CN109495158B - System and method for improving satellite communication rate - Google Patents
System and method for improving satellite communication rate Download PDFInfo
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- CN109495158B CN109495158B CN201811388088.3A CN201811388088A CN109495158B CN 109495158 B CN109495158 B CN 109495158B CN 201811388088 A CN201811388088 A CN 201811388088A CN 109495158 B CN109495158 B CN 109495158B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
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- H—ELECTRICITY
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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- H04L47/10—Flow control; Congestion control
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- H04L47/125—Avoiding congestion; Recovering from congestion by balancing the load, e.g. traffic engineering
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/78—Architectures of resource allocation
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Abstract
The invention discloses a system for improving satellite communication rate, comprising a first lifting service processor and a second lifting service processor; the first lifting service processor is in data connection between a client service end and a receiving end of satellite channel equipment, the number of the satellite channel equipment is N, and N is more than or equal to 2; the transmitting end of the satellite channel equipment is in wireless connection with a communication satellite arranged above the ground, and the communication satellite is also connected with one end of a satellite gateway station; the other end of the satellite gateway station is connected with a second lifting service processor, and the second lifting service processor is also connected with internet equipment; therefore, the first and second promotion service processors detect the available channels and the quality thereof, and distribute different satellite channels for the upper and lower service data packets, thereby achieving the functions of load balancing and channel information rate promotion.
Description
Technical Field
The invention relates to the technical field of satellite communication, in particular to a system and a method for improving the satellite communication rate.
Background
The "Tiantong satellite communication system" is a satellite system which is independently developed and constructed in China, a Tiantong first satellite is transmitted in 2016 and 8 months, and a civil operator in 2018 and 6 months adopts China telecom official number allocation and commercial use. The satellite communication system provides an information rate of 2.4 to 384 kilobytes per second (kbps, a unit for evaluating a data transmission rate) and supports voice and short message services. Because the heaven-earth satellite communication adopts a narrow-band communication mode, the information rate is limited. In addition, in the field of satellite communication, for example, the delay time of a satellite one-way signal is about 200 milliseconds, the time delay caused by data Transmission interaction by using a Transmission Control Protocol (TCP) is long, the channel utilization rate is not high, and a certain channel capacity needs to be occupied by a message header used by an Internet Protocol (IP) network, so that the satellite communication system capacity which is not sufficient in channel is less efficient. Some applications requiring high information rate, such as high definition video transmission, big data information acquisition, etc., cannot meet the requirements through an aerospace satellite mobile communication system.
The existing method for improving the information rate has the following advantages and disadvantages:
the patent name: a system for wireless multilink bandwidth aggregation; application No.: CN 201611225550.9. It discloses importing multiple link data into a service server via multiple virtual local area networks. However, the method can only perform information rate superposition for a single application, and cannot meet the aggregated use of all network applications, and in addition, the virtual local area network technology is currently controlled by the country and the use approval process is complex.
The patent name: a bandwidth superimposed wireless internet system and method, application number: CN 201210101917.1. It discloses re-aggregating data after distributing it to multiple network cards, but this method is only applicable to devices with network cards.
The patent name: a wireless internet access method, device and system, application number: cn200910241339.x, the method only splits the file, and must use a channel to inform the opposite end how to split the service, and the channel use is not efficient.
In summary, there is a need in the industry for a method and apparatus for improving the rate of satellite communication information that overcomes the above-mentioned deficiencies.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a system for improving the satellite communication speed.
It is another object of the present invention to overcome the above deficiencies of the prior art and to provide a method for increasing the rate of satellite communication.
The purpose of the invention is realized by the following technical scheme:
a system for increasing the rate of satellite communication, comprising: a first promotion service processor and a second promotion service processor; the first lifting service processor is in data connection between a client service end and a receiving end of satellite channel equipment, the number of the satellite channel equipment is N, and N is more than or equal to 2; the transmitting end of the satellite channel equipment is in wireless connection with a communication satellite arranged above the ground, and the communication satellite is also connected with one end of a satellite gateway station; the other end of the satellite gateway station is connected with a second lifting service processor, and the second lifting service processor is also connected with internet equipment; the first lifting service processor is used for receiving an uplink IP data stream sent by a client service end, processing the IP data stream into uplink service data packets, allocating a transmission channel for each uplink service data packet, and sending the uplink service data packets to the satellite channel equipment according to the allocated transmission channel; and the second lifting service processor is used for processing downlink IP data streams sent to the client service end by the Internet equipment into downlink service data packets, allocating a transmission channel to each downlink service data packet and sending the downlink service data packets to the satellite gateway station.
