KR100633482B1 - Mobile communication system, radio resource management method for the same and medium thereof - Google Patents

Abstract

The present invention relates to a next generation mobile communication system. The mobile communication system of the present invention includes a base station supporting wireless access to a fixed access network to a mobile terminal and a local control server managing local resources of the mobile communication system and performing a connection function with an external network. And the local control server each includes a radio resource management entity (RRM-E), and each radio resource management entity interoperates with each other to exchange radio resource management information. In this way, in the radio resource management entity, the algorithms of the radio resource management interwork with each other to achieve the optimal radio resource management. The radio resource management entity (RRM-E) is included in the management plane that performs hierarchical management, operation preservation, and radio resource management functions of the plan (plane) included in the radio level protocol, and the traffic where the radio access protocol and radio access protocol are located. It is constructed independently of the plane and the control plane.

Radio Resource Entity (RRM-E), Radio Resource Management, Resource Management Unit, Algorithm

Description

MOBILE COMMUNICATION SYSTEM, RADIO RESOURCE MANAGEMENT METHOD FOR THE SAME AND MEDIUM THEREOF}

1 is a schematic structural diagram of a next generation mobile communication system providing a broadband multimedia service according to an embodiment of the present invention.

2 is a diagram showing an interworking relationship between algorithms constituting a radio resource management entity (RRM-E) according to an embodiment of the present invention.

3 is a diagram illustrating an interworking relationship through the exchange of radio resource management information between radio resource management entities (RRM-E) of each subsystem according to an embodiment of the present invention.

4 is a diagram illustrating a reference model of a radio access protocol according to an embodiment of the present invention.

5 is a diagram illustrating a control structure through matching between a radio resource management entity (RRM-E) and a radio access protocol according to an embodiment of the present invention.

6 is a view showing an operation state of the resource management unit (RM) according to an embodiment of the present invention.

The present invention relates to a next generation mobile communication system, and more particularly, to a radio resource management method in a next generation mobile communication system.

The next generation mobile communication system should provide a service platform that facilitates the introduction of new services to the various services provided, and should be able to continuously access the services from the mobile terminal device, interactive real-time voice services such as telephones, and the like. Must be able to provide interactive services such as internet access. In addition, the next generation mobile communication system selects the quality of service (QoS) according to the user's requirements such as service specifications, interactive voice, video, voice messaging, streaming audio and video, fax, e-commerce, and WWW browsing. It must be able to provide and meet a number of conditions, including domestic and international use, ie international roaming.

Moreover, the 4th generation mobile communication system, along with the traditional mobile communication service such as voice or message, has diversified demands for the quality of service of different multimedia users, and the current mobile communication system technology such as widening the traffic due to the increase of information volume. It should be possible to provide a more complex mobile multimedia environment that cannot be accommodated. For this purpose, the wireless transmission mode of the terminal for convergence with various networks and various access networks as well as a new wireless transmission technology for supporting high speed voice and data. Multi-mode support has been an issue.

Accordingly, the problem of efficiently using a large amount of radio resource information through high speed control to provide a high speed and broadband mobile communication multimedia service is also a big issue.

Therefore, the radio resource management function is very important for ensuring the quality of the target service, maintaining the planned effective service area, and providing high system capacity.

In addition, the radio resource management scheme may be frequently changed according to policies such as admission control, load control, power control, handover, resource allocation, packet scheduling, etc., and the definition of an association between multiple algorithms is ambiguous.

In addition, the radio resource management method in the previous generation wireless mobile communication system including the third generation is recognized as a tool-box that is recommended to apply various algorithms to solve the ambiguous problem of the radio resource management method. This is required.

The technical problem to be achieved by the present invention is to clarify the definition of the relationship between algorithms in the next generation mobile communication system, and to emphasize the independence of the radio access protocol of the radio resource management entity to facilitate the expansion of the system or the change of the radio resource management policy. It is to provide a radio resource management control structure and control method.

