Methods, apparatus and systems for switching between bandwidth parts in a wireless communication are disclosed. In one embodiment, a method performed by a wireless communication node is disclosed. The method comprises: configuring a first type bandwidth parts (BWPs) for a wireless communication device, wherein the first type BWP includes a single BWP configured for downlink transmission to the wireless communication device; configuring at least two second type BWPs for the wireless communication device, wherein the at least two second type BWPs include two BWPs configured respectively for uplink and downlink transmissions regarding the wireless communication device; and transmitting indication information on a second type BWP in the at least two second type BWPs to the wireless communication device, wherein the indication information indicates a service type of a planned transmission of the wireless communication node on the first type BWP.