{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9853702","patent":{"patent_number":"US-9853702","title":"Methods for channel estimation in OFDMA based hybrid beamforming (HBF) systems","assignee":null,"inventors":[],"filing_date":"2016-01-13T00:00:00.000Z","publication_date":"2017-12-26T00:00:00.000Z","cpc_codes":["H04B","H04B","H04B","H04B","H04L","H04L"],"num_claims":22,"abstract":"The method is for channel estimation with transmitter (Tx) and receiver (Rx) beam training in an OFDMA HBF system wherein the transmitter and receiver communicate over a channel and each include a plurality of Radio Frequency (RF) chains and an antenna array of antenna elements corresponding to each RF chain, and wherein the transmitter includes an analog beamformer and the receiver includes an analog combiner. The method includes generating a set of orthogonal Tx training beams for the transmitter based upon a number of antenna elements in the transmitter antenna array, and generating a set of orthogonal Rx training beams for the receiver based upon a number of antenna elements in the receiver antenna array. The method includes probing the channel by simultaneously transmitting OFDMA preambles with each RF chain using a different one of the orthogonal Tx training beams and receiving the OFDMA preambles with each of the orthogonal Rx training beams in a scheduling sequence that includes a pairing of each orthogonal Tx training beam with each orthogonal Rx training beam, and performing channel estimation based upon probing feedback results including a channel response between different pairs of the orthogonal Tx training beams and the orthogonal Rx training beams."},"analysis":{"summary":"Methods for Channel Estimation in Ofdma Based Hybrid Beamforming (hbf) Systems provides a novel approach to channel estimation in orthogonal frequency-division multiple access (OFDMA) hybrid beamforming (HBF) systems, enhancing wireless communication performance. The patent addresses the problem of inefficient channel estimation in complex wireless environments, which leads to suboptimal beamforming, reduced data rates, and increased interference. The key technical approach involves generating a set of orthogonal training beams for both the transmitter and receiver and probing the channel with OFDMA preambles to accurately estimate the channel response between different beam pairs. This precise channel estimation enables more effective beamforming, resulting in enhanced signal quality, increased data throughput, and reduced power consumption. The business value lies in improved wireless network performance, extended battery life for mobile devices, and a better user experience. The market opportunity is significant, as the demand for high-speed, reliable wireless communication continues to grow, particularly in the context of 5G, IoT, and other emerging technologies. This technology can be implemented in a wide range of wireless devices and networks, making it a versatile solution for improving wireless communication performance.","layman_explanation":"Methods for Channel Estimation in Ofdma Based Hybrid Beamforming (hbf) Systems is a technological advancement designed to improve the efficiency and reliability of wireless communication. It specifically targets the challenges of channel estimation in modern wireless networks, which are becoming increasingly complex due to the growing number of devices and data-intensive applications.\n\n**1. What Problem Does This Solve?**\n\nImagine trying to have a conversation in a crowded room. The more people there are, the harder it is to hear and be heard. Wireless networks face a similar problem. As more devices connect and transmit data, the wireless channels become congested, leading to slower data rates, dropped connections, and a frustrating user experience. Existing solutions for channel estimation, which are crucial for optimizing signal transmission, often struggle to keep up with the complexity of modern wireless environments. They can be inaccurate and inefficient, resulting in suboptimal network performance.\n\n**2. How Does It Work?**\n\nThis innovation works by optimizing the way wireless devices estimate the characteristics of the communication channel. Think of it like a sophisticated tuning system for your radio. Instead of relying on a simple antenna, this technology uses multiple antennas and advanced signal processing techniques to accurately measure the channel conditions. It then uses this information to focus the wireless signal directly at the intended receiver, minimizing interference and maximizing signal strength. One key aspect is the use of orthogonal training beams, which are like distinct spotlights that don't overlap, allowing for a clearer picture of the channel. By probing the channel with these beams, the system can accurately determine the best way to transmit data.\n\n**3. Why Does This Matter?**\n\nThe impact of this technology is significant. For consumers, it means faster download and upload speeds, more reliable connections, and longer battery life for mobile devices. For businesses, it translates to improved network capacity, reduced operating costs, and a better overall user experience for employees and customers. The market opportunity is vast, as the demand for high-speed, reliable wireless communication continues to grow. This patent offers a competitive advantage to companies that implement it, allowing them to offer superior wireless services and products. The potential ROI is substantial, as improved network performance can lead to increased revenue and customer satisfaction.\n\n**4. What's Next?