CN101175291B - Distribution method and device executing AxC to RRU connected with BBU - Google Patents
Distribution method and device executing AxC to RRU connected with BBU Download PDFInfo
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- CN101175291B CN101175291B CN2007101778655A CN200710177865A CN101175291B CN 101175291 B CN101175291 B CN 101175291B CN 2007101778655 A CN2007101778655 A CN 2007101778655A CN 200710177865 A CN200710177865 A CN 200710177865A CN 101175291 B CN101175291 B CN 101175291B
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Abstract
The present invention discloses a method and a device for assigning AxC (Antenna xCarrier) to a RRU (Radio Remote Unit) connected with a BBU (Base Band Unit). The method includes a manual configuration step and a dynamic self-adaptive configuration step, the dynamic self-adaptive configuration step further includes a data collection step, a data calculation step and a data configuration step; the data collection step is used to dynamically collect the submitted parameters, the parameters include the AxC carrier frequency capability of the RRU, the line rate supported by a BBU transmission link, the bits of IQ data sampling, the oversampling rate and part or all of switching granularities supported by the BBU; the data calculation step is used to calculate the parameters collected in the data collection step in order to obtain the AxC and an IQ time slot parameter which need to be assigned to each RRU; the data configuration step is used to uniformly configure the AxC and IQ data on an optical fiber interface according to the parameter results obtained by calculation in the data calculation step.
Description
Technical field
The present invention relates to the IQ data map mode between a kind of wireless base-station control node and the distant-end node, relate in particular to distribution method and device that a kind of RRU that BBU is upward connected carries out AxC (Antenna xCarrier, antenna carrier).
Background technology
The BBU+RRU base station has the industry initiative in the TD-SCDMA field.It is divided into indoor baseband processing unit BBU (Base Band Unit) and remote radio unit (RRU) RRU (Radio Remote Unit), baseband processing unit BBU concentrates and places, link to each other with remote radio unit (RRU) RRU by cable (optical fiber etc.), thereby realize economical, flexible, networking fast.Baseband processing unit BBU constitutes a resource pool, can share for a plurality of RRU.RRU then provides the radio frequency processing function of signal, adopts cable to connect between the two, constitutes the distributed base station framework.
Data communication between BBU and the RRU, a variety of standards have been formulated in the communications field: such as first kind is common public radio interface (Common Public Radio Interface, be called for short CPRI), in the CPRI standard, BBU is defined as radio equipment controller (Radio Equipment Controller accordingly, be called for short REC), the corresponding wireless device (Radio Equipment is called for short RE) that is called of RRU.Second kind is open base station architecture tissue (being called for short Obsai), and this tissue is divided into standardized module to the base station: remote radio unit (RRU) RRU and Base-Band Processing master unit BBU.
The wireless data that transmits between BBU and the RRU mainly is the data flow through two components of the inphase quadrature after the radio frequency part modulation of the baseband portion of BBU or RRU (In-Phase/Quadrature is called for short IQ).User face data between BBU and the RRU transmits with the IQ data mode, and the IQ data are transmitted in the IQ container, in relevant standard, is called antenna carrier (Antenna xCarrier is called for short AxC) container.Publication number is that the Chinese patent of CN101056313A discloses the patent that a kind of name is called " the IQ data transmission method between a kind of BBU and the RRU ", BBU that provides in this documents and the IQ data transmission method between the RRU comprise: sampling rate is that the wireless system IQ data of the basic frame rate integer multiple of transmission system are placed directly into the AxC subchannel and transmit; Otherwise be placed in 1 or N AxC subchannel by packing manner and transmit.This transmission method compatible directly mapping and data packet delivery mode; the direct transmit chip speed wireless system IQ data consistent among public data capsule passage with the basic frame rate of transmission system; and other wireless systems of packing transmission IQ data; possesses the flexibility of the high efficiency and the packet mode of the direct mapping mode of AxC subchannel; can transmit multiple wireless system IQ data simultaneously, satisfy the networking needs of multimode Base Band Unit and multimode remote radio unit (RRU).
