CN105246092B - A kind of in-door covering signal enhancing equipment and its signal processing method - Google Patents
A kind of in-door covering signal enhancing equipment and its signal processing method Download PDFInfo
- Publication number
- CN105246092B CN105246092B CN201410328414.7A CN201410328414A CN105246092B CN 105246092 B CN105246092 B CN 105246092B CN 201410328414 A CN201410328414 A CN 201410328414A CN 105246092 B CN105246092 B CN 105246092B
- Authority
- CN
- China
- Prior art keywords
- signal
- power line
- downlink
- frequency signal
- line modem
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of in-door covering signal enhancing equipment and its signal processing methods to improve the performance of communication network to reduce the decaying of in-door covering signal.In-door covering signal enhancing equipment includes: the first power line modem, for downlink radio-frequency signal to be converted to downlink power line signal；Uplink power line signal is converted into upstream radio-frequency signal；Second power line modem, for downlink power line signal to be converted to downlink radio-frequency signal；And upstream radio-frequency signal is converted into uplink power line signal；Signal amplification unit, for being sent to access antenna after being handled downlink radio-frequency signal；And the second power line modem is sent to after being handled upstream radio-frequency signal, synchronization module obtains synchronization time for demodulating the synchronization signal received, and the switching in uplink/downlink channel is controlled according to synchronization time.
Description
Technical field
The present invention relates at wireless communication technology field more particularly to a kind of in-door covering signal enhancing equipment and its signal
Reason method.
Background technique
TD-LTE (Time Division Long Term Evolution, timesharing long term evolution) is usually operated at high frequency
Section, such as 2.6GHz, propagation loss and penetration loss are all larger, therefore usually will cause in the room TD-LTE depth covering performance very
Difference.The main reason for causing this problem is that the penetration loss (generally in 20dB or so) of building can significantly reduce signal level.
The wall penetration loss of signal when to overcome in outdoor cover room, the common solution of one kind is in TD-LTE system
In-door covering is carried out using in-door covering enhancing equipment (such as micropower wireless discharging-directly station).As shown in Figure 1, outdoor deployment returns day
The outdoor signal received is introduced interior by RF cable by line, and indoor deployment signal amplification unit passes through after amplifying to signal
Access antenna re-emits away.Passback antenna is connected between indoor signal amplifying unit by RF cable, and usual radio frequency
Cable guides to interior by air louver, so as to effectively overcome wall to wear damage.In-door covering enhancing equipment can not increase base
Guarantee the indoor depth covering of network under the premise of quantity of standing, and its cost is (such as well below the small base station for having effect same
The base station Femto).Due to in-door covering enhancing equipment have many advantages, such as to be not necessarily to wired passback, equipment cost it is low, easy for installation, it
It is a kind of effective scheme for enhancing in-door covering.
But the main problem of this scheme is, if the peace of the placement location distance passback antenna of indoor signal amplifying unit
Holding position is farther out, it is necessary to it is laid with longer RF cable connection passback antenna and indoor signal amplifying unit, it is this indoor additional
On the one hand increased RF cable increases the decaying of radiofrequency signal, in general, will cause 6-8dB using 10 meters of RF cable
Signal decaying, affect the performance of communication network.On the other hand indoor beauty is influenced, user's acceptance is reduced.
Summary of the invention
The embodiment of the present invention provides a kind of in-door covering signal enhancing equipment and its signal processing method, to reduce interior
Signal decaying is covered, the performance of communication network is improved.
The embodiment of the present invention provides a kind of in-door covering signal enhancing equipment, including the first power line modem,
Two power line modems and signal amplification unit are provided with synchronization module in the signal amplification unit, in which:
First power line modem is connect by RF cable with passback antenna, and passes through power line and the
The connection of two power line modems, second power line modem are connect with the signal amplification unit；The letter
Number amplifying unit is connect by RF cable with access antenna；The synchronization module and second power line modem
Connection；
First power line modem, the downlink radio-frequency signal for sending the passback antenna are converted to down
Row power line signal is simultaneously sent to the second power line modem；And send second power line modem
Uplink power line signal is converted to upstream radio-frequency signal and is sent to the passback antenna；
Second power line modem, the downlink electric power for sending first power line modem
Line signal is converted to downlink radio-frequency signal and is sent to the signal amplification unit；And send the signal amplification unit
Upstream radio-frequency signal is converted to uplink power line signal and is sent to first power line modem；
The signal amplification unit, at the downlink radio-frequency signal for will be sent to the second power line modem
Access antenna is sent to after reason；And described the is sent to after being handled the upstream radio-frequency signal that the access antenna is sent
Two power line modems；
The synchronization module passes through first power line modem and described for receiving the passback antenna
The synchronization signal that two power line modems are sent；Demodulate the synchronization signal and obtain synchronization time, according to it is described synchronous when
Between control second power line modem uplink/downlink channel switching, or according to the synchronization time control
The second power line modem uplink/downlink channel switching and first power line modem uplink/
The switching of down going channel.
