CN109672989A - Indoor distributed system - Google Patents
Indoor distributed system Download PDFInfo
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- CN109672989A CN109672989A CN201811603813.4A CN201811603813A CN109672989A CN 109672989 A CN109672989 A CN 109672989A CN 201811603813 A CN201811603813 A CN 201811603813A CN 109672989 A CN109672989 A CN 109672989A
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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
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/33—Services specially adapted for particular environments, situations or purposes for indoor environments, e.g. buildings
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
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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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Abstract
The embodiment of the present invention provides a kind of indoor distributed system, method for transmitting signals and device, indoor distributed system includes binary channels RRU and the single-pass road antenna for being distributed in each floor of building, the first port of binary channels RRU is connect with single-pass road antenna each in the first kind floor for being distributed in building by the first feeder line, the second port of binary channels RRU is connect with each single-pass road antenna in the second class floor for being distributed in building by the second feeder line, first kind floor is the floor that floor number is odd number, and the second class floor is the floor that floor number is even number.Based on the indoor distributed system, the terminal device of each floor is other than it can receive the signal of this layer of single-pass road antenna, the antenna of adjacent upper and adjacent lower can also be connected to penetrates signal, to realize by improving the purpose to realize binary channels indoor distributed system to single channel indoor distributed system, cost is low, low energy consumption for follow-up operation, and cost performance is high.
Description
Technical field
The present embodiments relate to indoor distribution technical field more particularly to a kind of indoor distributed systems.
Background technique
The main carrying high speed signal business of long term evolution (long term evolution, LTE), and visual telephone, high definition
Video flowing, the high speeds signal service such as large-scale interactive game commonly take place in indoor environment, those signal services are to network matter
It measures more demanding.To meet indoor signal service, operator is by building indoor distributed system largely to meet indoor signal
Business demand.
Under normal conditions, indoor distributed system is the single channel indoor distributed system that single-shot list is received, and operator passes through will be single
Bill receives (1transmit 1receive, 1T1R) Remote Radio Unit (radio remote unit, RRU) and is used as information source,
Several single-pass road antennas of every layer arrangement of building, RRU is connect with every layer of building of single-pass road antenna by feeder line, with reality
Existing single channel indoor distributed system signal covering.When wireless communication enters forth generation mobile communication (the 4th generation
Mobile communication, 4G) after the epoch, LTE standard introduces multiple-input and multiple-output (multiple input
Multiple output, MIMO) technology to be to promote user's uplink and downlink handling capacity.After introducing MIMO technology, macro base station is adopted on a large scale
With double RRU for receiving double hairs (2transmit 2receive, 2T2R).In order to introduce MIMO technology indoors to realize indoor bilateral
Road compartment system is needed for the building of single channel compartment system, hereinafter referred to as storage building has been arranged to single channel point
Distribution system improves.For the new building of not set single channel distributed system, hereinafter referred to as newly-built building need
Arrange single-pass road antenna or dual-channel antenna.Specifically, 1 tunnel that reuses+newly-built 1 tunnel mode is taken, every for storage building
Layer the same horizontal position arranges that two single-pass road antennas, two single-pass road antennas include original old single-pass road antenna and increase newly
The new single-pass road antenna added, two channels of the RRU of 2T2R are separately connected one single-pass road antenna of the same horizontal position, thus
Realize indoor binary channels distribution；Alternatively, by the way of completely newly-built 2 tunnels, so that every layer of the same horizontal position is distributed one pair
The binary channels of the channel antenna perhaps RRU of two single-pass road antenna 2T2R be separately connected dual-channel antenna different channels or
Two single-pass road antennas of the same horizontal position, to realize indoor binary channels distributed system.Similarly, for creating building,
By the way of completely newly-built 2 tunnels, so that every layer of the same horizontal position is distributed a dual-channel antenna or two single channel days
Line is to realize indoor binary channels distributed system covering.
However, since use has been put into the building, not allowing to rearrange the 2nd road point objectively for storage building
Cloth, and because its signal transmission performance of component aging and 1 newly-built tunnel can have biggish difference, i.e., the 1st tunnel to reuse is distributed
The signal transmission link in two channels is uneven, is often unable to reach the due performance of design, leads to nearly 1 times of investment increase, but
Very limited phenomenon, cost performance are low for performance boost；If abandoning original 1 tunnel distribution, the distribution of 2 tunnels is created again, causes resource unrestrained
Take, and cost is high, cost performance is lower；For creating building, by creating 2 road compartment systems, binary channels covering is equally deposited
In cost height, energy consumption is high for follow-up operation, the low problem of cost performance.
Summary of the invention
The embodiment of the present invention provides a kind of indoor distributed system, by single channel indoor distributed system is improved (or
Person directly adopts construction in newly-built building) to realize binary channels indoor distributed system, cost is low, follow-up operation energy consumption
Low, cost performance is high.
