CN109639387B - Multi-system anti-interference filtering method based on digital system transmission - Google Patents
Multi-system anti-interference filtering method based on digital system transmission Download PDFInfo
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Abstract
The invention discloses a multi-system anti-interference filtering method based on digital system transmission, which specifically comprises the following steps: s1, firstly, respectively establishing a convergence layer network transmission system, an access layer network transmission system and a core layer network transmission system between a core layer and a convergence layer, a convergence layer and an access layer in the LTE transmission system and between core machine rooms in core layer core machine room units, relating to the technical field of network transmission. According to the multi-system anti-interference filtering method based on digital system transmission, the same anti-interference filtering system can be built among a plurality of transmission systems, the filtering conditions among the systems are integrally classified and controlled, the noise of data network transmission is greatly reduced, data disorder and distortion are prevented when interference is serious, the stability of LTE data transmission is guaranteed, the time for building filtering facilities among the LTE transmission systems is saved, and the LTE network transmission is guaranteed to be normally used by people.
Description
Technical Field
The invention relates to the technical field of network transmission, in particular to a multi-system anti-interference filtering method based on digital system transmission.
Background
An LTE mobile transmission network is generally divided into three layers, a core layer, a convergence layer, and an access layer, where the core layer node: the system is a machine room where a mobile network service local core network device and a trunk device are located, and main service devices comprise various switches, core routers, trunk transmission devices and the like. The transmission system between the core computer rooms is defined as a core layer network, a sink layer node: the main service equipment includes transmission network convergence layer equipment, IP metropolitan area network convergence node equipment, etc., the transmission system between the convergence node and the core node is defined as convergence layer network, and the access layer node: a transmission system from a service access node (such as an LTE base station, an indoor distribution system, etc.) to a sink node is defined as an access layer network, after an LTE technology is introduced, three layers of functional requirements are provided for a mobile backhaul network between interfaces, the LTE mobile backhaul network generally has 4 deployment schemes, and the three layers of functions are necessary functions of the LTE backhaul network no matter what scheme is adopted: the first scheme is as follows: the three-layer function is deployed in a CE router on the lower side of the core layer MME/S-GW to realize the forwarding of an X2 interface; scheme II: the three-layer function is deployed on a core layer transmission bearing device to realize the forwarding of an X2 interface; the third scheme is as follows: the three-layer function is deployed on a convergence layer transmission bearing device to realize the forwarding of an X2 interface; and the scheme is as follows: the three-layer function is deployed in the access layer transport bearer, and the forwarding of the X2 interface is realized in the convergence layer.
The current LTE system is in the transmission process, because the simultaneous transmission of data among a plurality of systems, the condition that signal interference occurs among each system can appear, the data noise that easily makes the transmission is great, can appear data disorder and distortion when disturbing seriously, influence LTE data transmission's stability greatly like this, can not realize establishing same anti-interference filter system between a plurality of transmission systems, come to carry out whole classification control to the filtering condition between each system, can't reach the purpose that reduces the cost of setting up of filter equipment, can not realize saving the time of setting up filtering facilities between the LTE transmission system, thereby it has brought very big inconvenience to give people's normal use LTE network transmission.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a multi-system anti-interference filtering method based on digital system transmission, which solves the problems that in the transmission process of the existing LTE system, due to simultaneous transmission of data among a plurality of systems, the signal interference among the systems occurs, the transmitted data is easy to generate larger noise, and when the interference is serious, the data is disordered and distorted, so that the stability of LTE data transmission is greatly influenced, the same anti-interference filtering system cannot be established among the plurality of transmission systems to integrally classify and control the filtering conditions among the systems, the construction cost of filtering equipment cannot be reduced, and the construction time of filtering facilities among the LTE transmission systems cannot be saved.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a multi-system anti-interference filtering method based on digital system transmission specifically comprises the following steps:
s1, firstly, respectively establishing a convergence layer network transmission system, an access layer network transmission system and a core layer network transmission system between a core layer and a convergence layer, a convergence layer and an access layer in an LTE transmission system and between core machine rooms in core layer core machine room units, and respectively controlling the convergence layer network transmission system, the access layer network transmission system and the core layer network transmission system in a one-to-one correspondence manner through a convergence layer management module, an access layer management module and a core layer management module;
s2, a core network access module in the core layer network transmission system can access core network data, and then the core network data is wirelessly transmitted to each core machine room in the core machine room unit through a mobile network switching routing module, and the anti-interference filtering processing is carried out through the anti-interference filtering system in the process, and the core data is transmitted to external network deployment equipment through a trunk transmission module;
s3, an access layer network access module in the convergence layer network transmission system can access data transmitted by the access layer network, and then the IP address and network data of the access data are wirelessly transmitted through a transmission network convergence module and an IP metropolitan area network convergence module respectively, the process can be subjected to anti-interference filtering processing through an anti-interference filtering system, and meanwhile, the convergence data are transmitted into a core layer network through a core network sending module to be deployed;
s4, an LTE base station data transmission unit in the access layer network transmission system can transmit data of each external base station to the access layer system, and simultaneously, an indoor user group is accessed into the system through an indoor distribution network access module to form a plurality of converged nodes;
s5, in the steps S2-S3, an LTE mobile transmission network data channel access module in the anti-interference filtering system can access each system layer network into the anti-interference filtering system, then each interference factor is classified and a corresponding interference mathematical model is built through a multi-system interference classification modeling module, then a robust filtering algorithm corresponding to the interference mathematical model is formed through a robust filtering algorithm building module, then a corresponding filtering closed-loop system is built through a filtering closed-loop system building module, finally each network data is filtered and corrected through a filtering solving gain correcting module, and the filtering processing of the data can be completed after the processing is completed.
Preferably, in step S1, the core layer management module is respectively in bidirectional connection with the core layer network transmission system, the core room unit, and the aggregation layer network transmission system, and the core layer network transmission system is in bidirectional connection with the core room unit, where the core room unit is composed of N core rooms.
Preferably, in step S1, the convergence layer management module is respectively in bidirectional connection with the convergence layer network transmission system and the access layer network transmission system, and the access layer management module is in bidirectional connection with the access layer network transmission system.
Preferably, in step S5, the anti-interference filtering system is respectively in bidirectional connection with the core layer network transmission system, the aggregation layer network transmission system, and the access layer network transmission system.
Preferably, in step S5, the anti-interference filter system includes an LTE mobile transmission network data channel access module, a multi-system interference classification modeling module, a robust filter algorithm building module, a filter closed-loop system building module, and a filter solution gain correction module, an output end of the LTE mobile transmission network data channel access module is connected to an input end of the multi-system interference classification modeling module, an output end of the multi-system interference classification modeling module is connected to an input end of the robust filter algorithm building module, an output end of the robust filter algorithm building module is connected to an input end of the filter closed-loop system building module, and an output end of the filter closed-loop system building module is connected to an input end of the filter solution gain correction module.
Preferably, the core layer network transmission system in step S2 includes a core network access module, a mobile network switching routing module, and a trunk transmission module, where an output end of the core network access module is connected to an input end of the mobile network switching routing module, and an output end of the mobile network switching routing module is connected to an input end of the trunk transmission module.
Preferably, the convergence layer network transmission system comprises an access layer network access module, a transmission network convergence module, an IP metropolitan area convergence module and a core network sending module, wherein an output end of the access layer network access module is connected with an input end of the transmission network convergence module, an output end of the transmission network convergence module is connected with an input end of the IP metropolitan area convergence module, and an output end of the IP metropolitan area convergence module is connected with an input end of the core network sending module.
Preferably, the access layer network transmission system comprises an LTE base station data transmission unit, an indoor distribution network access module and a sink node sending module, wherein the output end of the LTE base station data transmission unit is connected with the input end of the indoor distribution network access module, and the output end of the indoor distribution network access module is connected with the input end of the sink node sending module.
(III) advantageous effects
The invention provides a multi-system anti-interference filtering method based on digital system transmission. Compared with the prior art, the method has the following beneficial effects: the multi-system anti-interference filtering method based on LTE system transmission specifically comprises the following steps: s1, firstly, a core layer network transmission system, an access layer network transmission system and a core layer network transmission system are respectively established between the core layer and the aggregation layer, the aggregation layer and the access layer in the LTE transmission system, and between the core machine rooms in the core layer core machine room unit, S2 core network access modules in the core layer network transmission system can access core network data, then the core network data are transmitted to the core machine rooms in the core machine room unit by a mobile network switching route module in a wireless way, S3 access layer network access modules in the aggregation layer network transmission system can access data transmitted from the access layer network, then IP addresses and network data of the access data are transmitted by the transmission network aggregation module and the IP metropolitan area network aggregation module in a wireless way, and S4 LTE base station data transmission units in the access layer network transmission system can transmit data of each external base station to the access layer system, simultaneously, an indoor user group is accessed into the system through an indoor distribution network access module to form a plurality of converged nodes, the process can carry out anti-interference filtering processing through an anti-interference filtering system, S5, the LTE mobile transmission network data channel access module in the anti-interference filtering system can access each system layer network into the anti-interference filtering system in the steps S2-S3, then each interference factor is classified and a corresponding interference mathematical model is established through a multi-system interference classification modeling module, the same anti-interference filtering system can be established among a plurality of transmission systems to carry out integral classification control on filtering conditions among the systems, the aim of reducing the construction cost of filtering equipment is well achieved, the occurrence of signal interference among the systems due to simultaneous transmission of data among the systems is avoided, the noise of data network transmission is greatly reduced, data disorder and distortion are prevented when interference is serious, the stability of LTE data transmission is guaranteed, the time for building filtering facilities between LTE transmission systems is saved well, and the LTE network transmission is guaranteed to be normally used by people.
Drawings
FIG. 1 is a schematic block diagram of the architecture of the system of the present invention;
FIG. 2 is a schematic block diagram of a core layer network transmission system according to the present invention;
FIG. 3 is a schematic block diagram of the architecture of an aggregation layer network transmission system according to the present invention;
fig. 4 is a schematic block diagram of the structure of an access layer network transmission system according to the present invention;
fig. 5 is a schematic block diagram of the structure of the anti-interference filtering system of the present invention.
Detailed Description
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.
Referring to fig. 1-5, an embodiment of the present invention provides a technical solution: a multi-system anti-interference filtering method based on digital system transmission specifically comprises the following steps:
s1, firstly, respectively establishing a convergence layer network transmission system, an access layer network transmission system and a core layer network transmission system between a core layer and a convergence layer, a convergence layer and an access layer in an LTE transmission system and between core machine rooms in core layer core machine room units, and respectively controlling the convergence layer network transmission system, the access layer network transmission system and the core layer network transmission system in a one-to-one correspondence manner through a convergence layer management module, an access layer management module and a core layer management module;
s2, a core network access module in the core layer network transmission system can access core network data, and then the core network data is wirelessly transmitted to each core machine room in the core machine room unit through a mobile network switching routing module, and the anti-interference filtering processing is carried out through the anti-interference filtering system in the process, and the core data is transmitted to external network deployment equipment through a trunk transmission module;
s3, an access layer network access module in the convergence layer network transmission system can access data transmitted by the access layer network, and then the IP address and network data of the access data are wirelessly transmitted through a transmission network convergence module and an IP metropolitan area network convergence module respectively, the process can be subjected to anti-interference filtering processing through an anti-interference filtering system, and meanwhile, the convergence data are transmitted into a core layer network through a core network sending module to be deployed;
s4, an LTE base station data transmission unit in the access layer network transmission system can transmit data of each external base station to the access layer system, and simultaneously, an indoor user group is accessed into the system through an indoor distribution network access module to form a plurality of converged nodes;
s5, in the steps S2-S3, an LTE mobile transmission network data channel access module in the anti-interference filtering system can access each system layer network into the anti-interference filtering system, then each interference factor is classified and a corresponding interference mathematical model is built through a multi-system interference classification modeling module, then a robust filtering algorithm corresponding to the interference mathematical model is formed through a robust filtering algorithm building module, then a corresponding filtering closed-loop system is built through a filtering closed-loop system building module, finally each network data is filtered and corrected through a filtering solving gain correcting module, and the filtering processing of the data can be completed after the processing is completed.
In the present invention, in step S1, the core layer management module is respectively in bidirectional connection with the core layer network transmission system, the core room unit, and the convergence layer network transmission system, and the core layer network transmission system is in bidirectional connection with the core room unit, where the core room unit is composed of N core rooms.
In the present invention, in step S1, the convergence layer management module is respectively in bidirectional connection with the convergence layer network transmission system and the access layer network transmission system, and the access layer management module is in bidirectional connection with the access layer network transmission system.
In the present invention, in step S5, the anti-interference filtering system is respectively connected to the core layer network transmission system, the aggregation layer network transmission system, and the access layer network transmission system in a bidirectional manner.
In the invention, the anti-interference filtering system in step S5 comprises an LTE mobile transmission network data channel access module, a multi-system interference classification modeling module, a robust filtering algorithm building module, a filtering closed-loop system building module and a filtering solving gain correction module, wherein the output end of the LTE mobile transmission network data channel access module is connected with the input end of the multi-system interference classification modeling module, the output end of the multi-system interference classification modeling module is connected with the input end of the robust filtering algorithm building module, the output end of the robust filtering algorithm building module is connected with the input end of the filtering closed-loop system building module, and the output end of the filtering closed-loop system building module is connected with the input end of the filtering solving gain correction module.
In the present invention, the core layer network transmission system in step S2 includes a core network access module, a mobile network switching routing module, and a trunk transmission module, where an output end of the core network access module is connected to an input end of the mobile network switching routing module, and an output end of the mobile network switching routing module is connected to an input end of the trunk transmission module.
The convergence layer network transmission system comprises an access layer network access module, a transmission network convergence module, an IP metropolitan area convergence module and a core network sending module, wherein the output end of the access layer network access module is connected with the input end of the transmission network convergence module, the output end of the transmission network convergence module is connected with the input end of the IP metropolitan area convergence module, and the output end of the IP metropolitan area convergence module is connected with the input end of the core network sending module.
In the invention, the access layer network transmission system comprises an LTE base station data transmission unit, an indoor distribution network access module and a sink node sending module, wherein the output end of the LTE base station data transmission unit is connected with the input end of the indoor distribution network access module, and the output end of the indoor distribution network access module is connected with the input end of the sink node sending module.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A multisystem anti-interference filtering method based on digital system transmission is characterized in that: the method specifically comprises the following steps:
s1, firstly, respectively establishing a convergence layer network transmission system, an access layer network transmission system and a core layer network transmission system between a core layer and a convergence layer, a convergence layer and an access layer in an LTE transmission system and between core machine rooms in core layer core machine room units, and respectively controlling the convergence layer network transmission system, the access layer network transmission system and the core layer network transmission system in a one-to-one correspondence manner through a convergence layer management module, an access layer management module and a core layer management module;
s2, a core network access module in the core layer network transmission system can access core network data, and then the core network data is wirelessly transmitted to each core machine room in the core machine room unit through a mobile network switching routing module, and the anti-interference filtering processing is carried out through the anti-interference filtering system in the process, and the core data is transmitted to external network deployment equipment through a trunk transmission module;
s3, an access layer network access module in the convergence layer network transmission system can access data transmitted by the access layer network, and then the IP address and network data of the access data are wirelessly transmitted through a transmission network convergence module and an IP metropolitan area network convergence module respectively, the process can be subjected to anti-interference filtering processing through an anti-interference filtering system, and meanwhile, the convergence data are transmitted into a core layer network through a core network sending module to be deployed;
s4, an LTE base station data transmission unit in the access layer network transmission system can transmit data of each external base station to the access layer system, and simultaneously, an indoor user group is accessed into the system through an indoor distribution network access module to form a plurality of converged nodes;
s5, in the steps S2-S3, an LTE mobile transmission network data channel access module in the anti-interference filtering system can access each system layer network into the anti-interference filtering system, then each interference factor is classified and a corresponding interference mathematical model is built through a multi-system interference classification modeling module, then a robust filtering algorithm corresponding to the interference mathematical model is formed through a robust filtering algorithm building module, then a corresponding filtering closed-loop system is built through a filtering closed-loop system building module, finally each network data is filtered and corrected through a filtering solving gain correcting module, and the filtering processing of the data can be completed after the processing is completed.
