Information processing system and information processing method

Abstract

This information processing system includes an information processing device and a plurality of communication devices. The information processing device acquires a wireless access method for each of the plurality of communication devices, acquires a first priority indicating the priority of the wireless access method, and executes interference protection processing for distributing an interference margin to each of the plurality of communication devices on the basis of the wireless access method and the first priority.

Description

Information processing system and information processing method

[0001] The present invention relates to an information processing system and an information processing method.

[0002] The problem of depletion of radio wave resources (frequencies) that can be allocated to wireless communication systems has become apparent. As a means to secure the necessary radio wave resources, a dynamic spectrum access (DSA) technique is known that utilizes temporal and spatial white space within a frequency band that has already been allocated to a specific wireless communication system.

[0003] Currently, hybrid sharing is being studied as a sharing method for international mobile telecommunications (IMT) and radio local area networks (RLAN) in the high 6 GHz band (6425 to 7125 MHz) (see, for example, Non-Patent Document 16). One of the candidates for realizing hybrid sharing is the use of a frequency management database.

[0004] 47 CFR Part 15 Subpart H White Space Devices, available at: https: / / www.ecfr.gov / current / title-47 / chapter-I / subchapter-A / part-15 / subpart-H47 CFR Part 96 Citizens Broadband Radio Service, https: / / www.ecfr.gov / current / title-47 / chapter-I / subchapter-D / part-9647 CFR Part 15 Subpart E Unlicensed National Information Infrastructure Devices, https: / / www.ecfr.gov / current / title-47 / chapter-I / subchapter-A / part-15 / subpart-EETSI EN 303 387 Reconfigurable Radio Systems (RRS); Signalling Protocols and information exchange for Coordinated use of TV White Spaces; Interface between Cognitive Radio System (CRS) and Spectrum Coordinator (SC)IEEE Standard for Information technology-Telecommunications and information exchange between systems-Local and metropolitan area networks- Specific requirements- Part 19: Wireless Network Coexistence Methods“LSA Implementation”, CEPT, available at: https: / / www.cept.org / ecc / topics / lsa-implementation FY2021 Report of the New Generation Mobile Communications Systems Committee, Information and Communications Technology Subcommittee, Information and Communications Council, Consultation No. 2038, "Technical Requirements for New Generation Mobile Communications Systems," "Technical Requirements for Mobile Communications Systems in the 2.3 GHz Band," April 2021, New Generation Mobile Communications Systems Committee, available at: https: / / www.soumu.go.jp / main_content / 000745696.pdf "940660 D02 CPE-CBSD Handshake Procedures v02," Federal Communications Commission Office of Engineering and Technology Laboratory Division, October 2019, available at: https: / / apps.fcc.gov / oetcf / kdb / forms / FTSSearchResultPage.cfm?id=229297&switch=P "New TARDyS3 Portal and List of Protected Facilities in the 3.5 GHz Band," Federal Communications Commission, available at: https: / / www.fcc.gov / document / new-tardys3-portal-and-list-protected-facilities-35-ghz-band “NTIA Report: Incumbent Informing Capability (IIC) for Time-Based Spectrum Sharing”, National Telecommunications and Information Administration, available at: https: / / www.ntia.gov / report / 2021 / ntia-report-incumbent-informing-capability-iic-time-based-spectrum-sharing"953436 D01 OET Laboratory Services API”, Office of Engineering and Technology, available at: https: / / apps.fcc.gov / oetcf / kdb / forms / FTSSearchResultPage.cfm?id=50070&switch=P“WINNF-TS-0247 CBRS Certified Professional Installer Accreditation Technical Specification”, Wireless Innovation Forum, available at: https: / / winnf.memberclicks.net / assets / CBRS / WINNF-TS-0247.pdf“WINNF-SSC-0010 Signaling Protocols and Procedures for Citizens Broadband Radio Service (CBRS): WInnForum Recognized CBRS Grouping Information”, Wireless Innovation Forum, available at: https: / / winnf.memberclicks.net / assets / CBRS / WINNF-SSC-0010.pdf“WINNF-TS-0112 Requirements for Commercial Operation in the U.S. 3550-3700 MHz Citizens Broadband Radio Service Band”, Wireless Innovation Forum, available at: https: / / winnf.memberclicks.net / assets / work_products / Specifications / WINNF-TS-0112-V1.9.1%20CBRS%20Operational%20and%20Functional%20Requirements.pdfDraft 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.pdfOfcom, “Hybrid sharing: enabling both licensed mobile and Wi-Fi users to access the upper 6 GHz band”, 6 July 2023, version 2, https: / / www.ofcom.org.uk / __data / assets / pdf_file / 0031 / 263776 / condoc-upper-6ghz-review-june23-v2.pdf.

[0005] However, it is difficult to efficiently manage communication devices in a wireless communication system. For example, IMT and wireless LAN are wireless communication systems with completely different characteristics and uses. A particularly significant difference is that wireless LAN is license-free and employs a channel access method called LBT (Listen-Before-Talk), while IMT does not. Because there has never been a case where IMT and wireless LAN share the same band, there has never been a case where a single frequency management database handles both IMT and wireless LAN simultaneously. Therefore, there is a need for a frequency management database that can handle both IMT and wireless LAN simultaneously.

[0006] The present invention has been made in view of the above, and has as its object to efficiently manage communication devices in a wireless communication system.

[0007] An information processing system according to one embodiment of the present disclosure is an information processing system including an information processing device and a plurality of communication devices, wherein the information processing device includes a first acquisition unit that acquires a radio access method for each of the plurality of communication devices, a second acquisition unit that acquires a first priority indicating a priority of the radio access method, and an execution unit that executes an interference protection process to distribute an interference margin to each of the plurality of communication devices based on the radio access method and the first priority.

[0008] 1 is a diagram illustrating an example of a configuration and an example of a processing of an information processing system according to an embodiment. FIG. 2 is a diagram illustrating a specific example 1 of the basic principle of the information processing system according to an embodiment. FIG. 3 is a diagram illustrating a specific example 2 of the basic principle of the information processing system according to an embodiment. FIG. 4 is a diagram illustrating a specific example 4 of the basic principle of the information processing system according to an embodiment. A block diagram illustrating an example of a configuration of each device of the information processing system according to an embodiment. FIG. 5 is a diagram illustrating an example of a radio access method information storage unit of an information processing device according to an embodiment. FIG. 6 is a diagram illustrating an example of a first priority information storage unit of an information processing device according to an embodiment. FIG. 7 is a diagram illustrating an example of a second priority information storage unit of an information processing device according to an embodiment. FIG. 8 is a diagram illustrating an example of an interference margin information storage unit of an information processing device according to an embodiment. FIG. 9 is a diagram illustrating a specific example 1 of each process of the information processing system according to an embodiment. FIG. 10 is a diagram illustrating a specific example 2-1 of each process of the information processing system according to an embodiment. FIG. 11 is a diagram illustrating a specific example 2-2 of each process of the information processing system according to an embodiment. FIG. 12 is a diagram illustrating a specific example 3-1 of each process of the information processing system according to an embodiment. FIG. 13 is a diagram illustrating a specific example 3-2 of each process of the information processing system according to an embodiment. FIG. 14 is a diagram illustrating a specific example 3-3 of each process of the information processing system according to an embodiment. FIG. 15 is a diagram illustrating a specific example 4-1 of each process of the information processing system according to an embodiment. FIG. 16 is a diagram illustrating a specific example 4-2 of each process of the information processing system according to an embodiment. FIG. 10 is a diagram showing a specific example 4-3 of each process of the information processing system according to the embodiment. FIG. 11 is a flowchart showing an example of the overall flow of the information processing system according to the embodiment. FIG. 12 is a flowchart showing an example of the flow of interference margin information output processing of the information processing system according to the embodiment. FIG. 13 is a flowchart showing an example of the flow of interference margin notification processing of the information processing system according to the embodiment. FIG. 14 is a flowchart showing an example of the flow of communication execution processing of the information processing system according to the embodiment. FIG. 15 is a hardware configuration diagram showing an example of a computer that realizes the functions of the information processing device according to the embodiment.

[0009] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. In the following embodiments, the same components are designated by the same reference numerals, and redundant description will be omitted.

[0010] The present disclosure will be described in the following order: 1. Embodiment 1-1. Configuration and processing of information processing system SYS1 1-2. Configuration and processing of each device of information processing system SYS1 1-3. Specific examples of each process of information processing system SYS1 1-4. Processing flow of information processing system SYS1 2. Effects of embodiment 3. Hardware configuration

[0011] 1. Embodiment 1-1. Configuration and processing of information processing system SYS1 The configuration and processing of the information processing system SYS1 according to an embodiment will be described with reference to Fig. 1. Below, an example of the overall configuration of the information processing system SYS1, an example of the overall processing of the information processing system SYS1, and the effects of the overall information processing system SYS1 will be described.

[0012] (1-1-1. Example of the overall configuration of the information processing system SYS1) An example of the overall configuration of the information processing system SYS1 will be described using FIG. 1. FIG. 1 is a diagram showing an example of the configuration and processing of the information processing system SYS1 according to an embodiment. The information processing system SYS1 is composed of an information processing device 200, communication devices 110 (110A, 110B), and terminals 120 (120A, 120B). Here, the information processing device 200, the communication devices 110, and the terminals 120 are connected to each other via a predetermined communication network (not shown) so as to be able to communicate with each other via wired or wireless communication. Note that the predetermined communication network can be any of various communication networks such as the Internet or a dedicated line.

[0013] (1-1-1-1. Information processing device 200) The information processing device 200 manages the communication device 110. Note that the information processing system SYS1 shown in Fig. 1 may include a plurality of information processing devices 200. In addition, although the example in Fig. 1 shows a case where the information processing device 200 is realized by a server device, it may also be realized by a desktop PC (Personal Computer), a notebook PC, a smartphone, a cloud system, or the like.

[0014] (1-1-1-2. Communication Device 110) The communication device 110 is a wireless device that provides wireless communication services with the terminal 120 and other communication devices 110E. Here, the communication device 110A is a wireless device that can implement a wireless access method A that constantly emits radio waves, such as IMT, and is, for example, an IMT base station. The communication device 110B is a wireless device that can implement a wireless access method B that periodically emits radio waves, such as wireless LAN, and is, for example, a wireless LAN access point. Note that, hereinafter, the communication device 110A may be referred to as "communication device A," and the communication device 110B may be referred to as "communication device B."

[0015] (1-1-1-3. Terminal 120) The terminal 120 is a device, such as a smartphone, that performs wireless communication using the wireless communication service provided by the communication device 110. Here, the terminal 120A is a device that performs wireless communication using the wireless communication service of wireless access method A. The terminal 120B is a device that performs wireless communication using the wireless communication service of wireless access method B.

[0016] (1-1-2. Example of processing of the entire information processing system SYS1) An example of processing of the entire information processing system SYS1 according to the embodiment will be described. Note that the processing of steps S1 to S5 below may be executed in a different order. Also, some of the processing of steps S1 to S5 below may be omitted.

[0017] First, the information processing device 200 executes an interference margin information output process (step S1). For example, the information processing device 200 outputs interference margin information including an interference margin to be distributed to the communication device 110A and the communication device 110B.

[0018] At this time, since the radio access method information indicating the radio access method of the communication device 110A is "radio access method A," the information processing device 200 determines the interference margin and maximum allowable transmission power of the communication device 110A by a first interference protection process that distributes an interference margin taking into account cumulative interference. Furthermore, since the radio access method information indicating the radio access method of the communication device 110B is "radio access method B," the information processing device 200 determines the interference margin and maximum allowable transmission power of the communication device 110B by a second interference protection process that distributes an interference margin taking into account single-station interference. Furthermore, the information processing device 200 outputs interference margin information by referring to a first priority indicating the priority of the radio access method and a second priority indicating the frequency usage priority. Furthermore, the information processing device 200 determines access timing indicating the timing when the communication device 110 accesses the information processing device 200 by referring to the first priority and the second priority.

[0019] Second, the information processing device 200 executes a first interference margin notification process (step S2). For example, the information processing device 200 transmits interference margin information including the interference margin, the maximum allowable transmission power, and the access timing of the communication device 110A to the communication device 110A.

[0020] Third, the information processing device 200 executes a second interference margin notification process (step S3). For example, the information processing device 200 transmits interference margin information including the interference margin, the maximum allowable transmission power, and the access timing of the communication device 110B to the communication device 110B.

[0021] Fourth, the communication device 110A executes the first communication process (step S4). For example, the communication device 110A refers to the interference margin information received from the information processing device 200, and provides the terminal 120A with a wireless communication service according to "wireless access method A."

[0022] Fifth, the communication device 110B executes the second communication process (step S5). For example, the communication device 110B refers to the interference margin information received from the information processing device 200 and provides the terminal 120B with a wireless communication service according to "wireless access method B."

[0023] (1-1-3. Effects of Information Processing System SYS1) The information processing system SYS1 can provide a frequency management database and a frequency management method that can efficiently and effectively simultaneously handle a wireless access method A represented by IMT and a wireless access method B represented by wireless LAN. In other words, the information processing system SYS1 can efficiently manage the communication devices 110 of the wireless communication system.

[0024] 2 to 10, tables, and formulas, the configuration and processing of each device included in the information processing system SYS1 shown in Fig. 1 will be described. Below, the basic configuration and basic processing of the information processing system SYS1 according to the embodiment will be described, followed by a description of an example configuration of the entire information processing system SYS1 according to the embodiment, an example configuration and processing of the information processing device 200, an example configuration and processing of the communication device 110, and an example configuration and processing of the terminal 120.

[0025] (1-2-1. Basic Configuration of Information Processing System SYS1) An example of the basic configuration of the information processing system SYS1 according to the embodiment will be described with reference to FIGS. 2 and 3. FIG.

[0026] (1-2-1-1. System Model) A system model of the information processing system SYS1 according to the embodiment will be described with reference to FIG. 2. FIG. 2 is a diagram showing a specific example 1 of the basic principle of the information processing system SYS1 according to the embodiment. As shown in FIG. 2, the information processing system SYS1 is made up of the following entities: Information processing device 200, communication device 110, terminal 120, intermediate device 130, information recording device 300, and information notification device 400.

[0027] (Information Processing Device 200) The information processing device 200 is a device that has the function of determining, granting permission / authorization to use, instructing, and / or managing communication parameters of one or more communication devices 110 in accordance with one or more policies related to frequency usage. The communication parameters may include, for example, one or more frequency channels in a frequency band targeted for secondary use and maximum transmission power associated with the frequency channels. Other parameters related to wireless communication may also be included in the communication parameters. Typically, software and applications capable of executing processes based on the above functions are deployed and operated on the cloud, but for convenience of explanation, these will also be treated as the information processing device 200.

[0028] The above policy may include, for example, a policy related to authorization of secondary band use in a predetermined frequency band. Examples of the information processing device 200 realized in accordance with the above policy include, for example, a TV White Space Database (TVWSDB) (see, for example, Non-Patent Document 1) and a Geolocation Database (GLDB) that manage TV white spaces, a Spectrum Access System (SAS) that manages the Citizens Broadband Radio Service (CBRS) in the U.S. 3550-3700 MHz band (see, for example, Non-Patent Document 2), and an Automated Frequency Coordination (AFC) that manages the 6 GHz band in the U.S. and Canada (see, for example, Non-Patent Document 3). Without being limited to the above examples, any entity having a function of determining, notifying, granting permission / authorization, instructing, and / or managing communication parameters of one or more communication devices 110 in accordance with some policy related to authorization of secondary band use in a predetermined frequency band may be considered to be the information processing device 200. The information processing device 200 may have the functionality to determine communication parameters, grant usage permissions / authorizations, instruct, and / or manage the terminal 120.

[0029] The above policy may include, for example, a coexistence policy between wireless systems in a predetermined frequency band. Coexistence between wireless systems typically refers to a state in which compatibility is achieved when heterogeneous / homogeneous wireless systems with the same frequency usage priority (primary, secondary, etc.), which will be described later, share the same frequency and / or use adjacent frequencies. Examples of the information processing device 200 implemented in accordance with the above policy include, for example, a Spectrum Coordinator (SC) defined in ETSI (European Telecommunications Standards Institute) EN 303 387 (see, for example, Non-Patent Document 4), a Coexistence Manager (CM) defined in IEEE Std 802.19.1-2018 (see, for example, Non-Patent Document 5), and a Coexistence Manager (CxM) defined in CBRSA-TS-2001. Without being limited to the above example, an entity having a function of determining communication parameters, granting permission / authorization to use, instructing, and / or managing one or more communication devices 110 in accordance with some inter-wireless system coexistence policy may be considered to be the information processing device 200. The information processing device 200 may have a function of determining communication parameters, granting permission / authorization to use, instructing, and / or managing the terminal 120.

[0030] When there are multiple information processing devices 200 and all of them follow at least one of the same policies regarding frequency usage, there may be a need for the decision-making results to be equivalent among the multiple information processing devices 200. Such information processing devices 200 may have a function to synchronize information held among the information processing devices 200 and execute an equivalent decision-making process in each of them, for example.

[0031] When there are multiple information processing devices 200 and they have different policies regarding frequency usage, mutual adjustment of decision-making results with other information processing devices 200E may be required depending on the policy. Such an information processing device 200 may have, for example, a function for performing mutual adjustment, negotiation, etc. of decision-making results with other information processing devices 200E. For this purpose, the information processing device 200 may also have a function for communicating with other information processing devices 200E.

[0032] When there are multiple information processing devices 200 and they have different policies regarding frequency usage, depending on the policy, one information processing device 200-1 may utilize the decision-making result of the other information processing device 200-2 to make a decision. The information processing device 200-1 may have a function to share its own decision-making result (and associated information as necessary) with the information processing device 200-2. The information processing device 200-2 may have a function to acquire the decision-making result (and associated information as necessary) of the information processing device 200-1.

[0033] (Regarding Target Frequency Bands) The frequency usage priority according to the embodiment will be described with reference to FIG. 3. FIG. 3 is a diagram showing a specific example 2 of the basic principle of the information processing system SYS1 according to the embodiment. In the frequency band that is the target of decision-making by the information processing device 200, as described above, under the DSA system, frequency usage priority may be pre-set and defined for a wireless communication system configured of an operator using the frequency band and at least one communication device 110. Typically, as shown in FIG. 3, the following three types of frequency usage priority may be mixed, and the above priorities are also referred to as "tiers." In addition, hereinafter, the above priorities may also be referred to as second priorities (second priority). - Existing users (incumbent users) - Secondary users requiring a dedicated license (licensed secondary users) - Secondary users not requiring a dedicated license (license-exempt secondary users)

[0034] FIG. 3(1) shows an example in which a Tier 2 operator with a dedicated license for secondary use in a frequency band where an existing Tier 1 user exists implements secondary use of the frequency band. In this case, priority is given to the use of radio waves by the existing Tier 1 user in the frequency band, and the operation of the existing user's wireless communication system is not impeded. The Tier 2 secondary user is permitted to emit radio waves from the communication device 110 within the valid range of the dedicated license and within a range that does not cause fatal interference to the existing user's wireless communication system. When there are multiple operators implementing secondary use, interference coordination between secondary user operators may also be a condition for radio wave emission. The example of FIG. 3(1) corresponds to, for example, Licensed Shared Access (LSA), which has been considered in Europe as a framework for sharing the 2.3 GHz band (see, for example, Non-Patent Document 6), and dynamic spectrum sharing, which has been introduced in Japan for 2.3 GHz band mobile communication systems (see, for example, Non-Patent Document 7).

[0035] Figure 3 (2) shows an example in which another operator (Tier 2) implements secondary use of a frequency band in which an existing user (Tier 1) exists without a dedicated license. In this case, priority is given to the use of radio waves by the existing Tier 1 user in the above frequency band, and the operation of the existing user's wireless communication system is not impeded. Tier 2 secondary users are permitted to emit radio waves from their communication devices 110 to the extent that they do not cause fatal interference to the existing user's wireless communication system. In the above example, even if there are multiple operators implementing secondary use, interference coordination between secondary user operators is not guaranteed. Furthermore, interference from others must generally be tolerated. The example in Figure 3 (2) applies to TV white spaces and the 6 GHz band in which AFC is implemented (see, for example, Non-Patent Document 3).

[0036] Figure 3 (3) shows a hybrid example of Figures 3 (1) and 3 (2), in which operators with dedicated licenses for secondary use (Tier 2) and operators without dedicated licenses (Tier 3) coexist in a frequency band where existing users (Tier 1) exist, and perform secondary use of the same band. In this case, priority is given to radio wave use by existing Tier 1 users in the above frequency band, and the operation of the existing users' wireless systems is not hindered. Tier 2 secondary users are permitted to emit radio waves from their communication devices 110 within the range in which their dedicated licenses are valid and to the extent that they do not cause fatal interference to the existing users' wireless systems. When there are multiple operators within Tier 2, interference coordination between secondary user operators may also be a condition for radio wave emission. Tier 2 has priority over Tier 3 in radio wave use, and Tier 2 wireless communication systems are not hindered by Tier 3. Tier 3 secondary users are permitted to emit radio waves from their communication devices 110 to the extent that they do not cause fatal interference to Tier 1 and Tier 2 wireless communication systems. Even if there are multiple operators in Tier 3, interference coordination between Tier 3 operators is not necessarily guaranteed. In addition, Tier 3 operators must basically tolerate interference from others. The example in Figure 3 (3) corresponds to the US 3550-3700 MHz band CBRS (see, for example, Non-Patent Document 1).

