CN101742585A - Wireless communication system and base station switching method thereof - Google Patents
Wireless communication system and base station switching method thereof Download PDFInfo
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- CN101742585A CN101742585A CN200810203385A CN200810203385A CN101742585A CN 101742585 A CN101742585 A CN 101742585A CN 200810203385 A CN200810203385 A CN 200810203385A CN 200810203385 A CN200810203385 A CN 200810203385A CN 101742585 A CN101742585 A CN 101742585A
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Abstract
The invention discloses a base station switching method, which is suitable for switching a mobile device by a server device from a first base station to a second base station when the mobile device moves from a first service area to a second service area, and comprises: receiving position information sent by a mobile device, wherein the position information is acquired by the mobile device from a global positioning system; acquiring a second server area to which the mobile device moves according to the position information; and serving the mobile device by switching the mobile device from the first base station to the second base station corresponding to the second service area. The invention also discloses a wireless communication system. In the invention, the current position information of the mobile device is acquired by using the global positioning system of the mobile device and is transmitted to the server device; the server device switches the base stations according to the position information of the mobile device and predicts the advancing direction of the mobile device; and thus, the switching time is more accurate and switching by mistake is avoided.
Description
Technical field
The present invention relates to a kind of method of base station shifting, the method for particularly a kind of wireless communication system and base station shifting thereof.
Background technology
(Wireless Local Area Network, design WLAN) is based on cellular infrastructure (Cellular Architecture) to the wireless service LAN.A plurality of coverages in the wireless service LAN, have been comprised, just cell (cell).And each coverage can be controlled by a base station (Base Station).In cellular infrastructure, when mobile device moves to the coverage that another base station covers from a coverage that the base station covered, the service end device then can be monitored the signal strength signal intensity of mobile device, mobile device is forwarded to the stronger base station of another signal automatically, and adjust to suitable channel automatically, do not interrupt with the communication of guaranteeing mobile device.
For instance, Fig. 1 is the calcspar of a kind of wireless communication system in the prior art.Please refer to Fig. 1, suppose that the mobile device desire moves to the B point from the A point.Wherein, A point and B point lay respectively at coverage 110 and coverage 130.And coverage 110 and coverage 130 are respectively the coverage of base station 120 and base station 140.
Suppose it is to provide service at present with the 120 pairs of mobile devices in base station.The signal strength signal intensity that is positioned at the received base station 120 of A point when mobile device is higher than a switching threshold value, and mobile device is positioned at the signal strength signal intensity of the received base station 140 of B point when being lower than above-mentioned switching threshold value, the service end device then can not switch to mobile device base station 140, and still serves mobile device with base station 120.
On the other hand, the signal strength signal intensity that is positioned at the received base station 120 of A point when mobile device is lower than the switching threshold value, and mobile device is positioned at the signal strength signal intensity of the received base station 140 of B point and is higher than when switching threshold value, and then the service end device just switches to mobile device base station 140.
Yet, if the setting of switching threshold value is too low, neighbor base station can appear than the high situations of much but not switching of current base station voltage.The communication quality of mobile device will seriously be affected so.In addition, because tradition is to utilize signal strength signal intensity to determine whether base station shifting, also be easy to generate the situation that the base station mistake is switched.
Summary of the invention
For overcoming the deficiency of above-mentioned prior art, the technical problem to be solved in the present invention provides a kind of wireless communication system, (the assistant service end device switches the base for Globe Positioning System, the GPS) positional information that is obtained by the global positioning system of mobile device.
The invention provides a kind of method of base station shifting, the service end device decides the base station of desire switching according to the positional information of mobile device
The present invention proposes a kind of wireless communication system, comprise mobile device, a plurality of base station and service end device.Mobile device has global positioning system, utilizes global positioning system to obtain the positional information at mobile device place.And the service that above-mentioned base station provided covers a coverage respectively.The positional information that the service end device then receives mobile device and transmitted, and, switch to the base station of the coverage correspondence at the present place of mobile device according to positional information, with the service mobile device.
The present invention proposes a kind of method of base station shifting, be applicable at mobile device when first coverage moves to second coverage, switch to second base station from first base station by the service end device.At first, receive the positional information that mobile device transmitted, and above-mentioned positional information to be mobile device obtain from global positioning system.Then, by positional information, obtain second coverage after mobile device moves.At last, mobile device is served in second base station that switches to the second coverage correspondence from first base station.
