KR20220057921A - Radio access network device and control method thereof - Google Patents

Abstract

In the present invention, proposed are a radio access network (RAN) device and an operating method thereof, wherein the RAN device allocates/configures resources pre-occupied between a RAN and a core network when a terminal requests a service in a 5G environment, to realize a technology for enabling immediate response without core network signaling.

Description

A wireless network device and a method of operation of a wireless network device {RADIO ACCESS NETWORK DEVICE AND CONTROL METHOD THEREOF}

The present invention relates to a technique for improving the speed of a service in a 5G environment.

In 5G, a network structure is defined to support a terminal, a base station (access), a core, and a server end-to-end, and a single node (eg S-GW, P-GW, etc.) is complex in existing LTE (4G). By separating the functions of control signaling and data transmission and reception, which were performed as , a network structure is defined in which a control signaling function area (Control Plane) and a data transmission/reception function area (User Plane) are divided.

At this time, in 5G, the control node of the Control Plane (CP) controls AMF (Access and Mobility Management Function) that controls access to the wireless section of the terminal, and PCF that manages/controls policies such as terminal information, subscription service information for each terminal, and billing. (Policy Control Function), SMF (Session Management Function) to control/manage sessions for data service use by terminal, NEF (Network Exposure Function) to share information with external networks, user’s subscriber DB And UDM/AUSF (Unified Data Management / AUthentication Function) to manage/control authentication, NRF (Network Repository Function) to manage/control information on each NF (Network Function) in the network, and to handle subscriber billing It can be defined as CHF (Charging Function).

In 5G, the data node of the User Plane (UP) is a UPF (User Plane Function) that transmits and receives data between the terminal and the server on an external service network (eg the Internet) through a session with the terminal based on the control (interlocking) of the SMF. can be defined

And, in 5G, the control node of the control plane and the data node of the user plane are all referred to as network nodes (Network Function, NF).

As such, in 5G, NFs that perform specific functions are defined, and interworking/connection between NFs is defined based on communication using SBI (Service Based Interface).

In the current standard, communication processing between NFs is configured in the form of Request / Response and Subscription / Notification in the entity method, and the NF is configured in a stateless structure (that is, the context is separated into UDSF and UDM/UDR, etc.).

Accordingly, the implementation of NF is very light and the usability for migration and flexibility is increased, and NF has the advantage of using a 'universal' protocol between NFs by communicating based on SBI (eg HTTP/2).

Meanwhile, in the current vertical industry, that is, B2B business requirements, for a specific premium VIP subscriber (a specific terminal), a super connection/sec access time is required.

However, looking at the current standard, as described above, since each NF is configured in a stateless structure and a 'universal' protocol is used, a large number of Request / Response signaling between NFs inevitably occurs. For structural reasons, it is virtually impossible to satisfy the fast call processing of hyperconnection/secondconnection time required by B2B.

Therefore, in the present invention, for structural reasons of the 5G environment, it is possible to solve the problem of not being able to satisfy the fast call processing of the hyperconnection/second connection time required by B2B, and to improve the speed of call processing and service. I would like to suggest

The present invention was created in consideration of the above circumstances, and the purpose of the present invention is to solve the problem that the fast call processing of the hyperconnection/superconnection time required by B2B cannot be satisfied due to the structural reasons of the 5G environment. It is an object of the present invention to provide a wireless network device and an operating method of the wireless network device, which realize a technology capable of solving the problem and improving the speed of call processing and service.

According to a first aspect of the present invention, there is provided a wireless network device, comprising: a resource occupant for generating and occupying prior resource information with a core network based on information on a specific terminal; and when the service request is received from the terminal, if the terminal is a specific terminal capable of using the dictionary resource information, the service is based on the dictionary resource information for the terminal without transmitting the service request to the core network and a control unit that returns a response to the request.

Specifically, in the process of establishing a session through signaling with the core network in response to a service request of a specific terminal to be used as a target of the prior resource information, the resource occupation unit provides information on the specific terminal to a context. and without radio section signaling with the specific terminal, by connecting a session (Allocated Session) with the core network based on the contextualized information, the allocated session and the context (Context) ) can be generated as the dictionary resource information.

Specifically, when receiving a service request from a terminal, the control unit compares the information of the terminal recognized in the service request and a context in the dictionary resource information, so that the terminal can use the dictionary resource information Whether it is a specific terminal may be determined.

