CN101594632A - The methods, devices and systems that switch the sub-district - Google Patents

Abstract

The embodiment of the invention discloses the methods, devices and systems that switch a kind of sub-district, belong to wireless communication field, can guarantee that user terminal switches to optimum subdistrict.The technical scheme that the embodiment of the invention provides is: a kind of method that sends measurement report comprises: first measuring amount and second measuring amount according to the network side configuration measure first measured value and second measured value to candidate cell; According to described first measured value candidate cell that meets evaluation condition is carried out descending; When first measured value of the candidate cell that meets evaluation condition more than two equates, the candidate cell that described first measured value equates is carried out descending according to second measured value of candidate cell; Candidate cell after the ordering is put into measurement report, and send described measurement report, switch so that described network side carries out the sub-district according to putting in order of candidate cell in the described measurement report to described network side.The technical scheme that the embodiment of the invention provides is applicable in the wireless communication system.

Description

The methods, devices and systems that switch the sub-district

Technical field

The present invention relates to wireless communication field, relate in particular to the methods, devices and systems that switch a kind of sub-district.

Background technology

In WCDMA (Wideband Code Division Multiple Access, the Wideband Code Division Multiple Access (WCDMA)) network,, just user terminal need be switched to another sub-district from a sub-district in order to guarantee service feature and quality along with moving of user terminal (UE).In order to realize that UE is switched to optimum subdistrict, need by measuring the information of acquisition sub-district and adjacent area, UE sends to network side with measured value by measurement report, the sub-district of measured value optimum is placed on the first place of measurement report, and network side switches to the sub-district according to measurement report the sub-district of the first place that is placed on measurement report.

Such as, UE is positioned at the A sub-district at present, preparation switches to the adjacent area, many candidate cells are arranged on every side, UE can assess candidate cell according to the measured value of network configuration, the measured value of network configuration is Ec/N0 (Ratioof energy per modulating bit to the noise spectral density, the energy of each demodulation bit is to the ratio of noise spectrum) and RSCP (Received Signal Code Power, received signal code power), when assessing only with reference to one in these two measured values, when the measured value of reference is Ec/N0, Ec/N0 value when UE assesses candidate cell with reference to candidate cell, if two candidate cell B are arranged, the Ec/N0 that C calculates is identical and all be optimum, only one of them sub-district is placed on the first place of measurement report, if sub-district B is placed on the first place of measurement report, network side will switch to sub-district B with UE according to measurement report.

The inventor finds, there are the following problems in the prior art: if sub-district B, the Ec/N0 of C is identical, but sub-district B, the RSCP of C might differ greatly, if the RSCP of sub-district C is better than sub-district B, because network side switches to sub-district B according to measurement report with UE, can cause UE not switch to the sub-district of an optimum like this, after above-mentioned situation occurring, because switching to one is not optimum sub-district, switch so frequent switching again very soon behind the handover success next time, can cause the signaling load of UE and network to strengthen, and because the Target cell that switches is not an optimum subdistrict, communication performance and quality also can descend, and more likely cause matters of aggravation such as call drop.

Summary of the invention

The methods, devices and systems that embodiments of the invention provide a kind of sub-district to switch can guarantee that user terminal switches to optimum sub-district.

For achieving the above object, embodiments of the invention adopt following technical scheme:

The method that switch a kind of sub-district comprises:

First measuring amount and second measuring amount according to the network side configuration measure first measured value and second measured value to candidate cell;

According to described first measured value candidate cell that meets evaluation condition is carried out descending;

When first measured value of the candidate cell that meets evaluation condition more than two equates, the candidate cell that described first measured value equates is carried out descending according to second measured value of candidate cell;

Candidate cell after the ordering is put into measurement report, and send described measurement report, switch so that described network side carries out the sub-district according to putting in order of candidate cell in the described measurement report to described network side.

A kind of sub-district device for switching comprises:

Measurement module is used for according to first measuring amount and second measuring amount of network side configuration candidate cell being measured first measured value and second measured value;

Order module, first measured value that is used for obtaining according to described measurement module carries out descending to the candidate cell that meets evaluation condition; When first measured value of the candidate cell that meets evaluation condition more than two equated, second measured value that obtains according to described measurement module carried out descending to the candidate cell that described first measured value equates;

Sending module is used for the candidate cell after described order module ordering is put into measurement report, and sends described measurement report to described network side, switches so that described network side carries out the sub-district according to putting in order of candidate cell in the described measurement report.

The system that switch a kind of sub-district comprises:

User terminal, be used for all candidate cells being measured first measured value and second measured value according to first measuring amount and second measuring amount of network side configuration, and select the candidate cell that meets evaluation condition according to first measured value, according to described first measured value candidate cell that meets evaluation condition is carried out descending, when first measured value of the candidate cell that meets evaluation condition more than two equates, second measured value according to candidate cell carries out descending to the candidate cell that described first measured value equates, candidate cell after the ordering is put into measurement report, and send described measurement report to described network side;

Network side entity is used to receive the measurement report that user terminal sends, and according to putting in order of sub-district in the described measurement report described user terminal is carried out the sub-district switching.

