Robust deframing of MAC layer packets for mobile multimedia multicast system

A non-transitory computer readable medium readable by computer, tangibly embodying a program of instructions executable by said computer to perform a method for finding errors in the fragment headers of the fragments of service layer packets without depending on the erasure indicators of Medium Access Channel (MAC) layer packets, said method comprising:

• determining if a length of said fragment header is less than 127 and greater than 121;
• determining if said length of said fragment header is equal to 127, and if said fragment header is not a last fragment header in a service layer packet being formed;
• determining if a summation of said length of said fragment header for a value N is greater than 122 subtracted by N, wherein N is the number of fragments collected from a MAC layer packet including said fragment header;
• and
• determining if said fragment header is not the last fragment header in said service layer packet being formed, and if said length of said fragment header is less than a residual number of bytes in said MAC layer packet.

A system for finding errors in the fragment headers of the fragments of service layer packets without depending on the erasure indicators of Medium Access Channel (MAC)layer packets, said system comprising:

• a computer processor for determining:
• if a length of said fragment header is less than 127 and greater than 121;
• if said length of said fragment header is equal to 127, and if said fragment header is not a last fragment header in a service layer packet being formed;
• if a summation of said length of said fragment header for a value N is greater than 122 subtracted by N, wherein N is the number of fragments collected from a MAC layer packet including said fragment header;
• and
• if said fragment header is not the last fragment header in said service layer packet being formed, and if said length of said fragment header is less than a residual number of bytes in said MAC layer packet.