Base station apparatus, control method, and program

Abstract

To perform communication control of terminal devices based on information about vendors of adjacent base station devices.SOLUTION: A base station device transmits a setup request message concerning an inter-base station interface or cooperative communication between base stations to another base station device, receives a setup response message including vendor information that can identify a vendor of the other base station device from the other base station device, generates adjacent cell information based on the vendor information included in the received setup response message, and controls communication of terminal devices connected to the base station device based on the adjacent cell information.SELECTED DRAWING: Figure 6

Description

Technical Field

[0001] The present invention relates to a base station device that transmits and receives information related to a base station , manufacturing and a control method and program thereof.

Background Art

[0002] In the 5th generation (5G) cellular communication standard of the 3rd Generation Partnership Project (3GPP (registered trademark)), ANR (Automatic Neighbor cell Relation) for collecting information about neighboring cells is defined. In ANR, by transmitting and receiving information such as the frequency and cell identifier of neighboring cells, communication control of a terminal device including identification of a target cell for a handover destination can be performed.

Prior Art Documents

Non-Patent Documents

[0003]

Non-Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Here, there may be a case where a failure specific to a base station device manufactured by a specific vendor such as a software version occurs. Even in such a case, since the base station device cannot identify the vendor of an adjacent base station device, as a result of a handover to a different base station, the same failure may occur in the base station device at the handover destination. Thus, there has been a problem that communication control of the terminal device may not be efficiently performed due to the inability to identify the vendor of the base station device.

Means for Solving the Problems

[0005] The present invention provides a technology that enables communication control of a terminal device based on information regarding the vendors of adjacent base station devices.

[0006] A base station device according to an aspect of the present invention includes transmission means for transmitting a setup request message regarding an interface between base stations or cooperative communication between base stations to another base station device, first reception means for receiving, from the other base station device, a setup response message including vendor information that can identify the vendor of the other base station device, a first acquisition means for acquiring information about a vendor in which a failure has occurred from an external device; among the other base stations that transmitted the setup response message received by the first receiving means, for a base station different from the vendor in which the failure acquired by the first acquisition means has occurred communication control means for generating adjacent cell information and controlling the communication of a terminal device connected to the base station device based on the adjacent cell information, and is characterized by including the above.

Advantages of the Invention

[0011] According to the present invention, it is possible to provide a technology that enables communication control of a terminal device based on information regarding the vendors of adjacent base station devices.

Brief Description of the Drawings

[0012]

Figure 1

Figure 2

Figure 3

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Figure 6

Figure 7

Embodiments for Carrying Out the Invention

[0013] Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. Note that the following embodiments do not limit the invention according to the claims, and not all combinations of the features described in the embodiments are essential for the invention. Two or more of the plurality of features described in the embodiments may be arbitrarily combined. Also, the same or similar configurations are denoted by the same reference numerals, and redundant descriptions are omitted.

[0014] (Configuration of Wireless Communication System) FIG. 1 shows a configuration example of a wireless communication system according to this embodiment. The wireless communication system 1 is, for example, a cellular communication system configured in accordance with a cellular communication standard such as the 5th generation (5G) standard or the 4th generation (4G) of the 3rd Generation Partnership Project (3GPP (registered trademark)). The wireless communication system includes base station devices 10A, 10B, 10C (which may be referred to as base station device 10 without distinction) and a terminal device 20.

[0015] Note that in FIG. 1, for simplicity of explanation, only three base station devices and one terminal device are shown, but of course, there may be two or fewer base station devices, four or more base station devices, and a plurality of terminal devices. The base station device 10 forms one or more cells and provides communication to the connected terminal device 20. The terminal device 20 can be connected to the cell formed by the base station device 10. In the example of FIG. 1, it is assumed that the terminal device 20 is connected to the base station device 10A. Also, assume that the vendors of the base station devices 10A and 10B are vendor A, and the vendor of the base station device 10C is vendor B. In this embodiment, the vendor of the base station device 10 is described as the developer and manufacturer of the base station device, but it may be the supplier of the control software of the base station device or the vendor of the base station device. Also, for the base station device 10A, the base station devices 10B and 10C are base station devices of adjacent cells and can be selected as targets when performing communication control such as handover and dual connectivity of the terminal device 20.

