CN1507291A - Method for change-over between long distance and short distance radio mobile terminal - Google Patents
Method for change-over between long distance and short distance radio mobile terminal Download PDFInfo
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- CN1507291A CN1507291A CNA021555052A CN02155505A CN1507291A CN 1507291 A CN1507291 A CN 1507291A CN A021555052 A CNA021555052 A CN A021555052A CN 02155505 A CN02155505 A CN 02155505A CN 1507291 A CN1507291 A CN 1507291A
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Abstract
The method for change-over between long distance and short distance radio mobile terminal is one kind of decision method including double terminal access and change-over threshold plus time threshold, that is, the access threshold and exit threshold are in different values and the change-over must meet the time threshold requirement. The whole change-over process includes three steps of monitoring, judgment and change-over. The change-over includes the change-over of mobile terminal from short distance communication to long distance communication and the change-over of mobile terminal from long distance communication to short distance communication as well as change-over between subzones of different short distances. The technology of the present invention realizes the seamless change-over without vibration produced.
Description
Technical field
The present invention relates to a kind of wireless communication technology, refer to that especially a kind of wireless length apart from the implementation method that portable terminal switches, belongs to moving communicating field.
Background technology
In wireless length in communication system, the terminal equipment that system requirements is in system's covering not only will keep communicating apart from network with long, also to when entering short-distance wireless local area network (LAN) coverage, terminal be transformed into automatically in the short-distance wireless local area network (LAN) simultaneously, this wants constantly the signal strength signal intensity of Serving cell and adjacent cell to be measured with regard to requiring portable terminal, and the result of measurement will be as the foundation of switch decision.
Wireless length guarantees simultaneously apart from communication system: no matter can both be discerned by the other-end in the network apart from coverage or the terminal in the short distance coverage long, and can insert different short distance LAN through authentication by different priority for the user of different stage.
For wireless length apart from communication system, a core problem is exactly the decision problem that terminal equipment switches between two kinds of networks, the general at present changing method of simple gate limit that adopts realizes that the threshold value that both inserted, withdraws from WLAN (WLAN (wireless local area network)) is set to same numerical value.As shown in Figure 1, when portable terminal enters the short distance network or enters long during apart from network from the short distance network apart from network from long, portable terminal constantly detects the signal strength signal intensity of the network that enters, and when detected signal strength signal intensity during greater than set handoff threshold, portable terminal will initiate to switch.The benefit that this use simple gate limit is switched is that software design is simple relatively, but its maximum shortcoming is: if the user moves at the edge in WLAN coverage territory, may cause client constantly between WLAN and non-wlan network, to switch so, client is produced switch vibration, if the frequency of switching is too frequent, will cause can't using of portable terminal and network end server.
Summary of the invention
For overcoming the defective of above-mentioned prior art; the implementation method that the object of the present invention is to provide a kind of wireless length to switch apart from portable terminal; it can guarantee in wireless length in communication system; when automatically switch in portable terminal turnover short distance overlay area; not only Business Stream can not interrupt; switch vibration nor can cause, protected portable terminal and network end server effectively.
For achieving the above object, the present invention is by the following technical solutions: the implementation method that a kind of wireless length is switched apart from portable terminal, it is characterized in that: when the terminal of wireless length in communication system inserts with handover operation, the judgement mode of double threshold+time threshold is adopted in the judgement of switching, promptly the detection threshold of Jie Ruing is two different numerical value with withdrawing from thresholding, require the detected signal strength signal intensity of portable terminal simultaneously after reaching the access detection threshold or withdrawing from thresholding, also must satisfy time threshold; This method comprises detection, judges and switches three steps, and its detailed process is as follows:
A. monitoring: portable terminal is in when start or monitor the short distance network all the time and long signal strength signal intensity apart from network when length is in network coverage;
B. judge: when the detected short distance network signal of portable terminal when inserting thresholding and satisfying time threshold, portable terminal automatically switches to the short distance network; When the detected short distance network signal of portable terminal when withdrawing from thresholding and satisfying time threshold, portable terminal automatically switch also insert long apart from network.
C. switch: portable terminal is set up suitable network and is connected according to the result who judges.
The signal strength signal intensity of the detection threshold of described access is greater than the signal strength signal intensity that withdraws from thresholding.
Described time threshold can be to reach the number of times that inserts thresholding or withdraw from thresholding in one period sampling time, also can be the time length of signal stabilization.
