公开(公告)号：US12052616B2

公开(公告)日：2024-07-30

申请号：US17286393

申请日：2018-11-01

Applicant: Apple Inc.

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

IPC: H04W4/00 ,  H04W36/00 ,  H04W36/08 ,  H04W36/30

CPC classification number: H04W36/00837 ,  H04W36/0094 ,  H04W36/08 ,  H04W36/305

Abstract: This disclosure relates to techniques for performing conditional handovers and cell re-selections along known routes. A cellular base station may select a conditional handover set for a wireless device. The conditional handover set may include information for multiple conditional handovers. The wireless device may receive the conditional handover set. The wireless device may perform conditional handover to at least a first cell indicated in the conditional handover set based at least in part on the conditional handover set.

公开(公告)号：US12041544B2

公开(公告)日：2024-07-16

申请号：US17593830

申请日：2020-10-14

Applicant: Apple Inc.

Inventor： Sethuraman Gurumoorthy ,  Fangli Xu ,  Adesh Kumar ,  Birgit Breining ,  Dawei Zhang ,  Haijing Hu ,  Longda Xing ,  Naveen Kumar R. Palle Venkata ,  Sarma V. Vangala ,  Sigen Ye ,  Srirang A. Lovlekar ,  Wei Zeng ,  Yuqin Chen ,  Zhibin Wu

IPC: H04W52/02 ,  H04W76/28

CPC classification number: H04W52/0229 ,  H04W52/0216 ,  H04W76/28

Abstract: A method for power saving, comprising: establishing a radio resource control (RRC) connection with a wireless device, transmitting, to the wireless device, configuration information indicating a discontinuous reception (DRX) cycle time, a DRX on time period, and an offset time, transmitting an enhanced wake-up signal (EWUS) monitoring occasion for a DRX cycle, the EWUS monitoring occasion based on the offset time and the DRX on time period, determining that the wireless device can skip monitoring one or more future EWUS monitoring occasions, transmitting, during a first DRX cycle, a EWUS for the wireless device during the EWUS monitoring occasion associated with the first DRX cycle, the EWUS indicating that the wireless device can skip the one or more future EWUS monitoring occasions, and skipping transmitting the EWUS to the wireless device during the one or more future EWUS monitoring occasions.

公开(公告)号：US20240205796A1

公开(公告)日：2024-06-20

申请号：US17802803

申请日：2021-09-24

Applicant: Apple Inc.

Inventor： Yuqin Chen ,  Alexander Sirotkin ,  Fangli Xu ,  Haijing Hu ,  Mona Agnel ,  Naveen Kumar R. Palle Venkata ,  Pavan Nuggehalli ,  Ralf Rossbach ,  Sarma V. Vangala ,  Sethuraman Gurumoorthy ,  Sudeep Manithara Vamanan ,  Zhibin Wu

IPC: H04W48/02 ,  H04W4/50

CPC classification number: H04W48/02 ,  H04W4/50

Abstract: Provided is a method by a user equipment (UE), comprising: receiving, from a base station (BS), one or more messages providing different barring configurations for different access identities in an access identity set, the UE has at least one access identity, and the at least one access identity is from the access identity set and indicates that the UE is a disaster inbound roamer with respect to the BS; and performing, by the UE, an access barring check based on the one or more messages.

公开(公告)号：US20240205724A1

公开(公告)日：2024-06-20

申请号：US18590808

申请日：2024-02-28

Applicant: Apple Inc.

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

IPC: H04W28/02 ,  H04L1/1812 ,  H04W80/02

CPC classification number: H04W28/0231 ,  H04L1/1812 ,  H04W28/0278 ,  H04W80/02

Abstract: To accommodate a mix of high frequency carriers and lower frequency carriers, a protocol stack may include a radio link control (RLC) entity that allows configuration of status reporting control parameters on per carrier, or per subcarrier spacing. Alternatively, a protocol stack may include two RLC entities, one for handling high frequency carriers, and another for handling lower frequency carriers. (High frequency carriers and lower frequency carriers may be distinguished based on a frequency threshold.) Furthermore, a user equipment may transmit (to the network) an indication of its L2 buffer size. The network may configure the UE and/or control scheduling, to ensure the UE's L2 buffer does not overrun. Alternatively, the UE may indicate that it can support a percentage of a maximum buffer size. The network may configure the UE and/or control scheduling so that the UE's buffer occupancy does not exceed the percentage.

公开(公告)号：US11979934B2

公开(公告)日：2024-05-07

申请号：US17891296

申请日：2022-08-19

Applicant: Apple Inc.

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

IPC: H04W76/27 ,  H04W76/18 ,  H04W76/19 ,  H04W76/30

CPC classification number: H04W76/27 ,  H04W76/18 ,  H04W76/19 ,  H04W76/30

Abstract: This disclosure relates to techniques for performing radio resource control procedures for remote wireless devices in a wireless communication system. A remote wireless device may transmit a radio resource control message that includes information configured to be relayed to a cellular base station to a relay wireless device, which may relay the information to the cellular base station. The cellular base station may also transmit a radio resource control message that includes information configured to be relayed to the remote wireless device to the relay wireless device, which may relay the information to the remote wireless device.

