Lg Electronics Inc.

Samsung Electronics Co., Ltd.

Yonsei University

Heejeong Cho

Eunjong Lee

Genebeck Hahn

Ilmu Byun

Hyeyoung Choi

Jaehoon Chung

Jiwon Kang

Hyunsoo Ko

Heejin Kim

Kungmin Park

Hyunjin Shim

Youngsoo Yuk

Seungjune Yi

Sunyoung Lee

Kiseon Ryu

Sunghoon Jung

Youngdae Lee

Hongsuk Kim

Jeonggu Lee

Jinsam Kwak

Giwon Park

Sunam Kim

Joonkui Ahn

Gyeongcheol Lee

Geumsan Jo

Inuk Jung

Suckchel Yang

Jeongki Kim

Jinmin Kim

Jian Xu

Daewook Byun

KiTae Kim

Yongho Kim

Seokjung Kim

Sangsoo Lee

Sanghwi Lee

Jaehyeon Seo

Jeongdon Kang

Killyeon Kim

Yoonjung Jung

Yunjung Yi

Kijun Kim

Jinsoo Choi

Hangyu Cho

Laeyoung Kim

Hyunsook Kim

Kilbom Lee

Hyangsun You

Dongcheol Kim

Jinsook Ryu

Youngtae Kim

Jin Soo Lee

Myungjune Youn

Seunghyun Kang

Jinho Choi

Seonglyun Kim

Iimu Byun

Genebeck Hanh

Jeemin Kim

Hyesung Kim

Genebeck Hann

The present invention relates to a method of performing a Random Access (RA) procedure by a user equipment (UE) in a wireless communication system. Especially, the method includes the steps of generating a data unit; transmitting a first MsgA and a second MsgA to a network, wherein the first MsgA includes a first RA preamble and the data unit, and wherein the second MsgA includes a second RA preamble and the data unit; starting a first window for monitoring a first MsgB for the first MsgA and a second window for monitoring a second MsgB for the second MsgA; and monitoring the first MsgB until the first window expires and a second MsgB until the second window expires, wherein, when one of the first MsgB and the second MsgB is detected and when the detected MsgB includes successRAR, both the first and second windows are stopped.

Method and apparatus for performing random access procedure in wireless communication system

The present invention relates to a method of transmitting a buffer status report (BSR) by a user equipment (UE) in a wireless communication system. Especially, the method includes the steps of receiving information on a logical channel from a network, wherein the information indicates that the logical channel is one of a first state or a second state; triggering the BSR when uplink (UL) data for the logical channel becomes available and when either none of other logical channels which are the indicated state contains any available UL data or the UL data belongs to the logical channel with higher priority than a priority of any logical channel containing available UL data and being the indicated state; and transmitting the BSR to the network.

Method and apparatus for transmitting buffer status report in wireless communication system

The present invention relates to a method of performing a random access (RA) procedure by a user equipment (UE) in a wireless communication system. Especially, the method includes the steps of transmitting a RA preamble to a network on a first bandwidth part (BWP); receiving a response message of the RA preamble from the network, wherein the response message includes a BWP switch indication indicating a second BWP and an uplink (UL) grant on the second BWP; and transmitting an uplink data or a connection request message to the network on the second BWP using the UL grant.

Method and apparatus for switching bandwidth part during random access procedure in wireless communication system

A method and apparatus for dynamic configuration of a maximum number of sidelink retransmissions for a data unit in a wireless communication system is provided. A first wireless device in sidelink receives, from a network, information related to a first retransmission number for a first logical channel and a second retransmission number for a second logical channel. The first wireless device determines a retransmission number of a data unit among the first retransmission number and the second retransmission number, and performs sidelink transmission of the data unit to a second wireless device based on the retransmission number of the data unit.

Dynamic configuration of maximum number of sidelink retransmissions for data unit

The present invention relates to a method of performing a handover procedure by a user equipment (UE) in a wireless communication system. Especially, the method includes the steps of receiving a handover command containing information about at least one COUNT value from a first network; establishing a first Packet Data Convergence Protocol (PDCP) entity associated with a second network while maintaining a second PDCP entity associated with the first network; performing a random access procedure with the second network; and based on a handover failure with the second network being detected, transmitting a message for informing the handover failure to the first network with setting at least one state variable for the first PDCP entity according to the at least one COUNT value.

Method and apparatus for handling state variables for security during handover procedure in wireless communication system

In the present disclosure, a UE transmits a random access preamble (RAP) on a physical random access channel (PRACH) and a common control channel (CCCH) service data unit (SDU) on a physical uplink channel (PUSCH). The UE receives a medium access control (MAC) protocol data unit (PDU) based on transmitting the RAP and the CCCH SDU. The MAC PDU may include a MAC PDU associated with a contention resolution identity (CRID) in the MAC PDU. The UE determines whether a MAC SDU is present or not in the MAC PDU, based on the MAC SDU indicator associated with a CRID in the MAC PDU in a state in which the CRID matches the CCCH SDU.

