CN102685837A - Terminal switching method and system - Google Patents
Terminal switching method and system Download PDFInfo
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- CN102685837A CN102685837A CN2011100587712A CN201110058771A CN102685837A CN 102685837 A CN102685837 A CN 102685837A CN 2011100587712 A CN2011100587712 A CN 2011100587712A CN 201110058771 A CN201110058771 A CN 201110058771A CN 102685837 A CN102685837 A CN 102685837A
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- terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/0085—Hand-off measurements
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Abstract
The invention discloses a terminal switching method and a system. The terminal switching method and the system are used for solving technical problems that the achieving process is complicated, the efficiency is low, and switching cannot be initiated through terminals in the existing switching method in the scene of nomadic or local wireless data access. According to the terminal switching method and the system, terminals measure signal quality of serving cells based on own or network configured measurement thresholds. If the signal quality of serving cells is lower than measurement thresholds, adjacent wireless access equipment is scanned; and if signal quality of serving cells is higher than measurement thresholds, terminals access automatically in target cells, and contexts of source cells are released simultaneously. According to the terminal switching method and the system, the switching process of terminals is improved, terminal state variation is simpler, cost for achieving wireless access equipment is reduced, and accordingly, requirements of the scene of nomadic or local wireless data access are well met.
Description
Technical field
The present invention relates to wireless communication technology field, relate in particular to the method and system that switch at the terminal in a kind of wireless access system.
Background technology
Along with the large scale deployment of 3G network, mobile Internet data is professional to be increased fast.The development of mobile Internet has driven the growth of intelligent terminal, and the growth of intelligent terminal has further stimulated the demand of mobile Internet again.Latest prediction shows that the mobile data services amount will grow continuously and fast in following 10 years.The data service ratio increases gradually in the carrier network, and it is professional to have influenced the conventional telecommunications level.
Most in addition mobile data services mainly occur in indoor and the focus environment, are presented as that nomadic/local wireless inserts scene.Indoor and hot spot data service feature for the user be generally fixing perhaps very low speed move, less demanding to mobility; On the other hand, it is professional that data service is mainly IP-based the Internet Internet, more single to the requirement of service quality (QoS), and far below the requirement of carrier class business to QoS.Traditional cell mobile communication systems mainly towards be high-speed mobile, the professional design of the carrier class of seamless switching, when it carried big flow low speed IP data packet traffic, efficient was on the low side, cost is too high.How to satisfy following huge indoor data traffic requirement and become the significant challenge that cell mobile communication systems faces.Honeycomb mobile operator urgently finds out low cost, and high-throughput is fit to the solution that nomadic/local wireless data insert.
In order to better meet the demand of user to the wireless connections bandwidth, 3GPP Long Term Evolution (LTE) project is the new technology development project of the maximum of 3GPP startup in recent years.Evolution technology as existing wireless standard; LTE not only can provide higher data rate and capacity, bigger coverage; Can also reduce the professional delay and the operation cost of system; Help operator and release more real-times, high-rate service, thereby attract more high-end user.But LTE still is to high-speed mobile, the professional design of the carrier class of seamless switching, and its protocol stack relative complex, cost is higher, lacks the optimization process that inserts to nomadic/local wireless data.
Summary of the invention
In view of this; Main purpose of the present invention is to provide a kind of terminal switching method and system that inserts scene to nomadic/local wireless; Being used to solve nomadic/local wireless data inserts under the scene; Existing changing method implementation procedure is complicated, inefficient, can't be initiated the technical problem of switching by the terminal.
For achieving the above object, technical scheme of the present invention is achieved in that
The method that switch at a kind of terminal, this method comprises:
The terminal judges whether and need measure adjacent radio reception device according to measuring thresholding, when the signal quality of Serving cell when measuring thresholding, adjacent radio reception device is measured;
Said terminal judges whether need to carry out to switch according to handoff threshold, when the signal quality of adjacent radio reception device greater than handoff threshold, switching flow is initiated to adjacent radio reception device in said terminal.
Further, said method also comprises:
When access service sub-district, said terminal, send said measurement thresholding and handoff threshold by the radio reception device under the Serving cell to said terminal, said terminal receives and preserves said measurement thresholding and handoff threshold; Or said measurement thresholding and handoff threshold are the measurement thresholding and the handoff threshold of said terminal default setting.
Further, said radio reception device adopts the mode of system broadcasts will measure thresholding and handoff threshold sends to all interior terminals of service range, or will measure thresholding and handoff threshold sends to the terminal through proprietary signaling according to the ability at terminal.
