WCDMA is a European technology.
Qualcomm has its own patent for CDMA2000.
GSM？ This is a European standard.
TDSCDMA is? Datang Telecom developed by Ericsson technology.
This standard is a 3G standard formulated by China. 1On June 29th, 1999, the former Institute of Telecommunications Science and Technology of China Ministry of Posts and Telecommunications (now Datang Telecom Technology Co., Ltd.) proposed the standard to ITU (the former standard researcher was Siemens, who sold its core patent to Datang Telecom for independent research and development of WCDMA, and later, when joining the 3G standard, officials of the Ministry of Information Industry (now the Ministry of Industry and Information Technology) requested its support on the condition that telecom manufacturers such as Ericsson and Nokia were in the China market). This standard integrates smart antenna, synchronous CDMA and SDR. In addition, due to the huge communication market in China, the standard has attracted the attention of major telecom equipment manufacturers, and more than half of the equipment manufacturers in the world have announced that they can produce telecom equipment supporting TD-SCDMA standard.
All three 3G's have "CDMA", so they are all related to Qualcomm.