WO2015198572A1 - 基地局、サーバ、システム、無線リソース割当方法 - Google Patents
基地局、サーバ、システム、無線リソース割当方法 Download PDFInfo
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- WO2015198572A1 WO2015198572A1 PCT/JP2015/003081 JP2015003081W WO2015198572A1 WO 2015198572 A1 WO2015198572 A1 WO 2015198572A1 JP 2015003081 W JP2015003081 W JP 2015003081W WO 2015198572 A1 WO2015198572 A1 WO 2015198572A1
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- base station
- radio resource
- group
- mvno
- server
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/14—Spectrum sharing arrangements between different networks
Definitions
- the present invention relates to a base station, server, system, and radio resource allocation method, and more particularly to a base station, server, system, and radio resource allocation method in which a plurality of operators share radio resources.
- MVNO virtual mobile communication carrier
- MNO Mobile Network Operator
- Patent Document 1 The technology related to MVNO is disclosed in the following Patent Document 1.
- the information processing apparatus disclosed in Patent Document 1 includes a calculation unit.
- the calculation unit calculates a usage fee charged to a communication carrier (that is, MVNO) that provides a wireless communication service using a mobile network owned by the MNO. At this time, the calculation unit calculates the usage fee based on a parameter that depends on the usage efficiency of the radio resource.
- MVNO communication carrier
- Patent Document 1 Since the information processing apparatus of Patent Document 1 calculates the MVNO usage fee according to the usage efficiency of radio resources, it gives the MVNO motivation to use radio resources efficiently. As a result, efficient use of radio resources by MVNO is promoted, and the information processing apparatus disclosed in Patent Document 1 can prevent a finite radio resource from being exhausted or tight.
- FIG. 1 is a diagram illustrating an example of radio resources (frequency bands) used by a general base station. As shown in FIG. 1, each MVNO shares radio resources (frequency bands) # 1 to # 16 used by the base station for radio communication.
- the radio resources used by the base station are hereinafter referred to as “base station radio resources” in this specification.
- each MVNO As shown in FIG. 1, as one method for each MVNO to share the radio resources of the base station, the radio resources are divided into radio resources dedicated to each MVNO and radio resources shared by each MVNO. There is a known method of sharing shared radio resources. In the above-described method, each MVNO first uses its own radio resource (hereinafter referred to as “dedicated resource”), and when all the dedicated resources are used, the shared radio resource is used. Each MVNO can use radio resources with each other after securing available radio resources.
- dedicated resource hereinafter referred to as “dedicated resource”
- each base station provided in the mobile network receives a message requesting connection from the MVNO terminal and communicates with the MVNO terminal using the dedicated resource of the MVNO. I do.
- each base station communicates with the above-mentioned MVNO terminal using the shared radio resources.
- the shared radio resource provided in each base station is used by each MVNO (terminal).
- Patent Documents 2 and 3 describe devices that provide services or manage service quality using resources.
- each MVNO is a base station provided in the mobile circuit network.
- the wireless resources cannot be shared fairly.
- each base station of the mobile communication systems of Patent Documents 1, 2, and 3 determines which MVNO terminal uses a lot of the radio resources of each base station when using the shared radio resources. It is because it will use it. As a result, a lot of radio resources shared by each base station may be used by some MVNO terminals, and each MVNO cannot always share the radio resources of each base station fairly.
- An object of the present invention is to provide a base station, a server, a system, and a radio resource allocation method that solve the above problems.
- the base station of the present invention when receiving a connection request message from a predetermined group of terminals, uses a radio resource for performing communication and a radio resource using means for communicating with the terminal And a reporting means for outputting, for each group, the usage amount of the radio resource used to communicate with the terminals of the predetermined group at a predetermined timing, the radio resource using means,
- the radio resources are used in order from the terminal of the group with the highest priority indicated by the information. Communicate.
- the server of the present invention receives the usage amount of a radio resource related to a predetermined group from at least one base station to be connected, for each group, the usage amount related to the group.
- Determining means for outputting information corresponding to a predetermined number having a monotonically increasing relationship with the total sum as information indicating the priority of the group.
- the system of the present invention connects a base station and a server, and when the base station receives a connection request message from a predetermined group of terminals, the base station uses radio resources for communication. And a wireless resource using means for communicating with the terminal, and at a predetermined timing, the usage amount of the wireless resource used for communicating with the terminal of the predetermined group is output for each group. And when the information indicating the priority order of the group is input according to the output, the wireless resource using means has a higher priority order indicated by the information when communicating with the terminal.
- the base station performs communication using the radio resources in order from the terminals of the group, and the server receives a predetermined group from at least one base station to be connected.
- the radio resource usage method of the present invention is configured such that, when a usage amount of radio resources according to a predetermined group is input from at least one base station, the usage according to the group is performed for each group.
- Information corresponding to a predetermined number having a monotonically increasing relationship with the sum of the quantities is output as information indicating the priority order of the group, and the information input when the base station communicates with the terminal of the group Communication is performed using the radio resources in order from the terminal of the group with the highest priority indicated by.
- each MVNO can share the radio resources of each base station of the mobile network more evenly.
- FIG. (1) for demonstrating the operation
- FIG. (2) for demonstrating the operation
- FIG. (1) for demonstrating the operation
- FIG. (2) for demonstrating the operation
- the server indicates how much each MVNO is using all the radio resources (hereinafter referred to as “all radio resources”) of each connected base station. To grasp. And a server determines the use priority of each MVNO so that each MVNO uses all the radio
- shared resource a radio resource shared by each MVNO
- each base station causes the MVNO that uses a small amount of radio resources of each base station to preferentially use the shared resources, so that each MVNO uses the radio resources of each base station more fairly. You can share.
- FIG. 2 is a diagram illustrating a configuration example of a system according to the first embodiment of the present invention.
- the system according to the present embodiment is a mobile communication system.
- IP is an abbreviation for Internet Protocol
- MME is an abbreviation for Mobility Management Entity.
- Terminals 1_1 to 1_12 are connected to the base station 2_1 via a wireless line
- terminals 1_13 to 1_24 are connected to the base station 2_2 via a wireless line
- the base stations 2_1 and 2_2 are connected to the server 4 and the MME 5 via the IP network 3 through a wired line.
- the number of base stations and terminals provided in the system of the present embodiment is not limited to two or 24.
- the system according to the present embodiment may include a number of terminals and base stations other than two or 24.
- a SIM (Subscriber Identity Module) card is mounted by the user.
- Information indicating the MVNO (hereinafter referred to as “MVNO information”) is written in the SIM card.
- the SIM card is a card provided from the contracted MVNO when the user of the terminal 1_k contracts with the MVNO, and the above-described MVNO information is written by the contracted MVNO.
- MVNO terminal the above-described message for requesting call connection may be an RRC Connection Request defined in 3GPP.
- RRC is an abbreviation for Radio Resource Control.
- FIG. 3 is a diagram illustrating an example of radio resources used by the base station 2_1 in the system according to the first embodiment of the present invention.
- the base station 2_1 can use several radio resources in the same way as a general base station.
- the base station 2_1 like a general base station, as shown in FIG. 3, dedicated radio resources for MVNOA, B, C, and D (hereinafter referred to as “dedicated resources”), and each MVNO Can be used with radio resources shared by each other (hereinafter referred to as “shared resources”).
- the radio resource may be a frequency band.
- the radio resource may be a resource block when the base station 2_1 is compatible with the OFDM scheme.
- the radio resource may be a code when the base station 2_1 supports the CDMA system.
