公开(公告)号：US11018708B2

公开(公告)日：2021-05-25

申请号：US16610113

申请日：2018-05-02

Applicant: Intel IP Corporation

Inventor： Stefan Fechtel

IPC: H04B1/10 ,  H04B1/12

Abstract: A communication device is provided that includes a receiver configured to receive a signal. The communication device further includes a circuit configured to determine an interference reference signal based on an interference signal, to multiply the received signal with the interference reference signal in the time domain to form a multiplication signal and to filter the multiplication signal to form a filtered signal.

公开(公告)号：US20150271687A1

公开(公告)日：2015-09-24

申请号：US14660094

申请日：2015-03-17

Applicant: Intel IP Corporation

Inventor： Stefan Fechtel

IPC: H04W24/02

CPC classification number: H04W24/02 ,  H04L5/00 ,  H04W72/1231

Abstract: A method for estimating noise and interferer parameters includes receiving a signal comprising a noise and interference signal contribution. Noise and interference power samples are generated based on the signal. The noise and interference power samples are quantized into quantization levels. The occurrences of noise and interference power samples are accumulated for each quantization level during an observation period. Noise and interferer parameters are estimated based on the number of occurrences of noise and interference power samples per quantization level during the observation period.

Abstract translation: 用于估计噪声和干扰参数的方法包括接收包括噪声和干扰信号贡献的信号。 基于信号产生噪声和干扰功率样本。 噪声和干扰功率采样量化为量化级。 在观察期间，针对每个量化级别累积噪声和干扰功率样本的出现。 基于在观察期间每个量化级别的噪声和干扰功率样本的出现次数来估计噪声和干扰参数。

公开(公告)号：US20190068304A1

公开(公告)日：2019-02-28

申请号：US16081586

申请日：2017-02-13

Applicant: Intel IP Corporation

Inventor： Stefan Fechtel

IPC: H04B17/364 ,  H04B7/01 ,  H04B7/06 ,  H04L5/00 ,  H04L27/26 ,  H04B17/336

CPC classification number: H04B17/364 ,  H04B7/01 ,  H04B7/0413 ,  H04B7/0617 ,  H04B17/336 ,  H04L5/0048 ,  H04L25/0224 ,  H04L27/2628 ,  H04L27/2647

Abstract: The disclosure relates to a cluster detection device for detecting clusters in a beam-formed transmission, the cluster detection device comprising: a receiver, configured to receive a radio signal comprising time-frequency resources, wherein the time-frequency resources comprise a plurality of reference signals; a delay profile detector, configured to detect a set of delay profiles based on frequency-direction filtering of the plurality of reference signals; a Doppler profile detector, configured to detect a set of delay-Doppler profiles based on time-direction filtering of the set of delay profiles; and a cluster detection postprocessor, configured to derive a set of cluster parameters from the set of delay-Doppler profiles.

公开(公告)号：US09832667B2

公开(公告)日：2017-11-28

申请号：US14660094

申请日：2015-03-17

Applicant: Intel IP Corporation

Inventor： Stefan Fechtel

IPC: H04W24/02 ,  H04L5/00 ,  H04W72/12

CPC classification number: H04W24/02 ,  H04L5/00 ,  H04W72/1231

Abstract: A method for estimating noise and interferer parameters includes receiving a signal comprising a noise and interference signal contribution. Noise and interference power samples are generated based on the signal. The noise and interference power samples are quantized into quantization levels. The occurrences of noise and interference power samples are accumulated for each quantization level during an observation period. Noise and interferer parameters are estimated based on the number of occurrences of noise and interference power samples per quantization level during the observation period.

公开(公告)号：US09787446B2

公开(公告)日：2017-10-10

申请号：US14660029

申请日：2015-03-17

Applicant: Intel IP Corporation

Inventor： Kilian Roth ,  Cecilia Carbonelli ,  Stefan Fechtel

IPC: H04L5/00

CPC classification number: H04L5/0032 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0073 ,  H04L5/0082

Abstract: A method (700) for processing resource blocks in a receiver may include receiving (701) a signal comprising transmissions from a plurality of radio cells, wherein received samples of the signal are arranged in a plurality of resource blocks (300); forming (702) a plurality of clusters ({xi,jN}) based on a similarity criterion with respect to the plurality of resource blocks (300); and assigning (703) each resource block of the plurality of resource blocks (300) to one cluster of the plurality of clusters ({xi,jN}).

