CN106160781A - The indoor distributed system of various wireless communication standard fusion and method of work thereof - Google Patents
The indoor distributed system of various wireless communication standard fusion and method of work thereof Download PDFInfo
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- CN106160781A CN106160781A CN201610703805.1A CN201610703805A CN106160781A CN 106160781 A CN106160781 A CN 106160781A CN 201610703805 A CN201610703805 A CN 201610703805A CN 106160781 A CN106160781 A CN 106160781A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/50—Circuits using different frequencies for the two directions of communication
- H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
- H04B1/525—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa with means for reducing leakage of transmitter signal into the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/18—Network planning tools
- H04W16/20—Network planning tools for indoor coverage or short range network deployment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
- H04W88/10—Access point devices adapted for operation in multiple networks, e.g. multi-mode access points
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Abstract
The indoor distributed system of various wireless communication standard fusion and method of work thereof, the present invention relates to indoor distributed system.At present, solve Intermodulation Interference problem based on indoor distributed system and three total construction costs of operator of reduction can not get both.The present invention includes the first backbone, the second backbone, the first conjunction pipeline equipment, the second conjunction pipeline equipment and electric bridge, the first described backbone closes pipeline equipment by first and connects with one or more signal sources, and the second described backbone closes pipeline equipment by second and connects with one or more signal sources；Signal source is divided into closes the first signal source group that pipeline equipment is connected and the secondary signal source group being connected with the second conjunction pipeline equipment with first, two inputs of one electric bridge are connected with an output node of the first backbone, an output node of the second backbone respectively, and the outfan of electric bridge is connected with indoor distribution network.The technical program solves Intermodulation Interference problem, reduces investment and the construction cost of Joint construction and sharing simultaneously.
Description
Technical field
The present invention relates to indoor distributed system, particularly relate to various wireless communication standard merge indoor distributed system and
Method of work.
Background technology
Indoor distributed system is for indoor mobile telephony customer group, in improving building the one of mobile communication environment
Plant communication plan；It is to utilize domestic aerial distributed network that the signal of base station is evenly distributed on indoor every nook and cranny, thus ensures
Room area has the mobile communication system that preferable signal covers.
China is now with movement, UNICOM and three communication enterprises of telecommunications, and every communication enterprise has two kinds or three
Planting mobile communication technology standard, i.e. every communication enterprise needs to be uniformly distributed two or three mobile communications network signal
Every nook and cranny in building, in general, every communication enterprise is all to build alone a set of indoor in building to divide
Distribution system, accesses this set indoor distributed system after then the two or three mobile communications network signal of oneself being closed road.
In recent years, three communication enterprises start to use Joint construction and sharing mode in the building that some are big, i.e. everybody
Wishing to share indoor distributed system, the purpose of do so is the total construction cost in order to reduce by three operation enterprises.Due to every family
Communication enterprise has two or three mobile communication technology standard, after using Joint construction and sharing mode, will have more (6 tunnels
Or 6 is more than tunnel) mobile communications network signal demand closes road and accesses same set of indoor distributed system.
Citing: as it is shown in figure 1, be the indoor distributed system figure of certain mansion 11 floor～26 floor, 6 kinds of mobile radio communications in Fig. 1
Network signal A～F is by POI(multi-system combiner) close road and be followed by into backbone, export after backbone progressive power distributes
16 tunnels；This 16 road signal is respectively connected to the branch line of 16 floors, and after in branch line, progressive power distributes again, final indoor of accessing are divided
Cloth antenna completes signal and covers；
In this case, the downstream signal in multichannel mobile communications network signal easily produces inter-modulated signal and interferes with some
The upward signal of mobile communications network signal, thus affect the performance indications of these mobile communications networks and mobile phone user makes
With impression, so two set indoor distributed systems are built in the most general employing, (uplink and downlink for multichannel mobile communications network signal are believed
Number build a set of indoor distributed system respectively) realize the Joint construction and sharing of three operators to evade Intermodulation Interference problem.
This Joint construction and sharing technical scheme the most substantially reduces by three total construction costs of operator, and its technology existed lacks
Fall into as follows:
1, three operators are intended to use a set of indoor distributed system to realize Joint construction and sharing so that total construction cost is greatly reduced, but
It is owing to Intermodulation Interference problem cannot effectively control always, so using the Joint construction and sharing scheme of a set of indoor distributed system to be difficult to
Realize.
If 2 use construction uplink and downlink two to overlap indoor distributed system when Joint construction and sharing in order to evade Intermodulation Interference
Method, many again a set of indoor distributed system construction costs.
