-
公开(公告)号：US20220216964A1
公开(公告)日：2022-07-07
申请号：US17430857
申请日：2020-02-16
Applicant: Apple Inc.
Inventor： Bishwarup MONDAL , Avik SENGUPTA , Alexei DAVYDOV , Yushu ZHANG
IPC: H04L5/00
Abstract: Some embodiments of this disclosure include systems, apparatuses, methods, and computer-readable media for a single downlink control information (DCI) signal that supports multi-transmission reception point (TRP) transmissions from different TRPs (e.g., different 5G Node Bs or different antenna panels.) A user equipment (UE) receives a single DCI signal that includes a first transmission configuration indicator (TCI) state of a first TRP, a second TCI state of a second TRP, and a demodulation reference signal (DMRS) port indication value. The UE uses the DMRS port indication value to determine a first DMRS port and a first code division multiplexing (CDM) group of the first TCI state and a second DMRS port and a second CDM group of the second TCI state. The UE receives a multi-Physical Downlink Shared Channel (PDSCH) signal that includes multi-TRP transmissions, and uses the above determinations to decode data from the first and/or the second TCI states.
-
12.发明申请公开(公告)号：US20220116252A1
公开(公告)日：2022-04-14
申请号：US17421984
申请日：2020-01-09
Applicant: Apple Inc.
Inventor： Gang XIONG , Yushu ZHANG , Daewon LEE , Alexei DAVYDOV , Seunghee HAN , Jie Zhu
Abstract: For single carrier based waveform, Discrete Fourier Transform-spread-OFDM (DFT-s-OFDM) and single carrier with a frequency domain equalizer (SC-FDE) can be considered for both DL and UL. For OFDM based transmission scheme including DFT-s-OFDM, a cyclic prefix (CP) is inserted at the beginning of each block, where the last data symbols in a block is repeated as the CP. Typically, the length of CP exceeds the maximum expected delay spread in order to overcome the inter-symbol interference (ISI). For SC-FDE transmission scheme, a known sequence (guard interval (GI), unique word (UW), etc.) can be inserted at both the beginning and end of one block. Further, a linear equalizer in the frequency domain can be employed to reduce the receiver complexity. Compared to OFDM, SC-FDE transmission scheme can reduce Peak to Average Power Ratio (PAPR) and thus allow the use of less costly power amplifier.
-
公开(公告)号：US20220116247A1
公开(公告)日：2022-04-14
申请号：US17280461
申请日：2019-09-26
Applicant: Apple Inc.
Inventor： Avik SENGUPTA , Bishwarup MONDAL , Alexei DAVYDOV , Sameer PAWAR
Abstract: Systems, apparatuses, methods, and computer-readable media are provided for user equipment (UE) idle mode operations. In embodiments, a UE wakes up more than once during a Discontinuous Reception (DRX) cycle. Inter-frequency measurement requirements may be relaxed based on DRX cycle length. Some embodiments include radiofrequency (RF) circuitry warm-up overhead reduction by on-duration separation with RF circuitry switching pattern adaption. Some embodiments include and RF circuitry warm-up overhead reduction by adaptive synchronization signal block (SSB) reference symbol down-selection. Other embodiments may be described and/or claimed.
-
公开(公告)号：US20240097767A1
公开(公告)日：2024-03-21
申请号：US18520202
申请日：2023-11-27
Applicant: Apple Inc.
Inventor： Alexei DAVYDOV , Sameer PAWAR , Wook Bong LEE , Yushu ZHANG , Victor SERGEEV , Joonyoung CHO , Dmitry DIKAREV
IPC: H04B7/06
CPC classification number: H04B7/0658 , H04B7/0626 , H04B7/0632 , H04B7/0634
Abstract: Herein described are apparatuses, systems, and methods for measurement and reporting of channel state information within wireless network systems. In embodiments, an apparatus for a user equipment (UE) may include memory to store a rank indicator (RI), a precoding matrix index (PMI), and a channel quality indicator (CQI) of channel state information (CSI) for the UE. The apparatus may further include circuitry to concatenate the RI, the PMI, and the CQI to produce a concatenated CSI element, generate a CSI report that includes the concatenated CSI element, and cause the CSI report to be transmitted to a base station within a single slot. Other embodiments may be described and/or claimed.
-
公开(公告)号：US20230089326A1
公开(公告)日：2023-03-23
申请号：US17993511
申请日：2022-11-23
Applicant: Apple Inc.
Inventor： Victor SERGEEV , Alexei DAVYDOV , Bishwarup MONDAL , Gregory MOROZOV , Dmitry DIKAREV
IPC: H04B7/06 , H04B7/0456
Abstract: An approach is described that includes receiving a CSI report, where the CSI report includes a channel quality indicator (CQI), a rank indicator (RI), and a precoding matrix indicator (PMI). The approach further includes constructing a precoding matrix based on a linear combination of a plurality of mutually orthogonal digital Fourier transformation (DFT) spatial beams, and determining a number of bits for the PMI of the precoding matrix. The approach also includes determining a space frequency matrix based, at least in part, on the number of bits for the PMI and the precoding matrix, and compressing the space frequency matrix. Finally, the approach includes determining a compressed PMI based, at least in part, on the space frequency matrix.
