WO2022123738A1 - 無線装置、制御回路、および記憶媒体 - Google Patents
無線装置、制御回路、および記憶媒体 Download PDFInfo
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- WO2022123738A1 WO2022123738A1 PCT/JP2020/046105 JP2020046105W WO2022123738A1 WO 2022123738 A1 WO2022123738 A1 WO 2022123738A1 JP 2020046105 W JP2020046105 W JP 2020046105W WO 2022123738 A1 WO2022123738 A1 WO 2022123738A1
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- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 238000004891 communication Methods 0.000 claims description 24
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- 238000010586 diagram Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000001360 synchronised effect Effects 0.000 description 4
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
- H04W56/0015—Synchronization between nodes one node acting as a reference for the others
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/16—Interfaces between hierarchically similar devices
- H04W92/18—Interfaces between hierarchically similar devices between terminal devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
- H04W84/20—Master-slave selection or change arrangements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Definitions
- the present disclosure relates to a wireless device, a control circuit, and a storage medium for performing wireless communication.
- a 5th generation wireless access system also called a 5G wireless access system
- the system capacity is 1000 times
- the data transmission speed is 100 times
- the data processing delay is 1/10
- the number of simultaneous connections of communication terminals is 100 times that of the LTE (Long Term Evolution) system. It has become.
- LTE Long Term Evolution
- the C-V2V Vehicle to Vehicle
- 5G / LTE 5G / LTE
- Patent Document 2 the C-V2V (Vehicle to Vehicle) function, which is a vehicle-to-vehicle communication standard using 5G / LTE as shown in Non-Patent Document 1, is shown, and more detailed technical contents are not included. It is described in Patent Document 2.
- Non-Patent Document 1 describes Side Link, which is a local network in vehicle-to-vehicle communication, and UE (User Equipment) group, which shows a network configuration of vehicle-to-vehicle communication.
- Non-Patent Document 1 discloses that a vehicle that controls within the UE group is referred to as a Head UE, and a vehicle that receives control from the Head UE is referred to as a Member UE.
- the vehicle radio technology to which Non-Patent Document 1 and Non-Patent Document 2 are applied is a technology that can be applied not only to automobiles but also to automatic guided vehicles and robots such as AGVs (Automated Guided Vehicles).
- AGVs Automatic Guided Vehicles
- the vehicle radio to which Non-Patent Document 1 and Non-Patent Document 2 are applied transmits PSBCH (Physical Side link Broadcast Control Channel) having a cycle of 160 ms, and transmits SLSS (Side Link Synchronization Function) which is a synchronization signal. There is.
- PSBCH Physical Side link Broadcast Control Channel
- SLSS Segment Link Synchronization Function
- the vehicle radio that can transmit the SLSS which is the above-mentioned synchronization signal, is determined by the configuration of the vehicle radio.
- priorities are set according to the synchronization accuracy level, and it can be set so that Head UEs can be set in descending order of priority (higher level 1). be.
- Non-Patent Document 1 when the vehicle radios in the communicable range have the same order, it is possible to follow different synchronization sources, and in Non-Patent Document 1, one UE belongs to up to three different UE groups at the same time. It has been shown that it is possible.
- Level 1 is a terminal connected to and synchronized with a base station or GPS.
- Level 2 is a terminal connected to and synchronized with Level 1.
- Level 3 is a terminal connected to and synchronized with Level 2.
- Level 4 is a terminal synchronized by other methods.
- Level 5 is a terminal that operates with the internal clock of the radio. That is, the Level 5 radio is a radio that travels outside the communication range (outside the communication area) from the base station and does not have a function of receiving GPS (Global Positioning System), or cannot receive GPS or has low GPS accuracy. It is a radio that operates at the location. In the following description, being out of the communication range from the base station is simply referred to as out of range.
- a dedicated Head UE In order to enable communication between vehicle radios even with the C-V2V function in a non-line-of-sight environment, a dedicated Head UE is fixedly installed in a bent passage or intersection, and vehicle radios that have become a non-line-of-sight environment. Is a member UE of a dedicated Head UE that is fixedly installed, so that communication may be possible via the dedicated Head UE. As a result, vehicle radios in a non-line-of-sight environment can obtain information on the other party via a dedicated Head UE, and can perform collision avoidance and alternate traffic.
