CN113098580B - Satellite air interface message caching and speed limiting processing method, device, equipment and medium - Google Patents
Satellite air interface message caching and speed limiting processing method, device, equipment and medium Download PDFInfo
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Abstract
The invention discloses a method, a device, equipment and a medium for processing air interface message caching and speed limiting of a satellite, wherein the method comprises the following steps: acquiring and receiving a broadband message of a first rate sent by a high-speed channel; carrying out parallel caching on the received broadband messages with the first rate in a preset parallel space according to different user identifications; limiting the message data after parallel caching to a message with a second rate according to a first-in first-out principle, and sending out the message through a satellite signal; wherein the second rate is less than the first rate. The invention provides a method for caching, forwarding and limiting the speed of a downlink message of a satellite terminal based on GGSN equipment, wherein the message of a satellite air interface is cached and limited according to a preset rule, so that the congestion rate is reduced, the channel efficiency is improved, and the packet loss rate is greatly reduced; the invention has simple and convenient operation, easy realization and low realization cost, and provides convenience for users to use.
Description
Technical Field
The invention relates to the technical field of satellite communication, in particular to a satellite air interface message caching and speed limiting processing method, a satellite air interface message caching and speed limiting processing device, computer equipment and a storage medium.
Background
Satellite broadband communication, also known as multimedia satellite communication, refers to the processing and transmission of voice, data, images and video over the satellite. Because the bandwidth of a satellite communication system is much less than that of an optical fiber line, several tens of megabits per second is referred to as broadband communication. Providing greater bandwidth is only part of a satellite communications solution, and satellite-based communications also provides opportunities for many new applications and new services. Because satellite resources are very expensive, the bandwidth given to each user is within 40KB/s, which is orders of magnitude slower than existing fiber, WIFI, etc. at rates of hundreds of M per second. If the satellite terminal is connected with the satellite, the GSC equipment converts the satellite terminal into a traditional optical fiber or network line link message to communicate with the final user or equipment. The 40KB/s satellite speed is not equal to the broadband rate of hundreds of M/s, and the message coming from the broadband must be buffered after being transmitted to the GGSN device, then forwarded to the GSC at the rate of 40KB/s, and finally uploaded to the satellite.
In the prior art, the strategies of message caching and speed limiting of a satellite air interface are not good, and congestion and frame loss are easily caused sometimes, which affects the user experience.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
The invention mainly aims to provide a method, a device, computer equipment and a storage medium for caching and limiting speed of a satellite air interface message.
In order to achieve the above object, the present invention provides a method for processing a satellite air interface message buffer and speed limit, wherein the method for processing the satellite air interface message buffer and speed limit comprises the following steps:
a satellite air interface message caching and speed limiting processing method comprises the following steps:
acquiring and receiving a broadband message of a first rate sent by a high-speed channel;
the received broadband messages with the first rate are respectively cached in parallel in a preset parallel space according to different user identifications;
limiting the message data after parallel caching to a message with a second rate according to a first-in first-out principle, and sending out the message through a satellite signal; wherein the second rate is less than the first rate.
The satellite air interface message caching and speed limiting processing method comprises the following steps of:
the method comprises the steps of setting a caching rule for parallel caching through a preset parallel space in GGSN gateway equipment of a satellite terminal and server communication networking in advance, and sending out data according to a preset speed limit after setting the data to be cached in parallel.
The satellite air interface message caching and speed limiting processing method comprises the following steps of:
the method comprises the steps that a GGSN gateway device of a satellite terminal and server communication networking receives broadband messages at a first speed transmitted through an optical cable high-speed channel.
The satellite air interface message caching and speed limiting processing method comprises the following steps of respectively caching the received broadband messages with the first speed in parallel in a preset parallel space according to different user identifications:
acquiring the received broadband message of the first rate, and identifying different user identifications according to the source IP address of the broadband message of the first rate;
and according to the identified broadband messages with different user identifications, sequentially performing parallel caching in a preset parallel space according to a first-in first-out principle.
The satellite air interface message caching and speed limiting processing method comprises the following steps of limiting the message data subjected to parallel caching to a message with a second speed according to a first-in first-out principle, and sending out a satellite signal:
and sending the message data of the cache queue after parallel caching, the message with the speed limited to the second speed by the specified thread according to the first-in first-out principle, and the satellite signal.
