diff --git a/docs/API_reference/en/iotlib/net.md b/docs/API_reference/en/iotlib/net.md
index 25cb353f9ab1f46b03b97a8a098d35087e3c0d61..9eeff1e7db75e6ee2bb841f9f6990befe38cdffd 100644
--- a/docs/API_reference/en/iotlib/net.md
+++ b/docs/API_reference/en/iotlib/net.md
@@ -336,9 +336,9 @@ A tuple containing `(GW, LTE)` - Successful execution
 | --------- | ------------------------------------------------------------ |
 | `rssi`    | Received Signal Strength Indicator. Range: -140 to -44 dBm. 99 indicates unknown or undetectable. |
 | `rsrp`    | Reference Signal Receiving Power. Range: -140 to -44 dBm. 99 indicates unknown or undetectable. |
-| `rsrq`    | Reference Signal Receiving Quality. Range: -20 to -3 dBm. The higher the value, the better the reference signal received quality. 255 indicates unknown or undetectable. |
+| `rsrq`    | Reference Signal Receiving Quality. Range: -20 to -3 dB. The higher the value, the better the reference signal received quality. 255 indicates unknown or undetectable. |
 | `cqi`     | Channel Quality Indication. 255 indicates unknown or undetectable. |
-| `sinr`    | Signal to interference plus Noise Ratio. Range: -10–40 dBm. 255 indicates unknown or undetectable. |
+| `sinr`    | Signal to interference plus Noise Ratio. Range: -10–40 dB. 255 indicates unknown or undetectable. |
 
 
 
diff --git a/docs/API_reference/zh/iotlib/net.md b/docs/API_reference/zh/iotlib/net.md
index fdd27ec57b8b61a909d610a4509fc3124a88ef36..34ae4604c41560284932b60f98adcbb9001dc81a 100644
--- a/docs/API_reference/zh/iotlib/net.md
+++ b/docs/API_reference/zh/iotlib/net.md
@@ -325,9 +325,9 @@ net.getSignal([sinrEnable])
 | ------ | ------------------------------------------------------------ |
 | `rssi` | 接收的信号强度，范围 -140 ~ -44 dBm，99表示未知或者无法检测到 |
 | `rsrp` | 下行参考信号的接收功率，范围 -140 ~ -44 dBm，99表示未知或者无法检测到 |
-| `rsrq` | 下行特定小区参考信号的接收质量，范围 -20 ~ -3 dBm，值越大越好 ,255表示未知或者无法检测到 |
+| `rsrq` | 下行特定小区参考信号的接收质量，范围 -20 ~ -3 dB，值越大越好 ,255表示未知或者无法检测到 |
 | `cqi`  | 信道质量，255表示未知或者无法检测到                          |
-| `sinr` | 干扰信噪比，范围 -10 ~ 40 dBm，255表示未知或者无法检测到     |
+| `sinr` | 干扰信噪比，范围 -10 ~ 40 dB，255表示未知或者无法检测到      |