CN114337704B - Meteor trail communication device and communication method - Google Patents
Meteor trail communication device and communication method Download PDFInfo
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Abstract
The invention provides a meteor trail communication device and a communication method, comprising the following steps: the cooperative control module is used for sending channel use permission information to the link transmission modules in all communication directions; the link transmission module in each communication direction is used for sending a detection signal to the air when the channel use permission information indicates that the channel use permission information is in a public detection period so as to detect whether a meteor trail channel appears or not, and sending a channel use request to the cooperative control module after detecting that the meteor trail channel appears; the cooperative control module is further configured to, after receiving a channel use request sent by the link transmission module in a certain communication direction, allow the channel use request if the channel is unoccupied, and give a channel use right to the link transmission module in the communication direction; and the link transmission module in each communication direction is used for carrying out communication by using the detected meteor trail channel after having the channel use right. The invention can ensure that the mutual cooperation and mutual noninterference are not caused when the link transmission is carried out in a plurality of communication directions.
Description
Technical Field
The invention relates to the technical field of meteor trail communication, in particular to a meteor trail communication device and a communication method.
Background
Meteor trail communication is burst communication, is long-distance communication by utilizing meteor trail to reflect radio waves, has the advantages of long communication distance, wide coverage range, strong confidentiality, strong anti-interference performance and the like, and has been widely applied to the communication field.
The transmission loss of meteor trail communication is about 180dB, and the communication distance can reach thousands of kilometers, so that a high-power transmitter and a directional antenna are required to obtain a certain system gain so as to ensure the transmission performance of meteor trail communication in the communication direction. When there is a need for communication in multiple directions, it is necessary to arrange high-power transmitters and directional antennas in multiple directions of communication. The half-duplex meteor trail communication equipment can only realize unidirectional communication, and the full-duplex meteor trail communication equipment can realize multidirectional communication by erecting a plurality of directional antennas.
When the meteor trail communication equipment is in the same place and needs multi-directional communication, if a plurality of half-duplex meteor trail communication equipment are simply used for splicing, the meteor trail communication equipment cannot be realized due to the same-frequency interference; if the multi-directional communication is realized by the full-duplex meteor trail communication device with a plurality of directional antennas, the transceiver filter needs to be added to avoid co-channel interference, but the communication device is huge. Thus, there is a need for an integrated meteor trail communication device that is capable of communicating in multiple communication directions and that avoids co-channel interference.
Disclosure of Invention
The embodiment of the invention provides a meteor trail communication device and a communication method, which are used for solving the problem that the current small meteor trail communication equipment has co-channel interference in the communication of a plurality of communication directions.
In a first aspect, an embodiment of the present invention provides a meteor trail communication device, including: the link transmission module is connected with the cooperative control module and used for transmitting the link signals in different communication directions;
the cooperative control module is used for sending channel use permission information to the link transmission modules in all communication directions;
the link transmission module in each communication direction is used for sending a detection signal to the air when the channel use permission information indicates that the channel use permission information is in a public detection period so as to detect whether a meteor trail channel appears or not, and sending a channel use request to the cooperative control module after detecting that the meteor trail channel appears;
the cooperative control module is further used for allowing the channel use request to give the channel use right to the link transmission module in the communication direction if the channel is unoccupied after receiving the channel use request sent by the link transmission module in the communication direction;
and the link transmission module in each communication direction is used for carrying out communication by using the detected meteor trail channel after having the channel use right.
In one possible implementation manner, the link transmission module in each communication direction is specifically configured to determine that a meteor trail channel appears after receiving the data of the opposite end.
In one possible implementation manner, the cooperative control module is specifically configured to, after receiving a channel usage request sent by a link transmission module in a certain communication direction, allow the channel usage request if none of the link transmission modules in other directions has a channel usage right, and give the channel usage right to the link transmission module in the communication direction.
In one possible implementation manner, the cooperative control module is further configured to, after receiving a channel use request sent by the link transmission module in a certain communication direction, disallow the channel use request if the link transmission module in any one of the other directions has a channel use right;
or, after receiving the channel use request sent by the link transmission module in a certain communication direction, if the link transmission module in any one of the other directions occupies the channel use right and the occupied time length exceeds the preset time length, the cooperative control module is further configured to withdraw the channel use right and give the channel use right to the link transmission module sending the channel use request; if the link transmission module in any one of the other directions occupies the channel use right and the occupied time period does not exceed the preset time period, the channel use request is not allowed.
