Method and Apparatus of an Architecture to Switch Equalization Based on Signal Delay Spread

摘要

The 60 GHz channel between the transmitter and receiver can have AWGN characteristics allowing a Time Domain Equalizer (TDE) to be used at the receiver instead of a Frequency Domain Equalizer (FDE). The complexity of performing matrix inversion on a received signal is reduced when directional antennas are used in a 60 GHz system. Incorporating the TDE in place of the FDE saves almost an order of magnitude in power dissipation. For portable units, such a savings is beneficial since the battery life can be extended. The signal quality of wireless channel is based on the characteristics of the received signal to switch the equalization operation from a system performing FDE to TDE and vice versa. The receiver adapts to the received signal to reduce the power dissipation of the system.

主权项

1. An apparatus for selecting one of two blocks comprising:
an input signal coupled to an input node of a first block and a second block, wherein said input signal processed by said first block generates a measurable characteristic; and a first switch configured to disable or enable said second block from drawing power from a power supply if said measurable characteristic at an output node of said first block has a first parameter less than or equal to a first value.