CN103347274B - The collocation method of Remote Radio Unit and distributed base station - Google Patents
The collocation method of Remote Radio Unit and distributed base station Download PDFInfo
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Abstract
The invention discloses the collocation method of a kind of Remote Radio Unit and a kind of distributed base station。Facility information inquiry request is sent to the first Remote Radio Unit by Base Band Unit；Described first Remote Radio Unit carries out facility information inquiry, and the facility information inquired is sent to described Base Band Unit；Described Base Band Unit determines the second Remote Radio Unit needing to reconfigure according to described facility information, and configuration order is sent to described second Remote Radio Unit；Described second Remote Radio Unit reconfigures according to described configuration order。In the inventive solutions, BBU can obtain the facility information of RRU in base station, thus the ruuning situation of monitoring base station；And BBU can pass through to analyze to determine new RRU allocation plan, and corresponding RRU is made to reconfigure by configuration order。By above procedure, just achieve BBU and to the inquiry of all RRU and reconfigure。
Description
Technical field
The present invention relates to communication technical field, particularly to collocation method and a kind of distributed base station of a kind of Remote Radio Unit。
Background technology
Along with the development of communication technology, base station products is more and more abundanter, and from overall development, distributed base station represents the basic trend of " base station of future generation " undoubtedly。The key concept of distributed base station structure is exactly the Base Band Unit (BBU of conventional macro base station, and Remote Radio Unit (RRU BandwidthBasedUnit), RemoteRadioUnit) separating, interface between the two is called Ir interface (InterfacebetweentheRRUandtheBBU)。Ir interface supports the network topology structures such as single-point connection, star-like connection, chain connection and annular connection。
In existing Ir interfacing, the information that Ir interface application layer is realized between BBU and RRU by IE message is mutual。According to TD-LTE distributed base station Ir interfacing requirement, have 20 IE message flows at present, respectively communication port is set up and version verification, version querying, version is downloaded, non-volatile, status poll, parameter query, parameter configuration, initialization of calibration, periodic calibration, calibration result is inquired about, latency measurement, alarm report, alarm inquiry, daily record is uploaded, RRU resets, by control word, long-range RRU is resetted, loopback, detection in place, cell configuration and periodic calibration result report (referring to " requirement of TD-LTE distributed base station Ir interfacing ")。And when disposing distributed base station, just need during system initialization BBU and RRU is configured, the such as distance etc. between both maximum transmission power, equipment, all then fixing by calculating, then utilize above-mentioned 20 IE message flows, just can realize the information of BBU and RRU in the running of base station mutual。
But, in some cases, it is likely to need an operating distributed base station is carried out extraordinary maintenance, or in this base station, increases RRU device newly, or, need the disaster area temporary erection distributed base station after earthquake, and existing 20 IE message flows are to realize reconfiguring RRU device, therefore, in these cases, base station self cannot configure RRU device flexibly, rapidly, and again base station is carried out integral deployment and can waste substantial amounts of time and resource。That is, because the configuration of BBU and RRU is all fixing in existing distributed base station, so base station cannot realize self-organizing or self-configuring。
Summary of the invention
(1) technical problem to be solved
It is an object of the invention to provide the collocation method of a kind of Remote Radio Unit and a kind of distributed base station, it is possible to make the BBU in distributed base station inquire about and configure all of RRU。
(2) technical scheme
In order to solve above-mentioned technical problem, the present invention proposes the collocation method of a kind of Remote Radio Unit, said method comprising the steps of:
Facility information inquiry request is sent to the first Remote Radio Unit by S1, Base Band Unit；
S2, described first Remote Radio Unit carry out facility information inquiry, and the facility information inquired are sent to described Base Band Unit；
S3, described Base Band Unit determine the second Remote Radio Unit needing to reconfigure according to described facility information, and configuration order is sent to described second Remote Radio Unit；
