CN108924769A - Simple signaling cluster communication method - Google Patents
Simple signaling cluster communication method Download PDFInfo
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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
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
- H04W4/10—Push-to-Talk [PTT] or Push-On-Call services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
- H04Q5/24—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange for two-party-line systems
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Abstract
A kind of simple signaling cluster communication method, includes the following steps:1. control command code is become while including the simple signaling of channel coding by base station;2. the corresponding coding of simple signaling described in base station sets;3. modulating the coding on transmitting carrier wave;4. terminal receives and demodulates to obtain the coding;5. terminal obtains control instruction according to the control instruction being preset in itself table corresponding with simple signalling coding;6. terminal completes cluster communication operation according to the control instruction.Step is 6. middle to be completed in cluster communication operation:Any terminal is initiated after calling and base station collaboration shifts control channel, and former control channel is used as Traffic Channel and is communicated, and is switched to original control channel after the completion.Clustering functionality is realized by respectively increasing a software module in the base station of inexpensive Conventional communication systems and terminal, changed according to business, switching at runtime channel attribute, realizes frequency point multiplexing, reduce channel congestion, to improve the utilization rate of radio channel resource and equipment.
Description
Present patent application is the divisional application that number of patent application is CN201410121615.X;Number of patent application is
The patent application day of CN201410121615.X is on 03 28th, 2014, and name of patent application is the " collection based on conventional terminal
Group Communications method and system ".
Technical field
The present invention relates to the wireless intercom systems in telecommunication field, more particularly to the cluster communication method based on conventional terminal
And system.
Background technique
Name is explained:
CDCSS (Continuous Digital Controlled Squelch System), continuous number control noise elimination system
System is also digital subsonics;
MSK (Minimum Shift Keying), minimum shift keying are that a kind of apply is adjusted in the number of mobile communication field
Mode processed;
CCI (Control Channel Identifier), control channel mark;
BCI (Busy Channel Identifier), busy channel logo;
GTC (Go To Channel), channel conversion;
PTT (Push To Talk), press-and-talk also refer to the PTT key on intercom.
Traditional CTCSS (Continuous Tone Controlled Squelch System) signaling, refers to infrasonic
Control noise elimination selective call signaling, also known as sound lock or tone squelch.It is that multiple communication systems share a channel, are to prevent mutually
A kind of infrasonic signaling interfered and used.It can be effectively prevented illegal user and enters system.CTCSS signaling is carried in transmitting
Low level infrasonic single-tone is superimposed on wave, each system has oneself specific single-tone, and user's per call is sent out when opening transmitter
The single-tone of the frequency out, and persistently sent during entire call.In simple trunked communication system, signaling realization is commonly used
Group exhales or as system identification sound.
Subsonics includes transmitting subsonics and reception subsonics.General terminal in order to entering cluster net, be all using transmitting subsonics,
It just can enter cluster net in this way.And the relaying of cluster or base station be using " receive subsonics ", the signal of subsonics is not just by base
Station eliminates.The relaying or base station downlink signal some of cluster also have without subsonics with subsonics.Terminal receive when in order to
The signal for oneself not needing to listen can be excluded, it can also be equally plus reception subsonics.It also tends between two or several radio station using about
Fixed subsonics excludes external interference signal.
The prior art can realize that the wireless communication system of clustering functionality is able to achieve flexibly grouping and channel multiplexing, but technology is multiple
It is miscellaneous and expensive.Prior art conventional wireless communication system frequency point is fixed, and is grouped when multifrequency point by frequency point, cannot achieve flexibly
Grouping and channel multiplexing;If realizing clustering functionality using conventional system, the more set classical relay platforms of erection are generally required, it is more to realize
A frequency point forwarding, this method higher cost.
