KR101537014B1 - System and method for managing resource in communication system - Google Patents

System and method for managing resource in communication system Download PDF

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KR101537014B1
KR101537014B1 KR1020110088742A KR20110088742A KR101537014B1 KR 101537014 B1 KR101537014 B1 KR 101537014B1 KR 1020110088742 A KR1020110088742 A KR 1020110088742A KR 20110088742 A KR20110088742 A KR 20110088742A KR 101537014 B1 KR101537014 B1 KR 101537014B1
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South Korea
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coexistence
information
coexistence manager
systems
state
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KR1020110088742A
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Korean (ko)
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KR20120023575A (en
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강현덕
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한국전자통신연구원
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Priority to KR1020100086375 priority
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Priority claimed from PCT/KR2011/006524 external-priority patent/WO2012030190A2/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14Spectrum sharing arrangements between different networks

Abstract

The present invention relates to a resource management system and method for managing a plurality of frequency resources to be shared in a communication system including a plurality of systems that do not have usage rights for a first frequency band, The interface between objects in the usable frequency band is defined for coexistence and frequency sharing of the plurality of systems in the usable frequency band, Wherein the plurality of systems transmit and receive information of the plurality of systems through transmission and reception of messages between the plurality of systems and transmit and receive information between the plurality of systems, Frequency band is used.

Description

[0001] The present invention relates to a resource management system and method in a communication system,

The present invention relates to a communication system, and more particularly, to a resource management system and method for managing a plurality of frequency resources to be shared in a communication system.

BACKGROUND ART [0002] In the current communication system, active research is being conducted to provide various quality of service (QoS) services having a high transmission rate to users. In such a communication system, studies are actively conducted to provide a large-capacity service having a variety of QoS using limited resources such as frequency resources. Particularly, due to the development of radio communication technology and the emergence of new wireless communication services, there is a need to use finite frequency resources more efficiently.

In order to increase the utilization efficiency of the limited frequency resources in the communication system, it is desirable to optimize the performance of the communication system, for example, to maximize the spectrum efficiency through multiple access, coding, modulation, information compression, In addition, a frequency sharing scheme has been proposed to increase the use efficiency of frequency resources by using available frequency bands in a frequency band already in use, such as a TV band.

Here, the frequency sharing in a frequency band that can be used in a frequency band that is already in use, such as the above-described TV band, is a frequency that can be used without interfering with a primary license having incumbent usage right for the TV band It is important to detect the usable frequency band by checking whether the frequency band of the first licensee is used in the TV band. In addition, when there are a plurality of different systems to use the usable frequency band detected in the TV band, due to the difference in the communication system between the plurality of different systems, for example, the radio access system, There is a problem in coexistence to use the band.

In other words, in the present communication system, when there are a plurality of different systems to use the usable frequency band detected in the TV band as described above, the plurality of different systems can efficiently detect the usable frequency band There is no specific resource management scheme for using the frequency resources, and in particular, there is no way to efficiently use frequency resources by coexisting systems of different communication systems to use the available frequency band.

Therefore, after a usable frequency band is detected in a frequency band already in use, such as a TV band in a communication system, a plurality of different systems, for example, systems of different communication systems coexist and the detected usable frequency band is efficiently There is a need for a resource management plan for use as a resource.

It is therefore an object of the present invention to provide a resource management system and method in a communication system.

It is another object of the present invention to provide a resource management system and method for efficiently using a plurality of systems coexistence frequency bands available in a frequency band already used in a communication system.

It is another object of the present invention to provide a system and method for managing frequency resources by using a frequency band that can coexist through transmission and reception of signals according to an interface for sharing and frequency sharing of a plurality of systems in a communication system, Method.

According to an aspect of the present invention, there is provided a resource management system in a communication system including a plurality of systems that do not have usage rights for a first frequency band, A coexistence manager (CM) for managing the plurality of systems for coexistence and frequency sharing of the plurality of systems in the usable frequency band when a usable frequency band is found; A coexistence enabler (CE) for transmitting and receiving the information of the plurality of systems and information of the coexistence manager; And a Coexistence Discovery and Information Server (CDIS) supporting control of the coexistence manager for the plurality of systems; Wherein the information of the plurality of systems is stored between the coexistence manager, the coexistence enabler, and the coexistence discovery and information server according to an interface defined between the coexistence manager, the coexistence enabler and the coexistence discovery and information server. Transmitted and received; The plurality of systems use the available frequency band by coexistence and frequency sharing by transmitting and receiving information according to the interface.

According to another aspect of the present invention, there is provided a method for managing resources of a first frequency band in a communication system including a plurality of systems having no usage right for a first frequency band, Defining an interface between objects in the usable frequency band for coexistence and frequency sharing of the plurality of systems in the usable frequency band when a frequency band in which the plurality of systems are available in the frequency band is detected; Transmitting and receiving information of the plurality of systems through the transmission and reception of messages between the objects according to the interface; And using the usable frequency band by sharing and frequency-sharing the plurality of systems in the usable frequency band by transmitting and receiving information of the plurality of systems.

The present invention relates to a communication system in which an interface for coexistence and frequency sharing of a plurality of systems is defined and a signal is transmitted or received according to the defined interface so that the plurality of systems can communicate with each other through coexistence and frequency sharing, The frequency resources are managed so as to use available frequency bands in the frequency bands that are already in use, and thus the use efficiency of the frequency resources can be improved by more efficiently using the limited frequency resources.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a diagram schematically illustrating the structure of a resource management system in a communication system according to an embodiment of the present invention; Fig.
FIGS. 2 to 4 are diagrams for explaining CM and CE interface definitions of a resource management system in a communication system according to an embodiment of the present invention; FIG.
FIG. 5 through FIG. 7 illustrate definitions of interfaces between a CM and a CDIS in a resource management system in a communication system according to an embodiment of the present invention;
FIG. 8 to FIG. 12 are diagrams for explaining the interface definition between CMs of the resource management system in the communication system according to the embodiment of the present invention; FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, only parts necessary for understanding the operation according to the present invention will be described, and the description of other parts will be omitted so as not to disturb the gist of the present invention.

The present invention can be applied to a frequency band that is already in use, such as in a communication system, such as a cognitive radio (CR) system, an IEEE 802.19 based system, or an IEEE 802.22 based system, The present invention proposes a resource management system and method for efficiently detecting and using a usable frequency band. Although the CR system and the IEEE 802.19 and IEEE 802.22 based systems are described as an example in the embodiment of the present invention, the resource management scheme proposed in the present invention can be applied to other communication systems.

