Connection management apparatus for multi access edge computing, and control method thereof

Abstract

The present invention relates to Multi-Access Edge Computing (MEC) technology, and more specifically to an edge access management device that supports direct access to the edge service area closest to the terminal when the terminal uses an edge service, and a method of operation of the edge access management device.

Description

Technology Field

[0001] The present invention relates to Multi-Access Edge Computing (MEC) technology, and more specifically to a method for supporting direct access to the edge service area closest to the terminal when the terminal uses an edge service. Background Technology

[0002] With the development of mobile communication networks for large-capacity data and high-speed transmission, the mobile communication network environment is evolving into, for example, a 5th generation mobile communication network (hereinafter, 5G network) environment that aims for Ultra Reliable & Low Latency Communication (URLLC) services based on near-real-time data transmission and reception.

[0003] As such, at this current stage of development toward 5G networks, technology has been commercialized to evolve and advance toward 5G networks while increasing cost efficiency by utilizing the systems of 4G networks that are already widely deployed and in use.

[0004] This is a Non-Standalone (NSA) technology that utilizes communication services based on interoperability between 4G and 5G networks. It uses a 4G (LTE) network as the primary network to secure seamless coverage, while using a 5G network as the secondary network to transmit and receive data with higher capacity and lower latency.

[0005] Recently, as the final stage of evolution / development into 5G networks, it has reached the commercialization of SA (Standalone) technology, which uses a pure 5G network independently without needing to rely on a 4G network for control information.

[0006] As such, in an environment where the evolution from 4G (LTE) networks to 5G networks is actively underway, Multi-Access Edge Computing (MEC) technology is being attempted to accommodate ultra-low latency / security-sensitive services by deploying computing for application services close to terminals.

[0007] Key growth drivers for edge computing include the Internet of Things (IoT), 4G networks, and next-generation 5G networks.

[0008] In other words, the exponential increase in traffic and the explosion of connected devices mean that network infrastructure must be effectively scaled to transmit large amounts of data, and edge computing can provide the flexibility and agility of the cloud closer to customers to meet these demands.

[0009] In such an edge computing environment, to implement ultra-low latency edge services, edge service zones, which are zones capable of supporting edge services, are distributed by region, thereby providing an infrastructure that allows terminals to use edge services in edge service zones adjacent to themselves.

[0010] In this regard, for a terminal to access an edge service area adjacent to itself, a process to obtain connection information for the said edge service area must be performed beforehand.

[0011] However, in conventional edge computing environments, it may take a somewhat long time for a terminal to obtain connection information of an edge service area adjacent to itself, and this can act as a limitation that renders the ultra-low latency service intended to be implemented in the edge computing environment meaningless.

[0012] Accordingly, the present invention proposes a new method to support access to the edge service area of ​​a terminal in an SA environment. The problem to be solved

[0013] The present invention was created in consideration of the above circumstances, and the objective to be achieved by the present invention is to support direct access to the edge service area closest to the terminal when the terminal uses edge services in an edge computing (MEC, Multi-Access Edge Computing) environment. means of solving the problem

[0014] An edge access management device according to an embodiment of the present invention for achieving the above objective comprises: a generating unit that generates edge routing information for routing edge service traffic of a terminal to an edge service area based on location information of the terminal when the subscription to an edge service of a terminal connected to a mobile communication network is confirmed; and a providing unit that provides the edge routing information to the terminal so that when the terminal uses the edge service, it can directly connect to an edge access server within the edge service area according to the edge routing information.

[0015] Specifically, the generation unit may generate the edge routing information to include the connection information of an edge connection server within a specific edge service area closest to the location information of the terminal among the edge service areas that the terminal can connect to.

[0016] Specifically, when at least one of the size and number of the edge service areas is defined differently for each pre-configured edge service group, the generation unit may generate the edge routing information to include the connection information of an edge connection server within a specific edge service area closest to the location information of the terminal among the edge service areas that the terminal can connect to for each edge service group.

[0017] Specifically, the generation unit can update the edge routing information based on the changed location information whenever the location information of the terminal connected to the mobile communication network changes.

[0018] Specifically, the providing unit may provide the updated edge routing information to the terminal in a push manner when the edge routing information is updated.

[0019] Specifically, the edge routing information may be included in a URSP (UE Route Selection Policy), which is information regarding a policy transmitted to a terminal to route traffic of a terminal connected to the mobile communication network.

