US 12,451,930 B2
Cooperative beamforming in wireless network
David Lopez-Perez, Blanchardstown (IE); Adrian Garcia Rodriguez, Santa Cruz de Tenerife (ES); Mika Kasslin, Espoo (FI); and Lorenzo Galati Giordano, Stuttgart (DE)
Assigned to Nokia Technologies Oy, Espoo (FI)
Appl. No. 17/299,687
Filed by Nokia Technologies Oy, Espoo (FI)
PCT Filed Jan. 11, 2019, PCT No. PCT/FI2019/050019
§ 371(c)(1), (2) Date Jun. 3, 2021,
PCT Pub. No. WO2020/144393, PCT Pub. Date Jul. 16, 2020.
Prior Publication US 2022/0038140 A1, Feb. 3, 2022
Int. Cl. H04B 7/026 (2017.01); H04B 7/06 (2006.01)
CPC H04B 7/026 (2013.01) [H04B 7/0617 (2013.01); H04B 7/0626 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An apparatus, 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 apparatus at least to:
transmit, from a first wireless network, an inter-network beamforming setup request to an access node of a second wireless network, the inter-network beamforming setup request message comprising an identifier of at least one station of the second wireless network;
receive, from the access node as a response to the inter-network beamforming setup request, an inter-network beamforming setup response message indicating that the at least one station of the second wireless network has added an identifier of the apparatus to a beamforming address set;
transmit an announcement frame indicating the at least one station of the second wireless network;
transmit a channel sounding signal;
receive a beamforming report comprising channel state information from the at least one station of the second wireless network; and
perform null steering beamforming transmission in the first wireless network on the basis of the received channel state information.