CN114040486B - Burst carrier lossless AUPC (autonomous Underwater vehicle) adjusting method and device for TDMA (time division multiple Access) satellite communication system - Google Patents
Burst carrier lossless AUPC (autonomous Underwater vehicle) adjusting method and device for TDMA (time division multiple Access) satellite communication system Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/146—Uplink power control
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- H—ELECTRICITY
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- 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
- H04B7/1851—Systems using a satellite or space-based relay
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
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Abstract
A method and a device for adjusting burst carrier lossless AUPC of a TDMA satellite communication system, wherein the method comprises the following steps: periodically acquiring the Es/N0 actual value of the burst carrier wave and performing smoothing treatment; deciding whether adjustment is needed according to the smoothed Es/N0 value and the corresponding Es/N0 target value: if the adjustment is not needed, the original time slot waveform and the power are kept unchanged, the original time slot plan is issued to the remote station through the TDM carrier, the remote station receives the original time slot plan, and the burst carrier is transmitted according to the original time slot waveform and the power; if the adjustment is needed, planning an idle time slot as an adjustment time slot for adjusting waveform and power, if the idle time slot is not available, planning the idle time slot after the current service time slot plan is issued, issuing the adjustment time slot plan to a remote station through a TDM carrier, receiving the adjustment time slot plan by the remote station, and transmitting burst carrier temporarily at the adjustment time slot according to the waveform and the power of the adjustment time slot. The technical problem of ensuring business nondestructive in the process of adjusting a time slot AUPC by a TDMA satellite communication system is solved.
Description
Technical Field
The invention belongs to the technical field of satellite communication, relates to an automatic uplink power control technology of a TDMA satellite communication system, and particularly relates to a method and a device for adjusting burst carrier lossless AUPC of the TDMA satellite communication system.
Background
The communication quality of satellite communication systems is susceptible to air interface channels. Extreme weather conditions such as heavy rain, hail, heavy fog and the like and special terrain effects such as mountain canyons and the like are liable to cause poor transmission quality and even link interruption. On the one hand, in order to improve the communication quality and capacity, the industry mostly adopts an automatic uplink power control technology, namely an AUPC technology; on the other hand, the air channel of the satellite network communication TDMA system is changed frequently, and various kinds of interference are often not approximate. In order to resist channel interference, most of the industry adopts a mode of adjusting the transmission waveform and power of a time slot, but the problem of lossless transmission of service in the time slot adjustment process needs to be solved.
The prior art CN111200458A discloses an automatic control method and system based on satellite link communication power and modulation mode, wherein the method queries Modcod list items to automatically adjust code rate and transmitting power by receiving the ES/N0 actual value periodically collected and fed back by a remote station so as to enable the link to be in an optimal state. The method is not suitable for adjusting the transmitting power of the burst carrier of the remote station in a TDMA satellite communication system.
The prior art CN111787604a discloses a control method, a terminal and a storage medium for uplink power. According to the method, the actual distance between the terminal and the reference network node is obtained, and uplink power sent by the terminal is adjusted based on the magnitude relation between the actual distance and the preset distance. The method adopts satellite ephemeris information and positioning information of the terminal, application scenes for acquiring the ephemeris information in advance are limited, and acquiring the positioning information of the terminal increases the manufacturing cost of the terminal.
Disclosure of Invention
Aiming at the defects of the related prior art, the invention provides a method and a device for adjusting the burst carrier lossless AUPC of a TDMA satellite communication system, which are used for solving the technical problem of ensuring service lossless in the process of adjusting the time slot AUPC of the satellite TDMA satellite communication system.
In order to achieve the object of the invention, the following scheme is adopted:
a burst carrier lossless AUPC adjusting method for a TDMA satellite communication system comprises the following steps:
periodically acquiring the Es/N0 actual value of the received burst carrier wave and performing smoothing treatment;
deciding whether to adjust the waveform and power transmitted by the remote station according to the smoothed Es/N0 value and the Es/N0 target value corresponding to the current burst carrier waveform obtained by looking up the table:
if the smoothed Es/N0 value is greater than or equal to the corresponding Es/N0 target value, the original time slot waveform and power are not required to be adjusted, the original time slot plan is issued to the remote station through the TDM carrier wave, so that when the remote station receives the original time slot plan, the burst carrier wave is transmitted according to the original time slot waveform and power;
if the smoothed Es/N0 value is smaller than the corresponding Es/N0 target value, an idle time slot is planned to be used as an adjustment time slot for adjusting waveform and power, if the idle time slot is not available, the idle time slot is planned after the current service time slot plan is waited to be issued, the adjustment time slot plan is issued to the remote station through the TDM carrier, so that when the remote station receives the adjustment time slot plan, the burst carrier is transmitted temporarily at the adjustment time slot moment according to the waveform and power of the adjustment time slot.
E S The actual value of/N0 varies dynamically depending on the waveform and power of the current remote station transmitting burst carrier.
