Abstract: An example apparatus is provided that receives a plurality of protocol data units (PDUs) formatted according to a standard that prescribes segmenting service data units (SDUs) into sequential PDUs. Each SDU is segmented into PDU(s), and each PDU includes data field element(s). The apparatus detects a current received PDU including data field element(s) that do not belong to a SDU, and handles the detected PDU. This handling includes one or more of (a) accepting the detected PDU but discarding the data field element(s) of the respective PDU; (b) discarding the detected PDU including the data field element(s) of the respective PDU; (c) processing the detected PDU and forming a SDU from the data field element(s) of the respective PDU; or (d) handling the error as a radio link failure. The apparatus then operates according to the standard with respect to the received PDUs after handling the detected PDU.

Abstract: An apparatus, method and system for scheduling uplink resources in communication systems. In one embodiment, the apparatus (e.g., user equipment) 300 includes a buffer 340 containing data to be transmitted to an entity (e.g., a base station) 400 of the communication system. The apparatus 300 also includes a processing unit 310 configured to provide a request for the entity 400 for an uplink resource allocation for transmission of the data in the buffer 340 when the data is a first type. The processing unit 310 is also configured to provide a request following a delay period for the entity 400 for an uplink resource allocation for transmission of the data in the buffer 340 when the data is a second type.

Abstract: An example apparatus is provided that receives a plurality of protocol data units (PDUs) formatted according to a standard that prescribes segmenting service data units (SDUs) into sequential PDUs. Each SDU is segmented into PDU(s), and each PDU includes data field element(s). The apparatus detects a current received PDU including data field element(s) that do not belong to a SDU, and handles the detected PDU. This handling includes one or more of (a) accepting the detected PDU but discarding the data field element(s) of the respective PDU; (b) discarding the detected PDU including the data field element(s) of the respective PDU; (c) processing the detected PDU and forming a SDU from the data field element(s) of the respective PDU; or (d) handling the error as a radio link failure. The apparatus then operates according to the standard with respect to the received PDUs after handling the detected PDU.