Preferably, the first promote traffic handler includes: the system comprises a first lifting service interaction processing unit, an uplink TCP protocol data packet accelerating unit, an uplink IP data packet header compressing unit, an uplink data dividing and numbering unit, a downlink data synthesizing unit and a downlink IP data restoring unit; the input end of the upstream TCP protocol data packet acceleration unit is connected with the data of the client service end, the output end of the uplink TCP protocol data packet accelerating unit is connected with the input end of the uplink IP data packet header compressing unit, the output end of the uplink IP data packet header compression unit is connected with the input end of the uplink data division numbering unit, the output end of the uplink data division numbering unit is connected with the first port of the first promotion service interaction processing unit, the second port of the first promotion service interaction processing unit is connected with the input end of the downlink data synthesis unit, the output end of the downlink data synthesis unit is connected with the input end of the downlink IP data reduction unit, the output end of the downlink IP data restoration unit is connected with the client service end, and the third port of the first promotion service interaction processing unit is connected with the satellite channel equipment.
Preferably, the second promote service processor includes: the system comprises a second lifting service interaction processing unit, a downlink TCP protocol data packet accelerating unit, a downlink IP data packet header compressing unit, a downlink data dividing and numbering unit, an uplink data synthesizing unit and an uplink IP data restoring unit; the first end of the second lifting service interaction processing unit is connected with the satellite gateway station, the second end of the second lifting service interaction processing unit is connected with the input end of the uplink data synthesis unit, the output end of the uplink data synthesis unit is connected with the input end of the uplink IP data reduction unit, and the output end of the uplink IP data reduction unit is connected to the Internet equipment; the input end of the downlink TCP protocol data packet acceleration unit is connected to the Internet equipment, the output end of the downlink TCP protocol data packet acceleration unit is connected with the input end of the downlink IP data packet header compression unit, the output end of the downlink IP data packet header compression unit is connected with the input end of the downlink data segmentation numbering unit, and the output end of the downlink data segmentation numbering unit is connected with the third end of the second promotion service interaction processing unit.
The other purpose of the invention is realized by the following technical scheme:
a method for increasing a rate of satellite communications, comprising: the first promotion service processor receives an uplink IP data stream sent by a client service end and sends the uplink IP data stream to satellite channel equipment according to an allocated transmission channel; and the second lifting service processor receives downlink IP data streams sent to the client service end by the Internet equipment, allocates a transmission channel for each downlink service data packet, and sends the downlink service data packets to the satellite gateway station.
Preferably, the receiving, by the first enhanced service processor, the uplink IP data stream sent by the client service end, and sending the uplink IP data stream to the satellite channel device according to the allocated transmission channel includes:
an uplink TCP protocol data packet acceleration unit receives an uplink IP data stream from a client service end and judges whether the uplink IP data stream is a TCP protocol data packet or not;
if yes, the uplink TCP protocol data packet acceleration unit performs TCP acceleration on the uplink IP data stream, and sends the accelerated uplink IP data stream to the uplink IP data packet header compression unit;
the message header compression unit of the uplink IP data packet compresses the message header of the accelerated uplink IP data flow according to a preset uplink data message header compression rule, and sends the compressed uplink IP data flow to the uplink data segmentation numbering unit;
the uplink data segmentation numbering unit processes the compressed uplink IP data flow into an uplink service data packet according to a preset data length and sends the uplink service data packet to the first lifting service interaction processing unit;
the first promotion service interaction processing unit detects the number of available communication channels, allocates a transmission channel to each uplink service data packet, and sends the uplink service data packet to the satellite channel device according to the allocated transmission channel.
