CN102457894A - Cell switching method, measuring method, device and system - Google Patents
Cell switching method, measuring method, device and system Download PDFInfo
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- CN102457894A CN102457894A CN201010527471XA CN201010527471A CN102457894A CN 102457894 A CN102457894 A CN 102457894A CN 201010527471X A CN201010527471X A CN 201010527471XA CN 201010527471 A CN201010527471 A CN 201010527471A CN 102457894 A CN102457894 A CN 102457894A
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Abstract
The invention relates to a cell switching method, a measuring method, a device and a system, wherein the cell switching method comprises the following steps of: sending first measuring control information to user equipment, wherein a first reporting threshold and a filtering coefficient corresponding to each of adjacent cells are carried in the first measuring control information, and at least two adjacent cells are corresponding to different filtering coefficients; receiving a signal quality value which is fit with the first reporting threshold and reported by the user equipment, of each of the adjacent cells, wherein the signal quality value of each of the adjacent cells is obtained after the measured signal quality value of each of the adjacent cells is filtered by the user equipment according to the filtering coefficient corresponding to each of adjacent cells; and judging to perform cell switching according to the signal quality value which is fit with the first reporting threshold reported by the user equipment, of each of the adjacent cells. According to the embodiment of the invention, the accuracy of a base station for judging the cell switching is increased.
Description
Technical field
The embodiment of the invention relates to the communication technology, relates in particular to a kind of cell switching method, method of measurement, equipment and system.
Background technology
At third generation partner program (The 3rd-Generation Partnership Project; Hereinafter to be referred as: 3GPP) Long Term Evolution (Long Term Evolution; Hereinafter to be referred as: LTE) in the system, subscriber equipment (User Equipment; Hereinafter to be referred as: when UE) carrying out the sub-district switching, generally include to switch and prepare and switch to carry out two stages.In handoff preparation phase, the physical layer of UE periodically detects Serving cell and signal quality of adjacent cells, and after the physical layer Filtering Processing, physical layer is periodically to radio resource control (Radio Resource Control; Hereinafter to be referred as: RRC) layer reports filtered signal quality; Rrc layer carries out Filtering Processing according to the related definition in 3GPP TS 36.331 standards to signal quality, and the signal quality of adjacent cells that UE will satisfy report condition is reported to evolved base station (Evolved Node B; Hereinafter to be referred as: eNB), the signal quality of eNB after according to Filtering Processing switches the sub-district to be judged.
In the prior art, after UE access, gravity treatment or switching to new sub-district, network side carries a filter factor through base station sending measuring control messages in measurement control message, and this filter factor is to all adjacent areas.
Yet; In the inconsistent scene of signal Changing Pattern of adjacent area; Like the coexistence of big or small base station; The signal variation characteristic of the handoff boundary of UE entering tunnel or Serving cell and adjacent area is different, and the method for prior art causes UE inaccurate to the assessment of signal quality of adjacent cells, thereby causes the base station inaccurate to the switching judging of sub-district.
Summary of the invention
One aspect of the present invention provides a kind of cell switching method; Comprise: issue first measurement control message to subscriber equipment; In this first measurement control message, carry first and report the thresholding filter factor corresponding, wherein at least two corresponding different filtering coefficients in adjacent area with each adjacent area; Receive each signal quality of adjacent cells value that satisfying of above-mentioned user equipment to report above-mentioned first reports thresholding, above-mentioned each signal quality of adjacent cells value is that above-mentioned subscriber equipment carries out obtaining after the Filtering Processing to above-mentioned each the signal quality of adjacent cells value that measures according to the corresponding filter factor in above-mentioned each adjacent area; Report each signal quality of adjacent cells value of thresholding to carry out cell switch determining according to satisfying of above-mentioned user equipment to report above-mentioned first.
The present invention provides a kind of cell measuring method on the other hand, comprising: the measurement control message according to the base station issues is obtained each signal quality of adjacent cells value, carries first in the above-mentioned measurement control message and reports thresholding; A plurality of signal quality values according to above-mentioned each adjacent area obtain the corresponding filter factor in above-mentioned each adjacent area; According to the corresponding filter factor in above-mentioned each adjacent area above-mentioned each signal quality of adjacent cells value is carried out Filtering Processing respectively; Report the signal quality value after the Filtering Processing of each adjacent area of thresholding to report above-mentioned base station with satisfying above-mentioned first.
Further aspect of the present invention provides a kind of base station; Comprise: first issues the unit; Be used for issuing first measurement control message to subscriber equipment; In above-mentioned first measurement control message, carry first and report the thresholding filter factor corresponding, wherein at least two corresponding different filtering coefficients in adjacent area with each adjacent area; First receiving element; Be used to receive each signal quality of adjacent cells value that satisfying of above-mentioned user equipment to report above-mentioned first reports thresholding, above-mentioned each signal quality of adjacent cells value is that above-mentioned subscriber equipment carries out obtaining after the Filtering Processing to above-mentioned each the signal quality of adjacent cells value that measures according to the corresponding filter factor in above-mentioned each adjacent area; And switch unit, be used for reporting each signal quality of adjacent cells value of thresholding to carry out cell switch determining according to satisfying of above-mentioned user equipment to report above-mentioned first.
Further aspect of the present invention also provides a kind of subscriber equipment, comprising: first acquiring unit, be used for obtaining each signal quality of adjacent cells value according to the measurement control message that the base station issues, and carry first in the above-mentioned measurement control message and report thresholding; Second acquisition unit is used for obtaining the corresponding filter factor in above-mentioned each adjacent area according to a plurality of signal quality values of above-mentioned each adjacent area; Filter unit is used for according to the corresponding filter factor in above-mentioned each adjacent area each signal quality of adjacent cells value being carried out Filtering Processing respectively; With report the unit, be used for reporting the filtered signal quality value of each adjacent area of thresholding to report above-mentioned base station with satisfying above-mentioned first.
Another aspect of the invention provides a kind of wireless communication system, comprises above-mentioned base station.
Another aspect of the invention also provides a kind of wireless communication system, comprises above-mentioned subscriber equipment.