Summary of the invention
The technical problem to be solved in the present invention is that being provided a kind of simple in place of avoiding above-mentioned the deficiencies in the prior art
Cluster communication method and system based on traditional talkback system.The comprehensive conventional system of described method and system is at low cost and cluster
The high respective advantage of resource utilization ratio, base station and terminal using Conventional communication systems increase by one by each wherein
Software module realizes that channel distribution, group such as exhale and generally call at the clustering functionalities, improves the utilization rate of radio channel resource and equipment.
Flexibly, type of service is abundant, and cost of implementation is low for grouping.
The present invention solve the technical problem the technical solution adopted is that:A kind of simple signaling cluster communication method, including
Following steps:
1. control command code is become while including the simple signaling of channel coding by base station;
2. the corresponding coding of simple signaling described in base station sets;
3. modulating the coding on transmitting carrier wave;
4. terminal receives and demodulates to obtain the coding;
5. terminal obtains control instruction according to the control instruction being preset in itself table corresponding with simple signalling coding;
6. terminal completes cluster communication operation according to the control instruction.
1. the control instruction includes above-mentioned steps:Control channel identifies CCI;Busy channel logo BCI;Channel transfer refers to
Enable GTC.
Above-mentioned steps 3. in, signalling coding is emitted after being modulated using CDCSS or MSK mode, naturally it is also possible to use other
Digital modulation technique modulation after emit.
Step is 6. middle to complete cluster communication operation, includes the following steps:
6.1 idle states, all terminals are waited at control channel A;
Any terminal of 6.2 any group K is initiated to call in control channel A, and compiles to the grouping that the group K is transmitted in base station
Code;
6.3 base stations receive the wireless signal that the terminal issues and decoding obtains block encoding;
An idle channel is found in 6.4 base stations, sets it to new control channel B;
6.5 base stations send channel transfer in former control channel A and instruct GTC, indicate other terminals transfer in addition to the group K
To control channel B;
Control channel A is switched to Traffic Channel C by 6.6 base station controllers;
The 6.7 group K are called in the Traffic Channel C;
After the 6.8 Traffic Channel C end of callings, base station starts fixed time broadcast channel transfer instruction GTC in Traffic Channel C,
All terminals are allowed to be transferred to control channel B.Base station intermittently sends prompt control channel frequency point in all idle channels
Channel transfer instructs GTC.Channel transfer described in the block encoding and step 6.5 of group described in step 6.2 instructs GTC, for week
The wireless signaling that phase sends.Namely in step, 6. middle completion cluster communication operation includes the following steps:It is all in idle state
Terminal is waited at control channel A;Any terminal in any group K is initiated to call in control channel A, and transmits institute to base station
State the block encoding of group K;Base station receives and decodes to obtain block encoding, while finding an idle channel and setting the free time
Channel is new control channel B;Base station sends channel transfer instruction in former control channel A, indicates that the terminal of the non-group turns
Move on to control channel B;Control channel A is switched to Traffic Channel C by base station controller;The group K is in the Traffic Channel C
Calling;After the Traffic Channel C end of calling, base station starts the instruction of fixed time broadcast channel transfer in Traffic Channel C, allows all
Terminal is transferred to control channel B.After in step, 6. middle any terminal is initiated to call and base station collaboration shifts control channel, and will be former
Control channel is used as Traffic Channel and is communicated, and is switched to original control channel after the completion.
The method is by increasing a software module respectively in the base station of inexpensive Conventional communication systems and terminal come real
Existing clustering functionality, according to the variation of business, switching at runtime channel attribute realizes the multiplexing of frequency point, reduces gathering around for channel
It is stifled.To improve the utilization rate of radio channel resource and equipment.
The present invention solves the technical solution that the technical problem uses:A kind of simple signaling cluster communication base station,
Including base station controller, at least a set of channel device, combiner device, duplexer and antenna-feeder system;The base station controller includes letter
Single signalling coding unit, the coding unit include base station control instruction table corresponding with simple signalling coding;The simple signaling is compiled
Code unit further includes simple signalling coding table corresponding with CDCSS or msk signal.
