CN101052221A - Communication small area switching method and device - Google Patents
Communication small area switching method and device Download PDFInfo
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- CN101052221A CN101052221A CNA2007100544369A CN200710054436A CN101052221A CN 101052221 A CN101052221 A CN 101052221A CN A2007100544369 A CNA2007100544369 A CN A2007100544369A CN 200710054436 A CN200710054436 A CN 200710054436A CN 101052221 A CN101052221 A CN 101052221A
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Abstract
The method comprises: the first fixed communication unit gets the location information and speed information of a first mobile communication unit and the location information and speed information of its neighboring mobile communication unit; according said obtained information, gets a safety factor; deciding if the safety factor is more than a preset threshold; if yes, the first fixed communication unit sends a switch instruction to the first mobile communication unit; the first mobile communication unit is switched to a neighboring cell.
Description
Technical field
The present invention relates to mobile communication technology, especially a kind of switching communication cell method and device belong to the mobile communication technology field.
Background technology
Mobile communication is developed by leaps and bounds mobile communications network extensive uses such as GSM, CDMA, satellite communication at present.Covering is finished jointly by a plurality of communication cells in a zone in the mobile communications network, when a mobile subscriber is conversing, when the coverage of certain communication cell moves to the coverage of another communication cell,, conversation just needs switching channels for not being interrupted.
Communication small area switching method at present commonly used is based on communication cell user's communications quality, signal level, interference and waits and judge whether that community user is carried out the sub-district to be switched.Entered the intersect overlay area of this communication cell with the adjacent communication sub-district when for example a mobile subscriber is conversing, at this moment its speech quality obviously reduces, and this just need switch to described adjacent communication sub-district from this communication cell with the mobile subscriber.
An above-mentioned changing method suitable cell user is a situation static or low-speed motion, but when the community user major part is in the state of high-speed motion, as on highway, with vehicular communication equipment as community user, these changing methods are not considered the speed factor of community user and positional factor each other, and are just not too suitable.
Summary of the invention
The objective of the invention is to not consider the defective of the speed factor of community user and positional factor each other, a kind of method that is switched and determined factor as communication cell with the position relation and the movement velocity of community user is provided at the method that communication cell in the prior art switches.
To achieve these goals, the invention provides a kind of communication small area switching method, this method may further comprise the steps:
Step 1: first fixed communication unit obtains the positional information of first mobile comm unit and the positional information and the velocity information of velocity information and adjacent mobile comm unit;
Step 2: described first fixed communication unit obtains coefficient of safety according to the positional information of described first mobile comm unit and the positional information and the velocity information of velocity information and adjacent mobile comm unit, and judge that whether described coefficient of safety is greater than pre-set threshold, if described coefficient of safety is greater than pre-set threshold, then execution in step 3;
Step 3: described first fixed communication unit sends switching command to described first mobile comm unit, and described first mobile comm unit switches to the adjacent communication sub-district.
In technique scheme, mobile comm unit is in the intersection overlay area of the communication cell of two band shapes, move towards adjacent communication sub-district direction, the fixed communication unit of sub-district is by communicating by letter with the mobile comm unit in this sub-district, grasp the positional information and the velocity information of each mobile comm unit in this sub-district in real time, by communication, can obtain the positional information and the velocity information of mobile comm unit in the neighbor cell in real time between the fixed communication unit of adjacent communication sub-district.
In the technical solutions according to the invention, fixed communication unit in the sub-district judges whether that according to the speed and the positional information of the mobile comm unit in this sub-district mobile comm unit is carried out the sub-district to be switched, and makes that the described method of invention is more suitable for the user of sub-district high speed motion is carried out the sub-district switching.
The present invention also provides the communication cell switching device shifter, comprising:
The signal transmitting and receiving module, be used to obtain the positional information of first mobile comm unit and the positional information and the velocity information of velocity information and adjacent mobile comm unit, and send switching command during greater than pre-set threshold to described first mobile comm unit when coefficient of safety;
Calculate judge module, be connected with described signal transmitting and receiving module, be used for according to the positional information of described first mobile comm unit and the positional information and the velocity information computationally secure coefficient of adjacent mobile comm unit, and judge that whether described coefficient of safety is greater than pre-set threshold.
