Introduction - If you have any usage issues, please Google them yourself
GSM is the most important in the 3GPP standards, the industry referred to as GSM0505. This standard details the launch and receiving GSM technology, which GMSK ,8-PSK, BS, MS a variety of RF performance indicators are in the 05 series of documents to become the industry standard . Although it is in English, but the contents are hard simple read on understanding of GSM physical layer standards are very helpful, the wireless communications industry personnel necessary documents.