The cell switching method of the embodiment of the invention, method of measurement, equipment and system; Issue the corresponding different filter factors in different adjacent areas through the base station to subscriber equipment; After subscriber equipment carries out Filtering Processing according to the different filtering coefficient to each the signal quality of adjacent cells value that measures; Report the signal quality of adjacent cells value of thresholding to be reported to the base station with satisfying first; Cell switch determining is carried out according to this signal quality value in the base station; Present embodiment uses the different filtering coefficient to different adjacent areas, has solved in the prior art to adopt identical filter factor to carry out the inaccurate defective of switching judging that Filtering Processing is brought to all adjacent areas, has improved the accuracy of base station to cell switch determining.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply; Obviously, the accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the flow chart of cell switching method embodiment one of the present invention;
Fig. 2 is the signaling diagram of cell switching method embodiment two of the present invention;
Fig. 3 is the signaling diagram of cell switching method embodiment three of the present invention;
Fig. 4 is the flow chart of cell measuring method embodiment one of the present invention;
Fig. 5 is the signaling diagram of cell measuring method embodiment two of the present invention;
Fig. 6 is the structural representation of base station embodiment one of the present invention;
Fig. 7 is the structural representation of base station embodiment two of the present invention;
Fig. 8 is the structural representation of subscriber equipment embodiment one of the present invention;
Fig. 9 is the structural representation of subscriber equipment embodiment two of the present invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer; To combine the accompanying drawing in the embodiment of the invention below; Technical scheme in the embodiment of the invention is carried out clear, intactly description; Obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Fig. 1 is the flow chart of cell switching method embodiment one of the present invention, and as shown in Figure 1, present embodiment provides a kind of cell switching method, can specifically comprise following content.
101; The base station issues first measurement control message (for example Measurement Control message) to subscriber equipment; In this first measurement control message, carry first and report the thresholding filter factor corresponding, wherein at least two corresponding different filtering coefficients in adjacent area with each adjacent area.
In the present embodiment, the base station is carried first and is reported thresholding and filter factor in first measurement control message that subscriber equipment issues.Wherein, first reports thresholding can be the thresholding that reports of switching judging incident, and filter factor is the corresponding filter factors in different adjacent areas, can be at least two different filter factors that different adjacent areas are corresponding, and this filter factor can rule of thumb be worth and chose this moment.First measurement control message here and first report thresholding be for the subsequent implementation example in second measurement control message and second report thresholding to distinguish, do not have other special implications, follow-up repeating no more.
102; Above-mentioned base station receives each signal quality of adjacent cells value that satisfying of above-mentioned user equipment to report above-mentioned first reports thresholding, and above-mentioned each signal quality of adjacent cells value is that above-mentioned subscriber equipment carries out obtaining after the Filtering Processing to each the signal quality of adjacent cells value that measures according to the corresponding filter factor in each adjacent area.
After subscriber equipment receives first measurement control message; Measure the signal of each adjacent area earlier; According to the corresponding filter factor in each adjacent area the signal of each adjacent area is carried out Filtering Processing, gets access to the corresponding filtered signal quality value in each adjacent area, judge this filtered signal quality value whether satisfy carry in first measurement control message first report thresholding; If satisfy, then report and satisfy this signal quality value to the base station.Wherein, above-mentioned signal quality value can comprise Reference Signal Received Power (Reference Signal ReceivedPower; Hereinafter to be referred as: RSRP) value and Reference Signal Received Quality (reference signal receivedquality; Hereinafter to be referred as: RSRQ) value.
103, the base station reports each signal quality of adjacent cells value of thresholding to carry out cell switch determining according to satisfying of above-mentioned user equipment to report above-mentioned first.
The base station receive user equipment to report satisfy first report each signal quality of adjacent cells value of thresholding after, carry out cell switch determining according to this signal quality value.
Because the base station issues the different filtering coefficient to the filter factor that subscriber equipment issues for being directed against different adjacent areas in the present embodiment; Two kinds of different filtering coefficients that perhaps issue at least two different adjacent areas correspondences are to subscriber equipment; But not the corresponding same filter factor in all adjacent areas of the prior art; Therefore, Filtering Processing obtains the signal quality of adjacent cells value that the base station gets access in order to carry out according to its corresponding filter factor, when cell switch determining is carried out according to this signal quality value in the base station; Neighboring area signal to different Changing Patterns carries out filtering in various degree, thereby makes switch decision more accurate.
Present embodiment provides a kind of cell switching method; Issue at least two different filter factors that different adjacent areas are corresponding through the base station to subscriber equipment; After subscriber equipment carries out Filtering Processing according to the different filtering coefficient to the signal quality of adjacent cells value that measures; Report the signal quality of adjacent cells value of thresholding to be reported to the base station with satisfying first; Carry out cell switch determining, solved in the prior art and adopted identical filter factor to carry out the inaccurate defective of switching judging that Filtering Processing is brought, improved the accuracy of base station cell switch determining to all adjacent areas.
Fig. 2 is the signaling diagram of cell switching method embodiment two of the present invention, and as shown in Figure 2, present embodiment provides a kind of concrete cell switching method, and wherein the base station is example with the evolution base station eNB, can specifically comprise following content.
201, eNB issues second measurement control message to UE, in second measurement control message, carries second and reports thresholding.
When UE after access, gravity treatment or switching to new sub-district; The eNB that is positioned at network side issues to UE and surveys the second amount control messages; In this second measurement control message, carry second and report thresholding; Here second to report thresholding be the thresholding that reports of measurement event, it is lower than first and reports thresholding, promptly is lower than the thresholding that reports of switching judging incident.The filter factor that in this second measurement control message, carries is all identical to all adjacent areas.Alternatively; Can report mode to be set to incident in second measurement control message and change the cycle; And setting reports number of times and report cycle accordingly; This precision that reports number of times and report cycle to ask according to actual needs is configured, and the concrete configuration value can be with reference to related definition among the 3GPP TS 36.331, wherein reports the number of times can be for repeatedly.
