Engee documentation

Perfect Timing Estimate

Perfect Timing Estimator.

perfect timing estimate

Description

The Perfect Timing Estimate block performs timing estimation by correlating the reference signals with the input waveform. The block outputs a matrix shifted by the value of OFFSET. `OFFSET' is a scalar value indicating the estimated timing offset, which is an integer number of samples relative to the first sample of the input signal.

Ports

Input

# Waveform — input signal
`complex matrix

Details

The input signal in the form of a complex matrix.

Data types

ComplexF64.

Complex numbers support

Yes

Output

# OUT_1 — offset output signal
`complex matrix

Details

A biased output signal in the form of a complex matrix.

Data types

ComplexF64.

Complex numbers support

Yes

Parameters

Carrier

# NCellID — physical layer cell identifier
Real number

Details

A physical layer cell identifier specified as an integer from 0 to 1007.

Default value

1

Program usage name

ncellid

Tunable

No

Evaluatable

Yes

# NSizeGrid — number of resource blocks in the operator’s resource grid
Real number

Details

The number of resource blocks in the operator’s resource grid, specified as an integer from 1 to 275.

The by default value of 51 corresponds to the maximum number of RBSs for a 10 MHz carrier and a 15 kHz SCS.

Default value

51

Program usage name

nsizegrid

Tunable

No

Evaluatable

Yes

# Subcarrier spacing (kHz) — subcarrier spacing, in kHz
15 | 30 | 60 | 120

Details

Subcarrier spacing, in kHz, for all channels and carrier reference signals. Specified as 15, 30, 60 or 120.

Values

15 | 30 | 60 | 120

Default value

15

Program usage name

subcarrierspacingcommon

Tunable

No

Evaluatable

No

# CyclicPrefix — cyclic prefix length
Normal | Extended

Details

The length of the cyclic prefix. Options to choose from:

  • Normal - Use this value to specify a normal cyclic prefix. This parameter corresponds to 14 OFDM characters in a slot.

  • Extended - use this value to specify an extended cyclic prefix. This parameter corresponds to 12 OFDM characters in the slot. For the numbering specified in section 4.2 of TS 38.211, the extended cyclic prefix length applies only to the 60 kHz subcarrier interval.

Values

Normal | Extended

Default value

Normal

Program usage name

cyclicprefix

Tunable

No

Evaluatable

No