Patents Assigned to DALI WIRELESS, INC.
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Patent number: 11818642Abstract: The present disclosure is a novel utility of a software defined radio (SDR) based Distributed Antenna System (DAS) that is field reconfigurable and support multi-modulation schemes (modulation-independent), multi-carriers, multi-frequency bands and multi-channels. The present invention enables a high degree of flexibility to manage, control, enhance, facilitate the usage and performance of a distributed wireless network such as Flexible Simulcast, automatic traffic load-balancing, network and radio resource optimization, network calibration, autonomous/assisted commissioning, carrier pooling, automatic frequency selection, frequency carrier placement, traffic monitoring, traffic tagging, pilot beacon, etc. As a result, a DAS in accordance with the present invention can increase the efficiency and traffic capacity of the operators' wireless network.Type: GrantFiled: May 6, 2021Date of Patent: November 14, 2023Assignee: Dali Wireless, Inc.Inventors: Shawn Patrick Stapleton, Paul Lemson, Bin Lin, Albert S. Lee
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Patent number: 11805504Abstract: The present disclosure is a novel utility of a software defined radio (SDR) based Distributed Antenna System (DAS) that is field reconfigurable and support multi-modulation schemes (modulation-independent), multi-carriers, multi-frequency bands and multi-channels. The present disclosure enables a high degree of flexibility to manage, control, enhance, facilitate the usage and performance of a distributed wireless network such as flexible simulcast, automatic traffic load-balancing, network and radio resource optimization, network calibration, autonomous/assisted commissioning, carrier pooling, automatic frequency selection, frequency carrier placement, traffic monitoring, traffic tagging, pilot beacon, etc.Type: GrantFiled: April 5, 2022Date of Patent: October 31, 2023Assignee: DALI WIRELESS, INC.Inventors: Paul Lemson, Shawn Patrick Stapleton, Sasa Trajkovic, Albert S. Lee
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Patent number: 11737067Abstract: The present disclosure is a novel utility of a software defined radio (SDR) based Distributed Antenna System (DAS) that is field reconfigurable and support multi-modulation schemes (modulation-independent), multi-carriers, multi-frequency bands and multi-channels. The present disclosure enables a high degree of flexibility to manage, control, enhance, facilitate the usage and performance of a distributed wireless network such as flexible simulcast, automatic traffic load-balancing, network and radio resource optimization, network calibration, autonomous/assisted commissioning, carrier pooling, automatic frequency selection, frequency carrier placement, traffic monitoring, traffic tagging, pilot beacon, etc.Type: GrantFiled: April 5, 2022Date of Patent: August 22, 2023Assignee: DALI WIRELESS, INC.Inventors: Paul Lemson, Shawn Patrick Stapleton, Sasa Trajkovic, Albert S. Lee
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Patent number: 11563492Abstract: A system for routing signals in a Distributed Antenna System (DAS) includes one or more Base Band Units (BBUs). Each of the one or more BBUs has one or more digital outputs. The system also includes a plurality of Digital Multiplexer Units (DMUs) coupled to each other and operable to route signals between the plurality of DMUs. Each of the plurality of DMUs is operable to receive one or more digital inputs from the one or more BBUs. The system further includes a plurality of Digital Remote Units (DRUs) coupled to the plurality of DMUs and operable to transport signals between the plurality of DRUs and one or more of the plurality of DMUs.Type: GrantFiled: January 6, 2020Date of Patent: January 24, 2023Assignee: DALI WIRELESS, INC.Inventors: Shawn Patrick Stapleton, Sasa Trajkovic
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Patent number: 11564110Abstract: In some embodiments of the invention, a system for managing resource use in a Distributed Antenna System is provided. The system may include: a plurality of Digital Remote Units (DRUs) configured to send and receive wireless radio signals; a plurality of sectors, each configured to send and receive wireless radio signals; and a plurality of inter-connected Digital Access Units (DAUs), each configured to communicate with at least one of the DRUs via optical signals, and each being coupled to at least one of the sectors.Type: GrantFiled: November 6, 2012Date of Patent: January 24, 2023Assignee: DALI WIRELESS, INC.Inventors: Shawn Patrick Stapleton, Daryl Meerkerk