In a first aspect, the embodiment of the present invention provides a kind of indoor distributed system, comprising: binary channels radio frequency remote unit RRU
And it is distributed in the single-pass road antenna of each floor of building, wherein
The first port of the binary channels RRU and it is distributed in each single-pass road antenna in the first kind floor of the building
By the first feeder line connect, the second port of the binary channels RRU with it is each in the second class floor for being distributed in the building
A single-pass road antenna is connected by the second feeder line, and the first kind floor is the floor that floor number is odd number, second class
Floor is the floor that floor number is even number.
In a kind of feasible design, X single-pass road antenna is the single-pass road antenna in X floor, and the X floor is institute
Any one floor of building is stated, the X single channel antenna coverage areas includes: the X floor, X-1 floor and X+1
Floor.
In a kind of feasible design, the first port and the second port of the binary channels RRU corresponds to same bee
Nest cell, the binary channels RRU are set by the first port and the second port with the terminal in the building simultaneously
Standby transmission signal.
In a kind of feasible design, the first port and the second port of the binary channels RRU corresponds to different
Cellular cell, the binary channels RRU pass through in either port in the first port and the second port and the building
Terminal device transmit signal.
In a kind of feasible design, the single-pass road antenna of each floor of the building is arranged on same vertical line.
Second aspect, the embodiment of the present invention provide a kind of method for transmitting signals, comprising:
Binary channels RRU determines the floor where terminal device；
The binary channels RRU is corresponding by the adjacent floor of the corresponding single-pass road antenna of the floor and/or the floor
Single-pass road antenna, with the terminal device transmit signal.
In a kind of feasible design, the first port and second port of the binary channels RRU corresponds to same cellular cell；
The binary channels RRU transmits signal, packet by the corresponding single-pass road antenna of the floor, with the terminal device
It includes:
The corresponding list of the floor binary channels RRU adjacent by the corresponding single-pass road antenna of the floor and the floor
Channel antenna transmits signal with the terminal device.
In a kind of feasible design, the first port and the second port of the binary channels RRU corresponds to different
Cellular cell；
The binary channels RRU transmits signal, packet by the corresponding single-pass road antenna of the floor, with the terminal device
It includes:
The corresponding list of the floor binary channels RRU adjacent by the corresponding single-pass road antenna of the floor or the floor
Channel antenna transmits signal with the terminal device.
The third aspect, the embodiment of the present invention provide a kind of signal transmitting apparatus, comprising:
Processing module, for determining terminal device；
Transceiver module passes through the corresponding list of floor where the terminal device for using multiple-input and multiple-output mode
Channel antenna and/or the adjacent corresponding single-pass road antenna of floor of the floor transmit signal with the terminal device.
In a kind of feasible design, the first port and second port of the binary channels RRU corresponds to same cellular cell；Institute
Transceiver module is stated, for the floor corresponding single channel day adjacent by the corresponding single-pass road antenna of the floor and the floor
Line transmits signal with the terminal device.
In a kind of feasible design, the first port and the second port of the binary channels RRU corresponds to different
Cellular cell；The transceiver module, for the floor pair adjacent by the corresponding single-pass road antenna of the floor or the floor
The single-pass road antenna answered transmits signal with the terminal device.
Fourth aspect, the embodiment of the present invention provide a kind of signal transmitting apparatus, including processor, memory and are stored in institute
State the computer program that can be run on memory and on a processor, which is characterized in that when the processor executes described program
Realize method described in the various feasible implementations of first aspect or first aspect as above.
5th aspect, the embodiment of the present invention provides a kind of storage medium, instruction is stored in the storage medium, when its
When being run on computer, so that computer executes described in the various feasible implementations of first aspect or first aspect as above
Method.
6th aspect, the embodiment of the present invention provide a kind of computer program product, and the computer program product is calculating
When being run on machine, so that computer executes side described in the various feasible implementations of first aspect or first aspect as above
Method.
Indoor distributed system, method for transmitting signals and device provided in an embodiment of the present invention, indoor distributed system include double
Channel RRU and the single-pass road antenna for being distributed in each floor of building, the first port of binary channels RRU and are distributed in building
Each single-pass road antenna is connected by the first feeder line in first kind floor, the second port of binary channels RRU and is distributed in building
The second class floor in each single-pass road antenna by the second feeder line connect, first kind floor is the building that floor number is odd number
Layer, the second class floor is the floor that floor number is even number.Based on the indoor distributed system, adjacent upper and lower level antenna is considered as one
Two-way compartment system is covered, and then uses binary channels RRU, the terminal device of each floor can be led to by two of binary channels RRU
Road and the RRU transmit signal, so that the terminal device of each floor is other than it can receive the signal of this layer of single-pass road antenna,
The antenna of adjacent upper and adjacent lower can also be connected to penetrates signal, to realize by single channel indoor distributed system
The purpose to realize binary channels indoor distributed system is improved, cost is low, and low energy consumption for follow-up operation, and cost performance is high.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of configuration diagram of indoor distributed system provided in an embodiment of the present invention；
Fig. 2 is a kind of rate comparison figure of indoor distributed system provided in an embodiment of the present invention；
Fig. 3 is a kind of flow chart of method for transmitting signals provided in an embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of signal transmitting apparatus provided in an embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of binary channels RRU provided in an embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
LTE is 3G (Third Generation) Moblie partnership (3rd generation partnership project, 3GPP)
Organize Universal Mobile Communication System (universal mobile telecommunications system, UMTS) skill of customization
The long term evolution of art standard, with the extensive networking of LTE, LTE network covering is covered from macro to depth covering, indoor distribution
Coverage direction transformation, especially indoor distributed covering, building internal structure is different, and cloth net topology is complicated.Moreover, the 4G epoch adopt
After LTE technology standard, the antenna technology of MIMO is introduced, to significantly promote the throughput of wireless network.LTE technology machine
In system, that macro base station uses on a large scale is the RRU and antenna of 2T2R, and in terms of indoor distributed system, it is contemplated that construction two-way
The higher cost of antenna feeder generallys use single-pass road antenna, and the information source of indoor distributed system also uses the RRU of 1T1R.Thus
Known to: existing indoor distributed system can no longer meet the signal service demand based on MIMO technology.
