CN1610272A - Blue teeth terminal switching over method between cells - Google Patents
Blue teeth terminal switching over method between cells Download PDFInfo
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- CN1610272A CN1610272A CN200310101732.1A CN200310101732A CN1610272A CN 1610272 A CN1610272 A CN 1610272A CN 200310101732 A CN200310101732 A CN 200310101732A CN 1610272 A CN1610272 A CN 1610272A
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Abstract
The process of switching blue-tooth terminal between subzone includes the following steps: for the network side to broadcast adjacent subzone information containing subzone list and switching threshold to the blue-tooth terminal; for the blue-tooth terminal having the adjacent subzone information received to report upwards the monitored signal strength measurement information included in the adjacent subzone list, or to report upwards the monitored signal strength measurement information of the subzone meeting the switching threshold, or to send signal strength measurement information containing blue-tooth terminal side candidate subzone list to the network side; and for the network side to receive the said signal strength measurement information and to perform subsequent switching. Applying the present invention can lower the occupying of network transmission resource and reduce the processing burden of the blue-tooth base station controller.
Description
Technical field
The present invention relates to the Bluetooth technology field, be meant the method that a kind of Bluetooth terminal switches in the minizone especially.
Background technology
Bluetooth technology is a kind of short-distance wireless communication technology, development along with Bluetooth technology, Bluetooth technology has exceeded the notion of home intranet and small scale network, bluetooth base station (BBTS, BluetoothBTS) and bluetooth base station controller (BBSC, Bluetooth BSC) appearance has realized the honeycomb fashion networking based on Bluetooth technology, makes the communication based on Bluetooth technology be covered relatively large zone.Owing to adopt the honeycomb fashion networking, inevitably, Bluetooth mobile terminal (BMS, Bluetooth MS) can between different cellular cells, switch, the process that present BMS switches in the minizone, be the switching mode that adopts network leading, promptly mainly safeguard the candidate cell tabulation and initiate switching by network side BBSC.Dispose the neighbor cell lists of BBTS and the handoff threshold of each BBTS sub-district on the BBSC, as shown in Figure 1, handoff procedure may further comprise the steps:
The signal strength signal intensity of all sub-districts that step 101:BMS will monitor periodically reports BBSC via BBTS by signal strength measurement information.
Step 102:BBSC receives the signal strength measurement information that BMS reports, and judges whether to switch, if switch, then execution in step 103, otherwise carries out the adjustment of candidate cell tabulation, finishes the judgement of this switching.
Dispose the handoff threshold of neighbor cell lists and each neighbor cell correspondence on the BBSC.As shown in Figure 2, each BBTS cell configuration has two handoff thresholds, and the candidate cell tabulation adds thresholding (Ladd) and candidate cell tabulation removing thresholding (Ldrop).After BBSC receives the signal strength measurement information that BMS reports, at first that the signal strength measurement information that reports is entrained cell ID is the BBTS sign, in neighbor cell lists, compare, abandon the signal strength measurement information of non-neighbor cell, BBSC extracts signal strength information from the signal strength measurement information that keeps then, the handoff threshold of signal strength signal intensity and respective cell is compared, if this signal strength signal intensity increase also surpasses Ladd, the sign that then will send the BBTS of this signal is listed in the candidate cell tabulation, if this signal strength signal intensity reduction also is lower than Ldrop, then will send sign deletion from the candidate cell tabulation of the BBTS of this signal, finish the judgement of this switching.If current when providing the signal strength signal intensity of the BBTS sub-district of service to be lower than Ldrop for BMS, then execution in step 103, switch.
Step 103:BMS carries out follow-up handoff procedure under BBSC control, comprising BBSC according to situations such as the utilization of resources situation of each BBTS in the candidate cell tabulation and signal strength signal intensities, from the candidate cell tabulation, select a BBTS as purpose BBTS, BBSC control purpose BBTS provides corresponding wireless transmission resources then, set up air traffic channel, then notify BMS to be connected on the new air traffic channel and discharge the current wireless transmission resources that occupies.After finishing switching, BMS just can proceed communication by the air traffic channel that purpose BBTS provides.