[0037] The information processing device 200 typically executes decision-making taking into account the above-mentioned tier configurations that are institutionally pre-set and defined. The execution does not need to be limited to the above-mentioned contents. For example, the number of tiers may be four or more. Also, for example, the tiers may be further subdivided into the above-mentioned tier 2 and tier 3 based on different criteria. Also, for example, the tiers do not necessarily need to be pre-set and defined, but may be dynamically configured by the information processing device 200.

[0038] Hereinafter, unless otherwise specified, the terms "frequency band" and "target frequency band" refer to the frequency band that is the target of decision-making by the information processing device 200.

[0039] (Communication Device 110) The communication device 110 is a wireless device that has a function of providing wireless communication services to the terminal 120 and other communication devices 110E, such as a wireless base station (including a base station, a node B, an eNB, a gNB, and developments thereof) or a wireless access point. Representative examples of wireless interfaces used for wireless communication services with the terminal 120 and other communication devices 110E may include 4G / 5G defined by 3GPP (registered trademark) or standard wireless interfaces based on their advanced versions, and standard wireless interfaces based on wireless LAN specifications defined by IEEE 802.11WG. In addition, the communication device 110 may include not only any standard wireless interface but also a proprietary wireless interface.

[0040] The communication device 110 according to the embodiment has at least the following functions: A function to provide the information processing device 200 with information about the communication device 110 required for decision-making by the information processing device 200 in accordance with one or more policies regarding frequency usage A function to acquire the results of decision-making by the information processing device 200 A function to control its own radio wave emission and continuously emit radio waves based on the acquired results of decision-making by the information processing device 200 A function to perform wireless communication with the terminal 120 using the radio waves emitted by the above functions Note that "control of radio wave emission" here may include any processing that affects the emission of radio waves, such as starting emission, stopping emission, temporarily suspending emission, setting / changing transmission power, setting / changing frequency channels, and setting / changing other wireless parameters.

[0041] The communication device 110 according to the embodiment may have a function for acquiring information about the current location for the purpose of the above-described function. As an example of the function for acquiring information about the current location, any of the following is assumed: - A positioning function using GNSS (Global Navigation Satellite Service) or the like (also called an automated geolocation capability) - An external import function

[0042] The communication device 110 may further be provided with a function necessary for configuring a distributed antenna system (DAS) and forming one cell by combining with a plurality of other communication devices 110E. Furthermore, antennas and remote radio heads (RRHs) installed for the purpose of configuring a DAS may also be treated as the communication device 110. Regarding the above-mentioned "current location," it is desirable to treat the current location of the antenna / RRH used by the communication device 110 as the location information of the communication device 110, regardless of whether or not a DAS is configured, including in the case of an external antenna.

[0043] The communication device 110 may further include a beamforming or active antenna system function, and may have the function of constructing a cell or service area for each formed beam.

[0044] In the embodiment, it is assumed that there are two different types of communication devices 110. In the embodiment, a communication device 110 that can access the information processing device 200 without using a wireless line using the target frequency band may be referred to as a communication device 110a. Specifically, for example, a communication device 110 that can connect to the Internet via a wired connection may be considered to be the communication device 110a. Furthermore, for example, even if a communication device 110 does not have a wired Internet connection function, it may be considered to be the communication device 110a if a wireless line using a frequency band different from the target frequency band is established with another communication device 110E. Furthermore, for example, a device such as a smartphone or drone that has a side link communication function or a device-to-device wireless connection function typified by tethering, communicates with a base station via a frequency band different from the target frequency band via a backhaul link, and requires the target frequency band via an access link, may be considered to be the communication device 110a rather than the terminal 120.

[0045] In the embodiments, the communication device 110 that cannot access the information processing device 200 without using a wireless line using the target frequency band may be referred to as the communication device 110b. For example, a wireless relay device that needs to establish a backhaul link using the target frequency band can be considered the communication device 110b. Furthermore, a device such as a smartphone equipped with a wireless network provisioning function, such as tethering, that uses frequencies that require permission from the information processing device 200 in both the backhaul link and the access link may also be treated as the communication device 110b. For example, a CPE-CBSD in the US CBRS corresponds to the communication device 110b according to the embodiments. For the purpose of accessing the SAS corresponding to the information processing device 200 via backhaul link communication performed with a BTS-CBSD corresponding to the communication device 110a, backhaul link communication referred to as a Handshake procedure is performed (see, for example, Non-Patent Document 8). The communication device 110b may be equipped with a function equivalent to such a Handshake procedure for the purpose of accessing the information processing device 200.

[0046] The communication device 110 does not necessarily have to be fixed. For example, the communication device 110 may be installed on a moving object such as a car. Furthermore, the communication device 110 does not necessarily have to be located on the ground. For example, the communication device 110 may be provided on an object in the air or space, such as an aircraft, a drone, a helicopter, a High Altitude Platform Station (HAPS), a balloon, or a satellite. Furthermore, the communication device 110 may be provided on an object on or under the sea, such as a ship or a submarine. Typically, the above-described mobile communication device 110 corresponds to the communication device 110b, and secures an access path to the information processing device 200 by performing wireless communication with the communication device 110a. Naturally, when wireless communication with the communication device 110a is performed in a frequency band outside the management scope of the information processing device 200, even the mobile communication device 110 can be treated as the communication device 110a.

[0047] In the embodiments, unless otherwise specified, the term "communication device 110" encompasses both the communication device 110a and the communication device 110b, and may be read as either one.

[0048] The communication device 110 may be used, operated, or managed by various operators. For example, operators related to the communication device 110 may include a mobile network operator (MNO), a mobile virtual network operator (MVNO), a mobile network enabler (MNE), a mobile virtual network enabler (MVNE), a shared facility operator, a neutral host network (NHN) operator, a broadcasting operator, an enterprise, an educational institution (a school corporation, a local government board of education, etc.), a real estate (building, condominium, etc.) manager, an individual, etc. The operators related to the communication device 110 are not particularly limited. Furthermore, the communication device 110a may be a shared facility used by multiple operators. Furthermore, the installation, use, operation, and management of the facility may be performed by different operators.

[0049] (Intermediate Device 130) The intermediate device 130 is an entity having a function of communicating with the information processing device 200 on behalf of one or more communication devices 110. More specifically, the intermediate device 130 has a function of providing the information processing device 200 with information about the communication device 110 required for the information processing device 200 to make decisions in accordance with one or more policies related to frequency usage, a function of acquiring the results of decisions made by the information processing device 200, and a function of notifying the acquired results of decisions made by the information processing device 200, directly or indirectly, to the communication device 110. Examples of the intermediate device 130 include a DP (Domain Proxy) that performs access proxy to the SAS in the US CBRS and a Proxy that performs access proxy to the US 6 GHz band AFC. Typically, software and applications capable of executing processes based on the above functions are provided, but for convenience of explanation, these will also be treated as the intermediate device 130. Furthermore, with regard to interactions with information processing device 200, descriptions using the term "communication device 110" are also applicable to intermediate device 130 unless otherwise specified.

[0050] (Terminal 120) The terminal 120 is a device that performs wireless communication using the wireless communication service provided by the communication device 110. Typically, a communication device such as a smartphone corresponds to the terminal 120, and is also referred to as a UE (User Equipment), User Terminal, User Station, Mobile Terminal, or Mobile Station. Any device equipped with wireless communication functionality can also be considered the terminal 120. For example, a device such as a professional camera with wireless communication functionality can also be considered the terminal 120, even if wireless communication is not its primary purpose. Furthermore, a broadcasting service radio station (FPU: Field Pickup Unit) that transmits television broadcast images from outside the broadcasting station (on-site) to the broadcasting station for sports broadcasting, etc., may also have the functionality required to operate as the terminal 120. Furthermore, the terminal 120 does not necessarily have to be used by a person. For example, as in MTC (Machine Type Communication), devices such as factory machines and sensors installed in buildings may be connected to a network and operate as the terminal 120. Furthermore, devices called customer premises equipment (CPE) that are provided to ensure Internet connection may be equipped with functions necessary for operating as the terminal 120.

[0051] In addition, the terminal 120 may be provided with a relay communication function, as typified by D2D (Device-to-Device) and V2X (Vehicle-to-Everything).

[0052] Similarly to the communication device 110, the terminal 120 does not need to be fixed or located on the ground. For example, an object in the air or space, such as an aircraft, drone, helicopter, or satellite, may have the functions necessary for the operation of the terminal 120. Furthermore, an object on or under the sea, such as a ship or submarine, may have the functions necessary for the operation of the terminal 120.

[0053] In the embodiment, unless otherwise specified, the terminal 120 corresponds to an entity where a wireless link using a target frequency band terminates. However, depending on the functions provided by the terminal 120 and the applied network topology, the terminal 120 may operate in the same manner as the communication device 110. In other words, depending on the network topology, a device that can correspond to the communication device 110, such as a wireless access point, may also correspond to the terminal 120, and a device that can correspond to the terminal 120, such as a smartphone, may also correspond to the communication device 110.

[0054] (Information Recording Device 300) The information recording device 300 is an entity that records one or more types of information used in decision-making performed by the information processing device 200. The information processing device 200 may need to have a function for acquiring information from multiple different information recording devices 300 depending on the type of information.

[0055] The information recording device 300 can be realized as a database that records, for example, license information related to primary system operators in the target frequency band, technical information and / or operational information related to the licensed wireless devices. A typical example of such an information recording device 300 is the Universal Licensing System (ULS) operated by the Federal Communications Commission (FCC). Examples of information necessary for protecting the primary system include location information of the primary system receiver, information related to the receiving antenna (model, gain, height, polarization, feeder loss, etc.), passive site-related information (location, height, back-to-back antenna gain, billboard reflector size, etc.), and other communication parameters. Other information includes the out-of-band emission limit (OOBE), adjacent channel leakage ratio (ACLR), adjacent channel selectivity, fading margin, protection ratio (PR), etc. In countries and regions where fixed values, acquisition methods, and derivation methods are prescribed by law for the purpose of protecting primary systems, it is advisable to follow the provisions of such law.

[0056] The information recording device 300 may be realized as, for example, a database that records information about the communication device 110 that has obtained equipment authorization for radio wave emissions in the target frequency band. If the terminal 120 is also a decision-making target of the information processing device 200, information about the terminal 120 that has obtained equipment authorization may be recorded in the same way. A representative example of such an information recording device is the Equipment Authorization System (EAS) managed by the FCC's Office of Engineering and Technology (OET). Generally, the following information may be recorded as information related to equipment authorization, but is not necessarily limited to these: Equipment authorization identifier (e.g., FCC ID, technical standard compliance certification number); Equipment model name, equipment class name, and emission designator; Operating frequency range and transmission power

[0057] The information recording device 300 is, for example, a database that records a radio wave environment map (REM). The REM is a data set that includes information about the radio wave environment in a given area. Typically, the database is constructed using frequency sensing, measurements, etc. The information processing device 200 may acquire the REM recorded in the information recording device 300 and use it for decision-making.

[0058] The information recording device 300 is, for example, a database that records a digital elevation model (DEM). This data can be used when using a model that requires information such as elevation and topography in propagation loss estimation. For example, various data, such as the digital elevation model provided by the Geospatial Information Authority of Japan (GIS) and the 3D Elevation Program (3DEP) dataset provided by the United States Geological Survey (USGS), can be selected and used depending on the country or region in which it is applied.

[0059] The information recording device 300 is, for example, a database that records 3D building data, which can be used to determine whether a path is line-of-sight or non-line-of-sight (LOS / NLOS) in propagation loss estimation.

[0060] Naturally, even if the data is not included in the above example, a database that records data that can be used for decision-making by the information processing device 200 may be treated as the information recording device 300, and the information processing device 200 may be equipped with the function of acquiring information from the above database.

[0061] (Information notification device 400) The information notification device 400 is a system that notifies the information processing device 200 of time-varying information used in decision-making performed by the information processing device 200 in accordance with the state of change.

[0062] The information notification device 400 can be realized, for example, as a radio wave sensing system that detects radio waves from a primary system that uses radio waves non-periodically / non-stationarily. A typical example is the Environmental Sensing Capability (ESC) used in the U.S. CBRS. The ESC detects radio waves from a shipboard radar, which is the primary system, and notifies the SAS of the detection information. The SAS, which is an information processing device, uses the detection information to manage and control the radio wave emission of a CBRS Device (CBSD), which is a communication device.

[0063] The information notification device 400 can be realized, for example, as a portal system that manages activity information of the primary system. As a specific example, in the U.S. Citizens Broadband Radio Service (CBRS), the information notification device 400 can include a calendar-type system called the Informing Incumbent Portal or the Telecommunications Advanced Research and Dynamic Spectrum Sharing System (TARDyS3) (see, for example, Non-Patent Document 9). Based on the acquired activity information, a protection area called a Dynamic Protection Area (DPA) is enabled to protect the primary system. Protection of the primary system can also be achieved in a similar manner by an equivalent system called Informing Incumbent Capability (IIC) (see, for example, Non-Patent Document 10).

[0064] (Supplementary Notes) The interfaces between the entities constituting the above system model may be wired or wireless, or may be a combination of wired and wireless. For example, the interface between the information processing device 200 and the communication device 110 may be not only a wired line, but also a wireless interface that uses a frequency band other than the target frequency band. Examples of wireless interfaces that use a frequency band other than the target frequency band include wireless communication lines provided by mobile communication carriers via licensed bands, and Wi-Fi (registered trademark) communications that use license-exempt bands such as the 2.4 GHz band and the 5 GHz band.

[0065] The entities constituting the above system model, except for the communication device 110, the intermediate device 130, and the terminal 120, can all take the form of either or both of physical entities and logical entities (functional blocks). For example, the information processing device 200 may have all of the functions of the information notification device 400 and the information recording device 300. Furthermore, for example, the information notification device 400 may be provided by the terminal 120 or the communication device 110 as a frequency sensing or measurement function. Furthermore, for example, the information notification device 400 and the information recording device 300 may exist separately from those existing as logical entities (functional blocks). The above system model is not limited to the above example, and may be modified and applied according to all conceivable combinations.

[0066] (1-2-1-2. Terminology) Unless otherwise specified, the term "transmission power" used in the embodiments may be replaced with terms such as equivalent isotropic radiated power (EIRP), total radiated power (TRP), and conducted power. Naturally, the term is not limited to these and may be replaced with any term representing transmission power.

[0067] When the embodiments are applied to environments other than frequency sharing environments, the term "frequency" is replaced by another term that is shared in the application, such as "resource," "resource block," "resource element," "resource pool," "resource unit," "channel," "subchannel," "component carrier," "carrier," "subcarrier," "Bandwidth Part (BWP)," or another term having an equivalent or similar meaning.

[0068] As mentioned above, the embodiments are not limited to a frequency sharing environment. Generally, in examples of frequency sharing or secondary frequency usage, an existing system using a target frequency band is referred to as a primary system, and a secondary user is referred to as a secondary system. However, when the embodiments are applied to environments other than frequency sharing, these terms should be replaced with other terms. For example, a macrocell base station in a heterogeneous network (HetNet) may be referred to as a primary system, and a small cell base station or a relay station as a secondary system. Alternatively, a base station may be referred to as a primary system, and a Relay UE (User Equipment) or Vehicle UE that realizes D2D or V2X within its coverage may be referred to as a secondary system. The base station may not be fixed, but may be portable or mobile. In such a case, for example, the information processing device 200 according to the embodiment may be provided in a core network, a base station, a relay station, a Relay UE, or the like.

[0069] (1-2-2. Basic Processing of Information Processing System SYS1) An example of basic processing of the information processing system SYS1 according to the embodiment will be described using Figures 4, 5, tables, and formulas. Note that the following steps (1-2-2-1. Registration / Initialization Procedure) to (1-2-2-5. Supplementary Notes on Various Procedures) will be described assuming that they are mainly executed by the communication device 110a.

[0070] (1-2-2-1. Registration / Initialization Procedure) The registration procedure is a procedure for registering information about communication device 110 that intends to use the frequency band in information processing device 200, and is also referred to as an initialization procedure. Typically, the registration procedure is executed by communication device 110 that intends to use the frequency band notifying information processing device 200 of a registration request including its own device parameters. Alternatively, the registration procedure may be executed by intermediate device 130, representing one or more communication devices 110 that intend to use the frequency band, notifying information processing device 200 of a registration request including device parameters of the one or more communication devices 110.

[0071] (Details of Required Parameters) Device parameters refer to, for example, the following information: - Information relating to the user of the communication device 110 (hereinafter, "user information") - Information unique to the communication device 110 (hereinafter, "unique information") - Information relating to the location of the communication device 110 (hereinafter, "location information") - Information relating to the antenna of the communication device 110 (hereinafter, "antenna information") - Information relating to the wireless interface of the communication device 110 (hereinafter, "wireless interface information") - Legal information relating to the communication device 110 (hereinafter, "legal information") - Information relating to the installer of the communication device 110 (hereinafter, "installer information") - Information relating to the group to which the communication device 110 belongs (hereinafter, "group information")

[0072] Device parameters are not limited to the above information, and information other than the above may also be treated as device parameters. It should be noted that device parameters do not need to be transmitted all at once, but may be transmitted in multiple batches. In other words, multiple registration requests may be transmitted for one registration procedure. In this way, one procedure or one process within a procedure may be executed in multiple batches. The same applies to the procedures described below.

[0073] User information refers to information related to the user of the communication device 110. For example, user information may include a user ID, account name, user name, user contact information, and call sign. The user ID and account name may be generated independently by the user of the communication device 110, or may be issued in advance by the information processing device 200. It is desirable to use a call sign issued by the NRA.

[0074] The user information can be used, for example, for interference resolution. As a specific example, in the frequency usage notification procedure described later in (1-2-2-5. Supplementary Information on Various Procedures), the information processing device 200 may execute a suspension determination for a frequency currently in use by the communication device 110, issue an instruction based on the suspension determination, and then subsequently notify a frequency usage notification request for the above frequency. In such a case, the information processing device 200 may suspect a malfunction of the communication device 110 and may contact the user contact information included in the user information to request confirmation of the behavior of the communication device 110. Not limited to the above example, when it is determined that the communication device 110 is performing an operation contrary to the communication control executed by the information processing device 200, the information processing device 200 may contact the communication device 110 using the user information.

[0075] The unique information is information that can identify the communication device 110, product information of the communication device 110, information about the hardware or software of the communication device 110, and the like.

[0076] The information that can identify the communication device 110 may include, for example, the manufacturing number (serial number) of the communication device 110, an ID of the communication device 110, etc. The ID of the communication device 110 may be, for example, an ID that is uniquely assigned by the user of the communication device 110.

[0077] The product information of the communication device 110 may include, for example, an authentication ID, a product model number, information about the manufacturer, etc. An authentication ID is an ID given by a certification body in each country or region, such as an FCC ID in the United States, a CE number in Europe, or a technical standard conformity certificate in Japan. An ID issued by an industry association or the like based on its own authentication program may also be considered an authentication ID.

[0078] The unique information typified by the above can be used, for example, as an allow list or a deny list. For example, if any information related to an active communication device 110 is included in the deny list, the information processing device 200 can issue a frequency usage suspension instruction to the active communication device 110 in the frequency usage notification procedure described below (1-2-2-5. Supplementary Information on Various Procedures). Furthermore, the information processing device 200 can behave in such a way that it does not lift the suspension of use until the active communication device 110 is removed from the deny list. Furthermore, for example, the information processing device 200 can refuse to register a communication device 110 included in the deny list. Furthermore, the information processing device 200 can perform operations such as not considering communication devices 110 corresponding to information included in the deny list in interference calculations according to embodiments, or considering only communication devices 110 corresponding to information included in the allow list in interference calculations.

[0079] In an embodiment, the authentication ID may be treated as information related to transmission power. For example, information about FCC-certified equipment can be obtained from an Equipment Authorization System (EAS) database, a type of regulatory database, using an API (Application Programming Interface) (see, for example, Non-Patent Document 11). The record includes RF transmission output power (power output) associated with the certification. It is stipulated that, in each EAS record, if the field "grantNoteId" is "EP," equivalent isotropic radiated power (EIRP) is recorded; otherwise, antenna power (conducted power) is recorded. Therefore, if there is transmission output power information associated with the authentication ID, not limited to an FCC ID, the authentication ID may be treated as equivalent to that information.

[0080] The information about the hardware of the communication device 110 may include, for example, transmission power class information. For example, in the U.S. CBRS, two types of transmission power class information, Category A and Category B, are defined, and the information about the hardware of the communication device 110 that conforms to these specifications may include information about which of these two classes the device belongs to. In addition, TS36.104 and TS38.104 of the 3GPP (3rd Generation Partnership Project) define several classes of eNodeB and gNodeB, and these specifications may also be used.

[0081] The transmission power class information can be used, for example, for interference calculation. The interference calculation can be performed by using the maximum transmission power specified for each class as the transmission power of the communication device 110.