In order to introduce MIMO technology in compartment system indoors, to realize indoor binary channels compartment system, for being arranged
The building of single channel compartment system, hereinafter referred to as storage building need to improve single channel compartment system.For not
The new building of single channel distributed system is set, and hereinafter referred to as newly-built building need to arrange single-pass road antenna or bilateral
Road antenna.For storage building, in development, 1 tunnel that reuses+newly-built 1 tunnel mode is taken, in every layer of the same horizontal position cloth
Two single-pass road antennas are set, which includes original old single-pass road antenna and the new single channel day that newly increases
Line, the binary channels of the RRU of 2T2R are separately connected a single-pass road antenna of the same horizontal position, to realize indoor binary channels point
Cloth；Alternatively, by the way of completely newly-built 2 tunnels, so that every layer of the same horizontal position is distributed a dual-channel antenna, 2T2R's
The binary channels of RRU is separately connected the different channels of dual-channel antenna.It, can also be in addition, in by the way of completely newly-built 2 tunnels
2 single-pass road antennas of the same horizontal position of newly-built every layer of building, the binary channels of the RRU of 2T2R are separately connected a single channel
Antenna, to realize indoor binary channels distributed system.
However, since use has been put into the building, not allowing to rearrange the 2nd road point objectively for storage building
Cloth or newly-built 2 tunnels distribution, if establishing by force, cost is high, and energy consumption is high for follow-up operation, and cost performance is low；For creating building,
Every layer of the same horizontal position, which is distributed a dual-channel antenna or two single-pass road antennas, could realize indoor binary channels distribution system
System equally exists cost height, and energy consumption is high for follow-up operation, the low problem of cost performance.
Therefore, it how under the premise of not increasing complexity, the difficulty of NE management of network topology, makes full use of existing
LTE network resource completes indoor distributed covering, becomes problem anxious to be resolved.
In view of this, the embodiment of the present invention provides a kind of indoor distributed system and method for transmitting signals, by single channel
Indoor distributed system is improved to realize binary channels indoor distributed system, and cost is low, and low energy consumption for follow-up operation, cost performance
It is high.
Fig. 1 is a kind of configuration diagram of indoor distributed system provided in an embodiment of the present invention.Fig. 1 is please referred to, the present invention
The indoor distributed system that embodiment provides includes binary channels Remote Radio Unit (remote radio unit, RRU) and distribution
In the single-pass road antenna of each floor of building.Wherein, the first port of the binary channels RRU and it is distributed in the building
Each single-pass road antenna is connected by the first feeder line in first kind floor, the second port of the binary channels RRU and is distributed in institute
The each single-pass road antenna stated in the second class floor of building is connected by the second feeder line, and the first kind floor is floor volume
Number be odd number floor, the second class floor is the floor that floor number is even number.
Illustratively, referring to Figure 1, the floor of building is divided into two classes: the first kind is the building that floor number is odd number
Layer, the second class is the floor that floor number is even number.For example, 3 layers of a building basement, 25 layers on the ground, then first kind building
Floor is 1 building, 3 buildings, 5 buildings ... 25 buildings, and the second class floor is 2 buildings, 4 buildings, 6 buildings ... 24 buildings.In addition, according to the number of plies of basement
With 1 building relationship, the different layers of basement can be divided into first kind floor or the second class floor.For example, 1 building is the first kind
Floor, then the basement one adjacent with 1 building, i.e. B1 layers belongs to the second class floor；Two layers of the underground adjacent with basement one, i.e.,
B2 layers belong to first kind floor；With the adjacent F3/B3 in two layers of underground, i.e. B3 layers belongs to the second class floor.Namely
It says, the same building, the different floors in adjacent two layers belong to inhomogeneous floor.The building, which can be, to be arranged
The storage building of single-pass road antenna are also possible to newly-built building, when arranging net in the newly-built building, arrange single-pass road antenna.
Building can be the consistent building of upper and lower structures, since upper and lower structures are consistent, be conducive to wearing for upper and lower layer signal
Thoroughly.For the angle of binary channels RRU, the corresponding channel of a port of binary channels RRU, therefore, two of binary channels RRU
Distinguish the different floor of staggered floor covering building in channel.