It more than is the handoff procedure that belongs to the different B BTS minizone under the same BBSC, when two BBTS belong to different BBSC, after determining purpose BBTS, its follow-up switching flow comprises that also the purpose BBSC under BBSC and the purpose BBTS carries out communication, BBTS provides corresponding wireless transmission resources by purpose BBSC control purpose, set up air traffic channel, notify source BBSC under the current BBTS then, be connected on the new air traffic channel and discharge the current wireless transmission resources that occupies by source BBSC control BMS.
From this, above-mentioned changing method, what need the BMS cycle reports all measured BBTS cell signal strength metrical informations to network side BBSC, especially in the sub-district than the area of comparatively dense, BMS will constantly report the signal strength measurement information of all these sub-districts of monitoring.In fact, may there be neighborhood in some sub-district wherein with current service cell, and the signal of these sub-districts can be to not switching any effect that produces; And, for the signal strength measurement information of the sub-district that neighborhood is arranged that BMS reported, also include the signal that the candidate cell of BBSC is tabulated and do not exerted an influence, as being lower than the signal of Ladd, these signals also can be to switching any effect that produces; In addition, when BMS did not switch demand, any signal strength measurement information that is reported can be to not switching the generation effect yet.Above-described BMS reports a few class signal strength measurement information of BBSC, has wasted transmission resource of network, has increased the processing burden of BBSC simultaneously.
Summary of the invention
In view of this, main purpose of the present invention is to provide the method for a kind of BMS in the minizone switching, reduces taking of network transmission resource, reduces the processing burden of BBSC.
Realize the present invention, need following steps:
A, network side contain the neighbor cell message of neighbor cell lists to Bluetooth terminal broadcasting;
B, the Bluetooth terminal that receives neighbor cell message report the signal strength measurement information that is included in sub-district in the neighbor cell lists that is monitored;
The signal strength measurement information that C, the described Bluetooth terminal of network side receiving step B report is also carried out follow-up switching.
Wherein, further comprise the handoff threshold of each sub-district correspondence in the neighbor cell lists in the neighbor cell message of the described network side broadcasting of steps A, wherein handoff threshold comprises that the candidate cell tabulation adds thresholding Tadd and candidate cell tabulation removing thresholding Tdrop.
Wherein, the signal strength measurement information of reporting subdistrict is described in the step B: Bluetooth terminal reports the signal strength measurement information that is included in all sub-districts in the neighbor cell lists that is monitored.
Wherein, step B further comprises: the handoff threshold of this sub-district compares in the signal strength signal intensity of each sub-district that Bluetooth terminal will monitor and the received neighbor cell lists, reports the signal strength measurement information of this sub-district when meeting handoff threshold.Comprise: Bluetooth terminal compares this sub-district handoff threshold in the signal strength signal intensity of the neighbor cell that monitors and the received neighbor cell lists, the signal strength signal intensity of current neighbor cell increases and surpasses the Tadd of this sub-district in the neighbor cell lists, reports corresponding signal strength measurement information; Perhaps, the signal strength signal intensity of current neighbor cell reduces and is lower than the Tdrop of this sub-district in the neighbor cell lists, reports corresponding signal strength measurement information.
Wherein, in the setting of Bluetooth terminal side and store the tabulation of candidate cell, step B further comprises:
B1, Bluetooth terminal compare respective cell handoff threshold in the signal strength signal intensity of neighbor cell and the neighbor cell lists, if the signal strength signal intensity of neighbor cell increases and surpass the Tadd of this sub-district in the neighbor cell lists, in the tabulation of Bluetooth terminal side candidate cell, increase the corresponding district sign; If the signal strength signal intensity of neighbor cell reduces and is lower than the Tdrop of this sub-district in the neighbor cell lists, deletion corresponding district sign in the tabulation of Bluetooth terminal side candidate cell;
B2, if the signal strength signal intensity that Bluetooth terminal monitors current place Serving cell drops to the Tdrop of this sub-district in the neighbor cell lists, send the signal strength measurement information that contains the tabulation of Bluetooth terminal side candidate cell to network side.
Wherein, the described Bluetooth terminal of step B2 further comprises the information of purpose bluetooth base station in the signal strength measurement information that network side sends.Then the described network side of step C receives signal strength measurement information that Bluetooth terminal reports and carries out follow-up switching and comprise: network side is determined purpose bluetooth base station according to the information that receives the purpose bluetooth base station that current Bluetooth terminal reports, and controls current Bluetooth terminal and switches to purpose bluetooth base station cell from current bluetooth base station cell.
Wherein, the described network side of step C receives signal strength measurement information that Bluetooth terminal reports and carries out follow-up switching and comprise: network side is determined purpose bluetooth base station, controls current Bluetooth terminal and switches to purpose bluetooth base station cell from current bluetooth base station cell.
Wherein, the network side method of determining purpose bluetooth base station further comprises: network side is determined purpose bluetooth base station according to the utilization of resources situation and the signal strength signal intensity of each sub-district in the current candidate cell tabulation.
By said method as can be seen, the present invention can make BMS understand the neighbor cell lists of sub-district, current place and the handoff threshold of neighbor cell at any time, therefore can realize only reporting the signal strength measurement information that the sub-district of neighborhood is arranged with current service cell, and can be only be reported to Dutch to change thresholding can be to switching effective signal strength measurement information, thereby reduced the taking of network transmission resource, reduce the processing burden of BBSC.In addition, can also only when the switching demand is arranged, just carry out reporting of relevant information, further reduce the amount of information that is reported, thereby further reduce the taking of transmission resource of network reduced the processing burden of BBSC by the leading handoff procedure of BMS.
Description of drawings
Fig. 1 is the switching flow figure of present BMS in the minizone.
Fig. 2 is the handoff threshold schematic diagram of BBSC side.
Fig. 3 is the leading flow process of switching of BBSC of the present invention.
Fig. 4 is the leading flow process of switching of BMS of the present invention.
Embodiment
Among the present invention, BBSC is by BBTS broadcast channel broadcasts neighbor cell message, comprise the neighbor cell lists of current service cell and the handoff threshold separately of each neighbor cell correspondence in this neighbor cell message, BMS receives and stores this neighbor cell message, and utilize this information that the signal strength measurement information that BMS reports BBSC is screened, reduce reporting the signal strength measurement information amount of BBSC, thereby reduce taking network transmission resource and BBSC disposal ability.
Fig. 3 is the leading switching flow of network side of the present invention.Below switch to example with network side BBSC control BMS in the minizone, with reference to accompanying drawing 3, the present invention is described in more detail.
Step 301: network side BBSC has comprised neighbor cell lists and each self-corresponding handoff threshold of these neighbor cells of the current place of BMS Serving cell by the broadcasting neighbor cell message of BBTS period of broadcast channel in this neighbor cell message.
Step 302:BMS receives neighbor cell message, obtains the handoff threshold of neighbor cell lists and each neighbor cell correspondence, and BMS only carries out signal measurement to neighbor cell according to neighbor cell lists, ignores the signal of non-neighbor cell.For example, BMS judges the entrained BBTS sign of the cell signal that monitors, if this BBTS is identified in the neighbor cell lists, then carry out step 303, otherwise abandon this signal.
Step 303:BMS compares with corresponding handoff threshold the signal strength signal intensity of neighbor cell, when the signal strength signal intensity of neighbor cell increases and has surpassed the Tadd of this sub-district, report the signal strength measurement information that contains this cell information, notice BBSC increases corresponding BBTS sign in the candidate cell tabulation; When the signal strength signal intensity of neighbor cell is reduced to the Tdrop of this sub-district, report the signal strength measurement information that contains this cell information, the BBTS sign that notice BBSC deletion in the candidate cell tabulation is corresponding.
Step 304: network side BBSC receives the information that BMS reports, because step 303 is screened the signal strength measurement information that reports, therefore BBSC can upgrade neighbor cell lists according to the information that BMS reports, and other step and follow-up switching flow are identical with step 102-103 in the background technology.
