公开(公告)号：US09319210B2

公开(公告)日：2016-04-19

申请号：US14034122

申请日：2013-09-23

Applicant: APPLE INC.

Inventor： Hyung-Nam Choi ,  Maik Bienas ,  Martin Hans

IPC: H04L5/14 ,  H04W72/12 ,  H04L1/18

CPC classification number: H04L5/16 ,  H04L1/1812 ,  H04L5/14 ,  H04L43/16 ,  H04W56/0045 ,  H04W72/121 ,  H04W72/1226 ,  H04W72/1289

Abstract: Methods and apparatus that enable a wireless network system to dynamically change between full-duplex FDD operation and half-duplex FDD operation in order to take advantage of operational aspects of both modes. In one embodiment, an alternative duplex mode of operation is disclosed (semi-static half duplex FDD operation) that enables coordination between the client device (e.g., UMTS UE) and the base station in order to centralize control of radio resource control (RRC) to the base station. The disclosed methods and apparatus may also advantageously incorporate hybrid ARQ (HARQ) or comparable timing requirements into their operation.

公开(公告)号：US20160057631A1

公开(公告)日：2016-02-25

申请号：US14929635

申请日：2015-11-02

Applicant: APPLE INC.

Inventor： Maik Bienas ,  Hyung-Nam Choi ,  Andreas Schmidt ,  Achim Luft ,  Markus Mueck

IPC: H04W16/18 ,  H04W72/04 ,  H04W24/02

CPC classification number: H04W48/16 ,  H04W16/14 ,  H04W16/18 ,  H04W24/00 ,  H04W24/02 ,  H04W28/18 ,  H04W72/04 ,  H04W84/045 ,  H04W84/18 ,  H04W88/08

Abstract: Methods and apparatus that enable and optimize the simultaneous operation of several wireless femtocells having overlapping coverage areas. In one embodiment of the invention, a resource allocation (e.g., time-frequency grid for an OFDM or TDMA based wireless network) governs the simultaneous operation of several femtocells with overlapping coverage areas by specifying uses for resources. A resource allocation unit (RAU) entity is disclosed for managing and modifying resource allocations for femtocells. The community of femtocells can flexibly share resources according to the time-frequency grid, thereby maximizing spectral efficiency without requiring substantial network overhead.

公开(公告)号：US20140106767A1

公开(公告)日：2014-04-17

申请号：US14107377

申请日：2013-12-16

Applicant: APPLE INC.

Inventor： Maik BIENAS ,  Hyung-Nam Choi

IPC: H04W68/02 ,  H04W72/02

CPC classification number: H04W68/02 ,  H04W48/16 ,  H04W48/18 ,  H04W48/20 ,  H04W72/02

Abstract: Methods and apparatus enabling a wireless network to optimize paging channel operation, based on mobile device context information. In one embodiment, the wireless network is a cellular network (e.g., LTE-Advanced), and both base stations and cellular user devices dynamically exchange and maintain a paging agreement. The paging agreement limits the paging channel operation, thereby minimizing unnecessary scanning and usage of irrelevant radio resources. Such paging mechanisms are limited to the air interface between the base station and the mobile device, and are compatible with existing legacy devices and network entities. Networks with appropriately enabled user devices may improve their resource utilization. Base stations may advantageously reclaim freed-up cellular resources to support other services.

公开(公告)号：US11937202B2

公开(公告)日：2024-03-19

申请号：US17878610

申请日：2022-08-01

Applicant: Apple Inc.

Inventor： Hyung-Nam Choi ,  Chandru Aswani ,  Karim E. Morsy ,  Marta Martinez Tarradell

IPC: H04W76/27 ,  G01S5/02 ,  G01S5/06 ,  H04W64/00 ,  H04W84/04

CPC classification number: H04W64/00 ,  G01S5/02 ,  G01S5/0236 ,  G01S5/06 ,  H04W76/27 ,  H04W84/042

Abstract: Systems and methods of providing location techniques for a NB UE are described. The UE transmits, to a location server, a capability message that indicates position capabilities of the UE to support different positioning methods and common information related to the position methods, including that the UE is a NB UE. The UE receives a request for location information that includes a request for positioning measurements for a particular positioning method, a NB message size limit that indicates a limit on an amount of location information to return, and a NB response time to provide the positioning measurements. At least one of the response time or message size limit is different than for the NB UE than for non-NB UEs. The UE enters an idle state, performs the measurements, and transmits at expiry of or before the NB response time, a message containing the measurements.

公开(公告)号：US20220417797A1

公开(公告)日：2022-12-29

申请号：US17902442

申请日：2022-09-02

Applicant: Apple Inc.

Inventor： Hyung-Nam Choi ,  Ozgur Oyman ,  Jerome Parron ,  Marta Martinez Tarradell

IPC: H04W28/22 ,  H04L65/65 ,  H04W28/20 ,  H04W72/08 ,  H04W76/27 ,  H04L65/1104 ,  H04L65/102 ,  H04W88/18

Abstract: Devices, methods, user equipment (UE), network core devices, gateway devices, evolved node B (eNB), and storage media for UE provisioning are described. In one embodiment, a UE is configured for codec bitrate adaptation via an interface configured to receive a bandwidth indication and a codec awareness indication from an eNB. The UE process the bandwidth indication and identifies, based on the codec awareness indication, a first codec from a plurality of codecs supported by the UE. The UE then configures with the eNB using data encoded with the first codec. This data may, for example, be Voice over Long-Term Evolution (VoLTE) data or other such media data. Selection of the codec or associated codec information may be further based on the codec awareness indication.

