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公开(公告)号：US11483842B2
公开(公告)日：2022-10-25
申请号：US16067929
申请日：2016-12-23
Applicant: Apple Inc.
Inventor： Alexei Davydov , Gregory V. Morozov , Victor Sergeev
IPC: H04W72/08 , H04B7/06 , H04L5/00 , H04B7/0417
Abstract: Techniques for measuring CSI (Channel State Information) based on beamformed CSI-RS having reduced overhead are discussed. One example embodiment configured to be employed in a UE (User Equipment) comprises a memory; and one or more processors configured to: process higher layer signaling indicating one or more CSI-RS resources associated with a plurality of REs (Resource Elements) comprising a RE for each CSI-RS resource for each of one or more CSI-RS APs (Antenna Ports) in each of a plurality of continuous PRBs (physical resource blocks); process additional higher layer signaling comprising one or more CSI-RS parameters that indicate a subset of the plurality of REs associated with a beamformed CSI-RS transmission; decode one or more CSI-RSs from the indicated subset; and measure one or more CSI parameters based on the decoded one or more CSI-RSs.
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公开(公告)号：US11375475B2
公开(公告)日：2022-06-28
申请号：US16632416
申请日：2018-07-26
Applicant: Apple Inc.
Inventor： Dae Won Lee , Seunghee Han , Gregory Vladimirovich Morozov , Alexei Davydov , Yongjun Kwak
Abstract: A user equipment (UE) can include processing circuitry configured to decode physical broadcast channel (PBCH) information received from a base station (BS). The decoded PBCH information includes a scrambled PBCH payload and an unscrambled bit sequence. A scrambling sequence is generated based on time information signaling within the unscrambled bit sequence. The scrambled PBCH payload is de-scrambled using the scrambling sequence, to obtain master information block (MIB) information. System information block (SIB) information is decoded based on the MIB information. The decoded PBCH information includes cyclic redundancy check (CRC) information. The scrambled PBCH payload and the unscrambled bit sequence can be verified based on the CRC information. The time information signaling includes one or more bits of a system frame number (SFN).
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公开(公告)号：US20220191906A1
公开(公告)日：2022-06-16
申请号：US17441830
申请日：2020-05-01
Applicant: Apple Inc.
Inventor： Avik Sengupta , Bishwarup Mondal , Debdeep Chatterjee , Alexei Davydov
Abstract: Systems, devices, and techniques for adjusting a user equipment (UE) processing time parameter in a wireless communication system that include transmission and reception points (TRPs) are described. A described technique performed by UE includes receiving a first physical downlink shared channel (PDSCH) from a first TRP corresponding to a first scheduling physical downlink control channel (PDCCH) and a second PDSCH from a second TRP corresponding to a second scheduling PDCCH. The technique further includes transmitting a first hybrid automatic repeat request acknowledgement (HARQ-ACK) message and a second HARQ-ACK message based on the first PDSCH and the second PDSCH in accordance with a first processing time parameter and a second processing time parameter, respectively. The first processing time parameter can be based on a PDSCH mapping type, a processing capability of the UE, and one or more timing characteristics of the first PDSCH and the second PDSCH.
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公开(公告)号：US20220158794A1
公开(公告)日：2022-05-19
申请号：US17437809
申请日：2020-05-29
Applicant: Apple Inc.
Inventor： Yushu Zhang , Gang Xiong , Alexei Davydov , Yingyang Li , Guotong Wang
Abstract: Apparatuses, systems, and methods for multiplexing of PUCCH for beam failure recovery and other signals. A UE may determine a transmission dropping rule and a transmission power scaling rule for a PUCCH which is dedicatedly configured for secondary BFR transmission, such as a PUCCH-BFR, when it is multiplexed with BFR multiplexed with at least one other signal at least one other signal. The PUCCH-BFR and the at least one other signal may be multiplexed in a CC or in multiple CCs. The UE may determine a transmission dropping rule, e.g., so that UE can transmit an uplink signals with higher priority and drop the other uplink signal with lower priority to avoid beam collisions. The UE may determine a transmission power scaling rule, e.g., so the UE may scale transmission power within a CC and/or across CCs. The UE may multiplex the PUCCH-BFR with the at least one other signal according to the rules.
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155.发明授权公开(公告)号：US11336423B2
公开(公告)日：2022-05-17
申请号：US16786953
申请日：2020-02-10
Applicant: APPLE INC.
Inventor： Alexei Davydov , Gregory Morozov , Alexander Maltsev , Vadim Sergeyev , Ilya Bolotin
IPC: H04L5/14 , H04W4/70 , H04W76/11 , H04W76/40 , H04L1/00 , H04L27/26 , H04L5/00 , H04W52/14 , H04B7/024 , H04B7/0456 , H04W52/24 , H04W4/06 , H04W24/02 , H04W72/04 , H04W72/08 , H04J3/12 , H04W68/02 , H04J11/00 , H04L1/18 , H04W56/00 , H04B7/06 , H04W72/02 , H04W84/14 , H04W52/34 , H04W88/02 , H04W88/08 , H04W72/12
Abstract: Technology for a user equipment (UE) operable to adjust a receiver timing is disclosed. The UE can decode a plurality of channel-state information reference signals (CSI-RSs) received from a plurality of cooperating nodes, wherein the plurality of cooperating nodes are included in a coordination set of a Coordinated MultiPoint (CoMP) system. The UE can generate a plurality of received RS timings from the plurality of CSI-RSs, wherein the received RS timings represent timings from the plurality of cooperating nodes. The UE can determine a composite received RS timing from the plurality of received RS timings. The UE can adjust the receiver timing based on the composite received RS timing.
