Information processing device, communication device, information processing method, and communication method

Abstract

We propose a mechanism that enables the application of frequency sharing technology to communication systems where it has not been previously applicable. [Solution] The information processing device of the present disclosure includes a control unit. The control unit acquires a first frequency range used by a first communication device and first area information relating to the first communication device. The control unit determines, based on the first area information and second area information relating to the second communication device, whether to permit the start or continuation of radio wave transmission by a second communication device whose second frequency range overlaps with the first frequency range.

Description

[Technical Field]

[0001] This disclosure relates to an information processing device, a communication device, an information processing method, and a communication method. [Background technology]

[0002] The problem of depleting radio wave resources (frequencies) available for wireless communication systems is becoming apparent. Therefore, as a means of securing the necessary radio wave resources, Dynamic Spectrum Access (DSA) technology is known, which utilizes temporal and spatial vacancies (white space) within frequency bands already allocated to specific wireless communication systems.

[0003] Furthermore, there is ongoing global discussion about opening up the 4400-5000MHz band (3GPP® band n79) to mobile communications. Of this band, the allocation of 4800-5000MHz to public or private networks varies by country and region. Additionally, the 4400-4800MHz band is designated as a research band for IMT (International Mobile Telecommunications) identification in WRC-27 Agenda Item 1.7. [Prior art documents] [Non-patent literature]

[0004] [Non-Patent Document 1] 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-H [Non-Patent Document 2] 47 CFR Part 96 Citizens Broadband Radio Service, https: / / www.ecfr.gov / current / title-47 / chapter-I / subchapter-D / part-96 [Non-Patent Document 3] 47 CFR Part 15 Subpart E Unlicensed National Information Infrastructure Devices, https: / / www.ecfr.gov / current / title-47 / chapter-I / subchapter-A / part-15 / subpart-E [Non-Patent Document 4] ETSI 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) [Non-Patent Document 5] IEEE Standard for Information technology-Telecommunications and information exchange between systems-Local and metropolitan area networks- Specific requirements- Part 19: Wireless Network Coexistence Methods [Non-Patent Document 6] “LSA Implementation”, CEPT, available at: https: / / www.cept.org / ecc / topics / lsa-implementation [Non-Patent Document 7] Report of the Next Generation Mobile Communication Systems Committee, Information and Communications Technology Subcommittee, Information and Communications Council, FY2021, Consultation No. 2038, "Technical Conditions for Next Generation Mobile Communication Systems," specifically "Technical Conditions for Mobile Communication Systems in the 2.3GHz Band," April 2021, Next Generation Mobile Communication Systems Committee, available at: https: / / www.soumu.go.jp / main_content / 000745696.pdf [Non-Patent Document 8] “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 [Non-Patent Document 9] “New TARDyS3 Portal and List of Protected Facilities in 3.5 GHz Band”, Federal Communications Commission, available at: https: / / www.fcc.gov / document / new-tardys3-portal-and-list-protected-facilities-35-ghz-band [Non-Patent Document 10] “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

Non-Patent Document 11

Non-Patent Document 12

Non-Patent Document 13

Non-Patent Document 14

Non-Patent Document 15

Non-Patent Document 16

Summary of the Invention

Problems to be Solved by the Invention

[0005] In some countries, the 4800-5000MHz frequency range is preferentially allocated to communications for public safety (PS) and public protection and disaster relief (PPDR).

[0006] In such countries and regions, if the bandwidth is to be newly allocated to mobile communications such as 5G, it may be required that the communication system for PS / PPDR (hereinafter also referred to as PS / PPDR) is not interfered with, that is, that the protection requirements of PS / PPDR are met.

[0007] Furthermore, PS / PPDR is expected to primarily be used for temporary (especially emergency) communications in specific locations and areas. Therefore, implementing "static" frequency sharing in the 4800-5000MHz range based on uniformly defined conditions across the entire country or region is not practical.

[0008] Thus, DSA (Dual Speak Alignment) is known as a means of allocating at least a portion of the frequency band allocated to the first communication system to the second communication system, that is, a means of sharing frequencies.

[0009] However, in the aforementioned DSA, the communication area of ​​the first communication system does not overlap with the communication area of ​​the second communication system. On the other hand, the communication area of ​​PS / PPDR may overlap with the communication area of ​​the mobile communication system. In this case, it is difficult to apply the conventional DSA as is.

[0010] Thus, there is a need for a mechanism that can achieve frequency sharing even in communication systems where conventional DSA is difficult to apply. In other words, there is a need for a mechanism that can apply frequency sharing technology to communication systems that have not been previously applicable.

[0011] Therefore, this disclosure proposes a mechanism that enables the application of frequency sharing technology to communication systems to which it has not been previously applicable.

[0012] It should be noted that the above-mentioned problems or objectives are merely one of several problems or objectives that can be solved or achieved by the multiple embodiments disclosed herein. [Means for solving the problem]

[0013] The information processing device of the present disclosure includes a control unit. The control unit acquires a first frequency range used by a first communication device and first area information relating to the first communication device. The control unit determines, based on the first area information and second area information relating to the second communication device, whether to permit the start or continuation of radio wave transmission by a second communication device whose second frequency range overlaps with the first frequency range. [Brief explanation of the drawing]

[0014] [Figure 1] This figure shows a specific example 1 of the basic principles of an information processing system according to the embodiment of this disclosure. [Figure 2] This figure shows a specific example 2 of the basic principles of an information processing system according to the embodiment of this disclosure. [Figure 3] This figure shows a specific example 2 of the basic principles of an information processing system according to the embodiment of this disclosure. [Figure 4] This figure shows a specific example 2 of the basic principles of an information processing system according to the embodiment of this disclosure. [Figure 5] This figure shows a specific example 3 of the basic principles of an information processing system according to the embodiment of this disclosure. [Figure 6] This figure shows a specific example 3 of the basic principles of an information processing system according to the embodiment of this disclosure. [Figure 7] This figure shows a specific example 4 of the basic principles of a communication system according to the embodiment of this disclosure. [Figure 8] This figure shows an example of the overall configuration of an information processing system according to the embodiment of this disclosure. [Figure 9] This is a block diagram showing an example configuration of an information processing device according to the embodiments of this disclosure. [Figure 10]This is a block diagram showing the configuration of a communication device according to an embodiment of the present disclosure. [Figure 11] This figure shows the configuration of a terminal according to an embodiment of this disclosure. [Figure 12] This figure shows an example of the division of a frequency-controlled object according to the embodiment of this disclosure. [Figure 13] This figure shows an example of a grid point according to an embodiment of the present disclosure. [Figure 14] This figure shows an example of mapping for a second communication device according to an embodiment of the present disclosure. [Figure 15] This figure shows an example of a target area according to this disclosure. [Figure 16] This is a diagram illustrating the Shared Access Licence system established in the UK. [Figure 17] This figure shows an example of the frequency range according to the embodiment of this disclosure. [Figure 18] This figure illustrates an example of a determination process according to the embodiments of this disclosure. [Figure 19] This figure illustrates another example of the determination process according to the embodiments of this disclosure. [Figure 20] This figure illustrates another example of the determination process according to the embodiments of this disclosure. [Figure 21] This figure shows an example of frequency resources used by a second communication device according to an embodiment of the present disclosure. [Figure 22] This figure shows another example of frequency resources used by a second communication device according to an embodiment of the present disclosure. [Figure 23] This is a sequence diagram showing an example of the communication processing flow according to the embodiment of this disclosure. [Figure 24] This figure shows an example configuration of a communication system according to another embodiment of this disclosure. [Figure 25] This figure shows an example of an operational area according to another embodiment of this disclosure. [Figure 26] This is a sequence diagram showing an example of the communication processing flow according to other embodiments of this disclosure. [Modes for carrying out the invention]

[0015] Embodiments of this disclosure will be described in detail below with reference to the attached drawings. In this specification and the drawings, components having substantially the same functional configuration are denoted by the same reference numerals, and redundant descriptions will be omitted.

[0016] Furthermore, in this specification and drawings, similar components of embodiments may be distinguished by adding at least one different alphabet and number after the same reference numeral. However, if there is no need to particularly distinguish each of the similar components, only the same reference numeral will be used.

[0017] The one or more embodiments (including examples, modifications, and applications) described below can each be implemented independently. On the other hand, at least some of the embodiments described below may be implemented in appropriate combination with at least some of the other embodiments. These embodiments may contain novel features that differ from each other. Therefore, these embodiments may contribute to solving different objectives or problems and may produce different effects.

[0018] <<1. Introduction>> <1-1. Overview of DSA> First, let's explain an example of a conventional DSA. For example, in the United States, CBRS (Citizens Broadband Radio Service) is adopted as a shared system for the 3550-3700 MHz band. Under CBRS, a Spectrum Access System (SAS) is required to protect shipborne radar.

[0019] According to the Wireless Innovation Forum standards WINNF-TS-0112 and WINNF-TS-1020, the following processes are performed as a shipboard radar protection method. - The area to be used for calculating cumulative received interference power is a Dynamic Protection Area (DPA) defined by dividing the coastal region of the United States. - For each DPA, the grants of base stations (CBSD, CBRS devices) emitting radio waves in the area near the DPA are classified into two groups, Keep List and Move List, based on the cumulative received interference power calculation results. -When a shipborne radar appears in a DPA, grants included in the Keep List are permitted to continue transmitting radio signals, while grants included in the Move List are required to stop transmitting radio signals or cancel their signals.

[0020] Similar to the PS / PPDR mentioned above, shipborne radar is a system that uses radio waves temporarily (especially during aircraft takeoffs and landings) and in specific locations / areas (e.g., a certain DPA). On the other hand, the location where radio waves are used is limited to the sea.

[0021] In the current CBRS system, CBSD is not used at sea. In other words, the service coverage of CBSD and the operating area of ​​shipborne radar do not overlap.

[0022] On the other hand, PS / PPDR may be used on land. That is, the service coverage of the wireless communication system and the operating area of ​​PS / PPDR may overlap.

[0023] Furthermore, under CBRS, CBSD is managed according to the principle also known as All Come All Served. On the other hand, in systems that share frequencies with PS / PPDR, frequencies may be licensed according to the principle also known as First Come First Served.

[0024] The shipboard radar protection scheme (also known as DPA protection) is designed based on the All Come All Served principle. Therefore, it is not appropriate to directly adapt this scheme as a protection method for other systems (e.g., PS / PPDR).

[0025] Therefore, methods are needed to protect the radio transmissions of systems whose service coverage and operating area may overlap, such as PS / PPDR systems.

[0026] <1-2. Overview of the proposed technology> The information processing device relating to the proposed technology of this disclosure comprises a control unit. The information processing device may correspond to, for example, a communication management device that manages dynamic frequency sharing.

[0027] The control unit acquires a first frequency range used by the first communication device and first area information relating to the first communication device. Here, the first communication device is, for example, a communication device included in the system to be protected (e.g., a base station or terminal device). The first area information may include, for example, information relating to the operating area of ​​the first communication device.

[0028] The control unit determines whether to permit the second communication device to start or continue transmitting radio waves. At least a portion of the second frequency range used by the second communication device overlaps with, for example, the first frequency range. That is, the second communication device is a communication device (e.g., a base station) included in a system that shares at least a portion of the frequencies of the protected system.

[0029] For example, the control unit determines whether to permit the second communication device to start or continue transmitting radio waves based on the first area information and the second area information relating to the second communication area. The second area information may include, for example, information regarding the coverage of the second communication device and / or areas in which the second communication device may cause interference (interference areas).

[0030] This allows the information processing device to, for example, compare the operating area of ​​the first communication device with the coverage and / or interference area of ​​the second communication device to determine whether to authorize the second communication device to start or continue transmitting radio waves. For example, the information processing device may authorize the second communication device to start or continue transmitting radio waves if its coverage does not overlap with the operating area of ​​the first communication device.

[0031] Thus, the proposed technology enables the application of frequency sharing technology to wireless communication systems where, for example, the operating area and service coverage of the protected system overlap.

[0032] <<2. Examples of Information Processing Systems>> <2-1. Basic Configuration Example of Information Processing System SYS1> The system model of the information processing system SYS1 according to the embodiment will be described using Figure 1. Figure 1 is a diagram showing a specific example 1 of the basic principles of the information processing system SYS1 according to the embodiment of this disclosure. As shown in Figure 1, the information processing system SYS1 consists of the following entities. - Information processing device 200 -Communication device 110 - Terminal 120 -Intermediate equipment 130 - Information recording device 300 -Information notification device 400

[0033] (Information processing device 200) The information processing device 200 is a device that has the function of determining, granting permission / authorization, instructing and / or managing the communication parameters of one or more communication devices 110 in accordance with one or more policies regarding frequency utilization.

[0034] Communication parameters may include, for example, one or more frequency channels in the frequency band intended for secondary use, and the maximum transmit power associated with each frequency channel. Other parameters related to wireless communication may also be included in the communication parameters.

[0035] Typically, software and applications capable of performing the above-mentioned functions are deployed and operated on the cloud; however, for the sake of explanation, these will also be treated as information processing devices 200.

[0036] The above policy may include, for example, a policy relating to the authorization of secondary use of bandwidth in a given frequency band. An example of an information processing device 200 implemented in accordance with the above policy is the following device. - TV White Space Database (TVWSDB) for managing TV white space (see, for example, Non-Patent Document 1) -GLDB (Geolocation database) - SAS (Spectrum Access System) manages the US 3550-3700MHz band CBRS (Citizens Broadband Radio Service) (see, for example, Non-Patent Document 2). - Automated Frequency Coordination (AFC) manages the 6GHz band in the United States and Canada (see, for example, Non-Patent Document 3).

[0037] Not limited to the examples above, any entity possessing a predetermined function may be considered an information processing device 200 in accordance with some policy relating to the authorization of secondary use of a predetermined frequency band. Examples of predetermined functions include the ability to determine, notify, authorize / grant, instruct, and / or manage the communication parameters of one or more communication devices 110.

[0038] The information processing device 200 may have functions for determining communication parameters, granting permission / authorization, issuing instructions, and / or managing the terminal 120.

[0039] The above policies may include, for example, a policy for coexistence between wireless systems in a given frequency band. Coexistence between wireless systems typically refers to a state in which compatibility is achieved when different / same type wireless systems with the same frequency usage priority (primary, secondary, etc.) share the same frequency and / or adjacent frequencies.

[0040] The following is an example of an information processing device 200 implemented in accordance with the above policy. -Spectrum Coordinator (SC) as defined in ETSI (European Telecommunications Standards Institute) EN 303 387 (see, for example, Non-Patent Document 4) - CM (Coexistence Manager) as defined in IEEE Std 802.19.1-2018 (see, for example, Non-Patent Document 5) - CxM (Coexistence Manager) as defined in CBRSA-TS-2001

[0041] Not limited to the examples above, an entity that has the function of determining, granting permission / authorization, instructing and / or managing the communication parameters of one or more communication devices 110 in accordance with some wireless system coexistence policy may be considered an information processing device 200. The information processing device 200 may also have the function of determining, granting permission / authorization, instructing and / or managing the communication parameters of a terminal 120.

[0042] When there are multiple information processing devices 200, and all of them adhere to at least one of the same policies regarding frequency utilization, it may be necessary for the decision-making results to be equivalent among the multiple information processing devices 200. Such information processing devices 200 may, for example, have a function to synchronize the information they hold and for each to execute an equivalent decision-making process.

[0043] When multiple information processing devices 200 exist and they have different policies regarding frequency utilization, depending on the policy, mutual coordination of decision-making results with other information processing devices 200E may be necessary. Such information processing devices 200 may, for example, be equipped with functions to perform mutual coordination, negotiation, etc., of decision-making results with other information processing devices 200E. Furthermore, for this purpose, information processing devices 200 may be equipped with functions to communicate with other information processing devices 200E.

[0044] When there are multiple information processing devices 200, and they have different policies regarding frequency utilization, depending on the policy, the other information processing device 200-2 may make a decision by utilizing the decision result of one information processing device 200-1. Information processing device 200-1 may have a function to share its decision result (and incidental information as necessary) with information processing device 200-2. Information processing device 200-2 may have a function to acquire the decision result (and incidental information as necessary) of information processing device 200-1.

[0045] (Regarding the target frequency band) The frequency utilization priority according to the embodiment will be explained using Figures 2 to 4. Figures 2 to 4 are diagrams showing a specific example 2 of the basic principle of the information processing system SYS1 according to the embodiment of this disclosure.

[0046] In the frequency band subject to decision-making by the information processing device 200, as mentioned above, under the DSA system, frequency usage priority may be pre-set and defined for operators using the above frequency band and for wireless communication systems equipped with at least one communication device 110.

[0047] Typically, as shown in Figures 2 to 4, the following three types of frequency utilization priorities may coexist. These priorities are also referred to as "tiers." Furthermore, below, these priorities may be referred to as the second priority. - Existing users (incumbent users) - Licensed secondary users (requiring a dedicated license) - Secondary users who do not require a dedicated license (license-exempt secondary users)

[0048] In Figure 2, for example, in a frequency band where an existing user (Tier 1) exists, another operator (Tier 2) with a dedicated license for secondary use carries out secondary use of the aforementioned frequency band. In this case, priority is given to the radio wave use of the existing user (Tier 1) in the aforementioned frequency band, and the operation of the existing user's wireless communication system is not disrupted.

[0049] For Tier 2 secondary users, the transmission of radio waves by the communication device 110 is permitted within the scope of the validity of the dedicated license and insofar as it does not cause critical interference to the wireless communication systems of existing users. If there are multiple operators conducting secondary use, interference coordination among secondary users may also be a condition for radio wave transmission.

[0050] As an example in Figure 2, one relevant example is LSA (Licensed Shared Access), which was considered in Europe as a 2.3GHz band shared framework (see, for example, Non-Patent Document 6). Another example in Figure 2 is dynamic frequency sharing, which was introduced in Japan for 2.3GHz band mobile communication systems (see, for example, Non-Patent Document 7).

[0051] In Figure 3, for example, another operator (Tier 2) uses a frequency band where an existing user (Tier 1) is present, without a dedicated license. In this case, priority is given to the use of radio waves by the existing user (Tier 1) in the aforementioned frequency band, and the operation of the existing user's wireless communication system is not disrupted.

[0052] For Tier 2 secondary users, the transmission of radio waves by the communication device 110 is permitted as long as it does not cause critical interference to the wireless communication systems of existing users. In the above example, even if there are multiple businesses that conduct secondary use, interference coordination among secondary users is not guaranteed. Furthermore, interference from others must be tolerated in principle.

[0053] The example in Figure 3 applies to TV white space and the 6GHz band where AFC is introduced (see, for example, Non-Patent Document 3).

[0054] In Figure 4, for example, in a frequency band where existing users (Tier 1) exist, operators with dedicated licenses for secondary use (Tier 2) and operators without dedicated licenses (Tier 3) coexist and carry out secondary use of the same band. In other words, Figure 4 shows a hybrid example of Figures 2 and 3.

[0055] In this case, in the above frequency band, priority is given to the use of radio waves by existing users who are Tier 1, and the operation of existing users' wireless systems is not hindered. Secondary users who are Tier 2 are permitted to emit radio waves by communication equipment 110 within the range where their dedicated license is valid and within the range where they do not cause fatal interference to existing users' wireless systems. If there are multiple operators within Tier 2, interference coordination among secondary users may also be a condition for radio wave emission.

[0056] Tier 2 operators have priority over Tier 3 operators in radio wave usage, and Tier 2 wireless communication systems are not interfered with by Tier 3. Secondary users of Tier 3 are permitted to emit radio waves using communication equipment 110, provided that it does not cause critical interference to Tier 1 and Tier 2 wireless communication systems. Even if there are multiple operators within Tier 3, interference coordination between Tier 3 operators is not necessarily guaranteed. Furthermore, Tier 3 operators must generally tolerate interference from others.

[0057] The example in Figure 4 corresponds to the US 3550-3700 MHz band CBRS (see, for example, Non-Patent Document 1).

[0058] The information processing device 200 typically makes decisions considering the configuration of the above-mentioned tiers, which are pre-configured and defined by the system. However, the system is not limited to the above-described configuration. For example, there may be four or more tiers. Also, for example, the tiers may be further subdivided based on different criteria, such as the aforementioned Tier 2 and Tier 3. Furthermore, for example, the tiers do not necessarily have to be pre-configured and defined, but may be dynamically configured by the information processing device 200.

[0059] Hereafter, unless otherwise specified, the terms "frequency band" and "target frequency band" refer to the frequency band that is the subject of decision-making by the information processing device 200.

[0060] (Communication device 110) The communication device 110 is a wireless device that has the function of providing wireless communication services to the terminal 120 and other communication devices 110E. Examples of communication devices 110 include wireless base stations (including Base Station, Node B, eNB, gNB, and their variations) and wireless access points.

[0061] Typical examples of wireless interfaces used for wireless communication services with terminal 120 and other communication devices 110E may include 4G / 5G as defined by 3GPP (registered trademark). Alternatively, typical examples of such wireless interfaces may include standard wireless interfaces resulting from their advancement, and standard wireless interfaces based on the wireless LAN specifications defined by IEEE 802.11WG. Typical examples of such wireless interfaces may include not only any other standard wireless interfaces, but also proprietary wireless interfaces.