Fig. 1 is please referred to, first kind floor is distributed in, such as B2,1 building (1F), 3 buildings (3F), 5 buildings (5F) ... 25 buildings (25F)
In single-pass road antenna connected by the first port of the first feeder line and RRU, the second class floor is distributed in, such as B3, B1,2 buildings
(2F), 4 buildings (4F), the single-pass road antenna in 6 buildings (6F) ... 24 buildings (24F) connected by the second port of the second feeder line and RRU
It connects.For the terminal device (not including top layer and the bottom) in any one floor of the building, the terminal device in addition to
Outside the signal that this layer of single-pass road antenna can be received, can also be connected to the antenna of adjacent upper and adjacent lower penetrates signal,
It is equivalent to the effect that 2 × 2MIMO (i.e. double-current) is realized with single channel compartment system.For example, terminal device is located at 4 buildings, then end
End equipment can receive the single channel day to 3 buildings and 5 buildings other than it can receive the signal that 4 buildings single-pass road antennas are sent
Line penetrates signal.That is, adjacent upper and lower level antenna is considered as a set of two-way compartment system in the embodiment of the present invention, into
And binary channels RRU is used, the terminal device of each floor can transmit signal by two channels of binary channels RRU and the RRU.
It should be noted that being not intended to limit the number of plies, layer height and area of building etc. in the embodiment of the present invention.In addition, every
The single channel antenna number of layer distribution is related with the area of floor.For example, if building it is 20 layers high, every layer is all 1000
Square metre, if the area coverage of a single-pass road antenna is 200 square metres, every layer needs to arrange 5 single-pass road antennas, this 5
The number of a single-pass road antenna is followed successively by single-pass road antenna 1, single-pass road antenna 2, single-pass road antenna 3, single-pass road antenna 4 and single-pass
Road antenna 5, then different floors, the identical single-pass road antenna of number are substantially on a vertical line.
Indoor distributed system provided in an embodiment of the present invention including binary channels RRU and is distributed in each floor of building
Each single-pass road antenna passes through in single-pass road antenna, the first port of binary channels RRU and the first kind floor for being distributed in building
The connection of first feeder line, the second port of binary channels RRU and each single-pass road antenna being distributed in the second class floor of building
It is connected by the second feeder line, first kind floor is the floor that floor number is odd number, and it is even number that the second class floor, which is floor number,
Floor.Based on the indoor distributed system, adjacent upper and lower level antenna is considered as a set of two-way compartment system, and then use binary channels
The terminal device of RRU, each floor can transmit signal by two channels of binary channels RRU and the RRU, so that each floor
Terminal device other than it can receive the signal of this layer of single-pass road antenna, adjacent upper and adjacent lower can also be connected to
Antenna penetrates signal, to realize by improving to single channel indoor distributed system to realize binary channels indoor distribution system
The purpose of system, cost is low, and low energy consumption for follow-up operation, and cost performance is high.
In above-described embodiment, X single-pass road antenna is the single-pass road antenna in X floor, and the X floor is described builds
Any one floor of object is built, the X single channel antenna coverage areas includes: the X floor, X-1 floor and the building X+1
Layer.In this way, which the single-pass road antenna of each floor can also be adjacent bed other than it can be the terminal device service of this layer
Terminal device provides server.It should be noted that since signal has penetrability, the letter of the single-pass road antenna of this layer
Number in addition to that can penetrate up and down other than two adjacent layers, it can also continue to upwardly penetrate through or penetrate downwards, but penetrated based on signal
Decaying caused by floor, for the terminal device of this layer, signal that the single-pass road antenna of this layer of primary recipient is sent and
The single-pass road antenna of adjacent two layers penetrates signal, and penetrating by multilayer for other floors reaches the signal of this layer and can ignore
Disregard.For example, terminal device is currently located at 5 buildings, then the signal that 5 building, terminal device primary recipient single-pass road antennas are sent,
And the signal of 4 buildings and/or 6 buildings single-pass road antennas is penetrated into 5 buildings signals, and other floors, such as 7 buildings, 8 buildings floors
The signal that single-pass road antenna is sent can be ignored by penetrating 5 building, arrival signals.
In above-described embodiment, the single-pass road antenna of each floor of building is arranged on same vertical line.In this way,
It can be convenient and arrange net.
In above-described embodiment, in order to realize binary channels indoor distributed system, need for be arranged in two channels of binary channels RRU
For the same cell, that is to say, that the first port and the second port of binary channels RRU corresponds to same cellular cell,
The binary channels RRU is transmitted by the terminal device in the first port and the second port and the building simultaneously to be believed
Number.In this way, which first port and second port and binary channels can be passed through for the terminal device for being located at any floor
RRU transmits signal.During transmitting signal, terminal device is connect except through the single-pass road antenna of this layer with binary channels RRU
Feeder line, to RRU send signal or receive RRU send signal, also using adjacent bed single-pass road antenna to RRU send signal or
Receive the signal that RRU is sent.
