Patent ID: 7508864

Claim:
A method of canceling interference in a received signal wherein the interference includes at least a pilot signal interference component and another interference signal component, the method comprising: suppressing a linear interference according to a linear transform equation which includes: w = min ⁢ ⁢ E ⁢  s b o , k o , s o - w H ⁡ ( v - ∑ b = 1 B ⁢ ⁢ α b ⁢ H b ⁢ c b , o , s ⁢ A b , pilot )  2 , where: v - ∑ b = 1 B ⁢ ⁢ α b ⁢ H b ⁢ c b , o , s ⁢ A b , pilot depicted an effective received signal with the pilot signal interference; E—is indicating an expectation operation; S b o ,k o ,S o —is a desired symbol; C b o ,k o ,S o —contains chips of a desired user's symbol; A b,pilot —is a pilot signal transmit gain from a base station b; H b —is a Multipath channel matrix for the base station b; (.) H —is indicating conjugate symmetric; α b —is a fraction of pilot signal canceled for a base station b; w—is a linear transform to be solved, optimizing the linear transform equation of a linear interference suppressor based on an assumed a priori information on characteristics of the received signal and a pilot signal interference canceller operation; jointly operating said linear interference suppressor with a pilot signal interference canceller to jointly cancel the pilot signal interference component and the other interference component of the receive signal.