CN103124441A - Method and device for processing too long link delay of satellite site - Google Patents
Method and device for processing too long link delay of satellite site Download PDFInfo
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- CN103124441A CN103124441A CN2011103715341A CN201110371534A CN103124441A CN 103124441 A CN103124441 A CN 103124441A CN 2011103715341 A CN2011103715341 A CN 2011103715341A CN 201110371534 A CN201110371534 A CN 201110371534A CN 103124441 A CN103124441 A CN 103124441A
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Abstract
The invention discloses a method for processing too long link delay of a satellite site. The method comprises the steps that a BSC (Base Station Controller) judges whether ABIS interface link delay is beyond the maximum tolerant delay of one-step access, and if so, converts the access way of accessing a terminal to the satellite site into two-step access. The invention also discloses a device for processing too long link delay of the satellite site. The method and device for processing too long link delay of the satellite site solve the problem that a grouping service cannot be carried out normally due to the too long link delay of the satellite site.
Description
Technical field
The present invention relates to the communications field, refer to especially long processing method and the device of a kind of satellite website chain-circuit time delay.
Background technology
Base station in some isolated island or ecological depopulated zone, often limit because of geographical environment or the manpower, material resources and financial resources cost limit can't configure the transmission needed E1 line (E1transmission line), netting twine or optical fiber, in this case, generally can rent the part satellite link and transmit to substitute wire transmission.The advantage of satellite link, i.e. 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, Global System of Mobile communication) in technology, the two-way time delay in standard perigee of ABIS mouth (the ABIS mouth is the communication interface between the 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, Base Station Subsystem) time delay of internal system, actual overall delay is in the 360ms-500ms scope.And in actual network environment, exist secondary or the situation of satellite transmission repeatedly, be base transceiver station (BTS, Base Transceiver Station) through passing of satelline router, excessively arrive again the networking mode of base station controller (BSC, Base Station Controller) through satellite.Secondary relaying or above networking mode have significantly increased ABIS mouth chain-circuit time delay, if time delay is long, probably cause abnormal release of Packet Service can't normally carry out even fully.
Stipulate according to agreement: when mobile terminal sent first Radio Link control or medium access control (RLC/MAC, Radio Link Control/Medium Access Control) piece, the N3104 of mobile terminal began counting.Radio block of the every transmission of terminal, N3104 increase once counting, confiscate PACKET UPLINK ACK/NACK in N3104_MAX number, and step conflict solves unsuccessfully, access failure.N3104_MAX=3* (BS_CV_MAX+3) * number of uplink timeslots assigned wherein.
The BS_CV_MAX maximum is 15, and for most of mobile terminals, under step access, BSC generally distributes a up channel, and the N3104_MAX maximum is 54 pieces.That is to say, if mobile terminal carries out step access, if ABIS mouth chain-circuit time delay surpasses the time (time of a piece is 20ms) of 54 RLC/MAC pieces, namely surpasses 54*20=1080ms (this time delay comprises the time delay of Abis mouth and um mouth), terminal just can't normally be carried out Packet Service so.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of satellite website chain-circuit time delay long processing method and device, can't normally carry out the problem of Packet Service to solve the long terminal that causes of satellite website chain-circuit time delay.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention provides the long processing method of a kind of satellite website chain-circuit time delay, the method comprises:
Base station controller (BSC) judges whether ABIS mouth chain-circuit time delay surpasses the maximum tolerance time delay of step access, if surpass, the access way that terminal is accessed the satellite website is converted to the access of two steps.
The maximum tolerance time delay of described step access is N3104_MAX*20ms or N3104_MAX*20ms-2*Tm, and described Tm is the One Way Delay of Um mouth.
Delay time when described ABIS mouth chain-circuit time delay goes on foot over one the maximum tolerance that accesses, described ABIS mouth chain-circuit time delay also satisfies: less than the waiting-timeout time of the abnormal release of TBF.
Before BSC judges whether ABIS mouth chain-circuit time delay surpasses the maximum tolerance time delay of step access, the method also comprises: when BSC received the channel request message of self terminal, the website of determining the terminal access was that the access way of satellite website and the described satellite website of terminal access is step access.
The access way that terminal is accessed the satellite website is converted to the access of two steps, is specially:
BSC resets to two step access waies with the access way flag of the described satellite website of terminal access.
The present invention also provides a kind of satellite website chain-circuit time delay long processing unit, comprising: link detecting module and Configuration Manager, wherein:
Described link detecting module is used for judging whether ABIS mouth chain-circuit time delay surpasses the maximum tolerance time delay of step access;
Described Configuration Manager is used for delaying time when described ABIS mouth chain-circuit time delay surpasses the maximum tolerance of step access, and the access way that terminal is accessed the satellite website is converted to the access of two steps.
The maximum tolerance time delay of 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 detecting module also is used for delaying time when described ABIS mouth chain-circuit time delay surpasses the maximum tolerance of step access, determines that described ABIS mouth chain-circuit time delay also satisfies: less than the abnormal waiting-timeout time that discharges of TBF.
