CN200980075Y - A SCDMA microwave repeater and straight receiver - Google Patents
A SCDMA microwave repeater and straight receiver Download PDFInfo
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- CN200980075Y CN200980075Y CNU2006201193017U CN200620119301U CN200980075Y CN 200980075 Y CN200980075 Y CN 200980075Y CN U2006201193017 U CNU2006201193017 U CN U2006201193017U CN 200620119301 U CN200620119301 U CN 200620119301U CN 200980075 Y CN200980075 Y CN 200980075Y
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Abstract
The utility model provides a SCDMA microwave direct station and a direct device, wherein the direct station comprises a base station receiving-emitting signal machine sub system, a near terminal via a coupler connected with the base station receiving-emitting signal machine sub system, a near microwave antenna connected with the near terminal, at least one remote terminal, and a remote microwave antenna and a remote reemit antenna connected with the remote terminal. The near terminal processes filter, frequency-shift conversion and microwave amplification on received descending signal to be sent to the near microwave antenna, processes filter, microwave receiving reduction, and frequency-shift conversation on the ascending signal received from the near microwave antenna, to be sent to base station receiving-emitting signal machine sub system. The near microwave antenna and the remote microwave antenna are communicated via microwave. The remote terminal processes filter, frequency-shift conversation and microwave amplification on the ascending signal received from the remote reemit antenna, to be sent to the remote microwave antenna, and processes filter, microwave receiving reduction, and frequency-shift conversation on the descending signal received from the remote microwave antenna, to be sent to the remote reemit antenna.
Description
Technical field
The utility model relates to moving communicating field, and particularly Mobile communication direct base station relates to a kind of SCDMA microwave repeater and direct amplification machine specifically.
Background technology
Along with the communicate by letter raising of the level of consumption of people, people grow with each passing day to the demand of mobile communication, and are more and more higher to the requirement of mobile communication quality, and this just requires operator to improve the mobile radio communication quality, expands the coverage area.How to improve the mobile radio communication quality, expand the coverage area, become an important topic of each operator.
Because the mobile communication base station can be subjected to the influence of various objective factors such as landform, building to air-launched electromagnetic wave signal, can not cover each corner that the stream of people can arrive, as highway, conference centre, basement, airport, station, tunnel, subway, tourist district etc.In order to remedy this defective, can increase the number of base station, but the shortcoming of setting up the base station is: the construction base station costs an arm and a leg, the cycle is long; Increase operating cost of operator; Especially in the little area of telephone traffic, it is very unfavorable that competitive strength is improved in operator.
At present, can utilize this communication equipment with low cost of Mobile communication direct base station, solve the matter of great urgency of operator.The repeater is a kind of relaying product, is meant to play a kind of radio transmission transferring equipment that signal strengthens in the wireless communication transmissions process.The basic function of repeater is exactly a radiofrequency signal power intensifier.The repeater by pickoff signals in the existing overlay area of donor antenna,, is transmitted into the signal of filtering once more after power amplifier amplifies and treats the overlay area carrying out fabulous isolation with logical outer signal by band pass filter in down link.In the uplink path, the signal of the travelling carriage mobile phone in the overlay area is transmitted into corresponding base station with same working method after by up amplification link processing, thereby reaches the signal transmission of base station and mobile phone.
The use repeater mainly is because use repeater one is to guarantee the network coverage under the prerequisite that does not increase base station number as one of necessary means that realizes " low capacity, the big covering " target, the 2nd, and its cost is well below the micro cellular system that effect same is arranged.Advantages such as simple in structure, that investment is less and easy for installation have been compared with the base station, can be widely used in the blind area and the weak district that are difficult to cover, as various places such as market, hotel, airport, harbour, station, gymnasium, amusement hall, subway, tunnel, highway, islands, improve communication quality, solve problems such as call drop.
At SCDMA (Synchronous Code Division Multiple Access; S-CDMA) in the communication system, adopts the SCDMA wireless discharging-directly station at present, as shown in Figure 1, 2, be the operation principle schematic diagram of existing SCDMA wireless discharging-directly station.In addition, also adopt the SCDMA optical fiber repeater, shown in Fig. 3,4, be the operation principle schematic diagram of existing SCDMA optical fiber repeater.
Wherein, the principle of wireless discharging-directly station is that descending the amplification to mobile phone by the wireless receiving base station signal receives, otherwise, up by sending to the base station reception with wireless after the amplification of reception mobile phone signal, can save investment greatly by adopting this wireless discharging-directly station, solve that the base station covers and a kind of mode of having signal blind zone, but also there is following defective in SCDMA wireless discharging-directly station illustrated in figures 1 and 2:
The wireless receiving signal level require high RXL 〉=-65dBm, it is high that signal quality SNR (Signal-to-Noise Ratio, signal to noise ratio) requires;
2. because of wireless receiving, easily introduce and disturb, speech quality is poor;
3. in order to guarantee that there is good output the repeater, avoid system directly to swash, dual-mode antenna needs high insulation request;
4. consider system's transmitting-receiving insulation request, so the siting of station requires height, the owner coordinates difficulty;
5. adopt shift frequency in the band, need take extra frequency of SCDMA base station system and channel resource simultaneously;
6. system's transmitting-receiving is limited, is generally one and receives one, can not well look area of coverage requirement and adopt the flexible antenna coverage mode;
7. because adopt wireless receiving, entire system SNR is relatively poor, effectively covering radius less when weak (be signal can't guarantee speech quality);
8. single networking mode can't be realized the covering of large tracts of land zones of different.
Compare with wireless discharging-directly station, do not take office side's fiber resource though optical fiber repeater has, survey a little flexibly, equipment builds a station and open convenient and swiftly, integrated cost is lower than wireless discharging-directly station, also has the problems referred to above to a certain extent.
The utility model content
The purpose of this utility model is to provide a kind of SCDMA microwave repeater and direct amplification machine, to remedy the deficiencies in the prior art.