Preferably, the method for increasing the satellite communication rate further comprises:
the satellite gateway station sends the uplink service data packet to a second lifting service interaction processing unit;
the second promotion service interaction processing unit sends the uplink service data packet to the uplink data synthesis unit;
the uplink data synthesis unit wraps the uplink service data into an uplink IP service data flow compressed by the message header according to a preset numbering rule, and sends the uplink IP service data flow to the uplink IP data restoration unit;
and the uplink IP data reduction unit reduces the uplink IP service data flow into an uplink IP data flow according to a preset uplink data message header compression rule, and the uplink IP data flow is uplink to the Internet equipment to complete information interaction.
Preferably, the processing, by the uplink data dividing and numbering unit, the compressed uplink IP data stream into an uplink service data packet according to a preset data length includes:
the uplink data dividing numbering unit divides the compressed uplink IP data flow according to a preset data length;
and the uplink data division and numbering unit is used for numbering and packaging the divided uplink IP data flow to obtain an uplink service data packet using a UDP protocol.
Preferably, the receiving, by the second enhanced service processor, the downlink IP data stream sent by the internet device to the client service end, allocating a transmission channel to each downlink service data packet, and sending the downlink service data packet to the satellite gateway station includes:
a downlink TCP protocol data packet acceleration unit receives a downlink IP data stream sent by the Internet equipment and judges whether the downlink IP data stream is a TCP protocol data packet or not;
if yes, the downlink TCP protocol data packet acceleration unit performs TCP acceleration on the downlink IP data stream, and sends the accelerated downlink IP data stream to the downlink IP data packet header compression unit;
the downlink IP data packet message header compression unit compresses the message header of the downlink IP data stream and sends the compressed downlink IP data stream to the downlink data segmentation numbering unit;
the downlink data segmentation numbering unit processes the compressed downlink IP data stream into a downlink service data packet according to a preset data length and sends the downlink service data packet to the second promotion service interaction processing unit;
the second enhanced service interaction processing unit detects the number of available communication channels, allocates a transmission channel for each downlink service data packet, and sends the downlink service data packet to the satellite gateway station.
Preferably, the method for increasing the satellite communication rate further comprises:
the first lifting service interaction processing unit receives the downlink service data packet and sends the downlink service data packet to the downlink data synthesis unit;
the downlink data synthesis unit synthesizes the downlink service data packets into a downlink IP service data stream compressed by the message header according to a preset numbering rule, and sends the downlink IP service data stream compressed by the message header to the downlink IP data reduction unit;
and the downlink IP data reduction unit reduces the downlink IP service data flow after the message header compression into a downlink IP data flow according to a preset downlink data message header compression rule and sends the downlink IP data flow to the client service end.
Compared with the prior art, the invention has the following advantages:
when a client sends an uplink IP data stream to satellite communication, the first lifting service processor repacks the IP data stream into service data packets, detects available communication channels and allocates a transmission channel to each uplink service data packet according to the communication performance of the detected satellite channel, when internet equipment sends a downlink IP data stream to a client service end, the second lifting service processor processes the downlink IP data stream into downlink service data packets, detects the available communication channels, allocates the transmission channels to each downlink service data packet, informs the number and the performance of the communication channels allocated by the first lifting service processor, and sends the downlink service data packets to a satellite gateway station. Therefore, the first and second promotion service processors detect the available channels and the quality thereof, and distribute different satellite channels for the upper and lower service data packets, thereby achieving the functions of load balancing and channel information rate promotion. The method and the device for improving the information rate solve the problems that VPN tunnel communication is needed for improving the information rate, only single application is needed, or the efficiency is not high, and the TCP protocol data delay interaction time is long.
Drawings
Fig. 1 is a schematic diagram of a system for increasing the rate of satellite communication in accordance with the present invention.
Fig. 2 is a block diagram of a first enhanced service processor of the present invention.
Fig. 3 is a first structural block diagram of a second enhanced service processor of the present invention.
Fig. 4 is a second structural block diagram of the first enhanced service processor of the present invention.
Fig. 5 is a flow chart of a first enhanced service processor of the present invention for processing upstream IP data streams.
Fig. 6 is a flow chart of processing downstream IP data flow of the second enhanced service processor of the present invention.
