DocsEqualizerData |   | Textual Convention |
Status |   | current |
Description |   | This data type represents the equalizer data as measured at the receiver interface. The format of the equalizer follows the structure of the Transmit Equalization Adjust RNG-RSP TLV of DOCSIS RFI v2.0 : 1 byte Main tap location 1..(n + m) 1 byte Number of forward taps per symbol 1 byte Number of forward taps: n 1 byte Number of reverse taps: m Following are the equalizer coefficients: First, forward taps coefficients: 2 bytes F1 (real), 2 bytes F1 (imag) ... 2 bytes Fn (real), 2 bytes Fn (imag) Then, reverse taps coefficients: 2 bytes D1 (real), 2 bytes D1 (imag) ... 2 bytes Dm (real), 2 bytes Dm (imag) The equalizer coefficients are considered signed 16-bit integers in the range from -32768 (0x8000) to 32767 (0x7FFF). DOCSIS specifications require up to a maximum of 64 equalizer taps (n + m); therefore, this object size can get up 260 bytes (4 + 4x64). The minimum object size (other than zero) for a t-spaced tap with a minimum of 8 symbols will be 36 (4 + 4x8). |
Reference |   | Data-Over-Cable Service Interface Specifications: Radio Frequency Interface Specification SP-RFIv2.0-I10-051209, Figure 8-23. |
Syntax |   | OCTET STRING ( .. ) |