CN102711134B - Wireless telecommunication systems, method and website between website - Google Patents
Wireless telecommunication systems, method and website between website Download PDFInfo
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- CN102711134B CN102711134B CN201210165653.6A CN201210165653A CN102711134B CN 102711134 B CN102711134 B CN 102711134B CN 201210165653 A CN201210165653 A CN 201210165653A CN 102711134 B CN102711134 B CN 102711134B
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Abstract
The present invention relates to communication technical field, disclose wireless telecommunication systems, method and website between a kind of website, described system includes: multiple websites, at least one of which website includes: the Access Layer intermediate station connected by Internetwork link and link layer intermediate station, and other website at least includes: Access Layer intermediate station；Described Access Layer intermediate station carries out system access for terminal；It is wireless interconnected that described link layer intermediate station is used between website；Each intermediate station uses transmit-receive cofrequency but the working method of different time-gap carries out receiving and transmitting signal.Utilize the present invention, frequency resource can be saved, reduce equipment complexity.
Description
Technical field
The present invention relates to communication technical field, more particularly, it relates to wireless interconnected system between a kind of website
System, method and website.
Background technology
In wireless communications, the communication range of terminal is usually limited, so needing to increase transferring equipment
Increase the coverage of signal.In wireless intercom system, intermediate station, for increasing communication distance, expands
Exhibition coverage plays extremely important role, and being that specialty wireless telecommunication system is indispensable important sets
Standby.
Intermediate station is typically designed as a kind of power amplification device being effectively increased radio communication coverage area,
The most conventional DMR(Digital Mobile Radio, digital mobile radio) intermediate station employing TDMA
(Time Divide Multi Address, time division multiple acess) mode, takies two frequency bins, it is achieved receive and dispatch different
Frequently, double time slots work alone.
Owing to intermediate station to be received and dispatched the most simultaneously, in order to avoid doing between transmitting-receiving
Disturbing, intermediate station needs to assemble a duplexer in use, does not only take up more frequency resource, increases
Cost of device, and structure is complicated, and especially for minisystem, this problem can be brighter
Aobvious.
It addition, conventionally, as cannot directly be led to by radio frequency of eating dishes without rice or wine between intermediate station
Letter, therefore to interconnect between intermediate station, needs to change through signal, as changed by DMR signal
Become the third Protocol form, then access third party's public network (as IP network, E1 are wirelessly transferred net
Deng) transmission, not only have impact on its autgmentability, and transformation process is complicated.
Summary of the invention
The embodiment of the present invention is for the above-mentioned problems in the prior art, it is provided that between a kind of website wireless mutually
Contact system, method and website, to save frequency resource, reduce equipment complexity.
To this end, the embodiment of the present invention following technical scheme of offer:
Wireless telecommunication systems between a kind of website, including: multiple websites；
At least one of which website includes: the Access Layer intermediate station connected by Internetwork link and link
Layer intermediate station；
Other website at least includes: Access Layer intermediate station；
Described Access Layer intermediate station carries out system access for terminal；Described link layer intermediate station is used for website
Between wireless interconnected；Each intermediate station uses transmit-receive cofrequency but the working method of different time-gap carries out transmitting-receiving letter
Number.
A kind of wireless interconnected method between website, described website includes: the access connected by Internetwork link
Layer intermediate station and link layer intermediate station；Each intermediate station uses transmit-receive cofrequency but the working method of different time-gap is entered
Row receiving and transmitting signal；
Described method includes:
Terminal access is carried out by the Access Layer intermediate station in website；
By the link layer intermediate station in website carry out between website wireless interconnected；Chain in same website
Road floor intermediate station is connected by Internetwork link with Access Layer intermediate station.
A kind of website, including: the Access Layer intermediate station connected by Internetwork link and link layer transfer
Platform；Described Access Layer intermediate station carries out system access for terminal；Described link layer intermediate station is used for website
Between wireless interconnected；Each intermediate station uses transmit-receive cofrequency but the working method of different time-gap carries out transmitting-receiving letter
Number.
Wireless telecommunication systems, method and website between the website that the embodiment of the present invention provides, arranged in website
The link layer intermediate station being connected with Access Layer intermediate station by Internetwork link, utilizes link layer intermediate station real
Wireless interconnected between existing website, therefore need not increase extra hardware conversion equipment and expense, and
Networking flexibility, autgmentability is strong.
Owing to each intermediate station uses single-frequency, different time-gap to carry out receiving and transmitting signal, therefore can be effectively saved
Frequency and duplexer, reduce the probability of happening of frequency conflicts, improves the stability of system.
