CN1219410C - Intelligent base station signal relay amplifying and transmitting device and method - Google Patents
Intelligent base station signal relay amplifying and transmitting device and method Download PDFInfo
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Abstract
The present invention discloses a device and a method for relaying, amplifying and transmitting signals at an intelligent base station. The device for relaying, amplifying and transmitting signals at an intelligent base station comprises a donor antenna and a coverage antenna, wherein the donor antenna and the coverage antenna are separated, are respectively connected with the base station and terminals, and are connected with each other through a relay amplifying circuit and a switch circuit. Through the separated design of the receiving antenna and the transmitting antenna, the coverage antenna can be installed in different positions according to actual demands to obtain a flexible coverage way and a reasonable signal coverage way so as to solve the coverage problem of complicated regions. The separated antennas has small interference and antennas with high gain can be used for receiving and transmitting signals to enhance the utilization rate of the signals. In addition, a frequency with the weakest field strength is used as a frequency for the regenerated time slot of the device for relaying, amplifying and transmitting signals at an intelligent base station to further reduce the same frequency interference to the base station.
Description
Technical field:
The present invention relates to a kind of intelligent base station signal relay and amplify retransmission unit and method, this relaying amplifies retransmission unit can abbreviate " intelligent straight placement station " as again.
Background technology:
The PHS communication system is the mobile communication system that present China Telecom builds energetically, and its working method is the TDMA/TDD mode, and the frequency of using is 1893.65-1919.45MHz, and existing base station transmitting power has: 10mW, 200mW, 500mW etc. are several.Because the frequency height that uses, the diffracting power of signal is very poor, base station transmitting power is again little, cause signal to be difficult to penetrate in the wall covering chamber, indoor signal generally a little less than, the blind area is very many, indoor user speech quality is very poor, and intelligent straight placement station is the method that solves indoor covering and the most economical practicality in remote suburb, and existing intelligent straight placement station power is little, the shared one pair of antenna of not split of dual-mode antenna, can not freely adjust coverage according to the RST and the location circumstances of the area of coverage, power dissipation is very big like this, and original transmitting power is just little, so the scope that covers is just very little, even at the indoor intelligent straight placement station of having installed, still do not make a call from intelligent straight placement station place slightly a little further, also have its intelligent degree low, intelligent straight placement station can cause interference to the base station when the information of transmission.
Summary of the invention:
Purpose of the present invention is exactly in order to solve the problem that prior art can not freely be adjusted coverage according to the RST and the location circumstances of the area of coverage, to provide a kind of intelligent base station signal relay to amplify retransmission unit and method.
Another object of the present invention is to reduce the interference that the base station is caused.
For achieving the above object, the present invention proposes a kind of intelligent base station signal relay and amplifies retransmission unit, comprise antenna and the relaying amplifying circuit that links to each other with antenna, it is characterized in that: described antenna comprises donor antenna and cover antenna, the base station signal that described donor antenna is used for receiving inputs to the relaying amplifying circuit, and will send to the base station from the signal of relaying amplifying circuit output, the terminal signaling that described cover antenna is used for receiving inputs to the relaying amplifying circuit, and will send to terminal from the signal of relaying amplifying circuit output, described relaying amplifying circuit comprises switching circuit, when terminal is signaled in the intelligent base station signal relay amplifies the retransmission unit area of coverage in the base station, switching circuit switches to the donor antenna end, donor antenna and the conducting of relaying amplifying circuit; The signal that donor antenna receives is handled through the relaying amplifying circuit, when the intelligent base station signal relay amplify retransmission unit with this signal when cover antenna is issued terminal, switching circuit switches to cover antenna, relaying amplifying circuit and cover antenna conducting; When terminal when the intelligent base station signal relay amplifies retransmission unit and uploads signal, switching circuit switches to cover antenna, relaying amplifying circuit and cover antenna conducting, the signal that receives is through relaying amplifying circuit processing and amplifying, the intelligent base station signal relay amplify retransmission unit with this signal when donor antenna is issued the base station, switching circuit switches to donor antenna, donor antenna and the conducting of relaying amplifying circuit.