Specifically, the control unit maps a context in the dictionary resource information that matches information of the terminal recognized in the service request with information of the terminal, and allocates the mapped context to the terminal and an Allocated Session may be established in the terminal based on the allocated context.

Specifically, when the control unit establishes an Allocated Session and a response reply to the service request based on the prior resource information for the terminal, the control unit transmits information related to the response reply and session establishment to the core network Accordingly, information on the core network and the session (Allocated Session) can be synchronized based on the transmitted information.

Specifically, when returning the response to the service request, the control unit transmits an identifier indicating that the response is based on an Allocated Session based on the prior resource information to the terminal, and the terminal recognizes the identifier It is possible to avoid position movement through

In order to achieve the above object, a method of operating a wireless network device according to a second aspect of the present invention includes: a resource occupation step of generating and occupying prior resource information with a core network based on information on a specific terminal; and when the service request is received from the terminal, if the terminal is a specific terminal capable of using the dictionary resource information, the service is based on the dictionary resource information for the terminal without transmitting the service request to the core network and a reply reply step of replying a reply to the request.

Specifically, in the resource occupancy step, in the process of establishing a session through signaling with the core network in response to a service request of a specific terminal that is to be used as a target of the prior resource information, information on the specific terminal is provided to a context (Context). ) and connect the session (Allocated Session) with the core network based on the contextualized information without signaling the radio section with the specific terminal, and the Allocated Session and the context ( Context) information can be generated as the dictionary resource information.

Specifically, by mapping a context in the dictionary resource information that matches the information of the terminal recognized in the service request with the information of the terminal, the mapped context is allocated to the terminal, and the allocation The method may further include setting an Allocated Session to the terminal based on one context.

Specifically, when a response response and session (Allocated Session) to the service request are set for the terminal based on the prior resource information, information related to the response response and session establishment is transmitted to the core network, The method may further include synchronizing information on the core network and the session (Allocated Session) based on the information.

Specifically, when replying to the response to the service request, an identifier indicating an Allocated Session-based response set based on the prior resource information is transmitted to the terminal, and the terminal moves through the identifier recognition It may further include a step of enabling avoidance.

According to the wireless network device and the operating method of the device according to the present invention, when a service request of a terminal in a 5G environment, a resource pre-occupied between the RAN and the core network is allocated/set to provide an immediate response without processing delay due to the core network signaling and a new method of call processing technology that enables fast service use.

Accordingly, according to the present invention, for structural reasons of the 5G environment, the problem of not being able to satisfy the fast call processing of the hyper-connection/sec-connection time required by B2B is solved, and the effect of improving the speed of call processing and service is derived can do.

1 is an exemplary diagram showing a 5G architecture.
2 is a conceptual call-flow diagram illustrating a situation in which a large amount of signaling occurs in a 5G environment.
3 is a conceptual call-flow diagram illustrating a situation in which signaling is reduced in the core network through advance resource occupation between the RAN and the core network when the present invention is applied in a 5G environment.
3 is a block diagram showing the configuration of a wireless network device according to an embodiment of the present invention.
4 is a block diagram showing the configuration of a wireless network device according to an embodiment of the present invention.
5 and 6 are exemplary views showing the configuration of information (Session Context Information / Allocated Session Information) defined for realizing the technology of the present invention.
7 is a call-flow diagram illustrating a method of operating a wireless network device according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

The present invention relates to a technique for improving the speed of a service in a 5G environment.

In 5G, a network structure is defined to support a terminal, a base station (access), a core, and a server end-to-end, and a single node (eg S-GW, P-GW, etc.) is complex in existing LTE (4G). By separating the functions of control signaling and data transmission and reception, which were performed as , a network structure is defined in which a control signaling function area (Control Plane) and a data transmission/reception function area (User Plane) are divided.

1 shows the 5G Architecture structure.

As shown in FIG. 1, in 5G, the control node of the Control Plane (CP) controls AMF (Access and Mobility Management Function) for controlling access to the wireless section of the terminal, terminal information, subscription service information for each terminal, and policies such as billing. PCF (Policy Control Function) for managing/controlling data service, SMF (Session Management Function) for controlling/managing sessions for data service use by terminal, and NEF (Network Exposure Function) for information sharing with external networks ), UDM/AUSF (Unified Data Management / AUthentication Function) to manage/control user's subscriber DB and authentication, NRF (Network Repository Function) to manage/control information on each NF (Network Function) in the network , it can be defined as CHF (Charging Function) that handles subscriber's billing.