The embodiment of the present invention provides a kind of synchronization signal processing method based on above-mentioned in-door covering signal enhancing equipment,
Include:
First power line modem receives the passback antenna and sends synchronization signal；
The synchronization signal is sent to by first power line modem by the second power line modem
The synchronization module；
The synchronization module demodulates the synchronization signal and obtains synchronization time, and according to synchronization time control described the
The switching in two power line modem uplink/downlink channels；Or second power line is controlled according to the synchronization time
The switching in modem uplink/downlink channel and the switching in the first power line modem uplink/downlink channel.
The embodiment of the present invention provides a kind of downlink signal processing method based on above-mentioned synchronization signal processing method, comprising:
Down going channel open when, the first power line modem by it is described passback antenna send downlink radio-frequency signal
It is converted to downlink power line signal and is sent to second power line modem；
The downlink power line signal is converted to downlink radio-frequency signal and sent by second power line modem
To the signal amplification unit；
The signal amplification unit be sent to after handling the downlink radio-frequency signal received the access antenna into
Row transmitting.
The embodiment of the present invention provides a kind of uplink signal processing method based on above-mentioned synchronization signal processing method, comprising:
When data feedback channel is opened, uplink that second power line modem sends the signal amplification unit
Radiofrequency signal is converted to uplink power line signal and is sent to first power line modem, the upstream radio-frequency signal
It is received for the signal amplification unit from the access antenna and is sent to the signal amplification unit after being handled；
The uplink power line signal is converted to upstream radio-frequency signal and passed through by first power line modem
The passback antenna sends base station.
In-door covering signal enhancing equipment provided in an embodiment of the present invention and its signal processing method, indoors deployment pairing
Two power line modems used are connect, in this way, on receiving respectively with passback antenna and signal amplification unit
After row/downlink radio-frequency signal, signal conversion and transmission are carried out by two power line modems of deployment indoors, two
A power line modem carries out the switching of row of channels up and down according to the synchronization signal that base station issues, due to indoors without making
Signal transmission is carried out with RF cable, effectively reduces the length of RF cable, so as to reduce signal transmission attenuation, is improved
The performance of communication network.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by written explanation
Specifically noted structure is achieved and obtained in book, claims and attached drawing.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes a part of the invention, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is that in the prior art, in-door covering enhances the attachment structure schematic diagram of equipment；
Fig. 2 is in the embodiment of the present invention, and in-door covering enhances the structural schematic diagram of equipment；
Fig. 3 is the implementation process diagram of synchronization signal processing method in the embodiment of the present invention；
Fig. 4 is the implementation process diagram of downlink signal processing method in the embodiment of the present invention；
Fig. 5 is the implementation process diagram of uplink signal processing method in the embodiment of the present invention.
Specific embodiment
Power line communication (Power Line Communication, PLC) technology refers to be believed using power line transmission data
Number a kind of communication mode.The technology is load after the adapter modulation that the high-frequency signal of carrying information is passed through transmission information
In electric current, the transmission of data is then carried out using power line.The adapter for receiving information separates high-frequency signal from electric current again
It demodulates and, and be transmitted to computer or phone to realize that information is transmitted, to realize in the case where not needing rewiring
The access of network.
Wherein, power line communications apparatus includes the adapter sent and received information, as power line communication modulation /demodulation
Device (Homeplug being commonly called as), it is set up using the existing power line of family or office and socket at network, to connect PC, ADSL
Modem, set-top box, audio frequency apparatus, monitoring device and other intelligent electric equipment etc., to transmit data, voice and video.
It has the characteristics that plug and play, can pass through average family power line transmission signals.