The utility model provides a kind of SCDMA microwave repeater, comprising: SCDMA BTS under CROS environment, through coupler near-end machine that is connected with this BTS under CROS environment and the near-end microwave antenna that is connected with the near-end machine, at least one remote termination and the remote microwave antenna and the far-end retransmitting antenna that are connected with this remote termination; Wherein,
The near-end machine is used for that the downstream signal that receives from BTS under CROS environment is carried out filtering, shift frequency conversion and microwave and amplifies, and is sent to the near-end microwave antenna; The upward signal that receives from the near-end microwave antenna is carried out filtering, reduction microwave receiving and the conversion of reduction shift frequency, be sent to BTS under CROS environment;
Described near-end microwave antenna and remote microwave antenna communicate by microwave;
Remote termination carries out filtering, shift frequency conversion and microwave to the upward signal that receives from the far-end retransmitting antenna and amplifies, and is sent to the remote microwave antenna; The downstream signal that receives from the remote microwave antenna is carried out filtering, reduction microwave receiving and the conversion of reduction shift frequency, be sent to the far-end retransmitting antenna.
Described near-end machine comprises: first filter, the near-end transmitting-receiving lock unit that is connected with first filter and near-end shift frequency unit, the near-end microwave transmitting and receiving unit that is connected with near-end shift frequency unit with near-end transmitting-receiving lock unit and receive and dispatch second filter that lock unit is connected with near-end microwave transmitting and receiving unit with near-end; Wherein,
First filter is used to receive the downstream signal that BTS under CROS environment sends through coupler, and this downstream signal is carried out filtering, delivers to near-end shift frequency unit by near-end transmitting-receiving lock unit then; Receive the upward signal that near-end shift frequency unit sends by near-end transmitting-receiving lock unit, and carry out being sent to BTS under CROS environment after the filtering;
Near-end shift frequency unit, the downstream signal after accepting filter carries out the shift frequency conversion, delivers to near-end microwave transmitting and receiving unit then; Receive the upward signal that near-end microwave transmitting and receiving unit sends, deliver to first filter after the shift frequency that the reduces conversion;
Near-end microwave transmitting and receiving unit after receiving the downstream signal after shift frequency is changed and carrying out the microwave amplification, is sent to second filter; Receive the upward signal that second filter transmits by near-end transmitting-receiving lock unit, reduce and deliver to near-end shift frequency unit behind the microwave receiving;
Second filter receives the downstream signal that near-end microwave transmitting and receiving unit transmits, and carries out being sent to the near-end microwave antenna after the filtering; Receive the upward signal that the near-end microwave antenna transmits, carry out being sent to near-end microwave transmitting and receiving unit after the filtering.
Described near-end machine also comprises the near-end monitoring unit, and this near-end monitoring unit is connected with near-end shift frequency unit, near-end microwave transmitting and receiving unit with described near-end transmitting-receiving lock unit, is used for the near-end machine is carried out overall monitor.
Described remote termination comprises: the 3rd filter, the far-end transmitting-receiving lock unit that is connected with the 3rd filter and far-end shift frequency unit, the remote microwave Transmit-Receive Unit that is connected with far-end shift frequency unit with far-end transmitting-receiving lock unit and receive and dispatch the 4th filter that lock unit is connected with the remote microwave Transmit-Receive Unit with far-end; Wherein,
The 3rd filter is used to receive the upward signal that the far-end retransmitting antenna sends, and this upward signal is carried out filtering, delivers to far-end shift frequency unit by far-end transmitting-receiving lock unit then; Receive the downstream signal that near-end shift frequency unit sends by the transmitting-receiving lock unit, and carry out being sent to the far-end retransmitting antenna after the filtering;
Far-end shift frequency unit, the upward signal after accepting filter carries out the shift frequency conversion, delivers to the remote microwave Transmit-Receive Unit then; Receive the downstream signal that the remote microwave Transmit-Receive Unit sends, deliver to the 3rd filter after the shift frequency that the reduces conversion;
The remote microwave Transmit-Receive Unit after receiving the upward signal after shift frequency is changed and carrying out the microwave amplification, is sent to the 4th filter; Receive the downstream signal that the 4th filter transmits by the transmitting-receiving lock unit, reduce and deliver to far-end shift frequency unit behind the microwave receiving;
The 4th filter is used to receive the upward signal that the remote microwave Transmit-Receive Unit transmits, and is sent to the remote microwave antenna; Receive the downstream signal that the remote microwave antenna transmits, carry out being sent to the remote microwave Transmit-Receive Unit after the filtering.
Described remote termination also comprises the remote monitoring unit, and this remote monitoring unit is connected with described far-end transmitting-receiving lock unit, far-end shift frequency unit, remote microwave Transmit-Receive Unit, and this remote termination is carried out overall monitor.
The utility model also provides a kind of SCDMA microwave direct amplification machine, comprising: the near-end machine reaches remote microwave antenna and the far-end retransmitting antenna that is connected with this remote termination with the near-end microwave antenna that is connected with the near-end machine, at least one remote termination; Wherein,
The near-end machine is used for that the downstream signal that receives from BTS under CROS environment is carried out filtering, shift frequency conversion and microwave and amplifies, and is sent to the near-end microwave antenna; The upward signal that receives from the near-end microwave antenna is carried out filtering, reduction microwave receiving and the conversion of reduction shift frequency, be sent to BTS under CROS environment;
Described near-end microwave antenna and remote microwave antenna communicate by microwave;
Remote termination carries out filtering, shift frequency conversion and microwave to the upward signal that receives from the far-end retransmitting antenna and amplifies, and is sent to the remote microwave antenna; The downstream signal that receives from the remote microwave antenna is carried out filtering, reduction microwave receiving and the conversion of reduction shift frequency, be sent to the far-end retransmitting antenna.