The present invention also proposes a kind of intelligent base station signal relay and amplifies retransmission method, utilizes the intelligent base station signal relay to amplify retransmission unit and signal of base station is carried out relaying amplifies, and it is more weak or do not have a zone of signal to cover signal; Signal is more weak or do not have the terminal signaling in the zone of signal to amplify to be transmitted to the base station, it is characterized in that: the intelligent base station signal relay amplifies retransmission unit and selects donor antenna separately for use, cover antenna and relaying amplifying circuit, described relaying amplifying circuit selects for use switching circuit to link to each other with cover antenna with donor antenna respectively, comprise the steps: 1) in the base station when the intelligent base station signal relay amplifies retransmission unit and signals, switching circuit is switched to the donor antenna end, donor antenna and the conducting of relaying amplifying circuit, 2) signal of described donor antenna reception is handled through the relaying amplifying circuit, 3) the intelligent base station signal relay amplify retransmission unit with treated signal when cover antenna is issued terminal, switching circuit is switched to cover antenna, relaying amplifying circuit and cover antenna conducting, 4) in terminal when the intelligent base station signal relay amplifies retransmission unit and uploads signal, switching circuit is switched to cover antenna, relaying amplifying circuit and cover antenna conducting, 5) signal of described cover antenna reception is through relaying amplifying circuit processing and amplifying, 6) when the intelligent base station signal relay amplify retransmission unit with the signal handled when donor antenna is issued the base station, switching circuit is switched to donor antenna, donor antenna and the conducting of relaying amplifying circuit.
According to one embodiment of present invention, the intelligent base station signal relay amplifies retransmission unit when getting in touch with terminal foundation, by automatic interception system, search out the carrier frequency of the most weak frequency of field intensity, will on the regeneration time slot of intelligent base station signal relay amplification retransmission unit, be transmitted to terminal from the information of base station then as intelligent base station signal relay amplification retransmission unit regeneration time slot.
Owing to adopted above scheme, be donor antenna and cover antenna split design by dual-mode antenna, cover antenna can be installed in different positions according to actual needs, makes coverage mode more flexible, and it is more reasonable that signal covers, the covering that can solve complex region; Separate the interference reduction between the aft antenna, and can choose the bigger antenna of gain and receive and dispatch, can improve the signal utilance.
Search out the most weak frequency of field intensity as the frequency that the intelligent base station signal relay amplifies retransmission unit regeneration time slot, then can further reduce co-channel interference the base station.
Description of drawings:
Fig. 1 is that the intelligent base station signal relay amplifies the retransmission unit schematic diagram of arranging net.
Fig. 2 is that intelligent base station signal relay of the present invention amplifies retransmission unit single-channel architecture principle schematic.
Fig. 3 is the switching circuit schematic diagram of individual channel.
Fig. 4 is that a channel intelligent base station signal relay amplifies the retransmission unit schematic diagram.
Fig. 5 is that two channel intelligent base station signal relay amplify the retransmission unit schematic diagram.
Fig. 6 is that four channel intelligent base station signal relay amplify the retransmission unit schematic diagram.
Embodiment:
The present invention is described in further detail below by specific embodiment and in conjunction with figure.
The method of work of this intelligent straight placement station is based on that the agreement RCR-STD-28 of PHS communication system develops, and mainly the technical problem of Xie Jueing is: the covering of weak signal area and blind area in a, the PHS system chambers; The wireless channel of b, amplification is few; C, solution sending and receiving antenna split design, the problem that indoor cover antenna 2 can be placed flexibly; D, solve because of the too little problem that can not large tracts of land covers of power; E, certainly separate the problem that transmit-receive cofrequency disturbs.