Described switching comprises that portable terminal is switched to long distance from short-range communication communicates by letter, also comprises portable terminal is switched to short-range communication from long apart from communication, or the switching between the different short distances sub-district.
Described access can be chosen as authentication and insert, and both the user inserted by the priority authentication of short distance LAN earlier again.
Because the present invention has adopted above technical scheme, so have the following advantages:
1. when portable terminal enters the wireless short-range local area network (LAN) that is allowed to, can preferentially switch in the short-distance wireless network automatically, and guarantee that Business Stream is not interrupted, realize seamless switching;
2. when the user left the short-distance wireless network, it was long in network to guarantee that portable terminal automatically switches to, and guarantees that Business Stream is not interrupted, and realizes seamless switching;
3. can automatically switch to new Serving cell when a Serving cell that leaves the short-distance wireless local area network (LAN) as the user enters another Serving cell, and guarantee that Business Stream is not interrupted, realize seamless switching;
4. in handoff procedure, guarantee the not interrupted while of Business Stream, avoiding switching vibration, protecting portable terminal and network end server effectively.
Description of drawings
Fig. 1 is the schematic diagram of simple gate limit for handoff threshold
Fig. 2 is the schematic diagram of double threshold for handoff threshold
Fig. 3 is the flow chart of access network behind the mobile terminal-opening
Fig. 4 is the switching schematic diagram of portable terminal at different short distance Serving cells
Embodiment
In wireless length in communication system, when portable terminal enters the short distance network or enters long apart from network and when a short distance sub-district enters another short distance sub-district from the short distance network apart from network from long, portable terminal constantly detects the signal strength signal intensity of the network that enters always, when detected signal strength signal intensity is enough big, portable terminal will initiate to switch.Produce when switching in short distance network coverage border district for fear of mobile terminal device and switch vibration, the present technique handoff threshold is set to the mode of double threshold+time threshold.
As shown in Figure 2, double threshold during switching is that the detection threshold that inserts is two different numerical value with withdrawing from thresholding, and the signal strength signal intensity of the detection threshold that inserts is greater than the signal strength signal intensity that withdraws from thresholding, in the detection threshold that inserts with withdraw from enough buffer areas have been arranged between the thresholding, effectively avoided switching the generation of vibration like this.When handoff threshold satisfies the requirement of double threshold, the detected signal strength signal intensity of portable terminal also must satisfy the requirement of time threshold, time threshold both can be to reach the number of times that inserts thresholding or withdraw from thresholding in one period sampling time, also can be the time length of signal stabilization.
Being four kinds below typically is arranged in wireless length and inserts process with switching judging apart from the portable terminal of communication system system:
(1) as shown in Figure 3, during mobile terminal-opening, the process of carrying out the network insertion judgement according to the present invention is as follows:
1. monitoring: behind mobile terminal-opening, whether terminal at first detects has short distance to insert signal, if having then monitor the signal strength signal intensity of short distance network, changes determining step over to; Insert signal if detect short distance, then search is grown apart from base station signal, by growing apart from the base station access network.
2. judge: as detect short distance access signal, whether the signal strength signal intensity of at first judging the short distance network that monitors is higher than the access thresholding and satisfies time threshold, the criterion of time threshold can be that the short distance network signal intensity reaches the number of times of access thresholding above predetermined percentage (as 80%) in the fixed sample number of times (as 10 times), perhaps continue for some time (as 10 seconds) and reach the access thresholding, as be higher than the access threshold value and satisfy time threshold, network is if selected authentication service, next then to carry out the priority authentication, the user of different stage can be inserted different short distance LAN by different priority by authentication, if authentication is passed through, change switch step over to; If reaching the requirement that inserts thresholding or reach, the signal strength signal intensity of the detected short distance network of portable terminal do not insert the requirement that thresholding does not but satisfy time threshold, next judge whether detected short distance network signal is lower than the requirement of withdrawing from thresholding and satisfying time threshold, be lower than the requirement of withdrawing from thresholding and satisfying time threshold as signal, then portable terminal will be linked into long apart from network; As be higher than to withdraw from thresholding or be lower than and withdraw from thresholding but do not satisfy time threshold, then to continue to detect to network signal.In network selecting under the situation of authentication service, reached as the signal strength signal intensity of the detected short distance network of portable terminal and to have inserted the requirement of thresholding and time threshold, but failed by authentication, also to insert long apart from network.
