CN109104232A - A kind of wireless relay apparatus and wireless communication system - Google Patents
A kind of wireless relay apparatus and wireless communication system Download PDFInfo
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- CN109104232A CN109104232A CN201811114787.9A CN201811114787A CN109104232A CN 109104232 A CN109104232 A CN 109104232A CN 201811114787 A CN201811114787 A CN 201811114787A CN 109104232 A CN109104232 A CN 109104232A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
- H04B7/15564—Relay station antennae loop interference reduction
- H04B7/15585—Relay station antennae loop interference reduction by interference cancellation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
- H04B7/15528—Control of operation parameters of a relay station to exploit the physical medium
- H04B7/15542—Selecting at relay station its transmit and receive resources
Abstract
The embodiment of the present invention provides a kind of wireless relay apparatus and wireless communication system, is related to wireless relay apparatus field, only can carry out relaying amplification to the wireless signal of fixed PLMN.The equipment includes: access antenna, covering antenna and wireless relay module；Access antenna is used to receive the downstream wireless signals of base station and is sent to wireless relay module, while the up-link wireless signal sent after wireless relay resume module is sent to base station；Antenna is covered, for receiving the up-link wireless signal of terminal sending and being sent to wireless relay module, while the downstream wireless signals sent after wireless relay resume module are sent to terminal；Wireless relay module, in the uplink and downlink wireless signal for will receive with after the target uplink and downlink wireless signal enhanced processing of PLMN categorical match belonging to wireless relay apparatus, be sent to access antenna and covering antenna.
Description
Technical field
The present invention relates to wireless relay apparatus field more particularly to a kind of wireless relay apparatus and wireless communication systems.
Background technique
In modern society, with the development of mobile communication technology, increased mobile communication subscriber at full speed is to mobile radio communication
Network capacity brings larger challenge.On the other hand, it is limited by the constraint of the environmental issues such as base station radiation, so that mobile communication base station
Construction it is more and more difficult, by base station equipment carry out mobile communications network seamless coverage become more and more difficult.It carries on the back herein
Under scape, the wireless relay apparatus such as company of handset become one of the technical way to solve the above problems.Wireless relay apparatus is put
It is placed in base station covering fringe region, is capable of the coverage area of extended base station.Current wireless relay apparatus is divided into simulation wirelessly
After with digitlization two kinds of wireless relay.
But whether be simulation wireless relay apparatus or general digitlization trunking, it is substantially by separating
What device or block combiner were realized, isolated device can only realize a certain specific function, such as LNA (Low Noise
Amplifier it) realizes low noise amplification, plays the purpose for reducing link noise.Although the link reality that multiple combination of devices are got up
The basic function of signal amplification relaying is showed, but there is also some problems in specifically used: BPF (band- used in link
Pass filter, bandpass filter) it is substantially using medium or SAW filter, Out-of-band rejection poor ability, substantially all
It is in order to realize that remote signaling inhibits (such as the inhibition of GSM900M frequency range to WCDMA frequency range), for the same BAND between operator
Signal rejection ability is very poor, this allows for the wireless relay apparatus between different operators in addition to the frequency signal amplification to itself,
The adjacent frequency signal of other operators is also simultaneously amplified.And the network optimization is only done to the wireless signal of itself by operator, to produce
Many multi-path jammings, intermodulation distortion have been given birth to, service feature and user experience are seriously affected.
Summary of the invention
The embodiment of the present invention provides a kind of wireless relay apparatus and wireless communication system, can be itself only for PLMN
The uplink and downlink wireless signal of the PLMN of operator amplifies processing, maximizes to the adjacent frequency signal of other operators
Interference filtering.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that
In a first aspect, providing a kind of wireless relay apparatus, comprising: access antenna, wireless relay module and covering antenna；
Antenna is accessed, for receiving the downstream wireless signals of first base station transmission and being sent to downstream wireless signals wirelessly
Trunk module, access antenna present position are located in the coverage area of first base station；
Antenna is covered, for receiving the up-link wireless signal of second terminal sending and being sent to up-link wireless signal wirelessly
Trunk module, second terminal present position are positioned in the coverage area of antenna；
Wireless relay module, for will access antenna transmission downstream wireless signals in public affairs belonging to wireless relay apparatus
The target downlink wireless signal of land mobile network PLMN categorical match altogether, is sent to covering antenna；
Wireless relay module is also used to cover in the up-link wireless signal of antenna transmission and belonging to wireless relay apparatus
The target up-link wireless signal of PLMN categorical match, is sent to access antenna；
Covering antenna is also used to for the target downlink wireless signal that wireless relay module is sent being sent to and downlink wireless communication
Number corresponding first terminal；
Access antenna be also used to for the target up-link wireless signal that wireless relay module is sent being sent to target uplink without
Corresponding second base station of line signal.
