CN103326771B - RRU optical fiber link management method, device and remote radio unit system - Google Patents
RRU optical fiber link management method, device and remote radio unit system Download PDFInfo
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- 238000007726 management method Methods 0.000 title claims abstract description 69
- 239000013307 optical fiber Substances 0.000 title claims abstract description 46
- 238000004891 communication Methods 0.000 claims abstract description 44
- 238000000034 method Methods 0.000 claims abstract description 44
- 230000008569 process Effects 0.000 claims abstract description 43
- 238000012360 testing method Methods 0.000 claims abstract description 33
- 230000005540 biological transmission Effects 0.000 claims abstract description 23
- 230000008859 change Effects 0.000 claims abstract description 14
- 238000005259 measurement Methods 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 claims abstract description 4
- 230000001360 synchronised effect Effects 0.000 claims description 16
- 238000001514 detection method Methods 0.000 claims description 14
- 238000011897 real-time detection Methods 0.000 claims description 7
- 239000000835 fiber Substances 0.000 claims description 6
- 238000012216 screening Methods 0.000 claims 1
- 238000012546 transfer Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000007246 mechanism Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
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Abstract
The invention provides a kind of RRU optical fiber link management method, comprise link establishment phase: the CM passage filtering out transmission CM data, according to the RRUID that CM Air conduct measurement goes out, IP address is obtained from BBU according to RRUID, set up the communication link between BBU according to IP address, start heartbeat packet testing process; In the process that RRU normally runs, detect the state of RRUID, CM passage and communication link respectively; If when RRUID, CM passage and/or the change of communication link generation state, passage bridge and/or link disconnect, stop heartbeat packet testing process, and re-establish corresponding logical links.The present invention also provides a kind of RRU optical fiber link management devices and remote radio unit system, by technology of the present invention, when logic state generation state variation, stop heartbeat packet testing process, rebuild corresponding logical links, reduce the frequency of communication disruption, improve communication quality.
Description
Technical field
The present invention relates to Remote Radio Unit technology, particularly relate to a kind of RRU optical fiber link management method, device and remote radio unit system.
Background technology
Along with the development of Wireless Telecom Equipment, in 3G and 4G technology, the data volume of distributed base station transmission is increasing, when optical module speed and performance are not improved completely, most of base station system adopts multi-channel optical fibre transmission data, so just cause BBU (BaseBandUnit, baseband processing unit) and RRU (RadioRemoteUnit, Remote Radio Unit) between link management become more complicated, Consideration is needed also to increase, therefore need to carry out supervisory communications link in the RRU end a set of rational mechanism of formation and method, ensure the operation of RRU device normal reliable.
At present, in RRU optical fiber link administrative skill, whether a kind of heartbeat mechanism is normally set between BBU and RRU bipartite mutual normal to judge, after RRU cannot receive the heartbeat packet of BBU, RRU is autoboot at once, owing to being the Rule of judgment according to whether receiving heartbeat packet and restarting as unique RRU device, when in the normal situation of physical link, the change of logic state also can cause RRU device to reset, and adds the frequency of communication disruption, affects communication quality.
Summary of the invention
Based on this, be necessary that the change of logic state also can cause RRU device to reset, and adds the frequency of communication disruption for working as in the normal situation of physical link, affect communication quality problem, a kind of RRU optical fiber link management method, device and remote radio unit system are provided.
A kind of RRU optical fiber link management method, comprises the steps:
Filter out the CM passage of transmission CM control data;
RRUID is gone out according to described CM Air conduct measurement;
IP address is obtained from BBU according to described RRUID;
Set up the communication link between BBU according to described IP address, start heartbeat packet testing process;
In the process that RRU normally runs, detect the state of described RRUID, CM passage and communication link respectively;
If when described RRUID, CM passage and/or the change of communication link generation state, passage bridge and/or link disconnect, stop heartbeat packet testing process, and re-establish corresponding logical links.
A kind of RRU optical fiber link management devices, comprising:
CM channel screen module, for filtering out the CM passage of transmission CM data;
RRUID state detection module, for going out RRUID according to described CM Air conduct measurement;
IP address acquisition module, for obtaining IP address according to described RRUID from BBU;
Communication connection module, for setting up the communication link between BBU according to described IP address, starts heartbeat packet testing process;
State detection module, in the process normally run at RRU, detects the state of described RRUID, CM passage and communication link respectively;
Link rc-cstablishmcnt module, if when disconnecting for described RRUID, CM passage and/or the change of communication link generation state, passage bridge and/or link, stop heartbeat packet testing process, and re-establish corresponding logical links.