It addition, wirelessly interconnect between website, insensitive to Doppler effect, each website is in
Remain able in the case of mobile status reach preferable communication effect.
Accompanying drawing explanation
Fig. 1 is the networking schematic diagram of wireless telecommunication systems embodiment 1 between website of the present invention；
Fig. 2 is the networking schematic diagram of wireless telecommunication systems embodiment 2 between website of the present invention；
Fig. 3 is the networking schematic diagram of wireless telecommunication systems embodiment 3 between website of the present invention；
Fig. 4 is the timing synchronization schematic diagram of intermediate station in the embodiment of the present invention；
Fig. 5 is that in the embodiment of the present invention, the intermediate station in same website carries out synchronized transmissions or receives signal
Figure；
Fig. 6 is the flow chart of wireless interconnected method between embodiment of the present invention website；
Fig. 7 is a kind of structural representation of embodiment of the present invention website.
Detailed description of the invention
Existing conventional intermediate station is all designed to signal and amplifies and the equipment of transfer, and carries for terminal unit
For synchronizing datum signal, but do not possess the function being synchronized in another one reference signal, and DMR association
The communication of view just can be carried out after all must be based on synchronizing between equipment.Due to each intermediate station
Synchronizing datum signal is relatively independent, thus cannot realize the synchronization between intermediate station, in the most just cannot realizing
Directly interconnection between turntable, needs by means of third party's public network.
For the problems referred to above, wireless telecommunication systems and method between embodiment of the present invention website, by website
The link layer intermediate station that interior setting is connected with Access Layer intermediate station by Internetwork link, utilizes in link layer
It is wireless interconnected that turntable realizes between website.Wherein, Access Layer intermediate station is mainly used in terminal and carries out system
Access, on the one hand, the terminal transmission signal of up channel is carried out transfer and is forwarded by Internetwork link
To link layer intermediate station, link layer intermediate station carry out website interconnection；On the other hand, by link layer transfer
The signal that platform is transmitted by Internetwork link carries out transfer.Link layer intermediate station be mainly used in website it
Between wireless interconnected, on the one hand, up channel is entered from the transmitting signal of another one website link layer
Row transfer, and it is forwarded to Access Layer intermediate station by Internetwork link, by Access Layer calling terminal user；
On the other hand, the signal that Access Layer is transmitted by Internetwork link is carried out transfer.
In order to make those skilled in the art be more fully understood that the scheme of the embodiment of the present invention, below in conjunction with attached
The embodiment of the present invention is described in further detail by figure and embodiment.
Embodiment 1
As it is shown in figure 1, be a kind of basic networking signal of wireless telecommunication systems between embodiment of the present invention website
Figure.
In this embodiment, described system includes: website 1 and website 2, wherein, arranges in website 1
There is Access Layer intermediate station 11, website 2 be provided with Access Layer intermediate station 21 and link layer intermediate station 22,
Access Layer intermediate station 21 and link layer intermediate station 22 are connected by Internetwork link.
In a system of the invention, each intermediate station (including Access Layer intermediate station and link layer intermediate station) is all adopted
With transmit-receive cofrequency but the working method of different time-gap carries out receiving and transmitting signal.Therefore, it can be effectively saved frequency
Point and duplexer, reduce the probability of happening of frequency conflicts, improves the stability of system.
It should be noted that in the system of the embodiment of the present invention, in order to avoid the same frequency between adjacent sites is done
Disturbing, the Access Layer intermediate station of adjacent sites uses different frequencies；The link layer intermediate station of adjacent sites makes
By identical frequency；Access Layer intermediate station in same website uses different frequencies with link layer intermediate station
Rate.
Continue with and combine Fig. 1, describe terminal in detail and utilize the wireless telecommunication systems of the embodiment of the present invention in fact
The process of existing call proceeding.
As it is shown in figure 1, as terminal S1 calling terminal S2, terminal S1 initiates calling；Website 1
After Access Layer intermediate station 11 receives this calling, wirelessly this calling is transmitted to the chain of website 2
Road floor intermediate station 22；This call progress signal is changed by link layer intermediate station 22, such as analog digital conversion,
It is packaged into IP packet etc. to process, is then transferred to Access Layer intermediate station 21 by Internetwork link；Connect
Enter that the IP packet received is carried out decapsulating by layer intermediate station 21 again, digital-to-analogue conversion etc. issues after processing,
Terminal S2 receives this calling, thus realizes the calling to terminal S2 of terminal S1.