In one possible implementation manner, the cooperative control module is further configured to, when detecting that the time period that the link transmission module in a certain direction occupies the channel usage right exceeds the preset time period, withdraw the channel usage right.
In one possible implementation, the link transmission module in each communication direction is further configured to use the detected meteor trail channel to perform communication after having the channel usage right, and to upload the channel usage right to the cooperative control module after communication is interrupted or communication is completed.
In one possible implementation, the cooperative control module is further configured to send a reference signal to the link transmission module in each communication direction;
and the link transmission module in each communication direction is specifically used for simultaneously sending detection signals to the air according to the reference signals so as to detect whether meteor trail channels appear.
In one possible implementation manner, the link transmission module in each communication direction is specifically configured to use the detected meteor trail channel to perform communication according to the transmission process of the link after having the channel usage right.
In one possible implementation, the link transmission module in each communication direction includes: the first port, the second port, the third port, the fourth port and the fifth port; the first port, the second port and the third port are all connected with the cooperative control module, the fourth port is connected with the modulation module, and the fifth port is connected with the demodulation module;
The first port is used for receiving a reference signal sent by the cooperative control module;
the second port is used for receiving the channel use permission information sent by the cooperative control module;
the third port is used for sending a channel use request to the cooperative control module;
the fourth port is used for sending signals to the modulation module;
the fifth port is used for receiving the signal sent by the demodulation module.
In a second aspect, an embodiment of the present invention provides a meteor trail communication method, including: the link transmission module is connected with the cooperative control module and used for transmitting the link signals in different communication directions;
the cooperative control module sends channel use permission information to the link transmission modules in all communication directions;
when the channel use permission information indicates a public detection period, the link transmission module in each communication direction sends a detection signal to the air to detect whether a meteor trail channel appears, and after detecting that the meteor trail channel appears, the link transmission module sends a channel use request to the cooperative control module;
after receiving a channel use request sent by a link transmission module in a certain communication direction, the cooperative control module allows the channel use request if the channel is unoccupied and gives the channel use right to the link transmission module in the communication direction;
And after the link transmission modules in each communication direction have the channel use right, the detected meteor trail channels are used for communication.
In one possible implementation, the sending a detection signal to the air to detect whether a meteor trail channel is present includes:
after receiving the data of the opposite terminal, determining that a meteor trail channel appears.
In one possible implementation manner, after receiving a channel usage request sent by a link transmission module in a certain communication direction, if a channel is unoccupied, the cooperative control module will allow the channel usage request, and give a channel usage right to the link transmission module in the communication direction, including:
after receiving the channel use request sent by the link transmission module in a certain communication direction, if none of the link transmission modules in other directions has the channel use right, the cooperative control module allows the channel use request and gives the channel use right to the link transmission module in the communication direction.
In one possible implementation, the meteor trail communication method further includes:
after receiving a channel use request sent by a link transmission module in a certain communication direction, if the link transmission module in any one of other directions has a channel use right, the cooperative control module does not allow the channel use request;
Or after receiving the channel use request sent by the link transmission module in a certain communication direction, if the link transmission module in any one of other directions occupies the channel use right and the occupied time exceeds the preset time, the cooperative control module withdraws the channel use right and gives the channel use right to the link transmission module sending the channel use request; if the link transmission module in any one of the other directions occupies the channel use right and the occupied time period does not exceed the preset time period, the channel use request is not allowed.
In one possible implementation, the meteor trail communication method further includes: and the cooperative control module recovers the channel use right when detecting that the occupied time length of the channel use right occupied by the link transmission module in a certain direction exceeds the preset time length.
In one possible implementation, after having the channel usage rights, the link transmission module in each communication direction uses the detected meteor trail channel to perform communication, including:
and after the link transmission module in each communication direction has the channel use right, the detected meteor trail channel is used for communication, and after the communication is interrupted or the communication is completed, the channel use right is submitted to the cooperative control module.
In one possible implementation, the meteor trail communication method further includes:
the cooperative control module also sends reference signals to the link transmission modules in all communication directions;
the link transmission module in each communication direction sends a detection signal to the air to detect whether a meteor trail channel appears when the channel use permission information indicates that the channel use permission information is in a common detection period, and the link transmission module comprises:
the link transmission modules in each communication direction simultaneously transmit detection signals to the air according to the reference signals so as to detect whether meteor trail channels appear.
