CN101064548A - Method for synchronizing parameter of remote terminal RF unit in wireless communication system - Google Patents
Method for synchronizing parameter of remote terminal RF unit in wireless communication system Download PDFInfo
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- CN101064548A CN101064548A CN 200710074092 CN200710074092A CN101064548A CN 101064548 A CN101064548 A CN 101064548A CN 200710074092 CN200710074092 CN 200710074092 CN 200710074092 A CN200710074092 A CN 200710074092A CN 101064548 A CN101064548 A CN 101064548A
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Abstract
The invention discloses a synchronization method of remote end radio frequency unit parameters that includes following processes: A. the remote end radio frequency unit is started to send parameter distribution requirement to base band control unit; B. the base band control unit sends the related parameter of the remote end radio frequency unit to the remote end radio frequency unit; C. the remote end radio frequency unit distributes the parameters based on received parameters to start normal work. The method of the invention obtains parameters from BBU when RRU is started to guarantee the RRU and relate parameters of RRU are in-phase, so the parameter synchronization is in time and reliable.
Description
Technical field
The present invention relates to the method for remote radio unit (RRU) and baseband control unit parameter synchronization in a kind of wireless communication system.
Background technology
The framework development of wireless communication system forms such trend gradually: radio frequency unit is separated with baseband control unit (BBU), and pass through long-distance transmissions means (optical fiber or cable) with both connections, then radio frequency unit is placed on the place of various needs, is called remote radio unit (RRU) (RRU).The advantage of this framework is that two mutual independent parts are separated, and stand-alone development has not only reduced cost, has also improved the flexibility of networking, and has made things convenient for project installation.Therefore, this framework more and more obtains user's approval, and the application scenario is also more and more.
Under the framework of BBU+RRU, usually, RRU belongs to managed object, BBU belongs to management object, a BBU can manage a plurality of RRU, links to each other by transmission cable between BBU and the RRU, and the network of various topological structures such as that a plurality of RRU can form is star-like, chain, ring-like, tree type links to each other with BBU, make under this framework and very difficulty of BBU and RRU parameter synchronization can cause the RRU can't operate as normal if BBU is asynchronous with the RRU parameter.
In actual use at present, keeping BBU and RRU parameter synchronization is to adopt the Operation and Maintenance webmaster of base station to be connected to BBU, the user carries out corresponding modify by the Operation and Maintenance webmaster to the parameter of RRU, amended RRU parameter at first is sent on the BBU, send RRU to by BBU again, RRU obtains moving after these parameters.
The defective of prior art is: RRU is in startup and normal course of operation, RRU relevant parameter on the BBU may change, thereby the parameter variation that RRU this moment can not respond on the BBU in time causes both possibilities asynchronous, and the user needs make amendment to the parameter of RRU once more.
Summary of the invention
In order to solve the problems of the technologies described above, the present invention proposes the synchronous method of parameter of remote terminal RF unit in a kind of wireless communication system, this method can in time guarantee reliably on RRU and the BBU the RRU relevant parameter synchronously.
To achieve these goals, the present invention has adopted following technical scheme:
The synchronous method of parameter of remote terminal RF unit in a kind of wireless communication system comprises following processing procedure:
A, remote radio unit (RRU) start the back and send parameter-configuring request to baseband control unit;
B, baseband control unit send to remote radio unit (RRU) with the remote radio unit (RRU) relevant parameter;
C, remote radio unit (RRU) carry out parameter configuration according to the parameter that receives, the beginning operate as normal.
When the remote radio unit (RRU) relevant parameter in the baseband control unit changes, also comprise following processing procedure:
D, baseband control unit send the remote radio unit (RRU) relevant parameter of modification to remote radio unit (RRU);
E, remote radio unit (RRU) receive and enable the parameter that step D sends.
Also comprise the steps: in the described step e
Remote radio unit (RRU) receives and sends parameter modification after the parameter that step D sends and receive the response to baseband control unit.
Also be provided with timer in the described baseband control unit, also comprise following steps after the described step e:
In the timing, baseband control unit receives that the parameter modification that remote radio unit (RRU) sends receives the response the timeing closing device;
Timer expiry, baseband control unit notifying operation safeguard that the parameter of this remote radio unit (RRU) of webmaster fails synchronously.
The identity sign that contains remote radio unit (RRU) in the parameter-configuring request in the described steps A, baseband control unit obtains the remote radio unit (RRU) relevant parameter according to this identity sign retrieval and sends corresponding remote radio unit (RRU) among the described step B.
The transmission of the parameter-configuring request of remote radio unit (RRU) is to adopt the timed sending mode in the described steps A.
