Methods of sending UE screaming signal in private networks with local licensed spectrum

1 . A wireless device that is configured to communicate with a serving network node, the wireless device comprising:

processing circuitry configured to cause transmission of random access (RA) signaling to a first network node, the RA signaling configured to indicate that the first network node is causing interference at the wireless device, wherein the processing circuitry is further configured to receive, from the serving network node, a message triggering the transmission of the RA signaling to the first network node, wherein the message includes an identifier associated with the first network node, wherein the RA signaling includes at least one of a cell identifier of the first network node and resource coordination information for interference mitigation.

2 . The wireless device of claim 1 , wherein the processing circuitry is further configured to:

autonomously monitor a signal reception from the first network node; and

determine whether the signal reception meets an aggressor criterion, the transmission of RA signaling to the first network node being based on the signal reception meeting the aggressor criterion.

3 . The wireless device of claim 2 , wherein the aggressor criterion includes an interference level, the aggressor criterion being met if the interference level is met.

4 . The wireless device of claim 3 , wherein the interference level is met when the following one or more conditions are met:

power of the interference signal received at the wireless device is above interference threshold;

received signal quality at the wireless device is below signal quality threshold; and

error rate of received signal at the wireless device is above error rate threshold.

5 . The wireless device of claim 2 , wherein the monitoring includes monitoring of a plurality of signal receptions associated with of a plurality of network nodes including the first network node; and

the processing circuitry is further configured to:

determine that each of the plurality of signal receptions meets the aggressor criterion; and

cause transmission of RA signaling to each of the plurality of network nodes, the RA signaling configured to:

indicate that the plurality of network nodes are causing interference; and

be used by each of the plurality of network nodes to determine whether to perform an action to reduce the interference.

6 . The wireless device of claim 1 , wherein the processing circuitry is further configured to:

receive, from the serving network node, a message that triggers monitoring of signal reception associated with the first network node;

monitor the signal reception from the first network node based on the message; and

determine whether the signal reception meets an aggressor criterion based on the monitoring of the signal reception, the transmission of RA signaling to the first network node being based on the signal reception meeting the aggressor criterion.

7 . The wireless device of claim 1 , wherein the RA signaling corresponds to one of physical random access channel (PRACH) signaling and uplink data channel signaling in a RA process.

8 . The wireless device of claim 7 , wherein the RA process is one of a 2-step RA process and 4-step RA process.

9 . The wireless device of claim 8 , wherein a last step of one of the 2-step RA process and 4-step RA process is skipped.

10 . The wireless device of claim 7 , wherein an acknowledgement step for acknowledging the one of PRACH signaling and PUSCH signaling in the RA process is skipped.

11 . The wireless device of claim 1 , wherein

the resource coordination information for interference mitigation includes one of:

information of a set of radio resources over which interference is received from the first network node;

information of a set of radio resources over which the first network node is recommended to reduce interference toward the wireless device; and

information of a time period over which the wireless device is expected to be served, by the serving network node, on a set of radio resources.

12 . The wireless device of claim 1 , wherein the wireless device is not in a radio resource control (RRC) connected state with the first network node.

13 . The wireless device of claim 1 , wherein the RA signaling is configured to be used by the first network node to determine whether to perform an action to reduce the interference.

14 . The wireless device of claim 1 , wherein the transmission is to the first network node is a direct transmission to the first network node.

15 . A first network node, the first network node comprising:

processing circuitry configured to:

receive transmission of random access (RA) signaling from a wireless device, the RA signaling configured to indicate that the first network node is causing interference at the wireless device; and

cause an action to reduce the interference based on the indication that the first network node is causing interference, wherein the RA signaling from the wireless device is received in response to a message sent from a serving network node triggering the transmission of the RA signaling to the first network node, wherein the message includes an identifier associated with the first network node, wherein the RA signaling includes at least one of a cell identifier of the first network node and resource coordination information for interference mitigation.

16 . The first network node of claim 15 , wherein the processing circuitry is further configured to identify a cause of the interference based at least in part on the RA signaling, the action being based on the identified cause of the interference.

17 . The first network node of claim 15 , wherein the action includes one of:

adapting transmission on a plurality of resources;

adapting a frequency of allocation of a plurality of resources in one of a time domain and frequency domain; and

adapting transmission on a plurality of resources over a time period.

18 . The first network node of claim 15 , wherein the RA signaling indicates that a plurality of network nodes are causing interference at the wireless device, the plurality of network nodes including the first network node.

19 . The first network node of claim 15 , wherein the RA signaling corresponds to one of physical random access channel (PRACH) and physical uplink data channel signaling in a RA process.