WO2023095267A1 - 信号制御装置、フロー制御装置、通信装置、制御回路、記憶媒体、プログラムおよび信号制御方法 - Google Patents
信号制御装置、フロー制御装置、通信装置、制御回路、記憶媒体、プログラムおよび信号制御方法 Download PDFInfo
- Publication number
- WO2023095267A1 WO2023095267A1 PCT/JP2021/043277 JP2021043277W WO2023095267A1 WO 2023095267 A1 WO2023095267 A1 WO 2023095267A1 JP 2021043277 W JP2021043277 W JP 2021043277W WO 2023095267 A1 WO2023095267 A1 WO 2023095267A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- signal
- control
- section
- control signal
- blocking
- Prior art date
Links
- 238000004891 communication Methods 0.000 title claims abstract description 153
- 238000000034 method Methods 0.000 title claims description 36
- 230000000903 blocking effect Effects 0.000 claims abstract description 112
- 230000003362 replicative effect Effects 0.000 claims abstract 2
- 230000005540 biological transmission Effects 0.000 claims description 132
- 238000001514 detection method Methods 0.000 claims description 31
- 230000010076 replication Effects 0.000 claims description 27
- 238000012806 monitoring device Methods 0.000 claims description 13
- 230000000737 periodic effect Effects 0.000 claims description 3
- 230000003111 delayed effect Effects 0.000 description 20
- 238000010586 diagram Methods 0.000 description 18
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 11
- 230000001934 delay Effects 0.000 description 6
- 230000006870 function Effects 0.000 description 4
- 230000008054 signal transmission Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0231—Traffic management, e.g. flow control or congestion control based on communication conditions
- H04W28/0236—Traffic management, e.g. flow control or congestion control based on communication conditions radio quality, e.g. interference, losses or delay
-
- 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 provides a signal control device, a flow control device, a communication device, a control circuit, a storage medium, a program, and a signal that perform wireless communication with a base station on the ground under an environment where radio waves are periodically cut off. Regarding the control method.
- Patent Literature 1 discloses a technique of duplicating and delaying a transmission signal so that the transmission signal can be restored on the receiving side even in an interruption section in which a portion of the signal is blocked by the rotor blades.
- the output of the communication device is duplicated and delayed to transmit two-wave signals, thereby improving the accuracy of blocking the rotor blades.
- the signal transmitted in the cutoff section is reflected by the rotor blades and affects the ground as an interference wave.
- both signals of two waves may be blocked by the rotor blade under the condition that the blocking rate of the rotor blade is high.
- the present disclosure has been made in view of the above, and is intended to transmit signals without being blocked while suppressing the generation of interference waves to the ground due to signal reflection under conditions where the signal blocking rate is high. It is an object of the present invention to obtain a signal control device capable of
- a signal control device passes or blocks transmission signals including control signals from communication devices under an environment where radio waves are periodically blocked.
- a signal control device that controls the above, duplicating the control signal used for communication with the base station generated by the communication device in the cutoff section, which is the time period during which the periodically generated radio waves are cut off, A delay control signal obtained by adding a delay time to the duplicated control signal is transmitted in a passage section during which periodically generated radio waves are not interrupted.
- the signal control device has the effect of being able to transmit signals without being blocked while suppressing the generation of interference waves to the ground due to signal reflection under conditions where the signal blocking rate is high. .
- a diagram schematically showing an example of a configuration of a communication system according to Embodiment 1 1 is a block diagram showing an example of a configuration of a communication device according to Embodiment 1;
- FIG. 1 is a block diagram showing an example of the configuration of a signal control device used in the communication device according to Embodiment 1;
- FIG. A diagram schematically showing an example of a signal transmitted from a communication device 3 is a flow chart showing an example of a procedure of a communication control method in the communication device according to Embodiment 1;
- 3 is a flow chart showing an example of a procedure of a communication control method in the communication device according to Embodiment 1;
- FIG. 4 is a diagram schematically showing an example of transmission signal generation processing in the signal control apparatus according to Embodiment 1; Diagram showing an example of how to set the delay time
- FIG. 4 is a block diagram showing an example of the configuration of a signal control device used in a communication device according to Embodiment 2
- FIG. 8 is a diagram schematically showing an example of transmission signal generation processing in the communication device according to the second embodiment
- Flowchart showing an example of a procedure of a communication control method in a communication device according to Embodiment 2 Flowchart showing an example of a procedure of a communication control method in a communication device according to Embodiment 2
- a signal control device, a flow control device, a communication device, a control circuit, a storage medium, a program, and a signal control method according to embodiments of the present disclosure will be described below in detail with reference to the drawings.
- the signal transmitted from the communication device of the helicopter to the cutoff section is reflected by the rotor blades and affects the ground as an interference wave, or the rotor blades are cut off.
- the timing control of the transmission signal is performed between the data generation device and the communication device.
- the flow control device can adjust the transmission timing of the data generated by the data generation device, but the flow control device performs flow control on the control signal generated within the communication device. Since it occurs at a later stage, the transmission timing cannot be controlled, and there is a problem that it may be blocked by the rotor blade.
- a communication device capable of transmitting a signal to be transmitted is described.
- FIG. 1 is a diagram schematically showing an example of the configuration of a communication system according to Embodiment 1.
- FIG. A communication system 1 includes a relay station 2 , a base station 3 and a communication device 4 .
- a wireless connection is established between the relay station 2 and the base station 3 and between the relay station 2 and the communication device 4 . That is, the communication device 4 and the base station 3 are wirelessly connected via the relay station 2 .
- the relay station 2 is a device that relays wireless communication between the base station 3 and the communication device 4.
- the relay station 2 is a device that is placed in a space away from the ground, such as a communication satellite or a mobile object that stays in the air at a high altitude, and relays wireless communication.
- the base station 3 is a device that communicates with the communication device 4 via the relay station 2 .
- the base station 3 is, for example, a device that receives signals such as audio signals, video signals, and control signals from the communication device 4 via the relay station 2 and transmits signals to the communication device 4 .
- the base station 3 is located on the ground in one example.
- the communication device 4 is a device that can wirelessly communicate with the base station 3 via the relay station 2 under an environment where radio waves are periodically cut off.
- the communication device 4 is, for example, a communication device installed in a movable helicopter, aircraft, ship, automobile, or the like.
- a case where the communication device 4 is installed in an environment where radio waves are periodically cut off specifically, a case where the communication device 4 is installed in a helicopter will be described as an example.
- the relay station 2 and the base station 3 do not have the special features of the first embodiment, and a detailed description thereof will be omitted since they can be inferred by those skilled in the art.
- FIG. 2 is a block diagram showing an example of the configuration of the communication device according to Embodiment 1.
- the communication device 4 includes a data generation device 41 , an interruption cycle monitoring device 42 , a flow control device 43 , a communication device 44 and a signal control device 45 .
- Solid lines in the figure represent the flow of data, and dotted lines represent the exchange of information for control. The same applies to subsequent figures.
- the data generation device 41 is a device for generating data to be transmitted by the communication device 4 .