In an embodiment of the present invention, an interface for coexistence and frequency sharing of a plurality of different systems in a communication system is defined. By transmitting and receiving signals according to the defined interface, the plurality of systems coexist And frequency sharing to efficiently use frequency bands available in the TV band. Herein, in the embodiment of the present invention, an interface between each object of the resource management system for sharing a frequency band usable in the communication system is defined, and according to the interface defined above, each object of the resource management system By transmitting and receiving signals, a plurality of different systems, in particular systems of different communication methods, for example, radio access systems, coexist and share a usable frequency band in a frequency band already in use, such as in the TV band, Thereby improving the use efficiency of frequency resources.

That is, in the embodiment of the present invention, a resource management system interface for coexistence and frequency sharing among a plurality of different systems in a communication system is proposed, and the use of limited frequency resources Improves efficiency. Herein, in the embodiment of the present invention, a frequency in a usable frequency band is shared in a frequency band that is already in use, such as a TV band, and a primary license having an exclusive use right for the TV band Since it is necessary to use the usable frequency band without interference, it is possible to detect a usable frequency band by checking whether the frequency band of the first licensee is used in the TV band, and to use the usable frequency band detected in the TV band A plurality of different systems using the detected usable frequency band through coexistence and frequency sharing. Hereinafter, the resource management system in the communication system according to the embodiment of the present invention will be described in more detail with reference to FIG.

1 is a diagram schematically illustrating a structure of a resource management system in a communication system according to an embodiment of the present invention.

Referring to FIG. 1, when a plurality of systems having different usable frequency bands are used by a plurality of systems, such as a TV band, The shared devices 140 and 160 may be configured to improve the frequency sharing efficiency between the shared devices that use the usable frequency band, for example, the shared device 1 140 and the shared device 2 160 and the shared devices 140 and 160, The CM1 120 and the CM2 130 and the shared devices 140 and 160 to manage the shared devices 140 and 160. The coexistence manager (CM) A coexistence enabler (CE) 140, such as CE1 140 and CE2 170, which serves as a path between the CMs 120 and 130, And a server supporting the control of the shared devices 140 and 160 of the CMs 120 and 130, for example, Coexistence Discovery and Information Server (CDIS).

As described above, the shared devices 140 and 160 may be configured so that a primary licensee (hereinafter referred to as a " Primary System "), (Hereinafter, referred to as a " secondary system ") having no preferential use right for the TV band can use a predetermined frequency band in the TV band, Means a plurality of different systems to be detected and used in a frequency band, i.e., sub-systems devices. The shared devices 140 and 160 share and use the predetermined frequency band through coexistence and frequency sharing in order to use limited frequency resources more efficiently.

The CEs 150 and 160 are respectively included in the shared devices 140 and 160 to transmit and receive information on the shared devices 140 and 160 and information on the CMs 120 and 130 as described above. Although the CEs 150 and 160 are included in the shared devices 140 and 160 in the embodiment of the present invention, the CEs 150 and 160 may exist as independent objects, And may be included in the CMs 120 and 130.

Also, the CEs 150 and 160 may transmit context information related to the corresponding shared devices 140 and 160 requested by the CMs 120 and 130, for example, a wireless connection scheme, a transmission power, a spectrum sensing threshold Value, and location, from the shared devices 140 and 160, and transmits the extracted information to the CMs 120 and 130. That is, the CEs 150 and 160 acquire communication-related information of each system as context information for different subsystems, and transmit the information to the CMs 120 and 130.

The CEs 150 and 160 request a request of the CMs 120 and 130 for managing the shared devices 140 and 160, for example, the context information and the configuration of the shared devices 140 and 160 And updates the context information of the shared devices 140 and 160 according to the request and reconfigures or reconfigures the configuration of the shared devices 140 and 160. In other words, the CEs 150 and 160 receive the changed information of the context information, that is, the event information of the shared devices 140 and 160, in response to the request for the context information of the shared devices 140 and 160, The context information of the shared devices 140 and 160 is updated. In addition, the CEs 150 and 160 may receive a component reset of the shared devices 140 and 160 in response to a configuration of the shared devices 140 and 160, ≪ / RTI > is reconfigured, i. E., Reconstructed.

The CMs 120 and 130 determine an operation frequency allocation, a transmission power allocation, and a transmission time allocation in order to improve frequency sharing efficiency between the shared devices 140 and 160. In other words, the CMs 120 and 130 may use the shared devices 140 and 160 in the usable frequency band to improve the frequency sharing efficiency between the shared devices 140 and 160 for the usable frequency bands in the TV band, ), Transmission power allocation, and transmission time allocation.

In order to further improve the frequency sharing efficiency between the shared devices 140 and 160, the CMs 120 and 130 transmit and receive information to / from CMs of shared devices not corresponding to the CMs 120 and 130, for example, And allocates an operation frequency, a transmission power, and a transmission time of the corresponding shared device in the usable frequency band. At this time, the CMs 120 and 130 directly receive and acquire context information and event information of the shared devices not corresponding to the CMs 120 and 130 with other CMs, or transmit / receive the CMs to other CMs through the CDIS 110. In addition, the CMs 120 and 130 obtain information on spectrum use in the main system through an external database, or request the other CMs to reset the components of the corresponding shared devices.

The CDIS 110 supports control operations of the CMs 120 and 130 for frequency sharing of the shared devices 140 and 160 with respect to frequency bands available in the TV band, as described above. That is, the CDIS 110 receives and stores the context information and the event information of the shared devices 140 and 160 from the CMs 120 and 130, and upon receiving a request from the CMs 120 and 130, (140, 160) to the CMs (120, 130). In addition, the CDIS 110 acquires and stores information on spectrum use in the main system through an external database.

The resource management system in the communication system according to the embodiment of the present invention can use the frequency band that can be used in the frequency band already used in the main system, such as the TV band, Includes the CDIS 110, the CMs 120 and 130, and the CEs 140 and 160 for coexistence and frequency sharing. As described above, the shared devices 140 and 160 are subsystem devices for sharing and using the usable frequency band. The shared devices 140 and 160 include a base station (BS), an access point An access point (AP), a service access point (SAP), a terminal, and the like. In addition, the sub systems may be a plurality of systems different from each other in sharing available frequency bands as described above, and may be systems of different communication systems, such as an IEEE 802.19-based system and an IEEE 802.22-based system .

In addition, in the communication system according to the embodiment of the present invention, for the coexistence and frequency sharing of the shared devices 140 and 160 with respect to the usable frequency band in the frequency band already in use, A reference model is defined to be shared by a plurality of systems. In particular, a reference model is defined for each CDIS 110, the CMs 120 and 130, and the CEs 140 and 160 for coexistence and frequency sharing of different systems. . In addition, as described above, the resource management system is configured to allow the CMs 120 and 130 and the CMs 120 and 130 to share and use the shared devices 140 and 160 for coexistence and frequency sharing, The interfaces for the CEs 140 and 160 are defined.

