Co-scheduling of wireless devices

A network node for co-scheduling wireless devices in a communications network, the network node comprising:

• a transmitter;
• a receiver;
• and
• processing circuitry, the processing circuitry being configured to cause the network node to:
• obtain a first precoding matrix indicator (PMI) transmitted by a first wireless device, wherein the first PMI corresponds to a first angle-of-arrival;
• obtain a second PMI transmitted by a second wireless device, wherein the second PMI corresponds to a second angle-of-arrival;
• estimate a first angular spread associated with the first wireless device;
• estimate a second angular spread associated with the second wireless device;
• determine, based on the first angle-of-arrival and the estimated first angular spread, a first forbidden angular interval associated with the first wireless device;
• determine, based on the second angle-of-arrival and the estimated second angular spread, a second forbidden angular interval associated with the second wireless device, wherein the second forbidden angular interval is different than the first forbidden angular interval;
• store first angular interval information specifying the determined first forbidden angular interval;
• store second angular interval information specifying the determined second forbidden angular interval, wherein the second angular interval information is different than the first angular interval information;
• use the second forbidden angular interval information, determining whether the first angle-of-arrival is within the second forbidden angular interval;
• use the first forbidden angular interval information, determining whether the second angle-of-arrival is within the first forbidden angular interval;
• and
• accept a hypothesis of co-scheduling the first wireless device and the second wireless device after determining that i) the first angle-of-arrival is not within the second forbidden angular interval and ii) the second angle-of-arrival is not within the first forbidden angular interval.

A network node for co-scheduling wireless devices in a communications network, the network node comprising:

• processing circuitry;
• and
• a non-transitory storage medium storing instructions that, when executed by the processing circuitry, cause the network node to:
• obtain a first precoding matrix indicator (PMI) transmitted by a first wireless device, wherein the first PMI corresponds to a first angle-of-arrival;
• obtain a second PMI transmitted by a second wireless device, wherein the second PMI corresponds to a second angle-of-arrival;
• estimate a first angular spread associated with the first wireless device;
• estimate a second angular spread associated with the second wireless device;
• determine, based on the first angle-of-arrival and the estimated first angular spread, a first forbidden angular interval associated with the first wireless device;
• determine, based on the second angle-of-arrival and the estimated second angular spread, a second forbidden angular interval associated with the second wireless device, wherein the second forbidden angular interval is different than the first forbidden angular interval;
• store first angular interval information specifying the determined first forbidden angular interval;
• store second angular interval information specifying the determined second forbidden angular interval, wherein the second angular interval information is different than the first angular interval information;
• use the second forbidden angular interval information, determining whether the first angle-of-arrival is within the second forbidden angular interval;
• use the first forbidden angular interval information, determining whether the second angle-of-arrival is within the first forbidden angular interval;
• and
• accept a hypothesis of co-scheduling the first wireless device and the second wireless device after determining that i) the first angle-of-arrival is not within the second forbidden angular interval and ii) the second angle-of-arrival is not within the first forbidden angular interval.

A computer program product comprising a non-transitory computer readable medium comprising a computer program for co-scheduling wireless devices in a communications network, the computer program comprising computer code which, when run on processing circuitry of a network node, causes the network node to:

• obtain a first precoding matrix indicator (PMI) transmitted by a first wireless device, wherein the first PMI corresponds to a first angle-of-arrival;
• obtain a second PMI transmitted by a second wireless device, wherein the second PMI corresponds to a second angle-of-arrival;
• estimate a first angular spread associated with the first wireless device;
• estimate a second angular spread associated with the second wireless device;
• determine, based on the first angle-of-arrival and the estimated first angular spread, a first forbidden angular interval associated with the first wireless device;
• determine, based on the second angle-of-arrival and the estimated second angular spread, a second forbidden angular interval associated with the second wireless device, wherein the second forbidden angular interval is different than the first forbidden angular interval;
• store first angular interval information specifying the determined first forbidden angular interval;
• store second angular interval information specifying the determined second forbidden angular interval, wherein the second angular interval information is different than the first angular interval information;
• use the second forbidden angular interval information, determining whether the first angle-of-arrival is within the second forbidden angular interval;
• use the first forbidden angular interval information, determining whether the second angle-of-arrival is within the first forbidden angular interval;
• and
• accept a hypothesis of co-scheduling the first wireless device and the second wireless device after determining that i) the first angle-of-arrival is not within the second forbidden angular interval and ii) the second angle-of-arrival is not within the first forbidden angular interval.