公开(公告)号：US20210409111A1

公开(公告)日：2021-12-30

申请号：US17447463

申请日：2021-09-13

Applicant: APPLE INC.

Inventor： Dae Won Lee ,  Seunghee Han ,  Gregory V. Morozov ,  Alexei Davydov ,  Hong He

IPC: H04B7/26 ,  H04L27/26 ,  H04W56/00

Abstract: Systems and methods for synchronizing communications between a User Equipment (UE) and Base Station (BS) using a synchronization signal structure. The synchronization signal structure can include a sequence of Synchronization Signals (SS) including repetitions of a synchronization signal burst set. The synchronization signal burst set can include a plurality of synchronization signal bursts. The synchronization signal bursts can include a plurality of synchronization signal blocks, wherein the synchronization signal blocks can include a plurality of Synchronization Signals (SS).

公开(公告)号：US20210360599A1

公开(公告)日：2021-11-18

申请号：US17388325

申请日：2021-07-29

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Wook Bong Lee ,  Hong He ,  Seung Hee Han ,  Honglei Miao

IPC: H04W72/04 ,  H04B7/06 ,  H04W24/08 ,  H04L5/00 ,  H04B7/08

Abstract: Techniques for transmitting and receiving beamformed transmission(s) of a common search space of a DL (Downlink) control channel are discussed. One example embodiment that can be employed at a UE (User Equipment) comprises processing circuitry configured to: select a set of receive beamforming weights for a DL (Downlink) control channel; and decode one or more control channel sets from a common search space of the DL control channel, wherein each control channel set of the one or more control channel sets is mapped to an associated symbol of one or more symbols of a slot, wherein each control channel set of the one or more control channel sets has an associated transmit beamforming, and wherein each control channel set of the one or more control channel sets comprises a common set of control information.

公开(公告)号：US11121897B2

公开(公告)日：2021-09-14

申请号：US16125506

申请日：2018-09-07

Applicant: APPLE INC.

Inventor： Gang Xiong ,  Alexei Davydov ,  Alexey Khoryaev ,  Mikhail S. Shilov ,  Seung Hee Han ,  Yushu Zhang ,  Joonyoung Cho

IPC: H04L27/26 ,  H04W52/14 ,  H04L5/00 ,  H04W72/04

Abstract: Technology for a user equipment (UE) configured for communication of sounding reference signal (SRS) resources is disclosed. The UE can decode a radio resource control (RRC) signal indicating an SRS to transmit with a physical uplink control channel (PUCCH), wherein the PUCCH and the SRS are quasi co located (QCLed) based on a spatial received parameter. The UE can encode an SRS for transmission using the spatial received parameter. The UE can encode uplink control information (UCI) for transmission in the PUCCH using the spatial received parameter. The UE can have a memory interface configured to send to a memory the spatial received parameter.

公开(公告)号：US20210281368A1

公开(公告)日：2021-09-09

申请号：US16465225

申请日：2018-08-13

Applicant: Apple Inc.

Inventor： Jeongho Jeon ,  Huaning Niu ,  Wenting Chang ,  Jinyu Zhang ,  Dae Won Lee ,  Alexei Davydov ,  Kyeongin Jeong ,  Candy Yiu

IPC: H04L1/20 ,  H04L5/00 ,  H04W72/04 ,  H04L27/26 ,  H04W56/00 ,  H04W24/08

Abstract: A user equipment (UE) may assess a radio link quality of a plurality of frames for communication, via the interface to the RF circuitry, with a radio access network (RAN) node. When the radio link quality of a frame, of the plurality of frames, is below an out-of-sync (OOS) threshold, the UE may indicate that the frame is OOS. When the radio link quality of a frame, of the plurality of frames, is above an in-sync (IS) threshold that the frame is IS. Additionally, or alternatively, the UE may process information, received from the RAN node indicating a partial subframe, of a subframe, to be used to transmit uplink control information (UCI) to the RAN node. The UE may also perform UCI mapping for using of the partial subframe to transmit UCI via a physical uplink control channel (PUSCH), and proceed by using the partial subframe to communicate the UCI to the RAN node.

公开(公告)号：US11082966B2

公开(公告)日：2021-08-03

申请号：US16467549

申请日：2017-06-05

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Wook Bong Lee ,  Hong He ,  Seung Hee Han ,  Honglei Miao

IPC: H04W72/04 ,  H04B7/06 ,  H04W24/08 ,  H04L5/00 ,  H04B7/08

Abstract: Techniques for transmitting and receiving beamformed transmission(s) of a common search space of a DL (Downlink) control channel are discussed. One example embodiment that can be employed at a UE (User Equipment) comprises processing circuitry configured to: select a set of receive beamforming weights for a DL (Downlink) control channel; and decode one or more control channel sets from a common search space of the DL control channel, wherein each control channel set of the one or more control channel sets is mapped to an associated symbol of one or more symbols of a slot, wherein each control channel set of the one or more control channel sets has an associated transmit beamforming, and wherein each control channel set of the one or more control channel sets comprises a common set of control information.

公开(公告)号：US20210211329A1

公开(公告)日：2021-07-08

申请号：US17269370

申请日：2019-09-16

Applicant: Apple Inc.

