Patent ID: 8473732

Claim:
A method for communicating information in a communication network, the method comprising: performing using at least one processor, functions comprising: receiving a medium access control (MAC) protocol data unit from a sequence comprising plurality of MAC protocol data units; determining a sequence number value for said received MAC protocol data unit that indicates a position of said received MAC protocol data unit in said sequence; generating a nonce from said sequence number value, said nonce being unique to said sequence number value; decrypting a service data unit portion of said received MAC protocol data unit based on said nonce; computing an integrity check value based on said decrypted service data unit portion; determining a determined integrity check value based on based on a message integrity check field of said decrypted service data unit portion; comparing said computed integrity check value and said determined integrity check value; generating adjusted state information for MAC protocol data unit reception based on said decrypting; and storing said adjusted state information in a memory.