CN1882162A - Realization method for avoiding ping-pong switching in wireless communication system - Google Patents
Realization method for avoiding ping-pong switching in wireless communication system Download PDFInfo
- Publication number
- CN1882162A CN1882162A CNA2005100766632A CN200510076663A CN1882162A CN 1882162 A CN1882162 A CN 1882162A CN A2005100766632 A CNA2005100766632 A CN A2005100766632A CN 200510076663 A CN200510076663 A CN 200510076663A CN 1882162 A CN1882162 A CN 1882162A
- Authority
- CN
- China
- Prior art keywords
- wireless communication
- signal quality
- district
- switching
- sub
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention relates to a method for avoiding the ping-pang switch in wireless communication system, which comprises: the mobile terminal, in the switch process, first confirms the useful target region, and measures the service property parameter information of said target region; when the parameter meets the demand, switching the user terminal to the target region; therefore, the invention can improve the reliability of mobile terminal communication to avoid ping-pang switch, and avoid occupying lots of wireless communication resource, to reduce the effect on the property of wireless communication system.
Description
Technical field
The present invention relates to wireless communication technology field, relate in particular to the implementation method of avoiding in a kind of wireless communication system rattling and switching.
Background technology
In mobile communication system, because the mobility of terminal makes that it is inevitable switching; Described switching is meant that portable terminal switches to another Serving cell from a Serving cell (as the base station) and carries out radio communication service.
In traditional cellular communication system, the switching of portable terminal is to be controlled by the network equipment.And 802.16 to be in the new wireless communication system of representative, terminal also can be used as the adjudicator of switching.
The foundation that the terminal judgement is switched only is the signal quality of neighbor cell, when terminal is in the edge of a plurality of sub-districts, the signal quality of sub-district is approaching, might cause terminal to be switched back and forth in the minizone, promptly table tennis switches, to cause waste to be eated dishes without rice or wine in a large number and Internet resources like this, and cause systematic function to descend.
In the switching flow of 802.16e, the hand-off process flow process of being initiated by MSS (portable terminal) specifically comprises following process as shown in Figure 1:
Step 11: portable terminal is initiated the terminal handoff request to serving BS broadcasts, is carrying the list information of candidate target BS in the request;
The list information of described candidate target BS is that MSS determines according to each cell signal that obtains and signal quality size cases thereof in scanning process;
Step 12: after serving BS broadcasts is received described request, send handoff request, still carrying the list information of candidate target BS in the request to ASN GW;
Step 13:ASN GW sends to each target BS and switches pre-notification message;
Step 14: each target BS is returned to ASN GW and is switched pre-push-notification-answer message;
After step 15:ASN GW receives the response message of described target BS, return switching response message, carrying the target BS list information of recommending use in the message to the serving BS broadcasts of portable terminal;
Step 16: serving BS broadcasts continues to return switching response message to mobile terminal MS S, is carrying the list information of the target BS that can select in the message;
Step 17:MSS continuation in the target BS tabulation is selected definite target BS according to the signal quality of each target BS, and sends switch indicating information to serving BS broadcasts, is carrying definite target BS information of selecting in the message;
Step 18: serving BS broadcasts continues to send switch indicating information, the information of still carrying described target BS in the message to ASN GW;
Step 19:ASN GW sends to corresponding target BS and switches expression information, requires target BS to carry out hand-off process;
Again the processing procedure that inserts between step 110:MSS and described target BS.
As can be seen, in the handoff process that above-mentioned portable terminal is initiated, can avoid the generation of rattling and switching without any means.And, in case switching, table tennis takes place, not only directly have influence on the operate as normal of portable terminal, and simultaneously, handoff procedure also will take the communication resource in the wireless communication system in a large number, and then have influence on the system communication performance.
Summary of the invention
In view of above-mentioned existing in prior technology problem, the purpose of this invention is to provide the implementation method of avoiding in a kind of wireless communication system rattling and switching, thereby make that the handoff procedure of portable terminal is more reliable, effectively avoided the appearance of the situation that portable terminal switches back and forth in the minizone.
