System and method for direct-to-mobile transmitter deployment in a network
Low-power D2M transmitters on cell towers address space and power challenges by integrating with mobile networks, ensuring efficient and cost-effective signal transmission in densely populated areas.
Patent Information
- Application Number
- PCT/IN2025/051414
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-09-02
- Filing Date
- 2025-09-01
- Publication Date
- 2026-03-05
AI Technical Summary
Conventional broadcast transmitters require extensive physical space and significant power resources, face challenges in densely populated areas due to space constraints and interference, and suffer from signal degradation over distance.
Deploy low-power Direct-to-Mobile (D2M) transmitters on existing cell towers, utilizing a single frequency reuse model to integrate with mobile networks, ensuring synchronized and efficient signal transmission.
Enhances network coverage and reduces infrastructure costs, providing high-definition content delivery without overloading cellular networks, while minimizing interference and signal degradation.
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Figure IN2025051414_05032026_PF_FP_ABST
Abstract
Description
SYSTEM AND METHOD FOR DIRECT-TO-MOBILE TRANSMITTER DEPLOYMENT IN A NETWORKRESERVATION OF RIGHTS
[0001] A portion of the disclosure of this patent document contains material, which is subject to intellectual property rights such as, but are not limited to, copyright, design, trademark, Integrated Circuit (IC) layout design, and / or trade dress protection, belonging to Jio Platforms Limited (JPL) or its affiliates (hereinafter referred as owner). The owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent files or records, but otherwise reserves all rights whatsoever. All rights to such intellectual property are fully reserved by the owner.FIELD OF DISCLOSURE
[0002] The embodiments of the present disclosure generally relate to communication networks. In particular, the present disclosure relates to a system and a method for providing Direct-to-Mobile (D2M) transmission in a network.DEFINITIONS
[0003] As used in the present disclosure, the following terms are generally intended to have the meaning as set forth below, except to the extent that the context in which they are used to indicate otherwise.
[0004] The term ‘Transceiver’ used herein in the specification refers to a device that includes both transmitter and receiver functions, allowing for the sending and receiving of data signals over a communication medium.
[0005] The term ‘Broadcast transmitters’ used herein in the specification refers to devices that send out radio, television, or digital signals over the airwaves to a wide audience, enabling the distribution of audio, video, or data content across various regions.
[0006] The term ‘Ethernet’ used herein in the specification refers to a networking technology that enables devices to communicate over a local areanetwork (LAN) by using packet-based data transmission through wired connections.
[0007] The term ‘Double Data Rate (DDR) memory’ used herein in the specification refers to a type of computer memory that transfers data on both the rising and falling edges of the clock signal, effectively doubling the data transfer rate compared to traditional single data rate memory.
[0008] The term ‘General-Purpose Input / Output (GPIO) bank’ used herein in the specification refers to a collection of pins or ports on a microcontroller or integrated circuit that can be configured for various input and output functions, allowing the device to interface with and control external peripherals.
[0009] The term ‘ Digital -to-Analog Converters (DACs)’ used herein in the specification refers to electronic components that convert digital signals into continuous analog signals, enabling digital systems to interface with analog devices or systems.
[0010] The term ‘Power amplifiers’ used herein in the specification refers to electronic devices that increase the power of a signal, boosting its amplitude to drive output devices such as speakers or antennas and ensuring that the signal is strong enough for effective transmission or operation.
[0011] The term ‘Global Positioning System (GPS)’ used herein in the specification refers to a satellite-based navigation system that provides precise location and time information using signals from satellites' network.
[0012] The term ‘Multiplexer (MUX)’ used herein in the specification refers to an electronic device that selects one of several input signals and forwards it to a single output line, enabling multiple signals to share a single communication channel or resource.
[0013] The term ‘Microcontroller Unit (MCU)’ used herein in the specification refers to a compact integrated circuit that includes processor, memory,and input / output peripherals and is designed to perform specific control functions in embedded systems and applications.
[0014] The term ‘synchronizer’ used herein in the specification refers to an electronic or digital circuit that ensures multiple signals or components operate in harmony by aligning their timing and coordinating their data transfer or processing.
[0015] The term ‘Gigabit Ethernet Physical Layer (GE PHY)’ used herein in the specification refers to the hardware component responsible for the physical transmission and reception of Gigabit Ethernet signals, including the encoding, decoding, and signal conditioning required to facilitate high-speed data communication over Ethernet networks.
[0016] The term ‘Voltage Regulator Modules (VRMs)’ used herein in the specification refers to electronic components that regulate and supply a stable voltage to various parts of a system, ensuring consistent power levels to components such as processors and memory, and protecting them from voltage fluctuations.
[0017] These definitions are in addition to those expressed in the art.BACKGROUND OF DISCLOSURE
[0018] The following description of related art is intended to provide background information pertaining to the field of the disclosure. This section may include certain aspects of the art that may be related to various features of the present disclosure. However, it should be appreciated that this section be used only to enhance the understanding of the reader with respect to the present disclosure, and not as admissions of prior art.
[0019] Wireless communication technology has rapidly evolved over the past few decades. The first generation of wireless communication technology was analog technology that offered only voice services. Further, when the second- generation (2G) technology was introduced, text messaging and data services became possible. The 3 G technology marked the introduction of high-speed internet access, mobile video calling, and location-based services. The fourth-generation(4G) technology revolutionized wireless communication with efficient data speeds, improved network coverage, and security. Currently, the fifth-generation (5G) technology is being deployed, with even efficient data speeds, low latency, and the ability to connect multiple devices simultaneously. The sixth generation (6G) technology promises to build upon these advancements, pushing the boundaries of wireless communication even further.
[0020] Broadcast transmitters are essential in disseminating audio and video content to a broad audience through radio or television signals. The broadcast transmitters convert audio, video, or data signals into electromagnetic waves, which are then broadcasted over a wide area to be received by various devices such as radios, televisions, and mobile receivers. The broadcast transmitters are critical for mass communication, enabling the distribution of news, entertainment, and information across large geographic regions. The broadcast transmitters are required to deliver wide-reaching radio and television signals to large audiences. However, the deployment and operation of conventional broadcast transmitters are associated with significant challenges.
[0021] Firstly, the conventional broadcast transmitters demand extensive infrastructure to function effectively. The equipment for the conventional broadcast transmitters is generally large and complex, necessitating substantial physical space for installation. This space is required for the transmitter and supporting systems, such as cooling units, power supplies, and maintenance facilities. Additionally, conventional broadcast transmitters operate at high power levels, often measured in kilowatts (kW), which requires considerable power resources to ensure adequate signal transmission.
[0022] Deploying conventional broadcast transmitters in densely populated urban areas presents difficulties. The limited availability of space in the environment makes it challenging to find suitable locations for the large footprint of conventional broadcast transmitters. Furthermore, the installation process involves significant infrastructure development, including setting up electrical gridsto support high power demands, cooling systems to handle heat dissipation, and antenna structures for signal transmission. The high costs and logistical complexity of establishing this infrastructure in urban settings with high real estate values can be a significant barrier.
[0023] In addition to infrastructure and deployment challenges, conventional broadcast transmitters are affected by interference and signal degradation. The conventional broadcast transmitters operate on specific radio frequencies, which can be disrupted by signals from other electronic devices and transmitters operating on the same or adjacent frequencies. The interference can degrade the clarity and reliability of the broadcast signal. Moreover, as the distance between the conventional broadcast transmitters and the receiver increases, the strength and quality of the signal generally diminish, a phenomenon known as signal attenuation. This degradation results in potential service disruptions and reduced broadcast effectiveness, particularly for users far from the conventional broadcast transmitters.
[0024] There is, therefore, a need in the art to provide a method and a system that can overcome the shortcomings of the existing prior arts.OBJECTIVES OF THE PRESENT DISCLOSURE
[0025] Some of the objectives of the present disclosure, which at least one embodiment herein satisfies, are as listed herein below.
[0026] An objective of the present disclosure is to provide a system and a method for deploying a low-power Direct-to-Mobile (D2M) transmitter in a network.
[0027] Another objective of the present disclosure is to leverage existing mobile infrastructure to deploy the D2M transmitter.
[0028] Another objective of the present disclosure is to provide the D2M transmitter that can be mounted on existing cell towers and operate on a single frequency reuse model.
[0029] Another objective of the present disclosure is to provide the D2M transmitter that enhances network coverage by seamlessly integrating with an established mobile network while significantly reducing infrastructure costs.
[0030] Another objective of the present disclosure is to provide an efficient and cost-effective broadcasting technique, particularly in densely populated areas where conventional broadcast techniques face significant limitations.