Because a plurality of RRU radio frequency part can be shared a base band resource pool BBU, RRU may support different carrier frequency disposal abilities, such as supporting 1AxC, the radio frequency support capability of many specifications such as 6AxC.And guarantee the mutual cascade of different RRU, to increase the sector carrier frequency ability and to save physics cost etc.This just requires, the RRU of the last connection of BBU, and the IQ data that must guarantee the different RRUs of carrying on the transmission line can be independent of each other and the maximum cable resource of utilizing mutually.Just there is a problem in this, the RRU of cascade (comprising the different carrier frequency AxC ability specifications of supporting), how to share same link circuit resource, promptly how effectively to distribute AxC, carry out the IQ transfer of data, can more effectively utilize the transmission link resource, and can guarantee that the IQ data of the different RRUs of carrying on the transmission line are independent of each other.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of BBU is gone up distribution method and the device that the RRU that connects carries out AxC, and system can finish radio frequency and the required physical resource parameter configuration of base-band resource transmission automatically.Effectively reduce the Operation and Maintenance complexity, greatly save operation expense.
For achieving the above object, the RRU that BBU is upward connected provided by the invention carries out the distribution method of AxC, comprises the manual configuration step, and described method also comprises a dynamic self-adapting configuration step, and this dynamic self-adapting configuration step further comprises:
Data acquisition step is used for the parameter that dynamic acquisition reports, this parameter comprise in the exchange granularity that line speed, the BIT number of IQ data sampling, over-sampling rate, BBU that the AxC carrier frequency ability of RRU and BBU transmission link are supported support partly or entirely;
The data computation step is used for obtaining AxC and the IQ minislot parameter that each RRU needs distributes according to the calculation of parameter that described data acquisition step is gathered;
The data configuration step is according to calculating the parameter result who obtains in the described data computation step, AxC and IQ data on the unified configuration optical fiber interface.
The above-mentioned RRU that BBU go up is connected carries out the distribution method of AxC, described automatic configuration step also comprise the parameter of will distribute write database storage or be distributed to RRU and BBU respectively exchange transport module, carry out the IQ transfer of data.
The above-mentioned RRU that BBU is upward connected carries out the distribution method of AxC, and described manual configuration step is used for realizing by configuration manually when needs are distributed to a certain RRU to a certain line resource fully.
The above-mentioned RRU that BBU is upward connected carries out the distribution method of AxC, in the described data acquisition step, the exchange granularity that the line speed of described BBU transmission link support and BBU support is to be determined and reported by the exchange capacity that the exchange transport module of BBU side is supported according to BBU; The AxC carrier frequency ability of BIT number, over-sampling rate and the RRU of described IQ data sampling is finished and is reported by common calculate of described RRU and BBU.
The above-mentioned RRU that BBU go up is connected carries out the distribution method of AxC, and it is to form the situation of a sub-district or exchange capacity that the BBU top-cross is changed transport module according to many RRU to unify on the transmission link AxC data granularity and merge and report that the collection of the AxC carrier frequency ability of described RRU reports.
The above-mentioned RRU that BBU is upward connected carries out the distribution method of AxC, and in the described data configuration step, described AxC comprises with the equipping rules of IQ data: the IQ data continuous dispensing that same RRU carrier frequency is handled is in the same place; Carrier frequency IQ data continuous dispensing under the same sub-district together; Different RRU forms the same exchange granularity of IQ Time Slot Occupancy of the AxC of same sector on the same light mouth.
The above-mentioned RRU that BBU is upward connected carries out the distribution method of AxC, and a plurality of equipping ruless of described AxC and IQ data can make up or reduce as required.
Further, the present invention also provides a kind of device that adopts said method, comprises a manual configuration module and an adaptive configuration module, and this adaptive configuration module further comprises:
Data acquisition module is used for the parameter that dynamic acquisition reports, this parameter comprise in the exchange granularity that line speed, the BIT number of IQ data sampling, over-sampling rate, BBU that the AxC carrier frequency ability of RRU and BBU transmission link are supported support partly or entirely;
Data computation module is used for obtaining AxC and the IQ minislot parameter that each RRU needs distributes according to the calculation of parameter of described data collecting module collected;
The data configuration module is calculated the parameter result who obtains according to described data computation module, AxC and IQ data on the unified configuration optical fiber interface.