The basic principle of power line communication is, when sending, is modulated user data using modulation technique, being loaded with
The high frequency of information loads on electric current, is then transmitted on power line；In receiving end, first passes through filter and take modulated signal
Out, using demodulation, so that it may obtain former signal of communication, and be transmitted to computer or phone, to realize that information is transmitted.In general,
Due to the strong interference of 50Hz harmonic wave on power line, prevent the voice signal of 0.3-3.4kHz directly on power line from carrying out
Transmission, can only signal spectrum move 40kHz or more just and can be carried out signal transmission.Since power line communication passes through multiplexing power line
Road is communicated, and without creating physical communication lines again, can save capital expenditure and daily maintenance expense.
Based on this, present invention implementation provides a kind of in-door covering signal enhancing equipment and its signal based on power line communication
Transmission method decays for reducing radio signal transmission, improves the performance of communication network, meanwhile, so that in-door covering signal increases
Strong equipment is more beautiful.
Below in conjunction with Figure of description, preferred embodiment of the present invention will be described, it should be understood that described herein
Preferred embodiment only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention, and in the absence of conflict, this hair
The feature in embodiment and embodiment in bright can be combined with each other.
As shown in Fig. 2, being the structural schematic diagram of in-door covering signal enhancing equipment provided in an embodiment of the present invention, comprising:
First power line modem 21, the second power line modem 22 and signal amplification unit 23, the modulation of the first power line
Demodulator 21 is connect with passback antenna and the second power line modem 22 respectively.Wherein, passback antenna is connect with base station, is used
In receiving downlink radio-frequency signal that base station is sent and be sent to the first power line modem 21 and will be from the first power line
Modem 21 receives upstream radio-frequency signal and is sent to base station.Second power line modem 22 respectively with the first electric power
Line modem 21 and signal amplification unit 23 connect, and signal amplification unit 23 is connect by RF cable with access antenna,
Access antenna is used to receive the upstream radio-frequency signal of UE transmission and is sent to the second power line modem 22 and by signal
The downlink radio-frequency signal that amplifying unit 23 is sent is sent to UE.
Wherein, the first power line modem 21 is connect with passback antenna by RF cable, with the second power line tune
Modulator-demodulator 22 is connected by power line, and the second power line modem 22 is connected with signal amplification unit 23 by RF cable
It connects.
When it is implemented, the first power line modem 21, the downlink radio-frequency signal for that will return antenna transmission turns
It is changed to downlink power line signal and is sent to the second power line modem；And the second power line modem 22 is sent out
The uplink power line signal sent is converted to upstream radio-frequency signal and is sent to passback antenna；Second power line modem 22,
Downlink power line signal for sending the first power line modem 21 is converted to downlink radio-frequency signal and is sent to letter
Number amplifying unit 23；And the upstream radio-frequency signal that signal amplification unit 23 is sent is converted into uplink power line signal and is sent
To the first power line modem 21；Signal amplification unit 23, for what will be sent to the second power line modem 22
Downlink radio-frequency signal is sent to access antenna after being handled；And it is handled the upstream radio-frequency signal that antenna is sent is accessed
After be sent to the second power line modem.
Specifically, passback antenna is installed on the preferable region of outdoor base station signal, communicated with outdoor base station, downlink work
It is responsible for receiving the signal from Base Transmitter and by the first power line modem 21 and the second power line from aerial when making
Modem 22 is sent to signal amplification unit 23, by treated the UE radiofrequency signal of signal amplification unit 23 when uplink works
Launch.
First power line modem 21 completes the conversion function between radiofrequency signal and power line transmission signals, leads to
Often being installed at the nearest power line access point of distance passback antenna (in such as domestic applications, can be installed on distance passback antenna
Locate nearest socket), it returns and is connected between antenna and the first power line modem 21 by RF cable.First power line
The power line that modem 21 is accessed by it takes electricity simultaneously, and passes through electric power between the second power line modem 22
Line is communicated.
Second power line modem 22 completes the conversion function between radiofrequency signal and power line transmission signals, leads to
It is often matched with the first power line modem 21, such as when downlink reception, the first power line modem 21 will return
Pass the radiofrequency signal that receives of antenna and be converted into the signal for being suitble to transmit on power line, the second power line modem 22 from
After receiving signal on power line, the signal transmitted on power line will be suitble to be changed to radiofrequency signal again.Second power line modulatedemodulate
The power line for adjusting device 22 to access by it takes electricity simultaneously, and passes through power line between the first power line modem 21 and carry out
Communication.