[0082] The information about the software of the communication device 110 may include, for example, version information, build number, etc., about an execution program that describes the processing required for interaction with the information processing device 200. It may also include version information, build number, etc., of the software for operating as the communication device 110.

[0083] The location information is typically information that can identify the location of the communication device 110. For example, it is coordinate information acquired by a positioning function such as the Global Positioning System (GPS), Beidou, the Quasi-Zenith Satellite System (QZSS), Galileo, or the Assisted Global Positioning System (A-GPS). Typically, the location information may include information related to latitude, longitude, height above ground / sea level, altitude, and positioning error. Alternatively, the location information may be, for example, location information registered in an information management device managed by the National Regulatory Authority (NRA) or its entrusted organization. Alternatively, the location information may be, for example, coordinates of the X-, Y-, and Z-axes with a specific geographical location as the origin. In addition to such coordinate information, an identifier indicating whether the communication device 110 is located outdoors or indoors may be assigned.

[0084] Furthermore, location uncertainty information may be included in the location information. For example, the location accuracy information may be provided for both the horizontal plane and the vertical plane, or for either one of them. The location accuracy information may be used, for example, as a correction value when calculating the distance to an arbitrary point. Furthermore, for example, the positioning accuracy information may also be used as area information in which the communication device 110 may be located. In this case, the positioning accuracy information is used for processing such as identifying frequency information that can be used within the area indicated by the positioning accuracy information.

[0085] The location information may also be information indicating the area in which the communication device 110 is located. For example, information indicating an area designated by an administrative body, such as a postal code or an address, may be used. Alternatively, the area may be indicated by a set of three or more geographic coordinates. Such information indicating the area may be provided together with the coordinate information.

[0086] Furthermore, when the communication device 110 is located indoors, the location information may also include information indicating the floor of the building on which the communication device 110 is located. For example, the location information may include an identifier indicating the floor number, ground level, or basement. Furthermore, the location information may include information indicating a further enclosed space indoors, such as a room number or room name within the building.

[0087] If the communication device 110 uses an external antenna, it is preferable to use the position information of the external antenna as the position information. In other words, it is preferable to treat the external antenna as the communication device 110.

[0088] Typically, it is desirable that the positioning function be provided by the communication device 110. However, there are cases where the performance of the positioning function does not meet the required accuracy. Furthermore, even if the performance of the positioning function meets the required accuracy, depending on the installation location of the communication device 110, it may not be possible to acquire location information that meets the required accuracy. Therefore, the positioning function may be provided by a device separate from the communication device 110, and the communication device 110 may acquire location-related information from that device. The device having the positioning function may be an available existing device, or may be installed by the installer of the communication device 110. In such cases, it is desirable that the location information measured by the installer of the communication device 110 be written to the communication device 110.

[0089] The antenna information is typically information indicating the performance, configuration, etc. of an antenna provided in the communication device 110. Typically, the information may include, for example, information such as the antenna installation height, tilt angle (downtilt), horizontal direction (azimuth), boresight, antenna peak gain, and antenna model.

[0090] The antenna information may also include information about the beams that can be formed, such as beam width, beam pattern, and analog or digital beamforming capabilities.

[0091] The antenna information may also include information regarding 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 (or the number of MIMO layers) may be included. Furthermore, information regarding the codebook to be used, weight matrix information, and the like may also be included. Examples of weight matrix information include a unitary matrix, a ZF (Zero-Forcing) matrix, and an MMSE (Minimum Mean Square Error) matrix, which may be obtained by SVD (Singular Value Decomposition), EVD (Eigen Value Decomposition), BD (Block Diagonalization), and the like. Furthermore, if the communication device 110 has a function such as MLD (Maximum Likelihood Detection) that requires nonlinear calculation, information indicating the function may be included in the antenna information.

[0092] Furthermore, the antenna information may include ZoD (Zenith of Direction, Departure). ZoD is a type of radio wave arrival angle. Note that the ZoD may not be notified from the communication device 110, but may be estimated by another communication device 110E from radio waves emitted from the antenna of the communication device 110 and notified. In this case, the communication device 110 may be a device operating as a base station or an access point, a device performing D2D communication, a moving relay base station, or the like. The ZoD may 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). Furthermore, the ZoD may be used by the information processing device 200 as measurement information.

[0093] The radio interface information typically refers to information indicating the radio interface technology provided by the communication device 110. For example, the radio interface information may include identifier information indicating technologies used in GSM (registered trademark), CDMA2000, UMTS, E-UTRA, E-UTRA NB-IoT, 5G NR, 5G NR NB-IoT, or further next-generation cellular systems. The radio interface information may also include identifier information indicating LTE (Long Term Evolution) / 5G-compliant derivative technologies such as MultiFire, LTE-U (Long Term Evolution-Unlicensed), and NR-U (NR-Unlicensed). The radio interface information may also include identifier information indicating standard technologies such as MANs (Metropolitan Area Networks) such as WiMAX and WiMAX2+, and IEEE 802.11-based wireless LANs. The wireless interface information may also include identifier information indicating XGP (Extended Global Platform) or sXGP (shared XGP). It may also include identifier information for communication technology for LPWA (Local Power, Wide Area). It may also include identifier information indicating proprietary wireless technology. The wireless interface information may also include the version number or release number of the technical specifications that define these technologies.

[0094] The radio interface information may also include information about frequency bands supported by the communication device 110. For example, the frequency band information may be represented by an upper limit frequency, a lower limit frequency, a center frequency, a bandwidth, a 3GPP Operating Band number, or a combination of at least two of these. Furthermore, information about one or more frequency bands may be included in the radio interface information.

[0095] The frequency band information supported by the communication device 110 may further include information indicating the capabilities of bandwidth extension technologies such as carrier aggregation (CA) and channel bonding. For example, information on bands that can be combined may be included. Regarding carrier aggregation, information on bands to be used as a primary component carrier (PCC) or a secondary component carrier (SCC) may also be included. The information may also include the number of component carriers (number of CCs) that can be simultaneously aggregated.

[0096] The frequency band information supported by the communication device 110 may further include information indicating a combination of frequency bands supported by Dual Connectivity and Multi Connectivity. Additionally, information on other communication devices 110E that cooperate to provide Dual Connectivity and Multi Connectivity may also be provided. In subsequent procedures, the information processing device 200 may execute a decision on communication control according to the embodiment, taking into account other communication devices 110E that are in a cooperative relationship, etc.

[0097] The frequency band information supported by the communication device 110 may also include information indicating frequency usage priority and tier, such as PAL and GAA.

[0098] The radio interface information may also include modulation scheme information supported by the communication device 110. For example, representative examples include information indicating primary modulation schemes such as FSK (Frequency Shift Keying), n-ary PSK (Phase Shift Keying, where n is a power of 2, such as 2, 4, or 8), and n-ary QAM (Quadrature Amplitude Modulation, where n is a power of 4, such as 4, 16, 64, 256, or 1024). The radio interface information may also include information indicating secondary modulation schemes such as OFDM (Orthogonal Frequency Division Multiplexing), Scalable OFDM, DFT-s-OFDM (DFT spread OFDM), GFDM (Generalized Frequency Division Multiplexing), and FBMC (Filter Bank Multi Carrier).

[0099] The radio interface information may also include information about error correction codes, such as capabilities of Turbo codes, low density parity check (LDPC) codes, polar codes, erasure correction codes, and the like, and information about the coding rate to be applied.

[0100] Alternatively, the modulation method information and the information on the error correction code can be expressed as an MCS (Modulation and Coding Scheme) index.

[0101] The radio interface information may also include information indicating functions specific to each wireless technical specification supported by the communication device 110. For example, a typical example is TM (Transmission Mode) information defined in LTE. In addition, if a specific function has two or more modes, the radio interface information may include TM information. Furthermore, if the communication device 110 supports a function that is not required by the specification even if the technical specification does not have two or more modes, information indicating the supported function may also be included.

[0102] The radio interface information may also include information on radio access technologies (RATs) supported by the communication device 110. For example, information indicating time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), power division multiple access (PDMA), code division multiple access (CDMA), sparse code multiple access (SCMA), interleave division multiple access (IDMA), spatial division multiple access (SDMA), carrier sense multiple access / collision avoidance (CSMA / CA), and carrier sense multiple access / collision detection (CSMA / CD) may be included. Note that TDMA, FDMA, and OFDMA are classified as orthogonal multiple access (OMA). PDMA, CDMA, SCMA, IDMA, and SDMA are classified as non-orthogonal multiple access (NOMA). A typical example of PDMA is a method realized by combining SPC (Superposition Coding) and SIC (Successive Interference Canceller). CSMA / CA and CSMA / CD are classified as opportunistic access methods.

[0103] When the radio interface information includes information indicating an opportunistic access method, the radio interface information may further include information indicating details of the access method. As a specific example, the radio interface information may include information indicating whether the access method is Frame Based Equipment (FBE) or Load Based Equipment (LBE) defined in ETSI EN 301 598.

[0104] If the radio interface information indicates LBE, it may further include LBE-specific information such as Priority Class.

[0105] The radio interface information may also include information related to duplex modes supported by the communication device 110. Representative examples include information related to methods such as frequency division duplex (FDD), time division duplex (TDD), and full duplex (FD).

[0106] When TDD is included as the radio interface information, TDD Frame Structure information may be added which is used or supported by the communication device 110. Furthermore, information related to a duplex mode may be included for each frequency band indicated by the frequency band information.

[0107] When the radio interface information includes FD, information on the interference power detection level may be included.

[0108] The radio interface information may also include information about transmit diversity techniques supported by the communication device 110. For example, space time coding (STC) may be included.

[0109] The radio interface information may also include guard band information. For example, the radio interface information may include information about a guard band size predetermined for the radio interface. Alternatively, the radio interface information may include information about a guard band size desired by the communication device 110.

[0110] Regardless of the above aspect, the radio interface information may be provided for each frequency band.

[0111] The legal information typically refers to information about regulations that the communication device 110 must comply with, as determined by radio regulatory agencies or equivalent agencies in each country or region, and certification information that the communication device 110 has acquired. The regulatory information typically includes, for example, information about upper limits on out-of-band emissions and information about the blocking characteristics of the receiver. The certification information typically includes, for example, type approval information and regulatory information that serves as the basis for obtaining certification. Examples of type approval information include an FCC ID in the United States and a technical regulations compliance certificate in Japan. Examples of regulatory information include an FCC rule number in the United States and an ETSI Harmonized Standard number in Europe.

[0112] Numerical values ​​in the legal information may be substituted by those specified in the radio interface technology specifications. Examples of radio interface technology specifications include 3GPP TS 36.104 and TS 38.104. These specifications specify the adjacent channel leakage ratio (ACLR). Instead of the upper limit value information for out-of-band radiation, the ACLR specified in the specifications may be used to derive and use the upper limit value for out-of-band radiation. The ACLR itself may also be used as needed. Adjacent channel selectivity (ACS) may also be used instead of blocking characteristics. These may also be used together, or the adjacent channel interference ratio (ACIR) may also be used. Generally, the ACIR has a relationship with the ACLR and ACS as shown in the following equation (1). Although the following equation (1) uses a true value representation, it may also be expressed in logarithmic terms.

[0113]

[0114] The installer information may include information that can identify the person (installer) who installed the communication device 110, unique information linked to the installer, and the like. Typically, the installer information may include information about the individual who is responsible for the location information of the communication device 110, known as the Certified Professional Installer (CPI) in the U.S. CBRS (see, for example, Non-Patent Document 12). The CPI discloses a Certified Professional Installer Registration ID (CPIR-ID) and a CPI name. Furthermore, unique information linked to the CPI may include, for example, a mailing address or contact address, an email address, a telephone number, a PKI (Public Key Identifier), and the like. Other information related to the installer may also be included in the installer information as needed, without being limited to the above.

[0115] The group information may include information about the communication device group to which the communication device 110 belongs. Specifically, for example, information about groups of the same or equivalent type as WINNF-SSC-0010 (see, for example, Non-Patent Document 13) may be included. Furthermore, for example, if a telecommunications carrier manages the communication devices 110 on a group-by-group basis according to its own operation policy, information about the group may be included in the group information.

[0116] The information listed up to this point may not be provided by the communication device 110 to the information processing device 200, but may be inferred by the information processing device 200 from other information provided by the communication device 110. Specifically, for example, guard band information can be inferred from wireless interface information.

[0117] The guard band information estimation process according to the embodiment will be described using Figure 4. Figure 4 is a diagram showing a specific example 3 of the basic principle of the information processing system SYS1 according to the embodiment. When the wireless interface used by the communication device 110 is E-UTRA or 5G NR, the guard band information can be estimated based on the E-UTRA transmission bandwidth specifications described in 3GPP TS 36.104 shown in Figure 4 (1), the 5G NR transmission bandwidth specifications described in 3GPP TS 38.104 shown in Figure 4 (2), and the following Tables 1 to 4 described in TS 38.104.

[0118]

[0119]

[0120]

[0121]

[0122] In other words, it is sufficient for information processing device 200 to acquire the information listed above, and communication device 110 does not necessarily need to provide the information listed above to information processing device 200. Furthermore, intermediate device 130 (e.g., a network manager) that bundles multiple communication devices 110 does not necessarily need to provide the information listed above to information processing device 200. Providing information to information processing device 200 by communication device 110 or intermediate device 130 is merely one means of providing information in the embodiment. The information listed above is information that may be necessary for information processing device 200 to successfully complete the above procedures, and the means of providing the information does not matter. For example, WINNF-TS-0061 allows such a method, calling it Multi-Step Registration.

[0123] Naturally, the information listed above can be selectively applied depending on the regulations / legal systems and technical specifications of the applicable country or region.

[0124] (Supplementary Information on Required Parameters) In some cases, it is expected that during the registration procedure, it will be required to register device parameters related to not only the communication device 110 but also the terminal 120 in the information processing device 200. In such cases, the term "communication device" in the explanation above in (1-2-2-1. Registration / Initialization Procedure) may be replaced with "terminal" or a term equivalent thereto. Furthermore, parameters specific to "terminal" that are not explained in (1-2-2-1. Registration / Initialization Procedure) may also be treated as required parameters in the registration procedure. For example, UE Categories defined by 3GPP may be mentioned.

[0125] (Details of Registration Process) As described above, the communication device 110 representing the wireless communication system that intends to use the frequency band generates a registration request including device parameters and notifies the information processing device 200 of the request.

[0126] Here, if the device parameters include installer information, the communication device 110 may use the installer information to perform processing such as tamper-proofing on the registration request. Furthermore, some or all of the information included in the registration request may be encrypted. Specifically, for example, a unique public key may be shared in advance between the communication device 110 and the information processing device 200, and the communication device 110 may encrypt information using a private key corresponding to the public key. Sensitive information such as location information may be encrypted, for example.

[0127] It is possible that the ID and location information of the communication device 110 are publicly available, and the information processing device 200 previously stores the IDs and location information of the main communication devices 110 present within its coverage area. In such cases, the information processing device 200 can obtain the location information from the ID of the communication device 110 that sent the registration request, so the location information does not need to be included in the registration request. It is also possible that the information processing device 200 replies with the necessary device parameters to the communication device 110 that sent the registration request, and in response, the communication device 110 sends a registration request including the device parameters necessary for registration. In this way, the information included in the registration request may vary depending on the situation.

[0128] Furthermore, if the communication device 110 is mobile, depending on the regulations of the target country or region, it is not necessary to register the location information in the information processing device 200. Therefore, to provide the location information, it is sufficient to have the necessary functions according to the regulations of the target country or region.

[0129] After receiving the registration request, the information processing device 200 performs registration processing for the communication device 110 and returns a registration response according to the processing results. If there is no lack of information required for registration or if there are no abnormalities, the information processing device 200 records the information in an internal or external storage device and notifies the communication device 110 of successful completion. Otherwise, it notifies the communication device 110 of a failed registration. If the registration is successful, the information processing device 200 may assign an ID to each communication device 110 and notify the communication device 110 of the ID information in the response. If the registration fails, the communication device 110 may re-notify a modified registration request. The communication device 110 may also modify the registration request and attempt to repeat the registration procedure until the registration is successful.

[0130] Note that the registration procedure may be executed even after successful completion of registration. Specifically, for example, when location information changes beyond a predetermined standard due to movement, accuracy improvement, or the like, the registration procedure may be executed again for the purpose of initialization. The predetermined standard is typically determined by the legal system of each country or region. For example, in the U.S. TV White Space Regulations 47 C.F.R Part 15 Subpart H (see, for example, Non-Patent Document 1), a Mode II personal / portable White Space device, i.e., a device using an open frequency, is required to re-register if its location changes by 100 meters or more.

[0131] (1-2-2-2. Available spectrum query procedure) The available frequency information query procedure is a procedure in which a communication device 110 that intends to use a frequency band queries the information processing device 200 for information on available frequencies. Note that it is not necessary to perform the available frequency information query procedure. Furthermore, the intermediate device 130 that executes the query on behalf of one or more communication devices 110 that intend to use the frequency band may be the same as or different from the communication device 110 that generated the registration request. Typically, the procedure is initiated when the communication device 110 that executes the query notifies the information processing device 200 of a query request that includes information that can identify the communication device 110.

[0132] Here, the available frequency information typically refers to information indicating frequencies that are estimated to be available for secondary use by the communication device 110 without causing fatal interference to the primary system.

[0133] The available frequency information is determined based on, for example, a secondary use prohibited area called an Exclusion Zone. Specifically, for example, if the communication device 110 is installed in a secondary use prohibited area that is established for the purpose of protecting a primary system that uses frequency channel F1, the frequency channel F1 is not notified to the communication device 110 as an available channel.

[0134] The available frequency information can be determined, for example, by the degree of interference with the primary system. Specifically, even if a frequency channel is outside the secondary use prohibited area, if it is determined that the frequency channel will cause fatal interference with the primary system, the frequency channel may not be notified as an available channel. An example of a specific calculation method will be described later.

[0135] Furthermore, as described above, there may be frequency channels that are not notified as available due to conditions other than the primary system protection requirements. Specifically, for example, in order to prevent interference that may occur between the communication devices 110 in advance, a frequency channel that is being used by another communication device 110E that is present in the vicinity of the communication device 110 may not be notified as an available channel. In this way, available frequency information that is set in consideration of interference with other communication devices 110E may be set as, for example, "recommended use frequency information" and provided together with the available frequency information. In other words, it is desirable that the "recommended use frequency information" be a subset of the available frequency information.

[0136] Even if it would have an impact on the primary system, if the impact can be avoided by reducing the transmission power, the same frequency as that of the primary system or a nearby communication device 110 may be notified as an available channel. In such a case, the available frequency information typically includes the maximum allowable transmission power. The maximum allowable transmission power is typically expressed in EIRP, but is not necessarily limited to this and may be provided, for example, as a combination of conducted power and antenna gain. Furthermore, the allowable peak gain of the antenna gain may be set for each spatial direction.

[0137] (Details of Required Parameters) Information that can identify a wireless communication system that is to use a frequency band may be, for example, unique information registered during the registration procedure, the above-mentioned ID information, or the like.

[0138] The inquiry request may also include inquiry requirement information. The inquiry requirement information may include, for example, information indicating a frequency band for which availability is desired. The inquiry requirement information may also include, for example, transmission power information. The communication device 110 executing the inquiry may include transmission power information when, for example, it only wants to know frequency information for which a desired transmission power can be used. The inquiry requirement information does not necessarily have to be included in the inquiry request.

[0139] Additionally, if the communication device 110 is mobile, the query requirement information may include geofence information, i.e., available frequency information may be queried anywhere within the geographic region / space indicated by the geofence information.

[0140] The information indicating the frequency band may also include information indicating the format of the available frequency information. In the IEEE 802.11 standard, a channel number is defined for each band. For example, a flag indicating whether or not availability of a channel defined in such an air interface technical specification is requested may be included. As another format, a flag indicating whether or not availability of a unit frequency range is requested rather than a defined channel may be included. If the unit frequency is 1 MHz, available frequency information is requested for each 1 MHz frequency range. When this flag is used, the desired unit frequency information may be included together with the flag.

[0141] The inquiry request may also include a measurement report. The measurement report includes the results of measurements performed by the communication device 110 and / or the terminal 120. Some or all of the measurement results may be represented as raw data or processed data. For example, standardized metrics such as RSRP (Reference Signal Received Power), RSSI (Reference Signal Strength Indicator), and RSRQ (Reference Signal Received Quality) may be used for the measurements.

[0142] (Details of Available Frequency Evaluation Process) After receiving the inquiry request, the information processing device 200 evaluates available frequencies based on the inquiry requirement information. For example, as described above, it is possible to evaluate available frequencies taking into consideration the primary system, its secondary use prohibited area, and the presence of nearby communication devices 110.

[0143] The information processing device 200 may derive the secondary use prohibited area in advance or after receiving the request, and evaluate the available frequency based on the secondary use prohibited area. For example,ＭａｘＴｘ（ｄＢｍ） and the minimum transmission power P ＭｉｎＴｘ（ｄＢｍ） is defined, it is possible to calculate the range of separation distance between the primary system and the secondary system using the following formula (2) and determine the secondary use prohibited area.

