WO2015129300A1 - 装置 - Google Patents
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- WO2015129300A1 WO2015129300A1 PCT/JP2015/050379 JP2015050379W WO2015129300A1 WO 2015129300 A1 WO2015129300 A1 WO 2015129300A1 JP 2015050379 W JP2015050379 W JP 2015050379W WO 2015129300 A1 WO2015129300 A1 WO 2015129300A1
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- Prior art keywords
- wireless communication
- information
- band
- base station
- unit
- Prior art date
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/16—Deriving transmission power values from another channel
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
Definitions
- This disclosure relates to an apparatus.
- a 3G mobile phone service called the third generation was started in Japan. Initially, small-sized packets were sent and received for voice calls and email transmissions. However, with the introduction of HSDPA (High Speed Downlink Packet Access), larger-sized packets are sent and received for downloading music files and streaming video. With such an increase in packet capacity, LTE (Long Term Evolution) services that use OFDMA (Orthogonal Frequency Division Multiple Access) on the downlink have also started to expand on the wireless network side. In addition, 4G service is scheduled to start around 2015. As a result, a maximum of 1 Gbps (bit per second) can be realized semi-fixed, and a maximum of 100 Mbps can be realized even in a mobile environment. Further, for example, a wireless LAN (Local Area Network) access point is installed in a hot spot where traffic is concentrated locally, and traffic is offloaded.
- a wireless LAN Local Area Network
- cognitive radio technology exists as a technology for effective use of frequency bands.
- Patent Literature 1 discloses a wireless communication apparatus that determines a coverage of a first system based on a measurement value of a first system (eg, a broadcast system) and associated positional information, and is not within the coverage.
- a technique for permitting use of a frequency band is disclosed.
- Patent Document 2 discloses a technique for determining a frequency band used by a wireless communication device based on a usage state of a frequency band detected by a detection device.
- a frequency band can be shared between wireless communication of a wireless communication system such as a cellular system and other wireless communication such as wireless communication of a wireless LAN.
- the wireless communication of the cellular system can interfere with the wireless communication of the wireless LAN.
- movable wireless LAN access points for example, access routers
- measurement / detection related to such wireless LAN access points may be leaked.
- the wireless communication device uses a frequency band shared between the wireless communication of the wireless communication system and the other wireless communication
- the wireless communication in addition to the frequency band for the wireless communication system out of the shared frequency bands based on the acquisition unit that acquires the information provided by the apparatus and the information related to the other wireless communication.
- a control unit that determines an additional band that can be used for the wireless communication of the system.
- the acquisition unit that acquires information on the other wireless communication performed by the wireless communication device using a frequency band shared between the wireless communication of the wireless communication system and the other wireless communication. And another device that determines an additional band that can be used for the wireless communication of the wireless communication system in addition to the frequency band for the wireless communication system, among the shared frequency bands, A providing unit that provides the information related to the other wireless communication is provided so that the information related to the wireless communication can be acquired.
- the wireless of the wireless communication system In addition to the frequency band for the wireless communication system, among the frequency bands shared between the wireless communication of the wireless communication system and other wireless communication, the wireless of the wireless communication system An acquisition unit that acquires information indicating an additional band that can be used for communication, and controls the base station so that the base station of the wireless communication system performs the wireless communication of the wireless communication system using the additional band A control unit is provided.
- the additional band is information relating to the other wireless communication performed by the wireless communication device using the shared frequency band, and is determined based on the information provided by the wireless communication device. is there.
- the wireless communication device can be used for the wireless communication of the wireless communication system in a frequency band shared between the wireless communication of the wireless communication system and another wireless communication.
- a device comprising: a control unit that controls the wireless communication device so as not to perform the other wireless communication using the additional band while performing the wireless communication of the wireless communication system using the band Is provided.
- the wireless communication system it is possible to cause the wireless communication system to more appropriately use the frequency band shared between the wireless communication of the wireless communication system and other wireless communication.
- the above effects are not necessarily limited, and any of the effects shown in the present specification or other effects that can be grasped from the present specification are exhibited together with or in place of the above effects. May be.
- FIG. 2 is an explanatory diagram illustrating an example of a schematic configuration of a system according to an embodiment of the present disclosure.
- FIG. It is explanatory drawing for demonstrating the 1st example of the frequency band used for radio
- FIG. 10 is a sequence diagram showing an example of a schematic flow of a band addition process according to the embodiment. It is a flowchart which shows an example of the schematic flow of the additional band determination process which concerns on the same embodiment.
- It is a block diagram which shows an example of a schematic structure of a server. It is a block diagram which shows the 1st example of schematic structure of eNB. It is a block diagram which shows the 2nd example of schematic structure of eNB. It is a block diagram which shows an example of a schematic structure of a smart phone. It is a block diagram which shows an example of a schematic structure of a car navigation apparatus.
- FIG. 1 is an explanatory diagram illustrating an example of a schematic configuration of a system 1 according to the present embodiment.
- a system 1 includes a wireless communication device 100, an information processing device 200, a base station 300, and a wireless communication device 400.
- the base station 300 is a base station of a wireless communication system and performs wireless communication of the wireless communication system.
- the wireless communication system is, for example, a cellular system.
- the base station 300 performs wireless communication of a cellular system (hereinafter referred to as “cellular communication”) with the wireless communication device 100 and the wireless communication device 400.
- cellular communication a cellular system
- the wireless communication device 400 performs wireless communication of the wireless communication system (for example, a cellular system). For example, the wireless communication device 400 performs cellular communication with the base station 300 when located in the cell 30.
- the wireless communication system for example, a cellular system.
- the wireless communication device 400 can perform other wireless communication different from the wireless communication of the wireless communication system, for example.
- the other wireless communication is, for example, wireless communication according to the wireless LAN standard (hereinafter referred to as “wireless LAN communication”).
- wireless LAN communication wireless LAN standard
- the wireless communication device 400 performs wireless LAN communication with another device (not shown).
- the wireless communication device 100 performs other wireless communication different from the wireless communication of the wireless communication system (for example, cellular system).
- the other wireless communication is, for example, wireless LAN communication.
- the wireless communication device 100 performs wireless LAN communication with another wireless communication device (for example, the wireless communication device 10 or the like).
- the wireless LAN standard is, for example, any standard of the IEEE 802.11 series (for example, IEEE 802.11a, 11b, 11g, 11n, 11ac, and 11ad).
- the wireless communication device 100 performs wireless communication of the wireless communication system (for example, a cellular system). For example, when the wireless communication device 100 is located in the cell 30, the wireless communication device 100 performs cellular communication with the base station 300.
- the wireless communication system for example, a cellular system.
- the wireless communication device 100 operates as an access point. More specifically, for example, the wireless communication device 100 operates as a wireless LAN access point. And the radio
- the wireless communication device 100 may be a mobile router, a smartphone having a tethering function, or another type of device.
- the frequency band for the wireless communication system, and the frequency band shared between the wireless communication of the wireless communication system and the other wireless communication (hereinafter referred to as “shared band”) is prepared. Specifically, for example, a frequency band for a cellular system (hereinafter referred to as “cellular band”) and a shared band shared between cellular communication and wireless LAN communication are prepared.
- cellular band a frequency band for a cellular system
- shared band shared between cellular communication and wireless LAN communication
- FIG. 2 is an explanatory diagram for explaining a first example of a frequency band used for wireless communication.
- a cellular band 50 for a cellular system and a shared band 60 shared between cellular communication and wireless LAN communication are shown.
- the cellular band 50 is a band allocated to the cellular system.
- the cellular system employs TDD (Time Division Duplex)
- the cellular band 50 is a band for uplink and downlink.
- the cellular band 50 includes a plurality of component carriers (Component Carrier: CC).
- the shared band 60 includes one or more channels of the wireless LAN.
- the base station 300 and the wireless communication apparatus 400 perform cellular communication using the band 51 of the cellular band 50, and the base station 300 and the wireless communication apparatus 100 use the band 53 of the cellular band 50.
- Cellular communication Each of the band 51 and the band 53 is, for example, a CC.
- the wireless communication device 100 and the wireless communication device 10 perform wireless LAN communication using the band 61 of the shared band 60.
- the band 61 is, for example, a channel or a part of a channel.
- FIG. 3 is an explanatory diagram for explaining a second example of a frequency band used for wireless communication.
- a cellular band 50A and a cellular band 50B for a cellular system and a shared band 60 shared between cellular communication and wireless LAN communication are shown.
- the cellular bands 50A and 50B are bands allocated to the cellular system.
- the cellular system employs FDD (Frequency Division Duplex)
- the cellular band 50A is an uplink band
- the cellular band 50B is a downlink band.
- each of the cellular bands 50A and 50B includes a plurality of CCs.
- the shared band 60 includes one or more channels of the wireless LAN.
- the base station 300 and the wireless communication device 400 perform uplink communication using the band 51A of the cellular band 50A, and perform downlink communication using the band 51B of the cellular band 50B.
- the base station 300 and the wireless communication device 100 perform uplink communication using the band 53A of the cellular band 50A, and perform downlink communication using the band 53B of the cellular band 50B.
- Each of the bands 51A, 51B, 53A, and 53B is, for example, a CC.
- the wireless communication device 100 and the wireless communication device 10 perform wireless LAN communication using the band 61 of the shared band 60.
- the band 61 is, for example, a channel or a part of a channel.
- the frequency band (for example, cellular band) and the shared band for the wireless communication system are not limited to the examples shown in FIGS.
- the cellular band may include more bands.
- the cellular band may include 800 MHz band, 1.5 GHz band, and 2.1 GHz band.
- the shared band is not limited to a continuous band, and may include a discrete band.
- the cellular system Since the shared band is shared between the cellular communication and the wireless LAN communication, the cellular system does not affect the wireless LAN communication (for example, interference) or reduces the influence. It is required to use a shared band.
- the information processing apparatus 200 determines an additional band that can be used for wireless communication of the wireless communication system. For example, the information processing apparatus 200 determines an additional band that can be used for cellular communication in addition to the cellular band among the shared bands shared between the cellular communication and the wireless LAN communication. Note that the base station 300 performs cellular communication using the additional band determined by the information processing apparatus 200.
- the information processing apparatus 200 may determine a band that can be used by the individual base station 300 for radio communication of the radio communication system, among the frequency bands for the radio communication system. For example, the information processing apparatus 200 may determine a band that can be used for cellular communication by each individual base station 300 in the cellular band.
- the wireless communication system may employ HetNet (Heterogeneous Network) and determine the band for ICIC (Inter Cell Interference Coordination).
- FIG. 4 is a block diagram illustrating an example of the configuration of the wireless communication device 100 according to the present embodiment.
- the wireless communication apparatus 100 includes an antenna unit 110, a first wireless communication unit 120, an antenna unit 130, a second wireless communication unit 140, a storage unit 150, and a processing unit 160.
- the antenna unit 110 radiates the signal output from the first wireless communication unit 120 to the space as a radio wave. Further, the antenna unit 110 converts radio waves in the space into a signal and outputs the signal to the first wireless communication unit 120.
- the first wireless communication unit 120 transmits and receives signals in wireless communication of the wireless communication system.
- the wireless communication system is a cellular system, and the first wireless communication unit 120 transmits and receives signals in cellular communication.
- the first wireless communication unit 120 receives a downlink signal from the base station 300 and transmits an uplink signal to the base station 300.
- the antenna unit 130 radiates the signal output from the second wireless communication unit 140 to space as a radio wave. Further, the antenna unit 130 converts a radio wave in space into a signal and outputs the signal to the second wireless communication unit 140.
- the second wireless communication unit 140 transmits and receives signals in other wireless communication different from the wireless communication of the wireless communication system.
- the other wireless communication is wireless communication in accordance with the wireless LAN standard
- the second wireless communication unit 140 transmits and receives signals in wireless LAN communication.
- the second wireless communication unit 140 receives a signal from the wireless communication device 10 and transmits a signal to the wireless communication device 10.
- the storage unit 150 temporarily or permanently stores a program and data for the operation of the wireless communication device 100.
- the processing unit 160 provides various functions of the wireless communication device 100.
- the processing unit 160 includes an information acquisition unit 161 and an information provision unit 163. Note that the processing unit 160 may further include other components other than these components. That is, the processing unit 160 can perform operations other than the operations of these components.
- the information acquisition unit 161 uses the frequency band shared between the wireless communication of the wireless communication system and other wireless communication (that is, the shared band) by the wireless communication apparatus 100.
- Information related to the other wireless communication hereinafter referred to as “communication related information”.
- the wireless communication system is a cellular system
- the other wireless communication is wireless LAN communication. That is, the information acquisition unit 161 uses the shared band (band shared between the cellular communication and the wireless LAN communication) to obtain information related to the wireless LAN communication performed by the wireless communication device 100 (that is, communication related information). get.
- the shared band band shared between the cellular communication and the wireless LAN communication
- the communication related information includes information indicating the band used by the wireless communication device 100 in the shared band (hereinafter referred to as "used band information").
- the shared band is one or more channels for wireless LAN communication
- the used band information indicates a band used by the wireless communication apparatus 100 among the one or more channels.
- the band indicated by the use band information may be a band of a wireless LAN channel unit, or may be a band of a unit smaller than the channel.
- band information for example, it is possible to specify a band used by the wireless communication apparatus 100 (or a band not used by the wireless communication apparatus 100).
- the communication related information includes information (hereinafter referred to as "transmission power information") indicating the transmission power of the wireless communication apparatus 100 for the shared band.
- transmission power information indicates transmission power for each band used by the wireless communication device 100 in the shared band. According to such use band information, for example, it is possible to estimate the communication area of the wireless communication device 100, the reception power of a signal transmitted by the wireless communication device 100, and the like.
- the communication related information may include other information in addition to the use band information and / or the transmission power information or instead of the use band information and / or the transmission power information.
- the communication related information may include information indicating whether the wireless communication device 100 is using the shared band. According to such information, for example, it is possible to convey whether or not the shared band is used with a smaller amount of information. As an example, such information may be particularly effective when the state of the other wireless communication (for example, wireless LAN communication) of the wireless communication apparatus 100 is in a sleep state / dormant state.
- the communication related information may include another communication parameter other than the band used by the wireless communication device 100 and the transmission power of the wireless communication device 100.
- the communication parameter may include a communication method that is employed.
- the communication parameter may be presence / absence of frequency hopping.
- the communication parameter may include a time interval at which the state of the wireless communication apparatus 100 becomes a sleep state / dormant state.
- (B) Location specifying information For example, the information acquisition unit 161 further acquires location specifying information for specifying the location of the wireless communication device 100.
- the position specifying information includes information (hereinafter referred to as "GPS information") generated by a GPS (Global Positioning System) function of the wireless communication apparatus 100.