Described near-end machine comprises: first filter, the near-end transmitting-receiving lock unit that is connected with first filter and near-end shift frequency unit, the near-end microwave transmitting and receiving unit that is connected with near-end shift frequency unit with near-end transmitting-receiving lock unit and receive and dispatch second filter that lock unit is connected with near-end microwave transmitting and receiving unit with near-end; Wherein,
First filter is used to receive the downstream signal that BTS under CROS environment sends through coupler, and this downstream signal is carried out filtering, delivers to near-end shift frequency unit by near-end transmitting-receiving lock unit then; Receive the upward signal that near-end shift frequency unit sends by near-end transmitting-receiving lock unit, and carry out being sent to BTS under CROS environment after the filtering;
Near-end shift frequency unit, the downstream signal after accepting filter carries out the shift frequency conversion, delivers to near-end microwave transmitting and receiving unit then; Receive the upward signal that near-end microwave transmitting and receiving unit sends, deliver to the near-end filter after the shift frequency that the reduces conversion;
Near-end microwave transmitting and receiving unit after receiving the downstream signal after shift frequency is changed and carrying out the microwave amplification, is sent to second filter; Receive the upward signal that second filter transmits by near-end transmitting-receiving lock unit, reduce and deliver to near-end shift frequency unit behind the microwave receiving;
Second filter receives the downstream signal that near-end microwave transmitting and receiving unit transmits, and carries out being sent to the near-end microwave antenna after the filtering; Receive the upward signal that the near-end microwave antenna transmits, carry out being sent to near-end microwave transmitting and receiving unit after the filtering.
Described near-end machine also comprises the near-end monitoring unit, and this near-end monitoring unit is connected with near-end shift frequency unit, near-end microwave transmitting and receiving unit with described near-end transmitting-receiving lock unit, is used for the near-end machine is carried out overall monitor.
Described remote termination comprises: the 3rd filter, the far-end transmitting-receiving lock unit that is connected with the 3rd filter and far-end shift frequency unit, the remote microwave Transmit-Receive Unit that is connected with far-end shift frequency unit with far-end transmitting-receiving lock unit and receive and dispatch the 4th filter that lock unit is connected with the remote microwave Transmit-Receive Unit with far-end; Wherein,
The 3rd filter is used to receive the upward signal that the far-end retransmitting antenna sends, and this upward signal is carried out filtering, delivers to far-end shift frequency unit by far-end transmitting-receiving lock unit then; Receive the downstream signal that near-end shift frequency unit sends by the transmitting-receiving lock unit, and carry out being sent to the far-end retransmitting antenna after the filtering;
Far-end shift frequency unit, the upward signal after accepting filter carries out the shift frequency conversion, delivers to the remote microwave Transmit-Receive Unit then; Receive the downstream signal that the remote microwave Transmit-Receive Unit sends, deliver to the far-end filter after the shift frequency that the reduces conversion;
The remote microwave Transmit-Receive Unit after receiving the upward signal after shift frequency is changed and carrying out the microwave amplification, is sent to the 4th filter; Receive the downstream signal that the 4th filter transmits by the transmitting-receiving lock unit, reduce and deliver to far-end shift frequency unit behind the microwave receiving;
The 4th filter is used to receive the upward signal that the remote microwave Transmit-Receive Unit transmits, and is sent to the remote microwave antenna; Receive the downstream signal that the remote microwave antenna transmits, carry out being sent to the remote microwave Transmit-Receive Unit after the filtering.
Described remote termination also comprises the remote monitoring unit, and this remote monitoring unit is connected with described far-end transmitting-receiving lock unit, far-end shift frequency unit, remote microwave Transmit-Receive Unit, and this remote termination is carried out overall monitor.
The radio frequency operation frequency range of this SCDMA microwave direct amplification machine is 1785～1805MHz, and the working frequency range of microwave transmission is 1505～1525MHz.
Described near-end and remote microwave Transmit-Receive Unit adopt the 1.5G microwave to transmit.
Described far-end shift frequency unit and remote microwave Transmit-Receive Unit adopt the 1.5G microwave to transmit.
Described near-end machine includes power conversion unit and the mains switch that is connected with this power conversion unit with remote termination; Wherein,
Described power conversion unit is used for the alternating current of external world's input is converted to direct current;
In the near-end machine, described mains switch is connected with the near-end monitoring unit with described near-end transmitting-receiving lock unit, near-end shift frequency unit, near-end microwave transmitting and receiving unit respectively by power line;
In remote termination, described mains switch is connected with the remote monitoring unit with described far-end transmitting-receiving lock unit, far-end shift frequency unit, remote microwave Transmit-Receive Unit respectively by power line.
The beneficial effects of the utility model are:
1. the base station signal that directly is coupled, dead level and SNR requirement;
2. the base station signal that directly is coupled, the spectral purity height, speech quality can compare favourably with the base station;
3. system adopts microwave transmission, and system does not have the transmitting-receiving insulation request, has solved optical fiber simultaneously and can't put and lay the high problem of cost in place;
4. system does not have insulation request, and website is selected flexibly;
5. with the transparent amplification in base station, the sharing base channel resource does not take SCDMA base station system extra frequency and signal resource;
6. do not have insulated degree requirement, can adopt omnidirectional antenna and directional antenna (1 fan and many sectors) coverage mode flexibly according to the area of coverage;
7. adopt the 1.5G microwave transmission, entire system SNR is effective covering radius big when weak (be signal also can guarantee good speech quality) better;
8. can adopt a near-end machine of point-to-multipoint to drag a plurality of remote terminations according to the overlay area size, can realize the wide covering of large tracts of land zones of different.
Description of drawings
Fig. 1 is existing SCDMA wireless discharging-directly station work schematic diagram;
Fig. 2 is the wireless direct amplification machine structure principle chart of existing SCDMA;
Fig. 3 is existing SCDMA optical fiber repeater fundamental diagram;
Fig. 4 is existing SCDMA optical fiber direct amplification machine structure principle chart;
Fig. 5 is the SCDMA microwave repeater fundamental diagram of the utility model embodiment;
Fig. 6 is the SCDMA microwave direct amplification machine structure principle chart of the utility model embodiment;
Fig. 7 is the internal structure schematic diagram of the near-end machine of the utility model embodiment;
Fig. 8 is the internal structure schematic diagram of the remote termination of the utility model embodiment;
Fig. 9 A to Fig. 9 C is front view, vertical view and the end view of the near-end machine profile of the utility model embodiment;
Figure 10 A to Figure 10 C is front view, vertical view and the end view of the remote termination profile of the utility model embodiment;
Figure 10 D be the utility model embodiment remote termination install and fix the foot rest schematic diagram;
Figure 11 is the SCDMA microwave repeater fundamental diagram of another embodiment of the utility model.
