Transmission of network slicing constraints in 5g wireless networks
AssigneeNokia Technologies Oy
InventorsMatthew Andrews, Sem Borst, Siegfried Klein, Silvio Mandelli, Tsunehiko Chiba
Life of this patent
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Abstract
A 5G network communicates per-slice constraints for QoS parameter values from a centralized unit (CU) to a MAC scheduler of a distributed unit (DU). The CU communicates these per-slice constraints, rather than or in addition to per-DRB constraints, to the MAC scheduler over the CU/DU interface. In some implementations, the CU/DU interface is an F1 air interface as defined in specification 38.473 in the 3GPP standard. In some implementations, the DU provides per-slice performance feedback over the CU/DU interface. Based on such feedback, the CU may adjust the per-slice QoS constraints.
Claims20
A method, comprising:
- receiving, by processing circuitry of a centralized unit (CU), per-slice constraint data representing a constraint on a quality of service (QoS) parameter for a network slice of a set of network slices of a communications network;
- and
- sending, by the processing circuitry, the per-slice constraint data to a scheduling entity of a distributed unit (DU), the DU being associated with a cell of the communications network, the scheduling entity being configured to generate a schedule of a transmission of communications data for the cell, the schedule being based on the constraint on the QoS parameter for the network slice.
A method, comprising:
- receiving, by processing circuitry of a distributed unit (DU), per-slice constraint data representing a constraint on a quality of service (QoS) parameter for a network slice of a set of network slices of a communications network;
- and
- generating, by the processing circuitry of the DU, a schedule of a transmission of communications data for the cell, the schedule being based on the constraint on the QoS parameter for the network slice.
An apparatus, comprising:
- a centralized unit (CU),
- a distributed unit (DU) including a scheduling entity, the DU being associated with a cell of a communications network, and
- the CU being configured to send per-slice constraint data to the scheduling entity of the DU, the per-slice constraint data representing a constraint on a quality of service (QoS) parameter for a network slice of a set of network slices of the communications network.
A computer program product comprising a non-transitory storage medium, the computer program product including code that, when executed by processing circuitry of a centralized unit(CU), causes the processing circuitry to:
- receive per-slice constraint data representing a constraint on a quality of service (QoS) parameter for a network slice of a set of network slices of a communications network;
- and
- send the per-slice constraint data to a scheduling entity of a distributed unit (DU), the DU being associated with a cell of the communications network, the scheduling entity being configured to generate a schedule of a transmission of communications data for the cell, the schedule being based on the constraint on the QoS parameter for the network slice.
Dependencies are inferred from the claim text.