Android GSM+CDMA基站定位
在googleAPI里提供了基站信息的获取类TelephonyManager，通过其方法getCellLocation得到CellLocation即可获取到基站相关信息
但CellLocation是个抽象类，所以在具体使用时需要判断接入的网络制式来用其子类CdmaCellLocation或GsmCellLocation 来强转
CdmaCellLocation对应CDMA网，GsmCellLocation对应GSM网
三大网络运营商的网络制式对应如下：
移动2G 网 --> GSM
移动3G 网 --> TD-SCDMA
电信2G 网 --> CDMA
电信3G 网 --> CDMA2000
联通2G 网 --> GSM
联通3G 网 --> WCDMA
由此可见移动，联通2G 网都可使用GsmCellLocation
电信2G,3G网则使用CdmaCellLocation
那么移动3G和联通3G又当如何
其实经本人亲测，移动3G网也可使用GsmCellLocation，听说是TD-SCDMA衍生于GSM，具体原因咱也不用纠结了，反正能用就是了
而联通的WCDMA据说也可使用GsmCellLocation，那姑且就是这样吧，有条件的童鞋试一试吧。
对于网络制式的判断调用TelephonyManager.getNetworkType()可有多种情况，如下：
<font face="Courier New" color="#6a3906">NETWORK_TYPE_UNKNOWN</font><font face="Courier New" color="#6a3906">NETWORK_TYPE_GPRS</font><font face="Courier New" color="#6a3906">NETWORK_TYPE_EDGE</font><font face="Courier New" color="#6a3906">NETWORK_TYPE_UMTS</font><font face="Courier New" color="#6a3906">NETWORK_TYPE_HSDPA</font><font face="Courier New" color="#6a3906">NETWORK_TYPE_HSUPA</font><font face="Courier New" color="#6a3906">NETWORK_TYPE_HSPA</font><font face="Courier New" color="#6a3906">NETWORK_TYPE_CDMA</font><font face="Courier New" color="#6a3906">NETWORK_TYPE_EVDO_0</font><font face="Courier New" color="#6a3906">NETWORK_TYPE_EVDO_A</font><font face="Courier New" color="#6a3906">NETWORK_TYPE_EVDO_B</font><font face="Courier New" color="#6a3906">NETWORK_TYPE_1xRTT</font><font face="Courier New" color="#6a3906">NETWORK_TYPE_IDEN</font><font face="Courier New" color="#6a3906">NETWORK_TYPE_LTE</font><font face="Courier New" color="#6a3906">NETWORK_TYPE_EHRPD</font>
通过对网络类型判断后获取对应基站信息代码片段如下:
- public static ArrayList<CellIDInfo> getCellIDInfo(Context context) throws Exception{
- TelephonyManager manager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
- ArrayList<CellIDInfo> CellID = new ArrayList<CellIDInfo>();
- CellIDInfo currentCell = new CellIDInfo();
- int type = manager.getNetworkType();
- Log.d(TAG, "getCellIDInfo--> NetworkType = " + type);
- int phoneType = manager.getPhoneType();
- Log.d(TAG, "getCellIDInfo--> phoneType = " + phoneType);
- if (type == TelephonyManager.NETWORK_TYPE_GPRS // GSM网
- || type == TelephonyManager.NETWORK_TYPE_EDGE
- || type == TelephonyManager.NETWORK_TYPE_HSDPA)
- {
- GsmCellLocation gsm = ((GsmCellLocation) manager.getCellLocation());
- if (gsm == null)
- {
- Log.e(TAG, "GsmCellLocation is null!!!");
- return null;
- }
- int lac = gsm.getLac();
- String mcc = manager.getNetworkOperator().substring(0, 3);
- String mnc = manager.getNetworkOperator().substring(3, 5);
- int cid = gsm.getCid();
- currentCell.cellId = gsm.getCid();
- currentCell.mobileCountryCode = mcc;
- currentCell.mobileNetworkCode = mnc;
- currentCell.locationAreaCode = lac;
- currentCell.radioType = "gsm";
- CellID.add(currentCell);
- // 获得邻近基站信息
- List<NeighboringCellInfo> list = manager.getNeighboringCellInfo();
- int size = list.size();
- for (int i = 0; i < size; i++) {
- CellIDInfo info = new CellIDInfo();
- info.cellId = list.get(i).getCid();
- info.mobileCountryCode = mcc;
- info.mobileNetworkCode = mnc;
- info.locationAreaCode = lac;
- CellID.add(info);
- }
- }else if (type == TelephonyManager.NETWORK_TYPE_CDMA // 电信cdma网
- || type == TelephonyManager.NETWORK_TYPE_1xRTT
- || type == TelephonyManager.NETWORK_TYPE_EVDO_0
- || type == TelephonyManager.NETWORK_TYPE_EVDO_A)
- {
- CdmaCellLocation cdma = (CdmaCellLocation) manager.getCellLocation();
- if (cdma == null)
- {
- Log.e(TAG, "CdmaCellLocation is null!!!");
- return null;
- }
- int lac = cdma.getNetworkId();
- String mcc = manager.getNetworkOperator().substring(0, 3);
- String mnc = String.valueOf(cdma.getSystemId());
- int cid = cdma.getBaseStationId();
- currentCell.cellId = cid;
- currentCell.mobileCountryCode = mcc;
- currentCell.mobileNetworkCode = mnc;
- currentCell.locationAreaCode = lac;
- currentCell.radioType = "cdma";
- CellID.add(currentCell);
- // 获得邻近基站信息
- List<NeighboringCellInfo> list = manager.getNeighboringCellInfo();
- int size = list.size();
- for (int i = 0; i < size; i++) {
- CellIDInfo info = new CellIDInfo();
- info.cellId = list.get(i).getCid();
- info.mobileCountryCode = mcc;
- info.mobileNetworkCode = mnc;
- info.locationAreaCode = lac;
- CellID.add(info);
- }
- }
- return CellID;
- }
从GOOGLE的API文档里总共有14钟网络类型，这里只罗列了其中7种，其他的主要是本人也不太清楚其对应到的网络制式是怎样的