Rohde & Schwarz CMW-KM75 Series User manual

R&S®CMW-KM75x/-KS75x/-KS760
TD-SCDMA Firmware Applications
User Manual
User Manual
1173.9670.02 ─ 13
(;×îÔ2)
Test & Measurement
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This user manual describes the following R&S®CMW options:
●R&S®CMW-KM750 (TD-SCDMA, TX measurement, uplink)
●R&S®CMW-KM751 (TD-SCDMA enhancement, TX measurement, uplink)
●R&S®CMW-KM012 (TX measurement, multi evaluation list mode)
●R&S®CMW-KS750 (TD-SCDMA R4, basic signaling)
●R&S®CMW-KS751 (TD-SCDMA R5 HSDPA / R7 HSUPA, basic signaling)
●R&S®CMW-KS760 (TD-SCDMA R4, advanced signaling)
© 2015 Rohde & Schwarz GmbH & Co. KG
Mühldorfstr. 15, 81671 München, Germany
Phone: [phone] - 0
Fax: [phone]
E-mail: [email protected]
Internet: www.rohde-schwarz.com
Subject to change – Data without tolerance limits is not binding.
R&S® is a registered trademark of Rohde & Schwarz GmbH & Co. KG.
Trade names are trademarks of the owners.
The following abbreviations are used throughout this manual: R&S®CMW is abbreviated as R&S CMW.
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Contents
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Contents
1 Preface.................................................................................................... 7
1.1 How to Read Firmware Application Chapters............................................................ 7
1.1.1 General Description........................................................................................................ 7
1.1.2 Application Sheets.......................................................................................................... 8
1.1.3 GUI Reference................................................................................................................ 8
1.1.4 Programming Examples..................................................................................................8
1.1.5 Command Reference...................................................................................................... 8
2 TD-SCDMA Signaling.............................................................................9
2.1 What's New in this Revision.........................................................................................9
2.2 General Description...................................................................................................... 9
2.2.1 Test Setups................................................................................................................... 10
2.2.2 Initiating Signaling Tests............................................................................................... 12
2.2.3 End to End Packet Data Connections...........................................................................13
2.2.4 External Fading............................................................................................................. 14
2.2.5 Connection States.........................................................................................................15
2.2.6 TD-SCDMA Signal Properties.......................................................................................20
2.2.7 Physical DL Channels................................................................................................... 24
2.2.8 Handover.......................................................................................................................28
2.2.9 Connection Types......................................................................................................... 29
2.2.10 Frequency Bands.......................................................................................................... 33
2.2.11 Trigger Signals.............................................................................................................. 33
2.2.12 Transmitter Power Control (TPC)..................................................................................34
2.2.13 Random Access Procedure.......................................................................................... 37
2.2.14 BER Measurement........................................................................................................38
2.3 Application Sheets......................................................................................................43
2.3.1 Combined Signal Path Measurements..........................................................................44
2.3.2 Handover from TD-SCDMA to GSM............................................................................. 48
2.3.3 Inner Loop Power Control Tests................................................................................... 51
2.4 GUI Reference............................................................................................................. 55
2.4.1 Signaling View...............................................................................................................56
2.4.2 Signaling and Connection Control.................................................................................69
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2.4.3 Using the Shortcut Softkeys..........................................................................................72
2.4.4 General Settings........................................................................................................... 73
2.4.5 I/Q Settings................................................................................................................... 74
2.4.6 RF Settings................................................................................................................... 76
2.4.7 TDD Slot and UE Info Configuration............................................................................. 80
2.4.8 Physical Downlink Settings........................................................................................... 81
2.4.9 Physical Uplink Settings................................................................................................84
2.4.10 Connection Configuration..............................................................................................90
2.4.11 Network Settings........................................................................................................... 96
2.4.12 HSDPA Settings..........................................................................................................107
2.4.13 UE Measurement Report Settings.............................................................................. 108
2.4.14 Messaging (SMS) Parameters.................................................................................... 109
2.4.15 Shortcut Configuration................................................................................................ 111
2.4.16 Message Monitoring Settings......................................................................................112
2.4.17 BER Measurement Configuration............................................................................... 112
2.5 Programming.............................................................................................................117
2.5.1 Signaling Application...................................................................................................117
2.5.2 BER Tests................................................................................................................... 128
2.6 Command Reference................................................................................................ 129
2.6.1 Conventions and General Information........................................................................ 130
2.6.2 General Settings......................................................................................................... 135
2.6.3 Connection Control and States................................................................................... 135