[0031] Other objectives and advantages of the present disclosure will be more apparent from the following description, which is not intended to limit the scope of the present disclosure.SUMMARY
[0032] In an exemplary embodiment, a system for providing Direct-to- Mobile (D2M) transmission in a network is disclosed. The system includes one or more transmitters coupled with the transceiver, wherein each of the one or more transmitters is configured to receive one or more data streams from a transceiver by at least one data channel, transmit one of the data streams to a processing module, wherein the processing module is configured to process the transmitted data streams by performing one or more predefined operations and generating a processed data stream and convert the generated processed data stream into an analog Radio Frequency (RF) signal using one or more Digital-to-Analog Converters (DACs). The system includes an RF circuitry configured to receive the analog RF signal and generate an amplified RF signal by amplifying the received analog RF signal by a predefined value. The system includes a plurality of antennas configured to receive the amplified signal and transmit the amplified RF signal in the network.
[0033] In some embodiments, the RF circuitry includes one or more gain stages and at least one Power Amplifier (PA).
[0034] In some embodiments, the one or more predefined operations comprising a Low-Density Parity-Check (LDPC) encoding, a QuadratureAmplitude Modulation (QAM) modulation, and an Orthogonal Frequency -Division Multiplexing (OFDM).
[0035] In some embodiments, each of the plurality of antennas is configured to transmit the amplified RF signal omni-directionally.
[0036] In some embodiments, each of the one or more transmitters is configured to operate on non-overlapping frequency channels.
[0037] In some embodiments, a Global Positioning System (GPS) is configured to generate a GPS signal representing a precise timing of transmission and reception of signals from each of the plurality of antennas.
[0038] In some embodiments, a synchronizer unit is communicatively coupled with the GPS and is configured to receive the GPS signal and synchronize the phase and frequency of the amplified RF signal transmitted by each of the plurality of antennas based on the received GPS signal.
[0039] In some embodiments, the transceiver is configured encode the one of the data streams by employing at least one of a Forward Error Correction (FEC) encoding, a Low-Density Parity Check (LDPC) encoding, a bit interleaver encoding, and a Noise Uncertainty Compensation (NUC) encoding.
[0040] In an exemplary embodiment, a method for transmitting Direct-to- Mobile (D2M) content in a network is disclosed. The method includes receiving, by one or more transmitters, one or more data streams from a transceiver by at least one data channel. The method includes transmitting, by each of the one or more transmitters, one of the data streams to a processing module, wherein the processing module is configured to process the transmitted data streams by performing one or more predefined operations and generating a processed data stream. The method includes converting, by each of the one or more transmitters, the generated processed data stream into an analog Radio Frequency (RF) signal using one or more Digital-to-Analog Converters (DACs). The method includes receiving, by a RF circuitry, the analog RF signal to generate an amplified RF signal by amplifyingthe received analog RF signal by a predefined value. The method includes receiving, by a plurality of antennas, the amplified RF signal and transmit the amplified RF signal in the network.
[0041] In an exemplary embodiment, a transmitter for Direct-to-Mobile (D2M) transmission in a network is disclosed. The one or more transmitters are coupled with a transceiver, wherein each of the one or more transmitters is configured to receive one or more data streams from the transceiver via at least one data channel, transmit one of the data streams to a processing module, wherein the processing module is configured to process the transmitted data streams by performing one or more predefined operations and generating a processed data stream and convert the generated processed data stream into an analog Radio Frequency (RF) signal using one or more Digital-to-Analog Converters (DACs). The system includes a RF circuitry configured to receive the analog RF signal and generate an amplified RF signal by amplifying the received analog RF signal by a predefined value. The system includes a plurality of antennas configured to receive the amplified signal and transmit the amplified RF signal in the network.
[0042] In an exemplary embodiment, a computer program product includes a non-transitory computer-readable medium including instructions that, when executed by one or more processors, cause the one or more processors to execute a method for transmitting Direct-to-Mobile (D2M) content in a network. The method includes receiving, by one or more transmitters, one or more data streams from a transceiver by at least one data channel. The method includes transmitting, by each of the one or more transmitters, one of the data streams to a processing module, wherein the processing module is configured to process the transmitted data streams by performing one or more predefined operations and generating a processed data stream. The method includes converting, by each of the one or more transmitters, the generated processed data stream into an analog Radio Frequency (RF) signal using one or more Digital-to-Analog Converters (DACs). The method includes receiving, by a RF circuitry, the analog RF signal to generate an amplified RF signal by amplifying the received analog RF signal by a predefined value. The methodincludes receiving, by a plurality of antennas, the amplified RF signal and transmit the amplified RF signal in the network.
[0043] The foregoing general description of the illustrative embodiments and the following detailed description thereof are merely exemplary aspects of the teachings of this disclosure and are not restrictive.BRIEF DESCRIPTION OF DRAWINGS
[0044] The accompanying drawings, which are incorporated herein, and constitute a part of this disclosure, illustrate exemplary embodiments of the disclosed methods and systems in which like reference numerals refer to the same parts throughout the different drawings. Components in the drawings are not necessarily to scale, emphasis instead being placed upon clearly illustrating the principles of the present disclosure. Some drawings may indicate the components using block diagrams and may not represent the internal circuitry of each component. It will be appreciated by those skilled in the art that disclosure of such drawings includes the disclosure of electrical components, electronic components or circuitry commonly used to implement such components.
[0045] FIG. 1 illustrates an exemplary network architecture for a Direct-to- Mobile (D2M) transmitter deployment in a network, in accordance with embodiments of the present disclosure.
[0046] FIG. 2 illustrates an exemplary architecture of the system for the D2M transmitter deployment in the network, in accordance with embodiments of the present disclosure.
[0047] FIG. 3 illustrates an exemplary block diagram of the system for the D2M transmitter deployment in the network, in accordance with embodiments of the present disclosure.
[0048] FIG. 4 illustrates an exemplary flow diagram of performing a method for the D2M transmitter deployment in the network, in accordance with embodiments of the present disclosure.
[0049] FIG. 5 illustrates an exemplary computer system in which or with which the system may be implemented in accordance with an embodiment of the present disclosure.
[0050] The foregoing shall be more apparent from the following more detailed description of the disclosure.LIST OF REFERENCE NUMERALS100 - Network Architecture102-1, 102-2, 102-N - Users104-1, 104-2, 104-3, 104N - One or more User Equipments (UEs)106 - Network108 - System200 - System architecture202 - Transceiver204 - Connector206 - Memory208 - Ethernet210 - Double Data Rate (DDR) memory212 - General-Purpose Input / Output (GPIO) bank214-1, 214-2. . . ,214-N - One or more Radio Frequency (RF) transmitters216-1, 216-2, ..., 2I6-N - One or more Digital-To-Analog Converters (DACs)218-1, 218-2. , .218-N - Plurality of amplifiers 1220-1, 220-2, 220-N - Plurality of attenuators222-1, 222-2...222 -N - Plurality of amplifiers 2224- 1 , 224-2. . . .224, N - Plurality of Power Amplifiers (PA)-1, 226-2. . . ,226-N - Plurality of antennas, 232 - NOR flash - Multiplexer (MUX) - Microcontroller Unit (MCU) - Synchronizer Unit - Global Positioning System (GPS) - Antenna - Interface(s) - Gigabit Ethernet Physical Eayer (GE PHY) - Temperature sensor - DC-DC power supply - Voltage Regulator Modules (VRMs) - Block diagram - Processing module - Radio Frequency (RF) circuitry - Database - Flow diagram - Other components of 5G control network - Flow diagram - Computer system - External storage device - Bus - Main memory640 - Read only memory650 - Mass storage device660 - Communication port(s)670 - ProcessorDETAILED DESCRIPTION OF DISCLOSURE
[0051] In the following description, for the purposes of explanation, various specific details are set forth in order to provide a thorough understanding of embodiments of the present disclosure. It will be apparent, however, that embodiments of the present disclosure may be practiced without these specific details. Several features described hereafter can each be used independently of one another or with any combination of other features. An individual feature may not address all of the problems discussed above or might address only some of the problems discussed above. Some of the problems discussed above might not be fully addressed by any of the features described herein.
[0052] The ensuing description provides exemplary embodiments only, and is not intended to limit the scope, applicability, or configuration of the disclosure. Rather, the ensuing description of the exemplary embodiments will provide those skilled in the art with an enabling description for implementing an exemplary embodiment. It should be understood that various changes may be made in the function and arrangement of elements without departing from the spirit and scope of the disclosure as set forth.
[0053] Specific details are given in the following description to provide a thorough understanding of the embodiments. However, it will be understood by one of ordinary skill in the art that the embodiments may be practiced without these specific details. For example, circuits, systems, networks, processes, and other components may be shown as components in block diagram form in order not to obscure the embodiments in unnecessary detail. In other instances, well-knowncircuits, processes, algorithms, structures, and techniques may be shown without unnecessary detail in order to avoid obscuring the embodiments.
[0054] Also, it is noted that individual embodiments may be described as a process which is depicted as a flowchart, a flow diagram, a data flow diagram, a structure diagram, or a block diagram. Although a flowchart may describe the operations as a sequential process, many of the operations can be performed in parallel or concurrently. In addition, the order of the operations may be re-arranged. A process is terminated when its operations are completed but could have additional steps not included in a figure. A process may correspond to a method, a function, a procedure, a subroutine, a subprogram, etc. When a process corresponds to a function, its termination can correspond to a return of the function to the calling function or the main function.