Method of performing random access (RA) procedure, and transmitting device, apparatus and storage medium therefor, and method and apparatus for transmitting mac PDU of RA procedure

In an electronic device launching a communication service according to various embodiments and a method of operating the electronic device, the electronic device includes a memory configured to store device information corresponding to the electronic device; a first communication module comprising communication circuitry configured to establish a first communication connection corresponding to a first communication method with an external server; a second communication module comprising communication circuitry configured to establish a second communication connection corresponding to a second communication method with an external electronic device; and a processor, wherein the processor is configured to establish the first communication connection with the external server using the first communication module, to transmit the device information to the external server through the first communication connection, to receive one or more service identifiers corresponding to one or more services available to the external electronic device from the external server, to establish the second communication connection with the external electronic device using the second communication module, and to transmit control information based on at least a part of an identifier corresponding to at least one service of the one or more services to the external electronic device to activate the at least one service in the external electronic device.

Electronic device for managing embedded subscriber identification module and method for same

In the present disclosure, a UE transmits a random access preamble (RAP) on a physical random access channel (PRACH) and a control channel (CCCH) service data unit (SDU) on a physical uplink shared channel (PUSCH); and receives a medium access control (MAC) protocol data unit (PDU) based on transmitting the RAP and the CCCH SDU. The MAC PDU includes a MAC subheader. The MAC subheader includes a first indicator field regarding whether the MAC subheader include an RAP identity (ID) or not. The MAC subheader further includes a second indicator field regarding whether the MAC subheader includes a backoff indicator field or not, based on the first indicator field set to a value indicating that the MAC subheader does not include an RAP ID.

Method of performing random access (RA) procedure, and transmitting device, apparatus and storage medium therefor, and method and apparatus for transmitting MAC PDU of RA procedure

A method and apparatus for service data adaptation protocol (SDAP) configuration for a destination in sidelink communication is provided. A wireless device establishes a service data adaptation protocol (SDAP) entity based on a SDAP configuration per destination of a sidelink communication. This can be achieved by the wireless device receiving a configuration of one or more sidelink radio bearers (SLRBs), which includes an SDAP configuration for each of the one or more SLRBs. Each SDAP configuration, in turn, includes a list of Quality of Service Flow Identities (QFIs) for a corresponding destination, from among one or more destinations, to be mapped to a corresponding SLRB. One or more transmitting SDAP entities can then be established for each of the one or more destinations.

SDAP configuration for destination in sidelink communication

The present invention relates to a method of transmitting buffer status report (BSR) by a node in a wireless communication system. In particular, the method includes the steps of: transmitting, to a parent node, a first BSR with starting a timer before receiving data from a child node; triggering a second BSR based on receiving the data from the child node; and based on the data not being transmitted to the parent node until expiration of the timer, transmitting, to the parent node, a scheduling request (SR) for transmission of the second BSR, wherein, based on the data being transmitted to the parent node before the expiration of the timer, the timer is stopped and the second BSR is canceled.

A method and apparatus for reconstruction of a protocol data unit (PDU) for fast and reliable retransmission of a service data unit (SDU) after maximum retransmission is provided. Upon determining that a hybrid automatic repeat request (HARQ) retransmission of a first PDU including a specific SDU is unsuccessful, a wireless device constructs a second PDU including the first SDU which is prioritized to be included in the second PDU.

Reconstruction of data unit

A method and apparatus for determination of a maximum number of uplink retransmissions in a wireless communication system is provided. A wireless device receives, from a network, information related to a first retransmission number for a first logical channel and second retransmission number for a second logical channel, determines a retransmission number of a data unit among the first retransmission number and the second retransmission number, and transmits, to the network, information for the retransmission number of the data unit.

Determination of maximum number of uplink retransmissions

A method and apparatus for an indication of serving cell communication quality to a target cell during mobility in a wireless communication system is provided. A wireless device, which keeps communicating with a source node while initiating a mobility from the source node to a target node, transmits, to the target node, information related to a communication quality of the source node.

Indication of serving cell communication quality to target cell during mobility

A method and apparatus for lossless uplink data transmission of IAB network in a wireless communication system will be provided. A user plane (UP) of an integrated access and backhaul (IAB)-donor central unit (CU) in a wireless communication system receives, from a wireless device, uplink data through a source IAB-node. A UP of an IAB-donor CU receives, from the source IAB-node, at least one of a delivery status of the uplink data on the source IAB-node, wherein the wireless device handovers from the source IAB-node to a target IAB-node. A UP of an IAB-donor CU transmits, to a unit-control plane (CP) of the IAB-donor CU, a first message based on the at least one of the delivery status of the uplink data.

Method and apparatus for lossless uplink data transmission of IAB network in a wireless communication system

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Seoul, South Korea

Heejeong Cho