The interfaces between the objects defined by the resource management system in the communication system according to the embodiment of the present invention, i.e., the CDIS 110, the CMs 120 and 130, and the CEs 140 and 160, Interfaces between the CMs 120 and 130 and the CEs 140 and 160, interfaces between the CMs 120 and 130 and the CDIS 110, and interfaces between the CMs 120 and 130, respectively. The interface between the CMs 120 and 130 includes a CM that manages the shared devices of the plurality of systems because each of the plurality of systems having different usable frequency bands shares and uses the interfaces. The resource management system defines interfaces between a plurality of CMs corresponding to the plurality of systems. In particular, there is a master CM in which a certain CM controls the remaining CMs in the plurality of the plurality of CMs, and a slave CM controlled by the master CM, Defines the interface between CM and slave CM. Further, the resource management system defines an interface between an arbitrary CM in the plurality of CMs and an adjacent CM adjacent to the arbitrary CM.

In addition, the resource management system may include a CDIS 110, a CM 120, and a CM 130 to define interfaces between the CDIS 110, the CMs 120 and 130, and the CEs 140 and 160, And a state machine of the CEs 140 and 160. In the state machine thus defined, an interface is defined by transmitting and receiving messages between the CDIS 110, the CMs 120 and 130, and the CEs 140 and 160. Here, the state in the state machine of the CDIS 110, the CMs 120 and 130, and the CEs 140 and 160 may be inactive, active, waiting, engaged, request sent, and request received.

The inactive means a state before the initialization process of each of the objects as a state in which the interface setup with other objects is impossible and the active means a state ready for setting up an interface with another object it means. In addition, the weighting means a state of waiting for a response of the request from the counterpart object after requesting an interface setup to the counterpart object, and the interface setting up with the counterpart object is completed, And a message transmission / reception state. Further, the request transmission means a state of waiting for a response of the transmitted message from the counterpart object after transmitting a message including the request item to the counterpart object, , And processes the request of the counterpart object after receiving the message including the counterpart object. Hereinafter, the definition of the interface between the CM and CE in the resource management system in the communication system according to the embodiment of the present invention will be described in more detail with reference to FIG. 2 to FIG.

FIGS. 2 to 4 are views for explaining the CM and CE interface definition of the resource management system in the communication system according to the embodiment of the present invention. FIG. 2 is a diagram schematically illustrating a state diagram of the CM in the CM and CE interface definition of the resource management system. FIG. 3 is a schematic diagram illustrating a CM and CE interface definition And FIG. 4 is a view schematically showing a procedure of message transmission / reception between the CM and the CE for defining the interface between the CM and the CE in the resource management system.

2, in the CM and CE interface definition of the resource management system, the CM is activated in an inactive state 202 through an initialization 224, (204). The CM is then transitioned from the active state 204 to the inactive state 202 via a shutdown 222.

In addition, when the CM receives a connection request from the CE in the active state 204, the CM transmits a connection response to the CE in response to the connection request (receive connection request and send connection response) 216 and an engaged state (200).

The CM transmits context information (CI) / event information (EV) / reconfiguration (RC) reconfiguration (CI / EV / EV) of the shared device to the CE in the occupancy state (200) Event response / reconfiguration response (CI / EV / RC request) 218 in response to the request transmission, response is received from the CE (receive CI / EV / RC response) (220), it is switched to the engaged state (200). Here, the CM transmits the reconfiguration request to the CE according to a coexistence decision of the CM in the occupancy state (200), switches to the request transmission state (206) Upon receipt of a reconfiguration response response from the CE 220, it is switched to the occupancy state 200.

If the specific event pre-designated by the CM is generated in the CE even though there is no request from the CM in the occupancy state 200, the CM receives an EV response corresponding to the generated event (Receive EV response) (212) from the CE. In addition, the CM periodically receives a being-engagement request (210) from the CE in the occupancy state (200), and the occupancy state (200) Lt; / RTI >

In addition, the CM may receive a disconnection request from the CE in the browse state 200 or periodically receive a be-engagement request from the CE in the browse state 200 (214), the connection to the CE is terminated and then the active state (204) is switched to the active state (204).

3, in the CM and CE interface definition of the resource management system, the CE is activated in an inactive state 302 through an initialization 328, State 304. < / RTI > The CE is then transitioned from the active state 304 to the inactive state 302 via a shutdown 326.

In addition, the CE transitions to a weighted pay state 308 after sending a connection request (320) to the CM in the active state 304 (send connection request 320). Then, the CE is switched to the active state 304 when the connection response is not received within a predetermined time from the CM in the weighting occupancy state 308 (no connection response 322). Meanwhile, when the CE receives the connection response from the CM within the predetermined time in the weighting occupation state 308 (receive connection response) 324, the CE is switched to the occupied state 300.

In addition, when the CE receives the context information / event information / reconfiguration request of the shared device from the CM (receive CI / EV / RC request) 316, the request reception state 306, And transmits context information, event information, and a reconfiguration response to the CM in response to the request reception (send CI / EV / RC response) (318), and switches to the inquiry state (300).

The CE transmits an event information response corresponding to the generated event to the CM when a specific event predetermined by the CM is generated at the CE even if there is no request from the CM in the occupancy state 300 (Send EV response) 312. In addition, the CE maintains the invite state 300 by periodically sending a keep-hold request to the CM in the occupied state 300 (send being-engagement request) (310).

In addition, the CE transmits a connection disconnection request to the CM in the occupied state 300 (send disconnection request) (314), terminates the connection with the CM, and then switches to the active state 304 do.

Referring to FIG. 4, a meshed transmission / reception between the CM and the CE for the interface between the CM and the CE will be described. In the non-inactive state 470, for example, the CE 405 in the active state, (Step 410), for example, a connection request message to the CM 400 in an active state. After transmitting the connection request message, the CE 405 transmits a timer 1 (472) of the CE 405 for confirming whether the CM 400 receives a response to the connection request within a predetermined time ) Is operated and the CE 405 is switched to the weighted engagement state.

The CM 400 receives the connection request message from the CE 405 and transmits a connection response message to the CE 405 in response to the connection request message (step 412) . At this time, the CM 400 transmits the send response message to switch from the non-in-gauge state 440 to the in-state 450, and in the in-take state 450, The timer 1 452, the timer 2 454, and the timer 3 456 of the CM 400 are operated according to the periods for maintaining the occupancy in the occupancy state 450. [

When the CE 405 receives the connection response message from the CM 400 during the operation of the timer 1 472 of the CE 405, that is, within a predetermined time, the CE 405 transmits, State 480 to the occupied state 480 and the timer 2 482 of the CE 405 in the occupancy state 480 according to the period for maintaining the occupancy set by the CM 400. [ Timer 3 484, and timer 4 486 are operated.

