JP2021108459A - Communication control device and communication control method - Google Patents

Abstract

To properly protect a primary system from a secondary system.SOLUTION: A communication control device includes a control unit that selects one of multiple primary system protection methods including dynamic or static protection methods on the basis of a primary system radio station usage pattern and usage location information, protects the primary system radio station on the basis of the selected protection method. The control unit uses a protection target area determined on the basis of the usage position information of another radio station which is a communication partner or a protection target point determined on the basis of the usage position information of the other radio to predict the direction of the protection target antenna of the primary system radio station.SELECTED DRAWING: Figure 10

Description

The present disclosure relates to a communication control device and a communication control method.

In the United States, methods for protecting primary systems such as CBRS (Citizens Broadband Radio Service) that utilize frequency sharing technology have been formulated by legislation and standards.

Further, in Japan, it is assumed that the FPU (Field Pickup Unit) operated in the 2.3 GHz band will be the target of frequency sharing.

WINNF-TS-0247-V1.0.0 CBRS Certified Professional Installer Accreditation Technical Specification WINNF-TS-0016-V1.2.1 Signaling Protocols and Procedures for Citizens Broadband Radio Service (CBRS): Spectrum Access System (SAS) --Citizens Broadband Radio Service Device (CBSD) Interface Technical Specification ECC Report 186, Technical and operational requirements for the operation of white space devices under geo-location approach, CEPT ECC, 2013 January White Space Database Provider (WSDB) Contract, available at https://www.ofcom.org.uk/__data/assets/pdf_file/0026/84077/white_space_database_contract_for_operational_use_of_wsds.pdf WINNF-TS-0096-V1.2.0 Signaling Protocols and Procedures for Citizens Broadband Radio Service (CBRS): Spectrum Access System (SAS) --SAS Interface Technical Specification WINNF-TS-0112-V1.4.1 Requirements for Commercial Operation in the U.S. 3550-3700 MHz Citizens Broadband Radio Service Band Information and Communication Council Communication Technology Subcommittee (93rd) Broadcasting System Committee Report

However, in the frequency band in which the FPU (Field Pickup Unit) wireless system is the primary system, the protection method of the primary system to be used may be different even if the same primary system is used. For this reason, the conventional protection method of the primary system as formulated in the United States may not be able to support the sharing of the frequency band in Japan.

Therefore, the present disclosure proposes a communication control device and a communication control method capable of appropriately protecting the primary system from the secondary system.

In order to solve the above problems, the communication control device of one form according to the present disclosure includes a plurality of primary including dynamic or static protection methods based on the usage pattern and usage position information of the radio station of the primary system. It is provided with a control unit that selects one of the system protection methods and protects the radio station of the primary system based on the selected protection method. The control unit uses the protected area determined based on the used position information of the other radio station with which it communicates or the protected point determined based on the used position information of the other radio station of the primary system. Predict the direction of the antenna to be protected by the radio station.

It is explanatory drawing which shows the example of the allocation of the interference margin to each communication device which constitutes a secondary system. It is a figure which shows the outline of the protection method of the primary system which concerns on this embodiment. It is explanatory drawing which shows the hierarchical structure in CBRS. It is explanatory drawing which shows the band of CBRS. It is a figure which shows the configuration example of the communication system which concerns on embodiment of this disclosure. It is a figure which shows the model which the communication control device is arranged in a distributed manner. It is a figure which shows the model which one communication control device controls a plurality of communication control devices centrally. It is a figure which shows the structural example of the base station apparatus which concerns on embodiment of this disclosure. It is a figure which shows the structural example of the terminal apparatus which concerns on embodiment of this disclosure. It is a figure which shows the structural example of the communication control apparatus which concerns on embodiment of this disclosure. It is a figure which shows the configuration example of the proxy apparatus which concerns on embodiment of this disclosure. It is explanatory drawing which shows an example of the interference model assumed in embodiment of this disclosure. It is explanatory drawing which shows another example of the interference model assumed in embodiment of this disclosure. It is explanatory drawing for demonstrating the interference margin simultaneous distribution type primary system protection method. It is a figure which shows the appearance that the surplus interference margin was generated. It is explanatory drawing for demonstrating the interference margin sequential distribution type primary system protection method. It is a sequence diagram for demonstrating the registration procedure. It is a sequence diagram for demonstrating the available frequency information inquiry procedure. It is a sequence diagram for demonstrating the frequency use permission procedure. It is a state transition diagram which shows the permission state of radio wave transmission. It is a sequence diagram for demonstrating the frequency use notification procedure. It is a sequence diagram for demonstrating the exchange procedure of management information. It is a flowchart which shows the procedure of primary system protection. It is a flowchart which shows an example of the switching (selection) procedure of a primary system protection method. It is a figure which shows an example of the protection target area of a mobile station. It is a figure which shows an example of the protection target area of a mobile station. It is a figure which shows an example of the protection target area of a fixed station. It is a figure which shows an example of the protection target area of a mobile station. It is a figure which shows an example of the predicted protection target point and protection target area. It is a figure which shows an example of the predicted protection target point and protection target area. It is a figure which shows an example of the dynamic protection target area for each area which divided the whole movement area. It is a figure which shows the setting example of the 2D protection target antenna direction. It is a figure which shows the setting example of the three-dimensional protection target antenna direction. It is a figure which shows the setting example of the 2D protection target antenna direction. It is a figure which shows the setting example of the three-dimensional protection target antenna direction. It is a figure which shows the setting example of the protection target antenna direction which is different for each protection point. It is a figure which shows the setting example of the 2D dynamic antenna rotation range. It is a figure which shows the setting example of the 3D dynamic antenna rotation range.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. In each of the following embodiments, duplicate description may be omitted by assigning the same reference numerals to the same parts.

Further, in the present specification and the drawings, a plurality of components having substantially the same functional configuration may be distinguished by adding different numbers after the same reference numerals. For example, distinguishing a plurality of the configuration, the communication control device as necessary 40 _1, and as 40 ₂ having substantially the same function and structure. However, if it is not necessary to distinguish each of the plurality of components having substantially the same functional configuration, only the same reference numerals are given. For example, when the communication control apparatus 40 _1, and there is no particular need to distinguish between the 40 ₂ is simply referred to as a communication control unit 40.

In addition, the present disclosure will be described according to the order of items shown below.
1. 1. Introduction 1-1. Control of wireless system to realize frequency sharing 1-2. Outline of this embodiment 1-3. Terminology related to frequency and sharing 2. Communication system configuration 2-1. Overall configuration of communication system 2-2. Configuration of base station equipment 2-3. Configuration of terminal device 2-4. Configuration of communication control device 2-5. Configuration of proxy device 3. Interference model 4. Primary system protection method 4-1. Interference margin simultaneous distribution type 4-2. Interference margin sequential distribution type 5. Explanation of various procedures 5-1. Registration procedure 5-2. Available frequency information inquiry procedure 5-3. Frequency usage permission procedure 5-4. Frequency usage notification 5-5. Supplementary procedures 5-6. Procedures related to terminal devices 5-7. Procedures that occur between communication control devices 6. Primary system protection 6-1. Assumed primary system protection model 6-2. Information about the primary radio station 6-3. Primary system protection 6-4. Point / area protection considering the antenna rotation range 7. Modification example 7-1. Modification example regarding system configuration 7-2. Other modifications 8. Conclusion

<< 1. Introduction >>
In recent years, the problem of depletion of radio wave resources (frequency) that can be assigned to wireless systems has surfaced due to the wireless environment in which various wireless systems coexist and the increase and diversification of the amount of contents via wireless. However, since all radio bands are already used by existing wireless systems, it has been found that it is difficult to allocate new radio resources. Therefore, in order to generate the necessary radio wave resources, utilization of the temporal and spatial free radio waves (White Space) of the existing wireless system by utilizing cognitive radio technology (Dynamic Frequency Sharing (DSA)) ) Began to be sought.

In recent years, in the United States, the legislation and standardization of the Citizens Broadband Radio Service (CBRS), which utilizes frequency sharing technology, is accelerating with the aim of opening the Federal use band (3.55-3.70GHz) to the general public. The Federal use band (3.55-3.70GHz) overlaps with the frequency band of 3GPP bands 42, 43 worldwide. In addition, cognitive radio technology contributes not only to dynamic frequency sharing but also to improvement of frequency utilization efficiency by wireless systems. For example, ETSI EN 303 387 and IEEE 802.19.1-2014 stipulate coexistence technology between wireless systems using databases.

In Japan, the promotion of dynamic frequency sharing targeting the 2.3 GHz band and 26 GHz band is mentioned in the frequency reorganization action in the first year of Reiwa. Broadcasting services, public services, fixed wireless access systems, airport surface detection radars, low-power data communication systems, etc. are already in operation in these bands, and these systems may be subject to frequency sharing.

<1-1. Control of wireless system to realize frequency sharing ＞
Generally, in frequency sharing, the protection of the wireless system (primary system) of the primary user (primary user) licensed or licensed for the use of the frequency band by the national regulatory authority (NRA) of each country / region. Is obligatory. Typically, the NRA sets an allowable interference reference value for the primary system, and the interference caused by sharing is lower than the allowable interference reference value for the wireless system (secondary system) of the secondary user (secondary user). You are asked to do that.

In order to realize frequency sharing, for example, a communication control device (for example, a frequency management database) controls the communication of the secondary system so as not to cause fatal interference to the primary system. The communication control device is a device that manages the communication of the communication device. For example, the communication control device is a device (system) for managing radio wave resources (for example, frequency) such as GLDB (Geo-location Database) and SAS (Spectrum Access System). In the case of this embodiment, the communication control device corresponds to the communication control device 40 described later. The communication control device 40 will be described in detail later.

Here, the primary system is, for example, a system (for example, an existing system) that preferentially uses radio waves in a predetermined frequency band over other systems such as a secondary system. In the 2.3GHz band, FPUs used by broadcasters and wireless systems used in public services fall under this category. The primary system is not required to avoid or suppress interference with the secondary system. Also, the primary system is protected from interference by the secondary system. That is, the primary system can use the frequency band without considering the existence of the secondary system.

Further, the secondary system is, for example, a system that secondarily uses (for example, dynamic frequency sharing) radio waves in the frequency band used by the primary system. The secondary system is required to avoid or suppress interference with the higher priority primary system. The secondary system includes a wireless system operated by a licensed business operator and a wireless system that can be freely used by a user without a license.

Each of the primary system and the secondary system may be composed of a plurality of communication devices, or may be composed of one communication device. The communication control device has 1 so that the cumulative interference of one or more communication devices constituting the secondary system with the primary system does not exceed the interference allowance (also referred to as interference margin) of the primary system. Alternatively, the interference allowance is distributed to a plurality of communication devices. At this time, the allowable interference amount may be a predetermined amount of interference by the operator of the primary system, a public organization that manages radio waves, or the like. In the following description, the term "interference margin" refers to the amount of interference allowed. Further, the accumulation of interference may be referred to as cumulative interference power.

FIG. 1 is an explanatory diagram showing an example of allocating an interference margin to each communication device constituting the secondary system. In the example of FIG. 1, the communication system 1 is the primary system and the communication system 2 is the secondary system. Communication system 1 comprises a wireless communication device 10 ₁ and the like. The communication system 2 comprises a base station apparatus _{20 1,} 20 2, 20 _3, and the like. In the example of FIG. 1, the communication system 1 includes only one wireless communication device 10, but the communication system 1 may have a plurality of wireless communication devices 10. Further, in the example of FIG. 1, the communication system 2 includes three base station devices 20, but the number of base station devices 20 included in the communication system 2 may be less than or more than three. Further, the wireless communication device included in the communication system 2 does not necessarily have to be a base station device. In the example of FIG. 1, only one primary system (communication system 1 in the example of FIG. 1) and one secondary system (communication system 2 in the example of FIG. 1) are shown, but the primary system and the secondary system are shown. There may be more than one of each.

The wireless communication apparatus 10 _1, and base station apparatus _{20 1,} 20 2, 20 ₃ are each capable of transmitting and receiving radio waves. The amount of interference the wireless communications device 10 ₁ is permitted is _{I the accept.} Further, the amount of interference given to the predetermined protection point of base station apparatus _{20 1,} 20 2, 20 ₃ the communication system 1 (primary system) are the interfering amount _{I 1,} I 2, _{I 3.} Here, the protection point is an interference calculation reference point for protection of the communication system 1.

The communication control device includes a plurality of base station devices 20 so that the cumulative interference with a predetermined protection point of the communication system 1 (received interference amount I ₁ + I ₂ + I ₃ shown in FIG. 1) does not exceed the interference margin I _accident. The interference margin I _accident is allocated to. For example, the communication control device allocates the _{interference margin I accident} to each base station device 20 so that the _{interference amounts I 1} , I ₂ , and I ₃ are I _{accident / 3, respectively.} Alternatively, the communication control device allocates an _{interference margin I-accept} to each base station device 20 so that the _{interference amounts I 1} , I ₂ , and I ₃ are I- _{accept / 3, respectively.} The method of allocating the interference margin is not limited to this example.

The communication control device calculates the maximum transmission power (hereinafter, referred to as the maximum allowable transmission power) allowed for each base station device 20 based on the distributed interference amount (hereinafter, referred to as the distributed interference amount). For example, the communication control device calculates the maximum allowable transmission power of each base station device 20 by back-calculating from the distributed interference amount based on the propagation loss, the antenna gain, and the like. Then, the communication control device notifies each base station device 20 of the calculated maximum allowable transmission power information.

<1-2. Outline of this embodiment>
In conventional primary system protection such as CBRS in the United States, the method of primary system protection used for each primary system is stipulated by legislation, standards, and the like.

On the other hand, in Japan, it is assumed that wireless systems such as FPUs will be subject to frequency sharing, but in such a band, even if the same primary system is used, it may be moved or used depending on the usage scene and the type of wireless station. Whether or not there is a plan is different. Therefore, the primary system protection method to be used differs depending on the usage scene and the type of radio station. In the conventional primary system protection, since there is no standard for selecting the primary system protection method, it is not possible to support frequency sharing in Japan.

In addition, conventional primary system protection assumes only limited cases. For example, there are cases where parameters related to the antenna rotation range of the radio station to be protected are given as values, and cases where the primary system needs to be protected regardless of the direction of the antenna for Federal Incumbent. ..

On the other hand, in a primary system such as FPU, it is assumed that the antenna rotates during planned use and the parameters fluctuate, and that the parameters related to antenna rotation change each time a radio station is used unscheduled. Will be done. For this reason, it is necessary to consider the primary system protection considering the antenna rotation range in use and the antenna direction in case of emergency use, but the conventional primary protection system does not take these into consideration. ..

Therefore, the communication control device of the present disclosure selects one from a plurality of primary system protection methods including dynamic or static protection methods based on the usage pattern and usage position information of the radio station of the primary system. do. The communication control device of the present disclosure then protects the radio station of the primary system based on the protection method selected. FIG. 2 is a diagram showing an outline of a protection method for the primary system according to the present embodiment.

As shown in FIG. 2, the communication control device of the present disclosure considers whether the usage pattern is planned usage or unscheduled usage together with the usage position information of the radio station of the primary system. When the usage pattern of the communication control device of the present disclosure is planned use, the communication control device is either static point protection, which is a static protection method, or static area protection, as a protection method for the radio station of the primary system. Select. The communication control device of the present disclosure then protects the primary system based on the selected static point protection or static area protection. On the other hand, when the usage pattern of the communication control device of the present disclosure is unscheduled use, either dynamic point protection or dynamic area protection, which is a dynamic protection method, is used as a protection method for the radio station of the primary system. Select. The communication control device of the present disclosure then protects the primary system based on the selected dynamic point protection or dynamic area protection.

In this way, the communication control device of the present disclosure makes it possible to appropriately protect the primary system from the secondary system.

<1-3. About terms related to frequency and sharing ＞
In the present embodiment, it is assumed that the primary system (communication system 1) and the secondary system (communication system 2) are in a dynamic frequency sharing environment. Hereinafter, the present embodiment will be described by taking CBRS, which has been legally established by the FCC (Federal Communications Commission) of the United States, as an example. The communication system 1 and the communication system 2 of the present embodiment are not limited to CBRS.

FIG. 3 is an explanatory diagram showing a hierarchical structure in CBRS. As shown in FIG. 3, each of the users in the frequency band falls into one of three groups. Each group is called a "tier". Each of these three groups has a defined hierarchical structure consisting of an existing layer (Incumbent Tier), a priority access layer (Priority Access Tier), and a general authorized access layer (General Authorized Access Tier). In this hierarchical structure, the Priority Access Tier is located above the General Authorized Access Tier, and the Incumbent Tier is located above the Priority Access Tier. Taking CBRS as an example, the system located in the existing layer (existing system) becomes the primary system, and the system located in the general authorization access layer and the priority access layer becomes the secondary system.

The existing tier (Incumbent Tier) is a group of existing users in the shared frequency band. In CBRS, the Department of Defense (DOD), fixed satellite operators, and Grandfathered Wireless Broadband Licensee (GWBL) are defined as existing users. The “Incumbent Tier” is not required to avoid or suppress interference with the lower priority “Priority Access Tier” and “GAA (General Authorized Access) Tier”. In addition, the "Incumbent Tier" is protected from interference by the "Priority Access Tier" and "GAA Tier". That is, the user of "Incumbent Tier" can use the frequency band without considering the existence of other groups.

The Priority Access Tier is a group of licensed users called PAL (Priority Access License). Interference avoidance or suppression is required for "Incumbent Tier" which has a higher priority than "Priority Access Tier", but interference avoidance or suppression is not required for "GAA Tier" which has a lower priority. Also, the "Priority Access Tier" is not protected from interference by the higher priority "Incumbent Tier", but is protected from interference by the lower priority "GAA Tier". The General Authorization Access Tier (GAA Tier) is a group consisting of all other users who do not belong to the above-mentioned "Incumbent Tier" and "Priority Access Tier". It is required to avoid or suppress interference with the higher priority "Incumbent Tier" and "Priority Access Tier". Also, the "GAA Tier" is not protected from interference by the higher priority "Incumbent Tier" and "Priority Access Tier". That is, the "GAA Tier" is a "tier" that is legally required to use opportunistic frequencies.

The hierarchical structure is not limited to these definitions. The CBRS is generally called a 3 Tier structure, but may have a 2 Tier structure. A typical example is a 2-tier structure such as LSA (Licensed Shared Access) or TVWS (TV band White Space). The LSA employs a structure equivalent to the combination of the above "Incumbent Tier" and "Priority Access Tier". Further, in TVWS, a structure equivalent to the combination of the above-mentioned "Incumbent Tier" and "GAA Tier" is adopted. Moreover, 4 or more tiers may exist. Specifically, for example, the middle layer corresponding to the "Priority Access Tier" may be further prioritized. Further, for example, "GAA Tier" may be prioritized in the same manner.

FIG. 4 is an explanatory diagram showing a band of CBRS. Taking the CBRS mentioned above as an example, the primary system is the Military Radar System, the Grandfathered Wireless System, or the Fixed Satellite Service (space-to-earth). )). Here, the military radar system is typically a carrier-based radar. The secondary system is a wireless network system consisting of a base station and a terminal called CBSD (Citizens Broadband Radio Service Device) and EUD (End User Device). The secondary system has a higher priority, and a priority access license (PAL: Priority Access License) that allows the shared bandwidth to be licensed and a general authorized access (GAA: General Authorized Access) that is equivalent to not requiring a license are defined. ing. The layer 1 (Tier 1) shown in FIG. 4 corresponds to the existing layer shown in FIG. Further, the layer 2 (Tier 2) shown in FIG. 4 corresponds to the priority access layer shown in FIG. Further, the layer 3 (Tier 3) shown in FIG. 4 corresponds to the general authorization access layer shown in FIG.

The primary system (communication system 1) of the present embodiment is not limited to the example shown in FIG. Another type of wireless system may be the primary system (communication system 1). For example, another wireless system may be used as the primary system depending on the country / region / frequency band to which it is applied. For example, the primary system may be a television broadcasting system such as a DVB-T (Digital Video Broadcasting-Terrestrial) system. Further, the primary system may be a wireless system called FS (Fixed System). Further, the frequency may be shared in other frequency bands. For example, LSA and TVWS (TV band White Space) are typical examples. Further, the primary system may be a cellular communication system such as LTE (Long Term Evolution) or NR (New Radio). Further, the primary system may be an aeronautical radio system such as ARNS (Aeronautical Radio Navigation Service). Of course, the primary system is not limited to the above wireless system, and may be another type of wireless system.

Further, the free radio wave (White Space) used by the communication system 2 is not limited to the frequency band of the Federal use band (3.55-3.70 GHz). The communication system 2 may secondarily use a frequency band different from the Federal use band (3.55-3.70 GHz). For example, if the primary system (communication system 1) is a television broadcasting system, the communication system 2 may be a system that secondarily uses the TV white space. Here, the TV white space refers to a frequency band that is not used by the television broadcasting system among the frequency channels assigned to the television broadcasting system (primary system). At this time, the TV white space may be a channel that is not used depending on the region.

Further, the relationship between the communication system 1 and the communication system 2 is not limited to the frequency sharing relationship in which the communication system 1 is the primary system and the communication system 2 is the secondary system. The relationship between the communication system 1 and the communication system 2 may be a network coexistence relationship between the same or different wireless systems using the same frequency.

Generally, in frequency sharing, the existing system that uses the target band is called the primary system, and the system of the secondary user is called the secondary system. However, when this embodiment is applied to other than the frequency sharing environment, these (primary system, secondary) System) may be replaced with a system of another term. For example, the macro cell in HetNet may be the primary system, and the small cell or the relay station may be the secondary system. Further, the base station may be the primary system, and the Relay UE or Vehicle UE that realizes D2D or V2X existing in the coverage may be the secondary system. The base station is not limited to the fixed type, and may be a portable type / mobile type. In such a case, for example, the communication control device provided by the present invention may be provided in a base station, a relay station, a Relay UE, or the like.

The term "frequency" that appears in the following description may be replaced by another term. For example, the term "frequency" has the terms "resource", "resource block", "resource element", "channel", "component carrier", "carrier", "subcarrier", and similar meanings. It may be replaced by the term it has. The frequency is a kind of radio wave resource. "Radio resource" can also be paraphrased as "frequency resource".

<< 2. Communication system configuration >>
Hereinafter, the communication system 2 according to the embodiment of the present disclosure will be described. The communication system 2 is a wireless communication system that performs wireless communication by secondarily using the frequency band used by the communication system 1 (first wireless system). For example, the communication system 2 is a wireless communication system that dynamically shares a part or all of the frequency band assigned to the communication system 1. The communication system 2 uses a predetermined radio access technology to provide a wireless service to a user or a device owned by the user.