Described remote radio unit (RRU) relevant parameter comprises working frequency points, the bandwidth of remote radio unit (RRU).
Compared with prior art, the invention has the beneficial effects as follows:
1) RRU gets parms from BBU when starting at once, guarantees that the RRU relevant parameter on RRU and the BBU just enters operate as normal synchronously.Thereby parameter synchronization is in time reliable.
2) when the RRU relevant parameter on the BBU changes, BBU notifies RRU to revise parameter at once, guarantees that the parameter of RRU can be upgraded synchronously with the RRU relevant parameter on the BBU, has further increased the promptness and the reliability of parameter synchronization.
3) if after the RRU relevant parameter on the BBU is revised, the parameter of RRU fails to upgrade synchronously, and the BBU notifying operation is safeguarded webmaster, in time deals with thereby make the user in time to know to go wrong.
Description of drawings
Fig. 1 is that RRU starts parameter synchronization schematic flow sheet afterwards in the embodiment of the invention;
Fig. 2 is that RRU starts parameter synchronization interacting message figure afterwards in the embodiment of the invention;
Fig. 3 is the afterwards synchronous schematic flow sheet of BBU parameter modification in the embodiment of the invention;
Fig. 4 is a synchronization message interaction figure after the BBU parameter modification in the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is further detailed.
Parameter synchronization method of the present invention is after RRU starts, and is initiatively synchronous to the BBU required parameter, up to just enter normal operating conditions after BBU gets access to parameter; And when the parameter of relevant RRU changed on BBU, BBU was sent to most recent parameters RRU at once, guarantee RRU can with the synchronous undated parameter of BBU.
RRU in the specific embodiment of the present invention starts the process of back and BBU parameter synchronization referring to Fig. 1 and 2, mainly comprises the following step:
(1) RRU sends the required parameter configuration messages to BBU.Under the situation of a plurality of RRU, the identity sign RRUID that can have RRU in the message is so that BBU can discern.Send the mode that request mode can adopt timed sending, transmission that also can not timing or circulation send etc.
(2) BBU receives the required parameter configuration messages of RRU, and with the configuration parameter of RRU, the working frequency points of RRU for example, bandwidth etc. are responded and given RRU.Under a plurality of RRU situations, BBU retrieves corresponding RRU configuration parameter according to the identity sign RRUID of the RRU that contains in the message.
(3) RRU receives the configuration parameter that BBU responds, and enables this configuration parameter, enters the operate as normal attitude.Stop simultaneously sending the required parameter configuration messages to BBU.
Parameter synchronization process when the last parameter about RRU of BBU changes mainly comprises the following step shown in Fig. 3 and 4:
(1) BBU sends the parameter modification notification message to RRU, comprises the RRU relevant parameter of change in the message.
(2) RRU receives that BBU sends to after the parameter of oneself, enables new parameter.
In order to guarantee the synchronous of RRU and BBU, can adopt response mode, RRU sends parameter modification at once and receives the response to BBU after receiving parameter.
Waiting timer can be set on BBU, and in the timing of timer, BBU receives that the parameter modification of RRU receives the response, and then kills waiting timer.
If waiting timer is overtime, do not receive that still RRU responds, the BBU notifying operation safeguards that webmaster " parameter of RRU does not keep synchronously with BBU " makes the user can in time understand parameter synchronization and goes wrong and can in time handle.
The technical scheme that the present invention proposes not only has can be immediately and the advantage of BBU synchronization parameter after allowing RRU start, and can also guarantee BBU in the time of parameter modification, and timely synchronization parameter is to RRU.Also can in time notify the user manual modification when occurring failing when synchronous.
The present invention not only is suitable for the WCDMA base station system, also is fit to the wireless communication base station system of other communication systems, as systems such as WiMAX, TD-SCDMA, CDMA, GSM.
Claims (7)
1, the synchronous method of parameter of remote terminal RF unit in a kind of wireless communication system is characterized in that, comprises following processing procedure:
A, remote radio unit (RRU) start the back and send parameter-configuring request to baseband control unit;
B, baseband control unit send to remote radio unit (RRU) with the remote radio unit (RRU) relevant parameter;
C, remote radio unit (RRU) carry out parameter configuration according to the parameter that receives, the beginning operate as normal.
2, the synchronous method of parameter of remote terminal RF unit in the wireless communication system as claimed in claim 1 is characterized in that, when the remote radio unit (RRU) relevant parameter in the baseband control unit changes, also comprises following processing procedure:
D, baseband control unit send the remote radio unit (RRU) relevant parameter of modification to remote radio unit (RRU);
E, remote radio unit (RRU) receive and enable the parameter that step D sends.