- GPS information Global Positioning System
- the wireless communication device 100 further includes a GPS function, and the information acquisition unit 161 acquires GPS information generated by the GPS function. According to such GPS information, for example, the detailed position of the wireless communication device 100 can be specified.
- the location specifying information may include identification information of a cell of the wireless communication system in which the wireless communication device 100 is located instead of the GPS information or together with the GPS information.
- the wireless communication system may be a cellular system, and the identification information may be a cell ID. According to such identification information, for example, it is possible to specify at least which cell the wireless communication apparatus 100 is located in.
- the position specifying information is a signal transmitted by a plurality of base stations of the wireless communication system instead of the GPS information and / or the identification information or together with the GPS information and / or the identification information.
- Information regarding reception power in the wireless communication apparatus 100 may be included.
- the received power information may be generated through measurement by the wireless communication apparatus 100, and the information acquisition unit 161 may acquire the generated received power information.
- the received power information may be received power of CRS (Cell-specific Reference Signal) transmitted by the plurality of base stations, more specifically, RSRP (Reference Signal Received Power). Also good.
- the received power information may be received power of pilot signals transmitted by the plurality of base stations, and more specifically may be RSCP (Received Signal Code Power).
- RSCP Received Signal Code Power
- the received power information for example, it is possible to estimate the detailed position of the wireless communication device 100 using the positions of the plurality of base stations. That is, a more detailed position of the wireless communication device 100 can be specified.
- the information providing unit 163 provides the communication related information so that the information processing apparatus 200 can acquire the communication related information.
- the information providing unit 163 provides the communication related information to the information processing apparatus 200 via the base station of the wireless communication system.
- the base station may be the base station 300 or another base station.
- the information providing unit 163 transmits the message addressed to the information processing device 200 including the communication related information via the first wireless communication unit 120, thereby transmitting the communication related information to the information processing device. 200.
- the information providing unit 163 may provide the communication related information to the base station, and the base station may provide the communication related information to the information processing apparatus 200.
- the base station may perform any processing on the communication related information and provide the information processing apparatus 200 with the processed communication related information.
- the base station may aggregate communication related information from one or more wireless communication devices 100 and provide the aggregated communication related information to the information processing device 200.
- the information providing unit 163 may provide the communication-related information to the information processing apparatus 200 not through the base station of the wireless communication system but via another route (for example, via a wireless LAN access point). Good.
- the information providing unit 163 provides the communication-related information in a predetermined cycle.
- the predetermined period may be a fixed period or a variable period.
- the information providing unit 163 may provide the communication-related information in response to the occurrence of a predetermined event instead of the provision at the predetermined period or along with the provision at the predetermined period.
- the predetermined event may be that the communication-related information changes beyond a predetermined level (for example, the band used by the wireless communication device 100 changes, or the transmission power of the wireless communication device 100 exceeds a predetermined width). May change). With such timing, for example, the communication related information can be provided as needed.
- the information providing unit 163 provides the communication-related information only while the wireless communication device 100 is using the shared band.
- the communication related information is provided to the information processing apparatus 200.
- the information processing apparatus 200 can know the state of wireless communication of the wireless communication apparatus 100. Therefore, the information processing apparatus 200 can estimate the influence of the wireless communication apparatus 100 on other wireless communication (for example, wireless LAN communication) by using the shared band by the wireless communication system (for example, cellular system).
- the wireless communication system for example, cellular system
- Provision of position specifying information For example, the information providing unit 163 provides the position specifying information so that the information processing apparatus 200 can specify the position of the wireless communication apparatus 100.
- the information providing unit 163 provides the position specifying information to the information processing apparatus 200 via the base station of the wireless communication system.
- the base station may be the base station 300 or another base station.
- the information providing unit 163 transmits the message addressed to the information processing apparatus 200 including the position specifying information via the first wireless communication unit 120, thereby the position specifying information is transmitted to the information processing apparatus. 200.
- the information providing unit 163 may provide the location specifying information to the base station.
- the base station may be the base station 300 or another base station.
- the base station may provide the position specifying information to the information processing apparatus 200.
- the base station may specify the position of the wireless communication apparatus 100 from the position specifying information and provide the information processing apparatus 200 with information indicating the specified position.
- the base station may aggregate position specifying information from one or more wireless communication apparatuses 100 and provide the collected position specifying information to the information processing apparatus 200.
- the information providing unit 163 provides the position specifying information in a predetermined cycle.
- the predetermined period may be a fixed period or a variable period.
- the information providing unit 163 may provide the communication-related information in response to the occurrence of a predetermined event instead of the provision at the predetermined period or along with the provision at the predetermined period.
- the predetermined event may be that the position specifying information changes beyond a predetermined level (for example, GPS information changes beyond a predetermined amount, or a cell ID changes).
- the finer the granularity of the position specifying information the higher the frequency of providing the position specifying information. With such timing, for example, the position specifying information can be provided as necessary.
- the information providing unit 163 provides the location specifying information only while the wireless communication device 100 is using the shared band.
- the position specifying information is provided together with the communication related information. More specifically, for example, a message including the position specifying information and the communication related information is transmitted by the wireless communication apparatus 100. Note that the position specifying information may be provided separately from the communication related information.
- the position specifying information is provided to the information processing apparatus 200.
- the information processing apparatus 200 can know the position of the wireless communication apparatus 100. Therefore, the information processing apparatus 200 estimates the influence of the wireless communication apparatus 100 on other wireless communication (for example, wireless LAN communication) by using the shared band by each base station of the wireless communication system (for example, cellular system). Can do.
- the wireless communication device 100 may further include components of the wireless communication device 400 (for example, the first control unit 461 and the second control unit 463).
- FIG. 5 is a block diagram illustrating an example of the configuration of the information processing apparatus 200 according to the present embodiment.
- the information processing apparatus 200 includes a communication unit 210, a storage unit 220, and a processing unit 230.
- the communication unit 210 communicates with other devices.
- the communication unit 210 communicates with the base station 300.
- the communication unit 210 communicates with the wireless communication device 100 (and the wireless communication device 400) via the base station 300.
- the communication unit 210 communicates with any core network node (for example, S-GW (Serving Gateway), P-GW (Packet data network Gateway), and / or MME (Mobility Management Entity), etc.) of the cellular system. May be.
- S-GW Serving Gateway
- P-GW Packet data network Gateway
- MME Mobility Management Entity
- the storage unit 220 temporarily or permanently stores a program and data for the operation of the information processing apparatus 200.
- the processing unit 230 provides various functions of the information processing apparatus 200.
- the processing unit 230 includes a device identification unit 231, an information acquisition unit 233, and a control unit 235. Note that the processing unit 230 may further include other components other than these components.
- (Device identification unit 231) (A) Identification of Radio Communication Device 100 Located Around Base Station 300 Device identification unit 231 identifies radio communication device 100 located around base station 300 based on the location of radio communication device 100.
- the wireless communication device 100 may use the position specifying information (ie, wireless communication) so that the information processing device 200 can specify the position of the wireless communication device 100. Information for specifying the position of the device 100). Then, the processing unit 230 (for example, the device specifying unit 231 or another component) specifies the position of the wireless communication device 100.
- the position specifying information ie, wireless communication
- the processing unit 230 specifies the position of the wireless communication device 100.
- the wireless communication system may specify the position of the wireless communication device 100 by itself.
- a base station for example, base station 300 to which the wireless communication apparatus 100 is connected specifies the position (detailed position) of the wireless communication apparatus 100 using technologies such as TA (Timing Advance) and AoA (Angle of Arrival). May be.
- the radio communication system may specify the cell of the base station to which the radio communication device 100 is connected as the position of the radio communication device 100.
- a position more detailed than a cell is specified as the position of radio communication apparatus 100 .
- the position specifying information includes the GPS information or the received power information
- a position that is more detailed than the cell is specified as the position of the wireless communication device 100.
- the device specifying unit 231 specifies the wireless communication device 100 located around the base station 300 based on the position of the wireless communication device 100 and the position of the base station 300. More specifically, for example, the device specifying unit 231 includes a wireless communication device 100 that is located in a region having a predetermined size centered on the position of the base station 300 and that is located around the base station 300. Specify as 100.
- the region having the predetermined size is, for example, a region having a predetermined shape (for example, a circle, an ellipse, or a rectangle) having a predetermined size (for example, 5 km 2 ) centered on the position of the base station 300.
- the area may change for each shared band.
- information indicating the position of the base station 300 is provided by the base station 300 and stored in the storage unit 220.
- the cell where the wireless communication apparatus 100 is located may be specified.
- the position specifying information includes only the cell ID, a cell may be specified as the position of the wireless communication device 100.
- the device specifying unit 231 replaces the wireless communication device 100 located in the cell 30 of the base station 300 (that is, the wireless communication device 100 that provided the cell ID of the base station 300) with the base station 300.
- You may specify as the wireless communication apparatus 100 located in the periphery.
- the radio communication device 100 located in the cell 30 of the base station 300 and a cell (not shown) adjacent to the cell 30 may be specified as the radio communication device 100 located around the base station 300.
- the device specifying unit 231 uses the shared band to perform other wireless communication (for example, wireless LAN communication). Based on the position of the communication device, the other wireless communication device located in the vicinity of the base station 300 is specified.
- the other wireless communication is, for example, wireless LAN communication
- the other wireless communication device is, for example, a wireless LAN access point.
- the specific method of the other wireless communication devices located around base station 300 is, for example, wireless communication located around base station 300 It is identical to any of the above-described examples of specific techniques for the device 100. Therefore, the overlapping description is omitted here.
- (Information acquisition unit 233) (A) Acquisition of communication related information about the wireless communication device 100
- the information acquisition unit 233 uses a frequency band (that is, a shared band) shared between the wireless communication of the wireless communication system and other wireless communication.
- the information related to the other wireless communication performed by the wireless communication apparatus 100 and the information provided by the wireless communication apparatus 100 (that is, communication related information) is acquired.
- the wireless communication system is a cellular system
- the other wireless communication is wireless LAN communication. That is, the information acquisition unit 233 uses the shared band (band shared between the cellular communication and the wireless LAN communication) to obtain information related to the wireless LAN communication performed by the wireless communication device 100 (that is, communication related information). get.
- the shared band band shared between the cellular communication and the wireless LAN communication
- the communication related information includes information indicating a band used by the wireless communication device 100 in the shared band (that is, used band information). Further, for example, the communication related information includes information indicating transmission power of the wireless communication device 100 for the shared band (that is, transmission power information).
- the communication related information may include other information in addition to the use band information and / or the transmission power information, or instead of the use band information and / or the transmission power information.
- the communication related information is provided to the information processing apparatus 200 by the wireless communication apparatus 100 (or the base station of the wireless communication system).
- the communication related information is stored in the storage unit 220.
- the information acquisition unit 233 acquires the communication related information from the storage unit 220 at any timing thereafter.
- the communication related information passes through a base station of the wireless communication system (for example, a cellular system).
- the information processing apparatus 200 can acquire the communication related information even when the wireless communication apparatus 100 moves.
- the information acquisition unit 233 acquires the communication-related information about the wireless communication device 100 located in the vicinity of the base station 300 (that is, the wireless communication device 100 specified by the device specifying unit 231), for example.
- the information acquisition unit 233 relates to the other wireless communication (for example, wireless LAN communication) performed by the other wireless communication device using the shared band. Get information.
- the information regarding the other wireless communication (for example, wireless LAN communication) performed by the other wireless communication device is, for example, the same information (for example, used) as the communication related information for the wireless communication device 100 Band information, transmission power information, and / or other communication parameters). Therefore, the overlapping description is omitted here.
- the information regarding the other wireless communication performed by the other wireless communication device is provided by the other wireless communication device and collected (for example, by the information processing device 200).
- the information is stored in the storage unit 220.
- the information acquisition unit 233 acquires the information from the storage unit 220 at any timing thereafter.
- Control unit 235 (A) Determination of additional band etc. Based on the communication related information, the control unit 235 can be used for the wireless communication of the wireless communication system in addition to the frequency band for the wireless communication system of the shared band. Determine the additional bandwidth.
- the wireless communication system is a cellular system
- the other wireless communication is wireless LAN communication. That is, the control unit 235 determines an additional band that can be used for cellular communication in addition to the cellular band in the shared band, based on the communication related information.
- the communication related information is information on the other wireless communication (for example, wireless LAN communication) performed by the wireless communication apparatus 100 using the shared band.
- the wireless communication device 100 here is a device located around the base station 300.
- the additional band is a band that can be used for radio communication of the base station 300. That is, the control unit 235 determines an additional band that can be used for the wireless communication of the base station 300 out of the additional bands, based on the communication related information about the wireless communication device 100 located in the vicinity of the base station 300. To do.
- Such determination of the additional bandwidth in units of base stations makes it possible to use the additional bandwidth more flexibly for wireless communication (for example, cellular communication) of the wireless communication system.
- control unit 235 determines the additional band and the usable transmission power for the additional band based on the communication related information.
- control unit 235 determines the maximum usable transmission power as the usable transmission power.
- the additional band includes a plurality of bands
- the control unit 235 determines usable transmission power for each of the plurality of bands.
- the transmission power that can be used in this way it becomes possible to determine the additional bandwidth that can be used more flexibly. For example, when a large transmission power is used for a certain frequency band, the interference becomes very large, but when a small transmission power is used, the interference becomes small, and the small transmission power is determined as the usable transmission power.
- the certain frequency band can be determined as an additional band.
- control unit 235 determines the additional band based on the communication related information and the positions of the base station 300 and the wireless communication device 100. Further, for example, the control unit 235 also determines usable transmission power for the additional band based on the communication related information and the positions of the base station 300 and the wireless communication device 100.
- the interference from the wireless communication of the base station 300 to the other wireless communication (for example, wireless LAN communication) of the wireless communication device 100 is estimated, and the additional band (and transmission power) is set so that the interference is reduced. It becomes possible to decide.
- the control unit 235 performs wireless communication from the wireless communication of the base station 300 based on the communication related information and the positions of the base station 300 and the wireless communication device 100.
- the communication apparatus 100 estimates interference with the other wireless communication, and determines the additional band (and usable transmission power for the additional band) based on the estimated interference. For example, the control unit 235 also determines usable transmission power for the additional band.
- the shared band includes a plurality of bands
- the control unit 235 selects one of the plurality of bands.
- the control unit 235 selects one transmission power candidate among the plurality of transmission power candidates of the base station 300.
- the control unit 235 uses the one band for the one transmission power candidate based on the communication-related information and the positions of the base station 300 and the wireless communication device 100. In this case, interference from the wireless communication of the base station 300 to the other wireless communication of the wireless communication apparatus 100 is estimated. In addition, the control unit 235 performs the other wireless communication performed by the other wireless communication apparatus using the shared band for each other wireless communication apparatus (for example, a wireless LAN access point) using the shared band. Based on the information related to communication and the positions of the base station 300 and the other wireless communication devices, the wireless communication of the base station 300 in the case where the one band is used for the one transmission power candidate, the other The interference of the wireless communication device with the other wireless communication is estimated.
