公开(公告)号：WO2021009548A1

公开(公告)日：2021-01-21

申请号：PCT/IB2019/056113

申请日：2019-07-17

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： WYVILLE, Mark William ,  LAPORTE, Pierre-Andre

IPC: H04B17/10 ,  H04B17/29

Abstract: A method in a network node and an apparatus for determining passive intermodulation (PIM) characteristics at the network node are provided. According to one aspect, a method includes capturing signals from each of at least one antenna port at a first time and a second time. The method includes determining a first covariance matrix based on signals captured at the first time. The method also includes determining a second covariance matrix based on signals captured at the second time. The method further includes determining a difference matrix, the difference matrix being based on a difference between the first and second covariance matrices, the difference matrix corresponding to changes in PIM between the first time and the second time.

公开(公告)号：WO2020148324A1

公开(公告)日：2020-07-23

申请号：PCT/EP2020/050894

申请日：2020-01-15

Applicant: VITESCO TECHNOLOGIES GMBH

Inventor： HAGGENMILLER, Christoph ,  BÜENFELD, Alexander

IPC: H04B17/10 ,  H04B5/00

Abstract: Die Erfindung betrifft eine Vorrichtung zur Funktionsprüfung eines Antennensystems, insbesondere zur Fremdmetallerkennung, die umfasst: ein Antennensystem mit einer Mehrzahl von Antenneneinheiten (AE0,…, AE15), wobei jede der eine Antenne (A0,…, A15) und zumindest einen Widerstand (R0,…, R15) umfassenden Antenneneinheiten (AE0,…, AE15) jeweils zwischen einem zugeordneten Eingang einer Selektionseinheit (SE) und einem bestimmten von mehreren Ausgängen einer weiteren Selektionseinheit (SE2) verschaltet ist; eine Recheneinheit (CU), die dazu ausgebildet ist, an einem ersten Ausgang (CUO1) ein Steuersignal (CTRL_MUX_I, CTRL_MUX_II) für die Selektionseinheit (SE) und die weitere Selektionseinheit (SE2) bereitzustellen, wobei durch das Steuersignal festgelegt ist, welcher Eingang der Selektionseinheit (SE) mit einem Ausgang (SEO) der Selektionseinheit (SE) zu verbinden istund welcher der Ausgänge (SE2O0,…, SE2O3) der weiteren Selektionseinheit (SE2) mit einer am Eingang (SE2I) der weiteren Selektionseinheit (SE2) anliegenden Vorspannung (Vofst) beaufschlagt ist, und an einem Eingang (CUI1) der Recheneinheit (CU) das an dem Ausgang (SEO) der Selektionseinheit (SE) anliegende Antennensignal zu empfangen; eine zwischen dem Ausgang (SEO) der Selektionseinheit (SE) und einem Diagnosespannungsanschluss verschaltete und durch die Recheneinheit (CU) ansteuerbare Diagnoseschaltung (DC), wobei an dem Diagnosespannungsanschluss eine Diagnosespannung (Vaux) anliegt. Die Recheneinheit (CU) ist dazu ausgebildet, aus dem Vergleich von bei aktivierter und nicht aktivierter Diagnoseschaltung ermittelten Antennensignalen an dem Ausgang (SEO) der Selektionseinheit (SE) auf einen Fehler des Antennensystems zu schließen.

公开(公告)号：WO2020119910A1

公开(公告)日：2020-06-18

申请号：PCT/EP2018/084832

申请日：2018-12-13

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： SCHUH, Ralf ,  THOREBÄCK, Johan ,  ELFSTRÖM, Torbjörn ,  FRIDÉN, Jonas ,  BERGLJUNG, Christian

IPC: H04B7/06 ,  H04B17/10

Abstract: There is provided mechanisms for adapting beamformed transmission from a base station. A method is performed by a control node. The control node is configured to control the beamformed transmission. The method comprises obtaining a first piece of information indicative of distance to, and direction towards, a radio communication site relative the base station. The method comprises obtaining a second piece of information indicative of operating radio frequency band of the radio communication site. The method comprises adapting the beamformed transmission so as to keep emission from the base station in the direction towards the radio communication site that contributes within the operating radio frequency band of the radio communication site within a prescribed limit.

