is not maintained.