Signal amplification unit 23 is connected with the second power line modem 22 and access antenna, completes the filter of radiofrequency signal
Involve the functions such as power amplification, need to usually have sufficiently high link gain.
Access antenna is connected with signal amplification unit 23, is responsible for when downlink working that treated penetrates by signal amplification unit 23
Frequency signal is launched, and uplink will be responsible for from the aerial signal for receiving UE transmitting when working and give signal amplification unit 23.
It should be noted that for tdd systems, such as TD-LTE system, since TD-LTE system is time division duplex system
System, uplink and downlink works are in the different time-gap of same frequency range, and therefore, its stationary problem is to realize that the enhancing of TD-LTE in-door covering is set
One of standby critical issue.Therefore, power line modem is also required to carry out corresponding synchronizing process, to determine that uplink and downlink is believed
Number direction.
In the embodiment of the present invention, synchronization module can be set in signal amplification unit 23, wherein synchronization module and
The connection of two power line modems 22 passes through the first power line modem 21 and the second electric power for receiving passback antenna
The synchronization signal that line modem 22 is sent；Demodulation synchronization signal obtains synchronization time, according to the second electricity of control synchronization time
The switching in the uplink/downlink channel of line of force modem 22, or the second power line modulation /demodulation is controlled according to synchronization time
The switching in the uplink/downlink channel of the switching and the first power line modem 21 in 22 uplink/downlink channel of device.Specific implementation
When, synchronization module exports synchronization time to the second power line modem 22 or first after obtaining synchronization time
Power line modem 21, to control the second power line modem 22 or the first about 21 power line modem
Row of channels corresponding switching time opens the downlink signal that down going channel repeating base station is sent, in uplink that is, in descending time slot
Gap opens the uplink signal that data feedback channel amplification forwarding UE (User Equipment, user equipment) is sent.
Wherein, the synchronization signal that passback antenna is sent is radiofrequency signal, and the first power line modem 21 is receiving
After returning the synchronization signal that antenna is sent, it is converted into and is suitble to the signal in power line transmission and is sent to the second power line
Being suitble to of receiving, is converted into radio frequency in the signal of power line transmission by modem 22, the second power line modem 22
Synchronization module is then forwarded to after signal, the synchronization signal that synchronization module demodulation receives obtains synchronization time.
When specific implementation, for the first power line modem 21, down going channel can all maintain a normally open state thereon
(at this point, up and down it is contemplated that carrying out signal isolation by circulator between row of channels), the then synchronization signal that synchronization module is sent out
The working condition of the row of channels up and down of the second power line modem 22, the i.e. downlink in synchronization signal instruction can only be controlled
Time slot, the second power line modem 22 are in down going channel and open data feedback channel closed state, and only signal is electric from first
Line of force modem 21 is transmitted to the second power line modem 22；And in the ascending time slot of synchronization signal instruction, the second electricity
Line of force modem 22 is in data feedback channel and opens down going channel closed state, only signal from the second power line modulation /demodulation
Device 22 is transmitted to the first power line modem 21.
Preferably, the second power line modem 22 can also give the first electric power by power line transmission synchronization signal
Line modem 21, the i.e. descending time slot in synchronization signal instruction, the first power line modem 21 and the second power line
Modem 22 opens data feedback channel closed state, only signal from the first power line modem all in down going channel
21 are transmitted to the second power line modem 22；And in the ascending time slot of synchronization signal instruction, the first power line modem
21 and second power line modem 22 all in data feedback channel open down going channel closed state, only signal from second electricity
Line of force modem 22 is transmitted to the first power line modem 21.
Preferably, when it is implemented, power line signal is analog intermediate frequency signal；First power line modem 21, can
For downlink radio-frequency signal progress down coversion to be obtained downlink analog intermediate frequency signal；And by institute's uplink analog intermediate frequency signal into
Row up-conversion obtains upstream radio-frequency signal；Second power line modem 22, can be used for by downlink analog intermediate frequency signal into
Row up-conversion obtains downlink radio-frequency signal；And upstream radio-frequency signal progress down coversion is obtained into uplink analog intermediate frequency signal.
