CN110475288B - Method, device and system for transmitting signaling message of satellite network preferentially - Google Patents
Method, device and system for transmitting signaling message of satellite network preferentially Download PDFInfo
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- CN110475288B CN110475288B CN201910728171.9A CN201910728171A CN110475288B CN 110475288 B CN110475288 B CN 110475288B CN 201910728171 A CN201910728171 A CN 201910728171A CN 110475288 B CN110475288 B CN 110475288B
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- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
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- H04W28/10—Flow control between communication endpoints
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
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Abstract
The invention discloses a method for preferentially transmitting signaling messages of a satellite network, which comprises the following steps: classifying the signaling messages in the received signaling messages and service messages to obtain low-layer signaling messages and high-layer signaling messages; directly transmitting the low-layer signaling message to a satellite port driving module; filtering the high-level signaling message and the service message to mark the high-level signaling message as the highest priority and mark the service message as the second priority; and sequentially sending corresponding messages to a satellite port driving module according to the priority sequence of the high-level signaling message and the corresponding identification of the service message. A related apparatus and system are also disclosed. The invention introduces a mechanism that the low-layer signaling message directly reaches the satellite port driving module, improves the real-time property of low-layer signaling message transmission, and thus improves the online stability of the satellite terminal equipment in the satellite communication network.
Description
Technical Field
The invention relates to a transmission optimization technology of a satellite communication network, in particular to a method, a device and a system for preferentially transmitting a signaling message of a satellite network.
Background
In a satellite communication network, data messages are composed of signaling messages and service messages. Wherein: the signaling message bears a data message between the satellite terminal equipment and the satellite communication scheduling center; the service message carries data messages between users. In the satellite terminal equipment, the signaling message and the service message are transmitted in a network protocol stack module according to a first-in first-out rule. When the number of the service messages is increased, the signaling messages cannot be transmitted to the satellite port driving module in time due to great probability, and even message congestion occurs, so that the satellite terminal equipment is separated from the control of the satellite communication scheduling center. Therefore, the prior transmission of the signaling message is directly related to the online stability of the satellite terminal equipment in the satellite communication network.
In order to solve the problem, a common solution is to identify a signaling message and a service message by filtering a data message, and mark the signaling message as the highest priority, so that the signaling message is preferentially transmitted in a network protocol stack module, but a large amount of service messages are flushed into the network protocol stack module for a long time, which results in that the messages cannot be solved in a scene of congestion of the network protocol stack module.
Disclosure of Invention
The invention mainly aims at the defects of the related prior art and provides a method, a device and a system for preferentially transmitting a satellite network signaling message, introduces a mechanism that a low-layer signaling message directly reaches a satellite port driving module, and improves the real-time property of transmitting the low-layer signaling message, thereby improving the online stability of satellite terminal equipment in a satellite communication network.
In order to achieve the above object, the present invention employs the following techniques:
a method for transmitting signaling message of satellite network preferentially is characterized in that: the method comprises the following steps:
classifying the received signaling messages to obtain low-layer signaling messages and high-layer signaling messages except the low-layer signaling messages;
directly transmitting the low-layer signaling message to a satellite port driving module;
filtering the received service message and the high-level signaling message to mark the high-level signaling message as the highest priority and mark the service message as the second priority;
and sequentially sending corresponding messages to a satellite port driving module according to the priority sequence of the high-level signaling message and the corresponding identification of the service message.
Furthermore, the satellite port driving module is used for controlling the satellite port equipment in the satellite terminal equipment and realizing data communication between software and hardware.
Further, the low-layer signaling message refers to a signaling message used for a network access request, a logout request, an online maintenance, and a resource application of the slave satellite terminal device.
Further, the filtering process is completed by means of iptables data message classification and Tc flow control.
Further, the direct transmission of the low-layer signaling message to the satellite port driving module is completed by adopting a netlink mode.
A device for preferentially transmitting signaling messages in a satellite network, comprising:
a signaling message classification module, configured to classify received signaling messages to obtain a low-layer signaling message and a high-layer signaling message other than the low-layer signaling message;
the direct transmission module is used for receiving the low-layer signaling message sent by the signaling message classification module and directly transmitting the low-layer signaling message to the satellite port driving module;
a data message filtering module, configured to receive a service message and the high-level signaling message sent by the signaling message classifying module, and filter the high-level signaling message and the service message, so as to identify the high-level signaling message as a highest priority and mark the service message as a second priority;
and the network protocol stack module is used for receiving the identified high-level signaling message and the identified service message transmitted by the data message filtering module and sequentially transmitting the high-level signaling message and the service message to the satellite port driving module according to the priority sequence corresponding to the high-level signaling message and the service message.
Further, the data packet filtering module is configured to perform filtering processing on the high-level signaling packet and the service packet by classifying iptables data packets and combining Tc flow control, so as to identify the high-level signaling packet as a highest priority and mark the service packet as a second priority.
Further, the direct transmission module is configured to directly transmit the low-level signaling packet to the satellite interface driver module in a netlink manner.