Correspondingly, as terminal S2 calling terminal S1, terminal S2 initiates calling；The access of website 2
After layer intermediate station 21 receives this calling, this call progress signal is changed, such as analog digital conversion, envelope
Dress up IP packet etc. to process, be then transferred to link layer intermediate station 22 by Internetwork link；Link
The IP packet received is carried out decapsulating by layer intermediate station 22 again, digital-to-analogue conversion etc. process after by wireless
Mode is sent to Access Layer intermediate station 11；This calling is issued by Access Layer intermediate station 11, and terminal S1 receives
This calling, thus realize the calling to terminal S1 of terminal S2.
In above-mentioned calling procedure, described link layer intermediate station 22 is wirelessly receiving signal
Time, forbid launching；When wirelessly launching signal, forbid receiving.
Wireless telecommunication systems between embodiment of the present invention website, arrange in website by Internetwork link with connect
Enter the link layer intermediate station that layer intermediate station is connected.Owing to utilizing link layer intermediate station to realize the nothing between website
Line interconnects, and therefore need not increase extra hardware conversion equipment and expense, and networking flexibility, extension
Property is strong.Owing to each intermediate station uses single-frequency, different time-gap to carry out receiving and transmitting signal, therefore can effectively save
Save frequency and duplexer, reduce the probability of happening of frequency conflicts, improve the stability of system.And, eventually
End need not activate Access Layer intermediate station, it is possible to achieve access system faster.
It should be noted that Fig. 1 is only illustrated as a example by two websites, in actual networking, can
There to be any number of website, at least one of which website includes: the access connected by Internetwork link
Layer intermediate station and link layer intermediate station, detailed description that this is illustrated separately below.
Embodiment 2
As in figure 2 it is shown, be the another kind of networking signal of wireless telecommunication systems between embodiment of the present invention website
Figure.
In this embodiment, described system includes three websites, respectively website 1, website 2 and website
3.Each website is provided with Access Layer intermediate station and link layer intermediate station, as in figure 2 it is shown, website 1 wraps
Include: Access Layer intermediate station 11 and link layer intermediate station 12.Website 2 includes: Access Layer intermediate station 21 He
Link layer intermediate station 22.Website 3 includes: Access Layer intermediate station 31 and link layer intermediate station 32.Each station
Access Layer intermediate station and link layer intermediate station in point are connected by Internetwork link.
It should be noted that between the website of the embodiment of the present invention in wireless telecommunication systems, in order to avoid adjacent
Co-channel interference between website, the Access Layer intermediate station of adjacent sites uses different frequencies；All websites
Link layer intermediate station uses identical frequency；Access Layer intermediate station in same website and link layer intermediate station
Use different frequencies.
As a example by networking mode shown in Fig. 2, when terminal S2 sends calling, Access Layer intermediate station 21 connects
Receive this calling, and by this calling wirelessly transfer, thus by with terminal S2 at same website
Interior terminal S3 receives；, also this call progress signal is changed, such as analog digital conversion, encapsulation meanwhile
Become IP packet etc. to process, be then transferred to link layer intermediate station 22 by Internetwork link, then by
This calling is wirelessly transferred to link layer intermediate station 12 He of website 1 by link layer intermediate station 22
The link layer intermediate station 32 of website 3.This calling is transmitted by link layer intermediate station 12 by Internetwork link
To Access Layer intermediate station 11, finally received by terminal S1 in website 1；Link layer intermediate station 32 will
This calling is transferred to Access Layer intermediate station 31 by Internetwork link, finally by terminal S4 in website 3
Receive.Visible, by the system of the embodiment of the present invention, conveniently and effectively achieve the network coverage
Extend.
It should be noted that under above-mentioned networking model, in order to prevent connecing link layer intermediate station 22
Receive and produce interference, can be configured to receiving chain by link layer intermediate station 12 and link layer intermediate station 32
After the transmitting signal of road floor intermediate station 22, forbid launching, be only transferred under this website by Internetwork link
Access Layer intermediate station.It is to say, in a website during only one of which link layer intermediate station, permissible
It is configured to the link layer intermediate station in other website adjacent with this website receiving sending out of described website
After penetrating signal, forbid launching, thus ensure the reception of link layer intermediate station in this website is produced interference.
Visible, wireless telecommunication systems between embodiment of the present invention website, arrange in website by interconnection network chain
The link layer intermediate station that road is connected with Access Layer intermediate station, utilizes link layer intermediate station to realize between website
Wireless interconnected, therefore need not increase extra hardware conversion equipment and expense, and networking flexibility, expand
Malleability is strong.Owing to each intermediate station uses single-frequency, different time-gap to carry out receiving and transmitting signal, therefore can be effectively
Save frequency and duplexer, reduce the probability of happening of frequency conflicts, improve the stability of system.And,
By suitable configuration, the interference between adjacent sites can be avoided.