In the following, the signal that is sent with the single-pass road antenna how an example receives this layer to terminal device and receiving adjacent
The signal that penetrates of the single-pass road antenna of layer is specifically illustrated.
Illustratively, indoor distributed system based on the embodiment of the present invention, free space loss can be according to free skies
Between loss formula be calculated.Wherein, free space loss formula are as follows: space loss L=20lg (F)+20lg (D)+32.4, it should
In formula, F be binary channels RRU tranmitting frequency, unit MHz, the present invention in F value be, for example, 1850MHz, D is single channel
Antenna to terminal device distance, unit be km (Km), buildings in general, if the every layer height of Business Building building be 4 meters, then this
Free space loss L=20lg (1850)+20lg (0.04)+32.4=49.78dB of layer, the signal of adjacent bed is by penetrating arrival
This layer of space loss is 20 (1850)+20lg (0.08)+32.4=55.81dB.
For terminal device, can computing terminal equipment receives according to the following formula this layer single-pass road antenna hair
The signal strength of the signal sent: Pr1=Pt+Gt-L1+Gr1, wherein Pr1 indicates that terminal device receives the single channel day of this layer
The signal strength for the signal that line is sent, Pt indicate the transmission power of binary channels RRU, and about -18dBm, Gt indicate the single-pass of this layer
The antenna gain of road antenna, about 2dBi, L1 indicate the free space loss of the signal of the single-pass road antenna transmitting of this layer, Gr table
Show the receiving antenna gain of terminal device.In the case where not considering receiving antenna gain, according to above-mentioned formula: terminal is set
The signal strength for the signal that the single-pass road antenna of standby this layer received is sent: -18+2-49.78+0=-65.78dBm.
It, can computing terminal equipment receives according to the following formula the letter for penetrating signal in addition, for terminal device
Number intensity penetrates the signal that the single-pass road antenna that signal is adjacent bed is sent and reaches this layer by penetrating, by the terminal device of this layer
Received signal.Penetrate the signal strength of signal: Pr2=Pt+Gt-L2+Gr1-Ct, wherein Pr2 indicates to penetrate the signal of signal
Intensity, Pt indicate the transmission power of binary channels RRU, and about -18dBm, Gt indicate the antenna gain of the single-pass road antenna of this layer, about
The free space loss of the signal of the single-pass road antenna transmitting of adjacent bed is indicated for 2dBi, L2, Gr indicates the reception day of terminal device
Line gain, Ct indicate penetration loss.In the case where not considering receiving antenna gain, according to above-mentioned formula: terminal device
The signal strength of the number of penetrating received: -18+2-55.81+0-15=-86.81dBm.
Next, the indoor distributed system described in a case verification embodiment of the present invention.In this example, building packet
2 layers of basement, on the ground 21 layers are included, 40000 square metres of overall floorage, 1~4 layer is two sides building common portion, and 5~21 layers are
Building two are high-rise, and a height of 4 meters of average layer or so.The building is storage building, is arranged net as single channel indoor distributed system, i.e., every layer
A single-pass road antenna is arranged in (the same horizontal position), which is connect by feeder line with single channel RRU.The present invention is real
It applies in example, which is transformed, increase a feeder line, so that each single-pass in first kind floor
Road antenna is connect by the first feeder line with the first port of binary channels RRU, and each single-pass road antenna in the second class floor passes through
Second feeder line is connect with the second port of binary channels RRU.In this way, adjacent layer forms parallel double trunk compartment systems, i.e., it is double
Access room compartment system, the single-pass road antenna distribution of adjacent layer are connected to the first port and second port of binary channels RRU.
For the building, such as the indoor distribution system realized using the 1T1R information source in traditional scheme, i.e. single channel RRU
System, needs 4 information sources, i.e. 4 RRU, has RRU and 3 RRU of the 1T1R without capacity of capacity including 1 1T1R, can use S1+
C111 is indicated.In the present embodiment, using the binary channels RRU of two 2T2R, distribution covers two building buildings of the building.This two
The binary channels RRU of 2T2R includes RRU and 1 RRU of the 2T2R without capacity that 1 2T2R has capacity.It illustratively can be found in table 1.
Table 1
According to table 1: indoor distributed system provided in an embodiment of the present invention is realized relative to the RRU using 1T1R
Indoor distributed system, information source number reduce 2, reduce information source investment cost 3.205 ten thousand, and information source expense reduces ratio and is
58.23%.That is, reducing the number of signal sources and information source investment of half or so in the embodiment of the present invention, greatly reducing
Cost.