A system for prioritized delivery of signaling messages over a satellite network, comprising:
the slave satellite terminal equipment is used for receiving a service message sent by a user and generating a signaling message; the satellite network signaling message priority transmission device is used for transmitting the satellite network signaling message; and the slave satellite terminal equipment sends the service message and the signaling message to the satellite network signaling message priority transmission device.
The invention has the beneficial effects that:
compared with the prior art, the invention introduces a guarantee mechanism of priority transmission for the low-level signaling message in the satellite communication network, provides a more efficient low-level signaling transmission method/device/system, improves the real-time performance of transmitting the low-level signaling message, and improves the online stability of the slave satellite terminal equipment in the satellite communication network.
Drawings
FIG. 1 is a flow chart of the method of the present invention.
FIG. 2 is a block diagram of the apparatus of the present invention.
Fig. 3 is a diagram of a satellite network architecture for use with the system of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 shows a flow chart of a specific embodiment of a method for preferentially transmitting a satellite network signaling message according to the present invention.
(1) And receiving a signaling message and a service message. Specifically, a data message sent from the satellite terminal device is received, wherein a service message in the data message is sent to and received by the slave satellite terminal device by a user, and a signaling message in the data message is generated from the slave satellite terminal device.
(2) And classifying the received signaling message to obtain a low-layer signaling message and a high-layer signaling message.
The low-layer signaling message is a signaling message used for a network access request, a logout request, online maintenance and resource application of the slave satellite terminal equipment; the high layer signaling message refers to other signaling messages except the low layer signaling message.
(3) And directly transmitting the low-layer signaling message to a satellite port driving module, wherein the direct transmission can be completed by adopting a netlink mode. The satellite port driving module is used for controlling satellite port equipment in the satellite terminal equipment and realizing data communication between software and hardware;
(4) Filtering the classified high-level signaling message and the received service message, specifically classifying the high-level signaling message through iptables data message, and finishing filtering by combining Tc flow control so as to mark the high-level signaling message as the highest priority and mark the service message as the second priority;
(5) And sequentially sending corresponding messages to a satellite port driving module according to the priority sequence of the high-level signaling message and the corresponding identification of the service message.
(6) And the satellite port driving module is used for sending the received data message to a satellite network.
Therefore, the priority transmission of the signaling message is realized, the priority transmission of the low-layer signaling message is guaranteed, the real-time performance of transmitting the low-layer signaling message is improved, and the online stability of the slave satellite terminal equipment in the satellite communication network is improved.
Fig. 2 shows a block diagram of a satellite network signaling message priority transmission apparatus, which includes a signaling message classification module, a direct transmission module, a data message filtering module, and a network protocol stack module.
The operation method/implementation corresponding to the embodiment described in fig. 2 is:
(1) And the signaling message classification module is used for receiving the signaling message sent from the satellite terminal equipment and classifying the signaling message to obtain a low-layer signaling message and a high-layer signaling message. Specifically, the signaling message is generated by the slave satellite terminal equipment.
Specifically, the low-layer signaling message is a signaling message used for a network access request, a logout request, an online maintenance and a resource application of the slave satellite terminal device; the high layer signaling message refers to other signaling messages except the low layer signaling message.
(2) And the direct transmission module is used for directly transmitting the low-layer signaling message transmitted by the signaling message classification module to the satellite port driving module in a netlink mode.
(3) And the data message filtering module is used for receiving the high-level signaling message transmitted by the signaling message classifying module and the service message transmitted from the satellite terminal equipment. The service message, specifically, the user, is sent to the slave satellite terminal device and received by the slave satellite terminal device.
The data message filtering module filters a high-level signaling message and a service message, and particularly can finish filtering by means of iptables data message classification and Tc flow control so as to mark the high-level signaling message as the highest priority and mark the service message as the second priority; and then sending the identified high-level signaling message and the identified service message to a network protocol stack module.
(4) And the network protocol stack module is used for receiving the identified high-level signaling message and the identified service message transmitted by the data message filtering module and sequentially transmitting the corresponding messages to the satellite port driving module according to the priority order corresponding to the high-level signaling message and the service message.
(5) And the satellite port driving module is used for sending the received data message to a satellite network.
The satellite network signaling message priority transmission system provided by the invention comprises slave satellite terminal equipment and a satellite network signaling message priority transmission device of the embodiment shown in figure 2.
Fig. 3 is a structure diagram of a satellite network applied to the satellite network signaling message priority delivery system according to this embodiment.
(1) The slave satellite terminal equipment is used for receiving a service message sent by a user and generating a signaling message; and the slave satellite terminal equipment sends the service message and the signaling message to the satellite network signaling message priority transmission device.
(2) The satellite network signaling message priority transmission device receives the service message and the signaling message and performs the following operations:
and (2-1) receiving the signaling message sent from the satellite terminal equipment through a signaling message classification module, and classifying the signaling message to obtain a low-layer signaling message and a high-layer signaling message. Specifically, the signaling message is generated by the slave satellite terminal equipment.
Specifically, the low-layer signaling message is a signaling message used for a network access request, a logout request, an online maintenance and a resource application of the slave satellite terminal device; the high layer signaling message refers to other signaling messages except the low layer signaling message.
