FORM 2
THE PATENTS ACT, 1970
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
USER EQUIPMENTS
APPLICANT
JIO PLATFORMS LIMITED
of Office-101, Saffron, Nr. Centre Point, Panchwati 5 Rasta, Ambawadi, Ahmedabad - 380006, Gujarat, India; Nationality: India
The following specification particularly describes
the invention and the manner in which
it is to be performed

RESERVATION OF RIGHTS
[001] 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 (herein after 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
[002] The present disclosure relates to wireless cellular communications,
and specifically to a system and method to provide an additional support of extended Access Point Name-Aggregate Maximum Bit Rate (APN-AMBR) Downlink/Uplink Attribute Value Pairs (AVPs) on a Gx interface.
DEFINITION
[003] 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.
[004] The term PCC used herein, refers to Policy and Charging Control
(PCC) rules that plays a crucial role in managing and controlling the policies related to data usage, quality of service (QoS), and charging for network services.
[005] The term PCF as used herein, refers to policy control function (PCF)
provides policy rules for control plane functions. This includes network slicing, roaming and mobility management.
[006] The term PCRF as used herein, refers to policy and charging rules
function (PCRF) is a policy decision point for subscriber data flows in the network.

Using inputs from other network nodes, the PCRF will formulate rules which control how traffic flows (required QoS, restrictions, throttling, blocking, billing, etc) over the network down to individual subscriber granularity.
[007] The term DPI as used herein, refers to deep packet inspection (DPI)
is a method of examining and managing network traffic. It is a form of packet filtering that locates, identifies, classifies and reroutes or blocks packets with specific data or code payloads that conventional packet filtering, which examines only packet headers, cannot detect.
[008] The term SMF as used herein, refers to session management function
(SMF) establishes, modifies, and terminates, the Packet Data Unit (PDU) sessions established between the UE and the user plane function (UPF) in the network.
[009] The term CHF as used herein, refers to charging function (CHF) is
deployed to the network side to complete the billing function. The CHF supports the online charging, offline charging and convergent charging models.
[0010] The term BSF as used herein, refers to a binding support function
(BSF) maintains and provides the user identity, the data network name (DNN), UE addresses, and the PCF address for the PDU session. The PCF registers a new session binding information in the BSF and obtains a unique BSF binding ID for the existing PDU session.
[0011] The term NRF as used herein, refers to a network repository function
(NRF) is the network node(s) repository (database). The NRF implements registration and discovery of various other 5G network services, either in local or a remote network. The NRF also provides a service for requesting OAuth2 access tokens.
[0012] The term AF as used herein, refers to application function (AF) is a
functional entity responsible for handling service-specific aspects and application-

related policies. It plays a crucial role in enabling the delivery of various services and applications over the network.
[0013] The term AMF as used herein, refers to access and mobility
management function (AMF) is a functional entity responsible for registration management, connection management, reachability management, mobility management and various function relating to security and access management and authorization.
[0014] The term OCS as used herein, refers to online charging system
(OCS) is a system allowing a communications service provider to charge their customers, in real time, based on service usage.
[0015] The term PGW as used herein, refers to packet data network gateway
(PGW) is a server/system within a mobile network that provides connectivity between the user's device such as a cell phone and other networks such as internet.
[0016] The term NMS as used herein, refers to network management station
(NMS) is a server that runs a network management application. Network elements communicate with the NMS to relay management and control information. The NMS also enables network data analysis and reporting.
[0017] The term SPR as used herein, refers to subscriber profile repository
(SPR) is a system for storing and managing subscriber-specific policy control data as defined under the 3GPP standard.
[0018] The term Sd as used herein, refers to Sd interface is to support
Application Detection and Control (ADC) rule handling, usage monitoring control of traffic detection function (TDF) sessions and of detected applications. The Sd interface supports reporting of the start and the stop of a detected application’s traffic and transfer of service data flow descriptions for detected applications.
[0019] The term N7 as used herein, refers to N7 interface triggers session
management policies towards a session management function (SMF).

[0020] The term N28 as used herein, refers to N28 interface supports the
key charging and quota handling scenarios.
[0021] The term N15 as used herein, refers to N15 interface is between the
Policy Control Function (PCF) and the Access and Mobility Management Functions (AMF) in the case of a non-roaming scenario, or the Visited PCF (vPCF) and Access and Mobility Management Functions (AMF) in case of a roaming scenario.
[0022] The term Rx as used herein, refers to Rx interface enables transport
of application-level session information from P-CSCF to PCRF.
[0023] The term Gx as used herein, refers to Gx interface connects the
PCRF with policy enforcement points. The serving GPRS support node (SGSN), gateway GPRS support node (GGSN), and PDN Gateway are all considered as enforcement points, supported by the Gx interface.
[0024] The term Sy as used herein, refers to Sy interface connects the PCRF
and OCS. It enables the transfer of subscriber spending information from the OCS to PCRF. This allows the PCRF to make policy decisions based on spending limits. The interface uses Diameter and supports initial and intermediate requests to get policy counter statuses and subscribe to status change notifications. It also supports final requests to unsubscribe from all notifications.
[0025] The term TAC as used herein, refers to Tracking Area code which
plays an important role in network management and allows for efficient tracking and identification of User Equipment (UE) while moving within the 5G network service.
[0026] The term APN as used herein, refers to Access Point Name is a
gateway between a mobile network (GSM, GPRS, 3G, 4G and 5G) and another computer network, frequently the public Internet.

[0027] The term AMBR as used herein, refers to Aggregate Maximum Bit
Rate is the maximum possible bit rate configured by the network operator for a particular user to provide efficient service connection.
[0028] The term APN-AMBR as used herein, refers to access point name
5 Aggregate Maximum Bit Rate. It is a parameter that is used to control the maximum
amount of data that can be transferred over a wireless network.
[0029] The term UL as used herein, refers to uplink which is the signal that
leaves the user equipment and going back to the service provider cell tower.
[0030] The term DL as used herein, refers to downlink is the signal
10 transmitted from the service provider cell tower to the user equipment.
[0031] The term AVP as used herein, refers to attribute value pair which is
given to an information element of a diameter message.
[0032] The term CCR-I as used herein, refers to credit control request initial
message which is used by the PCF to request rule from the PCRF as a part of PCC
15 framework.
[0033] The term CCA-I as used herein, refers to credit control answer
initial message carries the rule between the PCRF and PCF as a part of PCC framework.
BACKGROUND OF DISCLOSURE
20 [0034] 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,
25 and not as admissions of prior art.
6