Embodiment in order to better understand the present invention, below with in-door covering signal enhancing equipment to downlink signal at
The specific implementation process of the embodiment of the present invention is illustrated for the treatment process of reason.
When the downlink signal that in-door covering signal enhancing equipment amplification base station is sent to UE, passback antenna receives base station hair
The downlink signal sent, and the first power line modem 21 is given the radio signal transmission received by RF cable.The
Radiofrequency signal is carried out down coversion by one power line modem 21, is converted into being suitble to the intermediate frequency transmitted on power line simulation letter
Number, and signal is transferred to by power line by the second power line modem 22.Second power line modem 22 receives
The signal to be come from the first power line modem 21 by power line transmission reverts to original radio frequency after carrying out up-conversion
Signal (i.e. the downlink signal that the first power line modem 21 receives from passback antenna), and it is single to be transferred to signal amplification
Member 23.Signal amplification unit 23 leads to after being filtered, amplify from the radiofrequency signal that the second power line modem 22 receives
It crosses access antenna and is sent to UE.Due in the above process, the first electric power modem 21 and the second electric power modem 22
Between only carry out one-to-one point to point link, without carrying out one-to-many multiple access communication, so without complicated digital communication
Agreement, it is therefore not necessary to carry out digital-to-analogue/analog-to-digital conversion, the radiofrequency signal received is transformed into intermediate frequency mould by power line modem
Quasi- signal, is then directly coupled to this analog signal on power line and is transmitted.Due to not transforming on numeric field, because
This, can save DA required for digitized processing A/D chip and digit chip, on the one hand, signal processing institute can be reduced
It takes time, on the other hand, cost can be significantly reduced.
A kind of reality of power line communication between first power line modem 21 and the second power line modem 22
It applies for example lower shown: being inserted into the first power line modem 21 of a certain power outlet the radio frequency received from passback antenna
Signal (carrier wave of such as TD-LTE is 2.6GHz radiofrequency signal) down coversion is converted to and the intermediate frequency transmitted on power line is suitble to simulate
Signal (such as frequency range 2MHz~30MHz), and analog intermediate frequency signal is coupled into power line.It is inserted into another power outlet
The second power line modem 22 analog intermediate frequency signal is extracted from power line, its up-conversion is converted on primary carrier
The radiofrequency signal of (such as 2.6GHz), and give signal amplification unit 23.
In-door covering signal enhancing equipment is similar with the above process to the treatment process of uplink signal, when in-door covering signal
When the uplink signal that enhancing equipment amplification UE is sent to base station, access antenna receives the uplink signal that UE is sent, and puts by signal
After the filtering of big unit 23, enhanced processing, the second power line modem 22 is given filtering, amplified radiofrequency signal.The
Two power line modems 22 are converted into radiofrequency signal the signal for being suitble to transmit on power line, and by power line letter
Number it is transferred to the first power line modem 21.First power line modem 21 is received from the second power line modulation /demodulation
The signal that device 22 is come by power line transmission after reverting to the upstream radio-frequency signal on primary carrier, is sent by passback antenna
To base station.
Preferably, when it is implemented, the second power line modem 22 can be with the integrated (conjunction of signal amplification unit 23
And) setting.On the one hand, it is possible to reduce an active equipment unit, so that the integrated level of products scheme is higher, more compact
It is beautiful.On the other hand, it is possible to reduce a power supply device only needs a socket to take electricity, so that it may meet the second power line
The need of work of modem 22 and signal amplification unit 23.Meanwhile also eliminating 22 He of the second power line modem
RF cable between signal amplification unit 23 more facilitates so that laying installation, also reduces RF cable loss.Finally, setting
Synchronization signal more convenient can be passed to the second power line modulation /demodulation by the synchronization module being placed in signal amplification unit 23
Device 22.
Certainly access antenna can also be integrally disposed with signal amplification unit 23.More preferably, the second power line modem
22, signal amplification unit 23 and access antenna three integrate, to improve the aesthetics of equipment, it is difficult to reduce deployed with devices
Degree.
Based on the same inventive concept, a kind of in-door covering signal based on above-mentioned offer is additionally provided in the embodiment of the present invention
The signal processing method for enhancing equipment, since the principle that the above method solves the problems, such as is similar to in-door covering signal enhancing equipment,
Therefore the implementation of the above method may refer to the implementation of equipment, and overlaps will not be repeated.
