Mapping Information for Integrated Access and Backhaul
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsOumer Teyeb, Filip Barac
Life of this patent
Estimating the term…
Abstract
In an example, a method performed by central unit control plane, CU-CP, of a base station for providing Integrated Access and Backhaul, IAB, bearer mapping information is disclosed. The base station is configured as a donor base station for one or more IAB nodes. The method comprises transmitting, to a distributed unit DU of the base station which is configured as a donor DU for one more IAB node, mapping information to map one or more field values to one or more backhaul radio link control BH RLC channels between the DU and a first IAB node on a downlink path.
Claims26
1-33. (canceled)
A method performed by a distributed unit (DU) of a base station for providing Integrated Access and Backhaul (IAB) mapping information, wherein the base station is configured as a donor base station for one or more IAB nodes, the method comprising:
- obtaining mapping information to map one or more field values to one or more backhaul radio link control BH RLC channels between the DU and a first IAB node in a downlink path;
- and
- mapping a downlink packet received from a central unit control plane CU-CP of the base station to a first BH RLC channel based on a first field value in the downlink packet and the mapping information;
- or
- inserting a second field value into an uplink packet to be transmitted to the CU-CP base station based on a second BH RLC on which a corresponding uplink packet was received and the mapping information.
A method performed by a central unit control plane (CU-CP) of a base station for providing Integrated Access and Backhaul (IAB) mapping information, wherein the base station is configured as a donor base station for one or more IAB nodes, the method comprising:
- transmitting, to the IAB node, first mapping information to map uplink control plane data to one or more field values;
- and
- transmitting, to an IAB node, a second mapping information to map one or more field values to one or more backhaul radio link control BH RLC channels between the IAB node and a parent node of the IAB node.
A method performed by an Integrated Access and Backhaul node for providing Integrated Access and Backhaul (IAB) mapping information, wherein the IAB node is being served by a base station configured as a donor base station for one or more IAB nodes, the method comprising:
- obtaining first mapping information to map uplink control plane data to one or more field values;
- obtaining second mapping information to map the one or more field values to one or more backhaul radio link control BH RLC channels between the IAB node and a parent node of the IAB node;
- inserting a first field value into an uplink control plane packet based on a type of the control plane packet or the user equipment the packet is associated with and the first mapping information;
- and
- selecting a first BH RLC channel to which to forward the uplink packet, based on the first field value and the second mapping information.
An apparatus in a distributed unit (DU) of a base station for providing Integrated Access and Backhaul (IAB) mapping information, wherein the base station is configured as a donor base station for one or more IAB nodes, the apparatus comprising a processor and a memory, the memory containing instructions executable by the processor such that the apparatus is operable to:
- obtain mapping information to map one or more field values to one or more backhaul radio link control BH RLC channels between the DU and a first IAB node in a downlink path;
- and
- map a downlink packet received from a central unit control plane CU-CP of the base station to a first BH RLC channel based on a first field value in the downlink packet and the mapping information;
- or
- insert a second field value into an uplink packet to be transmitted to the CU-CP base station based on a second BH RLC on which a corresponding uplink packet was received and the mapping information.
Dependencies are inferred from the claim text.