[0062] The communication device 110 according to this embodiment has at least the following functions. - A function that provides the information processing device 200 with information about the communication device 110 that the information processing device 200 needs to make decisions in accordance with one or more policies regarding frequency utilization. - Function to acquire the results of decision-making by the information processing device 200. - A function to control its own radio wave emission and to continuously emit radio waves based on the decision-making results from the acquired information processing device 200. - A function that uses radio waves emitted by the above function to perform wireless communication with terminal 120.

[0063] In this context, "control of radio wave transmission" may include any process that affects radio wave emission, such as initiating transmission, stopping transmission, temporarily suspending transmission, setting / changing transmission power, setting / changing frequency channels, and setting / changing other radio parameters.

[0064] The communication device 110 according to this embodiment may include a function for acquiring information about the current location for the purpose of the above-described functions. One example of a function for acquiring information about the current location is one of the following: - Positioning function utilizing GNSS (Global Navigation Satellite Service), etc. (also known as automated geolocation capability) - External import function

[0065] The communication device 110 may also be equipped with the necessary functions to form a single cell by combining it with multiple other communication devices 110E to constitute a Distributed Antenna System (DAS). Furthermore, antennas and RRHs (Remote Radio Heads) installed for the purpose of configuring a DAS may also be treated as communication devices 110. Regarding the "current position" mentioned above, regardless of whether a DAS is configured or not, it is desirable to treat the current position of the antenna / RRH used by the communication device 110, including in the case of an external antenna, as the position information of the communication device 110.

[0066] The communication device 110 may further include beamforming or active antenna system functions and have the function of constructing cells or service areas for each beam that is formed.

[0067] In this embodiment, it is assumed that there are two different types of communication devices 110. In this embodiment, a communication device 110 that can access the information processing device 200 without using a wireless line that uses the target frequency band may be referred to as communication device 110a.

[0068] Specifically, for example, a communication device 110 capable of wired internet connection can be considered a communication device 110a.

[0069] Furthermore, even if a device does not have a wired internet connection function, it may be considered a communication device 110a if it has established a wireless connection using a frequency band different from the target frequency band with another communication device 110E.

[0070] Furthermore, devices such as smartphones and drones equipped with side-link communication functions or tethering functions that enable wireless connectivity between devices, where the backhaul link communicates with the base station in a frequency band different from the target frequency band, and the access link requires the target frequency band, may be considered as communication devices 110a rather than terminals 120.

[0071] In this embodiment, a communication device 110 that cannot access the information processing device 200 unless it uses a wireless line that uses the target frequency band may be referred to as a communication device 110b. For example, a wireless relay device that needs to construct a backhaul link using the target frequency band can be considered a communication device 110b.

[0072] Furthermore, a device equipped with a wireless network provision function, such as tethering, that uses frequencies requiring authorization from the information processing device 200 for both the backhaul link and the access link may also be treated as a communication device 110b. Examples of such devices include smartphones.

[0073] For example, the CPE-CBSD in the US CBRS corresponds to the communication device 110b according to this embodiment. Backhaul link communication called a Handshake procedure is performed for the purpose of accessing the SAS equivalent to the information processing device 200 via backhaul link communication performed with the BTS-CBSD equivalent to the communication device 110a (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.

[0074] The communication device 110 does not necessarily have to be fixedly installed. For example, the communication device 110 may be installed on something that moves, such as a car. Also, the communication device 110 does not necessarily have to be on the ground. For example, the communication device 110 may be equipped on an object that exists in the air or in space, such as an aircraft, drone, helicopter, HAPS (High Altitude Platform Station), balloon, or satellite. Furthermore, the communication device 110 may be equipped on an object that exists at sea or in the sea, such as a ship or submarine. Typically, such a mobile communication device 110 corresponds to communication device 110b, and secures an access path to the information processing device 200 by performing wireless communication with communication device 110a. Naturally, when performing wireless communication with communication device 110a in a frequency band outside the management range of the information processing device 200, even a mobile communication device 110 can be treated as communication device 110a.

[0075] In the embodiments, unless otherwise specified, the term "communication device 110" encompasses the meanings of both communication device 110a and communication device 110b, and may be interpreted as either one.

[0076] The communication device 110 may be used, operated, or managed by various businesses. For example, the following businesses may be involved with the communication device 110: - Mobile Network Operator (MNO) - Mobile Virtual Network Operator (MVNO) - Mobile Network Enabler (MNE) - Mobile Virtual Network Enabler (MVNE) -Shared equipment operator - Neutral Host Network (NHN) operator - Broadcasting companies - Enterprise - Educational institutions (school corporations, local government boards of education, etc.) - Real estate (buildings, apartments, etc.) manager -Individual

[0077] Furthermore, the businesses involved with the communication device 110 are not limited to those in the above example. Also, the communication device 110a may be shared equipment used by multiple businesses. Additionally, the businesses responsible for the installation, use, operation, and management of the equipment may differ.

[0078] (Intermediate device 130) The intermediate device 130 is an entity that has the function of performing communication with the information processing device 200 on behalf of one or more communication devices 110. More specifically, the intermediate device 130 has the function of providing the information processing device 200 with information about the communication devices 110 that the information processing device 200 needs to make decisions in accordance with one or more policies regarding frequency utilization. Furthermore, the intermediate device 130 has the function of acquiring the results of decisions made by the information processing device 200. The intermediate device 130 has the function of notifying the communication devices 110, directly or indirectly, of the acquired results of decisions made by the information processing device 200.

[0079] Examples of intermediate devices 130 include a Domain Proxy (DP) that performs access proxying to the SAS in the US CBRS, and a Proxy that performs access proxying to the US 6GHz band AFC. Typically, software and applications capable of performing processing based on the above functions are provided, but for the sake of explanation, these will also be treated as intermediate devices 130. Furthermore, in relation to interaction with the information processing device 200, descriptions using the term "communication device 110" are also applicable to intermediate devices 130 unless otherwise specified.

[0080] (Terminal 120) 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 terminal 120. Terminal 120 is also referred to as UE (User Equipment), User Terminal, User Station, Mobile Terminal, or Mobile Station.

[0081] Furthermore, any device equipped with wireless communication capabilities may qualify as terminal 120. For example, a professional camera with wireless communication capabilities may qualify as terminal 120, even if wireless communication is not its primary use. Additionally, a field pickup unit (FPU) used for broadcasting, such as for sports coverage, which transmits images for television broadcasting from outside the broadcasting station (on-site) to the broadcasting station, may also be equipped with the necessary functions to operate as terminal 120.

[0082] Furthermore, terminal 120 does not necessarily have to be used by a person. For example, devices such as factory machinery or sensors installed in a building, like MTC (Machine Type Communication), may be connected to a network and function as terminal 120.

[0083] Furthermore, equipment referred to as Customer Premises Equipment (CPE), which is provided to ensure internet connectivity, may be equipped with the functions necessary for operation as terminal 120.

[0084] Furthermore, the terminal 120 may be equipped with a relay communication function, as exemplified by D2D (Device-to-Device) and V2X (Vehicle-to-Everything).

[0085] Furthermore, like the communication device 110, the terminal 120 does not need to be fixedly installed or located on the ground. For example, an object located in the air or space, such as an aircraft, drone, helicopter, or satellite, may be equipped with the functions necessary for operation as the terminal 120. Alternatively, an object located on or under the sea, such as a ship or submarine, may be equipped with the functions necessary for operation as the terminal 120.

[0086] In this embodiment, unless otherwise specified, terminal 120 corresponds to the entity to which a wireless link using the target frequency band terminates. However, depending on the functions of terminal 120 and the applicable network topology, terminal 120 may operate in the same manner as communication device 110. In other words, depending on the network topology, a device that could be a communication device 110, such as a wireless access point, may correspond to terminal 120, and a device that could be a terminal 120, such as a smartphone, may correspond to communication device 110.

[0087] (Information recording device 300) The information recording device 300 is an entity on which one or more types of information used in decision-making performed by the information processing device 200 are recorded. Depending on the type of information, the information processing device 200 may need to have the ability to acquire information from multiple different information recording devices 300.

[0088] The information recording device 300 can be implemented, for example, as a database that records license information, technical information and / or operational information of radio equipment associated with the license, concerning primary system operators in the target frequency band.

[0089] Typical examples of such information recording devices 300 include the Universal Licensing System (ULS) operated by the U.S. Federal Communications Commission (FCC).

[0090] Examples of information necessary to protect the primary system include, for example, the following: - Location information of the primary system receiver - Information regarding 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.) - Other communication parameters - Out-of-band emission limit (OOBE) - Adjacent Channel Leakage Ratio (ACLR) - Adjacent Channel Selectivity - Fading margin, Protection Ratio (PR)

[0091] In countries and regions where fixed values, acquisition methods, and derivation methods for these are stipulated by law or other regulations for the purpose of protecting primary systems, it is desirable to follow the provisions of those regulations.

[0092] The information recording device 300 can be implemented, for example, as a database for recording information about communication devices 110 that have obtained equipment certification for radio wave emission in the target frequency band. If terminal 120 is also subject to decision-making by the information processing device 200, information about terminal 120 that has similarly obtained equipment certification may also be recorded.

[0093] Another well-known example of such an information recording device is the Equipment Authorization System (EAS) managed by the FCC's Office of Engineering and Technology (OET).

[0094] Generally, the following information may be recorded as information related to device authentication, but is not necessarily limited to these. - Equipment certification identifier (e.g., FCC ID, technical standards conformity certification number) - Equipment model name - Device class name - Radio wave type (emission designator) - Operating frequency range -Transmit power

[0095] The information recording device 300 is, for example, a database that records radio environment maps (REMs). A REM is a dataset containing information about the radio environment in any given area. Typically, the database is constructed using frequency sensing, measurement, etc. The information processing device 200 may acquire the REMs recorded in the information recording device 300 and use them for decision-making.

[0096] The information recording device 300 is, for example, a database for recording digital elevation models (DEMs). This data can be used when using models that require information such as elevation and topography in propagation loss estimation.

[0097] For example, various data sets, 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 according to the applicable country or region and used as a DEM (Digital Elevation Model).

[0098] The information recording device 300 is, for example, a database for recording 3D building data. 3D building data can be used in propagation loss estimation, for example, to determine line-of-sight (LOS / NLOS) conditions.

[0099] Naturally, even if the data is not included in the above examples, a database that records data usable for decision-making by the information processing device 200 may be treated as the information recording device 300. Furthermore, the information processing device 200 may be equipped with a function to retrieve information from the above database.

[0100] (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, according to the state of that variation.

[0101] The information notification device 400 can be implemented, for example, as a radio wave sensing system that detects radio waves from a primary system that uses radio waves aperiodically / non-stationary. A typical example of this is the Environmental Sensing Capability (ESC) used in the US CBRS. The ESC detects radio waves from the shipborne radar, which is the primary system, and notifies the SAS of the detection information. The SAS, which is an information processing device, uses this detection information to manage and control the radio wave emission of the CBSD (CBRS Device), which is a communication device.

[0102] The information notification device 400 can be implemented, for example, as a portal system for managing activity information of the primary system. As a specific example, in the U.S. CBRS (Citizens Broadband Radio Service), the information notification device 400 may include a calendar-type system called the Informing Incumbent Portal or TARDyS3 (the Telecommunications Advanced Research and Dynamic Spectrum Sharing System) (see, for example, Non-Patent Document 9).

[0103] The information notification device 400 activates a protection area called DPA (Dynamic Protection Area) based on the acquired activity information to protect the primary system. A similar system called IIC (Informing Incumbent Capability) (see, for example, Non-Patent Document 10) can also achieve protection of the primary system in a similar manner.

[0104] (Additional information) The interfaces between the entities constituting the system model described above may be wired or wireless. Furthermore, these interfaces may be a combination of wired and wireless connections. For example, the interface between the information processing device 200 and the communication device 110 may utilize not only a wired line but also a wireless interface using a frequency band other than the target frequency band.

[0105] Examples of wireless interfaces that use frequency bands other than the target frequency band include wireless communication lines provided by mobile communication carriers via licensed bands. Additionally, there are Wi-Fi® communications that utilize license-exempt bands such as the 2.4GHz and 5GHz bands.

[0106] The entities constituting the above system model, with the exception of, for example, the communication device 110, the intermediate device 130, and the terminal 120, can all take the form of either physical entities, logical entities (functional blocks), or both.

[0107] For example, the information processing device 200 may have all the functions of the information notification device 400 and the information recording device 300. Alternatively, 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.

[0108] Furthermore, for example, information notification devices 400 and information recording devices 300 may exist separately from those that exist as logical entities (functional blocks). The above system model may be modified and applied to all conceivable combinations, not limited to the examples above.

[0109] <2-2. Terminology> In the embodiments, the term "transmit power" may be replaced with the following terms unless otherwise specified. - Power spectral density (PSD) -Equivalent Isotropic Radiated Power (EIRP) - Total Radiated Power (TRP) -Conducted power

[0110] Furthermore, and this is only true, the term "transmit power" may be used interchangeably with any other term that represents transmit power.

[0111] When applied to embodiments other than frequency-sharing environments, the term "frequency" may be replaced by another term common to the application, such as those shown below. -resource - Resource Block - Resource element - Resource pool - Resource Unit -channel - Subchannel - Component carrier - Career - Subcarrier -BWP (Bandwidth Part)

[0112] Furthermore, the term "frequency" is expected to be replaced by another term with an equivalent or similar meaning.

[0113] Furthermore, as mentioned above, the embodiments are not limited to environments with shared frequencies. Generally, in examples of shared frequencies or secondary frequency utilization, the existing system utilizing the target frequency band is referred to as the primary system, and the secondary user is referred to as the secondary system.

[0114] When applying embodiments to environments other than frequency sharing environments, other terms may be substituted. For example, in a heterogeneous network (HetNet), a macrocell base station may be considered the primary system, and small cell base stations or relay stations may be considered secondary systems.

[0115] Alternatively, the base station may be used as the primary system, and the Relay UE (User Equipment) or Vehicle UE that implement D2D or V2X within its coverage may be used as the secondary system. The base station is not limited to a fixed type, but may also be portable or mobile. In such cases, for example, the information processing device 200 and information processing method according to the embodiment may be provided in the core network, base station, relay station, Relay UE, etc.

[0116] <2-3. Basic Processing of the Information Processing System SYS1> An example of the basic processing of the information processing system SYS1 according to this embodiment will be explained using Figures 5 and 6, tables, and mathematical formulas. It should be noted that the basic processing described here will be explained assuming that it is mainly executed by the communication device 110a, as described in sections <2-3-1. Registration / Initialization Procedure> to <2-3-5. Supplementary Information on Various Procedures> later.

[0117] <2-3-1. Registration / Initialization Procedure> The registration procedure is the process of registering information about the communication device 110 that intends to use the frequency band with the information processing device 200. The registration procedure is sometimes also called the initialization procedure.

[0118] Typically, the registration procedure is executed when a communication device 110 intending to utilize a frequency band notifies the information processing device 200 of a registration request that includes its own device parameters.

[0119] In addition, the intermediate device 130 may perform the registration procedure by representing one or more communication devices 110 that intend to use the frequency band and notifying the information processing device 200 of a registration request that includes the device parameters of the one or more communication devices 110.

[0120] (Details of required parameters) Device parameters refer to information such as the following: - Information concerning the user of the communication device 110 (hereinafter also referred to as "user information") - Unique information of the communication device 110 (hereinafter also referred to as "unique information") - Information regarding the location of the communication device 110 (hereinafter also referred to as "location information") - Information regarding the antenna of the communication device 110 (hereinafter also referred to as "antenna information") - Information regarding the wireless interface of the communication device 110 (hereinafter also referred to as "wireless interface information") - Legal information concerning communication device 110 (hereinafter also referred to as "legal information") - Information regarding the installer of the communication device 110 (hereinafter also referred to as "installer information") - Information regarding the group to which the communication device 110 belongs (hereinafter also referred to as "group information")

[0121] Device parameters are not limited to the information described above; other information may also be treated as device parameters. Furthermore, device parameters do not need to be sent in a single message; they may be sent in multiple messages. That is, multiple registration requests may be sent for a single registration procedure. In this way, a single procedure or a single process within a procedure may be executed in multiple parts. This also applies to the procedures described below.

[0122] User information refers to information relating to the user of the communication device 110. For example, user information may include user ID, account name, user name, user contact information, call sign, etc. The user ID and account name may be independently generated by the user of the communication device 110, or they may be issued in advance by the information processing device 200. It is preferable to use a call sign issued by the NRA.

[0123] User information may be used, for example, for interference resolution. As a specific example, the information processing device 200 may, in the frequency usage notification procedure described later in <2-3-5. Supplementary Information on Various Procedures>, perform a usage suspension decision for a frequency currently in use by the communication device 110 and issue an instruction based on that suspension decision. In this way, even if the information processing device 200 issues an instruction based on a usage suspension decision, a frequency usage notification request for the above frequency may still be notified.

[0124] In that case, the information processing device 200 may suspect a malfunction in the communication device 110 and contact the user's contact information included in the user information to request confirmation of the communication device 110's behavior.

[0125] In addition to the above example, if it is determined that the communication device 110 is performing an operation contrary to the communication control performed by the information processing device 200, the information processing device 200 may contact the user using user information.

[0126] Unique information includes information that can identify the communication device 110, product information of the communication device 110, and information regarding the hardware or software of the communication device 110.

[0127] Information that can identify the communication device 110 may include, for example, the manufacturing number (serial number) of the communication device 110, the ID of the communication device 110, etc. The ID of the communication device 110 may be assigned by the user of the communication device 110, for example.

[0128] Product information for the communication device 110 may include, for example, a certification ID, product model number, and manufacturer information. A certification ID is an ID issued by a certification body in a country or region, such as an FCC ID in the United States, a CE number in Europe, or a technical standards conformity certificate in Japan. IDs issued by industry associations, etc., based on their own certification programs may also be considered certification IDs.

[0129] The unique information described above can be used, for example, in an allowlist or denylist (or disallowlist). For example, suppose any information regarding the operational communication device 110 is included in the denylist. In this case, the information processing device 200 can issue an instruction to the operational communication device 110 to stop using the frequency in the frequency usage notification procedure described in <2-3-5. Supplementary Information on Various Procedures> below.

[0130] Furthermore, the information processing device 200 can behave in such a way that it does not lift the suspension measure until the communication device 110 that is currently in operation is removed from the denial list. Also, for example, the information processing device 200 can refuse to register the communication device 110 that is included in the denial list.

[0131] Furthermore, the information processing device 200 can perform operations such as not considering the communication device 110 corresponding to the information included in the denial list in the interference calculation according to the embodiment. Alternatively, the information processing device 200 can perform operations such as considering only the communication device 110 corresponding to the information included in the permission list in the interference calculation.

[0132] In this embodiment, the authentication ID may be treated as information regarding the transmitted power. For example, information regarding FCC-certified equipment can be obtained using an API (Application Programming Interface) (see, for example, Non-Patent Document 11) from an EAS (Equipment Authorization System) database, which can be considered a type of information recording device.

[0133] The record includes the RF transmit power output associated with the authentication. Each record in the EAS specifies that if the field “grantNoteId” is “EP”, equivalent isotropically radiated power (EIRP) is recorded; otherwise, conducted power is recorded. Therefore, if transmit power information associated with an authentication ID exists, not just the FCC ID, the authentication ID may be treated as equivalent to that information.

[0134] Information regarding the hardware of the communication device 110 may include, for example, transmit power class information. For example, in the US CBRS, two types of transmit power class information are defined: Category A and Category B. Furthermore, information regarding the hardware of the communication device 110 that conforms to the above definition may include information indicating which of these two classes it belongs to.

[0135] Furthermore, several eNodeB and gNodeB classes are defined in TS36.104 and TS38.104 of the 3GPP (3rd Generation Partnership Project). These definitions can also be used as information regarding the hardware of the communication device 110.

[0136] The transmit power class information can be used, for example, in interference calculations. Interference calculations can be performed using the maximum transmit power specified for each class as the transmit power of the communication device 110.

[0137] Information regarding the software of the communication device 110 may include, for example, version information and build number of the executable program that describes the processing necessary for interaction with the information processing device 200. Furthermore, information regarding the software of the communication device 110 may also include version information and build number of the software necessary for the communication device 110 to function as such.

[0138] Location information is typically information that can identify the location of the communication device 110. For example, location information is coordinate information obtained by a positioning function. Typical positioning functions include GPS (Global Positioning System), Beidou, QZSS (Quasi-Zenith Satellite System), Galileo, and A-GPS (Assisted Global Positioning System).

[0139] Typically, location information may include latitude, longitude, ground / sea level, altitude, and positioning error. Alternatively, for example, the location information may be location information registered in an information management device managed by the NRA (National Regulatory Authority) or its authorized agency. Alternatively, for example, the location information may be X, Y, and Z axis coordinates with a specific geographic location as the origin. In addition, an identifier indicating whether the communication device 110 is located outdoors or indoors may be attached to the location information along with such coordinate information.

[0140] Furthermore, location uncertainty information may be included in the location information. For example, location uncertainty information may be provided for both the horizontal and vertical planes, or either one. Location uncertainty information may be used, for example, as a correction value when calculating the distance to any point. Also, for example, location uncertainty information may be used as information about the area where the communication device 110 may be located. In this case, the location uncertainty information is used in processes such as identifying usable frequency information within the area indicated by the location uncertainty information.

