WO2014136333A1 - 通信制御装置、通信制御方法及び通信装置 - Google Patents
通信制御装置、通信制御方法及び通信装置 Download PDFInfo
- Publication number
- WO2014136333A1 WO2014136333A1 PCT/JP2013/082397 JP2013082397W WO2014136333A1 WO 2014136333 A1 WO2014136333 A1 WO 2014136333A1 JP 2013082397 W JP2013082397 W JP 2013082397W WO 2014136333 A1 WO2014136333 A1 WO 2014136333A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wireless communication
- link direction
- frequency channel
- configuration
- channel
- Prior art date
Links
Images
Classifications
-
- 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
- H04W72/0446—Resources in time domain, e.g. slots or frames
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B15/00—Suppression or limitation of noise or interference
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
Definitions
- the present disclosure relates to a communication control device, a communication control method, and a communication device.
- Non-Patent Document 1 provides information on the coverage of the DTT (Digital Terrestrial Television) system, the location of the DTT receiver, and the allowable interference level in order to appropriately control the transmission power of WSD. It is proposed to deploy a geo-location database (GLDB). Usually, the frequency band usage permission is given for each country (or region), so GLDB will also be deployed for each country (or region).
- DTT Digital Terrestrial Television
- GLDB geo-location database
- Non-Patent Document 3 uses advanced geo-location engine (AGLE) to maximize the system capacity of the secondary system through more advanced calculations using information provided by GLDB.
- AGLE advanced geo-location engine
- a country or a third party For example, a country or a third party.
- the approach of installing AGLE has been decided to be adopted by OfCom (Office of Communications), which is a frequency management entity in the UK, and third-party database providers.
- Non-Patent Document 4 a coexistence technique between devices that secondarily use a frequency band is discussed.
- ECC Electronic Communications Committee
- TECHNICAL AND OPERATIONAL REQUIREMENTS FOR THE POSSIBLE OPERATION OF COGNITIVE RADIO SYSTEMS IN THE‘ WHITE SPACES ’OF THE FREQUENCY BAND 470-790 MHz, 2011, 2011, 2011
- ECC Electronic Communications Committee
- Complementary Report to ECC Report 159 Further definition of technical and operational and operational requirements for the operation of white space devices in the band 470-790 MHz”, ECC REPORT 185, 2012 Naotaka Sato (Sony Corporation), “TV WHITE SPACE AS PART OF THE FUTURE SPECTRUM LANDSCAPE FOR WIRELESS COMMUNICATIONS”, ETSI Workshop on Reconfigurable Radio Systems, December 12 2012, Paris (France) Draft ETSI TS 102 946, Reconfigurable Radio Systems (RRS); System requirements for Operation in UHF TV Band White Spaces
- the influence of the primary system radio communication on the secondary system radio communication that secondarily uses the frequency band for the primary system is not specifically considered. That is, the influence of the transmission power of the primary system transmitter on the secondary system receiver is not specifically considered. Therefore, the transmission power for the primary system can greatly affect the wireless communication of the secondary system. As a result, there is a concern that the throughput in the secondary system is reduced.
- the secondary system for the TV white space for example, in a mobile communication system, the same problem may occur when a small cell partially or entirely overlapped with a macro cell.
- a communication control apparatus that controls radio communication according to a time division duplex (TDD) scheme, the link direction configuration representing a link direction in a subframe unit in a radio frame including a plurality of subframes.
- a communication control device comprising: a selection unit that selects a link direction configuration for wireless communication, and an application unit that applies the selected link direction configuration to the wireless communication Is provided.
- the plurality of candidates include at least one of a downlink-only link direction configuration and an uplink-only link direction configuration.
- a communication control method for controlling radio communication according to a time division duplex (TDD) scheme, and a link representing a link direction in a subframe unit in a radio frame including a plurality of subframes.
- a communication control method comprising: selecting a link direction configuration for the wireless communication among a plurality of candidates for the direction configuration; and applying the selected link direction configuration to the wireless communication.
- the plurality of candidates include at least one of a downlink-only link direction configuration and an uplink-only link direction configuration.
- the recognition unit when the wireless communication is performed in two or more frequency channels, the recognition unit that recognizes the frequency channel in which wireless communication according to the time division duplex (TDD) scheme is performed, For each individual frequency channel included in two or more frequency channels, a radio including a plurality of subframes based on information on the distance in the frequency direction between the interference frequency channel to which the interference signal is transmitted and the individual frequency channel.
- a determination unit that determines one or more candidates that can be selected to be applied to wireless communication in the individual frequency channel among a plurality of candidates of a link direction configuration representing a link direction in units of subframes in a frame; Are provided.
- the plurality of candidates include at least one of a downlink-only link direction configuration and an uplink-only link direction configuration.
- a communication apparatus that controls radio communication according to a time division duplex (TDD) scheme, the link direction representing a link direction in a subframe unit in a radio frame including a plurality of subframes.
- a recognition unit that recognizes a link direction configuration that is applied to the wireless communication among a plurality of configuration candidates, and a communication control unit that controls the wireless communication according to the recognized link direction configuration.
- a communication device is provided.
- the plurality of candidates includes at least one of a downlink-only link direction configuration and an uplink-only link direction configuration.
- FIG. 2 is an explanatory diagram illustrating an example of a schematic configuration of a communication system according to an embodiment of the present disclosure.
- FIG. It is a block diagram which shows an example of a structure of AGLE which concerns on one Embodiment. It is explanatory drawing for demonstrating the example of the channel which can be used for a secondary system. It is explanatory drawing for demonstrating the example of the available channel relevant information to which the information of the selectable candidate was added. It is a block diagram which shows an example of a structure of master WBS which concerns on one Embodiment. It is a block diagram which shows an example of a structure of the slave WSD which concerns on one Embodiment.
- Frequency division duplex (FDD) or time division duplex (TDD) may be employed as a duplex scheme for the TV white space.
- FDD Frequency division duplex
- TDD time division duplex
- TDD Time Division Multiple Access
- TD-LTE Time Division Long Term Evolution
- a radio frame includes a plurality of subframes, and a link direction (for example, downlink, uplink) in units of subframes is set. More specifically, a plurality of candidates for a link direction configuration (that is, a TDD configuration) representing a link direction in units of subframes in a radio frame are prepared in advance. Then, any one of the plurality of candidates is set.
- a link direction configuration that is, a TDD configuration
- FIG. 1 is an explanatory diagram for explaining a specific example of the TDD configuration.
- TDD configurations Configuration 0-6 defined in 3GPP (3rd Generation Partnership Project) technical standards (TS 36.211 Table 4.2-2: Uplink-downlink Configuration).
- each subframe is one of a downlink frame that is a downlink subframe, an uplink frame that is an uplink subframe, and a special subframe.
- the special subframe is provided at the time of switching between the downlink subframe and the uplink subframe in order to consider the propagation delay from the base station to the terminal device.
- the ratio between the number of subframes for uplink and the number of subframes for downlink differs depending on each TDD configuration. For example, if a special subframe is considered as a subframe for the downlink, the TDD configuration that maximizes the proportion of the downlink subframes (ie, the downlink subframe and the special subframe) in the total subframe is , Configuration 5. In this case, the ratio of subframes for the downlink is 90%. On the other hand, the TDD configuration that maximizes the ratio of uplink subframes to all subframes is Configuration 0. In this case, the ratio of uplink subframes (ie, uplink subframes) is 60%.
- the transmission power of a transmitter that secondarily uses a frequency band is limited so as not to cause harmful interference to the receiver of the primary system.
- the influence of the transmission power of the primary system transmitter on the secondary system receiver that secondarily uses the frequency band is not specifically considered. Therefore, the transmission power for the primary system can have a significant effect on the secondary system.
- FIG. 2, FIG. 3 and FIG. 4 an example of the influence of transmission power on the primary system on the secondary system will be described.
- FIG. 2 is an explanatory diagram for explaining an example of the influence of the transmission power of the primary system on the uplink of the secondary system.
- a transmitter 10 of a broadcasting system that is a primary system and a master WSD 20 and a slave WSD 30 of a secondary system are shown.
- the transmitter 10 of the broadcasting system is usually installed at a very high position so that the radio wave can reach far.
- the master WSD 20 that plays a role as an access point or a base station is also installed at a position higher than the slave WSD 30. In such a case, the propagation path from the transmitter 10 to the master WSD 20 is highly likely to be a line-of-sight propagation path.
- the transmission power of the transmitter 10 can be very large. Therefore, the transmission power of the transmitter 10 can greatly affect the master WSD 20. That is, the transmission signal of the transmitter 10 can greatly interfere with the uplink signal received by the master WSD 20. Thus, the transmission power for the primary system can greatly affect the secondary system uplink.
- FIG. 3 is an explanatory diagram for explaining an example of the influence of the transmission power of the primary system on the downlink of the secondary system.
- a transmitter 10 of a broadcasting system which is a primary system, and a master WSD 20 and a slave WSD 30 of a secondary system are illustrated.
- the transmitter 10 of the broadcasting system is usually installed at a very high position, and the master WSD 20 is also installed at a position higher than the slave WSD 30. In such a case, there is a high possibility that the propagation path from the transmitter 10 to the slave WSD 30 is not a line-of-sight propagation path.
- the influence of the transmission power of the transmitter 10 on the slave WSD 30 is smaller than the influence of the transmission power of the transmitter 10 on the master WSD 20.
- the provision that the transmission power for the primary system has on the downlink of the secondary system can be smaller than the effect that the transmission power for the primary system has on the uplink of the secondary system.
- FIG. 4 is an explanatory diagram for explaining an example of a comparison result between WSD uplink SINR (Signal-to-Interference and Noise power Ratio) and downlink SINR.
- WSD uplink SINR Signal-to-Interference and Noise power Ratio
- FIG. 4 the uplink characteristics of the case as shown in FIG. 2 and the downlink characteristics of the case as shown in FIG. 3 are shown. More specifically, a cumulative distribution function (Cumulative Distribution Function: CDF) of SINR for each of the uplink and the downlink is shown.
- CDF Cumulative Distribution Function
- the values defined in ECC REPORT 186 Annex 1 are followed for the operation parameters of the primary system and the secondary system.
- the uplink SINR is lower than the downlink SINR.
- the influence from the primary system to the secondary system is It appears strongly in the master WSD 20 at a higher position. That is, the influence from the primary system to the secondary system appears strongly in the uplink.
- FIG. 5 is an explanatory diagram for explaining an example of interference from the frequency channel of the primary system to each frequency channel used in the secondary system.
- a primary channel Primary Channel
- secondary channels Secondary Channel
- Yes As shown in FIG. 5, due to out-of-band radiation from the primary channel, more interference occurs in the secondary channel (for example, secondary channel # 1) closer to the primary channel. That is, in the secondary channel (for example, secondary channel # 1) closer to the primary channel, the uplink SINR is particularly lower than the downlink SINR. As a result, the throughput in the secondary system can be reduced.
- the present embodiment makes it possible to perform more desirable wireless communication via the receiver even when there are a transmitter and a receiver that use the same or close frequency bands. More specifically, for example, it is possible to perform more desirable wireless communication via WSD.
- New method according to this embodiment > -Definition of new TDD configurations
- three TDD configurations are defined in 3GPP.
- a new TDD configuration is defined. Specifically, a TDD configuration dedicated to downlink and / or a TDD configuration dedicated to uplink is newly defined.
- FIGS. 6 and 7. an example of a new TDD configuration will be described with reference to FIGS. 6 and 7.
- FIG. 6 is an explanatory diagram for explaining a TDD configuration dedicated to the downlink.
- a configuration dedicated to downlink is shown as Configuration 7.
- all subframes are downlink subframes (ie, downlink subframes).
- FIG. 7 is an explanatory diagram for explaining an uplink dedicated TDD configuration.
- a configuration dedicated to the uplink of Case 1 and Case 2 is shown as Configuration 8.
- Case 1 is a case where the last subframe of the immediately preceding radio frame is an uplink subframe
- Case 2 is a case where the last subframe of the immediately preceding radio frame is a downlink subframe.
- the remaining subframes other than the first subframe ie, subframes # 1 to # 9
- the first subframe ie, subframe # 0
- uplink transmission is not performed in part or all of the first subframe. This is because, like the special subframe, the downlink signal can be received in the first subframe due to propagation delay.
- a downlink-dedicated subframe and an uplink-dedicated subframe are prepared.
- the primary channel To the secondary channel can be further reduced. More specifically, as described with reference to FIG. 5, when the secondary channel is close to the primary channel in the frequency direction, the uplink SINR can be lowered. Therefore, if a downlink dedicated TDD configuration is prepared, a downlink dedicated TDD configuration can be set as a TDD configuration for wireless communication in such a secondary channel. As a result, it is possible to further suppress interference from the primary system even in the secondary channel near the primary channel. That is, it is possible to further suppress the decrease in SINR even for an available channel near the primary channel. In other words, more desirable wireless communication can be performed via a WSD (slave WSD) receiver.
- WSD slave WSD
- the uplink throughput It becomes possible to improve. More specifically, as described with reference to FIG. 5, when the secondary channel is close to the primary channel in the frequency direction, the uplink SINR can be lowered. In other words, if the secondary channel is away from the primary channel in the frequency direction, the uplink SINR does not decrease much. Therefore, if an uplink dedicated TDD configuration is prepared, an uplink dedicated TDD configuration can be set as a TDD configuration for wireless communication in a secondary channel away from the primary channel.
- both a TDD configuration dedicated to the downlink and a TDD configuration dedicated to the uplink can be prepared.
- wireless communication may be performed temporarily and / or in some frequency channels in the same manner as when FDD is employed as a duplex system. It becomes possible to do. Therefore, for example, a TDD configuration dedicated to downlink is set for radio communication in a secondary channel closer to the primary channel, and a TDD configuration dedicated to uplink is set for radio communication in a secondary channel farther from the primary channel. Can also be set. As a result, it is possible to improve uplink throughput while suppressing interference from the primary channel.
- FIG. 8 is an explanatory diagram illustrating an example of a schematic configuration of the communication system 1 according to the present embodiment.
- the communication system 1 includes a GLDB (Geo-Location Database) 50, an AGLE (Advanced Geo-Location Engine) 100, a master WSD (White Space Device) 200, and a slave WSD.
- GLDB Garnier-Location Database
- AGLE Advanced Geo-Location Engine
- master WSD White Space Device
- the GLDB 50 is a regulatory database that manages data on frequency channels managed by the country. For example, the GLDB 50 provides and monitors information about primary systems and protection rules. As an example, the GLDB 50 provides information (hereinafter referred to as “available channel related information”) regarding frequency channels (hereinafter referred to as “available channels”) that can be used by the secondary system.