Above-mentioned step in the reception positional information that mobile device transmitted also comprises according to positional information, judges whether mobile device moves to second coverage.When mobile device does not move to second coverage and when still being positioned at first coverage, continues the service mobile device by first base station.On the other hand, when mobile device moved to second coverage, according to the direction of motion in the positional information and movement velocity, whether the prediction mobile device desired to return first coverage.If predict mobile device when desiring to return first coverage, continue the service mobile device by first base station.Otherwise,, switch to second base station from first base station if predict mobile device when not returning first coverage.
In one embodiment of this invention, the method for base station shifting also comprises provides the base station distribution data, inquires about the base station distribution data with the foundation positional information, and obtains second coverage and the second corresponding base station at mobile device place.
In one embodiment of this invention, above-mentioned after the step that obtains second coverage after mobile device moves, more can be according to the movement velocity in the positional information, the prediction downlink transmission data rate.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention is the present position information that the global positioning system by mobile device obtains, to be sent to the service end device.The service end device then according to the positional information of mobile device, carries out the switching of base station, and the direction of advance of measurable mobile device.In view of the above, can make the time point of switching more accurate, and the situation of avoiding mistake to switch take place.
Description of drawings
Fig. 1 is the calcspar of prior art wireless communication system.
Fig. 2 is the calcspar of wireless communication system of the present invention.
Fig. 3 is the coverage schematic diagram of wireless communication system of the present invention.
Fig. 4 is the method flow diagram of base station shifting of the present invention.
Fig. 5 is the method flow diagram of another embodiment of the present invention base station shifting.
[primary clustering symbol description]
110,130: the coverage
120,140,230,240: the base station
200: wireless communication system
210: the service end device
211: the base station distribution data
220: mobile device
221: global positioning system
S405～S415: each step of the method for one embodiment of the invention base station shifting
S505～S525: each step of the method for another embodiment of the present invention base station shifting
Embodiment
Specific embodiments of the present invention are further described in detail below in conjunction with drawings and Examples, but should not limit protection scope of the present invention with this.
Fig. 2 is the calcspar of the wireless communication system that illustrates according to one embodiment of the invention.Please refer to Fig. 2, wireless communication system 200 comprises service end device 210, mobile device 220, the base station 230 and base station 240 of (GPS) 221 that have global positioning system.For convenience of description, only illustrate in the present embodiment with base station 230 and base station 240.Do not limit to the quantity of base station at this.
And more comprise base station distribution data 211 in the service end device 210.The scope (for example, writing down the scope of coverage) and the corresponding base station thereof of a plurality of coverages have been write down in the base station distribution data 211 with longitude and latitude.
In order more clearly to express the method for above-mentioned base station shifting, below the detailed process of base station shifting method of the present invention is described for another embodiment again.Fig. 4 is the method flow diagram of the base station shifting that illustrates according to one embodiment of the invention.Please in the present embodiment, suppose that mobile device 220 desires move to coverage A from coverage D simultaneously with reference to Fig. 2, Fig. 3 and Fig. 4, and suppose that base station 230 is arranged in the D of coverage, base station 240 is arranged in the A of coverage.
At first, in step S405, when mobile device 200 when coverage D moves to coverage A, service end device 210 can receive the positional information that mobile device 220 is transmitted.That is to say that mobile device 220 utilizes global positioning system 221 to obtain the positional information that is positioned at coverage A at present, comprise position coordinates (longitude and latitude), movement velocity and direction of motion or the like.Afterwards, mobile device 220 is sent to positional information service end device 210 again.
Then, in step S410, service end device 210 learns that by positional information mobile device 220 has moved to coverage A.Say that further service end device 210 is to inquire about base station distribution data 211 according to positional information.Service end device 210 is compared position coordinates in the positional information and base station distribution data, is to fall among the A of coverage to inquire position coordinates.Service end device 210 is when being positioned at coverage A inquiring mobile device 200, also can learn the pairing base station 240 of coverage A simultaneously.
At last, in step S415, service end device 210 switches to the base station 240 of coverage A correspondence from the base station 230 of coverage D correspondence, to serve mobile device 210 by base station 240.For example, service end device 210 is earlier with after the online interruption between mobile device 220 and the base station 230, sets up online between mobile device 220 and the base station 240 again.Perhaps, service end device 210 is kept online between mobile device 220 and the base station 230, and after setting up online between mobile device 220 and the base station 240, interrupts online between mobile device 220 and the base station 230 again.