The methods, devices and systems that the embodiment of the invention provides a kind of sub-district to switch, first measuring amount according to the network side configuration sorts to the sub-district that meets evaluation condition earlier, when first measured value of two above candidate cells equates, according to second measured value sorted once more in the sub-district that first measured value equates, in measurement report, real best sub-district can be come the front like this, guarantee that user terminal switches to the sub-district of real optimum, can improve success rate for switching, switch the signaling load that brings and improve communication quality thereby reduce because of frequent.

Description of drawings

Fig. 1 is the method flow schematic diagram that switch the described sub-district of the embodiment of the invention;

Fig. 2 is the described sub-district of an embodiment of the invention device for switching block diagram;

Fig. 3 is the system block diagram that switch the described sub-district of the embodiment of the invention;

Fig. 4 is the method flow schematic diagram that switch the described sub-district of the embodiment of the invention;

Fig. 5 is the method flow schematic diagram that switch the described sub-district of the embodiment of the invention;

Fig. 6 is the method flow schematic diagram that switch the described sub-district of the embodiment of the invention.

Embodiment

The methods, devices and systems that switch the sub-district that the embodiment of the invention is provided below in conjunction with accompanying drawing are described in detail.Following examples are possibility of the present invention, and its priority is not represented in putting in order of embodiment.

Embodiment one:

The method that the embodiment of the invention provides a kind of sub-district to switch, as shown in Figure 1, this method comprises:

101, first measuring amount and second measuring amount according to the network side configuration measures first measured value and second measured value to candidate cell;

Present same frequency/different-frequency measure network side can dispose different measuring amount, two kinds of the triggering branch periodicity of measurement report and Event triggered.Periodic triggers is as long as UE regularly reports measuring amount according to network requirement, and Event triggered requires the condition of UE according to network configuration, only just sends out measurement report after condition satisfies, and is preferred, because periodic report is bigger to the load of UE and network, generally all adopts the Event triggered mode.

In the embodiment of the invention, measurement report is configured to Event triggered.UE is before preparing to switch to candidate cell, first measuring amount and second measuring amount according to the network side configuration measure first measured value and second measured value to all candidate cells, and all candidate cells are assessed according to the evaluation condition of network side configuration according to first measured value that obtains, draw the candidate cell that satisfies evaluation condition.

102, according to described first measured value candidate cell that meets evaluation condition is carried out descending;

If have only a candidate cell that meets evaluation condition, then need not sort; If the candidate cell that meets evaluation condition more than two is arranged, then according to candidate cell first measured value from high to low all candidate cells that satisfy evaluation condition are carried out descending, the sub-district that first measured value is best is placed on the first place of formation.

103, when first measured value of the candidate cell that meets evaluation condition more than two equates, the candidate cell that first measured value equates is carried out descending according to second measured value of candidate cell;

After the candidate cell that all is met evaluation condition carries out descending, equate if in formation, have first measured value of plural candidate cell, then can not determine putting in order of candidate cell that first measured value equates.At this moment need to consider second measured value, if first measuring amount of network side configuration is Ec/N0, then second measuring amount is RSCP, according to the RSCP value that obtains the candidate cell that the Ec/N0 value equates is carried out descending, according to from high to low the equal candidate cell of Ec/N0 value being sorted of RSCP value.

104, the candidate cell after will sorting is put into measurement report, and sends described measurement report to described network side, switches so that described network side carries out the sub-district according to putting in order of candidate cell in the described measurement report.

First measuring amount can be Ec/N0, and second measuring amount can be RSCP, specifically depends on the configuration of network.Exemplary, with first measuring amount is Ec/N0, second measuring amount is that RSCP is an example, according to step 102,103 with after the candidate cell ordering, candidate cell after the ordering is put into measurement report, at this moment the Ec/N0 value that is positioned at the sub-district of measurement report first place is optimum, be all optimum sub-district even two above Ec/N0 values occur, the RSCP value that is positioned at the sub-district of measurement report first place also is better than the sub-district that other equates with this sub-district Ec/N0 value, after generating measurement report, measurement report is sent to network side.

Network side will carry out the sub-district according to order in the row of measurement report sub-district and switch according to the measurement report that receives afterwards, can guarantee like this UE is switched to the more excellent sub-district of communication quality.For example, the sub-district switching is carried out in the sub-district that network side is at first selected to be positioned at the measurement report first place, gets nowhere if switch, and selects to come in the measurement report deputy sub-district again and carries out the sub-district switching, up to the success of sub-district handover success.

The method that the embodiment of the invention provides a kind of sub-district to switch, according to first measured value sorted in the sub-district that meets evaluation condition earlier, when first measured value of two above candidate cells equates, according to second measured value sorted once more in the sub-district that first measured value equates, in measurement report, real best sub-district can be come the front like this, guarantee that user terminal switches to the sub-district of real optimum, can improve success rate for switching, switch the signaling load that brings and improve communication quality thereby reduce because of frequent.

