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：US20230422067A1

公开(公告)日：2023-12-28

申请号：US18467407

申请日：2023-09-14

Applicant: APPLE INC.

Inventor： Yongjun Kwak ,  Gang Xiong ,  Hong He ,  Yujian Zhang ,  Debdeep Chatterjee ,  Honglei Miao ,  Bharat Shrestha

IPC: H04W24/08 ,  H04L5/00

CPC classification number: H04W24/08 ,  H04L5/0053 ,  H04W76/28

Abstract: Technology for a user equipment (UE), operable for monitoring a physical downlink control channel (PDCCH) is disclosed. The UE can monitor a downlink (DL) control channel for DL control information (DCI) at a predetermined monitoring occasion, wherein the predetermined monitoring occasion has a periodicity of P slots or P symbols with an offset Os. The UE can monitor a downlink (DL) control channel for DL control information (DCI) at a predetermined monitoring occasion, wherein Os has an offset with respect to a first slot in subframe number zero (SFN #0). The UE can monitor a downlink (DL) control channel for DL control information (DCI) at a predetermined monitoring occasion, wherein P is a positive integer greater than zero.

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：US11770752B2

公开(公告)日：2023-09-26

申请号：US17959186

申请日：2022-10-03

Applicant: Apple Inc.

Inventor： Yujian Zhang ,  Qian Li ,  Youn Hyoung Heo ,  Sudeep K. Palat ,  Murali Narasimha

IPC: H04W40/22 ,  H04B7/15 ,  H04W28/02 ,  H04W40/30 ,  H04W74/08 ,  H04W72/20 ,  H04W84/04 ,  H04W88/08 ,  H04W92/20

CPC classification number: H04W40/22 ,  H04B7/15 ,  H04W28/0268 ,  H04W40/30 ,  H04W72/20 ,  H04W74/0833 ,  H04W28/0278 ,  H04W84/047 ,  H04W88/08 ,  H04W92/20

Abstract: Systems and methods of reducing control plane latency in a 5G IAB network are described. SRs transmitted between nodes indicate that a control plane PDU is to be transmitted. The SRs use periodic resources or OCCs reserved for control plane signaling and are initiated by an RRC message or RACH from the UE. The SRs are initiated if the LCD field in the MAC sub header of the RRC message indicates the CCCH or the DCCH logical channel. If the PDU is available after the original resource, a resource is used that is provided via another grant, which is periodically provided or automatically initiated due to failure to transmit on the original grant. The SR or RRC message can also specify a delayed timeslot for the grant. For contention-based procedures the RACH preamble is randomly selected or selected from among a set of RACH preambles assigned for RRC procedures.

公开(公告)号：US11729658B2

公开(公告)日：2023-08-15

申请号：US17315952

申请日：2021-05-10

Applicant: Apple Inc.

Inventor： Jaemin Han ,  Yujian Zhang ,  Sudeep Palat ,  Alexander Sirotkin

IPC: H04W28/02 ,  H04W28/04 ,  H04W92/12 ,  H04W88/08 ,  H04W80/02

CPC classification number: H04W28/0263 ,  H04W28/04 ,  H04W80/02 ,  H04W88/085 ,  H04W92/12

Abstract: Systems and methods of providing feedback when a specific PDU is successfully delivered or transmitted are described. The node hosting PDCP entity indicates triggering of a DDDS frame from the remote corresponding node. Rather than immediately triggering transmission of a DDDS frame, the node hosting PDCP entity indicates triggering based on successful delivery of a PDU having a specific SN, as long as in-sequence delivery or transmission of PDUs up to the specific SN was successful. The DDDS frame is transmitted once the corresponding node determines that the PDU having the SN was successfully delivered or transmitted. After reporting by the DDDS frame, the QoS flow associated with the PDUs is remapped from a source DRB to a target DRB.

公开(公告)号：US11706793B2

公开(公告)日：2023-07-18

申请号：US17743648

申请日：2022-05-13

Applicant: Apple Inc.

