CN100388825C - Signal loop device and base-station common antenna-feedback system using same - Google Patents
Signal loop device and base-station common antenna-feedback system using same Download PDFInfo
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Abstract
The present invention discloses a signal loop device which comprises a transmission filter, a reception filter at the antenna end, a reception filter at the cabinet end, and a power divider, wherein the input of the transmission filter is connected with a cabinet interface of the device, the output of the transmission filter is connected with an antenna interface of the device, the reception filter at the antenna end and the transmission filter form a duplexer at the antenna end, the input of the duplexer at the antenna end is connected with the antenna interface of the device, the output of the duplexer at the antenna end is connected with the power divider, the reception filter at the cabinet end and the transmission filter form a duplexer at the cabinet end, the input of the duplexer at the cabinet end is connected with a reception input interface of the device, the output of the duplexer at the cabinet end is connected with the cabinet interface of the device, output signals received by an antenna from the filter are divided into two paths of signals which are the same by the power divider, the input of the power divider is connected with the reception filter at the antenna end, and the two outputs of the power divider are respectively connected with a diversity reception output interface and a main reception output interface of the device. The present invention also simultaneously discloses a plurality of kinds of base-station common antenna-feedback systems. The signal loop device and the base-station common antenna-feedback system of the present invention are adopted, the influence for the performance of an original base station is little, additional equipment is simple and reliable, the cost is low, and the versatility is good.
Description
Technical field
The present invention relates to the station technology of moving communicating field, particularly a kind of signal closes the road device and utilizes this signal to close the base station co-space feedback system that the road device is realized.
Background technology
The different mobile communication system or the different business of identical mobile communication system need use different base stations, and the professional EV-DO of CDMA 2000 new types of data of for example promoting needs and the different base station of mature C DMA 2000 speech business 1X use.Here, described base station comprises indoor rack and outdoor antenna feeder installation.In general, outdoor antenna feeder installation need be installed in eminence, normally on iron tower and the roof.Yet the coexistence of various mobile communication standards now, the outdoor antenna feeder installation of the different system of different mobile communication operator such as GSM, CDMA 2000, WCDMA etc. has overworked iron tower and roof already, especially in the city.For mobile communication carrier, new outdoor antenna feeder installation is installed is comparison difficulty and uneconomic by building new iron tower or other facilities.If can utilize original outdoor antenna feeder installation that new indoor rack is inserted, to a great extent the workout cost problem.Therefore, need a kind of base station little to the influence of original system performance index and that the simple and reliable cost of optional equipment is low and be total to the antenna feeder solution.
Realize that it is the road of closing of realizing signal that the base station is total to its technological core of antenna feeder, realizes with mixer.Mixer comprises and closes terminal and branch terminal, and wherein closing terminal has an interface, and the branch terminal has two interfaces at least.The road of closing here is that broad sense is closed the road, is more than one minute for received signal, and promptly signal advances from closing terminal, from bringing out along separate routes; Be All-in-One for transmitting, promptly signal advances from a minute terminal, goes out from closing terminal.The existing road scheme of closing has two kinds: the road scheme is closed in the broadband and narrow-band filtering closes the road scheme.
Adopt co-space feedback system that the broadband closes road scheme realization as shown in Figure 1.Closing the used device in road is three-dB coupler or Wilkinson power splitter, is referred to as the broadband Hybrid Combiner.This road mode of closing can realize whole working frequency range, comprise transmit frequency band and receive the road of closing of frequency range, and same broadband Hybrid Combiner both can All-in-One, also can be more than one minute.That is to say that a broadband Hybrid Combiner can be realized transmitting simultaneously and received signal close the road, therefore the co-space feedback system that uses this mixer to form is simple in structure.In Fig. 1, the emission of two base stations/master receives common-use tunnel and directly receives a broadband Hybrid Combiner, further is connected to outdoor antenna feeder installation 1; The diversity reception passage of two base stations is received another broadband Hybrid Combiner, further is connected to outdoor antenna feeder installation 2, can constitute co-space feedback system like this.But the broadband Hybrid Combiner can cause the insertion loss of 3.5dB to transmitting, and this is by the operation principle decision of itself, can't avoid.For transmitting, insert the loss meeting and weaken the covering power of base station.
Adopt narrow-band filtering to close co-space feedback system that the road scheme realizes as shown in Figure 2, the device of using when closing the road to transmitting is the narrow-band filtering mixer; What use when closing the road to received signal is the broadband Hybrid Combiner.The chief component of narrow-band filtering mixer is two narrow band filters, and their passband is respectively the frequency at two places that transmit.Since adopted narrow band filter to close the road, therefore less for the insertion loss ratio that transmits.But adopt narrow-band filtering to close the road scheme when closing the road, need use extra duplexer and separate and merge device as receiving and transmitting signal.The effect of duplexer is to realize received signal and the channels share that transmits, and it also is divided into closes terminal and branch terminal, and wherein closing terminal has an interface, and the branch terminal has two interfaces at least.Two interfaces of duplexer branch terminal connect the received signal passage respectively and the passage that transmits, and are called receiving interface and emission interface; The interface that closes terminal connects the transmit-receive sharing passage.The emission of two base stations among the figure/master receives common-use tunnel to be needed respectively to tell transmitting and main received signal separately through two duplexers; Right transmitting of latter two base station links to each other with narrow band filter, and the main received signal of two base stations links to each other with the broadband Hybrid Combiner; Narrow band filter links to each other with the another one duplexer with the broadband Hybrid Combiner again, links to each other with emission/main reception antenna then; In order to realize diversity reception, the decomposition receive path of two base stations is connected to same diversity reception antenna by the broadband Hybrid Combiner.This shows: the first, though narrow band filter is low to the insertion loss that transmits, this scheme need be isolated respectively from the receiving and transmitting signal of two base stations and transmit, close Lu Houzai and received signal and merge, so complex structure; The second, count extra Signal Separation and the insertion loss that merges link in, narrow-band filtering closes the road scheme insertion loss that transmits total is about 1.5dB; The 3rd, the frequency that transmits at different need retune narrow band filter, so work zone width, does not have versatility.
This shows that in the prior art, the shortcoming of broadband Hybrid Combiner is big to the insertion loss that transmits, thereby influence the covering power of base station; The shortcoming of narrow-band filtering mixer is the big cost height of optional equipment volume, also can cause bigger insertion loss to transmitting simultaneously, and work zone width versatility is poor.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of signal to close the road device, this device is low, simple in structure to the insertion loss of signal, dependable performance and communication particular communication system had versatility.
The present invention also aims to provide three kinds of base station co-space feedback systems, under to the little prerequisite of existing base station performance influence, utilize signal provided by the present invention to close the road device the indoor rack of new base station is linked into the outdoor antenna feeder installation of existing base station, shared with the outdoor antenna feeder installation of realizing two class base stations.