The satellite air interface message caching and speed limiting processing method, wherein the step of respectively caching the received broadband messages at the first rate in parallel in a preset parallel space according to different user identifications further comprises:
controlling to start a network port packet receiving thread and reading a ready state of a received message from network port hardware;
acquiring and receiving a broadband message at a first rate sent by a high-speed channel, and acquiring a source IP address of the current broadband message, wherein different source IPs are different users;
if the current user does not apply for the buffer queue, the buffer queue of the user is established, and the number of the queues is 128;
when the current user applies for the buffer queue, and the number of the idle buffer queues of the current user is more than 0; after adding the GTP packet head to the current message, respectively performing parallel caching in the preset parallel space.
The satellite air interface message caching and speed limiting processing method is characterized in that the first rate is 1Gbps, the second rate is 320kbps, and 128 messages can be stored in each line space in a preset parallel space.
A satellite air interface message caching and speed limiting processing device comprises:
the acquisition receiving module is used for acquiring and receiving the broadband message of the first rate sent by the high-speed channel;
the cache module is used for caching the received broadband messages with the first rate in parallel in a preset parallel space according to different user identifications;
the speed-limiting sending control module is used for limiting the message data subjected to parallel caching into a message with a second speed according to a first-in first-out principle and sending the message through a satellite signal; wherein the second rate is less than the first rate.
A computer device, wherein the computer device comprises: the processing method comprises a memory, a processor and a satellite air interface message caching and speed limiting processing program which is stored on the memory and can run on the processor, wherein the satellite air interface message caching and speed limiting processing program realizes any step of the satellite air interface message caching and speed limiting processing method when being executed by the processor.
A storage medium is provided, wherein the storage medium stores a satellite air interface message caching and speed limiting processing program, and the satellite air interface message caching and speed limiting processing program realizes any one of the steps of the satellite air interface message caching and speed limiting processing method when executed by a processor.
The invention provides a satellite air interface message caching and speed limiting processing method; the method comprises the following steps: acquiring and receiving a broadband message of a first rate sent by a high-speed channel; carrying out parallel caching on the received broadband messages with the first rate in a preset parallel space according to different user identifications; limiting the message data after parallel caching to a message with a second rate according to a first-in first-out principle, and sending out the message through a satellite signal; wherein the second rate is less than the first rate. The invention provides a method for caching, forwarding and limiting the speed of a downlink message of a satellite terminal based on GGSN equipment, wherein the message of a satellite air interface is cached and limited according to a preset rule, so that the congestion rate is reduced, the channel efficiency is improved, and the packet loss rate is greatly reduced; the invention has simple and convenient operation, easy realization and low realization cost, and provides convenience for users to use.
Drawings
Fig. 1 is a communication networking diagram of a satellite terminal and a server according to an embodiment of the invention.
Fig. 2 is a flowchart of uplink data of a satellite terminal according to an embodiment of the present invention.
Fig. 3 is a flowchart illustrating downlink data of a satellite terminal according to an embodiment of the present invention.
Fig. 4 is a flowchart of a first preferred embodiment of a satellite air interface message caching and rate limiting processing method according to the present invention.
Fig. 5 is a flow chart of packet receiving, buffering and sending of a first preferred embodiment of the satellite air interface message buffering and rate limiting processing method according to the present invention.
Fig. 6 is a flow chart of a network port packet receiving thread of the satellite air interface message caching and speed limiting processing method of the present invention.
Fig. 7 is a network port packet-sending thread flow chart of the satellite air interface message caching and speed limiting processing method of the present invention.
Fig. 8 is a functional block diagram of the satellite air interface message caching and speed limiting processing device according to the present invention.
FIG. 9 is a block diagram of a computer apparatus according to a preferred embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The inventor finds that in the prior art, the message caching and speed limiting strategies for the air interface of the satellite are not good, congestion and frame loss are easily caused sometimes, the channel efficiency is poor, most of the channel efficiency is possibly discarded, and the user experience is influenced.
In order to solve the above problem, the present disclosure provides a method for caching, forwarding, and limiting a speed of a downlink packet of a satellite terminal based on GGSN equipment in an embodiment of the present disclosure.
Examples are: caching and limiting speed of an air interface from 1G speed to 40K of a high-speed broadband of the fiber channel, wherein the 1G speed is not equal to the 40K speed; the invention needs to cache, manage and the like the messages from the fast channel; the cache management of the preset rule can reduce the packet loss rate and improve the utilization rate.