In networking mode shown in above-mentioned Fig. 2, a link layer intermediate station is only set in website, website it
Between connection can be regarded as the mode of wireless cascade.It should be noted that wireless telecommunication systems of the present invention
It is not limited in above-mentioned networking mode, in other embodiments of the invention, can also set at a website
Put multiple link layer intermediate station, to realize more flexible networking and to improve signal transmission distance.
Embodiment 3
As it is shown on figure 3, be the another kind of networking signal of wireless telecommunication systems between embodiment of the present invention website
Figure.
In this embodiment, described system includes three websites, respectively website 1, website 2 and website
3.As it is shown on figure 3, unlike shown in above-mentioned Fig. 2, in this embodiment, website 1 includes: connect
Enter layer intermediate station 11 and two link layer intermediate stations, be respectively as follows: in link layer intermediate station 12 and link layer
Turntable 13.And, link layer intermediate station 12 uses identical frequency with the link layer intermediate station 22 of website 2
Rate, link layer intermediate station 13 uses identical frequency with the link layer intermediate station 32 of website 3.
As a example by networking mode shown in Fig. 3, the terminal described in detail in different website realizes wireless interconnected
Process.
As terminal S1 calling terminal S2, terminal S1 initiates calling；The Access Layer intermediate station of website 1
After 11 receive this calling, this call progress signal is changed, such as analog digital conversion, be packaged into IP number
Process according to bag etc., be then transferred to link layer intermediate station 12 by Internetwork link；Link layer intermediate station
12 carry out the IP packet received again decapsulating, digital-to-analogue conversion etc. processes laggard row and launches；Website 2
Link layer intermediate station 22 receive transmitting signal after, carried out by Internetwork link, Access Layer intermediate station
Transfer, final terminal S2 receives this calling, it is achieved the calling of terminal S1 to terminal S2.
As terminal S1 calling terminal S3, terminal S1 initiates calling；The Access Layer intermediate station of website 1
After 11 receive this calling, this call progress signal is changed, such as analog digital conversion, be packaged into IP number
Process according to bag etc., be then transferred to link layer intermediate station 13 by Internetwork link；Link layer intermediate station
13 carry out the IP packet received again decapsulating, digital-to-analogue conversion etc. processes laggard row and launches；Website 3
Link layer intermediate station 32 receive transmitting signal after, carried out by Internetwork link, Access Layer intermediate station
Transfer, final terminal S3 receives this calling, it is achieved the calling of terminal S1 to terminal S3.
Utilize above-mentioned networking mode, can be the site configuration multiple link layer transfer being in central area
Platform, each link layer intermediate station passes through one website of wireless connections, such that it is able to expand the covering model of network
Enclose.Under this networking mode, unlimited number of link layer intermediate station can be increased in theory, and, can
To arrange multiple link layer intermediate station in multiple websites, to connect multiple website, meet and arbitrarily cover model
The network demand enclosed.
It should be noted that in actual applications, can be by the networking mode shown in above-mentioned Fig. 2 and Fig. 3
As two kinds of basic system topologies, on the basis of existing network, increase new website, it is achieved many
Wireless interconnected between individual existing network.It is of course also possible to tie based on the system topological that above two is basic
Structure carries out flexible expansion, meets different networkings and covering demand.
It should be noted that mentions in the various embodiments described above forbids that transmitting and reception refer to forbid wireless parties
The transmitting of formula and reception.
It addition, be previously mentioned, in prior art, owing to the synchronizing datum signal of each intermediate station is relative
Independent, thus cannot realize the synchronization between intermediate station, the most just cannot realize between intermediate station is the most mutual
Connection.And in wireless telecommunication systems of the present invention, each intermediate station adds synchronization mechanism, signal receive
Side is synchronized to signal launch party, i.e. receives direction launch party and synchronizes, and launch party provides synchronous base to believe
Number thus realize the direct interconnection between intermediate station.
Synchronization between terminal with intermediate station: when terminal actively initiates a calling, Access Layer intermediate station
Needing to be synchronized on the synchronous base of terminal, when signaling to terminal under Access Layer intermediate station, terminal needs
On the synchronous base of Access Layer intermediate station to be synchronized to.
Synchronization between intermediate station with intermediate station: for the intermediate station under same website, by interconnection network chain
Respective GPS(Global Positioning System, global positioning system are shared in road) time or pass through
Hardware connection mode shares hardware time order, adjusts the work schedule of self, is synchronized on same benchmark,
And the supplier of this benchmark is Access Layer intermediate station or the reception receiving upward signal in this website
To the link layer intermediate station from another website signal, for the link layer intermediate station of different websites, also adopt
Take and receive the principle that direction launch party synchronizes.