Embodiment
With reference to accompanying drawing the utility model is elaborated.
Shown in Fig. 5,6, be the fundamental diagram of the SCDMA microwave repeater of the utility model embodiment.A kind of SCDMA microwave repeater in the present embodiment as shown in Figure 5, comprising:
SCDMA BTS under CROS environment BTS51, the coupler 52 that is connected with this BTS under CROS environment BTS51, the local feeder line that is connected with this coupler 52 and near-end machine 53, the near-end microwave antenna 54, remote termination 56 and the far-end retransmitting antenna 57 and the remote microwave antenna 55 that are connected with remote termination 56 that link to each other with near-end machine 53, when finishing near-end machine 53 and remote termination 56 interactive communications, carry out microwave transmission by near-end microwave antenna 54 and remote microwave antenna 55 between described near-end machine 53 and the remote termination 56; Wherein,
Near-end machine 53 is used for that the downstream signal that receives from BTS under CROS environment 51 is carried out filtering, shift frequency conversion and microwave and amplifies, and is sent to near-end microwave antenna 54; The upward signal that receives from near-end microwave antenna 54 is carried out filtering, reduction microwave receiving and the conversion of reduction shift frequency, be sent to BTS under CROS environment 51;
Described near-end microwave antenna 54 and remote microwave antenna 55 communicate by microwave; Wherein, near-end microwave antenna 54 receives the shift frequency conversion of near-end machine 53 transmissions and the downstream signal after the microwave amplification, and is sent to remote microwave antenna 55; Receive the shift frequency conversion of remote microwave antenna 55 transmissions and the upward signal after the microwave amplification, and be sent to near-end machine 53;
As shown in Figure 6, described near-end machine 53 comprises: the first filter BPF601, the transmitting-receiving lock unit 604 that is connected with the 3rd filter BPF601 and shift frequency unit 602, the microwave transmitting and receiving unit 603 that is connected with shift frequency unit 602 with described transmitting-receiving lock unit 604, and second filter 605 that is connected with microwave transmitting and receiving unit 603 with transmitting-receiving lock unit 604; Transmitting-receiving lock unit 604 is TDD (Time Division Duplex, a time division duplex) transmitting-receiving lock unit in the present embodiment;
Described remote termination 56 comprises: the 3rd filter BPF601 ', the transmitting-receiving lock unit 604 ' that is connected with the 3rd filter BPF601 ' and shift frequency unit 602 ', the microwave transmitting and receiving unit 603 ' that is connected with shift frequency unit 602 ' with described transmitting-receiving lock unit 604 ', and the 4th filter 605 ' that is connected with microwave transmitting and receiving unit 603 ' with transmitting-receiving lock unit 604 '; The transmitting-receiving lock unit is TDD (TimeDivision Duplex, a time division duplex) transmitting-receiving lock unit in the present embodiment.
Down link (base station is to travelling carriage 58, mobile phone)
Described SCDMA BTS under CROS environment BTS51 sends downlink radio-frequency signal, through coupler 52 input near-end machines 53, filtering radio frequency out of band signal in first filter 601 of near-end machine 53; Filtered signal is carried out the shift frequency conversion through the TDD of near-end machine 53 transmitting-receiving lock unit 604 input shift frequency unit 602, send into microwave transmitting and receiving unit 603 again and carry out the microwave amplification, then, with the microwave signal after shift frequency conversion and the microwave amplification after second filter 605 carries out filtering, be transported to remote microwave antenna 55 by near-end microwave antenna 54 microwaves, be sent to remote termination 56 again;
The descending microwave signal that remote microwave antenna 55 transmits is after the 4th filter 605 ' carries out filtering, microwave receiving reduces in the microwave transmitting and receiving unit 603 ' that is sent to described remote termination 56, then this downstream signal is sent to shift frequency unit 602 ' and reduces shift frequency conversion, and will reduce the downstream signal of microwave receiving and reduction shift frequency conversion and be sent to the 3rd filter BPF601 ' through TDD transmitting-receiving lock unit 604 ' and carry out filtering, launch by described retransmitting antenna 57 then.
Up link (travelling carriage 58, mobile phone are to the base station)
Described retransmitting antenna 57 receives upward signal, sends into remote termination 56, earlier filtering radio frequency out of band signal in the 3rd filter BPF601 ' of this remote termination 56; Filtered signal is sent to shift frequency unit 602 ' through TDD transmitting-receiving lock unit 604 ' carries out the shift frequency conversion, then this signal is sent into microwave transmitting and receiving unit 603 ' and carried out the microwave amplification, with the microwave signal after shift frequency conversion and the microwave amplification after the 4th filter 605 ' carries out filtering, be transported to near-end microwave antenna 54 by remote microwave antenna 55 microwaves, and then be sent to near-end machine 53;
The up microwave signal that near-end microwave antenna 54 transmits is after second filter 605 carries out filtering, microwave receiving reduces in the microwave transmitting and receiving unit 603 that is sent to described near-end machine 53, deliver to shift frequency unit 602 then and reduce shift frequency conversion, deliver to the first filter BPF601 through TDD transmitting-receiving lock unit 604 and carry out filtering, export SCDMA BTS under CROS environment BTS51 again to.
Be illustrated in figure 7 as the internal structure schematic diagram of the near-end machine of the utility model embodiment.Wherein, near-end machine 53 also comprises monitoring unit 608, this monitoring unit 608 is connected with shift frequency unit 602, microwave transmitting and receiving unit 603 with described TDD transmitting-receiving lock unit 604, is used for near-end machine 53 is carried out overall monitor, and this monitoring unit 608 can be long-range or the local monitor unit;
Also comprise power conversion unit 606 and connected mains switch 607, described mains switch 607 is connected with monitoring unit 608 with described TDD transmitting-receiving lock unit 604, shift frequency unit 602, microwave transmitting and receiving unit 603 respectively by power line.
