Scheduling communication resources
View Patent ↗In an example embodiment, one or more scheduler of base stations may be configured to schedule physical resource blocks in considering the respective wireless communication channel quality and neighboring co-channel interferences.
1. A method performed under control of a base station, the method comprising:
determining, by the base station, a gain contributed by wireless communication channel quality indicated by a channel quality indicator (CQI) associated with each of a plurality of uplink physical resource blocks in a cell;
determining, by the base station, a gain due to co-channel interferences indicated by received interference power (RIP) associated with each of the plurality of uplink physical resource blocks in the cell,
wherein the gain due to the co-channel interferences is determined by calculating a difference between a respective RIP value and a minimal RIP value among RIP values of the plurality of uplink physical resource blocks;
determining, by the base station, an overall gain by calculating a ratio of a transmitted signal to a received signal for each of the plurality of uplink physical resource blocks in the cell based on the gain contributed by the wireless communication channel quality and the gain due to the co-channel interferences;
prioritizing, by the base station, the plurality of uplink physical resource blocks based, at least in part, on the overall gain for each of the plurality of uplink physical resource blocks; and
allocating, by the base station, the uplink physical resource blocks for uplink communications in the cell based on a descending order of relative priorities.
2. The method as recited in claim 1 , wherein the determining the gain contributed by the wireless communication channel quality comprises:
determining, a respective level of channel quality associated with each of the plurality of uplink physical resource blocks in the cell, and
wherein the determining the gain due to the co-channel interferences comprises:
determining, a respective amount of co-channel interference associated with each of the plurality of uplink physical resource blocks in the cell.
3. The method as recited in claim 1 , wherein the overall gain for each of the plurality of uplink physical resource blocks comprises a difference between the respective gain contributed by the wireless communication channel quality indicated by the CQI and the respective gain due to the co-channel interferences indicated by the RIP.
4. The method as recited in claim 1 , wherein the prioritizing comprises prioritizing the plurality of uplink physical resource blocks in proportion with the overall gain for each of the plurality of uplink physical resource blocks.
5. A non-transitory computer-readable medium storing instructions that, when executed, cause a base station to perform operations comprising:
determining, by the base station, a gain contributed by wireless communication channel quality indicated by a channel quality indicator (CQI) associated with each of a plurality of uplink physical resource blocks in a cell;
determining, by the base station, a gain due to co-channel interferences indicated by received interference power (RIP) associated with each of the plurality of uplink physical resource blocks in the cell,
wherein the gain due to the co-channel interferences is determined by calculating a difference between a respective RIP value and a minimal RIP value among RIP values of the plurality of uplink physical resource blocks;
determining, by the base station, an overall gain by calculating a ratio of a transmitted signal to a received signal for each of the plurality of uplink physical resource blocks in the cell based on the gain contributed by the wireless communication channel quality and the gain due to the co-channel interferences; and
prioritizing, by the base station, the plurality of uplink physical resource blocks based, at least in part, on the overall gain of each of the plurality of uplink physical resource blocks.
6. The non-transitory computer-readable medium as recited in claim 5 , wherein the overall gain for each of the plurality of uplink physical resource blocks comprises a difference between the respective gain contributed by the wireless communication channel quality indicated by the CQI and the respective gain due to the co-channel interferences indicated by the RIP for each of the plurality of uplink physical resource blocks.
7. The non-transitory computer-readable medium as recited in claim 5 , wherein the prioritizing comprises prioritizing the plurality of uplink physical resource blocks in proportion with the respective overall gain for each of the plurality of uplink physical resource blocks.
8. The non-transitory computer-readable medium as recited in claim 5 , further comprising:
allocating the uplink physical resource blocks for uplink communications in the cell based on a descending order of relative priorities.
9. A method performed under control of a base station, the method comprising:
prioritizing, by the base station, a plurality of uplink physical resource blocks in a cell based, at least in part, on respective overall gains by calculating a ratio of a transmitted signal to a received signal for each of the plurality of uplink physical resource blocks,
wherein the overall gains are calculated based on a gain contributed by wireless communication channel quality indicated by a channel quality indicator (CQI) associated with each of the plurality of uplink physical resource blocks in the cell and a gain due to co-channel interferences indicated by received interference power (RIP) associated with each of the plurality of uplink physical resource blocks in the cell, and
wherein the gain due to the co-channel interferences is determined by calculating a difference between a respective RIP value and a minimal RIP value among RIP values of the plurality of uplink physical resource blocks; and
allocating, by the base station, the uplink physical resource blocks for uplink communications in the cell according to a respective priority of each of the plurality of uplink physical resource blocks.
10. The method as recited in claim 9 , wherein the gain contributed by the wireless communication quality is related to a level of channel quality associated with each of the plurality of uplink physical resource blocks in the cell and the gain due to the co-channel interferences is related to an amount of co-channel interference associated with each of the plurality of uplink physical resource blocks in the cell.
11. The method as recited in claim 9 , wherein the respective overall gain for each of the plurality of uplink physical resource blocks comprises a difference between the gain contributed by the wireless communication channel quality indicated by the CQI and the gain due to the co-channel interferences indicated by the RIP for each of the plurality of uplink physical resource blocks.