WCDMA Signaling
R&S
®
CMW-KG4xx/-KM4xx/-KS4xx
30
User Manual 1173.9657.02 ─ 11
Displayed while an inter-RAT handover to another signaling application is per-
formed.
●
Disconnecting
Additional transitions and handover
The transitions in the figure above 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 timeout or a loss of the radio link cause additional transitions.
An inter-RAT handover to another signaling application can be performed in the "Call
Established" CS state; see
2.2.8.2
PS Connection States
The main PS connection states are described in the following table.
PS State
Description
Off
No signal transmission
On (Idle)
The R&S
CMW emulates a UTRAN cell, transmitting a WCDMA signal to which the
UE can synchronize. After synchronization the UE can read the packet switched
domain information. It learns that the instrument (representing the serving cell in a real
network) supports packet switched services and can initiate a PS attach.
Attached
The UE is PS attached.
Connection Estab-
lished
A connection has been set up, either a mobile terminated test mode connection or a
mobile originated end to end packet data connection.
A number of control commands initiated by the instrument or by the UE switch between
the listed states. The following figure shows possible state transitions.
General Description
深圳德标仪器
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