In 5G, the data node of the User Plane (UP) is a UPF (User Plane Function) that transmits and receives data between the terminal and the server on an external service network (eg the Internet) through a session with the terminal based on the control (interlocking) of the SMF. can be defined

In 5G, both the control node of the control plane and the data node of the user plane are called network functions.

As can be seen from FIG. 1 , in 5G, NFs that perform specific functions are defined, and interworking/connection between NFs is defined based on communication using SBI (Service Based Interface). And, the SBI message transmitted and received based on the SBI between NFs means a data packet including a header of an application layer such as HTTP, HTTP/2, and QUIC.

In the current standard, communication processing between NFs is configured in the form of Request / Response and Subscription / Notification in the entity method, and the NF is configured in a stateless structure (that is, the context is separated into UDSF and UDM/UDR, etc.).

Accordingly, the implementation of NF is very light and the usability for migration and flexibility is increased, and NF has the advantage of using a 'universal' protocol between NFs by communicating based on SBI (eg HTTP/2).

Meanwhile, in the current vertical industry, that is, B2B business requirements, for a specific premium VIP subscriber (a specific terminal), a super connection/sec access time is required.

However, looking at the current standard, as described above, each NF is asked which NF to request the NF service from each NF due to the characteristics of SBA (Service Based Architecture) that configures each NF in a stateless structure and uses a 'universal' protocol. Inevitably, a lot of signaling in the Request / Response method between NFs, such as NF Discovery & Selection, has to be performed.

2 shows a situation in which a large amount of signaling occurs in a 5G environment, as described above.

That is, as can be seen in FIG. 2 , upon receiving a service request from the UE (UE), the RAN (gNB) transfers the service request to the AMF, which is the Core NF, and the AMF performs NF Discovery & Selection and selects the Core NF, such as A number of Request / Response type signaling occurs between NFs, such as delivering the necessary NF service request to AUSF, and AMF again performing NF Discovery & Selection and delivering the necessary NF service request to the selected Core NF, e.g., EIR. Large Delay occurs.

For this reason, according to the current standard, it is virtually impossible to satisfy the fast call processing of the hyperconnection/superconnection time required by B2B because, for structural reasons of the 5G environment, connection delay due to a large amount of signaling cannot be avoided. would.

Therefore, in the present invention, for structural reasons of the 5G environment, it is possible to solve the problem of not being able to satisfy the fast call processing of the hyperconnection/second connection time required by B2B, and to improve the speed of call processing and service. I would like to suggest

First, briefly explaining the core of the present invention, in the present invention, the configuration for pre-occupying resources between the RAN (gNB) and the core network, allocating/setting the pre-occupied resources to the terminal of the service request, This is the key to realizing an immediate responsive configuration.

3 shows a situation in which the signaling processing delay in the core network is reduced when the core realization configuration of the present invention is applied in the 5G environment.

That is, as can be seen in FIG. 3 , upon reception of a service request from a terminal (UE) through a configuration (Pre-Established) that pre-occupies a resource between the RAN (gNB) and the core network, the RAN (gNB) is the Core NF Without forwarding the service request to the AMF, it allocates/sets the resource occupied in advance to the terminal of the service request and immediately responds to the service request. Enables responsiveness and quick service availability.

In this way, the present invention can reduce the delay for call processing including the basic call connection time to an extremely low second, and improve the response operation that takes up to several seconds to the immediate response processing/operation close to ~0 seconds. And it is possible to increase the 5G service quality through the present invention.

Specifically, the present invention intends to propose a wireless network device implementing the proposed technology of the present invention as described above.

4 is a block diagram showing the configuration of a wireless network device according to an embodiment of the present invention.

As can be seen from FIG. 4 , the wireless network device 130 proposed in the present invention is a device configured in a RAN (Radio Access Network), and as an embodiment, in the form of a module in the gNB 100 which is a RAN device. can be configured.

As shown in FIG. 4 , the wireless network device 130 according to an embodiment of the present invention may include a resource occupation unit 110 and a control unit 120 .

That is, the wireless network device 130 according to an embodiment of the present invention can realize the proposed technology of the present invention described above through each of the above-described components.

Hereinafter, each component constituting the wireless network device 130 of the present invention will be described in detail.

