GUL Competence Stream: 4G Troubleshooting

SSSR is a 4G KPI which stands for ____?

• Space to Space Station Radio

• Support Security Sector Reform

• Session Setup Success Rate

• Switch and Signaling System Requirements

Answer explanation

Note: We internally defined 4G SSSR in OPM also as "Service" Setup Success Rate.

4G Accessibility (SSSR) is a combination of what Phases?

• RRC Phase

• S1 Signaling Phase

• E-RAB Phase

• X2 Phase

What KPI is being monitored if you have statistics of E-RAB 'Release' Measurements?

• Handover Success Rate

• Service Drop Rate

• S1 Success Rate

• RRC Setup Success Rate

• ERAB Setup Success Rate

In 4G Retainability, E-RAB releases can be initiated by the following?

• UE

• ENB

• MME

• SGW

• PGW

In the LTE System, what report we can refer to in monitoring RF environment that uses UE's computed SINR & used by the eNodeB to select the most suitable MCS for user data transmission?

• RSSI

• RSRP

• RSRQ

• CQI

What does the term MLB stands for in telecoms 3GPP LTE Releases?

• Make Life Better :)

• Multi-layer Board

• Mobility Load Balancing

• Mobile Lending Business

• Major League Baseball

What are the gains we can get when proper MLB (Mobility Load Balancing) is applied in the network?

• To increase network congestion.

• To have higher network performance.

• To reduce highly loaded cells in the network.

• To balance the uneven load between neighboring cells.

• To increase number of unsatisfied users.

4G Mobility Failures are categorized in 2 Phases. True or False?

• TRUE

• FALSE

Answer explanation

TRUE!

1. Preparation

2. Execution

Optimum Mobility Strategy can really help in increasing 4G Throughput. True or False?

• TRUE

• FALSE

Answer explanation

TRUE!

In Mobility Strategy, we are able to optimize the mobility parameters to re-distribute and balance traffic among cells, which accordingly increases the overall network capacity, resources utilization as well as user throughput w/o extra expenditures.

Good signal strength always indicates high downloads speeds. True or False?

• TRUE

• FALSE

Answer explanation

FALSE!

Not "always". Network Congestion is at play here - - - when there's more traffic on the network than it can reliably support, users may sometimes see full bars of signal but experience poor download speeds.