[0035] Policy and Charging Rules Function (PCRF) should support
extended Bandwidth Attribute Value Pairs (BW AVPs) in an Internet Protocol (IP)
Connectivity Access Network (IP-CAN) session establishment/modification, to
provide dual connectivity in a 5G non-standalone (NSA) device.
5 [0036] In order to provide an authorized Quality of service (QoS) per
Access Point Name (APN), QoS-Information Attribute Value Pair (AVP) may not
include any other AVP than an APN-Aggregate-Max-Bitrate(AMBR) Uplink (UL)
AVP, an APN-Aggregate-Max-Bitrate(AMBR) Downlink (DL) AVP, an
Extended-APN-AMBR-UL AVP, an Extended-APN-AMBR-DL AVP and/or
10 Conditional-APN-Aggregate-Max-Bitrate AVP. The PCRF may provision
authorized QoS per APN, based on information obtained from a Subscriber Profile Repository (SPR) or internal policies.
[0037] When a user moves to service area locations where the bandwidth
available on the user and control plane is low, then the PCRF may take an
15 appropriate action to throttle the bandwidth of the user. When the user comes out
of the throttled area, the PCRF may push back the normal AMBR rules. The PCRF
may manage this by sending modified APN-AMBR values to a Packet Data
Network Control Plane (PGW-C). When a 5G NSA user device moves to the non-
throttled area from the throttled area, in that case only modification on the APN-
20 AMBR is not sufficient. The 5G NSA user may consume high control and user plan
bandwidth in a low bandwidth service area which will impact other subscriber
services.
[0038] There is therefore a need in the art to provide an improved
mechanism to overcome the above-mentioned limitations.
25 OBJECTS OF THE PRESENT DISCLOSURE
[0039] It is an object of the present disclosure to provide an additional
support of extended Access Point Name-Aggregate Maximum Bit Rate (APN-
AMBR) Downlink/Uplink Attribute Value Pairs (AVPs) on a Gx interface.
[0040] It is an object of the present disclosure to provide extended-APN-
30 AMBR value and APN-AMBR value to come in Credit Control Request Initial
7

(CCR-I) message. The PCRF may send only the extended-APN-AMBR value with
a new policy and charging control (PCC) rule in a Credit Control Answer Initial
(CCA-I) message.
[0041] It is an object of the present disclosure to enable the PCRF to send
5 modified policy rules based on user location, and when the user moves into a
specific tracking area location for which the throttling by network requirement is in
effect, the PCRF modifies the Extended-APN-AMBR DL/UL values without
affecting other network services.
[0042] It is an object of the present disclosure to enable the user to forgo re-
10 attaching to the network to throttle or throttle back to get the default QoS
information from Subscriber Profile Repository (SPR).
[0043] It is an object of the present disclosure to efficiently manage network
resources by allocating and controlling a maximum data transfer rate.
[0044] It is an object of the present disclosure to prevent network
15 congestion/outages and smoother overall network experience.
[0045] It is an object of the present disclosure to avoid the user re-attach to
the network when the user comes out of a throttled location to experience basic data
transfer rate.
[0046] It is an object of the present disclosure to not affect other network
20 services like audio or video calls.
SUMMARY
[0047] The present disclosure discloses a system for configuring dual
connectivity to a user equipment (UE). The system includes a memory, an input unit, and a processor. The memory is configured to store a pre-defined set of
25 processing rules. The input unit is configured to receive a number of measurements
associated with a user equipment (UE) session from a packet data network (PDN) gateway (PGW). The processor is configured to cooperate with the input unit to receive the digital number of measurements, and further configured to cooperate with the memory to process the received information using the pre-defined set of
30 processing rules to: extract a set of parameters from the number of measurements;
8

determine a current location of the user equipment using a tracking area code
(TAC); generate a set of policy and charging control (PCC) rules and an updated
set of parameters based on the determined location; transmit the updated set of
parameters and the generated set of PCC rules to the PGW, if the determined TAC
5 is associated to an area having a limited connectivity; and transmit the extracted set
of parameters to the PGW if the determined TAC is associated to an area having a non-limited connectivity.
[0048] In an embodiment, the number of measurements is at least one of
Access Point Name (APN) - Aggregate Maximum Bit Rate (AMBR) Uplink (UL)
10 Attribute Value Pair (AVP), Access Point Name (APN) - Aggregate Maximum Bit
Rate (AMBR) Downlink (DL) Attribute Value Pair (AVP), extended-APN-AMBR-UL AVP, extended-APN-AMBR-DL AVP and/or conditional-APN- AMBR AVP.
[0049] In an embodiment, the set of parameters includes extended Access
Point Name (APN) Aggregate Maximum Bit Rate (AMBR) Downlink (DL)/Uplink
15 (UL) Attribute Value Pairs (AVPs).
[0050] The present disclosure discloses a method of configuring dual
connectivity to a user equipment (UE). The method includes receiving, by an input unit, a number of measurements associated with a user equipment (UE) session from a packet data network (PDN) gateway (PGW). The method includes
20 extracting, by a processor, a set of parameters from the number of measurements.
The method includes determining, by the processor, a current location of the user equipment using a tracking area code (TAC). The method includes generating, by the processor, a set of policy and charging control (PCC) rules and an updated set of parameters based on the determined location. The method includes transmitting,
25 by the processor, the updated set of parameters and the generated set of PCC rules
to the PGW, if the determined TAC is associated to an area having limited connectivity. The method includes transmitting, by the processor, the extracted set of parameters to the PGW if the determined TAC is associated to an area having non-limited connectivity.
9

[0051] The present disclosure discloses a system for configuring dual
connectivity to a user equipment (UE). The system is configured to receive, by a
policy and charging rules function (PCRF), a number of measurements associated
with a user equipment (UE) session from a packet data network (PDN) gateway
5 (PGW). The system is configured to extract, by the PCRF, a set of parameters from
the number of measurements. The system is configured to determine, by the PCRF,
a current location of the user equipment using a tracking area code (TAC). The
system is configured to generate, by the PCRF, a set of Policy and Charging Control
(PCC) rules and an updated set of parameters based on the determined location. The
10 system is configured to transmit, by the PCRF, the updated set of parameters and
the generated set of PCC rules to the PGW, if the determined TAC is associated to an area having limited connectivity. The system is configured to transmit, by the PCRF, the extracted set of parameters to the PGW if the determined TAC is associated to an area having non-limited connectivity.
15 [0052] The present disclosure discloses a computer program product to
configure configuring dual connectivity to a user equipment (UE). The instruction comprises receiving a number of measurements associated with a user equipment (UE) session from a packet data network (PDN) gateway (PGW). The instruction includes extraction of a set of parameters from said number of measurements and
20 determine a current location of said user equipment using a tracking area code
(TAC). The instruction comprises generating a set of policy and charging control (PCC) rules and an updated set of parameters based on said determined location and transmit said updated set of parameters and said generated set of PCC rules to said PGW, if said determined TAC is associated to an area having a limited
25 connectivity. The instruction comprises transmission of the said extracted set of
parameters to said PGW if said determined TAC is associated to an area having a non-limited connectivity.
[0053] The present disclosure discloses a network function for configuring
dual connectivity to a user equipment (UE), wherein the network function is a
30 policy and charging rules function (PCRF). The network function is configured to
10

