METHOD AND APPARATUS FOR TRANSMITTING DATA THROUGH INTER-ENB CARRIER AGGREGATION IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20170164255A1

    公开(公告)日:2017-06-08

    申请号:US15438056

    申请日:2017-02-21

    Abstract: The present invention relates to a method and an apparatus for transmitting data to user equipment through not only a current base station cell but also a neighboring base station cell via inter-eNB CA in a wireless communication system. A method for transmitting data though carrier aggregation in the wireless communication system, according to the present invention, comprises the steps of: a first base station transreceiving data with a terminal through at least two PDN connections; the first base station transmitting a carrier aggregation request message to a second base station for aggregating carriers, when the first base station determines to carry out inter-eNB carrier aggregation; the first base station receiving a carrier aggregation reply message from the second base station in response to the carrier aggregation request message; the first base station performing an RRC reconfiguration process with the terminal to notify to the terminal of the determination to perform the inter-eNB carrier aggregation; and the first base station transmitting a path change request message to a mobile management entity to correct a data transreceiving path, so that data on at least one PDN connection from among the PDN connections is transreceived through the second base station.

    METHOD AND APPARATUS FOR SUBSEQUENT CONDITIONAL PSCELL CHANGE IN A WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20250031123A1

    公开(公告)日:2025-01-23

    申请号:US18774173

    申请日:2024-07-16

    Abstract: A method performed by a master node (MN) in a wireless communication system is provided. The method includes receiving, from a source secondary node (S-SN), a secondary node (SN) change required message for initiating a subsequent conditional primary secondary cell group cell (PSCell) addition and change (CPAC), transmitting, to a plurality of candidate SNs, an SN addition request message, receiving, from the plurality of candidate SNs, an SN addition request acknowledge message, transmitting, to the S-SN and the plurality of candidate SNs, the information on the at least one PSCell, and receiving, from the plurality of candidate SNs, first information on an updated configuration for the at least one PSCell.

    METHOD FOR SUPPORTING SIDELINK-RELAY IN SPLIT RAN STRUCTURE

    公开(公告)号:US20240389181A1

    公开(公告)日:2024-11-21

    申请号:US18290537

    申请日:2022-05-10

    Abstract: The present disclosure relates to a communication technique that merges IoT technology with a 5G communication system for supporting higher data transmission rates than 4G systems, and a system for same. The present disclosure may be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail business, security and safety-related services, etc.) on the basis of 5G communication technology and IoT-related technology. Disclosed is a method for a base station, in which a CU and a DU are split, to service a terminal in a mobile communication system.

    METHOD AND APPARATUS FOR DYNAMICALLY CHANGING UPLINK CELL IN COMMUNICATION SYSTEM

    公开(公告)号:US20240224367A1

    公开(公告)日:2024-07-04

    申请号:US18557168

    申请日:2022-05-11

    CPC classification number: H04W76/20 H04W72/1268 H04W72/21 H04W72/566

    Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method for user equipment according to an embodiment of the present disclosure comprises the steps of: receiving, from a base station, first information indicating activation or deactivation of at least one uplink cell of a first cell group; transmitting, to the base station, second information indicating that the first information has been received; identifying, on the basis of the first information, whether or not, from among the at least one uplink cell, a first uplink cell has been activated; and if the first uplink cell has been activated, carrying out an uplink transmission via the first uplink cell.

    APPARATUS AND METHOD FOR PERFORMING DUAL CONNECTIVITY IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20240129181A1

    公开(公告)日:2024-04-18

    申请号:US18530866

    申请日:2023-12-06

    CPC classification number: H04L41/0668 H04L67/10 H04W28/0252 H04W88/02

    Abstract: A method of a central unit—control plane (CU-CP) included in a base station in a wireless communication system and an apparatus therefor are provided. The method includes identifying information on a radio link of at least one cell associated with the base station, transmitting, to a central unit—user plane (CU-UP), information indicating downlink transmission stop or resume of the CU-UP included in the base station based on the information on the radio link, and transmitting, to a distributed unit (DU), information indicating downlink transmission stop or resume of the DU based on the information on the radio link. The method relates to converging a 4th-Generation (4G) or a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4G system with a technology for Internet of Things (IoT), and may be applied to intelligent services based on the 5G communication technology and the IoT-related technology.

    DEVICE AND METHOD FOR SUPPORTING CONDITIONAL HANDOVER IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20220279391A1

    公开(公告)日:2022-09-01

    申请号:US17634128

    申请日:2020-08-10

    Abstract: The disclosure relates to a 5th Generation (5G) or pre-5G communication system for supporting a higher data transfer rate after a 4th Generation (4G) communication system such as long term evolution (LTE). According to various embodiments of the disclosure, an operation method performed by a Center Unit (CU)-Control Plane (CP) of a candidate Base Station (BS) may include transmitting a first message for a bearer context setup request to a CU-User Plane (UP) of the candidate BS, wherein the first message includes information for indicating a conditional handover which is a handover performed by a User Equipment (UE) when at least one execution condition is satisfied, and receiving a second message for a bearer context setup response from the CU-UP.

Patent Agency Ranking