It may include following step as shown in figure 3, being synchronization signal processing flow schematic diagram provided in an embodiment of the present invention
It is rapid:
S31, the first power line modem receive passback antenna and send synchronization signal；
The synchronization signal is sent to by S32, the first power line modem by the second power line modem
The synchronization module；
S33, synchronization module demodulate the synchronization signal and obtain synchronization time；
S34, synchronization module control the second power line modem uplink/downlink channel according to the synchronization time
Switching；Or according to control the synchronization time the second power line modem uplink/downlink channel switching and
The switching in the first power line modem uplink/downlink channel.
As shown in figure 4, for the downlink signal processing provided in an embodiment of the present invention based on above-mentioned synchronization signal processing method
The implementation process diagram of method, may comprise steps of:
S41, down going channel open when, the first power line modem will return antenna send downlink radio-frequency signal
It is converted to downlink power line signal and is sent to the second power line modem.
Preferably, power line signal can be analog intermediate frequency signal, the first power line modem believes downlink radio frequency
Number carry out down coversion obtain downlink analog intermediate frequency signal.
Downlink power line signal is converted to downlink radio-frequency signal and is sent to letter by S42, the second power line modem
Number amplifying unit.
Downlink analog intermediate frequency signal progress up-conversion is obtained downlink radio-frequency signal by the second power line modem.
S43, signal amplification unit are sent to access antenna and send out after handling the downlink radio-frequency signal received
It penetrates.
As shown in figure 5, for the downlink signal processing provided in an embodiment of the present invention based on above-mentioned synchronization signal processing method
The implementation process diagram of method, may comprise steps of:
S51, when data feedback channel is opened, upstream radio-frequency that the second power line modem sends signal amplification unit
Signal is converted to uplink power line signal and is sent to the first power line modem.
Wherein, upstream radio-frequency signal is that signal amplification unit receives from access antenna and is sent to signal after being handled and puts
Big unit.
When it is implemented, upstream radio-frequency signal progress down conversion is obtained uplink power line by the second power line modem
Signal.
Uplink power line signal is converted to upstream radio-frequency signal and passes through passback by S52, the first power line modem
Antenna sends base station.
Believe specifically, uplink power line signal progress up conversion is obtained upstream radio-frequency by the first power line modem
Number.
In-door covering signal enhancing equipment provided in an embodiment of the present invention and its signal processing method, indoors deployment pairing
Two power line modems used are connect, in this way, on receiving respectively with passback antenna and signal amplification unit
After row/downlink radio-frequency signal, signal conversion and transmission are carried out by two power line modems of deployment indoors, by
Signal transmission is carried out without using RF cable in indoors, the length of RF cable is effectively reduced, so as to reduce letter
Number transmission attenuation, improves the performance of communication network.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications can be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of in-door covering signal enhancing equipment, which is characterized in that the in-door covering signal enhancing equipment application is in the time-division
In duplex system, including the first power line modem, the second power line modem and signal amplification unit, the letter
Synchronization module is provided in number amplifying unit, in which:
First power line modem is connect by RF cable with passback antenna, and passes through power line and the second electricity
The connection of line of force modem, second power line modem are connect with the signal amplification unit；The signal is put
Big unit is connect by RF cable with access antenna；The synchronization module is connect with second power line modem；
First power line modem, the downlink radio-frequency signal for sending the passback antenna are converted to downlink electrical
Line of force signal is simultaneously sent to the second power line modem；And the uplink for sending second power line modem
Power line signal is converted to upstream radio-frequency signal and is sent to the passback antenna；
Second power line modem, the downlink power line letter for sending first power line modem
It number is converted to downlink radio-frequency signal and is sent to the signal amplification unit；And the uplink for sending the signal amplification unit
Radiofrequency signal is converted to uplink power line signal and is sent to first power line modem；
The signal amplification unit, the downlink radio-frequency signal for sending to the second power line modem are sent out after handling
Give access antenna；And second electric power is sent to after being handled the upstream radio-frequency signal that the access antenna is sent
Line modem；
The synchronization module passes through first power line modem and second electricity for receiving the passback antenna
The synchronization signal that line of force modem is sent；It demodulates the synchronization signal and obtains synchronization time, controlled according to the synchronization time
The switching in the uplink/downlink channel of second power line modem is made, or according to synchronization time control
The switching in the second power line modem uplink/downlink channel and the uplink/downlink of first power line modem
The switching in channel.