[0016] Referring to FIG. 2, an example of a mobility control scenario will be described. As described above, the terminal device 20 is connected to the base station device 10A. The base station device 10A determines to hand over the terminal device 20 to the base station device 10 of an adjacent cell in response to reports of the received signal strength (RSRP) and received signal quality (RSRQ) from the adjacent cell base station transmitted from the terminal device 20. Such a handover determination is made based on the adjacent cell information generated in advance by the ANR function. As shown in FIG. 2, the adjacent cell information is stored in the base station device 10A as a list in which, for example, the frequency, cell identifier, and vendor for each cell are associated. In the present embodiment, the description will be made assuming that the cell identifier is the PCI (Physical-layer Cell Identifier).

[0017] Here, for example, as shown in the following two examples, there may be a benefit to the terminal device 20 by handing over to the base station device 10 manufactured by a specific vendor.

[0018] In the first example, for example, while the advanced functions and functions desired to be used by the terminal device 20 are implemented in the base station device 10 of vendor A, these functions are not implemented in the base station device 10 of vendor B. In such a case, the base station device 10A can continue to use the functions desired to be used by the terminal device 20 by handing over the terminal device 20 to the base station device 10B of vendor A in which the advanced functions are implemented.

[0019] The second example is a case where, for example, a vendor-specific failure has occurred in the base station apparatus 10 of Vendor A. For example, due to a bug being included in a specific software version, a malfunction may occur in the base station apparatus of Vendor A. In one example, the base station apparatus of Vendor A may have a defect such that when it receives a handover message along with a software version update of the control software, it may operate abnormally. Here, when the base station apparatus 10 does not have adjacent cell information that can identify the vendor of the base station of the adjacent cell, the base station apparatus 10A may cause an abnormal operation of the base station apparatus 10B by instructing the terminal device 20 to perform a handover to the base station apparatus 10B of Vendor A. Therefore, the base station apparatus 10A can prevent the base station apparatus 10B from operating abnormally by executing communication control of the terminal device 20 so as not to send a handover message to the base station apparatus 10B of Vendor A.

[0020] Hereinafter, a configuration for executing communication control of the terminal device 20 based on vendor information regarding the vendor of the base station apparatus of the adjacent cell by the base station apparatus 10 will be described.

[0021] (Hardware Configuration) With reference to FIG. 3, the hardware configurations of the base station apparatus 10 and the terminal device 20 according to the present embodiment will be described.

[0022] The base station apparatus 10 and the terminal device 20 are configured to include a processor 301, a ROM 302, a RAM 303, a storage device 304, and a communication circuit 305. Each component 301 to 305 is communicably connected by a bus 306.

[0023] The processor 301 is a computer including one or more processing circuits such as a general-purpose CPU (Central Processing Unit) or an ASIC (Application Specific Integrated Circuit), and functions as a control unit that controls the entire base station device 10 and terminal device 20 by reading and executing programs stored in the ROM 302 and the storage device 304. Note that the processor 301 can acquire vendor information regarding the vendor of the base station device 10 stored in the ROM 302 and the storage device 304. The ROM 302 is a read-only memory that stores information such as programs and various parameters executed by the base station device 10 and the terminal device 20. The RAM 303 functions as a workspace when the processor 301 executes a program and is a random access memory that stores temporary information. The storage device 304 is configured by, for example, a removable external storage device or the like. The communication circuit 305 is configured by, for example, a circuit for wireless communication such as LTE or 5G. Also, the base station device 10 may include, in one example, a circuit for wired communication used for inter-base station communication. Note that in FIG. 3, one communication circuit 305 is illustrated, but the base station device 10 and the terminal device 20 may have a plurality of communication circuits. For example, the base station device 10 and the terminal device 20 may have wireless communication circuits for LTE (4G), 5G, and their successor standards, respectively, and an antenna common to those circuits. Note that the base station device 10 and the terminal device may have antennas suitable for each standard separately. Also, the base station device 10 may further have a wired communication circuit used when communicating with other base station devices or nodes of the core network. Also, the terminal device 20 may further have a communication circuit compliant with a wireless communication standard other than cellular communication standards such as a wireless local area network (LAN) or Bluetooth (registered trademark). Note that the base station device 10 and the terminal device 20 may have separate communication circuits 305 for each of the plurality of available frequency bands, or may have a common communication circuit 305 for at least a part of those frequency bands.