[0020] A method of operation of an edge access management device according to an embodiment of the present invention for achieving the above objective may include: a generating step of generating edge routing information for routing edge service traffic of a terminal to an edge service area based on location information of the terminal when the subscription to an edge service of a terminal connected to a mobile communication network is confirmed; and a providing step of providing the edge routing information to the terminal so that when the terminal uses the edge service, it can directly connect to an edge access server within the edge service area according to the edge routing information.

[0021] Specifically, the generation step may generate the edge routing information to include the connection information of an edge connection server within a specific edge service area closest to the location information of the terminal among the edge service areas that the terminal can connect to.

[0022] Specifically, the generation step may generate the edge routing information such that, in cases where at least one of the size and number of the edge service areas is defined differently for each pre-configured edge service group, the edge routing information includes the connection information of an edge connection server within a specific edge service area closest to the location information of the terminal among the edge service areas that the terminal can connect to for each edge service group.

[0023] Specifically, the above method may further include an update step of updating the edge routing information based on the changed location information whenever the location information of the terminal connected to the mobile communication network changes.

[0024] Specifically, the above method may further include a push provision step of providing the updated edge routing information to the terminal in a push manner when the edge routing information is updated.

[0025] Specifically, the edge routing information may be included in a URSP (UE Route Selection Policy), which is information regarding a policy transmitted to a terminal to route traffic of a terminal connected to the mobile communication network. Effects of the invention

[0026] Accordingly, according to the edge access management device and the method of operation of the edge access management device of the present invention, in an edge computing (MEC, Multi-Access Edge Computing) environment, direct access to the nearest edge service area for an edge service subscriber terminal is enabled, thereby actively supporting the implementation of ultra-low latency edge services. Brief explanation of the drawing

[0027] FIG. 1 is an exemplary diagram showing an edge service environment according to an embodiment of the present invention. FIG. 2 is an example diagram illustrating an edge service environment according to the prior art. FIG. 3 is a schematic diagram of an edge connection management device according to an embodiment of the present invention. FIG. 4 is an illustrative diagram for explaining an edge service procedure according to an embodiment of the present invention. FIG. 5 is a flowchart for explaining the operation method of an edge connection management device according to an embodiment of the present invention. Specific details for implementing the invention

[0028] Hereinafter, preferred embodiments of the present invention will be described with reference to the attached drawings.

[0029] FIG. 1 illustrates an edge service environment according to one embodiment of the present invention.

[0030] In one embodiment of the present invention, Multi-Access Edge Computing (MEC) technology is described that can implement ultra-low latency edge services in an Edge Computing Cloud (MEC Cloud) environment existing in a telecommunications carrier's network.

[0031] In such an edge computing environment, to implement ultra-low latency edge services, edge service zones, which are zones capable of supporting edge services, are distributed by region, thereby providing an infrastructure that allows terminals to use edge services in edge service zones adjacent to themselves.

[0032] Each of these edge service areas may include an edge application server (40) that provides each edge service and an edge enabler server (30) that manages connections to edge application servers (40) located within its edge service area.

[0033] Meanwhile, the terminal (10) needs to connect to an edge connection server (30) in an edge service area adjacent to itself in order to use an edge service with ultra-low latency, and to do this, it must obtain connection information of the edge connection server (30).

[0034] For reference, the terminal (10) is equipped with an Edge Enabler Client to support access to the edge service area, and can communicate with the edge connection server (30) and the edge application server (40) through this.

[0035] In this regard, FIG. 2 illustrates an exemplary process of a terminal (10) obtaining connection information of an edge connection server (30) in an edge service environment according to the prior art.

[0036] As illustrated in FIG. 2, unlike the edge service environment according to the prior art, the edge service environment according to one embodiment of the present invention includes the configuration of an edge configuration server (50, Edge Data Network Configuration Server) that provides connection information of an edge connection server (30) adjacent to a terminal (10).

[0037] Here, unlike the configuration of edge connection servers (30) and edge application servers (40) provided for each edge service area, the edge configuration server (50) consists of only one national office responsible for the entire edge service area (nationwide).