Be illustrated in figure 8 as the internal structure schematic diagram of the remote termination of the utility model embodiment.Remote termination 56 also comprises monitoring unit 608 ', this monitoring unit 608 ' and described TDD transmitting-receiving lock unit 604 ' and shift frequency unit 602 ', microwave transmitting and receiving unit 603 ' are connected, be used for this remote termination 56 is carried out overall monitor, this monitoring unit 608 ' can be long-range or the local monitor unit;
Also comprise power conversion unit 606 ' and connected mains switch 607 ', described mains switch 607 ' is connected with monitoring unit 608 ' with described TDD transmitting-receiving lock unit 604 ', shift frequency unit 602 ', microwave transmitting and receiving unit 603 ' respectively by power line.
In the present embodiment, described mains switch 607,607 ' is opened the unit for sky; Power conversion unit 606,606 ' is converted to DC power supply with the external communication electricity, gives each part power supply of described near-end machine 53 and remote termination 56.
In the present embodiment, the first filter BPF601 of near-end machine 53 and remote termination 56, the 3rd filter 601 ', be used for filtering radio frequency out of band signal, the second filter BPF605 of near-end machine 53 and remote termination 56, the 4th filter 605 ', the incoherent interference of filtering, nonlinear properties; Its radio frequency (RF) input, output port adopt 50 Ω, SMA-50K joint.
TDD receives and dispatches lock unit 604,604 ', adopts high-speed synchronous switch (SPDT), is used to realize the transmission duplex of signal, and its RF input, output port are 50 Ω, SMA-50K joint;
Shift frequency unit 602,602 ' is used for the radiofrequency signal shift frequency to microwave 1.5G signal descending; Be used for microwave 1.5G signal reduction shift frequency to radiofrequency signal up.
Monitoring unit 608,608 ', be used for direct amplification machine is comprehensively monitored, comprising: AC and DC Power Supply Monitoring, gate inhibition's monitoring, gain-adjusted, gain supervision, power-monitoring, power adjustments, overpower alarm, excess temperature alarm, channel setting, fan monitoring etc.; Its control interface is: DB-15J; DB-9J; Connecting line is a winding displacement; RS-232 is controlled mouth;
The power emission and the reception of microwave signal are finished in microwave transmitting and receiving unit 603,603 '; Its RF input, output port are 50 Ω, SMA-50K joint; The DB-9J control interface, each pinout is as follows: Pin1:NC → sky; Pin2:GND → ground; Pin3:+12V → power supply; Pin4:NC → sky; Pin5:NC → sky; Pin6:max MONITOR → microwave transmitting power monitors; Pin7:max ALARM → microwave transmitting power alarm; Pin8:mix MONITOR → microwave receiving power-monitoring; Pin9:mix ALARM → microwave receiving power alarm;
Pin1:ATT1 1dB when unsettled (undamped, decay during ground connection); Pin2:ATT2 2dB when unsettled (undamped, decay during ground connection); Pin3:ATT4 4dB when unsettled (undamped, decay during ground connection); Pin4:ATT8 8dB when unsettled (undamped, decay during ground connection); Pin5:ATT16 16dB when unsettled (undamped, decay during ground connection); The control of Pin6:AL automatic electric-level (control voltage 0～5V, control voltage, during+3V, power amplifier output nominal power); Pin7:+5V is inner to be used, will not be external; The empty pin of Pin8:NC; Pin9:O/T overtemperature degree alarm (alarm of TTL high level); Pin10:P/M power output indication (when the power amplifier nominal power is exported, being 3.5V); The Pin11:ENA high-power switchgear enables (high level+5V closes power amplifier, and unsettled or low level is opened power amplifier); Pin12:O/P overpower alarm (alarm of TTL high level); Pin13:VSWR standing-wave ratio alarm (alarm of TTL high level); The indication of Pin14:T/M assembly temperature (0.053V/ ℃, 4.505V@85 ℃, below 0V@0 ℃); Pin15:GND ground connection is decayed during low level.
The technical indicator of the direct amplification machine in the present embodiment is as shown in table 1.
Shown in Fig. 7,8, on described near-end machine 53 and remote termination 56, also be provided with microwave signal interface A, A ', power interface B, B ', interfaces such as radio frequency interface C, C '.
Shown in Fig. 9 A to 9C, be front view, vertical view and the end view of the profile of near-end machine of the present utility model.Wherein, shown in Fig. 9 B,
Microwave signal interface A, i.e. port 905 is penetrated in microwave signal transmitting-receiving, is connected with near-end microwave antenna 54, and inner and described microwave transmitting and receiving unit 603 is connected, and is the 1.5G microwave, the N-F joint categories;
Mains switch 902 is opened unit 607 with described sky and is connected;
AC Power supply socket 903 is used to connect external 220V AC power;
Radio frequency interface C901 is connected with the coupler 52 of SCDMA base station, the inner filter 601 that connects.
In addition, shown in Fig. 9 A, also be provided with on this near-end machine and install and fix foot rest 907, keyhole 908 and earth terminal 909.Shown in Fig. 9 C, the bottom is provided with foot pad 910.