[0024] Referring to FIG. 4, the functional configuration of the base station apparatus 10 will be described. The base station apparatus 10 functions as a vendor information transmission unit 401, a vendor information reception unit 402, an adjacent cell information generation unit 403, and a communication control unit 404 by the processor 301 reading and executing programs stored in the ROM 302 and the storage device 304. Note that in FIG. 4, only the functions related to the present embodiment are illustrated, and other functions that the base station may have are omitted from the illustration.

[0025] The vendor information transmission unit 401 provides vendor information that can identify the vendor of the base station apparatus 10 to other base station apparatuses 10 or terminal apparatuses 20. For example, the vendor information transmission unit 401 includes the vendor information in a setup response message that is a response to a setup request message between the base station apparatus 10 and another base station apparatus 10 or a setup request message for cooperative communication, and transmits it to the other base station apparatus. The setup response message includes at least one of an X2 Setup Response, an Xn Setup Response, and an Endc Setup Response message.

[0026] Also, the vendor information transmission unit 401 transmits the vendor information of the base station apparatus 10 using a broadcast message such as SIB1 (System Information Block type 1). That is, the vendor information transmission unit 401 transmits the vendor information by any one of unicast, multicast, and broadcast transmission methods. Further, the vendor information transmission unit 401 may transmit the vendor information by a radio signal or may transmit the vendor information via wired communication. Note that the vendor information transmission unit 401 may transmit the vendor information by at least any one of the methods described above, and it is not necessary to transmit the vendor information by all of the methods described above.

[0027] The vendor information receiving unit 402 receives vendor information that can identify the vendor of the base station device 10 from other base station devices 10 or terminal devices 20. Specifically, the vendor information receiving unit 402 can obtain vendor information from other base station devices 10 via X2 Setup Response, Xn Setup Response, and Endc Setup Response messages via the base station interface. Also, the vendor information of other base station devices 10 can be obtained from the terminal device 20 via a measurement report message. In another example, vendor information can be obtained from other base station devices 10 via an SIB1 message via an LTE or NR link.

[0028] The adjacent cell information generating unit 403 generates adjacent cell information based on the vendor information of the other base station device 10 obtained from the other base station device 10 or the terminal device 20. In one example, the adjacent cell information generating unit 403 transmits the created adjacent cell information to the terminal device 20 connected to the base station device 10. The adjacent cell information according to this embodiment is assumed to include information (vendor information) that can identify the vendor of the base station device 10. For example, together with the vendor information obtained by the vendor information receiving unit 402, the frequency of the adjacent cell and the vendor information associated with the cell identifier (ID) are treated as adjacent cell information.

[0029] The communication control unit 404 performs mobility control (communication control) of the terminal device 20, such as E-UTRAN (Evolved Universal Terrestrial Radio Access) New Radio Dual Connectivity (ENDC), handover, and load distribution, based on the vendor information included in the adjacent cell information.

[0030] FIG. 5 shows an example of the software configuration of the terminal device 20. By the processor 301 of the terminal device 20 reading and executing the programs stored in the ROM 302 and the storage device 304, it functions as a vendor information receiving unit 501 and a vendor information transmitting unit 502.

[0031] The vendor information receiving unit 501 acquires vendor information that can identify the vendor of the base station apparatus 10 from the base station apparatus 10. In the present embodiment, while the terminal apparatus 20 is connected to the base station apparatus 10A, the terminal apparatus 20 acquires the vendor information of the base station apparatus 10B by receiving a radio signal transmitted from another base station apparatus 10B. In one example, the vendor information is acquired by receiving the SIB1 message transmitted by broadcast. In order to detect the SIB1 of the adjacent cell base station, the terminal apparatus 20 transitions to the discontinuous reception (DRX) mode to measure the radio signal. The process of acquiring the SIB1 message will be described later with reference to FIG. 7.

