公开(公告)号：US20240196287A1

公开(公告)日：2024-06-13

申请号：US18539106

申请日：2023-12-13

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sun Mi JUN ,  II Gyu KIM ,  Jung Im KIM ,  Jun Sik KIM ,  SoonGi PARK ,  Sung Cheol CHANG ,  Hee Sang CHUNG ,  Yong Seouk CHOI

IPC: H04W36/06 ,  H04W36/30 ,  H04W76/19 ,  H04W76/20

CPC classification number: H04W36/06 ,  H04W36/30 ,  H04W76/19 ,  H04W76/20

Abstract: Disclosed are radio bearer management method and apparatus for multi-radio multi-connectivity. A method of a terminal may comprise: transmitting UP data to at least one node among an MN or SN through a first DRB; and in response to identifying a UL coverage loss in the second SN, determining switching from the first DRB to a second DRB based on a bearer switching rule.

公开(公告)号：US20240187926A1

公开(公告)日：2024-06-06

申请号：US18525714

申请日：2023-11-30

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jun Sik KIM ,  Soon Gi PARK ,  Young Jo KO ,  Seok Bong HYUN

IPC: H04W28/06 ,  H04W28/086

CPC classification number: H04W28/06 ,  H04W28/086

Abstract: A method of a central unit (CU) may comprise: receiving, from a terminal, measurement information for radio access points; configuring a cluster using two or more radio access points among the radio access points based on the measurement information; and generating first data to which a cluster header including a cluster identifier of the cluster is attached; and transmitting the first data to the two or more radio access points, wherein second data generated in the two or more radio access points includes the first data and a packet data convergence protocol (PDCP) header, the CU performs a first partial PDCP function, and the two or more radio access points perform a second partial PDCP function.

公开(公告)号：US20240187889A1

公开(公告)日：2024-06-06

申请号：US18525314

申请日：2023-11-30

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jung Im KIM ,  Young Jo KO ,  Jun Sik KIM ,  Soon Gi PARK ,  Sung Cheol CHANG ,  Sun Mi JUN ,  Hee Sang CHUNG ,  Yong Seouk CHOI

IPC: H04W24/04 ,  H04B7/06

CPC classification number: H04W24/04 ,  H04B7/06952

Abstract: A method of a base station may comprise: detecting a beam failure for a terminal; in response to detecting the beam failure, transmitting a beam recovery early indicator (BREI) to the terminal based on a beam sweeping scheme; receiving a BREI response from the terminal; and identifying a preferred beam of the terminal based on reception of the BREI response.

公开(公告)号：US20230171832A1

公开(公告)日：2023-06-01

申请号：US18070677

申请日：2022-11-29

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sun Mi JUN ,  Il Gyu KIM ,  Jun Sik KIM ,  Soon Gi PARK ,  Sung Cheol CHANG ,  Hee Sang CHUNG ,  Yong Seouk CHOI

IPC: H04W76/16 ,  H04W8/00

CPC classification number: H04W76/16 ,  H04W8/005

Abstract: A apparatus and a method thereof for managing access nodes for a low-latency service in a multi-radio multi-connectivity network are proposed. The method of operating user equipment (UE) in a wireless communication system includes a process of scanning a plurality of secondary nodes (SNs) where radio signals are measured around the UE, a process of transmitting a scanning result to a master node (MN), a process of receiving information about an SN group from the MN, a process of accessing an active SN on the basis of the information about the SN group, and a process of transmitting a message for establishing and modifying a protocol data unit (PDU) session to a core network (CN).

公开(公告)号：US20220158806A1

公开(公告)日：2022-05-19

申请号：US17523307

申请日：2021-11-10

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Soon Gi PARK ,  Jun Sik KIM ,  Heesoo LEE ,  Seok Bong HYUN

IPC: H04L5/00 ,  H04W72/04 ,  H04B7/0426 ,  H04B1/00

Abstract: An operation method of a central control apparatus in a communication system may include: configuring a unit cluster using a first transceiver and a second transceiver; performing first scheduling so that at least one port among N ports of the first transceiver and M ports of the second transceiver provides communication services to a service coverage of the unit cluster for each scheduling period in a beam sweeping scheme by using a first sub-frequency band; generating first scheduling information including information on identifiers of transceivers and indexes of ports proving the communication services for each scheduling period according to the first scheduling, and transmitting the first scheduling information to the terminal; and controlling the first transceiver and the second transceiver to communicate with the terminal according to the first scheduling information.