A method for performing adaptive multi-link aggregation dispatching control in multi-link operation, in the following also referred to as MLO, architecture, the method being performed by a wireless transceiver device (110; 120) within a wireless communications system, the method comprising: utilizing the wireless transceiver device (110; 120) to communicate with another device within the wireless communications system to set up multiple links respectively corresponding to multiple predetermined radio frequency bands, to allow the wireless transceiver device (110; 120) and the other device to perform data transmission through the multiple links; and performing a dispatching management procedure to selectively perform dispatching regarding a first link among the multiple links, for transmitting a first physical layer, in the following also referred to as PHY, protocol data unit, in the following also referred to as PPDU, corresponding to a block acknowledgment, in the following also referred to as BA, window through the first link; characterized in that the dispatching regarding the first link comprises temporarily reducing a number of medium access control, in the following also referred to as MAC, protocol data units, in the following also referred to as MPDUs, corresponding to the BA window in the first PPDU; wherein the BA window represents any BA window among multiple BA windows, and the multiple BA windows comprises a first BA window and a second BA window; and the wireless transceiver device (110; 120) is arranged to perform the dispatching on a further first PPDU corresponding to the first BA window and prevent performing the dispatching on a further second PPDU corresponding to the second BA window; and wherein the wireless transceiver device (110; 120) is arranged to adaptively adjust a first number of MPDUs corresponding to the first BA window in the further first PPDU and a second number of MPDUs corresponding to the second BA window in the further second PPDU, wherein the first number is less than the second number. utilizing the wireless transceiver device (110; 120) to communicate with another device within the wireless communications system to set up multiple links respectively corresponding to multiple predetermined radio frequency bands, to allow the wireless transceiver device (110; 120) and the other device to perform data transmission through the multiple links; and performing a dispatching management procedure to selectively perform dispatching regarding a first link among the multiple links, for transmitting a first physical layer, in the following also referred to as PHY, protocol data unit, in the following also referred to as PPDU, corresponding to a block acknowledgment, in the following also referred to as BA, window through the first link; characterized in that the dispatching regarding the first link comprises temporarily reducing a number of medium access control, in the following also referred to as MAC, protocol data units, in the following also referred to as MPDUs, corresponding to the BA window in the first PPDU; wherein the BA window represents any BA window among multiple BA windows, and the multiple BA windows comprises a first BA window and a second BA window; and the wireless transceiver device (110; 120) is arranged to perform the dispatching on a further first PPDU corresponding to the first BA window and prevent performing the dispatching on a further second PPDU corresponding to the second BA window; and and the multiple BA windows comprises a first BA window and a second BA window; and the wireless transceiver device (110; 120) is arranged to perform the dispatching on a further first PPDU corresponding to the first BA window and prevent performing the dispatching on a further second PPDU corresponding to the second BA window; and wherein the wireless transceiver device (110; 120) is arranged to adaptively adjust a first number of MPDUs corresponding to the first BA window in the further first PPDU and a second number of MPDUs corresponding to the second BA window in the further second PPDU, wherein the first number is less than the second number.