S4, described second Remote Radio Unit reconfigure according to described configuration order。
Optionally, described first Remote Radio Unit is one or more, and described second Remote Radio Unit is one or more；
And/or,
Described first Remote Radio Unit is identical or different with described second Remote Radio Unit。
Optionally, step S1 specifically includes:
Described facility information inquiry request is write an Ir interface protocol frame by described Base Band Unit, and by Ir interface, a described Ir interface protocol frame is sent to described first Remote Radio Unit。
Optionally, step S2 specifically includes:
S201, described first Remote Radio Unit parse described facility information inquiry request, and carry out facility information inquiry after receiving a described Ir interface protocol frame；
Facility information write the 2nd Ir interface protocol frame that S202, described first Remote Radio Unit will inquire, and described 2nd Ir interface protocol frame is sent to described Base Band Unit。
Optionally, step S3 specifically includes:
After S301, described Base Band Unit receive described 2nd Ir interface protocol frame, parse described facility information, and determine the second Remote Radio Unit needing to reconfigure according to described facility information,
Described configuration order is write the 3rd Ir interface protocol frame by S302, described Base Band Unit, and described 3rd Ir interface protocol frame is sent to described second Remote Radio Unit；
Step S4 specifically includes:
Described second Remote Radio Unit parses described configuration order and reconfigures after receiving described 3rd Ir interface protocol frame。
Optionally, step S1 specifically includes:
Described facility information inquiry request is write manufacturer's custom field of a described Ir interface protocol frame by described Base Band Unit, and by Ir interface, a described Ir interface protocol frame is sent to described first Remote Radio Unit；
Step S202 specifically includes:
The facility information inquired is write manufacturer's custom field of described 2nd Ir interface protocol frame by described first Remote Radio Unit, and described 2nd Ir interface protocol frame is sent to described Base Band Unit；
Step S302 specifically includes:
Described configuration order is write manufacturer's custom field of described 3rd Ir interface protocol frame by described Base Band Unit, and described 3rd Ir interface protocol frame is sent to described second Remote Radio Unit。
Optionally, described facility information inquiry request, described facility information and described configuration order are XML format。
Optionally, described facility information inquiry request include in antenna number inquiry request, antenna maximum transmission power inquiry request, passage maximum transmission power inquiry request, radio-frequency channel inquiry request and heartbeat message inquiry request any one or multiple。
Optionally, further comprise the steps of: before step S1
S0, described Base Band Unit send topological structure inquiry request to all Remote Radio Unit in distributed base station, and each Remote Radio Unit returns a response message to described Base Band Unit, makes described Base Band Unit know the topological structure of described distributed base station；
In step S3, according to described facility information, described Base Band Unit determines that the second Remote Radio Unit needing to reconfigure specifically includes:
Described Base Band Unit determines the second Remote Radio Unit needing to reconfigure according to the topological structure of described facility information and described distributed base station。
The present invention proposes a kind of distributed base station simultaneously, and described distributed base station includes Base Band Unit and multiple Remote Radio Unit,
Described Base Band Unit is for being sent to the first Remote Radio Unit by facility information inquiry request, and the facility information returned according to described first Remote Radio Unit determines and need the second Remote Radio Unit of reconfiguring, then configuration order is sent to described second Remote Radio Unit；
Described first Remote Radio Unit is for carrying out facility information inquiry according to described facility information inquiry request, and the facility information inquired is returned to described Base Band Unit；
Described second Remote Radio Unit is for reconfiguring according to described configuration order。
(3) beneficial effect
In the technical scheme that the present invention proposes, BBU can pass through to send the mode of facility information inquiry request, obtains the facility information of RRU in base station, thus the ruuning situation of monitoring base station；According to the facility information obtained, BBU can pass through to analyze to determine new RRU allocation plan, and by sending the mode of configuration order, makes corresponding RRU reconfigure。By above procedure, just achieve BBU and to the inquiry of all RRU and reconfigure。