[0055] The word “exemplary” and / or “demonstrative” is used herein to mean serving as an example, instance, or illustration. For the avoidance of doubt, the subject matter disclosed herein is not limited by such examples. In addition, any aspect or design described herein as “exemplary” and / or “demonstrative” is not necessarily to be construed as preferred or advantageous over other aspects or designs, nor is it meant to preclude equivalent exemplary structures and techniques known to those of ordinary skill in the art. Furthermore, to the extent that the terms “includes,” “has,” “contains,” and other similar words are used in either the detailed description or the claims, such terms are intended to be inclusive in a manner similar to the term “comprising” as an open transition word without precluding any additional or other elements.
[0056] Reference throughout this specification to “one embodiment” or “an embodiment” or “an instance” or “one instance” means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present disclosure. Thus, the appearances of the phrases “in one embodiment” or “in an embodiment” in various places throughout this specification are not necessarily all referring to the same embodiment.Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
[0057] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” and / or “comprising,” when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. As used herein, the term “and / or” includes any and all combinations of one or more of the associated listed items.
[0058] The conventional broadcast transmitters require substantial infrastructure, including large physical spaces and significant power, typically transmitting radio frequency (RF) power in kilowatts (kW). Deploying conventional broadcast transmitters in densely populated areas is challenging due to space constraints and the need for extensive infrastructure development. Furthermore, the range of the conventional broadcast transmitters is often affected by interference from other sources and signal degradation as users move farther from the transmitter.
[0059] The present disclosure addresses these challenges by utilizing existing mobile infrastructure to deploy low power Direct to Mobile (D2M) transmitters. The present disclosure utilizes established mobile network infrastructure, such as existing cell towers, to mitigate the need for new, extensive physical installations. It reduces the high-power demands typically associated with conventional broadcast transmitters. The D2M transmitters can be mounted on existing cell towers and operate on a single frequency reuse model. The single frequency reuse model addresses the problem of signal interference and degradation. The single frequency reuse model helps optimize the use of availablespectrum and ensures consistent signal quality by integrating with the existing network rather than requiring separate frequencies for each D2M transmitter. The D2M transmitters broadcast video streams to address the maximum number of users without loading the existing mobile network.
[0060] The present disclosure enhances network coverage by integrating with the established mobile network while also significantly reducing infrastructure costs. The present disclosure provides a cost-effective solution that expands coverage efficiently by utilizing existing infrastructure and reducing the need for additional physical and power resources. The present disclosure is advantageous in densely populated urban areas with limited space, and the conventional broadcast techniques face significant logistical and financial constraints.
[0061] The present disclosure allows high-definition video content, such as live sports broadcasts or critical information updates, to be efficiently delivered directly to users through the D2M transmitters, overcoming the limitations traditionally associated with high-demand broadcasts. The D2M transmitters can be easily installed on existing cell towers and are designed to operate with minimal power consumption. The design ensures that the transmission of content does not impose additional strain on the cellular network, preventing overload and maintaining network performance. The D2M transmitters utilize the existing mobile infrastructure to support the simultaneous delivery of high-quality content to a large number of users without affecting the cellular network’s bandwidth or causing congestion. The present disclosure enhances the efficiency and reach of broadcast services and significantly reduces the costs and complexity of deploying new broadcasting infrastructure.
[0062] The present disclosure encompasses a system board design, Gigabit Ethernet Physical Layer (GE PHY) development in the transmitter, and passively cooled mechanical design. The system board design outlines the arrangement and integration of key electronic components, including processors and communication interfaces, ensuring robust and reliable operation of the transmitter. This design ispivotal for handling high-definition content and managing signal processing and transmission complexities. The PHY development in the D2M transmitters focuses on refining the physical layer, which is responsible for encoding, modulating, and transmitting the broadcast signals. This development enhances signal quality and optimizes spectrum utilization, facilitating high-performance data transmission. The passive-cooled mechanical design integrates cooling solutions such as heat sinks and natural ventilation, efficiently managing thermal output without the need for active cooling systems. This design approach reduces power consumption and maintenance requirements while ensuring the transmitter operates within safe temperature limits.
[0063] Moreover, the present disclosure includes a synchronization mechanism that ensures all D2M transmitters operate on a single frequency across various locations. The mechanism employs precise timing and coordination techniques to synchronize the transmission frequencies, thereby preventing interference and enhancing signal coverage. By utilizing a single frequency, the present disclosure maintains consistent broadcast quality, improves coverage efficiency, and minimizes signal degradation, particularly in densely populated areas where the conventional broadcast techniques struggle with frequency management.
[0064] Consequently, the proposed solution offers an efficient and cost- effective broadcasting method, particularly in densely populated areas where traditional broadcast systems face limitations. This directly addresses the issues of space constraints and high costs associated with conventional broadcasting systems, providing a viable alternative that enhances network efficiency and coverage while overcoming the challenges of deploying large-scale broadcast infrastructure in urban environments.
[0065] The present disclosure describes a system with a design of a passive- cooled low-power Radio Frequency (RF) transmitter and is based on Field Programmable Gate Array (FPGA) technology. The system includes an onboardGlobal Positioning System (GPS) and synchronizer, which are integral for aligning the transmitter with neighbouring units. The GPS facilitates precise timing and synchronization, ensuring that all transmitters operate on a single frequency across vast geographic regions, including entire continents. This enables the implementation of a single frequency reuse model, optimizing spectrum efficiency and reducing signal interference. Further, the use of FPGA technology provides the D2M transmitter with programmable and adaptable signal processing capabilities, allowing for efficient modulation and encoding of the broadcast signals. The D2M transmitter provides video broadcast service to the users in case the number of existing users for content increases beyond network capacity.
[0066] The various embodiments throughout the disclosure will be explained in more detail with reference to FIG. 1- FIG. 5.
[0067] FIG. 1 illustrates an exemplary network architecture (100) for transmitting Direct-to-Mobile (D2M) content in a network (106), in accordance with embodiments of the present disclosure.
[0068] Referring to FIG. 1, the exemplary network architecture (100) may include one or more user equipments (UEs) (104-1, 104-2. . . 104-N) associated with one or more users (102-1, 102-2. . . 102-N) in an environment. A person of ordinary skill in the art will understand that one or more users (102-1, 102-2. . . 102-N) may be individually referred to as the user (102) and collectively referred to as the users (102). Similarly, a person of ordinary skill in the art will understand that one or more user equipments (104-1, 104-2... 104-N) may be individually referred to as the user equipment (104) and collectively referred to as the user equipment (104). A person of ordinary skill in the art will appreciate that the terms “computing device(s)” and “user equipment” may be used interchangeably throughout the disclosure. Further, any number of the UEs (104) may be included without departing from the scope of the ongoing description. In an embodiment, each of the user equipment (104) may have a first unique identifier attribute associated therewith. In an embodiment, the first unique identifier attribute may be indicativeof Mobile Station International Subscriber Directory Number (MSISDN), International Mobile Equipment Identity (IMEI) number, International Mobile Subscriber Identity (IMSI), Subscriber Permanent Identifier (SUPI) and the like.
[0069] In an embodiment, the UE (104) may include smart devices operating in a smart environment, for example, an Internet of Things (loT) system. In such an embodiment, the UE (104) may include but is not limited to, smartphones, smart watches, smart sensors (e.g., mechanical, thermal, electrical, magnetic, etc.), networked appliances, networked peripheral devices, networked lighting system, communication devices, networked vehicle accessories, networked vehicular devices, smart accessories, tablets, smart television (TV), computers, smart security system, smart home system, other devices for monitoring or interacting with or for the users (102) and / or entities, or any combination thereof. A person of ordinary skill in the art will appreciate that the user equipment (104) may include, but is not limited to, intelligent, multi-sensing, network-connected devices that can integrate seamlessly with each other and / or with a central server or a cloud-computing system or any other device that is network-connected.
[0070] In an embodiment, the UE (104) may include, but is not limited to, a handheld wireless communication device (e.g., a mobile phone, a smartphone, a phablet device, and so on), a wearable computer device (e.g., a head-mounted display computer device, a head-mounted camera device, a wristwatch computer device, and so on), a Global Positioning System (GPS) device, a laptop computer, a tablet computer, or another type of portable computer, a media playing device, a portable gaming system, and / or any other type of computer device with wireless communication capabilities, and the like. In an embodiment, the user equipment (104) may include but is not limited to, any electrical, electronic, electromechanical, or an equipment, or a combination of one or more of the above devices such as virtual reality (VR) devices, augmented reality (AR) devices, laptop, a general-purpose computer, desktop, personal digital assistant, tablet computer, mainframe computer, or any other computing device, the user equipment (104) may include one or more in-built or externally coupled accessories including, but notlimited to, a visual aid device such as a camera, an audio aid, a microphone, a keyboard, and input devices for receiving input from the user (102) or the entity such as touchpad, touch-enabled screen, electronic pen, and the like. A person of ordinary skill in the art will appreciate that the user equipment (104) may not be restricted to the mentioned devices and various other devices may be used.