Various non-limiting embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Satellite broadband communication, also known as multimedia satellite communication, refers to the processing and transmission of voice, data, images, and video over satellites. Because the bandwidth of a satellite communication system is much less than that of an optical fiber line, several tens of megabits per second is referred to as broadband communication. Providing greater bandwidth is only part of a satellite communications scheme, and satellite-based communications also provides opportunities for many new applications and new services. Because satellite resources are very expensive, the bandwidth given to each user is within 40KB/s, which is orders of magnitude slower than existing fiber, WIFI, etc. at rates of hundreds of M per second. If the satellite terminal is connected with the satellite, the GSC equipment converts the satellite terminal into a traditional optical fiber or network line link message to communicate with the final user or equipment. The 40KB/s satellite speed is not equal to the broadband rate of hundreds of M/s, and the message coming from the broadband must be buffered after being transmitted to the GGSN device, then forwarded to the GSC at the rate of 40KB/s, and finally uploaded to the satellite.
As shown in fig. 1, the satellite terminal 10 is a communication networking diagram with a server 17. The satellite terminal 10 is connected to the orbiting satellite 11 by a microwave radio signal of 320kbps, transmits data to the ground receiving station 12 via the orbiting satellite 11, and gives the data to the GSC device 13. The interface of the GSC device 13 with the satellite's ground receiving station 12 is over the air (air interface), also at 320kbps. The GGSN device 15 is connected to the second router 16 via a network cable or an optical fiber, and has a speed of 1Gbps. The first router 14 is connected to a GGSN gateway 15 and to a server 17 via a second router 16.
The GSC equipment is a gateway controller, and GSC Gray sequence code is an antenna interface in wireless communication, can realize wireless communication between the mobile equipment and a network, and is a American one-number paging code. It is an asynchronous dual rate paging format that can be transmitted in either a single mode or in this mode.
The GGSN 15 (Gateway GPRS Support Node) is a Gateway GPRS Support Node GGSN (Gateway GSN) that mainly functions as a Gateway and can be connected to a variety of different data networks, such as ISDN, PSPDN, LAN, etc. The GGSN (gateway GPRS Support Node) is a key part in the GPRS network and is used for interaction between the GPRS network and external packet switched networks (Internet, x.25, wimax).
Fig. 2 shows a flow chart of uplink data of the satellite terminal: the satellite terminal wirelessly transmits data to the orbiting satellite, and the satellite transmits the data to the ground receiving station and to the GSC equipment. Each router forwards the GTP message sent by the GSC equipment to the GGSN equipment. After the GGSN strips the GTP message header, the generated ordinary IP message is finally transmitted to the destination server through the second router. Because the GGSN is connected with the uplink router (second router) through the 1G network port, the uplink message does not need to be cached and can be directly sent out. A small ingress of 320kbps is unlikely to congest at the egress for a large egress of 1Gbps.
Two routers are adopted, and the overhead satellite network and the underground server network are not in a network segment and need to be respectively isolated by the routers.
Fig. 3 shows a flow chart of downlink data of the satellite terminal: the data flow of the server to the satellite terminal is opposite to the direction, and the difference is that a message sent to the GSC equipment by the GGSN must be added with a GTP message header firstly, and needs to be buffered and sent to the GSC equipment at the speed limited by 320kbps, otherwise, the message exceeding the sending speed of the GSC equipment is directly discarded on the side of the GSC equipment, and the GSC equipment does not buffer the message and does not have a discarding strategy. The invention adopts the GGSN gateway equipment to buffer the uplink message in parallel, thereby ensuring the reliable operation of the upper layer service and the fastest operation.
As shown in fig. 4, a method for processing a satellite air interface message buffer and speed limit according to a preferred embodiment of the present invention includes the following steps:
s100, acquiring and receiving a broadband message of a first rate sent by a high-speed channel;
in the embodiment of the invention, in the communication networking of a satellite terminal and a server, the downlink data flow of the satellite terminal is specially processed, namely the data flow from the server to the satellite terminal is that a GTP message header is required to be added to a message sent to GSC equipment by GGSN gateway equipment, and the message needs to be buffered and sent to the GSC equipment at the speed limited to 320kbps. A wideband packet at a first rate (e.g., 1 Gbps) is received over a high-speed channel.
Specifically, the satellite terminal and the GGSN gateway device of the server communication network receive the broadband message with the first speed (for example, 1 Gbps) sent by the optical cable high-speed channel.