Shown in Figure 10 A to 10D, for profile front view, vertical view, the end view of the utility model remote termination 56 with install and fix the foot rest schematic diagram.Wherein, shown in Figure 10 B,
Table 1
| Project | Index | ||
| 1 | Working frequency range | 1785～1805MHz | |
| 2 | Mode of operation | TDD | |
| 3 | TDD synchronous error and time delay | ＜5uS | |
| 4 | Down link | The incoming signal level scope | 0～-30dBm |
| 5 | Maximum gain | Near-end machine: 60dB remote termination: 105dB | |
| 6 | Gain adjustment range | 62dB, near, each 31dB of remote termination | |
| 7 | Step-length is adjusted in gain | 1dB | |
| 8 | Peak power output | Near-end machine: 1W (+30dBm, microwave transmission) remote termination: 2W (+33dBm), 5W (+37dBm) optional | |
| 9 | Passband fluctuation | ＜3dBp-p | |
| 10 | The adjacent-channel power spurious emissions | ＜-27dBc@ ± 500KHz Offset＜-33dBc@ ± 1000KHz Offset and with far | |
| 11 | |||
| 12 | The double-tone intermodulation suppresses | The output of＜-27dBc@ nominal maximum power | |
| 13 | Band is outer to be suppressed | ＞40dBc@ departs from the working band left and right sides each 15MHz＞60dBc@ of sideband and departs from the working band left and right sides each 50MHz of sideband | |
| 14 | The far-end stray radiation | ＜-36dBm | |
| 15 | Up link | Noise factor | ＜5dB |
| 16 | Maximum gain | Remote termination: 120dB near-end machine: 20dB | |
| 17 | Gain adjustment range | 62dB, near, each 31dB of remote termination | |
| 18 | Step-length is adjusted in gain | 1dB | |
| 19 | Passband fluctuation | ＜3dBp-p | |
| 20 | Peak power output | Remote termination: 1W (+30dBm, microwave transmission) near-end machine :-30dBm | |
| 21 | The microwave transmission frequency | 1505～1525MHz | |
| 22 | Rf inputs mouth standing-wave ratio | ＜1.5∶1 | |
| 23 | The radio frequency interface type | N-F | |
| 24 | Operating voltage and power consumption | Near-end machine :-48V DC/1.5A max remote termination: AC220V/0.5A max. | |
| 25 | Operating temperature range | -20～+70℃ | |
| 26 | Operating humidity range | 0～90% no water-setting | |
AC Power supply socket 1003 is used to connect external 220V AC power, as the power supply unit of this remote termination 56;
The mains switch of remote termination 56 is in remote termination 56 casings, and is not shown.
Shown in Figure 10 A, this remote termination 56 also is provided with earth terminal 1007, shown in Figure 10 C,
Also be provided with foot pad 1006.
In the present embodiment, the size of near-end machine 53 and remote termination 56 is: 240 * 420 * 680mm, device housings all adopt the military products cast aluminium to constitute.Wherein,
Radio frequency interface C ' 1004: connect retransmitting antenna 57, link to each other with the input port of the filter 601 ' of remote termination 56; Radio frequency interface C901 connects the base station end, links to each other with the input port of the filter 601 of near-end machine 53, all adopts 50 Ω, N-50K joint; RS-232 control mouth is DB-9K;
Fixing foot rest: be used for fixing direct amplification machine on wall is warded off or on the foot rest.
In the present embodiment, location, site, repeater:
The long transmission distance of microwave repeater, the space visual range of near-end machine 53 and remote termination 56 can reach 8 kilometers, does not have the receive-transmit isolation problem, has avoided co-channel interference, thereby addressing is convenient, and can use omnidirectional antenna, realizes that omnidirectional covers; And signal transmission is not subjected to the restriction of geographical conditions, easily builds a station; The near-end machine 53 of base station coupling can directly be installed on (but also mounted base station wireless receiving) outward the base station in, and the site of remote termination 56 is selected the higher point in geographical position as far as possible, does not have obstacle on every side; The zone that the repeater can cover preferably is selected in outside the blind area, near the edge, blind area, guarantees the covering of maximum magnitude.
Adopt the coupler 52 of 10dB to 30dB in the present embodiment.
During installation, connect radio frequency interface C901 (near-end machine 53 signal inputs of a cable from the coupling port of coupler 52 to near-end machine 53, the inner filter that connects), nearly the microwave transmitting and receiving of terminal 53 is penetrated port 905 and is connected on the corresponding near-end microwave antenna 54, and near-end machine 53 can be fixed on the wall or be fixed on the platform; Remote termination 56 is installed, the antenna feeder joint is connected to radio frequency interface C ' 1004 (remote termination 53 signal outputs of direct amplification machine, the inner filter 601 ' that connects, the outside antenna that connects), and remote microwave antenna 55 is connected to corresponding microwave signal interface, remote termination 56 can be fixed on the wall, also can be fixed on the pole.
During use, connect near-end machine 53 and remote termination 56 power supplys, laptop computer and direct amplification machine local monitor interface are connected, and start monitoring software.Use monitoring software to monitor down output power, regulate the direct amplification machine gain and make it reach designing requirement, regulate uplink gain simultaneously, make it reach balance.Because the remolding sensitivity travelling carriage height of base station, uplink gain can help optimizing the introducing noise of SCDMA direct amplification machine suitably than the low 3～5dB of descending gain.
In the utility model, remote termination also can be for a plurality of, as shown in figure 11, when remote termination is 3, the fundamental diagram of SCDMA microwave repeater, similar when its operation principle and remote termination are 1, repeat no more herein.
The foregoing description only is used to illustrate the utility model, but not is used to limit the utility model.
Claims (14)
1. SCDMA microwave repeater, it is characterized in that, comprising: SCDMA BTS under CROS environment, through coupler near-end machine that is connected with this BTS under CROS environment and the near-end microwave antenna that is connected with the near-end machine, at least one remote termination and the remote microwave antenna and the far-end retransmitting antenna that are connected with this remote termination; Wherein,
The near-end machine is used for that the downstream signal that receives from BTS under CROS environment is carried out filtering, shift frequency conversion and microwave and amplifies, and is sent to the near-end microwave antenna; The upward signal that receives from the near-end microwave antenna is carried out filtering, reduction microwave receiving and the conversion of reduction shift frequency, be sent to BTS under CROS environment;
Described near-end microwave antenna and remote microwave antenna communicate by microwave;
Remote termination carries out filtering, shift frequency conversion and microwave to the upward signal that receives from the far-end retransmitting antenna and amplifies, and is sent to the remote microwave antenna; The downstream signal that receives from the remote microwave antenna is carried out filtering, reduction microwave receiving and the conversion of reduction shift frequency, be sent to the far-end retransmitting antenna.