- the control unit 235 is also provided. Adds the one band to the additional band.
- the SINR is estimated for each of the wireless communication devices 100 and each of the other wireless communication devices, and when any SINR exceeds the threshold, the control unit 235 adds the one band to the additional band.
- the control unit 235 when any one of the wireless communication devices 100 has a large interference with the other wireless communication, or when any other wireless communication device has a large interference with the other wireless communication, the control unit 235 Then, another transmission power candidate is selected from the plurality of transmission power candidates, and interference is estimated again as described above. If the interference is not sufficiently small for any transmission power candidate, the control unit 235 does not add the one band to the additional band.
- the control unit 235 performs the processing as described above for each of the plurality of bands included in the shared band.
- the additional band includes, for example, one or more bands among a plurality of bands included in the shared band (or does not include any band), and the control unit 235 finally includes the above-described band. Determine additional bandwidth.
- interference is estimated
- the present disclosure is not limited to such an example.
- no interference is estimated, and a band that is not used by the wireless communication device 100 and the other wireless communication device may be determined as the additional bandwidth.
- the control unit 235 determines the additional band. Specifically, for example, when the additional band request message from the base station 300 is received, the control unit 235 determines the additional band. Thereby, for example, according to the needs of the base station 300, the base station 300 can use the additional band.
- control unit 235 may determine the additional band at a different timing instead of the request timing from the base station 300 or together with the timing. For example, the control unit 235 may determine the additional band in response to the occurrence of another event.
- the other event may be a predetermined change of the wireless communication device 100 located around the base station 300 (for example, the number of the wireless communication devices 100 is less than a predetermined number). Further, the other event may be a predetermined change in the number of radio communication apparatuses 400 connected to the base station 300 or a predetermined change in the amount of traffic processed by the base station 300.
- the control unit 235 may determine the additional band at a predetermined cycle.
- the predetermined period may be a fixed period or a variable period.
- the additional bandwidth is determined.
- the radio communication system it is possible to cause the radio communication system to more appropriately use a frequency band shared between radio communication of the radio communication system and other radio communication. More specifically, for example, even when measurement / detection of the other wireless communication (for example, wireless LAN communication) of the wireless communication device 100 cannot be performed, the wireless communication by the wireless communication device 100 is considered. Therefore, the shared band can be used for wireless communication of the wireless communication system while suppressing interference between the wireless communication of the wireless communication system and the other wireless communication of the wireless communication apparatus 100.
- the shared band can be used for wireless communication of the wireless communication system while suppressing interference between the wireless communication of the wireless communication system and the other wireless communication of the wireless communication apparatus 100.
- the control unit 235 provides the base station 300 with information indicating the additional band (hereinafter referred to as “additional band information”).
- additional band information further indicates the determined transmission power (that is, usable transmission power for the additional band).
- control unit 235 provides the additional band information to the base station 300 after determining the additional band.
- control unit 235 provides the additional band information to the base station 300 via the communication unit 210. More specifically, for example, the control unit 235 provides the additional band information to the base station 300 by transmitting the additional band information to the base station 300 via the communication unit 210.
- the base station 300 can actually use the determined additional band.
- control unit 235 performs wireless communication of the base station 300 in the frequency band (for example, cellular band) for the wireless communication system in addition to the additional band in the shared band. The available bandwidth may be further determined. Then, the control unit 235 may provide the base station 300 with information indicating the band.
- the frequency band for example, cellular band
- one or more other base stations located around the base station 300 are specified (for example, by the device specifying unit 231).
- information related to wireless communication performed by the one or more other base stations using a frequency band (for example, a cellular band) for a wireless communication system for example, used band information, transmission power information, and / or others) (For example, by the information acquisition unit 233).
- the information is information provided in advance by the one or more other base stations.
- the control unit 235 determines the base of the frequency band (eg, cellular band) for the wireless communication system based on the information and the positions of the base station 300 and the one or more other base stations.
- the frequency band that can be used by the station 300 is determined.
- control unit 235 performs wireless communication of the base station 300 from wireless communication of the one or more other base stations for each of a plurality of bands included in the frequency band for the wireless communication system. Estimate interference. Then, control unit 235 determines a band with sufficiently small interference among the plurality of bands as a band that can be used for radio communication of base station 300. Then, the control unit 235 provides the base station 300 with information indicating the determined band.
- control unit 235 may determine a usable transmission power for the band as well as a usable band for the radio communication of the base station 300. For example, the control unit 235 determines a band and transmission power with sufficiently small interference among the plurality of bands as a band that can be used for wireless communication of the base station 300 and a transmission power that can be used for the band. May be. By determining the transmission power that can be used in this way, for example, it becomes possible to determine a usable band more flexibly.
- any one of the communication parameters of the one or more other base stations may be determined whether any one of the one or more other base stations needs to be changed. Then, when it is determined that the communication parameter needs to be changed, the control unit 235 may instruct another corresponding base station to change the communication parameter (for example, change of transmission power). The control unit 235 may determine the communication parameter of the corresponding other base station, and instruct the other base station corresponding to the determined communication parameter when instructing to change the communication parameter.
- FIG. 6 is a block diagram showing an example of the configuration of the base station 300 according to this embodiment.
- Base station 300 includes an antenna unit 310, a wireless communication unit 320, a network communication unit 330, a storage unit 340, and a processing unit 350.
- the antenna unit 310 radiates a signal output from the wireless communication unit 320 as a radio wave to space. Further, the antenna unit 310 converts radio waves in space into a signal and outputs the signal to the wireless communication unit 320.
- the wireless communication unit 320 transmits and receives signals in wireless communication of the wireless communication system.
- the wireless communication system is a cellular system, and the wireless communication unit 320 transmits and receives signals in cellular communication.
- the radio communication unit 320 transmits a downlink signal to the radio communication device and receives an uplink signal from the radio communication device.
- the network communication unit 330 communicates with other nodes.
- the network communication unit 330 communicates with the information processing apparatus 200.
- the network communication unit 330 may communicate with other base stations and / or core network nodes (for example, S-GW, P-GW, and / or MME).
- the storage unit 340 temporarily or permanently stores programs and data for the operation of the base station 300.
- the processing unit 350 provides various functions of the base station 300.
- the processing unit 350 includes a request unit 351, an information acquisition unit 353, and a control unit 355.
- the processing unit 350 may further include other components other than these components. That is, the processing unit 350 can perform operations other than the operations of these components.
- the request unit 351 requests the information processing apparatus 200 for an additional band that can be used for the wireless communication of the wireless communication system in addition to the frequency band for the wireless communication system in the shared band.
- the wireless communication system is a cellular system. That is, the request unit 351 requests the information processing apparatus 200 for an additional band that can be used for cellular communication in addition to the cellular band among the shared bands.
- the request unit 351 requests the information processing apparatus 200 for the additional bandwidth via the network communication unit 330. More specifically, for example, the request unit 351 requests the additional bandwidth from the information processing device 200 by transmitting an additional bandwidth request message to the information processing device 200 via the network communication unit 330.
- the request unit 351 requests the additional bandwidth according to the communication status of the base station 300, for example.
- the request unit 351 requests the additional band according to the traffic in the base station 300.
- the request unit 351 requests the additional bandwidth when the traffic exceeds a predetermined threshold.
- the request unit 351 receives position specifying information (for example, GPS information) for specifying the position of the base station 300 when requesting the additional band or separately from the request for the additional band. 200 may be provided.
- position specifying information for example, GPS information
- the information acquisition unit 353 acquires information indicating the additional band (that is, additional band information).
- the information processing apparatus 200 determines the additional band and provides the base station 300 with additional band information indicating the additional band. Then, the additional band information is stored in the storage unit 340. At any later timing, the information acquisition unit 353 acquires the additional band information from the storage unit 340.
- the additional band information also indicates usable transmission power for the additional band.
- Control unit 355 The control unit 355 controls the base station 300 so that the base station 300 performs the wireless communication of the wireless communication system using the additional band.
- the wireless communication system is a cellular system. That is, the control unit 355 controls the base station 300 so that the base station 300 performs cellular communication using the additional band.
- control unit 355 performs setting for use of the additional band. Specifically, for example, the control unit 355 sets the additional band indicated in the additional band information as a carrier (for example, component carrier (CC)) used by the base station 300. For example, the control unit 355 sets the transmission power indicated in the additional band information as the transmission power (for example, maximum transmission power) that the base station 300 can use for the additional band. For example, the control unit 355 also sets other communication parameters for use of the additional band.
- CC component carrier
- control unit 355 schedules the radio resources in the additional band.
- control unit 355 transmits data and control information via the wireless communication unit 320. More specifically, for example, the control unit 355 maps data and control information signals to radio resources according to scheduling. In addition, the control unit 355 generates a transmission signal (for example, an OFDMA signal) transmitted by the wireless communication unit 320 from the signal mapped to the radio resource.
- a transmission signal for example, an OFDMA signal
- the additional band is not used as a primary component carrier (PCC) for the wireless communication device, but is used as a secondary component carrier (PCC) for the wireless communication device.
- PCC primary component carrier
- PCC secondary component carrier
- the control unit 355 uses the additional band with the transmission power corresponding to the transmission power of the base station 300 for the frequency band (for example, cellular band) for the wireless communication system.
- the base station 300 is controlled to perform the wireless communication (for example, cellular communication) of the system.
- control unit 355 may add the additional band so that a difference between transmission power for the frequency band (for example, cellular band) for the wireless communication system and transmission power for the additional band is less than a predetermined threshold.
- the transmission power is, for example, transmission power per resource block.
- FIGS. 7 to 11 are explanatory diagrams for explaining first to fifth examples of the relationship between the transmission power of the cellular band and the transmission power of the additional band.
- the base station 300 uses a portion of the bandwidth of the cellular band 50 at the transmission power P 1.
- the transmission power P 2 available for additional band 63 of the shared bandwidth 60 is smaller than the transmission power P 1, the difference (P DIFF) and the transmission power P 1 and the transmission power P 2 is above a predetermined threshold value T in is there. Therefore, the base station 300 does not use the additional band 63.
- the base station 300 uses a part of the cellular band 50 with the transmission power P 1 .
- the transmission power P 2 available for additional band 63 of the shared bandwidth 60 is smaller than the transmission power P 1, the difference (P DIFF) and the transmission power P 1 and the transmission power P 2 is less than a predetermined threshold value T is there. Therefore, the base station 300, for example, to use an additional band 63 at the transmission power P 2.
- the base station 300 uses a portion of the bandwidth of the cellular band 50 at the transmission power P 1. Further, the usable transmission power P 2 for the additional band 63 in the shared band 60 is larger than the transmission power P 1 . Therefore, the base station 300, for example, to use an additional band 63 at the transmission power P 1.
- the base station 300 uses a portion of the bandwidth of the cellular band 50 at the transmission power P 1.
- the first available transmit power P 2A for band of the additional band 63 is smaller than the transmission power P 1, the difference between the transmission power P 1 and the transmission power P 2A is less than the predetermined threshold value T.
- the available transmit power P 2B for a second band of the additional band 63 is smaller than the transmission power P 1, the difference between the transmission power P 1 and the transmission power P 2B is larger than a predetermined threshold value T is there. Therefore, for example, the base station 300 uses the first band of the additional band 63 with the transmission power P 2A and does not use the second band of the additional band 63.
- the base station 300 uses a portion of the bandwidth of the cellular band 50 at the transmission power P 1.
- the available transmission power P 2A for the first band of the additional bands 63 is larger than the transmission power P 1 .
- the usable transmission power P 2B for the second band of the additional bands 63 is also larger than the transmission power P 1 . Therefore, the base station 300, for example, to use an additional band 63 at the transmission power P 1.
- a signal in a frequency band (for example, a cellular band) for a wireless communication system and a signal in the additional band are processed by a common receiving circuit in the wireless communication apparatus.
- a common receiving circuit in the wireless communication apparatus it is possible to avoid that one signal suppresses the other signal due to nonlinearity of the receiving circuit.
- FIG. 12 is a block diagram illustrating an example of the configuration of the wireless communication apparatus 400 according to the present embodiment.
- the wireless communication apparatus 400 includes an antenna unit 410, a first wireless communication unit 420, an antenna unit 430, a second wireless communication unit 440, a storage unit 450, and a processing unit 460.
- the antenna unit 410 radiates a signal output from the first wireless communication unit 420 to space as a radio wave. Further, the antenna unit 410 converts a radio wave in space into a signal and outputs the signal to the first wireless communication unit 420.
- the first wireless communication unit 420 transmits and receives signals in wireless communication of the wireless communication system.
- the wireless communication system is a cellular system, and the first wireless communication unit 420 transmits and receives signals in cellular communication.
- the first wireless communication unit 420 receives a downlink signal from the base station 300 and transmits an uplink signal to the base station 300.
- the antenna unit 430 radiates the signal output from the second wireless communication unit 440 to the space as a radio wave. Further, the antenna unit 430 converts a radio wave in space into a signal and outputs the signal to the second wireless communication unit 440.
- the second wireless communication unit 440 performs signal transmission / reception in another wireless communication different from the wireless communication of the wireless communication system.
- the other wireless communication is wireless communication in accordance with a wireless LAN standard, and the second wireless communication unit 440 transmits and receives signals in wireless LAN communication.
- the storage unit 450 temporarily or permanently stores a program and data for the operation of the wireless communication device 400.
- the processing unit 460 provides various functions of the wireless communication device 400.
- the processing unit 460 includes a first control unit 461 and a second control unit 463. Note that the processing unit 460 may further include other components other than these components. That is, the processing unit 460 can perform operations other than the operations of these components.
- the first control unit 461 uses the additional band in the shared band and the frequency band for the wireless communication system (for example, a cellular band) so that the wireless communication device 400 performs the wireless communication of the wireless communication system.
- the wireless communication device 400 is controlled to perform communication (for example, cellular communication).
- the base station 300 instructs the wireless communication apparatus 400 to add the additional band as the SCC of the wireless communication apparatus 400.
- the base station 300 instructs the radio communication apparatus 400 to add the additional band as an SCC of the radio communication apparatus 400 by an RRC reconfiguration message or a MAC control element.
- the first control unit 461 causes the wireless communication apparatus 400 to start using the additional band as the SCC.
- the second control unit 463 uses the additional band to perform the other wireless communication while the wireless communication apparatus 400 performs the wireless communication (for example, cellular communication) of the wireless communication system using the additional band.
- the wireless communication apparatus 400 is controlled so as not to perform communication (for example, wireless LAN communication).
