How can I make Lora communication faster for very large packets

[CamiloDSD]

Hello community good morning, I have been using a lorawan module WIo-E5 from Seed studio, but this can be applied to any LoRaWAN device, and it is the sending of large packets, I am using US915 with SF7 to send around 242bytes and I have a waiting time to receive messages from the server in this case The Things of network of 2 to 6 seconds in total for Rx1 and Rx2 but this time is due to the time it takes to receive a message from the server and for my purpose I want to make the communication much faster and more efficient so that it takes at least 2 seconds or less, is there any strategy or methodology to send extremely large packets, quickly and efficiently using loRaWAN, or any configuration or times required for RX1 and RX2 handling them manually?, or a strategy to send packets dynamically changing channels?

I am attentive to any information, thank you very much.

[PJ_Glasso]

Hi there,

So I’m sure it’s been asked here b4 , check the search and I have seen this

How to increase the communication speed of LoRa E5?

According to Sandeepmistry and in theory, the maximum payload is 256 bytes BUT that is theoretical only. Max payload is regulated in LoRaWAN, and depends on the SF/BW combination, from 51 to 222 bytes as you set it.(table) Mode Bitrate Max payload SF7/125kHz 5470 222 SF8/125kHz 3125 222 SF9/125kHz 1760 115 SF10/125kHz 980 51 SF11/125kHz 440 51 SF12/125kHz 250 51 SF7/250kHz 11000 222 in the (H) range (868+) at least, dwell time limitations (400 ms max) impose a physical l…

HTH
GL PJ

[reivilo]

In Europe, ETSI regulations set a 0.1%, 1% or 10% duty cycle, uplink or downlink, depending on the band.

See for example section 7.2 Technical parameters and implications on spectrum of Technical characteristics for Low Power Wide Area Networks Chirp Spread Spectrum (LPWAN-CSS) operating in the UHF spectrum below 1 GHz or section 2. Applicable Bands: Overview of AN1200.10: ETSI Compliance of the SX1272/3 LoRa Modem.