Said apparatus, described adaptive configuration module also comprises a database, described data configuration module writes described database storage with the parameter of distributing or is distributed to RRU and the exchange transport module of BBU, carries out the IQ transfer of data.
Said apparatus, described manual configuration module is used for realizing by configuration manually when needs are distributed to a certain RRU to a certain line resource fully.
Compared with prior art, the present invention is by gathering specifications parameter automatically, and AxC resource allocation and IQ time slot mapping are finished in the dynamic self-adapting configuration, have the following advantages:
Parameter is gathered automatically and is reported, and does not want too much manual operation and safeguards, only need configure the BBU and the RRU type of base station, and system can finish radio frequency and the required physical resource parameter configuration of base-band resource transmission automatically.Effectively reduce the Operation and Maintenance complexity, greatly save operation expense.According to parameter, dynamic self-adapting configuration AxC and IQ time slot mapping algorithm, efficient is higher, and implementation complexity is not high yet.
Description of drawings
Fig. 1 is AxC and the IQ time slot mapping flow chart that BBU of the present invention distributes RRU automatically;
Fig. 2 is that the present invention goes up the distributor schematic diagram that the RRU that connects carries out AxC to BBU.
Embodiment
Below in conjunction with the drawings and specific embodiments technical solution of the present invention being described in detail, with purpose, scheme and the effect of further understanding the present invention, but is not as the restriction to claims protection range of the present invention.
With reference to figure 1, the RRU that BBU is upward connected of the present invention carries out the distribution method of AxC container, be used to comprise the distributor of a data acquisition module, data computation module and data configuration module, this method comprises a dynamic self-adapting configuration step, and this dynamic self-adapting configuration step further comprises:
Step S101, the parameter that the data acquisition module dynamic acquisition reports, this parameter comprise some or all of parameter in the carrier frequency ability of BIT number (16bit/15bit), over-sampling rate (doubly single/2 sampling rates), the RRU of line speed that the AxC carrier frequency ability of RRU and BBU transmission link support, IQ data sampling, the exchange granularity that BBU supports;
Step S102, data computation module obtains AxC and the IQ minislot parameter that each RRU needs distributes according to the calculation of parameter of gathering among the described step S101;
Step S103, the data configuration module is according to calculating the parameter result who obtains among the described step S102, AxC and IQ data on the unified configuration optical fiber interface;
Step S104, what the configuration result among the distributing step S103 was given RRU and BBU respectively exchanges transport module, perhaps the parameter of distributing is write database storage;
Step S105 carries out the IQ transfer of data.
In step S101, the maximum line speed that above-mentioned BBU transmission link is supported and the maximum exchange granularity of Switching Module etc. according to the exchange capacity decision of supporting, and report data acquisition module by the exchange transport module of BBU side; The AxC carrier frequency abilities of above-mentioned circuit sampling BIT number, over-sampling rate, RRU etc. are finished by RRU and common calculating of BBU, and are reported the data acquisition module of BBU.The acquisition module collection reports and gathers parameter, if parameter is complete or mistake, walks abnormality processing flow process (wait or report and alarm etc. again).Because the tailorability of content of parameter, promptly above-mentioned parameter can expand or reduce as required, therefore can carry out next step calculating parameter setting according to the different demands that reports.
The AxC carrier frequency ability collection of RRU reports, carry out according to certain principle, such as the situation of forming a sub-district according to many RRU, perhaps base band BBU top-cross is changed the exchange capacity of transport module etc., can unify the merging of AxC data granularity on the transmission link and report, with the distribution of the AxC that carries out next step.
In above-mentioned steps S102, the priority of configuration AxC can be set, the AxC that is used for step S103 distributes, and the AxC priority allocation such as belonging to same sub-district fits together continuously, parameters calculated priority difference.
In addition, among the above-mentioned steps S103, carry out basic principle for the certain principle of the basic of distribution of result of calculation: the IQ data continuous dispensing that same RRU carrier frequency is handled together; Carrier frequency IQ data continuous dispensing under the same sub-district together; Different RRU forms the same exchange granularity of IQ Time Slot Occupancy of the carrier wave AxC of same sector on the same light mouth.
