diff --git a/components/esp_wifi/include/phy.h b/components/esp_wifi/include/phy.h
index 37066d00f9..de05f28ebc 100644
--- a/components/esp_wifi/include/phy.h
+++ b/components/esp_wifi/include/phy.h
@@ -64,6 +64,11 @@ void coex_bt_high_prio(void);
  */
 void phy_close_rf(void);
 
+/**
+ * @brief Set PHY internal params.
+ */
+void phy_param_set(uint8_t mode);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/components/esp_wifi/lib_esp32 b/components/esp_wifi/lib_esp32
index 4c46338b90..a16955d7b7 160000
--- a/components/esp_wifi/lib_esp32
+++ b/components/esp_wifi/lib_esp32
@@ -1 +1 @@
-Subproject commit 4c46338b90a4f7aa2dc6a14736be1fe63f8a2e10
+Subproject commit a16955d7b727b5ce966193df6bc4e0004d485312
diff --git a/components/esp_wifi/src/phy_init.c b/components/esp_wifi/src/phy_init.c
index 5d789c3c59..fbaf4c2680 100644
--- a/components/esp_wifi/src/phy_init.c
+++ b/components/esp_wifi/src/phy_init.c
@@ -700,6 +700,9 @@ void esp_phy_load_cal_and_init(phy_rf_module_t module)
     char * phy_version = get_phy_version_str();
     ESP_LOGI(TAG, "phy_version %s", phy_version);
 
+    // PHY Side band optimizaton
+    phy_param_set(1);
+
     esp_phy_calibration_data_t* cal_data =
             (esp_phy_calibration_data_t*) calloc(sizeof(esp_phy_calibration_data_t), 1);
     if (cal_data == NULL) {