For solution to the problems described above is: a, intelligent base station signal relay amplify retransmission unit and select donor antenna 1 and cover antenna 2 separately for use, and they are got in touch with base station and terminal respectively by relaying amplifying circuit and switching circuit 3.Receive the signal of donor base station by donor antenna 1 at down link, utilize the relaying amplifying circuit to carry out giving domestic aerial after relaying amplifies and be radiated each indoor interval, at the signal of up link, utilize the relaying amplifying circuit to carry out being transmitted to the PHS base station from donor antenna 1 after relaying amplifies by indoor cover antenna 2 receiving terminal mobile phones emission; Lay by the antenna split, thereby can use high power module, can interference base station, realize that large tracts of land covers and separates must not lay cover antenna 2 flexibly, the problem of waste power; B, utilize switching circuit 3 that donor antenna 1 and cover antenna 2 are conducted with the relaying amplifying circuit respectively, intelligent straight placement station is realized sending and receiving antenna split design by synchronous with the base station achieve frame by synchronizing signal control transmit-receive switch.In down link, when the base station at a certain time slot when mobile phone signals in the intelligent base station signal relay amplifies the retransmission unit area of coverage, utilize switching circuit 3 at this time slot with donor antenna 1 and the conducting of relaying amplifying circuit, after the signal that donor antenna 1 receives is handled through the relaying amplifying circuit, amplify the descending time slot of retransmission unit at the intelligent base station signal relay this signal is issued mobile phone through cover antenna 2, utilize switching circuit 3 with relaying amplifying circuit and cover antenna 2 conductings at this descending time slot; In up link, when mobile phone at a certain time slot when the intelligent base station signal relay amplifies retransmission unit and uploads signal, utilize switching circuit 3 with relaying amplifying circuit and cover antenna 2 conductings, the signal that receives is after the oversampling circuit processing and amplifying, amplify the ascending time slot of retransmission unit at the intelligent base station signal relay this signal is issued the base station through donor antenna 1, utilize switching circuit 3 with donor antenna 1 and the conducting of relaying amplifying circuit at this ascending time slot.C, setting up when getting in touch with the base station, find the strongest base station of idle time slot and field intensity as and the intelligent base station signal relay amplify the donor base station that retransmission unit communicates, generate a base station code (being called for short CS-ID) simultaneously; When the base station of peak signal does not have idle channel, select the donor base station of time base station of strong signal for use as relaying amplification retransmission unit, also there is not idle channel as this base station, Using such method is analogized again, till finding the base station that idle channel is arranged.Can change the signal quality of cover net network like this.D, intelligent base station signal relay amplify retransmission unit when getting in touch with terminal foundation, by automatic interception system, search out the carrier frequency of the most weak frequency of field intensity, will on the regeneration time slot of intelligent base station signal relay amplification retransmission unit, be transmitted to terminal from the information of base station then as intelligent base station signal relay amplification retransmission unit regeneration time slot.Frequency is intercepted technology and is used the most weak frequency of field intensity instead and transmit, thereby can use high power module, can interference base station, realize that large tracts of land covers; In addition, by intercepting the problem that technology PHS can eliminate co-channel interference; E, utilize mixer make donor antenna 1 of several channel sharings and the one side cover antenna 2.Can carry out the mode of a plurality of channel communications simultaneously.F. the intelligent base station signal relay is amplified the watt level that signal that retransmission unit receives amplifies and regulate its output, can launch the signal of reasonable intensity as required like this, can optimize resource.
The course of work concrete by this intelligent straight placement station of said method is as follows: the signal of intercepting peripheral base station after a, the intelligent straight placement station start automatically is synchronous according to the system identification and the base station achieve frame that receive signal, find the base station that idle time slot is arranged, intelligent straight placement station produces a base station code (CS-ID) and mobile communication simultaneously; B, when being in idle condition in the intelligent straight placement station coverage, the control signaling information of base station and be transmitted to terminal phone under intelligent straight placement station receives at the regeneration time slot of intelligent straight placement station, the used carrier frequency of time slot of regenerating this moment still is the control carrier frequency number of base station system; C, the automatic interception system of intelligent straight placement station are searched for the carrier frequency of a carrier frequency that field intensity is the most weak as the regeneration time slot, make a call to intelligent straight placement station zone mobile phone as the base station, intelligent straight placement station is transmitted to mobile phone with the paging information of base station on the regeneration time slot, the base station will distribute a communication channel to give intelligent straight placement station after finishing as the authentication of mobile phone and base station, intelligent straight placement station is transmitted to mobile phone with a carrier frequency that field intensity is the most weak that listens on the regeneration time slot, mobile phone keeps communicating by letter on this carrier frequency and time slot with intelligent straight placement station; D, intelligent straight placement station are transmitted the voice messaging transparent relay in communication.
