Coordinated link adaptation and packet scheduling in dynamic spectrum sharing

A method comprising:

• defining a spatial beam codebook of size NB on the basis of radiation patterns of an antenna array of a base station of a radio access network, which utilizes inter-radio-access technology, wherein each beam corresponds to a radiation pattern whose main lobe is uniquely directed to an angular direction with respect to the antenna array;
• assigning a spatial beam index from the spatial beam codebook for a candidate user equipment of the radio access technology;
• characterized in that the method further comprises:
• assigning a set of subcarriers for the candidate user equipment of the radio access technology for each spatial beam index;
• and
• using the assigned set of subcarriers and spatial beam indices of the other radio-access technology for one or more of resource pool partitioning, link-adaptation, and packet scheduling for the candidate user equipment.

An apparatus comprising at least one processor;

• and at least one non-transitory memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to perform at least the following:
• define a spatial beam codebook of size NB on the basis of radiation patterns of an antenna array of a base station of a radio access network, which utilizes inter-radio-access technology, wherein each beam corresponds to a radiation pattern whose main lobe is uniquely directed to an angular direction with respect to the antenna array;
• assign a spatial beam index from the spatial beam codebook for a candidate user equipment of the radio access technology;
• characterized in that the at least one memory includes computer program code the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to further perform:
• assign a set of subcarriers for candidate user equipment of the radio access technology for each spatial beam index;
• and
• use the assigned sets of subcarriers and spatial beam indices of the other radio-access-technology for one or more of resource pool partitioning, link-adaptation, and packet scheduling for the candidate user equipment.

An apparatus comprising:

• circuitry configured to obtain information about at least one spatial beam assigned with a base station for a user equipment from a spatial beam codebook of size NB on the basis of radiation patterns of an antenna array of a base station of a radio access network, which utilizes inter-radio-access technology, wherein each beam corresponds to a radiation pattern whose main lobe is uniquely directed to an angular direction with respect to the antenna array;
• circuitry configured to calculate traffic metrics regarding communication between the base station and the user equipment;
• circuitry configured to send the calculated traffic metrics to a resource manager;
• characterized in that the apparatus further comprises:
• circuitry configured to receive from the resource manager a resource pool and an inter-RAT interference map;
• circuitry configured to use the resource pool and the inter-RAT interference map for adjusting link-adaptation and packet scheduling for the user equipment.

A method comprising:

• obtaining information about at least one spatial beam assigned with a base station for a user equipment from a spatial beam codebook of size NB on the basis of radiation patterns of an antenna array of a base station of a radio access network, which utilizes inter-radio-access technology, wherein each beam corresponds to a radiation pattern whose main lobe is uniquely directed to an angular direction with respect to the antenna array;
• calculating traffic metrics regarding communication between the base station and the user equipment;
• sending the calculated traffic metrics to a resource manager;
• receiving from the resource manager a resource pool and an inter-RAT interference map;
• using the resource pool and the inter-RAT interference map for adjusting link-adaptation and packet scheduling for the user equipment.

A computer program, stored on a non-transitory computer readable medium, comprising computer readable program code adapted to perform at least the following:

• defining a spatial beam codebook of size NB on the basis of radiation patterns of an antenna array of a base station of a radio access network, which utilizes inter-radio-access technology, wherein each beam corresponds to a radiation pattern whose main lobe is uniquely directed to an angular direction with respect to the antenna array;
• assigning a spatial beam index from the spatial beam codebook fora candidate user equipment of the radio access technology;
• characterized in that the computer program comprising computer readable program code means adapted to further perform:
• assigning a set of subcarriers for the candidate user equipment of the radio access technology for each spatial beam index;
• and
• using the assigned set of subcarriers and spatial beam indices of the other radio-access technology for one or more of resource pool partitioning, link-adaptation, and packet scheduling for the candidate user equipment.