- An example of the data generation device 41 is an encoder or the like for video transmission.
- the blocking cycle monitoring device 42 is a device that monitors the state of radio wave interference that occurs periodically. Specifically, the interruption period monitoring device 42 monitors the state of interruption of the periodically generated radio wave, that is, the transmission beam, and the interruption period, which is the time during which the radio wave between the communication device 4 and the relay station 2 is interrupted. Sections and passing sections, which are times during which radio waves are not blocked, are detected, and the detection results are generated as blocking cycle information.
- the interruption cycle monitoring device 42 is a device for monitoring the state of the rotor blades of the helicopter.
- the blocking cycle monitoring device 42 is synchronized with the rotation cycle of the rotor blades, and detects passing sections and blocking sections with respect to passing points of radio waves transmitted and received by the communication device 4 .
- the blocking cycle monitoring device 42 notifies the flow control device 43 and the signal control device 45 of the detection result as blocking cycle information.
- the blocking cycle information is information indicating whether the environment is a passing section or a blocking section.
- the flow control device 43 is a device that controls transmission without blocking data from the data generation device 41 under an environment where radio waves are periodically blocked.
- the flow control device 43 uses the cutoff period information to generate discontinuous data by discontinuously dividing the data so that data is not transmitted in the cutoff section but is transmitted in the passing section, and adjusts the transmission timing of the discontinuous data. and output to the communication device 44.
- the flow control device 43 divides the data generated by the data generation device 41 so that the length is equal to or less than the length that can be transmitted in the passage section. That is, the flow control device 43 converts the data into discontinuous data.
- the data generated by the data generation device 41 is also called continuous data
- the discontinuous data converted by the flow control device 43 is also called discontinuous data.
- the communication device 44 is a device that transmits and receives data to and from the base station 3 via the relay station 2 .
- the communication device 44 transmits the data generated by the data generation device 41 and converted by the flow control device 43 and the control signal generated by the communication device 44 to the base station 3 in a format according to a predetermined protocol.
- Send to The control signal is, for example, a signal generated by the communication device 44 and used for communication with the base station 3 . Since the control signal is generated at arbitrary timing, it may be generated in the cut-off section or in the passage section.
- An example of communication equipment 44 is a common communication modem without compensation for periodic jamming, here radio blockage.
- the signal control device 45 controls the passage or blocking of transmission signals including control signals from the communication device 44 under an environment where radio waves are periodically blocked.
- the signal control device 45 duplicates the control signal generated by the communication device 44 in the cutoff section, and performs control for transmitting a delay control signal obtained by adding a delay time to the duplicated control signal to the passing section.
- the signal control device 45 allows the transmission signal including the data and control signal from the communication device 44 to pass through in the passing section, and transmits the transmission signal from the communication device 4 to the relay station 2 with a transmission beam.
- the signal control device 45 duplicates the control signal from the communication device 44, blocks the transmission signal including the control signal of the duplication source, and delays the duplicated control signal by giving a delay time in the cutoff section. A control signal is generated, and a delay control signal is transmitted in the transit interval.
- FIG. 3 is a block diagram showing an example of the configuration of a signal control device used in the communication device according to Embodiment 1.
- the signal control device 45 includes a path switching section 451 , a replication delay control section 452 , a signal superimposing section 453 and a signal blocking section 454 .
- the path switching unit 451 switches the signal transmission path according to the state of the rotor blades based on the cutoff cycle information. That is, the path switching unit 451 uses the blocking period information to output the control signal to the replication delay control unit 452 in the blocking section, and to the signal superimposing unit 453 in the passing section. Specifically, since the discontinuous data from the flow control device 43 is controlled to be transmitted in the passage section and not to be transmitted in the cut-off section, the path switching section 451 outputs the discontinuous data to the signal superimposing section 453 .
- the flow control device 43 also outputs the control signal to the signal superimposing unit 453 when it receives a control signal generated in the passage section.
- the flow control device 43 outputs the control signal to the replication delay control unit 452 when receiving the control signal during the cut-off period.
- the replication delay control section 452 replicates the control signal and outputs the control signal or the delay control signal to the signal superimposition section 453 .
- the replication delay control unit 452 replicates the control signal generated by the communication device 44 in the cut-off section, adds a delay time to the replicated control signal, and generates the delay control signal.
- the applied delay time can be a defined amount.
- the delay time can be set to a plurality of delay times instead of only one.
- the replication delay control section 452 can replicate the same number of delay signals as the delay time and give different delay times to each.
- the delay time is selected such that any delay control signal is transmitted in the transit section.
- the replication delay control section 452 outputs the replication source control signal and the delay control signal to the signal superimposition section 453 .
- the signal superimposing unit 453 superimposes the discontinuous data whose transmission timing is adjusted so as to be transmitted in the passage section by the flow control device 43 and the control signal or the delay control signal to generate a transmission signal, and generates the transmission signal. is output to the signal blocker 454 .
- the signal superimposing unit 453 superimposes the discontinuous data from the flow control device 43 and the control signal or the delay control signal and outputs a transmission signal in the passing section.
- the control signal at this time is generated in the passing section.
- the signal superimposing unit 453 outputs, as a transmission signal, the original control signal generated in the cut-off interval or the delayed control signal obtained by duplicating the control signal generated in the cut-off interval, in the cut-off interval. .
- the signal superimposing unit 453 superimposes the discontinuous data and the control signal or the delay control signal as signals of different frequency channels to generate a transmission signal.
- the signal blocking unit 454 blocks the transmission signal output from the signal superimposing unit 453 in the blocking section using the blocking cycle information, that is, according to the state of the rotor blades from the blocking cycle information. As a result, the transmission beam is not output to the outside of the signal control device 45 .
- the signal blocking section 454 allows the transmission signal output from the signal superimposing section 453 to pass through in the passage section. That is, a transmission beam is transmitted from the communication device 4 to the relay station 2 .
- FIG. 4 is a diagram schematically showing an example of a signal transmitted from a communication device.
- the horizontal axis indicates time and the vertical axis indicates frequency.
- FIG. 4 shows a communication scheme in which the frequency for transmitting data and the frequency for transmitting control signals are different. That is, the first frequency channel FB1 is used for transmitting control signals, and the second frequency channel FB2 is used for transmitting data generated by the data generating device 41.
- the data generated by the data generation device 41 is also called user data.
- the cut-off sections are hatched, and the passage sections are not hatched.
- the user data generated by the data generation device 41 is controlled by the flow control device 43 so as to be transmitted during the passing section, so that it is not transmitted by the communication device 44 during the blocking section.
- the control signal generated by the communication device 44 is generated after the flow control device 43 as shown in FIG.
- the example of FIG. 4 shows the case where all control signals are generated in the cutoff section.
- the signal control device 45 converts the discontinuous data in the passage section into a transmission signal and transmits it as it is, and converts the control signal generated in the cutoff section into a transmission signal, but cuts it off. In addition, the signal control device 45 duplicates the control signal generated in the blocking section so that the delayed control signal is transmitted in the passing section. A specific method for this will be described.
- FIG. 5 and 6 are flowcharts showing an example of the procedure of the communication control method in the communication device according to Embodiment 1.
- FIG. it is assumed that the interruption period monitoring device 42 monitors the period in which radio waves are interrupted by the rotor blades of the helicopter and generates interruption period information.
- the data generation device 41 generates continuous data and transmits the continuous data to the flow control device 43 (step S11).
- the flow control device 43 converts the continuous data into discontinuous data based on the interruption period information obtained from the interruption period monitoring device 42 so that the received continuous data is not interrupted by the rotor blades, and transmits the data to the communication device 44 .
- the continuous data is sequentially divided into sizes equal to or smaller than the amount of data that can be transmitted during the passage section obtained from the cutoff cycle information. That is, continuous data is converted into discontinuous data.
- the communication device 44 transmits the received discontinuous data to the signal control device 45 (step S13).
- the path switching unit 451 of the signal control device 45 outputs the received discontinuous data to the signal superimposing unit 453 based on the interruption cycle information.
- the communication device 44 transmits the control signal generated by itself to the signal control device 45 (step S14).
- the communication device 44 can generate the control signal by itself, but the timing of generating the control signal depends on the situation of the communication device 44 . Therefore, the transmission timing of the control signal may or may not overlap with the discontinuous data.
- the path switching unit 451 of the signal control device 45 determines whether the generation timing of the control signal is in the cutoff section based on the cutoff cycle information (step S15). Since the time required for transmission from the communication device 44 to the signal control device 45 is very short, the control signal generation timing may be the timing at which the signal control device 45 receives the control signal. It should be noted that the following processing is a signal control method executed by the signal control device 45 . If the control signal generation timing is not in the blocking section (No in step S15), that is, in the passing section, the path switching unit 451 outputs the control signal to the signal superimposing unit 453 (step S16). , the signal superimposing unit 453 superimposes the discontinuous data and the control signal to generate a transmission signal, and outputs it to the signal blocking unit 454 (step S17).
- the path switching unit 451 of the signal control device 45 outputs the control signal to the replication delay control unit 452 (step S18).
- the replication delay control unit 452 replicates the control signal, generates a delay control signal by adding a predetermined delay time to the replicated control signal, and outputs the delay control signal to the signal superimposition unit 453 (step S19).
- the replication delay control section 452 generates a delay control signal to which each delay time is added and outputs it to the signal superimposing section 453 .
- the signal superimposing unit 453 After that, the signal superimposing unit 453 generates a transmission signal from the control signal or the delay control signal, or superimposes the delay control signal and the discontinuous data, and outputs it to the signal blocking unit 454 (step S20).
- the signal superimposing unit 453 generates a transmission signal from the control signal or the delay control signal if there is no discontinuous data when generating the transmission signal.
- the control signal at this time is generated by the communication device 44 during the cutoff section.
- the delay control signal at this time is the one output to the signal superimposing unit 453 during the interruption period.
- the signal superimposing unit 453 superimposes the delay control signal and the discontinuous data to generate the transmission signal.
- the delay control signal at this time is the one output to the signal superimposition section 453 in the passage interval.
- the signal blocking unit 454 refers to the blocking period information and determines whether the timing at which the transmission signal is received is in the blocking section (step S21). If the timing at which the transmission signal is received falls within the blocking interval (Yes in step S21), the signal blocking section 454 blocks the transmission signal output from the signal superimposing section 453 (step S22).
- the transmission signal output in the cutoff interval is the control signal generated in the cutoff interval or part of the delayed control signal. By blocking the transmission signal, the transmission signal is not output as a transmission beam from the signal control device 45 during the blocking interval. In addition, since the transmission beam is not output from the signal control device 45, it is possible to prevent the transmission beam from being reflected by the rotor blades and affecting the ground as an interference wave during the blocking interval. Then the process ends.
- step S21 If it is not a blocking section (No in step S21), that is, if it is a passing section, the signal blocking section 454 allows the transmission signal output from the signal superimposing section 453 to pass through, and passes the transmission signal to the relay station 2.
- Send step S23. That is, the transmission signal is transmitted to the relay station 2 as a transmission beam. Then the process ends.
- the signal control device 45 does not need to modify the discontinuous data in the passage section, but duplicates the control signal transmitted in the cut-off section and delays the duplicated control signal. there is for this reason, the path switching unit 451 switches the output destination of the signal between the blocking section and the passing section.
- FIG. 7 is a diagram schematically showing an example of transmission signal generation processing in the signal control apparatus according to the first embodiment. Here, the manner in which the transmission signal is generated by the signal superimposing unit 453 of the signal control device 45 is shown.
- the original signal 110 including the discontinuous data and the control signal input to the signal control device 45, and the three delay signals 110-1, 110-2, 110-1, 110-2, 110-1, 110-2, 110-1, 110-2, 110-1, 110-2, 110-1, 110-2, 110-1, 110-2, 110-1, 110-2, 110-1, 110-2, 110-1, 110-2, 110-2, 110-1, 110-2, 110-2, 110-1, 110-2, 110-2, 110-2, 110-1, 110-2, 110-2, 110-2, 110-2, 110-1, 110-2, 110-2, 110-2, 110-1, 110-2, 110-2, 110-2, 110-1 and 110-2, respectively.
- 110-3 and a transmission signal 120 with superimposed discontinuous data and control or delayed control signals.
- the continuous data of the original signal 110 is divided into three discontinuous data 111A, 111B, 111C according to the passage sections 132A, 132B, 132C.
- the original signal 110 includes the control signal 113 produced at the interrupted interval 131A, the control signal 114 produced at the interrupted interval 131B, and the control signal 115 produced at the interrupted interval 131C.
- the delayed signals 110-1, 110-2, and 110-3 do not have the discontinuous data 111A, 111B, and 111C, but the discontinuous data 111A, 111B, and 111C are added so that the delay is easily understood. is also shown.
- the original signal 110 includes discontinuous data 111A, 111B, and 111C transmitted in passage sections 132A, 132B, and 132C, respectively, and control signals 113, 114, 115.
- the control signal 113 is input to the signal control device 45 in the cut-off section 131A.
- This control signal 113 is output from the path switching section 451 to the replication delay control section 452 in the signal control device 45 .
- a replication delay control unit 452 replicates the control signal 113 .
- the replication delay control unit 452 replicates the control signal 113 three times.
- the replication delay control unit 452 outputs the control signal 113 of the replication source to the signal superimposing unit 453 at time t1, and the signal superimposing unit 453 generates a transmission signal from the control signal 113 and outputs it.
- the control signal 113 is a signal generated in the cutoff section 131A, the transmission is cut off by the signal cutoff section 454 . In other words, nothing is output as the transmission signal 120 .
- the replication delay control unit 452 gives a predetermined delay time to each of the replicated control signals.
- the replication delay control section 452 gives delays of ⁇ T, 2 ⁇ T and 3 ⁇ T to the replicated control signal.
- ⁇ T is 1 ⁇ 3 of the time of the cutoff sections 131A, 131B, 131C and equal to the time of the passage sections 132A, 132B, 132C.
