CN1315336C - Handover method based on positioning information - Google Patents
Handover method based on positioning information Download PDFInfo
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- CN1315336C CN1315336C CNB031559069A CN03155906A CN1315336C CN 1315336 C CN1315336 C CN 1315336C CN B031559069 A CNB031559069 A CN B031559069A CN 03155906 A CN03155906 A CN 03155906A CN 1315336 C CN1315336 C CN 1315336C
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Abstract
The present invention relates to a cell-crossing switching method based on positioning information, which is suitable for wireless communication networks. The method comprises the steps that the geographic information of an independent coverage region of each cell and the geographic information of the common coverage region of adjacent cells are stored in a base station controller in advance; the base station controller judges the position of a mobile station according to the stored geographic information after receiving positioning information emitted by the mobile station in a communication state; if the mobile station is judged to be positioned in the independent coverage region of a certain cell, the cell continues to communicate with the mobile station; if the mobile station is judged to be positioned in the common coverage region of the cell and an adjacent cell, a soft switching branch of the mobile station is added to the adjacent cell, else the communication link of the cell and the mobile station is released. The method of the present invention can greatly reduce network processing load and the self power consumption of the mobile station when the mobile station switches crossing cells.
Description
Technical field
The present invention relates to wireless communication field, refer to the method for handover when a kind of mobile radio station is roamed especially.
Background technology
Mobile communication with its huge market value and easily communication mode obtained development at full speed in nearest decades more and more by known to the masses.In the second generation mobile communication system (as GSM) of global extensive use and the soon extensive 3-G (Generation Three mobile communication system) of using (as WCDMA), all be on the basis of cellular system, to develop to form at present.
The appearance of cellular mobile communication can be described as the revolution of mobile communication, and its channeling has improved frequency efficiency greatly and increased power system capacity, and the intellectuality of network has realized handover and roaming function, has expanded the service range of network greatly.
Handover is important techniques in the cell mobile communication systems, and so-called the switching is that a mobile radio station that is in call setup state or busy condition is transformed into process on the new Traffic Channel; Handover can make the user keep the continuity of conversation in the process that moves.
Generally under following two kinds of situations, to switch:
A kind of is that the client who is conversing shifts to another sub-district from a sub-district; Another kind is that mobile radio station is conversed at two sub-district overlapping areas, this Zone that can take Traffic Channel (TCH) is busy especially, signal strength signal intensity, the channel quality of its adjacent cell of base station controller (BSC) notice mobile radio station test at this moment, decision switches to another sub-district with it, the needed switching of traffic balance that Here it is.
The generation of switching be the base station at first to notify mobile radio station with its peripheral cell reach broadcasting service channel (BCCH) carrier frequency for information about, signal strength signal intensity is measured, also to measure signal strength signal intensity and the transmission quality of its shared TCH simultaneously, again measurement result is sent to base station controller (BSC), BSC compares queuing according to these information to peripheral cell, at last makes whether needing the decision of switching by BSC.In addition, when BSC also need differentiate switches, and switches to which sub-district.
Need mobile radio station to report the channel quality measurement of sub-district, place and adjacent area to report to BSC in the prior art, whether will do switching by the BSC decision then, so it has following shortcoming:
1, because a large amount of mobile radio station reporting measurement reports is arranged, BSC is according to corresponding algorithm process and make handover decisions, handles very complicated.
2, mobile radio station need be measured the channel quality of sub-district, place and adjacent area, can increase its power consumption.
3, when the adjacent area is alien-frequency district, the processing of mobile radio station will be more complicated, and power consumption is also more.When starting different-frequency measure, some network processes is more complicated also simultaneously, as the WCDMA network, needs to start compact model.
Summary of the invention
The invention provides a kind of method of handover, can reduce the load of network processes greatly and realize effective handover based on locating information.
Method of the present invention comprises:
In base station controller, store the geography information of each independent overlay area, sub-district and the geography information of the common overlay area of neighbor cell in advance;
Base station controller is judged the residing position of this mobile radio station according to the geography information of storage after receiving the locating information that the mobile radio station that is in communications status sends;
If judging mobile radio station is positioned at independent overlay area, certain sub-district, then continue to communicate by letter with this mobile radio station in this sub-district; If judging mobile radio station is positioned at this sub-district and the common overlay area of neighbor cell, then in the soft handover branches of neighbor cell increase with this mobile radio station; Otherwise, discharge the communication link of this sub-district and this mobile radio station.
