Last updated: September 1, 2009
This section is not applicable to GSM.
This section contains the following:
The GPRS and EGPRS packet data traffic channel parameters are configured using the following call processing subsystem commands. Click on the link to the GPIB command to find more information about the parameter.
For a complete list of GPIB commands in the call processing subsystem, refer to CALL Subsystem .
The following parameters are accessible on the front panel under the PDTCH Parameters (F9) on the Call Setup screen. See How Do I Configure the PDTCH Parameters? for more information.
This section contains two procedures. The first procedure explains how to configure the immediate PDTCH parameters. The second procedure explains how to set the deferred PDTCH parameter. See Using Deferred Parameters for more information on deferred parameters.
Operating Mode
(
F1
) and select
Active Cell (GPRS, or EGPRS)
.
PDTCH Parameters
(
F9
) from the
Call Parms
menu.
PDTCH Parms
(
2 of 3
) menu.
Multislot Config
(
F7
), this displays the Multislot Config menu.
Operating Mode
(
F1
) and select
Active Cell (GPRS, or EGPRS)
.
Handover Parameters
(
F10
) from the
Call Parms
menu.
GPRS Handover Setup
(
F8
) from the
Handover
menu. This displays the GPRS Handover Setup menu.
Multislot Config
. Deferred parameters allow you to set up multiple parameters without implicit over-the-air signalling taking place. Using deferred parameters offers the following benefits:
As shown in the table of configurable parameters, the command to configure the multislot configuration is CALL:(PDTCH|PDTChannel):MSLot:CONFig . The effect this command has on the number of uplink and downlink timeslots depends on the Connection Type (see CALL:FUNCtion:CONNection:TYPE ).
The actual timeslots used in each configuration are fixed as in the table below.
| Multislot Configuration | Downlink Timeslots Used | Uplink Timeslots Used |
|---|---|---|
| D1U1 | 3 | 3 |
| D1U2 | 3 | 3,4 |
| D1U3 | 3 | 3,4,5 |
| D1U4 | 3 | 3,4,5,6 |
| D2U1 | 3,4 | 4 |
| D2U2 | 3,4 | 3,4 |
| D2U3 | 3,4 | 3,4,5 |
| D2U4 | 3,4 | 3,4,5,6 |
| D3U1 | 3,4,5 | 4 |
| D3U2 | 3,4,5 | 4,5 |
| D3U3 | 3,4,5 | 4,5,6 |
| D4U1 | 3,4,5,6 | 5 |
| D4U2 | 3,4,5,6 | 5,6 |
| D5U1 | 2,3,4,5,6 | 5 |
| Custom | You can position the timeslots flexibly. See Flexible Timeslot | You can position the timeslots flexibly. See Flexible Timeslot |
Note: When a multislot configuration change is executed, all measurements will be stopped before the change is made, and re-started after the change has taken effect.
The default Medium Access Mode for multislot configurations that have three or more uplinks is Extended Dynamic Allocation .
| NOTE |
GPRS Multislot Classes
The test set supports GPRS mobile stations with multislot class 1-12, multislot class 30-34 and multislot class40-45. The following multislot configurations are supported (indicated as Downlink x Uplink): 1x1, 1x2, 1x3, 1x4, 1x5, 1x6, 2x1, 2x2, 2x3, 2x4, 2x5, 3x1, 3x2, 3x3, 3x4, 4x1, 4x2, 4x3, 5x1, 5x2 and 6x1. The test set's operating mode must be Active Cell ( Serving Cell GPRS), GPRS BCH+PDTCH or GPRS BCH+TCH+PDTCH for all the GPRS multislot configurations to be supported.
When the connection type is BLER, the only multislot configurations available are those with the number of downlinks greater than or equal to the number of uplinks in the multislot configuration.
EGPRS Multislot Classes
The test set with the Lab Application license supports EGPRS mobile stations with multislot class 1-12, multislot class 30-34 and multislot class40-45. The following multislot configurations are supported (indicated as Downlink x Uplink): 1x1, 1x2, 1x3, 1x4, 1x5, 1x6, 2x1, 2x2, 2x3, 2x4, 2x5, 3x1, 3x2, 3x3, 3x4, 4x1, 4x2, 4x3, 5x1, 5x2 and 6x1.
See EGPRS Data Rate Configurations for details on which multislot configurations are supported for EGPRS mobile stations and other operating considerations.
The immediate multislot configuration parameter is available in all the operating modes except Cell Off and CW. Note that although you can configure the multislot configuration when the operating mode is set to GPRS BCH and EGPRS BCH, these settings do not effect the test set's operation.
When the connection type is set to BLER or SRB Loopback, the multislot configuration cannot have more uplinks than downlinks.
When configuring the base station emulator you must configure the broadcast channel (see CALL:BCHannel ) and the packet data traffic channel (PDTCH). There are a number of parameters for the BCH and the PDTCH that can be configured; however, the test set's default parameters should allow a properly functioning GPRS or EGPRS mobile station to successfully establish a data connection under most circumstances.
The PDTCH (ARFCN) is a frequency banded parameter (see Frequency Banded Parameters ).
Configuring the Broadcast Channel (BCH)
Configuring Mobile Station Operating Parameters
Packet Data Traffic Channel Band Parameter