Here, the communication system 2 may be a cellular communication system such as W-CDMA (Wideband Code Division Multiple Access), cdma2000 (Code Division Multiple Access 2000), LTE, or NR. In the following description, "LTE" shall include LTE-A (LTE-Advanced), LTE-A Pro (LTE-Advanced Pro), and EUTRA (Evolved Universal Terrestrial Radio Access). Further, "NR" shall include NLAT (New Radio Access Technology) and FEUTRA (Further EUTRA). The communication system 2 is not limited to the cellular communication system. For example, the communication system 2 may be another wireless communication system such as a wireless LAN (Local Area Network) system, a television broadcasting system, an aeronautical wireless system, or a space wireless communication system.

In this embodiment, the communication system 1 is a primary system and the communication system 2 is a secondary system. As described above, there may be a plurality of each of the communication system 1 and the communication system 2. In the example of FIG. 1, the communication system 1 is composed of one wireless communication device 10 (wireless communication device 101 shown in FIG. ₁ ), but may be composed of a plurality of wireless communication devices 10. The configuration of the wireless communication device 10 may be the same as the configuration of the base station device 20 or the terminal device 30 described later.

<2-1. Overall configuration of communication system>
The communication system 2 is typically composed of the following entities.
Communication equipment (for example, base station equipment and proxy equipment)
Terminal device Communication control device

In the following description, the entity serving as the communication device is assumed to be the base station device 20 and / or the proxy device 50, but the entity serving as the communication device is not limited to the base station device 20 and the proxy device 50, and other entities. Communication device (for example, terminal device 30 or communication control device 40) may be used.

FIG. 5 is a diagram showing a configuration example of the communication system 2 according to the embodiment of the present disclosure. The communication system 2 includes a base station device 20, a terminal device 30, a communication control device 40, and a proxy device 50. The communication system 2 provides a wireless service to a user or a device owned by the user by operating in cooperation with each device (for example, a communication device such as a wireless communication device) constituting the communication system 2. The wireless communication device is a device having a wireless communication function, and in the example of FIG. 5, the base station device 20 and the terminal device 30 correspond to each other.

The communication control device 40 and the proxy device 50 may have a wireless communication function. In this case, the communication control device 40 and the proxy device 50 can also be regarded as wireless communication devices. In the following description, the wireless communication device may be simply referred to as a communication device. The communication device is not limited to the wireless communication device. For example, a device that does not have a wireless communication function and can only perform wired communication can be regarded as a communication device.

The communication system 2 may include a plurality of base station devices 20, terminal devices 30, communication control devices 40, and proxy devices 50, respectively. In the example of FIG. 5, the communication system 1 includes a base station apparatus _{20 1,} 20 _2, 20 _3, 20 4, 20 ₅ or the like as the base station apparatus 20. The communication system 2 includes a terminal device _{30 1,} 30 _2, 30 3, 30 _4, etc. as a terminal device 30. The communication system 1 includes a communication control unit ₄₀ 1, 40 _2, etc. as a communication control unit 40.

In the following description, the wireless communication device may be referred to as a wireless system. For example, the wireless communication device 10 and the base station devices 20 _{1 to 25} are each one wireless system. Further, each of the terminal devices 30 ₁ to 30 ₄ is one wireless system. In the following description, the communication system 1 is referred to as the first wireless system, but each of the one or more wireless communication devices 10 included in the communication system 1 may be regarded as the first wireless system. Further, in the following description, one or a plurality of base station devices 20 included in the communication system 2 are referred to as a second radio system, but the communication system 2 itself may be regarded as a second radio system, and the communication system 2 may be regarded as a second radio system. Each of the one or more terminal devices 30 provided may be regarded as a second wireless system. If the communication control device 40 and the proxy device 50 have a wireless communication function, each of the communication control device 40 or the proxy device 50 may be regarded as a second wireless system.

The wireless system may be one system composed of a plurality of communication devices including at least one wireless communication device. For example, a system composed of one or more base station devices 20 and one or more terminal devices 30 under the base station device 20 may be regarded as one wireless system. It is also possible to regard each of the communication system 1 and the communication system 2 as one wireless system. In the following description, a communication system composed of a plurality of communication devices including at least one wireless communication device may be referred to as a wireless communication system or simply a communication system. A system composed of a plurality of communication devices including one wireless communication device may be regarded as a first wireless system or a second wireless system.

[Base station equipment]
The base station device 20 (second wireless system) is a wireless communication device that wirelessly communicates with the terminal device 30 or another communication device (another base station device 20, another proxy device 50). The base station device 20 is a type of communication device. The base station device 20 is, for example, a device corresponding to a radio base station (Base Station, Node B, eNB, gNB, etc.) or a radio access point (Access Point). The base station device 20 may be a wireless relay station. The base station device 20 may be a road base station device such as an RSU (Road Side Unit). Further, the base station device 20 may be an optical overhanging device called an RRH (Remote Radio Head). Further, the base station device 20 may be a receiving station of the Field Pickup Unit (FPU). In the present embodiment, the base station of the wireless communication system may be referred to as a base station device. The wireless access technology used by the base station device 20 may be a cellular communication technology or a wireless LAN technology. Further, the wireless access technology used by the base station apparatus 20 is not limited to these, and may be another wireless access technology.

The base station device 20 does not necessarily have to be fixed, and may be installed in a moving device such as an automobile. Further, the base station device 20 does not necessarily exist on the ground, but exists in the air or in space such as an aircraft, a drone, a helicopter, a satellite, or in the sea or in the sea such as a ship or a submarine. The object to be used may be provided with a communication device function. In such a case, the base station device 20 can perform wireless communication with another communication device fixedly installed.

The size of the coverage of the base station apparatus 20 may also be from a large one such as a macro cell to a small one such as a pico cell. Of course, the size of the coverage of the base station apparatus 20 may be extremely small, such as a femtocell. Further, when the base station apparatus 20 has a beamforming capability, a cell or a service area may be formed for each beam.

Base station equipment 20 may be utilized, operated, and / or managed by various entities. For example, the base station device 20 includes a mobile network operator (MNO: Mobile Network Operator), a virtual mobile network operator (MVNO: Mobile Virtual Network Operator), a virtual mobile communication enabler (MVNE: Mobile Virtual Network Enabler), and the like. Neutral Host Network (NHN) operators, broadcast operators, enterprises, educational institutions (school corporations, local government education committees, etc.), real estate (buildings, condominiums, etc.) managers, individuals, etc. can be assumed. .. Of course, the subject of use, operation, and / or management of the base station apparatus 20 is not limited to these.

The base station device 20 may be installed and / or operated by one business operator, or may be installed and / or operated by one individual. Of course, the installation / operation entity of the base station device 20 is not limited to these. For example, the base station device 20 may be jointly installed and operated by a plurality of businesses or a plurality of individuals. Further, the base station device 20 may be a shared facility used by a plurality of businesses or a plurality of individuals. In this case, the installation and / or operation of the equipment may be carried out by a third party different from the user.

The base station apparatus 20 operated by the operator is typically connected to the Internet via a core network. Further, the base station apparatus 20 is operated and maintained by a function called OA & M (Operation, Administration & Maintenance). The communication system 2 may have, for example, a network manager that integrally controls the base station apparatus 20 in the network.

The concept of a base station includes an access point and a wireless relay station (also referred to as a relay device). Further, the concept of a base station includes not only a structure having a function of a base station but also a device installed in the structure. The structure is, for example, a building such as an office building, a house, a steel tower, a station facility, an airport facility, a port facility, or a stadium. The concept of structure includes not only buildings but also non-building structures such as tunnels, bridges, dams, walls, and iron pillars, and equipment such as cranes, gates, and windmills. The concept of a structure includes not only structures on land (above ground in a narrow sense) or underground, but also structures on water such as piers and mega floats, and structures underwater such as ocean observation facilities.

Further, the base station may be a base station (mobile station) configured to be movable. At this time, the base station (mobile station) may be a wireless communication device installed on the mobile body or may be the mobile body itself. Further, the moving body may be a moving body (for example, a vehicle such as a car, a bus, a truck, a train, a linear motor car, etc.) that moves on land (ground in a narrow sense), or in the ground (for example, in a tunnel). It may be a moving body (for example, a subway) that moves around. Of course, the mobile body may be a mobile terminal such as a smartphone. Further, the moving body may be a moving body moving on the water (for example, a ship such as a passenger ship, a cargo ship, a hovercraft, etc.), or a moving body moving underwater (for example, a submersible, a submarine, an unmanned submarine, etc.). Submersible). Further, the moving body may be a moving body moving in the atmosphere (for example, an aircraft such as an airplane, an airship, or a drone), or a space moving body moving outside the atmosphere (for example, an artificial satellite, a spaceship, or space). It may be an artificial celestial body such as a station or a spacecraft).

[Terminal device]
The terminal device 30 is a communication device having a communication function. The terminal device 30 is typically a communication device such as a smartphone. The terminal device 30 may be a user terminal such as a mobile phone, a smart device (smartphone or tablet), a wearable terminal, a PDA (Personal Digital Assistant), or a personal computer. Further, the terminal device 30 may be a motorcycle, a mobile relay vehicle, or the like equipped with a communication device such as an FPU. The terminal device 30 may be referred to as User Equipment, User Terminal, User Station, Mobile Terminal, Mobile Station, or the like.

The terminal device 30 does not have to be used by a person. The terminal device 30 may be a sensor installed in a factory machine or a building, such as a so-called MTC (Machine Type Communication). Further, the terminal device 30 may be an M2M (Machine to Machine) device or an IoT (Internet of Things) device. Further, the terminal device 30 may be a device having a relay communication function, as represented by D2D (Device to Device) and V2X (Vehicle to everything). Further, the terminal device 30 may be a device called CPE (Client Premises Equipment) used in a wireless backhaul or the like. Further, the terminal device 30 may be a wireless communication device installed on the mobile body, or may be the mobile body itself.

Further, the terminal device 30 does not necessarily have to exist on the ground, but exists in the air or in space such as an aircraft, a drone, a helicopter, a satellite, or in the sea or in the sea such as a ship or a submarine. It may be an object.

[Communication control device]
The communication control device 40 is a device that manages the base station device 20. For example, the communication control device 40 is a device that controls wireless communication of the base station device 20. For example, the communication control device 40 determines a communication parameter (also referred to as an operation parameter) used by the base station device 20, and permits or gives an instruction to the base station device 20. At this time, the communication control device 40 may be a network manager that integrally controls wireless devices in the network. Taking ETSI EN 303 387 and IEEE 802.119.1-2014 as an example, the communication control device 40 may be a control device such as a Spectram Manager / Coexistence Manager that controls radio wave interference between wireless devices. Further, for example, the RLSS (Registered Location Secure Server) defined in IEEE 802.11-2016 can also be the communication control device 40. Further, in a frequency sharing environment, a database (database server, device, system) such as GLDB (Geolocation database) or SAS (Spectrum Access System) can also be the communication control device 40. Basically, the control target of the communication control device 40 is the base station device 20, but the communication control device 40 may control the terminal device 30 under the control device 40.

A plurality of communication control devices 40 may exist in one communication system 2. FIG. 6 is a diagram showing a model in which the communication control device 40 is arranged in a distributed manner. In this case, (in the example of FIG. 6, the communication control device 40 ₁ and the communication control unit 40 ₂₎ a plurality of communication control device 40 to exchange information on the base station device 20 that manages one another, the required frequency allocation and interference Perform control calculations.

Further, the communication control device 40 may be a master-slave type device. FIG. 7 is a diagram showing a model (so-called master-slave type model) in which one communication control device centrally controls a plurality of communication control devices. In the example of FIG. 7, the communication control device 40 ₃ are master communication control device, communication control unit 40 _4, 40 ₅ is the slave communications controller. In the case of such a system, the master communication control device can control a plurality of slave communication control devices and make a centralized decision. Further, the master communication control device can transfer or destroy the decision-making authority to each slave communication control device for the purpose of load balancing (load balancing) or the like.

The communication control device 40 can acquire necessary information from entities other than the base station device 20, the terminal device 30, and the proxy device 50 for its role. Specifically, the communication control device 40 can acquire information necessary for protection, such as location information of the primary system, from a database (regular database) managed and operated by a national / regional radio wave administrative agency, for example. An example of a regulatory database is the ULS (Universal Licensing System) operated by the Federal Communications Commissions. Other examples of information needed for protection include, for example, Out-of-Band Emission (OOBE) Limit, Adjacent Channel Leakage Ratio (ACLR), Adjacent Channel Selectivity (Adjacent). Channel Selectivity), fading margin, and / or protection ratio (PR), etc. may be included. For these examples, it is desirable to use them when numerical values are given in a fixed manner under the legal system.

Further, the communication control device 40 can acquire detailed specifications and usage schedule information of the radio station (primary radio station) of the primary system from the radio station specification database and the radio station usage schedule database. The radio station specification database in which the specifications of the primary radio station are input and the radio station usage schedule database in which the usage schedule information is input are managed and operated by the broadcaster or public business organization that is the operator of the primary system. May be done. In addition, the radio station specification database and the radio station usage schedule database are provided by broadcasters, public business organizations, etc., which are the operators of the primary system, as well as communication control device operators, government agencies, third-party organizations, etc. May be managed and operated. The primary system operator stores various information of the primary radio station before actually using the radio station. Moreover, this database can be operated as one database. Further, the acquisition of various information does not necessarily have to go through the database, and for example, the primary system operator can directly input the information to the communication control device 40 by using the HTTP request / response or the like.

Further, as another example, it can be assumed that the communication control device 40 acquires radio wave sensing information from a radio wave sensing system installed and operated for the purpose of detecting radio waves in the primary system. As a specific example, the communication control device 40 can acquire radio wave detection information of the primary system from a radio wave sensing system such as an environmental sensing function (ESC: Environmental Sensing Capability) in the US CBRS. Further, when the communication device or the terminal has a sensing function, the communication control device 40 may acquire the radio wave detection information of the primary system from these.

Further, the primary system operator may directly notify the communication control device 40 of the use of the radio station without performing radio wave sensing. At this time, the primary system operator can notify the use by writing information such as the usage time and location in a database such as a wireless station usage schedule database. It is also conceivable that the primary system operator directly inputs to the communication control device 40 by using the HTTP request / response or the like.

[Proxy device]
The proxy device 50 (proxy system) is a device that communicates with the communication control device 40 on behalf of (representatively) one or a plurality of communication devices (for example, the base station device 20). The proxy device 50 is also a type of communication device. The proxy device 50 may be a DP (Domain Proxy) defined in Non-Patent Document 2 and the like. Here, the DP refers to an entity that communicates with the SAS on behalf of each of the plurality of CBSDs or a network composed of the plurality of CBSDs. The proxy device 50 is not limited to the DP defined in Non-Patent Document 2 as long as it has a function of communicating with the communication control device 40 on behalf of (representative) one or a plurality of communication devices. .. The network manager that integrally controls the base station device 20 in the network may be regarded as the proxy device 50.

The interface between each entity may be wired or wireless. For example, as an interface between a communication control device and a communication device, not only a wired line but also a wireless interface that does not depend on frequency sharing can be used. At this time, the wireless interface is, for example, a wireless interface provided by a mobile communication operator via a licensed band or a wireless interface using an existing license-exempt band (for example, Wi). -A wireless interface that uses Fi communication) or the like.

Hereinafter, the configuration of each device constituting the communication system 2 will be specifically described.

<2-2. Base station equipment configuration>
First, the configuration of the base station apparatus 20 will be described. FIG. 8 is a diagram showing a configuration example of the base station device 20 according to the embodiment of the present disclosure. The base station device 20 is a wireless communication device (wireless system) that wirelessly communicates with the terminal device 30 under the control of the communication control device 40. For example, the base station device 20 is a base station device (ground station device) located on the ground. At this time, the base station device 20 may be a base station device arranged on a structure on the ground, or may be a base station device installed on a mobile body moving on the ground. More specifically, the base station device 20 may be an antenna installed in a structure such as a building and a signal processing device connected to the antenna. Of course, the base station device 20 may be a structure or a moving body itself. "Ground" is not only on land (ground in a narrow sense) but also on the ground in a broad sense including underground, water, and water. The base station device 20 is a type of communication device.

The base station device 20 is not limited to the ground station device. For example, the base station device 20 may be a base station device (non-ground station device) that moves or floats in the air or in space. At this time, the base station device 20 may be an aircraft station device or a satellite station device.

The aircraft station device may be a device mounted on an aircraft or the like, or may be an aircraft itself. The concept of an aircraft includes not only heavy aircraft such as airplanes and gliders, but also light aircraft such as balloons and airships. The concept of an aircraft also includes rotary-wing aircraft such as helicopters and autogyros. The aircraft station device (or the aircraft on which the aircraft station device is mounted) may be a manned aircraft or an unmanned aerial vehicle such as a drone.

The satellite station device may be a device mounted on a space mobile body such as an artificial satellite, or may be a space mobile body itself. Satellites that serve as satellite station equipment are low orbit (LEO: Low Earth Orbiting) satellites, medium earth orbit (MEO: Medium Earth Orbiting) satellites, geostationary orbit (GEO: Geostationary Earth Orbiting) satellites, and high elliptical orbit (HEO: Highly Elliptical Orbiting). ) It may be any of the satellites. Of course, the satellite station device may be a device mounted on a low earth orbit satellite, a medium earth orbit satellite, a geostationary satellite, or a high elliptical orbit satellite.

Further, the base station device 20 may be a relay station device. The relay station device is, for example, an aviation station or an earth station. The relay station device can be regarded as a kind of the above-mentioned relay device. An aviation station is a radio station installed on the ground or on a mobile body moving on the ground to communicate with an aircraft station device. In addition, the earth station is a radio station located on the earth (including the air) in order to communicate with the satellite station device. The earth station may be a large earth station or a small earth station such as VSAT (Very Small Aperture Terminal). The earth station may be a VSAT controlled earth station (also referred to as a master station or a HUB station) or a VSAT earth station (also referred to as a slave station). Further, the earth station may be a radio station installed in a mobile body moving on the ground. For example, as an earth station mounted on a ship, an onboard earth station (ESV: Earth Stations on board Vessels) can be mentioned. In addition, the earth station may include an aircraft earth station installed on an aircraft (including a helicopter) and communicating with a satellite station. Further, the earth station may include an aviation earth station which is installed on a mobile body moving on the ground and communicates with an aircraft earth station via a satellite station. The relay station device may be a portable mobile radio station that communicates with a satellite station or an aircraft station.

The base station device 20 includes a wireless communication unit 21, a storage unit 22, a network communication unit 23, and a control unit 24. The configuration shown in FIG. 8 is a functional configuration, and the hardware configuration may be different from this. Further, the functions of the base station device 20 may be distributed and implemented in a plurality of physically separated devices.

The wireless communication unit 21 is a wireless communication interface that wirelessly communicates with other communication devices (for example, a terminal device 30, a communication control device 40, a proxy device 50, and another base station device 20). The wireless communication unit 21 operates according to the control of the control unit 24. The wireless communication unit 21 may support a plurality of wireless access methods. For example, the wireless communication unit 21 may support both NR and LTE. The wireless communication unit 21 may support other cellular communication methods such as W-CDMA and cdma2000. Further, the wireless communication unit 21 may support a wireless LAN communication method in addition to the cellular communication method. Of course, the wireless communication unit 21 may only support one wireless access method.

The wireless communication unit 21 includes a reception processing unit 211, a transmission processing unit 212, and an antenna 213. The wireless communication unit 21 may include a plurality of reception processing units 211, transmission processing units 212, and antennas 213, respectively. When the wireless communication unit 21 supports a plurality of wireless access methods, each unit of the wireless communication unit 21 may be individually configured for each wireless access method. For example, if the base station apparatus 20 corresponds to NR and LTE, the reception processing unit 211 and the transmission processing unit 212 may be individually configured by NR and LTE.

The reception processing unit 211 processes the uplink signal received via the antenna 213. The reception processing unit 211 includes a wireless reception unit 211a, a multiple separation unit 211b, a demodulation unit 211c, and a decoding unit 211d.

The radio receiver 211a performs down-conversion, removal of unnecessary frequency components, control of amplification level, orthogonal demodulation, conversion to digital signal, removal of guard interval, and fast Fourier transform of the frequency domain signal for the uplink signal. Extract, etc. For example, it is assumed that the wireless access system of the base station device 20 is a cellular communication system such as LTE. At this time, the multiplex separation unit 211b separates the uplink channel such as PUSCH (Physical Uplink Shared Channel) and PUCCH (Physical Uplink Control Channel) and the uplink reference signal from the signal output from the wireless reception unit 211a. The demodulation unit 211c demodulates the received signal with respect to the modulation symbol of the uplink channel by using a modulation method such as BPSK (Binary Phase Shift Keying) or QPSK (Quadrature Phase Shift Keying). The modulation method used by the demodulation unit 211c may be 16QAM (Quadrature Amplitude Modulation), 64QAM, or 256QAM. The decoding unit 211d performs decoding processing on the coded bits of the demodulated uplink channel. The decoded uplink data and uplink control information are output to the control unit 24.

The transmission processing unit 212 performs transmission processing of downlink control information and downlink data. The transmission processing unit 212 includes a coding unit 212a, a modulation unit 212b, a multiplexing unit 212c, and a wireless transmission unit 212d.

The coding unit 212a encodes the downlink control information and the downlink data input from the control unit 24 by using a coding method such as block coding, convolutional coding, or turbo coding. The modulation unit 212b modulates the coding bits output from the coding unit 212a by a predetermined modulation method such as BPSK, QPSK, 16QAM, 64QAM, 256QAM and the like. The multiplexing unit 212c multiplexes the modulation symbol of each channel and the downlink reference signal and arranges them in a predetermined resource element. The wireless transmission unit 212d performs various signal processing on the signal from the multiplexing unit 212c. For example, the radio transmitter 212d converts to the time domain by fast Fourier transform, adds a guard interval, generates a baseband digital signal, converts to an analog signal, quadrature modulation, up-conversion, removes an extra frequency component, and so on. Performs processing such as power amplification. The signal generated by the transmission processing unit 212 is transmitted from the antenna 213.

The storage unit 22 is a data-readable / writable storage device such as a DRAM, SRAM, flash memory, and hard disk. The storage unit 22 functions as a storage means for the base station device 20. The storage unit 22 stores desired transmission power information, operating parameters, possessed resource information, and the like.

The desired transmission power information is information on the transmission power required by the base station device 20 from the communication control device 40 as information on the transmission power required for transmitting radio waves.

