diff --git a/drivers/net/wireless/realtek/rtw88/main.c b/drivers/net/wireless/realtek/rtw88/main.c
index e6f985a92019..65d20ad02667 100644
--- a/drivers/net/wireless/realtek/rtw88/main.c
+++ b/drivers/net/wireless/realtek/rtw88/main.c
@@ -202,6 +202,21 @@ static void rtw_vif_watch_dog_iter(void *data, struct ieee80211_vif *vif)
 	rtwvif->stats.rx_cnt = 0;
 }
 
+static void rtw_sw_beacon_loss_check(struct rtw_dev *rtwdev,
+				     struct rtw_vif *rtwvif, int received_beacons)
+{
+	int watchdog_delay = 2000000 / 1024; /* TU */
+	int beacon_int, expected_beacons;
+
+	if (rtw_fw_feature_check(&rtwdev->fw, FW_FEATURE_BCN_FILTER) || !rtwvif)
+		return;
+
+	beacon_int = rtwvif_to_vif(rtwvif)->bss_conf.beacon_int;
+	expected_beacons = DIV_ROUND_UP(watchdog_delay, beacon_int);
+
+	rtwdev->beacon_loss = received_beacons < expected_beacons / 2;
+}
+
 /* process TX/RX statistics periodically for hardware,
  * the information helps hardware to enhance performance
  */
@@ -212,6 +227,7 @@ static void rtw_watch_dog_work(struct work_struct *work)
 	struct rtw_traffic_stats *stats = &rtwdev->stats;
 	struct rtw_watch_dog_iter_data data = {};
 	bool busy_traffic = test_bit(RTW_FLAG_BUSY_TRAFFIC, rtwdev->flags);
+	int received_beacons = rtwdev->dm_info.cur_pkt_count.num_bcn_pkt;
 	u32 tx_unicast_mbps, rx_unicast_mbps;
 	bool ps_active;
 
@@ -270,6 +286,8 @@ static void rtw_watch_dog_work(struct work_struct *work)
 	 */
 	rtw_iterate_vifs(rtwdev, rtw_vif_watch_dog_iter, &data);
 
+	rtw_sw_beacon_loss_check(rtwdev, data.rtwvif, received_beacons);
+
 	/* fw supports only one station associated to enter lps, if there are
 	 * more than two stations associated to the AP, then we can not enter
 	 * lps, because fw does not handle the overlapped beacon interval