公开(公告)号：US10771120B2

公开(公告)日：2020-09-08

申请号：US15074951

申请日：2016-03-18

申请人： Apple Inc.

发明人： Guangjie Li ,  Wenting Chang ,  Yushu Zhang

IPC分类号： H04B7/0413 ,  H04L25/03 ,  H04L25/02

摘要： Embodiments of the present disclosure describe systems, devices, and methods for preprocessing in a base station of a multiple-input multiple-output (MIMO) wireless system. In embodiments, remote radio unit (RRU) circuitry may control radio communication related to the MIMO wireless system, including applying a user equipment (UE)-specific spatial filter.

公开(公告)号：US10707929B2

公开(公告)日：2020-07-07

申请号：US15756991

申请日：2015-09-10

申请人： Apple Inc.

发明人： Wenting Chang ,  Xu Zhang ,  Yujun Chen ,  Jiansong Tian ,  Guangjie Li ,  Ye Wu ,  Feng Zhou

IPC分类号： H04B7/0452 ,  H04L25/02 ,  H04W28/06 ,  H04W8/00 ,  H04B7/08 ,  H04B7/0413 ,  H04L29/06 ,  H04L27/26 ,  H04W88/08

摘要： A method of processing signals in a radio processing apparatus of a base station may include obtaining a plurality of aggregated data symbols, wherein each of the plurality of aggregated data symbols corresponds to a receive terminal of a plurality of receive terminals of the base station and is composed of transmitted data symbols from a plurality of transmit terminals; applying a compression filter to the plurality of aggregated data symbols to reduce the plurality of aggregated data symbols into a plurality of isolated data symbols, the compression filter being based on channel estimates between the plurality of receive terminals and the plurality of transmit terminals; and transmitting the plurality of isolated data symbols to a baseband processing apparatus of the base station.

公开(公告)号：US20200186263A1

公开(公告)日：2020-06-11

申请号：US16787344

申请日：2020-02-11

申请人： Apple Inc.

发明人： Yushu Zhang ,  Yuan Zhu ,  Gang Xiong ,  Huaning Niu ,  Wenting Chang

IPC分类号： H04B17/327 ,  H04L5/00 ,  H04B7/06

摘要： Devices and methods of simultaneous data reception and measurement are generally described. A UE transmits to an eNB antenna capacity and receives a Beamformed Reference Signal (BRS) configuration in response. Beamformed signals from the eNB include a BRS subframe in accordance with the BRS configuration. The BRS subframe has a BRS whose structure depends on the UE antenna capacity. If the UE has a single antenna panels, neither an EPDCCH nor a PDSCH for the UE is in the BRS frame. If the UE has a single antenna panels and multiple ports or multiple antenna panels, the BRS may contain an EPDCCH or PDSCH for the UE as different ports or antenna panels may be assigned different functionality. The UE measures BRS Received Power (BRS-RP) of the BRS, transmits a BRS report based on the BRS-RP and selects an optimal beam based on BRS-RPs from BRSs of the beams.

公开(公告)号：US20200178288A1

公开(公告)日：2020-06-04

申请号：US16604141

申请日：2018-07-12

申请人： APPLE INC.

发明人： Wenting Chang ,  Jeongho Jeon ,  Huaning Niu ,  Jinyu Zhang ,  Salvatore Talarico

IPC分类号： H04W72/12 ,  H04L5/00 ,  H04W76/27 ,  H04L1/18 ,  H04W52/58 ,  H04W72/04 ,  H04L1/00

摘要： Technology for a user equipment (UE) operable to decode grant Self-defer less downlink control information (G-D 5 CI) received from a Next Generation NodeB (gNB) is disclosed. The UE can decode the G-DCI received from the gNB in a MulteFire system. The UE can identify grant less uplink DCI components included in the G-DCI. The UE can perform a grant less uplink transmission with the gNB based on the grant less uplink DCI components in the G-DCI received from the gNB.

公开(公告)号：US12081302B2

公开(公告)日：2024-09-03

申请号：US17947390

申请日：2022-09-19

申请人： Apple Inc.

发明人： Salvatore Talarico ,  Huaning Niu ,  Wenting Chang

IPC分类号： H04B1/713 ,  H04B7/06 ,  H04L5/00 ,  H04L27/00 ,  H04W16/14 ,  H04W24/10 ,  H04L25/02 ,  H04W4/70 ,  H04W74/0808 ,  H04W76/27

CPC分类号： H04B7/0626 ,  H04B1/713 ,  H04B7/0632 ,  H04L5/001 ,  H04L5/0012 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0057 ,  H04L27/0006 ,  H04W16/14 ,  H04W24/10 ,  H04L25/0228 ,  H04W4/70 ,  H04W74/0808 ,  H04W76/27

摘要： Techniques described herein can facilitate Channel-State Information (CSI) measurement and feedback for communication in unlicensed spectrum or Sounding Reference Signal (SRS) transmission and/or channel-state estimation for communication in unlicensed spectrum. In an example, an apparatus is configured to be employed in a User Equipment (UE), and the apparatus comprises a Radio Frequency (RF) circuitry interface and processing circuitry configured to perform CSI measurement for communication in unlicensed spectrum. The apparatus further generates data for feedback according to the CSI measurement, and sends the data for feedback to RF circuitry via the RF circuitry interface. In an example, a frame structure of a data channel begins with a downlink (DL) transmission or soon after an initial signal. In an example, the CSI measurement includes measuring Channel Quality Information (CQI) for one or more sub-bands.

公开(公告)号：US11956169B2

公开(公告)日：2024-04-09

申请号：US17444022

申请日：2021-07-29

申请人： APPLE INC.

