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11.
公开(公告)号:US10673773B2
公开(公告)日:2020-06-02
申请号:US16057104
申请日:2018-08-07
Applicant: LG Electronics Inc.
Inventor: Seungjune Yi , Geumsan Jo
IPC: H04L12/863 , H04L12/801 , H04W80/02
Abstract: The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for handling state variables of a PDCP entity in wireless communication system, the method comprising: delivering an PDCP SDU associated with a first COUNT to upper layer and starting, by the PDCP entity, a reordering timer, when an out-of-order PDCP PDU with the first COUNT value is received from lower layer; updating a value of a first state variable to the first COUNT value+1, when the reordering timer starts; and when the reordering timer expires, updating, by the PDCP entity, a value of a second state variable based on a second COUNT value of a first PDCP SDU which has not been delivered to upper layers, among PDCP SDUs with COUNT values which are equal to or larger than the first state variable.
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12.
公开(公告)号:US20190394823A1
公开(公告)日:2019-12-26
申请号:US16447446
申请日:2019-06-20
Applicant: LG Electronics Inc.
Inventor: Geumsan Jo , Gyeongcheol Lee , Seungjune Yi
Abstract: A method for processing signals by a relay node in a wireless communication system is disclosed. The method comprises detecting a radio link failure (RLF) of a connection with a child node of the relay node; transmitting a message informing an occurrence of the RLF to a parent node of the relay node, wherein the message includes an identifier of the child node.
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公开(公告)号:US12069524B2
公开(公告)日:2024-08-20
申请号:US17616408
申请日:2020-07-22
Applicant: LG ELECTRONICS INC.
Inventor: Geumsan Jo , Seungjune Yi
IPC: H04W4/00 , H04W28/06 , H04W36/02 , H04W36/14 , H04W74/0833
CPC classification number: H04W36/023 , H04W28/06 , H04W36/14 , H04W74/0833
Abstract: 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.
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公开(公告)号:US20230041726A1
公开(公告)日:2023-02-09
申请号:US17788870
申请日:2021-01-13
Applicant: LG ELECTRONICS INC.
Inventor: Seungjune Yi , Geumsan Jo
IPC: H04W76/27
Abstract: 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.
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公开(公告)号:US20220248280A1
公开(公告)日:2022-08-04
申请号:US17622338
申请日:2020-10-20
Applicant: LG ELECTRONICS INC.
Inventor: Geumsan Jo , Sunghoon Jung , Sangwon Kim
Abstract: 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 initializing state variables for at least one radio bearer (RB) based on receiving a handover command from a source network; performing the handover procedure to a target network while maintaining the connection with the source network; based on detecting a handover failure to the target network, reverting back the state variables for the at respectively, and applying the first network configuration least one RB to the state variables used in the source network; and reporting information related to the handover failure to the source network.
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公开(公告)号:US11363662B2
公开(公告)日:2022-06-14
申请号:US17025235
申请日:2020-09-18
Applicant: LG ELECTRONICS INC.
Inventor: Geumsan Jo , Sunghoon Jung , Sangwon Kim
IPC: H04W76/18 , H04W36/00 , H04W12/08 , H04W76/19 , H04W12/041
Abstract: The present invention relates to a method for receiving packets by a user equipment (UE) in a wireless communication system. In particular, the method includes receiving a handover command including security information; establishing a connection with a second network; based on detecting a connection failure with the second network, deriving a security key for a first network based on the security information; performing a PDCP re-establishment for one or more radio bearers of the first network based on the security key for the first network; and reporting, to the first network, the connection failure with the second network.
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公开(公告)号:US11032740B2
公开(公告)日:2021-06-08
申请号:US16797641
申请日:2020-02-21
Applicant: LG Electronics Inc.
Inventor: Geumsan Jo , Seungjune Yi
Abstract: The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for performing a re-establishment of PDCP entity associated with UM RLC entity in wireless communication system, the method comprising: when a re-establishment of a Packet Data Convergence Protocol (PDCP) entity is triggered, stopping and resetting, by the PDCP entity, a reordering timer of the PDCP entity if the reordering timer of the PDCP entity is running; and delivering, by the PDCP entity, all stored PDCP Service Data Unit (SDU) to upper layers in ascending order of associated COUNT values.
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公开(公告)号:US11032189B2
公开(公告)日:2021-06-08
申请号:US16542249
申请日:2019-08-15
Applicant: LG ELECTRONICS INC.
Inventor: Geumsan Jo , Bokyung Byun , Seungjune Yi
IPC: H04L12/703 , H04W40/02 , H04W76/27
Abstract: A method for transmitting a packet by a Packet Data Convergence Protocol (PDCP) entity of a user equipment in a wireless communication system is disclosed. The method comprises delivering a packet to a first Radio Link Control (RLC) entity; and when a radio link failure (RLF) related to the first RLC entity is detected, retransmitting the packet through a second RLC entity if acknowledgement information of the packet is not received from the first RLC entity.
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公开(公告)号:US20210127295A1
公开(公告)日:2021-04-29
申请号:US16981923
申请日:2019-04-23
Applicant: LG ELECTRONICS INC.
Inventor: Geumsan Jo , Seungjune Yi
IPC: H04W28/06 , H04W28/02 , H04W80/02 , H04W80/08 , H04L12/823
Abstract: The present invention relates to a method for transmitting a packet by a Packet Data Convergence Protocol (PDCP) layer entity of a UE in a wireless communication system. In particular, the method includes submitting a packet periodically to a lower layer if a type of the packet is one of specific types, wherein, when a number of submitting the packet becomes a predetermined value, submitting the packet is stopped.
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公开(公告)号:US10575213B2
公开(公告)日:2020-02-25
申请号:US16100791
申请日:2018-08-10
Applicant: LG Electronics Inc.
Inventor: Geumsan Jo , Seungjune Yi
Abstract: The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for performing a re-establishment of PDCP entity associated with UM RLC entity in wireless communication system, the method comprising: when a re-establishment of a Packet Data Convergence Protocol (PDCP) entity is triggered, stopping and resetting, by the PDCP entity, a reordering timer of the PDCP entity if the reordering timer of the PDCP entity is running; and delivering, by the PDCP entity, all stored PDCP Service Data Unit (SDU) to upper layers in ascending order of associated COUNT values.
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