[0038] Accordingly, when a terminal (10) in an edge service environment according to the prior art wants to use an edge service, it must unconditionally connect to an edge configuration server (50) to obtain connection information of an edge connection server (30) within the edge service area closest to itself (①-②), and only then can it receive connection information of an edge application server (40) providing edge services from the edge connection server (30) and connect to the edge service (③-⑤).

[0039] As such, in an edge service environment according to the prior art, signaling with an edge configuration server (50) is essential for the terminal (10) to use the edge service, so it may take a somewhat long time for the edge configuration server (50) to obtain connection information from the edge configuration server (50) located at a distance from the terminal (10), which negates the advantages of an edge computing environment that provides ultra-low latency services.

[0040] In addition, in an edge service environment according to the prior art, a push function for the terminal (10) is not supported, so when information related to the edge service or edge service area is updated, there is also the inconvenience of the terminal (10) having to reconnect to the edge service after the edge service is disconnected.

[0041] Accordingly, in one embodiment of the present invention, as a configuration to solve the limitations of the prior art, it further includes the configuration of an edge access management device (20) located in a mobile communication network.

[0042] Here, the mobile communication network refers to, for example, a 5G network with SA (Standalone) technology applied, and the edge access management device (20) may correspond to a PCF (Policy Control Function), which is a server that manages operator policies for terminals (10) in the 5G network.

[0043] Such an edge connection management device (20) can support direct connection to the nearest edge service area for the terminal (10), and below, the configuration of the edge connection management device (20) for realizing this will be explained in more detail.

[0044] FIG. 3 shows a schematic configuration of an edge connection management device (20) according to one embodiment of the present invention.

[0045] As illustrated in FIG. 3, an edge connection management device (20) according to one embodiment of the present invention may include a generating unit (21) that generates edge routing information and a providing unit (22) that provides edge routing information.

[0046] The entire configuration or at least part of the configuration of the edge connection management device (20) may be implemented in the form of a hardware module or a software module, or in a combined form of a hardware module and a software module.

[0047] Here, a software module can be understood as an instruction executed by a processor that processes operations within the edge connection management device (20), for example, and such instruction may be in the form of being loaded in a separate memory within the edge connection management device (20).

[0048] Meanwhile, an edge access management device (20) according to one embodiment of the present invention may have a configuration that, in addition to the above-described configuration, further includes a communication unit (23) that performs actual communication functions with an Access and Mobility Function (AMF) that is responsible for mobility management functions and a UDM (User Data Management) that stores subscriber information such as subscription data and policy data as a configuration within a mobile communication network.

[0049] The edge access management device (20) according to one embodiment of the present invention can support direct access to the nearest edge service area for a terminal (10) connected to a mobile communication network through the above-described configuration, and below, each configuration within the edge access management device (20) for realizing this will be described in more detail.

[0050] The generating unit (21) performs the function of generating edge routing information for routing edge service traffic of the terminal (10).

[0051] More specifically, when the generation unit (21) confirms that the terminal (10) connected to the mobile communication network has subscribed to an edge service, it generates edge routing information to route the edge service traffic of the terminal (10) to an edge service area based on the location information of the terminal (10).

[0052] Here, edge routing information corresponds to, for example, a URSP (UE Route Selection Policy) which is information regarding a policy transmitted to a terminal (10) to route traffic of a terminal (10) connected to a mobile communication network, and such URSP may include a Network Slice Selection Policy (NSSP) for supporting network slicing technology, an SSC Mode Selection Policy (SSCMSP) for supporting SSC mode, and a DNN Selection Policy for selecting a DNN (Data Network Name) corresponding to an APN (Access Point Name) used in EPC.

[0053] At this time, the generating unit (21) can generate edge routing information to include the connection information of an edge connection server (30) within a specific edge service area closest to the location information of the terminal (10) among the edge service areas that the terminal (10) can access for using edge services.

[0054] Here, the location information of the terminal (10) corresponds to, for example, a Tracking Area (TA), and in order to provide connection information of the edge connection server (30) based on such a TA, in one embodiment of the present invention, the connection information of the edge connection server (30) that matches each TA can be managed in User Data Management (UDM) within the mobile communication network.

[0055] In addition, in one embodiment of the present invention, at least one of the size and number of edge service areas may be defined differently for each pre-set edge service group.

