Chapter 2 WCDMA Call Mode
Common elements of the call mode menus
WCDMA Options Version 6.20
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Softkeys in idle mode As long as no call has been set up and no paging started, you are working in test
level. In test level, the 4400 displays the following softkeys.
UE Call When the User Equipment is registered with the Node B (the 4400) and idle, you
may always dial a number and push the ‘send’ button on the mobile to start an
UE-originated call.
While the call is being established, the Status section of the menu displays the
corresponding status information. After the call has been set up, you can perform
any measurement, or call specific functions with the help of the softkeys. See
section “Softkeys at call level” on page 44 for details.
NB Call Speech/
NB Call Loopback
A push on these softkeys initiates a NB-originated call setup. The base station
will always call the number of the mobile that has registered last with the 4400.
In case the mobile does not answer the NB call, it may not be registered to the
network simulated by the 4400. Usually, the UE registers automatically. Possible
scenarios which might inhibit the mobile when registering with the 4400
include:
– The mobile found a real network to register with.
This can be avoided by placing the UE in a shielded environment, e.g. in the
Willtek RF Shield.
– The mobile does not support the frequency band or the channels that the
4400 is using.
Verify the Band and UARFCN setup and ensure that they are supported by
the device under test.
Calls a set of parameter menus on-screen. With the help of
these menus, you may set and modify test parameters, limits,
the power/time template and so on.
A push on this softkey will make the Node B call the User
Equipment (also refer to “NB Call Speech/ NB Call Loopback”
on page 43). The softkey will change to
STOP when pressed.
As soon as the call has been completed, the entire line of
softkey labels will change to provide access to additional
functions. A description of the softkeys displayed on call level
can be found in section “Softkeys at call level” on page 44.
A push on this softkey initiates a call using the predefined
Reference Measurement Channel. For further details regard-
ing the RMC refer to Table 4 and Table 5 on page 69.
As soon as the call has been completed, the entire line of
softkey labels will change to provide access to additional
functions. A description of the softkeys displayed on call level
can be found in section “Softkeys at call level” on page 44.
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