A kind of remote radio unit system, comprises RRU optical fiber link management devices described above.
Above-mentioned RRU optical fiber link management method, device and remote radio unit system, the Logical Link Management between BBU is established at RRU, when the logic state generation state variation such as switching of the connection of the communication link of link, RRUID state and CM passage, then stop heartbeat packet testing process, and the logical links re-established between BBU, in the normal situation of physical link, do not carry out RRU device to restart because of the change of logical link state, reduce the frequency of communication disruption, improve communication quality.
Accompanying drawing explanation
Fig. 1 is the flow chart of the embodiment of RRU optical fiber link management method of the present invention;
Fig. 2 is the flow chart of a preferred embodiment of RRU optical fiber link management method;
Fig. 3 is the structural representation of the embodiment of RRU optical fiber link management devices of the present invention.
Embodiment
Be described in detail below in conjunction with the embodiment of accompanying drawing to RRU optical fiber link management method.
As shown in Figure 1, Fig. 1 is the flow chart of an embodiment of RRU optical fiber link management method of the present invention, comprises the steps:
S101, filter out transmission CM (Controlandmanagement, control and management) data CM passage;
S102, go out RRUID (RadioRemoteUnitIdentity, Remote Radio Unit Identity Code) according to described CM Air conduct measurement;
S103, obtain IP (InternetProtocol, internet communication protocol) address according to described RRUID from BBU;
S104, set up the communication link between BBU according to described IP address, start heartbeat packet testing process;
In S105, the process normally run at RRU, detect the state of described RRUID, CM passage and communication link respectively;
If when described RRUID, CM passage of S106 and/or the change of communication link generation state, passage bridge and/or link disconnect, stop heartbeat packet testing process, and re-establish corresponding logical links.
In order to more clear RRU optical fiber link management method of the present invention, be described in further detail below in conjunction with preferred embodiment.
As shown in Figure 2, Fig. 2 is the flow chart of a preferred embodiment of RRU optical fiber link management method of the present invention, mainly comprises the steps:
S201, in Preset Time continue check CPRI (CommonPublicRadioInterface, common public radio interface) link;
S202, judge whether described CPRI link reaches synchronous in Preset Time, if so, then determine that CPRI link is in synchronous regime, then proceed to step S203, if not, then control RRU device and restart;
The control word that in S203, detection fiber link, BBU issues, described control word is differentiated, filters out the CM passage of transmission CM data, namely by the differentiation to the data content transmitted in optical fiber, determine CM data transmit on which road optical fiber, then proceed to step S204;
S204, optical fiber according to current transmission CM data, continue to check RRUID state in Preset Time;
S205, judge whether described RRUID state keeps stable in Preset Time, if so, then obtain RRUID when being in stable state, then proceed to step S206, if not, then control RRU device and restart;
S206, by DHCP (DynamicHostConfigurationProtocol, DynamicHost arranges agreement) mode to BBU send RRU address, RRUID information, namely BBU is that RRU distributes corresponding IP address according to described RRU address, RRUID information, then RRU receives the IP address that this BBU distributes, or obtained the IP address of BBU distribution by CPRI bottom link control word, then proceed to step S207;
S207, carry out TCP (TransmissionControlProtocol, transmission control protocol)/UDP (UserDatagramProtocol, User Datagram Protocol) according to described IP address and BBU and connect;
S208, judge whether connect with BBU in Preset Time, if so, then proceed to step S209, if not, then control RRU device and restart;
S209, carry out interacting message and confirm the information of the other side with BBU;
S210, judge whether both sides successfully confirm the information of the other side in Preset Time, if so, then proceed to step S211, if not, then control RRU device and restart;
S211, startup heartbeat packet testing process, then enter the viewed in real time stage.
As an embodiment, Preset Time mentioned in above-mentioned steps is 10 minutes.
Above-mentioned steps S201 ~ S211 is link establishment phase, institute's all demand fulfillment condition in steps, if RRU device is restarted, then restarts to perform from step S201.
The synchronous regime of S212, in real time detection fiber CPRI link;
S213, judge CPRI link whether lock-out, if so, then control RRU device and restart, if not, enter step S214, S217 and/or S220; Because CPRI link occurs extremely during lock-out, RRU will be caused to can not receive heartbeat packet, now should control RRU device and restart.
The connection status of S214, in real time detection TCP/UDP;
S215, judge whether TCP/UDP disconnects, and if so, proceeds to step S216;
S216, stopping heartbeat packet testing process, return and perform step S207, namely re-establish the communication link between BBU according to IP address;
The state of S217, in real time detection RRUID;
S218, judge whether RRUID changes, and if so, proceeds to step S219;
S219, stopping heartbeat packet testing process, return and perform step S204, again detect RRUID when being in stable state;
The state of S220, in real time detection CM passage;
S221, judge whether CM passage switches, and if so, proceeds to step S222;
S222, stopping heartbeat packet testing process, return and perform step S203, again filter out the CM passage of transmission CM data;
Stop heartbeat packet testing process in step S216, S219 and S222, re-establish in the process of logical links, simultaneously the synchronous regime of real-time detection fiber CPRI link, if CPRI link lock-out, then control RRU device and restart.
Above-mentioned steps S212 ~ S222 is the viewed in real time stage, in the process that RRU normally runs, when detecting that transmission link, RRUID and CM passage produce the state variation of logical links, first stop heartbeat packet testing process, re-establish the logical links between BBU, to avoid equipment to restart at once, when avoiding RRU device logical links occurs unstable physical link is normal, carry out too much restarting and causing communication disruption.
Be described in detail below in conjunction with the embodiment of accompanying drawing to device corresponding to RRU optical fiber link management method of the present invention.
As shown in Figure 3, Fig. 3 is the structural representation of an embodiment of RRU optical fiber link management devices of the present invention, comprising:
CM channel screen module, for filtering out the CM passage of transmission CM data;
RRUID state detection module, for going out RRUID according to described CM Air conduct measurement;
IP address acquisition module, for obtaining IP address according to described RRUID from BBU;
Communication connection module, for setting up the communication link between BBU according to described IP address, starts heartbeat packet testing process;
State detection module, in the process normally run at RRU, detects the state of described RRUID, CM passage and communication link respectively;
Link rc-cstablishmcnt module, if when disconnecting for described RRUID, CM passage and/or the change of communication link generation state, passage bridge and/or link, stop heartbeat packet testing process, and re-establish corresponding logical links.
In order to more clear RRU optical fiber link management devices of the present invention, be described in further detail below by a preferred embodiment.
Preferably, RRU optical fiber link management devices of the present invention is also included in the CPRI link adjusting module before described CM channel screen module, CPRI link is checked for continuing in Preset Time, judge whether described CPRI link reaches synchronous in Preset Time, if, then determine that CPRI link is in synchronous regime, if not, then control RRU device and restart.
Preferably, described state detection module is also for the synchronous regime of real-time detection fiber CPRI link, if CPRI link lock-out, then controls RRU device and restarts.
Particularly, CM channel screen module is used for detecting the data in optical fiber link, differentiates the control word that BBU issues, determines according to described control word the CM passage transmitting CM data;
Particularly, RRUID state detection module is used for, according to the CM passage of current transmission CM data, continuing to check RRUID state, judge whether described RRUID state keeps stable in Preset Time, if so, then determine RRUID when being in stable state, if not, then control RRU device to restart;
Particularly, IP address acquisition module is used for sending RRU address, RUID information to BBU by DHCP mode, receives the IP address that BBU distributes;
Particularly, communication connection module is used for carrying out TCP/UDP according to described IP address with BBU and is connected, if cannot connect at Preset Time and BBU, then control RRU device to restart, if successfully connect with BBU, then carry out interacting message with BBU and confirm the information of the other side, if both sides confirm the information failure of the other side in Preset Time, then control RRU device to restart, if successfully confirm the information of the other side, then proceed to and start heartbeat packet testing process.
Preferably, described Preset Time is 10 minutes.
Particularly, state detection module is for detecting the state of the connection status of TCP/UDP, the state detecting RRUID and/or detection CM passage.
Particularly, disconnect if link rc-cstablishmcnt module is used for TCP/UDP, then stop heartbeat packet testing process, re-establish the connection with the TCP/UDP of BBU according to current IP address; If RRUID changes, then stop heartbeat packet testing process, switch if then again detect RRUID and/or CM passage according to current CM passage, then stop heartbeat packet testing process, then again filter out the CM passage of current transmission CM data.
Below the embodiment of remote radio unit system of the present invention is described in detail.