receive a number of measurements associated with a user equipment (UE) session
from a packet data network (PDN) gateway (PGW). The network function is
configured to extract a set of parameters from the number of measurements. The
network function is configured to determine a current location of the user
5 equipment using a tracking area code (TAC). The network function is configured
to generate a set of policy and charging control (PCC) rules and an updated set of
parameters based on the determined location. The network function is configured
to transmit the updated set of parameters and the generated set of PCC rules to the
PGW, if the determined TAC is associated to an area having limited connectivity.
10 The network function is configured to transmit the extracted set of parameters to
the PGW if the determined TAC is associated to an area having non-limited connectivity.
[0054] In an exemplary embodiment, the present invention discloses a user
equipment (UE) communicatively coupled with a network. The coupling comprises
15 steps of receiving, by the network, a connection request from the UE, sending, by
the network, an acknowledgment of the connection request to the UE and transmitting a plurality of signals in response to the connection request for implementing a method of configuring dual connectivity for one or more user equipments (UEs) which includes receiving, by an input unit, a number of
20 measurements associated with a user equipment (UE) session from a packet data
network (PDN) gateway (PGW), extracting, by a processor, a set of parameters from said number of measurements, determining, by said processor, a current location of said user equipment using a tracking area code (TAC), generating, by said processor, a set of policy and charging control (PCC) rules and an updated set
25 of parameters based on said determined location, transmitting, by said processor,
said updated set of parameters and said generated set of PCC rules to said PGW, if said determined TAC is associated to an area having limited connectivity, and transmitting, by said processor, said extracted set of parameters to said PGW if said determined TAC is associated to an area having non-limited connectivity.
30 BRIEF DESCRIPTION OF THE DRAWINGS
11

[0055] In the figures, similar components and/or features may have the
same reference label. Further, various components of the same type may be
distinguished by following the reference label with a second label that distinguishes
among the similar components. If only the first reference label is used in the
5 specification, the description is applicable to any one of the similar components
having the same first reference label irrespective of the second reference label.
[0056] The diagrams are for illustration only, which thus is not a limitation
of the present disclosure, and wherein:
[0057] FIG. 1 illustrates an exemplary network architecture for
10 implementing a system for configuring dual connectivity to one or more user
equipments (UEs), in accordance with an embodiment of the present disclosure.
[0058] FIG. 2 illustrates an exemplary sequence of steps for representing
providing of an additional support of the extended dual connectivity (APN AMBR
DL UL AVPs) on a Gx interface, in accordance with an embodiment of the
15 disclosure.
[0059] FIG. 3 illustrates an exemplary representation of a network function
for providing an additional support of the extended dual connectivity on the Gx interface, in accordance with an embodiment of the disclosure.
[0060] FIG. 4 illustrates an exemplary flow chart of a method for
20 configuring dual connectivity to a plurality of user equipments (UEs), in accordance
with an embodiment of the present disclosure.
[0061] 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.
25 [0062] The foregoing shall be more apparent from the following more
detailed description of the disclosure.
12

LIST OF REFERENCE NUMERALS
100 - Network Architecture
104-1, 104-2… 104-N - User Equipments
106 - Network 5 108 - System
110 - Memory
112 - Input Unit
114 - Processor
302 - Deep Packet Inspection (DPI) 10 304 - Session management function (SMF)
306 - Charging Function (CHF)
308 - Binding Support Function (BSF)
310 - Network Repository Function (NRF)
312 - Access and Mobility Management Function (AMF) 15 314 - Application Function (AF)
316 - Online Charging System (OCS)
318 - Packet Data Network Gateway (PGW)
320 - Network Management System (NMS)
322 - Subscriber Profile Repository (SPR) 20 324 - (PCF+PCRF) Network Function
400 - Method
510 - External Storage Device
520 - Bus
530 - Main Memory 25 540 - Read Only Memory
550 - Mass Storage Device
560 - Communication Port
570 - Processor
DETAILED DESCRIPTION OF DISCLOSURE
13

[0063] 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
5 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 any 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. Example embodiments of
10 the present disclosure are described below, as illustrated in various drawings in
which like reference numerals refer to the same parts throughout the different drawings.
[0064] The ensuing description provides exemplary embodiments only, and
is not intended to limit the scope, applicability, or configuration of the disclosure.
15 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.
20 [0065] 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
25 obscure the embodiments in unnecessary detail. In other instances, well-known
circuits, processes, algorithms, structures, and techniques may be shown without unnecessary detail in order to avoid obscuring the embodiments.
[0066] 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
14

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
5 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.
[0067] The word “exemplary” and/or “demonstrative” is used herein to
10 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
15 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 like the term “comprising” as an open transition word without precluding any additional or other elements.
20 [0068] 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
25 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.
[0069] The terminology used herein is to describe particular embodiments
only and is not intended to be limiting the disclosure. As used herein, the singular
15

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
5 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 combinations of one or more of the associated listed items. It should be noted that the terms “mobile device”, “user equipment”, “user device”, “communication device”, “device” and similar terms
10 are used interchangeably for the purpose of describing the invention. These terms
are not intended to limit the scope of the invention or imply any specific functionality or limitations on the described embodiments. The use of these terms is solely for convenience and clarity of description. The invention is not limited to any particular type of device or equipment, and it should be understood that other
15 equivalent terms or variations thereof may be used interchangeably without
departing from the scope of the invention as defined herein.
[0070] As used herein, an “electronic device”, or “portable electronic
device”, or “user device” or “communication device” or “user equipment” or “device” refers to any electrical, electronic, electromechanical, and computing
20 device. The user device is capable of receiving and/or transmitting one or
parameters, performing function/s, communicating with other user devices, and transmitting data to the other user devices. The user equipment may have a processor, a display, a memory, a battery, and an input-means such as a hard keypad and/or a soft keypad. The user equipment may be capable of operating on any radio
25 access technology including but not limited to IP-enabled communication, Zig Bee,
Bluetooth, Bluetooth Low Energy, Near Field Communication, Z-Wave, Wi-Fi, Wi-Fi direct, etc. For instance, the user equipment may include, but not limited to, a mobile phone, smartphone, virtual reality (VR) devices, augmented reality (AR) devices, laptop, a general-purpose computer, desktop, personal digital assistant,
16

