公开(公告)号：US20220038224A1

公开(公告)日：2022-02-03

申请号：US17357544

申请日：2021-06-24

Applicant: APPLE INC.

Inventor： Jie Cui ,  Dawei Zhang ,  Hong He ,  Manasa Raghavan ,  Yang Tang

IPC: H04L5/00 ,  H04W72/04

Abstract: Techniques for grouping multiple serving component carriers (CCs) are disclosed. In one example, a frequency separation that defines a frequency range from a lower bound frequency to a higher bound frequency for each CC group of a plurality of CC groups may be determined, wherein a difference between the lower bound frequency and the higher bound frequency of each CC group may be equal to the frequency separation. A frequency of a first CC from a collection of CCs may be determined. The first CC may be assigned to a first CC group, of the plurality of CC groups, wherein the first CC group may have a frequency range that includes the frequency of the first CC.

公开(公告)号：US11240692B2

公开(公告)日：2022-02-01

申请号：US16604982

申请日：2018-05-11

Applicant: Apple Inc.

Inventor： Jie Cui ,  Yang Tang ,  Rui Huang ,  Yuan Zhu ,  Shuang Tian

IPC: H04B7/204 ,  H04W24/10 ,  H04L27/26 ,  H04W28/06 ,  H04W36/00

Abstract: An invention to perform a method of cell measurement in a wireless network, wherein the wireless network comprises a plurality of frequency layers, the invention configured to: determine a Measurement Gap Length, MGL, for each one of the plurality of frequency layers operational in the wireless network; determine a gap bitmap to indicate a measurement gap availability in a time sequence for each one of the plurality of frequency layers of the wireless network; and transmit gap assistance information for each one of the plurality of frequency layers of the wireless network to a User Equipment, wherein the gap assistance information comprises at least the determined Measurement Gap Length and the determined gap bitmap.

公开(公告)号：US20210377988A1

公开(公告)日：2021-12-02

申请号：US17286606

申请日：2018-11-05

Applicant: Apple Inc.

Inventor： Yuhan Zhou ,  Rui Huang ,  Yang Tang ,  Hua Li ,  Jie Cui ,  Qiming Li

IPC: H04W72/12

Abstract: A device of a New Radio (NR) User Equipment (UE), a system, a method and a machine-readable medium. The device includes a radio frequency (RF) interface and processing circuitry coupled to the RF interface. The processing circuitry is to: cause communication with a NR evolved Node B (gNodeB) on a first bandwidth part (BWP); determine a BWP switching delay for an uplink (UL) communication from the UE to the gNodeB, the BWP switching delay based on a timing advance (TA) for the UL communication; encode the UL communication for transmission to the gNodeB; switch from the first BWP to a second BWP at an expiration of the BWP switching delay; and cause transmission of the UL communication on the second BWP.

公开(公告)号：US11134432B2

公开(公告)日：2021-09-28

申请号：US16480837

申请日：2018-02-02

Applicant: Apple Inc.

Inventor： Anatoliy Ioffe ,  Debdeep Chatterjee ,  Marta Martinez Tarradell ,  Andrey Chervyakov ,  Jie Cui ,  Seau S. Lim ,  Qiaoyang Ye ,  Yang Tang ,  Seunghee Han ,  Shuang Tian

IPC: H04W48/12 ,  H04W4/70 ,  H04W76/10 ,  H04W74/00 ,  H04W74/08

Abstract: An apparatus of a user equipment (UE) includes processing circuitry configured to decode a master information block (MIB) using a set of physical broadcast channel (PBCH) symbols received within a downlink frame to obtain system frame number (SFN) information. The downlink frame includes multiple copies of the PBCH symbols within at least three subframes of the downlink frame. A system information block (SIB) may be decoded based on the SFN information, to obtain uplink channel configuration information. Random access channel (RACH) procedure may be performed with a base station (BS) based on the uplink channel configuration information, to obtain an uplink resource assignment. A connection setup completion message can be encoded for transmission to the BS using the uplink resource assignment. The set of PBCH symbols can include a set of four legacy PBCH symbols.

公开(公告)号：US20210250267A1

公开(公告)日：2021-08-12

申请号：US16917359

申请日：2020-06-30

Applicant: Apple Inc.

Inventor： Anatoliy Sergey Ioffe ,  Elmar Wagner ,  Jan M. Zaleski ,  Jie Cui ,  Yang Tang ,  Andre Hanke

IPC: H04L12/26 ,  H04W24/10 ,  H04W72/04 ,  H04B1/12 ,  H04L12/24

Abstract: The present disclosure relates to systems and methods for operating transceiver circuitry to transmit or receive signals on various frequency ranges. To do so, an electronic device may determine a receive delay between one or more messages received on different component carriers and may transmit the receive delay to a base station to update how communications are transmitted on one of the component carriers. The update made to at least one of the component carriers may compensate for the receive delay between the different component carriers. Compensating for the receive delay may improve operations that delay downlink communications to reduce a likelihood or stop simultaneous downlink and uplink communications by further adjusting for delays seen at an electronic device when communicating with base stations disposed at a different distances from the electronic device.

公开(公告)号：US20210204361A1

公开(公告)日：2021-07-01

申请号：US17111730

申请日：2020-12-04

Applicant: Apple Inc.