- the second control unit 463 does not select the additional band as a channel to be newly used for wireless LAN communication. For example, when the base station 300 starts using the additional band for cellular communication, the second control unit 463 stops using the additional band for wireless LAN communication.
- wireless communication device 400 it is possible to avoid interference of other wireless communication (for example, wireless LAN communication) by the wireless communication device 400 with wireless communication (for example, cellular communication) of the wireless communication system by the wireless communication device 400.
- wireless communication for example, cellular communication
- the wireless communication device 400 may not perform wireless LAN communication using the shared band. Further, if cellular communication is not performed using the additional band, the base station 300 may perform wireless LAN communication using an arbitrary band of the shared band.
- the wireless communication device 400 may further include components of the wireless communication device 100 (for example, the information acquisition unit 161 and the information provision unit 163).
- FIG. 13 is a sequence diagram illustrating an example of a schematic flow of the information providing process according to the present embodiment.
- the wireless communication device 100 acquires position specifying information for specifying the position of the wireless communication device 100 (S501).
- the wireless communication device 100 uses the shared band shared between wireless communication (for example, cellular communication) and other wireless communication (for example, wireless LAN communication) of the wireless communication system.
- Information on the other wireless communication to be performed that is, communication related information
- the wireless communication device 100 provides the position specifying information and the communication related information to the information processing device 200 via the base station 300 (S505).
- the information processing apparatus 200 stores or updates the position specifying information and the communication related information (S507).
- FIG. 14 is a sequence diagram illustrating an example of a schematic flow of a band addition process according to the present embodiment.
- the base station 300 requests the information processing apparatus 200 for an additional band that can be used for radio communication (for example, cellular communication) of the radio communication system in addition to a frequency band (for example, cellular band) for the radio communication system ( S521). Specifically, for example, the base station 300 transmits an additional bandwidth request message to the information processing device 200.
- an additional band that can be used for radio communication (for example, cellular communication) of the radio communication system in addition to a frequency band (for example, cellular band) for the radio communication system ( S521).
- the base station 300 transmits an additional bandwidth request message to the information processing device 200.
- the information processing apparatus 200 performs an additional bandwidth determination process (S600). Thereby, the information processing apparatus 200 determines the additional band. Thereafter, the information processing apparatus 200 provides the base station 300 with additional band information indicating the determined additional band (S523).
- the base station 300 performs setting for using the additional band (S525).
- the base station 300 sets the additional band indicated in the additional band information as a carrier (for example, CC) used by the base station 300.
- the base station 300 sets the transmission power indicated in the additional band information as the transmission power (for example, maximum transmission power) that the base station 300 can use for the additional band.
- the control unit 355 also sets other communication parameters for use of the additional band.
- the base station 300 provides communication parameters for the base station 300 to the information processing apparatus 200 (S527).
- the communication parameters include additional bandwidth, transmission power, and / or other parameters.
- the information processing apparatus 200 stores or updates the communication parameters for the base station 300 (S529).
- FIG. 15 is a flowchart illustrating an example of a schematic flow of additional band determination processing according to the present embodiment.
- the device identifying unit 231 identifies the wireless communication device 100 located around the base station 300 based on the position of the wireless communication device 100 (S601).
- the information acquisition unit 233 acquires communication related information about the specified wireless communication device 100 (that is, the wireless communication device 100 located around the base station 300) (S603).
- the control unit 235 Based on the communication-related information and the positions of the base station 300 and the wireless communication device 100, the control unit 235 performs another wireless communication (for example, wireless LAN communication) from the wireless communication of the base station 300 to the wireless communication device 100. ) Is estimated (S605).
- another wireless communication for example, wireless LAN communication
- control unit 235 determines the additional band (and usable transmission power for the additional band) of the shared band based on the estimated interference (S607). Then, the process ends.
- the information processing apparatus 200 may be realized as any type of server such as a tower server, a rack server, or a blade server. Further, at least a part of the components of the information processing apparatus 200 is realized as a module mounted on a server (for example, an integrated circuit module configured by one die, or a card or blade inserted into a slot of a blade server). May be.
- the base station 300 may be realized as any type of eNB (evolved Node B) such as a macro eNB or a small eNB.
- the small eNB may be an eNB that covers a cell smaller than a macro cell, such as a pico eNB, a micro eNB, or a home (femto) eNB.
- the base station 300 may be realized as another type of base station such as Node B or BTS (Base Transceiver Station).
- the base station 300 may include a main body (also referred to as a base station apparatus) that controls wireless communication and one or more RRHs (Remote Radio Heads) that are arranged at locations different from the main body. Further, various types of terminals to be described later may operate as the base station 300 by temporarily or semipermanently executing the base station function.
- the wireless communication device (that is, each of the wireless communication device 100 and the wireless communication device 400) is a smartphone, a tablet PC (Personal Computer), a notebook PC, a portable game terminal, a portable / dongle-type mobile router, or It may be realized as a mobile terminal such as a digital camera or an in-vehicle terminal such as a car navigation device. Further, the wireless communication device may be realized as a terminal (also referred to as an MTC (Machine Type Communication) terminal) that performs M2M (Machine To Machine) communication. Furthermore, at least a part of the components of the wireless communication device may be realized as a module (for example, an integrated circuit module configured by one die) mounted on these terminals.
- MTC Machine Type Communication
- FIG. 16 is a block diagram illustrating an example of a schematic configuration of a server 700 to which the technology according to the present disclosure can be applied.
- the server 700 includes a processor 701, a memory 702, a storage 703, a network interface 704, and a bus 706.
- the processor 701 may be a CPU (Central Processing Unit) or a DSP (Digital Signal Processor), for example, and controls various functions of the server 700.
- the memory 702 includes a RAM (Random Access Memory) and a ROM (Read Only Memory), and stores programs and data executed by the processor 701.
- the storage 703 may include a storage medium such as a semiconductor memory or a hard disk.
- the network interface 704 is a wired communication interface for connecting the server 700 to the wired communication network 705.
- the wired communication network 705 may be a core network such as EPC (Evolved Packet Core) or a PDN (Packet Data Network) such as the Internet.
- EPC Evolved Packet Core
- PDN Packet Data Network
- the bus 706 connects the processor 701, the memory 702, the storage 703, and the network interface 704 to each other.
- the bus 706 may include two or more buses with different speeds (eg, a high speed bus and a low speed bus).
- the information acquisition unit 233 and the control unit 235 (and the device identification unit 231) described with reference to FIG. 5 may be implemented in the processor 701.
- a program for causing the processor to function as the information acquisition unit 233 and the control unit 235 (and the device specification unit 231) (in other words, the processor performs the operations of the information acquisition unit 233 and the control unit 235 (and the device specification unit 231)).
- a program to be executed may be installed in the server 700, and the processor 701 may execute the program.
- the server 700 may include a module including the processor 701 and the memory 702, and the information acquisition unit 233 and the control unit 235 (and the device specifying unit 231) may be mounted in the module.
- the module may store a program for causing the processor to function as the information acquisition unit 233 and the control unit 235 (and the device specifying unit 231) in the memory 702, and the processor 701 may execute the program.
- the server 700 or the module may be provided as a device including the information acquisition unit 233 and the control unit 235 (and the device specification unit 231), and the processor may be provided with the information acquisition unit 233 and the control unit 235 (and the device specification).
- the above-mentioned program for functioning as the unit 231) may be provided.
- a readable storage medium storing the program may be provided.
- FIG. 17 is a block diagram illustrating a first example of a schematic configuration of an eNB to which the technology according to the present disclosure may be applied.
- the eNB 800 includes one or more antennas 810 and a base station device 820. Each antenna 810 and the base station apparatus 820 can be connected to each other via an RF cable.
- Each of the antennas 810 has a single or a plurality of antenna elements (for example, a plurality of antenna elements constituting a MIMO antenna), and is used for transmission and reception of radio signals by the base station apparatus 820.
- the eNB 800 includes a plurality of antennas 810 as illustrated in FIG. 17, and the plurality of antennas 810 may respectively correspond to a plurality of frequency bands used by the eNB 800, for example. 17 shows an example in which the eNB 800 includes a plurality of antennas 810, the eNB 800 may include a single antenna 810.
- the base station apparatus 820 includes a controller 821, a memory 822, a network interface 823, and a wireless communication interface 825.
- the controller 821 may be a CPU or a DSP, for example, and operates various functions of the upper layer of the base station apparatus 820. For example, the controller 821 generates a data packet from the data in the signal processed by the wireless communication interface 825, and transfers the generated packet via the network interface 823. The controller 821 may generate a bundled packet by bundling data from a plurality of baseband processors, and may transfer the generated bundled packet. In addition, the controller 821 is a logic that executes control such as radio resource control, radio bearer control, mobility management, inflow control, or scheduling. May have a typical function. Moreover, the said control may be performed in cooperation with a surrounding eNB or a core network node.
- the memory 822 includes RAM and ROM, and stores programs executed by the controller 821 and various control data (for example, terminal list, transmission power data, scheduling data, and the like).
- the network interface 823 is a communication interface for connecting the base station device 820 to the core network 824.
- the controller 821 may communicate with the core network node or other eNB via the network interface 823.
- the eNB 800 and the core network node or another eNB may be connected to each other by a logical interface (for example, an S1 interface or an X2 interface).
- the network interface 823 may be a wired communication interface or a wireless communication interface for wireless backhaul.
- the network interface 823 may use a frequency band higher than the frequency band used by the wireless communication interface 825 for wireless communication.
- the wireless communication interface 825 supports any cellular communication scheme such as LTE (Long Term Evolution) or LTE-Advanced, and provides a wireless connection to terminals located in the cell of the eNB 800 via the antenna 810.
- the wireless communication interface 825 may typically include a baseband (BB) processor 826, an RF circuit 827, and the like.
- the BB processor 826 may perform, for example, encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing, and each layer (for example, L1, MAC (Medium Access Control), RLC (Radio Link Control), and PDCP).
- Various signal processing of Packet Data Convergence Protocol
- Packet Data Convergence Protocol is executed.
- the BB processor 826 may have some or all of the logical functions described above instead of the controller 821.
- the BB processor 826 may be a module that includes a memory that stores a communication control program, a processor that executes the program, and related circuits. The function of the BB processor 826 may be changed by updating the program. Good.
- the module may be a card or a blade inserted into a slot of the base station apparatus 820, or a chip mounted on the card or the blade.
- the RF circuit 827 may include a mixer, a filter, an amplifier, and the like, and transmits and receives a radio signal via the antenna 810.
- the radio communication interface 825 may include a plurality of BB processors 826 as illustrated in FIG. 17, and the plurality of BB processors 826 may respectively correspond to a plurality of frequency bands used by the eNB 800, for example. Further, the wireless communication interface 825 includes a plurality of RF circuits 827 as shown in FIG. 17, and the plurality of RF circuits 827 may correspond to, for example, a plurality of antenna elements, respectively.
- FIG. 17 shows an example in which the wireless communication interface 825 includes a plurality of BB processors 826 and a plurality of RF circuits 827. However, the wireless communication interface 825 includes a single BB processor 826 or a single RF circuit 827. But you can.
- the information acquisition unit 353 and the control unit 355 (and the request unit 351) described with reference to FIG. 6 may be implemented in the wireless communication interface 825.
- the controller 821 may be implemented in the eNB 800.
- the eNB 800 includes a module including a part (for example, the BB processor 826) or all of the wireless communication interface 825 and / or the controller 821, and the information acquisition unit 353 and the control unit 355 (and the request unit) in the module. 351) may be implemented.
- the module is a program for causing the processor to function as the information acquisition unit 353 and the control unit 355 (and the request unit 351) (in other words, the information acquisition unit 353 and the control unit 355 (and the request unit 351).
- Program for executing the above operation may be stored and the program may be executed.
- a program for causing a processor to function as the information acquisition unit 353 and the control unit 355 (and the request unit 351) is installed in the eNB 800, and the radio communication interface 825 (for example, the BB processor 826) and / or the controller 821 is installed. The program may be executed.
- the eNB 800, the base station apparatus 820, or the module may be provided as an apparatus including the information acquisition unit 353 and the control unit 355 (and the request unit 351), and the information acquisition unit 353 and the control unit 355 (in addition, a program for functioning as the request unit 351) may be provided. In addition, a readable storage medium storing the program may be provided.
- the radio communication unit 320 described with reference to FIG. 6 may be implemented in the RF circuit 827 in the radio communication interface 825.
- the antenna unit 310 described with reference to FIG. 6 may be mounted on the antenna 810.
- the network communication unit 330 described with reference to FIG. 6 may be implemented in the controller 821 and / or the network interface 823.
- FIG. 18 is a block diagram illustrating a second example of a schematic configuration of an eNB to which the technology according to the present disclosure may be applied.
- the eNB 830 includes one or more antennas 840, a base station apparatus 850, and an RRH 860. Each antenna 840 and RRH 860 may be connected to each other via an RF cable. Base station apparatus 850 and RRH 860 can be connected to each other via a high-speed line such as an optical fiber cable.
- Each of the antennas 840 has a single or a plurality of antenna elements (for example, a plurality of antenna elements constituting a MIMO antenna), and is used for transmission / reception of radio signals by the RRH 860.
- the eNB 830 includes a plurality of antennas 840 as illustrated in FIG. 18, and the plurality of antennas 840 may respectively correspond to a plurality of frequency bands used by the eNB 830, for example. 18 illustrates an example in which the eNB 830 includes a plurality of antennas 840, but the eNB 830 may include a single antenna 840.
- the base station device 850 includes a controller 851, a memory 852, a network interface 853, a wireless communication interface 855, and a connection interface 857.
- the controller 851, the memory 852, and the network interface 853 are the same as the controller 821, the memory 822, and the network interface 823 described with reference to FIG.
- the wireless communication interface 855 supports a cellular communication method such as LTE or LTE-Advanced, and provides a wireless connection to a terminal located in a sector corresponding to the RRH 860 via the RRH 860 and the antenna 840.
- the wireless communication interface 855 may typically include a BB processor 856 and the like.
- the BB processor 856 is the same as the BB processor 826 described with reference to FIG. 17 except that it is connected to the RF circuit 864 of the RRH 860 via the connection interface 857.
- the wireless communication interface 855 includes a plurality of BB processors 856 as illustrated in FIG. 18, and the plurality of BB processors 856 may respectively correspond to a plurality of frequency bands used by the eNB 830, for example. 18 shows an example in which the wireless communication interface 855 includes a plurality of BB processors 856, the wireless communication interface 855 may include a single BB processor 856.
- connection interface 857 is an interface for connecting the base station device 850 (wireless communication interface 855) to the RRH 860.