- the replication delay control section 452 outputs the delay control signal 113-1 to the signal superimposition section 453 at time t2.
- the replication delay control section 452 outputs delay control signals 113-2 and 113-3 to the signal superimposition section 453 at times t3 and t4, respectively.
- Times t2 and t3 are in the passing section 132A, and time t4 is in the blocking section 131B.
- the route switching section 451 outputs the discontinuous data 111 A from the communication device 44 to the signal superimposing section 453 .
- the signal superimposing unit 453 superimposes the discontinuous data 111 A and the delay control signals 113 - 1 and 113 - 2 present in the passage section 132 A to generate the transmission signal 120 and outputs it to the signal blocking unit 454 .
- the signal blocking unit 454 refers to the blocking period information and allows the transmission signal 120 to pass through because it is the passing section 132A. As a result, transmission signal 120 including discontinuous data 111A and delay control signals 113-1 and 113-2 is transmitted.
- the delay control signal 113-3 is input to the signal superimposing section 453 at time t4 of the cutoff section 131B.
- the signal superimposing unit 453 generates a transmission signal from the delay control signal 113-3 and outputs it, but the transmission signal is blocked by the signal blocking unit 454 because it is in the blocking section 131B.
- control signal 114 is input to the signal control device 45 in the cut-off section 131B.
- the control signal 114 is duplicated, and the original control signal 114 is input to the signal superimposing unit 453 at time t5.
- the duplicated control signals become delay control signals 114-1, 114-2 and 114-3 given delay times of ⁇ T, 2 ⁇ T and 3 ⁇ T, respectively.
- the delay control signals 114-1, 114-2 and 114-3 are output to the signal superimposing section 453 at times t6, t7 and t8, respectively.
- Time t6 is in the cutoff section 131B, and times t7 and t8 are in the passing section 132B.
- the signal superimposing unit 453 generates and outputs a transmission signal from the delay control signal 114-1 input during the cutoff interval 131B, but the signal cutoff unit 454 cuts off the transmission signal due to the cutoff interval 131B.
- the route switching section 451 outputs the discontinuous data 111 B from the communication device 44 to the signal superimposing section 453 .
- the signal superimposing unit 453 superimposes the discontinuous data 111 B and the delay control signals 114 - 2 and 114 - 3 existing in the passage section 132 B to generate the transmission signal 120 and outputs it to the signal blocking unit 454 .
- the signal blocking unit 454 refers to the blocking period information and allows the transmission signal 120 to pass through because it is the passing section 132B. As a result, transmission signal 120 including discontinuous data 111B and delay control signals 114-2 and 114-3 is transmitted.
- control signal 115 is input to the signal control device 45 in the cut-off section 131C.
- the control signal 115 is duplicated, and the original control signal 115 is input to the signal superimposing unit 453 at time t9.
- the duplicated control signals become delay control signals 115-1, 115-2 and 115-3 given delay times of ⁇ T, 2 ⁇ T and 3 ⁇ T, respectively.
- the delay control signals 115-1, 115-2 and 115-3 are output to the signal superimposing section 453 at times t10, t11 and t12, respectively. Times t10 and t11 are in the cutoff section 131C, and time t12 is in the passage section 132C.
- Signal superimposing section 453 generates transmission signals from delay control signals 115-1 and 115-2 input in cutoff section 131C, and outputs them. Cut off.
- the route switching section 451 When the passage section 132 C is reached, the route switching section 451 outputs the discontinuous data 111 C from the communication device 44 to the signal superimposing section 453 .
- the signal superimposing unit 453 superimposes the discontinuous data 111 C and the delay control signal 115 - 3 existing in the passage section 132 C to generate the transmission signal 120 and outputs it to the signal blocking unit 454 .
- the signal blocker 454 refers to the block cycle information and allows the transmission signal 120 to pass through because it is the passage section 132C. As a result, transmission signal 120 including discontinuous data 111C and delay control signal 115-3 is transmitted.
- FIG. 8 is a diagram showing an example of a delay time setting method.
- the horizontal axis indicates time.
- the length of the blocking section 141 is three times the length of the passing section 142 .
- the signal 150 to be delayed has the length of the cut-off section 141 and the passage section 142 added together.
- delayed signal 151 delays signal 150 by an amount that is 1/3 that of cut-off interval 141
- delayed signal 152 delays signal 150 by an amount that is 2/3 that of cut-off interval 141
- delayed signal 153 delays signal 150 by an amount that is 3/3 that of cut-off interval 141 .
- all control signals generated in the impeding section 141 by the rotor can be moved to the passing section 142 by one of the delayed signals 151 , 152 , 153 .
- delayed signal 153 of FIG. Delay signal 152 of FIG. If the control signal is present in portion 151C of signal 150, delayed signal 151 of FIG.
- the length of the passing section 142 is ⁇ T
- the length of the blocking section is 3 ⁇ T.
- the transmission signal is transmitted from the communication device 4, but the influence of the cutoff section can be suppressed in the same way when the transmission signal is received.
- the communication device 4 duplicates the control signal and adds a delay time to the duplicated control signal, in addition to the flow control for avoiding the cut-off section and transmitting the data. Generate a delay control signal.
- the control signal generated in the blocking section is transferred to the passing section and transmitted.
- the communication device 4 according to Embodiment 1 transmits the transmission signal generated from the control signal generated in the cut-off section and the delay control signal output to the signal superimposing unit 453 in the cut-off section to the outside of the communication device 4.
- Embodiment 2 In the second embodiment, instead of adding a fixed delay to the control signal generated in the cut-off section, the control signal is stored until the passage section is reached, and the control signal is transmitted when the passage section is reached. do. Further, although the communication system 1 in which the discontinuous data and the control signal are transmitted on different frequencies has been illustrated in the first embodiment, communication in which the discontinuous data and the control signal are transmitted on the same frequency is described in the second embodiment. The system 1 will be described as an example.
- the configurations of the communication system 1 and the communication device 4 according to the second embodiment are the same as those described in the first embodiment. However, in the second embodiment, the configuration of the signal control device 45 of the communication device 4 is different from that in the first embodiment.
- the same reference numerals are given to the same components as in the first embodiment, the description thereof is omitted, and the different parts will be described.
- FIG. 9 is a block diagram showing an example of the configuration of a signal control device used in the communication device according to Embodiment 2.
- the signal control device 45 includes a path switching section 451 , a signal detection storage section 455 , a control section 456 and a signal blocking section 454 .
- a signal detection storage unit 455 is provided instead of the replication delay control unit 452 . That is, the signal detection/storage unit 455 monitors the signal during the interruption interval, copies the control signal when the control signal is detected, and stores the copied control signal.
- the path switching unit 451 outputs the input signal to the path to the signal detection storage unit 455 when the current is in the interruption section based on the interruption cycle information.
- the signal detection/storage unit 455 monitors the signal flowing through the path, that is, the control signal, and when the control signal is detected, duplicates the control signal, stores the duplicated control signal, and blocks the original control signal from the signal blocking unit. Output to 454.