Embodiment two:

The embodiment of the invention provides a kind of sub-district device for switching, and as shown in Figure 2, this device comprises measurement module 201, order module 202 and sending module 203.

Wherein, measurement module 201 is used for according to first measuring amount and second measuring amount of network side configuration candidate cell being measured first measured value and second measured value; First measured value that order module 202 is used for obtaining according to measurement module 201 carries out descending to the candidate cell that meets evaluation condition; When first measured value of the candidate cell that meets evaluation condition more than two equated, second measured value that obtains according to measurement module 201 carried out descending to the candidate cell that first measured value equates; Sending module 203 is used for the candidate cell after order module 202 orderings is put into measurement report, and sends described measurement report to described network side, switches so that described network side carries out the sub-district according to putting in order of candidate cell in the described measurement report.

Optionally, described device can also comprise evaluation module 204, and first measured value that is used for obtaining according to measurement module 201 is assessed all candidate cells according to the evaluation condition of network side configuration, draws the candidate cell that satisfies evaluation condition.

First measured value that order module 202 specifically is used for obtaining according to measurement module 201 carries out descending to the candidate cell that meets evaluation condition that evaluation module 204 obtains; When first measured value of the candidate cell that meets evaluation condition more than two equated, second measured value that obtains according to measurement module 201 carried out descending to the candidate cell that described first measured value equates.

Evaluation module 204 can comprise alien frequencies direct-cut operation unit and judging unit, wherein, alien frequencies direct-cut operation unit is used for when the alien frequencies direct-cut operation is carried out in the configuration of described network side, calculates the assessed value of all pilot frequency point candidate cells according to first measured value that obtains, and computing formula is

$Q_{\mathrm{frequencyj}}=10\·\mathrm{Log}{M}_{\mathrm{frequencyj}}=W_j\·10\·\mathrm{Log}\left(\underset{i=1}{\overset{N_{\mathrm{Aj}}}{\mathrm{\Σ}}}{M}_{\mathrm{ij}}\right)+(1-W_j)\·10\·\mathrm{Log}{M}_{\mathrm{Bestj}},$ , Q wherein _Frequencyj, M _{Frequency j}For frequency is the assessed value of the candidate cell of j, W _jFor network side is that frequency is the weight parameter of the described candidate cell configuration of j, M _IjFor frequency is first measured value of the cell i of j, N _AjFor frequency is the number of the sub-district of j, M _{Best j}It for frequency first measured value of the sub-district of measured value optimum in the sub-district of j; If judging unit is used in first Preset Time, the assessed value of the candidate cell that described alien frequencies direct-cut operation unit the obtains Q that satisfies condition _{Non used}〉=T _{Non used 2b}+ H _2b/ 2, the assessed value of the current area Q that satisfies condition simultaneously _Used≤ T _{Used 2b}-H _2b/ 2, judge that then described candidate cell satisfies evaluation condition, wherein, Q _{Non used}Be the assessed value of candidate cell, Q _UsedFor the assessed value of current area, utilize computing formula $Q_{\mathrm{frequencyj}}=10\·\mathrm{Log}{M}_{\mathrm{frequencyj}}=W_j\·10\·\mathrm{Log}\left(\underset{i=1}{\overset{N_{\mathrm{Aj}}}{\mathrm{\Σ}}}{M}_{\mathrm{ij}}\right)+(1-W_j)\·10\·\mathrm{Log}{M}_{\mathrm{Bestj}},$ As long as, know the frequency of candidate cell and current area, just can calculate the assessed value of candidate cell and current area, T according to first measured value that measures _{Nonused 2b}, T _{Used 2b}Be the absolute thresholding of network side configuration, H _2bSluggish parameter for the network side configuration.

Evaluation module 204 can also comprise with frequency direct-cut operation unit, is used for when described network side configuration is carried out with the frequency direct-cut operation 10LogM if described first measured value satisfies condition _NotBest+ CIO _NotBest〉=10LogM _Best+ CIO _Best+ H _1d/ 2, and the time that continues to satisfy this condition greater than second Preset Time, judge that then this candidate cell satisfies evaluation condition, wherein, M _NotBestBe first measured value of candidate cell, CIO _NotBestBe self side-play amount of the candidate cell of network side configuration, M _BestBe first measured value of current area, CIO _BestBe self side-play amount of the current area of network side configuration, H _1dSluggish parameter for the network side configuration.

Described evaluation module 204 can also comprise the soft handover unit, is used for when soft handover is carried out in described network side configuration the 10LogM if described first measured value satisfies condition _New+ CIO _New〉=10LogM _InAS+ CIO _InAS+ H _1c/ 2, and the time that continues to satisfy this condition greater than the 3rd Preset Time, judge that then this candidate cell satisfies evaluation condition, wherein, M _NewBe first measured value of the candidate cell in Active Set not, CIO _NewBe self side-play amount of the not candidate cell in Active Set of network side configuration, M _InASBe first measured value of the minimum sub-district of measured value in the Active Set, CIO _InASBe self side-play amount of measured value is minimum in the Active Set of network side configuration sub-district, H _1cBe the sluggish parameter of network side configuration, described Active Set is the set of all sub-districts of current service user terminal.