Inventor： Yujian Zhang ,  Youn Hyoung Heo

IPC: H04W72/56 ,  H04W76/18 ,  H04W76/10 ,  H04W76/19 ,  H04W76/15 ,  H04W36/00 ,  H04W4/90 ,  H04W28/08 ,  H04W72/51 ,  H04W72/52 ,  H04W72/542 ,  H04W24/10 ,  H04W48/06 ,  H04W74/00 ,  H04W48/08 ,  H04W48/18 ,  H04W28/02 ,  H04W48/12 ,  H04W8/00 ,  H04W52/34 ,  H04W56/00 ,  H04W72/0453 ,  H04B17/318 ,  H04W74/08 ,  H04W8/06 ,  H04W8/18 ,  H04W60/00 ,  H04W60/02 ,  H04J3/16 ,  H04L5/00 ,  H04W4/02 ,  H04W4/60 ,  H04W76/14 ,  H04W4/80 ,  H04W92/20 ,  H04W84/12 ,  H04W88/08 ,  H04W88/02 ,  H04W88/16 ,  H04B7/0413 ,  H04W8/04 ,  H04W88/18

CPC classification number: H04W72/56 ,  H04B17/318 ,  H04J3/1694 ,  H04L5/0007 ,  H04W4/02 ,  H04W4/023 ,  H04W4/60 ,  H04W4/80 ,  H04W4/90 ,  H04W8/005 ,  H04W8/06 ,  H04W8/183 ,  H04W24/10 ,  H04W28/0215 ,  H04W28/08 ,  H04W36/0069 ,  H04W48/06 ,  H04W48/08 ,  H04W48/12 ,  H04W48/18 ,  H04W52/346 ,  H04W56/001 ,  H04W56/002 ,  H04W60/00 ,  H04W60/02 ,  H04W72/0453 ,  H04W72/51 ,  H04W72/52 ,  H04W72/542 ,  H04W74/004 ,  H04W74/0833 ,  H04W76/10 ,  H04W76/14 ,  H04W76/15 ,  H04W76/18 ,  H04W76/19 ,  H04B7/0413 ,  H04L5/001 ,  H04L5/0098 ,  H04W8/04 ,  H04W84/12 ,  H04W88/02 ,  H04W88/08 ,  H04W88/16 ,  H04W88/18 ,  H04W92/20 ,  Y02D30/70

Abstract: Embodiments of a User Equipment (UE) to support dual-connectivity with a Master Evolved Node-B (MeNB) and a Secondary eNB (SeNB) are disclosed herein. The UE may receive downlink traffic packets from the MeNB and from the SeNB as part of a split data radio bearer (DRB). At least a portion of control functionality for the split DRB may be performed at each of the MeNB and the SeNB. The UE may receive an uplink eNB indicator for an uplink eNB to which the UE is to transmit uplink traffic packets as part of the split DRB. Based at least partly on the uplink eNB indicator, the UE may transmit uplink traffic packets to the uplink eNB as part of the split DRB. The uplink eNB may be selected from a group that includes the MeNB and the SeNB.

公开(公告)号：US11581990B2

公开(公告)日：2023-02-14

申请号：US17319252

申请日：2021-05-13

Applicant: Apple Inc.

Inventor： Gang Xiong ,  Pingping Zong ,  Yujian Zhang ,  Mo-Han Fong ,  Jong-Kae Fwu

IPC: H04L5/00 ,  H04W72/04 ,  H04W4/70 ,  H04W72/00 ,  H04L69/324 ,  H04W88/02

Abstract: Disclosed herein are apparatuses, systems, and methods using or implementing dynamic resource allocation (DRA) of resources for machine-type communication (MTC), as a secondary partition within a system bandwidth. Allocations outside the secondary partition are configured as a primary partition for other than MTC. Apparatuses may perform MTC communications within the secondary partition when DRA configuration information includes allocation information for the secondary partition and the apparatus is configured for MTC. Otherwise, if the apparatus is other than MTC, the apparatus may refrain from performing communications in the secondary partition. Other embodiments are described.

公开(公告)号：US11463938B2

公开(公告)日：2022-10-04

申请号：US17275108

申请日：2019-09-25

Applicant: Apple Inc.

Inventor： Yujian Zhang ,  Qian Li ,  Youn Hyoung Heo ,  Sudeep K. Palat ,  Murali Narasimha

IPC: H04W40/22 ,  H04B7/15 ,  H04W72/12 ,  H04W28/02 ,  H04W40/30 ,  H04W74/08 ,  H04W84/04 ,  H04W88/08 ,  H04W92/20

Abstract: Systems and methods of reducing control plane latency in a 5G IAB network are described. SRs transmitted between nodes indicate that a control plane PDU is to be transmitted. The SRs use periodic resources or OCCs reserved for control plane signaling and are initiated by an RRC message or RACH from the UE. The SRs are initiated if the LCID field in the MAC subheader of the RRC message indicates the CCCH or the DCCH logical channel. If the PDU is available after the original resource, a resource is used that is provided via another grant, which is periodically provided or automatically initiated due to failure to transmit on the original grant. The SR or RRC message can also specify a delayed timeslot for the grant. For contention-based procedures the RACH preamble is randomly selected or selected from among a set of RACH preambles assigned for RRC procedures.

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.