Patent ID: 7933255

Claim:
A radio frequency (RF) multi-antenna access point enhancement circuit comprising: a multi-antenna signal processing circuit configured to be situated in a first access point and adapted to: operate with a first baseband processor, so that the first baseband processor handles data transmissions in a first mode between the first access point and a second access point under a first channel transmission condition, without multi-antenna signal processing by the multi-antenna signal processing circuit, and the multi-antenna signal processor handles data transmissions in a second mode between the first access point and the second access point under a second channel transmission condition; receive M independent RF modulated input signals from the second access point when the second channel transmission mode exists between the first access point and the second access point; and process the M independent RF modulated input signals using a channel mixing matrix to extract N independent data signals transmitted by the second access point; wherein the multi-antenna signal processing circuit operates selectively with the first baseband processor to demodulate RF signals received in a channel from the second access point.