R&S CMW-KM5 Series, User Manual

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LTE Signaling
R&S
®
CMW-KM5xx/-KS5xx
30 User Manual 1173.9628.02 ─ 16
d) If you have selected another signaling application as target, the target cell is
activated automatically (downlink signal switched on). Wait until the cell icon
includes "RDY" to indicate that the handover target is ready to receive the
handover.
6. Press the button "Execute".
You can monitor the process in the "Event Log" area of the main view of the signal-
ing applications.
If you want to reconfigure only one parameter of the LTE signaling application, you can
also do this directly, without using the "Inter/Intra-RAT" hotkey. Simply modify the
channel or the operating band or the cell bandwidth during an established connection.
The R&S
CMW then initiates a redirection procedure to reconfigure the parameter.
2.2.10 Physical DL Channels and Signals
This section provides an overview of the LTE downlink radio resources, physical chan-
nels and physical signals.
See also chapter 2.2.16, "Operating Bands" , on page 57.
● Resources in Time and Frequency Domain ............................................................30
● Physical Channel Overview .................................................................................... 34
● Physical Signal Overview ........................................................................................34
2.2.10.1 Resources in Time and Frequency Domain
The DL radio resources in an LTE system are divided into time-frequency units called
resource elements. In the time domain a resource element corresponds to one OFDM
symbol. In the frequency domain it corresponds to one subcarrier (see next figure).
For the mapping of physical channels to resources, the resource elements are grouped
into resource blocks (RB). Each RB consists of 12 consecutive subcarriers (180 kHz)
and six or seven consecutive OFDM symbols (0.5 ms).
General Description
深圳德标仪器
135-1095-0799