A High Precise GSM Sleep Timer Solution for Base-band Chip
Tonghe Li · Microcomputer Information · 2011
In deep sub-micron era, a base-band chip has a size of 25mm2, with 23 million gates. While 2G/3G modems take up more than 50 percent area of the whole chip, the research of low power dissipation of base-band chip is significantly valuable. The GSM modem of a base-band chip is in idle state for most of its time, so it should be clock-gated as to reducing power consumption. In this paper, a high precise GSM sleep timer algorithm is proposed, which could cut off the clock source of GSM modem precisely at the edge of TDMA frame. This algorithm can markedly reduce the power dissipation.