CN206314007U - The LTE R BBU of base station of active and standby full redundancy - Google Patents
The LTE R BBU of base station of active and standby full redundancy Download PDFInfo
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- CN206314007U CN206314007U CN201621486334.5U CN201621486334U CN206314007U CN 206314007 U CN206314007 U CN 206314007U CN 201621486334 U CN201621486334 U CN 201621486334U CN 206314007 U CN206314007 U CN 206314007U
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Abstract
The utility model provides a kind of LTE R BBU of base station of active and standby full redundancy, including modularization cabinet, and rack fixing groove is inserted with CCU, BPU, EPC, light protection board, interface board and power panel in position by plug-in card.The utility model optimize backplane network topology, realize the active and standby full redundancy of EPC, CCU, BPU, make LTE R base station realize board level master-slave redundancy solution.
Description
Technical field
The utility model is related to LTE-R mobile radio communication devices field, specifically a kind of LTE-R bases of active and standby full redundancy
Stand BBU.
Background technology
As Chinese Railway Mobile communication bandwidth demand rapidly increases, original GSM-R systems no longer adapt to new market
Demand, and with the gradually extinction of GSM industrial chains, in the urgent need to being upgraded to original GSM-R communication systems.Ginseng
LTE-R Technical Standard Systems are being formulated according to GSM-R technical specifications Chinese Railway, using newest LTE technologies as the next generation
Railway Mobile Radio system.
LTE-R carries driving business, operation maintenance business, public safety communication business and the passenger information system industry of railway
Business.Driving business includes train scheduling communication, engineering dispatching communication, vehicle scheduling communication, power supply dispatching communication, comprehensive maintenance
Dispatching communication and emergency communication etc., these business propose high requirement to the stability of Railroad Communication System, reliability.For
The reliability of communication system is improved, whole communication system master-slave redundancy design is must take into consideration during networking.Use two sets of communication systems
System, it is a set of primary, it is a set of standby, back-up system is rapidly switched to when active system failure, so ensure that communication industry is done honest work
Often work.
LTE wireless telecommunication systems are by terminal, base station and core net（EPC）Composition.Base station is by baseband processing unit（BBU）With
Remote Radio Unit（RRU）Constitute.EPC is usually platform X86 servers, and interchanger is passed through using two-server during active and standby configuration
With BBU communications, active-standby switch is by software realization.Do so integrated level is poor, switching time is long.
BBU is usually multi-groove rack-mount unit, interpolation central control board（CCU）, LTE Baseband Processing Unit（BPU）, power board
Deng in computer room.BBU boards level is active and standby because being limited by rack construction, hardware plan, power consumption, weight, cost, can grasping
Property made etc., is difficult to realize, or the master-slave redundancy that can only realize part board.Particular problem is as follows：1st, BPU passes through CPRI optical modes
Block and RRU transceiving datas, cause the RRU activestandby states docked with BPU also to switch after BPU active-standby switch, which increase RRU
Equipment investment and mounting cost.2nd, the Big Dipper/GPS time service modules are typically integrated with CCU, for the whole network clock synchronization.Because
The Big Dipper/the gps antenna of general device only has one, and when CCU switches, antenna wants manual switching, causes operation infeasible.
Utility model content
The utility model is in order to solve problem of the prior art, there is provided a kind of LTE-R BBU of base station of active and standby full redundancy,
Optimization backplane network topology, realizes the active and standby full redundancy of EPC, CCU, BPU, the base station of LTE-R is realized the active and standby of board level
Redundancy solution.
The utility model includes modularization cabinet, and rack fixing groove is inserted with CCU, BPU, EPC, light in position by plug-in card
Protection board, interface board and power panel, it is characterised in that：
Described CCU is the exchange control panel of active and standby redundancy structure, is connected with other modules, and whole cabinet is managed
Reason, maintenance and MESSAGE EXCHANGE.
Described BPU is the LTE Baseband Processing Unit of active and standby redundancy structure, using high-performance multi-core DSP chip, complete physical layer,
MAC layer and three layer protocols.
Described EPC is the core net of active and standby redundancy structure, using X86-based blade server, completes user, control industry
Business is carried, and mobile subscriber manages and message road function.
Described light protection board is the fast optical switch being connected between BPU and RRU optical fiber, uses FPGA, normal work
Time protection board is open circuit between controlling primary BPU and RRU optical fiber, is open circuit between standby BPU and the optical fiber of RRU.
Described interface board uses FPGA, and in addition to the optical interface of RRU, the external interface of all cabinets is all from interface board
Go out, the external interface and the Big Dipper/gps signal of interface board completion EPC are input into.
The utility model beneficial effect is：
1st, by increasing interface board, optimization backplane network topology realizes the active and standby full redundancy of EPC, CCU, BPU, makes LTE-
The base station of R realizes the master-slave redundancy solution of board level；
2nd, EPC and switch function are integrated into a BBU cabinet, and compact conformation, small volume is convenient for installation and maintenance；
3rd, light protection board is increased, when realizing BPU switchings, RRU is not required to switching, and optical fiber interface is not required to change, and is not required to artificial
Participate in, save RRU investments；
4th, interface board installs the Big Dipper/GPS time service modules, and when realizing CCU switchings, the Big Dipper/gps antenna is not required to manually cut
Change, the clock frequency of base station, phase invariant, BPU can faster enter master state；
5th, whole BBU integrated levels are high, and full modularized design, each module can be with flexible configuration.When not configuring EPC, Ke Yihe
Common BBU is the same, the interchanger and EPC of external other producers.When not configuring light protection board, each BPU with independent RRU,
RRU activestandby states are with BPU master/slave switchovers.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model backplane network topological diagram.
Fig. 3 is light protection board theory diagram.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
Active and standby full redundancy BBU uses modularized design, and card insert type is installed.Whole cabinet can adapt to 19 inch standard machines
There is mounting hole cabinet, equipment both sides, and cabinet is carried on pallet and is fixed on rack by mounting hole.Fan is in left side, air filter
Net is pluggable on right side, maintains easily cleaning.CCU, BPU, EPC, light protection board, interface board and power panel are all that modularization sets
Meter, plug-in card form is inserted in cabinet fixing groove position, and coded connector anti-mis-insertion, board front panel peace are installed in board and backboard groove position
Dress drawing-aid device and the convenient plug of self-clinching stud and fastening.
The chief component of active and standby full redundancy BBU is as shown in Figure 1：（1）CCU：CCU is the center control panel of base station, right
Whole cabinet is managed, safeguards that be internally integrated multiport switching network, the Ethernet of all boards is all handed over by CCU in cabinet
Change, actually CCU becomes to exchange control panel；（2）BPU：BPU is LTE Baseband Processing Unit, using high-performance multi-core DSP chip, is completed
Physical layer, MAC layer and three layer protocol functions.Panel goes out CPRI optical interfaces, and deluster protection board, then logical by light protection board and RRU
Letter；（3）EPC：EPC uses X86-based blade server, completes user, control business and carries, mobile subscriber's management, message road
By etc. function；（4）Light protection board：Light protection board uses FPGA, does not use CPU, does not install operating system, and software and hardware is tried one's best letter
It is single, it is ensured that the reliability of software and hardware.From quick mems optical switch matrix, according to the active and standby BPU status signals that backboard comes, make
The tangential primary BPU of the optical fiber of RRU is controlled with hardware logic electric circuit, as shown in Figure 3；（5）Interface board：Interface board uses FPGA, no
Using CPU, operating system is not installed, software and hardware is tried one's best simply, it is ensured that the reliability of software and hardware.In addition to the optical interface of RRU, institute
The external interface for having cabinet all goes out from interface board.The Big Dipper/GPS time service modules are placed on interface board, to active and standby BPU provide TOD,
1PPS signals.The external network interface of EPC goes out also by interface board, Determines external network interface switching of the interface board according to active and standby CCU
To the switching network of primary CCU；（6）Power module：Needed from direct current or AC power supply module according to scene, it is desirable to support that heat is inserted
Pull out；（7）Blower module：Communicated by I2C buses and CCU, the temperature conditions adjustment rotating speed according to each board of cabinet makes board good
Good radiating.
The backplane network topology of active and standby full redundancy BBU is as shown in Figure 2：（1）Using control, business centered on active and standby CCU
Plane double star configuration, each board has one group of control signal to be connected on the FPGA of CCU, and each board has one group of Ethernet
Business interface is connected on the switching network of CCU；（2）There is one group of control signal between active and standby CCU, BPU and EPC, indicate this plate in place
And activestandby state, it is switched fast by hard logic during switching；（3）It is connected by switching network Ethernet interface between active and standby BPU, EPC,
Standby BPU and EPC passes through Ethernet interface by the configuration of primary board and user profile synchronized update to this plate, when so switching
Business can be set up as early as possible；（4）The external Big Dipper/the gps antenna of interface board, there is the Big Dipper/GPS time service modules on plate, module output
1PPS and TOD signals give active and standby BPU by backboard, and clock will not become when BPU switches；（5）The control that light protection board passes through backboard
Two pieces of activestandby states of BPU of signal acquisition processed, on switching RRU optical fiber to primary BPU optical ports.
, for the BBU in substituting former base station, interchanger and EPC, RRU device is or not active and standby full redundancy BBU in networking application
Become.
If not luminous intensity distribution protection board, active and standby full redundancy BBU will configure two RRU in networking application, and every piece of BPU is independent
Configuration RRU, if the port of BPU is relatively more, can cause plug-in RRU quantity to be multiplied.
If being unworthy of EPC, also not luminous intensity distribution protection board, active and standby full redundancy BBU will configure an industry and hand in networking application
Change planes and two EPC, a master one is standby.So whole system is huger, and a rack not necessarily can hold.
The utility model concrete application approach is a lot, and the above is only preferred embodiment of the present utility model, should
Point out, for those skilled in the art, on the premise of the utility model principle is not departed from, can also make
Go out some improvement, these improvement also should be regarded as protection domain of the present utility model.
Claims (4)
1. a kind of LTE-R BBU of base station of active and standby full redundancy, including modularization cabinet, rack fixing groove is inserted in position by plug-in card
There are CCU, BPU, EPC, light protection board, interface board and power panel, it is characterised in that：
Described CCU is the exchange control panel of active and standby redundancy structure, is connected with other modules；
Described BPU is the LTE Baseband Processing Unit of active and standby redundancy structure, completes physical layer, MAC layer and three layer protocols；
Described EPC is the core net of active and standby redundancy structure；
Described light protection board is the fast optical switch being connected between BPU and RRU optical fiber, uses FPGA, normal work time
Protection board is open circuit between controlling primary BPU and RRU optical fiber, is open circuit between standby BPU and the optical fiber of RRU；
Described interface board uses FPGA, and in addition to the optical interface of RRU, the external interface of all cabinets all goes out from interface board, connects
The external interface and the Big Dipper of oralia completion EPC/gps signal input.
2. the LTE-R BBU of base station of active and standby full redundancy according to claim 1, it is characterised in that：Described BPU is using high
Performance multi-core DSP chip.
3. the LTE-R BBU of base station of active and standby full redundancy according to claim 1, it is characterised in that：Described EPC uses X86
Framework blade server, completes user, control business and carries, and mobile subscriber manages and message road function.
4. the LTE-R BBU of base station of active and standby full redundancy according to claim 1, it is characterised in that：Described light protection board choosing
With quick mems optical switch matrix.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621486334.5U CN206314007U (en) | 2016-12-31 | 2016-12-31 | The LTE R BBU of base station of active and standby full redundancy |
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| CN201621486334.5U CN206314007U (en) | 2016-12-31 | 2016-12-31 | The LTE R BBU of base station of active and standby full redundancy |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106658763A (en) * | 2016-12-31 | 2017-05-10 | 南京泰通科技股份有限公司 | Main-standby full-redundant LTE-R base station BBU |
| CN111107586A (en) * | 2019-12-24 | 2020-05-05 | 广东机电职业技术学院 | A kind of processing method and system of BBU front transmission data |
-
2016
- 2016-12-31 CN CN201621486334.5U patent/CN206314007U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106658763A (en) * | 2016-12-31 | 2017-05-10 | 南京泰通科技股份有限公司 | Main-standby full-redundant LTE-R base station BBU |
| CN111107586A (en) * | 2019-12-24 | 2020-05-05 | 广东机电职业技术学院 | A kind of processing method and system of BBU front transmission data |
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