+------+   +--------+   +--------+   +-------+   +-------+   +------+
|      |   |        |   |        |   |       |   |       |   |      |
| CCM  |   | C-MADP |   | Wi-Fi  |   |  LTE  |   |  NCM  |   |N-MADP|
|      |   |        |   |  N/W   |   |  N/W  |   |       |   |      |
+------+   +--------+   +--------+   +-------+   +-------+   +------+
+-------------------------------------------------------------------+
|   Traffic over LTE and Wi-Fi in UL And DL over MPTCP              |
++------------+-------------+-------------+------------+--------+---+
 |            |             |             |            |        |
 |24. MX Meas Report (Wi-Fi RSSI, LTE RSRP, UL/DL TPUT)| +------+---+
 +------------+-------------+-------------+----------->| |Reports of|
 |            |             |             |            | |bad Wi-Fi |
 |            |             |             |            | |UL tput   |
 |            |             |             |            | +----------+
 |25. MX Traffic Steering REQ (UL/DL Access, TFTs)     | +----------+
 |<---------------------------------------+------------+ |Disallow  |
 |            |             |             |            | |use of    |
 |26. MX Traffic Steering RSP (...)       |            | |Wi-Fi UL  |
 |------------+-------------+------------------------->| +------+---+
 |            |             |             |            |        |
++------------+-------------+-------------+------------+--------+---+
| UL data to use TCP subflow over LTE link only,                    |
|    aggregated Wi-Fi+LTE capacity for DL                           |
++------------+-------------+-------------+------------+--------+---+
 |            |             |             |            |        |
 +            +             +             +            +        +