The objective of the invention is to be achieved through the following technical solutions:
The invention provides the implementation method of avoiding in a kind of wireless communication system rattling and switching, comprising:
A, in handoff procedure, determine that user terminal switches the Target cell that can select, the pacing amount of going forward side by side is determined the service performance parameter information of described Target cell;
B, when further measurement determines that the service performance parameter information of the described Target cell that can select meets predetermined service performance parameter information and requires, user terminal is switched to described Target cell.
Among the present invention, this method also comprises before execution in step A:
C, in handoff procedure, determine to can be used as the sub-district of the candidate Target cell after user terminal switches, the service performance parameter information of each sub-district of pacing amount of going forward side by side;
D, the service performance parameter information met the candidate target cells of the sub-district of pre-provisioning request as the user terminal hand-off process.
Described handoff procedure is to be initiated by portable terminal or network side.
The service performance parameter information of described sub-district comprises:
The signal quality information of sub-district and the time long letter breath that continues;
Perhaps, the signal quality of sub-district is higher than the parameter value of the signal quality of former Serving cell;
Perhaps, the signal quality of sub-district is higher than the parameter value and the time long letter breath that continues of the signal quality of former Serving cell.
Described signal quality information is to indicate RSSI or received signal code power RSCP or dominant pilot signal to noise ratio Ec/Io to determine according to received signal intensity.
Described step B comprises:
B1, determine that signal quality meets the Target cell that can select of predetermined requirement;
B2, determine that signal quality meets the time that the situation of predetermined requirement continues and surpasses the long Target cell that can select of preset time;
B3, user terminal is switched to this Target cell.
Described step D comprises:
D1, determine that signal quality meets the sub-district of predetermined requirement;
D2, determine that signal quality meets predetermined requirement and lasting time surpasses the long sub-district of preset time, and the candidate Target cell that described sub-district is switched as user terminal.
Method of the present invention also comprises:
E, user terminal and the network equipment consult to determine described service performance parameter information.
Described step e comprises:
E1, in user terminal and network equipment basic capability negotiating SBC process, or switch the HO process, or the special process that is provided with consults to determine described service performance parameter information.
Described step e 1 comprises:
By the SBC in SBC process request or SBC response message, perhaps by the HO response message in the HO process, perhaps specific messages carries the negotiation of the service performance parameter information that described predetermined service performance parameter information is scheduled to.
As seen from the above technical solution provided by the invention, realization of the present invention makes portable terminal just to carry out hand-off process after determining a metastable target BS, thus the generation of the switching of can effectively avoiding rattling.Therefore, realization of the present invention not only can guarantee the reliability of communication of mobile terminal, simultaneously, can also avoid causing taking a large amount of wireless communication resources owing to the generation that table tennis switches, and has reduced the Effect on Performance of handoff process to wireless communication system.
Description of drawings
Fig. 1 is the hand-off process schematic flow sheet that portable terminal is initiated in the prior art;
Fig. 2 is the handling process schematic diagram of the method described in the present invention;
Fig. 3 is the process schematic diagram of negotiate service performance parameter.
Embodiment
Core of the present invention is when portable terminal need carry out handover operation, at first, according to the service performance parameter information of sub-district determine corresponding Target cell can be reliably as the Serving cell of portable terminal, just portable terminal is switched to Target cell then, thereby effectively avoided portable terminal to switch back and forth, improved the reliability of communication of mobile terminal in the minizone.
The present invention is specially in implementation procedure and at first defines two service performance parameters: signal quality thresholding T and longer duration information P.
