公开(公告)号：US20240040427A1

公开(公告)日：2024-02-01

申请号：US17593297

申请日：2021-06-28

Applicant: APPLE INC.

Inventor： Sudeep Manithara Vamanan ,  Sarma V. Vangala ,  Fangli Xu ,  Haijing Hu ,  Krisztian Kiss ,  Mona Agnel ,  Naveen Kumar R Palle Venkata ,  Ralf Rossbach ,  Sethuraman Gurumoorthy ,  Yuqin Chen ,  Zhibin Wu

IPC: H04W28/02 ,  H04W76/14 ,  H04L41/08

CPC classification number: H04W28/0268 ,  H04W76/14 ,  H04L41/08

Abstract: Systems and methods are disclosed herein for using integrated access and backhaul (IAB) nodes configured to provide multi-access edge computing (MEC) functionality. An IAB node may include a MEC functionality that includes an instance of an application configured for MEC. A UE using the application connects to the network through an access link with the IAB node and establishes a PDU session for traffic of the application with a core network (CN). The CN may determine that the traffic corresponds to the application, and that an instance of the application is present on the IAB node. Accordingly, the CN may instruct the IAB donor to instantiate a remote packet data convergence protocol (PDCP) layer and, in some cases, a remote service data application (SDAP) layer that are configured to route the traffic from the UE for the application to the instance of the application on the IAB node.

公开(公告)号：US11770421B2

公开(公告)日：2023-09-26

申请号：US17980296

申请日：2022-11-03

Applicant: Apple Inc.

Inventor： Ozgur Oyman ,  Jerome Parron ,  Thomas Luetzenkirchen ,  Sudhir Shankar Pola ,  Ralf Rossbach

IPC: H04L65/1104 ,  H04L65/1069 ,  H04L65/1073 ,  H04W84/04

CPC classification number: H04L65/1104 ,  H04L65/1069 ,  H04L65/1073 ,  H04W84/042

Abstract: In some embodiments, during the SIP registration, the UE indicates in the REGISTER requests its support for ANBR as defined by “ANBR” attribute in the SDP and the P-CSCF indicates its support for the “ANBR” attribute in the SDP in the response for registration. In some embodiments, the P-CSCF serving a PLMN passes through the “ANBR” attribute in the SDP when the P-CSCF recognizes that the PLMN supports ANBR functionality. In some embodiments, the UE can include “ANBR” attribute in the SDP offer and answers when the P-CSCF indicates its support for the “ANBR” attribute in the SDP.

公开(公告)号：US20230268984A1

公开(公告)日：2023-08-24

申请号：US17440865

申请日：2020-10-22

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Sarma V. Vangala ,  Chunxuan Ye ,  Haijing Hu ,  Krisztian Kiss ,  Murtaza A. Shikari ,  Naveen Kumar R. Palle Venkata ,  Ralf Rossbach ,  Sree Ram V. Kodali ,  Srinivasan Nimmala ,  Vijay Venkataraman ,  Yuqin Chen ,  Zhibin Wu

IPC: H04B7/185 ,  H04W48/16 ,  H04W48/20

CPC classification number: H04B7/1851 ,  H04W48/16 ,  H04W48/20

Abstract: Systems, methods, and devices are provided for performing cell selection or reselection in networks that include earth moving beams. In one example, a method includes receiving, via a satellite, control information transmitted by a base station indicating that a beam associated with a cell ID has been redirected; in response, measuring a beam strength of the redirected beam; and performing cell re-selection based on the measured beam strength.

公开(公告)号：US20230261738A1

公开(公告)日：2023-08-17

申请号：US17441093

申请日：2020-11-03

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Sarma V. Vangala ,  Chunxuan Ye ,  Haijing Hu ,  Krisztian Kiss ,  Murtaza A. Shikari ,  Naveen Kumar R. Palle Venkata ,  Ralf Rossbach ,  Sree Ram Kodali ,  Srinivasan Nimmala ,  Vijay Venkataraman ,  Yuqin Chen ,  Zhibin Wu

IPC: H04B7/185 ,  H04W48/16 ,  H04W68/02

CPC classification number: H04B7/18519 ,  H04W48/16 ,  H04W68/02 ,  H04W84/06

Abstract: Techniques discussed herein may enable effective cell identification and paging within a non-terrestrial network (NTN). A base station may map logical cell identifiers, corresponding to satellites, to physical cell identifiers, corresponding to physical or geographic cells. The techniques enable cell identification and paging in both Earth-fixed cell scenarios and Earth-moving cell scenarios, and in scenarios where the satellite moves between countries.

公开(公告)号：US20230189048A1

公开(公告)日：2023-06-15

申请号：US17439342

申请日：2021-05-10

Applicant: Apple Inc.

Inventor： Naveen Kumar R Palle Venkata ,  Ralf Rossbach ,  Dawei Zhang ,  Haijing Hu ,  Fangli Xu ,  Yuqin Chen ,  Zhibin Wu ,  Sama V. Vangala ,  Srinivasan Nimmala ,  Srirang A Lovlekar ,  Sethuraman Gurumoothy

IPC: H04W28/02 ,  H04L1/1812

CPC classification number: H04W28/0231 ,  H04L1/1812 ,  H04W28/0278 ,  H04W80/02

Abstract: To accommodate a mix of high frequency carriers and lower frequency carriers, a protocol stack may include a radio link control (RLC) entity that allows configuration of status reporting control parameters on per carrier, or per subcarrier spacing. Alternatively, a protocol stack may include two RLC entities, one for handling high frequency carriers, and another for handling lower frequency carriers. (High frequency carriers and lower frequency carriers may be distinguished based on a frequency threshold.) Furthermore, a user equipment may transmit (to the network) an indication of its L2 buffer size. The network may configure the UE and/or control scheduling, to ensure the UE's L2 buffer does not overrun. Alternatively, the UE may indicate that it can support a percentage of a maximum buffer size. The network may configure the UE and/or control scheduling so that the UE's buffer occupancy does not exceed the percentage.

