The residential quarters mobile communication covers preferred embodiment
Technical field: the utility model relates to a kind of residential quarters mobile communication and covers preferred embodiment.
Background technology: along with the modern city expanding economy, city size is increasing, and it is more and more that the standardization merchant of various different scales lives the sub-district.This merchant who differs from one another lives the sub-district becomes a spotlight in the modern city dwelling house, and stand in great numbers owing to high level in these new residential quarters, close together between the Lou Yulou, generally one to three layer of outdoor and indoor movable signal all has more weakly in the sub-district, just becoming new city movable signal and covering weak signal area and blind area.Urban House housing estate development constantly develops people and uses the mobile phone probability to increase considerably in family, and the cellphone subscriber requires that speech quality is more and more higher at home.And have a large amount of mobile subscribers, the mobile phone signal covering problem in this class sub-district just becoming the problem that Mobile Network Operator is more and more paid close attention in these residential quarters; From a large amount of covering customer complaint data, also can obviously reflect this problem.This just forces to such an extent that mobile operator has to pay much attention to the mobile phone signal covering problem of residential quarters.Solve the sub-district and cover the necessary following key issue that solves:
The first, the problem of co-channel interference of overlay area.The second, cell system is to the base station interference problem.Three, the feasibility problem of scheme.Four, scheme must be protected benefits of operators, promptly guarantees the normal operation of operation system under the least possible investment.Five, scheme must be protected the vital interests of residential quarter resident family, guarantees that the people lives not to be subjected to bothering, and the cell environment construction remains unchanged.Six, scheme must be simple and direct, and it is very convenient to construct.
Present residential building community mobile communication G﹠amp; The C net covers the scheme of being taked following various ways:
1, the wireless discharging-directly station radio frequency is introduced scheme: characteristics: this scheme equipment cost is low, installs simply, and maximum shortcoming is that the base station is had interference.Especially in covering, many base stations urban cells should not adopt.
2, the fiber distribution scheme is introduced in the optical fiber repeater coupling: its feature good communication quality, can realize that by optical branching device fiber optic point covers multipoint cell, but precondition is, optical fiber must arrive the building, and especially in the city dweller sub-district covered, the optical cable construction difficulty was big, the expense height, cycle is long, and artificial difficulty is bigger, and project progress is not had guarantee.
3, introduce the microwave transmission scheme by the frequency-shift repeater coupling.Characteristics: speech quality is good, and the construction period is short, need not connect up, and is noiseless to the base station, and shortcoming is to realize that the point-to-multipoint sub-district covers.If adopt a plurality of microwaves repeater to realize that the multiple access covering has interference between then existing mutually, serious will influence speech quality and coverage effect, and the interference that may cause the base station.
4, microcellulor is introduced scheme: microcell base station is installed in the area of cell telephone traffic amount comparatively dense, is characterized in that speech quality is good, capacity is arranged again, its shortcoming is that to introduce the scheme system with optical fiber the same, must the 2M transmission put in place.And cost is high to negotiate difficulty with property and user, so can not thoroughly solve the indoor covering problem of whole sub-district.
From such scheme as can be seen, there is wretched insufficiency in the solution of sub-district covering in the past, because the residential quarter is different from the hotel or the office building in common public place, indoor distribution solution can't be implemented, because commercialization residential quarters, difficulty of construction is big, and the harmonious relations difficulty can only be taked outdoor solution.Because the sub-district is located in the urban area, optical fiber and wireless discharging-directly station are difficult to again implement, so cause the blind area of mobile communication.We advise adopting the application's patent scheme: promptly mobile communication covers the Optical Fiber Transmission shift frequency and covers the one point for multiple address technical scheme.Like this, then can thoroughly solve the different local outdoor and indoor signal covering problems in residential quarters.
Summary of the invention: the purpose of this utility model is that design a kind of residential quarters mobile communication covers preferred embodiment, and its good communication quality, the engineering difficulty is low, engineering cost is few, system's reconnaissance is flexible, can not form co-channel interference.