In order to achieve the above object, signal provided by the invention closes the road device and comprises:
Emission filter is formed the antenna end duplexer with the antenna end receiving filter, receives filter with the rack termination and forms rack end duplexer, and its input is connected to the cubicle interface of this device, and output is connected to the antennal interface of this device; The antenna end receiving filter is formed the antenna end duplexer with emission filter, and its input is connected to the antennal interface of this device, and output is connected to the input of power splitter; The rack termination is received filter, forms rack end duplexer with emission filter, and its input is connected to the reception input interface of this device, and output is connected to the cubicle interface of this device; Power splitter, be used for the output signal of antenna end receiving filter is divided into the mutually the same signal of two-way, its input is connected to the output of antenna end receiving filter, and two outputs are connected respectively to the diversity reception output interface and the main output interface that receives of this device.
This signal closes the road device and can also further comprise between antenna end receiving filter and power splitter: low noise amplifier, be used for the output of antenna end receiving filter is amplified, its input is connected to the output of antenna end receiving filter, and output is connected to the input of power splitter.
Close the road device based on above-mentioned signal, the present invention also provides and has utilized this signal to close a kind of base station co-space feedback system that the road device is realized, comprising:
Have emission/master receive common-use tunnel and diversity reception passage the first indoor rack, have the second indoor rack, first outdoor antenna feeder installation, second outdoor antenna feeder installation of emission/master's reception common-use tunnel and diversity reception passage, comprise that also first signal closes the road device and secondary signal is closed the road device; Wherein, the emission of the first indoor rack and the second indoor rack/master receives common-use tunnel and is connected respectively to first signal and closes the cubicle interface that road device and secondary signal are closed the road device; The diversity reception passage of the first indoor rack and the second indoor rack is connected respectively to secondary signal and closes the diversity reception output interface that road device and first signal close the road device; First signal closes that road device and secondary signal close the road device, and the main output interface that receives is connected respectively to first signal and closes the receiving interface that road device and secondary signal are closed the road device; First signal closes the antennal interface that road device and secondary signal close the road device and is connected respectively to first outdoor antenna feeder installation and second outdoor antenna feeder installation.
Close the road device based on above-mentioned signal, the present invention also provides and has utilized this signal to close second kind of base station co-space feedback system that the road device is realized, comprising:
Have transmission channel, main receive path and diversity reception passage the first indoor rack, have the second indoor rack, first outdoor antenna feeder installation, second outdoor antenna feeder installation that emission/master receives common-use tunnel and diversity reception passage, comprise that also first signal closes the road device and secondary signal is closed the road device; Wherein, the transmission channel of the first indoor rack is connected to the cubicle interface that first signal closes the road device; The main receive path of the first indoor rack is connected to the main output interface that receives that first signal closes the road device; The emission of the second indoor rack/master receives common-use tunnel and is connected to the cubicle interface that secondary signal is closed the road device; The diversity reception passage of the first indoor rack and the second indoor rack is connected respectively to secondary signal and closes the diversity reception output interface that road device and first signal close the road device; The receiving interface that first signal closes the road device connects load; The main output interface that receives that secondary signal is closed the road device is connected to the receiving interface that secondary signal is closed the road device; First signal closes the antennal interface that road device and secondary signal close the road device and is connected respectively to first outdoor antenna feeder installation and second outdoor antenna feeder installation.
Close the road device based on above-mentioned signal, the present invention also provides and has utilized this signal to close the third base station co-space feedback system that the road device is realized, comprising:
Have transmission channel, main receive path and diversity reception passage the first indoor rack, have the second indoor rack, first outdoor antenna feeder installation, second outdoor antenna feeder installation of transmission channel, main receive path and diversity reception passage, comprise that also first signal closes the road device and secondary signal is closed the road device; Wherein, the transmission channel of the first indoor rack and the second indoor rack is connected respectively to first signal and closes the cubicle interface that road device and secondary signal are closed the road device; The main receive path of the first indoor rack and the second indoor rack is connected respectively to first signal and closes the main output interface that receives that road device and secondary signal are closed the road device; The diversity reception passage of the first indoor rack and the second indoor rack is connected respectively to secondary signal and closes the diversity reception output interface that road device and first signal close the road device; First signal closes the receiving interface that road device and secondary signal close the road device and connects load respectively; First signal closes the antennal interface that road device and secondary signal close the road device and is connected respectively to first outdoor antenna feeder installation and second outdoor antenna feeder installation.
In above three kinds of base station co-space feedback systems, described indoor rack with transmission channel, main receive path and diversity reception passage comprises emission filter, main receiving filter and diversity reception filter at least, transmission channel is connected to emission filter, and emission filter further connects base station transmit signals; Main receive path is connected to main receiving filter, and main receiving filter further connects base station master's received signal; The diversity reception passage is connected to the diversity reception filter, and diversity filter further connects the base station diversity received signal.
Described have a transmission channel, the indoor rack inside of main receive path and diversity reception passage, further comprise first, the second and the 3rd broadband Hybrid Combiner, emission filter, main receiving filter and diversity reception filter further are connected respectively to first, the second and the 3rd broadband Hybrid Combiner close terminal, two interfaces of the branch terminal of the first broadband Hybrid Combiner connect the main received signal of the base station first carrier and second carrier wave respectively, two interfaces of the branch terminal of the second broadband Hybrid Combiner connect transmitting of the base station first carrier and second carrier wave respectively, and two interfaces of the branch terminal of the 3rd broadband Hybrid Combiner connect the diversity reception signal of the base station first carrier and second carrier wave respectively.
Described indoor rack with emission/master's reception common-use tunnel and diversity reception passage comprises first duplexer and second duplexer at least, emission/master receives the terminal of closing that common-use tunnel is connected to first duplexer, and two interfaces of the branch terminal of first duplexer further connect base station master's received signal and base station transmit signals; The diversity reception passage is connected to the terminal of closing of second duplexer, and the emission interface of the branch terminal of second duplexer connects load, and receiving interface connects the base station diversity received signal.
Described indoor rack with emission/master's reception common-use tunnel and diversity reception passage comprises duplexer and receiving filter at least, emission/master receives the terminal of closing that common-use tunnel is connected to duplexer, and two interfaces of the branch terminal of duplexer further connect base station master's received signal and base station transmit signals; The diversity reception passage is connected to receiving filter, and receiving filter further connects the base station diversity received signal.
Described indoor rack with emission/master's reception common-use tunnel and diversity reception passage further comprises first, second, the 3rd broadband Hybrid Combiner, two interfaces of the branch terminal of duplexer are connected respectively to first, the second broadband Hybrid Combiner close terminal, receiving filter is connected to the terminal of closing of the 3rd broadband Hybrid Combiner, two interfaces of the branch terminal of the first broadband Hybrid Combiner connect the main received signal of the base station first carrier and second carrier wave respectively, two interfaces of the branch terminal of the second broadband Hybrid Combiner connect transmitting of the base station first carrier and second carrier wave respectively, and two interfaces of the branch terminal of the 3rd broadband Hybrid Combiner connect the diversity reception signal of the base station first carrier and second carrier wave respectively.