Optionally, wireless relay module includes baseband processing unit, baseband processing unit include: protocol analysis subelement,
Control management subelement and digital filtering subunit；
Protocol analysis subelement, for access antenna send downstream wireless signals parse, with obtain downlink without
The PLMN classification of line signal；
The downlink wireless communication that control management subelement is used to be obtained according to the PLMN classification and protocol analysis subelement that prestore
Number PLMN classification, determine target downlink wireless signal in downstream wireless signals and the covering received up-link wireless signal of antenna
In target up-link wireless signal；The PLMN classification prestored is the PLMN classification of wireless relay apparatus operator；
Digital filtering subelement, it is wireless for the target downlink that control management subelement determines will to be removed in downstream wireless signals
Downstream wireless signals other than signal filter out, and target downlink wireless signal is sent to covering antenna；
Digital filtering subelement is also used to cover in the up-link wireless signal of antenna transmission except control management subelement is true
Up-link wireless target signal filter other than fixed target up-link wireless signal, and target up-link wireless signal is sent to access day
Line.
Optionally, protocol analysis subelement is also used to parse the downstream wireless signals that access antenna is sent, to obtain
Take the signal strength and signal quality of downstream wireless signals；
The downlink that control management subelement is also used to be obtained according to the PLMN classification and protocol analysis unit that prestore is wireless
The target component of signal configures the uplink filtering parameter and downstream filtering parameter of digital filter unit；
Target component includes: PLMN classification, signal strength and signal quality.
Optionally, wireless relay module further include: outdoor radio-frequency front-end and indoor radio frequency front end；
The first end connection access antenna of outdoor radio-frequency front-end, the second end of outdoor radio-frequency front-end connect baseband processing unit
First end, for will access antenna send downstream wireless signals be sent to baseband processing unit；
Outdoor radio-frequency front-end is also used to the target uplink signal that baseband processing unit is sent being sent to access antenna；
Outdoor radio-frequency front-end be also used to baseband processing unit and access antenna between up channel and down channel into
Row processing, so as to only exist a communication channel between outdoor radio-frequency front-end and access antenna；
The first end connection covering antenna of indoor radio frequency front end, the second end of indoor radio frequency front end connect baseband processing unit
Second end, for will cover antenna send up-link wireless signal be sent to baseband processing unit；
Indoor radio frequency front end is also used to the target downlink signal that baseband processing unit is sent being sent to covering antenna；
Indoor radio frequency front end be also used to baseband processing unit and covering antenna between up channel and down channel into
Row processing, so as to only exist a communication channel between indoor radio frequency front end and covering antenna.
Optionally, outdoor transmitting-receiving is additionally provided between the second end of outdoor radio-frequency front-end and the first end of baseband processing unit
Believe unit, indoor transceiver unit is additionally provided between indoor radio frequency front end and the second end of baseband processing unit；
Outdoor transceiver unit, the downstream wireless signals for sending outdoor radio-frequency front-end successively carry out low noise and put
Greatly, baseband processing unit is sent to after automatic growth control and analog to digital conversion；
Outdoor transceiver unit is also used to the target uplink signal that baseband processing unit is sent successively carrying out digital-to-analogue change
It changes, be sent to outdoor radio-frequency front-end after auto level control and power amplification；
Indoor transceiver unit, the up-link wireless signal for sending indoor radio frequency front end successively carry out low noise and put
Greatly, baseband processing unit is sent to after automatic growth control and analog to digital conversion；
Indoor transceiver unit be also used to by baseband processing unit send target downlink signal successively carry out digital to analog conversion,
Indoor radio frequency front end is sent to after auto level control and power amplification.