[0032] The vendor information transmitting unit 502 transmits the vendor information of another base station apparatus 10 to the base station apparatus 10. In the present embodiment, the terminal apparatus 20 transmits a measurement report message including the vendor information of the base station apparatus 10B acquired by the vendor information receiving unit 501 to the base station apparatus 10A to which the terminal apparatus 20 is connected.

[0033] (Processing Example 1) Subsequently, an example of the process executed in the wireless communication system 1 according to the present embodiment will be described with reference to FIG. 6. In one example, the process shown in FIG. 6 is executed when the base station apparatus 10A is added to the wireless communication system 1.

[0034] In the process of FIG. 6, information regarding the vendor of the base station apparatus 10 is included in the control message transmitted and received between the base station apparatuses 10. The control message including the vendor information includes, as described above, the Xn / X2 setup response message and the Endc setup response message. In another example, the X2, Xn setup message which is a setup message between base stations, and the Endc setup message which is a setup message for cooperative communication such as dual connectivity include the vendor information.

[0035] The base station device 10A transmits an Xn Setup Request or an X2 Setup Request message, which is a setup request message for the Xn or X2 interface, to the base station device 10B (S601). In one example, an Endc Setup Request, which is a setup request message for cooperative communication, may be transmitted in S601.

[0036] Subsequently, the base station device 10B transmits a setup response message to the base station device 10A in response to the setup request message received in S601 (S602). Specifically, an Xn Setup Response, an X2 Setup Response, or an Endc Setup Response message is transmitted to the base station device 10A according to the setup request message received by the base station device 10B in S601. Here, vendor information is included in the setup response message. Therefore, the base station device 10A can obtain vendor information that can identify the vendor of the base station device 10B by analyzing the setup response message received in S602.

[0037] Subsequently, as described with reference to the adjacent cell information generation unit 403, the base station device 10A generates adjacent cell information based on the vendor information included in the setup response message received in S602 (S603).

[0038] Then, the base station device 10A executes communication control of the terminal device 20 based on the generated adjacent cell information (S604). Hereinafter, an example of performing communication control of the terminal device 20 using the adjacent cell information created based on the vendor information will be described.

[0039] In the first example, the base station device 10 transmits adjacent cell information including vendor information to the terminal device 20. In this case, in the adjacent cell information, the cell ID of the adjacent cell and the vendor information of the base station device forming the adjacent cell are associated with each other. The terminal device 20 acquires, from an external device at an arbitrary timing, information indicating whether or not a predetermined function is supported for each vendor in order to use a predetermined function according to the application to be executed or the model. When the communication carrier operates, as a database, a list of vendors and the functions supported by those vendors, the terminal device 20 can acquire information for specifying a vendor that supports a predetermined function from the database. In another example, the external device can be a device that provides information indicating a list of functions supported by a plurality of devices operated by each vendor. Thereby, for example, the terminal device 20 can receive a radio signal transmitted only from the base station device 10 of the vendor that supports a predetermined function by acquiring information regarding the vendor that supports the predetermined function to be used from the external device. Thereby, the terminal device 20 can transmit a measurement report regarding the radio signal transmitted from the base station device 10 that supports the predetermined function desired by the terminal device 20 to the base station device 10 and perform a handover to the base station device 10 that supports the predetermined function. Note that the terminal device 20 may or may not receive a radio signal transmitted from the base station device 10 of a vendor that does not support a predetermined function. For example, the terminal device 20 receives radio signals transmitted from the base station device 10 regardless of whether or not a predetermined function is supported, and when the reception results of both the radio signal transmitted from the base station device 10 of the vendor that supports the predetermined function and the radio signal transmitted from the base station device 10 of the vendor that does not support the predetermined function satisfy the handover condition, the terminal device 20 transmits a measurement report regarding the base station device 10 of the vendor that supports the predetermined function. On the other hand, when only the reception result of the radio signal transmitted from the base station device 10 of the vendor that does not support the predetermined function satisfies the handover condition, the terminal device 20 transmits a measurement report regarding the base station device 10 of the vendor that supports the predetermined function. Thereby, the handover to the base station device 10 of the vendor that supports the predetermined function can be preferentially performed.Similarly, the terminal device 20 may obtain information regarding the vendor of the base station device 10 in which a malfunction has occurred from an external device, and perform handover only to the base station device 10 in which no malfunction has occurred, or preferentially perform handover to the base station device 10 in which no malfunction has occurred. In this case, the terminal device 20 is operated by a communications carrier or a vendor, accesses the vendor and an external device that provides information on the malfunction occurring in the base station device 10 of the vendor, and suppresses transmission of a measurement report on a radio signal transmitted from the base station device 10 in which a malfunction has occurred, thereby preventing handover to the base station device 10 in which a malfunction has occurred. Note that the base station device 10A may additionally inquire whether a predetermined function is supported by a base station device 10 that is a candidate for handover or dual connectivity.

