CN1688117A - Carrier dispatching mobile communication repeater - Google Patents
Carrier dispatching mobile communication repeater Download PDFInfo
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- CN1688117A CN1688117A CN 200510018692 CN200510018692A CN1688117A CN 1688117 A CN1688117 A CN 1688117A CN 200510018692 CN200510018692 CN 200510018692 CN 200510018692 A CN200510018692 A CN 200510018692A CN 1688117 A CN1688117 A CN 1688117A
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Abstract
This invention relates to a carrier control mobile communication direct play station including a near-end, a far-end device and a network management platform, among which, said near-end device selects down-stream signals of the mobile communication based on the needs to be emitted together with the monitor signals by the fiber via a light receive/emit integrated module, the far-end device receives the light signals and transfers them to network signals and expands them to the mobile communication blind zone. The theory of the up direction is the same with that of the down direction, which applies the carrier control technology to solve the problem of traffic movement, with the advantage of dynamically allocating radio network resources conveniently, optimizing the system and dispatching RF signals flexibly.
Description
Technical field
The present invention relates to the carrier dispatching mobile communication relay system, just carrier dispatching mobile communication repeater is also referred to as the type of respiration repeater, is used to solve wireless network planning and the idle problem of carrier frequency the when repeated construction of base station and low telephone traffic when optimizing.
Background technology
Along with the fast development of mobile communication cause, be to gather in the base station in the network of each operator, particularly use the base station to do after the indoor covering, base station and carrier frequency use amount are surprising, are difficult to further dilatation.The Cellular Networks structures shape of mobile communications network the capacity of the whole network derive from the summation of the resource of each sub-district because the cell carrier frequencies resource-constrained can't be born the variation of telephone traffic significantly, particularly when bursts of traffic, cause network congestion very easily easily.
By the capacity and the telephone traffic situation of observing whole networking, we find in whole wireless network is built, the total capacity of all base station equipments still still solves with regard to its capacity problem of whole network fully more than mobile subscriber's the big manyfold of actual use amount.Its main cause is that the user moves.
In traditional urban network planning, network capacity when sector capacity configuration is used the peak according to the one's respective area user often requires to design, and moves to and must go to build base station system in other zone again after other zone is gone and satisfy capacity requirement when people leave the one's respective area.If all users do irregular moving completely, its base station load is balanced for whole system so, and its channel utilization also is higher.But finding that by statistical analysis modern life people's mobility is very big, and usually is clocklike, therefore caused the variation of the peaked traffic amount of each base station, also is clocklike.Hang down the traffic period when local sector coverage is in like this, the capacity of its base station has just been wasted.So just caused the base station capacity construction that repeats, also made conventional base station capacity redundancy.For example all there be base station leaving unused in regular hour and cycle in office building, business district, residential quarters, food and drink public place of entertainment, sports equipment place etc.
The idle problem of carrier frequency during for the repeated construction that solves the base station and low telephone traffic, we have proposed the notion of carrier dispatching repeater.Be exactly Changing Pattern, realize the time-sharing multiplex of the redundancy capacity between different base station or fan, thereby realize that carrier frequency scheduling reaches the purpose that shifts traffic fast according to the telephone traffic between different base station or the sector.
Summary of the invention
The objective of the invention is in order to overcome the repeated construction of existing base station, and the idle phenomenon of irrational carrier frequency, particularly under the prerequisite that is becoming tight carrier frequency resource day, some sub-district occurs congested because telephone traffic significantly changes, and near base station is when also having idle carrier frequency, a kind of carrier dispatching mobile communication repeater is provided, makes network capacity can follow the mobile of crowd and shift, make channel resource to be fully used.
Carrier dispatching mobile communication repeater, whole system comprise proximal device and remote equipment and carrier dispatching network management platform, can come to determine near-end and remote equipment number in every complete equipment according to the actual requirements, can one-to-one, also can one drag many.Synergistic being characterised in that between its near-end and the far-end: at down direction, this system's near-end obtains mobile communication communication network signal by coupler, at first pass through duplexer filter filtering, can carry out the selection of frequency range/frequency as required to CF signal after this, the pilot signal 433MHzFSK that then enters light transceiving integrated module and near-end master monitoring panel closes the road, then be modulated to light signal, enter optical fiber at last and grow propagation; The light signal that light transceiving integrated module in system's far-end is sent optical fiber here is demodulated into the power amplifier of sending into subordinate after radiofrequency signal is also amplified, simultaneously pilot signal is wherein separated and given the far-end master monitoring panel, radiofrequency signal is amplified into duplexer filter filtering through power amplifier, go out complete machine at last and insert exterior antenna, the area that traffic demand is arranged is covered; At up direction, the exterior antenna that transmits by system's far-end of travelling carriage enters duplexer filter filtering, equally also can come the frequency-selecting of radiofrequency signal as required with down link.Be modulated to light signal after the pilot signal that enters light transceiving integrated module and far-end via the low noise amplifying element closes the road then, enter optical fiber at last and go out complete machine; Near-end at first is demodulated into radiofrequency signal with light transceiving integrated module with light signal, and pilot signal that will be wherein separates and deliver to monitoring panel in order to inquiry control, and radiofrequency signal is at last through going out complete machine and enter the base station by coupler after the duplexer filter filtering.