The operation parameter is information (for example, setting information) regarding the radio wave transmission operation of the base station device 20. For example, the operating parameter is information on the maximum value (maximum allowable transmission power) of the transmission power allowed in the base station apparatus 20. Of course, the operating parameters are not limited to the information on the maximum allowable transmission power.

Further, the possessed resource information is information regarding possession of the radio resource of the base station apparatus 20. For example, the possessed resource information is information on radio resources currently available to the base station apparatus 20. For example, the resource-rich information is information on the amount of interference margin held by the base station device 20 from the communication control device 40. The information on the holding amount may be the information for each resource block described later. That is, the possessed resource information may be information about the resource block possessed by the base station apparatus 20 (for example, the resource block possession amount).

The network communication unit 23 is a communication interface for communicating with other devices (for example, a communication control device 40, a proxy device 50, and another base station device 20). For example, the network communication unit 23 is a LAN (Local Area Network) interface such as a NIC (Network Interface Card). The network communication unit 23 may be a USB interface composed of a USB (Universal Serial Bus) host controller, a USB port, and the like. Further, the network communication unit 23 may be a wired interface or a wireless interface. The network communication unit 23 functions as a network communication means for the base station device 20. The network communication unit 23 communicates with other devices according to the control of the control unit 24.

The control unit 24 is a controller that controls each unit of the base station device 20. The control unit 24 is realized by, for example, a processor such as a CPU (Central Processing Unit) or an MPU (Micro Processing Unit). For example, the control unit 24 is realized by the processor executing various programs stored in the storage device inside the base station device 20 using a RAM (Random Access Memory) or the like as a work area. The control unit 24 may be realized by an integrated circuit such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array). The CPU, MPU, ASIC, and FPGA can all be regarded as controllers.

As shown in FIG. 8, the control unit 24 includes an acquisition unit 241, a setting unit 242, a transmission unit 243, and a wireless communication control unit 244. Each block (acquisition unit 241 to wireless communication control unit 244) constituting the control unit 24 is a functional block indicating the function of the control unit 24, respectively. These functional blocks may be software blocks or hardware blocks. For example, each of the above-mentioned functional blocks may be one software module realized by software (including a microprocessor) or one circuit block on a semiconductor chip (die). Of course, each functional block may be one processor or one integrated circuit. The method of configuring the functional block is arbitrary. The control unit 24 may be configured in a functional unit different from the above-mentioned functional block.

Each block (acquisition unit 241 to wireless communication control unit 244) constituting the control unit 24 may operate as follows, for example.

For example, the transmission unit 243 is an acquisition unit that acquires information on a grant usage mode for a communication device that uses radio waves in the frequency band used by the first wireless system to use the radio waves, and information on the grant usage mode. Requests the grant and transmits information on the usage mode of the grant to the communication control device 40 including the processing unit that performs the processing related to the grant based on the above. Then, the wireless communication control unit 244 controls the wireless communication unit 21 based on the grant given by the communication control device 40 based on the request of the grant.

The operation of each block (acquisition unit 241 to wireless communication control unit 244) constituting the control unit 24 will be described later.

<2-3. Terminal device configuration>
Next, the configuration of the terminal device 30 will be described. FIG. 9 is a diagram showing a configuration example of the terminal device 30 according to the embodiment of the present disclosure. The terminal device 30 is a communication device that wirelessly communicates with the base station device 20 and / or the communication control device 40. In the present embodiment, the concept of a communication device (or wireless communication device) includes not only a base station device and a proxy device but also a terminal device. A communication device (or wireless communication device) can be rephrased as a wireless system.

The terminal device 30 includes a wireless communication unit 31, a storage unit 32, an input / output unit 33, and a control unit 34. The configuration shown in FIG. 9 is a functional configuration, and the hardware configuration may be different from this. Further, the functions of the terminal device 30 may be distributed and implemented in a plurality of physically separated configurations.

The wireless communication unit 31 is a wireless communication interface that wirelessly communicates with other communication devices (for example, the base station device 20 and the other terminal device 30). The wireless communication unit 31 operates according to the control of the control unit 34. The wireless communication unit 31 corresponds to one or a plurality of wireless access methods. For example, the wireless communication unit 31 corresponds to both NR and LTE. The wireless communication unit 31 may support other wireless access methods such as W-CDMA and cdma2000.

The wireless communication unit 31 includes a reception processing unit 311, a transmission processing unit 312, and an antenna 313. The wireless communication unit 31 may include a plurality of reception processing units 311 and transmission processing units 312, and a plurality of antennas 313, respectively. When the wireless communication unit 31 supports a plurality of wireless access methods, each unit of the wireless communication unit 31 may be individually configured for each wireless access method. For example, the reception processing unit 311 and the transmission processing unit 312 may be individually configured by LTE and NR. The configurations of the reception processing unit 311 and the transmission processing unit 312 are the same as those of the reception processing unit 211 and the transmission processing unit 212 of the base station apparatus 20.

The storage unit 32 is a data-readable / writable storage device such as a DRAM, SRAM, flash memory, and hard disk. The storage unit 32 functions as a storage means for the terminal device 30.

The input / output unit 33 is a user interface for exchanging information with the user. For example, the input / output unit 33 is an operation device for the user to perform various operations such as a keyboard, a mouse, operation keys, and a touch panel. Alternatively, the input / output unit 33 is a display device such as a liquid crystal display (Liquid Crystal Display) or an organic EL display (Organic Electroluminescence Display). The input / output unit 33 may be an audio device such as a speaker or a buzzer. Further, the input / output unit 33 may be a lighting device such as an LED (Light Emitting Diode) lamp. The input / output unit 33 functions as an input / output means (input means, output means, operation means, or notification means) of the terminal device 30.

The control unit 34 is a controller that controls each unit of the terminal device 30. The control unit 34 is realized by, for example, a processor such as a CPU or MPU. For example, the control unit 34 is realized by the processor executing various programs stored in the storage device inside the terminal device 30 with the RAM or the like as a work area. The control unit 34 may be realized by an integrated circuit such as an ASIC or FPGA. The CPU, MPU, ASIC, and FPGA can all be regarded as controllers.

<2-4. Communication control device configuration>
The communication control device 40 is a device that controls wireless communication of the base station device 20. The communication control device 40 may control the wireless communication of the terminal device 30 via the base station device 20 or directly. The communication control device 40 may be a network manager that integrally controls wireless devices in the network. For example, the communication control device 40 may be a Spectram Manager / Coexistence Manager. Further, the communication control device 40 may be a database server such as GLDB (Geolocation database) or SAS (Spectrum Access System).

If the communication system 2 is a cellular communication system, the communication control device 40 may be a device that constitutes a core network. The core network CN is, for example, EPC (Evolved Packet Core) or 5GC (5G Core network). If the core network is an EPC, the communication control device 40 may be, for example, a device having a function as an MME (Mobility Management Entity). Further, if the core network is 5GC, the communication control device 40 may be, for example, a device having a function as an AMF (Access and Mobility Management Function). Even if the communication system 2 is a cellular communication system, the communication control device 40 does not necessarily have to be a device that constitutes a core network. For example, the communication control device 40 may be a device having a function as an RNC (Radio Network Controller).

The communication control device 40 may have a gateway function. For example, if the core network is an EPC, the communication control device 40 may be a device having a function as an S-GW (Serving Gateway) or a P-GW (Packet Data Network Gateway). Further, if the core network is 5GC, the communication control device 40 may be a device having a function as an UPF (User Plane Function). The communication control device 40 does not necessarily have to be a device that constitutes the core network. For example, assume that the core network is a W-CDMA or cdma2000 core network. At this time, the communication control device 40 may be a device that functions as an RNC (Radio Network Controller).

Further, the communication control device 40 may be a system that controls a plurality of secondary systems. In this case, the communication system 2 can be regarded as a system including a plurality of secondary systems.

FIG. 10 is a diagram showing a configuration example of the communication control device 40 according to the embodiment of the present disclosure. The communication control device 40 includes a wireless communication unit 41, a storage unit 42, a network communication unit 43, and a control unit 44. The configuration shown in FIG. 10 is a functional configuration, and the hardware configuration may be different from this. Further, the functions of the communication control device 40 may be distributed and implemented in a plurality of physically separated configurations. For example, the communication control device 40 may be composed of a plurality of server devices.

The wireless communication unit 41 is a wireless communication interface that wirelessly communicates with other communication devices (for example, a base station device 20, a terminal device 30, a proxy device 50, and another communication control device 40). The wireless communication unit 41 operates according to the control of the control unit 44. The wireless communication unit 31 corresponds to one or a plurality of wireless access methods. For example, the wireless communication unit 31 corresponds to both NR and LTE. The wireless communication unit 31 may support other wireless access methods such as W-CDMA and cdma2000. The configuration of the wireless communication unit 41 is the same as that of the wireless communication unit 21 of the base station device 20.

The storage unit 42 is a data-readable / writable storage device such as a DRAM, SRAM, flash memory, and hard disk. The storage unit 22 functions as a storage means for the base station device 20. The storage unit 22 stores the operation parameters of each of the plurality of base station devices 20 constituting the communication system 2. The storage unit 22 may store the possessed resource information of each of the plurality of base station devices 20 constituting the communication system 2. As described above, the possessed resource information is the information regarding the possession of the radio resource of the base station apparatus 20. The communication control device 40 may store information in the file server 60.

The network communication unit 43 is a communication interface for communicating with other devices (for example, the base station device 20, the proxy device 50, and the other communication control device 40). The network communication unit 43 may be a network interface or a device connection interface. For example, the network communication unit 43 may be a LAN (Local Area Network) interface such as a NIC (Network Interface Card). Further, the network communication unit 43 may be a USB interface composed of a USB (Universal Serial Bus) host controller, a USB port, and the like. Further, the network communication unit 43 may be a wired interface or a wireless interface. The network communication unit 43 functions as a communication means of the communication control device 40. The network communication unit 43 communicates with the base station device 20, the terminal device 30, and the proxy device 50 under the control of the control unit 44.

The control unit 44 is a controller that controls each unit of the communication control device 40. The control unit 44 is realized by, for example, a processor such as a CPU or MPU. For example, the control unit 44 is realized by the processor executing various programs stored in the storage device inside the communication control device 40 using the RAM or the like as a work area. The control unit 44 may be realized by an integrated circuit such as an ASIC or FPGA. The CPU, MPU, ASIC, and FPGA can all be regarded as controllers. For example, the control unit 44 controls the operation related to the grant by communicating with the base station device 20, the terminal device 30, and the proxy device 50 via the network communication unit 43.

As shown in FIG. 10, the control unit 44 includes an acquisition unit 441, a determination unit 442, a notification unit 443, and a communication control unit 444. Each block (acquisition unit 441 to communication control unit 444) constituting the control unit 44 is a functional block indicating the function of the control unit 44, respectively. These functional blocks may be software blocks or hardware blocks. For example, each of the above-mentioned functional blocks may be one software module realized by software (including a microprocessor) or one circuit block on a semiconductor chip (die). Of course, each functional block may be one processor or one integrated circuit. The method of configuring the functional block is arbitrary. The control unit 44 may be configured in a functional unit different from the above-mentioned functional block.

Each block (acquisition unit 441 to communication control unit 444) constituting the control unit 44 may operate as follows, for example.

The acquisition unit 441 is a processing unit that acquires various information in, for example, an operation related to a grant by communicating with the base station device 20, the terminal device 30, and the proxy device 50. For example, the acquisition unit 441 acquires information on the usage mode of the grant for the second radio system to secondarily use the frequency band used by the first radio system.

As an example, the acquisition unit 441 acquires the position information of the terminal device 30. In addition, the acquisition unit 441 acquires area information (movement prediction range information) indicating the predicted movement area 301 in which the terminal device 30 is predicted to move.

The determination unit 442 performs frequency use permission processing and area determination processing in response to a request (frequency use permission, frequency use notification, etc.) from the second radio system that secondarily uses the frequency band used by the first radio system. It is a processing unit that determines whether or not secondary use is possible (details will be described later). For example, the determination unit 442 uses the terminal device 30 for the secondary use of the frequency band used by the primary system by the terminal device 30 based on the area information and the position information acquired by the acquisition unit 441 (hereinafter, “2 of the primary system”). It is called "next use").

The notification unit 443 responds to a request (frequency usage permission, frequency usage notification, etc.) from the second wireless system that secondarily uses the frequency band used by the first wireless system according to the determination result of the determination unit 442. It is a processing unit that notifies (details will be described later). For example, the notification unit 443 notifies the terminal device 30 of the availability of the secondary use of the primary system by the terminal device 30, which is determined by the determination unit 442, as a response.

The communication control unit 444 is a processing unit that controls communication with the base station device 20, the terminal device 30, and the proxy device 50. For example, the communication control unit 444 controls the frequency usage notification interval and the like (details will be described later).

The operation of each block (acquisition unit 441 to communication control unit 444) constituting the control unit 44 will be described later.

Further, the control unit 44 selects and selects one from a plurality of primary system protection methods including a dynamic or static protection method based on the usage pattern and usage position information of the radio station of the primary system. It functions as a processing unit that protects the radio station of the primary system based on the protection method.

For example, the control unit 44 selects and implements one of the static protection methods when the radio station is planned use, and selects one of the dynamic protection methods when the radio station is used unscheduled. And carry out.

For example, the control unit 44 selects and implements point protection based on the protection target point of the radio station, which is determined based on the usage position information of the radio station, and is determined based on the usage position information of the radio station. Area protection is selected and implemented based on the protected area of the radio station.

Further, the control unit 44 predicts the protected point and the protected area when the protected point and the protected area are not included in the usage schedule of the radio station and when the protected point and the protected area are newly set. Functions as a processing unit.

For example, the control unit 44 predicts the protection target point and the protection target area based on the usage position information of the second radio station different from the first radio station which is the radio station of the primary system.

For example, the control unit 44 calculates the communication quality when the signal of the first radio station is received by the second radio station based on the usage position information of the second radio station, and is based on the calculated communication quality. To predict the protected points and protected areas.

For example, the control unit 44 predicts the protection target point and the protection target area based on the antenna information of the antenna used in the second radio station.

For example, the control unit 44 predicts the protection target point and the protection target area based on the usage position information of the third radio station of the radio system different from the primary system.

For example, the control unit 44 determines the communication quality when the signal of the third radio station is received by the first radio station, which is the radio station of the primary system, based on the usage position information of the third radio station. calculate. The control unit 44 predicts the usage position information of the third radio station based on the calculated communication quality, and uses the predicted position information as a protection target point or a protection target area.

For example, the control unit 44 uses the usage position information of the third radio station as the usage position information of the fourth radio station, which is the radio station of the primary system, and uses the signal of the fifth radio station, which is the radio station of the primary system, as the usage position information. The communication quality received by the fourth radio station is calculated. The control unit 44 predicts the protection target point and the protection target point of the fifth radio station based on the calculated communication quality.

For example, the control unit 44 predicts the usage position information of the radio station of the primary system based on the antenna information of the antenna used in the third radio station.

Further, the control unit 44 functions as a processing unit that determines a plurality of areas obtained by dividing the protected area according to a certain standard into dynamic protected areas.

For example, the control unit 44 determines the dynamic protection target area obtained by dividing the protection target area into a plurality of areas using parameters set based on the usage detection accuracy of the radio station.

For example, the control unit 44 determines a dynamic protection target area in which the protection target area is divided into a plurality of areas by using parameters set based on the detection accuracy of the primary system and the position information accuracy of the primary system.

For example, the control unit 44 determines a dynamic protection target area in which the protection target area is divided into a plurality of areas by using a parameter set based on the fluctuation of the position information accuracy due to the surrounding environment.

For example, the control unit 44 determines a dynamic protection target area in which the protection target area is divided into a plurality of areas by using a parameter set based on the arrangement information of the detection unit that detects the primary system.

For example, the control unit 44 determines dynamically protected areas of different sizes in the same area.

For example, the control unit 44 determines a dynamic protection target area in which the protection target area is divided into a plurality of areas using parameters set based on the positioning function accuracy of the radio station of the radio system different from the primary system. ..

For example, the control unit 44 divides the entire moving area of the radio station into a plurality of areas, and determines the protection target area set for the communication target radio station in each of the divided areas as the dynamic protection target area.

Further, the control unit 44 functions as a processing unit for determining a protection target point or a protection target area by setting the protection target antenna direction at regular intervals within the rotation range of the antenna being used in the radio station.

For example, the control unit 44 sets the two-dimensional protection target antenna direction by dividing the range of the horizontal direction in which the antenna rotates during use at a constant angle.

For example, the control unit 44 sets the three-dimensional protection target antenna direction by dividing the range of the horizontal direction and the range of the tilt angle during use of the antenna by a constant angle.

For example, the control unit 44 predicts the rotation range of the antenna in use by using the protected area or the protected point of the radio station as the communication partner.

For example, the control unit 44 sets the angle formed by the two tangents drawn from the radio station to the protected area of the radio station as the communication partner as the range of the horizontal direction in which the antenna in use rotates. ..

For example, the control unit 44 projects the protected area of the radio station to be communicated with the sphere centered on the radio station of the primary system, and the antenna takes the projected area on the spherical surface during use. The range of the horizontal orientation and tilt angle to be obtained.

For example, the control unit 44 changes the interval when setting the direction of the antenna to be protected according to the computing power of its own machine.

Further, the control unit 44 is a processing unit that selects dynamic point protection or dynamic area protection by using a dynamic antenna rotation range in which the rotation range of the antenna that can be taken by the antenna of the radio station is divided by a certain standard. Functions as.

For example, the control unit 44 sets a plurality of protected antenna directions within the dynamic antenna rotation range.

For example, the control unit 44 sets the two-dimensional dynamic antenna rotation range by dividing the range of the antenna in the horizontal direction that may be used in the horizontal direction at a constant angle.

For example, the control unit 44 sets the three-dimensional dynamic antenna rotation range by dividing the range of the horizontal direction and the range of the tilt angle during use of the antenna by a constant angle.

For example, the control unit 44 sets the dynamic antenna rotation range using the antenna rotation range that may be used, which is predicted from the information of another radio station that can be a communication partner.

For example, the control unit 44 sets the dynamic antenna rotation range using the parameters set based on the detection accuracy of the antenna direction when the radio station is used.

For example, the control unit 44 sets the dynamic antenna rotation range using the parameters set based on the detection accuracy of the antenna direction by the detection unit that detects the antenna direction.

For example, the control unit 44 sets two or more dynamic antenna rotation ranges having different division sizes in the antenna rotation range that may be used.

<2-5. Proxy device configuration>
Next, the configuration of the proxy device 50 will be described. FIG. 11 is a diagram showing a configuration example of the proxy device 50 according to the embodiment of the present disclosure. The proxy device 50 is a communication device that communicates with the base station device 20 and the communication control device 40. The proxy device 50 is a proxy system that communicates with the communication control device 40 on behalf of (representatively) one or a plurality of base station devices 20. For example, the proxy device 50 is a domain proxy (DP: Domain Proxy) that represents (represents) a plurality of CBSDs.

The proxy system may be composed of one device or a plurality of devices. The communication between the proxy device 50 and the base station device 20 may be wired communication or wireless communication. Similarly, the communication between the proxy device 50 and the communication control device 40 may be wired communication or wireless communication.

The communication device represented (represented) by the proxy device 50 is not limited to the base station device 20, and may be, for example, the terminal device 30. In the following description, one or more communication devices (for example, one or more base station devices 20) represented (represented) by the proxy device 50 are referred to as subordinate communication devices (for example, subordinate base station devices 20). Sometimes.

The proxy device 50 includes a wireless communication unit 51, a storage unit 52, a network communication unit 53, and a control unit 54. The configuration shown in FIG. 10 is a functional configuration, and the hardware configuration may be different from this. Further, the functions of the proxy device 50 may be distributed and implemented in a plurality of physically separated configurations.

The wireless communication unit 51 is a wireless communication interface that wirelessly communicates with other communication devices (for example, a base station device 20, a terminal device 30, a communication control device 40, and another proxy device 50). The wireless communication unit 51 operates according to the control of the control unit 54. The wireless communication unit 51 corresponds to one or a plurality of wireless access methods. For example, the wireless communication unit 31 corresponds to both NR and LTE. The wireless communication unit 51 may support other wireless access methods such as W-CDMA and cdma2000.

The storage unit 52 is a data-readable / writable storage device such as a DRAM, SRAM, flash memory, and hard disk. The storage unit 52 functions as a storage means for the proxy device 50. The storage unit 22 may store desired transmission power information, operating parameters, possessed resource information, and the like of each of the subordinate base station devices 20.

The network communication unit 53 is a communication interface for communicating with other devices (for example, the base station device 20, the communication control device 40, and the other proxy device 50). For example, the network communication unit 53 is a LAN interface such as a NIC. The network communication unit 53 may be a USB interface composed of a USB host controller, a USB port, and the like. Further, the network communication unit 53 may be a wired interface or a wireless interface. The network communication unit 53 functions as a network communication means of the proxy device 50. The network communication unit 53 communicates with other devices according to the control of the control unit 54.

The control unit 54 is a controller that controls each unit of the proxy device 50. The control unit 54 is realized by, for example, a processor such as a CPU (Central Processing Unit) or an MPU (Micro Processing Unit). For example, the control unit 54 is realized by the processor executing various programs stored in the storage device inside the proxy device 50 using a RAM (Random Access Memory) or the like as a work area. The control unit 24 may be realized by an integrated circuit such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array). The CPU, MPU, ASIC, and FPGA can all be regarded as controllers.

As shown in FIG. 11, the control unit 54 includes an acquisition unit 541, a first transmission unit 542, and a second transmission unit 543. Each block (acquisition unit 541 to the second transmission unit 543) constituting the control unit 54 is a functional block indicating the function of the control unit 54, respectively. These functional blocks may be software blocks or hardware blocks. For example, each of the above-mentioned functional blocks may be one software module realized by software (including a microprocessor) or one circuit block on a semiconductor chip (die). Of course, each functional block may be one processor or one integrated circuit. The method of configuring the functional block is arbitrary. The control unit 54 may be configured in a functional unit different from the above-mentioned functional block.

Each block (acquisition unit 541 to the second transmission unit 543) constituting the control unit 54 may operate as follows, for example.

For example, the first transmission unit 542 requests the grant on behalf of the communication device (for example, the base station device 20) under the communication control device 40, and transmits information on the usage mode of the grant. Then, the first transmission unit 542 notifies the subordinate communication device (for example, the base station device 20) of the information regarding the grant given from the communication control device 40 based on the grant request. The communication control device 40 includes an acquisition unit and a processing unit. The acquisition unit acquires information on the usage mode of the grant for the communication device using the radio wave of the frequency band used by the first wireless system to secondarily use the frequency band. The processing unit performs processing related to the grant based on the information regarding the usage mode of the grant.

