公开(公告)号：US08345781B2

公开(公告)日：2013-01-01

申请号：US12442941

申请日：2006-09-29

Applicant: Alexander Maltsev ,  Alexey Rubstov ,  Alexei Davydov ,  Sergey Tiraspolsky ,  Andrey Pudeyev

Inventor： Alexander Maltsev ,  Alexey Rubstov ,  Alexei Davydov ,  Sergey Tiraspolsky ,  Andrey Pudeyev

IPC: H04L27/28

CPC classification number: H04L27/2608 ,  H04L1/20 ,  H04L27/0008

Abstract: A method and apparatus for determining a channel quality indicator (CQI) to be used in link adaptation for Orthogonal Frequency Division Multiplexing (OFDM) communications. In one embodiment of the invention, the CQI is based on a set of capacity values for subcarrier components in a received OFDM signal. In another embodiment, a minimum value from a running average of the set of capacity values is used to determine the CQI.

Abstract translation: 一种用于确定在正交频分复用（OFDM）通信的链路适配中使用的信道质量指示符（CQI）的方法和装置。 在本发明的一个实施例中，CQI基于接收的OFDM信号中的子载波分量的一组容量值。 在另一个实施例中，使用来自该组容量值的运行平均值的最小值来确定CQI。

公开(公告)号：US20120243638A1

公开(公告)日：2012-09-27

申请号：US13435842

申请日：2012-03-30

Applicant: Alexander Maltsev ,  Vadim Sergeyev ,  Alexei Davydov

Inventor： Alexander Maltsev ,  Vadim Sergeyev ,  Alexei Davydov

IPC: H04L7/04

CPC classification number: H04L27/2656 ,  H04B7/2126 ,  H04W16/28 ,  H04W48/08 ,  H04W52/0235 ,  H04W56/0015 ,  H04W72/0453 ,  H04W84/20 ,  Y02D70/00 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1246 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/168 ,  Y02D70/22 ,  Y02D70/446

Abstract: Communication signals using a first and a second frequency band in a wireless network is described herein. The first frequency band may be associated with a first beamwidth while the second frequency band may be associated with a second beamwidth. An apparatus may include receiver circuitry arranged to receive first signals in a first frequency band associated with a first beamwidth and second signals in a second frequency band associated with a second beamwidth, the first signals comprising a frame synchronization parameter and the second signals comprising frame alignment signals. The apparatus may further include processor circuitry coupled to the receiver circuitry, the processor circuitry arranged to activate or deactivate the receiver circuitry to receive the frame alignment signals based on the frame synchronization parameter. Other embodiments may be described and/or claimed.

Abstract translation: 这里描述了使用无线网络中的第一和第二频带的通信信号。 第一频带可以与第一波束宽度相关联，而第二频带可以与第二波束宽度相关联。 装置可以包括接收机电路，其被布置为接收与第一波束宽度相关联的第一频带中的第一信号，以及与第二波束宽度相关联的第二频带中的第二信号，所述第一信号包括帧同步参数，所述第二信号包括帧对齐 信号。 该装置还可以包括耦合到接收器电路的处理器电路，处理器电路被布置成基于帧同步参数激活或去激活接收机电路以接收帧对准信号。 可以描述和/或要求保护其他实施例。

公开(公告)号：US20110002263A1

公开(公告)日：2011-01-06

申请号：US12639640

申请日：2009-12-16

Applicant: Yuan Zhu ,  Qinghua Li ,  Xintian E. Lin ,  Huaning Niu ,  Alexei Davydov

Inventor： Yuan Zhu ,  Qinghua Li ,  Xintian E. Lin ,  Huaning Niu ,  Alexei Davydov

IPC: G09G3/36 ,  H04L27/28

CPC classification number: H04B7/0617 ,  H04B7/0456 ,  H04B7/0482 ,  H04B7/0619 ,  H04B7/0634 ,  H04B7/0641 ,  H04L12/66 ,  H04L25/021 ,  H04L25/0248 ,  H04L25/03343 ,  H04L25/03936 ,  H04W16/28 ,  H04W24/02 ,  H04W48/16 ,  H04W52/10 ,  H04W52/146 ,  H04W72/00 ,  H04W72/0413 ,  H04W84/045 ,  Y02D70/122 ,  Y02D70/124 ,  Y02D70/14

Abstract: Embodiments of methods and apparatus for determining and/or quantizing a beamforming matrix are disclosed. In some embodiments, the determining and/or quantizing of the beamforming matrix may include the use of a base codebook and a differential codebook. Additional variants and embodiments are also disclosed.