In order to realize the function of carrier dispatching.Need carry out unified coordination control to whole system.Utilize the carrier dispatching network management system that matches with it, integral body is monitored with the mode of short message and dialing.Regard proximal device and its corresponding remote equipment as one " group ".Monitor supervision platform can be provided with the device parameter of himself and far-end thereof by arbitrary near-end during debugging.
The carrier dispatching system is near, the monitoring panel of far-end carries out parameters control realizes carrier scheduling function thereby the mode of carrier dispatching network management monitoring platform by note or dialing is to being installed in respectively, and near as previously mentioned, remote monitoring dish communication is to be that the mode of frequency shift keying fsk realizes by adopting the frequency modulation(FM) mode that pilot signal is modulated to 433Mhz.The near-end monitoring panel is taken turns the remote monitoring dish and is sought the formula monitoring, comprising data acquisition, control, alarm report work, so the remote monitoring dish is the passive type communication mode for the near-end monitoring panel.It is the monitoring panel signal to be debugged on the radio frequency and finished by the mode that the coupling aperture of duplexer is delivered to the base station by modulator-demodulator Modem that the main monitoring panel of center webmaster and near-end is communicated by letter.Can be provided with by monitoring interface, inquiry is near, every running parameter of each module of far-end, alarm status or the like, can also be to LNA, and the switching value of power amplifier is provided with.In sum, determine the quantity of required carrier frequency by monitor supervision platform, frequency/frequency point ranges, then in conjunction with descending power amplifier, the on off state of up LNA determines whether that the idle carrier frequency that near-end is coupled to is delivered to far-end to remove to carry out wireless communication networks and cover.Realize carrier scheduling function thus.
Come transmitting signal by optical fiber between the proximal device of carrier dispatching repeater and the remote equipment.The descending light wave of light transceiving integrated module in the proximal device adopts 1550nm, and luminous power is about 3dbm, and far-end is received luminous power should differ by more than 5dbm than the luminous power of near-end optical module.The uplink optical signal wavelength of far-end optical transceiver module is 1310nm.
Adopting serial line interface RS485 communication mode is a big characteristic of this direct discharging station.Along with the development and the increasingly extensive application of computer of digital technology, need to solve the problem of multistation, telecommunication.The RS485 transceiver adopts balance to send and differential received, therefore has the ability of stronger inhibition common mode disturbances.Use the RS485 bus, a pair of twisted-pair feeder just can be realized the multistation networking, constitutes distributed system.Transmission signals adds that receiver has high sensitivity, can detect the low voltage that reaches 200mV, so can be restored at the receiving terminal beyond thousands of rice.The internal surveillance system of this carrier dispatching repeater, the RS485 structure of Cai Yonging just.Therefore, this monitoring has very strong antijamming capability, and ten minutes is networking mode easily, and stability also improves greatly than traditional RS232 system.