202, UE measures the signal of each adjacent area according to second measurement control message.
UE measures the signal of each adjacent area according to this second measurement control message after receiving second measurement control message, obtains each signal quality of adjacent cells value.UE can also carry out Filtering Processing to the signal of the adjacent area that measures according to the unified filter factor that carries in second measurement control message, and then gets access to the corresponding filtered signal quality value in each adjacent area.
203, UE reports the corresponding filtered signal quality value in each adjacent area of thresholding to report to eNB with a plurality of satisfied second.
UE is after getting access to the corresponding filtered signal quality value in each adjacent area; Judge that whether it satisfy second and report thresholding, promptly whether greater than the thresholding that reports of measurement event, if; Then UE will satisfy second and report each signal quality of adjacent cells value of thresholding to report to eNB, for example periodically report.The pattern that reports of UE is that incident is changeed the cycle in the present embodiment, promptly a certain signal quality of adjacent cells value satisfy measurement event report thresholding after, just begin periodically to report this signal quality of adjacent cells value.
204, eNB obtains the corresponding filter factor in each adjacent area respectively according to a plurality of signal quality values of each adjacent area that receives.
If UE is for periodically reporting, it is a plurality of that each signal quality of adjacent cells value that eNB receives is, and eNB can come to obtain respectively the corresponding filter factor in each adjacent area according to a plurality of signal quality values of each adjacent area that receives.In the present embodiment, the concrete obtain manner of filter factor can for: combine the extent of deviation of the signal value before the signal value and filtering after filtered signal standards difference and the filtering to select best filter factor according to real needs.
Particularly; This step 204 can specifically comprise the steps: at first; ENB utilizes different filter factors that user equipment to report a plurality of are satisfied above-mentioned second to report each signal quality of adjacent cells value of thresholding to carry out Filtering Processing, and gets access to the corresponding filtered signal quality value sequence in above-mentioned each adjacent area under the above-mentioned different filter factor.For filter factor, specifically defined its span in 3GPP TS 36.331 standards, therefrom to choose a plurality of different filter factors in this step and come analog filtering respectively, the filter factor in the present embodiment is specially filter factor K.Can report 20 signal quality values of an adjacent area with UE here is that example describes; ENB utilizes different filter factors earlier; According to preset filtering formula 20 signal quality values of each adjacent area are carried out Filtering Processing; Get access to the corresponding filtered signal quality value sequence in each adjacent area under the different filter factors, for example the filtering formula here can be the filtering formula that defines in 3GPP TS 36.331 standards.Secondly, eNB calculates the standard deviation of the corresponding filtered signal quality value sequence in above-mentioned each adjacent area respectively, generates first standard deviation of each signal quality of adjacent cells value.Once more, eNB calculates the standard deviation of the difference sequence of corresponding filtered signal quality value in above-mentioned each adjacent area and the signal quality value before the filtering respectively, generates the second standard difference of each signal quality of adjacent cells value.It is long-pending that eNB calculates above-mentioned first standard difference and the second standard difference of each adjacent area under the different filtering coefficient respectively then.At last, the filter factor that eNB is corresponding with the long-pending maximum of the above-mentioned second standard difference with the first standard difference of above-mentioned each adjacent area under different filter factors is as the corresponding filter factor in above-mentioned each adjacent area.
205, eNB issues first measurement control message to UE, in first measurement control message, carries first and reports the thresholding filter factor corresponding with each adjacent area, wherein at least two corresponding different filtering coefficients in adjacent area.
When eNB accomplishes after the obtaining of the corresponding filter factor in each adjacent area; Issue first measurement control message to UE; Be new measurement control message second measurement control message of first measurement control message in above-mentioned steps here, in this first measurement control message, carry first and report thresholding and the corresponding different filter factors in different adjacent areas that obtain.In this step; Can in first measurement control message, specifically comprise the corresponding relation between different adjacent areas and the filter factor; It is the corresponding relation of adjacent area ID and filter factor; Wherein, adjacent area ID can be the physical label (Phy ID) of adjacent area, can also be Cell Global Identity sign indicating number (the Cell Global Identifier of adjacent area; Hereinafter to be referred as: CGI), filter factor can be specially filter factor K.
206, UE upgrades filter factor according to first measurement control message.
UE is after receiving first measurement control message, and the corresponding filter factor of this locality being preserved according to the corresponding filter factor in each adjacent area of wherein carrying upgrades.This step is optional.
207, UE carries out Filtering Processing to the signal quality of adjacent cells value that measures respectively according to the corresponding filter factor in above-mentioned each adjacent area, and obtains filtered each signal quality of adjacent cells value.
UE uses the corresponding filter factor in above-mentioned each adjacent area respectively the signal quality of adjacent cells value that measures to be carried out Filtering Processing, and obtains the corresponding filtered signal quality value in each adjacent area.
208, UE will satisfy first and report the corresponding filtered signal quality value in adjacent area of thresholding to be reported to eNB.
Whether UE judges that whether it satisfy first and report thresholding after getting access to each signal quality of adjacent cells value, promptly greater than the thresholding that reports of switching judging incident, if then UE will satisfy first and report the signal quality of adjacent cells value of thresholding to report to eNB.
209, eNB carries out cell switch determining according to the signal quality value that UE reports.
ENB carries out cell switch determining according to this signal quality value after receiving each signal quality of adjacent cells value that UE reports.Because eNB obtains the corresponding different filter factors in different adjacent areas according to the neighboring cell signal quality value of UE real-time report in the present embodiment; But not all corresponding same filter factor in all adjacent areas of the prior art; Therefore; Filtering Processing obtains the signal quality of adjacent cells value that eNB gets access in order to carry out according to the corresponding filter factor in each adjacent area; When eNB carries out cell switch determining according to this signal quality value, can be fundamental basis then, thereby make switch decision more accurate with the Changing Pattern of the signal of adjacent area.
