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WCDMA3G_BroadcastCHSrc


Description: Broadcast channel fixed-rate data source
Library: 3GPPFDD 10-99, Measurement
Class: SDFWCDMA3G_BroadcastCHSrc

Parameters

Name

Description

Default

Type

InfoType

broadcast channel type: BCH_11_1_kbps, BCH_12_3_kbps

BCH_11_1_kbps

enum

TTI

transmission time interval: TTI_10ms, TTI_20ms, TTI_40ms, TTI_80ms

TTI_10ms

enum

Pin Outputs

Pin

Name

Description

Signal Type

1

TFMax

maximum transport format for current service

int

2

out

information data

int

3

TF

current transport format for current service

int

Notes/Equations
  1. This model is used to implement fixed-rate data source for broadcast channels. Random data of one transport block is output at each transport time interval; at the same time, the value of current transport format and maximum transport format are output based on TTI. The number of tokens output are listed in the following table.
    Output Tokens
    InfoType TTI Out Tokens TF, TFMax Tokens
    BCH_11_1_kbps 10ms 111 1
    20ms 222 2
    40ms 444 4
    80ms 888 8
    BCH_12_3_kbps 10ms 123 1
    20ms 246 2
    40ms 492 4
    80ms 984 8
  2. Based on InfoType and TTI, the maximum data length and transport format are calculated.
    Within one TTI, the current transport format and valid length of output data are determined according to the following table.
    Within one transport block, output 0 or 1 randomly and output TF and TFMax, respectively.
    Output TF, TFMax and Valid Data Length
    InfoType TTI TFMax Possible TF Valid Data Length
    BCH_11_1_kbps 10ms 0 0 111
    20ms 1 1 222
    40ms 2 2 444
    80ms 3 3 888
    BCH_12_3_kbps 10ms 4 4 123
    20ms 5 5 246
    40ms 6 6 492
    80ms 7 7 984

References
  1. 3GPP TS25.302 V3.1.0, "Services Provided by the Physical Layer," October 1999.
  2. 3GPP TS25.101 V3.0.0, "UE Radio Transmission and Reception (FDD)," October 1999.
  3. 3GPP TS25.104 V3.0.0, "UTRA(BS) FDD: Transmission and Reception," October 1999.
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