3, the synchronous method of parameter of remote terminal RF unit in the wireless communication system as claimed in claim 2 is characterized in that, also comprises the steps: in the described step e
Remote radio unit (RRU) receives and sends parameter modification after the parameter that step D sends and receive the response to baseband control unit.
4, the synchronous method of parameter of remote terminal RF unit in the wireless communication system as claimed in claim 3 is characterized in that, also is provided with timer in the described baseband control unit, also comprises following steps after the described step e:
In the timing, baseband control unit receives that the parameter modification that remote radio unit (RRU) sends receives the response the timeing closing device;
Timer expiry, baseband control unit notifying operation safeguard that the parameter of this remote radio unit (RRU) of webmaster fails synchronously.
5, as the synchronous method of parameter of remote terminal RF unit in each described wireless communication system of claim 1 to 4, it is characterized in that, the identity sign that contains remote radio unit (RRU) in the parameter-configuring request in the described steps A, baseband control unit obtains the remote radio unit (RRU) relevant parameter according to this identity sign retrieval and sends corresponding remote radio unit (RRU) among the described step B.
As the synchronous method of parameter of remote terminal RF unit in the described wireless communication system of claim 1 to 4, it is characterized in that 6, the transmission of the parameter-configuring request of remote radio unit (RRU) is to adopt the timed sending mode in the described steps A.
As the synchronous method of parameter of remote terminal RF unit in the described wireless communication system of claim 1 to 4, it is characterized in that 7, described remote radio unit (RRU) relevant parameter comprises working frequency points, the bandwidth of remote radio unit (RRU).
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| CN 200710074092 CN101064548A (en) | 2007-04-23 | 2007-04-23 | Method for synchronizing parameter of remote terminal RF unit in wireless communication system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010145399A1 (en) * | 2009-10-15 | 2010-12-23 | 中兴通讯股份有限公司 | Method, system and multi-frequency label for dynamically adjusting radio frequency parameters of multi-frequency label |
| WO2011009245A1 (en) * | 2009-07-23 | 2011-01-27 | 中兴通讯股份有限公司 | Multimode base station, radio frequency unit and realization method thereof |
| CN101442798B (en) * | 2007-11-22 | 2011-10-26 | 中兴通讯股份有限公司 | Ascending/descending synchronous communication method for radio base station control node and cascade far-end node thereof |
| CN101572576B (en) * | 2008-04-30 | 2012-11-28 | 京信通信系统（中国）有限公司 | Channel correcting method of multichannel TD-RRU |
| WO2016180195A1 (en) * | 2015-09-02 | 2016-11-17 | 中兴通讯股份有限公司 | Fuzzy configuration method and apparatus for ru radio frequency capability and background host |
| JP2022034027A (en) * | 2016-03-25 | 2022-03-02 | 株式会社Ｎｔｔドコモ | Base station and cell setting method |
-
2007
- 2007-04-23 CN CN 200710074092 patent/CN101064548A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101442798B (en) * | 2007-11-22 | 2011-10-26 | 中兴通讯股份有限公司 | Ascending/descending synchronous communication method for radio base station control node and cascade far-end node thereof |
| CN101572576B (en) * | 2008-04-30 | 2012-11-28 | 京信通信系统（中国）有限公司 | Channel correcting method of multichannel TD-RRU |
| WO2011009245A1 (en) * | 2009-07-23 | 2011-01-27 | 中兴通讯股份有限公司 | Multimode base station, radio frequency unit and realization method thereof |
| WO2010145399A1 (en) * | 2009-10-15 | 2010-12-23 | 中兴通讯股份有限公司 | Method, system and multi-frequency label for dynamically adjusting radio frequency parameters of multi-frequency label |
| CN102043935A (en) * | 2009-10-15 | 2011-05-04 | 中兴通讯股份有限公司 | Multi-frequency tag as well as method and system for dynamically regulating radio frequency parameter thereof |
| CN102043935B (en) * | 2009-10-15 | 2014-06-11 | 中兴通讯股份有限公司 | Multi-frequency tag as well as method and system for dynamically regulating radio frequency parameter thereof |
| WO2016180195A1 (en) * | 2015-09-02 | 2016-11-17 | 中兴通讯股份有限公司 | Fuzzy configuration method and apparatus for ru radio frequency capability and background host |
| JP2022034027A (en) * | 2016-03-25 | 2022-03-02 | 株式会社Ｎｔｔドコモ | Base station and cell setting method |
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