[0056] For example, edge services related to AR / VR games, V2X (vehicles), etc., can be classified as Ultra Low Latency Service Groups; in this case, edge service areas can be managed by dividing them into the smallest units to enable access to the relevant edge services from all edge service areas nationwide (e.g., if there are 20 edge service areas nationwide, each of the 20 edge service areas is managed individually).

[0057] As another example, edge services for IoT and Streaming can be managed by setting the edge service area to be larger than the aforementioned Ultra Low Latency Service Group (e.g., if there are 20 edge service areas nationwide, the 20 edge service areas can be divided into 6 areas for management).

[0058] As another example, edge services that are relatively less affected by latency but involve security and other issues can be classified as a Latency-Tolerant Service Group; in this case, the entire edge service area can be managed by setting it to be larger than other groups (e.g., if there are 20 edge service areas nationwide, the 20 edge service areas can be divided into two areas for management).

[0059] In this regard, the generating unit (21) may generate edge routing information such that, as described above, if at least one of the size and number of edge service areas is defined differently for each edge service group, the edge connection server (30) within the specific edge service area closest to the location information of the terminal (10) among the edge service areas that the terminal (10) can connect to for each edge service group is included.

[0060] Meanwhile, in one embodiment of the present invention, it is necessary to consider cases where location information changes due to the movement of a terminal (10) connected to a mobile communication network.

[0061] To this end, when the location information of a terminal (10) connected to a mobile communication network changes, the generation unit (21) updates the edge routing information generated for the terminal (10) based on the connection information of the edge connection server (30) matched by TA managed in the UDM (User Data Management) within the mobile communication network.

[0062] Here, the edge routing information of the terminal (10) that is updated in this way can be transmitted to an edge client (Edge Enabler Client) installed within the terminal (10) in a push manner, and such edge routing information can be updated not only when the location information of the terminal (10) changes, but also when information related to the edge service or edge service area is updated.

[0063] For reference, the above-described procedure for generating edge routing information for a terminal (10) connected to a mobile communication network according to one embodiment of the present invention corresponds, for example, to the procedure ① and ② shown in FIG. 4.

[0064] The providing unit (22) performs the function of providing edge routing information.

[0065] More specifically, when the edge routing information for the terminal (10) is completed, the providing unit (22) provides the generated edge routing information to the terminal (10), so that when the terminal (10) uses the edge service, it can directly connect to the edge connection server (30) within the edge service area closest to itself according to the edge routing information.

[0066] At this time, the providing unit (22) sends the edge routing information generated for the terminal (10) to the Access and Mobility Function (AMF) through a standard interface (e.g., N15) of the mobile communication network, and the AMF that receives this can transmit the edge routing information to the terminal (10) through a standard interface (e.g., N1) via Non Access Stratum (NAS) signaling with the terminal (10).

[0067] For reference, the procedure for transmitting edge routing information to a terminal (10) according to one embodiment of the present invention corresponds to the procedure of ③ in FIG. 4, which was previously exemplified.

[0068] Meanwhile, in this regard, the terminal (10) can obtain connection information of the edge application server (40) by connecting to the edge connection server (30) in the edge service area closest to itself by referring to the connection information within the edge routing information, and can use the edge service by connecting to the edge application server (40) through this.

[0069] For reference, according to one embodiment of the present invention, the procedure for a terminal (10) to use an edge service corresponds to the procedure ④ to ⑥ in FIG. 4, which was previously exemplified.

[0070] As described above, according to the configuration of the edge access management device (20) according to one embodiment of the present invention, in an edge computing (MEC, Multi-Access Edge Computing) environment, when the subscription to an edge service of a terminal (10) connected to a mobile communication network is confirmed, edge routing information for routing edge service traffic is provided to the terminal (10), thereby allowing the terminal (10) to directly connect to the edge access server (30) in the edge service area closest to itself by referring to the edge routing information when using the edge service, so that the time required for the terminal (10) to actually use the edge service can be significantly reduced, thereby actively supporting the implementation of an ultra-low latency edge service.

[0071] Hereinafter, with reference to FIG. 5, the operation method of an edge connection management device (20) according to an embodiment of the present invention will be described.

[0072] First, when the generation unit (21) confirms that the terminal (10) connected to the mobile communication network has subscribed to an edge service, it generates edge routing information to route the edge service traffic of the terminal (10) to an edge service area based on the location information of the terminal (10) (S10-S30).

