Description:RESERVATION 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 INVENTION
[0002] The embodiments of the present disclosure generally relate to a field of wireless communication, and specifically to a system and a method for mitigating page failure and reducing paging load in a cellular network, for example, a bandwidth constraint cellular network.

BACKGROUND OF INVENTION
[0003] The following description of the 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 is used only to enhance the understanding of the reader with respect to the present disclosure, and not as admissions of the prior art.
[0004] In a bandwidth-constrained Low Power Wireless Area Network (LPWAN) designed for low-cost, ultra-low complexity, and battery-saving industrial solutions, there are scenarios where Internet of Things (IoT) endpoints has to rely on server-initiated transactions and network paging messages to transmit information or data to application servers. In such cases, it is crucial for the endpoints to remain in a page listening state, and to respond to server requests for sensor data. Therefore, an optimized end-to-end solution is essential to efficiently utilize network resources and capabilities and to maintain efficiency and reliability utilizing a network paging strategy.
[0005] Consider an industrial use case like smart metering deployed on Narrow Band-Internet of Things (NBIoT) which is a type of LPWAN with a narrow bandwidth of 200 kHz. The IoT endpoints in this scenario may have embedded applications running on a Transmission Control Protocol (TCP) with TCP listening capabilities. The application server may initiate a TCP session to collect data from the IoT endpoints according to a preconfigured schedule spread across 24 hours. The IoT endpoints may remain registered to a network but are mostly in RRC idle state. During these lengthy periods of RRC idle state, the IoT endpoints may perform idle mode reselection between multiple cells belonging to different EnodeBs.
[0006] In such scenarios, as illustrated in the flow diagram (100) of FIG. 1, a Mobility Management Entity (MME) needs to know a last location (cell, EnodeB, and Tracking Area Identity (TAI)) of a user equipment to page it when a downlink data notification is received from a Gateway (GW). The MME may receive location information when the UE establishes an RRC connection through a camped cell. The MME uses a predefined and optimized paging strategy to page the UE in a specific order. For example, when a transaction is initiated from the server, the GW may send the downlink data notification to the MME. The MME may use the saved UE location to page it, starting with the last served EnodeB (EnodeB A). If the UE is not available in EnodeB A, the paging attempt fails, and the MME may proceed with subsequent paging attempts based on its strategy. However, these paging attempts can cause delays in response from the UE, especially in non-delay tolerant applications, and increase paging load on the network, consuming already constrained network bandwidth.
[0007] There is, therefore, a need in the art to provide an improved system and a method to mitigate page failures and reducing paging load in a bandwidth constraint cellular network by overcoming the deficiencies of the prior art(s).

OBJECTS OF THE INVENTION
[0008] Some of the objects of the present disclosure, which at least one embodiment herein satisfies are listed herein below.
[0009] It is an object of the present disclosure to provide a system and a method for mitigating page failure and reducing paging load in a bandwidth constraint network.
[0010] It is an object of the present disclosure to provide a system and a method for mitigating page failure and reducing paging load with fixed wireless Internet of Things (IoT) end points relying on paging messages for data delivery to an application server.
[0011] Another object of the present disclosure is to provide a user equipment including an embedded application which calls specific Application Programming Interfaces (APIs) to collect and store cellular information from a modulator-demodulator (modem) to decide and initiate data transaction to establish context with a core network.
[0012] Yet another object of the present disclosure is to provide a user equipment including an embedded application in order to update a last served cell information and assist a core network to successfully page the user equipment.

