A transmitter adds packet transmission order information to transmitted packets using a forward error device (416) and a masking device (420). The masking device (420) receives ordering masks (610) from a mask store (424). The ordering masks (610) are maintained in a known order, and the ordering masks...http://www.google.com/patents/US7043022?utm_source=gb-gplus-sharePatent US7043022 - Packet order determining method and apparatus