Above-mentioned step 303 also can be omitted, and like this, BMS reports the signal strength measurement information of all neighbor cells of being monitored, is received this information and is safeguarded the candidate cell tabulation according to its handoff threshold by network side BBSC.
Fig. 4 is the leading switching flow of BMS.This switching mode, BMS does not report the signal strength measurement information amount to network side BBSC when BMS does not switch demand, therefore can further reduce the amount of information that is reported.Under this mode, the BMS side comprises the tabulation of candidate cell, below with reference to accompanying drawing 4, the present invention is described in more detail.
Step 401: network side BBSC has comprised neighbor cell lists and each self-corresponding handoff threshold of these neighbor cells of the current place of BMS Serving cell by the broadcasting neighbor cell message of BBTS period of broadcast channel in this neighbor cell message.
Step 402:BMS receives neighbor cell message, obtains neighbor cell lists and corresponding handoff threshold, and BMS only carries out signal measurement to neighbor cell according to neighbor cell lists, ignores the signal of non-neighbor cell.For example, BMS judges that to the entrained BBTS sign of the cell signal that monitors if this BBTS is identified in the neighbor cell lists, then execution in step 403, otherwise abandon this signal, finishes the follow-up judgement to this signal.
Step 403:BMS safeguards the candidate cell tabulation of self.BMS compares the signal strength signal intensity of neighbor cell and the handoff threshold of reception, when the signal strength signal intensity of neighbor cell increases and surpassed the Tadd of this sub-district, increases corresponding BBTS sign in the candidate cell tabulation of BMS side; When the signal strength signal intensity of neighbor cell reduces and is lower than the Tdrop of this sub-district, the corresponding BBTS sign of deletion in the candidate cell tabulation.
Step 404: when the signal strength signal intensity that monitors the Serving cell at current place as BMS dropped to this sub-district Tdrop, BMS initiated handoff request, to BBSC strength of transmitted signals metrical information.Wherein, signal strength measurement information comprises the signal strength signal intensity of candidate cell tabulation and corresponding each sub-district.
Step 405: network side BBSC received signal strength measurement information, BBSC carries out follow-up switching then according to the candidate cell tabulation of the candidate cell list update BBSC self in the signal strength measurement information, and follow-up flow process is identical with step 103 in the background technology.
Wherein, BMS also can further comprise purpose BBTS information in the described step 404 in BBSC strength of transmitted signals metrical information, and purpose BBTS is the BBTS that BMS selects according to signal strength signal intensity from the candidate cell tabulation of self.Then follow-up switching flow is except need not carrying out the selection of purpose BBTS again in the step 405, and other are identical with step 103 in the background technology.
It more than is the handoff procedure that belongs to the different B BTS minizone under the same BBSC, when BBTS belongs to different BBSC, after determining purpose BBTS, follow-up switching flow comprises that also the purpose BBSC under network side BBSC and the purpose BBTS carries out communication, BBTS provides corresponding wireless transmission resources by purpose BBSC control purpose, set up air traffic channel, notify source BBSC under the current BBTS then, be connected on the new air traffic channel and discharge the current wireless transmission resources that occupies by source BBSC control BMS.This part is same as the prior art, no longer describes.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1, a kind of Bluetooth terminal is characterized in that in the method for minizone switching this method may further comprise the steps:
A, network side contain the neighbor cell message of neighbor cell lists to Bluetooth terminal broadcasting;
B, the Bluetooth terminal that receives neighbor cell message report the signal strength measurement information that is included in sub-district in the neighbor cell lists that is monitored;
The signal strength measurement information that C, the described Bluetooth terminal of network side receiving step B report is also carried out follow-up switching.
2, method according to claim 1 is characterized in that, the signal strength measurement information of reporting subdistrict described in the step B is: Bluetooth terminal reports the signal strength measurement information that is included in all sub-districts in the neighbor cell lists that is monitored.
3, method according to claim 1, it is characterized in that, the handoff threshold that further comprises each sub-district correspondence in the neighbor cell lists in the neighbor cell message of the described network side broadcasting of steps A, described handoff threshold comprise that the candidate cell tabulation adds thresholding Tadd and candidate cell tabulation removing thresholding Tdrop.