- the original control signal output to the signal blocking unit 454 is used as a transmission signal, but is blocked by the signal blocking unit 454 because it is in the blocking section.
- the signal detection storage unit 455 outputs the duplicated control signal to the signal blocking unit 454 according to the transmission instruction from the control unit 456 .
- the duplicated control signal is stored in the signal detection/storage unit 455 and output according to a transmission instruction from the control unit 456, so it can be called a delay control signal. Further, the route switching unit 451 outputs the input signal to the route to the signal blocking unit 454 when the current is the passing section based on the blocking period information.
- the control unit 456 outputs a transmission instruction to the signal detection and storage unit 455 at the timing when the cutoff section changes to the passing section based on the cutoff period information from the cutoff period monitoring device 42 .
- the delay control signal is output from the signal detection/storage unit 455 to the signal blocking unit 454 according to the transmission instruction from the control unit 456 .
- the signal blocking unit 454 arranges the input discontinuous data and the control signal or the delay control signal in predetermined slots to generate and transmit a transmission signal. Based on the blocking period information, the signal blocking unit 454 blocks the transmission signal when the current is in the blocking section, and allows the transmission signal to pass through when it is in the passing section, and transmits the transmission beam to the relay station 2. do.
- FIG. 10 is a diagram schematically showing an example of transmission signal generation processing in the communication device according to the second embodiment.
- FIG. 10 shows the relationship between original signal 160, delayed signal 160-1 and transmission signal 170 in the second embodiment.
- a state in which the transmission signal 170 is output from the signal blocking unit 454 of the signal control device 45 is shown.
- the original signal 160 including the discontinuous data 161A, 161B, 161C and the control signals 162, 163, 164 input to the signal control device 45 and the delayed copies of the control signals 162, 163, 164 are delayed.
- Delayed signal 160-1 including control signals 162-1, 163-1 and 164-1
- Transmission signal including discontinuous data 161A, 161B and 161C and delayed control signals 162-1, 163-1 and 164-1 170 and are shown.
- the flow control device 43 arranges discontinuous data only in passage sections so as not to transmit continuous data in cut-off sections. Further, in Embodiment 1, since the frequency channel for transmitting discontinuous data is different from the frequency channel for transmitting control signals, continuous data is changed to discontinuous data so as to have a size that can be transmitted in the passage interval. had split.
- discontinuous data 161A, 161B, 161C and control signals 162, 163, 164 or delay control signals 162-1, 162-2, 162-3 are transmitted on the same frequency channel, , 182A, 182B, and 182C, discontinuous data 161A, 161B, and 161C are arranged at intervals for transmitting control signals or delay control signals 162-1, 162-2, and 162-3.
- the passage sections 182A, 182B, 182C are the first time slots 183A, 183B, 183C, which are times for transmitting the discontinuous data 161A, 161B, 161C, and the control signals 162, 163, 164 or and second time slots 184A, 184B, 184C during which delay control signals 162-1, 163-1, 164-1 are transmitted.
- the original signal 160 also includes the control signals 162, 163, 164 generated at the cutoff intervals 181A, 181B, 181C.
- a control signal 162 from the communication device 44 is input to the signal control device 45 in the cut-off section 181A. Since this control signal 162 is input in the cutoff section 181A, it is output from the path switching section 451 to the signal detection storage section 455 in the signal control device 45 .
- the signal detection storage unit 455 copies and stores the control signal 162 . Further, the signal detection storage unit 455 outputs the control signal 162 of the copy source to the signal blocking unit 454 .
- the signal blocking unit 454 places the received control signal 162 in the second time slot of the transmission signal, the signal blocking unit 454 refers to the blocking period information and the current environment is the blocking section 181A. , block the transmission of the transmission signal. That is, the transmission signal 170 is not output.
- the route switching section 451 outputs the discontinuous data 161A from the communication device 44 to the signal blocking section 454.
- the control unit 456 refers to the cutoff period information and outputs a transmission instruction to the signal detection and storage unit 455 at the timing when the cutoff section 181A changes to the passing section 182A.
- the signal detection storage unit 455 Upon receiving the transmission instruction from the control unit 456, the signal detection storage unit 455 outputs the stored control signal 162 to the signal blocking unit 454 as the delay control signal 162-1.
- Signal blocker 454 arranges discontinuous data 161A in first time slot 183A of transmission signal 170 and arranges delay control signal 162-1 in second time slot 184A of transmission signal 170.
- the signal blocking unit 454 refers to the blocking cycle information and passes the transmission signal 170 because the current environment is the passing section 182A.
- the signal detection storage unit 455 receives a transmission instruction from the control unit 456 and blocks the delay control signals 163-1 and 164-1 in the passage sections 182B and 182C, respectively. Output to unit 454 .
- the signal blocker 454 arranges the discontinuous data 161B, 161C in the first time slots 183B, 183C of the transmission signal 170, and arranges the delay control signals 163-1, 164-1 in the second time slots 184B, 184C of the transmission signal 170. to be placed.
- the signal blocker 454 refers to the block cycle information and passes the transmission signal 170 because the current environments are the pass sections 182B and 182C.
- discontinuous data 161A, 161B, 161C and control signals 162, 163, 164 or delay control signals 162-1, 163-1, 164-1 are transmitted on the same frequency channel. Even in this case, it is possible to transmit discontinuous data 161A, 161B, 161C and control signals 162, 163, 164 or delay control signals 162-1, 163-1, 164-1 without overlapping the signals. .
- the discontinuous data 161A, 161B, 161C on the control signals 162, 163, 164 or the delay control signals 162-1, 163-1, 164-1. There is no need to provide the signal superimposing unit 453 as described in the first embodiment.
- the delay given to the control signal is not fixed as in the first embodiment, but dynamically changes according to the timing at which the control signal is generated during the interruption interval.
- 11 and 12 are flowcharts showing an example of the procedure of the communication control method in the communication device according to the second embodiment.
- the period in which radio waves are interrupted by the rotor blades of the helicopter is monitored by the interruption period monitoring device 42 and the interruption period information is generated.
- the data generation device 41 generates continuous data and transmits the continuous data to the flow control device 43 (step S31).
- the flow control device 43 continuously transmits the received continuous data in the first time slot within the passing section based on the cutoff cycle information obtained from the cutoff cycle monitor 42 so that the received continuous data is not cut off by the rotor blades.
- the data is converted into discontinuous data and transmitted to the communication device 44 (step S32).
- the first time slot is a section other than the second time slot for control signal transmission in the passage section.
- the communication device 44 transmits the received discontinuous data to the signal control device 45 (step S33).
- the path switching unit 451 of the signal control device 45 outputs the received discontinuous data to the signal blocking unit 454 based on the blocking cycle information. That is, the discontinuous data is input to the signal control device 45 at the timing when the path switching unit 451 switches to the signal blocking unit 454 .
- the communication device 44 transmits the control signal generated by itself (step S34).
- the communication device 44 can generate the control signal by itself, but the timing of generating the control signal depends on the situation of the communication device 44 . Therefore, the transmission timing of the control signal may or may not overlap with the discontinuous data.
- the path switching unit 451 of the signal control device 45 determines whether the control signal generation timing is in the cutoff section based on the cutoff cycle information (step S35). Since the time required for transmission from the communication device 44 to the signal control device 45 is very short, the control signal generation timing may be the timing at which the signal control device 45 receives the control signal. It should be noted that the following processing is a signal control method executed by the signal control device 45 . If the control signal generation timing is not in the blocking section (No in step S35), that is, in the passing section, the path switching unit 451 outputs the control signal to the signal blocking unit 454 (step S36).
- the signal blocker 454 generates a transmission signal in which the discontinuous data is arranged in the first time slot and the control signal is arranged in the second time slot (step S37).
- the signal blocking unit 454 refers to the blocking period information, and since the timing at which the transmission signal is received is in the passing section, the transmission signal is allowed to pass through and is transmitted to the relay station 2 (step S38). Then the process ends.
- the path switching unit 451 outputs the control signal to the signal detection/storage unit 455 (step S39), and the signal detection/storage unit When 455 detects the control signal, it duplicates the control signal and stores the duplicated control signal (step S40). Further, the signal detection/storage unit 455 directly outputs the original control signal to the signal blocking unit 454 (step S41).
- the signal blocking unit 454 blocks the control signal because the timing at which the control signal is received from the blocking period information is the blocking section (step S42). As a result, no control signal is output from the signal control device 45 during the cutoff section. In addition, since no control signal is output from the signal control device 45 during the cutoff interval, it is possible to prevent the control signal from being reflected by the rotor blades and affecting the ground as an interference wave.
- the control unit 456 of the signal control device 45 determines whether the cut-off section has switched to the passage section based on the cut-off cycle information (step S43). If it has not switched to the passing section (No in step S43), it will be in a waiting state. Further, when the passage section has been switched to (Yes in step S43), the control section 456 transmits a transmission instruction to the signal detection and storage section 455 (step S44). Upon receiving the transmission instruction from the control unit 456, the signal detection storage unit 455 outputs the stored duplicated control signal to the signal blocking unit 454 as a delay control signal (step S45).
- the signal blocking unit 454 generates a transmission signal in which the discontinuous data is arranged in the first time slot and the delay control signal is arranged in the second time slot (step S46).
- the signal blocking unit 454 refers to the blocking period information, and since the timing at which the transmission signal is received is in the passing section, the transmission signal is allowed to pass through and is transmitted to the relay station 2 (step S47). Then the process ends.
- the communication device 4 transmits the first time slot in which discontinuous data is arranged and the control signal or the delay control signal in the passage section not blocked by the rotor blades in the flow control device 43. Discontinuous data and the control signal or the delayed control signal are transmitted on the same frequency channel by providing a second time slot to be arranged. Even in such a case, the discontinuous data and the control signal or the delay control signal do not overlap, and the transmission signal can be transmitted to the base station 3 while avoiding blockage by the rotor blades. As a result, the communication system 1 in which the discontinuous data and the control signal or the delay control signal are transmitted on the same frequency channel and the transmission signal of the radio wave from the communication device 4 are cut off by the rotor. There is an effect that desired data can be reliably transmitted and received in the device 4 as well.
- each device shown in FIG. 2 and each processing unit shown in FIGS. 3 and 9 may be configured as a single circuit or device, or a plurality of functional units may be configured as one circuit or device.
- each unit may be implemented by a control circuit including a memory and a processor that executes a program stored in the memory, or may be implemented by dedicated hardware.
- the communication device 4 or the signal control device 45 configuring the communication device 4 is implemented by a control circuit.
- FIG. 13 is a diagram showing an example of the hardware configuration of the control circuit.
- the control circuit 400 shown in FIG. 13 includes an input section 401 , a processor 402 , a memory 403 and an output section 404 .
- Each part of the control circuit 400 is interconnected via a bus 411 .
- the input unit 401 accepts signals from the outside.
- the output unit 404 outputs the signal generated by the control circuit 400 to the outside.
- the processor 402 is, for example, a CPU (Central Processing Unit), a central processing unit, a processing unit, an arithmetic unit, a microprocessor, a microcomputer, a DSP (Digital Signal Processor), or the like. Processor 402 performs various processes.
- the memory 403 is a non-volatile memory such as RAM (Random Access Memory), ROM (Read Only Memory), flash memory, EPROM (Erasable Programmable Read Only Memory), EEPROM (registered trademark) (Electrically Erasable Programmable Read Only Memory). Alternatively, it may be a volatile semiconductor memory, magnetic disk, flexible disk, optical disk, compact disk, mini disk, DVD (Digital Versatile Disk), or the like.
- the memory 403 stores programs for operating the communication device 4, control cycle information, and the like.
- the processor 402 reads and executes a program stored in the memory 403 via the bus 411 and controls the processing and control of the communication device 4 as a whole.
- the functions of the data generation device 41 , cutoff cycle monitoring device 42 , flow control device 43 , communication device 44 and signal control device 45 shown in FIG. 2 are implemented using the processor 402 .
- the memory 403 is used as a work area for the processor 402.
- the memory 403 also stores programs such as a boot program, a communication program, and a communication control program for executing a communication control method.
- processor 402 loads a communication control program into memory 403 and executes various processes.
- the memory 403 stores programs and the like for operating the signal control device 45.
- FIG. Also, in the case of FIG. 9, the memory 403 stores the duplicated control signal.
- the processor 402 reads and executes a program stored in the memory 403 via the bus 411 and controls the processing and control of the signal control device 45 as a whole.
- Functions of the path switching unit 451, the replication delay control unit 452, the signal superimposition unit 453, and the signal blocking unit 454 shown in FIG. 3, or the path switching unit 451, the signal detection storage unit 455, the control unit 456, and the signal The functionality of blocker 454 is implemented using processor 402 .
- the memory 403 is used as a work area for the processor 402.
- the memory 403 also stores programs such as a boot program, a communication program, and a signal control program for executing a signal control method.
- processor 402 loads a signal control program into memory 403 and executes various processes.
- the dedicated hardware is , for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a combination thereof.
- the computer has the same functions as the communication device 4.
- the computer has the same functions as the signal control device 45 .