2. equipment as described in claim 1, which is characterized in that the power line signal is analog intermediate frequency signal；
First power line modem, specifically for downlink radio-frequency signal progress down coversion is obtained downlink intermediate frequency
Analog signal；And uplink analog intermediate frequency signal progress up-conversion is obtained into upstream radio-frequency signal；
Second power line modem, specifically for downlink analog intermediate frequency signal progress up-conversion is obtained downlink
Radiofrequency signal；And upstream radio-frequency signal progress down coversion is obtained into uplink analog intermediate frequency signal.
3. equipment as described in claim 1, which is characterized in that second power line modem and the signal amplify
Unit merges setting.
4. equipment as described in claim 1, which is characterized in that the signal amplification unit merges with the access antenna to be set
It sets.
5. equipment as described in claim 1, which is characterized in that second power line modem, signal amplification
Unit and the access antenna merge setting.
6. the synchronization signal processing method that a kind of equipment as described in Claims 1 to 5 any claim executes, feature exist
In, comprising:
First power line modem receives the passback antenna and sends synchronization signal；
The synchronization signal is sent to described by first power line modem by the second power line modem
Synchronization module；
The synchronization module demodulates the synchronization signal and obtains synchronization time, and according to synchronization time control second electricity
The switching in line of force modem uplink/downlink channel；Or it is modulated according to second power line is controlled the synchronization time
The switching in demodulator uplink/downlink channel and the switching in the first power line modem uplink/downlink channel.
7. method as claimed in claim 6, which is characterized in that further include:
Down going channel open when, first power line modem by it is described passback antenna send downlink radio-frequency signal
It is converted to downlink power line signal and is sent to second power line modem；
The downlink power line signal is converted to downlink radio-frequency signal and is sent to institute by second power line modem
State signal amplification unit；
The signal amplification unit is sent to the access antenna and sends out after handling the downlink radio-frequency signal received
It penetrates.
8. the method for claim 7, which is characterized in that the power line signal is analog intermediate frequency signal；And
The downlink radio-frequency signal is converted into downlink power line signal, comprising:
Downlink radio-frequency signal progress down coversion is obtained into downlink analog intermediate frequency signal；
The downlink power line signal is converted into downlink radio-frequency signal, comprising:
Downlink analog intermediate frequency signal progress up-conversion is obtained into downlink radio-frequency signal.
9. method as claimed in claim 6, which is characterized in that further include:
When data feedback channel is opened, upstream radio-frequency that second power line modem sends the signal amplification unit
Signal is converted to uplink power line signal and is sent to first power line modem, and the upstream radio-frequency signal is institute
Signal amplification unit is stated to receive from the access antenna and be sent to the signal amplification unit after being handled；
The uplink power line signal is converted to upstream radio-frequency signal and passed through described by first power line modem
Passback antenna is sent to base station.
10. method as claimed in claim 9, which is characterized in that the power line signal is analog intermediate frequency signal；And
Upstream radio-frequency signal is converted into uplink power line signal, comprising:
Upstream radio-frequency signal carries out down coversion and obtains uplink analog intermediate frequency signal；And
The uplink power line signal is converted into upstream radio-frequency signal, comprising:
Uplink analog intermediate frequency signal progress up-conversion is obtained into upstream radio-frequency signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410328414.7A CN105246092B (en) | 2014-07-10 | 2014-07-10 | A kind of in-door covering signal enhancing equipment and its signal processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410328414.7A CN105246092B (en) | 2014-07-10 | 2014-07-10 | A kind of in-door covering signal enhancing equipment and its signal processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105246092A CN105246092A (en) | 2016-01-13 |
| CN105246092B true CN105246092B (en) | 2019-04-16 |
Family