[0071] Referring to FIG. 1, the UE (104) may communicate with a system (108) via the network (106). The UE (104) may be communicatively coupled with the network (106). The communicative coupling comprises receiving, from the UE (104), a connection request by the network (106), sending an acknowledgment of the connection request to the UE (104), and transmitting a plurality of signals in response to the connection request. As such, the network (106) may enable the UE (104) to communicate with other UEs (104) via a wired or wireless network. In an embodiment, the network (106) may include at least one of a Fourth Generation (4G) network, a Fifth Generation (5G) network, a Sixth Generation (6G) network, or the like. The network (106) may enable the UE (104) to communicate with other devices in the network architecture (100) and / or with the system (108). The network (106) may include a wireless card or some other transceiver connection to facilitate this communication. In another embodiment, the network (106) may be implemented as or include any of a variety of different communication technologies such as a wide area network (WAN), a local area network (LAN), a wireless network, a mobile network, a Virtual Private Network (VPN), the Internet, the Public Switched Telephone Network (PSTN), or the like.
[0072] Although FIG. 1 shows exemplary components of the network architecture (100), in other embodiments, the network architecture (100) may include fewer components, different components, differently arranged components, or additional functional components than depicted in FIG. 1. Additionally, or alternatively, one or more components of the network architecture (100) may perform functions described as being performed by one or more other components of the network architecture (100).
[0073] FIG. 2 illustrates an exemplary system architecture (200) for the Direct-To-Mobile (D2M) transmitter deployment in the network (106), in accordance with an embodiment of the present disclosure. In an embodiment, the network (106) may include at least one of a Fourth Generation (4G) network, a Fifth Generation (5G) network, a Sixth Generation (6G) network, or the like. FIG. 2 is explained in conjunction with FIG. 1.
[0074] The system (108) comprises one or more Radio Frequency (RF) transmitters (214-1, 214-2... ,214-N) (e.g., D2M transmitters) built around a Field Programmable Gate Array (FPGA) as main processing unit which performs Low- Density Parity-Check (LDPC) encoding, Quadrature Amplitude Modulation (QAM) modulation, and Orthogonal Frequency-Division Multiplexing (OFDM), along with integrated radio frequency (RF) circuitry, gain stages, and a plurality of power amplifiers (224-1, 224-2... ,224-N). The FPGA provides programmable logic for flexible and efficient signal processing, allowing the transmitter to meet various broadcasting requirements. The RF circuitry manages the generation, modulation, and transmission of RF signals, ensuring precision and signal integrity (e.g., one or more operations). The system (108) comprises one or more digital-to- analog converters (DACs) (216-1, 216-2, ..., 216-N). In an embodiment, each DAC is configured to convert digital signals into analog signals for transmission. In examples, RF signals are generated via the DAC and amplified RF power to 100W. The RF circuitry is coupled with a plurality of gain stages that amplify the signal to the required levels while maintaining quality. The plurality of gain stages includes gain stage 1 and gain stage 2. The gain stage 1 includes a plurality of amplifiers such as amplifiers 1 (218-1, 218-2. . . 218-N) and gain stage 2 includes a plurality of amplifiers such as amplifiers 2 (222-1, 222-2...222-N). The plurality of amplifiers 1 (218-1, 218-2...218-N) are coupled with a plurality of attenuators (220-1, 220-2.... 220-N) that are further coupled to the plurality of amplifiers 2 (222-1, 222-2...222-N). The plurality of amplifiers 2 (222-1, 222-2...222-N) are coupled to a plurality of power amplifiers (224-1, 224-2. . . ,224-N).
[0075] The plurality of Power Amplifiers (PAs) (224-1, 224-2....224-N) are coupled to a plurality of antennas (e.g., antenna 1 (226-1), antenna 2 (226- 2).... antenna N (226-N)). The plurality of Pas (224-1, 224-2... .224-N) performs one or more operations and extends the signal to reach over long distances. The system (108) further comprises a transceiver (202) coupled to an ethemet (208) network via a serializer / deserializer (SerDes) interface. The SerDes converts parallel data from the transceiver (202) into a serial data stream for transmission over the ethemet (208), and vice versa, enabling high-speed data communication. A memory (206) is coupled with Double Data Rate (DDR) (210) memory to enable high-speed data transfer. The system (108) includes a connector (204) for interfacing with external devices or systems. The system (108) includes a NOR flash (228) memory, which provides non-volatile storage for critical data and firmware. The NOR flash (228) is connected to a Multiplexer (MUX) (230), which allows for the selection and routing of multiple data signals. The MUX (230) is in turn connected to a General-Purpose Input / Output (GPIO) bank (212), which provides general-purpose input / output capabilities for interfacing with various peripherals or sensors. This configuration enables flexible and efficient data management and control within the system (108), ensuring that data can be stored, accessed, and routed effectively for optimal performance.
[0076] A microcontroller Unit (MCU) (234) is coupled with the one or more transmitters (214-1, 214-2... .214-N) via a Serial Peripheral Interface (SPI). The MCU (234) communicates with the one or more transmitters (214-1, 214-2. . . .214- N) by sending and receiving data over the SPI bus. The SPI is a high-speed serial communication protocol that enables efficient and reliable data transfer between the MCU (234) and the one or more transmitters (214-1, 214-2. . . ,214-N). Through this connection, the MCU (234) can manage various parameters and settings of the one or more transmitters (214-1, 214-2. . . ,214-N), such as frequency, power levels, and modulation schemes, ensuring precise and effective signal transmission. The MCU (234) is coupled with the NOR flash (232) memory, allowing the MCU (234) to interface with non-volatile storage. The connection enables the MCU (234) to readfrom and write to the NOR flash (232), which stores critical firmware and configuration data.
[0077] The MCU (234) is coupled with an interface (240) through a Gigabit Ethernet Physical Layer (GE PHY) (242), which serves as an intermediary to route and manage data communication between the MCU (234) and the external system. This configuration ensures that the MCU (234) can efficiently control and interact with devices connected through the interface (240), utilizing the GE PHY (242) for reliable and high-speed data transfer over the network (106).
[0078] The MCU (234) is coupled with a temperature sensor (244), enabling the MCU (234) to monitor and manage temperature readings within the system (108). The connection allows the MCU (234) to receive real-time temperature data from the temperature sensor (244), which can be used to perform various functions, such as regulating system performance, triggering alarms, or adjusting operational parameters based on temperature changes. The MCU (234) is coupled with the MUX (230), which enables the MCU (234) to manage and select among multiple data sources or signals at the one or more transmitters (214-1, 214- 2....214-N).
[0079] A synchronizer (236) is integrated with the MCU (234) and the plurality transmitters (214-1, 214-2. ...214-N) to ensure precise timing and effective communication. The synchronizer (236) is coupled with a Global Positioning System (GPS) (238) that operates via the RF signals received from an antenna (239). The MCU (234) is connected to the GPS (238) via a Universal Asynchronous Receiver-Transmitter (UART) interface. The UART facilitates serial communication between the MCU (234) and the GPS (238), allowing for the exchange of data such as time and location information.
[0080] The system (108) further includes a plurality of Voltage Regulator Modules (VRMs) (248) coupled with DC-DC power supply (246). The plurality of VRMs (248) provides stable and regulated voltage levels to different parts of the system (108), ensuring that each component receives the appropriate power forreliable operation. The DC-DC power supply (246) complements the plurality of VRMs (248) by converting Direct Current (DC) voltage from one voltage level to another. The plurality of VRMs (248) provides stable and regulated power to the FPGA, the MCU (234), and laser components. The plurality of VRMs (248) ensures that each of the components receives the appropriate voltage required for their operation, which is crucial for maintaining system reliability and performance. The FPGA, which handles complex digital logic tasks, needs precise voltage levels to function correctly and avoid errors. Similarly, the MCU (234), responsible for controlling and managing system operations, requires stable power to perform its tasks accurately. The laser, used for high-precision applications or communications, relies on a consistent voltage to operate effectively.