When MS when selecting candidate target BS and target BS, need determine whether corresponding candidate target BS or target BS corresponding district meet the requirements according to two parameters of definition, thereby determine corresponding candidate BS or target BS.Concrete processing mode is:
(1) judges that the signal quality of the candidate target BS of respective alternative or alternative target BS respective cell is better than the signal quality of current service BS respective cell, and the degree that signal quality is good is more than or equal to predetermined T value accordingly, for example, suppose that thresholding T is 5, the signal quality of serving BS broadcasts is 20, and the signal quality of then alternative candidate target BS or alternative target BS is at least 25 and just meets predetermined requirement;
The foundation of judging the cell signal quality can be RSSI (received signal intensity), RSCP (received signal code power) or Ec/Io (dominant pilot signal to noise ratio);
(2) when duration that described alternative candidate target BS or alternative target BS meet the condition of above-mentioned (1) describing during, then select corresponding BS as candidate target BS or target BS more than or equal to P.
In the specific implementation process, described service performance parameter also can be defined as following several situation:
(1) process to simplify the process, also only objective definition cell signal quality is higher than the predetermined parameters value information of signal quality of Serving cell as the service performance parameter information among the present invention;
(2) the satisfactory predetermined parameters information of objective definition cell signal quality, and the long requirement of preset time of the time long letter breath that continues under the situation that meets the requirements.
Equally, described signal quality information can be determined according to RSSI, RSCP or Ec/Io.
For the present invention there being further understanding, the implementation method of switching of avoiding in the wireless communication system of the present invention rattling is described in detail below in conjunction with accompanying drawing.
Initiating handoff process with portable terminal is example, and method of the present invention specifically may further comprise the steps as shown in Figure 2:
Step 21: portable terminal is determined to carry out hand-off process, then in handoff procedure, at first determines can be used as the sub-district of the candidate Target cell after user terminal switches, the service performance parameter information of each sub-district of pacing amount of going forward side by side;
Portable terminal specifically is to determine according to the signal quality of each sub-district whether it can be used as the candidate Target cell, and described signal quality can be determined according to RSSI, RSCP or Ec/Io;
The service quality performance parameter information of measuring each sub-district comprises: the signal quality of each sub-district is higher than the parameter value of signal quality of the Serving cell of portable terminal, and the time long letter breath that continues;
Step 22: portable terminal determines that according to the pre-provisioning request of the service performance parameter information that obtains signal quality meets the sub-district of predetermined requirement;
Be specially: whether the quantitative value of signal quality parameter value that the signal quality parameter value of judging the sub-district is higher than the Serving cell of portable terminal reaches predetermined requirement, if, then execution in step 23, otherwise, illustrate that this sub-district can not be as the candidate Target cell of portable terminal;
Step 23: determine that signal quality meets predetermined requirement and the lasting time surpasses the long sub-district of preset time, and with the candidate Target cell of described sub-district as the user terminal switching;
Be specially: surpass predetermined quality gate limit value if signal quality is better than the value of the signal quality of Serving cell, and the time that continues surpasses predetermined time value, then this sub-district can be used as the candidate target cells of portable terminal;
Step 24: portable terminal obtains one group of target BS information being determined according to described candidate Target cell by network side, promptly recommends the target BS of selecting;
Be specially: by above-mentioned steps 21 to step 23 process is that portable terminal is determined one group of candidate Target cell, and be carried on the serving BS broadcasts that sends to portable terminal in the candidate target BS tabulation, and determine corresponding Target cell by carrying out information interaction between serving BS broadcasts and ASN GW, be portable terminal and determine one group of target BS, being called the target BS of recommend selecting, is definite by communicating by letter between ASN GW and each candidate target BS; The specific implementation of this process no longer describes in detail referring to shown in Figure 1 herein;
Step 25: determine the one group of Target cell can selecting after user terminal switches, after the target BS of promptly recommending to select, then further measure the service performance parameter information of the target BS corresponding district of determining that recommendation is selected, i.e. signal quality and longer duration information;
Step 26: portable terminal determines that according to the pre-provisioning request of described service performance parameter information signal quality meets the target BS of the recommendation selection of predetermined requirement;
Be specially: whether the quantitative value of signal quality parameter value that the signal quality parameter value of the target BS corresponding district of judge to recommend selecting is higher than the Serving cell of portable terminal reaches predetermined requirement, if, then execution in step 27, otherwise, illustrate that this BS can not be as the target BS of portable terminal;
Step 27: determine that signal quality meets predetermined requirement and the lasting time surpasses the target BS that the long recommendation of preset time is selected, and with the target BS of described BS as user terminal, the serving BS broadcasts after promptly switching as portable terminal;
Be specially: surpass predetermined quality gate limit value if described BS corresponding district signal quality is better than the value of the signal quality of Serving cell, and the time that continues surpasses predetermined time value, then this sub-district can be used as the Target cell of portable terminal;
Step 28: after portable terminal is determined described target BS, still carry out corresponding hand-off process by its serving BS broadcasts and ASN GW, concrete processing procedure is still referring to Fig. 1.
