US 12,476,749 B2
Network node, wireless communication device and methods for configuring side-link resources in wireless communication network
Jan Christoffersson, Luleå (SE); Mårten Ericson, Gammelstad (SE); and Min Wang, Luleå (SE)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Appl. No. 18/259,364
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Jan. 19, 2021, PCT No. PCT/SE2021/050028
§ 371(c)(1), (2) Date Jun. 26, 2023,
PCT Pub. No. WO2022/159009, PCT Pub. Date Jul. 28, 2022.
Prior Publication US 2024/0063958 A1, Feb. 22, 2024
Int. Cl. H04L 5/00 (2006.01); H04W 24/10 (2009.01); H04W 72/542 (2023.01); H04W 76/14 (2018.01)
CPC H04L 5/0033 (2013.01) [H04L 5/0048 (2013.01); H04L 5/0069 (2013.01); H04L 5/0094 (2013.01); H04W 24/10 (2013.01); H04W 72/542 (2023.01); H04W 76/14 (2018.02)] 20 Claims
OG exemplary drawing
 
1. A method performed in a network node for configuring sidelink (SL) resources in a wireless communication network comprising a number of groups of wireless communication devices in a cell served by the network node, wherein the method comprises:
configuring a discovery signal associated with an identity;
configuring which wireless communication devices in which groups to transmit and/or receive the configured discovery signal, wherein each group of the wireless communication devices is configured with a different set of SL resources;
determining whether the number of groups of wireless communication devices are isolated from each other based on one or more reports related to the discovery signal; and
performing one of the following based on the determination of whether the number of groups of wireless communication devices are isolated from each other:
reconfiguring the number of groups of the wireless communication devices (with a same set of SL resources, when it is determined that the number of groups of wireless communication devices are isolated from each other;
configuring the number of groups of the wireless communication devices with different sets of SL resources, when it is determined that the number of groups of wireless communication devices are not isolated from each other; or
rearranging the wireless communication devices in the number of groups of wireless communication devices, when it is determined that the number of groups of wireless communication devices are not isolated from each other.
 
14. A method performed in a wireless communication device for monitoring sidelink (SL) interference between a number of groups of wireless communication devices in a cell served by a network node in a wireless communication network, wherein each group of the wireless communication devices is configured by the network node with a different set of SL resources, wherein the method comprises:
receiving from the network node a configuration of a discovery signal, wherein:
the configuration of the discovery signal includes the following: time and frequency locations of the discovery signal, and an identity of the discovery signal; and
the identity of the discovery signal includes any one of the following: a group identity, an identity of a wireless communication device in a group, or an identity linked to the time and frequency locations of the discovery signal;
receiving from the network node an instruction indicating one or more of the following:
configurations for which wireless communication devices in which group to transmit the discovery signal, and when to receive the discovery signal;
transmitting and/or receiving the discovery signal based on the received instruction; and
performing the following operations when the received instruction indicates when to receive the discovery signal:
measuring a signal strength of discovery signals transmitted by the wireless communication devices in other groups; and
determining whether to send a report related to the discovery signal based on the measured signal strength of the discovery signal.