Packet retransmission for mimo systems using multipath transmission

A repeater node (30, 40) for forwarding data packets, received from a transmitter node (10), to a receiver node (20) that is the end destination of the packet, in a network (5), comprising:

• a receive module (61) for receiving data packets originating from the transmitter;
• a transmit module (62) for forwarding the data packet to another node in the network;
• a pending packet buffer for storing forwarded data packets;
• and
• retransmission means for retransmitting over the network previously forwarded data packets for which NACK signals are received.

A network of communicating nodes including a transmitter (10), a receiver (20) and at least one repeater (30, 40) for forwarding data packets, received from a transmitter node (10), to the receiver node (20) that is the end destination of the packet, comprising:

• a receive module (61) in the repeater node for receiving data packets originating from the transmitter;
• a transmit module (62) in the repeater node for forwarding the data packet to another node in the network;
• a pending packet buffer (63) in the repeater node for storing forwarded data packets;
• and
• retransmission means in the repeater node (30, 40) for retransmitting, over the network (5), previously forwarded data packets for which NACK signals are received.