Adopt above signal to close the road device and utilize this signal to close the base station co-space feedback system that the road device is realized, because the emission filter in apparatus of the present invention has bigger cavity and chamber number still less, therefore by the caused insertion loss of apparatus of the present invention itself to transmitting, be generally 0.4dB, the insertion loss (3.5dB) that causes well below the broadband Hybrid Combiner; Because apparatus of the present invention do not need extra Signal Separation and merging equipment when constituting the base station co-space feedback system, exempted the insertion loss that these equipment cause transmitting, therefore the integral body that causes transmitting is inserted loss, promptly from the output channel of rack to the insertion loss the input channel of antenna, insertion loss (1.5dB) less than the narrow-band filtering mixer, therefore, apparatus of the present invention are to the performance index of former base station, and especially the influence of the covering power of base station is very little.Same because apparatus of the present invention do not need extra Signal Separation and merging equipment when constituting the base station co-space feedback system, therefore for the base station co-space feedback system, it is much lower that the complexity of optional equipment and cost all close the road than narrow-band filtering.
Because the passband of the emission filter of apparatus of the present invention is whole band downlink, the passband of receiving filter is whole uplink band, that is to say that the working signal to CDMA 2000 does not have selectivity, therefore has the versatility to CDMA 2000 systems.In addition, close the road device with signal provided by the present invention and form the base station co-space feedback system not to the requirement to some extent of service in base station type, and only to the external interface requirement to some extent of indoor rack.That is to say, as long as the external interface of indoor rack satisfies certain type, signal provided by the present invention closes the road device and is not limited to the outdoor antenna feeder installation that indoor rack with CDMA 2000 EV-DO base stations is linked into existing CDMA 2000 1X base stations, can also with as between CDMA 2000 1X base stations and the CDMA 2000 1X base stations, CDMA 2000 EV-DO base stations and CDMA 2000EV-DO base station; Even, if adjust the parameter that signal provided by the invention closes the road device, can also use it for the co-space feedback system of two GSM base stations under some configuration.
Description of drawings
Fig. 1 is the block diagram that the base station co-space feedback system on road is closed in the available technology adopting broadband.
Fig. 2 is the block diagram that the available technology adopting narrow-band filtering closes the base station co-space feedback system on road.
Fig. 3 is the block diagram that passive signal of the present invention closes the road device.
Fig. 4 is the block diagram that active signal of the present invention closes the road device.
Fig. 5 adopts signal of the present invention to close the block diagram of a kind of base station co-space feedback system of road device.
Fig. 6 adopts signal of the present invention to close the block diagram of the another kind of base station co-space feedback system of road device.
Fig. 7 adopts signal of the present invention to close the CDMA 2000 1X base stations of road device and the block diagram of CDMA2000 EV-DO base station co-space feedback system embodiment one.
Fig. 8 adopts signal of the present invention to close the CDMA 2000 1X base stations of road device and the block diagram of CDMA2000 EV-DO base station co-space feedback system embodiment two.
Fig. 9 adopts signal of the present invention to close the CDMA 2000 1X base stations of road device and the block diagram of CDMA2000 EV-DO base station co-space feedback system embodiment three.
Figure 10 adopts signal of the present invention to close the CDMA 2000 1X base stations of road device and the block diagram of CDMA2000 EV-DO base station co-space feedback system embodiment four.
Figure 11 adopts signal of the present invention to close the CDMA 2000 1X base stations of road device and the block diagram of CDMA2000 EV-DO base station co-space feedback system embodiment five.
Embodiment
Signal provided by the present invention closes the road device, is actually two duplexers sharing same emission filter, owing to shared same emission filter, has reduced the insertion loss to transmitting; Simultaneously, utilize two the same apparatus of the present invention can realize the co-space feedback system of two base stations, do not need extra Signal Separation and merge device; And apparatus of the present invention have versatility for the frequency range type of appointment, do not need to be configured separately for each base station.Therefore, adopt signal provided by the present invention to close the base station co-space feedback system that the road device is realized CDMA 2000 1X business and EV-DO business, have the former 1X base station performance influence advantage that cost little, simple in structure is low and versatility is good.
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with drawings and the specific embodiments.
Please refer to Fig. 3, Fig. 3 is the block diagram that passive signal of the present invention closes the road device.Passive signal of the present invention closes the road device and comprises:
Antenna end receiving filter 301 is used for forming the antenna end duplexer with emission filter 304, and the one end is connected to antennal interface, and the other end is connected to power splitter 302;
The rack termination is received filter 303, is used for forming rack end duplexer with emission filter 304, and the one end is to receive (Rx) interface, and the other end is connected to cubicle interface;
When the professional and new CDMA 2000 EV-DO business of former CDMA 2000 1X are all worked CDMA2000 frequency range type 0 (Band Class 0), definition according to frequency range type 0, band downlink from the travelling carriage to the base station be 824MHz to 849MHz, the uplink band from the base station to the travelling carriage is that 869MHz is to 894MHz.At this moment, the passband of emission filter 304 is the bandwidth of whole band downlink, and the passband of antenna end receiving filter 301 and rack termination receipts filter 303 is the bandwidth of whole uplink band.Here, described filter all is a cavity body filter, its essence is a resonant cavity, has only the electromagnetic wave of frequency in its passband could produce resonance therein, even and the electromagnetic wave of frequency outside its passband be input in this resonant cavity and also can be attenuated very soon.
Outdoor antenna feeder installation is a transceiver, at one time both as transmitting antenna also as reception antenna.Therefore, existing the transmitting of the signal that moves on the line between apparatus of the present invention and the outdoor antenna feeder installation also has received signal.The antenna end duplexer of being made up of antenna end receiving filter 301 and emission filter 304 is divided into the signal that moves on the line between apparatus of the present invention and the outdoor antenna feeder installation received signal and transmits.In fact, the existing electromagnetic wave that transmits that is input to antenna end receiving filter 301 also has the electromagnetic wave of received signal, but because the passband of antenna end receiving filter 301 only is the uplink band of corresponding received signal, therefore can be in antenna end receiving filter 301 resonance have only received signal, and transmit very fast decay.Equally, can be in emission filter 304 only the transmitting of resonance, received signal is with very fast decay.
The signal that moves on the line between apparatus of the present invention and the indoor rack can be that only to transmit also can be that existing transmitting also has received signal.If only transmit, at this moment do not need signal is carried out duplex at the rack end, then the input of rack termination receipts filter 303 connects load, and its effect also only is equivalent to a load.If existing transmitting also has received signal, then the rack end duplexer of being made up of rack termination receipts filter 303 and emission filter 304 is divided into received signal with the signal that moves on the line between apparatus of the present invention and the indoor rack and transmits.At this moment, the input of filter 303 is received in a road of power splitter 302 output as the rack termination.Duplexer with antenna end is the same, receives in the filter 303 in the rack termination and has only received signal can produce resonance, and transmit very fast decay; In emission filter 304, only transmitting to produce resonance, and received signal is with very fast decay.