3. switch: portable terminal starts the inner short distance network equipment, sets up the short distance network and connects.
(2) when portable terminal entered in the short distance network coverage from length apart from network, whole handoff procedure also can be divided into monitoring, judges and switch three steps, and its detailed process is as follows:
1. monitoring: portable terminal is monitored the short distance network signal intensity all the time, when the short distance network signal intensity that monitors reaches the access thresholding, changes determining step over to.
2. judge: portable terminal continues monitoring short distance network signal intensity, judge whether to satisfy time threshold, the standard of judging can be that the short distance network signal intensity reaches the number of times of access thresholding above predetermined percentage (as 80%) in the fixed sample number of times (as 10 times), perhaps continue for some time (as 10 seconds) and reach the access thresholding, as not satisfying time threshold, then return monitoring step; As satisfied time threshold and do not selected authentication service, then after judging satisfied access thresholding, directly change switch step over to; If selected authentication service, then after time threshold is satisfied in judgement, also need carry out authentication, if authentication is passed through, change switch step over to, with the user of different stage by the different different short distance LAN of priority access; If, then do not return monitoring step by authentication.
3. switch: the inner short distance network equipment of portable terminal startup, set up the short distance network and connect, close length apart from the network equipment, end length and connect apart from network.
(3) leave the short distance network coverage when portable terminal, enter longly during apart from network, the process of switching also can be divided into monitoring, judgement, three steps of switching, and its detailed process is as follows:
1. monitoring: portable terminal is monitored the short distance network signal intensity all the time, when the short distance network signal intensity that monitors reaches when withdrawing from thresholding, changes determining step over to.
2. judge: portable terminal continues monitoring short distance network signal intensity, judge whether to satisfy time threshold, the standard of judging can be that the short distance network signal intensity reaches the number of times that withdraws from thresholding and surpasses predetermined percentage (as 80%) in the fixed sample number of times (as 10 times), perhaps continues for some time (as 10 seconds) and reaches and withdraw from thresholding.If satisfy time threshold, then forward switch step to, otherwise turn back to monitoring step.
3. switch: portable terminal starts inner length apart from the network equipment, sets up length and connects apart from network, closes the short distance network equipment, ends the short distance network and connects.
(4) the present invention can also realize the switching of portable terminal between different short distances sub-district:
Different IP addresses is used in different short distance sub-districts.As shown in Figure 4, the user is during from a short distance sub-district WLAN1 to another short distance sub-district WLAN2, be responsible for grasping user's information this moment by the server of short distance sub-district WLAN1, delete this user's information so that in time notify all short distance access points in the WLAN1 short distance sub-district, abandon management to this user, and the information of notifying a certain short distance access point in WLAN2 short distance sub-district to add this user, begin management to this user.
Concrete handoff procedure and length are similar apart from the handoff procedure of network, also are divided into monitoring, judgement, switch three steps, only realize on the server of WLAN rather than realize on portable terminal.
When portable terminal switched to WLAN2 short distance sub-district by WLAN1 short distance sub-district, its process was as follows:
1. monitoring: the power of the wireless signal that the server of WLAN1 short distance sub-district monitoring portable terminal sends, judge whether to reach the thresholding that withdraws from of the service of termination, when the wireless signal strength that monitors reaches when withdrawing from thresholding, change determining step over to.
2. judge: the server of WLAN1 short distance sub-district continues the monitoring wireless network signal strength signal intensity, judges whether to satisfy time threshold.The standard of judging can be that wireless signal strength reaches the number of times that withdraws from thresholding and surpasses predetermined percentage (as 80%) in the fixed sample number of times (as 10 times), perhaps continues for some time (as 10 seconds) and reaches and withdraw from thresholding.If satisfy time threshold, then forward switch step to, otherwise turn back to monitoring step.
3. switch: the information that a certain short distance access point in notice WLAN2 short distance sub-district adds this portable terminal, begin management to this portable terminal, the information that all short distance access points in the notice WLAN1 short distance sub-district are deleted this portable terminal is abandoned the management to this portable terminal.
The user can define the priority level of automatic switchover as required voluntarily, for example: expense, transmission rate, stability etc.In addition, the user also can select not use short-range communication in the short distance coverage, and selects long apart from communication.