- the radio resource may be a combination of a frequency band, a resource block, and a code.
- OFDM is an abbreviation for Orthogonal Frequency Division Multiplexing
- CDMA is an abbreviation for Code Division Multiple Access.
- the base station 2_1 has a general base station function that operates in accordance with 3GPP. That is, the base station 2_1 receives a message requesting connection from the terminal 1_k of each MVNO in conformity with 3GPP.
- the base station 2_1 When the base station 2_1 receives a message requesting connection, the base station 2_1 first uses dedicated resources, and when all dedicated resources are used, communicates with the terminal 1_k using shared resources. Note that, when using the dedicated resource, the base station 2_1 extracts the MVNO information from the message requesting connection, and uses the dedicated resource of the MVNO indicated by the extracted MVNO information.
- dedicated resources and shared resources are used by each MVNO.
- the base station 2_1 notifies the server 4 of the usage amount of radio resources used by each MVNO at regular time intervals.
- the base station 2_1 calculates the number of radio resources used for each MVNO (to communicate with each MVNO terminal) at a predetermined timing, and uses the radio resources of each MVNO.
- the server 4 is notified as an amount.
- a specific calculation example will be described in “(2) Operation for Notifying Server 4 of Usage Status of Radio Resource” described later.
- the above-mentioned predetermined timing is a fixed interval timing, and is preset in the base station 2_1 by the system administrator of the present embodiment.
- the base station 2_1 has priority to use shared resources of each MVNO (hereinafter referred to as “use”). (Referred to as “priority order”) from the server 4.
- the base station 2_1 causes the MVNO having the higher use priority to use the shared resource with priority.
- the base station 2_1 receives the connection request message from the terminal 1_k of the MVNO having a high use priority with priority. Upon receiving the connection request message, the base station 2_1 uses the dedicated resource or the shared resource as described in “(3-2) Radio resource use function” above, and uses the MVNO terminal 1_k having a high use priority. Communicate.
- the above calculation is realized by the server 4 summing up the usage amount of the radio resources of each MVNO notified from each of the base stations 2_1 and 2_2 for each MVNO, and dividing each summed value by the total number of radio resources. Is done. Each calculated division value is hereinafter referred to as “radio resource usage rate of each MVNO”.
- the above-mentioned total number of radio resources is a total value of the number of radio resources of each base station 2_1, 2_2 connected to the server 4, and is preset in the server 4 by the system administrator of the present embodiment. .
- the server 4 determines the shared resource usage priority of each MVNO based on the calculated radio resource usage rate of each MVNO.
- the server 4 determines the use priority higher for the MVNO having a lower radio resource usage rate and lower the use priority for the MVNO having a higher radio resource usage rate. This is because each MVNO can use all radio resources on average.
- the server 4 notifies the base stations 2_1 and 2_2 of the determined usage priority of each MVNO.
- FIG. 4 is a diagram illustrating a configuration example of the base station 2_1 included in the system according to the first embodiment of the present invention.
- the base station 2_1 As shown in FIG. 4, the radio resource usage unit 10, the message reception unit 11, and the radio resource usage report Unit 12 and a wired-side interface unit 13.
- the base station 2_2 has the same configuration as the base station 2_1.
- FIG. 5 is a diagram illustrating a configuration example of the server 4 provided in the system according to the first embodiment of the present invention.
- the server 4 implements the above-mentioned “(4) function of the server 4”, as shown in FIG. 5, the inter-base station interface unit 40, the usage status management unit 41, the priority determination unit 42, A policy notification unit 43.
- FIG. 6 is a diagram for explaining the operation of the system according to the first embodiment of the present invention. The detailed operation of the system of this embodiment will be described below with reference to FIG.
- terminal 1_1 will be described first, and then the other terminals 1_2 to 1_24 will be described.
- the base station 2_1 when the base station 2_1 receives a message requesting a connection from the terminal 1_1, first, the dedicated resource is used, and when all the dedicated resources are used, the shared resource is used, as in a general base station. To communicate with the terminal 1_1.
- the base station 2_1 acquires MVNO information from a message requesting connection (hereinafter referred to as “connection request message”), and uses the acquired MVNO information for radio resources (dedicated to communicate with the terminal 1_1). Resource or shared resource). This is to make it clear which MVNO (terminal) each radio resource is used by.
- connection request message a message requesting connection
- radio resources dedicated to communicate with the terminal 1_1. Resource or shared resource.
- FIG. 7 is a diagram for explaining the operation of the system (operation to be performed at the time of attachment) in the first embodiment of the present invention.
- the terminal 1_1 sends a connection request message (specifically, to the base station 2_1 of the cell in which it is located in a known attach process). , RRC Connection Request) is transmitted (S110).
- the terminal 1_1 transmits the above connection request message including the MVNO information described in the SIM card included in the terminal 1_1. This is to inform the base station 2_1 of which MVNO the terminal 1_1 is.
- the message receiving unit 11 of the base station 2_1 receives the connection request message from the terminal 1_1 in conformity with 3GPP, the message receiving unit 11 outputs the received connection request message to the radio resource using unit 10 (S111).
- the radio resource use unit 10 of the base station 2_1 extracts MVNO information from the connection request message (S112).
- the radio resource use unit 10 communicates with the terminal 1_1 using the MVNO dedicated resource indicated by the MVNO information (S113).
- the radio resource using unit 10 communicates with the terminal 1_1 using the shared resources.
- the radio resource use unit 10 associates the MVNO information extracted in S112 described above with the radio resource used to communicate with the terminal 1_1 (S114).
- the radio resource use unit 10 may realize the association described above by associating a predetermined number corresponding to each radio resource (frequency band) with the MVNO information extracted in S112 described above.
- the predetermined number is set in advance in the radio resource use unit 10 by the system administrator of the present embodiment.
- FIG. 8 is a diagram for explaining radio resources provided in the base station 2_1.
- MVNO information may also be included in messages other than connection request messages (hereinafter referred to as “other received messages”).
- the wireless resource using unit 10 receives another received message from the terminal 1_1 instead of S114 described above, the wireless resource using unit 10 extracts MVNO information from the message and extracts it to the wireless resource used to communicate with the terminal 1_1.
- MVNO information may be associated.
- the other received message is, for example, RRC Connection Setup Complete.
- the base station 2_1 determines the number of radio resources used by each MVNO (hereinafter, The server 4 is notified of "the amount of radio resources used by each MVNO" (S2).
- the reporting unit 12 of the base station 2_1 counts the number of each type of MVNO information associated with the radio resource at a predetermined timing, and associates the counted number with the MVNO information to be counted.
- the reporting unit 12 counts 5 for the MVNO information indicating MVNOA, and associates the counted number 5 with the MVNO information indicating MVNOA.
- the reporting unit 12 counts one piece of MVNO information indicating MVNOB, and stores the counted number 1 and MVNO information indicating MVNOB in association with each other. Further, the reporting unit 12 counts 3 for the MVNO information indicating MVNOC, stores the MVNO information indicating MVNOC in association with the number 3, and counts the MVNO information indicating MVNOD as one. Similarly, the MVNO information indicating the MVNOD is stored.
- predetermined timing is a constant interval time, and is set in the reporting unit 12 by the system administrator of the present embodiment.
- the reporting unit 12 outputs the stored number (hereinafter referred to as “the number of wireless resources used”) and the MVNO information to the wired interface unit 13.
- the wired interface unit 13 transmits the number of radio resources used and the MVNO information input from the report unit 12 to the server 4 as the radio resource usage of each MVNO.