Therefore, the signal flow of received signal is to being: outdoor antenna feeder installation, antenna end receiving filter 301, power splitter 302, rack termination are received filter 303, indoor rack.The signal flow that transmits is to being: indoor rack, emission filter 304, outdoor antenna feeder installation.Wherein when move on the line between apparatus of the present invention and the rack only transmit the time, received signal is received filter 303 without the rack termination.
Because in apparatus of the present invention, the duplexer of the duplexer of antenna end and rack end is shared emission filter that is to say between the transmission channel of rack and antenna and has only a meeting to cause the device that inserts loss.Simultaneously, under the situation of the finite volume system of signal being closed the road device, adopt the structure of apparatus of the present invention to do the volume of emission filter bigger, thereby under the constant situation of chamber number, make the corresponding increase of volume of each cavity of emission filter.And the big more filter of cavity, it is just more little that it inserts loss.Therefore the insertion loss of apparatus of the present invention has had bigger reduction with respect to the insertion loss of broadband Hybrid Combiner.In actual applications, can be according to inserting the volume requirement that loss and signal close the road device, by cavity numbers that changes emission filter and the value that cavity size realizes concrete insertion loss.For example, when the cavity number of emission filter is 4, each cavity is of a size of 50mm * 50mm * 60mm, the ratio of the energy of this moment its energy stored and consumption, promptly the Q value is 4500, passband is whole transmit frequency band, it is 30dB to the requirement of base station system that CDMA 2000 standards are satisfied in the inhibition that receives frequency range, and the whole road device size of closing is about 160mm * 200mm * 55mm, and be 0.4dB to the insertion loss that transmits this moment.In order to reach littler insertion loss, cavity size can be become big, close the road device volume accordingly and will become big.If to the requirement of inserting loss is not so high, the cavity size of emission filter can be diminished and the chamber number becomes many, can obtain like this receiving the bigger inhibition of frequency range.For example adopt 5 cavitys, the Q value is 3800, and the band that can reach 50dB suppresses outward, and this moment, near 1.5dB, passband still was whole transmit frequency band to the insertion loss that transmits.
Please refer to Fig. 4, Fig. 4 is the block diagram that active signal of the present invention closes the road device.Active signal of the present invention closes the road device and comprises:
Antenna end receiving filter 301 is used for forming the antenna end duplexer with emission filter 304, and the one end is connected to antennal interface, and the other end is connected to power splitter 302;
The rack termination is received filter 303, is used for forming rack end duplexer with emission filter 304, and the one end is input Rx, and the other end is connected to cubicle interface;
Low noise amplifier (Low Noise Amplifier:LNA) 405 is used to amplify received signal, improves receiving sensitivity, and the one end is connected to the output of receiving filter 301, and the other end is connected to the input of power splitter 302.
LNA is a kind of noise factor amplifier more much lower than base amplifier.It the time needs DC power supply in work it is powered, and the road device that closes why Here it is adds behind the LNA is called active signal and closes the road device.LNA is added between antenna end receiving filter and the power splitter, can reduces the noise factor of whole receive path, thereby improve receiving sensitivity.The concrete index that can improve is that the performance by LNA is determined.
In actual applications, if the passive road device that closes can satisfy requirement to sensitivity, then need not to adopt the active road device that closes; If the sensitivity to system has higher requirements, possess the ability of direct current supply simultaneously, then can under the situation of cost permission, adopt the active road device that closes.
Except increasing LNA, active signal of the present invention close road device and passive signal close the road device at signal flow to all corresponding identical aspect, filter property and the external interface.Therefore, when being used for actual CDMA 2000 1X base stations and CDMA 2000 EV-DO base station co-space feedback systems, passive signal closes the road device, and to close the road Unit Installation with active signal be the same.Below only closing the road device with passive signal is that example is illustrated.In following embodiment and accompanying drawing, all represent that with duplexing mixer signal provided by the present invention closes the road device.
The indoor rack of existing C DMA indoor rack in 2000 1X base stations and CDMA 2000 EV-DO base stations mainly contains two types: a kind of is that transceiver channel is shared, a kind of be transceiver channel independently.Accordingly, when constituting the base station co-space feedback system, there are four kinds of situations, are respectively two base stations:
1. former rack has emission/master to receive common-use tunnel and diversity reception passage, and new rack has emission/master to receive common-use tunnel and diversity reception passage;
2. former rack has transmission channel, main receive path and diversity reception passage, and new rack has emission/master to receive common-use tunnel and diversity reception passage;
3. former rack has emission/master to receive common-use tunnel and diversity reception passage, and new rack has transmission channel, main receive path and diversity reception passage;
4. former rack has transmission channel, main receive path and diversity reception passage, and new rack has transmission channel, main receive path and diversity reception passage.
Be example with two kinds of situations in above-mentioned four kinds of situations respectively below, illustrate and adopt passive composition and the operation principle of closing the base station co-space feedback system of road device realization of the present invention.
First kind of situation, the indoor rack in former base station and new base station all is that transceiver channel is shared.That is: former base station indoor set cabinet has two passages, is respectively that emission/master receives common-use tunnel and diversity reception passage; The indoor rack in new base station also has two passages, is respectively that emission/master receives common-use tunnel and diversity reception passage.
Please refer to Fig. 5, Fig. 5 adopts signal of the present invention to close the block diagram of the base station co-space feedback system of road device.This system comprises:
The indoor rack 504 of former base station indoor set cabinet 503 and new base station;
Outdoor antenna feeder installation 505 is used for the diversity reception antenna as the indoor rack 504 of emission/main reception antenna and new base station of former base station indoor set cabinet 503;
Outdoor antenna feeder installation 506 is used for as the emission/main reception antenna of the indoor rack 504 in new base station and the diversity reception antenna of former base station indoor set cabinet 503;
The structure of wherein duplexing mixer 501 and duplexing mixer 502 is the same; The structure of outdoor antenna feeder installation 505 and outdoor antenna feeder installation 506 is the same.
Former base station indoor set cabinet 503 is that transceiver channel is shared, and its external interface is: emission/master receives common-use tunnel; The diversity reception passage.Before adding the indoor rack in new base station, these two interfaces are connected respectively on outdoor antenna feeder installation 505 and the outdoor antenna feeder installation 506, and wherein outdoor antenna feeder installation 505 is emission/main reception antennas, and outdoor antenna feeder installation 506 is diversity reception antennas.
The indoor rack 504 in initiate new base station is that transceiver channel is shared, and its external interface is: emission/master receives common-use tunnel; The diversity reception passage.
Adding the indoor rack in new base station, constitute former base station and new base station co-space feedback system after, the antennal interface of duplexing mixer 501 and duplexing mixer 502 is received respectively on two antennas of former outdoor antenna feeder installation; The RxD interface of duplex mixer 501 is connected to the diversity reception passage of the indoor rack 504 in new base station; The RxM interface of duplex mixer 501 is connected to the Rx interface of duplexing mixer 501; Emission/master that the indoor cubicle interface of duplex mixer 501 is connected to former base station indoor set cabinet 503 receives common-use tunnel; The RxD interface of duplex mixer 502 is connected to the diversity reception passage of former base station indoor set cabinet 503; The RxM interface of duplex mixer 502 is connected to the Rx interface of duplexing mixer 502; Emission/master that the indoor cubicle interface of duplex mixer 502 is connected to the indoor rack 504 in new base station receives common-use tunnel.