A mobile communication system according to a feature of the present invention for solving this problem, in a mobile communication system providing a wireless service to a mobile terminal connected to a fixed local access network, the mobile terminal to provide a wireless connection to the fixed access network Supporting base station; And a local control server that manages local resources of the mobile communication system and performs a connection function with an external network, wherein the mobile terminal, the base station, and the local control server each include a radio resource management entity (RRM-E). The radio resource management entities interoperate with each other to exchange radio resource management information, and the RRM-E performs management of layer management, operation preservation, and radio resource management of a plan (plane) included in a radio level protocol. It is included in the plane, characterized in that configured independently of the radio access protocol, the traffic plane and the control plane in which the radio access protocol is located.

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The RRM-E includes an admission control algorithm, a load control algorithm, a power control algorithm, a handover algorithm, a resource allocation algorithm, and a packet scheduling algorithm; And a resource management unit for sharing and controlling resources for the algorithm.

The RRM-E of the wireless terminal functions as a measurement report for radio access, resource management and wireless environment, and the RRM-E of the base station functions as a radio resource management function according to time-sensitive elements, and the RRM of the local control server. -E is a radio resource management function that is insensitive to time.

It may further include an interface for message exchange between the RRM-E of the mobile terminal and the RRM-E of the base station and between the RRM-E of the base station and the RRM-E of the local control server.

The interface between the RRM-E of the mobile terminal and the RRM-E of the base station manages the base station for limited resources allocated to the mobile terminal, and between the RRM-E of the base station and the RRM-E of the local control server. The interface of the resource management for the plurality of base stations and radio resources according to the radio integration of different mobile communication systems.

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The radio access protocol includes an L1 layer serving as a physical layer, an L2 layer serving as a radio access control and a link control function, and an L3 layer serving as a call control, call mobility management and session management function.

Information exchange for resource management between algorithms included in the RRM-E is performed through an interface between the resource management unit and each algorithm, and information exchange for resource management between each layer of the RRM-E and the radio access protocol is performed. It is made through the interface between the resource management unit and each layer.

Interfaces for sharing information exist between the database and the resource management unit, between the database and the radio access protocol, between operations, administration and maintenance (OAM) and the resource management unit, and between the OAM and the radio access protocol.

The resource management unit processes the message according to the primitive, determines and processes according to the execution result of each resource management algorithm, and performs a communication processing function with each radio access protocol layer of the control plane and the traffic plane.

The resource management unit determines the period in which an event occurs for each state of the radio access protocol or periodically requests the current state of each layer and determines the processing load of each layer according to a radio resource management policy. .

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The resource manager may include an idle state for receiving a primitive; A processing state for analyzing the primitive message to distinguish a corresponding mode according to the type of the radio access protocol and the algorithm; And a Criteria state that selects the primitives to be transmitted to the algorithm or the radio access protocol according to a result of an arbitrary algorithm and performs a corresponding function.

The processing state is classified into a detailed mode according to an algorithm to be processed by the resource management unit or a destination of the radio access protocol, and the detailed mode is a detailed state according to whether a channel is active or a call / call of a channel according to a radio resource management policy. The division value of the detailed mode depends on the information received from the L3 layer.

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A radio resource management method according to an embodiment of the present invention is a method for managing radio resources in a mobile communication system including a mobile terminal, a base station, and a local control server, each including a radio resource management entity (RRM-E). Receiving, by the radio resource management entity in an idle state, a predefined primitive and moving to a processing state; b) in the processing state, analyzing the primitive message to identify the corresponding mode and then creating a cue and setting a timer if it is a new primitive; c) if the primitive is a message requested in the processing state, determining whether additional request information is required after processing the message; d) generating a request primitive and maintaining the processing state if additional request information is needed as a result of the determination, and transitioning to a Criteria state with a result value obtained from the request information if the additional request information is not required; And e) in the determination state, selecting a parameter to be transmitted to an algorithm or a radio access protocol with the result obtained from the request information and transitioning to the idle state.

The step e) may further include modifying a database value.

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According to an aspect of the present invention, a recording medium includes a mobile terminal including a radio resource management entity (RRM-E), a base station, and a local control server. A resource management unit which is in an idle state and receives a predefined primitive and moves to a processing state; b) in the processing state, analyzing the primitive message to identify the corresponding mode and then creating a cue and setting a timer if it is a new primitive; c) if the primitive is a message requested in the processing state, determining whether additional request information is required after processing the message; c) a function of generating a request primitive and maintaining the processing state if additional request information is required as a result of the determination, and transitioning to a Criteria state with a result value obtained from the request information if the additional request information is not required; And d) in the determination state, selecting a parameter to be transmitted to an algorithm or a radio access protocol with a result obtained from the request information and transitioning to the idle state.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention. Like parts are designated by like reference numerals throughout the specification.