[0141] Furthermore, the location information may also be information indicating the area where the communication device 110 is located. For example, information indicating an area defined by the government, such as a postal code or address, may be used. Alternatively, for example, the area may be indicated by a set of three or more geographic coordinates. This information indicating the area may be provided together with the coordinate information.

[0142] Furthermore, if the communication device 110 is located indoors, the location information may also include information indicating the floor of the building where the communication device 110 is located. For example, the location information may include identifiers such as the floor number, ground level, or basement level. In addition, the location information may include information indicating further enclosed spaces within the building, such as the room number or room name.

[0143] Furthermore, if the antenna used by the communication device 110 is external, it is desirable to use the location information of the external antenna. In other words, it is desirable to treat the external antenna as the communication device 110.

[0144] The positioning function is typically preferably provided by the communication device 110. However, the performance of the positioning function may 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 always be possible to obtain position information that meets the required accuracy.

[0145] 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 with the positioning function may be an existing device that is available, or it may be installed by the installer of the communication device 110. In such a case, it is desirable that the location information measured by the installer of the communication device 110 be written to the communication device 110.

[0146] Antenna information typically refers to information indicating the performance and configuration of the antenna provided by the communication device 110. Typically, this information may include, for example, antenna installation height, tilt angle (downtilt), horizontal orientation (azimuth), aiming (boresight), antenna peak gain, and antenna model.

[0147] Furthermore, antenna information may also include information about the beams that can be formed. For example, this may include information such as beam width, beam pattern, and analog or digital beamforming capabilities.

[0148] Furthermore, antenna information may also include information about the performance and configuration of MIMO (Multiple Input Multiple Output) communication. For example, it may include information such as the number of antenna elements and the maximum number of spatial streams (or MIMO layers).

[0149] Furthermore, information such as the codebook used and weight matrix information may also be included. Weight matrix information includes unitary matrices, ZF (Zero-Forcing) matrices, and MMSE (Minimum Mean Square Error) matrices. These can be obtained by SVD (Singular Value Decomposition), EVD (Eigen Value Decomposition), BD (Block Diagonalization), etc.

[0150] Furthermore, if the communication device 110 is equipped with functions such as MLD (Maximum Likelihood Detection) that require nonlinear calculations, information indicating the equipped functions may be included in the antenna information.

[0151] Furthermore, antenna information may include ZoD (Zenith of Direction, Departure). ZoD is a type of radio wave arrival angle. Note that ZoD may not be notified by the communication device 110, but rather estimated and notified by another communication device 110E from radio waves emitted from the antenna of the communication device 110. In this case, the communication device 110 may be a device operating as a base station or access point, a device performing D2D communication, or a moving relay base station, etc.

[0152] The Zone of Direction (ZOD) can be estimated using radio wave direction estimation techniques such as MUSIC (Multiple Signal Classification) or ESPRIT (Estimation of Signal Propagation via Rotation Invariance Techniques). Furthermore, the ZOD can be used as measurement information by the information processing device 200.

[0153] Wireless interface information typically refers to information indicating the wireless interface technology provided by the communication device 110. For example, identifier information indicating technologies used in GSM®, CDMA2000, UMTS, E-UTRA, E-UTRA NB-IoT, 5G NR, 5G NR NB-IoT, or further next-generation cellular systems may be included as wireless interface information.

[0154] Furthermore, the wireless interface information may also include identifiers indicating derivative technologies compliant with LTE (Long Term Evolution) / 5G, such as MulteFire, LTE-U (Long Term Evolution-Unlicensed), and NR-U (NR-Unlicensed).

[0155] Furthermore, the wireless interface information may also include identifiers indicating standard technologies such as MAN (Metropolitan Area Network) like WiMAX and WiMAX2+, and IEEE 802.11-based wireless LANs. The wireless interface information may also include identifiers indicating XGP (Extended Global Platform) and sXGP (shared XGP). It may also include identifiers for communication technologies intended for LPWA (Local Power, Wide Area).

[0156] Furthermore, identifier information indicating proprietary wireless technologies may also be included. Additionally, the wireless interface information may include the version or release number of the technical specification defining these technologies.

[0157] Furthermore, the wireless interface information may also include frequency band information supported by the communication device 110. For example, frequency band information may be represented by an upper frequency limit, lower frequency limit, center frequency, bandwidth, 3GPP Operating Band number, or at least two combinations thereof. In addition, one or more frequency band information entries may be included in the wireless interface information.

[0158] The wireless interface information may also include information indicating the capabilities of bandwidth expansion technologies such as carrier aggregation (CA) and channel bonding, as part of the frequency band information supported by the communication device 110. For example, information on combinable bandwidths may be included in the wireless interface information.

[0159] Furthermore, regarding carrier aggregation, information about the bandwidth to be used as the primary component carrier (PCC) and secondary component carrier (SCC) may also be included in the wireless interface information. In addition, the number of component carriers that can be aggregated simultaneously (CC count) may also be included in the wireless interface information.

[0160] The wireless interface information may also include information indicating the combination of frequency bands supported by Dual Connectivity and Multi Connectivity, as part of the frequency band information supported by the communication device 110. In addition, information on other communication devices 110E that cooperate to provide Dual Connectivity and Multi Connectivity may also be provided to the information processing device 200. In subsequent procedures, the information processing device 200 may take into account other communication devices 110E with which it has a cooperative relationship, etc., and perform a decision on communication control according to the embodiment.

[0161] Furthermore, the wireless interface information may include information indicating frequency utilization priority and tier, such as PAL and GAA, as frequency band information supported by the communication device 110.

[0162] Furthermore, the wireless interface information may also include modulation scheme information supported by the communication device 110. For example, typical examples of primary modulation schemes may include information indicating primary modulation schemes such as FSK (Frequency Shift Keying), n-value PSK (Phase Shift Keying, where n is a power of 2 such as 2, 4, or 8), and n-value QAM (Quadrature Amplitude Modulation, where n is a power of 4 such as 4, 16, 64, 256, or 1024). In addition, 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) may be included in the wireless interface information.

[0163] Furthermore, wireless interface information may also include information about error correction codes. For example, capabilities and applicable coding rates for Turbo codes, LDPC (Low Density Parity Check) codes, Polar codes, and loss correction codes may be included in the wireless interface information.

[0164] Modulation scheme information and error correction code information can also be represented in another form, using an MCS (Modulation and Coding Scheme) index.

[0165] Furthermore, the wireless interface information may also include information indicating functions specific to each wireless technology specification supported by the communication device 110. For example, a typical example is the TM (Transmission Mode) information defined in LTE.

[0166] In addition, for functions that have two or more modes, these may be included in the wireless interface information, similar to TM information. Furthermore, even if two or more modes do not exist in the technical specifications, if the communication device 110 supports functions that are not required by the specifications, information indicating the supported functions may also be included in the wireless interface information.

[0167] Furthermore, the wireless interface information may also include information on the radio access technology (RAT) supported by the communication device 110. For example, the wireless interface information may include information indicating TDMA (Time Division Multiple Access), FDMA (Frequency Division Multiple Access), OFDMA (Orthogonal Frequency Division Multiple Access), PDMA (Power Division Multiple Access), CDMA (Code Division Multiple Access), SCMA (Sparse Code Multiple Access), IDMA (Interleave Division Multiple Access), SDMA (Spatial Division Multiple Access), CSMA / CA (Carrier Sense Multiple Access / Collision Avoidance), CSMA / CD (Carrier Sense Multiple Access / Collision Detection), etc.

[0168] TDMA, FDMA, and OFDMA are classified as Orthogonal Multiple Access (OMA) protocols. PDMA, CDMA, SCMA, IDMA, and SDMA are classified as Non-Orthogonal Multiple Access (NOMA) protocols. A typical example of PDMA is a method implemented using a combination of SPC (Superposition Coding) and SIC (Successive Interference Canceller). CSMA / CA and CSMA / CD are classified as opportunistic access protocols.

[0169] If the wireless interface information includes information indicating an opportunistic connection method, it may also include information indicating details of the access method. As a specific example, the wireless interface information may include information indicating whether it is FBE (Frame Based Equipment) or LBE (Load Based Equipment) as defined in ETSI EN 301 598.

[0170] If the wireless interface information indicates the LBE, the wireless interface information may also include LBE-specific information such as the Priority Class.

[0171] Furthermore, the wireless interface information may also include information related to the duplex modes supported by the communication device 110. Typical examples include information on methods such as FDD (Frequency Division Duplex), TDD (Time Division Duplex), and FD (Full Duplex).

[0172] If TDD is included as wireless interface information, the TDD Frame Structure information used or supported by the communication device 110 may be provided. In addition, information related to the duplex mode may be included in the wireless interface information for each frequency band indicated in the frequency band information.

[0173] If FD is included as wireless interface information, information regarding interference power detection levels may also be included in the wireless interface information.

[0174] Furthermore, the wireless interface information may also include information about the transmission diversity techniques supported by the communication device 110. For example, space-time coding (STC) may be included in the wireless interface information.

[0175] Furthermore, the wireless interface information may also include guard band information. For example, information regarding a predetermined guard band size for the wireless interface may be included in the wireless interface information. Alternatively, for example, information regarding a guard band size desired by the communication device 110 may be included in the wireless interface information.

[0176] Regardless of the above-described embodiment, wireless interface information may be provided for each frequency band.

[0177] Legal information typically refers to information regarding regulations that the communication device 110 must comply with, as determined by the radio regulatory authority or equivalent body of each country or region, or to certification information obtained by the communication device 110.

[0178] Legal information typically includes, for example, information on the upper limit of out-of-band radiation and information on the blocking characteristics of receivers. Legal information typically includes, for example, type approval information and legal regulations that serve as the basis for obtaining certification.

[0179] Type approval information includes, for example, the US FCC ID and the Japanese Technical Standards Conformity Certificate. Legal and regulatory information includes, for example, the US FCC Rule Number and the European ETSI Harmonized Standard Number.

[0180] Regarding legal information, numerical values ​​may be substituted with those specified in the wireless interface technology standards. Examples of wireless interface technology standards include 3GPP TS 36.104 and TS 38.104. These standards specify the Adjacent Channel Leakage Ratio (ACLR).

[0181] The information processing device 200 may derive and use the upper limit of out-of-band radiation using the ACLR specified in the standard, instead of the upper limit information for out-of-band radiation. Alternatively, if necessary, the information processing device 200 may use ACLR itself as the upper limit information for out-of-band radiation.

[0182] Furthermore, the information processing device 200 may use adjacent channel selectivity (ACS) instead of blocking characteristics. These may also be used in combination, or adjacent channel interference ratio (ACIR) may be used. Generally, ACIR has the relationship with ACLR and ACS as shown in equation (1) below. Also, although equation (1) below uses true value representation, it may also be expressed in logarithmic representation.

[0183]

number

[0184] Installer information may include information that can identify the person who installed the communication device 110 (installer), as well as unique information associated with the installr. Typically, this may include information about the individual responsible for the location information of the communication device 110, such as the CPI (Certified Professional Installer) in the US CBRS (see, for example, Non-Patent Document 12).

[0185] The CPI discloses the CPIR-ID (Certified Professional Installer Registration ID) and the CPI name. Additionally, unique information associated with the CPI is disclosed, such as a contact address (mailing address or contact address), email address, telephone number, and PKI (Public Key Identifier). This is not an exhaustive list; other information about the installer may be included in the installer information as needed.

[0186] The group information may include information about the communication device group to which the communication device 110 belongs. Specifically, for example, it may include group information relating to a group of the same or equivalent type as WINNF-SSC-0010 (see, for example, Non-Patent Document 13). Also, for example, if a telecommunications carrier manages the communication devices 110 on a group basis according to its operational policy, information about that group may be included in the group information.

[0187] The information listed above may not be provided by the communication device 110 to the information processing device 200, but rather the information processing device 200 may infer from other information provided by the communication device 110. Specifically, for example, guard band information can be inferred from wireless interface information.

[0188] The guard band information estimation process according to the embodiment will be explained using Figures 5 and 6. Figures 5 and 6 are diagrams showing specific example 3 of the basic principle of the information processing system SYS1 according to the embodiment of this disclosure.

[0189] If the wireless interface used by the communication device 110 is E-UTRA or 5G NR, the information processing device 200 can infer guard band information based on the E-UTRA transmission bandwidth specifications, the 5G NR transmission bandwidth specifications, and Tables 1 to 4 below. The E-UTRA transmission bandwidth specifications are described in 3GPP TS 36.104, for example, as shown in Figure 5. The 5G NR transmission bandwidth specifications are described in 3GPP TS 38.104, as shown in Figure 6. Tables 1 to 4 below are described in TS 38.104.

[0190] [Table 1]

[0191] [Table 2]

[0192] [Table 3]

[0193] [Table 4]

[0194] In other words, it is sufficient for the information processing device 200 to acquire the information listed above, and it is not necessary for the communication device 110 to provide the above information to the information processing device 200. Furthermore, an intermediate device 130 (for example, a network manager) that bundles multiple communication devices 110 does not need to provide the above information to the information processing device 200.

[0195] The provision of information from the communication device 110 or intermediate device 130 to the information processing device 200 is merely one means of providing information in this embodiment. The information listed above is simply information that the information processing device 200 may need to successfully complete the above procedure, and the means of providing the information are irrelevant. For example, WINNF-TS-0061 permits such a method, calling it Multi-Step Registration.

[0196] Furthermore, it goes without saying that the information listed above can be selectively applied depending on the rules / legal systems and technical specifications of the applicable country / region.

[0197] (Supplementary information on required parameters) In the registration procedure, it is anticipated that, in some cases, it may be required that device parameters relating not only to the communication device 110 but also to the terminal 120 be registered in the information processing device 200. In such cases, the term "communication device" in the explanation above in <2-3-1. Registration / Initialization Procedure> may be replaced with "terminal" or a similar term. In addition, terminal-specific parameters not explained in <2-3-1. Registration / Initialization Procedure> may also be treated as required parameters in the registration procedure. For example, terminal-specific parameters include the UE Category defined by 3GPP.

[0198] (Details of the registration process) As mentioned above, the communication device 110, which represents the wireless communication system intending to use the frequency band, generates a registration request including device parameters and notifies the information processing device 200.

[0199] If the device parameters include installer information, the communication device 110 may use the installer information to apply tamper-proof processing to the registration request. Furthermore, some or all of the information included in the registration request may be encrypted. Specifically, for example, the communication device 110 and the information processing device 200 may share a unique public key in advance, and the communication device 110 may encrypt the information using a private key corresponding to that public key. Examples of information that may be encrypted include sensitive information such as location information.

[0200] Furthermore, the ID and location information of the communication device 110 are publicly available, and the information processing device 200 may already have the ID and location information of the main communication devices 110 within its coverage. 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. Therefore, the location information does not need to be included in the registration request.

[0201] Alternatively, the information processing device 200 may return the necessary device parameters to the communication device 110 that sent the registration request, and in response, the communication device 110 may send a registration request containing the device parameters necessary for registration. Thus, the information included in the registration request may vary depending on the circumstances.

[0202] Furthermore, if the communication device 110 is mobile, it may not be necessary to register location information in the information processing device 200, depending on the regulations of the target country or region. Therefore, regarding the provision of location information, it is sufficient to have the necessary functions according to the regulations of the target country or region.

[0203] After receiving a registration request, the information processing device 200 performs the registration process on the communication device 110 and returns a registration response according to the processing result. If there are no missing or abnormal pieces of information necessary for registration, the information processing device 200 records the information in an internal or external storage device and notifies that the registration has been successfully completed. Otherwise, it notifies that the registration has failed. If the registration is successfully completed, the information processing device 200 may assign an ID to each communication device 110 and notify them of the ID information in the response. If the registration fails, the communication device 110 may resend a revised registration request. The communication device 110 may also modify the registration request and attempt the registration procedure again until it is successfully completed.

[0204] Furthermore, the registration procedure may be performed even after registration has been successfully completed. Specifically, for example, if the location information changes beyond a predetermined standard due to movement, accuracy improvements, etc., the registration procedure may be re-executed for the purpose of initialization. The predetermined standard is typically determined by the legal system of each country or region. For example, the US TV White Space Regulation 47 CFR Part 15 Subpart H (see, for example, Non-Patent Document 1) requires Mode II personal / portable White Space devices, that is, devices that utilize available frequencies, to be re-registered if their location changes by more than 100 meters.

[0205] <2-3-2. Available spectrum query procedure> The available frequency information query procedure is a procedure in which a communication device 110 intending to use a frequency band queries an information processing device 200 for information regarding available frequencies. However, it is not always 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 intending 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 executing the query notifies the information processing device 200 of a query request containing information that can identify the communication device 110.

[0206] Here, available frequency information typically refers to information indicating frequencies that the communication device 110 is estimated to be able to use for secondary purposes without causing fatal interference to the primary system.

[0207] Available frequency information is determined, for example, based on a secondary use prohibited area called an Exclusion Zone. Specifically, if a communication device 110 is installed in a secondary use prohibited area established for the purpose of protecting a primary system using frequency channel F1, then frequency channel F1 will not be notified to the communication device 110 as an available channel.

[0208] Available frequency information can also be determined, for example, by the degree of interference it may cause to the primary system. Specifically, even if a frequency channel is outside the secondary use prohibited area, if it is determined that it will cause fatal interference to the primary system, that frequency channel may not be announced as an available channel. An example of a specific calculation method will be described later.

[0209] Furthermore, as mentioned 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 avoid interference that may occur between communication devices 110, a frequency channel that is being used by another communication device 110E located near communication device 110 may not be notified as an available channel. In this way, the available frequency information that is set considering interference with other communication devices 110E may be set as, for example, "recommended frequency information" and provided together with the available frequency information. In other words, it is desirable that the "recommended frequency information" be a subset of the available frequency information.

[0210] Even if it would affect the primary system, if the impact can be avoided by reducing the transmit power, the same frequency as the primary system and nearby communication devices 110 may be advertised as an available channel. In such cases, the maximum permissible transmit power is typically included in the available frequency information. The maximum permissible transmit 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 antenna gain may be set as a permissible peak gain for each spatial direction.

[0211] (Details of required parameters) Information that can identify a wireless communication system intending to use a frequency band could include, for example, unique information registered during the registration process, or the aforementioned ID information.

[0212] Furthermore, the inquiry request may also include inquiry requirements information. Inquiry requirements information may include, for example, information indicating whether the frequency band to be used is available or not. It may also include, for example, transmission power information. The communication device 110 may include transmission power information if, for example, it only wants to know the frequency information for which the desired transmission power can be used. Inquiry requirements information does not necessarily have to be included in the inquiry request.

[0213] Also, when the communication device 110 is mobile, the inquiry requirement information may include geofence information. That is, it is possible to inquire about available frequency information anywhere within the geographical area / space indicated by the geofence information.

[0214] 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 requesting the availability of a channel defined by such a wireless interface technology specification may be included. As another format, a flag requesting the availability of a unit frequency range rather than a defined channel may be included. When 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.

[0215] Also, the inquiry request may 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 by raw data or processed data. For example, standardized metrics represented by RSRP (Reference Signal Received Power), RSSI (Reference Signal Strength Indicator), and RSRQ (Reference Signal Received Quality) may be used for the measurements.

[0216] (Details of the available frequency evaluation process) After receiving the inquiry request, based on the inquiry requirement information, the information processing device 200 executes an evaluation of the available frequencies. For example, as described above, it is possible to execute an evaluation of the available frequencies considering the primary system, its secondary use prohibited area, and the presence of nearby communication devices 110.

[0217] The information processing device 200 may derive a secondary use prohibited area in advance or after receiving a request, and evaluate the available frequencies based on that. For example, if the maximum transmission power PMaxTx (dBm) and minimum transmission power PMinTm) are specified, it is possible to calculate the range of separation distances between the primary system and the secondary system from equation (2) below and determine the secondary use prohibited area.

[0218]

number

[0219] In equation (2) above, ITh(dBm) is the allowable interference power (the limit 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. Furthermore, if the transmission power information or power range information that the communication device 110 wishes to use is supplied by request, frequency availability can be determined by calculating PL-1(PTx(dBm)-ITh(dBm)) and comparing it with the above range formula.

[0220] The information processing device 200 may derive information on the maximum permissible transmit power at a given frequency (channel) as available frequency information. Typically, the maximum permissible transmit power PMaxTx (dBm) is calculated using information on the permissible interference power in the primary system or its protection zone, location information of a reference point for calculating the interference power level experienced by the primary system, registration information of the communication device 110, and a propagation loss estimation model. Specifically, as an example, it is calculated by equation (3) below.

[0221]

number

[0222] Although the antenna gain in the transceiver is not included in equation (3) above, it may be included depending on the method of expressing the maximum permissible transmit power (e.g., EIRP, conducted power, etc.) and the reference point for the received power (e.g., antenna input point, antenna output point, etc.). A safety margin to compensate for fluctuations due to fading may also be included. Feeder loss may also be considered as needed. Furthermore, the same calculation can be performed for neighboring channels by taking into account ACLR (Adjacent Channel Leakage Ratio) and the maximum out-of-band radiation.

[0223] Furthermore, equation (3) above is written based on the assumption that a single communication device 110 is the source of interference (single-station interference). For example, if cumulative interference from multiple communication devices 110 simultaneously (aggregated interference) must be considered, a correction value may be added. Specifically, the correction value can be determined based on three types of interference margin allocation methods (Fixed / Predetermined, Flexible, Flexible Minimized) (see, for example, Non-Patent Document 4).