The timing synchronization process of intermediate station in the embodiment of the present invention it is further illustrated by below in conjunction with Fig. 4.
As shown in Figure 4, it is the timing synchronization schematic diagram of intermediate station in the embodiment of the present invention.
Wherein, sequential is launched in oblique wire frame representation, and backslash wire frame representation receives sequential, and grey box represents invalid
Sequential.
When terminal S1 of website 1 initiates a calling, the Access Layer intermediate station A of website 1 receives
The upward signal of self terminal, and the sequential of the synchronizing information adjustment work according to the upward signal received,
After waiting a transmitting sequential, turn out in the next one launches the signal being currently received in sequential, with
Time Access Layer intermediate station A the upward signal received is passed to by Internetwork link in the link layer of website 1
Turntable A, the Access Layer intermediate station A and link layer intermediate station A of website 1 are shared by Internetwork link
Gps time, or synchronize, therefore in link layer by the way of hardware connects and shares work schedule
Upward signal is launched by turntable A with Access Layer intermediate station A simultaneously.
The link layer intermediate station B of website 2 receives after the signal of the link layer intermediate station A of website 1,
Synchronizing information according to signal of eating dishes without rice or wine adjusts self work schedule, after waiting a transmitting sequential, at next
The signal being currently received in individual transmitting sequential is turned out.
The link layer intermediate station B that the link layer intermediate station C of website 3 receives from website 2 sends out by eating dishes without rice or wine
The signal come over, is given to the Access Layer intermediate station C of website 3, simultaneously by interconnection by Internetwork link
The mode that network chain road or hardware connect synchronizes, and after waiting a transmitting sequential, launches in sequential at the next one
In turn out.
Terminal S2 receives the Access Layer downstream signal from website 3, according to the synchronizing information of downstream signal
Adjust the work schedule of self.
In actual applications, two intermediate stations carrying out receiving and dispatching are with frequency different time-gap.In order to save further
All intermediate stations of same website can be carried out synchronized transmissions or reception by frequency, as it is shown in figure 5, this
Sample, can make these intermediate stations share same transmitting antenna and same reception antenna, only need to be at this station
The separator and conjunction being connected with the Access Layer intermediate station in this website and link layer intermediate station respectively is set in point
Grow up to be a useful person, wherein, described separator for separate described reception antenna receive signal, and will separate after
Signal is sent to Access Layer intermediate station and the link layer intermediate station of correspondence；Described synthesizer is for by described station
Access Layer intermediate station in point and link layer intermediate station merge after by the transmitting of described transmitting antenna.
Correspondingly, the embodiment of the present invention also provides for a kind of wireless interconnected method between website, and the method can be answered
For previously described various system group network patterns.
As shown in Figure 6, being a kind of flow chart of the method, in this embodiment, described website includes:
The Access Layer intermediate station connected by Internetwork link and link layer intermediate station, each intermediate station uses transmitting-receiving same
Frequency but the working method of different time-gap carries out receiving and transmitting signal.The method comprises the following steps:
Step 601, carries out terminal access by the Access Layer intermediate station in website.
Specifically, on the one hand, after described Access Layer intermediate station receives the transmitting signal of terminal, by described
The transmitting signal of terminal is forwarded to described link layer intermediate station；On the other hand, described Access Layer intermediate station connects
After receiving the signal that described link layer intermediate station forwards, the signal forwarded by described link layer intermediate station sends
To described terminal.
Under different networking models, the transmitting signal of described terminal is forwarded to by described Access Layer intermediate station
Described link layer intermediate station has different situations, specifically includes:
It is positioned at the link layer intermediate station of same website, the most described access with described Access Layer intermediate station if had
Layer intermediate station sends the signal of launching of described terminal the link of described same website to by Internetwork link
Layer intermediate station, so that the transmitting signal of described terminal is sent to by the link layer intermediate station of described same website
Adjacent sites；
Without being positioned at the link layer intermediate station of same website with described Access Layer intermediate station, then described in connect
Enter layer intermediate station and wirelessly send the transmitting signal of described terminal to described adjacent sites.
Such as, described Access Layer intermediate station and described link layer intermediate station are positioned at same website, then described in connect
Enter layer intermediate station and receive, by Internetwork link, the signal that described link layer intermediate station forwards；Described Access Layer
Intermediate station is positioned at different website from described link layer intermediate station, and the most described Access Layer intermediate station is connect by wireless
Receive the signal that described link layer intermediate station forwards.
Step 602, by the link layer intermediate station in website carry out between website wireless interconnected；Same
Link layer intermediate station in website is connected by Internetwork link with Access Layer intermediate station.
