CN101217815B - A cross-regional shifting method of traveling carriage initiative mobile communication system - Google Patents
A cross-regional shifting method of traveling carriage initiative mobile communication system Download PDFInfo
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- CN101217815B CN101217815B CN2008100556394A CN200810055639A CN101217815B CN 101217815 B CN101217815 B CN 101217815B CN 2008100556394 A CN2008100556394 A CN 2008100556394A CN 200810055639 A CN200810055639 A CN 200810055639A CN 101217815 B CN101217815 B CN 101217815B
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Abstract
The invention provides a mobile station handoff method in an active mobile communication system of a mobile station. In the method, when being required to be switched, the mobile station broadcasts an inquiry burst to the surrounding cells which report the signal quality of the received inquiry burst to a base station controller which queues the signal quality of the inquiry burst; the cell corresponding to the inquiry burst with the best signal quality is the target cell to which the mobile station is to be switched; the base station controller informs the target cell of preparing to receive and switch the mobile station and consults with the target cell a channel to be used after the mobile station is switched; after that, the base station controller informs the mobile station to switch to the selected target cell through a source cell, and the mobile station carries out a service transmission in the target cell by the channel which is consulted by the base station controller and the target cell. By adopting the mobile station switching method of the invention, under the assist of the base station controller, the mobile station can achieve the handoff faster and more reliably, effectively solves the problem of long switching time and reduces the switching interruption rate.
Description
Technical field
The present invention relates to the method for handover in a kind of mobile communication system, be specifically related to the method for travelling carriage handover in a kind of travelling carriage active mobile communication system.
Background technology
In traditional mobile communication system, ceaselessly launch the beacon channel signal by the base station always.Travelling carriage is in moving process, the beacon channel signal quality of monitoring peripheral cell, when the beacon channel signal quality of cell-of-origin drops under the handoff threshold, the peripheral cell beacon channel best with signal quality replaces the cell-of-origin beacon channel, and this just represents that travelling carriage has switched to new sub-district.
At travelling carriage initiatively in the mobile communication system, the beacon channel signal of emission always not, when the travelling carriage Request System serve, system inserted website accordingly and launches pilot tone and system information, has reduced system interference.Travelling carriage is when mobile, the quality of base station monitors reverse link traffic channel, the quality of travelling carriage monitoring downlink traffic channel is when the quality of upstream or downstream Traffic Channel drops under the handoff threshold, just switch, guarantee the accuracy of switch decision and switch the necessity of implementing.For each active mobile station, all there is a corresponding virtual lock unit to be synchronized on the clock of travelling carriage in the base station.
From to travelling carriage initiatively mobile communication system introduction as can be seen, because the beacon channel that travelling carriage active mobile communication system is not launched always, travelling carriage can not be monitored the beacon channel of peripheral cell, when the Traffic Channel quality of cell-of-origin drops under the handoff threshold, the purpose sub-district accurately need be selected and switch to as early as possible to travelling carriage.A kind of way that has proposed at present is access procedure of Mobile Origination, it is travelling carriage Cell Broadcast CB apply for information towards periphery, signal quality according to the peripheral base station response message comes the select target sub-district then, but in this method, the response message that peripheral base station returns to travelling carriage needs the monitoring of travelling carriage, and these message are not to arrive travelling carriage simultaneously, will cause HO-break duration long, influence handover success rate.Therefore, a kind of more fast, reliable more new travelling carriage handoff technique of needs.
Summary of the invention
The object of the present invention is to provide the travelling carriage method of handover in a kind of travelling carriage active mobile communication system.
For shortening HO-break duration significantly, method of the present invention utilizes base station controller to come the auxiliary moving platform to finish handoff procedure.In the method for the present invention, when travelling carriage switches at needs, the burst of Cell Broadcast CB inquiry towards periphery, peripheral cell reports base station controller to the signal quality SIR of the inquiry burst that receives, by base station controller the signal quality SIR of these inquiry bursts is ranked, the best inquiry burst corresponding district of signal quality SIR is exactly the Target cell that travelling carriage will be selected.Base station controller notification target sub-district performs admits the preparation of switching travelling carriage, and consults the channel that travelling carriage uses with Target cell.On the other hand, base station controller begins to switch to selected Target cell by cell-of-origin notice travelling carriage.The channel that travelling carriage uses base station controller and Target cell to consult carries out the business transmission in Target cell.
Adopt travelling carriage active mobile communication system of the present invention to comprise:
Travelling carriage, promptly subscriber equipment comprises making a call and two kinds of uses of quilt calling situations.When Mobile Origination is called out, at first cover its base station by system's common uplink access channel inquiry, after receiving response message, the answer signal signal to noise ratio that receives is ranked, allow under the situation of user's access at the base station load, the base station of selected signal to noise ratio maximum is inserted, and this process is called access procedure; When mobile terminated the time, by paging base station travelling carriage is carried out paging, when travelling carriage is received the beep-page message of oneself, enter access procedure, in access procedure, the selected base station that connects, after the access,, be ready to converse with the calling subscriber to the position of System Reports oneself;
The base station is connected with core net by base station controller, and function is to receive the information of travelling carriage in the overlay area and send information to travelling carriage, and its overlay area can be overlapping; When receiving the access apply for information of travelling carriage at the common uplink access channel, show that this travelling carriage is in the overlay area of oneself, travelling carriage to be replied, response message comprises the identity code and the load condition of base station;
Paging base station links to each other with core net by base station controller, on paging channel travelling carriage is not carried out paging when knowing the particular location of called mobile station in system; When system need be to intrasystem travelling carriage broadcast message, paging base station was born the work that sends broadcast message to travelling carriage;
Base station controller is connected with paging base station the base station with core net.Base station and travelling carriage are controlled.