Claims (5)
1, a kind of wireless length is apart from the implementation method of portable terminal switching, it is characterized in that: when the terminal of wireless length in communication system inserts with handover operation, the judgement mode of double threshold+time threshold is adopted in the judgement of switching, promptly the detection threshold of Jie Ruing is two different numerical value with withdrawing from thresholding, require the detected signal strength signal intensity of portable terminal simultaneously after reaching the access detection threshold or withdrawing from thresholding, also must satisfy time threshold; This method comprises detection, judges and switches three steps, and its detailed process is as follows:
A. monitoring: portable terminal is in when start or monitor the short distance network all the time and long signal strength signal intensity apart from network when length is in network coverage;
B. judge: when the detected short distance network signal of portable terminal when inserting thresholding and satisfying time threshold, portable terminal automatically switches to the short distance network; When the detected short distance network signal of portable terminal when withdrawing from thresholding and satisfying time threshold, portable terminal automatically switch also insert long apart from network.
C. switch: portable terminal is set up suitable network and is connected according to the result who judges.
2, wireless length as claimed in claim 1 is apart from the implementation method of portable terminal switching, and it is characterized in that: the signal strength signal intensity of the detection threshold of described access is greater than the signal strength signal intensity that withdraws from thresholding.
3, wireless length as claimed in claim 1 is characterized in that apart from the implementation method that portable terminal switches: described time threshold can be to reach the number of times that inserts thresholding or withdraw from thresholding in one period sampling time, also can be the length of signal stabilization time.
4, wireless length as claimed in claim 1 is apart from the implementation method of portable terminal switching, it is characterized in that: described switching comprises that portable terminal is switched to long distance from short-range communication communicates by letter, also comprise portable terminal is switched to short-range communication from long apart from communication, or the switching between the different short distances sub-district.
5, as claim 1 or the described wireless length of claim 2 apart from the implementation method that portable terminal switches, it is characterized in that: described access can select authentication to insert, and both the user inserted by the priority authentication of short distance LAN earlier again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021555052A CN1293768C (en) | 2002-12-09 | 2002-12-09 | Method for change-over between long distance and short distance radio mobile terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB021555052A CN1293768C (en) | 2002-12-09 | 2002-12-09 | Method for change-over between long distance and short distance radio mobile terminal |
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| CN1507291A true CN1507291A (en) | 2004-06-23 |
| CN1293768C CN1293768C (en) | 2007-01-03 |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007109941A1 (en) * | 2006-03-29 | 2007-10-04 | Huawei Technologies Co., Ltd. | Method and application of reducing traffic interrupt of a terminal during ps handover procedure of mobile communication |
| CN100461961C (en) * | 2006-04-21 | 2009-02-11 | 华为技术有限公司 | Method for controlling switch in long-distance deductive system |
| WO2010108375A1 (en) * | 2009-03-27 | 2010-09-30 | 中兴通讯股份有限公司 | Method and apparatus for supporting femto-base station access and switching and switching terminal |
| CN101909081A (en) * | 2010-07-28 | 2010-12-08 | 康佳集团股份有限公司 | Method and device for network connection of network television |
| CN102316471A (en) * | 2011-08-25 | 2012-01-11 | 华为技术有限公司 | Measuring method of network coverage, terminal and base station thereof |
| CN102387568A (en) * | 2010-09-03 | 2012-03-21 | 中国电信股份有限公司 | Method and system for mobile terminal capable of automatically selecting communication mode |
| CN102740414A (en) * | 2011-03-31 | 2012-10-17 | 中国移动通信集团公司 | Method for selecting communication network, terminal, and network-side equipment |