Further, said terminal also comprises before carrying out switching judging:
Said terminal obtains the information of adjacent radio reception device through scanning, and carries out signal quality measured to the adjacent radio reception device that scans; Or
By the information that the radio reception device under the Serving cell sends adjacent radio reception device to said terminal, said terminal is carried out signal quality measured according to the information of the adjacent radio reception device that receives to said adjacent radio reception device;
Said terminal according to the signal quality that the measurement result of adjacent radio reception device is judged adjacent radio reception device whether greater than said handoff threshold; If greater than; Then from signal quality greater than selecting one the adjacent radio reception device of said handoff threshold as the Target Wireless access device, otherwise do not do selection.
Further; Said radio reception device adopts the information that the mode of system broadcasts will said adjacent radio reception device to send to all interior terminals of service range, or through proprietary signaling the information of said adjacent radio reception device is sent to the terminal according to the ability at terminal.
Further, said terminal to the method for adjacent radio reception device initiation switching flow is:
The flow process of current service cell is initiated to leave in said terminal, discharges related context;
Access procedure is initiated at said terminal, is linked into said adjacent radio reception device.
Based on the embodiment of the invention, the present invention also proposes the system that switch at a kind of terminal, and this system comprises:
Measurement module is used for the signal quality of server sub-district is measured, and whether the signal quality of judging Serving cell less than measuring thresholding, when the signal quality of Serving cell when measuring thresholding, adjacent radio reception device is measured;
Acquisition module is used to obtain the information of measuring thresholding, handoff threshold and/or adjacent radio reception device;
The switching judging module is used at the signal quality of Serving cell when measuring thresholding, according to the signal quality that the measurement result of adjacent radio reception device signal quality is judged adjacent radio reception device whether greater than handoff threshold;
Handover module when being used for signal quality at adjacent radio reception device greater than handoff threshold, is initiated switching flow to adjacent radio reception device.
Further, said radio reception device comprises:
Sending module sends to the terminal when being used at the terminal access service sub-district and measures thresholding and handoff threshold, and/or the information of sending adjacent radio reception device;
AM access module is used for the switching flow that response terminal is initiated, and carries out the terminal context and discharges, and accomplish the access process of said terminal to local terminal.
Further, measurement thresholding and handoff threshold that said acquisition module obtains send to said acquisition module by Serving cell, or obtain default value by said acquisition module from this locality.
Among the present invention; The terminal is in connected state always, through the measurement thresholding of self or network configuration the signal quality of Serving cell is measured, if the signal quality of Serving cell is lower than the measurement thresholding; Then the information according to adjacent radio reception device judges whether that needs switch; If the Target cell signal quality exceeds handoff threshold, then the terminal is initiatively inserted at Target cell, simultaneously the context of source of release sub-district.The present invention has improved the switching flow at terminal, and it is more simple to make that the SOT state of termination changes, and has reduced the realization cost of radio reception device, thereby better meets the demand that nomadic/local wireless data insert scene.
Description of drawings
Fig. 1 wireless access system network topological diagram;
Fig. 2 is the measurement thresholding of base station transmission and the flow process that handoff threshold is carried out measurement and initiated to switch for the embodiment of the invention 1 terminal according to radio reception device;
Fig. 3 is that the flow process of measuring and initiating switching is carried out according to the measurement thresholding and the handoff threshold of acquiescence in the embodiment of the invention 2 terminals;
Fig. 4 initiates to measure and the switching processing flow chart behind the link failure between discovery of the embodiment of the invention 3 terminals and the radio reception device.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, below lift embodiment and with reference to accompanying drawing, to further explain of the present invention.
Embodiment 1:
This embodiment describes this flow process below in conjunction with Fig. 2 for the terminal is the measurement thresholding of base station transmission and the flow process that handoff threshold is carried out measurement and initiated to switch according to radio reception device:
Step 201, terminal A have got into the coverage of radio reception device A, initiate the access request, and are linked into radio reception device A, and after terminal A accomplished and inserts, radio reception device A sends the measurement thresholding and handoff threshold is given terminal A;
Radio reception device can adopt the mode of system broadcasts will measure thresholding and handoff threshold and send to all terminals in the service range, also can will measure thresholding and handoff threshold sends to the terminal through proprietary signaling according to the ability at terminal.
