Alan Viverette | 3da604b | 2020-06-10 18:34:39 +0000 | [diff] [blame] | 1 | package android.telephony; |
| 2 | |
| 3 | import static android.telephony.ServiceState.DUPLEX_MODE_FDD; |
| 4 | import static android.telephony.ServiceState.DUPLEX_MODE_TDD; |
| 5 | import static android.telephony.ServiceState.DUPLEX_MODE_UNKNOWN; |
| 6 | |
| 7 | import android.telephony.AccessNetworkConstants.EutranBand; |
| 8 | import android.telephony.ServiceState.DuplexMode; |
| 9 | |
| 10 | |
| 11 | /** |
| 12 | * Utilities to map between radio constants. |
| 13 | * |
| 14 | * @hide |
| 15 | */ |
| 16 | public class AccessNetworkUtils { |
| 17 | |
| 18 | // do not instantiate |
| 19 | private AccessNetworkUtils() {} |
| 20 | |
| 21 | public static final int INVALID_BAND = -1; |
| 22 | |
| 23 | /** |
| 24 | * Gets the duplex mode for the given EUTRAN operating band. |
| 25 | * |
| 26 | * <p>See 3GPP 36.101 sec 5.5-1 for calculation |
| 27 | * |
| 28 | * @param band The EUTRAN band number |
| 29 | * @return The duplex mode of the given EUTRAN band |
| 30 | */ |
| 31 | @DuplexMode |
| 32 | public static int getDuplexModeForEutranBand(int band) { |
| 33 | if (band == INVALID_BAND) { |
| 34 | return DUPLEX_MODE_UNKNOWN; |
| 35 | } |
| 36 | |
| 37 | if (band > EutranBand.BAND_88) { |
| 38 | return DUPLEX_MODE_UNKNOWN; |
| 39 | } else if (band >= EutranBand.BAND_65) { |
| 40 | return DUPLEX_MODE_FDD; |
| 41 | } else if (band >= EutranBand.BAND_33) { |
| 42 | return DUPLEX_MODE_TDD; |
| 43 | } else if (band >= EutranBand.BAND_1) { |
| 44 | return DUPLEX_MODE_FDD; |
| 45 | } |
| 46 | |
| 47 | return DUPLEX_MODE_UNKNOWN; |
| 48 | } |
| 49 | |
| 50 | /** |
| 51 | * Gets the EUTRAN Operating band for a given downlink EARFCN. |
| 52 | * |
| 53 | * <p>See 3GPP 36.101 sec 5.7.3-1 for calculation. |
| 54 | * |
| 55 | * @param earfcn The downlink EARFCN |
| 56 | * @return Operating band number, or {@link #INVALID_BAND} if no corresponding band exists |
| 57 | */ |
| 58 | public static int getOperatingBandForEarfcn(int earfcn) { |
| 59 | if (earfcn > 70645) { |
| 60 | return INVALID_BAND; |
| 61 | } else if (earfcn >= 70596) { |
| 62 | return EutranBand.BAND_88; |
| 63 | } else if (earfcn >= 70546) { |
| 64 | return EutranBand.BAND_87; |
| 65 | } else if (earfcn >= 70366) { |
| 66 | return EutranBand.BAND_85; |
| 67 | } else if (earfcn > 69465) { |
| 68 | return INVALID_BAND; |
| 69 | } else if (earfcn >= 69036) { |
| 70 | return EutranBand.BAND_74; |
| 71 | } else if (earfcn >= 68986) { |
| 72 | return EutranBand.BAND_73; |
| 73 | } else if (earfcn >= 68936) { |
| 74 | return EutranBand.BAND_72; |
| 75 | } else if (earfcn >= 68586) { |
| 76 | return EutranBand.BAND_71; |
| 77 | } else if (earfcn >= 68336) { |
| 78 | return EutranBand.BAND_70; |
| 79 | } else if (earfcn > 67835) { |
| 80 | return INVALID_BAND; |
| 81 | } else if (earfcn >= 67536) { |
| 82 | return EutranBand.BAND_68; |
| 83 | } else if (earfcn >= 67366) { |
| 84 | return INVALID_BAND; // band 67 only for CarrierAgg |
| 85 | } else if (earfcn >= 66436) { |
| 86 | return EutranBand.BAND_66; |
| 87 | } else if (earfcn >= 65536) { |
| 88 | return EutranBand.BAND_65; |
| 89 | } else if (earfcn > 60254) { |
| 90 | return INVALID_BAND; |
| 91 | } else if (earfcn >= 60140) { |
| 92 | return EutranBand.BAND_53; |
| 93 | } else if (earfcn >= 59140) { |
| 94 | return EutranBand.BAND_52; |
| 95 | } else if (earfcn >= 59090) { |
| 96 | return EutranBand.BAND_51; |
| 97 | } else if (earfcn >= 58240) { |
| 98 | return EutranBand.BAND_50; |
| 99 | } else if (earfcn >= 56740) { |
| 100 | return EutranBand.BAND_49; |
| 101 | } else if (earfcn >= 55240) { |
| 102 | return EutranBand.BAND_48; |