2. SCDMA microwave according to claim 1 repeater, it is characterized in that described near-end machine comprises: first filter, the near-end transmitting-receiving lock unit that is connected with first filter and near-end shift frequency unit, the near-end microwave transmitting and receiving unit that is connected with near-end shift frequency unit with near-end transmitting-receiving lock unit and receive and dispatch second filter that lock unit is connected with near-end microwave transmitting and receiving unit with near-end; Wherein,
First filter is used to receive the downstream signal that BTS under CROS environment sends through coupler, and this downstream signal is carried out filtering, delivers to near-end shift frequency unit by near-end transmitting-receiving lock unit then; Receive the upward signal that near-end shift frequency unit sends by near-end transmitting-receiving lock unit, and carry out being sent to BTS under CROS environment after the filtering;
Near-end shift frequency unit, the downstream signal after accepting filter carries out the shift frequency conversion, delivers to near-end microwave transmitting and receiving unit then; Receive the upward signal that near-end microwave transmitting and receiving unit sends, deliver to first filter after the shift frequency that the reduces conversion;
Near-end microwave transmitting and receiving unit after receiving the downstream signal after shift frequency is changed and carrying out the microwave amplification, is sent to second filter; Receive the upward signal that second filter transmits by near-end transmitting-receiving lock unit, reduce and deliver to near-end shift frequency unit behind the microwave receiving;
Second filter receives the downstream signal that near-end microwave transmitting and receiving unit transmits, and carries out being sent to the near-end microwave antenna after the filtering; Receive the upward signal that the near-end microwave antenna transmits, carry out being sent to near-end microwave transmitting and receiving unit after the filtering.
3. SCDMA microwave according to claim 2 repeater, it is characterized in that, described near-end machine also comprises the near-end monitoring unit, and this near-end monitoring unit is connected with near-end shift frequency unit, near-end microwave transmitting and receiving unit with described near-end transmitting-receiving lock unit, is used for the near-end machine is carried out overall monitor.
4. SCDMA microwave according to claim 1 repeater, it is characterized in that described remote termination comprises: the 3rd filter, the far-end transmitting-receiving lock unit that is connected with the 3rd filter and far-end shift frequency unit, the remote microwave Transmit-Receive Unit that is connected with far-end shift frequency unit with far-end transmitting-receiving lock unit and receive and dispatch the 4th filter that lock unit is connected with the remote microwave Transmit-Receive Unit with far-end; Wherein,
The 3rd filter is used to receive the upward signal that the far-end retransmitting antenna sends, and this upward signal is carried out filtering, delivers to far-end shift frequency unit by far-end transmitting-receiving lock unit then; Receive the downstream signal that near-end shift frequency unit sends by the transmitting-receiving lock unit, and carry out being sent to the far-end retransmitting antenna after the filtering;
Far-end shift frequency unit, the upward signal after accepting filter carries out the shift frequency conversion, delivers to the remote microwave Transmit-Receive Unit then; Receive the downstream signal that the remote microwave Transmit-Receive Unit sends, deliver to the 3rd filter after the shift frequency that the reduces conversion;
The remote microwave Transmit-Receive Unit after receiving the upward signal after shift frequency is changed and carrying out the microwave amplification, is sent to the 4th filter; Receive the downstream signal that the 4th filter transmits by the transmitting-receiving lock unit, reduce and deliver to far-end shift frequency unit behind the microwave receiving;
The 4th filter is used to receive the upward signal that the remote microwave Transmit-Receive Unit transmits, and is sent to the remote microwave antenna; Receive the downstream signal that the remote microwave antenna transmits, carry out being sent to the remote microwave Transmit-Receive Unit after the filtering.
5. SCDMA microwave according to claim 4 repeater, it is characterized in that, described remote termination also comprises the remote monitoring unit, and this remote monitoring unit is connected with described far-end transmitting-receiving lock unit, far-end shift frequency unit, remote microwave Transmit-Receive Unit, and this remote termination is carried out overall monitor.
6. a SCDMA microwave direct amplification machine is characterized in that, comprising: the near-end machine reaches remote microwave antenna and the far-end retransmitting antenna that is connected with this remote termination with the near-end microwave antenna that is connected with the near-end machine, at least one remote termination; Wherein,
The near-end machine is used for that the downstream signal that receives from BTS under CROS environment is carried out filtering, shift frequency conversion and microwave and amplifies, and is sent to the near-end microwave antenna; The upward signal that receives from the near-end microwave antenna is carried out filtering, reduction microwave receiving and the conversion of reduction shift frequency, be sent to BTS under CROS environment;
Described near-end microwave antenna and remote microwave antenna communicate by microwave;
Remote termination carries out filtering, shift frequency conversion and microwave to the upward signal that receives from the far-end retransmitting antenna and amplifies, and is sent to the remote microwave antenna; The downstream signal that receives from the remote microwave antenna is carried out filtering, reduction microwave receiving and the conversion of reduction shift frequency, be sent to the far-end retransmitting antenna.
7. SCDMA microwave direct amplification machine according to claim 6, it is characterized in that described near-end machine comprises: first filter, the near-end transmitting-receiving lock unit that is connected with first filter and near-end shift frequency unit, the near-end microwave transmitting and receiving unit that is connected with near-end shift frequency unit with near-end transmitting-receiving lock unit and receive and dispatch second filter that lock unit is connected with near-end microwave transmitting and receiving unit with near-end; Wherein,
First filter is used to receive the downstream signal that BTS under CROS environment sends through coupler, and this downstream signal is carried out filtering, delivers to near-end shift frequency unit by near-end transmitting-receiving lock unit then; Receive the upward signal that near-end shift frequency unit sends by near-end transmitting-receiving lock unit, and carry out being sent to BTS under CROS environment after the filtering;
Near-end shift frequency unit, the downstream signal after accepting filter carries out the shift frequency conversion, delivers to near-end microwave transmitting and receiving unit then; Receive the upward signal that near-end microwave transmitting and receiving unit sends, deliver to the near-end filter after the shift frequency that the reduces conversion;
Near-end microwave transmitting and receiving unit after receiving the downstream signal after shift frequency is changed and carrying out the microwave amplification, is sent to second filter; Receive the upward signal that second filter transmits by near-end transmitting-receiving lock unit, reduce and deliver to near-end shift frequency unit behind the microwave receiving;
Second filter receives the downstream signal that near-end microwave transmitting and receiving unit transmits, and carries out being sent to the near-end microwave antenna after the filtering; Receive the upward signal that the near-end microwave antenna transmits, carry out being sent to near-end microwave transmitting and receiving unit after the filtering.