- available channel related information information regarding frequency channels (hereinafter referred to as “available channels”) that can be used by the secondary system.
- AGLE 100 is a secondary system management node operated by a frequency management entity or a third party in the country.
- the AGLE 100 may modify the available channel related information provided by the GLDB 50 by using a more advanced protection algorithm, and may add new information to the available channel related information.
- one AGLE 100 exists for the GLDB 50, but a plurality of AGLEs 100 may exist for the GLDB 50.
- Master WSD 200 is a device that operates a secondary system in a country region.
- the frequency channel used by the master WSD 200 for wireless communication, the transmission power in the wireless communication, and the like can be determined by the GLDB 50 and / or the AGLE 100.
- the slave WSD 300 performs wireless communication with the master WSD 200.
- the AGLE 100 and the master WSD 200 are communication control devices that control wireless communication according to a time division duplex (TDD) method.
- the wireless communication is wireless communication of a secondary system that secondarily uses a frequency channel for the primary system.
- AGLE 100 controls the wireless communication of the secondary system by each master WSD 200.
- the master WSD 200 controls the wireless communication of the secondary system by its own device.
- FIG. 9 is a block diagram illustrating an example of the configuration of the AGLE 100 according to the present embodiment.
- the AGLE 100 includes a network communication unit 110, a storage unit 120, and a control unit 130.
- Network communication unit 110 The network communication unit 110 communicates with other communication nodes. For example, the network communication unit 110 communicates with the GLDB 50 and the master WSD 200.
- the storage unit 120 stores a program and data for the operation of the AGLE 100.
- the storage unit 120 stores information on available channels for the secondary system (hereinafter referred to as “available channel related information”).
- available channel related information includes available time for each available channel, center frequency, bandwidth, maximum transmission power, transmission spectrum mask related information, link direction restrictions, and the like.
- the storage unit 120 stores various control information provided to the GLDB 50 and the master WSD 200 and various control information provided from the GLDB 50 and the master WSD 200 in addition to the available channel related information.
- the control unit 130 provides various functions of the AGLE 100.
- the control unit 130 includes an information acquisition unit 131, a channel recognition unit 132, a selectable candidate determination unit 133, a channel allocation unit 135, a configuration selection unit 137, and a configuration application unit 139.
- the information acquisition unit 131 acquires information on an available channel for the secondary system (that is, available channel related information).
- the available channel related information includes available time, center frequency, bandwidth, maximum transmission power, transmission spectrum mask related information, etc. for each available channel.
- the available channel information may be information provided by the GLDB 50, or information corrected by the AGLE 100 (the control unit 130) from the information provided by the GLDB 50.
- the information acquisition unit 131 acquires various types of information provided from the GLDB 50 and the master WSD 200 via the network communication unit 110 and stores the information in the storage unit 120.
- the information acquisition unit 131 acquires various control information provided to the GLDB 50 and the master WSD 200 from the storage unit 120, and provides the various information to the GLDB 50 and the master WSD 200 via the network communication unit 110.
- the channel recognition unit 132 recognizes a frequency channel in which wireless communication controlled by the AGLE 100 (hereinafter referred to as “target wireless communication”) is performed.
- the channel recognizing unit 132 recognizes an available channel for the secondary system from the acquired available channel information.
- the channel recognizing unit 132 recognizes an available channel for the secondary system from the acquired available channel information.
- FIG. 10 is an explanatory diagram for explaining an example of an available channel for the secondary system.
- a primary channel that is, a frequency channel used for radio communication of the primary system
- three usable channels # 1 to # 3 that is, a frequency channel that can be used by the secondary system
- the available channel # 1 is the channel closest to the primary channel among the available channels
- the available channel # 3 is the channel farthest from the primary channel among the available channels.
- the channel recognition unit 132 recognizes three available channels.
- selectable candidate determination unit 133 For example, target wireless communication is performed in two or more frequency channels.
- the selectable candidate determination unit 133 is applied to wireless communication in the individual frequency channels among a plurality of candidates for the TDD configuration for each individual frequency channel included in the two or more frequency channels.
- One or more candidates that can be selected (hereinafter referred to as “selectable candidates”) are determined.
- the selectable candidate determining unit 133 performs the above 1 based on information on the distance in the frequency direction between the interference frequency channel to which the interference signal is transmitted and the individual frequency channels (hereinafter referred to as “distance related information”). Determine one or more selectable candidates.
- the interference frequency channel is a frequency channel used in another wireless communication system different from the secondary system.
- the interference frequency channel is a frequency channel (that is, a primary channel) used in a primary system (or another primary system) corresponding to the secondary system.
- secondary system wireless communication ie, target wireless communication
- the selectable candidate determining unit 133 determines one or more selectable candidates (TDD configuration) for each available channel included in the two or more available channels. Further, the selectable candidate determination unit 133 determines one or more selectable candidates based on information on the distance in the frequency direction between the primary channel and each available channel (that is, distance related information). That is, for each available channel, a constraint on the link direction (TDD configuration) is determined based on the distance between the available channel and the primary channel.
- the plurality of TDD configuration candidates include a downlink-only TDD configuration and / or an uplink-only TDD configuration. That is, the plurality of candidates for the TDD configuration include Configuration 7 and / or Configuration 8 as shown in FIGS. 6 and 7. For example, the plurality of candidates include configurations 0 to 6 as shown in FIG.
- the one or more selectable candidates have a distance D between the interference frequency channel and the individual frequency channel. If it is less than 1, it is a TDD configuration dedicated to the downlink. That is, the selectable candidate determining unit 133 determines a downlink dedicated TDD configuration as a selectable candidate when the distance between the interference frequency channel and each individual frequency channel is smaller than the first distance.
- the selectable candidate determining unit 133 when the distance between the primary channel and the individual available channels is less than the distance D 1, to determine the TDD configuration of downlink dedicated as a selectable candidate.
- the selectable candidate for available channel 1 is a TDD configuration dedicated to downlink.
- a TDD configuration of only a downlink subframe (a TDD configuration without an uplink subframe) is selected and applied.
- uplink wireless communication is not performed on the available channel, and only downlink wireless communication is performed. Therefore, interference in the available channel can be suppressed. That is, a decrease in SINR in the available channel can be suppressed.
- the one or more selectable candidate when the distance between the interference frequency channels and said individual frequency channels is greater than the distance D 2, the uplink dedicated TDD Includes configuration.
- the selectable candidate determining unit 133 when the distance between the primary channel and the individual available channels is greater than the distance D 2, the uplink dedicated TDD configuration is determined as one of the selectable candidates.
- the selectable candidates for available channel 3 include an uplink-only TDD configuration.
- the one or more selectable candidates include the number of uplink subframes when the distance between the interference frequency channel and the individual frequency channel is larger in the frequency direction. Contains a larger TDD configuration.
- the selectable candidate determination unit 133 determines, as a selectable candidate, a TDD configuration having a larger number of uplink subframes when the distance in the frequency direction between the primary channel and each available channel is larger.
- the selectable candidates for available channel 3 include Configuration 8 (ie, uplink-only TDD configuration).
- the selectable candidate for the available channel 1 and the selectable candidate for the available channel 2 do not include Configuration 8.
- selectable candidates for the available channel 2 include Configurations 0 to 6.
- the selectable candidates for the available channel 1 do not include Configurations 0 to 6 and are only Configuration 7.
- the selectable candidate includes a TDD configuration with a larger number of uplink subframes.
- the available channel is farther from the primary channel (interference frequency channel)
- a TDD configuration having a larger number of uplink subframes can be selected for the available channel.
- the closer the available channel is to the primary channel (interference frequency channel) the more the TDD configuration with a smaller number of uplink subframes can be selected for the available channel. Therefore, interference in the available channel can be suppressed by selecting such a TDD configuration. That is, a decrease in SINR in the available channel can be suppressed.
- the selectable candidate information determined in this way is added to the available channel related information. That is, the link direction restriction is added to the available channel related information.
- the link direction restriction is added to the available channel related information.
- FIG. 11 is an explanatory diagram for explaining an example of usable channel related information to which information on selectable candidates is added.
- the available channel related information is shown in a list format.
- the available channel related information includes available channel availability time, center frequency, bandwidth, maximum transmission power, transmission spectrum mask related information, and link direction constraints.
- the restriction on the link direction is equivalent to the selectable candidate.
- the link direction constraint is only the FDD uplink. That is, the only selectable candidate for the available channel is the uplink dedicated TDD configuration.
- all the link directions are recognized in the available channel whose center frequency is f2. That is, the selectable candidates for the available channel are all TDD configurations.
- the link direction is limited only to the FDD downlink. That is, the only selectable candidate for the available channel is the TDD configuration dedicated to the downlink. In this way, usable channel related information including selectable candidates is generated.
- the one or more selectable candidates are further based on information related to quality of service (QoS) required for the target wireless communication (hereinafter referred to as "QoS related information"). May be determined. That is, the selectable candidate determination unit 133 may determine the one or more selectable candidates based on the distance related information and the QoS related information.
- QoS related information information related to quality of service
- the QoS related information includes throughput, latency, bandwidth, and the like.
- the selectable candidate determination unit 133 may determine Configurations 0 to 6 as selectable candidates for the available channels close to the primary channel.
- the TDD configuration can be selected under necessary and sufficient restrictions for the wireless communication. Therefore, it becomes possible to use the frequency channel more flexibly.
- the distance-related information (that is, information on the distance in the frequency direction between the primary channel and each available channel) is, for example, the center frequency of the primary channel and the center of each available channel. It is the distance in the frequency direction from the frequency.
- the center frequency of the primary channel is included in the control information provided from the GLDB 50, and the center frequency of each available channel is included in the available channel related information.
- selectable candidates for the TDD configuration are determined for each frequency channel. Thereby, it becomes possible to improve the throughput while suppressing the influence of interference.
- the channel assignment unit 135 assigns a frequency channel to the target wireless communication.
- the channel allocation unit 135 allocates one or more available channels for wireless communication in the secondary system.
- the target wireless communication is performed on one or more frequency channels. Then, the one or more frequency channels comprise a distance D 4 more distant frequency channels in the frequency direction from the interference frequency channel interference signal is transmitted.
- wireless communication of the secondary system is performed in one or more available channels.
- the one or more available channels includes an available channel apart distance D 4 or more in the frequency direction from the primary channel. That is, the channel allocation unit 135 for wireless communication of the secondary system, allocates the available channels spaced distance D 4 or more in the frequency direction from the primary channel.
- the channel allocation unit 135 may allocate the same available channel to each master WSD 200 or may allocate different available channels. Good. As an example, the channel allocation unit 135 may allocate an available channel in accordance with the position of each master WSD 200 in consideration of the influence from the primary channel at the position.
- the configuration selection unit 137 selects a TDD configuration for target wireless communication from among a plurality of candidates for the TDD configuration.
- the configuration selection unit 137 selects a TDD configuration for wireless communication (that is, target wireless communication) in the secondary system among a plurality of candidates for TDD configuration.
- the plurality of candidates include at least one of a downlink dedicated TDD configuration and an uplink dedicated TDD configuration.
- the plurality of candidates include a TDD configuration dedicated to downlink. As described above, this makes it possible to further suppress interference from the primary system even if the channel is an available channel near the primary channel. That is, it is possible to further suppress the decrease in SINR even for an available channel near the primary channel.
- the plurality of candidates include an uplink dedicated TDD configuration. As described above, this makes it possible to secure a large number of radio resources for the uplink even when the bandwidth of the secondary channel far from the primary channel is narrow (or the number of secondary channels is small). . Therefore, it is possible to improve uplink throughput.
- the plurality of candidates include both a downlink-specific TDD configuration and an uplink-specific TDD configuration.
- wireless communication may be performed temporarily and / or in some frequency channels in the same manner as when FDD is employed as a duplex system. It becomes possible to do. As a result, it is possible to improve uplink throughput while suppressing interference from the primary channel.
- the uplink dedicated link direction configuration is a TDD configuration in which uplink transmission is not performed in a part or the whole of the first subframe among a plurality of subframes included in a radio frame. Including This point is the same as described as case 2 with reference to FIG. As a result, even if the last subframe of the immediately preceding radio frame is a downlink subframe, it is possible to avoid interference with the downlink signal in the downlink subframe.
- the configuration selection unit 137 is included in the two or more frequency channels when the target wireless communication is performed in two or more frequency channels. For each frequency channel, a TDD configuration for wireless communication in the individual frequency channel is selected from the plurality of candidates.
- the configuration selection unit 137 performs the TDD configuration for each available channel included in the two or more available channels. Select.
- the configuration selection unit 137 selects one or more selectable candidates from the plurality of candidates in the individual frequency channel. Select a TDD configuration for wireless communication.
- the configuration selection unit 137 may select a TDD from one or more selectable candidates determined by the selectable candidate determination unit 133 for each available channel included in the two or more available channels. Select a configuration.
- the two or more frequency channels on which the target wireless communication is performed are interference frequency channels on which interference signals are transmitted.
- the configuration selection unit 137 selects the first TDD configuration in which the number of downlink subframes is the first number as the TDD configuration for wireless communication in the first frequency channel.
- the configuration selection unit 137 has a second number in which the number of downlink subframes is a second number smaller than the first number as a TDD configuration for wireless communication in the second frequency channel. Select a link direction configuration.
- two or more available channels on which wireless communication of the secondary system is performed include a first available channel closer to the primary channel and a second available channel further away from the primary channel. Including. Then, the configuration selection unit 137 selects the first TDD configuration in which the number of downlink subframes is N 1 as the TDD configuration for wireless communication in the first available channel. In addition, the configuration selection unit 137 sets the second TDD configuration in which the number of downlink subframes is N 2 (N 2 ⁇ N 1 ) as the TDD configuration for wireless communication in the second available channel. select.
- a TDD configuration with a larger number of downlink subframes is selected for an available channel closer to the primary channel, and a TDD configuration with a smaller number of downlink subframes is selected for an available channel farther from the primary channel. Is selected.
- the selection of such a TDD configuration is a selection. It can be realized automatically by selecting a TDD configuration from among the possible candidates.
- the configuration selection unit 137 determines that the individual frequency when the distance in the frequency direction between the interference frequency channel and the individual frequency channel is smaller than the distance D 3.
- a downlink dedicated TDD configuration is selected as the TDD configuration for wireless communication in the channel.
- the configuration selection unit 137 performs TDD configuration for wireless communication in each available channel. Select a dedicated TDD configuration for the downlink.