The embodiment of the invention provides a kind of sub-district device for switching, first measured value according to the network side configuration sorts to the sub-district that meets evaluation condition earlier, when first measured value of two above candidate cells equates, according to second measured value sorted once more in the sub-district that first measured value equates, in measurement report, real best sub-district can be come the front like this, guarantee that user terminal switches to the sub-district of real optimum, can improve success rate for switching, switch the signaling load that brings and improve communication quality thereby reduce because of frequent.

Embodiment three:

The embodiment of the invention provides a kind of system that sends measurement report, and as shown in Figure 3, this system comprises user terminal 301 and network side entity 302.

Wherein, user terminal 301 is used for according to first measuring amount and second measuring amount of network side configuration all candidate cells being measured first measured value and second measured value, and select the candidate cell that meets evaluation condition according to first measured value, according to described first measured value candidate cell that meets evaluation condition is carried out descending, when first measured value of the candidate cell that meets evaluation condition more than two equates, second measured value according to candidate cell carries out descending to the candidate cell that described first measured value equates, candidate cell after the ordering is put into measurement report, and send described measurement report to described network side; Network side entity 302 is used to receive the measurement report that user terminal 301 sends, and according to putting in order of sub-district in the described measurement report user terminal 301 is carried out the sub-district switching.

Network side entity can be the base station node B among the UTRAN (Universal Terrestrial Radio Access Network, global terrestrial radio access network).

The system that the embodiment of the invention provides a kind of sub-district to switch, first measured value according to the network side configuration sorts to the sub-district that meets evaluation condition earlier, when first measured value of two above candidate cells equates, according to second measured value sorted once more in the sub-district that first measured value equates, in measurement report, real best sub-district can be come the front like this, guarantee that user terminal switches to the sub-district of real optimum, can improve success rate for switching, switch the signaling load that brings and improve communication quality thereby reduce because of frequent.

Prepare when current area switches to contiguous candidate cell at user terminal, candidate cell can be with current area with frequency, also can be different frequent points.Switching simultaneously is divided into soft handover and direct-cut operation again, and soft handover is that served user terminals can have plural sub-district simultaneously, and in handoff procedure, user terminal all keeps being connected in the sub-district with the preceding sub-district of switching with after switching.Direct-cut operation is that served user terminals has only a sub-district all the time, and when user terminal switched, user terminal disconnected earlier and switches being connected of preceding sub-district, and foundation and switching sub-district, back is connected again.Soft handover can only carry out between with the sub-district of frequency, and direct-cut operation both can carry out between with the sub-district of frequency, can carry out between the sub-district of different frequent points again, so direct-cut operation divides again with frequency direct-cut operation and alien frequencies direct-cut operation.With direct-cut operation frequently be user terminal switch to one with switch the sub-district of preceding sub-district with frequency, the alien frequencies direct-cut operation is that user terminal switches to a sub-district with the preceding sub-district of switching different frequent points.So the switching of user terminal comprises soft handover, same direct-cut operation and alien frequencies direct-cut operation frequently, correspondingly, the measurement report that user terminal sends comprises soft handover same-frequency measure reporting 1C, direct-cut operation same-frequency measure reporting 1D and direct-cut operation different-frequency measure reporting 2B.User terminal can generate at least a measurement report in three kinds of measurement reports, is sent to network side afterwards, and network side switches to user terminal the sub-district that is positioned at this measurement report first place according to the measurement report that receives earlier.Describe in detail to sending three kinds of different measuring method of reporting below in conjunction with embodiment.

Embodiment four:

When user terminal sent different-frequency measure reporting 2B, as shown in Figure 4, the method that switch this sub-district comprised:

401, according to first measuring amount and second measuring amount of network side configuration the pilot frequency point candidate cell is measured.

Exemplary, if the measuring amount of network side configuration is Ec/N0 and RSCP, when first measuring amount of network side configuration was Ec/N0, second measuring amount of network side configuration was exactly RSCP; When first measuring amount of network side configuration was RSCP, second measuring amount of network side configuration was exactly Ec/N0.The embodiment of the invention is that Ec/N0 is an example with first measuring amount of network side configuration, carries out the measurement of Ec/N0 and RSCP to user terminal sub-district, current place and with the candidate cell of sub-district, the current place of user terminal different frequent points earlier.

402, calculate the assessed value of pilot frequency point candidate cell according to first measured value that obtains.

