CN2836382Y - Baseband unit of distributed base station - Google Patents
Baseband unit of distributed base station Download PDFInfo
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- CN2836382Y CN2836382Y CNU2005201186432U CN200520118643U CN2836382Y CN 2836382 Y CN2836382 Y CN 2836382Y CN U2005201186432 U CNU2005201186432 U CN U2005201186432U CN 200520118643 U CN200520118643 U CN 200520118643U CN 2836382 Y CN2836382 Y CN 2836382Y
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Abstract
The utility model discloses a base band unit (BBU) of a distributed type base station. Two blocks of hot pluggable single plates are formed in a way that a fan module, a power module and a clock module, which are arranged in a BBU box, are separated from a BBU bottom plate. A fan inserting box is connected with a power clock plate, and is connected with a base plate of the base band through a back plate of the BBU box. Service is ensured not to be interrupted when the easy-abrasion modules meet failure and are exchanged. Meanwhile, maintenance cost is reduced.
Description
Technical field
The utility model relates to the distributed base station technology, refers to the Base Band Unit (BBU) in a kind of distributed base station especially.
Background technology
In mobile communication system, the base station is a part important in the mobile communications network, is connected between user terminal and the base station controller, is used for the transmitting/receiving wireless signal, makes the user terminal access of radio network, finish simultaneously and base station controller between information interaction.
Along with mobile network's continuous dilatation, the site, base station be selected to a bottleneck in the networking, no matter be to adopt and existing 2G base station colocation site or reconnaissance again, it is more and more difficult all to become, cost is also more and more higher.Therefore how effectively to design the base station, make the base station form can satisfy addressing and make things convenient for, build a station easily, effectively reduce the network construction cost of operator, obtained the concern of operator.
Distributed base station is meant the base station that base band is separated with radio frequency, comprise BBU and Remote Radio Unit (RRU) two parts, on the physical aspect and mounting means of BBU and RRU, the base station form thoroughly breaks traditions, install by miniaturization cartridge design and distributing, reaching does not need extra floor space to adapt to more and more nervous site installing space, satisfies the demand that project installation is implemented fast.As long as in site, original base station, directly utilize the transmission cabinets of the remaining space of former base station outdoor section, indoor machine room or the remaining space of other frame that BBU is installed.
Fig. 1 is the composition module connection diagram of prior art boxlike BBU, and all constituents of BBU is arranged in the box body, hereinafter BBU shown in Figure 1 is called the BBU box.From Fig. 1 as seen, mainly comprise base band substrate 100, power module 10 and blower module 11 in the BBU box.Base band substrate 100, power module 10 and blower module 11 are fastened on the BBU box plate 101 by screw respectively, the pattern that adds cross with circle among Fig. 1 is represented screw, 000 expression is fastened to power module on the screw of BBU box plate, 001 expression is fastened to blower module on the screw of BBU box plate, 002 represents the base band substrate is fastened to the screw of BBU box plate, 003 expression RRU.Wherein, base band substrate 100 comprises transport module 12, baseband module 13, control module 14, clock module 15 and high-speed interface processing module 16, and all modules are integrated on the veneer in the base band substrate 100, and this veneer is arranged in the BBU box.
It is as follows that BBU shown in Figure 1 respectively forms module functions:
Power module 10: be used to and respectively form module in the whole BBU box working power is provided;
Blower module 11: be used to regulate the working temperature in the BBU box;
Transport module 12: the physical interface that provides with radio network controller (RNC) is provided, finishes the information interaction between BBU box and the RNC;
Baseband module 13: be used to finish the tape handling of up-downgoing Data Base.Baseband module comprises that mainly uplink baseband is handled and downgoing baseband is handled: the uplink baseband processing comprises dedicated channel despreading and demodulation, access channel despreading and demodulation, reaches channel decoding etc.; Downgoing baseband is handled and is comprised chnnel coding, base band spread spectrum and modulation etc.
Control module 14: be used to manage concentratedly whole distributed base station system, handle various signalings, system clock is provided.The major control function comprises: resource management, equipment control, performance management, configuration management, base station application part (NBAP) signaling process, Access Link Control Application Protocol (ALCAP) processing, software download, condition monitoring etc.
