SEGsinjectroutesdependentonIPsecSA status
3.9 SR000847: BTS Synchronization Mode Support .1 Description of SR000847: BTS Synchronization Mode.1 Description of SR000847: BTS Synchronization Mode
3.9.1.5 SR000847: BTS Synchronization Mode Support management data
For information on alarm, counter, key performance indicator, and parameter documents, see Reference documentation.
Alarms and faults
Table 25: New alarms and faults lists alarms and faults introduced with this feature.
Table 25 New alarms and faults
BTS Fault ID
BTS Fault name Reported alarms
9 Difference between BTS master clock and reference frequency
7108 BASE STATION SYNCHRONIZATION PROBLEM
16 Unit synchronization failed
7101 RESET NOTIFICATION
7108 BASE STATION SYNCHRONIZATION PROBLEM
Table 25 New alarms and faults (Cont.)
BTS Fault ID
BTS Fault name Reported alarms
1817 Oven oscillator heating failure
7108 BASE STATION SYNCHRONIZATION PROBLEM
1818 BTS master clock tuning failure
7108 BASE STATION SYNCHRONIZATION PROBLEM
1819 Oven oscillator clock missing
7108 BASE STATION SYNCHRONIZATION PROBLEM
4019 Master unit has lost connection to the slave unit
7101 RESET NOTIFICATION
7108 BASE STATION SYNCHRONIZATION PROBLEM
6280 Phase error exceeds 5 us limit
7108 BASE STATION SYNCHRONIZATION PROBLEM
Measurements and counters
There are no measurements or counters related to this feature.
Key performance indicators
There are no key performance indicators related to this feature.
Parameters
Table 26: New parameters lists parameters introduced with this feature.
Table 26 New parameters
Full name Abbreviated name Managed object
BTS synchronization mode btsSyncMode SYNC
Manual frame timing adjustment manualFrameTimingAdjustm ent
SYNC
Synchronization object identifier syncId SYNC
3.9.1.6 Sales information
Table 27 Sales information
BSW/ASW License control in network element License control attributes
BSW -
-3.10 SR000365: Electrical 100/1000-Base-T Interface 3.10.1 Description of SR000365: Electrical 100/1000-Base-T
Interface
Introduction to the feature
Feature SR000365: Electrical 100/1000-Base-T Interface introduces one or more 100Base-TX/1000Base-T physical Ethernet interfaces at an SBTS.
3.10.1.1 Benefits
End-user benefits
This feature does not affect the end-user experience.
Operator benefits
This feature provides the following benefits to the operator:
• local site connectivity (for example connecting an SBTS to an external transport device deployed at the same site)
• compliance with IEEE 802.3 ensures interoperability with other network elements
3.10.1.2 Requirements
Hardware requirements
This feature requires to Flexi Multiradio 10 System Module (FSMF) or Flexi Multiradio BTS Transport Sub-Module (FTIF).
3.10.1.3 Functional description
SR000365: Electrical 100/1000-Base-T Interface introduces one or more 100Base-TX/1000Base-T physical Ethernet interfaces at an SBTS. The feature describes the general functions of the physical layer including the physical coding sublayer (PCS) of an Ethernet interface.
Main functionalities introduced with SR000365: Electrical 100/1000-Base-T Interface feature:
• providing one or more 100Base-TX/1000Base-T physical Ethernet interfaces according to IEEE 802.3-2012
• automatic MDI/MDIX detection and swapping of RX/TX directions
Automatic MDI/MDIX detection helps to avoid problems when using wrong cables and simplifies installation of the equipment.
• full-duplex transmission mode only
• available autonegotiation: line rates of 100/1000 Mbps are negotiated
With autonegotiation the link partners select the technology which offers the highest bandwidth and is supported by both of them.
When autonegotiation is disabled, an Ethernet interface operates in a forced mode (100 Mbps, full duplex). For 1000Base-T autonegotiation is mandatory.
• link speed downshift (1000Base-T to 100Base-TX)
When 1000Base-T gets negotiated but link establishment with 1000Base-T fails, link speed downshift switches to 100Base-TX.
• RJ-45 (8P8C) connector with IEEE 802.3-2012 compliant pinning
• master/slave clock selection function (for 1000Base-T)
One link partner takes the role of a clock master and provides the clock reference to the other link partner. The other link partner takes the role of a clock slave, recovers clock, and transmits its own signal with exactly the same speed as the clock master.
Transmitting at the same speed enables implementation of echo cancellation, which improves the signal-to-noise ratio.
• 100 ohm impedance
• outdoor overvoltage protection with use of shielded twisted pair cable Validation of the Ethernet interfaces utilization in FSMr3
Transport network should validate that the user configuration regarding Ethernet interfaces applies to the support and constraints of the BTS types.
With outdoor unit the following figure illustrates the supported Ethernet interface configurations.
Figure 5 Supported Ethernet interface configurations
FSM - Administrative State -ethLkId=0-1
FSMEIF1
ETHLK - Administrative State -ethLkId=0-2
FSMEIF2
ETHLK - Administrative State -ethLkId=1-1
FTIFEIF1
ETHLK - Administrative State -ethLkId=1-3
FTIF EIF3
ETHLK - Administrative State -ethLkId=1-2
FTIF EIF2
ETHLK - Administrative State -ethLkId=1-4
FTIF EIF4 ComboPort
SingleEIFport, nodependency
OnlyoneEIFportcanbeused OnlyoneEIFportcanbeused
• Resulting from above figure up three Ethernet interfaces can be used.
• All interfaces related to one combo port are mutual exclusive, those are:
– FTIF-EIF1 and FTIF-EIF3 – FTIF-EIF2 and FTIF-EIF4
• In case the shared RP3-01/TRS interface is configured as transport interface, the multiplexed Ethernet port, i.e. FTIF-EIF1 and FTIF-EIF3 from transport unit cannot be used anymore.
By default only one Ethernet interface is supported. More interfaces can by activated by software license key.
3.10.1.4 System impact
Interdependencies between features
There are features that rely on the existence of an Ethernet interface. This feature is one of the available options for providing an Ethernet interface.
Exemplary features that require an Ethernet interface:
• SR000350: Ethernet Termination
• SR000375: Synchronous Ethernet Impact on interfaces
This feature has no impact on interfaces.
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 provides 100 Mbps (100Base-TX) or 1000 Mbps (1000Base-T) bandwidth for the client feature SR000350: Ethernet Termination.
• With autonegotiation the link partners select the technology which offers the highest bandwidth and is supported by both of them. If the cell site device connected to an SBTS element advertises only 100Base-TX technology, then the Ethernet link provides 100 Mbps.
• Depending on the BTS RAT, overall site capacity and related mobile backhaul bandwidth, operating at 100Base-TX can lead to a delay of Ethernet frames and potential congestion.
• The offered link speed downshift function can result in rare cases where an Ethernet interface is operating unexpectedly at 100Base-TX operation mode. The user can read the status of the autonegotiation and receives an alarm in case of link speed downshift, so he can take actions in case 100Base-TX is not a desired operation mode.