Fig. 1 is the intelligent straight placement station schematic diagram of arranging net, as shown in Figure 2, be that intelligent base station signal relay of the present invention amplifies retransmission unit single-channel architecture principle schematic, this intelligent straight placement station, comprise donor antenna 1, the relaying amplifying circuit that cover antenna 2 and donor antenna 1 link to each other with cover antenna 2, described relaying amplifying circuit comprises switching circuit 3 and links to each other successively: first filter circuit 4, first amplifying circuit 5, first mixting circuit 6, second filter circuit 7, second mixting circuit 8, baseband processing chip BBIC and central processor CPU, first lower frequency changer circuit 9, the 3rd amplifying circuit 18, second lower frequency changer circuit 10 the 3rd filter circuit 11 and second amplifying circuit, and be included as the local vibration source 13 that mixting circuits at different levels and lower frequency changer circuit provide local oscillation signal; The base station signal that donor antenna 1 is used for receiving inputs to the relaying amplifying circuit, and will send to the base station from the signal of relaying amplifying circuit output, the terminal signaling that described cover antenna 2 is used for receiving inputs to the relaying amplifying circuit, and will send to terminal from the signal of relaying amplifying circuit output.Be illustrated in figure 3 as switching circuit 3 schematic diagrames, switching circuit 3 is in down link, when the base station at a certain time slot when terminal is signaled in the intelligent base station signal relay amplifies the retransmission unit area of coverage, switching circuit 3 switches to donor antenna 1 end, in this time slot donor antenna 1 and the conducting of relaying amplifying circuit; After the signal that donor antenna 1 receives is handled through the relaying amplifying circuit, the descending time slot that amplifies retransmission unit at the intelligent base station signal relay with this signal when cover antenna 2 is issued terminal, switch to cover antenna 2 at this descending time slot switching circuit 3, relaying amplifying circuit and cover antenna 2 conductings; In up link, when terminal at a certain time slot when the intelligent base station signal relay amplifies retransmission unit and uploads signal, switching circuit 3 switches to cover antenna 2, relaying amplifying circuit and cover antenna 2 conductings, the signal that receives after the oversampling circuit processing and amplifying, the ascending time slot that amplifies retransmission unit at the intelligent base station signal relay with this signal when donor antenna 1 is issued the base station, at this ascending time slot, switching circuit 3 switches to donor antenna 1, with donor antenna 1 and the conducting of relaying amplifying circuit.The terminal that interrelates is a mobile phone, the input of first filter amplification circuit is the received signal end, it links to each other with switching circuit 3, the output of second amplifying circuit is the end that transmits, it is connected to switching circuit 3, local vibration source 13 comprises a digital phase-locking oscillator phase, and the frequency of oscillation control end of oscillator links to each other with central processor CPU.Local vibration source 13 comprises first local oscillator 14, second local oscillator 15, wherein chooses first local oscillator 14 and is tunable oscillator.The 3rd amplifying circuit 18 is an adjustable amplifier, and its control end links to each other with central processor CPU.
One end that also can increase first, second mixer 16,17, the first mixers 16 and second mixer 17 for the foregoing description is connected to donor antenna 1 and cover antenna 2 respectively, and their other end is connected to first port and second port of switching circuit 3 respectively.
Also can increase modulator-demodulator for the foregoing description, modulator-demodulator is between first filter circuit 4 and first amplifying circuit 5.
