Qualcomm is engaged in the development and commercialization of CDMA and orthogonal frequency division multiple access (OFDMA) family of technologies, including LTE for cellular wireless communication applications. It operates through three business units—Qualcomm CDMA Technologies (QCT), Qualcomm Technology Licensing (QTL), and Qualcomm Strategic Initiatives (QSI). The QCT segment develops and supplies integrated circuits and system software based on CDMA, OFDMA, and other technologies for use in voice and data communications, networking, application processing, multimedia, and global positioning system products. The QTL segment grants licenses or provides rights to use a portion of its intellectual property for manufacturing certain wireless products, including CDMA2000, WCDMA, CDMA TDD, and/or LTE standards. The QSI segment makes strategic investments that are focused on new opportunities for its technologies and support the design and introduction of new products and services. Qualcomm Atheros (US), CSR (UK), SnapTrack (US), Wilocity (US), and Airgo Networks (US) are some of the major subsidiaries of Qualcomm. In the 5G infrastructure market, the company is involved in developing 5G chipset for smartphones as well as for network products; designing; and establishing the commercial 5G network with the help of other companies such as Ericsson. The company designed the 5G modem with the help of Snapdragon X50 chip to support the early adoption of 5G wireless network.