公开(公告)号：US11129057B2

公开(公告)日：2021-09-21

申请号：US16417992

申请日：2019-05-21

Applicant: Apple Inc.

Inventor： Andrey Chervyakov ,  Rui Huang ,  Yang Tang ,  Jie Cui ,  Yuhan Zhou

IPC: H04W28/20 ,  H04W72/04 ,  H04W76/27 ,  H04L1/00

Abstract: User equipment (UE) includes processing circuitry coupled to memory. To configure the UE for active bandwidth part (BWP) switching, the processing circuitry is to decode RRC signaling configuring a plurality of BWPs for the UE. The RRC signaling further includes an indicator for an initial BWP of the plurality of BWPs for initial use by the UE as an active BWP. DCI received on a PDCCH is decoded, which includes a BWP indicator for switching the active BWP from the initial BWP to another BWP of the plurality of BWPs. RF and baseband parameters to switch the active BWP from the initial BWP to the another BWP are reconfigured. Reconfiguring the RF and baseband parameters cause an interruption of one or more slots of a serving cell of the UE. A starting time of the interruption is within a time duration of a BWP switching delay supported by the UE.

公开(公告)号：US11096076B2

公开(公告)日：2021-08-17

申请号：US15827221

申请日：2017-11-30

Applicant: APPLE INC.

Inventor： Yang Tang ,  Rui Huang ,  Candy Yiu

IPC: H04W24/10 ,  H04W24/02 ,  H04L5/00 ,  H04W72/04

Abstract: A prioritized cell identification and measurement method is disclosed. The method classifies frequency layers to be monitored and measured by an user equipment into normal- and reduced-performance groups. Several different embodiments are described. Where appropriate, the corresponding signaling design is also suggested. User equipment can adopt one or several of these embodiments, and can change configurations in a semi-static manner based on operating conditions.

公开(公告)号：US20210251015A1

公开(公告)日：2021-08-12

申请号：US17174315

申请日：2021-02-11

Applicant: Apple Inc.

Inventor： Chunhai Yao ,  Haitong Sun ,  Chunxuan Ye ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Hong He ,  Jie Cui ,  Oghenekome Oteri ,  Weidong Yang ,  Wei Zeng ,  Yang Tang ,  Yuchul Kim ,  Yuqin Chen ,  Yushu Zhang

IPC: H04W74/08 ,  H04W72/04 ,  H04W76/27

Abstract: The implementations disclosed provide apparatus, systems, and methods for channel structure construction for a two-step random access channel (RACH) using a new radio (NR) user equipment (UE) wireless device. The wireless device includes one or more computer processors configured to generate a physical RACH (PRACH) preamble mapped to a physical uplink shared channel (PUSCH) resource unit. The PRACH preamble is associated with a preamble group indicating a configuration of the PUSCH. The preamble group has a size indicated by radio resource control (RRC) signaling performed by the wireless device. A message is encoded including the PRACH preamble and a payload carried by the PUSCH. The configuration of the PUSCH includes parameters for decoding the message. The wireless device couples communicatively to a base station using the PUSCH. The message is transmitted to the base station. The base station decodes the message based on the parameters of the PUSCH configuration.

公开(公告)号：US20210185694A1

公开(公告)日：2021-06-17

申请号：US17268198

申请日：2019-08-20

Applicant: Apple Inc.

Inventor： Li Hua ,  Yang Tang ,  Jie Cui ,  Manasa Raghavan ,  Zhibin Yu

IPC: H04W72/08 ,  H04W24/08 ,  H04W72/04 ,  H04L5/00

Abstract: A device of a New Radio (NR) User Equipment (UE), a method and a machine readable medium to implement the method. The device includes a Radio Frequency (RF) interface, and processing circuitry coupled to the RF interface, the processing circuitry to: decode a signal from a NR evolved node B (gNodeB) including an indication of one or more control resource sets (CORESETs); select a CORESET based on the indication; and determine a downlink radio link quality based on the CORESET.

公开(公告)号：US11039330B2

公开(公告)日：2021-06-15

申请号：US15743915

申请日：2016-02-27

Applicant: APPLE INC.

Inventor： Rui Huang ,  Yang Tang

IPC: H04W24/10 ,  H04W76/20 ,  H04W52/02 ,  H04W36/00

Abstract: A measurement gap enhancement method is disclosed for use in both synchronous and asynchronous networks. The measurement gap enhancement method employs a first measurement gap pattern, suitable for synchronous networks, including measurement gaps that are of shorter duration and available for more frequency measurements than in legacy implementations. The measurement gap enhancement method also employs a second measurement gap pattern, which also includes short duration measurement gaps, but is also characterized by flexible measurement gap repetition periods suited to asynchronous networks. The first and second measurement gap patterns are made known to an user equipment by way of novel information elements used during RRC connection reconfiguration by the enhanced NodeB base station. The measurement gap enhancement method enables the user equipment to maintain its radio frequency setting between measurements, particularly automatic gain control.

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：US10856169B2

公开(公告)日：2020-12-01

申请号：US16324667

申请日：2017-06-29

Applicant: Apple Inc.

Inventor： Rui Huang ,  Yang Tang ,  Candy Yiu

IPC: H04W24/10 ,  H04W16/28 ,  H04W72/12

Abstract: New radio (NR), also known as fifth generation (5G) radio or fifth generation long term evolution (5G LTE)) uses a measurement gap that allows for measurement on different beams, multiple frame structure and inter-radio access technology measurement. For example, in measurement on the different beams, the UE (114) and eNB (304) beam sweep (i.e., change analog beam transmitter). The UE (114) can measure different beams from a fifth generation node B (gNB) and/or other RAN nodes. The measurement gap can be used for intrafrequency/interfrequency measurement when beam specific reference signals (BRSs) are not transmitted in the same subframe. A multiple frame structure can use the specific measurement configuration to utilize the beam resources efficiently. LTE and NR and other interRAT measurement can also use the measurement gap.

公开(公告)号：US10812169B2

公开(公告)日：2020-10-20

申请号：US16408357

申请日：2019-05-09

Applicant: Apple Inc.

Inventor： Jie Cui ,  Candy Yiu ,  Rui Huang ,  Yang Tang ,  Shuang Tian ,  Youn Hyoung Heo

IPC: H04B7/08 ,  H04B7/06 ,  H04W84/04

Abstract: Methods, systems, and storage media are described for user equipment (UE) measurements for new radio (NR). Other embodiments may be described and/or claimed.

公开(公告)号：US10805017B2

公开(公告)日：2020-10-13

申请号：US16148905

申请日：2018-10-01

Applicant: Apple Inc.

Inventor： Andrey Chervyakov ,  Alexei Davydov ,  Yang Tang ,  Anatoliy Ioffe

IPC: H04B17/29 ,  H04B17/318 ,  H04B17/18 ,  H04W24/10 ,  H04W24/06

Abstract: Embodiments of the present disclosure describe methods, apparatuses, storage media, and systems for UE baseband-demodulation-performance tests in new radio (NR). An over-the-air (OTA) test environment with optimized signaling over the test interface by enabling feedback in the test system may achieve adequate baseband emulation of multipath utilizing NR reference signals. Various embodiments describe how to realize a test loop initialization and achieve better test certainty and controllability over OTA tests.

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.