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Patent number: 11418155Abstract: A RF-digital hybrid mode power amplifier system for achieving high efficiency and high linearity in wideband communication systems is disclosed. The present invention is based on the method of adaptive digital predistortion to linearize a power amplifier in the RF domain. The power amplifier characteristics such as variation of linearity and asymmetric distortion of the amplifier output signal are monitored by the narrowband feedback path and controlled by the adaptation algorithm in a digital module. Therefore, the present invention could compensate the nonlinearities as well as memory effects of the power amplifier systems and also improve performances, in terms of power added efficiency, adjacent channel leakage ratio and peak-to-average power ratio. The present disclosure enables a power amplifier system to be field reconfigurable and support multi-modulation schemes (modulation agnostic), multi-carriers and multi-channels.Type: GrantFiled: October 3, 2019Date of Patent: August 16, 2022Assignee: DALI WIRELESS, INC.Inventors: Wan Jong Kim, Kyoung Joon Cho, Shawn Patrick Stapleton, Jong Heon Kim, Dali Yang
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Patent number: 11395153Abstract: A system for networking Wi-Fi Access Points in a Distributed Antenna System includes a plurality of Digital Access Units (DAUs). The plurality of DAUs are coupled and operable to route signals between the plurality of DAUs. The system also includes a plurality of Digital Remote Units (DRUs) coupled to the plurality of DAUs and operable to transport signals between DRUs and DAUs and a plurality of DAU ports and DRU ports. The system further includes a Framer/Deframer, wherein the cellular payload data is separated from the IP data and a network switch. The IP data from a plurality of DAU and DRU ports are buffered and routed to a plurality of DAU and DRU ports. Furthermore, the system includes a plurality of Wi-Fi access points coupled via a mesh network to Wi-Fi access points connected to a plurality of DRUs.Type: GrantFiled: June 3, 2020Date of Patent: July 19, 2022Assignee: DALI WIRELESS, INC.Inventors: Sasa Trajkovic, Shawn Patrick Stapleton, Qianqi Zhuang
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Patent number: 11368957Abstract: The present disclosure is a novel utility of a software defined radio (SDR) based Distributed Antenna System (DAS) that is field reconfigurable and support multi-modulation schemes (modulation-independent), multi-carriers, multi-frequency bands and multi-channels. The present disclosure enables a high degree of flexibility to manage, control, enhance, facilitate the usage and performance of a distributed wireless network such as flexible simulcast, automatic traffic load-balancing, network and radio resource optimization, network calibration, autonomous/assisted commissioning, carrier pooling, automatic frequency selection, frequency carrier placement, traffic monitoring, traffic tagging, pilot beacon, etc.Type: GrantFiled: January 8, 2020Date of Patent: June 21, 2022Assignee: DALI WIRELESS, INC.Inventors: Paul Lemson, Shawn Patrick Stapleton, Sasa Trajkovic, Albert S. Lee
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Patent number: 11336372Abstract: A system for data transport in a Distributed Antenna System (DAS) includes a plurality of remote Digital Access Units (DAUs) located at a Remote location. The plurality of remote DAUs are coupled to each other and operable to transport digital signals between the plurality of remote DAUs. The system also includes a plurality of central hubs. Each of the plurality of central hubs is in communication with one of the remote DAUs using an electrical communications path. The system further includes a plurality of transmit/receive cells. Each of the plurality of transmit/receive cells includes a plurality of remote hubs. Each of the remote hubs in one of the plurality of transmit/receive cells is in communication with one of the plurality of central hubs using an optical communications path.Type: GrantFiled: February 12, 2021Date of Patent: May 17, 2022Assignee: DALI WIRELESS, INC.Inventors: Shawn Patrick Stapleton, Sasa Trajkovic
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Patent number: 11297603Abstract: A remote radio head unit (RRU) system for achieving high data rate communications in a Distributed Antenna System is disclosed. The Distributed Antenna System is configured as a Neutral Host enabling multiple operators to exist on one DAS system. The present disclosure enables a remote radio head unit to be field reconfigurable and support multi-modulation schemes (modulation-independent), multi-carriers, multi-frequency bands and multi-channels. As a result, the remote radio head system is particularly suitable for wireless transmission systems, such as base-stations, repeaters, and indoor signal coverage systems.Type: GrantFiled: May 8, 2019Date of Patent: April 5, 2022Assignee: DALI WIRELESS, INC.Inventors: Paul Lemson, Shawn Patrick Stapleton, Sasa Trajkovic