Accompanying drawing explanation
Fig. 1 is the flow chart of a kind of detailed description of the invention of the collocation method of the Remote Radio Unit that the present invention proposes。
Fig. 2 is the structural representation of distributed base station in the embodiment of the present invention 1。
Fig. 3 is the structural representation of distributed base station in the embodiment of the present invention 2。
Fig. 4 is the structural representation of distributed base station in the embodiment of the present invention 3。
Fig. 5 is the structural representation of distributed base station in the embodiment of the present invention 4。
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail。
Fig. 1 represents a kind of detailed description of the invention of the collocation method of the Remote Radio Unit that the present invention proposes, and said method comprising the steps of:
Facility information inquiry request is sent to the first Remote Radio Unit by S1, Base Band Unit；
S2, described first Remote Radio Unit carry out facility information inquiry, and the facility information inquired are sent to described Base Band Unit；
S3, described Base Band Unit determine the second Remote Radio Unit needing to reconfigure according to described facility information, and configuration order is sent to described second Remote Radio Unit；
S4, described second Remote Radio Unit reconfigure according to described configuration order。
In the technical scheme that the present invention proposes, BBU can pass through to send the mode of facility information inquiry request, obtains the facility information of RRU in base station, thus the ruuning situation of monitoring base station；According to the facility information obtained, BBU can pass through to analyze to determine new RRU allocation plan, and by sending the mode of configuration order, makes corresponding RRU reconfigure。By above procedure, just achieve BBU and to the inquiry of all RRU and reconfigure。
One distributed base station generally includes a BBU and multiple RRU, and the system structure of base station can be one or more the combination during single-point connection, star-like connection, chain connection and annular connect。It should be noted that in the inventive solutions, the first described Remote Radio Unit and the second Remote Radio Unit, it is possible to be same RRU, it is also possible to be different RRU。That is, BBU is after the facility information inquiring about and obtaining a certain RRU, both can be that this RRU is reconfigured, it is also possible to be as required other RRU is configured。It addition, BBU sends facility information inquiry request or configuration order just for a RRU, it is also possible to be send message to multiple RRU simultaneously。That is: described first Remote Radio Unit is one or more, and described second Remote Radio Unit is one or more；Described first Remote Radio Unit is identical or different with described second Remote Radio Unit。
Before step S1, it is also possible to include step:
S0, described Base Band Unit send topological structure inquiry request to all Remote Radio Unit in distributed base station, and each Remote Radio Unit returns a response message to described Base Band Unit, makes described Base Band Unit know the topological structure of described distributed base station。The purpose of this step is to make BBU know the RRU comprised in the topological structure of whole system and base station in advance, thus facilitating BBU, RRU is carried out facility information inquiry and configuration by targetedly。
Request message can be sent by BBU by all of Ir interface, after receiving request message with the BBU RRU being joined directly together, a response message can be returned to BBU, if this RRU opposite side is still connected to RRU simultaneously, then the request message received from BBU is sent to next RRU by this RRU, and response message is returned to BBU by this RRU by next RRU equally。BBU will appreciate that the topological structure of whole system after receiving the response message of all RRU。
In step sl, BBU sends facility information inquiry request firstly the need of to RRU。Here facility information inquiry request can be in antenna number inquiry request, antenna maximum transmission power inquiry request, passage maximum transmission power inquiry request, radio-frequency channel inquiry request and heartbeat message inquiry request any one or multiple。Because generally the information between BBU and RRU utilizes Ir interface protocol frame to realize alternately, and includes manufacturer's custom field in Ir interface protocol frame, therefore, we can utilize this manufacturer's custom field to transmit information。That is, the preferred implementation of step S1 is: facility information inquiry request is write manufacturer's custom field of an Ir interface protocol frame by Base Band Unit, after having encapsulated, by Ir interface, a described Ir interface protocol frame is sent to the first Remote Radio Unit。