- the present disclosure has been made in view of the above, and obtains a wireless device capable of avoiding collisions and alternating traffic of wireless communication terminals in a place where a non-line-of-sight environment may occur while suppressing an increase in wireless devices.
- the purpose is to avoid collisions and alternating traffic of wireless communication terminals in a place where a non-line-of-sight environment may occur while suppressing an increase in wireless devices.
- the present disclosure relates to a control-side wireless device that controls other wireless devices belonging to a group in a group to which a plurality of wireless devices communicating using a synchronization signal belong. It is a wireless device that can operate by switching between the function and the function of the controlled wireless device controlled by the controlled wireless device.
- the wireless device is a transmission unit capable of transmitting a signal, a receiving unit capable of receiving a signal, and a synchronization signal from a wireless device of another group that does not belong to the group when operating as a controlled wireless device.
- the control unit includes a control unit that transmits information about the detected synchronization signal to the control side wireless device from the transmitting unit.
- the wireless device has the effect of suppressing the increase in the number of wireless devices and enabling collision avoidance and alternate traffic of wireless communication terminals in places where a non-line-of-sight environment may occur.
- a block diagram showing a configuration of a wireless device according to the first embodiment of the present disclosure The figure which shows the state which a plurality of UEs concerning Embodiment 1 are traveling in a passage. The figure which shows the state which the head UE was switched from the state shown in FIG. The operation sequence diagram when the Head UE is switched in the first embodiment. The figure which shows the state which the UE which is a plurality of wireless devices which concerns on a comparative example is traveling in a passage. Operation sequence diagram in the comparative example The figure which shows the state which the UE shown in FIG. 5 became the line-of-sight environment. The figure which shows the structure of the system which concerns on Embodiment 1.
- FIG. 1 is a block diagram showing a configuration of a wireless device according to the first embodiment of the present disclosure.
- the wireless device 1 which is a communication terminal device includes an antenna 1101, a frequency conversion unit 1102, a demodulation unit 1103, a decoder unit 1104, a protocol processing unit 1105, an application unit 1106, a control unit 1107, and a transmission data buffer unit. It includes a 1108, an encoder unit 1109, and a modulation unit 1110.
- the operation of each element when receiving a signal with the antenna 1101 will be described.
- the signal received by the antenna 1101 is dropped into the baseband by the frequency conversion unit 1102.
- the signal dropped in the baseband is demodulated by the demodulation unit 1103 and decoded by the decoder unit 1104.
- the decoded signal is passed to the protocol processing unit 1105 or the application unit 1106.
- the signal passed from the application unit 1106 or the protocol processing unit 1105 is temporarily stored in the transmission data buffer unit 1108.
- the data once stored in the transmission data buffer unit 1108 is transmitted to the encoder unit 1109.
- the signal sent from the transmission data buffer unit 1108 is encoded by the encoder unit 1109 and modulated by the modulation unit 1110.
- the modulated signal is converted into an RF (Radio Frequency) frequency by the frequency conversion unit 1102, and is emitted from the antenna 1101 into space.
- the control unit 1107 controls the operation of receiving the above-mentioned signal and transmitting the signal.
- the wireless device 1 is provided with a traveling means such as a tire and a driving device for driving the tire, and autonomous traveling is possible.
- a traveling means such as a tire and a driving device for driving the tire, and autonomous traveling is possible.
- the wireless device 1 is also referred to as a UE.
- FIG. 2 is a diagram showing a state in which a UE, which is a plurality of wireless devices according to the first embodiment, is traveling in a passage.
- the plurality of UEs 401, 403 and 404 can form a UE group which is a local network in which UEs 401, 403 and 404 communicate with each other by the C-V2V function which is an inter-vehicle communication standard using 5G / LTE.
- a UE that controls another UE is called a Head UE.
- the Head UE operates as a control side wireless device.
- the UE controlled by the Head UE is called a Member UE.
