Network node, wireless device and method for use in a random access procedure therebetween in a cell of the network node

A wireless device for performing a Random Access, RA, procedure with a network node in a cell of the network node, the wireless device comprising:

• a processor;
• and
• a memory, the processor and the memory configured to:
• transmit, to the network node, an RA message comprising an RA preamble;
• receive, from the network node, an RA Response, RAR, comprising, a Temporary Cell Radio Network Temporary Identifier, TC-RNTI, and an RA preamble identifier identifying the RA preamble;
• transmit, to the network node, a connection request message comprising a System Architecture Evolution, SAE Temporary Mobile Subscriber Identity, S-TMSI;
• receive, from the network node, an RA4 message comprising a connection setup message and the S-TMSI provided in the connection request message, the message being addressed to one of (a) a C-RNTI previously assigned to the wireless device and (b) the TC-RNTI;
• and
• transmit, to the network node, a Connection Setup Complete message.

A network node for performing a Random Access, RA, procedure with at least one wireless device in a cell of the network node, the network node comprising:

• a processor;
• and
• a memory, the processor and the memory configured to:
• receive, from at least two wireless devices, an RA message comprising an RA preamble;
• transmit an RA Response, RAR, to the at least two wireless devices, the RAR comprising a Temporary Cell Radio Network Temporary Identifier, TC-RNTI and an RA preamble identifier identifying the received RA preamble;
• for at least one of the received connection request messages, transmit:
• a respective RA4 message to a respective wireless device comprising the respective temporary identity for the wireless device that sent the connection request message;
• an indication that a plurality of RA4 messages will be transmitted;
• and
• at least one of (I) a C-RNTI for the wireless device whose temporary identity is comprised in the RA4 message, and (II) a new TC-RNTI;
• and
• a TC-RNTI that previously was transmitted being promoted to be a C-RNTI for the wireless device whose temporary identity is comprised in the RA4 message.

A wireless device for performing a Random Access, RA, procedure with a network node in a cell of the network node, the wireless device comprising:

• a processor;
• and
• a memory, the processor and the memory configured to:
• transmit, to the network node, an RA message comprising an RA preamble;
• receive, from the network node, an RA Response, RAR, comprising a Temporary Cell Radio Network Temporary Identifier, TC-RNTI, and an RA preamble identifier identifying the RA preamble;
• transmit, to the network node, a connection request message comprising a temporary identity;
• receive, from the network node;
• an RA4 message comprising the temporary identity;
• an indication that a plurality of connection setup messages will be transmitted;
• and
• one of (I) a C-RNTI for the wireless device, and (II) a new TC-RNTI, the TC-RNTI that previously was received being promoted to be a C-RNTI for the wireless device;
• and
• transmit, to the network node, a Connection Setup Complete message.