公开(公告)号：US10904800B2

公开(公告)日：2021-01-26

申请号：US16475851

申请日：2018-02-02

Applicant: APPLE INC.

Inventor： Sudeep Palat ,  Richard Burbidge ,  Yujian Zhang ,  Alexandre Saso Stojanovski ,  Jerome Parron

IPC: H04W28/24 ,  H04W76/27 ,  H04L5/00 ,  H04W28/02

Abstract: Disclosed are apparatuses for quality of service (QoS) flow to data radio bearer (DRB) mapping override bits. An apparatus of a user equipment (UE), includes one or more data storage devices, and one or more processors operably coupled to the one or more data storage devices. The one or more data storage devices are configured to store data corresponding to mapping of QoS flows to data radio bearers. The one or more processors are configured to map one or more QoS flows to a DRB in an uplink (UL) responsive to receipt, by the UE from a cellular base station, of a user plane packet in a downlink (DL) through the DRB if an override bit of the user plane packet indicates that reflective mapping should apply.

公开(公告)号：US20200351702A1

公开(公告)日：2020-11-05

申请号：US16932743

申请日：2020-07-18

Applicant: Apple Inc.

Inventor： Alexandre Saso Stojanovski ,  Jerome Parron ,  Sudeep K. Palat ,  Yujian Zhang

IPC: H04W28/02 ,  H04L29/06 ,  H04W28/06 ,  H04W76/20 ,  H04W76/10 ,  H04L29/08

Abstract: Systems and methods of segregating a SDF of a PDU session are described. The UE transmits a NAS message to the network. The NAS message indicates the SDF, the desired QoS, and a segregation indication that requests that the network establish a separate QoS flow for the SDF even if an existing QoS flow is able to support the specific QoS. The SF decides whether or not to establish the separate QoS flow and updates filters in the UPF as well as providing a response to the UE containing a similar indication. The UE modifies resources related to the PDU session based on the response. The QoS is indicated as a 5QI and GBR or as a QFI of an existing QoS Flow on which the SDF is to be added if the separate QoS is not established. The QFI is in an unencrypted SDAP header of the NAS message.

公开(公告)号：US12262262B2

公开(公告)日：2025-03-25

申请号：US17968044

申请日：2022-10-18

Applicant: Apple Inc.

Inventor： Candy Yiu ,  Yujian Zhang ,  Yi Guo ,  Jaemin Han

IPC: H04W36/00 ,  H04W12/037 ,  H04W12/0431 ,  H04W28/06 ,  H04W36/18 ,  H04W36/28 ,  H04W76/15 ,  H04W76/30 ,  H04W74/0833

Abstract: Techniques to configure a user equipment (UE) for a multi-connectivity handover with a source base station (SBS) and a target base station (TBS) include encoding a measurement report for transmission to the SBS. The measurement report is triggered based on a measurement event configured by the SBS. Radio resource control (RRC) signaling from the SBS is decoded, the RRC signaling including a handover command in response to the measurement report. The handover command includes an indication for multi-connectivity support by the SBS and the TBS during the handover. A first protocol stack associated with the SBS and a second protocol stack associated with the TBS are configured at the UE. A packet data convergence protocol (PDCP) protocol data unit (PDU) received at the UE during the handover is processed using the first protocol stack or the second protocol stack.

公开(公告)号：US12133182B2

公开(公告)日：2024-10-29

申请号：US18067340

申请日：2022-12-16

Applicant: APPLE INC.

Inventor： Kathiravetpillai Sivanesan ,  Ali T. Koc ,  Satish C. Jha ,  Rath Vannithamby ,  Yujian Zhang

IPC: H04W88/02 ,  H04W52/14 ,  H04W52/24 ,  H04W52/34 ,  H04W52/36 ,  H04W88/06 ,  H04W84/04

CPC classification number: H04W52/365 ,  H04W52/146 ,  H04W52/247 ,  H04W52/248 ,  H04W52/34 ,  H04W88/06 ,  H04W84/042 ,  Y02D30/70

Abstract: Embodiments described herein relate generally to a communication between a user equipment (“UE”) and a plurality of evolved Node Bs (“eNBs”). A UE may be adapted to operate in a dual connected mode on respective wireless cells provided by first and second eNBs. The UE may be adapted to estimate respective power headroom (“PHR”) values associated with simultaneous operation on the first and second wireless cells. The UE may cause the first and second PHR estimates to be transmitted to both the first and second eNBs. The first and second eNBs may use these estimates to compute respective uplink transmission powers for the UE. Other embodiments may be described and/or claimed.

