Downlink Physical Signals

Generate narrowband synchronization signals (NPSS, NRS, NSSS)

Synchronize cells by using the narrowband primary synchronization signals (NPSSs) and narrowband secondary synchronization signals (NSSSs). Estimate the downlink channel by using the narrowband reference signals (NRSs).

Functions

`lteNPSS`	Generate NPSS symbols for subframe
`lteNPSSIndices`	Generate NPSS RE indices for subframe
`lteNRS`	Generate cell-specific NRS symbols
`lteNRSIndices`	NRS resource element indices
`lteNSSS`	Generate NSSS symbols for subframe
`lteNSSSIndices`	Generate NSSS RE indices for subframe