- the connection interface 857 may be a communication module for communication on the high-speed line that connects the base station apparatus 850 (wireless communication interface 855) and the RRH 860.
- the RRH 860 includes a connection interface 861 and a wireless communication interface 863.
- connection interface 861 is an interface for connecting the RRH 860 (wireless communication interface 863) to the base station device 850.
- the connection interface 861 may be a communication module for communication on the high-speed line.
- the wireless communication interface 863 transmits and receives wireless signals via the antenna 840.
- the wireless communication interface 863 may typically include an RF circuit 864 and the like.
- the RF circuit 864 may include a mixer, a filter, an amplifier, and the like, and transmits and receives wireless signals via the antenna 840.
- the wireless communication interface 863 includes a plurality of RF circuits 864 as shown in FIG. 18, and the plurality of RF circuits 864 may correspond to, for example, a plurality of antenna elements, respectively.
- 18 illustrates an example in which the wireless communication interface 863 includes a plurality of RF circuits 864, the wireless communication interface 863 may include a single RF circuit 864.
- the information acquisition unit 353 and the control unit 355 (and the request unit 351) described with reference to FIG. 6 may be implemented in the wireless communication interface 855 and / or the wireless communication interface 863. Alternatively, at least some of these components may be implemented in the controller 851. As an example, the eNB 830 includes a part of the wireless communication interface 855 (for example, the BB processor 856) or the entire module and / or a module including the controller 851, and the information acquisition unit 353 and the control unit 355 (and the request unit) in the module. 351) may be implemented.
- the module is a program for causing the processor to function as the information acquisition unit 353 and the control unit 355 (and the request unit 351) (in other words, the information acquisition unit 353 and the control unit 355 (and the request unit 351).
- Program for executing the above operation may be stored and the program may be executed.
- a program for causing the processor to function as the information acquisition unit 353 and the control unit 355 (and the request unit 351) is installed in the eNB 830, and the wireless communication interface 855 (for example, the BB processor 856) and / or the controller 851 is installed. The program may be executed.
- the eNB 830, the base station device 850, or the module described above may be provided as a device including the information acquisition unit 353 and the control unit 355 (and the request unit 351), and the information acquisition unit 353 and the control unit 355 (in addition, a program for functioning as the request unit 351) may be provided. In addition, a readable storage medium storing the program may be provided.
- wireless communication part 320 demonstrated with reference to FIG. 6 may be mounted in the radio
- the antenna unit 310 described with reference to FIG. 6 may be implemented in the antenna 840.
- the network communication unit 330 described with reference to FIG. 6 may be implemented in the controller 851 and / or the network interface 853.
- FIG. 19 is a block diagram illustrating an example of a schematic configuration of a smartphone 900 to which the technology according to the present disclosure can be applied.
- the smartphone 900 includes a processor 901, a memory 902, a storage 903, an external connection interface 904, a camera 905, a sensor 906, a microphone 907, an input device 908, a display device 909, a speaker 910, a cellular communication interface 911, an antenna switch 912, an antenna 913, A wireless LAN communication interface 914, an antenna switch 915, an antenna 916, a bus 920, a battery 921, and an auxiliary controller 922 are provided.
- the processor 901 may be, for example, a CPU or a SoC (System on Chip), and controls the functions of the application layer and other layers of the smartphone 900.
- the memory 902 includes a RAM and a ROM, and stores programs executed by the processor 901 and data.
- the storage 903 can include a storage medium such as a semiconductor memory or a hard disk.
- the external connection interface 904 is an interface for connecting an external device such as a memory card or a USB (Universal Serial Bus) device to the smartphone 900.
- the camera 905 includes an image sensor such as a CCD (Charge Coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor), and generates a captured image.
- the sensor 906 may include a sensor group such as a positioning sensor, a gyro sensor, a geomagnetic sensor, and an acceleration sensor.
- the microphone 907 converts audio input to the smartphone 900 into an audio signal.
- the input device 908 includes, for example, a touch sensor that detects a touch on the screen of the display device 909, a keypad, a keyboard, a button, or a switch, and receives an operation or information input from the user.
- the display device 909 has a screen such as a liquid crystal display (LCD) or an organic light emitting diode (OLED) display, and displays an output image of the smartphone 900.
- the speaker 910 converts an audio signal output from the smartphone 900 into audio.
- the cellular communication interface 911 supports any cellular communication method such as LTE or LTE-Advanced, and performs wireless communication.
- the cellular communication interface 911 may typically include a baseband (BB) processor, an RF (Radio Frequency) circuit, and the like.
- the BB processor may perform, for example, encoding / decoding, modulation / demodulation, multiplexing / demultiplexing, and performs various signal processing for wireless communication.
- the RF circuit may include a mixer, a filter, an amplifier, and the like, and transmits and receives wireless signals via the antenna 913.
- the cellular communication interface 911 may be a one-chip module in which a BB processor and an RF circuit are integrated.
- the cellular communication interface 911 may include a single BB processor or may include multiple BB processors. Further, the cellular communication interface 911 may include a single RF circuit or may include a plurality of RF circuits.
- the antenna switch 912 switches the connection destination of the antenna 913 among a plurality of circuits included in the cellular communication interface 911.
- the antenna 913 has a single or a plurality of antenna elements (for example, a plurality of antenna elements constituting a multiple-input and multiple-output (MIMO) antenna), and is used for transmitting and receiving radio signals by the cellular communication interface 911. used.
- MIMO multiple-input and multiple-output
- the wireless LAN communication interface 914 supports one or more wireless LAN standards such as IEEE802.11a, 11b, 11g, 11n, 11ac, and 11ad, and executes wireless communication.
- the wireless LAN communication interface 914 can communicate with other devices via a wireless LAN access point in the infrastructure mode.
- the wireless LAN communication interface 914 can directly communicate with other devices in the ad hoc mode.
- the wireless LAN communication interface 914 may typically include a BB processor and an RF circuit.
- the wireless LAN communication interface 914 may be a one-chip module in which a memory that stores a communication control program, a processor that executes the program, and related circuits are integrated.
- the antenna switch 915 switches the connection destination of the antenna 916 among a plurality of circuits included in the wireless LAN communication interface 914.
- the antenna 916 includes a single antenna element or a plurality of antenna elements (for example, a plurality of antenna elements constituting a MIMO antenna), and is used for transmission and reception of wireless signals by the wireless LAN communication interface 914.
- the smartphone 900 may have an antenna corresponding to each of the cellular communication interface 911 and the wireless LAN communication interface 914.
- the smartphone 900 may include a common antenna corresponding to the cellular communication interface 911 and the wireless LAN communication interface 914 without being limited to the example of FIG.
- the smartphone 900 includes a common antenna and an antenna switch corresponding to the cellular communication interface 911 and the wireless LAN communication interface 914 instead of including the antenna switch 912 and the antenna 913 and the antenna switch 915 and the antenna 916. Also good.
- the shared antenna may be connected to one of the cellular communication interface 911 and the wireless LAN communication interface 914 by the antenna switch.
- the smartphone 900 may have a cellular communication interface 911 and a wireless LAN communication interface 914 as separate modules.
- the smartphone 900 may include a one-chip module including the cellular communication interface 911 and the wireless LAN communication interface 914 without being limited to the example of FIG.
- the smartphone 900 may include an antenna and an antenna switch shared between the communication interfaces, or may include an antenna corresponding to each of the communication interfaces.
- the antenna switch 912 and the antenna switch 915 may be omitted from the configuration of the smartphone 900.
- the bus 920 includes a processor 901, a memory 902, a storage 903, an external connection interface 904, a camera 905, a sensor 906, a microphone 907, an input device 908, a display device 909, a speaker 910, a cellular communication interface 911, a wireless LAN communication interface 914, and an auxiliary device.
- Controllers 922 are connected to each other.
- the battery 921 supplies power to each block of the smartphone 900 shown in FIG. 19 through a power supply line partially shown by a broken line in the drawing.
- the auxiliary controller 922 operates the minimum necessary functions of the smartphone 900 in the sleep mode.
- the information acquisition unit 161 and the information provision unit 163 described with reference to FIG. 4 may be implemented in the processor 901.
- at least some of these components may be implemented in the auxiliary controller 922, the cellular communication interface 911, and / or the wireless LAN communication interface 914.
- a program for example, a device driver or an operating system (OS) for causing a processor to function as the information acquisition unit 161 and the information provision unit 163 is installed in the smartphone 900, and the processor 901, the auxiliary controller 922, and cellular communication
- the interface 911 and / or the wireless LAN communication interface 914 may execute the program.
- the smartphone 900 includes a module including a processor 901, an auxiliary controller 922, a part or all of the cellular communication interface 911, and / or a part or all of the wireless LAN communication interface 914.
- the acquisition unit 161 and the information providing unit 163 may be implemented.
- the module executes a program for causing the processor to function as the information acquisition unit 161 and the information provision unit 163 (in other words, a program for causing the processor to execute the operations of the information acquisition unit 161 and the information provision unit 163). You may memorize
- the smartphone 900 or the module may be provided as an apparatus including the information acquisition unit 161 and the information provision unit 163, and a program for causing the processor to function as the information acquisition unit 161 and the information provision unit 163 is provided. May be.
- a readable storage medium storing the program may be provided.
- the first wireless communication unit 120 described with reference to FIG. 4 may be implemented in the cellular communication interface 911.
- the antenna unit 110 may be mounted on the antenna 913.
- the second wireless communication unit 140 described with reference to FIG. 4 may be implemented in the wireless LAN communication interface 914.
- the antenna unit 130 may be mounted on the antenna 916.
- the second control unit 463 described with reference to FIG. 12 may be implemented in the wireless LAN communication interface 914.
- the second control unit 463 may be implemented in the processor 901 and / or the auxiliary controller 922.
- the smartphone 900 may include a module including the wireless LAN communication interface 914, the processor 901, and / or the auxiliary controller 922, and the second control unit 463 may be mounted in the module.
- the module stores a program for causing the processor to function as the second control unit 463 (in other words, a program for causing the processor to execute the operation of the second control unit 463), and executes the program. May be.
- a program for example, a device driver or an operating system (OS) for causing the processor to function as the second control unit 463 is installed in the smartphone 900, and the wireless LAN communication interface 914, the processor 901, and / or The auxiliary controller 922 may execute the program.
- the smartphone 900 or the module may be provided as a device including the second control unit 463, or a program for causing the processor to function as the second control unit 463 may be provided.
- a readable storage medium storing the program may be provided.
- the first wireless communication unit 420 described with reference to FIG. 12 may be implemented in the cellular communication interface 911.
- the antenna unit 410 may be mounted on the antenna 913.
- the second wireless communication unit 440 described with reference to FIG. 12 may be implemented in the wireless LAN communication interface 914.
- the antenna unit 430 may be mounted on the antenna 916.
- FIG. 20 is a block diagram illustrating an example of a schematic configuration of a car navigation device 930 to which the technology according to the present disclosure can be applied.
- the car navigation device 930 includes a processor 931, a memory 932, a GPS (Global Positioning System) module 933, a sensor 934, a data interface 935, a content player 936, a storage medium interface 937, an input device 938, a display device 939, a speaker 940, and cellular communication.
- An interface 941, an antenna switch 942, an antenna 943, a wireless LAN communication interface 944, an antenna switch 945, an antenna 946, and a battery 950 are provided.
- the processor 931 may be a CPU or SoC, for example, and controls the navigation function and other functions of the car navigation device 930.
- the memory 932 includes a RAM and a ROM, and stores programs executed by the processor 931 and data.
- the GPS module 933 measures the position (for example, latitude, longitude, and altitude) of the car navigation device 930 using a GPS signal received from a GPS satellite.
- the sensor 934 may include a sensor group such as a gyro sensor, a geomagnetic sensor, and an atmospheric pressure sensor.
- the data interface 935 is connected to the in-vehicle network 961 via a terminal (not shown), and acquires data generated on the vehicle side such as vehicle speed data.
- the content player 936 reproduces content stored in a storage medium (for example, CD or DVD) inserted into the storage medium interface 937.
- the input device 938 includes, for example, a touch sensor, a button, or a switch that detects a touch on the screen of the display device 939, and receives an operation or information input from the user.
- the display device 939 has a screen such as an LCD or an OLED display, and displays an image of a navigation function or content to be reproduced.
- the speaker 940 outputs a navigation function or audio of content to be played back.
- the cellular communication interface 941 supports any cellular communication method such as LTE or LTE-Advanced, and performs wireless communication.
- the cellular communication interface 941 may typically include a BB processor and an RF circuit.
- the BB processor may perform, for example, encoding / decoding, modulation / demodulation, multiplexing / demultiplexing, and performs various signal processing for wireless communication.
- the RF circuit may include a mixer, a filter, an amplifier, and the like, and transmits and receives a radio signal via the antenna 943.
- the cellular communication interface 941 may be a one-chip module in which a BB processor and an RF circuit are integrated.
- the cellular communication interface 941 may include a single BB processor or may include multiple BB processors. Further, the cellular communication interface 941 may include a single RF circuit or may include a plurality of RF circuits.
- the antenna switch 942 switches the connection destination of the antenna 943 among a plurality of circuits included in the cellular communication interface 941.
- the antenna 943 has a single or a plurality of antenna elements (for example, a plurality of antenna elements constituting a MIMO antenna), and is used for transmission / reception of a radio signal by the cellular communication interface 941.
- the wireless LAN communication interface 944 supports one or more wireless LAN standards such as IEEE802.11a, 11b, 11g, 11n, 11ac, and 11ad, and executes wireless communication.
- the wireless LAN communication interface 944 can communicate with other devices via a wireless LAN access point in the infrastructure mode.
- the wireless LAN communication interface 944 can directly communicate with other devices in the ad hoc mode.
- the wireless LAN communication interface 944 may typically include a BB processor and an RF circuit.
- the wireless LAN communication interface 944 may be a one-chip module in which a memory that stores a communication control program, a processor that executes the program, and related circuits are integrated.
- the antenna switch 945 switches the connection destination of the antenna 946 among a plurality of circuits included in the wireless LAN communication interface 944.
- the antenna 946 has a single or a plurality of antenna elements (for example, a plurality of antenna elements constituting a MIMO antenna), and is used for transmission and reception of a radio signal by the wireless LAN communication interface 944.
- the car navigation device 930 may have an antenna corresponding to each of the cellular communication interface 941 and the wireless LAN communication interface 944.
- the car navigation device 930 is not limited to the example of FIG. 20, and may have a common antenna corresponding to the cellular communication interface 941 and the wireless LAN communication interface 944.
- the car navigation apparatus 930 includes a common antenna and antenna switch corresponding to the cellular communication interface 941 and the wireless LAN communication interface 944 instead of including the antenna switch 942 and the antenna 943 and the antenna switch 945 and the antenna 946. May be.
