Which network element does the UE-AMBR perform the speed limit?

• A.UE
• B.MME
• C.SGW
• D.ENODEB

Comment: *

Name: *

Email: *

Verification: *

Regarding random access, which of the following situations may be used for non-competitive random access?

• A.When the UE performs handover, the UE initiates random access in the target cell.
• B.When the UE is in the connected state, the uplink data arrives for some reason (the UE thinks that its uplink is out of step) and needs random access.
• C.Because the wireless link conditions are not good (failure), the RRC connection is reestablished, and the UE initiates random access.
• D.Initial RRC connection establishment, when the UE transits from the idle state to the connected state, the UE initiates random access.
• E.When the UE is in the connected state, the downlink data arrives for some reason (the ENB thinks that the UE is out of step) requires random access.

Comment: *

Name: *

Email: *

Verification: *

Assuming that the UE-ID is 515, the paging period is 256 frames, and Nb is 1T, which of the following frames may be the PF paging frame of the UE? (Multiple choice)

• A.3
• B.131
• C.259
• D.646
• E.262

Comment: *

Name: *

Email: *

Verification: *

Which of the following descriptions are wrong? (Multiple choice)

• A.In order to support VOLTE in an LTE network, IMS and PCRF network elements need to be configured.
• B.EPS bearer is a LTE network QoS basic management unit, if necessary in LTE network to provide different QoS service, it is necessary to establish different EPS bearers
• C.In a network that supports LTE VoIP, if dual AP configuration is used, only one default EPS bearer will be established each time the power is registered.
• D.eSRVCC optimizes the near-end session update process, and the media switch point is changed to the called side network element, which shortens the switch duration.

Comment: *

Name: *

Email: *

Verification: *

At present, it is recommended to share the APN with voice and data, and the data adopts the default bearer. The signaling and media of VoLTE adopt a proprietary bearer and have higher QoS guarantee.

• A.True
• B.False

Comment: *

Name: *

Email: *

Verification: *