In step s 2, after RRU receives the facility information inquiry request of BBU, facility information inquiry can be carried out, antenna number, antenna maximum transmission power, passage maximum transmission power, radio-frequency channel number or the heartbeat messages etc. that such as inquiry RRU device is supported, then return to BBU by the facility information inquired by Ir interface。
In the preferred embodiment of the present invention, step S2 specifically includes:
S201, described first Remote Radio Unit parse described facility information inquiry request, and carry out facility information inquiry after receiving a described Ir interface protocol frame；
The facility information inquired is write manufacturer's custom field of the 2nd Ir interface protocol frame by S202, described first Remote Radio Unit, after having encapsulated, described 2nd Ir interface protocol frame is sent to Base Band Unit。
In step s3, after BBU receives facility information, it is necessary to according to facility information and system topology, reconfigure RRU device resource, and configuration order is sent to corresponding RRU by Ir interface。
In the preferred embodiment of the present invention, step S3 specifically includes:
After S301, Base Band Unit receive described 2nd Ir interface protocol frame, parse described facility information, and determine the second Remote Radio Unit needing to reconfigure according to described facility information；
Configuration order is write manufacturer's custom field of the 3rd Ir interface protocol frame by S302, Base Band Unit, after having encapsulated, described 3rd Ir interface protocol frame is sent to described second Remote Radio Unit。
In step s 4, after RRU receives the configuration order of BBU, it is necessary to complete reconfiguring of RRU device resource according to configuration order。
In the preferred embodiment of the present invention, step S4 specifically includes:
Described second Remote Radio Unit parses described configuration order and reconfigures after receiving described 3rd Ir interface protocol frame。
It addition, for needing to write the described facility information inquiry request in manufacturer's custom field of Ir interface protocol frame, described facility information and described configuration order, it is preferred to use the form of XML file。
Below by specific embodiment, the process that realizes of said method is described in detail。
Embodiment 1
As shown in Figure 2, a certain distributed base station adopts mixed structure, not only includes hub-and-spoke configuration but also include chain structure, and it has 1 BBU and 6 RRU, connect each through Ir interface between BBU and RRU, between RRU and RRU, and RRU1 and RRU2 therein is in same community。
The first step, after whole system starts, first BBU can inquire about the topological structure of whole system。Topological structure inquiry request is sent by BBU by all Ir interfaces, with the BBU RRU being joined directly together, such as, after RRU3 receives request message, a response message can be returned to BBU, if RRU3 opposite side is still connected to RRU simultaneously, such as RRU5, then the request message received from BBU is sent to RRU5 by RRU3, and response message is returned to BBU by RRU3 by RRU5 simultaneously。BBU will appreciate that the topological structure of whole system after receiving the response message of all RRU。After BBU inquires the topological structure of whole system, it is possible to carry out facility information and queried。
Second step, because RRU1 and RRU2 is placed in same community, RRU1 normal operation under normal circumstances, RRU2 does not work, and exists as backup。Present BBU constantly to inquire about the facility information of RRU1, it is ensured that RRU1 normal operation, so that it is guaranteed that the user in this community can normal talking always。
Facility information inquiry request is write manufacturer's custom field of an Ir interface protocol frame by BBU, and is packaged into Ir interface protocol frame together with other data, is sent to RRU1 by Ir interface。
3rd step, RRU1 parses, after receiving an Ir interface protocol frame, the information that manufacturer's custom field is corresponding, and confirmation is after the facility information inquiry request of this RRU device, carries out facility information inquiry, for instance the heartbeat message of inquiry RRU1。Then Query Result is write manufacturer's custom field of the 2nd Ir interface protocol frame by RRU1 in the form of an xml-file, and is packaged into Ir interface protocol frame together with other data, returns to BBU by Ir interface。
4th step, BBU receives after the 2nd Ir interface protocol frame of RRU1 end, parses the RRU1 facility information that manufacturer's custom field is corresponding, judges RRU1 whether normal operation by the heartbeat message of RRU1。When BBU finds RRU1 operation irregularity, BBU will start stand-by equipment RRU2。Configuration order is write manufacturer's custom field of the 3rd Ir interface protocol frame by BBU, and is packaged into Ir interface protocol frame together with other data, is sent to RRU2 by Ir interface。