- the shared antenna may be connected to one of the cellular communication interface 941 and the wireless LAN communication interface 944 by the antenna switch.
- the car navigation device 930 may have a cellular communication interface 941 and a wireless LAN communication interface 944 as separate modules.
- the car navigation device 930 may include a one-chip module including the cellular communication interface 941 and the wireless LAN communication interface 944 without being limited to the example of FIG.
- the car navigation device 930 may include an antenna and an antenna switch shared between the communication interfaces, or may include an antenna corresponding to each of the communication interfaces.
- the antenna switch 942 and the antenna switch 945 may be omitted from the configuration of the car navigation device 930.
- the battery 950 supplies power to each block of the car navigation device 930 shown in FIG. 20 via a power supply line partially shown by a broken line in the drawing. Further, the battery 950 stores electric power supplied from the vehicle side.
- the information acquisition unit 161 and the information provision unit 163 described with reference to FIG. 4 may be implemented in the processor 931.
- at least some of these components may be implemented in the cellular communication interface 941 and / or the wireless LAN communication interface 944.
- a program for example, a device driver or an OS
- the processor 931, the cellular communication interface 941, and / or the wireless The LAN communication interface 944 may execute the program.
- the car navigation apparatus 930 includes a module including the processor 931, a part or all of the cellular communication interface 941, and / or part or all of the wireless LAN communication interface 944, and an information acquisition unit in the module. 161 and the information providing unit 163 may be implemented.
- the module executes a program for causing the processor to function as the information acquisition unit 161 and the information provision unit 163 (in other words, a program for causing the processor to execute the operations of the information acquisition unit 161 and the information provision unit 163). You may memorize
- the car navigation apparatus 930 or the module may be provided as an apparatus including the information acquisition unit 161 and the information provision unit 163, and a program for causing the processor to function as the information acquisition unit 161 and the information provision unit 163 is provided. May be provided.
- a readable storage medium storing the program may be provided.
- the first wireless communication unit 120 described with reference to FIG. 4 may be implemented in the cellular communication interface 941. Further, the antenna unit 110 may be mounted on the antenna 943. In the car navigation device 930 illustrated in FIG. 20, the second wireless communication unit 140 described with reference to FIG. 4 may be implemented in the wireless LAN communication interface 944. The antenna unit 130 may be mounted on the antenna 946.
- the second control unit 463 described with reference to FIG. 12 may be implemented in the wireless LAN communication interface 944.
- the second control unit 463 may be implemented in the processor 931.
- the car navigation device 930 may include a module including a part or all of the wireless LAN communication interface 944 and / or the processor 931, and the second control unit 463 may be mounted in the module.
- the module stores a program for causing the processor to function as the second control unit 463 (in other words, a program for causing the processor to execute the operation of the second control unit 463), and executes the program. May be.
- a program for example, a device driver or an OS for causing the processor to function as the second control unit 463 is installed in the car navigation device 930, and the wireless LAN communication interface 944 and / or the processor 931 is installed in the program. May be executed.
- the car navigation device 930 or the module may be provided as a device including the second control unit 463, and a program for causing the processor to function as the second control unit 463 may be provided.
- a readable storage medium storing the program may be provided.
- the first wireless communication unit 420 described with reference to FIG. 12 may be implemented in the cellular communication interface 941. Further, the antenna unit 410 may be mounted on the antenna 943. In the car navigation device 930 illustrated in FIG. 20, the second wireless communication unit 440 described with reference to FIG. 12 may be implemented in the wireless LAN communication interface 944. Further, the antenna unit 430 may be mounted on the antenna 946.
- the technology according to the present disclosure may be realized as an in-vehicle system (or vehicle) 960 including one or more blocks of the car navigation device 930 described above, an in-vehicle network 961, and a vehicle side module 962.
- the in-vehicle system (or vehicle) 940 may be provided as a device that includes the information acquisition unit 161 and the information provision unit 163 (or the second control unit 463).
- the vehicle-side module 962 generates vehicle-side data such as vehicle speed, engine speed, or failure information, and outputs the generated data to the in-vehicle network 961.
- the wireless communication device 100 is configured to perform wireless communication (for example, cellular communication) in a wireless communication system (for example, cellular system) and other wireless communication (for example, wireless LAN communication).
- An information acquisition unit 161 that acquires information related to the other wireless communication performed by the wireless communication device 100 using a shared frequency band (that is, communication-related information), and the above-described frequency band of the shared frequency band
- Another device that is, information processing device 200
- the other wireless communication for example, wireless LAN communication
- the information i.e., the communication-related information
- the information comprises an information providing unit 163 for providing a.
- the information processing apparatus 200 performs wireless communication (for example, cellular communication) of a wireless communication system (for example, cellular system) and other wireless communication (for example, wireless LAN communication).
- the frequency band for example, cellular band
- a control unit 235 that determines an additional band that can be used for the wireless communication (for example, cellular communication) of the wireless communication system.
- the frequency band shared between the wireless communication of the wireless communication system and other wireless communication can be appropriately used by the wireless communication system.
- the information processing apparatus may be mounted on a base station.
- the device specifying unit, the information acquiring unit, and the control unit of the information processing apparatus may be provided by the base station.
- the other radio communication may be another radio communication in which radio resources are not allocated (in other words, other radio communication in which interference control is performed in a distributed manner). More specifically, for example, the other wireless communication may be another wireless communication with carrier sense.
- the steps in the processing of this specification do not necessarily have to be executed in chronological order in the order described in the flowchart or sequence diagram.
- the steps in the above process may be executed in an order different from the order described as a flowchart or a sequence diagram, or may be executed in parallel.
- a computer program for example, a computer program (for example, a CPU, a DSP, or the like) provided in a device (for example, an information processing device, a base station, and / or a wireless communication device) of this specification functions as a component of the device.
- a device for example, an information processing device, a base station, and / or a wireless communication device
- a storage medium storing the computer program may also be provided.
- An apparatus for example, a finished product or a module for a finished product (a component, a processing circuit, a chip, or the like)
- a memory that stores the computer program and one or more processors that can execute the computer program May also be provided.
- a method including the operation of the components of the apparatus is also included in the technology according to the present disclosure.
- the following configurations also belong to the technical scope of the present disclosure.
- Information on the other wireless communication performed by the wireless communication device using a frequency band shared between the wireless communication of the wireless communication system and the other wireless communication, the information provided by the wireless communication device An acquisition unit for acquiring information; Based on the information related to the other wireless communication, an additional band that can be used for the wireless communication of the wireless communication system is determined in addition to the frequency band for the wireless communication system among the shared frequency bands.
- a control unit; A device comprising: (2) The apparatus according to (1), wherein the control unit determines the additional band and usable transmission power for the additional band based on the information related to the other wireless communication.
- the apparatus according to (1) or (2), wherein the information related to the other wireless communication includes information indicating a band used by the wireless communication apparatus in the shared frequency band.