Inventor： Zhibin Wu ,  Yushu Zhang ,  Alexei Davydov ,  Seunghee Han ,  Yeong-Sun Hwang

IPC: H04L25/02 ,  H04L5/00 ,  H04W76/27 ,  H04W8/24 ,  H04W72/04

Abstract: An apparatus configured to be employed in a gNodeB associated with a new radio (NR) communication system is disclosed. The apparatus comprises one or more processors configured to configure partial spatial reference information associated with at least one sounding reference signal (SRS) resource set of one or more SRS resource sets associated with a user equipment (UE), that forms a select SRS resource set. In some embodiments, the partial spatial reference information comprises information on a partial spatial reference resource configured for one or more SRS resources associated with the select SRS resource set, to be utilized by the UE to generate one or more SRS transmit beam patterns for transmitting the one or more SRS resources, respectively, such that the one or more SRS transmit beam patterns are in a spatial neighborhood of a beam pattern associated with the configured partial spatial reference resource.

公开(公告)号：US11057814B2

公开(公告)日：2021-07-06

申请号：US16584651

申请日：2019-09-26

Applicant: Apple Inc.

Inventor： Yujian Zhang ,  Mo-Han Fong ,  Pingping Zong ,  Alexei Davydov

IPC: H04L12/24 ,  H04L5/14 ,  H04W84/18 ,  H04W36/18 ,  H04W36/08 ,  H04W36/00 ,  H04W36/30 ,  H04W36/38 ,  H04W84/04 ,  H04W36/32

Abstract: User equipment (UE), an enhanced NodeB (eNB) and method of reducing handover latency are generally described. The UE may transmit measurement feedback to the eNB based on control signals. The UE may receive a reconfiguration message from the eNB or another eNB to the UE is attached. The reconfiguration message may contain reconfiguration information indicating whether or not a physical layer or layer 2 of the UE is to be reconfigured and/or a security key is to be updated. The reconfiguration information may be dependent on whether the handover is between eNBs controlled by a same entity and/or whether the handover comprises an intra-frequency transition. The UE or eNB may initiate handover of the UE. During handover the UE may avoid physical layer or layer 2 reconfiguration or the security key update. The security key and data for the UE may be provided directly between the eNBs.

公开(公告)号：US10951290B2

公开(公告)日：2021-03-16

申请号：US16172602

申请日：2018-10-26

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Victor Sergeev ,  Guotong Wang ,  Alexei Davydov ,  Gang Xiong

IPC: H04L27/26 ,  H04B7/06 ,  H04L5/00 ,  H04B7/0408 ,  H04L1/18 ,  H04W72/04 ,  H04W76/27 ,  H04L1/00 ,  H04L1/16

Abstract: Described is an apparatus of a User Equipment (UE) operable to communicate with an Evolved Node-B (eNB) on a wireless network. The apparatus may comprise a first circuitry and a second circuitry. The first circuitry may be operable to process a Downlink (DL) transmission carrying one or more Phase Tracking Reference Signal (PT-RSes). The second circuitry may be operable to generate an Uplink (UL) transmission carrying a Layer Indicator (LI) based at least on a number of PT-RS Antenna Ports (APs) associated with the PT-RSes.

公开(公告)号：US20210076360A1

公开(公告)日：2021-03-11

申请号：US16953769

申请日：2020-11-20

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Debdeep Chatterjee ,  Hong He ,  Gang Xiong ,  Hwan-Joon Kwon

IPC: H04W72/04 ,  H04W76/27 ,  H04L5/00 ,  H04W28/22 ,  H04L1/00

Abstract: An apparatus configured to be employed in a gNodeB associated with a new radio (NR) communication system that support resource sharing between NR physical downlink shared channel (PDSCH) and NR physical downlink control channel (PDCCH) is disclosed. The apparatus comprises a processing circuit configured to generate a PDSCH dynamic rate matching resource set configuration signal comprising information on one or more overlap resource sets, wherein each the one or more overlap resource sets comprises time-frequency resources on which any overlapping PDSCH may or may not be mapped, based on an indication provided within a PDSCH rate matching indicator signal. The apparatus further comprises a radio frequency (RF) interface, configured to provide the generated PDSCH dynamic rate matching resource set configuration signal, to an RF circuitry, in order to subsequently provide the PDSCH dynamic rate matching resource set configuration signal to a user equipment (UE), in order to enable the UE to identify the one or more overlap resource sets.

公开(公告)号：US10939423B2

公开(公告)日：2021-03-02

申请号：US15765778

申请日：2016-06-23

Applicant: APPLE INC

Inventor： Alexei Davydov ,  Seunghee Han ,  Victor Sergeev ,  Hong He ,  Christian Ibars Casas

IPC: H04W72/04 ,  H04L1/00 ,  H04L5/00 ,  H04M13/00 ,  H04W76/27 ,  H04L27/26 ,  H03M13/09 ,  H03M13/11 ,  H03M13/41 ,  H03M13/29 ,  H03M13/23 ,  H03M13/00

Abstract: Techniques for detecting puncturing of a first PDSCH (physical downlink shared channel) associated with a UE (user equipment) by a second PDSCH with a shorter TTI (transmission time interval) are discussed. A base station (e.g., Evolved NodeB or eNB) can configure the UE for potential puncturing and/or parameter(s) of the second PDSCH. The UE can detect puncturing of the first PDSCH based on the configuration, and can discard punctured symbols to mitigate interference from the second PDSCH.