Continue to continue to use above example, it is assumed that two building buildings of the building are respectively that the building A and the building B are covered by taking the building A as an example
The channel 0 for covering the binary channels RRU in the building A covers B2,1F, 3F, 5F ... 21F, and the channel 1 for covering the binary channels RRU in the building A covers
B1,2F, 4F ... 20F, it is the double hair modes of double receipts that cell, which sends and receives mode,.It finds after tested:
(1) signal penetrativity:
Single channel floor average reference signal receives power (reference signal received power, RSRP)
About -76dBm, average signal and interference plus noise ratio (signal to interference noise ratio, SINR) are
26db.After closing the channel signal of this layer, what the terminal device of this layer received penetrates the average RSRP about -90dBm of signal,
Average SINR is about 13.1dB, and penetration loss is about 15dB.After the channel signal for closing this layer, the terminal device of this layer is received
To the signal that penetrates can satisfy business demand substantially.Wherein, the channel signal for closing this layer can be understood as closing binary channels
Some port of RRU, for example, close first port, then what terminal device in first kind floor received adjacent bed penetrates signal；Again
Such as, second port is closed, then what terminal device in the second class floor received adjacent bed penetrates signal.
(2) downloading rate situation
The case where first port and second port of binary channels RRU are switched on (the also referred to as pseudo- double-current situation of this kind of situation,
Binary channels situation) under, downloading peak rate is about 132Mbps, and average download rate is about 97Mbps, and average uploading rate is about
42Mbps；The case where only opening a port (this kind of situation is also referred to as single channel situation), downloading peak rate are about
73Mbps, average download rate are about 64Mbps, and average uploading rate is about 44Mbps.It can thus be appreciated that: in the embodiment of the present invention
The binary channels indoor distributed system of offer promotes 33Mbps relative to single channel indoor distributed system, average download rate, is promoted
51.5 percentage points, it is obvious to promote effect.Illustratively, reference can be made to Fig. 2, Fig. 2 are a kind of rooms provided in an embodiment of the present invention
The rate comparison figure of interior compartment system.
Referring to figure 2., it opens, be simply turned off pseudo-channel, only in two channels that (a), (b), (c) are binary channels RRU respectively
The rate schematic diagram for closing main channel is simply turned off pseudo-channel and refers to the single-pass closed in binary channels RRU with adjacent bed for this layer
The channel of road antenna connection is simply turned off main channel and refers to the channel closed and connect in binary channels RRU with the single-pass road antenna of this layer.By
Known to Fig. 2: the indoor distributed system realized in the embodiment of the present invention using staggered floor covering is realized using the binary channels RRU of 2T2R
Binary channels indoor distribution, i.e. realization MIMO effect, average download rate are improved than traditional single channel indoor distributed system
51.5 percentage points, meanwhile, compared to the indoor distributed system that the RRU using 1T1R is realized, in the embodiment of the present invention, only with
The number of signal sources and the information source investment of general left and right, greatly reduce cost.
In the embodiment of the present invention, in order to realize binary channels indoor distributed system, need to set in two channels of binary channels RRU
It is set to the same cell, that is to say, that it is small that the first port and the second port of binary channels RRU corresponds to same honeycomb
Area, at this point, for be located at a specific floor terminal device for, the signal of the single-pass road antenna of received layer with
Adjacent bed penetrates signal and can mutually enhance.However, the first port and the second end of binary channels RRU can sometimes occur
Mouthful corresponding different cellular cell, the binary channels RRU by either port in the first port and the second port and
Terminal device in the building transmits signal.When the corresponding different bee in two channels (i.e. two ports) of binary channels RRU
When nest cell, for terminal device, generally selects the big cell of signal strength and be resident, it is therefore, received
Signal is the biggish signal of signal strength.
In the following, based on above-mentioned binary channels indoor distributed system, the method for transmitting signals described in the embodiment of the present invention into
Row is described in detail.Illustratively, reference can be made to Fig. 3.
Fig. 3 is a kind of flow chart of method for transmitting signals provided in an embodiment of the present invention, and the present embodiment is from binary channels RRU
Angle method for transmitting signals provided in an embodiment of the present invention is described in detail.The present embodiment includes:
101, binary channels RRU determines terminal device.
In this step, binary channels RRU determines the terminal device for needing to communicate.For example, binary channels RRU is as sending ending equipment
When, it is thus necessary to determine which terminal device receiving device is specifically；For another example, it when binary channels RRU is as receiving device, needs really
It is fixed to receive signal from terminal device.
102, the binary channels RRU use multiple-input and multiple-output mode, by the corresponding single-pass road antenna of the floor and/
Or the corresponding single-pass road antenna of floor that the floor is adjacent, signal is transmitted with the terminal device.
In this step, binary channels RRU determines terminal device, and then uses MIMO method, passes through the single channel of each floor
Antenna and terminal device transmit signal.For example, two channels of binary channels RRU open and the first port of binary channels RRU and
When second port corresponds to the same cellular cell, terminal device is connect except through the single-pass road antenna of this layer with binary channels RRU
Feeder line, to RRU send signal or receive RRU send signal, also using adjacent bed single-pass road antenna to RRU send signal or
Receive the signal that RRU is sent.For another example, when the pseudo-channel of binary channels RRU is closed, terminal device by the single-pass road antenna of this layer with
Binary channels RRU transmits signal；For another example, when the main channel of binary channels RRU is closed, terminal device by the single-pass road antenna of adjacent bed with
RRU transmits signal.