[0224] As shown in equation (3) above, it is not always possible to directly use the allowable interference power information itself. For example, if the required signal power to interference power ratio (SIR), SINR (Signal to Interference Plus Noise Ratio), etc. of the primary system are available, they may be converted to allowable interference power and used. Note that such conversion processing is not limited to this process and may be applied to the processing of other procedures as well.

[0225] Although equation (3) above is expressed using logarithms, it may, of course, be converted to a real number before use in practice. Furthermore, all parameters expressed in logarithmic form according to the embodiment may be converted to real numbers as appropriate.

[0226] Furthermore, if the aforementioned transmission power information is included in the query requirements information, it is possible to evaluate the available frequencies using a method other than the one described above. Specifically, for example, if the estimated amount of interference is less than the allowable interference power in the primary system or its protection zone, assuming the desired transmission power indicated in the transmission power information is used, it is determined that the above frequency channel is available and this is notified to the communication device 110.

[0227] Furthermore, for example, if the area or space in which the communication device 110 can use the frequency band is predetermined, similar to the REM area, the available frequency information may be derived solely based on the coordinates included in the location information of the communication device 110 (the X, Y, and Z axis coordinates of the communication device 110, or its latitude, longitude, and ground clearance). Also, for example, if a lookup table is provided that associates the coordinates of the location of the communication device 110 with the available frequency information, the above-mentioned available frequency information may be derived solely based on the location information of the communication device 110. Thus, there are various methods for determining the available frequencies, and the methods are not limited to the examples above.

[0228] Furthermore, if the information processing device 200 has acquired information regarding the capabilities of bandwidth expansion 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 technologies in the available frequency information.

[0229] Furthermore, if the information processing device 200 has acquired information about combinations of frequency bands supported by Dual Connectivity and Multi Connectivity as frequency band information supported by the communication device 110, the information processing device 200 may include information such as available frequencies and recommended frequencies for Dual Connectivity and Multi Connectivity in the available frequency information.

[0230] Also, when providing available frequency information for the above-described bandwidth expansion technology, if an imbalance in the maximum allowable transmission power occurs between 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 perspective of primary system protection, the maximum allowable transmission power of each frequency channel may be aligned with the allowable maximum transmission power of a frequency channel with a low maximum allowable power spectral density (PSD).

[0231] The evaluation of available frequencies does not necessarily have to be performed after receiving an inquiry request. For example, after the normal completion of the above-described registration procedure, the information processing apparatus 200 may perform it proactively without an inquiry request. In such a case, a REM, a lookup table, or an information table similar to them shown as an example above may be created.

[0232] Also, an evaluation may be performed on the frequency utilization priority such as PAL or GAA. For example, when the registered device parameters or inquiry requirements include information regarding the frequency utilization priority, it may be determined whether frequency utilization is possible based on the above priority and notified. Also, for example, when information (e.g., Cluster List) regarding a communication apparatus 110 that performs high-priority utilization (e.g., PAL) from the user in advance is registered in the information processing apparatus 200, an evaluation may be performed based on that information (see, for example, Non-Patent Document 3).

[0233] After completing the evaluation of available frequencies, the information processing apparatus 200 notifies the communication apparatus 110 of the evaluation result.

[0234] The communication apparatus 110 may execute the selection of desired communication parameters using the evaluation result received from the information processing apparatus 200. If the <2-3-3. Frequency Utilization Authority Granting Procedure> described later is not adopted, the communication apparatus 110 may start radio wave transmission using the selected desired communication parameters as communication parameters.

[0235] <2-3-3. Spectrum Grant Procedure> The frequency usage rights granting procedure is a procedure for a communication device 110 that intends to use a frequency band to obtain the right to use the frequency for secondary purposes from an information processing device 200. Typically, the procedure begins when the communication device 110 notifies the information processing device 200 of a frequency usage rights granting request that includes information that can identify the communication device 110. In addition, the frequency usage rights granting procedure may be executed when an intermediate device 130, representing one or more communication devices 110 that intend to use the frequency band, notifies the information processing device 200 of a frequency usage rights granting request that includes information that can identify the one or more communication devices 110. As mentioned above, the available frequency information inquiry procedure is not mandatory. Therefore, the frequency usage rights granting procedure may be executed after the available frequency information inquiry procedure or after the registration procedure. Also, "frequency usage rights" are sometimes referred to as "grant".

[0236] In this embodiment, it is assumed that at least two types of frequency usage rights granting request methods may be used. -Specification method - Flexible method

[0237] The specification method is a request method in which the communication device 110 specifies desired communication parameters and requests permission from the information processing device 200 to operate based on those parameters. Desired communication parameters include, but are not limited to, the frequency channel to be used and the maximum transmission power. For example, parameters specific to wireless interface technology (e.g., modulation scheme, duplex mode, etc.) may be specified. Information indicating frequency usage priority / tier, such as PAL and GAA, may also be included.

[0238] The flexible method is a request method in which the communication device 110 specifies only the requirements regarding communication parameters and requests the information processing device 200 to specify communication parameters that satisfy the specified requirements and allow secondary use. Requirements regarding communication parameters include, but are not limited to, bandwidth, desired maximum transmission power, or desired minimum transmission power. For example, parameters specific to wireless interface technology (e.g., modulation scheme, duplex mode, etc.) may be specified. Specifically, for example, one or more TDD Frame Structures may be selected in advance and notified.

[0239] Similar to inquiry requests, frequency usage rights grant requests may also include a measurement report, whether using a specified method or a flexible method. The measurement report includes the results of measurements performed by the communication device 110 and / or terminal 120. The measurement may be represented as raw data or as 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 measurement.

[0240] The communication device 110 may also register the system information used by the communication device 110 in the information processing device 200 during the registration procedure described in <2-3-1. Registration / Initialization Procedure> above.

[0241] (Details of the frequency usage rights granting process) After receiving a frequency usage rights granting request, the information processing device 200 executes the frequency usage rights granting process based on the frequency usage rights granting request method. For example, it is possible to execute the frequency usage rights granting process using the method described in <2-3-2. Inquiry Procedure for Available Frequency Information> above, taking into account the primary system, the secondary use prohibited area, the presence of nearby communication devices 110, etc.

[0242] When a flexible method is used, the maximum permissible transmit power information may be derived using the method described above (details of the available frequency evaluation process). Typically, the maximum permissible transmit power is calculated using permissible interference power information in the primary system or its protected area, location information of a reference point for calculating the interference power level experienced by the primary system, registration information of the communication device 110, and a propagation loss estimation model. Specifically, as an example, it is calculated by equation (3) above.

[0243] Furthermore, as mentioned above, equation (3) above is written based on the assumption that a single communication device 110 is the source of interference. For example, if cumulative interference from multiple communication devices 110 must be considered simultaneously, a correction value may be added. Specifically, for example, the correction value can be determined based on three types of methods (Fixed / Predetermined, Flexible, Flexible Minimized).

[0244] The information processing device 200 can use various propagation loss estimation models in procedures such as granting frequency usage rights and evaluating available frequencies in response to available frequency information inquiry requests. When a model is specified for each application, it is desirable to use the specified model. For example, WINNF-TS-0112 employs propagation loss models such as eHATA (Extended Hata) and ITM (Irregular Terrain Model) depending on its application (see, for example, Non-Patent Document 3). Of course, propagation loss models are not limited to these.

[0245] Some propagation loss estimation models require information about the radio wave propagation path. This information may include, for example, line-of-sight (LOS) and / or non-line-of-sight (NLOS) information, topographic information (e.g., relief, elevation, etc.), and environmental information (e.g., Urban, Suburban, Rural, Open Sky, etc.). When using the propagation loss estimation model, the information processing device 200 may infer the above information from the registration information of the communication device 110 or the primary system information already acquired. Alternatively, if there are pre-specified parameters, it is desirable to use those specified parameters.

[0246] If no propagation loss estimation model is specified for a given application, it may be used interchangeably 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, while when estimating the coverage of the communication device 110, a model that calculates a large loss may be used.

[0247] Furthermore, when a specified propagation loss estimation model is used, it is possible to grant frequency usage rights based on an evaluation of interference risk, for example. Specifically, for instance, if the amount of interference estimated assuming the desired transmission power indicated in the transmission power information is used falls below the permissible interference power in the primary system or its protected area, it is determined that the use of the above frequency channel is permitted, and this is notified to the communication device 110.

[0248] In both the specified method and the flexible method, evaluation may also be performed on frequency utilization priorities such as PAL and GAA, similar to query requests. For example, if the registered device parameters or query requirements include information on frequency utilization priorities, it may be determined and notified whether frequency utilization is possible based on the frequency utilization priorities. Also, for example, if information about communication devices 110 that will perform high-priority utilization (e.g., PAL) has been registered in the information processing device 200 in advance by the user, the evaluation may be performed based on that information. For example, information about communication devices 110 is referred to as a Cluster List (see, for example, Non-Patent Document 14).

[0249] Furthermore, in any of the above calculations, when using the location information of the communication device 110, positioning accuracy information (location uncertainty) may be used to correct the location information and coverage, and frequency availability may be determined.

[0250] The frequency usage rights granting process does not necessarily have to be triggered by the receipt of a frequency usage rights granting request. For example, the information processing device 200 may proactively perform the process after the successful completion of the aforementioned registration procedure, without a frequency usage rights granting request. Alternatively, the frequency usage rights granting process may be performed at regular intervals. In such cases, the aforementioned REM, lookup table, or a similar information table may be created. This allows the information processing device 200 to quickly return a response after receiving a frequency usage rights granting request, as the permitted frequencies can be determined using only location information.

[0251] <2-3-4. Spectrum Use Notification / Authorization / Heartbeat> The frequency usage notification / authentication procedure is a procedure in which a wireless communication system using a frequency band notifies an information processing device 200 of its use of the frequency based on communication parameters authorized for use in the frequency usage authorization procedure. The communication device 110 that performs the frequency usage notification on behalf of the wireless communication system may be the same as or different from the communication device 110 that performed the previous procedures. Typically, the communication device 110 notifies the information processing device 200 of a notification message containing information that allows the communication device 110 to be identified.

[0252] It is desirable that frequency usage notifications be performed periodically until the frequency usage is rejected by the information processing device 200. In this case, the frequency usage notification / authentication procedure is also referred to as a heartbeat.

[0253] After receiving a frequency usage notification, the information processing device 200 may determine whether to start or continue frequency usage (in other words, radio wave transmission on the permitted frequency). One method of determination is to check the frequency usage information of the primary system. Specifically, it is possible to decide whether to permit or deny the start or continuation of frequency usage (radio wave transmission on the permitted frequency) based on changes in the frequency used by the primary system, changes in the frequency usage status of primary systems whose radio wave usage is not regular (for example, the US CBRS shipborne radar), etc. If starting or continuing is permitted, the communication device 110 may start or continue frequency usage (radio wave transmission on the permitted frequency).

[0254] After receiving the frequency usage notification, the information processing device 200 may instruct the communication device 110 to reconfigure the communication parameters. Typically, the information processing device 200 may instruct the communication parameter reconfiguration in its response to the frequency usage notification. For example, information regarding recommended communication parameters (hereinafter referred to as recommended communication parameter information) may be provided. It is desirable for the communication device 110, having received the recommended communication parameter information, to re-execute the frequency usage authorization procedure described in <2-3-3. Frequency Usage Authorization Procedure> above using the recommended communication parameter information.

[0255] <2-3-5. Supplementary Information on Various Procedures> The various procedures described above do not necessarily need to be implemented individually, as will be explained below. For example, two different procedures may be implemented by substituting a third procedure that has the roles of 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 usage authorization procedure and a frequency usage notification may be executed together. Of course, this is not limited to these combinations, and three or more procedures may be executed together. Furthermore, as mentioned above, a single procedure may be executed in multiple separate steps.

[0256] Furthermore, the expression "to acquire" or a similar expression in the embodiments does not necessarily mean that the information is acquired in accordance with the procedures described in the embodiments. For example, although it is stated that the location information of the communication device 110 is used in the available frequency evaluation process, it is not necessarily required to use the information acquired in the registration procedure. If the available frequency inquiry procedure request includes location information, that location information may be used. In other words, the acquisition procedure described in the embodiments is just one example, and acquisition by other procedures is permitted within the scope of the embodiments and technical feasibility.

[0257] Furthermore, information described as potentially being included in the response from the information processing device 200 to the communication device 110 may, if possible, be proactively notified by the information processing device 200 using a push notification method. Specific examples include available frequency information, recommended communication parameter information, and notifications of refusal to continue radio transmission, which may be notified using a push notification method.

[0258] <2-3-6. Various procedures related to terminals> Up to this point, the explanation has mainly assumed processing on the communication device 110a. However, depending on the embodiment, not only the communication device 110a, but also the terminal 120 and the communication device 110b may operate under the management of the information processing device 200. That is, it is assumed that the 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 <2-3-1. Registration / Initialization Procedure> to <2-3-5. Supplement to Various Procedures>. However, unlike the communication device 110a, the terminal 120 and the communication device 110b must use a frequency managed by the information processing device 200 for the backhaul link and cannot transmit radio waves on their own. Therefore, it is desirable to start backhaul communication for the purpose of accessing the information processing device 200 only after detecting radio waves or authorization signals transmitted by the communication device 110a (the communication device 110 capable of providing wireless communication services, or the master communication device 110 in a master-secondary type).

[0259] On the other hand, being under the management of the information processing device 200 means that the terminal 120 and communication device 110b may also have permissible communication parameters set for the purpose of protecting 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 be mobile; that is, their location information is dynamically updated. Depending on the legislation, if the location information changes beyond a certain point, re-registration with the information processing device 200 may be required.

[0260] Taking into account the diverse usage and operation patterns of these terminals 120 and communication devices 110, the operating patterns of TVWS as defined by the UK Office of Communications (Ofcom) specify the following two types of communication parameters (see, for example, Non-Patent Document 15). -generic operational parameters -Specific available parameters (specific clinical parameters)

[0261] A 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 given master WSD (corresponding to communication device 110)." A key feature is that it is calculated by the WSDB without using the slave WSD's location information.

[0262] The comprehensive availability parameters can be provided by unicast or broadcast from a communication device 110 that has already been authorized to transmit radio waves from the information processing device 200. For example, a broadcast signal such as the Contact Verification Signal (CVS) as defined in the U.S. FCC Part 15 Subpart H may be used. Alternatively, they may be provided by a broadcast signal specific to the wireless interface. This allows the terminal 120 and the communication device 110b to treat them as communication parameters used for radio transmission aimed at accessing the information processing device 200.

[0263] 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 the device parameters of the slave WSD corresponding to terminal 120. A key feature is that they are calculated by the WSDB (White Space Database) using the slave WSD's location information.

[0264] Furthermore, the CPE-CBSD Handshake Procedure adopted in CBRS can be considered as another form of procedure relating to terminal 120 (see, for example, Non-Patent Document 8). CPE-CBSD does not have a wired backhaul line and accesses the internet via BTS-CBSD. Therefore, without special provisions or procedures, it cannot obtain permission from SAS to transmit radio waves in the CBRS band. The CPE-CBSD Handshake Procedure allows CPE-CBSD to transmit radio waves with the same maximum EIRP and minimum necessary duty cycle as terminal (EUD) until permission to transmit radio waves is obtained from SAS. Accordingly, communication device 110b can establish a line to obtain permission to transmit radio waves from information processing device 200 by setting its transmission EIRP to the terminal's maximum EIRP and performing wireless communication with communication device 110a with the minimum necessary duty cycle. After obtaining permission to transmit radio waves, it becomes possible to use up to the maximum EIRP specified in the communication device regulations within the scope of the permission.

[0265] <2-3-7. 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 communication device 110 - Area Information - Protected System Information

[0266] The information relating to the communication device 110 includes, at a minimum, registration information and communication parameter information of the communication device 110 operating under the authorization of the information processing device 200. It may also include registration information of the communication device 110 that does not have authorized communication parameters.

[0267] 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 during the registration procedure described above. It is not necessarily required that all registered information be exchanged. For example, information that may constitute personal information does not need to be exchanged. Furthermore, when exchanging the registration information of the communication device 110, the registration information may be exchanged encrypted, or the content of the registration information may be obscured before exchange. For example, information converted to binary values ​​or information signed using an electronic signature mechanism may be exchanged.

[0268] The communication parameter information of the communication device 110 typically refers to information relating to the communication parameters currently being used by the communication device 110. It is desirable that this information includes at least the operating frequency and transmission power. Other communication parameters may also be included.

[0269] Area information typically refers to information that indicates a given geographical area. This information can include area information with various attributes in various forms.

[0270] For example, as in the PPA (PAL Protection Area) in WINNF-TS-0112, the area information may include information about the protected area of ​​the communication device 110, which is a high-priority secondary system (see, for example, Non-Patent Document 14). In this case, the area information may be represented, for example, by a set of three or more coordinates indicating a geographic location. Also, for example, if multiple information processing devices 200 can access a common external database, the area information may be represented by a unique ID, and the actual geographic area may be accessed from the external database using the above ID.

[0271] Furthermore, for example, information indicating the coverage of the communication device 110 may also be included. In this case, the area information can also be represented, for example, by a set of three or more coordinates indicating a geographical location. Alternatively, for example, assuming that the coverage is a circle centered on the geographical location of the communication device 110, it can also be represented by information indicating the size of the radius. Furthermore, for example, if multiple information processing devices 200 can access a common external database that records area information, the information indicating the coverage can be represented by a unique ID, and the actual coverage can be accessed from the external database using the above ID.

[0272] Furthermore, another form of information that may be included is information relating to area divisions predetermined by the government or other authorities. Specifically, for example, a certain area can be indicated by showing an address. Similarly, license areas, for example, can be expressed in the same way.

[0273] Furthermore, in yet another embodiment, area information does not necessarily have to represent a planar area, but may represent a three-dimensional space. For example, it may be represented using a spatial coordinate system. Alternatively, information indicating a predetermined closed space, such as the number of floors, floor number, or room number of a building, may be used.

[0274] Protected system information refers to information about wireless communication systems treated as protected, such as the incumbent tier mentioned above. Situations requiring the exchange of this information include, for example, situations requiring cross-border coordination. It is quite possible that different protected systems exist in the same frequency band between adjacent countries or regions. In such cases, protected system information can be exchanged between different information processing devices 200 belonging to different countries or regions as needed.

[0275] In another aspect, the protected system information may include information about secondary licensees and information about wireless systems operated by secondary licensees. Specifically, a secondary licensee is a lessee of the license; for example, a secondary licensee is expected to lease PAL from the owner and operate their own wireless communication system. If the information processing device 200 manages the lease independently, it may exchange information about secondary licensees and wireless communication systems operated by secondary licensees with other information processing devices 200 for the purpose of protection.

[0276] This information can be exchanged between information processing devices 200, directly or indirectly, regardless of the decision-making topology applied to each information processing device 200.

[0277] Furthermore, this information can be exchanged in various ways. An example is shown below. -ID specification method -Period specification method -Area specification method - Dump method

[0278] The ID specification method is a method of obtaining information corresponding to an ID by using an ID that has been assigned in advance to identify the information managed by the information processing device 200. For example, suppose the first information processing device 200-1 manages a communication device 110 with the ID "AAA". In this case, the second information processing device 200-2 executes an information acquisition request to the first information processing device 200-1, specifying "AAA". After receiving the request, the first information processing device 200-1 performs an information search for "AAA" and notifies the first information processing device 200-1 in a response with information about the communication device 110 with "AAA", such as registered information communication parameter information.

[0279] A time-specified method is a method in which information that meets predetermined conditions can be exchanged within a specified period.

[0280] The specified conditions include, for example, whether or not the information has been updated. For example, if a request specifies that information regarding communication devices 110 during a specific period be obtained, the registration information of communication devices 110 newly registered during that period may be notified in the response. In addition, the registration information or communication parameter information of communication devices 110 whose communication parameters have changed during that period may also be notified in the response.

[0281] The specified conditions include, for example, whether or not the information has been recorded by the information processing device 200. For example, if a request specifies the acquisition of information about the communication device 110 during a specific period, the response may notify the user of registration information or communication parameter information recorded by the information processing device 200 during the specified period. If the information has been updated during the specified period, the latest information for that period may be notified. Alternatively, an update history may be notified for each piece of information.

[0282] The area specification method involves specifying a particular area, and information about communication devices 110 belonging to that area is exchanged. For example, if a request specifies the acquisition of information about communication devices 110 in a specific area, the response may notify the user of registration information or communication parameter information of the communication devices 110 installed in the specified area.

[0283] The dump method is a method of providing all the information recorded by the information processing device 200. At a minimum, it is desirable that information related to the communication device 110 and area information be provided using the dump method.

[0284] The explanation of information exchange between the information processing devices 200 up to this point is based entirely on the pull method. That is, information corresponding to the parameters specified in the request is returned in the response, which can be implemented, for example, using the HTTP GET method. However, it is not necessary to be limited to the pull method; information may also be actively provided to other information processing devices 200 using the push method. The push method can be implemented, for example, using the HTTP POST method.

[0285] (Order / request procedure) The information processing devices 200 may issue commands or requests to each other. Specifically, one example is the reconfiguration of the communication parameters of the communication device 110. For example, if the first communication device 110-1, which is managed by the first information processing device 200-1, is determined to be receiving significant interference from the second communication device 110-2, which is managed by the second information processing device 200-2, the first information processing device 200-1 may request the second information processing device 200-2 to change the communication parameters of the second communication device 110-2.