Detailed Description
The invention is further illustrated by the following figures and examples.
Referring to fig. 1, a system for increasing a satellite communication rate includes: a first promotion service processor and a second promotion service processor; the first lifting service processor is in data connection between a client service end and a receiving end of satellite channel equipment, the number of the satellite channel equipment is N, and N is more than or equal to 2; the transmitting end of the satellite channel equipment is in wireless connection with a communication satellite arranged above the ground, and the communication satellite is also connected with one end of a satellite gateway station; the other end of the satellite gateway station is connected with a second lifting service processor, and the second lifting service processor is also connected with internet equipment; the first lifting service processor is used for receiving an uplink IP data stream sent by a client service end, processing the IP data stream into uplink service data packets, allocating a transmission channel for each uplink service data packet, and sending the uplink service data packets to the satellite channel equipment according to the allocated transmission channel; and the second lifting service processor is used for processing downlink IP data streams sent to the client service end by the Internet equipment into downlink service data packets, allocating a transmission channel to each downlink service data packet and sending the downlink service data packets to the satellite gateway station.
Referring to fig. 2, the first advanced traffic handler includes: the system comprises a first lifting service interaction processing unit, an uplink TCP protocol data packet accelerating unit, an uplink IP data packet header compressing unit, an uplink data dividing and numbering unit, a downlink data synthesizing unit and a downlink IP data restoring unit; the input end of the upstream TCP protocol data packet acceleration unit is connected with the data of the client service end, the output end of the uplink TCP protocol data packet accelerating unit is connected with the input end of the uplink IP data packet header compressing unit, the output end of the uplink IP data packet header compression unit is connected with the input end of the uplink data division numbering unit, the output end of the uplink data division numbering unit is connected with the first port of the first promotion service interaction processing unit, the second port of the first promotion service interaction processing unit is connected with the input end of the downlink data synthesis unit, the output end of the downlink data synthesis unit is connected with the input end of the downlink IP data reduction unit, the output end of the downlink IP data restoration unit is connected with the client service end, and the third port of the first promotion service interaction processing unit is connected with the satellite channel equipment.
Referring to fig. 3, the second promote service processor includes: the system comprises a second lifting service interaction processing unit, a downlink TCP protocol data packet accelerating unit, a downlink IP data packet header compressing unit, a downlink data dividing and numbering unit, an uplink data synthesizing unit and an uplink IP data restoring unit; the first end of the second lifting service interaction processing unit is connected with the satellite gateway station, the second end of the second lifting service interaction processing unit is connected with the input end of the uplink data synthesis unit, the output end of the uplink data synthesis unit is connected with the input end of the uplink IP data reduction unit, and the output end of the uplink IP data reduction unit is connected to the Internet equipment; the input end of the downlink TCP protocol data packet acceleration unit is connected to the Internet equipment, the output end of the downlink TCP protocol data packet acceleration unit is connected with the input end of the downlink IP data packet header compression unit, the output end of the downlink IP data packet header compression unit is connected with the input end of the downlink data segmentation numbering unit, and the output end of the downlink data segmentation numbering unit is connected with the third end of the second promotion service interaction processing unit.
As shown in fig. 3, one end of the second lift service handler is connected to the direct satellite gateway station, i.e. the single gateway station is directly connected to the second lift service handler after the entrance/exit. Such that the application is directed to single satellite multi-channel traffic only. And the other end of the second promotion service processor is connected with the Internet equipment. As shown in fig. 4, one end of the second lift service handler interacts with a satellite gateway station, not limited to a single satellite gateway station, which may be one or more, via the internet. The internet may be any available network, including wired networks, wireless networks. WIFI is also possible. The internet device may be a router, and is not particularly limited herein. The client service end refers to software needing to be on the internet. Such as QQ, web browser.
The method for increasing the satellite communication rate used by the system for increasing the satellite communication rate comprises the following steps: the first promotion service processor receives an uplink IP data stream sent by a client service end and sends the uplink IP data stream to satellite channel equipment according to an allocated transmission channel; and the second lifting service processor receives downlink IP data streams sent to the client service end by the Internet equipment, allocates a transmission channel for each downlink service data packet, and sends the downlink service data packets to the satellite gateway station.