- the selection of such a TDD configuration is a selection. It can be realized automatically by selecting a TDD configuration from among the possible candidates.
- the configuration selection unit 137 may select one of the plurality of candidates in the one frequency channel. Select a TDD configuration for wireless communication.
- the configuration selection unit 137 selects a TDD configuration for wireless communication in the one available channel.
- the configuration selection unit 137 uses Configurations 0 to 6 as TDD configurations for wireless communication in the one available channel. Select one of the following.
- the target wireless communication is performed on one or more frequency channels, and the one or more frequency channels include interference frequencies at which interference signals are transmitted. including the distance D 4 more distant frequency channels in the frequency direction from the channel.
- the configuration selection unit 137 sets a TDD configuration in which the number of uplink subframes is larger than the predetermined number to a distance D 4 or more from the interference channel. Select as the TDD configuration for the distant frequency channel.
- the predetermined type of wireless communication is machine-to-machine communication.
- the wireless communication of the secondary system is carried out at one or more available channels, the one or more available channels, including the distance D 4 more distant frequency channels in the frequency direction from the primary channel.
- the configuration selection unit 137 sets a TDD configuration in which the number of uplink subframes is larger than a predetermined number to a frequency separated from the interference channel by a distance D4 or more. Select as the TDD configuration for the channel.
- TDD configuration By selecting such a TDD configuration, it is possible to further reduce the interference from the primary channel and improve the uplink throughput in wireless communication (for example, M2M communication) with high uplink traffic.
- wireless communication for example, M2M communication
- the configuration application unit 139 applies the selected TDD configuration to the target wireless communication.
- the configuration application unit 139 applies the selected TDD configuration to the wireless communication of the secondary system.
- target wireless communication is performed in two or more frequency channels
- target wireless communication is performed in two or more frequency channels.
- the configuration application unit 139 applies the TDD configuration selected for each individual frequency channel included in the two or more frequency channels to wireless communication in the individual frequency channel.
- wireless communication of the secondary system is performed using two or more available channels.
- the configuration application unit 139 applies the TDD configuration selected for each available channel included in the two or more available channels to wireless communication in the individual available channel.
- the configuration application unit 139 causes the selected TDD configuration to be set in the master WSD 200, so that the selected TDD configuration is subjected to target wireless communication (for example, wireless communication of the secondary system). Applies to
- the configuration application unit 139 notifies the master WSD 200 of the available channel related information, the available channel assignment result, and the TDD configuration selection result via the network communication unit 110. Upon receiving such notification, the master WSD 200 sets the selected TDD configuration for wireless communication on the allocated available channel. Thereafter, wireless communication is performed according to the selected TDD configuration.
- FIG. 12 is a block diagram showing an example of the configuration of the master WSD 200 according to the present embodiment.
- the master WSD 200 includes an antenna unit 210, a wireless communication unit 220, a network communication unit 230, a storage unit 240, and a control unit 250.
- the antenna unit 210 receives a radio signal and outputs the received radio signal to the radio communication unit 220.
- the antenna unit 210 transmits the transmission signal output from the wireless communication unit 220.
- the wireless communication unit 220 performs wireless communication with the slave WSD 300 when the slave WSD 300 is located within the communication range of the master WSD 200.
- Network communication unit 230 The network communication unit 230 communicates with other communication nodes. For example, the network communication unit 230 communicates with the AGLE 100.
- the storage unit 240 stores a program and data for the operation of the master WSD 200.
- the storage unit 240 stores usable channel related information, a usable channel assignment result, and a TDD configuration selection result.
- the storage unit 240 stores various control information provided from the AGLE 100 in addition to the above information.
- the storage unit 240 stores various control information provided to the AGLE 100.
- Control unit 250 The control unit 250 provides various functions of the master WSD 200.
- the control unit 250 includes an information acquisition unit 251, a configuration selection unit 253, a configuration application unit 255, and a communication control unit 257.
- the information acquisition unit 251 acquires information necessary for target wireless communication.
- the information acquisition unit 251 acquires the available channel related information, the available channel allocation result, and the TDD configuration selection result from the AGLE 100 via the network communication unit 230. Then, the information acquisition unit 251 stores these pieces of information in the storage unit 240.
- the information acquisition unit 251 acquires various other information provided from the AGLE 100 via the network communication unit 230 and stores the information in the storage unit 240.
- the information acquisition unit 251 acquires various control information provided to the AGLE 100 from the storage unit 240 and provides the various information to the AGLE 100 via the network communication unit 230.
- the configuration selection unit 253 selects a TDD configuration for target wireless communication from among a plurality of candidates for the TDD configuration.
- the configuration selection unit 253 selects a TDD configuration for wireless communication (that is, target wireless communication) in the secondary system from among a plurality of candidates for TDD configuration.
- the configuration selection unit 253 among the plurality of candidates, for each individual frequency channel included in the two or more frequency channels.
- the TDD configuration for wireless communication in the individual frequency channel is selected.
- the configuration selection unit 253 performs TDD configuration for each available channel included in the two or more available channels. Select.
- the configuration selection unit 253 selects a TDD configuration based on the selection result of the TDD configuration provided from the AGLE 100.
- the configuration application unit 255 applies the selected TDD configuration to the target wireless communication.
- the configuration application unit 255 applies the selected TDD configuration to the wireless communication of the secondary system.
- target wireless communication is performed in two or more frequency channels
- target wireless communication is performed in two or more frequency channels.
- the configuration application unit 255 applies the TDD configuration selected for each individual frequency channel included in the two or more frequency channels to wireless communication in each individual frequency channel.
- wireless communication of the secondary system is performed using two or more available channels.
- the configuration application unit 255 applies the TDD configuration selected for each available channel included in the two or more available channels to wireless communication in the individual available channel.
- the configuration application unit 255 sets the selected TDD configuration in the master WSD 200, thereby setting the selected TDD configuration as the target wireless communication (for example, the wireless communication of the secondary system). Applies to In addition, the configuration application unit 255 notifies the slave WSD 300 of the TDD configuration to be set via the wireless communication unit 220.
- the communication control unit 257 controls wireless communication according to a time division duplex (TDD) scheme.
- TDD time division duplex
- the wireless communication is wireless communication of a secondary system that secondarily uses a frequency channel for the primary system.
- the communication control unit 257 controls the wireless communication of the secondary system according to the TDD scheme according to the set TDD configuration. That is, the communication control unit 257 causes the radio communication unit 220 to transmit a downlink signal in the downlink subframe and to receive an uplink signal in the uplink subframe.
- FIG. 13 is a block diagram illustrating an example of the configuration of the slave WSD 300 according to the present embodiment.
- the slave WSD 300 includes an antenna unit 310, a wireless communication unit 320, a storage unit 330, and a control unit 340.
- the antenna unit 310 receives a radio signal and outputs the received radio signal to the radio communication unit 320. Further, the antenna unit 310 transmits the transmission signal output from the wireless communication unit 320.
- the wireless communication unit 320 performs wireless communication with the master WSD 200 when the slave WSD 300 is located within the communication range of the master WSD 200.
- the storage unit 330 stores a program and data for the operation of the slave WSD 300.
- the storage unit 330 stores the TDD configuration set by the master WSD 200.
- the storage unit 330 stores information provided from the master WSD 200 in addition to the above information.
- the storage unit 330 stores various control information provided to the master WSD 200.
- the control unit 340 provides various functions of the slave WSD 300.
- the control unit 340 includes an information acquisition unit 341, a configuration recognition unit 343, and a communication control unit 345.
- the information acquisition unit 341 acquires information necessary for target wireless communication.
- the information acquisition unit 341 acquires the set TDD configuration from the master WSD 200 via the wireless communication unit 320. Then, the information acquisition unit 34 causes the storage unit 330 to store the TDD configuration to be set.
- the information acquisition unit 341 acquires other various types of information provided from the master WSD 200 via the wireless communication unit 320 and stores the information in the storage unit 330.
- the information acquisition unit 341 acquires various control information to be provided to the master WSD 200 from the storage unit 330 and provides the various information to the master WSD 200 via the wireless communication unit 320.
- the configuration recognition unit 343 recognizes a TDD configuration applied to the target wireless communication among a plurality of candidates for the TDD configuration.
- the information acquisition unit 341 acquires the set TDD configuration from the master WSD 200. Then, the configuration recognition unit 343 recognizes the set TDD configuration.
- the communication control unit 345 controls wireless communication according to a time division duplex (TDD) scheme.
- TDD time division duplex
- the wireless communication is wireless communication of a secondary system that secondarily uses a frequency channel for the primary system.
- the communication control unit 345 controls the wireless communication of the secondary system according to the TDD scheme in accordance with the set TDD configuration. That is, the communication control unit 345 causes the wireless communication unit 320 to transmit a downlink signal in the downlink subframe and to receive an uplink signal in the uplink subframe.
- FIG. 14 is a sequence diagram illustrating an example of a schematic flow of a communication control process according to the present embodiment.
- the GLDB 50 and the AGLE 100 exchange information periodically or according to a predetermined trigger (step S401).
- Information exchanged here includes, for example, synchronization information (NTP information, GPS (Global Positioning System) and IEEE 1588 (protocol for synchronizing clocks of base stations distributed on the network), time correction information, etc.), ID information, management area information (country, region, latitude, longitude, height, etc.), security information (security key for mutual authentication, etc.), information update cycle information, backup related information, primary system transmitter information ( Antenna height, position (latitude, longitude), transmission spectrum mask information, use frequency related information (center frequency, bandwidth), antenna gain, antenna directivity, etc.) are included.
- synchronization information NTP information, GPS (Global Positioning System) and IEEE 1588 (protocol for synchronizing clocks of base stations distributed on the network), time correction information, etc.
- ID information ID information
- management area information country, region, latitude, longitude, height, etc.
- security information security key for mutual authentication, etc.
- AGLE 100 and master WSD 200 exchange information periodically or according to a predetermined trigger (step S403).
- the information exchanged here includes, for example, synchronization information, ID information, management area information, security information, information update cycle information, backup related information, transceiver information of the master WSD 200 and slave WSD 300 (the height of the antenna, the position ( Latitude, longitude), transmission spectrum mask information, use frequency related information (center frequency, bandwidth), antenna gain, antenna directivity, etc.).
- the AGLE 100 determines information on available channels for the secondary system (that is, available channel related information) (step S405).
- the available channel related information includes available time for each available channel, center frequency, bandwidth, maximum transmission power, and transmission spectrum mask related information.
- AGLE100 selectable candidate determination part 133) determines one or more selectable candidates (TDD configuration) among the several candidates of TDD configuration for every available channel. The one or more selectable candidates are determined based on information on the distance in the frequency direction between the primary channel and each available channel (ie, distance related information). Then, the information of one or more selectable candidates determined in this way is added to the available channel related information.
- AGLE 100 channel allocation unit 135) allocates one or more available channels to the wireless communication of the secondary system (step S407).
- AGLE100 (configuration selection part 137) carries out the TDD configuration for the radio
- the AGLE 100 (configuration application unit 139) notifies the master WSD 200 of the selection result of the TDD configuration (step S411).
- the AGLE 100 also notifies the master WSD 200 of the available channel related information and the available channel allocation result.
- the master WSD 200 sets the TDD configuration selected for each available channel in the master WSD 200 (S413).
- the master WSD 200 (communication control unit 257) starts the secondary system wireless communication according to the TDD method in accordance with the set TDD configuration (S415).
- the AGLE 100 determines a selectable candidate, assigns an available channel, and selects a TDD configuration.
- the GLDB 50 performs selection of a selectable candidate, allocation of an available channel, and selection of a TDD configuration. That is, in the first modified example, the functions of the selectable candidate determination unit 133, the channel allocation unit 135, and the configuration selection unit 137 in the AGLE 100 are provided in the GLDB 50, not the AGLE 100.
- FIG. 1 an example of the communication control process according to the first modification will be described with reference to FIG.
- FIG. 15 is a sequence diagram illustrating an example of a schematic flow of a communication control process according to the first modification of the present embodiment. Note that steps S501, S503, S513, S515, and S517 are the same as steps S401, S403, S411, S413, and S415 of the communication control process described with reference to FIG. Therefore, only steps S505, S507, S509, and S511 will be described here.
- the GLDB 50 determines information on available channels for the secondary system (that is, available channel related information) (step S505).
- the available channel related information includes available time for each available channel, center frequency, bandwidth, maximum transmission power, and transmission spectrum mask related information.
- the GLDB 50 determines one or more selectable candidates (TDD configuration) among a plurality of candidates of the TDD configuration for each available channel. The one or more selectable candidates are determined based on information on the distance in the frequency direction between the primary channel and each available channel (ie, distance related information). Then, the information of one or more selectable candidates determined in this way is added to the available channel related information.
- the GLDB 50 allocates one or more available channels to the secondary system wireless communication (step S507).
- the GLDB 50 selects a TDD configuration for wireless communication in the individual available channel among a plurality of candidates for the TDD configuration for each assigned available channel (step S509).
- the GLDB 50 notifies the AGLE 100 of the selection result of the TDD configuration (step S511).
- the GLDB 50 also notifies the AGLE 100 of the available channel related information and the available channel allocation result.
- determination of a selectable candidate, allocation of an available channel, and selection of a TDD configuration are performed by the GLDB 50. It should be noted that some of the determination of selectable candidates, allocation of available channels, and selection of the TDD configuration may be performed by the GLDB 50, and the rest may be performed by the AGLE 100.
- the AGLE 100 selects a TDD configuration.
- the macro WSD 200 selects the TDD configuration. That is, in the second modification, the function of the configuration selection unit 137 in the AGLE 100 is provided in the master WSD 200 instead of the AGLE 100.
- the communication control process according to the second modified example will be described with reference to FIG.
- FIG. 16 is a sequence diagram illustrating an example of a schematic flow of a communication control process according to the second modification of the present embodiment. Note that steps S601 to S607, S613, and S615 are the same as steps S401 to S407, S413, and S415 of the communication control process described with reference to FIG. Therefore, only steps S609 and S611 will be described here.
- the AGLE 100 notifies the master WSD 200 of the available channel related information and the available channel allocation result (step S609).
- the master WSD 200 selects a TDD configuration for wireless communication in the individual available channel among a plurality of candidates for the TDD configuration for each assigned available channel (step S611). .
- the selection of the TDD configuration is performed by the macro WSD 200.
- determination of a selectable candidate and / or allocation of an available channel may be further performed by the GLDB 50.