Specifically, after described link layer intermediate station receives the transmitting signal of adjacent sites, by described adjacent
The signal of launching of website is forwarded to and the access of the described same website of link layer intermediate station by Internetwork link
Layer intermediate station；Described link layer intermediate station receives and the Access Layer of the described same website of link layer intermediate station
After the signal that intermediate station is forwarded by Internetwork link, the signal forwarded by described Access Layer intermediate station sends
To described adjacent sites.
Certainly, between embodiment of the present invention website wireless interconnected method be not limited in above-mentioned signal transmitting and
Transfer process, according to the difference of actual networking, it is also possible to has and different realizes process, before specifically can refer to
Description in each embodiment in face, does not repeats them here.
It should be noted that in the method for the embodiment of the present invention, the work of the Access Layer intermediate station of adjacent sites
Working frequency is different；The operating frequency of the link layer intermediate station of adjacent sites is identical；Access in same website
Layer intermediate station is different with the operating frequency of link layer intermediate station.And, can there is multiple chain in same website
Road floor intermediate station, the operating frequency of the plurality of link layer intermediate station is different.
It addition, in order to prevent the interference between adjacent sites, in the methods of the invention, if described website is only
Having an adjacent sites, the link layer intermediate station in the most described website is believed in the transmitting receiving described website
After number, forbid launching；When wirelessly launching signal, forbid receiving.
Wireless interconnected method between embodiment of the present invention website, arrange in website by Internetwork link with connect
Enter the link layer intermediate station that layer intermediate station is connected.Owing to utilizing link layer intermediate station to realize the nothing between website
Line interconnects, and therefore need not increase extra hardware conversion equipment and expense, and networking flexibility, extension
Property is strong.Owing to each intermediate station uses single-frequency, different time-gap to carry out receiving and transmitting signal, therefore can effectively save
Save frequency and duplexer, reduce the probability of happening of frequency conflicts, improve the stability of system.And, eventually
End need not activate Access Layer intermediate station, it is possible to achieve access system faster.
Correspondingly, the embodiment of the present invention also provides for a kind of website, as it is shown in fig. 7, be this website 700
A kind of structural representation.
In this embodiment, described website includes: the Access Layer intermediate station connected by Internetwork link
701 and link layer intermediate station 702；Described Access Layer intermediate station 701 carries out system access for terminal；Institute
State wireless interconnected between website of link layer intermediate station 702；Each intermediate station use transmit-receive cofrequency but not
Receiving and transmitting signal is carried out with the working method of time slot.
In actual applications, described Access Layer intermediate station 701 and link layer intermediate station 702 can carry out same
Step is launched or receives.
It addition, described Access Layer intermediate station 701 and link layer intermediate station 702 can share one receives sky
Line and a transmitting antenna, and described website 700 also includes: and separator and synthesizer (are not schemed
Show).Wherein:
Described separator is connected with described Access Layer intermediate station 701 and link layer intermediate station 702 respectively, uses
In separate described reception antenna receive signal, and will separate after signal be sent to correspondence Access Layer in
Turntable and link layer intermediate station；
Described synthesizer is connected with described Access Layer intermediate station 701 and link layer intermediate station 702 respectively, uses
Sent out by described transmitting antenna after the Access Layer intermediate station in described website and link layer intermediate station are merged
Penetrate.
When realizing interconnection between different website, described Access Layer intermediate station 701 and link layer intermediate station 702
Operating frequency different.
Between each embodiment in this specification, identical similar part sees mutually, each enforcement
What example stressed is all the difference with other embodiments.Especially for equipment and system embodiment
For, owing to it is substantially similar to embodiment of the method, so describing fairly simple, relevant part sees
The part of embodiment of the method illustrates.Equipment described above and system embodiment are only schematically
, the wherein said unit illustrated as separating component can be or may not be physically separate
, the parts shown as unit can be or may not be physical location, i.e. may be located at one
Place, or can also be distributed on multiple NE.Can select therein according to the actual needs
Some or all of module realizes the purpose of the present embodiment scheme.And, above-mentioned transmission equipment and reception
Equipment can be integrated on a physical equipment, it is provided that corresponding transmission and receive capabilities.This area is common
Technical staff, in the case of not paying creative work, is i.e. appreciated that and implements.It addition, above-mentioned respectively
Equipment in embodiment can be hand-held terminal device such as hand transceiver, it is also possible to is that other are the most vehicle-mounted
The communication equipment that platform etc. are similar.