And (2-2) directly transmitting the low-layer signaling message transmitted by the signaling message classification module to the satellite port driving module in a netlink mode through the direct transmission module.
And (2-3) receiving the high-level signaling message transmitted by the signaling message classification module and the service message transmitted from the satellite terminal equipment through the data message filtering module. The service message, specifically, the user, is sent to the slave satellite terminal device and received by the slave satellite terminal device. Filtering the high-level signaling message and the service message through a data message filtering module, specifically classifying the high-level signaling message and the service message through iptables data messages, and finishing filtering by combining Tc flow control so as to mark the high-level signaling message as the highest priority and mark the service message as a second priority; and then sending the identified high-level signaling message and the service message to a network protocol stack module.
And (2-4) receiving the identified high-level signaling message and the identified service message transmitted by the data message filtering module through a network protocol stack module, and sequentially transmitting corresponding messages to a satellite port driving module according to the priority order corresponding to the high-level signaling message and the service message.
(3) The satellite port driving module preferentially sends the low-layer signaling message to the satellite network, then sends the high-layer signaling message to the satellite network, and then sends the service message to the satellite network.
(4) The main satellite terminal equipment receives the low-layer signaling message, the high-layer signaling message and the service message sent by the satellite network, then sends the low-layer signaling message and the high-layer signaling message to the satellite communication dispatching center, and sends the service message to a user.
Compared with the prior art, the invention introduces a priority transmission guarantee mechanism for the low-layer signaling message in the satellite communication network, provides a more efficient low-layer signaling transmission method/device/system, improves the real-time property of transmitting the low-layer signaling message, and improves the online stability of the slave satellite terminal equipment in the satellite communication network.
Claims (5)
1. A method for transmitting signaling message of satellite network preferentially is characterized in that: the method comprises the following steps:
classifying the received signaling messages to obtain low-layer signaling messages and high-layer signaling messages except the low-layer signaling messages; the low-layer signaling message is used for a network access request, a logout request, online maintenance and resource application of the slave satellite terminal equipment;
directly transmitting the low-layer signaling message to a satellite port driving module by adopting a netlink mode;
filtering the received service message and the high-level signaling message to mark the high-level signaling message as the highest priority and mark the service message as the second priority;
and sequentially sending the high-level signaling message and the service message to a satellite port driving module according to the priority sequence of the corresponding identifications of the high-level signaling message and the service message.
2. The method of claim 1, wherein the method comprises: the filtering processing is completed by means of iptables data message classification and Tc flow control.
3. A device for preferentially transmitting signaling messages in a satellite network, comprising:
a signaling message classification module, configured to classify a received signaling message to obtain a lower layer signaling message and a higher layer signaling message other than the lower layer signaling message; the low-layer signaling message is used for a network access request, a logout request, online maintenance and resource application of the slave satellite terminal equipment;
a direct transmission module, configured to receive the low-level signaling message sent by the signaling message classification module, and directly transmit the low-level signaling message to a satellite interface driver module in a netlink manner;
a data message filtering module, configured to receive a service message and the high-level signaling message sent by the signaling message classifying module, and filter the high-level signaling message and the service message, so as to identify the high-level signaling message as a highest priority and mark the service message as a second priority;
and the network protocol stack module is used for receiving the identified high-level signaling message and the identified service message transmitted by the data message filtering module and sequentially transmitting the high-level signaling message and the service message to the satellite port driving module according to the priority sequence corresponding to the high-level signaling message and the service message.
4. The device for preferentially transmitting the signaling messages of the satellite network according to claim 3, wherein the data message filtering module is configured to perform filtering processing on the high-level signaling messages and the service messages by means of iptables data message classification in combination with Tc flow control, so as to identify the high-level signaling messages as a highest priority and identify the service messages as a second priority.
5. A system for prioritized delivery of signaling messages over a satellite network, comprising:
the slave satellite terminal equipment is used for receiving a service message sent by a user and generating a signaling message; and
the satellite network signaling message priority delivery apparatus according to claim 3 or 4;
and the slave satellite terminal equipment sends the service message and the signaling message to the satellite network signaling message priority transmission device.
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| CN103595461A (en) * | 2013-10-17 | 2014-02-19 | 航天恒星科技有限公司 | Super-large scale VSAT system frame structure and resource allocation method |
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| US9270559B2 (en) * | 2009-01-28 | 2016-02-23 | Headwater Partners I Llc | Service policy implementation for an end-user device having a control application or a proxy agent for routing an application traffic flow |
| US8949941B2 (en) * | 2010-11-18 | 2015-02-03 | The Boeing Company | Geothentication based on network ranging |
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| CN102883374A (en) * | 2012-10-15 | 2013-01-16 | 航天恒星科技有限公司 | Resource distribution method for satellite communication system |
| CN103595461A (en) * | 2013-10-17 | 2014-02-19 | 航天恒星科技有限公司 | Super-large scale VSAT system frame structure and resource allocation method |
| CN105874842A (en) * | 2013-10-30 | 2016-08-17 | 交互数字专利控股公司 | Systems and methods for handling priority services congestion |
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