| 摘要 |
<p>The present invention provides a method of cancelling interference caused by a transmitter of a first wireless system 10 to a receiver of a second wireless system 20. The transmitter and receiver operate in adjacent frequency bands. The first wireless system may use TDD and the second wireless system FDD. The method comprises receiving a signal 21 at the second wireless system that is corrupted by interference 50 caused by a wireless transmission 11 from the first wireless system. The second wireless system 20 is provided 60 with transmitted symbols of the wireless transmission from the first wireless system. These symbols may be either baseband or RF signals transmitted using a dedicated link such as a cable 60. The signal 21 received at the second wireless system is processed using the transmitted symbols of the wireless transmission from the first system in order to cancel the interference. Successive interference cancellation or linear interference cancellation (e.g. Wiener filtering) may be applied. The transmitter and receiver may be co-located, e.g. within a base station or multi-mode user equipment.</p> |
