CN101203017B - Method of separable reset of communication and chain type far-end radio frequency unit business - Google Patents
Method of separable reset of communication and chain type far-end radio frequency unit business Download PDFInfo
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- CN101203017B CN101203017B CN2007100775541A CN200710077554A CN101203017B CN 101203017 B CN101203017 B CN 101203017B CN 2007100775541 A CN2007100775541 A CN 2007100775541A CN 200710077554 A CN200710077554 A CN 200710077554A CN 101203017 B CN101203017 B CN 101203017B
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Abstract
The invention discloses a chain remote radio frequency unit service and a separable and reducible communication method, and is carried out according to the following procedures: an operation state of a remote radio frequency unit RRU is monitored by a base station; if a service fault exists only in the remote radio frequency unit, a CPU of the remote radio frequency unit is separately reset, and the initiation of the CPU resource is carried out; if a communication fault exists only in the remote radio frequency unit, a communication module, positioned on a hardware logic of the remote radio frequency unit and used for communicating with a baseband unit, is separately reset and is loaded with a logic. The adoption of the method can effectively reduce influences from the operation of a reset of the whole RRU on the communication and service of RRU and influences from the communication between the concatenated RRU and BBU; meanwhile, traditional resetting methods are compatible; on the premise of improving the strength, maintainability, compatibility and stability of a system of the basic station, a new means of debugging the hardware and positioning a problem can also be provided.
Description
Technical field
The invention belongs to field of mobile communication, relate in particular to a kind of method of chain type far-end radio frequency unit business and communication separable reset of separated base station system.
Background technology
For the area occupied that reduces base station system, cut operating costs and improve the reliability of base station system, separated base station system is with Base Band Unit (Base Band Unit, be called for short " BBU ") and remote radio unit (RRU) (Remote Radio Unit, be called for short " RRU ") separate, and by long-distance transmissions means such as optical fiber BBU is connected with RRU.The topological structure that separated base station system is commonly used is that a plurality of RRU form Chain Networks and are connected with BBU, i.e. networking mode as shown in Figure 1, and its typical application scene is the zone that scope is wide and customer volume is little, as highway etc.
For guaranteeing the stability and the continuity of system business, the RRU and the communication between the BBU of separated base station system will guarantee as far as possible.Yet, when RRU operation appearance is unusual, need reset to RRU usually.The RRU of existing base station system resets generally by being that software is initiatively initiated, and writes register and carries out reset operation by calling plate support package (Board Support Package is called for short " BSP ") function.Existing reset mode all is whole sheet reset, and it has mainly operated the CPU that resets, initialization cpu resource, reset and loaded with hardware logic etc.Information between separated base station system BBU and the RRU is transmitted and is come transparent transmission by the RRU hardware logic.If use the existing repositioning method RRU that resets, not only the RRU business is interrupted, and the logic of RRU also lost efficacy and then causes the communicating interrupt of RRU and BBU.Especially, under RRU chain networking situation, use traditional repositioning method RRU that resets to cause all RRU that this RRU hangs down and the communication of BBU to be interrupted, and then cause the paralysis of network large tracts of land.Yet in the practical business that the various needs in base station reset, not all situation all needs the whole RRU that resets, and only resets CPU separately and does not need reseting logic just can achieve the goal as software upgrading.
Therefore, need improve existing reset mode at problems of the prior art.
Summary of the invention
Purpose of the present invention is exactly the separated base station system at chain networking, the method that provides a kind of far-end radio frequency unit business can distinguish different scenes and reset separately with communication, compatible traditional simultaneously RRU repositioning method, reduce of the influence of RRU reset operation as far as possible to RRU own service and communication, with and the RRU of cascade and BBU between the influence of communication, but also provide the new hardware debug and the means of positioning problems.
For achieving the above object, the present invention adopts following technical scheme.