Travelling carriage of the present invention is mobile communication system travelling carriage method of handover initiatively, comprises step:
Step 1: travelling carriage keeps being connected with the business of source base station in the scope of source base station;
Step 2: the signal quality that travelling carriage or source base station monitor the downlink or uplink Traffic Channel drops under the handoff threshold; Drop under the handoff threshold if travelling carriage monitors the downlink traffic channel signal quality, then travelling carriage starts switching voluntarily; Drop under the handoff threshold if source base station monitors the reverse link traffic channel signal quality, then source base station notice travelling carriage starts switching;
Step 3: travelling carriage scans the uplink random access channel, tests their interference level, selects the minimum uplink random access channel of interference level;
Step 4: utilize the uplink random access channel base station broadcast inquiry towards periphery burst of selecting, comprise the identity information of travelling carriage in the inquiry burst and switch the sign of inquiry;
Step 5: the base station that receives travelling carriage inquiry burst reports base station controller to the signal quality of the inquiry burst that receives;
Step 6: base station controller is ranked the inquiry burst quality that the base station reports, and selects the best base station of signal quality as target BS;
Step 7: base station controller and its selected target BS are consulted the channel parameter that travelling carriage should use;
Step 8: the channel parameter notification source base station that base station controller should use travelling carriage, and the order source base station disconnects being connected between source base station and the travelling carriage after these parameters notice travelling carriages;
Step 9: source base station is notified travelling carriage the channel parameter that travelling carriage should use by down channel, and being connected of interruption and travelling carriage;
Step 10: the parameter that the travelling carriage utilization is received is set up professional the connection with target BS.
Adopt travelling carriage changing method of the present invention, down auxiliary at base station controller, travelling carriage can be carried out handover more convenient, more reliably, effectively solves long problem switching time, reduces the handoff rate.
Description of drawings
Fig. 1 is the schematic diagram of the travelling carriage active mobile communication system structure that the inventive method adopted;
Fig. 2 is the flow chart of travelling carriage method of handover in the travelling carriage active mobile communication system of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
The system schematic of the travelling carriage active mobile communication system of employing the inventive method as shown in Figure 1.As shown in the figure, this system comprises base station, paging base station, base station controller, travelling carriage composition, and wherein base station controller is connected to core net with each base station and paging base station.
Introduce initiatively mobile communication system travelling carriage method of handover of travelling carriage of the present invention below in conjunction with accompanying drawing 2, this method comprises following concrete implementation step:
Step 1: travelling carriage keeps being connected with the business of source base station in the scope of source base station;
Step 2: the signal quality that travelling carriage or source base station monitor the downlink or uplink Traffic Channel drops under the handoff threshold; Drop under the handoff threshold if travelling carriage monitors the downlink traffic channel signal quality, then travelling carriage starts switching voluntarily; Drop under the handoff threshold if source base station monitors the reverse link traffic channel signal quality, then source base station notice travelling carriage starts switching;
Step 3: travelling carriage scans the uplink random access channel, tests their interference level, selects the minimum uplink random access channel of interference level;
Step 4: utilize the uplink random access channel base station broadcast inquiry towards periphery burst of selecting, comprise the identity information of travelling carriage in the inquiry burst and switch the sign of inquiry;
Step 5: the base station that receives travelling carriage inquiry burst reports base station controller to the signal quality of the inquiry burst that receives;
Step 6: base station controller is ranked the inquiry burst quality that the base station reports, and selects the best base station of signal quality as target BS;
Step 7: base station controller and its selected target BS are consulted the channel parameter that travelling carriage should use;
Step 8: the channel parameter notification source base station that base station controller should use travelling carriage, and the order source base station disconnects being connected between source base station and the travelling carriage after these parameters notice travelling carriages;
Step 9: source base station is notified travelling carriage the channel parameter that travelling carriage should use by down channel, and being connected of interruption and travelling carriage;
Step 10: the parameter that the travelling carriage utilization is received is set up professional the connection with target BS.
Should be noted that all any improved methods that does not break away from inventive concept all belong to protection scope of the present invention, the concrete protection range of the present invention is defined by the claims.