In one possible implementation, the link transmission module in each communication direction includes: the first port, the second port, the third port, the fourth port and the fifth port; the first port, the second port and the third port are all connected with the cooperative control module, the fourth port is connected with the modulation module, and the fifth port is connected with the demodulation module;
the first port is used for receiving a reference signal sent by the cooperative control module;
the second port is used for receiving the channel use permission information sent by the cooperative control module;
the third port is used for sending a channel use request to the cooperative control module;
the fourth port is used for sending signals to the modulation module;
The fifth port is used for receiving the signal sent by the demodulation module.
In a third aspect, an embodiment of the present invention provides an electronic device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the method according to the above second aspect or any one of the possible implementations of the second aspect when the computer program is executed.
In a fourth aspect, embodiments of the present invention provide a computer readable storage medium storing a computer program which, when executed by a processor, implements the steps of the method of the second aspect or any one of the possible implementations of the second aspect.
The embodiment of the invention provides a meteor trail communication device, which is characterized in that a cooperative control module is used for sending channel use permission information to link transmission modules in all communication directions. And the link transmission module in each communication direction is used for sending a detection signal to the air when the channel use permission information indicates that the channel use permission information is in a public detection period so as to detect whether a meteor trail channel appears or not, and sending a channel use request to the cooperative control module after detecting that the meteor trail channel appears. And the cooperative control module is further used for allowing the channel use request to give the channel use right to the link transmission module in the communication direction if the channel is unoccupied after receiving the channel use request sent by the link transmission module in the communication direction. And finally, the link transmission modules in all communication directions are used for carrying out communication by using the detected meteor trail channels after having the channel use rights. The invention can automatically identify a plurality of communication directions by controlling the link transmission modules in the plurality of communication directions by using the cooperative control module, thereby realizing 'plug and play', and simultaneously ensuring that the link transmission modules in the plurality of communication directions are mutually cooperated and not interfered.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a meteor trail communication device according to an embodiment of the present invention;
FIG. 2 is a block diagram of a meteor trail communication device according to an embodiment of the present invention;
FIG. 3 is a flowchart of an implementation of a meteor trail communication method provided by an embodiment of the present invention;
fig. 4 is a schematic diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the following description will be made by way of specific embodiments with reference to the accompanying drawings.
As described in the background, currently, if a full duplex meteor trail communication device is used for multi-directional communication, a transceiver filter must be added to avoid co-channel interference, which results in a bulky communication device. If a plurality of half-duplex meteor trail communication devices are simply used for splicing to complete communication in a plurality of directions, multi-directional communication cannot be achieved due to co-channel interference caused by simultaneous operation of a plurality of devices. Therefore, there is a need for a meteor trail communication device that can satisfy the implementation of multi-directional communication at the same location.
In order to solve the problems in the prior art, the embodiment of the invention provides a meteor trail communication device and a communication method. The meteor trail communication device 100 provided in the embodiment of the present invention is first described below.
Referring to fig. 1, a meteor trail communication device 100 according to an embodiment of the present invention is shown, where the device includes: the cooperative control module 110 and the link transmission modules 120 with different communication directions connected with the cooperative control module 110, wherein the communication directions of each link transmission module 120 are different, so that meteor trail channels with different directions can be received conveniently.
The cooperative control module 110 is configured to send channel usage rights information to the link transmission module 120 in each communication direction. The link transmission module 120 in each communication direction is configured to send a detection signal to the air to detect whether a meteor trail channel is present when the channel usage rights information indicates that the channel usage rights information is in a common detection period, and send a channel usage request to the cooperative control module 110 after detecting that the meteor trail channel is present. The cooperative control module 110 is further configured to, after receiving a channel usage request sent by the link transmission module 120 in a certain communication direction, allow the channel usage request if the channel is unoccupied, and give the channel usage right to the link transmission module 120 in the communication direction. The link transmission module 120 in each communication direction is configured to use the detected meteor trail channel for communication after having the channel usage rights.
In this embodiment, the channel usage right information is used to instruct all link transmission modules to determine whether to transmit the probe signal, and the link transmission modules can transmit the probe signal to the air only when the channel usage right information indicates that the channel usage right information is in the common probe period. The common probe period indicates that all link transmission modules are not communicating, i.e., the channel is unoccupied, and the link transmission module 120 in each communication direction may transmit a probe signal to the air to detect the occurrence of a meteor trail channel.
The link transmission module 120 in each communication direction is specifically configured to determine that the meteor trail channel appears after receiving the data of the opposite terminal, and the link transmission module 120 that receives the data of the opposite terminal immediately sends a channel use request to the cooperative control module 110.
