Accelercom launches PUSCH for better 5G

New channel coding capabilities targeted at low latency, high performance 5G networks.

Accelercom has launched a “complete high-performance 5G NR PUSCH (Physical Uplink Shared Channel) Decoder and PDSCH (Physical Downlink Shared Channel) Encoder”.

Accelercom designs channel coding (Forward Error Correction) software that radio chip and software designers can use to deliver more efficient networks. By using more sophisticated channel encoding and decoding, more “errors” introduced by changing wireless conditions can be corrected, so that the data sent across a wireless link matches as closely as possible to the data that was transmitted. If the FEC/channel coding contains fewer uncorrectable errors, and can perform at higher levels, then you get more data through, and you get better performing networks.

5G channel coding is based on Polar Codes, and on LPDC, a coding scheme that is intended to enable lower latency operation. Accelercom’s newest launch adds what the company describes as “best-in-class LDPC decoder performance.”

The PUSCH Decoder integrates additional 3GPP physical layer functions together with LDPC decoders to create an IP package that can be integrated and optimised for use in custom silicon (ASIC) and FPGAs.

The new blocks of IP are implementations of 3GPP specifications that complete the link between the LDPC decoder and the MIMO detector. They are:

  • gNodeB uplink stack (PUSCH Decoder): LDPC decoder with transport block wrapper, polar decoder, demultiplexer, descrambler and QAM demodulator
  • gNodeB downlink stack (PDSCH Encoder): LDPC encoder with transport block wrapper, scrambler, and QAM modulator

“Spectrum is a scarce resource, and is the key asset owned by mobile operators, so it is critical that they maximise its use – every dB counts,” said Robert Barnes, VP Sales & Marketing of AccelerComm. “This product builds on the existing AccelerComm IP portfolio to enable operators to deliver on the high-performance, low-latency promise of 5G using their existing spectrum and cloud RAN infrastructure.”