tablet computer, mainframe computer, or any other device as may be obvious to a person skilled in the art for implementation of the features of the present disclosure.
[0071] Further, the user device may also comprise a “processor” or
“processing unit” includes processing unit, wherein processor refers to any logic
5 circuitry for processing instructions. The processor may be a general-purpose
processor, a special purpose processor, a conventional processor, a digital signal
processor, a plurality of microprocessors, one or more microprocessors in
association with a digital signal processing (DSP) core, a controller, a
microcontroller, Application Specific Integrated Circuits, Field Programmable
10 Gate Array circuits, any other type of integrated circuits, etc. The processor may
perform signal coding data processing, input/output processing, and/or any other functionality that enables the working of the system according to the present disclosure. More specifically, the processor is a hardware processor.
[0072] As portable electronic devices and wireless technologies continue to
15 improve and grow in popularity, the advancing wireless technologies for data
transfer are also expected to evolve and replace the older generations of
technologies. In the field of wireless data communications, the dynamic
advancement of various generations of cellular technology are also seen. The
development, in this respect, has been incremental in the order of second generation
20 (2G), third generation (3G), fourth generation (4G), and now fifth generation (5G),
and more such generations are expected to continue in the forthcoming time.
[0073] Radio Access Technology (RAT) refers to the technology used by
mobile devices/ user equipment (UE) to connect to a cellular network. It refers to
the specific protocol and standards that govern the way devices communicate with
25 base stations, which are responsible for providing the wireless connection. Further,
each RAT has its own set of protocols and standards for communication, which define the frequency bands, modulation techniques, and other parameters used for transmitting and receiving data. Examples of RATs include GSM (Global System for Mobile Communications), CDMA (Code Division Multiple Access), UMTS
17

(Universal Mobile Telecommunications System), LTE (Long-Term Evolution),
5G, 6G and more such successive generations. The choice of RAT depends on a
variety of factors, including the network infrastructure, the available spectrum, and
the mobile device's/device's capabilities. Mobile devices often support multiple
5 RATs, allowing them to connect to different types of networks and provide optimal
performance based on the available network resources.
[0074] While considerable emphasis has been placed herein on the
components and component parts of the preferred embodiments, it will be appreciated that many embodiments can be made and that many changes can be
10 made in the preferred embodiments without departing from the principles of the
disclosure. These and other changes in the preferred embodiment as well as other 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 interpreted merely as illustrative of the disclosure and
15 not as a limitation.
[0075] Policy and Charging Rules Function (PCRF) plays a crucial role in
5G networks, particularly in Non-Standalone (NSA) deployments where 5G is
deployed alongside existing 4G infrastructure. Dual connectivity in 5G NSA
involves simultaneous connections to both 4G and 5G networks to enhance data
20 rates and reliability. When it comes to the IP Connectivity Access Network (IP-
CAN) session establishment or modification in a 5G NSA environment, the PCRF needs to support Extended Bandwidth Attribute Value Pairs (AVPs). AVPs are used in the Diameter protocol, which is commonly used in 3GPP networks for communication between network elements.
25 [0076] In the context of Extended Bandwidth AVPs, these are parameters
or attributes that convey information about the available or allocated bandwidth for a particular IP-CAN session. Extended Bandwidth AVPs are essential for supporting dual connectivity in 5G NSA because they allow the PCRF to make informed decisions about policy and charging based on the available bandwidth
18

across both 4G and 5G connections. The PCRF uses these AVPs to enforce policies related to Quality of Service (QoS), charging, and other aspects of the user's data session. This ensures that the user experience is optimized, and network resources are utilized efficiently.
5 [0077] In summary, for successful dual connectivity in 5G NSA, the PCRF
should be capable of understanding and processing Extended Bandwidth AVPs during the establishment or modification of IP-CAN sessions. This capability enables the PCRF to manage policies and charging effectively, considering the combined bandwidth from both the 4G and 5G connections.
10 [0078] For a 5G non-standalone (5G NSA) device, an extended-Access
Point Name-Aggregate Maximum Bit Rate (APN-AMBR) value and the APN-AMBR value, both come in Credit Control Request Initial (CCR-I) message. The network function (Policy and Charging Rules Function (PCRF)) is configured to send only the extended-APN-AMBR value with a new policy and charging control
15 (PCC) rule in the Credit Control Answer Initial (CCA-I) message.
[0079] The network function is configured to send modified policy rules
based on user location, and when the user moves into a specific Tracking Area
Location (TAL) for which throttling by network requirement is in effect, the PCRF
is configured to modify the Extended-APN-AMBR Downlink (DL)/ Uplink (UL)
20 values without affecting other network services. The user is not required to re-attach
to the network to throttle or throttle back to get default Quality of Service (QoS) information from a Subscriber Profile Repository (SPR).
[0080] The various embodiments throughout the disclosure will be
explained in more detail with reference to FIG. 1- FIG. 4.
25 [0081] FIG. 1 illustrates an example network architecture (100) for
implementing a system (108) for configuring dual connectivity to one or more of user equipments (UEs), in accordance with an embodiment of the present disclosure.
19

[0082] As illustrated in FIG. 1, one or more user equipments 104-1, 104-
2…104-N) are connected to the system (108) through a network 106. A person of
ordinary skill in the art will understand that the one or more user equipments 104-
1, 104-2…104-N are collectively referred as user equipments 104 and individually
5 referred as a computing device 104.
[0083] In an embodiment, the user equipment 104 includes, but not be
limited to, a mobile, a laptop, etc. Further, the user equipment 104 includes one or
more in-built or externally coupled accessories including, but not limited to, a visual
aid device such as a camera, audio aid, microphone, or keyboard. Furthermore, the
10 user equipment 104 includes a mobile phone, smartphone, virtual reality (VR)
devices, augmented reality (AR) devices, a laptop, a general-purpose computer, a desktop, a personal digital assistant, a tablet computer, and a mainframe computer. Additionally, input devices for receiving input from the user such as a touchpad, touch-enabled screen, electronic pen, and the like may be used.
15 [0084] In an embodiment, the network 106 includes, 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 106 also
20 includes, 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, or some
25 combination thereof.
[0085] As shown in FIG. 1, the system (108) includes a memory (110), an
input unit (112), and a processor (114). The memory (110) is configured to store a pre-defined set of processing rules. The input unit is configured to receive a number
20