Clock module 15: be used for phase-locked Iub line clock or global positioning system (GPS) clock, produce synchronised clock, and provide satisfactory clock to the baseband module in the BBU box 13, control module 14 and high-speed interface processing module 16;
High-speed interface processing module 16: be used to provide optical interface or electrical interface with RRU, receive uplink baseband data, and send the downgoing baseband data to RRU from RRU.
Form as can be seen from BBU shown in Figure 1, existing BBU box adopts integrated design, and will hang down reliability, flimsy rapid wear module, be fixed on the BBU box plate 101 as power module 10 and blower module 11, like this, when power module 10 or blower module 11 damages, must at first open the BBU box, lay down trip bolt, separate the distribution of other intermodule in power module 10 or blower module 11 and the BBU box after, could change power module 10 or blower module 11, and, when changing power module 10 or blower module 11, generally need earlier the BBU box to be carried out power operation, can cause service disconnection.Here the BBU box plate refers generally to the bottom in the BBU box box body.
In addition, the clock module 15 that is positioned on the base band substrate 100 also is low reliable module, in case fault, whole base band substrate 100 all will be changed, and except causing service disconnection, has also increased maintenance cost greatly.
Summary of the invention
In view of this, main purpose of the present utility model is to provide a kind of Base Band Unit of distributed base station, can reduce the probability that causes service disconnection when the rapid wear module breaks down, and also can reduce maintenance cost simultaneously.
For achieving the above object, the technical solution of the utility model specifically is achieved in that
A kind of Base Band Unit BBU of distributed base station, this BBU comprises: the base band substrate, this base band substrate comprises: transport module, baseband module, control module and high-speed interface processing module; This BBU also comprises: be provided with the backboard that inserts the rapid wear modular jack and be plugged in rapid wear module on the backboard.
Described rapid wear module is the first power supply clock board, comprising: for respectively forming first power module that module provides working power in the whole BBU box; Produce synchronised clock and offer first clock module of the module that needs clock signal in the BBU box;
The socket that inserts the rapid wear module on the described backboard is: the power supply clock board socket that inserts the power supply clock board;
Described BBU also comprises: the blower module of regulating the working temperature in the BBU box; Described blower module is connected with first power module.
Described rapid wear module is inserted box for the fan of regulating working temperature in the BBU box; The socket that inserts the rapid wear module on the described backboard is: insert the fan box socket that fan is inserted box; Described fan is inserted box and is connected with power module;
Described BBU also comprises: for respectively forming the power module that module provides working power in the whole BBU box;
Described base band substrate also comprises: the clock module that is used to produce and provide synchronised clock.
Described rapid wear module comprises: the fan of regulating working temperature in the BBU box is inserted box; And the first power supply clock board, comprising: for respectively forming first power module that module provides working power in the whole BBU box; Produce synchronised clock and offer first clock module of the module that needs clock signal in the BBU box;
The socket that inserts the rapid wear module on the described backboard comprises: insert the fan box socket that fan is inserted box; Insert the power supply clock board socket of power supply clock board;
Described fan is inserted box and is connected with first power module.
Described BBU also comprises the second source clock board;
Described second source clock module comprises: for respectively forming the second source module that module provides working power in the whole BBU box; With produce synchronised clock and offer the second clock module of the module that needs clock signal in the BBU box;
Described base band substrate also comprises: power redundancy backup module, the input of power redundancy backup module are connected with the second source module with described first power module respectively, and the output of power redundancy backup module is connected with each module in the BBU box; Clock redundancy back-up module, the input of clock redundancy back-up module are connected with the second clock module with described first clock module respectively, need the module of clock signal to be connected in the output of clock redundancy back-up module and the BBU box;
Described blower module or fan are inserted box and are connected with first power module or second source module by described power redundancy backup module.
Described BBU also comprises the second source clock board;
Described second source clock module is included as respectively forms the second source module that module provides working power in the whole BBU box; With produce synchronised clock and offer the second clock module of the module that needs clock signal in the BBU box;
Described backboard also comprises: power redundancy backup module, the input of power redundancy backup module are connected with the second source module with described first power module respectively, and the output of power redundancy backup module is connected with each module in the BBU box; Clock redundancy back-up module, the input of clock redundancy back-up module are connected with the second clock module with described first clock module respectively, need the module of clock signal to be connected in the output of clock redundancy back-up module and the BBU box;
Described blower module or fan are inserted box and are connected with first power module or second source module by described power redundancy backup module.