Method for transmitting signals provided in an embodiment of the present invention, after binary channels RRU determines terminal device, using the side MIMO
Formula, by the adjacent single-pass road antenna of the corresponding single-pass road antenna of floor where terminal device and/or floor, with terminal device
Transmit signal.During being somebody's turn to do, the feeder line that terminal device connect except through the single-pass road antenna of this layer with binary channels RRU, to RRU
It sends signal or receives the signal that RRU is sent, also utilize the single-pass road antenna of adjacent bed to send signal to RRU or receive RRU and send
Signal, using single-pass road antenna double-channel signal transmit purpose, meet the MIMO mechanism of LTE.
It is described when the first port and second port of the binary channels RRU correspond to same cellular cell in above-described embodiment
The corresponding single-pass road antenna of floor binary channels RRU adjacent by the corresponding single-pass road antenna of the floor and the floor, with
The terminal device transmits signal.Specifically, reference can be made to the description of above-mentioned indoor distributed system, details are not described herein again.
In above-described embodiment, the first port and the second port of the binary channels RRU corresponds to different honeycombs
Cell, the corresponding single-pass of the floor binary channels RRU adjacent by the corresponding single-pass road antenna of the floor or the floor
Road antenna transmits signal with the terminal device.Specifically, reference can be made to the description of above-mentioned indoor distributed system, no longer superfluous herein
It states.
Fig. 4 is a kind of structural schematic diagram of signal transmitting apparatus provided in an embodiment of the present invention, the signal transmitting apparatus 100
May include:
Processing module 11, for determining terminal device；
Transceiver module 12, it is corresponding by the floor where the terminal device for using multiple-input and multiple-output mode
Single-pass road antenna and/or the adjacent corresponding single-pass road antenna of floor of the floor transmit signal with the terminal device.
Signal transmitting apparatus provided in an embodiment of the present invention, communication device provided by the embodiments of the present application can execute
The movement of binary channels RRU in embodiment is stated, it is similar that the realization principle and technical effect are similar, and details are not described herein.
In a kind of feasible design, the first port and second port of the binary channels RRU corresponds to same cellular cell；Institute
Transceiver module 12 is stated, for the floor corresponding single channel adjacent by the corresponding single-pass road antenna of the floor and the floor
Antenna transmits signal with the terminal device.
In a kind of feasible design, the first port and the second port of the binary channels RRU corresponds to different
Cellular cell；The transceiver module 12, for the floor adjacent by the corresponding single-pass road antenna of the floor or the floor
Corresponding single-pass road antenna transmits signal with the terminal device.
Fig. 5 is a kind of structural schematic diagram of binary channels RRU provided in an embodiment of the present invention.As shown in figure 5, the binary channels
RRU200 includes:
At least one processor 21 and memory 22；
The memory 22 stores computer executed instructions；
At least one described processor 21 executes the computer executed instructions that the memory 22 stores so that it is described at least
One processor 21 executes method for transmitting signals as described above.
The specific implementation process of processor 21 can be found in above method embodiment, and it is similar that the realization principle and technical effect are similar,
Details are not described herein again for the present embodiment.
Optionally, binary channels RRU200 further includes communication component 23.Wherein, processor 21, memory 22 and communication
Component 23 can be connected by bus 24.
The embodiment of the present invention also provides a kind of storage medium, and computer executed instructions, institute are stored in the storage medium
It states when computer executed instructions are executed by processor for realizing method for transmitting signals as described above.
The embodiment of the present invention also provides a kind of computer program product, when the computer program product is transported on computers
When row, so that computer executes such as above-mentioned method for transmitting signals.
In the above-described embodiment, it should be understood that described device and method, it can be real by another way
It is existing.For example, apparatus embodiments described above are merely indicative, for example, the division of the module, only one kind are patrolled
Function division is collected, there may be another division manner in actual implementation, such as multiple modules may be combined or can be integrated into
Another system, or some features can be ignored or not executed.Another point, shown or discussed mutual coupling or
Direct-coupling or communication connection can be through some interfaces, and the indirect coupling or communication connection of device or module can be electricity
Property, mechanical or other forms.
The module as illustrated by the separation member may or may not be physically separated, aobvious as module
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.Some or all of the modules therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
It, can also be in addition, each functional module in each embodiment of the present invention can integrate in one processing unit
It is that modules physically exist alone, can also be integrated in one unit with two or more modules.Above-mentioned module at
Unit both can take the form of hardware realization, can also realize in the form of hardware adds SFU software functional unit.
The above-mentioned integrated module realized in the form of software function module, can store and computer-readable deposit at one
In storage media.Above-mentioned software function module is stored in a storage medium, including some instructions are used so that a binary channels
RRU (can be personal computer, server or the network equipment etc.) or processor (English: processor) execute the present invention
The part steps of each embodiment the method.
It should be understood that above-mentioned processor can be central processing unit (central processing unit, CPU), may be used also
To be other general processors, digital signal processor (digital signal processor, DSP), specific integrated circuit
(application specific integrated circuit, ASIC) etc..General processor can be microprocessor or
The processor is also possible to any conventional processor etc..It can be embodied directly in conjunction with the step of invention disclosed method hard
Part processor executes completion, or in processor hardware and software module combination execute completion.