- the third modification of the present embodiment not only the primary system under the control of one GLDB 50 corresponding to one country but also the primary system under the control of the GLDB 50 corresponding to another country is considered. That is, a technique for suppressing or avoiding interference from the primary system to the secondary system under the management of the GLDB 50 corresponding to another country is provided.
- FIG. 17 is an explanatory diagram for explaining an example of an arrangement of each device that is a premise of the third embodiment.
- a boundary 60 between Country A and Country B is shown.
- the boundary 60 does not necessarily coincide with the border, and may be set flexibly from the viewpoint of frequency band management.
- the third modification is widely applicable not only to national boundaries but also to secondary use control at regional boundaries that may include communities, states, or prefectures.
- GLDB 50A is a regulatory database that manages data on frequency channels managed by Country A.
- AGLE 100A is a secondary system management node operated by a frequency management entity or a third party in country A.
- the GLDB 50B is a regulatory database that manages data on frequency channels managed by Country B.
- AGLE 50B is a secondary system management node operated by a frequency management entity or a third party in country B.
- the master WSD 200A is a device that operates the secondary system near the boundary 60 in the region of country A.
- Master WSD 200B is a device that operates the secondary system in the vicinity of boundary 60 in the region of country B.
- the master WSD 200A in country A may be affected not only by the primary system in country A but also by the primary system in country B.
- the master WSD 200B in Country B may be affected not only by the primary system in Country B but also by the primary system in Country A.
- CRM Coordinated Resource Management
- the CRM verifies that a primary system in another country can affect a secondary system in one country and makes adjustments for available channels as necessary.
- the CRM is implemented as part of the AGLE 100.
- FIGS. 18A and 18B are sequence diagrams illustrating an example of a schematic flow of a communication control process according to the third modification of the present embodiment.
- the GLDB 50A and the AGLE 100A exchange information periodically or according to a predetermined trigger (step S701).
- the GLDB 50B and the AGLE 100B also exchange information periodically or according to a predetermined trigger.
- the information exchanged here is as described for step S401 shown in FIG.
- AGLE 100A and master WSD 200A exchange information periodically or according to a predetermined trigger (step S703).
- AGLE 100B and master WSD 200B also exchange information periodically or according to a predetermined trigger. The information exchanged here is as described with respect to step S403 shown in FIG.
- AGLE 100A determines information on available channels for the secondary system in country A (that is, available channel related information) (step S705).
- AGLE 100B also determines information about available channels for the secondary system in country B (ie, available channel related information).
- the determined available channel related information includes information on one or more selectable candidates (TDD configuration).
- AGLE 100A and AGLE 100B exchange information (step S707).
- the information exchanged here includes a part or all of the information exchanged in steps S701 and S703.
- each of AGLE 100A and AGLE 100B checks whether there is a primary system that has an influence on its own secondary system, which is a primary system in another country that cannot be known. And when there exists such a primary system, AGLE100 estimates the influence (for example, interference level) from the said primary system to a secondary system. If the influence is greater than or equal to the predetermined level, the AGLE 100 corrects the available channel information and determines again (step S709).
- the repair of the available channel information may be, for example, a change of a selectable candidate of the TDD configuration, a reduction of the affected available channel bandwidth, or a deletion of the available channel. .
- AGLE 100A and AGLE 100B exchange information again (step S711).
- the information exchanged here includes, for example, usable channel related information determined again.
- AGLE 100A and AGLE 100B mutually confirm and agree on redetermination of available channel related information.
- steps S721 to S729 processing similar to that in steps S407 to S415 described with reference to FIG. 14 is performed.
- step S713 may be performed not only by both AGLE100A and AGLE100B but by only one side.
- which of the AGLE 100A and the AGLE 100B performs the processing may be determined based on the processing load in each device, or may be determined at random.
- the processing may be alternately performed by AGLE 100A and AGLE 100B.
- a dedicated frequency channel may be secured in order to avoid the problem of interference near the boundary 60.
- the use of the dedicated frequency channel may be permitted.
- the CRM is arranged in the AGLE 100.
- the arrangement of the CRM according to the third embodiment is not limited to this example.
- a specific example of this point will be described with reference to FIGS. 19 and 20.
- FIG. 19 is an explanatory diagram for explaining another example of the arrangement of CRMs.
- GLDB 50A and AGLE 100A, and GLDB 50B and AGLE 100B are shown, as in FIG.
- the CRM 300 may be implemented as a device that is physically independent of the GLDB 50 and the AGLE 100 and may be communicably connected to the GLDB 50 and the AGLE 100.
- Such a CRM 300 exchanges information with, for example, AGLE 100A and AGLE 100B (and GLDB 50A and GLDB 50B), and checks whether there is a primary system in the other country that affects the secondary system in one country. And when there exists such a primary system, CRM300 estimates the influence (for example, interference level) from the said primary system to a secondary system. If the effect is above a predetermined level, the CRM 300 corrects the available channel information and determines again.
- influence for example, interference level
- FIG. 20 is an explanatory diagram for explaining still another example of the arrangement of CRMs.
- GLDB 50A and AGLE 100A, and GLDB 50B and AGLE 100B are shown, as in FIG.
- the CRM may be implemented as part of the GLDB 50.
- GLDB 50 including such a CRM in part checks, for example, whether there is a primary system in the other country that affects the secondary system in one country. When there is such a primary system, the GLDB 50 calculates the influence (for example, interference level) from the primary system to the secondary system. If the influence is above a predetermined level, the GLDB 50 corrects the available channel information and determines again.
- influence for example, interference level
- the third modification of the present embodiment has been described above. According to the third modification of the present embodiment, not only interference from the primary system in the same country, but also interference from primary systems in other countries is suppressed or avoided.
- the technology according to the present embodiment is also applicable to a case where interference can occur between such a macro cell and a small cell. That is, the target radio communication may be radio communication in a small cell partially or entirely overlapped with the macro cell, and the interference frequency channel may be a frequency channel used in the macro cell.
- the technology according to the present embodiment can be applied to an LSA case based on infrastructure sharing.
- the technology according to this embodiment causes interference between a system operated by MVNO (Mobile Virtual Network Operator) and / or MVNE (Mobile Virtual Network Enabler) and a system operated by MNO (Mobile Network Operator). It can also be applied to cell cases.
- the technique according to the present embodiment is also applicable to a case where MBMS (Multimedia Broadcast Multicast Service) is applied. Specifically, for example, when the same signal is simultaneously transmitted synchronously from multiple base stations using the MBSFN (MBMS Single Frequency Network) transmission method, a TDD configuration dedicated to downlink for wireless communication in (multiple) frequency channels. May be applied. In this case, processing related to uplink channel allocation may be omitted.
- MBSFN MBMS Single Frequency Network
- each of AGLE 100 and GLDB 50 may be implemented as any type of server such as a tower server, a rack server, or a blade server.
- Each of AGLE 100 and GLDB 50 may be a control module (for example, an integrated circuit module configured by one die or a card or a blade inserted in a slot of a blade server) mounted on a server.
- the master WSD 200 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 master WSD 200 may be realized as another type of base station such as a NodeB or a BTS (Base Transceiver Station).
- Master WSD 200 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 described later may operate as the master WSD 200 by temporarily or semi-permanently executing the base station function.
- the slave WSD 300 is a mobile terminal such as a smart phone, a tablet PC (Personal Computer), a notebook PC, a portable game terminal, a portable / dongle type mobile router or a digital camera, or an in-vehicle terminal such as a car navigation device. It may be realized.
- the slave WSD 300 may be realized as a terminal (also referred to as an MTC (Machine Type Communication) terminal) that performs M2M (Machine To Machine) communication.
- the slave WSD 300 may be a wireless communication module (for example, an integrated circuit module configured by one die) mounted on these terminals.
- FIG. 21 is a block diagram illustrating an example of a schematic configuration of the server 750 to which the technology according to the present disclosure can be applied.
- the server 750 includes a processor 751, a memory 752, a storage 753, a network interface 754, and a bus 756.
- the processor 751 may be a CPU (Central Processing Unit) or a DSP (Digital Signal Processor), for example, and controls various functions of the server 750.
- the memory 752 includes a RAM (Random Access Memory) and a ROM (Read Only Memory), and stores programs and data executed by the processor 751.
- the storage 753 can include a storage medium such as a semiconductor memory or a hard disk.
- the network interface 754 is a wired communication interface for connecting the server 750 to the wired communication network 755.
- the wired communication network 755 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 756 connects the processor 751, the memory 752, the storage 753, and the network interface 754 to each other.
- the bus 756 may include two or more buses with different speeds (eg, a high speed bus and a low speed bus).
- the configuration selection unit 137 and the configuration application unit 139 described with reference to FIG. 9 may be implemented in the processor 751. Further, the channel recognition unit 132 and the selectable candidate determination unit 133 described with reference to FIG. 9 may be implemented in the processor 751.
- FIG. 22 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. 22, and the plurality of antennas 810 may respectively correspond to a plurality of frequency bands used by the eNB 800, for example. 22 shows an example in which the eNB 800 includes a plurality of antennas 810, but 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 includes a plurality of BB processors 826 as illustrated in FIG. 22, 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. 22, and the plurality of RF circuits 827 may respectively correspond to a plurality of antenna elements, for example. 22 illustrates an example in which the wireless communication interface 825 includes a plurality of BB processors 826 and a plurality of RF circuits 827, the wireless communication interface 825 includes a single BB processor 826 or a single RF circuit 827. But you can.
- FIG. 23 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. 23, and the plurality of antennas 840 may respectively correspond to a plurality of frequency bands used by the eNB 830, for example. Note that although FIG. 23 illustrates an example in which the eNB 830 includes a plurality of antennas 840, 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. 22 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. 23, and the plurality of BB processors 856 may respectively correspond to a plurality of frequency bands used by the eNB 830, for example.
- 23 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 illustrated in FIG. 23, and the plurality of RF circuits 864 may correspond to, for example, a plurality of antenna elements, respectively.
- FIG. 23 illustrates an example in which the wireless communication interface 863 includes a plurality of RF circuits 864, but the wireless communication interface 863 may include a single RF circuit 864.
- the configuration selection unit 253 and the configuration application unit 255 described with reference to FIG. 12 include the radio communication interface 825, the radio communication interface 855, and / or the radio communication interface 863. May be implemented. Further, at least a part of these functions may be implemented in the controller 821 and the controller 851.
- FIG. 24 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 906, a sensor 907, a microphone 908, an input device 909, a display device 910, a speaker 911, a wireless communication interface 912, one or more antenna switches 915.
- One or more antennas 916, a bus 917, a battery 918 and an auxiliary controller 919 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 906 includes, for example, an image sensor such as a CCD (Charge Coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor), and generates a captured image.
- the sensor 907 may include a sensor group such as a positioning sensor, a gyro sensor, a geomagnetic sensor, and an acceleration sensor.
- the microphone 908 converts sound input to the smartphone 900 into an audio signal.
- the input device 909 includes, for example, a touch sensor that detects a touch on the screen of the display device 910, a keypad, a keyboard, a button, or a switch, and receives an operation or information input from a user.
- the display device 910 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 911 converts an audio signal output from the smartphone 900 into audio.
- the wireless communication interface 912 supports any cellular communication method such as LTE or LTE-Advanced, and performs wireless communication.
- the wireless communication interface 912 may typically include a BB processor 913, an RF circuit 914, and the like.
- the BB processor 913 may perform, for example, encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing, and performs various signal processing for wireless communication.
- the RF circuit 914 may include a mixer, a filter, an amplifier, and the like, and transmits and receives radio signals via the antenna 916.
- the wireless communication interface 912 may be a one-chip module in which the BB processor 913 and the RF circuit 914 are integrated.
- the wireless communication interface 912 may include a plurality of BB processors 913 and a plurality of RF circuits 914 as illustrated in FIG. 24 shows an example in which the wireless communication interface 912 includes a plurality of BB processors 913 and a plurality of RF circuits 914, the wireless communication interface 912 includes a single BB processor 913 or a single RF circuit 914. But you can.
- the wireless communication interface 912 may support other types of wireless communication methods such as a short-range wireless communication method, a proximity wireless communication method, or a wireless LAN (Local Area Network) method in addition to the cellular communication method.
- a BB processor 913 and an RF circuit 914 for each wireless communication method may be included.
- Each of the antenna switches 915 switches the connection destination of the antenna 916 among a plurality of circuits (for example, circuits for different wireless communication systems) included in the wireless communication interface 912.
- Each of the antennas 916 includes 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 radio communication interface 912.
- the smartphone 900 may include a plurality of antennas 916 as illustrated in FIG. Note that FIG. 24 illustrates an example in which the smartphone 900 includes a plurality of antennas 916, but the smartphone 900 may include a single antenna 916.
- the smartphone 900 may include an antenna 916 for each wireless communication method.
- the antenna switch 915 may be omitted from the configuration of the smartphone 900.
- the bus 917 connects the processor 901, the memory 902, the storage 903, the external connection interface 904, the camera 906, the sensor 907, the microphone 908, the input device 909, the display device 910, the speaker 911, the wireless communication interface 912, and the auxiliary controller 919 to each other.
- the battery 918 supplies electric power to each block of the smartphone 900 shown in FIG. 24 through a power supply line partially shown by a broken line in the drawing.
- the auxiliary controller 919 operates the minimum necessary functions of the smartphone 900 in the sleep mode.
- the configuration recognition unit 343 and the communication control unit 345 described with reference to FIG. 13 may be implemented in the wireless communication interface 912. In addition, at least a part of these functions may be implemented in the processor 901 or the auxiliary controller 919.
- FIG. 25 is a block diagram illustrating an example of a schematic configuration of a car navigation device 920 to which the technology according to the present disclosure can be applied.
- the car navigation device 920 includes a processor 921, a memory 922, a GPS (Global Positioning System) module 924, a sensor 925, a data interface 926, a content player 927, a storage medium interface 928, an input device 929, a display device 930, a speaker 931, and wireless communication.
- the interface 933 includes one or more antenna switches 936, one or more antennas 937, and a battery 938.
- the processor 921 may be a CPU or SoC, for example, and controls the navigation function and other functions of the car navigation device 920.
- the memory 922 includes RAM and ROM, and stores programs and data executed by the processor 921.
- the GPS module 924 measures the position (for example, latitude, longitude, and altitude) of the car navigation device 920 using GPS signals received from GPS satellites.
- the sensor 925 may include a sensor group such as a gyro sensor, a geomagnetic sensor, and an atmospheric pressure sensor.
- the data interface 926 is connected to the in-vehicle network 941 through a terminal (not shown), for example, and acquires data generated on the vehicle side such as vehicle speed data.
- the content player 927 reproduces content stored in a storage medium (for example, CD or DVD) inserted into the storage medium interface 928.
