CONTROLLING MULTIPLE MODEMS IN WIRELESS TERMINAL USING DYNAMICALLY VARYING MODEM TRANSMISSION POWER LIMITS

摘要

PROBLEM TO BE SOLVED: To provide a mobile wireless terminal in a plurality of concurrently operating communication links set up to properly control aggregate input and/or output power of a transmission signal amplifier to avoid distortion and maximize an overall communication bandwidth. SOLUTION: A mobile wireless terminal (MWT) includes multiple wireless modems. The multiple modems have their respective transmission outputs combined together and input into a transmission signal amplifier to produce an aggregate transmission output. The MWT is constrained to operate within a single aggregate transmission power limit. Each of the multiple modems has an individual transmission power limit related to the aggregate transmission power limit. An MWT controller adjusts the individual transmission power limits in the multiple modems based on the aggregate transmission power limit (702) of the MWT and respective transmission power estimates (712) reported from the multiple modems, to cause each individual transmission power limit to track corresponding individual modem transmission power. COPYRIGHT: (C)2011,JPO&INPIT