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LTE Signaling
R&S
®
CMW-KM5xx/-KS5xx
27
User Manual 1173.9628.02 ─ 16
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Receiving Message
Displayed while an SMS message is received from the MS. To check the received
message, see
chapter 2.4.15.2, "Incoming SMS"
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Incoming Handover in Progress
Displayed while a handover is received (not for handover within signaling applica-
tion).
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Outgoing Handover in Progress
Displayed while a handover to another signaling application / instrument is per-
formed.
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Disconnect in Progress
Additional transitions and handover
are not complete. The "Off" state can be reached from any
state by turning off the cell signal (ON | OFF). Moreover, incidents like an alerting time-
out or a loss of the radio link cause additional transitions.
A handover within the signaling application can be performed in the "Connection
Established" state. An inter-RAT / inter-instrument redirection can also be performed in
the "Attached" state (established RRC connection required).
2.2.8.2
SCC States
The Secondary Component Carrier (SCC) states are displayed in the main view and
described in the following table.
SCC State
Description
(SCC) Off
No downlink signal transmission via the SCC frequency
(SCC) On
An SCC downlink signal is transmitted, including synchronization signals, reference signal
and system information. The UE is not yet informed about the SCC and ignores it.
RRC Added
An "RRC Connection Reconfiguration" message has been sent to the UE via the PCC.
The UE has acknowledged this message. So in this state the UE is informed about the
presence of the SCC and knows important SCC properties like the carrier frequency.
MAC Activa-
ted
The SCC has been activated via a MAC message, sent to the UE via the PCC. The UE
has acknowledged this message.
After SCC activation, the SCC scheduling is started. The scheduling information is sent to
the UE via the PDCCH of the SCC (cross-carrier scheduling is not used).
The SCC signal can be switched on as soon as the cell / the PCC signal has been
switched on. So the "Packet Switched" state "On" is a prerequisite for the SCC state
"On".
The SCC state "RRC Added" requires that an RRC connection has been established
on the PCC. So the "Packet Switched" state must be "Connection Established", if the
parameter
is disabled. If it is enabled, the "Packet Switched"
state "Attached" is sufficient.
You can set up the SCC automatically, semiautomatically or manually:
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Manual activation means that you initiate each state transition step separately.
General Description
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