- the information related to the other wireless communication includes information indicating transmission power of the wireless communication apparatus for the shared frequency band.
- the information related to the other wireless communication includes information indicating whether or not the wireless communication device uses the shared frequency band. apparatus.
- the wireless communication device is a device located around a base station of the wireless communication system
- the additional band is a band that can be used for radio communication of the base station.
- the apparatus according to any one of (1) to (6).
- the said control part is an apparatus as described in said (7) or (8) which determines the said additional zone
- the control unit estimates interference from the base station radio communication to the other radio communication based on the information related to the other radio communication, and based on the estimated interference, The apparatus according to (7) or (8), wherein the additional band is determined.
- the wireless communication system is a cellular system;
- the other wireless communication is wireless communication according to a wireless LAN (Local Area Network) standard.
- the apparatus according to any one of (1) to (10).
- An acquisition unit that acquires information on the other wireless communication performed by the wireless communication device using a frequency band shared between the wireless communication of the wireless communication system and the other wireless communication;
- the other device for determining an additional band that can be used for the wireless communication of the wireless communication system in addition to the frequency band for the wireless communication system among the shared frequency bands is related to the other wireless communication.
- a device comprising: (13) The acquisition unit further acquires position specifying information for specifying the position of the wireless communication device, The providing unit provides the position specifying information so that the other apparatus can specify the position of the wireless communication apparatus; The apparatus according to (12) above.
- the location specifying information includes identification information of a cell of the wireless communication system in which the wireless communication device is located.
- the position specifying information includes information related to received power at the wireless communication device of signals transmitted by a plurality of base stations of the wireless communication system, according to any one of (13) to (15). apparatus.
- an additional band that can be used for the wireless communication of the wireless communication system in addition to the frequency band for the wireless communication system
- a control unit that controls the base station so that the base station of the wireless communication system performs the wireless communication of the wireless communication system using the additional band;
- the additional band is information related to the other wireless communication performed by the wireless communication device using the shared frequency band, and is determined based on the information provided by the wireless communication device. is there, apparatus.
- the control unit performs the wireless communication of the wireless communication system using the additional band with transmission power corresponding to the transmission power of the base station for the frequency band for the wireless communication system.
- the wireless communication device uses the additional band that can be used for the wireless communication of the wireless communication system, among the frequency bands shared between the wireless communication of the wireless communication system and the other wireless communication.
- a device comprising:
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Abstract
Description
1.システムの概略的な構成
2.各装置の構成
2.1.無線通信装置の構成
2.2.情報処理装置の構成
2.3.基地局の構成
2.4.無線通信装置の構成
3.処理の流れ
4.応用例
4.1.情報処理装置に関する応用例
4.2.基地局に関する応用例
4.3.無線通信装置に関する応用例
5.まとめ
まず、図1~図3を参照して、本開示の実施形態に係るシステム1の概略的な構成を説明する。図1は、本実施形態に係るシステム1の概略的な構成の一例を示す説明図である。図1を参照すると、システム1は、無線通信装置100、情報処理装置200、基地局300及び無線通信装置400を含む。
基地局300は、無線通信システムの基地局であり、当該無線通信システムの無線通信を行う。上記無線通信システムは、例えば、セルラーシステムである。例えば、基地局300は、無線通信装置100及び無線通信装置400と、セルラーシステムの無線通信(以下、「セルラー通信」と呼ぶ)を行う。
無線通信装置400は、上記無線通信システム(例えば、セルラーシステム)の無線通信を行う。例えば、無線通信装置400は、セル30内に位置する場合に、基地局300とのセルラー通信を行う。
無線通信装置100は、上記無線通信システム(例えば、セルラーシステム)の無線通信とは異なる他の無線通信を行う。当該他の無線通信は、例えば、無線LAN通信である。例えば、無線通信装置100は、他の無線通信装置(例えば、無線通信装置10など)と、無線LAN通信を行う。なお、無線LAN規格は、例えば、IEEE802.11シリーズ(例えば、IEEE802.11a、11b、11g、11n、11ac及び11adなど)のいずれかの規格である。
上記無線通信システム用の周波数帯域、及び、上記無線通信システムの無線通信と上記他の無線通信との間で共用(share)される周波数帯域(以下、「共用帯域(shared band)」と呼ぶ)が、用意される。具体的には、例えば、セルラーシステム用の周波数帯域(以下、「セルラー帯域」と呼ぶ)、及び、セルラー通信と無線LAN通信との間で共用される共用帯域が、用意される。以下、この点について、図2及び図3を参照して具体例を説明する。
情報処理装置200は、上記共用帯域のうちの、上記無線通信システム用の周波数帯域に加えて上記無線通信システムの無線通信に使用可能な追加帯域を決定する。例えば、情報処理装置200は、セルラー通信と無線LAN通信との間で共用される共用帯域のうちの、セルラー帯域に加えてセルラー通信に使用可能な追加帯域を決定する。なお、基地局300は、情報処理装置200により決定される当該追加帯域を使用して、セルラー通信を行う。
続いて、図4~図12を参照して、本開示の実施形態に係る各装置の構成を説明する。
まず、図4を参照して、本実施形態に係る無線通信装置100の構成の一例を説明する。図4は、本実施形態に係る無線通信装置100の構成の一例を示すブロック図である。無線通信装置100は、アンテナ部110、第1無線通信部120、アンテナ部130、第2無線通信部140、記憶部150及び処理部160を含む。
アンテナ部110は、第1無線通信部120により出力される信号を電波として空間に放射する。また、アンテナ部110は、空間の電波を信号に変換し、当該信号を第1無線通信部120へ出力する。
第1無線通信部120は、無線通信システムの無線通信における信号の送受信を行う。例えば、当該無線通信システムは、セルラーシステムであり、第1無線通信部120は、セルラー通信における信号の送受信を行う。具体的には、例えば、第1無線通信部120は、基地局300からのダウンリンク信号を受信し、基地局300へのアップリンク信号を送信する。
アンテナ部130は、第2無線通信部140により出力される信号を電波として空間に放射する。また、アンテナ部130は、空間の電波を信号に変換し、当該信号を第2無線通信部140へ出力する。
第2無線通信部140は、無線通信システムの無線通信とは異なる他の無線通信における信号の送受信を行う。例えば、上記他の無線通信は、無線LAN規格に従った無線通信であり、第2無線通信部140は、無線LAN通信における信号の送受信を行う。具体的には、例えば、第2無線通信部140は、無線通信装置10からの信号を受信し、無線通信装置10への信号を送信する。
記憶部150は、無線通信装置100の動作のためのプログラム及びデータを一時的に又は恒久的に記憶する。
処理部160は、無線通信装置100の様々な機能を提供する。処理部160は、情報取得部161及び情報提供部163を含む。なお、処理部160は、これらの構成要素以外の他の構成要素をさらに含み得る。即ち、処理部160は、これらの構成要素の動作以外の動作も行い得る。
(a)通信関連情報の取得
情報取得部161は、無線通信システムの無線通信と他の無線通信との間で共用される周波数帯域(即ち、共用帯域)を使用して無線通信装置100により行われる上記他の無線通信に関する情報(以下、「通信関連情報」と呼ぶ)を取得する。
例えば、上記通信関連情報は、上記共用帯域のうちの無線通信装置100が使用している帯域を示す情報(以下、「使用帯域情報」と呼ぶ)を含む。
例えば、上記通信関連情報は、上記共用帯域についての無線通信装置100の送信電力を示す情報(以下、「送信電力情報」と呼ぶ)を含む。例えば、上記使用帯域情報は、共用帯域のうちの無線通信装置100が使用する帯域ごとの送信電力を示す。このような使用帯域情報によれば、例えば、無線通信装置100の通信エリア、及び無線通信装置100により送信される信号の受信電力などを推定することが可能になる。
なお、上記通信関連情報は、上記使用帯域情報及び/又は上記送信電力情報に加えて、又は上記使用帯域情報及び/又は上記送信電力情報の代わりに、別の情報を含んでもよい。
例えば、情報取得部161は、無線通信装置100の位置を特定するための位置特定情報をさらに取得する。
例えば、上記位置特定情報は、無線通信装置100のGPS(Global Positioning System)機能により生成される情報(以下、「GPS情報」と呼ぶ)を含む。この場合に、無線通信装置100は、GPS機能をさらに備え、情報取得部161は、当該GPS機能により生成されるGPS情報を取得する。このようなGPS情報によれば、例えば、無線通信装置100の詳細な位置を特定することが可能になる。
上記位置特定情報は、上記GPS情報の代わりに、又は上記GPS情報とともに、無線通信装置100が位置する無線通信システムのセルの識別情報を含んでもよい。上記無線通信システムはセルラーシステムであり、上記識別情報は、セルIDであってもよい。このような識別情報によれば、例えば、無線通信装置100がどのセルに位置するかを少なくとも特定することが可能になる。
上記位置特定情報は、上記GPS情報及び/又は上記識別情報の代わりに、又は上記GPS情報及び/又は上記識別情報とともに、上記無線通信システムの複数の基地局により送信される信号の無線通信装置100での受信電力に関する情報(以下、「受信電力情報」と呼ぶ)を含んでもよい。この場合に、上記受信電力情報は、無線通信装置100による測定(measurement)を通じて生成され、情報取得部161は、生成される当該受信電力情報を取得してもよい。例えば、当該受信電力情報は、上記複数の基地局により送信されるCRS(Cell-specific Reference Signal)の受信電力であってもよく、より具体的には、RSRP(Reference Signal Received Power)であってもよい。あるいは、当該受信電力情報は、上記複数の基地局により送信されるパイロット信号の受信電力であってもよく、より具体的には、RSCP(Received Signal Code Power)であってもよい。このような受信電力情報によれば、例えば、上記複数の基地局の位置を用いて、無線通信装置100の詳細な位置を推定することが可能になる。即ち、無線通信装置100のより詳細な位置が特定され得る。
(a)通信関連情報の提供
情報提供部163は、情報処理装置200が上記通信関連情報を取得できるように、上記通信関連情報を提供する。
第1の例として、情報提供部163は、上記無線通信システムの基地局経由で、情報処理装置200に上記通信関連情報を提供する。当該基地局は、基地局300であってもよく、又は別の基地局であってもよい。具体的には、例えば、情報提供部163は、上記通信関連情報を含む情報処理装置200宛のメッセージを、第1無線通信部120を介して送信することにより、上記通信関連情報を情報処理装置200に提供する。
例えば、情報提供部163は、所定の周期で上記通信関連情報を提供する。当該所定の周期は、固定的な周期であってもよく、又は可変の周期であってもよい。
例えば、情報提供部163は、無線通信装置100が上記共用帯域を使用している間に限り、上記通信関連情報を提供する。
例えば、情報提供部163は、情報処理装置200が無線通信装置100の位置を特定できるように、上記位置特定情報を提供する。
第1の例として、情報提供部163は、上記無線通信システムの基地局経由で、情報処理装置200に上記位置特定情報を提供する。当該基地局は、基地局300であってもよく、又は別の基地局であってもよい。具体的には、例えば、情報提供部163は、上記位置特定情報を含む情報処理装置200宛のメッセージを、第1無線通信部120を介して送信することにより、上記位置特定情報を情報処理装置200に提供する。
例えば、情報提供部163は、所定の周期で上記位置特定情報を提供する。当該所定の周期は、固定的な周期であってもよく、又は可変の周期であってもよい。
例えば、情報提供部163は、無線通信装置100が上記共用帯域を使用している間に限り、上記位置特定情報を提供する。
なお、例えば、上記位置特定情報は、上記通信関連情報とともに提供される。より具体的には、例えば、上記位置特定情報及び上記通信関連情報を含むメッセージが無線通信装置100により送信される。なお、上記位置特定情報は、上記通信関連情報とは別に提供されてもよい。
次に、図5を参照して、本実施形態に係る情報処理装置200の構成の一例を説明する。図5は、本実施形態に係る情報処理装置200の構成の一例を示すブロック図である。情報処理装置200は、通信部210、記憶部220及び処理部230を備える。
通信部210は、他の装置と通信する。例えば、通信部210は、基地局300と通信する。また、例えば、通信部210は、基地局300を介して無線通信装置100(及び無線通信装置400)と通信する。また、通信部210は、セルラーシステムのいずれかのコアネットワークノード(例えば、S-GW(Serving Gateway)、P-GW(Packet data network Gateway)、及び/又はMME(Mobility Management Entity)など)と通信してもよい。
記憶部220は、情報処理装置200の動作のためのプログラム及びデータを一時的に又は恒久的に記憶する。
処理部230は、情報処理装置200の様々な機能を提供する。処理部230は、装置特定部231、情報取得部233及び制御部235を含む。なお、処理部230は、これらの構成要素以外の他の構成要素をさらに含み得る。
(a)基地局300の周辺に位置する無線通信装置100の特定
装置特定部231は、無線通信装置100の位置に基づいて、基地局300の周辺に位置する無線通信装置100を特定する。
上述したように、例えば、無線通信装置100は、情報処理装置200が無線通信装置100の位置を特定できるように、上記位置特定情報(即ち、無線通信装置100の位置を特定するための情報)を提供する。そして、処理部230(例えば、装置特定部231又は別の構成要素)は、無線通信装置100の位置を特定する。
--セルよりも詳細な位置が特定可能なケース
例えば、無線通信装置100の位置として、セルよりも詳細な位置が特定される。例えば、上記位置特定情報が、上記GPS情報又は上記受信電力情報を含む場合に、無線通信装置100の位置として、セルよりも詳細な位置が特定される。
無線通信装置100の位置として、無線通信装置100が位置するセルが特定されてもよい。例えば、上記位置特定情報が、上記セルIDのみを含む場合に、無線通信装置100の位置として、セルが特定されてもよい。
例えば、装置特定部231は、上記共用帯域を使用して上記他の無線通信(例えば、無線LAN通信)を行う他の無線通信装置の位置に基づいて、基地局300の周辺に位置する上記他の無線通信装置を特定する。
例えば、上記他の無線通信装置の位置を特定するための情報が、予め収集され、(例えば、記憶部220に)記憶される。そして、処理部230(例えば、装置特定部231又は別の構成要素)は、上記他の無線通信装置の位置を特定する。なお、上記他の無線通信は、例えば無線LAN通信であり、上記他の無線通信装置は、例えば無線LANのアクセスポイントである。
基地局300の周辺に位置する上記他の無線通信装置の特定の手法は、例えば、基地局300の周辺に位置する無線通信装置100の特定の手法の上述した例のうちのいずれかと同一である。よって、ここでは重複する説明を省略する。
(a)無線通信装置100についての通信関連情報の取得
情報取得部233は、無線通信システムの無線通信と他の無線通信との間で共用される周波数帯域(即ち、共用帯域)を使用して無線通信装置100により行われる上記他の無線通信に関する情報であって、無線通信装置100により提供される当該情報(即ち、通信関連情報)を取得する。
上述したように、例えば、上記無線通信システムは、セルラーシステムであり、上記他の無線通信は、無線LAN通信である。即ち、情報取得部233は、共用帯域(セルラー通信と無線LAN通信との間で共用される帯域)を使用して無線通信装置100により行われる無線LAN通信に関する情報(即ち、通信関連情報)を取得する。
上述したように、例えば、上記通信関連情報は、無線通信装置100(又は無線通信システムの基地局)により、情報処理装置200に提供される。そして、当該通信関連情報は、記憶部220に記憶される。その後のいずれかのタイミングで、情報取得部233は、記憶部220から上記通信関連情報を取得する。
