Qualcomm holds patents in CDMA, WCDMA, OFDMA technology and is the leader in the basebandchipset market based on this technology with a market share of around 65% as of 2010.
Additionally, Nvidia acquired Icera in the past quarter which will give it a chance to strengthen its position in the chipset market (see Nvidia Acquires Icera as BasebandChipset Market Heats Up).