The resource occupation unit 110 is responsible for the function of generating and occupying resource information in advance with the core network based on information on a specific terminal in the gNB 100 .

The function of the resource occupation unit 110 is said to correspond to the realization of the configuration of pre-occupying resources between the RAN (gNB) and the core network.

More specifically, the resource occupation unit 110 responds to a service request (eg, authentication/location registration/session creation, etc.) of a specific terminal that is to be used as a target of prior resource information in the gNB 100 , that is, the core network, that is, the Core. During the process of establishing a session through signaling with NFs (eg, AMF, etc.), information necessary to generate/occupy prior resource information can be monitored and stored (caching).

Here, the process of establishing a session through signaling with the core network, that is, core NFs (eg, AMF, etc.) for a service request of a specific terminal, is based on the signaling of the Request / Response method between the NFs as shown in FIG. 2 . It means the session setup in the existing method.

In addition, the specific terminal to be used for the prior resource information means a subscriber terminal that is specified as a target to provide call processing of the hyperconnection/secondconnection time required by B2B, such as a specific premium VIP subscriber.

Accordingly, the resource occupation unit 110 monitors and stores (caching) the service request of a specific terminal in the gNB 100 during the process of establishing a session through signaling with the core network, that is, core NFs (eg, AMF, etc.). ), as if a service request of the specific terminal was actually received, the context creation procedure and the session connection/creation procedure are performed, and as a result, the dictionary resource information can be generated.

In a more specific process, the resource occupation unit 110 during the process of establishing a session through signaling with the core network, that is, Core NFs (eg, AMF, etc.) in response to a service request of a specific terminal in the gNB 100 . , information on a specific monitored terminal is converted into a context and stored (caching).

At this time, the contextualized information for a specific terminal may be configured including SUPI, SNSSAI, DNN, IP Version, Location, Downlink-TEID, and the like.

And, the resource occupation unit 110, even if the service request of the specific terminal is not actually received, that is, without radio section signaling with the specific terminal, the gNB 100 based on the stored (caching) contextualized information. Connects an Allocated Session with the core network.

That is, the resource occupant 110 uses the stored (cached) contextualized information to perform a context creation procedure and a session connection/generation procedure as if a service request of the specific terminal was actually received, and As a result, an Allocated Session and the contextualized information connected by the gNB 100 may be generated as the prior resource information.

The generated prior resource information can be regarded as a dedicated resource between the RAN and the core network that is pre-occupied for call processing and session processing for a specific terminal.

In this way, in the wireless network device 130 of the present invention, the gNB 100 may generate/manage N pieces of pre-resource information (Pre-Established).

For reference, when the wireless network device 130 of the present invention performs the initial NGAP setup procedure between the gNB 100 and the core network, the gNB 100 notifies whether the function of the wireless network device 130 is used. In this process, information on the maximum Allocated Session (eg, the number of target subscribers, the number of sessions (N), etc.) can be set.

In addition, the wireless network device 130 of the present invention (in particular, the resource occupation unit 110) is pre-Established with a core network (eg, AMF, etc.) in the process of connecting an Allocated Session according to the above-mentioned Pre-Established. By delivering an identifier indicating that it is a connected session as a , it enables the core network (eg, AMF, etc.) to distinguish/manage an Allocated Session from a general session.

Accordingly, according to the present invention, in the core network (eg, AMF, etc.), the priority (Priority) is managed higher than that of the general session (Session) for the session (Allocated Session) as a dictionary resource that is distinguished based on the identifier. In such a way, it is also possible to manage so that the connection of the session (Allocated Session) can be maintained.

As described above, in the present invention, a feature configuration of pre-occupying resources between the RAN (gNB) and the core network under the initiative of the RAN (gNB) is realized without terminal signaling such as reception of a service request from an actual terminal. .

5 is a diagram of information defined for realizing the feature configuration of pre-occupying resources between the RAN (gNB) and the core network led by the RAN (gNB) of the present invention, that is, the configuration of the prior resource information (Session Context Information) is showing

As shown in FIG. 5, the prior resource information (Session Context Information) is a session (Allocated Session) connected between the RAN (gNB) and the core network, and the context used when connecting this session (Allocated Session). It may be composed of information about information (terminal information).

According to an example, the dictionary resource information (Session Context Information) is information about contextualized information (terminal information) (hereinafter, Session Context), for each Session Context (ID), SNSSAI, SUPI, PEI, NGAP ID, GUTI, Location, and information on mapped sessions (Allocated Session) can be defined.

