Wireless communication interference control system, interference control method, relay device, and interference control program

Abstract

Provided is a wireless communication interference control system that is suitable for limiting the total amount of interference that many interfering devices cause to interfere-suffering devices that are to be protected. The interference control system comprises a subscriber database in which information related to the respective positions of interfering devices has been stored. The interference control system receives, from the interfering devices located in a service provider network, registration applications (5) including the IDs of the interfering devices. Upon receipt of the registration applications, the interference control system sets the position information that matches the information stored in the subscriber database with respect to the IDs (2)(3)(6). The interference control system transmits the position information to the control device so as to request the registration (6).

Description

[Technical field]

[0001] The present disclosure relates to a wireless communication interference control system, an interference control method, a relay device, and an interference control program, and in particular to a wireless communication interference control system, an interference control method, a relay device, and an interference control program that are suitable for limiting the total amount of interference caused by a large number of interfering devices having wireless communication functions to other interfered devices that should be protected. [Background technology]

[0002] CBRS (Citizens Broadband Radio Service) proposed in the United States is known as a technology premised on the coexistence of an interfered device to be protected and multiple interferer devices that emit interference signals. More specifically, CBRS is a wireless communication technology that has a function of suppressing the total amount of interference to an interfered device when the interfered device and the interferer device share the same frequency band. Non-Patent Document 1 below describes technical standards related to CBRS.

[0003] In CBRS, the interfered device and multiple interferer devices (CBSD: Citizens Broadband Radio Service Device) preregister their location information in a control device (SAS: Spectrum Access System) via a network. The location information includes the latitude and longitude of each interferer device, and information indicating whether the device is installed indoors or outdoors.

[0004] Each interfering device transmits a request to use wireless resources such as a frequency to be used and transmission power to the control device. The control device, which receives the request, estimates the total amount of interference caused by all interfering devices to the interfered device. The total amount of interference is calculated from preregistered location information for each of the interfered device and the interfering device, the antenna gain and transmission power of each device, and the like. The control device then determines whether or not to accept the request for use depending on whether or not the estimated value of the total amount of interference falls within an allowable value, and returns the result of the determination as a response to the interfering device.

[0005] In CBRS, requests and responses between an interfering device and a control device may be exchanged directly or via a relay device (Domain Proxy). [Prior art documents] [Non-patent literature]

[0006] CBRS Baseline Standards, WINNF-TS-0016, CBRS WInnForum Standards, November 25, 2020, https: / / cbrs.wirelessinnovation.org / release-1-of-the-baseline-standard-specifications Summary of the Invention [Problem to be solved by the invention]

[0007] In the optical access services provided by telecommunications carriers, many subscribers use wireless devices such as wireless LAN access points. These wireless devices can be interference sources for interfered devices that should be protected, just like interferer devices in CBRS.

[0008] When CBRS technology is applied to the optical access service described above, a configuration is used in which many interfering devices are placed within the network of the service provider, and the control device is placed outside the network. It is assumed that the location registration of the interfering devices to the control device is left to the subscribers.

[0009] A method for a service subscriber to obtain location information of an interfering device may be, for example, to use the GPS function built into the interfering device. However, if the wireless device is installed indoors, it is difficult to obtain an accurate location using GPS. In addition, if the request for location information is left to the subscriber, it is possible that the location information may be intentionally false.

[0010] For this reason, when a wireless device managed by a service subscriber becomes an interfering device, the CBRS technology may cause a situation in which the control device is unable to accurately grasp the location of the interfering device. In such a situation, the total amount of interference to the interfered device cannot be accurately calculated, making it difficult to adequately protect the communication of the interfered device.

[0011] The present disclosure has been made in consideration of the above-mentioned problems, and has a first objective to provide a wireless communication interference control system that, when multiple interfering devices belonging to a specific network request registration of location information for a control device located outside the network, can convert the location information into information necessary to calculate the correct amount of interference and deliver it to the control device.

[0012] In addition, a second objective of the present disclosure is to provide a wireless communication interference control method that, when multiple interfering devices belonging to a specific network request registration of location information for a control device located outside the network, can convert the location information into information necessary to calculate the correct amount of interference and deliver it to the control device.

[0013] In addition, a third objective of the present disclosure is to provide a wireless communication relay device that, when a request for registration of location information is made from multiple interfering devices belonging to a specific network to a control device located outside the network, can convert the location information into information necessary to calculate the correct amount of interference and deliver the information to the control device.

[0014] A fourth object of the present disclosure is to provide a program for wireless communication interference control that, when multiple interfering devices belonging to a specific network request registration of location information for a control device located outside the network, can convert the location information into information necessary to calculate the correct amount of interference and deliver the information to the control device. [Means for solving the problem]

[0015] In order to achieve the above object, the first aspect is a wireless communication interference control system for calculating the amount of interference caused by a plurality of interfering devices performing wireless communication to an interfered device performing wireless communication, the position information of each of the plurality of interfering devices is registered in a control device that is responsible for calculating the amount of interference, A processor unit; A memory that stores a program executed by the processor unit; a subscriber database storing information regarding the location of each of the interfering devices; The processor unit includes: A process of receiving a registration application including an ID of an interference device from the interference device disposed in the carrier network; a location information generation process for receiving the registration application and setting location information for the ID that matches the information stored in the subscriber database; transmitting the location information to the control device for registration; It is advisable to carry out the following:

[0016] In addition, a second aspect is a wireless communication interference control method for calculating the amount of interference caused by a plurality of interfering devices performing wireless communication to an interfered device performing wireless communication, the position information of each of the plurality of interfering devices is registered in a control device that is responsible for calculating the amount of interference, receiving a registration request from an interference device disposed in a carrier network, the registration request including an ID of the interference device; receiving said registration request and setting location information that matches information stored in a subscriber database that stores information about the location of each of said interfering devices; transmitting said location information to said control device for registration; It is preferable that the present invention includes the following:

[0017] In addition, a third aspect is a wireless communication relay device that registers position information of each of a plurality of interfering devices performing wireless communication in a control device that is responsible for calculating the amount of interference in order to calculate the amount of interference caused by the plurality of interfering devices performing wireless communication, A processor unit; A memory that stores a program executed by the processor unit; a subscriber database storing information regarding the location of each of the interfering devices; The processor unit includes: A process of receiving a registration application including an ID of an interference device from the interference device disposed in the carrier network; a location information generation process for receiving the registration application and setting location information for the ID that matches the information stored in the subscriber database; transmitting the location information to the control device for registration; It is advisable to carry out the following:

[0018] A fourth aspect is a program for controlling interference in wireless communication for implementing the relay device of the third aspect, The processor unit, A process of receiving a registration application including an ID of an interference device from the interference device disposed in the carrier network; receiving said registration request and setting location information that matches information stored in a subscriber database that stores information about the location of each of said interfering devices; transmitting the location information to the control device for registration; It is preferable that the program include a program for executing the above. Effect of the Invention

[0019] According to the first to fourth aspects, when multiple interfering devices belonging to a specific network request registration of location information for a control device located outside the network, the location information can be converted into information required to calculate the correct amount of interference and delivered to the control device. [Brief description of the drawings]

[0020] [Figure 1] FIG. 2 is a diagram for explaining an overview of an interference control system using CBRS, which is a comparative example of the system according to the first embodiment of the present disclosure. [Diagram 2] FIG. 1 is a diagram for explaining an overview of an interference control system according to a first embodiment of the present disclosure. [Diagram 3] 3 is a diagram for explaining the configuration of an interfering device arranged in the carrier network in FIG. 2.

[0023] FIG. [Figure 4] 3 is a diagram for explaining the configuration of a relay device shown in FIG. 2; [Diagram 5] FIG. 2 is a diagram for explaining an overview of the operation of the interference control system according to the present disclosure. [Figure 6] FIG. 2 is a diagram for explaining the operation of the interference control system according to the first embodiment of the present disclosure. [Figure 7] 11 is a flowchart for explaining a flow of a process executed by an interfering device disposed in a provider network when applying for registration of location information in the first embodiment of the present disclosure. [Figure 8]11 is a flowchart illustrating a flow of a process executed by a relay device when applying for registration of location information in the first embodiment of the present disclosure. [Figure 9] FIG. 11 is a diagram for explaining the operation of the interference control system according to the second embodiment of the present disclosure. [Figure 10] 11 is a flowchart illustrating a flow of a process executed by a relay device when applying for registration of location information in the second embodiment of the present disclosure. [Figure 11] FIG. 11 is a diagram for explaining the operation of the interference control system according to the third embodiment of the present disclosure. [Figure 12] 13 is a flowchart illustrating a flow of a process executed by a relay device when applying for registration of location information in the third embodiment of the present disclosure. [Figure 13] 13 is a flowchart for explaining a flow of a process executed by an interfering device disposed in a provider network when applying for registration of location information in a third embodiment of the present disclosure. [Figure 14] FIG. 13 is a diagram for explaining the operation of the interference control system according to the fourth embodiment of the present disclosure. [Figure 15] 13 is a flowchart for explaining a flow of a process executed by an interfering device disposed in a provider network when applying for registration of location information in a fourth embodiment of the present disclosure. [Figure 16] 13 is a flowchart illustrating a flow of a process executed by a relay device when applying for registration of location information in the fourth embodiment of the present disclosure. [Figure 17] FIG. 13 is a diagram for explaining the operation of a first modified example of the fourth embodiment of the present disclosure. [Figure 18] FIG. 13 is a diagram for explaining the operation of a second modified example of the fourth embodiment of the present disclosure. [Figure 19] FIG. 13 is a diagram for explaining the operation of the interference control system according to the fifth embodiment of the present disclosure. [Figure 20] 13 is a flowchart for explaining a flow of processing executed by an interfering device disposed in a provider network when applying for registration of location information in a fifth embodiment of the present disclosure. [Figure 21] 13 is a flowchart illustrating a flow of a process executed by a relay device when applying for registration of location information in the fifth embodiment of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] Embodiment 1 [Comparative Example of the First Embodiment] 1 is a diagram for explaining an overview of an interference control system using CBRS. Hereinafter, the configuration and operation of this system will be described as a comparative example of the interference control system according to the first embodiment of the present disclosure.

[0022] The system shown in FIG. 1 includes an interfered device 10. The interfered device 10 is a wireless device whose communication quality needs to be protected. The system shown in FIG. 1 also includes a plurality of interfered devices 12-1 to 12-5. Here, five interfered devices are illustrated. When it is not necessary to distinguish between the interfered devices 12-1 to 12-5, they will be hereinafter referred to as the interfered device 12 using the reference symbol 12. The interfered device 12 is a wireless device that shares the same frequency band as the interfered device 10.

[0023] A wireless signal emitted from the interfering device 12 may interfere with a wireless signal transmitted and received by the interfered device 10. In Fig. 1, for example, the amount of interference caused by the interfering device 12-1 is represented as "I1" and the amount of interference caused by the interfering device 12-2 is represented as [I2]. Also, the total amount of interference, which is the sum of the interference caused by each of the interfering devices 12, is represented as "I". In order to protect the communication of the interfered device 10, it is necessary to suppress the total amount of interference I to an allowable value or less.

[0024] In the system shown in Fig. 1, some of the interfering devices 12-1 and 12-2 are directly connected to the CBRS control device 14. The remaining interfering devices 12-3 to 12-5 are connected to the control device 14 via a relay device 16. The relay device 16 can relay resource requests and responses between each of the multiple interfering devices 12-3 to 12-5 and the control device 14.

[0025] In a system using CBRS, each of the interfered device 10 and the interfering device 12 pre-registers the device ID, location information, etc., in the control device 14 prior to the start of communication. Fig. 1 shows an example of a registration message 18 transmitted from the interfering device 12-5 to the control device 14. Specifically, the registration message 18 includes the following information: 1.Device ID=CBSD5 2.Latitude and longitude of the device installation location 3. Information indicating whether the device is installed indoors or outdoors 4. Antenna gain of the device

[0026] After the above-mentioned advance registration, each of the interfering devices 12 requests the control device 14 for the communication resources it wishes to use when starting communication. Fig. 1 shows a state in which a resource request 20 including ID=CBSD5 is issued from the interfering device 12-5 to the control device 14. Specifically, the resource request 20 includes the following information: 1. The frequency channel you want to use for communication 2. The transmission power you want to use to transmit the signal

[0027] A database update unit 22 is formed inside the control device 14. The database update unit 22 updates information related to the frequency usage status, etc., based on information obtained by advance registration, information obtained by resource application, and further information of a response generated to the resource application. Specifically, when the database update unit 22 receives a resource application from a specific interfering device 12, it updates the database assuming a case in which the application is permitted. In addition, when it determines whether the application is permitted and generates a response indicating the result, it updates the database again so that the content of the response is reflected.

[0028] A total interference amount estimating unit 24 is formed inside the control device 14. The total interference amount estimating unit 24 calculates the amount of interference caused by each of the interfering devices 12, and the sum of these is set as the total interference amount I. For example, the amount of interference I1 caused by the interfering device 12-1 can be calculated by a known method as a function of the position of the CBSD1, the transmission power of the CBSD1, and the antenna gain of the CBSD1, and the position of the interfered device 10 and the antenna gain of the interfered device 10. When a resource request is received from the interfering device 12-1, the amount of interference I1 that will occur if the request is permitted can be estimated by using the transmission power included in the request in the above calculation. When a resource request is not received from the interfering device 12-1, the amount of interference I1 is calculated based on the wireless resource that the interfering device 12-1 is actually using. The same applies to the amounts of interference I2 to I5 of the other interfering devices 12. The total amount of interference I is calculated by taking the sum of the amounts of interference I1 to I5 estimated or calculated in this way.

[0029] The control device 14 further includes a determination / response unit 26. The determination / response unit 26 determines whether the total interference amount I estimated in response to a resource request issued by any of the interfering devices 12 is equal to or less than the allowable interference value for the interfered device 10. If the relationship "total interference amount I≦allowable value" holds, it can be determined that excessive interference will not occur in the interfered device 10 even if the resource request is accepted. In this case, the determination / response unit 26 generates an OK response to the resource request. On the other hand, if the relationship "total interference amount>allowable value" holds, it can be determined that unacceptable interference will occur in the interfered device 10 if the resource request is accepted. In this case, the determination / response unit 26 generates an NG response to the resource request.

[0030] The response generated by the yes / no decision / response unit 26 is sent to the interfering device 12 directly or via the relay device 16. Fig. 1 shows a state in which a response 28 is sent from the control device 14 to the interfering device 12-5 via the relay device 16. As shown in the figure, this response includes information of OK or NG along with ID=CBSD5.

[0031] When the interfering device 12 receives an OK response to the resource request, it starts communication using the requested frequency and transmission power. On the other hand, when the interfering device 12 receives an NG response to the resource request, it changes the requested resource and makes a resource request again. According to the above process, it is possible to continue to appropriately protect the communication of the interfered device 10 while allowing efficient communication for many interfering devices 12.

[0032] [Configuration of the first embodiment] Figure 2 shows a configuration of an interference control system according to a first embodiment of the present disclosure. In the interference control system shown in Figure 2, an optical access service provided by a specific carrier is incorporated into the CBRS configuration shown in Figure 1. In Figure 2, elements that are the same as those shown in Figure 1 are denoted by the same reference numerals, and descriptions thereof will be omitted or simplified.

[0033] The system shown in Fig. 2 includes a plurality of interfering devices 30-1 to 30-3, together with the interfering devices 12-1 and 12-2. The interfering devices 12-1 and 12-2 are arranged in a public network (NW) 36 together with the control device 14. Hereinafter, when it is not necessary to distinguish between the interfering devices 12-1 and 12-2, they will be referred to as "interfering devices 12".

[0034] The interfering devices 30-1 to 30-3 are wireless devices managed by subscribers of an optical access service provided by a telecommunications carrier. Hereinafter, when there is no need to distinguish between the interfering devices 30-1 to 30-3, they will be referred to as "interfering devices 30" using the reference symbol 30. The interfering device 30 is disposed in a network managed by the telecommunications carrier (hereinafter referred to as "carrier network 32"). Incidentally, the interfering device 30 is connected to the carrier network 32 via a subscriber network managed by a subscriber, but here, the two will be referred to as "carrier network 32" without distinguishing between them.

[0035] A relay device 34 is further disposed in the carrier network 32. The relay device 34 is an element constituting a main part of the interference control system of the present embodiment, and has a function of relaying resource requests and responses between the interfering device 30 and the control device 14.

[0036] Fig. 3 is a block diagram for explaining the configuration of the interfering device 30 shown in Fig. 2. As shown in Fig. 3, the interfering device 30 includes a control unit 40 and an information storage unit 42. The control unit 40 includes a processor unit (CPU). The information storage unit 42 includes a memory, and the memory stores a program to be executed by the CPU. The function of the control unit 40 is realized by the CPU of the control unit 40 proceeding with processing according to the above program. The information storage unit 42 further stores resource information related to the ID of the device, location information, and frequencies used for communication, etc.

[0037] The interfering device 30 includes a wireless interface unit 44. The wireless interface unit 44 can establish wireless communication with an external wireless device via an antenna 46. The wireless interface unit 44 can also acquire GPS information of the device via the antenna 46. The interfering device 30 further includes a network interface unit 48. The network interface unit 48 can transmit and receive messages to and from the relay device 34 via the carrier NW 32.

[0038] FIG. 4 is a block diagram for explaining the configuration of the relay device 34 shown in FIG. 2. As shown in FIG. 4, the relay device 34 includes a control unit 50 and an information storage unit 52. The control unit 50 includes a processor unit (CPU). The information storage unit 52 includes a memory, and the memory stores a program to be executed by the CPU. The function of the control unit 50 is realized by the CPU of the control unit 50 proceeding with the process according to the above program. This program can be recorded on a recording medium and provided to the relay device 34, and can also be provided to the relay device 34 via a network. The information storage unit 52 further stores information such as the contents of the message to be relayed and a frequency usage table. As described later, the frequency usage table stores information on the wireless resources used by each of the interfering devices 30.

[0039] The relay device 34 includes a network interface unit 54. The network interface unit 54 can transmit and receive messages to and from each of the interfering devices 30 via the carrier NW 32, and can also transmit and receive messages to and from the control device 14 via the public NW 36.

[0040] The relay device 34 further includes a subscriber database (DB) 56. The subscriber DB 56 stores information about the location of the interfering device 30, such as the ID and address of the subscriber who manages the interfering device 30.

[0041] Fig. 5 is a diagram for explaining an outline of the operation of the interference control system shown in Fig. 2. In the interference control system according to the present disclosure, similarly to the case of CBRS shown in Fig. 1, the location information of the interfered device 10 and the interfering devices 12, 30 is preregistered in the control device 14. The location information includes latitude and longitude, and information indicating whether the device is installed indoors or outdoors. Fig. 5 illustrates an example of the operation when the interfering device 30-5 belonging to the operator NW 32 preregisters the location information.

[0042] Specifically, FIG. 5 shows that the following operations are executed in chronological order: (1) The interfering device 30-5 issues a request for registration of location information. This request includes the ID and the like of the interfering device 30-5.

[0043] (2) Upon receiving an application for registration of location information, the relay device 34 refers to the subscriber DB using the ID included in the application and obtains information regarding the location of the interfering device 30, such as the address of the subscriber who manages the interfering device 30-5.

[0044] (3) The relay device 34 sets location information that matches the information acquired in the above process, and then transfers the registration message including the location information that matches to the control device 14. (4) The control device 14 registers the information as the location information of the interfering device 30-5. (5) The control device 14 returns a response message notifying the completion of registration.

[0045] In this manner, in the interference control system of the present disclosure, the authority to finally determine the location information of the interfering device 30 is given to the relay device 34. Therefore, according to this system, it is possible to prevent inappropriate location information from being registered in the control device 14 due to the subscriber's intention or mistake, and it is possible to provide high accuracy in the calculation of the total interference amount I suffered by the interfered device 10.

[0046] [Features of the first embodiment] Fig. 6 is a diagram for specifically explaining the flow of the process executed in this embodiment to realize the above function. Fig. 6 shows that the following process is executed in chronological order in the interference control system of this embodiment. Note that Fig. 6, like Fig. 5, illustrates the operation of the interfering device 30-5 when pre-registering location information.

[0047] (1) The interfering device 30-5, which requests registration of its location information, transmits a location information inquiry to the relay device 34. The request for the location information inquiry includes the ID of the interfering device 30-5 (for example, "ID5").

[0048] (2) Relay device 34, which has received the location information inquiry, refers to subscriber DB 56. Subscriber DB 56 stores information on the location of interfering device 30, such as the address of the subscriber, for each ID of interfering device 30. Relay device 34 obtains from subscriber DB 56 an address (e.g., "Address 5") corresponding to the ID (e.g., "ID5") as the address of interfering device 30. (3) Next, the relay device 34 performs location conversion on the address (e.g., "Address 5") to obtain converted location information (e.g., "Location 5") that represents the location of the address. The converted location information is information that defines the absolute location of the address, and can be, for example, the "latitude and longitude" of Address 5. (4) The relay device 34 notifies the interfering device 30 that issued the location information inquiry of the converted location information (for example, "Location 5") obtained by the above conversion.

[0049] (5) After receiving the above notification, the interfering device 30 then issues a registration request. The registration request includes information about the location of the interfering device 30 in addition to the ID (e.g., "ID5"). In this embodiment, the converted location information (e.g., "Location 5") notified by the relay device 34 is used as the information about the location.

[0050] (6) The relay device 34 that received the registration request checks whether the location information included in the request (e.g., "Location 5") matches the converted location information acquired in (3) above (e.g., "Location 5"). If the two match, the relay device 34 transfers the registration message to the control device 14 as the location information.

[0051] (7) The control device 14 that has received the above transfer from the relay device 34 registers the location information (e.g., "Location 5") included in the registration application as location information corresponding to the ID (e.g., "ID5"). The location information registered in this manner is correct information set by the relay device 34 based on the information in the subscriber DB 56. Therefore, according to the above process, accurate location information can be registered in the control device 14. (8) When the above registration is completed, the control device 14 transmits a response, via the relay device 34, to the interfering device 30 that requested the registration, notifying the completion of the registration.

[0052] FIG. 7 is a flowchart for explaining a flow executed by each of the interfering devices 30 included in the provider NW to realize the above operation.

[0053] As shown in FIG. 7, an interfering device 30 that requests registration of its location information first transmits its own ID (for example, "ID5") to request a location information inquiry (step 100).

[0054] Thereafter, it is determined whether converted location information (eg, "Location 5") in response to the above inquiry has been received from relay device 34 (step 102).

[0055] If receipt of the converted location information is acknowledged, a registration request is sent including the converted location information together with the ID (step 104).

[0056] Thereafter, when a response is received that the registration application is approved (step 106), the registration process in the interfering device 30 ends.

[0057] FIG. 8 is a flowchart for explaining the flow of processing executed by the relay device 34 regarding registration of location information in this embodiment.

[0058] As shown in FIG. 9, the relay device 34 first determines whether or not it has received an ID from any of the interfering devices 30 (step 110).

[0059] If reception of the ID is confirmed, it is determined that a location information inquiry has been received from the interfering device 30, and the address (e.g., "Address 5") corresponding to that ID (e.g., "ID5") is obtained from the subscriber DB 56 (step 112).

[0060] Next, the relay device 34 performs location conversion on the acquired address to acquire converted location information representing the location of the address (step 114). Specifically, based on the map information stored in the information storage unit 52, the "latitude and longitude" corresponding to the address is acquired as the converted location information.

[0061] Once the above process is complete, the repeater 34 transmits the converted location information to the interfering device 30 that issued the inquiry (step 116).

[0062] Next, relay device 34 determines whether or not it has received a registration request from interfering device 30 that returned the converted location information (step 118).

[0063] If the registration application is not received after a certain waiting time has elapsed, it is determined that the processing of the registration application has been stopped for some reason, and the address and location information data referenced in the processing of steps 112 and 114 above is cleared (step 120).

[0064] On the other hand, if receipt of the registration request is acknowledged in step 118 above, then it is determined whether the location information contained in the request matches the converted location information obtained in step 114 above (step 122).

[0065] If the two pieces of information do not match in step 122, it can be determined that there is a possibility that the interfering device 30 is requesting registration of unreliable information. In this case, the relay device 34 transmits a response to the interfering device 30 not accepting the registration (step 124).

[0066] On the other hand, if a match between the two pieces of information is found in step 122, a registration request is sent to the control device 14 using the converted location information as location information (step 126).

[0067] Next, the relay device 34 determines whether or not a response regarding the possibility of registration has been received from the control device 14 (step 128).

[0068] Then, upon receiving the response from the control device 14, the relay device 34 transmits the response to the interfering device 30 that issued the registration request (step 130).

[0069] Thereafter, the reference data is cleared by the process of step 120, and the process of the relay device 34 regarding this registration is then terminated.

[0070] According to the above process, the relay device 34 can correct and confirm the location information of the interfering device 30 included in the carrier network 32, and then provide it to the control device 14. Therefore, according to the interference control system of the present embodiment, the accuracy of the location of the interfering device 30 can be reliably ensured, and the amount of interference with the interfered device 10 can be accurately calculated.

[0071] [Modification of the first embodiment] Incidentally, in the above-mentioned embodiment 1, the relay device 34 notifies the interfering device 30 of the converted location information, and the interfering device 30 includes the converted location information in the registration application. However, the present disclosure is not limited to this. For example, the above notification may be abolished, and the registration application issued by the interfering device 30 may be allowed to include information on the location set by the subscriber. If the registration is allowed when the information set by the subscriber matches the converted location information acquired by the relay device 34, the accuracy of the registered information can be properly guaranteed. In this case, the location information registered in the control device 14 may be the information set by the subscriber or the converted location information acquired by the relay device 34.

[0072] Embodiment 2 Next, a second embodiment of the present disclosure will be described with reference to Figures 9 and 10 in addition to Figures 2 to 5. The interference control system of this embodiment can be realized by the hardware configuration shown in Figures 2 to 4, as in the case of the first embodiment. Moreover, the interference control system of this embodiment realizes the operation described with reference to Figure 5 by a specific method different from that of the first embodiment.

[0073] [Features of the second embodiment] Fig. 9 is a diagram for explaining the flow of processing executed in this embodiment for registering the position information of the interfering device 30 in the control device 14. Specifically, Fig. 9 shows in chronological order the processing executed for registering the position information in the interference control system of this embodiment.

[0074] 9, the process (1) and the processes (5) to (8) are the same as those in the first embodiment (see FIG. 6), and therefore the description thereof will be omitted here. The present embodiment is characterized by the process (2) to (3) that is executed by the relay device 34 upon receiving a location information inquiry.

[0075] (2) In this embodiment, the subscriber DB 56 stores information on the installation location of the device together with address information, as shown in the upper part of FIG. 9. The "location" of the "address" refers to a reference point within the premises of the address, and does not necessarily coincide with the installation point of the interference-causing device 30 within the premises. In this embodiment, when the interference-causing device 30 is installed at the subscriber's premises, the deviation between the reference point and the installation point of the device is measured, and the result is recorded in the subscriber DB 56 as "position correction" information. The "position correction" can be, for example, "direction deviation and distance deviation" or "latitude deviation and longitude deviation". The relay device 34 that has received the location information inquiry application (1) from the interference-causing device 30 refers to the subscriber DB 56 based on the ID (e.g., "ID5") included in the application, and acquires the "position correction" information associated with the address together with the address (e.g., "Address 5").

[0076] (3) The relay device 34 then performs a position conversion process. If the "position correction" is a deviation in direction and distance, first, the installation point of the device is identified from the "address" and "position correction" information. Then, the installation point is converted to latitude and longitude to become converted position information (e.g., "position 5"). If the "position correction" is a deviation in latitude and longitude, first, the "address" is converted to latitude and longitude, and the result is reflected with the "position correction" to become converted position information.

[0077] (4) When the above processing is completed, the corrected position information is notified to the interference causing device 30 as converted position information.

[0078] Fig. 10 is a flowchart for explaining the flow of processing executed by the relay device 34 of the present embodiment regarding the registration of location information. In Fig. 10, steps similar to those shown in Fig. 8 are denoted by the same reference numerals, and their explanations are omitted or simplified.

[0079] As shown in Fig. 10, the relay device 34 of this embodiment acquires the address corresponding to the ID in step 112, and then refers to the subscriber DB 56 to acquire corrected position information (step 122). Specifically, first, the construction information in the subscriber DB 56 is referred to, and "position correction" information corresponding to the address is read therefrom. Next, the "address" and "position correction" are converted into latitude and longitude to generate the "corrected position."

[0080] When the above process is completed, the relay device 34 notifies the interfering device 30 of the "corrected position" information as converted position information (step 124).

[0081] Thereafter, in the relay device 34, the processes from step 118 onwards are performed in the same manner as in the first embodiment. Also, in the interfering device 30 which wishes to register its location information, the process shown in Fig. 7 is performed in the same manner as in the first embodiment. As a result, accurate location information indicating the installation point within the premises is registered in the control device 14. Therefore, according to this embodiment, it is possible to further improve the calculation accuracy of the amount of interference suffered by the interfered device 10 compared to the first embodiment.

[0082] [Modification of the second embodiment] As in the first embodiment, it is possible to eliminate the notification of the converted location information from the relay device 34 to the interfering device 30 and allow registration only when the information regarding the location set by the subscriber matches the converted location information acquired by the relay device 34.

[0083] Embodiment 3 Next, a third embodiment of the present disclosure will be described with reference to Figures 11 to 13 together with Figures 2 to 5. The interference control system of this embodiment can be realized by the hardware configuration shown in Figures 2 to 4, as in the case of the first embodiment. Moreover, the interference control system of this embodiment realizes the operation described with reference to Figure 5 by a specific method different from that of the first embodiment.

[0084] [Features of the third embodiment] Fig. 11 is a diagram for explaining the flow of processing executed in this embodiment for registering the position information of the interfering device 30 in the control device 14. Specifically, Fig. 11 shows in chronological order the processing executed for registering the position information in the interference control system of this embodiment.

[0085] 11, the process (1) and the processes (6) to (8) are substantially the same as those in the first embodiment (see FIG. 6), and therefore their description will be omitted or simplified here. The present embodiment is characterized by the process (2) to (3) that is executed by the relay device 34 upon receiving a location information inquiry.

[0086] (2) In this embodiment, the subscriber DB 56 stores information on the location range of the device together with address information, as shown in the upper part of FIG. 11. This "location range" corresponds to an area in which the interference-causing device 30 can be installed within the premises of the address. Specifically, the east-west width (e.g., -a[m] to +b[m]) and the north-south width (e.g., -c[m] to +d[m]) of the area relative to the reference point of the "address" are stored as the "location range". In this embodiment, when the interference-causing device 30 is installed at the subscriber's premises, the above-mentioned "location range" information is obtained and recorded in the subscriber DB 56. The "location range" may be determined by latitude and longitude in addition to distance as described above. The relay device 34 that has received the location information inquiry (1) from the interference-causing device 30 refers to the subscriber DB 56 based on the ID (e.g., "ID5") included in the request, and acquires the "location range" information associated with the address together with the address (e.g., "Address 5").

[0087] (3) Next, the relay device 34 performs a location conversion process. Specifically, the "address" is converted to a "location" in the same manner as in the first embodiment, and the information on the "location" and the "location range" is generated as converted location information.

[0088] (4) When the above processing is completed, the converted location information including the "location" and "location range" is notified to the interfering device 30 that issued the inquiry.

[0089] (5) The interfering device 30 that has received the converted location information issues a registration request by including the received "location" and "location range" in a message. After that, substantially the same process as in the first embodiment is executed, and the "location" and "location range" are registered in the control device 14.

[0090] Fig. 12 is a flowchart for explaining the flow of processing executed by the relay device 34 of the present embodiment regarding the registration of location information. In Fig. 12, steps similar to those shown in Fig. 8 are denoted by the same reference numerals, and the description thereof will be omitted or simplified.

[0091] As shown in Fig. 12, the relay device 34 of this embodiment acquires the address corresponding to the ID in step 112, and then refers to the subscriber DB 56 to acquire converted location information (step 130). Specifically, first, the construction information in the subscriber DB 56 is referred to, and information on the "location range" corresponding to the address is read therefrom. Next, the "address" is converted to a "location," and converted location information including the "location" and the "location range" is generated.

[0092] After completing the above process, the relay device 34 notifies the interfering device 30 of the converted location information including the "location" and "location range" (step 132).

[0093] Furthermore, in this embodiment, when the relay device 34 acknowledges receipt of the registration application in step 118, it determines whether or not the "location" and "location range" included in the registration application match the "location" and "location range" acquired in the above step 130. Thereafter, the relay device 34 performs the processes from step 124 or 126 onward in the same manner as in the first embodiment, according to the result of the determination.

[0094] Fig. 13 is a flowchart for explaining the flow of the process executed by the interfering device 30 regarding the registration of location information in this embodiment. In Fig. 13, steps similar to those shown in Fig. 7 are denoted by the same reference numerals, and the description thereof will be omitted or simplified.

[0095] As shown in FIG. 13, in the interfering device 30 in this embodiment, after processing in step 100, it is determined whether or not converted location information including a "location" and a "location range" has been received from the relay device 34 (step 136).

[0096] Then, when reception of the converted location information is confirmed, a registration request including the "location" and "location range" contained therein is transmitted to the relay device 34 (step 138). The "location" and "location range" transmitted in this manner are confirmed by the relay device 34 as described above, and are registered in the control device 14. Then, similarly to the first embodiment, when a response is received from the control device 14, the process of the interfering device 30 regarding location registration is completed.

[0097] As described above, in the interference control system of this embodiment, the "location" and "location range" of the device can be registered in the control device 14. The location of the interfering device 30 may be relocated within the "location range". In the case of the first or second embodiment, if the "location" of the interfering device 30 changes due to relocation, it may be impossible to accurately calculate the amount of interference thereafter. In this embodiment, by setting the "location range" in advance, the amount of interference can be calculated with the width of the "location range". If the largest amount of interference within that width is adopted, it is possible to suppress the total amount of interference I that the interfered device 10 actually suffers to below the allowable value in any case. Therefore, according to the system of this embodiment, it is possible to ensure even higher communication quality in the interfered device 10 than in the case of the first or second embodiment.

[0098] [Modification of the third embodiment] As in the first embodiment, it is possible to eliminate the notification of the converted location information from the relay device 34 to the interfering device 30 and allow registration only when the information regarding the location set by the subscriber matches the converted location information acquired by the relay device 34.

[0099] Embodiment 4 Next, a fourth embodiment of the present disclosure will be described with reference to Figures 14 to 18 together with Figures 2 to 5. The interference control system of this embodiment can be realized by the hardware configuration shown in Figures 2 to 4, similar to the first embodiment. Moreover, the interference control system of this embodiment realizes the operation described with reference to Figure 5 by a specific method different from that of the first embodiment.

[0100] [Features of the fourth embodiment] Fig. 14 is a diagram for explaining the flow of processing executed in this embodiment for registering the position information of the interfering device 30 in the control device 14. Specifically, Fig. 14 shows how the following processing is executed in chronological order for registering the position information in the interference control system of this embodiment.

[0101] In the first to third embodiments, the converted location information obtained by conversion from the ID is temporarily returned from the relay device 34 to the interfering device 30. In contrast, the present embodiment is characterized in that the relay device 34 obtains location information from the ID and transmits it directly to the control device 14 without returning it to the interfering device 30.

[0102] (1) As shown in FIG. 14, in this embodiment, an interfering device 30 that requests to register its location transmits a registration request including an ID to a relay device .

[0103] (2) The relay device 34 that has received the registration application refers to the subscriber DB 56, as in the first embodiment, and acquires an address (eg, "Address 5") corresponding to the ID (eg, "ID5"). (3) The relay device 34 further converts the address into a location (for example, "Location 5") in the same manner as in the first embodiment.

[0104] (4) After that, the relay device 34 of this embodiment transmits a registration request to the control device 14 with a message including an ID (eg, "ID5") and a location (eg, "Location 5").

[0105] (5) The control device 14 registers the location information included in the message sent from the relay device 34 in association with the interfering device 30 having the ID included in the message. As a result, the accurate location information set by the relay device 34 is registered in the control device 14. (6) After that, a response is sent from the control device 14 to the interfering device 30 via the relay device 34, and the location registration process in this embodiment is completed.

[0106] Fig. 15 is a flowchart for explaining the flow of the process executed by the interfering device 30 for registering location information in this embodiment. In Fig. 15, steps similar to those shown in Fig. 7 are denoted by the same reference numerals, and the description thereof will be omitted or simplified.

[0107] 15, in this embodiment, the interfering device 30 requesting location registration transmits an ID as a registration request (step 140). After that, when a response is received in step 106, the process of the interfering device 30 ends.

[0108] Fig. 16 is a flowchart for explaining the flow of processing executed by the relay device 34 of the present embodiment regarding the registration of location information. In Fig. 16, steps similar to those shown in Fig. 8 are denoted by the same reference numerals, and their explanations are omitted or simplified.

[0109] As shown in Fig. 16, the relay device 34 of this embodiment determines whether or not a registration request including an ID has been received from the interfering device 30 (step 142). If the relay device 34 acknowledges receipt of such a registration request, it acquires "location information" by the processes of steps 112 and 114, as in the first embodiment.

[0110] Then, the registration application message including the ID is converted into a message including "location information" together with the ID (step 144).

[0111] Thereafter, in the relay device 34, the processes from step 126 onwards are executed in the same manner as in the case of embodiment 1. Then, when the reference data is cleared in step 120, the process in the relay device 34 ends.

[0112] As described above, in the interference control system of this embodiment, the relay device 34 transmits the location information obtained by conversion from the ID directly to the control device 14 without returning it to the interfering device 30. As a result, according to this embodiment, while enabling information registration similar to that in the first embodiment, the processing of the interfering device 30 and the processing of the relay device 34 can be significantly simplified compared to the first embodiment.

[0113] Incidentally, in the above-described fourth embodiment, the technique in which the relay device 34 directly transmits location information to the control device 14 is combined with the registration information of the first embodiment, but the present disclosure is not limited to this.

[0114] Fig. 17 shows the operation when the technique in which the relay device 34 directly transmits the position information to the control device 14 is combined with the registration information of the second embodiment, that is, the "corrected position". According to the operation shown in Fig. 17, while enabling the same information registration as in the second embodiment, the processing of the interfering device 30 and the processing of the relay device 34 can be significantly simplified compared to the second embodiment.

[0115] Fig. 18 shows the operation when the technique in which the relay device 34 directly transmits the location information to the control device 14 is combined with the registration information of the third embodiment, that is, the location information including the "location" and the "location range". According to the operation shown in Fig. 18, while enabling the same information registration as in the third embodiment, the processing of the interfering device 30 and the processing of the relay device 34 can be significantly simplified compared to the third embodiment.

[0116] Embodiment 5. Next, a fifth embodiment of the present disclosure will be described with reference to Figs. 19 to 21 together with Figs. 2 to 5. The interference control system of the present embodiment can be realized by the hardware configuration shown in Figs. 2 to 4, as in the case of the first embodiment. Moreover, the interference control system of the present embodiment realizes the operation described with reference to Fig. 5 by a specific method different from that of the first embodiment.

[0117] [Features of the fifth embodiment] Fig. 19 is a diagram for explaining the flow of processing executed in this embodiment for registering the position information of the interfering device 30, which has a function of detecting its own position using GPS, in the control device 14. Specifically, Fig. 19 shows how the following processing is executed in chronological order for registering the position information in the interference control system of this embodiment.

[0118] In the first to third embodiments, the relay device 34 is given the authority to set the location information of the interfering device 30. In contrast, the present embodiment is characterized in that, when the interfering device 30 has a function of detecting its own location using GPS, the authority to set the location information is given to the interfering device 30.

[0119] (1) As shown in FIG. 19, in this embodiment, an interfering device 30 requesting to register its location transmits a registration request including an ID (e.g., “ID5”) and a location acquired using GPS (e.g., “Location 5 (GPS)”, hereinafter referred to as “GPS information”) to a relay device 34.

[0120] (2) The relay device 34 that has received the registration application refers to the subscriber DB 56, as in the first embodiment, and acquires an address (eg, "Address 5") corresponding to the ID (eg, "ID5"). (3) The relay device 34 further converts the address into a location (for example, "Location 5 (DB)") in the same manner as in the first embodiment. (4) Next, the relay device 34 compares the GPS information (e.g., "Position 5 (GPS)") received from the interfering device 30 with the position (e.g., "Position 5 (DB)") acquired by referring to the subscriber DB 56. If the two are found to match, more specifically, if the difference between the two falls within a predetermined allowable range, the relay device 34 recognizes the position information received from the interfering device 30 as correct.

[0121] (5) If the relay device 34 determines that the GPS information received from the interfering device 30 is correct, it transmits a registration request including an ID (e.g., “ID5”) and GPS information (e.g., “Position 5 (GPS)”) to the control device 14.

[0122] (6) The control device 14 registers the GPS information (e.g., "Position 5 (GPS)") sent from the relay device 34 in association with the ID included in the registration application. As a result, the accurate position information acquired using the GPS is registered in the control device 14.

[0123] (7) After that, a response is sent from the control device 14 to the interfering device 30 via the relay device 34, and the location registration process in this embodiment is completed.

[0124] Fig. 20 is a flowchart for explaining the flow of the process executed by the interfering device 30 for registering location information in this embodiment. In Fig. 20, steps similar to those shown in Fig. 7 are denoted by the same reference numerals, and the description thereof will be omitted or simplified.

[0125] 20, the interfering device 30 that requests location registration transmits a registration request including GPS information together with its ID (step 150). After that, when a response is received in step 106, the processing of the interfering device 30 ends.

[0126] Fig. 21 is a flowchart for explaining the flow of processing executed by the relay device 34 of the present embodiment regarding the registration of location information. In Fig. 21, steps similar to those shown in Fig. 8 are denoted by the same reference numerals, and their explanations are omitted or simplified.

[0127] As shown in Fig. 21, the relay device 34 of this embodiment determines whether or not a registration request including GPS information together with an ID has been received from the interfering device 30 (step 152). If the relay device 34 acknowledges receipt of such a registration request, it acquires "location information (DB)" based on the subscriber DB 56 by the processes of steps 112 and 114, as in the first embodiment.

[0128] Next, the relay device 34 determines whether the GPS information and the location information (DB) match (step 154). Here, if the difference between the two is within a preset allowable range, it is determined that the two match. This allowable range may be set based on the range within the premises in which the device can move, such as the "location range" described in the third embodiment. If it is determined in step 154 ​​that the two do not match, the GPS information may be incorrect, and so the processing from step 124 onwards is executed.

[0129] On the other hand, if the difference between the GPS information and the location information (DB) is within the allowable range and it is determined that the two match, it can be determined that the GPS information is reliable. In this case, message conversion is performed to transmit the GPS information to the control device 14 as location information together with the ID (step 156).

[0130] Thereafter, in the relay device 34, the processes from step 126 onwards are executed in the same manner as in the case of embodiment 1. Then, when the reference data is cleared in step 120, the process in the relay device 34 ends.

[0131] As described above, in the interference control system of this embodiment, when the interfering device 30 transmits correct GPS information, the GPS information can be registered as location information in the control device 14. The GPS information correctly indicates the location of the interfering device 30, and is generally more accurate than the location information (DB) estimated by the relay device 34 based on the subscriber DB 56. Therefore, according to this embodiment, the accuracy of the registered location information can be further improved compared to the first to fourth embodiments. [Explanation of symbols]

[0132] 10 Interfered device 12, 12-1 to 12-5, 30, 30-1 to 30-3 Interference device 14 Control device 32 Carrier Network (Carrier NW) 34 Relay Device 36 Public Network (Public NW) 50 Control section 52 Information storage section 56 Subscriber Database (DB)

Claims

1. In order to calculate an amount of interference caused by a plurality of interfering devices performing wireless communication to an interfered device performing wireless communication, position information of each of the plurality of interfering devices is registered in a control device that is responsible for calculating the amount of interference, A processor unit; A memory that stores a program executed by the processor unit; a subscriber database storing information regarding the location of each of the interfering devices; The processor unit includes: A process of receiving a location information inquiry including an ID of an interfering device from an interfering device disposed in a carrier network; receiving the location information inquiry, and identifying an address stored in the subscriber database for the ID; A process of performing a location transformation on the address to obtain transformed location information representing a location of the address; returning the transformed location information to the interferer device that originated the location information query; A process of receiving a registration application including an ID of an interference device from the interference device disposed in the carrier network; a location information generation process for receiving the registration application and setting location information for the ID that matches the information stored in the subscriber database; and transmitting the location information to the control device for registration. The registration request includes, together with the ID, information regarding the location of the interfering device that issued the registration request; The location information generation process of the wireless communication interference control system includes a process of setting the information regarding the location included in the registration application or the converted location information as the location information when the information regarding the location matches the converted location information.

2. The subscriber database stores location correction information representing a deviation between the location of each address and the installation point of the interference device at each address; The DB reference process includes a process of identifying the position correction stored in the subscriber database for the ID, The wireless communication interference control system according to claim 1 , wherein the converted position information represents a corrected position in which the position correction is reflected in a reference point of the address.

3. The subscriber database stores information on location ranges at individual addresses where the interference device can be installed; The DB reference process includes a process of identifying the location range stored in the subscriber database for the ID, The wireless communication interference control system according to claim 1 , wherein the converted location information represents a location of the address and a location range of the address.

4. The registration request includes, together with the ID, GPS information indicating the location of the interfering device obtained by using a GPS; The wireless communication interference control system of claim 1, wherein the location information generation process includes a process of setting the GPS information included in the registration application as the location information when the GPS information matches information stored in the subscriber database.

5. A wireless communication interference control method for calculating an amount of interference caused by a plurality of interfering devices performing wireless communication to an interfered device performing wireless communication, the method comprising: registering position information of each of the plurality of interfering devices in a control device that is responsible for calculating the amount of interference; receiving a location information query from an interfering device located in a carrier network, the location information query including an ID of the interfering device; a DB reference step of receiving the location information inquiry and identifying an address stored in a subscriber database for the ID; performing a location transformation on the address to obtain transformed location information representing a location of the address; returning the transformed location information to the interferer device that originated the location information query; receiving a registration request from an interference device disposed in a carrier network, the registration request including an ID of the interference device; a location information generating step of receiving the registration request and setting location information that matches information stored in the subscriber database that stores information about the locations of each of the interfering devices; and transmitting the location information to the control device for registration; The registration request includes, together with the ID, information regarding the location of the interfering device that issued the registration request; The location information generating step is a method for controlling interference in wireless communication that includes a step of setting information regarding the location included in the registration application or the converted location information as the location information when the information regarding the location matches the converted location information.

6. A wireless communication relay device that registers position information of each of a plurality of interfering devices in a control device that is responsible for calculating the amount of interference in order to calculate the amount of interference caused by the plurality of interfering devices that perform wireless communication to an interfered device that performs wireless communication, A processor unit; A memory that stores a program executed by the processor unit; a subscriber database storing information regarding the location of each of the interfering devices; The processor unit includes: A process of receiving a location information inquiry including an ID of an interfering device from an interfering device disposed in a carrier network; receiving the location information inquiry, and identifying an address stored in the subscriber database for the ID; A process of performing a location transformation on the address to obtain transformed location information representing a location of the address; returning the transformed location information to the interferer device that originated the location information query; A process of receiving a registration application including an ID of an interference device from the interference device disposed in the carrier network; a location information generation process for receiving the registration application and setting location information for the ID that matches the information stored in the subscriber database; and transmitting the location information to the control device for registration. The registration request includes, together with the ID, information regarding the location of the interfering device that issued the registration request; The location information generation process of a wireless communication relay device includes a process of setting information regarding the location included in the registration application or the converted location information as the location information when the information regarding the location included in the registration application matches the converted location information.

7. A program for controlling interference in wireless communication for implementing the relay device according to claim 6, comprising: The processor unit, A process of receiving a location information inquiry including an ID of an interfering device from an interfering device disposed in a carrier network; receiving the location information inquiry, and identifying an address stored in the subscriber database for the ID; A process of performing a location transformation on the address to obtain transformed location information representing a location of the address; returning the transformed location information to the interferer device that originated the location information query; A process of receiving a registration application including an ID of an interference device from the interference device disposed in the carrier network; A location information generation process for receiving the registration request and setting location information that matches information stored in a subscriber database that stores information about the locations of each of the interfering devices; and transmitting the location information to the control device for registration, The registration request includes, together with the ID, information regarding the location of the interfering device that issued the registration request; The location information generation process is a program for wireless communication interference control that includes a process of setting information regarding the location included in the registration application or the converted location information as the location information when the information regarding the location matches the converted location information.

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