公开(公告)号：US20230039715A1

公开(公告)日：2023-02-09

申请号：US17852208

申请日：2022-06-28

Applicant: Apple Inc.

Inventor： Chunxuan Ye ,  Dawei Zhang ,  Wei Zeng ,  Haitong Sun ,  Hong He ,  Huaning Niu ,  Oghenekome Oteri ,  Seyed Ali Akbar Fakoorian ,  Sarma V. Vangala ,  Pavan Nuggehalli ,  Haijing Hu ,  Weidong Yang ,  Sigen Ye ,  Alexander Sirotkin

IPC: H04W56/00 ,  H04B7/185 ,  H04B7/19

Abstract: The present application relates to devices and components including apparatus, systems, and methods for ephemeris signaling in wireless networks.

公开(公告)号：US20220312529A1

公开(公告)日：2022-09-29

申请号：US17593533

申请日：2020-10-22

Applicant: APPLE INC.

Inventor： Sarma V. Vangala ,  Fangli Xu ,  Haijing Hu ,  Longda Xing ,  Murtaza A. Shikari ,  Sree Ram Kodali ,  Srinivasan Nimmala

IPC: H04W76/18 ,  H04W76/12 ,  H04W76/19 ,  H04W76/27

Abstract: Multi-hop configurations in integrated Access and Backhaul (IAB) networks are provided for reduced latency. For modifications to a backhaul adaptation protocol (BAP) header supports faster data radio bearer (DRB) transmissions. Or, for both signaling radio bearer (SRB) and DRB flows, configuration forwarding may be used to reduce configuration latency wherein a single RRCReconfiguration message is forwarded to intermediate nodes that process the configuration and respond back independently. Alternatively, for both SRB and DRB flows, configuration multi-casting may be used for simultaneous IAB node and backup configurations. Methods are provided for fast activation of backup links in IAB nodes.

公开(公告)号：US20220312416A1

公开(公告)日：2022-09-29

申请号：US17593513

申请日：2020-10-22

Applicant: APPLE INC.

Inventor： Naveen Kumar R Palle Venkata ,  Anatoliy S. Ioffe ,  Fangli Xu ,  Fucheng Wang ,  Haijing Hu ,  Ralf Rossbach ,  Sarma V. Vangala ,  Yuqin Chen ,  Zhibin Wu

IPC: H04W72/04

Abstract: Reporting UL Tx DC sub-carrier location information may include decoding a radio resource control (RRC) message received from a base station. The RRC message may comprise a configuration for dynamically reporting uplink (UL) transmit (Tx) direct current (DC) sub-carrier location information. A change associated with at boast one previous UL Tx DC sub-carrier location may be determined to have occurred, thereby creating at least one new UL Tx DC sub-carrier location. In response to determining the change, a medium access control (MAC) control element (MAC CE) may be encoded for transmission to the base station. The MAC CE may include information corresponding to the at least one new UL Tx DC sub-carrier location.

公开(公告)号：US20220303055A1

公开(公告)日：2022-09-22

申请号：US17442065

申请日：2020-05-21

Applicant: Apple Inc.

Inventor： Zhibin Wu ,  Chunxuan Ye ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Sarma V. Vangala ,  Sethuraman Gurumoorthy ,  Srirang A. Lovlekar ,  Yuqin Chen

IPC: H04L1/08 ,  H04L1/18 ,  H04L5/00 ,  H04W28/26 ,  H04W72/02

Abstract: Embodiments are presented herein of apparatuses, systems, and methods for a user equipment device (UE) and a network to perform flexible acknowledgement. A UE may determine whether or not to solicit feedback (e.g., HARQ ACK/NACK) for one or more groupcast transmissions. The determination may be based on factors such as a remaining time to perform the transmission and the amount of time needed to perform the transmission with and without allowing time to receive and process feedback.

公开(公告)号：US11375420B2

公开(公告)日：2022-06-28

申请号：US16991814

申请日：2020-08-12

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Farouk Belghoul ,  Samy Khay-Ibbat ,  Sarma V. Vangala ,  Rafael L. Rivera-Barreto ,  David Boettger ,  Awais M. Hussain ,  Syed Aon Mujtaba

IPC: H04W36/00 ,  H04B17/382 ,  H04B17/336

Abstract: This disclosure relates to techniques for a link budget limited UE to improve communications performance with a cellular network. The UE may perform signal to interference noise ratio (SINR) measurements and use these measurements to adjust a received signal power value that is provided to the cellular network as a received signal power measurement. The UE may generate the received signal power value based at least in part on the SINR measurement in order to reduce the likelihood of handover when the UE has good SINR but poor received signal power. The UE may also provide preferred configuration information to the base station which enhances the performance of the UE when link budget limited. The configuration information may specify one or more parameter values designed to provide improved performance for a link budget limited device.