[0040] In the second example, the adjacent cell information generation unit 403 generates adjacent cell information based on vendor information but not including the vendor information, and transmits the adjacent cell information generated by the communication control unit 404 to the terminal device 20. For example, when generating adjacent cell information in which the frequency and cell ID of the base station device 10 of an adjacent cell are associated, it is determined based on the vendor information whether to include the frequency and cell ID of a predetermined base station device 10 in the adjacent cell information.

[0041] For example, the base station apparatus 10A determines, from the vendor information of the base station apparatus 10 in an adjacent cell, whether the base station apparatus 10 supports a predetermined function that the terminal apparatus 20 desires to use, excludes the base station apparatus 10 that does not support the predetermined function from the adjacent cell information, and transmits the adjacent cell information to the terminal apparatus 20. The terminal apparatus 20 does not transmit a measurement report to the connected base station apparatus 10 for the base station apparatus 10 not included in the received adjacent cell information in order to create a measurement report for the base station apparatus 10 included in the received adjacent cell information. As a result, the terminal apparatus 20 measures only the radio signal transmitted from the base station apparatus 10 that supports the predetermined function desired by the terminal apparatus 20, and thus can control the terminal apparatus 20 not to perform handover to the base station apparatus 10 that does not support the predetermined function. In such a case, the base station apparatus 10 may receive information regarding the predetermined function desired by the terminal apparatus 20 from the terminal apparatus 20.

[0042] Also, for example, the base station apparatus 10A excludes from the adjacent cell information the base station apparatus 10 in which a failure such as a malfunction has occurred, based on the vendor information of the base station apparatus 10 in the adjacent cell, and transmits the adjacent cell information to the terminal apparatus 20. Thereby, it is possible to control the terminal apparatus 20 not to perform handover to the base station apparatus 10 in which a failure has occurred. In such a case, the base station apparatus 10 may acquire information regarding the vendor in which a failure has occurred from an external device.

[0043] In the third example, when the communication control unit 404 measures a radio signal such as a reference signal as a handover destination candidate and generates a list (white list) of the base station apparatuses 10 that are the targets for creating a measurement report, the communication control unit 404 determines whether to include a predetermined base station apparatus 10 in the white list based on the vendor information, and transmits the generated white list to the terminal apparatus 20. Since the white list is used to instruct the base station apparatus 10 to measure the radio signal transmitted from the predetermined base station apparatus 10 as a handover destination candidate from the base station apparatus 10 to the terminal apparatus 20, it is possible to prevent handover to the base station apparatus 10 not included in the white list.

[0044] In the fourth example, the communication control unit 404 creates a list of candidates (blacklist) for which it does not create a measurement report as candidates for a handover destination based on vendor information. In such a case, the communication control unit 404 determines whether to include a predetermined base station device 10 in the blacklist based on the vendor information, and transmits the generated blacklist to the terminal device 20. For the base station device 10 included in the blacklist, the terminal device 20 does not perform a measurement report, so the blacklist is used to instruct not to measure the radio signal transmitted from the predetermined base station device 10 as a candidate for a handover destination.