4, method according to claim 3, it is characterized in that, step B further comprises: the handoff threshold of this sub-district compares in the signal strength signal intensity of each sub-district that Bluetooth terminal will monitor and the received neighbor cell lists, reports the signal strength measurement information of this sub-district when meeting handoff threshold.
5, method according to claim 4, it is characterized in that, this method comprises: Bluetooth terminal compares this sub-district handoff threshold in the signal strength signal intensity of the neighbor cell that monitors and the received neighbor cell lists, the signal strength signal intensity of current neighbor cell increases and surpasses the Tadd of this sub-district in the neighbor cell lists, reports corresponding signal strength measurement information; Perhaps, the signal strength signal intensity of current neighbor cell reduces and is lower than the Tdrop of this sub-district in the neighbor cell lists, reports corresponding signal strength measurement information.
6, method according to claim 3 is characterized in that, in the setting of Bluetooth terminal side and store the tabulation of candidate cell, step B further comprises:
B1, Bluetooth terminal compare respective cell handoff threshold in the signal strength signal intensity of neighbor cell and the neighbor cell lists, if the signal strength signal intensity of neighbor cell increases and surpass the Tadd of this sub-district in the neighbor cell lists, in the tabulation of Bluetooth terminal side candidate cell, increase the corresponding district sign; If the signal strength signal intensity of neighbor cell reduces and is lower than the Tdrop of this sub-district in the neighbor cell lists, deletion corresponding district sign in the tabulation of Bluetooth terminal side candidate cell;
B2, if the signal strength signal intensity that Bluetooth terminal monitors current place Serving cell drops to the Tdrop of this sub-district in the neighbor cell lists, send the signal strength measurement information that contains the tabulation of Bluetooth terminal side candidate cell to network side.
7, method according to claim 6 is characterized in that, the described Bluetooth terminal of step B2 further comprises the information of purpose bluetooth base station in the signal strength measurement information that network side sends.
8, method according to claim 7, it is characterized in that, the signal strength measurement information that the described network side reception of step C Bluetooth terminal reports is carried out follow-up switching and comprised: network side is determined purpose bluetooth base station according to the information of the purpose bluetooth base station that the current Bluetooth terminal of reception reports, and controls current Bluetooth terminal and switches to purpose bluetooth base station cell from current bluetooth base station cell.
9, method according to claim 1, it is characterized in that, the signal strength measurement information that the described network side reception of step C Bluetooth terminal reports is carried out follow-up switching and comprised: network side is determined purpose bluetooth base station, controls current Bluetooth terminal and switches to purpose bluetooth base station cell from current bluetooth base station cell.
10, method according to claim 9, it is characterized in that the method that network side is determined purpose bluetooth base station further comprises: network side is determined purpose bluetooth base station according to the utilization of resources situation and the signal strength signal intensity of each sub-district in the current candidate cell tabulation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200310101732.1A CN1610272A (en) | 2003-10-22 | 2003-10-22 | Blue teeth terminal switching over method between cells |
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| CN200310101732.1A CN1610272A (en) | 2003-10-22 | 2003-10-22 | Blue teeth terminal switching over method between cells |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101115293B (en) * | 2006-07-25 | 2010-09-08 | 启碁科技股份有限公司 | Wireless network roaming method and mobile phone device for mobile phone |