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Patent number: 11277172Abstract: A system for transporting data in a Distributed Antenna System (DAS) includes at least one Digital Access Unit (DAU) and a plurality of Digital Remote Units (DRUs) coupled to the at least one DAU. The plurality of DRUs are operable to transport signals between the plurality of DRUs and the at least one DAU. The at least one DAU includes: a data transport coder comprising: a framer, an encoder, a scrambler, and a serializer and a data transport decoder comprising: a deserializer, a decoder, a descrambler, a frame synchronizer, and a deframer.Type: GrantFiled: August 2, 2019Date of Patent: March 15, 2022Assignee: DALI WIRELESS, INC.Inventors: Qianqi Zhuang, Shawn Patrick Stapleton
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Patent number: 11212751Abstract: A method of determining a carrier power in a communications system including a processor includes a) setting a power differential between a reference carrier and one or more carriers, b) measuring a number of satisfied users at the power differential, and c) measuring a capacity for the satisfied users at the power differential. The method also includes d) increasing the power differential by a predetermined amount and e) determining, using the processor, that the number of satisfied users at the increased power differential is greater than or equal to the number of satisfied users at the power differential. The method further includes f) repeating a)-c) and g) setting the carrier power at an iterated power level.Type: GrantFiled: August 8, 2019Date of Patent: December 28, 2021Assignee: DALI WIRELESS, INC.Inventors: Seyed Amin Hejazi, Shawn Patrick Stapleton
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Patent number: 11159129Abstract: An embodiment of the invention is a time-delay invariant predistortion approach to linearize power amplifiers in wireless RF transmitters. The predistortion architecture is based on the stored-compensation or memory-compensation principle by using a combined time-delay addressing method, and therefore, the architecture has an intrinsic, self-calibrating time-delay compensation function. The predistortion architecture only uses a lookup table to conduct both the correction of non-linear responses of a power amplifier and the compensation of any time-delay effects presented in the same system. Due to the time-delay invariant characteristic, the predistortion design has a wider dynamic range processing advantage for wireless RF signals, and therefore can be implemented in multi-carrier and multi-channel wireless systems.Type: GrantFiled: June 15, 2020Date of Patent: October 26, 2021Assignee: DALI WIRELESS, INC.Inventors: Dali Yang, Jia Yang
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Patent number: 11140603Abstract: Methods and apparatuses are presented for balancing non-uniformly distributed network traffic in a wireless communications system having a plurality of digital remote units (DRUs). In some embodiments, a method comprises partitioning the plurality of DRUs into a plurality of DRU sectors, and dynamically repartitioning the plurality of DRU sectors depending on traffic conditions in at least one of the DRU sectors, such that the repartitioning satisfies at least one of a soft capacity constraint or a hard capacity constraint. The dynamic repartitioning may be based on at least one optimization algorithm.Type: GrantFiled: January 2, 2020Date of Patent: October 5, 2021Assignee: DALI WIRELESS, INC.Inventors: Seyed Amin Hejazi, Shawn Patrick Stapleton
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Patent number: 11129076Abstract: One exemplary embodiment is directed to an efficient baseband predistortion linearization method. The exemplary method at least reduces the spectral regrowth and compensates for memory effects in wideband communication systems. The exemplary method uses an effective multiplexing modulation technique, such as wideband code division multiple access and orthogonal frequency division multiplexing. Another exemplary aspect utilizes a piecewise pre-equalized lookup table based predistortion, which is a cascade of a lookup table predistortion and piecewise pre-equalizers.Type: GrantFiled: January 30, 2020Date of Patent: September 21, 2021Assignee: DALI WIRELESS, INC.Inventors: Wan-Jong Kim, Kyoung Joon Cho, Jong Heon Kim, Shawn Patrick Stapleton
