Synchronization signaling block compatible interference coordination patterns to reduce interference in wireless networks
According to an example embodiment, a method may include determining, by a first base station associated with a first cell based on a synchronization signal block (SSB) configuration indicating one or more resources on which a synchronization signal block (SSB) may be transmitted by a second cell, one or more interference protected resources on which the first cell will reduce interference towards the second cell; and sending, by the first base station associated with the first cell to a second base station associated with the second cell, information identifying the one or more interference protected resources on which the first cell will reduce interference towards the second cell.
1. A method comprising:
determining, by a first base station associated with a first cell based on a synchronization signal block (SSB) configuration indicating one or more resources on which the SSB may be transmitted by a second cell, one or more interference protected resources on which the first cell will reduce interference towards the second cell, wherein the determining comprises:
determining, by the first base station associated with the first cell, based on the SSB configuration, a first interference protected resource on which the SSB may be transmitted by the second cell and on which the first cell will reduce interference towards the second cell;
determining, by the first base station, a second interference protected resources based on the following SSB information received by the first base station from a second base station with respect to the second cell: information indicating a half frame that the second cell is using or is planning to use for SSB transmission; and information indicating one or more resources on which the SSB may be transmitted that the second cell is using or planning to use for SSB transmission;
selecting, by the first base station associated with the first cell, an interference coordination pattern of a plurality of predetermined interference coordination patterns, wherein the selected predetermined interference coordination pattern indicates a third interference protected resource on which the SSB may be transmitted by the second cell and on which the first cell will reduce interference towards the second cell; and
determining, by the first base station, a fourth interference protected resource based on a predefined set of rules that allow usage or transmission of SSBs by the second cell via the interference protected resources; and
sending, by the first base station associated with the first cell to the second base station associated with the second cell, information identifying the first, second, and third interference protected resources on which the first cell will reduce interference towards the second cell, wherein the sending comprises:
sending an interference coordination pattern that identifies one or more of the first, second, and third interference protected resources on which the SSB may be transmitted by the second cell and one or more non-protected resources on which the SSB may be transmitted by the second cell, wherein the one or more non-protected resources comprise resources on which the first cell may not reduce interference towards the second cell.
2. The method of claim 1 , wherein the sending comprises: sending, by the first base station associated with the first cell to the second base station associated with the second cell, an interference coordination pattern including a plurality of bits identifying the first, second, and third interference protected resources on which the first cell will reduce interference towards the second cell.
3. The method of claim 1 , wherein the SSB configuration indicates a plurality of candidate locations for SSBs, wherein a plurality of the SSBs are transmitted via a same beam using a subset of candidate locations.
4. The method of claim 1 , further comprising: reducing, by the first base station associated with the first cell, interference towards the second cell for the one or more interference protected resources.
5. The method of claim 4 , wherein the reducing interference comprises: omitting or reducing a signal transmission for at least one of a particular time, on a particular frequency, or via a particular beam, that would cause interference towards the second cell, for the one or more interference protected resources.
6. The method of claim 1 , wherein the determining comprises: determining, by the first base station, the fourth interference protected resource based on information received by the first base station from the second base station with respect to the second cell.
7. The method of claim 1 , further comprising: sending, by the first base station to the second base station, information about at least one synchronization signal block that is transmitted by the first cell.
8. A first base station comprising:
at least one processor; and
at least one 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 first base station at least to perform:
determining, by the first base station associated with a first cell based on a synchronization signal block (SSB) configuration indicating one or more resources on which the SSB may be transmitted by a second cell, one or more interference protected resources on which the first cell will reduce interference towards the second cell, wherein the determining comprises:
determining, by the first base station associated with the first cell, based on the SSB configuration a first interference protected resource on which the SSB may be transmitted by the second cell and on which the first cell will reduce interference towards the second cell;
determining, by the first base station, a second interference protected resources based on the following SSB information received by the first base station from a second base station with respect to the second cell: information indicating a half frame that the second cell is using or is planning to use for SSB transmission; and information indicating one or more resources on which the SSB may be transmitted that the second cell is using or planning to use for SSB transmission;
selecting, by the first base station associated with the first cell, an interference coordination pattern, of a plurality of predetermined interference coordination patterns, wherein the selected predetermined interference coordination pattern indicates a third interference protected resource on which the SSB may be transmitted by the second cell and on which the first cell will reduce interference towards the second cell; and
determining, by the first base station, a fourth interference protected resource based on a predefined set of rules that allow usage or transmission of SSBs by the second cell via the interference protected resources; and
sending, by the first base station associated with the first cell to the second base station associated with the second cell, information identifying the first, second, and third interference protected resources on which the first cell will reduce interference towards the second cell, wherein the sending comprises:
sending an interference coordination pattern that identifies one or more of the first, second, and third interference protected resources on which the SSB may be transmitted by the second cell and one or more non-protected resources on which the SSB may be transmitted by the second cell, wherein the one or more non-protected resources comprise resources on which the first cell may not reduce interference towards the second cell.