Native system is operated in the main frequency range of China Mobile, these mobile communication system comprise Tetra (Terrestrial Trunked Radio) digital clustering communication system, code division multiple access CDMA (CodeDivision Multiple Access) 800M public access mobile radio, GSM (Globe Systemfor Mobile) 900M public access mobile radio, digital communication DCS (DigitalCommunication System) 1800M public access mobile radio, and WCDMA (Wide-Band CDMA) third generation public access mobile radio in the future, CDMA2000 third generation public access mobile radio, TD-SCDMA (Time Division-Synchronous CDMA) third generation public access mobile radio, concrete working frequency range such as following table:
| System's kind | Frequency range | Remarks | |
| Up | Descending | ||
| The Tetra network | 806-821MHz | 851-866MHz | Digit cluster communication system |
| The CDMA800M network | 825-835MHz | 870-880MHz | |
| The GSM900M network | 890-915MHz | 935-960MHz | |
| The DCS1800M network | 1710-1755 MHz | 1805-1850MHz | |
| The WCDMA/CDMA2000 network | ????1920-1980 ????MHz | ????2110-2170 ????MHz | The groundwork frequency range |
| ????1755-1785 ????MHz | ????1850-1880 ????MHz | Replenish working frequency range | |
| The TD-SCDMA network | ????1880-1920MHz，2010-2025 ????MHz | The groundwork frequency range | |
| ????2300-2400MHz | Replenish working frequency range | ||
Advantage of the present invention can utilized valuable wireless network resource flexibly economically, and is specific as follows:
(1) can utilize the wireless communication networks resource to greatest extent, the base station construction (2) of avoiding repetition is for only big traffic demand being arranged and idle zone most of the time in particular moment, gymnasium as city suburbs and counties under the jurisdiction of a large city, the construction base station is uneconomical, can use the carrier resource in other idle zones in the busy moment, otherwise, the carrier resource that this zone had both been built is dispatched to support the zone of resource anxiety perhaps at this regional idle period.(3) the powerful convenience of monitoring function can directly be finished every setting of carrier dispatching at the network management monitoring platform, can manually according to circumstances dispatch, and the timing automatic scheduling also can be set according to stable traffic measurement.(4) adopt the monitoring of RS485 communication mode make the stability of whole system and ease for use all be improved (5) can freely select the quantity of required carrier frequency as required, frequency/frequency range is set.(6) pilot signal with the 433MHzfsk signal between near, the far-end by spread fiber, convenient and reliable.(7) application of this repeater is very flexible, both can adopt this system without the area that covers to one, also can when being optimized, adopt on existing network, under latter event, only need to add a carrier dispatching system near-end, add remote termination in the zone of needs covering or carrier frequency anxiety and get final product at comparatively idle carrier frequency resource place.
Description of drawings
Fig. 1 is the carrier dispatching mobile communication repeater schematic diagram.
Fig. 2 realizes block diagram for the carrier dispatching mobile communication repeater near-end.
Fig. 3 realizes block diagram for the carrier dispatching mobile communication repeater far-end.
Embodiment
1 the invention will be further described in conjunction with the accompanying drawings.
Whole wireless telecommunications carrier dispatching repeater comprises proximal device and remote equipment and network management platform, at down direction, near-end obtains mobile communication communication network signal by coupler, at first pass through duplexer filter filtering, can carry out the selection of frequency range/frequency as required to CF signal after this, the pilot signal 433MHz FSK that the radiofrequency signal that obtains enters light transceiving integrated module and near-end master monitoring panel closes the road, then be modulated to light signal, enter optical fiber at last and grow propagation; The light signal that light transceiving integrated module in the far-end is sent optical fiber here is demodulated into the power amplifier of sending into subordinate after radiofrequency signal is also amplified, simultaneously pilot signal is wherein separated and given the far-end master monitoring panel, radiofrequency signal is amplified into duplexer filter filtering through power amplifier, goes out complete machine access exterior antenna at last the zone that traffic demand or carrier resource anxiety are arranged is covered; At up direction, the exterior antenna that transmits by far-end of travelling carriage enters duplexer filter filtering, equally also can come the frequency-selecting of radiofrequency signal as required with down link, entering LNA then amplifies, be modulated to light signal after the pilot signal that then enters light transceiving integrated module and far-end closes the road, enter optical fiber at last and go out complete machine; Near-end at first is demodulated into radiofrequency signal with light transceiving integrated module with light signal, and pilot signal that will be is wherein separated and adjustability control that radiofrequency signal is necessarily amplified or decay, and radiofrequency signal goes out complete machine and enters to be transferred to the mobile communication base station by coupler after passing through duplexer filter filtering at last.Whole system all under the monitoring of carrier dispatching network management platform, is dispatched carrier resource if desired, only need operate accordingly on network management platform.
This system can be operated in the main frequency range of China Mobile, these mobile communication system comprise Tetra digital clustering communication system, CDMA800M public access mobile radio, GSM900M public access mobile radio, DCS1800M public access mobile radio, and WCDMA third generation public access mobile radio, CDMA2000 third generation public access mobile radio, TD-SCDMA third generation public access mobile radio in the future, concrete working frequency range such as following table:
| System's kind | Frequency range | Remarks | |
| Up | Descending | ||
| The Tetra network | 806-821MHz | ?851-866MHz | Digit cluster communication system |
| The CDMA800M network | 825-835MHz | ?870-880MHz | |
| The GSM900M network | 890-915MHz | ?935-960MHz | |
| The DCS1800M network | 1710-1755 MHz | ?1805-1850MHz | |
| The WCDMA/CDMA2000 network | 1920-1980 MHz | ?2110-2170 ?MHz | The groundwork frequency range |
| 1755-1785 MHz | ?1850-1880 ?MHz | Replenish working frequency range | |
| The TD-SCDMA network | 1880-1920MHz，2010-2025 MHz | The groundwork frequency range | |
| 2300-2400MHz | Replenish working frequency range | ||
In conjunction with the accompanying drawings 2 and 3 pairs of FDD systems of accompanying drawing in the free-space optical transmission mobile communication system be described further.