- Base Station 2_2 performs the same operation as the base station 2_1. As a result, the base station 2_2 notifies the server 4 of the usage amount of the radio resource of each MVNO, similarly to the base station 2_1 (S3).
- Operation 1 of server 4 (operation for calculating radio resource usage rate of each MVNO) (4-1) Outline of Operation
- the server 4 receives each MVNO (in the system of this embodiment) as shown in FIG. )
- the above-mentioned all radio resources are all radio resources of the base stations 2_1 and 2_2 connected to the server 4.
- FIG. 9 is a diagram for explaining the system operation (server operation) in the first exemplary embodiment of the present invention.
- the interface unit 40 between the base stations of the server 4 receives the usage amount of radio resources of each MVNO (that is, MVNO information and the number of radio resources used) from each base station 2_1, 2_2, these are shown in FIG. As shown in FIG.
- the output MVNO information is associated with the number of radio resources used.
- the usage status management unit 41 calculates and stores the radio resource usage rate of each MVNO in all radio resources (S141).
- the usage status management unit 41 sums up all the radio resource usages related to the MVNO information, and obtains a value obtained by multiplying the value obtained by dividing by the total radio resource number by 100.
- the radio resource usage rate is stored in association with the MVNO information.
- the usage status management unit 41 includes (via the inter-base station interface unit 40) MVNO information indicating MVNOA from the base station 2_1 and a radio resource usage number of 5 It is assumed that MVNO information indicating MVNOA and 10 radio resource usage numbers are input from the station 2_2.
- the usage status management unit 41 sums up the number of radio resources used for the MVNO information indicating MVNOA, and divides the total value 15 (the above-mentioned usage amount 5 + usage amount 10) by the total number of radio resources.
- the usage status management unit 41 stores the value obtained by multiplying the divided value by 100 as the MVNOA radio resource usage rate in association with the MVNO information indicating the MVNOA.
- the usage status management unit 41 receives the radio resource usage number 1 from the base station 2_1 (via the inter-base station interface unit 40) in association with the MVNO information indicating the MVNOB.
- the usage status management unit 41 divides the total value 1 (the above-mentioned usage 1) of the number of radio resources used, which is input with respect to the MVNO information indicating MVNOB, by the total number of radio resources.
- the use status management unit 41 stores the value obtained by multiplying the divided value by 100 as the MVNOB radio resource usage rate in association with the MVNO information indicating the MVNOB.
- the above-mentioned total number of radio resources is a total value of the number of radio resources of each of the base stations 2_1 and 2_2 connected to the server 4, and is set in the server 4 in advance by the system administrator of the present embodiment.
- the usage status management unit 41 outputs the radio resource usage rate and MVNO information of each MVNO stored in S141 to the priority determination unit 42 (S142).
- FIG. 10 is a diagram illustrating an example of the radio resource usage rate of each MVNO stored in the server 4.
- the usage status management unit 41 stores the radio resource usage rate of each MVNO and the MVNO information in association with each other as indicated by the broken line in FIG. Output to. Note that the usage status management unit 41 may also store the amount of radio resources used (that is, MVNO information and the number of radio resources used) of each MVNO received in S140 described above.
- the use status management unit 41 divides the total value of the number of radio resources used by the total number of radio resources, but this division need not be performed. This is because it does not affect the processing of S150 to S152 (calculation of the priority order of each MVNO) described later.
- the usage status management unit 41 stores the total value of the number of radio resources used in association with the MVNO information as it is. Further, in S142 after S141, the usage status management unit 41 regards the above-described total value as the radio resource usage rate of each MVNO, and outputs it to the priority determination unit 42 in association with the MVNO information.
- Operation 4 of the server 4 (operation for determining the priority of shared resource use of each MVNO)
- Operation Overview Next, as shown in FIG. 6, the server 4 determines the use priority order of the shared resources of each MVNO based on the radio resource usage rate of each MVNO calculated in S4 described above. (S5).
- the server 4 uses a higher priority for MVNO with a lower radio resource usage rate and a higher priority for MVNO with a higher radio resource usage rate so that each MVNO can use all radio resources on average. Decide low.
- the priority determination unit 42 of the server 4 receives the input of the radio resource usage rate and MVNO information of each MVNO.
- the wireless resource usage rate is set as a number indicating the usage priority (S150).
- the priority determination unit 42 of the server 4 sends MVNO information indicating MVNOA and a radio resource usage rate 55 (%), MVNO information indicating MVNOB and a radio resource usage rate 10 ( %) Is entered.
- the priority determination unit 42 of the server 4 sets the number indicating the use priority to 55 for the MVNO information indicating MVNOA.
- the number 55 indicating the priority for use indicates the 55th place.
- the priority determination unit 42 of the server 4 determines 10 as the number indicating the use priority.
- the number 10 indicating the priority for use indicates the 10th place.
- the priority determination unit 42 of the server 4 obtains a number indicating a higher use priority (that is, a lower use priority) as the radio resource usage rate is larger. Note that the priority determination unit 42 of the server 4 may regard an arbitrary number as a number indicating the use priority as long as it has a monotonously increasing relationship with the input radio resource usage rate.
- the priority determination unit 42 of the server 4 associates the number indicating the use priority obtained for each MVNO information with the MVNO information. As shown in FIG. 9, the data is output to the policy notification unit 43 (S151).
- the priority determination unit 42 of the server 4 associates the MVNO information indicating MVNOA with the number 55 (rank) indicating the use priority and outputs it to the policy notification unit 43 to indicate the MVNO information indicating the MVNOB and the use priority.
- the number 10 (rank) is output in association with it.
- the policy notification unit 43 of the server 4 associates each MVNO information input from the priority determination unit 42 with a number indicating the use priority, and as shown in FIG. 9, as the use priority of each MVNO, The output is made to the inter-base station interface unit 40 (S152).
- FIG. 11 is a diagram illustrating an example of the usage priority order of each MVNO output by the policy notification unit 43 of the server 4.
- the usage status management unit 41 may associate each MVNO information with a number indicating the usage priority order and output the information to the policy notification unit 43.
- the inter-base station interface unit 40 of the server 4 transmits the MVNO information input from the policy notification unit 43 and a number indicating the use priority order to each of the base stations 2_1 and 2_2.
- the base stations 2_1 and 2_2 preferentially receive a connection request message from the terminal 1_k of the MVNO having a high use priority.
- the base stations 2_1 and 2_2 Upon receiving the connection request message, the base stations 2_1 and 2_2 perform the above-described S110 to S114, and communicate with the MVNO terminal 1_k having a high use priority using dedicated resources or shared resources.
- FIGS. 12 and 13 are diagrams for explaining the operation of the system (the operation of the base station after the usage priority is notified) according to the first embodiment of the present invention.
- the wired-side interface unit 13 of the base station 2_1 receives the server 4 When the MVNO information and the number indicating the use priority order are received, the information is output to the radio resource use unit 10 (S170).
- the radio resource use unit 10 of the base station 2_1 associates the input MVNO information with the use priority and stores it as a priority management table (S171).
- the radio resource using unit 10 of the base station 2_1 activates a time measuring function provided in itself and starts measuring time (S172).
- the message receiving unit 11 of the base station 2_1 when receiving the connection request message from the terminal 1_11, the message receiving unit 11 of the base station 2_1 outputs the received connection request message to the radio resource using unit 10 as in S111 described above ( S173).
- the radio resource using unit 10 of the base station 2_1 extracts MVNO information from the input connection request message as in S112 described above (S174). .
- the wireless resource usage unit 10 acquires the MVNO usage priority indicated by the extracted MVNO information (S175).