In the present embodiment, eNB can be the filter factor to each UE configuration UE level, also can be the filter factor to all UE allocating cell levels.For example, when the UE number filter factor of configuration UE level more after a little while, for example, the different signal quality of adjacent cells values that eNB reports according to UE1 and UE2 get access to the corresponding filter factor in different adjacent areas respectively and are handed down to UE1 and UE2 respectively; If UE more for a long time, the signal quality value that eNB can at first report according to different UEs obtains the corresponding filter factor in adjacent area respectively, again will be according to a plurality of UE; At least 20 UE for example; A plurality of filter factors of the same adjacent area that the signal quality value that reports obtains are handled the filter factor that obtains cell-level, for example, have 20 UE to report the signal quality value of adjacent area 1 respectively; The signal quality value that eNB reports according to these 20 UE has got access to 20 filter factors of adjacent area 1 respectively; ENB averages these 20 filter factors, with the filter factor of the filter factor after average as adjacent area 1, is handed down to all UE.
Present embodiment provides a kind of sub-district switching handling method; Issue the corresponding different filter factors in different adjacent areas through the base station to subscriber equipment; After subscriber equipment carries out Filtering Processing according to the different filtering coefficient to the signal quality of adjacent cells value that measures; Report the corresponding filtered signal quality value in each adjacent area of thresholding to be reported to the base station with satisfying first; Cell switch determining is carried out according to this signal quality value in the base station; Present embodiment uses the different filtering coefficient to different adjacent areas, has solved in the prior art to adopt identical filter factor to carry out the inaccurate defective of switching judging that Filtering Processing is brought to all adjacent areas, has improved the accuracy of base station to cell switch determining.
Fig. 3 is the signaling diagram of cell switching method embodiment three of the present invention, and as shown in Figure 3, present embodiment provides a kind of concrete cell switching method, can specifically comprise following content.
301, eNB carries first and reports the thresholding filter factor corresponding with each adjacent area to UE sending measuring control messages in measurement control message, wherein, and at least two corresponding different filtering coefficients of adjacent area difference.
In the present embodiment; When UE after access, gravity treatment or switching to new sub-district; The eNB of network side is to UE sending measuring control messages; In measurement control message, carry first and report thresholding and filter factor, here first to report thresholding be the thresholding that reports of switching judging incident, the different filtering coefficients are used at least two different adjacent areas.The difference of present embodiment and the foregoing description two is the not coefficient of match different filtering again, and selects empirical value, and promptly this filter factor can be for selected according to different districts sideband signal variation characteristic and experience.Can specifically comprise the corresponding relation between at least two different adjacent areas and the filter factor in the measurement control message of this step, i.e. adjacent area ID and filter factor corresponding relation, wherein, adjacent area ID can be the physical label Phy ID of adjacent area, can also be the CGI of adjacent area.
302, UE carries out Filtering Processing to each the signal quality of adjacent cells value that measures respectively according to the corresponding filter factor in each adjacent area.
UE uses the corresponding filter factor in each adjacent area respectively the signal quality of adjacent cells value that measures to be carried out Filtering Processing, and obtains the corresponding filtered signal quality value in each adjacent area.
303, UE will satisfy first and report the corresponding filtered signal quality value in adjacent area of thresholding to be reported to eNB.
UE is after getting access to the corresponding filtered signal quality value in each adjacent area; Judge whether it satisfies first and report thresholding; Promptly whether greater than the thresholding that reports of switching judging incident, if then UE will satisfy first and report the signal quality of adjacent cells value of thresholding to report to eNB.
304, eNB carries out cell switch determining according to the signal quality value that UE reports.
ENB carries out cell switch determining according to this signal quality value after receiving each signal quality of adjacent cells value that UE reports.Because the filter factor that eNB issues to UE in the present embodiment is at least two different filter factors that different adjacent areas obtain; But not the corresponding same filter factor in all adjacent areas of the prior art; Therefore, Filtering Processing obtains the signal quality of adjacent cells value that eNB gets access in order to carry out according to its corresponding filter factor, when eNB carries out cell switch determining according to this signal quality value; Can be foundation then, thereby make switch decision more accurate with the Changing Pattern of the signal of adjacent area.
Present embodiment provides a kind of cell switching method; Issue at least two different filter factors that different adjacent areas are corresponding through the base station to subscriber equipment; After subscriber equipment carries out Filtering Processing according to different filter factors to the signal of the adjacent area that measures; Report the signal quality of adjacent cells value of thresholding to be reported to the base station with satisfying first, cell switch determining is carried out according to this signal quality value in the base station; Present embodiment uses the different filtering coefficient to different adjacent areas; Solved in the prior art and adopted identical filter factor to carry out the inaccurate defective of switching judging that Filtering Processing is brought, improved the accuracy of base station cell switch determining to all adjacent areas.
Fig. 4 is the flow chart of cell measuring method embodiment one of the present invention, and as shown in Figure 4, present embodiment provides a kind of cell measuring method, can specifically comprise following content.
401, the measurement control message that subscriber equipment issues according to the base station is obtained each signal quality of adjacent cells value, carries first in the above-mentioned measurement control message and reports thresholding.
In the present embodiment, after subscriber equipment access, gravity treatment or switching to new sub-district, the base station of network side can be carried first and report thresholding to subscriber equipment sending measuring control messages in this measurement control message, and promptly the switching judging incident reports thresholding.Subscriber equipment is measured the signal of each adjacent area according to this measurement control message, and obtains each signal quality of adjacent cells value.
402, subscriber equipment obtains the corresponding different filter factors in above-mentioned each adjacent area according to a plurality of signal quality values of above-mentioned each adjacent area.
Subscriber equipment gets access to each signal quality of adjacent cells value, can obtain the corresponding different filter factors in this adjacent area to a plurality of signal quality values that same adjacent area obtains.The method that concrete acquisition methods refer step 204 is above-mentioned.
403, subscriber equipment carries out Filtering Processing according to the corresponding filter factor in above-mentioned each adjacent area to the signal quality of adjacent cells value.
Subscriber equipment carries out Filtering Processing according to the different filtering coefficient to the signal of the adjacent area that measures, and further obtains the corresponding filtered signal quality value in each adjacent area behind the filter factor of each sub-district that obtains obtaining.
