METHOD AND DEVICE FOR COEXISTENCE OF AUTOMATIC TRANSMISSION AND CG RETRANSMISSION

    公开(公告)号:US20240129916A1

    公开(公告)日:2024-04-18

    申请号:US18547411

    申请日:2022-03-15

    CPC classification number: H04W72/1268 H04L1/1812 H04W72/56

    Abstract: The present disclosure relates to a communication technique for merging IoT technology with a 5G communication system for supporting a data transmission rate higher than that of a 4G system, and a system therefor. The present disclosure may be applied to intelligence services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail businesses, security and safety related services, etc.) based on a 5G communication technology and an IoT-related technology. The present invention provides a method and a device for performing CG automatic transmission and automatic retransmission.

    METHOD AND DEVICE FOR CONTROLLING DUPLICATE PACKET TRANSMISSION IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20240129796A1

    公开(公告)日:2024-04-18

    申请号:US18395100

    申请日:2023-12-22

    CPC classification number: H04W28/06 H04W48/16 H04W80/02 H04W84/18

    Abstract: The disclosure relates to a method and apparatus for controlling packet duplication transmission in a wireless communication system. According to an embodiment of the disclosure, a method, performed by a user equipment (UE), of controlling packet duplication transmission in a wireless communication system includes: receiving a packet duplication configuration for a radio bearer, through a radio resource control (RRC) message, from a base station; determining whether each of a plurality of radio link control (RLC) entities is configured to be used for uplink packet duplication transmission; and performing, when packet duplication transmission is activated, packet duplication transmission by using a RLC entity set to be used for uplink packet duplication transmission.

    SYSTEM AND METHOD OF MULTICAST RECEPTION AND SMALL DATA TRANSMISSION

    公开(公告)号:US20240057130A1

    公开(公告)日:2024-02-15

    申请号:US18363392

    申请日:2023-08-01

    CPC classification number: H04W72/30 H04W4/06 H04W76/27

    Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. The present disclosure provides an apparatus, a method and a system for MBS multicast reception and small data transmission. A method performed by a terminal includes receiving, from a BS, an RRC release message including information indicating a suspend configuration for an RRC inactive state; identifying whether an SDT procedure is ongoing in the RRC inactive state, in case that there is a configuration by an upper layer for MBS multicast reception; and monitoring a paging channel for paging using a TMGI associated with an MBS session, based on the SDT procedure being not ongoing. The MBS session is associated with a bearer for the MBS multicast reception.

    METHOD AND SYSTEM FOR HANDLING LOSSLESS OPERATIONS FOR MBS IN 5G COMMUNICATION NETWORK

    公开(公告)号:US20240031066A1

    公开(公告)日:2024-01-25

    申请号:US18032382

    申请日:2021-10-21

    CPC classification number: H04L1/1657 H04L1/1858 H04W36/0007 H04W80/02

    Abstract: The present disclosure relates to a 5G communication system or a 6G communication system for supporting higher data rates beyond a 4G communication system such as long term evolution (LTE). Embodiments herein disclose methods for handling lossless operations for a MBS in a wireless communication network (1000). The method includes receiving, by a network entity (200), a PDCP status report from a UE (100). The PDCP status report includes missing PDU. The missing PDU is detected during at least one of a MBS bearer type change, a MBS data transfer and a handover procedure involving a MBS bearer. Further, the method includes determining, by the network entity (200), a PDCP PDU for retransmission of the missing PDU. Further, the method includes retransmitting, by the network entity (200), the determined PDCP PDU to the UE (100) over a PTP path. The method can be used to is enable reliability with efficient retransmission during a PTM-PTP switching, a handover and a normal operation for a NR MBS. Based on the proposed method, a UE MBS service reception performance is enhanced.

    TIMER OPERATING METHOD AND DEVICE ACCORDING TO HARQ ACTIVATION

    公开(公告)号:US20230421306A1

    公开(公告)日:2023-12-28

    申请号:US18038363

    申请日:2021-12-24

    CPC classification number: H04L1/1848 H04L1/1864

    Abstract: The present disclosure relates to a communication technique merging IoT technology with a 5th generation (5G) or pre-5G communication system for supporting a data transmission rate higher than that of a 4th generation (4G) communication system, such as long term evolution (LTE), and a system therefor. The present disclosure can be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail businesses, security—and safety-related services, and the like) on the basis of 5G communication technology and IoT-related technology. According to various embodiments of the present invention, a timer operating method and device according to HARQ activation can be provided.

    METHOD AND APPARATUS FOR PACKET TRANSMISSION AT SURVIVAL TIME STATE IN A WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20230421296A1

    公开(公告)日:2023-12-28

    申请号:US18341525

    申请日:2023-06-26

    CPC classification number: H04L1/08 H04W72/20

    Abstract: The present disclosure relates to a 5th generation (5G) or 6th generation (6G) communication system for supporting a higher data transmission rate. According to to an embodiment of the present disclosure, a method performed by a user equipment (UE) in a wireless communication system includes: receiving, from a base station, information on a configured grant allocating periodic resources for uplink transmissions; activating a packet duplication operation in case that an uplink transmission based on a resource allocated by the configured grant in a first cell is not successful; and performing the packet duplication operation based on a next resource allocated by the configured grant in the first cell and a second cell.

    METHOD AND DEVICE FOR TRANSMITTING AND RECEIVING DATA IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20230217338A1

    公开(公告)日:2023-07-06

    申请号:US17928094

    申请日:2021-05-21

    CPC classification number: H04W36/305 H04W24/08

    Abstract: The present disclosure relates to a method and apparatus for transmitting and receiving data in a wireless communication system. An operating method of a terminal that is able to communicate with a master node and a secondary node in a wireless communication system includes detecting a master cell group (MCG) failure related to the master node, in response to the detecting of the MCG failure, changing a primary path of a split signaling radio bearer 1 (SRB1) from a radio link control (RLC) bearer of an MCG related to the master node to one RLC bearer from among a plurality of RLC bearers of a secondary cell group (SCG) related to the secondary node, based on a pre-determined criterion, and transmitting a message related to the MCG failure to the master node, by using the RLC bearer of the SCG changed as the primary path.

    APPARATUS AND METHOD FOR CONTROLLING SIDELINK AUXILIARY CARRIER IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20230128455A1

    公开(公告)日:2023-04-27

    申请号:US17759844

    申请日:2021-01-29

    Abstract: Provided is a first terminal for performing unicast communication between terminals in a wireless communication system. The first terminal may be configured to: transmit a packet to a second terminal through a first sidelink carrier; determine a failure of the first sidelink carrier based on at least one of a number of times of retransmission of the transmitted packet, a number of times of reception of hybrid automatic repeat request (HARQ) negative acknowledgement (NACK) or discontinuous transmission (DTX) for the transmitted packet, or a number of times of continuous out of synch (OOS) for the first sidelink carrier; and determine whether to perform a radio link failure (RLF) handling procedure or whether to perform a carrier failure handling procedure, based on a result of the determining of the failure and the first sidelink carrier, wherein the carrier failure handling procedure may be performed based on at least one of a connection state between the first terminal and a base station or a need for multi-carrier transmission.

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