[0081] In an embodiment, the video stream to be broadcasted is received through an existing mobile network via a fiber optic connection. This setup allows the high-definition video content to be transmitted from the source to the one or more transmitters (214-1, 214-2....214-N) efficiently and with minimal latency. The fiber optic connection provides high-bandwidth, low-latency data transfer, ensuring that the video stream arrives at the one or more transmitters (214-1, 214- 2....214-N) with quality and reliability. Once received, the video stream is processed and broadcast through the one or more transmitters (214-1, 214-2. .. .214- N), leveraging the existing mobile network infrastructure to facilitate seamless and effective delivery of content to end-users. The video stream is then processed by various modules within the FPGA such as a Low-Density Parity-Check (LDPC) encoder, a Quadrature Amplitude Modulation (QAM) modulator, and an Orthogonal Frequency-Division Multiplexing (OFDM) modulator. The LDPC encoder adds error correction codes to the data, enhancing its integrity by allowing the system (108) to detect and correct errors that may occur during transmission. Following encoding, the data is processed through a bit interleaver to reduce the impact of burst errors and ensure a uniform distribution of bits. Next, Non-Uniform Constellation (NUC) is applied to improve the signal’s resistance to noise. The encoded and interleaved data is then modulated using the QAM. The QAMmodulator encodes the data into RF signals by varying the amplitude of the carrier waves, increasing transmission efficiency and capacity. The OFDM modulator splits the RF signals into multiple carrier frequencies, improving handling high data rates and mitigating signal degradation caused by interference and multipath effects. Together, these modules ensure the video stream is effectively prepared for broadcast, delivering high-quality and reliable content to the end-users. The processed digital data is converted to RF analog signals using the one or more DACs (216-1, 216-2... .216-N). The conversion is crucial for translating the digital data processed by the FPGA into a format suitable for RF transmission. The resulting RF signal is then amplified through various gain stages, which incrementally boost the signal strength while maintaining its quality. Following this, the RF signal undergoes further amplification via the plurality of power amplifiers (224-1, 224- 2. . . ,224-N), which provides the necessary power to ensure that the signal can cover the intended broadcast area effectively. Finally, the amplified RF signal is transmitted to at least one receiver unit (e .g . , a television set-top box, radio receiver, or a mobile phone) through a sector antenna, which focuses and directs the signal to specific coverage areas, allowing for efficient and targeted distribution of the broadcast content.
[0082] In an embodiment, the system (108) works on single frequency reuse and at least three transmitter units are placed on single cell tower to transmit in three different channel of 8 MHz each with max throughput of 20MBps for each channel. In an embodiment, all nodes of the system (108) are synchronized via the GPS (238) to avoid any interference in case of single frequency reuse. In an embodiment, power of the system (108) is kept low to utilize existing cell towers infrastructure. In an embodiment, the input stream received over 1G ethemet link is encoded with Forward Error Correction (FEC) LDPC encoder, the bit interleaver and the NUC, followed by the QAM and the OFDM. The output analog signal is amplified and transmitted via at least one omnidirectional antenna.
[0083] A person of ordinary skill in the art will understand that the one or more transmitters (214-1, 214-2... ,214-N) may be individually referred to as thetransmiter (214) and collectively referred to as the transmiters (214). The one or more transmiters (214-1, 214-2. . . ,214-N) are mounted on existing cellular towers, thereby avoiding the need for dedicated broadcast masts. Similarly, a person of ordinary skill in the art will understand that the one or more DACs (216-1, 216-2....216-N) may be individually referred to as the DAC (216) and collectively referred to as the DACs (216). Similarly, a person of ordinary skill in the art will understand that the plurality of amplifiers 1 (218-1, 218-2. , .218-N) may be individually referred to as the amplifier 1 (218) and collectively referred to as the amplifiers 1 (218). Similarly, a person of ordinary skill in the art will understand that the plurality of atenuators (220-1, 220-2, 220-N) may be individually referred to as the atenuator (220) and collectively referred to as the atenuators (220). Similarly, a person of ordinary skill in the art will understand that the amplifiers 2 (222- 1 , 222-2. . .222 -N) may be individually referred to as the amplifier 2 (222) and collectively referred to as the amplifiers 2 (222). Similarly, a person of ordinary skill in the art will understand that the plurality of power amplifiers (224- 1, 224-2. . . ,224-N) may be individually referred to as the power amplifier (224) and collectively referred to as the power amplifiers (224). Similarly, a person of ordinary skill in the art will understand that the plurality of antennas (226-1, 226-2....226-N) may be individually referred to as the antenna (226) and collectively referred to as the antennas (226).
[0084] FIG. 3 illustrates an exemplary block diagram (300) of the system (108) for transmiting the Direct-to-Mobile (D2M) content in the network (106), in accordance with an embodiment of the present disclosure. FIG. 3 is explained in conjunction with FIG. 1 and FIG. 2.
[0085] Referring to FIG. 3, the system (108) may include the interface(s) (240) that may include a variety of interfaces, for example, interfaces for data input and output devices, referred to as I / O devices, storage devices, and the like. The interface(s) (240) may facilitate communication to / from the system (108). The interface(s) (240) may also provide a communication pathway for one or morecomponents of the system (108). Examples of such components include, but are not limited to, a processing module (302) and a database (306).
[0086] In an embodiment, the processing module (302) may be implemented as a combination of hardware and programming (for example, programmable instructions) to implement one or more functionalities of the processing module (302). In the examples described herein, such combinations of hardware and programming may be implemented in several different ways. For example, the programming for the processing module (302) may be processorexecutable instructions stored on a non-transitory machine-readable storage medium, and the hardware for the processing module (302) may include a processing resource (for example, one or more processors) to execute such instructions. In the present examples, the machine-readable storage medium may store instructions that, when executed by the processing resource, implement the processing module (302). In such examples, the system (108) may include the machine-readable storage medium storing the instructions and the processing resource to execute the instructions, or the machine-readable storage medium may be separate but accessible to the system (108) and the processing resource. In other examples, the processing module (302) may be implemented by electronic circuitry.
[0087] Among other capabilities, the processing module (302) may be configured to fetch and execute computer-readable instructions stored in the memory (206) of the system (108). The memory (206) may be configured to store one or more computer-readable instructions or routines in a non-transitory computer-readable storage medium, which may be fetched and executed to create or share data packets over a network service. The memory (206) may include any non-transitory storage device, including, for example, volatile memory such as Random Access Memory (RAM), or non-volatile memory such as Erasable Programmable Read-Only Memory (EPROM), flash memory, and the like.
[0088] In an embodiment, the database (306) may include data that may be either stored or generated as a result of functionalities implemented by theprocessing module (302). In an embodiment, the database (306) may be separate from the system (108). In an embodiment, the database (306) may be indicative of including, but not limited to, a relational database, a distributed database, a cloudbased database, or the like.
[0089] The system (108) further comprises the transceiver (202), the one or more transmitters (214-1, 214-2....214-N), a Radio Frequency (RF) circuitry (304R), and the plurality of antennas (226-1, 226-2... ,226-N), all of which cooperate to receive, process, modulate, amplify, and transmit digital content in the form of RF signals to end-user receivers such as mobile phones, televisions, or set- top boxes.
[0090] In an embodiment, the transceiver (202) is configured to receive one or more data streams from the plurality of sources. The plurality of sources may include content providers, broadcast centers, live event venues, media servers, or other data distribution hubs that originate the digital content (e.g., video, audio, or hybrid data) intended for D2M broadcast. The transceiver (202) may include an Ethernet transceiver, a SerDes interface, or other network I / O hardware capable of receiving high-throughput unicast or multicast data streams over IP. The transceiver (202) interfaces with the Ethernet (208) and SerDes to receive packets comprising video, audio, or hybrid data intended for broadcast.
[0091] In an embodiment, the transceiver (202) is further configured to perform preliminary encoding operations such as Forward Error Correction (FEC), bit interleaving, or Noise Uncertainty Compensation (NUC) encoding. The preliminary encoding operations may occur prior to or in coordination with the processing module (302), offloading compute requirements and ensuring efficient distribution of pre-processed data to each transmitter (214-1, 214-2. . . ,214-N).
[0092] In an embodiment, the one or more transmitters (214-1, 214- 2....214-N) are coupled to the transceiver (202). Each transmitter (214-1, 214- 2....214-N) comprises a high-speed digital interface that connects it to the transceiver (202). The one or more transmitters (214-1, 214-2....214-N) areconfigured to receive one of the data streams provided by the transceiver (202) over at least one data channel, such as a serialized bus or shared memory-mapped interface. The one or more transmitters (214-1, 214-2... ,214-N) parses the incoming data into baseband symbols or packetized units for further processing. Each of the one or more transmitters (214-1, 214-2... ,214-N) is configured to operate on a unique, non-overlapping frequency channel. For example, in a deployment with three transmitters, each transmitter may be configured to broadcast on separate 8 MHz-wide channels within a larger frequency band. This ensures isolation, avoids intermodulation interference, and enables frequency reuse.
[0093] In an embodiment, each transmitter (214-1, 214-2... ,214-N) transmits the one of the data streams to the processing module (302). The one or more data streams received from the transceiver (202) may include different types of content or information feeds. For instance, a first data stream may include a high- definition video feed of a live sports event, a second data stream may include an audio-only radio broadcast, and a third data stream may include emergency alert information or digital signage updates. In some embodiments, one of the transmitters (214-1) may be configured to transmit the video feed, another transmitter (214-2) may be configured to transmit the radio broadcast, and a further transmitter (214-3) may be configured to transmit the emergency alerts. In another embodiment, all of the transmitters (214-1, 214-2, 214-3) may transmit the same high-definition video feed to provide redundancy and maximize coverage during high-demand events. The processing module (302) is preferably implemented in the Field-Programmable Gate Array (FPGA) or a dedicated baseband SoC. The processing module (302) is configured to perform one or more predefined operations on the transmitted data streams to generate processed data stream. The one or more predefined operations may include channel encoding (such as the Low- Density Parity-Check (LDPC)), modulation (such as the Quadrature Amplitude Modulation (QAM)), frequency division multiplexing (such as the Orthogonal Frequency-Division Multiplexing (OFDM)), interleaving, and constellation mapping (such as Noise Uncertainty Compensation (NUC)). The output of theprocessing module (302) is a digitally modulated baseband signal, which is optimized for wireless transmission.