- the input device 929 includes, for example, a touch sensor, a button, or a switch that detects a touch on the screen of the display device 930, and receives an operation or information input from the user.
- the display device 930 has a screen such as an LCD or an OLED display, and displays a navigation function or an image of content to be reproduced.
- the speaker 931 outputs the navigation function or the audio of the content to be played back.
- the wireless communication interface 933 supports any cellular communication method such as LTE or LTE-Advanced, and performs wireless communication.
- the wireless communication interface 933 may typically include a BB processor 934, an RF circuit 935, and the like.
- the BB processor 934 may perform, for example, encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing, and performs various signal processing for wireless communication.
- the RF circuit 935 may include a mixer, a filter, an amplifier, and the like, and transmits and receives a radio signal via the antenna 937.
- the wireless communication interface 933 may be a one-chip module in which the BB processor 934 and the RF circuit 935 are integrated.
- the wireless communication interface 933 may include a plurality of BB processors 934 and a plurality of RF circuits 935 as shown in FIG. FIG. 25 shows an example in which the wireless communication interface 933 includes a plurality of BB processors 934 and a plurality of RF circuits 935. However, the wireless communication interface 933 includes a single BB processor 934 or a single RF circuit 935. But you can.
- the wireless communication interface 933 may support other types of wireless communication methods such as a short-range wireless communication method, a proximity wireless communication method, or a wireless LAN method in addition to the cellular communication method.
- a BB processor 934 and an RF circuit 935 may be included for each communication method.
- Each of the antenna switches 936 switches the connection destination of the antenna 937 among a plurality of circuits included in the wireless communication interface 933 (for example, circuits for different wireless communication systems).
- Each of the antennas 937 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 radio communication interface 933.
- the car navigation device 920 may include a plurality of antennas 937 as shown in FIG. FIG. 25 illustrates an example in which the car navigation device 920 includes a plurality of antennas 937, but the car navigation device 920 may include a single antenna 937.
- the car navigation device 920 may include an antenna 937 for each wireless communication method.
- the antenna switch 936 may be omitted from the configuration of the car navigation device 920.
- the battery 938 supplies power to each block of the car navigation apparatus 920 shown in FIG. 25 through a power supply line partially shown by broken lines in the drawing. Further, the battery 938 stores electric power supplied from the vehicle side.
- the configuration recognition unit 343 and the communication control unit 345 described with reference to FIG. 13 may be implemented in the wireless communication interface 933. Further, at least a part of these functions may be implemented in the processor 921.
- the technology according to the present disclosure may be realized as an in-vehicle system (or vehicle) 940 including one or more blocks of the car navigation device 920 described above, an in-vehicle network 941, and a vehicle side module 942.
- vehicle-side module 942 generates vehicle-side data such as vehicle speed, engine speed, or failure information, and outputs the generated data to the in-vehicle network 941.
- a TDD configuration for wireless communication is selected. Then, the selected TDD configuration is applied to the wireless communication.
- the plurality of candidates include at least one of a downlink dedicated TDD configuration and an uplink dedicated TDD configuration.
- the plurality of candidates include a TDD configuration dedicated to downlink.
- the plurality of candidates include an uplink dedicated TDD configuration.
- the plurality of candidates include both a downlink dedicated TDD configuration and an uplink dedicated TDD configuration.
- wireless communication may be performed temporarily and / or in some frequency channels in the same manner as when FDD is employed as a duplex system. It becomes possible to do. As a result, it is possible to improve uplink throughput while suppressing interference from the primary channel.
- one of a plurality of TDD configuration candidates that can be selected for application to wireless communication in the individual frequency channel are determined.
- the one or more selectable candidates are determined based on information on distances in the frequency direction between the interference frequency channel through which an interference signal is transmitted and the individual frequency channels (that is, distance related information).
- the one or more selectable candidate when the distance between the interference frequency channels and said individual frequency channels is smaller than the distance D 1, which is a downlink dedicated TDD configuration.
- a TDD configuration of only a downlink subframe (a TDD configuration without an uplink subframe) is selected and applied.
- uplink wireless communication is not performed on the available channel, and only downlink wireless communication is performed. Therefore, interference in the available channel can be suppressed. That is, a decrease in SINR in the available channel can be suppressed.
- the one or more selectable candidate when the distance between the interference frequency channels and said individual frequency channels is greater than the distance D 2, includes an uplink dedicated TDD configuration.
- the one or more selectable candidates include a TDD configuration in which the number of uplink subframes is large when the distance in the frequency direction between the interference frequency channel and the individual frequency channel is large.
- the available channel is farther from the primary channel (interference frequency channel)
- a TDD configuration having a larger number of uplink subframes can be selected for the available channel.
- the closer the available channel is to the primary channel (interference frequency channel) the more the TDD configuration with a smaller number of uplink subframes can be selected for the available channel. Therefore, interference in the available channel can be suppressed by selecting such a TDD configuration. That is, a decrease in SINR in the available channel can be suppressed.
- processing steps in the communication control processing of this specification do not necessarily have to be executed in time series in the order described in the flowchart.
- the processing steps in the communication control process may be executed in an order different from the order described in the flowchart, or may be executed in parallel.
- the communication control device for example, GLDB, AGLE, master WSD
- the communication device for example, slave WSD
- a computer program for demonstrating equivalent functions can also be created.
- a storage medium storing the computer program is also provided.
- a communication control device for controlling wireless communication according to a time division duplex (TDD) system, A selection unit that selects a link direction configuration for wireless communication among a plurality of candidates for a link direction configuration that represents a link direction in a subframe unit in a radio frame including a plurality of subframes; An application unit for applying the selected link direction configuration to the wireless communication; With The plurality of candidates includes at least one of a downlink-only link direction configuration and an uplink-only link direction configuration; Communication control device.
- the communication control device according to (1) or (2), wherein the plurality of candidates include a link direction configuration dedicated to the uplink.
- the uplink dedicated link direction configuration includes the link direction configuration in which uplink transmission is not performed in part or all of the first subframe of the plurality of subframes. Communication control device.
- the selection unit selects the individual frequency of the plurality of candidates for each frequency channel included in the two or more frequency channels. Select the link direction configuration for wireless communication on the channel, The application unit applies the link direction configuration selected for each individual frequency channel to wireless communication in the individual frequency channel.
- the communication control apparatus according to any one of (1) to (4).
- the selection unit selects a link direction configuration for wireless communication in the individual frequency channel from one or more selectable candidates of the plurality of candidates, The one or more selectable candidates are determined based on information regarding a distance in a frequency direction between an interference frequency channel on which an interference signal is transmitted and the individual frequency channel.
- the communication control device according to (5).
- the communication control apparatus according to (6), wherein the one or more selectable candidates are further determined based on information related to quality of service required for the wireless communication.
- the one or more selectable candidates are the downlink dedicated link direction configuration when the distance between the interference frequency channel and the individual frequency channel is less than a first distance, The communication control device according to 6) or (7).
- the one or more selectable candidates include a link direction configuration dedicated to the uplink when the distance between the interference frequency channel and the individual frequency channel is greater than a second distance.
- the communication control device according to any one of 6) to (8).
- the one or more selectable candidates include a link direction configuration with a larger number of uplink subframes when the distance between the interfering frequency channel and the individual frequency channel is greater (6
- the communication control device according to any one of (9) to (9).