Above-mentioned distribution principle and priority can make up reduction as required.Priority can be determined in the artificial selection configuration.Such as the carrier frequency situation of handling a sub-district according to many RRU, the parameter that the AxC data granularity merges and reports on the unified transmission link that carries out, can distribute the RRU of same sub-district to take same exchange granularity unit, thereby improve bandwidth availability ratio, effectively save cost.The algorithm advantage here embodies a concentrated reflection of, and promptly can carry out AxC flexibly and distribute, and priority and distribution principle can dispose.
Above-mentioned assigning process also comprises the mode of configuration manually except that the dynamic self-adapting method of salary distribution, specifically determine distribution principle by priority, and generally speaking, the user does not wish too much to intervene resource distribution work.Sometimes need a certain line resource is distributed to a certain RRU fully, just need configuration manually.
With reference to figure 2, the invention allows for a kind of above-mentioned device 20 that the last RRU that connects of BBU is carried out the distribution method of AxC that adopts, comprise a manual configuration module 201 and a dynamic self-adapting configuration module 200, this dynamic self-adapting configuration module 200 further comprises: data acquisition module 201, be used for the parameter that dynamic acquisition reports, this parameter comprises some or all of parameter in the exchange granularity that line speed, the BIT number of IQ data sampling, over-sampling rate, BBU that the AxC carrier frequency ability of RRU and BBU transmission link are supported support; Data computation module 202 is used for obtaining AxC and the IQ minislot parameter that each RRU needs distributes according to the calculation of parameter of described data collecting module collected; Data configuration module 203 is calculated the parameter result who obtains according to described data computation module, AxC and IQ data on the unified configuration optical fiber interface; Database 204, the parameter that described data configuration module 203 is distributed write described database 204 storages or are distributed to the exchange transport module of RRU21 and BBU22, carry out the IQ transfer of data.Above-mentioned manual configuration module 201 is used for realizing by configuration manually when needs are distributed to a certain RRU to a certain line resource fully.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (8)
1. the remote radio unit (RRU) RRU that baseband processing unit BBU go up is connected carries out the distribution method of antenna carrier AxC, comprise the manual configuration step, it is characterized in that described method also comprises a dynamic self-adapting configuration step, this dynamic self-adapting configuration step further comprises:
Data acquisition step, be used for the parameter that dynamic acquisition reports, this parameter comprise in the exchange granularity that line speed, the bit BIT number of inphase quadrature IQ data sampling, over-sampling rate, BBU that the AxC carrier frequency ability of RRU and BBU transmission link are supported support partly or entirely;
The data computation step is used for obtaining AxC and the IQ minislot parameter that each RRU needs distributes according to the calculation of parameter that described data acquisition step is gathered;
The data configuration step is according to calculating the parameter result who obtains in the described data computation step, AxC and IQ data on the unified configuration optical fiber interface; And
The parameter of distributing write database storage or be distributed to RRU and BBU respectively exchange transport module, carry out the IQ transfer of data.
2. the RRU that BBU is upward connected according to claim 1 carries out the distribution method of AxC, it is characterized in that described manual configuration step is used for realizing by configuration manually when needs are distributed to a certain RRU to a certain line resource fully.
3. the RRU that BBU is upward connected according to claim 1 carries out the distribution method of AxC, it is characterized in that, in the described data acquisition step, the exchange granularity that the line speed of described BBU transmission link support and BBU support is to be determined and reported by the exchange capacity that the exchange transport module of BBU side is supported according to BBU; The AxC carrier frequency ability of BIT number, over-sampling rate and the RRU of described IQ data sampling is finished and is reported by common calculate of described RRU and BBU.
4. the RRU that BBU is upward connected according to claim 3 carries out the distribution method of AxC, it is characterized in that it is to form the situation of a sub-district or exchange capacity that the BBU top-cross is changed transport module according to many RRU to unify on the transmission link AxC data granularity and merge and report that the collection of the AxC carrier frequency ability of described RRU reports.
5. the RRU that BBU is upward connected according to claim 4 carries out the distribution method of AxC, it is characterized in that in the described data configuration step, described AxC comprises with the equipping rules of IQ data: the IQ data continuous dispensing that same RRU carrier frequency is handled is in the same place; Carrier frequency IQ data continuous dispensing under the same sub-district together; Different RRU forms the same exchange granularity of IQ Time Slot Occupancy of the AxC of same sector on the same light mouth.
