公开(公告)号：US12231194B2

公开(公告)日：2025-02-18

申请号：US18077420

申请日：2022-12-08

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Seung Eun Hong ,  Jee Hyeon Na ,  Soo Jung Jung

IPC: H04B7/0456 ,  H04B7/0426 ,  H04B7/0491

Abstract: An operation method of a CP operating in an ultra-dense cooperative transmission network may include: obtaining a large-scale propagation gain (LPG) matrix representing channel gains between M access points (APs) and K user terminals, M being a natural number greater than or equal to 1, and K being a natural number greater than or equal to 1; obtaining information on a required power consumption; and transmitting, to at least part of the M APs, a control message indicating the at least part of the M APs to perform a control operation for reducing power consumption of the ultra-dense cooperative transmission network based on the required power consumption and the LPG matrix.

公开(公告)号：US11743863B2

公开(公告)日：2023-08-29

申请号：US17838177

申请日：2022-06-11

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jae Heung Kim ,  Jung Im Kim ,  Kyoung Seok Lee ,  Soo Jung Jung ,  Seung Chan Bang ,  Byung Han Ryu

IPC: H04W68/02 ,  H04W72/23 ,  H04L5/00

CPC classification number: H04W68/025 ,  H04L5/0053 ,  H04W68/02 ,  H04W72/23

Abstract: Provided is a method for transmitting paging information in a cellular system. An object of the method is transmitting paging information which can improve applicability of a limited radio resource by variably and flexibly setting up and mapping a transport channel and a physical channel in order to transmit information notifying start of downlink information from a base station to a terminal in a cellular system for packet transmission. The method includes the steps of: forming a paging channel (PCH) in a transport channel corresponding to generation of paging information; setting a paging indication channel (PICH) based on the paging information and forming the paging indication channel in a radio resource of a physical layer; and allocating the paging channel to the radio resource of the physical layer.

公开(公告)号：US11641223B2

公开(公告)日：2023-05-02

申请号：US17462529

申请日：2021-08-31

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Soo Jung Jung ,  Seung Eun Hong

IPC: H04B7/0452 ,  H04W24/02

Abstract: An operation method of a CP may include: collecting, from terminals or ANs, information on AN(s) to which each of the terminals is connectable, and determining a set of active AN(s) based on the information; adjusting connections between active AN(s) and the terminals based on cooperative transmission constraints; calculating first energy efficiency according to the active AN(s), and calculating second energy efficiency in a state in which at least one AN of active AN(s) is deactivated or activated; and maintaining the set of active AN(s) when second energy efficiency is not improved over first energy efficiency, and updating the set of active AN(s) by excluding or further including the at least one AN when second energy efficiency is improved over first energy efficiency, and performing iteratively from the calculating first energy efficiency and second energy efficiency.