tree 481fea196c9dc804e5f26bb1756100f60d744db4
parent e0c471f05a40c5dc60873d8a9e7214d947877283
author Kai Shi <kaishi@google.com> 1573706401 -0800
committer Kai Shi <kaishi@google.com> 1573879578 +0000

Wifi: add throughputPredictor and throughputScorer classes

They are used in WifiNetworkSelector for predict throughput and
calculate network selection score with Nss, Rssi, channelWidth,
wifiStandard and channelUtilization info collected from scan and
bluetoothConnected information from BluetoothAdaptor broadcast message.

Bug: 141770991
Test: Wifi unit test with frameworks/opt/net/wifi/tests/wifitests/runtests.sh
Test: run manual test to make sure throughput and score are calculated
      correctly with various APs with 2, 4 and 8 antennas in 20, 40 and 80MHz
      modes with and without BT connected.

Change-Id: I1ae36460d2f719cce157d94f5b65039597878f49