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.

公开(公告)号：US12284604B2

公开(公告)日：2025-04-22

申请号：US17755592

申请日：2021-05-10

Applicant: Apple Inc.

Inventor： Sarma V. Vangala ,  Fangli Xu ,  Haijing Hu ,  Naveen Kumar R. Palle Venkata ,  Ralf Rossbach ,  Sethuraman Gurumoorthy ,  Sree Ram Kodali ,  Srinivasan Nimmala ,  Srirang A. Lovlekar ,  Vijay Venkataraman ,  Yuqin Chen ,  Zhibin Wu

IPC: H04W48/18 ,  H04W12/06 ,  H04W48/16 ,  H04W60/04 ,  H04W76/10

Abstract: A user equipment (UE) is configured to join a standalone non-public network (SNPN). The receives SNPN information from one or more broadcast messages transmitted from a base station serving as an onboarding base station for the SNPN, determines whether the onboarding base station may be used for onboarding by the UE based on the SNPN information and UE SNPN information stored at the UE and onboards the UE to the SNPN when it is determined that the onboarding base station may be used for onboarding by the UE.

公开(公告)号：US12267903B2

公开(公告)日：2025-04-01

申请号：US17438281

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: H04W76/27 ,  H04W76/19 ,  H04W76/20

Abstract: Apparatuses, systems, and methods for a user equipment device (UE) to perform a method for supporting a periodical radio access network (RAN) notification area (RNA) mechanism when small data transmission (SDT) is enabled for a user equipment device (UE). The method may include the UE receiving, from a base station, an indication enabling an SDT procedure along with an indication of an RNA timer configuration, transitioning, to a radio resource control (RRC) inactive state, and initiating an RNA timer based on the RNA timer configuration. The UE may, upon initiation of the SDT procedure, stop the RNA timer and, upon termination of the SDT procedure, start the RNA timer. During the SDT procedure, the UE may receive any of an SDT termination indication, an SDT subsequent transmission indication, or an SDT subsequent transmission termination indication that may include an updated RNA timer configuration (and/or RNA timer reconfiguration).

公开(公告)号：US12267824B2

公开(公告)日：2025-04-01

申请号：US17593689

申请日：2021-02-19

Applicant: APPLE INC.

Inventor： Ralf Rossbach ,  Fangli Xu ,  Haijing Hu ,  Lakshmi Iyer ,  Sabine Roessel ,  Sarma V. Vangala ,  Sree Ram Kodali ,  Sudeep Manithara Vamanan

IPC: H04W72/12 ,  H04W72/20 ,  H04W72/50

Abstract: Provided is a method for a user equipment (UE), comprising: receiving request for scheduling assistance from a base station, wherein the request for scheduling assistance comprises scheduling configuration to be applied to a set of flows of a scheduled terminal on an application layer; informing the scheduled terminal of the scheduling configuration; receiving scheduling assistance information from the scheduled terminal, wherein the scheduling assistance information is generated by the scheduled terminal based on the set of flows of the scheduled terminal on the application layer; and transmitting the scheduling assistance information to the base station.

公开(公告)号：US20250081072A1

公开(公告)日：2025-03-06

申请号：US18724385

申请日：2022-01-05

Applicant: Apple Inc.

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

IPC: H04W36/32 ,  H04W36/08 ,  H04W84/06

Abstract: A user equipment (UE) may receive a downlink message from a non-terrestrial network (NTN) which may include one or more sets of terrestrial network (TN) cell reselection information. The one or more sets of TN cell reselection information may further include location information corresponding to one or more cells of the TN. The UE may determine its location and, in response to receiving the downlink message, compare its location to the location information corresponding to the one or more cells of the TN. The UE may then select, based on the comparison, a set of the one or more sets of TN cell reselection information and further perform a cell reselection procedure based on the selection.

公开(公告)号：US12213031B2

公开(公告)日：2025-01-28

申请号：US18464582

申请日：2023-09-11

Applicant: Apple Inc.

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

IPC: H04W76/10 ,  H04L1/1607 ,  H04W4/06

Abstract: This disclosure relates to techniques for supporting switching between point to point and point to multipoint delivery with service continuity for broadcast and multicast services in a wireless communication system. A cellular base station and a wireless device may establish a wireless link. The cellular base station may provide information configuring an over the air delivery type with which to receive a broadcast or multicast service, which may be received by the wireless device. The cellular base station may transmit the service using the configured delivery type, and the wireless device may correspondingly receive the service. The cellular base station may provide information configuring the wireless device to switch to a different over the air delivery type, with service continuity. The cellular base station may then transmit the service using that delivery type, and the wireless device may correspondingly receive the service.

公开(公告)号：US12184566B2

公开(公告)日：2024-12-31

申请号：US17593176

申请日：2021-01-14

Applicant: APPLE INC.

Inventor： Ralf Rossbach ,  Fangli Xu ,  Weidong Yang ,  Haijing Hu ,  Wenshu Zhang ,  Sigen Ye ,  Sarma V. Vangala

IPC: H04L5/00 ,  H04W72/21

Abstract: A method for a user equipment (UE) includes decoding an information element (IE) MAC-CellGroupConfig, determining that a field lch-BasedPrioritization of the IE MAC-CellGroupConfig is not configured, determining that a plurality of configured grants (CGs) overlap in time domain, each of the plurality of CGs indicative of uplink resources for allocation to a corresponding one of a plurality of CG physical uplink share channels (CG-PUSCH), causing uplink control information (UCI) to be multiplexed onto a CG-PUSCH, and selecting the CG-PUSCH with multiplexed UCI for transmission.

公开(公告)号：US12155701B2

公开(公告)日：2024-11-26

申请号：US18237061

申请日：2023-08-23

Applicant: APPLE INC.

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

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

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：US12143950B2

公开(公告)日：2024-11-12

申请号：US17438443

申请日：2021-01-12

Applicant: Apple Inc.

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

IPC: H04W76/30 ,  H04W56/00 ,  H04W76/10

Abstract: This disclosure relates to techniques for handling timing alignment for configured grant based small data transmissions in inactive mode in a wireless communication system. A wireless device may establish a radio resource control connection with a cellular base station. The wireless device may receive an indication to release the radio resource control connection. The indication to release the radio resource control connection may configure resources for performing uplink transmissions while in the radio resource control inactive mode. A timing advance may be maintained while in the radio resource control inactive mode. An uplink transmission may be performed using resources configured for performing uplink transmissions while in the radio resource control inactive mode. The uplink transmission may be performed using the timing advance.