Abstract translation: 公开了用于确定和/或量化波束形成矩阵的方法和装置的实施例。 在一些实施例中，波束形成矩阵的确定和/或量化可以包括使用基本码本和差分码本。 还公开了其它变型和实施方案。

公开(公告)号：US20100091895A1

公开(公告)日：2010-04-15

申请号：US12442942

申请日：2006-09-29

Applicant: Alexander Maltsev ,  Audrey Pudeyev ,  Alexei Davydov ,  Sergey Tiraspolsky ,  Alexey Rubstov

Inventor： Alexander Maltsev ,  Audrey Pudeyev ,  Alexei Davydov ,  Sergey Tiraspolsky ,  Alexey Rubstov

IPC: H04L27/28 ,  H04L27/06

CPC classification number: H04L27/2613 ,  H04L25/022 ,  H04L27/2647

Abstract: A method and apparatus for identifying the preamble for an unknown signal received in Orthogonal Frequency Division Multiplexing (OFDM) communications. In one embodiment, the preamble is identified from a set of known preambles using a detection statistic based on a generalized likelihood ratio (GLR) method. In another embodiment, the GLR detection statistic relies on a priori assumptions about a transfer function represented by the received signal.

Abstract translation: 一种用于识别在正交频分复用（OFDM）通信中接收的未知信号的前导码的方法和装置。 在一个实施例中，使用基于广义似然比（GLR）方法的检测统计量，从一组已知的前导码中识别前导码。 在另一实施例中，GLR检测统计量依赖于关于由接收信号表示的传递函数的先验假设。

公开(公告)号：US20050141412A1

公开(公告)日：2005-06-30

申请号：US10749903

申请日：2003-12-29

Applicant: Ali Sadri ,  Alexander Maltsev ,  Sergey Sergeyev ,  Alexei Davydov ,  Vadim Sergeyev

Inventor： Ali Sadri ,  Alexander Maltsev ,  Sergey Sergeyev ,  Alexei Davydov ,  Vadim Sergeyev

IPC: H04B7/08 ,  H04L27/26 ,  H04J11/00

CPC classification number: H04W28/04 ,  H04B7/0857 ,  H04B7/0874 ,  H04L5/0023 ,  H04L27/2608 ,  H04L27/2647 ,  H04W24/00

Abstract: A reconfigurable multichannel receiver may selectively operate in increased throughput modes and/or increased range modes. In some embodiments, the receiver may select two or more antennas from a plurality of spatially diverse antennas to receive more than one subchannel of a wideband orthogonal frequency division multiplexed (OFDM) channel. Maximum-ratio combining may be performed on corresponding symbol-modulated subcarriers from the two or more antennas, and a single OFDM symbol may be generated from contributions from the subchannels received by the two or more antennas. In other embodiments, more than one subchannel of a wideband OFDM channel may be received through a single antenna selected from a plurality of spatially diverse antennas. In other embodiments, a single subchannel may be received by a plurality of spatially diverse antennas and maximum-ratio combining may be performed on corresponding symbol-modulated subcarriers received by the antennas.

