CN102378201A - Managing method and managing device of region under carrier aggregation environment - Google Patents
Managing method and managing device of region under carrier aggregation environment Download PDFInfo
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Abstract
The invention provides a managing method and a managing device of a region under a carrier aggregation environment. The managing method comprises the following steps that: step A. acquiring a channel quality parameter measurement value of all regions on all carriers of all base stations measured by user equipment; step B. determining correction corresponding to the channel quality parameter measurement value at least according to a carrier frequency corresponding to the channel quality parameter measurement value and utilizing the correction to correct the corresponding channel quality parameter measurement value; and the correction corresponding to the channel quality parameter measurement value is larger when the carrier frequency corresponding to the channel quality parameter measurement value is higher; and step C. selecting a maximal value from the corrected channel quality parameter measurement value and configuring the region to be a main region of the user equipment corresponding to the corrected channel quality parameter measurement value having the maximal value. Due to the adoption of the method and the device, the user experience speed under the carrier aggregation environment is improved, and load of each region can be balanced.
Description
Technical field
The present invention relates to GSM, the management method and the management devices of the sub-district under particularly a kind of carrier aggregation environment.
Background technology
Third generation partner program (3rd Generation Partnership Project; 3GPP) as the vital tissue of moving communicating field; Promoted 3G (Third Generation) Moblie technology (The Third Generation greatly; 3G) standardization progress, formulated a series of comprise WCDMA insert (Wide Code Division Multiple Access, WCDMA), high speed downlink packet inserts (High Speed Downlink Packet Access; HSDPA), (High Speed Uplink Packet Access HSUPA) waits in interior communication system standard in the high speed uplink packet access.
In order to tackle the challenge of broadband access technology, and satisfy the demand of growing novel business, 3GPP will have started 3G Long Term Evolution (Long Term Evolution, LTE) standardization effort of technology in the end of the year 2004.In June, 2008,3GPP has accomplished the technical need report of LTE-A, has proposed the minimum essential requirement of LTE-A: descending peak rate 1Gbps, and up peak rate 500Mbps, up-downgoing peaks spectrum utilance reaches 15Mbps/Hz and 30Mbps/Hz respectively.These parameters far above the minimum technology demand parameter of ITU, have remarkable advantages.
LTE-A supports in continuous carrier polymerization and the frequency band and the discontinuous carrier polymerization between frequency band, and maximum ability aggregate bandwidth can reach 100MHz.In order effectively to utilize carrier wave at the commercial initial stage of LTE-A, guarantee that promptly the LTE subscriber equipment can insert the LTE-A system, each carrier wave should be able to be configured to the carrier wave with the LTE backward compatibility, yet does not also get rid of the carrier wave that design is only used by the LTE-A system.At present 3GPP has identified the application scenarios of 12 kinds of carrier aggregation according to the demand of operator, and wherein 4 kinds of recent emphasis of conduct relate separately to the continuous and discontinuous carrier aggregation scene of FDD and TDD.In the conceptual phase of LTE-A, the correlative study emphasis of carrier aggregation comprises that the availability of frequency spectrum of continuous carrier polymerization promotes the design of the control channel of the asymmetrical carrier aggregation scene of up-downgoing etc.
Consider the requirement of LTE-A to new frequency spectrum, operator is when considering backwards compatibility, and inevitable also will consider introduced new frequency range and radio frequency link.And owing to be separate between these new radio frequency links and the existing radio frequency link, so operator has greater flexibility when arranging net.As shown in Figure 1, wherein white ovals shape is represented existing sub-district, and the ellipse that is filled with oblique line is represented new sub-district of introducing.When introducing new cell frequency and existing sub-district not simultaneously, operator can be rotated its corresponding antenna according to the environment needs, is used for the border, sub-district of legacy network is compensated, thereby obtains the better throughput and the network coverage.In the carrier aggregation system, between a plurality of member carriers,, can obtain the ideal system performance usually to the mode of subscriber equipment employing combined dispatching.
Another kind of typical application scene is under heterogeneous network environment; The base station of new little covering of laying; For example Microcell (Picocell) and WAP (RRH) etc. can use frequency or the frequency range different with traditional macro base station, through and macro base station between connection and information interaction; Can realize carrier aggregation equally, improve power system capacity.
Certainly, carrier aggregation can also have much other application scenarioss, and the needs of the basis oneself that operator can be autonomous are for example considered factors such as application region, user capability, antenna for base station configuration, use different application scenes flexibly.
