CN201307942Y - Wireless zone center where RRH (remote radio head) systems realize covering - Google Patents
Wireless zone center where RRH (remote radio head) systems realize covering Download PDFInfo
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- CN201307942Y CN201307942Y CNU2008202006356U CN200820200635U CN201307942Y CN 201307942 Y CN201307942 Y CN 201307942Y CN U2008202006356 U CNU2008202006356 U CN U2008202006356U CN 200820200635 U CN200820200635 U CN 200820200635U CN 201307942 Y CN201307942 Y CN 201307942Y
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- 238000000034 method Methods 0.000 claims abstract description 4
- 230000006855 networking Effects 0.000 claims description 28
- 239000013307 optical fiber Substances 0.000 claims description 10
- 239000012141 concentrate Substances 0.000 claims description 7
- 238000010276 construction Methods 0.000 abstract description 14
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 7
- 238000010295 mobile communication Methods 0.000 description 7
- 241000723353 Chrysanthemum Species 0.000 description 4
- 235000007516 Chrysanthemum Nutrition 0.000 description 4
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- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000004891 communication Methods 0.000 description 1
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Abstract
The utility model discloses a wireless zone center where RRH systems realize covering. The wireless zone center comprises a BSC (base station controller), BTSs (base transceiver stations) and the RRH systems. One BSC is connected with a plurality of BTSs at the same time, carrier frequency of each BTS is centralized in a center base station, and each BTS respectively covers target residential zones in a corresponding manner by each RRH system. The wireless zone center centralizes the carrier frequency of a plurality of base stations in the center base station to finish construction; by adopting the one-to-multipoint method of the RRH systems, the plurality of base stations of the original covered zone are replaced by a plurality of remote end equipment of the RRH systems, so as to reduce difficulty level of network construction, speed up the construction, reduce investment and maintenance, improve efficiency of maintenance and resources, and solve the problem of unexpected telephone traffic volume.
Description
Technical field
The utility model relates to the networking technology of mobile communications network (GSM) base station sub-system (BSS), relates in particular to the radio block center that radio frequency stretch system is realized covering.
Background technology
Mobile communications network basically can separated into two parts: switching subsystem (MSC) and base station sub-system (comprising base station controller BSC, base station BTS and user terminal MS).There is a base transceiver station (BTS) each sub-district, and several BTS are controlled by a BSC, and a mobile services switching centre is a plurality of base station controller BSC services.Fig. 1 is the existing mobile communication network structural representation, and covering is finished by macrocell base stations in each overlay area; Fig. 3 is the equipment of existing macrocell base stations computer room construction and the schematic diagram of auxiliary facility, utilize macrocellular to realize that the BSS shortcoming of all standing is: to need to build a large amount of macrocell base stations, slowed down the speed of networking, simultaneously, need be for macrocell base stations be equipped with corresponding auxiliary facility, equipment investment is big.
Existing gsm wireless subsystem normally divides fan to build a station, and every station is divided into 3 sectors, and each sector covers certain zone, and capacity is relevant with every sector carrier frequency quantity.Fig. 6 is the carrier capacity of each base station in the existing base station networking, if the phenomenon of bursts of traffic amount has taken place in zone two, because the carrier capacity of regional two base stations only is two carrier frequency, per hour can only bear 7.4 Irish telephone traffics, when the overlay area total traffic surpass 7.4 Ireland/hour, will cause phenomenons such as network blockage, the network index rapid deterioration.
Along with mobile communication rapid development, in order to satisfy ever-increasing customer requirements, pursue the seamless covering that realizes full service area, mobile communications network will carry out continuous dilatation, increase coverage cell, this just needs to increase a large amount of mobile communication equipment and corresponding auxiliary facility, at this situation, we be necessary to propose a kind of can satisfy cover the effective networking mode that requires can save in a large number again the investment of mobile device and auxiliary facility.
The utility model content
The purpose of this utility model is to overcome the shortcoming of prior art with not enough, propose a kind of radio frequency stretch system and realized the radio block center of covering, radio block center concentrates on the carrier frequency of a plurality of base stations in the center base station and finishes construction, mode by a pair of multiple spot of radio frequency stretch system, a plurality of base stations of former overlay area are replaced by a plurality of remote equipment of corresponding radio frequency stretch system, thereby reduce the networking difficulty, improve construction speed; Reduce investment; Reduce maintenance, improve maintenance efficiency; Improve resource efficiency, solve bursts of traffic amount problem.
The purpose of this utility model is achieved through the following technical solutions: this radio frequency stretch system is realized the radio block center of covering, comprise base station controller BSC, base transceiver station BTS, radio frequency stretch system, a described base station controller BSC is connected simultaneously with a plurality of base transceiver station BTS, and the carrier frequency of each base transceiver station BTS concentrates in the center base station; Each base transceiver station BTS is corresponding respectively to be covered Target cell by each radio frequency stretch system.
For realizing the utility model better, described each radio frequency stretch system comprises that to the Target cell coverage mode independently employing is perhaps adopted any permutation and combination method of above-mentioned two kinds of networking modes a bit to the star-like networking mode of multiple spot or the daisy chain networking mode of point-to-point chain.
When the utility model adopts above-mentioned any networking mode; each remote termination of each radio frequency stretch system is connected with corresponding near-end machine by main road optical fiber respectively; each remote termination forms articulating by the final stage remote termination by standby optical fiber and corresponding near-end machine, thereby makes network have the automatic loop circuit defencive function.
The utility model compared with prior art has following advantage and beneficial effect:
1, reduces the networking difficulty, improve construction speed
The radio frequency stretch system that gsm wireless regional center capped end adopts has replaced former base station, has reduced the requirement of computer room construction or has cancelled computer room construction, has significantly reduced the cycle of building a station, for the mobile communications network high speed development has won the quality time.
2, reduce investment
The radio frequency stretch system then requirement condition to machine room and auxiliary facility is very low, as long as laying optical fiber and power supply just can make the equipment operate as normal.
3, reduce maintenance, improve maintenance efficiency
The construction form of radio block center is that construction is concentrated in base station and carrier frequency equipment, and this has just reduced the construction number of base station, and this also will shorten greatly safeguards the response time, improves and safeguards and patrol and examine efficient.
4, improve resource efficiency, solve bursts of traffic amount problem
The gsm wireless regional center is to concentrate the mode of building the base station, so just can concentrate carrier frequency to the full extent,, the carrier frequency of free time be regulated and control flexibly by center base station to the area of bursts of traffic amount, increase traffic burst regional coverage carrier frequency, effectively solve bursts of traffic amount problem.
5, networking mode flexibly, the automatic loop circuit defencive function
Radio block center can implement a bit the star-like networking mode of multiple spot is also had the daisy chain networking function of point-to-point chain, and can pass through standby optical fiber articulating, makes network have the automatic loop circuit defencive function.
Description of drawings
Fig. 1 is the networking structure schematic diagram of existing mobile base station;
Fig. 2 is the structural representation that the utility model radio frequency stretch system is realized the flexible networking mode that the radio block center of covering adopts, comprising star-like, chrysanthemum chain, chrysanthemum chain+star-like, automatic loop circuit protected mode;
Fig. 3 is the equipment and the auxiliary facility schematic diagram of existing computer room construction;
Fig. 4 is that the utility model radio frequency stretch system is realized overlay device and auxiliary facility schematic diagram;
Fig. 5 is the wireless resource utility efficiency schematic diagram;
Fig. 6 is the carrier capacity schematic diagram of each base station in the existing base station networking mode;
Fig. 7 is the capacity schematic diagram that the utility model radio frequency stretch system is realized covering.
Embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but execution mode of the present utility model is not limited thereto.
Embodiment
This radio frequency stretch system is realized the radio block center of covering, comprise base station controller BSC, base transceiver station BTS, radio frequency stretch system, a described base station controller BSC is connected simultaneously with a plurality of base transceiver station BTS, and the carrier frequency of each base transceiver station BTS concentrates in the center base station; Each base transceiver station BTS is corresponding respectively to be covered Target cell by each radio frequency stretch system.
As shown in Figure 2, described radio frequency stretch system is made up of a near-end machine (DAU) and several far-end machine (DRU), radio frequency stretch system covers described each radio frequency stretch system to Target cell the Target cell coverage mode is comprised independent the employing a bit the star-like networking mode of multiple spot or the daisy chain networking mode of point-to-point chain, perhaps adopt any permutation and combination method of above-mentioned two kinds of networking modes to realize (as shown in Figure 2, present embodiment has adopted daisy chain, daisy chain+daisy chain, chrysanthemum chain+star-like compound mode, wherein, m is that radio frequency zooms out star-like number of connection, and n is that radio frequency zooms out chrysanthemum chain number of connection).In each networking mode; when adopting above-mentioned any networking mode; each remote termination of each radio frequency stretch system is connected with corresponding near-end machine by main road optical fiber respectively; each remote termination forms articulating by the final stage remote termination by standby optical fiber and corresponding near-end machine; when DRU opens a way to any one-level of the main road optical fiber between the DRU; as long as standby optical fiber is intact, all right operate as normal of whole communication link, thus make network have the automatic loop circuit defencive function.
Shown in Fig. 1,2, the networking mode of radio block center can significantly reduce the computer room construction of macrocell base stations, and this has also just accelerated networking speed.
Shown in Fig. 3,4, the networking mode of radio block center can reduce the corresponding auxiliary facility of macrocell base stations, reduces and has saved equipment investment.
As shown in Figure 5, calculate and to draw according to the Eug table, be under 2% the situation in call loss, about channel utilization when 4CH is 72%, about channel utilization when 8CH is 80%, and about the channel utilization when 16CH is 90%, this shows that the increase channel utilization along with the carrier frequency number increases thereupon.So, improved the carrier capacity and the radio carrier frequency utilance of the area of coverage by concentrating the mode of building center base station.
As shown in Figure 6, if the phenomenon of bursts of traffic amount has taken place in zone two, because the carrier capacity of regional two base stations limits, can't bear the telephone traffic of burst, this will cause phenomenons such as network blockage, and network index sharply descends.
As shown in Figure 7, because former regional two and regional three carrier module concentrates in the machine room in zone one, these three regional total capacities do not reduce, and after zone two or the burst of regional three intensity of traffic offereds, can in central machine room, carry out relative dilatation to the telephone traffic burst area and cover, so just under the prerequisite that does not increase total capacity, solve the telephone traffic burst phenomenon in some areas neatly by the idle carrier wave of allocating other zones.
As mentioned above; just can realize the utility model preferably; the foregoing description is the utility model preferred implementation; but execution mode of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present utility model and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within the protection range of the present utility model.
Claims (3)
1, radio frequency stretch system is realized the radio block center of covering, it is characterized in that: comprise base station controller BSC, base transceiver station BTS, radio frequency stretch system, a described base station controller BSC is connected simultaneously with a plurality of base transceiver station BTS, and the carrier frequency of each base transceiver station BTS concentrates in the center base station; Each base transceiver station BTS is corresponding respectively to be covered Target cell by each radio frequency stretch system.
2, realize the radio block center of covering according to the described radio frequency stretch system of claim 1, it is characterized in that: described each radio frequency stretch system comprises that to the Target cell coverage mode independently employing is perhaps adopted any permutation and combination method of above-mentioned two kinds of networking modes a bit to the star-like networking mode of multiple spot or the daisy chain networking mode of point-to-point chain.
3, realize the radio block center of covering according to the described radio frequency stretch system of claim 2, it is characterized in that: when adopting above-mentioned any networking mode, each remote termination of each radio frequency stretch system is connected with corresponding near-end machine by main road optical fiber respectively, and each remote termination forms articulating by the final stage remote termination by standby optical fiber and corresponding near-end machine.