Abstract translation: 可重新配置的多通道接收器可以选择性地以增加的吞吐量模式和/或增加的范围模式操作。 在一些实施例中，接收机可以从多个空间多样的天线中选择两个或更多个天线，以接收宽带正交频分复用（OFDM）信道的多于一个子信道。 可以对来自两个或更多个天线的相应的符号调制副载波执行最大比组合，并且可以从由两个或更多个天线接收的子信道的贡献生成单个OFDM符号。 在其他实施例中，可以通过从多个空间多样的天线中选择的单个天线来接收多于一个的宽带OFDM信道的子信道。 在其他实施例中，单个子信道可以由多个空间上不同的天线接收，并且可以对由天线接收的对应的符号调制子载波执行最大比合并。

公开(公告)号：US20230179269A1

公开(公告)日：2023-06-08

申请号：US17545688

申请日：2021-12-08

Applicant: Alexei Davydov ,  Bishwarup Mondal ,  Artyom Putilin ,  Victor Sergeev

Inventor： Alexei Davydov ,  Bishwarup Mondal ,  Artyom Putilin ,  Victor Sergeev

IPC: H04B7/0452 ,  H04B7/06 ,  H04B7/0456 ,  H04L5/00

CPC classification number: H04B7/0452 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0456 ,  H04L5/0048

Abstract: An apparatus for a base station configured for operation in a C-RAN includes processing circuitry coupled to a memory. To configure the base station for multi-user multiple input multiple output (MU-MIMO) signal processing, the processing circuitry is to decode a plurality of sounding reference signals received from a corresponding plurality of UEs via a corresponding plurality of channels. The plurality of channels are estimated based on the plurality of sounding reference signals. A beamforming matrix is determined based on a channel matrix corresponding to the plurality of channels. Beamforming is performed on a plurality of uplink (UL) data streams received from the plurality of UEs, to generate a plurality of beamformed streams. The beamforming is based on the beamforming matrix. Interference suppression is performed on the plurality of beamformed streams to generate a plurality of output data streams. The interference suppression is based on non-orthogonal DMRSs received from the UEs.

公开(公告)号：US20210126816A1

公开(公告)日：2021-04-29

申请号：US17141139

申请日：2021-01-04

Applicant: Alexei Davydov ,  Guotong Wang

Inventor： Alexei Davydov ,  Guotong Wang

IPC: H04L25/02 ,  H04L5/00 ,  H04W80/02 ,  H04W72/04 ,  H04W76/27

Abstract: An apparatus for use in a UE includes processing circuitry coupled to a memory. To configure the UE for 5G-NR communications, the processing circuitry is to decode higher layer signaling received from a base station, the higher layer signaling to configure a plurality of BWPs for UL and DL communication with the base station. A received DCI includes a field triggering SRS reporting. The field also indicates a subset of the plurality of BWPs for the SRS reporting. SRS is encoded for transmission to the base station using a first BWP of the subset of the plurality of BWPs indicated by the field to perform the SRS reporting. An UL communication comprising a PUSCH is encoded for transmission using a second BWP of the plurality of BWPs, the second BWP being non-overlapping with the subset of the plurality of BWPs.

公开(公告)号：US10992358B2

公开(公告)日：2021-04-27

申请号：US16189157

申请日：2018-11-13

Applicant: Alexander Sirotkin ,  Alexei Davydov ,  Andrey Chervyakov ,  Anthony Lee ,  Avik Sengupta ,  Bharat Shrestha ,  Candy Yiu ,  Chang Hong Shan ,  Dae Won Lee ,  Dawei Ying ,  Debdeep Chatterjee ,  Farid Adrangi ,  Gang Xiong ,  Geng Wu ,  Gregory Morozov ,  Hassan Ghozlan ,  Hong He ,  Honglei Miao ,  Hua Li ,  Jaemin Han ,  Jeongho Jeon ,  Jie Cui ,  Jing Zhu ,  Joey Chou ,  Joonbeom Kim ,  Joonyoung Cho ,  Kathiravetpillai Sivanesan ,  Lu Lu ,  May Wu ,  Naveen Palle ,  Puneet Jain ,  Qian Li ,  Richard C. Burbidge ,  Robert Zaus ,  Rui Huang ,  Satish Chandra Jha ,  Seau S. Lim ,  Sergey Panteleev ,  Song Noh ,  Yaser M. Fouad ,  Yi Guo ,  Yizhi Yao ,  Yongjun Kwak ,  Youn Hyoung Heo ,  Yuhan Zhou ,  Yujian Zhang ,  Yushu Zhang