Referring to fig. 5, the receiving, by the first enhanced service processor, the uplink IP data stream sent by the client service end, and sending the uplink IP data stream to the satellite channel device according to the allocated transmission channel includes:
s11, the uplink TCP protocol data packet acceleration unit receives an uplink IP data stream from the client service end and judges whether the uplink IP data stream is a TCP protocol data packet; if not, the uplink IP data flow is directly sent to the uplink IP data packet message header compression unit;
s12, if yes, the uplink TCP protocol data packet acceleration unit performs TCP acceleration on the uplink IP data stream, and sends the accelerated uplink IP data stream to the uplink IP data packet header compression unit;
s13, the message header compression unit of the uplink IP data packet compresses the message header of the accelerated uplink IP data flow according to the preset uplink data message header compression rule, and sends the compressed uplink IP data flow to the uplink data division numbering unit;
s14, the uplink data dividing and numbering unit processes the compressed uplink IP data flow into an uplink service data packet according to a preset data length and sends the uplink service data packet to the first lifting service interaction processing unit;
s15, the first enhanced service interaction processing unit detects the number of available communication channels, allocates a transmission channel to each uplink service data packet, and sends the uplink service data packet to the satellite channel device according to the allocated transmission channel. The corresponding satellite channel device then transmits the uplink traffic data to the communication satellite, i.e. the uplink traffic data is transmitted to the communication satellite along the allocated transmission channel.
The satellite channel equipment sends the uplink service data packet to a communication satellite arranged above the ground; the communication satellite transmits the uplink service data packet to a satellite gateway station; and then, the data is transmitted to the Internet equipment through a second promotion service processor, and the specific steps are as follows: the satellite gateway station sends the uplink service data packet to a second lifting service interaction processing unit; the second promotion service interaction processing unit sends the uplink service data packet to the uplink data synthesis unit; the uplink data synthesis unit wraps the uplink service data into an uplink IP service data flow compressed by the message header according to a preset numbering rule, and sends the uplink IP service data flow to the uplink IP data restoration unit; and the uplink IP data reduction unit reduces the uplink IP service data flow into an uplink IP data flow according to a preset uplink data message header compression rule, and the uplink IP data flow is uplink to the Internet equipment to complete information interaction.
In this embodiment, the processing, by the uplink data splitting and numbering unit, the compressed uplink IP data stream into an uplink service data packet according to a preset data length includes: the uplink data dividing numbering unit divides the compressed uplink IP data flow according to a preset data length; and the uplink data division and numbering unit is used for numbering and packaging the divided uplink IP data flow to obtain an uplink service data packet using a UDP protocol.
Referring to fig. 6, the receiving, by the second enhanced service processor, the downlink IP data stream sent by the internet device to the client service end, allocating a transmission channel to each downlink service data packet, and sending the downlink service data packet to the satellite gateway station includes:
s21, the downlink TCP protocol data packet acceleration unit receives the downlink IP data stream sent by the Internet equipment and judges whether the downlink IP data stream is a TCP protocol data packet; if not, the uplink IP data flow is directly sent to the uplink IP data packet message header compression unit;
s22, if yes, the downlink TCP packet acceleration unit performs TCP acceleration on the downlink IP data stream, and sends the accelerated downlink IP data stream to the downlink IP packet header compression unit;
s23, the down IP data packet header compressing unit compresses the header of the down IP data flow and sends the compressed down IP data flow to the down data dividing and numbering unit;
s24, the downlink data dividing and numbering unit processes the compressed downlink IP data stream into a downlink service data packet according to the preset data length and sends the downlink service data packet to the second promotion service interaction processing unit;
s25, the second enhanced service interaction processing unit detects the number of available communication channels, allocates a transmission channel for each downlink service data packet, and sends the downlink service data packet to the satellite gateway station.