[0045] In the fifth example, when the base station device 10A receives a measurement report including the measurement result of a radio signal transmitted by the base station device 10 of an adjacent cell from the terminal device 20, it uses adjacent cell information when making a handover determination. For example, the terminal device 20 creates a measurement report for the radio signal transmitted from the adjacent cell base station regardless of the vendor of the adjacent cell base station. Here, since the measurement report includes a measurement identifier (MeasId) and a physical cell identifier (PCI), the base station device 10A can identify the cell measured by the terminal device 20 based on the combination of MeasId and PCI, and can identify the base station device corresponding to the identified cell. Therefore, when determining a handover destination based on the measurement report, the base station device 10 that has received the measurement report determines whether to perform a handover based on the vendor information corresponding to the base station device 10 indicated in the measurement report. The determination of whether to perform a handover may be based on the functions desired by the terminal device 20 or the presence or absence of occurrence of malfunction as in the above-described example. In such a case, the adjacent cell information may not be transmitted to the terminal device 20. As a result, the base station device 10 that has received the measurement report transmitted by the terminal device 20 can control the handover of the terminal device 20 based on the vendor information.

[0046] As described above, when setting up the base station interface or coordinated communication between base stations, the base station apparatus according to this processing example transmits information regarding the vendor of the base station apparatus. As a result, adjacent cell information can be generated based on the vendor information, and communication control of the terminal apparatus based on the vendor of the base station apparatus becomes possible. In the present embodiment, the description has been made on the assumption that only the setup application message includes the vendor information. However, the setup request message transmitted in S601 may also include the vendor information of the base station apparatus 10A. As a result, the base station apparatus 10B that has received the setup request message can also generate adjacent cell information based on the information regarding the vendor of the base station apparatus 10A.

[0047] (Processing Example 2) Subsequently, an example of the processing executed in the wireless communication system 1 will be described with reference to FIG. 7.

[0048] In the processing of FIG. 7, information regarding the vendor of the base station apparatus 10 is included in the control message transmitted and received between the base station apparatus 10 and the terminal apparatus 20.

[0049] It is assumed that the terminal apparatus 20 is connected to the base station apparatus 10A and is in the RRC-Connected state (S701). Also, the base station apparatuses 10A and 10B broadcast and transmit a radio signal including a reference signal in a predetermined resource (S702). Here, the reference signal is measured by the terminal apparatus 20 and used to create a measurement report (S703). Here, the measurement report includes at least one of the PCI (Physical-layer Cell Identifier) of the base station apparatus 10B included in the radio signal from the base station apparatus 10B which is the base station of the adjacent cell, and the RSRP (Reference Signal Received Power) and RSRQ (Reference Signal Received Quality) of the reference signal.

[0050] Subsequently, the terminal device 20 transmits the measurement report created in S703 to the connected base station device 10A (S704). As described above, the measurement report includes the PCI and RSRP / RSRQ of the detected base station device 10B. Therefore, the base station device 10A can detect that it is not possible to identify the vendor of the base station device 10B corresponding to the PCI based on the measurement report by determining whether vendor information is included in the neighboring cell information of the base station device 10B. If the base station device 10A already has the vendor information of the base station device 10B that has acquired the PCI, the processing after S705 may be omitted.

[0051] When the vendor of the base station device 10B cannot be identified, in the case of 5G, the base station device 10A transmits an RRC Reconfiguration message to the terminal device 20, and in the case of 4G, an RRC Connection Reconfiguration message to the terminal device 20, and performs RRC settings for ANR to obtain the vendor information of the base station device 10B (S705). The RRC Reconfiguration message or the RRC Connection Reconfiguration message may include resource location information that can identify at least one of the frequency and timing at which the SIB1 (System Information Block type 1) message is transmitted from the base station device 10B. Thereby, as will be described after S707, when the terminal device 20 wakes up intermittently to receive the SIB1 message, the timing at which the terminal device 20 wakes up can be determined. Also, when the terminal device 20 receives an RRC Reconfiguration message or an RRC Connection Reconfiguration message that indicates the resource where the SIB1 message of the base station device 10B is transmitted, it transitions to the discontinuous reception (DRX) mode as will be described later in S709. For this reason, the RRC Reconfiguration message or the RRC Connection Reconfiguration message that indicates the resource where the SIB1 message of the base station device 10B is transmitted also functions as a message that instructs the transition of the state of the terminal device 20. Also, since the RRC Reconfiguration message or the RRC Connection Reconfiguration message transmitted in S705 also functions as a message that instructs the measurement of the SIB1 message transmitted by the base station device 10B, these messages may include the PCI as the identifier of the base station device 10B.