- the radio resource use unit 10 reads the priority management table, and obtains a number indicating the use priority related to the MVNO information extracted in S174 described above from the priority management table.
- the radio resource use unit 10 associates the received connection request message with the number indicating the use priority obtained in S175 described above, and temporarily stores it in its own memory (hereinafter referred to as “reception buffer”). (S176).
- the radio resource using unit 10 determines whether or not a predetermined time has elapsed by the time measuring function (started in S172 described above) (S177).
- the predetermined time is set in the wireless resource use unit 10 by the system administrator of the present embodiment.
- the radio resource using unit 10 repeats the above S174 to S176 until the predetermined time has passed. That is, when receiving a connection request message from another terminal, the radio resource use unit 10 associates the connection request message with a number indicating the priority of use and stores it in the reception buffer.
- connection request messages associated with numbers indicating the priority of use are stored.
- the radio resource use unit 10 extracts all the connection request messages stored in the reception buffer, and provides another memory provided in itself. (Hereinafter referred to as “processing memory”) (S178).
- the radio resource use unit 10 extracts one connection request message associated with the highest use priority (that is, the number indicating the lowest use priority) from the connection request messages stored in the processing memory. (S179).
- connection request message extracted in S179 is the connection request message received from the terminal 1_11.
- the wireless resource usage unit 10 surrounds the above-described S174 to S176 (enclosed by the broken line in FIG. 13). Process) is given priority. That is, when the connection request message is input, the radio resource use unit 10 stores the message in the reception buffer (in association with a number indicating the use priority).
- the radio resource using unit 10 regards the connection request message extracted in the above-described S179 as the received connection request message, and performs the above-described S112 to S114 (S180).
- the radio resource use unit 10 communicates with the terminal 1_11 of the MVNO having a high use priority using the dedicated resource or the shared resource.
- the radio resource use unit 10 determines whether another connection request message is stored in the processing memory (S181).
- the radio resource using unit 10 When the connection request message is stored in the processing memory (Yes in S181), the radio resource using unit 10 returns to the above-described S179 and sends the next highest connection priority request message from the processing memory. Extract one. Next, the radio resource use unit 10 performs the above-described S180 to S181 for the extracted connection request message.
- the radio resource use unit 10 performs the above-described S112 to S114 sequentially from the connection request message associated with a higher use priority.
- the radio resource use unit 10 communicates with a MVNO terminal having a higher use priority among the terminals that have transmitted the connection request message using a dedicated resource or a shared resource. I do.
- the wireless resource using unit 10 cannot perform the above-described S112 to S114 and cannot communicate with the terminal. In that case, the radio resource use unit 10 stores the connection request message extracted in S179 described above in the reception buffer again. This is because the processing waits for the next predetermined time after waiting for a shared resource to become available.
- the radio resource use unit 10 may store the connection request message to be stored in association with 1 as the number of times of storage. Thereafter, each time the connection request message is stored again in the reception buffer, the radio resource use unit 10 may increment and store the above-mentioned storage count. The radio resource using unit 10 may delete a message associated with a predetermined number of times of storage from the reception buffer. This is to prevent a connection request message having a low use priority from being accumulated in the reception buffer indefinitely.
- the wireless resource use unit 10 temporarily stops the time measuring function, activates the time measuring function again, and starts Is newly started (S182).
- the radio resource use unit 10 performs the above-described S174 to S177, and waits for a predetermined time while storing the input connection request message in the reception buffer. .
- the radio resource use unit 10 performs the above-described S178 to S182, and then repeatedly performs the above-described S174 to S182.
- the radio resource use unit 10 of each of the base stations 2_1 and 2_2 receives the number indicating the priority of use and the MVNO information asynchronously in parallel with the above-described implementation of S174 to S182 (the wired side interface unit 13 is connected). Through the server 4).
- the new priority management table is used when the radio resource use unit 10 next executes S174 to S182. That is, when performing S174 to S182, the radio resource use unit 10 uses a new priority management table, and acquires a dedicated resource or a shared resource from a MVNO terminal having a higher use priority indicated by the management table. Use to communicate.
- the radio resource use unit 10 executes the above-described S178 for the first time after storing the new priority management table in the above-described S171.
- the following processes (I) to (III) may be performed. That is, the radio resource use unit 10 performs the following (I) to (III) for each connection request message extracted from the reception buffer when performing S178 for the first time after storing the new priority management table. Also good.
- the latest use priority (indicated by the number) indicated in the new priority management table can be reliably associated with the connection request message stored in the processing memory.
- the radio resource use unit 10 extracts MVNO information from the connection request message in the same manner as S174 described above.
- the radio resource use unit 10 acquires a number indicating the use priority related to the extracted MVNO information from the new priority management table.
- the radio resource use unit 10 replaces the number indicating the use priority associated with the connection request message with the number indicating the use priority acquired in (II), and then requests the connection request. Store the message in processing memory.
- the radio resource use unit 10 performs the above processes (I) to (III) for all connection request messages extracted from the reception buffer.
- the reporting unit 12 of the base stations 2_1 and 2_2 notifies the server 4 of the number of radio resources used together with the MVNO information.
- the reporting unit 12 divides the number of radio resources used by the number of radio resources provided in the base station and multiplied by 100 (hereinafter referred to as “radio resource usage rate in each base station”).
- the server 4 may be notified.
- the server 4 uses the above-mentioned “radio resource usage rate in each base station” instead of the radio resource usage number. Further, the server 4 may store the MVNO information received in S140 described above and the radio resource usage rate in each base station in association with each other as shown in the broken line in FIG.
- FIG. 14 is a diagram illustrating an example of MVNO information stored in the server 4 and the usage rate of radio resources.
- the usage status management unit 41 divides the total number of radio resources used by the total number of radio resources.
- the usage status management unit 41 may divide the total number of radio resources used by the number of dedicated resources instead of the total number of radio resources.
- the number of dedicated resources is set in the usage status management unit 41 by the system administrator of the present embodiment.
- MVNO can share the radio resources of each base station more fairly.
- the system according to the present embodiment obtains an MVNO with a low usage rate of radio resources of each base station (that is, an MVNO with a low usage amount), and causes the MVNO to use the radio resources with priority.
- FIG. 15 is a diagram illustrating a configuration example of a system according to the second embodiment of the present invention. The configuration and operation of the system according to the second embodiment will be described below.
- the system of the second embodiment includes terminals 100_1 to 100_6, base stations 200 and 210, and a server 300.
- the base station 200 is connected to the terminals 100_1 to 100_3 via a wireless line, and the base station 210 is connected to the terminals 100_4 to 100_6 via a wireless line.
- Base stations 200 and 210 are connected to server 300 via a wired line.
- the base station 200 includes a radio resource use unit 201 and a report unit 202.
- the base station 210 includes a radio resource use unit 211 and a report unit 212.
- the server 300 includes a determination unit 301 as shown in FIG.
- the terminals 100_1 to 100_6 are terminals of a predetermined group.
- the predetermined group may be a predetermined virtual mobile communication carrier.
- terminals 100_1, 100_2, 100_5, and 100_6 are group A terminals as illustrated in FIG. 15, and the terminals 100_3 and 100_4 are described as group B terminals.
- FIG. 16 is a diagram for explaining radio resources used by the base station of the system according to the second embodiment of the present invention.
- the radio resource use unit 201 of the base station 200 can use two radio resources in order to communicate with the terminals 100_1 to 100_3.
- the two radio resources used by the radio resource use unit 201 are indicated as radio resources 203 in FIG.
