CN1996788B - Configuration device and adjusting method of the time slot of the wireless network direct station based on the satellite synchronization - Google Patents
Configuration device and adjusting method of the time slot of the wireless network direct station based on the satellite synchronization Download PDFInfo
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- CN1996788B CN1996788B CN200610105103XA CN200610105103A CN1996788B CN 1996788 B CN1996788 B CN 1996788B CN 200610105103X A CN200610105103X A CN 200610105103XA CN 200610105103 A CN200610105103 A CN 200610105103A CN 1996788 B CN1996788 B CN 1996788B
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Abstract
This invention discloses a TD-SCDMA wireless network direct repeater station time gap configuration device and an adjustment method based on synchronous satellite. The device finishes the automatic adjustment of the time gap configuration through cooperative work of a synchronous module and a time gap detection module. The adjustment method comprises the following steps: closing a radio frequency module when a machine is started, and performing the synchronization; counting based on GPS time reference, calculating a second transformation point time of the time gap proportion; setting the time delay based on the distance between the direct repeater station and a base station, finally giving the second transformation point time of different time gap proportions; the time gap detection module simultaneously coarsely detecting the second transformation point time to a downlink radio frequency signal, comparing the time gap state detection information and the calculated second transformation point time of the time gap, and obtaining the time gap real configuration proportion set. Based on a TDD duplex model, under a wireless network environment with unfixed uplink and downlink time gap configuration, the network uplink and downlink time gap configuration is automatically obtained. The project maintenance work load and error probability are reduced.
Description
Technical field
A kind of synchronization slot that the present invention relates to mobile communication is adjusted inking device automatically, and is particularly a kind of based on satellite synchronous automatic inking device of TD-SCDMA radio network repeater time slot and collocation method.
Background technology
Along with the development of mobile data services, the 2G frequency resource that makes China is faced with exhausted danger.Development 3G, the demand and the high-end consumers that satisfy the mobile voice that grows at top speed simultaneously are imperative to the demand of high-speed mobile data service.
In three international standards of 3G; TD-SCDMA is the technical standard that China has independent intellectual property right, receives the policy protection of country, simultaneously; The commercialization process has also obtained the extensive approval of operator at present, in the huge 3G network market of China, has bright prospect.
The repeater be can receive at up-down bidirectional, the equipment of the RF signal of amplification and emission space radiation (wireless introducing mode) or cable and optical cable conduction (wired introducing mode); Exist at outdoor station under the situation of capacity more than needed; Can outdoor signal be introduced indoor coverage hole through the repeater; The repeater simple installation flexibly, instant effect, the cycle is short, cost is also lower, is suitable for the indoor covering of low telephone traffic, small and medium construction.The underground parking of large-scale office building covers the good place that is to use the repeater, and underground system has natural isolation, need not consider the signal problem that leaks, and not have capacity requirement, and it covers is again the necessary component that guarantees the key area quality.As the expansion of the covering of suburb signal, the repeater also be a kind of fast and economic means.Therefore, the TD-SCDMA repeater will be one of indispensable equipment of the TD-SCDMA network coverage
TD-SCDMA adopts time division duplex, is different from the FDD mode of operation, needs synchro switch that time control is carried out in transmitting-receiving in radio frequency part, therefore in the design of repeater, needs to introduce the simultaneous extraction module.
Simultaneous extraction mainly contains three kinds of modes in the TD-SCDMA repeater.
The √ carrier wave detects
√ GPS is synchronous
The √ terminal module
The terminal module mode has following shortcoming at present:
1. terminal module is immature.
2. terminal module has the possibility that receives a plurality of sectors or other base station signal, and causes the repeater timing error.
3. terminal module sensitivity is to received signal synchronously had relatively high expectations.
And the mode precision that carrier wave detects is lower, be subject to the influence of wireless environment, so the GPS method of synchronization is widely used.
But adopt GPS in the application of repeater, to have following problem synchronously;
1, time slot disposes automatically: in the TD-SCDMA system; Can control and change the period length ratio of sending and receiving flexibly; Can conveniently adjust the time slot configuration number of up-downgoing, the high efficiency of transmission of non-symmetrical services such as this especially suitable from now on mobile Internet, multimedia video demand.
2, since TD-SCDMA to carry out the whole network through GPS synchronous, so the repeater can obtain the starting point of frame from the absolute time of GPS, takies number of time slots according to its protection time slot and up-downgoing then and calculates second and be up to the descending transfer point time.
3, still, be to know concrete uplink and downlink timeslot allocation ratio through the GPS method of synchronization, need can bring very big inconvenience to the construction and the maintenance of repeater like this, so the automatic configuration of time slot allocation to be very important through artificial input.
