Method and apparatus for medium access control in-order delivery

摘要

Method and apparatus for MAC in-order delivery are disclosed. The MAC in-order delivery may be activated per-connection and may be negotiated at connection setup. The MAC in-order delivery may be activated per data flow. The MAC in-order delivery either for non-ARQ connections or ARQ connections may be performed by using HARQ packet ordering information. Alternatively, the MAC in-order delivery may be performed using a sequence number (SN) field at the MAC PDU level or using an SN field at the MAC SDU level. For a connection that has MAC in-order delivery disabled, the MAC PDU may not include an SN field, and an SN field may be included in a MAC extended header or a MAC sub-header when needed. Data packets may be in order before transmission. For a connection that has MAC in-order delivery enabled, data packets can be reordered after reception based on the original data packet ordering.

主权项

1. A method for medium access control (MAC) in-order delivery, the method comprising:
receiving a plurality of MAC protocol data units (PDUs), wherein each MAC PDU includes a plurality of data packets, each of the plurality of data packets corresponding to one of a plurality of data flows; and delivering the plurality of data packets included in the plurality of MAC PDUs to an upper layer by a MAC entity, wherein each of the plurality of data packets are delivered to the upper layer in sequence order on a condition that MAC in-order delivery is activated for a corresponding one of the plurality of data flows, and wherein the MAC in-order delivery is activated independently for each of the plurality of data flows.