2.6.4 Signaling Information.................................................................................................. 143
2.6.5 Routing Settings..........................................................................................................156
2.6.6 Physical Channel Downlink Settings...........................................................................164
2.6.7 Physical Channel Uplink Settings............................................................................... 169
2.6.8 Connection Configuration............................................................................................178
2.6.9 Network Settings......................................................................................................... 185
2.6.10 HSDPA Settings..........................................................................................................202
2.6.11 UE Measurement Report Settings.............................................................................. 202
2.6.12 Messaging (SMS)........................................................................................................205
2.6.13 Message Monitoring Settings......................................................................................207
2.6.14 BER Measurement......................................................................................................208
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2.7 List of Commands.....................................................................................................215
3 TD-SCDMA Multi Evaluation Measurement..................................... 219
3.1 What's New in this Revision.....................................................................................219
3.2 General Description.................................................................................................. 219
3.2.1 TD-SCDMA TX Tests..................................................................................................220
3.2.2 TD-SCDMA RX Tests................................................................................................. 222
3.2.3 Multi Evaluation List Mode.......................................................................................... 223
3.2.4 TD-SCDMA Signal Properties.....................................................................................226
3.2.5 Limit Settings and Conformance Requirements..........................................................229
3.2.6 Measurement Results................................................................................................. 234
3.3 GUI Reference........................................................................................................... 242
3.3.1 Measurement Control..................................................................................................242
3.3.2 Parameters and Settings.............................................................................................243
3.3.3 Measurement Results................................................................................................. 260
3.4 Programming.............................................................................................................263
3.4.1 General Examples.......................................................................................................263
3.4.2 Using the TD-SCDMA List Mode................................................................................ 269
3.5 Command Reference................................................................................................ 272
3.5.1 Conventions and General Information........................................................................ 272
3.5.2 General Measurement Settings.................................................................................. 277
3.5.3 Multi Evaluation Measurement Commands................................................................ 290
3.5.4 Combined Signal Path Commands............................................................................. 368
3.6 List of Commands.....................................................................................................369
4 TD-SCDMA TPC Measurement..........................................................377
4.1 What's New in this Revision.....................................................................................377
4.2 General Description.................................................................................................. 378
4.2.1 Test Setup...................................................................................................................378
4.2.2 How to Perform a Measurement................................................................................. 378
4.2.3 Parallel Signaling and Measurement.......................................................................... 380
4.2.4 Trigger Modes............................................................................................................. 380
4.2.5 TPC Setups.................................................................................................................382
4.2.6 Limit Settings and Conformance Requirements..........................................................383
4.2.7 Measurement Results................................................................................................. 386
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4.3 GUI Reference........................................................................................................... 390
4.3.1 Measurement Control..................................................................................................390
4.3.2 Parameters and Settings.............................................................................................390
4.3.3 Measurement Results................................................................................................. 396
4.4 Programming.............................................................................................................397
4.4.1 Measurements with Standalone Scenario...................................................................397
4.4.2 Measurements with Combined Signal Path Scenario................................................. 400
4.5 Command Reference................................................................................................ 402
4.5.1 Conventions and General Information........................................................................ 403
4.5.2 General Measurement Settings.................................................................................. 407
4.5.3 TPC Measurement Commands...................................................................................407
4.5.4 Combined Signal Path Commands............................................................................. 425
4.6 List of Commands.....................................................................................................425
Index....................................................................................................428
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Preface
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1 Preface
The operation of the R&S CMW is described in several user manuals:
●The R&S CMW user manual describes the base software, common features of the
firmware applications and basic principles for manual operation and remote control.
There is a separate manual version for each R&S CMW model.
●Additional user manuals, like this document, describe the firmware applications.
There is only one version of these manuals for all R&S CMW models.
Rohde & Schwarz provides registered users a "CMW Customer Web" section on
GLORIS, the Global Rohde & Schwarz Information System: https://extranet.rohde-
schwarz.com. From this resource, you can download software updates, waveform
library updates and documentation updates, for example updates of this document.
