US 12,219,527 B2
Methods providing resource coordination information between ran nodes for sidelink communications and related network nodes
Gino Masini, Stockholm (SE); Marco Belleschi, Solna (SE); Filip Barac, Huddinge (SE); and Mohammed Yazid Lyazidi, Hässelby (SE)
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
Appl. No. 17/427,384
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Jan. 14, 2020, PCT No. PCT/EP2020/050811
§ 371(c)(1), (2) Date Jul. 30, 2021,
PCT Pub. No. WO2020/164836, PCT Pub. Date Aug. 20, 2020.
Claims priority of provisional application 62/804,054, filed on Feb. 11, 2019.
Prior Publication US 2022/0104179 A1, Mar. 31, 2022
Int. Cl. H04W 72/02 (2009.01); H04L 1/1607 (2023.01); H04W 4/40 (2018.01); H04W 72/0446 (2023.01); H04W 72/0453 (2023.01); H04W 72/542 (2023.01); H04W 76/15 (2018.01)
CPC H04W 72/02 (2013.01) [H04L 1/1614 (2013.01); H04W 4/40 (2018.02); H04W 72/0446 (2013.01); H04W 72/0453 (2013.01); H04W 72/542 (2023.01); H04W 76/15 (2018.02)] 13 Claims
OG exemplary drawing
 
1. A method of operating a master radio access network, RAN, node in a wireless communication network, the method comprising:
transmitting, to a secondary RAN node, a secondary RAN node addition or modification request message to request preparation or modification of resources for dual connectivity communication for a wireless terminal, and
receiving a response from the secondary RAN node, responsive to the addition or modification request message,
wherein resource coordination information is included as an information element (IE) of the secondary RAN node addition or modification request message and defines at least one sidelink communication resource for a wireless terminal served by the master RAN node;
wherein the resource coordination information includes a bitmap defining the at least one sidelink communication resource that is available for the wireless terminal to use for sidelink communication;
wherein each bit of the bitmap corresponds to a time resource, wherein a first value of a bit of the bitmap indicates that the respective time resource is available for the wireless terminal to use for sidelink communication, and wherein a second value of a bit of the bitmap indicates that the respective time resource is not available for the wireless terminal to use for sidelink communication.