In addition, service end device 210 more can be predicted the transmission rate of downlink data according to the movement velocity in the positional information.For example, fast more when movement velocity, the transmission rate of downlink data then can be more little.
And the service end device also can determine whether base station shifting according to the movement velocity and the direction of motion of mobile device.Below illustrate for an embodiment again.Fig. 5 is the method flow diagram of the base station shifting that illustrates according to another embodiment of the present invention.Please in the present embodiment, suppose that equally mobile device 220 desires move to coverage A from coverage D simultaneously with reference to Fig. 2, Fig. 3 and Fig. 5, and suppose that base station 230 is arranged in the D of coverage, base station 240 is arranged in the A of coverage.
At first, in step S505, when mobile device 200 when coverage D moves to coverage A, service end device 210 can receive the positional information that mobile device 220 is transmitted.
Then, in step S510, service end device 210 judges by positional information whether mobile device 220 moves to coverage A from coverage D.That is to say that service end device 210 is compared position coordinates in the positional information and base station distribution data, whether be positioned at identical coverage with last time received positional information to judge the positional information that receives at present.
When still being positioned at coverage D if service end device 210 judgement mobile devices 220 do not move to coverage A, shown in step S520, service end device 210 is base station shifting not, and continues service mobile devices 220 by base station 230.
On the other hand, if service end device 210 is judged when mobile device 220 moves to coverage A, shown in step S515, service end device 210 can be again according to the direction of motion in the positional information and movement velocity, and whether prediction mobile device 220 desires to return coverage D.
When service end device 210 prediction mobile devices 220 desired to return coverage D, shown in step S520, service end device 210 is base station shifting not, and continues service mobile device 220 by base station 230.That is to say,, then do not switch to base station 240 if mobile device 220 can be got back to coverage D at short notice once again.On the contrary, when service end device 210 prediction mobile devices 220 did not return coverage D, shown in step S525,230 switched to base station 240 from the base station.
In addition, the foregoing description can be embedded in the computer program, computer program comprises all features of giving the enforcement of method described in the invention and function, and computer program can carry out these methods and function in being loaded computer system the time.
In sum, in the above-described embodiments, the service end device compares by the coverage that the base station covered and the actual geographical position of mobile device, determines whether that base station shifting provides service for mobile device, make the time point of switching more accurate according to this, and the situation of avoiding mistake to switch take place.
The above is preferred embodiment of the present invention only, is not to be used for limiting practical range of the present invention.Be that all equivalences of doing according to the content of the present patent application claim change and modification, all should be technology category of the present invention.
Claims (15)
1. the method for a base station shifting is applicable at mobile device when first coverage moves to second coverage, and switch to second base station by the service end device from first base station, method comprises:
Receive the positional information that mobile device transmitted, positional information is that mobile device obtains from global positioning system;
By positional information, obtain second coverage after mobile device moves; And
Mobile device is served in second base station that switches to the second coverage correspondence from first base station.
2. the method for base station shifting according to claim 1 is characterized in that also comprising after the step that receives the positional information that mobile device transmitted:
According to positional information, judge whether mobile device moves to second coverage; And
When mobile device does not move to second coverage and when still being positioned at first coverage, continues the service mobile device by first base station.
3. the method for base station shifting according to claim 2 is characterized in that in the foundation positional information, judges that whether mobile device moves to after the step of second coverage, also comprises:
When mobile device moved to second coverage, according to the direction of motion in the positional information and movement velocity, whether the prediction mobile device desired to return first coverage.
4. the method for base station shifting according to claim 3 is characterized in that also comprising after whether the prediction mobile device is desired to return the step of first coverage:
When the prediction mobile device desires to return first coverage, continue the service mobile device by first base station; And
When the prediction mobile device does not return first coverage, switch to second base station from first base station.
5. the method for base station shifting according to claim 1 is characterized in that also comprising:
The base station distribution data are provided, inquire about the base station distribution data, and obtain second coverage and the second corresponding base station at mobile device place with the foundation positional information.
6. the method for base station shifting according to claim 5 is characterized in that by positional information, obtains the step of second coverage after mobile device moves, and comprising:
Than position coordinates in the location information and base station distribution data, and obtain second coverage.
7. the method for base station shifting according to claim 1 is characterized in that also comprising after the step that obtains second coverage after mobile device moves:
According to the movement velocity in the positional information, the transmission rate of prediction downlink data.