According to above-mentioned design, operation principle of the present invention is described in further detail below in conjunction with Fig. 2.It is described below:
At down link: 1. intelligent straight placement station receives the PHS base station signal by donor antenna 1; 2. amplify through the laggard capable low noise of filtering; 3. the signal after amplifying and the local oscillation signal mixing of first local oscillator 14 become 243.95MHz; 4. again 243.95MHz signal and second local oscillator, 15 signals are carried out the mixing second time and become 10.8MHz; 5. give base band after 10.8MHz being amplified and manage chip outward; 6. also from the 10.8MHz signal, extract received signal indication intensity (RSSI) signal simultaneously and give central processor CPU; 7. baseband processing chip BBIC carries out demodulation, modulates and give first low-converter data-signal; 8. central processor CPU frame synchronizing signal, local oscillator control signal, power amplifier gain control signal when receiving signal intensity indication signal RSSI extracts; 9. the signal after first down-conversion is given gain adjustable amplifier and is amplified; 10. the signal after amplifying carries out the down-conversion second time, becomes the 1907MHz signal; (11) give filter after the signal of 1907MHz amplifies and be transmitted to mobile phone through cover antenna 2;
In up link: mobile phone signal through cover antenna 2 receive after give behind the transmit-receive switch down link the 2. arrive 10. part, through above-mentioned section processes after transmit-receive switch is transmitted to the PHS base station from donor antenna 1.
Fig. 4 is the circuit block diagram of individual channel, and as shown in Figure 5 and Figure 6, multi channel intelligent straight placement station is a plurality of single-channel combinations.
The explanation of switch operation principle such as Fig. 3:
1. in down link, when the base station when a certain time slot mobile phone in the intelligent straight placement station area of coverage signals, switching circuit 3 is thrown to donor antenna 1, in this time slot conducting, the signal that receives is after the oversampling circuit processing and amplifying, descending time slot at intelligent straight placement station is issued mobile phone with this signal through cover antenna 2, throws to cover antenna 2 at this descending time slot switching circuit 3, and the control signal of switch is provided by the central processor CPU in the circuit.
2. in up link, when mobile phone at a certain time slot when intelligent straight placement station is uploaded signal, switching circuit 3 crack is at this moment thrown to cover antenna 2, the signal that receives is after the oversampling circuit processing and amplifying, ascending time slot at intelligent straight placement station is issued the base station with this signal through donor antenna 1, throws to donor antenna 1 at this ascending time slot switch.The control signal of switch is provided by the central processor CPU in the circuit.
Said switching circuit 3 is a single-pole double-throw switch (SPDT), and the conversion speed of switch requires to select the switch of change-over time less than 20ns for use than higher like this.Switching circuit 3 also can adopt alternate manner, as double-pole single throw etc.
The operation instruction of antenna duplexer (seeing Fig. 5, Fig. 6): Fig. 4 uses figure for the antenna of individual channel, a donor antenna 1 and one side cover antenna 2 have been used, Fig. 5, Fig. 6, also be to use two pairs of antennas, donor antenna 1 and one side cover antenna 2 are by donor antenna of the several channel sharings of mixer 1 and one side cover antenna 2, two channels use two mixers, four channels use four mixers, reach the purpose of common antenna, must not increase antenna in addition.
The central processor CPU of foregoing circuit and baseband processing chip BBIC part can use special-purpose integrated package all to belong to the example of this method.Mobile phone can freely switch in the area of coverage that comes out to the base station from intelligent straight placement station in the intelligent straight placement station area of coverage or switch in the area of coverage of another intelligent straight placement station.
This equipment operation is reliable, because fully according to existing PHS communication protocol, compatible fully with the PHS system, can effectively solve the covering problem of PHS network signal blind area and weak signal area, can guarantee the device security reliability service, equipment installation, simple to operate easy, the indicator light that can pass through equipment is understood the ruuning situation of equipment, is easily understood.
