diff --git a/components/esp32/include/esp_wifi_internal.h b/components/esp32/include/esp_wifi_internal.h
index 5cdd6d9d6e..f486b7aaf6 100644
--- a/components/esp32/include/esp_wifi_internal.h
+++ b/components/esp32/include/esp_wifi_internal.h
@@ -127,6 +127,26 @@ esp_err_t esp_wifi_internal_reg_rxcb(wifi_interface_t ifx, wifi_rxcb_t fn);
   */
 esp_err_t esp_wifi_internal_set_sta_ip(void);
 
+/**
+  * @brief  enable or disable transmitting WiFi MAC frame with fixed rate
+  *
+  * @attention 1. If fixed rate is enabled, both management and data frame are transmitted with fixed rate
+  * @attention 2. Make sure that the receiver is able to receive the frame with the fixed rate if you want the frame to be received
+  *
+  * @param  ifx : wifi interface
+  * @param  en : false - disable, true - enable
+  * @param  rate : PHY rate
+  *
+  * @return
+  *    - ERR_OK  : succeed
+  *    - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by esp_wifi_init
+  *    - ESP_ERR_WIFI_NOT_STARTED: WiFi was not started by esp_wifi_start
+  *    - ESP_ERR_WIFI_IF : invalid WiFi interface
+  *    - ESP_ERR_INVALID_ARG : invalid rate
+  *    - ESP_ERR_NOT_SUPPORTED : do not support to set fixed rate if TX AMPDU is enabled
+  */
+esp_err_t esp_wifi_internal_set_fix_rate(wifi_interface_t ifx, bool en, wifi_phy_rate_t rate);
+
 /**
   * @brief     Check the MD5 values of the OS adapter header files in IDF and WiFi library
   *
diff --git a/components/esp32/include/esp_wifi_types.h b/components/esp32/include/esp_wifi_types.h
index 821f0c34e5..6bd1616215 100644
--- a/components/esp32/include/esp_wifi_types.h
+++ b/components/esp32/include/esp_wifi_types.h
@@ -446,6 +446,47 @@ typedef struct {
                     enabled_ant1: 4;      /**< Index (in antenna GPIO configuration) of enabled WIFI_ANT_MODE_ANT1 */
 } wifi_ant_config_t;
 
+/**
+  * @brief WiFi PHY rate encodings
+  *
+  */
+typedef enum {
+    WIFI_PHY_RATE_1M_L      = 0x00, /**< 1 Mbps with long preamble */
+    WIFI_PHY_RATE_2M_L      = 0x01, /**< 2 Mbps with long preamble */
+    WIFI_PHY_RATE_5M_L      = 0x02, /**< 5.5 Mbps with long preamble */
+    WIFI_PHY_RATE_11M_L     = 0x03, /**< 11 Mbps with long preamble */
+    WIFI_PHY_RATE_2M_S      = 0x05, /**< 2 Mbps with short preamble */
+    WIFI_PHY_RATE_5M_S      = 0x06, /**< 5.5 Mbps with short preamble */
+    WIFI_PHY_RATE_11M_S     = 0x07, /**< 11 Mbps with short preamble */
+    WIFI_PHY_RATE_48M       = 0x08, /**< 48 Mbps */
+    WIFI_PHY_RATE_24M       = 0x09, /**< 24 Mbps */
+    WIFI_PHY_RATE_12M       = 0x0A, /**< 12 Mbps */
+    WIFI_PHY_RATE_6M        = 0x0B, /**< 6 Mbps */
+    WIFI_PHY_RATE_54M       = 0x0C, /**< 54 Mbps */
+    WIFI_PHY_RATE_36M       = 0x0D, /**< 36 Mbps */
+    WIFI_PHY_RATE_18M       = 0x0E, /**< 18 Mbps */
+    WIFI_PHY_RATE_9M        = 0x0F, /**< 9 Mbps */
+    WIFI_PHY_RATE_MCS0_LGI  = 0x10, /**< MCS0 with long GI, 6.5 Mbps for 20MHz, 13.5 Mbps for 40MHz */
+    WIFI_PHY_RATE_MCS1_LGI  = 0x11, /**< MCS1 with long GI, 13 Mbps for 20MHz, 27 Mbps for 40MHz */
+    WIFI_PHY_RATE_MCS2_LGI  = 0x12, /**< MCS2 with long GI, 19.5 Mbps for 20MHz, 40.5 Mbps for 40MHz */
+    WIFI_PHY_RATE_MCS3_LGI  = 0x13, /**< MCS3 with long GI, 26 Mbps for 20MHz, 54 Mbps for 40MHz */
+    WIFI_PHY_RATE_MCS4_LGI  = 0x14, /**< MCS4 with long GI, 39 Mbps for 20MHz, 81 Mbps for 40MHz */
+    WIFI_PHY_RATE_MCS5_LGI  = 0x15, /**< MCS5 with long GI, 52 Mbps for 20MHz, 108 Mbps for 40MHz */
+    WIFI_PHY_RATE_MCS6_LGI  = 0x16, /**< MCS6 with long GI, 58.5 Mbps for 20MHz, 121.5 Mbps for 40MHz */
+    WIFI_PHY_RATE_MCS7_LGI  = 0x17, /**< MCS7 with long GI, 65 Mbps for 20MHz, 135 Mbps for 40MHz */
+    WIFI_PHY_RATE_MCS0_SGI  = 0x18, /**< MCS0 with short GI, 7.2 Mbps for 20MHz, 15 Mbps for 40MHz */
+    WIFI_PHY_RATE_MCS1_SGI  = 0x19, /**< MCS1 with short GI, 14.4 Mbps for 20MHz, 30 Mbps for 40MHz */
+    WIFI_PHY_RATE_MCS2_SGI  = 0x1A, /**< MCS2 with short GI, 21.7 Mbps for 20MHz, 45 Mbps for 40MHz */
+    WIFI_PHY_RATE_MCS3_SGI  = 0x1B, /**< MCS3 with short GI, 28.9 Mbps for 20MHz, 60 Mbps for 40MHz */
+    WIFI_PHY_RATE_MCS4_SGI  = 0x1C, /**< MCS4 with short GI, 43.3 Mbps for 20MHz, 90 Mbps for 40MHz */
+    WIFI_PHY_RATE_MCS5_SGI  = 0x1D, /**< MCS5 with short GI, 57.8 Mbps for 20MHz, 120 Mbps for 40MHz */
+    WIFI_PHY_RATE_MCS6_SGI  = 0x1E, /**< MCS6 with short GI, 65 Mbps for 20MHz, 135 Mbps for 40MHz */
+    WIFI_PHY_RATE_MCS7_SGI  = 0x1F, /**< MCS7 with short GI, 72.2 Mbps for 20MHz, 150 Mbps for 40MHz */
+    WIFI_PHY_RATE_LORA_250K = 0x29, /**< 250 Kbps */
+    WIFI_PHY_RATE_LORA_500K = 0x2A, /**< 500 Kbps */
+    WIFI_PHY_RATE_MAX,
+} wifi_phy_rate_t;
+
 #ifdef __cplusplus
 }
 #endif