SUMMARY
[0013] This section is provided to introduce certain objects and aspects of the present disclosure in a simplified form that are further described below in the detailed description. This summary is not intended to identify the key features or the scope of the claimed subject matter.
[0014] In an aspect, the present disclosure relates to a system for mitigating page failure and reducing paging load in a bandwidth constraint cellular network. The system includes one or more processors and a memory operatively coupled to the one or more processors. The memory includes processor-executable instructions, which on execution, cause the one or more processors to establish a connection with at least one user equipment to facilitate a context setup. Upon the context setup, the one or more processors receive at least one of a Tracking Area Identity (TAI), an Evolved Universal Terrestrial Radio Access (EUTRA)-cell identity, and cell and Radio Resource Control (RRC) status information from the at least one user equipment. The one or more processors update a list of cells visited by the at least one user equipment based on the at least one of the TAI, the EUTRA-cell identity, and the cell and RRC status information. The one or more processors page the at least one user equipment based on the list of cells visited by the at least one user equipment to mitigate page failure and reduce paging load in a bandwidth constraint cellular network.
[0015] In an embodiment, the one or more processors may page the at least one user equipment by being configured to receive a downlink data notification from a Serving Gateway (SGW) in response to receiving a read request, by the SGW, from an application server, and page the at least one user equipment based on the list of cells visited by the at least one user equipment with respect to the downlink data notification via a RRC connection.
[0016] In an embodiment, the one or more processors may transmit a read response to the application server upon paging the at least one user equipment.
[0017] In an embodiment, the one or more processors may clear the list of cells during a power off of the at least one user equipment.
[0018] In an aspect, the present disclosure relates to a method for mitigating page failure and reducing paging load in a bandwidth constraint cellular network. The method includes establishing, by one or more processors associated with a system, a connection with at least one user equipment to facilitate a context setup. Upon the context setup, the method includes receiving, by the one or more processors, at least one of a TAI, an EUTRA-cell identity, and cell and RRC status information from the at least one user equipment. The method includes updating, by the one or more processors, a list of cells visited by the at least one user equipment based on the at least one of the TAI, the EUTRA-cell identity, and the cell and RRC status information. Further, the method includes paging, by the one or more processors, the at least one user equipment based on the list of cells visited by the at least one user equipment to mitigate page failure and reduce paging load in a bandwidth constraint cellular network.
[0019] In an embodiment, paging, by the one or more processors, the at least one user equipment may include receiving, by the one or more processors, a downlink data notification from a SGW in response to receiving a read request, by the SGW, from an application server, and paging, by the one or more processors, the at least one user equipment based on the list of cells visited by the at least one user equipment with respect to the downlink data notification via a RRC connection.
[0020] In an embodiment, the method may include transmitting, by the one or more processors, a read response to the application server upon paging the at least one user equipment.
[0021] In an embodiment, the method may include clearing, by the one or more processors, the list of cells during a power off of the at least one user equipment.
[0022] In an aspect, the present disclosure relates to a user equipment including one or more processors and a memory operatively coupled to the one or more processors. The memory includes processor-executable instructions, which on execution, cause the one or more processors to establish a connection with a system to facilitate a context setup. Upon the context setup, the one or more processors receive cell and RRC status information from a modulator-demodulator associated with the user equipment through one or more Application Programming Interfaces (APIs). The one or more processors periodically query the modulator-demodulator, via the one or more APIs, to obtain at least one of a TAI and EUTRA-cell identity on which the user equipment is camped, and transmit the TAI, the EUTRA-cell identity, and the cell and RRC status information to the system. The one or more processors are communicatively coupled with the system. The system is configured to receive the TAI, the EUTRA-cell identity, and the cell and RRC status information from the user equipment, update a list of cells visited by the user equipment based on at least one of the TAI, the EUTRA-cell identity, and the cell and RRC status information, and page the user equipment based on the list of cells visited by the user equipment to mitigate page failure and reduce paging load in a bandwidth constraint cellular network.
[0023] In an embodiment, the one or more processors may be configured to store the TAI, the EUTRA-cell identity, and the cell and RRC status information until the user equipment remains attached to the bandwidth constraint cellular network.
[0024] In an embodiment, the memory includes processor-executable instructions, which on execution, may cause the one or more processors to detect a transition of the user equipment from a first network entity to a second network entity in an idle state.
[0025] In an embodiment, the one or more processors may be configured to receive a new EUTRA-cell identity and cell and RRC status information from the modulator-demodulator in response to detecting that the user equipment performs idle mode reselection and transitions back to the first network entity from the second network entity.
[0026] In an embodiment, the memory includes processor-executable instructions, which on execution, may cause the one or more processors to initiate a small packet transmission over a User Datagram Protocol (UDP) or an Internet Control Message Protocol (ICMP) ping packet to a pre-configured server in response to detecting that the user equipment is transitioned to a new EnodeB that is not available in the list of EnodeBs visited by the user equipment via a RRC connection.
[0027] In an embodiment, the memory includes processor-executable instructions, which on execution, may cause the one or more processors to convert the EUTRA-cell identity into a EnodeB identity upon receiving the EUTRA-cell identity from the modulator-demodulator.