Step S200, carrying out parallel caching on the received broadband messages with the first rate in a preset parallel space according to different user identifications;
in this step, the received broadband packets at the first rate (e.g., 1 Gbps) are cached in parallel in a preset parallel space according to different user identifiers.
Before specific implementation, the invention sets a caching rule for parallel caching through a preset parallel space in GGSN gateway equipment for communication networking of the satellite terminal and the server in advance, and sets data to be sent out according to a preset speed limit after parallel caching. For example, parallel space is set on the GGSN gateway device to buffer message data in parallel according to different users, so as to avoid congestion.
In specific implementation, the step S200 includes:
GGSN gateway equipment acquires the received broadband message with the first rate (for example, 1 Gbps), and identifies different user identifications according to the source IP address of the broadband message with the first rate; namely, in the embodiment of the present invention, different user identifiers can be identified according to the source IP address of the broadband packet at the first rate, so as to facilitate respective caching according to different users.
Namely, the invention can sequentially perform parallel cache in the preset parallel space according to the recognized broadband messages with different user identifications and the first-in first-out principle. Referring to fig. 5, in the implementation of the present invention, the router is connected to an eth0 gateway of the GGSN gateway device, and the GSC device is connected to an eth1 gateway of the GGSN gateway device. The common IP message of the router is sent to the eth0 port at the rate of 1Gbps, and the GGSN port packet receiving thread identifies different source IP addresses received by the eth0 port and determines the different source IP addresses as different users. The present invention preferably sets a buffer queue with a maximum length of 128 occupied by the same user data stream, and reduces the number of free buffer queues by one when receiving a specific user message. When the number of the idle queues is 0, the buffer queues are full, and the new incoming user messages cannot be continuously buffered. Meanwhile, a sending thread of the eth1 network port is provided, and all the buffer queues of each user are scanned ceaselessly. And if the current user has data in the buffer queue, sending the data to the eth1 port according to the total rate of 320kbps. And when a buffer message is sent, the buffer is emptied, and the number of buffer queues is increased by one.
Step S300, limiting the message data after parallel caching to a message with a second rate according to a first-in first-out principle, and sending the message through a satellite signal; wherein the second rate is less than the first rate.
That is, in the embodiment of the present invention, the message data after being cached in parallel is limited to the message of the second rate (for example, 320 kbps) according to the first-in first-out principle, and is sent out through the satellite signal. In this step, the buffered message data is limited to a message with a second rate according to the first-in first-out principle, and then the message is sent out through a satellite signal. Wherein the second rate is a rate at which satellite signals can be received.
Specifically, in this step, the message data of the parallel-buffered buffer queue, the message limited to the second rate by the designated thread according to the first-in first-out principle, and the satellite signal may be sent.
In a further embodiment, the satellite air interface message caching and speed limiting processing method according to the present invention, wherein the step of performing parallel caching on the received broadband message at the first rate in a preset parallel space according to different user identifiers respectively includes:
s201, controlling to start a network port packet receiving thread, and reading a ready state of a received message from network port hardware;
s202, acquiring and receiving a broadband message of a first rate sent by a high-speed channel, and acquiring a source IP address of the current broadband message, wherein different source IPs are different users;
s203, if the current user does not apply for the buffer queue, establishing the buffer queue of the user, wherein the number of the queues is 128;
s204, when the current user applies for a buffer queue, and the number of idle buffer queues of the current user is more than 0; after adding the GTP packet head to the current message, respectively performing parallel caching in the preset parallel space. The first rate is 1Gbps, the second rate is 320kbps, and 128 messages can be stored in each row space in a preset parallel space.
In specific implementation, as shown in fig. 6, the packet receiving thread processing of the present invention includes the following steps:
s11, starting a network port receiving thread;
step S12, receiving a message;
the network port packet receiving thread is started, and the ready state of the received message is read from the network port hardware;
and S13, acquiring the source IP of the current message to determine different clients.
Acquiring a source IP address of a current message, wherein different source IPs are different users;
step S14, judging whether a queue of the current user exists, if so, entering step S15, and if not, entering step S16;
step S15, judging whether the queue idle number of the current user is greater than 0, if the queue idle number of the current user is greater than 0, entering step S17, and if not, entering step S19;
step S16, creating the number of free queues =128 of the user queue; and proceeds to step S17
Step S17, storing the message into a buffer queue, and entering step S18; that is, in the present invention, after adding the GTP header to the current packet, the current packet is stored in the buffer queue, and the process goes to step S18;
s18, subtracting 1 from the number of the user buffer queues;
in the invention, the number of the current user buffer queues is reduced by one, and the step S20 is entered;
s19, discarding the current message; the invention can set enough multi-line parallel cache, can timely take out and send the cached messages of different users under normal condition, and has little discarding rate.