The described first power supply clock board is the power supply clock board of tenaculum electric heating plug.
Described second source clock board is the power supply clock board of tenaculum electric heating plug.
Described fan is inserted box and is inserted box for the fan of tenaculum electric heating plug.
Described fan is inserted box and is anchored on the box body of BBU box by screw.
Described base band substrate is anchored on the BBU box plate by screw, and is connected with backboard by distribution.
Described backboard also comprises the base band socket substrate that is used to insert the base band substrate.
Described base band substrate further is anchored on the BBU box plate by screw.
As seen from the above technical solution, the utility model is with the rapid wear module in the BBU box, separate from the BBU box plate as blower module, power module or clock module, be configured to the hot swappable independent sector: fan is inserted box and/or power supply clock board, fan is inserted box and/or power supply clock board by inserting respective socket on the backboard being fixed in the BBU box, and is connected with the base band substrate by the wiring of the printed circuit board (PCB) (PCB) on the BBU box backboard.This utility model has guaranteed when the rapid wear module breaks down replacing, reduced the probability that causes service disconnection, particularly all separate from the BBU box plate in described rapid wear module, be configured to two independent sectors of hot swappable: when fan is inserted box and power supply clock board, guaranteed when the rapid wear module breaks down replacing, can not cause service disconnection; Simultaneously also can reduce maintenance cost.
In addition, the utility model increases the reliability that the backup battery clock board further improves BBU, and corresponding increase power redundancy backup module and clock redundancy back-up module in the base band substrate are respectively applied for selection one road power supply and clock preferably simultaneously.
Description of drawings
Fig. 1 is that prior art BBU forms the module connection diagram;
Fig. 2 is the utility model BBU box structure preferred embodiment schematic diagram;
Fig. 3 a is the utility model BBU box Facad structure schematic diagram;
Fig. 3 b is the utility model BBU box back board structure schematic diagram;
Fig. 4 is that the utility model BBU forms the module connection diagram;
Fig. 5 is that the utility model power redundancy backup module realizes circuit diagram;
Fig. 6 is the utility model clock redundancy back-up module principle schematic diagram.
Embodiment
Core concept of the present utility model is: the blower module in the BBU box, power module and clock module are separated from the BBU base plate, be configured to two independent sectors of hot swappable: fan is inserted box and power supply clock board, and the backboard that passes through the BBU box is connected with the base band substrate, guaranteed when the rapid wear module breaks down replacing, can not cause service disconnection, reduce maintenance cost simultaneously yet.
For making the purpose of this utility model, technical scheme and advantage clearer, below with reference to the accompanying drawing preferred embodiment that develops simultaneously, the utility model is further described.
Fig. 2 is the utility model BBU box structure preferred embodiment schematic diagram, backboard 20 is positioned at the back side of BBU box, comprise on the backboard 20: fan box socket 201, fan obtain power supply by the PCB line on the backboard 20 after inserting the fan box socket 201 shown in the box 21 insertion dash areas; Power supply clock board socket 203,204 and base band socket substrate 202, shown in dash area, be respectively applied for and insert power supply clock board 23,24 and base band substrate 22, so on the one hand, power supply clock board 23,24 and base band substrate 22 have been fixed in the BBU box, and on the other hand by the PCB line on the backboard, power supply clock board 23,24 provides two-way power supply signal and two-way clock signal to base band substrate 22, reduce the distribution of BBU box, reduced maintenance work difficulty and cost.
Need to prove that base band substrate 22 also can adopt trip bolt to be fixed on the BBU box plate, just do not had base band substrate slot 202 on the backboard 20 like this, at this moment, being connected and can realizing between base band substrate and the backboard by distribution; Base band substrate 22 can also further adopt trip bolt to be fixed on the BBU box plate after inserting base band substrate slot 202, to increase steadiness.In addition, power supply clock board 23 in the BBU box and power supply clock board 24 relation of backuping each other are in order further to improve the reliability of BBU, in the practical application, can to have only a block power supply clock board.