BRIEF DESCRIPTION OF DRAWINGS
[0028] The accompanying drawings, which are incorporated herein, and constitute a part of this disclosure, illustrate exemplary embodiments of the disclosed methods and systems 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.
[0029] FIG. 1 illustrates an existing flow diagram (100) for implementing a method for mitigating page failure and reducing paging load in a bandwidth constraint cellular network.
[0030] FIG. 2 illustrates an exemplary network architecture (200) for implementing a proposed system, in accordance with an embodiment of the present disclosure.
[0031] FIG. 3 illustrates an example block diagram (300) of a system for mitigating page failure and reducing paging load in a bandwidth constraint cellular network, in accordance with an embodiment of the present disclosure.
[0032] FIG. 4 illustrates an exemplary sequential diagram (400) for implementing a method for mitigating page failure and reducing paging load in a bandwidth constraint cellular network, in accordance with embodiments of the present disclosure.
[0034] FIG. 5 illustrates an exemplary computer system (500) in which or with which embodiments of the present disclosure may be utilized in accordance with embodiments of the present disclosure.
[0035] The foregoing shall be more apparent from the following more detailed description of the disclosure.

DETAILED DESCRIPTION
[0036] 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.
[0037] 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.
[0038] 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-known circuits, processes, algorithms, structures, and techniques may be shown without unnecessary detail to avoid obscuring the embodiments.
[0039] Also, it is noted that individual embodiments may be described as a process that 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.
[0040] 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.
[0041] 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.
[0042] 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 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.
[0043] The present disclosure provides a system and a method for mitigating page failure and reducing paging load in a cellular network, for example, a bandwidth constraint cellular network with fixed wireless Internet of Things (IoT) end points relying on paging messages for data delivery to an application server. The system and the method may establish a connection with a user equipment to facilitate a context setup. Upon the context setup, the system and the method may receive a Tracking Area Identity (TAI), an Evolved Universal Terrestrial Radio Access (EUTRA)-cell identity, and cell and Radio Resource Control (RRC) status information from the user equipment. Further, the system and the method may update a list of cells visited by the user equipment based on the TAI, the EUTRA-cell identity, and the cell and RRC status information, and page the user equipment based on the list of cells visited by the user equipment to mitigate page failure and reduce paging load in the bandwidth constraint cellular network.
[0044] Further, the user equipment may include an embedded application which calls specific Application Programming Interfaces (APIs) to obtain and store cellular information from a modulator-demodulator (modem) associated with the user equipment. The cellular information may be utilized to decide and initiate data transaction to establish context with a core network in order to update last served cell information and assist the core network to successfully page the user equipment.
[0045] Various embodiments of the present disclosure will be explained in detail with reference to FIGs. 2-5.
[0046] FIG. 2 illustrates an exemplary network architecture (200) for implementing a proposed system (208), in accordance with an embodiment of the present disclosure.
[0047] As illustrated in FIG. 2, by way of example and not by not limitation, the exemplary network architecture (200) may include a plurality of computing devices (204-1, 204-2…204-N), which may be individually referred as the computing device (204) and collectively referred as the computing devices (204). The computing devices (204) may be associated with a plurality of users (202-1, 202-2…202-N). The plurality of users (202-1, 202-2…202-N) may be individually referred as the user (202) and collectively referred as the users (202). It may be appreciated that the computing device (204) may be interchangeably referred to as an Internet of Things (IoT) device or a User Equipment (UE).
[0048] In an embodiment, the UE (204) may include smart devices operating in a smart environment, for example, an Internet of Things (IoT) system. The UE (204) may be, for example, but are not limited to, a set-up box, a smart television (TV), a streaming media player, a media centre personal computer (PC), and so on. In an embodiment, the UE (204) may include, but is not limited to, smart phones, 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 and/or entities, or any combination thereof.
[0049] A person of ordinary skill in the art will appreciate that the UE (204) 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.
[0050] In an embodiment, the UE (204) 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 any 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, that the UE (204) 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, a laptop, a general-purpose computer, a desktop, a personal digital assistant, a tablet computer, a mainframe computer, or any other computing device, wherein the UE (204) may include one or more in-built or externally coupled accessories including, but not limited 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 (202) or the entity such as a touch pad, a touch enabled screen, an electronic pen, and the like.