According to the 3GPP standard code, the member carrier of subscriber equipment can be divided into two types: main member carrier (Primary Component Carrier) and time member carrier (Secondary Component Carrier).Accordingly, the sub-district that subscriber equipment uses on main member carrier be called as the main plot (Primary Cell, PCell), the sub-district of on inferior member carrier, using be called as time sub-district (Secondary Cell, SCell).Subscriber equipment can use a plurality of member carriers and their pairing sub-districts simultaneously, but can only have a main member carrier with and pairing main plot.When carrying out carrier aggregation, can use the degree of two kinds of method limit polymerization: absolute value method and relative value method.When using the absolute value method, after having selected a main plot, only the absolute value according to the channel quality parameter of candidate time sub-district/inferior sub-district on time member carrier determines whether needs interpolation/deletion candidate time sub-district/inferior sub-district; When using the relative value method, after having selected a main plot, relatively the relativeness of the channel quality parameter of main plot and candidate time sub-district/inferior sub-district determines whether needs interpolation/deletion candidate time sub-district/inferior sub-district according to this relativeness.
Yet, in the above-mentioned method, only considered the factor of channel quality for the selection of member carrier, it can also further be optimized, to improve user experience speed.
Summary of the invention
The management method and the management devices that the purpose of this invention is to provide the sub-district under a kind of carrier aggregation environment improve the user experience speed under the carrier aggregation environment.
To achieve these goals, the embodiment of the invention provides the management method of the sub-district under a kind of carrier aggregation environment, comprising:
Steps A is obtained the channel quality parameter measured value of all sub-districts on all carrier waves of all base stations that subscriber equipment measures;
Step B confirms the correction that the channel quality parameter measured value is corresponding according to the corresponding carrier frequency of channel quality parameter measured value at least, and utilizes said correction correction corresponding channel quality measured value of parameters; The carrier frequency that said channel quality parameter measured value is corresponding is high more, and the correction that said channel quality parameter measured value is corresponding is big more;
Step C selects maximum from revised channel quality parameter measured value, and will have the main plot that this peaked revised channel quality parameter measured value corresponding district is configured to said subscriber equipment.
Above-mentioned management method, wherein, said step B is specially:
Said correction is confirmed in carrier frequency and the load of channel quality parameter measured value corresponding district according to the channel quality parameter measured value is corresponding, and utilizes said correction correction corresponding channel quality measured value of parameters;
The load of said channel quality parameter measured value corresponding district is light more, and the correction that then said channel quality parameter measured value is corresponding is big more.
Above-mentioned management method wherein, also comprises:
Step C; Obtain time sub-district set to be selected; All sub-districts and said main plot in said the sub-district set to be selected all belong to same base station, and the revised channel quality parameter measured value of each sub-district in said the sub-district set to be selected with add thresholding with value more than or equal to the corresponding revised channel quality parameter measured value in main plot;
Step D carries out deletion action to the set to be selected of inferior sub-district, makes in each carrier wave corresponding district, the maximum sub-district of revised channel quality parameter measured value that only keeps;
Step e is the inferior sub-district of said subscriber equipment with the part or all of cell configuration in after the said execution deletion action the sub-district set to be selected.
Above-mentioned management method wherein, also comprises:
Step F, the revised channel quality parameter measured value of existing sub-district of judges equipment and deletion thresholding with value whether less than the revised channel quality parameter measured value of main plot;
Step G; The revised channel quality parameter measured value of existing sub-district of subscriber equipment and deletion thresholding when being worth less than the corresponding revised channel quality parameter measured value in main plot; Carry out deletion action, make said existing time sub-district no longer as the inferior sub-district of said subscriber equipment.
Above-mentioned management method, wherein, among the said step C, said adding thresholding confirms that according to the load of serving BS the serving BS load is heavy more, said adding thresholding is more little.
Above-mentioned management method, wherein, among the said step G, said deletion thresholding confirms that according to the load of serving BS the serving BS load is heavy more, said deletion thresholding is big more.
To achieve these goals, the embodiment of the invention also provides the management devices of the sub-district under a kind of carrier aggregation environment, comprising:
The measured value acquisition module is used to obtain the channel quality parameter measured value of all sub-districts on all carrier waves of all base stations that subscriber equipment measures;
Correcting module is used for confirming the correction that the channel quality parameter measured value is corresponding according to the corresponding carrier frequency of channel quality parameter measured value at least, and utilizes said correction correction corresponding channel quality measured value of parameters; The carrier frequency that said channel quality parameter measured value is corresponding is high more, and the correction that said channel quality parameter measured value is corresponding is big more;
First configuration module is used for selecting maximum from revised channel quality parameter measured value, and will have the main plot that this peaked revised channel quality parameter measured value corresponding district is configured to said subscriber equipment.
