GSM代表全球移动通信系统,而CDMA代表码分多址GSM 使用 FDMA(频分多址)和 TDMA(时分多址)。 GSM 支持同时传输数据和语音,而 CDMA 没有此功能。
GSM 和 CDMA 的主要区别在于,在 GSM 中,客户信息放在 SIM 卡上,SIM 卡可以移动到新手机上。而只有来自一组白名单公司的手机才能用于 CDMA 网络。
GSM和CDMA的区别如下:
Serial No. | GSM | CDMA |
---|---|---|
1. Full form | Global System for Mobile communication. | Code Division Multiple Access. |
2. Technology used | FDMA(Frequency division multiple access) and TDMA (Time division multiple access). | CDMA(Code division multiple access). |
3. Availability | GSM is globally widely used and available. | CDMA is available in fewer countries and carriers. |
4. Data speed rate | 42Mbps in HSPA (3G). | 3.6Mbps in CDMA. |
5.Features | GSM supports transmitting data and voice both at once. | CDMA does not support this feature. |
6. Customer Information | Stored in a SIM card. | Stored in a headset or phone. |