我正在读这个答案我需要更好地理解:
"选择 gsm " 和"选择 wcdma " 之间的技术区别是什么?为了节省电池寿命,我计划从自动切换到手动模式,我想知道如果我坚持GSM或WCDMA会发生什么。
我在HTC HD2上使用Android 2.2 Froyostone。
我正在读这个答案我需要更好地理解:
"选择 gsm " 和"选择 wcdma " 之间的技术区别是什么?为了节省电池寿命,我计划从自动切换到手动模式,我想知道如果我坚持GSM或WCDMA会发生什么。
我在HTC HD2上使用Android 2.2 Froyostone。
I was reading this answer and I need to comprehend this better:
What is the technical difference between "selecting GSM" and "selecting WCDMA" in Network Mode settings menu? To save battery life, I'm planning to switch from the automatic to the manual mode, and I want to know what happens if I stick to GSM or WCDMA.
I am on HTC HD2 with Android 2.2 FroyoStone.
手机基本上在这里询问您,您是否希望仅使用2G数据网络,仅3G数据网络,或者根据最佳方式自动切换它们?
gsm 设置将您访问2g(和2.5g)数据网络使用 gprs 或边缘数据标准和速度。
wcdma 将您访问3g 网络(使用正常的3g或 hsdpa < / a>标准和速度)。
正常设置将是 auto ,这让手机自动选择它可以在您当前所在的区域中拾取的最佳(通常最快)的数据网络,但正如此所涉及的那样使用所有2G和3G芯片和天线,这使用的功率比强制手机始终使用一个或另一个。
采摘GSM的缺点是它将阻止您的手机连接到高速3G数据网络,但会将电力节省为3G(WCDMA)芯片和天线。
采摘WCDMA的缺点是它根本将阻止您的手机使用2G网络(因此,如果您在没有3G支持的区域,那么您的手机就没有数据信号),但如果您在您知道的一个区域有良好的3G信号,然后选择它将节省电量。
What the phone's essentially asking you here is, do you want to use only 2G data networks, only 3G data networks, or automatically switch between them depending which is best?
The GSM setting will give you access to 2G (and 2.5G) data networks using GPRS or EDGE data standards and speeds.
WCDMA will give you access to 3G networks (using either normal 3G or HSDPA standards and speeds).
The normal setting would be Auto, which lets the phone automatically select the best (normally fastest) data network that it can pick up in the area that you're currently in, but as this involves using all the 2G and 3G chips and antennae this uses more power than forcing the phone to always use one or the other.
The downside to picking GSM is that it will stop your phone connecting to high speed 3G data networks, but will save power as the 3G (WCDMA) chips and antenna won't be used.
The downside to picking WCDMA is that it will stop your phone from using 2G networks at all (so if you're in an area with no 3G support, then your phone will have no data signal) but if you're in an area that you know has good 3G signal, then selecting this will save power.
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