公开(公告)号：US20220159514A1

公开(公告)日：2022-05-19

申请号：US17438656

申请日：2020-04-30

Applicant: Apple Inc.

Inventor： Yujian Zhang ,  Junaid Ansari ,  Marta Martinez Tarradell

IPC: H04W28/12 ,  H04W24/08

Abstract: A process for execution by user equipment (UE) for activation or deactivation of a Radio Link Control (RLC) entity for Packet Data Convergence Protocol (PDCP) duplication includes identifying a set of RLC entities that are configured by a Radio Resource Control (RRC) for communication using PDCP. The process includes, for each RLC entity of the set of RLC entities: determining a network configured offset value; determining a channel condition value; and determining an RLC entity level value based on a combination of the network configured offset value and the channel condition value. The process includes comparing the RLC entity level value for each RLC entity to a threshold value; and based on comparing the RLC entity level value to the threshold value, selecting a subset of RLC entities for PDCP duplication; and activating or deactivating PDCP duplication for the selected subset of RLC entities.

公开(公告)号：US12200610B2

公开(公告)日：2025-01-14

申请号：US17442511

申请日：2020-03-27

Applicant: Apple Inc.

Inventor： Yujian Zhang ,  Junaid Ansari ,  Marta Martinez Tarradell

IPC: H04W48/16 ,  H04L1/08 ,  H04L1/22 ,  H04W28/06 ,  H04W28/10

Abstract: Methods, systems, apparatus, and computer programs, for selecting radio link control (RLC) entities to transmit packet data convergence protocol (PDCP) control protocol data unit (PDU). In one aspect, the method includes actions of accessing, by a device in a wireless communication system, data representing an index of RLC entities of a data radio bearer (DRB)/PDCP entity and RLC activation state information, the activation state information indicating whether one or more RLC entities of the DRB/PDCP entity in the index of RLC entities is activated or deactivated, selecting, by the device in the wireless communication system, a subset of the RLC entities of the DRB/PDCP entity based on an index position in the index and the activation state information for each of the RLC entities, and using the selected subset of RLC entities of the DRB/PDCP entity to transmit the PDCP Control PDU.

公开(公告)号：US11792302B2

公开(公告)日：2023-10-17

申请号：US17439311

申请日：2020-03-25

Applicant: Apple Inc.

Inventor： Yujian Zhang ,  Youn Hyoung Heo ,  Marta Martinez Tarradell ,  Sudeep Palat ,  Junaid Ansari

IPC: H04L29/06 ,  H04L69/04 ,  H04L1/00 ,  H04L69/22

CPC classification number: H04L69/04 ,  H04L1/0006 ,  H04L1/0026 ,  H04L69/22

Abstract: Disclosed are methods, systems, apparatus, and computer programs for compressing an Ethernet packet. In one aspect, a method involves mapping a portion of the Ethernet packet to a connection identity to compress the Ethernet packet. Additionally, the method involves encoding, in a user plane protocol stack layer, the connection identity in a data structure for transmission.

公开(公告)号：US20220174581A1

公开(公告)日：2022-06-02

申请号：US17442511

申请日：2020-03-27

Applicant: Apple Inc.

Inventor： Yujian Zhang ,  Junaid Ansari ,  Marta Martinez Tarradell

IPC: H04W48/16 ,  H04W28/10 ,  H04W28/06 ,  H04L1/08 ,  H04L1/22

Abstract: Methods, systems, apparatus, and computer programs, for selecting radio link control (RLC) entities to transmit packet data convergence protocol (PDCP) control protocol data unit (PDU). In one aspect, the method includes actions of accessing, by a device in a wireless communication system, data representing an index of RLC entities of a data radio bearer (DRB)/PDCP entity and RLC activation state information, the activation state information indicating whether one or more RLC entities of the DRB/PDCP entity in the index of RLC entities is activated or deactivated, selecting, by the device in the wireless communication system, a subset of the RLC entities of the DRB/PDCP entity based on an index position in the index and the activation state information for each of the RLC entities, and using the selected subset of RLC entities of the DRB/PDCP entity to transmit the PDCP Control PDU.

公开(公告)号：US20220159099A1

公开(公告)日：2022-05-19

申请号：US17439311

申请日：2020-03-25

Applicant: Apple Inc.

Inventor： Yujian Zhang ,  Youn Hyoung Heo ,  Marta Martinez Tarradell ,  Sudeep Palat ,  Junaid Ansari

IPC: H04L69/04 ,  H04L1/00 ,  H04L69/22

Abstract: Disclosed are methods, systems, apparatus, and computer programs for compressing an Ethernet packet. In one aspect, a method involves mapping a portion of the Ethernet packet to a connection identity to compress the Ethernet packet. Additionally, the method involves encoding, in a user plane protocol stack layer, the connection identity in a data structure for transmission.

公开(公告)号：US12041487B2

公开(公告)日：2024-07-16

申请号：US17438656

申请日：2020-04-30

Applicant: Apple Inc.

Inventor： Yujian Zhang ,  Junaid Ansari ,  Marta Martinez Tarradell

IPC: H04W28/02 ,  H04W24/08 ,  H04W28/12 ,  H04W36/00

CPC classification number: H04W28/12 ,  H04W24/08

Abstract: A process for execution by user equipment (UE) for activation or deactivation of a Radio Link Control (RLC) entity for Packet Data Convergence Protocol (PDCP) duplication includes identifying a set of RLC entities that are configured by a Radio Resource Control (RRC) for communication using PDCP. The process includes, for each RLC entity of the set of RLC entities: determining a network configured offset value; determining a channel condition value; and determining an RLC entity level value based on a combination of the network configured offset value and the channel condition value. The process includes comparing the RLC entity level value for each RLC entity to a threshold value; and based on comparing the RLC entity level value to the threshold value, selecting a subset of RLC entities for PDCP duplication; and activating or deactivating PDCP duplication for the selected subset of RLC entities.