The satellite gateway station sends the downlink service data packets to the communication satellite, the communication satellite sends the downlink service data packets to the satellite channel equipment according to the channel distributed by the second lifting service interaction processing unit for each downlink service data packet, the satellite channel equipment sends the downlink service data packets to the second lifting service processor, and the second lifting service processor sends the downlink service data packets to the client service end. The specific steps of the second enhanced service processor sending the downlink service data packet to the client service end include: the first lifting service interaction processing unit receives the downlink service data packet and sends the downlink service data packet to the downlink data synthesis unit; the downlink data synthesis unit synthesizes the downlink service data packets into a downlink IP service data stream compressed by the message header according to a preset numbering rule, and sends the downlink IP service data stream compressed by the message header to the downlink IP data reduction unit; and the downlink IP data reduction unit reduces the downlink IP service data flow after the message header compression into a downlink IP data flow according to a preset downlink data message header compression rule and sends the downlink IP data flow to the client service end.
The scheme of the invention is equivalent to the prior art and has the following advantages:
when the client sends uplink IP data streams to the satellite communication, the first lifting service processor repacks the IP data streams into service data packets, detects available communication channels, allocates transmission channels for each uplink service data packet according to the communication performance of the detected satellite channels, sends the uplink service data packets to corresponding satellite channel equipment according to the allocated transmission channels, and the satellite channel equipment sends the uplink service data packets to the communication satellite according to the allocated transmission channels. When the internet equipment sends downlink IP data streams to the client service end, the second promotion service processor processes the downlink IP data streams into downlink service data packets, detects available communication channels, allocates transmission channels for each downlink service data packet, informs the first promotion service processor of the number and performance of the allocated communication channels, and sends the downlink service data packets to the satellite gateway station. When the lower business data packet reaches the communication satellite, the communication satellite sends the lower business data packet to the satellite channel equipment according to the transmission channel distributed by the second lifting business processor, and the corresponding satellite channel equipment sends the lower business data to the first lifting business processor, so that the available channel and the quality of the available channel are detected by the first lifting business processor and the second lifting business processor, different satellite channels are distributed for the upper business data packet and the lower business data packet, and the functions of load balancing and channel information rate lifting are achieved. The method and the device for improving the information rate solve the problems that VPN tunnel communication is needed for improving the information rate, only single application is needed, or the efficiency is not high, and the TCP protocol data delay interaction time is long.
In addition, the first promotion service processor comprises a downlink TCP protocol data packet acceleration unit and a downlink IP data packet header compression unit, and TCP acceleration and IP header compression are respectively carried out on the uplink IP data stream, so that the volume of the IP data stream needing uplink is reduced. The second lifting service processor comprises a downlink TCP protocol data packet accelerating unit and a downlink IP data packet header compressing unit, and TCP acceleration and IP header compression are respectively carried out on downlink IP data flow, so that the volume of the IP data flow needing downlink is reduced, and the communication speed can be improved.
The above-mentioned embodiments are preferred embodiments of the present invention, and the present invention is not limited thereto, and any other modifications or equivalent substitutions that do not depart from the technical spirit of the present invention are included in the scope of the present invention.