[0094] In an embodiment, the processing module (302) performs the LDPC encoding to introduce forward error correction into the data stream. The LDPC improves signal robustness under variable reception conditions. The QAM stage maps the encoded bits onto complex-valued symbols for spectral efficiency. The OFDM is applied to divide the signal across multiple orthogonal sub-carriers, reducing inter-symbol interference and increasing spectral resilience. The one or more operations are typically implemented in pipelined logic blocks inside the FPGA.
[0095] In an embodiment, the processed data stream is passed to the one or more Digital-to-Analog Converters (DACs) (216-1, 216-2, ..., 216-N). The one or more DACs (216-1, 216-2, ..., 216-N) converts the baseband digital samples into the analog Radio Frequency (RF) or the Intermediate Frequency (IF) signals. Each transmitter (214-1, 214-2... .214-N) includes the one or more DACs (216-1, 216-2, ..., 216-N), each capable of operating at high sampling rates and bit depths to preserve the modulated waveform.
[0096] In an embodiment, the analog signal output from the one or more DACs (216-1, 216-2, ..., 216-N) is provided as an input into the RF circuitry (304). The RF circuitry (304) receives the analog signal and amplifies the analog signal to a predefined value. In an example, the predefined value may correspond to a target output power level required for over-the-air transmission, such as +23 dBm, ensuring sufficient signal strength at the receiver while complying with regulatory power limits. The RF circuitry (304) includes various analog signal conditioning components, such as filters, mixers, amplifiers, and attenuators, to prepare and amplify the analog signal output for emission over the air. The amplified signal output is referred to as the amplified RF signal, which is transmitted further to the plurality of antennas (226-1, 226-2. . . ,226-N).
[0097] In an embodiment, the RF circuitry (304) includes multiple gain stages to ensure that the analog RF signal achieves the desired transmission power with linearity and spectral compliance. The gain stages may include a first-stage amplifier, which provides initial gain, followed by a programmable attenuator to adjust the signal power dynamically. A second-stage amplifier then boosts the signal before passing it to the at least one Power Amplifier (PA) (224-1, 224- 2. . . .224, N), which is capable of delivering up to 100W of RF power, though this value may vary based on regulatory limits, coverage goals, and antenna characteristics. These stages ensure thermal efficiency, gain control, and consistent signal quality before emission through the antenna. The output power of up to 100 watts per channel is sufficient to reach users across urban and semi-urban cell tower radio while minimizing co-channel interference. Further, the RF circuitry (304) comprises multiple gain stages to progressively boost the signal amplitude.
[0098] In an embodiment, the plurality of antennas (226- 1 , 226-2. . . ,226-N) is configured to receive the amplified RF signal and transmit the amplified RF signal over the network (106). The plurality of antennas (226-1, 226-2... ,226-N) may be sectorized or omnidirectional, depending on deployment. This configuration is particularly advantageous in single-cell deployments and public broadcasting use cases, where uniform signal coverage is desired around a central tower. The plurality of antennas (226-1, 226-2... ,226-N) is physically coupled to the output of the RF circuitry (304). Each antenna (226-1, 226-2... ,226-N) corresponds to a transmitter chain and is tuned to the designated operating frequency of that channel.
[0099] In an embodiment, the system includes the Global Positioning System (GPS) (238) configured to provide highly accurate timing signals. The timing signals represent the precise absolute time of transmission and can also include geographic coordinates. The GPS (238) is connected to the synchronizer unit (236), which receives the time pulse and distributes it to the one or more transmitters (214-1, 214-2... ,214-N) and the processing module (302). The synchronizer unit (236) is communicatively coupled to the GPS (238) andconfigured to use the GPS timing signal to synchronize the phase and frequency of the amplified RF signals transmitted by each antenna (226-1, 226-2. . . ,226-N). This is critical in a Single Frequency Network (SFN) configuration, where phase-aligned transmission ensures that transceiver (202) can coherently combine signals from multiple sources. The synchronizer unit (236) aligns baseband clock domains and local oscillators across the one or more transmitters (214-1, 214-2. . . ,214-N).
[0100] In an embodiment, the system (108) is designed as a low-power transmission system by leveraging the short-range coverage of existing cell towers. Since each transmitter (214-1, 214-2... ,214-N) is deployed on already-dense mobile infrastructure, each transmitter only needs to cover the local cell area and does not require the high transmission power of conventional broadcast towers. This low-power architecture reduces overall energy consumption, minimizes electromagnetic emissions, and enables the use of passive cooling techniques. As a result, the system (108) lowers operational costs and improves sustainability while maintaining broadcast quality.
[0101] Although FIG. 3 shows exemplary components of the system (108), in other embodiments, the system (108) may include fewer components, different components, differently arranged components, or additional functional components than depicted in FIG. 3. Additionally, or alternatively, one or more components of the system (108) may perform functions described as being performed by one or more other components of the system (108).
[0102] FIG. 4 illustrates an exemplary flowchart of a method (400) for allocation of the Internet Protocol (IP) address by the User Plane Function (UPF) (322) for the Home Gateway (HGW) (302) in the network (106), in accordance with embodiments of the present disclosure. FIG. 4 is explained in conjunction with FIG. 1, FIG. 2 and FIG. 3.
[0103] At step (402), the method (400) proceeds with receiving, by the one or more transmitters (214-1, 214-2... ,214-N), the one or more data streams from the transceiver (202) via the separate channel. Each transmitter (214-1, 214-2....214-N), establishes a data pathway with the transceiver (202). The separate channel ensures efficient and isolated delivery of the data stream to each transmitter (214-1, 214-2... ,214-N), preventing bottlenecks and allowing for parallel processing, which is crucial for handling large volumes of broadcast content. Each transmitter (214-1, 214-2... ,214-N) may include a digital input interface, such as the Ethernet (208) or the optical fiber, allowing the transmitter (214-1, 214-2....214-N) to independently receive the data stream on dedicated channels. This separation of channels ensures that content duplication or distribution does not suffer from congestion, jitter, or packet loss.
[0104] In an embodiment, to enhance the quality of the incoming data stream at the earliest possible stage, the method (400) further comprises encoding, by the transceiver (202), one of the data streams by employing at least one of the Forward Error Correction (FEC) encoding, the Low-density parity check (LDPC) encoding, the bit interleaver encoding, and the Noise Uncertainty Compensation (NUC) encoding. These encoding techniques help mitigate transmission impairments such as fading, noise, and interference. For example, bit interleaving redistributes bits across time or frequency to reduce burst error vulnerability, while the NUC encoding compensates for variations in channel noise characteristics.
[0105] At step (404), the method (400) involves transmitting, by each of the one or more transmitters (214-1, 214-2,...214-N), one of the data streams to the processing module (302). The processing module (302) is configured to perform one or more predefined operations on the transmitted data streams and generate a processed data stream suitable for modulation and RF transmission. In one scenario, the transceiver (202) may receive three data streams: a sports stream, a news stream, and an entertainment stream. Each transmitter (214-1, 214-2, 214-3) may then receive one of the data streams, such that the transmitter (214-1) broadcasts the sports stream, the transmitter (214-2) broadcasts the news stream, and the transmitter (214-3) broadcasts the entertainment stream. In another scenario, all of the transmitters (214-1, 214-2, 214-3) may receive the same sports stream to maximize coverage during a high-demand event.
[0106] In an embodiment, the predefined operations performed by the processing module (302) include the at least one of the Low-Density Parity-Check (LDPC) encoding, the Quadrature Amplitude Modulation (QAM) modulation, and the Orthogonal Frequency-Division Multiplexing (OFDM). The LDPC encoding increases resilience to channel errors by adding redundant bits based on a paritycheck matrix. Following this, the QAM modulates the encoded data by varying both the amplitude and phase of a carrier wave, efficiently packing more data into each signal. Subsequently, the OFDM divides the modulated data across multiple orthogonal subcarriers, reducing inter-symbol interference and enabling efficient frequency utilization in mobile broadcast scenarios.
[0107] At step (406), following the digital processing, the method (400) includes converting, by each of the one or more transmitters (214-1, 214-2, ...214- N), the generated processed data stream into the analog Radio Frequency (RF) signal using the one or more Digital -to-Analog Converter (DAC) (216-1, 216- 2,...216-N). The one or more DAC (216-1, 216-2, ...216-N) may be implemented as a high-speed integrated circuit capable of supporting multi-megahertz or gigahertz sample rates, depending on the desired transmission bandwidth. The DAC output is a continuous-time analog representation of the digitally modulated signal, suitable for amplification and over-the-air transmission.