In above-mentioned processing procedure, portable terminal need obtain the predetermined service performance parameter information of selecting between the candidate target BS and needing in the target BS process, is described below in conjunction with the acquisition methods of accompanying drawing to described predetermined service performance parameter information.
Among the present invention, portable terminal, promptly user terminal is by consulting to determine described predetermined service performance parameter information with network side.
As shown in Figure 3, between user terminal and network side, can consult to determine described predetermined service performance parameter information, specifically comprise by the SBC process:
Step 31:MSS sends SBC request SBC_REQ message to network equipment (as BS), is carrying the information that needs the predetermined service performance parameter of acquisition request in the message;
Step 32: after network equipment is received described request message, obtain MSS and need obtain predetermined service performance parameter information, then the predetermined service performance parameter information that network side is determined is carried in the SBC response SBC_RSP message and sends to MSS.
That is to say, can be used to carry out the negotiation of service performance parameter information by increasing corresponding predetermined service performance parameter information field among the present invention at SBC request message or SBC response message.For example, long two parameters of aforementioned signal quality threshold value and time can be carried in the field that increases in SBC_RSP message and the SBC_REQ message and hold consultation, thereby determine the service performance parameter information that portable terminal needs.
In addition, among the present invention, portable terminal obtains described predetermined service performance parameter information and can also realize by HO (switching) process in the wireless communication system, specifically can send to portable terminal by HO_RSP (HO response) message by network side.
Certainly, the service performance parameter information that can also be scheduled to by the specific messages in the message negotiations process of special setting of portable terminal obtains.
The present invention is suitable for any wireless communication system of being initiated handoff process by portable terminal.Simultaneously, the present invention also can be applied to the wireless communication system that network side is initiated handoff process.
The table tennis switching problem that may occur when portable terminal carries out the sub-district hand-off process in the wireless communication system has effectively been avoided in realization of the present invention in sum.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (10)
1, the implementation method of avoiding in a kind of wireless communication system rattling and switching is characterized in that, comprising:
A, in handoff procedure, determine that user terminal switches the Target cell that can select, the pacing amount of going forward side by side is determined the service performance parameter information of described Target cell;
B, when further measurement determines that the service performance parameter information of the described Target cell that can select meets predetermined service performance parameter information and requires, user terminal is switched to described Target cell.
2, the implementation method of avoiding in the wireless communication system according to claim 1 rattling and switching is characterized in that this method also comprises before execution in step A:
C, in handoff procedure, determine to can be used as the sub-district of the candidate Target cell after user terminal switches, the service performance parameter information of each sub-district of pacing amount of going forward side by side;
D, the service performance parameter information met the candidate Target cell of the sub-district of pre-provisioning request as the user terminal hand-off process.
3, the implementation method of avoiding in the wireless communication system according to claim 1 rattling and switching is characterized in that, described handoff procedure is to be initiated by portable terminal or network side.
4, according to the implementation method of avoiding in claim 1, the 2 or 3 described wireless communication systems rattling and switching, it is characterized in that the service performance parameter information of described sub-district comprises:
The signal quality information of sub-district and the time long letter breath that continues;
Perhaps, the signal quality of sub-district is higher than the parameter value of the signal quality of former Serving cell;
Perhaps, the signal quality of sub-district is higher than the parameter value and the time long letter breath that continues of the signal quality of former Serving cell.