The transmission of the original time slot plan/adjustment time slot plan to the remote station via the TDM carrier is performed by encapsulating the traffic signaling data and the original time slot plan/adjustment time slot plan data into a predetermined frame format for transmission with a continuous carrier modulation.
A burst carrier lossless AUPC adjusting device for a TDMA satellite communication system is applied to a master station of the TDMA satellite communication system, and comprises:
the backward TDMA carrier receiving module is used for periodically acquiring the Es/N0 actual value of the received burst carrier and performing smoothing treatment, deciding whether to adjust the waveform and power transmitted by the remote station according to the smoothed Es/N0 value and the Es/N0 target value corresponding to the current burst carrier waveform obtained by looking up a table, if the smoothed Es/N0 value is greater than or equal to the corresponding Es/N0 target value, the adjustment is not needed, and if the smoothed Es/N0 value is smaller than the corresponding Es/N0 target value, the adjustment is needed;
the time slot planning module is used for planning according to the original time slot plan to keep the original time slot waveform and power unchanged when the decision of the returning TDMA carrier receiving module is that adjustment is not needed, planning an idle time slot to be used as an adjustment time slot for adjusting the waveform and the power when the decision of the returning TDMA carrier receiving module is that adjustment is needed, and planning the idle time slot after the current service time slot plan is issued if the idle time slot is not available;
the master station data link processing module is used for packaging the service signaling data and the backward time slot plan data into a preset frame format, wherein the backward time slot plan is an original time slot plan or an adjusted time slot plan;
the TDM transmitting module is used for carrying out continuous carrier modulation transmission on the data frames processed by the data link processing module so as to realize the purpose of transmitting an original time slot plan/an adjustment time slot plan to a remote station through a TDM carrier; specifically, the TDM carrier transmits the original time slot plan to the remote station, so that when the remote station receives the original time slot plan, the remote station transmits the burst carrier according to the original time slot waveform and power, or transmits the adjusting time slot plan to the remote station through the TDM carrier, so that when the remote station receives the adjusting time slot plan, the remote station temporarily transmits the burst carrier at the adjusting time slot according to the waveform and power of the adjusting time slot.
A burst carrier lossless AUPC adjusting method for a TDMA satellite communication system comprises the following steps:
receiving and demodulating a TDM carrier transmitted by a master station, and restoring effective data information containing a return time slot plan carried in the TDM carrier;
analyzing a return time slot plan;
if the backward time slot plan is the original time slot plan, transmitting burst carrier according to the original time slot waveform and power;
if the return time slot plan is the adjustment time slot plan, transmitting burst carrier waves temporarily at the adjustment time slot moment according to the waveform and the power of the adjustment time slot;
by transmitting a burst carrier to cause the primary station to: periodically acquiring the Es/N0 actual value of the received burst carrier wave, performing smoothing treatment, and deciding whether to adjust the waveform and power transmitted by the remote station according to the smoothed Es/N0 value and the Es/N0 target value corresponding to the current burst carrier wave waveform obtained by looking up a table: if the smoothed Es/N0 value is greater than or equal to the corresponding Es/N0 target value, the adjustment is not needed, the original time slot waveform and the power are kept unchanged, and the original time slot plan is issued through the TDM carrier; if the smoothed Es/N0 value is smaller than the corresponding Es/N0 target value, the idle time slot is required to be adjusted, the idle time slot is planned to be used as an adjusting time slot for adjusting waveform and power, if the idle time slot does not exist, the idle time slot is planned after the current service time slot plan is waited to be issued, and the adjusting time slot plan is issued through the TDM carrier.
When transmitting burst carrier, according to the original time slot plan/adjusting time slot plan, the business signaling data is sealed into a data frame with a preset return format, the frame format carries the sending waveform and power information of the time slot, and then the data frame is modulated and transmitted by the burst carrier according to the sending waveform and power information.
A burst carrier lossless AUPC adjusting device for a TDMA satellite communication system is applied to a remote station of the TDMA satellite communication system, and comprises:
the forward TDM carrier receiving module is used for receiving and demodulating the TDM carrier issued by the master station and restoring the effective data information containing the backward time slot plan carried in the TDM carrier;
the time slot analysis module is used for analyzing the return time slot plan;
the remote station data link processing module is used for sealing the business signaling data into a data frame with a preset backward format after the backward time slot plan is analyzed by the time slot analyzing module to be the original time slot plan/the adjusted time slot plan, and the frame format carries the transmission waveform and the power information corresponding to the original time slot plan/the adjusted time slot plan;
the TDMA transmitting module is used for carrying out burst carrier modulation transmission on the data frame according to the transmission waveform and the power information, specifically, when the time slot analyzing module analyzes that the backward time slot plan is the original time slot plan, the burst carrier is transmitted according to the original time slot waveform and the power; when the reverse time slot plan is analyzed as the adjustment time slot plan, the burst carrier wave is transmitted temporarily at the adjustment time slot moment according to the waveform and the power of the adjustment time slot; by transmitting a burst carrier to cause the primary station to: periodically acquiring the Es/N0 actual value of the received burst carrier wave, performing smoothing treatment, and deciding whether to adjust the waveform and power transmitted by the remote station according to the smoothed Es/N0 value and the Es/N0 target value corresponding to the current burst carrier wave waveform obtained by looking up a table: if the smoothed Es/N0 value is greater than or equal to the corresponding Es/N0 target value, the adjustment is not needed, the original time slot waveform and the power are kept unchanged, and the original time slot plan is issued through the TDM carrier; if the smoothed Es/N0 value is smaller than the corresponding Es/N0 target value, the idle time slot is required to be adjusted, the idle time slot is planned to be used as an adjusting time slot for adjusting waveform and power, if the idle time slot does not exist, the idle time slot is planned after the current service time slot plan is waited to be issued, and the adjusting time slot plan is issued through the TDM carrier.