The purpose of this utility model is to realize like this, design a kind of residential quarters mobile communication and cover preferred embodiment, it is characterized in that: it is by the base station, fibre optic transmission equipment (A), optical fiber shift frequency transmission equipment (B), microwave shift frequency overlay device (C) constitutes, the base station is electrically connected by radio with fibre optic transmission equipment (A), fibre optic transmission equipment (A) is connected by optical cable with optical fiber shift frequency transmission equipment (B), optical fiber shift frequency transmission equipment (B) is connected by microwave with microwave shift frequency overlay device (C), and microwave shift frequency overlay device (C) is electrically connected by radio with mobile communication terminal;
Be electrically connected by radio between described fibre optic transmission equipment (A) and the base station, its connected mode can be to connect by coupler;
Being electrically connected by radio between described fibre optic transmission equipment (A) and the base station also can be to be connected by antenna.
Characteristics of the present utility model are: owing to from the base station to the cell signal, adopt optical cable to transmit, so it has: and 1, speech quality is good, and is noiseless to the base station, can realize that the point-to-multipoint sub-district covers.2, equipment cost is low, installs simple.3, can thoroughly solve the indoor covering of whole sub-district.4, difficulty of construction is little, and expense is low, and the cycle is short.
Below in conjunction with the embodiment that is connected by the coupler connected mode between fibre optic transmission equipment (A) and the base station the utility model is described further.
Description of drawings: Fig. 1 is the system configuration schematic diagram of the utility model embodiment;
Fig. 2 is the utility model fibre optic transmission equipment (A) schematic block circuit diagram;
Fig. 3 is the utility model optical fiber shift frequency transmission equipment (B) schematic block circuit diagram;
Fig. 4 is the utility model microwave shift frequency overlay device (C) schematic block circuit diagram.
Among the figure: 1, base station; 2, coupler; 3, device A; 4, equipment B; 5, equipment C; 6, terminal; 7, duplexer A1; 8, optical transceiver A1; 9, optical transceiver B1; 10, frequency converter B 1; 11, bandpass filtering B1; 12, power amplifier B1; 13, duplexer B2; 14, low noise amplifier B2; 15, frequency converter B 2; 16, bandpass filtering B2; 17, antenna B2; 18, antenna C1; 19, duplexer C1; 20, low noise amplifier C1; 21, frequency converter C1; 22, bandpass filtering C1; 23, power amplifier C1; 24, duplexer C2; 25, antenna C2; 26, low noise amplifier C2; 27, frequency converter C2; 28, bandpass filtering C2; 29, power amplifier C2.
Embodiment: Fig. 1 has provided the system configuration schematic diagram of the utility model embodiment, the residential quarters mobile communication covers preferred embodiment and is made up of base station 1, coupler 2, fibre optic transmission equipment (A) 3, optical fiber shift frequency transmission equipment (B) 4, microwave shift frequency overlay device (C) 5, it comprises: fibre optic transmission equipment (A) 3, be used to receive the signal that base station frequency is F0, and be that the signal of F0 is modulated into light signal and is transferred to optical fiber shift frequency transmission equipment (B) 4 by optical cable frequency; Being used to receive the light signal of optical fiber shift frequency transmission equipment (B) 4 and converting thereof into the used frequency in base station is the signal of F0, is transferred to base station 1 by coupler; Optical fiber shift frequency transmission equipment (B) 4, be used to receive the light signal of fibre optic transmission equipment (A) 3, and to convert thereof into base station 1 used frequency be the signal of F0, being used for frequency is that the signal shift frequency of F0 is the signal of F1 to microwave frequency, and being used for shift frequency is that the signal of F1 sends to microwave shift frequency overlay device (C) 5 to microwave frequency; The frequency that is used to receive microwave shift frequency overlay device (C) 5 is the signal of F1, with the frequency of the microwave shift frequency overlay device (C) 5 that receives be the conversion of signals of F1 to become frequency be the signal of F0, and be that the signal of F0 is modulated into light signal and is transferred to fibre optic transmission equipment (A) 3 by optical cable with frequency; Microwave shift frequency overlay device (C) 5, the microwave frequency that is used to receive optical fiber shift frequency transmission equipment (B) 4 is the signal of F1, the microwave frequency that is used for the optical fiber shift frequency transmission equipment (B) 4 that will receive be the conversion of signals of F1 to become the used frequency of mobile communications device be the signal of F0, send to mobile communication terminal 6 then; Being used to receive the used frequency of mobile communication terminal is the signal of F0, and converts thereof into the signal that microwave frequency is F1, and being used for microwave frequency is that the signal of F1 is transmitted to optical fiber shift frequency transmission equipment (B) 4.
The used frequency of described radio and mobile communication terminal is 400-960MHz.