After carrying out above-described connection, outdoor antenna feeder installation 505 is as the emission/main reception antenna of former base station indoor set cabinet; Outdoor antenna feeder installation 506 is as the emission/main reception antenna of the indoor rack in new base station; Two base stations are respectively with emission/main reception antenna of the other side diversity reception antenna as oneself.
At first, compare with the base station co-space feedback system that adopts the broadband to close the road scheme, this system does not use the broadband Hybrid Combiner, therefore avoided the broadband Hybrid Combiner intrinsic 3dB insertion loss.Secondly, compare with the base station co-space feedback system that adopts narrow-band filtering to close the road scheme, the road device that closes of the present invention does not need extra Signal Separation and merges module, so the insertion loss of road scheme integral body is closed in the insertion loss of its integral body less than narrow-band filtering.At last, close in the device of road of the present invention, the passband of emission filter is whole band downlink, the passband of receiving filter is whole uplink band, therefore the road device that closes of the present invention can be operated in whole working frequency range, does not need because the change of base station carrier frequency retunes the road device that closes of the present invention.
Second kind of situation, former base station be transceiver channel independently, that is: former base station indoor set cabinet has three passages, is respectively transmission channel, main receive path and diversity reception passage; The indoor rack in new base station is that transceiver channel is shared, that is: the indoor rack in new base station has two passages, is respectively that emission/master receives common-use tunnel and diversity reception passage.
Please refer to Fig. 6, Fig. 6 adopts signal of the present invention to close the block diagram of the base station co-space feedback system of road device.This system comprises:
The indoor rack 504 of former base station indoor set cabinet 603 and new base station;
Outdoor antenna feeder installation 505 is used for the diversity reception antenna as the indoor rack 504 of emission/main reception antenna and new base station of former base station indoor set cabinet 603;
Outdoor antenna feeder installation 506 is used for as the emission/main reception antenna of the indoor rack 504 in new base station and the diversity reception antenna of former base station indoor set cabinet 603;
The structure of wherein duplexing mixer 501 and duplexing mixer 502 is the same; The structure of outdoor antenna feeder installation 505 and outdoor antenna feeder installation 506 is the same.
Former base station indoor set cabinet 603 be transceiver channel independently, its external interface is: transmission channel, main receive path, diversity reception passage.Before adding the indoor rack in new base station, transmission channel and main receive path are connected on the outdoor antenna feeder installation 505 by duplexer, the diversity reception passage is linked on the outdoor antenna feeder installation 506, that is to say that outdoor antenna feeder installation 505 is emission/main reception antennas, and outdoor antenna feeder installation 506 is diversity reception antennas.
The indoor rack 504 in initiate new base station is that transceiver channel is shared, and its external interface is: emission/master receives common-use tunnel; The diversity reception passage.
Adding the indoor rack in new base station, constitute former base station and new base station co-space feedback system after, the Rx interface of duplexing mixer 501 connects load; The RxM interface of duplex mixer 501 is connected to the main receive path of former base station indoor set cabinet 603; The indoor cubicle interface of duplex mixer 501 is connected to the transmission channel of former base station indoor set cabinet 603; The RxD interface of duplex mixer 501 is connected to the diversity reception passage of the indoor rack 504 in new base station; The RxD interface of duplex mixer 502 is connected to the diversity reception passage of former base station indoor set cabinet 603; The RxM interface of duplex mixer 502 is connected to the Rx interface of duplexing mixer 502; Emission/master that the indoor cubicle interface of duplex mixer is connected to the indoor rack in new base station receives common-use tunnel.
Because it is that Rx interface connects load that the rack termination of duplexing mixer 501 is received the input of filter, so the duplexer of rack end is equivalent to an emission filter, its transmitting for former base station indoor set cabinet that transmit.
In above two kinds of situations, in general, former base station is CDMA 2000 1X base stations, and new base station is CDMA 2000 EV-DO base stations.But, from top description as can be seen, adopt signal provided by the present invention to close the road device, be not limited to the indoor rack of CDMA 2000 EV-DO base stations is linked into the outdoor antenna feeder installation of existing CDMA 2000 1X base stations, as long as the signalling channel of the indoor rack of former base station and new base station meets in described four kinds of situations any one.That is to say, adopt signal provided by the present invention to close the outdoor antenna feeder installation that the road device also can be linked into the indoor rack of another CDMA 2000 1X base stations existing C DMA 2000 1X base stations, the indoor rack of a CDMA 2000EV-DO base station can also be linked into the outdoor antenna feeder installation of another CDMA 2000 EV-DO base stations, perhaps the indoor rack of CDMA 2000 1X base stations be linked into the outdoor antenna feeder installation of original CDMA 2000 EV-DO base stations.Even, if change band downlink and uplink band that the passband of emission filter and receiving filter in the duplexing mixer is respectively GSM, and the signalling channel of indoor rack is identical with indoor rack signalling channel described in above two situations, signal so provided by the present invention closes the road device and can also be used for two signals between some configuration GSM base station down and close the road, the base station co-space feedback system of formation GSM.
Below being linked into the existing CDMA2000 1X base station of five classes with the indoor rack with CDMA 2000 EV-DO respectively is that example further specifies and adopts signal provided by the invention to close the base station co-space feedback system that the road device is constituted.Wherein, Fig. 7 is three embodiment of corresponding the above first kind of situation to Fig. 9; Figure 10 and Figure 11 are two embodiment of corresponding the above second kind of situation.
Please refer to Fig. 7, Fig. 7 adopts signal of the present invention to close the CDMA 2000 1X base stations of road device and the block diagram of CDMA 2000 EV-DO base station co-space feedback systems.
In Fig. 7, the indoor rack 703 in former CDMA 2000 1X base stations is that transceiver channel is shared, and its external interface receives common-use tunnel and diversity reception passage for emission/master.The new indoor rack 704 of CDMA 2000EV-DO that inserts has same interface.All there are two duplexers two rack inside, the terminal of closing of one of them duplexer connects emission/master's reception common-use tunnel, as the duplex of emission/main received signal, two interfaces of the branch terminal of this duplexer further connect base station master's received signal and base station transmit signals.The terminal of closing of another one duplexer connects the diversity reception passage, and the emission interface of branch terminal connects load, and receiving interface connects the base station diversity received signal, because emission interface connects load, therefore only is equivalent to a receiving filter.
Please refer to Fig. 8, Fig. 8 adopts signal of the present invention to close the CDMA 2000 1X base stations of road device and the block diagram of CDMA 2000 EV-DO base station co-space feedback systems.
