US 12,267,260 B2
Synchronization signaling block compatible interference coordination patterns to reduce interference in wireless networks
Ingo Viering, Munich (DE); Mikko Säily, Laukkoski (FI); and Jorma Johannes Kaikkonen, Oulu (FI)
Assigned to Nokia Technologies Oy, Espoo (FI)
Appl. No. 17/625,169
Filed by Nokia Technologies Oy, Espoo (FI)
PCT Filed Jul. 15, 2019, PCT No. PCT/IB2019/056025
§ 371(c)(1), (2) Date Jan. 6, 2022,
PCT Pub. No. WO2021/009538, PCT Pub. Date Jan. 21, 2021.
Prior Publication US 2022/0263615 A1, Aug. 18, 2022
Int. Cl. H04L 5/00 (2006.01)
CPC H04L 5/0032 (2013.01) [H04L 5/0048 (2013.01)] 18 Claims
OG exemplary drawing
 
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.