A burst carrier lossless AUPC adjusting method for a TDMA satellite communication system comprises the following steps:
the master station periodically acquires the Es/N0 actual value of the received burst carrier wave and performs smoothing treatment;
the master station decides whether to adjust the waveform and power transmitted by the remote station according to the smoothed Es/N0 value and the Es/N0 target value corresponding to the current burst carrier waveform obtained by looking up the table:
if the smoothed Es/N0 value is greater than or equal to the corresponding Es/N0 target value, the adjustment is not needed, the original time slot waveform and the power are kept unchanged, and the master station issues an original time slot plan to the remote station through the TDM carrier;
if the smoothed Es/N0 value is smaller than the corresponding Es/N0 target value, an idle time slot is required to be adjusted, planning an idle time slot to be used as an adjusting time slot for adjusting waveform and power, if the idle time slot does not exist, planning the idle time slot after waiting for the completion of the current service time slot plan delivery, and the master station delivering the adjusting time slot plan to the remote station through the TDM carrier;
the remote station demodulates the TDM carrier wave issued by the master station, and restores the effective data information containing the backward time slot plan carried in the TDM carrier wave;
the remote station parses the return slot plan:
if the backward time slot plan is the original time slot plan, the remote station transmits burst carrier waves according to the original time slot waveform and power;
if the return time slot plan is the adjustment time slot plan, the remote station temporarily transmits burst carriers at the adjustment time slot according to the waveform and power of the adjustment time slot.
A burst carrier lossless AUPC adjusting device of a TDMA satellite communication system comprises a backward TDMA carrier receiving module, a time slot planning module, a master station data link processing module, a TDM transmitting module which are arranged at a master station, a forward TDM carrier receiving module, a time slot analyzing module, a remote station data link processing module and a TDMA transmitting module which are arranged at a remote station;
the backward TDMA carrier receiving module is used for periodically acquiring the Es/N0 actual value of the received burst carrier and performing smoothing treatment, deciding whether to adjust the waveform and power transmitted by the remote station according to the smoothed Es/N0 value and the Es/N0 target value corresponding to the current burst carrier waveform obtained by looking up a table, if the smoothed Es/N0 value is greater than or equal to the corresponding Es/N0 target value, the adjustment is not needed, and if the smoothed Es/N0 value is smaller than the corresponding Es/N0 target value, the adjustment is needed;
the time slot planning module is used for planning services and a return time slot plan, when the return TDMA carrier receiving module decides that adjustment is not needed, the original time slot plan which keeps the original time slot waveform and power unchanged is used as the return time slot plan, when the return TDMA carrier receiving module decides that adjustment is needed, an idle time slot is planned to be used as an adjustment time slot for adjusting the waveform and the power, the adjustment time slot is used as the return time slot plan, and if no idle time slot exists, the idle time slot is planned after the current service time slot plan is issued;
the master station data link processing module is used for packaging the service signaling data and the backward time slot plan data into a preset frame format;
the TDM transmitting module is used for carrying out continuous carrier modulation transmission on the data frames processed by the data link processing module so as to realize the purpose of issuing a return time slot plan to a remote station through a TDM carrier;
the forward TDM carrier receiving module is used for receiving and demodulating the TDM carrier issued by the master station and restoring the effective data information containing the backward time slot plan carried in the TDM carrier;
the time slot analysis module is used for analyzing the return time slot plan;
the remote station data link processing module is used for sealing the business signaling data into a data frame with a preset backward format after the backward time slot plan is analyzed by the time slot analyzing module to be the original time slot plan/the adjusted time slot plan, and the frame format carries the transmission waveform and the power information corresponding to the original time slot plan/the adjusted time slot plan;
the TDMA transmitting module is used for carrying out burst carrier modulation transmission on the data frame according to the transmission waveform and the power information, and transmitting burst carriers according to the original time slot waveform and the power when the backward time slot plan is the original time slot plan; and if the return time slot plan is the adjustment time slot plan, transmitting the burst carrier at the adjustment time slot moment according to the waveform and the power of the adjustment time slot.