[0286] Another example is the reconstruction of area information. For instance, if there are deficiencies in the calculation of coverage information or protected area information for the second communication device 110-2 managed by the second information processing device 200-2, the first information processing device 200-1 may request the second information processing device 200-2 to reconstruct the area information. Requests for area information reconstruction may also be made for various other reasons.

[0287] <2-3-8. Means of Information Transmission> The entity-to-entity notification (signaling) described so far can be achieved through various media. Naturally, implementation is not limited to these.

[0288] (Signaling between information processing device 200 and communication device 110) Notification from the communication device 110 to the information processing device 200 may be performed, for example, at the application layer. For example, it may be performed using HTTP (Hyper Text Transfer Protocol). Signaling can be performed by describing the required parameters in the HTTP message body according to a predetermined format. Furthermore, when using HTTP, notification from the information processing device 200 to the communication device 110 is also performed according to the HTTP response mechanism.

[0289] (Signaling between communication device 110 and terminal 120) This explanation will use E-UTRA or 5G NR as an example. Notification from the communication device 110 to the terminal 120 may be performed using, for example, at least one of the following: Radio Resource Control (RRC) signaling, System Information (SI), and Downlink Control Information (DCI). In addition, the downlink physical channel may be PDCCH (Physical Downlink Control Channel), PDSCH (Physical Downlink Shared Channel), PBCH (Physical Broadcast Channel), NR-PDCCH, NR-PDSCH, NR-PBCH, etc., and at least one of these may be used.

[0290] Notifications from terminal 120 to communication device 110 may be performed using, for example, RRC (Radio Resource Control) signaling or uplink control information (UCI). Alternatively, they may be performed using uplink physical channels (PUCCH: Physical Uplink Control Channel, PUSCH: Physical Uplink Shared Channel, PRACH: Physical Random Access Channel).

[0291] Signaling may be performed at higher layers, not just the physical layer signaling described above. For example, when performed at the application layer, signaling may be performed by writing the required parameters in the HTTP message body according to a predetermined format.

[0292] (Signaling between terminals 120) Figure 7 will be used to illustrate the concept using E-UTRA or 5G NR as an example. Figure 7 is a diagram showing specific example 4 of the basic principles of a communication system according to the embodiment of this disclosure. Figure 7 shows an example of the signaling flow when D2D or V2X (Vehicle-to-Everything) communication between terminals 120 is assumed as the communication of the secondary system. D2D or V2X communication between terminals 120 may be performed using a physical sidelink channel (PSCCH: Physical Sidelink Control Channel, PSSCH: Physical Sidelink Shared Channel, PSBCH: Physical Sidelink Broadcast Channel).

[0293] In the example shown in Figure 7, the master information processing device 200-1 calculates communication parameters and notifies the communication device 110-1, which has a 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 it may determine and notify conditions indicating the range of the communication parameters. The communication device 110-1 acquires the communication parameters and sets the communication parameters that it will use itself. Then, it notifies the terminals 120 (not shown) under its control of the communication device 110-1 of the communication parameters for terminal 120. Each terminal 120 under the communication device 110 acquires and sets the communication parameters for terminal 120. Then, it performs communication with other terminals 120.

[0294] In the example shown in Figure 7, the master information processing device 200-1 calculates communication parameters and notifies the intermediate device 130, which has a secondary information processing device 200-2. At this time, the information processing device 200-1 may determine and notify the values ​​of the communication parameters, or it may determine and notify conditions indicating the range of the communication parameters. The intermediate device 130 acquires the communication parameters and notifies the communication parameters to the communication devices 110-2, 110-3, and 110-4. The communication devices 110-2, 110-3, and 110-4 acquire the communication parameters and set the communication parameters to be used by the communication devices 110-2, 110-3, and 110-4 themselves. Then, they notify the terminal 120 (not shown), which is under the control of the communication devices 110-2, 110-3, and 110-4, of the communication parameters for terminal 120 (not shown). Each terminal 120 under communication devices 110-2, 110-3, and 110-4 acquires and sets communication parameters for itself. Then, it performs communication with other terminals 120.

[0295] When using a shared frequency channel for sidelink communication (direct communication between terminals 120), communication parameters may be notified, acquired, or set in conjunction with a resource pool for sidelink communication within the shared frequency channel. A resource pool is a radio resource for sidelink communication configured by specific frequency resources or time resources. Frequency resources include, for example, resource blocks and component carriers. Time resources include, for example, radio frames, subframes, slots, and mini-slots. When a resource pool is configured within a frequency channel subject to shared frequency communication, it is configured by the communication device 110 to terminal 120 based on at least one of RRC signaling, system information, and downlink control information. The resource pool and communication parameters to be applied in the sidelink are also configured by the communication device 110 to terminal 120 based on at least one of RRC signaling, system information, and downlink control information. Notifications regarding resource pool settings and notifications regarding communication parameters to be used in sidelinks may be sent simultaneously or separately.

[0296] <<3. Example of the overall configuration of an information processing system>> An example of the overall configuration of the information processing system SYS1 will be described using Figure 8. Figure 8 is a diagram showing an example of the overall configuration of the information processing system SYS1 according to the embodiment of this disclosure. Figure 8 shows an example of the configuration of the information processing system SYS1, which includes a primary system in addition to a secondary system.

[0297] Here, the primary system is an existing system in a certain frequency band, and that frequency band is used preferentially. The primary system includes a first communication device 110P and a first terminal 120P (in the example in Figure 8, the first terminal 120P_1 and the first terminal 120P_2).

[0298] The secondary system includes communication devices 110-1 to 110-3 and terminals 120-1 to 120-5. To distinguish it from the first communication device 110P included in the primary system, communication device 110 included in the secondary system is also referred to as the second communication device 110S. Similarly, to distinguish it from the first terminal 120P included in the primary system, terminal 120 included in the secondary system is also referred to as the second terminal 120S.

[0299] Figure 8 shows a configuration in which the primary system includes one first communication device 110P and two first terminals 120P. However, the number of first communication devices 110P and first terminals 120P is not limited to the example in Figure 8. For example, there may be multiple first communication devices 110P. Also, there may be one first terminal 120P, or three or more.

[0300] Similarly, the number and configuration of each device included in the secondary system are not limited to the example in Figure 8. For example, the communication device 110-4 and terminals 120-6 and 120-7 shown in Figure 1 may also be included in the secondary system.

[0301] The information notification device 400 communicates with the primary system equipment (the first communication device 110P and / or the first terminal 120P). The information notification device 400 notifies the information processing device 200 of information regarding the frequency usage of the first communication device 110P and / or the first terminal 120P. This notification may be given periodically or irregularly.

[0302] In Figure 8, the first communication device 110P and / or the first terminal 120P are not directly connected to the information notification device 400. This means that the means by which the information notification device 400 obtains information regarding the frequency usage of the first communication device 110P and / or the first terminal 120P are not limited; in other words, the information notification device 400 may obtain this information by any means.

[0303] The information processing device 200, via the information notification device 400, uses information obtained from the primary system to instruct the second communication device 110S and / or the second terminal 120S to make secondary use of the frequency band used by the primary system. The second communication device 110S and / or the second terminal 120S then carry out the secondary use of this frequency band in accordance with the instructions from the information processing device 200.

[0304] <3-1. Example of Information Processing Device Configuration> Figure 9 is a block diagram showing an example configuration of an information processing device 200 according to an embodiment of the present disclosure. The information processing device 200 comprises a communication unit 210, a storage unit 220, and a control unit 230. Note that the configuration shown in Figure 9 is a functional configuration, and the hardware configuration may differ. Furthermore, the functions of the information processing device 200 may be distributed and implemented across multiple physically separated configurations.

[0305] The communication unit 210 is a communication interface for communicating with other devices. The communication unit 210 may be a network interface or a device connection interface. For example, the communication unit 210 may be a LAN (Local Area Network) interface such as a NIC (Network Interface Card), or a USB interface consisting of a USB (Universal Serial Bus) host controller, USB port, etc. Furthermore, the communication unit 210 may be a wired interface or a wireless interface. The communication unit 210 functions as a communication means for the information processing device 200. The communication unit 210 communicates with the communication device 110 according to the control of the control unit 230.

[0306] The memory unit 220 is a data read / write storage device such as DRAM, SRAM, flash memory, or hard disk.

[0307] The control unit 230 is a controller that controls various parts of the information processing device 200. The control unit 230 is implemented by a processor such as a CPU or MPU. For example, the control unit 230 is implemented by the processor executing various programs stored in the internal memory of the information processing device 200 using RAM or the like as a working area. The control unit 230 may also be implemented by an integrated circuit such as an ASIC or FPGA. A CPU, MPU, ASIC, and FPGA can all be considered as controllers.

[0308] <3-2. Example of Communication Device Configuration> The communication device 110 is a wireless communication device (wireless system) that communicates wirelessly with other wireless communication devices. The communication device 110 may communicate wirelessly with the terminal 120 via a relay station, or it may communicate wirelessly with the terminal 120 directly. The communication device 110 is a type of information processing device. If the communication device 110 is mobile, then the communication device 110 is also a type of "mobile communication device" in this embodiment.

[0309] The communication device 110 may be, for example, a radio base station (Base Station, Node B, eNB, gNB, or 6GNB, etc.) or a device equivalent to a radio access point. The communication device 110 may be a radio relay station. The communication device 110 may be an optical extension device called an RRH (Remote Radio Head). The communication device 110 may be a receiving station such as an FPU (Field Pickup Unit). The communication device 110 may be an IAB (Integrated Access and Backhaul) donor node or IAB relay node that provides radio access lines and radio backhaul lines by time division multiplexing, frequency division multiplexing, or spatial division multiplexing. Here, the explanation will assume that the communication device 110 is a radio base station.

[0310] The wireless access technology used by the communication device 110 may be cellular communication technology. The wireless access technology used by the communication device 110 may be wireless LAN technology. The wireless access technology used by the communication device 110 may be LPWA (Low Power Wide Area) communication technology. However, the wireless access technology used by the communication device 110 is not limited to these, and may be other wireless access technologies. The wireless communication used by the communication device 110 may be wireless communication using millimeter waves or wireless communication using terahertz waves. The wireless communication used by the communication device 110 may be wireless communication using radio waves or wireless communication using infrared or visible light (optical wireless). In addition, the communication device 110 may be capable of NOMA (Non-Orthogonal Multiple Access) communication with the terminal 120. Here, NOMA communication refers to communication (transmission, reception, or both) using non-orthogonal resources. The communication device 110 may also be capable of NOMA communication with other communication devices 110.

[0311] Furthermore, the communication device 110 may be able to communicate with the core network via a base station-core network interface (e.g., NG Interface, S1 Interface, etc.). This interface may be either wired or wireless. In addition, the communication device 110 may be able to communicate with other base stations (other communication devices 110) via an inter-base station interface (e.g., Xn Interface, X2 Interface, F1 Interface, etc.). This interface may be either wired or wireless.

[0312] The concept of a base station (also called "base station equipment") includes not only donor base stations but also relay base stations (also called "relay stations"). A relay base station may be any one of the following: an RF Repeater, a Smart Repeater, or an Intelligent Surface. The concept of a base station includes not only structures equipped with base station functions but also equipment installed on those structures.

[0313] Structures include buildings such as skyscrapers, houses, transmission towers, train stations, airports, ports, office buildings, school buildings, hospitals, factories, commercial facilities, and stadiums. The concept of structures also includes not only buildings but also non-building structures such as tunnels, bridges, dams, walls, and steel columns, as well as equipment such as cranes, gates, and wind turbines. The concept of structures also includes not only structures on land (on the surface in the narrow sense) or underground, but also structures on water such as piers or megafloats, and underwater structures such as oceanographic observation equipment. A base station can also be described as an information processing device.

[0314] The communication device 110 may be a donor station or a relay station. Furthermore, the communication device 110 may be a fixed station or a mobile station. A mobile station is a wireless communication device configured to be mobile (for example, a base station). In this case, the communication device 110 may be a device installed on a mobile object or the mobile object itself. For example, a relay station with mobility can be considered a communication device 110 as a mobile station. Also, devices that are inherently mobile, such as vehicles, UAVs (Unmanned Aerial Vehicles) represented by drones, and smartphones, and that are equipped with base station functions (or at least some of the functions of a base station), also qualify as a communication device 110 as a mobile station.

[0315] Here, the moving object may be a mobile device such as a smartphone or mobile phone. The moving object may be a moving object that moves on land (ground in the narrow sense) (for example, a car, bicycle, bus, truck, motorcycle, train, or maglev train or other vehicle), or a moving object that moves underground (for example, inside a tunnel) (for example, a subway). Furthermore, the moving object may be a moving object that moves on water (for example, a passenger ship, cargo ship, or hovercraft or other vessel), or a moving object that moves underwater (for example, a submersible, submarine, or unmanned underwater vehicle or other submersible). Furthermore, the moving object may be a moving object that moves within the atmosphere (for example, an airplane, airship, or drone or other aircraft).

[0316] The communication device 110 may be a ground base station (ground station) installed on the ground. The communication device 110 may be a base station located on a ground structure, or a base station installed on a mobile body moving on the ground. The communication device 110 may be an antenna installed on a structure such as a building and a signal processing device connected to that antenna. The communication device 110 may be the structure or the mobile body itself. "Ground" refers to ground in a broad sense, including not only land (ground in the narrow sense) but also underground, on water, and underwater. The communication device 110 is not limited to a ground base station. If the communication system is a satellite communication system, the communication device 110 may be an aircraft station. From the perspective of a satellite station, an aircraft station located on Earth is a ground station.

[0317] The communication device 110 is not limited to a ground station. The communication device 110 may be a non-ground base station device (non-ground station) capable of floating in the air or space. The communication device 110 may be an aircraft station or a satellite station.

[0318] As described above, the communication device 110 may be a relay station. Relay stations are, for example, aeronautical stations or earth stations. Relay station equipment can be considered a type of relay equipment as described above. An aeronautical station is a radio station installed on the ground or on a mobile device moving on the ground in order to communicate with an aircraft station. An earth station is a radio station located on Earth (including in the air) in order to communicate with a satellite station. An earth station may be a large earth station or a small earth station such as a VSAT (Very Small Aperture Terminal).

[0319] The earth station may be a VSAT control earth station (also called a master station or HUB station) or a VSAT earth station (also called a slave station). Furthermore, the earth station may be a radio station installed on a mobile vehicle moving on the ground. For example, an earth station installed on a ship is an Earth Station on board Vessels (ESV). Earth stations may also include aircraft earth stations installed on aircraft (including helicopters) that communicate with satellite stations. Earth stations may also include aeronautical earth stations installed on mobile vehicles moving on the ground that communicate with aircraft earth stations via satellite stations. Relay station equipment may be a portable radio station that communicates with satellite stations or aircraft stations.

[0320] The coverage size of the communication device 110 may be relatively large, such as a macrocell, or relatively small, such as a picocell. The coverage size of the communication device 110 may be extremely small, such as a femtocell. The communication device 110 may have a beamforming function. The communication device 110 may form cells or service areas for each beam. Furthermore, or alternatively, in addition to beamforming which gives directionality to the beam, the communication device 110 may have a function that further considers distance information from the antenna of the communication device 110 to deliver the desired wave to a predetermined point with pinpoint accuracy. This function may be called beam focusing or point forming.

[0321] Figure 10 is a block diagram showing the configuration of a communication device 110 according to an embodiment of the present disclosure. The communication device 110 comprises a wireless communication unit 111, a storage unit 112, and a control unit 113. However, the configuration shown in Figure 10 is a functional configuration, and the hardware configuration may differ. Furthermore, the functions of the communication device 110 may be distributed and implemented across multiple physically separated configurations.

[0322] The wireless communication unit 111 is a signal processing unit for wireless communication with other wireless communication devices. The wireless communication unit 111 is controlled by the control unit 113. The wireless communication unit 111 supports one or more wireless access schemes. The wireless communication unit 111 may support at least one of NR, LTE, and 6G. In addition to NR, LTE, and 6G, the wireless communication unit 111 may support W-CDMA and cdma2000, etc. The wireless communication unit 111 may support automatic retransmission technologies such as HARQ (Hybrid Automatic Repeat reQuest).

[0323] The wireless communication unit 111 includes a transmission processing unit 1111, a reception processing unit 1112, and an antenna 1113. The wireless communication unit 111 may include multiple transmission processing units 1111, reception processing units 1112, and antennas 1113. If the wireless communication unit 111 supports multiple wireless access methods, each part of the wireless communication unit 111 may be configured separately for each wireless access method. The transmission processing unit 1111 and the reception processing unit 1112 may be configured separately for LTE, NR, and 6G. The antenna 1113 may be composed of multiple antenna elements, for example, multiple patch antennas. The wireless communication unit 111 may have a beamforming function. For example, the wireless communication unit 111 may have a polarization beamforming function using vertical polarization (V polarization) and horizontal polarization (H polarization) (or a polarization beamforming function using dual polarization in polarization directions of 45 degrees and -45 degrees from the vertical).

[0324] The transmission processing unit 1111 performs the transmission processing of downlink control information and downlink data. For example, the transmission processing unit 1111 encodes the downlink control information and downlink data input from the control unit 113 using encoding methods such as block coding, convolutional coding, or turbo coding. Here, encoding may be done using polar coding or LDPC coding (Low Density Parity Check Code). The transmission processing unit 1111 then modulates the encoded bits using a predetermined modulation method such as BPSK, QPSK, 16QAM, 64QAM, or 256QAM. In this case, the signal points on the constellation do not necessarily have to be equidistant. The constellation may be a non-uniform constellation (NUC). The transmission processing unit 1111 then multiplexes the modulation symbols and downlink reference signals for each channel and places them in predetermined resource elements. The transmission processing unit 1111 then performs various signal processing on the multiplexed signals. For example, the transmission processing unit 1111 performs processing such as conversion to the frequency domain using the Fast Fourier Transform, addition of a guard interval (cyclic prefix), generation of a baseband digital signal, conversion to an analog signal, quadrature modulation, upconversion, removal of extraneous frequency components, and power amplification. The signal generated by the transmission processing unit 1111 is transmitted from the antenna 1113.

[0325] The receiving processing unit 1112 processes the uplink signal received via the antenna 1113. For example, the receiving processing unit 1112 performs down-conversion, removal of unwanted frequency components, amplification level control, quadrature demodulation, conversion to a digital signal, removal of guard intervals (cyclic prefixes), and extraction of frequency domain signals using the Fast Fourier Transform on the uplink signal. Then, the receiving processing unit 1112 separates the uplink channel and uplink reference signal, such as PUSCH (Physical Uplink Shared Channel) and PUCCH (Physical Uplink Control Channel), from the processed signal. The receiving processing unit 1112 also demodulates the received signal using modulation schemes such as BPSK (Binary Phase Shift Keying) and QPSK (Quadrature Phase Shift Keying) for the modulation symbols of the uplink channel. The modulation scheme used for demodulation may be 16QAM (Quadrature Amplitude Modulation), 64QAM, or 256QAM. In this case, the signal points on the constellation do not necessarily have to be equidistant. The constellation may be a non-uniform constellation (NUC). The receiving processing unit 1112 then performs decoding on the encoded bits of the demodulated uplink channel. The decoded uplink data and uplink control information are output to the control unit 113.

[0326] Antenna 1113 is an antenna device that converts electric current and radio waves to each other. Antenna 1113 may consist of one antenna element, for example, one patch antenna. Antenna 1113 may consist of multiple antenna elements, for example, multiple patch antennas. If antenna 1113 consists of multiple antenna elements, the wireless communication unit 111 may have a beamforming function. The wireless communication unit 111 may be configured to generate a directional beam by controlling the directivity of the radio signal using multiple antenna elements. Antenna 1113 may be a dual-polarization antenna. If antenna 1113 is a dual-polarization antenna, the wireless communication unit 111 may use vertical polarization (V polarization) and horizontal polarization (H polarization) (or dual polarization in polarization directions of 45 degrees and -45 degrees from the vertical) when transmitting the radio signal. The wireless communication unit 111 may control the directivity of the transmitted radio signal using vertical polarization and horizontal polarization (or dual polarization in polarization directions of 45 degrees and -45 degrees from the vertical). Furthermore, the wireless communication unit 111 may transmit and receive signals spatially multiplexed via multiple layers composed of multiple antenna elements.

[0327] The memory unit 112 is a read / write storage device such as DRAM, SRAM, flash memory, or a hard disk.

[0328] The control unit 113 is a controller that controls various parts of the communication device 110. The control unit 113 controls the wireless communication unit 111 to perform wireless communication with other wireless communication devices. The control unit 113 may be implemented by a processor such as a CPU or MPU. Specifically, the control unit 113 may be implemented by the processor executing various programs stored in the internal storage device of the communication device 110 using RAM or the like as a working area. The control unit 113 may be implemented by an integrated circuit such as an ASIC or FPGA. Furthermore, the control unit 113 may be implemented by a GPU. CPU, MPU, ASIC, FPGA, and GPU can all be considered as controllers. The control unit 113 may be composed of multiple physically separated objects. For example, the control unit 113 may be composed of multiple semiconductor chips.

