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3GPPFDD_TestModel6

Description: Signal source to simulate test model 6
Library: 3GPPFDD, Base Station
Parameters

Name

Description

Default

Type

Range

ScrambleCode

index of scramble code

0

int

[0,512] for downlink;<br>[0, 16777215] for uplink

ScrambleOffset

scramble code offset

0

int

[0,15]

ScrambleType

scramble code type: normal, right, left

normal

enum

 

SCCPCH_SltFmt

SCCPCH slot format: SF0, SF1, SF2, SF3

SF0

enum

 

OutputMode

output from 1st frame or 2nd frame: Ramp, Stable

Ramp

enum

 

Seed

PN seed offset of DPCH

0

int

[0,∞)

Pin Outputs

Pin

Name

Description

Signal Type

1

out

output data

complex

Notes/Equations
  1. This model is the base station test model 6 as defined in [3].
  2. Each firing, a slot of complex chips is output that consists of 2560 spread and scrambled data.
  3. Test model 6 consists of PCCPCH, SCH, CPICH, PICH, SCCPCH, DPCH, HS_SCCH, and HS_PDSCH channels. Channelization codes, time offset, and power levels of each channel are defined in [3].
  4. DPCH channels are set to 30, with 2 HS_SCCH.
  5. ScrambleCode i, ScrambleOffset k, and ScrambleType parameters determine the scrambling code n as follows:

    n = (16 ×  i ) + k + m

    • If ScrambleType is normal , m = 0
    • If ScrambleType is right , m = 16384
    • If ScrambleType is left , m = 8192
  6. The DPDCH bits of the DPCHs are filled with PN9 sequences. To ensure non-correlation of the PN9 sequences, each DPDCH uses a unique code Sc as the seed for the PN9 sequence at the start of each frame. The code is determined by the channelization code Cch of the DPCH and a seed offset So as:

    Sc = Cch + So

  7. The seed offset is set by the Seed parameter to ensure non-correlation of the PN9 sequences when more than one test model is used.
  8. There are 2560 bits per slot in a 64 QAM-modulated HS-PDSCH. The aggregate 15 × 640 = 9600 bits per frame are filled with repetitions of a PN9 sequence generated using the primitive trinomial. To ensure non-correlation of the PN9 sequences, each HS-PDSCH uses its channelization code as the seed for the PN sequence at the start of each frame. The generator is seeded so that the sequence begins with the channelization code starting from the LSB.
  9. There are 40 bits per time slot in a HS-SCCH. The aggregate 15 × 40 = 600 bits per frame are filled with repetitions of a PN9 sequence generated using the primitive trinomial. The HS-SCCH channelization code is used as the seed for the PN sequence at the start of each frame. The generator is seeded so that the sequence begins with the channelization code starting from the LSB.

References
  1. 3GPP Technical Specification TS 25.211 V7.4.0, "Physical channels and mapping of transport channels onto physical channels (FDD)," Dec. 2007, Release 7.

    http://www.3gpp.org/ftp/Specs/2007-12/Rel-7/25_series/25211-740.zip

  2. 3GPP Technical Specification TS 25.213 V7.4.0, "Spreading and modulation (FDD)," Dec. 2007, Release 7.

    http://www.3gpp.org/ftp/Specs/2007-12/Rel-7/25_series/25213-740.zip

  3. 3GPP Technical Specification TS 25.141 V7.1.0, "Base station conformance testing (FDD)," Dec. 2007, Release 7.

    http://www.3gpp.org/ftp/Specs/2007-12/Rel-7/25_series/25141-7a0.zip

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