At this point, when the timer 1 452 of the CM 400 and the timer 2 482 of the CE 405 are terminated according to the cycle for holding the ENG, the CE 405 transmits a keep- the CE 405 transmits an engagement request message to the CM 400 in step 422. When the timer 2 454 of the CM 400 and the timer 3 484 of the CE 405 are completed, To the CM 400 (step 428).

The CM 400 transmits a context information request message for requesting the context information of the shared device to the CE 405 in the browse state 480. In this case, (Step 414). The CE 405 receives the context information request message and transmits a context information response message including context information in response to the context information request message 450 to the inquiry state 450. [ To the CM 400 (step 416).

The CM 400 transmits an event request message for requesting event information of the shared device to the CE 405 in the browse state 480 in the browse state 450 (Step 418). In response to the event information request message, the CE 405 receives an event information response message including event information corresponding to the event generated in the CE 405, ) Message to the CM 400 in the inquiry state 450 (step 420). Herein, the CE 405 in the browse state 480 does not receive an event information request message from the CM 400, but an event previously designated by the CM 400 is generated in the CE 405 The CM 400 transmits an event response message including event information corresponding to the generated event to the CM 400 in the browse state 450 in operation 430.

The CM 400 may send a reconfiguration request message for reconfiguring the configuration of the shared device to the CE 405 in the Ingress state 480. In this case, (Step 424). Then, the CE 405 receives the reconfiguration request message, reconfigures the configuration of the shared device in response to the event information request message, and transmits a reconfiguration response message including the reconfiguration information To the CM 400 in the browse state 450 (step 426).

At this time, when the CE 405 in the browse state 480 desires to terminate the connection with the CM 400, in the browse state 480, the CE 405 transmits a disconnection request To the CM 400 in the browse state 450 in step 432. The CE 405 in the browse state 480 terminates the connection with the CM 400 And the non-gauge state 490, that is, the active state. In addition, the CM 400 in the occupied state 450 receives the non-connection request message and terminates the connection with the CE 405, and then switches to the non-in-gauge state 460, that is, the active state . Hereinafter, the definition of the interface between the CM and the CDIS of the resource management system in the communication system according to the embodiment of the present invention will be described in more detail with reference to FIG. 5 to FIG.

5 to 7 are views for explaining a CM and CDIS interface definition of a resource management system in a communication system according to an embodiment of the present invention. 5 is a diagram schematically showing a state diagram of the CM in the CM and CDIS interface definition of the resource management system, and FIG. 6 is a diagram illustrating a state transition diagram of the CDIS in the CM and CDIS interface definition of the resource management system. FIG. 7 is a view schematically showing a process of transmitting and receiving a message between the CM and the CDIS for defining a CM and a CDIS interface of the resource management system. FIG.

5, in the CM and CDIS interface definition of the resource management system, the CM is activated in an inactive state 502 through an initialization 544, (504). The CM is then transitioned from the active state 504 to the inactive state 502 via a shutdown 542.

In addition, the CM transitions to a weighting inbound state 508 after sending a connection request to the CDIS in the active state 504 (send connection request) (536). The CM is then switched to the active state 504 when no connection response is received from the CDIS within a certain time period (no connection response 538) in the weighting occupancy state 508. [ Meanwhile, when the CM receives the connection response from the CDIS within the predetermined time in the weighting occupation state 508 (receive connection response) (540), the CM is switched to the occupied state (500).

In addition, when receiving the context information / event information request (CI / EV request) of the shared device from the CDIS in the occupancy state 500 (receive CI / EV request) (528) The CI / EV response is transmitted to the CDIS (response CI / EV response) in response to the request reception (step 530) .

The CM transmits an event information response corresponding to the generated event to the CDIS when a specific event previously specified by the CDIS occurs in the CM even if there is no request from the CDIS in the occupancy state 500 (Send EV response) 524. In addition, the CM maintains the invite state 500 by periodically transmitting a keep-hold request to the CDIS (send being-engagement request) (520) in the occupancy state (500).

In addition, the CM transmits a context information / event information request of the shared device to the CDIS (send CI / EV request) (532) in the occupancy state (500) , Receives a context information / event information response from the CDIS in response to the request transmission (receive CI / EV response) (534), and switches to the browse state (500).

If the CM does not request the CM in the occupancy state 500, the CM receives an event information response corresponding to the generated event from the CDIS when a specific event predetermined by the CM occurs in the CDIS (Receive EV response) 522. In addition, the CM transmits a connectionless request to the CDIS in the invitation state 500 (send disconnection request) 526, terminates the connection with the CDIS, and then transitions to the active state 504 .

6, in the CM and CDIS interface definition of the resource management system, the CDIS is activated in an inactive state 602 through an initialization 630, State 604 is reached. The CDIS is then transitioned from the active state 604 to the inactive state 602 via a shutdown 628. [

In addition, when the CDIS receives a connection request from the CM in the active state 604, the CDIS transmits a connection response to the CM in response to the connection request (618) The transition to the engaged state 600 is made.

In addition, when receiving the context information / event information request of the shared device from the CM (receive CI / EV request) (620), the CDIS switches to the request reception state (606) In response to the request reception, a context information / event information response is transmitted to the CM (send CI / EV response) (622), and the state is changed to the invitation state (600).

The CDIS transmits an event information response corresponding to the generated event to the CM when the specific event predetermined by the CM occurs in the CDIS even though there is no request from the CM in the occupancy state 600 (Send EV response) 614.

In addition, the CDIS transmits a context information / event information request of the shared device to the CM (send CI / EV request) (624) in the occupancy state 600, and is switched to the request transmission state 608 , Receives a context information / event information response from the CM in response to the request transmission (receive CI / EV response) (626), and transitions to the invitation state (600).

In addition, if the CDIS does not request the CDIS in the browse state 600 and a specific event predetermined by the CDIS occurs in the CM, the CDIS receives an event information response corresponding to the generated event from the CM (receive EV response) (612).

In addition, the CDIS periodically receives a hold maintenance request from the CM in the bear state 600, and maintains the bear state 600 in a receive being-engagement request 610.

In addition, if the CDIS receives a connectionless request from the CM in the browse state 600 or fails to receive a keep-hold request periodically from the CM in the browse state 600 or fail to receive being-engagement request 616, and after the connection with the CE is terminated, the active state 604 is switched.