- 1 communication system 2 relay station, 3 base station, 4 communication device, 41 data generation device, 42 cutoff cycle monitoring device, 43 flow control device, 44 communication device, 45 signal control device, 451 path switching unit, 452 replication delay control section, 453 signal superimposition section, 454 signal blocking section, 455 signal detection storage section, 456 control section.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
図1は、実施の形態1に係る通信システムの構成の一例を模式的に示す図である。通信システム1は、中継局2と、基地局3と、通信装置4と、を備える。中継局2と基地局3との間および中継局2と通信装置4との間は、無線で接続されている。すなわち、通信装置4と基地局3とは、中継局2を介して無線接続されている。
実施の形態2では、遮断区間に生成された制御信号に固定遅延を付与するのではなく、通過区間になるまで制御信号を保存し、通過区間になったときに制御信号を送信する方法について説明する。また、実施の形態1では不連続データと制御信号とが異なる周波数で送信される通信システム1を例示したが、実施の形態2では不連続データと制御信号とが同一の周波数で送信される通信システム1を例に挙げて説明する。
Claims (11)
- 周期的に電波が遮断される環境の下で、通信機器からの制御信号を含む送信信号の通過または遮断の制御を行う信号制御装置であって、
周期的に発生する前記電波が遮断される時間である遮断区間で前記通信機器で生成された基地局との間の通信に使用される前記制御信号を複製し、複製した制御信号に遅延時間を付与した遅延制御信号を、周期的に発生する前記電波が遮断されない時間である通過区間に送信することを特徴とする信号制御装置。 - フロー制御装置によってデータが不連続に分割され、前記通過区間に送信されるように送信タイミングが調整された不連続データと、前記制御信号または前記遅延制御信号と、を重畳して送信信号を生成し、前記送信信号を出力する信号重畳部と、
前記制御信号を複製し、複製元の前記制御信号または前記遅延制御信号を前記信号重畳部に出力する複製遅延制御部と、
前記環境が前記通過区間および前記遮断区間のいずれであるのかを示す遮断周期情報を用いて、前記遮断区間の場合には前記制御信号を前記複製遅延制御部に出力し、前記通過区間の場合には前記制御信号を前記信号重畳部に出力する経路切替部と、
を備えることを特徴とする請求項1に記載の信号制御装置。 - 前記複製遅延制御部は、前記制御信号を複数複製し、複数の複製した制御信号のそれぞれに異なる遅延時間を付与した複数の前記遅延制御信号を前記信号重畳部に出力することを特徴とする請求項2に記載の信号制御装置。
- 前記遮断周期情報を用いて、前記遮断区間の場合には前記信号重畳部から出力される前記送信信号を遮断し、前記通過区間の場合には前記信号重畳部から出力される前記送信信号を通過させる信号遮断部をさらに備えることを特徴とする請求項2または3に記載の信号制御装置。
- フロー制御装置によってデータが不連続に分割され、前記通過区間に送信されるように送信タイミングが調整された不連続データと、前記制御信号または前記遅延制御信号と、を含む送信信号を、前記環境が前記通過区間および前記遮断区間のいずれであるのかを示す遮断周期情報を用いて、前記遮断区間の場合には遮断し、前記通過区間の場合には通過させる信号遮断部と、
前記制御信号を検出すると前記制御信号を複製し、複製した制御信号を記憶する信号検出記憶部と、
前記遮断周期情報に基づいて、前記遮断区間から前記通過区間に変わるタイミングで前記信号検出記憶部に送信指示を出力する制御部と、
前記環境が前記通過区間および前記遮断区間のいずれであるのかを示す遮断周期情報を用いて、前記遮断区間の場合には前記制御信号を前記信号検出記憶部に出力し、前記通過区間の場合には前記制御信号を前記信号遮断部に出力する経路切替部と、
を備え、
前記信号検出記憶部は、前記送信指示を受けると、複製した制御信号を前記遅延制御信号として前記信号遮断部に出力することを特徴とする請求項1に記載の信号制御装置。 - 周期的に電波が遮断される環境の下で、データ生成装置からのデータを遮断されずに送信の制御を行うフロー制御装置であって、
前記環境が周期的に発生する前記電波が遮断されない時間である通過区間および周期的に発生する前記電波が遮断される時間である遮断区間のいずれであるのかを示す遮断周期情報を用いて、前記遮断区間に送信せず、前記通過区間で送信するように前記データを不連続に分割した不連続データを生成し、前記不連続データの送信タイミングを調整して出力することを特徴とするフロー制御装置。 - 周期的に電波が遮断される環境の下で、中継局を介して基地局との間で無線によって通信可能な通信装置であって、
周期的に発生する電波の遮断の状態を監視し、前記電波が遮断される時間である遮断区間および電波が遮断されない時間である通過区間を検出し、検出した結果を遮断周期情報として生成する遮断周期監視装置と、
請求項6に記載のフロー制御装置と、
前記不連続データと、前記基地局との間の通信の制御で使用される制御信号と、を送信する通信機器と、
請求項1から5のいずれか1つに記載の信号制御装置と、
を備えることを特徴とする通信装置。 - 周期的に電波が遮断される環境の下で、通信機器からの制御信号を含む送信信号の通過または遮断の制御を行う信号制御装置を制御する制御回路であって、
周期的に発生する前記電波が遮断される時間である遮断区間で前記通信機器で生成された基地局との間の通信に使用される前記制御信号を複製、
複製した制御信号に遅延時間を付与した遅延制御信号を、周期的に発生する前記電波が遮断されない時間である通過区間に送信、
を前記信号制御装置に実行させることを特徴とする制御回路。 - 周期的に電波が遮断される環境の下で、通信機器からの制御信号を含む送信信号の通過または遮断の制御を行う信号制御装置を制御するプログラムを記憶した記憶媒体であって、
前記プログラムは、
周期的に発生する前記電波が遮断される時間である遮断区間で前記通信機器で生成された基地局との間の通信に使用される前記制御信号を複製、
複製した制御信号に遅延時間を付与した遅延制御信号を、周期的に発生する前記電波が遮断されない時間である通過区間に送信、
を前記信号制御装置に実行させることを特徴とする記憶媒体。 - 周期的に電波が遮断される環境の下で、通信機器からの制御信号を含む送信信号の通過または遮断の制御を行うコンピュータを制御するプログラムであって、
前記コンピュータに、
周期的に発生する前記電波が遮断される時間である遮断区間で前記通信機器で生成された基地局との間の通信に使用される前記制御信号を複製するステップと、
複製した制御信号に遅延時間を付与した遅延制御信号を、周期的に発生する前記電波が遮断されない時間である通過区間に送信するステップと、
を実行させることを特徴とするプログラム。 - 周期的に電波が遮断される環境の下で、通信機器からの制御信号を含む送信信号の通過または遮断の制御を行う信号制御装置を制御する信号制御方法であって、
前記信号制御装置が、周期的に発生する前記電波が遮断される時間である遮断区間で前記通信機器で生成された基地局との間の通信に使用される前記制御信号を複製するステップと、
前記信号制御装置が、複製した制御信号に遅延時間を付与した遅延制御信号を、周期的に発生する前記電波が遮断されない時間である通過区間に送信するステップと、
を含むことを特徴とする信号制御方法。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP21965639.4A EP4412105A1 (en) | 2021-11-25 | 2021-11-25 | Signal control device, flow control device, communication device, control circuit, storage medium, program, and signal control method |
JP2022519835A JP7158625B1 (ja) | 2021-11-25 | 2021-11-25 | 信号制御装置、通信装置、制御回路、記憶媒体、プログラムおよび信号制御方法 |
PCT/JP2021/043277 WO2023095267A1 (ja) | 2021-11-25 | 2021-11-25 | 信号制御装置、フロー制御装置、通信装置、制御回路、記憶媒体、プログラムおよび信号制御方法 |
CA3238586A CA3238586A1 (en) | 2021-11-25 | 2021-11-25 | Signal control device, communication apparatus, control circuit, storage medium, and signal control method |
US18/604,900 US20240224108A1 (en) | 2021-11-25 | 2024-03-14 | Signal control device, communication apparatus, control circuit, and signal control method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2021/043277 WO2023095267A1 (ja) | 2021-11-25 | 2021-11-25 | 信号制御装置、フロー制御装置、通信装置、制御回路、記憶媒体、プログラムおよび信号制御方法 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US18/604,900 Continuation US20240224108A1 (en) | 2021-11-25 | 2024-03-14 | Signal control device, communication apparatus, control circuit, and signal control method |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2023095267A1 true WO2023095267A1 (ja) | 2023-06-01 |