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Patent Agency Ranking
公开(公告)号：US20220149922A1
公开(公告)日：2022-05-12
申请号：US17437804
申请日：2020-05-08
Applicant: Apple Inc.
Inventor： Guotong Wang , Yushu Zhang , Alexei Davydov , Gang Xiong
Abstract: Apparatuses, systems, and methods for providing beam information for secondary cell beam failure recovery in a wireless communication system. A wireless device and a cellular base station may establish a wireless link, according to which the wireless device may be configured to communicate using a primary cell and a secondary cell. The wireless device may detect beam failure on the secondary cell. The wireless device may send an indication of the beam failure recovery to the cellular base station. The wireless device may receive information configuring candidate transmit beam reference signals for performing beam recovery on the secondary cell. The wireless device may perform beam identification and report on any new transmit beam(s) identified by the wireless device.
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公开(公告)号：US11297691B2
公开(公告)日：2022-04-05
申请号：US16603171
申请日：2018-05-01
Applicant: Apple Inc.
Inventor： Victor Sergeev , Seunghee Han , Feng Xue , Alexei Davydov , Gregory Morozov
Abstract: Embodiments of interference coordination for aerial vehicle user equipment (UE) are described. In some embodiments, a base station (BS) is configured to select a subset of time-frequency resources dedicated for use in serving aerial vehicle UEs and communicate with the aerial vehicle UEs via the subset of time-frequency resources. In some embodiments, the BS may transmit signaling to a neighbor BS that indicates the BS has dedicated the subset of time-frequency resources for serving aerial vehicle UEs and the subset of time-frequency resources to be used. The BS may receive an indication from the neighbor BS that a neighbor BS is to dedicate the subset of time-frequency resources to serve aerial vehicle UE, and based on the indication, the BS may reduce transmission activities in the subset of time-frequency resources, including refraining from transmitting or reducing an amount of information or power level of signaling to the aerial vehicle UEs.
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公开(公告)号：US20220085940A1
公开(公告)日：2022-03-17
申请号：US17423284
申请日：2020-01-22
Applicant: Apple Inc.
Inventor： Gang XIONG , Alexei Davydov , Yushu Zhang , Hong He , Daewon Lee , Jie Zhu
Abstract: Some embodiments of this disclosure include apparatuses and methods for physical downlink control channel design for a discrete Fourier Transform-spread-orthogonal frequency division multiplexing (DFT-s-OFDM) waveform. The apparatuses and methods can include at least operating a base station (BS) to generate one or more physical downlink control channels (PDCCH) in a time division multiplexing (TDM) manner using a Discrete Fourier Transform-spread-orthogonal frequency division multiplexing (DFT-s-OFDM) waveform, generate a demodulation reference signal (DMRS) which is multiplexed in the TDM manner with the one or more PDCCH, and transmit the one or more PDCCH and the DMRS to a user equipment (UE).
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公开(公告)号：US20220077982A1
公开(公告)日：2022-03-10
申请号：US17419426
申请日：2020-01-07
Applicant: Apple Inc.
Inventor： Yushu Zhang , Bishwarup Mondal , Alexei Davydov , Guotong Wang , Avik Sengupta
Abstract: The present disclosure provides systems and methods for mapping transmission configuration indication (TCI) states to demodulation reference signal (DMRS) ports groups in a wireless network. For instance, a TCI state to DMRS ports group mapping of a user equipment (UE) can be determined. Each DMRS port in a DMRS ports group shares a quasi-co-location (QCL) assumption. The TCI state to DMRS ports group mapping comprises multiple TCI state groups. The TCI state to DMRS ports group mapping corresponds each TCI state group to one or more DMRS ports groups. A TCI state group from the DMRS ports group mapping can be selected for the UE. Data indicative of the selected TCI state group and the corresponding one or more DMRS ports groups can be provided to the UE based at least in part on the TCI state group from the DMRS ports group mapping.
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公开(公告)号：US20220069882A1
公开(公告)日：2022-03-03
申请号：US17510139
申请日：2021-10-25
Applicant: Apple Inc.
Inventor： Yushu Zhang , Huaning Niu , Wook Bong Lee , Alexei Davydov , Guotong Wang
Abstract: Systems and methods of beam reporting for multiple DL processes are described. A UE receives a beam management processes configuration that provides information about beam management reference signals for beam management procedures. The UE transmits a UE capability report that indicates beam management capabilities of the UE and, later, an indication of whether the UE intends to engage in beam refinement. The UE measures the beam management reference signals and receives a beam reporting message that indicates at least one of the beam management procedures to report. In response, the UE transmits the beam report. The beam report contains beam management reference signal measurements of the beam management procedures indicated by the beam reporting message.
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