The present invention solves the technical solution that the technical problem uses:A kind of simple signaling cluster communication terminal,
It is described including radio circuit, base band, display keyboard and micro-controller system each unit and voice input MC and output LS Unit two
Micro-controller system unit includes simple signalling coding unit again, which then includes control instruction and simple signaling
Encode corresponding table;The simple signalling coding unit further includes simple signalling coding table corresponding with CDCSS or msk signal;Terminal
The CDCSS or msk signal sent from base station is received, obtains simple signalling coding, and refer to according to the control being preset in terminal
It enables table corresponding with simple signalling coding obtain control instruction, further according to the control instruction, completes cluster communication operation.
The present invention solves the technical solution that the technical problem uses:A kind of simple signaling cluster communication system
System, including base station and terminal;The base station includes base station controller, at least a set of channel device, combiner device, duplexer and antenna feeder
System;The base station controller includes simple signalling coding unit again, which then includes that base station control refers to
Table corresponding with simple signalling coding is enabled, the simple signalling coding unit further includes simple signalling coding and CDCSS or msk signal
Corresponding table;The terminal includes radio circuit, base band, display keyboard and micro-controller system each unit and voice input MC and defeated
LS Unit two out, micro-controller system unit include simple signalling coding unit, which includes control instruction again
Table corresponding with simple signalling coding, the simple signalling coding unit further includes simple signalling coding and CDCSS or msk signal pair
Answer table;Terminal receives the CDCSS or msk signal that send from base station, obtains simple signalling coding, according to being preset in terminal
Control instruction table corresponding with simple signalling coding obtains control instruction, and terminal completes cluster communication further according to the control instruction
Operation.
Compared with the existing technology compared with, the beneficial effects of the present invention are, be conventional interphone communication system base station and
Respectively increase a software module in terminal meet channel distribution, the general cluster service requirement such as group is exhaled and is generally called;The software
Module makes traditional intercom system realize cluster communication function by the control command code of simple signaling transmission cluster communication
Can, and can be realized the differentiation of control channel and Traffic Channel;On the one hand the utilization efficiency of physical channel is improved, improves nothing
Line channel resource and utilization rate of equipment and installations, another aspect are grouped communication means of the present invention and the cluster of system flexibly, and type of service is rich
Richness has both the low advantage high with the resource utilization of trunked communication system of cost of Conventional communication systems.
【Detailed description of the invention】
Fig. 1 is the method and step schematic diagram of the preferred embodiment of the present invention;
Fig. 2 is one of channel dispatch status diagram of the embodiment of the present invention;
Fig. 3 is the two of channel dispatch status diagram of the embodiment of the present invention;
Fig. 4 is the three of channel dispatch status diagram of the embodiment of the present invention;
Fig. 5 is the base station composition schematic diagram of the embodiment of the present invention;
Fig. 6 is the terminal composition schematic diagram of the embodiment of the present invention;
Fig. 7 is the number subsonics coding schedule of the prior art, wherein coding uses hexadecimal;
Fig. 8 is the control instruction table corresponding with simple signaling hexadecimal code of the embodiment of the present invention;
Fig. 9 is the physical channel and end packet hexadecimal code table of the embodiment of the present invention.
【Specific embodiment】
Below in conjunction with each preferred embodiment, invention is further described in detail.Referring to Fig. 1, communication means of the present invention includes
Following steps:
All terminals are all waited under the control channel of base station under 201. idle states;
202. terminals are pressed PTT key initiation group under control channel and are exhaled, and control channel receiver receives wireless signal and decodes and obtains
Block encoding;
203. base station controllers find an idle Traffic Channel, and it is distributed as new control channel, and starts
Fixed time broadcast control channel identifies signaling;
204. base stations issue channels transfer instruction in former control channel, indicate that terminal uncorrelated to this call business is transferred to
Under new control channel;
Former control channel is switched to Traffic Channel by 205. base station controllers, and distributes to the use of active calls business;
206. start to forward active calls on current traffic channel;
207. terminals unclamp PTT key, the busy channel logo signaling of channel fixed time broadcast in certain guard time;If overtime
Amount(Call holding time)It is interior to press PTT key again without terminal, then it is assumed that this time end of calling comes into effect next step
208;Otherwise, previous step 206 is returned, continues to forward active calls;
208. end of callings, Traffic Channel start the instruction of fixed time broadcast channel transfer;
209., which allow all terminals to be transferred under control channel, waits for.
