Low LQI also in neigbour table (TZ-1100)

xight155 commented 3 months ago

Answers checklist.

[X] I have read the documentation ESP Zigbee SDK Programming Guide and tried the debugging tips, the issue is not addressed there.
[X] I have updated ESP Zigbee libs (esp-zboss-lib and esp-zigbee-lib) to the latest version, with corresponding IDF version, and checked that the issue is present there.
[X] I have searched the issue tracker for a similar issue and not found a similar issue.

IDF version.

IDF 5.1.3

esp-zigbee-lib version.

1.4.0

esp-zboss-lib version.

1.4.0

Espressif SoC revision.

ESP32-C6

What is the expected behavior?

In older zigbee lib versions the LQI was must higher, also in the neighbour tables.

Also the distance >20meter can’t reach any more. Now +/- 15 meter with LQI 0 is max.

What is the actual behavior?

low LQI, distance 5meter with LQI +/- 20

Steps to reproduce.

test

More Information.

No response

xieqinan commented 3 months ago

@xight155

Regarding this issue, I need to confirm the following points:

Could you please provide more details about your test environment?
Which older version are you using for comparison with v1.4.0?
Have you printed the RSSI in the neighbor table, which is more accurate than the LQI?
Could you please modify the ieee802154_receive_done() function in ~/esp-idf/components/ieee802154/driver/esp_ieee802154_dev.c to check if the original RSSI value meets the requirement?

static void ieee802154_receive_done(uint8_t *data, esp_ieee802154_frame_info_t *frame_info)
{
    // If the RX done packet is written in the stub buffer, drop it silently.
    if (s_rx_index == CONFIG_IEEE802154_RX_BUFFER_SIZE) {
        esp_rom_printf("receive buffer full, drop the current frame.\n");
    } else {
        // Otherwise, post it to the upper layer.
        frame_info->process = true;
        esp_rom_printf("rssi: %d\n", frame_info->rssi);
        esp_ieee802154_receive_done(data, frame_info);
    }
}

BaWe155 commented 3 months ago

@xieqinan Thank you for the quick reply, we are testing the network (with 2/3 hops) now in a warehouse with a free line of sight.

1.1.2 works well, with a join lqi of 5. I will test the code below, normally I get the Lqi and neighbour table from the control bridge/coordinator

BaWe155 commented 3 months ago

I tested the function with a CB and three nodes (as router), two routers with a distance of 1 meter of another and a router with a distance of 15/16 meters

Router A with mac:404C ----- 1028, RSSI -48 and -87

Distance A and B is 1meter

Router B with mac:5432 -----38f4, RSSI -62 and -101

I think the module batch start with MAC:5432 have a poor/weak RX (I tested several modules starts with 5432). How can I check if the batch with 5432 is a 100% original Espressif C6 module?

BaWe155 commented 3 months ago

Please check the refreshing of the neighbour table (of a router with V1.4.0) and lqi, Lqi is very low compare with a router running with 1.1.2 Zigbee version.

xieqinan commented 3 months ago

@BaWe155 ，

I think the module batch start with MAC:5432 have a poor/weak RX (I tested several modules starts with 5432). How can I check if the batch with 5432 is a 100% original Espressif C6 module?

I think you can run esptool.py -p /dev/ttyUSB1 flash_id to get the BASE MAC, and then verify the MAC address on the OUI page.

Please check the refreshing of the neighbour table (of a router with V1.4.0) and lqi, Lqi is very low compare with a router running with 1.1.2 Zigbee version.

Were the test results for esp-zigbee-sdk v1.4.0 and v1.1.2 generated in the same environment? If so, please modify the ieee802154_receive_done() function according to the instructions in https://github.com/espressif/esp-zigbee-sdk/issues/418#issuecomment-2324198261 and then provide us with the test results.

BaWe155 commented 3 months ago

Hi @xieqinan,

I will test it, can you check/compare it if there is anything changed with the neighbour table and refreshing of it? I see nodes in the table who are longtime offline and there are better neighbours available.

BaWe155 commented 2 months ago

Hi @xieqinan I checked the Mac bove are original ESP32-C6 modules but a difference of +/- -20dBm, how can I get in the future the modules with a good RX level? maybe ask a colleague about the hardware?

xieqinan commented 1 month ago

@BaWe155 ，

Does the ESP32C6 have enable the Wi-Fi feature on your test?

how can I get in the future the modules with a good RX level? maybe ask a colleague about the hardware?

Please contact our hardware support team: https://www.espressif.com/en/contact-us/technical-inquiries/hardware-issues.

BaWe155 commented 2 weeks ago

@BaWe155 ，

Does the ESP32C6 have enable the Wi-Fi feature on your test?

how can I get in the future the modules with a good RX level? maybe ask a colleague about the hardware?

Please contact our hardware support team: https://www.espressif.com/en/contact-us/technical-inquiries/hardware-issues.

We know the issue now, there is something wrong with the matching circuit, thank you

espressif / esp-zigbee-sdk