5th step, after RRU2 receives the 3rd Ir interface protocol frame, extracts the RRU configuration information that manufacturer's custom field is corresponding, and starts the replacement RRU1 equipment work of RRU2 equipment。Thus can ensure that the user in this community can normal talking always。
By above-mentioned steps, BBU can monitor the ruuning situation of each RRU device in this base station in real time；When discovering device exception or fault, it is possible to start alternate device by configuration order in time, thus ensure that whole base station reliability of operation, improve QoS of customer。
When embodiment 1 describes BBU by inquiry apparatus information discovery RRU fault, the scheme that RRU is reconfigured。Base Band Unit is determined according to facility information needs the Remote Radio Unit that reconfigures, under different application scenarios, exists and different reconfigures scheme, such as:
Mode one, for being in two RRU of neighbor cell, if both overlay areas overlap, and both total traffic kept stables, then can adopt and only make one of them RRU work and make it provide the allocation plan of service for Liang Ge community simultaneously, to save system resource, improve utilization rate of equipment and installations；
Mode two, for the portfolio RRU with seasonal change, it is possible to adopting and be under battery saving mode or the allocation plan of full load MODE of operation, adjusting its mode of operation according to the change of portfolio, thus saving device resource；
Mode three, for the less RRU of a portfolio, if community residing for it can be provided service by other RRU completely, then can adopt and make this RRU work or out-of-work allocation plan, namely, when other RRU portfolio is less, this RRU quits work, and when other RRU portfolio is increased sharply, this RRU works。
Below for the situation of each mode above-mentioned, come for a specific example the scheme that reconfigures in every kind of situation is illustrated。
Embodiment 2
Embodiment 2 illustrates for aforesaid way one。
In the existing network of communication system covers, all there is traffic swarming in many regions: data or voice telephone traffic amount are periodically migrated at two adjacent intersites every day back and forth, but the total traffic kept stable of two places。
As it is shown on figure 3, a certain distributed base station includes RRU1 and RRU2, RRU1 provides service for community 1, RRU2 provides service for community 2。Community 1 is in shopping centre, and daytime period portfolio is relatively big, and at night, swarming occurs in user, and portfolio reduces；Community 2 is in residential block, and daytime period portfolio is less, and at night, portfolio increases, and there is the effect that traffic is complementary between the two。
Period by day, BBU is by inquiring about the traffic information of RRU1 and RRU2, find that RRU1 portfolio is bigger, RRU2 portfolio is then only small, and then, BBU configures RRU1 and makes its normal operation, configuration RRU2 makes it quit work, owing to having overlay region between community 1 and community 2, therefore RRU1 is except the telephone traffic processed in community 1, it is also possible to process a small amount of telephone traffic in community 2。At night-time hours, BBU is by inquiring about the traffic information of RRU1 and RRU2, find that RRU1 portfolio is only small, RRU2 portfolio then increases, and then, BBU configures RRU1 makes it quit work, configuration RRU2 makes its normal operation, now, RRU2 is except the telephone traffic processed in community 2, it is also possible to process a small amount of telephone traffic in community 1。
By the way, it is possible to save system resource, the utilization rate of equipment is improved。
Embodiment 3
Embodiment 3 illustrates for aforesaid way two。
As shown in Figure 4, the RRU1 in a certain distributed base station provides service for community 1。Community 1 is in residential block, and daytime period portfolio is less, and increases in night service amount。
Period by day, BBU is by inquiring about the traffic information of RRU1, it has been found that its portfolio is less, and then, BBU makes RRU1 work in battery saving mode (closing some equipment) by configuration order, in order to save resource；And at night, BBU is by inquiring about the traffic information of RRU1, it has been found that its portfolio is relatively big, and then, BBU makes RRU1 full-load operation by configuration order, to facilitate bigger telephone traffic at process night。
Embodiment 4
Embodiment 4 illustrates for aforesaid way three。
As it is shown in figure 5, a certain distributed base station includes 3 RRU, RRU1, RRU2 and RRU3 is respectively at community 1, in community 2 and community 3, there is lap community 1, community 2 and community 3。