- the radio resource is a frequency band.
- the radio resource use unit 211 of the base station 210 can use two radio resources (that is, frequency bands) in order to communicate with the terminals 100_4 to 100_6.
- the two radio resources used by the radio resource use unit 211 are indicated as radio resources 213 in FIG.
- Radio Resource Usage Operations of Base Stations 200 and 210 First, the radio resource usage units 201 and 211 of the base stations 200 and 210 are set to predetermined groups A and B, respectively. When the connection request message is received from the terminal, the wireless resources 203 and 213 are used to communicate with the terminal.
- the radio resource use unit 201 of the base station 200 receives the connection request message from the terminal 100_1 of the group A, as shown in the middle diagram of FIG. Communicate with 100_1.
- the radio resource use unit 211 of the base station 210 receives connection request messages from the terminals 100_4 and 100_5 of the groups B and A, the radio resource use unit 211 communicates with the terminals 100_4 and 100_5 using one radio resource 213, respectively. .
- the reporting unit 212 of the base station 210 uses the radio resource 213 used to communicate with the terminal of group A (specifically, the terminal 100_5) at a predetermined timing (one). Is output to the server 300. As shown in the middle diagram of FIG. 16, there is one radio resource 213 used to communicate with the terminals of group A. In addition, the reporting unit 212 of the base station 210 outputs the usage amount (one) of the radio resource 213 used to communicate with the group B terminal (specifically, the terminal 100_4) to the server 300. .
- the reporting unit 202 of the base station 200 receives the usage amount (one unit) of the radio resource 203 used to communicate with the terminal of group A (specifically, the terminal 100_1) at a predetermined timing. ) To the server 300.
- Predetermined timing is a fixed interval timing, and is set in the reporting units 202 and 212 of the base stations 200 and 210 by the system administrator of the present embodiment.
- the determination unit 301 of the server 300 outputs, for each of the groups A and B, information corresponding to a predetermined number having a monotonically increasing relationship with the total usage amount (related to the group) as information indicating the priority order of the group. .
- the usage amount (one) of radio resources related to group A is input from the base station 200 to the server 300.
- the usage amount (one) of the radio resources related to group A is input from the base station 210 to the server 300, and the usage amount (one) of the radio resources related to group B is further input.
- the total amount of radio resources used for group A is two, and the total amount of radio resources used for group B is one.
- the determination unit 301 of the server 300 assigns a predetermined number 100 (rank) corresponding to two total radio resource usage (group A priority). May be output to each base station 200, 210). Similarly, the determination unit 301 of the server 300 outputs a predetermined number 1 (rank) corresponding to one total of the usage amount of radio resources (as information indicating the priority order of the group B) to each of the base stations 200 and 210. May be.
- the total usage amount of each radio resource and the predetermined number are in a monotonically increasing relationship. That is, when the total amount of radio resource usage is large, the predetermined number is a large value.
- the predetermined number is set in the determination unit 301 of the server 300 by the system administrator of the present embodiment in association with the total amount of radio resource usage.
- the wireless resource using units 201 and 211 of the base stations 200 and 210 communicate information with the terminals when the information indicating the priority of the group is input, the wireless resource using units 201 and 211 sequentially start from the terminal of the group with the highest priority indicated by the input information Communicate using radio resources.
- the radio resource use unit 201 of the base station 200 has the number 100 (rank) as information indicating the priority order of the group A and the number 1 (rank) as information indicating the priority order of the group B. Is entered. The input number has a higher priority as the number is smaller.
- the radio resource using unit 201 of the base station 200 communicates with the terminals 100_2 and 100_3 of the groups A and B
- the radio resource 203 is sequentially allocated from the terminal 100_3 of the group B having the highest priority indicated by the input information (number). Use to communicate.
- the radio resource 203 is used to communicate with the terminal 100_1 and the terminal 100_3 as shown in the lower diagram of FIG.
- group A for example, virtual mobile network operator A
- group B for example, virtual mobile network operator B
- groups A and B can use the radio resources provided in the system of the present embodiment fairly.
- Radio resources In the above description, the radio resources (frequency bands) used by the radio resource use units 201 and 211 are two, but the number may not be two.
- the radio resource use units 201 and 211 may use two or more radio resources (frequency bands).
- the radio resource is described as being a frequency band, but the radio resource may be any one of a frequency band, a resource block, a code, or a combination.
- an MVNO virtual mobile communication operator
- the system according to the present embodiment causes the MVNO that uses a small amount of radio resources of each base station to preferentially use radio resources.
- the radio resource use means associates the radio resource to be used with an identifier indicating the group to which the terminal relates,
- the reporting means outputs the usage amount corresponding to the number of the radio resources associated with the identifier in association with the identifier for each identifier at the predetermined timing.
- the base station as set forth in Appendix 1, wherein (Appendix 3)
- the radio resource using means extracts the identifier from a predetermined message received from the terminal.
- the base station according to Supplementary Note 2, wherein (Appendix 4)
- the predetermined group is a predetermined virtual mobile carrier. 4.
- the base station according to any one of appendices 1 to 3, characterized in that: (Appendix 5) When a usage amount of a radio resource related to a predetermined group is input from at least one base station to be connected, each group corresponds to a predetermined number having a monotonically increasing relationship with the sum of the usage amounts related to the group Determining means for outputting information as information indicating the priority of the group; A server characterized by that.
- (Appendix 6) Management means for outputting, for each identifier indicating the group input from each of the base stations, a first value corresponding to the total amount of usage input related to the identifier in association with the identifier;
- the determination unit outputs the information corresponding to the predetermined number having a monotonically increasing relationship with the first value associated with each identifier input from the management unit.
- Appendix 5 characterized in that the server.
- the first value is a value obtained by dividing the total amount of usage by the number of all the radio resources provided in the connected base station.
- the base station and the server are connected,
- the base station is the base station according to any one of appendices 1 to 4,
- the server is the server according to any one of appendices 5 to 7, A system characterized by that.
- (Appendix 9) When a usage amount of a radio resource related to a predetermined group is input from at least one base station, information corresponding to a predetermined number having a monotonically increasing relationship with the total amount of the usage amount related to the group is obtained for each group. , Output as information indicating the priority of the group, When the base station communicates with a terminal of the group, the base station performs communication using the radio resources in order from the terminal of the group with the highest priority indicated by the input information.
- the radio resource is any one of a frequency band, a resource block, a code, or a combination. 5.
- the predetermined message is an RRC (Radio Resource Control) Connection Request defined in 3GPP (3rd Generation Partnership Project), or an RRC Connection Setup Complete.