[0329] In some embodiments, the communication device 110 may be composed of a collection of multiple physical or logical devices. For example, the communication device 110 in this embodiment may be divided into multiple devices such as a BBU (Baseband Unit) and an RU (Radio Unit). The communication device 110 may be interpreted as a collection of these multiple devices. Furthermore, the base station may be either a BBU or an RU, or both. The BBU and RU may be connected by a predetermined interface, such as eCPRI (enhanced Common Public Radio Interface).

[0330] RU may also be referred to as RRU (Remote Radio Unit) or RD (Radio DoT). RU may correspond to gNB-DU (gNB Distributed Unit), which will be described later. BBU may correspond to gNB-CU (gNB Central Unit), which will be described later. RU may be a device formed integrally with the antenna. The antenna of the communication device 110, for example, an antenna formed integrally with the RU, may employ an Advanced Antenna System and support MIMO such as FD-MIMO or beamforming. The antenna of the communication device 110 may have, for example, 64 transmitting antenna ports and 64 receiving antenna ports.

[0331] The antenna mounted on the RU may be an antenna panel composed of one or more antenna elements, and the RU may be equipped with one or more antenna panels. The RU may be equipped with two types of antenna panels: a horizontally polarized antenna panel and a vertically polarized antenna panel. The RU may be equipped with two types of antenna panels: a right-hand circularly polarized antenna panel and a left-hand circularly polarized antenna panel, or an antenna panel with a polarization direction of 45 degrees from the vertical and an antenna panel with a polarization direction of -45 degrees. Multiple antennas with these multiple polarization directions may be mounted on a single antenna panel. The RU may form and control independent beams for each antenna panel.

[0332] Multiple communication devices 110 may be connected to each other. One or more communication devices 110 may be included in a radio access network (RAN). In this case, the communication devices 110 may simply be referred to as RAN, RAN node, AN (Access Network), or AN node, etc. In LTE, the RAN is sometimes called EUTRAN (Enhanced Universal Terrestrial RAN). In NR, the RAN is sometimes called NGRAN. Also, in 6G, the RAN is sometimes called 6GRAN. In W-CDMA (UMTS), the RAN is sometimes called UTRAN.

[0333] LTE communication equipment 110 may be referred to as eNodeB (Evolved Node B) or eNB. In this case, EUTRAN includes one or more eNodeBs (eNBs). NR communication equipment 110 may be referred to as gNodeB or gNB. In this case, NGRAN includes one or more gNBs. 6G base stations may be referred to as 6GNodeB, 6gNodeB, 6GNB, or 6gNB. In this case, 6GRAN includes one or more 6GNBs. EUTRAN may include gNBs (en-gNBs) connected to the core network (EPC) in the LTE communication system (EPS). NGRAN may include ng-eNBs connected to the core network 5GC in the 5G communication system (5GS).

[0334] If the communication device 110 is an eNB, gNB, 6GNB, etc., the communication device 110 may be referred to as 3GPP Access. If the communication device 110 is an Access Point, the communication device 110 may be referred to as Non-3GPP Access. The communication device 110 may also be an optical extension device called an RRH (Remote Radio Head). If the communication device 110 is a gNB, the communication device 110 may be a combination of the gNB-CU and gNB-DU described above, or it may be either a gNB-CU or a gNB-DU.

[0335] Here, the gNB-CU hosts several upper layers of the Access Stratum (e.g., RRC (Radio Resource Control), SDAP (Service Data Adaptation Protocol), and PDCP (Packet Data Convergence Protocol)) for communication with the UE. On the other hand, the gNB-DU hosts several lower layers of the Access Stratum (e.g., RLC (Radio Link Control), MAC (Medium Access Control), and PHY (Physical layer)). That is, among the messages / information described later, RRC signaling (quasi-static notifications) may be generated by the gNB-CU, while MAC CE and DCI (dynamic notifications) may be generated by the gNB-DU. Alternatively, among the RRC configuration (quasi-static notifications), some configurations, such as IE:cellGroupConfig, may be generated by the gNB-DU, and the remaining configurations may be generated by the gNB-CU. These configurations may be sent and received via the F1 interface described later.

[0336] The communication device 110 may be configured to communicate with other base stations. If multiple communication devices 110 are eNBs or a combination of eNB and en-gNB, these communication devices 110 may be connected by an X2 interface. If multiple communication devices 110 are gNBs or a combination of gn-eNB and gNB, these communication devices 110 may be connected by an Xn interface. If multiple communication devices 110 are a combination of gNB-CU and gNB-DU, these communication devices 110 may be connected by the F1 interface described above. Messages / information described later (e.g., RRC signaling, MAC CE (MAC Control Element), or DCI (Downlink Control Information), etc.) may be transmitted between multiple communication devices 110, for example, via the X2 interface, Xn interface, or F1 interface.

[0337] Cells provided by communication device 110 are sometimes called Serving Cells. The concept of a Serving Cell includes PCell (Primary Cell) and SCell (Secondary Cell). When dual connectivity is provided to terminal 120, the PCell provided by MN (Master Node) and zero or one or more SCells are sometimes called a Master Cell Group. Examples of dual connectivity include EUTRA-EUTRA Dual Connectivity, EUTRA-NR Dual Connectivity (ENDC), EUTRA-NR Dual Connectivity with 5GC, NR-EUTRA Dual Connectivity (NEDC), and NR-NR Dual Connectivity. Further examples of Dual Connectivity include NR-6G Dual Connectivity and 6G-NR Dual Connectivity.

[0338] A serving cell may include a PSCell (Primary Secondary Cell, or Primary SCG Cell). When dual connectivity is provided to terminal 120, the PSCell provided by the SN (Secondary Node) and zero or one or more SCells are sometimes referred to as an SCG (Secondary Cell Group). Unless otherwise specified (e.g., PUCCH on SCell), the physical uplink control channel (PUCCH) is transmitted by PCells and PSCells, but not by SCells. Radio link failures are detected by PCells and PSCells, but not by SCells (and do not need to be detected). Because PCells and PSCells play special roles within a serving cell, they are also called SpCells (Special Cells).

[0339] A single cell may be associated with one downlink component carrier and one uplink component carrier. The system bandwidth corresponding to a single cell may be divided into multiple Bandwidth Parts (BWPs). In this case, one or more BWPs may be configured on the terminal 120, and one BWP may be used by the terminal 120 as the active BWP. The radio resources available to the terminal 120, such as frequency band, numerology (subcarrier spacing), or slot configuration, may differ for each cell, each component carrier, or each BWP.

[0340] <3-3. Terminal Configuration> Terminal 120 is a communication device (wireless system) that communicates wirelessly with other devices. Terminal 120 is a type of information processing device.

[0341] The terminal 120 in this embodiment is typically a mobile communication device. A mobile communication device is a portable wireless communication device (i.e., a portable / mobile wireless communication device). For example, a mobile communication device is a communication device that can fly (aerial communication device). Alternatively, a mobile communication device is a communication device that can travel on the ground (mobile communication device). In the following description, not only mobile wireless communication devices but also portable wireless communication devices will be referred to as mobile communication devices.

[0342] Furthermore, if terminal 120 is a mobile communication device, terminal 120 may be a wireless communication device installed on a mobile body, or it may be the mobile body itself. Terminal 120 may be a vehicle that moves on roads, such as an automobile, bus, truck, or motorcycle, or it may be a wireless communication device mounted on such a vehicle. The mobile body may be a mobile terminal, or it may be a mobile body that moves on land (ground in the narrow sense), underground, on water, or underwater. The mobile body may also be a mobile body that moves within the atmosphere, such as an aircraft, airship, balloon, or helicopter, or it may be a mobile body that moves outside the atmosphere, such as an artificial satellite. The mobile body may also be a UAV (Unmanned Aerial Vehicle) such as a drone. Furthermore, terminal 120 may be a wireless communication device mounted on a mobile body.

[0343] Terminal 120 may be other non-terrestrial communication equipment (non-terrestrial station). Non-terrestrial communication equipment is communication equipment capable of floating in the air or space. In this case, terminal 120 may be an aircraft station or a satellite station.

[0344] An aircraft station is a radio communication device capable of floating within the atmosphere of an aircraft or other similar vessel. An aircraft station may be a device mounted on an aircraft or the aircraft itself. The concept of an aircraft includes not only heavy aircraft such as airplanes or gliders, but also light aircraft such as balloons or airships. The concept of an aircraft also includes not only heavy or light aircraft, but also rotary-wing aircraft such as helicopters or autogyros. An aircraft station, or an aircraft on which an aircraft station is mounted, may also be an unmanned aerial vehicle such as a drone.

[0345] The concept of unmanned aerial vehicles includes unmanned aircraft systems (UAS) and tethered UAS. It also includes lighter than air UAS (LTA) and heavier than air UAS (HTA). Furthermore, it includes high-altitude UAS platforms (HAPs).

[0346] A satellite station is a satellite station capable of floating outside the atmosphere. A satellite station may be a device mounted on a space vehicle such as an artificial satellite, or it may be the space vehicle itself. A space vehicle is a vehicle that moves outside the atmosphere. Examples of space vehicles include artificial satellites, spacecraft, space stations, or artificial celestial bodies such as probes. The satellite that becomes a satellite station may be a low Earth orbit (LEO) satellite, a medium Earth orbit (MEO) satellite, a geostationary Earth orbit (GEO) satellite, or a highly elliptical orbit (HEO) satellite. A satellite station may be a device mounted on a low Earth orbit satellite, a medium Earth orbit satellite, a geostationary satellite, or a highly elliptical orbit satellite.

[0347] Furthermore, terminal 120 can employ any form of information processing device (computer). For example, terminal 120 may be a mobile device such as a mobile phone, smart device (smartphone or tablet), PDA (Personal Digital Assistant), or notebook PC. Terminal 120 may also be an imaging device equipped with communication functions (e.g., a camcorder). Terminal 120 may also be a motorcycle or mobile broadcast vehicle equipped with communication equipment such as an FPU (Field Pickup Unit). Terminal 120 may also be a wearable device such as a smartwatch.

[0348] Furthermore, terminal 120 may be an xR device such as an AR (Augmented Reality) device, a VR (Virtual Reality) device, or an MR (Mixed Reality) device. In this case, the xR device may be a glasses-type device such as AR glasses or MR glasses, or a head-mounted device such as a VR head-mounted display. When terminal 120 is an xR device, terminal 120 may be a standalone device consisting only of a user-worn part (e.g., a glasses part). Alternatively, terminal 120 may be a terminal-linked device consisting of a user-worn part (e.g., a glasses part) and a terminal part (e.g., a smart device) that works in conjunction with that part.

[0349] Note that terminal 120 is not limited to a movable communication device (portable / mobile communication device). Terminal 120 may be a fixed communication device installed in a structure. Terminal 120 may also be a sensor installed in factory machinery or a building, such as in so-called MTC (Machine Type Communication). In the example in Figure 7, terminal 120 is a fixed communication device.

[0350] Furthermore, terminal 120 may be an M2M (Machine to Machine) device or an IoT (Internet of Things) device. Terminal 120 may also be a device equipped with relay communication functionality, such as D2D or V2X (Vehicle to Everything). Terminal 120 may also be a device called CPE (Customer Premises Equipment) used in wireless backhaul, etc. Additionally, the communication device 110 described later can also be considered a type of terminal 120. The information processing device 200 described later can also be considered a type of terminal 120, provided it has communication functionality.

[0351] Terminal 120 may be capable of NOMA (Non-Orthogonal Multiple Access) communication with communication device 110. Terminal 120 may use automatic retransmission technology such as HARQ (Hybrid ARQ (Automatic Repeat reQuest)) when communicating with other devices. Terminal 120 may be capable of sidelink communication with other terminals 120. Terminal 120 may use automatic retransmission technology such as HARQ when performing sidelink communication. Terminal 120 may be capable of NOMA communication when performing sidelink communication with other terminals 120. Terminal 120 may be capable of LPWA (Low Power Wide Area) communication with other wireless communication devices such as communication device 110. The wireless communication used by terminal 120 may be wireless communication using millimeter waves. The wireless communication used by terminal 120, including sidelink communication, may be wireless communication using radio waves, or wireless communication using infrared or visible light, i.e., optical wireless communication.

[0352] Terminal 120 may be capable of communicating with multiple communication devices 110 or multiple cells simultaneously. If one communication device 110 supports a communication area via multiple cells (e.g., pCell or sCell), communication between the communication device 110 and terminal 120 can be achieved by bundling these multiple cells using technologies such as carrier aggregation (CA), dual connectivity (DC), or multi-connectivity (MC). Alternatively, communication between terminal 120 and multiple communication devices 110 can be achieved via cells of different communication devices 110 using coordinated multi-point transmission and reception (CoMP) technology.

[0353] Terminal 120 may be a relay terminal that relays communication to a remote terminal. Terminal 120 may be called User Equipment, User Terminal, User Station, Mobile Terminal, Mobile Station, etc. Also, terminal 120 may be called, for example, MTC UE, NB-IoT UE, Cat.M UE. Also, terminal 120 may be called Client Device.

[0354] In this embodiment, unless otherwise specified, terminal 120 is the entity to which a wireless link using a frequency requiring authorization from the information processing device 200 terminates. However, depending on the functions of terminal 120 and the applicable network topology, terminal 120 may operate in the same manner as a communication device. In other words, when implementing the technology disclosed in this embodiment, depending on the network topology, the communication device 110 may be referred to as terminal 120, or terminal 120 may be referred to as communication device 110.

[0355] Figure 11 shows the configuration of a terminal 120 according to an embodiment of the present disclosure. The terminal 120 comprises a wireless communication unit 121, a storage unit 122, and a control unit 123. The configuration shown in Figure 11 is a functional configuration, and the hardware configuration may differ. Furthermore, the functions of the terminal 120 may be implemented in a distributed manner across multiple physically separated configurations.

[0356] The wireless communication unit 121 is a signal processing unit for wireless communication with other wireless communication devices. The wireless communication unit 121 is controlled by the control unit 123. The wireless communication unit 121 supports one or more wireless access methods. The wireless communication unit 121 may support at least one of NR, LTE, and 6G. In addition to NR, LTE, and 6G, the wireless communication unit 121 may support W-CDMA and cdma2000, etc. The wireless communication unit 121 may support automatic retransmission technologies such as HARQ (Hybrid Automatic Repeat reQuest).

[0357] Furthermore, the wireless communication unit 121 may be configured to communicate using wireless access technologies (wireless communication methods) other than LTE, NR, and 6G. For example, the wireless communication unit 121 may be configured to support Wi-Fi® and Bluetooth®. Also, the terminal 120 may be configured to communicate using LPWA (Low Power Wide Area) communication. In addition, the terminal 120 may be configured to communicate using a proprietary wireless communication standard.

[0358] Here, LPWA communication refers to wireless communication that enables low-power, wide-area communication. For example, LPWA wireless refers to IoT (Internet of Things) wireless communication using specified low-power radio (e.g., 920MHz band) or ISM (Industry-Science-Medical) band. The LPWA communication used by terminal 120 may also conform to the LPWA standard. Examples of LPWA standards include ELTRES, ZETA, SIGFOX, LoRaWAN, and NB-IoT. Of course, LPWA standards are not limited to these and other LPWA standards may be used.

[0359] The wireless communication unit 121 includes a transmission processing unit 1211, a reception processing unit 1212, and an antenna 1213. The wireless communication unit 121 may include multiple transmission processing units 1211, reception processing units 1212, and antennas 1213. If the wireless communication unit 121 supports multiple wireless access methods, each part of the wireless communication unit 121 may be configured separately for each wireless access method. The transmission processing unit 1211 and the reception processing unit 1212 may be configured separately for LTE, NR, and 6G. The antenna 1213 may be composed of multiple antenna elements, for example, multiple patch antennas. The wireless communication unit 121 may have a beamforming function. For example, the wireless communication unit 121 may have a polarization beamforming function using vertical polarization (V polarization) and horizontal polarization (H polarization) (or a polarization beamforming function using dual polarization in polarization directions of 45 degrees and -45 degrees from the vertical).

[0360] The memory unit 122 is a read / write storage device such as DRAM, SRAM, flash memory, or a hard disk. The memory unit 122 functions as a storage means for the terminal 120.

[0361] The control unit 123 is a controller that controls various parts of the terminal 120. The control unit 123 controls the wireless communication unit 121 to perform wireless communication with other wireless communication devices. The control unit 123 may be implemented by a processor such as a CPU or MPU. More specifically, the control unit 123 may be implemented by the processor executing various programs stored in the internal storage device of the terminal 120 using RAM or the like as a working area. The control unit 123 may be implemented by an integrated circuit such as an ASIC or FPGA. CPUs, MPUs, ASICs, and FPGAs can all be considered controllers. The control unit 123 may be implemented by a GPU. CPUs, MPUs, ASICs, FPGAs, and GPUs can all be considered controllers. The control unit 123 may be composed of multiple physically separated objects. For example, the control unit 123 may be composed of multiple semiconductor chips.

[0362] <<4. Preparations>> <4-1. Division of the frequency control area> The information processing device 200 performs a division process for the frequency management target as a preliminary step for managing frequencies. This division process is performed in advance by the information processing device 200, for example, before the registration procedure for the second communication device 110S is carried out.

[0363] Figure 12 shows an example of the division of the frequency management area according to the embodiment of this disclosure. In the example of Figure 12, the information processing device 200 grids the area to be managed for frequency (corresponding to the target area in Figure 12).

[0364] Here, the "target area" may be the entire territory of the country or region for which the information processing system SYS1 manages frequencies. Alternatively, the "target area" may be determined based on a predetermined administrative division.

[0365] Furthermore, the division of the target area does not necessarily have to be done by regular grid formation. For example, areas where the received power level fluctuates significantly due to the influence of terrain, structures, etc., based on empirical rules, may be divided into a finer grid than other areas. Also, the target area does not need to be divided into a grid such as a square. The target area may be divided into any shape, as long as it is divided in a way that allows for the creation of the cumulative interference power database described later.

[0366] <4-2. Creating and Initializing the Cumulative Interference Power Database> The cumulative interference power database (cumulative interference power DB) is a database that records the calculated value of the cumulative received interference power (also referred to as cumulative interference power) at grid points set according to the division process of the "target area" described above. The cumulative interference power DB is created and initialized in the information recording device 300 by, for example, the information processing device 200.

[0367] Figure 13 shows an example of grid points according to an embodiment of the present disclosure. In Figure 13, for example, the information processing device 200 divides the target region into M*N grid points and calculates the cumulative interference power at each grid point (for example, points P1 to P3). Note that the grid points at which the information processing device 200 calculates the cumulative interference power are not limited to points P1 to P3. For example, the information processing device 200 can calculate the cumulative interference power at all grid points included in the target region.

[0368] The cumulative interference power database records the calculated value of cumulative interference power for each frequency range that the existing system (corresponding to the primary system) may use. For example, if the grid dividing the target region consists of M*N grid points, the calculated value recorded in the cumulative interference power database can be described using a matrix as shown in equation (4) below.

[0369]

number

[0370] C Incumbent This indicates the identifier of a frequency channel that the existing system may use. mn (C Incumbent ) (mW) is frequency channel C Incumbent This is the calculated value (in mW) of the cumulative received interference power at grid coordinates (m,n) (where m is between 1 and M, and n is between 1 and N).

[0371] The initial value when building a database is, in principle, zero (I mn (C Incumbent ) (mW) This will result in (=0). The case where the initial value is not zero will be discussed later.

[0372] <<5. Procedures and Steps>> The following describes the procedures and / or steps performed in the information processing system SYS1 according to the embodiment of this disclosure. Note that descriptions of the same processes as those described in <2-3. Basic Processing of Information Processing System SYS1>, etc., will be omitted.

[0373] In the information processing system SYS1 according to this embodiment, as described above, at least the following processes are performed before the second communication device 110S starts transmitting radio waves. - Registration procedure - Procedures for granting frequency usage rights - Frequency usage notification / authentication / heartbeat procedure

[0374] <5-1. Information Processing in Granting Frequency Usage Rights> For example, in the frequency usage rights granting procedure, the information processing device 200 performs the process of determining the allocated frequency based on the cumulative interference power DB, and the process of updating the cumulative interference power DB. Note that the determination and update processes only need to be performed at the latest during the frequency usage rights granting procedure, and do not necessarily need to be performed during the frequency usage rights granting procedure. For example, some or all of the processes described here may be performed at the registration procedure stage as part of the registration permission determination.

[0375] The second communication device 110S may perform a registration procedure with the information processing device 200, for example, so that the second communication device 110S is mapped into the "target area" described above.

[0376] Figure 14 shows an example of mapping of a second communication device 110S according to an embodiment of the present disclosure. For example, when the second communication device 110S performs a registration procedure, the information processing device 200 can map the second communication device 110S to a target area divided by a grid.

[0377] Figure 15 shows an example of a target area according to the embodiment of this disclosure. As shown in Figure 15, the target area to which the second communication device 110S is mapped can be divided into, for example, the following three areas. - Coverage area R10 - Interference area R20 - Non-interference area R30

[0378] (Coverage Area R10) Coverage area R10 is a communication service area coverage provided by the second communication device 110S. The second communication device 110S provides communication services to the second terminal 120S within coverage area R10.

[0379] Note that in Figure 15, the coverage area R10 is shown as a circle for convenience, but the actual coverage area R10 can take on various shapes.

[0380] For example, if the scope of a license is predetermined by licensing regulations, it is desirable that that area be treated as a communication service area coverage, i.e., coverage area R10.