Described base station frequency F0 belongs to described radio-frequency band.
Described microwave frequency is between 1~20GHz.
Described microwave frequency F1 belongs to described microwave frequency range.
As shown in Figure 2, fibre optic transmission equipment (A) 3 comprises: a reception, transmission base station 1 used frequency are the coupler 2 of the signal of F0, one reception, transmission base station 1 used frequency are the duplexer (A1) 7 of the signal of F0, duplexer (A1) 7 is divided into two-way, one tunnel frequency with reception is that the signal of F0 is delivered to an optical transceiver (A1) 8, this optical transceiver (A1) 8 is that the signal of F0 is modulated into light signal with frequency, and light signal is transferred to optical fiber shift frequency transmission equipment (B4) by optical cable; An optical transceiver (A1) 8 is delivered to the light signal of the optical fiber shift frequency transmission equipment (B4) that receives in another road, converting light signal to base station 1 used frequency by optical transceiver (A1) 8 is the signal of F0, through duplexer (A1) 7, be transferred to base station 1 by coupler 2 again.
As shown in Figure 3, optical fiber shift frequency transmission equipment (B) 4 comprises: optical transceiver (B1) 9, converting the light signal of the fibre optic transmission equipment (A) 3 that receives to base station 1 used frequency is the signal of F0, and deliver to a frequency converter (B1) 10, this frequency converter (B1) 10 is that to become microwave frequency be the signal of F1 for the conversion of signals of F0 with frequency, with microwave frequency is that the signal of F1 is delivered to a band pass filter (B1) 11, the output of band pass filter (B1) 11 is amplified through a power amplifier (B1) 12, amplifying signal is delivered to a duplexer (B2) 13, sends by one again, reception antenna (B2) 17 sends; Another road is through antenna 17, duplexer 13 is that the signal of F1 at first amplifies through low noise amplifier (B2) 14 with the microwave frequency that receives, deliver to a frequency converter (B2) 15, this frequency converter (B2) 15 microwave frequencies are that to become the used frequency in base station be that the signal of F0 is delivered to a band pass filter (B2) 16 to the conversion of signals of F1, optical transceiver (B1) 9 is delivered in the output of band pass filter (B2) 16, this optical transceiver (B1) 9 is that the signal of F0 is modulated into light signal with frequency, and light signal is transferred to fibre optic transmission equipment (A) 3 by optical cable.
As shown in Figure 4, microwave shift frequency overlay device (C) 5 comprises: one receives, sending microwave frequency is the antenna (C1) 18 of the signal of F1, one receives, sending microwave frequency is the duplexer (C1) 19 of the signal of F1, duplexer (C1) 19 is divided into two-way, one tunnel microwave frequencies with 18 receptions are that the signal of F1 amplifies through low noise amplifier (C1) 20, deliver to a frequency converter (C1) 21, this frequency converter (C1) 21 is that to become the used frequency of mobile communication terminal be the signal of F0 for the conversion of signals of F1 with microwave frequency, and be that the signal of F0 is delivered to a band pass filter (C1) 22 with frequency, the output of band pass filter (C1) 22 is amplified through a power amplifier (C1) 23, amplifying signal is delivered to a duplexer (C2) 24, sends by one again, reception antenna (C2) 25 sends; Another road is that the signal of F0 amplifies through low noise amplifier (C2) 26 with the mobile communication terminal 6 used frequencies that receive by antenna 25, duplexer 24, and deliver to a frequency converter (C2) 27, this frequency converter (C2) 27 frequency that mobile communication terminal is used is that to become microwave frequency be the signal of F1 to the conversion of signals of F0, and deliver to a band pass filter (C2) 28, the output of band pass filter (C2) 28 is amplified through a power amplifier (C2) 29, amplifying signal is delivered to duplexer (C1) 19, is sent by transmission, reception antenna (C1) 18 again.
In the utility model, the frequency of F1 is a microwave frequency, can not produce co-channel interference in the different local outdoor and indoor signals in residential quarters cover, and can guarantee that speech quality is unaffected simultaneously, has the construction period weak point, the more important thing is base station 1 noiseless.
An optical fiber shift frequency transmission equipment (B) 4 can be faced many shift frequency overlay devices (C) 5 simultaneously, can realize so some multipoint cell being covered, and can thoroughly solve the different local outdoor and indoor signal covering problems in residential quarters.