公开(公告)号：US20240381150A1

公开(公告)日：2024-11-14

申请号：US18658297

申请日：2024-05-08

Applicant: APPLE INC.

Inventor： Fangli Xu ,  Haijing Hu ,  Naveen Kumar R Palle Venkata ,  Yuqin Chen ,  Sigen Ye ,  Peng Cheng ,  Zhibin Wu ,  Alexander Sirotkin ,  Ping-Heng Kuo ,  Ralf Rossbach

IPC: H04W24/10 ,  H04B7/06 ,  H04L5/00 ,  H04W52/02 ,  H04W56/00

Abstract: A UE may coordinate the use of a low Power Wake-Up Radio (LR) and a main radio (MR) to determine a Radio Resource Management (RRM) measurement. The UE may enter a deep sleep state by turning off a MR and turning on a LR. The UE may measure the serving cell quality when in the deep sleep state, and enter a normal state by turning on the MR, when the serving cell quality is less than a threshold. The UE may perform a neighbor cell measurement, when in the normal state when a serving cell measurement meets a criteria.

公开(公告)号：US20240056867A1

公开(公告)日：2024-02-15

申请号：US18494423

申请日：2023-10-25

Applicant: APPLE INC.

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

IPC: H04W24/10 ,  H04W76/28 ,  H04W74/08

CPC classification number: H04W24/10 ,  H04W76/28 ,  H04W74/0833

Abstract: Systems and methods for performing measurements of one or more cells during an small data transmission (SDT) procedure between a user equipment (UE) and a network when the UE is in a radio resource control (RRC) INACTIVE state are described herein. Beam and/or cell measurements taken during an SDT measurement period of the SDT procedure may be used to determine one or more respective cell qualities, among other possibilities. Beginnings and endings of the SDT measurement period, and the manner (timing) for taking measurements within the SDT measurement period, are also described. The cell qualities so determined can then be used to monitor, during the SDT measurement period, for a measurement event, which causes the UE to send a measurement report to the network having data determined using those cell qualities, and/or to send messaging intended to induce the network to change the RRC state of the UE.

公开(公告)号：US20240049009A1

公开(公告)日：2024-02-08

申请号：US18313651

申请日：2023-05-08

Applicant: Apple Inc.

Inventor： Peng Cheng ,  Zhibin Wu ,  Haijing Hu ,  Yuqin Chen ,  Fangli Xu ,  Ping-Heng Kuo ,  Alexander Sirotkin ,  Naveen Kumar R Palle Venkata ,  Ralf Rossbach

IPC: H04W24/04 ,  H04W76/14 ,  H04W40/22

CPC classification number: H04W24/04 ,  H04W76/14 ,  H04W40/22 ,  H04W88/04

Abstract: A user equipment (UE), a baseband processor or other network device can operate in a new radio (NR) unlicensed network can operate to communicate in a UE to UE (U2U) relay path through a first relay UE with another UE as a source or destination UE according to a direct communication request initiating from the source UE. The UE can further perform a U2U relay reselection to a second relay UE in response to a trigger condition, either as a source UE or a destination UE.

公开(公告)号：US20230180091A1

公开(公告)日：2023-06-08

申请号：US17593687

申请日：2021-01-13

Applicant: APPLE INC.

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

IPC: H04W36/32 ,  H04W36/00 ,  H04W76/20 ,  H04W36/08 ,  H04W68/02

CPC classification number: H04W36/32 ,  H04W36/0058 ,  H04W76/20 ,  H04W36/08 ,  H04W68/02

Abstract: Provided is a method for a user equipment (UE). The method includes determining a mobility state of the UE and performing reference signal measurement in a relaxation mode within at least one cell. The mobility state indicates mobility capability of the UE, and, the at least one cell is determined based on the mobility state.

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：US20250056363A1

公开(公告)日：2025-02-13

申请号：US18933658

申请日：2024-10-31

Applicant: APPLE INC.

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

IPC: H04W36/32 ,  H04W36/00 ,  H04W36/08 ,  H04W68/02 ,  H04W76/20

Abstract: Provided is a method for a user equipment (UE). The method includes determining a mobility state of the UE and performing reference signal measurement in a relaxation mode within at least one cell. The mobility state indicates mobility capability of the UE, and, the at least one cell is determined based on the mobility state.

公开(公告)号：US12156255B2

公开(公告)日：2024-11-26

申请号：US17437819

申请日：2020-08-05

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 ,  Rafael L Rivera-Barreto ,  Ralf Rossbach ,  Sreevalsan Vallath ,  Srinivasan Nimmala ,  Wei Zeng ,  Yuqin Chen ,  Zhibin Wu

IPC: H04W74/08 ,  H04W56/00 ,  H04W74/0833

Abstract: A user equipment (UE) device may perform random access to a base station in the context where propagation delay between the base station and the UE device is large. The UE device randomly selects a random access preamble from an available set of preambles. The UE device selects a time slot for transmission of the random access preamble based on a configured correspondence between allowable time slots and subsets of the available set. The UE device transmits the random access preamble to a base station in the selected time slot, with timing advance to compensate for a common delay. Thus, the base station, knowing the configured correspondence, is able to determine the time slot in which the random access preamble was transmitted. The UE device receives a random access response that has been addressed with a Random Access Radio Network Temporary Identifier (RA-RNTI).

公开(公告)号：US12108274B2

公开(公告)日：2024-10-01

申请号：US17593297

申请日：2021-06-28

Applicant: APPLE INC.

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

IPC: H04W28/02 ,  H04L41/08 ,  H04W76/14

CPC classification number: H04W28/0268 ,  H04L41/08 ,  H04W76/14

Abstract: Systems and methods are disclosed herein for using integrated access and backhaul (IAB) nodes configured to provide multi-access edge computing (MEC) functionality. An IAB node may include a MEC functionality that includes an instance of an application configured for MEC. A UE using the application connects to the network through an access link with the IAB node and establishes a PDU session for traffic of the application with a core network (CN). The CN may determine that the traffic corresponds to the application, and that an instance of the application is present on the IAB node. Accordingly, the CN may instruct the IAB donor to instantiate a remote packet data convergence protocol (PDCP) layer and, in some cases, a remote service data application (SDAP) layer that are configured to route the traffic from the UE for the application to the instance of the application on the IAB node.

公开(公告)号：US12052717B2

公开(公告)日：2024-07-30

申请号：US17437382

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: H04W72/21 ,  H04W72/23 ,  H04W76/19

CPC classification number: H04W72/21 ,  H04W72/23 ,  H04W76/19

Abstract: This disclosure relates to techniques for reducing latency in a high-propagation-delay wireless communication system. A base station (BS) may receive from a user equipment (UE) a first buffer status report (BSR) indicating an amount of uplink data buffered by the UE for transmission to the BS, and may subsequently receive 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 received prior to expiration of a timer authorizing transmission of a second BSR following the first BSR. In response, the BS may allocate resources for transmission to the UE, based on the first BSR and the first BSR update message. The BS may provide an uplink grant identifying the allocated resources.

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.