Summary of the invention
Defective or deficiency to above-mentioned existence the objective of the invention is to, and provide a kind of synchronous based on satellite, simple in structure, and be easy to use based on the synchronous TD-SCDMA radio network repeater time slot configuration device of satellite.
Another goal of the invention of the present invention provides the adjustment collocation method.
The technical solution that realizes the foregoing invention purpose is: synchronous based on satellite; Simple in structure; TD-SCDMA network repeat station automatic time-slot inking device easy to use; Marked improvement of the present invention is: synchronization module and time slot detection module are embedded in the control module of repeater, and the signal of the GPS submodule that its synchronization module is built-in inputs to the counting submodule, and the signal of counting submodule inputs to the time-delay submodule; The signal of time-delay submodule inputs to the built-in time slot measuring and calculating of time slot detection module and sets submodule, and the signal of rough detection submodule inputs to the time slot measuring and calculating and sets submodule synchronously;
Above-mentioned repeater control module comprises synchronization module (M1), time slot detection module (M2);
Above-mentioned synchronization module (M1) is embedded with GPS submodule (M11), counting submodule (M12), and time-delay submodule (M13),
Above-mentioned time slot detection module (M2) is embedded with synchronous rough detection submodule (M21), and submodule (M22) is set in the time slot measuring and calculating;
Above-mentioned GPS submodule (M11) provides the standard time benchmark with base station synchronization for synchronization module;
The standard time benchmark that above-mentioned counting submodule (M12) provides with the GPS submodule begins counting, thereby calculates the second corresponding transfer point time of all uplink and downlink timeslot proportionings according to the TD-SCDMA frame structure;
Above-mentioned time-delay submodule (M13) is adjusted (M12) all different second transfer point times of uplink and downlink timeslot proportioning according to the time delay that repeater and base station distance cause, thereby accurately calculates the different second transfer point times of uplink and downlink timeslot proportioning;
Above-mentioned synchronous rough detection submodule (M21) detects the second transfer point time of Preliminary detection uplink and downlink timeslot according to the radiofrequency signal of receiving;
Above-mentioned time slot measuring and calculating is set submodule (M22) (M21) detected second transfer point time of time slot and the second transfer point time of different uplink and downlink timeslot proportionings that (M13) calculates is compared, and draws time slot proportion relation back configuration time slot automatically.
A kind of time slot is adjusted collocation method automatically, and its time slot workflow of configuration automatically may further comprise the steps:
(1) when initial start, at first closes radio-frequency module, carry out the synchronous of GPS simultaneously;
(2) in case GPS is synchronous, then begin to count with the time reference of GPS, calculate the corresponding second transfer point time of all time slot proportion according to the TD-SCDMA frame structure;
(3) according to the distance setting time delay of repeater and base station, the second transfer point time of different time-gap proportioning is carried out the time delay adjustment handle, finally provide the second corresponding transfer point time of different time-gap proportioning;
(4) the time slot detection module carries out the time slot second transfer point time Rough Inspection to downlink radio-frequency signal simultaneously; The time slot transfer point time that draws thus with through the time delay the second corresponding transfer point time ratio of the different time-gap proportioning that calculates, the second transfer point time of getting the minimum pairing time slot proportion correspondence after the time delay resume module of difference is as the second transfer point time of uplink and downlink timeslot.The up-downgoing proportioning that this transfer point is corresponding is the time slot proportion of network;
(5) open the radio-frequency module operate as normal.
Above-mentioned submodule implementation method is specially: a GPS submodule is set, with the acquisition time benchmark.Be provided with a counting submodule, to calculate the second corresponding time transfer point of different time-gap proportioning.A time-delay submodule is set, with the time delay of adjustment repeater and base station distance.The main work of time slot detection module is exactly to carry out time slot rough detection, time slot reckoning and playback, thereby accomplishes the automatic configuration of time slot.
The present invention compared with prior art; Solved under based on the work of TDD dual-mode; In the unfixed wireless network environment of uplink and downlink timeslot, the setting of wireless discharging-directly station time slot needs manual or through the problem that remote network management is set, has realized the automatic configuration of time slot under this environment; The time slot that can detect automatically in the network is set, and has significantly reduced the cost and the error probability of repeater engineering maintenance.The invention of employing this method, it is less demanding that wireless signal is detected response speed, detects error and within time slot duration/2, all can accurately measure the time slot setting in the network.
Description of drawings
Fig. 1 is a TD-SCDMA of the present invention repeater control section structural representation;
Fig. 2 is synchronization module of the present invention and time slot detection module structure and graph of a relation;
Fig. 3 is the time slot adjustment and the workflow diagram that disposes automatically automatically that the present invention realizes.
