US 12,250,742 B2
User equipment and a master E-UTRAN node B
Takako Hori, Sakai (JP); Shohei Yamada, Sakai (JP); and Hidekazu Tsuboi, Sakai (JP)
Assigned to SHARP KABUSHIKI KAISHA, Sakai (JP)
Filed by Sharp Kabushiki Kaisha, Osaka (JP)
Filed on Dec. 19, 2023, as Appl. No. 18/544,533.
Application 18/544,533 is a continuation of application No. 17/846,144, filed on Jun. 22, 2022, granted, now 11,895,721.
Application 17/846,144 is a continuation of application No. 16/620,926, granted, now 11,399,400, issued on Jul. 26, 2022, previously published as PCT/JP2018/023014, filed on Jun. 15, 2018.
Claims priority of application No. 2017-117491 (JP), filed on Jun. 15, 2017.
Prior Publication US 2024/0129984 A1, Apr. 18, 2024
Int. Cl. H04W 76/15 (2018.01); H04W 76/11 (2018.01); H04W 76/27 (2018.01); H04W 80/08 (2009.01); H04W 84/20 (2009.01)
CPC H04W 76/15 (2018.02) [H04W 76/11 (2018.02); H04W 76/27 (2018.02); H04W 80/08 (2013.01); H04W 84/20 (2013.01)] 2 Claims
OG exemplary drawing
 
1. A user equipment (UE) supports Evolved Universal Terrestrial Radio Access New Radio Dual Connectivity (EN-DC), the UE comprising:
receiver circuit configured to receive an RRCConnectionReconfiguration message from a Master E-UTRAN Node B (MeNB); and
configuration circuit configured to establish a Data Radio Bearer (DRB) in accordance with a DRB configuration information in a case that the DRB configuration information is included in the RRCConnectionReconfiguration message, wherein,
the DRB is a Master Cell Group (MCG) bearer for the EN-DC,
the DRB is used as a path for transmitting a user data,
the user data is transferred through a user plane (UP) between the UE and the MeNB,
a physical (PHY) layer, a Medium Access Control (MAC) layer, a Radio Link Control (RLC) layer, and a Packet Data Convergence Protocol (PDCP) Layer are present in a protocol stack of the UP,
the MAC layer and the RLC layer are layers for Evolved Universal Terrestrial Radio Access (E-UTRA), and
the PDCP layer is a layer for New Radio (NR).