- the two or more frequency channels include a first frequency channel that is closer to the interfering frequency channel on which the interference signal is transmitted and a second frequency channel that is further away from the interfering frequency channel;
- the selection unit selects a first link direction configuration in which the number of downlink subframes is a first number as a link direction configuration for wireless communication in the first frequency channel, and the second Selecting a second link direction configuration in which the number of downlink subframes is a second number smaller than the first number as a link direction configuration for wireless communication in the frequency channel of
- the communication control apparatus according to any one of (5) to (10).
- the selection unit is configured to perform a link direction for wireless communication in the individual frequency channel.
- the communication control apparatus according to any one of (5) to (11), wherein a link direction configuration dedicated to the downlink is selected as a configuration.
- the wireless communication is performed in one or more frequency channels;
- the one or more frequency channels include a frequency channel separated by a fourth distance or more in the frequency direction from an interference frequency channel through which an interference signal is transmitted.
- the communication control apparatus according to any one of (1) to (12).
- the selecting unit sets a link direction configuration in which the number of uplink subframes is larger than a predetermined number from the interference frequency channel to the fourth distance or more. Selecting as a link direction configuration for the frequency channel away;
- the communication control device according to (13).
- the communication control apparatus according to (14), wherein the predetermined type of wireless communication is machine-to-machine communication.
- the wireless communication is a secondary system wireless communication that secondarily uses a frequency channel for the primary system,
- the interference frequency channel is a frequency channel used in another radio communication system different from the secondary system.
- the communication control device according to any one of (6) to (15).
- the wireless communication is wireless communication in a small cell partially or entirely overlapped with a macro cell,
- the interference frequency channel is a frequency channel used in the macro cell.
- the communication control device according to any one of (6) to (15).
- TDD time division duplex
- a communication device for controlling wireless communication according to a time division duplex (TDD) system A recognition unit for recognizing a link direction configuration applied to the wireless communication among a plurality of link direction configuration candidates representing a link direction in a subframe unit in a radio frame including a plurality of subframes; A communication control unit for controlling the wireless communication according to the recognized link direction configuration; With The plurality of candidates includes at least one of a downlink-only link direction configuration and an uplink-only link direction configuration; Communication device.
- TDD time division duplex
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
- Bidirectional Digital Transmission (AREA)
Abstract
Description
1.はじめに
1.1.複信方式に関する動向
1.2.技術的課題
1.3.本実施形態に係る新たな手法
2.本実施形態に係る通信システムの概略的な構成
3.各装置の構成
3.1.AGLEの構成
3.2.マスタWSDの構成
3.3.スレーブWSDの構成
4.処理の流れ
5.変形例
5.1.第1の変形例
5.2.第2の変形例
5.3.第3の変形例
6.応用例
6.1.AGLE及びGLDBに関する応用例
6.2.マスタWSDに関する応用例
6.3.スレーブWSDに関する応用例
7.まとめ
まず、複信方式に関する動向、技術的課題、及び本実施形態に係る新たな手法を説明する。
TVホワイトスペースについての複信方式として、周波数分割複信(Frequency Division Duplex:FDD)又は時分割複信(Time Division Duplex:TDD)が採用され得る。FDDでは、アップリンク用の周波数チャネル及びダウンリンク用の周波数チャネルをそれぞれ用意することになるが、TDDでは、周波数チャネルをアップリンク及びダウンリンクに柔軟に割り当てることが可能である。
一般的に、周波数帯域を二次的に利用する送信機の送信電力は、プライマリシステムの受信機に有害な干渉を与えないように制限される。しかし、周波数帯域を二次的に利用するセカンダリシステムの受信機にプライマリシステムの送信機の送信電力が与える影響については、具体的に考慮されていない。そのため、プライマリシステムについての送信電力がセカンダリシステムに大きな影響を与え得る。以下、図2、図3及び図4を参照して、プライマリシステムについての送信電力がセカンダリシステムに与える影響の例を説明する。
-新たなTDDコンフィギュレーションの定義
図1を参照して既に説明したように、例えば3GPPにおいて7つのTDDコンフィギュレーションが定義されている。とりわけ本実施形態では、新たなTDDコンフィギュレーションが定義される。具体的には、ダウンリンク専用のTDDコンフィギュレーション、及び/又はアップリンク専用のTDDコンフィギュレーションが、新たに定義される。以下、図6及び図7を参照して新たなTDDコンフィギュレーションの例を説明する。
続いて、図8を参照して、本開示の実施形態に係る通信システムの概略的な構成を説明する。図8は、本実施形態に係る通信システム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、通信システム1は、GLDB(Geo-Location Database)50、AGLE(Advanced Geo-Location Engine)100、マスタWSD(White Space Device)200及びスレーブWSDを含む。なお、この例は、TVホワイトスペースに関する通信システムの例である。
続いて、図9~図13を参照して、本実施形態に係るAGLE100、マスタWSD200及びスレーブWSD300の構成の一例を説明する。
図9~図11を参照して、本実施形態に係るAGLE100の構成の一例を説明する。図9は、本実施形態に係るAGLE100の構成の一例を示すブロック図である。図9を参照すると、AGLE100は、ネットワーク通信部110、記憶部120及び制御部130を備える。
ネットワーク通信部110は、他の通信ノードと通信する。例えば、ネットワーク通信部110は、GLDB50及びマスタWSD200と通信する。
記憶部120は、AGLE100の動作のためのプログラム及びデータを記憶する。
制御部130は、AGLE100の様々な機能を提供する。制御部130は、情報取得部131、チャネル認識部132、選択可能候補決定部133、チャネル割当部135、コンフィギュレーション選択部137及びコンフィギュレーション適用部139を含む。
情報取得部131は、セカンダリシステムのための利用可能チャネルに関する情報(即ち、利用可能チャネル関連情報)を取得する。
チャネル認識部132は、AGLE100により制御される無線通信(以下、「対象無線通信」と呼ぶ)が行われる周波数チャネルを認識する。
例えば、対象無線通信が2つ以上の周波数チャネルにおいて行われる。この場合に、選択可能候補決定部133は、上記2つ以上の周波数チャネルに含まれる個々の周波数チャネルごとに、TDDコンフィギュレーションの複数の候補のうちの、上記個々の周波数チャネルにおける無線通信に適用するために選択可能な1つ以上の候補(以下、「選択可能候補」と呼ぶ)を決定する。また、選択可能候補決定部133は、干渉信号が送信される干渉周波数チャネルと上記個々の周波数チャネルとの周波数方向の距離に関する情報(以下、「距離関連情報」と呼ぶ)に基づいて、上記1つ以上の選択可能候補を決定する。例えば、上記干渉周波数チャネルは、セカンダリシステムと異なる別の無線通信システムにおいて用いられる周波数チャネルである。一例として、当該干渉周波数チャネルは、当該セカンダリシステムに対応するプライマリシステム(又は、別のプライマリシステム)において用いられる周波数チャネル(即ち、プライマリチャネル)である。
--第1の例
第1の例として、上記1つ以上の選択可能候補は、上記干渉周波数チャネルと上記個々の周波数チャネルとの距離が距離D1よりも小さい場合に、ダウンリンク専用のTDDコンフィギュレーションである。即ち、選択可能候補決定部133は、上記干渉周波数チャネルと上記個々の周波数チャネルとの距離が第1の距離よりも小さい場合に、ダウンリンク専用のTDDコンフィギュレーションを選択可能候補として決定する。
第2の例として、上記1つ以上の選択可能候補は、上記干渉周波数チャネルと上記個々の周波数チャネルとの距離が距離D2よりも大きい場合に、アップリンク専用のTDDコンフィギュレーションを含む。
第3の例として、上記1つ以上の選択可能候補は、上記干渉周波数チャネルと上記個々の周波数チャネルとの周波数方向における距離がより大きい場合に、アップリンクサブフレームの数がより大きいTDDコンフィギュレーションを含む。
また、上記1つ以上の選択可能な候補は、対象無線通信に要求されるサービス品質(Quality of Service:QoS)に関する情報(以下、「QoS関連情報」と呼ぶ)にさらに基づいて決定されてもよい。即ち、選択可能候補決定部133は、距離関連情報及びQoS関連情報に基づいて、上記1つ以上の選択可能な候補を決定してもよい。
なお、一例として、上記距離関連情報(即ち、プライマリチャネルと個々の利用可能チャネルとの周波数方向の距離に関する情報)は、例えば、プライマリチャネルの中心周波数と個々の利用可能チャネルの中心周波数との周波数方向の距離である。この場合に、例えば、プライマリチャネルの中心周波数は、GLDB50から提供される制御情報の中に含まれ、個々の利用可能チャネルの中心周波数は、利用可能チャネル関連情報の中に含まれる。
チャネル割当部135は、対象無線通信に周波数チャネルを割り当てる。
また、対象無線通信は、1つ以上の周波数チャネルで行われる。そして、当該1つ以上の周波数チャネルは、干渉信号が送信される干渉周波数チャネルから周波数方向において距離D4以上離れた周波数チャネルを含む。
なお、複数のマスタWSD200がある場合には、チャネル割当部135は、各マスタWSD200に、同一の利用可能チャネルを割り当ててもよく、又は別の利用可能チャネルを割り当ててもよい。一例として、チャネル割当部135は、各マスタWSD200の位置に応じて、当該位置におけるプライマリチャネルからの影響を考慮して、利用可能チャネルを割り当ててもよい。
コンフィギュレーション選択部137は、TDDコンフィギュレーションの複数の候補のうちの、対象無線通信のためのTDDコンフィギュレーションを選択する。
例えば、コンフィギュレーション選択部137は、対象無線通信が2つ以上の周波数チャネルにおいて行われる場合に、当該2つ以上の周波数チャネルに含まれる個々の周波数チャネルごとに、上記複数の候補のうちの、上記個々の周波数チャネルにおける無線通信のためのTDDコンフィギュレーションを選択する。
---選択可能候補からの選択
例えば、コンフィギュレーション選択部137は、上記複数の候補のうちの1つ以上の選択可能候補の中から、上記個々の周波数チャネルにおける無線通信のためのTDDコンフィギュレーションを選択する。
----第1の例
第1の例として、対象無線通信が行われる上記2つ以上の周波数チャネルは、干渉信号が送信される干渉周波数チャネルにより近い第1の周波数チャネルと、上記干渉周波数チャネルからより離れた第2の周波数チャネルとを含む。そして、コンフィギュレーション選択部137は、上記第1の周波数チャネルにおける無線通信のためのTDDコンフィギュレーションとして、ダウンリンクサブフレームの数が第1の数である第1のTDDコンフィギュレーションを選択する。また、コンフィギュレーション選択部137は、上記第2の周波数チャネルにおける無線通信のためのTDDコンフィギュレーションとして、ダウンリンクサブフレームの数が上記第1の数よりも小さい第2の数である第2のリンク方向コンフィギュレーションを選択する。
第2の例として、コンフィギュレーション選択部137は、干渉周波数チャネルと上記個々の周波数チャネルとの周波数方向の距離が距離D3よりも小さい場合に、当該個々の周波数チャネルにおける無線通信のためのTDDコンフィギュレーションとして、ダウンリンク専用のTDDコンフィギュレーションを選択する。
例えば、コンフィギュレーション選択部137は、対象無線通信が1つの周波数チャネルにおいて行われる場合に、上記複数の候補のうちの、上記1つの周波数チャネルにおける無線通信のためのTDDコンフィギュレーションを選択する。
上述したように、例えば、対象無線通信は、1つ以上の周波数チャネルで行われ、当該1つ以上の周波数チャネルは、干渉信号が送信される干渉周波数チャネルから周波数方向において距離D4以上離れた周波数チャネルを含む。そして、コンフィギュレーション選択部137は、対象無線通信が所定の種類の無線通信である場合に、アップリンクサブフレームの数が所定の数よりも大きいTDDコンフィギュレーションを、上記干渉チャネルから距離D4以上離れた周波数チャネルのためのTDDコンフィギュレーションとして選択する。例えば、上記所定の種類の無線通信は、機器間(Machine to Machine)通信である。
コンフィギュレーション適用部139は、選択されるTDDコンフィギュレーションを対象無線通信に適用する。
例えば、対象無線通信が、2つ以上の周波数チャネルで行われる。この場合に、コンフィギュレーション適用部139は、当該2つ以上の周波数チャネルに含まれる個々の周波数チャネルごとに選択されるTDDコンフィギュレーションを、当該個々の周波数チャネルにおける無線通信に適用する。
例えば、コンフィギュレーション適用部139は、選択されたTDDコンフィギュレーションをマスタWSD200に設定させることにより、選択された当該TDDコンフィギュレーションを対象無線通信(例えば、セカンダリシステムの無線通信)に適用する。
次に、図12を参照して、本実施形態に係るマスタWSD200の構成の一例を説明する。図12は、本実施形態に係るマスタWSD200の構成の一例を示すブロック図である。図12を参照すると、マスタWSD200は、アンテナ部210、無線通信部220、ネットワーク通信部230、記憶部240及び制御部250を備える。
アンテナ部210は、無線信号を受信し、受信された無線信号を無線通信部220へ出力する。また、アンテナ部210は、無線通信部220により出力された送信信号を送信する。
無線通信部220は、スレーブWSD300がマスタWSD200の通信範囲内に位置する場合に、スレーブWSD300との無線通信を行う。
ネットワーク通信部230は、他の通信ノードと通信する。例えば、ネットワーク通信部230は、AGLE100と通信する。
記憶部240は、マスタWSD200の動作のためのプログラム及びデータを記憶する。
制御部250は、マスタWSD200の様々な機能を提供する。制御部250は、情報取得部251、コンフィギュレーション選択部253、コンフィギュレーション適用部255及び通信制御部257を含む。
情報取得部251は、対象無線通信のために必要な情報を取得する。
コンフィギュレーション選択部253は、TDDコンフィギュレーションの複数の候補のうちの、対象無線通信のためのTDDコンフィギュレーションを選択する。
例えば、コンフィギュレーション選択部253は、AGLE100から提供されるTDDコンフィギュレーションの選択結果に基づいて、TDDコンフィギュレーションを選択する。
コンフィギュレーション適用部255は、選択されるTDDコンフィギュレーションを対象無線通信に適用する。
例えば、対象無線通信が、2つ以上の周波数チャネルで行われる。この場合に、コンフィギュレーション適用部255は、当該2つ以上の周波数チャネルに含まれる個々の周波数チャネルごとに選択されるTDDコンフィギュレーションを、当該個々の周波数チャネルにおける無線通信に適用する。
例えば、コンフィギュレーション適用部255は、選択されたTDDコンフィギュレーションをマスタWSD200において設定することにより、選択された当該TDDコンフィギュレーションを対象無線通信(例えば、セカンダリシステムの無線通信)に適用する。また、コンフィギュレーション適用部255は、無線通信部220を介して、スレーブWSD300に、設定されるTDDコンフィギュレーションを通知する。
通信制御部257は、時分割複信(TDD)方式に従った無線通信を制御する。例えば、当該無線通信は、プライマリシステムのための周波数チャネルを二次的に利用するセカンダリシステムの無線通信である。
次に、図13を参照して、本実施形態に係るスレーブWSD300の構成の一例を説明する。図13は、本実施形態に係るスレーブWSD300の構成の一例を示すブロック図である。図13を参照すると、スレーブWSD300は、アンテナ部310、無線通信部320、記憶部330及び制御部340を備える。
アンテナ部310は、無線信号を受信し、受信された無線信号を無線通信部320へ出力する。また、アンテナ部310は、無線通信部320により出力された送信信号を送信する。
無線通信部320は、スレーブWSD300がマスタWSD200の通信範囲内に位置する場合に、マスタWSD200との無線通信を行う。
記憶部330は、スレーブWSD300の動作のためのプログラム及びデータを記憶する。
制御部340は、スレーブWSD300の様々な機能を提供する。制御部340は、情報取得部341、コンフィギュレーション認識部343及び通信制御部345を含む。
情報取得部341は、対象無線通信のために必要な情報を取得する。
コンフィギュレーション認識部343は、TDDコンフィギュレーションの複数の候補のうちの、対象無線通信に適用されるTDDコンフィギュレーションを認識する。
通信制御部345は、時分割複信(TDD)方式に従った無線通信を制御する。例えば、当該無線通信は、プライマリシステムのための周波数チャネルを二次的に利用するセカンダリシステムの無線通信である。
続いて図14を参照して、本実施形態に係る通信制御処理の一例を説明する。図14は、本実施形態に係る通信制御処理の概略的な流れの一例を示すシーケンス図である。
続いて、本実施形態の第1~第4の変形例を説明する。
上述した本実施形態の例では、AGLE100が、選択可能候補の決定、利用可能チャネルの割当て、及びTDDコンフィギュレーションの選択を行う。一方、本実施形態の第1の変形例では、選択可能候補の決定、利用可能チャネルの割当て、及びTDDコンフィギュレーションの選択を、GLDB50が行う。即ち、第1の変形例では、AGLE100のうちの選択可能候補決定部133、チャネル割当て部135、コンフィギュレーション選択部137の機能は、AGLE100ではなく、GLDB50に備えられる。以下、図15を参照して、このような第1の変形例に係る通信制御処理の一例を説明する。