[0144]

[0145] In the above formula (2), I Ｔｈ（ｄＢｍ） is the allowable interference power (limit value of the allowable interference power), d is the distance between a predetermined reference point and the communication device 110, and PL() （ｄＢ） is a function of propagation loss. This allows frequency availability to be determined according to the positional relationship between the primary system and the communication device 110. In addition, when the communication device 110 provides information on the transmission power or power range it wishes to use in the request, the PL －１ (P Ｔｘ（ｄＢｍ） -I Ｔｈ（ｄＢｍ） ) and compare it with the range formula above to determine frequency availability.

[0146] The information processing device 200 may derive information on the allowable maximum transmission power in a given frequency (channel) as the available frequency information. Typically, the information processing device 200 derives the allowable maximum transmission power P using information on the allowable interference power in the primary system or its protection zone, location information of a reference point for calculating the interference power level suffered by the primary system, registration information of the communication device 110, and a propagation loss estimation model. ＭａｘＴｘ（ｄＢｍ） Specifically, as an example, it is calculated by the following formula (3).

[0147]

[0148] Although the above formula (3) does not include the antenna gain of the transmitter / receiver, the antenna gain of the transmitter / receiver may be included depending on the expression method of the maximum allowable transmission power (e.g., EIRP, conducted power, etc.) and the reference point of the received power (e.g., antenna input point, antenna output point, etc.). A safety margin for compensating for fluctuations due to fading may also be included. Feeder loss may also be taken into account as necessary. Similar calculations can be made for adjacent channels by taking into account the ACLR (Adjacent Channel Leakage Ratio) and the maximum out-of-band radiation value.

[0149] Furthermore, the above formula (3) is written based on the assumption that a single communication device 110 is the interference source (single-station interference). For example, if it is necessary to consider the cumulative interference (aggregated interference) from multiple communication devices 110 at the same time, a correction value may be added. Specifically, the correction value may be determined based on three types of interference margin allocation methods (Fixed / Predetermined, Flexible, Flexible Minimized) (see, for example, Non-Patent Document 4).

[0150] It should be noted that, as in the above formula (3), the tolerable interference power information itself is not necessarily directly available. For example, if the required signal-to-interference power ratio (SIR), SINR (Signal to Interference Plus Noise Ratio), etc. of the primary system are available, they may be converted into the tolerable interference power and used. It should be noted that such conversion processing is not limited to this processing, and may also be applied to processing of other procedures.

[0151] Although the above equation (3) is expressed using logarithms, it may be converted into antilogarithms in practice. Furthermore, all parameters expressed in logarithmic notation according to the embodiment may be converted into antilogarithms as appropriate.

[0152] Furthermore, when the aforementioned transmission power information is included in the inquiry requirement information, it is possible to evaluate the available frequency by a method other than the above-described method. Specifically, for example, assuming that the desired transmission power indicated by the transmission power information is used, when the estimated interference amount is lower than the tolerable interference power in the primary system or its protection zone, the above frequency channel is determined to be available and notified to the communication device 110.

[0153] Furthermore, for example, in the case where an area or space in which the communication device 110 can use a frequency band is predetermined, similar to the REM area, the available frequency information may be derived solely based on the coordinates (the X-axis, Y-axis, and Z-axis coordinates or the latitude, longitude, and height above ground of the communication device 110) included in the location information of the communication device 110. Also, for example, even in the case where a lookup table that associates the location coordinates of the communication device 110 with the available frequency information is prepared, the available frequency information may be derived solely based on the location information of the communication device 110. As such, there are various methods for determining available frequencies, and the method is not limited to the above example.

[0154] In addition, if the information processing device 200 acquires information about the capabilities of bandwidth extension technologies such as carrier aggregation (CA) and channel bonding as frequency band information supported by the communication device 110, the information processing device 200 may include available combinations, recommended combinations, etc. of these in the available frequency information.

[0155] Furthermore, when the information processing device 200 acquires information on the combination of frequency bands supported by Dual Connectivity and Multi Connectivity as the frequency band information supported by the communication device 110, the information processing device 200 may include information on available frequencies, recommended frequencies, etc. for Dual Connectivity and Multi Connectivity in the available frequency information.

[0156] Furthermore, when providing available frequency information for the above-described band extension technology, if an imbalance in maximum allowable transmission power occurs among multiple frequency channels, the available frequency information may be provided after adjusting the maximum allowable transmission power of each frequency channel. For example, from the viewpoint of protecting the primary system, the maximum allowable transmission power of each frequency channel may be adjusted to the allowable maximum transmission power of a frequency channel with a low maximum allowable power flux density (PSD: Power Spectral Density).

[0157] The evaluation of available frequencies does not necessarily have to be performed after receiving an inquiry request. For example, the information processing device 200 may perform the evaluation independently without an inquiry request after the above-described registration procedure has been successfully completed. In such a case, the REM or lookup table shown as an example above, or an information table similar thereto, may be created.

[0158] In addition, evaluation may also be performed on frequency usage priorities such as PAL and GAA. For example, if registered device parameters or query requirements include information on frequency usage priorities, it may be determined whether frequency usage is possible based on the above priorities and notified. Furthermore, for example, if a user has previously registered information (e.g., Cluster List) on the communication device 110 that executes high-priority usage (e.g., PAL) in the information processing device 200, evaluation may be performed based on that information (e.g., see Non-Patent Document 3).

[0159] After the evaluation of the available frequencies is completed, the information processing device 200 notifies the communication device 110 of the evaluation result.

[0160] The communication device 110 may select desired communication parameters using the evaluation results received from the information processing device 200. If the later-described (1-2-2-3. Frequency Use Authorization Granting Procedure) is not adopted, the communication device 110 may start radio wave transmission using the selected desired communication parameters as communication parameters.

[0161] (1-2-2-3. Spectrum Grant Procedure) The spectrum grant procedure is a procedure through which a communication device 110 that wishes to use a frequency band is granted permission for secondary use of the frequency by the information processing device 200. Typically, the procedure is initiated when the communication device 110 notifies the information processing device 200 of a spectrum grant request including information that can identify the communication device 110. Alternatively, the spectrum grant procedure may be executed when the intermediate device 130, representing one or more communication devices 110 that wish to use the frequency band, notifies the information processing device 200 of a spectrum grant request including information that can identify the one or more communication devices 110. Note that, as described above, the available frequency information inquiry procedure is not required. Therefore, the spectrum grant procedure may be executed after the available frequency information inquiry procedure or after the registration procedure. Furthermore, the "spectrum use authority" may also be referred to as a "grant."

[0162] In the embodiment, it is assumed that at least the following two types of frequency use authorization request methods can be used: Designated method; Flexible method.

[0163] The designation method is a request method in which the communication device 110 designates desired communication parameters and requests permission to operate based on the desired communication parameters from the information processing device 200. The desired communication parameters include, but are not limited to, a desired frequency channel to be used, maximum transmission power, etc. For example, parameters specific to the wireless interface technology (e.g., modulation method, duplex mode, etc.) may be designated. Furthermore, information indicating frequency usage priority / tier such as PAL or GAA may be included.

[0164] The flexible method is a request method in which the communication device 110 specifies only requirements related to communication parameters and requests the information processing device 200 to specify communication parameters that satisfy the specified requirements and allow secondary use. Requirements related to communication parameters include, but are not limited to, bandwidth, desired maximum transmission power, or desired minimum transmission power. For example, parameters specific to a wireless interface technology (e.g., modulation method, duplex mode, etc.) may be specified. Specifically, for example, one or more TDD frame structures may be selected in advance and notified.

[0165] Similar to the inquiry request, the frequency authorization request may also include a measurement report, regardless of whether it is a designated method or a flexible method. The measurement report includes the results of measurements performed by the communication device 110 and / or the terminal 120. The measurements may be represented as raw data or processed data. For example, standardized metrics such as RSRP (Reference Signal Received Power), RSSI (Reference Signal Strength Indicator), and RSRQ (Reference Signal Received Quality) may be used for the measurements.

[0166] The method information used by the communication device 110 may be registered in the information processing device 200 during the registration procedure described above (1-2-2-1. Registration / initialization procedure).

[0167] (Details of Frequency Use Authorization Processing) After receiving a frequency use authorization request, the information processing device 200 executes the frequency use authorization processing based on the frequency use authorization request method. For example, by using the method described above in (1-2-2-2. Available Frequency Information Inquiry Procedure), it is possible to execute the frequency use authorization processing while taking into consideration the primary system, secondary use prohibited areas, the presence of nearby communication devices 110, etc.

[0168] When the flexible method is used, the maximum allowable transmission power information may be derived using the method described above (Details of Available Frequency Evaluation Process). Typically, the maximum allowable transmission power is calculated using information on the allowable interference power in the primary system or its protection area, location information of a reference point for calculating the interference power level suffered by the primary system, registration information of the communication device 110, and a propagation loss estimation model. Specifically, as an example, the maximum allowable transmission power is calculated using the above formula (3).

[0169] Furthermore, as described above, the above formula (3) is written based on the assumption that a single communication device 110 is the interference source. For example, if cumulative interference from multiple communication devices 110 must be considered simultaneously, a correction value may be added. Specifically, the correction value may be determined based on, for example, three types of methods (Fixed / Predetermined, Flexible, Flexible Minimized).

[0170] The information processing device 200 can use various propagation loss estimation models in procedures for granting frequency use authorization, available frequency evaluation processing in response to available frequency information inquiry requests, etc. When a model is specified for each application, it is desirable to use the specified model. For example, in WINNF-TS-0112, propagation loss models such as eHATA (Extended Hata) and ITM (Irregular Terrain Model) are adopted for each application (see, for example, Non-Patent Document 3). Naturally, the propagation loss models are not limited to these.

[0171] Some propagation loss estimation models require information about the radio wave propagation path. The information about the radio wave propagation path may include, for example, information indicating whether the radio wave propagation path is line of sight (LOS: Line of Sight and / or NLOS: Non-Line of Sight), topographical information (e.g., undulations, elevation above sea level, etc.), and environmental information (e.g., urban, suburban, rural, open sky, etc.). When using a propagation loss estimation model, the information processing device 200 may estimate the above information from already acquired registration information of the communication device 110 or information about the primary system. Alternatively, if there are pre-specified parameters, it is desirable to use the pre-specified parameters.

[0172] When a propagation loss estimation model is not specified for a specific application, different models may be used as needed. For example, when estimating the interference power to other communication devices 110, a model that calculates a small loss, such as a free space loss model, may be used, but when estimating the coverage of the communication device 110, a model that calculates a large loss may be used.

[0173] Furthermore, when a designated propagation loss estimation model is used, it is possible to perform a frequency usage authorization process based on an evaluation of the risk of interference, for example. Specifically, for example, when the amount of interference estimated assuming that the desired transmission power indicated in the transmission power information is used is lower than the allowable interference power in the primary system or its protection area, it is determined that the use of the above frequency channel is permitted, and this is notified to the communication device 110.

[0174] In both the designated method and the flexible method, evaluation may also be performed on frequency usage priorities such as PAL and GAA, as with the inquiry request. For example, if the registered device parameters or inquiry requirements include information on frequency usage priorities, whether frequency usage is possible may be determined based on the frequency usage priorities and notified. Also, for example, if a user has previously registered information on a communication device 110 that performs high-priority usage (e.g., PAL) in the information processing device 200, evaluation may be performed based on that information. For example, information on the communication device 110 is referred to as a Cluster List (see, for example, Non-Patent Document 14).

[0175] Additionally, in any of the above calculations, when using the location information of the communication device 110, location uncertainty may be used to perform location information and coverage corrections to determine frequency availability.

[0176] The frequency use authorization process does not necessarily have to be executed in response to the reception of a frequency use authorization request. For example, the information processing device 200 may execute the process independently without a frequency use authorization request after the above-described registration procedure has been successfully completed. Alternatively, the frequency use authorization process may be executed periodically, for example. In such a case, the above-described REM, a lookup table, or an information table similar thereto may be created. This allows permissible frequencies to be determined using only the location information, so the information processing device 200 can quickly return a response after receiving a frequency use authorization request.

[0177] (1-2-2-4. Spectrum use notification / authorization / heartbeat) The spectrum use notification / authentication procedure is a procedure in which a wireless communication system that uses a frequency band notifies the information processing device 200 of the use of the frequency based on communication parameters that have been approved for use in the spectrum use authorization procedure. The communication device 110 that executes the spectrum use notification on behalf of the wireless communication system may be the same as or different from the communication device 110 that executed the previous procedures. Typically, the communication device 110 notifies the information processing device 200 of a notification message that includes information that can identify the communication device 110.

[0178] It is desirable that the frequency usage notification be performed periodically until the use of the frequency is rejected by the information processing device 200. In this case, the frequency usage notification / authentication procedure is also called a heartbeat.

[0179] After receiving the frequency usage notification, the information processing device 200 may determine whether to start or continue frequency usage (in other words, radio wave transmission at the permitted frequency). For example, one method of determination is to check frequency usage information of the primary system. Specifically, it is possible to determine whether to permit or deny the start or continuation of frequency usage (radio wave transmission at the permitted frequency) based on a change in the frequency used by the primary system, a change in the frequency usage status of a primary system that does not regularly use radio waves (for example, a ship-based radar of the U.S. CBRS), etc. If the start or continuation is permitted, the communication device 110 may start or continue frequency usage (radio wave transmission at the permitted frequency).

[0180] After receiving the frequency usage notification, the information processing device 200 may instruct the communication device 110 to reconfigure the communication parameters. Typically, the reconfiguration of the communication parameters may be instructed in the information processing device 200's response to the frequency usage notification. For example, information on recommended communication parameters (hereinafter, recommended communication parameter information) may be provided. It is desirable that the communication device 110 that has been provided with the recommended communication parameter information re-executes the frequency use authorization procedure described above (1-2-2-3. Frequency Use Authorization Procedure) using the recommended communication parameter information.

[0181] (1-2-2-5. Supplementary Information on Various Procedures) As will be explained below, the above various procedures do not necessarily need to be implemented individually. For example, the above two different procedures may be realized by substituting a third procedure that has the functions of the two different procedures. Specifically, for example, a registration request and an available frequency information inquiry request may be notified together. Also, for example, a frequency use authorization procedure and a frequency use notification may be executed together. Naturally, this is not limited to these combinations, and three or more procedures may be executed together. Also, as mentioned above, one procedure may be executed separately multiple times.

[0182] Furthermore, the expression "acquire" or equivalent expressions in the embodiments do not necessarily mean that the information is acquired according to the procedure described in the embodiments. For example, although it is described that the location information of the communication device 110 is used in the available frequency evaluation process, it does not necessarily mean that the information acquired in the registration procedure is used, and if the location information is included in the available frequency inquiry procedure request, that location information may also be used. In other words, the acquisition procedure described in the embodiments is an example, and acquisition by other procedures is also permitted within the scope of the embodiments and within the scope of technical feasibility.

[0183] Furthermore, if possible, the information described as being included in the response from the information processing device 200 to the communication device 110 may be actively notified by the information processing device 200 using a push method. As a specific example, available frequency information, recommended communication parameter information, a notification of refusal to continue radio wave transmission, and the like may be notified using a push method.

[0184] (1-2-2-6. Various Procedures Related to the Terminal 120) Up to this point, the explanation has been given mainly assuming processing by the communication device 110a. However, depending on the embodiment, not only the communication device 110a but also the terminal 120 and communication device 110b may operate under the management of the information processing device 200. That is, it is assumed that communication parameters are determined by the information processing device 200. Even in such a case, it is basically possible to use the various procedures described above in (1-2-2-1. Registration / Initialization Procedure) to (1-2-2-5. Supplementary Notes on Various Procedures). However, unlike the communication device 110a, the terminal 120 and communication device 110b must use frequencies managed by the information processing device 200 for the backhaul link and cannot transmit radio waves independently. Therefore, it is desirable to start backhaul communication for the purpose of accessing the information processing device 200 only after detecting radio waves or an authorization signal transmitted by the communication device 110a (a communication device 110 capable of providing wireless communication services, or a master communication device 110 in a master-secondary configuration).

[0185] On the other hand, since the terminal 120 and the communication device 110b are under the management of the information processing device 200, allowable communication parameters may be set for the terminal 120 and the communication device 110b in order to protect the primary system. However, the information processing device 200 cannot know the location information of these devices in advance. Furthermore, these devices are likely to have mobility. In other words, their location information is dynamically updated. Depending on the legal system, if the location information changes by more than a certain amount, re-registration to the information processing device 200 may be required.

[0186] Taking into consideration the various usage patterns and operational patterns of the terminals 120 and communication devices 110, the UK Office of Communications (Ofcom) defines the following two types of communication parameters in the TVWS operational pattern (see, for example, Non-Patent Document 15): Generic operational parameters Specific operational parameters

[0187] The comprehensive availability parameter is a communication parameter defined as "a parameter that can be used by any slave WSD located within the coverage area of ​​a predetermined master WSD (corresponding to the communication device 110)" (see, for example, Non-Patent Document 5). A feature of the comprehensive availability parameter is that it is calculated by the WSDB without using the location information of the slave WSD.

[0188] The global availability parameters may be provided by unicast or broadcast from the communication device 110 that has already been permitted to transmit radio waves from the information processing device 200. For example, a broadcast signal such as a Contact Verification Signal (CVS) defined in FCC Part 15 Subpart H in the United States may be used. Alternatively, the global availability parameters may be provided by a broadcast signal specific to the wireless interface. This allows the terminal 120 and the communication device 110b to handle the global availability parameters as communication parameters to be used for radio wave transmission for the purpose of accessing the information processing device 200.

[0189] The specific available parameters are communication parameters defined as "parameters that can be used by a specific slave WSD (White Space Device)." In other words, they are communication parameters calculated using device parameters of the slave WSD corresponding to the terminal 120. A feature of these parameters is that they are calculated by a WSDB (White Space Database) using location information of the slave WSD.

[0190] The CPE-CBSD Handshake Procedure adopted by CBRS can be considered as another form of procedure for the terminal 120 (see, for example, Non-Patent Document 8). The CPE-CBSD does not have a wired backhaul line and accesses the Internet via the BTS-CBSD. Therefore, it cannot obtain permission to transmit radio waves in the CBRS band from the SAS without special provisions and procedures. The CPE-CBSD Handshake Procedure allows the CPE-CBSD to transmit radio waves at the same maximum EIRP and minimum required duty cycle as the terminal (EUD) until it obtains permission to transmit radio waves from the SAS. In accordance with this, the communication device 110b sets the transmission EIRP to the maximum EIRP of the terminal, and then performs wireless communication with the communication device 110a at the minimum required duty cycle, thereby establishing a line for obtaining permission to transmit radio waves from the information processing device 200. After obtaining permission to transmit radio waves, it becomes possible to use up to the maximum EIRP specified for the communication device within the permitted range.

[0191] (1-2-2-7. Procedures occurring between information processing devices 200) (Information exchange) The information processing device 200 can exchange management information with other information processing devices 200. It is desirable that at least the following information be exchanged: Information related to the communication device 110, area information, and system information to be protected.

[0192] The information related to the communication device 110 includes at least registration information and communication parameter information of the communication device 110 that is operating with permission of the information processing device 200. Registration information of the communication device 110 that does not have permitted communication parameters may also be included.

[0193] The registration information of the communication device 110 typically refers to the device parameters of the communication device 110 that are registered in the information processing device 200 in the registration procedure described above. It is not necessary for all registered information to be exchanged. For example, information that may be considered personal information does not necessarily need to be exchanged. Furthermore, when exchanging the registration information of the communication device 110, the registration information may be encrypted and exchanged, or the content of the registration information may be obfuscated before being exchanged. For example, information converted into binary values ​​or information signed using a digital signature mechanism may be exchanged.

[0194] The communication parameter information of the communication device 110 typically refers to information related to the communication parameters currently being used by the communication device 110. It is desirable that the information includes at least information indicating the frequency to be used and the transmission power. Other communication parameters may also be included.

[0195] Area information typically refers to information that indicates a predetermined geographical area, and this information may include area information with various attributes in various forms.

[0196] For example, the area information may include protection area information of the communication device 110 that is a high-priority secondary system, such as the PPA (PAL Protection Area) in WINNF-TS-0112 (see, for example, Non-Patent Document 14). In this case, the area information may be expressed, for example, as a set of three or more coordinates indicating a geographical location. Furthermore, for example, when multiple information processing devices 200 can reference a common external database, the area information is expressed by a unique ID, and the actual geographical area can be referenced from the external database using the ID.

[0197] Furthermore, for example, information indicating the coverage of the communication device 110 may also be included. In this case, the area information may also be expressed, for example, as a set of three or more coordinates indicating a geographical position. Furthermore, for example, assuming that the coverage is a circle centered on the geographical position of the communication device 110, the area information may also be expressed as information indicating the size of the radius. Furthermore, for example, when a plurality of information processing devices 200 can refer to a common external database that records area information, the information indicating the coverage may be expressed by a unique ID, and the actual coverage may be referenced from the external database using the ID.

[0198] In another aspect, information related to area divisions predetermined by the government or the like may also be included. Specifically, for example, a certain area can be indicated by indicating an address. For example, license areas and the like can also be expressed in a similar manner.

[0199] In yet another aspect, the area information does not necessarily need to represent a planar area, but may represent a three-dimensional space. For example, it may be represented using a spatial coordinate system. Furthermore, information indicating a predetermined closed space, such as the number of floors in a building, floor number, or room number, may be used.