A kind of remote radio unit system, comprises the RRU optical fiber link management devices as above-described embodiment; Remote radio unit system of the present invention, when the logic state generation state variation such as switching of the connection of the communication link of link, RRUID state and CM passage, then RRU stops heartbeat packet testing process, and the logical links re-established between RRU and BBU, in the normal situation of physical link, do not carry out RRU device to restart because of the change of logical link state, effectively can reduce the frequency of communication disruption, and improve communication quality.
The management of RRU optical fiber link is divided into two stages by the present invention, multistep control flow and abnormality processing flow process are set, effective management has been carried out to RRU optical fiber link, substantially envisage the CPRI synchronous regime of optical fiber, the switching state of optical fiber CM passage, the state variation factor of the logical links such as RRUID stable state and TCP/UDP Link State, guarantee that link correctly runs reliably, when solving two-way/multi-channel optical fibre transmission data, complicated RRU link management problem, has following remarkable result:
(1) correctly can obtain RRUID according to the transmission optical fiber of current C M data, obtain correct IP address, carry out link establishment;
(2) when physical link normal (namely CPRI is synchronously normal), RRU can not be caused because of the change of other interrelated logic state (RRUID change, CM passage bridge, TCP/UDP disconnect suddenly) to reset and to restart;
(3) when physical link abnormal (namely CPRI is asynchronous), RRU device can be restarted at once.
The present invention is applicable to the multiple connected mode between BBU and RRU, comprises cascade mode, ad hoc mode, cardioid connection mode, multi-channel optical fibre transmission mode.
Technology of the present invention has utilized C++ programming language at TDD (TimeDivisionDuplexing, time division duplex) LTE (LongTermEvolution of pattern, Long Term Evolution) system RRU in successful Application, link between management RRU and BBU that can be effective and reasonable, can accurately run through multiple test.
The above embodiment only have expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a RRU optical fiber link management method, is characterized in that, comprises the steps:
Under CPRI link is in synchronous regime, filter out the control and management CM passage of transmission control and management CM data;
RRUID is gone out according to described control and management CM Air conduct measurement;
IP address is obtained from BBU according to described RRUID;
Set up the communication link between BBU according to described IP address, start heartbeat packet testing process;
In the process that RRU normally runs, detect the state of described RRUID, control and management CM passage and communication link respectively;
If when the change of described RRUID, control and management CM passage and/or communication link generation state, passage bridge and/or link disconnect, stop heartbeat packet testing process, and re-establish corresponding logical links.
2. RRU optical fiber link management method according to claim 1, it is characterized in that, described filter out the control and management CM passage of transmission control and management CM data before also comprise: continue to check CPRI link in Preset Time, judge whether described CPRI link reaches synchronous in Preset Time, if so, then determine that CPRI link is in synchronous regime, then proceed to the step of the control and management CM passage of screening transmission control and management CM data, if not, then control RRU device to restart.
3. RRU optical fiber link management method according to claim 1, it is characterized in that, the described control and management CM passage step filtering out transmission control and management CM data specifically comprises: detect the data in optical fiber link, differentiate the control word that BBU issues, determine according to described control word the control and management CM passage transmitting control and management CM data;
Describedly go out RRUID step according to described control and management CM Air conduct measurement and specifically comprise: according to the control and management CM passage of current transfer control and management CM data, continue to check RRUID state, judge whether described RRUID state keeps stable in Preset Time, if, then determine RRUID when being in stable state, if not, then control RRU device to restart;
Described according to described RRUID from BBU obtain IP address specifically comprise: send RRU address, RUID information to BBU by DHCP mode, receive BBU distribute IP address;
Described foundation according to described IP address specifically comprises with the communication link between BBU: carry out TCP/UDP according to described IP address with BBU and be connected, if cannot connect at Preset Time and BBU, then control RRU device to restart, if successfully connect with BBU, then carry out interacting message with BBU and confirm the information of the other side, if both sides confirm the information failure of the other side in Preset Time, then control RRU device to restart, if successfully confirm the information of the other side, then proceed to and start heartbeat packet testing process.
4. RRU optical fiber link management method according to claim 3, it is characterized in that, described Preset Time is 10 minutes.
5. RRU optical fiber link management method according to claim 1, is characterized in that, also comprises in the described process normally run at RRU: the synchronous regime of detection fiber CPRI link in real time, if CPRI link lock-out, then controls RRU device and restarts.