404, subscriber equipment will satisfy first and report the corresponding filtered signal quality value in each adjacent area of thresholding to report above-mentioned base station.
Subscriber equipment will satisfy first and report the corresponding filtered signal quality value in each adjacent area of thresholding to be reported to the base station, carry out cell switch determining by the base station according to this filtered signal quality value.
The difference of present embodiment and the foregoing description is; The acquisition process of the filter factor that each adjacent area is corresponding is carried out in subscriber equipment one side; UE obtains filter factor according to the signal quality that measures in real time in the present embodiment; Adopt the different filtering coefficient to different adjacent areas, but not all corresponding same filter factor in all adjacent areas of the prior art, therefore; Filtering Processing obtains the signal quality of adjacent cells value that the base station gets access in order to carry out according to its corresponding filter factor; When the base station is carried out decision process according to this signal quality value to the sub-district switching, carry out filtering in various degree to the signal quality of adjacent cells value of different Changing Patterns, thereby make switch decision more accurate.
Present embodiment provides a kind of cell measuring method; Obtain each signal quality of adjacent cells value through subscriber equipment according to measurement control message; And obtain the corresponding filter factor in different adjacent areas according to a plurality of signal quality values; After according to the different filtering coefficient signal of the adjacent area that measures being carried out Filtering Processing again; Report the signal quality of adjacent cells value of thresholding to be reported to the base station with satisfying first, the base station can be switched the sub-district according to signal quality value more accurately and carried out decision process, and present embodiment uses the different filtering coefficient to different adjacent areas; Solved in the prior art and adopted identical filter factor to carry out the inaccurate defective of switching judging that Filtering Processing is brought, improved the accuracy of base station cell switch determining to all adjacent areas.
Fig. 5 is the signaling diagram of cell measuring method embodiment two of the present invention, and as shown in Figure 5, present embodiment provides a kind of concrete cell measuring method, can specifically comprise following content.
501, UE receives the measurement control message that eNB issues, and in measurement control message, carries first and reports thresholding.
When UE after access, gravity treatment or switching to new sub-district, the eNB that is positioned at network side carries first and reports thresholding to UE sending measuring control messages in this measurement control message, here first to report thresholding be the thresholding that reports of switching judging incident.
502, UE measures the signal of each adjacent area according to measurement control message.
UE measures the signal of each adjacent area according to this measurement control message after receiving measurement control message, and UE can obtain corresponding a plurality of signal quality values to an adjacent area in the present embodiment.
503, UE obtains the corresponding filter factor in each adjacent area respectively according to a plurality of signal quality values of each adjacent area that receives.
UE comes to obtain respectively the corresponding filter factor in each adjacent area according to a plurality of signal quality values of the adjacent area that gets access to.In the present embodiment, the concrete obtain manner of filter factor can for: combine the extent of deviation of the signal value before the signal value and filtering after filtered signal standards difference and the filtering to select best filter factor according to real needs.
Particularly; 503 can specifically comprise the steps: at first; UE utilizes different filter factors to report each signal quality of adjacent cells value of thresholding to carry out Filtering Processing to satisfying of user equipment to report above-mentioned second, and gets access to the corresponding filtered signal quality value sequence in above-mentioned each adjacent area under the above-mentioned different filter factor.For filter factor, specifically defined its span in 3GPP TS 36.331 standards, therefrom to choose a plurality of different filtering coefficients in this step and come analog filtering respectively, the filter factor in the present embodiment is specially filter factor K.Can report 20 signal quality values of an adjacent area with UE here is that example describes; UE utilizes different filter factors earlier; According to preset filtering formula 20 signal quality values of each adjacent area of getting access to are carried out Filtering Processing; Obtain the corresponding filtered signal quality value sequence in each adjacent area under the different filter factors, the filtering formula here also can be the filtering formula that defines in 3GPP TS 36.331 standards.Secondly, UE calculates the standard deviation of the corresponding filtered signal quality value sequence in above-mentioned each adjacent area respectively, generates first standard deviation of each signal quality of adjacent cells value.Once more, eNB calculates the standard deviation of the difference sequence of corresponding filtered signal quality value in above-mentioned each adjacent area and the signal quality value before the filtering respectively, generates the second standard difference of each signal quality of adjacent cells value.It is long-pending that UE calculates above-mentioned first standard difference and the second standard difference of each adjacent area under different filter factors respectively then.At last, the filter factor that UE is corresponding with the long-pending maximum of the above-mentioned second standard difference with the first standard difference of above-mentioned each adjacent area under different filter factors is as the corresponding filter factor in above-mentioned each adjacent area.
504, UE carries out Filtering Processing to the signal quality of adjacent cells value that measures respectively according to the corresponding filter factor in each adjacent area, and obtains the corresponding filtered signal quality value in each adjacent area.
UE uses the corresponding filter factor in each adjacent area respectively the signal quality of adjacent cells value that measures to be carried out Filtering Processing, and obtains the corresponding filtered signal quality value in each adjacent area.
505, UE will satisfy first and report the corresponding filtered signal quality value in adjacent area of thresholding to be reported to eNB.
Whether UE judges that whether it satisfy first and report thresholding after getting access to each signal quality of adjacent cells value, promptly greater than the thresholding that reports of switching judging incident, if then UE will satisfy first and report the signal quality of adjacent cells value of thresholding to report to eNB.After eNB receives each signal quality of adjacent cells value that UE reports, according to this signal quality value the sub-district is switched and to carry out decision process.Because UE carries out the different filtering coefficient of filter factor for obtaining to different adjacent areas of Filtering Processing in the present embodiment to the signal quality of adjacent cells value; But not all corresponding same filter factor in all adjacent areas of the prior art; Therefore; Filtering Processing obtains the signal quality of adjacent cells value that eNB gets access in order to carry out according to its corresponding filter factor; ENB switches when carrying out decision process the sub-district according to this signal quality value, can be foundation with the Changing Pattern of the signal of adjacent area then, thereby make switch decision more accurate.
Present embodiment provides a kind of cell measuring method; Obtain each signal quality of adjacent cells value through subscriber equipment according to measurement control message; And obtain the corresponding filter factor in different adjacent areas according to a plurality of signal quality values; After according to the different filtering coefficient signal of the adjacent area that measures being carried out Filtering Processing again; Report the signal quality of adjacent cells value of thresholding to be reported to the base station with satisfying first, make the base station to switch the sub-district according to signal quality value more accurately and carry out decision process, present embodiment uses the different filtering coefficient to different adjacent areas; Solved in the prior art and adopted identical filter factor to carry out the inaccurate defective of switching judging that Filtering Processing is brought, improved the accuracy of base station cell switch determining to all adjacent areas.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be accomplished through the relevant hardware of program command; Aforesaid program can be stored in the computer read/write memory medium; This program the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
Fig. 6 is the structural representation of base station embodiment one of the present invention, and as shown in Figure 6, present embodiment provides a kind of base station, can specifically carry out the step among the said method embodiment one, repeats no more here.The base station that present embodiment provides can comprise that first issues unit 601, first receiving element 602 and switch unit 603.Wherein, first issues unit 601 is used for issuing first measurement control message to subscriber equipment, in above-mentioned first measurement control message, carries first and reports the thresholding filter factor corresponding with each adjacent area, wherein at least two corresponding different filtering coefficients in adjacent area.First receiving element 602 is used to receive each signal quality of adjacent cells value that satisfying of above-mentioned user equipment to report above-mentioned first reports thresholding, and above-mentioned signal quality of adjacent cells value is that above-mentioned subscriber equipment carries out obtaining after the Filtering Processing to above-mentioned each the signal quality of adjacent cells value that measures according to the corresponding filter factor in above-mentioned adjacent area.Switch unit 603 is used for reporting each signal quality of adjacent cells value of thresholding to carry out cell switch determining according to satisfying of above-mentioned user equipment to report above-mentioned first.
Fig. 7 is the structural representation of base station embodiment two of the present invention, and as shown in Figure 7, present embodiment provides a kind of base station, can specifically carry out the step among said method embodiment two and the embodiment three, repeats no more here.The base station that present embodiment provides can also comprise that second issues unit 604, second receiving element 605 and first acquiring unit 606 on above-mentioned basis shown in Figure 6.Wherein, Second issues unit 604 was used for above-mentioned before subscriber equipment sending measuring control messages; Issue second measurement control message to subscriber equipment, in above-mentioned second measurement control message, carry second and report thresholding, above-mentioned second reports thresholding to be lower than above-mentioned first reports thresholding.Second receiving element 605 is used to receive above-mentioned user equipment to report a plurality of satisfy above-mentioned second report thresholding each signal quality of adjacent cells value.First acquiring unit 606 is used for satisfying above-mentioned second according to user equipment to report a plurality of and reports each signal quality of adjacent cells value of thresholding to obtain the corresponding filter factor in each adjacent area respectively.
Further, first acquiring unit 606 in the base station that provides of present embodiment can specifically comprise filtering subelement 616, first computation subunit 626, second computation subunit 636, audit of economy operator unit 646 and chooser unit 656.Wherein, Filtering subelement 616 is used to utilize different filter factors that above-mentioned user equipment to report a plurality of are satisfied above-mentioned second to report each signal quality of adjacent cells value of thresholding to carry out Filtering Processing, obtain the corresponding filtered signal quality value sequence in above-mentioned each adjacent area under the above-mentioned different filter factor.First computation subunit 626 is used for calculating respectively the standard deviation of the corresponding filtered signal quality value sequence in above-mentioned each adjacent area, generates the first standard difference of above-mentioned each signal quality of adjacent cells value.Second computation subunit 636 is used for calculating respectively the standard deviation of the difference sequence of the preceding signal quality value of the corresponding filtered signal quality value in above-mentioned each adjacent area and filtering, generates the second standard difference of above-mentioned each signal quality of adjacent cells value.It is long-pending that audit of economy operator unit 646 is used for calculating respectively above-mentioned first standard difference and the above-mentioned second standard difference of above-mentioned each adjacent area under different filter factors.Chooser unit 656 is used for the filter factor that the first standard difference of above-mentioned each adjacent area under above-mentioned different filter factors is corresponding with the long-pending maximum of the above-mentioned second standard difference respectively as the corresponding filter factor in above-mentioned each adjacent area.
Further, the base station that present embodiment provides can also comprise second acquisition unit, and second acquisition unit is used for a plurality of filter factors that the same adjacent area of a plurality of user equipment to report is corresponding and averages, and obtains the corresponding filter factor in above-mentioned same adjacent area.
Present embodiment provides a kind of base station; Issue the corresponding filter factor in different adjacent areas through the base station to subscriber equipment; After subscriber equipment carries out Filtering Processing according to the different filtering coefficient to the signal of the adjacent area that measures; Report the signal quality of adjacent cells value of thresholding to be reported to the base station with satisfying first, cell switch determining is carried out according to this signal quality value in the base station, and present embodiment uses the different filtering coefficient to different adjacent areas; Solved in the prior art and adopted identical filter factor to carry out the inaccurate defective of switching judging that Filtering Processing is brought, improved the accuracy of base station cell switch determining to all adjacent areas.
Fig. 8 is the structural representation of subscriber equipment embodiment one of the present invention, and as shown in Figure 8, present embodiment provides a kind of subscriber equipment, can specifically carry out the step among the said method embodiment four, repeats no more here.The subscriber equipment that present embodiment provides can comprise first acquiring unit 801, second acquisition unit 802, filter unit 803 and report unit 804.Wherein, first acquiring unit 801 is used for obtaining each signal quality of adjacent cells value according to the measurement control message that the base station issues, and carries first in the above-mentioned measurement control message and reports thresholding.Second acquisition unit 802 is used for obtaining the corresponding different filter factors in each adjacent area according to a plurality of signal quality values of above-mentioned each adjacent area.Filter unit 803 is used for according to the corresponding filter factor in above-mentioned each adjacent area each signal quality of adjacent cells value being carried out Filtering Processing respectively.Report unit 804 to be used for reporting the filtered signal quality value of each adjacent area of thresholding to report above-mentioned base station with satisfying above-mentioned first.
Fig. 9 is the structural representation of subscriber equipment embodiment two of the present invention, and as shown in Figure 9, present embodiment provides a kind of subscriber equipment, can specifically carry out the step among the said method embodiment five, repeats no more here.The subscriber equipment that present embodiment provides is on above-mentioned basis shown in Figure 8, and second acquisition unit 802 can specifically comprise filtering subelement 812, first computation subunit 822, second computation subunit 832, audit of economy operator unit 842 and chooser unit 852.Wherein, filtering subelement 812 is used to utilize different filter factors that a plurality of signal quality values of each adjacent area of getting access to are carried out Filtering Processing, obtains the corresponding filtered signal quality value sequence in above-mentioned each adjacent area under the above-mentioned different filter factor.First computation subunit 822 is used for calculating respectively the standard deviation of the corresponding filtered signal quality value sequence in above-mentioned each adjacent area, generates the first standard difference of above-mentioned each adjacent area.Second computation subunit 832 is used for calculating respectively the standard deviation of the difference sequence of the signal quality value before the corresponding filtered signal quality value in above-mentioned each adjacent area and the filtering, the second standard difference of above-mentioned each adjacent area of generation.It is long-pending that audit of economy operator unit 842 is used for calculating respectively above-mentioned first standard difference and the above-mentioned second standard difference of above-mentioned each adjacent area under above-mentioned different filter factors.Chooser unit 852 is used for the filter factor that the above-mentioned first standard difference of above-mentioned each adjacent area under above-mentioned different filter factors is corresponding with the long-pending maximum of the above-mentioned second standard difference respectively as the corresponding filter factor in above-mentioned each adjacent area.
Present embodiment provides a kind of subscriber equipment; Obtain each signal quality of adjacent cells value through subscriber equipment according to measurement control message; And obtain the corresponding filter factor in different adjacent areas according to a plurality of signal quality values; After according to the different filtering coefficient signal of the adjacent area that measures being carried out Filtering Processing again; Report the signal quality of adjacent cells value of thresholding to be reported to the base station with satisfying first, the base station can be switched the sub-district according to signal quality value more accurately and carried out decision process, and present embodiment uses the different filtering coefficient to different adjacent areas; Solved in the prior art and adopted identical filter factor to carry out the inaccurate defective of switching judging that Filtering Processing is brought, improved the accuracy of base station cell switch determining to all adjacent areas.
Present embodiment also provides a kind of wireless communication system, can comprise above-mentioned Fig. 6 or base station shown in Figure 7.Can also comprise corresponding user equipment alternatively.
Present embodiment also provides another kind of wireless communication system, can comprise above-mentioned Fig. 8 or subscriber equipment shown in Figure 9.Can also comprise relevant base station alternatively.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (14)
1. a cell switching method is characterized in that, comprising:
Issue first measurement control message to subscriber equipment, in said first measurement control message, carry first and report the thresholding filter factor corresponding, wherein at least two corresponding different filtering coefficients in adjacent area with each adjacent area;
Receive each signal quality of adjacent cells value that satisfying of said user equipment to report said first reports thresholding, said each signal quality of adjacent cells value is that said subscriber equipment carries out obtaining after the Filtering Processing to said each the signal quality of adjacent cells value that measures according to the corresponding filter factor in said each adjacent area;
Report each signal quality of adjacent cells value of thresholding to carry out cell switch determining according to satisfying of said user equipment to report said first.
2. method according to claim 1 is characterized in that,, before subscriber equipment issues first measurement control message, also comprises said:
Issue second measurement control message to subscriber equipment, in said second measurement control message, carry second and report thresholding, said second reports thresholding to be lower than said first reports thresholding;
Receive said user equipment to report a plurality of satisfy said second report thresholding each signal quality of adjacent cells value;
Satisfying said second according to said user equipment to report a plurality of reports each signal quality of adjacent cells value of thresholding to obtain the corresponding filter factor in said each adjacent area.
3. method according to claim 2 is characterized in that, saidly satisfies said second according to said user equipment to report a plurality of and reports each signal quality of adjacent cells value of thresholding to obtain the corresponding filter factor in said each adjacent area to comprise:
Utilize different filter factors that said user equipment to report a plurality of are satisfied said second and report each signal quality of adjacent cells value of thresholding to carry out Filtering Processing, obtain the corresponding filtered signal quality value sequence in said each adjacent area under the said different filter factor;
Calculate the standard deviation of the corresponding filtered signal quality value sequence in said each adjacent area respectively, generate the first standard difference of said each signal quality of adjacent cells value;
Calculate the standard deviation of the difference sequence of corresponding filtered signal quality value in said each adjacent area and the signal quality value before the filtering respectively, generate the second standard difference of said each signal quality of adjacent cells value;
It is long-pending to calculate said first standard difference and the said second standard difference of said each adjacent area under said different filter factors respectively;
The filter factor that the said first standard difference of said each adjacent area under said different filter factors is corresponding with the long-pending maximum of the said second standard difference is respectively as the corresponding filter factor in said each adjacent area.
4. according to claim 2 or 3 described methods, it is characterized in that said method also comprises:
The filter factor that the same adjacent area of a plurality of user equipment to report is corresponding averages, and obtains the corresponding filter factor in said same adjacent area.
5. a cell measuring method is characterized in that, comprising:
Measurement control message according to the base station issues is obtained each signal quality of adjacent cells value, carries first in the said measurement control message and reports thresholding;
A plurality of signal quality values according to said each adjacent area obtain the corresponding filter factor in said each adjacent area;
According to the corresponding filter factor in said each adjacent area said each signal quality of adjacent cells value is carried out Filtering Processing respectively;
Report the corresponding filtered signal quality value in each adjacent area of thresholding to report said base station with satisfying said first.
6. method according to claim 5 is characterized in that, said a plurality of signal quality values according to said each adjacent area obtain the corresponding filter factor in said each adjacent area and comprise:
Utilize different filter factors that a plurality of signal quality values of each adjacent area of getting access to are carried out Filtering Processing, obtain the corresponding filtered signal quality value sequence in said each adjacent area under the said different filter factor;
Calculate the standard deviation of the corresponding filtered signal quality value sequence in said each adjacent area respectively, generate the first standard difference of said each signal quality of adjacent cells;
Calculate the standard deviation of the difference sequence of corresponding filtered signal quality value in said each adjacent area and said signal quality value respectively, generate the second standard difference of said each signal quality of adjacent cells;
It is long-pending to calculate said first standard difference and the said second standard difference of said each adjacent area under said different filter factors respectively;
The filter factor that the said first standard difference of said each adjacent area under said different filter factors is corresponding with the long-pending maximum of the said second standard difference is respectively as the corresponding filter factor in said each adjacent area.
7. a base station is characterized in that, comprising:
First issues the unit, is used for issuing first measurement control message to subscriber equipment, in said first measurement control message, carries first and reports the thresholding filter factor corresponding with each adjacent area, wherein at least two corresponding different filtering coefficients in adjacent area;
First receiving element; Be used to receive each signal quality of adjacent cells value that satisfying of said user equipment to report said first reports thresholding, said each signal quality of adjacent cells value is that said subscriber equipment carries out obtaining after the Filtering Processing to said each the signal quality of adjacent cells value that measures according to the corresponding filter factor in said each adjacent area; With
Switch unit is used for reporting each signal quality of adjacent cells value of thresholding to carry out cell switch determining according to satisfying of said user equipment to report said first.
8. base station according to claim 7 is characterized in that, also comprises:
Second issues the unit; Be used for said before subscriber equipment issues first measurement control message; Issue second measurement control message to subscriber equipment, in said second measurement control message, carry second and report thresholding, said second reports thresholding to be lower than said first reports thresholding;
Second receiving element, be used to receive said user equipment to report a plurality of satisfy said second report thresholding each signal quality of adjacent cells value; With
First acquiring unit is used for satisfying said second according to said user equipment to report a plurality of and reports each signal quality of adjacent cells value of thresholding to obtain the corresponding filter factor in said each adjacent area respectively.
9. base station according to claim 8 is characterized in that, said first acquiring unit comprises:
The filtering subelement; Be used to utilize different filter factors that said user equipment to report a plurality of are satisfied said second and report each signal quality of adjacent cells value of thresholding to carry out Filtering Processing, obtain the corresponding filtered signal quality value sequence in said each adjacent area under the said different filter factor;
First computation subunit is used for calculating respectively the standard deviation of the corresponding filtered signal quality value sequence in said each adjacent area, generates the first standard difference of said each signal quality of adjacent cells value;
Second computation subunit is used for calculating respectively the standard deviation of the difference sequence of the preceding signal quality value of the corresponding filtered signal quality value in said each adjacent area and filtering, generates the second standard difference of said each signal quality of adjacent cells value;
Audit of economy operator unit, it is long-pending to be used for calculating respectively said first standard difference and the said second standard difference of said each adjacent area under said different filter factors; With
The chooser unit is used for the filter factor that the said first standard difference of said each adjacent area under said different filter factors is corresponding with the long-pending maximum of the said second standard difference respectively as the corresponding filter factor in said each adjacent area.
10. according to Claim 8 or 9 described base stations, it is characterized in that, also comprise:
Second acquisition unit is used for a plurality of filter factors that the same adjacent area of a plurality of user equipment to report is corresponding and averages, and obtains the corresponding filter factor in said same adjacent area.
11. a subscriber equipment is characterized in that, comprising:
First acquiring unit is used for obtaining each signal quality of adjacent cells value according to the measurement control message that the base station issues, and carries first in the said measurement control message and reports thresholding;
Second acquisition unit is used for obtaining the corresponding filter factor in said each adjacent area according to a plurality of signal quality values of said each adjacent area;
Filter unit is used for according to the corresponding filter factor in said each adjacent area said each signal quality of adjacent cells value being carried out Filtering Processing respectively; With
Report the unit, be used for reporting the corresponding filtered signal quality value in each adjacent area of thresholding to report said base station satisfying said first.
12. subscriber equipment according to claim 11 is characterized in that, said second acquisition unit comprises:
The filtering subelement is used to utilize different filter factors that a plurality of signal quality values of each adjacent area of getting access to are carried out Filtering Processing, obtains the corresponding filtered signal quality value sequence in said each adjacent area under the said different filter factor;
First computation subunit is used for calculating respectively the standard deviation of the corresponding filtered signal quality value sequence in said each adjacent area, generates the first standard difference of said each adjacent area;
Second computation subunit is used for calculating respectively the standard deviation of the difference sequence of the signal quality value before the corresponding filtered signal quality value in said each adjacent area and the filtering, the second standard difference of said each adjacent area of generation;
Audit of economy operator unit, it is long-pending to be used for calculating respectively said first standard difference and the said second standard difference of said each adjacent area under said different filter factors; With
The chooser unit is used for the filter factor that the said first standard difference of said each adjacent area under said different filter factors is corresponding with the long-pending maximum of the said second standard difference respectively as the corresponding filter factor in said each adjacent area.
13. a wireless communication system is characterized in that, comprises each described base station among the aforesaid right requirement 7-10.
14. a wireless communication system is characterized in that, comprises aforesaid right requirement 11 or 12 described subscriber equipmenies.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010527471.XA CN102457894B (en) | 2010-10-27 | 2010-10-27 | Cell switching method, method of measurement, equipment and system |
| PCT/CN2011/081215 WO2012055342A1 (en) | 2010-10-27 | 2011-10-25 | Cell handover method, measurement method, device and system |
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| CN201010527471.XA CN102457894B (en) | 2010-10-27 | 2010-10-27 | Cell switching method, method of measurement, equipment and system |
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| CN102457894B (en) | 2015-09-30 |
| WO2012055342A1 (en) | 2012-05-03 |
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