The invention has the beneficial effects that:
1. in a TDMA satellite communication system, the application of the burst carrier AUPC technology effectively improves the transmission performance of the system;
2. the introduction of special adjustment time slots ensures the lossless transmission of service when the waveform and power of the system time slots are adjusted.
Drawings
Fig. 1 is a schematic diagram of a TDMA satellite communication system according to an embodiment of the present application.
Fig. 2 is a schematic diagram of the overall structure of a burst carrier lossless AUPC adjustment device of a TDMA satellite communication system according to an embodiment of the present application.
Fig. 3 is a schematic diagram of a burst carrier lossless AUPC adjustment method for a whole TDMA satellite communication system according to an embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings, but the described embodiments of the present invention are some, but not all embodiments of the present invention.
The TDMA satellite communication system comprises a main station which is a fixed station and adopts a large-caliber antenna and a large-power amplifier; the remote station is a fixed station or a mobile station, and adopts a smaller-caliber antenna and a smaller-power amplifier; the communication satellite is a transparent forwarding satellite as shown in fig. 1.
An aspect of the embodiments of the present application provides a method for adjusting burst carrier lossless AUPC of TDMA satellite communication system, applied to a master station, the principle of which is shown in fig. 3, including the steps of:
the master station periodically acquires the Es/N0 actual value of the received burst carrier wave and performs smoothing treatment; wherein E is S The actual value of/N0 dynamically changes according to the waveform and power of the burst carrier transmitted by the current remote station;
the master station decides whether to adjust the waveform and power transmitted by the remote station according to the smoothed Es/N0 value and the Es/N0 target value corresponding to the current burst carrier waveform obtained by looking up the table:
if the smoothed Es/N0 value is greater than or equal to the corresponding Es/N0 target value, the original time slot waveform and power are not required to be adjusted, and the master station transmits the original time slot plan to the remote station through the TDM carrier wave, so that when the remote station receives the original time slot plan, the burst carrier wave is transmitted according to the original time slot waveform and power;
if the smoothed Es/N0 value is smaller than the corresponding Es/N0 target value, an idle time slot is planned to be used as an adjustment time slot for adjusting waveform and power, if the idle time slot is not available, the idle time slot is planned after the current service time slot plan is waited to be issued, and the master station issues the adjustment time slot plan to the remote station through the TDM carrier, so that when the remote station receives the adjustment time slot plan, the remote station transmits burst carrier temporarily at the adjustment time slot moment according to the waveform and power of the adjustment time slot.
Specifically, the method for transmitting the original time slot plan/adjustment time slot plan to the remote station through the TDM carrier is to seal the service signaling data and the original time slot plan/adjustment time slot plan data into a preset frame format, and transmit the data through continuous carrier modulation.
Another aspect of the embodiments of the present application provides a method for lossless AUPC adjustment of a burst carrier of a TDMA satellite communication system, applied to a remote station, the principle of which is shown in fig. 3, including the steps of:
the remote station receives and demodulates the TDM carrier wave issued by the master station, and restores the effective data information containing the return time slot plan carried in the TDM carrier wave;
the remote station analyzes the return time slot plan;
if the backward time slot plan is the original time slot plan, the remote station transmits burst carrier waves according to the original time slot waveform and power;
if the return time slot plan is the adjustment time slot plan, the remote station temporarily transmits burst carrier waves at the time of adjusting the time slot according to the waveform and the power of the adjustment time slot;
the remote station transmits a burst carrier to cause the master station to: periodically acquiring the Es/N0 actual value of the received burst carrier wave, performing smoothing treatment, and deciding whether to adjust the waveform and power transmitted by the remote station according to the smoothed Es/N0 value and the Es/N0 target value corresponding to the current burst carrier wave waveform obtained by looking up a table: if the smoothed Es/N0 value is greater than or equal to the corresponding Es/N0 target value, the adjustment is not needed, the original time slot waveform and the power are kept unchanged, and the original time slot plan is issued through the TDM carrier; if the smoothed Es/N0 value is smaller than the corresponding Es/N0 target value, the idle time slot is required to be adjusted, the idle time slot is planned to be used as an adjusting time slot for adjusting waveform and power, if the idle time slot does not exist, the idle time slot is planned after the current service time slot plan is waited to be issued, and the adjusting time slot plan is issued through the TDM carrier.
When the remote station transmits burst carrier, the service signaling data is encapsulated into a data frame with a preset return format according to the original time slot plan/the adjusted time slot plan, the frame format carries the sending waveform and the power information of the time slot, and then the data frame is modulated and transmitted by the burst carrier according to the sending waveform and the power information.