Fig. 3 a is the utility model BBU box Facad structure schematic diagram, Fig. 3 b is the utility model BBU box back board structure schematic diagram, can more clearly represent structure in the utility model BBU box in conjunction with Fig. 2, in Fig. 3 a, suppose that the power supply clock board in this BBU box adopts backup mode, front from the BBU box, BBU comprises that fan inserts box 21, base band substrate 22, power supply clock board 23 and power supply clock board 24, in Fig. 3 b, the backboard of BBU comprises fan box socket 201, base band socket substrate 202, power supply clock board socket 203 and power supply clock board socket 204.
More than introduced the structure in the BBU box, following mask body is introduced the composition of each veneer of the utility model BBU, Fig. 4 is that the utility model BBU forms the module connection diagram, 25 expression RRU among Fig. 4,26 expression RNC suppose that the power supply clock board in this BBU box adopts backup mode, from Fig. 4 as seen, mainly comprise base band substrate 22, power supply clock board 23,24 in the BBU box, fan is inserted box 21 and backboard 20.Base band substrate 22, power supply clock board 23,24 and fan are inserted box 21 inserts the BBU box respectively by respective socket backboard 20.Wherein, base band substrate 22 comprises transport module 222, control module 224, baseband module 223, high-speed interface processing module 226, power redundancy backup module 221 and clock redundancy back-up module 225, and all modules are integrated on the veneer in the base band substrate 22; Power supply clock board 23 comprises power module 231 and clock module 232, and power supply clock board 24 comprises power module 241 and clock module 242.
It is as follows that BBU shown in Figure 4 respectively forms module functions:
1) the base band substrate 22
Transport module 222: be used to provide the physical interface with RNC, finish the information interaction between BBU box and the RNC, also the Operation and Maintenance for the BBU box provides IPoA passage, and provides and RNC interactive signaling adaptation layer (SAAL) passage for signaling process;
Baseband module 223: be used to finish the tape handling of up-downgoing Data Base.Baseband module comprises that mainly uplink baseband is handled and downgoing baseband is handled: the uplink baseband processing comprises dedicated channel despreading and demodulation, access channel despreading and demodulation, reaches channel decoding; Downgoing baseband is handled and is comprised chnnel coding, base band spread spectrum and modulation;
Control module 224: be used to manage concentratedly whole distributed base station system, handle various signalings, system clock is provided, and the major control function comprises: resource management, equipment control, performance management, configuration management, NBAP signaling process, ALCAP processing, software download, condition monitoring etc.;
High-speed interface processing module 226: be used to provide optical interface or electrical interface with RRU, receive uplink baseband data, and send the downgoing baseband data to RRU from RRU;
Power redundancy backup module 221: be used for selecting from a road higher power supply signal of the two-way power supply signal voltage of backboard 20, insert box 21 power supplies for respectively forming module and fan in the base band substrate 22, be reduced graph 2, the annexation of the output of not shown power redundancy backup module 221 and each module among Fig. 2.If only have a block power supply clock board in the BBU box, then the voltage of the power module output of power redundancy backup module 221 these power supply clock modules of selection is as current power supply; If there are two block power supply clock boards in the BBU box, then power redundancy backup module 221 selects the higher power module of output voltage in the two block power supply clock boards as current power supply;
From the two-way power supply signal, select the specific implementation method of a road higher power supply signal of output voltage a lot, here enumerate a kind of method, specific implementation as shown in Figure 5, Fig. 5 is that a kind of power redundancy backup module of the utility model realizes circuit diagram, among Fig. 5,51 expression power supplys, 1,52 expression power supply, 2,53 expression output voltages, M1 and M2 close the road diode (led) module, or be called the double diode module, close the road diode (led) module and form, as 40L15CT etc. by two shunt diodes.M1 and the M2 relation of backuping each other is in order to improve the reliability of power redundancy backup module self.The operation principle of power redundancy backup module shown in Figure 5 is: the input 11 among the power supply 1 input M1, import the input 21 among the M2 simultaneously; Input 12 among the power supply 2 input M1 is imported the input 22 among the M2 simultaneously; When having only power supply 1 or power supply 2 to M1 and M2 power supply, then output voltage is the voltage of power supply 1 or power supply 2; When power supply 1 and power supply 2 simultaneously to M1 and M2 power supply, according to the shunting action of double diode, the electric current of flowing through on the higher diode of input supply voltage is big, makes that output voltage is the higher supply voltage of voltage in power supply 1 and the power supply 2.