Only the preferred embodiment of the present invention disclosed above, but the present invention is not limited to this, any
What those skilled in the art can think does not has creative change, and before without departing from the principle of the invention
Put the some improvements and modifications made, all should be within the scope of the present invention.
Claims (16)
1. wireless telecommunication systems between a website, it is characterised in that based on DMR agreement, be applied to nothing
Line intercom system, including: multiple websites；
At least one of which website includes: the Access Layer intermediate station connected by Internetwork link and link
Layer intermediate station；
Other website at least includes: Access Layer intermediate station；
Described Access Layer intermediate station carries out system access for terminal；Described link layer intermediate station is used for website
Between wireless interconnected；Each intermediate station uses transmit-receive cofrequency but the working method of different time-gap carries out transmitting-receiving letter
Number；Access Layer intermediate station and the link layer intermediate station of same website carry out synchronized transmissions or reception；Each transfer
Platform adds synchronization mechanism, receiving side signal is synchronized to signal launch party, and is provided by signal launch party
Synchronizing datum signal.
2. the system as claimed in claim 1, it is characterised in that the Access Layer transfer in same website
Platform and link layer intermediate station share in a reception antenna and a transmitting antenna, and described same website
Also include:
Separator, is connected with the Access Layer intermediate station in described website and link layer intermediate station respectively, is used for
Separate described reception antenna receive signal, and will separate after signal be sent to correspondence Access Layer transfer
Platform and link layer intermediate station；
Synthesizer, is connected with described Access Layer intermediate station and link layer intermediate station respectively, for by described station
Access Layer intermediate station in point and link layer intermediate station merge after by the transmitting of described transmitting antenna.
3. system as claimed in claim 1 or 2, it is characterised in that the Access Layer transfer of adjacent sites
The operating frequency of platform is different；The operating frequency of the link layer intermediate station of adjacent sites is identical；In same website
Access Layer intermediate station different with the operating frequency of link layer intermediate station.
4. system as claimed in claim 1 or 2, it is characterised in that have multiple link in same website
Layer intermediate station, the operating frequency of the plurality of link layer intermediate station is different.
5. system as claimed in claim 1 or 2, it is characterised in that in described website only one of which phase
In the case of neighbors, the link layer intermediate station in described website is configured to receiving described website
After launching signal, forbid launching；When wirelessly launching signal, forbid receiving.
6. wireless interconnected method between a website, it is characterised in that based on DMR agreement, be applied to nothing
Line intercom system, described website includes: the Access Layer intermediate station connected by Internetwork link and link layer
Intermediate station；Each intermediate station uses transmit-receive cofrequency but the working method of different time-gap carries out receiving and transmitting signal；
Described method includes:
Terminal access is carried out by the Access Layer intermediate station in website；
By the link layer intermediate station in website carry out between website wireless interconnected；Chain in same website
Road floor intermediate station is connected by Internetwork link with Access Layer intermediate station；The Access Layer intermediate station of same website
Synchronized transmissions or reception is carried out with link layer intermediate station；Each intermediate station adds synchronization mechanism, signal connects
Debit is synchronized to signal launch party, and is provided synchronizing datum signal by signal launch party.
7. method as claimed in claim 6, it is characterised in that described by the Access Layer in website
The terminal that carries out intermediate station accesses and includes:
After described Access Layer intermediate station receives the transmitting signal of terminal, the transmitting signal of described terminal is turned
It is dealt into described link layer intermediate station；
After described Access Layer intermediate station receives the signal that described link layer intermediate station forwards, by described link
The signal that layer intermediate station forwards is sent to described terminal.
8. method as claimed in claim 7, it is characterised in that described Access Layer intermediate station is by described
The transmitting signal of terminal is forwarded to described link layer intermediate station and includes:
It is positioned at the link layer intermediate station of same website, the most described access with described Access Layer intermediate station if had
Layer intermediate station sends the signal of launching of described terminal the link of described same website to by Internetwork link
Layer intermediate station, so that the transmitting signal of described terminal is sent to by the link layer intermediate station of described same website
Adjacent sites；
Without being positioned at the link layer intermediate station of same website with described Access Layer intermediate station, then described in connect
Enter layer intermediate station and wirelessly send the transmitting signal of described terminal to described adjacent sites.
9. method as claimed in claim 7, it is characterised in that described method also includes:
Described Access Layer intermediate station and described link layer intermediate station are positioned at same website, in the most described Access Layer
Turntable receives, by Internetwork link, the signal that described link layer intermediate station forwards；Or
Described Access Layer intermediate station is positioned at different website from described link layer intermediate station, in the most described Access Layer
The signal that turntable is forwarded by link layer intermediate station described in wireless receiving.
10. method as claimed in claim 6, it is characterised in that described by the link layer in website
What intermediate station carried out between website wireless interconnected includes:
After described link layer intermediate station receives the transmitting signal of adjacent sites, sending out described adjacent sites
Penetrate signal to be forwarded to and the Access Layer transfer of the described same website of link layer intermediate station by Internetwork link
Platform；
Described link layer intermediate station receives and the Access Layer intermediate station of the described same website of link layer intermediate station
By after the signal that Internetwork link forwards, the signal that described Access Layer intermediate station forwards is sent to described
Adjacent sites.
11. methods as described in any one of claim 6 to 10, it is characterised in that connecing of adjacent sites
The operating frequency entering layer intermediate station is different；The operating frequency of the link layer intermediate station of adjacent sites is identical；With
Access Layer intermediate station in one website is different with the operating frequency of link layer intermediate station.
12. methods as described in any one of claim 6 to 10, it is characterised in that have in same website
Multiple link layer intermediate stations, the operating frequency of the plurality of link layer intermediate station is different.
13. methods as described in any one of claim 6 to 10, it is characterised in that
If described website only one of which adjacent sites, the link layer intermediate station in the most described website is receiving
After the transmitting signal of described website, forbid launching；When wirelessly launching signal, forbid connecing
Receive.
14. 1 kinds of websites, it is characterised in that based on DMR agreement, be applied to wireless intercom system,
Including: the Access Layer intermediate station connected by Internetwork link and link layer intermediate station；In described Access Layer
Turntable carries out system access for terminal；It is wireless interconnected that described link layer intermediate station is used between website；
Each intermediate station uses transmit-receive cofrequency but the working method of different time-gap carries out receiving and transmitting signal；In described Access Layer
Turntable and link layer intermediate station carry out synchronized transmissions or reception；Each intermediate station adds synchronization mechanism, by believing
Number recipient is synchronized to signal launch party, and is provided synchronizing datum signal by signal launch party.
15. websites as claimed in claim 14, it is characterised in that
Described Access Layer intermediate station and link layer intermediate station share a reception antenna and a transmitting antenna,
And also include in described website:
Separator, is connected with described Access Layer intermediate station and link layer intermediate station respectively, is used for separating described
Reception antenna receive signal, and will separate after signal be sent to correspondence Access Layer intermediate station and link
Layer intermediate station；
Synthesizer, is connected with described Access Layer intermediate station and link layer intermediate station respectively, for by described station
Access Layer intermediate station in point and link layer intermediate station merge after by the transmitting of described transmitting antenna.
16. websites as described in claims 14 or 15, it is characterised in that described Access Layer intermediate station
Different with the operating frequency of link layer intermediate station.
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| CN201210165653.6A CN102711134B (en) | 2012-05-25 | 2012-05-25 | Wireless telecommunication systems, method and website between website |
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| CN102891712A (en) * | 2012-10-08 | 2013-01-23 | 科立讯通信股份有限公司 | Wireless digital link relaying method |
| CN103139792B (en) * | 2013-01-30 | 2016-09-07 | 海能达通信股份有限公司 | The method and system that uplink signal of base station covers are improved based on DMR receiver |
| CN103312406B (en) * | 2013-06-20 | 2017-04-19 | 海能达通信股份有限公司 | Portable wireless signal transfer system, method and terminal |
| US10098180B2 (en) | 2013-06-20 | 2018-10-09 | Hytera Communications Corporation Limited | Portable wireless signal transfer system, method and terminal |
| CN104243010B (en) * | 2014-09-22 | 2017-12-26 | 哈尔滨海能达科技有限公司 | A kind of intermediate station wireless interconnected method, system and intermediate station |
| CN106559756B (en) * | 2016-11-18 | 2019-10-18 | 广州海格通信集团股份有限公司 | A kind of mobile station, the communication system of intermediate station and network-building method |
| CN106792964A (en) * | 2016-12-15 | 2017-05-31 | 陕西烽火实业有限公司 | A kind of DMR systems cascade method of calling |
| CN110012552B (en) * | 2018-08-29 | 2021-06-11 | 深圳市天工测控技术有限公司 | Wireless network emergency system and establishment method |
| CN109698717B (en) * | 2018-12-26 | 2021-10-15 | 广州维德科技有限公司 | Networking method for common-frequency and simulcasting of relay station and relay station |
| CN109451553A (en) * | 2018-12-29 | 2019-03-08 | 成都中航信虹科技股份有限公司 | Dedicated netting communication system and method |
| CN112968724A (en) * | 2021-03-03 | 2021-06-15 | 深圳市欧标实业发展有限公司 | Intercom system, communication method thereof and transfer platform |
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