公开(公告)号：US11082967B2

公开(公告)日：2021-08-03

申请号：US16540474

申请日：2019-08-14

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Awais M. Hussain ,  Samy Khay-Ibbat ,  Sarma V. Vangala ,  Rafael L. Rivera-Barreto

IPC: H04W72/04 ,  H04W48/12 ,  H04W48/20

Abstract: Techniques are disclosed relating to broadcasting and receiving system information in a radio access network (RAN). In some embodiment, a base station is configured to broadcast different sets of first system information blocks (SIBs) for different classes of user equipment devices (e.g., traditional UEs and UEs having a limited link budget). Different classes of UEs may use the different sets of SIBs to initiate communications with the base station.

公开(公告)号：US10993279B2

公开(公告)日：2021-04-27

申请号：US16663437

申请日：2019-10-25

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Ajoy K. Singh ,  Sarma V. Vangala ,  Vinay R. Majjigi ,  Samy Khay-Ibbat

IPC: H04W76/28

Abstract: This disclosure relates to techniques for adaptive C-DRX Management. A wireless device and a cellular base station may establish a cellular link. According to some embodiments, the base station may monitor upcoming traffic with the wireless device. Based at least in part on the upcoming traffic for the wireless device, the base station may provide a command indicating to the wireless device to enter C-DRX. The command may further indicate to the wireless device a number of C-DRX cycles through which to remain in a low power state.

公开(公告)号：US10440593B2

公开(公告)日：2019-10-08

申请号：US16414377

申请日：2019-05-16

Applicant: Apple Inc.

Inventor： Francisco J. Gonzalez ,  Rafael L. Rivera-Barreto ,  Rohan C. Malthankar ,  Sarma V. Vangala ,  Tarik Tabet

IPC: H04W24/02 ,  H04W76/10 ,  H04W8/04 ,  H04W28/18 ,  H04L29/08 ,  H04B1/3827 ,  H04W74/00 ,  H04W88/06

Abstract: System and methods for providing special radio provisions to link budget limited devices. Before establishing a cellular connection with a cellular network, a user equipment device (UE), such as a link budget limited UE, may negotiate the special radio provisions with the network by presenting requested profile information to the network, and receiving back approved profile information from the network. The UE may perform these communications either directly, via a non-cellular communication connection with the network, or indirectly, via a companion or proxy device. When the UE initiates a cellular connection with the network, both entities may use information specified in the approved profile information, which may improve efficiency of the connection. In some scenarios, the approved profile information may identify a class of devices to which the UE belongs. The approved profile information may also be used in establishing connections with other devices of the same class.

公开(公告)号：US10412721B2

公开(公告)日：2019-09-10

申请号：US15846524

申请日：2017-12-19

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Awais M. Hussain ,  Samy Khay-Ibbat ,  Sarma V. Vangala ,  Rafael L. Rivera-Barreto

IPC: H04W72/04 ,  H04W48/20 ,  H04W48/12

Abstract: Techniques are disclosed relating to broadcasting and receiving system information in a radio access network (RAN). In one embodiment, a base station includes at least one antenna, at least one radio, configured to perform cellular communication using a radio access technology (RAT), and one or more processors coupled to the radio. In this embodiment, the base station is configured to broadcast first system information blocks (SIBs) encoded using a first coding rate and a first identifier. In this embodiment, the base station is also configured to broadcast second SIBs encoded using a second coding rate that is lower than the first coding rate and a second identifier. In this embodiment, the second SIBs include only a portion of the information included in the first SIBs and the second SIBs are usable by user equipment devices (UEs) having a limited link budget to determine access parameters for the base station.

公开(公告)号：US10230808B2

公开(公告)日：2019-03-12

申请号：US15710926

申请日：2017-09-21

Applicant: Apple Inc.

Inventor： Sarma V. Vangala ,  Rohan C. Malthankar ,  Tarik Tabet

IPC: H04L29/08 ,  H04W68/00 ,  H04W52/02

Abstract: This disclosure relates to techniques for UEs to improve reception of push notifications via a cellular network. A UE may be configured to provide, to a push notification service, preference information for push notifications associated with an application. The preference information may indicate a preferred period of delivery for the push notifications. When the push notification service receives a push notification addressed to the UE, the push notification service includes the preference information when notifying the cellular network. The cellular network provides a page to the UE, including the preference information. Based on the preference information in the page, the UE may decide whether, and in some scenarios how long, to delay before establishing a connection to receive the available push notification. The network, having access to the preference information, may accommodate the delay.