According to the Ec/N0 value of the user terminal that obtains sub-district, current place and each pilot frequency point candidate cell, by $Q_{\mathrm{frequencyj}}=10\·\mathrm{Log}{M}_{\mathrm{frequencyj}}=W_j\·10\·\mathrm{Log}\left(\underset{i=1}{\overset{N_{\mathrm{Aj}}}{\mathrm{\Σ}}}{M}_{\mathrm{ij}}\right)+(1-W_j)\·10\·\mathrm{Log}{M}_{\mathrm{Bestj}},$ Calculate the assessed value of user terminal sub-district, current place and all pilot frequency point candidate cells, wherein Q _Frequencyj, M _{Frequency j}For frequency is the assessed value of the candidate cell of j, W _jFor network side is that frequency is the weight parameter of the cell configuration of j, M _IjFor frequency is first measured value of the cell i of j, N _AjFor frequency is the number of the sub-district of j, M _{Best j}It for frequency first measured value of the sub-district of the first measured value optimum in the sub-district of j.When first measuring amount of network side configuration is Ec/N0, M _{Frequency j}, M _IjAnd M _{Best j}Represent with ratio, when first measuring amount of network side configuration is RSCP, M _{Frequency j}, M _IjAnd M _{Best j}Represent with mW (milliwatt).

403, select the sub-district of satisfying evaluation condition, judge and whether satisfy the sub-district of evaluation condition greater than one.Only there is one if satisfy the sub-district of evaluation condition, then need not sorts, turn to step 406, if the sub-district of satisfying evaluation condition turns to step 404 greater than one.

The 1Q if the assessed value of pilot frequency point candidate cell satisfies condition _{Non used}〉=T _{Non used 2b}+ H _2b/ 2, the assessed value of sub-district, the current place of the terminal 2Q that satisfies condition simultaneously _Used≤ T _{Used 2b}-H _2b/ 2, wherein, Q _{Non used}Be the assessed value of candidate cell, Q _UsedFor the assessed value of current area, utilize computing formula $Q_{\mathrm{frequencyj}}=10\·\mathrm{Log}{M}_{\mathrm{frequencyj}}=W_j\·10\·\mathrm{Log}\left(\underset{i=1}{\overset{N_{\mathrm{Aj}}}{\mathrm{\Σ}}}{M}_{\mathrm{ij}}\right)+(1-W_j)\·10\·\mathrm{Log}{M}_{\mathrm{Bestj}},$ As long as, know the frequency of candidate cell and current area, just can calculate the assessed value of candidate cell and current area, T according to first measured value that measures _{Nonused 2b}, T _{Used 2b}Be the absolute thresholding of network side configuration, H _2bSluggish parameter for the network side configuration.If the assessed value of pilot frequency point candidate cell satisfies condition 1, the assessed value of sub-district, the current place of terminal satisfies condition 2 simultaneously, and continue to satisfy the time of these two conditions greater than first Preset Time, wherein to be network side dispose according to the difference of actual conditions first Preset Time, judges that so this candidate cell satisfies evaluation condition.

404, according to first measured value that obtains the candidate cell that satisfies evaluation condition is carried out descending, judge whether the sub-district that first measured value equates.If the candidate cell that does not have first measured value to equate turns to step 406, if the candidate cell that first measured value equates turns to step 405.

If first measuring amount of network side configuration is Ec/N0, according to the Ec/N0 value that obtains the candidate cell that satisfies evaluation condition is carried out descending, satisfy the candidate cell of evaluation condition according to the arrangement from high to low of the candidate cell Ec/N0 value that satisfies evaluation condition.If the Ec/N0 value of each sub-district has nothing in common with each other, turn to step 406.If the candidate cell that has the Ec/N0 value to equate turns to step 405.

405, second measured value according to candidate cell carries out descending to the candidate cell that described first measured value equates.

If the candidate cell that has the Ec/N0 value to equate, equate and all be optimum such as the Ec/N0 value of A, B, three candidate cells of C, at this moment just do not know that this which sub-district is placed on the first place of formation, need to introduce second measuring amount, RSCP value according to A, B, three candidate cells of C, according to the RSCP value from high to low to A, B, three candidate cells of C are sorted, the highest sub-district of RSCP value is placed on the first place of formation.

406, the candidate cell after will sorting is put into measurement report, and sends described measurement report.

For user terminal, the sub-district that is placed on the measurement report first place is optimum sub-district.After user terminal reported the base station with measurement report, the sub-district switching just can be carried out to terminal according to measurement report in the base station.The sub-district switching is carried out in the sub-district that the base station is at first selected to be positioned at the measurement report first place, gets nowhere if switch, and selects to come in the measurement report deputy sub-district again and carries out the sub-district switching, up to the success of sub-district handover success.

It is a kind of when user terminal carries out the alien frequencies direct-cut operation that the embodiment of the invention provides, the method that switch the sub-district, first measuring amount according to the network side configuration sorts to the sub-district that meets evaluation condition earlier, when first measured value of two above candidate cells equates, according to second measured value sorted once more in the sub-district that first measured value equates, in measurement report, real best sub-district can be come the front like this, guarantee that user terminal switches to the sub-district of real optimum, can improve success rate for switching, switch the signaling load that brings and improve communication quality thereby reduce because of frequent.

Embodiment five:

When user terminal sent same-frequency measure reporting 1D, as shown in Figure 5, the method that switch this sub-district comprised:

501, according to first measuring amount of network side configuration and second measuring amount to measuring with the frequency candidate cell.