公开(公告)号：US11985618B2

公开(公告)日：2024-05-14

申请号：US17420127

申请日：2020-01-08

Applicant: Apple Inc.

Inventor： Murali Narasimha ,  Youn Hyoung Heo ,  Yujian Zhang

IPC: H04W56/00 ,  H04B7/185 ,  H04W48/10 ,  H04W74/0833

CPC classification number: H04W56/0045 ,  H04B7/18513 ,  H04W48/10 ,  H04W56/0065 ,  H04W74/0833

Abstract: Methods and apparatus are described for carrying out timing adjustments in a wireless communications network. The approach includes a user equipment (UE) that includes processor circuitry and a radio front end circuitry. The processor circuitry is configured to obtain a timing advance value for the wireless communication with a satellite base station, and to determine a transmission time for transmission of a random access channel (RACH) preamble based on the timing advance value. The radio front end circuitry transmits the random access preamble at the transmission time. Finally, the processor circuitry is further configured to receive a response to the transmitted random access preamble.

公开(公告)号：US11979768B2

公开(公告)日：2024-05-07

申请号：US17935097

申请日：2022-09-24

Applicant: APPLE INC.

Inventor： Youn Hyoung Heo ,  Yujian Zhang ,  Jong-Kae Fwu

IPC: H04W28/02 ,  H04B17/318 ,  H04J3/16 ,  H04J11/00 ,  H04L1/1812 ,  H04L1/1829 ,  H04L1/1867 ,  H04L5/00 ,  H04L5/14 ,  H04L41/069 ,  H04L41/50 ,  H04L43/16 ,  H04L65/60 ,  H04L65/75 ,  H04L67/10 ,  H04W4/70 ,  H04W8/08 ,  H04W24/02 ,  H04W24/08 ,  H04W24/10 ,  H04W28/16 ,  H04W36/00 ,  H04W36/14 ,  H04W36/22 ,  H04W40/00 ,  H04W40/24 ,  H04W48/16 ,  H04W48/20 ,  H04W52/02 ,  H04W52/04 ,  H04W52/14 ,  H04W72/02 ,  H04W72/044 ,  H04W72/0453 ,  H04W72/20 ,  H04W72/21 ,  H04W72/23 ,  H04W72/52 ,  H04W72/541 ,  H04W74/00 ,  H04W76/12 ,  H04W76/15 ,  H04W76/16 ,  H04W76/23 ,  H04W76/27 ,  H04W76/28 ,  H04W76/30 ,  H04W88/02 ,  H04W72/30 ,  H04W80/10 ,  H04W84/04 ,  H04W84/12 ,  H04W88/06 ,  H04W88/08 ,  H04W88/12 ,  H04W88/14 ,  H04W88/16 ,  H04W88/18

CPC classification number: H04W28/0221 ,  H04B17/318 ,  H04J3/1694 ,  H04J11/00 ,  H04J11/0086 ,  H04L1/1812 ,  H04L1/1861 ,  H04L1/1864 ,  H04L1/1893 ,  H04L5/0035 ,  H04L5/0055 ,  H04L5/0057 ,  H04L5/0073 ,  H04L5/14 ,  H04L41/069 ,  H04L41/5032 ,  H04L43/16 ,  H04L65/60 ,  H04L65/762 ,  H04L67/10 ,  H04W4/70 ,  H04W8/08 ,  H04W24/02 ,  H04W24/08 ,  H04W24/10 ,  H04W28/0205 ,  H04W28/0215 ,  H04W28/0252 ,  H04W28/0268 ,  H04W28/16 ,  H04W36/0061 ,  H04W36/0066 ,  H04W36/0083 ,  H04W36/0085 ,  H04W36/0088 ,  H04W36/14 ,  H04W36/22 ,  H04W40/005 ,  H04W40/246 ,  H04W48/16 ,  H04W48/20 ,  H04W52/0209 ,  H04W52/0212 ,  H04W52/0235 ,  H04W52/04 ,  H04W52/14 ,  H04W72/02 ,  H04W72/044 ,  H04W72/0453 ,  H04W72/20 ,  H04W72/21 ,  H04W72/23 ,  H04W72/52 ,  H04W72/541 ,  H04W74/002 ,  H04W74/004 ,  H04W76/12 ,  H04W76/15 ,  H04W76/16 ,  H04W76/23 ,  H04W76/27 ,  H04W76/28 ,  H04W76/30 ,  H04W88/02 ,  H04L5/001 ,  H04W72/30 ,  H04W80/10 ,  H04W84/042 ,  H04W84/12 ,  H04W88/06 ,  H04W88/08 ,  H04W88/12 ,  H04W88/14 ,  H04W88/16 ,  H04W88/18 ,  Y02D30/70

Abstract: Embodiments of a system and method for providing DRX enhancements in LTE systems are generally described herein. In some embodiments, a system control module is provided for controlling communications via a communications interface. A processor is coupled to the system control module and is arranged to implement an inactivity timer and an on-duration timer for determining an active time for monitoring subframes on the physical downlink control channel for control signals, the processor further monitoring subframes after the active time.