公开(公告)号：US20240147561A1

公开(公告)日：2024-05-02

申请号：US18405142

申请日：2024-01-05

Applicant: Apple Inc.

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

IPC: H04W76/18 ,  H04L1/00 ,  H04L5/00 ,  H04W4/40 ,  H04W24/08 ,  H04W76/19 ,  H04W76/25 ,  H04W76/27 ,  H04W80/08

CPC classification number: H04W76/18 ,  H04L1/0026 ,  H04L5/0055 ,  H04W4/40 ,  H04W24/08 ,  H04W76/19 ,  H04W76/25 ,  H04W76/27 ,  H04W80/08 ,  H04W92/18

Abstract: Embodiments are presented herein of apparatuses, systems, and methods for performing unicast sidelink access stratum level connection maintenance. A first wireless device and a second wireless device may establish a unicast sidelink wireless connection. One or both of the first wireless device and the second wireless device may perform access stratum level connection maintenance on the unicast sidelink wireless connection. This may include performing any or all of radio link monitoring, radio resource management, or physical layer based link quality detection. The access stratum and the non-access stratum of each device may also communicate with each other regarding either or both of link quality or link status of the unicast sidelink wireless connection.

公开(公告)号：US11956670B2

公开(公告)日：2024-04-09

申请号：US17593335

申请日：2020-10-22

Applicant: Apple Inc.

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

IPC: H04W28/06 ,  H04W40/22 ,  H04W76/14 ,  H04W88/04 ,  H04W92/18

CPC classification number: H04W28/06 ,  H04W40/22 ,  H04W76/14 ,  H04W88/04 ,  H04W92/18

Abstract: A user equipment (UE) is configured to communicate with a further UE via a sidelink (SL). The UE encodes traffic for transmission to the further UE, wherein the traffic comprises a payload and a medium access control (MAC) subheader, wherein the MAC subheader indicates whether the payload corresponds to non-routed traffic between the UE and the further UE or routed traffic between either one of the UE or the further UE and a base station, wherein an other one of the UE or the further UE functions as a relay for the routed traffic and transmits the traffic.

公开(公告)号：US20240032139A1

公开(公告)日：2024-01-25

申请号：US17593697

申请日：2021-08-04

Applicant: APPLE INC.

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

IPC: H04W76/28 ,  H04W52/02

CPC classification number: H04W76/28 ,  H04W52/0225

Abstract: The functions of user equipment (UE), radio access network (RAN) devices, and core network (CN) devices in circumstances where a UE is expected to experience discontinuous coverage are described herein. A UE may send a CN a non-access stratum (NAS) message including a release request indicating that a UE is leaving coverage and assistance information. The CN may interrupt paging of the UE and resume the paging according to the assistance information. A UE may enter a low power usage mode upon leaving coverage, and may use one or more timers to determine when to check for coverage and send a mobility update message corresponding to the low power usage mode. A base station may receive, from a UE, a radio resource control (RRC) message comprising a release request and assistance information, send an RRC release message to the UE in response, and forward the assistance information to the CN.

公开(公告)号：US20230328645A1

公开(公告)日：2023-10-12

申请号：US18330601

申请日：2023-06-07

Applicant: Apple Inc.

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

IPC: H04W52/02 ,  H04W76/28 ,  H04W4/06 ,  H04W68/00 ,  H04W4/90 ,  H04L67/568

CPC classification number: H04W52/0216 ,  H04W76/28 ,  H04W4/06 ,  H04W68/005 ,  H04W4/90 ,  H04L67/568

Abstract: Systems, apparatuses, and methods for notification support in extended discontinuous reception mode. A base station and UE may configure eDRX communication. An indication may be received during the eDRX communication. The network may cache the indication. The network may modify the DRX configuration. The network may use a wake up signal. In response, the UE may receive the indication while achieving power savings from the eDRX configuration.

公开(公告)号：US11751114B2

公开(公告)日：2023-09-05

申请号：US18083836

申请日：2022-12-19

Applicant: Apple Inc.

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

IPC: H04W4/00 ,  H04W36/10 ,  H04W36/00 ,  H04W36/08 ,  H04W36/14

CPC classification number: H04W36/10 ,  H04W36/00835 ,  H04W36/08 ,  H04W36/14

Abstract: Apparatuses, systems, and methods for a wireless device avoiding reselection or handover to cells of different operators. The wireless device may attach to a first base station of a first network operator. The wireless device may determine that a neighboring base station is associated with a second network operator. Based on determining the neighboring base station is associated with the second network operator, the wireless device may exclude the third base station from handover or reselection.