[0200] The protected system information is information about a wireless communication system that is treated as a protected target, such as the incumbent tier described above. A situation in which this information needs to be exchanged is, for example, a situation where cross-border coordination is required. It is quite conceivable that different protected targets exist in the same band between neighboring countries or regions. In such a case, the protected system information can be exchanged between information processing devices 200 belonging to different countries or regions as needed.

[0201] In another aspect, the protected system information may include information on a secondary licensee and information on a wireless system operated by the secondary licensee. A secondary licensee is specifically a license lessee. For example, it is assumed that a secondary licensee rents a PAL from a license holder and operates its own wireless communication system. When the information processing device 200 independently manages the rental, it may exchange information on the secondary licensee and information on the wireless communication system operated by the secondary licensee with other information processing devices 200 for the purpose of protection.

[0202] These pieces of information can be exchanged directly or indirectly between the information processing devices 200 regardless of the decision-making topology applied to the information processing devices 200 .

[0203] This information can be exchanged using various methods, some of which are shown below: ID specification method, period specification method, area specification method, and dump method.

[0204] The ID specification method is a method of acquiring information corresponding to an ID that is assigned in advance to identify information managed by the information processing device 200. For example, assume that the information processing device 200-1 (first information processing device) manages a communication device 110 with "ID: AAA." In this case, the information processing device (second information processing device) 200-2 executes an information acquisition request to the information processing device 200-1 by specifying "ID: AAA." After receiving the request, the information processing device 200-1 executes an information search for "ID: AAA" and notifies information related to the communication device 110 with "ID: AAA," such as registration information and communication parameter information, in a response.

[0205] The period specification method is a method in which information that satisfies predetermined conditions can be exchanged during a specified period.

[0206] The predetermined condition may be, for example, whether or not information has been updated. For example, if the request specifies acquisition of information related to the communication device 110 during a specific period, the response may include registration information of the communication device 110 that was newly registered during the specific period. Furthermore, the response may also include registration information or communication parameter information of the communication device 110 whose communication parameters have been changed during the specific period.

[0207] An example of the predetermined condition is whether or not the information has been recorded by the information processing device 200. For example, if a request specifies acquisition of information related to the communication device 110 during a specific period, the registration information or communication parameter information recorded by the information processing device 200 during the specific period may be notified in the response. If the information has been updated during the specific period, the latest information during the specific period may be notified. Alternatively, an update history may be notified for each piece of information.

[0208] In the area designation method, a specific area is designated, and information on communication devices 110 belonging to the designated area is exchanged. For example, when a request is made to acquire information on communication devices 110 in a specific area, registration information or communication parameter information on communication devices 110 installed in the designated area may be notified in a response.

[0209] The dump method is a method of providing all information recorded by the information processing device 200. It is desirable that at least the information related to the communication device 110 and the area information be provided by the dump method.

[0210] The above description of information exchange between information processing devices 200 is based on the pull method. That is, information corresponding to parameters specified in a request is returned as a response, which can be realized, for example, by the HTTP GET method. However, the method is not limited to the pull method, and information may be actively provided to other information processing devices 200 by the push method. The push method can be realized, for example, by the HTTP POST method.

[0211] (Command / Request Procedure) The information processing devices 200 may issue commands or requests to each other. Specifically, one example is the reconfiguration of communication parameters of the communication device 110. For example, when it is determined that a communication device (first communication device) 110-1 managed by the information processing device 200-1 is receiving significant interference from a communication device (second communication device) 110-2 managed by the information processing device 200-2, the information processing device 200-1 may request the information processing device 200-2 to change the communication parameters of the communication device 110-2.

[0212] Another example is the reconfiguration of area information. For example, if there is a defect in the calculation of coverage information or protection area information related to the communication device 110-2 managed by the information processing device 200-2, the information processing device 200-1 may request the information processing device 200-2 to reconfigure the area information. In addition to this, a request for reconfiguration of area information may be made for various other reasons.

[0213] (1-2-2-8. Information Transmission Means) The notification (signaling) between the entities described above can be realized through various media, but of course, the implementation is not limited to these.

[0214] (Signaling between information processing device 200 and communication device 110) Notification from communication device 110 to information processing device 200 may be executed, for example, at the application layer. For example, it may be executed using HTTP (Hyper Text Transfer Protocol). Signaling can be executed by describing required parameters in the HTTP message body according to a predetermined format. Furthermore, when HTTP is used, notification from information processing device 200 to communication device 110 is also executed according to the mechanism of an HTTP response.

[0215] (Signaling between the communication device 110 and the terminal 120) E-UTRA or 5G NR will be described as an example. Notification from the communication device 110 to the terminal 120 may be performed using, for example, at least one of Radio Resource Control (RRC) signaling, system information (SI), and downlink control information (DCI). In addition, downlink physical channels include a Physical Downlink Control Channel (PDCCH), a Physical Downlink Shared Channel (PDSCH), a Physical Broadcast Channel (PBCH), NR-PDCCH, NR-PDSCH, and NR-PBCH, and may be performed using at least one of these.

[0216] The notification from the terminal 120 to the communication device 110 may be performed using, for example, Radio Resource Control (RRC) signaling or Uplink Control Information (UCI), or may be performed using uplink physical channels (Physical Uplink Control Channel (PUCCH), Physical Uplink Shared Channel (PUSCH), or Physical Random Access Channel (PRACH)).

[0217] Signaling may be performed not only in the physical layer but also in a higher layer. For example, when signaling is performed in the application layer, required parameters may be written in the HTTP message body in a predetermined format.

[0218] (Signaling Between Terminals 120) E-UTRA or 5G NR will be described as an example using FIG. 5 . FIG. 5 is a diagram showing a specific example 4 of the basic principle of the information processing system SYS1 according to the embodiment. FIG. 5 shows an example of a signaling flow when D2D (Device-to-Device) or V2X (Vehicle-to-Everything), which is communication between terminals 120, is assumed as communication of the secondary system. D2D or V2X, which is communication between terminals 120, may be performed using physical sidelink channels (PSCCH: Physical Sidelink Control Channel, PSSCH: Physical Sidelink Shared Channel, PSBCH: Physical Sidelink Broadcast Channel).

[0219] In the example of FIG. 5, the master information processing device 200-1 calculates communication parameters and notifies the communication device 110-1 having the secondary information processing device 200-3. At this time, the information processing device 200-1 may determine and notify the values ​​of the communication parameters, or may determine and notify conditions indicating the range of the communication parameters, etc. The communication device 110-1 acquires the communication parameters and sets the communication parameters to be used by the communication device 110-1 itself. Then, the communication device 110-1 notifies the terminal 120 of the communication parameters intended for the terminal 120 (not shown) under the communication device 110. Each terminal 120 under the communication device 110 acquires and sets the communication parameters intended for the terminal 120. Then, communication with the other terminals 120 is performed.

[0220] 5, information processing device 200-1, which is the master, calculates communication parameters and notifies intermediate device 130, which has information processing device 200-2. At this time, information processing device 200-1 may determine and notify the values ​​of the communication parameters, or may determine and notify conditions indicating the ranges of the communication parameters, etc. Intermediate device 130 acquires the communication parameters and notifies communication device 110-2, communication device 110-3, and communication device 110-4 of the communication parameters. Communication device 110-2, communication device 110-3, and communication device 110-4 acquire the communication parameters and set the communication parameters to be used by communication device 110-2, communication device 110-3, and communication device 110-4 themselves. Communication device 110-2, communication device 110-3, and communication device 110-4 then notify terminal 120 of the communication parameters intended for terminal 120 (not shown) subordinate to communication device 110-2, communication device 110-3, and communication device 110-4. Each of the terminals 120 under the control of the communication device 110-2, the communication device 110-3, and the communication device 110-4 acquires and sets communication parameters for the terminal 120. Then, the terminals 120 communicate with the other terminals 120.

[0221] When a frequency channel subject to frequency sharing is used in a sidelink (direct communication between terminals 120), communication parameters may be notified, acquired, or configured in association with a sidelink resource pool within the frequency channel. The resource pool is radio resources for the sidelink configured using specific frequency resources or time resources. Examples of frequency resources include resource blocks and component carriers. Examples of time resources include radio frames, subframes, slots, and mini-slots. When a resource pool is configured within a frequency channel subject to frequency sharing, the communication device 110 configures the resource pool in the terminal 120 based on at least one of RRC signaling, system information, and downlink control information. The communication device 110 also configures the resource pool and communication parameters to be applied in the sidelink in the terminal 120 based on at least one of RRC signaling, system information, and downlink control information transmitted from the communication device 110 to the terminal 120. The notification of the resource pool configuration and the notification of the communication parameters to be used in the side link may be simultaneous or separate.

[0222] (1-2-3. Example of the Overall Configuration of the Information Processing System SYS1) An example of the overall configuration of the information processing system SYS1 will be described using FIG. 6. FIG. 6 is a block diagram showing an example of the configuration of each device of the information processing system SYS1 according to the embodiment. As shown in FIG. 6, the information processing system SYS1 is composed of an information processing device 200, a communication device 110, and a terminal 120. The information processing device 200 and the communication device 110 are communicatively connected by a communication network N1 realized by the Internet, a dedicated line, or the like. The information processing device 200 and the communication device 110 are communicatively connected by a communication network N2 realized by the Internet, a dedicated line, or the like. The information processing system SYS1 may further include an intermediate device 130, an information recording device 300, an information notification device 400, and the like, which are not shown.

[0223] (1-2-4. Configuration example and processing example of information processing device 200) A configuration example and processing example of the information processing device 200 will be described. The information processing device 200 is configured by a communication unit 210, a storage unit 220, and a control unit 230. Note that the server device 10 may have an input unit (e.g., keyboard, mouse, etc.) that accepts various operations from an administrator of the information processing system SYS1, and a display unit (e.g., liquid crystal display, etc.) that displays various information. Note that the information processing device 200 is realized by, for example, a frequency management server, but is not particularly limited to this.

[0224] (1-2-4-1. Communication Unit 210) The communication unit 210 controls data communication with other devices. For example, the communication unit 210 executes data communication with each communication device via a router or the like. The communication unit 210 can also execute data communication with a terminal not shown.

[0225] (1-2-4-2. Storage Unit 220) The storage unit 220 stores various pieces of information referenced when the control unit 230 operates and various pieces of information acquired when the control unit 230 operates. The storage unit 220 is composed of a radio access method information storage unit 221, a first priority information storage unit 222, a second priority information storage unit 223, and an interference margin information storage unit 224. Here, the storage unit 220 can be realized by, for example, a semiconductor memory element such as a RAM (Random Access Memory) or a flash memory, or a storage device such as a hard disk or an optical disk. Note that in the example of FIG. 6, the storage unit 220 is installed inside the information processing device 200, but it may also be installed outside the information processing device 200, or multiple storage units may be installed.

[0226] (Radio access method information storage unit 221) The radio access method information storage unit 221 stores radio access method information. For example, the radio access method information storage unit 221 stores radio access method information including a radio access method acquired by a first acquisition unit 231 of the control unit 230, which will be described later. Here, an example of data stored in the radio access method information storage unit 221 will be described with reference to FIG. 7 . FIG. 7 is a diagram showing an example of the radio access method information storage unit 221 of the information processing device 200 according to the embodiment. In the example of FIG. 7 , the radio access method information storage unit 221 has items such as "management target area," "management target device," and "radio access method."

[0227] The "managed area" indicates identification information for identifying an area managed by the information processing device 200, and is, for example, an identification number or identification symbol of a communication area where the information processing device 200 manages wireless communication. The "managed device" indicates identification information for identifying a device managed by the information processing device 200, and is, for example, an identification number or identification symbol of a device such as the communication device 110, terminal 120, or intermediate device 130, whose wireless communication is managed by the information processing device 200. The "wireless access method" indicates the wireless access method of the communication device 110, and is, for example, IMT, wireless LAN, etc.

[0228] That is, FIG. 7 shows an example in which, in a managed area identified by "managed area #1," data such as {managed device: "communication device #1," wireless access method: "wireless access method A"}, {managed device: "communication device #2," wireless access method: "wireless access method B"}, {managed device: "communication device #3," wireless access method: "wireless access method AB"}, ... is stored in the wireless access method information storage unit 221.

[0229] (First priority information storage unit 222) The first priority information storage unit 222 stores first priority information. For example, the first priority information storage unit 222 stores first priority information including the first priority acquired by a second acquisition unit 232 of the control unit 230, which will be described later. Here, an example of data stored in the first priority information storage unit 222 will be described with reference to FIG. 8. FIG. 8 is a diagram showing an example of the first priority information storage unit 222 of the information processing device 200 according to the embodiment. In the example of FIG. 8, the first priority information storage unit 222 has items such as "management target area," "time period," and "first priority."

[0230] The "managed area" indicates identification information for identifying an area managed by the information processing device 200, and is, for example, an identification number or identification symbol of a communication area where the information processing device 200 manages wireless communication. The "time period" indicates a time period for which the first priority is set, and is, for example, whether it is a weekday or a holiday, whether it is morning, noon, or night, and is a start time and an end time. The "first priority" indicates the priority of the wireless access method, and is, for example, a wireless access method that is prioritized between IMT and wireless LAN set for each time period, or a numerical value or rank indicating the priority.

[0231] That is, Figure 8 shows an example in which, in the managed area identified by "managed area #1", data such as {time period: "time period #1", first priority: "method A > method B"}, {time period: "time period #2", first priority: "method A < method"}, {time period: "time period #3", first priority: "method A = method B"}, etc. are stored in the first priority information storage unit 222.

[0232] (Second priority information storage unit 223) The second priority information storage unit 223 stores second priority information. For example, the second priority information storage unit 223 stores second priority information indicating the second priority acquired by a second acquisition unit 232 of the control unit 230, which will be described later. Here, an example of data stored in the second priority information storage unit 223 will be described with reference to FIG. 9. FIG. 9 is a diagram showing an example of the second priority information storage unit 223 of the information processing device 200 according to the embodiment. In the example of FIG. 9, the second priority information storage unit 223 has items such as "management target area," "priority level," and "second priority."

[0233] The "managed area" indicates identification information for identifying an area managed by the information processing device 200, and is, for example, an identification number or identification symbol of a communication area in which the information processing device 200 manages wireless communication. The "priority" indicates the ranking of frequency use authority, and is, for example, a ranking set for each frequency use authority, or a numerical value or rank indicating priority. The "second priority" indicates identification information for identifying frequency use authority, and is, for example, an identification number or identification symbol requested by the communication device 110 and assigned by the information processing device 200.

[0234] That is, FIG. 9 shows an example in which, in a management target area identified by "management target area #1", data with {priority: "priority #1", second priority: "frequency use authority X"}, {priority: "priority #2", second priority: "frequency use authority Y", "frequency use authority Z"}, ... is stored in the second priority information storage unit 223.

[0235] (Interference margin information storage unit 224) The interference margin information storage unit 224 stores interference margin information. For example, the interference margin information storage unit 224 stores an interference margin 0233 output by an execution unit 233 of the control unit 230, which will be described later. Here, an example of data stored in the interference margin information storage unit 224 will be described with reference to FIG. 10. FIG. 10 is a diagram showing an example of the interference margin information storage unit 224 of the information processing device 200 according to the embodiment. In the example of FIG. 10, the interference margin information storage unit 224 has items such as "management target area," "management target device," "interference margin," "maximum allowable transmission power," and "access timing."

[0236] The "managed area" indicates identification information for identifying an area managed by the information processing device 200, and is, for example, an identification number or identification symbol of a communication area in which the information processing device 200 manages wireless communication. The "managed device" indicates identification information for identifying a device managed by the information processing device 200, and is, for example, an identification number or identification symbol of a device such as the communication device 110, the terminal 120, or the intermediate device 130, whose wireless communication is managed by the information processing device 200. The "interference margin" indicates communication resources allocated to each communication device 110 during interference protection processing, and is, for example, a first interference margin allocated to the communication device 110A in consideration of cumulative interference during the first interference protection processing, and a second interference margin allocated to the communication device 110B in consideration of single-station interference during the second interference protection processing. "Maximum allowable transmission power" indicates communication resources determined from the interference margin for each communication device 110 during interference protection processing, for example, the first maximum allowable transmission power determined from the first interference margin allocated to communication device 110A during first interference protection processing, or the second maximum allowable transmission power determined from the second interference margin allocated to communication device 110B during second interference protection processing. "Access timing" indicates the timing at which communication device 110 accesses information processing device 200, for example, the first access timing or second access timing determined based on the first priority, or the third access timing determined based on the second priority.

[0237] That is, Figure 10 shows an example in which, in a management target area identified by "management target area #1", data such as {management target device: "communication device #1", interference margin: "interference margin #1", maximum allowable transmission power: "maximum allowable transmission power #1", access timing: "access timing #1"}, {management target device: "communication device #2", interference margin: "interference margin #2", maximum allowable transmission power: "maximum allowable transmission power #2", access timing: "access timing #2"}, {management target device: "communication device #3", interference margin: "interference margin #3", maximum allowable transmission power: "maximum allowable transmission power #3", access timing: "access timing #3"}, ... are stored in the interference margin information storage unit 224.

[0238] (1-2-4-3. Control Unit 230) The control unit 230 is responsible for overall control of the information processing device 200. The control unit 230 is configured by a first acquisition unit 231, a second acquisition unit 232, and an execution unit 233. Here, the control unit 230 can be realized by, for example, an electronic circuit such as a CPU (Central Processing Unit) or an MPU (Micro Processing Unit), or an integrated circuit such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array).

[0239] (First Acquisition Unit 231) The first acquisition unit 231 acquires various types of information. The first acquisition unit 231 can store the acquired various types of information in the storage unit 220. The radio access method acquisition process will be described below.

[0240] (Wireless Access Method Acquisition Process) The first acquisition unit 231 executes a wireless access method acquisition process. For example, the first acquisition unit 231 acquires the wireless access method of each of the multiple communication devices 110. At this time, the first acquisition unit 231 acquires, for example, the wireless access method transmitted by each of the multiple communication devices 110 to the information processing device 200. Furthermore, the first acquisition unit 231 acquires, as the wireless access method, at least one of a first wireless access method (wireless access method A) that is executed by the first communication device, communication device 110A, and emits radio waves at all times, and a second wireless access method (wireless access method B) that is executed by the second communication device, communication device 110B, and emits radio waves at predetermined times. Here, the first wireless access method (wireless access method A) is, for example, IMT. Furthermore, the second wireless access method (wireless access method B) is, for example, wireless LAN.

[0241] Specifically, the first acquisition unit 231 acquires "wireless access method A" from the communication device 110A identified by "communication device #1" and equipped with "wireless access method A" in the management area identified by "management area #1," and stores the information as wireless access method information in the wireless access method information storage unit 221. Furthermore, the first acquisition unit 231 acquires "wireless access method B" from the communication device 110B identified by "communication device #2" and equipped with "wireless access method B" in the management area identified by "management area #1," and stores the information as wireless access method information in the wireless access method information storage unit 221. Furthermore, the first acquisition unit 231 acquires "wireless access method AB" from the communication device 110AB identified by "communication device #3" and equipped with "wireless access method A" and "wireless access method B" in the management area identified by "management area #1," and stores the information as wireless access method information in the wireless access method information storage unit 221.

[0242] (Second Acquisition Unit 232) The second acquisition unit 232 acquires various types of information. The second acquisition unit 232 can store the acquired various types of information in the storage unit 220. The first priority acquisition process and the second priority acquisition process will be described below.

[0243] (First Priority Acquisition Process) The second acquisition unit 232 executes the first priority acquisition process. For example, the second acquisition unit 232 acquires a first priority indicating the priority of a wireless access method. At this time, the second acquisition unit 232 acquires, for example, the first priority transmitted from an administrator terminal used by an administrator of the information processing system SYS1.

[0244] Specifically, in the managed area identified by "managed area #1," the second acquisition unit 232 acquires a first priority "method A > method B," which prioritizes "wireless access method A" over "wireless access method B," during "time slot #1," and stores the first priority information in the first priority information storage unit 222. Furthermore, in the managed area identified by "managed area #1," the second acquisition unit 232 acquires a first priority "method A < method B," which prioritizes "wireless access method B" over "wireless access method A," during "time slot #2," and stores the first priority information in the first priority information storage unit 222. Furthermore, in the managed area identified by "managed area #1," the second acquisition unit 232 acquires a first priority "method A = method B," which prioritizes "wireless access method A" and "wireless access method B" equally during "time slot #3," and stores the first priority information in the first priority information storage unit 222.

[0245] (Second Priority Acquisition Process) The second acquisition unit 232 executes a first priority acquisition process. For example, the second acquisition unit 232 acquires second priorities (second priority levels) indicating frequency usage priorities of the multiple communication devices 110. At this time, the second acquisition unit 232 acquires, for example, the second priorities transmitted by each of the multiple communication devices 110 to the information processing device 200.

