US 12,335,818 B2
Packet data convergence protocol (PDCP) enhancement for multicast and broadcast services
Alireza Babaei, Fairfax, VA (US)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by Toyota Jidosha Kabushiki Kaisha, Toyota (JP)
Filed on Aug. 2, 2023, as Appl. No. 18/364,125.
Application 18/364,125 is a continuation of application No. 17/451,307, filed on Oct. 18, 2021, granted, now 11,765,555.
Claims priority of provisional application 63/094,307, filed on Oct. 20, 2020.
Prior Publication US 2024/0064493 A1, Feb. 22, 2024
Int. Cl. H04W 4/06 (2009.01); H04W 80/04 (2009.01)
CPC H04W 4/06 (2013.01) [H04W 80/04 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method of multicast broadcast service (MBS) data transmission, comprising:
transmitting, by a base station (BS), one or more configuration parameters of a multicast radio bearer (MRB) associated with a first MBS service, wherein the BS comprises a central unit (CU), a first distributed unit (DU), and a second DU;
receiving, by the first DU, from a packet data convergence protocol (PDCP) entity in the CU, a PDCP packet associated with the MRB;
transmitting, by the first DU, to a user equipment (UE), a first transport block comprising the PDCP packet using unicast;
receiving, by the second DU, from the PDCP entity in the CU, a duplicate of the PDCP packet associated with the MRB; and
transmitting, by the second DU, to one or more UEs, a second transport block comprising the duplicate of the PDCP packet using multicast.