1 //
2 // Copyright (C) 2021 The Android Open Source Project
3 //
4 // Licensed under the Apache License, Version 2.0 (the "License");
5 // you may not use this file except in compliance with the License.
6 // You may obtain a copy of the License at
7 //
8 //      http://www.apache.org/licenses/LICENSE-2.0
9 //
10 // Unless required by applicable law or agreed to in writing, software
11 // distributed under the License is distributed on an "AS IS" BASIS,
12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 // See the License for the specific language governing permissions and
14 // limitations under the License.
15 
16 #pragma once
17 
18 namespace cuttlefish {
19 
20 // Constants representing a not known or not detectable value for different
21 // signal strength parameters.
22 constexpr int kRssiUnknownValue = 99;
23 constexpr int kBerUnknownValue = 99;
24 constexpr int kDbmUnknownValue = -1;
25 constexpr int kEcioUnknownValue = -1;
26 constexpr int kSnrUnknownValue = -1;
27 
28 // Constants representing the range of values of different signal strength
29 // parameters.
30 constexpr auto kRssiRange = std::make_pair(4, 30);
31 constexpr auto kDbmRange = std::make_pair(-120, -4);
32 constexpr auto kRsrpRange = std::make_pair(-140, -44);
33 
34 }  // namespace cuttlefish
35