8. the method for base station shifting according to claim 1 is characterized in that mobile device is mobile phone or personal digital assistant.
9. wireless communication system comprises:
Mobile device has global positioning system, utilizes global positioning system to obtain the positional information at mobile device place;
A plurality of base stations, the service that these base stations provided covers the coverage respectively; And
The service end device receives the positional information that mobile device transmitted, and according to positional information, switch to the present place of mobile device the coverage correspondence these base stations one of them, with the service mobile device.
10. wireless communication system according to claim 9 is characterized in that these base stations comprise first base station and second base station, and the service that first base station and second base station are provided covers first coverage and second coverage respectively.
11. wireless communication system according to claim 10, it is characterized in that when mobile device when first coverage moves to second coverage, the service end device is by positional information, obtain second coverage after mobile device moves, serve mobile device with second base station that switches to the second coverage correspondence from first base station.
12. wireless communication system according to claim 10, it is characterized in that the service end device also comprises according to positional information, judge whether mobile device moves to second coverage from first coverage, with when mobile device still is positioned at first coverage, continue the service mobile device by first base station.
13. wireless communication system according to claim 10, it is characterized in that when mobile device when first coverage moves to second coverage, the service end device more comprises according to the direction of motion in the positional information and movement velocity, whether the prediction mobile device desires to return first coverage, with when the prediction mobile device desires to return first coverage, continue the service mobile device by first base station, and when the prediction mobile device does not return first coverage, switch to second base station from first base station.
14. wireless communication system according to claim 9 is characterized in that the service end device comprises:
The base station distribution data, the service end device is inquired about the base station distribution data according to positional information, and obtains the coverage and the corresponding base station at mobile device place.
15. a computer program after computer loads computer program and carries out, can be finished the method for the described base station shifting of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810203385A CN101742585A (en) | 2008-11-26 | 2008-11-26 | Wireless communication system and base station switching method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810203385A CN101742585A (en) | 2008-11-26 | 2008-11-26 | Wireless communication system and base station switching method thereof |
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| CN101742585A true CN101742585A (en) | 2010-06-16 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102045797A (en) * | 2010-12-14 | 2011-05-04 | 迈普通信技术股份有限公司 | Method and system for accelerating cell switching in high-speed vehicle moving environment |
| CN102883387A (en) * | 2012-09-27 | 2013-01-16 | 大连环宇移动科技有限公司 | Base station switching method on basis of assistance of precision positioning messages |
| CN104080139A (en) * | 2013-03-27 | 2014-10-01 | 纬创资通股份有限公司 | Wireless mobile device, wireless communication service station, system and method |
| CN105684517A (en) * | 2015-10-23 | 2016-06-15 | 陈银芳 | Method and system for quickly switching service areas of handset |
| CN105897851A (en) * | 2015-12-21 | 2016-08-24 | 乐视致新电子科技（天津）有限公司 | Service area switching method, device and system for terminal device |
-
2008
- 2008-11-26 CN CN200810203385A patent/CN101742585A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102045797A (en) * | 2010-12-14 | 2011-05-04 | 迈普通信技术股份有限公司 | Method and system for accelerating cell switching in high-speed vehicle moving environment |
| CN102045797B (en) * | 2010-12-14 | 2013-03-06 | 迈普通信技术股份有限公司 | Method and system for accelerating cell switching in high-speed vehicle moving environment |
| CN102883387A (en) * | 2012-09-27 | 2013-01-16 | 大连环宇移动科技有限公司 | Base station switching method on basis of assistance of precision positioning messages |
| CN102883387B (en) * | 2012-09-27 | 2015-03-18 | 大连环宇移动科技有限公司 | Base station switching method on basis of assistance of precision positioning messages |
| CN104080139A (en) * | 2013-03-27 | 2014-10-01 | 纬创资通股份有限公司 | Wireless mobile device, wireless communication service station, system and method |
| CN105684517A (en) * | 2015-10-23 | 2016-06-15 | 陈银芳 | Method and system for quickly switching service areas of handset |
| WO2017066981A1 (en) * | 2015-10-23 | 2017-04-27 | 陈银芳 | Method and system for handing over service area during fast movement of mobile phone |
| CN105897851A (en) * | 2015-12-21 | 2016-08-24 | 乐视致新电子科技（天津）有限公司 | Service area switching method, device and system for terminal device |
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Application publication date: 20100616 |