Described link detecting module, the website that also is used for definite terminal access are that the access way of satellite website and the described satellite website of terminal access is step access.
Described Configuration Manager, also the access way flag for the described satellite website that terminal is accessed resets to two step access waies.
Long processing method and the device of satellite website chain-circuit time delay of the present invention, when ABIS mouth chain-circuit time delay is long, the access way of the access satellite website of terminal is converted to the access of two steps by step access, the srvice instance of terminal can not discharged by force because of the restrictive condition of step access N3104_MAX*20ms, thereby has solved the long problem that causes Packet Service normally to carry out of satellite website chain-circuit time delay.
Description of drawings
Fig. 1 is the long process flow figure of satellite website chain-circuit time delay of the present invention;
Fig. 2 is the long processing unit structural representation of satellite website chain-circuit time delay of the present invention.
Embodiment
Situation for satellite station, cause step access to carry out if step access link time-delay is long, can use so two step access waies, based on this, the basic thought of the processing scheme that satellite website chain-circuit time delay of the present invention is long is: BSC judges whether ABIS mouth chain-circuit time delay surpasses the maximum tolerance time delay of step access, if surpass, the access way that terminal is accessed the satellite website is converted to the access of two steps.
At first, when BSC received the channel request message of self terminal, the website that needs definite terminal access was that the access way of satellite website and the described satellite website of terminal access is step access, and then carries out overtime judgement.
The concrete modes that the access way that BSC accesses the satellite website with terminal is converted to the access of two steps are: the access way flag of the satellite website of terminal access is reset to two step access waies.
Further, the maximum tolerance time delay of step access is N3104_MAX*20ms or N3104_MAX*20ms-2*Tm, and Tm is the One Way Delay of Um mouth.Concrete; when ABIS mouth chain-circuit time delay during less than N3104_MAX*20ms; can guarantee under this condition, to BSC, then the two-way delay of getting back to mobile terminal from BSC through Um mouth, Abis mouth accessed in the guard time scope in a step terminal by Um mouth, Abis mouth.More strictly, receive by time and the BTS that records the random access of terminal the time that terminal accesses, the difference of calculating both obtains the One Way Delay Tm (ms) of Um mouth, and so, the maximum tolerance time delay of step access can be modified to: N3104_MAX*20ms-2*Tm.
In addition, delay time when ABIS mouth chain-circuit time delay goes on foot over one the maximum tolerance that accesses, ABIS mouth chain-circuit time delay also need satisfy following condition: less than the abnormal waiting-timeout time that discharges of TBF.
Be that the long ABIS mouth chain-circuit time delay T that processing scheme was suitable for of satellite website chain-circuit time delay of the present invention is: the abnormal waiting-timeout time that discharges of N3104_MAX*20ms＜T＜TBF, perhaps, the abnormal waiting-timeout time that discharges of N3104_MAX*20ms-2*Tm＜T＜TBF.
Below by specific embodiment, such scheme is described.
Be illustrated in figure 1 as the embodiment of the present invention for the flow chart of the long processing method of satellite website chain-circuit time delay, 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 the time difference that sends data block and receive data piece, calculate ABIS mouth chain-circuit time delay T, specific implementation is prior art, repeats no more herein.
Wherein, the carrier of terminal transmission data block is Temporary Block Flow (TBF, Temporary Block Flow).
Step 102:BSC receives the channel request message of self terminal.
Step 103:BSC judges whether the website of terminal access is the satellite website, if not the satellite website, carries out the GSM Packet Service handling process of follow-up acquiescence, and this flow process is not the scope that the present invention discusses, and repeats no more herein; If the satellite website, execution in step 104.
Step 104:BSC judges whether the access way of terminal access satellite website is step access; If not step access, carry out the GSM Packet Service handling process of follow-up acquiescence; If step access, execution in step 105.
Step 105:BSC judges whether ABIS mouth chain-circuit time delay T is overtime, concrete, when T satisfies the abnormal waiting-timeout that discharges of N3104_MAX*20ms＜T＜TBF during the time, perhaps, T satisfies the abnormal waiting-timeout that discharges of N3104_MAX*20ms-2*Tm＜T＜TBF during the time, judges that ABIS mouth chain-circuit time delay T is overtime.If T is not overtime for ABIS mouth chain-circuit time delay, carry out the GSM Packet Service handling process of follow-up acquiescence; If T is overtime for ABIS mouth chain-circuit time delay, carry out step 106.
In addition, T why need to be less than the abnormal waiting-timeout time that discharges of TBF, be because: if T surpasses the abnormal waiting-timeout time that discharges of TBF, the srvice instance of terminal can discharge by force so, and subsequent step can't carry out.
Step 106: because ABIS mouth chain-circuit time delay is overtime, BSC resets to two step access waies with the access way flag of terminal place satellite website, namely assigns monolithic in the grouping immediate assignment, and terminal accesses by sending grouping resources request mode.
So, this and after terminal access mode of this satellite website all be automatically converted to two step access modules and process.