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Abstract
Description
[概要]
本発明の第1の実施の形態におけるシステムでは、サーバが、接続する各基地局の無線リソース全て(以下、「全無線リソース」という)を、各MVNOがどの程度使用しているのか使用状況を把握する。そして、サーバは、全無線リソースを各MVNOが平均的に使用するよう、各MVNOの使用優先順位を決定する。具体的には、サーバは、全無線リソースの使用量の小さいMVNOについては使用優先順位の高いMVNOと決定し、使用量の大きいMVNOについては使用優先順位の低いMVNOと決定する。各基地局は、使用優先順位の高いMVNOに、各MVNOで共有する無線リソース(以下、「共有リソース」という)を優先して使用させる。
まず、本発明の第1の実施の形態におけるシステムの構成と機能について説明する。図2は、本発明の第1の実施の形態におけるシステムの構成例を示す図である。
本実施形態のシステムは、移動体通信システムであり、図2に示されるように、端末1_k(k=1~24)と、基地局2_1、2_2と、IPネットワーク3と、サーバ4と、MME5と、を備える。IPは、Internet Protocolの略称であり、MMEは、Mobility Management Entityの略称である。
端末1_k(k=1~24)は、MVNOを利用する一般的な端末であり、3GPP(3rd Generation Partnership Project)に準拠して動作する。
基地局2_1、2_2の機能を説明する。基地局2_1、2_2は、いずれも同じ機能を備えるので、代表して基地局2_1の機能について説明を行う。図3は、本発明の第1の実施形態におけるシステムの基地局2_1が使用する無線リソースの一例を示した図である。
基地局2_1は、一般的な基地局と同様、いくつかの無線リソースを使用することができる。
基地局2_1は、3GPPに準拠して動作する一般的な基地局機能を有する。すなわち、基地局2_1は、各MVNOの端末1_kから、接続を要求するメッセージを3GPPに準拠して受信する。
基地局2_1は、一定時間毎に、各MVNOが使用する無線リソースの使用量をサーバ4に通知する。
基地局2_1には、各MVNOの共用リソースを使用する優先順位(以下、「使用優先順位」という)がサーバ4から通知される。基地局2_1は、使用優先順位の高いMVNOに共有リソースを優先して使用させる。
(4-1)各MVNOの無線リソース使用率の算出
サーバ4には、各MVNOの無線リソースの使用量が、各基地局2_1、2_2各々から通知される。サーバ4は、各MVNOの無線リソースの使用量が通知されると、各MVNOが、全無線リソースの何パーセントを使用しているか、各MVNOの無線リソース使用率を算出する。全無線リソースとは、サーバ4に接続される基地局2_1、2_2の無線リソース全てのことである。
サーバ4は、算出した各MVNOの無線リソース使用率を基に、各MVNOの共有リソース使用優先順位を決定する。サーバ4は、無線リソース使用率がより低いMVNOについては使用優先順位をより高く、無線リソース使用率が高いMVNOについては使用優先順位をより低く決定する。各MVNOが平均的に全無線リソースを使用できるようにする為である。
図4は、本発明の第1の実施の形態におけるシステムに備わる基地局2_1の構成例を示す図である。
図5は、本発明の第1の実施の形態におけるシステムに備わるサーバ4の構成例を示す図である。
図6は、本発明の第1の実施の形態におけるシステムの動作を説明する為の図である。図6を用いて、本実施形態のシステムの詳細な動作を以下に説明する。
まず、端末1_1は、基地局2_1のセルに在圏すると、図6に示されるように、3GPPに規定される周知のアタッチ処理をMME5との間で行う(S1)。
上述のS1の動作は、端末1_1と基地局2_1の無線リソース使用部10によって、以下のS110~S113の通りに実現される。図7は、本発明の第1の実施の形態におけるシステムの動作(アタッチ時に実施する動作)を説明する為の図である。
まず、端末1_1は、図7に示されるように、周知のアタッチ処理において、自身が在圏するセルの基地局2_1に対し、接続要求メッセージ(具体的には、RRC Connection Request)を送信する(S110)。
上記では、端末1_1に関して説明を行ったが、他の端末1_2~端末1_12についても同様である。すなわち、他の端末1_2~端末1_12が在圏し、接続要求メッセージを送信すれば、基地局2_1は、同様に、上述のS111~S114を実施する。
基地局2_1が、各端末1_1~端末1_12に関して上述のS111~S114を実施した結果、無線リソース各々には、図8に示されるように、端末1_2~端末1_12から受信したMVNO情報が関連づけられる。
接続要求メッセージ以外のメッセージ(以下、「他の受信メッセージ」という)にも、MVNO情報が含まれることがある。無線リソース使用部10は、上述のS114の代わりに、端末1_1から他の受信メッセージを受信すると、そのメッセージからMVNO情報を抽出し、端末1_1と通信を行う為に使用した無線リソースに、抽出したMVNO情報を関連づけてもよい。他の受信メッセージとは、例えば、RRC Connection Setup Completeである。
(2-1)動作概要
次に、基地局2_1は、図6に示されるように、各MVNOが使用する無線リソースの数(以下、「各MVNOの無線リソースの使用量」という)をサーバ4へ通知する(S2)。
上述のS2は、基地局2_1の無線リソース使用量報告部12(以下、「報告部12」という)と有線側インターフェース部13によって、以下の通りに実行される。
基地局2_2は、基地局2_1と同じ動作を行う。その結果、基地局2_2は、基地局2_1と同様、各MVNOの無線リソースの使用量をサーバ4に通知する(S3)。
(4-1)動作概要
サーバ4は、各MVNOの無線リソースの使用量が各基地局2_1、2_2から通知されると、図6に示されるように、各MVNOが(本実施形態のシステムの)全無線リソースの何パーセントを使用しているか、各MVNOの無線リソース使用率を算出する(S4)。
上述のS4の動作は、サーバ4の基地局間インターフェース部40、使用状況管理部41によって、以下のS140~S142の通りに実現される。
図9は、本発明の第1の実施の形態におけるシステムの動作(サーバの動作)を説明する為の図である。
例えば、使用状況管理部41には、(基地局間インターフェース部40を介して)基地局2_1からMVNOAを示すMVNO情報と無線リソース使用数5が、基地局2_2からMVNOAを示すMVNO情報と無線リソース使用数10が入力されていたとする。
次に、使用状況管理部41は、上述のS141で記憶した各MVNOの無線リソース使用率とMVNO情報を、優先度決定部42に出力する(S142)。
図10は、サーバ4が記憶する各MVNOの無線リソース使用率の一例を示した図である。
上述のS141において、使用状況管理部41は、無線リソース使用数の合計値を全無線リソース数で除算したが、この除算を行わなくてもよい。後述のS150~S152の処理(各MVNOの優先順位の算出)に影響を与えないからである。除算を行わない場合、使用状況管理部41は、S141において、無線リソース使用数の合計値を、そのままMVNO情報と関連づけて記憶する。また、S141の後のS142において、使用状況管理部41は、上述の合計値を各MVNOの無線リソース使用率とみなし、MVNO情報と関連づけて、優先度決定部42に出力するものとする。
(5-1)動作概要
次に、サーバ4は、図6に示されるように、上述のS4で算出した各MVNOの無線リソース使用率を基に、各MVNOの共有リソースの使用優先順位を決定する(S5)。
上述のS5の動作は、サーバ4の優先度決定部42と、ポリシー通知部43によって、以下のS150~S152の通りに実現される。
まず、サーバ4の優先度決定部42は、図9に示されるように、各MVNOの無線リソース使用率とMVNO情報が入力されると、入力されたMVNO情報毎に、無線リソース使用率をそのまま使用優先順位を示す番号とする(S150)。
例えば、サーバ4の優先度決定部42に、MVNOAを示すMVNO情報と無線リソース使用率55(%)、MVNOBを示すMVNO情報と無線リソース使用率10(%)が入力されたとする。
