Network node triggered mobility measurement reporting
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsJan Christoffersson, Min Wang, Mårten Ericson, Tommy Arngren
Life of this patent
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Abstract
There is provided mechanisms for triggering mobility measurements. A method is performed by a network node. The method comprises obtaining information about backhaul link quality of a wireless backhaul link of the network node. The method comprises, as a result thereof, sending, to at least a subset of all UEs served by the network node in a cell, an indication for the subset of UEs to perform mobility measurements. The method comprises receiving mobility measurement reports from the subset of UEs. The method comprises determining a handover action for the subset of UEs based at least on the backhaul link quality and on the mobility measurement reports.
Claims15
A method for triggering mobility measurements, the method being performed by a network node, the method comprising:
- obtaining information about backhaul link quality of a wireless backhaul link of the network node;
- and as a result thereof:
- sending, to at least a subset of all user equipment (UEs) served by the network node in a cell, an indication for the subset of UEs to perform mobility measurements;
- receiving mobility measurement reports from the subset of UEs;
- determining a handover action for the subset of UEs based at least on the backhaul link quality and on the mobility measurement reports, wherein the network node is an integrated access and backhaul (IAB) node;
- and
- obtaining backhaul link quality information of another wireless backhaul link of another network node in the cell or in another cell than the cell of the network node, wherein when the backhaul link quality information of said another wireless backhaul link indicates that said another wireless backhaul link suffers from deterioration, the indication sent to the subset of UEs instructs the subset of UEs to refrain from performing mobility measurements on the cell of said another wireless backhaul link.
A method for performing network node triggered mobility measurement reporting, the method being performed by a User Equipment (UE), the method comprising:
- receiving, from a network node serving the UE in a cell, an indication to perform network node triggered mobility measurements;
- and in response thereto:
- performing mobility measurements on reference signals received from at least one other network node;
- and
- sending a mobility report of the mobility measurements to the network node serving the UE;
- and
- receiving, from a network node of another cell, information of deteriorating backhaul link quality of a wireless backhaul link in said another cell, wherein the UE refrains from performing mobility measurements on reference signals received from any network nodes of the another cell.
A network node for triggering mobility measurements, the network node comprising processing circuitry, the processing circuitry being configured to cause the network node to:
- obtain information about backhaul link quality of a wireless backhaul link of the network node;
- and as a result thereof:
- send, to at least a subset of all user equipment (UEs) served by the network node in a cell, an indication for the subset of UEs to perform mobility measurements;
- receive mobility measurement reports from the subset of UEs;
- determine a handover action for the subset of UEs based at least on the backhaul link quality and on the mobility measurement reports;
- and
- obtain backhaul link quality information of another wireless backhaul link of another network node in the cell or in another cell than the cell of the network node, wherein when the backhaul link quality information of said another wireless backhaul link indicates that said another wireless backhaul link suffers from deterioration, the indication sent to the subset of UEs instructs the subset of UEs to refrain from performing mobility measurements on the cell of said another wireless backhaul link.
A User Equipment (UE) for performing network node triggered mobility measurement reporting, the UE comprising processing circuitry, the processing circuitry being configured to cause the UE to:
- receive, from a network node serving the UE in a cell, an indication to perform network node triggered mobility measurements;
- and in response thereto:
- perform mobility measurements on reference signals received from at least one other network node;
- and
- send a mobility report of the mobility measurements to the network node serving the UE;
- and
- receive, from a network node of another cell, information of deteriorating backhaul link quality of a wireless backhaul link in said another cell, wherein the UE refrains from performing mobility measurements on reference signals received from any network nodes of the another cell.
Dependencies are inferred from the claim text.