[0051] A person of ordinary skill in the art will appreciate that the UE (204) may not be restricted to the mentioned devices and various other devices may be used.
[0052] In an exemplary embodiment, the UE (204) may communicate with a system (208) through a network (206). The network (206) may be a core network. It may be appreciated that the system (208) may be interchangeably referred to as a Mobility Management Entity (MME) throughout the disclosure. The network (206) may include, by way of example but not limitation, at least a portion of one or more networks having one or more nodes that transmit, receive, forward, generate, buffer, store, route, switch, process, or a combination thereof, etc. one or more messages, packets, signals, waves, voltage or current levels, some combination thereof, or so forth. The network (206) may include, by way of example but not limitation, one or more of: a wireless network, a wired network, an internet, an intranet, a public network, a private network, a packet-switched network, a circuit-switched network, an ad hoc network, an infrastructure network, a public-switched telephone network (PSTN), a cable network, a cellular network, a satellite network, a fiber optic network, some combination thereof. It may be appreciated that the network (206) may be interchangeably referred to as a bandwidth constraint cellular network.
[0053] In an exemplary embodiment, the system (208) may be configured to establish a connection with the UE (204) to facilitate a context setup. Upon the context setup, the UE (204) may receive cell and Radio Resource Control (RRC) status information from a modulator-demodulator (modem) associated with the UE (204) through one or more Application Programming Interfaces (APIs). In an embodiment, the UE (204) may periodically query the modem, via the one or more APIs, to obtain a Tracking Area Identity (TAI) and Evolved Universal Terrestrial Radio Access (EUTRA)-cell identity on which the UE (204) is camped. In an embodiment, the one or more processors may convert the EUTRA-cell identity into a EnodeB identity upon receiving the EUTRA-cell identity from the modem. In an embodiment, the UE (204) may transmit the TAI, the EUTRA-cell identity, and the cell and RRC status information to the system (208).
[0054] In an embodiment, the UE (204) may include a memory including processor-executable instructions, which on execution, cause one or more processors to store the TAI, the EUTRA-cell identity, and the cell and RRC status information until the UE (204) remains attached to the network (206). In an embodiment, the one or more processors may detect a transition of the UE (204) from a first network entity, for example, a EnodeB A to a second network entity, for example, a EnodeB B in an idle state. In an embodiment, the one or more processors may detect that the UE (204) performs idle mode reselection and transitions back to the first network entity from the second network entity, and receives a new EUTRA-cell identity and cell and RRC status information from the modem. In an embodiment, the one or more processors may transmit all the information to the system (208).
[0055] In an embodiment, the one or more processors may detect that the UE (204) is transitioned to a new EnodeB that is not available in the list of EnodeBs visited by the UE (204) via a RRC connection, and initiate a small packet transmission over a User Datagram Protocol (UDP) or an Internet Control Message Protocol (ICMP) ping packet to a pre-configured server.
[0056] In an exemplary embodiment, the system (208) may receive the TAI, the EUTRA-cell identity, and the cell and RRC status information from the UE (204). In an embodiment, the system (208) may update a list of cells visited by the UE (204) based on the TAI, the EUTRA-cell identity, and the cell and RRC status information. Further, the system (208) may page the UE (204) based on the list of cells visited by the UE (204) to mitigate page failure and reduce paging load in the network (206).
[0057] In an exemplary embodiment, the system (208) may be associated with an application server (210) via a Serving Gateway (SGW) (not shown). The application server (210) may initiate a read request to the SGW once the UE (204) remains camped at the first network entity. Further, the system (208) may receive a downlink data notification from the SGW once the SGW receives the read request from the application server (210). Therefore, the system (208) may page the UE (204) based on the list of cells visited by the UE (204) with respect to the downlink data notification received via the RRC connection. The system (208) may transmit a read response to the application server (210) upon paging the UE (204), and send requested data to the application server (210).
[0058] Although FIG. 2 shows exemplary components of the network architecture (200), in other embodiments, the network architecture (200) 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 (200) may perform functions described as being performed by one or more other components of the network architecture (200).
[0059] FIG. 3 illustrates an exemplary block diagram (300) of a system (208) for mitigating page failure and reducing paging load in a bandwidth constraint cellular network (206), in accordance with an embodiment of the present disclosure.
[0060] In an embodiment, and as shown in FIG. 3, the system (208) may include one or more processors (302). The one or more processors (302) may be implemented as one or more microprocessors, microcomputers, microcontrollers, digital signal processors, central processing units, logic circuitries, and/or any devices that manipulate data based on operational instructions. Among other capabilities, the one or more processors (302) may be configured to fetch and execute computer-readable instructions stored in a memory (304) of the system (208). The memory (304) may store one or more computer-readable instructions or routines, which may be fetched and executed to create or share the data units over a network service. The memory (304) may include any non-transitory storage device including, for example, volatile memory such as Random-Access Memory (RAM), or non-volatile memory such as an Erasable Programmable Read-Only Memory (EPROM), a flash memory, and the like.
[0061] In an embodiment, the system (208) may also include an interface(s) (306). The interface(s) (306) may include a variety of interfaces, for example, 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) (306) may facilitate communication of the system (208) with various devices coupled to it. The interface(s) (306) may also provide a communication pathway for one or more components of the system (208). Examples of such components include, but are not limited to, processing engine(s) (308) and a database (310).
[0062] In an embodiment, the processing engine(s) (308) may be implemented as a combination of hardware and programming (for example, programmable instructions) to implement one or more functionalities of the processing engine(s) (308). In examples, described herein, such combinations of hardware and programming may be implemented in several different ways. For example, the programming for the processing engine(s) (308) may be processor-executable instructions stored on a non-transitory machine-readable storage medium and the hardware for the one or more processors (302) may comprise 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 engine(s) (308). In such examples, the system (208) may comprise 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 (208) and the processing resource. In other examples, the processing engine(s) (308) may be implemented by an electronic circuitry.
[0063] In an embodiment, the database (310) may comprise data that may be either stored or generated as a result of functionalities implemented by any of the components of the processors (302) or the processing engine(s) (308) or the system (208).
[0064] In an exemplary embodiment, the processing engine(s) (308) may include one or more engines selected from any of a data ingestion engine (312) and other units/engines (314). The other units/engines (314) may include, but are not limited to, a monitoring engine, a determination engine, and the like.
[0065] In an embodiment, the one or more processors (302) may, via the data ingestion engine (312), receive a TAI, an EUTRA-cell identity, and cell and RRC status information from a UE (204) upon facilitating a context setup. In an embodiment, the one or more processors (302) may, via the data ingestion engine (312), update a list of cells visited by the UE (204) based on the TAI, the EUTRA-cell identity, and the cell and RRC status information. Further, the one or more processors (302) may, via the data ingestion engine (312), page the UE (204) based on the list of cells visited by the UE (204) to mitigate page failure and reduce paging load in a network (206).
[0066] In an embodiment, the one or more processors (302) may, via the data ingestion engine (312), receive a downlink data notification from a Serving Gateway (SGW) in response to receiving a read request, by the SGW, from an application server. Therefore, the UE (204) may be paged based on the list of cells visited by the UE (204) with respect to the downlink data notification via the RRC connection. In an embodiment, the one or more processors (302) may transmit a read response to the application server upon paging the UE (204). In an embodiment, the one or more processors (302) are to clear the list of cells during a power off of the UE (204) or the UE (204) is detached from the network (206).
[0067] Although FIG. 3 shows exemplary components of the system (208), in other embodiments, the system (208) 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 (208) may perform functions described as being performed by one or more other components of the system (208).
[0068] FIG. 4 illustrates an exemplary sequential diagram (400) for implementing a method for mitigating page failure and reducing paging load in a bandwidth constraint cellular network, in accordance with embodiments of the present disclosure.
[0069] With reference to FIG. 4, upon boot-up, a UE (204) may attach to a network (206) through a cell A of a first network entity (402), for example an EnodeB A to initiate a UE context setup. During an initial UE context setup, a system (208), for example, an MME may acquire a TAI and a EUTRA-Cell ID from the UE (204). Subsequently, the system (208) may update its EnodeB list with only EnodeB A. It may be appreciated that the first network entity (402) may be interchangeably referred to as the EnodeB A and a second network entity (404) may be interchangeably referred to as an EnodeB B throughout the disclosure.
[0070] In an embodiment, the UE (204) may include an embedded application (204a) to retrieve cell and RRC status information from a modem (204b) associated with the UE (204) through APIs. Based on the retrieved cell and RRC status information, the embedded application (204a) may update its list of visited cells as Cell=A, RRC State=Connected.
[0071] In an embodiment, following a period of radio inactivity, the EnodeB A (402) may release a RRC connection towards the UE (204) and the UE context towards the MME (208). While the UE (204) remains camped at the EnodeB A (402), a read request may be initiated from an application server (408) for the UE (204). A SGW (406) may receive the read request from the application server (210), and transmit a downlink data notification towards the MME (208). The MME (208) may follow a paging strategy for paging the UE (204) based on the EnodeB list, i.e., EnodeB A.
[0072] While the UE (204) is in an idle state and cell reselection criteria are met, the UE (204) may reselect a cell B of EnodeB A (402). In this case, the embedded application (204a) in the UE (204) may update its list of visited cells as Cell=B, RRC State=Not connected. The application (204a) may continuously check camping of the UE (204) to a new EnodeB. If the UE (204) has transitioned to the new EnodeB, i.e., EnodeB B (404) in the idle state and the new EnodeB B (404) is not a part of the stored list, the application (204a) may initiate a small packet transmission over a User Datagram Protocol (UDP) or an Internet Control Message Protocol (ICMP) ping packet to a pre-configured server.
[0073] The initiation of small packet transmission over the UDP or the ICMP ping packet may enable the UE (204) to establish an RRC connection through the selected cell, thereby updating the visited EnodeB list in the MME (208) through UE context setup. The MME (208) may have the last visited EnodeB list updated with 2 EnodeBs, i.e., the EnodeB A (402) and the EnodeB B (404). Similarly, at the UE (204), the last visited EnodeB list may be updated as EnodeB A, RRC connected, and EnodeB B, RRC connected.
[0074] After a period of RRC inactivity, the EnodeB B (404) may release the RRC connection and the UE context towards the MME (208). The MME (208) may update the list of EnodeBs with the EnodeB A (402) and the EnodeB B (404). If the application server (210) initiates the read request, the SGW (406) may receive the notification, initiating the downlink data notification towards the MME (208). The MME (208) may follow the paging strategy and page the UE (204) through the EnodeB list, i.e., the EnodeB A (402) and the EnodeB B (404). The UE (204) may respond through the EnodeB B (404), establish the RRC connection, and send the requested data to the application server (210).
[0075] After another period of RRC inactivity, the EnodeB B (404) may again release the RRC connection and the UE context towards the MME (208). If the UE (204) undergoes idle mode reselection and moves back to the EnodeB A (402), the application (204a) may receive a new EUTRA cell-ID and its RRC connection status information from the modem (204b). The application (204a) may determine that the EnodeB A (402) to which the UE (204) has camped in the idle state is already a part of the stored list of cell IDs through which RRC connection was established, and thus performs nothing.
[0076] While the UE (204) is camped at the EnodeB A in the idle state, and if the application server (210) initiates the read request, the SGW (406) may receive the notification, initiating the downlink data notification towards the MME (208). The MME (208) may follow the paging strategy and page the UE (204) through the EnodeB list, i.e., EnodeB A and EnodeB B. The UE (204) may respond through the EnodeB A (402), establish the RRC connection, and send the requested data to the application server (210). After a period of RRC inactivity, the EnodeB A (402) may again release the RRC connection and the UE context towards the MME (208).
[0077] FIG. 5 illustrates an exemplary computer system (500) in which or with which embodiments of the present disclose may be utilized in accordance with embodiments of the present disclosure.
[0078] 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), a communication port(s) (560), and a processor (570). A person skilled in the art will appreciate that the computer system (500) may include more than one processor (570) and communication ports (560). 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 ports(s) (560) may be chosen depending on a network, such as a Local Area Network (LAN), Wide Area Network (WAN), or any network to which the computer system (500) connects.
[0079] In an embodiment, the main memory (530) may be a 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) chip 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. Exemplary mass storage solutions include, but are 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).
[0080] In an embodiment, the bus (520) may communicatively couple the processor(s) (570) with the other memory, storage, and communication blocks. The bus (520) may be, e.g., a Peripheral Component Interconnect PCI)/PCI Extended (PCI-X) bus, Small Computer System Interface (SCSI), 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 (500).
[0081] In another embodiment, operator and administrative interfaces, e.g., a display, keyboard, and cursor control device may also be coupled to the bus (520) to support direct operator interaction with the computer system (500). Other operator and administrative interfaces can be provided through network connections connected through the communication port(s) (560). Components described above are meant only to exemplify various possibilities. In no way should the aforementioned exemplary computer system (500) limit the scope of the present disclosure.
[0082] While considerable emphasis has been placed herein on the preferred embodiments, it will be appreciated that many embodiments can be made and that 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.
ADVANTAGES OF THE INVENTION
[0083] The present disclosure facilitates in mitigating page failure and reducing paging load in a bandwidth constraint cellular network in an efficient manner.
[0084] The present disclosure facilitates in mitigating page failure and reducing paging load with fixed wireless Internet of Things (IoT) end points relying on paging messages for data delivery to an application server.
[0085] The present disclosure provides a user equipment including an embedded application. The embedded application calls specific Application Programming Interfaces (APIs) to collect and store cellular information from a modulator-demodulator (modem) to decide and initiate data transaction to establish context with a core network.
[0086] The present disclosure provides a user equipment including an embedded application in order to update a last served cell information and assist a core network to successfully page the user equipment.

, Claims:1. A system (208) for mitigating page failure and reducing paging load in a bandwidth constraint cellular network, the system (208) comprising:
one or more processors (302); and
a memory (304) operatively coupled to the one or more processors (302), wherein the memory (304) comprises processor-executable instructions, which on execution, cause the one or more processors (302) to:
establish a connection with at least one user equipment (204) to facilitate a context setup;
upon the context setup, receive at least one of: a Tracking Area Identity (TAI), an Evolved Universal Terrestrial Radio Access (EUTRA)-cell identity, and cell and Radio Resource Control (RRC) status information from the at least one user equipment (204);
update a list of cells visited by the at least one user equipment (204) based on the at least one of: the TAI, the EUTRA-cell identity, and the cell and RRC status information; and
page the at least one user equipment (204) based on the list of cells visited by the at least one user equipment (204) to mitigate page failure and reduce paging load in a bandwidth constraint cellular network (206).

2. The system (208) as claimed in claim 1, wherein the one or more processors (302) are to page the at least one user equipment (204) by being configured to:
receive a downlink data notification from a Serving Gateway (SGW) (406) in response to receiving a read request, by the SGW (406), from an application server (210); and
page the at least one user equipment (204) based on the list of cells visited by the at least one user equipment (204) with respect to the downlink data notification via a RRC connection.
3. The system (208) as claimed in claim 2, wherein the one or more processors (302) are to transmit a read response to the application server (210) upon paging the at least one user equipment (204).

4. The system (208) as claimed in claim 1, wherein the one or more processors (302) are to clear the list of cells during one of: a power off of the at least one user equipment (204) or a detachment of the at least one user equipment (204) from the bandwidth constraint cellular network (206).

5. A method for mitigating page failure and reducing paging load in a bandwidth constraint cellular network, the method comprising:
establishing, by one or more processors (302) associated with a system (208), a connection with at least one user equipment (204) to facilitate a context setup;
upon the context setup, receiving, by the one or more processors (302), at least one of: a Tracking Area Identity (TAI), an Evolved Universal Terrestrial Radio Access (EUTRA)-cell identity, and cell and Radio Resource Control (RRC) status information from the at least one user equipment (204);
updating, by the one or more processors (302), a list of cells visited by the at least one user equipment (204) based on the at least one of: the TAI, the EUTRA-cell identity, and the cell and RRC status information; and
paging, by the one or more processors (302), the at least one user equipment (204) based on the list of cells visited by the at least one user equipment (204) to mitigate page failure and reduce paging load in a bandwidth constraint cellular network (206).

6. The method as claimed in claim 5, wherein paging, by the one or more processors (302), the at least one user equipment (204) comprises:
receiving, by the one or more processors (302), a downlink data notification from a Serving Gateway (SGW) (406) in response to receiving a read request, by the SGW (406), from an application server (210); and
paging, by the one or more processors (302), the at least one user equipment (204) based on the list of cells visited by the at least one user equipment (204) with respect to the downlink data notification via a RRC connection.

7. The method as claimed in claim 6, comprising transmitting, by the one or more processors (302), a read response to the application server (210) upon paging the at least one user equipment (204).

8. The method as claimed in claim 5, comprising clearing, by the one or more processors (302), the list of cells during one of: a power off of the at least one user equipment (204) or a detachment of the at least one user equipment (204) from the bandwidth constraint cellular network (206).

9. A user equipment (204), comprising:
one or more processors; and
a memory operatively coupled to the one or more processors, wherein the memory comprises processor-executable instructions, which on execution, cause the one or more processors to:
establish a connection with a system (208) to facilitate a context setup;
upon the context setup, receive cell and Radio Resource Control (RRC) status information from a modulator-demodulator (204b) associated with the user equipment (204) through one or more Application Programming Interfaces (APIs);
periodically query the modulator-demodulator (204b), via the one or more APIs, to obtain at least one of: a Tracking Area Identity (TAI) and Evolved Universal Terrestrial Radio Access (EUTRA)-cell identity on which the user equipment (204) is camped; and
transmit the TAI, the EUTRA-cell identity, and the cell and RRC status information to the system (208);
wherein the one or more processors are communicatively coupled with the system (208), and wherein the system (208) is configured to:
receive the TAI, the EUTRA-cell identity, and the cell and RRC status information from the user equipment (204);
update a list of cells visited by the user equipment (204) based on at least one of: the TAI, the EUTRA-cell identity, and the cell and RRC status information; and
page the user equipment (204) based on the list of cells visited by the user equipment (204) to mitigate page failure and reduce paging load in a bandwidth constraint cellular network (206).

10. The user equipment (204) as claimed in claim 9, wherein the one or more processors are configured to store the TAI, the EUTRA-cell identity, and the cell and RRC status information until the user equipment (204) remains attached to the bandwidth constraint cellular network (206).

11. The user equipment (204) as claimed in claim 9, wherein the memory comprises processor-executable instructions, which on execution, cause the one or more processors to detect a transition of the user equipment (204) from a first network entity (402) to a second network entity (404) in an idle state.

12. The user equipment (204) as claimed in claim 11, wherein the one or more processors are configured to receive a new EUTRA-cell identity and cell and RRC status information from the modulator-demodulator (204b) in response to detecting that the user equipment (204) performs idle mode reselection and transitions back to the first network entity (402) from the second network entity (404).
13. The user equipment (204) as claimed in claim 9, wherein the memory comprises processor-executable instructions, which on execution, cause the one or more processors to initiate a small packet transmission over a User Datagram Protocol (UDP) or an Internet Control Message Protocol (ICMP) ping packet to a pre-configured server in response to detecting that the user equipment (204) is transitioned to a new EnodeB that is not available in a list of EnodeBs visited by the user equipment (204) via a RRC connection.

14. The user equipment (204) as claimed in claim 9, wherein the memory comprises processor-executable instructions, which on execution, cause the one or more processors to convert the EUTRA-cell identity into a EnodeB identity upon receiving the EUTRA-cell identity from the modulator-demodulator (204b).