公开(公告)号：US20220386108A1

公开(公告)日：2022-12-01

申请号：US17773521

申请日：2020-01-03

Applicant: Apple Inc.

Inventor： Vijay Venkataraman ,  Dawei Zhang ,  Haijing Hu ,  Krisztian Kiss ,  Lakshmi N. Kavuri ,  Sridhar Prakasam ,  Srinivasan Nimmala ,  Utkarsh Kumar ,  Yifan Zhu

IPC: H04W8/24 ,  H04W76/16 ,  H04W48/08

Abstract: Embodiments are presented herein of apparatuses, systems, and methods for a user equipment device (UE) and/or cellular network to perform to perform capability updates. Under at least some circumstances, the UE may use a non-cellular (e.g., non-3GPP) access to transmit updated capability information to a cellular network. Elements of the core of the cellular network may provide an identifier corresponding to the updated capability information to the UE for use in future registrations with the cellular network. Further, the core network may provide the updated capability information to a cellular radio access network associated the cellular network. The UE and the cellular network may communicate according to the updated capability.

公开(公告)号：US11516653B2

公开(公告)日：2022-11-29

申请号：US17270421

申请日：2018-08-29

Applicant: Apple Inc.

Inventor： Sethuraman Gurumoorthy ,  Srirang A. Lovlekar ,  Murtaza A. Shikari ,  Haijing Hu ,  Fangli Xu ,  Yuqin Chen ,  Sree Ram Kodali ,  Xu Ou ,  Srinivasan Nimmala ,  Longda Xing ,  Dawei Zhang

IPC: H04W48/10 ,  H04W72/12 ,  H04W76/10 ,  H04W8/24

Abstract: Base stations, user equipment devices (UEs), and methods for a base station to supply service type-specific information to the UE. The base station may broadcast a first system information block (SIB) comprising scheduling information for a plurality of second SIBs, wherein each of the plurality of second SIBs corresponds to a respective service type of a plurality of service types, and wherein the second SIBs describe service type-specific capabilities of the base station. The plurality of service types may comprise two or more of enhanced mobile broadband, ultra-reliable low latency communications, and massive machine-type communications. The base station may broadcast the plurality of second SIBs according to the scheduling information of the first SIB, and may establish a connection and communicate with the UE using one or more service types and according to the service type-specific capabilities described by second SIBs corresponding to the one or more service types.

公开(公告)号：US20220377828A1

公开(公告)日：2022-11-24

申请号：US17267310

申请日：2020-02-13

Applicant: Apple Inc.

Inventor： Zhibin Wu ,  Srinivasan Nimmala ,  Longda Xing ,  Vijay Venkataraman ,  Alosious Pradeep Prabhakar ,  Krisztian Kiss ,  Haijing Hu ,  Cahya A. Masputra

IPC: H04W76/25 ,  H04W76/14

Abstract: A service device (e.g., a user equipment (UE), or other network component) can operate generate sidelink communications with peer UE devices based on PC5 unicast link to enable a direct peer-to-peer communication as part of PC5 vehicle-to-everything (V2X) communications. Radio status link detection can be configured based on a keep alive (KA) coordination scheme via the PC5 unicast link to monitor a status of the PC5 unicast link. A KA timer can be configured based on the KA coordination scheme via the PC5 unicast link. The KA coordination scheme is configured to reduce redundant KA requests in the PC5 unicast link to coordinate the direct peer-to-peer communication across the PC5 unicast link.

公开(公告)号：US20220369248A1

公开(公告)日：2022-11-17

申请号：US17875154

申请日：2022-07-27

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Haijing Hu ,  Dawei Zhang ,  Longda Xing ,  Murtaza A. Shikari ,  Sethuraman Gurumoorthy ,  Sree Ram Kodali ,  Srinivasan Nimmala ,  Srirang A. Lovlekar ,  Xu Ou ,  Yuqin Chen

IPC: H04W56/00 ,  H04L1/18

Abstract: A transmitter (e.g. a packet data convergence protocol, PDCP, in the transmitter), which may be a base station for downlink communications or a user equipment device for uplink communications, may control timing of the delivery of duplicate (same) packets to multiple (e.g. two) wireless links (e.g. radio link control links) for transmission to a receiver, based at least on synchronization information received from the receiver. The duplicate packets may be transmitted over the multiple wireless links to the receiver, which may receive the duplicate packets over the multiple wireless links. The receiver may collect and/or generate synchronization information indicative of the timing or latency between the multiple wireless links, based at least on the respective receive timings of the duplicate packets over the multiple wireless links. The receiver may transmit a report containing the synchronization information to the transmitter periodically and/or in response to a trigger event.

公开(公告)号：US20220361239A1

公开(公告)日：2022-11-10

申请号：US17437800

申请日：2021-01-14

Applicant: Apple Inc.

