METHOD FOR CONFIGURING TRANSMISSION PORT OF A DOWNLINK REFERENCE SIGNAL, AND COMMUNICATION APPARATUS

• Main Authors: LIU, Yong, GE, Shibin, JIN, Huangping
• Format: Patent
• Language: English; French; German
• Published: 10.08.2022
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

This application provides a method for configuring a transmit port of a downlink reference signal and a communication apparatus. A network device indicates, to a terminal device by using first indication information, configurations corresponding to a plurality of transmit ports. Each transmit port may be associated with one piece of delay information, transmit ports associated with same delay information correspond to a same configuration, and at least two transmit ports associated with different delay information correspond to different configurations. The configuration includes one or more of a precoding resource bundling granularity, a subband size, and a pilot density. The network device may select a proper configuration based on different delay information, for example, may use different resource bundling granularities and/or different pilot densities. The terminal device may receive, based on a configuration corresponding to each port, downlink reference signals sent by the plurality of transmit ports. A channel estimated by the terminal device based on this is more accurate, thereby facilitating obtaining a more accurate channel measurement result and improving system performance.