Amir M Soltanian

US Patent:

7272126, Sep 18, 2007

Filed:

Apr 7, 2005

Appl. No.:

11/101340

Inventors:

Amir Soltanian - Potomac MD, US
Mirjana Peric - Bethesda MD, US

Assignee:

PCTEL, Inc. - Chicago IL

International Classification:

H04B 7/216

US Classification:

370335, 370229, 370252, 370320, 370328, 370338, 370342, 370350, 370441, 370468, 370479, 375130, 375362, 34235712

Abstract:

An improved apparatus (and corresponding methodology) for discovering beacon signals in a spread spectrum radio communication system is provided, wherein the beacon signals comprise a plurality of different code sequences having index values assigned thereto and having portions that overlap one another. Correlation is performed over an extended search window. Ambiguities between correlation peaks are resolved by identifying correlation peak pairs corresponding to overlapping code sequences and having time offsets that fall within a predetermined tolerance window. Each pair is analyzed to identify the peak with a lower power level metric, and information pertaining to this lower power level peak is discarded from output and processing operations that follow therefrom.

US Patent:

8532027, Sep 10, 2013

Filed:

Apr 20, 2010

Appl. No.:

12/763482

Inventors:

Wei Zha - Germantown MD, US
Amir Soltanian - Potomac MD, US
Yuelun Guo - Germantown MD, US
Wei Lu - Bethesda MD, US

Assignee:

PCTEL, Inc. - Bloomington IL

International Classification:

H04W 4/00

US Classification:

370328

Abstract:

A system and method for SSS detection under carrier frequency offset in an orthogonal frequency-division multiple access (OFDMA) downlink channel. A processor receives a signal sample that includes a transmission on a primary synchronization signal (PSS) and a transmission on a one secondary synchronization signal (SSS). The processor determines a correlation “P” of a first symbol transmitted in the PSS of the signal sample to a first known symbol at each time “t” of time increments k of the signal sample and a correlation “S” of a second symbol transmitted in the a SSS to a second known symbol at each time t-. 5/7 msecs. The processor receives a candidate phase rotation of θfrom a set of “i” candidates and determines a correlation “Cmax” over the time increments k representing a maximum amplitude of a combined correlation of S and P, with P rotated by θ. The processor determines the cell identifier from the first and second known symbols that produced S and P of C max and an estimation of the frequency offset between a transmitter of the signal sample and a receiver of the signal sample.

US Patent:

8588136, Nov 19, 2013

Filed:

Apr 20, 2010

Appl. No.:

12/763482

Inventors:

Wei Zha - Germantown MD, US
Amir Soltanian - Potomac MD, US
Yuelun Guo - Germantown MD, US
Wei Lu - Bethesda MD, US

Assignee:

PCTEL, Inc. - Bloomingdale IL

International Classification:

H04W 4/00

US Classification:

370328

Abstract:

A system and method for SSS detection under carrier frequency offset in an orthogonal frequency-division multiple access (OFDMA) downlink channel. A processor receives a signal sample that includes a transmission on a primary synchronization signal (PSS) and a transmission on a one secondary synchronization signal (SSS). The processor determines a correlation “P” of a first symbol transmitted in the PSS of the signal sample to a first known symbol at each time “t” of time increments k of the signal sample and a correlation “S” of a second symbol transmitted in the a SSS to a second known symbol at each time t-. 5/7 msecs. The processor receives a candidate phase rotation of θfrom a set of “i” candidates and determines a correlation “Cmax” over the time increments k representing a maximum amplitude of a combined correlation of S and P, with P rotated by θ. The processor determines the cell identifier from the first and second known symbols that produced S and P of C max and an estimation of the frequency offset between a transmitter of the signal sample and a receiver of the signal sample.