The method of chain type far-end radio frequency unit business of the present invention and communication separable reset, it carries out according to following steps:
The fault detection system of A, base station is monitored the running status of remote radio unit (RRU) RRU; Only there is traffic failure as if this remote radio unit (RRU) RRU, then execution in step B; Only there is communication failure as if this remote radio unit (RRU) RRU, then execution in step C; Do not belong to above-mentioned two kinds of situations, then execution in step D if judge; The process that the fault detection system of base station is monitored the running status of remote radio unit (RRU) may further comprise the steps: the monitoring module of A1, remote radio unit (RRU) detects the state of remote radio unit (RRU) periodically and reports to Base Band Unit; A2, Base Band Unit active cycle remove to inquire about the state of remote radio unit (RRU), and remote radio unit (RRU) feeds back to Base Band Unit after receiving query messages;
The Base Band Unit of B, described base station issues the order of the CPU that resets separately to described remote radio unit (RRU); The remote radio unit (RRU) of described base station is according to the described order CPU of described remote radio unit (RRU) RRU that resets separately, and carries out the initialization cpu resource;
The Base Band Unit of C, described base station issues the order of the described communication module that resets separately to described remote radio unit (RRU); Described remote radio unit (RRU) resets separately according to described order and is positioned on the described remote radio unit (RRU) RRU hardware logic and communication module that be used for carrying out with Base Band Unit communication, and load logic;
D, base station software layer are initiatively initiated reset command, the whole remote radio unit (RRU) that resets, and it specifically can write the operation that the register of described remote radio unit (RRU) RRU is carried out the whole remote radio unit (RRU) RRU that resets by calling plate support package BSP function.
Wherein, further comprising the steps of among the described step C: whether before load logic, it is consistent with the logical versions that will load to carry out the existing logic of verification, if inconsistent, download logic more again and upgrades operation.
Wherein, described traffic failure comprises following situation: configuration change, Address requests be overtime, detect endless loop or the like.Described communication failure comprises following situation: often irregular message, the BBU of losing of the communication of remote radio unit (RRU) RRU and Base Band Unit BBU do not receive handshake information of RRU and following all RRU that hang thereof or the like.
Wherein, the remote radio unit (RRU) of base station described in the described step B is according to reset the separately CPU of described remote radio unit (RRU) of described order, and carry out the initialization cpu resource, may further comprise the steps: the hardware logic of described remote radio unit (RRU) RRU is resolved after receiving described order, and is carried out the operation of the CPU that resets separately by hardware logic according to described order.Among the described step B, if after carrying out once the operation of the CPU that resets separately of described step B2, can not eliminate traffic failure, then carry out the operation of this CPU that resets separately once more, so reset operation is carried out in circulation, when reaching default cycle-index, then carries out described step D.
Wherein, remote radio unit (RRU) described in the described step C resets separately according to described order and is positioned on the described remote radio unit (RRU) hardware logic and communication module that be used for carrying out with Base Band Unit communication, and load logic, may further comprise the steps: the hardware logic of described remote radio unit (RRU) RRU is resolved after receiving described order, and is carried out the operation of the communication module that resets separately by hardware logic according to described order.Among the described step C, if after carrying out once the operation of the communication module that resets separately of described step C2, can not eliminate communication failure, then carry out the operation of this communication module that resets separately once more, so reset operation is carried out in circulation, when reaching default cycle-index, then carries out described step D.
Adopt said method of the present invention, in compatible conventional reset method, can reduce the influence of the operation of the whole RRU that resets effectively to RRU own service and communication, reduce the influence of communication between the RRU of its cascade and the BBU simultaneously, not only improve robustness, maintainability, the compatibility and stable of base station system, and the new hardware debug and the means of positioning problems are provided.
Description of drawings
Fig. 1 is the RRU chain networking topological structure schematic diagram of split base station system;
Fig. 2 is the flow chart of the inventive method.
Embodiment
Below will describe each preferred embodiment of the present invention in detail.
