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公开(公告)号：US20230085207A1
公开(公告)日：2023-03-16
申请号：US18053327
申请日：2022-11-07
发明人： Seigo NAKAO , Daichi IMAMURA , Katsuhiko HIRAMATSU
摘要： A radio communication device capable of randomizing both inter-cell interference and intra-cell interference. In this device, a spreading section primarily spreads a response signal in a ZAC sequence set by a control unit. A spreading section secondarily spreads the primarily spread response signal in a block-wise spreading code sequence set by the control unit. The control unit controls the cyclic shift amount of the ZAC sequence used for the primary spreading in the spreading section and the block-wise spreading code sequence used for the secondary spreading in the spreading section according to a set hopping pattern. The hopping pattern set by the control unit is made up of two hierarchies. An LB-based hopping pattern different for each cell is defined in the first hierarchy in order to randomize the inter-cell interference. A hopping pattern different for each mobile station is defined in the second hierarchy to randomize the intra-cell interference.
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公开(公告)号：US20230060370A1
公开(公告)日：2023-03-02
申请号：US17975525
申请日：2022-10-27
摘要： An apparatus (e.g., a user equipment (UE)) maps a plurality of mutually orthogonal sequences to each of a plurality of physical resource blocks (PRBs) within an interlace. The apparatus then performs a physical uplink control channel (PUCCH) transmission in a New Radio unlicensed spectrum (NR-U). The apparatus also receives an assignment of a set of sequences for each PRB of the plurality of PRBs from a wireless network. In response, the apparatus performs an uplink control information (UCI) transmission via the PUCCH in the NR-U.
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公开(公告)号：US11595184B2
公开(公告)日：2023-02-28
申请号：US16322028
申请日：2016-08-11
发明人： Xiaohan Xia , Lilei Wang , Masayuki Hoshino , Hidetoshi Suzuki
摘要： Provided are a base station, user equipment and wireless communication method related to RS collision cancellation in full duplex communication. A base station comprises: circuitry operative to perform at least one of a first processing and a second processing on downlink signals to be transmitted on a physical resource unit in a full duplex mode corresponding to one Transmission Time Interval (TTI); a transmitter operative to transmit the processed downlink signals on the physical resource unit to a first user NO equipment in a TTI; and a receiver operative to receive uplink signals on the physical resource unit from a second user equipment, wherein the first processing is use to be performed such that Code Division Multiplexing (CDM) is applied between the downlink signal and the uplink signal assigned on each of at least part of collided resource elements in the physical resource unit, each of the collided resource elements being assigned with both a downlink signal and an uplink signal at least one of which is a reference signal, and the second processing comprises suppressing at least part of the downlink signals assigned on the resource elements assigned with uplink reference signals thereon in the collided resource elements.
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公开(公告)号：US11588538B2
公开(公告)日：2023-02-21
申请号：US17396145
申请日：2021-08-06
发明人： Lei Chen , Lei Chen , Su Huang , Zhenyu Shi
IPC分类号： H04J13/00 , H04B7/08 , H04B17/318 , H04L5/00 , H04W72/04
摘要： This application provides a beam information obtaining method and an apparatus, relates to the field of communications technologies, and resolves a problem that resources of positioning reference signals are wasted because the positioning reference signals need to be omnidirectionally sent because of an unknown direction, of a terminal, caused by use of a beam, when the terminal is positioned in, e.g., a 5G system. The method in this application resolves the problem and saves overheads of sending a reference signal. The method includes: The terminal receives a beam information request sent by a location management device, where the beam information request is used to request the terminal to provide measurement information of a downlink beam. The terminal obtains beam information, where the beam information includes information about a reference signal that is sent by at least one network device and that is measured by the terminal.
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公开(公告)号：US11585889B2
公开(公告)日：2023-02-21
申请号：US16512267
申请日：2019-07-15
摘要： A method and apparatus for selecting frequency modulated continuous wave waveform parameters for multiple radar coexistence by a user equipment is described. The user equipment may transmit a radar waveform consisting of a number of chirps, with each chirp having a same duration. The user equipment may vary waveform parameters of the radar waveform for at least a subset of the number of chirp, where the waveform parameters may be chosen from a codebook comprising at least one codeword of parameters. Reflected radar waveforms are received and processed where the processing includes applying a fast time discrete Fourier transform to reflected radar waveforms to produce a one dimension peak in a time delay dimension for each reflected waveform; and applying a slow time discrete Fourier transform to the reflected radar waveforms, where peaks for the reflected waveforms are added.