公开(公告)号：US09578653B2

公开(公告)日：2017-02-21

申请号：US14499036

申请日：2014-09-26

Applicant: INTEL IP CORPORATION

Inventor： Cecilia Carbonelli ,  Stefan Fechtel ,  Stefan Franz ,  Sabine Roessel

IPC: H04W4/00 ,  H04W72/12 ,  H04L5/00 ,  H04W72/08 ,  H04B1/12 ,  H04B7/04 ,  H04B7/06 ,  H04B7/02

CPC classification number: H04W72/1278 ,  H04B1/123 ,  H04B7/024 ,  H04B7/0456 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0626 ,  H04L5/0005 ,  H04L5/006 ,  H04W72/08

Abstract: Embodiments provide improved interference classification and parameter estimation at a User Equipment (UE) that uses received scheduling information associated with interfering cells from a network node together with parameters associated with interfering cells generated locally to the UE to generate an interference mapping data set that may be used to adjust subsequent interference classification and parameter estimation processing in the UE.

Abstract translation: 实施例在用户设备（UE）提供改进的干扰分类和参数估计，其使用与来自网络节点的干扰小区相关联的接收到的调度信息以及与本地生成的干扰小区相关联的参数，以生成干扰映射数据集，其可以是 用于调整UE中的后续干扰分类和参数估计处理。

公开(公告)号：US11245557B2

公开(公告)日：2022-02-08

申请号：US17041490

申请日：2018-06-07

Applicant: Intel IP Corporation

Inventor： Placido Mursia ,  Stefan Fechtel

IPC: H04L27/26 ,  H04L5/00 ,  H04L25/02 ,  H04L12/26

Abstract: A method of generating channel estimates of a communication channel in an OFDM system includes receiving references symbols from at least one time frequency observation block of a predetermined block size in frequency and time; generating subspace-transformed reference symbols from the received reference symbols; and subspace filtering the subspace-transformed reference symbols to generate a channel estimate for a communication channel target time; wherein a latency between a communication channel time instant of a currently received reference symbol and the communication channel target time is smaller than the observation block size in time.

公开(公告)号：US10742450B2

公开(公告)日：2020-08-11

申请号：US15575420

申请日：2016-05-18

Applicant: Intel IP Corporation

Inventor： Stefan Fechtel ,  Cecilia Carbonelli ,  Stefan Franz

IPC: H04L25/02

Abstract: A channel estimation coefficients generator (200) for generating channel estimation coefficients for channel estimation filtering includes: a parameter acquisition unit (205) configured to acquire a first set of input parameters (208) and to acquire a second set of input parameters (209), wherein a time variability of the first set of input parameters (208) is smaller than a time variability of the second set of input parameters (209); a first channel estimation coefficients generator (201) configured to generate a prototype set of channel estimation coefficients (202) based on the first set of input parameters (208); and a second channel estimation coefficients generator (203) configured to generate a refined set of channel estimation coefficients (204) based on the prototype set of channel estimation coefficients (202) and based on the second set of input parameters (209).

公开(公告)号：US20200083919A1

公开(公告)日：2020-03-12

申请号：US16610113

申请日：2018-05-02

Applicant: Intel IP Corporation

Inventor： Stefan Fechtel

IPC: H04B1/10

Abstract: A communication device is provided that includes a receiver configured to receive a signal. The communication device further includes a circuit configured to determine an interference reference signal based on an interference signal, to multiply the received signal with the interference reference signal in the time domain to form a multiplication signal and to filter the multiplication signal to form a filtered signal.

公开(公告)号：US10461962B2

公开(公告)日：2019-10-29

申请号：US15776098

申请日：2015-12-18

Applicant: Intel IP Corporation

Inventor： Stefan Fechtel

IPC: H04J11/00 ,  H04L25/02 ,  H04L25/03 ,  H04L27/26

Abstract: A communication terminal is described comprising a receiver configured to receive pilot signal samples via a plurality of communication channels and to determine an interference matrix which includes, for each pilot signal sample, interference information representing an amount of interference included in the pilot signal sample and a channel estimator configured to determine a channel autocorrelation matrix for the plurality of communication channels and to determine a linear transformation which diagonalizes or triagonalizes the autocorrelation matrix, to transform the interference matrix by the transformation and to reduce the transformed interference matrix by discarding components corresponding to predetermined eigenvectors of the autocorrelation matrix, to determine filter weights for the signal samples based on the reduced interference matrix and to determine channel estimates by filtering the pilot signal samples using the determined filter weights.