公开(公告)号：US09173060B2

公开(公告)日：2015-10-27

申请号：US14528773

申请日：2014-10-30

Applicant: CommScope Technologies LLC

Inventor： Martin Alles ,  Thomas B. Gravely ,  Khalid W. Al-Mufti

IPC: H04W64/00 ,  H04W4/02 ,  G01S5/02

CPC classification number: H04W4/02 ,  G01S5/021 ,  G01S5/0252 ,  H04W4/025 ,  H04W64/00

Abstract: A system and method for determining the location of a mobile device in a communications network. A set of network measurement reports (NMR) may be provided for a region in the network. NMRs in the first set may be clustered as a function of observed measurement information in the NMRs. A candidate NMR for a mobile device may be received, and the candidate NMR may then be associated with a selected cluster of NMRs. The candidate NMR and a second set of NMRs may then be clustered, and a location of the mobile device determined as a function of the clustered candidate NMR and second set of NMRs, where the NMRs in the second set are associated with the selected cluster.

Abstract translation: 一种用于确定移动设备在通信网络中的位置的系统和方法。 可以为网络中的一个区域提供一组网络测量报告（NMR）。 第一组中的NMR可以作为NMR中观察到的测量信息的函数聚集。 可以接收用于移动设备的候选NMR，然后候选NMR可以与选定的NMR簇相关联。 然后可以将候选NMR和第二组NMR聚类，并且确定移动设备的位置作为聚簇候选NMR和第二组NMR的函数，其中第二组中的NMR与所选择的簇相关联。

公开(公告)号：US20190261300A1

公开(公告)日：2019-08-22

申请号：US16128004

申请日：2018-09-11

Applicant: CommScope Technologies LLC

Inventor： Martin C. Alles ,  Thomas B. Gravely ,  Khalid W. Al-Mufti ,  Andrew E. Beck

IPC: H04W64/00 ,  H04W4/02 ,  G01S5/00

Abstract: A system and method for determining the location of a target mobile device in a communications network. A set of mobile devices in proximity to the target mobile device may be determined (210) as a function of a common parameter of information observed by mobile devices in the set. Measurement data may be shared (220) for the set of mobile devices and the target mobile device, and a location of the target mobile device (230) determined as a function of the shared measurement data. This sharing of measurement data may occur amongst the set of mobile devices and the target mobile device or may also occur at a communication network entity.

公开(公告)号：US10230550B2

公开(公告)日：2019-03-12

申请号：US15759497

申请日：2016-11-18

Applicant: CommScope Technologies LLC

Inventor： Khalid W. Al-Mufti ,  Thomas B. Gravely ,  Ariful Hannan

IPC: H04L25/02 ,  H04L25/03 ,  H04B1/10

Abstract: A method for diminishing passive intermodulation (PIM) is provided. The method comprises: upsampling an uplink baseband modulated signal; upsampling a downlink baseband modulated signal; determining a time delay for the upsampled downlink baseband modulated signal; time delaying the upsampled downlink baseband modulated signal by the determined time delay; estimating a third order PIM distortion (PIMD) product by filtering the time delayed, upsampled downlink baseband modulated signal with a third order power series kernel; generating a first filtered signal by subtracting the estimated third order PIMD product from the upsampled downlink baseband modulated signal; estimating a Nth order PIMD product by filtering the time delayed, upsampled downlink baseband modulated signal with a Nth order power series kernel; generating a nth filtered signal by subtracting the estimated Nth order PIMD product from the n−1th filtered signal; and downsampling the nth filtered signal.

公开(公告)号：US20180262370A1

公开(公告)日：2018-09-13

申请号：US15759497

申请日：2016-11-18

Applicant: CommScope Technologies LLC

Inventor： Khalid W. Al-Mufti ,  Thomas B. Gravely ,  Ariful Hannan

IPC: H04L25/03 ,  H04B1/10

CPC classification number: H04L25/03 ,  H04B1/10 ,  H04L25/02 ,  H04L25/0252

Abstract: A method for diminishing passive intermodulation (PIM) is provided. The method comprises: upsampling an uplink baseband modulated signal; upsampling a downlink baseband modulated signal; determining a time delay for the upsampled downlink baseband modulated signal; time delaying the upsampled downlink baseband modulated signal by the determined time delay; estimating a third order PIM distortion (PIMD) product by filtering the time delayed, upsampled downlink baseband modulated signal with a third order power series kernel; generating a first filtered signal by subtracting the estimated third order PIMD product from the upsampled downlink baseband modulated signal; estimating a Nth order PIMD product by filtering the time delayed, upsampled downlink baseband modulated signal with a Nth order power series kernel; generating a nth filtered signal by subtracting the estimated Nth order PIMD product from the n−1th filtered signal; and downsampling the nth filtered signal.

公开(公告)号：US20150304151A1

公开(公告)日：2015-10-22

申请号：US14646907

申请日：2013-12-16

Applicant: CommScope Technologies LLC

Inventor： Martin C. Alles ,  Navin Srinivasan ,  Thomas B. Gravely ,  Andrew Beck

IPC: H04L27/26 ,  H04B1/10

CPC classification number: H04L27/2678 ,  H04B1/1027 ,  H04J11/0023 ,  H04L7/007 ,  H04L27/0012 ,  H04L27/2627 ,  H04L27/2666

Abstract: The present disclosure describes systems and methods for identifying a signal that is a product of two or more other signals. In an embodiment, intermodulation distortion is determined by searching a frequency band for an RF product signal and identifying the RF product signal as an intermodulation distortion signal using a cyclostationarity detection technique.

Abstract translation: 本公开描述了用于识别作为两个或更多个其他信号的乘积的信号的系统和方法。 在一个实施例中，通过在频带中搜索RF产品信号并且使用周期平稳检测技术将RF产品信号识别为互调失真信号来确定互调失真。

公开(公告)号：US10608919B2

公开(公告)日：2020-03-31

申请号：US15430211

申请日：2017-02-10

Applicant: CommScope Technologies LLC

Inventor： Andrew E. Beck ,  Thomas B. Gravely ,  Patrick Boyle

IPC: H04L12/26 ,  H04W88/08

Abstract: A passive intermodulation (PIM) tester is provided. The PIM tester includes at least one interface to couple the tester to a front-haul communication link used for communicating front-haul data to a remote radio head (RRH) having one or more antenna ports. The PIM tester includes a programmable processor, coupled to the interface, configured to execute software, wherein the software is operable to cause the tester to do the following: identify at least one tone in at least one downlink band of the remote radio head, wherein potential PIM products may appear in at least one uplink band of the remote radio head in response to the identified at least one tone; inject the identified at least one tone in the at least one downlink band of the remote radio head; and monitor the at least one uplink band for the potential PIM products from the injected at least one tone.

公开(公告)号：US10466338B2

公开(公告)日：2019-11-05

申请号：US15610037

申请日：2017-05-31

Applicant: CommScope Technologies LLC

Inventor： Khalid W. Al-Mufti ,  Ariful Hannan ,  Thomas B. Gravely ,  Navin Srinivasan

IPC: G01S7/00 ,  G01S7/02 ,  H04B1/69 ,  H04B1/06 ,  H04B17/30 ,  H04B17/318 ,  H04J11/00

Abstract: A method for detecting the presence of a signal in a frequency spectrum is provided. The method includes receiving the frequency spectrum. The power spectral density of the received frequency spectrum is estimated. A plurality of frequency bins are segmented for the frequency spectrum based on the estimated power spectral density. For segments with an estimated power spectral density above a first threshold, a radar spectral signature matching algorithm is applied to detect the presence of the signal and for segments with a power estimate below the first threshold and above a second threshold, additional techniques are applied to detect the presence of the signal.

公开(公告)号：US20180332487A1

公开(公告)日：2018-11-15

申请号：US15527316

申请日：2015-04-22

Applicant: CommScope Technologies LLC

Inventor： Andrew E. Beck ,  Thomas B. Gravely

IPC: H04W24/06 ,  H04B17/00 ,  H04B17/345

CPC classification number: H04W24/06 ,  H04B17/0085 ,  H04B17/27 ,  H04B17/345

Abstract: The present disclosure describes various embodiments for detecting and/or localizing a passive intermodulation distortion signal in a radio frequency system having multiple transmit and/or receive paths.

公开(公告)号：US10085230B2

公开(公告)日：2018-09-25

申请号：US15603514

申请日：2017-05-24

Applicant: CommScope Technologies LLC

Inventor： Martin C. Alles ,  Thomas B. Gravely ,  Khalid W. Al-Mufti ,  Andrew E. Beck

IPC: H04W24/00 ,  H04W64/00 ,  G01S5/00 ,  H04W4/02 ,  H04W24/10 ,  H04W88/02

CPC classification number: H04W64/00 ,  G01S5/0036 ,  G01S5/0072 ,  H04W4/023 ,  H04W24/10 ,  H04W64/003 ,  H04W88/02

Abstract: A system and method for determining the location of a target mobile device in a communications network. A set of mobile devices in proximity to the target mobile device may be determined (210) as a function of a common parameter of information observed by mobile devices in the set. Measurement data may be shared (220) for the set of mobile devices and the target mobile device, and a location of the target mobile device (230) determined as a function of the shared measurement data. This sharing of measurement data may occur amongst the set of mobile devices and the target mobile device or may also occur at a communication network entity.

公开(公告)号：US10038982B2

公开(公告)日：2018-07-31

申请号：US15119967

申请日：2015-02-18

Applicant: CommScope Technologies LLC

Inventor： Martin C. Alles ,  Suryanarayana A. Kalenahalli ,  Andrew E. Beck ,  Thomas B. Gravely ,  Javier F. Cereceda

IPC: H04W4/02 ,  H04W4/04 ,  H04W64/00 ,  H04W4/029

CPC classification number: H04W4/029 ,  G01S5/00 ,  G01S5/0252 ,  G01S5/0278 ,  H04W4/023 ,  H04W4/30 ,  H04W4/33 ,  H04W4/38

Abstract: This disclosure pertains to systems and methods that may be used to increase the information content of a mobile device so as to locate, track, or determine the behavior of a mobile device and/or the user of the mobile device. Separate pieces of information (information snippets) may be aggregated over time to form information linkages. The snippets and linkages may be associated with a time stamp and/or a time frame. The snippets and linkages may be associated with a probability value which may be updated as more information is acquired. The snippets and linkages may be aggregated with, for example a building floor plan to provide more complete informational description of the mobile device and/or the behavior of the user of the mobile device (information map).