Step 202, terminal A preserve it after receiving the measurement thresholding and handoff threshold of radio reception device A transmission in this locality;
Step 203, terminal A move to the covering edge of radio reception device A in the coverage of radio reception device A; The signal quality that detects radio reception device A as terminal A is during less than said measurement thresholding; Then terminal A initiates the scanning to the adjacent area radio reception device; Whether there is adjacent radio reception device to exist through scanning discovery,, also needs the signal quality of adjacent radio reception device is measured if exist;
If the A sweep of step 204 terminal is to there being adjacent radio reception device to exist; Arrive radio reception device B like terminal A sweep; Whether the signal quality of then judging the adjacent radio reception device B that measures is greater than handoff threshold; If greater than handoff threshold, as the Target Wireless access device, and initiate to switch adjacent radio reception device B at the terminal.If terminal A measures the signal quality of a plurality of adjacent radio reception devices simultaneously greater than handoff threshold, then the terminal selects an only adjacent radio reception device as the Target Wireless access device, and initiates to switch.
Step 205, terminal A are in handoff procedure; At first initiate to leave the flow process of radio reception device A; Radio reception device A and the core network element that connects with radio reception device A will be relevant with terminal A contextual information release, terminal A initiation access procedure is linked into radio reception device B then.
Embodiment 2:
This embodiment is that the flow process of measuring and initiating switching is carried out according to the measurement thresholding and the handoff threshold of acquiescence in the terminal, below in conjunction with Fig. 3 this flow process is described:
Step 301, terminal A have got into the coverage of radio reception device A; Initiation is linked into radio reception device A; After terminal 1 is accomplished and is inserted; Radio reception device A sends the information of adjacent radio reception device alternatively and gives the terminal, and radio reception device can adopt the mode of system broadcasts to send, and also can the information of adjacent radio reception device be sent to the terminal through proprietary signaling; The information of said adjacent radio reception device comprises radio reception device sign, access parameter information such as (the for example frequency of neighbor cell, bandwidth etc.) at least.
If step S302 terminal A receives the information of the adjacent radio reception device of radio reception device A transmission, it is preserved in this locality.
Step S303, terminal A move to the covering edge of radio reception device A in the coverage of radio reception device A; The signal quality that detects radio reception device A as terminal A is during less than the measurement thresholding of terminal A default setting, and terminal A can initiate the measurement to the adjacent area radio reception device according to the information of the adjacent radio reception device of preserving.
If the information of the adjacent radio reception device of step S304 terminal A comprises radio reception device B; Whether the signal quality of then judging the adjacent radio reception device B that measures is greater than handoff threshold; If greater than handoff threshold; Terminal A as the Target Wireless access device, and initiate to switch adjacent radio reception device B.If terminal A measures the signal quality of a plurality of adjacent radio reception devices simultaneously greater than handoff threshold, then the terminal selects an only adjacent radio reception device as the Target Wireless access device, and initiates to switch.
Step S305, terminal A are in handoff procedure; At first initiate to leave the flow process of radio reception device A; Radio reception device A and the core network element that connects with radio reception device A will be relevant with terminal A contextual information delete, terminal A initiation access procedure is linked into radio reception device B then.
Embodiment 3:
This embodiment is for initiating measurement and switching processing flow chart behind the link failure between terminal discovery and the radio reception device, and concrete steps combine Fig. 4 to be elaborated;
Step 401, terminal A have got into the coverage of radio reception device A; Initiation is linked into radio reception device A; After terminal A accomplishes and inserts; Radio reception device send to be measured the information that thresholding and handoff threshold give the terminal and/or send adjacent radio reception device and is given terminal A; The information that radio reception device can adopt the mode of system broadcasts will measure thresholding and handoff threshold and/or adjacent radio reception device sends to all terminals in the service range, also can send to the terminal through proprietary signaling according to the information that the ability at terminal will be measured thresholding and handoff threshold and/or adjacent radio reception device.
Step 402, terminal A preserve it after receiving the information of measurement thresholding that radio reception device A sends and handoff threshold and/or adjacent radio reception device in this locality;
Step 403, terminal A when the coverage of radio reception device A, detect and radio reception device A between link failure, then terminal A initiates the scanning to the adjacent area radio reception device.
If step 404 terminal A scans radio reception device B at this moment; The handoff threshold of the acquiescence whether signal quality of then judging the adjacent radio reception device B measure is provided with greater than the handoff threshold that receives or terminal A; If greater than handoff threshold; Then as the Target Wireless access device, and initiate to switch adjacent radio reception device B at the terminal.If terminal A measures the signal quality of a plurality of adjacent radio reception devices simultaneously greater than handoff threshold, then the terminal selects an only adjacent radio reception device as the Target Wireless access device, and initiates to switch.
