| 摘要 |
The present application relates to the technical field of wireless communications, and, in particular, to a method, system and device for performing downlink transmission, which are used for solving the problem existing in the prior art of severe interference on communication of an adjacent-frequency user equipment that may be caused when an uplink frequency band is occupied to perform downlink transmission. In the embodiments of the present application, a downlink signal is sent to a user equipment on an available frequency band of uplink frequency bands, and no signal is sent and received on a guard frequency band of the uplink frequency bands, wherein the guard frequency band is located in a high-frequency part and/or a low frequency part of the uplink frequency bands. Since no signal is sent and received on the guard frequency band of the uplink frequency bands, interference on communication of an adjacent-frequency user equipment when an uplink frequency band is occupied to perform downlink transmission is reduced, and the system performance is improved. |
