Patent ID: 8072911
Filing Date: 2011-12-06
Classification: H04L

Abstract:
1. A method in a first communication device for receiving control information and data over a radio channel from a second communication device the method comprising the steps of: receiving part of a subframe over the radio channel, detecting that the subframe is a subframe having a downlink assignment intended for the first communication device, and determining whether one downlink assignment, for data being sent from the second communication device before the subframe, has been missed by analysing an indicator associated with the subframe; the indicator, comprising a polynomial used to generate a Cyclic Redundancy Check (CRC) for the assigned subframe on one of a Physical Downlink Channel (PDCH), a Physical Downlink shared Channel, (PDSCH) and a Physical Downlink Control Channel (PDCCH), providing information about previous downlink subframes with downlink assignments intended for the first communication device, the first communication device retrieving the polynomial during the decoding of the data or control information.