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WCDMA3G_BS_FixedRateSrc



Description: Downlink signal source for measurement channels
Library: 3GPPFDD 10-99, Base Station
Class: SDFWCDMA3G_BS_FixedRateSrc

Parameters

Name

Description

Default

Unit

Type

Range

DataType

measurement channel type: DTCH_12_2_kbps, DTCH_64_kbps, DTCH_144_kbps, DTCH_384_kbps

DTCH_12_2_kbps

 

enum

 

ScramblingCodeIndex

scrambling code index

0

 

int

[0:8191]

DPCHGainFactor

gain factor for DPCH

1.0

 

real

[0.0, ∞)

PCCPCHGainFactor

gain factor for PCCPCH

1.0

 

real

[0.0, ∞)

SCHGainFactor

gain factor for SCH

1.0

 

real

[0.0, ∞)

CPICHGainFactor

gain factor for CPICH

1.0

 

real

[0.0, ∞)

OCNS_UserNum

simulated user number

4

 

int

[0:4]

SF1

spreading factor for user1: SF1_4 , SF1_8 , SF1_16, SF1_32, SF1_64, SF1_128, SF1_256, SF1_512

SF1_256

 

enum

 

SF2

spreading factor for user2: SF2_4 , SF2_8 , SF2_16, SF2_32, SF2_64, SF2_128, SF2_256, SF2_512

SF2_256

 

enum

 

SF3

spreading factor for user3: SF3_4 , SF3_8 , SF3_16, SF3_32, SF3_64, SF3_128, SF3_256, SF3_512

SF3_256

 

enum

 

SF4

spreading factor for user4: SF4_4 , SF4_8 , SF4_16, SF4_32, SF4_64, SF4_128, SF4_256, SF4_512

SF4_256

 

enum

 

OCNS_GainFactors

gain factors for OCNS users

1.0 1.0 1.0 1.0

 

real array

[0.0, ∞)

Pin Outputs

Pin

Name

Description

Signal Type

1

Out

output data

complex

2

DPCHOut

output DPCH data

complex

3

TFMax

Ouput TFMax

int

4

Ref_DataSrc1

reference data bits from source1

int

5

Ref_DataSrc2

reference data bits from source2

int

6

CoderOutput1

coder output data bits from TrCH1

int

7

CoderOutput2

Coder output data bits from TrCH2

int

8

DPCHData

output bits for DPCH data fields

int

Notes/Equations
  1. This subnetwork model is used to provide signal source for the reference measurement channels 12.2/64/144/384 kbps [1] of the base station in a downlink.
    The schematic for this subnetwork is shown in the following figure. It includes the data source for measurement transport channel, channel coding, transport channel multiplexing, physical channel mapping, spreading and scrambling for DPCH (dedicated physical channel), common control channels including PCCPCH (primary common control channel), SCH (synchronization channel, primary and secondary), CPICH (common pilot channel), and the OCNS (orthogonal channel noise simulator) that can simulate up to four users (orthogonal code channels).
    This subnetwork model outputs the combined complex symbols from pin out and the DPCH only complex symbol from DPCHOut in chips, and outputs TFMax once every 10 msec. The reference data source is output from Ref_DataSrc1/Ref_DataSrc2 every transport block according to the TTI setting of each transport channel. The results for channel coding are output from CoderOutput1/ CoderOutput2 for measurement of BER (bit error rate) before channel coding in coding frames or blocks. The DPCH data bits are output from DPCHData for physical channel BER measurement in radio frames (15 slots).

    WCDMA3G_BS_FixedRateSrc Schematic

References
  1. 3GPP Technical Specification TS 25.101 V3.1.0 "UE Radio transmission and Reception FDD," December 1999.
  2. 3GPP Technical Specification TS 34.121 V3.0.0 "Terminal conformance Specification: Radio transmission and reception (FDD)," March 2000.
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