8. SCDMA microwave direct amplification machine according to claim 7, it is characterized in that, described near-end machine also comprises the near-end monitoring unit, and this near-end monitoring unit is connected with near-end shift frequency unit, near-end microwave transmitting and receiving unit with described near-end transmitting-receiving lock unit, is used for the near-end machine is carried out overall monitor.
9. SCDMA microwave direct amplification machine according to claim 6, it is characterized in that described remote termination comprises: the 3rd filter, the far-end transmitting-receiving lock unit that is connected with the 3rd filter and far-end shift frequency unit, the remote microwave Transmit-Receive Unit that is connected with far-end shift frequency unit with far-end transmitting-receiving lock unit and receive and dispatch the 4th filter that lock unit is connected with the remote microwave Transmit-Receive Unit with far-end; Wherein,
The 3rd filter is used to receive the upward signal that the far-end retransmitting antenna sends, and this upward signal is carried out filtering, delivers to far-end shift frequency unit by far-end transmitting-receiving lock unit then; Receive the downstream signal that near-end shift frequency unit sends by the transmitting-receiving lock unit, and carry out being sent to the far-end retransmitting antenna after the filtering;
Far-end shift frequency unit, the upward signal after accepting filter carries out the shift frequency conversion, delivers to the remote microwave Transmit-Receive Unit then; Receive the downstream signal that the remote microwave Transmit-Receive Unit sends, deliver to the far-end filter after the shift frequency that the reduces conversion;
The remote microwave Transmit-Receive Unit after receiving the upward signal after shift frequency is changed and carrying out the microwave amplification, is sent to the 4th filter; Receive the downstream signal that the 4th filter transmits by the transmitting-receiving lock unit, reduce and deliver to far-end shift frequency unit behind the microwave receiving;
The 4th filter is used to receive the upward signal that the remote microwave Transmit-Receive Unit transmits, and is sent to the remote microwave antenna; Receive the downstream signal that the remote microwave antenna transmits, carry out being sent to the remote microwave Transmit-Receive Unit after the filtering.
10. SCDMA microwave direct amplification machine according to claim 9, it is characterized in that, described remote termination also comprises the remote monitoring unit, and this remote monitoring unit is connected with described far-end transmitting-receiving lock unit, far-end shift frequency unit, remote microwave Transmit-Receive Unit, and this remote termination is carried out overall monitor.
11. SCDMA microwave direct amplification machine according to claim 6 is characterized in that the radio frequency operation frequency range of this SCDMA microwave direct amplification machine is 1785～1805MHz, the working frequency range of microwave transmission is 1505～1525MHz.
12. SCDMA microwave direct amplification machine according to claim 7 is characterized in that, described near-end and remote microwave Transmit-Receive Unit adopt the 1.5G microwave to transmit.
13. SCDMA microwave direct amplification machine according to claim 9 is characterized in that, described far-end shift frequency unit and remote microwave Transmit-Receive Unit adopt the 1.5G microwave to transmit.
14. according to Claim 8 or 10 described SCDMA microwave direct amplification machines, it is characterized in that described near-end machine includes power conversion unit and the mains switch that is connected with this power conversion unit with remote termination; Wherein,
Described power conversion unit is used for the alternating current of external world's input is converted to direct current;
In the near-end machine, described mains switch is connected with the near-end monitoring unit with described near-end transmitting-receiving lock unit, near-end shift frequency unit, near-end microwave transmitting and receiving unit respectively by power line;
In remote termination, described mains switch is connected with the remote monitoring unit with described far-end transmitting-receiving lock unit, far-end shift frequency unit, remote microwave Transmit-Receive Unit respectively by power line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201193017U CN200980075Y (en) | 2006-08-23 | 2006-08-23 | A SCDMA microwave repeater and straight receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201193017U CN200980075Y (en) | 2006-08-23 | 2006-08-23 | A SCDMA microwave repeater and straight receiver |
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| Publication Number | Publication Date |
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| CN200980075Y true CN200980075Y (en) | 2007-11-21 |
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| CNU2006201193017U Expired - Lifetime CN200980075Y (en) | 2006-08-23 | 2006-08-23 | A SCDMA microwave repeater and straight receiver |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109547087A (en) * | 2018-12-06 | 2019-03-29 | 广州东峰通信科技有限公司 | A kind of wireless frequency-shift repeater |
-
2006
- 2006-08-23 CN CNU2006201193017U patent/CN200980075Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109547087A (en) * | 2018-12-06 | 2019-03-29 | 广州东峰通信科技有限公司 | A kind of wireless frequency-shift repeater |
| CN109547087B (en) * | 2018-12-06 | 2019-08-02 | 广州东峰通信科技有限公司 | A kind of wireless frequency-shift repeater |
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Address after: 100044 Beijing City, Haidian District Road No. 1 Zizhuyuan Dhi Villa block C room 2404 Patentee after: Boomsense Technology Co., Ltd. Address before: 100044 Beijing City, Haidian District Road No. 1 Zizhuyuan Dhi Villa block C room 2404 Patentee before: Beijing Boomsense Technology Co., Ltd. |
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Address after: 100048 Beijing city Haidian District Road No. nine subject business center building 4, 8 storey office 0803 Patentee after: Boomsense Technology Co., Ltd. Address before: 100044 Beijing City, Haidian District Road No. 1 Zizhuyuan Dhi Villa block C room 2404 Patentee before: Boomsense Technology Co., Ltd. |
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