[0381] Figure 16 is a diagram illustrating the Shared Access License system established by Ofcom in the UK. As shown in Figure 16, the scope of the license's effect is defined in the Shared Access License system established by Ofcom in the UK. It should be noted that systems similar to the one shown in Figure 16, defining the scope of license effect, are established in many countries and regions, not just the UK.

[0382] Furthermore, coverage area R10 may be an area where sufficient signal power for providing communication services is expected to be available. "Sufficient signal power" means, for example, that the estimated value of the received power level when the second terminal 120S receives radio waves emitted by the second communication device 110S is equal to or greater than a predetermined value.

[0383] (Interference area R20) Interference area R20 is an area where interference from the second communication device 110S may occur. By considering interference area R20, it is expected that the information processing device 200 will be able to manage the cumulative interference power so as not to exceed the allowable limit of the primary system outside of coverage area R10.

[0384] The interference area R20, which manages the cumulative interference power, is, for example, an area where sufficient signal power cannot be obtained from the second communication device 110S. In the interference area R20, cumulative interference power may be generated by the accumulation of signals emitted by other second communication devices 110S that are installed and deployed later.

[0385] By taking into account the cumulative interference power in the interference area R20, the information processing apparatus 200 can manage the radio wave emission of the second communication apparatus 110S so as not to cause interference exceeding the tolerance value to the first communication apparatus 110P and / or the first terminal 120P.

[0386] It is desirable that the interference area R20 is an area where the radio wave emitted by the second communication apparatus 110S can be received by the second terminal 120S with a certain signal power. That is, in the interference area R20, the second terminal 120S cannot receive the radio wave from the second communication apparatus 110S with sufficient signal power, but can receive it with a certain signal power.

[0387] In the present embodiment, the information processing apparatus 200 calculates the single-cell interference power (I m’,n’(mW) ) for the grid points (black circles in FIG. 15) in the interference area R20. The information processing apparatus 200 performs frequency use right granting and cumulative interference power DB update processing based on the calculation result of the single-cell interference power.

[0388] The single-cell interference power (I m’,n’(mW) ) is replaced by the following formula (5).

[0389]

Equation

[0390] Note that P MaxEirp(dBm) is the maximum EIRP of the second communication apparatus 110S. L m’,n’(dB) is the propagation loss between the second communication apparatus 110S and the grid point (m’, n’). G Rx(dB) is the assumed value of the receiving antenna gain for the first communication apparatus 110P and / or the first terminal 120P.

[0391] The tolerance value of the first communication apparatus 110P and / or the first terminal 120P is I Th(mW)In this case, if the conditions shown in the following equation (6) are met, the information processing device 200 will set frequency channel C for the first communication device 110P and / or the first terminal 120P. Incumbent,x Regarding this, it is determined that frequency usage rights can be granted to the second communication device 110S.

[0392]

number

[0393] Note that x is the channel index, and it is assumed that X frequency channels are pre-configured, i.e., channelization is defined.

[0394] Frequency channel C Incumbent,x If the above condition (6) is not met, the information processing device 200 will calculate the single-station interference power (I m’,n’(mW) The transmission power value used in the calculation of ) is a predetermined value ΔP (dB) You can lower the value and perform the condition check again.

[0395] In other words, the information processing device 200 processes P based on the following equation (7). MaxEirp(dBm) The system is updated to determine whether or not frequency usage rights can be granted.

[0396]

number

[0397] Alternatively, frequency channel C Incumbent,x If the conditions of equation (6) above are not met, the information processing device 200 will use another frequency channel C ’Incumbent,x The same calculation may be performed for this, and a determination may be made as to whether frequency usage rights can be granted.

[0398] Another frequency channel C ’Incumbent,x When calculating about I m’n’(mW)Strictly speaking, it is desirable to recalculate for each frequency channel. For example, if the difference in calculated values ​​due to the frequency dependence of the propagation loss estimate is of a magnitude that can be ignored, the information processing device 200 will recalculate the same I even if it is a different frequency channel. m’n’(mW) You may also use this method to determine whether frequency usage rights can be granted.

[0399] The conditional determination described herein may be applied to registration procedures and / or available frequency inquiry procedures. For example, in the registration procedure, when the information processing device 200 receives a registration request, it may perform the above conditional determination for all frequency channels.

[0400] The information processing device 200 may reject registration if the above inequality (6) is not satisfied in all frequency channels. That is, the information processing device 200 permits registration if the above inequality (6) is satisfied in at least one frequency channel.

[0401] For example, the information processing device 200 may perform a calculation similar to the calculation described above in the available frequency inquiry procedure and generate available frequency information that includes all frequency channels that satisfy the above inequality (6). The information processing device 200 may, for example, provide the generated available frequency information to the second communication device 110S.

[0402] Here, for example, suppose a frequency usage rights grant request is sent from the second communication device 110S to the information processing device 200 using a specified method that specifies the transmission power, frequency range, etc. In this case, the information processing device 200 determines based on the specified transmission power I m’n’(mW) Calculate.

[0403] Furthermore, the information processing device 200 controls the specified frequency range (f req,start Above, f req,stop The frequency channel C included in the following) Incumbent,xThe above conditional expression (6) is used to determine the value of the value. If the specified frequency range includes multiple frequency channels, the information processing device 200 uses the above conditional expression (6) to determine all of the included frequency channels.

[0404] Figure 17 shows an example of a frequency range according to an embodiment of this disclosure. For example, if no frequency range is specified, the information processing device 200 will use frequency channel C Incumbent,1 ~C Incumbent,6 The frequency channel is used as the target frequency channel for conditional judgment, and decisions are made regarding the granting of frequency usage rights, etc.

[0405] On the other hand, if a frequency range is specified by the second communication device 110S, the information processing device 200 will select a frequency channel C that overlaps with the specified frequency range in at least part. Incumbent,x The frequency channel is used as the target frequency channel for conditional judgment, and decisions are made regarding the granting of frequency usage rights, etc.

[0406] In the example in Figure 17, f req,start f req,stop A frequency range is specified. In this case, the information processing device 200 uses frequency channel C Incumbent,1 Excluding frequency channel C Incumbent,2 ~C Incumbent,6 The frequency channel to be used for conditional judgment is used to determine whether to grant frequency usage rights. In other words, in the example in Figure 17, the index x of the frequency channel for which the information processing device 200 determines whether to grant frequency usage rights is between 2 and 6.

[0407] If the specified frequency range partially overlaps with a certain frequency channel, it is desirable for the information processing device 200 to consider the partial overlap when determining the above condition. In the example in Figure 17, frequency channel C Incumbent,5 This partially overlaps with the specified frequency range.

[0408] Alternatively, the information processing device 200 may, without considering partial overlap, consider frequency channel C Incumbent,5 The condition can be checked assuming that all values ​​fall within the specified frequency range.

[0409] Assume that a frequency usage rights grant request is transmitted from the second communication device 110S to the information processing device 200 using a flexible method. In this case, the information processing device 200 will determine the frequency channel C that satisfies the above condition (6). Incumbent,avail The information processing device 200 identifies the identified frequency channel C. Incumbent,avail Based on this, communication parameters that match the requirements information included in the request are derived. Examples of communication parameters derived by the information processing device 200 include the frequency range and the maximum transmission power.

[0410] For example, the information processing device 200 may approve a frequency usage rights granting request as a result of information processing, regardless of the designated method or flexible method described above. In this case, the information processing device 200 performs the process of updating the cumulative interference power database.

[0411] During the update process, the information processing device 200 controls frequency channel C Incumbent,x The calculated cumulative interference power at each grid point for is updated based on the following equation (8). Note that the frequency channel C here is Incumbent,x This is included in the frequency range that has been decided to be allocated to the second communication device 110S.

[0412]

number

[0413] For example, in Figure 17, the information processing device 200 is f req,start f req,stop Let's assume that this is determined to be the frequency range to be allocated to the second communication device 110S. In this case, the information processing device 200 performs cumulative interference power DB update processing for frequency channels with index x 2, 3, 4, 5 and 6.

[0414] Furthermore, it is desirable that the information processing device 200 according to this embodiment acquires and stores information regarding the area corresponding to the coverage area R10 in advance. This information may be stored by the information processing device 200 or by the information recording device 300.

[0415] For example, Figure 15 shows a scenario in which there are no other second communication devices 110S around the second communication device 110S. However, in reality, there are also scenarios in which other second communication devices 110S exist around the second communication device 110S. In this case, the information processing device 200 is required to perform protection processing to protect the second communication device 110S that already has usage rights from a second communication device 110S that later requests to acquire usage rights (hereinafter also referred to as a later second communication device 110S).

[0416] In order to perform this protection process, it is desirable that the information processing device 200 acquires and retains information in advance regarding the area corresponding to the coverage area R10 of the second communication device 110S.

[0417] The information processing device 200 may treat the area corresponding to this coverage area R10 as an Exclusion Zone to be applied to a later second communication device 110S. The information processing device 200 may also separately construct a cumulative interference power DB for the coverage area R10 of the second communication device 110S for the purpose of adjusting interference between the second communication devices 110S.

[0418] <5-2. Information Processing in Frequency Usage Notification / Authentication / Heartbeat> As described above, after receiving a frequency usage notification from the second communication device 110S, the information processing device 200 determines whether to start or continue frequency usage (in other words, radio wave transmission on the permitted frequency). For example, the information processing device 200 performs the determination process for starting or continuing frequency usage as part of the information processing in frequency usage notification / authentication / heartbeat. The frequency usage notification may also be transmitted from the intermediate device 130 acting on behalf of the second communication device 110S.

[0419] This determination process is performed based on frequency usage information of the primary system (specifically, for example, the first communication device 110P and / or terminal 120P) notified by the information notification device 400.

[0420] In this embodiment, the information processing device 200 performs a determination process for a second communication device 110S (hereinafter also referred to as the target communication device) whose authorized frequency range overlaps with at least a portion of the frequency channels used by the primary system.

[0421] The information processing device 200, for example, refers to the operating area information of the primary system and determines whether the second communication device 110S is the target communication device, that is, whether to perform a determination process for the second communication device 110S. This operating area information includes, for example, information about the frequency channels used by the primary system.

[0422] The information processing device 200 performs a determination process by comparing the coverage area R10 and interference area R20 of the target communication device with the operating area information of the primary system.

[0423] Figure 18 is a diagram illustrating an example of a determination process according to the embodiment of this disclosure. Figure 18 shows an example in which at least a portion of the operating area R40 of the primary system overlaps with the coverage area R10 of the target communication device.

[0424] In this case, the information processing device 200 determines that it is not possible to start or continue transmitting radio waves from the target communication device.

[0425] In other words, the decision and update processes described in <5-1. Information Processing in Frequency Usage Rights Granting> in the cumulative interference power DB records do not take into account interference within the coverage area R10 of the second communication device 110S.

[0426] Therefore, if at least a portion of the coverage area R10 of the target communication device overlaps with the operating area R40 of the primary system, the emission of radio waves by the target communication device could have a significant impact on the primary system's communications.

[0427] Therefore, the information processing device 200 determines that if at least a portion of the coverage area R10 of the target communication device overlaps with the operating area R40 of the primary system, it is not possible to start or continue transmitting radio waves from the target communication device.

[0428] Figure 19 is a diagram illustrating another example of the determination process according to the embodiment of this disclosure. Figure 19 shows an example in which the operating area R40 of the primary system does not overlap with the coverage area R10 of the target communication device. In other words, the operating area R40 overlaps with the non-interference area R30 and does not overlap with the coverage area R10 and the interfering area R20.

[0429] In this case, the likelihood of the radio wave emission from the target communication device affecting the primary system's communication is low. Therefore, the information processing device 200 determines that the target communication device can start or continue emitting radio waves.

[0430] Figure 20 is a diagram illustrating another example of the determination process according to the embodiment of this disclosure. Figure 20 shows an example in which at least a portion of the operating area R40 of the primary system overlaps with the interference area R20 of the target communication device. In other words, the operating area R40 overlaps with the non-interference area R30 and the interference area R20, but does not overlap with the coverage area R10.

[0431] In this case, the information processing device 200 determines that it is possible to start or continue transmitting radio waves from the target communication device.

[0432] According to the cumulative interference power DB records, in interference area R20, the cumulative interference power is managed by the information processing device 200 to ensure that it does not exceed the baseline value at all times, based on the decision processing and update processing described in <5-1. Information Processing in Granting Frequency Usage Rights>. Therefore, if at least a portion of interference area R20 overlaps with at least a portion of the operating area R40, the likelihood of the target communication device emitting radio waves having a significant impact on the primary system's communication is low.

[0433] Therefore, the information processing device 200 determines that if at least a portion of the interference area R20 of the target communication device overlaps with the operating area R40 of the primary system, it is possible for the target communication device to start or continue transmitting radio waves.

[0434] In other words, if at least a portion of the interference area R20 of the target communication device overlaps with the operating area R40 of the primary system, the information processing device 200 determines whether or not the target communication device can start or continue transmitting radio waves, according to the cumulative interference amount in the interference area R20.

[0435] Furthermore, if the primary system's operating area information is not valid, or if valid operating area information is not notified from the information notification device 400, the information processing device 200 may determine that the target communication device can start or continue transmitting radio waves.

[0436] <5-3. Example of processing by the second communication device> Depending on the result of the determination process for whether or not to start or continue using the frequency as described above, the information processing device 200 may request the second communication device 110S to stop transmitting radio waves.

[0437] In this case, the second communication device 110S may be notified to stop transmitting radio waves in the entire frequency range for which it has been authorized.

[0438] Alternatively, the second communication device 110S may stop transmitting radio waves in the frequency ranges for which it has been authorized that overlap with the frequency channels used by the primary system (an example of a third frequency range).

[0439] For example, the second communication device 110S performs frequency resource muting for frequency ranges that overlap with the frequency channels used by the primary system. Meanwhile, the second communication device 110S continues to transmit radio waves using frequency ranges that do not overlap with the frequency channels used by the primary system (e.g., non-overlapping frequency resources).

[0440] In this case, the information processing device 200 may also notify the second communication device 110S, which is subject to the suspension of radio wave transmission, of the frequency range that is subject to the suspension of transmission.

[0441] Furthermore, the information processing device 200 may notify the second communication device 110S of the frequency range subject to the suspension of radio wave transmission in a manner based on the security and / or privacy requirements of each device of the primary system (specifically, the first communication device 110P and / or the second terminal 120P).

[0442] For example, if it is not necessary to conceal the frequencies used by the primary system, the information processing device 200 may notify all second communication devices 110S that are subject to the cessation of radio wave transmission of a list of the frequency channels used by the primary system.

[0443] In this case, the second communication device 110S, upon receiving the notification, identifies a frequency range from the list that does not overlap with the primary system's operating frequency channel (e.g., a non-overlapping frequency resource). The second communication device 110S then initiates or continues radio transmission using the identified non-overlapping frequency resource.

[0444] For example, if the frequencies used by the primary system need to be kept confidential, the information processing device 200 notifies the second communication device 110S, which is subject to the cessation of radio wave transmission, of a frequency range that does not overlap with the frequency channels used by the primary system (e.g., non-overlapping frequency resources).

[0445] At this time, the information processing device 200 identifies a frequency range (e.g., a non-overlapping frequency resource) that does not overlap with the frequency channel used by the primary system for each second communication device 110S. The information processing device 200 notifies the corresponding second communication device 110S of the identified frequency range. Upon receiving the notification, the second communication device 110S starts or continues radio wave transmission using the resources in the frequency range included in the notification.

[0446] This allows the information processing device 200 to notify the second communication device 110S of the available frequency range, even when it is more difficult to accurately identify the frequency channels used by the primary system.

[0447] Here, Figure 21 is a diagram showing an example of frequency resources used by a second communication device 110S according to an embodiment of the present disclosure. Figure 21 shows an example of frequency resources when the second communication device 110S is a 4G / 5G base station.

[0448] As shown in Figure 21, in 4G / 5G, multiple Physical Resource Blocks (PRBs) are defined according to the channel bandwidth. PRBs are configured, for example, in multiple frequency ranges (Transmission Bandwidth Configuration) obtained by subtracting the guard band from the channel bandwidth.

[0449] Figure 22 shows another example of frequency resources used by the second communication device 110S according to an embodiment of the present disclosure. Figure 22 shows an example of frequency resources used when the second communication device 110S receives notification from the information processing device 200 of the frequency range R50 to which radio wave transmission is to be stopped.

[0450] For example, a second communication device 110S that has received notification of the frequency range R50 subject to the suspension of radio wave transmission will identify a frequency range that does not overlap with frequency range R50 and communicate using the PRB in the identified frequency range.

[0451] In other words, the second communication device 110S can communicate by muting PRBs that overlap, at least partially, with the frequency range R50, which is subject to the cessation of radio wave transmission, among a plurality of PRBs defined according to the channel bandwidth.

[0452] <<6. Processing Example>> Figure 23 is a sequence diagram showing an example of the communication processing flow according to the present disclosure. The communication processing in Figure 23 is performed, for example, between the information processing device 200 and the second communication device 110S of the communication system. Although the intermediate device 130 is not shown in Figure 23, the communication processing may be performed via the intermediate device 130.

[0453] First, the information processing device 200 divides the region to be managed by frequency control (step S101). The information processing device 200 also creates and initializes the cumulative interference power database (step S102).

[0454] Next, a registration procedure is performed between the information processing device 200 and the second communication device 110S (step S103). For example, the information processing device 200 performs the registration procedure in accordance with a request from the second communication device 110S.

[0455] A frequency usage authority granting procedure, including a decision process and an update process, is performed between the information processing device 200 and the second communication device 110S (step S104). The frequency usage authority granting procedure is performed, for example, in accordance with a request from the second communication device 110S.

[0456] The information processing device 200 performs, for example, as part of the frequency usage rights granting procedure, the process of determining the allocated frequency based on the cumulative interference power DB and the process of updating the cumulative interference power DB. For example, the information processing device 200 updates the calculated value of the cumulative interference power of the interference area R20 of the second communication device 110S.

[0457] Furthermore, the information processing device 200 determines a frequency range that does not overlap with the frequency channels used by the primary system (e.g., non-overlapping frequency resources) and generates available frequency information. The information processing device 200 notifies the second communication device 110S of the generated available frequency information.

[0458] A frequency usage notification / authentication / heartbeat procedure is performed between the information processing device 200 and the second communication device 110S (step S105). This procedure is performed, for example, in response to a request from the second communication device 110S. Alternatively, this procedure may be performed when the information notification device 400 notifies the primary system of its operating area information.

[0459] As part of this procedure, the information processing device 200 performs a determination process to determine whether the second communication device 110S can start or continue using the frequency. The information processing device 200 performs a determination process to determine whether the frequency can start or continue using the frequency (in other words, whether the radio wave transmission can start or continue) according to the operating area information of each device in the primary system and the area information of the second communication device 110S.

[0460] The information processing device 200 obtains operational area information from the primary system via the information notification device 400, for example, during or before the execution of this determination process. The area information of the second communication device 110S includes, for example, information regarding the coverage area R10 and interference area R20 of the second communication device 110S. The information notification device 400 obtains the area information of the second communication device 110S from the second communication device 110S (or the core network of the secondary system or the administrator of the secondary system, etc.), for example, during or before the execution of this determination process.

[0461] For example, if the frequency range to which the second communication device 110S has been authorized overlaps with at least a portion of the frequency channels used by the primary system, the information processing device 200 performs a determination process to determine whether frequency use can be started or continued.

[0462] As part of this determination process, the information processing device 200 determines, for example, that if at least a portion of the operating area of ​​the primary system and at least a portion of the coverage area R10 of the second communication device 110S overlap, it is not possible to start or continue transmitting radio waves.

[0463] Furthermore, if, for example, at least a portion of the operating area of ​​the primary system and at least a portion of the interference area R20 of the second communication device 110S overlap, the information processing device 200 may refer to the cumulative interference power DB to determine whether to start or continue radio wave transmission. In other words, in this case, the information processing device 200 determines whether to start or continue radio wave transmission according to the interference that the second communication device 110S inflicts on the primary system in the interference area R20 (more specifically, the cumulative amount of interference (cumulative interference power) that one or more second communication devices 110S inflict on the primary system).

[0464] For example, if the cumulative interference power in the interference area R20 is below a predetermined threshold (for example, the reference value mentioned above), the information processing device 200 determines that it is possible to start or continue radio wave transmission.

[0465] On the other hand, if the cumulative interference power in the interference area R20 is greater than a predetermined threshold, the information processing device 200 determines that it is impossible to start or continue radio wave transmission. Alternatively, the information processing device 200 may specify the transmission power so that the cumulative interference power does not exceed a predetermined threshold, and determine that it is possible to start or continue radio wave transmission of the second communication device 110S.

[0466] Furthermore, as described above, if the cumulative interference power is managed to stay below a standard value based on the decision process and update process, the information processing device 200 can determine whether the second communication device 110S can start or continue transmitting radio waves without referring to the cumulative interference power DB.

[0467] If the information processing device 200 determines that it is possible to start or continue transmitting radio waves, the second communication device 110S transmits radio waves (step S106).

[0468] Although not shown in Figure 23, if the information processing device 200 determines that it is not possible to start or continue transmitting radio waves, the second communication device 110S will not transmit radio waves.

[0469] As described above, the information processing device 200 according to the embodiment of this disclosure determines whether or not to start or continue radio wave transmission according to the operating area information and the area information of the second communication device 110S. This allows the communication system to communicate using frequency sharing technology, even if, for example, the operating area of ​​the primary system and the coverage area R10 of the secondary system may overlap.