The base station co-space feedback system difference of Fig. 8 and Fig. 7 is that the diversity reception passage of the indoor rack 803 in CDMA 2000 1X base stations among Fig. 8 is linked a receiving filter in rack inside, and receiving filter further connects the base station diversity received signal; And indoor rack 703 its diversity reception passages in the CDMA 2000 1X base stations among Fig. 7 are linked a duplexer in rack inside, but in fact, the emission interface of the duplexer that indoor rack 703 diversity reception passages are connected connects load, and its effect just is equivalent to a receiving filter.
Please refer to Fig. 9, Fig. 9 adopts signal of the present invention to close the CDMA 2000 1X base stations of road device and the block diagram of CDMA 2000 EV-DO base station co-space feedback systems.
The base station co-space feedback system difference of Fig. 9 and Fig. 8 is that indoor rack 803 its carrier numbers in the CDMA 2000 1X base stations among Fig. 8 are 1, and indoor rack 903 its carrier numbers in the CDMA 2000 1X base stations among Fig. 9 are 2.That is to say that in Fig. 9, the indoor rack 903 in CDMA 2000 1X base stations has two working frequency points.Therefore, the indoor rack 903 in CDMA 2000 1X base stations comprises three broadband Hybrid Combiners in Fig. 9.Two interfaces of the branch terminal of duplexer are connected respectively to first in the indoor rack 903, the second broadband Hybrid Combiner close terminal, receiving filter is connected to the terminal of closing of the 3rd broadband Hybrid Combiner, two interfaces of the branch terminal of the first broadband Hybrid Combiner connect the main received signal of the base station first carrier and second carrier wave respectively, two interfaces of the branch terminal of the second broadband Hybrid Combiner connect transmitting of the base station first carrier and second carrier wave respectively, and two interfaces of the branch terminal of the 3rd broadband Hybrid Combiner connect the diversity reception signal of the base station first carrier and second carrier wave respectively.It is pointed out that these broadband Hybrid Combiners are included in indoor rack 903 inside, CDMA 2000 1X base stations, do not relate to the road device that closes of the present invention.
Please refer to Figure 10, Figure 10 adopts signal of the present invention to close the CDMA 2000 1X base stations of road device and the block diagram of CDMA 2000 EV-DO base station co-space feedback systems.
Among Figure 10, the indoor rack 1003 of former CDMA 2000 1X has three passages, these three passages are linked three filters respectively in rack inside, wherein the passband of emission filter is a band downlink, and the passband of main receiving filter and diversity reception filter is a uplink band.Transmission channel is connected to emission filter, and emission filter further connects base station transmit signals; Main receive path is connected to main receiving filter, and main receiving filter further connects base station master's received signal; The diversity reception passage is connected to the diversity reception filter, and the diversity reception filter further connects the base station diversity received signal.
Please refer to Figure 11, Figure 11 is the block diagram when adopting signal of the present invention to close the CDMA 2000 1X base stations of road device and CDMA 2000 EV-DO base station co-space feedback systems.
The base station co-space feedback system difference of Figure 11 and Figure 10 is that indoor rack 1003 its carrier numbers in the CDMA 20001X base station among Figure 10 are 1, and indoor rack 1103 its carrier numbers in the CDMA 2000 1X base stations among Figure 11 are 2.That is to say that in Figure 11, the indoor rack 1103 in CDMA 2000 1X base stations has two working frequency points.Therefore, the indoor rack 1103 in CDMA 2000 1X base stations comprises three broadband Hybrid Combiners in Figure 11.Emission filter, main receiving filter and diversity reception filter further are connected respectively to the terminal of closing of first, second and the 3rd broadband Hybrid Combiner, two interfaces of the branch terminal of the first broadband Hybrid Combiner connect the main received signal of the base station first carrier and second carrier wave respectively, two interfaces of the branch terminal of the second broadband Hybrid Combiner connect transmitting of the base station first carrier and second carrier wave respectively, and two interfaces of the branch terminal of the 3rd broadband Hybrid Combiner connect the diversity reception signal of the base station first carrier and second carrier wave respectively.It is pointed out that these broadband Hybrid Combiners are included in indoor rack 1103 inside, CDMA 2000 1X base stations, do not relate to the road device that closes of the present invention.
By the embodiment of above five CDMA 2000 1X base stations and CDMA 2000 EV-DO base station co-space feedback systems as can be seen, utilize the road device that closes of the present invention, the indoor rack of CDMA 2000 EV-DO base stations can be linked in the multiple existing C DMA 2000 1X base stations, realize that antenna feeder is shared.It is pointed out that in above five embodiment, only the difference configuration of CDMA 2000 1X base stations indoor rack indoor set cabinet is given an example.In the reality, the indoor rack in CDMA 2000 EV-DO base stations also can have various configurations, comprises the variation of external interface and sector-carrier number.
In a word, the above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (18)
1. a signal closes the road device, it is characterized in that, this device comprises:
Emission filter, form the antenna end duplexer with the antenna end receiving filter, receive filter with the rack termination and form rack end duplexer, the input of described emission filter is connected to the cubicle interface of this device, and output is connected to the antennal interface of this device;
The antenna end receiving filter is formed the antenna end duplexer with emission filter, and the input of described antenna end receiving filter is connected to the antennal interface of this device, and output is connected to the input of power splitter;
The rack termination is received filter, forms rack end duplexer with emission filter, and the input of described rack termination receipts filter is connected to the reception input interface of this device, and output is connected to the cubicle interface of this device;
Power splitter, be used for the output signal of antenna end receiving filter is divided into the mutually the same signal of two-way, the input of described power splitter is connected to the output of antenna end receiving filter, and two outputs are connected respectively to the diversity reception output interface and the main output interface that receives of this device.
2. signal according to claim 1 closes the road device, it is characterized in that, further comprises between antenna end receiving filter and power splitter:
Low noise amplifier is used for the output of antenna end receiving filter is amplified, and the input of described low noise amplifier is connected to the output of antenna end receiving filter, and output is connected to the input of power splitter.
3. base station co-space feedback system, comprise have emission/master receive common-use tunnel and diversity reception passage the first indoor rack, have the second indoor rack, first outdoor antenna feeder installation, second outdoor antenna feeder installation of emission/master's reception common-use tunnel and diversity reception passage, it is characterized in that, comprise that also first signal closes the road device and secondary signal is closed the road device, each signal closes the road device and comprises:
Emission filter, form the antenna end duplexer with the antenna end receiving filter, receive filter with the rack termination and form rack end duplexer, the input of described emission filter is connected to the cubicle interface of this device, and output is connected to the antennal interface of this device;
The antenna end receiving filter is formed the antenna end duplexer with emission filter, and the input of described antenna end receiving filter is connected to the antennal interface of this device, and output is connected to the input of power splitter;
The rack termination is received filter, forms rack end duplexer with emission filter, and the input of described rack termination receipts filter is connected to the reception input interface of this device, and output is connected to the cubicle interface of this device;
Power splitter, be used for the output signal of antenna end receiving filter is divided into the mutually the same signal of two-way, the input of described power splitter is connected to the output of antenna end receiving filter, and two outputs are connected respectively to the diversity reception output interface and the main output interface that receives of this device;
In the co-space feedback system of described base station:
The emission of the first indoor rack and the second indoor rack/master receives common-use tunnel and is connected respectively to first signal and closes the cubicle interface that road device and secondary signal are closed the road device; The diversity reception passage of the first indoor rack and the second indoor rack is connected respectively to secondary signal and closes the diversity reception output interface that road device and first signal close the road device;
First signal closes that road device and secondary signal close the road device, and the main output interface that receives is connected respectively to first signal and closes the receiving interface that road device and secondary signal are closed the road device; First signal closes the antennal interface that road device and secondary signal close the road device and is connected respectively to first outdoor antenna feeder installation and second outdoor antenna feeder installation.