Another aspect of the embodiments of the present application provides a method for lossless AUPC adjustment of a burst carrier of a TDMA satellite communication system, applied to a master station and a remote station, where the principle is as shown in fig. 3, and the method includes the steps of:
the master station periodically acquires the Es/N0 actual value of the received burst carrier wave and performs smoothing treatment;
the master station decides whether to adjust the waveform and power transmitted by the remote station according to the smoothed Es/N0 value and the Es/N0 target value corresponding to the current burst carrier waveform obtained by looking up the table:
if the smoothed Es/N0 value is greater than or equal to the corresponding Es/N0 target value, the adjustment is not needed, the original time slot waveform and the power are kept unchanged, and the master station issues an original time slot plan to the remote station through the TDM carrier;
if the smoothed Es/N0 value is smaller than the corresponding Es/N0 target value, an idle time slot is required to be adjusted, planning an idle time slot to be used as an adjusting time slot for adjusting waveform and power, if the idle time slot does not exist, planning the idle time slot after waiting for the completion of the current service time slot plan delivery, and the master station delivering the adjusting time slot plan to the remote station through the TDM carrier;
the remote station demodulates the TDM carrier wave issued by the master station, and restores the effective data information containing the backward time slot plan carried in the TDM carrier wave;
the remote station parses the return slot plan:
if the backward time slot plan is the original time slot plan, the remote station transmits burst carrier waves according to the original time slot waveform and power;
if the return time slot plan is the adjustment time slot plan, the remote station temporarily transmits burst carriers at the adjustment time slot according to the waveform and power of the adjustment time slot.
In still another aspect, an embodiment of the present application provides a burst carrier lossless AUPC adjustment device for a TDMA satellite communication system, which is applied to a master station of the TDMA satellite communication system, as shown in fig. 2, and includes: the system comprises a return TDMA carrier receiving module, a time slot planning module, a master station data link processing module and a TDM transmitting module.
Referring to the principle shown in fig. 3, each module performs the following tasks, respectively:
and periodically acquiring and smoothing the Es/N0 actual value of the received burst carrier wave by the backward TDMA carrier wave receiving module, and judging whether the waveform and the power transmitted by the remote station need to be regulated or not according to the smoothed Es/N0 value and the Es/N0 target value corresponding to the current burst carrier wave waveform obtained by looking up the table, wherein if the smoothed Es/N0 value is greater than or equal to the corresponding Es/N0 target value, the regulation is not needed, and if the smoothed Es/N0 value is smaller than the corresponding Es/N0 target value, the regulation is needed.
When the decision of the returning TDMA carrier receiving module is that adjustment is not needed, the time slot planning module plans according to the original time slot plan to keep the original time slot waveform and power unchanged, when the decision of the returning TDMA carrier receiving module is that adjustment is needed, the time slot planning module plans an idle time slot to be used as an adjustment time slot for adjusting the waveform and the power, and if the idle time slot is not available, the time slot planning module waits for the current service time slot plan to be issued and then plans the idle time slot.
And the master station data link processing module encapsulates the service signaling data and the return time slot plan data into a preset frame format, wherein the return time slot plan is the original time slot plan or the adjusted time slot plan.
The TDM transmitting module carries out continuous carrier modulation transmission on the data frames processed by the data link processing module so as to realize the purpose of transmitting an original time slot plan/an adjustment time slot plan to a remote station through a TDM carrier; specifically, the TDM carrier transmits the original time slot plan to the remote station, so that when the remote station receives the original time slot plan, the remote station transmits the burst carrier according to the original time slot waveform and power, or transmits the adjusting time slot plan to the remote station through the TDM carrier, so that when the remote station receives the adjusting time slot plan, the remote station temporarily transmits the burst carrier at the adjusting time slot according to the waveform and power of the adjusting time slot.
In yet another aspect, an embodiment of the present application provides a burst carrier lossless AUPC adjustment device for a TDMA satellite communication system, which is applied to a remote station of the TDMA satellite communication system, as shown in fig. 2, and includes: the system comprises a forward TDM carrier receiving module, a time slot analyzing module, a remote station data link processing module and a TDMA transmitting module.
Referring to the principle shown in fig. 3, each module performs the following tasks, respectively:
the forward TDM carrier receiving module receives and demodulates the TDM carrier issued by the master station, and restores the effective data information containing the backward time slot plan carried in the TDM carrier.
The time slot analyzing module analyzes the return time slot plan;
and after the time slot analysis module analyzes the backward time slot plan into the original time slot plan/the adjusted time slot plan, the remote station data link processing module seals the service signaling data into a data frame with a preset backward format, and the frame format carries the transmission waveform and the power information corresponding to the original time slot plan/the adjusted time slot plan.