Above-mentioned management devices; Wherein, Said correcting module specifically is used for confirming the said correction that the channel quality parameter measured value is corresponding according to the carrier frequency of channel quality parameter measured value correspondence and the load of channel quality parameter measured value corresponding district, and utilizes said correction correction corresponding channel quality measured value of parameters;
The load of said channel quality parameter measured value corresponding district is light more, and the correction that then said channel quality parameter measured value is corresponding is big more.
Above-mentioned management devices wherein, also comprises:
The set acquisition module; Be used to obtain time sub-district set to be selected; All sub-districts and said main plot in said the sub-district set to be selected all belong to same base station, and the revised channel quality parameter measured value of each sub-district in said the sub-district set to be selected with add thresholding with value more than or equal to the corresponding revised channel quality parameter measured value in main plot;
First removing module is used for deletion action is carried out in the set to be selected of inferior sub-district, makes in each carrier wave corresponding district the maximum sub-district of revised channel quality parameter measured value that only keeps;
Second configuration module, the part or all of cell configuration that is used for after the said execution deletion action sub-district set to be selected is the inferior sub-district of said subscriber equipment.
Above-mentioned management devices wherein, also comprises:
Judge module, be used for judges equipment existing sub-district revised channel quality parameter measured value and deletion thresholding with value whether less than the revised channel quality parameter measured value of main plot;
Second removing module; Be used for the revised channel quality parameter measured value of existing sub-district of subscriber equipment with delete thresholding with value during less than the corresponding revised channel quality parameter measured value in main plot; Carry out deletion action, make said existing time sub-district no longer as the inferior sub-district of said subscriber equipment.
Above-mentioned management devices, wherein, said adding thresholding confirms that according to the load of serving BS the serving BS load is heavy more, said adding thresholding is more little.
Above-mentioned management devices, wherein, said deletion thresholding confirms that according to the load of serving BS the serving BS load is heavy more, said deletion thresholding is big more.
The embodiment of the invention has following beneficial effect:
The embodiment of the invention is through revising the channel quality parameter measured value with frequency or frequency and the relevant factor of load; And utilize revised measured value to carry out the configuration of main plot; Simultaneously, in the embodiment of the invention, also the thresholding of inferior cell selecting/deletion is adjusted according to load-factor; The embodiment of the invention has not only improved the user experience speed under the carrier aggregation environment, also balance the load of each minizone.
Description of drawings
Fig. 1 is the application scenarios sketch map of a kind of carrier aggregation system in the prior art;
Fig. 2 is the exploded view of the carrier aggregation system of Fig. 1;
Fig. 3 is the schematic flow sheet of the management method of the sub-district under the carrier aggregation environment of the embodiment of the invention;
Fig. 4-5 is the simulation result sketch map of the method for the embodiment of the invention.
Embodiment
In the embodiment of the invention, revise channel quality parameter, and select member carrier, improve the user experience speed under the carrier aggregation environment according to revised channel quality parameter according to the correction that can exert an influence to channel quality parameter.
In the management method of the sub-district under the carrier aggregation environment of the embodiment of the invention, as shown in Figure 3, comprising:
In the carrier aggregation system, the channel quality parameter of certain sub-district that subscriber equipment measures, corresponding one by one with certain sub-district on certain carrier wave, certain base station, promptly a channel quality parameter is unique corresponding to a base station, a carrier wave and a sub-district.With Fig. 1 is example, and carrier aggregation system shown in Figure 1 is decomposed on carrier wave and base station, obtains exploded view as shown in Figure 2.Fig. 2 representes that base station 1～3 carries out carrier aggregation respectively on carrier wave CC1 and CC2, and there are 3 sub-districts each base station on each carrier wave, and said channel quality parameter measured value is meant the channel quality parameter of wherein certain sub-district that subscriber equipment measures.
The carrier frequency that said channel quality parameter measured value is corresponding is high more, and the correction that then said channel quality parameter measured value is corresponding is big more;
In specific embodiment of the present invention, this channel quality parameter is RSRP (Reference Signal Receiving Power, a Reference Signal Received Power).
In specific embodiment of the present invention, can only confirm the correction that the channel quality parameter measured value is corresponding according to the corresponding carrier frequency of channel quality parameter measured value, illustrate as follows.
