如何访问LTE NAS消息? [英] How to access LTE NAS message?

问题描述

是否可以通过Android平台从LTE网络访问NAS消息?我拥有解码所需的所有软件，但无法获取实际消息.

Is there any way to access NAS messages from LTE network on Android platform? I have all needed software for decoding, but can't get actual message.

推荐答案

NAS消息存在于基带日志(调制解调器)中.因此，您必须捕获调制解调器日志才能检查NAS消息(或任何其他OTA消息).

NAS messages are present in Baseband log (modem). So, you have to capture Modem Logs in order to check NAS message (or any other OTA Message).

这些消息未到达AP(android)端.因此，这些消息仅出现在调制解调器日志中.

Those messages does not reach the AP (android) side. So, those messages are only present in Modem Logs.

每个调制解调器供应商都将调制解调器日志保存为其他格式.他们也有自己的工具来解码这些日志.某些调制解调器供应商是高通(具有QXDM/QCAT工具)，Marvell，展讯，英特尔(或英飞凌)，博通(已不存在)，三星等.

Each modem vendor saves modem log in a different format. They also has its own tool to decode those logs. Some modem vendors are Qualcomm (which has QXDM/QCAT tool), Marvell, Spreadtrum, Intel (or Infineon), Broadcomm (which does not exist anymore), Samsung etc.

此外，每个品牌(摩托罗拉，三星，LG，华硕等)可能都有不同的实现方式来保存日志(隐藏的字符串通常在最终用户版本中被阻止，或者将日志保存在sdcard中).

Moreover, each Brand (Motorola, Samsung, LG, Asus etc) may have a different implementation to save the logs (hidden keystrings which are usually blocked in end-user version or save logs in the sdcard etc).

因此，例如:对于Nexus 5，您可以搜索如何保存UART日志，并且由于它使用了高通调制解调器，我想您可以使用QXDM打开和读取日志.但是，在不同的型号/品牌下，相同的步骤将无效.

So, for example: For Nexus 5, you can search how to save UART Logs and since it uses a Qualcomm modem, I think you can open and read the log using QXDM. However, same procedure wont work in a different model/brand.

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