The TDMA transmitting module carries out burst carrier modulation transmission on the data frame according to the transmission waveform and the power information, specifically, when the time slot analyzing module analyzes that the backward time slot plan is the original time slot plan, the burst carrier is transmitted according to the original time slot waveform and the power; when the reverse time slot plan is analyzed as the adjustment time slot plan, the burst carrier wave is transmitted temporarily at the adjustment time slot moment according to the waveform and the power of the adjustment time slot; by transmitting a burst carrier to cause the primary station to: periodically acquiring the Es/N0 actual value of the received burst carrier wave, performing smoothing treatment, and deciding whether to adjust the waveform and power transmitted by the remote station according to the smoothed Es/N0 value and the Es/N0 target value corresponding to the current burst carrier wave waveform obtained by looking up a table: if the smoothed Es/N0 value is greater than or equal to the corresponding Es/N0 target value, the adjustment is not needed, the original time slot waveform and the power are kept unchanged, and the original time slot plan is issued through the TDM carrier; if the smoothed Es/N0 value is smaller than the corresponding Es/N0 target value, the idle time slot is required to be adjusted, the idle time slot is planned to be used as an adjusting time slot for adjusting waveform and power, if the idle time slot does not exist, the idle time slot is planned after the current service time slot plan is waited to be issued, and the adjusting time slot plan is issued through the TDM carrier.
In still another aspect, as shown in fig. 2, the burst carrier lossless AUPC adjusting device of the TDMA satellite communication system includes a backward TDMA carrier receiving module, a time slot planning module, a primary station data link processing module, a TDM transmitting module, and a forward TDM carrier receiving module, a time slot analyzing module, a remote station data link processing module, and a TDMA transmitting module, which are disposed at a remote station.
Referring to the principle shown in fig. 3, each module performs the following tasks, respectively:
and periodically acquiring and smoothing the Es/N0 actual value of the received burst carrier wave by the backward TDMA carrier wave receiving module, and judging whether the waveform and the power transmitted by the remote station need to be regulated or not according to the smoothed Es/N0 value and the Es/N0 target value corresponding to the current burst carrier wave waveform obtained by looking up the table, wherein if the smoothed Es/N0 value is greater than or equal to the corresponding Es/N0 target value, the regulation is not needed, and if the smoothed Es/N0 value is smaller than the corresponding Es/N0 target value, the regulation is needed.
When the return TDMA carrier receiving module decides that the adjustment is not needed, the original time slot plan keeping the original time slot waveform and power unchanged is used as the return time slot plan, when the return TDMA carrier receiving module decides that the adjustment is needed, the idle time slot is planned to be used as the adjustment time slot for adjusting the waveform and the power, the adjustment time slot is used as the return time slot plan, and if the idle time slot is not available, the idle time slot is planned after the current service time slot plan is issued.
And the master station data link processing module encapsulates the service signaling data and the return time slot plan data into a preset frame format.
The TDM transmitting module carries out continuous carrier modulation transmission on the data frames processed by the data link processing module so as to realize the purpose of issuing a backward time slot plan to a remote station through a TDM carrier.
The forward TDM carrier receiving module receives and demodulates the TDM carrier issued by the master station, and restores the effective data information containing the backward time slot plan carried in the TDM carrier.
The time slot analyzing module analyzes the return time slot plan.
And after the time slot analysis module analyzes the backward time slot plan into the original time slot plan/the adjusted time slot plan, the remote station data link processing module seals the service signaling data into a data frame with a preset backward format, and the frame format carries the transmission waveform and the power information corresponding to the original time slot plan/the adjusted time slot plan.
The TDMA transmitting module carries out burst carrier modulation transmission on the data frame according to the transmission waveform and the power information, and if the backward time slot plan is the original time slot plan, the burst carrier is transmitted according to the original time slot waveform and the power; and if the return time slot plan is the adjustment time slot plan, transmitting the burst carrier at the adjustment time slot moment according to the waveform and the power of the adjustment time slot.
The foregoing is merely a preferred embodiment of the present invention and is not meant to be the only or limiting of the present invention. It will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention.
Claims (6)
1. A burst carrier lossless AUPC adjusting method for a TDMA satellite communication system is characterized by comprising the following steps:
periodically acquiring the Es/N0 actual value of the received burst carrier wave and performing smoothing treatment;
deciding whether to adjust the waveform and power transmitted by the remote station according to the smoothed Es/N0 value and the Es/N0 target value corresponding to the current burst carrier waveform obtained by looking up the table:
if the smoothed Es/N0 value is greater than or equal to the corresponding Es/N0 target value, the original time slot waveform and power are not required to be adjusted, the original time slot plan is issued to the remote station through the TDM carrier wave, so that when the remote station receives the original time slot plan, the burst carrier wave is transmitted according to the original time slot waveform and power;
if the smoothed Es/N0 value is smaller than the corresponding Es/N0 target value, an idle time slot is planned to be used as an adjustment time slot for adjusting waveform and power, if the idle time slot is not available, the idle time slot is planned after the current service time slot plan is waited to be issued, the adjustment time slot plan is issued to the remote station through the TDM carrier, so that when the remote station receives the adjustment time slot plan, the burst carrier is transmitted temporarily at the adjustment time slot moment according to the waveform and the power of the adjustment time slot;
the method comprises the steps of transmitting the original time slot plan/adjustment time slot plan to a remote station through a TDM carrier, and sealing the service signaling data and the original time slot plan/adjustment time slot plan data into a preset frame format to be transmitted through continuous carrier modulation.