The method invention improves in system design in the past, and operation of equipment is simple and convenient, dependable performance, solved preferably that intelligent straight placement station in the past can not solve fully that the PHS network signal covers and amplifying signal to the noisy problem of network.
Claims (10)
1, a kind of intelligent base station signal relay amplifies retransmission unit, comprise antenna and the relaying amplifying circuit that links to each other with antenna, it is characterized in that: described antenna comprises donor antenna (1) and cover antenna (2), the base station signal that described donor antenna is used for receiving inputs to the relaying amplifying circuit, and will send to the base station from the signal of relaying amplifying circuit output, the terminal signaling that described cover antenna is used for receiving inputs to the relaying amplifying circuit, and will send to terminal from the signal of relaying amplifying circuit output, described relaying amplifying circuit comprises switching circuit (3), when terminal is signaled in the intelligent base station signal relay amplifies the retransmission unit area of coverage in the base station, switching circuit switches to the donor antenna end, donor antenna and the conducting of relaying amplifying circuit; The signal that donor antenna receives is handled through the relaying amplifying circuit, when the intelligent base station signal relay amplify retransmission unit with this signal when cover antenna is issued terminal, switching circuit switches to cover antenna, relaying amplifying circuit and cover antenna conducting; When terminal when the intelligent base station signal relay amplifies retransmission unit and uploads signal, switching circuit switches to cover antenna, relaying amplifying circuit and cover antenna conducting, the signal that receives is through relaying amplifying circuit processing and amplifying, the intelligent base station signal relay amplify retransmission unit with this signal when donor antenna is issued the base station, switching circuit switches to donor antenna, donor antenna and the conducting of relaying amplifying circuit.
2, intelligent base station signal relay as claimed in claim 1 amplifies retransmission unit, it is characterized in that: described relaying amplifying circuit also comprises continuous successively: first filter circuit (4), first amplifying circuit (5), first mixting circuit (6), second filter circuit (7), second mixting circuit (8), baseband processing chip (BBIC) and central processing unit (CPU), first lower frequency changer circuit (9), second lower frequency changer circuit (10), the 3rd filter circuit (11) and second amplifying circuit (12), and be included as the local vibration source (13) that mixting circuits at different levels and lower frequency changer circuit provide local oscillation signal; The terminal that interrelates is a mobile phone, the input of described first filter circuit (4) is the received signal end, the output of second amplifying circuit (12) is the end that transmits, described local vibration source comprises a digital phase-locking oscillator phase, the frequency of oscillation control end of described oscillator links to each other with central processing unit, described local vibration source comprises first local oscillator (14), second local oscillator (15), has at least one to be tunable oscillator in wherein said first, second local oscillator (14,15).
3, intelligent base station signal relay as claimed in claim 2 amplifies retransmission unit, it is characterized in that: also comprise the 3rd amplifying circuit (18), it is between first lower frequency changer circuit and second lower frequency changer circuit, its amplifying power is adjustable, and the control end of the 3rd amplifying circuit (18) links to each other with central processing unit.
4, intelligent base station signal relay as claimed in claim 3 amplifies retransmission unit, it is characterized in that: described intelligent base station signal relay amplifies retransmission unit and comprises first, second mixer (16,17), one end of first mixer (16) and second mixer (17) is connected to donor antenna (1) and cover antenna (2) respectively, and their other end is connected to first port and second port of switching circuit (3) respectively.
