CN107948207A - A kind of track traffic broadband cluster system and communication means - Google Patents
A kind of track traffic broadband cluster system and communication means Download PDFInfo
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- CN107948207A CN107948207A CN201810010424.4A CN201810010424A CN107948207A CN 107948207 A CN107948207 A CN 107948207A CN 201810010424 A CN201810010424 A CN 201810010424A CN 107948207 A CN107948207 A CN 107948207A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/51—Discovery or management thereof, e.g. service location protocol [SLP] or web services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
- H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
- H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/16—Communication-related supplementary services, e.g. call-transfer or call-hold
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- 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]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/08—Trunked mobile radio systems
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Abstract
This application provides a kind of track traffic broadband cluster system and communication means, track traffic broadband cluster system includes：Fixed station, core net and other terminals；Fixed station is connected by cable and D interface with core net, and core net is connected with other terminals, and fixed station is communicated by core net with other terminals, completes colony dispatching service.In this application, fixed station carries out wired connection by cable and D interface with core net, being capable of effective promoting transmission rate, and fixed station is influenced small by the transmission mode of cable and D interface and core net wired connection by radio transmission characteristics, transmission environment and electromagnetic environment, the stability of transmission can be effectively improved.
Description
Technical field
This application involves technical field of rail traffic, more particularly to a kind of track traffic broadband cluster system and communication party
Method.
Background technology
Track traffic broadband cluster system is the track wireless communication system for the purpose of production scheduling, commander, management.Rail
Cluster fixed station in road traffic broadband cluster system is the primary operational platform of Platform attendant, on duty installed in subway station
Room, rolling stock section's duty room.Cluster fixed station is initiated each by other terminals of the core net into track traffic broadband cluster system
Kind calling, or their calling is received, to establish voice, video and data communication between these users；And can
Realize scheduling, other functions such as information management and interface display.
But current cluster fixed station causes cluster fixed station to lead to other terminals by wave point core network access
Letter is low there are transmission rate and the problem of stability is poor.
The content of the invention
In order to solve the above technical problems, the embodiment of the present application provides a kind of track traffic broadband cluster system and communication party
Method, to achieve the purpose that promoting transmission rate and improve transmission stability, technical solution is as follows：
A kind of track traffic broadband cluster system, including：Fixed station, core net and other terminals；
The fixed station is connected by cable and D interface with the core net, and the core net connects with other terminals
Connect；
The fixed station is communicated by the core net with other terminals, completes colony dispatching service.
Preferably, the chain of command agreement stack of the D interface includes：Session Initiation Protocol layer, udp layer, ip protocol layer, L2 associations
Discuss layer and L1 protocol layers；
The user face protocol stack of the D interface includes：Real-time Transport Protocol layer, udp layer, ip protocol layer, L2 protocol layers and L1
Protocol layer.
Preferably, the track traffic broadband cluster system further includes：Dispatch server；
The fixed station is connected by cable with the dispatch server；
The fixed station is additionally operable to communicate with the dispatch server, completes data service interaction.
Preferably, the fixed station includes：Calling module, video service module, data service module, information management mould
Block, address list module, function setting module, system management module and broadcast module；
The calling module includes：It is a to exhale submodule, group to exhale submodule and urgent call submodule；
The video service module includes：Video push submodule, video pull-up submodule, video feedback submodule and language
Sound group exhales overlay video submodule；
The data service module includes：Short message sending receiving submodule and message search submodule；
Described information management module includes：Personal user information tracking submodule, file management submodule, Interface status are shown
Show submodule and message registration submodule；
The address list module includes：Single user address list management submodule and group management address list management submodule；
The function setting module includes：Fixed station is subscribed to submodule, audio output route submodule and call forwarding and is set
Put submodule；
The system management module includes：User management submodule, rights management submodule and log management submodule；
The broadcast module includes：Broadcast submodule.
A kind of communication means of track traffic broadband cluster system, based on track traffic broadband cluster system, the track
Traffic broadband cluster system includes：Fixed station, core net and other terminals；The fixed station by cable and D interface with it is described
Core net connects, and the core net is connected with other terminals；The fixed station passes through the core net and other ends
End communicates, and completes colony dispatching service, the described method includes：
The fixed station is communicated by the core net with other terminals, completes colony dispatching service.
Preferably, the chain of command agreement stack of the D interface includes：Session Initiation Protocol layer, udp layer, ip protocol layer, L2 associations
Discuss layer and L1 protocol layers；
The user face protocol stack of the D interface includes：Real-time Transport Protocol layer, udp layer, ip protocol layer, L2 protocol layers and L1
Protocol layer.
Preferably, the method further includes：
The fixed station communicates with the dispatch server, completes data service interaction.
Preferably, the fixed station includes：Calling module, video service module, data service module, information management mould
Block, address list module, function setting module, system management module and broadcast module；
The calling module includes：It is a to exhale submodule, group to exhale submodule and urgent call submodule；
The video service module includes：Video push submodule, video pull-up submodule, video feedback submodule and language
Sound group exhales overlay video submodule；
The data service module includes：Short message sending receiving submodule and message search submodule；
Described information management module includes：Personal user information tracking submodule, file management submodule, Interface status are shown
Show submodule and message registration submodule；
The address list module includes：Single user address list management submodule and group management address list management submodule；
The function setting module includes：Fixed station is subscribed to submodule, audio output route submodule and call forwarding and is set
Put submodule；
The system management module includes：User management submodule, rights management submodule and log management submodule；
The broadcast module includes：Broadcast submodule.
Compared with prior art, the application has the beneficial effect that：
In this application, fixed station is connected by cable and D interface with core net in track traffic broadband cluster system, core
Heart net is connected with other terminals；Fixed station is communicated by core net with other terminals, completes colony dispatching service.
In the application, fixed station carries out wired connection by cable and D interface with core net, can effectively lift transmission speed
Rate, and fixed station by the transmission mode of cable and D interface and core net wired connection by radio transmission characteristics, transmission ring
Border, the influence of electromagnetic interference are small, can be effectively improved the stability of transmission.
Brief description of the drawings
In order to illustrate more clearly of the technical solution in the embodiment of the present application, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present application, for
For those of ordinary skill in the art, without having to pay creative labor, it can also be obtained according to these attached drawings
His attached drawing.
Fig. 1 is a kind of logical construction schematic diagram for the track traffic broadband cluster system that the application provides；
Fig. 2 (a) is the schematic diagram of the chain of command agreement stack of D interface, and Fig. 2 (b) is the signal of the user face protocol stack of D interface
Figure；
Fig. 3 is another logical construction schematic diagram for the track traffic broadband cluster system that the application provides；
Fig. 4 is the high-level schematic functional block diagram for the fixed station that the application provides；
Fig. 5 is the work structure diagram for the fixed station that the application provides；
Fig. 6 is a kind of flow chart of the communication means for the track traffic broadband cluster system that the application provides；
Fig. 7 is another flow chart of the communication means for the track traffic broadband cluster system that the application provides.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, the technical solution in the embodiment of the present application is carried out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, those of ordinary skill in the art are obtained every other without making creative work
Embodiment, shall fall in the protection scope of this application.
The embodiment of the present application discloses a kind of track traffic broadband cluster system, including：Fixed station, core net and other ends
End；The fixed station is connected by cable with core net described in D interface, and the core net is connected with other terminals；It is described
Fixed station is communicated by the core net with other terminals, completes colony dispatching service.Wherein, fixed station passes through net
Line and D interface carry out wired connection with core net, can effective promoting transmission rate, and fixed station passes through cable and D interface
Influenced by radio transmission characteristics, transmission environment, electromagnetic interference small, can effectively be changed with the transmission mode of core net wired connection
The stability of kind transmission.
Next the track traffic broadband cluster system to the application is introduced, shown in Figure 1, track traffic broadband
Group system includes：Fixed station 11, core net 12 and other terminals 13.
The fixed station 11 is connected by cable and D interface with the core net 12, the core net 12 with it is described other
Terminal 13 connects.
In the present embodiment, D interface is B-TrunC (broadband cluster communication, Broadband Trunking
Communication) system defines, the interface between core net 12 and fixed station 11.
In the present embodiment, fixed station 11 can have PC hosts and audio ＆ video equipment to form.
In the present embodiment, other terminals 13 can include but is not limited to dispatching desk, Vehicle mounted station, hand-held station.
It should be noted that core net 12 can be connected by D interface or base station with other terminals 13.When core net 12 is logical
When crossing D interface and being connected with other terminals 13, can further promoting transmission rate, further improve the stability of transmission.
The fixed station 11 is communicated by the core net 12 with other terminals 13, completes colony dispatching industry
Business.
The fixed station 11 after being connected by cable and D interface with core net 12, can by the core net 12 with
Other terminals communicate, and complete colony dispatching service.
It can be wrapped it should be noted that the fixed station 11 carries out communication by the core net 12 with other terminals
Include：The fixed station 11 carries out two way voice communication, video communication or data by the core net 12 and other terminals
Communication.
In this application, fixed station 11 is connected by cable and D interface with core net 12 in track traffic broadband cluster system
Connect, core net 12 is connected with other terminals 13；Fixed station 11 is communicated by core net 12 with other terminals 13, completes cluster
Scheduling business.
In the application, fixed station 11 carries out wired connection by cable and D interface with core net 12, can effectively lift biography
Defeated speed, and fixed station 11 by the transmission mode of cable and D interface and 12 wired connection of core net by radio transmission characteristics,
The influence of transmission environment and electromagnetic interference is small, can be effectively improved the stability of transmission.
Further, for fixed station 11 by being wiredly connected to core net 12, electromagnetic radiation is low, can reduce to health
Influence.And 11 hardware cost of fixed station has declined than traditional approach.
In another embodiment of the application, the protocol stack of D interface is introduced, refers to Fig. 2 (a) and (b), is schemed
2 (a) is illustrated that the chain of command agreement stack of D interface, and Fig. 2 (b) is illustrated that the user face protocol stack of D interface, specific as follows：
The chain of command agreement stack of the D interface can include from top to bottom：Session Initiation Protocol layer, udp layer, ip protocol layer,
L2 protocol layers and L1 protocol layers.
The chain of command agreement stack of D interface is used to transmit the control signaling between fixed station 11 and core net 12.Control signaling
It can specifically include：Trunked call control signaling, scheduling control signaling and fixed station 11 log in managing signaling.
SIP (Session initiation Protocol) is a text based application layer control protocol, for creating, changing and discharging one
The session of a or multiple participants.It is widely used in the network of circuit switching, next generation network and IP multimedia subsystem,
It can support and applied to multimedia services such as voice, video, data.Session Initiation Protocol is mainly used for realizing following in the present invention
Function：Trunked call controls；Group service is dispatched, including dynamic reorganization, distant dizzy distant resurrection of getting killed, forced interposing and forced releasing etc.；Dispatching desk is stepped on
Record management.
The user face protocol stack of the D interface can include：Real-time Transport Protocol layer, udp layer, ip protocol layer, L2 protocol layers
With L1 protocol layers.
The user face protocol stack of D interface can be used for transmitting the business datums such as voice, image, video.Specifically, D interface
User name protocol stack in Real-time Transport Protocol be used for transmission the business datums such as voice, image, video.
RTP (real-time transport protocol) is a transport layer Sublayer Protocol, is mainly used for transmitting in unicast or multicast network
Real time data, such as audio/video conference.In the present invention Real-time Transport Protocol be used for transmission the individual calling of cluster network, group vocative expression sound, video,
The data services such as image, and establish on UDP.
Group service data flow (passes through RTP, UDP transport layer, IP network layer, L2 data link layers and L1 things from top to bottom
Manage layer) and transmission from bottom to top, realize group service function.
Udp protocol is transport layer protocol, has the characteristics that towards disconnected, to improve group service data in the present invention
Efficiency of transmission.UDP layer receives SIP layer data streams, and it is downwardly towards IP network layer, L2 data link layers and L1 physics
Layer.
Clustered control data flow is transmitted from top to bottom, from bottom to top by protocol stack, realizes the function of colony dispatching.
It should be noted that the core net 12 to communicate with fixed station 11 needs to use and the corresponding protocol stack of D interface.Its
In, core net 12 uses the agreement for the network element T-CN uses that 12 side of core net in Fig. 2 is referred to the corresponding protocol stack of D interface
Stack.
It is understood that the DC in Fig. 2 (a) and (b) represents fixed station 11, D represents D interface, and T-CN represents core net
The network element of 12 sides.
In another embodiment of the application, show another track traffic broadband cluster system, refer to figure
3, further included on the basis of the track traffic broadband cluster system shown in Fig. 1：Dispatch server 14.
The fixed station 11 is connected by cable with dispatch server (DCS) 14；
The fixed station 11 is additionally operable to communicate with the dispatch server 14, completes data service interaction.
Socket (ICP/IP protocol), which can be based on, in the present embodiment, between fixed and dispatch server 14 carries out data biography
It is defeated.
In the present embodiment, fixed station 11 communicates with dispatch server 14, and the data service of completion can be included but not
Business identity log-on data, running information data (e.g., vehicle traveling information and information of vehicles), part video display frequency is confined to store
Data, track traffic business datum, short message record, message registration and call fileinfo.
In another embodiment of the application, fixed station 11 is introduced, it is specific as follows：
Fig. 4 is referred to, fixed station 11 can include：Calling module 111, video service module 112, data service module
113rd, information management module 114, address list module 115, function setting module 116, system management module 117 and broadcast module
118。
The calling module 111 can include：It is a to exhale submodule, group to exhale submodule and urgent call submodule.
The video service module 112 can include：Video push submodule, video pull-up submodule, video passback
Module and voice group call service overlay video submodule.
The data service module 113 can include：Short message sending submodule and message search submodule.
Described information management module 114 can include：Personal user information tracking submodule, file management submodule, connect
Mouth status display submodule and message registration submodule.
The address list module 115 can include：Single user address list management submodule and group management address list management
Module.
The function setting module 116 can include：Fixed station 11 is subscribed to submodule, audio output route submodule and is exhaled
Make transfer that submodule is set.
The system management module 117 can include：User management submodule, rights management submodule and log management
Module.
The broadcast module 118 can include：Broadcast submodule.
The work structure diagram of fixed station 11 may refer to Fig. 5, as shown in figure 5, fixed station 11 by bearer network (e.g.,
LTE core network) communicate with dispatching desk, Vehicle mounted station and hand-held station, and can pass through interface and dispatch server 14, webmaster and
Sound pick-up outfit etc. communicates.
Fixed station 11 in the application it is feature-rich, more adapt to user demand compared to traditional fixed station 11.
It should be noted that core net 12 is also correspondingly arranged the function module just like fixed station in Fig. 4 11, it is each to ensure
Function can be realized normally.
The communication means of track traffic broadband cluster system provided by the embodiments of the present application is described below, is hereafter retouched
The communication means for the track traffic broadband cluster system stated can be corresponded with above-described track traffic broadband cluster system
Reference.
Fig. 6 is referred to, a kind of stream of the communication means of the track traffic broadband cluster system provided it illustrates the application
Cheng Tu, the communication means for the track traffic broadband cluster system that the application provides are based on above-described track traffic broadband cluster
System, the communication means of track traffic broadband cluster system may comprise steps of：
Step S11, described fixed station is communicated by the core net with other terminals, completes colony dispatching industry
Business.
In the present embodiment, the chain of command agreement stack of the D interface can include：Session Initiation Protocol layer, udp layer, IP associations
Discuss layer, L2 protocol layers and L1 protocol layers.
The user face protocol stack of the D interface can include：Real-time Transport Protocol layer, udp layer, ip protocol layer, L2 protocol layers
With L1 protocol layers.
In the present embodiment, expanded on the basis of the communication means of the track traffic broadband cluster system shown in Fig. 6
The communication means of another track traffic broadband cluster system, refers to Fig. 7, may comprise steps of：
Step S21, described fixed station is communicated by the core net with other terminals, completes colony dispatching industry
Business.
Step S21 is identical with the step S11 in the communication means of the track traffic broadband cluster system shown in Fig. 6, herein
Repeat no more.
Step S22, described fixed station communicates with the dispatch server, completes data service interaction.
In the present embodiment, the fixed station can include：Calling module, video service module, data service module, letter
Cease management module, address list module, function setting module, system management module and broadcast module.
The calling module can include：It is a to exhale submodule, group to exhale submodule and urgent call submodule.
The video service module can include：Video push submodule, video pull-up submodule, video feedback submodule
With voice group call service overlay video submodule.
The data service module can include：Short message sending submodule and message search submodule.
Described information management module can include：Personal user information tracking submodule, file management submodule, interface shape
State display sub-module and message registration submodule.
The address list module can include：Single user address list management submodule and group management address list management submodule
Block.
The function setting module can include：Fixed station is subscribed to submodule, audio output route submodule and calling and is turned
Move and submodule is set.
The system management module can include：User management submodule, rights management submodule and log management submodule
Block.
The broadcast module can include：Broadcast submodule.
It should be noted that each embodiment in this specification is described by the way of progressive, each embodiment weight
Point explanation is all difference with other embodiment, between each embodiment identical similar part mutually referring to.
For device class embodiment, since it is substantially similar to embodiment of the method, so description is fairly simple, related part ginseng
See the part explanation of embodiment of the method.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or order.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only include that
A little key elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", is not arranged
Except also there are other identical element in the process, method, article or apparatus that includes the element.
For convenience of description, it is divided into various units during description apparatus above with function to describe respectively.Certainly, this is being implemented
The function of each unit can be realized in same or multiple softwares and/or hardware during application.
As seen through the above description of the embodiments, those skilled in the art can be understood that the application can
Realized by the mode of software plus required general hardware platform.Based on such understanding, the technical solution essence of the application
On the part that contributes in other words to the prior art can be embodied in the form of software product, the computer software product
It can be stored in storage medium, such as ROM/RAM, magnetic disc, CD, including some instructions are used so that a computer equipment
(can be personal computer, server, either network equipment etc.) performs some of each embodiment of the application or embodiment
Method described in part.
A kind of track traffic broadband cluster system and communication means provided herein are described in detail above,
Specific case used herein is set forth the principle and embodiment of the application, and the explanation of above example is simply used
Understand the present processes and its core concept in help；Meanwhile for those of ordinary skill in the art, according to the application's
Thought, there will be changes in specific embodiments and applications, in conclusion this specification content should not be construed as
Limitation to the application.
Claims (8)
- A kind of 1. track traffic broadband cluster system, it is characterised in that including：Fixed station, core net and other terminals；The fixed station is connected by cable and D interface with the core net, and the core net is connected with other terminals；The fixed station is communicated by the core net with other terminals, completes colony dispatching service.
- 2. system according to claim 1, it is characterised in that the chain of command agreement stack of the D interface includes：Session Initiation Protocol Layer, udp layer, ip protocol layer, L2 protocol layers and L1 protocol layers；The user face protocol stack of the D interface includes：Real-time Transport Protocol layer, udp layer, ip protocol layer, L2 protocol layers and L1 agreements Layer.
- 3. system according to claim 1, it is characterised in that the track traffic broadband cluster system further includes：Scheduling Server；The fixed station is connected by cable with the dispatch server；The fixed station is additionally operable to communicate with the dispatch server, completes data service interaction.
- 4. system according to claim 1, it is characterised in that the fixed station includes：Calling module, video traffic mould Block, data service module, information management module, address list module, function setting module, system management module and broadcast module；The calling module includes：It is a to exhale submodule, group to exhale submodule and urgent call submodule；The video service module includes：Video push submodule, video pull-up submodule, video feedback submodule and voice group Exhale overlay video submodule；The data service module includes：Short message sending receiving submodule and message search submodule；Described information management module includes：Personal user information tracking submodule, file management submodule, Interface status display Module and message registration submodule；The address list module includes：Single user address list management submodule and group management address list management submodule；The function setting module includes：Fixed station subscribes to submodule, audio output route submodule and call forwarding and sets son Module；The system management module includes：User management submodule, rights management submodule and log management submodule；The broadcast module includes：Broadcast submodule.
- A kind of 5. communication means of track traffic broadband cluster system, it is characterised in that based on track traffic broadband cluster system, The track traffic broadband cluster system includes：Fixed station, core net and other terminals；The fixed station is connect by cable and D Mouth is connected with the core net, and the core net is connected with other terminals；The fixed station passes through the core net and institute State other terminals to communicate, complete colony dispatching service, the described method includes：The fixed station is communicated by the core net with other terminals, completes colony dispatching service.
- 6. according to the method described in claim 1, it is characterized in that, the chain of command agreement stack of the D interface includes：Session Initiation Protocol Layer, udp layer, ip protocol layer, L2 protocol layers and L1 protocol layers；The user face protocol stack of the D interface includes：Real-time Transport Protocol layer, udp layer, ip protocol layer, L2 protocol layers and L1 agreements Layer.
- 7. according to the method described in claim 5, it is characterized in that, the method further includes：The fixed station communicates with the dispatch server, completes data service interaction.
- 8. according to the method described in claim 5, it is characterized in that, the fixed station includes：Calling module, video traffic mould Block, data service module, information management module, address list module, function setting module, system management module and broadcast module；The calling module includes：It is a to exhale submodule, group to exhale submodule and urgent call submodule；The video service module includes：Video push submodule, video pull-up submodule, video feedback submodule and voice group Exhale overlay video submodule；The data service module includes：Short message sending receiving submodule and message search submodule；Described information management module includes：Personal user information tracking submodule, file management submodule, Interface status display Module and message registration submodule；The address list module includes：Single user address list management submodule and group management address list management submodule；The function setting module includes：Fixed station subscribes to submodule, audio output route submodule and call forwarding and sets son Module；The system management module includes：User management submodule, rights management submodule and log management submodule；The broadcast module includes：Broadcast submodule.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109068293A (en) * | 2018-07-05 | 2018-12-21 | 中国铁道科学研究院集团有限公司电子计算技术研究所 | Data automated communications method between a kind of wlan network EMU car ground |
| CN115174531A (en) * | 2022-09-06 | 2022-10-11 | 天津七一二移动通信有限公司 | Method for realizing video call and remote maintenance of broadband fixed station based on LTE |
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