CN205160796U - Electric power TD -LTE multi -service system of bearing that physics is kept apart - Google Patents
Electric power TD -LTE multi -service system of bearing that physics is kept apart Download PDFInfo
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- CN205160796U CN205160796U CN201520936738.9U CN201520936738U CN205160796U CN 205160796 U CN205160796 U CN 205160796U CN 201520936738 U CN201520936738 U CN 201520936738U CN 205160796 U CN205160796 U CN 205160796U
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Abstract
The utility model provides an electric power TD -LTE multi -service system of bearing that physics is kept apart, including clock source, LTE basic station, LTE core net A, LTE core net B, LTE core router A, LTE core router B, electric power SDH passback net, at least one terminal equipment UE_A and at least one terminal equipment UE_B, the clock source is LTE core router A respectively and LTE core router B provides synchronized clock the signal, electric power SDH passback net is equipped with mutually independent passback passageway A and passback passageway B. The utility model discloses an electric power TD -LTE multi -service system of bearing that physics is kept apart keeps the independence of original network and furthest to utilize limited frequency resource in can applying to the mutually independent electric power information network twine, solves the isolation problem of bearing through the professional synthesis of TD -LTE technology electric power system, has better application prospect.
Description
Technical field
The utility model relates to a kind of electric power TD-LTE multiple service supporting system, especially the physically-isolated electric power TD-LTE multiple service supporting system of a kind of employing.
Background technology
Electric power system is paid much attention to for the production of the electric power monitoring system controlled and the reliability of communication network thereof and fail safe.Electricity Monitoring Commission [2005] 5 commands etc. successively explicitly call for, and electric power monitoring system should adhere to the principle of security partitioning, network-specific, lateral isolation, longitudinal certification, ensure the safety of electric power monitoring system and power dispatch data network.Electricity prison safety [2006] No. 34 literary compositions explicitly call for, power dispatch data network should use standalone network device networking on designated lane, adopt based on modes such as SDH/PDH different passage, Different lightwave length, different fibre cores, physical layer realizes the Secure isolation with other data networks of electric power enterprise and external information net.
Along with deepening continuously of intelligent grid construction is carried out, energy communication service kind becomes increasingly abundant, and network coverage and construction scale expand year by year.The construction cost of power optical fiber terminal communication access network is higher, construction period is longer, intelligent acess is only relied on to be difficult to the communication requirement meeting different regions, different business, particularly be not suitable for the Gucheng District of optical fiber construction, scenic spot, CBD and area, remote countryside, by contrast, cordless communication network is more suitable for the electric power terminal comparatively disperseed that distributes, and especially meets the communication requirement of mobile service.
When carrying electric power system and explicitly calling for the multiple business of isolation, do not take the TD-LTE wireless communication system of quarantine measures to there is the hidden danger causing power communication to be interrupted because of equipment fault or traffic congestion, do not meet electric power system related request.And build two overlap independently TD-LTE wireless communication system need between system reserve frequency protection interval, infeasible for very nervous wireless private network frequency resource.
Utility model content
The technical problems to be solved in the utility model is difficult to reserve frequency protection interval when carrying out multi-service isolation in existing carrying electric power system.
In order to solve the problems of the technologies described above, the utility model provides a kind of physically-isolated electric power TD-LTE multiple service supporting system, comprises clock source, LTE base station, LTE core network A, LTE core network B, LTE core router A, LTE core router B, electric power SDH return net, at least one terminal equipment UE_A and at least one terminal equipment UE_B;
Clock source is connected with LTE core router B with LTE core router A respectively, for LTE core router A and LTE core router B provides synchronizing clock signals;
LTE base station comprises at least one base station A and at least one base station B, base station A comprises baseband processing unit equipment B BU_A and is attached thereto the Remote Radio Unit equipment RRU_A of communication, and base station B comprises baseband processing unit equipment B BU_B and is attached thereto the Remote Radio Unit equipment RRU_B of communication;
Be provided with at least one in LTE core network A and be connected to equipment of the core network A on ALTE core router A, be provided with at least one in LTE core network B and be connected to equipment of the core network B on LTE core router B;
Electric power SDH returns net and is provided with separate return path A and return path B, and return path A is for connecting LTE core router A and baseband processing unit equipment B BU_A, and return path B is for connecting LTE core router B and baseband processing unit equipment B BU_B;
Terminal equipment UE_A and Remote Radio Unit equipment RRU_A radio communication; terminal equipment UE_B and Remote Radio Unit equipment RRU_B radio communication, and unguarded interval between the working frequency range of the working frequency range of Remote Radio Unit equipment RRU_A and Remote Radio Unit equipment RRU_B.
Clock source is adopted to be connected with LTE core router B with LTE core router A respectively, thus for both to have achieved clock signal synchronization between A system and B system, achieve physical isolation again, path between two systems is not interfere with each other, avoids reserve frequency protection interval in very nervous wireless private network frequency resource; Adopt separate return path A and return path B, the back information of A system and B system effectively can be avoided to return in net at electric power SDH and mutually disturb, improve efficiency and the reliability of information back.
As further restriction scheme of the present utility model, terminal equipment UE_A and terminal equipment UE_B is equipped with independently memory encryption and stores operator code and centre frequency.Adopt independently memory encryption to store operator code and centre frequency, effectively can prevent terminal equipment from changing operator code and the center frequency information of own reservation, enhance the fail safe that terminal equipment uses.
As further restriction scheme of the present utility model, baseband processing unit equipment B BU_A is communicated by CPRI agreement with Remote Radio Unit equipment RRU_A, and baseband processing unit equipment B BU_B is communicated by CPRI agreement with Remote Radio Unit equipment RRU_B.
As further restriction scheme of the present utility model, clock source is the clock source based on IEEE1588V2 consensus standard.
The beneficial effects of the utility model are: (1) adopts clock source to be connected with LTE core router B with LTE core router A respectively, thus for both to have achieved clock signal synchronization between A system and B system, achieve physical isolation again, path between two systems is not interfere with each other, avoids reserve frequency protection interval in very nervous wireless private network frequency resource; (2) adopt separate return path A and return path B, the back information of A system and B system effectively can be avoided to return in net at electric power SDH and mutually disturb, improve efficiency and the reliability of information back; (3) adopt physically-isolated method and completely independently two overlap compared with LTE system, avoid monkey chatter problem, improve the communication quality of each autonomous channel, also avoid taking very nervous wireless private network frequency resource simultaneously, reduce network in general construction cost.
Accompanying drawing explanation
Fig. 1 is system configuration schematic diagram of the present utility model;
Fig. 2 is method flow diagram of the present utility model.
Embodiment
As shown in Figure 1, physically-isolated electric power TD-LTE multiple service supporting system of the present utility model comprises: clock source, LTE base station, LTE core network A, LTE core network B, LTE core router A, LTE core router B, electric power SDH return net, at least one terminal equipment UE_A and at least one terminal equipment UE_B;
Wherein, clock source is connected with LTE core router B with LTE core router A respectively, for LTE core router A and LTE core router B provides synchronizing clock signals; LTE base station comprises at least one base station A and at least one base station B, base station A comprises baseband processing unit equipment B BU_A and is attached thereto the Remote Radio Unit equipment RRU_A of communication, and base station B comprises baseband processing unit equipment B BU_B and is attached thereto the Remote Radio Unit equipment RRU_B of communication; Be provided with at least one in LTE core network A and be connected to equipment of the core network A on ALTE core router A, be provided with at least one in LTE core network B and be connected to equipment of the core network B on LTE core router B; Electric power SDH returns net and is provided with separate return path A and return path B, and return path A is for connecting LTE core router A and baseband processing unit equipment B BU_A, and return path B is for connecting LTE core router B and baseband processing unit equipment B BU_B; Terminal equipment UE_A and Remote Radio Unit equipment RRU_A radio communication, terminal equipment UE_B and Remote Radio Unit equipment RRU_B radio communication.
When carrying out system configuration, unguarded interval between the working frequency range of Remote Radio Unit equipment RRU_A and the working frequency range of Remote Radio Unit equipment RRU_B; The operational cell centre frequency of baseband processing unit equipment B BU_A is fA, and system bandwidth is WA; The operational cell centre frequency fB of baseband processing unit equipment B BU_B, system bandwidth WB; Centre frequency relation meets | fA-fB|=WA/2+WB/2; It is PLMN_A that terminal equipment UE_A arranges operator code, and center frequency information is fA; It is PLMN_B that terminal equipment UE_B arranges operator code, and center frequency information is fB; Terminal equipment UE_A and terminal equipment UE_B is equipped with independently memory encryption and stores operator code and centre frequency; Baseband processing unit equipment B BU_A is communicated by CPRI agreement with Remote Radio Unit equipment RRU_A, and baseband processing unit equipment B BU_B is communicated by CPRI agreement with Remote Radio Unit equipment RRU_B; Clock source is the clock source based on IEEE1588V2 consensus standard.
As shown in Figure 2, physically-isolated electric power TD-LTE multiple service supporting system of the present utility model, when building, comprises the steps:
Step 1, builds according to system configuration the Physical Disconnection System that comprises clock source, LTE base station, LTE core network A, LTE core network B, LTE core router A, LTE core router B, electric power SDH passback net, at least one terminal equipment UE_A and at least one terminal equipment UE_B;
Step 2, the working frequency range arranging Remote Radio Unit equipment RRU_A and Remote Radio Unit equipment RRU_B is respectively fA and fB, and unguarded interval between the working frequency range of the working frequency range of Remote Radio Unit equipment RRU_A and Remote Radio Unit equipment RRU_B;
Step 3, the operator code arranging terminal equipment UE_A is respectively PLMN_A, and center frequency information is fA; The operator code arranging terminal equipment UE_B is respectively PLMN_B, and center frequency information is fB;
Step 4, terminal equipment UE_A and terminal equipment UE_B performs search synchronizing signal respectively after entering network's coverage area near centre frequency fA and fB, and searching the detection of the laggard column criterion time synchronized of synchronizing signal, Frequency Synchronization, channel estimating and physical channel, obtain MIB, SIB and PLMN further;
Step 5, whether terminal equipment UE_A and the terminal equipment UE_B operator code that comparison is arranged separately mates with the PLMN of acquisition, if do not mate, then returns step 4, if coupling, then continues to receive SIB.
The utility model is only for A system and B system partitioning, in the electric power TD-LTE multiple service supporting system of reality, need correspondence that other system is set according to number of services, i.e. the corresponding terminal equipment that other base stations, LTE core network, LTE core router, return path and correspondence are set; LTE core router needs to connect same clock source equally.
Claims (4)
1. a physically-isolated electric power TD-LTE multiple service supporting system, is characterized in that: comprise clock source, LTE base station, LTE core network A, LTE core network B, LTE core router A, LTE core router B, electric power SDH return net, at least one terminal equipment UE_A and at least one terminal equipment UE_B;
Clock source is connected with LTE core router B with LTE core router A respectively, for LTE core router A and LTE core router B provides synchronizing clock signals;
LTE base station comprises at least one base station A and at least one base station B, base station A comprises baseband processing unit equipment B BU_A and is attached thereto the Remote Radio Unit equipment RRU_A of communication, and base station B comprises baseband processing unit equipment B BU_B and is attached thereto the Remote Radio Unit equipment RRU_B of communication;
Be provided with at least one in LTE core network A and be connected to equipment of the core network A on ALTE core router A, be provided with at least one in LTE core network B and be connected to equipment of the core network B on LTE core router B;
Electric power SDH returns net and is provided with separate return path A and return path B, and return path A is for connecting LTE core router A and baseband processing unit equipment B BU_A, and return path B is for connecting LTE core router B and baseband processing unit equipment B BU_B;
Terminal equipment UE_A and Remote Radio Unit equipment RRU_A radio communication; terminal equipment UE_B and Remote Radio Unit equipment RRU_B radio communication, and unguarded interval between the working frequency range of the working frequency range of Remote Radio Unit equipment RRU_A and Remote Radio Unit equipment RRU_B.
2. physically-isolated electric power TD-LTE multiple service supporting system according to claim 1, is characterized in that: terminal equipment UE_A and terminal equipment UE_B is equipped with independently memory encryption and stores operator code and centre frequency.
3. physically-isolated electric power TD-LTE multiple service supporting system according to claim 1 and 2, it is characterized in that: baseband processing unit equipment B BU_A is communicated by CPRI agreement with Remote Radio Unit equipment RRU_A, baseband processing unit equipment B BU_B is communicated by CPRI agreement with Remote Radio Unit equipment RRU_B.
4. physically-isolated electric power TD-LTE multiple service supporting system according to claim 1 and 2, is characterized in that: clock source is the clock source based on IEEE1588V2 consensus standard.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520936738.9U CN205160796U (en) | 2015-11-23 | 2015-11-23 | Electric power TD -LTE multi -service system of bearing that physics is kept apart |
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| CN201520936738.9U CN205160796U (en) | 2015-11-23 | 2015-11-23 | Electric power TD -LTE multi -service system of bearing that physics is kept apart |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109474934A (en) * | 2018-11-02 | 2019-03-15 | 京信通信系统（中国）有限公司 | A kind of base station system and base station expansion method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109474934A (en) * | 2018-11-02 | 2019-03-15 | 京信通信系统（中国）有限公司 | A kind of base station system and base station expansion method |
| CN109474934B (en) * | 2018-11-02 | 2021-12-14 | 京信网络系统股份有限公司 | Base station system and base station capacity expansion method |
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