Multi-link device adopting block acknowledgment and packet allocation method thereof

A packet allocation method for a multi-link device comprising a first link queue, a second link queue, a control circuit, a first transmitter and a second transmitter, the control circuit being coupled to the first link queue and the second link queue, and the control circuit comprising a common queue configured to buffer a plurality of packets, each packet having a sequence number, the first transmitter being coupled to the first link queue, the second transmitter being coupled to the second link queue, and the packet allocation method comprising:

• the control circuit obtaining a minimum sequence number of all packets in the first link queue and all packets in the second link queue;
• the control circuit computing a maximum sequence number according to the minimum sequence number and a block acknowledgement window size;
• the control circuit determining whether to allocate a set of packets from the common queue according to the maximum sequence number;
• if the control circuit determines to allocate the set of packets, the control circuit allocating the set of packets to the first link queue and/or the second link queue;
• the first transmitter transmitting a packet in the first link queue to a first receiving device;
• and
• the second transmitter transmitting a packet in the second link queue to a second receiving device.