公开(公告)号：US12256264B2

公开(公告)日：2025-03-18

申请号：US18423754

申请日：2024-01-26

Applicant: APPLE INC.

Inventor： Murali Narasimha ,  Bharat Shrestha

IPC: H04W28/02 ,  H04W72/20 ,  H04W72/23 ,  H04W92/20

Abstract: Technology for an Integrated Access and Backhaul (IAB) node in an IAB network is disclosed. The IAB node can decode, at a distributed unit (DU) of the IAB node, a first resource request received from one of a user equipment (UE) or a child IAB node, wherein the first resource request is associated with the UE. The IAB node can encode, at a mobile terminal (MT) of the IAB node, a second resource request for transmission to the parent IAB node or the IAB donor triggered by receipt of the first resource request, wherein the second resource request is transmitted prior to a receipt of a protocol data unit (PDU) at the DU of the IAB node.

公开(公告)号：US20240188073A1

公开(公告)日：2024-06-06

申请号：US18524050

申请日：2023-11-30

Applicant: Apple Inc.

Inventor： Neha Goel ,  Ralph Hasholzner ,  Lakshmi Iyer ,  Mikhail Wilhelm ,  Murali Narasimha ,  Arjun Bharadwaj

IPC: H04W72/1268 ,  H04W28/02

CPC classification number: H04W72/1268 ,  H04W28/0278 ,  H04W88/02

Abstract: An application may provide prebooking information for multiple packet streams to a baseband processor. The prebooking information may include some or all of a first packet stream and information describing one or more additional packet streams. The baseband processor may generate a buffer status report (BSR) corresponding to multiple packet streams to the extent that the data for the packet streams are to arrive at the baseband processor prior to the a preconfigured duration (e.g., the baseband processor receiving a dynamic grant (DG) from the base station). In this sense, application data may be prebooked, by the baseband processor and/or base station, before actually arriving at the baseband processor. These and many other examples and techniques described herein, including the use of dummy packets for a DG, managing DGs based on dummy packets, and more.

公开(公告)号：US11924675B2

公开(公告)日：2024-03-05

申请号：US17285386

申请日：2019-10-16

Applicant: APPLE INC.

Inventor： Murali Narasimha ,  Bharat Shrestha

IPC: H04W28/02 ,  H04W72/20 ,  H04W72/23 ,  H04W92/20

CPC classification number: H04W28/0278 ,  H04W72/20 ,  H04W72/23 ,  H04W92/20

Abstract: Technology for an Integrated Access and Backhaul (IAB) node in an IAB network is disclosed. The IAB node can decode, at a distributed unit (DU) of the IAB node, a first resource request received from one of a user equipment (UE) or a child IAB node, wherein the first resource request is associated with the UE. The IAB node can encode, at a mobile terminal (MT) of the IAB node, a second resource request for transmission to the parent IAB node or the IAB donor triggered by receipt of the first resource request, wherein the second resource request is transmitted prior to a receipt of a protocol data unit (PDU) at the DU of the IAB node.

公开(公告)号：US20240008136A1

公开(公告)日：2024-01-04

申请号：US17853823

申请日：2022-06-29

Applicant: Apple Inc.

Inventor： Neha Goel ,  Murali Narasimha ,  Sreevalsan Vallath

IPC: H04W76/28 ,  H04W72/14 ,  H04W72/12

CPC classification number: H04W76/28 ,  H04W72/1268 ,  H04W72/14

Abstract: A processor determines that a UE operates in a DRX cycle including a DRX-on duration followed by a DRX-sleep duration. The processor configures a plurality of periodic uplink CG occasions within the DRX cycle. Each uplink CG occasion supports uplink transmission of a predefined size. The processor reads a data buffer to determine a size of accumulated data. At a given uplink CG occasion, the processor compares the size of accumulated data with an upper threshold data size and a lower threshold data size. Responsive to a first comparison result, the processor transmits the accumulated data over one or more uplink CG occasions starting from the given uplink CG occasion. Responsive to a second comparison result, the processor transmits a BSR at the given uplink CG occasion. Responsive to a third comparison result, the processor transmits neither the accumulated data nor the BSR at the given uplink CG occasion.