[0108] At step (408), once the analog RF signal is generated, the method (400) progresses to receiving, by the Radio Frequency (RF) circuitry (308), the analog RF signal to generate the amplified RF signal by amplifying the received analog RF signal by the predefined value. The RF circuitry (304) includes the one or more gain stages and the at least one Power Amplifier (PA) (224- 1 , 224-2. . . .224, N). Each gain stage may include variable gain amplifiers (VGAs) to dynamically adjust signal strength based on environmental conditions or distance to target receivers. At least one PA (224-1, 224-2,... .224, N) is designed to increase the power of the RF signal to a level suitable for transmission over large areas. The RF circuitry (304) includes the one or more gain stages and the at least one PA (224-1, 224-2... .224, N), takes the relatively low-power analog signal from the DAC andboosts its strength. This amplification is crucial to ensure that the transmitted signal possesses sufficient power to cover the intended broadcast area effectively and be reliably picked up by the UEs (104).
[0109] In a preferred embodiment, the predefined value, is up to 100 Watts (W), though the predefined value is configurable and may vary based on regulatory limits, coverage goals, and antenna characteristics. The high amplification allows the RF signal to propagate over several kilometers, reaching mobile handsets and receivers without requiring active feedback or return links.
[0110] At step (410), the method (400) involves receiving, by the plurality of antennas (226-1, 226-2, ...226-N), the amplified RF signal and transmitting the amplified RF signal in the network (106). In an embodiment, the plurality of antennas (226-1, 226-2,...226-N) are mounted on towers, rooftops, or mobile broadcasting units and are configured to handle high-power RF output. The plurality of antennas (226-1, 226-2,...226-N) may be broadband or tuned to specific licensed / unlicensed frequency bands designated for D2M content distribution. The plurality of antennas (226-1, 226-2,...226-N) positioned for optimal coverage, act as the interface between the D2M system and the wireless environment. The plurality of antennas (226-1, 226-2, ...226-N) convert the electrical RF signal into electromagnetic waves, propagating the D2M content throughout the designated service area, thereby completing the broadcast process to various end-user devices such as mobile phones or D2M-enabled receivers.
[0111] In an embodiment, the method (400) further comprises transmitting, by each of the plurality of antennas (226-1, 226-2....226-N), the amplified RF signal omni-directionally. The omni-directional transmission ensures that the D2M content is broadcast uniformly in all horizontal directions from the deployment location (e.g., a cell tower). This maximizes the coverage area around each transmitter and allows for a broad reception by mobile devices, regardless of their orientation or position relative to the antenna, thus optimizing user access to the D2M content. This allows for circular coverage around the antenna site, making itsuitable for urban and semi-urban areas where mobile users are dispersed in all directions. The plurality of antennas (226-1, 226-2... ,226-N) may be implemented using vertical dipole arrays or other geometries optimized for uniform azimuthal radiation.
[0112] In an embodiment to ensure spectral efficiency and avoid interference, the method (400) further specifies that each of the one or more transmitters (214-1, 214-2... .214-N) is configured to operate on non-overlapping frequency channels. This means that if the one or more transmitters (214-1, 214- 2....214-N) are deployed in proximity (e.g., on the same cell tower), the one or more transmitters (214-1, 214-2....214-N) utilize distinct frequency bands (e.g., three 8 MHz channels per tower). Therefore, simultaneous transmissions from the one or more transmitters (214-1, 214-2. . . ,214-N) do not interfere with one another and can cover adjacent geographical areas or even serve as part of a frequency reuse pattern in larger deployments. Channel allocation may be determined dynamically based on a frequency planning algorithm or statically assigned during network provisioning. The allocation of non-overlapping channels prevents co-channel interference between co-located transmitters, ensuring clear and dedicated bandwidth for each broadcast stream.
[0113] In a further embodiment, for precise timing and coordination across the network (106), the method (400) further comprises generating, by the Global Positioning System (GPS) (238), the GPS signal representing the precise timing of transmission and reception of signals from each of the plurality of antennas (226-1, 226-2... ,226-N). The GPS (238), is connected via its own antenna (239), provides highly accurate time synchronization data. The GPS signal acts as a universal reference, critical for orchestrating synchronized broadcasts from one or more transmitters (214-1, 214-2... ,214-N), particularly when employing techniques like single frequency reuse.
[0114] In a further embodiment, the synchronizer unit (236) receives the GPS signal from the GPS (238). The synchronizer unit (236) acquires the precisetiming information from the GPS (238). The synchronizer unit (236) further synchronizes the phase and frequency of the amplified RF signal transmitted by each of the plurality of antennas (226-1, 226-2. . . ,226-N) based on the received GPS signal.
[0115] FIG. 5 illustrates a computer system (500) in which or with which the embodiments of the present disclosure may be implemented.
[0116] As shown in FIG. 5, the computer system (500) may include an external storage device (510), a bus (520), a main memory (530), a read-only memory (540), a mass storage device (550), communication port(s) (560), and a processor (570) . A person skilled in the art will appreciate that the computer system may include more than one processor and communication ports. The processor (570) may include various modules associated with embodiments of the present disclosure. The communication port(s) (560) may be any of an RS-232 port for use with a modem -based dialup connection, a 10 / 100 Ethernet port, a Gigabit or 10 Gigabit port using copper or fiber, a serial port, a parallel port, or other existing or future ports. The communication port(s) (560) may be chosen depending on a network (106), such a Local Area Network (LAN), Wide Area Network (WAN), or any network to which the computer system connects.
[0117] The main memory (530) may be random access memory (RAM), or any other dynamic storage device commonly known in the art. The read-only memory (540) may be any static storage device(s) e.g., but not limited to, a Programmable Read Only Memory (PROM) chips for storing static information e.g., start-up or Basic Input / Output System (BIOS) instructions for the processor (570). The mass storage device (550) may be any current or future mass storage solution which can be used to store information and / or instructions. The mass storage device (550) includes, but is not limited to, Parallel Advanced Technology Attachment (PATA) or Serial Advanced Technology Attachment (SATA) hard disk drives or solid-state drives (internal or external, e.g., having Universal Serial Bus(USB) and / or Firewire interfaces), one or more optical discs, Redundant Array of Independent Disks (RAID) storage, e.g., an array of disks.
[0118] The bus (520) communicatively couples the processor (570) with the other memory, storage, and communication blocks. The bus (520) may be, e.g., a Peripheral Component Interconnect / Peripheral Component Interconnect Extended bus, Small Computer System Interface (SCSI), Universal Serial Bus (USB), or the like, for connecting expansion cards, drives, and other subsystems as well as other buses, such a Front Side Bus (FSB), which connects the processor (570) to the computer system.
[0119] Optionally, operator and administrative interfaces, e.g., a display, keyboard, joystick, and a cursor control device, may also be coupled to the bus (520) to support direct operator interaction with the computer system. Other operator and administrative interfaces can be provided through network connections connected through the communication port(s) (560). The components described above are meant only to exemplify various possibilities. In no way should the aforementioned exemplary computer system limit the scope of the present disclosure.
[0120] In an exemplary embodiment, a transmitter for Direct-to-Mobile (D2M) transmission in a network is disclosed. The one or more transmitters are coupled with a transceiver, wherein each of the one or more transmitters is configured to receive one or more data streams from the transceiver via at least one data channel, transmit one of the data streams to a processing module, wherein the processing module is configured to process the transmitted data streams by performing one or more predefined operations and generating a processed data stream and convert the generated processed data stream into an analog Radio Frequency (RF) signal using one or more Digital-to-Analog Converters (DACs). The system includes a RF circuitry configured to receive the analog RF signal and generate an amplified RF signal by amplifying the received analog RF signal by apredefined value. The system includes a plurality of antennas configured to receive the amplified signal and transmit the amplified RF signal in the network.
[0121] In an exemplary embodiment, a computer program product includes a non-transitory computer-readable medium including instructions that, when executed by one or more processors, cause the one or more processors to execute a method for transmitting Direct-to-Mobile (D2M) content in a network. The method includes receiving, by one or more transmitters, one or more data streams from a transceiver by at least one data channel. The method includes transmitting, by each of the one or more transmitters, one of the data streams to a processing module, wherein the processing module is configured to process the transmitted data streams by performing one or more predefined operations and generating a processed data stream. The method includes converting, by each of the one or more transmitters, the generated processed data stream into an analog Radio Frequency (RF) signal using one or more Digital -to-Analog Converters (DACs). The method includes receiving, by a RF circuitry, the analog RF signal to generate an amplified RF signal by amplifying the received analog RF signal by a predefined value. The method includes receiving, by a plurality of antennas, the amplified RF signal and transmit the amplified RF signal in the network.
[0122] While considerable emphasis has been placed herein on the preferred embodiments, it will be appreciated that many embodiments can be made, and many changes can be made in the preferred embodiments without departing from the principles of the disclosure. These and other changes in the preferred embodiments of the disclosure will be apparent to those skilled in the art from the disclosure herein, whereby it is to be distinctly understood that the foregoing descriptive matter is to be implemented merely as illustrative of the disclosure and not as a limitation.
