getPsc（）使用GsmCellLocation总是返回-1 [英] getPsc() using GsmCellLocation always returns -1

问题描述

我成功地获得 GsmCellLocation 和相关的CID和LAC信息，但服务小区的PSC（主扰code）总是与初始化回来值-1。
任何人都能够得到服务小区的真正价值PSC？

I'm successfully getting GsmCellLocation and related cid and lac information but the PSC (primary scrambling code) of the serving cell is always coming back with the initialized value -1. Anyone able to get the real PSC value of the serving cell?

telephonyManager = (TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
GsmCellLocation cellLocation = (GsmCellLocation) telephonyManager.getCellLocation();
psc = cellLocation.getPsc();
Log.d(TAG, "PSC = " + psc);

我拥有所有权限必须的。我的邻居列表返回空以及但这并不是目前关注的问题。

I have all the permissions necessary. My neighbor list returns empty as well but that's not a concern at the moment.

推荐答案

PSC仅适用于UMTS网络。结果
检查网络类型<一个href=\"http://developer.android.com/reference/android/telephony/TelephonyManager.html#getNetworkType%28%29\"相对=nofollow> getNetworkType 如果是 NETWORK_TYPE_UMTS ，而不是 NETWORK_TYPE_EDGE

PSC is available only on UMTS network.
Check network type getNetworkType if it's NETWORK_TYPE_UMTS and not NETWORK_TYPE_EDGE

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