1.1 How to Read Firmware Application Chapters
Each firmware application is described in a separate chapter. These chapters can be
read independently of each other. However, they are all organized as follows:
1. General Description
2. Application Sheets (optional)
3. GUI Reference
4. Programming Examples
5. Command Reference
The chapters "System Overview" and "Remote Control" in the R&S CMW user manual
provide additional important information independent of the individual firmware applica-
tions. The most important parts are referenced by the firmware application descrip-
tions.
1.1.1 General Description
This section provides a general description of the firmware application, independent of
a specific operation mode (manual or remote control). It gives a high-level introduction
to the capabilities of the firmware application. Background information related to the
network standard is given as far as it is directly related to administrable parameters.
For measurement applications a detailed description of measurement results and a
description of configurable limits is given, including the relation to conformance require-
ments defined in network standard specifications.
How to Read Firmware Application Chapters
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Preface
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1.1.2 Application Sheets
This optional section provides short application examples for select issues and related
background information.
1.1.3 GUI Reference
The GUI reference describes the manual operation of the firmware application via the
Graphical User Interface (GUI).
The description of a configuration dialog usually starts with a screenshot presenting the
preset values of the parameters (sometimes preset values are modified to enable hid-
den parts of a dialog). Below the screenshot all shown parameters are described. For
each single parameter a link to the corresponding command description in the "Com-
mand Reference" is provided. Ranges for numeric parameters and reset values are
given there.
For measurement results links to the corresponding command descriptions are provi-
ded (commands to retrieve the results). The measurement results are described in
detail in the "General Description".
1.1.4 Programming Examples
The programming examples show how to control and configure the firmware applica-
tion via a remote-control program and how to retrieve measurement results. The exam-
ples consist of comprehensive command sequences. You can check just a single com-
mand of a sequence to get an example for the syntax of this single command. But you
can also consider an entire sequence showing the commands in the context of a com-
mand script, under consideration of dependencies and required orders of the com-
mands.
The command sequences are written with the intention to list most commands of the
firmware application. They do not show the fastest way for a given configuration task.
The fastest way would use many reset values and omit the corresponding commands.
The examples are referenced by the command descriptions of the "Command Refer-
ence".
1.1.5 Command Reference
The command reference provides information on the remote commands of the firm-
ware application. The commands are grouped according to their function.
Each command description indicates the syntax of the command header and of the
parameters. For input parameters the allowed ranges, reset values and default units
are listed, for returned values the expected ranges and default units. Most commands
have a command form and a query form. Exceptions are marked by "Setting only",
"Query only" or "Event". Furthermore a link to the "Programming Examples" is provided
and the first software version supporting the command is indicated.
How to Read Firmware Application Chapters
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TD-SCDMA Signaling
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2 TD-SCDMA Signaling
The "TD-SCDMA Signaling" firmware application (option R&S CMW-KS750) allows the
R&S CMW to emulate a TD-SCDMA cell and to communicate with the UE under test.
The UE can synchronize to the downlink signal, register to the Circuit Switched (CS)
domain and attach to the Packet Switched (PS) domain. A mobile originating or mobile
terminating connection can be set up.
The basic R4 signaling functionality provided by R&S CMW-KS750 can be enhanced
by the following options:
●R&S CMW-KS760: advanced parameter settings for R4
●R&S CMW-KS751: basic signaling for R5/7, e.g. setup of an HSDPA test mode
connection
Most tests can be performed using the "TD-SCDMA Multi Evaluation" measurement
included in option R&S CMW-KM750. Data transfer tests can be performed using the
Data Application Unit (DAU, option R&S CMW-B450x and R&S CMW-KM050).
Additionally measurements are provided by the TD-SCDMA signaling application. For
details refer to BER Measurement.
2.1 What's New in this Revision
This revision describes version 3.5.10 and later of the TD-SCDMA signaling firmware
application. Compared to the version 3.2.71, it provides only editorial changes.
Software Version
To check your R&S CMW software version, open the "Setup" dialog and click "HW/SW
Equipment". The initial software version for each remote control command is quoted in
the reference description.
2.2 General Description
The following sections describe how to use the R&S CMW for TD-SCDMA signaling
tests and provide background information.
●Test Setups.............................................................................................................10
●Initiating Signaling Tests......................................................................................... 12
●End to End Packet Data Connections.....................................................................13
●External Fading.......................................................................................................14
●Connection States...................................................................................................15
●TD-SCDMA Signal Properties.................................................................................20
●Physical DL Channels.............................................................................................24
●Handover.................................................................................................................28
●Connection Types................................................................................................... 29
What's New in this Revision
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●Frequency Bands....................................................................................................33
●Trigger Signals........................................................................................................33
●Transmitter Power Control (TPC)............................................................................34
●Random Access Procedure.................................................................................... 37
●BER Measurement..................................................................................................38
2.2.1 Test Setups
These sections provide an overview of typical test setups for the individual scenarios.
Using several signaling applications in parallel
Depending on the installed hardware and software options, you can run several signal-
ing application instances in parallel.
Example: Assume an instrument with two Signaling Unit Wideband (SUW), one Signal-
ing Unit Universal (SUU), four TX paths and four RX paths.
This instrument allows you to run for example:
●two TD-SCDMA signaling instances using the standard cell scenario plus one
instance of an SUU signaling application (e.g. GSM / CDMA2000), or
●one TD-SCDMA signaling instance plus one instance of an SUW signaling applica-
tion (e.g. LTE) and one instance of an SUU signaling application.
The LTE and TD-SCDMA signaling applications both use the SUW. Signaling instance
1 uses SUW1, while instance 2 uses SUW2. An SUW can only be used by one
instance at a time. You can run for example LTE signaling instance 2 and TD-SCDMA
signaling instance 1 in parallel, but not instance 1 of both applications.
2.2.1.1 Test Setup for Standard Cell Scenario
The basic test setup for a standard cell scenario uses a bidirectional RF connection
between the tester and the device under test (DUT), carrying both the downlink and the
uplink signal:
●The R&S CMW transmits the downlink signal to which the DUT can synchronize in
order to register or attach. The downlink signal is used to transfer signaling mes-
sages and user data to the DUT.
●The DUT transmits an uplink signal that the R&S CMW can receive and decode in
order to set up a connection and perform various measurements.
For this setup the DUT is connected to one of the bidirectional RF COM connectors at
the front panel of the R&S CMW. No additional cabling and no external trigger is nee-
ded. The input level ranges of all RF COM connectors are identical.
See also: "RF Connectors" in the R&S CMW user manual, chapter "Getting Started"
General Description
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Fig. 2-1: Test setup for standard cell
2.2.1.2 Test Setup for Standard Cell External Fading
You can integrate an R&S AMU200A into a test setup in order to superimpose fading
on the baseband signal. The R&S AMU200A must be connected to the digital I/Q inter-
face of the R&S CMW. At least one I/Q board must be installed at the R&S CMW for
that purpose (option R&S CMW-B510x/-B520x).
All connections between R&S CMW and R&S AMU200A are established via the rear
panels of the instruments.
The following figure shows a possible rear panel cabling using the first I/Q board (DIG
IQ 1 to 4).
General Description
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The RF connections between R&S CMW and DUT must be established in the same
way as without external fading.
2.2.2 Initiating Signaling Tests
The signal generator of the TD-SCDMA signaling application is controlled like any real-
time signal generator, see chapter 2.4.2, "Signaling and Connection Control",
on page 69.
The TD-SCDMA downlink signal is turned on as long as the "TD-SCDMA Signaling"
softkey indicates the "ON" state (after switching on, wait until the hour glass symbol
has disappeared). When DL signal transmission has been turned on, the connection
states can be controlled via hotkeys at the R&S CMW and via actions at the UE.
The default settings of the R&S CMW generally ensure a DL signal with suitable char-
acteristics for connection setup. The most important settings can be modified directly in
the main view.
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Checks in case of failed registration or attach
If the registration of the UE fails, check the demodulation info (see "CMW Demod. Info"
on page 57) and the following R&S CMW settings:
●The "Frequency" of the generated DL signal must be within the frequency bands
supported by the UE.
●The "Expected Nominal Power" must be in accordance with the uplink signal
power.
●The power level of physical DL channels must be sufficient so that the UE under
test can receive the DL signal.
●The security settings in the "Network" section of the configuration dialog must be in
accordance with the UE capabilities.
Registration can fail if authentication or security is disabled but the UE expects/
requires an authentication or security procedure. It can also fail if authentication or
security is enabled but not supported by the UE or the SIM card type or secret key
do not match.
An appropriate 3GPP USIM can be obtained from Rohde & Schwarz (R&S CMW-
Z04, stock no. 1207.9901.02).
Performing measurements
The required settings vary depending on the measurement to be performed. However,
the general procedure outlined below is applicable to most measurements.
1. Connect your UE to the R&S CMW (see Test Setups).
2. Open the TD-SCDMA signaling firmware application.
3. Configure the signaling application according to the test to be performed. For TX
measurements it is recommended to disable measurement reporting.
4. To turn on the DL signal, press "ON | OFF" and wait until the "TD-SCDMA Signal-
ing" softkey indicates the "ON" state and the hour glass symbol has disappeared.
5. Switch on the UE.
The UE synchronizes to the DL signal and registers (attaches). Note the connec-
tion states displayed in the main view.
6. Set up a UE originated or UE terminated connection.
7. Use the "TD-SCDMA RX Meas" or "TD-SCDMA Multi Eval." softkey to switch to the
measurement application. The TD-SCDMA RX measurements are provided by the
TD-SCDMA signaling firmware application. The TD-SCDMA TX measurements are
available as option R&S CMW-KM750.
8. Configure and start the measurement.
2.2.3 End to End Packet Data Connections
To set up a TD-SCDMA packet data connection you need the Data Application Unit
(DAU) in addition to the "TD-SCDMA signaling" application. The DAU itself is available
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as option R&S CMW-B450x and the DAU measurements as R&S CMW-KM050. For
IPv4 option R&S CMW-KA100 is required, for IPv6 additionally option R&S CMW-
KA150.
To set up an end to end packet data connection, proceed as follows:
1. Configure the IP settings of DAU according to the DAU documentation.
2. Enable packet switched services, see "Packet Switched Domain" on page 97.
3. Configure the packet data parameters, see chapter 2.4.10.6, "Packet Data",
on page 95.
4. Configure any other settings as desired (as for a connection without the DAU) and
switch on the cell signal.
5. Register / attach the UE.
6. Initiate a mobile originated packet data connection at the UE.
It is not possible to initiate a mobile terminated packet data connection at the
instrument.
When the packet data connection has been established, you can use the DAU to per-
form IP-based data tests (see DAU documentation).
You can also perform other measurements that do not require a DAU, e.g. TX mea-
surements. The BER measurement can not be performed with a packet data connec-
tion.
Most measurements require the transmission of data. For a test mode connection the
signaling application takes care of downlink data transmission. For a packet data con-
nection the signaling application does not transfer data, so you must generate IP traffic
by other means, e.g. using the DAU. You may for example initiate an IPerf measure-
ment or an FTP data transfer. For details refer to the DAU documentation.
Some DAU measurements and applications require to enter the IP address(es)
assigned to the UE. You can retrieve this information from the UE info section, see
chapter 2.4.1.5, "UE Info", on page 67.
2.2.4 External Fading
An external fading scenario allows you to route the downlink baseband signal to an
R&S AMU200A that superimposes fading on the signal and routes it back. Thus fading
can be added to the downlink signal.
Configuring and activating fading
1. Connect the DUT and the R&S AMU200A to the R&S CMW (see chapter 2.2.1.2,
"Test Setup for Standard Cell External Fading", on page 11).
2. Configure the signaling application according to the test to be performed, espe-
cially select an external fading scenario and configure the downlink settings.
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3. In the configuration tree, section "IQ Settings > IQ Out", note the "Baseband PEP"
and the "Crest Factor".
4. Configure the R&S AMU200A, especially the following settings:
Reference oscillator settings:
●Source = External
● External Reference Frequency = 10 MHz
Baseband input settings for all used connectors:
● Sample Rate = User-Defined, 100 MHz
● Baseband Input Level: enter the crest factor and the PEP displayed in step 3.
Digital I/Q output settings for all used connectors:
● Sample Rate = User-Defined, 100 MHz
● Set Level Via = PEP
● PEP = PEP value displayed in step 3
5. In the R&S AMU200A, activate fading and note the signal level. If you add noise to
the signal, note the signal level without noise.
6. Configure the I/Q input of the R&S CMW:
In the configuration tree, section "IQ Settings > IQ In > Baseband Level", enter the
signal level noted in the previous step.
Alternatively it is also possible, to specify the signal output level of the R&S
AMU200A, to note the resulting PEP and to enter this PEP value at the R&S CMW
for "Baseband PEP". But this is not recommended.
7. Turn on the downlink signal at the signaling application and set up a connection.
The configuration is now complete. Fading is active.
A reconfiguration of the settings at the R&S AMU200A during an active connection
to the DUT may result in the loss of the connection or in erroneous measurement
results.
After a reconfiguration of the baseband input settings of the R&S AMU200A, turn
the downlink signal at the signaling application off and on again.
2.2.5 Connection States
The UMTS core network consists of two service domains, the Circuit Switched (CS)
and the Packet Switched (PS) domain. You can set up a connection in the CS domain
or a connection in the PS domain. For supported connection types see chapter 2.2.9,
"Connection Types", on page 29.
The connection schemes for the CS domain and the PS domain are independent from
each other. The downlink signal generated by the R&S CMW can emulate a UTRAN
TDD cell supporting both CS and PS services, or a UTRAN TDD cell supporting CS
services only.
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2.2.5.1 CS Connection States
The main CS connection states are described in the following table.
CS State Description
Off No signal transmission / no connection to the UE
On The R&S CMW emulates a UTRAN cell, transmitting a TD-SCDMA signal to which the UE
can synchronize. After synchronization the UE can initiate a registration towards the
instrument, and the instrument can page the UE in order to attempt a connection.
Registered Synchronization and registration have been performed.
Alerting The R&S CMW is attempting a connection to the UE. The UE is responding (ringing) but
the connection is not yet established.
This state is skipped for Connection Type = Test Mode.
Call Estab-
lished
A Radio Resource Control (RRC) connection between the instrument and the UE has
been established. This means that dedicated channels are allocated between the
R&S CMW and the UE. Depending on the Radio Access Bearer (RAB) configuration, the
dedicated channel can consist of the Signaling Radio Bearer (SRB) used to set up the
connection or other RABs, e.g. a Reference Measurement Channel (RMC) or voice chan-
nel (AMR).
Control commands, initiated by the R&S CMW or by the UE, switch between the listed
states. The following figure shows possible state transitions.
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Fig. 2-2: Connection states CS domain
dotted line = action initiated by instrument
dashed line = action initiated by UE
solid line = action initiated by UE or instrument
In addition to the main states shown in the table and the figure the instrument indicates
the following transitory states:
●Signaling
Displayed e.g. during UE registration, while a short message is sent / received or
when the channel changes during a call
●Paging
Displayed during MTC setup. When an answer from the UE is received, the state
changes to "Call Setup in Progress"
●Connecting
Displayed during MOC and MTC setup
●Incoming Handover
Displayed while an inter-RAT handover from another signaling application is per-
formed.
●Outgoing Handover
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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 chapter 2.2.8, "Handover", on page 28.
2.2.5.2 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 TD-SCDMA 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 135-1095-0799

TD-SCDMA Signaling
R&S®CMW-KM75x/-KS75x/-KS760
19User Manual 1173.9670.02 ─ 13
Fig. 2-3: Connection states PS domain
dotted line = action initiated by instrument
dashed line = action initiated by UE
solid line = action initiated by UE or instrument
In addition to the main states shown in the table and the figure the instrument indicates
state "Signaling" e.g. during attach.
In addition to the main states shown in the table and the figure the instrument indicates
the following transitory states:
●Signaling
Displayed e.g. during attach
●Paging
Displayed during MTC setup. When an answer from the UE is received, the state
changes to "Connection Setup in Progress"
●Connecting
Displayed during state transition from "On" or "Attached" to "Connection Estab-
lished"
●Disconnecting
Displayed during state transition from "Connection Established" back to "On" or
"Attached"
General Description
深圳德标仪器 135-1095-0799

TD-SCDMA Signaling
R&S®CMW-KM75x/-KS75x/-KS760
20User Manual 1173.9670.02 ─ 13
Additional transitions
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 a time-
out or a loss of the radio link cause additional transitions.
2.2.6 TD-SCDMA Signal Properties
TD-SCDMA is a mobile radio standard in which the available radio resources are divi-
ded among subscribers according to frequency (Frequency Division Multiple Access,
FDMA), time (Time Division Multiple Access, TDMA) and code (Code Division Multiple
Access, CDMA). The same frequency is used for uplink and downlink (Time Division
Duplex, TDD).
2.2.6.1 Frames and Timeslots
A TD-SCDMA signal is a sequence of radio frames of 10 ms length, each divided into
two subframes of 5 ms length. Each subframe comprises 7 traffic timeslots (TS0 to
TS6) and two special timeslots (DwPTS and UpPTS) for synchronization.
General Description
深圳德标仪器 135-1095-0799