[0123] The present disclosure provides a technical advancement in the field of Radio Frequency (RF) signal transmission in a Single Frequency Network (SFN) environment by enabling multiple physically distributed one or more transmittersto transmit on the same frequency using a common baseband signal. Unlike conventional architectures that require tight inter-node coordination or complex centralized control, the present disclosure provides a system architecture wherein a single baseband processor generates a common analog or digital baseband signal, which is then distributed across multiple RF front ends. Each RF front end includes RF circuitry configured to upconvert the baseband signal to a common carrier frequency, with a synchronizer unit ensuring alignment of clock domains and local oscillators across the transmitters. The present disclosure enables phase-aligned transmission from spatially separated nodes, thereby enhancing constructive signal combining at the receiver, minimizing inter-symbol interference, and improving spectral efficiency and coverage reliability in SFN deployments.ADVANTAGES OF THE PRESENT DISCLOSURE
[0124] The present disclosure provides a system and a method for improving overall efficiency of a network.
[0125] The present disclosure provides a system and a method for deploying a low-power direct to mobile (D2M) transmitter in a network. The D2M transmitters are considered low power because they are mounted on existing cellular towers that already provide dense geographical coverage. Unlike conventional broadcast transmitters that require very high transmission power to reach long distances, the D2M transmitters only need to cover localized cell areas, thereby operating at significantly lower output power.
[0126] The present disclosure leverages existing mobile infrastructure to deploy the D2M transmitter. The low-power design minimizes energy consumption, lowers electromagnetic emissions, and enables the use of passive cooling systems, which further reduces operational costs and maintenance requirements.
[0127] The present disclosure provides the D2M transmitter that can be mounted on existing cell towers and that can operate on a single frequency reuse model.
[0128] The present disclosure provides the D2M transmitter that enhances network coverage by getting seamlessly integrated with established mobile network while significantly reducing infrastructure costs.
[0129] The present disclosure provides an efficient and cost-effective broadcasting technique, particularly in densely populated areas where conventional broadcast techniques face significant limitations.
Claims
CLAIMS1. A system (108) for providing Direct-to-Mobile (D2M) transmission in a network (106), comprising: one or more transmitters (214-1, 214-2. . . ,214-N) configured to: receive one or more data streams from a transceiver (202) by at least one data channel; transmit one of the data streams to a processing module (302), wherein the processing module (302) is configured to process the transmitted data streams by performing one or more predefined operations and generate a processed data stream; convert the generated processed data stream into an analog Radio Frequency (RF) signal using one or more Digital-to-Analog Converters (DAC) (216-1, 216-2, ..., 216-N); a Radio Frequency (RF) circuitry (308) configured to receive the analog RF signal and generate an amplified RF signal by amplifying the received analog RF signal by a predefined value; and a plurality of antennas (226- 1 , 226-2. . . ,226-N) configured to receive the amplified RF signal and transmit the amplified RF signal in the network (106).
2. The system (108) as claimed in claim 1, wherein the RF circuitry (304) includes one or more gain stages and at least one power amplifier (PA) (224- 1, 224-2....224, N).
3. The system ( 108) as claimed in claim 1 , wherein the one or more predefined operations comprising a Low-Density Parity-Check (LDPC) encoding, a Quadrature Amplitude Modulation (QAM) modulation, and an Orthogonal Frequency-Division Multiplexing (OFDM).
4. The system (108) as claimed in claim 1, wherein each of the plurality of antennas (226-1, 226-2. . . ,226-N) is configured to transmit the amplified RF signal omni-directionally.
5. The system (108) as claimed in claim 1, wherein each of the one or more transmitters (214-1, 214-2... ,214-N) is configured to operate on nonoverlapping frequency channels.
6. The system (108) as claimed in claim 1, further includes a Global Positioning System (GPS) (238) configured to generate a GPS signal representing a precise timing of transmission and reception of signals from each of the plurality of antennas (226-1, 226-2. . . ,226-N).
7. The system (108) as claimed in claim 6, further includes a synchronizer unit (236) communicatively coupled with the GPS (238) and is configured to receive the GPS signal and synchronize the phase and frequency of the amplified RF signal transmitted by each of the plurality of antennas (226-1, 226-2. . . ,226-N) based on the received GPS signal.
8. The system (108) as claimed in claim 1, the transceiver (202) is configured encode one of the data streams by employing at least one of a Forward Error Correction (FEC) encoding, a Low-density parity check (LDPC) encoding, a bit interleaver encoding, and a Noise Uncertainty Compensation (NUC) encoding.
9. A method (400) for transmitting Direct-to-Mobile (D2M) content in a network (106), comprising: receiving (402), by one or more transmitters (214-1, 214-2....214- N), one or more data streams from a transceiver (202) by at least one data channel; transmitting (404), by each of the one or more transmitters (214-1, 214-2... ,214-N), one of the data streams to a processing module (302), wherein the processing module (302) processes the transmitted data streams by performing one or more predefined operations and generating a processed data stream;converting (406), by each of the one or more transmitters (214-1, 214-2... .214-N), the generated processed data stream into an analog radio frequency (RF) signal using one or more Digital-to -Analog Converters (DAC) (216-1, 216-2, ..., 216-N); receiving (408), by a Radio Frequency (RF) circuitry (308), the analog RF signal to generate an amplified RF signal by amplifying the received analog RF signal by a predefined value; and receiving (410), by a plurality of antennas (226-1, 226-2... ,226-N), the amplified RF signal and transmitting the amplified RF signal in the network (106).
10. The method (400) as claimed in claim 9, wherein the RF circuitry (304) includes one or more gain stages and at least one Power Amplifier (PA) (224-1, 224-2....224, N).
11. The method (400) as claimed in claim 9, wherein the one or more predefined operations comprising a Low-Density Parity-Check (LDPC) encoding, a Quadrature Amplitude Modulation (QAM) modulation, and an Orthogonal Frequency-Division Multiplexing (OFDM).
12. The method (400) as claimed in claim 9, further comprising transmitting, by each of the plurality of antennas (226-1, 226-2. . . ,226-N), the amplified RF signal omni-directionally.
13. The method (400) as claimed in claim 9, wherein each of the one or more transmitters (214-1, 214-2... ,214-N) is configured to operate on nonoverlapping frequency channels.
14. The method (400) as claimed in claim 9, further comprising generating, by a Global Positioning System (GPS) (238), a GPS signal representing a precise timing of transmission and reception of signals from each of the plurality of antennas (226-1, 226-2. . . ,226-N).
15. The method (400) as claimed in claim 14, further comprising:receiving, by a synchronizer unit (236), the GPS signal from the GPS (238); and synchronizing, by the GPS (238), the phase and frequency of the amplified RF signal transmitted by each of the plurality of antennas (226-1, 226-2. . . ,226-N) based on the received GPS signal.
16. The method (400) as claimed in claim 9, further comprising encoding, by the transceiver (202), one of the data streams by employing at least one of a Forward Error Correction (FEC) encoding, a Low-density parity check (LDPC) encoding, a bit interleaver encoding, and a Noise Uncertainty Compensation (NUC) encoding.
17. A transmitter (214-1, 214-2....214-N) for Direct-to -Mobile (D2M) transmission in a network (106), comprising: a transceiver (202) configured to receive one or more data streams by at least one data channel; a processing module (302) configured to: process one of the data streams by performing one or more predefined operations and generate a processed data stream; convert the generated processed data stream into an analog radio frequency (RF) signal using one or more Digital-to-Analog Converters (DAC) (216-1, 216-2, ..., 216-N); a Radio Frequency (RF) circuitry (308) configured to receive the analog RF signal and generate an amplified RF signal by amplifying the received analog RF signal by a predefined value; and a plurality of antennas (226- 1 , 226-2. . . ,226-N) configured to receive the amplified signal and transmit the amplified RF signal in the network (106).
18. A computer program product comprising a non-transitory computer- readable medium comprising instructions that, when executed by one or more processors, cause the one or more processors to execute a method (400) for transmitting Direct-to-Mobile (D2M) content in a network (106), the method (400) comprising: receiving (402), by one or more transmitters (214-1, 214-2....214- N), one or more data streams from a transceiver (202) by at least one data channel; transmitting (404), by each of the one or more transmitters (214-1, 214-2... .214-N), one of the data streams to a processing module (302), wherein the processing module (302) processes the transmitted data streams by performing one or more predefined operations and generating a processed data stream; converting (406), by each of the one or more transmitters (214-1, 214-2... .214-N), the generated processed data stream into an analog radio frequency (RF) signal using one or more Digital-to -Analog Converters (DAC) (216-1, 216-2, ..., 216-N); receiving (408), by a Radio Frequency (RF) circuitry (308), the analog RF signal to generate an amplified RF signal by amplifying the received analog RF signal by a predefined value; and receiving (410), by a plurality of antennas (226-1, 226-2... ,226-N), the amplified RF signal and transmitting the amplified RF signal in the network (106).
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