5, the implementation method of avoiding in the wireless communication system according to claim 4 rattling and switching is characterized in that, described signal quality information be definite according to received signal intensity indication RSSI or received signal code power RSCP or dominant pilot signal to noise ratio Ec/Io.
6, the implementation method of avoiding in the wireless communication system according to claim 4 rattling and switching is characterized in that described step B comprises:
B1, determine that signal quality meets the Target cell that can select of predetermined requirement;
B2, determine that signal quality meets the time that the situation of predetermined requirement continues and surpasses the long Target cell that can select of preset time;
B3, user terminal is switched to this Target cell.
7, the implementation method of avoiding in the wireless communication system according to claim 4 rattling and switching is characterized in that described step D comprises:
D1, determine that signal quality meets the sub-district of predetermined requirement;
D2, determine that signal quality meets predetermined requirement and lasting time surpasses the long sub-district of preset time, and the candidate Target cell that described sub-district is switched as user terminal.
8, according to the implementation method of avoiding in claim 1, the 2 or 3 described wireless communication systems rattling and switching, it is characterized in that this method also comprises:
E, user terminal and the network equipment consult to determine described service performance parameter information.
9, the implementation method of avoiding in the wireless communication system according to claim 8 rattling and switching is characterized in that described step e comprises:
E1, in user terminal and network equipment basic capability negotiating SBC process, or switch the HO process, or the special process that is provided with consults to determine described service performance parameter information.
10, the implementation method of avoiding in the wireless communication system according to claim 9 rattling and switching is characterized in that described step e 1 comprises:
By the SBC in SBC process request or SBC response message, perhaps by the HO response message in the HO process, perhaps specific messages carries the negotiation of the service performance parameter information that described predetermined service performance parameter information is scheduled to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100766632A CN1882162A (en) | 2005-06-13 | 2005-06-13 | Realization method for avoiding ping-pong switching in wireless communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100766632A CN1882162A (en) | 2005-06-13 | 2005-06-13 | Realization method for avoiding ping-pong switching in wireless communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1882162A true CN1882162A (en) | 2006-12-20 |
Family
ID=37520081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005100766632A Pending CN1882162A (en) | 2005-06-13 | 2005-06-13 | Realization method for avoiding ping-pong switching in wireless communication system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1882162A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101931977A (en) * | 2009-06-19 | 2010-12-29 | 大唐移动通信设备有限公司 | Method and device for optimizing ping-pong switching |
| CN102056113A (en) * | 2009-11-04 | 2011-05-11 | 中兴通讯股份有限公司 | Method and base station for processing emergency service switching |
| WO2011085541A1 (en) * | 2010-01-12 | 2011-07-21 | 上海贝尔股份有限公司 | Method and apparatus for handover between cells |
| CN102264108A (en) * | 2010-05-25 | 2011-11-30 | 电信科学技术研究院 | Method and equipment for adjusting mobility parameters |
| WO2014176780A1 (en) * | 2013-05-03 | 2014-11-06 | 华为技术有限公司 | Measurement method, measurement control method and device |
| CN104396288A (en) * | 2012-05-11 | 2015-03-04 | 英特尔公司 | Determining proximity of user equipment for device-to-device communication |
| CN102123426B (en) * | 2010-01-12 | 2015-05-13 | 中兴通讯股份有限公司 | Sub-base station finding method, switch preprocessing method and terminal in wireless communication system |
| CN107113684A (en) * | 2014-11-19 | 2017-08-29 | 联发科技股份有限公司 | Wireless communications method and device |