Inventor： Alexander Sirotkin ,  Alexei Davydov ,  Andrey Chervyakov ,  Anthony Lee ,  Avik Sengupta ,  Bharat Shrestha ,  Candy Yiu ,  Chang Hong Shan ,  Dae Won Lee ,  Dawei Ying ,  Debdeep Chatterjee ,  Farid Adrangi ,  Gang Xiong ,  Geng Wu ,  Gregory Morozov ,  Hassan Ghozlan ,  Hong He ,  Honglei Miao ,  Hua Li ,  Jaemin Han ,  Jeongho Jeon ,  Jie Cui ,  Jing Zhu ,  Joey Chou ,  Joonbeom Kim ,  Joonyoung Cho ,  Kathiravetpillai Sivanesan ,  Lu Lu ,  May Wu ,  Naveen Palle ,  Puneet Jain ,  Qian Li ,  Richard C. Burbidge ,  Robert Zaus ,  Rui Huang ,  Satish Chandra Jha ,  Seau S. Lim ,  Sergey Panteleev ,  Song Noh ,  Yaser M. Fouad ,  Yi Guo ,  Yizhi Yao ,  Yongjun Kwak ,  Youn Hyoung Heo ,  Yuhan Zhou ,  Yujian Zhang ,  Yushu Zhang

IPC: H04B7/06 ,  H04L1/00 ,  H04W76/27 ,  H04W72/12 ,  H04W80/08 ,  H04B7/0456

Abstract: Embodiments of apparatus and methods for signaling for resource allocation and scheduling in 5G-NR integrated access and backhaul are generally described herein. In some embodiments, User Equipment configured for reporting a channel quality indicator (CQI) index in a channel state information (CSI) reference resource assumes a physical resource block (PRB) bundling size of two PRBs to derive the CQI index.

公开(公告)号：US20190281587A1

公开(公告)日：2019-09-12

申请号：US16406594

申请日：2019-05-08

Applicant: Yushu Zhang ,  Guotong Wang ,  Gang Xiong ,  Bishwarup Mondal ,  Alexei Davydov

Inventor： Yushu Zhang ,  Guotong Wang ,  Gang Xiong ,  Bishwarup Mondal ,  Alexei Davydov

IPC: H04W72/04 ,  H04W72/10

Abstract: Systems, apparatuses, methods, and computer-readable media are provided for selecting a TCI-State for receiving downlink transmissions. In one example a processor/UE is configured to determine one or more candidate TCIs for a downlink slot; determine a scheduling offset between a physical downlink shared channel (PDSCH) and a physical downlink control channel (PDCCH); prioritize the candidate TCIs based on the scheduling offset; identify a highest priority candidate TCI; and select the highest priority candidate TCI for receiving the PDSCH.

公开(公告)号：US20190166615A1

公开(公告)日：2019-05-30

申请号：US16245410

申请日：2019-01-11

Applicant: Ajit Nimbalker ,  Alexei Davydov ,  Gang Xiong ,  Yushu Zhang

Inventor： Ajit Nimbalker ,  Alexei Davydov ,  Gang Xiong ,  Yushu Zhang

IPC: H04W72/12 ,  H04W72/14

Abstract: Embodiments of a User Equipment (UE), Next Generation Node-B (gNB) and methods of communication are generally described herein. The UE may receive an information element (IE) that includes: a higher layer parameter that indicates a plurality of modulation and coding scheme (MCS) thresholds; and another higher layer parameter that includes a plurality of resource block (RB) thresholds. The UE may determine a time density of phase tracking reference signal (PT-RS) to be transmitted by the UE based at least partly on a comparison between a MCS and the plurality of MCS thresholds. The UE may determine a frequency density of the PT-RS based at least partly on a comparison between a scheduled bandwidth and the plurality of RB thresholds. The UE may encode the PT-RS for transmission in accordance with the determined time density and the determined frequency density.