Clock redundancy back-up module 225: be used for selecting road clock, for the base band substrate 22 of BBU provides clock from the two-way clock signal of backboard 20.If only have a block power supply clock board in the BBU box, then the clock of the clock module output of clock redundancy back-up module 225 these power supply clock modules of selection is as present clock.If there are two block power supply clock boards in the BBU box, then clock redundancy back-up module 225 selects the clock of the wherein clock module output of a block power supply clock board as present clock arbitrarily.
Fig. 6 is the utility model clock redundancy back-up module principle schematic diagram, in Fig. 6,60 expression reference clocks, 61 expression clocks 1,62 expression clocks 2,63 expression output clocks, clock detection module 1 and clock detection module 2 are used for all detecting whether the clock input is arranged, and clock alternative module is used for selecting wherein one road clock output.Operation principle is: the clock detection module is by behind the reference clock latch input signal, clock to input is counted, if input signal generation saltus step within a certain period of time, and amplitude is greater than default range value, illustrate that then input signal is effective, be clock, there is the logic level of clock in clock detection module output expression, as logic level 1; Otherwise illustrating that input signal is invalid, promptly is not clock signal, and there is not the logic level of clock in clock detection module output expression, as logic level 0; Clock alternative module is according to the testing result of clock detection module, and selecting effectively to obtain input signal is present clock output, and logical relation is shown in Table 1:
| Clock 1 testing result | Clock 2 testing results | The output clock |
| 0 | 0 | No clock signal output |
| 0 | 1 | Clock 2 |
| 1 | 0 | Clock 1 |
| 1 | 1 | Clock 1 or clock 2 |
Table 1
As seen from Table 1, when clock 1 and clock 2 all do not exist, no clock signal output; When having clock 1 or clock 2, the output clock is clock 1 or clock 2; When clock 1 and clock 2 all exist, select clock 1 or clock 2 outputs arbitrarily.
Here, reference clock can be provided by existing clock generation circuit, can adopt also that existing crystal oscillator provides in the base band substrate.Need explanation the time, the crystal oscillator here is the crystal oscillator that clock is provided for the CPU in the base band substrate, belongs to technology as well known to those skilled in the art.
2) power supply clock board 23 and power supply clock board 24
Power supply clock board 23 comprises power module 231 and power module 241: be respectively applied for to respectively forming module in the whole BBU box working power is provided;
Power supply clock board 24 comprises clock module 232 and clock module 242: be respectively applied for phase-locked Iub line clock or gps clock, produce synchronised clock, and provide satisfactory clock to the baseband module 223 in the whole BBU box, control module 224 and high-speed interface processing module 226;
3) fan is inserted box 21
Fan is inserted box 21 and is used to regulate the interior working temperature of BBU box, and fan is inserted box 21 inside can fix a plurality of small-sized fanses, such as 4; Fan is inserted the plug of box 21 tenaculum electric heating, makes things convenient for fault to change and breakdown maintenance;
In addition, in order to prevent to come off, also can further adopt screw that fan is inserted box 21 and be anchored on the structural member of BBU box.
4) backboard 20
The backboard 20 of BBU box comprises fan box socket 201, base band socket substrate 202, power supply clock board socket 203 and power supply clock board socket 204; This backboard 20 is used to provide socket and PCB line, connects power supply clock board 23,24, and fan is inserted box 21, the power supply between the base band substrate 22, clock and control signal; This backboard 20 is fixed in BBU box inside, on the box body that is fixed on the BBU box.
Need to prove: power redundancy backup module and clock redundancy back-up module also can be positioned on the backboard 20.
From as seen above-mentioned, the utility model is inserted box 21 with the fan that fan attachment module 11 changes to the plug of tenaculum electric heating, breaks down in case fan is inserted box 21, and the attendant can change the fan of damage easily separately and insert box 21, can not cause service disconnection, reduce maintenance cost simultaneously yet.Therefore, the utility model has been avoided reprocessing the BBU box owing to what fan failure caused, thereby has reduced the repair rate of BBU box, has saved BBU box maintenance cost.
Power module and clock module that the utility model will hang down reliability are integrated on the block power supply clock board, and this power supply clock board tenaculum electric heating plug.Like this,, improved the reliability of base band substrate greatly, reduced base band substrate failure rate because base band substrate 22 of the present utility model does not comprise low reliability clock module; Guaranteed when the power supply clock board breaks down replacing, can not cause service disconnection, also reduced maintenance cost simultaneously.Connect by the PCB layout on the backboard between each veneer of the utility model, and it is mutual to carry out signal, has reduced the distribution kind of BBU box, reduced maintenance cost.
The base band substrate is tenaculum electric heating pluggable mode also, changes for base band substrate fault and brings bigger convenience, and can not cause service disconnection.
The power supply clock module can further be supported the master-slave redundancy backup configuration, thereby has strengthened the reliability of BBU box greatly, has reduced the fault repair rate of BBU box, has saved the maintenance cost of BBU box.
In addition, the base band substrate shape of prior art shown in Figure 1 is non-rectangle, and processing is made troubles to PCB, and the base band substrate in the utility model shown in Figure 2 is regular rectangular shape, is convenient to PCB processing, has also reduced the PCB processing cost simultaneously.
Above-mentioned Fig. 2 is that the present invention all separates all rapid wear modules from the BBU box plate, be configured to two independent sectors of hot swappable: fan is inserted the preferable situation of box and power supply clock board, guaranteed when the rapid wear module breaks down replacing, service disconnection can be do not caused, maintenance cost can be reduced simultaneously yet.In addition, also can only power supply clock module or blower module be separated from the BBU box plate, and the rapid wear module of not separating still adopts the mode of prior art to load in the BBU box, can reach the object of the invention equally like this.
The above is preferred embodiment of the present utility model only, is not to be used to limit protection range of the present utility model.
Claims (13)
1. the Base Band Unit BBU of a distributed base station, this BBU comprises: the base band substrate, this base band substrate comprises: transport module, baseband module, control module and high-speed interface processing module; It is characterized in that this BBU also comprises: be provided with the backboard that inserts the rapid wear modular jack and be plugged in rapid wear module on the backboard.
2. BBU according to claim 1 is characterized in that, described rapid wear module is the first power supply clock board, comprising: for respectively forming first power module that module provides working power in the whole BBU box; Produce synchronised clock and offer first clock module of the module that needs clock signal in the BBU box;
The socket that inserts the rapid wear module on the described backboard is: the power supply clock board socket that inserts the power supply clock board;
Described BBU also comprises: the blower module of regulating the working temperature in the BBU box; Described blower module is connected with first power module.
3. BBU according to claim 1 is characterized in that, described rapid wear module is inserted box for the fan of regulating working temperature in the BBU box; The socket that inserts the rapid wear module on the described backboard is: insert the fan box socket that fan is inserted box; Described fan is inserted box and is connected with power module;
Described BBU also comprises: for respectively forming the power module that module provides working power in the whole BBU box;
Described base band substrate also comprises: the clock module that is used to produce and provide synchronised clock.
4. BBU according to claim 1 is characterized in that, described rapid wear module comprises: the fan of regulating working temperature in the BBU box is inserted box; And the first power supply clock board, comprising: for respectively forming first power module that module provides working power in the whole BBU box; Produce synchronised clock and offer first clock module of the module that needs clock signal in the BBU box;
The socket that inserts the rapid wear module on the described backboard comprises: insert the fan box socket that fan is inserted box; Insert the power supply clock board socket of power supply clock board;
Described fan is inserted box and is connected with first power module.
5. according to claim 2 or 4 described BBU, it is characterized in that described BBU also comprises the second source clock board;
Described second source clock module comprises: for respectively forming the second source module that module provides working power in the whole BBU box; With produce synchronised clock and offer the second clock module of the module that needs clock signal in the BBU box;
Described base band substrate also comprises: power redundancy backup module, the input of power redundancy backup module are connected with the second source module with described first power module respectively, and the output of power redundancy backup module is connected with each module in the BBU box; Clock redundancy back-up module, the input of clock redundancy back-up module are connected with the second clock module with described first clock module respectively, need the module of clock signal to be connected in the output of clock redundancy back-up module and the BBU box;
Described blower module or fan are inserted box and are connected with first power module or second source module by described power redundancy backup module.