Embodiment
Accompanying drawing is embodiments of the invention
Below in conjunction with accompanying drawing content of the present invention is further described:
With reference to Fig. 1, shown in Figure 2; A kind of radio network repeater that works in TD-SCDMA TDD duplex mode that is embedded in; With adjust inking device automatically based on the time slot of satellite fix Network Synchronization mode; Its synchronization module M1 and time slot detection module M2 are embedded in the control module of repeater, and the signal of the GPS submodule M11 that synchronization module M1 is built-in inputs to counting submodule M12, and the signal of counting submodule M12 inputs to time-delay submodule M13; The signal of time-delay submodule M13 inputs to the built-in time slot measuring and calculating of time slot detection module M2 and sets submodule M22, and the signal of time slot rough detection submodule M21 inputs to the time slot measuring and calculating and sets submodule M22.
Shown in Figure 3, its time slot workflow of configuration automatically may further comprise the steps:
(1) when initial start, at first closes radio-frequency module, carry out the synchronous of GPS simultaneously;
(2) in case GPS is synchronous, then begin to count with the time reference of GPS, calculate the second corresponding transfer point time of all time slot proportion;
(3) according to the distance setting time delay of repeater and base station, the second transfer point time of different time-gap proportioning is carried out the time delay adjustment handle, finally provide the second corresponding transfer point time of different time-gap proportioning;
When (4) starting shooting; The time slot detection module carries out the second transfer point time Rough Inspection, time slot reckoning and playback to downlink radio-frequency signal simultaneously; Compare with the time slot transfer point time of each time slot proportion in the synchronization module; Be set to the corresponding time slot transfer point that synchronization module calculates then, get the actual proportioning and the setting of output time slot;
(5), open the radio-frequency module operate as normal.
In TD-SCDMA networking process; The time slot configuration of base station need be known in the repeater, ability and base station synchronization, and through manual configuration; Maybe be owing to can not in time obtaining information or the information accurately of can not get causes the delay of network opening, even system is caused interference.And the time slot automatic regulating apparatus that adopts this method invention to design can obtain the network slot configuration automatically, thereby has reduced TD-SCDMA repeater engineering maintenance cost and error probability.
Carry out the automatic configuration of time slot during start and should satisfy following two conditions:
● when carrying out time slot configuration calculating, radio-frequency module should be closed.
● the intensity of signal is greater than threshold level
Embodiment:
1. repeater control module structure:
The repeater control module comprises synchronization module M1, time slot detection module M2;
Synchronization module M1 is embedded with GPS submodule M11, counting submodule M12, and time-delay submodule M13, time slot detection module M2 is embedded with synchronous rough detection submodule M21, and submodule M22 is set in the time slot measuring and calculating;
GPS submodule M11 is that synchronization module provides the standard time benchmark with base station synchronization;
Counting submodule M12 is that count on the basis with the standard time benchmark;
The time delay of time-delay submodule M13 adjustment repeater and base station different distance;
Rough detection submodule M21 is according to the time of the radiofrequency signal Preliminary detection time slot transfer point of receiving synchronously;
The second transfer point time that submodule M22 slightly goes on foot synchronous rough detection submodule M21 detection is set in the time slot measuring and calculating; Compare with warp calculating and adjusted each second transfer point time of time slot proportion time slot corresponding of time delay in the synchronization module, be set to the second transfer point time of corresponding time slot that synchronization module calculates then.
2. realize principle and flow process:
Repeater start carrying out initialization; This moment, the radio frequency part of repeater was in closed condition; M11 submodule among the synchronization module M1 receives gps signal through gps antenna; In case gps signal is synchronous, counting submodule M12 then begins counting with the time base of GPS, calculates the time point of first time slot transfer point according to frame structure.Provide the second corresponding transfer point time of different time-gap proportioning simultaneously respectively, promptly up: descending being respectively 1: 5,2: 4 and 3: 3, the time slot transfer point time of 4: 2 and 5: 1.
The time-delay submodule is according to the distance of repeater apart from the base station, and the time-delay that the calculating transmission brings is with the time of adjustment transfer point.
In sum, rough detection submodule M21 reception synchronously detects after amplifying and to it from descending radiofrequency signal, thereby provides the Rough Inspection information of the second transfer point time.The second transfer point time of this synchronous transfer point time with each time slot proportion that the time-delay submodule is sent here compares, and error is present base station time slot proportioning situation less than the pairing time slot proportion of time slot duration 675uS/2.