| CN110831099A (en) * | 2018-08-08 | 2020-02-21 | 电信科学技术研究院有限公司 | Cell reselection method, device, terminal and network node |
-
2005
- 2005-06-13 CN CNA2005100766632A patent/CN1882162A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101931977A (en) * | 2009-06-19 | 2010-12-29 | 大唐移动通信设备有限公司 | Method and device for optimizing ping-pong switching |
| CN101931977B (en) * | 2009-06-19 | 2013-07-10 | 电信科学技术研究院 | Method and device for optimizing ping-pong switching |
| CN102056113A (en) * | 2009-11-04 | 2011-05-11 | 中兴通讯股份有限公司 | Method and base station for processing emergency service switching |
| WO2011085541A1 (en) * | 2010-01-12 | 2011-07-21 | 上海贝尔股份有限公司 | Method and apparatus for handover between cells |
| CN102123426B (en) * | 2010-01-12 | 2015-05-13 | 中兴通讯股份有限公司 | Sub-base station finding method, switch preprocessing method and terminal in wireless communication system |
| CN102264108A (en) * | 2010-05-25 | 2011-11-30 | 电信科学技术研究院 | Method and equipment for adjusting mobility parameters |
| CN102264108B (en) * | 2010-05-25 | 2014-06-04 | 电信科学技术研究院 | Method and equipment for adjusting mobility parameters |
| CN104396288A (en) * | 2012-05-11 | 2015-03-04 | 英特尔公司 | Determining proximity of user equipment for device-to-device communication |
| WO2014176780A1 (en) * | 2013-05-03 | 2014-11-06 | 华为技术有限公司 | Measurement method, measurement control method and device |
| CN107113684A (en) * | 2014-11-19 | 2017-08-29 | 联发科技股份有限公司 | Wireless communications method and device |
| CN110831099A (en) * | 2018-08-08 | 2020-02-21 | 电信科学技术研究院有限公司 | Cell reselection method, device, terminal and network node |
| CN110831099B (en) * | 2018-08-08 | 2022-06-28 | 大唐移动通信设备有限公司 | Cell reselection method, device, terminal and network node |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1882162A (en) | Realization method for avoiding ping-pong switching in wireless communication system | |
| CN1294784C (en) | Method for determining a monitored set of cells associated with an active set of cells | |
| CN1123273C (en) | Interworking between radio access networks | |
| CN1087128C (en) | Hard handoff method using the dummy pilot | |
| CN1751530A (en) | Method and apparatus for determining coverage and switching between overlay communication systems | |
| CN1867188A (en) | Switching method, switching device and mobile terminal | |
| CN101043714A (en) | Method and system for realizing mobility management of user equipment | |
| CN1147189C (en) | Communication terminal and wireless communication method | |
| CN1802862A (en) | Switching method and base station control device | |
| CN1758810A (en) | Soft handoff system, mobile terminal having the same and soft handoff method | |
| CN1832621A (en) | Switchover controll method of multiple frequency points system | |
| CN1949919A (en) | Method for judging handover in mobile communication system | |
| CN101053268A (en) | Handover system and method in heterogeneous network | |
| CN1518390A (en) | Switching method in radio local network, insertion point and mobile station for executing switching method | |
| CN1770920A (en) | Communication method and apparatus using heterogeneous neighbor base station information in a broadband wireless access communication system | |
| CN101031132A (en) | Wireless resource management system and switch controlling method based on it | |
| CN1901750A (en) | Detecting method and its system for missing matched adjacent zone | |
| CN1941962A (en) | Mobile communication terminal enable to re-select of cell and its operating method | |
| CN1390427A (en) | Mobile communication system and method for controlling communication of the same | |
| CN1859726A (en) | Method for realizing user's terminal switching in layered cells | |
| CN101076179A (en) | Method for improving system performance in mobile wideband wireless access system | |
| CN1889770A (en) | Switching method for wireless mobile communication system and system | |
| CN1839567A (en) | Mobile communication system, mobile station, and radio control device | |
| CN1863370A (en) | Method for implementing selective in shared network transfer | |
| CN101043711A (en) | Method and system for realizing resource consistency process in wireless communication system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |