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：US20180070254A1

公开(公告)日：2018-03-08

申请号：US15691615

申请日：2017-08-30

Applicant: CommScope Technologies LLC

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

IPC: H04W24/08 ,  H04W72/08 ,  H04W52/24

CPC classification number: H04W24/08 ,  H04B17/0085 ,  H04B17/26 ,  H04B17/345 ,  H04W52/24 ,  H04W72/082

Abstract: A method for detecting interference in a wireless system is disclosed. The method includes receiving an uplink signal at a remote radio head in a distributed base station, passing the uplink signal from the remote radio head to a baseband unit over a front-haul communication link as baseband IQ data, and intercepting the baseband IQ data at a tester coupled between the remote radio head and the baseband unit. Processing of the IQ data is performed to determine whether an interfering signal is present in the uplink signal.

公开(公告)号：US20170244507A1

公开(公告)日：2017-08-24

申请号：US15249027

申请日：2016-08-26

Applicant: CommScope Technologies LLC

Inventor： Ariful Hannan

IPC: H04J11/00 ,  H04W72/04 ,  H04W24/06 ,  H04L27/26

CPC classification number: H04J11/0023 ,  H04B3/46 ,  H04L1/206 ,  H04L27/2628 ,  H04W24/06 ,  H04W72/0413 ,  H04W72/042 ,  H04W88/085

Abstract: A signal power tester in provided. The signal power tester includes at least one interface to communicatively couple the signal power tester unit 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 signal power tester further comprises a programmable processor, coupled to the interface, configured to execute software, wherein the software is operable to cause the signal power tester to do the following: determine a representative segment indicative of a noise floor of a communication signal; determine whether the representative segment meets selected criterion; determine a translation factor for the representative segment; and measure power of the communication signal based on applying the translation factor.

公开(公告)号：US09423508B2

公开(公告)日：2016-08-23

申请号：US13740643

申请日：2013-01-14

Applicant: CommScope Technologies LLC

Inventor： Ariful Hannan ,  Khalid W Al-Mufti ,  Tariqul Islam

IPC: G01S19/46 ,  G01S5/02 ,  G01S5/10

CPC classification number: G01S19/46 ,  G01S5/021 ,  G01S5/10

Abstract: A system and method for determining transmission delay in a communications system. In some embodiments, satellite positioning information may be received for a mobile device and enhanced cell identification (E-CID) positioning information received for the mobile device. A location of the mobile device may be determined as a function of the received satellite positioning information, and transmission delay between a node serving the mobile device and an antenna serving the mobile device determined as a function of the received E-CID positioning information and the determined location of the mobile device.

公开(公告)号：US20230337149A1

公开(公告)日：2023-10-19

申请号：US18193326

申请日：2023-03-30

Applicant: CommScope Technologies LLC

Inventor： Navin Srinivasan ,  Ariful Hannan

IPC: H04W52/34 ,  H04W52/36 ,  H04W72/0453

CPC classification number: H04W52/346 ,  H04W52/367 ,  H04W72/0453

Abstract: Techniques are provided for determining a channel at and/or a maximum transmit power level in which the requesting General Authorized Access (GAA) citizens broadband radio service device (CBSD) can transmit prior to the next to be executed coordinated periodic activities among spectrum access systems while diminishing co-channel interference between the requesting GAA CBSD and other GAA CBSD(s) in a neighborhood centered around the requesting GAA CBSD.

公开(公告)号：US20230007668A1

公开(公告)日：2023-01-05

申请号：US17720056

申请日：2022-04-13

Applicant: CommScope Technologies LLC

Inventor： Khalid W. Al-Mufti ,  Ariful Hannan

IPC: H04W72/12 ,  H04W52/24 ,  H04W16/14 ,  H04W52/30

Abstract: Techniques are provided for diminishing (a) interference at GAA CBSD(s), and/or (b) maximum transmit power(s) of each of one or more GAA CBSD(s) by eliminating contention(s) between one or more pairs of spectrum access systems.

公开(公告)号：US20220346029A1

公开(公告)日：2022-10-27

申请号：US17703608

申请日：2022-03-24

Applicant: CommScope Technologies LLC

Inventor： Khalid W. Al-Mufti ,  Ariful Hannan

IPC: H04W52/24 ,  H04W40/24 ,  H04W72/04 ,  H04W52/36

Abstract: Techniques are provided for more efficiently determining frequency spectrum to allocate to General Authorized Access (GAA) citizens broadband radio service device(s) (CBSD(s)). Efficiency is enhanced by reducing a number of protection point(s) analyzed.

公开(公告)号：US20220345895A1

公开(公告)日：2022-10-27

申请号：US17703640

申请日：2022-03-24

Applicant: CommScope Technologies LLC

Inventor： Khalid W. Al-Mufti ,  Ariful Hannan

IPC: H04W16/14 ,  H04W16/10 ,  H04W72/08 ,  H04W52/24 ,  H04W4/02

Abstract: Techniques are provided for more efficiently determining frequency spectrum to allocate to General Authorized Access (GAA) citizens broadband radio service device(s) (CBSD(s)). Efficiency is enhanced by forming interference groups. Each of interference group may be analyzed in parallel and substantially contemporaneously, e.g., using parallel processing.

公开(公告)号：US11310750B2

公开(公告)日：2022-04-19

申请号：US16538459

申请日：2019-08-12

Applicant: CommScope Technologies LLC

Inventor： Ariful Hannan ,  Raina Rahman ,  Navin Srinivasan

IPC: H04W52/36 ,  H04W52/24 ,  H04L5/14 ,  H04W16/14 ,  H04W72/04 ,  H04W72/08 ,  H04W16/28

Abstract: Techniques for determining power levels of radios, including a time domain duplexing (TDD) system, in shared frequency spectrum is provided. A TDD radio, of the TDD system, in a neighborhood having a largest interference contribution in the frequency spectrum at the point. Transmit power levels are determined for (a) the selected TDD radio, (b) other radios in the neighborhood that are not part of the TDD system, and (c) at least one radio in the TDD system that is not the TDD radio having the largest interference contribution in the frequency spectrum. Thus, interference margin may be fairly allocated to radios in neighborhood(s) about protection points.

公开(公告)号：US20210297868A1

公开(公告)日：2021-09-23

申请号：US17208449

申请日：2021-03-22

Applicant: CommScope Technologies LLC

Inventor： Andrew E. Beck ,  Ariful Hannan

IPC: H04W16/14 ,  H04W72/06 ,  H04W48/16 ,  H04W24/08 ,  H04W72/10

Abstract: A method for selecting at least one channel for a network element in a shared spectrum communication system is provided. The method includes identifying a plurality of candidate channels of a frequency band of the shared spectrum communication system. For each channel of the plurality of channels, the method further includes: evaluating the channel based on one or more of a plurality of criteria for the network element; scoring the channel based on the evaluation of the channel for the network element; and ranking the plurality of candidate channels based on the assigned scores for each of the plurality of channels. The method further includes selecting at least one channel based on the ranking of the plurality of candidate channels