公开(公告)号：US11405788B2

公开(公告)日：2022-08-02

申请号：US17052163

申请日：2018-05-02

Applicant: Apple Inc.

Inventor： Xiangying Yang ,  Lijia Zhang ,  Huarui Liang ,  Dawei Zhang

IPC: H04W12/37 ,  H04W12/72 ,  H04W12/086 ,  H04W88/02

Abstract: A device level lock policy, which applies to all smart secure platform (SSP) applications of a mobile device, is used to determine whether a particular SSP application can be activated. A tamper resistant hardware secure element (SE) includes a primary platform with a low level operating system (OS) and one or more SSP applications within one or more secondary platform bundles that include secondary platforms with high level OSs specific to the secondary platform bundles. The low level OS enforces the device level lock policy for all secondary platform bundles by verifying whether a lock policy for the SSP application is consistent with the device level lock policy. When verification succeeds, activation is allowed, and when verification fails, activation is disallowed. Subscription identifiers are not provided in unencrypted form to processing circuitry of the mobile device external to the tamper resistant hardware SE to provide subscriber identity privacy protection.

公开(公告)号：US10798647B2

公开(公告)日：2020-10-06

申请号：US16379170

申请日：2019-04-09

Applicant: Apple Inc.

Inventor： Haining Wang ,  Huarui Liang ,  Haijing Hu ,  Dawei Zhang

IPC: H04B7/00 ,  H04W48/18 ,  H04W48/10 ,  H04W48/12 ,  H04W76/12 ,  H04W76/11 ,  H04W8/20 ,  H04W48/16 ,  H04W16/24

Abstract: This disclosure relates to techniques for network slice selection. A network slice selection function of a cellular network may receive a network slice selection request from a radio access network node of the cellular network. The network slice selection request may be received by the radio access network node from a wireless device. A core network slice (and possibly a radio access network slice) of the cellular network may be selected for the service request. A network slice selection response may be provided to the radio access network node, indicating a control plane entry point address for the selected core network slice. The selected radio network slice may also be indicated in the network slice selection response.

公开(公告)号：US20200169978A1

公开(公告)日：2020-05-28

申请号：US16776942

申请日：2020-01-30

Applicant: Apple Inc.

Inventor： Dawei Zhang ,  Haijing Hu ,  Huarui Liang

IPC: H04W60/00 ,  H04W60/04 ,  H04W48/04 ,  H04W12/06 ,  H04L29/12 ,  H04W8/04 ,  H04M7/00

Abstract: Apparatuses, systems, and methods to perform attachment of a wireless device to a next generation gateway via either a base station of a next generation radio access network (RAN) or a mobility management entity of a legacy RAN. An apparatus may be configured to receive an attachment request from a wireless device, determine authentication information via communication with a home subscriber server, determine, based at least in part on the authentication information, whether the wireless device is capable of communicating via the next generation RAT, and send, in response to determining the wireless device is capable, a connection request to a gateway of the next generation RAN. The authentication information may include subscription information associated with the wireless device.

公开(公告)号：US10278123B2

公开(公告)日：2019-04-30

申请号：US15128622

申请日：2016-07-04

Applicant: Apple Inc.

Inventor： Haining Wang ,  Huarui Liang ,  Haijing Hu ,  Dawei Zhang

IPC: H04B7/00 ,  H04W48/18 ,  H04W48/10 ,  H04W48/12 ,  H04W76/12 ,  H04W76/11 ,  H04W8/20 ,  H04W48/16 ,  H04W16/24

Abstract: This disclosure relates to techniques for network slice selection. A network slice selection function of a cellular network may receive a network slice selection request from a radio access network node of the cellular network. The network slice selection request may be received by the radio access network node from a wireless device. A core network slice (and possibly a radio access network slice) of the cellular network may be selected for the service request. A network slice selection response may be provided to the radio access network node, indicating a control plane entry point address for the selected core network slice. The selected radio network slice may also be indicated in the network slice selection response.

公开(公告)号：US10257239B2

公开(公告)日：2019-04-09

申请号：US15030175

申请日：2015-07-24

Applicant: Apple Inc.

Inventor： Huarui Liang ,  Zhiwei Wang ,  Dawei Zhang

IPC: H04L29/06 ,  H04W8/18 ,  H04W36/00 ,  H04W36/26 ,  H04W36/36 ,  H04W48/18 ,  H04W60/00

Abstract: This disclosure relates to techniques for reducing overhead associated with packet switched voice service registration. According to some embodiments, a cellular network entity associated with a cellular network may receive a request relating to packet switched voice service from a wireless device. It may be determined whether subscription information for the wireless device indicates that packet switched voice service from the cellular network is permitted to the wireless device. A response to the request indicating whether packet switched voice service from the cellular network is available to the wireless device may be provided to the wireless device. The response may be generated based at least in part on the subscription information.

公开(公告)号：US09924515B2

公开(公告)日：2018-03-20

申请号：US14661543

申请日：2015-03-18

Applicant: Apple Inc.