Inventor： Zhibin Yu ,  Michael A. Ruder ,  Jie Cui ,  Yang Tang

IPC: H04W88/06 ,  H04W8/22 ,  H04L5/00 ,  H04W72/04 ,  H04W76/27 ,  H04W8/24 ,  H04B7/00

Abstract: Embodiments of a User Equipment (UE), Next Generation Node-B (gNB) and methods of communication are generally described herein. The UE may be configured for carrier aggregation (CA) in which a plurality of component carriers (CCs) are aggregated. The UE may determine a mapping of the CCs to a plurality of antenna panels for downlink reception, wherein a subset of the CCs are mapped to each antenna panel. The UE may transmit, to the gNB, radio resource control (RRC) signaling that indicates information related to the mapping. The gNB may, based at least partly on the mapping, determine, for each CC: a first scheduled time period for transmit beam refinement, and a second scheduled time period for receive beam refinement at the UE.

公开(公告)号：US20210006995A1

公开(公告)日：2021-01-07

申请号：US16604982

申请日：2018-05-11

Applicant: Apple Inc.

Inventor： Jie Cui ,  Yang Tang ,  Rui Huang ,  Yuan Zhu ,  Shuang Tian

IPC: H04W24/10 ,  H04L27/26

Abstract: An invention to perform a method of cell measurement in a wireless network, wherein the wireless network comprises a plurality of frequency layers, the invention configured to: determine a Measurement Gap Length, MGL, for each one of the plurality of frequency layers operational in the wireless network; determine a gap bitmap to indicate a measurement gap availability in a time sequence for each one of the plurality of frequency layers of the wireless network; and transmit gap assistance information for each one of the plurality of frequency layers of the wireless network to a User Equipment, wherein the gap assistance information comprises at least the determined Measurement Gap Length and the determined gap bitmap.

公开(公告)号：US10863582B2

公开(公告)日：2020-12-08

申请号：US16276824

申请日：2019-02-15

Applicant: Apple Inc.

Inventor： Zhibin Yu ,  Michael A. Ruder ,  Jie Cui ,  Yang Tang

IPC: H04W88/06 ,  H04W8/22 ,  H04L5/00 ,  H04W72/04 ,  H04W76/27 ,  H04W8/24 ,  H04B7/00 ,  H04W24/00

Abstract: Embodiments of a User Equipment (UE), Next Generation Node-B (gNB) and methods of communication are generally described herein. The UE may be configured for carrier aggregation (CA) in which a plurality of component carriers (CCs) are aggregated. The UE may determine a mapping of the CCs to a plurality of antenna panels for downlink reception, wherein a subset of the CCs are mapped to each antenna panel. The UE may transmit, to the gNB, radio resource control (RRC) signaling that indicates information related to the mapping. The gNB may, based at least partly on the mapping, determine, for each CC: a first scheduled time period for transmit beam refinement, and a second scheduled time period for receive beam refinement at the UE.

公开(公告)号：US10862599B2

公开(公告)日：2020-12-08

申请号：US16410562

申请日：2019-05-13

Applicant: Apple Inc.

Inventor： Shuang Tian ,  Andrey Chervyakov ,  Dmitry Belov ,  Jie Cui ,  Yang Tang

IPC: H04B17/00 ,  H04B17/391 ,  H04B17/21 ,  H04B17/29 ,  H04B7/08

Abstract: Systems and methods provide solutions for testing an 8Rx capable UE using test cases for 4Rx capable UEs. An example method establishes a connection from a first Tx source and a second Tx source to each of 8Rx antenna ports. The connection duplicates a fading channel from both the first Tx source and the second Tx source to each of the eight Rx antenna ports, and adds independent noise for each of the 8Rx antenna ports. One test scenario uses 4Rx supported RF bands by connecting four of the Rx ports with data from a system simulator, and the other four Rx ports are connected with zero input. Same requirements specified with 4Rx capable UEs are applied. Another test scenario uses 8Rx supported RF bands and applies lower dB SNR requirements than those specified for 4Rx tests.

公开(公告)号：US10784947B2

公开(公告)日：2020-09-22

申请号：US16379047

申请日：2019-04-09

Applicant: Apple Inc.

Inventor： Yang Tang ,  Shuang Tian ,  Andrey Chervyakov ,  Jie Cui ,  Hua Li ,  Dmitry Belov ,  Carlos Cordeiro ,  Geng Wu ,  Jeongho Jeon ,  Puneet Jain ,  Qian Li ,  Youn Hyoung Heo ,  Anthony Lee ,  Seau S. Lim

IPC: H04B7/06 ,  H04W72/04 ,  H04W24/10 ,  H04W24/08

Abstract: Embodiments of a User Equipment (UE), Next Generation Node-B (gNB) and methods of communication are generally described herein. The UE receive training signals from a plurality of transmit-receive points (TRPs) associated with the gNB. Each training signal may comprise a reference signal resource identifier (ID) to indicate a corresponding TRP and a corresponding transmit direction of a plurality of transmit directions. The UE may, for each transmit direction of the plurality of transmit directions, determine an average signal quality measurement based on individual signal quality measurements in multiple receive directions. The UE may select, for reporting to the gNB, a subset of the average signal quality measurements to ensure that the average signal quality measurements excluded from the subset are less than or equal to a minimum value of the average signal quality measurements in the subset.