LoRaPHYCN779.cpp

00001 /**
00002  *  @file LoRaPHYCN779.cpp
00003  *
00004  *  @brief Implements LoRaPHY for Chinese 779 MHz band
00005  *
00006  *  \code
00007  *   ______                              _
00008  *  / _____)             _              | |
00009  * ( (____  _____ ____ _| |_ _____  ____| |__
00010  *  \____ \| ___ |    (_   _) ___ |/ ___)  _ \
00011  *  _____) ) ____| | | || |_| ____( (___| | | |
00012  * (______/|_____)_|_|_| \__)_____)\____)_| |_|
00013  *   (C)2013 Semtech
00014  *  ___ _____ _   ___ _  _____ ___  ___  ___ ___
00015  * / __|_   _/_\ / __| |/ / __/ _ \| _ \/ __| __|
00016  * \__ \ | |/ _ \ (__| ' <| _| (_) |   / (__| _|
00017  * |___/ |_/_/ \_\___|_|\_\_| \___/|_|_\\___|___|
00018  * embedded.connectivity.solutions===============
00019  *
00020  * \endcode
00021  *
00022  *
00023  * License: Revised BSD License, see LICENSE.TXT file include in the project
00024  *
00025  * Maintainer: Miguel Luis ( Semtech ), Gregory Cristian ( Semtech ) and Daniel Jaeckle ( STACKFORCE )
00026  *
00027  * Copyright (c) 2017, Arm Limited and affiliates.
00028  * SPDX-License-Identifier: BSD-3-Clause
00029  *
00030  */
00031 
00032 #include "LoRaPHYCN779.h"
00033 #include "lora_phy_ds.h"
00034 
00035 /*!
00036  * Number of default channels
00037  */
00038 #define CN779_NUMB_DEFAULT_CHANNELS                 3
00039 
00040 /*!
00041  * Number of channels to apply for the CF list
00042  */
00043 #define CN779_NUMB_CHANNELS_CF_LIST                 5
00044 
00045 /*!
00046  * Minimal datarate that can be used by the node
00047  */
00048 #define CN779_TX_MIN_DATARATE                       DR_0
00049 
00050 /*!
00051  * Maximal datarate that can be used by the node
00052  */
00053 #define CN779_TX_MAX_DATARATE                       DR_7
00054 
00055 /*!
00056  * Minimal datarate that can be used by the node
00057  */
00058 #define CN779_RX_MIN_DATARATE                       DR_0
00059 
00060 /*!
00061  * Maximal datarate that can be used by the node
00062  */
00063 #define CN779_RX_MAX_DATARATE                       DR_7
00064 
00065 #define CN779_DEFAULT_MAX_DATARATE                  DR_5
00066 
00067 /*!
00068  * Default datarate used by the node
00069  */
00070 #define CN779_DEFAULT_DATARATE                      DR_0
00071 
00072 /*!
00073  * Minimal Rx1 receive datarate offset
00074  */
00075 #define CN779_MIN_RX1_DR_OFFSET                     0
00076 
00077 /*!
00078  * Maximal Rx1 receive datarate offset
00079  */
00080 #define CN779_MAX_RX1_DR_OFFSET                     5
00081 
00082 /*!
00083  * Default Rx1 receive datarate offset
00084  */
00085 #define CN779_DEFAULT_RX1_DR_OFFSET                 0
00086 
00087 /*!
00088  * Minimal Tx output power that can be used by the node
00089  */
00090 #define CN779_MIN_TX_POWER                          TX_POWER_5
00091 
00092 /*!
00093  * Maximal Tx output power that can be used by the node
00094  */
00095 #define CN779_MAX_TX_POWER                          TX_POWER_0
00096 
00097 /*!
00098  * Default Tx output power used by the node
00099  */
00100 #define CN779_DEFAULT_TX_POWER                      TX_POWER_0
00101 
00102 /*!
00103  * Default Max EIRP
00104  */
00105 #define CN779_DEFAULT_MAX_EIRP                      12.15f
00106 
00107 /*!
00108  * Default antenna gain
00109  */
00110 #define CN779_DEFAULT_ANTENNA_GAIN                  2.15f
00111 
00112 /*!
00113  * ADR Ack limit
00114  */
00115 #define CN779_ADR_ACK_LIMIT                         64
00116 
00117 /*!
00118  * ADR Ack delay
00119  */
00120 #define CN779_ADR_ACK_DELAY                         32
00121 
00122 /*!
00123  * Enabled or disabled the duty cycle
00124  */
00125 #define CN779_DUTY_CYCLE_ENABLED                    1
00126 
00127 /*!
00128  * Maximum RX window duration
00129  */
00130 #define CN779_MAX_RX_WINDOW                         3000
00131 
00132 /*!