of measurements associated with a user equipment (UE) session from a packet data network (PDN) gateway (PGW) (located within the network (106)).
[0086] The processor (114) is configured to cooperate with the input unit
(112) to receive the digital number of measurements, and further configured to
5 cooperate with the memory (110) to process the received information using the pre-
defined set of processing rules. In an aspect, the number of measurements is at least one of Access Point Name (APN) - Aggregate Maximum Bit Rate (AMBR) UL Attribute Value Pair (AVP), APN- AMBR -DL AVP, extended-APN-AMBR-UL AVP, extended-APN-AMBR-DL AVP and/or conditional-APN- AMBR AVP.
10 [0087] The processor (114) is configured to fetch a number of
measurements associated with a user equipment (UE) session from a packet data network (PDN) gateway (PGW) and extracts a set of parameters from the received number of measurements. In an aspect, the set of parameters includes extended Access Point Name (APN) Aggregate Maximum Bit Rate (AMBR) Downlink
15 (DL)/Uplink (UL) Attribute Value Pairs (AVPs).
[0088] The processor (114) is configured to generate a set of policy and
charging control (PCC) rules and an updated set of parameters based on the determined location. The updated set of parameters includes a throttle extended APN-AMBR UL value and a throttle extended APN-AMBR DL value. The
20 processor (114) is configured to determine a current location of the user equipment
using a tracking area code (TAC). The processor (114) transmits the updated set of parameters and the generated set of PCC rules to the PGW, if the determined TAC is associated to an area having a limited connectivity. Otherwise, the processor (114) transmits the extracted set of parameters to the PGW if the determined TAC
25 is associated to an area having a non-limited connectivity.
[0089] In an exemplary embodiment, the system (108) may be embedded
with or within a network function. In an example, the network function is a PCRF. The PCRF is configured to receive a plurality of requests from the PGW via a Gx interface. In an aspect, the plurality of requests includes a Credit Control Request
21

Initial (CCR-I) message, and a Credit Control Request Update (CCR-U) message.
In another example, the PCRF is configured to transmit a plurality of requests to
the PGW via the Gx interface. In an aspect, the plurality of requests includes a
Credit Control Answer (CCA-I) message; and a Credit Control Answer Update
5 (CCA-U) message.
[0090] In an exemplary embodiment, an additional support of the extended
APN AMBR DL UL AVPs on a Gx interface is provided to PCRF. The below mentioned execution steps are performed at a server level/PCRF level.
1. The PCRF (coupled/embedded with the system (108)) saves the APN-
10 AMBR UL/DL values for all the users to support a use case and assign the
APN-AMBR values (which comes in the CCR-I) after the user moves from a throttle tracking area code (TAC) to non-throttle TAC (LTE).
2. If the user moves from the throttle TAC to the non-throttle TAC (NR), then
the PCRF sends the extended-APN-AMBR values in CCA-U for a 5G NSA
15 supported device.
3. For the 5G NSA UE, the extended-APN-AMBR and APN-AMBR both may
come in CCR-I, but the PCRF sends only the extended-APN-AMBR value
with PCC rules in the CCA-I. The PCRF defines a new PCC rule for
installing the extended-APN-AMBR and installs existing PCC rules when
20 only the APN-AMBR is received, irrespective of the throttling or the non-
throttling scenario.
4. The PCRF application stores the extended-APN-AMBR DL/UL values for
all 5G NSA users to support this use case.
5. When the PCRF receives create/update requests for the throttled service
25 area locations from PGW-C, it provides the basic rules along with the
Extended-APN-AMBR values in order to reduce the data transfer rate.
22

6. When the 5G NSA user moves out of this throttle location, the PGW-C may
send an update request with updated location details. Then, the PCRF
provides rules with the original extended-APN-AMBR in the QoS
information without getting this information from the SPR. If the
5 subscribers are having different extended-APN-AMBR values, the PCRF
provides previous AMBR values without detach-attach procedure.
[0091] FIG. 2 illustrates an exemplary flowchart representing steps of a
method (200) of providing an additional support of the extended dual connectivity.
In an aspect, the steps are performed by the PCF and PCRF for providing the
10 additional support of the extended dual connectivity (APN AMBR DL UL AVPs)
on the Gx interface, in accordance with an embodiment of the disclosure.
[0092] At step 202, the PCRF (system 108) is configured to receive a
number of measurements associated with a user equipment (UE) session from a
packet data network (PDN) gateway (PGW) or PDN Gateway CP (PGW-C). In an
15 exemplary embodiment, the number of measurements is at least one of APN-
Aggregate-Max-Bitrate UL AVP, APN-Aggregate-Max-Bitrate-DL AVP, extended-APN-AMBR-UL AVP, extended-APN-AMBR-DL AVP and/or conditional-APN-Aggregate-Max-Bitrate AVP.
[0093] At step 204, the PCRF is configured to extract the extended-APN-
20 AMBR-UL AVP, and extended-APN-AMBR-DL AVP from the received
measurements and transmits the same to the PGW-C. In an aspect, the PCG-W is configured to store the received values for this session.
[0094] At step 206, when the UE moves from a non-barring area (non-
limited connectivity) to barring area (limited connectivity), and the PCRF is
25 configured to receive CCR-U having a notification of tracking area code (TAC)
change notification.
[0095] At step 208, the PCRF is configured to transmit the extracted set of
parameters and a generated set of PCC rules to the PGW using CCA-U. In an
23

example, the extracted set of parameters includes throttle extended APN-AMBR UL/DL values.
[0096] At step 210, when the UE moves from a barring area (limited
connectivity) to non-barring area (non- limited connectivity), the PCRF is
5 configured to receive CCR-U having a notification of tracking area code (TAC)
change notification.
[0097] At step 212, the PCRF is configured to transmit the original extended
APN-AMBR UL/DL values to the PGW using CCA-U.
[0098] FIG. 3 illustrates a connectivity diagram of various
10 connections/interfaces between the network function (324) and other modules
(functions) in a 5G network. In an embodiment, the network function (324)
provides an additional support of the extended dual connectivity on the Gx
interface, in accordance with an embodiment of the disclosure. As shown in FIG.
3, the network function (324) is connected to a deep packet inspection (DPI) 302, a
15 session management function (SMF) 304, a charging function (CHF) 306, a binding
support function (BSF) 308, a network repository function (NRF) 310, an access
and mobility management function (AMF) 312, an application function (AF) 314,
an online charging system (OCS) 316, a packet data network gateway (PGW) 318,
a network management system (NMS) 320, and a subscriber profile repository
20 (SPR) 322.
[0099] In an aspect, the deep packet inspection (DPI) 302 examines and
analyses the content of data packets as they pass through the network. The deep
packet inspection (DPI) 302 enables traffic management, network security, and
application optimization by inspecting and classifying data packets based on
25 content. In an aspect, the DPI communicates with the network function through the
Sd interface. The Sd interface supports reporting of the start and the stop of a detected application’s traffic and transfer of service data flow descriptions for detected applications.
24