[0246] Specifically, the second acquisition unit 232 acquires the second priority "frequency use authority X" from the communication device 110-1 identified by "communication device #1" in the management target area identified by "management target area #1", and stores the second priority information {priority: "priority #1", second priority: "frequency use authority X"} in the second priority information storage unit 223. Furthermore, the second acquisition unit 232 acquires the second priority "frequency use authority Y" from the communication device 110-2 identified by "communication device #2" in the management target area identified by "management target area #1", and stores the second priority information {priority: "priority #2", second priority: "frequency use authority Y"} in the second priority information storage unit 223. In addition, the second acquisition unit 232 acquires the second priority "frequency use authority Z" from the communication device 110-3 identified by "communication device #3" in the management area identified by "management area #1" and stores it in the second priority information memory unit 223 as second priority information {priority: "priority #1", second priority: "frequency use authority Z"}.

[0247] (Execution unit 233) The execution unit 233 executes various processes. The execution unit 233 can refer to various pieces of information stored in the storage unit 220. The execution unit 233 can also store the acquired various pieces of information in the storage unit 220. The following describes the interference protection process, the first priority reference process, the second priority reference process, and the access timing determination process.

[0248] (Interference Protection Process) The execution unit 233 executes interference protection process. For example, the execution unit 233 executes interference protection process to distribute an interference margin to each of the multiple communication devices 110 based on the radio access scheme. At this time, the execution unit 233 executes a first interference protection process (first interference protection process) to distribute an interference margin to the communication device 110A, which is the first communication device, taking into account cumulative interference. Furthermore, the execution unit 233 executes a second interference protection process (second interference protection process) to distribute an interference margin to the communication device 110B, which is the second communication device, taking into account single-station interference.

[0249] Specifically, the execution unit 233 executes a first interference protection process for allocating an interference margin in consideration of cumulative interference to the communication device 110A identified by "communication device #1" and equipped with "radio access method A" in the management area identified by "management area #1," thereby outputting {interference margin: "interference margin #1," maximum allowable transmission power: "maximum allowable transmission power #1"} and storing it as interference margin information in the interference margin information storage unit 224. Also, the execution unit 233 executes a second interference protection process for allocating an interference margin in consideration of single-station interference to the communication device 110B identified by "communication device #2" and equipped with "radio access method B" in the management area identified by "management area #1," thereby outputting {interference margin: "interference margin #2," maximum allowable transmission power: "maximum allowable transmission power #2"} and storing it as interference margin information in the interference margin information storage unit 224.

[0250] (First Priority Reference Processing) The execution unit 233 executes first priority reference processing. For example, the execution unit 233 executes interference protection processing to distribute an interference margin to each of the multiple communication devices 110 based on the first priority. At this time, if the execution unit 233 acquires a first priority in which the first wireless access method (wireless access method A) has a higher priority than the second wireless access method (wireless access method B), the execution unit 233 executes interference protection processing to distribute the interference margin to the communication device 110A with priority. Furthermore, if the execution unit 233 acquires a first priority in which the second wireless access method (wireless access method B) has a higher priority than the first wireless access method (wireless access method A), the execution unit 233 executes interference protection processing to distribute the interference margin to the communication device 110B with priority.

[0251] Specifically, the execution unit 233 references {time period: "time period #1", first priority: "method A>method B"} stored in the first priority information storage unit 222 in the management area identified by "management area #1", and prioritizes execution of the first interference protection process, which distributes an interference margin in consideration of cumulative interference, for the communication device 110A identified by "communication device #1" and equipped with "wireless access method A". Furthermore, the execution unit 233 references {time period: "time period #2", first priority: "method A<method B"} stored in the first priority information storage unit 222 in the management area identified by "management area #1", and prioritizes execution of the second interference protection process, which distributes an interference margin in consideration of single-station interference, for the communication device 110B identified by "communication device #2" and equipped with "wireless access method B".

[0252] (Second Priority Reference Process) The execution unit 233 executes the second priority reference process. For example, the execution unit 233 executes interference protection process for determining the desired maximum transmission power as the transmission power for a communication device 110 whose second priority is higher than that of another communication device 110E. Furthermore, the execution unit 233 executes interference protection process for a communication device 110 whose second priority is lower than that of another communication device 110E, for determining the transmission power that can protect the communication device whose second priority is higher than that of another communication device 110E, with the desired maximum transmission power as the upper limit.

[0253] Specifically, the execution unit 233 refers to {priority: "priority #1", second priority: "frequency use authority X"}, {priority: "priority #2", second priority: "frequency use authority Y", "frequency use authority Z"}, ... stored in the second priority information storage unit 223 in the management target area identified by "management target area #1", and executes interference protection processing to determine a desired maximum transmission power as transmission power for the communication device 110X that has been granted "frequency use authority X". Furthermore, the execution unit 233 executes interference protection processing to determine transmission power that can protect the communication device 110X, with the desired maximum transmission power as an upper limit, for the communication device 110Y that has been granted "frequency use authority Y" and the communication device 110Z that has been granted "frequency use authority Z".

[0254] (Access Timing Determination Process) The execution unit 233 executes the access timing determination process. For example, the execution unit 233 sets, as the timing at which the multiple communication devices 110 access the information processing device 200, a first access timing, which is a first timing for a communication device 110 whose first priority is higher than that of the other communication devices 110E, to a timing later than a second access timing, which is a second timing for a communication device 110 whose first priority is lower than that of the other communication devices 110E. Furthermore, the execution unit 233 sets, as the timing at which the multiple communication devices 110 access the information processing device 200, a third access timing, which is a third timing for a communication device 110 whose second priority is higher than that of the other communication devices 110E, to a timing later than the first access timing.

[0255] Specifically, in the management area identified by "management area #1," if "communication device #1" has a higher first priority than "communication device #2," the execution unit 233 sets the access timing "access timing #1" of "communication device #1" to a timing later than the access timing "access timing #2" of "communication device #2," and stores this as interference margin information in the interference margin information storage unit 224. Furthermore, in the management area identified by "management area #1," if "communication device #1" and "communication device #3" have a higher first priority than "communication device #2," and if "communication device #3" has a higher second priority than "communication device #1" and "communication device #2," the execution unit 233 sets the access timing "access timing #3" of "communication device #3" to a timing later than the access timing "access timing #1" of "communication device #1," and stores this as interference margin information in the interference margin information storage unit 224.

[0256] (1-2-5. Example of Configuration and Processing of Communication Device 110) Referring again to FIG. 6 , an example of the configuration and processing of the communication device 110 will be described. The communication device 110 is a wireless device that provides wireless communication services, and is composed of a transceiver unit 111, a control unit 112, and a communication unit 113. The communication device 110 is a communication device 110A that can execute a wireless access method A that constantly emits radio waves, such as IMT, and is realized, for example, by an IMT base station, but is not particularly limited to this. The communication device 110 is also a communication device 110B that can execute a wireless access method B that emits radio waves at predetermined times, such as wireless LAN, and is realized, for example, by a wireless LAN access point, but is not particularly limited to this.

[0257] (1-2-5-1. Transmitting / receiving unit 111) The transmitting / receiving unit 111 transmits various information. For example, the transmitting / receiving unit 111 transmits a wireless access method to the information processing device 200.

[0258] Specifically, the transmitting / receiving unit 111 transmits wireless access method A including "wireless access method A" to the "information processing device #1" that manages the "management target area #1" that includes the transmitting / receiving unit 111 itself if the transmitting / receiving unit 111 itself has "wireless access method A." Also, the transmitting / receiving unit 111 transmits wireless access method information including "wireless access method B" to the "information processing device #1" that manages the "management target area #1" that includes the transmitting / receiving unit 111 itself if the transmitting / receiving unit 111 itself has "wireless access method B."

[0259] The transmitting / receiving unit 111 receives various types of information. For example, the transmitting / receiving unit 111 receives interference margin information from the information processing device 200.

[0260] Specifically, the transmitter / receiver unit 111 receives interference margin information {interference margin: "interference margin #1", allowable maximum transmission power: "allowable maximum transmission power #1", access timing: "access timing #1"} from the "information processing device #1" that manages the "managed area #1" in which the transmitter / receiver unit 111 is included.

[0261] (1-2-5-2. Control Unit 112) The control unit 112 controls various processes. For example, the control unit 112 accepts interference protection processing by the information processing device 200, which distributes an interference margin based on a radio access method and a first priority indicating the priority of the radio access method. At this time, the control unit 112 provides wireless communication services to the terminal 120 and other communication devices 110E, using the interference margin, maximum allowable transmission power, and the like indicated in the interference margin information received from the information processing device 200. Furthermore, the control unit 112 accesses the information processing device 200 using the access timing indicated in the interference margin information received from the information processing device 200.

[0262] (1-2-5-3. Communication Unit 113) The communication unit 23 controls data communication with other devices. For example, the communication unit 23 performs data communication with each communication device via a router or the like. The communication unit 23 can also perform data communication with an operator's terminal (not shown).

[0263] (1-2-6. Example of Configuration and Processing of Terminal 120) An example of the configuration and processing of the terminal 120 will be described again with reference to Fig. 6. The terminal 120 is a device that performs wireless communication using the wireless communication service provided by the communication device 110, and is realized by, for example, a smartphone, a desktop PC, a notebook PC, or the like, but is not limited to such.

[0264] (1-2-7. Other Configuration Examples) Information processing system SYS1 may further include intermediate device 130 described above. For example, intermediate device 130 executes communication with information processing device 200 on behalf of one or more of the multiple communication devices 110. Information processing system SYS1 may further include information recording device 300 described above. Information processing system SYS1 may further include information notification device 400 described above.

[0265] The information processing system SYS1 may include a plurality of information processing devices 200. For example, the plurality of information processing devices 200 include an information processing device 200A that manages both the communication device 110A and the communication device 110B, and an information processing device 200B that manages either the communication device 110A or the communication device 110B.

[0266] The information processing system SYS1 may include a distributed antenna system as the plurality of communication devices 110.

[0267] 11 to 19, specific examples of each process of the information processing system SYS1 according to the embodiment will be described. Specific examples 1 to 9 of each process of the information processing system SYS1 according to the embodiment will be described below.

[0268] (1-3-1. Specific Example 1) Specific example 1 of each process of the information processing system SYS1 according to the embodiment will be described using FIG. 11 and formulas. FIG. 11 is a diagram showing specific example 1 of each process of the information processing system SYS1 according to the embodiment. Below, as specific example 1, a basic configuration example and processing example of the information processing system SYS1 will be described.

[0269] (1-3-1-1. Overview of information processing system SYS1) The information processing system SYS1 selects one interference protection process from two or more methods for determining the communication parameters used by the communication device 110, depending on the wireless access method and frequency usage priority of the communication device 110, and applies the selected interference protection process to determine the communication parameters of the communication device 110.

[0270] (1-3-1-2. Architecture System Model) As shown in FIG. 11 , the information processing system SYS1 is assumed to include at least two types of communication devices 110 (110A, 110B), and to use frequencies under the management of an information processing device 200 that acts as a frequency management server. Here, the communication device 110A is a "communication device A" equipped with a first wireless access method (wireless access method A). The communication device 110B is a "communication device B" equipped with a second wireless access method (wireless access method B). The first wireless access method and the second wireless access method are different wireless access methods. The communication device 110 may be equipped with both the first wireless access method and the second wireless access method. The communication device 110 may also be applied in an environment where three or more wireless access methods are used, such as a third wireless access method, a fourth wireless access method, and so on.

[0271] 11 , information processing system SYS1 may include intermediate device 130. Here, intermediate device 130 performs the same operations as communication device 110 connected to information processing device 200, acting on behalf of subordinate communication device 110. On the other hand, information processing system SYS1 may not include intermediate device 130, and communication device 110 may be directly connected to information processing device 200. Furthermore, information processing system SYS1 may further include the entities (e.g., information recording device 300, information notification device 400) described above in FIG. 2 .

[0272] (1-3-1-3. Wireless Access Method) As an example of a wireless access method, a wireless access method based on LBT will be described as the second wireless access method (wireless access method B), and one that is not based on LBT will be described as the first wireless access method (wireless access method A). In the above example, a representative example of the communication device 110B equipped with the second wireless access method is a wireless LAN (RLAN) access point, and a representative example of the communication device 110A equipped with the first wireless access method is an IMT base station. Note that the wireless access method is not limited to the above example. For example, using the transmission duty cycle as a reference, a wireless access method that uses a transmission duty cycle of a predetermined value or less may be referred to as the first wireless access method, and a wireless access method that uses a transmission duty cycle of a predetermined value or more may be referred to as the second wireless access method.

[0273] (1-3-1-4. Priority Between Different Wireless Access Methods) The information processing system SYS1 sets a first priority as a processing priority between different wireless access methods.

[0274] (1-3-1-5. Frequency Licensing and Frequency Usage Priority) The information processing system SYS1 typically sets a second priority as a priority corresponding to the frequency usage priority in accordance with the frequency band licensing system. For example, typical examples of the second priority include Priority Access of Tier 2 and GAA of Tier 3 in CBRS, and Priority Access is set to have a higher frequency usage priority than GAA.

[0275] (1-3-1-6. Algorithm for Determining an Interference Protection Processing Method) First, the information processing device 200 refers to the radio access method information provided by the communication device 110. If the communication device 110 has already been registered with the information processing device 200 in accordance with the above-described registration / initialization procedure, the information processing device 200 can refer to the radio access method information included in the registered information. Furthermore, for example, when determining an interference protection processing method in a series of steps in the registration / initialization procedure, the information processing device 200 can directly refer to the radio access method information included in a message transmitted from the communication device 110.

[0276] The information processing device 200 determines whether the referenced radio access method information indicates a first radio access method. If the referenced radio access method information indicates the first radio access method, the information processing device 200 operates to apply a first interference protection processing method to determine communication parameters of the communication device 110. If the referenced radio access method information indicates a second radio access method, the information processing device 200 operates to apply a second interference protection processing method to determine communication parameters of the communication device 110.

[0277] Here, the first interference protection processing method is a process that is executed in consideration of cumulative interference with the protected system, such as the Iterative Allocation Process (IAP) disclosed in WINNF-TS-0112 and adopted as an interference margin distribution method in CBRS. The first interference protection processing method makes it possible to distribute an interference margin to each communication device 110 in consideration of cumulative interference with the protected system, which is calculated based on the desired communication parameters (e.g., frequency channel, maximum transmission power) (also called grant) of the communication device 110.

[0278] In contrast, the second interference protection processing method is processing executed in each communication device 110 based on the single-station interference that the communication device 110 may cause to the protected system. For example, the AFC system introduced in the 6 GHz band in the United States estimates the single-station interference caused by each wireless LAN, rather than the cumulative interference to existing wireless communication systems, and calculates the frequency channels and maximum allowable transmission power EIRP that the wireless LAN can use at each installation location based on the estimated single-station interference, and provides these to the wireless LAN.

[0279] The information processing device 200 executes interference protection processing based on the interference protection processing method and the first priority determined as described above. When communication device A has a higher first priority than communication device B, the information processing device 200 executes interference protection processing for the communication device 110A classified as communication device A first, and executes interference protection processing for the communication device 110B classified as communication device B later. In other words, the information processing device 200 prioritizes distribution of the interference margin to the communication device 110A classified as communication device A, and distributes the remaining interference margin after distribution to the communication device 110A classified as communication device A to the communication device 110B classified as communication device B. On the other hand, when communication device B has a higher first priority than communication device A, the information processing device 200 prioritizes processing for the communication device 110B, which is also classified as communication device B. Furthermore, when the first priorities are equal, the information processing device 200 distributes the interference margin fairly.

[0280] Here, the first priorities of the communication device A and the communication device B are P Ａ and P Ｂ The distribution of the interference margin using the first priority will be described below. Ａ and P Ｂ Although the second priority is not necessarily quantified, an example in which it is treated numerically will be described below. It is also assumed that the second priority is the same for each type in each of communication device A and communication device B. An example in which EIRP is treated as transmission power will be described below, but PSD, conducted power, etc. may also be used in place of EIRP with appropriate modifications. Furthermore, typically, interference protection processing is performed on communication devices 110 that exist in an area (referred to as a neighbor area) in which interference protection processing is performed for an existing system to be protected. However, unless otherwise specified, the following description will be given assuming that the communication device 110 exists in the neighbor area.

[0281] (Terms and symbols) ・I Ａｃｃｅｐｔ［ｄＢｍ］ : Tolerable interference level (threshold) of the protected system receiver. G Ｒｘ［ｄＢ］ : Receiving antenna gain L(n) of the protected system receiver ［ｄＢ］: Radio wave propagation loss between the nth communication device and the protected system receiver · N Ａ N: the number of communication devices 110A classified as communication device A (total number of communication devices A that must be considered in protecting the protection target system) Ｂ : the number of communication devices 110B classified as communication device B (total number of communication devices B that must be considered in protecting the protection target system) PRRequestMaxEirp,nA [dBm]: the number of communication devices 110B classified as communication device A Ａ Desired maximum transmission power (EIRP) of the nth communication device 110A. PRRequestMaxEirp,nB [dBm]: the maximum transmission power (EIRP) of the nth communication device 110A classified as communication device B. Ｂ Desired maximum transmit power (EIRP) of the nth communication device 110B. PAcceptMaxEirp,nA [dBm]: the nth communication device classified as communication device A. Ａ Acceptable maximum transmit power (EIRP) of the nth communication device 110A. PAcceptMaxEirp,nB [dBm]: nth communication device classified as communication device B. Ｂ the maximum allowable transmit power (EIRP) of the th communication device 110B

[0282] (P Ａ >P Ｂ First, the second priority will be explained assuming that all communication devices 110 have the same priority, regardless of whether they are communication device A or communication device B. The interference margin for the existing system to be protected is distributed preferentially to communication device A. Ａ The cumulative interference budget I for communication device A Ｂｕｄｇｅｔ，Ａ「ｄＢｍ」 is expressed as the following equation (4).

[0283]

[0284] Here, I Ａｃｃｅｐｔ［ｄＢｍ］ -I Ｂｕｄｇｅｔ，Ａ［ｄＢｍ］ >0, the cumulative interference budget I Ｂｕｄｇｅｔ，Ａ［ｄＢｍ］ to communication device A, and the rest to communication device B. Ｂｕｄｇｅｔ，Ｂ［ｄＢｍ］ That is, the cumulative interference budget I for communication device B can be distributed as Ｂｕｄｇｅｔ，Ｂ［ｄＢｍ］ is expressed as the following equation (5).

[0285]

[0286] Here, n classified as communication device A Ａ The interference margin IM distributed to the th communication device 110A ｎＡ［ｄＢｍ］ is determined by the following equation (6).

[0287]

[0288] Also, n classified as communication device A Ａ The maximum allowable transmission power PAcceptMaxEirp,nA [dBm] allocated to the th communication device 110A is determined by the following equation (7).

[0289]

[0290] For the communication device 110B classified as communication device B, as described above, the interference margin is distributed based on single station interference as the second interference processing method. Ｂｕｄｇｅｔ，Ｂ［ｄＢｍ］ The n that is classified as communication device B as it is Ｂ Therefore, the nth communication device 110B can be allocated to the nth communication device 110B. Ｂ The maximum allowable transmission power PAcceptMaxEirp,nB [dBm] allocated to the th communication device 110B is determined by the following equation (8).

[0291]

[0292] Here, with regard to the second priority, it becomes necessary to protect a high-priority communication device 110 from a low-priority communication device 110. At this time, interference protection processing for the high-priority communication device 110 is executed with PAcceptMaxEirp,nA [dBm] or PAcceptMaxEirp,nB [dBm] determined as described above based on the protection of the existing system to be protected as an upper limit, and an allowable maximum transmission power capable of protecting not only the existing system to be protected but also the high-priority communication device 110 is calculated.

[0293] I Ａｃｃｅｐｔ［ｄＢｍ］ -I Ｂｕｄｇｅｔ，Ａ［ｄＢｍ］ = 0, the cumulative interference budget I Ｂｕｄｇｅｔ，Ａ［ｄＢｍ］can be distributed to communication device A, but cannot be distributed to communication device B. Therefore, for the purpose of protecting the existing system to be protected, it is determined that the same frequency channel as that of the existing system to be protected cannot be used for communication device B.

[0294] I Ａｃｃｅｐｔ［ｄＢｍ］ -I Ｂｕｄｇｅｔ，Ａ［ｄＢｍ］ <0, the cumulative interference budget I Ｂｕｄｇｅｔ，Ａ［ｄＢｍ］ Therefore, the amount of distribution may be adjusted based on processing such as IAP so that the interference margin can be sequentially distributed to as many communication devices A as possible. In this case, too, distribution to communication device B is not possible. Therefore, for the purpose of protecting the existing system to be protected, it is determined that the same frequency channel as that of the existing system to be protected cannot be used for communication device B.

