diff --git a/通讯协议-SDK应用部分[内部].md b/通讯协议-SDK应用部分[内部].md
index 4c165a2..54827fc 100644
--- a/通讯协议-SDK应用部分[内部].md
+++ b/通讯协议-SDK应用部分[内部].md
@@ -5796,6 +5796,67 @@ infos:{"beacon":"0", "listenIn":"0"}//
 }
 ```
 
+#### 基站BIC码[内部使用]
+
+读
+发送：
+fun: "readBasicBIC" //
+baseId:  1//1~32 (必须指定基站)
+params：{}//可不填
+
+指令样例：
+```json
+{
+	"fun": "readBasicBIC",
+	"baseId": 1,
+	"baseSn": "2023031402",
+	"packetTag": "1"
+}
+```
+
+写
+发送：
+fun: "writeBasicBIC" //
+baseId: 1 //1~32  (必须指定基站)
+params：{"value":"A455"}//
+
+| **Json字段** | **字段含义** | **赋值及含义** |
+| --- | --- | --- |
+| baseId | 基站ID | 1~32 |
+| value | bic码 | A455:中天电子<br>7955:网易<br>5A55:印度K12 |
+
+
+指令样例：
+```json
+{
+    "fun":"writeBasicBIC",
+    "baseId":1,
+	"baseSn":"2023031402",
+	"params": {
+        "value": "A455"
+    },
+    "packetTag":"1"
+}
+```
+
+返回
+接收：
+fun: "basicBIC" 
+baseId: 1//基站ID
+infos:{"value":"A455"}//
+
+指令样例：
+```json
+{
+	"fun": "basicBIC",
+	"baseId": 1,
+	"baseSn": "2023031402",
+	"infos": {
+		"value": "A455"
+	},
+	"packetTag": "1"
+}
+```
 
 ### 键盘
 
@@ -7225,3 +7286,4 @@ infos:{ "funId":"F0001","code":"10002"}//
 |F0118|最终提交状态|
 |F0119|后台签到|
 |F0120|键盘授权|
+|F0121|基站BIC码|