| 103 | } else if (earfcn >= 54540) { |
| 104 | return EutranBand.BAND_47; |
| 105 | } else if (earfcn >= 46790) { |
| 106 | return EutranBand.BAND_46; |
| 107 | } else if (earfcn >= 46590) { |
| 108 | return EutranBand.BAND_45; |
| 109 | } else if (earfcn >= 45590) { |
| 110 | return EutranBand.BAND_44; |
| 111 | } else if (earfcn >= 43590) { |
| 112 | return EutranBand.BAND_43; |
| 113 | } else if (earfcn >= 41590) { |
| 114 | return EutranBand.BAND_42; |
| 115 | } else if (earfcn >= 39650) { |
| 116 | return EutranBand.BAND_41; |
| 117 | } else if (earfcn >= 38650) { |
| 118 | return EutranBand.BAND_40; |
| 119 | } else if (earfcn >= 38250) { |
| 120 | return EutranBand.BAND_39; |
| 121 | } else if (earfcn >= 37750) { |
| 122 | return EutranBand.BAND_38; |
| 123 | } else if (earfcn >= 37550) { |
| 124 | return EutranBand.BAND_37; |
| 125 | } else if (earfcn >= 36950) { |
| 126 | return EutranBand.BAND_36; |
| 127 | } else if (earfcn >= 36350) { |
| 128 | return EutranBand.BAND_35; |
| 129 | } else if (earfcn >= 36200) { |
| 130 | return EutranBand.BAND_34; |
| 131 | } else if (earfcn >= 36000) { |
| 132 | return EutranBand.BAND_33; |
| 133 | } else if (earfcn > 10359) { |
| 134 | return INVALID_BAND; |
| 135 | } else if (earfcn >= 9920) { |
| 136 | return INVALID_BAND; // band 32 only for CarrierAgg |
| 137 | } else if (earfcn >= 9870) { |
| 138 | return EutranBand.BAND_31; |
| 139 | } else if (earfcn >= 9770) { |
| 140 | return EutranBand.BAND_30; |
| 141 | } else if (earfcn >= 9660) { |
| 142 | return INVALID_BAND; // band 29 only for CarrierAgg |
| 143 | } else if (earfcn >= 9210) { |
| 144 | return EutranBand.BAND_28; |
| 145 | } else if (earfcn >= 9040) { |
| 146 | return EutranBand.BAND_27; |
| 147 | } else if (earfcn >= 8690) { |
| 148 | return EutranBand.BAND_26; |
| 149 | } else if (earfcn >= 8040) { |
| 150 | return EutranBand.BAND_25; |
| 151 | } else if (earfcn >= 7700) { |
| 152 | return EutranBand.BAND_24; |
| 153 | } else if (earfcn >= 7500) { |
| 154 | return EutranBand.BAND_23; |
| 155 | } else if (earfcn >= 6600) { |
| 156 | return EutranBand.BAND_22; |
| 157 | } else if (earfcn >= 6450) { |
| 158 | return EutranBand.BAND_21; |
| 159 | } else if (earfcn >= 6150) { |
| 160 | return EutranBand.BAND_20; |
| 161 | } else if (earfcn >= 6000) { |
| 162 | return EutranBand.BAND_19; |
| 163 | } else if (earfcn >= 5850) { |
| 164 | return EutranBand.BAND_18; |
| 165 | } else if (earfcn >= 5730) { |
| 166 | return EutranBand.BAND_17; |
| 167 | } else if (earfcn > 5379) { |
| 168 | return INVALID_BAND; |
| 169 | } else if (earfcn >= 5280) { |
| 170 | return EutranBand.BAND_14; |
| 171 | } else if (earfcn >= 5180) { |
| 172 | return EutranBand.BAND_13; |
| 173 | } else if (earfcn >= 5010) { |
| 174 | return EutranBand.BAND_12; |
| 175 | } else if (earfcn >= 4750) { |
| 176 | return EutranBand.BAND_11; |
| 177 | } else if (earfcn >= 4150) { |
| 178 | return EutranBand.BAND_10; |
| 179 | } else if (earfcn >= 3800) { |
| 180 | return EutranBand.BAND_9; |
| 181 | } else if (earfcn >= 3450) { |
| 182 | return EutranBand.BAND_8; |
| 183 | } else if (earfcn >= 2750) { |
| 184 | return EutranBand.BAND_7; |
| 185 | } else if (earfcn >= 2650) { |
| 186 | return EutranBand.BAND_6; |
| 187 | } else if (earfcn >= 2400) { |
| 188 | return EutranBand.BAND_5; |
| 189 | } else if (earfcn >= 1950) { |
| 190 | return EutranBand.BAND_4; |
| 191 | } else if (earfcn >= 1200) { |
| 192 | return EutranBand.BAND_3; |
| 193 | } else if (earfcn >= 600) { |
| 194 | return EutranBand.BAND_2; |
| 195 | } else if (earfcn >= 0) { |
| 196 | return EutranBand.BAND_1; |
| 197 | } |
| 198 | |
| 199 | return INVALID_BAND; |
| 200 | } |
| 201 | } |