Claims (6)
1. A system for increasing the rate of satellite communications, comprising: a first promotion service processor and a second promotion service processor;
the first lifting service processor is in data connection between a client service end and a receiving end of satellite channel equipment, the number of the satellite channel equipment is N, and N is more than or equal to 2; the transmitting end of the satellite channel equipment is in wireless connection with a communication satellite arranged above the ground, and the communication satellite is also connected with one end of a satellite gateway station; the other end of the satellite gateway station is connected with a second lifting service processor, and the second lifting service processor is also connected with internet equipment;
the first lifting service processor is used for receiving an uplink IP data stream sent by a client service end, processing the IP data stream into uplink service data packets, allocating a transmission channel for each uplink service data packet, and sending the uplink service data packets to the satellite channel equipment according to the allocated transmission channel; the method specifically comprises the following steps:
an uplink TCP protocol data packet acceleration unit receives an uplink IP data stream from a client service end and judges whether the uplink IP data stream is a TCP protocol data packet or not;
if yes, the uplink TCP protocol data packet acceleration unit performs TCP acceleration on the uplink IP data stream, and sends the accelerated uplink IP data stream to the uplink IP data packet header compression unit;
the message header compression unit of the uplink IP data packet compresses the message header of the accelerated uplink IP data flow according to a preset uplink data message header compression rule, and sends the compressed uplink IP data flow to the uplink data segmentation numbering unit;
the uplink data segmentation numbering unit processes the compressed uplink IP data flow into an uplink service data packet according to a preset data length and sends the uplink service data packet to the first lifting service interaction processing unit;
the first promotion service interaction processing unit detects the number of available communication channels, allocates a transmission channel for each uplink service data packet, and sends the uplink service data packet to the satellite channel equipment according to the allocated transmission channel;
the processing of the compressed uplink IP data stream into an uplink service data packet according to a preset data length by the uplink data dividing and numbering unit includes:
the uplink data dividing numbering unit divides the compressed uplink IP data flow according to a preset data length;
the uplink data segmentation numbering unit is used for numbering and packaging the segmented uplink IP data flow to obtain an uplink service data packet using a UDP protocol;
the second lifting service processor is used for processing downlink IP data streams sent to the client service end by the Internet equipment into downlink service data packets, allocating a transmission channel to each downlink service data packet and sending the downlink service data packets to the satellite gateway station; the method specifically comprises the following steps:
a downlink TCP protocol data packet acceleration unit receives a downlink IP data stream sent by the Internet equipment and judges whether the downlink IP data stream is a TCP protocol data packet or not;
if yes, the downlink TCP protocol data packet acceleration unit performs TCP acceleration on the downlink IP data stream, and sends the accelerated downlink IP data stream to the downlink IP data packet header compression unit;
the downlink IP data packet message header compression unit compresses the message header of the downlink IP data stream and sends the compressed downlink IP data stream to the downlink data segmentation numbering unit;
the downlink data segmentation numbering unit processes the compressed downlink IP data stream into a downlink service data packet according to a preset data length and sends the downlink service data packet to the second promotion service interaction processing unit;
the second enhanced service interaction processing unit detects the number of available communication channels, allocates a transmission channel for each downlink service data packet, and sends the downlink service data packet to the satellite gateway station.
2. The system for increasing satellite communication rate according to claim 1, wherein the first enhanced service handler comprises: the system comprises a first lifting service interaction processing unit, an uplink TCP protocol data packet accelerating unit, an uplink IP data packet header compressing unit, an uplink data dividing and numbering unit, a downlink data synthesizing unit and a downlink IP data restoring unit;
the input end of the upstream TCP protocol data packet acceleration unit is connected with the data of the client service end, the output end of the uplink TCP protocol data packet accelerating unit is connected with the input end of the uplink IP data packet header compressing unit, the output end of the uplink IP data packet header compression unit is connected with the input end of the uplink data division numbering unit, the output end of the uplink data division numbering unit is connected with the first port of the first promotion service interaction processing unit, the second port of the first promotion service interaction processing unit is connected with the input end of the downlink data synthesis unit, the output end of the downlink data synthesis unit is connected with the input end of the downlink IP data reduction unit, the output end of the downlink IP data restoration unit is connected with the client service end, and the third port of the first promotion service interaction processing unit is connected with the satellite channel equipment.
3. The system for increasing satellite communication rate according to claim 1, wherein the second enhanced service handler comprises: the system comprises a second lifting service interaction processing unit, a downlink TCP protocol data packet accelerating unit, a downlink IP data packet header compressing unit, a downlink data dividing and numbering unit, an uplink data synthesizing unit and an uplink IP data restoring unit;
the first end of the second lifting service interaction processing unit is connected with the satellite gateway station, the second end of the second lifting service interaction processing unit is connected with the input end of the uplink data synthesis unit, the output end of the uplink data synthesis unit is connected with the input end of the uplink IP data reduction unit, and the output end of the uplink IP data reduction unit is connected to the Internet equipment;
the input end of the downlink TCP protocol data packet acceleration unit is connected to the Internet equipment, the output end of the downlink TCP protocol data packet acceleration unit is connected with the input end of the downlink IP data packet header compression unit, the output end of the downlink IP data packet header compression unit is connected with the input end of the downlink data segmentation numbering unit, and the output end of the downlink data segmentation numbering unit is connected with the third end of the second promotion service interaction processing unit.
