CN103124441B - A kind of processing method of too long link delay of satellite site and device - Google Patents
A kind of processing method of too long link delay of satellite site and device Download PDFInfo
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- CN103124441B CN103124441B CN201110371534.1A CN201110371534A CN103124441B CN 103124441 B CN103124441 B CN 103124441B CN 201110371534 A CN201110371534 A CN 201110371534A CN 103124441 B CN103124441 B CN 103124441B
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Abstract
The invention discloses a kind of processing method of too long link delay of satellite site: base station controller (BSC) judges the maximum tolerance time delay whether ABIS mouth chain-circuit time delay accesses more than a step, if exceed, then access way terminal being accessed satellite website is converted to two step accesses; The invention also discloses a kind of processing unit of too long link delay of satellite site, by the present invention, solve the problem that too long link delay of satellite site causes Packet Service normally to carry out.
Description
Technical field
The present invention relates to the communications field, refer to a kind of processing method and device of too long link delay of satellite site especially.
Background technology
In the base station in some isolated island or ecological depopulated zone, often because of geographical environment limit or manpower, material resources and financial resources cost limit E1 line (E1transmissionline), netting twine or the optical fiber that cannot configure required for transmission, in this case, generally can rent the transmission of part satellite link and carry out alternative wire transmission.The advantage of satellite link, namely networking is convenient, with low cost, but shortcoming is also relatively obvious, and namely propagation delay time is longer, and this can bring adverse influence to Packet Service.
At existing global system for mobile communications (GSM, GlobalSystemofMobilecommunication) in technology, the two-way time delay in standard perigee of ABIS mouth (ABIS mouth is the communication interface between base station) satellite low orbit link is 279ms, the two-way time delay in high rail satellite perigee is 220ms, affix base station sub-system (BSS, BaseStationSubsystem) time delay of internal system, actual overall delay is within the scope of 360ms-500ms.And in actual network environment, there is the situation of secondary or repeatedly satellite transmission, i.e. base transceiver station (BTS, BaseTransceiverStation) through passing of satelline router, the networking mode of base station controller (BSC, BaseStationController) is excessively arrived again through satellite.The networking mode of secondary relaying or more, significantly adds ABIS mouth chain-circuit time delay, if time delay is long, probably causes the abnormal release of Packet Service cannot normally carry out even completely.
Specify according to agreement: when mobile terminal sends first wireless spread-spectrum technology or medium access control (RLC/MAC, RadioLinkControl/MediumAccessControl) block, the N3104 of mobile terminal starts counting.Terminal often sends a radio block, and N3104 increase once counts, in N3104_MAX number, confiscate PACKETUPLINKACK/NACK, then a step Conflict solving failure, access failure.Wherein N3104_MAX=3* (BS_CV_MAX+3) * numberofuplinktimeslotsassigned.
BS_CV_MAX maximum is 15, and for most of mobile terminal, under a step access, BSC generally distributes a up channel, and N3104_MAX maximum is 54 blocks.That is, if mobile terminal carries out a step access, if ABIS mouth chain-circuit time delay more than 54 RLC/MAC blocks time (time of a block is 20ms), namely more than 54*20=1080ms (this time delay comprises the time delay of Abis mouth and um mouth), so terminal just normally cannot carry out Packet Service.
Summary of the invention
In view of this, main purpose of the present invention is the processing method and the device that provide a kind of too long link delay of satellite site, and the terminal caused to solve too long link delay of satellite site normally cannot carry out the problem of Packet Service.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention provides a kind of processing method of too long link delay of satellite site, the method comprises:
Base station controller (BSC) judges the maximum tolerance time delay whether ABIS mouth chain-circuit time delay accesses more than a step, if exceed, then access way terminal being accessed satellite website is converted to two steps accesses.
The maximum tolerance time delay of a described step access is N3104_MAX*20ms or N3104_MAX*20ms-2*Tm, and described Tm is the One Way Delay of Um mouth.
The time delay during maximum tolerance that described ABIS mouth chain-circuit time delay accesses more than a step, described ABIS mouth chain-circuit time delay also meets: the waiting-timeout time being less than the abnormal release of TBF.