Optionally, when wireless relay apparatus is TDD system, outdoor radio-frequency front-end and indoor radio frequency front end are equal
For switch；
Outdoor radio-frequency front-end be used for baseband processing unit and access antenna between up channel and down channel according to
Default timing switches over, and indoor radio frequency front end is used for the up channel and downlink between baseband processing unit and covering antenna
Channel is switched over according to default timing.
Optionally, when wireless relay apparatus is FDD system, outdoor radio-frequency front-end and indoor radio frequency front end are equal
For duplexer；
Outdoor radio-frequency front-end is used for the up channel and down channel between baseband processing unit and outdoor radio-frequency front-end
It is combined, so that there is only a communication channels between outdoor radio-frequency front-end and covering antenna；
The communication channel that indoor radio frequency front end is also used to cover between antenna and indoor radio frequency front end separates, so that
Communication channel between indoor radio frequency front end and baseband processing unit includes up channel and down channel.
Second aspect provides a kind of wireless communication system, the wireless relay apparatus provided including such as first aspect.
Wireless relay apparatus provided in an embodiment of the present invention and wireless communication system, the wireless relay apparatus include: access
Antenna, wireless relay module and covering antenna；Access antenna, for receive first base station transmission downstream wireless signals and will under
Row wireless signal is sent to wireless relay module, and access antenna present position is located in the coverage area of first base station；Cover day
Line, for receiving the up-link wireless signal of second terminal sending and up-link wireless signal being sent to wireless relay module, second
Terminal present position is positioned in the coverage area of antenna；Wireless relay module, for will access antenna transmission downlink without
With the target downlink wireless signal of public land mobile network PLMN categorical match belonging to wireless relay apparatus in line signal, send out
Give covering antenna；Wireless relay module is also used to cover in the up-link wireless signal of antenna transmission and wireless relay apparatus institute
The target up-link wireless signal of the PLMN categorical match of category, is sent to access antenna；Covering antenna is also used to wireless relay mould
The target downlink wireless signal that block is sent is sent to first terminal corresponding with downstream wireless signals；Access antenna is also used to nothing
The target up-link wireless signal that line trunk module is sent is sent to the second base station corresponding with target up-link wireless signal.Because this
In the technical solution that inventive embodiments provide, wireless relay module present in wireless relay apparatus can be only received by itself
Being sent to the uplink and downlink wireless signal of the PLMN categorical match of the operator described in itself in all uplink and downlink wireless signals
Antenna or covering antenna are accessed, so that wireless relay apparatus only carries out the wireless signal of the operator belonging to itself
Forward process, avoid occur in existing wireless relay apparatus adjacent frequency interference, intermodulation distortion the defects of, improve user's body
It tests.
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 only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram for the simulation wireless relay apparatus that the prior art provides；
Fig. 2 is the structural schematic diagram for the digital radio trunking that the prior art provides；
Fig. 3 is a kind of structural schematic diagram of wireless relay apparatus provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of another wireless relay apparatus provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of another wireless relay apparatus provided in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of another wireless relay apparatus provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It should be noted that in the embodiment of the present invention, " illustrative " or " such as " etc. words make example, example for indicating
Card or explanation.Be described as in the embodiment of the present invention " illustrative " or " such as " any embodiment or design scheme do not answer
It is interpreted than other embodiments or design scheme more preferably or more advantage.Specifically, " illustrative " or " example are used
Such as " word is intended to that related notion is presented in specific ways.
It should also be noted that, in the embodiment of the present invention, " (English: of) ", " corresponding (English:
Corresponding, relevant) " it sometimes can be mixed with " corresponding (English: corresponding) ", it should be pointed out that
It is that, when not emphasizing its difference, meaning to be expressed is consistent.
For the ease of clearly describing the technical solution of the embodiment of the present invention, in an embodiment of the present invention, use " the
One ", the printed words such as " second " distinguish function and the essentially identical identical entry of effect or similar item, and those skilled in the art can
To understand that the printed words such as " first ", " second " are not to be defined to quantity and execution order.