Family
ID=83691981
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2021/043277 WO2023095267A1 (ja) | 2021-11-25 | 2021-11-25 | 信号制御装置、フロー制御装置、通信装置、制御回路、記憶媒体、プログラムおよび信号制御方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20240224108A1 (ja) |
EP (1) | EP4412105A1 (ja) |
JP (1) | JP7158625B1 (ja) |
CA (1) | CA3238586A1 (ja) |
WO (1) | WO2023095267A1 (ja) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002330092A (ja) * | 2001-04-27 | 2002-11-15 | Mitsubishi Electric Corp | ヘリコプター衛星通信方法、並びにその方法に使用するヘリコプター搭載通信装置及び地上局通信装置 |
JP2009212665A (ja) * | 2008-03-03 | 2009-09-17 | Mitsubishi Electric Corp | ヘリコプター衛星通信方法、並びにその方法に使用するヘリコプター搭載通信装置及び地上局通信装置 |
US20100322150A1 (en) * | 2006-10-22 | 2010-12-23 | Viasat, Inc. | Cyclical obstruction communication system |
JP2013207734A (ja) * | 2012-03-29 | 2013-10-07 | Mitsubishi Electric Corp | ヘリコプター衛星通信システム、通信装置、通信方法、及び通信プログラム |
WO2019171430A1 (ja) * | 2018-03-05 | 2019-09-12 | 三菱電機株式会社 | 通信装置および遮蔽予測方法 |
JP2020010214A (ja) | 2018-07-10 | 2020-01-16 | 日本電気株式会社 | 通信システム、送信装置、遅延信号重畳装置、通信方法、及び制御プログラム |
-
2021
- 2021-11-25 JP JP2022519835A patent/JP7158625B1/ja active Active
- 2021-11-25 CA CA3238586A patent/CA3238586A1/en active Pending
- 2021-11-25 EP EP21965639.4A patent/EP4412105A1/en active Pending
- 2021-11-25 WO PCT/JP2021/043277 patent/WO2023095267A1/ja active Application Filing
-
2024
- 2024-03-14 US US18/604,900 patent/US20240224108A1/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002330092A (ja) * | 2001-04-27 | 2002-11-15 | Mitsubishi Electric Corp | ヘリコプター衛星通信方法、並びにその方法に使用するヘリコプター搭載通信装置及び地上局通信装置 |
US20100322150A1 (en) * | 2006-10-22 | 2010-12-23 | Viasat, Inc. | Cyclical obstruction communication system |
JP2009212665A (ja) * | 2008-03-03 | 2009-09-17 | Mitsubishi Electric Corp | ヘリコプター衛星通信方法、並びにその方法に使用するヘリコプター搭載通信装置及び地上局通信装置 |
JP2013207734A (ja) * | 2012-03-29 | 2013-10-07 | Mitsubishi Electric Corp | ヘリコプター衛星通信システム、通信装置、通信方法、及び通信プログラム |
WO2019171430A1 (ja) * | 2018-03-05 | 2019-09-12 | 三菱電機株式会社 | 通信装置および遮蔽予測方法 |
JP2020010214A (ja) | 2018-07-10 | 2020-01-16 | 日本電気株式会社 | 通信システム、送信装置、遅延信号重畳装置、通信方法、及び制御プログラム |
Also Published As
Publication number | Publication date |
---|---|
EP4412105A1 (en) | 2024-08-07 |
US20240224108A1 (en) | 2024-07-04 |
JPWO2023095267A1 (ja) | 2023-06-01 |
JP7158625B1 (ja) | 2022-10-21 |
CA3238586A1 (en) | 2023-06-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9385831B2 (en) | Circuits and method to enable efficient generation of direct digital synthesizer based waveforms of arbitrary bandwidth | |
JP6494819B2 (ja) | インダストリアル・インターネット・フィールド層ブロードバンドバス・アーキテクチャに基づく同期方法と装置 | |
US8081663B2 (en) | Time synchronization method and relay apparatus | |
US9608855B2 (en) | Time control apparatus, time control method, and program | |
KR101377731B1 (ko) | 중복 무선 시스템을 동기화하는 방법 및 시스템 | |
JP2019505127A (ja) | 同期方法及び装置 | |
WO2016119520A1 (en) | System and method for tdd-fdd duplexing in a radio architecture | |
KR20090099136A (ko) | 이동통신 시스템에서 기지국의 파일롯 비콘 발생 장치 | |
CN109417493B (zh) | 往返时间偏差控制方法和布置 | |
WO2023095267A1 (ja) | 信号制御装置、フロー制御装置、通信装置、制御回路、記憶媒体、プログラムおよび信号制御方法 | |
KR20100088791A (ko) | 통신시스템에서 시간 동기화 장치 및 방법 | |
JP6174640B2 (ja) | 基地局および無線通信方法 | |
JP4439286B2 (ja) | 無線同期方法およびそれを利用した基地局装置 | |
EP3504851B1 (en) | Flow control in wireless communication systems | |
JP6897456B2 (ja) | 基地局装置、送信方法、プログラム | |
JP2008278151A (ja) | Ts信号伝送遅延時間調整装置及びその動作方法並びに地上デジタル放送送信システム | |
KR102082205B1 (ko) | 패킷기반 주파수 도약시스템 및 제어방법 | |
JP2017007459A (ja) | 軌道回路用送信器 | |
JP7553079B2 (ja) | 無線ノード | |
CN116938379B (zh) | 时间同步的方法、装置、电子设备及计算机可读存储介质 | |
JP7284028B2 (ja) | 無線通信システム及び無線中継局装置 | |
JP6195183B2 (ja) | 信号分離装置及び信号分離方法 | |
JP5950776B2 (ja) | 時分割データ通信システムおよび時分割データ通信装置 | |
JP6419906B2 (ja) | 基地局および無線通信方法 | |
JP6408670B2 (ja) | 基地局および無線通信方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 2022519835 Country of ref document: JP |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21965639 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2021965639 Country of ref document: EP Effective date: 20240501 |
|
ENP | Entry into the national phase |
Ref document number: 3238586 Country of ref document: CA |
|
ENP | Entry into the national phase |
Ref document number: 3238586 Country of ref document: CA |
|
NENP | Non-entry into the national phase |
Ref country code: DE |