发明人： Qiaoyang Ye ,  Huaning Niu ,  Wenting Chang ,  Salvatore Talarico

IPC分类号： H04W16/14 ,  H04L5/00 ,  H04W4/70 ,  H04W48/10 ,  H04W74/0808

CPC分类号： H04L5/0048 ,  H04L5/0012 ,  H04W4/70 ,  H04W16/14 ,  H04W48/10 ,  H04W74/0808

摘要： Technology for a Next Generation NodeB (gNB) operable to communicate over an anchor channel for Unlicensed Internet of Things (U-IoT) is disclosed. The gNB can encode control information for transmission on two discovery reference signal (DRS) subframes to a user equipment (UE). The control information can be transmitted on an anchor channel having a set frequency for U-IoT in an adaptive frequency hopping system. The control information can include: a primary synchronization signal (PSS), a secondary synchronization signal (SSS), a physical broadcast channel (PBCH) transmission, and a system information block for MulteFire bandwidth reduced (SIB-MF-BR).

公开(公告)号：US11843440B2

公开(公告)日：2023-12-12

申请号：US17950530

申请日：2022-09-22

申请人： Apple Inc.

发明人： Wenting Chang ,  Gang Xiong ,  Yuan Zhu ,  Huaning Niu ,  Yushu Zhang

IPC分类号： H04B7/06 ,  H04W16/28 ,  H04L5/00 ,  H04W74/08

CPC分类号： H04B7/0695 ,  H04B7/0617 ,  H04L5/0023 ,  H04L5/0048 ,  H04W16/28 ,  H04W74/0833 ,  H04L5/0007

摘要： Described is an apparatus of an Evolved Node-B (eNB). The apparatus comprises a first circuitry, a second circuitry, and a third circuitry. The first circuitry associates a first Beam Reference Signal (BRS) for a first Transmit (Tx) beam having a first beamwidth with one or more second BRSes for one or more respectively corresponding second Tx beams having a second beamwidth. The second circuitry generates a first BRS transmission carrying the first BRS, and generates one or more second BRS transmissions carrying the one or more respectively corresponding second BRSes. The third circuitry provides information regarding the first BRS and the second BRSes to the second circuitry.

公开(公告)号：US11695518B2

公开(公告)日：2023-07-04

申请号：US17492633

申请日：2021-10-03

申请人： Apple Inc.

发明人： Gang Xiong ,  Hong He ,  Yushu Zhang ,  Wenting Chang ,  Yuan Zhu

IPC分类号： H04L1/18 ,  H04L1/1812 ,  H04L1/1607 ,  H04L1/1829 ,  H04L5/00 ,  H04L1/00 ,  H04W72/21 ,  H04W76/27 ,  H04W72/044 ,  H04W80/02

CPC分类号： H04L1/1819 ,  H04L1/00 ,  H04L1/1671 ,  H04L1/1812 ,  H04L1/1861 ,  H04L1/1864 ,  H04L5/0055 ,  H04L5/0057 ,  H04W72/046 ,  H04W72/21 ,  H04W76/27 ,  H04W80/02

摘要： Apparatus that sends uplink control information (UCI) from user equipment (UE) to a network node, generates elements of the UCI including at least one of hybrid automatic repeat request-acknowledgement (HARQ-ACK) feedback for one or more uplink (UL) resources, a scheduling request (SR), a channel state information (CSI) report and a beam related information report in response to a trigger set by the network node. The apparatus encodes the UCI elements for transmission via a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH) of the one or more UL resources. The one or more UL resources may be UL slots or UL portions of downlink-uplink (DL-UL) slots received from a network node.

公开(公告)号：US11622377B2

公开(公告)日：2023-04-04

申请号：US17368638

申请日：2021-07-06

申请人： APPLE INC.

发明人： Gang Xiong ,  Wenting Chang ,  Huaning Niu ,  Yushu Zhang ,  Yuan Zhu

IPC分类号： H04W72/50 ,  H04W76/27 ,  H04B7/06 ,  H04B7/08 ,  H04L5/00 ,  H04L27/26

摘要： Technology for a user equipment (UE) using a self-contained scheduling resource to communicate with an eNodeB within a wireless communication network is disclosed. The UE can select, at the UE, a selected eNodeB transmission (Tx) beam and a selected UE reception (Rx) beam based on a highest power beamforming reference signal (BRS) received power (BRS-RP). The UE can signal a transceiver of the UE to transmit to the eNodeB a scheduling request (SR), using the selected Rx beam, on a scheduling request (SR) resource in a self-contained subframe according to a time and frequency location of the selected eNodeB Tx beam. The UE can process an advanced physical downlink control channel (xPDCCH), received from the eNodeB, for an uplink (UL) grant using the selected UE RX beam.

公开(公告)号：US11388777B2

公开(公告)日：2022-07-12

申请号：US16605784

申请日：2018-05-15

申请人： Apple Inc.

发明人： Wenting Chang ,  Jinyu Zhang ,  Huaning Niu ,  Jeongho Jeon ,  Salvatore Talarico

IPC分类号： H04W88/06 ,  H04W76/11 ,  H04L1/00 ,  H04L1/16 ,  H04L1/18 ,  H04L5/00 ,  H04W16/14 ,  H04W72/04 ,  H04W72/12 ,  H04W74/08

摘要： Described is an apparatus of a User Equipment (UE). The apparatus may comprise a first circuitry and a second circuitry. The first circuitry may be operable to process a first Downlink Control Information (DCI) format 0A transmission indicating a Grant-less Uplink (GUL) activation. The first circuitry may also be operable to process a second DCI format 0A transmission indicating a GUL release. The second circuitry may be operable to generate one or more Uplink (UL) transmissions for an unlicensed spectrum of the wireless network after the GUL activation and before the GUL release.