2. A TDMA satellite communication system burst carrier lossless AUPC adjustment device, applied to a master station of a TDMA satellite communication system, comprising:
the backward TDMA carrier receiving module is used for periodically acquiring the Es/N0 actual value of the received burst carrier and performing smoothing treatment, deciding whether to adjust the waveform and power transmitted by the remote station according to the smoothed Es/N0 value and the Es/N0 target value corresponding to the current burst carrier waveform obtained by looking up a table, if the smoothed Es/N0 value is more than or equal to the corresponding Es/N0 target value, the adjustment is not needed, and if the smoothed Es/N0 value is less than the corresponding Es/N0 target value, the adjustment is needed;
the time slot planning module is used for planning according to the original time slot plan to keep the original time slot waveform and power unchanged when the decision of the returning TDMA carrier receiving module is that adjustment is not needed, planning an idle time slot to be used as an adjustment time slot for adjusting the waveform and the power when the decision of the returning TDMA carrier receiving module is that adjustment is needed, and planning the idle time slot after the current service time slot plan is issued if the idle time slot is not available;
the TDM transmitting module is used for transmitting an original time slot plan to the remote station through the TDM carrier so that when the remote station receives the original time slot plan, the burst carrier is transmitted according to the original time slot waveform and power, or transmitting an adjustment time slot plan to the remote station through the TDM carrier so that when the remote station receives the adjustment time slot plan, the burst carrier is transmitted temporarily at the adjustment time slot according to the waveform and power of the adjustment time slot;
the master station data link processing module is used for packaging the service signaling data and the backward time slot plan data into a preset frame format, wherein the backward time slot plan is an original time slot plan or an adjusted time slot plan; the TDM transmitting module is used for carrying out continuous carrier modulation transmission on the data frames processed by the data link processing module so as to realize the purpose of transmitting an original time slot plan/an adjusted time slot plan to a remote station through a TDM carrier.
3. A burst carrier lossless AUPC adjusting method for a TDMA satellite communication system is characterized by comprising the following steps:
receiving and demodulating a TDM carrier transmitted by a master station, and restoring effective data information containing a return time slot plan carried in the TDM carrier;
analyzing a return time slot plan;
if the backward time slot plan is the original time slot plan, transmitting burst carrier according to the original time slot waveform and power;
if the return time slot plan is the adjustment time slot plan, transmitting burst carrier waves temporarily at the adjustment time slot moment according to the waveform and the power of the adjustment time slot;
by transmitting a burst carrier to cause the primary station to: periodically acquiring and smoothing the Es/N0 actual value of the received burst carrier wave, and deciding whether to adjust the waveform and power transmitted by the remote station according to the smoothed Es/N0 value and the Es/N0 target value corresponding to the current burst carrier wave waveform obtained by looking up a table: if the smoothed Es/N0 value is greater than or equal to the corresponding Es/N0 target value, the adjustment is not needed, the original time slot waveform and the power are kept unchanged, and the original time slot plan is issued through the TDM carrier; if the smoothed Es/N0 value is smaller than the corresponding Es/N0 target value, an idle time slot is required to be adjusted, planning an idle time slot to be used as an adjusting time slot for adjusting waveform and power, if the idle time slot is not available, planning the idle time slot after the current service time slot plan is completely issued, and issuing an adjusting time slot plan through a TDM carrier;
when transmitting burst carrier, the service signaling data is encapsulated into a data frame with a preset return format according to the original time slot plan/the adjusted time slot plan, the frame format carries the sending waveform and the power information of the time slot, and then the data frame is modulated and transmitted by the burst carrier according to the sending waveform and the power information.
4. A TDMA satellite communication system burst carrier lossless AUPC adjustment apparatus, applied to a remote station of a TDMA satellite communication system, comprising:
the forward TDM carrier receiving module is used for receiving and demodulating the TDM carrier issued by the master station and restoring the effective data information containing the backward time slot plan carried in the TDM carrier;
the time slot analysis module is used for analyzing the return time slot plan;
the TDMA transmitting module is used for transmitting burst carrier according to the original time slot waveform and power when the time slot analyzing module analyzes that the backward time slot plan is the original time slot plan; when the reverse time slot plan is analyzed as the adjustment time slot plan, the burst carrier wave is transmitted temporarily at the adjustment time slot moment according to the waveform and the power of the adjustment time slot; by transmitting a burst carrier to cause the primary station to: periodically acquiring and smoothing the Es/N0 actual value of the received burst carrier wave, and deciding whether to adjust the waveform and power transmitted by the remote station according to the smoothed Es/N0 value and the Es/N0 target value corresponding to the current burst carrier wave waveform obtained by looking up a table: if the smoothed Es/N0 value is greater than or equal to the corresponding Es/N0 target value, the adjustment is not needed, the original time slot waveform and the power are kept unchanged, and the original time slot plan is issued through the TDM carrier; if the smoothed Es/N0 value is smaller than the corresponding Es/N0 target value, an idle time slot is required to be adjusted, planning an idle time slot to be used as an adjusting time slot for adjusting waveform and power, if the idle time slot is not available, planning the idle time slot after the current service time slot plan is completely issued, and issuing an adjusting time slot plan through a TDM carrier;
and the TDMA transmitting module is used for carrying out burst carrier modulation transmission on the data frames according to the transmission waveform and the power information.