次に、上述のS150の後、サーバ4の優先度決定部42は、MVNO情報毎に求めた使用優先順位を示す番号を、MVNO情報と関連づけ、図9に示されるように、ポリシー通知部43に出力する(S151)。
図11は、サーバ4のポリシー通知部43が出力する各MVNOの使用優先順位の一例を示した図である。使用状況管理部41は、例えば、図11のように、各MVNO情報と使用優先順位を示す番号を関連づけ、ポリシー通知部43に出力してもよい。
次に、上述のS5(S150~S152)の後、サーバ4は、図6に示されるように、各MVNOの使用優先順位を各基地局2_1、2_2に通知する(S6、S7)。
(7-1)動作概要
次に、各基地局2_1、2_2は、サーバ4から各MVNOの使用優先順位が通知されると、図6に示されるように、使用優先順位の高いMVNOに共有リソースを優先して使用させる(S8)。
上記のS8については、各基地局2_1、2_2に備わる無線リソース使用部10が以下のS170~S182を実施することで実現される。なお、以下のS170~S182では、代表して基地局2_1の動作が示されているが、基地局2_2でも同じ動作を行う。
(7-2-1-1)使用優先順位を記憶する動作
まず、基地局2_1の有線側インターフェース部13は、図12に示されるように、サーバ4からMVNO情報と使用優先順位を示す番号を受信すると、それらを無線リソース使用部10に出力する(S170)。
上述のS170~S172の後、基地局2_1は、端末(例えば、端末1_11)が自身に備わるセルに在圏し、その端末から接続要求メッセージを受信したとする。
(7-3-1)サーバ4の動作について
上述のS2、S3で説明した通り、サーバ4には、基地局2_1、2_2から無線リソースの使用量が一定の周期毎に繰り返し通知される。基地局2_1、2_2から無線リソースの使用量が通知される度に、サーバ4は、上述のS4~S7を実施するので、使用優先順位を示す番号とMVNO情報とを、基地局2_1、2_2に繰り返し送信することになる。
各基地局2_1、2_2の無線リソース使用部10は、使用優先順位を示す番号とMVNO情報がサーバ4から入力されると、S170~S172を実施する。すなわち、無線リソース使用部10は、入力された使用優先順位を示す番号とMVNO情報を関連づけ、新たな優先順位管理表として記憶する。その際、無線リソース使用部10は、それまでに記憶していた優先順位管理表を新たな優先順位管理表で上書き更新する。この処理は、上述のS174~S182よりも優先して実行される。
上述のS170~S182が実施された結果、共有リソースを含め、各基地局2_1、2_2の無線リソースは、使用優先順位のより高いMVNO(の端末)から順に使用されていく。すなわち、各基地局2_1、2_2の無線リソースは、無線リソースの使用率の低いMVNO(の端末)から順に使用されていく。無線リソースの使用率の低いMVNOが優先的に無線リソースを使用するので、各MVNOは、より公平に無線リソースを使用することができる。
なお、無線リソース使用部10は、上述のS171で新たな優先順位管理表を記憶した後、初めて上述のS178を実施するときには、以下の(I)~(III)の処理を行ってもよい。すなわち、無線リソース使用部10は、新たな優先順位管理表を記憶した後、初めてS178を実施するときには、受信バッファから抽出した接続要求メッセージ毎に、以下の(I)~(III)を行ってもよい。S178により処理メモリに格納する接続要求メッセージに、新たな優先順位管理表に示される最新の使用優先順位(を示す番号)を確実に関連づけることができる。
上述のS2において、基地局2_1、2_2の報告部12は、無線リソース使用数をMVNO情報と共にサーバ4に通知した。
上述のS141の処理において、使用状況管理部41は、無線リソースの使用数の合計値を全無線リソース数で除算した。使用状況管理部41は、無線リソースの使用数の合計値を、全無線リソース数ではなく、専用リソースの数で除算してもよい。専用リソースの数は、本実施形態のシステムの管理者によって使用状況管理部41に設定される。
本実施形態によれば、MVNOは、各基地局の無線リソースを、より公平にシェアすることができる。
図15は、本発明の第2の実施の形態におけるシステムの構成例を示す図である。以下に、第2の実施の形態のシステムの構成と動作について説明する。
(1)第2の実施形態のシステムの構成
第2の実施形態のシステムは、図15に示されるように、端末100_1~端末100_6と、基地局200、210と、サーバ300と、を備える。
基地局200は、無線リソース使用部201と、報告部202と、を備える。基地局210は、無線リソース使用部211と、報告部212と、を備える。
サーバ300は、図15に示されるように、決定部301を備える。
端末100_1~端末100_6は、所定のグループの端末である。所定のグループとは、所定の仮想移動体通信事業者のことであってもよい。
図16は、本発明の第2の実施の形態におけるシステムの基地局が使用する無線リソースを説明する為の図である。
次に、本実施形態のシステムの動作を説明する。
(1-1)基地局200、210の無線リソース使用動作
まず、基地局200、210の無線リソース使用部201、211は、各々、所定のグループA、Bの端末から接続要求メッセージを受信すると、無線リソース203、213を使用して上述の端末と通信を行う。
次に、基地局200、210の報告部202、212は、所定のタイミングになると、各グループの端末と通信を行う為に使用している無線リソースの使用量を、グループ毎に出力する。
上述の所定のタイミングは、一定間隔のタイミングであり、本実施形態のシステムの管理者によって、各基地局200、210の報告部202、212に設定される。
(2-1)サーバ300の動作
上述の(1-2)の基地局動作によって、サーバ300の決定部301には、接続する少なくとも1つの基地局200、201からグループA、Bに係る無線リソースの使用量が入力される。
(2-2-1)入力される無線リソースの使用量に関して
例えば、サーバ300には、基地局200からグループAに係る無線リソースの使用量(1個)が入力される。同様にサーバ300には、基地局210からグループAに係る無線リソースの使用量(1個)が入力され、さらに、グループBに係る無線リソースの使用量(1個)が入力される。このとき、グループAに係る無線リソースの使用量の総和は2個で、グループBに係る無線リソースの使用量の総和は1個である。
サーバ300の決定部301は、無線リソースの使用量の総和2個に対応する所定の番号100(位)を(グループAの優先順位を示す情報として)各基地局200、210に出力してもよい。同様に、サーバ300の決定部301は、無線リソースの使用量の総和1個に対応する所定の番号1(位)を(グループBの優先順位を示す情報として)各基地局200、210に出力してもよい。
(3-1)優先順位入力後の基地局200、210の動作
基地局200、210の無線リソース使用部201、211には、使用量の出力に応じてグループの優先順位を示す情報がサーバ300の決定部301から入力される。
例えば、基地局200の無線リソース使用部201に、グループAの優先順位を示す情報として番号100(位)が、グループBの優先順位を示す情報として番号1(位)が入力されたとする。入力された番号は、その数が小さいほど、優先順位が高い。
(4-1)本実施形態のシステムの動作まとめ
上記動作の結果、本実施形態のシステムに備わる全無線リソース4個は、図16の下図の通り、2個がグループAの端末と通信を行う為に使用され、2個がグループBの端末Bと通信を行う為に使用される。
特許文献1の移動体通信システムは、優先順位が入力されないので、グループAの端末100_2から無線リソースを使用して通信を行ってしまう。その結果、本実施形態のシステムに備わる全無線リソースは、図16の参考図の通り、3個がグループAの端末と通信を行う為に使用され、グループA(仮想移動体通信事業者A)が主に無線リソースを使用する結果となる。特許文献1の移動体通信システムにおいては、各グループA、B(仮想移動体通信事業者A、B)は、無線リソースを公平に使用することができなかった。