[0073] Here, edge routing information corresponds to, for example, a URSP (UE Route Selection Policy) which is information regarding a policy transmitted to a terminal (10) to route traffic of a terminal (10) connected to a mobile communication network, and such URSP may include a Network Slice Selection Policy (NSSP) for supporting network slicing technology, an SSC Mode Selection Policy (SSCMSP) for supporting SSC mode, and a DNN Selection Policy for selecting a DNN (Data Network Name) corresponding to an APN (Access Point Name) used in EPC.

[0074] At this time, the generating unit (21) can generate edge routing information to include the connection information of an edge connection server (30) within a specific edge service area closest to the location information of the terminal (10) among the edge service areas that the terminal (10) can access for using edge services.

[0075] Here, the location information of the terminal (10) corresponds to, for example, a Tracking Area (TA), and in order to provide connection information of the edge connection server (30) based on such a TA, in one embodiment of the present invention, the connection information of the edge connection server (30) that matches each TA can be managed in User Data Management (UDM) within the mobile communication network.

[0076] In addition, in one embodiment of the present invention, at least one of the size and number of edge service areas may be defined differently for each pre-set edge service group.

[0077] In this regard, if at least one of the size and number of edge service areas is defined differently for each pre-configured edge service group, the generating unit (21) may generate edge routing information such that for each edge service group, the connection information of the edge connection server (30) within the edge service area closest to the location information of the terminal (10) among the edge service areas that the terminal (10) can connect to includes the connection information of the edge connection server (30).

[0078] Meanwhile, in one embodiment of the present invention, it is necessary to consider cases where location information changes due to the movement of a terminal (10) connected to a mobile communication network.

[0079] To this end, when the location information of a terminal (10) connected to a mobile communication network changes, the generation unit (21) updates the edge routing information generated for the terminal (10) based on the connection information of the edge connection server (30) matched by TA managed in the UDM (User Data Management) within the mobile communication network.

[0080] Here, the edge routing information of the terminal (10) that is updated in this way can be transmitted to an edge client (Edge Enabler Client) installed within the terminal (10) in a push manner, and such edge routing information can be updated not only when the location information of the terminal (10) changes, but also when information related to the edge service or edge service area is updated.

[0081] For reference, the above-described procedure for generating edge routing information for a terminal (10) connected to a mobile communication network according to one embodiment of the present invention corresponds to the procedures ① and ② in FIG. 4 previously exemplified.

[0082] Afterwards, when the providing unit (22) completes the generation of edge routing information for the terminal (10), it provides the generated edge routing information to the terminal (10), thereby enabling the terminal (10) to directly connect to the edge connection server (30) within the edge service area closest to itself according to the edge routing information when using the edge service (S40).

[0083] At this time, the providing unit (22) sends the edge routing information generated for the terminal (10) to the Access and Mobility Function (AMF) through a standard interface (e.g., N15) of the mobile communication network, and the AMF that receives this can transmit the edge routing information to the terminal (10) through a standard interface (e.g., N1) via Non Access Stratum (NAS) signaling with the terminal (10).

[0084] For reference, the procedure for transmitting edge routing information to a terminal (10) according to one embodiment of the present invention corresponds to the procedure of ③ in FIG. 4, which was previously exemplified.

[0085] Meanwhile, in this regard, the terminal (10) can obtain connection information of the edge application server (40) by connecting to the edge connection server (30) in the edge service area closest to itself by referring to the connection information within the edge routing information, and can use the edge service by connecting to the edge application server (40) through this.

[0086] For reference, according to one embodiment of the present invention, the procedure for a terminal (10) to use an edge service corresponds to the procedure ④ to ⑥ in FIG. 4, which was previously exemplified.

[0087] As described above, according to the operation method of the edge access management device (20) according to one embodiment of the present invention, in an edge computing (MEC, Multi-Access Edge Computing) environment, when the subscription to an edge service of a terminal (10) connected to a mobile communication network is confirmed, edge routing information for routing edge service traffic is provided to the terminal (10), thereby allowing the terminal (10) to directly connect to the edge access server (30) in the edge service area closest to itself by referring to the edge routing information when using the edge service, so that the time required for the terminal (10) to actually use the edge service can be significantly reduced, thereby actively supporting the implementation of an ultra-low latency edge service.