3, the conjunction pipeline equipment POI that communication network signal more than 6 tunnels and 6 tunnels uses when closing road because of structure complicated so becoming
This is higher, corresponds generally to 0.3～0.5 set indoor distributed system construction cost, causes again the rising of construction cost.
4, this multi-system combiner POI is because of structure complexity, so mobile communications network signal power can substantially be reduced, for
Compensation signal power, also needs to increase extra communication system equipment, the communication system in general increased in design
System equipment cost is equivalent to 0.4～0.6 set indoor distributed system construction cost, again results in the rising of construction cost.
5, in the case of only Liang Jia operator Joint construction and sharing, this uplink and downlink are used respectively to build a set of indoor distribution
The technical scheme of system, owing to adding POI and the investment of extra communication equipment, it is each that totle drilling cost necessarily exceedes this Liang Jia operator
From the cost sum individually built.Even three operator's Joint construction and sharing, use this technical scheme, totle drilling cost and three fortune
The cost sum that battalion business the most individually builds is the most suitable.
In sum, owing to the most thoroughly solving Intermodulation Interference problem, this construction uplink and downlink two are used to overlap indoor distribution
The technical scheme of system realizes Joint construction and sharing, does not substantially reducing the construction costs, in some instances it may even be possible to can increase construction cost.
By the problem points that Intermodulation Interference occurs is investigated, it has been found that behind signal conjunction road in indoor distributed system
The subject matter point producing Intermodulation Interference is feeder head, in order to solve the technological deficiency that the program exists, it is possible to realize one
On set indoor distributed system, the multiple signals to three operators close road and reduce Intermodulation Interference problem, have the most taked
Technological improvement means are: reduce Intermodulation Interference by improving the means such as assembly technology, feeder head quality.
But the improved method taked does not has solution problem, reason is as follows:
1, for realize signal uniform distribution in building, an indoor distributed system is it is generally required to use thousands of feeder lines to connect
Head, and each feeder head is that on-the-spot hand assembled is on feeder line, it is impossible to ensure what each feeder head assembled
The most perfect.
2, workmen's technical merit of assembling feeder head is uneven, it is difficult to the integral installation of feeder head is greatly improved
Aglycon amount.
3, by redesigning the frame for movement of feeder head, raising outer conductor and the plating process of inner wire, raising connects
The various means such as the locking degree of head and feeder line still can not solve the Intermodulation Interference problem of indoor distributed system.
Even if 4 feeder head assemblings are no problem, feeder head produces because STRESS VARIATION is still possible with device junction
Raw Intermodulation Interference；Even if we find that in test of many times vibrations feeder line all can make intermodulation index great changes will take place gently.
In sum, excessively complicated and severe based on indoor distributed system installation environment, only by improve assembly technology and
The means of feeder head quality can not solve Intermodulation Interference problem, more cannot reduce by three total construction costs of operator.
Summary of the invention
The technical assignment of the technical problem to be solved in the present invention and proposition is to carry out prior art improving and improving,
There is provided indoor distributed system and the method for work thereof of the fusion of various wireless communication standard, to reach to reduce Intermodulation Interference purpose.For
This, the present invention takes techniques below scheme.
The indoor distributed system that various wireless communication standard merges, it is characterised in that: include the first backbone, the second trunk
The second conjunction pipeline equipment that line, first be connected with the first backbone input close pipeline equipment, are connected with the second backbone input
And be connected to be followed by into indoor distributed network two mains signal conjunction roads with the first backbone, the second backbone outfan
Electric bridge, the first described backbone closes pipeline equipment by first and connects with one or more signal sources, the second described backbone
Close pipeline equipment by second to connect with one or more signal sources；Signal source is divided into closes, with first, the first signal that pipeline equipment is connected
Source group and close the secondary signal source group that is connected of pipeline equipment with second, two inputs of an electric bridge respectively with the one of the first backbone
Individual output node, an output node of the second backbone are connected, and the outfan of electric bridge is connected with indoor distribution network；The most mutual
Cadre enrolled among workers disturbs little signal source and is classified as one group, and the signal of the first signal source group accesses the first trunk after closing road by the first conjunction pipeline equipment
Line, the signal of secondary signal source group accesses the second backbone, the first backbone, the second trunk after closing road by the second conjunction pipeline equipment
The signal of line is followed by into indoor distributed network through electric bridge combination road.