Set up and preserve the corresponding relation between carrier frequency and the correction in advance, being respectively 800MHz, 2GHz and 3.5GHz with carrier frequency is example, and its corresponding relation is as follows:
| Carrier wave | Correction |
| Carrier?0(800MHz) | offset 00 |
| Carrier?1(2GHz) | offset 10 |
| Carrier?2(3.5GHz) | offset 20 |
Wherein, offset
00＜offset
10＜offset
20, that is to say that carrier frequency is high more, then corresponding correction is big more;
Be respectively 800MHz and 2GHz is an example with carrier frequency, suppose that subscriber equipment measures following RSRP value, as follows:
The channel quality parameter measured value of the sub-district on the carrier wave 1 (800MHz) of base station 1 that RSRP11, subscriber equipment measure;
The channel quality parameter measured value of the sub-district on the carrier wave 2 (2GHz) of base station 1 that RSRP12, subscriber equipment measure;
The channel quality parameter measured value of the sub-district on the carrier wave 1 (800MHz) of base station 2 that RSRP21, subscriber equipment measure;
The channel quality parameter measured value of the sub-district on the carrier wave 2 (2GHz) of base station 2 that RSRP22, subscriber equipment measure;
The channel quality parameter measured value of the sub-district on the carrier wave 1 (800MHz) of base station 3 that RSRP31, subscriber equipment measure;
The channel quality parameter measured value of the sub-district on the carrier wave 2 (2GHz) of base station 3 that RSRP32, subscriber equipment measure.
If utilize the content of prior art, then network equipment can be directly relatively RSRP11, RSRP12 ..., RSRP32, and dispose the pairing sub-district of maximum among the RSRP11 to RSRP32 as the main member carrier of subscriber equipment.
Yet; Only considered RSRP self in the above-mentioned scheme; Do not consider other factor, and in specific embodiment of the present invention, obtain RSRP11, RSRP12 ..., after this a series of measured value of RSRP32; Can revise measured value according to carrier frequency, revised RSRP measured value is following:
RSRP11+offset
00、RSRP12+offset
10、RSRP21+offset
00、RSRP22+offset
10、RSRP31+offset
00、RSRP32+offset
10。
From revised RSRP measured value sequence, select a maximum then, be assumed to RSRP22+offset
10, then dispose RSRP22 corresponding district (sub-district on the carrier wave 2 of base station 2) as the main plot.
In the carrier aggregation system as shown in Figure 1, iff considers that the RSRP measured value decides the main plot, just following situation possibly occur; If mass of terminals is found the RSRP of the RSRP of a certain sub-district A greater than another sub-district B, but actual RSRP difference is all smaller, but these terminals all can select the carrier wave of this sub-district A as main member carrier; Just can cause mass of terminals to be linked into the carrier wave of sub-district A, cause sub-district A load heavier, and the carrier wave of sub-district B does not have the terminal to insert; Load is very light; For fear of the appearance of above-mentioned situation, in specific embodiment of the present invention, step 32 is specifically carried out through following mode:
The correction that the channel quality parameter measured value is corresponding is confirmed in carrier frequency and the load of channel quality parameter measured value corresponding district according to the channel quality parameter measured value is corresponding, and utilizes said correction correction corresponding channel quality measured value of parameters;
The carrier frequency that said channel quality parameter measured value is corresponding is high more, and the correction that then said channel quality parameter measured value is corresponding is big more;
The load of said channel quality parameter measured value corresponding district is light more, and the correction that then said channel quality parameter measured value is corresponding is big more;
Through above-mentioned mode, the carrier wave that has strengthened the light sub-district of load is selected to the possibility of main member carrier by the terminal, balance cell load.
Specify as follows.
Set up and preserve the corresponding relation between carrier frequency, cell load and the correction in advance, with carrier frequency be respectively 800MHz, 2GHz is an example, its corresponding relation is as follows:
In above-mentioned corresponding relation, the base station load divides for 4 ranks, but should be understood that, in order to reach control more accurately, then can the base station load be divided into more rank.