ID=55043514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410328414.7A Active CN105246092B (en) | 2014-07-10 | 2014-07-10 | A kind of in-door covering signal enhancing equipment and its signal processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105246092B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106506041A (en) * | 2016-10-13 | 2017-03-15 | 杭州鸿雁智能科技有限公司 | A kind of Homeplug |
| CN107202998B (en) * | 2017-06-19 | 2023-09-29 | 北京航天长征飞行器研究所 | Real-time satellite signal simulator and simulation method for power line communication |
| CN110475254A (en) * | 2019-08-07 | 2019-11-19 | 福建京奥通信技术有限公司 | 5G wireless access formula indoor distributed system |
| CN112752280B (en) * | 2019-10-31 | 2023-01-13 | 中国移动通信有限公司研究院 | SSB receiving method and device |
| CN112311420B (en) * | 2020-05-27 | 2022-02-22 | 上海明波通信技术股份有限公司 | Single-standard dual-mode communication data frame configuration method, transceiving equipment and communication system |
| CN111741522B (en) * | 2020-07-06 | 2024-06-28 | 超讯通信股份有限公司 | Time sequence synchronizer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101378556A (en) * | 2008-09-26 | 2009-03-04 | 华为技术有限公司 | Method and apparatus for superposing base stations |
| CN202535381U (en) * | 2012-04-10 | 2012-11-14 | 珠海市横琴新区浩普能源科技有限公司 | Wireless broadband access point device with femtocell |
| CN103078693A (en) * | 2013-01-06 | 2013-05-01 | 清华大学 | Power-line-based digital terrestrial multimedia broadcasting (DTMB) transmission method and device |
| CN203151679U (en) * | 2013-03-20 | 2013-08-21 | 深圳市启晨实业有限公司 | Power video transmitter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4960108B2 (en) * | 2007-01-26 | 2012-06-27 | パナソニック株式会社 | Power line carrier communication system |
-
2014
- 2014-07-10 CN CN201410328414.7A patent/CN105246092B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101378556A (en) * | 2008-09-26 | 2009-03-04 | 华为技术有限公司 | Method and apparatus for superposing base stations |
| CN202535381U (en) * | 2012-04-10 | 2012-11-14 | 珠海市横琴新区浩普能源科技有限公司 | Wireless broadband access point device with femtocell |
| CN103078693A (en) * | 2013-01-06 | 2013-05-01 | 清华大学 | Power-line-based digital terrestrial multimedia broadcasting (DTMB) transmission method and device |
| CN203151679U (en) * | 2013-03-20 | 2013-08-21 | 深圳市启晨实业有限公司 | Power video transmitter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105246092A (en) | 2016-01-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105246092B (en) | A kind of in-door covering signal enhancing equipment and its signal processing method | |
| CN101931468B (en) | Access system and method for transmitting Ethernet signal and mobile communication signal | |
| CN103973396B (en) | Transmit the method, apparatus and radio frequency remoto module RRU of radio base band data | |
| CN106712851A (en) | Distributed wireless signal coverage system | |
| CN103023534B (en) | Electric power wireless communication system | |
| CN103248389A (en) | TD-LTE230MHz (Time Division Long Term Evolution 230MHz) based electric power wireless wideband radio frequency processing unit | |
| CN204244477U (en) | A kind of in-door covering strengthens system and equipment | |
| CN201994935U (en) | Communication system with modulation signal capable of penetrating through transformer based on power line | |
| CN203608366U (en) | LTE indoor covering system | |
| CN204968180U (en) | Intelligence passive switch and because intelligent lighting control system of this switch | |
| CN103944610A (en) | Signal access device based on three-phase electric PLC (programmable logic controller) | |
| CN203942528U (en) | A kind of wireless coverage strengthens equipment | |
| CN201467477U (en) | Cluster optical fiber coverage system and near-end machine thereof | |
| CN203788465U (en) | Connector of indoor distribution system and indoor distribution system | |
| CN203878647U (en) | Secondary water supply system based on power line carrier | |
| CN110401976A (en) | Based on the base station distributed 5G gNB of Coaxial distribution network network and implementation method | |
| CN102333389A (en) | Three-mode digital optical fiber remote system | |
| CN105515663A (en) | Downlink signal processing method of distribution automation system | |
| CN101494869A (en) | Microwave zooming wireless shrouding system and method | |
| CN107770782A (en) | Signal trunking method, relay and electric power signal transfer approach and system | |
| CN101741470A (en) | System and method for realizing indoor coverage in GSM network | |
| CN206922745U (en) | A kind of remote-controlled shortwave duplex communication system | |
| CN101841360A (en) | Mine wireless communication network based on multicarrier power amplifier technology | |
| CN101119127B (en) | Method to implement in-band gain balance of working frequency band for frequency-select module of repeater | |
| CN201742561U (en) | Digital optical fiber remote companding frequency-shift and frequency-selecting exclave cover system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |