CN101188818A - Base station, processing method for its baseband signal and wireless communication system - Google Patents
Base station, processing method for its baseband signal and wireless communication system Download PDFInfo
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- CN101188818A CN101188818A CNA2006101491237A CN200610149123A CN101188818A CN 101188818 A CN101188818 A CN 101188818A CN A2006101491237 A CNA2006101491237 A CN A2006101491237A CN 200610149123 A CN200610149123 A CN 200610149123A CN 101188818 A CN101188818 A CN 101188818A
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Abstract
The invention relates to the wireless communication field, and discloses a base station, a base band signal treatment method in the base station, and a wireless communication system. In the invention, main control, transmission, and clock functions are uniformly provided to each base band unit inside the base station by a shared public module, the construction cost, and the maintenance and expanding cost in the later stage are reduced through the sharing. The base band unit in the identical base station can have different system types. The public module can be an independent physical unit, or a part of the base band unit in the base station. The public module and each base band module can be mutually connected through various methods such as a chain type, a star type, a bus type, a ring type, an exchange type, etc.
Description
Technical field
The present invention relates to wireless communication field, particularly base station and Base-Band Processing technology wherein.
Background technology
In recent years, the development of the communication technology, especially mobile communication technology is very rapid, and first to 3G (Third Generation) Moblie (The Third Generation, abbreviation " 3G ") releasing one after another of system makes mobile communication increase day by day the influence of human lives and work.Present mobile subscriber's quantity is in continuous growth, the kind of mobile service is also more and more rich and varied, in the face of this market of constantly expanding, each big mobile operator of the whole world tries hard to by the business of new standard is provided apace, attract and catch the mobile subscriber, in market, occupy favourable competition situation by this.
For the problem that realizes new standard business, traditional solution has two kinds.
First kind is based on original standard, increases the base station of new standard in addition newly, forms the communication network of a stack thus, and this communication network can provide different mobile services for the user.The problem of this solution is, in order to build up such stacking network, drops into huge, be used for purchase of equipment, obtain the site, build the site, and the operation and maintenance of network, wherein aspect CAPEX (cost of investment) and OPEX (operation cost), drop into quite huge.
Second kind is that the module of old standard is separated, and the module of new standard is installed in the module of old standard, shares a rack thus, realizes Multi-Mode Base Station.Second kind of scheme is to have saved site and rack with respect to the main advantage of first kind of scheme.
The common issue with of these two kinds of schemes is that resource is relatively wasted, reason is, do not have unified design between the module of new, old standard, can't shared resource, particularly the master control in the Base Band Unit, transmission, clock etc. are independently fully, and each Base Band Unit all has the relevant parts of a cover.
Summary of the invention
The technical problem underlying that each execution mode of the present invention will solve provides method for processing baseband signal and wireless communication system in a kind of base station, the base station.
For solving the problems of the technologies described above, embodiments of the present invention provide a kind of base station, wherein comprise at least two Base Band Unit that are used for Base-Band Processing, also comprise public module, are used to Base Band Unit that one of master control, transmission, clock are provided at least;
Public module is connected in direct or indirect mode with each Base Band Unit;
Each Base Band Unit uses one of master control that public module provides, transmission, clock at least.
Embodiments of the present invention also provide method for processing baseband signal in a kind of base station, comprise following steps:
Base Band Unit obtains one of master control, transmission, clock from the public module of sharing directly or indirectly;
This Base Band Unit uses one of the master control that obtained, transmission, clock that baseband signal is handled at least.
Embodiments of the present invention also provide a kind of wireless communication system, comprise at least one multi-standard base station as indicated above in this system.
By relatively finding, the main distinction of technical scheme of the present invention and prior art is, provide one of master control, transmission, time clock feature by the public module of sharing each Base Band Unit in the base station is unified at least, and each Base Band Unit uses oneself master control, transmission and clock separately in the prior art.By sharing, can provide master control, transmission and clock by shared cover parts at a plurality of Base Band Unit, reduced cost.By sharing, when expanding in the base station, initiate Base Band Unit no longer needs independently master control, transmission, clock unit, has reduced the expansion cost.
The present invention is the situation of different systems applicable to Base Band Unit in the same base station, is blended in a situation in the base station as WCDMA, GSM, LTE.Most important difference is the Base-Band Processing difference between the Base Band Unit of different systems, and each Base Band Unit still uses the Base-Band Processing logic of oneself, but shares master control, transmission and clock.Thereby made things convenient for the Base Band Unit of different systems to form multi-standard base station, reduced the cost of multi-standard base station.
The frequency of the reference clock that public module provides is the multiple or the approximate number of the required frequency of each standard Base Band Unit, each Base Band Unit obtains self required clock by frequency multiplication or frequency division respectively, thereby has solved the different problem of the employed clock possibility of Base Band Unit of different systems.
Each baseband processing unit in the same base station can be shared distribution, power backup and monitoring resource, thereby further reduces the cost of multi-standard base station.
Public module can be a physical location independently, can replace public module separately when public module is out of order, and has reduced maintenance cost.Each Base Band Unit function is comparatively unified, is convenient to produce in batches.
Public module can be the part of certain Base Band Unit in the base station also, thereby has reduced the demand to separate space in the machine frame.
It is interconnected to pass through variety of ways such as chain, star-like, bus-type, ring-like, crossover between public module and each Base Band Unit, thus the flexibility when having increased the actual disposition base station.
Each Base Band Unit can be connected with radio frequency unit respectively, thereby reduces because connect the possibility that fault causes a plurality of Base Band Unit simultaneous faultss.
Each Base Band Unit also can be connected earlier and afterwards is connected to radio frequency unit, and each Base Band Unit can be shared same radio-frequency line like this, reduces cost, and is particularly suitable for the situation of radio frequency unit at far-end.
Description of drawings
Fig. 1 is the structural representation according to the base station equipment of first embodiment of the invention;
Fig. 2 is the principle schematic according to interconnecting interface in the base station equipment of first embodiment of the invention;
Fig. 3 is according to Base Band Unit in the base station equipment of first embodiment of the invention and the interconnected schematic diagram of Base Band Unit chain that comprises public module;
Fig. 4 is according to Base Band Unit in the base station equipment of first embodiment of the invention and the star-like interconnected schematic diagram of Base Band Unit that comprises public module;
Fig. 5 is according to Base Band Unit in the base station equipment of first embodiment of the invention and the interconnected schematic diagram of Base Band Unit bus-type that comprises public module;
Fig. 6 is according to Base Band Unit in the base station equipment of first embodiment of the invention and the ring-like interconnected schematic diagram of Base Band Unit that comprises public module;
Fig. 7 is according to Base Band Unit in the base station equipment of first embodiment of the invention and the interconnected schematic diagram of Base Band Unit crossover that comprises public module;
Fig. 8 is according to the sharing channel schematic diagram of interconnecting interface in the base station equipment of first embodiment of the invention in the base band radio frequency interface;
Fig. 9 be according to each Base Band Unit in the base station equipment of first embodiment of the invention respectively with the radio frequency unit connection diagram;
Figure 10 connects earlier according to each Base Band Unit in the base station equipment of first embodiment of the invention afterwards to be connected to the schematic diagram of radio frequency unit;
Figure 11 is according to Multi-Mode Base Station implementation schematic diagram in the base station equipment of first embodiment of the invention;
Figure 12 is according to method for processing baseband signal flow chart in the base station of second embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
In base station of the present invention, except the Base Band Unit that is used for Base-Band Processing that comprises a plurality of various standards, also comprise the public module that is used to Base Band Unit that one of master control, transmission, clock are provided at least, this public module is connected in direct or indirect mode with each Base Band Unit, and each Base Band Unit uses one of master control that this public module provides, transmission, clock at least.Make the Base Band Unit of a plurality of different systems to provide master control, transmission and clock by shared cover parts, when expanding in the base station, initiate Base Band Unit also no longer needs independently master control, transmission, clock unit, has reduced the expansion cost.
Below first execution mode of the present invention is described in detail, present embodiment relates to base station equipment, base station in the present embodiment comprises the Base Band Unit of multiple standard, and public module, and this public module is included in some Base Band Unit in the base station as a module.
Specifically, as shown in Figure 1, the base station comprises and is used for the radio frequency unit (RFU) that radiofrequency signal is handled, the Base Band Unit of various standards (BBU), with the Base Band Unit that comprises public module, each Base Band Unit comprises interconnecting interface, is used for directly or indirectly being connected with other Base Band Unit or the Base Band Unit that comprises public module.Wherein, radio frequency unit is used for the processing of radiofrequency signal; Public module is used to Base Band Unit that master control, transmission, clock resource are provided; Base Band Unit is used to carry out Base-Band Processing, and shares master control, transmission, the clock resource that this public module provides by the transmission of interconnecting interface, uses oneself master control, transmission and clock separately to avoid each Base Band Unit, thereby has reduced cost.
In the present embodiment, public module provides reference clock, its frequency is the multiple or the approximate number of the required frequency of each standard Base Band Unit, each Base Band Unit obtains self required clock by frequency multiplication or frequency division respectively, realize sharing of clock resource, solved the different problem of the employed clock possibility of Base Band Unit of different systems.Wherein, be used to realize that it can be the Eia interface that each Base Band Unit is expanded the interface of interconnected usefulness, concrete structure as shown in Figure 2.
The standard of Base Band Unit has global system for mobile communications (Global System forMobile communication in the present embodiment, be called for short " GSM ") standard, code division multiple access (Code Division MultipleAccess, be called for short " CDMA ") standard, micro-wave access to global intercommunication (Worldwide Interoperabilityfor Microwave Access, be called for short " WiMAX ") standard, Wideband Code Division Multiple Access (WCDMA) (Wideband CodeDivision Multiple Access, be called for short " WCDMA ") standard, Long Term Evolution (Long TermEvolution, be called for short " LTE ") standard etc., certainly, the Base Band Unit that also can newly add other standards, as TD SDMA (Time Division Synchronous Code Division MultipleAccess, abbreviation " TD-SCDMA ") Base Band Unit of standard, the Base Band Unit of CDMA2000 standard, personal handyphone system (Personal Handyphone System, abbreviation " PHS ") Base Band Unit of standard, the Base Band Unit of cluster standard (Trunk), or AIE (Air InterfaceEvolution, abbreviation " AIE ") Base Band Unit of standard or the like, the present invention does not limit concrete standard.Though the Base-Band Processing logic difference of the Base Band Unit of different systems, each Base Band Unit still uses the Base-Band Processing logic of oneself, but by sharing master control, transmission and clock, made things convenient for the Base Band Unit of different systems to form multi-standard base station, reduced the cost of multi-standard base station.Each baseband processing unit in the same base station can also be shared distribution, power backup and monitoring resource, with the cost of further reduction multi-standard base station.
The Base Band Unit of each standard and the Base Band Unit that comprises public module one of can be in the following manner be connected:
(1) chain is interconnected, wherein contains the end of the Base Band Unit of public module at chain, and each Base Band Unit is connected on the chain, as shown in Figure 3.
(2) star-like interconnected, the Base Band Unit that wherein contains public module is connected with each Base Band Unit respectively, as shown in Figure 4 in the center.
(3) bus-type is interconnected, and the Base Band Unit that wherein contains public module is connected with same bus respectively with each Base Band Unit, as shown in Figure 5.
(4) ring-like interconnected, Base Band Unit and each Base Band Unit of wherein containing public module are serially connected in respectively on the same ring, as shown in Figure 6.
(5) crossover is interconnected, and the Base Band Unit that wherein contains public module is connected with same switch respectively with each Base Band Unit, as shown in Figure 7.
Contain that can to pass through variety of ways such as chain, star-like, bus-type, ring-like, crossover between the Base Band Unit of public module and each Base Band Unit interconnected, the flexibility when having increased the actual disposition base station.
The Base Band Unit of each standard also comprises the base band radio frequency interface, is used for being connected with radio frequency unit directly or indirectly transmission Operation and Maintenance information (O﹠amp; M information) and baseband I Q data.That is to say that the interconnecting interface of Base Band Unit is used to transmit master information, transmission information and clock synchronization information, to share master control, transmission, clock resource between the Base Band Unit of realizing multi-modulation scheme; The base band radio frequency interface of Base Band Unit is used to transmit O﹠amp; M information and baseband I Q data, as shown in Figure 8.
Each Base Band Unit can be connected (as shown in Figure 9) by the base band radio frequency interface respectively with radio frequency unit, to reduce because of connecting the possibility that fault causes a plurality of Base Band Unit simultaneous faultss; Each Base Band Unit also can be connected earlier and afterwards is connected to radio frequency unit (also connecting), as shown in figure 10, makes and can share same base band radio-frequency channel between each Base Band Unit, to reduce cost, is particularly suitable for the situation of radio frequency unit at far-end.
Figure 11 is the schematic diagram of the realization multi-standard base station that may adopt in actual applications, have two kinds of situations, a kind of situation is to add new Base Band Unit and public module (2G BBU, 3G BBU and comprise the BBU of public module) in existing base station, and, in this base station, add relevant radio frequency unit (3G MRRU) and be used to handle radiofrequency signal; Another kind of situation is can't add in existing base station and the relevant radio frequency unit (3G MRRU) of initiate Base Band Unit and public module (2G BBU, 3G BBU and comprise the BBU of public module), therefore need to realize multi-standard base station by configuration long-distance radio frequency unit (RRU).Certainly, this just realizes two kinds of possibility situations of multi-standard base station, and the present invention is not limited in both of these case.
This shows, in the present embodiment,, also can expand the Base Band Unit of new standard by the interconnecting interface of Base Band Unit if operator need support new wireless standard.These different capabilities, the BBU of different systems can be installed in a rack or the frame, link to each other by interconnecting interface, and can select to share distribution, power backup and the monitoring resource of master control, transmission, clock and website.Realize the multi-modulation scheme general-purpose interface simultaneously between Base Band Unit and radio frequency unit, the Base Band Unit of each standard had both been supported to be connected with the direct of radio frequency unit, also can be connected with radio frequency unit by the Base Band Unit of other standard.And, turn to Base Band Unit owing to will be used for the functional module of Base-Band Processing, and, make base station equipment to be optimized, rather than initial configuration just reserved a lot of expansion slot position at the mainstream demand of operator by realizing the interconnecting interface between the Base Band Unit.Operator can dispose the Base Band Unit of low capacity as required, and is following when needing big capacity configuration, again by the new Base Band Unit of the expansion of the interconnecting interface between the BBU.
In addition, can Base Band Unit be installed, reach the stealthy purpose of Base Band Unit, and do not have the problem of load-bearing by miniaturization Design and distributing.Therefore, as long as original mobile-phone carrier has had the site, base station, just can directly utilize the remaining space in its outdoor macro base station, the rack of indoor macro base station machine room or the remaining space of frame that Base Band Unit is installed, and do not need the extra base station selection that is, solve address, mobile-phone carrier base station and chosen difficult problem.Simultaneously,, make mobile-phone carrier can shorten the time of networking greatly, realize quick networking because device miniaturization disperses to install.
In the present embodiment, each Base Band Unit can be shared public module, and unified control and coffret function externally is provided, and has simplified administering and maintaining of multi-standard base station, has satisfied the requirement of operator to the base station maintainability well.
Second execution mode of the present invention relates to base station equipment, and the present embodiment and first execution mode are roughly the same, and its difference only is, in the first embodiment, public module is included in the Base Band Unit in the base station, and in the present embodiment, and public module is a physical location independently.
That is to say, in the first embodiment, in order to have reduced demand to separate space in the machine frame, public module can be included in the Base Band Unit in the base station, and in the present embodiment, public module is set to independently physical location, so that when public module is out of order, can replace public module separately, reduced maintenance cost, and, each Base Band Unit function is comparatively unified, is convenient to produce in batches.
The 3rd execution mode of the present invention relates to method for processing baseband signal in the base station, and idiographic flow as shown in figure 12.
In step 1210, each the standard Base Band Unit in the base station obtains master control, transmission, clock resource from the public module of sharing directly or indirectly.Such as, the Base Band Unit of GSM standard, the Base Band Unit of CDMA standard, the Base Band Unit of WiMAX standard and the Base Band Unit of LTE standard are arranged in the base station, then the Base Band Unit of these standards obtains master control, transmission, clock resource from public module.Certainly the Base Band Unit in the present embodiment also can be other standards, and as WCDMA standard, TD-SCDMA standard, CDMA 2000 standards, PHS standard, cluster standard or AIE standard etc., present embodiment is not done concrete qualification.
Then, in step 1220, the Base Band Unit of each standard uses the master control, transmission, the clock that are obtained that baseband signal is handled.Such as, the frequency of the reference clock that public module provides is the multiple or the approximate number of the required frequency of each standard Base Band Unit, so, the clock that the Base Band Unit of each standard provides public module carries out frequency multiplication or frequency division obtains self required clock, and uses this clock resource that baseband signal is handled.
This shows, in the present embodiment, the Base Band Unit of a plurality of different systems can provide master control, transmission and clock by shared cover parts, reduced cost, and, when expanding in the base station, initiate Base Band Unit also no longer needs independently master control, transmission, clock unit, has further reduced the expansion cost.
Though pass through with reference to some of the preferred embodiment of the invention, the present invention is illustrated and describes, but those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (14)
1. a base station wherein comprises at least two Base Band Unit that are used for Base-Band Processing, it is characterized in that, also comprises public module, is used to Base Band Unit that one of master control, transmission, clock are provided at least;
Described public module is connected in direct or indirect mode with each described Base Band Unit;
Each Base Band Unit uses one of master control that described public module provides, transmission, clock at least.
2. base station according to claim 1 is characterized in that, the described Base Band Unit of each in the same base station belongs at least two kinds of standards respectively.
3. base station according to claim 2 is characterized in that, the standard of described Base Band Unit comprises:
Global system for mobile communications standard, code division multiple access standard, micro-wave access to global intercommunication standard, Wideband Code Division Multiple Access (WCDMA) standard, TD SDMA standard, code division multiple access standard 2000 standards, personal handyphone system standard, cluster standard, Long Term Evolution standard, AIE standard.
4. base station according to claim 2, it is characterized in that, described public module provides reference clock to each Base Band Unit, and the frequency of this reference clock is the multiple or the approximate number of the required frequency of each standard Base Band Unit, and each Base Band Unit obtains self required clock by frequency multiplication or frequency division respectively.
5. base station according to claim 1 is characterized in that, each Base Band Unit in the same base station is shared distribution, power backup and monitoring resource.
6. base station according to claim 1 is characterized in that, described public module is a physical location independently, or described public module is present in the Base Band Unit in the base station as the part of Base Band Unit.
7. base station according to claim 6 is characterized in that, described public module or the Base Band Unit that contains public module and each Base Band Unit are connected one of in the following manner:
Chain is interconnected, wherein said public module or contain the end of the Base Band Unit of public module at chain, and each Base Band Unit is connected on the chain;
Star-like interconnected, wherein said public module or the Base Band Unit that contains public module are connected with each Base Band Unit respectively in the center;
Bus-type is interconnected, and wherein said public module or the Base Band Unit that contains public module are connected with same bus respectively with each Base Band Unit;
Ring-like interconnected, wherein said public module or contain the Base Band Unit of public module and each Base Band Unit is serially connected in respectively on the same ring;
Crossover is interconnected, and wherein said public module or the Base Band Unit that contains public module are connected with same switch respectively with each Base Band Unit.
8. base station according to claim 1 is characterized in that described Base Band Unit comprises first interface, is used for being connected with described public module or other Base Band Unit, and first interface transmits one of master control, transmission, clock at least.
9. base station according to claim 1 is characterized in that, also comprises at least one and is used for the radio frequency unit that radiofrequency signal is handled;
Described Base Band Unit also comprises second interface, is used for being connected with radio frequency unit directly or indirectly, transmits the Operation and Maintenance information and the baseband I Q data of described radio frequency unit.
10. base station according to claim 9 is characterized in that, each Base Band Unit is connected with radio frequency unit by second interface respectively; Perhaps,
Each Base Band Unit is connected with radio frequency unit by second interface series connection back, shares same base band radio-frequency channel between each Base Band Unit.
11. method for processing baseband signal in the base station is characterized in that, comprises following steps:
Base Band Unit obtains one of master control, transmission, clock from the public module of sharing directly or indirectly;
This Base Band Unit uses one of the master control that obtained, transmission, clock that baseband signal is handled at least.
12. method for processing baseband signal in the base station according to claim 11 is characterized in that, the described Base Band Unit of each in the same base station belongs at least two kinds of standards respectively;
The standard of described Base Band Unit comprises:
Global system for mobile communications standard, code division multiple access standard, micro-wave access to global intercommunication standard, Wideband Code Division Multiple Access (WCDMA) standard, TD SDMA standard, code division multiple access standard 2000 standards, personal handyphone system standard, cluster standard, Long Term Evolution standard, AIE standard.
13. method for processing baseband signal in the base station according to claim 11, it is characterized in that, described public module provides reference clock to each Base Band Unit, the frequency of this reference clock is the multiple or the approximate number of the required frequency of each standard Base Band Unit, and each Base Band Unit obtains self required clock by frequency multiplication or frequency division respectively.
14. a wireless communication system is characterized in that, comprises at least one in this system as each described multi-standard base station in the claim 1 to 10.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101491237A CN101188818B (en) | 2006-11-16 | 2006-11-16 | Base station, processing method for its baseband signal and wireless communication system |
| PCT/CN2007/003229 WO2008058471A1 (en) | 2006-11-16 | 2007-11-15 | Base station, method of processing base band signal in base station and wireless communication system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2006101491237A CN101188818B (en) | 2006-11-16 | 2006-11-16 | Base station, processing method for its baseband signal and wireless communication system |
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| CN201110185521.5A Division CN102264161B (en) | 2006-11-16 | 2006-11-16 | Base station, base band signal processing method in base station and wireless communication system |
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| CN101188818B CN101188818B (en) | 2011-08-10 |
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| WO (1) | WO2008058471A1 (en) |
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| US9107088B2 (en) | 2009-12-30 | 2015-08-11 | Huawei Technologies Co., Ltd. | Software obtaining method and communication device |
| CN101778497B (en) * | 2009-12-30 | 2013-01-30 | 华为技术有限公司 | Method for obtaining software and communication equipment |
| WO2011079794A1 (en) * | 2009-12-30 | 2011-07-07 | 华为技术有限公司 | Method and communication equipment for obtaining software |
| CN102340470A (en) * | 2010-07-20 | 2012-02-01 | 中兴通讯股份有限公司 | Baseband processing system and method |
| WO2012009899A1 (en) * | 2010-07-20 | 2012-01-26 | 中兴通讯股份有限公司 | Baseband processing system and method |
| CN102170714A (en) * | 2011-03-25 | 2011-08-31 | 中兴通讯股份有限公司 | Multi-mode driving method, system and terminal |
| CN103477700A (en) * | 2011-05-20 | 2013-12-25 | 华为技术有限公司 | Multimode base station, method and apparatus for communication in multimode base station |
| CN103477700B (en) * | 2011-05-20 | 2017-04-19 | 华为技术有限公司 | Multimode base station, method and apparatus for communication in multimode base station |
| CN103858492A (en) * | 2011-10-06 | 2014-06-11 | 三菱电机株式会社 | Base station device and communication system |
| CN105657831A (en) * | 2014-12-03 | 2016-06-08 | 中兴通讯股份有限公司 | Baseband resource management method and device |
| CN105657831B (en) * | 2014-12-03 | 2020-01-14 | 中兴通讯股份有限公司 | Baseband resource management method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101188818B (en) | 2011-08-10 |
| WO2008058471A1 (en) | 2008-05-22 |
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