Apple is suing Qualcomm for $1 billion, saying that the mobile chip maker has been dramatically overcharging it for the use of basic patents, according to CNBC. The lawsuit comes just days after the US Federal Trade Commission began suing Qualcomm for anti-competitive practices over the same issue. The commission said that Qualcomm had been forcing phone manufactures to pay “disproportionately high” fees for use of patents necessary to make a smartphone.