In this carrier dispatching repeater, it is comparatively idle or in the lower zone of some period telephone traffic that near-end always is placed on carrier resource, far-end then is placed on the carrier resource anxiety, or the place of the telephone traffic demand of sudden growth is arranged in some particular moment according to traffic statistic.Then under the management of monitoring network management platform, when remote area needs carrier resource, the carrier resource of near-end can be arrived again the target coverage zone of remote termination via Optical Fiber Transmission by the selection regulation and control of near-end machine.After go on the telephone traffic peak of far-end, perhaps when the zone at near-end place needs carrier resource, can close remote equipment by network management platform, perhaps reduce the carrier frequency quantity of supporting remote equipment, satisfy the covering demand of near-end region.Monitor supervision platform both can be dispatched configuration to the Internet resources of carrier dispatching repeater immediately.Also can carrier dispatching regularly be set according to reliable traffic statistic.
Claims (6)
1, a kind of carrier dispatching mobile communication repeater, whole system comprises proximal device, remote equipment and network management platform, it is characterized in that: at down direction, this system's near-end is from obtaining mobile communication communication network signal by electric coupling in the air or directly, carry out the selection of required carrier frequency then as required, again with this radiofrequency signal with pilot signal, be modulated on the laser signal and launch, remote equipment changes it into mobile communications network signal after receiving laser signal; Up direction Signal Processing process and down direction are identical, the antenna-feedback system of far-end receives the uplink network signal, through duplexer filter filtering, the same with down link, come the frequency-selecting of radiofrequency signal as required, enter the low noise amplification module then and amplify, be modulated to light signal after the pilot signal that then enters light transceiving integrated module and far-end closes the road, enter optical fiber at last and go out complete machine; Near-end at first is demodulated into radiofrequency signal with light transceiving integrated module with light signal, and pilot signal that will be is wherein separated and radiofrequency signal is necessarily amplified or the adjustability control of decay or switch, and radiofrequency signal is at last through going out complete machine and enter the base station by coupler after the duplexer filter filtering.
2, carrier dispatching mobile communication repeater according to claim 1, it is characterized in that: at down direction, the proximal device of this system is from aerial reception or a part of radio frequency rf signal that directly is coupled from the base station, carry out filtering, frequency-selecting, pilot signal via light transceiving integrated module and near-end master monitoring panel closes the road again, then be modulated to light signal, signal after the modulation is that wavelength is the light wave of 1550nm, enter optical fiber at last and grow propagation, the light signal that light transceiving integrated module in the remote equipment is sent optical fiber here is demodulated into the power amplifier of sending into subordinate after radiofrequency signal is also amplified, simultaneously pilot signal is wherein separated and given the far-end master monitoring panel, signal is gained, decay, and the setting of switching value, radiofrequency signal is amplified into duplexer filter filtering through power amplifier, goes out complete machine at last and inserts exterior antenna; At up direction, Signal Processing process and down direction are identical, the uplink network signal of the antenna-feedback system receiving mobile of far-end, be modulated to light signal after closing the road through the laggard pilot signal of going into light transceiving integrated module and far-end of radio frequency processing such as filtering and low noise amplification, its wavelength of light signal that light transceiving integrated module in the remote termination modulates out is 1310nm, and the last remote termination of this light signal enters optical fiber and carries out long-distance communications; Near-end at first is demodulated into radiofrequency signal with light transceiving integrated module with the light light signal of the 1310nm wavelength that receives, and pilot signal that will be is wherein separated and adjustability control that radiofrequency signal is necessarily amplified or decay, and radiofrequency signal goes out complete machine and enters the base station by coupler after passing through duplexer filter filtering at last.
3, according to claim 1 or 2 described carrier dispatching mobile communication repeaters, it is characterized in that: the demand according to wireless network communication of proximal device is selected carrier frequency quantity and frequency/frequency, whether decision delivers to the telephone traffic that far-end removes to absorb far-end with the base station signal that obtains, mode by note and dialing is to the radiofrequency signal amplification of far-end or the inquiry of decay and operating state, carry out monitoring completely, carry out far-end shutoff artificial or regularly according to traffic statistic by the carrier dispatching network management platform, thereby realization carrier dispatching, remote equipment receives into upward signal, changes the status messages proximal device of light signal together with self into.