Existing wireless relay apparatus is divided into simulation wireless relay apparatus and digital two kinds of wireless relay apparatus, referring to Fig.1
Shown, simulating includes two sets of radio frequency links in wireless relay apparatus, and a set of is downlink, and a set of is uplink；Downlink chain
Road receives the wireless signal of Base Transmitter by access antenna, is sent to terminal by covering antenna after amplification filtering；On
Line link receives the wireless signal of terminal transmission by covering antenna, is sent to base by accessing antenna after amplification filtering
It stands；Specific link includes module or device are as follows: (SW (switch) is used for TDD (Time for access antenna, covering antenna, switch
Division Duplexing, time division duplex) system) or duplexer (DUP (duplexer), for FDD (Frequency
Division Duplexing, frequency division duplex) system), low noise (LNA, Low Noise Amplifier), bandpass filter
(BPF, band-pass filter), voltage control Amplifier (VGA, Voltage controlled Gain square
Amplifier, or the combination of gain module and attenuator), automatic level controller part (ALC, Automatic
Level Control), power amplifier module (PA, power amplifier).
Referring to shown in Fig. 2, digital radio trunking equally includes two sets of radio frequency links, and a set of is downlink, a set of
For uplink；Downlink receives the wireless signal of Base Transmitter by access antenna, passes through covering after amplification filtering
Antenna is sent to terminal；Uplink receives the wireless signal of terminal transmission by covering antenna, passes through after amplification filtering
Access antenna is sent to base station.Specific link includes module or device are as follows: (SW is used for TDD for access antenna, covering antenna, switch
System) or duplexer (DUP is used for FDD system), low noise (LNA), bandpass filter (BPF), voltage control Amplifier
(VGA, or the combination of gain module and attenuator), frequency mixer (Mixer), analog-digital converter (ADC, Analog-to-
Digital Converter), programmable logic device (FPGA, Field Programmable Gate Array), digital-to-analogue turn
Parallel operation (DAC, Digital to analog converter), local oscillator device (LO, local oscillator), automatic electric-level
Control device (ALC), power amplifier module (PA).
Existing wireless relay apparatus is all by isolated device it can be seen from above content and the content of Fig. 1 and Fig. 2
What part or block combiner were realized, although the basic function of signal amplification relaying may be implemented in the link that multiple combination of devices are formed,
But because BPF (Band-Pass Filter, bandpass filter) used in link is substantially using medium or the filter of sound table
Wave device, Out-of-band rejection poor ability, be substantially in order to realize remote signaling inhibit (such as GSM900M frequency range to WCDMA frequency
The inhibition of section), very poor for the same BAND signal rejection ability between operator, this allows for the wireless relay between different operators
Equipment has also simultaneously amplified the adjacent frequency signal of other operators in addition to the frequency signal amplification to itself, and operator is only to certainly
The wireless signal of body does the network optimization, to produce many adjacent frequency interference, intermodulation distortion, seriously affect service feature and
User experience.
In view of the above-mentioned problems, the embodiment of the present invention provides a kind of wireless relay apparatus referring to shown in Fig. 3, comprising: access day
Line 31, wireless relay module 32 and covering antenna 33；
Antenna 31 is accessed, for receiving the downstream wireless signals of first base station transmission and downstream wireless signals being sent to nothing
Line trunk module 32, access 31 present position of antenna are located in the coverage area of first base station；Illustratively, any operator
As long as there are the wireless relay apparatus in its coverage area of base station, which is exactly first base station；
Antenna 33 is covered, for receiving the up-link wireless signal of second terminal sending and up-link wireless signal being sent to nothing
Line trunk module 32, second terminal present position are positioned in the coverage area of antenna 33；
Wireless relay module 32, for that will access in the downstream wireless signals that antenna 31 is sent and belonging to wireless relay apparatus
Public land mobile network PLMN categorical match target downlink wireless signal, be sent to covering antenna 33；
Wireless relay module 32 is also used to cover in the up-link wireless signal that antenna 33 is sent and wireless relay apparatus institute
The target up-link wireless signal of the PLMN categorical match of category is sent to access antenna 31；
Covering antenna 33 be also used to for the target downlink wireless signal that wireless relay module 32 is sent being sent to downlink without
The corresponding first terminal of line signal；
Access antenna 31 be also used to for the target up-link wireless signal that wireless relay module 32 is sent being sent to in target
Corresponding second base station of row wireless signal.