4. base station according to claim 3 co-space feedback system is characterized in that, closes between the antenna end receiving filter of road device and the power splitter at each signal further to comprise:
Low noise amplifier is used for the output of antenna end receiving filter is amplified, and the input of described low noise amplifier is connected to the output of antenna end receiving filter, and output is connected to the input of power splitter.
5. according to claim 3 or 4 described base station co-space feedback systems, it is characterized in that, described indoor rack with emission/master's reception common-use tunnel and diversity reception passage comprises first duplexer and second duplexer at least, emission/master receives the terminal of closing that common-use tunnel is connected to first duplexer, and two interfaces of the branch terminal of first duplexer further connect base station master's received signal and base station transmit signals; The diversity reception passage is connected to the terminal of closing of second duplexer, and the emission interface of the branch terminal of second duplexer connects load, and the receiving interface of the branch terminal of second duplexer connects the base station diversity received signal.
6. according to claim 3 or 4 described base station co-space feedback systems, it is characterized in that, described indoor rack with emission/master's reception common-use tunnel and diversity reception passage comprises duplexer and receiving filter at least, emission/master receives the terminal of closing that common-use tunnel is connected to duplexer, and two interfaces of the branch terminal of duplexer further connect base station master's received signal and base station transmit signals; The diversity reception passage is connected to receiving filter, and receiving filter further connects the base station diversity received signal.
7. base station according to claim 6 co-space feedback system, it is characterized in that, described indoor rack with emission/master's reception common-use tunnel and diversity reception passage further comprises first, second, the 3rd broadband Hybrid Combiner, described base station master's received signal and base station transmit signals are connected respectively to first, the second broadband Hybrid Combiner close terminal, described base station diversity received signal is connected to the terminal of closing of the 3rd broadband Hybrid Combiner, two interfaces of the branch terminal of the first broadband Hybrid Combiner connect the main received signal of the base station first carrier and second carrier wave respectively, two interfaces of the branch terminal of the second broadband Hybrid Combiner connect transmitting of the base station first carrier and second carrier wave respectively, and two interfaces of the branch terminal of the 3rd broadband Hybrid Combiner connect the diversity reception signal of the base station first carrier and second carrier wave respectively.
8. base station co-space feedback system, comprise and have transmission channel, the first indoor rack of main receive path and diversity reception passage, have the second indoor rack, first outdoor antenna feeder installation, second outdoor antenna feeder installation that emission/master receives common-use tunnel and diversity reception passage, it is characterized in that, comprise that also first signal closes the road device and secondary signal is closed the road device, each signal closes the road device and comprises:
Emission filter, form the antenna end duplexer with the antenna end receiving filter, receive filter with the rack termination and form rack end duplexer, the input of described emission filter is connected to the cubicle interface of this device, and output is connected to the antennal interface of this device;
The antenna end receiving filter is formed the antenna end duplexer with emission filter, and the input of described antenna end receiving filter is connected to the antennal interface of this device, and output is connected to the input of power splitter;
The rack termination is received filter, forms rack end duplexer with emission filter, and the input of described rack termination receipts filter is connected to the reception input interface of this device, and output is connected to the cubicle interface of this device;
Power splitter, be used for the output signal of antenna end receiving filter is divided into the mutually the same signal of two-way, the input of described power splitter is connected to the output of antenna end receiving filter, and two outputs are connected respectively to the diversity reception output interface and the main output interface that receives of this device;
In the co-space feedback system of described base station:
The transmission channel of the first indoor rack is connected to the cubicle interface that first signal closes the road device; The main receive path of the first indoor rack is connected to the main output interface that receives that first signal closes the road device; The emission of the second indoor rack/master receives common-use tunnel and is connected to the cubicle interface that secondary signal is closed the road device; The diversity reception passage of the first indoor rack and the second indoor rack is connected respectively to secondary signal and closes the diversity reception output interface that road device and first signal close the road device;
The receiving interface that first signal closes the road device connects load; The main output interface that receives that secondary signal is closed the road device is connected to the receiving interface that secondary signal is closed the road device; First signal closes the antennal interface that road device and secondary signal close the road device and is connected respectively to first outdoor antenna feeder installation and second outdoor antenna feeder installation.
9. base station according to claim 8 co-space feedback system is characterized in that, closes between the antenna end receiving filter of road device and the power splitter at each signal further to comprise:
Low noise amplifier is used for the output of antenna end receiving filter is amplified, and the input of described low noise amplifier is connected to the output of antenna end receiving filter, and output is connected to the input of power splitter.
10. according to Claim 8 or 9 described base station co-space feedback systems, it is characterized in that, the described first indoor rack with transmission channel, main receive path and diversity reception passage comprises emission filter, main receiving filter and diversity reception filter at least, transmission channel is connected to the emission filter in the described first indoor rack, and the emission filter in the described first indoor rack further connects base station transmit signals; Main receive path is connected to main receiving filter, and main receiving filter further connects base station master's received signal; The diversity reception passage is connected to the diversity reception filter, and the diversity reception filter further connects the base station diversity received signal.
11. base station according to claim 10 co-space feedback system, it is characterized in that, described have a transmission channel, the first indoor rack inside of main receive path and diversity reception passage, further comprise first, the second and the 3rd broadband Hybrid Combiner, described base station transmit signals, base station master's received signal and base station diversity received signal further are connected respectively to first, the second and the 3rd broadband Hybrid Combiner close terminal, two interfaces of the branch terminal of the first broadband Hybrid Combiner connect the main received signal of the base station first carrier and second carrier wave respectively, two interfaces of the branch terminal of the second broadband Hybrid Combiner connect transmitting of the base station first carrier and second carrier wave respectively, and two interfaces of the branch terminal of the 3rd broadband Hybrid Combiner connect the diversity reception signal of the base station first carrier and second carrier wave respectively.
12. according to Claim 8 or 9 described base station co-space feedback systems, it is characterized in that, the described second indoor rack with emission/master's reception common-use tunnel and diversity reception passage comprises first duplexer and second duplexer at least, emission/master receives the terminal of closing that common-use tunnel is connected to first duplexer, and two interfaces of the branch terminal of first duplexer further connect base station master's received signal and base station transmit signals; The diversity reception passage is connected to the terminal of closing of second duplexer, and the emission interface of the branch terminal of second duplexer connects load, and the receiving interface of the branch terminal of second duplexer connects the base station diversity received signal.