The cooperative control module 110 is specifically configured to determine whether the channel usage right is occupied after receiving a channel usage request sent by the link transmission module 120 in a certain communication direction, and if none of the link transmission modules in other directions has the channel usage right, allow the channel usage request, and give the channel usage right to the link transmission module in the communication direction. The invention can limit the channel use right to only one of the link transmission modules by adopting the cooperative control module 110, thereby ensuring that the communication between each link transmission module is not interfered.
After receiving the channel usage request sent by the link transmission module 120 in a certain communication direction, if the cooperative control module 110 determines that the link transmission module in any one of the other directions has the channel usage right, any one of the following two implementations may be adopted to determine whether to allow the channel usage request:
In the first implementation manner, after the link transmission modules 120 in multiple communication directions receive the peer data, the multiple link transmission modules 120 send a channel usage request to the cooperative control module 110. The cooperative control module 110 is further configured to determine, after receiving a channel usage request sent by the link transmission module 120 in a certain communication direction, whether the channel usage right is occupied, and if the link transmission module in any one of the other directions has the channel usage right, not allow the channel usage request, and need to wait for the link transmission module having the channel usage right to complete communication.
In the second implementation manner, the cooperative control module 110 is further configured to, after receiving a channel usage request sent by the link transmission module 120 in a certain communication direction, if the link transmission module in any one of other directions occupies a channel usage right, and when the occupied time period exceeds a preset time period, withdraw the channel usage right, and give the channel usage right to the link transmission module that sends the channel usage request; if the link transmission module in any one of the other directions occupies the channel use right and the occupied time period does not exceed the preset time period, the channel use request is not allowed, and the link transmission module with the channel use right needs to wait for the communication completion of the link transmission module with the channel use right.
In some embodiments, the cooperative control module 110 may also avoid long-term occupation of the channel usage right granted once by a certain link transmission module by setting a preset duration. Illustratively, when the occupied duration of the channel usage right occupied by the link transmission module in a certain direction exceeds a preset duration, the cooperative control module 110 withdraws the channel usage right from the link transmission module when detecting that the occupied channel usage right exceeds the preset duration.
In some embodiments, a sounding reference generator is provided within the cooperative control module 110 and is operable to send reference signals to the link transmission module 120 in each communication direction. The detection reference generator generates a reference signal at a set preset time interval.
In this embodiment, the link transmission module 120 in each communication direction simultaneously sends a detection signal to the air according to the reference signal to detect whether a meteor trail channel is present. Therefore, all link transmission modules can transmit detection signals to the air at the same time in a public detection period, and at the stage, all link transmission modules can only transmit the detection signals and cannot communicate, so that no other interference is caused when the detection signals are transmitted.
In some embodiments, the link transmission module 120 in each communication direction is further configured to use the detected meteor trail channel to perform communication after having the channel usage right, and to upload the channel usage right to the cooperative control module 110 after the communication is interrupted or the communication is completed, so as to ensure redistribution of the channel usage right and ensure normal performance of the communication.
In addition, the link transmission module 120 in each communication direction is further configured to transmit the detection information according to the reference signal, instead of using the common detection period after having the channel usage right, and perform communication according to the transmission process of the link by using the detected meteor trail channel until the channel terminal or after the communication is finished, and upload the channel usage right to the cooperative control module 110.
Specifically, as shown in fig. 2, the link transmission module 120 in each communication direction includes: first port 1, second port 2 and third port 3, fourth port 4 and fifth port 5. The first port 1, the second port 2 and the third port 3 are all connected with the cooperative control module 110 through cooperative control connectors, the fourth port 4 is connected with the modulation module, and the fifth port 5 is connected with the demodulation module. A probe reference generator inside the cooperative control module 110 is connected to the first port 1 on the link transmission module 120 in each communication direction for transmitting a reference signal to the first port.
The first port 1 is used for receiving a reference signal sent by the cooperative control module 110, the second port 2 is used for receiving channel use permission information sent by the cooperative control module, the third port 3 is used for sending a channel use request to the cooperative control module, and the fourth port 4 is used for sending a signal to the modulation module; the fifth port 5 is used for receiving the signal sent by the demodulation module.
The following describes the workflow of the meteor trail communication device shown in fig. 2 by taking the specific structure as an example:
the cooperative control module 110 is connected to the link transmission modules 120 in a plurality of communication directions through a cooperative control connector, where the link transmission module 120 in each communication direction is connected to a modulation module, a demodulation module, a transmitter, a transceiver switching module, and a receiver, respectively, to form a single-direction communication device.
The sounding reference generator in the cooperative control module 110 is configured to generate a reference signal at a set time interval, send the reference signal to the first port 1 in the link transmission module 120 in each communication direction, and send the channel usage right information to the second port 2 in the link transmission module 120 in each communication direction.
The link transmission module 120 in each communication direction is configured to identify channel usage rights information, and send a detection signal to the air according to a reference signal simultaneously when the channel usage rights information indicates that the channel usage rights information is in a common detection period, so as to detect whether a meteor trail channel is present. After the link transmission module 120 in each communication direction receives the data of the opposite end, it can determine that the meteor trail channel appears. The link transmission module 120, which detects the occurrence of the meteor trail channel, transmits a channel use request to the cooperative control module 110 through the third port 3, requesting to use the channel for communication.
The cooperative control module 110 is configured to, after receiving a channel usage request sent by the link transmission module 120 in a certain communication direction, check whether a channel is occupied, and if the channel is unoccupied, allow the channel usage request, and give a channel usage right to the link transmission module in the communication direction. When it is checked that the third port 3 of the link transmission module in a certain direction connected thereto has the channel use right or the third port 3 of the link transmission module in a certain direction has the channel use right and the occupied time period does not exceed the preset time period, the channel use request is not allowed, and it is necessary to wait for the channel to be allocated. When it is detected that the link transmission module in any one of the other directions occupies the channel usage right and the occupied time period exceeds the preset time period, the cooperative control module 110 is configured to reclaim the channel usage right and give the channel usage right to the link transmission module that sends the channel usage request.
The cooperative control module 110 is further configured to, when detecting that the occupied duration of the channel usage right occupied by the link transmission module in a certain direction exceeds a preset duration, reclaim the channel usage right in the direction.
The link transmission module 120 in each communication direction is configured to communicate using the detected meteor trail channel according to the transmission process of the link after having the channel usage right, and to upload the channel usage right to the cooperative control module 110 after the communication is interrupted or the communication is completed.
Specifically, the link transmission module 120, the modulation module and the demodulation module in each communication direction are integrated on a printed board with the length of 140×140 mm, and the printed board is installed in a standard case with 19 inches to form a link transmission unit. The front panel of the case is provided with a monitoring key and a liquid crystal display, and the rear panel of the case is provided with a service port connector, a cooperative control connector, a radio frequency signal connector and a power input end socket.
The transmitter, the receiver and the receiving and transmitting switching module are respectively integrated in 3 metal shielding boxes and are uniformly arranged in a 19-inch standard chassis to form a radio frequency amplifying unit, and a radio frequency signal connector and a power input end socket are arranged on the rear panel of the chassis.
The cooperative control module is integrated on a printed board with the length of 140 multiplied by 140 mm, and the printed board is arranged in a 19-inch standard chassis to form a cooperative control unit. The front panel of the case is provided with a monitoring key and a liquid crystal display, and the rear panel of the case is provided with a cooperative control connector and a power input end socket. And forming a complete meteor trail communication device through the three cases.
The meteor trail communication device provided by the invention is characterized in that firstly, the cooperative control module is used for sending channel use permission information to the link transmission modules in all communication directions. And the link transmission module in each communication direction is used for sending a detection signal to the air when the channel use permission information indicates that the channel use permission information is in a public detection period so as to detect whether a meteor trail channel appears or not, and sending a channel use request to the cooperative control module after detecting that the meteor trail channel appears. And the cooperative control module is further used for allowing the channel use request to give the channel use right to the link transmission module in the communication direction if the channel is unoccupied after receiving the channel use request sent by the link transmission module in the communication direction. And finally, the link transmission modules in all communication directions are used for carrying out communication by using the detected meteor trail channels after having the channel use rights. The invention can automatically identify a plurality of communication directions by controlling the link transmission modules in the plurality of communication directions by using the cooperative control module, thereby realizing 'plug and play', and simultaneously ensuring that the link transmission modules in the plurality of communication directions are mutually cooperated and not interfered.
The meteor trail communication device provided by the invention solves the problem of co-location interference when meteor trail communication works in a plurality of communication directions simultaneously through real-time control of the multi-directional transmission link. In addition, the device is flexible in use, can be used in a single communication direction or multiple communication directions, and has the characteristics of high integration degree, flexible configuration, stable and reliable performance and the like.
Based on the meteor trail communication device provided by the embodiment, correspondingly, the invention also provides a meteor trail communication method. Please refer to the following examples.
The execution subject of the meteor trail communication method may be a meteor trail communication device, which may be an electronic device having a processor and a memory, such as a mobile electronic device or a non-mobile electronic device. The embodiment of the present invention is not particularly limited.
Referring to fig. 3, a meteor trail communication method provided by the embodiment of the present invention includes a cooperative control module and a plurality of link transmission modules in different communication directions connected to the cooperative control module, where the implementation flow is as follows in detail:
step S310, the cooperative control module sends channel use permission information to the link transmission modules in all communication directions.
The channel usage right information is used for all the link transmission modules to judge whether to send the detection signals, and the link transmission modules can send the detection signals to the air only when the channel usage right information indicates that the detection signals are in a common detection period.
In some embodiments, to ensure that all link transmission modules in each communication direction transmit probe signals over the air simultaneously, the cooperative control module may also transmit reference signals to the link transmission modules in each communication direction.
Step S320, when the channel use permission information indicates that the channel use permission information is in a public detection period, the link transmission module in each communication direction sends a detection signal to the air to detect whether a meteor trail channel appears, and after detecting that the meteor trail channel appears, the link transmission module sends a channel use request to the cooperative control module.
When the channel use permission information indicates that the channel use permission information is in a public detection period, the link transmission modules in all directions can send detection signals to the air so as to detect whether meteor trail channels appear.
In order to avoid interference of signal receiving and transmitting, in a common detection period, the link transmission modules in each communication direction can simultaneously send detection signals to the air according to the reference signals so as to detect whether meteor trail channels appear or not and avoid interference among signals. At this stage, all link transmission modules can only transmit the detection signal and cannot communicate, so that no other interference is ensured when the detection signal is transmitted.
Specifically, when the link transmission module in each communication direction receives the data of the opposite end, the occurrence of the meteor trail channel can be determined, and after the occurrence of the meteor trail channel is detected, a channel use request can be sent to the cooperative control module.
Step S330, after receiving the channel usage request sent by the link transmission module in a certain communication direction, if the channel is unoccupied, the cooperative control module will allow the channel usage request, and give the channel usage right to the link transmission module in the communication direction.
Specifically, after receiving a channel use request sent by a link transmission module in a certain communication direction, the cooperative control module needs to determine whether a channel use right is occupied, and if none of the link transmission modules in other directions has the channel use right, the cooperative control module will allow the channel use request and give the channel use right to the link transmission module in the communication direction. It should be noted that, in the present invention, by adopting the cooperative control module to limit the channel usage right to only one of the link transmission modules in one direction, the communication between each link transmission module is ensured not to be interfered.
After receiving the channel usage request sent by the link transmission module 120 in a certain communication direction, if the cooperative control module 110 determines that the link transmission module in any one of the other directions has the channel usage right, any one of the following two implementations may be adopted to determine whether to allow the channel usage request:
In a first implementation manner, after the link transmission modules in multiple communication directions receive the peer data successively, multiple link transmission modules send a channel use request to the cooperative control module. The cooperative control module can judge whether the channel use right is occupied after receiving the channel use request sent by the link transmission module in a certain communication direction, if the link transmission module in any direction of other directions has the channel use right, the channel use request is not allowed, and the communication of the link transmission module having the channel use right needs to be waited for completion.
In a second implementation manner, after receiving a channel use request sent by a link transmission module in a certain communication direction, if the link transmission module in any one of other directions occupies a channel use right, and the occupied time period exceeds a preset time period, the cooperative control module also withdraws the channel use right, and gives the channel use right to the link transmission module sending the channel use request; if the link transmission module in any one of the other directions occupies the channel use right and the occupied time period does not exceed the preset time period, the channel use request is not allowed, and the link transmission module with the channel use right needs to wait for the communication completion of the link transmission module with the channel use right.
In some embodiments, when the occupied duration of the channel usage right occupied by the link transmission module in a certain direction exceeds a preset duration, the cooperative control module may withdraw the channel usage right from the link transmission module when detecting that the occupied channel usage right exceeds the preset duration.
In some embodiments, the link transmission module in each communication direction may use the detected meteor trail channel to communicate after having the channel usage right, and upload the channel usage right to the cooperative control module after the communication is interrupted or the communication is completed, so as to ensure redistribution of the channel usage right and ensure normal communication.
And step 340, after the link transmission module in each communication direction has the channel use right, the detected meteor trail channel is used for communication.
Specifically, the link transmission module in each communication direction can use the detected meteor trail channel to communicate after possessing the channel use right, and can submit the channel use right to the cooperative control module after communication interruption or communication completion, thereby ensuring the redistribution of the channel use right and ensuring normal communication.
In some embodiments, the link transmission module in each communication direction is configured to, after having the channel usage right, not transmit the probe information according to the reference signal in the common probe period, but according to the transmission process of the link, use the detected meteorologic trail channel to perform communication until the channel terminal or after the communication is finished, upload the channel usage right to the cooperative control module.
Specifically, the link transmission module in each communication direction includes: the first port, the second port, the third port, the fourth port and the fifth port; the first port, the second port and the third port are all connected with the cooperative control module through cooperative control connectors, the fourth port is connected with the modulation module, and the fifth port is connected with the demodulation module. The first port is used for receiving the reference signal sent by the cooperative control module, the second port is used for receiving the channel use permission information sent by the cooperative control module, the third port is used for sending a channel use request to the cooperative control module, the fourth port is used for sending a signal to the modulation module, and the fifth port is used for receiving the signal sent by the demodulation module.
According to the meteor trail communication method provided by the invention, firstly, the cooperative control module sends channel use permission information to the link transmission modules in all communication directions. And then, when the channel use permission information indicates that the channel use permission information is in a public detection period, the link transmission module in each communication direction sends a detection signal to the air to detect whether a meteor trail channel appears, and after detecting that the meteor trail channel appears, the link transmission module sends a channel use request to the cooperative control module. Then, after receiving the channel use request sent by the link transmission module in a certain communication direction, the cooperative control module will allow the channel use request if the channel is unoccupied, and give the channel use right to the link transmission module in the communication direction. And finally, after the link transmission modules in all communication directions have the channel use right, the detected meteor trail channels are used for communication. The invention can automatically identify a plurality of communication directions by controlling the link transmission modules in the plurality of communication directions by using the cooperative control module, thereby realizing 'plug and play', and simultaneously ensuring that the link transmission modules in the plurality of communication directions are mutually cooperated and not interfered.
It should be understood that the sequence number of each step in the foregoing embodiment does not mean that the execution sequence of each process should be determined by the function and the internal logic, and should not limit the implementation process of the embodiment of the present invention.
Fig. 4 is a schematic diagram of an electronic device according to an embodiment of the present invention. As shown in fig. 4, the electronic apparatus 4 of this embodiment includes: a processor 40, a memory 41 and a computer program 42 stored in the memory 41 and executable on the processor 40. The steps of the various meteor trail communication method embodiments described above, such as steps 310 through 340 shown in fig. 3, are implemented by the processor 40 when executing the computer program 42. Alternatively, the processor 40 may perform the functions of the modules of the apparatus embodiments described above, such as the functions of the modules 110-120 of fig. 1, when executing the computer program 42.
Illustratively, the computer program 42 may be partitioned into one or more modules that are stored in the memory 41 and executed by the processor 40 to complete the present invention. The one or more modules may be a series of computer program instruction segments capable of performing the specified functions, which instruction segments describe the execution of the computer program 42 in the electronic device 4. For example, the computer program 42 may be partitioned into modules 110 through 120 shown in FIG. 1.
The electronic device 4 may include, but is not limited to, a processor 40, a memory 41. It will be appreciated by those skilled in the art that fig. 4 is merely an example of the electronic device 4 and is not meant to be limiting of the electronic device 4, and may include more or fewer components than shown, or may combine certain components, or different components, e.g., the electronic device may further include an input-output device, a network access device, a bus, etc.
The processor 40 may be a central processing unit (Central Processing Unit, CPU), other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field-programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 41 may be an internal storage unit of the electronic device 4, such as a hard disk or a memory of the electronic device 4. The memory 41 may be an external storage device of the electronic device 4, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card) or the like, which are provided on the electronic device 4. Further, the memory 41 may also include both an internal storage unit and an external storage device of the electronic device 4. The memory 41 is used for storing the computer program and other programs and data required by the electronic device. The memory 41 may also be used for temporarily storing data that has been output or is to be output.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, the specific names of the functional units and modules are only for distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working process of the units and modules in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus/electronic device and method may be implemented in other manners. For example, the apparatus/electronic device embodiments described above are merely illustrative, e.g., the division of the modules or units is merely a logical function division, and there may be additional divisions in actual implementation, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection via interfaces, devices or units, which may be in electrical, mechanical or other forms.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated modules/units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the present invention may implement all or part of the flow of the method of the above embodiment, or may be implemented by instructing related hardware by a computer program, where the computer program may be stored in a computer readable storage medium, and the computer program may implement the steps of each of the meteor trail communication method embodiments described above when executed by a processor. Wherein the computer program comprises computer program code which may be in source code form, object code form, executable file or some intermediate form etc. The computer readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth. It should be noted that the computer readable medium may include content that is subject to appropriate increases and decreases as required by jurisdictions in which such content is subject to legislation and patent practice, such as in certain jurisdictions in which such content is not included as electrical carrier signals and telecommunication signals.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in the scope of the present invention.
