diff --git a/overlay/frameworks/base/core/res/res/values/config.xml b/overlay/frameworks/base/core/res/res/values/config.xml
index 0a7e02b..dc77736 100644
--- a/overlay/frameworks/base/core/res/res/values/config.xml
+++ b/overlay/frameworks/base/core/res/res/values/config.xml
@@ -131,6 +131,24 @@
         <item>ethernet,9,9,9,-1,true</item>
     </string-array>
 
+    <!-- Configure mobile tcp buffer sizes in the form:
+         rat-name:rmem_min,rmem_def,rmem_max,wmem_min,wmem_def,wmem_max
+         If no value is found for the rat-name in use, the system default will be applied.
+    -->
+    <string-array name="config_mobile_tcp_buffers">
+        <item>5gnr:2097152,6291456,16777216,512000,2097152,8388608</item>
+        <item>lte:2097152,4194304,8388608,262144,524288,1048576</item>
+        <item>lte_ca:4096,6291456,12582912,4096,1048576,2097152</item>
+        <item>umts:4094,87380,1220608,4096,16384,1220608</item>
+        <item>hspa:4094,87380,1220608,4096,16384,1220608</item>
+        <item>hsupa:4094,87380,1220608,4096,16384,1220608</item>
+        <item>hsdpa:4094,87380,1220608,4096,16384,1220608</item>
+        <item>hspap:4094,87380,1220608,4096,16384,1220608</item>
+        <item>edge:4093,26280,35040,4096,16384,35040</item>
+        <item>gprs:4092,8760,11680,4096,8760,11680</item>
+        <item>evdo:4094,87380,524288,4096,16384,262144</item>
+    </string-array>
+
     <!-- This string array should be overridden by the device to present a list of radio
          attributes.  This is used by the connectivity manager to decide which networks can coexist
          based on the hardware -->