- the Member UE operates as a controlled wireless device.
- a plurality of UEs 401, 403, and 404 are traveling near the corner of the passage. There is no wall 2 that becomes an obstacle between the UE 403 and the UE 404, and the UE 403 and the UE 404 communicate with each other using the Side Link 406 to form the UE group 405.
- the UE 404 is a Head UE
- the UE 403 is a Member UE.
- the UE group 405 is running in a platoon so that the UE 403, which is a member UE, is at the head, and the UE 404, which is a head UE, follows the UE 403. That is, the UE group 405 is traveling in the direction of the UE 401 with the UE 403, which is a member UE, at the head.
- SLSS is transmitted using C-Plane.
- the UE 401 does not belong to any UE group, and only one UE 401 is traveling in the direction of the UE 403 which is a member UE.
- UEs travel on curved passages and intersections, in order to avoid collisions between UEs and perform alternate traffic, UEs communicate with each other via Side Link to form a UE group, and UEs in the UE group communicate with each other. It is necessary to share various information such as location information and traveling direction information.
- UE 404 and UE 401 which are Head UEs, are in a non-line-of-sight environment, UE 401 cannot belong to UE group 405 until UE 404 and UE 401 are in a line-of-sight environment.
- the Head UE is switched in order to avoid a collision.
- FIG. 3 is a diagram showing a state in which the Head UE has been switched from the state shown in FIG.
- FIG. 4 is an operation sequence diagram when the Head UE is switched in the first embodiment. Since the UE 401 does not belong to any UE group, it periodically transmits SLSS402 and searches for a UE that can be a member UE in the UE group whose head UE is itself. Note that Side Link, which is standardized by 3GPP, is a method of communication between terminals, and is, for example, an interface called PC5.
- a UE group 405 in which the UE 404 is a Head UE and the UE 403 is a Member UE is formed (ST500).
- the UE 401 outside the UE group 405 periodically transmits the SLSS 402 (ST501, ST503).
- the UEs 403 and 404 belonging to UE group 405 are periodically performing frequency search (ST502).
- the frequency search refers to searching for a signal transmitted at a frequency other than the frequency of the signal used for communication in the UE group 405.
- the SLSS402 (ST501) that reached the UE 403 before the frequency search (ST502) is not received by the UE 403.
- the SLSS402 (ST503) that reaches the UE 403 after the frequency search (ST502) is received and detected by the UE 403 (ST504).
- UE 403 Since UE 403 already belongs to UE group 405, it does not try to form a UE group with UE 401. The UE 403 does not try to form a UE group with the UE 401, but notifies the detected SLSS 402 information, the arrival direction of the SLSS 402, and the reception strength to the UE 404, which is a head UE, through the U-Plane (ST505).
- the software of UE404 which is a head UE, has one or more member UEs notify the above-mentioned SLSS402 information, the arrival direction and reception strength of SLSS402 by U-Plane (ST506), and the UE401 exists in which direction.
- the UE 404 is provided with a function of determining whether or not to do so.
- the Head UE 404 knows in advance because the relative position of the Member UE belonging to the UE group 405 can be detected from the TA (Timing Advance), and the SLSS 402 is determined from the SLSS arrival direction, the reception strength, and the relative position of the Member UE.
- a member UE that can make the transmitting UE 401 and the member UE belonging to the UE group 405 belong to the same UE group is selected, and the member UE is selected as the new head UE (ST507).
- the new Head UE all Member UEs and UEs that have a prospect environment at that time are selected.
- the Head UE 404 does not perform the process of selecting a new Head UE (ST507) because it is in a line-of-sight environment with the UE 401 when it also receives the SLSS402.
- FIG. 3 shows the state in which the UE 403 is selected as the new Head UE.
- the software of the UE 404 which is a head UE is the member UE selected by the inter-app communication using the U-Plane.
- the UE 404 is notified of the switching request to the Head UE (ST508).
- the software of the Member UE that has received the switch request to the Head UE causes the Member UE to notify the Head UE of the switch response to the Head UE when the Member UE has a configuration or performance that can be a Head UE (. ST509). This notification is performed by inter-app communication using U-Plane.
- UE403 which is a member UE selected as a new head UE
- UE404 which is a head UE, for example notify each other of countdown notifications, and at the same timing, the head UE performs a switching operation to the member UE (ST510).
- the Member UE performs a switching operation to the Head UE (ST511).
- the SLSS402 periodically transmitted from the UE401, within the transmission interval (for example, 160 ms) of the SLSS402 so that the member UE belonging to the UE group 405 does not belong to the new UE group with the UE 401 as a head UE.
- the above-mentioned selection of the new Head UE (ST507), switching from the Head UE to the Member UE (ST510), and switching from the Member UE to the Head UE (ST511) are realized, and the new Head UE is the member UE of the old UE group 405.
- the SLSS408 is transmitted to the UE 401 (ST512).
- a new UE group 413 is formed (ST513).
- the UE 403 becomes a head UE
- FIG. 5 is a diagram showing a state in which a UE, which is a plurality of wireless devices according to a comparative example, is traveling in a passage.
- FIG. 6 is an operation sequence diagram in a comparative example.
- FIG. 7 is a diagram showing a state in which the UE shown in FIG. 5 is in the line-of-sight environment.
- UE 702 which is a member UE
- UE 703 which is a head UE, run in a platoon and belong to the same UE group 704.
- the UE 702 and the UE 703 are moving in the direction of the UE 701 that does not belong to the UE group 704.
- UE 701 which does not belong to UE group 704, periodically transmits SLSS 706 while moving in the direction of UE 702, which is a member UE.
- the UE 702 and the UE 703 communicate with each other on Side Link 705 with information necessary for platooning (mutual position information, brake information, accelerator information, etc.).
- the SLSS transmitted from the UE 703 is received by the UE 702 (ST799), and a UE group 704 having the Head UE as the UE 703 and the Member UE as the UE 702 is formed (ST800).
- the SLSS706 transmitted from the UE 701 is not received by the UE 702 before the frequency search (ST802) (ST801), but is received by the UE 702 after the frequency search (ST802) (ST803).
- the information of SLSS706 is discarded. In the state shown in FIG.
- the SLSS 706 is not received by the UE 703 and the SLSS from the UE 703 is not received by the UE 701 even after the frequency search.
- SLSS804 transmitted from UE703, which is a head UE is received by UE701 (ST804).
- UE701 When SLSS804 is detected by UE701 (ST805), UE701 will belong to the reconstructed UE group 806 (ST806).
- the position of the UE 701 is not grasped by the UE 703 until the UE 703 and the UE 701 are in the line-of-sight environment. When they overlap, it is not possible to prevent the UE 702 and the UE 701 from colliding with each other.
- the Member UE receives the SLSS from the UE outside the UE group, a new Head UE is selected. Is performed and the positions of all UEs are grasped, so that the UEs can be operated so as to avoid collisions.
- FIG. 8 is a diagram showing a configuration of the system according to the first embodiment.
- the software 1004 on the Head UE side has a processing block for selecting a new Head UE (ST507).
- the software 1004 includes a function of causing the new Head UE to transmit a Head switching request (ST508) based on the processing result.
- the software 1004 includes a processing block that performs a switching operation (ST510) from the Head UE to the Member UE to the Head UE function 1002.
- the software 1005 on the Member UE side has a frequency search (ST502) instruction function, an SLSS detection (ST504) function, a Head UE side software 1004 a notification SLSS information (ST505) function, and a Head switching response. (ST509) function, the function of notifying the Member UE function 1003 of the switching from the Member UE to the Head UE (ST511) is included.
- the signal line 1006 transmitted from the NR-V2V / C-V2V system 1001 to the software 1005 on the Member UE side it has a function to notify the software 1005 of the SLSS arrival direction and reception strength as SLSS information transmitted by the UE 401. Further, the TA value between the Member UE and the Head UE is notified to the software 1005.
- the software 1005 on the member UE side requests the NR-V2V / C-V2V system 1001 to switch from the member UE to the head UE using the signal line 1007.