Wherein:
offset
00＜offset
10＜offset
20，offset
01＜offset
11＜offset
21，offset
02＜offset
12＜offset
22，offset
03＜offset
13＜offset
23；
offset
00＜offset
01＜offset
02＜offset
03，offset
10＜offset
11＜offset
12＜offset
13，offset
20＜offset
21＜offset
22＜offset
23。
Be respectively 800MHz and 2GHz is an example with carrier frequency, suppose that subscriber equipment measures following RSRP value, as follows:
The channel quality parameter measured value of the sub-district on the carrier wave 1 (800MHz) of base station 1 that RSRP11, subscriber equipment measure;
The channel quality parameter measured value of the sub-district on the carrier wave 2 (2GHz) of base station 1 that RSRP12, subscriber equipment measure;
The channel quality parameter measured value of the sub-district on the carrier wave 1 (800MHz) of base station 2 that RSRP21, subscriber equipment measure;
The channel quality parameter measured value of the sub-district on the carrier wave 2 (2GHz) of base station 2 that RSRP22, subscriber equipment measure;
The channel quality parameter measured value of the sub-district on the carrier wave 1 (800MHz) of base station 3 that RSRP31, subscriber equipment measure;
The channel quality parameter measured value of the sub-district on the carrier wave 2 (2GHz) of base station 3 that RSRP32, subscriber equipment measure.
If utilize the content of prior art, then network equipment can be directly relatively RSRP11, RSRP12 ..., RSRP32, and dispose the pairing sub-district of maximum among the RSRP11 to RSRP32 as the main plot of subscriber equipment.
Yet; Only consider RSRP self in the above-mentioned scheme, do not considered other factor, and in specific embodiment of the present invention; Obtain RSRP11, RSRP12 ..., after this a series of measured value of RSRP32; Can revise measured value according to carrier frequency and loading condition, suppose RSRP11, RSRP12 ..., the load of RSRP32 corresponding district is respectively 25%, 35%, 45%, 55%, 65%, 75%, 85%, then revised RSRP measured value is following:
RSRP11+offset
00、RSRP12+offset
11、RSRP21+offset
01、RSRP22+offset
12、RSRP31+offset
03、RSRP32+offset
13。
From revised RSRP measured value sequence, select a maximum then, be assumed to RSRP22+offset
12, then dispose the corresponding carrier wave (sub-district on the carrier wave 2 of base station 2) of RSRP22 as the main plot.
Through above-mentioned mode, the carrier wave that has strengthened the light sub-district of load is selected to the possibility of main member carrier by the terminal, balance cell load, also can improve user's experience speed.
After having selected the main plot, need continue to select time sub-district, in specific embodiment of the present invention, can use revised channel quality parameter measured value to select time sub-district according to existing method.
When adopting relative method, a thresholding need be set obtain time sub-district, specifically comprise the steps:
Obtain a sub-district set to be selected; All sub-districts and said main plot in said the sub-district set to be selected all belong to serving BS, and the revised channel quality parameter measured value of each sub-district in said the sub-district set to be selected with add thresholding with value more than or equal to the corresponding revised channel quality parameter measured value in main plot;
Deletion action is carried out in the set to be selected of inferior sub-district, kept the maximum sub-district of revised channel quality parameter measured value in each member carrier corresponding district;
With the part or all of cell configuration in after the said execution deletion action the sub-district set to be selected is the inferior sub-district of said subscriber equipment.
When adopting relative method, other thresholding need be set delete time sub-district, specifically comprise the steps:
The revised channel quality parameter measured value of existing sub-district of judges equipment and deletion thresholding with whether be worth less than the corresponding revised channel quality parameter measured value in main plot;
The revised channel quality parameter measured value of existing sub-district of subscriber equipment and deletion thresholding when being worth less than the corresponding revised channel quality parameter measured value in main plot; Carry out deletion action, make said existing time sub-district no longer as the inferior sub-district of said subscriber equipment.
In specific embodiment of the present invention,, should consider the loading condition of base station for the balance of proof load; Under the heavier situation of the load of base station, should be the more time sub-district of user device configuration as far as possible, and/or existing sub-district of the least possible deletion subscriber equipment; Certainly; Under the lighter situation of the load of base station, can lack the inferior sub-district of some for user device configuration, and/or delete existing sub-district of subscriber equipment more; According to above reason, in specific embodiment of the present invention:
When obtaining a sub-district set to be selected, further confirm said adding thresholding according to the load of serving BS, the serving BS load is heavy more, and said adding thresholding is more little.
The revised channel quality parameter measured value of judging existing time sub-district and deletion thresholding with whether be worth less than the corresponding revised channel quality parameter measured value in main plot; Further confirm said deletion thresholding according to the load of serving BS; The serving BS load is heavy more, and said deletion thresholding is big more.