公开(公告)号：US11477698B2

公开(公告)日：2022-10-18

申请号：US17137739

申请日：2020-12-30

Applicant: Apple Inc.

Inventor： Hyung-Nam Choi ,  Ozgur Oyman ,  Jerome Parron ,  Marta Martinez Tarradell

IPC: H04W28/22 ,  H04W76/27 ,  H04L65/102 ,  H04W28/20 ,  H04W72/08 ,  H04L65/65 ,  H04L65/1104 ,  H04W88/18

Abstract: Devices, methods, user equipment (UE), network core devices, gateway devices, evolved node B (eNB), and storage media for UE provisioning are described. In one embodiment, a UE is configured for codec bitrate adaptation via an interface configured to receive a bandwidth indication and a codec awareness indication from an eNB. The UE process the bandwidth indication and identifies, based on the codec awareness indication, a first codec from a plurality of codecs supported by the UE. The UE then configures with the eNB using data encoded with the first codec. This data may, for example, be Voice over Long-Term Evolution (VoLTE) data or other such media data. Selection of the codec or associated codec information may be further based on the codec awareness indication.

公开(公告)号：US11012966B2

公开(公告)日：2021-05-18

申请号：US16477572

申请日：2017-12-29

Applicant: Apple Inc.

Inventor： Jie Cui ,  Yang Tang ,  Hyung-Nam Choi ,  Seung Hee Han ,  Marta Martinez Tarradell ,  Youn Hyoung Heo

IPC: H04W64/00 ,  H04W76/28 ,  H04W76/27 ,  H04W36/00 ,  G01S5/00 ,  G01S5/10 ,  H04L5/00 ,  H04W48/16

Abstract: Techniques described herein allow for mobile positioning (i.e., the determination of the position of the UE) to be performed when the UE is in Idle mode. In some implementations, assistance data, that is used by the UE as part of the mobile positioning procedure, may be broadcast to the UE or transmitted to the UE within paging messages. The assistance data can potentially be sent to the UE in a number of time slots. In some implementations, the UE may perform measurements needed for mobile positioning only within discontinuous reception (DRX) occasions. Alternatively, in some implementations, the UE may perform measurements needed for mobile positioning outside of DRX occasions.

公开(公告)号：US20210058888A1

公开(公告)日：2021-02-25

申请号：US17008056

申请日：2020-08-31

Applicant: Apple Inc.

Inventor： Hyung-Nam Choi ,  Chandru Aswani ,  Karim E. Morsy ,  Marta Martinez Tarradell

IPC: H04W64/00 ,  H04W76/27 ,  G01S5/02 ,  G01S5/06

Abstract: System and methods of providing location techniques for a NB UE are described. The UE transmits, to a location server, a capability message that indicates position capabilities of the UE to support different positioning methods and common information related to the position methods, including that the UE is a NB UE. The UE receives a request for location information that includes a request for positioning measurement for a particular positioning method, a NB message size limit that indicates a limit on an amount of location information to return, and a NB response time to provide the positioning measurements. At least one of the response time or message size limit is different than for the NB UE than for non-NB UEs. The UE enters an idle state, performs the measurements, and transmits at expiry of or before the NB response time, a message containing the measurements.

公开(公告)号：US10771203B2

公开(公告)日：2020-09-08

申请号：US16222904

申请日：2018-12-17

Applicant: Apple Inc.

Inventor： Candy Yiu ,  Yang Tang ,  Hyung-Nam Choi ,  Richard Burbidge ,  Youn Hyoung Heo

IPC: H04W24/10 ,  H04L5/00 ,  H04W36/00 ,  H04W76/16 ,  H04W4/02

Abstract: A user equipment (UE) operable to perform inter-frequency measurements is disclosed. The UE can decode an information element (IE) received from an eNodeB. The UE can determine whether the IE received from the eNodeB includes a reduced measurement performance field. The UE can determine that a neighboring inter-frequency is configured for a reduced measurement performance when the reduced measurement performance field is included in the IE.

公开(公告)号：US10390327B2

公开(公告)日：2019-08-20

申请号：US15830826

申请日：2017-12-04

Applicant: APPLE INC.

Inventor： Hyung-Nam Choi

IPC: H04W68/02

Abstract: Methods and apparatus enabling a wireless network to dynamically change or implement paging mode operation, such as optimization based on one or more network parameters. In one embodiment, the wireless network is a cellular network (e.g., 3G UMTS or LTE), and both base stations and cellular user devices dynamically configure the paging mode operation based on various desired operational attributes relating to the network parameters. Such flexible paging mechanisms may be published to the network users via several methods, and users with appropriately enabled user devices may improve their power and applications performance. Base stations may also advantageously reclaim freed-up cellular resources to support other services. Legacy subscribers are also not affected.