A heterogeneous System-on-Chip (SoC) architecture for mobile hand-held devices is proposed to overcome the battery bottleneck in these devices. This SoC contains processing tiles of different granularities. The Montium coarse-grain reconfigurable tile processor is presented. Also, an introduction to HiperLAN/2 baseband processing is given. The implementation of a HiperLAN/2 receiver on the Montium reconfigurable architecture is explained in detail. The hardware of this implemented receiver has been simulated and the performance figures are given. The configuration overhead for the receiver is very small, which enables dynamic reconfiguration. The required computational performance can be obtained at very low clock frequencies. THe Montium coarse-grain reconfigurable architecture enables an energy and area efficient implementation of a HiperLAN/2 receiver.