By above-described embodiment, the satellite website in the Packet Service transmitting procedure, if ABIS mouth chain-circuit time delay T in the scope that limits the time delay standard, terminal can normally be carried out the Packet Service transmission.If ABIS mouth chain-circuit time delay has exceeded the standard that limits time delay, dynamically adjust ground to force the access of two steps to be assigned from accessing terminal of satellite website.After this reached, the srvice instance that newly accesses terminal can not discharge by force because of the restrictive condition of step access N3104_MAX*20ms, thereby has solved the long problem that causes Packet Service normally to carry out of satellite website chain-circuit time delay.
In order to realize said method, the present invention also provides a kind of satellite website chain-circuit time delay long processing unit, and as shown in Figure 2, this device can be applied to comprise in BSC: link detecting module and Configuration Manager, wherein:
The link detecting module is used for judging whether ABIS mouth chain-circuit time delay surpasses the maximum tolerance time delay of step access;
Configuration Manager is used for delaying time when ABIS mouth chain-circuit time delay surpasses the maximum tolerance of step access, and the access way that terminal is accessed the satellite website is converted to the access of two steps.
Wherein, the maximum tolerance time delay of step access is N3104_MAX*20ms or N3104_MAX*20ms-2*Tm, and Tm is the One Way Delay of Um mouth.
Delay time when ABIS mouth chain-circuit time delay surpasses the maximum tolerance of step access, the link detecting module is used for also determining that ABIS mouth chain-circuit time delay satisfies: less than the abnormal waiting-timeout time that discharges of TBF.
Judge overtime before, the link detecting module is used for also determining that the website of terminal access is that the access way of satellite website and terminal access satellite website is step access.
When the access way that terminal is accessed the satellite website is converted to two steps accesses, concrete, by Configuration Manager, the access way flag of the satellite website of terminal access is reset to two step access waies.
The above is only preferred embodiment of the present invention, is not for limiting protection scope of the present invention.
Claims (10)
1. the long processing method of satellite website chain-circuit time delay, is characterized in that, the method comprises:
Base station controller (BSC) judges whether ABIS mouth chain-circuit time delay surpasses the maximum tolerance time delay of step access, if surpass, the access way that terminal is accessed the satellite website is converted to the access of two steps.
2. the long processing method of satellite website chain-circuit time delay according to claim 1, is characterized in that,
The maximum tolerance time delay of 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 long processing method of described satellite website chain-circuit time delay according to claim 1 and 2, it is characterized in that, delay time when described ABIS mouth chain-circuit time delay goes on foot over one the maximum tolerance that accesses, described ABIS mouth chain-circuit time delay also satisfies: less than the waiting-timeout time of the abnormal release of TBF.
4. the long processing method of satellite website chain-circuit time delay according to claim 1, it is characterized in that, before BSC judges whether ABIS mouth chain-circuit time delay surpasses the maximum tolerance time delay of step access, the method also comprises: when BSC received the channel request message of self terminal, the website of determining the terminal access was that the access way of satellite website and the described satellite website of terminal access is step access.
5. the long processing method of satellite website chain-circuit time delay according to claim 1, is characterized in that, the access way that terminal is accessed the satellite website is converted to the access of two steps, is specially:
BSC resets to two step access waies with the access way flag of the described satellite website of terminal access.
6. the long processing unit of satellite website chain-circuit time delay, is characterized in that, comprising: link detecting module and Configuration Manager, wherein:
Described link detecting module is used for judging whether ABIS mouth chain-circuit time delay surpasses the maximum tolerance time delay of step access;
Described Configuration Manager is used for delaying time when described ABIS mouth chain-circuit time delay surpasses the maximum tolerance of step access, and the access way that terminal is accessed the satellite website is converted to the access of two steps.
7. the long processing unit of satellite website chain-circuit time delay according to claim 6, is characterized in that,
The maximum tolerance time delay of 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 according to claim 6 or 7 long processing unit of described satellite website chain-circuit time delay, is characterized in that,
Described link detecting module also is used for delaying time when described ABIS mouth chain-circuit time delay surpasses the maximum tolerance of step access, determines that described ABIS mouth chain-circuit time delay also satisfies: less than the abnormal waiting-timeout time that discharges of TBF.
9. the long processing unit of satellite website chain-circuit time delay according to claim 6, is characterized in that,
Described link detecting module, the website that also is used for definite terminal access are that the access way of satellite website and the described satellite website of terminal access is step access.
10. the long processing unit of satellite website chain-circuit time delay according to claim 6, is characterized in that,
Described Configuration Manager, also the access way flag for the described satellite website that terminal is 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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| 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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| CN103124441B CN103124441B (en) | 2015-12-16 |
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Citations (3)
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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 |
| CN101232732A (en) * | 2008-02-25 | 2008-07-30 | 中兴通讯股份有限公司 | Method for switching boundary in multi-transmission type code division multiple access system |
| 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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Patent Citations (3)
| 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 |
| CN101232732A (en) * | 2008-02-25 | 2008-07-30 | 中兴通讯股份有限公司 | Method for switching boundary in multi-transmission type code division multiple access system |
| 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. |