Claims (2)
1. adjust inking device automatically based on the synchronous TD-SCDMA network repeat station time slot of satellite for one kind; It is characterized in that: synchronization module (M1) and time slot detection module (M2) are embedded in the control module of repeater; The signal of the GPS submodule (M11) that synchronization module (M1) is built-in inputs to counting submodule (M12), and the signal of counting submodule (M12) inputs to time-delay submodule (M13); The signal of time-delay submodule (M13) inputs to the built-in time slot measuring and calculating of time slot detection module (M2) and sets submodule (M22);
Above-mentioned repeater control module comprises synchronization module (M1), time slot detection module (M2);
Above-mentioned synchronization module (M1) is embedded with GPS submodule (M11), counting submodule (M12), time-delay submodule (M13);
Above-mentioned time slot detection module (M2) is embedded with synchronous rough detection submodule (M21), and submodule (M22) is set in the time slot measuring and calculating;
Above-mentioned GPS submodule (M11) provides the standard time benchmark with base station synchronization for synchronization module;
The standard time benchmark that above-mentioned counting submodule (M12) provides with the GPS submodule begins counting, thereby calculates the second corresponding transfer point time of all uplink and downlink timeslot proportionings according to the TD-SCDMA frame structure;
The time delay that above-mentioned time-delay submodule (M13) causes according to repeater and base station different distance is adjusted all different second transfer point times of uplink and downlink timeslot proportioning;
Above-mentioned synchronous rough detection submodule (M21) is according to the time of the radiofrequency signal Preliminary detection uplink and downlink timeslot transfer point of receiving;
Above-mentioned time slot measuring and calculating setting submodule (M22) is to the Preliminary detection time slot position and after the adjusted time slot of time delay compares, draw time slot proportion, carries out time slot according to this time slot proportion and disposes automatically.
2. the time slot method of automatic configuration of the said inking device of claim 1, its time slot workflow of configuration automatically may further comprise the steps:
(1) when initial start, at first closes radio-frequency module, carry out the synchronous of GPS submodule simultaneously;
(2) in case the GPS submodule is synchronous, then begin to count with the time reference of GPS submodule, calculate the second corresponding transfer point time of all uplink and downlink timeslot proportionings according to the TD-SCDMA frame structure;
(3) according to the distance setting time delay of repeater and base station,, handles the second corresponding transfer point time of different uplink and downlink timeslot proportionings thereby being carried out the time delay adjustment;
When (4) starting shooting; Synchronous rough detection submodule (M21) in the time slot detection module carries out the time slot second transfer point time Rough Inspection to downlink radio-frequency signal simultaneously; The time slot transfer point time that draws thus with through the time delay the second corresponding transfer point time of the different time-gap proportioning that calculates and compare at time slot measuring and calculating setting submodule (M22); Get the pairing second transfer point time after the adjustment of time-delay submodule time delay is handled of minimal difference; As the second transfer point time of uplink and downlink timeslot, the uplink and downlink timeslot proportioning that this transfer point is corresponding is the time slot proportion of network;
(5) according to this time slot proportion time slot is carried out in the repeater and dispose automatically, open the radio-frequency module operate as normal.
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| CN101252385B (en) * | 2008-02-22 | 2013-03-13 | 杭州电子科技大学 | Method for implementing signal synchronization in TDD digital baseband straight amplifying station |
| US7903681B2 (en) * | 2008-06-13 | 2011-03-08 | Alcatel Lucent | Method for distributing a common time reference within a distributed architecture |
| CN101651589B (en) * | 2008-08-12 | 2013-04-17 | 华为技术有限公司 | Method and device for setting state of cell |
| CN101924587A (en) * | 2010-08-10 | 2010-12-22 | 北京大学 | Method for dynamically adjusting uplink and downlink time slots in time division duplex communication method |
| CN103098412B (en) * | 2012-10-29 | 2015-04-29 | 华为技术有限公司 | Initialization method, device and system |
| CN103260183B (en) * | 2013-04-19 | 2015-12-23 | 海能达通信股份有限公司 | Two-way electric measuring method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1582001A (en) * | 2003-07-31 | 2005-02-16 | 华为技术有限公司 | Method for high-frequency amplifying station to gain switching point in TD-SCDMA system |
| WO2005096641A1 (en) * | 2004-04-01 | 2005-10-13 | Da Tang Mobile Communications Equipment Co., Ltd. | A relay handover method in td-scdma mobile communication system |
| CN1866789A (en) * | 2006-05-31 | 2006-11-22 | 福建邮科通信技术有限公司 | Method and apparatus for TD-SCDMA repeater GPS synchronization |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1582001A (en) * | 2003-07-31 | 2005-02-16 | 华为技术有限公司 | Method for high-frequency amplifying station to gain switching point in TD-SCDMA system |
| WO2005096641A1 (en) * | 2004-04-01 | 2005-10-13 | Da Tang Mobile Communications Equipment Co., Ltd. | A relay handover method in td-scdma mobile communication system |
| CN1866789A (en) * | 2006-05-31 | 2006-11-22 | 福建邮科通信技术有限公司 | Method and apparatus for TD-SCDMA repeater GPS synchronization |
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