上述した本実施形態の例では、AGLE100が、TDDコンフィギュレーションの選択を行う。一方、本実施形態の第2の変形例では、TDDコンフィギュレーションの選択を、マクロWSD200が行う。即ち、第2の変形例では、AGLE100のうちのコンフィギュレーション選択部137の機能は、AGLE100ではなく、マスタWSD200に備えられる。以下、図16を参照して、このような第2の変形例に係る通信制御処理の一例を説明する。
上述した本実施形態の例では、1つの国に対応する1つのGLDB50の管理下におけるプライマリシステムからセカンダリシステムへの干渉の抑制又は回避の手法を説明した。しかし、国の境界付近にセカンダリシステム(例えば、マスタWSD200)が位置する場合には、当該セカンダリシステムは、他国におけるプライマリシステムから影響を受ける可能性がある。即ち、ある国のセカンダリシステムにおいて、別の国のプライマリシステムからの干渉が生じる可能性がある。
まず、図17を参照して、第3の実施形態の前提となる各装置の配置例を説明する。図17は、第3の実施形態の前提となる各装置の配置の一例を説明するための説明図である。図17を参照すると、A国とB国との間の境界60が示されている。境界60は、必ずしも国境に一致していなくてもよく、周波数帯域の管理の観点から柔軟に設定されてよい。また、第3の変形例は、国の境界のみならず、共同体、州又は県などを含み得る地域の境界における二次利用の制御に広く適用可能である。
次に、図18A及び図18Bを参照して、本実施形態の第3の変形例に係る通信制御処理の一例を説明する。図18A及び図18Bは、本実施形態の第3の変形例に係る通信制御処理の概略的な流れの一例を示すシーケンス図である。
上述した例では、CRMは、AGLE100に配置される。しかし、第3の実施形態に係るCRMの配置はこの例に限定されない。以下、この点について、図19及び図20を参照して具体例を説明する。
ここまで、主にTVホワイトスペースの文脈での実施形態について説明した。しかしながら、本実施形態に係る技術は、かかる例に限定されない。
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、AGLE100及びGLDB50の各々は、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、AGLE100及びGLDB50の各々は、サーバに搭載される制御モジュール(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)であってもよい。
図21は、本開示に係る技術が適用され得るサーバ750の概略的な構成の一例を示すブロック図である。サーバ750は、プロセッサ751、メモリ752、ストレージ753、ネットワークインタフェース754及びバス756を備える。
(第1の応用例)
図22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23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24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906、センサ907、マイクロフォン908、入力デバイス909、表示デバイス910、スピーカ911、無線通信インタフェース912、1つ以上のアンテナスイッチ915、1つ以上のアンテナ916、バス917、バッテリー918及び補助コントローラ919を備える。
図25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920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920は、プロセッサ921、メモリ922、GPS(Global Positioning System)モジュール924、センサ925、データインタフェース926、コンテンツプレーヤ927、記憶媒体インタフェース928、入力デバイス929、表示デバイス930、スピーカ931、無線通信インタフェース933、1つ以上のアンテナスイッチ936、1つ以上のアンテナ937及びバッテリー938を備える。
ここまで、図1~図20を用いて、本開示の実施形態に係る通信装置及び各処理を説明した。本開示に係る実施形態によれば、
TDDコンフィギュレーションの複数の候補のうちの、無線通信のためのTDDコンフィギュレーションが選択される。そして、選択されるTDDコンフィギュレーションが無線通信に適用される。また、上記複数の候補は、ダウンリンク専用のTDDコンフィギュレーション及びアップリンク専用のTDDコンフィギュレーションのうちの少なくとも一方を含む。
(1)
時分割複信(TDD)方式に従った無線通信を制御する通信制御装置であって、
複数のサブフレームを含む無線フレームにおけるサブフレーム単位でのリンク方向を表すリンク方向コンフィギュレーションの複数の候補のうちの、前記無線通信のためのリンク方向コンフィギュレーションを選択する選択部と、
選択される前記リンク方向コンフィギュレーションを前記無線通信に適用する適用部と、
を備え、
前記複数の候補は、ダウンリンク専用のリンク方向コンフィギュレーション、及びアップリンク専用のリンク方向コンフィギュレーションのうちの、少なくとも一方を含む、
通信制御装置。
(2)
前記複数の候補は、前記ダウンリンク専用のリンク方向コンフィギュレーションを含む、前記(1)に記載の通信制御装置。
(3)
前記複数の候補は、前記アップリンク専用のリンク方向コンフィギュレーションを含む、前記(1)又は(2)に記載の通信制御装置。
(4)
前記アップリンク専用のリンク方向コンフィギュレーションは、前記複数のサブフレームのうちの最初のサブフレームの一部又は全体でアップリンク送信が行われないリンク方向コンフィギュレーションを含む、前記(3)に記載の通信制御装置。
(5)
前記選択部は、前記無線通信が2つ以上の周波数チャネルにおいて行われる場合に、当該2つ以上の周波数チャネルに含まれる個々の周波数チャネルごとに、前記複数の候補のうちの、前記個々の周波数チャネルにおける無線通信のためのリンク方向コンフィギュレーションを選択し、
前記適用部は、前記個々の周波数チャネルごとに選択される前記リンク方向コンフィギュレーションを、当該個々の周波数チャネルにおける無線通信に適用する、
前記(1)~(4)のいずれか1項に記載の通信制御装置。
(6)
前記選択部は、前記複数の候補のうちの1つ以上の選択可能な候補の中から、前記個々の周波数チャネルにおける無線通信のためのリンク方向コンフィギュレーションを選択し、
前記1つ以上の選択可能な候補は、干渉信号が送信される干渉周波数チャネルと前記個々の周波数チャネルとの周波数方向の距離に関する情報に基づいて決定される、
前記(5)に記載の通信制御装置。
(7)
前記1つ以上の選択可能な候補は、前記無線通信に要求されるサービス品質に関する情報にさらに基づいて決定される、前記(6)に記載の通信制御装置。
(8)
前記1つ以上の選択可能な候補は、前記干渉周波数チャネルと前記個々の周波数チャネルとの前記距離が第1の距離よりも小さい場合に、前記ダウンリンク専用のリンク方向コンフィギュレーションである、前記(6)又は(7)に記載の通信制御装置。
(9)
前記1つ以上の選択可能な候補は、前記干渉周波数チャネルと前記個々の周波数チャネルとの前記距離が第2の距離よりも大きい場合に、前記アップリンク専用のリンク方向コンフィギュレーションを含む、前記(6)~(8)のいずれか1項に記載の通信制御装置。
(10)
前記1つ以上の選択可能な候補は、前記干渉周波数チャネルと前記個々の周波数チャネルとの前記距離がより大きい場合に、アップリンクサブフレームの数がより大きいリンク方向コンフィギュレーションを含む、前記(6)~(9)のいずれか1項に記載の通信制御装置。
(11)
前記2つ以上の周波数チャネルは、干渉信号が送信される干渉周波数チャネルにより近い第1の周波数チャネルと、前記干渉周波数チャネルからより離れた第2の周波数チャネルとを含み、
前記選択部は、前記第1の周波数チャネルにおける無線通信のためのリンク方向コンフィギュレーションとして、ダウンリンクサブフレームの数が第1の数である第1のリンク方向コンフィギュレーションを選択し、前記第2の周波数チャネルにおける無線通信のためのリンク方向コンフィギュレーションとして、ダウンリンクサブフレームの数が前記第1の数よりも小さい第2の数である第2のリンク方向コンフィギュレーションを選択する、
前記(5)~(10)のいずれか1項に記載の通信制御装置。
(12)
前記選択部は、干渉信号が送信される干渉周波数チャネルと前記個々の周波数チャネルとの周波数方向の距離が第3の距離よりも小さい場合に、当該個々の周波数チャネルにおける無線通信のためのリンク方向コンフィギュレーションとして、前記ダウンリンク専用のリンク方向コンフィギュレーションを選択する、前記(5)~(11)のいずれか1項に記載の通信制御装置。
(13)
前記無線通信は、1つ以上の周波数チャネルにおいて行われ、
前記1つ以上の周波数チャネルは、干渉信号が送信される干渉周波数チャネルから周波数方向において第4の距離以上離れた周波数チャネルを含む、
前記(1)~(12)のいずれか1項に記載の通信制御装置。
(14)
前記選択部は、前記無線通信が所定の種類の無線通信である場合に、アップリンクサブフレームの数が所定の数よりも大きいリンク方向コンフィギュレーションを、前記干渉周波数チャネルから前記第4の距離以上離れた前記周波数チャネルのためのリンク方向コンフィギュレーションとして選択する、
前記(13)に記載の通信制御装置。
(15)
前記所定の種類の無線通信は、機器間(Machine to Machine)通信である、前記(14)に記載の通信制御装置。
(16)
前記無線通信は、プライマリシステムのための周波数チャネルを二次的に利用するセカンダリシステムの無線通信であり、
前記干渉周波数チャネルは、前記セカンダリシステムと異なる別の無線通信システムにおいて用いられる周波数チャネルである、
前記(6)~(15)のいずれか1項に記載の通信制御装置。
(17)
前記無線通信は、マクロセルと一部又は全体で重なるスモールセルにおける無線通信であり、
前記干渉周波数チャネルは、前記マクロセルにおいて用いられる周波数チャネルである、
前記(6)~(15)のいずれか1項に記載の通信制御装置。
(18)
時分割複信(TDD)方式に従った無線通信を制御する通信制御方法であって、
複数のサブフレームを含む無線フレームにおけるサブフレーム単位でのリンク方向を表すリンク方向コンフィギュレーションの複数の候補のうちの、前記無線通信のためのリンク方向コンフィギュレーションを選択することと、
選択される前記リンク方向コンフィギュレーションを前記無線通信に適用することと、
を含み、
前記複数の候補は、ダウンリンク専用のリンク方向コンフィギュレーション、及びアップリンク専用のリンク方向コンフィギュレーションのうちの、少なくとも一方を含む、
通信制御方法。
(19)
時分割複信(TDD)方式に従った無線通信が行われる周波数チャネルを認識する認識部と、
前記無線通信が2つ以上の周波数チャネルにおいて行われる場合に、当該2つ以上の周波数チャネルに含まれる個々の周波数チャネルごとに、干渉信号が送信される干渉周波数チャネルと当該個々の周波数チャネルとの周波数方向の距離に関する情報に基づいて、複数のサブフレームを含む無線フレームにおけるサブフレーム単位でのリンク方向を表すリンク方向コンフィギュレーションの複数の候補のうちの、前記個々の周波数チャネルにおける無線通信に適用するために選択可能な1つ以上の候補を決定する決定部と、
を備え、
前記複数の候補は、ダウンリンク専用のリンク方向コンフィギュレーション、及びアップリンク専用のリンク方向コンフィギュレーションのうちの、少なくとも一方を含む、
通信制御装置。
(20)
時分割複信(TDD)方式に従った無線通信を制御する通信装置であって、
複数のサブフレームを含む無線フレームにおけるサブフレーム単位でのリンク方向を表すリンク方向コンフィギュレーションの複数の候補のうちの、前記無線通信に適用されるリンク方向コンフィギュレーションを認識する認識部と、
認識される前記リンク方向コンフィギュレーションに従って前記無線通信を制御する通信制御部と、
を備え、
前記複数の候補は、ダウンリンク専用のリンク方向コンフィギュレーション、及びアップリンク専用のリンク方向コンフィギュレーションのうちの、少なくとも一方を含む、
通信装置。
60 境界
100 AGLE(Advanced Geo-Location Engine)
132 チャネル認識部
133 選択可能候補決定部
137 コンフィギュレーション選択部
139 コンフィギュレーション適用部
200 マスタWSD(White Space Devices)
253 コンフィギュレーション選択部
255 コンフィギュレーション適用部
300 スレーブWSD(White Space Devices)
343 コンフィギュレーション認識部
345 通信制御部
Claims (20)
- 時分割複信(TDD)方式に従った無線通信を制御する通信制御装置であって、
複数のサブフレームを含む無線フレームにおけるサブフレーム単位でのリンク方向を表すリンク方向コンフィギュレーションの複数の候補のうちの、前記無線通信のためのリンク方向コンフィギュレーションを選択する選択部と、
選択される前記リンク方向コンフィギュレーションを前記無線通信に適用する適用部と、
を備え、
前記複数の候補は、ダウンリンク専用のリンク方向コンフィギュレーション、及びアップリンク専用のリンク方向コンフィギュレーションのうちの、少なくとも一方を含む、
通信制御装置。 - 前記複数の候補は、前記ダウンリンク専用のリンク方向コンフィギュレーションを含む、請求項1に記載の通信制御装置。
- 前記複数の候補は、前記アップリンク専用のリンク方向コンフィギュレーションを含む、請求項1に記載の通信制御装置。
- 前記アップリンク専用のリンク方向コンフィギュレーションは、前記複数のサブフレームのうちの最初のサブフレームの一部又は全体でアップリンク送信が行われないリンク方向コンフィギュレーションを含む、請求項3に記載の通信制御装置。
- 前記選択部は、前記無線通信が2つ以上の周波数チャネルにおいて行われる場合に、当該2つ以上の周波数チャネルに含まれる個々の周波数チャネルごとに、前記複数の候補のうちの、前記個々の周波数チャネルにおける無線通信のためのリンク方向コンフィギュレーションを選択し、
前記適用部は、前記個々の周波数チャネルごとに選択される前記リンク方向コンフィギュレーションを、当該個々の周波数チャネルにおける無線通信に適用する、
請求項1に記載の通信制御装置。 - 前記選択部は、前記複数の候補のうちの1つ以上の選択可能な候補の中から、前記個々の周波数チャネルにおける無線通信のためのリンク方向コンフィギュレーションを選択し、
前記1つ以上の選択可能な候補は、干渉信号が送信される干渉周波数チャネルと前記個々の周波数チャネルとの周波数方向の距離に関する情報に基づいて決定される、
請求項5に記載の通信制御装置。 - 前記1つ以上の選択可能な候補は、前記無線通信に要求されるサービス品質に関する情報にさらに基づいて決定される、請求項6に記載の通信制御装置。
- 前記1つ以上の選択可能な候補は、前記干渉周波数チャネルと前記個々の周波数チャネルとの前記距離が第1の距離よりも小さい場合に、前記ダウンリンク専用のリンク方向コンフィギュレーションである、請求項6に記載の通信制御装置。
- 前記1つ以上の選択可能な候補は、前記干渉周波数チャネルと前記個々の周波数チャネルとの前記距離が第2の距離よりも大きい場合に、前記アップリンク専用のリンク方向コンフィギュレーションを含む、請求項6に記載の通信制御装置。
- 前記1つ以上の選択可能な候補は、前記干渉周波数チャネルと前記個々の周波数チャネルとの前記距離がより大きい場合に、アップリンクサブフレームの数がより大きいリンク方向コンフィギュレーションを含む、請求項6に記載の通信制御装置。
- 前記2つ以上の周波数チャネルは、干渉信号が送信される干渉周波数チャネルにより近い第1の周波数チャネルと、前記干渉周波数チャネルからより離れた第2の周波数チャネルとを含み、
前記選択部は、前記第1の周波数チャネルにおける無線通信のためのリンク方向コンフィギュレーションとして、ダウンリンクサブフレームの数が第1の数である第1のリンク方向コンフィギュレーションを選択し、前記第2の周波数チャネルにおける無線通信のためのリンク方向コンフィギュレーションとして、ダウンリンクサブフレームの数が前記第1の数よりも小さい第2の数である第2のリンク方向コンフィギュレーションを選択する、
請求項5に記載の通信制御装置。 - 前記選択部は、干渉信号が送信される干渉周波数チャネルと前記個々の周波数チャネルとの周波数方向の距離が第3の距離よりも小さい場合に、当該個々の周波数チャネルにおける無線通信のためのリンク方向コンフィギュレーションとして、前記ダウンリンク専用のリンク方向コンフィギュレーションを選択する、請求項5に記載の通信制御装置。
- 前記無線通信は、1つ以上の周波数チャネルにおいて行われ、
前記1つ以上の周波数チャネルは、干渉信号が送信される干渉周波数チャネルから周波数方向において第4の距離以上離れた周波数チャネルを含む、
請求項1に記載の通信制御装置。 - 前記選択部は、前記無線通信が所定の種類の無線通信である場合に、アップリンクサブフレームの数が所定の数よりも大きいリンク方向コンフィギュレーションを、前記干渉周波数チャネルから前記第4の距離以上離れた前記周波数チャネルのためのリンク方向コンフィギュレーションとして選択する、
請求項13に記載の通信制御装置。 - 前記所定の種類の無線通信は、機器間(Machine to Machine)通信である、請求項14に記載の通信制御装置。
- 前記無線通信は、プライマリシステムのための周波数チャネルを二次的に利用するセカンダリシステムの無線通信であり、
前記干渉周波数チャネルは、前記セカンダリシステムと異なる別の無線通信システムにおいて用いられる周波数チャネルである、
請求項6に記載の通信制御装置。 - 前記無線通信は、マクロセルと一部又は全体で重なるスモールセルにおける無線通信であり、
前記干渉周波数チャネルは、前記マクロセルにおいて用いられる周波数チャネルである、
請求項6記載の通信制御装置。 - 時分割複信(TDD)方式に従った無線通信を制御する通信制御方法であって、
複数のサブフレームを含む無線フレームにおけるサブフレーム単位でのリンク方向を表すリンク方向コンフィギュレーションの複数の候補のうちの、前記無線通信のためのリンク方向コンフィギュレーションを選択することと、
選択される前記リンク方向コンフィギュレーションを前記無線通信に適用することと、
を含み、
前記複数の候補は、ダウンリンク専用のリンク方向コンフィギュレーション、及びアップリンク専用のリンク方向コンフィギュレーションのうちの、少なくとも一方を含む、
通信制御方法。 - 時分割複信(TDD)方式に従った無線通信が行われる周波数チャネルを認識する認識部と、
前記無線通信が2つ以上の周波数チャネルにおいて行われる場合に、当該2つ以上の周波数チャネルに含まれる個々の周波数チャネルごとに、干渉信号が送信される干渉周波数チャネルと当該個々の周波数チャネルとの周波数方向の距離に関する情報に基づいて、複数のサブフレームを含む無線フレームにおけるサブフレーム単位でのリンク方向を表すリンク方向コンフィギュレーションの複数の候補のうちの、前記個々の周波数チャネルにおける無線通信に適用するために選択可能な1つ以上の候補を決定する決定部と、
を備え、
前記複数の候補は、ダウンリンク専用のリンク方向コンフィギュレーション、及びアップリンク専用のリンク方向コンフィギュレーションのうちの、少なくとも一方を含む、
通信制御装置。 - 時分割複信(TDD)方式に従った無線通信を制御する通信装置であって、
複数のサブフレームを含む無線フレームにおけるサブフレーム単位でのリンク方向を表すリンク方向コンフィギュレーションの複数の候補のうちの、前記無線通信に適用されるリンク方向コンフィギュレーションを認識する認識部と、
認識される前記リンク方向コンフィギュレーションに従って前記無線通信を制御する通信制御部と、
を備え、
前記複数の候補は、ダウンリンク専用のリンク方向コンフィギュレーション、及びアップリンク専用のリンク方向コンフィギュレーションのうちの、少なくとも一方を含む、
通信装置。
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13876968.2A EP2966891B1 (en) | 2013-03-07 | 2013-12-02 | Communication control device, communication control method, and communication device |
BR112015021089A BR112015021089A2 (pt) | 2013-03-07 | 2013-12-02 | dispositivo e método de controle de comunicação |
US14/758,926 US9642134B2 (en) | 2013-03-07 | 2013-12-02 | Communication control device, communication control method, and communication device |
JP2015504132A JP6187580B2 (ja) | 2013-03-07 | 2013-12-02 | 通信制御装置、通信制御方法及び通信装置 |
RU2015136973A RU2640791C2 (ru) | 2013-03-07 | 2013-12-02 | Устройство управления связью, способ управления связью и устройство связи |
CN201380074098.9A CN105027599B (zh) | 2013-03-07 | 2013-12-02 | 通信控制设备、通信控制方法和通信设备 |
US15/463,967 US10045342B2 (en) | 2013-03-07 | 2017-03-20 | Communication control device, communication control method, and communication device |
US16/053,288 US10772093B2 (en) | 2013-03-07 | 2018-08-02 | Communication control device, communication control method, and communication device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013-045132 | 2013-03-07 | ||
JP2013045132 | 2013-03-07 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/758,926 A-371-Of-International US9642134B2 (en) | 2013-03-07 | 2013-12-02 | Communication control device, communication control method, and communication device |
US15/463,967 Continuation US10045342B2 (en) | 2013-03-07 | 2017-03-20 | Communication control device, communication control method, and communication device |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014136333A1 true WO2014136333A1 (ja) | 2014-09-12 |
