From f6760db77d975d82c7119a82387bc66b9e320c25 Mon Sep 17 00:00:00 2001 From: cjin Date: Tue, 19 Dec 2023 14:42:48 +0800 Subject: [PATCH] change(ble): added ble cca en and thresh option --- components/bt/controller/esp32c2/Kconfig.in | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/components/bt/controller/esp32c2/Kconfig.in b/components/bt/controller/esp32c2/Kconfig.in index 460f61cb67..96b57e4d48 100644 --- a/components/bt/controller/esp32c2/Kconfig.in +++ b/components/bt/controller/esp32c2/Kconfig.in @@ -463,3 +463,23 @@ config BT_CTRL_BLE_ADV_REPORT_DISCARD_THRSHOLD config BT_LE_RELEASE_IRAM_SUPPORTED bool default y + +config BT_LE_TX_CCA_ENABLED + bool "BLE enable TX CCA feature" + default n + help + Enable the BLE (Bluetooth Low Energy) LBT (Listen Before Talk) function. Before transmitting a packet, + monitor the in-band CCA (Clear Channel Assessment). If the airborne carrier energy is too high, abandon + the packet transmission. Enabling this feature may potentially decrease BLE performance. In certain + countries and regions, when the maximum transmission power exceeds a certain limit, support for LBT + interference avoidance mechanisms is required. If the maximum transmission power does not reach the limit, + it may not be necessary to enable this function. + Please refer to the relevant certification regulations for details. + +config BT_LE_CCA_RSSI_THRESH + int "Power threshold to refrain packet transmission in unit of -1 dBm" + depends on BT_LE_TX_CCA_ENABLED + range 1 100 + default 75 + help + If a carrier signal above the threshold is detected in the air, refrain from packet transmission.