First, a next generation mobile communication system according to an embodiment of the present invention will be described in detail with reference to FIG. 1.

1 illustrates a schematic structure of a next generation mobile communication system for providing a broadband multimedia service according to an embodiment of the present invention.

As shown in Figure 1, the next generation mobile communication system according to an embodiment of the present invention is a mobile terminal (MT) 100, a base station (BS) 200, a local control server (Local Control) Server, hereinafter referred to as LCS (300).

The mobile terminal 100 receives a wireless service by connecting a user to a fixed local access network, and the base station 200 performs radio frequency (RF) signal processing of radio data supporting radio access to the fixed access network. In addition, the base station 200 is a base station for wireless connection with the mobile terminal 100, and a wireless access protocol is located to perform a function as an access station.

The LCS 300 manages local resources of the communication system and performs a connection function with an external network. In addition, the LCS 300 performs an access protocol function for ensuring mobility between the BSs 200.

On the other hand, in the next generation mobile communication system according to an embodiment of the present invention to efficiently manage a large amount of radio resource information to satisfy the service quality required by the user and to maximize the capacity of the system, as shown in FIG. A Resource Management Entity (RRM-E) 500 should be located in each subsystem.

That is, the RRM-E 500 is distributed in both the MT 100, the BS 200, and the LCS 300 according to the purpose of the radio resource management method for each subsystem (500a, 500b, 500c), BS An RRM-E 500b having an algorithm function of a radio resource management method according to a factor that is sensitive to time is included in the 200, and an insensitive factor to the LCS 300. RRM-E (500c) with the algorithm of the radio resource management method according to the) is located. In addition, the MT 100 requires not only a radio access and resource management related algorithm for accessing the BS 200, but also an appropriate resource management function such as scheduling occurring during the traffic exchange after call connection and a resource information request for the terminal of the base station. Radio resource management RRM-E (500a) is required for the measurement report for the wireless environment.

Here, the LCS 300 includes elements necessary for managing resources of a local mobile communication system as well as for managing radio resources of other access networks, that is, heterogeneous radio access systems.

As described above, the radio resource management method of the next generation mobile communication system according to the present invention is distributed and located according to its purpose.

On the other hand, the definition and evaluation of the radio resource management method of the next generation mobile communication system is very important to ensure the quality of the user service, which is planned, to maintain the effective service area and to provide high system capacity. The radio resource management scheme is composed of various algorithms according to functions.

The form of the algorithm according to an embodiment of the present invention is an admission control (AC) algorithm, a load control (LC) algorithm, a power control (PC) algorithm, hand-over (Hand-over) , HO) algorithm, Resource Allocation (RA) algorithm, Packet Scheduling (PS) algorithm, etc. can be divided into various types. Sharing system resources and interworking with each other and simultaneously related to each other according to the change of wireless environment, algorithms can be implemented in the adaptive function to implement the optimal wireless system.

In addition, the radio resource management RRM-E 500 of each subsystem is not only used for resource management alone, but also interworking between algorithms in the RRM-E and RRM-E of another subsystem. Perform optimal radio resource management through

Meanwhile, the resource sharing and control function for each algorithm is performed by a resource manager (RM) 510.

2 and 3 show the structure of the interworking relationship for each function of the RRM-E, and FIG. 2 shows the configuration diagram of the radio resource management entity (RRM-E) in the form of interlocking gearing, and FIG. It shows the interworking by exchanging radio resource management information between radio resource management entities (RRM-E) of the system.

As shown in FIG. 2, the RRM-Es distributed in all the subsystems of the mobile communication system are composed of various algorithms 511 to 517. These algorithms are divided into independent modules as described above. Rather than functioning, it is linked to each other through sharing of various radio parameters and system resources, and related to each other according to the change of the wireless environment, and is configured in the form of gearing so as to implement the optimal system by implementing the adaptive function.

In addition, as shown in FIG. 3, the mobile communication system shares a large amount of resource information through an interworking interface between the RRM-Es 500a, 500b, and 500c, which is a resource management interface between the respective subsystems MT, BS, and LCS. By deriving the optimal parameters, it performs efficient radio resource management.

In this case, in order to efficiently manage radio resources and exchange information between RRM-Es of respective subsystems, interworking, that is, interfaces 400 and 600, exist through exchange of messages for each RRM-E. Message exchange between the MT, BS, and LCS is required not only for the Measurement Report for the wireless environment but also for the radio resource parameter exchange between the RRM-E of the subsystem, ie RM, periodically or when necessary.

That is, for efficient management of the BS for the limited resources allocated to the MT, a definition (message, etc.) of the interface 400 between the MT and the BS is required, and resource management for a plurality of BSs and heterogeneous systems for next-generation systems For the radio resource management according to the radio integration of the definition of the interface 600 between the BS and the LCS is required.

However, in order for the algorithm to perform its functions in this model, the radio resource management model must be operated independently of the radio layer for the protocol for wireless access, so that more efficient management is possible. Easy to maintain. Therefore, in order to satisfy the service required by the next generation mobile communication system and satisfy the radio resource management policy, an independent protocol model should be constructed.

4 illustrates a reference model of a radio access protocol according to an embodiment of the present invention.

As shown in FIG. 4, the entity for the radio resource management method according to the embodiment of the present invention includes a physical layer (L1) 506 in which the RRM-E 500 of the M-Plane 501 is a radio access protocol. L2 (Link Control Layer, Medium Access Control Layer, etc.) 505, and L3 (Resource Control, Mobility Control, etc.) 504, and C-Plane 502 and T-Plane 503 are configured independently. .

Here, L1 506 corresponds to a physical layer closely related to a radio transmission technology (RTT) of a radio access protocol, and the radio access protocol L2 505 is an access to a wireless physical medium and a radio link. It is responsible for the functions of Wireless Access Control (Medium Access Control) and Link Control (Link Control), which provide call channels and access channels through the control of. In addition, the radio access protocol L3 504 performs functions such as call control, call mobility management, and session management for connection and disconnection of a call.

In addition, in the radio level of the next-generation mobile communication system according to an embodiment of the present invention, the protocol includes a control plane (C-Plane) 502, a traffic plane (T-Plane) 503, and management. It is divided into a management plane (M-Plane) 501.

The C-Plane 502 performs radio access level control, that is, connection establishment, channel-to-channel mapping and radio access signaling, and the T-Plane 503 performs functions related to transmission and reception of data traffic, and M-Plane. 501 performs layer management and operation maintenance (OAM) and radio resource management functions of each plan.

The RRM-E 500 is a part of M-Plane 501 which is an administrator between layers L1, L2, and L3 corresponding to an access / non-access stratum for wireless. It plays a role such as Layer Management or Plane Management.

That is, the information exchange method for resource management is an RRM located in the M-Plane 501, rather than vertical and hierarchical reporting between access stratum layers in order to rapidly manage dynamically changing resources according to communication quality. This is achieved through an interface between the E 500 and each of the layers.

Functions between the layers of the RRM-E 500 and the C Plane 502 are described as follows. The RRM-E 500 performs a function of designing a wireless channel with respect to the relationship with the L1 506, adjusting a transmission power, predicting an average received signal size, and the like with the relationship with the L2 505. Modify the scheduler strategy for the packet scheduling algorithm according to the wireless environment and quality of service (QoS) renegotiation, change of priority, or load, and exchange of information and random access of the status of the current packet scheduler It performs functions such as exchanging required parameter in). In addition, the RRM-E 500 may control admission control, load control, handover, and dynamic resource allocation for new calls in relation to the L3 504. And perform control or call procedures.

As such, the M-Plane 501 performs its function as part of the manager for each layer and each protocol plane, and the RRM-E 500 shares system resources and radio parameters so that each user is required to It guarantees the quality of service and helps the system to be implemented such that the mobile terminal and the base station transceiver are planned to provide an optimal communication environment.

Therefore, other algorithms function as part of the RRM-E 500 to dynamically interoperate with the RM 510 for sharing of other algorithms and system resources or radio parameters.

In addition, the RRM-E 500 in the radio resource management method according to an embodiment of the present invention forms a distributed form in each subsystem for each function for the entire system, and RRM- having similar or different functions for each subsystem. E is present. In addition, the location selection for each function can be added and modified according to the characteristics of each algorithm and the radio resource management strategy, and the relationship between them should be considered well in the future addition of the algorithm. In addition, the function of the Global Resource Manager (GRM) is required for heterogeneous radio resource management required for integration between heterogeneous radio access systems in the next generation mobile communication system, and GRM performs resource management for multiple LCSs and BSs. do.

The design model of the radio resource management method guarantees the scalability by changing the database (DB) without modifying the radio access protocol or algorithm when the capacity of other systems such as the base station is required in the mobile communication system. When a change is required for an algorithm, that is, a resource management policy, it should be easy to access the modification by modular independence that does not affect other algorithms, and defined to ensure convenience for frequent modifications such as parameters. Should be.

Hereinafter, a control structure between algorithms in each RRM-E and a radio access protocol and a control structure between RRM-Es will be described in detail with reference to the accompanying drawings based on the radio resource management model.

 First, resource management algorithms operate independently of each other, but have a close relationship with each other. At this time, the resource management unit RM connects the algorithms, schedules the algorithms, and connects the interface with the radio access protocol.

5 illustrates an interface between the RRM-E 500 and the protocols 511 to 516 and a control structure through the same.

This is a structure suitable for a subsystem close to the radio access layer, which is such a control structure in the MT 100 and BS 200 where the protocol layers corresponding to the access stratum for the radio exist.

Since only the protocol layer corresponding to the non-access stratum for the radio exists in the LCS 300, only the RRM-E 500 and the L3 503 protocols are related.

In addition, there are interfaces (801, 802, 701, 702) for sharing information between Operations, Administration and Maintenance (OAM) 800 and database (DB) 700 to cope with the management of system operation. Share processing information. Operational Maintenance (OAM) is a group of network management functions that provides network fault indication, performance information, and data and diagnostics.

In addition, in the radio resource management method according to an embodiment of the present invention, substantial radio resource management is performed through the RRM-E 500. As shown in FIG. 5, resource management algorithms, control and traffic plans, and other sub-resources are managed. Resource management unit (RM) 510 is very important for matching between systems.

Radio resource management methods and control methods through the RM 510 commonly used in the RRM-E 500 are as follows.

The radio resource management method can easily grasp the meaning of the resource management method in the control structure of the RRM-E 500. In other words, the algorithm for performing radio resource management operates in a gearing structure, which means the interworking which has a close correlation with each other. There is no direct interface between algorithms, but an interface for exchanging information through the RM 510 exists.

For example, if considerations for load control arise that require AC algorithm 513 for admission control, then LC algorithm 514 may request the necessary parameters. Information exchange means is made through the interface between the RM (510). This eliminates the clutter of past resource management approaches to algorithmic interrelationships, and impacts each other when future expansion of systems, individual modifications of algorithms, or overall comprehensive policy changes to radio resource management is required. This makes it easy to make changes independently and without affecting them.

It also provides independence for all functions, eliminating the disordered association and intricate matching between each algorithm and the radio access protocols L1 506, L2 505, and L3 504 for tight matching between protocols for radio access. The functionality of the RM 510 is very important to provide a way to enable high speed handshaking.

For example, if the radio resource management policy is performed after the radio resource management is performed through the control of the L1 506 of the L3 504 or the L2 505, the L1 506 and the direct L1 506 through the RRM-E 500 may be used. There may be more overhead than implementing the radio resource management policy through the interface. That is, in the radio resource management method according to an embodiment of the present invention, the control structure of the RRM-E 500 reduces the overhead of information exchange and directly controls the L3 504, L2 505, and L1 506 protocols. Through a large amount of resource management information can be performed at high speed in accordance with the management policy, it can operate according to its function to facilitate the connection with the algorithm as needed.

Accordingly, in order to implement an efficient control method of the RRM-E, the RM 510 has a message processing function according to primitives for adjacent modules, a determination and processing function based on the execution result of each resource management algorithm, and a control and traffic plan. The communication processing function with each radio access protocol layer shall be provided.

The RM 510 may request the current state of each layer at the time of occurrence of an event for the state of each layer or periodically for the radio access protocols L1 506, L2 505, and L3 504. The load can be determined to determine the period.

For example, as load increases, more information may be required for agile processing, while longer periods may be required to reduce the load associated with information demand. At this time, the period is determined according to the policy of each algorithm.

In addition, the RM 510 transitions to various modes according to the processing order in order to objectively design the control method by clarifying the distinction of states.

6 shows a state transition of the RM 501.

As shown in FIG. 6, the state transition of the RM 510 is initially in an idle state to receive primitives, and a defined primitive must be received in order to transition to a processing state.

In the processing state, there are three modes, PROC_PROTOCOL, PROC_ALGORITHM, and PROC_RESERVED mode (MODE), depending on the destination that the RM 510 processes, such as an algorithm or a radio access protocol.

For example, there are 10 detailed operation modes including PROC_PROT_L1, PROC_PROT_L2, PROC_PROT_L3, PROC_ALGO_RA, PROC_ALGO_AC, PROC_ALGO_LC, PROC_ALGO_HO, PROC_ALGO_PS, PROC_ALGO_PC, and PROC_RESERVED.

In addition, each detailed mode of the processing state can be divided into detailed states according to whether the channel is active or calling and receiving a call, which is determined according to a radio resource management policy, and the divided values of these detailed modes are information received from the L3 504. Depends on

The Criteria state indicates a state of comparing and determining the result values obtained for transmission to the required counterpart module for the result of an arbitrary algorithm.After determining, the state is idle after transmitting a primitive, which is a message required as a final destination. You will be returned to.

The order of this state transition is as follows.

First, the RM 510 which is in an idle state receives a defined primitive and enters a processing state (S610).

In the processing state, it identifies the mode corresponding to the message, and if it is a new primitive, it creates a queue and sets a timer. If the requested message is received in a processing state other than a new primitive, the received message is processed.

Thereafter, if another request information is required, the request primitive is generated again (S620), and the processing state remains in the processing state (S630). If no further request information is required, the process proceeds to the decision state with the result value obtained from the request information (S640). .

The determination state performs a function by selecting primitives to be transmitted to an algorithm or a radio access protocol with the result obtained when the transition from the processing state occurs. In addition, when the result value is requested additionally, the timer can be waited for processing after setting the timer, and if necessary, the DB value is modified (S650). The determination state does not remain in the determination state again, and consequently transitions to the idle state (S660).

Although the preferred embodiment of the present invention has been described in detail above, the present invention is not limited thereto, and various other changes and modifications are possible.

As described above, according to the present invention, the algorithms of the radio resource management in the radio resource management entity (RRM-E) are optimized through interworking with each other and the radio resource management information exchange between the radio resource management entities of each subsystem. Wireless resource management can be achieved.

Claims (17)

