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：US20210144560A1

公开(公告)日：2021-05-13

申请号：US16489475

申请日：2017-03-28

Applicant: Apple Inc.

Inventor： Stefania Sesia ,  Jose A. Cesares Cano ,  Christian Drewes ,  Sabine Roessel

IPC: H04W16/14 ,  H04L5/00 ,  H04W72/04 ,  H04W4/70

Abstract: Machines or networked devices such as internet of things (IoT) devices operate to generate an unlicensed narrowband (U-NB) IoT communication based on time domain multiple carrier aggregation operations with component carriers. These component carriers can comprise a component carrier that is anchored to a long term evolution (LTE) licensed band, or entirely comprise unlicensed carrier components that are unanchored to the LTE component carrier in a standalone configuration. Communication circuitry such as a radio frequency interface can transmit the U-NB IoT communication in standalone communications over a low power IoT network in an unlicensed band.

公开(公告)号：US11006435B2

公开(公告)日：2021-05-11

申请号：US16512461

申请日：2019-07-16

Applicant: Apple Inc.

Inventor： Tianyan Pu ,  Chunhui Liu ,  Sabine Roessel ,  Christian Drewes

IPC: H04W72/12 ,  H04W52/02 ,  H04W74/08 ,  H04W88/06 ,  H04W16/14 ,  H04W92/16

Abstract: A communication terminal is described comprising a first transceiver configured for communication according to a first radio access technology and a second transceiver configured for communication according to a second radio access technology. The second transceiver is configured to determine whether a frequency range is occupied by a transmission according to the second radio access technology and to notify the first transceiver whether the frequency range is occupied by a transmission according to the second radio access technology. The first transceiver is configured to receive signals transmitted in the frequency range based on the notification from the second transceiver.