diff --git a/drivers/net/wireless/realtek/rtw88/regd.c b/drivers/net/wireless/realtek/rtw88/regd.c
index 124fc7ae6a147..7f3b2ea3f2a56 100644
--- a/drivers/net/wireless/realtek/rtw88/regd.c
+++ b/drivers/net/wireless/realtek/rtw88/regd.c
@@ -502,6 +502,14 @@ u8 rtw_regd_get(struct rtw_dev *rtwdev)
 }
 EXPORT_SYMBOL(rtw_regd_get);
 
+bool rtw_regd_srrc(struct rtw_dev *rtwdev)
+{
+	struct rtw_regd *regd = &rtwdev->regd;
+
+	return rtw_reg_match(regd->regulatory, "CN");
+}
+EXPORT_SYMBOL(rtw_regd_srrc);
+
 struct rtw_regd_alternative_t {
 	bool set;
 	u8 alt;
diff --git a/drivers/net/wireless/realtek/rtw88/regd.h b/drivers/net/wireless/realtek/rtw88/regd.h
index 34cb13d0cd9eb..3c5a6fd8e6ddd 100644
--- a/drivers/net/wireless/realtek/rtw88/regd.h
+++ b/drivers/net/wireless/realtek/rtw88/regd.h
@@ -68,4 +68,6 @@ int rtw_regd_init(struct rtw_dev *rtwdev);
 int rtw_regd_hint(struct rtw_dev *rtwdev);
 u8 rtw_regd_get(struct rtw_dev *rtwdev);
 bool rtw_regd_has_alt(u8 regd, u8 *regd_alt);
+bool rtw_regd_srrc(struct rtw_dev *rtwdev);
+
 #endif
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8821c.c b/drivers/net/wireless/realtek/rtw88/rtw8821c.c
index adf224618a2a6..429bb420b0563 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8821c.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8821c.c
@@ -381,6 +381,65 @@ static void rtw8821c_set_channel_rxdfir(struct rtw_dev *rtwdev, u8 bw)
 	}
 }
 