The management devices of the sub-district under a kind of carrier aggregation environment of the embodiment of the invention comprises:
The measured value acquisition module is used to obtain the channel quality parameter measured value of all sub-districts on all carrier waves of all base stations that subscriber equipment measures;
Correcting module is used for confirming the correction that the channel quality parameter measured value is corresponding according to the corresponding carrier frequency of channel quality parameter measured value at least, and utilizes said correction correction corresponding channel quality measured value of parameters; The carrier frequency that said channel quality parameter measured value is corresponding is high more, and the correction that said channel quality parameter measured value is corresponding is big more;
First configuration module is used for selecting maximum from revised channel quality parameter measured value, and will have the main plot that this peaked revised channel quality parameter measured value corresponding district is configured to said subscriber equipment.
Wherein, Said correcting module specifically is used for confirming the said correction that the channel quality parameter measured value is corresponding according to the carrier frequency of channel quality parameter measured value correspondence and the load of channel quality parameter measured value corresponding district, and utilizes said correction correction corresponding channel quality measured value of parameters;
The load of said channel quality parameter measured value corresponding district is light more, and the correction that then said channel quality parameter measured value is corresponding is big more.
Above-mentioned management devices also comprises:
The set acquisition module; Be used to obtain time sub-district set to be selected; All sub-districts and said main plot in said the sub-district set to be selected all belong to same base station, and the revised channel quality parameter measured value of each sub-district in said the sub-district set to be selected with add thresholding with value more than or equal to the corresponding revised channel quality parameter measured value in main plot;
First removing module is used for deletion action is carried out in the set to be selected of inferior sub-district, makes in each carrier wave corresponding district the maximum sub-district of revised channel quality parameter measured value that only keeps;
Second configuration module, the part or all of cell configuration that is used for after the said execution deletion action sub-district set to be selected is the inferior sub-district of said subscriber equipment.
Above-mentioned management devices also comprises:
Judge module, be used for judges equipment existing sub-district revised channel quality parameter measured value and deletion thresholding with value whether less than the revised channel quality parameter measured value of main plot;
Second removing module; Be used for the revised channel quality parameter measured value of existing sub-district of subscriber equipment with delete thresholding with value during less than the corresponding revised channel quality parameter measured value in main plot; Carry out deletion action, make said existing time sub-district no longer as the inferior sub-district of said subscriber equipment.
Said adding thresholding confirms that according to the load of serving BS the serving BS load is heavy more, and said adding thresholding is more little.
Said deletion thresholding confirms that according to the load of serving BS the serving BS load is heavy more, and said deletion thresholding is big more.
In specific embodiment of the present invention; Relate to the correction of channel quality parameter measured value and the adding thresholding under the different loads and deletion thresholding; This correction and thresholding can obtain and preserve in several ways in advance; Table look-at use in use afterwards gets final product, and the example that is retrieved as with correction is elaborated below.
< obtain manner one >
Outer round-robin method, when coming into operation in the base station, according to the user carry out the self adaptation adjustment for information such as the feedback of experiencing speed and current frequency, loads for the parameter of initial setting up, and the optimal value that obtains preserved supply follow-up use.
As the experience speed of finding user feedback reduces the index word before then revising, and (as increasing) adjustment improves if find the experience speed of user feedback next time in the other direction; Then continue to (increase) adjustment in the other direction, reduce, then change direction (reducing) if find the experience speed of user feedback; But need reduce the adjustment step-length simultaneously adjusts; Move in circles according to this, just stop adjustment until the experience rate variation of user feedback less than a thresholding, and preserve last parameter.
For aforesaid way, need in actual environment, test, may be subject to load, frequency can't satisfy at any time, therefore can adopt obtain manner two to obtain.
< obtain manner two >
Obtain through emulation mode in the obtain manner two.
At first create a simulated environment; For creating simulated environment, lots of emulation software can realize that it belongs to those skilled in the art's general knowledge, does not describe in detail at this now.
Utilize various parameter value to be updated to then and carry out emulation, record optimal performance in the simulated environment;
Select and preserve one group of parameter of optimal performance correspondence at last, be applied to real system.
In order to guarantee accuracy,, the interval of a thresholding can be set as for following form; Five equilibrium then, last permutation and combination possibly obtain a lot of forms; Divide other emulation to each, can obtain an optimum combination at last, certainly; Near optimal performance, what can the adjustment step-length of offset be provided with is thin as far as possible for as far as possible.
Like interval [A, B] 10 five equilibriums of all offset, the optimum value that then obtains above table need carry out 10
12Inferior experiment though test number (TN) is more, for this emulation that repeats, has no difficulty through computer automatic execution, so many again test number (TN)s can not become the obstacle that obtains optimal parameter.
