Coexistence Performance Enhancement Techniques for DRP Based WLAN/WPAN and Cellular Radios Collocated in a Mobile Device

The incorporation of Bluetooth and Wireless LAN transceivers in a mobile devices poses design challenges associated with their coexistence with the cellular transceiver, as they often need to operate concurrently and their close proximity is inevitable. We present some recently developed techniques that transform the RF and analog circuit design complexities, typically encountered when targeting enhanced coexistence performances, into the digital domain, and demonstrate how these techniques allow the concurrent operation of two transceivers without each of them adversely impacting the performance of the other. The ideas presented have been implemented in a commercial Bluetooth single chip transceiver offered by Texas Instruments.