Lg Electronics Inc.

Geumsan Jo

Seungjune Yi

Sunyoung Lee

Sunghoon Jung

Heejeong Cho

Bokyung Byun

Hongsuk Kim

Gyeongcheol Lee

Hanul Lee

Youngdae Lee

Jaewook Lee

Sangwon Kim

Jongwoo Hong

Hyunjung Choe

Oanyong Lee

The present disclosure relates to a method of performing data transmission by a user equipment (UE) in a wireless communication system. Especially, the method includes the steps of receiving a message indicating a change of a Radio resource control (RRC) state from a RRC CONNECTED state to a RRC INACTIVE state, wherein the message includes information related to second resources and a threshold; and if a time gap between a current time and a first resource is smaller than the threshold, performing the data transmission in the RRC INACTIVE state based on the first resource with ignoring at least one of the second resources which is located earlier than the first resource.

Method and apparatus for performing small data transmission in RRC inactive state 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 transmitting data units by a Radio Link Control (RLC) entity of a user equipment (UE) in a Radio Resource Control (RRC) INACTIVE state in a wireless communication system. Especially, the method includes the steps of transmitting at least one first data unit without the poll in the RRC INACTIVE state to a peer RLC entity; based on a number of the at least one first data unit without the poll being equal to or greater than a threshold value, shifting to a RRC CONNECTED state; transmitting a second data unit with the poll in the RRC CONNECTED state to the peer RLC entity; and receiving a status report for the at least one first data unit without the poll and the second data unit with the poll from the peer RLC entity.

Method and apparatus for performing data transmission without sequence number in wireless communication system

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

The present invention relates to a method of transmitting a signal by a user equipment (UE) in a wireless communication system. Especially, the method includes the steps of receiving a handover command containing configurations for a second network, from a first network; performing a random access procedure to the second network; re-establishing a packet data convergence protocol (PDCP) entity associated with a signaling radio bearer (SRB) based on the configurations for the second network, after a random access procedure to the second network successes; transmitting a radio resource control (RRC) message to the second network using the re-established PDCP entity.

Method and apparatus for applying target network configuration by user equipment in wireless communication system

The present invention relates to a method of transmitting a data unit by a packet data convergence protocol (PDCP) entity of a user equipment (UE) in a wireless communication system. Especially, the PDCP entity is associated with at least two radio link control (RLC) entities and is configured with PDCP duplication. Further, the method includes the steps of receiving a PDCP service data unit (SDU) from an upper layer; constructing a PDCP protocol data unit (PDU) using the PDCP SDU; duplicating the PDCP PDU based on the PDCP duplication being activated; and transmitting the PDCP PDU and at least one duplicated PDCP PDU to the at least two RLC entity, wherein, based on the PDCP duplication being activated, constructing the PDCP PDU comprises compressing the PDCP SDU.

Method and apparatus for transmitting data unit based on PDCP duplication state in wireless communication system

The present invention relates to a method for transmitting signals by a transmission end in a wireless communication system. In particular, the method includes the steps of: configuring one Packet Data Convergence Protocol (PDCP) entity, at least one first RLC entity related to the one PDCP entity and at least one second RLC entity related to the one PDCP entity; determining whether a service data unit (SDU) to be transmitted is a special SDU or not; if the SDU is the special SDU, transmitting the SDU to the at least one first RLC entity; and if the SDU is not the special SDU, transmitting the SDU to the at least one second RLC entity.

Method and apparatus for transmitting signals by prioritizing RLC entities in wireless communication system

The present invention relates to a method of transmitting packets by a user equipment (UE) in a wireless communication system, wherein the UE is related to a first network and a second network. In particular, the method includes the steps of: transmitting packets containing compressed header information to the first network; receiving, from the first network, a handover command to connect with the second network; and transmitting packets containing a full header information to at least one of the first network or the second network.

Method and apparatus for transmitting packets based on receiving a handover command in wireless communication system

The present invention relates to a method for processing data units by a Packet Data Convergence Protocol (PDCP) entity of a user equipment (UE) in a wireless communication system. In particular, the method includes the steps of: receiving a first data unit having a specific count value from a lower layer; and discarding the first data unit, when there is a second data unit having the specific count value which was received before the first data unit and for which an integrity verification was successful.

Method and apparatus for processing data units in wireless communication system

The present invention relates to a method of transmitting a scheduling request (SR) by a user equipment (UE) in a wireless communication system, wherein the UE is connected to a first network. In particular, the method includes the steps of: performing a random access procedure with a second network; and based on the random access procedure being successfully performed, discarding packets which are stored in a buffer for transmission to the first network.

Method and apparatus for preventing data transmission to a source network after receiving an uplink grant from a target network in a wireless communication system

The present invention relates to a method of generating a Medium Access Control Protocol Data Unit (MAC PDU) by a UE in a wireless communication system. In particular, the method includes the steps of: receiving configuration information related to multiple logical channels; receiving information related to multiple configured grants; generating the MAC PDU by performing a Logical Channel Prioritization (LCP) for the multiple logical channels based on a PBR value related to an activated grant; and transmitting the MAC PDU to a network.

Method and apparatus for generating medium access control protocol data unit based on multiple configured grants in wireless communication system

The present invention relates to a method of processing a data unit by a Service Data Adaptation Protocol (SDAP) entity of a user equipment (UE) in a wireless communication system. In particular, the method includes the steps of: receiving a SDAP Service Data Unit (SDU) from an upper layer; generating a SDAP protocol data unit (PDU) including a SDAP header and the SDAP SDU; and submitting the SDAP PDU to a lower layer, wherein the SDAP header includes a Quality of Service (QoS) Flow Identifier (QFI) field, wherein, based on that the QFI field has a specific value, the SDAP header further includes an extended QFI field having a value corresponding to the SDAP SDU.

Method and apparatus for processing data unit in wireless communication system

A method and apparatus for conditional supplementary link activation and transmission in a wireless communication system is provided. A wireless device configures a primary transmission link and at least one supplementary transmission link. The primary transmission link is activated. The wireless device configures a first condition and a second condition. The wireless device determines that the first condition is met upon which the at least one supplementary transmission link is activated. The wireless device performs transmission by using at least one of activated transmission links based on whether the second condition is met.

Growing community of inventors

Seoul, South Korea

Geumsan Jo