[00100] In an aspect, the session management function (SMF) 304 manages
and controls user sessions in the 5G network. The session management function
(SMF) 304 facilitates the establishment, modification, and termination of user
sessions, ensuring efficient and secure communication. In an aspect, the SMF
5 communicates with the network function via N7 interface. The N7 interface triggers
session management policies towards a session management function (SMF).
[00101] In an aspect, the charging function (CHF) 306 manages charging and
billing aspects for subscriber services. The charging function (CHF) 306 handles
charging and billing information related to data usage, ensuring accurate billing for
10 the provided services. In an aspect, the CHF communicates with the network
function via N28 interface. N28 interface supports the key charging and quota handling scenarios.
[00102] In an aspect, the binding support function (BSF) 308 supports the
binding of the user plane to the user's data session. The binding support function
15 (BSF) 308 assists in establishing and maintaining connections between the user
plane and user's data session, contributing to seamless data communication. In an aspect, the BSF communicates with the network function via Nbfs.
[00103] In an aspect, the network repository function (NRF) 310 supports the
service discovery function, maintains NF profile and available NF instances. The
20 network repository function (NRF) 310 supports the network in discovering and
selecting appropriate network functions and instances to optimize service delivery. In an aspect, the NRF communicates with the network function via Nnrf.
[00104] In an aspect, the access and mobility management function (AMF)
312 manages access and mobility aspects for user devices in the 5G network. The
25 access and mobility management function (AMF) 312 handles access control,
mobility management, and connection establishment for user devices. In an aspect, the AMF communicates with the network function via N15 interface. The N15 interface is between the Policy Control Function (PCF) and the Access and Mobility Management Functions (AMF) in the case of a non-roaming scenario, or the Visited
25

PCF (vPCF) and Access and Mobility Management Functions (AMF) in case of a roaming scenario.
[00105] In an aspect, the application function (AF) 314 manages and
optimizes application-level functions and services. The application function (AF)
5 314 supports service-specific functionalities and optimizations for various
applications running on the 5G network. In an aspect, the AF communicates with the network function via Rx interface. The Rx interface enables transport of application-level session information from P-CSCF to PCRF.
[00106] In an aspect, the online charging system (OCS) 316 handles real-
10 time charging and credit management for subscriber services. The online charging
system (OCS) 316 enables real-time monitoring and charging for data usage and
services, ensuring accurate billing and credit management. In an aspect, the OCS
communicates with the network function via Sy interface. The Sy interface
connects the PCRF and OCS. It enables the transfer of subscriber spending
15 information from the OCS to PCRF.
[00107] In an aspect, the packet data network gateway (PGW) 318 connects
the 5G network to external data networks. The packet data network gateway (PGW)
acts as a gateway for data traffic, providing connectivity between the 5G network
and external data networks, including the internet. In an aspect, the PGW
20 communicates with the network function via Gx interface.
[00108] In an aspect, the network management system (NMS) 320 manages
and monitors the overall performance of the 5G network. The network management system (NMS) facilitates the configuration, monitoring, and maintenance of network elements to ensure efficient and reliable network operation.
25 [00109] In an aspect, the subscriber profile repository (SPR) 322 stores and
manages subscriber profiles and subscription-related information. The subscriber profile repository (SPR) 322 provides a centralized repository for subscriber data, supporting authentication and authorization processes.
26

[00110] In an aspect, the network function (PCF+ PCRF) 324 enforces
policies and rules related to network resource usage, quality of service, and
charging. The network function ensures the efficient allocation of network
resources, enforces quality of service policies, and facilitates dynamic charging
5 based on service usage.
[00111] In an exemplary embodiment, the user equipment (UE) requests the
Access and mobility management (AMF) for a service. Based on the requested service, a Session Management Function (SMF) is selected for managing the user session.
10 [00112] In an aspect, the N15 interface is a reference point for interaction
between the network function (PCF+PCRF) 324 and AMF 312.
[00113] In an aspect, the N7 interface is a reference point for interaction
between the network function (PCF+PCRF) 324 and SMF 304 during session establishment and modification.
15 [00114] In an aspect the N28 interface is a reference point for interaction
between the network function (PCF+PCRF) 324 and CHF 306. The interface supports key charging and quota handling services in the network services.
[00115] The disclosed system and method facilitate to efficiently manage
network resources by allocating and controlling the maximum data transfer rate.
20 Further, it prevents network congestion/outages and smoothens overall network
experience. In addition, a re-attach to the network is not required when the user comes out of a throttled location to experience basic data transfer rate. Furthermore, this ensures the other network services like audio or video calls are not affected.
[00116] FIG. 4 illustrates an exemplary flow chart of a method (400) for
25 configuring dual connectivity to one or more user equipments (UEs), in accordance
with an embodiment of the present disclosure.
27

[00117] In an aspect, dual connectivity in 5G NSA involves simultaneous
connections to both 4G and 5G networks to enhance data rates and reliability. The
combination of 5G and 4G LTE may provide additional bandwidth that increases
5G network speed and reliability. Dual connectivity enables user equipment to
5 maintain uninterrupted and smooth communication.
[00118] At step 402, the method (400) involves receiving a number of
measurements associated with a user equipment (UE) session from a packet data network (PDN) gateway (PGW) via an input unit.
[00119] In an aspect, the packet data network (PDN) gateway (PGW) acts as
10 a gateway for data traffic, providing connectivity between the 5G network and
external data networks, including the internet. The number of measurements associated with the user equipment session is received via the input unit from a packet data network (PDN) gateway.
[00120] In an exemplary aspect, the number of measurements is at least one
15 of APN-Aggregate-Max-Bitrate UL AVP, APN-Aggregate-Max-Bitrate-DL AVP,
extended-APN-AMBR-UL AVP, extended-APN-AMBR-DL AVP and/or conditional-APN-Aggregate-Max-Bitrate AVP.
[00121] At step 404, a processor extracts a set of parameters from the
received measurements. In an aspect, the set of parameters includes extended
20 Access Point Name (APN) Aggregate Maximum Bit Rate (AMBR) Downlink
(DL)/Uplink (UL) Attribute Value Pairs (AVPs).
[00122] In an exemplary aspect, the processor extracts the set of parameters
by sending a Credit Control Request Initial (CCR-I) message to the PCRF
configured in the user equipment and receives the extended Access Point Name
25 (APN) Aggregate Maximum Bit Rate (AMBR) Downlink (DL)/Uplink (UL)
Attribute Value Pairs (AVPs).
28