Inventor： Dawei Zhang ,  Huarui Liang ,  Tarik Tabet ,  Farouk Belghoul

IPC: H04W72/04 ,  H04W52/36 ,  H04W52/14 ,  H04W52/16

CPC classification number: H04W72/0453 ,  H04W52/146 ,  H04W52/16 ,  H04W52/367 ,  Y02D70/00

Abstract: A method for dynamically selecting an A-MPR value to apply for an uplink transmission is provided. The method can include a wireless communication device receiving an indication from a network that A-MPR should be applied for uplink transmissions within a frequency band used for communication between the wireless communication device and the network. The method can further include the wireless communication device receiving an RB allocation for a subset of RB's within the frequency band from the network. The method can additionally include the wireless communication device determining an allocation ratio and a distribution characteristic of the allocated subset of RB's within the frequency band. The method can also include the wireless communication device selecting an A-MPR value to apply based at least in part on the allocation ratio and the distribution characteristic. The method can further include the wireless communication device applying the selected A-MPR.

公开(公告)号：US20180054831A1

公开(公告)日：2018-02-22

申请号：US15027539

申请日：2016-02-15

Applicant: Apple Inc.

Inventor： Haijing Hu ,  Dawei Zhang ,  Huarui Liang

IPC: H04W72/12 ,  H04W76/02 ,  H04W72/04

CPC classification number: H04W72/1273 ,  H04W48/04 ,  H04W48/20 ,  H04W68/00 ,  H04W72/042 ,  H04W72/1289 ,  H04W76/15 ,  H04W76/19 ,  H04W76/27

Abstract: This disclosure relates to techniques for performing network initiated downlink data transmissions with a wireless device in a cellular network. According to some embodiments, a wireless device and a cellular network may perform an attach procedure. As part of the attach procedure, the wireless device may indicate to the cellular network to store context information associated with the wireless device after the attach procedure is completed and the wireless device transitions to idle mode. The wireless device may also store context information. The stored context information may be used in conjunction with a network initiated downlink data transaction between the cellular network and the wireless device.

公开(公告)号：US09794015B2

公开(公告)日：2017-10-17

申请号：US14667745

申请日：2015-03-25

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Farouk Belghoul ,  Dawei Zhang ,  Huarui Liang

IPC: H04W4/00 ,  H04J11/00 ,  H04L25/02 ,  H04W48/16

CPC classification number: H04J11/0079 ,  H04J11/005 ,  H04L25/0204 ,  H04L25/0228 ,  H04W48/16

Abstract: This disclosure relates to performing cell measurements in unlicensed frequency bands and/or in channels with interference. According to some embodiments, a wireless user equipment (UE) device may define a reference symbol vector for a cell. Each respective element of the reference symbol vector may correspond to a respective subcarrier of the cell that carries a respective reference symbol. The UE may perform channel estimation at each respective element of the reference symbol vector. The UE may estimate the cell strength of the cell by cross-correlating channel estimates of different elements of the reference symbol vector.

公开(公告)号：US09769712B2

公开(公告)日：2017-09-19

申请号：US14790041

申请日：2015-07-02

Applicant: Apple Inc.

Inventor： Huarui Liang ,  Zhiwei Wang ,  David Boettger ,  Dawei Zhang ,  Farouk Belghoul ,  Krisztian Kiss

IPC: H04W36/00 ,  H04W36/14

CPC classification number: H04W36/0022 ,  H04W36/14

Abstract: Performing a circuit-switched fallback (CSFB) call with improved reliability. A request to establish a CSFB call may be received by a UE that is currently in a pool overlap area. The network resource controller, or the base station, transmits information to the UE which indicates the pools in which neighboring cells are operating. The UE uses this information to select a circuit-switched cell on which to operate for the CSFB operation, wherein the selected CS cell is in the same pool area as the current pool area. This prevents the UE from inadvertently camping on a CS cell in a different pool area, which could cause call failure on some networks. The information provided by the base station may comprise a pool area id, or may comprise mapping relation information that is useable by the UE to determine the current pool area.

公开(公告)号：US20170171256A1

公开(公告)日：2017-06-15

申请号：US15030175

申请日：2015-07-24

Applicant: Apple Inc.

Inventor： Huarui Liang ,  Zhiwei Wang ,  Dawei Zhang

IPC: H04L29/06 ,  H04W36/36 ,  H04W48/18 ,  H04W36/00 ,  H04W36/26

CPC classification number: H04L65/1073 ,  H04L29/06027 ,  H04L65/1006 ,  H04L65/1016 ,  H04L65/1046 ,  H04L65/105 ,  H04L65/40 ,  H04W8/18 ,  H04W36/0055 ,  H04W36/26 ,  H04W36/36 ,  H04W48/18 ,  H04W60/00

Abstract: This disclosure relates to techniques for reducing overhead associated with packet switched voice service registration. According to some embodiments, a cellular network entity associated with a cellular network may receive a request relating to packet switched voice service from a wireless device. It may be determined whether subscription information for the wireless device indicates that packet switched voice service from the cellular network is permitted to the wireless device. A response to the request indicating whether packet switched voice service from the cellular network is available to the wireless device may be provided to the wireless device. The response may be generated based at least in part on the subscription information.