手机发射功率（Mobile power）.docVIP

手机发射功率（Mobile power） A: MS TXPOWER GSM900 33 DBM 2 w; 1 w DCS1800 30 DBM; Generally, the transmitting power of GSM base station is 43dbm (DSP) or 40dbn (h2d). The maximum emission power of mobile phone is 2W, about 33dbm. The launch power of the little lingtong base station is 500MV and 10MV. CDMA is currently about 38dbm, less than 10W. Mobile transmission power in PHS, GSM, cdma2000 1 x, wcdma and other agreement, be designed to be more and more complex, its importance is self-evident, which mobile phone transmission power is big, o good or less good? In fact, it is not a sensible answer to say that it is better or smaller, because when designing a mobile phone power, consider the following two aspects: 1. In the case of normal communication, the smaller the launch power, the better The smaller the power of the mobile phone, the smaller the phones power consumption, the longer the standby time and the longer the call time. Mobile phone transmission power is smaller, the less interference to other mobile phone with the system, it not only created a good wireless environment for other mobile phone with system, at the same time for cdma2000 1 x, wcdma, this means that the greater community capacity; The smaller the launch power, the smaller the interference with other wireless devices, which creates a good wireless environment for other wireless devices. In some cases, the phones launch power is expected to be adjusted higher in order to ensure the quality of the communication. Mobile phone in the neighborhood of the remote, in order to ensure cell signal after long distance transmission to base station, mobile phone signals can still be correct demodulation, which is mobile phone transmission power is large enough, in order to overcome the signal passes through the long distance transmission attenuation; Mobile phone by buildings or other barriers, in shadow areas, wireless mobile transmission power is big enough, in order to overcome the signal must go through many