5. A burst carrier lossless AUPC adjusting method for a TDMA satellite communication system is characterized by comprising the following steps:
the master station periodically acquires the Es/N0 actual value of the received burst carrier wave and performs smoothing treatment;
the master station decides whether to adjust the waveform and power transmitted by the remote station according to the smoothed Es/N0 value and the Es/N0 target value corresponding to the current burst carrier waveform obtained by looking up the table:
if the smoothed Es/N0 value is greater than or equal to the corresponding Es/N0 target value, the adjustment is not needed, the original time slot waveform and the power are kept unchanged, and the master station issues an original time slot plan to the remote station through the TDM carrier;
if the smoothed Es/N0 value is smaller than the corresponding Es/N0 target value, an idle time slot is required to be adjusted, planning an idle time slot to be used as an adjusting time slot for adjusting waveform and power, if the idle time slot does not exist, planning the idle time slot after waiting for the completion of the current service time slot plan delivery, and the master station delivering the adjusting time slot plan to the remote station through the TDM carrier;
the remote station demodulates the TDM carrier wave issued by the master station, and restores the effective data information containing the backward time slot plan carried in the TDM carrier wave;
the remote station parses the return slot plan:
if the backward time slot plan is the original time slot plan, the business signaling data is sealed into a data frame with a preset backward format, the frame format carries the sending waveform and the power information corresponding to the original time slot plan, and the remote station transmits burst carrier waves according to the original time slot waveform and the power;
if the back time slot plan is the adjustment time slot plan, the business signaling data is sealed into a data frame with a preset back format, the frame format carries the sending waveform and power information corresponding to the adjustment time slot plan, and the remote station temporarily transmits burst carriers at the adjustment time slot according to the waveform and power of the adjustment time slot.
6. The burst carrier lossless AUPC adjusting device of the TDMA satellite communication system is characterized by comprising a backward TDMA carrier receiving module, a time slot planning module, a master station data link processing module, a TDM transmitting module which are arranged at a master station, a forward TDM carrier receiving module, a time slot analyzing module, a remote station data link processing module and a TDMA transmitting module which are arranged at a remote station;
the backward TDMA carrier receiving module is used for periodically acquiring the Es/N0 actual value of the received burst carrier and performing smoothing treatment, deciding whether to adjust the waveform and power transmitted by the remote station according to the smoothed Es/N0 value and the Es/N0 target value corresponding to the current burst carrier waveform obtained by looking up a table, if the smoothed Es/N0 value is more than or equal to the corresponding Es/N0 target value, the adjustment is not needed, and if the smoothed Es/N0 value is less than the corresponding Es/N0 target value, the adjustment is needed;
the time slot planning module is used for planning services and a return time slot plan, when the return TDMA carrier receiving module decides that adjustment is not needed, the original time slot plan which keeps the original time slot waveform and power unchanged is used as the return time slot plan, when the return TDMA carrier receiving module decides that adjustment is needed, an idle time slot is planned to be used as an adjustment time slot for adjusting the waveform and the power, the adjustment time slot is used as the return time slot plan, and if no idle time slot exists, the idle time slot is planned after the current service time slot plan is issued;
the master station data link processing module is used for packaging the service signaling data and the backward time slot plan data into a preset frame format;
the TDM transmitting module is used for carrying out continuous carrier modulation transmission on the data frames processed by the data link processing module so as to realize the purpose of issuing a return time slot plan to a remote station through a TDM carrier;
the forward TDM carrier receiving module is used for receiving and demodulating the TDM carrier issued by the master station and restoring the effective data information containing the backward time slot plan carried in the TDM carrier;
the time slot analysis module is used for analyzing the return time slot plan;
the remote station data link processing module is used for sealing the business signaling data into a data frame with a preset backward format after the backward time slot plan is analyzed by the time slot analyzing module to be the original time slot plan/the adjusted time slot plan, and the frame format carries the transmission waveform and the power information corresponding to the original time slot plan/the adjusted time slot plan;
the TDMA transmitting module is used for carrying out burst carrier modulation transmission on the data frame according to the transmission waveform and the power information, and transmitting burst carriers according to the original time slot waveform and the power when the backward time slot plan is the original time slot plan; and if the return time slot plan is the adjustment time slot plan, transmitting the burst carrier at the adjustment time slot moment according to the waveform and the power of the adjustment time slot.
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