And, the dictionary resource information (Session Context Information) is information (hereinafter, Session Context PDU) about a matching session (Allocated Session) for each Session Context (ID), per Session Context PDU (ID), DNN, TEID, 5QI, etc. can be defined.

Meanwhile, FIG. 6 shows a configuration of information (Allocated Session Information) about an Allocated Session based on prior resource information (Session Context Information) as information defined in the present invention.

In addition, in the present invention, between the RAN (gNB) and the core network (eg, AMF), the prior resource information (hereinafter, Session Context Information) and / or session information (Allocated Session Information) generated by the wireless network device 130 is It can be managed in the form of a pool.

When receiving a service request from a terminal, when the terminal is a specific terminal capable of using the dictionary resource information, the control unit 120 provides the advance resource information for the terminal without transmitting the service request to the core network. It is responsible for replying a response to the service request based on the

The function of the control unit 120 corresponds to the realization of a configuration that immediately responds to the service request by allocating/setting the resource pre-occupied between the RAN (gNB) and the core network to the terminal of the service request.

More specifically, when the gNB 100 receives a service request (eg, authentication/location registration/session creation, etc.) from the terminal in the gNB 100, the control unit 120 generates/occupies prior resource information ( It is determined whether it is a specific terminal that can use Session Context Information).

For example, when the gNB 100 receives a service request (eg, authentication/location registration/session creation, etc.) from the terminal in the gNB 100 , the control unit 120 generates/recognizes information on the terminal recognized in the service request received this time and pre-generation/ By comparing the context in the occupied dictionary resource information (Session Context Information), that is, the Session Context, it is possible to determine whether the current terminal is a specific terminal capable of using the dictionary resource information (Session Context Information).

That is, if there is a Session Context that matches or matches the information of the terminal recognized in the service request received this time in the dictionary resource information (Session Context Information), the control unit 120 sets the current terminal to the dictionary resource information (Session Context Information) It can be determined that it is a specific terminal that can use , in particular, a specific terminal of a matching or matching Session Context.

If the control unit 120 determines that the terminal that has made this service request is a specific terminal that can use the prior resource information (Session Context Information), the controller 120 matches or matches the information of the terminal recognized in the service request received this time. (Session Context Information) My Session Context is mapped with the information of the current terminal, and the mapped Session Context is allocated to the current terminal.

As a result, the controller 120 derives the same result as performing a context creation procedure for session connection without signaling with the core network in response to the current service request of the terminal.

Thereafter, the controller 120 sets the previously connected session (Allocated Session) to the current terminal based on the Session Context allocated to the current terminal, so that the terminal uses it for traffic transmission of the service according to the current service request. .

Accordingly, the control unit 120 sets an Allocated Session that has previously been connected/occupied for this service request of the terminal, and performs the same result as performing the session connection/creation procedure without signaling with the core network. derive

Accordingly, the control unit 120, for this service request of the terminal, based on the previously generated / occupied prior resource information (Session Context Information), without signaling with the core network, Session Context allocation and session (Allocated Session) setting By performing , it is possible to immediately reply to a response to this service request (eg, authentication/location registration/session creation, etc.) based on this.

Furthermore, the control unit 120, as described above, while returning a response to the current service request (eg, authentication/location registration/session creation, etc.), the session set based on prior resource information (Session Context Information) (Allocated Session) )-based response is transmitted to the terminal, so that position movement can be avoided through identifier recognition in the terminal.

That is, the wireless network device 130 of the present invention, particularly the control unit 120, informs the terminal that it is an Allocated Session-based response from the gNB 100 to the terminal by transmitting an indicator, and the session through the gNB 100 ( In order to maintain the Allocated Session) connection, the UE may not cause a call processing failure within 5GS by not moving the location for a certain period of time.

As described above, according to the present invention, through a configuration (Pre-Established) that pre-occupies a resource (Session Context Information) between the RAN (gNB) and the core network, when a specific terminal requests a new or reconnected service, The RAN (gNB) can quickly allocate/set the pre-occupied resources to the service request terminal through Pre-Established without transferring the service request to the AMF, which is the Core NF, and immediately respond to the service request.