Under normal circumstances, owing to community 3 telephone traffic is less, therefore BBU makes RRU1 and RRU2 normal operation by configuration order, makes RRU3 quit work, and the telephone traffic in community 3 is undertaken by RRU1 and RRU2。BBU inquires about the facility information of RRU1 and RRU2 at set intervals to understand current telephone traffic。If at a time, the telephone traffic at 3 community laps is increased sharply, and by the facility information of inquiry RRU1 and RRU2, BBU detects that telephone traffic is increased sharply after, BBU makes RRU3 work by configuring RRU3, so as to the telephone traffic that normal process is increased sharply。
Except the application scenarios described in above-described embodiment, when RRU device newly-increased to a certain operating distributed base station, equally possible according to the method for the invention, newly-increased RRU is configured, without affecting the properly functioning of base station。
The present invention proposes a kind of distributed base station simultaneously, and described distributed base station includes Base Band Unit and multiple Remote Radio Unit, wherein:
Described Base Band Unit is for being sent to the first Remote Radio Unit by facility information inquiry request, and the facility information returned according to described first Remote Radio Unit determines and need the second Remote Radio Unit of reconfiguring, then configuration order is sent to described second Remote Radio Unit；
Described first Remote Radio Unit is for carrying out facility information inquiry according to described facility information inquiry request, and the facility information inquired is returned to described Base Band Unit；
Described second Remote Radio Unit is for reconfiguring according to described configuration order。
In described distributed base station, described first Remote Radio Unit is one or more, and described second Remote Radio Unit is one or more；Described first Remote Radio Unit is identical or different with described second Remote Radio Unit。
To sum up, in the technical scheme that the present invention proposes, BBU can pass through to send the mode of facility information inquiry request, obtains the facility information of RRU in base station, thus the ruuning situation of monitoring base station；According to the facility information obtained, BBU can pass through to analyze to determine new RRU allocation plan, and by sending the mode of configuration order, makes corresponding RRU reconfigure。By above procedure, just achieve BBU and to the inquiry of all RRU and reconfigure, so that distributed base station is provided with the performance of self-organizing and self-configuring。
The above is only the preferred embodiment of the present invention; it should be pointed out that, for the person of ordinary skill of the art, under the premise without departing from the technology of the present invention principle; can also making some improvement and replacement, these improve and replace and also should be regarded as protection scope of the present invention。
Claims (3)
1. the collocation method of a Remote Radio Unit, it is characterised in that said method comprising the steps of:
Facility information inquiry request is sent to the first Remote Radio Unit by S1, Base Band Unit；
Step S1 specifically includes:
Described facility information inquiry request is write manufacturer's custom field of an Ir interface protocol frame by described Base Band Unit, and by Ir interface, a described Ir interface protocol frame is sent to described first Remote Radio Unit；
S2, described first Remote Radio Unit carry out facility information inquiry, obtain the facility information of described first Remote Radio Unit, and the facility information inquired is sent to described Base Band Unit；
Step S2 specifically includes:
S201, described first Remote Radio Unit parse described facility information inquiry request, and carry out facility information inquiry after receiving a described Ir interface protocol frame；
The facility information inquired is write manufacturer's custom field of the 2nd Ir interface protocol frame by S202, described first Remote Radio Unit, and described 2nd Ir interface protocol frame is sent to described Base Band Unit；
S3, described Base Band Unit determine the second Remote Radio Unit needing to reconfigure according to described facility information, and configuration order is sent to described second Remote Radio Unit；
Step S3 specifically includes:
After S301, described Base Band Unit receive described 2nd Ir interface protocol frame, parse described facility information, and determine the second Remote Radio Unit needing to reconfigure according to described facility information；
Described configuration order is write manufacturer's custom field of the 3rd Ir interface protocol frame by S302, described Base Band Unit, and described 3rd Ir interface protocol frame is sent to described second Remote Radio Unit；