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2008202006356U CN201307942Y (en) | 2008-09-17 | 2008-09-17 | Wireless zone center where RRH (remote radio head) systems realize covering |
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| CNU2008202006356U CN201307942Y (en) | 2008-09-17 | 2008-09-17 | Wireless zone center where RRH (remote radio head) systems realize covering |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102098080A (en) * | 2009-12-09 | 2011-06-15 | 京信通信系统（中国）有限公司 | Digital microwave radio remote unit coverage system and method |
| CN105634585A (en) * | 2011-02-07 | 2016-06-01 | 大力系统有限公司 | Communication method in distributed antenna system |
| US10080178B2 (en) | 2006-12-26 | 2018-09-18 | Dali Wireless, Inc. | Distributed antenna system |
| US10159074B2 (en) | 2010-09-14 | 2018-12-18 | Dali Wireless, Inc. | Remotely reconfigurable distributed antenna system and methods |
| US11159129B2 (en) | 2002-05-01 | 2021-10-26 | Dali Wireless, Inc. | Power amplifier time-delay invariant predistortion methods and apparatus |
| US11297603B2 (en) | 2010-08-17 | 2022-04-05 | Dali Wireless, Inc. | Neutral host architecture for a distributed antenna system |
| US11418155B2 (en) | 2002-05-01 | 2022-08-16 | Dali Wireless, Inc. | Digital hybrid mode power amplifier system |
-
2008
- 2008-09-17 CN CNU2008202006356U patent/CN201307942Y/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US11418155B2 (en) | 2002-05-01 | 2022-08-16 | Dali Wireless, Inc. | Digital hybrid mode power amplifier system |
| US11159129B2 (en) | 2002-05-01 | 2021-10-26 | Dali Wireless, Inc. | Power amplifier time-delay invariant predistortion methods and apparatus |
| US11006343B2 (en) | 2006-12-26 | 2021-05-11 | Dali Wireless, Inc. | Distributed antenna system |
| US11818642B2 (en) | 2006-12-26 | 2023-11-14 | Dali Wireless, Inc. | Distributed antenna system |
| US10080178B2 (en) | 2006-12-26 | 2018-09-18 | Dali Wireless, Inc. | Distributed antenna system |
| US10334499B2 (en) | 2006-12-26 | 2019-06-25 | Dali Wireless, Inc. | Distributed antenna system |
| CN102098080A (en) * | 2009-12-09 | 2011-06-15 | 京信通信系统（中国）有限公司 | Digital microwave radio remote unit coverage system and method |
| US11297603B2 (en) | 2010-08-17 | 2022-04-05 | Dali Wireless, Inc. | Neutral host architecture for a distributed antenna system |
| US11368957B2 (en) | 2010-09-14 | 2022-06-21 | Dali Wireless, Inc. | Remotely reconfigurable distributed antenna system and methods |
| US11013005B2 (en) | 2010-09-14 | 2021-05-18 | Dali Wireless, Inc. | Remotely reconfigurable distributed antenna system and methods |
| US10743317B1 (en) | 2010-09-14 | 2020-08-11 | Dali Wireless, Inc. | Remotely reconfigurable distributed antenna system and methods |
| US10701695B2 (en) | 2010-09-14 | 2020-06-30 | Dali Wireless, Inc. | Remotely reconfigurable distributed antenna system and methods |
| US10159074B2 (en) | 2010-09-14 | 2018-12-18 | Dali Wireless, Inc. | Remotely reconfigurable distributed antenna system and methods |
| US20220295487A1 (en) | 2010-09-14 | 2022-09-15 | Dali Wireless, Inc. | Remotely reconfigurable distributed antenna system and methods |
| US11805504B2 (en) | 2010-09-14 | 2023-10-31 | Dali Wireless, Inc. | Remotely reconfigurable distributed antenna system and methods |
| US12382444B2 (en) | 2010-09-14 | 2025-08-05 | Dali Wireless, Inc. | Remotely reconfigurable distributed antenna system and methods |
| CN105634585B (en) * | 2011-02-07 | 2019-05-21 | 大力系统有限公司 | The method communicated in distributing antenna system |
| CN105634585A (en) * | 2011-02-07 | 2016-06-01 | 大力系统有限公司 | Communication method in distributed antenna system |
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Granted publication date: 20090909 Termination date: 20130917 |