7, the non-in-gauge state 770, e.g., the CM 705 in the active state, is in the non-in-gauge state 740, For example, a connection request message to the active CDIS 700 (step 710). At this time, after transmitting the connection request message, the CM 705 sends a timer 1 (772) of the CM 705 for confirming whether or not a response to the connection request is received from the CDIS 700 within a predetermined time ) Is operated and the CM 705 is switched to the weighted reception state.

The CDIS 700 receives the connection request message from the CM 705 and transmits a connection response message to the CM 705 in response to the connection request message in operation 712. [ . At this time, the CDIS 700 transmits the send response message to switch from the non-gauge state 740 to the inquiry state 750, and in the inquiry state 750, the CDIS 700 transmits, The timer 1 752, the timer 2 754, and the timer 3 756 of the CDIS 700 are operated in the occupancy state 750 in order to maintain the occupancy.

If the CM 705 receives the connection response message from the CDIS 700 during the operation of the timer 1 772 of the CM 705, that is, within a predetermined time, The timer 2 782 of the CM 705 in the occupancy state 780 is switched from the state 770 to the occupancy state 780 and according to the period for maintaining the occupancy set by the CDIS 700, Timer 3 784, and timer 4 786 are operated.

At this point, the timer 702 of the CMIS 705 terminates the timer 1 752 of the CDIS 700 and the timer 702 of the CM 705 according to a cycle for maintaining the keep- the CM 705 transmits an engagement request message to the CDIS 700 in step 722. When the timer 3 754 of the CDIS 700 and the timer 3 784 of the CM 705 terminate, In step 732, the CDIS 700 transmits an inquiry maintenance request message to the CDIS 700.

In addition, in the presence state 780, the CM 705 transmits a context information request message for requesting the context information of the shared device to the CDIS 700 (Step 714). Upon receipt of the context information request message, the CDIS 700 transmits a context information response message including the context information in response to the context information request message to the browse state 780, To the CM 705 (step 716).

The CDIS 700 may send a context information request message for requesting context information of the shared device to the CM 705 in the browse state 780, (Step 718). In response to the context information request message, the CM 705 receives a context information response message including the context information in response to the context information request message, To the CDIS 700 in step 720 of FIG.

In the browse state 750, the CDIS 700 transmits an event information request message for requesting event information of the shared device to the CM 705 in the browse state 780 (Step 724). In response to the event information request message, the CM 705 receives an event information response message including event information corresponding to the event generated in the CM 705, ) Message to the CDIS 700 in the browse state 750 (step 726). Herein, the CM 705 in the browse state 780 does not receive an event information request message from the CDIS 700, but an event previously designated by the CDIS 700 is generated in the CM 705 An event response message including event information corresponding to the generated event is transmitted to the CDIS 700 in the browse state 750 in operation 736.

In addition, in the browse state 780, the CM 705 transmits an event request message for requesting event information of the shared device to the CDIS 700 in the browse state 750 (Step 728). In response to the event information request message, the CDIS 700 receives an event information response message including event information corresponding to the event generated in the CDIS 700, ) Message to the CM 705 in the inquiry state 780 (step 730). Herein, the CDIS 700 in the browse state 750 may not receive an event information request message from the CM 705, and an event predetermined by the CM 705 may be generated in the CDIS 700 An event response message including event information corresponding to the generated event is transmitted to the CM 705 in the browse state 780 in operation 734.

If the CM 705 of the browse state 780 desires to terminate the connection with the CDIS 700, the CM 705 in the browse state 780 transmits a disconnection request ) Message to the CDIS 700 in the browse state 750 in step 738. The CM 705 in the browse state 780 terminates the connection with the CDIS 700 The non-gauge state 790, that is, the active state. In addition, the CDIS 700 in the inquiry state 750 receives the non-connection request message and terminates the connection with the CM 705, and then switches to the non-in-gauge state 760, that is, to the active state . Hereinafter, the interface definition between CMs of the resource management system in the communication system according to the embodiment of the present invention will be described in more detail with reference to FIG. 8 to FIG.

8 to 12 are views for explaining the interface definition between CMs of the resource management system in the communication system according to the embodiment of the present invention. 8 and 10 are diagrams for explaining the interface definition between the master CM and the slave CM in the resource management system. FIGS. 11 and 12 are diagrams for explaining the interface definition between any CM and the adjacent CM in the resource management system Fig. 8 is a diagram schematically showing the state diagram of the master CM in the interface definition between the master CM and the slave CM in the resource management system, 10 schematically shows a message transmission / reception procedure between the master CM and the slave CM for defining the interface between the master CM and the slave CM of the resource management system. Fig. 11 is a diagram schematically showing a state diagram of a CM in an interface definition between a certain CM and an adjacent CM in the resource management system. FIG. 12 is a diagram showing a state diagram of a CM in the resource management system, Lt; RTI ID = 0.0 > CM < / RTI >

In a communication system according to an embodiment of the present invention, when one master CM and a plurality of slave CMs are connected at the time of defining an interface between CMs of the resource management system, that is, when a plurality of slave CMs When the connected CMs are centralized topologies, the resource management system controls the slave CMs to be controlled by the master CM for coexistence and frequency sharing of the slave CMs. At this time, the resource management system defines interfaces between CMs as shown in FIGS. 8 to 10. FIG. In a case where a plurality of CMs are connected to each other without a predetermined rule, that is, when a plurality of CMs are distributed topologies, the resource management system controls one CM in cooperation with adjacent CMs to coexist and share frequencies among the CMs And the resource management system defines interfaces between the CMs as shown in FIGS. 11 and 12. FIG.

8, in the interface definition between the master CM and the slave CM of the resource management system, the master CM performs an initialization 828 in an inactive state 802 To an active state 804. The master CM is then transitioned from the active state 804 to the inactive state 802 via a shutdown 826.

When the master CM receives a connection request from the slave CM in the active state 804, the master CM transmits a connection response to the slave CM in response to the connection request (receive connection request and send connection response) 816), and transition to the engaged state (800).

In addition, when receiving the context information request of the shared device from the slave CM in the occupancy state 800 (receive CI request) (818), the master CM is switched to the request reception state (806) A response to the context information is sent to the slave CM in response to the send CI response (820), and the state is transferred to the inquiry state (800).

The master CM transmits a context information / event information / reconfiguration request of the shared device to the slave CM (send CI / EV / RC request) 822 in the occupied state 800, 804). When receiving the context information / event information / reconfiguration response from the slave CM in response to the request transmission (receive CI / EV / RC response) 824, do. Here, the master CM transmits (822) the reconfiguration request to the slave CM according to the coexistence determination of the master CM in the occupancy state (800), switches to the request transmission state (808) Upon receipt of a reconfiguration response response from the CM (824), it is switched to the occupancy state (800).