| CN102955920A (en) * | 2011-08-26 | 2013-03-06 | 宏碁股份有限公司 | Computer system with protection mode control effect |
| CN103947258A (en) * | 2011-09-29 | 2014-07-23 | 三星电子株式会社 | Mobile communication system and method of information processing for improving user experience in the mobile communication system |
| CN104246576A (en) * | 2012-01-30 | 2014-12-24 | 徕卡显微系统复合显微镜有限公司 | Microscope with wireless radio interface and microscope system |
| CN104285476A (en) * | 2012-05-01 | 2015-01-14 | 高通股份有限公司 | Systems and methods for configuring connectivity in wireless network |
| CN104871578A (en) * | 2012-12-19 | 2015-08-26 | 瑞典爱立信有限公司 | UE accessibility indication for WI-FI integration in RAN |
| CN104902527A (en) * | 2015-06-29 | 2015-09-09 | 小米科技有限责任公司 | Communication network switching method and communication network switching device |
| CN111699720A (en) * | 2018-03-02 | 2020-09-22 | 松下知识产权经营株式会社 | Device, system and communication method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100311506B1 (en) * | 1998-11-04 | 2001-11-15 | 서평원 | HandOff Control Method in Mobile Communication System |
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2002
- 2002-12-09 CN CNB021555052A patent/CN1293768C/en not_active Expired - Fee Related
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2007109941A1 (en) * | 2006-03-29 | 2007-10-04 | Huawei Technologies Co., Ltd. | Method and application of reducing traffic interrupt of a terminal during ps handover procedure of mobile communication |
| CN100461961C (en) * | 2006-04-21 | 2009-02-11 | 华为技术有限公司 | Method for controlling switch in long-distance deductive system |
| WO2010108375A1 (en) * | 2009-03-27 | 2010-09-30 | 中兴通讯股份有限公司 | Method and apparatus for supporting femto-base station access and switching and switching terminal |
| CN101909081A (en) * | 2010-07-28 | 2010-12-08 | 康佳集团股份有限公司 | Method and device for network connection of network television |
| CN102387568B (en) * | 2010-09-03 | 2016-06-22 | 中国电信股份有限公司 | A kind of mobile terminal automatically selects the method and system of communication mode |
| CN102387568A (en) * | 2010-09-03 | 2012-03-21 | 中国电信股份有限公司 | Method and system for mobile terminal capable of automatically selecting communication mode |
| CN102740414A (en) * | 2011-03-31 | 2012-10-17 | 中国移动通信集团公司 | Method for selecting communication network, terminal, and network-side equipment |
| CN102316471A (en) * | 2011-08-25 | 2012-01-11 | 华为技术有限公司 | Measuring method of network coverage, terminal and base station thereof |
| CN102955920A (en) * | 2011-08-26 | 2013-03-06 | 宏碁股份有限公司 | Computer system with protection mode control effect |
| US9973995B2 (en) | 2011-09-29 | 2018-05-15 | Samsung Electronics Co., Ltd. | Mobile communication system and method of information processing for improving user experience in the mobile communication system |
| CN103947258A (en) * | 2011-09-29 | 2014-07-23 | 三星电子株式会社 | Mobile communication system and method of information processing for improving user experience in the mobile communication system |
| CN103947258B (en) * | 2011-09-29 | 2018-10-09 | 三星电子株式会社 | Mobile communication system and information processing method for improving user experience in mobile communication system |
| CN104246576A (en) * | 2012-01-30 | 2014-12-24 | 徕卡显微系统复合显微镜有限公司 | Microscope with wireless radio interface and microscope system |
| US9859939B2 (en) | 2012-01-30 | 2018-01-02 | Leica Microsystems Cms Gmbh | Microscope with wireless radio interface and microscope system |
| CN104246576B (en) * | 2012-01-30 | 2018-07-31 | 徕卡显微系统复合显微镜有限公司 | Microscope with wireless interface and microscopic system |
| CN104285476A (en) * | 2012-05-01 | 2015-01-14 | 高通股份有限公司 | Systems and methods for configuring connectivity in wireless network |
| CN104871578A (en) * | 2012-12-19 | 2015-08-26 | 瑞典爱立信有限公司 | UE accessibility indication for WI-FI integration in RAN |
| CN104871578B (en) * | 2012-12-19 | 2018-11-09 | 瑞典爱立信有限公司 | Method, user equipment and network entity for the integrated UE accessibilities instructions of WI-FI in the ran |
| US10412666B2 (en) | 2012-12-19 | 2019-09-10 | Telefonaktiebolabet Lm Ericsson (Publ) | UE accessibility indication for WI-FI integration in RAN |
| CN104902527A (en) * | 2015-06-29 | 2015-09-09 | 小米科技有限责任公司 | Communication network switching method and communication network switching device |
| CN111699720A (en) * | 2018-03-02 | 2020-09-22 | 松下知识产权经营株式会社 | Device, system and communication method |
| CN111699720B (en) * | 2018-03-02 | 2023-08-15 | 松下电器（美国）知识产权公司 | Communication device, communication system, and communication method |
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