[00123] At step 406, a user equipment’s current location is determined by the
processor using a tracking area code (TAC). In an aspect, the user equipment’s current location may include the present location, remote location and varying location as per the user movement.
5 [00124] In an exemplary aspect, the processor determines the current location
of the user equipment by the tracking area code (TAC). The tracking area code
(TAC) is a numerical identifier used in cellular network to identify user equipment
location. The location may be determined by the processor using location service
configured in the user equipment. The location service includes GPS, Wi-fi, mobile
10 network and sensors.
[00125] At step 408, the method (400) includes generation of a set of policy
and charges control (PCC) rules and updating the set of parameters based on the determined user equipment location.
[00126] In an exemplary aspect, the processor generates a set of policy and
15 charging control (PCC) rules and an updated set of parameters based on the
determined location. The processor sends the Credit Control Request Initial (CCR-
I) message to the PCRF configured in the user equipment and receives the set of
policy and charging control (PCC) via the Credit Control Answer Initial (CCA-I)
message. The updated set of parameters includes a throttle extended APN-AMBR
20 UL value and a throttle extended APN-AMBR DL value. The throttle extended
APN-AMBR Uplink or Downlink value indicates the maximum aggregate bit rate in kbit per second for uplink or downlink direction.
[00127] In an exemplary aspect the processor generates a set of policy and
charging control (PCC) rule by sending the Credit Control Request Initial (CCR-I)
25 message to the PCRF configured in the user equipment and receives the set of policy
and charging control (PCC) via the Credit Control Answer Initial (CCA-I) message using the information collected from various network functions such as the SMF, AMF, CHF, UDR, AF, etc.
29

[00128] In an aspect, the determined location may include the user
equipment’s present location, remote location and varying location according to the user movement.
[00129] At Step 410, the type of the connectivity area based on the tracking
5 area code (TAC) is determined. In an aspect the type of connectivity area includes
limited connectivity area (barring area) and non-limited connectivity area (non-
barring area). In an aspect, the limited connectivity area are locations where the user
equipment faces an error in communicating with network and the non-limited
connectivity area are locations where the user equipment has good communication
10 with the network.
[00130] At Step 412, the method (400) involves transmission of an updated
set of parameters and generated set of PCC rules to PCW, if the determined TAC is
associated with limited connectivity area. In an aspect, the updated set of parameters
includes a throttle extended APN-AMBR UL value and a throttle extended APN-
15 AMBR DL value.
[00131] In an aspect, the set of PCC rules are information that is required to
be applied on the user equipment for better and efficient communication. The PCC rules are applied based on the user’s network traffic.
[00132] At Step 414, the method (400) involves transmission of the processor
20 extracted set of parameters to PGW, if the determined TAC is associated to a non-
limited connectivity area. In an aspect, the non-limited connectivity area where the user equipment has good connectivity with the network.
[00133] In an exemplary embodiment, the present invention discloses a user
equipment (UE) (104) communicatively coupled with a network (106). The
25 coupling comprises steps of receiving, by the network (106), a connection request
from the UE (104) , sending, by the network (106) , an acknowledgment of the connection request to the UE and transmitting a plurality of signals in response to the connection request for implementing a method of configuring dual connectivity
30

for one or more user equipments (UEs) which includes receiving, by an input unit,
a number of measurements associated with a user equipment (UE) session from a
packet data network (PDN) gateway (PGW), extracting, by a processor, a set of
parameters from said number of measurements, determining, by said processor, a
5 current location of said user equipment using a tracking area code (TAC),
generating, by said processor, a set of policy and charging control (PCC) rules and
an updated set of parameters based on said determined location, transmitting, by
said processor, said updated set of parameters and said generated set of PCC rules
to said PGW, if said determined TAC is associated to an area having limited
10 connectivity, and transmitting, by said processor, said extracted set of parameters
to said PGW if said determined TAC is associated to an area having non-limited connectivity.
[00134] FIG. 5 illustrates an exemplary computer system (500) in which or
with which embodiments of the present disclosure may be implemented. As shown
15 in FIG. 5, the computer system 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
20 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, such a Local Area Network (LAN), Wide Area
25 Network (WAN), or any network to which the computer system connects.
[00135] 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
30 e.g., start-up or Basic Input/Output System (BIOS) instructions for the processor
31

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 device 550 includes, but is not limited to, Parallel Advanced
Technology Attachment (PATA) or Serial Advanced Technology Attachment
5 (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.
[00136] The bus 520 communicatively couples the processor 570 with the
other memory, storage, and communication blocks. The bus 520 may be, e.g., a
10 Peripheral Component Interconnect (PCI)/PCI Extended (PCI-X) 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.
15 [00137] 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. Components described above are meant
20 only to exemplify various possibilities. In no way should the aforementioned
exemplary computer system limit the scope of the present disclosure.
[00138] The present system is configured to provide extended dual
connectivity to the user equipment (UE). In 5G NSA deployments, PCRF is crucial
for IP-CAN session establishment or modification. For successful dual
25 connectivity, PCRF needs to support Extended Bandwidth AVPs. These AVPs
provide information about available or allocated bandwidth, enabling PCRF to enforce policies related to QoS and charging. This ensures an optimized user experience and efficient network resource utilization. With the fast advances of 5G standardization, the present disclosure may be applicable in various use cases where
32

the user is travelling, and it is required to provide high speed connectivity without
switching the user from one network function to another. Storing and forwarding
of the Extended Bandwidth AVPs when connectivity is available ensures that
latency of the network is high. Implementing a robust mechanism for providing
5 Extended Bandwidth AVPs notifications helps in maintaining the integrity of the
application and provides a seamless user experience even in challenging network conditions.
[00139] The method and system of the present disclosure may be
implemented in a number of ways. For example, the methods and systems of the
10 present disclosure may be implemented by software, hardware, firmware, or any
combination of software, hardware, and firmware. The above-described order for the steps of the method is for illustration only, and the steps of the method of the present disclosure are not limited to the order specifically described above unless specifically stated otherwise. Further, in some embodiments, the present disclosure
15 may also be embodied as programs recorded in a recording medium, the programs
including machine-readable instructions for implementing the methods according to the present disclosure. Thus, the present disclosure also covers a recording medium storing a program for executing the method according to the present disclosure.
20 [00140] The present disclosure provides technical advancement related to
wireless cellular communication. This advancement addresses the limitations of existing solutions by providing a system and method for dual connectivity in 5G NSA. The system and method enable PCRF to understand and process the Extended Bandwidth AVPs during the establishment or modification of IP-CAN sessions.
25 The PCRF manages the policies and charging effectively, considering the combined
bandwidth from both the 4G and 5G connections. The disclosure involves modifying the Extended-APN-AMBR DL/UL values without affecting other network services, which offer significant improvements in efficiently managing the network resources by allocating and controlling the maximum data transfer rate. By
30 implementing modifying policy rules based on user location, the disclosed
33