Below by the drawings and specific embodiments, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is the flow chart of communication small area switching method specific embodiment one of the present invention;
Fig. 2 is the flow chart of communication small area switching method specific embodiment two of the present invention;
Fig. 3 is the flow chart of communication small area switching method specific embodiment three of the present invention;
Fig. 4 is the flow chart of communication small area switching method specific embodiment four of the present invention;
Fig. 5 is the flow chart of communication small area switching method specific embodiment five of the present invention;
Fig. 6 is the flow chart of communication small area switching method specific embodiment six of the present invention;
Fig. 7 is the flow chart of communication small area switching method specific embodiment seven of the present invention;
Fig. 8 is the flow chart of communication small area switching method specific embodiment eight of the present invention;
Fig. 9 is the flow chart of communication small area switching method specific embodiment nine of the present invention;
Figure 10 is the structural representation of communication cell switching device shifter specific embodiment one of the present invention.
Embodiment
Fig. 1 is the flow chart of communication small area switching method specific embodiment one of the present invention, first mobile comm unit is on highway among this embodiment, be in the overlapping region of first communication cell and second communication sub-district, towards second communication sub-district direction running, the rear of first mobile comm unit is second mobile comm unit, mobile comm unit also is in the overlapping region of first communication cell and second communication sub-district, and then this embodiment may further comprise the steps:
Step 101: first fixed communication unit obtains the positional information of first mobile comm unit and the positional information and the velocity information of velocity information and adjacent mobile comm unit;
Step 102: first fixed communication unit obtains coefficient of safety according to the positional information of first mobile comm unit and the positional information and the velocity information of velocity information and adjacent mobile comm unit, and judge that whether described coefficient of safety is greater than pre-set threshold (for example establishing this threshold value is 1), if described coefficient of safety is greater than pre-set threshold, then execution in step 103;
Step 103: first fixed communication unit sends switching command to the first mobile comm unit, and first mobile comm unit switches to the adjacent communication sub-district.
In the technique scheme, fixed communication unit judges whether that according to the speed and the positional information of the mobile comm unit in this sub-district mobile comm unit is carried out the sub-district to be switched, and makes that the described method of invention is more suitable for the user of sub-district high speed motion is carried out the sub-district switching.
Fig. 2 is the flow chart of communication small area switching method specific embodiment two of the present invention, as shown in Figure 2, this embodiment is on the basis of embodiment one, described step 102 is specially step 202: described first fixed communication unit obtains coefficient of safety according to the positional information of described first mobile comm unit and the positional information and the velocity information of velocity information and adjacent mobile comm unit, and judge that whether described coefficient of safety is greater than pre-set threshold, in this way, execution in step 103; Otherwise, execution in step 101;
This embodiment two is except that the advantage with embodiment one, if described first fixed communication unit does not satisfy switching condition, so just from newly beginning judgement.
Fig. 3 is the flow chart of communication small area switching method specific embodiment three of the present invention, as shown in Figure 3, this embodiment is on the basis of embodiment one, step 101 is specially step 301: first fixed communication unit obtains the positional information and the velocity information of described first mobile comm unit, and the velocity information and the positional information of adjacent second mobile comm unit in the described first mobile comm unit rear; Described step 102 is specially step 302: described first fixed communication unit identifies first distance of distance between described first mobile comm unit and described second mobile comm unit according to the positional information calculation of the positional information of described first mobile comm unit and described second mobile comm unit, and calculate described first distance of sign and the merchant's of the described second mobile comm unit speed coefficient of safety, and judge that whether described coefficient of safety is greater than pre-set threshold, in this way, execution in step 103; Otherwise, finish.
How this embodiment three also understands the computationally secure coefficient specifically except that the advantage with embodiment one.
In the above-mentioned specific embodiment three, described step 302 is specially step 402: described first fixed communication unit draws first distance that identifies distance between described first mobile comm unit and described second mobile comm unit according to the positional information of described first mobile comm unit and the positional information of described second mobile comm unit, draw the first speed difference ratio of sign first mobile comm unit speed and the described second mobile comm unit velocity ratio, draw described first distance of sign and described first fast first product that differs from the ratio product, draw the merchant's of described first product of sign and the described second mobile comm unit speed coefficient of safety, and judge that whether described coefficient of safety is greater than pre-set threshold, in this way, execution in step 103; Otherwise, finish.As shown in Figure 4, be the flow chart of communication small area switching method specific embodiment four of the present invention.
This embodiment four compares with embodiment three, and coefficient of safety has also been considered the factor of the first mobile comm unit speed and the described second mobile comm unit velocity ratio.
In the foregoing description three, when first mobile comm unit the place ahead has the mobile comm unit that switches communication cell or not, just first mobile comm unit and the described mobile comm unit that switches communication cell that has or not are switched communication cell simultaneously, be in the foregoing description three, also comprise before the step 103 step 102 ': described first fixed communication unit finds out all that be positioned at described first mobile comm unit the place ahead in this communication cell and does not switch to the mobile comm unit of adjacent communication sub-district; Described step 103 is specially step 503: described first fixed communication unit send switching command to described first mobile comm unit and described all do not switch to the mobile comm unit of adjacent communication sub-district, described first mobile comm unit and described all mobile comm units that do not switch to the adjacent communication sub-district switch to the adjacent communication sub-district.As shown in Figure 5, be the flow chart of communication small area switching method specific embodiment five of the present invention.
Fig. 6 is the flow chart of communication small area switching method specific embodiment six of the present invention, and as shown in Figure 6, this embodiment also comprises after the step 102 on the basis of embodiment one:
Step 1021: described first fixed communication unit sends solicited message that request switches communication cell second fixed communication unit to the adjacent communication sub-district;
Step 1022: described second fixed communication unit is judged whether traffic congestion of described adjacent communication sub-district, if, execution in step 1023; Otherwise, execution in step 1024.
Step 1023: the information that switching is disagreed with in described second fixed communication unit transmission finishes to described first fixed communication unit;
Step 1024: described second fixed communication unit sends the information of agreement switching to described first fixed communication unit, execution in step 103.
This embodiment removes has the advantage of embodiment one, and it has also considered the traffic congestion situation of adjacent communication sub-district.
Fig. 7 is the flow chart of communication small area switching method specific embodiment seven of the present invention, and as shown in Figure 7, this embodiment is on the basis of embodiment one, and step 103 is specially:
Step 1031: described first fixed communication unit sends the switching communication cell that includes described adjacent communication sub-district cell code and instructs to described first mobile comm unit;
Step 1032: described first mobile comm unit switches communication cell according to described adjacent communication sub-district cell code.
This embodiment removes has the advantage of embodiment one, and how it switches communication cell if also having specifically described.
Fig. 8 is the flow chart of communication small area switching method specific embodiment eight of the present invention, and as shown in Figure 8, this embodiment is on the basis of embodiment one:
Described step 101 is specially step 801: first fixed communication unit obtains the second adjacent mobile comm unit of described first mobile comm unit and its rear, the positional information and the velocity information of three mobile comm unit adjacent with described first mobile comm unit in the second communication sub-district;
Described step 102 is specially step 802: described first fixed communication unit obtains first coefficient of safety according to the positional information of described first mobile comm unit and the positional information and the velocity information of second mobile comm unit, and judge that whether described first coefficient of safety is greater than pre-set threshold, in this way, execution in step 103; Otherwise, execution in step 1021 ';
Step 1021 ': described first fixed communication unit draws the second distance that identifies distance between described first mobile comm unit and described the 3rd mobile comm unit according to the positional information of described first mobile comm unit and the positional information of described the 3rd mobile comm unit, draw the merchant's of described second distance of sign and the described first mobile comm unit speed second coefficient of safety, and judge that whether described second coefficient of safety is greater than pre-set threshold, as denying execution in step 103; Otherwise, finish.
This embodiment can also judge whether that this mobile comm unit is carried out the sub-district to be switched according to the positional information of the mobile comm unit in the neighbor cell of mobile comm unit the place ahead except that the advantage with embodiment one.
When fixed communication unit is about to roll away from first communication cell, and when not satisfying switching condition, just need force to switch to fixed communication unit, as shown in Figure 9, flow chart for communication small area switching method specific embodiment nine of the present invention, this embodiment is on the basis of embodiment two, also comprise after the described step 101 step 101 ': described first fixed communication unit judges that according to the positional information and the velocity information of described first mobile comm unit whether described first mobile comm unit rolls the time of the first communication cell needs away from less than default threshold values, if, execution in step 103; Otherwise, execution in step 202.
Figure 10 is the structural representation of the specific embodiment one of communication cell switching device shifter of the present invention, comprise signal transmitting and receiving module a and calculate judge module b, signal transmitting and receiving module a is connected with calculating judge module b, signal transmitting and receiving module a is used to obtain the positional information of first mobile comm unit and the positional information and the velocity information of velocity information and adjacent mobile comm unit, and sends switching command during greater than pre-set threshold to described first mobile comm unit when coefficient of safety; Calculate judge module b and be used for, and judge that whether described coefficient of safety is greater than pre-set threshold according to the positional information of described first mobile comm unit and the positional information and the velocity information computationally secure coefficient of adjacent mobile comm unit.
Communication cell switching device shifter of the present invention, speed and positional information according to the mobile comm unit in this sub-district judge whether that mobile comm unit is carried out the sub-district to be switched, and make that the described device of invention is more suitable for the user of sub-district high speed motion is carried out the sub-district switching.
It should be noted last that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not break away from the spirit and scope of technical solution of the present invention.
Claims (10)
1, a kind of communication small area switching method is characterized in that comprising following steps:
Step 1: first fixed communication unit obtains the positional information of first mobile comm unit and the positional information and the velocity information of velocity information and adjacent mobile comm unit;
Step 2: described first fixed communication unit obtains coefficient of safety according to the positional information of described first mobile comm unit and the positional information and the velocity information of velocity information and adjacent mobile comm unit, and judge that whether described coefficient of safety is greater than pre-set threshold, if described coefficient of safety is greater than pre-set threshold, then execution in step 3;
Step 3: described first fixed communication unit sends switching command to described first mobile comm unit, and described first mobile comm unit switches to the adjacent communication sub-district.
2, communication small area switching method according to claim 1, if it is characterized in that described coefficient of safety is less than pre-set threshold in the described step 2, then execution in step 1.
3, communication small area switching method according to claim 1, it is characterized in that described step 1 is specially: first fixed communication unit obtains the positional information and the velocity information of described first mobile comm unit, and the velocity information and the positional information of adjacent second mobile comm unit in the described first mobile comm unit rear.
4, communication small area switching method according to claim 3, it is characterized in that in the described step 2 that the concrete steps that obtain coefficient of safety are: described first fixed communication unit identifies first distance of distance between described first mobile comm unit and described second mobile comm unit according to the positional information calculation of the positional information of described first mobile comm unit and described second mobile comm unit, calculate sign described first apart from the merchant's of the described second mobile comm unit speed coefficient of safety; Or
Described first fixed communication unit draws first distance that identifies distance between described first mobile comm unit and described second mobile comm unit according to the positional information of described first mobile comm unit and the positional information of described second mobile comm unit, draw the first speed difference ratio of sign first mobile comm unit speed and the described second mobile comm unit velocity ratio, draw first product of described first distance of sign and the described first speed difference ratio product, draw the merchant's of described first product of sign and the described second mobile comm unit speed coefficient of safety.
5, according to the arbitrary described communication small area switching method of claim 1-4, it is characterized in that also comprising before the described step 3 step 2 ': described first fixed communication unit finds out all that be positioned at described first mobile comm unit the place ahead in this communication cell and does not switch to the mobile comm unit of adjacent communication sub-district; First fixed communication unit described in the described step 3 also sends switching command to all of described first mobile comm unit the place ahead in described first mobile comm unit and does not switch to the mobile comm unit of adjacent communication sub-district sending switching command, and the mobile comm unit that all of described first mobile comm unit and described first mobile comm unit the place ahead do not switch to the adjacent communication sub-district switches to the adjacent communication sub-district.
6,, it is characterized in that also comprising after the described step 2 according to the arbitrary described communication small area switching method of claim 1-4:
Step 21: described first fixed communication unit sends solicited message that request switches communication cell second fixed communication unit to the adjacent communication sub-district;
Step 22: described second fixed communication unit is judged whether traffic congestion of described adjacent communication sub-district, if, described second fixed communication unit send disagree with switching information to described first fixed communication unit, finish; Otherwise described second fixed communication unit sends the information of agreement switching to described first fixed communication unit, execution in step 3.
7, communication small area switching method according to claim 1 is characterized in that:
Described step 1 is specially: first fixed communication unit obtains the second adjacent mobile comm unit of described first mobile comm unit and its rear, the positional information and the velocity information of three mobile comm unit adjacent with described first mobile comm unit in the communication cell of the place ahead;
Described step 2 is specially: described first fixed communication unit obtains first coefficient of safety according to the positional information of described first mobile comm unit and the positional information and the velocity information of second mobile comm unit, and judge that whether described first coefficient of safety is greater than pre-set threshold, if described first coefficient of safety is greater than pre-set threshold, execution in step 3; If described first coefficient of safety is less than pre-set threshold, then execution in step 21 ';
Step 21 ': described first fixed communication unit draws the second distance that identifies distance between described first mobile comm unit and described the 3rd mobile comm unit according to the positional information of described first mobile comm unit and the positional information of described the 3rd mobile comm unit, draw the merchant's of described second distance of sign and the described first mobile comm unit speed second coefficient of safety, and judge that whether described second coefficient of safety is greater than pre-set threshold, if described second coefficient of safety is less than pre-set threshold, then execution in step 3.
8, according to the arbitrary described communication small area switching method of claim 1-4, it is characterized in that step 3 is specially:
Step 31: described first fixed communication unit sends the switching communication cell instruction of the cell code that includes described adjacent communication sub-district to described first mobile comm unit;
Step 32: described first mobile comm unit switches communication cell according to the cell code of described adjacent communication sub-district.
9,, it is characterized in that also comprising after the step 1 according to the arbitrary described communication small area switching method of claim 1-4:
Step 1 ': described first fixed communication unit judges that according to the positional information and the velocity information of described first mobile comm unit whether described first mobile comm unit rolls the time of the first fixed communication unit place communication cell needs away from less than default threshold values, if, execution in step 3; Otherwise, execution in step 2.
10, a kind of communication cell switching device shifter is characterized in that comprising:
The signal transmitting and receiving module, be used to obtain the positional information of first mobile comm unit and the positional information and the velocity information of velocity information and adjacent mobile comm unit, and send switching command during greater than pre-set threshold to described first mobile comm unit when coefficient of safety;
Calculate judge module, be connected with described signal transmitting and receiving module, be used for according to the positional information of described first mobile comm unit and the positional information and the velocity information computationally secure coefficient of adjacent mobile comm unit, and judge that whether described coefficient of safety is greater than pre-set threshold.
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|---|---|---|---|
| CN200710054436A CN101052221B (en) | 2007-05-22 | 2007-05-22 | Communication small area switching method and device |
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| CN200710054436A CN101052221B (en) | 2007-05-22 | 2007-05-22 | Communication small area switching method and device |
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| CN101052221A true CN101052221A (en) | 2007-10-10 |
| CN101052221B CN101052221B (en) | 2010-05-19 |
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| CN200710054436A Expired - Fee Related CN101052221B (en) | 2007-05-22 | 2007-05-22 | Communication small area switching method and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101841876B (en) * | 2009-03-20 | 2013-03-13 | 上海贝尔股份有限公司 | Transfer method and device between unauthorized mobile access network and honeycomb communication network |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1223218C (en) * | 2002-11-26 | 2005-10-12 | 华为技术有限公司 | Mobile terminal scheduling method in layered community system |
| CN1315339C (en) * | 2003-09-19 | 2007-05-09 | 华为技术有限公司 | Plot switchover decision method in linear covering network |
| CN100461959C (en) * | 2006-03-24 | 2009-02-11 | 华为技术有限公司 | Cell switching control method of high speed moving terminal |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101841876B (en) * | 2009-03-20 | 2013-03-13 | 上海贝尔股份有限公司 | Transfer method and device between unauthorized mobile access network and honeycomb communication network |
| US9001786B2 (en) | 2009-03-20 | 2015-04-07 | Alcatel Lucent | Handover methods between an unlicensed mobile access network and a cellular communication network and apparatuses thereof |
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| CN101052221B (en) | 2010-05-19 |
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