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Patent number: 11057691Abstract: A system for routing signals in a Distributed Antenna System (DAS) includes one or more local Digital Access Units (DAUs) located at a local location and one or more remote DAUs located at one or more remote locations. Each of the one or more local DAUs includes an optical port coupled to an upstream unit. The upstream unit includes at least one of a repeater, a baseband unit, a Base Transceiver Station (BTS), or a DAU. The one or more remote DAUs are coupled to the one or more local DAUs via one or more optical cables. A distance between the local location and each of the one or more remote locations is greater than two kilometers.Type: GrantFiled: July 15, 2020Date of Patent: July 6, 2021Assignee: DALI WIRELESS, INC.Inventors: Shawn Patrick Stapleton, Sasa Trajkovic
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Patent number: 11026232Abstract: The present disclosure is a novel utility of a software defined radio (SDR) based Distributed Antenna System (DAS) that is field reconfigurable and support multi-modulation schemes (modulation-independent), multi-carriers, multi-frequency bands and multi-channels. The present disclosure enables a high degree of flexibility to manage, control, enhance, facilitate the usage and performance of a distributed wireless network such as flexible simulcast, automatic traffic load-balancing, network and radio resource optimization, network calibration, autonomous/assisted commissioning, carrier pooling, automatic frequency selection, frequency carrier placement, traffic monitoring, traffic tagging, pilot beacon, etc.Type: GrantFiled: July 30, 2020Date of Patent: June 1, 2021Assignee: DALI WIRELESS, INC.Inventors: Paul Lemson, Shawn Patrick Stapleton, Sasa Trajkovic, Albert S. Lee
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Patent number: 11013005Abstract: The present disclosure is a novel utility of a software defined radio (SDR) based Distributed Antenna System (DAS) that is field reconfigurable and support multi-modulation schemes (modulation-independent), multi-carriers, multi-frequency bands and multi-channels. The present disclosure enables a high degree of flexibility to manage, control, enhance, facilitate the usage and performance of a distributed wireless network such as flexible simulcast, automatic traffic load-balancing, network and radio resource optimization, network calibration, autonomous/assisted commissioning, carrier pooling, automatic frequency selection, frequency carrier placement, traffic monitoring, traffic tagging, pilot beacon, etc.Type: GrantFiled: August 21, 2020Date of Patent: May 18, 2021Assignee: DALI WIRELESS, INC.Inventors: Paul Lemson, Shawn Patrick Stapleton, Sasa Trajkovic, Albert S. Lee
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Patent number: 11006343Abstract: The present disclosure is a novel utility of a software defined radio (SDR) based Distributed Antenna System (DAS) that is field reconfigurable and support multi-modulation schemes (modulation-independent), multi-carriers, multi-frequency bands and multi-channels. The present invention enables a high degree of flexibility to manage, control, enhance, facilitate the usage and performance of a distributed wireless network such as Flexible Simulcast, automatic traffic load-balancing, network and radio resource optimization, network calibration, autonomous/assisted commissioning, carrier pooling, automatic frequency selection, frequency carrier placement, traffic monitoring, traffic tagging, pilot beacon, etc. As a result, a DAS in accordance with the present invention can increase the efficiency and traffic capacity of the operators' wireless network.Type: GrantFiled: May 13, 2019Date of Patent: May 11, 2021Assignee: DALI WIRELESS, INC.Inventors: Shawn Patrick Stapleton, Paul Lemson, Bin Lin, Albert S. Lee
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Patent number: 10985965Abstract: A power amplifier system includes an input operable to receive an original value that reflects information to be communicated and an address data former operable to generate a digital lookup table key. The power amplifier system also includes a predistortion lookup table coupled to the address data former and a power amplifier having an output and coupled to the predistortion lookup table. The power amplifier system further includes a feedback loop providing a signal associated with the output of the power amplifier to the predistortion lookup table and a switch disposed in the feedback loop and operable to disconnect the predistortion lookup table from the output of the power amplifier.Type: GrantFiled: December 21, 2018Date of Patent: April 20, 2021Assignee: DALI WIRELESS, INC.Inventors: Dali Yang, Jia Yang