S4, described second Remote Radio Unit reconfigure according to described configuration order；
Step S4 specifically includes:
Described second Remote Radio Unit parses described configuration order and reconfigures after receiving described 3rd Ir interface protocol frame；
Further comprise the steps of: before step S1
S0, described Base Band Unit send topological structure inquiry request to all Remote Radio Unit in distributed base station, and each Remote Radio Unit returns a response message to described Base Band Unit, makes described Base Band Unit know the topological structure of described distributed base station；
In step S3, according to described facility information, described Base Band Unit determines that the second Remote Radio Unit needing to reconfigure specifically includes:
Described Base Band Unit determines the second Remote Radio Unit needing to reconfigure according to the topological structure of described facility information and described distributed base station；
Described first Remote Radio Unit is one or more, and described second Remote Radio Unit is one or more；
And/or,
Described first Remote Radio Unit is identical or different with described second Remote Radio Unit；
Described facility information inquiry request, described facility information and described configuration order are XML format。
2. method according to claim 1, it is characterized in that, described facility information inquiry request include in antenna number inquiry request, antenna maximum transmission power inquiry request, passage maximum transmission power inquiry request, radio-frequency channel inquiry request and heartbeat message inquiry request any one or multiple。
3. a distributed base station, described distributed base station includes Base Band Unit and multiple Remote Radio Unit, it is characterised in that
Described Base Band Unit is for being sent to the first Remote Radio Unit by facility information inquiry request, and the facility information returned according to described first Remote Radio Unit determines and need the second Remote Radio Unit of reconfiguring, then configuration order is sent to described second Remote Radio Unit；
Described first Remote Radio Unit, for carrying out facility information inquiry according to described facility information inquiry request, obtains the facility information of described first Remote Radio Unit, and the facility information inquired is returned to described Base Band Unit；Described second Remote Radio Unit is for reconfiguring according to described configuration order；
Wherein, described first Remote Radio Unit is one or more, and described second Remote Radio Unit is one or more；
And/or,
Described first Remote Radio Unit is identical or different with described second Remote Radio Unit；
Described facility information inquiry request is write manufacturer's custom field of an Ir interface protocol frame by described Base Band Unit, and by Ir interface, a described Ir interface protocol frame is sent to described first Remote Radio Unit；
Described first Remote Radio Unit parses described facility information inquiry request, and carries out facility information inquiry after receiving a described Ir interface protocol frame；
The facility information inquired is write manufacturer's custom field of the 2nd Ir interface protocol frame by described first Remote Radio Unit, and described 2nd Ir interface protocol frame is sent to described Base Band Unit；
After described Base Band Unit receives described 2nd Ir interface protocol frame, parse described facility information, and determine the second Remote Radio Unit needing to reconfigure according to described facility information；
Described configuration order is write manufacturer's custom field of the 3rd Ir interface protocol frame by described Base Band Unit, and described 3rd Ir interface protocol frame is sent to described second Remote Radio Unit；
Described second Remote Radio Unit parses described configuration order and reconfigures after receiving described 3rd Ir interface protocol frame；
Wherein, described Base Band Unit sends topological structure inquiry request to all Remote Radio Unit in distributed base station, and each Remote Radio Unit returns a response message to described Base Band Unit, makes described Base Band Unit know the topological structure of described distributed base station；
Described Base Band Unit determines the second Remote Radio Unit needing to reconfigure according to the topological structure of described facility information and described distributed base station；
Described facility information inquiry request, described facility information and described configuration order are XML format。
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| CN103188712A (en) * | 2011-12-28 | 2013-07-03 | 中兴通讯股份有限公司 | Distributed base station redundancy overlay network system and wireless signal processing method |
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