9. The first base station of claim 8 , wherein the SSB configuration indicates a plurality of candidate locations for the SSBs, wherein a plurality of the SSBs are transmitted via a same beam using a subset of candidate locations.
10. The first base station of claim 8 , wherein the sending further comprises: sending, by the first base station associated with the first cell to the second base station associated with the second cell, an interference coordination pattern including a plurality of bits identifying the first, second, and third interference protected resources on which the first cell will reduce interference towards the second cell.
11. The first base station of claim 8 , wherein the determining further comprises: determining, by the first base station, the fourth interference protected resource based on information received by the first base station from the second base station with respect to the second cell.
12. The first base station of claim 8 , wherein the at least one memory and the computer program code are further configured to, with the at least one processor, cause the first base station at least to reduce, by the first base station associated with the first cell, interference towards the second cell for the one or more interference protected resources.
13. The first base station of claim 12 , wherein the reducing interference comprises: omitting or reducing a signal transmission for at least one of a particular time, on a particular frequency, or via a particular beam, that would cause interference towards the second cell, for the one or more interference protected resources.
14. The first base station of claim 8 , wherein the at least one memory and the computer program code are further configured to, with the at least one processor, cause the first base station at least to send, by the first base station to the second base station, information about at least one synchronization signal block that is transmitted by the first cell.
15. A system comprising:
a first base station;
a second base station;
at least one processor; and
at least one 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 first base station to perform:
determining, by the first base station associated with a first cell based on a synchronization signal block (SSB) configuration indicating one or more resources on which the SSB may be transmitted by a second cell, one or more interference protected resources on which the first cell will reduce interference towards the second cell, wherein the determining comprises:
determining, by the first base station associated with the first cell, based on the SSB configuration, a first interference protected resource on which the SSB may be transmitted by the second cell and on which the first cell will reduce interference towards the second cell;
determining, by the first base station, a second interference protected resources based on the following SSB information received by the first base station from a second base station with respect to the second cell: information indicating a half frame that the second cell is using or is planning to use for SSB transmission; and information indicating one or more resources on which the SSB may be transmitted that the second cell is using or planning to use for SSB transmission;
selecting, by the first base station associated with the first cell, an interference coordination pattern, of a plurality of predetermined interference coordination patterns, wherein the selected predetermined interference coordination pattern indicates a third interference protected resource on which the SSB may be transmitted by the second cell and on which the first cell will reduce interference towards the second cell; and
determining, by the first base station, a fourth interference protected resource based on a predefined set of rules that allow usage or transmission of SSBs by the second cell via the interference protected resources; and
sending, by the first base station associated with the first cell to the second base station associated with the second cell, information identifying the first, second, and third interference protected resources on which the first cell will reduce interference towards the second cell, wherein the sending comprises:
sending an interference coordination pattern that identifies one or more of the first, second, and third interference protected resources on which the SSB may be transmitted by the second cell and one or more non-protected resources on which the SSB may be transmitted by the second cell, wherein the one or more non-protected resources comprise resources on which the first cell may not reduce interference towards the second cell.
16. The system of claim 15 , wherein the at least one memory and the computer program code are further configured to, with the at least one processor, cause the first base station at least to reduce, by the first base station associated with the first cell, interference towards the second cell for the one or more interference protected resources.
17. The system of claim 16 , wherein the reducing interference comprises: omitting or reducing a signal transmission for at least one of a particular time, on a particular frequency, or via a particular beam, that would cause interference towards the second cell, for the one or more interference protected resources.
18. The system of claim 15 , wherein the SSB configuration indicates a plurality of candidate locations for SSBs, wherein a plurality of the SSBs are transmitted via a same beam using a subset of candidate locations.