公开(公告)号：US11950146B2

公开(公告)日：2024-04-02

申请号：US17274311

申请日：2019-09-23

Applicant: Apple Inc.

Inventor： Candy Yiu ,  Yujian Zhang ,  Yi Guo ,  Jaemin Han

IPC: H04W36/00 ,  H04W12/037 ,  H04W12/0431 ,  H04W28/06 ,  H04W76/30

CPC classification number: H04W36/0069 ,  H04W12/037 ,  H04W12/0431 ,  H04W28/06 ,  H04W36/0058 ,  H04W36/00837 ,  H04W76/30

Abstract: Techniques to configure a user equipment (UE) for a multi-connectivity handover with a source base station (SBS) and a target base station (TBS) include encoding a measurement report for transmission to the SBS. The measurement report is triggered based on a measurement event configured by the SBS. Radio resource control (RRC) signaling from the SBS is decoded, the RRC signaling including a handover command in response to the measurement report. The handover command includes an indication for multi-connectivity support by the SBS and the TBS during the handover. A first protocol stack associated with the SBS and a second protocol stack associated with the TBS are configured at the UE. A packet data convergence protocol (PDCP) protocol data unit (PDU) received at the UE during the handover is processed using the first protocol stack or the second protocol stack.

公开(公告)号：US11805432B2

公开(公告)日：2023-10-31

申请号：US17643538

申请日：2021-12-09

Applicant: APPLE INC.

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

IPC: H04W24/08 ,  H04L5/00 ,  H04W76/28 ,  H04W72/12 ,  H04W84/04 ,  H04W88/02

CPC classification number: H04W24/08 ,  H04L5/0053 ,  H04L5/0048 ,  H04L5/0091 ,  H04W72/12 ,  H04W76/28 ,  H04W84/042 ,  H04W88/02

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：US11778529B2

公开(公告)日：2023-10-03

申请号：US17288394

申请日：2019-10-24

Applicant: Apple Inc.

Inventor： Candy Yiu ,  Yujian Zhang ,  Yi Guo ,  Sudeep Palat

IPC: H04W4/00 ,  H04W36/02 ,  H04W36/00 ,  H04W12/037 ,  H04L69/22 ,  H04W12/10

CPC classification number: H04W36/023 ,  H04L69/22 ,  H04W12/037 ,  H04W12/10 ,  H04W36/0069 ,  H04W36/0072

Abstract: Systems, methods, and devices are provided to: perform packet data convergence protocol (PDCP) deciphering of the packets to store deciphered packets in a common buffer; perform PDCP reordering of the deciphered packets in the common buffer to generated a stream or reordered packets; perform robust header compression (ROHC) decompression on the stream of reordered packets; and determine, based on a packet indication, to reset the ROHC decompression, wherein the packet indication comprises a single bit in a PDCP header set to indicate a start of ROHC reset based on a path switch during a handover from a source cell to a target cell.

公开(公告)号：US11765729B2

公开(公告)日：2023-09-19

申请号：US16412299

申请日：2019-05-14

Applicant: APPLE INC.

Inventor： Seunghee Han ,  Youn Hyoung Heo ,  Yujian Zhang ,  Hong He

IPC: H04W72/21 ,  H04W52/14 ,  H04W52/28 ,  H04W52/36 ,  H04W52/34 ,  H04W72/566 ,  H04W16/32 ,  H04W52/32 ,  H04L1/1867 ,  H04L5/00

CPC classification number: H04W72/21 ,  H04W16/32 ,  H04W52/146 ,  H04W52/281 ,  H04W52/346 ,  H04W52/367 ,  H04W72/569 ,  H04L1/1887 ,  H04L5/0055 ,  H04W52/325

Abstract: Technology for dual connectivity is disclosed. A user equipment (UE) can identify a first physical channel that includes a first uplink control information (UCI) and a second physical channel that includes a second UCI. The UE can select a priority level for the first physical channel and a priority level for the second physical channel. The UE can apply power scaling to a first physical channel transmission or a second physical channel transmission if a total transmit power of the UE would exceed a specific value during a period of time. The UE can scale a transmit power for the second physical channel if the priority level for the first physical channel is higher than the priority level for the second physical channel depending on a type of first UCI and a type of second UCI.