4, according to claim 1 or 2 described carrier dispatching mobile communication repeaters, it is characterized in that: use optical fiber to connect between near, the remote equipment, use oblique octave end face FC/APC inclined-plane tail optical fiber for machine intimate optical transceiver module interface; Go out apparatus optical fiber and then use FC/PC plane optical fiber, wherein the optical wavelength of down link is 1550nm, and the optical wavelength of up link is 1310nm.
5, according to the carrier dispatching mobile communication repeater described in claim 1 or 2, it is characterized in that: near, remote monitoring dish communication is that the mode by frequency shift keying fsk realizes, the near-end monitoring panel carries out the monitoring of poll formula to the remote monitoring dish, the remote monitoring dish is the passive type communication mode for the near-end monitoring panel, and it is by modulator-demodulator Modem the monitoring panel signal to be debugged on the radio frequency and by the coupling aperture of duplexer to deliver to the base station that the main monitoring panel of center network management platform and near-end is communicated by letter.
6 according to the carrier dispatching mobile communication repeater described in claim 1 or 2, it is characterized in that: the network management monitoring platform adopts serial line interface RS485 communication mode.
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| CN 200510018692 CN1688117A (en) | 2005-05-12 | 2005-05-12 | Carrier dispatching mobile communication repeater |
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| CN 200510018692 CN1688117A (en) | 2005-05-12 | 2005-05-12 | Carrier dispatching mobile communication repeater |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101420768B (en) * | 2008-12-03 | 2010-11-03 | 武汉虹信通信技术有限责任公司 | Adaptive parsing method for network management monitoring protocol of repeater |
| CN101384067B (en) * | 2008-10-17 | 2011-12-07 | 京信通信系统（中国）有限公司 | Carrier channel router |
| CN101370236B (en) * | 2008-09-12 | 2011-12-14 | 中国移动通信集团江苏有限公司 | Method for triggering carrier frequency scheduling based on telephone traffic |
| CN102377027A (en) * | 2010-08-27 | 2012-03-14 | 大唐移动通信设备有限公司 | Active antenna and method for calibrating active antenna |
| CN101420755B (en) * | 2008-10-17 | 2012-04-18 | 京信通信系统（中国）有限公司 | Carrier channel scheduling method and call traffic detection method |
| CN101771435B (en) * | 2009-01-05 | 2013-01-02 | 电信科学技术研究院 | Multi-carrier aggregation system and method thereof for selecting uplink reference signals |
| CN101742671B (en) * | 2009-12-11 | 2013-01-30 | 泉州市迈韦通信技术有限公司 | Wireless digital repeater station with carrier scheduling function and method for realizing carrier scheduling |
| CN103078669A (en) * | 2013-02-25 | 2013-05-01 | 河北人天通信技术有限公司 | Signal distribution system based on power carrier waves |
-
2005
- 2005-05-12 CN CN 200510018692 patent/CN1688117A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101370236B (en) * | 2008-09-12 | 2011-12-14 | 中国移动通信集团江苏有限公司 | Method for triggering carrier frequency scheduling based on telephone traffic |
| CN101384067B (en) * | 2008-10-17 | 2011-12-07 | 京信通信系统（中国）有限公司 | Carrier channel router |
| CN101420755B (en) * | 2008-10-17 | 2012-04-18 | 京信通信系统（中国）有限公司 | Carrier channel scheduling method and call traffic detection method |
| CN101420768B (en) * | 2008-12-03 | 2010-11-03 | 武汉虹信通信技术有限责任公司 | Adaptive parsing method for network management monitoring protocol of repeater |
| CN101771435B (en) * | 2009-01-05 | 2013-01-02 | 电信科学技术研究院 | Multi-carrier aggregation system and method thereof for selecting uplink reference signals |
| CN101742671B (en) * | 2009-12-11 | 2013-01-30 | 泉州市迈韦通信技术有限公司 | Wireless digital repeater station with carrier scheduling function and method for realizing carrier scheduling |
| CN102377027A (en) * | 2010-08-27 | 2012-03-14 | 大唐移动通信设备有限公司 | Active antenna and method for calibrating active antenna |
| CN103078669A (en) * | 2013-02-25 | 2013-05-01 | 河北人天通信技术有限公司 | Signal distribution system based on power carrier waves |
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