If the master CM receives a specific event previously designated by the master CM in the slave CM even though there is no request from the master CM in the browse state 800, the master CM transmits an event information response corresponding to the generated event (Receive EV response) from the slave CM (812). In addition, the master CM periodically receives a receive-engagement request (810) from the slave CM in the occupied state (800) and maintains the occupied state (800).

In addition, when the master CM receives a connectionless request from the slave CM in the occupancy state 800 or fails to receive the occupancy maintenance request periodically from the slave CM in the occupancy state 800 (814), after the connection with the slave CM is terminated, the active state (804) is switched to the active state (804).

9, in the interface definition between the master CM and the slave CM in the resource management system, the slave CM receives an initialization 942 in the inactive state 902 To an active state 904. Then, the slave CM is switched from the active state 904 to the inactive state 902 through a shutdown process 940.

In addition, after the slave CM sends a connection request to the master CM in the active state 904 (send connection request) (934), the slave CM transitions to the weighting occupied state 910. The slave CM is switched to the active state 904 when no connection response is received from the master CM within a predetermined time period (no connection response 935) in the weighting occupation state 910. On the other hand, when the slave CM receives the connection response from the master CM within the predetermined time in the weighting occupation state 910, the slave CM is switched to the occupied state 900 (receive connection response) (938).

The slave CM switches to the request transmission state 908 when the sender CI request (930) sends a context information request of the shared device to the master CM in the occupancy state 900, A response to the context information is received from the master CM in response to a receive CI response 932, and the transition is made to the inquiry state 900.

When the slave CM receives the context information / event information / reconfiguration request of the shared device from the master CM in the occupancy state 900 (receive CI / EV / RC request) (926) (Send CI / EV / RC response) (928) to the master CM in response to the request reception (926), the transition to the inquiry state (900) do.

If the slave CM receives a specific event previously designated by the master CM in the slave CM even though there is no request from the master CM in the browse state 900, the slave CM receives an event information response corresponding to the generated event (Send EV response) to the master CM (922). In addition, the slave CM periodically maintains an invite state 900 by sending a keep-engagement request to the master CM periodically (920) in the occupancy state 900 (920).

In addition, the slave CM transmits a connection disconnection request to the master CM in the occupied state 900 (send disconnection request) (924), terminates the connection with the master CM, ).

Referring to FIG. 10, a mesh transmission / reception between the master CM and the slave CM for interfacing the master CM and the slave CM will be described. In the non-in gage state 1070, for example, the slave CM 1005 in the active state, A connection request message is transmitted to the master CM 1000 in a state 1040, for example, an active state (operation 1010). At this time, after transmitting the connection request message, the slave CM 1005 transmits a timer of the slave CM 1005 for confirming whether a response to the connection request is received from the master CM 1000 within a predetermined time 1 1072 is operated and the slave CM 1005 is switched to the weighting occupied state.

The master CM 1000 receives a connection request message from the slave CM 1005 and transmits a connection response message to the slave CM 1005 in response to the connection request message 1012). At this time, the master CM 1000 switches from the non-in gauge state 1040 to the engaged state 1050 by transmitting the send response message, and in the engaged state 1050, the master CM 1000, The timer 1 1052, the timer 2 1054, and the timer 3 1056 of the master CM 1000 are set to a period for maintaining the occupancy in the occupancy state 1050 .

When the slave CM 1005 receives the connection response message from the master CM 1000 during the operation of the timer 1 1072 of the slave CM 1005, that is, within a predetermined time, the slave CM 1005 Is switched from the non-gauge state 1070 to the occupied state 1080 and the slave CM 1005 is switched from the occupied state 1080 to the occupied state 1080 according to the period for maintaining the occupancy set by the master CM 1000, The timer 2 1082, the timer 3 1084, and the timer 4 1086 are operated.

At the time when the timer 1 1052 of the master CM 1000 and the timer 2 1082 of the slave CM 1005 terminate according to a cycle for maintaining the interference, the slave CM 1005 transmits a keep- engagement request message to the master CM 1000 in step 1022 and the timer 2 1054 of the master CM 1000 and the timer 3 1084 of the slave CM 1005 are terminated The slave CM 1005 transmits an occupancy maintenance request message to the master CM 1000 (step 1032).

The master CM 1000 transmits a context information request message for requesting the context information of the shared device to the slave CM 102 in the browse state 1080. [ (Step 1014). Then, the slave CM 1005 receives the context information request message, and transmits a context information response message including the context information in response to the context information request message to the inquiry state 1050 To the master CM 1000 in step 1016.

The slave CM 1005 transmits a context information request message for requesting the context information of the shared device to the master CM 1050 in the browse state 1050, (Step 1018). Then, the master CM 1000 receives the context information request message, and transmits a context information response message including the context information in response to the context information request message to the inquiry state 1080 To the slave CM 1005 (step 1020).

The master CM 1000 transmits an event request message for requesting event information of the shared device to the slave CM 1005 in the browse state 1080, (Step 1024). The slave CM 1005 receives the event information request message and transmits an event information response including event information corresponding to the event generated in the slave CM 1005 in response to the event information request message event response message to the master CM 1000 in the browse state 1050 in step 1026. Here, the slave CM 1005 in the browse state 1080 may not receive an event information request message from the master CM 1000, 1005, an event response message including event information corresponding to the generated event is transmitted to the master CM 1000 in the browse state 1050 (step 1034).

The master CM 1000 transmits a reconfiguration request message for reconfiguring (i.e., reconfiguring) the configuration of the shared device to the slave CM 1005 in the browse state 1080 (Step 1028). Then, the slave CM 1005 receives the reconfiguration request message, reconfigures the configuration of the shared device in response to the event information request message, and sends a reconfiguration response including the reconfiguration information, Message to the master CM 1000 in the occupancy state 1050 (step 1030).

At this time, when the slave CM 1005 in the in-state 1080 wants to terminate the connection with the master CM 1000, in the in-state 1080, the slave CM 1005 transmits a connection request the slave CM 1005 in the occupancy state 1080 transmits a disconnection request message to the master CM 1000 in the occupancy state 1050 in step 1036, And is switched to the non-gauge state 1090, that is, the active state. In addition, the master CM 1000 in the occupied state 1050 receives the non-connection request message and terminates the connection with the slave CM 1005, and then transmits the non-connected gage state 1060, that is, .

Next, referring to FIG. 11, a description will be given of the state of any CM in the distributed topology. In the CM definition of the resource management system and the inter-CM between adjacent CMs, the CM has an initialization process ) 1146 to the active state 1104. The CM is then transitioned from the active state 1104 to the inactive state 1102 via a shutdown 1144.

