Last updated: 2014-11-28
Channel Configurations in Active Cell Operating Mode
HSDPA Channel Configuration Information (only applicable to the feature-licensed test application)
Channel Configurations in TD-SCDMA Test Operating Mode
For all the supported downlink and uplink channels in Active Cell operating mode, see Active Cell Operating Mode.
The 8-bit digits determines which SYNC_UL codes in the SYNC_UL code group (once the setting of Scrambling Code is selected, the code group is determined, see Scrambling Code) can be used by the UE. Each bit indicates the availability of a SYNC_UL code. The value 1 of a bit indicates that the corresponding SYNC_UL code can be used. The value 0 of a bit indicates that the corresponding SYNC_UL code can not be used. For example, if the Scrambling Code is set to '4', according to the Table 1: Relationships between the synchronization codes, the available SYNC_UL ID is from 8 to 15. Setting the Sync UL Code Bitmap to "00000001" means that the SYNC_UL ID 8 can be used by the UE.
This parameter is sent in SIB 5 on the BCCH. In the Active Cell operating mode, this setting can only be changed when the call status is Idle.
GPIB Commands: CALL:UPLink:UPPChannel:SYNChronize:CBITmap
This setting specifies the maximum number of SYNC_UL transmissions in a power ramping sequence during a synchronisation attempt of the UE.
This parameter is sent in SIB 5 on the BCCH. In the Active Cell operating mode, this setting can only be changed when the call status is Idle.
GPIB Commands: CALL:UPLink:UPPChannel:SYNChronize:TRANsmission[:MAXimum]
This setting specifies the maximum number of synchronisation attempts for one random access procedure.
This parameter is sent in SIB 5 on the BCCH. In the Active Cell operating mode, this setting can only be changed when the call status is Idle.
GPIB Commands: CALL:UPLink:UPPChannel:SYNChronize:ANUMber[:MAXimum]
The test set supports the following midamble allocation schemes:
Default - The downlink midamble is allocated by layer 1 depending on the associated channelisation code. The fixed association between midambles and channelisation codes is given in 3GPP TS 22.221 Annex AA.2.
Common - The midamble for the DL is allocated by layer 1 depending on the number of channelisation codes currently being present in the DL time slot.
GPIB Commands: CALL:DOWNlink:DPCHannel:MIDamble:MODE
This setting specifies the midamble configuration (K) of TD-SCDMA DPCH when TD-SCDMA DL Dpchannel Midamble Mode is set to Default (non-HSPA channel type).
This setting can not be changed in Active Cell operating mode or the Call Status is not Idle.
GPIB Commands: CALL:DOWNlink:DPCHannel:MIDamble:DEFault:CONFig
When the Operating Mode is Active Cell, the TD-SCDMA Downlink and Uplink channels are configured as shown in the Channel Configurations window.
Click on the red circle for more information.
Note 1: DPCHo is OCNS channels which simulates DPCHs for other users in the same time slot of DPCH. See DPCH and DPCHo Configuration for Different Channel Types.
DPCH and DPCHo Configuration for Different Channel Types
|
|
Standalone SRB on DPCH |
AMR Voice DPCH |
12.2 k RMC DPCH |
12.2 k RMC DPCHo |
64 k RMC DPCH |
64 k RMC DPCHo |
144 k RMC DPCH |
144 k RMC DPCHo |
384 k RMC DPCH |
384 k RMC DPCHo |
|
Time Slot |
4 |
4 |
4 |
4 |
4 |
4 |
4,5 |
4,5 |
3,4,5,6 |
3,4,5,6 |
|
Channelization Codes |
16_1, 16_2 |
16_1, 16_2 |
16_1, 16_2 |
16_3 to 16_10 |
16_1 to 16_8 |
16_9 to 16_10 |
16_1 to 16_8 |
16_9 to 16_10 |
16_1 to 16_9 |
16_10 |
|
Midamble Allocation Mode |
||||||||||
|
Midamble Configuration for default mode |
Settable |
Settable |
Settable |
Settable |
Settable |
Settable |
Settable |
Settable |
Settable |
Settable |
|
Midamble Configuration for common mode |
K = 2 |
K = 2 |
K = 2 |
K = 2 |
K = 2 |
K = 2 |
K = 2 |
K = 2 |
K = 2 |
K = 2 |
|
Period/Length/Offset |
1/0/0 |
1/0/0 |
1/0/0 |
1/0/0 |
1/0/0 |
1/0/0 |
1/0/0 |
1/0/0 |
1/0/0 |
1/0/0 |
This section is only applicable to the feature-licensed test application.
When an HSDPA connection is successfully established (see Establish an HSDPA Connection ), the HSDPA Downlink/Uplink channels are configured as shown in the HSDPA Channel Configurations window.
Click on the red circle for more information.
HSDPA Channel Configuration - RMC and VRC
Note 2: The downlink HS-PDSCH configuration varies with RMC Type or VRC.
HSDPA Channel Configuration - HS-SCCH Detection
For all the supported downlink and uplink channels in TD-SCDMA Test Operating Mode, see TD-SCDMA Test Operating Mode.
When the Operating Mode is TD-SCDMA Test, the TD-SCDMA Downlink/Uplink channels are configured as shown in the Channel Configurations window.
Click on the red circle for more information.
Note 3: DPCHo is OCNS channels which simulates DPCHs for other users in the same time slot of DPCH.
When the Operating mode is TD-SCDMA Test, there are two DCHs expected in the uplink signal from the UE: DCCH’s and the RMC DTCH. The DPCH must be configured according to the Channel Type.
The test set expects only one midamble code for all code channels of UL DPCH. The midamble code used by a channel is derived from the periodic basic midamble sequence with an offset. The offset is derived from Midamble Configuration K and Midamble shift (k = 1, &, K) (Please refer to 3GPP standard TS25.221 for more information).
You can set the midamble for uplink channels by setting the midamble configuration and midamble shift for UL DPCH, and the UE must be configured to the same midamble code as determined by Uplink DPCH Midamble Configuration and Uplink DPCH Midamble Shift.
GPIB Commands: CALL:TDTest:UPLink:DPCHannel:MCONfig, CALL:TDTest:UPLink:DPCHannel:MSHift
OCNS is used to simulate additional users on the downlink. OCNS is automatically enabled when the sum of the levels of all the enabled downlink physical channels in a specific time slot is less than the Cell Power setting.