In technical solution provided by the above embodiment, because wireless relay module present in wireless relay apparatus can be only
By in itself received all uplink and downlink wireless signal with the uplink and downlink of the PLMN categorical match of the operator described in itself without
Line signal is sent to access antenna or covering antenna, so that wireless relay apparatus is only to the operator belonging to itself
The defects of wireless signal is forwarded processing, avoids the adjacent frequency interference occurred in existing wireless relay apparatus, intermodulation distortion,
The user experience is improved.
Optionally, referring to shown in Fig. 4, wireless relay module 32 includes baseband processing unit 321, baseband processing unit 321
It include: protocol analysis subelement 3211, control management subelement 3212 and digital filtering subunit 3213；
Protocol analysis subelement 3211, the downstream wireless signals for sending to access antenna 31 parse, to obtain
The PLMN classification of downstream wireless signals；Specifically, the function of protocol analysis subelement is usually to be present in modulation /demodulation in practice
In device MODEM, the present invention its partial function is arranged in baseband processing unit to complete PLMN parsing in wireless communication and know
Other technical purpose；
Under control management subelement 3212 is used to be obtained according to the PLMN classification and protocol analysis subelement 3211 that prestore
The PLMN classification of row wireless signal, determine target downlink wireless signal in downstream wireless signals and covering antenna 33 it is received on
Target up-link wireless signal in row wireless signal；The PLMN classification prestored is the PLMN class of wireless relay apparatus operator
Not；
Digital filtering subelement 3213, for the determining target of control management subelement 3212 will to be removed in downstream wireless signals
Downstream wireless signals other than downstream wireless signals filter out, and target downlink wireless signal is sent to covering antenna 33；
Digital filtering subelement 3213 is also used to cover in the up-link wireless signal that antenna 33 is sent except control management
Up-link wireless target signal filter other than the target up-link wireless signal that unit 3212 determines, and target up-link wireless signal is sent
Give access antenna 31.
It should be noted that when the PLMN classification for the downstream wireless signals that the base station of different operators is sent in practice not
Together, and each PLMN classification may be directed to multi-frequency downstream wireless signals, the downstream wireless signals of each frequency are then
PLMN is not had just for a kind of up-link wireless signal of frequency, and in the information of up-link wireless signal carrying, so this
The downlink signal that the protocol analysis subelement that inventive embodiments provide can only send base station parses, so that it is determined that each
The PLMN classification of the downstream wireless signals of frequency, needs can be determined according to the PLMN classification prestored by then managing subelement
Target downlink signal and its corresponding target uplink signal, what last digital filter can be determined according to management subelement
Information is filtered.
Because the position of wireless relay apparatus may change at any time, ambient enviroment may also generate variation, institute at any time
To access the received downstream wireless signals of antenna in practice and cover under target useful in the received up-link wireless signal of antenna
The accounting of row wireless signal and target up-link wireless signal may generate variation at any time, it is possible to which wireless relay apparatus receives
All wireless signals (up-link wireless signal and downstream wireless signals) in need Target Wireless signal (target up-link wireless letter
Number and target downlink wireless signal) be only in total wireless signal sub-fraction (such as target uplink signal account for uplink without
Sub-fraction or target downlink wireless signal account for sub-fraction in downstream wireless signals in line signal), then at this moment in order to enable
Wireless signal in addition to Target Wireless signal preferably can be carried out inhibiting to filter out by digital filtering unit, then needed according to each
The signal strength and signal quality of a wireless signal are arranged most suitable inhibition parameter and have obtained best inhibition filtration result, institute
With optional, referring to the downstream wireless signals that shown in Fig. 4, protocol analysis subelement 3211 is also used to send access antenna 31 into
Row parsing, to obtain the signal strength and signal quality of downstream wireless signals；
The downlink that control management subelement 3212 is also used to be obtained according to the PLMN classification and protocol analysis unit that prestore
The target component of wireless signal configures the uplink filtering parameter and downstream filtering parameter of digital filter unit；
Target component includes: PLMN classification, signal strength and signal quality.