-
Patent Agency Ranking
16.发明申请公开(公告)号：US20220173950A1
公开(公告)日：2022-06-02
申请号：US17442502
申请日：2020-04-17
Applicant: Apple Inc.
Inventor： Avik Sengupta , Alexei DAVYDOV , Sameer Pawar , Guotong Wang , Gregory Morozov
Abstract: Methods, systems, apparatus, and computer programs, for providing uplink control information to an access node. In one aspect, the method can include actions of determining, by a UE, a time-domain orthogonal cover code (OCC) for a PUCCH message of a UE to multiplex the PUCCH transmission with one or more PUCCH messages from one or more other UEs, and encoding, by the UE, the PUCCH message for transmission by the UE using the OCC.
-
公开(公告)号：US20220132326A1
公开(公告)日：2022-04-28
申请号：US17439777
申请日：2020-05-13
Applicant: Apple Inc.
Inventor： Guotong WANG , Yushu ZHANG , Alexei DAVYDOV , Bishwarup MONDAL , Gang XIONG
Abstract: Techniques are provided for selecting a spatial relation for a physical uplink shared channel (PUSCH) transmission by a user equipment (UE) operating in a multi-transmission reception point (TRP) multi-antenna panel environment. For example, the UE prepares a PUSCH transmission intended for a first TRP of a plurality of TRPs available to the UE in the wireless network, and determines a first antenna port group of a plurality of antenna port groups of the UE that is more directionally aligned with the first TRP than other antenna port groups of the plurality of antenna port groups. The UE further transmits the PUSCH transmission to the first TRP via the first antenna port group using a default spatial relation used for a physical uplink control channel (PUCCH) communication with the first TRP via the first antenna port group.
-
公开(公告)号：US20220095235A1
公开(公告)日：2022-03-24
申请号：US17419597
申请日：2020-02-18
Applicant: Apple Inc.
Inventor： Yushu ZHANG , Alexei DAVYDOV , Gang XIONG , Guotong WANG , Hong HE
Abstract: Some embodiments of this disclosure include apparatuses and methods for uplink panel selection with power saving. In some embodiments, user equipment (UE) may experience a positional change. In response, the UE may deactivate a first communication panel to save power and activate a second communication panel. The UE may then transmit a status message to a communication node indicating the activation and/or deactivation. The node may then register this activation and/or deactivation. In some embodiments, the node may monitor uplink slots from the first and second communication panel to identify the activation and deactivation. For example, if the node detects an absence of an uplink signal within a slot threshold, the node may identify the panel as being deactivated. The node may establishing communications with another panel based on a detected signal and/or the status message.
-
公开(公告)号：US20220085931A1
公开(公告)日：2022-03-17
申请号：US17421584
申请日：2020-01-11
Applicant: Apple Inc.
Inventor： Bishwarup MONDAL , Debdeep CHATTERJEE , Fatemeh HAMIDI-SEPEHR , Alexei DAVYDOV
Abstract: Disclosed are systems and methods of selecting physical downlink control channel (PDCCH) candidates for non-coherent joint transmission (NC-JT) in a wireless network. For instance, first and second sets of ControlResourceSet and SearchSpace parameters can be configured for a UE. The first and second sets of ControlResourceSet and SearchSpace parameters are configured on a first downlink (DL) component carrier to enable NC-JT. A control channel element (CCE) limit can be determined for the first and second sets of ControlResourceSet and SearchSpace parameters. One or more PDCCH candidates can then be selected for the first and second sets of ControlResourceSet and SearchSpace parameters based at least in part on the determined CCE limits. NC-JT communication including at least a first communication from a first transmission and reception point (TRP), and a second communication from a second TRP can then be received.
-
公开(公告)号：US20240073942A1
公开(公告)日：2024-02-29
申请号：US18472545
申请日：2023-09-22
Applicant: Apple Inc.
Inventor： Alexei DAVYDOV , Seunghee HAN , Gang XIONG , Gregory V. MOROZOV , Yushu ZHANG , Joonyoung CHO , Dae Won LEE , Yongjun KWAK
CPC classification number: H04W74/006 , H04L5/0091 , H04W74/0833
Abstract: Described is an apparatus of a User Equipment (UE) operable to communicate with a fifth-generation Evolved Node-B (gNB) on a wireless network. The apparatus may comprise a first circuitry and a second circuitry. The first circuitry may be operable to process a message comprising an indicator to indicate a number of contention based physical random access channel (PRACH) preambles within a PRACH occasion per Synchronization Signal Block (SSB). The second circuitry may be operable to generate a first PRACH occasion, based on the indicator.
-
-
-
-
-
-
-
-
-
Search Results
37
records
(took 0.019 seconds)