[0052] Subsequently, as a response to the message received in S705, the terminal device 20 transmits an RRC Reconfiguration Complete message to the base station device 10A in the case of 5G, or an RRC Connection Reconfiguration Complete message to the base station device 10A in the case of 4G (S706).

[0053] Subsequently, the terminal device 20 transitions to the DRX (Discontinuous Reception) mode (S707), sleeps for a predetermined period, and then activates the receiving circuit of the communication circuit 305 at the timing when SIB1 is transmitted. Here, since the SIB1 message transmitted by the base station device 10B is a signal that can be received without connecting to the base station device 10B, the terminal device 20 wakes up the receiving circuit at the timing when the SIB1 message is transmitted to obtain the SIB1 message, and thereby can obtain the vendor information of the base station device 10B included in the SIB1 message. Note that the SIB1 message includes an EGCI (E-UTRAN Cell Global ID) including the ECI (E-UTRAN Cell ID) and PLMN (Public Land Mobile Network) of the base station device 10B in the case of a 4G system. Also, in the case of a 5G system, the SIB1 message includes an NCGI (NR Cell Global ID) including the NCI (NR Cell ID) and PLMN of the base station device 10B.

[0054] When the terminal device 20 receives the SIB1 message transmitted from the base station device 10B, it obtains the vendor information included in the SIB1 message, creates a measurement report message (S709), and transmits the measurement report message to the base station device 10A (S710). The measurement report message includes the ECGI or NCGI of the base station device 10B obtained by the terminal device 20 in S708 and the vendor information of the base station device 10B. Thereby, the base station device 10A that has received the measurement report message can obtain the vendor information of the base station device 10B.

[0055] The invention is not limited to the above-described embodiments, and various modifications and changes are possible within the scope of the gist of the invention.

Explanation of Reference Numerals

[0056] 1: Wireless communication system, 10A, 10B, 10C: Base station apparatus, 20: Terminal apparatus

Claims

1. A base station apparatus, comprising: transmission means for transmitting a setup request message related to an interface between base stations or coordinated communication between base stations to another base station apparatus; reception means for receiving, from the other base station apparatus, a setup response message including vendor information capable of identifying the vendor of the other base station apparatus; first acquisition means for acquiring, from an external device, information regarding a vendor in which a failure has occurred; communication control means for generating adjacent cell information for a base station different from the base station of the vendor in which the failure has occurred acquired by the first acquisition means among the other base stations that have transmitted the setup response message received by the reception means, and controlling communication of a terminal device connected to the base station apparatus based on the adjacent cell information; A base station apparatus, characterized by comprising the above.

2. The base station apparatus according to claim 1, wherein the setup response message is any one of an X2 Setup Response, an Xn Setup Response, and an EnDC Setup Response message.

3. The base station apparatus according to claim 1, wherein the communication control means controls such that the terminal device does not transmit a handover message to the other base station apparatus when the vendor information indicates a predetermined vendor.

4. The base station apparatus according to claim 3, wherein the communication control means transmits the adjacent cell information to the terminal device.

5. second acquisition means for acquiring, from the terminal device, a predetermined function that the terminal device desires to use; third acquisition means for acquiring, from an external device, information indicating whether the predetermined function is supported for each vendor; further comprising: The communication control means identifies, based on the information acquired by the third acquisition means, a base station that supports the predetermined function that the terminal device desires to use acquired by the second acquisition means among the other base stations that have transmitted the setup response message received by the reception means, generates adjacent cell information for the base station that supports the predetermined function, and controls communication of a terminal device connected to the base station apparatus based on the adjacent cell information. The base station apparatus according to claim 1.

6. A control method for a base station apparatus, comprising: transmitting a setup request message related to an interface between base stations or coordinated communication between base stations to another base station apparatus; Receiving, from the other base station device, a setup response message including vendor information capable of identifying the vendor of the other base station device; Obtaining information regarding the vendor in which a failure has occurred from an external device; Generating adjacent cell information for a base station different from the vendor in which a failure has occurred among the other base stations that have transmitted the received setup response message, and controlling communication of a terminal device connected to the base station device based on the adjacent cell information; A control method characterized by including the above.

7. A program for causing a computer to function as each means included in the base station device according to any one of claims 1 to 5.

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