Patent ID: 8644338

Claim:
A method, comprising: at a first communication layer: receiving a first packet data unit (PDU), the first PDU including a first partial PDU of a second communication layer, the first partial PDU comprising a first complete service data unit (SDU) and a first SDU portion, the first communication layer being different from the second communication layer; extracting the first partial PDU from the first PDU; providing the first partial PDU to the second communication layer; receiving a second PDU, the second PDU including a second partial PDU of the second communication layer, the second partial PDU comprising a second SDU portion; extracting the second partial PDU from the second PDU; and providing the second partial PDU to the second communication layer; and at the second communication layer: assembling a second complete SDU by combining at least the first SDU portion and the second SDU portion; and providing the first complete SDU to an upper communication layer prior to completing the assembling of the second complete SDU.