6. according to claim 2 or 4 described BBU, it is characterized in that described BBU also comprises the second source clock board;
Described second source clock module is included as respectively forms the second source module that module provides working power in the whole BBU box; With produce synchronised clock and offer the second clock module of the module that needs clock signal in the BBU box;
Described backboard also comprises: power redundancy backup module, the input of power redundancy backup module are connected with the second source module with described first power module respectively, and the output of power redundancy backup module is connected with each module in the BBU box; Clock redundancy back-up module, the input of clock redundancy back-up module are connected with the second clock module with described first clock module respectively, need the module of clock signal to be connected in the output of clock redundancy back-up module and the BBU box;
Described blower module or fan are inserted box and are connected with first power module or second source module by described power redundancy backup module.
7. according to claim 2 or 4 described BBU, it is characterized in that the described first power supply clock board is the power supply clock board of tenaculum electric heating plug.
8. BBU according to claim 5 is characterized in that, described second source clock board is the power supply clock board of tenaculum electric heating plug.
9. according to claim 3 or 4 described BBU, it is characterized in that described fan is inserted box and inserted box for the fan of tenaculum electric heating plug.
10. according to claim 3 or 4 described BBU, it is characterized in that described fan is inserted box and is anchored on the box body of BBU box by screw.
11., it is characterized in that described base band substrate is anchored on the BBU box plate by screw, and is connected with backboard by distribution according to claim 2,3 or 4 described BBU.
12., it is characterized in that described backboard also comprises the base band socket substrate that is used to insert the base band substrate according to claim 2,3 or 4 described BBU.
13. BBU according to claim 12 is characterized in that, described base band substrate further is anchored on the BBU box plate by screw.
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| CNU2005201186432U CN2836382Y (en) | 2005-09-09 | 2005-09-09 | Baseband unit of distributed base station |
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| WO2016082427A1 (en) * | 2014-11-25 | 2016-06-02 | 中兴通讯股份有限公司 | Base band unit backplate, base band unit and distributed base station |
| WO2017012595A1 (en) * | 2015-07-22 | 2017-01-26 | 中兴通讯股份有限公司 | Large-capacity baseband processing apparatus |
| CN108255764A (en) * | 2018-01-24 | 2018-07-06 | 郑州云海信息技术有限公司 | A kind of circuit and its control method of hot-swappable clock board |
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2005
- 2005-09-09 CN CNU2005201186432U patent/CN2836382Y/en not_active Expired - Lifetime
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101170399B (en) * | 2007-11-28 | 2010-06-02 | 中兴通讯股份有限公司 | A clock synchronization method in distributed base station and the distributed base station |
| CN101232660B (en) * | 2008-02-03 | 2011-04-06 | 深圳国人通信有限公司 | Method and apparatus for processing protocol of base band unit |
| CN102158946A (en) * | 2010-06-13 | 2011-08-17 | 武汉盛华微***技术股份有限公司 | Time service control system and control method |
| CN102281625A (en) * | 2010-06-13 | 2011-12-14 | 武汉盛华微***技术股份有限公司 | Time service control system and time service control method |
| CN102170693A (en) * | 2010-07-01 | 2011-08-31 | 武汉盛华微***技术股份有限公司 | Time control system and control method based on Beidou navigation satellite system |
| CN102170692A (en) * | 2010-07-01 | 2011-08-31 | 武汉盛华微***技术股份有限公司 | Time service control system and control method based on beidou navigation satellite system |
| CN104767583A (en) * | 2011-06-03 | 2015-07-08 | 武汉盛华微***技术股份有限公司 | Optical fiber access timing device with time-delay measuring system |
| WO2016082427A1 (en) * | 2014-11-25 | 2016-06-02 | 中兴通讯股份有限公司 | Base band unit backplate, base band unit and distributed base station |
| WO2017012595A1 (en) * | 2015-07-22 | 2017-01-26 | 中兴通讯股份有限公司 | Large-capacity baseband processing apparatus |
| CN106376024A (en) * | 2015-07-22 | 2017-02-01 | 中兴通讯股份有限公司 | Large-capacity baseband processing apparatus |
| CN108255764A (en) * | 2018-01-24 | 2018-07-06 | 郑州云海信息技术有限公司 | A kind of circuit and its control method of hot-swappable clock board |
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