公开(公告)号：US20230180212A1

公开(公告)日：2023-06-08

申请号：US17593680

申请日：2021-01-14

Applicant: APPLE INC.

Inventor： Sarma V. Vangala ,  Fangli Xu ,  Haijing Hu ,  Murali Narasimha ,  Naveen Kumar R Palle Venkata ,  Ralf Rossbach ,  Sethuraman Gurumoorthy ,  Sree Ram Kodali ,  Yuqin Chen ,  Zhibin Wu

IPC: H04W72/1263 ,  H04W28/02

CPC classification number: H04W72/1263 ,  H04W28/0278

Abstract: Systems and methods for enhancing the use of pre-emptive buffer status reports (pre-BSRs) in wireless communications systems implementing integrated access and backhaul (IAB) networks are disclosed herein. In some cases, an IAB node can re-classify the LCGs of one or more incoming data flows according to such pre-BSR usage. This may involve the use of and extended medium access control (MAC) control element (MAC CE) having more LCG bits than previously contemplated, having sub-LCG bits, or that includes further LCG classification information bits. Other embodiments use a priority index for LCGs in an extended pre-BSR MAC CE. The priority index may include one or more of a priority field, a prioritized bit rate (PBR), and/or a bucket size duration (BSD) that is reported to an IAB donor. Other embodiments leverage the provision of additional grants from an IAB node to a child IAB node to reduce unwanted pre-BSR effects.

公开(公告)号：US20220086786A1

公开(公告)日：2022-03-17

申请号：US17420127

申请日：2020-01-08

Applicant: Apple Inc.

Inventor： Murali Narasimha ,  Youn Hyoung Heo ,  Yujian Zhang

IPC: H04W56/00 ,  H04W74/08 ,  H04W48/10 ,  H04B7/185

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：US20210378041A1

公开(公告)日：2021-12-02

申请号：US17277116

申请日：2019-09-26

Applicant: APPLE INC.

Inventor： Murali Narasimha ,  Qian Li ,  Jaemin Han ,  Alexander Sirotkin

IPC: H04W76/19 ,  H04W40/02 ,  H04W24/04

Abstract: Systems, method, and devices provide for recovery from backhaul failures for Integrated Access and Backhaul (IAB) communication systems with multi-hop routing.

公开(公告)号：US12137415B2

公开(公告)日：2024-11-05

申请号：US17431277

申请日：2020-03-26

Applicant: Apple Inc.

Inventor： Murali Narasimha ,  Seau S. Lim ,  Anthony Lee ,  Yongjun Kwak

IPC: H04W52/02 ,  H04W74/0808

Abstract: A user equipment (UE), or other network component can operate to generate listen-before-talk (LBT) operations in order to manage power consumption by configuring the discontinuous reception (DRX) in a dynamic manner. The UE can configure an extended active time for the DRX based on whether the LBT is successful and an acquisition channel indication from a base station, e.g., a next generation NodeB (gNB). The UE can operate aperiodic wakeup occasions with or independently of periodic DRX on-durations to better manage power while monitoring a channel for unlicensed carrier communications.

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：US11985544B2

公开(公告)日：2024-05-14

申请号：US17431098

申请日：2020-02-12

Applicant: Apple Inc.

Inventor： Murali Narasimha

IPC: H04W28/082 ,  H04W28/02 ,  H04W28/086 ,  H04W88/14

CPC classification number: H04W28/082 ,  H04W28/0268 ,  H04W28/0861 ,  H04W88/14

Abstract: Disclosed herein are systems and methods of handling user traffic in an integrated access backhaul (IAB) network. For instance, a data counter for two or more of a plurality of user equipment (UE) bearers handled by an IAB node can be configured. Data corresponding to the two or more UE bearers of the plurality of UE bearers can be received. A first UE bearer can be selected. The first UE bearer is the UE bearer having the lowest data counter value of the two or more UE bearers. Data corresponding to the first UE bearer can be transferred to a mobile terminal (MT) in the IAB node. The data counter for the first UE bearer can be increased by a total size of the transferred data.