Systems and methods providing improved success rate for rrc connection reestablishments

A method of operation of a radio access node in a cellular communications system to enable connection reestablishment for a wireless device to a target cell controlled by the radio access node, comprising:

• receiving a connection reestablishment request from the wireless device;
• identifying a candidate source cell for the wireless device having a cell identifier that matches a cell identifier of a source cell of the wireless device and a carrier frequency that matches a carrier frequency of the source cell of the wireless device based on the connection reestablishment request;
• sending a context fetch request for a context for a wireless device to a candidate source radio access node controlling the candidate source cell identified for the wireless device;
• and
• receiving the context for the wireless device from the candidate source radio access node in response to the context fetch request.

A wireless device in a cellular communications system enabling connection reestablishment for the wireless device to a target cell controlled by a target radio access node, comprising:

• at least one transmitter and at least one receiver configured to enable wireless communication between the wireless device and the target radio access node;
• at least one processor;
• and
• memory containing instructions executable by the at least one processor whereby the wireless device is operative to:
• transmit a connection reestablishment request to the target radio access node via the at least one transmitter, the connection reestablishment request comprising an indication of a carrier frequency of a source cell of the wireless device;
• and
• in response, receive a connection reestablishment message from the target radio access node via the at least one receiver.

A method of operation of a wireless device in a cellular communications system to enable connection reestablishment for the wireless device to a target cell controlled by a target radio access node, comprising:

• transmitting a connection reestablishment request to the target radio access node, the connection reestablishment request comprising an indication of a carrier frequency of a source cell of the wireless device;
• and
• in response, receiving a connection reestablishment message from the target radio access node,
• wherein the indication of the carrier frequency of the source cell of the wireless device is an absolute priority of the carrier frequency of the source cell of the wireless device, where different carrier frequencies are assigned different absolute priorities.