Claims (1)
1. travelling carriage travelling carriage method of handover in the mobile communication system initiatively, at travelling carriage initiatively in the mobile communication system, the base station is the beacon channel signal of emission always not, and this method comprises the steps:
Step 1: travelling carriage keeps being connected with the business of source base station in the scope of source base station;
Step 2: the signal quality that travelling carriage or source base station monitor the downlink or uplink Traffic Channel drops under the handoff threshold; Drop under the handoff threshold if travelling carriage monitors the downlink traffic channel signal quality, then travelling carriage starts switching voluntarily; Drop under the handoff threshold if source base station monitors the reverse link traffic channel signal quality, then source base station notice travelling carriage starts switching;
Step 3: travelling carriage scans the uplink random access channel, tests their interference level, selects the minimum uplink random access channel of interference level;
Step 4: utilize the uplink random access channel base station broadcast inquiry towards periphery burst of selecting, comprise the identity information of travelling carriage in the inquiry burst and switch the sign of inquiry;
Step 5: the base station that receives travelling carriage inquiry burst reports base station controller to the signal quality of the inquiry burst that receives;
Step 6: base station controller is ranked the inquiry burst quality that the base station reports, and selects the best base station of signal quality as target BS;
Step 7: base station controller and its selected target BS are consulted the channel parameter that travelling carriage should use;
Step 8: the channel parameter notification source base station that base station controller should use travelling carriage, and the order source base station disconnects being connected between source base station and the travelling carriage after these parameters notice travelling carriages;
Step 9: source base station is notified travelling carriage the channel parameter that travelling carriage should use by down channel, and being connected of interruption and travelling carriage;
Step 10: the parameter that the travelling carriage utilization is received is set up professional the connection with target BS.
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| CN2008100556394A CN101217815B (en) | 2008-01-04 | 2008-01-04 | A cross-regional shifting method of traveling carriage initiative mobile communication system |
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| CN2008100556394A CN101217815B (en) | 2008-01-04 | 2008-01-04 | A cross-regional shifting method of traveling carriage initiative mobile communication system |
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| CN101217815B true CN101217815B (en) | 2010-09-01 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101883406B (en) * | 2009-05-07 | 2015-04-08 | 株式会社Ntt都科摩 | Switching method, mobile terminal and base station |
| KR20150103259A (en) * | 2013-01-25 | 2015-09-09 | 후지쯔 가부시끼가이샤 | Handover method based on uplink signal, method for configuring uplink signal, user equipment, and base station |
| CN105813028A (en) * | 2014-12-30 | 2016-07-27 | 海能达通信股份有限公司 | Quick-recognition base station active switching trunking communication method and terminal |
| CN110035451B (en) * | 2018-01-11 | 2020-08-28 | 惠州Tcl移动通信有限公司 | Communication switching method and communication switching device |
| CN109686070B (en) * | 2018-12-19 | 2020-08-11 | 积成电子股份有限公司 | Terminal automatic debugging method of electricity consumption information acquisition system, medium and equipment thereof |
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| CN1212113A (en) * | 1996-02-23 | 1999-03-24 | 诺基亚电信公司 | Handover in mobile communication system |
| CN1273497A (en) * | 1999-05-11 | 2000-11-15 | 日本无线株式会社 | Trans-zone switchover method for pHS personal station |
| CN1399431A (en) * | 2001-07-25 | 2003-02-26 | 华为技术有限公司 | Hard switching method for service frequency in mobile communication |
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2008
- 2008-01-04 CN CN2008100556394A patent/CN101217815B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1212113A (en) * | 1996-02-23 | 1999-03-24 | 诺基亚电信公司 | Handover in mobile communication system |
| CN1273497A (en) * | 1999-05-11 | 2000-11-15 | 日本无线株式会社 | Trans-zone switchover method for pHS personal station |
| CN1399431A (en) * | 2001-07-25 | 2003-02-26 | 华为技术有限公司 | Hard switching method for service frequency in mobile communication |
Non-Patent Citations (1)
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| 张威.GSM网络优化-原理与工程.人民邮电出版社,2003,第177页倒数第6行，第178页6.11.3节BSC内切换部分. * |
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Effective date of registration: 20190912 Address after: 430073 Hubei province Wuhan Dongxin East Lake high tech Development Zone, Road No. 5 Patentee after: Wuhan Hongxin Communication Technology Co., ltd. Address before: 100085, beacon building, No. 5-3, East Road, Beijing, Haidian District Patentee before: Beifang Fenghuo Tech Co., Ltd., Beijing |
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Address after: 430205 Hubei city of Wuhan province Jiangxia Hidden Dragon Island Tan lake two Road No. 1 Patentee after: CITIC Mobile Communication Technology Co., Ltd Address before: 430073 Hubei province Wuhan Dongxin East Lake high tech Development Zone, Road No. 5 Patentee before: Wuhan Hongxin Telecommunication Technologies Co.,Ltd. |
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Address after: 430205 No.1 tanhu 2nd Road, Canglong Island, Jiangxia District, Wuhan City, Hubei Province Patentee after: CITIC Mobile Communication Technology Co.,Ltd. Address before: 430205 No.1 tanhu 2nd Road, Canglong Island, Jiangxia District, Wuhan City, Hubei Province Patentee before: CITIC Mobile Communication Technology Co., Ltd |