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公开(公告)号：US20230038818A1
公开(公告)日：2023-02-09
申请号：US17970772
申请日：2022-10-21
摘要： A method and user equipment (UE) are provided. An assistance request is transmitted from a first UE to at least one second UE. Assistance information including an indication of a set of one or more resources for transmission is received by the first UE, from the at least one second UE. It is determined that the set includes a reserved resource. At least one resource, other than the reserved resource, is selected from the set of one or more resources, for transmission by the first UE.
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公开(公告)号：US11563610B2
公开(公告)日：2023-01-24
申请号：US17252959
申请日：2019-09-20
申请人： Intel Corporation
发明人： Gang Xiong , Gregory V. Morozov , Jie Zhu , Yushu Zhang , Dae Won Lee
摘要： A device of a New Radio (NR) User Equipment (UE), a method and a machine readable medium to implement the method. The device includes a Radio Frequency (RF) interface, and processing circuitry coupled to the RF interface, the processing circuitry to: encode for transmission, to a User Equipment (UE), a Synchronization Signal Block (SSB) including a Physical Broadcast Channel (PBCH) and a channel estimation signal that is time division multiplexed with the PBCH, the channel estimation signal to allow the UE to estimate a channel for the PBCH and including one of a Secondary Synchronization Signal (SSS), a Demodulation Reference Signal (DMRS) or a Phase Tracking Reference Signal (PT-RS); and apply Discrete Fourier Transform-spread-Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) to the PBCH prior to sending the SSB to the RF interface for transmission.
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公开(公告)号：US11558832B2
公开(公告)日：2023-01-17
申请号：US16959445
申请日：2019-01-02
发明人： Kai Wu , Peng Sun , Xueming Pan
IPC分类号： H04W72/04 , H04W56/00 , H04W76/28 , H04W76/11 , H04W76/27 , H04J13/00 , H04W52/02 , H04W68/00 , H04L101/654
摘要： The present disclosure provides a time-and-frequency synchronization method, a network device, and a terminal. The time-and-frequency synchronization method for the terminal includes: subsequent to determining that the terminal in an idle state or a DRX state needs to be woken up to receive a downlink signal, receiving a physical signal for time-and-frequency synchronization from the network device; and performing time-and-frequency synchronization in accordance with the physical signal.
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公开(公告)号：US11552737B1
公开(公告)日：2023-01-10
申请号：US16423624
申请日：2019-05-28
发明人： Steve J Shattil
IPC分类号： H04B7/02 , H04B7/14 , H04L1/06 , H04L12/707 , H04L27/26 , H04J13/00 , H04L45/24 , H04B7/026 , H04L1/00 , H04W72/04 , H04L5/00 , H04W52/34
摘要： In a multiuser (MU) multiple antenna system (MAS), a central processing unit is communicatively coupled to multiple distributed wireless terminals (WTs) via a network. The central processing unit processes channel measurements indicative of channel conditions between the multiple distributed WTs and a plurality of user devices and selects a plurality of WTs from the multiple distributed WTs to enhance channel space diversity within the MU-MAS. The central processing unit calculates (Multiple Input, Multiple Output) MIMO weights from the channel measurements for precoding a plurality of data streams that are transmitted concurrently from the plurality of WTs to the plurality of users, wherein the MIMO weights provide for a plurality of independent MIMO channels.
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公开(公告)号：US11552673B2
公开(公告)日：2023-01-10
申请号：US17303593
申请日：2021-06-02
IPC分类号： H04B1/7115 , H04B7/12 , H04W4/10 , H04B17/336 , H04B1/715 , H04B7/0456 , H04B7/06 , H04B7/08 , H04L1/00 , H04B7/026 , H04L27/26 , H04W24/08 , H04J13/00 , H04J11/00 , H04B1/713
摘要： A method is provided for use in a cooperative broadcast multi-hop network that employs broadcast flood routing and multi-hop transmission using a direct-sequence spread-spectrum (DSSS) waveform. DSSS signals are received from other nodes on different channels. ASSW is performed to detect and remove interference signals received on the different channels. MDFT analysis banks each receive a beam in the spectral domain that can be channelized to generate a channelized beam that comprises multiple spectral channels. An adaptive interference mitigation space-frequency whitener module can then be applied to remove interference and generate interference-mitigated spatial-spectral domain channels. MDFT synthesis banks can each perform a MDFT synthesis operation on one of the spatial-spectral domain channels. A multi-user RAKE receiver can then combine the interference mitigated time-domain channelized signals to generate a subset (1 . . . F) of fingers that combine components of transmissions directly received from the other nodes and multipath components of those transmissions.
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