- the signal line 1010 provided from the NR-V2V / C-V2V system 1001 to the software 1004 on the Head UE side has a function of notifying the software 1004 of the arrival direction and reception strength of the SLSS as SLSS information of the UE 401. Further, the TA value between the Head UE and the Member UE is notified to the software 1004.
- the UE 401 is assumed to be in the line-of-sight environment, and the process of selecting the new Head UE (ST507) is not executed.
- the signal line 1009 is used to notify the software 1004 on the Head UE side of the switching request from the Head UE to the Member UE when it is necessary to change itself to the Member UE in the new Head UE selection (ST507). ..
- the inter-app communication 1008 is used to notify the software 1005 on the member UE side to the software 1004 on the head UE side as SLSS arrival direction, reception strength, and TA value between the member UE and the head UE, and the above information.
- the new Head UE selection (ST507) is executed by the software 1004 based on the above.
- the inter-app communication 1011 is used for the software 1005 on the member UE side to notify the new head UE and the switching timing when the member UE side becomes the new head UE in the new head UE selection (ST507).
- FIG. 9 is a diagram showing an example of the hardware configuration of the UE according to the first embodiment.
- the UE includes a processor 1201, a memory 1202, a transmitter 1203, a receiver 1204, and an antenna device 1205.
- the processor 1201 is a CPU (Central Processing Unit, central processing unit, processing unit, arithmetic unit, microprocessor, microprocessor, DSP (Digital Signal Processor)), system LSI (Large Scale Integration), and the like.
- the memory 1202 is RAM (Random Access Memory), ROM (Read Only Memory), EPROM (Erasable Programmable Read Only Memory), EEPROM (registered trademark) (Electrically Memory), etc.
- the control unit 1107, the protocol processing unit 1105, the application unit 1106, the demodulation unit 1103, and the modulation unit 1110 are realized by the processor 1201.
- the functions of the control unit 1107, the protocol processing unit 1105, the application unit 1106, the demodulation unit 1103, and the modulation unit 1110 are realized by the processor 1201 executing a program in which the processing to be executed is described.
- the software is stored in memory 1202.
- the transmission data buffer unit 1108 is realized by the memory 1202.
- the encoder unit 1109 is realized by the transmitter 1203.
- the decoder unit 1104 is realized by the receiver 1204.
- the antenna 1101 and the frequency conversion unit 1102 are realized by the antenna device 1205.
- FIG. 10 is a diagram showing another example of the hardware configuration of the UE according to the first embodiment.
- the UE includes a processing circuit 1206, a transmitter 1203, a receiver 1204, and an antenna device 1205.
- the functions of the processor 1201 and the memory 1202 shown in FIG. 9 are realized by the dedicated processing circuit 1206.
- FIG. 11 is a diagram showing still another example of the hardware configuration of the UE according to the first embodiment.
- the UE includes a processor 1201, a memory 1202, a transmitter 1203, and a receiver 1204.
- the function of the antenna device 1205 shown in FIG. 9 is realized by a wiring pattern formed on at least one of the substrates included in the transmitter 1203 and the receiver 1204.
- FIG. 12 is a diagram showing a state in which a plurality of Member UEs belong to the front and back in the traveling direction of the UE group in the first embodiment.
- a plurality of member UEs 1302, 1303, 1309, 1310 exist around the UE 1301 which is a Head UE, and communication is performed by Side Link 1304, 1305, 1311, 1312 to form a UE group 1306.
- SLSS1308 transmitted from UE1307 that does not belong to UE group1306 can be received by UE1302 and UE1303, and cannot be received by UE1301, UE1309 and UE1310 because of an out-of-line environment.
- UE 1301 which is a Head UE, receives information about SLSS1308 transmitted from UE 1307 from both UE 1302 and UE 1303.
- the UE 1303 analyzes the arrival direction and the reception intensity of the SLSS 1308, and the UE 1302 analyzes the arrival direction and the reception intensity of the SLSS 1308.
- UE 1301 compares the analysis results with each other.
- the process of selecting the UE 1303 that received the SLSS1308 having a strong reception strength as the new Head UE is performed by the new Head UE selection (ST507) shown in FIG.