00133  * Receive delay 1
00134  */
00135 #define CN779_RECEIVE_DELAY1                        1000
00136 
00137 /*!
00138  * Receive delay 2
00139  */
00140 #define CN779_RECEIVE_DELAY2                        2000
00141 
00142 /*!
00143  * Join accept delay 1
00144  */
00145 #define CN779_JOIN_ACCEPT_DELAY1                    5000
00146 
00147 /*!
00148  * Join accept delay 2
00149  */
00150 #define CN779_JOIN_ACCEPT_DELAY2                    6000
00151 
00152 /*!
00153  * Maximum frame counter gap
00154  */
00155 #define CN779_MAX_FCNT_GAP                          16384
00156 
00157 /*!
00158  * Ack timeout
00159  */
00160 #define CN779_ACKTIMEOUT                            2000
00161 
00162 /*!
00163  * Random ack timeout limits
00164  */
00165 #define CN779_ACK_TIMEOUT_RND                       1000
00166 
00167 /*!
00168  * Verification of default datarate
00169  */
00170 #if ( CN779_DEFAULT_DATARATE > DR_5 )
00171 #error "A default DR higher than DR_5 may lead to connectivity loss."
00172 #endif
00173 
00174 /*!
00175  * Second reception window channel frequency definition.
00176  */
00177 #define CN779_RX_WND_2_FREQ                         786000000
00178 
00179 /*!
00180  * Second reception window channel datarate definition.
00181  */
00182 #define CN779_RX_WND_2_DR                           DR_0
00183 
00184 /*!
00185  * Band 0 definition
00186  * { DutyCycle, TxMaxPower, LastJoinTxDoneTime, LastTxDoneTime, TimeOff }
00187  */
00188 static const band_t  CN779_BAND0  = {100, CN779_MAX_TX_POWER, 0, 0, 0, 779500000, 786500000}; //  1.0 %
00189 
00190 /*!
00191  * LoRaMac default channel 1
00192  * Channel = { Frequency [Hz], RX1 Frequency [Hz], { ( ( DrMax << 4 ) | DrMin ) }, Band }
00193  */
00194 static const channel_params_t  CN779_LC1  = {779500000, 0, { ( ( DR_5 << 4 ) | DR_0 ) }, 0};
00195 /*!
00196  * LoRaMac default channel 2
00197  * Channel = { Frequency [Hz], RX1 Frequency [Hz], { ( ( DrMax << 4 ) | DrMin ) }, Band }
00198  */
00199 static const channel_params_t  CN779_LC2  = {779700000, 0, { ( ( DR_5 << 4 ) | DR_0 ) }, 0};
00200 
00201 /*!
00202  * LoRaMac default channel 3
00203  * Channel = { Frequency [Hz], RX1 Frequency [Hz], { ( ( DrMax << 4 ) | DrMin ) }, Band }
00204  */
00205 static const channel_params_t  CN779_LC3  = {779900000, 0, { ( ( DR_5 << 4 ) | DR_0 ) }, 0};
00206 
00207 /*!
00208  * LoRaMac channels which are allowed for the join procedure
00209  */
00210 #define CN779_JOIN_CHANNELS                         (uint16_t) (LC(1) | LC(2) | LC(3))
00211 
00212 /*!
00213  * Data rates table definition
00214  */
00215 static const uint8_t datarates_CN779 []  = {12, 11, 10,  9,  8,  7,  7, 50};
00216 
00217 /*!
00218  * Bandwidths table definition in Hz
00219  */
00220 static const uint32_t bandwidths_CN779 [] = {125000, 125000, 125000, 125000, 125000, 125000, 250000, 0};
00221 
00222 /*!
00223  * Maximum payload with respect to the datarate index. Cannot operate with repeater.
00224  */
00225 static const uint8_t max_payloads_CN779 [] = {51, 51, 51, 115, 242, 242, 242, 242};
00226 
00227 /*!
00228  * Maximum payload with respect to the datarate index. Can operate with repeater.