Memory may include high speed RAM memory, it is also possible to and it further include non-volatile memories NVM, for example, at least one
Magnetic disk storage can also be USB flash disk, mobile hard disk, read-only memory, disk or CD etc..
Bus can be industry standard architecture (industry standard architecture, ISA) bus, outer
Portion's apparatus interconnection (peripheral component, PCI) bus or extended industry-standard architecture (extended
Industry standard architecture, EISA) bus etc..Bus can be divided into address bus, data/address bus, control
Bus etc..For convenient for indicating, the bus in attached drawing of the present invention does not limit only a bus or a type of bus.
Above-mentioned storage medium can be by any kind of volatibility or non-volatile memory device or their combination
It realizes, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable
Read-only memory (EPROM), programmable read only memory (PROM), read-only memory (ROM), magnetic memory, flash memory,
Disk or CD.Storage medium can be any usable medium that general or specialized computer can access.
A kind of illustrative storage medium is coupled to processor, believes to enable a processor to read from the storage medium
Breath, and information can be written to the storage medium.Certainly, storage medium is also possible to the component part of processor.It processor and deposits
Storage media can be located in specific integrated circuit (application specific integrated circuits, ASIC).
Certainly, pocessor and storage media can also be used as discrete assembly and be present in terminal or server.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above-mentioned each method embodiment can lead to
The relevant hardware of program instruction is crossed to complete.Program above-mentioned can be stored in a computer readable storage medium.The journey
When being executed, execution includes the steps that above-mentioned each method embodiment to sequence；And storage medium above-mentioned include: ROM, RAM, magnetic disk or
The various media that can store program code such as person's CD.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of indoor distributed system characterized by comprising binary channels radio frequency remote unit RRU and be distributed in building
The single-pass road antenna of each floor, wherein
Each single-pass road antenna passes through in the first port of the binary channels RRU and the first kind floor for being distributed in the building
The connection of first feeder line, the second port of the binary channels RRU and each list being distributed in the second class floor of the building
Channel antenna is connected by the second feeder line, and the first kind floor is the floor that floor number is odd number, the second class floor
It is the floor of even number for floor number.
2. system according to claim 1, which is characterized in that
X single-pass road antenna is the single-pass road antenna in X floor, and the X floor is any one building of the building
Layer, the X single channel antenna coverage areas includes: the X floor, X-1 floor and X+1 floor.
3. system according to claim 1, which is characterized in that the first port of the binary channels RRU and described
Two-port netwerk corresponds to same cellular cell, the binary channels RRU simultaneously by the first port and the second port with it is described
Terminal device in building transmits signal.
4. system according to claim 1, which is characterized in that the first port of the binary channels RRU and described
Two-port netwerk corresponds to different cellular cells, and the binary channels RRU passes through either end in the first port and the second port
Mouth transmits signal with the terminal device in the building.
5. system according to any one of claims 1 to 4, which is characterized in that
The single-pass road antenna of each floor of the building is arranged on same vertical line.
6. a kind of method for transmitting signals characterized by comprising
Binary channels RRU determines terminal device；
The binary channels RRU uses multiple-input and multiple-output mode, passes through the corresponding single channel of floor where the terminal device
Antenna and/or the adjacent corresponding single-pass road antenna of floor of the floor transmit signal with the terminal device.
7. according to the method described in claim 6, it is characterized in that, the first port and second port pair of the binary channels RRU
Answer same cellular cell；
The binary channels RRU transmits signal by the corresponding single-pass road antenna of the floor, with the terminal device, comprising:
The corresponding single channel of the floor binary channels RRU adjacent by the corresponding single-pass road antenna of the floor and the floor
Antenna transmits signal with the terminal device.
8. according to the method described in claim 6, it is characterized in that, the first port and second port pair of the binary channels RRU
Answer different cellular cells；
The binary channels RRU transmits signal by the corresponding single-pass road antenna of the floor, with the terminal device, comprising:
The corresponding single channel of the floor binary channels RRU adjacent by the corresponding single-pass road antenna of the floor or the floor
Antenna transmits signal with the terminal device.
9. a kind of signal transmitting apparatus characterized by comprising
Processing module, for determining terminal device；
Transceiver module, for the floor corresponding single channel adjacent by the corresponding single-pass road antenna of floor and/or the floor
Antenna transmits signal with the terminal device.
10. a kind of binary channels Remote Radio Unit, which is characterized in that including processor, memory and be stored in the memory
Computer program that is upper and can running on a processor, which is characterized in that the processor is realized as above when executing described program
State the described in any item methods of claim 6-8.
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| CN201811603813.4A CN109672989A (en) | 2018-12-26 | 2018-12-26 | Indoor distributed system |
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Cited By (1)
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| CN113382415A (en) * | 2021-05-28 | 2021-09-10 | 中通服咨询设计研究院有限公司 | Scene-based 5G indoor passive distribution system self-adaption method |
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