US Patent:

20120214504, Aug 23, 2012

Filed:

Feb 18, 2011

Appl. No.:

13/030332

Inventors:

Wei Zha - Boyds MD, US
Amir Soltanian - Potomac MD, US
Tony Kobrinetz - Hoffman Estates IL, US

Assignee:

PCTEL, Inc. - Bloomingdale IL

International Classification:

H04W 24/00
H04W 64/00

US Classification:

4554561, 4554221

Abstract:

Systems and methods for acquiring wireless network performance data comprising a user equipment accessible via a wireless network, the user equipment comprising; a receiver, a transmitter, a first processor configured with software executable instructions to cause the user equipment to perform operations comprising; receiving a data acquisition signal via the receiver, sampling a wireless network signal received at the user equipment in response to receiving the data acquisition signal, generating acquired network data, and transmitting the acquired network data via the transmitter, a server accessible via the wireless network, the server comprising, a second processor configured with software executable instructions to cause the server to perform operations comprising; transmitting the data acquisition signal, receiving the acquired network data; and generating network performance data using the acquired network data.

US Patent:

7019691, Mar 28, 2006

Filed:

Apr 7, 2005

Appl. No.:

11/100937

Inventors:

Amir Soltanian - Potomac MD, US
Mirjana Peric - Bethesda MD, US
Vikash Srivastava - Boyds MD, US

Assignee:

PCTEL,Maryland, Inc. - Germantown MD

International Classification:

H01Q 3/22

US Classification:

342368, 342374

Abstract:

An apparatus (and corresponding methodology) for discovering beacon signals in a spread spectrum radio communication system is selectively operable in one of two modes. The first mode employs a local reference timing signal, while the second mode employs a GPS-derived reference timing signal. Preferably, the first mode identifies a baseline beacon signal that satisfies a constraint based upon time delays for detected beacon signals which are indicative of the relative distance of the transmitting base stations, thus providing selection of a baseline beacon signal that originates from a relatively close base station. The index of the baseline beacon signal is recovered and then used together with relative timing derived from the local reference timing signal to assign indices to other detected beacon signals. In another aspect, control means is provided for selectively switching between the first and second modes in accordance with a plurality of user-selectable modes, which preferably include a GPS-priority mode (whereby the control means automatically switches between the first and second modes based upon GPS signal receive status) and an Indoor mode (whereby the control means operates in the first mode irrespective of GPS signal receive status).

US Patent:

20210022019, Jan 21, 2021

Filed:

Jul 16, 2019

Appl. No.:

16/512865

Inventors:

- Bloomingdale IL, US
Amir Soltanian - Potomac MD, US
Antony Thanesh Soosai Retnam - Germantown MD, US

International Classification:

H04W 24/08
H04L 5/00
H04B 17/318

Abstract:

Embodiments disclosed herein include systems and methods for locating all synchronization signal blocks on a 5G new radio channel. Such systems and methods can include measuring downlink signal energy over a bandwidth of the 5G new radio channel to identify a center frequency of a signal broadcast on the 5G new radio channel, processing the signal at the center frequency of the signal to identify a first of a plurality of synchronization signal blocks and global OFDM symbol boundaries for the wireless radio channel, and using the global OFDM symbol boundaries for all raster frequencies of the 5G new radio channel to identify remaining ones of the plurality of synchronization signal blocks.

US Patent:

20170272305, Sep 21, 2017

Filed:

Mar 15, 2017

Appl. No.:

15/459695

Inventors:

- Bloomingdale IL, US
Amir Soltanian - Potomac MD, US
James Zik - Mount Airy MD, US
Dinesh Chilamakuri - Frisco TX, US
Sumeet Paul - Evanston IL, US
Chintan Fafadia - Boyds MD, US

International Classification:

H04L 12/24
H04W 72/04
H04W 52/32
H04L 12/26

Abstract:

Systems and methods for cellular network anomaly detection using spatially aggregated data are provided. Some methods can include identifying data signals at multiple, non-continuous times from a plurality of geographic regions, identifying a power value for each of the data signals, and when the power value for a first of the data signals corresponding to a first of the plurality of geographic regions is higher than a second value, identifying the first of the plurality of geographic regions as a possible location of external interference in a LTE downlink communication channel, a TD-LTE uplink communication channel, or a FD-LTE uplink communication channel.