If the CM requests a connection to the neighboring CM, the CM transmits a connection request to the neighboring CM in the active state 1104 (send connection request) (1138) . The CM is switched to the active state 1104 when the connection response is not received within a predetermined time from the adjacent CM in the weighting occupancy state 1110 (no connection response 1140). Meanwhile, when the CM receives the connection response from the adjacent CM within the predetermined time in the weighting occupation state 1110, the CM changes to the occupied state 1100. In this case,

On the other hand, when the adjacent CM requests a connection to the CM, the CM, upon receiving the connection request from the adjacent CM in the active state 1104, transmits a connection response to the adjacent CM in response to the connection request (receive connection request and send connection response) 1128, and an engaged state 1100.

In addition, when receiving the context information / event information request of the shared device from the neighboring CM in the occupancy state 1100 (receive CI / EV request) (1130), the CM changes to the request reception state 1106 , A context information / event information response is transmitted to the neighboring CM in response to the request reception (send CI / EV response) 1132, and the transition to the inquiry state 1100 is made. Here, if the CM does not request the CM in the occupancy state 1100 but a specific event predetermined by the CM occurs in the adjacent CM, the CM transmits an event information response corresponding to the generated CM to the adjacent CM (Receive EV response) 1122.

Then, the CM transmits a context information / event information request of the shared device to the adjacent CM (send CI / EV request) (1134) in the occupancy state 1100, and is switched to the request transmission state 1108 And receives a context information / event information response from the neighboring CM in response to the request transmission (receive CI / EV response) (1136), it is switched to the browse state (1100). Here, if the specific event pre-designated by the neighboring CM occurs in the CM even if there is no request from the neighboring CM in the browse state 1100, the CM transmits an event information response corresponding to the generated event to the neighbor CM (send EV response) (1124). In addition, the CM periodically maintains the CM status 1100 by sending / receiving a CM-request to the CM in the CM status 1100 (1120) .

In addition, the CM transmits / receives a non-connection request to / from the neighboring CM in the browse state 1100, or periodically receives a keep-keeping request from the neighboring CM in the browse state 1100 (Send / receive disconnection request or fail to receive being-engagement request) 1126, and terminates the connection with the adjacent CM, and then the active state 1104 is switched to.

Here, when the CM requests a connection, the CM periodically transmits an occupancy maintenance request to the neighboring CM in the occupancy state 1100 (1120), and the occupancy state (1100) (1126), and terminates the connection with the master CM, and then switches to the active state (1104). When the neighboring CM requests the connection, the CM periodically receives a hold maintenance request from the neighboring CM in the bearer state 1100 (1120), maintains the bearer state 1100 (1126), terminates the connection with the slave CM, and then transitions to the active state (1104). In this case, do.

Then, referring to FIG. 12, the mesh transmission / reception between the CM and the adjacent CM for the interface between the arbitrary CM and the adjacent CM will be described. In the non-in gauge state 1270, for example, the adjacent CM 1205 in the active state, A connection request message is transmitted to the non-gauge state 1240, for example, the active CM 1200 in operation 1210. In the interface definition between the arbitrary CM and the neighboring CM, there are cases where the CM requests a connection and the neighboring CM requests a connection as described above, but a detailed description thereof has been specifically described with reference to FIG. 11 Here, the case where the CM requests a connection is explained mainly for convenience of explanation.

After transmitting the connection request message, the neighboring CM 1205 that has transmitted the connection request message to the CM 1200 transmits a response to the connection request to the CM 1200 within a predetermined period of time The timer 1 1272 of the adjacent CM 1205 for confirming the adjacent CM 1205 is operated and the adjacent CM 1205 is switched to the weighting occupied state.

The CM 1200 receives the connection request message from the adjacent CM 1205 and transmits a connection response message to the adjacent CM 1205 in response to the connection request message 1212 step). At this time, the CM 1200 transitions from the non-in-gauge state 1240 to the engaged state 1250 by transmitting the send response message, and in the occupied state 1250, the CM 1200 transmits an In- And the timer 1 1252, the timer 2 1254, and the timer 3 1256 of the CM 1200 are operated in the occupancy state 1250 according to a period for retaining the occupancy.

When the adjacent CM 1205 receives the connection response message from the CM 1200 during the operation of the timer 1 1272 of the adjacent CM 1205, that is, within a predetermined time, Is switched from the non-gauge state 1270 to the occupied state 1280 and the timer of the adjacent CM 1205 in the occupancy state 1280 according to the period for maintaining the occupancy set by the CM 1200 2 1282, timer 3 1284, and timer 4 1286 are operated.

Herein, at the time when the timer 1 (1252) of the CM 1200 and the timer 2 (1282) of the adjacent CM 1205 terminate according to the period for maintaining the interference, the adjacent CM 1205 transmits a keep retention request engagement request message to the CM 1200 in step 1222 and the timer 2 1254 of the CM 1200 and the timer 3 1284 of the adjacent CM 1205 are terminated, The controller 1205 transmits an occupancy maintenance request message to the CM 1200 (step 1228).

The neighbor CM 1205 transmits a context information request message for requesting the context information of the shared device to the CM 1250 in the browse state 1250. [ 1200 (step 1214). The CM 1200 receives the context information request message and transmits a context information response message including the context information in response to the context information request message to the inquiry state 1280, To the adjacent CM 1205 in step 1216.

In the presence state 1250, the CM 1200 transmits a context information request message for requesting the context information of the shared device to the neighbor CM 1250 in the browse state 1280, 1205 (step 1218). Then, the neighboring CM 1205 receives the context information request message and transmits a context information response message including the context information in response to the context information request message to the inquiry state 1250 (Step 1220).

The master CM 1200 transmits an event request message for requesting event information of the shared device to the adjacent CM 1205 in the browse state 1280, (Step 1224). The neighbor CM 1205 receives the event information request message and generates an event information response including event information corresponding to the event generated in the neighboring CM 1205 in response to the event information request message event response message to the CM 1200 in the inquiry state 1250 (step 1226). Herein, the adjacent CM 1205 in the occupied state 1280 may not receive an event information request message from the CM 1200, and if an event previously designated by the CM 1200 is received from the adjacent CM 1205, An event response message including event information corresponding to the generated event is transmitted to the CM 1200 in the browse state 1250 in operation 1230.

At this time, if the adjacent CM 1205 of the browse state 1280 desires to terminate the connection with the CM 1200, the neighbor CM 1205 in the occupancy state 1280 transmits a connectionless request disconnection request message to the CM 1200 in the browse state 1250 in step 1232 and the neighbor CM 1205 in the browse state 1280 terminates the connection with the master CM And is switched to the non-gauge state 1290, that is, the active state. In addition, the CM 1200 in the occupied state 1250 receives the unconnected request message and terminates the connection with the slave CM, and then switches to the non-in-gauge state 1260, that is, the active state.

The resource management system in the communication system according to the embodiment of the present invention detects a frequency band that can be used by a plurality of systems in a frequency band already used by the main system such as a TV band, The interface defines CE, CMs, and CDIS, respectively, for the coexistence and frequency sharing of systems, as described above, and the context information of the plurality of systems through transmission and reception of signals according to the interface, Event information, and reconfiguration related information are transmitted and received. As a result, a plurality of systems share the usable frequency band through coexistence and frequency sharing.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Therefore, the scope of the present invention should not be limited by the described embodiments, but should be determined by the scope of the appended claims, as well as the appended claims.

Claims (20)

  1. CLAIMS What is claimed is: 1. A resource management system in a communication system including a plurality of systems that do not have usage rights for a first frequency band,
    A coexistence manager (CM) for managing the plurality of systems for coexistence and frequency sharing of the plurality of systems in the usable frequency band when a frequency band in which the plurality of systems are available in the first frequency band is found; );
    A coexistence enabler (CE) for transmitting and receiving the information of the plurality of systems and information of the coexistence manager; And
    And a coexistence discovery and information server (CDIS) supporting control of the coexistence manager for the plurality of systems;
    Wherein the information of the plurality of systems is stored between the coexistence manager, the coexistence enabler, and the coexistence discovery and information server according to an interface defined between the coexistence manager, the coexistence enabler and the coexistence discovery and information server. Transmitted and received;
    Wherein the plurality of systems use the available frequency band by coexistence and frequency sharing by transmitting and receiving information according to the interface;
    The coexistence manager, the coexistence enabler, and the coexistence discovery and information server may be configured to be inactive, active, waiting, engaging, requesting, , And receives a request (request received).
  2. The method according to claim 1,
    Wherein the information of the plurality of systems includes context information, event information, and reconfiguration related information.
  3. 3. The method of claim 2,
    Wherein the interface is defined between the coexistence manager and the coexistence enabler;
    Wherein the coexistence enabler transmits a connection request message and a response message including the context information, the event information, and the reconfiguration related information in the coexistence enabler to the coexistence manager through the interface A resource management system characterized by.
  4. The method of claim 3,
    The coexistence manager transmits a connection response message and a request message requesting the context information, the event information, and the reconfiguration related information in the coexistence enabler to the coexistence enabler through the interface A resource management system characterized by.
  5. 5. The method of claim 4,
    Wherein the coexistence enabler sends a request message to the coexistence manager to request the coexistence manager to transmit and receive the messages through the interface.
  6. 3. The method of claim 2,
    Said interface being defined between said coexistence manager and said coexistence discovery and information server;
    Wherein the coexistence manager includes a connection request message, a request message for requesting the context information and the event information in the coexistence discovery and information server through the interface, and the context information and the event information in the coexistence manager And transmits the included response message to the coexistence discovery and information server.
  7. The method according to claim 6,
    Wherein the coexistence discovery and information server includes a connection request message, a request message for requesting the context information and the event information from the coexistence manager, and a request message for requesting the context information and the context information in the coexistence discovery and information server, And transmits a response message including event information to the coexistence manager.
  8. 8. The method of claim 7,
    Wherein the coexistence manager transmits a request message to the coexistence discovery server and the information server through the interface.
  9. 3. The method of claim 2,
    Wherein the coexistence manager includes a plurality of coexistence managers corresponding to the plurality of systems, respectively;
    Wherein the interface is defined between a master coexistence manager and a slave coexistence manager in the plurality of coexistence managers;
    Wherein the interface is defined between the first coexistence manager and a neighbor coexistence manager in the plurality of coexistence managers.
  10. 10. The method of claim 9,
    Wherein the slave coexistence manager is configured to request, through the interface, a connection request message, a request message for requesting the context information from the master coexistence manager, and the context information, the event information, and the reconfiguration related information in the slave coexistence manager And transmits a response message including information to the master coexistence manager.
  11. 11. The method of claim 10,
    Wherein the master coexistence manager comprises a request message for requesting a connection response message, the context information, the event information, and the reconfiguration related information at the slave coexistence manager through the interface, And transmits a response message including information to the slave coexistence manager.
  12. 11. The method of claim 10,
    Wherein the slave coexistence manager transmits to the master coexistence manager a request message for maintaining a state in which the messages can be transmitted and received through the interface.
  13. 10. The method of claim 9,
    Wherein the neighbor coexistence manager is configured to transmit, via the interface, a connection request message, a request message for requesting the context information at the first coexistence manager, a response message including the context information at the neighbor coexistence manager, Message to the first coexistence manager.
  14. 14. The method of claim 13,
    Wherein the first coexistence manager comprises: a request message requesting the connection response message, the context information and the event information in the neighbor coexistence manager through the interface, the context information in the first coexistence manager, And transmits a response message including information to the neighbor coexistence manager.
  15. 15. The method of claim 14,
    The first coexistence manager transmits to the neighbor coexistence manager a request message for maintaining a transmission / reception state of the messages through the interface;
    Wherein the neighbor manager transmits the transmission / receivable state retention request message to the first coexistence manager through the interface.
  16. delete
  17. The method according to claim 1,
    Wherein the coexistence manager determines operating frequency allocation, transmission power allocation, and transmission time allocation of the plurality of systems in the usable frequency band, and receives context information and event information of the plurality of systems. Management system.
  18. 18. The method of claim 17,
    The coexistence enabler transmits context information and event information of the plurality of systems to the coexistence manager in the usable frequency band;
    Wherein the context information of the plurality of systems includes information on a radio access scheme, a transmission power, a spectrum sensing threshold, and a location of the plurality of systems.
  19. A method for managing resources of a first frequency band in a communication system including a plurality of systems that do not have usage rights for a first frequency band,
    Wherein when an available frequency band of the plurality of systems is found in the first frequency band, an interface between the objects in the usable frequency band is defined for coexistence and frequency sharing of the plurality of systems in the usable frequency band step;
    Transmitting and receiving information of the plurality of systems through the transmission and reception of messages between the objects according to the interface; And
    And using the usable frequency band by sharing and frequency-sharing the plurality of systems in the usable frequency band by transmitting and receiving information of the plurality of systems;
    The interface is defined between a coexistence manager (CM), a coexistence enabler (CE), and a coexistence discovery and information server (CDIS);
    The coexistence manager, the coexistence enabler, and the coexistence discovery and information server may be configured to be inactive, active, waiting, engaging, requesting, , And a request received. ≪ Desc / Clms Page number 20 >
  20. 20. The method of claim 19,
    Wherein the information of the plurality of systems includes context information, event information, and reconfiguration related information.
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