- the above processing shows an example in which the platooning of the UE group 1306 is proceeding with the Member UE 1302 at the head, and the UE 1307 is proceeding in the direction of the UE 1303.
- UE group 1306 goes along the road. Therefore, turn right while maintaining the platooning.
- the UE 1301 knows in advance that the UE 1303 and the UE 1302 will turn right, weighting is performed in the above-mentioned comparison between the received direction and the reception intensity, and the Member UE on the right side in the traveling direction is preferentially selected as the new Head UE. You may.
- the UE 1301 knows the traveling direction of the UE group 1306 in advance, and if there is a non-line-of-sight environment in the planned course, the Member UE at the head of the traveling direction of the UE group 1306 before the UE 1302 and the UE 1303 receive the SLSS 1308 from the UE 1307. May be selected as the new Head UE.
- the traveling direction of the UE group 1306 is different from the above.
- the UE group 1306 is platooning in the direction of the UE 1309 and is in the state shown in FIG.
- the UE 1307 is traveling in the direction of the UE 1303.
- the moving speed of the UE 1307 is faster than the moving speed of the UE group 1306.
- the UE 1307 catches up with the UE group 1306 and the UE 1302 and the UE 1303 reach the range where the SLSS 1308 can be received.
- the SLSS1308 transmitted from the UE 1307 can be received by the UE 1302 and the UE 1303, and the UE 1301 and the UE 1309 and the UE 1310 cannot be received from the UE 1307 because of a non-line-of-sight environment.
- the UE 1303 analyzes the arrival direction and the reception intensity of the SLSS 1308, and the UE 1302 analyzes the arrival direction and the reception intensity of the SLSS 1308.
- UE 1301 compares the analysis results with each other.
- the process of selecting the UE 1303 that received the SLSS1308 having a strong reception strength as the new Head UE is performed in the new Head UE selection (ST507).
- the UE 1301 Since the UE group 1306 went along the road, the UE 1301 knows that the UE group 1306 has turned left in the past while maintaining the platooning procession before. Therefore, the UE 1301 may be weighted in the above-mentioned comparison between the received direction and the reception intensity, and the UE 1303 on the left side in the traveling direction of the UE group 1306 may be preferentially selected as the new Head UE. That is, the UE 1301 may select a new Head UE based on the past movement route of the UE group 1306.
- the UE 1301 grasps the past movement route of the UE group 1306, and when there is a non-line-of-sight environment in the backward direction, the Member UE behind the traveling direction of the UE group 1306 before the UE 1302 and the UE 1303 receive the SLSS 1308 from the UE 1307. May be selected as the new Head UE.
- the configuration shown in the above-described embodiment shows an example of the contents of the present disclosure, can be combined with another known technique, and is one of the configurations as long as it does not deviate from the gist of the present disclosure. It is also possible to omit or change the part.
- 1 wireless device 2 wall, 401, 403, 404, 701, 702, 703, 1301, 1302, 1303, 1307, 1309, 1310 UE, 405, 413, 704, 806, 1306 UE group 1101 antenna 1102 frequency conversion Unit, 1103 demodulation unit, 1104 decoder unit, 1105 protocol processing unit, 1106 application unit, 1107 control unit, 1108 transmission data buffer unit, 1109 encoder unit, 1110 modulation unit, 1201 processor, 1202 memory, 1203 transmitter, 1204 receiver. 1,205 antenna device, 1206 processing circuit.