Furthermore, the wireless network device 130 of the present invention, particularly the control unit 120, sets a resource pre-occupied through Pre-Established as described above, that is, a session (Allocated Session) for a terminal using a service, the session When performing the (Allocated Session) release procedure, information that maps the terminal information and the Session Context is deleted during the process of establishing the corresponding session (Allocated Session), and the corresponding session (Allocated Session) is reassignable as a pre-occupied resource, that is, a pool. can manage

On the other hand, the wireless network device 130 of the present invention, in particular, the control unit 120 , when returning a response to the terminal, includes information on the terminal recognized in the previously received service request and Session Context in the dictionary resource information (Session Context Information) Based on the mapping information, the response content (eg, SUPI, SNSSAI, DNN, IP Version, Uplink TEID) may be converted and returned to correspond to the actual service request.

Furthermore, when the control unit 120 sets a response reply to the current service request and an Allocated Session based on the prior resource information (Session Context Information) for the terminal that actually requested the service as described above in the gNB 100, The response reply and information related to session establishment are transmitted to the core network.

That is, the wireless network device 130 of the present invention, in particular the controller 120, transmits related information to the core network, so that the gNB 100 based on the prior resource information (Session Context Information) without signaling with the core network. It informs the terminal that there is an established session (Allocated Session) and shares information necessary for information synchronization on the corresponding session (Allocated Session) between the gNB 100 and the core network.

Accordingly, the core network (eg, AMF, etc.) that has received the related information may maintain information synchronization with the gNB 100 for the corresponding session (Allocated Session) based on the received information, and such synchronization Through this, it is possible to support various session processing operations to be performed later for the corresponding session (Allocated Session) without any problem.

As described above, according to the present invention, when a terminal requests a service in a 5G environment, it is possible to allocate/set a resource pre-occupied between the RAN and the core network to enable an immediate response and fast service use without processing delay due to core network signaling. A new method of call processing technology has been materialized and realized.

Accordingly, according to the present invention, for structural reasons of the 5G environment, the problem of not being able to satisfy the fast call processing of the hyper-connection/sec-connection time required by B2B is solved, and the effect of improving the speed of call processing and service is derived can do.

Hereinafter, a method of operating a wireless network device according to an embodiment of the present invention will be described with reference to FIG. 7 .

For convenience of description, the wireless network device of the present invention is described as being configured in the form of a module in the gNB 100, and as a subject to which the operating method of the wireless network device of the present invention is performed, the gNB 100 perspective will be explained in

As shown in FIG. 7 , according to the operating method of the wireless network device of the present invention, in the gNB 100, a process of pre-occupying a resource between the RAN (gNB) and the core network, that is, a Pre-Established process must be performed. (S10, S20).

Specifically, according to the operating method of the wireless network device of the present invention, in the gNB 100, the core network responds to a service request (eg, authentication/location registration/session creation, etc.) of a specific terminal to be used in advance resource information. That is, an existing session is established through signaling with Core NFs (eg, AMF, etc.), and in this process, information necessary to generate/occupy prior resource information can be monitored and stored (caching) (S10) .

More specifically, in the gNB 100, during the process of establishing a session through signaling with the core network, that is, core NFs (eg, AMF, etc.) in response to a service request from a specific terminal, Contextualizes information and stores (caching) it.

And, according to the operation method of the wireless network device of the present invention, in the gNB 100, even if the service request of the specific terminal is not actually received, that is, without radio section signaling with the specific terminal, the stored (cached) context (Context) ), the gNB 100 connects an Allocated Session with the core network based on the information (S20).

That is, the gNB 100 uses the stored (cached) contextualized information to perform the context creation procedure and the session connection/generation procedure as if a service request of the specific terminal was actually received, and the result As an Allocated Session and the contextualized information in the gNB 100 as the dictionary resource information, it is possible to generate.

The generated prior resource information can be regarded as a dedicated resource between the RAN and the core network that is pre-occupied for call processing and session processing for a specific terminal.

In this way, according to the operating method of the wireless network device of the present invention, the gNB 100 may generate/manage N pieces of pre-resource information (Pre-Established).

And, in the present invention, between the RAN (gNB 100) and the core network (eg, AMF), prior resource information (hereinafter, Session Context Information) and/or session information (Allocated Session) generated by the wireless network device 130 Information) can be managed in the form of a Pool.

According to the operating method of the wireless network device of the present invention, the gNB 100 performs the Pre-Established process as described above to generate/occupies the pre-resource information (Session Context Information), and requests a service from the terminal ( For example: authentication/location registration/session creation, etc.) upon reception, it is determined whether pre-resource information (Session Context Information) is available (S30).

For example, the gNB 100 compares the information of the terminal recognized in the service request received this time and the context in the dictionary resource information (Session Context Information), that is, the Session Context, and matches or matches the information of the current terminal If there is a corresponding Session Context, it can be determined that this terminal is a specific terminal that can use the dictionary resource information (Session Context Information), in particular, a specific terminal of the matching or matching Session Context.

In this case, the gNB 100 may determine that the prior resource information (Session Context Information) is available (S30 Yes). Of course, in the gNB 100 , even if the current terminal is determined to be a specific terminal capable of using the prior resource information (Session Context Information), if there is no pre-occupied resource that can be allocated, that is, the Session (Allocated Session), the prior resource information (Session Context Information) ) can be determined as not available (S30 No).

According to the operating method of the wireless network device of the present invention, in the gNB 100, if it is determined that the prior resource information (Session Context Information) is not available in step S30 (S30 No), the current service request is processed in the existing manner. It is enough to perform the Context creation procedure and the Session connection/generation procedure through signaling with the core network (S35). In this case, according to the operating method of the wireless network device of the present invention, in the gNB 100 , if the terminal requesting the current service is a specific terminal, the above-described Pre-Established process may be performed in the same manner as necessary.

On the other hand, according to the operating method of the wireless network device of the present invention, in the gNB 100, if it is determined that the prior resource information (Session Context Information) is available in step S30 (S30 Yes), it is recognized in the service request received this time. The session context in the dictionary resource information (Session Context Information) that matches or matches the information of the terminal is mapped with the information of the current terminal (mapping relationship), the mapped Session Context is assigned to the current terminal, and the Session assigned to the current terminal Based on the context, an Allocated Session is set in the current terminal so that the terminal uses it for traffic transmission/progression of the service according to the current service request (S40).

As such, in the gNB 100, for this service request of the terminal, Session Context allocation and session (Allocated Session) without signaling with the core network based on the previously generated/occupied prior resource information (Session Context Information) By performing the setting, a response to the current service request (eg, authentication/location registration/session creation, etc.) can be immediately returned based on this (S40).

At this time, according to the operation method of the wireless network device of the present invention, the gNB 100 responds to the current service request based on the prior resource information (Session Context Information) for the terminal that actually requested the service as described above and the session ( Allocated Session), the response reply and information related to session establishment are transmitted to the core network (S50).

That is, in the gNB 100 , there is an Allocated Session set in the terminal based on the prior resource information (Session Context Information) without signaling with the core network in the gNB 100 by transmitting related information to the core network. to share information necessary for synchronization of information on the corresponding session (Allocated Session) between the gNB 100 and the core network.

Accordingly, the core network (eg, AMF, etc.) that has received the related information may maintain information synchronization with the gNB 100 for the corresponding session (Allocated Session) based on the received information, and such synchronization Through this, it is possible to support various session processing operations to be performed later for the corresponding session (Allocated Session) without any problem.

In addition, according to the operating method of the wireless network device of the present invention, in the gNB 100, as described above, a resource pre-occupied through Pre-Established, that is, a session (Allocated Session) is set for a terminal using a service, a session When performing the (Allocated Session) release procedure, the mapping relationship that maps the terminal information and the Session Context is deleted (removed) during the process of establishing the corresponding session (Allocated Session), and the corresponding session (Allocated Session) can be re-allocated in advance. It can be managed as a resource, that is, a Pool (S60).

As described above, according to the present invention, when a terminal requests a service in a 5G environment, it is possible to allocate/set a resource pre-occupied between the RAN and the core network to enable an immediate response and fast service use without processing delay due to core network signaling. A new method of call processing technology has been materialized and realized.

Accordingly, according to the present invention, for structural reasons of the 5G environment, the problem of not being able to satisfy the fast call processing of the hyper-connection/sec-connection time required by B2B is solved, and the effect of improving the speed of call processing and service is derived can do.

The method of operating a wireless network device according to an embodiment of the present invention may be implemented in the form of program instructions that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the medium may be specially designed and configured for the present invention, or may be known and available to those skilled in the art of computer software. Examples of the computer-readable recording medium include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic such as floppy disks. - includes magneto-optical media, and hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine language codes such as those generated by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to carry out the operations of the present invention, and vice versa.

