Patent ID: 9544888
Date: 2017-01-10
CPC Classifications: H03M,H04L,H04W

Claim:
1. A method, performed by an eTFI-aware wireless device, for managing a modified control block, wherein the modified control block carries control information for the eTFI-aware wireless device, wherein the eTFI-aware wireless device is served by a radio network node, wherein a Temporary Flow Identifier, TFI, and an extended Temporary Flow Identifier, eTFI, are assigned to the eTFI-aware wireless device by the radio network node, wherein the method comprises: receiving the modified control block from the radio network node, wherein the modified control block comprises a control block that the radio network node has FIRE-encoded and introduced one or more errors to prevent legacy wireless devices from successfully decoding the modified control block, wherein the radio network node introduces the one or more errors by performing a first bit-wise modulo two addition between the FIRE-encoded control block and a combination of the eTFI and a pre-determined bit pattern; performing, by the eTFI-aware wireless device, a second bit-wise modulo two addition between the modified control block and the combination of the eTFI and the pre-determined bit pattern to obtain the FIRE-encoded control block and correct the one or more errors introduced by the radio network node; and decoding, by the eTFI-aware wireless device, the corrected FIRE-encoded control block using FIRE-decoding to obtain the control information, wherein the eTFI-aware wireless device is an intended recipient of the control information when a TFI field of the control information matches the TFI assigned to the eTFI-aware wireless device.