US 11,855,917 B2
System, data transmission method and network equipment supporting PDCP duplication function method and device for transferring supplementary uplink carrier configuration information and method and device for performing connection mobility adjustment
Weiwei Wang, Beijing (CN); Lixiang Xu, Beijing (CN); Xiaowan Ke, Beijing (CN); and Hong Wang, Beijing (CN)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Dec. 23, 2021, as Appl. No. 17/561,424.
Application 17/561,424 is a continuation of application No. 16/611,212, granted, now 11,212,048, previously published as PCT/KR2018/005237, filed on May 4, 2018.
Claims priority of application No. 201710316543.8 (CN), filed on May 5, 2017; application No. 201710461700.4 (CN), filed on Jun. 16, 2017; application No. 201810024386.8 (CN), filed on Jan. 10, 2018; and application No. 201810028304.7 (CN), filed on Jan. 11, 2018.
Prior Publication US 2022/0158785 A1, May 19, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 5/00 (2006.01); H04W 76/22 (2018.01); H04W 72/29 (2023.01)
CPC H04L 5/0032 (2013.01) [H04W 72/29 (2023.01); H04W 76/22 (2018.02)] 20 Claims
OG exemplary drawing
 
1. A central unit (CU) of a base station in a wireless communication system, the CU comprising:
a transceiver; and
at least one processor coupled with the transceiver and configured to:
transmit, to a distributed unit (DU) of the base station, a first message for a data radio bearer (DRB) supporting a packet data convergence protocol (PDCP) duplication, the first message comprising first configuration information on two different uplink tunnels on an interface between the CU and the DU,
receive, from the DU, a second message as a response to the first message, the second message comprising second configuration information on two different downlink tunnels on the interface between the CU and the DU, and
transmit or receive, to or from the DU, a data packet of the DRB by using the two different downlink tunnels or the two different uplink tunnels based on the first configuration information and the second configuration information.