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

IPC: H04W74/08 ,  H04W76/27

Abstract: Apparatuses, systems, and methods for non-small data transmission (non-SDT) dedicated radio bearer (DRB) handling while in a radio resource control (RRC) inactive state. A wireless device may determine, while operating in the RRC inactive state, that non-SDT data is available for transmission on a non-SDT DRB and determine, based on one or more conditions, to transmit, to a base station, non-SDT data arrival information during SDT procedure. The one or more conditions may be associated with arrival time of the non-SDT data and/or an amount of non-SDT data to be transmitted. The arrival time may be relative to arrival of SDT data, initiation of an SDT procedure, and/or initiation of a subsequent transmission period of an SDT procedure.

公开(公告)号：US11477711B2

公开(公告)日：2022-10-18

申请号：US16796453

申请日：2020-02-20

Applicant: Apple Inc.

Inventor： Muthukumaran Dhanapal ,  Murtaza A. Shikari ,  Pankaj Subhash Vasandani ,  Sai Sravan Bharadwaj Karri ,  Srinivasan Nimmala ,  Srirang A. Lovlekar ,  Vijay Venkataraman

IPC: H04W36/00 ,  H04W36/14 ,  H04W88/06

Abstract: The exemplary embodiments relate to inter-radio access technology (iRAT) signaling reduction for a user equipment (UE). The UE may identify an inter-radio access technology (iRAT) event and determine that a predetermined condition is satisfied. The predetermined condition may be based on identifying a predetermined number of iRAT events within a predetermined time window. The UE may then implement a mechanism for iRAT signaling reduction based on the predetermined condition.

公开(公告)号：US20220322482A1

公开(公告)日：2022-10-06

申请号：US17438196

申请日：2020-10-22

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Murtaza A Shikari ,  Dawei Zhang ,  Haijing Hu ,  Srinivasan Nimmala ,  Zhanfeng Jia ,  Sarma V Vangala ,  Ralf Rossbach

IPC: H04W76/27

Abstract: While in an inactive state, a user equipment (UE) device transmits a message to a base station. The message indicates the UE device's intent to perform transmission and/or reception of user data with the network during the inactive state. The message may include a portion of the user data and/or a buffer status report. The UE device receives a response message that induces a state transition in the UE device. Different state transitions (e.g., to idle, inactive, legacy inactive, connected) may be induced by different types of response message (e.g., release, release with suspend configuration, resume, setup). One particular type of response message causes the UE to stay in the inactive state and enables subsequent user data transmission/reception in the inactive state. The response message may implicitly (or explicitly) indicate that forwarding of the user data to a core network was successful.

公开(公告)号：US20220322446A1

公开(公告)日：2022-10-06

申请号：US17437394

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: H04W74/08 ,  H04W74/00 ,  H04W28/02 ,  H04W72/14

Abstract: This disclosure relates to techniques for reducing latency in a high-propagation-delay wireless communication system. A base station may receive from user equipment device (UE) a random access initiation message, having a characteristic that is configured to indicate to the base station a requested size of a subsequent uplink grant to be provided by the base station for transmission of uplink data by the UE. For example, the characteristic may include a predetermined preamble included in the random access initiation message, such that a requested grant size is indicated by which preamble the UE selects from a plurality of possible preambles. As another example, the characteristic may include which RACH occasion is selected by the UE to transmit the random access initiation message. In response, the base station may allocate resources for use by the UE based on the characteristic.

公开(公告)号：US20220322159A1

公开(公告)日：2022-10-06

申请号：US17438353

申请日：2020-10-29

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Haijing Hu ,  Naveen Kumar R. Palle Venkata ,  Ralf Rossbach ,  Sarma V. Vangala ,  Sethuraman Gurumoorthy ,  Srinivasan Nimmala ,  Sudeep Manithara Vamanan ,  Yuqin Chen

IPC: H04W36/00 ,  H04W36/08 ,  H04W4/06

Abstract: Techniques are described for improving service continuity for Multicast and Broadcast Services (MBS) communications during handover. Techniques are included for supporting lossless handover and data forwarding during handover for peer-to-multiple (PTM) MBS transmission. Lossless handover may be achieved in part by the user equipment (UE) providing to the target base station an indication of the next packet of the MBS session to be received following an RRC reconfiguration message, and an indication of any MBS packets provided by the source base station prior to the RRC reconfiguration message that were not properly received by the UE. Data forwarding may be performed from the source base station to the target base station if the MBS session was not configured on the target base station prior to the handover. Data forwarding may be omitted if the MBS session was configured on the target base station prior to the handover.

公开(公告)号：US20220312261A1

公开(公告)日：2022-09-29

申请号：US17437397

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: H04W28/02 ,  H04W72/12

Abstract: This disclosure relates to techniques for reducing latency in a high-propagation-delay wireless communication system. A user equipment device (UE) may transmit to a base station (BS) a first buffer status report (BSR) indicating an amount of uplink data buffered by the UE for transmission to the BS, and may subsequently transmit to the BS 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 transmitted prior to expiration of a timer authorizing transmission of a second BSR following the first BSR. The UE may receive from the BS an uplink grant allocating resources for transmission of at least a portion of the uplink data buffered by the UE. The uplink grant may have a size based on the first BSR and the first BSR update message.