上記では、無線リソース使用部201、211が使用する無線リソース(周波数帯域)は2つとしたが、2つでなくてもよい。無線リソース使用部201、211は、2つ以上の無線リソース(周波数帯域)を使用してもよい。
本実施形態によれば、MVNO(仮想移動体通信事業者)は、各基地局の無線リソースを、より公平にシェアすることができる。
(付記1)
所定のグループの端末から接続要求メッセージを受信すると、通信を行うための無線リソースを使用して前記端末と通信を行う無線リソース使用手段と、
所定のタイミングになると、前記グループの前記端末と通信を行う為に使用している前記無線リソースの使用量を前記グループ毎に出力する報告手段と、を備え、
前記無線リソース使用手段は、前記出力に応じて前記グループの優先順位を示す情報が入力されると、前記端末と通信を行う際、前記情報が示す前記優先順位の高い前記グループの端末から順に前記無線リソースを使用して通信を行う、
ことを特徴とする基地局。
(付記2)
前記無線リソース使用手段は、使用する前記無線リソースと、前記端末が係る前記グループを示す識別子と、を関連づけ、
前記報告手段は、前記所定のタイミングになると、前記識別子毎に、前記識別子と関連づけられた前記無線リソースの数に対応する前記使用量を、前記識別子と関連づけて出力する、
ことを特徴とする付記1に記載の基地局。
(付記3)
前記無線リソース使用手段は、前記端末から受信した所定のメッセージから前記識別子を抽出する、
ことを特徴とする付記2に記載の基地局。
(付記4)
前記所定のグループは、所定の仮想移動体通信事業者である、
ことを特徴とする付記1乃至3のいずれか1項に記載の基地局。
(付記5)
接続する少なくとも1つの基地局から所定のグループに係る無線リソースの使用量が入力されると、前記グループ毎に、前記グループに係る前記使用量の総和と単調増加関係のある所定の番号に対応する情報を、前記グループの優先順位を示す情報として出力する決定手段を備える、
ことを特徴とするサーバ。
(付記6)
前記基地局各々から入力された前記グループを示す識別子毎に、前記識別子に関連して入力された前記使用量の総和に対応する第1の値を、前記識別子と関連づけて出力する管理手段と、を備え
前記決定手段は、前記管理手段から入力された前記識別子毎に、関連する前記第1の値と単調増加関係のある前記所定の番号に対応する前記情報を出力する、
ことを特徴とする付記5にサーバ。
(付記7)
前記第1の値は、前記使用量の総和を、接続する前記基地局に備わる全ての前記無線リソースの数で除算した値である、
ことを特徴とする付記6に記載のサーバ。
(付記8)
基地局とサーバとが接続され、
前記基地局は、付記1乃至4のいずれか1項に記載の基地局であり、
前記サーバは、付記5乃至7のいずれか1項に記載のサーバである、
ことを特徴とするシステム。
(付記9)
少なくとも1つの基地局から所定のグループに係る無線リソースの使用量が入力されると、前記グループ毎に、前記グループに係る前記使用量の総和と単調増加関係のある所定の番号に対応する情報を、前記グループの優先順位を示す情報として出力し、
前記基地局が、前記グループの端末と通信を行う際、入力された前記情報が示す前記優先順位の高い前記グループの端末から順に前記無線リソースを使用して通信を行う、
ことを特徴とする無線リソース使用方法。
(付記10)
所定のタイミングになると、前記グループの前記端末と通信を行う為に使用している前記無線リソースの使用量を前記グループ毎に出力する、
ことを特徴とする付記9に記載の無線リソース使用方法。
(付記11)
前記無線リソースは、周波数帯域、リソースブロック、符号のいずれか、又は組み合わせである、
ことを特徴とする付記1乃至4のいずれか1項に記載の基地局。
(付記12)
前記所定のメッセージは、3GPP(3rd Generation Partnership Project)に規定されるRRC(Radio Resource Control) Connection Request、又は、RRC Connection Setup Completeである、
ことを特徴とする付記3乃至4のいずれか1項、又は付記11に記載の基地局。
2_1、2_2、200、210 基地局
3 IPネットワーク
4、300 サーバ
5 MME
10、201、211 無線リソース使用部
11 メッセージ受信部
12 無線リソース使用量報告部
13 有線側インターフェース部
40 基地局間インターフェース部
41 使用状況管理部
42 優先度決定部
202、212 報告部
203、213 無線リソース
301 決定部
Claims (12)
- 所定のグループの端末から接続要求メッセージを受信すると、通信を行うための無線リソースを使用して前記端末と通信を行う無線リソース使用手段と、
所定のタイミングになると、前記グループの前記端末と通信を行う為に使用している前記無線リソースの使用量を前記グループ毎に出力する報告手段と、を備え、
前記無線リソース使用手段は、前記出力に応じて前記グループの優先順位を示す情報が入力されると、前記端末と通信を行う際、前記情報が示す前記優先順位の高い前記グループの端末から順に前記無線リソースを使用して通信を行う、
ことを特徴とする基地局。 - 前記無線リソース使用手段は、使用する前記無線リソースと、前記端末が係る前記グループを示す識別子と、を関連づけ、
前記報告手段は、前記所定のタイミングになると、前記識別子毎に、前記識別子と関連づけられた前記無線リソースの数に対応する前記使用量を、前記識別子と関連づけて出力する、
ことを特徴とする請求項1に記載の基地局。 - 前記無線リソース使用手段は、前記端末から受信した所定のメッセージから前記識別子を抽出する、
ことを特徴とする請求項2に記載の基地局。 - 前記所定のグループは、所定の仮想移動体通信事業者である、
ことを特徴とする請求項1乃至3のいずれか1項に記載の基地局。 - 接続する少なくとも1つの基地局から所定のグループに係る無線リソースの使用量が入力されると、前記グループ毎に、前記グループに係る前記使用量の総和と単調増加関係のある所定の番号に対応する情報を、前記グループの優先順位を示す情報として出力する決定手段を備える、
ことを特徴とするサーバ。 - 前記基地局各々から入力された前記グループを示す識別子毎に、前記識別子に関連して入力された前記使用量の総和に対応する第1の値を、前記識別子と関連づけて出力する管理手段と、を備え
前記決定手段は、前記管理手段から入力された前記識別子毎に、関連する前記第1の値と単調増加関係のある前記所定の番号に対応する前記情報を出力する、
ことを特徴とする請求項5にサーバ。 - 前記第1の値は、前記使用量の総和を、接続する前記基地局に備わる全ての前記無線リソースの数で除算した値である、
ことを特徴とする請求項6に記載のサーバ。 - 基地局とサーバとが接続され、
前記基地局は、請求項1乃至4のいずれか1項に記載の基地局であり、
前記サーバは、請求項5乃至7のいずれか1項に記載のサーバである、
ことを特徴とするシステム。 - 少なくとも1つの基地局から所定のグループに係る無線リソースの使用量が入力されると、前記グループ毎に、前記グループに係る前記使用量の総和と単調増加関係のある所定の番号に対応する情報を、前記グループの優先順位を示す情報として出力し、
前記基地局が、前記グループの端末と通信を行う際、入力された前記情報が示す前記優先順位の高い前記グループの端末から順に前記無線リソースを使用して通信を行う、
ことを特徴とする無線リソース使用方法。 - 所定のタイミングになると、前記グループの前記端末と通信を行う為に使用している前記無線リソースの使用量を前記グループ毎に出力する、
ことを特徴とする請求項9に記載の無線リソース使用方法。 - 前記無線リソースは、周波数帯域、リソースブロック、符号のいずれか、又は組み合わせである、
ことを特徴とする請求項1乃至4のいずれか1項に記載の基地局。 - 前記所定のメッセージは、3GPP(3rd Generation Partnership Project)に規定されるRRC(Radio Resource Control) Connection Request、又は、RRC Connection Setup Completeである、
ことを特徴とする請求項3乃至4のいずれか1項、又は請求項11に記載の基地局。
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