invention enhances overall network experience, resulting in achieving the desired dual connectivity in the user equipment.
[00141] While considerable emphasis has been placed herein on the preferred
embodiments, it will be appreciated that many embodiments can be made and that
5 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
10 not as a limitation.
ADVANTAGES OF THE PRESENT DISCLOSURE
[00142] The present disclosure provides an additional support of extended
Access Point Name-Aggregate Maximum Bit Rate (APN-AMBR)
Downlink/Uplink Attribute Value Pairs (AVPs) on a Gx interface.
15 [00143] The present disclosure provides an extended-APN-AMBR value and
APN-AMBR value to come in Credit Control Request Initial (CCR-I) message. The PCRF may send only the extended-APN-AMBR value with a new policy and charging control (PCC) rule in a Credit Control Answer Initial (CCA-I) message.
[00144] The present disclosure enables the PCRF to send modified policy
20 rules based on user location, and when the user moves into a location with a specific
tracking area code for which the throttling by network requirement is in effect, the PCRF modifies the Extended-APN-AMBR DL/UL values without affecting other network services.
[00145] The present disclosure enables the user to forgo re-attaching to the
25 network to throttle or throttle back to get the default QoS information from
Subscriber Profile Repository (SPR).
34

[00146] The present disclosure efficiently manages network resources by
allocating and controlling a maximum data transfer rate.
[00147] The present disclosure prevents network congestion/outages and
smoother overall network experience.
[00148] The present disclosure facilitates to forgo the user re-attach to the
network, when the user comes out of a throttled location to experience basic data transfer rate.
[00149] The present disclosure facilitates to not affect other network services
like audio or video calls.

WE CLAIM:
1. A system (108) for configuring dual connectivity for one or more user equipments (UEs), said system (108) comprising:
a memory (110) configured to store a pre-defined set of processing rules;
an input unit (112) configured to receive a number of measurements associated with a user equipment (UE) session from a packet data network (PDN) gateway (PGW); and
a processor (114) configured to cooperate with said input unit to receive said number of measurements, and further configured to cooperate with said memory to process said received measurements using said pre-defined set of processing rules to:
extract a set of parameters from said number of measurements;
determine a current location of said user equipment using a tracking area code (TAC);
generate a set of policy and charging control (PCC) rules and an updated set of parameters based on said determined location;
transmit said updated set of parameters and said generated set of PCC rules to said PGW, if said determined TAC is associated to an area having a limited connectivity; and
transmit said extracted set of parameters to said PGW if said determined TAC is associated to an area having a non-limited connectivity.

2. The system (108) as claimed in claim 1, wherein said number of measurements is at least one of Access Point Name (APN)-Aggregate Maximum Bit Rate (AMBR) Uplink (UL) Attribute Value Pair (AVP), Access Point Name (APN)-Aggregate Maximum Bit Rate (AMBR)-Downlink (DL) Attribute Value Pair (AVP), extended-Access Point Name (APN)-Aggregate Maximum Bit Rate (AMBR) Uplink (UL) Attribute Value Pair (AVP), extended-Access Point Name (APN)-Aggregate Maximum Bit Rate (AMBR) Downlink (DL) Attribute Value Pair (AVP), and conditional- Access Point Name (APN) - Aggregate Maximum Bit Rate (AMBR) Attribute Value Pair (AVP).
3. The system (108) as claimed in claim 1, wherein said set of parameters includes extended APN Aggregate Maximum Bit Rate (AMBR) Downlink (DL)/Uplink (UL) Attribute Value Pairs (AVPs).
4. The system (108) as claimed in claim 1, wherein said updated set of
parameters includes a throttle extended APN-AMBR UL value and a
throttle extended APN-AMBR DL value.
5. The system (108) as claimed in claim 1, comprises a policy and charging rules function (PCRF) configured to receive a plurality of requests from said PGW via a Gx interface, wherein said plurality of requests includes a Credit Control Request Initial (CCR-I) message, and a Credit Control Request Update (CCR-U) message.
6. The system (108) as claimed in claim 1, comprises a policy and charging rules function (PCRF) configured to transmit a plurality of requests to said PGW via said Gx interface, wherein said plurality of requests includes a Credit Control Answer Initial (CCA-I) message; and a Credit Control Answer Update (CCA-U) message.
7. A method (400) of configuring dual connectivity for one or more user equipments (UEs), said method comprising:

receiving (402), by an input unit, a number of measurements associated with a user equipment (UE) session from a packet data network (PDN) gateway (PGW);
extracting (404), by a processor, a set of parameters from said number of measurements;
determining (406), by said processor, a current location of said user equipment using a tracking area code (TAC);
generating (408), by said processor, a set of policy and charging control (PCC) rules and an updated set of parameters based on said determined location;
transmitting (412), by said processor, said updated set of parameters and said generated set of PCC rules to said PGW, if said determined TAC (410) is associated to an area having limited connectivity; and
transmitting (414), by said processor, said extracted set of parameters to said PGW if said determined TAC (410) is associated to an area having non-limited connectivity.
8. The method (400) as claimed in claim 7, wherein said number of measurements is at least one of Access Point Name (APN)-Aggregate Maximum Bit Rate (AMBR) Uplink (UL) Attribute Value Pair (AVP), Access Point Name (APN)-Aggregate Maximum Bit Rate (AMBR)-Downlink (DL) Attribute Value Pair (AVP), extended-Access Point Name (APN)-Aggregate Maximum Bit Rate (AMBR) Uplink (UL) Attribute Value Pair (AVP), extended-Access Point Name (APN)-Aggregate Maximum Bit Rate (AMBR) Downlink (DL) Attribute Value Pair (AVP), and conditional- Access Point Name (APN) - Aggregate Maximum Bit Rate (AMBR) Attribute Value Pair (AVP).

9. The method (400) as claimed in claim 7, wherein said set of parameters
includes extended APN Aggregate Maximum Bit Rate (AMBR) Downlink
(DL)/Uplink (UL) Attribute Value Pairs (AVPs).
10. The method (400) as claimed in claim 7, wherein said updated set of
parameters includes a throttle extended APN-AMBR UL value and a
throttle extended APN-AMBR DL value.
11. A user equipment (UE) (104) communicatively coupled with a network
(106), the coupling comprises steps of:
receiving, by the network (106), a connection request from the UE (104);
sending, by the network (106), an acknowledgment of the connection request to the UE (104); and
transmitting a plurality of signals in response to the connection request, wherein configuring dual connectivity for one or more user equipments (UEs) is implemented by a method (400) as claimed in claim 7.