Before BSC judges the maximum tolerance time delay of ABIS mouth chain-circuit time delay whether more than a step access, the method also comprises: when BSC receives the channel request message of self terminal, determines that website that terminal accesses is satellite website and the access way that terminal accesses described satellite website is a step access.
Access way terminal being accessed satellite website is converted to two step accesses, is specially:
The access way flag of the described satellite website that terminal accesses by BSC resets to two step access waies.
Present invention also offers a kind of processing unit of too long link delay of satellite site, comprising: link detection module and Configuration Manager, wherein:
Described link detection module, for judging the maximum tolerance time delay whether ABIS mouth chain-circuit time delay accesses more than a step;
Described Configuration Manager, for access more than a step at described ABIS mouth chain-circuit time delay maximum tolerance time time delay, access way terminal being accessed satellite website is converted to two steps accesses.
The maximum tolerance time delay of a described step access is N3104_MAX*20ms or N3104_MAX*20ms-2*Tm, and described Tm is the One Way Delay of Um mouth.
Described link detection module, also for access more than a step at described ABIS mouth chain-circuit time delay maximum tolerance time time delay, determine that described ABIS mouth chain-circuit time delay also meets: the waiting-timeout time being less than the abnormal release of TBF.
Described link detection module, also for determining that website that terminal accesses is satellite website and the access way that terminal accesses described satellite website is a step access.
Described Configuration Manager, the access way flag also for described satellite website terminal accessed resets to two step access waies.
The processing method of too long link delay of satellite site of the present invention and device, when ABIS mouth chain-circuit time delay is long, the access way of the access satellite website of terminal is accessed by a step and is converted to two steps accesses, then the srvice instance of terminal can not be discharged by force because the restrictive condition of a step access N3104_MAX*20ms, thus solves the problem that too long link delay of satellite site causes Packet Service normally to carry out.
Accompanying drawing explanation
Fig. 1 is the process flow figure of too long link delay of satellite site of the present invention;
Fig. 2 is the processing unit structural representation of too long link delay of satellite site of the present invention.
Embodiment
For the situation of satellite station, a step access is caused to carry out if a step access link time delay is long, so can use two step access waies, based on this, the basic thought of the processing scheme of too long link delay of satellite site of the present invention is: BSC judges the maximum tolerance time delay whether ABIS mouth chain-circuit time delay accesses more than a step, if exceed, then access way terminal being accessed satellite website is converted to two step accesses.
First, when BSC receives the channel request message of self terminal, need to determine that website that terminal accesses is satellite website and the access way that terminal accesses described satellite website is a step access, and then perform time-out and judge.
The concrete mode that the access way that terminal is accessed satellite website by BSC is converted to two steps accesses is: the access way flag of satellite website terminal accessed resets to two step access waies.
Further, the One Way Delay of the maximum tolerance time delay of a step access to be N3104_MAX*20ms or N3104_MAX*20ms-2*Tm, Tm be Um mouth.Concrete; when ABIS mouth chain-circuit time delay is less than N3104_MAX*20ms; can ensure under these conditions, terminal passes through Um mouth, Abis mouth to BSC, then gets back to the two-way delay of mobile terminal from BSC within the scope of a step access guard time through Um mouth, Abis mouth.More strictly, the time of terminal access is received by the time and BTS of recording terminal Stochastic accessing, the difference of both calculating obtains the One Way Delay Tm (ms) of Um mouth, and so, the maximum tolerance time delay of a step access can be modified to: N3104_MAX*20ms-2*Tm.
In addition, the time delay during maximum tolerance that ABIS mouth chain-circuit time delay accesses more than a step, ABIS mouth chain-circuit time delay also needs satisfied following condition: the waiting-timeout time being less than the abnormal release of TBF.
Namely too long link delay of satellite site of the present invention processing scheme the ABIS mouth chain-circuit time delay T that is suitable for be: the waiting-timeout time of the abnormal release of N3104_MAX*20ms < T < TBF, or, the waiting-timeout time of the abnormal release of N3104_MAX*20ms-2*Tm < T < TBF.
Below by specific embodiment, such scheme is described.
Be illustrated in figure 1 the flow chart of the embodiment of the present invention for the processing method of too long link delay of satellite site, comprise the steps:
Step 101:BSC detects in real time and upgrades ABIS mouth chain-circuit time delay T.After BSC receives first data block that mobile terminal uploads, according to sending data block and receiving time difference of data block, calculate ABIS mouth chain-circuit time delay T, be implemented as prior art, repeat no more herein.
Wherein, terminal sends the carrier of data block is Temporary Block Flow (TBF, TemporaryBlockFlow).
Step 102:BSC receives the channel request message of self terminal.
Whether the website that the terminal that judges step 103:BSC accesses is satellite website, and if not satellite website, then carry out the GSM Packet Service handling process of follow-up acquiescence, this flow process is not the scope that the present invention discusses, and repeats no more herein; If satellite website, then perform step 104.
Step 104:BSC judges whether the access way of terminal access satellite website is a step access; If not a step access, then carry out the GSM Packet Service handling process of follow-up acquiescence; If a step access, then perform step 105.
Step 105:BSC judges that whether ABIS mouth chain-circuit time delay T is overtime, concrete, when T meets the waiting-timeout time of the abnormal release of N3104_MAX*20ms < T < TBF, or, when T meets the waiting-timeout time of N3104_MAX*20ms-2*Tm < T < TBF abnormal release, judge ABIS mouth chain-circuit time delay T time-out.If T is not overtime for ABIS mouth chain-circuit time delay, then carry out the GSM Packet Service handling process of follow-up acquiescence; If ABIS mouth chain-circuit time delay T is overtime, then carry out step 106.
In addition, why T needs to be less than the waiting-timeout time of the abnormal release of TBF, be because: if the waiting-timeout time of T release abnormal more than TBF, so the srvice instance of terminal can discharge by force, and subsequent step cannot carry out.
Step 106: due to ABIS mouth chain-circuit time delay time-out, then the access way flag of terminal place satellite website is reset to two step access waies by BSC, namely assigns monolithic in grouping is assigned immediately, terminal is by sending the access of grouping resources request method.
So, this and later the terminal access mode of this satellite website be all automatically converted to two step access modules and process.
By above-described embodiment, satellite website is in Packet Service transmitting procedure, if ABIS mouth chain-circuit time delay T is in the scope limiting delay criteria, then terminal normally can carry out Packet Service transmission.If ABIS mouth chain-circuit time delay is beyond the standard limiting time delay, then dynamic conditioning ground carries out pressure two step access appointment to from accessing terminal of satellite website.This and after, the srvice instance newly accessed terminal can not discharge by force because the restrictive condition of a step access N3104_MAX*20ms, thus solves the problem that too long link delay of satellite site causes Packet Service normally to carry out.
In order to realize said method, present invention also offers a kind of processing unit of too long link delay of satellite site, as shown in Figure 2, this device can be applied in BSC, comprising: link detection module and Configuration Manager, wherein:
Link detection module, for judging the maximum tolerance time delay whether ABIS mouth chain-circuit time delay accesses more than a step;
Configuration Manager, for access more than a step at ABIS mouth chain-circuit time delay maximum tolerance time time delay, access way terminal being accessed satellite website is converted to two steps accesses.
Wherein, the One Way Delay of the maximum tolerance time delay of a step access to be N3104_MAX*20ms or N3104_MAX*20ms-2*Tm, Tm be Um mouth.
The time delay when the maximum tolerance that ABIS mouth chain-circuit time delay accesses more than a step, link detection module is also for determining that ABIS mouth chain-circuit time delay meets: the waiting-timeout time being less than the abnormal release of TBF.
Before judgement time-out, link detection module is also for determining that website that terminal access is satellite website and the access way of terminal access satellite website is that a step accesses.
When access way terminal being accessed satellite website is converted to two steps accesses, concrete, the access way flag of satellite website terminal accessed by Configuration Manager resets to two step access waies.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.
Claims (10)
1. a processing method for too long link delay of satellite site, is characterized in that, the method comprises:
Base station controller (BSC) judges the maximum tolerance time delay whether ABIS mouth chain-circuit time delay accesses more than a step, if exceed, then access way terminal being accessed satellite website is converted to two steps accesses.
2. the processing method of too long link delay of satellite site according to claim 1, is characterized in that,
The maximum tolerance time delay of a described step access is N3104_MAX*20ms or N3104_MAX*20ms-2*Tm, and described Tm is the One Way Delay of Um mouth.
3. the processing method of too long link delay of satellite site according to claim 1 or 2, it is characterized in that, the time delay during maximum tolerance that described ABIS mouth chain-circuit time delay accesses more than a step, described ABIS mouth chain-circuit time delay also meets: the waiting-timeout time being less than the abnormal release of TBF.
4. the processing method of too long link delay of satellite site according to claim 1, it is characterized in that, before BSC judges the maximum tolerance time delay of ABIS mouth chain-circuit time delay whether more than a step access, the method also comprises: when BSC receives the channel request message of self terminal, determines that website that terminal accesses is satellite website and the access way that terminal accesses described satellite website is a step access.
5. the processing method of too long link delay of satellite site according to claim 1, is characterized in that, access way terminal being accessed satellite website is converted to two steps accesses, is specially:
The access way flag of the described satellite website that terminal accesses by BSC resets to two step access waies.
6. a processing unit for too long link delay of satellite site, is characterized in that, comprising: link detection module and Configuration Manager, wherein:
Described link detection module, for judging the maximum tolerance time delay whether ABIS mouth chain-circuit time delay accesses more than a step;
Described Configuration Manager, for access more than a step at described ABIS mouth chain-circuit time delay maximum tolerance time time delay, access way terminal being accessed satellite website is converted to two steps accesses.
7. the processing unit of too long link delay of satellite site according to claim 6, is characterized in that,
The maximum tolerance time delay of a described step access is N3104_MAX*20ms or N3104_MAX*20ms-2*Tm, and described Tm is the One Way Delay of Um mouth.
8. the processing unit of too long link delay of satellite site according to claim 6 or 7, is characterized in that,
Described link detection module, also for access more than a step at described ABIS mouth chain-circuit time delay maximum tolerance time time delay, determine that described ABIS mouth chain-circuit time delay also meets: the waiting-timeout time being less than the abnormal release of TBF.
9. the processing unit of too long link delay of satellite site according to claim 6, is characterized in that,
Described link detection module, also for determining that website that terminal accesses is satellite website and the access way that terminal accesses described satellite website is a step access.
10. the processing unit of too long link delay of satellite site according to claim 6, is characterized in that,
Described Configuration Manager, the access way flag also for described satellite website terminal accessed resets to two step access waies.
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| CN201110371534.1A CN103124441B (en) | 2011-11-21 | 2011-11-21 | A kind of processing method of too long link delay of satellite site and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1863164A (en) * | 2006-01-12 | 2006-11-15 | 华为技术有限公司 | Method for controlling reverse congestion of ABIS interface and transceiver base station |
| CN101594633A (en) * | 2009-06-19 | 2009-12-02 | 中兴通讯股份有限公司 | Use base station, terminal, the system and method for the defeated measuring reference signals of multi-antenna transmitting |
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| CN101232732B (en) * | 2008-02-25 | 2011-03-16 | 中兴通讯股份有限公司 | Method for switching boundary in multi-transmission type code division multiple access system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1863164A (en) * | 2006-01-12 | 2006-11-15 | 华为技术有限公司 | Method for controlling reverse congestion of ABIS interface and transceiver base station |
| CN101594633A (en) * | 2009-06-19 | 2009-12-02 | 中兴通讯股份有限公司 | Use base station, terminal, the system and method for the defeated measuring reference signals of multi-antenna transmitting |
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Effective date of registration: 20201225 Address after: Room 206, xifuhe digital intelligent innovation community Exhibition Center building, 49 Wengang South Road, Yannan high tech Zone, Yancheng City, Jiangsu Province Patentee after: Yancheng Yannan high tech Zone xifuhe digital intelligent industry development Co.,Ltd. Address before: 518057 Ministry of justice, Zhongxing building, South Science and technology road, Nanshan District hi tech Industrial Park, Shenzhen, Guangdong Patentee before: ZTE Corp. |
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