A method performed by a wireless terminal device is provided, and the method performed by a wireless terminal device includes: receiving a physical random-access channel (PRACH) configuration information from a base station or wireless access node, the PRACH configuration information indicating a PRACH time slot and intra-time-slot symbol positions of a plurality of PRACH occasions within the PRACH time slot for transmitting a random-access preamble, identifying at least one target time slot; relocating at least one of the plurality of PRACH occasions to the at least one target time slot.