00229  */
00230 static const uint8_t max_payloads_with_repeater_CN779 [] = {51, 51, 51, 115, 222, 222, 222, 222};
00231 
00232 
00233 LoRaPHYCN779::LoRaPHYCN779(LoRaWANTimeHandler &lora_time)
00234         : LoRaPHY(lora_time)
00235 {
00236     bands[0] = CN779_BAND0 ;
00237 
00238     // Channels
00239     channels[0] = CN779_LC1 ;
00240     channels[1] = CN779_LC2 ;
00241     channels[2] = CN779_LC3 ;
00242 
00243     // Initialize the channels default mask
00244     default_channel_mask[0] = LC(1) + LC(2) + LC(3);
00245     // Update the channels mask
00246     copy_channel_mask(channel_mask, default_channel_mask, CN779_CHANNEL_MASK_SIZE);
00247 
00248     // set default channels
00249     phy_params.channels.channel_list = channels;
00250     phy_params.channels.channel_list_size = CN779_MAX_NB_CHANNELS;
00251     phy_params.channels.mask = channel_mask;
00252     phy_params.channels.default_mask = default_channel_mask;
00253     phy_params.channels.mask_size = CN779_CHANNEL_MASK_SIZE;
00254 
00255     // set bands for CN779 spectrum
00256     phy_params.bands.table = bands;
00257     phy_params.bands.size = CN779_MAX_NB_BANDS;
00258 
00259     // set bandwidths available in CN779 spectrum
00260     phy_params.bandwidths.table = (void *) bandwidths_CN779 ;
00261     phy_params.bandwidths.size = 8;
00262 
00263     // set data rates available in CN779 spectrum
00264     phy_params.datarates.table = (void *) datarates_CN779 ;
00265     phy_params.datarates.size = 8;
00266 
00267     // set payload sizes with respect to data rates
00268     phy_params.payloads.table = (void *) max_payloads_CN779 ;
00269     phy_params.payloads.size = 8;
00270     phy_params.payloads_with_repeater.table = (void *) max_payloads_with_repeater_CN779 ;
00271     phy_params.payloads_with_repeater.size = 8;
00272 
00273     // dwell time setting
00274     phy_params.ul_dwell_time_setting = 0;
00275     phy_params.dl_dwell_time_setting = 0;
00276 
00277     // set initial and default parameters
00278     phy_params.duty_cycle_enabled = CN779_DUTY_CYCLE_ENABLED;
00279     phy_params.accept_tx_param_setup_req = false;
00280     phy_params.fsk_supported = true;
00281     phy_params.cflist_supported = true;
00282     phy_params.dl_channel_req_supported = true;
00283     phy_params.custom_channelplans_supported = true;
00284     phy_params.default_channel_cnt = CN779_NUMB_DEFAULT_CHANNELS;
00285     phy_params.max_channel_cnt = CN779_MAX_NB_CHANNELS;
00286     phy_params.cflist_channel_cnt = CN779_NUMB_CHANNELS_CF_LIST;
00287     phy_params.min_tx_datarate = CN779_TX_MIN_DATARATE;
00288     phy_params.max_tx_datarate = CN779_TX_MAX_DATARATE;
00289     phy_params.min_rx_datarate = CN779_RX_MIN_DATARATE;
00290     phy_params.max_rx_datarate = CN779_RX_MAX_DATARATE;
00291     phy_params.default_datarate = CN779_DEFAULT_DATARATE;
00292     phy_params.default_max_datarate = CN779_DEFAULT_MAX_DATARATE;
00293     phy_params.min_rx1_dr_offset = CN779_MIN_RX1_DR_OFFSET;
00294     phy_params.max_rx1_dr_offset = CN779_MAX_RX1_DR_OFFSET;
00295     phy_params.default_rx1_dr_offset = CN779_DEFAULT_RX1_DR_OFFSET;
00296     phy_params.min_tx_power = CN779_MIN_TX_POWER;
00297     phy_params.max_tx_power = CN779_MAX_TX_POWER;
00298     phy_params.default_tx_power = CN779_DEFAULT_TX_POWER;
00299     phy_params.default_max_eirp = CN779_DEFAULT_MAX_EIRP;
00300     phy_params.default_antenna_gain = CN779_DEFAULT_ANTENNA_GAIN;
00301     phy_params.adr_ack_limit = CN779_ADR_ACK_LIMIT;
00302     phy_params.adr_ack_delay = CN779_ADR_ACK_DELAY;
00303     phy_params.max_rx_window = CN779_MAX_RX_WINDOW;
00304     phy_params.recv_delay1 = CN779_RECEIVE_DELAY1;
00305     phy_params.recv_delay2 = CN779_RECEIVE_DELAY2;
00306     phy_params.join_channel_mask = CN779_JOIN_CHANNELS;
00307     phy_params.join_accept_delay1 = CN779_JOIN_ACCEPT_DELAY1;
00308     phy_params.join_accept_delay2 = CN779_JOIN_ACCEPT_DELAY2;
00309     phy_params.max_fcnt_gap = CN779_MAX_FCNT_GAP;
00310     phy_params.ack_timeout = CN779_ACKTIMEOUT;
00311     phy_params.ack_timeout_rnd = CN779_ACK_TIMEOUT_RND;
00312     phy_params.rx_window2_datarate = CN779_RX_WND_2_DR;
00313     phy_params.rx_window2_frequency = CN779_RX_WND_2_FREQ;
00314 }
00315 
00316 LoRaPHYCN779::~LoRaPHYCN779()
00317 {
00318 }
00319