Although the present invention has been described in detail with reference to preferred embodiments so far, the present invention is not limited to the above-described embodiments, and the technical field to which the present invention belongs without departing from the gist of the present invention as claimed in the claims below It will be said that the technical idea of the present invention extends to a range where various modifications or corrections are possible by anyone having ordinary knowledge in the present invention.

According to the wireless network device and the operating method of the wireless network device according to the present invention, when a terminal service request in a 5G environment, it is possible to allocate/set a resource pre-occupied between the RAN and the core network to provide an immediate response reply without core network signaling In terms of realizing the technology that makes it possible, as it goes beyond the limits of the existing technology, the possibility of marketing or business of the applied device, not just the use of the related technology, is sufficient, as well as the degree to which it can be clearly implemented in reality. It's a potential invention.

100 : RAN
110: resource occupation unit 120: control unit
130: wireless network device

Claims (11)

a resource occupant that generates and occupies prior resource information with the core network based on information on a specific terminal; and
When receiving a service request from a terminal, if the terminal is a specific terminal capable of using the prior resource information, the service request is made to the terminal based on the prior resource information without transmitting the service request to the core network A wireless network device comprising: a control unit for returning a response to. The method of claim 1,
The resource occupancy unit,
In the process of establishing a session through signaling with the core network for a service request of a specific terminal to be used as a target of the prior resource information, information on the specific terminal is made into a context,
By connecting an Allocated Session with the core network based on the contextualized information without signaling the radio section with the specific terminal,
The wireless network device, characterized in that generating the associated session (Allocated Session) and the context (Context) information as the dictionary resource information. 3. The method of claim 2,
The control unit is
When receiving a service request from a terminal, by comparing the information of the terminal recognized in the service request and a context in the dictionary resource information, determining whether the terminal is a specific terminal capable of using the dictionary resource information A wireless network device, characterized in that. 3. The method of claim 2,
The control unit is
By mapping the context in the dictionary resource information that matches the information of the terminal recognized in the service request with the information of the terminal, the mapped context is allocated to the terminal,
A wireless network device, characterized in that, based on the allocated context, an Allocated Session is established in the terminal. 5. The method of claim 4,
The control unit is
When a response reply to the service request and an Allocated Session are established for the terminal based on the prior resource information, information related to the response reply and session establishment is transmitted to the core network,
The wireless network device, characterized in that for synchronizing information on the core network and the session (Allocated Session) based on the transmitted information. The method of claim 1,
The control unit is
When replying to the response to the service request, an identifier indicating an Allocated Session-based response set based on the prior resource information is transmitted to the terminal to avoid location movement through recognition of the identifier in the terminal A wireless network device, characterized in that it enables. a resource occupation step of generating and occupying resource information in advance with the core network based on information on a specific terminal; and
When receiving a service request from a terminal, if the terminal is a specific terminal capable of using the prior resource information, the service request is made to the terminal based on the prior resource information without transmitting the service request to the core network A method of operating a wireless network device, characterized in that it comprises a reply reply step of replying to the reply. 8. The method of claim 7,
The resource occupation step is
In the process of establishing a session through signaling with the core network for a service request of a specific terminal to be used as a target of the prior resource information, information on the specific terminal is made into a context,
By connecting an Allocated Session with the core network based on the contextualized information without signaling the radio section with the specific terminal,
The method of operating a wireless network device, characterized in that generating the associated session (Allocated Session) and the context (Context) information as the dictionary resource information. 9. The method of claim 8,
By mapping the context in the dictionary resource information that matches the information of the terminal recognized in the service request with the information of the terminal, the mapped context is allocated to the terminal,
The method of operating a wireless network device, further comprising the step of setting an Allocated Session to the terminal based on the allocated context. 10. The method of claim 9,
When a response reply to the service request and an Allocated Session are established for the terminal based on the prior resource information, information related to the response reply and session establishment is transmitted to the core network,
The method of operating a wireless network device according to claim 1, further comprising: synchronizing information on the core network and the session (Allocated Session) based on the transmitted information. 8. The method of claim 7,
When replying to the response to the service request, an identifier indicating an Allocated Session-based response set based on the prior resource information is transmitted to the terminal to avoid location movement through recognition of the identifier in the terminal Method of operating a wireless network device, characterized in that it further comprises the step of enabling.

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