+static void rtw8821c_cck_tx_filter_srrc(struct rtw_dev *rtwdev, u8 channel, u8 bw)
+{
+	struct rtw_hal *hal = &rtwdev->hal;
+
+	if (channel == 14) {
+		rtw_write32_mask(rtwdev, REG_CCA_FLTR, MASKHWORD, 0xe82c);
+		rtw_write32_mask(rtwdev, REG_TXSF2, MASKDWORD, 0x0000b81c);
+		rtw_write32_mask(rtwdev, REG_TXSF6, MASKLWORD, 0x0000);
+		rtw_write32_mask(rtwdev, REG_TXFILTER, MASKDWORD, 0x00003667);
+
+		rtw_write_rf(rtwdev, RF_PATH_A, RF_LUTWE2, RFREG_MASK, 0x00002);
+		rtw_write_rf(rtwdev, RF_PATH_A, RF_LUTWA, RFREG_MASK, 0x0001e);
+		rtw_write_rf(rtwdev, RF_PATH_A, RF_LUTWD0, RFREG_MASK, 0x00000);
+		rtw_write_rf(rtwdev, RF_PATH_A, RF_LUTWA, RFREG_MASK, 0x0001c);
+		rtw_write_rf(rtwdev, RF_PATH_A, RF_LUTWD0, RFREG_MASK, 0x00000);
+		rtw_write_rf(rtwdev, RF_PATH_A, RF_LUTWA, RFREG_MASK, 0x0000e);
+		rtw_write_rf(rtwdev, RF_PATH_A, RF_LUTWD0, RFREG_MASK, 0x00000);
+		rtw_write_rf(rtwdev, RF_PATH_A, RF_LUTWA, RFREG_MASK, 0x0000c);
+		rtw_write_rf(rtwdev, RF_PATH_A, RF_LUTWD0, RFREG_MASK, 0x00000);
+		rtw_write_rf(rtwdev, RF_PATH_A, RF_LUTWE2, RFREG_MASK, 0x00000);
+	} else if (channel == 13 ||
+		   (channel == 11 && bw == RTW_CHANNEL_WIDTH_40)) {
+		rtw_write32_mask(rtwdev, REG_CCA_FLTR, MASKHWORD, 0xf8fe);
+		rtw_write32_mask(rtwdev, REG_TXSF2, MASKDWORD, 0x64b80c1c);
+		rtw_write32_mask(rtwdev, REG_TXSF6, MASKLWORD, 0x8810);
+		rtw_write32_mask(rtwdev, REG_TXFILTER, MASKDWORD, 0x01235667);
+
+		rtw_write_rf(rtwdev, RF_PATH_A, RF_LUTWE2, RFREG_MASK, 0x00002);
+		rtw_write_rf(rtwdev, RF_PATH_A, RF_LUTWA, RFREG_MASK, 0x0001e);
+		rtw_write_rf(rtwdev, RF_PATH_A, RF_LUTWD0, RFREG_MASK, 0x00027);
+		rtw_write_rf(rtwdev, RF_PATH_A, RF_LUTWA, RFREG_MASK, 0x0001c);
+		rtw_write_rf(rtwdev, RF_PATH_A, RF_LUTWD0, RFREG_MASK, 0x00027);
+		rtw_write_rf(rtwdev, RF_PATH_A, RF_LUTWA, RFREG_MASK, 0x0000e);
+		rtw_write_rf(rtwdev, RF_PATH_A, RF_LUTWD0, RFREG_MASK, 0x00029);
+		rtw_write_rf(rtwdev, RF_PATH_A, RF_LUTWA, RFREG_MASK, 0x0000c);
+		rtw_write_rf(rtwdev, RF_PATH_A, RF_LUTWD0, RFREG_MASK, 0x00026);
+		rtw_write_rf(rtwdev, RF_PATH_A, RF_LUTWE2, RFREG_MASK, 0x00000);
+	} else {
+		rtw_write32_mask(rtwdev, REG_CCA_FLTR, MASKHWORD, 0xe82c);
+		rtw_write32_mask(rtwdev, REG_TXSF2, MASKDWORD,
+				 hal->ch_param[0]);
+		rtw_write32_mask(rtwdev, REG_TXSF6, MASKLWORD,
+				 hal->ch_param[1] & MASKLWORD);
+		rtw_write32_mask(rtwdev, REG_TXFILTER, MASKDWORD,
+				 hal->ch_param[2]);
+
+		rtw_write_rf(rtwdev, RF_PATH_A, RF_LUTWE2, RFREG_MASK, 0x00002);
+		rtw_write_rf(rtwdev, RF_PATH_A, RF_LUTWA, RFREG_MASK, 0x0001e);
+		rtw_write_rf(rtwdev, RF_PATH_A, RF_LUTWD0, RFREG_MASK, 0x00000);
+		rtw_write_rf(rtwdev, RF_PATH_A, RF_LUTWA, RFREG_MASK, 0x0001c);
+		rtw_write_rf(rtwdev, RF_PATH_A, RF_LUTWD0, RFREG_MASK, 0x00000);
+		rtw_write_rf(rtwdev, RF_PATH_A, RF_LUTWA, RFREG_MASK, 0x0000e);
+		rtw_write_rf(rtwdev, RF_PATH_A, RF_LUTWD0, RFREG_MASK, 0x00000);
+		rtw_write_rf(rtwdev, RF_PATH_A, RF_LUTWA, RFREG_MASK, 0x0000c);
+		rtw_write_rf(rtwdev, RF_PATH_A, RF_LUTWD0, RFREG_MASK, 0x00000);
+		rtw_write_rf(rtwdev, RF_PATH_A, RF_LUTWE2, RFREG_MASK, 0x00000);
+	}
+}
+
 static void rtw8821c_set_channel_bb(struct rtw_dev *rtwdev, u8 channel, u8 bw,
 				    u8 primary_ch_idx)
 {
@@ -395,6 +454,13 @@ static void rtw8821c_set_channel_bb(struct rtw_dev *rtwdev, u8 channel, u8 bw,
 
 		rtw_write32_mask(rtwdev, REG_TXSCALE_A, 0xf00, 0x0);
 		rtw_write32_mask(rtwdev, REG_CLKTRK, 0x1ffe0000, 0x96a);
+
+		if (rtw_regd_srrc(rtwdev)) {
+			rtw8821c_cck_tx_filter_srrc(rtwdev, channel, bw);
+			goto set_bw;
+		}
+
+		/* CCK TX filter parameters for default case */
 		if (channel == 14) {
 			rtw_write32_mask(rtwdev, REG_TXSF2, MASKDWORD, 0x0000b81c);
 			rtw_write32_mask(rtwdev, REG_TXSF6, MASKLWORD, 0x0000);
@@ -430,6 +496,7 @@ static void rtw8821c_set_channel_bb(struct rtw_dev *rtwdev, u8 channel, u8 bw,
 			rtw_write32_mask(rtwdev, REG_CLKTRK, 0x1ffe0000, 0x412);
 	}
 
+set_bw:
 	switch (bw) {
 	case RTW_CHANNEL_WIDTH_20:
 	default:
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8821c.h b/drivers/net/wireless/realtek/rtw88/rtw8821c.h
index fcff31688c453..91ed921407bbe 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8821c.h
+++ b/drivers/net/wireless/realtek/rtw88/rtw8821c.h
@@ -238,6 +238,7 @@ extern const struct rtw_chip_info rtw8821c_hw_spec;
 #define REG_RXSB	0xa00
 #define REG_ADCINI	0xa04
 #define REG_PWRTH	0xa08
+#define REG_CCA_FLTR	0xa20
 #define REG_TXSF2	0xa24
 #define REG_TXSF6	0xa28
 #define REG_FA_CCK	0xa5c