6. the RRU that BBU is upward connected according to claim 5 carries out the distribution method of AxC, it is characterized in that a plurality of equipping ruless of described AxC and IQ data can make up or reduce as required.
7. device that adopts each described method in the claim 1～6, a manual configuration module is characterized in that, also comprise an adaptive configuration module, this adaptive configuration module further comprises:
Data acquisition module, be used for the parameter that dynamic acquisition reports, this parameter comprise in the exchange granularity that line speed, the bit BIT number of inphase quadrature IQ data sampling, over-sampling rate, BBU that the antenna carrier AxC carrier frequency ability of remote radio unit (RRU) RRU and baseband processing unit BBU transmission link are supported support partly or entirely;
Data computation module is used for obtaining AxC and the IQ minislot parameter that each RRU needs distributes according to the calculation of parameter of described data collecting module collected;
The data configuration module, calculate the parameter result who obtains according to described data computation module, AxC and the IQ data on the optical fiber interface are disposed in unification, and the parameter of distributing is write described database storage or is distributed to RRU and the exchange transport module of BBU, carry out the IQ transfer of data.
8. device according to claim 7 is characterized in that, described manual configuration module is used for realizing by configuration manually when needs are distributed to a certain RRU to a certain line resource fully.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007101778655A CN101175291B (en) | 2007-11-21 | 2007-11-21 | Distribution method and device executing AxC to RRU connected with BBU |
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| CN2007101778655A CN101175291B (en) | 2007-11-21 | 2007-11-21 | Distribution method and device executing AxC to RRU connected with BBU |
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| CN101175291A CN101175291A (en) | 2008-05-07 |
| CN101175291B true CN101175291B (en) | 2010-09-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102685896B (en) * | 2011-03-11 | 2014-09-17 | 鼎桥通信技术有限公司 | Method and device for acquiring carrier resource state |
| CN103209484B (en) * | 2012-01-12 | 2016-05-04 | 鼎桥通信技术有限公司 | A kind of management method of dynamic resource and system |
| CN103442447B (en) * | 2013-08-29 | 2016-09-07 | 大唐移动通信设备有限公司 | Carrier scheduling method and system |
| CN103607266A (en) * | 2013-11-28 | 2014-02-26 | 中国联合网络通信集团有限公司 | Method and device for sending signals |
| CN105227280A (en) * | 2014-06-26 | 2016-01-06 | 中兴通讯股份有限公司 | A kind of data processing equipment and method, BBU, RRU |
| TW201613404A (en) * | 2014-09-23 | 2016-04-01 | Inst Information Industry | Network communication apparatus |
| CN106470072B (en) * | 2015-08-14 | 2020-06-12 | 中兴通讯股份有限公司 | Optical interface resource allocation method and device for cascade device in base station, base station and communication system |
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| WO2006040653A1 (en) * | 2004-10-12 | 2006-04-20 | Telefonaktiebolaget Lm Ericsson (Publ) | Communication between a radio equipment control node and multiple remote radio equipment nodes |
| CN1860811A (en) * | 2003-09-30 | 2006-11-08 | Lm爱立信电话有限公司 | Interface, apparatus, and method for communication between a radio equipment control node and a remote radio equipment node in a radio base station |
| WO2007124797A1 (en) * | 2006-04-27 | 2007-11-08 | Atlas Elektronik Gmbh | Process for locating sound projecting targets |
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Patent Citations (3)
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| CN1860811A (en) * | 2003-09-30 | 2006-11-08 | Lm爱立信电话有限公司 | Interface, apparatus, and method for communication between a radio equipment control node and a remote radio equipment node in a radio base station |
| WO2006040653A1 (en) * | 2004-10-12 | 2006-04-20 | Telefonaktiebolaget Lm Ericsson (Publ) | Communication between a radio equipment control node and multiple remote radio equipment nodes |
| WO2007124797A1 (en) * | 2006-04-27 | 2007-11-08 | Atlas Elektronik Gmbh | Process for locating sound projecting targets |
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