Family
ID=51490876
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2013/082397 WO2014136333A1 (ja) | 2013-03-07 | 2013-12-02 | 通信制御装置、通信制御方法及び通信装置 |
Country Status (8)
Country | Link |
---|---|
US (3) | US9642134B2 (ja) |
EP (1) | EP2966891B1 (ja) |
JP (1) | JP6187580B2 (ja) |
CN (1) | CN105027599B (ja) |
BR (1) | BR112015021089A2 (ja) |
RU (1) | RU2640791C2 (ja) |
TW (1) | TWI646813B (ja) |
WO (1) | WO2014136333A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017041749A (ja) * | 2015-08-19 | 2017-02-23 | トヨタ自動車株式会社 | 無線通信方法、無線通信システム、およびプログラム |
WO2018020799A1 (ja) * | 2016-07-27 | 2018-02-01 | ソニー株式会社 | 通信制御装置、無線通信装置、方法及びプログラム |
JP2020529769A (ja) * | 2017-08-01 | 2020-10-08 | クアルコム,インコーポレイテッド | 時分割複信共存構成のための技法および装置 |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160337878A1 (en) * | 2014-01-15 | 2016-11-17 | Nokia Solutions And Networks Oy | Improving network efficiency |
CA2960299A1 (en) * | 2014-09-12 | 2016-03-17 | Siemens Canada Limited | Clock synchronization over redundant networks |
US20180020386A1 (en) * | 2015-01-30 | 2018-01-18 | Nokia Solutions And Networks Oy | Improvements in handovers between different access networks |
US10470104B2 (en) * | 2015-04-20 | 2019-11-05 | Agency For Science, Technology And Research | Method and apparatus for broadcast geo-location database (GLDB) for television white space (TVWS) spectrum access |
US10136427B2 (en) | 2016-08-08 | 2018-11-20 | Corning Optical Communications Wireless Ltd | Partitioning a time-division-based communications link for communicating multiple types of communications signals in a wireless distribution system (WDS) |
US12021796B2 (en) * | 2018-07-10 | 2024-06-25 | Qualcomm Incorporated | Methods for maximum permissible exposure mitigation based on new radio time domain duplex configuration |
US11728958B2 (en) * | 2020-10-13 | 2023-08-15 | Charter Communications Operating, Llc | TDD configuration coordination for networks using adjacent bands |
RU2762386C1 (ru) * | 2021-04-30 | 2021-12-20 | Денис Александрович Давыдов | Способ передачи сигналов между ведущим и ведомыми устройствами |
EP4348884A1 (en) * | 2021-06-01 | 2024-04-10 | Telefonaktiebolaget LM Ericsson (publ) | Method and network node for interference mitigation in a tdd wireless communication network |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010028334A (ja) * | 2008-07-17 | 2010-02-04 | Hitachi Kokusai Electric Inc | 無線通信システム |
WO2012165067A1 (ja) * | 2011-05-30 | 2012-12-06 | ソニー株式会社 | 無線リソース割当方法及び無線リソース割当装置、並びに通信システム |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI114178B (fi) * | 1995-01-09 | 2004-08-31 | Nokia Corp | Radiokapasiteetin dynaaminen jakaminen TDMA-järjestelmässä |
WO2007068207A1 (fr) * | 2005-12-17 | 2007-06-21 | Huawei Technologies Co., Ltd. | Procede, systeme et terminal destines a fournir un signal de rappel en temps reel |
US8917673B2 (en) * | 2006-07-14 | 2014-12-23 | Qualcomm Incorporation | Configurable downlink and uplink channels for improving transmission of data by switching duplex nominal frequency spacing according to conditions |
RU2460241C2 (ru) * | 2007-01-09 | 2012-08-27 | Нтт Досомо, Инк. | Базовая станция, система мобильной связи, мобильная станция и способ управления связью |
US8942150B2 (en) * | 2007-03-19 | 2015-01-27 | Qualcomm Incorporated | Uplink timing control |
KR20110127080A (ko) * | 2010-05-18 | 2011-11-24 | 한국전자통신연구원 | 단말간 직접 연결 통신 및 단말 릴레이를 위한 단말간 직접 데이터 송수신 방법 |
US8873480B2 (en) * | 2010-10-01 | 2014-10-28 | Intel Corporation | Techniques for dynamic spectrum management, allocation, and sharing |
WO2012068224A1 (en) * | 2010-11-16 | 2012-05-24 | Interdigital Patent Holdings, Inc. | Method and apparatus for wireless direct link operation |
CN103493556B (zh) * | 2011-02-21 | 2020-02-14 | 安华高科技股份有限公司 | 用于时分双工的动态上行链路/下行链路配置 |
US8724492B2 (en) * | 2011-04-08 | 2014-05-13 | Motorola Mobility Llc | Method and apparatus for multi-radio coexistence on adjacent frequency bands |
US9351185B2 (en) * | 2011-04-15 | 2016-05-24 | Broadcom Corporation | LTE carrier aggregation configuration on TV white space bands |
US20120294163A1 (en) * | 2011-05-19 | 2012-11-22 | Renesas Mobile Corporation | Apparatus and Method for Direct Device-to-Device Communication in a Mobile Communication System |
JP5688332B2 (ja) * | 2011-06-20 | 2015-03-25 | 株式会社日立国際電気 | 無線通信システム |
US8705556B2 (en) * | 2011-08-15 | 2014-04-22 | Blackberry Limited | Notifying a UL/DL configuration in LTE TDD systems |
CN102958058B (zh) | 2011-08-17 | 2016-07-06 | 上海贝尔股份有限公司 | 在异构网中用于通知动态上下行配置的方法和装置 |
KR102160350B1 (ko) * | 2012-04-30 | 2020-09-28 | 인터디지탈 패튼 홀딩스, 인크 | 협력형 직교 블록 기반 자원 할당(cobra) 동작을 지원하는 방법 및 장치 |
WO2014104960A1 (en) * | 2012-12-27 | 2014-07-03 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for measurement procedures with composite dynamic subframes in dynamic tdd |
CN104969606B (zh) * | 2013-02-06 | 2019-03-05 | 索尼公司 | 通信控制设备、通信控制方法以及终端设备 |
US9414399B2 (en) * | 2013-02-07 | 2016-08-09 | Commscope Technologies Llc | Radio access networks |
EP2816853A1 (en) * | 2013-06-21 | 2014-12-24 | Panasonic Intellectual Property Corporation of America | Uplink switching of communication links for mobile stations in dual connectivity |
US20150163036A1 (en) * | 2013-12-11 | 2015-06-11 | Nokia Solutions And Networks Oy | High Resolution Channel Sounding for FDD Communications |
KR102080982B1 (ko) * | 2015-02-06 | 2020-02-24 | 애플 인크. | 비면허 무선 주파수 대역에서의 시분할 lte 전송을 위한 방법 및 장치 |
US10506444B2 (en) * | 2016-04-29 | 2019-12-10 | Intel Corporation | SAS PAL GAA co-channel interference mitigation |
-
2013
- 2013-12-02 BR BR112015021089A patent/BR112015021089A2/pt not_active Application Discontinuation
- 2013-12-02 RU RU2015136973A patent/RU2640791C2/ru active
- 2013-12-02 EP EP13876968.2A patent/EP2966891B1/en active Active
- 2013-12-02 US US14/758,926 patent/US9642134B2/en active Active
- 2013-12-02 WO PCT/JP2013/082397 patent/WO2014136333A1/ja active Application Filing
- 2013-12-02 JP JP2015504132A patent/JP6187580B2/ja active Active
- 2013-12-02 CN CN201380074098.9A patent/CN105027599B/zh active Active
-
2014
- 2014-02-19 TW TW103105412A patent/TWI646813B/zh active
-
2017
- 2017-03-20 US US15/463,967 patent/US10045342B2/en active Active
-
2018
- 2018-08-02 US US16/053,288 patent/US10772093B2/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010028334A (ja) * | 2008-07-17 | 2010-02-04 | Hitachi Kokusai Electric Inc | 無線通信システム |
WO2012165067A1 (ja) * | 2011-05-30 | 2012-12-06 | ソニー株式会社 | 無線リソース割当方法及び無線リソース割当装置、並びに通信システム |
Non-Patent Citations (4)
Title |
---|
"Complementary Report to ECC Report 159; Further definition of technical and operational requirements for the operation of white space devices in the band 470 to 790 MHz", ECC REPORT 185, September 2012 (2012-09-01) |
"TECHNICAL AND OPERATIONAL REQUIREMENTS FOR THE POSSIBLE OPERATION OF COGNITIVE RADIO SYSTEMS IN THE WHITE SPACES' OF THE FREQUENCY BAND 470 TO 790 MHz", ECC REPORT 159, January 2011 (2011-01-01) |
"TV WHITE SPACE AS PART OF THE FUTURE SPECTRUM LANDSCAPE FOR WIRELESS COMMUNICATIONS", ETSI WORKSHOP ON RECONFIGURABLE RADIO SYSTEMS, 12 December 2012 (2012-12-12) |
See also references of EP2966891A4 |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017041749A (ja) * | 2015-08-19 | 2017-02-23 | トヨタ自動車株式会社 | 無線通信方法、無線通信システム、およびプログラム |
WO2018020799A1 (ja) * | 2016-07-27 | 2018-02-01 | ソニー株式会社 | 通信制御装置、無線通信装置、方法及びプログラム |
JPWO2018020799A1 (ja) * | 2016-07-27 | 2019-05-09 | ソニー株式会社 | 通信制御装置、無線通信装置、方法及びプログラム |
US10993225B2 (en) | 2016-07-27 | 2021-04-27 | Sony Corporation | Communication control device, wireless communication device, method and program |
JP7001054B2 (ja) | 2016-07-27 | 2022-01-19 | ソニーグループ株式会社 | 通信制御装置、無線通信装置、方法及びプログラム |
JP2022043213A (ja) * | 2016-07-27 | 2022-03-15 | ソニーグループ株式会社 | 通信制御装置、無線通信装置、方法及びプログラム |
US11647488B2 (en) | 2016-07-27 | 2023-05-09 | Sony Group Corporation | Communication control device, wireless communication device, method and program |
JP7287449B2 (ja) | 2016-07-27 | 2023-06-06 | ソニーグループ株式会社 | 通信制御装置、無線通信装置、方法及びプログラム |
US12035290B2 (en) | 2016-07-27 | 2024-07-09 | Sony Group Corporation | Communication control device, wireless communication device, method and program |
JP2020529769A (ja) * | 2017-08-01 | 2020-10-08 | クアルコム,インコーポレイテッド | 時分割複信共存構成のための技法および装置 |
Also Published As
Publication number | Publication date |
---|---|
CN105027599A (zh) | 2015-11-04 |
US20170196007A1 (en) | 2017-07-06 |
JPWO2014136333A1 (ja) | 2017-02-09 |
TWI646813B (zh) | 2019-01-01 |
CN105027599B (zh) | 2019-04-30 |
EP2966891A4 (en) | 2017-01-18 |
RU2015136973A (ru) | 2017-03-10 |
US20180343655A1 (en) | 2018-11-29 |
RU2640791C2 (ru) | 2018-01-12 |
EP2966891B1 (en) | 2020-07-29 |
US20150358963A1 (en) | 2015-12-10 |
US9642134B2 (en) | 2017-05-02 |
EP2966891A1 (en) | 2016-01-13 |
TW201438444A (zh) | 2014-10-01 |
BR112015021089A2 (pt) | 2017-07-18 |
US10772093B2 (en) | 2020-09-08 |
JP6187580B2 (ja) | 2017-08-30 |
US10045342B2 (en) | 2018-08-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10772093B2 (en) | Communication control device, communication control method, and communication device | |
JP6406242B2 (ja) | 通信制御装置、通信制御方法及び無線通信装置 | |
US20210258957A1 (en) | Electronic device, user equipment and wireless communication method in wireless communication system | |
US20220182847A1 (en) | Base station device, communication method and storage medium | |
JPWO2019003555A1 (ja) | 制御装置、基地局、端末装置、方法及び記録媒体 | |
US20190260562A1 (en) | Apparatus for communicating using a frequency band with priority | |
JP2019071694A (ja) | 装置 | |
WO2021179976A1 (zh) | 电子设备、无线通信方法和计算机可读存储介质 | |
CN109804653A (zh) | 频谱管理装置、电子设备以及由其执行的方法 | |
US10028256B2 (en) | Apparatus |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201380074098.9 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 13876968 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2015504132 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14758926 Country of ref document: US |
|
ENP | Entry into the national phase |
Ref document number: 2015136973 Country of ref document: RU Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2013876968 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112015021089 Country of ref document: BR |
|
ENP | Entry into the national phase |
Ref document number: 112015021089 Country of ref document: BR Kind code of ref document: A2 Effective date: 20150831 |