[0470] <<7. Other Embodiments>> The configurations and / or processes according to the above embodiments may be implemented in various other forms besides those described above.

[0471] In the embodiments described above, the first communication device 110P and / or the first terminal 120P belong to the primary system, but the invention is not limited to this. The first communication device 110P and / or the first terminal 120P may belong to the secondary system.

[0472] Figure 24 shows an example of the configuration of a communication system according to another embodiment of this disclosure. In the communication system of Figure 24, the same reference numerals are used for components that are the same as those in the communication system of Figure 8, and their descriptions may be omitted.

[0473] In the communication system shown in Figure 24, the first terminals 120P-1 and 120P-2 are connected to the second communication device 110S-1. In other words, the first terminals 120P-1 and 120P-2 are protected as PS / PPDR etc., and can normally behave as served terminals of the second communication device 110S-1.

[0474] Furthermore, the first terminals 120P-1 and 120P-2 may also function as information notification devices 400. That is, the first terminals 120P-1 and 120P-2 can behave as information notification devices 400.

[0475] Now, let's assume that the first terminal 120P-1 initiates communication as the primary system. In this case, the first terminal 120P-1, acting as an information notification device 400, notifies the information processing device 200 of the operating area information.

[0476] Figure 25 shows an example of an operating area R40 according to another embodiment of the present disclosure. In Figure 25, at least a portion of the operating area R40 of the first terminal 120P-1 overlaps with at least a portion of the coverage area R10-1 and at least a portion of the interference area R20-1 of the second communication device 110S-1. In addition, at least a portion of the operating area R40 of the first terminal 120P-1 overlaps with at least a portion of the coverage area R10-2 and at least a portion of the interference area R20-2 of the second communication device 110S-2.

[0477] The first terminal 120P-1 notifies the information processing device 200 of the operational area information, including information regarding operational area R40.

[0478] Suppose the information processing device 200, upon receiving this notification, performs the information processing described above in the frequency usage notification / authentication / heartbeat. In this case, according to the embodiment described above, the information processing device 200 determines to stop the radio wave transmission of the second communication devices 110S-1 and 110S-2.

[0479] However, in this case, the second communication device 110S-1 corresponds to the serving base station of the first terminal 120P-1. Therefore, if the second communication device 110S-1 stops transmitting radio waves, there is a risk that it will not be able to serve the first terminal 120P-1 (in other words, the first terminal 120P-1 will not be able to continue communication).

[0480] Therefore, for example, the information processing device 200 may prevent the second communication device 110S-1 serving the first terminal 120P-1 from stopping its radio wave transmission.

[0481] For example, the first terminal 120P-1, acting as an information notification device 400, notifies the information processing device 200 of service information regarding a second communication device 110S-1 that may serve it.

[0482] The information processing device 200, for example, based on the serve information, excludes the second communication device 110S-1 from the target of the determination process for whether frequency use can be started or continued in frequency use notification / authentication / heartbeat. In other words, the information processing device 200 determines that it is possible for the second communication device 110S to start or continue transmitting radio waves, regardless of the area information of the operating area R40 and / or the second communication device 110S-1. The area information of the second communication device 110S-1 includes, for example, information regarding coverage area R10-1 and / or information regarding interference area R20-1.

[0483] As a result, the first terminal 120P-1 can communicate via the second communication device 110S-1 even when operating as the primary system.

[0484] Figure 26 is a sequence diagram showing an example of the flow of communication processing according to another embodiment of this disclosure. Prior to the start of the communication processing in Figure 26, the procedures in steps S101 to S104 of Figure 23 are assumed to have been executed. In addition, although the intermediate device 130 is not shown in Figure 26, the communication processing may be performed via the intermediate device 130.

[0485] As shown in Figure 26, the second communication device 110S-1 performs a frequency usage notification / authentication / heartbeat procedure with the information processing device 200 (step S201). As a result of this procedure, the second communication device 110S-1 starts transmitting radio waves (step S202).

[0486] Similarly, the second communication device 110S-2 performs frequency usage notification / authentication / heartbeat procedures with the information processing device 200 (step S203). As a result of these procedures, the second communication device 110S-2 starts transmitting radio waves (step S204).

[0487] Here, when the first terminal 120P-1 is powered on (step S205), it performs procedures such as initial access and cell connection with the second communication device 110S-1 (step S206).

[0488] When connected to the second communication device 110S-1, the first terminal 120P-1 notifies the information processing device 200 of its operating area information (step S207). The notification of operating area information may be made via the second communication device 110S-1.

[0489] The information processing device 200, for example, notifies the first terminal 120P-1 of an acknowledgment for the notification of operational area information (step S208).

[0490] Next, when the second communication device 110S-2 requests a frequency usage notification / authentication / heartbeat procedure (step S209), the information processing device 200 performs a determination process to determine whether the second communication device 110S-2 can start or continue using the frequency (step S210).

[0491] Here, the information processing device 200 determines that the second communication device 110S-2, whose operating area R40 and coverage area R10-2 overlap with that of the first terminal 120P-1, will stop transmitting radio waves.

[0492] Therefore, the information processing device 200 transmits a radio wave transmission stop notification to the second communication device 110S-2 (step S210). Upon receiving the radio wave transmission stop notification, the second communication device 110S-2 stops transmitting radio waves (step S211).

[0493] On the other hand, even if the second communication device 110S-1 requests frequency usage notification / authentication / heartbeat procedures, the second communication device 110S-1 functions as a serving base station for the first terminal 120P-1. Therefore, the information processing device 200 does not perform the process of determining whether the second communication device 110S-1 can start or continue frequency usage, and determines that the second communication device 110S-1 will continue transmitting radio waves.

[0494] In this way, by protecting the communication of the first terminal 120P connected to the second communication device 110S, the communication system can operate a part of the secondary system as the primary system.

[0495] In this example, the information processing device 200 performs a determination process in response to a request from the second communication device 110S-2. However, the determination process may be triggered by the receipt of the operating area information of the first terminal 120P-1. Alternatively, for example, if the time at which the operation of the first terminal 120P-1 begins is specified in the operating area information, the information processing device 200 may notify the second communication device 110S-2 to stop transmitting radio waves by this time.

[0496] Furthermore, it is assumed that the first terminal 120P-1 connects to the second communication device 110S-1 after startup and then notifies the information processing device 200 of the operational area information. In other words, it is assumed that the operational area information is notified when the first terminal 120P-1 becomes able to access a network such as the Internet, but the timing of the first terminal 120P-1 notifying the operational area information is not limited to this.

[0497] For example, the first terminal 120P-1 may perform inter-terminal relay communication with another first terminal 120P (for example, the first terminal 120P-2) via sidelink communication. In this case, the operating area R40 may change depending on the number of first terminals 120P performing relay communication and the locations of the first terminals 120P.

[0498] For example, if the number of first terminals 120P performing relay communication increases, the operating area R40 may expand. Similarly, the operating area R40 may narrow or its shape may change.

[0499] In conjunction with such changes (updates) to the operating area R40, the first terminal 120P-1 may be configured to notify the information processing device 200 of the operating area information.

[0500] Alternatively, when terminal 120, which was functioning as a second terminal 120S, functions as a first terminal 120P, it may be configured to notify the information processing device 200 of the operating area information.

[0501] As shown in Figure 24, the operating area R40 of the first terminal 120P-1 partially overlaps with the coverage area R10-1 of the second communication device 110S-2. In this case, the information processing device 200 may decide to continue the radio wave transmission by the second communication device 110S-1 without performing the same determination process for starting or continuing frequency use for the second communication device 110S-2 as for the second communication device 110S-1.

[0502] For example, if the second communication devices 110S-1 and 110S-2 are operated by the same user (operator), the first terminal 120P-1 may hand over from the second communication device 110S-1 to the second communication device 110S-2. By continuing to transmit radio waves from the second communication device 110S-1, the first terminal 120P-1 can continue communication even if a handover occurs.

[0503] Furthermore, in the embodiment described above, the initial value of the cumulative interference power DB (for example, the initial value of the cumulative interference power) was assumed to be zero (0mW), but the initial value may be any value. For example, suppose the primary system is continuously operating in a specific area for a certain period of time or longer. In this case, the information processing device 200 may set the initial value of the cumulative interference power for this specific area as the acceptable interference amount for the primary system.

[0504] Furthermore, if the primary system is expected to operate continuously for a certain period of time or longer after the initial setup (initialization) of the cumulative interference power DB, the recorded value (e.g., calculated value) in the cumulative interference power DB may be rewritten to the allowable interference amount of the primary system. In this case, it is desirable for the information processing device 200 to decide to stop transmitting radio waves for the second communication device 110S that is involved in calculating the calculated value recorded at the time of the rewrite.

[0505] For example, the control device that controls the communication device 110 and the information processing device 200, etc., in the above-described embodiment may be implemented by a dedicated computer system or by a general-purpose computer system.

[0506] For example, a communication program for performing the above-described operations is stored in a computer-readable recording medium such as an optical disc, semiconductor memory, magnetic tape, or flexible disk and distributed. Then, for example, the control device is configured by installing the program on a computer and executing the above-described process. In this case, the control device may be an external device (e.g., a personal computer) of the communication device 110 and the information processing device 200. Alternatively, the control device may be an internal device (e.g., control units 113 and 230) of the communication device 110 and the information processing device 200.

[0507] Alternatively, the above communication program may be stored on a disk device provided by a server on a network such as the Internet, and made available for download to a computer. Furthermore, the above functions may be realized through the cooperation of an OS (Operating System) and application software. In this case, the parts other than the OS may be stored on a medium and distributed, or the parts other than the OS may be stored on a server device and made available for download to a computer.

[0508] Of the processes described in the embodiments of this disclosure described above, all or part of the processes described as being performed automatically may be performed manually, or all or part of the processes described as being performed manually may be performed automatically by known methods. In addition, the processing procedures, specific names, and information including various data and parameters shown in the above documents and drawings may be changed at will unless otherwise specified. For example, the various information shown in each figure is not limited to the information shown.

[0509] Furthermore, the components of each illustrated device are functionally conceptual and do not necessarily need to be physically configured as shown. In other words, the specific forms of distribution and integration of each device are not limited to those shown, and all or part of them can be functionally or physically distributed and integrated in any unit according to various loads and usage conditions.

[0510] Furthermore, the embodiments of this disclosure described above can be combined as appropriate in areas that do not contradict the processing content. Also, the steps shown in the sequence diagram or flowchart of this embodiment can be changed in order as appropriate. For example, each step may be processed chronologically, repeatedly, or partially in parallel.

[0511] Furthermore, the effects described herein are merely illustrative and not limiting; other effects may also occur.

[0512] Furthermore, the embodiment can also be implemented as any configuration constituting the device or system, such as a processor as a system LSI (Large Scale Integration), a module using multiple processors, a unit using multiple modules, or a set with additional functions added to a unit (i.e., a configuration of part of the device).

[0513] In this embodiment, a system refers to a collection of multiple components (devices, modules (parts), etc.), regardless of whether all components are located in the same enclosure. Therefore, multiple devices housed in separate enclosures and connected via a network, and a single device containing multiple modules within a single enclosure, are both considered systems.

[0514] Furthermore, for example, the embodiment can take the form of cloud computing, in which a single function is shared and processed collaboratively by multiple devices via a network.

[0515] <<8. Conclusion>> Although the embodiments of this disclosure have been described above, the technical scope of this disclosure is not limited to the embodiments described above, and various modifications are possible without departing from the gist of this disclosure. Furthermore, components from different embodiments and modifications may be combined as appropriate.

[0516] Furthermore, the effects described in each embodiment of this specification are merely illustrative and not limiting, and other effects may also occur.

[0517] Furthermore, this technology can also be configured as follows. (1) The first frequency range used by the first communication device and the first area information relating to the first communication device are acquired. A control unit determines, based on the first area information and the second area information relating to the second communication device, whether to permit the commencement or continuation of radio wave transmission by a second communication device whose second frequency range overlaps with the first frequency range, An information processing device equipped with the following features. (2) The aforementioned first area information includes information about the operating area in which the aforementioned first communication device communicates, The second area information includes information regarding the coverage of the second communication device. (1) The information processing device described above. (3) The information processing apparatus according to (2), wherein the control unit does not permit the start or continuation of the radio wave transmission by the second communication device in a third frequency range that includes the range of the second frequency range that overlaps with the first frequency range, if at least a portion of the coverage overlaps with the operating area. (4) The information processing device according to (3), wherein the control unit notifies the second communication device of a frequency range within the second frequency range for which the start or continuation of the radio wave emission is not permitted, and / or a frequency range within the second frequency range for which the start or continuation of the radio wave emission is permitted. (5) The information processing apparatus according to (2) or (3), wherein the control unit does not permit the start or continuation of the radio wave transmission by the second communication device in the second frequency range if at least a portion of the coverage overlaps with the operating area. (6) The second area information includes information about interference areas that may cause interference when the second communication device communicates using the second frequency range, The control unit determines whether to permit the start or continuation of the radio wave transmission by the second communication device in the interference area, depending on the interference caused when the second communication device communicates using the second frequency range. An information processing device described in any one of (1) to (5). (7) The information processing apparatus according to (6), wherein the control unit determines whether to permit the start or continuation of the radio wave emission by the second communication device, based on the cumulative amount of interference that the other communication device, which is different from the second communication device and communicates using at least a portion of the second frequency range, imposes on the interference area, and interference that the second communication device imposes on the interference area when it communicates using the second frequency range. (8) The information processing apparatus according to (6) or (7), wherein the control unit does not permit the start or continuation of the radio wave emission by the second communication device in the frequency range within the second frequency range that causes interference to the first communication device. (9) The information processing device according to (8), wherein the control unit notifies the second communication device of a frequency range within the second frequency range for which the start or continuation of the radio wave emission is not permitted, and / or a frequency range within the second frequency range for which the start or continuation of the radio wave emission is permitted. (10) The information processing apparatus according to any one of (6) to (9), wherein the control unit, in the interference area, does not permit the start or continuation of the radio wave emission by the second communication device in the entire second frequency range in response to the interference given to the first communication device. (11) The information processing device according to any one of (1) to (10), wherein when the control unit obtains the first area information relating to the first terminal device that communicates with the second communication device, the control unit does not start or stop the second communication device from transmitting radio waves. (12) The information processing device according to any one of (1) to (11), wherein, when the control unit obtains the first area information relating to the first terminal device that communicates with the second communication device, the control unit does not start or stop the second communication device from transmitting radio waves, regardless of the second area information. (13) A communication unit is provided, which, when the information processing device permits the start or continuation of the radio wave emission, performs the radio wave emission in at least a portion of the first frequency range, and when the information processing device does not permit the start or continuation of the radio wave emission, stops the radio wave emission in at least a portion of the first frequency range. The aforementioned information processing device is A second frequency range used by other communication devices, the second frequency range which overlaps with the first frequency range in at least a portion thereof, and a second area information relating to the other communication devices are acquired. Whether or not to permit the commencement or continuation of radio wave transmission by the aforementioned communications unit is determined according to the first area information and the second area information relating to the communications performed by the aforementioned communications unit. Communication device. (14) The communication device according to (13), further comprising a control unit that obtains from the information processing device information regarding a frequency range within the first frequency range for which the start or continuation of the radio wave emission is not permitted, and / or information regarding a frequency range within the first frequency range for which the start or continuation of the radio wave emission is permitted. (15) The control unit, The communication device according to (14), wherein the communication unit controls the communication unit to transmit radio waves in the range of the first frequency range excluding the frequency range in which the start or continuation of the radio wave transmission is not permitted, and / or in the frequency range of the first frequency range in which the start or continuation of the radio wave transmission is permitted. (16) To acquire the first frequency range used by the first communication device, and first area information relating to the first communication device, Whether or not to permit the commencement or continuation of radio wave transmission by a second communication device whose second frequency range overlaps with the first frequency range is determined according to the first area information and the second area information relating to the second communication device, Information processing methods including (17) This includes, if permission is granted to start or continue transmitting radio waves, transmitting the radio waves, and if permission is not granted to start or continue transmitting the radio waves, stopping the radio waves. The authorization to commence or continue the aforementioned radio wave transmission is determined in accordance with first area information relating to communications made by the radio wave transmission using a first frequency range, and second area information relating to other communication devices using a second frequency range that overlaps with at least a portion of the first frequency range. Communication method. [Explanation of Symbols]

[0518] 110 Communication equipment 111, 121 Wireless Communication Section 112, 122, 220 storage section 113, 123, 230 Control Unit 120 devices 130 Intermediate equipment 200 Information Processing Devices 210 Communications Department 300 Information Recording Devices 400 Information notification device

Claims

1. The first frequency range used by the first communication device and the first area information relating to the first communication device are acquired. A control unit determines, according to the first area information and the second area information relating to the second communication device, whether to permit the commencement or continuation of radio wave transmission by a second communication device whose second frequency range overlaps with the first frequency range, An information processing device equipped with the following features.

2. The aforementioned first area information includes information regarding the operating area in which the aforementioned first communication device communicates, The second area information includes information regarding the coverage of the second communication device. The information processing apparatus according to claim 1.

3. The information processing apparatus according to claim 2, wherein the control unit does not permit the start or continuation of the radio wave transmission by the second communication device in a third frequency range that includes the range of the second frequency range that overlaps with the first frequency range, if at least a portion of the coverage overlaps with the operating area.

4. The information processing apparatus according to claim 3, wherein the control unit notifies the second communication device of a frequency range within the second frequency range for which the start or continuation of the radio wave emission is not permitted, and / or a frequency range within the second frequency range for which the start or continuation of the radio wave emission is permitted.

5. The information processing apparatus according to claim 2, wherein the control unit does not permit the start or continuation of the radio wave transmission by the second communication device in the second frequency range if at least a portion of the coverage overlaps with the operating area.

6. The second area information includes information about interference areas that may cause interference when the second communication device communicates using the second frequency range. The control unit determines whether to permit the start or continuation of the radio wave transmission by the second communication device in the interference area, depending on the interference caused when the second communication device communicates using the second frequency range. The information processing apparatus according to claim 1.

7. The information processing apparatus according to claim 6, wherein the control unit determines whether or not to permit the start or continuation of the radio wave emission by the second communication device, based on the cumulative amount of interference that the other communication device, which is different from the second communication device and communicates using at least a portion of the second frequency range, imposes on the interference area, and interference that the second communication device imposes on the interference area when it communicates using the second frequency range.

8. The information processing apparatus according to claim 6, wherein the control unit does not permit the start or continuation of the radio wave emission by the second communication device in the frequency range of interference that the first communication device is subjected to within the second frequency range.

9. The information processing apparatus according to claim 8, wherein the control unit notifies the second communication device of a frequency range within the second frequency range for which the start or continuation of the radio wave emission is not permitted, and / or a frequency range within the second frequency range for which the start or continuation of the radio wave emission is permitted.

10. The information processing apparatus according to claim 6, wherein the control unit, in the interference area, does not permit the start or continuation of the radio wave emission by the second communication device in the entire second frequency range in response to the interference given to the first communication device.

11. The information processing apparatus according to claim 1, wherein when the control unit obtains the first area information relating to the first terminal device that communicates with the second communication device, the control unit does not start or stop the second communication device from transmitting radio waves.

12. The information processing device according to claim 1, wherein, upon obtaining the first area information relating to the first terminal device that communicates with the second communication device, the control unit does not initiate or suspend the transmission of radio waves by the second communication device, regardless of the second area information.

13. A communication unit is provided, which, when the information processing device permits the start or continuation of the radio wave emission, performs the radio wave emission in at least a portion of the first frequency range, and when the information processing device does not permit the start or continuation of the radio wave emission, stops the radio wave emission in at least a portion of the first frequency range. The aforementioned information processing device is A second frequency range used by other communication devices, the second frequency range which overlaps with the first frequency range in at least a portion thereof, and a second area information relating to the other communication devices are acquired. Whether or not to permit the commencement or continuation of radio wave transmission by the communication unit is determined according to the first area information and the second area information relating to the communication performed by the communication unit. Communication device.

14. The communication device according to claim 13, further comprising a control unit that obtains from the information processing device information regarding a frequency range within the first frequency range for which the start or continuation of the radio wave emission is not permitted, and / or information regarding a frequency range within the first frequency range for which the start or continuation of the radio wave emission is permitted.

15. The control unit, The communication device according to claim 14, wherein the communication unit is controlled to transmit radio waves in the range of the first frequency range excluding the frequency range in which the start or continuation of the radio wave transmission is not permitted, and / or in the frequency range of the first frequency range in which the start or continuation of the radio wave transmission is permitted.

16. To acquire the first frequency range used by the first communication device, and first area information relating to the first communication device, Whether or not to permit the commencement or continuation of radio wave transmission by a second communication device whose second frequency range overlaps with the first frequency range is determined according to the first area information and the second area information relating to the second communication device, Information processing methods including

17. This includes, if permission is granted to start or continue transmitting radio waves, transmitting the radio waves, and if permission is not granted to start or continue transmitting the radio waves, stopping the radio waves. The authorization to commence or continue the aforementioned radio wave transmission is determined according to first area information relating to communications made by the radio wave transmission using a first frequency range, and second area information relating to other communication devices using a second frequency range that overlaps with at least a portion of the first frequency range. Communication method.

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