First device, second device and methods therein for the first device sending a modified encoded radio block to the second device

(canceled)

(canceled)

A method performed by a second device for determining whether the second device is the intended recipient of a modified encoded radio block, sent by a first device, the first device and the second device operating in a wireless communications network, the method comprising:

• receiving a modified encoded radio block from the first device,
• performing, a bit-wise modulo-2-addition between the modified encoded radio block and a pre-determined bit pattern, to reverse a modulo-2-addition performed by the first device on an encoded radio block corresponding to the modified encoded radio block, wherein the bit-wise modulo-2-addition is performed in accordance with an extended Temporary Flow Identifier, eTFI, assigned to the second device so that the bit-wise modulo-2-addition is performed between a selected set of bit positions of the modified encoded radio block and the pre-determined pattern, wherein the selected set of bit positions is unique to a value of the eTFI assigned to the second device, and
• determining whether or not the second device is the intended recipient of the modified encoded radio block, wherein the determining comprises decoding the encoded radio block after performing the bit-wise modulo-2-addition.

(canceled)

(canceled)

A first device configured to send a modified encoded radio block to a second device, the first device and the second device being configured to operate in a wireless communications network, the first device being further configured to:

• select a set of bit positions of an encoded radio block, wherein the encoded radio block has the second device as intended recipient, wherein the set of bit positions is unique to a value of an extended Temporary Flow Identifier, eTFI, assigned to the second device, or wherein the set of bit positions is unique to a case in which no eTFI has been assigned to the second device,
• perform a modulo-2-addition of the selected set of bit positions of the encoded radio block with a pre-determined bit pattern, to obtain a modified encoded radio block, and
• send the modified encoded radio block to the second device.

A second device configured to determine whether the second device is the intended recipient of a modified encoded radio block, configured to be sent by a first device, the first device and the second device being configured to operate in a wireless communications network, the second device being further configured to:

• receive a modified encoded radio block from the first device,
• perform a bit-wise modulo-2-addition between the modified encoded radio block and a pre-determined bit pattern, to reverse a modulo-2-addition configured to be performed by the first device on an encoded radio block corresponding to the modified encoded radio block, wherein the bit-wise modulo-2-addition is configured to be performed in accordance with an extended Temporary Flow Identifier, eTFI, assigned to the second device so that the bit-wise modulo-2-addition is performed between a selected set of bit positions of the modified encoded radio block and the pre-determined pattern, wherein the selected set of bit positions is unique to a value of the eTFI assigned to the second device, and
• determine whether or not the second device is the intended recipient of the modified encoded radio block, wherein to determine comprises decoding the encoded radio block after performing the bit-wise modulo-2-addition.