Methods and nodes for decoding of contention based uplink transmissions

A wireless device arranged to enable a network node of a radio network to decode contention based uplink transmissions of data in a cell served by the network node, the wireless device comprising:

• a communication circuit configured for wirelessly communicating with the network node;
• and
• a processing circuit operatively associated with the communication circuit and configured to:
• initiate automatic registration of the wireless device with the network node, for contention based uplink transmissions of data on a radio resource reserved for contention based uplink transmissions of data;
• receive an acknowledgement from the network node indicating that the wireless device is registered for contention based uplink transmissions of data in the cell, wherein the acknowledgement comprises an identifier;
• and
• transmit data, using the identifier, on the radio resource, thereby enabling the network node to perform blind decoding of the data by considering wireless devices being registered for contention based uplink transmissions of data on the radio resource in the cell.

A method, performed by a network node of a radio network, for decoding of contention based uplink transmissions of data in a cell served by the network node, the method comprising:

• registering a wireless device for contention based uplink transmissions of data on a radio resource reserved for contention based uplink transmissions of data;
• sending an acknowledgement to the wireless device indicating that the wireless device is registered for contention based uplink transmissions of data on the radio resource in the cell, wherein the acknowledgement comprises an identifier;
• and
• performing blind decoding of contention based uplink transmissions on the radio resource by considering the identifier and identifiers corresponding to any other wireless devices registered for contention based uplink transmissions of data on the radio resource in the cell.

A network node of a radio network, the network node being arranged for decoding of contention based uplink transmissions of data in a cell served by the network node, the network node comprising:

• a communication circuit configured for communicating with a wireless device;
• and
• a processing circuit operatively associated with the communication circuit and configured to:
• register the wireless device for contention based uplink transmissions of data on a radio resource reserved for contention based uplink transmissions of data;
• and
• send an acknowledgement to the wireless device indicating that the wireless device is registered for contention based uplink transmissions of data on the radio resource in the cell, wherein the acknowledgement comprises an identifier;
• and
• perform blind decoding of contention based uplink transmissions on the radio resource by considering the identifier and identifiers of any other wireless devices registered for contention based uplink transmissions of data on the radio resource in the cell.