公开(公告)号：US20220361088A1

公开(公告)日：2022-11-10

申请号：US17441254

申请日：2021-05-10

Applicant: Apple Inc.

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

IPC: H04W48/02 ,  H04W4/06 ,  H04W76/11 ,  H04W74/08

Abstract: Provided is a method for a user equipment (UE), comprising: acquiring a notification for participating in an access control process for an multicast/broadcast service (MBS) session; and participating in an access control process for the MBS session by using MBS specific configuration information.

公开(公告)号：US20220360398A1

公开(公告)日：2022-11-10

申请号：US17760551

申请日：2019-09-29

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Haitong Sun ,  Dawei Zhang ,  Haijing Hu ,  Wei Zeng ,  Hong He ,  Chunhai Yao ,  Yuchul Kim ,  Yuqin Chen ,  Fangli Xu ,  Yakun Sun

IPC: H04L5/00

Abstract: To reduce the beam reporting latency, a base station may include a sounding reference signal (SRS) indication to a wireless communication device (UE) as part of the transmission configuration information (TCI) transmitted to the UE, allowing the UE to receive a corresponding downlink signal using the same beam (or with the same beam) the UE used to transmit (or with which the UE transmitted) the SRS indicated in the TCI. The SRS may be one of multiple SRSs previously transmitted by the UE. The UE may transmit the multiple SRSs periodically and/or according to semi-persistent scheduling, or it may transmit them aperiodically. Therefore, the UE does not need to report the beam quality, and the base station may perform the necessary beam measurement(s) instead. Various parameters and conditions may be defined for the UE to support SRS-based TCI.

公开(公告)号：US11470665B2

公开(公告)日：2022-10-11

申请号：US16959995

申请日：2019-08-15

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Wen Zhao ,  Sachin J. Sane ,  Sagar B. Shah ,  Muthukumaran Dhanapal ,  Sriram Subramanian ,  Madhukar K. Shanbhag ,  Vishwanth Kamala Govindaraju ,  Sandeep K. Sunkesala ,  Tarakkumar G. Dhanani ,  Sree Ram Kodali ,  Vijay Gadde ,  Shiva Krishna Narra ,  Sharad Garg ,  Sanjeevi Balasubramanian ,  Dawei Zhang ,  Haijing Hu ,  Rajesh Ambati

IPC: H04W76/15 ,  H04W76/12 ,  H04W28/08 ,  H04W24/10 ,  H04W28/02 ,  H04W28/18

Abstract: Apparatuses, systems, and methods for a wireless device to perform negotiation of bearer type configuration and/or related parameters. A user equipment device (UE) and/or network may determine a bearer configuration and/or other parameters based on information or measurements of the UE. The UE and the BS may exchange data using a negotiated configuration.

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：US20220312386A1

公开(公告)日：2022-09-29

申请号：US17437285

申请日：2020-08-05

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Yushu Zhang ,  Chunxuan Ye ,  Wei Zeng ,  Dawei Zhang ,  Zhibin Wu ,  Haijing Hu

IPC: H04W72/02 ,  H04W72/04 ,  H04L5/00

Abstract: Embodiments are presented herein of processors, systems, and methods for performing cellular sidelink communication using a sidelink control channel with frequency hopping and multi-beam diversity. A first wireless device may receive cellular sidelink control channel configuration information. The cellular sidelink control channel configuration information may indicate a cellular sidelink control channel configuration that includes one or more of frequency hopping or multi-beam diversity. The first wireless device may perform cellular sidelink communication with a second wireless device using the cellular sidelink control channel configuration that includes one or more of frequency hopping or multi-beam diversity.

公开(公告)号：US20220312384A1

公开(公告)日：2022-09-29

申请号：US17437125

申请日：2020-08-05

Applicant: Apple Inc.

Inventor： Chunxuan Ye ,  Chunhai Yao ,  Dawei Zhang ,  Haijing Hu ,  Haitong Sun ,  Hong He ,  Oghenekome Oteri ,  Sigen Ye ,  Wei Zeng ,  Weidong Yang ,  Yushu Zhang ,  Zhibin Wu

IPC: H04W72/02 ,  H04W72/04 ,  H04W72/12 ,  H04W72/10 ,  H04L5/00

Abstract: Embodiments are presented herein of apparatuses, systems, baseband processors, and methods for performing vehicle-to-everything sidelink communication. A wireless device receives first control information through a sidelink control channel specifying one or more first time slots for the wireless device to transmit a first acknowledgment message over a sidelink feedback channel. The wireless device transmits second control information through the sidelink control channel specifying one or more second time slots for the wireless device to receive a second acknowledgment message over the sidelink feedback channel. The first and second time slots at least partially overlap, and it is determined whether the first data packet or the second data packet has a higher priority. The acknowledgment message associated with the higher priority data packet is transmitted or received during at least a subset of the overlapping time slots.

公开(公告)号：US20220312311A1

公开(公告)日：2022-09-29

申请号：US17593121

申请日：2020-04-08

Applicant: APPLE INC.

Inventor： Sarma V. Vangala ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Murtaza A. Shikari ,  Sethuraman Gurumoorthy ,  Yuqin Chen ,  Zhibin Wu

IPC: H04W48/20 ,  H04W36/00

Abstract: Methods, systems, and devices for wireless communications are described for cell selection criteria for Integrated Access and Backhaul (IAB) nodes.

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.