Patent ID: 8982870
Filing Date: 2015-03-17
Classification: H04L,H04W

Abstract:
1. A method for use in a cellular communications system comprising: receiving, at a first transceiver, data units from a second transceiver, wherein the data units are each associated with an identifier and wherein the data units are divided into segments; sending status information from the first transceiver to the second transceiver, wherein sending the status information includes: an acknowledgement field containing information acknowledging properly received data units; an extension indicator of a first type indicating an absence or a presence of a set of fields, the set of fields comprising: another extension indicator of the first type; a negative acknowledgement field containing information indicating a partially received or non-received data unit in the form of an identifier for the partially received or non-received data unit; and an extension indicator of a second type indicating an absence or a presence of information indicating a non-received portion of a partially received data unit.