Step 405, terminal A directly initiates to be linked into radio reception device B in handoff procedure here.And the context relevant with terminal A that is retained in radio reception device A can be by wireless radio reception device by oneself.
Embodiment 4:
This embodiment proposes the system that switch at a kind of terminal based on the foregoing description; This system 500 comprises: be positioned at measurement module 501, acquisition module 502, switching judging module 503, the handover module 504 at terminal, and the sending module 510 and AM access module 511 that are positioned at radio reception device;
Measurement module 501 is used for the signal quality of server sub-district is measured, and whether the signal quality of judging Serving cell less than measuring thresholding, when the signal quality of Serving cell when measuring thresholding, adjacent radio reception device is measured;
Acquisition module 502 is used to obtain the information of measuring thresholding, handoff threshold and/or adjacent radio reception device; Said measurement thresholding and handoff threshold are that said acquisition module 502 obtains from Serving cell during the access service sub-district at the terminal, or the measurement thresholding and the handoff threshold of the terminal default setting that obtains from this locality for said acquisition module 502.
Switching judging module 503 is used at the signal quality of Serving cell when measuring thresholding, according to the signal quality that the measurement result of adjacent radio reception device signal quality is judged adjacent radio reception device whether greater than handoff threshold;
When handover module 504 is used for signal quality at adjacent radio reception device greater than handoff threshold, initiate switching flow to adjacent radio reception device.
Send to the terminal when sending module 510 is used at the terminal access service sub-district and measure thresholding and handoff threshold, and/or the information of sending adjacent radio reception device;
AM access module 511 is used for the switching flow that response terminal is initiated, and carries out source radio reception device context and discharges, and accomplish the access process of said terminal to local terminal.
Because this system embodiment is based on said method embodiment; Therefore the module that this system comprised all is to establish for the steps flow chart among the realization said method embodiment; Its function all can directly derive from said method embodiment; Any can functional module or performance element abstract from said method embodiment, that extract or derive all should belonging within the protection range of system embodiment of the present invention,, repeat no more for saving space here.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.
Claims (10)
1. the method switched of a terminal is characterized in that this method comprises:
The terminal judges whether and need measure adjacent radio reception device according to measuring thresholding, when the signal quality of Serving cell when measuring thresholding, adjacent radio reception device is measured;
Said terminal judges whether need to carry out to switch according to handoff threshold, when the signal quality of adjacent radio reception device greater than handoff threshold, switching flow is initiated to adjacent radio reception device in said terminal.
2. method according to claim 1 is characterized in that, said method also comprises:
When access service sub-district, said terminal, send said measurement thresholding and handoff threshold by the radio reception device under the Serving cell to said terminal, said terminal receives and preserves said measurement thresholding and handoff threshold.
3. method according to claim 2; It is characterized in that; Said radio reception device adopts the mode of system broadcasts will measure thresholding and handoff threshold sends to all interior terminals of service range, or will measure thresholding and handoff threshold sends to the terminal through proprietary signaling according to the ability at terminal.
4. method according to claim 1 is characterized in that, said measurement thresholding and handoff threshold are the measurement thresholding and the handoff threshold of said terminal default setting.
5. according to claim 2 or 4 described methods, it is characterized in that said terminal also comprises before carrying out switching judging:
Said terminal obtains the information of adjacent radio reception device through scanning, and carries out signal quality measured to the adjacent radio reception device that scans; Or
By the information that the radio reception device under the Serving cell sends adjacent radio reception device to said terminal, said terminal is carried out signal quality measured according to the information of the adjacent radio reception device that receives to said adjacent radio reception device;
Said terminal according to the signal quality that the measurement result of adjacent radio reception device is judged adjacent radio reception device whether greater than said handoff threshold; If greater than; Then from signal quality greater than selecting one the adjacent radio reception device of said handoff threshold as the Target Wireless access device, otherwise do not do selection.
6. method according to claim 5; It is characterized in that; Said radio reception device adopts the information that the mode of system broadcasts will said adjacent radio reception device to send to all interior terminals of service range, or through proprietary signaling the information of said adjacent radio reception device is sent to the terminal according to the ability at terminal.