According to said method, described neighbor cell can be one or more.
According to said method, described geography information is absolute geography information or relative position information.
According to said method, the locating information that described mobile radio station sends is absolute geography information or relative position information.
Described absolute geography information is an earth longitude and latitude.
Described relative position information is and base station air line distance apart.
Beneficial effect of the present invention is:
1, the locating information only sent with mobile radio station of the inventive method greatly reduces the load of network processes as the foundation of handover.
2, the inventive method has avoided mobile radio station to carry out handover measurement, greatly reduces the power consumption of mobile device.
3, the inventive method can be used as the useful additional of existing method of handover, and it and existing methods are used in combination and will improve the performance of network greatly.
Description of drawings
Fig. 1 is a mobile radio station overlay area schematic diagram in the inventive method.
Embodiment
As shown in Figure 1, the zone that sub-district 1 covers is separately represented in the a-quadrant, the zone that C region representation sub-district 2 covers separately, and the B zone is the overlapping region of sub-district 1,2, expression sub-district 1 and the 2 common zones that cover, sub-district can be called Zone switched.At first, the geography information of corresponding region and the corresponding relation of sub-district are stored in the base station controller.Promptly in base station controller, the geographical location information of storage area A, area B and zone C makes regional A, B corresponding with sub-district 1, makes area B, C corresponding with sub-district 2.
When the mobile radio station that starts positioning service during with network service, base station controller is judged the residing position of mobile radio station according to the geography information of storing in advance after obtaining the locating information that mobile radio station sends.With the mobile phone is example, when mobile phone during in the a-quadrant, by sub-district 1 and network service, when this mobile phone moves to the B zone, base station controller obtains the position of this mobile phone from the locating information that mobile phone sends, according to the corresponding relation of storage geography information and sub-district, after judging this mobile phone and being in the common zones that cover, sub-district 1,2, increase the soft handover branches of sub-district 2 and this mobile phone; Simultaneously, when mobile phone continued to move to zone C, sub-district 1 discharged the soft handover branches with this mobile phone, by sub-district 2 connection network communication services.
Geography information in the said method can be absolute geography information or relative position information.Absolute geography information can represent that relative position information can be with representing with the air line distance of base station with earth longitude and latitude.
In the said method, the locating information that mobile radio station sends also can be absolute geography information or relative position information.
The foregoing description has only exemplified the simplest a kind of situation, and in the reality, the neighbor cell of a certain sub-district can be more than one; Simultaneously, do not get rid of the overlapping region that a certain zone is a plurality of sub-districts yet.No matter but which kind of situation, from top elaboration as can be known, when being the network planning, the switching principle that the present invention is based on geography information divides: in which zone communicate, which zone can communicate (soft handover) in some sub-districts with a certain sub-district according to the zone that covers.In case mobile radio station enters relevant zone, can make handover decisions according to locating information.
Therefore, for the network that positioning service can be provided, changing method of the present invention all is to handle the minimum and efficient ways of load for network and mobile radio station, and the part that can be used as existing changing method substitutes or replenishes.
Claims (6)
1, a kind of method of handover based on locating information is applicable to cordless communication network, and this method comprises:
In base station controller, store the geography information of each independent overlay area, sub-district and the geography information of the common overlay area of neighbor cell in advance;
Base station controller is judged the residing position of this mobile radio station according to the geography information of storage after receiving the locating information that the mobile radio station that is in communications status sends;
If judging mobile radio station is positioned at independent overlay area, certain sub-district, then continue to communicate by letter with this mobile radio station in this sub-district; If judging mobile radio station is positioned at this sub-district and the common overlay area of neighbor cell, then in the soft handover branches of neighbor cell increase with this mobile radio station; Otherwise, discharge the communication link of this sub-district and this mobile radio station.
2, the method for handover based on locating information as claimed in claim 1, it is characterized in that: described neighbor cell can be one or more.
3, the method for handover based on locating information as claimed in claim 1 is characterized in that: described geography information is absolute geography information or relative position information.
4, the method for handover based on locating information as claimed in claim 1 is characterized in that: the locating information that described mobile radio station sends is absolute geography information or relative position information.
