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8960 GSM/GPRS/EGPRS Online User's Guide
E1968A, E6701F, E6704A
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How Do I Set Up and Use the Dual Transfer Mode Feature?

Last updated: December 2, 2008

Dual Transfer Mode is only applicable to the lab applications.

This section details how to:

Configure DTM Parameters

Enable/Disable Dual Transfer Mode

This procedure details how to enable/disable Dual Transfer Mode. The test set's default setting for this parameter is on. See DTM Enable for more information.

  1. Press Call Setup .
  2. Press Operating Mode ( F1 ) and select Cell Off from the Operating Mode menu.
  3. Press Cell Info ( F6 ).
  4. Press Cell Operation ( F1 ). The Cell Operation menu is displayed in the center of the screen.
  5. Use the knob to scroll down the menu options and find the Dual Transfer Mode parameter.
  6. Press Close Menu (F6).
  7. Press Return (F6).
  8. Press Operating Mode ( F1 ) and select an option that supports Dual Transfer Mode from the Operating Mode menu. See Operating Considerations to find which Operating Modes support Dual Transfer Mode.

Enable/Disable Enhanced Dual Transfer Mode

This procedure details how to enable/disable Enhanced Dual Transfer Mode. The test set's default setting for this parameter is OFF . See Enhanced DTM Enable for more information.

  1. Press Call Setup .
  2. Press Operating Mode ( F1 ) and select Cell Off from the Operating Mode menu.
  3. Press Cell Info ( F6 ).
  4. Press Cell Operation ( F1 ). The Cell Operation menu is displayed in the center of the screen.
  5. Use the knob to scroll down the menu options and find the Dual Transfer Mode (Enhanced) parameter.
  6. Press Close Menu (F6).
  7. Press Return (F6).
  8. Press Operating Mode ( F1 ) and select an option that supports Dual Transfer Mode from the Operating Mode menu. See Operating Considerations to find which Operating Modes support Dual Transfer Mode.

Configure DTM Measured Burst

This procedure details how to configure DTM Measured Burst. See DTM Measured Burst for more information.

  1. Press Call Setup .
  2. Press PDTCH Parameters ( F9 ).
  3. Press More on the bottom right side of the screen until menu 2 of 3 of PDTCH Parms is displayed.
  4. Press Measured Burst ( F8 ). Use the knob or the number key pad to highlight and change DTM Measured Burst .

Configure DTM Manual Unassigned USF

This procedure details how to configure DTM Manual Unassigned USF. See DTM Manual Unassigned USF for more information.

  1. Press Call Setup .
  3. Press More on the bottom left side of the screen until menu 2 of 3 of Control is displayed.
  4. Press Protocol Control ( F4 ).
  5. Press RLC/MAC ( F2 ).
  6. Press MAC Control ( F2 ). Use the knob or the number key pad to highlight and change the Assigned USF Allocation to a value less than 100% . Change Unassigned USF Mode to Manual USF .
  7. Use the knob or the number key pad to highlight and change DTM Manual Unassigned USF.

Configure DTM Multislot Configuration

This procedure details how to configure immediate and deferred DTM Multislot Configuration. See DTM Multislot Configuration for more information.

Immediate DTM Multislot Configuration

  1. Press Call Setup .
  2. Press PDTCH Parameters ( F9 ).
  3. Press More on the bottom right side of the screen until menu 3 of 3 of PDTCH Parms is displayed.
  4. Press DTM Parameters ( F7 ). Use the knob or the number key pad to highlight and change DTM Multislot Configuration .

Deferred DTM Multislot Configuration

  1. Press Call Setup .
  2. Press Handover Parameters ( F10 ).
  3. Press DTM Handover Setup ( F9 ).
  4. Use the knob or the number key pad to highlight and change DTM Multislot Configuration.

Configure DTM Traffic Band

This procedure details how to configure immediate and deferred DTM Traffic Band. See DTM Traffic Band for more information.

Immediate DTM Traffic Band

  1. Press Call Setup .
  2. Press PDTCH Parameters ( F9 ).
  3. Press More on the bottom right side of the screen until menu 3 of 3 of PDTCH Parms is displayed.
  4. Press DTM Parameters ( F7 ). Use the knob or the number key pad to highlight and change Traffic Band .

Deferred DTM Traffic Band

  1. Press Call Setup .
  2. Press Handover Parameters ( F10 ).
  3. Press DTM Handover Setup ( F9 ).
  4. Use the knob or the number key pad to highlight and change Traffic Band.

Configure DTM Traffic Channel

This procedure details how to configure the immediate and deferred DTM Traffic Channel. See DTM Traffic Channel for more information.

Immediate DTM Traffic Channel

  1. Press Call Setup .
  2. Press PDTCH Parameters ( F9 ).
  3. Press More on the bottom right side of the screen until menu 3 of 3 of PDTCH Parms is displayed.
  4. Press DTM Parameters ( F7 ). Use the knob or the number key pad to highlight and change Traffic Channel .

Deferred DTM Traffic Channel

  1. Press Call Setup .
  2. Press Handover Parameters ( F10 ).
  3. Press DTM Handover Setup ( F9 ).
  4. Use the knob or the number key pad to highlight and change Traffic Channel.

Configure DTM Frequency Hopping

This procedure details how to configure immediate and deferred DTM Frequency Hopping. See DTM Frequency Hopping for more information.

Immediate DTM Frequency Hopping

  1. Press Call Setup .
  2. Press PDTCH Parameters ( F9 ).
  3. Press More on the bottom right side of the screen until menu 3 of 3 of PDTCH Parms is displayed.
  4. Press DTM Parameters ( F7 ). Use the knob or the number key pad to highlight and change Frequency Hopping .

Deferred DTM Frequency Hopping

  1. Press Call Setup .
  2. Press Handover Parameters ( F10 ).
  3. Press DTM Handover Setup ( F9 ).
  4. Use the knob or the number key pad to highlight and change Frequency Hopping.

Configure DTM Coding Scheme

This procedure details how to configure immediate and deferred DTM Coding Schemes. See DTM Coding Schemes for more information.

Immediate DTM Coding Scheme

  1. Press Call Setup .
  2. Press PDTCH Parameters ( F9 ).
  3. Press Coding Scheme ( F11 ). Use the knob or the number key pad to highlight and change DTM Coding Scheme .

Deferred DTM Coding Scheme

  1. Press Call Setup .
  2. Press Handover Parameters ( F10 ).
  3. Press DTM Handover Setup ( F9 ).
  4. Use the knob or the number key pad to highlight and change Coding Scheme.

Configure DTM MS Tx Levels

This procedure details how to configure immediate and deferred DTM MS Tx Level for the individual bursts of the DTM connection. See DTM MS Tx Levels for more information.

Immediate DTM MS Tx Levels

  1. Press Call Setup .
  2. Press PDTCH Parameters ( F9 ).
  3. Press More on the bottom right side of the screen until menu 3 of 3 of PDTCH Parms is displayed.
  4. Press DTM Parameters ( F7 ). Use the knob or the number key pad to highlight and change MS TX Level for the individual bursts.

Deferred DTM MS Tx Levels

  1. Press Call Setup .
  2. Press Handover Parameters ( F10 ).
  3. Press DTM Handover Setup ( F9 ).
  4. Use the knob or the number key pad to highlight and change MS Tx Level for the individual bursts.

Configure DTM Power Reduction Reference

This procedure details how to configure immediate and deferred DTM Power Reduction Reference. See DTM Power Reduction Reference for more information.

Immediate DTM Power Reduction Reference

  1. Press Call Setup .
  2. Press PDTCH Parameters ( F9 ).
  3. Press Downlink Traffic Power( F7 ). Use the knob or the number key pad to highlight and change DTM P0 (Power Reduction Reference) .

Deferred DTM Power Reduction Reference

  1. Press Call Setup .
  2. Press Handover Parameters ( F10 ).
  3. Press DTM Handover Setup ( F9 ).
  4. Use the knob or the number key pad to highlight and change P0 (Power Reduction Reference).

Configure DTM Uplink State Flag

This procedure details how to configure immediate and deferred DTM Uplink State Flag. See DTM Uplink State Flag for more information.

Immediate DTM Uplink State Flag

  1. Press Call Setup .
  3. Press More on the bottom left side of the screen until menu 2 of 3 of Control is displayed.
  4. Press Protocol Control ( F4 ).
  5. Press RLC/MAC ( F2 ).
  6. Press MAC Control ( F2 ). Use the knob or the number key pad to highlight and change DTM Uplink State Flag (USF) .

Deferred DTM Uplink State Flag

  1. Press Call Setup .
  2. Press Handover Parameters ( F10 ).
  3. Press DTM Handover Setup ( F9 ).
  4. Use the knob or the number key pad to highlight and change Uplink State Flag.

Configure DTM CS Timeslot Position

The following procedures detail how to choose both immediate and deferred DTM CS Timeslot the test set will use. See DTM CS Timeslot Position for more information.

NOTE: You can only configure DTM CS Timeslot parameter when Multislot Config parameter setting is supported by DTM. For the list of multislot configurations that DTM supports, see DTM Multislot Configuration .

Immediate DTM CS Timeslot

  1. Press Call Setup .
  2. Press PDTCH Parameters ( F9 ).
  3. Press More on the bottom right side of the screen until menu 3 of 3 of PDTCH Parms is displayed.
  4. Press DTM Parameters ( F7 ). Use the knob or the number key pad to highlight and change DTM CS Timeslot.

Deferred DTM CS Timeslot

  1. Press Call Setup .
  2. Press Handover Parameters ( F10 ).
  3. Press DTM Handover Setup ( F9 ).
  4. Use the knob or the number key pad to highlight and change DTM CS Timeslot.

Configure DTM CS Half Rate Sub Channel

The following procedures detail how to choose both immediate and deferred DTM CS Timeslot the test set will use. See DTM CS Half Rate Sub Channel for more information.

Immediate DTM CS Half Rate Sub Channel

  1. Press Call Setup .
  2. Press PDTCH Parameters ( F9 ).
  3. Press More on the bottom right side of the screen until menu 3 of 3 of PDTCH Parms is displayed.
  4. Press DTM Parameters ( F7 ). Use the knob or the number key pad to highlight and change DTM CS Half Rate Sub Channel.

Deferred DTM Half Rate Sub Channel

  1. Press Call Setup .
  2. Press Handover Parameters ( F10 ).
  3. Press DTM Handover Setup ( F9 ).
  4. Use the knob or the number key pad to highlight and change DTM CS Half Rate Sub Channel.

Configure DTM CS MS TX Level

This procedure details how to configure DTM CS MS TX Level.

Immediate DTM CS MS TX Level

  1. Press Call Setup .
  2. Press PDTCH Parameters ( F9 ).
  3. Press More on the bottom right side of the screen until menu 3 of 3 of PDTCH Parms is displayed.
  4. Press DTM Parameters ( F7 ). Use the knob or the number key pad to highlight and change DTM CS MS TX Level .

Deferred DTM CS MS TX Level

  1. Press Call Setup .
  2. Press Handover Parameters ( F10 ).
  3. Press DTM Handover Setup ( F9 ).
  4. Use the knob or the number key pad to highlight and change DTM CS MS TX Level.

Configure Specific Features that Dual Transfer Mode Adds/Changes

The test set's display is slightly altered while the Dual Transfer Mode feature is enabled. The following procedures assumes that DTM is enabled and the Operating Mode is set to Active Cell (serving cell GPRS or EGPRS).

Choose the Connection Type

Dual Transfer Mode allows a circuit switched voice connection to be established in any connection type, thus the connection type only effects the data connection.

  1. Press CALL SETUP.
  2. Press Data Conn Type ( F2 ) and choose the type of data connection.

Establish a Mobile Terminated Data Connection

  1. Press CALL SETUP.
  2. Press Data Conn Type ( F2 ) on screen 1 of 2 of the Control menu.
  3. Press Start Data Connection ( F4 ).

Configure the Paging IMSI

  1. Press CALL SETUP .
  2. Press Paging IMSI (F5) on screen 1 of 3 of the Control menu.

Configure and Execute a Handover

The Handover Parameters are accessed from the Call Parms menu.

  1. Press CALL SETUP .
  2. Press Handover Parameters ( F10 ).
  3. Press GSM Handover Setup ( F7 ) or EGPRS Handover Setup ( F8 ).
  4. Set the parameters in the Handover Setup menu.
  5. Press Handover Execute (F5).

Establish a Dual Transfer Mode Connection

This procedure details how to establish an active DTM connection. This procedure assumes that the BCH parameter for band is set up correctly for your mobile station and that the appropriate RF IN/OUT Amplitude Offsets have been set to offset loss between the mobile station and the test set.

  1. Enable/Disable Dual Transfer Mode
  2. Configure the DTM parameters (including the Operating Mode and Data Conn Type ). See Configurable Parameters .
  3. Establish a Call
  4. Establish a packet switched data connection. See How Do I Start a Data Connection? for instructions on how to start a mobile terminated data connection.

Analyze the Dual Transfer Mode Properties

This section assumes that Dual Transfer Mode is enabled.

Supported DTM Class

  1. Press Call Setup .
  2. Observe the DUT Class Information section of the Call Setup screen. The DTM Class GPRS and the DTM Class EGPRS reports indicate which class the DUT supports. Note: The +HR string appears to the right of the class information if the DUT supports Half Rate Dual Transfer Mode Operation. Conversely the +HR string will not be displayed if the DUT does not support Half Rate Dual Transfer Mode operation.

Connection Status while in Dual Transfer Mode

  1. You can observe the connection status in the bottom center portion of the screen. The connection status is displayed in the following form: circuit switched voice connection `/' packet switched data connection.

    If no valid circuit switched voice connection is established, the connection status only displays the packet switched data connection status, as if Dual Transfer Mode were not enabled.

    The mobile station must support Class A operation in order to establish a DTM connection. If the mobile station does not support Class A operation, GPRS Suspended connection status is displayed. The Suspended packet switched data connection status indicates that the packet switched connection has been suspended in order to transfer data on the circuit switched connection rather than to establish a DTM connection.

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