First measuring amount of network side configuration is Ec/N0 or RSCP, when first measuring amount of network side configuration is Ec/N0, second measuring amount of network side configuration is exactly RSCP, and when first measuring amount of network side configuration was RSCP, second measuring amount of network side configuration was exactly Ec/N0.The embodiment of the invention is that Ec/N0 is an example with first measuring amount of network side configuration, earlier to carrying out the measurement of Ec/N0 and RSCP with the candidate cell of frequency with sub-district, the current place of user terminal.

502, select the sub-district of satisfying evaluation condition, judge and whether satisfy the sub-district of evaluation condition greater than one.Only there is one if satisfy the sub-district of evaluation condition, then need not sorts, turn to step 505, if the sub-district of satisfying evaluation condition turns to step 503 greater than one.

If with first measured value of the frequency candidate cell 10LogM that satisfies condition _NotBest+ CIO _NotBest〉=10LogM _Best+ CIO _Best+ H _1d/ 2, wherein, M _NotBestBe first measured value with the frequency candidate cell, CIO _NotBestBe self side-play amount of the same frequency candidate cell of network side configuration, M _BestBe first measured value of sub-district, the current place of user terminal, CIO _BestBe self side-play amount of the sub-district, the current place of user terminal of network side configuration, H _1dSluggish parameter for the network side configuration.And the time that continues to satisfy this condition with first measured value of frequency candidate cell is greater than second Preset Time, and wherein to be network side dispose according to the difference of actual conditions second Preset Time, judges that so this candidate cell satisfies evaluation condition.

503, according to first measured value that obtains the candidate cell that satisfies evaluation condition is carried out descending, judge whether the candidate cell that first measured value equates.If the candidate cell that does not have first measured value to equate turns to step 505, if the candidate cell that first measured value equates turns to step 504.

If first measuring amount of network side configuration is Ec/N0, according to the Ec/N0 value that obtains the candidate cell that satisfies evaluation condition is carried out descending, satisfy the candidate cell of evaluation condition according to the arrangement from high to low of the candidate cell Ec/N0 value that satisfies evaluation condition.If the Ec/N0 value of each sub-district has nothing in common with each other, turn to step 505.If the candidate cell that has the Ec/N0 value to equate turns to step 504.

504, second measured value according to candidate cell carries out descending to the candidate cell that described first measured value equates.

If the candidate cell that has the Ec/N0 value to equate, equate and all be optimum such as the Ec/N0 value of A, B, three candidate cells of C, just do not know that at this moment this which sub-district is placed on the first place of formation, need introduction second measuring amount, just RSCP.According to the RSCP value of A, B, three candidate cells of C, according to the RSCP value from high to low to A, B, three candidate cells of C are sorted, the highest sub-district of RSCP value is placed on the first place of formation.

505, the candidate cell after will sorting is put into measurement report, and sends described measurement report.

For user terminal, the sub-district that is placed on the measurement report first place is optimum sub-district.After user terminal reported the base station with measurement report, the sub-district switching just can be carried out to terminal according to measurement report in the base station.The sub-district switching is carried out in the sub-district that the base station is at first selected to be positioned at the measurement report first place, gets nowhere if switch, and selects to come in the measurement report deputy sub-district again and carries out the sub-district switching, up to the success of sub-district handover success.

It is a kind of when user terminal carries out with the frequency direct-cut operation that the embodiment of the invention provides, the method that switch the sub-district, first measuring amount according to the network side configuration sorts to the sub-district that meets evaluation condition earlier, when first measured value of two above candidate cells equates, according to second measured value sorted once more in the sub-district that first measured value equates, in measurement report, real best sub-district can be come the front like this, guarantee that user terminal switches to the sub-district of real optimum, can improve success rate for switching, switch the signaling load that brings and improve communication quality thereby reduce because of frequent.

Embodiment six:

When user terminal sent same-frequency measure reporting 1C, as shown in Figure 6, the method that switch this sub-district comprised:

601, according to first measuring amount and second measuring amount of network side configuration candidate cell is measured.

First measuring amount of network side configuration is Ec/N0 or RSCP, when first measuring amount of network side configuration is Ec/N0, second measuring amount of network side configuration is exactly RSCP, when first measuring amount of network side configuration is RSCP, second measuring amount of network side configuration is exactly Ec/N0, and the embodiment of the invention is that Ec/N0 is an example with first measuring amount of network side configuration.Because user terminal will carry out soft handover, soft handover can only carry out between with the sub-district of frequency, so to carrying out the measurement of Ec/N0 and RSCP with the candidate cell of frequency with sub-district, the current place of user terminal.

602, select the sub-district of satisfying evaluation condition, judge and whether satisfy the sub-district of evaluation condition greater than one.Only there is one if satisfy the sub-district of evaluation condition, then need not sorts, turn to step 605, if the sub-district of satisfying evaluation condition turns to step 603 greater than one.