As depicted in figs. 1 and 2, method of the present invention is applied to separated base station system, and this system adopts chain-type topological structure shown in Figure 1 usually.Each base station system all is equipped with separately independently fault detect and reports system, the unified state information that receives and analyze from each subordinate unit of BBU.The following several types of the fault of RRU: traffic failure, communication failure, other fault, wherein, traffic failure comprises that configuration change, Address requests are overtime, detects situations such as endless loop; Communication failure comprises the frequent irregular situations such as handshake information that message, BBU do not receive RRU and following all RRU that hang thereof of losing of the communication of remote radio unit (RRU) RRU and Base Band Unit BBU; Other faults comprise logical update or hardware problem etc.Find that traffic failure appears in RRU when state at cycle detection RRU of the monitoring module of RRU, then the RRU hardware logic can report fault-signal, and BBU judges the fault-signal that receives, thereby confirms fault type.The monitoring module of BBU sends the communication detection signal to RRU periodically, and RRU can feed back to BBU after receiving detection signal, if BBU does not receive the signal of RRU feedback, represents that then communication failure appears in RRU.Certainly, failure judgment and detection are not limited to above-mentioned dual mode.
The present invention is according to the type of above-mentioned fault, and business and the communication to RRU resets separately at different scenes.Breaking down with RRU1 below in conjunction with Fig. 2 is example, specifies method of the present invention, and its process is as follows:
Step 201: the fault detection system of base station is monitored the running status of remote radio unit (RRU) RRU1; If only there is traffic failure in RRU1, the hardware logic of RRU1 is to BBU sending service failure message, and then execution in step 202; If only there is communication failure in RRU1, then execution in step 203; If judge not belong to above-mentioned two kinds of situations, then execution in step 204;
Step 202: the CPU of the RRU1 that resets separately also carries out the initialization cpu resource.At first, Base Band Unit BBU issues the order of the CPU that resets separately to RRU1; Then, the hardware logic of RRU1 is resolved after receiving this order, and is carried out the operation of the CPU that resets separately by hardware logic according to this order.
If carry out above-mentionedly once separately during reset operation, fail to deal with problems, then carry out the operation of the CPU that resets separately once more, so circulation is carried out, when reaching default cycle-index, the then operation of the whole RRU1 that resets of execution in step 204.Do like this is in order to attempt repeatedly resetting separately CPU, reduce the number of times that whole RRU1 resets as far as possible, thereby reduce of the influence of the chain RRU reset operation of separated base station system, reduce the influence of communication between the RRU of its cascade and the BBU simultaneously RRU own service and communication.In this process, though the Business Processing of RRU is interrupted, its hardware logic module of bearing RRU and BBU communication task is still effective, so, can't have influence on the RRU of cascade under it and the communication between the BBU.
Step 203: bear the communication module with the BBU communication on the RRU1 hardware logic that resets separately, and load logic.At first, Base Band Unit BBU issues the order of the described communication module that resets separately to RRU1; Then, the hardware logic of RRU1 is resolved after receiving this order, and is carried out the operation of the communication module that resets separately by hardware logic according to this order.Whether before above-mentioned load logic, it is consistent with the logical versions that will load to carry out the existing logic of verification, if inconsistent, downloads the logical renewal operation more again, if unanimity then do not upgrade, to reduce the influence of logic down operation to system.
Can to the communication module of the carrying out communication function reset operation separately that carries out repeatedly capable of circulation, still can not eliminate fault if repeatedly reset separately, then the operation of the whole RRU1 that resets of execution in step 204 with step 202 in the said process.Its effect also is in order to attempt repeatedly resetting separately hardware logic, reduce the number of times of the whole RRU1 that resets through amount, thereby reduce of the influence of the chain RRU reset operation of separated base station system, reduce the influence of communication between the RRU of its cascade and the BBU simultaneously RRU own service and communication.In said process, lost efficacy though bear the module of RRU1 and BBU communication task on the hardware logic of this RRU1, the Business Processing of himself is unaffected.
Step 204: can not eliminate unusually as if step 202, step 203, or have problem such as logical update that step 202,203 can't resolve, when hardware problem etc. occurring, then BBU sends the message whole RRU1 that resets to RRU1, RRU1 receives and calls the BSP function after the message and write the register of RRU1 reset RRU1 and load logic, thereby realizes the operation of traditional whole RRU1 that resets.Whether before load logic, it is consistent with the logical versions that will load to carry out the existing logic of verification, if inconsistently download the logical renewal operation more again, if unanimity then do not upgrade, to reduce operation that logic the downloads influence to subordinate.If adopt the method for traditional whole RRU1 that resets, and attempt repeatedly still can not dealing with problems, then can adopt the mode that prolongs the reset cycle to solve problem, the mode of this prolongation reset cycle belongs to technological means commonly used in the prior art, and the reset cycle of being mentioned is meant the blanking time of continuous transmission reset signal here.
When carrying out reset operation in the above-mentioned steps 202,203,204, all be to send message to RRU by BBU, RRU carries out reset operation by hardware logic after receiving message, the hardware logic of RRU provides different reseting interfaces, as long as call different interfaces after RRU receives reset command and resolves; If communication failure, the message of BBU sends RRU to by the physical circuit layer, carries out corresponding operation then.All adopted circulation to carry out the mode of reset operation in the above-mentioned steps 202,203,204; it specifically can followingly be realized; when RRU1 receives reset command; open a counter; can not eliminate unusual if reset; then counter adds one, and so circulation is up to recovering normal or Counter Value surpasses threshold values (just above-mentioned default cycle-index).If Counter Value does not surpass threshold values, then fault is eliminated in expression, recovers normal.If Counter Value surpasses threshold values, and does not eliminate fault yet, then have two kinds of situations: one if this circulation belongs to the circulation in step 202 or 203, then turns to execution in step 204; Its two, if this circulation belongs to circulation in the step 204, then prolong the reset cycle, carry out according to a conventional method.And the like, other RRU occur then can carrying out the operation same as RRU1 unusually; If a plurality of RRU break down, then handle and the immediate RRU of BBU earlier, and then handle the RRU of next stage.
In sum, the present invention is in compatible conventional reset method, can reduce of the influence of the chain RRU reset operation of separated base station system by minimally to RRU own service and communication, reduce the influence of communication between the RRU of its cascade and the BBU simultaneously, not only improve robustness, maintainability, the compatibility and stable of system, but also new hardware debug means are provided.
Illustrating of above-mentioned each concrete steps is comparatively concrete, can not therefore think the restriction to scope of patent protection of the present invention, and scope of patent protection of the present invention should be as the criterion with claims.
Claims (9)
1. the method for chain type far-end radio frequency unit business and communication separable reset, it is applied to it is characterized in that in the separated base station system that described method is carried out according to following steps:
The fault detection system of A, base station is monitored the running status of remote radio unit (RRU); Only there is traffic failure as if this remote radio unit (RRU), then execution in step B; Only there is communication failure as if this remote radio unit (RRU), then execution in step C; Do not belong to above-mentioned two kinds of situations, then execution in step D if judge; The process that the fault detection system of base station is monitored the running status of remote radio unit (RRU) may further comprise the steps: the monitoring module of A1, remote radio unit (RRU) detects the state of remote radio unit (RRU) periodically and reports to Base Band Unit; A2, Base Band Unit active cycle remove to inquire about the state of remote radio unit (RRU), and remote radio unit (RRU) feeds back to Base Band Unit after receiving query messages;
The Base Band Unit of B, described base station issues the order of the CPU that resets separately to described remote radio unit (RRU); The remote radio unit (RRU) of described base station is according to the described order CPU of described remote radio unit (RRU) that resets separately, and carries out the initialization cpu resource;
The Base Band Unit of C, described base station issues the order of the communication module that resets separately to described remote radio unit (RRU); Described remote radio unit (RRU) resets separately according to described order and is positioned on the described remote radio unit (RRU) hardware logic and communication module that be used for carrying out with Base Band Unit communication, and load logic;
Reset command is initiatively initiated in D, base station, and whole remote radio unit (RRU) resets.