For the setting of this interval [A, B], if between the beginning uncertain region, can with upper limit B be provided with bigger get final product, as also greatly than the RSRP measured value of existing maximum.
Beneficial effect in the face of the embodiment of the invention carries out the emulation proof as follows down.
Wherein simulation parameter is as follows:
Relation between correction and frequency and the load is as shown in the table:
| UE＝3 | UE＝5 | UE＝10 | UE＝15 | UE＝20 | |
| Carrier?0(800MHz) | 0 | -1 | -2 | -3 | -4 |
| Carrier?1(2GHz) | 8.5 | 7.5 | 6.5 | 5.5 | 4.5 |
The relation that increases thresholding/deletion thresholding and load is as shown in the table:
| UE＝3 | UE＝5 | UE＝10 | UE＝15 | UE＝20 | |
| Scenario?#1/#2 | 0.1/3.1 | 0.1/3.1 | 0.1/3.1 | 0.1/3.1 | 0.1/3.1 |
| Scenario?#3 | 10/13 | 7.1/10.1 | 0.3/3.3 | 0.2/3.2 | 0.1/3.1 |
Certainly; The relation of the relation between above-mentioned correction and frequency and the load and increase thresholding/deletion thresholding and load is only used for emulation, so the relation between the numerical value of above-mentioned two tables all can not become the qualification to the relation of the relation between correction and frequency and the load and increase thresholding/deletion thresholding and load.
As shown in Figure 4; For the aerial angle of carrier wave 1 (800MHz) is identical with the aerial angle of carrier wave 2 (2GHz), not exclusively overlap (scene 2) but cover, and the transmission bandwidth of carrier wave 1 is 10MHz; And the transmission bandwidth of carrier wave 2 is the simulation result sketch map under the situation of 10MHz; As shown in Figure 4, can find, utilize the subscriber equipment average throughput of subscriber equipment average throughput and combined dispatching mode of method of the embodiment of the invention very nearly the same; But with respect to the existing method of not revising measured value, rising to of its subscriber equipment average throughput reduces long 100%.
As shown in Figure 5; Be the aerial angle of carrier wave 1 (800MHz) different with the aerial angle of carrier wave 2 (2GHz) (scenes 3), and the transmission bandwidth of carrier wave 1 is 10MHz, and the transmission bandwidth of carrier wave 2 is the simulation result sketch map under the situation of 10MHz; As shown in Figure 5; Can find, utilize the subscriber equipment average throughput of subscriber equipment average throughput and combined dispatching mode of method of the embodiment of the invention very nearly the same, but with respect to the existing method of not revising measured value; The growth of its subscriber equipment average throughput is very obvious, and the subscriber equipment average throughput increases particularly evident under the less situation of number of users.
Above simulation result proves; The method of the embodiment of the invention is under various scenes; The subscriber equipment average throughput all can reach a maximum (the subscriber equipment average throughput of combined dispatching mode) basically; And the subscriber equipment average throughput is with respect to revising measured value, and the prior art of uncompensation threshold value has very significantly and increases.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (12)
1. the management method of the sub-district under the carrier aggregation environment is characterized in that, comprising:
Steps A is obtained the channel quality parameter measured value of all sub-districts on all carrier waves of all base stations that subscriber equipment measures;
Step B confirms the correction that the channel quality parameter measured value is corresponding according to the corresponding carrier frequency of channel quality parameter measured value at least, and utilizes said correction correction corresponding channel quality measured value of parameters; The carrier frequency that said channel quality parameter measured value is corresponding is high more, and the correction that said channel quality parameter measured value is corresponding is big more;
Step C selects maximum from revised channel quality parameter measured value, and will have the main plot that this peaked revised channel quality parameter measured value corresponding district is configured to said subscriber equipment.
2. management method according to claim 1 is characterized in that, said step B is specially:
Said correction is confirmed in carrier frequency and the load of channel quality parameter measured value corresponding district according to the channel quality parameter measured value is corresponding, and utilizes said correction correction corresponding channel quality measured value of parameters;
The load of said channel quality parameter measured value corresponding district is light more, and the correction that then said channel quality parameter measured value is corresponding is big more.