公开(公告)号：US20230179518A1

公开(公告)日：2023-06-08

申请号：US17593693

申请日：2021-01-14

Applicant: APPLE INC.

Inventor： Sarma V. Vangala ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Murtaza A. Shikari ,  Ralf Rossbach

IPC: H04L45/00 ,  H04W40/22

CPC classification number: H04L45/70 ,  H04L45/38 ,  H04W40/22

Abstract: Systems and methods for implementing various metrics for in integrated IAB networks are disclosed. A child IAB node may determine metrics regarding one or more of its data flows and report these metrics to an upstream IAB node (that is a parent node and/or an IAB donor). The upstream node may determine a data flow prioritization configuration using these metrics that it either uses itself or sends back to the child IAB node or another IAB node of the IAB network for use there. Metrics discussed include a number of hops metric, an aggregate throughput per BH RLC channel ID (or per routing ID) metric, a fairness index per BH RLC channel ID (or per routing ID) metric, a packet drop metric, and a per-hop latency for aggregated traffic per BH RLC channel ID (or per routing ID) per IAB node metric.

公开(公告)号：US20230076746A1

公开(公告)日：2023-03-09

申请号：US17871865

申请日：2022-07-22

Applicant: Apple Inc.

Inventor： Alexander Sirotkin ,  Chunxuan Ye ,  Haijing Hu ,  Naveen Kumar R. Palle Venkata ,  Pavan Nuggehalli ,  Ralf Rossbach ,  Sarma V. Vangala ,  Sethuraman Gurumoorthy ,  Zhibin Wu

IPC: H04W36/32 ,  H04W36/00

Abstract: The present application relates to devices and components including apparatus, systems, and methods for control-plane signaling for UE associations in wireless networks.

公开(公告)号：US20220417972A1

公开(公告)日：2022-12-29

申请号：US17438214

申请日：2021-06-25

Applicant: Apple Inc.

Inventor： Ralf Rossbach ,  Fangli Xu ,  Sarma V. Vangala ,  Haijing Hu ,  Weidong Yang ,  Lakshmi Iyer ,  Sabine Roessel

IPC: H04W72/12

Abstract: An application layer in a device, a service data adaptation protocol (SDAP) layer in the device, and/or a media access control (MAC) layer in the device may determine that wireless communication resources allocated to the device need to be adjusted. The determination may be in response to detecting that a quality of the wireless connection of the device has deteriorated, or it may be based on advance knowledge of information pertaining to an application layer payload in the device. In response to the determination the device may transmit, in a MAC Control Element (MAC CE) to a base station, a request for an adjustment of the allocated wireless communication resources. The adjustment may lead to a temporary boost of resources for a limited period of time or to a persistent update of the allocated wireless communication resources. To allow better scheduling of multiple QoS flows mapped to the same DRB and better selection of data when constructing a MAC Packet Data Unit (PDU), a mapping between QoS flows and LCHs may also be provided to the MAC layer.

公开(公告)号：US20220322289A1

公开(公告)日：2022-10-06

申请号：US17438498

申请日：2020-10-22

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Chunhai Yao ,  Dawei Zhang ,  Haijing Hu ,  Murtaza A. Shikari ,  Naveen Kumar R. Palle Venkata ,  Ralf Rossbach ,  Sarma V. Vangala ,  Sethuraman Gurumoorthy ,  Srinivasan Nimmala ,  Srirang A. Lovlekar ,  Sudeep Manithara Vamanan ,  Wei Zeng ,  Yuqin Chen ,  Zhibin Wu

IPC: H04W72/00

Abstract: Apparatuses, systems, and methods for enhancement of MBMS transmission reliability. A UE may receive PDCP PDUs via a PTM link from a network. The UE may determine to provide feedback regarding receipt of the PDCP PDUs, e.g., based, at least in part, on an occurrence of a triggering event. The triggering event may be configured by the network and may include the UE receiving a request for feedback from the network, the UE determining that at least one PDCP PDU is missing, the UE determining that a number of missing PDCP PDUs exceeds a threshold, and/or the UE determining that a PDCP reordering window is changing based on expiration of a PDCP reordering timer. The UE may transmit feedback associated with receipt of the PDCP PDUs. The feedback may include an indication of missing PDCP PDUs, e.g., such as an indication of a sequence number associated with missing PDCP PDUs.

公开(公告)号：US20220312460A1

公开(公告)日：2022-09-29

申请号：US17437382

申请日：2020-08-06

Applicant: Apple Inc.

Inventor： Sarma V. Vangala ,  Tarik Tabet ,  Chunxuan Ye ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Murtaza A. Shikari ,  Naveen Kumar R. Palle Venkata ,  Ralf Rossbach ,  Sreevalsan Vallath ,  Srinivasan Nimmala ,  Wei Zeng

IPC: H04W72/12 ,  H04W72/14 ,  H04W76/19

Abstract: This disclosure relates to techniques for reducing latency in a high-propagation-delay wireless communication system. A base station (BS) may receive from a user equipment (UE) a first buffer status report (BSR) indicating an amount of uplink data buffered by the UE for transmission to the BS, and may subsequently receive a first BSR update message indicating that an additional amount of uplink data has been buffered by the UE subsequent to transmission of the first BSR. The first BSR update message may be received prior to expiration of a timer authorizing transmission of a second BSR following the first BSR. In response, the BS may allocate resources for transmission to the UE, based on the first BSR and the first BSR update message. The BS may provide an uplink grant identifying the allocated resources.