[0295] (P Ａ <P Ｂ First, we will assume that the second priority is the same for all communication devices 110, regardless of whether they are communication device A or communication device B. In this case, it is also possible to distribute the interference margin to each communication device 110 using the same concept as above. However, in the above example, the remaining interference margin is calculated as I Ｂｕｄｇｅｔ，Ｂ［ｄＢｍ］ However, I Ｂｕｄｇｅｔ，Ａ［ｄＢｍ］ Then, the remaining interference margin is calculated as I Ｂｕｄｇｅｔ，Ａ［ｄＢｍ］ As described above, the second interference processing method is applied to the communication device B, and the interference margin is distributed based on the single-station interference. Therefore, in order to achieve protection in the worst case of the amount of interference suffered by the protected system, I is determined as shown in the following equation (9). Ｂｕｄｇｅｔ，Ｂ［ｄＢｍ］ It is desirable to determine:

[0296]

[0297] Here, I Ａｃｃｅｐｔ［ｄＢｍ］ -I Ｂｕｄｇｅｔ，Ａ［ｄＢｍ］ If it is >0, I Ｂｕｄｇｅｔ，Ｂ［ｄＢｍ］ can be distributed, and the desired maximum transmission power PRRequestMaxEirp,nB [dBm] is n ＢThe maximum allowable transmission power PAcceptMaxEirp,nB [dBm] for the th communication device 110B is then Ｂｕｄｇｅｔ，Ｂ［ｄＢｍ］ The remainder after distributing is assigned to communication device A as cumulative interference budget I Ｂｕｄｇｅｔ，Ａ［ｄＢｍ］ It is distributable as

[0298]

[0299] That is, the following formula (11) is achieved.

[0300]

[0301] Here, n classified as communication device A Ａ The interference margin IM distributed to the th communication device 110A ｎＡ［ｄＢｍ］ is determined as shown in the following equation (12).

[0302]

[0303] Also, n classified as communication device A Ａ The maximum allowable transmission power PAcceptMaxEirp,nA [dBm] allocated to the th communication device 110A is determined by the following equation (13).

[0304]

[0305] Communication device B is equipped with a second wireless access method, i.e., a wireless access method based on LBT, and there is a possibility that it will be used unlicensed. Therefore, the information processing device 200 may not be able to manage the installation location and the frequency used of the communication device 110 in association with each other. In particular, when using a stateless API such as the AFC System, it becomes impossible to calculate cumulative interference using the desired maximum transmission power PRrequestMaxEirp,nB [dBm] in advance as described above. Therefore, in such a case, the following processing is performed.

[0306] When an Exclusion Zone or Protection Zone (hereinafter referred to as Zone) is provided for the purpose of protecting a target system and a predetermined location (space) is associated with a maximum allowable transmission power, the boundary of the Zone is where the worst case scenario may occur. Therefore, assuming that a communication device 110 exists on the boundary, an interference budget is calculated based on the maximum allowable transmission power that can be used on the boundary. The calculated interference budget is referred to as I Ｂｕｄｇｅｔ，Ｂ［ｄＢｍ］ Let's say.

[0307] On the other hand, if such a zone does not exist, the neighbor area is gridded including the height direction, and all grid points are considered to be locations where the communication device 110 may exist. The location with the largest interference budget is selected, and the interference budget is calculated as I Ｂｕｄｇｅｔ，Ｂ［ｄＢｍ］ The interference budget at each point can be calculated using, for example, a numerical value specified by the transmission power class. If the calculated interference budget exceeds the threshold at any point, it is desirable to change the transmission power value and repeat the calculation until the threshold is no longer exceeded at all points. The worst interference budget based on the transmission power when the threshold is no longer exceeded at all points is defined as I Ｂｕｄｇｅｔ，Ｂ［ｄＢｍ］ It can be said that:

[0308] Here, with regard to the second priority, it becomes necessary to protect a high-priority communication device 110 from a low-priority communication device 110. In this case, interference protection processing for the high-priority communication device 110 is performed with the upper limit set to PAcceptMaxEirp,nA [dBm] or PAcceptMaxEirp,nB [dBm] determined as described above based on the protection of the existing system to be protected, and the maximum allowable transmission that can protect not only the existing system to be protected but also the high-priority communication device 110 is obtained. However, as described above, communication device B may be used unlicensed, and may be set to a high second priority only within a specific area or space, such as a geofence, and may be freely installed and operated within that area. Therefore, it is desirable to perform interference protection processing for communication device B using a method such as an Exclusion Zone or Protection Zone.

[0309] IＡｃｃｅｐｔ［ｄＢｍ］ -I Ｂｕｄｇｅｔ，Ａ［ｄＢｍ］ = 0, the cumulative interference budget I Ｂｕｄｇｅｔ，Ｂ［ｄＢｍ］ can be distributed to communication device B, but cannot be distributed to communication device A. Therefore, for the purpose of protecting the existing system to be protected, it is determined that the same frequency channel as that of the existing system to be protected cannot be used for communication device A.

[0310] I Ａｃｃｅｐｔ［ｄＢｍ］ -I Ｂｕｄｇｅｔ，Ａ［ｄＢｍ］ <0, the cumulative interference budget I Ｂｕｄｇｅｔ，Ｂ［ｄＢｍ］ It is impossible to distribute I. Ｂｕｄｇｅｔ，Ｂ［ｄＢｍ］ By changing the value of the maximum transmission power used in the calculation and recalculating, the amount of distribution may be adjusted so that the interference margin can be sequentially distributed to as many communication devices B as possible. In this case, too, it is not possible to distribute to communication device A. Therefore, for the purpose of protecting the existing system to be protected, it is determined that the same frequency channel as that of the existing system to be protected cannot be used for communication device A.

[0311] (P Ａ =P Ｂ First, the following description will be given assuming that the second priority is the same for all communication devices 110, regardless of whether they are communication device A or communication device B. In this case, the amount of interference budget allocation for communication device A and communication device B is determined based on the cumulative interference obtained by combining the cumulative interference by communication device A and the worst-case single-station interference by communication device B, and the amount of interference margin allocation to each individual communication device 110 is determined. In this case, the amount of interference margin allocation is determined so as to satisfy the following formula (14).

[0312]

[0313] That is, an interference margin allocation method represented by an IAP or the like is applied to each communication device 110A classified as communication device A and a communication device B that may cause the worst-case of single-station interference as cumulative interference sources for the protected system, and the amount of interference margin allocation is determined. For the other communication devices B, the interference margin allocation amount determined for the communication device B that may cause the worst-case is applied. For all communication devices 110, the maximum allowable transmission power is determined based on the applied interference margin allocation amount.

[0314] Here, regarding the second priority, if the communication device 110A corresponding to the communication device A has a higher priority, P Ａ >P Ｂ In the example of the case where the communication device 110B corresponding to the communication device B is high, P Ａ <P Ｂ It is possible to apply the example in the case of

[0315] (1-3-2. Specific Example 2) Specific example 2 of each process of the information processing system SYS1 according to the embodiment will be described using Fig. 12 and Fig. 13. Fig. 12 is a diagram showing a specific example 2-1 of each process of the information processing system SYS1 according to the embodiment. Fig. 13 is a diagram showing a specific example 2-2 of each process of the information processing system SYS1 according to the embodiment. Below, as specific example 2, an example of application of the first priority and the second priority will be described.

[0316] (1-3-2-1. Example of application of first priority) As described above, the information processing system SYS1 refers to the first priority and distributes interference margins by giving priority to the communication device 110 equipped with the wireless access method with the higher first priority out of wireless access method A and wireless access method B.

[0317] The example of Figure 12 (1) shows an example of application in which, when wireless access method A has a higher first priority than wireless access method B, communication device 110A equipped with wireless access method A has priority over communication device 110B equipped with wireless access method B.

[0318] The example of Figure 12 (2) shows an example of application in which, when wireless access method B has a higher first priority than wireless access method A, communication device 110B equipped with wireless access method B has priority over communication device 110A equipped with wireless access method A.

[0319] (1-3-2-2. Example of application of second priority) As described above, the information processing system SYS1 refers to the second priority and distributes interference margins preferentially to communication devices 110 that have been granted frequency usage rights with a higher second priority.

[0320] The example of Figure 13 (1) shows an image of an application example in which wireless access method A has a higher first priority than wireless access method B, and among operators Op1, Op2, and Op3 that manage a communication device 110A equipped with wireless access method A, operator Op1, which has a higher second priority, is given priority over operators Op2 and Op3, which have a lower second priority.

[0321] The example of Figure 13 (2) shows an image of an application example in which wireless access method A has a higher first priority than wireless access method B, and among operators Op1, Op2, and Op3 that manage a communication device 110A equipped with wireless access method A, operator Op2, which has a higher second priority, is given priority over operators Op1 and Op3, which have a lower second priority.

[0322] (1-3-3. Specific Example 3) Specific example 3 of each process of the information processing system SYS1 according to the embodiment will be described using FIGS. 14 to 16. FIG. 14 is a diagram showing a specific example 3-1 of each process of the information processing system SYS1 according to the embodiment. FIG. 15 is a diagram showing a specific example 3-2 of each process of the information processing system SYS1 according to the embodiment. FIG. 16 is a diagram showing a specific example 3-3 of each process of the information processing system SYS1 according to the embodiment. Below, as specific example 3, coordination of the information processing system SYS1 including multiple information processing devices 200 will be described.

[0323] In the information processing system SYS1, cumulative interference must be taken into consideration when protecting the existing system to be protected, and if multiple information processing devices 200 exist, coordination must be performed among the multiple information processing devices 200. For example, in the case of CBRS, multiple companies each operate SASs and periodically perform coordination (referred to as CPAS) for cumulative interference protection in the information processing system SYS1. On the other hand, in the information processing system SYS1, there is a possibility that the information processing device 200 only supports communication devices 110 equipped with a specific wireless access method. Since the information processing system SYS1 performs different interference protection processes depending on the wireless access method, it is necessary to assume that such information processing devices 200 exist.

[0324] 14, an information processing device 200-1 executes interference protection processing for a communication device 110A-1 having a wireless access method A and a communication device 110B-1 having a wireless access method B. Also, in the example of Fig. 14, an information processing device 200-2 provides wireless communication services to a communication device 110A-2 having a wireless access method A and a communication device 110A-3 having a wireless access method A.

[0325] 15, an information processing device 200-1 executes interference protection processing for a communication device 110A-1 having a wireless access method A and a communication device 110B-1 having a wireless access method B. Also, in the example of Fig. 15, an information processing device 200-2 provides wireless communication services to a communication device 110B-2 having a wireless access method B and a communication device 110B-3 having a wireless access method B.

[0326] In the information processing system SYS1, it is desirable that the information processing device 200-2 in FIG. 15 above be able to support only communication device B without being equipped with the functions necessary to support communication device A. More specifically, in the information processing system SYS1, since the information processing devices 200-1 and 200-2 each need to perform protection of the existing system to be protected, it is desirable that communication device A managed by the information processing device 200-1 be able to be easily protected when the second priority is high. As described above, in the information processing system SYS1, interference protection processing is applied to communication device B based on single-station interference. Therefore, in order to enable protection based on single-station interference, the information processing device 200-1 provides an Exclusion Zone / Protection Zone (hereinafter referred to as a protection area) for communication device 110A corresponding to communication device A, and the information processing device 200-2 is able to acquire that information. In the information processing system SYS1, the protection area for communication device A can be calculated and constructed, for example, in the same manner as the PPA specified in WINNF-TS-0112 for CBRS. Furthermore, in the information processing system SYS1, for example, in addition to the PPA construction procedure, a procedure for further expanding the range may be added. Specifically, the PPA is calculated as an area that satisfies a certain power level with respect to the reach of radio waves emitted by the communication device, but there is a possibility that significant interference may reach the PPA from outside the PPA. Therefore, the information processing system SYS1 may calculate a first area (see the shaded area in FIG. 16 ) using a method similar to the PPA, and further identify an area outside the first area where communication device 110B, corresponding to communication device B, may cause a certain level of interference to the first area as a second area (see the vertically lined area in FIG. 16 ), and the area constructed by combining the first area and the second area may be defined as the protection area. Furthermore, in the information processing system SYS1, in addition to the protection area information regarding the protection area, it is desirable that the information processing device 200-2 be able to acquire interference margin information distributed to communication device A for the existing system to be protected, in which communication device A involved in this protection area is included in the neighbor area.As described above, in the information processing system SYS1, the information processing device 200-2 can protect the existing system to be protected without acquiring detailed information about the communication device A from the information processing device 200-1.

[0327] In the information processing system SYS1, for the information processing device 200-2 in Fig. 14 above, if the second priority of the communication device 110B corresponding to communication device B managed by the information processing device 200-1 is high, the second priority may be set high only within a specific area / space such as a geofence. In the information processing system SYS1, it is desirable that the information processing device 200-1 enables the information processing device 200-2 to acquire information related to such a geofenced area / space, and uses the information related to the geofenced area / space acquired by the information processing device 200-2 to manage the communication device 110A corresponding to communication device A managed by the information processing device 200-1 so as to be protected from cumulative interference wherever in the geofenced area / space.

[0328] (1-3-4. Specific Example 4) Specific example 4 of each process of the information processing system SYS1 according to the embodiment will be described using FIGS. 17 to 19. FIG. 17 is a diagram showing a specific example 4-1 of each process of the information processing system SYS1 according to the embodiment. FIG. 18 is a diagram showing a specific example 4-2 of each process of the information processing system SYS1 according to the embodiment. FIG. 19 is a diagram showing a specific example 4-3 of each process of the information processing system SYS1 according to the embodiment. Below, as specific example 4, a method of calculating available channels for the communication device 110B having the second wireless access method will be described.

[0329] In the information processing system SYS1, the first interference protection process is applied to the communication device 110A having the wireless access method A based on desired communication parameters (e.g., frequency channel, maximum transmission power). On the other hand, in the information processing system SYS1, information on the communication parameters to be used for the communication device 110B having the wireless access method B is not necessarily provided to the information processing device 200. Therefore, in the information processing system SYS1, the communication device 110A having the wireless access method A cannot execute frequency usage unless the information processing device 200 provides information corresponding to an available channel list (a list of pairs of frequency channels and maximum transmission powers usable in the frequency channels). An example of a process for determining the above-mentioned available channel list is shown below.

[0330] (1-3-4-1. Setting the Timing of Access to Information Processing Device 200 for Communication Device 110 / Intermediate Device 130) Information processing system SYS1 is an environment in which wireless communication systems with different characteristics coexist, and the presence of autonomously operating systems such as wireless LANs is considered to increase the difficulty of providing interference protection for high-priority systems. Therefore, information processing system SYS1 can efficiently perform interference protection by determining and applying the timing at which communication device 110 accesses information processing device 200 based on the wireless access method or frequency usage priority. Note that the above "access" refers to transmitting a request to information processing device 200 based on an available frequency information inquiry procedure or a frequency use authorization procedure, and obtaining a corresponding response message.

[0331] Here, it is assumed that in the information processing system SYS1, the information processing device 200 periodically executes processing related to protection of an existing system to be protected in a target frequency band (hereinafter referred to as "periodic processing"). At this time, if a second priority based on a wireless access method or frequency usage priority is further established between the communication devices 110, the information processing system SYS1 also executes high-priority system protection processing (protecting the high-priority communication device 110 from interference from the low-priority communication device 110) in the periodic processing.

[0332] Furthermore, in the information processing system SYS1, if the high priority communication device 110H is a new entrant and the low priority communication device 110L is already operating near the location where the high priority communication device 110H is installed and at the frequency it is trying to use, then if the high priority communication device 110H is first accessed and the results of the periodic processing are applied, the high priority communication device 110H is very likely to be interfered with by the low priority communication device 110L. In other words, in the information processing system SYS1, the above situation can occur when communication device B is emitting radio waves somewhere within the estimated coverage of communication device A, as shown in Figure 17. Furthermore, in the information processing system SYS1, there is a good chance that it will be affected even if it is located nearby outside the coverage.

[0333] Furthermore, in the information processing system SYS1, the low priority communication device 110L may also experience interference from the high priority communication device 110H, causing communication with the terminal 120 to be blocked due to the effects of LBT, and there is a risk that the results of periodic processing, i.e., the update of communication parameters, may not be properly applied.

[0334] Therefore, the information processing system SYS1 executes the following process as a countermeasure against the above problem. First, in the information processing system SYS1, the information processing device 200 sets a first access timing for communication device A, which is the high priority communication device 110H, and a second access timing for communication device B, which is the low priority communication device 110L. At this time, the information processing device 200 counts from the end of the periodic processing and sets the first access timing to be later than the second access timing. Furthermore, communication device A, which is the high priority communication device 110H, accesses the information processing device 200 based on the set first access timing, obtains information regarding the results of the periodic processing, and executes communication parameter update processing (see the dashed arrow in FIG. 18 ). Furthermore, communication device B, which is the low priority communication device 110L, accesses the information processing device 200 based on the set second access timing, obtains information regarding the results of the periodic processing, and executes communication parameter update processing (see the dashed arrow in FIG. 18 ). As a result, in the information processing system SYS1, the communication parameters of the lower priority communication device 110L are updated first, making it possible to reduce the impact on the higher priority communication device 110H.

[0335] Furthermore, in the information processing system SYS1, when a frequency usage priority, i.e., a second priority, is set based on location and time, the information processing device 200 can set a third access timing and allow the communication device 110 to which the frequency usage priority is applied to access the information processing device 200 based on the third access timing. In this case, it is desirable that the information processing device 200 notify the communication device 110 to which the frequency usage priority is applied of the third access timing in a response to a registration / initialization procedure or a frequency use authorization procedure. Furthermore, the information processing device 200 sets the third access timing to be even later than the first access timing.

[0336] By executing the above processing, the information processing system SYS1 can efficiently and effectively handle IMT and wireless LAN at the same time.

[0337] Furthermore, it is desirable for the communication device 110 to periodically or aperiodically access the information processing device 200 during the period between two periodic processes. This access timing may be set separately from the first access timing and the second access timing. For example, it is possible that the first priorities of communication device A and communication device B may be swapped. It is also possible that a new frequency usage priority may be set and applied after the periodic process. To accommodate such situations, it is desirable to be able to acquire information regarding the first access timing or the second access timing from the information processing device 200 when periodically or aperiodically accessing the information processing device 200 during the period between two periodic processes. In other words, the information processing device 200 may notify the communication device 110 of changes in frequency usage priority, changes in the first priorities of communication device A and communication device B, or acquire related information during the period between two periodic processes. Based on the acquired information, the information processing device 200 may provide the communication device 110 with information regarding the first access timing or the second access timing.

[0338] 19 , the information processing device 200 may set the access timing in a similar manner when managing one antenna unit of a DAS (distributed antenna system) as the communication device 110, and when any antenna unit of a specific DAS may cause interference with a communication device of a different priority (or any antenna unit of another DAS). In this case, it is desirable for the information processing device 200 to set the same access timing for all antenna units in the same DAS.

[0339] 20 to 23, the process flow of the information processing system SYS1 according to the embodiment will be described. Below, the process flow of the information processing system SYS1 as a whole will be described, and then each process, that is, the interference margin information output process, the interference margin notification process, and the communication execution process, will be described.

[0340] (1-4-1. Overall Processing of Information Processing System SYS1) The overall processing flow of the information processing system SYS1 according to the embodiment will be described using FIG. 20. FIG. 20 is a flowchart showing an example of the overall processing flow of the information processing system SYS1 according to the embodiment. Note that the processing of steps S101 to S103 below can also be executed in a different order. Also, some of the processing of steps S101 to S103 below may be omitted.

[0341] (1-4-1-1. Interference Margin Information Output Processing) First, the information processing system SYS1 executes interference margin information output processing (step S101). For example, the information processing system SYS1 executes processing of steps S203 to S210 described later to output interference margin information for executing interference protection processing of the communication device 110.

[0342] (1-4-1-2. Interference Margin Notification Processing) Second, the information processing system SYS1 executes interference margin notification processing (step S102). For example, the information processing system SYS1 notifies the communication device 110 of the output interference margin information by executing processing of steps S301 to S303 described later.

[0343] (1-4-1-3. Communication Execution Process) Third, the information processing system SYS1 executes a notification execution process (step S103). For example, the information processing system SYS1 executes the processes of steps S401 to S403 described below to provide a wireless communication service based on the interference margin information notified to the communication device 110.

[0344] (1-4-2. Interference margin information output processing) The flow of interference margin information output processing of the information processing system SYS1 according to the embodiment will be described using FIG. 21. FIG. 21 is a flowchart showing an example of the flow of interference margin information output processing of the information processing system SYS1 according to the embodiment. Note that the processing of steps S201 to S210 below can also be executed in a different order. Furthermore, some of the processing of steps S201 to S210 below may be omitted.

[0345] (1-4-2-1. Radio Access Method Information Reference Process) First, the information processing device 200 executes a radio access method information reference process (step S201), and proceeds to the process of step S202. For example, the information processing device 200 references the radio access method for each communication device 110 indicated by the radio access method information stored in the radio access method information storage unit 221.

[0346] (1-4-2-2. First Priority Information Reference Process) Second, the information processing device 200 executes first priority information reference process (step S202) and proceeds to the process of step S203. For example, the information processing device 200 refers to the first priority of the wireless access method for each time period indicated by the first priority information stored in the first priority information storage unit 222. At this time, if wireless access method A is higher than wireless access method B in terms of first priority (step S203: P Ａ >P Ｂ On the other hand, if the wireless access method B has a higher first priority than the wireless access method A (step S203: P Ａ <P Ｂ ), the process proceeds to step S206.

[0347] (1-4-2-3. First interference margin information calculation process) Third, the information processing device 200 executes first interference margin information calculation process (step S204), and proceeds to the process of step S205. For example, the information processing device 200 calculates the interference margin and the maximum allowable transmission power of the communication device 110A equipped with the wireless access method A.

