diff --git a/docs/Application_guide/en/media/network-comm/nic/cellular/cellular-history-1.png b/docs/Application_guide/en/media/network-comm/nic/cellular/cellular-history-1.png
index 322dcbfa92b0ce660b61a4206ef4e45e804b2a94..50daaed6001c1407ee95f36dc1015d883d5e9699 100644
Binary files a/docs/Application_guide/en/media/network-comm/nic/cellular/cellular-history-1.png and b/docs/Application_guide/en/media/network-comm/nic/cellular/cellular-history-1.png differ
diff --git a/docs/Application_guide/en/network-comm/nic/cellular/README.md b/docs/Application_guide/en/network-comm/nic/cellular/README.md
index 842c16f554650fda39413b44fe9cca62d231c2e8..2e116274428c65b131b72c76bf61fbadf0e2265d 100644
--- a/docs/Application_guide/en/network-comm/nic/cellular/README.md
+++ b/docs/Application_guide/en/network-comm/nic/cellular/README.md
@@ -10,6 +10,9 @@ In the development of cellular wireless communication, GSM, UMTS, LTE, and other
 
 ![](../../../media/network-comm/nic/cellular/cellular-history-1.png)
 
+【Note】 LTE-A Pro (4.5G*) :
+In the 3GPP technical specification, 4.5G is named LTE-Advanced Pro and is the new construction benchmark for mobile broadband networks. It includes Release 13, which has already been released, and Release 14, which is coming next.
+
 To make it easier for you to understand, the development roadmap of mobile communication technology is simplified as follows:
 
 ![](../../../media/network-comm/nic/cellular/cellular-history-2.png)
diff --git "a/docs/Application_guide/zh/media/network-comm/nic/cellular/\347\247\273\345\212\250\351\200\232\344\277\241\345\217\221\345\261\225\345\216\206\345\217\262.png" "b/docs/Application_guide/zh/media/network-comm/nic/cellular/\347\247\273\345\212\250\351\200\232\344\277\241\345\217\221\345\261\225\345\216\206\345\217\262.png"
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Binary files "a/docs/Application_guide/zh/media/network-comm/nic/cellular/\347\247\273\345\212\250\351\200\232\344\277\241\345\217\221\345\261\225\345\216\206\345\217\262.png" and "b/docs/Application_guide/zh/media/network-comm/nic/cellular/\347\247\273\345\212\250\351\200\232\344\277\241\345\217\221\345\261\225\345\216\206\345\217\262.png" differ
diff --git a/docs/Application_guide/zh/network-comm/nic/cellular/README.md b/docs/Application_guide/zh/network-comm/nic/cellular/README.md
index 2681fcea358d98b90ffbe1f00f534730c47a071e..0d277e70a9626e8e888021f5c45b4c6f13c9c8fc 100644
--- a/docs/Application_guide/zh/network-comm/nic/cellular/README.md
+++ b/docs/Application_guide/zh/network-comm/nic/cellular/README.md
@@ -10,6 +10,8 @@
 
 ![移动通信发展历史](../../../media/network-comm/nic/cellular/移动通信发展历史.png)
 
+【注释】LTE-A Pro（4.5G*）：
+在3GPP技术规范中，4.5G被命名为LTE-Advanced Pro，是移动宽带网络新的建设基准。它包括已经发布的Release 13和下一步将会到来的Release 14。
 
 
 为了能更加简单明了的让读者理解，我们可以将移动通信技术的发展路线简化如下：