If with sub-district, current place with first measured value of the frequency candidate cell 10LogM that satisfies condition _New+ CIO _New〉=10LogM _InAS+ CIO _InAS+ H _1c/ 2, wherein, M _NewBe first measured value of the candidate cell in Active Set not, CIO _NewBe self side-play amount of the not candidate cell in Active Set of network side configuration, M _InASBe first measured value of the sub-district that first measured value is minimum in the Active Set, CIO _InASBe self side-play amount of first measured value is minimum in the Active Set of network side configuration sub-district, H _1cSluggish parameter for the network side configuration, in soft handover, more than one sub-district served user terminals simultaneously can be arranged, described Active Set is exactly the set of all sub-districts of current service user terminal, not the candidate cell in Active Set just user terminal may replace in the Active Set candidate cell of poor sub-district.And the time that continues to satisfy this condition with first measured value of frequency candidate cell is greater than the 3rd Preset Time, and wherein to be network side dispose according to the difference of actual conditions the 3rd Preset Time, judges that so this candidate cell satisfies evaluation condition.

603, according to first measured value that obtains the candidate cell that satisfies evaluation condition is carried out descending, judge whether the candidate cell that first measured value equates.If the candidate cell that does not have first measured value to equate turns to step 605, if the candidate cell that first measured value equates turns to step 604.

If first measuring amount of network side configuration is Ec/N0, according to the Ec/N0 value that obtains the candidate cell that satisfies evaluation condition is carried out descending, satisfy the candidate cell of evaluation condition according to the arrangement from high to low of the candidate cell Ec/N0 value that satisfies evaluation condition.If the Ec/N0 value of each sub-district has nothing in common with each other, turn to step 605.If the candidate cell that has the Ec/N0 value to equate turns to step 604.

604, second measured value according to candidate cell carries out descending to the candidate cell that described first measured value equates.

If the candidate cell that has the Ec/N0 value to equate, equate and all be optimum such as the Ec/N0 value of A, B, three candidate cells of C, just do not know that at this moment this which sub-district is placed on the first place of formation, need introduction second measuring amount, just RSCP.According to the RSCP value of A, B, three candidate cells of C, according to the RSCP value from high to low to A, B, three candidate cells of C are sorted, the highest sub-district of RSCP value is placed on the first place of formation.

605, the candidate cell after will sorting is put into measurement report, and sends described measurement report.

For user terminal, the sub-district that is placed on the measurement report first place is optimum sub-district.After user terminal reported the base station with measurement report, the sub-district switching just can be carried out to terminal according to measurement report in the base station.The sub-district switching is carried out in the sub-district that the base station is at first selected to be positioned at the measurement report first place, gets nowhere if switch, and selects to come in the measurement report deputy sub-district again and carries out the sub-district switching, up to the success of sub-district handover success.

It is a kind of when user terminal carries out soft handover that the embodiment of the invention provides, the method that switch the sub-district, first measuring amount according to the network side configuration sorts to the sub-district that meets evaluation condition earlier, when first measured value of two above candidate cells equates, according to second measured value sorted once more in the sub-district that first measured value equates, in measurement report, real best sub-district can be come the front like this, guarantee that user terminal switches to the sub-district of real optimum, can improve success rate for switching, switch the signaling load that brings and improve communication quality thereby reduce because of frequent.

The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.

Claims (11)

1, a kind of method of sub-district switching is characterized in that, comprising:

First measuring amount and second measuring amount according to the network side configuration measure first measured value and second measured value to candidate cell;

According to described first measured value candidate cell that meets evaluation condition is carried out descending;

When first measured value of the candidate cell that meets evaluation condition more than two equates, the candidate cell that described first measured value equates is carried out descending according to second measured value of candidate cell;

Candidate cell after the ordering is put into measurement report, and send described measurement report, switch so that described network side carries out the sub-district according to putting in order of candidate cell in the described measurement report to described network side.

2, the method switched of sub-district according to claim 1 is characterized in that, describedly according to described first measured value candidate cell that meets evaluation condition is carried out also comprising before the descending:

All candidate cells are assessed according to the evaluation condition of network side configuration according to first measured value that obtains, drawn the candidate cell that satisfies evaluation condition.

3, the method for sub-district switching according to claim 2, it is characterized in that, when the alien frequencies direct-cut operation is carried out in described network side configuration, first measured value that described basis obtains is assessed all candidate cells according to the evaluation condition of network side configuration, draw the candidate cell that satisfies evaluation condition, comprising:

Calculate the assessed value of all pilot frequency point candidate cells according to first measured value that obtains, computing formula is $Q_{\mathrm{frequencyj}}=10\·\mathrm{Log}{M}_{\mathrm{frequency\; j}}=W_j\·10\·\mathrm{Log}\left(\underset{i=1}{\overset{N_{\mathrm{Aj}}}{\mathrm{\Σ}}}{M}_{\mathrm{ij}}\right)+(1-W_j)\·10\·{\mathrm{LogM}}_{\mathrm{Best\; j},},$ Q wherein _Frequencyj, M _{Frequency j}For frequency is the assessed value of the candidate cell of j, W _jFor network side is that described frequency is the weight parameter of the candidate cell configuration of j, M _IjFor frequency is first measured value of the cell i of j, N _AjFor frequency is the number of the candidate cell of j, M _{Best j}It for frequency first measured value of the sub-district of measured value optimum in the candidate cell of j;

If in first Preset Time, the assessed value of the described candidate cell Q that satisfies condition _Frequencyj〉=T _{Non used 2b}+ H _2b/ 2, the assessed value of the current area Q that satisfies condition simultaneously _Frequencyj≤ T _{Used 2b}-H _2b/ 2, then described candidate cell satisfies evaluation condition, wherein, and T _{Non used 2b}, T _{Used 2b}Be the absolute thresholding of network side configuration, H _2bSluggish parameter for the network side configuration.