公开(公告)号：WO2020038833A1

公开(公告)日：2020-02-27

申请号：PCT/EP2019/071979

申请日：2019-08-15

Applicant: TELIT COMMUNICATIONS S.P.A.

Inventor： DEPERINI, Fabio ,  ANTONINI, Carlo

IPC: H04B17/10 ,  H04B17/17

Abstract: A system and method for detecting the presence and performance status of an antenna within a wireless telecommunications device, comprising monitoring a radio frequency (RF) power flow inside the wireless device using a directional coupler to measure both forward RF power originating from the device towards the antenna and reflected RF power originating from the antenna or other discontinuity and reflected back into the device, measuring a return loss based on a discrepancy between the forward RF power and the reflected RF power, comparing the return loss with one or more predetermined threshold values, and determining if the antenna is performing optimally or sub- optimally based on the comparison.

公开(公告)号：WO2020033016A3

公开(公告)日：2020-02-13

申请号：PCT/US2019/024532

申请日：2019-03-28

Applicant: APPLIED MATERIALS, INC.

Inventor： GHANTASALA, Sathyendra ,  DOH, Hyun-Ho

IPC: G01R31/28 ,  G01R19/00 ,  H04B17/10 ,  H01L21/3065

Abstract: A system for verifying the operation of RF generators and resulting pulse waveforms in semiconductor processes includes a process chamber, a profile sensor, an optical sensor and a controller. A process implemented by the controller of the system for verifying the operation of RF generators and resulting pulse waveforms in semiconductor processes includes generating a pulse profile of a pulse shape of an RF generator under test, selecting a stored, representative profile of an RF generator known to be operating correctly to compare to the profile generated for the RF generator for a same pulse mode, defining a quantitative metric/control limit to identify similarities and/or differences between pulses of same pulse modes between the generated profile of the RF generator and the stored profile, comparing the generated profile and the selected stored profile, and determining if the RF generator under test is operating properly based on the comparison.

公开(公告)号：WO2019240787A1

公开(公告)日：2019-12-19

申请号：PCT/US2018/037292

申请日：2018-06-13

Applicant: NOKIA TECHNOLOGIES OY ,  NOKIA USA INC.

Inventor： GOPALAN, Ramasamy ,  LENG, Linjie ,  KOMINEK, Sylwester ,  PIERRARD, Arnaud

IPC: H04B17/391 ,  H04B17/00 ,  G01R23/20 ,  H04B17/10

Abstract: An apparatus, method and work product is disclosed. The method comprises measuring plural transmit signals and corresponding receive signals and determining, using a model describing a relation between each of the plural transmit signals and a respective passive intermodulation signal, a standardized passive intermodulation signal as one or more nth order intermodulation products for a standardized transmit signal consisting of two tones each of a power of substantially 20 Watts. The method may also comprise identifying in the model one or more n th order cross-intermodulation products resulting from three or more transmit signals having different respective carrier frequencies. Responsive to the identification, the method may comprise adapting the standardized two-tone passive intermodulation signal by determining an offset for producing an adapted two-tone standardized passive intermodulation signal, n is an odd integer greater than two.