And step S20, after every 1000 various messages are received, sleeping the current thread for 1 millisecond.
In the invention, when the current user applies for the buffer queue, and the idle number of the buffer queue of the current user is more than 0; after adding the GTP header to the current packet, parallel caching is performed in the preset parallel space, and the caching sequentially sends packets according to the first-in first-out principle, where the packet sending process is shown in fig. 7.
As shown in fig. 7, the process of the network port packet sending thread according to the embodiment of the present invention includes the following steps:
j20, starting a current queue by the network port packet sending thread to be the first queue; and into J21;
step J21, the current receiving buffer queue is taken, and the step J22 is entered;
in the invention, a packet receiving and caching queue is taken by a network port packet sending thread;
step J22, judging whether the number of the idle rows in the pair is equal to 128, if so, entering step J23, and if not, entering step J26;
that is, in the present invention, if the queue idle number is equal to 128, it indicates that there is no valid message, the step J23 is entered, otherwise, the step J26 is entered;
step J23, adding 1 to the queue idle times, and entering step J24;
step J24, judging whether the queue idle times are less than 100;
if the queue is idle for less than 100 times, go to step J31, otherwise go to step J25;
step J25, destroying the current queue, recycling the current cache resource, and entering step J31;
step J26, taking n continuous messages, determining the number of n if the total length is 4096 bytes, and then entering step J27;
namely, n cache elements are continuously taken, the message length is less than 4096, and the maximum value of n is taken;
step J27; n messages are sent out through an eth1 network port at a time;
that is, in the embodiment of the present invention, the n buffer messages are sent out through the eth1 port, and the process proceeds to step J28.
Step J28, emptying the content of the n buffers, and increasing the number of the free buffers in the buffer queue by n; and proceeds to step J29;
step J29, judging whether the idle number of the pair of columns is equal to 128, if so, entering step J30, and if not, entering step J31;
namely, if the number of the current queue idleness is equal to 128, the next step J30 is carried out, otherwise, the step J31 is carried out;
step J30, the queue idle times are equal to 0, and step J31 is carried out to take the next queue as the current queue; then step J32 is carried out;
step J32, whether the current queue is the first queue or not, if yes, the step J33 is carried out, and if not, the step J21 is returned;
if the current queue is not the first queue, go to step J21;
step J33, entering a step J21 after the thread is dormant for 10 milliseconds;
and step J34, finishing the process when the package sending is finished.
As can be seen from the above, the embodiment of the present invention provides a method for caching, forwarding and limiting a downlink packet of a satellite terminal based on GGSN equipment, where the downlink packet of the satellite terminal is cached and limited according to a predetermined rule, so that a congestion rate is reduced, a channel efficiency is improved, and a packet loss rate is greatly reduced; the invention has simple and convenient operation, easy realization and low realization cost, and provides convenience for users.
Further, based on the above satellite air interface message caching and speed limiting processing method, as shown in fig. 8, the present invention further provides a satellite air interface message caching and speed limiting processing apparatus, where the apparatus includes:
an obtaining and receiving module 41, configured to obtain and receive a broadband packet at a first rate sent through a high-speed channel;
the cache module 42 is configured to perform parallel caching on the received broadband packet at the first rate in preset parallel spaces according to different user identifiers;
the speed-limiting sending control module 43 is used for limiting the message data after parallel caching to a message with a second speed according to a first-in first-out principle and sending the message through a satellite signal; wherein the second rate is less than the first rate, as described above.
In one embodiment, the present invention provides a computer device, which may be a terminal, having an internal structure as shown in fig. 9. The computer device includes a processor, a memory, a network interface, a display screen, and an input system connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a method of generating a natural language model. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input system of the computer equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the computer equipment, an external keyboard, a touch pad or a mouse and the like.