3. management method according to claim 1 and 2 is characterized in that, also comprises:
Step C; Obtain time sub-district set to be selected; All sub-districts and said main plot in said the sub-district set to be selected all belong to same base station, and the revised channel quality parameter measured value of each sub-district in said the sub-district set to be selected with add thresholding with value more than or equal to the corresponding revised channel quality parameter measured value in main plot;
Step D carries out deletion action to the set to be selected of inferior sub-district, makes in each carrier wave corresponding district, the maximum sub-district of revised channel quality parameter measured value that only keeps;
Step e is the inferior sub-district of said subscriber equipment with the part or all of cell configuration in after the said execution deletion action the sub-district set to be selected.
4. management method according to claim 3 is characterized in that, also comprises:
Step F, the revised channel quality parameter measured value of existing sub-district of judges equipment and deletion thresholding with value whether less than the revised channel quality parameter measured value of main plot;
Step G; The revised channel quality parameter measured value of existing sub-district of subscriber equipment and deletion thresholding when being worth less than the corresponding revised channel quality parameter measured value in main plot; Carry out deletion action, make said existing time sub-district no longer as the inferior sub-district of said subscriber equipment.
5. management method according to claim 4 is characterized in that, among the said step C, said adding thresholding confirms that according to the load of serving BS the serving BS load is heavy more, and said adding thresholding is more little.
6. management method according to claim 4 is characterized in that, among the said step G, said deletion thresholding confirms that according to the load of serving BS the serving BS load is heavy more, and said deletion thresholding is big more.
7. the management devices of the sub-district under the carrier aggregation environment is characterized in that, comprising:
The measured value acquisition module is used to obtain the channel quality parameter measured value of all sub-districts on all carrier waves of all base stations that subscriber equipment measures;
Correcting module is used for confirming the correction that the channel quality parameter measured value is corresponding according to the corresponding carrier frequency of channel quality parameter measured value at least, and utilizes said correction correction corresponding channel quality measured value of parameters; The carrier frequency that said channel quality parameter measured value is corresponding is high more, and the correction that said channel quality parameter measured value is corresponding is big more;
First configuration module is used for selecting maximum from revised channel quality parameter measured value, and will have the main plot that this peaked revised channel quality parameter measured value corresponding district is configured to said subscriber equipment.
8. management devices according to claim 7; It is characterized in that; Said correcting module specifically is used for confirming the said correction that the channel quality parameter measured value is corresponding according to the carrier frequency of channel quality parameter measured value correspondence and the load of channel quality parameter measured value corresponding district, and utilizes said correction correction corresponding channel quality measured value of parameters;
The load of said channel quality parameter measured value corresponding district is light more, and the correction that then said channel quality parameter measured value is corresponding is big more.
9. according to claim 7 or 8 described management devices, it is characterized in that, also comprise:
The set acquisition module; Be used to obtain time sub-district set to be selected; All sub-districts and said main plot in said the sub-district set to be selected all belong to same base station, and the revised channel quality parameter measured value of each sub-district in said the sub-district set to be selected with add thresholding with value more than or equal to the corresponding revised channel quality parameter measured value in main plot;
First removing module is used for deletion action is carried out in the set to be selected of inferior sub-district, makes in each carrier wave corresponding district the maximum sub-district of revised channel quality parameter measured value that only keeps;
Second configuration module, the part or all of cell configuration that is used for after the said execution deletion action sub-district set to be selected is the inferior sub-district of said subscriber equipment.
10. management devices according to claim 9 is characterized in that, also comprises:
Judge module, be used for judges equipment existing sub-district revised channel quality parameter measured value and deletion thresholding with value whether less than the revised channel quality parameter measured value of main plot;
Second removing module; Be used for the revised channel quality parameter measured value of existing sub-district of subscriber equipment with delete thresholding with value during less than the corresponding revised channel quality parameter measured value in main plot; Carry out deletion action, make said existing time sub-district no longer as the inferior sub-district of said subscriber equipment.
11. management devices according to claim 10 is characterized in that, said adding thresholding confirms that according to the load of serving BS the serving BS load is heavy more, and said adding thresholding is more little.
12. management devices according to claim 10 is characterized in that, said deletion thresholding confirms that according to the load of serving BS the serving BS load is heavy more, and said deletion thresholding is big more.
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| CN201010261648.6A CN102378201B (en) | 2010-08-16 | 2010-08-16 | The management method of the community under a kind of carrier aggregation environment and management devices |
| JP2011177448A JP5820186B2 (en) | 2010-08-16 | 2011-08-15 | Cell management method and management apparatus in carrier aggregation environment |
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Also Published As
| Publication number | Publication date |
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| CN102378201B (en) | 2016-03-23 |
| JP2012044663A (en) | 2012-03-01 |
| JP5820186B2 (en) | 2015-11-24 |
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