4. A method for increasing a rate of satellite communications, comprising:
the first promotion service processor receives an uplink IP data stream sent by a client service end and sends the uplink IP data stream to satellite channel equipment according to an allocated transmission channel; the method specifically comprises the following steps:
an uplink TCP protocol data packet acceleration unit receives an uplink IP data stream from a client service end and judges whether the uplink IP data stream is a TCP protocol data packet or not;
if yes, the uplink TCP protocol data packet acceleration unit performs TCP acceleration on the uplink IP data stream, and sends the accelerated uplink IP data stream to the uplink IP data packet header compression unit;
the message header compression unit of the uplink IP data packet compresses the message header of the accelerated uplink IP data flow according to a preset uplink data message header compression rule, and sends the compressed uplink IP data flow to the uplink data segmentation numbering unit;
the uplink data segmentation numbering unit processes the compressed uplink IP data flow into an uplink service data packet according to a preset data length and sends the uplink service data packet to the first lifting service interaction processing unit;
the first promotion service interaction processing unit detects the number of available communication channels, allocates a transmission channel for each uplink service data packet, and sends the uplink service data packet to the satellite channel equipment according to the allocated transmission channel;
the processing of the compressed uplink IP data stream into an uplink service data packet according to a preset data length by the uplink data dividing and numbering unit includes:
the uplink data dividing numbering unit divides the compressed uplink IP data flow according to a preset data length;
the uplink data segmentation numbering unit is used for numbering and packaging the segmented uplink IP data flow to obtain an uplink service data packet using a UDP protocol;
the second lifting service processor receives downlink IP data streams sent to the client service end by the Internet equipment, allocates a transmission channel for each downlink service data packet and sends the downlink service data packets to the satellite gateway station; the method specifically comprises the following steps:
a downlink TCP protocol data packet acceleration unit receives a downlink IP data stream sent by the Internet equipment and judges whether the downlink IP data stream is a TCP protocol data packet or not;
if yes, the downlink TCP protocol data packet acceleration unit performs TCP acceleration on the downlink IP data stream, and sends the accelerated downlink IP data stream to the downlink IP data packet header compression unit;
the downlink IP data packet message header compression unit compresses the message header of the downlink IP data stream and sends the compressed downlink IP data stream to the downlink data segmentation numbering unit;
the downlink data segmentation numbering unit processes the compressed downlink IP data stream into a downlink service data packet according to a preset data length and sends the downlink service data packet to the second promotion service interaction processing unit;
the second enhanced service interaction processing unit detects the number of available communication channels, allocates a transmission channel for each downlink service data packet, and sends the downlink service data packet to the satellite gateway station.
5. The method of increasing a rate of satellite communication according to claim 4, further comprising:
the satellite gateway station sends the uplink service data packet to a second lifting service interaction processing unit;
the second promotion service interaction processing unit sends the uplink service data packet to the uplink data synthesis unit;
the uplink data synthesis unit wraps the uplink service data into an uplink IP service data flow compressed by the message header according to a preset numbering rule, and sends the uplink IP service data flow to the uplink IP data restoration unit;
and the uplink IP data reduction unit reduces the uplink IP service data flow into an uplink IP data flow according to a preset uplink data message header compression rule, and the uplink IP data flow is uplink to the Internet equipment to complete information interaction.
6. The method of increasing a rate of satellite communication according to claim 4, further comprising:
the first lifting service interaction processing unit receives the downlink service data packet and sends the downlink service data packet to the downlink data synthesis unit;
the downlink data synthesis unit synthesizes the downlink service data packets into a downlink IP service data stream compressed by the message header according to a preset numbering rule, and sends the downlink IP service data stream compressed by the message header to the downlink IP data reduction unit;
and the downlink IP data reduction unit reduces the downlink IP service data flow after the message header compression into a downlink IP data flow according to a preset downlink data message header compression rule and sends the downlink IP data flow to the client service end.
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| CN116405094A (en) * | 2023-04-14 | 2023-07-07 | 北京蔚海明祥科技有限公司 | Data transmission system and method based on multipath Tiantong communication equipment |
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