GNU Radio's LORA_SDR Package
mu_synchro.h
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1/* -*- c++ -*- */
2/*
3 * Copyright 2020 <+YOU OR YOUR COMPANY+>.
4 *
5 * This is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
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19 */
20
21
22#ifndef INCLUDED_LORA_SDR_MU_SYNCHRO_H
23#define INCLUDED_LORA_SDR_MU_SYNCHRO_H
24
25#include <lora_sdr/api.h>
26#include <gnuradio/block.h>
27
28namespace gr {
29 namespace lora_sdr {
30
31 /*!
32 * \ingroup lora_sdr
33 *
34 */
35 class LORA_SDR_API mu_synchro : virtual public gr::block
36 {
37 public:
38 typedef std::shared_ptr<mu_synchro> sptr;
39
40 /*!
41 * \brief Synchronise to the strongest user present
42 *
43 * This block main purpose is to always output samples that are synchronised to the strongest user present. It applies the STO and CFO correction required,
44 * based on the estimation provided by the user detection stage. It outputs windows of samples that can be used by the demodulation stage to correctly interpet
45 * the user configuration. Each window start with a tag specifying the power of each user, the size of the window, the type of symbol present in the windows for each user (VOID, UPCHIRP, SYNC_WORD, DOWNCHIRP, QUARTER_DOWN, PAYLOAD or UNDETERMINED),
46 * the offset between the beginning of the window and the new symbol of the non-synchronised user and the CFO between the two users.
47 *
48 * \param sf Spreading factor
49 * \param os_factor Oversampling factor
50 * \param len Number of symbols in payload
51 */
52 static sptr make(uint8_t sf, uint8_t os_factor, uint32_t len);
53 };
54
55 } // namespace lora_sdr
56} // namespace gr
57
58#endif /* INCLUDED_LORA_SDR_MU_SYNCHRO_H */
59
#define LORA_SDR_API
Definition: api.h:19
Definition: mu_synchro.h:36
std::shared_ptr< mu_synchro > sptr
Definition: mu_synchro.h:38
static sptr make(uint8_t sf, uint8_t os_factor, uint32_t len)
Synchronise to the strongest user present.
Definition: add_crc.h:28