Those skilled in the art will appreciate that fig. 9 is a block diagram of only a portion of the structure associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
An embodiment of the present invention provides a computer device, which includes a memory and a processor, where the memory stores a computer program, and the processor implements the following steps when executing the computer program:
acquiring and receiving a broadband message of a first rate sent by a high-speed channel;
carrying out parallel caching on the received broadband messages with the first rate in a preset parallel space according to different user identifications;
limiting the message data after parallel caching to a message with a second rate according to a first-in first-out principle, and sending out the message through a satellite signal; wherein the second rate is less than the first rate.
Wherein, the step of obtaining and receiving the broadband message of the first rate sent by the high-speed channel comprises:
the method comprises the steps of setting a caching rule for parallel caching through a preset parallel space in GGSN gateway equipment of a satellite terminal and server communication networking in advance, and sending out data according to a preset speed limit after setting the data to be cached in parallel.
Wherein, the step of obtaining and receiving the broadband message of the first rate sent by the high-speed channel comprises:
the method comprises the steps that GGSN gateway equipment of a satellite terminal and server communication networking receives broadband messages with a first speed sent by an optical cable high-speed channel.
The satellite air interface message caching and speed limiting processing method comprises the following steps of respectively caching the received broadband messages with the first speed in parallel in a preset parallel space according to different user identifications:
acquiring the received broadband message at the first rate, and identifying different user identifications according to the source IP address of the broadband message at the first rate;
and according to the identified broadband messages with different user identifications, sequentially performing parallel caching in a preset parallel space according to a first-in first-out principle.
The step of limiting the message data after parallel caching to a message with a second rate according to a first-in first-out principle and sending the message through a satellite signal comprises the following steps:
and sending the message data of the cache queue after parallel caching, the message with the speed limited to the second speed by the specified thread according to the first-in first-out principle, and the satellite signal.
The satellite air interface message caching and speed limiting processing method, wherein the step of respectively caching the received broadband messages at the first rate in parallel in a preset parallel space according to different user identifications further comprises:
controlling to start a network port packet receiving thread and reading a ready state of a received message from network port hardware;
acquiring and receiving a broadband message at a first rate sent by a high-speed channel, and acquiring a source IP address of the current broadband message, wherein different source IPs are different users;
if the current user does not apply for the buffer queue, the buffer queue of the user is established, and the number of the queues is 128;
when the current user applies for the buffer queue, and the number of the idle buffer queues of the current user is more than 0; after adding the GTP packet head to the current message, respectively performing parallel caching in the preset parallel space.
The first rate is 1Gbps, the second rate is 320kbps, and 128 messages can be stored in each row of preset parallel space; as described above.
In summary, compared with the prior art, the embodiment of the invention has the following advantages:
the invention provides a satellite air interface message caching and speed limiting processing method and device, computer equipment and a readable storage medium, wherein the method comprises the following steps: acquiring and receiving a broadband message of a first rate sent by a high-speed channel; carrying out parallel caching on the received broadband messages with the first rate in a preset parallel space according to different user identifications; limiting the message data after parallel caching to a message with a second rate according to a first-in first-out principle, and sending out the message through a satellite signal; wherein the second rate is less than the first rate. The invention provides a method for caching, forwarding and limiting the speed of a downlink message of a satellite terminal based on GGSN equipment, wherein the message of a satellite air interface is cached and limited according to a preset rule, so that the congestion rate is reduced, the channel efficiency is improved, and the packet loss rate is greatly reduced; the invention has simple and convenient operation, easy realization and low realization cost, and provides convenience for users to use.
Of course, it will be understood by those skilled in the art that all or part of the processes of the methods of the above embodiments may be implemented by a computer program instructing relevant hardware (such as a processor, a controller, etc.), and the program may be stored in a computer readable storage medium, and when executed, the program may include the processes of the above method embodiments. The storage medium may be a memory, a magnetic disk, an optical disk, etc.
It will be understood that the invention is not limited to the examples described above, but that modifications and variations will occur to those skilled in the art in light of the above teachings, and that all such modifications and variations are considered to be within the scope of the invention as defined by the appended claims.
