CN102752781A - Radio base station equipment, radio equipment controller and radio equipment - Google Patents
Radio base station equipment, radio equipment controller and radio equipment Download PDFInfo
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- CN102752781A CN102752781A CN2012102078586A CN201210207858A CN102752781A CN 102752781 A CN102752781 A CN 102752781A CN 2012102078586 A CN2012102078586 A CN 2012102078586A CN 201210207858 A CN201210207858 A CN 201210207858A CN 102752781 A CN102752781 A CN 102752781A
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Abstract
The invention discloses a radio communication system, which comprises radio communication equipment. The radio communication equipment comprises radio equipment (RE) supporting at least two communication modes and a radio equipment controller (REC) supporting at least two communication modes; the RE comprises at least two REC-RE interfaces; at least two REC-RE interfaces transmit different communication modes of datum, and the number of the REC-RE interfaces corresponds to the number of supporting communication modes; REC comprises at least two REC-RE interfaces which correspond to the at least two REC-RE interfaces of the RE; and at least two REC-RE interfaces of the RE are connected with the REC-RE interfaces corresponding to the identical communication modes of the REC by a wire cable. In the embodiment of the invention, the REC-RE interfaces are relatively independent, and the realization of the clock synchronization processing in the communication system can be omitted, so that an effect of realizing multi-mode solving proposal easily and at low cost is achieved.
Description
Technical field
The present invention relates to wireless communication field, particularly relate to wireless communication system, radio equipment controller and wireless device.
Background technology
Along with developing rapidly of radio network technique, be the investment of protection operator, reduce the risk that turn of the market brings, industry has proposed the notion of Multi-Mode Base Station.The a kind of of Multi-Mode Base Station notion is expressed as: in a rack, support the base station that two or more communication standard is used simultaneously.
The advantage of Multi-Mode Base Station mainly contains:
(1) can reuse base station equipment, comprise and reuse hardware platform and software architecture;
(2) can repeat to install by minimizing equipment, reduce the space, site;
For example, GSM/UMTS dual-mode base station notion is to occur along with the ripe gradually of IMT-2000 technology in later 1990s.Yet, because the life cycle of GSM is longer than expection, and software radio (Software Defined Radio, SDR) technological break-through is made slow progress, and the Multi-Mode Base Station technological based on SDR far can not satisfy the demand of operator.
Market is still very urgent to the demand of Multi-Mode Base Station solution.
Summary of the invention
The technical problem that embodiment of the present invention will solve provides a kind of wireless communication system, radio equipment controller and wireless device.
For solving the problems of the technologies described above, one embodiment of the present invention provide a kind of wireless base station device, comprise the wireless device RE and the radio equipment controller REC that supports said at least two kinds of communication standards of at least two kinds of communication standards of support; Said RE comprises at least two REC-RE interfaces; The data of said at least two REC-RE interfaces transmission different communication standard, and said at least two REC-RE number of ports are corresponding with the communication standard number that said RE supports; Said REC comprises at least two REC-RE interfaces and corresponding with at least two REC-RE interfaces of said RE; At least two REC-RE interfaces of said RE interconnect through cable with the REC-RE interface of the corresponding same communication standard of said REC.
Describe and to find out from above embodiment; At least two of RE REC-RE interfaces interconnect through cable with the REC-RE interface of the corresponding same communication standard of REC in the embodiment of the present invention; The REC-RE interface is relatively independent; Thereby can not need in communication system, realize the processing of clock synchronization, reached convenient, realized the effect of bimodulus, multimode solution at low cost.
Further, the embodiment of the invention can through increasing the standard function veneer among the REC, be changed the software of RE simultaneously lessly on the basis of single system base station, can realize the Multi-Mode Base Station solution, and implementation is convenient, and cost is low.Simultaneously, the business data flow of multiple standard is relatively independent, and a kind of standard traffic failure can not influence the business of another kind of standard, and system reliability is higher.
Description of drawings
Fig. 1 is the sketch map of an execution mode of wireless communication system of the present invention;
Fig. 2 is that four optical-fiber cable CPRI interface of the present invention connects sketch map;
Fig. 3 is a mRRU/mRFU embodiment sketch map of the present invention;
Fig. 4 is the sketch map of another execution mode of wireless communication system of the present invention.
Embodiment
Wireless base station device can be divided into radio equipment controller (Radio Equipment Controller is called for short REC) and wireless device (Radio Equipment is called for short RE).The interface that connects REC and RE can be called the REC-RE interface.
Common public radio interface (Common Public Radio Interface, be called for short CPRI) standard is a REC who is formulated by communications equipment manufacturer and the interface standard between the RE.In this standard, the REC-RE interface that connects REC and RE is called the CPRI interface.
Open base station architecture motion (Open Base Station Architecture Initiative is called for short OBSAI) standard is that another is by the REC of communications equipment manufacturer formulation and the interface standard between the RE.In this standard, the REC-RE interface that connects REC and RE is called the OBSAI interface.
The REC of different systems can comprise: master clock module, baseband processing module, base band radio frequency interface module etc.These functional modules of same standard or these functional modules of different systems can highly integratedly design in one; Such as being integrated on one or more veneer; And be arranged at the very little Base Band Unit of a volumes (Baseband Unit; Abbreviation BBU) in the box, forms a Field Replaceable (FieldReplaceable Unit is called for short FRU).
The form of RE can comprise: Remote Radio Unit (Radio Remote Unit is called for short RRU), radio frequency and filter unit (Radio and Filter Unit is called for short RFU), multimode RRU (mRRU), multi-mode RF U (mRFU) or the like.
Embodiment of the present invention is that example is explained with the situation in the WCDMA/CDMA bimodulus (W/C bimodulus) mainly, the bimodulus of other standard or multimode combination, for example: GSM; CDMA, WCDMA, TD-SCDMA, LTE (Long Term Evolution), WIMAX; Ultra-Mobile Broadband (Ultra Mobile Broadband; Be called for short " UMB "), personal handyphone system (Personal Handyphone System is called for short " PHS "); Or any two kinds of standards of the new standards such as radio communication standard that occur of AIE (Air Interface Evolution, be called for short " AIE ") and follow-up evolution or the combination of multiple standard can be analogized.Embodiment of the present invention is that example is explained with the CPRI interface mainly, the interface type between other REC-RE, such as: the REC-RE proprietary protocol interface of OBSAI interface, miscellaneous equipment supplier oneself definition can be analogized.In like manner, entity/equipment/device/unit that some of this paper appearance have specific names can replace with the entity/equipment with identical or similar functions/device/unit equally, no longer superfluous chatting.
Consult Fig. 1, the sketch map of an execution mode of wireless communication system of the present invention.
Wireless communication system comprises a Wireless Telecom Equipment 110.Wireless Telecom Equipment 110 comprises: at least one REC_103, and at least one supports the RE_101 of multimode, such as: mRRU or mRFU.Be connected through cable 109 between REC_103 and the RE_101, such as: optical fiber, cable, netting twine etc.Among Fig. 1, between REC_103 and the RE_101 through 109 be connected be through the 101a among the figure with 103 through 109 be connected and represent, other RE (for example: 101b, 101c) with 103 through 109 be connected similarly, no longer draw among the figure, omit.
REC13 can comprise: master clock module 107, baseband processing module 104, the base band radio frequency interface module 105 of supporting at least two kinds of communication standards.The master clock module of at least two kinds of communication standards of said support, baseband processing module and base band radio frequency interface module are relatively independent in logic, can interconnect through core bus or panel bus or a CPRI electricity mouthful cable mode.These functional modules of same standard or these functional modules of different systems can highly integratedly design in one, such as being integrated on one or more veneer, and are arranged in the very little BBU box of a volumes, form a FRU.
Master clock module 107 can comprise the master clock module of different systems, such as: the W master clock module 107b of the C master clock module 107a of CDMA standard and WCDMA standard.The master clock module of different systems can be a master clock module independently physically, also can be the master clock module of physically unifying.One of ordinary skill in the art will appreciate that; Be illustrated as that two independently master clock module modules---107a and 107b are merely a kind of logical description; 107a and 107b can be two separate physical modules in physics realization, and promptly the master clock module of different systems is separate; Also can be a physical module of physically unifying, promptly different systems be total to the master clock module.
Baseband processing module 104 can comprise the baseband processing module of different systems, such as: the W baseband processing module 104b of the C baseband processing module 104a of CDMA standard and WCDMA standard.The baseband processing module of different systems can be a baseband processing module independently physically, also can be the baseband processing module of physically unifying.One of ordinary skill in the art will appreciate that; Be illustrated as that two independently baseband processing module modules---104a and 104b are merely a kind of logical description; 104a and 104b can be two separate physical modules in physics realization, and promptly the baseband processing module of different systems is separate; Also can be a physical module of physically unifying, i.e. different systems cobasis tape handling module.
Base band radio frequency interface module 105 can comprise the base band radio frequency interface module of different systems, such as: the W base band radio frequency interface module 105b of the C base band radio frequency interface module 105a of CDMA standard and WCDMA standard.The base band radio frequency interface module of different systems can be a base band radio frequency interface module independently physically, also can be the base band radio frequency interface module of physically unifying.One of ordinary skill in the art will appreciate that; Be illustrated as that two independently base band radio frequency interface module modules---105a and 105b are merely a kind of logical description; 105a and 105b can be two separate physical modules in physics realization, and promptly the base band radio frequency interface module of different systems is separate; Also can be a physical module of physically unifying, i.e. different systems cobasis band radio frequency interface module.
The master clock module of different systems, baseband processing module, base band radio frequency interface module are all relatively independent in logic, can interconnect through core bus or panel bus or a CPRI electricity mouthful cable mode.Each functional module of same standard or each functional module of different systems can highly integratedly design in one, such as being integrated on one or more veneer, and are arranged in the very little BBU box of a volumes, form a FRU.
The base band radio frequency interface module of different systems connects the CPRI interface of the corresponding same communication standard of mRRU/mRFU respectively through cable; The CPRI interface of the data of feasible transmission different communication standard is relatively independent; Thereby can not need in BBU, realize the processing of clock synchronization, reached the effect of convenient realization dual-mode solution.
The REC-RE interface of data that transmits the different communication standard respectively is relatively independent, and the business data flow of multiple standard is relatively independent, and a kind of standard traffic failure can not influence the business of another kind of standard, and system reliability is higher.The carrier number that the REC of different systems can support is configurable flexibly.
At least the RRU/RFU that has two CPRI interfaces, usually its CPRI interface can be configured to CPRI interface connect higher level equipment (such as: REC), another CPRI interface is used for subordinate's cascade, with different networking modes such as support chain ring shape or stars.When the CPRI interface that is used for subordinate's cascade is idle, can pass through updating software release or Loading Control software, hardware is not done change, realization is used to the CPRI interface of free time and supports the dual-mode base station solution.Be that example is explained the embodiment of the invention mainly below with the dual-mode base station solution.When two above CPRI interfaces are idle, can be used to the CPRI interface of free time and support the Multi-Mode Base Station solution.Multi-Mode Base Station solution and dual-mode base station solution are similar, and those of ordinary skills can derive and learn based on the understanding to dual-mode base station solution embodiment of the present invention, repeat no more.
The cable 109 that connects among Fig. 1 between the REC-RE interface of REC103 and the corresponding same communication standard of RE101 can be: 22 core optical cables or 14 core optical cable are connected with two CPRI interfaces of mRRU/mRFU respectively in order to the base band radio frequency interface module of different systems among the realization REC (such as: C base band radio frequency interface module 105a and W base band radio frequency interface module 105b).Like this, through two independently the CPRI interface just can support W/C dual-mode base station scheme.In the present embodiment, RE has two CPRI interfaces, supports two kinds of communication standards, and the communication standard number that the CPRI number of ports of RE and RE support is corresponding.Transmit the data of different communication standards between the REC-RE interface of REC103 and the corresponding same communication standard of RE101 respectively, the data of promptly a pair of REC-RE interface transmission WCDMA standard, another is to the data of REC-RE interface transmission of CDMA standard.
Consult Fig. 2, four optical-fiber cable CPRI interface of the present invention connects sketch map.
CPRI0 among the figure representes that CPRI1 representes in order to support the CPRI interface of another kind of standard in order to support a kind of CPRI interface of standard.Like diagram, in BBU one side, the transmitting-receiving of CPRI0 and the transmitting-receiving of CPRI1 respectively account for two cores, altogether four-core; In RRU/RFU one side, the transmitting-receiving of CPRI0 and the transmitting-receiving of CPRI1 respectively account for two cores, altogether four-core.
Consult Fig. 3, mRRU/mRFU embodiment sketch map of the present invention.
On the basis of existing RRU/RFU with two CPRI interfaces, can pass through updating software release or Loading Control software, hardware is not done change, realization is used to the CPRI interface of free time and supports the dual-mode base station solution.Two CPRI interfaces with RRU/RFU of two CPRI interfaces all are operated under the SLAVE pattern.At down direction: the CPRI interface module extracts control information and is transferred to main control module from the CPRI data flow of two kinds of standards, extract clock information and be transferred to clock module, extracts carrier data information and gives middle radio-frequency module.Clock module provides clock information to RRU/RFU.The carrier data of two kinds of standards is passed through filtering and Digital Up Convert respectively in middle radio-frequency module after, close the road through the emission of radio-frequency transmissions passage, thereby realize multiple standard shared radio frequency transmission channel.
Description through above embodiment can be found out; Among the wireless communication system embodiment provided by the invention; At least two REC-RE interfaces of RE interconnect through cable with the REC-RE interface of the corresponding same communication standard of REC; The REC-RE interface is relatively independent, thereby can not need in communication system, realizes the processing of clock synchronization, has reached convenient, has realized the effect of bimodulus, multimode solution at low cost.
Further, the embodiment of the invention can through increasing the standard function veneer among the REC, be changed the software of RE simultaneously lessly on the basis of single system base station, can realize the Multi-Mode Base Station solution, and implementation is convenient, and cost is low.Simultaneously, the business data flow of multiple standard is relatively independent, and a kind of standard traffic failure can not influence the business of another kind of standard, and system reliability is higher.
The REC interface module of different systems is relatively independent.The carrier number that the REC of different systems can support is configurable flexibly.
Fig. 4 is the sketch map of another execution mode of wireless communication system of the present invention.
The REC of different systems is website or common rack altogether, is connected to multimode RE through different REC-RE interfaces and realizes the Multi-Mode Base Station solution.
Wireless communication system among Fig. 4 comprises: a Wireless Telecom Equipment 401, and this Wireless Telecom Equipment comprises:
Support at least two kinds of communication standards radio equipment controller REC_405---standard 1REC_405a and standard 2REC_405b, the REC of two different systems are placed in the base station site 403;
Support the wireless device RE_409 of at least two kinds of communication standards;
This REC and this RE include two REC-RE interfaces 407; Said REC-RE interface is supported the different communication standard---standard 1 and standard 2; Said REC-RE interface transmits the data of standard 1 and standard 2 respectively; And said REC-RE number of ports is corresponding with the communication standard number of being supported;
The REC-RE interface of REC interconnects through cable with the REC-RE interface of the corresponding same communication standard of RE, and promptly the REC-RE interface _ 407a of standard 1 interconnects, and the REC-RE interface _ 407b of standard 2 interconnects.
Description through above embodiment can be found out; Among the wireless communication system embodiment provided by the invention; At least two REC-RE interfaces of RE interconnect through cable with the REC-RE interface of the corresponding same communication standard of REC; The REC-RE interface is relatively independent, thereby can not need in communication system, realizes the processing of clock synchronization, has reached convenient, has realized the effect of bimodulus, multimode solution at low cost.
Further, the embodiment of the invention can through increasing the standard function veneer among the REC, be changed the software of RE simultaneously lessly on the basis of single system base station, can realize the Multi-Mode Base Station solution, and implementation is convenient, and cost is low.Simultaneously, the business data flow of multiple standard is relatively independent, and a kind of standard traffic failure can not influence the business of another kind of standard, and system reliability is higher.
The REC interface module of different systems is relatively independent.The carrier number that the REC of different systems can support is configurable flexibly.
More than wireless communication system provided by the present invention, radio equipment controller and wireless device have been carried out detailed introduction through specific embodiment, the explanation of above embodiment just is used for help understanding method of the present invention and thought thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, part all can change on embodiment and range of application.In sum, this description should not be construed as limitation of the present invention.
Claims (14)
1. wireless base station device is characterized in that:
Said wireless base station device comprises the wireless device RE and the radio equipment controller REC that supports said at least two kinds of communication standards of at least two kinds of communication standards of support;
Said RE comprises at least two REC-RE interfaces, the communication data stream of said at least two REC-RE interfaces transmission different communication standard, and said at least two REC-RE number of ports are corresponding with the communication standard number that said RE supports;
Said REC comprises at least two REC-RE interfaces and corresponding with at least two REC-RE interfaces of said RE;
At least two REC-RE interfaces of said RE interconnect through cable with the REC-RE interface of the corresponding same communication standard of said REC.
2. wireless base station device as claimed in claim 1 is characterized in that, the REC of the said at least two kinds of communication standards of said support comprises: master clock module, baseband processing module and the base band radio frequency interface module of supporting said at least two kinds of communication standards; The master clock module of the said at least two kinds of communication standards of said support, baseband processing module and base band radio frequency interface module are relatively independent in logic, and interconnect through bus mode.
3. wireless base station device as claimed in claim 1 is characterized in that, the RE of at least two kinds of communication standards of said support comprises: REC-RE interface module, main control module, clock module and middle radio-frequency module;
Said REC-RE interface module is used for: extract control information from the communication data of at least two kinds of communication standards stream and be transferred to said main control module, extract clock information and be transferred to said clock module, extract carrier data offer said in radio-frequency module;
Said main control module is used to handle said control information;
Radio-frequency module is used in said: after the carrier data process filtering and Digital Up Convert with at least two kinds of communication standards, close the road through the emission of radio-frequency transmissions passage;
Said clock module is used for to RE clock information being provided.
4. wireless base station device as claimed in claim 1 is characterized in that, when said RE supports two kinds of communication standards and comprises two REC-RE interfaces, saidly is connected to through cable: interconnect through 22 core optical cables or 14 core optical cable.
5. like each described wireless base station device of claim 1 to 4, it is characterized in that said REC-RE interface is a common public radio interface.
6. like each described wireless base station device of claim 1 to 3, it is characterized in that said communication standard comprises: GSM, CDMA, WCDMA, TD-SCDMA, LTE, WIMAX, UMB, PHS, AIE.
7. a radio equipment controller that is used for wireless base station device as claimed in claim 1 is characterized in that, comprising: at least two REC-RE interfaces; The communication data stream of said at least two REC-RE interfaces transmission different communication standard, and said REC-RE number of ports is corresponding with the communication standard number of being supported; The REC-RE interface of said REC interconnects through cable with the REC-RE interface of the corresponding same communication standard of wireless device RE.
8. radio equipment controller as claimed in claim 7 is characterized in that,
Said REC comprises: master clock module, baseband processing module and the base band radio frequency interface module of supporting at least two kinds of communication standards; The master clock module of at least two kinds of communication standards of said support, baseband processing module and base band radio frequency interface module are relatively independent in logic, and interconnect through bus mode.
9. radio equipment controller as claimed in claim 7 is characterized in that,
Said REC-RE interface is a common public radio interface.
10. radio equipment controller as claimed in claim 7 is characterized in that,
When said REC-RE interface number is two, saidly be connected to: interconnect through 22 core optical cables or 14 core optical cable through cable.
11. a wireless device that is used for wireless base station device as claimed in claim 1 is characterized in that, comprising: at least two REC-RE interfaces; The communication data stream of said at least two REC-RE interfaces transmission different communication standard, and said at least two REC-RE number of ports are corresponding with the communication standard number of being supported; At least two REC-RE interfaces of said RE interconnect through cable with the REC-RE interface of the corresponding same communication standard of radio equipment controller REC.
12. wireless device as claimed in claim 11 is characterized in that,
Said RE comprises: REC-RE interface module, main control module, clock module and middle radio-frequency module;
Said REC-RE interface module is used for: extract control information from the communication data of at least two kinds of communication standards stream and be transferred to said main control module, extract clock information and be transferred to said clock module, extract carrier data offer said in radio-frequency module;
Said main control module is used to handle said control information;
Radio-frequency module is used in said: after the carrier data process filtering and Digital Up Convert with at least two kinds of communication standards, close the road through the emission of radio-frequency transmissions passage;
Said clock module is used for to RE clock information being provided.
13. wireless device as claimed in claim 11 is characterized in that,
Said REC-RE interface is a common public radio interface.
14. wireless device as claimed in claim 11 is characterized in that,
When said REC-RE interface number is two, saidly be connected to: interconnect through 22 core optical cables or 14 core optical cable through cable.
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