2. method according to claim 1 is characterized in that, and is further comprising the steps of among the described step C:
Whether before load logic, it is consistent with the logical versions that will load to carry out the existing logic of verification, if inconsistent, download logic more again and upgrades operation.
3. method according to claim 1 is characterized in that, described traffic failure comprises following situation: configuration change, Address requests be overtime, detect endless loop.
4. method according to claim 1, it is characterized in that described communication failure comprises following situation: the frequent irregular handshake information that message, Base Band Unit are not received remote radio unit (RRU) and following all remote radio unit (RRU)s of hanging thereof of losing of the communication of remote radio unit (RRU) and Base Band Unit.
5. method according to claim 1 is characterized in that, the remote radio unit (RRU) of base station described in the described step B is according to the described order CPU of described remote radio unit (RRU) that resets separately, and carries out the initialization cpu resource, may further comprise the steps:
The hardware logic of described remote radio unit (RRU) is resolved after receiving described order, and is carried out the operation of the CPU that resets separately by hardware logic according to described order.
6. method according to claim 5 is characterized in that, if after carrying out the operation of the CPU that once resets separately, can not eliminate traffic failure, then carry out the operation of this CPU that resets separately once more, so reset operation is carried out in circulation, when reaching default cycle-index, then carry out described step D.
7. method according to claim 1, it is characterized in that, remote radio unit (RRU) described in the described step C resets separately according to described order and is positioned on the described remote radio unit (RRU) hardware logic and communication module that be used for carrying out with Base Band Unit communication, and load logic, may further comprise the steps:
The hardware logic of described remote radio unit (RRU) is resolved after receiving described order, and is carried out the operation of the communication module that resets separately by hardware logic according to described order.
8. method according to claim 7, it is characterized in that, if after carrying out the operation of the communication module that once resets separately, can not eliminate communication failure, then carry out the operation of this communication module that resets separately once more, so reset operation is carried out in circulation, when reaching default cycle-index, then carries out described step D.
9. method according to claim 1 is characterized in that, among the described step D, writes the register of described remote radio unit (RRU) by calling plate support package BSP function, carries out the operation of the whole remote radio unit (RRU) that resets.
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101854631B (en) * | 2009-03-31 | 2012-12-26 | 中国移动通信集团公司 | Method for realizing wireless signal coverage and base station system |
| CN102136868B (en) * | 2011-05-09 | 2015-02-25 | 广州茂腾信息科技有限公司 | Baseband unit (BBU)-radio remote unit (RRU) failure judgment method for telecom base station |
| WO2012171204A1 (en) * | 2011-06-16 | 2012-12-20 | 华为技术有限公司 | Method and apparatus for detecting faults of base station |
| CN102308264A (en) * | 2011-06-27 | 2012-01-04 | 华为技术有限公司 | Resetting method of serial cascade radio frequency device, device and system |
| CN102355685B (en) * | 2011-08-26 | 2014-07-02 | 新邮通信设备有限公司 | RRU (Radio Remote Unit) resetting method used under chain-type networking and method for accessing RRUs to BBU (Base Band Unit) |
| CN102316503B (en) * | 2011-09-30 | 2014-09-10 | 大唐移动通信设备有限公司 | Fault processing method for remote radio unit (RRU) and device |
| CN102970699B (en) * | 2012-11-09 | 2016-08-03 | 大唐移动通信设备有限公司 | A kind of fault handling method and distributed base station |
| CN106341355A (en) * | 2015-07-09 | 2017-01-18 | 深圳市中兴微电子技术有限公司 | Digital intermediate frequency processing system detection method and device |
| CN108121571A (en) * | 2017-12-21 | 2018-06-05 | 郑州云海信息技术有限公司 | A kind of individual reset design and realization based on system hardware module |
| CN114448528B (en) * | 2021-12-31 | 2023-06-20 | 华为技术有限公司 | Method and device for determining fault cause |
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