公开(公告)号：WO2019172599A1

公开(公告)日：2019-09-12

申请号：PCT/KR2019/002501

申请日：2019-03-05

Applicant: 삼성전자 주식회사

Inventor： 양동일 ,  김선준 ,  오승현 ,  이한엽 ,  임원섭 ,  나효석

IPC: H04B17/10 ,  H04B17/12 ,  H04B1/401

Abstract: 본 발명의 다양한 실시 예는 전자 장치에 인접한 객체의 식별 및 상기 객체와의 거리에 기반하여 다양한 기능을 제공하는 전자 장치 및 방법에 관한 것이다. 이를 위해, 본 발명은 전자 장치에 있어서, 제 1 안테나 및 제 2 안테나, 상기 제 1 안테나 및 상기 제 2 안테나를 이용하여 통신하기 위한 통신 회로, 및 상기 제1 안테나, 상기 제2 안테나 및 상기 통신 회로와 전기적으로 연결된 프로세서를 포함하고, 상기 프로세서는, 상기 통신 회로를 제어하여, 상기 제 1 안테나로 제 1 신호를 출력하고, 상기 제 1 신호가 상기 제 1 안테나에서 반사된 제 2 신호, 및 상기 제 1 안테나를 통해 출력된 상기 제 1 신호가 상기 제 2 안테나에서 수신된 제 3 신호를 획득하고, 상기 제 2 신호 및 상기 제 3 신호에 적어도 일부에 기반하여, 상기 제 1 신호가 상기 제 1 안테나에서 반사된 반사 계수, 및 상기 제 1 신호가 상기 제 2 안테나로 전달된 전달 계수를 확인하고, 및 상기 반사 계수 및 상기 전달 계수에 적어도 일부에 기반하여, 상기 전자 장치와 외부 객체 사이의 거리에 대응하는 값에 따라 지정된 기능을 수행하도록 설정될 수 있다. 다른 실시 예들도 가능할 수 있다.

公开(公告)号：WO2018220077A1

公开(公告)日：2018-12-06

申请号：PCT/EP2018/064292

申请日：2018-05-30

Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.

Inventor： LEATHER, Paul Simon Holt ,  HAUSTEIN, Thomas ,  SAKAGUCHI, Kei ,  ASKAR, Ramez

IPC: H04B17/10 ,  H04B17/20 ,  H04B17/309

Abstract: The present invention concerns network devices (10, 11) for use within a wireless communication network, wherein a transmitting network device (10) is configured to transmit to a receiving network device (11) via a control channel (12) one or more control signals (13) for configuring the receiving network device (11) for a characterization of at least one of the transmitting network device (10) and the receiving network device (11) and/or for a characterization of one or more communication channels (21, 22, 23a, 23b) between the transmitting network device (10) and the receiving network device (11).

公开(公告)号：WO2018199580A1

公开(公告)日：2018-11-01

申请号：PCT/KR2018/004705

申请日：2018-04-24

Applicant: 삼성전자주식회사

Inventor： 조동근

IPC: G01R27/08 ,  H04B17/10

CPC classification number: G01R27/08 ,  H04B17/10

Abstract: 본 개시는 LTE(Long Term Evolution)와 같은 4G(4 th generation) 통신 시스템 이후 보다 높은 데이터 전송률을 지원하기 위한 5G(5 th generation) 또는 pre-5G 통신 시스템에 관련된 것이다. 무선 통신 시스템에서 송신 장치는 신호를 송수신하는 적어도 하나의 안테나 포트와, 상기 신호의 주파수 선택 기능을 수행하는 아날로그 필터와, 상기 안테나 포트에 대한 정재파비(voltage standing wave ratio, VSWR)를 측정하는 VSWR 검출부를 포함하고, 상기 VSWR 검출부는 상기 아날로그 필터의 입력단에 대한 순방향 신호 및 역방향 신호 각각을 검출하고, 아날로그 필터의 특성 파라미터들을 상기 검출된 순방향 신호 및 역방향 신호에 적용함으로써 상기 아날로그 필터의 출력단에 대한 순방향 신호 및 역방향 신호 각각의 전력 값을 결정하고, 상기 아날로그 필터의 출력단에 대한 순방향 신호 및 역방향 신호 각각의 전력 값에 기반하여 상기 안테나 포트에 대한 VSWR을 결정하도록 구성된다.

公开(公告)号：WO2018157852A1

公开(公告)日：2018-09-07

申请号：PCT/CN2018/077851

申请日：2018-03-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： MOLEV SHTEIMAN, Arkady ,  QI, Xiao-Feng

IPC: H04B17/12 ,  H04B7/0413 ,  H04B17/10

Abstract: A method, system, and computer-readable medium are provided for calibrating elements of a MIMO array. The method includes the steps of receiving samples of a signal from a plurality of antenna units included in the MIMO array, generating an antenna domain channel estimate based on the samples of the signal received from each antenna unit, estimating a set of spatial parameters based on the antenna domain channel estimate, generating a reconstructed channel based on the estimated set of spatial parameters, comparing the antenna domain channel estimate and the reconstructed channel to determine errors associated with a set of mismatch parameters for each antenna unit, and adjusting the set of mismatch parameters based on the errors. Each antenna unit in the plurality of antenna units is configured to sample the signal based on a clock corresponding with the antenna unit.