7. method according to claim 1 is characterized in that, the method that switching flow is initiated to adjacent radio reception device in said terminal is:
The flow process of current service cell is initiated to leave in said terminal, discharges related context;
Access procedure is initiated at said terminal, is linked into said adjacent radio reception device.
8. the system switched of a terminal is characterized in that this system comprises:
Measurement module is used for the signal quality of server sub-district is measured, and whether the signal quality of judging Serving cell less than measuring thresholding, when the signal quality of Serving cell when measuring thresholding, adjacent radio reception device is measured;
Acquisition module is used to obtain the information of measuring thresholding, handoff threshold and/or adjacent radio reception device;
The switching judging module is used at the signal quality of Serving cell when measuring thresholding, according to the signal quality that the measurement result of adjacent radio reception device signal quality is judged adjacent radio reception device whether greater than handoff threshold;
Handover module when being used for signal quality at adjacent radio reception device greater than handoff threshold, is initiated switching flow to adjacent radio reception device.
9. system according to claim 8 is characterized in that, said radio reception device comprises:
Sending module sends to the terminal when being used at the terminal access service sub-district and measures thresholding and handoff threshold, and/or the information of sending adjacent radio reception device;
AM access module is used for the switching flow that response terminal is initiated, and carries out the terminal context and discharges, and accomplish the access process of said terminal to local terminal.
10. system according to claim 8 is characterized in that, measurement thresholding and handoff threshold that said acquisition module obtains send to said acquisition module by Serving cell, or obtain default value by said acquisition module from this locality.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100587712A CN102685837A (en) | 2011-03-10 | 2011-03-10 | Terminal switching method and system |
| PCT/CN2011/084667 WO2012119475A1 (en) | 2011-03-10 | 2011-12-26 | Method and device for terminal handover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100587712A CN102685837A (en) | 2011-03-10 | 2011-03-10 | Terminal switching method and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102685837A true CN102685837A (en) | 2012-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100587712A Pending CN102685837A (en) | 2011-03-10 | 2011-03-10 | Terminal switching method and system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102685837A (en) |
| WO (1) | WO2012119475A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103299681A (en) * | 2012-12-27 | 2013-09-11 | 华为技术有限公司 | Switching method and device |
| CN103501507A (en) * | 2013-09-05 | 2014-01-08 | 小米科技有限责任公司 | Method and terminal for automatically switching over infinite signal |
| CN109640365A (en) * | 2018-12-27 | 2019-04-16 | 中国联合网络通信集团有限公司 | Switching method, device and the storage medium of cell |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2911449B1 (en) | 2012-10-19 | 2018-06-06 | Fujitsu Limited | Method and device for cell handover and reconfiguration |
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| CN101651961A (en) * | 2008-08-11 | 2010-02-17 | 华为技术有限公司 | Method and terminal for reselecting cell |
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| CN101742598A (en) * | 2008-11-07 | 2010-06-16 | 中兴通讯股份有限公司 | Method and device for reselecting home base station cells |
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| TW200806054A (en) * | 2006-07-03 | 2008-01-16 | Sunplus Technology Co Ltd | Cell reselection method and system using an active measurement set in a mobile communication |
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- 2011-03-10 CN CN2011100587712A patent/CN102685837A/en active Pending
- 2011-12-26 WO PCT/CN2011/084667 patent/WO2012119475A1/en active Application Filing
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| CN101651961A (en) * | 2008-08-11 | 2010-02-17 | 华为技术有限公司 | Method and terminal for reselecting cell |
| CN101730164A (en) * | 2008-10-17 | 2010-06-09 | 上海华为技术有限公司 | Method and terminal for reselecting cell |
| CN101742598A (en) * | 2008-11-07 | 2010-06-16 | 中兴通讯股份有限公司 | Method and device for reselecting home base station cells |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103299681A (en) * | 2012-12-27 | 2013-09-11 | 华为技术有限公司 | Switching method and device |
| CN103299681B (en) * | 2012-12-27 | 2017-04-12 | 华为技术有限公司 | Switching method and device |
| CN103501507A (en) * | 2013-09-05 | 2014-01-08 | 小米科技有限责任公司 | Method and terminal for automatically switching over infinite signal |
| CN109640365A (en) * | 2018-12-27 | 2019-04-16 | 中国联合网络通信集团有限公司 | Switching method, device and the storage medium of cell |
| CN109640365B (en) * | 2018-12-27 | 2021-09-07 | 中国联合网络通信集团有限公司 | Cell switching method, device and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012119475A1 (en) | 2012-09-13 |
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Application publication date: 20120919 |
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