[0348] (1-4-2-4. Second interference margin information calculation process) Fourth, the information processing device 200 executes second interference margin information calculation process (step S205), and proceeds to the process of step S208. For example, the information processing device 200 calculates the interference margin and the maximum allowable transmission power of the communication device 110B equipped with the wireless access method B.

[0349] (1-4-2-5. Second interference margin information calculation process) Fifth, the information processing device 200 executes second interference margin information calculation process (step S206), and proceeds to the process of step S207. For example, the information processing device 200 calculates the interference margin and the maximum allowable transmission power of the communication device 110B equipped with the wireless access method B.

[0350] (1-4-2-6. First interference margin information calculation process) Sixth, the information processing device 200 executes first interference margin information calculation process (step S207) and proceeds to the process of step S208. For example, the information processing device 200 calculates the interference margin and the maximum allowable transmission power of the communication device 110A equipped with the wireless access method A.

[0351] (1-4-2-7. Second priority information reference process) Seventh, the information processing device 200 executes second priority information reference process (step S208), and proceeds to the process of step S209. For example, the information processing device 200 refers to the second priority of the frequency use authority indicated by the second priority information stored in the second priority information storage unit 223.

[0352] (1-4-2-8. Interference margin information determination process) Eighth, the information processing device 200 executes interference margin information determination process (step S209) and proceeds to the process of step S210. For example, the information processing device 200 determines interference margin information to be transmitted to the communication device 110 based on the referenced second priority. At this time, the information processing device 200 may determine the timing of access from the communication device 110 to the information processing device 200, along with the interference margin and the maximum allowable transmission power.

[0353] (1-4-2-9. Interference margin information storage process) Eighth, the information processing device 200 executes interference margin information storage process (step S210) and ends the interference margin information output process. For example, the information processing device 200 stores the interference margin information including the output interference margin, maximum allowable transmission power, and access timing in the interference margin information storage unit 224.

[0354] (1-4-3. Interference margin notification processing) The flow of interference margin notification processing of the information processing system SYS1 according to the embodiment will be described using FIG. 22. FIG. 22 is a flowchart showing an example of the flow of interference margin notification processing of the information processing system SYS1 according to the embodiment. Note that the processing of steps S301 to S303 below can also be executed in a different order. Furthermore, some of the processing of steps S301 to S303 below may be omitted.

[0355] (1-4-3-1. Interference margin information reference process) First, the information processing device 200 executes interference margin information reference process (step S301), and proceeds to the process of step S302. For example, the information processing device 200 refers to the interference margin information stored in the interference margin information storage unit 224.

[0356] (1-4-3-2. Transmission Destination Identification Process) Second, the information processing device 200 executes transmission destination identification process (step S302), and proceeds to the process of step S303. For example, the information processing device 200 identifies the communication device 110 that transmits the interference margin information, using the identification information of the communication device 110 indicated by the radio access method information stored in the radio access method information storage unit 221.

[0357] (1-4-3-3. Interference margin information transmission process) Third, the information processing device 200 executes interference margin information transmission process (step S303) and ends the interference margin notification process. For example, the information processing device 200 transmits the referenced interference margin information to the communication device 110 identified as the destination.

[0358] (1-4-4. Communication Execution Processing) The flow of communication execution processing of the information processing system SYS1 according to the embodiment will be described using FIG. 23. FIG. 23 is a flowchart showing an example of the flow of communication execution processing of the information processing system SYS1 according to the embodiment. Note that the processing of steps S401 to S404 below can also be executed in a different order. Also, some of the processing of steps S401 to S404 below may be omitted.

[0359] (1-4-4-1. Interference margin information reception processing) First, the communication device 110 executes interference margin information reception processing (step S401) and proceeds to processing in step S402. For example, the communication device 110 receives interference margin information transmitted by the information processing device 200. At this time, if the communication device 110 is the communication device 110A equipped with wireless access method A (step S402: wireless access method A), the communication device 110 proceeds to processing in step S403. On the other hand, if the communication device 110 is the communication device 110B equipped with wireless access method B (step S402: wireless access method B), the communication device 110 proceeds to processing in step S404.

[0360] (1-4-4-2. First Communication Process) Second, the communication device 110A executes the first communication process (step S403) and ends the communication execution process. For example, the communication device 110A provides a wireless communication service that employs a wireless access method A that constantly emits radio waves, such as IMT, to the terminal 120 and another communication device 110E.

[0361] (1-4-4-3. Second Communication Process) Third, the communication device 110B executes the second communication process (step S404) and ends the communication execution process. For example, the communication device 110B provides a wireless communication service to the terminal 120 or another communication device 110EE, using a wireless access method B that emits radio waves at a predetermined time, such as a wireless LAN.

[0362] 2. Effects of the embodiment Finally, effects of the embodiment will be described below. Effects corresponding to the processing according to the embodiment will be described below.

[0363] The process according to the embodiment described above includes an information processing system SYS1, an information processing device 200, and a plurality of communication devices 110. The information processing device 200 acquires the wireless access method of each of the plurality of communication devices 110, acquires a first priority indicating the priority of the wireless 0352 method, and executes interference protection processing to distribute an interference margin to each of the plurality of communication devices 110 based on the wireless access method and the first priority. Therefore, this processing can efficiently manage the communication devices 110 in the wireless communication system.

[0364] In the process according to the embodiment described above, the information processing device 200 acquires at least one of the wireless access method A, which is executed by the communication device 110A and emits radio waves at all times, and the wireless access method B, which is executed by the communication device 110B and emits radio waves at predetermined times, as the wireless access method. Therefore, in this process, it is possible to efficiently manage the communication devices 110 in a wireless communication system in which different wireless access methods coexist.

[0365] In the process according to the embodiment described above, the information processing device 200 executes a first interference protection process for allocating an interference margin to the communication device 110A in consideration of cumulative interference. Therefore, in this process, by allocating an interference margin in consideration of cumulative interference, it is possible to efficiently manage the communication device 110 in the wireless communication system.

[0366] In the process according to the embodiment described above, the information processing device 200 executes a second interference protection process for allocating an interference margin to the communication device 110B in consideration of single-station interference. Therefore, in this process, the communication device 110 in the wireless communication system can be efficiently managed by allocating the interference margin in consideration of single-station interference.

[0367] In the process according to the embodiment described above, when the information processing device 200 acquires a first priority in which the wireless access method A has a higher priority than the wireless access method B, the information processing device 200 executes an interference protection process in which the interference margin is preferentially distributed to the communication device 110A. Therefore, in this process, the interference margin is preferentially distributed in consideration of the accumulated interference, thereby enabling efficient management of the communication devices in the wireless communication system.

[0368] In the process according to the embodiment described above, when the information processing device 200 acquires the first priority in which the wireless access method B has a higher priority than the wireless access method A, the information processing device 200 executes an interference protection process in which the interference margin is preferentially distributed to the communication device 110B. Therefore, in this process, the interference margin is preferentially distributed in consideration of single-station interference, thereby enabling efficient management of the communication devices in the wireless communication system.

[0369] In the process according to the embodiment described above, the information processing device 200 acquires second priorities indicating frequency usage priorities of the plurality of communication devices 110, and executes interference protection process for determining the desired maximum transmission power as the transmission power for the communication devices 110 whose second priorities are higher than those of the other communication devices 110E. Therefore, in this process, the communication devices 110 in the wireless communication system can be efficiently managed by preferentially allocating the interference margin to the communication devices 110 with high frequency usage priorities.

[0370] In the processing according to the embodiment described above, the information processing device 200 acquires second priorities indicating frequency usage priorities of the multiple communication devices 110, and executes interference protection processing to determine, for the communication devices 110 whose second priorities are lower than those of the other communication devices 110E, transmission power capable of protecting the communication devices 110 whose second priorities are higher than those of the other communication devices 110E, with the desired maximum transmission power as an upper limit. Therefore, in this processing, the communication devices 110 in the wireless communication system can be efficiently managed by appropriately distributing interference margins to the communication devices 110 whose frequency usage priorities are low.

[0371] In the process according to the embodiment described above, the information processing system SYS1 further includes an intermediate device 130 that communicates with the information processing device 200 on behalf of one or more of the plurality of communication devices 110. Therefore, in this process, the intermediate device 130 mediates the communication between the information processing device 200 and the communication device 110, thereby making it possible to efficiently manage the communication device 110 in the wireless communication system.

[0372] In the process according to the embodiment described above, the information processing devices 200 are an information processing device 200-1 that manages both the communication device 110A and the communication device 110B, and an information processing device 200-2 that manages either the communication device 110A or the communication device 110B. Therefore, in this process, it is possible to efficiently manage the communication devices 110 in a complex wireless communication system that includes multiple information processing devices 200.

[0373] In the process according to the embodiment described above, the information processing device 200 sets the first access timing for a communication device 110 whose first priority is higher than that of the other communication devices 110E, as the timing at which a plurality of communication devices 110 access the information processing device 200, to a timing later than the second access timing for a communication device 110 whose first priority is lower than that of the other communication devices 110E. Therefore, in this process, the influence on the communication device 110 whose first priority is higher can be reduced, thereby making it possible to efficiently manage the communication devices 110 in the wireless communication system.

[0374] In the process according to the embodiment described above, the information processing device 200 sets the third access timing for a communication device 110 having a higher second priority than another communication device 110E to a timing later than the first access timing as the timing at which a plurality of communication devices 110 access the information processing device 200. Therefore, in this process, the influence on the communication device 110 having a higher second priority can be reduced, thereby making it possible to efficiently manage the communication devices 110 in the wireless communication system.

[0375] In the process according to the embodiment described above, the radio access method A is IMT, so that the process can efficiently manage the communication devices 110 that are equipped with the IMT radio access method of the wireless communication system.

[0376] In the process according to the embodiment described above, the wireless access method B is a wireless LAN. Therefore, in this process, it is possible to efficiently manage the communication devices 110 that are equipped with the wireless access method of the wireless LAN of the wireless communication system.

[0377] In the process according to the embodiment described above, the communication devices 110 are a distributed antenna system, and the process can efficiently manage the communication devices 110 in the distributed antenna system of the wireless communication system.

[0378] In the process according to the embodiment described above, the information processing system SYS1 includes a communication device 110 and an information processing device 200. The communication device 110 transmits a wireless access method to the information processing device 200 and receives interference protection processing for distributing an interference margin based on the wireless access method of the information processing device 200 and a first priority indicating the priority of the wireless access method. Therefore, in this process, the communication device 110 of the wireless communication system can be operated efficiently.

[0379] 3. Hardware Configuration The information processing device 200 and the like according to the above-described embodiment are realized by a computer 1000 having a configuration as shown in FIG. 24, for example. The information processing device 200 according to the embodiment will be described below as an example. FIG. 24 is a hardware configuration diagram showing an example of the computer 1000 that realizes the functions of the information processing device 200 according to the embodiment. The computer 1000 has a CPU 1100, a RAM 1200, a ROM (Read Only Memory) 1300, a HDD (Hard Disk Drive) 1400, a communication interface 1500, and an input / output interface 1600. The components of the computer 1000 are connected by a bus 1050.

[0380] The CPU 1100 operates and controls each component based on programs stored in the ROM 1300 or the HDD 1400. For example, the CPU 1100 loads the programs stored in the ROM 1300 or the HDD 1400 into the RAM 1200 and executes processing corresponding to the various programs.

[0381] The ROM 1300 stores boot programs such as a Basic Input Output System (BIOS) that is executed by the CPU 1100 when the computer 1000 is started, and programs that depend on the hardware of the computer 1000 .

[0382] HDD 1400 is a computer-readable recording medium that non-temporarily records programs executed by CPU 1100 and data used by such programs. Specifically, HDD 1400 is a recording medium that records an information processing program according to the present disclosure, which is an example of program data 1450.

[0383] The communication interface 1500 is an interface for connecting the computer 1000 to an external network 1550 (e.g., the Internet). For example, the CPU 1100 receives data from other devices and transmits data generated by the CPU 1100 to other devices via the communication interface 1500.

[0384] The input / output interface 1600 is an interface for connecting the input / output device 1650 and the computer 1000. For example, the CPU 1100 receives data from input devices such as a touch panel, keyboard, mouse, microphone, and camera via the input / output interface 1600. The CPU 1100 also transmits data to output devices such as a display, speaker, and printer via the input / output interface 1600. The input / output interface 1600 may also function as a media interface for reading programs and the like recorded on a predetermined recording medium. Examples of media include optical recording media such as DVDs (Digital Versatile Discs) and PDs (Phase Change Rewritable Discs), magneto-optical recording media such as MOs (Magneto-Optical Disks), tape media, magnetic recording media, and semiconductor memories.

[0385] For example, when the computer 1000 functions as the information processing device 200 according to the embodiment, the CPU 1100 of the computer 1000 executes an information processing program loaded onto the RAM 1200 to realize the functions of the control unit 230, etc. The information processing program according to the present disclosure and data in the storage unit 220, etc. are stored in the HDD 1400. The CPU 1100 reads and executes program data 1450 from the HDD 1400, but as another example, the CPU 1100 may obtain these programs from another device via an external network 1550.

[0386] The present technology may also be configured as follows. (1) An information processing system including an information processing device and a plurality of communication devices, wherein the information processing device includes: a first acquisition unit that acquires a radio access method for each of the plurality of communication devices; a second acquisition unit that acquires a first priority indicating a priority of the radio access method; and an execution unit that executes an interference protection process to distribute an interference margin to each of the plurality of communication devices based on the radio access method and the first priority. (2) The information processing system described in (1), wherein the first acquisition unit acquires, as the radio access method, at least one of a first radio access method executed by a first communication device that emits radio waves at all times and a second radio access method executed by a second communication device that emits radio waves at a predetermined time. (3) The information processing system described in (2), wherein the execution unit executes a first interference protection process to distribute the interference margin to the first communication device in consideration of cumulative interference. (4) The information processing system according to (2) or (3), wherein the execution unit executes a second interference protection process to allocate the interference margin to the second communication device in consideration of single-station interference. (5) The information processing system according to any one of (2) to (4), wherein the execution unit executes the interference protection process to allocate the interference margin to the first communication device with priority when the first priority is acquired, where the first radio access scheme has a higher priority than the second radio access scheme. (6) The information processing system according to any one of (2) to (5), wherein the execution unit executes the interference protection process to allocate the interference margin to the second communication device with priority when the first priority is acquired, where the second radio access scheme has a higher priority than the first radio access scheme. (7) The information processing system according to any one of (1) to (6), wherein the second acquisition unit acquires second priorities indicating frequency usage priorities of the plurality of communication devices, and the execution unit executes the interference protection process to determine a desired maximum transmission power as a transmission power for a communication device having a higher second priority than other communication devices.(8) The information processing system according to any one of (1) to (7), wherein the second acquisition unit acquires second priorities indicating frequency usage priorities of the plurality of communication devices, and the execution unit executes the interference protection process to determine, for a communication device having a second priority lower than other communication devices, a transmission power capable of protecting a communication device having a higher second priority than the other communication devices, with a desired maximum transmission power as an upper limit. (9) The information processing system according to any one of (1) to (8), wherein the information processing system further includes: an intermediate device that communicates with the information processing device on behalf of one or more communication devices among the plurality of communication devices. (10) The information processing system according to (2), wherein the information processing device is a first information processing device that manages both the first communication device and the second communication device, and a second information processing device that manages either the first communication device or the second communication device. (11) The information processing system according to any one of (1) to (10), wherein the execution unit sets, as the timing at which the plurality of communication devices access the information processing device, a first timing for a communication device having a higher first priority than other communication devices to a timing later than a second timing for a communication device having a lower first priority than other communication devices. (12) The information processing system according to (11), wherein the second acquisition unit acquires second priorities indicating frequency usage priorities of the plurality of communication devices, and the execution unit sets, as the timing at which the plurality of communication devices access the information processing device, a third timing for a communication device having a higher second priority than other communication devices to a timing later than the first timing. (13) The information processing system according to (2), wherein the first wireless access method is IMT (International Mobile Telecommunications). (14) The information processing system according to (2), wherein the second wireless access method is a wireless LAN (Local Area Network). (15) The information processing system according to any one of (1) to (14), wherein the plurality of communication devices are a distributed antenna system.(16) An information processing method executed by an information processing system, comprising: a first acquisition step of acquiring a radio access method of each of a plurality of communication devices, a second acquisition step of acquiring a first priority indicating a priority of the radio access method, and an execution step of executing an interference protection process to distribute an interference margin to each of the plurality of communication devices based on the radio access method and the first priority. (17) An information processing system including a communication device and an information processing device, wherein the communication device comprises: a transceiver unit that transmits the radio access method to the information processing device, and a control unit that accepts, by the information processing device, the interference protection process to distribute an interference margin based on the radio access method and the first priority indicating the priority of the radio access method. (18) An information processing method executed by an information processing system, comprising: a transceiver step of transmitting the radio access method to the information processing device, and a control step of accepting, by the information processing device, the interference protection process to distribute an interference margin based on the radio access method and the first priority indicating the priority of the radio access method.

[0387] REFERENCE SIGNS LIST 110 Communication device 111 Transmitting / receiving unit 112 Control unit 113 Communication unit 120 Terminal 130 Intermediate device 200 Information processing device 210 Communication unit 220 Storage unit 221 Radio access method information storage unit 222 First priority information storage unit 223 Second priority information storage unit 224 Interference margin information storage unit 230 Control unit 231 First acquisition unit 232 Second acquisition unit 233 Execution unit 300 Information recording device 400 Information notification device

Claims

1. An information processing system comprising an information processing device and a plurality of communication devices, wherein the information processing device comprises: a first acquisition unit that acquires a wireless access method for each of the plurality of communication devices; a second acquisition unit that acquires a first priority indicating a priority of the wireless access method; and an execution unit that executes interference protection processing to distribute an interference margin to each of the plurality of communication devices based on the wireless access method and the first priority.

2. The information processing system of claim 1, wherein the first acquisition unit acquires, as the wireless access method, at least one of a first wireless access method that is executed by a first communication device and emits radio waves at all times, and a second wireless access method that is executed by a second communication device and emits radio waves at predetermined times.

3. The information processing system according to claim 2, wherein the execution unit executes a first interference protection process for distributing the interference margin to the first communication device in consideration of cumulative interference.

4. The information processing system according to claim 2, wherein the execution unit executes a second interference protection process for distributing the interference margin to the second communication device in consideration of single station interference.

5. The information processing system according to claim 2, wherein the execution unit executes the interference protection process of preferentially distributing the interference margin to the first communication device when the first priority is acquired, the first priority being such that the first wireless access method has a higher priority than the second wireless access method.

6. The information processing system according to claim 2, wherein the execution unit executes the interference protection process of preferentially distributing the interference margin to the second communication device when the first priority is acquired, where the second wireless access method has a higher priority than the first wireless access method.

7. The information processing system of claim 1, wherein the second acquisition unit acquires a second priority indicating a frequency usage priority of the plurality of communication devices, and the execution unit executes the interference protection process to determine a desired maximum transmission power as the transmission power for a communication device whose second priority is higher than that of other communication devices.

8. The information processing system of claim 1, wherein the second acquisition unit acquires second priorities indicating frequency usage priorities of the plurality of communication devices, and the execution unit executes the interference protection process for a communication device having a second priority lower than that of the other communication devices, determining a transmission power capable of protecting the communication device having a second priority higher than that of the other communication devices, with a desired maximum transmission power as an upper limit.

9. The information processing system according to claim 1, further comprising an intermediate device that executes communication with the information processing device on behalf of one or more of the plurality of communication devices.

10. The information processing system according to claim 2, wherein the information processing device is a first information processing device that manages both the first communication device and the second communication device, and a second information processing device that manages either the first communication device or the second communication device.

11. The information processing system of claim 1, wherein the execution unit sets a first timing for a communication device whose first priority is higher than that of other communication devices as the timing for the plurality of communication devices to access the information processing device to a timing later than a second timing for a communication device whose first priority is lower than that of other communication devices.

12. The information processing system described in claim 11, wherein the second acquisition unit acquires second priorities indicating frequency usage priorities of the plurality of communication devices, and the execution unit sets a third timing for a communication device having a higher second priority than other communication devices as the timing for the plurality of communication devices to access the information processing device, to a timing later than the first timing.

13. The information processing system according to claim 2, wherein the first radio access method is IMT (International Mobile Telecommunications).

14. The information processing system according to claim 2, wherein the second wireless access method is a wireless LAN (Local Area Network).

15. The information processing system according to claim 1, wherein the plurality of communication devices are a distributed antenna system.

16. An information processing method executed by an information processing system, comprising: a first acquisition step of acquiring a radio access method for each of a plurality of communication devices; a second acquisition step of acquiring a first priority indicating the priority of the radio access method; and an execution step of executing interference protection processing to distribute an interference margin to each of the plurality of communication devices based on the radio access method and the first priority.

17. An information processing system comprising a communication device and an information processing device, wherein the communication device comprises: a transceiver unit that transmits a wireless access method to the information processing device; and a control unit that accepts interference protection processing by the information processing device, which distributes an interference margin based on the wireless access method and a first priority indicating the priority of the wireless access method.

18. An information processing method executed by an information processing system, comprising: a transmitting / receiving step of transmitting a wireless access method to an information processing device; and a control step of accepting, by the information processing device, an interference protection process that distributes an interference margin based on the wireless access method and a first priority indicating the priority of the wireless access method.

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