Claims (8)
1. A satellite air interface message caching and speed limiting processing method is characterized by comprising the following steps:
acquiring and receiving a broadband message of a first rate sent by a high-speed channel;
carrying out parallel caching on the received broadband messages with the first rate in a preset parallel space according to different user identifications;
limiting the message data after parallel caching to a message with a second rate according to a first-in first-out principle, and sending out the message through a satellite signal; wherein the second rate is less than the first rate;
the step of performing parallel caching on the received broadband messages at the first rate in a preset parallel space according to different user identifiers respectively comprises the following steps of:
acquiring the received broadband message at the first rate, and identifying different user identifications according to the source IP address of the broadband message at the first rate;
according to the identified broadband messages with different user identifications, sequentially performing parallel caching in a preset parallel space according to a first-in first-out principle;
the step of performing parallel caching on the received broadband messages at the first rate in a preset parallel space according to different user identifiers further includes:
controlling to start a network port packet receiving thread and reading a ready state of a received message from network port hardware;
acquiring and receiving a broadband message at a first rate sent by a high-speed channel, and acquiring a source IP address of the current broadband message, wherein different source IPs are different users;
if the current user does not apply for the buffer queue, the buffer queue of the user is established, and the number of the queues is 128;
when the current user applies for the buffer queue, and the idle number of the buffer queue of the current user is more than 0; respectively performing parallel caching in preset parallel spaces after adding a GTP packet head to the current message;
and destroying the buffer queue with the idle times of more than 100.
2. The satellite air interface message caching and speed limiting processing method according to claim 1, wherein the step of obtaining and receiving the broadband message at the first rate sent through the high-speed channel comprises:
the method comprises the steps of setting a caching rule for parallel caching through a preset parallel space in GGSN gateway equipment of a satellite terminal and server communication networking in advance, and sending out data according to a preset speed limit after setting the data to be cached in parallel.
3. The satellite air interface message caching and speed limiting processing method according to claim 1, wherein the step of acquiring and receiving the broadband message at the first rate sent through the high-speed channel comprises:
the method comprises the steps that GGSN gateway equipment of a satellite terminal and server communication networking receives broadband messages with a first speed sent by an optical cable high-speed channel.
4. The satellite air interface message caching and rate-limiting processing method according to claim 1, wherein the step of limiting the message data after parallel caching to a second rate according to a first-in first-out principle and sending out the message through a satellite signal comprises:
and sending the message data of the cache queue after parallel caching, the message with the speed limited to the second speed by the specified thread according to the first-in first-out principle, and the satellite signal.
5. The satellite air interface message caching and speed limiting processing method according to claim 1, wherein the first rate is 1Gbps, the second rate is 320kbps, and 128 messages can be stored in each line of preset parallel space.
6. A satellite air interface message caching and speed limiting processing device is characterized by comprising:
the acquisition receiving module is used for acquiring and receiving the broadband message of the first rate sent by the high-speed channel; the network port packet receiving device is also used for controlling and starting a network port packet receiving thread and reading a ready state of a received message from network port hardware; the system is also used for acquiring the received broadband message at the first rate, acquiring the broadband message at the first rate sent by the high-speed channel, acquiring the source IP address of the current broadband message, wherein different source IPs are different users, and identifying different user identifications according to the source IP address of the broadband message at the first rate;
the cache module is used for caching the received broadband messages at the first rate in parallel in a preset parallel space according to different user identifications; the system is also used for sequentially carrying out parallel caching in a preset parallel space according to the recognized broadband messages of different user identifications and a first-in first-out principle; if the current user does not apply for the buffer queue, the buffer queue of the user is established, and the number of the queues is 128; when the current user applies for the buffer queue, and the number of the idle buffer queues of the current user is more than 0; respectively performing parallel caching in preset parallel spaces after adding a GTP packet head to the current message; the system is also used for destroying the cache queue with the idle times of more than 100;
the speed-limiting sending control module is used for limiting the message data subjected to parallel caching into a message with a second speed according to a first-in first-out principle and sending the message through a satellite signal; wherein the second rate is less than the first rate.
7. A computer device, characterized in that the computer device comprises: the satellite air interface message caching and speed limiting processing program is stored on the memory and can run on the processor, and the steps of the satellite air interface message caching and speed limiting processing method according to any one of claims 1 to 5 are realized when the satellite air interface message caching and speed limiting processing program is executed by the processor.
8. A storage medium, wherein the storage medium stores a satellite air interface message caching and speed limiting processing program, and the satellite air interface message caching and speed limiting processing program, when executed by a processor, implements the steps of the satellite air interface message caching and speed limiting processing method according to any one of claims 1 to 5.
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| CN103593315A (en) * | 2013-11-20 | 2014-02-19 | 中国船舶重工集团公司第七二四研究所 | Direct multi-hard-disk high-speed parallel reading and writing method based on FPGA |
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