6. RRU optical fiber link management method according to claim 1, is characterized in that, the described state detecting described RRUID, control and management CM passage and communication link respectively; If when described RRUID, control and management CM passage and/or communication link generation state change, passage bridge and/or link disconnect, stop heartbeat packet testing process, and re-establish corresponding logical links step and specifically comprise:
Detect the connection status of TCP/UDP, if TCP/UDP disconnects, then stop heartbeat packet testing process, re-establish the connection with the TCP/UDP of BBU according to current IP address;
And/or
Detect the state of RRUID, if RRUID changes, then stop heartbeat packet testing process, then again detect RRUID according to current control and management CM passage;
And/or
The state of detection control and management CM passage, if control and management CM passage switches, then stops heartbeat packet testing process, then again filters out the control and management CM passage of current transmission control and management CM data.
7. a RRU optical fiber link management devices, is characterized in that, comprising:
Control and management CM channel screen module, under being in synchronous regime at CPRI link, filters out the control and management CM passage of transmission control and management CM data;
RRUID state detection module, for going out RRUID according to described control and management CM Air conduct measurement;
IP address acquisition module, for obtaining IP address according to described RRUID from BBU;
Communication connection module, for setting up the communication link between BBU according to described IP address, starts heartbeat packet testing process;
State detection module, in the process normally run at RRU, detects the state of described RRUID, control and management CM passage and communication link respectively;
Link rc-cstablishmcnt module, if when disconnecting for the change of described RRUID, control and management CM passage and/or communication link generation state, passage bridge and/or link, stop heartbeat packet testing process, and re-establish corresponding logical links.
8. RRU optical fiber link management devices according to claim 7, it is characterized in that, also be included in the CPRI link adjusting module before described control and management CM channel screen module, CPRI link is checked for continuing in Preset Time, judge whether described CPRI link reaches synchronous in Preset Time, if so, then determine that CPRI link is in synchronous regime, if not, then control RRU device to restart.
9. RRU optical fiber link management devices according to claim 7, is characterized in that, described state detection module is also for the synchronous regime of real-time detection fiber CPRI link, if CPRI link lock-out, then controls RRU device and restarts.
10. a remote radio unit system, is characterized in that, comprises the RRU optical fiber link management devices as described in any one of claim 7 to 9.
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| CN105138411A (en) * | 2015-07-29 | 2015-12-09 | 深圳怡化电脑股份有限公司 | Fault tolerance method for financial self-service device |
| CN106254179B (en) * | 2016-08-05 | 2020-07-24 | 深圳先进技术研究院 | Heartbeat packet asynchronous control method and device |
| WO2020000124A1 (en) * | 2018-06-25 | 2020-01-02 | 深圳市大疆创新科技有限公司 | Method for monitoring connection state of laser radar, laser radar, and master computer |
| US20220110017A1 (en) * | 2019-01-21 | 2022-04-07 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and Apparatus for Transmitting Radio Data Over a Fronthaul Network |
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| EP2197221A1 (en) * | 2007-09-21 | 2010-06-16 | ZTE Corporation | An apparatus for realizing distributed wireless cell and communication method thereof |
| CN102111768A (en) * | 2009-12-29 | 2011-06-29 | 中兴通讯股份有限公司 | Multi-frequency band common networking method and device |
| CN102111196A (en) * | 2010-12-30 | 2011-06-29 | 中兴通讯股份有限公司 | Data sending method and device as well as remote radio unit (RRU) |
| CN102316503A (en) * | 2011-09-30 | 2012-01-11 | 大唐移动通信设备有限公司 | Fault processing method for remote radio unit (RRU) and device |
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| EP2197221A1 (en) * | 2007-09-21 | 2010-06-16 | ZTE Corporation | An apparatus for realizing distributed wireless cell and communication method thereof |
| CN101702822A (en) * | 2009-10-23 | 2010-05-05 | 中兴通讯股份有限公司 | Method for realizing carrier control and system |
| CN102111768A (en) * | 2009-12-29 | 2011-06-29 | 中兴通讯股份有限公司 | Multi-frequency band common networking method and device |
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| CN102316503A (en) * | 2011-09-30 | 2012-01-11 | 大唐移动通信设备有限公司 | Fault processing method for remote radio unit (RRU) and device |
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Address after: 510663 Shenzhou Road 10, Science City, Guangdong, Guangzhou Patentee after: Jingxin Network System Co.,Ltd. Address before: 510663 Shenzhou Road 10, Science City, Guangdong, Guangzhou Patentee before: COMBA TELECOM SYSTEMS (CHINA) Ltd. |
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