Two it may happen that the communication system signal power of Intermodulation Interference is the biggest, then the intermodulation interference signal power produced is also
The biggest, construction technology and material quality requirement for indoor distribution network are the highest；In turn, when Intermodulation Interference easily occurs
Two communication system signal power are the least, and intermodulation interference signal is the least, and the requirement to construction technology and quality of materials is the lowest.
The technical program closes road respectively after each communication system signal easily producing Intermodulation Interference problem is divided into two groups, then by two
Bar backbone transmission；It may happen that the communication system signal of Intermodulation Interference after repeated dispensing, power drops to a certain degree time
Again two-way backbone is accessed indoor distribution network by electric bridge combination road, under the conditions of same construction technology and quality of materials mutually
Cadre enrolled among workers disturbs and just can be greatly reduced.
The technical program significantly reduces the requirement to aspects such as assembly technology and feeder head quality, is greatly improved many
System closes the stability behind road, improves communication enterprise network quality and user's perception, thoroughly solves Intermodulation Interference pair
The impact that the network index of each operation enterprise and mobile phone user use, considerably reduces investment and the construction of Joint construction and sharing
Cost.
As improving further and supplementing technique scheme, present invention additionally comprises following additional technical feature.
Described the first backbone, the second backbone are equipped with multiple power-splitting device, the first backbone, the second trunk
Input signal power is dropped to after setting degree the first backbone and the second backbone output node by electric bridge combination road by line.
First backbone, the input signal power of the second backbone access electric bridge combination road after declining 12dB-18dB.Power
Little, intermodulation may be little.In actual application, the conjunction waypoint power standard of two-way backbone can be according to the construction technology of unit in charge of construction
Determine after many-sided consideration such as level, quality of materials, this website flow of the people (service traffics).
First backbone, the signal power of the second backbone access electric bridge combination road, signal merit after being down to 27dBm～33dBm
Rate is greatly reduced rear Intermodulation Interference and is also greatly reduced.
The first described signal source group is first operator's signal source, and secondary signal source group is the second operation signal
Source, first operator's signal source is connected with the first conjunction pipeline equipment, and second operator's signal source is closed pipeline equipment with second and is connected.
The first described signal source group is first operator's signal source, and described secondary signal source group is the second operator
Signal source, the 3rd operator's signal source, first operator's signal source is connected with the first conjunction pipeline equipment, second operator's signal source,
3rd operator's signal source is closed pipeline equipment with second and is connected, and wherein the maximum standard power of first operator's signal source is more than second
Operator's signal source, the standard power of the 3rd operator's signal source.
It is combiner or POI (Point Of Interface) that described the first conjunction pipeline equipment and second closes pipeline equipment.
Second closes pipeline equipment connects with multiple operators signal sources, and it is multisystem mixing platform that described second closes pipeline equipment
POI。
The indoor distribution method that various wireless communication standard merges, it is characterised in that include with step:
A) signal source is classified, be readily able to the communication system signal of Intermodulation Interference occur separately, be divided into the first signal source group
With secondary signal source group；
B) the first signal source group enters the first backbone after first closes pipeline equipment；Secondary signal source group closes pipeline equipment through second
Rear entrance the second backbone；
C) the first backbone carries out repeated dispensing to reduce power to the first signal source group；Second backbone is to secondary signal source
Group carries out repeated dispensing to reduce power；
D) when communication system signal power drop is to when being not likely to produce the power bracket of Intermodulation Interference, two-way backbone is passed through
Indoor distribution network is accessed on electric bridge combination road.
The output node power of the first backbone and the second backbone declines 12dB-18dB compared with input power, one
The output node of the output node of the first backbone and second backbone is connected with the input of electric bridge and carries out closing road output.
Beneficial effect:
1, thoroughly solve what the network index of each operation enterprise and mobile phone user were used by Intermodulation Interference due to this programme
Impact, it is not necessary to build uplink and downlink two again and overlap indoor distributed system, considerably reduces the investment of Joint construction and sharing and builds into
This.
2, after network signal being divided into two groups by this programme, owing to having only to use low cost combiner or small-sized POI to enter
Row system close road, it is not necessary to re-use original conjunction pipeline equipment POI and extra communication system equipment, close pipeline equipment POI and
Also have in communication system equipment purchase cost and decline largely.
3, double trunk multisystem mixing technical scheme is used, owing to decreasing the investment of a whole set of indoor distributed system and building
It is set as this, and the conjunction pipeline equipment POI that uses and extra communication system will be need not when building a set of indoor distributed system
System equipment, total investment and construction cost are compared with original Joint construction and sharing technical scheme, and fall is up to about 55%.