Because being that there are the i.e. up channels and down channel that hardware constitutes two channels in actual wireless relay apparatus
(being referred to as upstream radio-frequency link and downlink radio frequency link), but because the physical interface of base station and terminal only one,
So one is only existed to base station and covering antenna to the communication channel terminal from antenna is accessed, so setting in wireless relay
Standby middle two combining channels needed to make there are device inside wireless relay apparatus be a channel (frequency division duplex system) or
Person's timing switches over (tdd systems) to two channels, thus it is further alternative, referring to Figure 5, wireless relay
Module 32 further include: outdoor radio-frequency front-end 322 and indoor radio frequency front end 323；
The first end connection access antenna 31 of outdoor radio-frequency front-end 322, the second end linker band of outdoor radio-frequency front-end 322
The first end of processing unit 321 is sent to baseband processing unit 321 for will access the downstream wireless signals that antenna 31 is sent；
Outdoor radio-frequency front-end 322 is also used to the target uplink signal that baseband processing unit 321 is sent being sent to access day
Line 31；
Outdoor radio-frequency front-end 322 is also used to the up channel between baseband processing unit 321 and access antenna 31 under
Row channel is handled, so as to only exist a communication channel between outdoor radio-frequency front-end 322 and access antenna 31；
The first end connection covering antenna 33 of indoor radio frequency front end 323, the second end linker band of indoor radio frequency front end 323
The second end of processing unit 321 is sent to baseband processing unit 321 for will cover the up-link wireless signal that antenna 33 is sent；
Indoor radio frequency front end 323 is also used to the target downlink signal that baseband processing unit 321 is sent being sent to covering day
Line 33；
Indoor radio frequency front end 323 is also used to the up channel between baseband processing unit 321 and covering antenna 33 under
Row channel is handled, so as to only exist a communication channel between indoor radio frequency front end 323 and covering antenna 33.
Illustratively, when wireless relay apparatus is TDD system, outdoor radio-frequency front-end 322 and indoor radio frequency
Front end 323 is switch；
Outdoor radio-frequency front-end 322 is used for the up channel and downlink between baseband processing unit 321 and access antenna 31
Channel is switched over according to default timing, and indoor radio frequency front end 323 is used between baseband processing unit 321 and covering antenna 33
Up channel and down channel switched over according to default timing.
Illustratively, when wireless relay apparatus is FDD system, outdoor radio-frequency front-end 322 and indoor radio frequency
Front end 323 is duplexer；
Outdoor radio-frequency front-end 322 be used for by between baseband processing unit 321 and outdoor radio-frequency front-end 322 up channel and
Down channel is combined, so that there is only a communication channels between outdoor radio-frequency front-end 322 and covering antenna 33；
Indoor radio frequency front end 323 is also used to cover a communication channel between antenna 33 and indoor radio frequency front end 323
Separation, so that the communication channel between indoor radio frequency front end 323 and baseband processing unit 321 includes up channel and downlink letter
Road.
Because wireless relay apparatus not only plays the role of signal behavior and forwarding, it is also necessary to be carried out to the signal of selection
Certain enhanced processing, thus it is further alternative, referring to shown in Fig. 6, the second end and Base-Band Processing of outdoor radio-frequency front-end 322
Outdoor transceiver unit 324, indoor radio frequency front end 323 and baseband processing unit 321 are additionally provided between the first end of unit 321
Second end between be additionally provided with indoor transceiver unit 325；
Outdoor transceiver unit 324, the downstream wireless signals for sending outdoor radio-frequency front-end 322 successively carry out low noise
Baseband processing unit 321 is sent to after sound amplification, automatic growth control and analog to digital conversion；
Outdoor transceiver unit 324 is also used to successively count the target uplink signal that baseband processing unit 321 is sent
Outdoor radio-frequency front-end 322 is sent to after modular transformation, auto level control and power amplification；
Specifically, outdoor transceiver unit can be multiple combination of devices with different function and form, each device can
To be device as shown in Figures 1 and 2, it is not particularly limited herein；
Indoor transceiver unit 325, the up-link wireless signal for sending indoor radio frequency front end 323 successively carry out low noise
Baseband processing unit 321 is sent to after sound amplification, automatic growth control and analog to digital conversion；
Indoor transceiver unit 325 is also used to successively count the target downlink signal that baseband processing unit 321 is sent
Indoor radio frequency front end 323 is sent to after modular transformation, auto level control and power amplification；Specifically, indoor transceiver unit
It can be multiple combination of devices with different function to form, each device is also possible to device as shown in Figures 1 and 2,
It is not particularly limited herein.