[0088] Meanwhile, the operation method of the edge access management device (20) according to one embodiment of the present invention may be implemented in the form of program instructions that can be executed through various computer means and recorded on a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, etc., either individually or in combination. The program instructions recorded on the medium may be those specifically designed and configured for the present invention, or those known and available to those skilled in the art of computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tapes; optical recording media such as CD-ROMs and DVDs; magneto-optical media such as floptical disks; and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, and flash memory. Examples of program instructions include machine code, such as that generated by a compiler, as well as high-level language code that can be executed by a computer using an interpreter, etc. The above-described hardware device may be configured to operate as one or more software modules to perform the operation of the present invention, and vice versa.

[0089] Although the present invention has been described in detail with reference to preferred embodiments, the present invention is not limited to the above-described embodiments, and the technical concept of the present invention extends to the scope in which various modifications or alterations are possible by anyone with ordinary knowledge in the technical field to which the present invention belongs, without departing from the gist of the present invention as claimed in the following claims. Industrial applicability

[0090] According to the edge connection management device and the method of operation of the edge connection management device according to the present invention, since it can support direct connection to the edge service area closest to the terminal when the terminal uses an edge service, it overcomes the limitations of existing technology, and thus, not only is there sufficient possibility for the commercialization or business of the applied device rather than just the use of related technology, but it is also clearly and practically implementable, so it is an invention with industrial applicability. Explanation of the symbols

[0091] 10: Terminal 20: Edge Connection Management Device 21: Generation section 22: Provision section 30: Edge connection server 40: Edge Application Server

Claims

Claim 1 An edge access management device comprising: a generating unit that generates edge routing information for routing edge service traffic of a terminal to an edge service area based on location information of the terminal when the subscription to an edge service of a terminal connected to a mobile communication network is confirmed; and a providing unit that provides the edge routing information to the terminal so that when the terminal uses the edge service, it can directly connect to an edge access server within the edge service area according to the edge routing information, wherein the generating unit updates the edge routing information based on the changed location information whenever the location information of the terminal connected to the mobile communication network changes, and the providing unit provides the updated edge routing information to the terminal in a push manner when the edge routing information is updated. Claim 2 An edge connection management device according to claim 1, wherein the generating unit generates edge routing information such that it includes connection information of an edge connection server within a specific edge service area closest to the location information of the terminal among the edge service areas accessible to the terminal. Claim 3 An edge connection management device according to claim 1, wherein the generating unit generates edge routing information such that, for each edge service group, at least one of the size and number of the edge service areas is defined differently, the edge connection server within a specific edge service area closest to the location information of the terminal among the edge service areas accessible to the terminal is generated to include connection information of the edge connection server within the specific edge service area closest to the location information of the terminal. Claim 4 delete Claim 5 delete Claim 6 An edge access management device according to claim 1, characterized in that the edge routing information is included in a URSP (UE Route Selection Policy), which is information regarding a policy transmitted to a terminal to route traffic of a terminal connected to the mobile communication network. Claim 7 A method of operation of an edge access management device, characterized by comprising: a generation step of generating edge routing information for routing edge service traffic of a terminal to an edge service area based on location information of the terminal when the subscription to an edge service of a terminal connected to a mobile communication network is confirmed; a provision step of providing the edge routing information to the terminal so that when the terminal uses the edge service, it can directly connect to an edge access server within the edge service area according to the edge routing information; an update step of updating the edge routing information based on changed location information whenever the location information of the terminal connected to the mobile communication network changes; and a push provision step of providing the updated edge routing information to the terminal in a push manner when the edge routing information is updated. Claim 8 A method of operation of an edge access management device according to claim 7, wherein the generation step generates edge routing information such that it includes connection information of an edge access server within a specific edge service area closest to the location information of the terminal among the edge service areas accessible to the terminal. Claim 9 A method of operation of an edge access management device according to claim 7, wherein the generation step is characterized by generating edge routing information such that, for each edge service group, at least one of the size and number of edge service areas is defined differently, the edge routing information includes connection information of an edge access server within a specific edge service area closest to the location information of the terminal among the edge service areas accessible to the terminal. Claim 10 delete Claim 11 delete Claim 12 A method of operation of an edge access management device according to claim 7, wherein the edge routing information is included in a URSP (UE Route Selection Policy), which is information regarding a policy transmitted to a terminal to route traffic of a terminal connected to the mobile communication network.

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