4, use this programme to carry out multisystem mixing and significantly reduce assembly technology and the requirement of feeder head quality, greatly
Improve greatly stability and the network quality of multisystem mixing.
Accompanying drawing explanation
Fig. 1 is existing indoor distributed system structural representation.
Fig. 2 is the first structural representation of the present invention.
Fig. 3 is the second structural representation of the present invention.
Fig. 4 is the third structural representation of the present invention.
In figure: 1-the first backbone；2-the second backbone；3-first closes pipeline equipment；4-second closes pipeline equipment；5-electric bridge.
Detailed description of the invention
Below in conjunction with Figure of description, technical scheme is described in further detail.
As shown in Figure 2,3, 4, the present invention includes first backbone the 1, second backbone 2 and the first backbone 1 input phase
The first conjunction pipeline equipment 3 even, second be connected with the second backbone 2 input close pipeline equipment 4 and with the first backbone 1, second
Backbone 2 outfan is connected two mains signal conjunction roads are followed by the electric bridge 5 into indoor distributed network, and described first is main
Main line 1 closes pipeline equipment 3 by first and connects with one or more signal sources, and the second described backbone 2 closes road by second and sets
Standby 4 connect with one or more signal sources；Signal source is divided into the first signal source group being connected with the first conjunction pipeline equipment 3 and with second
Close the secondary signal source group that pipeline equipment 4 is connected, two inputs of an electric bridge 5 respectively with an output joint of the first backbone 1
Point, an output node of the second backbone 2 are connected, and the outfan of electric bridge 5 is connected with indoor distribution network；Wherein Intermodulation Interference
Little signal source is classified as one group, and the signal of the first signal source group accesses the first backbone 1 after closing road by the first conjunction pipeline equipment 3,
The signal of secondary signal source group accesses the second backbone 2, first backbone the 1, second trunk after closing road by the second conjunction pipeline equipment 4
The signal of line 2 closes road through electric bridge 5 and is followed by into indoor distributed network.The technical program will easily produce each logical of Intermodulation Interference problem
Communication system signal closes road respectively after being divided into two groups, then by two backbone transmission；It may happen that the communication of Intermodulation Interference
Two-way backbone is closed road by electric bridge 5 when power drops to a certain degree after repeated dispensing and accesses indoor point by system signal again
Cloth network, under the conditions of same construction technology and quality of materials, Intermodulation Interference just can be greatly reduced.
The first backbone 1 can be worked as and decline 12dB-18dB compared with input power with the output node power of the second backbone 2
After, output node and the output node of second backbone 2 of first backbone 1 are repeatedly kicked into mutually with the input of electric bridge 5
Hang He road exports.Or first the signal power of backbone the 1, second backbone 2 be down to 27dBm～33dBm after access electric bridge 5 and close
Road.
In the technical program, all (more than 6 roads or 6 tunnels) network signals will no longer close road when closing road and enter same
POI (multi-system combiner), all signals are divided into two groups before closing road, when packet, will be not likely to produce Intermodulation Interference
Signal is placed on same group, owing to the signal kinds in every group reduces, low cost combiner or small-sized POI can be used to carry out system
Close road.In this case, even if closing the signal behind road in the case of signal power is higher by feeder head, existing
Under the conditions of construction technology, often the signal in group can be accomplished not produce Intermodulation Interference completely.Two groups of network signals are through too low one-tenth
After this combiner or small-sized POI close road respectively, carry out power distribution each via two set backbones.Often group signal is through repeatedly dividing
After joining, signal power constantly declines, and after signal power drops to a certain degree, then is carried out by two groups of network signal electric bridges 5
Secondary closes road, and owing at this moment signal power is less, secondary just can be greatly reduced Intermodulation Interference when closing road, thus thoroughly solves mutually
Cadre enrolled among workers disturbs the network index on each operation enterprise and the impact of mobile phone user's use.Secondary closes the signal behind road by follow-up
Multichannel branch line carries out power distribution further, arrives each antenna indoor, reaches the purpose of signal uniform fold, for mobile phone
User uses.Thoroughly solve Intermodulation Interference due to this programme network index and the mobile phone user of each operation enterprise are used
Impact, it is not necessary to build uplink and downlink two again and overlap indoor distributed system, considerably reduce the investment of Joint construction and sharing and build into
This.And, after network signal is divided into two groups by this programme, owing to having only to use low cost combiner or small-sized POI to carry out
System closes road, it is not necessary to re-use original complexity, expensive large-scale conjunction pipeline equipment POI and extra communication system equipment, is closing
Also have on pipeline equipment POI and communication system equipment purchase cost and decline largely.It addition, use double trunk multisystem mixing
Technical scheme, owing to decreasing investment and the construction cost of a whole set of indoor distributed system, and is building a set of indoor distribution
To need not use complicated, expensive large-scale conjunction pipeline equipment POI and extra communication system equipment during system, total investment and building
Being set as originally compared with original Joint construction and sharing technical scheme, fall is up to about 55%.
Embodiment one:
As a example by two operators, and as a example by standard C of standard A of operator X and operator Y exists third order intermodulation interference problem,
Illustrate its embodiment:
As in figure 2 it is shown, Liang Jia operator X and Y closes road, due to standard A and standard C of operator Y of operator X, to there are three rank mutual
Adjust interference problem, so first utilizing common combiner conjunction road to access the first backbone 1, the most again standard A and the B of operator X
Common combiner is utilized to close road standard C of operator Y, D and E；Owing to the standard A power of operator X is relatively big, therefore according to indoor
Compartment system figure finds out in the first backbone 1 that standard A in all branch roads is prominent but node less than 33dBm；According to
One backbone 1 replicates design the second backbone 2, and then each node electric bridge 5 corresponding for two backbones carries out closing road, defeated
The identical two-way gone out can be covered each by two regions.
Embodiment two:
As it is shown on figure 3, as a example by three operators, and there is third order intermodulation interference in standard C of standard A of operator X and operator Y
As a example by problem, illustrate its embodiment:
Owing to standard A of operator X and standard C of operator Y exist third order intermodulation interference problem, so first by operator X's
Standard A and B utilize common combiner to close road and access all standards of the first backbone 1, operator Y and operator Z first with general
Logical combiner or up-downgoing are closed road type POI and are carried out closing road, then access the second backbone 2, follow-up still by two backbones pair
The each node electric bridge 5 answered carries out closing road.
Embodiment three:
As shown in Figure 4, as a example by 6 road mobile communications network signals, its embodiment is illustrated.
1, all 6 roads mobile communications network signal (A～F) will no longer be closed road enter same POI (polyphyly integration when closing road
Pipeline equipment), all signals are divided into two groups before closing road, when packet, are placed on same by the signal being not likely to produce Intermodulation Interference
Group (such as: A, B are placed on one group, C～F is placed on another group).
2, reduce due to the signal kinds in every group, and be not susceptible to Intermodulation Interference, it is possible to use low cost
Combiner or small-sized POI carry out closing road.
3, two groups of network signals are carrying out after system closes road through the combiner of low cost or small-sized POI, respectively by the
One backbone 1 and the second backbone 2 carry out power distribution.
4, two groups of network signals in the case of power is higher by the feeder line in the first backbone 1 and the second backbone 2,
Device and joint carry out progressive power distribution, and under the conditions of existing construction technology, the signal in two groups is the first backbone 1 He
Second backbone 2 can be accomplished completely do not produce Intermodulation Interference, significantly reduce the first backbone 1 and the second backbone 2
Assembly technology and the requirement of feeder head quality, improve the stability of multisystem mixing
5, two groups of signals are after repeated dispensing, and each network signal power constantly declines, when signal power drops to a certain degree
After, then two groups of each 8 tunnels of network signal are carried out secondary conjunction road, due to the most each network signal power relatively with 8 electric bridges 5 respectively
Little, behind secondary conjunction road, produced Intermodulation Interference is greatly reduced the most therewith, thus thoroughly solves Intermodulation Interference to each operation enterprise
Network index and mobile phone user use impact.
6, access follow-up 16 road branch lines by electric bridge 5 two Ci He road Hou 16 road signal and enter mansion 11 floor～26 floor, enter
One step arrives each antenna indoor after carrying out power distribution, complete the purpose of signal uniform fold, for mobile phone user.
Indoor distributed system and method for work thereof that various wireless communication standard shown in figure 2 above-4 merges are the present invention
Specific embodiment, embodied substantive distinguishing features of the present invention and progress, can be according to actual use needs, the present invention's
Under enlightenment, it is carried out the equivalent modifications of the aspect such as shape, structure, all at the row of protection domain of this programme.
Claims (10)
1. the indoor distributed system that various wireless communication standard merges, it is characterised in that: include the first backbone (1), the second master
The first conjunction pipeline equipment (3) that main line (2) is connected with the first backbone (1) input is connected with the second backbone (2) input
The second conjunction pipeline equipment (4) and be connected with by two mains signal with the first backbone (1), the second backbone (2) outfan
Closing road and be followed by the electric bridge (5) into indoor distributed network, described the first backbone (1) closes pipeline equipment (3) and one by first
Or multiple signal source connects, described the second backbone (2) is by the second conjunction pipeline equipment (4) and one or more signal source phases
Connect；Signal source is divided into closes the first signal source group that pipeline equipment (3) is connected and be connected second with the second conjunction pipeline equipment (4) with first
Signal source group, two inputs of an electric bridge (5) respectively with an output node, second backbone (2) of the first backbone (1)
An output node be connected, the outfan of electric bridge (5) is connected with indoor distribution network；The signal source that wherein Intermodulation Interference is little is returned
Being one group, the signal of the first signal source group accesses the first backbone (1), secondary signal after closing road by the first conjunction pipeline equipment (3)
The signal of source group accesses the second backbone (2), the first backbone (1), the second backbone after closing road by the second conjunction pipeline equipment (4)
(2) signal closes road through electric bridge (5) and is followed by into indoor distributed network.
The indoor distributed system that various wireless communication standard the most according to claim 1 merges, it is characterised in that: described
First backbone (1), the second backbone (2) are equipped with multiple power-splitting device, the first backbone (1), the second backbone (2)
After input signal power drops to setting degree, the first backbone (1) passes through electric bridge (5) with the second backbone (2) output node
Close road.
The indoor distributed system that various wireless communication standard the most according to claim 2 merges, it is characterised in that: first is main
Main line (1), the signal power of the second backbone (2) access electric bridge (5) after declining 12dB-18dB and close road.
The indoor distributed system that various wireless communication standard the most according to claim 2 merges, it is characterised in that: first is main
Main line (1), the signal power of the second backbone (2) access electric bridge (5) after being down to 27dBm～33dBm and close road.
The indoor distributed system that various wireless communication standard the most according to claim 1 merges, it is characterised in that: described
First signal source group is first operator's signal source, and secondary signal source group is the second operation signal source, first operator's letter
Number source is closed pipeline equipment (3) with first and is connected, and second operator's signal source is connected with the second conjunction pipeline equipment (4).
The indoor distributed system that various wireless communication standard the most according to claim 1 merges, it is characterised in that: described
First signal source group is first operator's signal source, and described secondary signal source group is second operator's signal source, the 3rd fortune
Battalion's business's signal source, first operator's signal source is connected with the first conjunction pipeline equipment (3), second operator's signal source, the 3rd operator
Signal source is closed pipeline equipment (4) with second and is connected, and wherein the maximum standard power of first operator's signal source is more than the second operator
Signal source, the standard power of the 3rd operator's signal source.
The indoor distributed system that various wireless communication standard the most according to claim 1 merges, it is characterised in that: described
It is combiner or POI (Point Of Interface) that pipeline equipment (4) is closed in first conjunction pipeline equipment (3) and second.
The indoor distributed system that various wireless communication standard the most according to claim 1 merges, it is characterised in that: second closes
Pipeline equipment (4) connects with multiple operators signal sources, and the second described conjunction pipeline equipment (4) is POI (Point Of Interface).
9. the work of the indoor distributed system that employing various wireless communication standard described in claim 1-8 any claim merges
Make method, it is characterised in that comprise the following steps:
A) signal source is classified, be readily able to the communication system signal of Intermodulation Interference occur separately, be divided into the first signal source group
With secondary signal source group；
B) the first signal source group enters the first backbone (1) after first closes pipeline equipment (3)；Secondary signal source group closes road through second
Equipment (4) enters the second backbone (2) afterwards；
C) the first backbone (1) carries out repeated dispensing to reduce power to the first signal source group；Second backbone (2) is to the second letter
Number source group carries out repeated dispensing to reduce power；
D) when communication system signal power drop is to when being not likely to produce the power bracket of Intermodulation Interference, by two-way backbone by electricity
Bridge (5) closes road and accesses indoor distribution network.
The indoor distributed system method of work that various wireless communication standard the most according to claim 9 merges, its feature exists
12dB-18dB is declined compared with input power with the output node power of the second backbone (2) in: the first backbone (1), one
The output node of the first backbone (1) and the output node of second backbone (2) are connected with the input of electric bridge (5) and carry out
Conjunction road exports.
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| CN106160781B (en) | 2018-11-13 |
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