5, a kind of intelligent base station signal relay amplifies retransmission method, utilizes the intelligent base station signal relay to amplify retransmission unit and signal of base station is carried out relaying amplifies, and it is more weak or do not have a zone of signal to cover signal; Signal is more weak or do not have the terminal signaling in the zone of signal to amplify to be transmitted to the base station, it is characterized in that: the intelligent base station signal relay amplifies retransmission unit and selects donor antenna (1) separately for use, cover antenna (2) and relaying amplifying circuit, described relaying amplifying circuit selects for use switching circuit (3) to link to each other with cover antenna (2) with donor antenna (1) respectively, comprise the steps: 1) in the base station when the intelligent base station signal relay amplifies retransmission unit and signals, switching circuit is switched to the donor antenna end, donor antenna and the conducting of relaying amplifying circuit, 2) signal of described donor antenna reception is handled through the relaying amplifying circuit, 3) the intelligent base station signal relay amplify retransmission unit with treated signal when cover antenna is issued terminal, switching circuit is switched to cover antenna, relaying amplifying circuit and cover antenna conducting, 4) in terminal when the intelligent base station signal relay amplifies retransmission unit and uploads signal, switching circuit is switched to cover antenna, relaying amplifying circuit and cover antenna conducting, 5) signal of described cover antenna reception is through relaying amplifying circuit processing and amplifying, 6) when the intelligent base station signal relay amplify retransmission unit with the signal handled when donor antenna is issued the base station, switching circuit is switched to donor antenna, donor antenna and the conducting of relaying amplifying circuit.
6, intelligent base station signal relay as claimed in claim 5 amplifies retransmission method, it is characterized in that: when getting in touch with base station foundation, find the strongest base station of idle time slot and field intensity as amplifying the donor base station that retransmission unit communicates, generate a base station code simultaneously with the intelligent base station signal relay; When the base station of peak signal does not have idle channel, select the donor base station of time base station of strong signal for use as relaying amplification retransmission unit, also there is not idle channel as this base station, Using such method is analogized again, till finding the base station that idle channel is arranged.
7, amplify retransmission method as claim 5 or 6 described intelligent base station signal relay, it is characterized in that: the intelligent base station signal relay amplifies retransmission unit when getting in touch with terminal foundation, by automatic interception system, search out the most weak frequency of field intensity and amplify the carrier frequency of retransmission unit and terminal communication, will amplify retransmission unit through the intelligent base station signal relay from the information of base station and be transmitted to terminal as the intelligent base station signal relay.
8, intelligent base station signal relay as claimed in claim 7 amplifies retransmission method, it is characterized in that: choose mobile phone as terminal.
9, intelligent base station signal relay as claimed in claim 8 amplifies retransmission method, it is characterized in that: utilize first mixer (16) and second mixer (17) respectively, make donor antenna (1) carry out a plurality of channel communications, make cover antenna (2) carry out a plurality of channel communications through second mixer through first mixer (16).
10, intelligent base station signal relay as claimed in claim 9 amplifies retransmission method, it is characterized in that: utilize adjustable amplifying circuit, the watt level that the signal that intelligent base station signal relay amplification retransmission unit is received amplifies and regulate its output.
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| CN 03117852 CN1219410C (en) | 2003-05-07 | 2003-05-07 | Intelligent base station signal relay amplifying and transmitting device and method |
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| CN 03117852 CN1219410C (en) | 2003-05-07 | 2003-05-07 | Intelligent base station signal relay amplifying and transmitting device and method |
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| CN1219410C true CN1219410C (en) | 2005-09-14 |
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| WO2007128206A1 (en) * | 2006-04-29 | 2007-11-15 | Alcatel Lucent | Relay station, base station and method for extending a coverage area of a base station in a radio network |
| CN100370711C (en) * | 2006-01-24 | 2008-02-20 | 京信通信技术(广州)有限公司 | TD-SCDMA repeater system for third generation mobile communication system |
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- 2003-05-07 CN CN 03117852 patent/CN1219410C/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100370711C (en) * | 2006-01-24 | 2008-02-20 | 京信通信技术(广州)有限公司 | TD-SCDMA repeater system for third generation mobile communication system |
| WO2007128206A1 (en) * | 2006-04-29 | 2007-11-15 | Alcatel Lucent | Relay station, base station and method for extending a coverage area of a base station in a radio network |
| US8345587B2 (en) | 2006-04-29 | 2013-01-01 | Alcatel Lucent | Relay station, base station and method for extending a coverage area of a base station in a radio network |
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| CN1487758A (en) | 2004-04-07 |
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