The operation of each block (acquisition unit 541 to the second transmission unit 543) constituting the control unit 54 is the operation of each block (acquisition unit 241 to transmission unit 243) constituting the control unit 24 of the base station apparatus 20. May be the same as. For example, the acquisition unit 541 may be the same as the acquisition unit 241 and the first transmission unit 542 and the second transmission unit 543 may be the same as the transmission unit 243. The description of the acquisition unit 241 appearing in the following description can be replaced with the acquisition unit 541, and the description of the transmission unit 243 can be replaced with the first transmission unit 542 and the second transmission unit 543.

<< 3. Interference model >>
Next, the interference model assumed in this embodiment will be described. FIG. 12 is an explanatory diagram showing an example of an interference model assumed in the embodiment of the present disclosure. The description of the base station device 20 that appears in the following description can be replaced with a word indicating another communication device having a wireless communication function.

The interference model shown in FIG. 12 is applied, for example, when the primary system has a service area. In the example of FIG. 12, the communication system 1 (primary system) is a wireless communication system having a service area. This service area becomes, for example, a protected area of the communication system 1. A plurality of interference calculation reference points (hereinafter referred to as protection points) are set in the protection area. The protection point is set, for example, by the operator of the communication system 1 or a public institution that manages radio waves (hereinafter, referred to as an administrator). For example, the administrator may divide the protected area in a grid pattern and use the center of a predetermined grid as a protection point. The method of determining the protection point is arbitrary. The interference margin of each protection point is set by the administrator or the like. FIG. 12 shows the interference that the plurality of base station devices 20 constituting the communication system 2 (secondary system) give to the protection points. The communication control device 40 of the communication system 2 controls the transmission power of the plurality of base station devices 20 so that the cumulative interference at each protection point does not exceed the set interference margin.

FIG. 13 is an explanatory diagram showing another example of the interference model assumed in the embodiment of the present disclosure. The interference model shown in FIG. 13 is applied, for example, when the primary system performs only reception. In the example of FIG. 13, the communication system 1 (primary system) has a receiving antenna as the wireless communication device 102. The wireless communication device 102 is, for example, a receiving antenna of a satellite ground station. The communication control device 40 of the communication system 2 uses the position of the receiving antenna as a protection point, and controls the transmission power of the plurality of base station devices 20 so that the cumulative interference at that point does not exceed the interference margin.

<< 4. Primary system protection method >>
Next, the primary system protection method will be described. As described above, the primary system protection method can be classified into the following two types, for example.
(1) Interference margin simultaneous distribution type (2) Interference margin sequential distribution type

As an example of the interference margin simultaneous distribution type primary system protection method, for example, a method disclosed in Non-Patent Document 3 (for example, a method for calculating the maximum allowable EIRP) can be mentioned. Further, as an example of the interference margin sequential allocation type primary system protection method, for example, the sequential allocation process (IAP: Iterative Allocation Process) disclosed in Non-Patent Document 6 can be mentioned.

Hereinafter, the "interference margin simultaneous distribution type" primary system protection method and the "interference margin sequential distribution type" prime system protection method will be described. The description of the base station device 20 that appears in the following description can be replaced with a word indicating another communication device having a wireless communication function.

<4-1. Interference margin simultaneous distribution type>
First, the interference margin simultaneous distribution type primary system protection method will be described. FIG. 14 is an explanatory diagram for explaining a primary system protection method of the interference margin simultaneous distribution type. As described above, in the interference margin simultaneous distribution type, the communication control device 40 calculates the maximum allowable transmission power of the secondary system using "a value uniquely obtained by the positional relationship between the protection reference point of the primary system and the secondary system" as a reference value. do. In the example of FIG. 14, the allowable interference threshold of the primary system is I _accident . This threshold value may be an actual threshold value, or may be a value set by considering a certain margin (for example, Protection Ratio) from the actual threshold value in consideration of calculation error and interference fluctuation.

In the interference margin simultaneous distribution type primary system protection method, interference control means determining the transmission power (EIRP, Conducted Power + Antenna gain, etc.) of the radio device so as not to exceed the allowable interference threshold. At this time, if there are many base station devices 20 and each of them does not exceed the allowable interference threshold value, the interference power received in the communication system 1 (primary system) may exceed the allowable interference threshold value. .. Therefore, the interference margin (allowable interference amount) is "allocated" based on the number of base station devices 20 registered in the communication control device 40.

For example, in the example of FIG. 14, the total number of base station devices 20 is 5. Therefore, the permissible interference amount of _{I accident / 5 is distributed to each individual.} Since the base station device 20 cannot recognize this distribution amount by itself, it recognizes it through the communication control device 40 or acquires the transmission power determined based on this distribution amount. Since the communication control device 40 cannot recognize the number of wireless devices managed by the other communication control device 40, the total number can be recognized and the allowable interference amount can be distributed by exchanging information with each other. Will be. For example, the allowable interference quantity of _{3I the accept} / 5 is assigned by the communication control unit 40 within _1.

In this method, the interference margin not used by the base station apparatus 20 can be a residual interference margin. FIG. 15 is a diagram showing a state in which a residual interference margin is generated. FIG. 15 shows the total amount of interference set for each of the _two communication control devices 40 (communication control devices 40 ₁ , 402). Further, in FIG. 15, the amount of interference (interference given) given to a predetermined protection point of the communication system 1 by a plurality of base station devices 20 (base station devices 20 _{1 to 25) under the control of the two communication control devices 40.} Amount) is shown. The amount of interference obtained by subtracting the amount of interference by the base station device 20 from the total amount of interference of each of the two communication control devices 40 is the residual interference margin. In the following description, the surplus interference amount is referred to as a surplus interference margin. The residual interference margin can be rephrased as the amount of residual interference.

<4-2. Interference margin sequential distribution type>
Next, an interference margin sequential distribution type primary system protection method will be described. As described above, in the interference margin sequential distribution type, the communication control device 40 calculates the maximum allowable transmission power of the secondary system with the “desired transmission power of the secondary system” as a reference value. FIG. 16 is an explanatory diagram for explaining an interference margin sequential distribution type primary system protection method. In the interference margin sequential distribution type, for example, each of the plurality of base station devices 20 stores desired transmission power information in the storage unit 22. The desired transmission power information is information on the transmission power required by the base station device 20 from the communication control device 40 as information on the transmission power required for transmitting radio waves. In the example of FIG. 16, the base station devices 201 to 204 each hold desired transmission power information A to D. The communication control device 40 allocates interference amounts A to D to the base station devices 201 to 204, respectively, based on the desired transmission power information A to D.

<< 5. Explanation of various procedures >>
Next, various procedures that may occur between the entities of the communication system 2 will be described. The description of the base station device 20 that appears in the following description can be replaced with a word indicating another communication device having a wireless communication function.

<5-1. Registration Procedure>
The registration procedure is a procedure for registering device parameters related to the base station device 20 and the like in the communication control device 40. Typically, the base station device 20 or one or more communication systems including the plurality of base station devices 20 start the registration procedure by notifying the communication control device 40 of a registration request including the device parameters. The registration request may be transmitted by a communication system (for example, a proxy system such as a proxy device 50) representing (representing) one or a plurality of base station devices 20.

In the following description, it is assumed that the communication system representing (representing) a plurality of base station devices 20 is the proxy device 50, but the word of the proxy device 50 appearing in the following description is another communication such as a proxy system. It can be replaced with a word indicating a communication system that represents (represents) the device.

(Details of required parameters)
The device parameter refers to, for example, the information shown below.
Communication device-specific information Location information Antenna information Wireless interface information Legal information Installer information Other information may be treated as device parameters when implementing.

The information unique to the communication device includes information that can identify the base station device 20, information about the hardware of the base station device 20, and the like. For example, a serial number, a product model number, etc. may be included.

The information that can identify the base station device 20 refers to communication device user information, communication device serial number, and the like. For example, a user ID, a call sign, or the like can be assumed as the communication device user information. The user ID may be independently generated by the communication device user, or may be issued in advance by the communication control device 40.

Information about the hardware of the base station apparatus 20 may include, for example, transmission power class information, manufacturer information, and the like. For the transmission power class information, for example, in FCC C.F.R Part 96, two types of classes, Category A and Category B, are defined, and any information may be included. In addition, some classes of eNodeB and gNodeB are specified in 3GPP TS 36.104 and TS 38.104, and these can also be used.

The information about the software of the base station device 20 may include, for example, version information and a build number related to an execution program in which the processing necessary for interaction with the communication control device 40 is described. In addition, software version information and a build number for operating as the base station apparatus 20 may also be included.

The location-related information is typically information that can identify the geographic location of the base station apparatus 20. For example, it is coordinate information acquired by a positioning function represented by GPS (Global Positioning System), Beidou, QZSS (Quasi-Zenith Satellite System), Galileo and A-GPS (Assisted Global Positioning System). Typically, it may include information about latitude, longitude, altitude, and positioning error. Alternatively, for example, it may be location information registered in an information management device managed by NRA (National Regulatory Authority) or its consignment organization. Alternatively, for example, the coordinates may be the X-axis, Y-axis, and Z-axis having a specific geographic position as the origin. Further, an identifier indicating outdoor / indoor can be given together with such coordinate information.

Further, the information related to the position may be information indicating the area where the base station device 20 is located. For example, information determined by the government, such as a zip code and an address, may be used. Also, for example, a region may be indicated by a set of three or more geographic coordinates. Information indicating these regions may be provided together with the above coordinate information.

Further, information indicating the floor of the building may be added to the information related to the position when the base station device 20 is located indoors. For example, an identifier indicating the number of floors, above ground / underground, or the like may be assigned. Further, for example, information indicating a further closed space indoors may be added, such as a room number and a room name in the building.

It is desirable that the positioning function is typically provided by the base station apparatus 20. However, depending on the performance of the positioning function and the installation position, it is not always possible to acquire position information that satisfies the required accuracy. Therefore, the positioning function may be used by the installer. In such a case, it is desirable that the position information measured by the installer is written in the base station apparatus 20.

The antenna information is typically information indicating the performance, configuration, and the like of the antenna included in the base station apparatus 20. Typically, it may include information such as antenna installation height, down tilt, horizontal orientation (Azimuth), aiming (Boresight), antenna peak gain, and antenna model.

The antenna information may also include information about the beam that can be formed. For example, information such as beam width, beam pattern, and analog / digital beamforming capabilities can be included.

In addition, the antenna information may include information on the performance and configuration of MIMO (Multiple Input Multiple Output) communication. For example, information such as the number of antenna elements and the maximum number of spatial streams may be included. In addition, codebook information to be used, unitary matrix obtained by weight matrix information (SVD (Singular Value Decomposition), EVD (Eigen Value Decomposition), BD (Block Diagonalization), etc., ZF (Zero-Forcing) matrix, MMSE (Minimum Mean Square Error) matrix) etc. can also be included. Further, when MLD (Maximum Likelihood Detection) or the like requiring non-linear calculation is provided, information indicating the MLD (Maximum Likelihood Detection) or the like may be included.

The antenna information may include ZoD (Zenith of Direction, Departure). The ZoD is a kind of radio wave arrival angle. The ZoD may be estimated by another base station device 20 from radio waves radiated from the antenna of the base station device 20. In this case, the base station device 20 may be a terminal device that operates as a base station or an access point, a device that performs D2D communication, a moving relay base station, or the like. ZooD can be estimated by a radio wave arrival direction estimation technique such as MUSIC (Multiple Signal Classification) or ESPRIT (Estimation of Signal Propagation via Rotation Invariance Techniques). It can be used by the communication control device 40 as measurement information.

The wireless interface information is typically information indicating the wireless interface technology included in the base station apparatus 20. For example, technologies used in GSM®, CDMA2000, UMTS, E-UTRA, 5G NR (5G New Radio) or further next-generation cellular systems, and LTE-compliant derivatives such as MultFire and LTE-U (LTE-Unlicensed). It includes identifier information indicating standard technology such as technology, MAN (Metropolitan Area Network) such as WiMAX and WiMAX2 +, and wireless LAN of LTE 802.11 system. In addition, the version number or release number of the technical specification that defines these may also be assigned. It does not necessarily have to be a standard technology and may include information indicating proprietary wireless technology.

The wireless interface information may also include frequency band information supported by the base station apparatus 20. For example, it can be represented by one or more combinations of upper and lower frequency frequencies, one or more combinations of center frequencies and bandwidths, or one or more 3GPP Operating Band numbers.

The frequency band information supported by the base station apparatus 20 may also include capability information of carrier aggregation (CA) and channel bonding (Channel Bonding). For example, it may include band information that can be combined. In addition, carrier aggregation may include information on the band to be used as a primary component carrier (PCC) or a secondary component carrier (SCC). It may also include the number of CCs that can be aggregated at the same time.

As the frequency band information supported by the base station apparatus 20, information indicating the radio wave utilization priority such as PAL and GAA may be included.

The wireless interface information may also include modulation scheme information supported by the base station apparatus 20. For example, as typical examples, FSK (Frequency Shift Keying), n-value PSK (Phase Shift Keying) (n is 2, 4, 8, etc.) and n-value QAM (Quadrature Amplitude Modulation) (n is 4, 16, 64, etc.) , 256, etc.) and information indicating secondary modulation methods such as OFDM (Orthogonal Frequency Division Multiplexing), DFT-s-OFDM (DFT spread OFDM), and FBMC (Filter Bank Multi Carrier) are included. sell.

The wireless interface information may also include information about the error correction code. For example, it may include capabilities such as a Turbo code, an LDPC (Low Density Parity Check) code, and a Polar code, and code rate information to be applied.

The modulation method information and the information regarding the error correction code can be expressed by an MCS (Modulation and Coding Scheme) index as another aspect.

In addition, the wireless interface information may include information indicating a function peculiar to each wireless technology supported by the base station apparatus 20. For example, TM (Transmission Mode) information defined by LTE can be mentioned as a typical example. In addition to this, those having two or more modes for a specific function can be included in the wireless interface information as in the above TM. Further, in the technical specifications, when the base station apparatus 20 supports a function that is not essential in the specifications even if two or more modes do not exist, information indicating this may be included.

The radio interface information may also include radio access technology (RAT) information supported by the base station apparatus 20. For example, TDMA (Time Division Multiple Access), FDMA (Frequency Division Multiple Access), OFDMA (Orthogonal Frequency Division Multiple Access) and other Orthogonal Multiple Access (OMA), PDMA (Power Division Multiple Access, Superposition Coding (SPC)). ) And Successive Interference Canceller (SIC) are typical examples), CDMA (Code Division Multiple Access), SMACA (Sparse Code Multiple Access), IDMA (Interleaver Division Multiple Access), SDMA (Spatial Division Multiple) Opportunistic Access such as Non Orthogonal Multiple Access (NOMA), CSMA / CA (Carrier Sense Multiple Access / Collision Avoidance) and CSMA / CD (Carrier Sense Multiple Access / Collision Detection) ) Etc. may be included.

The wireless interface information may also include information related to the duplex mode supported by the base station apparatus 20. As a typical example, FDD (Frequency Division Duplex), TDD (Time Division Duplex), and FD (Full Duplex) can be included. When TDD is included as the radio interface information, TDD Frame Configuration information used / supported by the base station apparatus 20 may be added. In addition, information related to the duplex mode may be included for each frequency band indicated by the above frequency band information.

The wireless interface information may also include information about the transmission diversity method supported by the base station apparatus 20. For example, space-time coding (STC) may be included.

The wireless interface information may also include guard band information. For example, it may contain information about the standard guard band size. Alternatively, for example, information regarding the guard band size desired by the base station apparatus 20 may be included.

Legal information is typically information on regulations that the base station device 20 must comply with, which is set by the radio wave administration agency of each country / region or an agency equivalent thereto, and the information acquired by the base station device 20. It is authentication information and so on. The information regarding the above regulation may typically include, for example, information on the upper limit of out-of-band radiation, information on the blocking characteristics of the receiver, and the like. The above-mentioned certification information typically includes, for example, type approval information (FCC ID, technical standard conformity certification, etc.), legal and regulatory information (for example, FCC rule number, ETSI Harmonized Standard number, etc.) that is the basis for obtaining certification. ) Etc. may be included.

Of the legal information, for numerical values, the information specified in the wireless interface technology standard may be substituted. For example, instead of the upper limit value information of out-of-band radiation, the upper limit value of out-of-band radiation may be derived and used by using the adjacent channel leakage ratio (ACLR). Moreover, if necessary, ACLR itself may be used. Also, Adjacent Channel Selectivity (ACS) may be used instead of the blocking characteristic. Further, these may be used in combination, or an adjacent channel interference ratio (ACIR) may be used.

The installer information may include information that can identify the person (installer) who installed the base station device 20, information unique to the installer, and the like. For example, Non-Patent Document 2 discloses CPIR-ID (Certified Professional Installer Registration ID) and CPI name as information that can identify the installer. Further, as unique information associated with the installer, for example, a contact address (Mailing / Contact address), an e-mail address, a telephone number, a PKI (Public Key Identifier), and the like are disclosed. Not limited to these, other information about the installer may be included as needed.

[Supplement of required parameters]
In the registration procedure, it is assumed that, depending on the embodiment, it is required to register not only the base station device 20 but also the device parameters related to the terminal device 30 in the communication control device 40. In such a case, the term "communication device" in the explanation described above (details of required parameters) may be replaced with a term "terminal device" or a term equivalent thereto. In addition, parameters specific to the "terminal device" not described in the above (details of required parameters) may be treated as required parameters in the registration procedure. For example, a UE (User Equipment) Category defined by 3GPP can be mentioned.

[Details of registration process]
FIG. 17 is a sequence diagram for explaining the registration procedure. The base station device 20 or one or more communication systems including the plurality of base station devices 20 generate a registration request message using the device parameters (step S11) and notify the communication control device 40 (step S12). The proxy device 50 may generate and / or notify the message.

Here, when the device parameter includes the installer information, the registration request may be processed to prevent tampering by using this information. In addition, a part or all of the information included in the registration request may be encrypted. Specifically, for example, a process in which a public key peculiar to the installer is shared in advance between the installer and the communication control device 40, and the installer encrypts the information using the private key. Can be implemented. Examples of the encryption target include security-sensitive information such as location information.

Further, as for the position information, as disclosed in Non-Patent Document 2, for example, the installer may directly write in the communication control device 40.

After receiving the registration request, the communication control device 40 executes the registration process of the base station device 20 (step S13), and returns a registration response according to the processing result (step S14). If the information required for registration is insufficient or abnormal, the communication control device 40 records the information in the storage unit 42 and notifies the completion of normal operation. Otherwise, the communication control device 40 notifies the registration failure. When the registration is completed normally, the communication control device 40 may assign an ID to each communication device and notify the ID information by enclosing it at the time of response. If registration fails, typically one or more communication systems, including base station equipment 20 or multiple base station equipment 20, or operators (eg, mobile operators or individuals) or installers thereof. , Correct the registration request, etc., and try the registration procedure until it is completed normally.

Further, only the information specific to the communication device among the device parameters may be included in the registration request, and other information may be acquired from the radio station specification database in which the radio station information of the secondary system is stored. The radio station specification database may be managed and operated by a radio wave administration agency, a secondary system operator, or another third party agency.

The registration procedure may be executed multiple times. Specifically, the registration procedure can be re-executed when the position information is changed beyond a predetermined standard due to, for example, movement / accuracy improvement. Predetermined standards are typically set by the legal system. For example, in 47 C.F.R Part 15, the Mode II personal / portable white space device is obliged to access the database again when the location information changes by 100 meters or more.

<5-2. Available Spectrum Query Procedure>
The available frequency information inquiry procedure is a procedure in which the base station device 20, the proxy device 50, or the like inquires the communication control device 40 about information on available frequencies. Typically, the base station device 20 or the proxy device 50 or the like notifies the communication control device 40 of an inquiry request including information that can identify the base station device 20 (or the base station device 20 under the proxy device 50). By doing so, the procedure will start.

(1) Example 1
Here, the available frequency information is typically safe without causing fatal interference to the primary system at the position of the base station device 20 (or the base station device 20 under the proxy device 50). This is information indicating frequencies that can be secondarily used. For example, when the base station device 20 is installed in a secondary use prohibited area such as an exclusion zone in order to protect the primary system using the frequency channel F1, the base station device 20 is subjected to. , F1 frequency channel is not notified as an available channel.

In addition, the available frequency information includes the time when the frequency channel becomes available, which is calculated based on the primary radio station usage schedule information (usage plan) acquired from the above-mentioned radio station specification database and radio station usage schedule database. Can be included.

(2) Example 2
Further, for example, even outside the secondary use prohibited area, if it is determined to cause fatal interference to the primary system, the frequency channel may not be notified as an available channel.

(3) Example 3
In addition, there may be a frequency channel in which the available frequency information is not notified as available due to conditions other than the primary system protection requirement of Example 2. Specifically, for example, in order to avoid interference that may occur between the base station devices 20 in advance, other devices existing in the vicinity of the base station device 20 (or the base station device 20 under the proxy device 50). In some cases, the base station apparatus 20 does not notify the frequency channel in use as an available channel.

(4) Example 4
Even in these cases (Examples 2 and 3), it is possible to notify the same frequency as the primary system or the nearby base station apparatus 20 as an available channel. In such cases, the maximum permissible transmit power information is typically included in the available frequency information. The maximum allowable transmit power is typically expressed as Equivalent Isotropic Radiated Power (EIRP). It is not necessarily limited to this, and may be provided, for example, in a combination of antenna power and antenna gain. Feeder Loss may also be included. Further, as the antenna gain, an allowable peak gain may be set for each spatial direction.

[Details of required parameters]
As the information that can identify the base station device 20, for example, information unique to the communication device registered at the time of the registration procedure, ID information described in the above (details of the registration process), and the like can be assumed.

The inquiry request may also include inquiry requirement information. The inquiry requirement information may include, for example, information indicating a frequency band for which it is desired to know whether or not it is available. Also, for example, transmission power information may be included. The base station device 20 or the proxy device 50 may include the transmission power information, for example, when it is desired to know only the frequency information in which the desired transmission power can be used. It may also include, for example, information about the time at which one wants to know if the frequency band in question is available. Inquiry requirement information does not necessarily have to be included.

The inquiry request may also include a measurement report. The measurement report includes the results of the measurement performed by the base station device 20 and / or the terminal device 30. For example, it can include processed information as well as raw data. For example, standardized metrics such as RSRP (Reference Signal Received Power), RSSI (Reference Signal Strength Indicator), and RSRQ (Reference Signal Received Quality) can be used.

