Anritsu has successfully completed testing of GCT Semiconductor’s 4G LTE-Advanced chip, GDM7243Q, using the MD8430A signaling tester with Rapid Test Designer (RTD). GCT Semiconductor is a supplier of advanced 4G mobile semiconductor solutions. The GDM7243Q is an dvanced FDD-TDD LTE chip with the world’s first 4X4 MIMO carrier aggregation for LTE.
4x4 Multiple Input Multiple Output (MIMO) involves the use of four transmit antennas at the LTE base station, and four receiver antennas inside the user equipment (UE) device, in order to increase spectral efficiency, achieve higher data throughout and improve coverage. Anritsu’s MD8430A is an LTE signaling tester that can simulate a base station with up to eight transmit antennas. The engineering team at GCT used the MD8430A controlled by RTD software to transmit at up to 300 Mbps over a 4x4 MIMO connection, and were able to verify that their chip could reliably sustain the connection over an extended period of time.