2. The method of claim 1, wherein the method comprises the following steps: in step S1, the core layer management module is respectively in bidirectional connection with the core layer network transmission system, the core room units, and the convergence layer network transmission system, and the core layer network transmission system is in bidirectional connection with the core room units, where the core room units are composed of N core rooms.
3. The method of claim 1, wherein the method comprises the following steps: in step S1, the convergence layer management module is in bidirectional connection with the convergence layer network transmission system and the access layer network transmission system, respectively, and the access layer management module is in bidirectional connection with the access layer network transmission system.
4. The method of claim 1, wherein the method comprises the following steps: in step S5, the anti-interference filtering system is connected to the core layer network transmission system, the aggregation layer network transmission system, and the access layer network transmission system in a bi-directional manner.
5. The method of claim 1, wherein the method comprises the following steps: the anti-interference filtering system in the step S5 includes an LTE mobile transmission network data channel access module, a multi-system interference classification modeling module, a robust filtering algorithm building module, a filtering closed-loop system building module, and a filtering solving gain correction module, wherein an output end of the LTE mobile transmission network data channel access module is connected to an input end of the multi-system interference classification modeling module, an output end of the multi-system interference classification modeling module is connected to an input end of the robust filtering algorithm building module, an output end of the robust filtering algorithm building module is connected to an input end of the filtering closed-loop system building module, and an output end of the filtering closed-loop system building module is connected to an input end of the filtering solving gain correction module.
6. The method of claim 1, wherein the method comprises the following steps: the core layer network transmission system in step S2 includes a core network access module, a mobile network switching routing module, and a trunk transmission module, where an output end of the core network access module is connected to an input end of the mobile network switching routing module, and an output end of the mobile network switching routing module is connected to an input end of the trunk transmission module.
7. The method of claim 1, wherein the method comprises the following steps: the convergence layer network transmission system comprises an access layer network access module, a transmission network convergence module, an IP metropolitan area convergence module and a core network sending module, wherein the output end of the access layer network access module is connected with the input end of the transmission network convergence module, the output end of the transmission network convergence module is connected with the input end of the IP metropolitan area convergence module, and the output end of the IP metropolitan area convergence module is connected with the input end of the core network sending module.
8. The method of claim 1, wherein the method comprises the following steps: the access layer network transmission system comprises an LTE base station data transmission unit, an indoor distribution network access module and a sink node sending module, wherein the output end of the LTE base station data transmission unit is connected with the input end of the indoor distribution network access module, and the output end of the indoor distribution network access module is connected with the input end of the sink node sending module.
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| CN109041237B (en) * | 2018-09-04 | 2023-01-10 | 重庆金美通信有限责任公司 | LTE system transmission anti-interference resource allocation decision method |
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| CN102348207A (en) * | 2010-07-29 | 2012-02-08 | 华为技术有限公司 | Wireless communication system, machine type communication (MTC) device and gateway |
| CN104022927A (en) * | 2014-05-19 | 2014-09-03 | 武汉邮电科学研究院 | Fixed mobile convergence wavelength division access ring and access method |
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