The embodiment of the present invention also provides a kind of wireless communication system, including above-mentioned wireless relay apparatus.
Wireless relay apparatus provided in an embodiment of the present invention and wireless communication system, the wireless relay apparatus include: access
Antenna, wireless relay module and covering antenna；Access antenna, for receive first base station transmission downstream wireless signals and will under
Row wireless signal is sent to wireless relay module, and access antenna present position is located in the coverage area of first base station；Cover day
Line, for receiving the up-link wireless signal of second terminal sending and up-link wireless signal being sent to wireless relay module, second
Terminal present position is positioned in the coverage area of antenna；Wireless relay module, for will access antenna transmission downlink without
With the target downlink wireless signal of public land mobile network PLMN categorical match belonging to wireless relay apparatus in line signal, send out
Give covering antenna；Wireless relay module is also used to cover in the up-link wireless signal of antenna transmission and wireless relay apparatus institute
The target up-link wireless signal of the PLMN categorical match of category, is sent to access antenna；Covering antenna is also used to wireless relay mould
The target downlink wireless signal that block is sent is sent to first terminal corresponding with downstream wireless signals；Access antenna is also used to nothing
The target up-link wireless signal that line trunk module is sent is sent to the second base station corresponding with target up-link wireless signal.Because this
In the technical solution that inventive embodiments provide, wireless relay module present in wireless relay apparatus can be only received by itself
Being sent to the uplink and downlink wireless signal of the PLMN categorical match of the operator described in itself in all uplink and downlink wireless signals
Antenna or covering antenna are accessed, so that wireless relay apparatus only carries out the wireless signal of the operator belonging to itself
Forward process, avoid occur in existing wireless relay apparatus adjacent frequency interference, intermodulation distortion the defects of, improve user's body
It tests.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (8)
1. a kind of wireless relay apparatus characterized by comprising access antenna, wireless relay module and covering antenna；
The access antenna, for receiving the downstream wireless signals of first base station transmission and being sent to the downstream wireless signals
The wireless relay module, the access antenna present position are located in the coverage area of the first base station；
The covering antenna, for receiving the up-link wireless signal of second terminal sending and being sent to the up-link wireless signal
The wireless relay module, the second terminal present position are located in the coverage area of the covering antenna；
The wireless relay module, for by it is described access antenna send the downstream wireless signals in the wireless relay
The target downlink wireless signal of PLMN categorical match belonging to equipment is sent to the covering antenna；
In the up-link wireless signal that the wireless relay module is also used to send on the covering antenna with it is described it is wireless in
The target up-link wireless signal of the PLMN categorical match belonging to the equipment, is sent to the access antenna；
The covering antenna is also used to for the target downlink wireless signal that the wireless relay module is sent being sent to and institute
State the corresponding first terminal of target downlink wireless signal；
The access antenna is also used to for the target up-link wireless signal that the wireless relay module is sent being sent to and institute
State corresponding second base station of target up-link wireless signal.
2. wireless relay apparatus according to claim 1, which is characterized in that the wireless relay module includes Base-Band Processing
Unit, the baseband processing unit include: protocol analysis subelement, control management subelement and digital filtering subunit；
The protocol analysis subelement, the downstream wireless signals for sending to the access antenna parse, to obtain
Take the PLMN classification of the downstream wireless signals；
The control management subelement be used to be obtained according to the PLMN classification that prestores and the protocol analysis subelement it is described under
The PLMN classification of row wireless signal determines the target downlink wireless signal and the covering day in the downstream wireless signals
The target up-link wireless signal in the received up-link wireless signal of line；The PLMN classification prestored is described wireless
The PLMN classification of trunking operator；
The digital filtering subelement, for that will be removed in the downstream wireless signals described in control management subelement determination
Downstream wireless signals other than target downlink wireless signal filter out, and the target downlink wireless signal is sent to the covering
Antenna；
The digital filtering subelement is also used to that the control will be removed in the up-link wireless signal of the covering antenna transmission
Manage subelement determine the target up-link wireless signal other than up-link wireless target signal filter, and by the target uplink without
Line signal is sent to the access antenna.