**\n\nThe future of this technology is promising. As wireless networks continue to evolve, this innovation can be further refined and adapted to meet the growing demands of emerging applications, such as 5G, IoT, and augmented reality. Market adoption is expected to accelerate as wireless service providers and device manufacturers seek to improve their network performance and offer a better user experience. Investment in this technology can lead to significant returns, as it addresses a critical need in the rapidly expanding wireless communication market.","technical_analysis":"The Methods for Channel Estimation in Ofdma Based Hybrid Beamforming (hbf) Systems patent details a system that significantly improves channel estimation accuracy in wireless communication. The technical architecture centers around a transmitter (Tx) and receiver (Rx) communicating over a channel, each equipped with multiple Radio Frequency (RF) chains and antenna arrays. The transmitter incorporates an analog beamformer, while the receiver uses an analog combiner.\n\nThe core innovation lies in the generation and utilization of orthogonal training beams. The transmitter generates a set of orthogonal Tx training beams based on the number of antenna elements in its array. Similarly, the receiver generates a set of orthogonal Rx training beams. These orthogonal beams ensure minimal interference during the channel probing process.\n\nImplementation involves simultaneously transmitting OFDMA preambles using each RF chain with a different orthogonal Tx training beam. The receiver receives these preambles with each of its orthogonal Rx training beams in a scheduled sequence, pairing each Tx beam with each Rx beam. This comprehensive probing allows for a detailed channel response estimation.\n\nThe channel estimation algorithm leverages the feedback from this probing process. It calculates the channel response between different pairs of orthogonal Tx and Rx training beams. This information is then used to optimize the beamforming and combining weights, maximizing the signal-to-noise ratio (SNR) and improving data throughput.\n\nIntegration with existing wireless systems requires careful consideration of the OFDMA preamble structure and the scheduling sequence for Tx and Rx beam pairing. The algorithm's performance is highly dependent on the orthogonality of the training beams and the accuracy of the channel response estimation. Code-level implications include optimized matrix operations for beamforming weight calculation and efficient signal processing for channel response estimation. This patent offers a robust and efficient solution for channel estimation in OFDMA HBF systems, addressing the growing demands for high-performance wireless communication.","business_analysis":"The Methods for Channel Estimation in Ofdma Based Hybrid Beamforming (hbf) Systems patent represents a significant opportunity in the rapidly expanding wireless communication market. The increasing demand for higher data rates, lower latency, and improved reliability is driving the need for advanced channel estimation and beamforming techniques.\n\nThe market opportunity size is substantial, encompassing various sectors, including telecommunications, mobile devices, IoT, and industrial automation. The adoption of 5G and other advanced wireless technologies is further fueling the demand for efficient channel estimation solutions.\n\nThis patent offers several competitive advantages. Its ability to accurately estimate channel response in complex wireless environments leads to improved data throughput, reduced interference, and extended battery life. These advantages translate into a better user experience and increased network capacity for wireless service providers.\n\nThe revenue potential is considerable. Wireless network operators can leverage this technology to enhance their network performance and attract more subscribers. Mobile device manufacturers can integrate this technology into their products to offer superior wireless connectivity. Licensing opportunities also exist for companies seeking to incorporate this technology into their own products and services.\n\nPotential business models include direct sales of the technology, licensing agreements, and integration into existing wireless communication platforms. Strategic positioning involves targeting key players in the wireless communication ecosystem, such as network operators, device manufacturers, and technology providers.\n\nROI projections are highly favorable, given the increasing demand for high-performance wireless communication and the competitive advantages offered by this technology. By investing in this patent, companies can gain a significant edge in the wireless market and capitalize on the growing demand for advanced channel estimation solutions.","faqs":null,"topics":["OFDMA","hybrid beamforming","channel estimation","wireless communication","signal processing"],"tech_cluster":null},"seo":{"title":"Methods for Channel Estimation in Ofdma Based Hybrid Beamforming (hbf) Systems - Patent US-9853702","description":"Discover how Methods for Channel Estimation in Ofdma Based Hybrid Beamforming (hbf) Systems improves wireless communication. Full patent analysis, claims, and technical details.","keywords":["OFDMA","hybrid beamforming","channel estimation","wireless communication","signal processing","patent","patent US-9853702"]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9853702","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9853702","citation_suggestion":"Patentable. \"Methods for channel estimation in OFDMA based hybrid beamforming (HBF) systems\" (US-9853702). https://patentable.app/patents/US-9853702","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9853702","json":"https://patentable.app/api/llm-context/US-9853702","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T14:39:05.561Z"}