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Abstract
Description
図1は、本開示の実施の形態1にかかる無線装置の構成を示すブロック図である。通信端末装置である無線装置1は、アンテナ1101と、周波数変換部1102と、復調部1103と、デコーダー部1104と、プロトコル処理部1105と、アプリケーション部1106と、制御部1107と、送信データバッファ部1108と、エンコーダ部1109と、変調部1110とを備える。
Claims (14)
- 同期信号を用いて通信する複数の無線装置が所属するグループにおいて前記グループに所属する他の無線装置を制御する制御側無線装置の機能と前記制御側無線装置に制御される被制御側無線装置の機能とに切り替えて動作可能な無線装置であって、
信号を送信可能な送信部と、
信号を受信可能な受信部と、
前記被制御側無線装置として動作している場合に、前記グループに所属していないグループ外無線装置からの同期信号を前記受信部で受信して検出すると、検出した前記同期信号に関する情報を前記制御側無線装置に向けて前記送信部から送信させる制御部と、を備えることを特徴とする無線装置。 - 前記制御側無線装置に向けて送信される前記同期信号に関する情報には、前記同期信号の到来方向および前記同期信号の受信強度が含まれることを特徴とする請求項1に記載の無線装置。
- 前記制御部は、前記被制御側無線装置として動作している場合に、前記被制御側無線装置と前記制御側無線装置との間のTA値または相対位置に関する情報を前記制御側無線装置に向けて前記送信部から送信させることを特徴とする請求項1に記載の無線装置。
- 前記被制御側無線装置から前記制御側無線装置への前記同期信号に関する情報への通知はアプリ間通信によって行われることを特徴とする請求項1から3のいずれか1つに記載の無線装置。
- 前記制御部は、前記制御側無線装置として動作しており、かつ前記被制御側無線装置から前記同期信号に関する情報を受信した場合に、前記グループ外無線装置から前記同期信号を直接受信していないときには、前記被制御側無線装置から受信した前記同期信号に関する情報に基づいて前記グループ外無線装置に最も近い被制御側無線装置を選定する機能を有することを特徴とする請求項1から4のいずれか1つに記載の無線装置。
- 前記制御側無線装置の前記制御部は、選定された前記被制御側無線装置に制御側無線装置として動作するように指示する切替要求を前記送信部から送信させることを特徴とする請求項5に記載の無線装置。
- 選定された前記被制御側無線装置の前記制御部は、制御側無線装置として動作するように指示を受けた場合であって、制御側無線装置として動作できると判断した場合には、制御側無線装置として動作できることを示す切替応答を前記送信部から送信させることを特徴とする請求項6に記載の無線装置。
- 前記制御側無線装置の前記制御部は、前記切替応答を受信した場合には、前記制御側無線装置を前記被制御側無線装置として動作するように切り替えさせることを特徴とする請求項7に記載の無線装置。
- 前記制御側無線装置と前記被制御側無線装置との動作の切り替えを行うために、前記制御側無線装置と前記被制御側無線装置との間でカウントダウン通知を送受信することを特徴とする請求項8に記載の無線装置。
- 前記グループ外無線装置による同期信号の送信間隔の間に、前記被制御側無線装置の選定と、制御側無線装置と被制御側無線装置との動作の切替が行われることを特徴とする請求項8または9に記載の無線装置。
- 前記制御側無線装置の前記制御部は、前記グループに所属する前記無線装置の過去の移動経路に基づいて前記被制御側無線装置を選定することを特徴とする請求項5に記載の無線装置。
- 前記制御側無線装置の前記制御部は、前記グループに所属する前記無線装置に予定されている移動経路に基づいて前記被制御側無線装置を選定することを特徴とする請求項5に記載の無線装置。
- グループに所属する他の無線装置を制御する制御側無線装置の機能と前記制御側無線装置に制御される被制御側無線装置の機能とに切り替えて動作可能な無線装置を制御する制御回路であって、
前記被制御側無線装置として動作している場合に、前記グループに所属していないグループ外無線装置からの同期信号を受信して検出するステップと、
検出した前記同期信号に関する情報を前記制御側無線装置に向けて送信させるステップと、を前記無線装置に実行させることを特徴とする制御回路。 - グループに所属する他の無線装置を制御する制御側無線装置の機能と前記制御側無線装置に制御される被制御側無線装置の機能とに切り替えて動作可能な無線装置を制御するプログラムを記憶する記憶媒体であって、
前記プログラムは、
前記被制御側無線装置として動作している場合に、前記グループに所属していないグループ外無線装置からの同期信号を受信して検出するステップと、
検出した前記同期信号に関する情報を前記制御側無線装置に向けて送信させるステップと、を前記無線装置に実行させることを特徴とする記憶媒体。
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