3. wireless relay apparatus according to claim 2, which is characterized in that
The protocol analysis subelement is also used to parse the downstream wireless signals that the access antenna is sent, to obtain
Take the signal strength and signal quality of the downstream wireless signals；
The control management subelement is also used to be obtained according to the PLMN classification and protocol analysis unit that prestore described
The target component of downstream wireless signals matches the uplink filtering parameter and downstream filtering parameter of the digital filtering unit
It sets；
The target component includes: PLMN classification, signal strength and signal quality.
4. wireless relay apparatus according to claim 2, which is characterized in that the wireless relay module further include: outdoor
Radio-frequency front-end and indoor radio frequency front end；
The first end of the outdoor radio-frequency front-end connects the access antenna, described in the second end connection of the outdoor radio-frequency front-end
The first end of baseband processing unit, the downstream wireless signals for sending the access antenna are sent at the base band
Manage unit；
The target uplink signal that the outdoor radio-frequency front-end is also used to send the baseband processing unit is sent to described
Access antenna；
The outdoor radio-frequency front-end is also used to the up channel and downlink letter between baseband processing unit and the access antenna
Road is handled, so as to only exist a communication channel between the outdoor radio-frequency front-end and the access antenna；
The first end of the indoor radio frequency front end connects the covering antenna, described in the second end connection of the indoor radio frequency front end
The second end of baseband processing unit, the up-link wireless signal for sending the covering antenna are sent at the base band
Manage unit；
The target downlink signal that the indoor radio frequency front end is also used to send the baseband processing unit is sent to described
Cover antenna；
The indoor radio frequency front end is also used to the up channel and downlink letter between baseband processing unit and the covering antenna
Road is handled, so as to only exist a communication channel between the indoor radio frequency front end and the covering antenna.
5. wireless relay apparatus according to claim 4, which is characterized in that the second end of the outdoor radio-frequency front-end and institute
It states and is additionally provided with outdoor transceiver unit between the first end of baseband processing unit, at the indoor radio frequency front end and the base band
It manages and is additionally provided with indoor transceiver unit between the second end of unit；
The outdoor transceiver unit, the downstream wireless signals for sending the outdoor radio-frequency front-end successively carry out low
The baseband processing unit is sent to after noise amplification, automatic growth control and analog to digital conversion；
The outdoor transceiver unit, the target uplink signal for being also used to send the baseband processing unit successively carry out
The outdoor radio-frequency front-end is sent to after digital to analog conversion, auto level control and power amplification；
The interior transceiver unit, the up-link wireless signal for sending the indoor radio frequency front end successively carries out low
The baseband processing unit is sent to after noise amplification, automatic growth control and analog to digital conversion；
The target downlink signal that the interior transceiver unit is also used to send the baseband processing unit successively carries out
The indoor radio frequency front end is sent to after digital to analog conversion, auto level control and power amplification.
6. wireless relay apparatus according to claim 4, which is characterized in that when the wireless relay apparatus is time division duplex
When TDD system, the outdoor radio-frequency front-end and the indoor radio frequency front end are switch；
The outdoor radio-frequency front-end is used for the up channel and down channel between baseband processing unit and the access antenna
Switched over according to default timing, the indoor radio frequency front end be used for baseband processing unit and it is described covering antenna between
Row channel and down channel are switched over according to default timing.
7. wireless relay apparatus according to claim 4, which is characterized in that when the wireless relay apparatus is frequency division duplex
When FDD system, the outdoor radio-frequency front-end and the indoor radio frequency front end are duplexer；
The outdoor radio-frequency front-end be used for by between the baseband processing unit and the outdoor radio-frequency front-end up channel and
Down channel is combined, so that there is only a communication channels between the outdoor radio-frequency front-end and the covering antenna；
The indoor radio frequency front end is also used to a communication channel between the covering antenna and the indoor radio frequency front end
Separation, so that the communication channel between the indoor radio frequency front end and the baseband processing unit includes up channel and downlink letter
Road.
8. a kind of wireless communication system, which is characterized in that including such as described in any item wireless relay apparatus of claim 1-7.
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| CN201811114787.9A CN109104232B (en) | 2018-09-25 | 2018-09-25 | Wireless relay equipment and wireless communication system |
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