13. according to Claim 8 or 9 described base station co-space feedback systems, it is characterized in that, the described second indoor rack with emission/master's reception common-use tunnel and diversity reception passage comprises duplexer and receiving filter at least, emission/master receives the terminal of closing that common-use tunnel is connected to duplexer, and two interfaces of the branch terminal of duplexer further connect base station master's received signal and base station transmit signals; The diversity reception passage is connected to receiving filter, and receiving filter further connects the base station diversity received signal.
14. base station according to claim 13 co-space feedback system, it is characterized in that, the described second indoor rack with emission/master's reception common-use tunnel and diversity reception passage further comprises first, second, the 3rd broadband Hybrid Combiner, base station master's received signal and base station transmit signals are connected respectively to first, the second broadband Hybrid Combiner close terminal, the base station diversity received signal is connected to the terminal of closing of the 3rd broadband Hybrid Combiner, two interfaces of the branch terminal of the first broadband Hybrid Combiner connect the main received signal of the base station first carrier and second carrier wave respectively, two interfaces of the branch terminal of the second broadband Hybrid Combiner connect transmitting of the base station first carrier and second carrier wave respectively, and two interfaces of the branch terminal of the 3rd broadband Hybrid Combiner connect the diversity reception signal of the base station first carrier and second carrier wave respectively.
15. base station co-space feedback system, comprise and have transmission channel, the first indoor rack of main receive path and diversity reception passage, have the second indoor rack, first outdoor antenna feeder installation, second outdoor antenna feeder installation of transmission channel, main receive path and diversity reception passage, it is characterized in that, comprise that also first signal closes the road device and secondary signal is closed the road device, each signal closes the road device and comprises:
Emission filter, form the antenna end duplexer with the antenna end receiving filter, receive filter with the rack termination and form rack end duplexer, the input of described emission filter is connected to the cubicle interface of this device, and output is connected to the antennal interface of this device;
The antenna end receiving filter is formed the antenna end duplexer with emission filter, and the input of described antenna end receiving filter is connected to the antennal interface of this device, and output is connected to the input of power splitter;
The rack termination is received filter, forms rack end duplexer with emission filter, and the input of described rack termination receipts filter is connected to the reception input interface of this device, and output is connected to the cubicle interface of this device;
Power splitter, be used for the output signal of antenna end receiving filter is divided into the mutually the same signal of two-way, the input of described power splitter is connected to the output of antenna end receiving filter, and two outputs are connected respectively to the diversity reception output interface and the main output interface that receives of this device;
In the co-space feedback system of described base station:
The transmission channel of the first indoor rack and the second indoor rack is connected respectively to first signal and closes the cubicle interface that road device and secondary signal are closed the road device; The main receive path of the first indoor rack and the second indoor rack is connected respectively to first signal and closes the main output interface that receives that road device and secondary signal are closed the road device; The diversity reception passage of the first indoor rack and the second indoor rack is connected respectively to secondary signal and closes the diversity reception output interface that road device and first signal close the road device;
First signal closes the receiving interface that road device and secondary signal close the road device and connects load respectively; First signal closes the antennal interface that road device and secondary signal close the road device and is connected respectively to first outdoor antenna feeder installation and second outdoor antenna feeder installation.
16. base station according to claim 15 co-space feedback system is characterized in that, closes between the antenna end receiving filter of road device and the power splitter at each signal further to comprise:
Low noise amplifier is used for the output of antenna end receiving filter is amplified, and the input of described low noise amplifier is connected to the output of antenna end receiving filter, and output is connected to the input of power splitter.
17. according to claim 15 or 16 described base station co-space feedback systems, it is characterized in that, the described first indoor rack with transmission channel, main receive path and diversity reception passage comprises emission filter, main receiving filter and diversity reception filter at least, transmission channel is connected to the emission filter in the described first indoor rack, and the emission filter in the described first indoor rack further connects base station transmit signals; Main receive path is connected to main receiving filter, and main receiving filter further connects base station master's received signal; The diversity reception passage is connected to the diversity reception filter, and the diversity reception filter further connects the base station diversity received signal.
18. base station according to claim 17 co-space feedback system, it is characterized in that, described have a transmission channel, the first indoor rack inside of main receive path and diversity reception passage, further comprise first, the second and the 3rd broadband Hybrid Combiner, emission filter in the described first indoor rack, main receiving filter and diversity reception filter further are connected respectively to first, the second and the 3rd broadband Hybrid Combiner close terminal, two interfaces of the branch terminal of the first broadband Hybrid Combiner connect the main received signal of the base station first carrier and second carrier wave respectively, two interfaces of the branch terminal of the second broadband Hybrid Combiner connect transmitting of the base station first carrier and second carrier wave respectively, and two interfaces of the branch terminal of the 3rd broadband Hybrid Combiner connect the diversity reception signal of the base station first carrier and second carrier wave respectively.
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| CNB2005101145174A CN100388825C (en) | 2005-10-24 | 2005-10-24 | Signal loop device and base-station common antenna-feedback system using same |
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| CNB2005101145174A CN100388825C (en) | 2005-10-24 | 2005-10-24 | Signal loop device and base-station common antenna-feedback system using same |
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| CN100388825C true CN100388825C (en) | 2008-05-14 |
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| CN101034922B (en) * | 2007-04-19 | 2010-07-07 | 华为技术有限公司 | Signal mixing method, device and same-frequency band and common antenna feedback system for different systems |
| CN101345931B (en) * | 2008-08-05 | 2012-04-04 | 华为技术有限公司 | Antenna feeder sharing apparatus, system and method |
| CN106911355B (en) * | 2017-03-03 | 2019-06-18 | 上海华为技术有限公司 | A kind of signal transmitting apparatus, signal transmission system and method |
| CN109286705A (en) * | 2018-09-30 | 2019-01-29 | 维沃移动通信有限公司 | A kind of terminal device |
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| CN1066307C (en) * | 1994-07-25 | 2001-05-23 | 冲电气工业株式会社 | Output power controlling circuit and antenna common use device of moving communicating device |
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| EP1311063A2 (en) * | 2001-11-12 | 2003-05-14 | Matsushita Electric Industrial Co., Ltd. | Diplexer, and high-frequency switch and antenna duplexer using the same |
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| CN1066307C (en) * | 1994-07-25 | 2001-05-23 | 冲电气工业株式会社 | Output power controlling circuit and antenna common use device of moving communicating device |
| WO2001035684A2 (en) * | 1999-11-08 | 2001-05-17 | Qualcomm Incorporated | Non-bandlimiting antenna sharing method and apparatus for base stations |
| CN1411299A (en) * | 2001-09-29 | 2003-04-16 | 华为技术有限公司 | Base station receiver and transmitter radio frequency front end |
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