[Details of available frequency evaluation processing]
FIG. 18 is a sequence diagram for explaining an available frequency information inquiry procedure. The base station device 20 or the proxy device 50 generates an inquiry request including information that can identify the base station device 20 (or the base station device 20 under the proxy device 50) (step S21), and sends the communication control device 40 to the communication control device 40. Notify (step S22).

After receiving the inquiry request, the communication control device 40 evaluates the available frequency based on the inquiry requirement information (step S23). For example, as described in Examples 1 to 3 above, it is possible to evaluate the available frequency in consideration of the existence of the primary system, the prohibited area 303 for secondary use thereof, and the base station device 20 in the vicinity thereof. ..

As described in Example 4 above, the communication control device 40 may derive the maximum allowable transmission power information. Typically, the allowable interference power information in the primary system or its protection zone, the reference point information for calculating the interference power level incurred by the primary system, the registration information of the base station apparatus 20, and the propagation loss estimation. Calculated using the model. Specifically, as an example, it is calculated by the following formula.
P _{MaxTx (dBm)} = I _{Th (dBm)} + PL (d) _(dB) … (1)

_Here, the distance between _{P MaxTx (dBm)} is the maximum permitted transmission _{power, I Th (dBm)} is acceptable interference power, d is the reference position and (Reference Point) and the base station device 20, PL _{(d) (dB )} Is the propagation loss at the distance d. Although the antenna gain in the transceiver is not explicitly shown in this formula, it can be used as a reference point for the maximum allowable transmission power (EIRP, Conducted power, etc.) and reception power (antenna input point, antenna output point, etc.). May be included accordingly. In addition, a safety margin or the like for compensating for fluctuations due to fading may be included. In addition, feeder loss and the like may be considered as necessary.

Further, the above mathematical formula is described based on the assumption that the single base station device 20 is the interference source. For example, when it is necessary to consider cumulative interference from a plurality of base station devices 20 at the same time, a correction value may be added. Specifically, for example, the correction value can be determined based on the interference margin method of three types (Fixed / Predetermined, Flexible, Flexible Minimized) disclosed in Non-Patent Document 3.

Although the above mathematical formula is expressed using a logarithm, it may be converted into an antilogarithm and used as a matter of course at the time of implementation. In addition, all the parameters in logarithmic notation described in this embodiment may be appropriately converted into base numbers and used.

(1) Method 1
Further, as described in the above section (Details of required parameters), when the transmission power information is included in the inquiry requirement information, the available frequency may be evaluated by a method different from the above method. It is possible. Specifically, for example, when it is assumed that the desired transmission power indicated by the transmission power information is used, the estimated interference amount is less than the allowable interference power in the primary system or its protection zone. Is determined that the frequency channel is available, and is notified to the base station device 20 (or proxy device 50).

(2) Method 2
Although the example in which the band usage condition is calculated based on the above-mentioned other system-related information has been described, the present disclosure is not limited to such an example. For example, as in the REM (Radio Environment Map) area, when the area / space in which the base station device 20 can use the shared band is predetermined, only the position-related information and the height-related information are available. Based on this, available frequency information may be derived. Further, for example, even when a lookup table for associating the position and height with the available frequency information is prepared, the available frequency information is derived based only on the position-related information and the height-related information. You may.

The evaluation of available frequencies does not necessarily have to be performed after receiving the inquiry request. For example, after the above-mentioned registration procedure is normally completed, the communication control device 40 may independently execute the registration procedure without requesting an inquiry. In such a case, the communication control device 40 may create the REM or the look-up table exemplified in the method 2 or an information table similar to them.

In either method, the radio wave utilization priority such as PAL or GAA may be evaluated. For example, when the registered device parameter or the inquiry requirement includes information on the radio wave usage priority, it may be determined and notified whether the frequency can be used based on the priority. Further, for example, as disclosed in Non-Patent Document 2, information on a base station apparatus 20 that is used by a user with high priority (for example, PAL) in advance (in Non-Patent Document 2, it is called a Cluster List). Is registered in the communication control device 40, the evaluation may be performed based on the information.

After the evaluation of the available frequency is completed, the communication control device 40 notifies the base station device 20 (or the proxy device 50) of the evaluation result (step S24). The base station apparatus 20 may select desired communication parameters by using the evaluation result received from the communication control apparatus 40.

<5-3. Frequency Grant Procedure>
The frequency use permission procedure is a procedure for the base station device 20 and the like to receive a secondary frequency use permission from the communication control device 40. Typically, after the successful completion of the registration procedure, one or more communication systems including the base station apparatus 20 or a plurality of base station apparatus 20 communicate a frequency usage permission request containing information that can identify the base station apparatus 20. The procedure is started by notifying the control device 40. This notification may be made by the proxy device 50. Note that "after the normal completion of the registration procedure" also means that it is not always necessary to carry out the available frequency information inquiry procedure.

In this embodiment, it is assumed that at least the following two types of frequency usage permission request methods can be used.
Designation method Flexible method

The designation method is a request method in which the base station device 20 specifies at least the frequency band to be used and the maximum transmission power as desired communication parameters, and requests the communication control device 40 to permit operation based on the desired communication parameters. It is not always necessary to be limited to these parameters, and parameters specific to the wireless interface technology (modulation method, duplex mode, etc.) may be specified. In addition, information indicating radio wave usage priority such as PAL and GAA may be included.

The flexible method is a request method in which the base station device 20 specifies only the requirements related to the communication parameters, and requests the communication control device 40 to specify the communication parameters for which the secondary use permission can be granted while satisfying the requirements. Requirements for communication parameters may include bandwidth or desired maximum transmit power or desired minimum transmit power. It is not always necessary to be limited to these parameters, and parameters specific to the wireless interface technology (modulation method, duplex mode, etc.) may be specified. Specifically, for example, one or more of the TDD Frame Configurations may be selected in advance and notified.

Either method may include a measurement report. The measurement report includes the results of the measurement performed by the base station device 20 and / or the terminal device 30. For example, it can include processed information as well as raw data. For example, standardized metrics such as RSRP (Reference Signal Received Power), RSSI (Reference Signal Strength Indicator), and RSRQ (Reference Signal Received Quality) can be used.

[Details of frequency usage permission processing]
FIG. 19 is a sequence diagram for explaining the frequency use permission procedure. The base station device 20 or one or more communication systems including the plurality of base station devices 20 generate a frequency use permission request including information that can identify the base station device 20 (step S31), and notify the communication control device 40. (Step S32). The proxy device 50 may generate and / or notify the request. The frequency use permission request is acquired, for example, by the acquisition unit 441 of the communication control device 40.

After acquiring the frequency use permission request, the communication control device 40 performs the frequency use permission process based on the frequency use permission request method (step S33). For example, the communication control device 40 is described in <5-2. Available frequency information inquiry procedure> Using the method described in Examples 1 to 3, frequency usage permission processing is performed in consideration of the existence of the primary system, its secondary use prohibited area 303, and the nearby base station device 20. It is possible to do.

When the flexible method is used, the communication control device 40 is set to <5-2. The maximum allowable transmission power information may be derived by using the method described in Example 4 of the available frequency information inquiry procedure>. Typically, the communication control device 40 provides permissible interference power information in the primary system or its protection zone, reference point information for the interference power level suffered by the primary system, and base station device 20. Calculate the maximum allowable transmission power using the registration information and the propagation loss estimation model. For example, the communication control device 40 calculates the maximum allowable transmission power by the following equation (2).
P _{MaxTx (dBm)} = I _{Th (dBm)} + PL (d) _(dB) … (2)

_Here, the distance between _{P MaxTx (dBm)} is the maximum permitted transmission _{power, I Th (dBm)} is acceptable interference power, d is the reference position and (Reference Point) and the base station device 20, PL _{(d) (dB )} Is the propagation loss at the distance d. Although the antenna gain in the transceiver is not explicitly shown in this formula, it can be used as a reference point for the maximum allowable transmission power (EIRP, Conducted power, etc.) and reception power (antenna input point, antenna output point, etc.). The mathematical formula may be modified accordingly. In addition, a safety margin or the like for compensating for fluctuations due to fading may be included. In addition, feeder loss and the like may be considered as necessary.

Further, the above mathematical formula is described based on the assumption that the single base station device 20 is the interference source. For example, when it is necessary to consider cumulative interference from a plurality of base station devices 20 at the same time, a correction value may be added. Specifically, for example, the correction value can be determined based on the three types (Fixed / Predetermined, Flexible, Flexible Minimized) disclosed in Non-Patent Document 3.

Various models can be used as the propagation loss estimation model. When a model is specified for each application, it is desirable to use the specified model. For example, in Non-Patent Document 6, a propagation loss model such as eHATA (Extended Hata) or ITM (Irregular Terrain Model) is adopted for each application. Of course, in practicing the present invention, the propagation loss model need not be limited to these.

If a model is not specified for a given purpose, it may be used properly as needed. As a specific example, for example, when estimating the coverage of the base station device 20 by using an aggressive model such as a free space loss model when estimating the interference power to another base station device 20. Can be used properly, such as using a conservative model.

If the designated method is used, <5-2. It is possible to perform frequency usage permission processing using the method described in Method 1 of Usable Frequency Information Inquiry Procedure>. Specifically, for example, when it is assumed that the desired transmission power indicated by the transmission power information is used, the estimated interference amount is less than the allowable interference power in the primary system or its protection zone. Is determined that the use of the frequency channel can be permitted, and the base station device 20 (or the proxy device 50) is notified.

In either method, the radio wave utilization priority such as PAL or GAA may be evaluated. For example, when the registered device parameter or the inquiry requirement includes information on the radio wave usage priority, it may be determined and notified whether the frequency can be used based on the priority. Further, for example, as disclosed in Non-Patent Document 2, information on a base station apparatus 20 that is used by a user with high priority (for example, PAL) in advance (in Non-Patent Document 2, it is called a Cluser List). Is registered in the communication control device 40, the evaluation may be performed based on the information.

The frequency usage permission process does not necessarily have to be performed when the request is received. For example, after the above-mentioned registration procedure is normally completed, the communication control device 40 may independently carry out the operation without requesting the frequency use permission. Further, for example, the frequency use permission determination process may be performed at regular intervals. In such a case, <5-2. REM and look-up table illustrated in Method 2 of Available frequency information inquiry procedure> An information table similar to them may be created.

After the frequency use permission process is completed, the communication control device 40 notifies the base station device 20 of the determination result (step S34).

<5-4. Frequency Use Notification / Heartbeat>
The frequency usage notification is a procedure in which the base station device 20 or the proxy device 50 or the like notifies the communication control device 40 of the frequency usage based on the communication parameters permitted to be used in the frequency usage permission procedure. be. Typically, the base station device 20 or the proxy device 50 starts the procedure by notifying the communication control device 40 of a notification message including information that can identify the base station device 20.

It is desirable that this procedure be carried out periodically until the use of the frequency is rejected by the communication control device 40. If this procedure is successfully completed, the base station apparatus 20 may start or continue radio wave transmission. For example, if the Grant status was Granted, the success of this procedure will shift the Grant status to Enhanced. Also, if the grant status is Enhanced, the grant status shifts to Granted or Idol due to the failure of this procedure.

Here, the grant is an authorization for radio wave transmission given by the communication control device 40 (for example, SAS) to the base station device 20 (for example, CBSD). Grant can be rephrased as a license to use radio wave resources (frequency resources). This grant is described, for example, in Non-Patent Document 2. Non-Patent Document 2 standardizes a signaling protocol between a database (SAS) and a base station (CBSD) for frequency sharing of 3550-3700 MHz in the United States. In this standard, the approval of radio wave transmission given to CBSD by SAS is called "Grant". The operating parameters recognized by Grant are defined by two, the maximum allowable EIRP (Equivalent Isotropic Radiated Power) and the frequency channel. That is, in order to transmit radio waves using a plurality of frequency channels, the CBSD needs to acquire a plurality of grants from the SAS.

The grant defines a state indicating the permitted state of radio wave transmission. FIG. 20 is a state transition diagram showing a permitted state of radio wave transmission. In FIG. 20, the Granted state indicates a state in which a grant is possessed but radio waves must not be transmitted, and the Enhanced state indicates a state in which radio wave transmission is permitted based on an operation parameter value defined by the grant. These two states transition according to the result of the Heartbeat Procedure specified in the standard.

In the following description, the frequency usage notification may be referred to as a heartbeat request or simply a heartbeat. In addition, the transmission interval of a heartbeat request may be referred to as a heartbeat interval (Heartbeat Interval). The description of Heartbeat Request or Heartbeat appearing in the following description can be appropriately replaced with another description indicating "request for starting or continuing radio wave transmission". Similarly, the heartbeat interval can be replaced with another description (for example, transmission interval) indicating the transmission interval of the frequency utilization notification.

FIG. 21 is a sequence diagram for explaining the frequency usage notification procedure. The base station device 20 or one or more communication systems including the plurality of base station devices 20 generate a notification message including information that can identify the base station device 20 (step S41), and notify the communication control device 40 (step S41). Step S42). The proxy device 50 may generate and / or notify the message.

After receiving the frequency usage notification, the communication control device 40 may determine whether the start / continuation of radio wave transmission is permitted (step S43). As a determination method, for example, confirmation of frequency usage information of the primary system can be mentioned. Specifically, it is decided to start / continue permission or refusal of radio wave transmission based on changes in the frequency used by the primary system, changes in the frequency usage status of the primary system (for example, carrier-based radar) whose radio wave usage is not steady, etc. It is possible to do.

When the determination process is completed, the communication control device 40 notifies the base station device 20 (or the proxy device 50) of the determination result (step S44).

In this procedure, the communication control device 40 may issue a communication parameter reconfiguration command to the base station device 20 (or proxy device 50) or the like. Typically, it can be implemented in the response of the frequency utilization notification. For example, recommended communication parameter information may be provided.

<5-5. Supplementary procedures>
Here, the procedures do not necessarily have to be implemented individually, as described below. For example, the above two different procedures may be realized by substituting a third procedure having the roles of two different procedures. Specifically, for example, the registration request and the available frequency information inquiry request may be notified integrally. Further, for example, the frequency use permission procedure and the frequency use notification may be carried out integrally. As a matter of course, the combination is not limited to these, and may be three or more. Moreover, the above procedure may be carried out separately.

In addition, when this embodiment is applied for the purpose of frequency sharing with an existing system, various procedures or equivalent procedures are based on the Radio Law relating to the frequency band in the country / region where the technology of this embodiment is implemented. It is desirable that the appropriate one is selected and used. For example, when registration of a communication device is obligatory for the use of a specific frequency band in a specific country / region, it is desirable that the above registration procedure be carried out.

In addition, the expression "acquiring information" or an expression equivalent thereto in the present embodiment does not necessarily mean that the information is acquired according to the above procedure. For example, although it is described that the position information of the base station device 20 is used in the available frequency evaluation process, it is not always necessary to use the information acquired in the registration procedure, and the available frequency inquiry procedure request includes the position information. If so, it means that the position information may be used. In other words, it means that the described parameters may be included in other procedures within the scope described in this embodiment and within the technical feasibility.

Further, the information that can be included in the response from the communication control device 40 to the base station device 20 (or proxy device 50) or the like shown in the above procedure may be push-notified. As a specific example, available frequency information, recommended communication parameter information, radio wave transmission continuation refusal notification, and the like may be push-notified.

<5-6. Procedures related to terminal devices>
As for the terminal device 30, basically, each procedure described in <5-1> to <5-4> can be used. However, unlike the base station device 20, the terminal device 30 has mobility. That is, the position information is dynamically updated. Depending on the legal system, if the location information changes by a certain amount or more, re-registration to the communication control device 40 may be obligatory. Therefore, in the operation mode (see Non-Patent Document 4) defined by the Office of Communication (UK), the following two types of communication parameters are specified.
Specific Operational Parameters
Generic Operational Parameters

Specific Operational Parameters are defined in the non-patent document as "operation parameters specific to a specific slave WSD (White Space Device)". In other words, it is a communication parameter calculated by using the device parameter of the slave WSD corresponding to the terminal device 30. As a feature, it is calculated by WSDB (White Space Database) using the position information of the slave WSD.

From these characteristics, it is assumed that the individual parameters are suitable for low mobility or fixedly installed terminal devices 30.

Generic Operational Parameters are defined in the non-patent document as "operation parameters that can be used by any slave WSD located within the coverage area of a predetermined master WSD (corresponding to the base station apparatus 20)". There is. As a feature, it is calculated by WSDB without using the position information of the slave WSD.

From these characteristics, it is assumed that the general parameters are suitable for the high mobility terminal device 30.

These information for the terminal device 30 can be provided by the base station device 20 by unicast / broadcast. For example, a broadcast signal represented by CVS (Contact Verification Signal) specified in FCC Regulation Part 15 Subpart H can be used. Alternatively, it may be provided by a broadcast signal specific to the wireless interface. Specifically, for example, it may be provided by PBCH (Physical Broadcast Channel), NR-PBCH, etc. used in LTE and 5G NR.

<5-7. Procedures that occur between communication control devices>
[Information exchange]
The communication control device 40 can exchange management information with another communication control device 40. FIG. 22 is a sequence diagram for explaining a procedure for exchanging management information. In the example of FIG. 22, the communication control device 40 ₂ are exchanging management information with the communication control apparatus 40 ₁ (step S51). Of course, the communication control unit for exchanging information is not limited to two communication control device 40 ₁ and the communication control unit 40 _2.

In the management information exchange procedure, it is desirable that at least the following information be exchanged.
Communication device registration information Communication device communication parameter information Area information

The communication device registration information is typically a device parameter of the base station device 20 registered in the communication control device 40 in the registration procedure. Not all registered information need to be exchanged. For example, information that may correspond to personal information does not need to be exchanged. Further, when exchanging the communication device registration information, the encrypted / ambiguous information may be exchanged. For example, information converted into a binary value or information signed using an electronic signature mechanism may be exchanged.

The communication device communication parameter information is typically information related to the communication parameters currently used by the base station device 20. At a minimum, it is desirable to include information indicating the frequency used and the transmission power. Other communication parameters may be included.

Area information is typically information that indicates a given geographic area. This information may include domain information of various attributes in various aspects.

For example, protection area information of the base station apparatus 20 which is a high priority secondary system such as PPA (PAL Protection Area) disclosed in Non-Patent Document 5 may be included. The area information in this case can be represented by, for example, a set of three or more geographic location coordinates. Further, for example, when a plurality of communication control devices 40 can refer to a common external database, it can be represented by an ID indicating the information.

Further, for example, information indicating the coverage of the base station apparatus 20 may be included. The area information in this case can also be represented by, for example, a set of three or more geographic location coordinates. Further, for example, assuming a circle whose origin is the geographical position of the base station apparatus 20, the information indicating the radius size can also be expressed. Further, for example, when a plurality of communication control devices 40 can refer to a common external database, it can be represented by an ID indicating the information.

In addition, as another aspect, information relating to an area division predetermined by the government or the like may be included. Specifically, for example, it is possible to indicate a certain area by indicating an address. Further, for example, a license area and the like can be expressed in the same manner.

Further, as yet another aspect, the area information does not necessarily have to represent a flat area, and may represent a three-dimensional space. For example, it may be expressed using a spatial coordinate system. Further, for example, information indicating a predetermined closed space such as the number of floors of the building, the floor or the room number may be used.

This information can be exchanged in various ways. An example is shown below.
ID specification method Period specification method Area specification method Dump method

The ID designation method is a method of acquiring information corresponding to the above ID by using an ID assigned in advance for specifying the information managed by the communication control device 40. For example, it is assumed that the communication control device 401 manages the base station device 20 with ID: AAA. At this time, the communication control device 402 makes an information acquisition request to the communication control device 401 by designating the ID: AAA. After receiving the request, the communication control device 401 searches for information of ID: AAA, and notifies the registration information and communication parameter information of the corresponding base station device 20 by a response.

In the period designation method, a specific period is designated, and information satisfying a predetermined condition can be exchanged during the period.

Predetermined conditions include, for example, whether or not information is updated. For example, when the acquisition of communication device information in a specific period is specified in the request, the registration information of the base station device 20 newly registered in the period and the registration information of the base station device 20 whose communication parameters have been changed are communicated with each other. Parameter information can be notified in the response.

The predetermined condition includes, for example, whether or not the communication control device 40 is recording. For example, when the acquisition of the communication device information in a specific period is specified in the request, the registration information of the base station device 20 and the communication parameter information recorded by the communication control device 40 in the period can be notified in the response. Furthermore, the latest information during the period may be notified. Alternatively, the update history may be notified for each information.

In the area designation method, a specific area is designated and information belonging to the area is exchanged. For example, when the acquisition of communication device information in a specific area is specified in the request, the registration information and communication parameter information of the base station device 20 installed in the area can be notified in the response.

The dump method is a method of providing all the information recorded by the communication control device 40. At least, it is desirable that the information and the area information related to the base station apparatus 20 are provided by the dump method.

All the explanations about the information exchange between the communication control devices 40 up to this point are based on the pull method. That is, it is a form in which the information corresponding to the parameter specified in the request is responded, and can be realized by the HTTP GET method as an example. However, it is not necessary to be limited to the pull method, and the information may be actively provided to the other communication control device 40 by the push method. The push method can be realized by the HTTP POST method as an example.

[Order / Request Procedure]
The communication control device 40 may execute commands and / or requests from each other. Specifically, as an example, reconfiguration of the communication parameter of the base station apparatus 20 can be mentioned. For example, when the communication control device 40 ₁ is the base station apparatus 20 ₁ for managing, it is determined that receiving great interference from the base station apparatus 20 ₄ managed by the communication control unit 40 _2, the communication control device 40 ₁ There the communication control device 40 _2, may be a communication parameter change request of a base station apparatus 20 _4.

Another example is the reconfiguration of area information. For example, if the deficiencies found in the calculation of the coverage information and the protection area information related to the base station apparatus 20 ₄ managed by the communication control unit 40 _2, the communication control device 40 ₁ to the communication control unit 40 _2, of the area information You may request a reconstruction. In addition to this, the area information reconstruction request may be made for various reasons.

<< 6. Primary system protection >>
Subsequently, the primary system protection according to the embodiment of the present disclosure will be described. In the following, an FPU operated by a broadcaster in Japan will be described as an example, but the primary system protection according to the embodiment of the present disclosure is not limited to the FPU.

For example, wireless systems for public services in the 2.3 GHz band, satellite mobile communication services and wideband mobile wireless access systems in the 2.6 GHz band, 5 GHz band wireless access systems, DSRC (Dedicated Short Range Communications), amateur radio, 5.8 GHz band image transmission. System, FPU using microwave band around 5 to 7GHz, STL (Studio to Transmitter Link) / TTL (Transmitter to Transmitter Link) / TSL (Transmitter to Studio Link) used for video transmission, 6GHz band telecommunications business fixed wireless System, mobile satellite uplink (C band), 26GHz band FWA (Fixed Wireless Access), airport surface detection radar, 25GHz band low power data communication system, satellite uplink (Ka band), image transmission using 40GHz band (public business) ), Wireless systems for public and general business using the 40 GHz band, and FPUs using the 40 GHz band can also be subject to primary system protection.

<6-1. Assumed primary system protection model>
In the description of the FPU, a radio station that transmits video is referred to as an FPU transmitting station, and a radio station that receives the video is referred to as an FPU receiving station. In the current FPU, only the FPU receiving station needs to be protected from the secondary system, but in the FPU advanced system currently under consideration for introduction, the FPU receiving station transmits the control signal to the transmitting station. conduct. Therefore, it is also necessary to protect the FPU transmitting station from the secondary system. In the embodiment of the present disclosure, the description including the protection of the FPU transmitting station will be given.

As the FPU utilization model according to the embodiment, the following six operation models disclosed in Non-Patent Document 7 are assumed. Of course, the FPU usage model is not limited to these six.
Model 1: Transmission from a relay vehicle to a receiving base station up to a propagation distance of 50 km (fixed relay)
Model 2: Transmission from a relay vehicle to a receiving base station up to a propagation distance of 10 km (mobile relay)
Model 3: Transmission with a propagation distance of about 3 km from a relay vehicle to a receiving base station in a short-distance section of an urban area (mobile relay)
Model 4: Transmission from a relay vehicle to a helicopter with a propagation distance of about 2 km (mobile relay)
Model 5: Transmission up to a propagation distance of 1 km to the nearest relay vehicle while moving with the equipment on its back (mobile relay)
Model 6: Transmission from motorcycle to relay vehicle up to a propagation distance of 1 km (mobile relay)

In all of the above models, the FPU transmitter / receiver may be temporarily installed during use. Therefore, the position information of the FPU transmission / reception station may change each time it is used. The models 1 to 3 may include an FPU receiving station that is always installed on a building or a mountain. Hereinafter, the former will be referred to as a mobile station and the latter will be referred to as a fixed station.

In addition, each FPU usage model assumed this time has two usage patterns, one is planned use at a predetermined place and time, and the other is unscheduled use. The former corresponds to the use of models 1 to 6 in information programs, sports broadcasts, etc., and the specific usage location and usage time of the radio station applied for by the broadcaster in advance can be used for interference calculation. On the other hand, the latter is assumed in Models 1 and 5, and since the specific usage location and usage time are not known until immediately before the usage, the specific usage schedule cannot be used for the protection of the primary system.

Of the above-mentioned usage models, models 1.5 are mainly expected to be used unscheduled in news programs and the like. Planned use is assumed for all models 1-6.

Table 1 shown below is an example of usage position information for each usage model and usage mode. In addition, the information provided naturally varies depending on the primary system and its operator, and is not limited to the information listed in Table 1 below.

One of the differences between the FPU and the primary system that was conventionally assumed in CBRS, TVWS, etc. is that the radio station can move, so the usage position may be a point or an area for each usage model. That is. Furthermore, there are two usage patterns, and the information indicated as the usage position at the time of unscheduled usage is only a candidate area. In the embodiment of the present disclosure, the information provided by the primary system is analyzed, and the primary system protection method is switched depending on the usage model and usage mode.

Another feature is that the antenna of the radio station that is the communication partner can move in response to the movement of the radio station. For example, in the planned use of models 2 to 6, since there is a possibility that the antenna of the receiving station is rotated following the movement of the transmitting station, it is necessary to protect the entire rotation range. Also, in the unscheduled use of models 1 and 5, when it is detected that the transmitting station has been used in the candidate area, the receiving station antenna may be directed in that direction, so which part of the rotation range of the antenna should be directed. It needs to be protected so that it can be used.

<6-2. Information about the primary radio station>
The detailed specifications and usage schedule information of the primary radio station required to protect the primary system are controlled by communication control such as information input to the radio station specification database or radio station usage schedule database, or HTTP request / response. The information input to the device 40 is used.

<6-2-1. Detailed specifications of the primary radio station>
The detailed specifications of the primary radio station used in the interference calculation may include, for example, the following information.
・ Information that can identify the radio station ・ Radio station user information ・ Radio station hardware information ・ Antenna information ・ Radio interface information ・ Location information ・ Legal information

Information that can identify an individual radio station may include a serial number, a product model number, a serial number, a manufacturer information, and the like.

As the radio station user information, a user ID of the primary system, a call sign, or the like can be assumed. The user ID may be independently generated by the radio station user, or may be issued in advance by the communication control device 40. In the case of FPU, the radio station user is a broadcaster that operates the FPU.

The radio station hardware information may include installation information of the primary radio station and the like. FPU radio stations include fixed reception stations that are permanently installed on buildings and mountains, fixed reception stations that are installed only at events, mobile transmission / reception stations that are mounted on relay vehicles, and portable transmission that can be carried by people. Stations, transmission stations installed in small vehicles such as motorcycles are assumed. Therefore, it is desirable to include information that can distinguish these from the installation information. For example, an identifier for distinguishing a transmitting station and a receiving station, an identifier indicating whether or not movement is possible, and the like can be considered.

The antenna information is typically information indicating the performance, configuration, and the like of the antenna included in the communication device. Typically, it may include information such as antenna installation height, down tilt, horizontal orientation (Azimuth), elevation angle (Elevation), aiming (Boresight), antenna peak gain, and antenna model.

In the case of FPU, the installation height of the antenna, tilt angle (Down tilt), horizontal orientation (Azimuth), elevation angle (Elevation), aiming (Boresight), etc. may change during use, so this information is available. It may be given as a range of values.

The wireless interface information is typically information indicating the wireless interface technology provided in the communication device. In the case of FPU, it is desirable to include the compliance status of the radio station with the ARIB standard. For example, the status of support for the advanced FPU method, subframe length, modulation method, spatial multiplexing method, occupied frequency bandwidth (full mode, half mode), error correction code, antenna power, and the like.

The location information is typically information that can identify the geographic location of the primary radio station. This coordinate information may include information related to latitude, longitude, altitude, and positioning error. Alternatively, for example, the coordinates may be the X-axis, Y-axis, and Z-axis having a specific geographic position as the origin.

These location information may be input to the database or the communication control device 40 by the user of the primary radio station. It is desirable that the input position information is the coordinate information acquired by the user of the primary radio station by the position positioning function. Further, as these position information, the information acquired by the positioning function mounted on the primary radio station itself may be input from the primary radio station.

In addition, if the location information does not exist, such as when the primary radio station is installed only when it is used, it does not necessarily have to be included in the detailed specifications. In this case, it is desirable that the location information is included in the usage schedule information of the primary radio station. In the case of fixed radio stations, location information may be included in the detailed specifications.

Legal information is typically information about regulations that telecommunications equipment must comply with, as well as authentication information that telecommunications equipment has acquired, as defined by radio administration agencies in each country / region or similar organizations. That is. The information regarding the regulation may typically include, for example, information on the upper limit of out-of-band radiation, information on the blocking characteristics of the receiver, and the like. The certification information typically includes, for example, type approval information (FCC ID, technical standard conformity certification, etc.), legal and regulatory information (eg, FCC rule number, ETSI Harmonized Standard number, etc.) that is the basis for obtaining certification. ) Etc. may be included.

<6--2-2. Scheduled use information>
As the usage schedule information used for the protection of the primary system, two types of planned usage schedule information and unscheduled usage advance information are assumed for the usage pattern of the primary system.

It is desirable that the scheduled information for planned use and the advance information for unscheduled use include the following elements.
・ Information that can identify the radio station ・ Radio station user information ・ Identification of the communication partner radio station ・ Usage schedule identification information ・ Usage pattern information ・ Usage time ・ Usage location information ・ Antenna information at the time of use

The information that can identify the radio station and the information on the user of the radio station may include the same information as the detailed specifications of the radio station.

The communication partner identifier is information for identifying the communication partner's radio station when the communication partner's radio station is determined in advance in the usage schedule. Mainly, the primary system user inputs in advance to the database or the communication control device 40 according to the planned use schedule of the radio station. It may include serial numbers, product model numbers, serial numbers, manufacturer information, etc. that can identify individual radio stations.

As the usage schedule identification information, an ID or the like that can identify the usage schedule can be assumed. This ID may be independently generated by the radio station user, or may be issued in advance by the communication control device 40.

The usage pattern information may include information for distinguishing whether the usage pattern is planned use or unplanned use.

The usage time is information for specifying the time when the primary radio station is planned to be used, and can be included only in the planned usage schedule information. Mainly, the primary system user inputs in advance the time when he / she wants to plan and use the radio station in the database or communication control device. It typically consists of a pair of usage start time and usage end time. The time pair included in the same usage schedule does not necessarily have to be one, and may include a plurality of time zones. In addition, the dates of a plurality of time zones included in the same usage schedule may be different from each other. In addition to the start time and end time, schedules that repeat by date, hour, minute, second, etc. can also be included.

The usage location information is information for identifying the geographical location where the primary radio station is used. The database and communication control are mainly used by the primary system user to obtain information on points and areas where radio stations are located during planned use, or information on points and areas where radio stations may be located during unscheduled use. It is input to the device 40 in advance.

In the case of FPU, since the position of the mobile station changes for each usage schedule, location information is required for each usage schedule. Further, depending on the operation model of the FPU, since the radio station is used while moving, the area can be input as the usage position information.

Further, since mobile stations mounted on relay vehicles, motorcycles, people, helicopters, etc. move during transmission, it is desirable that an area is input as usage position information. For example, an area may be indicated by a set of three or more geographic coordinates.

Further, when the primary radio station is mounted on an object moving in the air such as a helicopter, a three-dimensional space may be designated as the usage position information.

Further, the usage position information may be a set of three or more geographic coordinates representing the DPA (Dynamic Protection Area) described in Non-Patent Document 6 or a set of geographical points representing the usage candidate positions. ..

Further, when the usage position information including the DPA is described in the database outside the communication control device 40, it can be represented by an ID indicating the information.

The communication control device 40 protects the primary system based on the information of points and areas included in the usage position information.

The antenna information at the time of use is information for specifying the antenna specifications at the time of planned use of the primary radio station and the antenna specifications expected at the time of unscheduled use. Mainly, the primary system user inputs the antenna installation height, tilt angle (Down tilt), horizontal orientation (Azimuth), elevation angle (Elevation), aiming (Boresight), etc. into the database or communication control device 40 in advance. It is something to keep.

For FPU, etc., the antenna installation height, tilt angle (Down tilt), horizontal orientation (Azimuth), elevation angle (Elevation), aiming (Boresight), etc. are set for each planned use, or the antenna installation height during use, Since the tilt angle (Down tilt), horizontal orientation (Azimuth), elevation angle (Elevation), aiming (Boresight), etc. change, this information may be given as a range of values.

Further, when the antenna information is described in the database outside the communication control device 40, it can be represented by an ID indicating the information.

The communication control device 40 protects the primary system based on the antenna information at the time of use.

<6-2-3. Difference between planned use and unplanned use schedule information>
As described in (6--2-2. Scheduled use information), the accuracy of the information that can be used for the cumulative interference power evaluation differs between the planned use and the unplanned use schedule information.

The usage schedule information for planned use is input in advance by a primary radio station user such as a broadcaster. In this information, in addition to the usage time, the point and area where the primary radio station is used, and the antenna information at the time of use are accurately input. In this way, since the cumulative interference power evaluation can be performed using the accurate usage schedule information registered in advance, it is not necessary to take a large margin for the protection target point / area, protection antenna information, etc., and the result is As a result, the opportunity to use the secondary radio station may increase.

On the other hand, in the usage schedule information for unscheduled use, the usage time is not specified in advance, and accurate usage location information is not provided. Only the points and areas that may be used, antenna information, etc. are shown, and accurate usage schedule information cannot be used in advance. When evaluating cumulative interference power, protected points and areas are shown. It is necessary to take a margin for the protection antenna information and so on. Therefore, the opportunity to use the secondary radio station can be reduced as compared with the case of planned use.

As for the usage schedule information for unscheduled use, the time from the notification of the exact usage position of the primary radio station to the actual use of the primary radio station is short, and the cumulative interference power evaluation using the accurate information is performed. Even if it cannot be completed, a marginal cumulative interference power assessment is provided to ensure protection of the primary radio station.

<6-3. Primary system protection>
The primary system protection according to the embodiment of the present disclosure is carried out by the communication control device 40 according to the procedure shown in FIG. FIG. 23 is a flowchart showing the procedure for protecting the primary system.

First, in the communication control device 40, the communication control device acquires the usage schedule information input to the database or the communication control device by the operator of the primary system (step S61), and confirms whether the usage schedule information to be evaluated exists. (Step S62).

When the acquired usage schedule information includes a new usage schedule or an existing usage schedule is updated, the communication control device 40 executes a process related to primary system protection. Whether or not the existing usage schedule has been updated can be determined, for example, by comparing the information with the usage schedule having the same ID as the previously acquired usage schedule.

When the communication control device 40 determines that the usage schedule information to be evaluated exists (step S62; Yes), the communication control device 40 selects the primary system protection method using the usage schedule information (step S63). You may also select the algorithm used to protect the primary system.

The communication control device 40 implements primary system protection using the primary system protection method selected in step S63 (step S64), and stores the result in a database or the like (step S65).

When selecting and implementing the primary system protection method, various information included in the usage schedule may be used as it is, or the usage schedule information of the corresponding radio station may be used by using the usage schedule information of another radio station. You may use the information after predicting.

Subsequently, the communication control device 40 determines whether or not it is planned use (step S66).

When the communication control device 40 determines that the planned use is used (step S66; Yes), the communication control device 40 sets the scheduler at the designated scheduled use time (step S67). As a result, the communication control device 40 can determine the start of use of the primary system.

Subsequently, the communication control device 40 determines whether or not there is unevaluated schedule information (step S68). When the communication control device 40 determines that there is unevaluated schedule information (step S68; Yes), the communication control device 40 returns to the procedure of step S62. On the other hand, when the communication control device 40 determines that there is no unevaluated schedule information (step S68; No), the communication control device 40 ends the procedure shown in FIG. 23.

In step S62, when it is determined that the usage schedule information to be evaluated does not exist (step S62; No), the communication control device 40 ends the procedure shown in FIG. 23.

Finally, the communication control device 40 stores the result of the primary system protection in a database or the like. This information is read at the start of using the primary system, and may include information on a secondary radio station that is required to stop radio waves or change parameters.

Note that the primary system protection does not necessarily have to be performed for all radio stations individually, and radio stations with short transmission distances can be regarded as the same radio station, or two or more adjacent radio stations can be regarded as one radio station. You may consider it as a calculation. Furthermore, if there are radio stations with the same parameters, the evaluation results may be diverted.

<6-3-1. Point protection and area protection ＞
Primary system protection is roughly divided into point protection and area protection according to the protection target.

In point protection, the position where the radio station is installed is the protection target. In CBRS, as disclosed in Non-Patent Document [6], Fixed Satellite Service (FSS) and the like are subject to point protection.

The point protection algorithm used in CBRS is the Iterative Allocation Process (IAP), which allocates the margin of interference with the primary radio station to the secondary radio station, and the cumulative interference power from the secondary radio station is calculated to stop the operation. There is a technique to create a list of required secondary radio stations. Of course, a point protection algorithm other than these may be used.

The latter method is used to suppress the out-of-band interference of FSS within the default value, and this list is called the Purge List, and the secondary radio stations included in this list communicate using the corresponding channel. Is prohibited.

A similar algorithm can also be used when given one or more points where a radio station may be used. When the use of the primary radio station is detected or the use of the primary radio station is notified by a preset scheduler, the frequency usage notification can be used to request the secondary radio station to stop the radio wave or change the parameters. The embodiments of the present disclosure distinguish such point protection as dynamic point protection.

Area protection covers the entire coverage of a fixed radio station or the entire area in which the radio station may exist. In CBRS, as disclosed in Non-Patent Document [6], coverage of Grandfather Wireless Broadband License (GWBL) and Primary Access License (PAL), areas where Federal Incumbent carrier-based radar, etc. may move, etc. Is subject to area protection.

A plurality of interference calculation reference points (hereinafter referred to as protection points) are set in the area to be protected, and it is necessary to protect the protection points from the secondary system. The method of setting the protection points is arbitrary, but for example, the inside of the protection area may be divided in a grid pattern, and the center of a predetermined grid may be used as the protection points. In CBRS, all the intersections of the grid every two angles of latitude and longitude are used as protection points.

In CBRS, when protecting a protection point, the stop list of the IAP or the secondary radio station is calculated in the same manner as the point protection, but the area protection algorithm used in the present invention is not limited to this.

In addition, the area where the Federal Incumbent may move is defined as the Dynamic Protection Area (DPA) in the CBRS. DPA is an area where the Federal Incumbent is expected to be used, divided into multiple areas. Multiple protection points are set in each DPA as in the normal protected area, and by calculating the cumulative interference from the secondary radio station to all the protection points in each DPA, the radio station that needs to be stopped Create a list (Move List). When the Environmental Sensing Capability (ESC) sensor detects the use of the primary radio station in the DPA, or when the use of the primary radio station is notified by the preset scheduler, it is included in the Move List by the frequency usage notification. Request the secondary radio station to stop the radio wave.

Further, in the DPA of CBRS, the use of the primary system requires the anonymity of the sensor position information.

Further, although the DPA in the CBRS is used only when creating the Move List, the IAP may be performed using the DPA and the secondary radio station may be instructed to change the parameters.

The present invention distinguishes area protection using DPA as dynamic area protection.

Further, as another primary system protection, a mere internal / external determination such as an Exclusion Zone in CBRS may be performed.

These primary system protections are periodically executed at arbitrary intervals using the usage schedule information. These results are stored in a database, etc., and when the use of the primary radio station is actually detected by the scheduler, sensor, database, etc., this information is notified to the secondary radio station by frequency usage permission processing or frequency usage notification. NS.

The interval at which the primary system is protected can be determined by the communication control device at its own discretion, and can also be determined by the user of the primary system, the radio wave administration agency of each country / region, or an organization equivalent thereto.

In addition, when protecting the primary system, if it is determined that the calculation is not in time by the scheduled usage time entered in the planned usage schedule information, it is not always necessary to execute the interference calculation, and the unscheduled usage The primary radio station may be protected by using the result of the primary system protection process performed using the usage schedule information.

<6--3-2. Primary system protection method selection procedure>
Regarding primary system protection in CBRS, protection methods are determined by standards and legislation for each primary system, such as point protection for FSS, area protection for GWBL and PAL, and area protection using DPA for military equipment such as carrier-based radar. There is.

On the other hand, in the primary system with the mobility of radio stations as envisioned in Japan, therefore, the method of implementing point area protection such as FSS, GWBL, and PAL of CBRS by the scheduler and the dynamic protection such as DPA. It is necessary for the communication control device 40 itself to switch between two methods of protecting the corresponding point or area when the point area is set and the use is detected by a sensor or the like.

Since CBRS does not assume such a primary system, the communication control device 40 cannot autonomously determine and switch the primary system protection method for use.

In the embodiment of the present disclosure, the communication control device 40 autonomously determines the primary system protection method by acquiring the usage schedule information of the radio station from the primary system side and the communication control device 40 discriminating the information contained therein. To decide.

Specifically, the communication control device 40 (control unit 44) selects the primary system protection method from the usage pattern and usage position information of the radio station provided by the primary system. In addition, other usage schedule information may be used.

Primary system protection such as cumulative interference power evaluation can be implemented even when the usage of radio stations of the same primary system or the usage schedule of the same radio station are mixed.

0380 shows an example of a switching (selection) flow of the primary system protection method by the communication control device 40. FIG. 24 is a flowchart showing an example of a procedure for switching (selecting) the primary system protection method. The flow shown in FIG. 24 is executed by the control unit 44 of the communication control device 40.

In the example shown in FIG. 24, the control unit 44 selects one of a plurality of primary system protection methods including a dynamic or static protection method based on the usage pattern and usage position information of the primary radio station. Then, protect the primary radio station based on the protection method selected.

Further, in the example shown in FIG. 24, the control unit 44 selects and implements one of the static protection methods when the radio station is planned use, and dynamically when the radio station is used unscheduled. Select and implement one of the protection methods.

Further, in the example shown in FIG. 24, the control unit 44 selects and implements point protection based on the protection target point of the radio station determined based on the usage position information of the radio station, and implements the point protection, and the usage position of the radio station. Area protection is selected and implemented based on the protected area of the radio station, which is determined based on the information.

First, the communication control device 40 determines whether the usage pattern is planned usage or unscheduled usage (step S71).

When the communication control device 40 determines that the usage mode is planned usage (step S71; planned usage), the communication control device 40 determines whether the usage position information includes either point information or area information. (Step S72).

When the communication control device 40 determines that the information of the point to be used is included in the used position information (step S72; used point), the communication control device 40 implements point protection for this point (step S73), and FIG. 24 End the procedure shown in.

On the other hand, when the communication control device 40 determines that the usage position information includes the information of the area to be used (step S72; usage area), the communication control device 40 implements area protection for this area (step 74). The procedure shown in FIG. 24 is completed.

In the case of FPU, examples of radio stations subject to point protection may include FPU transmitting / receiving stations of model 1, receiving stations of models 2, 3, 4, and 6. On the other hand, the radio stations subject to area protection may include FPU transmitting stations of models 2 to 6, receiving stations of models 4, and the like.

At the time of this selection, the usage position information of the corresponding radio station is predicted using the usage position information of other radio stations, and after selecting the primary system protection method using that information, point protection or area protection is implemented. You can do it.

Further, when the communication control device 40 determines that the usage pattern is unscheduled usage (step S71; unscheduled usage), the usage position information includes either the usage candidate point information or the usage candidate area information. It is determined whether or not (step S75). The usage candidate points are given to the usage location information as points that may be used. The use candidate area is given to the use position information as an area that may be used such as DPA.

When the communication control device 40 determines that the usage position information includes the information of the usage candidate point (step S75; usage candidate point), the communication control device 40 implements dynamic point protection for this point (step S76). The procedure shown in FIG. 24 is completed.

On the other hand, when the communication control device 40 determines that the usage position information includes information on a plurality of usage candidate areas such as DPA (step S75; usage candidate area), dynamic area protection is provided for this area. (Step 77), and the procedure shown in FIG. 24 is completed.

At the time of this selection, the communication control device predicts the points where the corresponding radio station may be used and the usage candidate area such as DPA by using the usage position information of another radio station, and the information is used. After selecting the primary system protection method, dynamic point protection or dynamic area protection may be implemented.

<6-3-3. Supplementary information on point protection and area protection for planned use ＞
If the usage position information is not included in the usage schedule, or if the communication control device itself wants to set a new point or area to be protected, the communication control device uses the usage position information of another radio station to be communicated or the antenna at the time of use. The information may be used to predict points and areas to be protected and to select and implement primary system protection methods. At this time, the control unit 44 of the communication control device 40 determines the protection target point when the protection target point and the protection target area are not included in the usage schedule of the radio station, or when the protection target point and the protection target area are newly set. And functions as a processing unit that predicts the protected area.

When the point or area is not included in the usage location information, the operator of the primary system does not want to know the usage location of the radio station in advance, or the usage location is not known until just before due to unscheduled use, etc. It may include the case where the operator of the primary system cannot provide the usage location information.

For example, a range within a certain distance from the point where the communication target radio station of a certain radio station A is arranged may be set as the protection target area of the radio station A. At this time, the control unit 44 of the communication control device 40 predicts the protection target point and the protection target area based on the usage position information of the second radio station different from the first radio station which is the radio station of the primary system. Functions as a processing unit.

Further, for example, as shown in FIG. 25, CINR (Carrier to Interference and Noise Ratio) is required when the fixed station 200 receives a signal from the mobile station 300 at an arbitrary point by using the position information of the fixed station 200. An area satisfying the value may be calculated, and the area satisfying the required value may be _{designated as the protected area PA 1 of the mobile station 300.} For example, good areas satisfying the maximum distance D ₁ which satisfy the required CINR for protection area. Specifically, as an example, the range of coordinates (x, y) satisfying the following equation (1) is set as the protection target area. In the example shown in FIG. 25, the control unit 44 of the communication control device 40 of the first radio station (for example, mobile station 300) is based on the usage position information of the second radio station (for example, fixed station 200). It functions as a processing unit that calculates the communication quality (for example, CINR) when the signal is received by the second radio station, and predicts the protection target point and the protection target area based on the calculated communication quality. Note that FIG. 25 is a diagram showing an example of a protected area of the mobile station.

Further, the protected area may be a range in which the received power from a certain mobile station satisfies a predetermined value in the fixed station. Specifically, as an example, the range of coordinates (x, y) satisfying the following equation (2) is set as the protection target area.

Further, the range in which the signal from the fixed station satisfies the desired CINR and the received power may be set as the protected area of the mobile station.

The coordinates (x, y) at this time may not be a continuous range but may be a set of the protection points. Further, the above coordinates may be three-dimensional coordinates in consideration of the antenna height and the like.

Further, the area to be protected may be predicted by using the area where the mobile station used at this time is used as the position information. For example, the entire position of the mobile station 300b where the signal from the mobile station 300b always satisfies the required communication quality in the mobile station 300a moving in a certain usage area (for example, usage area UA _{1) is protected by the mobile station 300b.} It may be an area. As shown in FIG. 26, the inside of the maximum distance D ₂ which satisfy the required CINR and necessary received power, good for protection. Further, as shown in FIG. 26, the range in which the signal from the mobile station 300a moving in a certain usage area (for example, the usage area UA ₁ ) always satisfies the required communication quality in the mobile station 300b is set in the mobile station 300b. It may be the protected area PA _2. In the example shown in FIG. 26, the control unit 44 of the communication control device 40 of the first radio station (for example, mobile station 300b) is based on the usage position information of the second radio station (for example, mobile station 300a). It functions as a processing unit that calculates the communication quality (for example, CINR and received power) when the signal is received by the second radio station, and predicts the protection target point and the protection target area based on the calculated communication quality. Note that FIG. 26 is a diagram showing an example of a protected area of the mobile station.

Further, when the area where the mobile station 300a is used can be specified, but the position of the fixed station (200a or 200b) is unknown, the area where the mobile station 300a is used (for example, the usage area UA) is shown as shown in FIG. 27. _{From 1 ), the protected area PA 3} of the fixed station (200a or 200b) may be predicted. For example, a range in which the signal from the mobile station 300a satisfies the desired CINR and received power may be the protected area of the fixed station (200a or 200b). Note that FIG. 27 is a diagram showing an example of a protected area of a fixed station.

A certain margin may be provided in these protected areas (see FIGS. 25 to 27).

In addition, the protected area may be predicted according to the reference for preparing a PPA as described in Non-Patent Document [6].

Further, when the information of the range R ₁ of the antenna is rotated a fixed station 200 or mobile station 300a is given, the protected area PA ₄ of the mobile station 300b may be limited as shown in FIG. 28. At this time, the antenna rotation range may be three-dimensional in consideration of not only Azimuth and Boresight but also the antenna installation height and Down tilt. Further, the area to be protected may be an area in which a certain margin is provided in the antenna rotation range. In the example shown in FIG. 28, the control unit 44 of the communication control device 40 is a primary system (for example, mobile) based on the antenna information of the antenna used in the second radio station (for example, fixed station 200 or mobile station 300a). It functions as a processing unit that predicts the protected point and the protected area (of the station 300b). Note that FIG. 28 is a diagram showing an example of a protected area of the mobile station.

In addition, the protected point area of the primary radio station may be estimated by using the information of the radio stations of different radio systems.

For example, within a certain distance from the usage position of the fixed station of a certain wireless system EX1, the moving range of the mobile station of the system EX1 is set, and this moving range is the protection of the mobile station of the wireless system EX2 attached to the mobile station of the system EX1. It may be a target area. At this time, the control unit 44 of the communication control device 40 is based on the usage position information of a third radio station (for example, a fixed station of the wireless system EX1) of the wireless system different from the primary system, and the control unit 44 of the communication control device 40 is based on the usage position information of the primary system (for example, the wireless system EX2). It functions as a processing unit that predicts the protected points and protected areas of the mobile station.

Further, for example, by calculating the required CINR at the fixed station 200 of the wireless system EX1 as shown in FIG. 29, the moving range of the mobile station 300a_for_EX1 of the system EX1 is predicted, and this moving range is set to the mobile station 300a_for_EX1 of the system EX1. features have been, may be a protected area _PA 5 _{_for_300b} mobile station 300b_for_EX2 wireless system EX2. Note that FIG. 29 is a diagram showing an example of a protected area of the mobile station. In the example shown in FIG. 29, the control unit 44 of the communication control device 40 uses the signal of the third radio station as the radio station of the primary system based on the usage position information of the third radio station (for example, the mobile station 300a). The communication quality when received by the first radio station (for example, fixed station 200) is calculated, and the usage position information of the third radio station is predicted based on the calculated communication quality, and the predicted position information is predicted. Functions as a processing unit used as a protected point or protected area of a wireless station of the primary system (for example, mobile station 300b of the wireless system EX2). Note that FIG. 29 is a diagram showing an example of a predicted protection target point and protection target area.

For example, the wireless system EX1 may be a TSL used for video transmission from an FPU receiving station to a studio of a broadcasting station, a microwave FPU using the 5.7 GHz band, and the wireless system EX2 may be a 2.3 GHz FPU receiving station.

Further, the antenna information when the radio stations of different wireless systems are used may be used to predict the usage position of the radio station to be communicated, and this usage position may be used as the protection target point area of the primary radio station. At this time, the control unit 44 of the communication control device 40 functions as a processing unit that predicts the usage position information of the radio station of the primary system based on the antenna information of the antenna used in the third radio station.

In addition, the location information and antenna information when using different systems are used to predict the usage points and areas of the primary radio station and the antenna information when using, and from these, the protection target point area of the primary radio station to be communicated. May be estimated.

Further, for example, by calculating the required CINR at the fixed station 200 of the wireless system EX1 as shown in FIG. 30, the moving range of the mobile station 300a of the wireless system EX1 is predicted, and this is calculated by the mobile station 300b of the wireless system EX2. By setting the protected area PA ₆ _for_300b and further calculating the required CINR at the mobile station 300b of the wireless system EX2, the protected point area PA ₇ _for_300c of the mobile station 300c of the wireless system EX2 may be predicted. In the example shown in FIG. 30, the control unit 44 of the communication control device 40 uses the usage position information of the third radio station (for example, the mobile station 300a) as the fourth radio station (mobile station 300b) which is the radio station of the primary system. ) Is used, the communication quality obtained by receiving the signal of the fifth radio station (mobile station 300c), which is the radio station of the primary system, at the fourth radio station is calculated, and the first communication quality is calculated based on the calculated communication quality. It functions as a protection target point of the radio station 5 and a processing unit for predicting the protection target point. Note that FIG. 30 is a diagram showing an example of a predicted protection target point and protection target area.

Further, this prediction method may be used in combination even when the usage position information already includes a point or an area. For example, it may be used when the communication control device 40 predicts a more accurate protected point area for the purpose of increasing the communication opportunity of the secondary system.

<6-3-4. Supplementary information on point protection and area protection for unscheduled use ＞
Since the FPU receiving station of the model 1 of the FPU may include a point that may be used in the usage position information, dynamic point protection is performed for this point. Further, since the FPU transmitting station of model 1 and the transmitting / receiving station of model 5 can be given information on an area that may be used such as DPA, dynamic area protection can be implemented for this area. ..

In addition, the communication control device 40 independently generates a DPA by dividing the protected area into a plurality of areas based on a certain standard for the purpose of increasing the usage opportunities of the secondary system and reliably protecting the primary system. You may.

It is not necessary for the communication control device 40 to generate the DPA independently only when the DPA is not given in the usage schedule information or the like. For example, the usage position information is described in <6-3-3. The case where the prediction is made by the same method as> is applicable. In addition, even if the usage schedule information includes the DPA itself, the communication control device 40 independently determines the DPA in order to increase the usage opportunities of the secondary system and ensure the protection of the primary system. You may create it.

The parameters required for the communication control device to generate the DPA, such as the area division size, are set in advance by the primary system operator, public business organization, etc., as well as government agencies, third party organizations, etc., and are external databases. It can be obtained from the usage schedule information of the primary system and the primary system.

In addition, regardless of whether or not these parameters are provided, the hardware performance and layout of the communication devices of the primary system and the secondary system and the sensors that detect the use of the primary system, the surrounding environment, the required standards for protection, etc. The communication control device 40 may independently set parameters such as the division size of the area by using the information of.

For example, for the purpose of more reliably protecting the primary system, parameters such as the division size of the area required for the communication control device 40 to generate the DPA may be determined according to the detection accuracy of using the primary system. At this time, the control unit 44 of the communication control device 40 functions as a processing unit that determines the DPA in which the protected area is divided into a plurality of areas by using the parameters set based on the usage detection accuracy of the radio station.

For example, the division size of the DPA may be determined based on the position information accuracy of the sensor or the primary radio station. For example, if the accuracy of the positioning function such as GPS installed in the primary radio station is not sufficient, the sensor or primary can be used by increasing the division size of the DPA or by allowing the overlap of each DPA to provide a margin. It may be set so as to be surely protected even if the position of the radio station is deviated. At this time, the control unit 44 of the communication control device 40 determines the DPA in which the protected area is divided into a plurality of areas by using the parameters set based on the detection accuracy of the primary system and the position information accuracy of the primary system. Functions as a department.

Further, for example, the division size of the DPA may be determined by reflecting the fluctuation of the detection accuracy of the primary system due to the surrounding environment such as the terrain and the building. At this time, the control unit 44 of the communication control device 40 functions as a processing unit that determines the DPA in which the protected area is divided into a plurality of areas by using the parameters set based on the fluctuation of the position information accuracy due to the surrounding environment. ..

Further, for example, DPA of different sizes may be set in different areas based on the arrangement status of a sensor (an example of a detection unit) for detecting the use of the primary system. A small size DPA may be set for an area where the sensors are densely arranged, and a large size DPA may be set for an area where the sensors are sparsely arranged. At this time, the control unit 44 of the communication control device 40 serves as a processing unit that determines the DPA in which the protected area is divided into a plurality of areas by using the parameters set based on the arrangement information of the detection unit that detects the primary system. Function.

Further, when it can be guaranteed that the usage detection accuracy of the primary system is high, for example, when the primary radio station has a highly accurate positioning function and the position information is included in the usage notification of the primary system, the protection point 1 A grid containing only one may be used as one DPA.

For example, the DPA division size should be as small as possible within the range that meets the protection standards, with the aim of reducing the number of secondary radio stations that are required to stop radio waves or change parameters due to the use detection of the primary system and increase the usage opportunities of the secondary system. It may be set small.

Further, two or more DPAs having different sizes may be set in the same area, and the most suitable DPA may be selected when the use of the primary system is detected to control the secondary system. For example, when it is notified at the same time that the accuracy of the location information of the primary system is not sufficient, a DPA of as large a size as possible is selected from a plurality of DPA so that the obtained accuracy can be sufficiently protected. At this time, the control unit 44 of the communication control device 40 functions as a processing unit that determines DPA of different sizes in the same area.

Further, the division size of the DPA may be determined based on the information of the secondary radio station. For example, if the accuracy of the positioning function such as GPS mounted on the secondary radio station is not sufficient, the secondary radio station can be divided by increasing the division size of the DPA or by allowing the overlap of each DPA to provide a margin. It may be set so that it is surely protected even if the position of is deviated. These accuracy may be judged not only by hardware performance such as sensors and positioning functions, but also by the surrounding environment such as terrain and buildings. At this time, the control unit 44 of the communication control device 40 determines the DPA in which the protected area is divided into a plurality of areas by using the parameters set based on the positioning function accuracy of the radio station of the radio system different from the primary system. Functions as a processing unit.

Further, as shown in FIG. 31, the entire moving area of the mobile station 300 _{is divided into a plurality of areas (for example, areas MA 1 to MA 3} ), and the signals from the mobile station 300 to the fixed station 200 are 9494 in each of the moving areas. May calculate the range that satisfies the required values and use them as the DPA corresponding to the fixed station. That is, the DPA for each travel area can overlap. In the division of the moving area, the size or the like may be changed according to the position of the mobile station 300 and the signal detection accuracy. In the example shown in FIG. 31, the control unit 44 of the communication control device 40 divides the entire moving area of the radio station (for example, the mobile station 300) into a plurality of areas, and the radio station (for example, fixed) to be communicated in each divided area. It functions as a processing unit that determines the protected area to be set for the station 200) as a DPA. Note that FIG. 31 is a diagram showing an example of a dynamic protection target area for each area in which the entire movement area is divided.

<6-4. Point area protection considering the antenna rotation range>
In CBRS point area protection, parameters related to the antenna rotation range of the radio station to be protected (Down tilt, Elevation, Azimuth, etc.) such as the Earth station of Fixed-Satellite Service are given as values, or the antenna such as Federal Incumbent. It is assumed that there will be no problem in any direction.

On the other hand, in a primary system such as FPU, the parameters such as Down tilt, Elevation, and Azimuth of the antenna change every time the radio station is used, or the antenna rotates during use and the parameters such as Down tilt, Elevation, and Azimuth. Is expected to fluctuate.

In the embodiment of the present disclosure, the point area protection assuming that the antenna of the radio station rotates during the planned use and the parameters such as Down tilt, Elevation, and Azimuth change, and the notification is given when the primary radio station is used unscheduled. Dynamic point area protection is implemented using parameters such as antenna orientation.

<6-4-1. Point area protection considering antenna rotation during planned use ＞
At the time of use Set a plurality of protected antenna directions within the rotation range of the antenna being used, which is acquired from the antenna information, according to the specified reference. Then, point protection or area protection is performed assuming that the antennas of the primary radio station face each protected antenna direction, and the secondary radio station is provided with primary system protection in all protected antenna directions. By instructing, the primary system can be reliably protected against rotation while the antenna is in use.

For example, if the range Azi_R ₁ of Azimuth antenna is rotated in use as the usage time of the antenna information as shown in FIG. 32 is given, on the circumference of a horizontal plane around the position P ₁ of the antenna, the range of Azimuth Is divided by a constant angle Δθ. Then, from the center, that antenna position P ₁ of the circle, the direction of the center of each range divided circumferentially, it is set as a protected antenna direction PAD _1. Point protection or area protection is performed in each of the set protection target antenna directions. In the example shown in FIG. 32, the control unit 44 of the communication control device 40 sets the protection target antenna direction at regular intervals within the rotation range of the antenna being used in the radio station, thereby setting the protection target point or the protection target area. It functions as a processing unit that determines. Further, the control unit 44 functions as a processing unit that sets a two-dimensional protection target antenna direction by dividing the range of Azimuth that the antenna rotates during use at a constant angle. Note that FIG. 32 is a diagram showing a setting example of the two-dimensional protection target antenna direction.

The antenna information when using the Down tilt, range Azimuth Dt_R _1, when given as Azi_R ₂ is spherical around the position _{P 2} of the antenna as shown in FIG. 33, given Down tilt, the Azimuth The range is divided into constant angles Δφ and Δθ to create a three-dimensional grid. The center of the sphere, sets the orientation of the center of each grid for protection antenna direction PAD ₂ words from the position P ₂ of the antenna. In the example shown in FIG. 33, the control unit 44 of the communication control device 40 divides the Azimuth range and the Down tilt range, in which the antenna rotates during use, at a constant angle to provide a three-dimensional protection target antenna direction. Functions as a processing unit for setting. Note that FIG. 33 is a diagram showing a three-dimensional setting example of the antenna direction to be protected.

As an example in which the antenna information at the time of use is given in the range of values, it is assumed that the FPU models 2 to 6 are planned and used.

In addition, the range of antenna parameters such as Down tilt, Azimuth, and Boresight in use is predicted by using the protected points and areas of the radio station to be communicated and the antenna information at the time of use, and the antenna direction to be protected is included in the range. May be set. At this time, the control unit 44 of the communication control device 40 functions as a processing unit that predicts the rotation range of the antenna in use by using the protection target area or the protection target point of the radio station that is the communication partner.

For example, as shown in FIG. 34, two tangent lines are drawn from the antenna position P3_WSB of the radio station B with respect to the protected area PA_WSA of the radio station A represented two-dimensionally, and the two straight lines are the radio station B. Let the angle at the time of intersection at the position of be the range Azi_R ₃ of the Azimuth in use. The protected antenna direction as described above may be set in the range Azi_R _{3 of this Azimuth.} In the example shown in FIG. 34, the control unit 44 of the communication control device 40 determines the angle formed by the two tangents drawn from the radio station to the protected area of the radio station to be communicated with by the antenna being used. It functions as a processing unit within the range of rotating Azimuth. Note that FIG. 34 is a diagram showing a setting example of the two-dimensional protection target antenna direction.

Further, the range of Down tilt and Azimuth that the antenna can take during use may be estimated in three dimensions. For example, the range of Down tilt and Azimuth that the antenna can take may be estimated from the protected area of the communication target. As shown in FIG. 35, the protected area PA_WSA radio station A, and projected onto the sphere centered on the antenna position _P 4 _WSB radio stations B. The area on the projected spherical surface may be set to the Down tilt and Azimuth ranges Dt_R ₂ and Azi_R ₄ that can be taken by the antenna of the radio station B during use, and the direction of the antenna to be protected may be set. In the example shown in FIG. 35, the control unit 44 of the communication control device 40 projects the protected area of the radio station to be communicated with respect to the sphere centered on the radio station of the primary system, and on the projected spherical surface. It functions as a processing unit that sets the area of Azimuth and Down tilt that the antenna can take during use. Note that FIG. 35 is a diagram showing a three-dimensional setting example of the antenna direction to be protected.

Further, the prediction of the direction of the antenna to be protected may be used in combination even when the antenna information at the time of use is provided. For example, when a radio station with a complicated usage area becomes a communication partner, the primary system protection is implemented with higher accuracy by predicting an accurate value than the range of antenna parameters provided in advance. , It is possible to increase the communication opportunity of the secondary system.

Also, each parameter of the antenna does not necessarily have to be independent. For example, a function that takes a Down tilt value as an argument may be given a range of Azimuth values.

In addition, the protection target of the radio station may be an area instead of a point. In that case, the protection target antenna direction is set for each protection point set in the protection target area, and then the primary system protection is performed. conduct.

It is not necessary for all the protection points in the same protection target area to have the same protection target antenna information, and different protection target antenna directions may be set for each protection point. For example, as shown in FIG. 36, at each protection point (pp _{1 to pp 3} ) in the protection target area PA_WSA of the radio station A, the direction of the protection target antenna is the direction in which the radio station B exists (for example, each protection point and the antenna). The direction of each straight line connecting the position P5_WSA) may be used. Further, the antenna direction to be protected may have a parameter other than Azimuth. Further, the radio station B does not necessarily have to be a fixed station. Note that FIG. 36 is a diagram showing a setting example of the antenna direction to be protected, which is different for each protection point.

The angle when setting the direction of the antenna to be protected is predetermined by the legal system, etc. according to the required accuracy of primary system protection, etc., as well as the operator of the primary system, public business organizations, etc., as well as administrative organizations and third party organizations. Etc. can be provided.

Further, the angle at which the direction of the antenna to be protected may be set may be changed depending on the computing power of the communication control device 40. For example, when the computing power of the communication control device 40 is high, the direction of the antenna to be protected may be set at an angle smaller than a preset angle. At this time, the control unit 44 of the communication control device 40 functions as a processing unit that changes the interval when setting the direction of the antenna to be protected according to the computing power of the own machine.

<6-4-2. Dynamic point area protection considering the antenna direction notified at the time of unscheduled use ＞
Using a dynamic antenna rotation range (hereinafter, appropriately referred to as "DARR"), which is obtained by dividing the antenna rotation range that may be used by the antenna of the radio station to be protected by a certain standard. By performing dynamic point area protection, the communication control device 40 instantly protects the antenna direction notified at the time of unscheduled use. At this time, the control unit 44 of the communication control device 40 selects dynamic point protection or dynamic area protection by using DARR in which the rotation range of the antenna that can be taken by the antenna of the radio station is divided by a certain standard. Functions as a processing unit.

For each DARR, a list of secondary radio stations that need to stop radio waves or change parameters when unscheduled use is detected is created, and when the use is actually detected, the communication control device 40 is notified. Instruct the secondary radio station according to the instruction list corresponding to DARR including the antenna direction.

Further, when creating the list of the secondary radio stations, the communication control device 40 sets a plurality of protected antenna directions in the DARR and implements dynamic point / area protection as in the case of planned use. good. At this time, the control unit 44 of the communication control device 40 functions as a processing unit that sets a plurality of protected antenna directions inside the DARR.

In addition, when DARR is used for dynamic area protection, DARR is set for each DPA, so a list of secondary radio stations is created for each combination of DPA and DARR. A common DARR may be used for all DPA, or different DARRs may be used for each.

In addition, DARR can be provided as antenna information when using scheduled information, and external databases, etc. that are preset by the operator of the primary system, public business organizations, etc., as well as government agencies, third party organizations, etc. It may be obtained from.

If DARR is not provided and the antenna information at the time of use includes an antenna rotation range that may be used, the communication control device 40 itself generates DARR from the given antenna rotation range. You can.

For example, the communication control device 40, assumes a circle on a horizontal plane around the radio station of the primary system antenna (position P ₆ _PWS) as shown in Figure 37, the possibility that the radio station is available during unscheduled available A DARR (for example, DARR _{1 to} DARR ₃ ) may be obtained by dividing a range Azi_R _{5 of a certain Azimuth into a plurality of ranges.} In the DARR, the above-mentioned protected antenna directions may be set, and an instruction list to the secondary radio station may be created so that the primary system protection is achieved for all the protected antenna directions in the DARR. In the example shown in FIG. 37, the control unit 44 of the communication control device 40 sets a two-dimensional DARR by dividing the range of the Azimuth of the antenna that may be used by a certain angle. Functions as. Note that FIG. 37 is a diagram showing a setting example of a two-dimensional dynamic antenna rotation range.

The communication control device 40, for example as shown in FIG. 38, assuming a sphere centered on the antenna (position P ₇ _PWS) radio station of the primary system, possibly the primary radio station takes during unscheduled available _{DARR may be obtained by dividing the range Dt_R 3} and Azi_R ₆ of Azimuth / Down tilt into several three-dimensional regions on the sphere. In each DARR, the above-mentioned protected antenna directions may be set, and an instruction list to the secondary radio station may be created so that the primary system protection is achieved for all the protected antenna directions in the DARR. .. In the example shown in FIG. 38, the control unit 44 of the communication control device 40 divides the Azimuth range and the Down tilt range that can be taken by the antenna of the radio station of the primary system at a constant angle, thereby causing a three-dimensional DARR. Functions as a processing unit for setting. Note that FIG. 38 is a diagram showing a setting example of a three-dimensional dynamic antenna rotation range.

If the antenna rotation range that may be used as antenna information during use is not included, it will be used from the usage position information of other radio stations that can be the communication target, as in the case of planned use. It may be used to set the DARR after predicting the possible antenna rotation range. At this time, the control unit 44 of the communication control device 40 functions as a processing unit for setting the DARR using the antenna rotation range that may be used, which is predicted from the information of other radio stations that can be communication partners. ..

Further, the communication control device 40 may generate the DARR independently, except when the DARR or the antenna rotation range which may be used cannot be acquired. For example, in order to increase the usage opportunities of the secondary system and to ensure the protection of the primary system, the communication control device 40 may independently determine and newly set the DARR.

In addition, the parameters required when setting DARR, such as the division size of DARR, are set in advance by the operator of the primary system, public business organizations, etc., as well as government agencies, third party organizations, etc., and are set in advance by external databases, primary organizations, etc. It can be obtained from system usage schedule information, etc.

In addition, regardless of whether or not these parameters are provided, the hardware performance and layout of the communication devices of the primary system and the secondary system and the sensors that detect the use of the primary system, the surrounding environment, the required standards for protection, etc. The communication control device 40 may independently set parameters such as the division size of the DARR by using the information of.

For example, for the purpose of more reliably protecting the primary system, parameters such as the division size required for the communication control device 40 to generate DARR are determined according to the detection accuracy of the antenna direction when using the primary radio station. You can. At this time, the control unit 44 of the communication control device 40 functions as a processing unit for setting the DARR by using the parameters set based on the detection accuracy of the antenna direction when the radio station is used.

For example, the division size of DARR may be determined based on the detection accuracy of the antenna direction by the sensor. For example, if the accuracy of estimating the antenna direction of the primary radio station by the sensor is low, a margin is provided by increasing the division size of the DARR or overlapping each DARR, and even if the detected antenna direction is deviated. It may be set to ensure protection. At this time, the control unit 44 of the communication control device 40 functions as a processing unit for setting the DARR by using the parameters set based on the detection accuracy of the antenna direction by the sensor that detects the antenna direction.

Further, the communication control device 40 has high detection accuracy of the antenna direction of the primary radio station, for example, when the operator of the primary system notifies the correct antenna direction when the primary radio station is used. If it can be guaranteed, a DARR that includes only one protected antenna direction may be set.

Further, the communication control device 40 may set the division size of the DARR as small as possible within a range satisfying the predetermined protection standard for the purpose of increasing the usage opportunity of the secondary system.

Further, the communication control device 40 sets two or more DARRs having different division sizes in the antenna rotation range that may be used, selects the most suitable DARR when detecting the use of the primary system, and controls the secondary system. You may. For example, when it is notified at the same time that the detection accuracy of the antenna direction of the primary system is not sufficient, select the DARR with the largest possible division size from multiple DARRs and select the DARR with the largest possible division size from multiple DARRs so that the accuracy can be sufficiently protected. Give instructions to. At this time, the control unit 44 of the communication control device 40 functions as a processing unit that sets two or more DARRs having different division sizes in the antenna rotation range that may be used.

Further, when the antenna direction notified by the usage detection of the primary system is given in a range, the communication control device 40 gives an instruction to the secondary radio station by using a list of two or more DARRs that can cover this range. You may put it out. Further, if the notified antenna direction contains a plurality of values, the secondary radio station may be instructed according to the list of two or more DARRs including the values.

Further, when the antenna direction is not notified by the usage detection of the primary system, the communication control device 40 may predict each other's antenna directions by using the positional relationship between the primary radio stations communicating with each other. At this time, if it is expected that an error will occur in the prediction result, the influence of this error may be minimized by providing an appropriate margin.

<< 7. Modification example >>
The above-described embodiment shows an example, and various modifications and applications are possible.

<7-1. Modification example related to system configuration>
The communication control device 40 of the present embodiment is not limited to the device described in the above-described embodiment. For example, the communication control device 40 may be a device having a function other than controlling the base station device 20 that secondarily uses the frequency band in which the frequency is shared. For example, the network manager may have the function of the communication control device 40 of the present embodiment. At this time, the network manager may be, for example, a C-BBU (Centralized Base Band Unit) having a network configuration called a C-RAN (Centralized Radio Access Network) or a device including the same. Further, the base station (including the access point) may have the function of the network manager. These devices (network manager, etc.) can also be regarded as the communication control device 40.

In the above-described embodiment, the communication system 1 is a first wireless system and the base station device 20 is a second wireless system. However, the first radio system and the second radio system are not limited to this example. For example, the first wireless system may be a communication device (for example, a wireless communication device 10), and the second wireless system may be a communication system (communication system 2). The wireless system appearing in the present embodiment is not limited to a system composed of a plurality of devices, and can be appropriately replaced with a "device", a "terminal", or the like.

Further, in the above-described embodiment, the communication control device 40 is assumed to be a device belonging to the communication system 2, but it does not necessarily have to be a device belonging to the communication system 2. The communication control device 40 may be an external device of the communication system 2. The communication control device 40 may not directly control the base station device 20, but may indirectly control the base station device 20 via a device constituting the communication system 2. Further, a plurality of secondary systems (communication systems 2) may exist. At this time, the communication control device 40 may manage a plurality of secondary systems. In this case, each secondary system can be regarded as a second wireless system.

In general, in frequency sharing, an existing system that uses the target band is called a primary system, and a secondary user is called a secondary system, but the primary system and the secondary system may be replaced with other terms. The macro cell in the Heterogeneous Network (HetNET) may be used as the primary system, and the small cell or relay station may be used as the secondary system. Further, the base station may be the primary system, and the relay UE or the vehicle UE that realizes D2D or V2X (Vehicle-to-Everything) existing in the coverage may be the secondary system. The base station is not limited to the fixed type, and may be a portable type / mobile type.

Furthermore, the interface between each entity may be wired or wireless. For example, the interface between each entity (communication device, communication control device, or terminal device) that appears in the present embodiment may be a wireless interface that does not depend on frequency sharing. Examples of the wireless interface that does not depend on frequency sharing include a wireless interface provided by a mobile communication operator via a licensed band, a wireless LAN communication that uses an existing unlicensed band, and the like.

<7-2. Other variants>
The control device for controlling the wireless communication device 10, the base station device 20, the terminal device 30, the communication control device 40, or the proxy device 50 of the present embodiment may be realized by a dedicated computer system or a general-purpose computer system. It may be realized by.

For example, a program for executing the above operation is stored and distributed in a computer-readable recording medium such as an optical disk, a semiconductor memory, a magnetic tape, or a flexible disk. Then, for example, the control device is configured by installing the program on a computer and executing the above-mentioned processing. At this time, the control device may be a wireless communication device 10, a base station device 20, a terminal device 30, a communication control device 40, or an external device (for example, a personal computer) of the proxy device 50. Further, the control device is an internal device (for example, control unit 24, control unit 34, control unit 44, or control unit) of the wireless communication device 10, the base station device 20, the terminal device 30, the communication control device 40, or the proxy device 50. 54) may be used.

Further, the communication program may be stored in a disk device provided in a server device on a network such as the Internet so that it can be downloaded to a computer or the like. Further, the above-mentioned functions may be realized by the collaboration between the OS (Operating System) and the application software. In this case, the part other than the OS may be stored in a medium and distributed, or the part other than the OS may be stored in the server device so that it can be downloaded to a computer or the like.

Further, among the processes described in the above-described embodiment, all or a part of the processes described as being automatically performed can be manually performed, or the processes described as being manually performed can be performed. All or part of it can be done automatically by a known method. In addition, the processing procedure, specific name, and information including various data and parameters shown in the above document and drawings can be arbitrarily changed unless otherwise specified. For example, the various information shown in each figure is not limited to the illustrated information.

Further, each component of each of the illustrated devices is a functional concept, and does not necessarily have to be physically configured as shown in the figure. That is, the specific form of distribution / integration of each device is not limited to the one shown in the figure, and all or part of the device is functionally or physically dispersed / physically distributed in arbitrary units according to various loads and usage conditions. Can be integrated and configured.

Further, the above-described embodiments can be appropriately combined in a region where the processing contents do not contradict each other. Further, the order of each step shown in the sequence diagram or the flowchart of the present embodiment can be changed as appropriate.

<< 8. Conclusion >>
As described above, according to one embodiment of the present disclosure, the communication control device 40 includes a plurality of dynamic or static protection methods based on the usage pattern and usage position information of the radio station of the primary system. Select one of the primary system protection methods. Then, the communication control device 40 protects the radio station of the primary system based on the selected protection method.

Thereby, for example, in the FPU operated by the broadcasting company in Japan, the primary system can be appropriately protected from the secondary system.

For example, one of the differences between FPU and the primary system that has been conventionally assumed in CBRS, TVWS, etc. is that the radio station can move, so the usage position is a point or area for each usage model. It is to do. Furthermore, there are two usage patterns, and the information indicated as the usage position at the time of unscheduled usage is only a candidate area. In the embodiment of the present disclosure, the communication control device 40 can analyze the information provided by the primary system and switch the primary system protection method depending on the usage model and usage mode. As a result, the primary system can be adequately protected from the secondary system.

Another feature of the FPU is that the antenna of the radio station that is the communication partner can move in response to the movement of the radio station. For example, in the planned use of the above-mentioned models 2 to 6, since there is a possibility that the antenna of the receiving station is rotated following the movement of the transmitting station, it is necessary to protect the entire rotation range. Further, in the unscheduled use of the model 1 and the model 5 described above, when it is detected that the transmitting station is used in the candidate area, the receiving station antenna may be directed in that direction. You need to protect it so that you can look anywhere. In the embodiment of the present disclosure, the communication control device 40 can realize point area protection in consideration of antenna rotation during planned use and dynamic point area protection in consideration of antenna direction notified at the time of unscheduled use. As a result, the primary system can be adequately protected from the secondary system.

Although each embodiment of the present disclosure has been described above, the technical scope of the present disclosure is not limited to each of the above-described embodiments as it is, and various changes can be made without departing from the gist of the present disclosure. be. In addition, components covering different embodiments and modifications may be combined as appropriate.

Further, the effects in each of the embodiments described in the present specification are merely examples and are not limited, and other effects may be obtained.

The present technology can have the following configurations.
(1)
Based on the usage pattern and usage location information of the radio station of the primary system, one of a plurality of primary system protection methods including dynamic or static protection methods is selected, and based on the selected protection method, A communication control device including a control unit that protects the radio station of the primary system.
(2)
The control unit
When the radio station is planned use, one of the static protection methods is selected and implemented, and when the radio station is unscheduled use, one of the dynamic protection methods is selected and implemented. The communication control device according to 1).
(3)
The control unit
Point protection is selected and implemented based on the protected points of the radio station, which is determined based on the location information used by the radio station.
The communication control device according to (2) above, wherein area protection is selected and implemented based on the protected area of the radio station, which is determined based on the usage position information of the radio station.
(4)
The control unit
When the protected point and the protected area are not included in the usage schedule of the radio station, or when the protected point and the protected area are newly set, the protected point and the protected area are predicted. The communication control device according to (3) above.
(5)
The control unit
The communication control according to (4) above, which predicts the protection target point and the protection target area based on the usage position information of the second radio station different from the first radio station which is the radio station of the primary system. Device.
(6)
The control unit
The communication quality when the signal of the first radio station is received by the second radio station is calculated based on the usage position information of the second radio station, and the protection is performed based on the calculated communication quality. The communication control device according to (5) above, which predicts a target point and the protected area.
(7)
The control unit
The communication control device according to (5), wherein the protected point and the protected area are predicted based on the antenna information of the antenna used in the second radio station.
(8)
The control unit
The communication control device according to (4) above, which predicts the protection target point and the protection target area based on the usage position information of a third radio station of a radio system different from the primary system.
(9)
The control unit
Based on the usage position information of the third radio station, the communication quality when the signal of the third radio station was received by the first radio station, which is the radio station of the primary system, was calculated and calculated. The communication control device according to (8), wherein the usage position information of the third radio station is predicted based on the communication quality, and the predicted position information is used as the protection target point or the protection target area.
(10)
The control unit
The usage position information of the third radio station is used as the usage position information of the fourth radio station which is the radio station of the primary system, and the signal of the fifth radio station which is the radio station of the primary system is used as the fourth radio station. The communication control device according to (9), wherein the communication quality received by the radio station is calculated, and the protection target point and the protection target point of the fifth radio station are predicted based on the calculated communication quality.
(11)
The control unit
The communication control device according to (8) above, which predicts the usage position information of the radio station of the primary system based on the antenna information of the antenna used in the third radio station.
(12)
The control unit
The communication control device according to (3) above, wherein a plurality of areas obtained by dividing the protected area according to a certain standard are determined as dynamic protected areas.
(13)
The control unit
The communication control device according to (12) above, wherein the dynamic protection target area is determined by dividing the protection target area into a plurality of areas using parameters set based on the usage detection accuracy of the radio station.
(14)
The control unit
In (13), the dynamic protection target area is determined by dividing the protection target area into a plurality of areas using parameters set based on the detection accuracy of the primary system and the position information accuracy of the primary system. The communication control device described.
(15)
The control unit
The communication control device according to (14) above, wherein the dynamic protected area is determined by dividing the protected area into a plurality of areas using parameters set based on the fluctuation of the position information accuracy due to the surrounding environment. ..
(16)
The control unit
The communication according to (13) above, wherein the dynamic protected area is determined by dividing the protected area into a plurality of areas by using a parameter set based on the arrangement information of the detection unit that detects the primary system. Control device.
(17)
The control unit
The communication control device according to (12) above, which determines the dynamic protection target area of a different size in the same area.
(18)
The control unit
The dynamic protection target area is determined by dividing the protection target area into a plurality of areas using parameters set based on the positioning function accuracy of a radio station of a radio system different from the primary system (12). The communication control device according to.
(19)
The control unit
The communication according to (12) above, wherein the entire moving area of the radio station is divided into a plurality of areas, and the protected area set for the radio station to be communicated in each divided area is determined as the dynamic protected area. Control device.
(20)
The control unit
The communication control device according to (3) above, wherein point protection or area protection is performed by setting the direction of the antenna to be protected at regular intervals within the rotation range of the antenna being used in the radio station.
(21)
The control unit
The communication control device according to (20), wherein the two-dimensional direction of the protected antenna is set by dividing the range of the horizontal direction in which the antenna rotates during use at a constant angle.
(22)
The control unit
The communication control according to (21), wherein the three-dimensional protection target antenna direction is set by dividing the horizontal orientation range and the tilt angle range in which the antenna rotates during use at a constant angle. Device.
(23)
The control unit
The communication control device according to (20) above, which predicts the rotation range of the antenna in use by using the protected area or the protected point of the radio station to be communicated.
(24)
The control unit
The angle formed by two tangents drawn from the radio station to the protected area of the communication partner radio station is defined as the range of the horizontal direction in which the antenna in use rotates. Communication control device.
(25)
The control unit
The protected area of the communication partner's radio station is projected onto a sphere centered on the radio station of the primary system, and the projected area on the spherical surface is the horizontal orientation that the antenna can take during use. The communication control device according to (23) above, which has a tilt angle range.
(26)
The control unit
The communication control device according to (20), wherein the interval for setting the direction of the antenna to be protected is changed according to the computing power of the own machine.
(27)
The control unit
The communication according to (3) above, wherein dynamic point protection or dynamic area protection is performed by using a dynamic antenna rotation range in which the rotation range of the antenna that can be taken by the antenna of the radio station is divided by a certain standard. Control device.
(28)
The control unit
The communication control device according to (27), wherein a plurality of protected antenna directions are set inside the dynamic antenna rotation range.
(29)
The control unit
The communication control device according to (27) above, wherein the two-dimensional dynamic antenna rotation range is set by dividing the range of the horizontally oriented direction of the antenna that may be used by a certain angle.
(30)
The control unit
The communication according to (27) above, wherein the three-dimensional dynamic antenna rotation range is set by dividing the horizontal orientation range and the tilt angle range in which the antenna rotates during use at a constant angle. Control device.
(31)
The control unit
The communication control device according to (27), wherein the dynamic antenna rotation range is set by using an antenna rotation range that may be used, which is predicted from information of another radio station that can be a communication partner.
(32)
The control unit
The communication control device according to (27), wherein the dynamic antenna rotation range is set by using a parameter set based on the detection accuracy of the antenna direction when the radio station is used.
(33)
The control unit
The communication control device according to (32), wherein the dynamic antenna rotation range is set by using a parameter set based on the detection accuracy of the antenna direction by the detection unit that detects the antenna direction.
(34)
The control unit
The communication control device according to (27), wherein two or more of the dynamic antenna rotation ranges having different division sizes are set in the antenna rotation range that may be used.
(35)
Based on the usage pattern and usage location information of the radio station of the primary system, one of a plurality of primary system protection methods including dynamic or static protection methods is selected, and based on the selected protection method, A communication control method for protecting a radio station of the primary system.

1, 2 Communication system 10 Wireless communication device 20 Base station device 30 Terminal device 40 Communication control device 50 Proxy device 60 File server 21, 31, 41, 51 Wireless communication unit 22, 32, 42, 52 Storage unit 23, 43, 53 Network communication unit 24, 34, 44, 54 Control unit 33 Input / output unit 211,311 Reception processing unit 211a Wireless reception unit 211b Multiplexing unit 211c Demodition unit 211d Decoding unit 212, 312 Transmission processing unit 212a Coding unit 212b Modulation unit 212c Multiplexing unit 212d Wireless transmission unit 213, 313 Antennas 241, 441, 541 Acquisition unit 242 Setting unit 243 Transmission unit 244 Wireless communication control unit 442 Judgment unit 443 Notification unit 444 Communication control unit 542 First transmission unit 543 Second transmission unit

Claims (14)

Based on the usage pattern and usage location information of the radio station of the primary system, one of a plurality of primary system protection methods including dynamic or static protection methods is selected, and based on the selected protection method, A control unit that protects the radio station of the primary system is provided.
The control unit uses a protected area determined based on the usage position information of another radio station to communicate with or a protection target point determined based on the usage position information of the other radio station. A communication control device that predicts the direction of the protected antenna of the radio station of the primary system. The communication control device according to claim 1, wherein the control unit performs point protection or area protection using the direction of the antenna to be protected. The control unit
Claim that one of the static protection methods is selected and implemented when the radio station is planned use, and one of the dynamic protection methods is selected and implemented when the radio station is unscheduled use. The communication control device according to 1. The control unit
Point protection is selected and implemented based on the protection target points of the radio station, which is determined based on the usage position information of the radio station.
The communication control device according to claim 1, wherein area protection is selected and implemented based on the protected area of the radio station, which is determined based on the usage position information of the radio station. The control unit
When the protection target point of the radio station and the protection target area of the radio station are not included in the usage schedule of the radio station, and when the protection target point of the radio station and the protection target area of the radio station are newly set. The communication control device according to claim 4, wherein the protected point of the radio station and the protected area of the radio station are predicted. The control unit
The communication control device according to claim 4, wherein a plurality of areas obtained by dividing the protected area of the radio station according to a certain standard are determined as a dynamic protected area. The control unit
The communication control device according to claim 6, wherein the dynamic protection target area is determined by dividing the protection target area of the radio station into a plurality of areas using parameters set based on the usage detection accuracy of the radio station. .. The control unit
Claim to determine the dynamic protection target area by dividing the protection target area of the radio station into a plurality of areas by using the parameters set based on the detection accuracy of the primary system and the position information accuracy of the primary system. 7. The communication control device according to 7. The control unit
The communication according to claim 8, wherein the dynamic protection target area is determined by dividing the protection target area of the radio station into a plurality of areas by using a parameter set based on the variation of the position information accuracy due to the surrounding environment. Control device. The control unit
The communication control device according to claim 6, wherein the dynamic protected area having a different size is determined in the same area. The control unit
A claim for determining the dynamic protection target area by dividing the protection target area of the radio station into a plurality of areas using parameters set based on the positioning function accuracy of the radio station of the radio system different from the primary system. Item 6. The communication control device according to item 6. The control unit
The communication control device according to claim 4, wherein point protection or area protection is performed by setting the direction of the antenna to be protected at regular intervals within the rotation range of the antenna being used in the radio station. The control unit
The communication control according to claim 4, wherein dynamic point protection or dynamic area protection is performed by using a dynamic antenna rotation range in which the rotation range of the antenna that can be taken by the antenna of the radio station is divided by a certain standard. Device. Based on the usage pattern and usage location information of the radio station of the primary system, one of a plurality of primary system protection methods including dynamic or static protection methods is selected, and based on the selected protection method, Protect the radio station of the primary system
The radio station of the primary system uses a protected area determined based on the usage position information of another radio station to communicate with or a protected point determined based on the usage position information of the other radio station. A communication control method that predicts the direction of the antenna to be protected.

Images