A mobile communication system for providing a wireless service to a mobile terminal accessing a fixed local access network, A base station supporting a wireless access to the fixed access network to the mobile terminal; And Local control server that manages the local resources of the mobile communication system and performs the connection function with the external network Including; The mobile terminal, the base station and the local control server each includes a radio resource management entity (RRM-E), each radio resource management entity interworking with each other to exchange radio resource management information, the RRM-E is a radio level It is included in the management plane that performs layer management, operation preservation, and radio resource management functions of the plan (plane) included in the protocol, and is configured independently of the radio access protocol, the traffic plane in which the radio access protocol is located, and the control plane. Mobile communication system. The method of claim 1, wherein the RRM-E, Admission control algorithms, load control algorithms, power control algorithms, handover algorithms, resource allocation algorithms and packet scheduling algorithms; And Resource management unit for resource sharing and control function for the algorithm Mobile communication system comprising a. The method of claim 1, The RRM-E of the radio terminal functions as a measurement report for radio access, resource management and radio environment. RRM-E of the base station is a radio resource management function according to time-sensitive elements, The RRM-E of the local control server is a mobile communication system, characterized in that the radio resource management function according to the time insensitive element. The method according to claim 1 or 3, And an interface for message exchange between the RRM-E of the mobile terminal and the RRM-E of the base station and between the RRM-E of the base station and the RRM-E of the local control server. The method according to claim 1 or 3, The interface between the RRM-E of the mobile terminal and the RRM-E of the base station manages the base station for the limited resources allocated to the mobile terminal, An interface between the RRM-E of the base station and the RRM-E of the local control server manages radio resources according to resource management for the plurality of base stations and radio integration of different mobile communication systems. . delete The method of claim 1, The radio access protocol includes a L1 layer which is a physical layer, an L2 layer that performs radio access control and link control, and an L3 layer that performs call control, call mobility management, and session management. The method according to claim 2 or 7, Information exchange for resource management between algorithms included in the RRM-E is performed through an interface between the resource management unit and each algorithm. Mobile communication system, characterized in that the information exchange for resource management between the layers of the RRM-E and the radio access protocol is made through the interface between the resource management unit and each layer. The method according to claim 1 or 2, An interface for sharing information exists between a database and the resource management unit, between the database and the radio access protocol, between an operation, administration and maintenance (OAM) and the resource management unit, and between the OAM and the radio access protocol. Mobile communication system. The method according to claim 1 or 2, The resource management unit processes a message according to a primitive, determines and processes according to the result of performing each resource management algorithm, and performs a communication processing function between each radio access protocol layer of the control plane and the traffic plane. Mobile communication system. The method according to any one of claims 1, 2 or 7, The resource management unit requests the current state of each layer periodically or periodically when an event occurs for the state of each layer of the radio access protocol, and determines a cycle by judging the processing load of each layer by classifying according to a radio resource management policy. Mobile communication system, characterized in that. The method of claim 1 or 2, wherein the resource management unit, An algorithm or radio depending on an idle state for receiving primitives, a processing state for analyzing the primitive message to distinguish the mode according to the type of the radio access protocol and the algorithm, and the result of any algorithm. And selecting the primitive to be transmitted through an access protocol and operating in one of a state of performing a corresponding function. The method of claim 12, The processing state is divided into detailed modes according to an algorithm to be processed by the resource management unit or a destination of the radio access protocol. The detailed mode is classified into detailed states according to whether the channel is active or a call / call of a call according to a radio resource management policy. The method of claim 13, The division value of the detailed mode is dependent on the information received from the L3 layer. A method of managing radio resources in a mobile communication system including a mobile terminal, a base station, and a local control server, each of which includes a radio resource management entity (RRM-E), a) receiving, by the radio resource management entity in an idle state, a predefined primitive and moving to a processing state; b) in the processing state, analyzing the primitive message to identify the corresponding mode and then creating a cue and setting a timer if it is a new primitive; c) if the primitive is a message requested in the processing state, determining whether additional request information is required after processing the message; d) generating a request primitive and maintaining the processing state if additional request information is needed as a result of the determination, and transitioning to a Criteria state with a result value obtained from the request information if the additional request information is not required; And e) in the judgment state, selecting a parameter to be transmitted to an algorithm or radio access protocol with the result obtained from the request information and transitioning to the idle state Radio resource management method of a mobile communication system comprising a. The method of claim 15, The step e) further comprises the step of modifying the database (DB) value radio resource management method of a mobile communication system. A method of managing radio resources in a mobile communication system including a mobile terminal, a base station, and a local control server, each of which includes a radio resource management entity (RRM-E), a) a function of the resource management unit which is in an idle state, receiving a predefined primitive and moving to a processing state; b) in the processing state, analyzing the primitive message to identify the corresponding mode and then creating a cue and setting a timer if it is a new primitive; c) if the primitive is a message requested in the processing state, a function of determining whether additional request information is required after processing the message; c) a function of generating a request primitive and maintaining the processing state if additional request information is required as a result of the determination, and transitioning to a Criteria state with a result value obtained from the request information if the additional request information is not required; And d) in the judgment state, with a result value obtained from the request information, selecting a parameter to be transmitted to an algorithm or radio access protocol and transitioning to the idle state Record medium that stores the program to implement.

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