US 11,758,463 B2
Methods of mobile device based relay for coverage extension
Pei-Kai Liao, Hsin-Chu (TW)
Assigned to MediaTek INC., Hsin-Chu (TW)
Filed by MEDIATEK INC., Hsin-Chu (TW)
Filed on Apr. 28, 2020, as Appl. No. 16/860,265.
Claims priority of provisional application 62/839,823, filed on Apr. 29, 2019.
Prior Publication US 2020/0344665 A1, Oct. 29, 2020
Int. Cl. H04W 8/00 (2009.01); H04W 40/22 (2009.01); H04W 76/14 (2018.01); H04W 72/02 (2009.01); H04W 72/23 (2023.01); H04W 56/00 (2009.01); H04W 88/04 (2009.01); H04W 92/18 (2009.01); H04W 92/10 (2009.01)
CPC H04W 40/22 (2013.01) [H04W 8/005 (2013.01); H04W 72/02 (2013.01); H04W 72/23 (2023.01); H04W 76/14 (2018.02); H04W 56/0015 (2013.01); H04W 88/04 (2013.01); H04W 92/10 (2013.01); H04W 92/18 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method comprising:
receiving higher layer configuration information from a serving base station by a relay user equipment (UE) over a downlink connection, wherein the higher layer configuration information comprises a radio resource control (RRC) connection configuration for an RRC connection between the serving base station and one or more remote UEs via the relay UE and a resource pool configuration related to sidelink transmissions between the relay UE and the one or more remote UEs;
establishing sidelinks between the relay UE and the one or more remote UEs, wherein the one or more remote UEs belong to a relay UE group served by the same base station;
forwarding the higher layer configuration information to each of the remote UEs in the relay UE group, wherein the RRC connection between the serving base station and a remote UE is established using the RRC connection configuration provided by the relay UE over one of the established sidelinks, and wherein the RRC connection configuration comprises a number of remote UEs served by the relay UE and measurement results; and
selecting a radio resource within the resource pool configuration for data transmission to the remote UE within the relay UE group, wherein the selection is based on decoding of sidelink control information, sidelink measurements, and detection of sidelink transmission.