例えば、情報取得部233は、上記共用帯域を使用して上記他の無線通信装置により行われる上記他の無線通信(例えば、無線LAN通信)に関する情報を取得する。
上記他の無線通信装置により行われる上記他の無線通信(例えば、無線LAN通信)に関する上記情報は、例えば、無線通信装置100についての上記通信関連情報と同一の情報(例えば、使用帯域情報、送信電力情報、及び/又は別の通信パラメータなど)である。よって、ここでは重複する説明を省略する。
例えば、上記他の無線通信装置により行われる上記他の無線通信に関する上記情報は、上記他の無線通信装置により提供され、(例えば情報処理装置200により)収集される。例えば、当該情報は、記憶部220に記憶される。その後のいずれかのタイミングで、情報取得部233は、記憶部220から、上記情報を取得する。
(a)追加帯域などの決定
制御部235は、上記通信関連情報に基づいて、上記共用帯域のうちの、上記無線通信システム用の周波数帯域に加えて上記無線通信システムの上記無線通信に使用可能な追加帯域を決定する。
上述したように、上記通信関連情報は、上記共用帯域を使用して無線通信装置100により行われる上記他の無線通信(例えば、無線LAN通信)に関する情報である。例えば、ここでの無線通信装置100は、基地局300の周辺に位置する装置である。また、例えば、上記追加帯域は、基地局300の無線通信に使用可能な帯域である。即ち、制御部235は、基地局300の周辺に位置する無線通信装置100についての上記通信関連情報に基づいて、上記追加帯域のうちの、基地局300の無線通信に使用可能な追加帯域を決定する。
例えば、制御部235は、上記通信関連情報に基づいて、上記追加帯域と、当該追加帯域についての使用可能な送信電力とを決定する。
例えば、制御部235は、上記通信関連情報、並びに、基地局300及び無線通信装置100の位置に基づいて、上記追加帯域を決定する。また、例えば、制御部235は、上記通信関連情報、並びに、基地局300及び無線通信装置100の位置に基づいて、上記追加帯域についての使用可能な送信電力も決定する。
--具体的な手法の一例
制御部235は、上記通信関連情報、並びに、基地局300及び無線通信装置100の上記位置に基づいて、基地局300の無線通信から無線通信装置100の上記他の無線通信への干渉を推定し、推定される当該干渉に基づいて、上記追加帯域(及び当該追加帯域についての使用可能な送信電力)を決定する。また、例えば、制御部235は、上記追加帯域についての使用可能な送信電力も決定する。
基地局300の無線通信から無線通信装置100(及び他の無線通信装置)の上記他の無線通信への干渉のみが考慮される例を説明したが、本開示は係る例に限定されない。例えば、上記干渉の代わりに、又は上記干渉とともに、無線通信装置100(及び他の無線通信装置)の上記他の無線通信(例えば、無線LAN通信)から基地局300の無線通信への干渉が考慮されて、上記追加帯域が決定されてもよい。
例えば、制御部235は、基地局300により追加帯域を要求されると、上記追加帯域を決定する。具体的には、例えば、制御部235は、基地局300からの追加帯域要求メッセージが受信されると、上記追加帯域を決定する。これにより、例えば、基地局300のニーズに応じて、基地局300が追加帯域を使用することが可能になる。
例えば、制御部235は、上記追加帯域を示す情報(以下、「追加帯域情報」と呼ぶ)を基地局300に提供する。例えば、上記追加帯域情報は、決定される上記送信電力(即ち、上記追加帯域についての使用可能な送信電力)をさらに示す。
なお、制御部235は、上記共用帯域のうちの上記追加帯域に加えて、上記無線通信システム用の上記周波数帯域(例えば、セルラー帯域)のうちの、基地局300の無線通信に使用可能な帯域をさらに決定してもよい。そして、制御部235は、当該帯域を示す情報を基地局300に提供してもよい。
次に、図6~図11を参照して、本実施形態に係る基地局300の構成の一例を説明する。図6は、本実施形態に係る基地局300の構成の一例を示すブロック図である。基地局300は、アンテナ部310、無線通信部320、ネットワーク通信部330、記憶部340及び処理部350を含む。
アンテナ部310は、無線通信部320により出力される信号を電波として空間に放射する。また、アンテナ部310は、空間の電波を信号に変換し、当該信号を無線通信部320へ出力する。
無線通信部320は、無線通信システムの無線通信における信号の送受信を行う。例えば、当該無線通信システムは、セルラーシステムであり、無線通信部320は、セルラー通信における信号の送受信を行う。具体的には、例えば、無線通信部320は、無線通信装置へのダウンリンク信号を送信し、無線通信装置からのアップリンク信号を受信する。
ネットワーク通信部330は、他のノードと通信する。例えば、ネットワーク通信部330は、情報処理装置200と通信する。また、例えば、ネットワーク通信部330は、他の基地局、及び/又はコアネットワークノード(例えば、S-GW、P-GW、及び/又はMME)と通信してもよい。
記憶部340は、基地局300の動作のためのプログラム及びデータを一時的に又は恒久的に記憶する。
処理部350は、基地局300の様々な機能を提供する。処理部350は、要求部351、情報取得部353及び制御部355を含む。なお、処理部350は、これらの構成要素以外の他の構成要素をさらに含み得る。即ち、処理部350は、これらの構成要素の動作以外の動作も行い得る。
要求部351は、上記共用帯域のうちの、上記無線通信システム用の周波数帯域に加えて上記無線通信システムの上記無線通信に使用可能な追加帯域を、情報処理装置200に要求する。
情報取得部353は、上記追加帯域を示す情報(即ち、追加帯域情報)を取得する。
制御部355は、上記追加帯域を使用して基地局300が上記無線通信システムの上記無線通信を行うように、基地局300を制御する。
例えば、制御部355は、上記追加帯域の使用のための設定を行う。具体的には、例えば、制御部355は、上記追加帯域情報に示される追加帯域を、基地局300が使用するキャリア(例えば、コンポーネントキャリア(CC))として設定する。また、例えば、制御部355は、上記追加帯域情報に示される送信電力を、基地局300が上記追加帯域についての使用可能な送信電力(例えば、最大送信電力)として設定する。また、例えば、制御部355は、上記追加帯域の使用のために他の通信パラメータも設定する。
制御部355は、上記無線通信システム用の上記周波数帯域(例えば、セルラー帯域)についての基地局300の送信電力に応じた送信電力で上記追加帯域を使用して、上記無線通信システムの上記無線通信(例えば、セルラー通信)を行うように、基地局300を制御する。
次に、図12を参照して、本実施形態に係る無線通信装置400の構成の一例を説明する。図12は、本実施形態に係る無線通信装置400の構成の一例を示すブロック図である。無線通信装置400は、アンテナ部410、第1無線通信部420、アンテナ部430、第2無線通信部440、記憶部450及び処理部460を含む。
アンテナ部410は、第1無線通信部420により出力される信号を電波として空間に放射する。また、アンテナ部410は、空間の電波を信号に変換し、当該信号を第1無線通信部420へ出力する。
第1無線通信部420は、無線通信システムの無線通信における信号の送受信を行う。例えば、当該無線通信システムは、セルラーシステムであり、第1無線通信部420は、セルラー通信における信号の送受信を行う。具体的には、例えば、第1無線通信部420は、基地局300からのダウンリンク信号を受信し、基地局300へのアップリンク信号を送信する。
アンテナ部430は、第2無線通信部440により出力される信号を電波として空間に放射する。また、アンテナ部430は、空間の電波を信号に変換し、当該信号を第2無線通信部440へ出力する。
第2無線通信部440は、無線通信システムの無線通信とは異なる他の無線通信における信号の送受信を行う。例えば、上記他の無線通信は、無線LAN規格に従った無線通信であり、第2無線通信部440は、無線LAN通信における信号の送受信を行う。
記憶部450は、無線通信装置400の動作のためのプログラム及びデータを一時的に又は恒久的に記憶する。
処理部460は、無線通信装置400の様々な機能を提供する。処理部460は、第1制御部461及び第2制御部463を含む。なお、処理部460は、これらの構成要素以外の他の構成要素をさらに含み得る。即ち、処理部460は、これらの構成要素の動作以外の動作も行い得る。
第1制御部461は、上記共用帯域のうちの上記追加帯域、及び、上記無線通信システム用の周波数帯域(例えば、セルラー帯域)を使用して、無線通信装置400が上記無線通信システムの上記無線通信(例えば、セルラー通信)を行うように、無線通信装置400を制御する。
第2制御部463は、無線通信装置400が、上記追加帯域を使用して上記無線通信システムの上記無線通信(例えば、セルラー通信)を行う間に、上記追加帯域を使用して上記他の無線通信(例えば、無線LAN通信)を行わないように、無線通信装置400を制御する。
続いて、図13~図15を参照して、本開示の実施形態に係る処理の例を説明する。
図13は、本実施形態に係る情報提供処理の概略的な流れの一例を示すシーケンス図である。
図14は、本実施形態に係る帯域追加処理の概略的な流れの一例を示すシーケンス図である。
図15は、本実施形態に係る追加帯域決定処理の概略的な流れの一例を示すフローチャートである。
本開示に係る技術は、様々な製品へ応用可能である。例えば、情報処理装置200は、タワーサーバ、ラックサーバ、又はブレードサーバなどのいずれかの種類のサーバとして実現されてもよい。また、情報処理装置200の少なくとも一部の構成要素は、サーバに搭載されるモジュール(例えば、1つのダイで構成される集積回路モジュール、又はブレードサーバのスロットに挿入されるカード若しくはブレード)として実現されてもよい。
図16は、本開示に係る技術が適用され得るサーバ700の概略的な構成の一例を示すブロック図である。サーバ700は、プロセッサ701、メモリ702、ストレージ703、ネットワークインタフェース704及びバス706を備える。
(第1の応用例)
図17は、本開示に係る技術が適用され得るeNBの概略的な構成の第1の例を示すブロック図である。eNB800は、1つ以上のアンテナ810、及び基地局装置820を有する。各アンテナ810及び基地局装置820は、RFケーブルを介して互いに接続され得る。
図18は、本開示に係る技術が適用され得るeNBの概略的な構成の第2の例を示すブロック図である。eNB830は、1つ以上のアンテナ840、基地局装置850、及びRRH860を有する。各アンテナ840及びRRH860は、RFケーブルを介して互いに接続され得る。また、基地局装置850及びRRH860は、光ファイバケーブルなどの高速回線で互いに接続され得る。
(第1の応用例)
図19は、本開示に係る技術が適用され得るスマートフォン900の概略的な構成の一例を示すブロック図である。スマートフォン900は、プロセッサ901、メモリ902、ストレージ903、外部接続インタフェース904、カメラ905、センサ906、マイクロフォン907、入力デバイス908、表示デバイス909、スピーカ910、セルラー通信インタフェース911、アンテナスイッチ912、アンテナ913、無線LAN通信インタフェース914、アンテナスイッチ915、アンテナ916、バス920、バッテリー921及び補助コントローラ922を備える。
図20は、本開示に係る技術が適用され得るカーナビゲーション装置930の概略的な構成の一例を示すブロック図である。カーナビゲーション装置930は、プロセッサ931、メモリ932、GPS(Global Positioning System)モジュール933、センサ934、データインタフェース935、コンテンツプレーヤ936、記憶媒体インタフェース937、入力デバイス938、表示デバイス939、スピーカ940、セルラー通信インタフェース941、アンテナスイッチ942、アンテナ943、無線LAN通信インタフェース944、アンテナスイッチ945、アンテナ946及びバッテリー950を備える。
ここまで、図1~図20を参照して、本開示の実施形態に係る各装置及び各処理を説明した。
(1)
無線通信システムの無線通信と他の無線通信との間で共用される周波数帯域を使用して無線通信装置により行われる前記他の無線通信に関する情報であって、前記無線通信装置により提供される当該情報を取得する取得部と、
前記他の無線通信に関する前記情報に基づいて、共用される前記周波数帯域のうちの、前記無線通信システム用の周波数帯域に加えて前記無線通信システムの前記無線通信に使用可能な追加帯域を決定する制御部と、
を備える装置。
(2)
前記制御部は、前記他の無線通信に関する前記情報に基づいて、前記追加帯域と、当該追加帯域についての使用可能な送信電力とを決定する、前記(1)に記載の装置。
(3)
前記他の無線通信に関する前記情報は、共用される前記周波数帯域のうちの前記無線通信装置が使用している帯域を示す情報を含む、前記(1)又は(2)に記載の装置。
(4)
前記他の無線通信に関する前記情報は、共用される前記周波数帯域についての前記無線通信装置の送信電力を示す情報を含む、前記(1)~(3)のいずれか1項に記載の装置。
(5)
前記他の無線通信に関する前記情報は、共用される前記周波数帯域を前記無線通信装置が使用しているか否かを示す情報を含む、前記(1)~(4)のいずれか1項に記載の装置。
(6)
前記他の無線通信に関する前記情報は、前記無線通信システムの基地局を経由する情報である、前記(1)~(5)のいずれか1項に記載の装置。
(7)
前記無線通信装置は、前記無線通信システムの基地局の周辺に位置する装置であり、
前記追加帯域は、前記基地局の無線通信に使用可能な帯域である、
前記(1)~(6)のいずれか1項に記載の装置。
(8)
前記無線通信装置の位置に基づいて、前記基地局の周辺に位置する前記無線通信装置を特定する特定部、をさらに備える、前記(7)に記載の装置。
(9)
前記制御部は、前記他の無線通信に関する前記情報、並びに、前記基地局及び前記無線通信装置の位置に基づいて、前記追加帯域を決定する、前記(7)又は(8)に記載の装置。
(10)
前記制御部は、前記他の無線通信に関する前記情報に基づいて、前記基地局の無線通信から前記無線通信装置の前記他の無線通信への干渉を推定し、推定される当該干渉に基づいて、前記追加帯域を決定する、前記(7)又は(8)に記載の装置。
(11)
前記無線通信システムは、セルラーシステムであり、
前記他の無線通信は、無線LAN(Local Area Network)規格に従った無線通信である、
前記(1)~(10)のいずれか1項に記載の装置。
(12)
無線通信システムの無線通信と他の無線通信との間で共用される周波数帯域を使用して無線通信装置により行われる前記他の無線通信に関する情報を取得する取得部と、
共用される前記周波数帯域のうちの、前記無線通信システム用の周波数帯域に加えて前記無線通信システムの前記無線通信に使用可能な追加帯域を決定する他の装置が、前記他の無線通信に関する前記情報を取得できるように、前記他の無線通信に関する前記情報を提供する提供部と、
を備える装置。
(13)
前記取得部は、前記無線通信装置の位置を特定するための位置特定情報をさらに取得し、
前記提供部は、前記他の装置が前記無線通信装置の前記位置を特定できるように、前記位置特定情報を提供する、
前記(12)に記載の装置。
(14)
前記位置特定情報は、前記無線通信装置のGPS(Global Positioning System)機能により生成される情報を含む、前記(13)に記載の装置。
(15)
前記位置特定情報は、前記無線通信装置が位置する前記無線通信システムのセルの識別情報を含む、前記(13)又は(14)に記載の装置。
(16)
前記位置特定情報は、前記無線通信システムの複数の基地局により送信される信号の前記無線通信装置での受信電力に関する情報を含む、前記(13)~(15)のいずれか1項に記載の装置。
(17)
無線通信システムの無線通信と他の無線通信との間で共用される周波数帯域のうちの、前記無線通信システム用の周波数帯域に加えて前記無線通信システムの前記無線通信に使用可能な追加帯域を示す情報を取得する取得部と、
前記追加帯域を使用して前記無線通信システムの基地局が前記無線通信システムの前記無線通信を行うように、前記基地局を制御する制御部と、
を備え、
前記追加帯域は、共用される前記周波数帯域を使用して無線通信装置により行われる前記他の無線通信に関する情報であって、前記無線通信装置により提供される当該情報に基づいて決定される帯域である、
装置。
(18)
前記制御部は、前記無線通信システム用の前記周波数帯域についての前記基地局の送信電力に応じた送信電力で前記追加帯域を使用して、前記無線通信システムの前記無線通信を行うように、前記基地局を制御する、前記(17)に記載の装置。
(19)
前記装置は、前記基地局、前記基地局のための基地局装置、又は当該基地局装置のためのモジュールである、前記(17)又は(18)に記載の装置。
(20)
無線通信装置が、無線通信システムの無線通信と他の無線通信との間で共用される周波数帯域のうちの、前記無線通信システムの前記無線通信に使用可能な追加帯域を使用して、前記無線通信システムの前記無線通信を行う間に、前記追加帯域を使用して前記他の無線通信を行わないように、前記無線通信装置を制御する制御部、
を備える装置。
10 無線通信装置
30 セル
50 セルラー帯域
60 共用帯域
63 追加帯域
100 情報処理装置
161 情報取得部
163 情報提供部
200 情報処理装置
231 装置特定部
233 情報取得部
235 制御部
300 基地局
353 情報取得部
355 制御部
400 情報処理装置
461 第1制御部
463 第2制御部
Claims (20)
- 無線通信システムの無線通信と他の無線通信との間で共用される周波数帯域を使用して無線通信装置により行われる前記他の無線通信に関する情報であって、前記無線通信装置により提供される当該情報を取得する取得部と、
前記他の無線通信に関する前記情報に基づいて、共用される前記周波数帯域のうちの、前記無線通信システム用の周波数帯域に加えて前記無線通信システムの前記無線通信に使用可能な追加帯域を決定する制御部と、
を備える装置。 - 前記制御部は、前記他の無線通信に関する前記情報に基づいて、前記追加帯域と、当該追加帯域についての使用可能な送信電力とを決定する、請求項1に記載の装置。
- 前記他の無線通信に関する前記情報は、共用される前記周波数帯域のうちの前記無線通信装置が使用している帯域を示す情報を含む、請求項1に記載の装置。
- 前記他の無線通信に関する前記情報は、共用される前記周波数帯域についての前記無線通信装置の送信電力を示す情報を含む、請求項1に記載の装置。
- 前記他の無線通信に関する前記情報は、共用される前記周波数帯域を前記無線通信装置が使用しているか否かを示す情報を含む、請求項1に記載の装置。
- 前記他の無線通信に関する前記情報は、前記無線通信システムの基地局を経由する情報である、請求項1に記載の装置。
- 前記無線通信装置は、前記無線通信システムの基地局の周辺に位置する装置であり、
前記追加帯域は、前記基地局の無線通信に使用可能な帯域である、
請求項1に記載の装置。 - 前記無線通信装置の位置に基づいて、前記基地局の周辺に位置する前記無線通信装置を特定する特定部、をさらに備える、請求項7に記載の装置。
- 前記制御部は、前記他の無線通信に関する前記情報、並びに、前記基地局及び前記無線通信装置の位置に基づいて、前記追加帯域を決定する、請求項7に記載の装置。
- 前記制御部は、前記他の無線通信に関する前記情報に基づいて、前記基地局の無線通信から前記無線通信装置の前記他の無線通信への干渉を推定し、推定される当該干渉に基づいて、前記追加帯域を決定する、請求項7に記載の装置。
- 前記無線通信システムは、セルラーシステムであり、
前記他の無線通信は、無線LAN(Local Area Network)規格に従った無線通信である、
請求項1に記載の装置。 - 無線通信システムの無線通信と他の無線通信との間で共用される周波数帯域を使用して無線通信装置により行われる前記他の無線通信に関する情報を取得する取得部と、
共用される前記周波数帯域のうちの、前記無線通信システム用の周波数帯域に加えて前記無線通信システムの前記無線通信に使用可能な追加帯域を決定する他の装置が、前記他の無線通信に関する前記情報を取得できるように、前記他の無線通信に関する前記情報を提供する提供部と、
を備える装置。 - 前記取得部は、前記無線通信装置の位置を特定するための位置特定情報をさらに取得し、
前記提供部は、前記他の装置が前記無線通信装置の前記位置を特定できるように、前記位置特定情報を提供する、
請求項12に記載の装置。 - 前記位置特定情報は、前記無線通信装置のGPS(Global Positioning System)機能により生成される情報を含む、請求項13に記載の装置。
- 前記位置特定情報は、前記無線通信装置が位置する前記無線通信システムのセルの識別情報を含む、請求項13に記載の装置。
- 前記位置特定情報は、前記無線通信システムの複数の基地局により送信される信号の前記無線通信装置での受信電力に関する情報を含む、請求項13に記載の装置。
- 無線通信システムの無線通信と他の無線通信との間で共用される周波数帯域のうちの、前記無線通信システム用の周波数帯域に加えて前記無線通信システムの前記無線通信に使用可能な追加帯域を示す情報を取得する取得部と、
前記追加帯域を使用して前記無線通信システムの基地局が前記無線通信システムの前記無線通信を行うように、前記基地局を制御する制御部と、
を備え、
前記追加帯域は、共用される前記周波数帯域を使用して無線通信装置により行われる前記他の無線通信に関する情報であって、前記無線通信装置により提供される当該情報に基づいて決定される帯域である、
装置。 - 前記制御部は、前記無線通信システム用の前記周波数帯域についての前記基地局の送信電力に応じた送信電力で、前記追加帯域を使用して、前記無線通信システムの前記無線通信を行うように、前記基地局を制御する、請求項17に記載の装置。
- 前記装置は、前記基地局、前記基地局のための基地局装置、又は当該基地局装置のためのモジュールである、請求項17に記載の装置。
- 無線通信装置が、無線通信システムの無線通信と他の無線通信との間で共用される周波数帯域のうちの、前記無線通信システムの前記無線通信に使用可能な追加帯域を使用して、前記無線通信システムの前記無線通信を行う間に、前記追加帯域を使用して前記他の無線通信を行わないように、前記無線通信装置を制御する制御部、
を備える装置。
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