Claims (10)
1. A meteor trail communication device, comprising: the system comprises a cooperative control module and a plurality of link transmission modules in different communication directions, wherein the link transmission modules are connected with the cooperative control module;
the cooperative control module is used for sending channel use permission information to the link transmission modules in all communication directions;
the link transmission module in each communication direction is used for sending a detection signal to the air when the channel use permission information indicates that the channel use permission information is in a public detection period so as to detect whether a meteor trail channel appears or not, and sending a channel use request to the cooperative control module after detecting that the meteor trail channel appears;
The cooperative control module is further configured to, after receiving a channel use request sent by the link transmission module in a certain communication direction, allow the channel use request if the channel is unoccupied, and give a channel use right to the link transmission module in the communication direction;
and the link transmission module in each communication direction is used for carrying out communication by using the detected meteor trail channel after having the channel use right.
2. The meteorologic trail communication device of claim 1, wherein the link transmission module in each communication direction is specifically configured to determine that a meteorologic trail channel appears after receiving data of an opposite end.
3. The meteor trail communication device of claim 1, wherein the cooperative control module is specifically configured to, after receiving a channel usage request sent by a link transmission module in a certain communication direction, allow the channel usage request if none of the link transmission modules in other directions has a channel usage right, and give the channel usage right to the link transmission module in the communication direction.
4. The meteor trail communication device of claim 3,
the cooperative control module is further configured to, after receiving a channel use request sent by the link transmission module in a certain communication direction, disallow the channel use request if the link transmission module in any one of the other directions has a channel use right;
Or, the cooperative control module is further configured to, after receiving a channel use request sent by the link transmission module in a certain communication direction, withdraw the channel use right if the link transmission module in any one of the other directions occupies the channel use right and the occupied time period exceeds a preset time period, and give the channel use right to the link transmission module sending the channel use request; and if the link transmission module in any one of the other directions occupies the channel use right and the occupied time period does not exceed the preset time period, not allowing the channel use request.
5. The meteor trail communication device of claim 1, wherein the cooperative control module is further configured to reclaim the channel usage right if it is detected that the occupation duration of the channel usage right occupied by the link transmission module in a certain direction exceeds a preset duration.
6. The meteor trail communication device of claim 1, wherein the link transmission module in each communication direction is further configured to use the detected meteor trail channel for communication after having the channel usage rights, and to upload the channel usage rights to the cooperative control module after communication interruption or communication completion.
7. The meteor trail communication device of claim 1, wherein the cooperative control module is further configured to send a reference signal to a link transmission module in each communication direction;
and the link transmission module in each communication direction is specifically used for simultaneously sending detection signals to the air according to the reference signals so as to detect whether meteor trail channels appear.
8. The meteorologic trail communication device of claim 7, wherein the link transmission module in each communication direction is specifically configured to use the detected meteorologic trail channel to communicate according to the transmission process of the link after having the channel usage right.
9. The meteor trail communication device of claim 1, wherein the link transmission module in each communication direction comprises: the first port, the second port, the third port, the fourth port and the fifth port; the first port, the second port and the third port are all connected with the cooperative control module, the fourth port is connected with the modulation module, and the fifth port is connected with the demodulation module;
the first port is used for receiving a reference signal sent by the cooperative control module;
The second port is used for receiving the channel use permission information sent by the cooperative control module;
the third port is used for sending a channel use request to the cooperative control module;
the fourth port is used for sending signals to the modulation module;
the fifth port is used for receiving the signal sent by the demodulation module.
10. A meteor trail communication method, comprising:
the cooperative control module sends channel use permission information to the link transmission modules in all communication directions;
when the channel use permission information indicates a public detection period, a link transmission module in each communication direction sends a detection signal to the air to detect whether a meteor trail channel appears, and after detecting that the meteor trail channel appears, a channel use request is sent to the cooperative control module;
after receiving a channel use request sent by a link transmission module in a certain communication direction, the cooperative control module allows the channel use request if a channel is unoccupied and gives a channel use right to the link transmission module in the communication direction;
and after the link transmission modules in each communication direction have the channel use right, the detected meteor trail channels are used for communication.
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