| CN101873661A (en) * | 2009-04-27 | 2010-10-27 | 大唐移动通信设备有限公司 | Method, system and terminal for determining coordinate district in CoMP system |
| CN101313603B (en) * | 2005-11-21 | 2010-12-29 | 三菱电机株式会社 | Radio communication system, base station, mobile apparatus and handover control server |
| CN101505488B (en) * | 2009-03-12 | 2011-02-09 | 华为技术有限公司 | Method and apparatus for ZONE handover |
| CN101989868A (en) * | 2009-08-05 | 2011-03-23 | 株式会社Ntt都科摩 | Multi-cell cooperative transmission method, central controller and user equipment |
| CN1937588B (en) * | 2006-10-19 | 2011-04-27 | 北京邮电大学 | A Fast Switching Trigger Method for Heterogeneous IP Networks |
| CN101160998B (en) * | 2005-09-02 | 2012-09-05 | 华为技术有限公司 | Method for co-exist base station collecting interfered status information of terminal |
| CN104349407A (en) * | 2013-07-24 | 2015-02-11 | 北京信威通信技术股份有限公司 | Method for switching to strong signal base station |
| CN104519512A (en) * | 2013-09-30 | 2015-04-15 | 重庆重邮信科通信技术有限公司 | Method for automatically detecting residential areas in neighbor relations |
| CN104703229A (en) * | 2013-12-10 | 2015-06-10 | 中国电信股份有限公司 | Optimal switching method and optimal switching system |
| US9198097B2 (en) | 2009-08-17 | 2015-11-24 | Zte Corporation | Method and device for initiating cell measurement |
| CN105264967A (en) * | 2013-05-23 | 2016-01-20 | 三星电子株式会社 | Cell information transmitting/receiving method and apparatus for use in wireless communication system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8494524B2 (en) | 2005-09-02 | 2013-07-23 | Huawei Technologies Co., Ltd. | Method for collecting interference status information of subscriber station by coexistence base station |
| CN101160998B (en) * | 2005-09-02 | 2012-09-05 | 华为技术有限公司 | Method for co-exist base station collecting interfered status information of terminal |
| CN101313603B (en) * | 2005-11-21 | 2010-12-29 | 三菱电机株式会社 | Radio communication system, base station, mobile apparatus and handover control server |
| CN101115293B (en) * | 2006-07-25 | 2010-09-08 | 启碁科技股份有限公司 | Wireless network roaming method and mobile phone device for mobile phone |
| CN1937588B (en) * | 2006-10-19 | 2011-04-27 | 北京邮电大学 | A Fast Switching Trigger Method for Heterogeneous IP Networks |
| CN101505488B (en) * | 2009-03-12 | 2011-02-09 | 华为技术有限公司 | Method and apparatus for ZONE handover |
| CN101873661A (en) * | 2009-04-27 | 2010-10-27 | 大唐移动通信设备有限公司 | Method, system and terminal for determining coordinate district in CoMP system |
| CN101989868B (en) * | 2009-08-05 | 2014-10-22 | 株式会社Ntt都科摩 | Multi-cell cooperative transmission method, central controller and user equipment |
| CN101989868A (en) * | 2009-08-05 | 2011-03-23 | 株式会社Ntt都科摩 | Multi-cell cooperative transmission method, central controller and user equipment |
| US9198097B2 (en) | 2009-08-17 | 2015-11-24 | Zte Corporation | Method and device for initiating cell measurement |
| CN101998477B (en) * | 2009-08-17 | 2017-03-29 | 中兴通讯股份有限公司 | A kind of method and device for starting cell measurement |
| CN105264967A (en) * | 2013-05-23 | 2016-01-20 | 三星电子株式会社 | Cell information transmitting/receiving method and apparatus for use in wireless communication system |
| CN105264967B (en) * | 2013-05-23 | 2019-12-13 | 三星电子株式会社 | Cell information transmitting/receiving method and apparatus for use in wireless communication system |
| CN104349407A (en) * | 2013-07-24 | 2015-02-11 | 北京信威通信技术股份有限公司 | Method for switching to strong signal base station |
| CN104349407B (en) * | 2013-07-24 | 2018-03-09 | 北京信威通信技术股份有限公司 | A kind of method switched to strong signal base station |
| CN104519512A (en) * | 2013-09-30 | 2015-04-15 | 重庆重邮信科通信技术有限公司 | Method for automatically detecting residential areas in neighbor relations |
| CN104519512B (en) * | 2013-09-30 | 2020-01-10 | 锐迪科（重庆）微电子科技有限公司 | Automatic neighbor cell relation cell detection method |
| CN104703229A (en) * | 2013-12-10 | 2015-06-10 | 中国电信股份有限公司 | Optimal switching method and optimal switching system |
| CN104703229B (en) * | 2013-12-10 | 2019-02-19 | 中国电信股份有限公司 | A kind of optimized switching method and system |
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