5, as claim 3 or 4 described method of handover based on locating information, it is characterized in that: described absolute geography information is an earth longitude and latitude.
6, as claim 3 or 4 described method of handover based on locating information, it is characterized in that: described relative position information is and base station air line distance apart.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031559069A CN1315336C (en) | 2003-08-26 | 2003-08-26 | Handover method based on positioning information |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031559069A CN1315336C (en) | 2003-08-26 | 2003-08-26 | Handover method based on positioning information |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1592433A CN1592433A (en) | 2005-03-09 |
| CN1315336C true CN1315336C (en) | 2007-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB031559069A Expired - Fee Related CN1315336C (en) | 2003-08-26 | 2003-08-26 | Handover method based on positioning information |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4525207B2 (en) * | 2004-06-25 | 2010-08-18 | 株式会社日立製作所 | Wireless communication system |
| CN101051924B (en) * | 2006-04-06 | 2011-05-18 | 华为技术有限公司 | Equipment managing method for user's networks and user's network managing entity |
| CN101242327B (en) * | 2008-01-28 | 2010-06-16 | 凌阳多媒体股份有限公司 | Wireless network communication system and method for signal switching based on position |
| CN101621793B (en) * | 2008-06-30 | 2011-11-16 | 华为技术有限公司 | Quick switching method and device based on decentralization mobility management business architecture |
| CN101742516B (en) * | 2008-11-21 | 2012-01-25 | 中国移动通信集团湖南有限公司 | Method and device for controlling energy consumption state of base stations |
| CN102246560A (en) * | 2008-12-16 | 2011-11-16 | 日本电气株式会社 | Mobility control system and mobility control method |
| CN103096408A (en) * | 2011-11-04 | 2013-05-08 | 上海瀚讯无线技术有限公司 | Handover method in mobile communication |
| CN106332202A (en) * | 2016-08-22 | 2017-01-11 | 成都奥克特科技有限公司 | Mobile communication access method for reducing influence of overshooting interference |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5327575A (en) * | 1992-03-23 | 1994-07-05 | Motorola, Inc. | Directional handover control in digital mobile radio systems employing MAHO |
| CN1303575A (en) * | 1998-05-28 | 2001-07-11 | 摩托罗拉公司 | Method for improving communication coverage in multi-cell communication systems using location information |
| CN1336090A (en) * | 1998-12-22 | 2002-02-13 | 艾利森电话股份有限公司 | Improved CDMA soft hand-off |
-
2003
- 2003-08-26 CN CNB031559069A patent/CN1315336C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5327575A (en) * | 1992-03-23 | 1994-07-05 | Motorola, Inc. | Directional handover control in digital mobile radio systems employing MAHO |
| CN1303575A (en) * | 1998-05-28 | 2001-07-11 | 摩托罗拉公司 | Method for improving communication coverage in multi-cell communication systems using location information |
| CN1336090A (en) * | 1998-12-22 | 2002-02-13 | 艾利森电话股份有限公司 | Improved CDMA soft hand-off |
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| CN1592433A (en) | 2005-03-09 |
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Owner name: ZHONGJITONG INTELLECTUAL PROPERTY AGENCY (BEIJING) Free format text: FORMER OWNER: HUAWEI TECHNOLOGY CO., LTD. Effective date: 20150626 Owner name: BEIJING ZHIXUN HUOBAN TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ZHONGJITONG INTELLECTUAL PROPERTY AGENCY (BEIJING) CO., LTD. Effective date: 20150626 |
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Effective date of registration: 20150626 Address after: 100193 Beijing City, northeast of Haidian District, South Road, No. 29, building 3, room 4, room 4516 Patentee after: BEIJING ZHIXUN PARTNER TECHNOLOGY CO.,LTD. Address before: 100085 02A, room 28, block B, No. 159, information road, Beijing, Haidian District Patentee before: Zhongjitong Intellectual Property Agency (Beijing) Co.,Ltd. Effective date of registration: 20150626 Address after: 100085 02A, room 28, block B, No. 159, information road, Beijing, Haidian District Patentee after: Zhongjitong Intellectual Property Agency (Beijing) Co.,Ltd. Address before: 518057 Guangdong city of Shenzhen province Nanshan District Science Park Branch Road No. 1 HUAWEI Service Center Building Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |
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