Fig. 2 to Fig. 4 is preferred embodiment of the present invention channel dispatch status diagram;Fig. 8 is that the control of the embodiment refers to
Table corresponding with simple signalling coding is enabled, Fig. 9 is then physical channel and end packet coding schedule;This is all using hexadecimal at two
Coding.
As shown in Fig. 2, sharing 12 terminals, it is divided into J, K, M3 groupings;All terminals are all monitored on control channel A;
Any terminal for being grouped K grouies busy that any terminal for being grouped K can receive the grouping with its subsonics block encoding 113H initiation K group
It encodes and decodes, while base station can also receive the block encoding, physical channel 1 is grouped K occupancy at this time;Base station is controlling
Channel A sends the control instruction that busy channel logo BCI is encoded to 113H;Grouping the affiliated terminal of K this time group busy communication with
The coding 113H of the busy channel logo signaling BCI can't be handled in its guard time;Any free time base station selected simultaneously
Physical channel 4 is as new control channel B, and in the communication and guard time of physical channel 1, base station is sent out by control channel A
Channels transfer instruction GTC;There are many channel transfer instructions and corresponding with channel coding:Need to be transferred to physical channel 4, just
Send 166H;It needs to be transferred to physical channel 5, just sends 175H;Grouping J, the terminal for being grouped M receive GTC instruction encoding and are
166H is transferred to the namely new control channel B of physical channel 4, as shown in Figure 3.
Base station sends the coding 113H of busy channel logo BCI in control channel A in grouping K calling and guard time;
Base station fixed time broadcast channel transfer on new control channel B and other idle channels instructs GTC, if being transferred to physical channel 4,
GTC instruction is encoded to 166H.
It is grouped terminal belonging to K, after the call has ended and beyond after guard time, and generates new exhale without terminal in organizing
When crying, the coding 166H for the GTC instruction that base station issues also is received, and decodes and obtains physical channel 4, is transferred to new control channel
B, as shown in Figure 4.
Fig. 5 is the base station composition schematic diagram of the preferred embodiment of the present invention, including base station controller, at least a set of channel device,
Combiner device, duplexer and antenna-feeder system;The base station controller includes simple signalling coding unit;The simple signalling coding list
Member includes base station control instruction table corresponding with simple signalling coding, can inquire to obtain control instruction by the table and simple signaling is compiled
The relationship of intersymbol;The simple signalling coding unit further includes simple signalling coding table corresponding with CDCSS or msk signal, by this
Table can be inquired to obtain the corresponding relationship of simple signalling coding and CDCSS or msk signal.In many specific designs, in Fig. 7 table
Encoding relation be set in codec chip, for example just include in " simulation subsonics number subsonics codec chip PH938 "
Digital subsonics code table.
Base station control command code unit determines what needs were sent according to control flow when sending base station signal
Control instruction obtains the corresponding simple letter of the control instruction by inquiry base station control instruction table corresponding with simple signalling coding
Enable coding;By the digital subsonics coding schedule of query graph 7, base station obtains the CDCSS or msk signal sent, naturally it is also possible to be
The signal of other digital modulation techniques;Base station sends signal, completes the scheduling operation of cluster communication.
Because the control instruction of the embodiment of the present invention is fairly simple, base station does not detect the state of each terminal;So base station exists
It sends channel transfer instruction GTC on idle channel periodically, booting that allow off-grid or new but is also not transferred to new control channel
Terminal is also transferred to current control channel.Some certain terminals, which may be because, to be not received by GTC instruction and rests on former control
Channel processed, i.e., the service channel that certain current block terminal is calling;The terminal of the channel is respectively rested on, because not being grouped end
The block encoding at end, therefore cannot hear the call in the channel;Enter idle shape after call business on this channel
State, the channel become an idle channel.On idle channel, base station can send GTC instruction the period, make in off-grid state
Terminal can be correctly transferred in new control channel.
The terminal of the embodiment of the present invention forms, and sees Fig. 6, including radio circuit, base band, display keyboard, micro-controller system, language
Sound inputs MC and output LS unit;Micro-controller system unit also again include simple signalling coding unit, including control instruction with
Simple signalling coding corresponds to table.It can be inquired to obtain the relationship between control instruction and simple signalling coding by the table.It is described simple
Signalling coding unit further includes simple signalling coding table corresponding with CDCSS or msk signal.Terminal reception is sent from base station
CDCSS or msk signal obtain simple signalling coding;It is corresponding with simple signalling coding according to the control instruction being preset in terminal
Table obtains control instruction;Terminal completes cluster communication operation according to the control instruction.
The present invention is based on traditional talkback systems, respectively increase by one in the base station of conventional interphone communication system and terminal
A software module come meet channel distribution, the general cluster service requirement such as group is exhaled and is generally called;The software of the realization clustering functionality
Module transmits the control command code of cluster communication by simple signaling, and traditional intercom system is made to realize the function of cluster communication
Can, and can be realized the differentiation of control channel and Traffic Channel, the utilization efficiency of physical channel is on the one hand improved, nothing is improved
Line channel resource and utilization rate of equipment and installations;Another aspect makes cluster grouping flexibly again, and type of service is abundant;Communication means of the invention and
System has both the low feature high with the resource utilization of trunked communication system of cost of Conventional communication systems, is particularly suitable for spending few
It measures money and improves existing equipment, can but greatly improve the occasion of its service performance.
Fig. 7 is a kind of digital subsonics coding schedule, inquires the available digital coding of table pass corresponding with CDCSS signal
System.In many specific designs, which has just been set in codec chip.
Fig. 8 is control instruction table corresponding with simple signalling coding, and it is as shown in the table, and a kind of instruction type may have multiple volumes
Code has multiple codings if channel transfer instructs GTC, and each coding respectively corresponds the different target channel to be transferred to.At this
In inventive embodiments, channel coding is identical as channel transfer instruction GTC, receives transfer instruction, and terminal knows that needs turn simultaneously
The destination channel moved on to.The corresponding table gives end packet coding, which also corresponds to set of number subsonics, uses
Identification grouping and terminal receive speech recognition when terminal originated calls;When terminal presses the transmitting of PTT key, base station forwarding
Speech concurrent gives the block encoding, and mark current communication channel is on call, and occupies for which grouping, non-grouping
Terminal, can rapidly detect the state of oneself, and be rapidly separated the channel, into current control channel;During calling
Base station is to retain the channel and issue busy channel logo BCI, indicates that terminal be newly switched in this grouping or off-grid enters and is somebody's turn to do
Traffic Channel, and prompt non-grouping be newly switched on or the terminal of off-grid be switched to current control channel.
Signalling coding in the present invention can be encoded using CDCSS, can also be encoded with MSK, may be used yet certainly
To be the coding of other digital modulation techniques.
The present invention can also be in conjunction with base station controller, and mobile switch system forms big trans-regional trunked call system
System.Embodiment described above only expresses the preferred embodiment of the present invention, and the description thereof is more specific and detailed, but can not
Therefore limitations on the scope of the patent of the present invention are interpreted as;It should be pointed out that for those of ordinary skill in the art,
Without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection model of the invention
It encloses;Therefore, all equivalents and modification done with scope of the invention as claimed, should belong to the culvert of the claims in the present invention
Lid range.
Claims (9)
1. a kind of simple signaling cluster communication method, includes the following steps:1. control command code is become while being wrapped by base station
Simple signaling containing channel coding;2. the corresponding coding of simple signaling described in base station sets;3. modulating institute on transmitting carrier wave
State coding;4. terminal receives and demodulates to obtain the coding;5. terminal is according to the control instruction being preset in itself and simply
Signalling coding corresponds to table, obtains control instruction;6. terminal completes cluster communication operation according to the control instruction.
2. according to the method described in claim 1, it is characterized in that:The step of weighing 1 1. in, the control instruction type includes:
Control channel identifies CCI;Busy channel logo BCI;Channel transfer instructs GTC.
3. according to the method described in claim 1, it is characterized in that:The step of weighing 1 3. in, the coding using CDCSS or
After MSK mode is modulated, emitted.
4. according to the method described in claim 1, it is characterized in that:
The step of weighing 1 is 6. middle to complete cluster communication operation, includes the following steps:6.1 idle states, all terminals, which are waited for, to be controlled
Under channel A processed;Any terminal of 6.2 any group K is initiated to call in control channel A, and transmits the group K's to base station
Block encoding;6.3 base stations receive the wireless signal that the terminal issues and decoding obtains block encoding;Find one in 6.4 base stations
Idle channel sets it to new control channel B;6.5 base stations send channel transfer in former control channel A and instruct GTC, instruction
Other terminals in addition to the group K are transferred to control channel B;Control channel A is switched to business letter by 6.6 base station controllers
Road C;The 6.7 group K are called in the Traffic Channel C;After the 6.8 Traffic Channel C end of callings, base station is in the business
Channel C starts fixed time broadcast channel transfer instruction GTC, and all terminals is allowed to be transferred to control channel B.
5. according to the method described in claim 4, it is characterized in that:Base station intermittently sends prompt in all idle channels
The channel transfer of control channel frequency point instructs GTC.
6. according to the method described in claim 4, it is characterized in that:The block encoding and step of group described in step 6.2
6.5 channel transfers instruct GTC, the wireless signaling sent for the period.
7. a kind of simple signaling cluster communication base station, including base station controller, at least a set of channel device, combiner device, duplexer
And antenna-feeder system;The base station controller includes simple signalling coding unit, which includes base station control instruction and letter
Single signalling coding corresponds to table;The simple signalling coding unit further includes that simple signalling coding is corresponding with CDCSS or msk signal
Table.
8. a kind of simple signaling cluster communication terminal, including radio circuit, base band, display screen, keyboard and micro-controller system each unit,
And voice inputs MC and output LS Unit two, the micro-controller system unit includes simple signalling coding unit, the simple letter again
Enabling coding unit then includes control instruction table corresponding with simple signalling coding;The simple signalling coding unit further includes simply believing
It enables and encodes table corresponding with CDCSS or msk signal;Terminal receives the CDCSS or msk signal sent from base station, obtains simple letter
Coding is enabled, and control instruction is obtained according to the control instruction being preset in terminal table corresponding with simple signalling coding, further according to this
Control instruction completes cluster communication operation.
9. a kind of simple signaling trunked communication system, including base station and terminal;The base station includes base station controller, at least a set of
Channel device, combiner device, duplexer and antenna-feeder system;The base station controller includes simple signalling coding unit again, this is simple
Signalling coding unit then includes base station control instruction table corresponding with simple signalling coding, and the simple signalling coding unit further includes
Simple signalling coding table corresponding with CDCSS or msk signal;The terminal includes radio circuit, base band, display screen, keyboard and micro-
Control system each unit and voice input MC and output LS Unit two, micro-controller system unit includes simple signalling coding unit, should
Simple signalling coding unit includes control instruction table corresponding with simple signalling coding again, and the simple signalling coding unit further includes
Simple signalling coding table corresponding with CDCSS or msk signal;Terminal receives the CDCSS or msk signal sent from base station, obtains letter
Single signalling coding obtains control instruction according to the control instruction being preset in terminal table corresponding with simple signalling coding, and terminal is again
According to the control instruction, cluster communication operation is completed.
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CN104955000B (en) | 2018-10-02 |
CN108924769B (en) | 2021-03-23 |
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