公开(公告)号：US20240014939A1

公开(公告)日：2024-01-11

申请号：US18474439

申请日：2023-09-26

Applicant: Apple Inc.

Inventor： Sarma V. VANGALA ,  Alexander SIROTKIN ,  Dawei ZHANG ,  Fangli XU ,  Haijing HU ,  Naveen Kumar R. PALLE VENKATA ,  Pavan NUGGEHALLI ,  Ralf ROSSBACH ,  Sethuraman GURUMOORTHY ,  Yuqin CHEN ,  Zhibin WU

IPC: H04L1/1607 ,  H04L47/34

CPC classification number: H04L1/1635 ,  H04L47/34

Abstract: A user equipment (UE) configured to receive a first cumulative acknowledgement (ACK) from a protocol stack of the UE at a first time, store the first cumulative ACK in a queue, receive a second cumulative ACK from the protocol stack at a second time, wherein the second time occurs after the first time, store the second cumulative ACK in the queue, discard the first cumulative ACK from the queue based on the second cumulative ACK being received after the first cumulative ACK and encapsulate the second cumulative ACK to form a radio link control (RLC) packet data unit (PDU) that is to be transmitted over the air.

公开(公告)号：US20220103973A1

公开(公告)日：2022-03-31

申请号：US17426953

申请日：2020-02-16

Applicant: Apple Inc.

Inventor： Alexander SIROTKIN ,  Yi GUO

IPC: H04W4/029

Abstract: An approach is described for a method for a radio access node (RAN) node in a fifth generation (5G) wireless communication or a new radio (NR) system that includes the following steps. The method includes generating a request for location information of a user equipment (UE). The method further includes transmitting the request to an access and mobility function (AMF). The method further includes receiving a response from the AMF, wherein the response comprises the location information of the UE.

公开(公告)号：US20220038941A1

公开(公告)日：2022-02-03

申请号：US17276468

申请日：2019-09-25

Applicant: Apple Inc.

Inventor： Jaemin HAN ,  Yujian ZHANG ,  Alexander SIROTKIN ,  Sudeep K. PALAT

IPC: H04W28/02 ,  H04W76/12 ,  H04W76/15

Abstract: Systems and methods of providing uplink in-order packet delivery of a QoS flow offloaded in a 5G network are described. An uplink forwarding tunnel is established between a source and target node after a determination is made to offload a QoS flow of a UE to the target node. The source node receives a SDAP PDU from the UE that contains an end marker and, in response, sends a GTP-U end marker packet to the target node via the uplink forwarding tunnel. The target node buffer packets associated with the QoS flow received from the UE after establishment of the uplink forwarding tunnel until the GTP-U end marker packet is received from the target node via the uplink forwarding tunnel and, in response, sends the buffered packets to the 5GC.

公开(公告)号：US20220007454A1

公开(公告)日：2022-01-06

申请号：US17309161

申请日：2019-10-30

Applicant: Apple Inc.

Inventor： Jaemin HAN ,  Yi GAO ,  Alexander SIROTKIN

IPC: H04W76/27 ,  H04W12/106 ,  H04W48/20 ,  H04W76/19 ,  H04W36/00

Abstract: An apparatus of a next generation NodeB (gNB) comprises one or more baseband processors to process a radio resource control (RRC) resume request (RRCResumeRequest) from a user equipment (UE) in an inactive state (RRC_INACTIVE), and to send a UE context request (Retrieve UE Context Request) to a last serving gNB, wherein the UE context request includes a physical cell identifier (PCI) and cell radio network temporary identifier (C-RNTI) of the gNB. The apparatus can include a memory to store the RRC resume request at the gNB and the UE context request at the last serving gNB.

公开(公告)号：US20210211928A1

公开(公告)日：2021-07-08

申请号：US17274116

申请日：2019-09-05

Applicant: Apple Inc.

Inventor： Murali NARASIMHA ,  Jaemin HAN ,  Candy YIU ,  Alexander SIROTKIN

IPC: H04W28/02 ,  H04W28/08 ,  H04W88/14

Abstract: Provided herein is an apparatus and a method for congestion handling in RAN. The disclosure provides an apparatus for a relay node in a RAN including the relay node and a donor node providing an interface to a core network and a backhaul link to the relay node. The apparatus includes a RF interface to receive and transmit downlink data for one or more UEs or UE bearers; and a processing circuitry coupled with the RF interface. The processing circuitry is to determine a downlink congestion occurs at the relay node; and generate a downlink congestion indication to identify a UE or a UE bearer or a backhaul RLC channel affected by the downlink congestion. The RF interface is to transmit the downlink congestion indication to the donor node. In addition to the downlink congestion handling, the relay node can also be to handle uplink congestion in a similar way.

公开(公告)号：US20210176802A1

公开(公告)日：2021-06-10

申请号：US17250568

申请日：2019-08-06

Applicant: Apple Inc.

Inventor： Alexander SIROTKIN ,  Jaemin HAN ,  Feng YANG

IPC: H04W76/12 ,  H04W76/22 ,  H04W76/27 ,  H04W36/00 ,  H04L1/18

Abstract: An apparatus of a next generation NodeB (gNB) comprises one or more baseband processors to interconnect a gNB Central Unit control-plane entity (gNB-CU-CP) with a gNB Central Unit user-plane entity (gNB-CU-UP) via an E1 control plane interface and a gNB Distributed Unit (gNB-DU) via an F1 control plane interface. Rather than relying on multiple class-1 procedures initiated by gNB-CU-CP toward gNB-CU-UP and gNB-DU, the one or more baseband processors are configured to establish or modify a bearer context and to communicate data transport tunneling and/or packet data convergence protocol (PDCP) preservation status information for a specific user equipment (UE), utilizing the direct F1 user plane interface between gNB-DU and gNB-CU-UP to avoid relaying delay. The gNB can include a memory to store the bearer context and data transport tunneling information.

公开(公告)号：US20200252997A1

公开(公告)日：2020-08-06

申请号：US16637478

申请日：2018-07-17

Applicant: Apple Inc.

Inventor： Alexander SIROTKIN ,  Candy YIU ,  Yang TANG ,  Youn Hyoung HEO ,  Jaemin HAN ,  Jie CUI

IPC: H04W88/10 ,  H04W24/10 ,  H04W36/00 ,  H04L1/00 ,  H04L5/00

Abstract: Embodiments of a generation Node-B (gNB), User Equipment (UE) and methods to configure measurement gaps are generally described herein. A serving cell gNB may transmit, to a neighbor cell gNB, a channel state information reference signal (CSI-RS) status request message and may receive, from the neighbor cell gNB 105, a CSI-RS status update message. The serving cell gNB may determine, based on timing information in the CSI-RS status update message, a measurement gap to be reserved for transmission of CSI-RS from the neighbor cell gNB to a UE that is served by the serving cell gNB. The serving cell gNB may transmit, to the UE, control signaling that indicates the measurement gap. The serving cell gNB may receive, from the UE, a measurement report that indicates a signal quality measurement based on the CSI-RS from the neighbor cell gNB.

公开(公告)号：US20250016647A1

公开(公告)日：2025-01-09

申请号：US18710675

申请日：2021-11-25

Applicant: Apple Inc.

Inventor： Fangli XU ,  Alexander SIROTKIN ,  Dawei ZHANG ,  Haijing HU ,  Naveen Kumar R PALLE VENKATA ,  Pavan NUGGEHALLI ,  Ralf ROSSBACH ,  Sarma V VANGALA ,  Sethuraman GURUMOORTHY ,  Srirang A LOVLEKAR ,  Yuqin CHEN ,  Zhibin WU

IPC: H04W36/36 ,  H04W36/00 ,  H04W72/11 ,  H04W74/0833

Abstract: A user equipment (UE) is configured to receive a handover command from a source cell, wherein the UE is configured to exchange data with the source cell after the reception of the handover command, perform downlink synchronization acquisition with a target cell while the UE is configured to exchange data with the source cell and transmit an uplink signal to the target cell, wherein the UE stops exchanging data with the source cell after transmitting the uplink signal to the target cell.

公开(公告)号：US20250016633A1

公开(公告)日：2025-01-09

申请号：US18710694

申请日：2021-11-26

Applicant: Apple Inc.

Inventor： Naveen Kumar R PALLE VENKATA ,  Alexander SIROTKIN ,  Fangli XU ,  Haijing HU ,  Pavan NUGGEHALLI ,  Ralf ROSSBACH ,  Sarma V VANGALA ,  Sethuraman GURUMOORTHY ,  Yuqin CHEN ,  Zhibin WU

IPC: H04W36/00 ,  H04W72/231 ,  H04W76/30

Abstract: A user equipment (UE) is configured to activate a simultaneous communication functionality with a first cell and a second cell, wherein the first cell is configured as a serving cell and the second cell is configured as an assisting cell, determine that a serving cell switch is to be performed, wherein the serving cell switch comprises the second cell being reconfigured as the assisting cell and the first cell being reconfigured as the assisting cell, receive, after the serving cell switch, a message from the second cell indicating that the simultaneous communication functionality is to be deactivated and release the first cell in response to the message.

公开(公告)号：US20240418819A1

公开(公告)日：2024-12-19

申请号：US18700500

申请日：2022-10-12

Applicant: Apple Inc.

Inventor： Alexander SIROTKIN ,  Zhibin WU ,  Haijing HU ,  Seyed Ali Akbar FAKOORIAN ,  Sudeep MANITHARA VAMANAN

IPC: G01S5/02

Abstract: Disclosed are methods, systems, and computer-readable medium to perform operations including: receiving a plurality of position estimates for a user device; providing the plurality of position estimates as input to a trained machine learning model; and outputting a hybrid position of the user device.