4, the method for sub-district switching according to claim 2, it is characterized in that, when described network side configuration is carried out with the frequency direct-cut operation, first measured value that described basis obtains is assessed all candidate cells according to the evaluation condition of network side configuration, draw the candidate cell that satisfies evaluation condition, comprising:

The 10LogM if first measured value of the candidate cell that obtains satisfies condition _NotBest+ CIO _NotBest〉=10LogM _Best+ CIO _Best+ H _1d/ 2, and the time that continues to satisfy this condition greater than second Preset Time, judge that then described candidate cell satisfies evaluation condition, wherein, M _NotBestBe first measured value of candidate cell, CIO _NotBestBe self side-play amount of the candidate cell of network side configuration, M _BestBe first measured value of current area, CIO _BestBe self side-play amount of the current area of network side configuration, H _1dSluggish parameter for the network side configuration.

5, the method for sub-district switching according to claim 2, it is characterized in that, when soft handover is carried out in described network side configuration, first measured value that described basis obtains is assessed all candidate cells according to the evaluation condition of network side configuration, draw the candidate cell that satisfies evaluation condition, comprising:

The 10LogM if first measured value of the candidate cell that obtains satisfies condition _New+ CIO _New〉=10LogM _InAS+ CIO _InAS+ H _1c/ 2, and the time that continues to satisfy this condition greater than the 3rd Preset Time, judge that then this candidate cell satisfies evaluation condition, wherein, M _NewBe first measured value of the candidate cell in Active Set not, CIO _NewBe self side-play amount of the not candidate cell in Active Set of network side configuration, M _InASBe first measured value of the minimum sub-district of measured value in the Active Set, CIO _InASBe self side-play amount of measured value is minimum in the Active Set of network side configuration sub-district, H _1cBe the sluggish parameter of network side configuration, described Active Set is the set of all sub-districts of current service user terminal.

6, a kind of sub-district device for switching is characterized in that, comprising:

Measurement module is used for according to first measuring amount and second measuring amount of network side configuration candidate cell being measured first measured value and second measured value;

Order module, first measured value that is used for obtaining according to described measurement module carries out descending to the candidate cell that meets evaluation condition; When first measured value of the candidate cell that meets evaluation condition more than two equated, second measured value that obtains according to described measurement module carried out descending to the candidate cell that described first measured value equates;

Sending module is used for the candidate cell after described order module ordering is put into measurement report, and sends described measurement report to described network side, switches so that described network side carries out the sub-district according to putting in order of candidate cell in the described measurement report.

7, sub-district according to claim 6 device for switching is characterized in that, also comprises:

Evaluation module, first measured value that is used for obtaining according to described measurement module is assessed all candidate cells according to the evaluation condition of network side configuration, draws the candidate cell that satisfies evaluation condition;

Described order module, first measured value that specifically is used for obtaining according to described measurement module carries out descending to the candidate cell that meets evaluation condition that described evaluation module obtains; When first measured value of the candidate cell that meets evaluation condition more than two equated, second measured value that obtains according to described measurement module carried out descending to the candidate cell that described first measured value equates.

8, sub-district according to claim 7 device for switching is characterized in that described evaluation module comprises:

Alien frequencies direct-cut operation unit is used for when the alien frequencies direct-cut operation is carried out in the configuration of described network side, calculates the assessed value of all pilot frequency point candidate cells according to first measured value that obtains, and computing formula is $Q_{\mathrm{frequencyj}}=10\·\mathrm{Log}{M}_{\mathrm{frequency\; j}}=W_j\·10\·\mathrm{Log}\left(\underset{i=1}{\overset{N_{\mathrm{Aj}}}{\mathrm{\Σ}}}{M}_{\mathrm{ij}}\right)+(1-W_j)\·10\·{\mathrm{LogM}}_{\mathrm{Best\; j},},$ Q wherein _Frequencyj, M _{Frequency j}For frequency is the assessed value of the candidate cell of j, W _jFor network side is that frequency is the weight parameter of the described candidate cell configuration of j, M _IjFor frequency is first measured value of the cell i of j, N _AjFor frequency is the number of the sub-district of j, M _{Best j}It for frequency first measured value of the sub-district of measured value optimum in the sub-district of j;

Judging unit, if in first Preset Time, the assessed value of the candidate cell that described alien frequencies direct-cut operation unit the obtains Q that satisfies condition _Frequencyj〉=T _{Non used 2b}+ H _2b/ 2, the assessed value of the current area Q that satisfies condition simultaneously _Frequencyj≤ T _{Used 2b}-H _2b/ 2, judge that then described candidate cell satisfies evaluation condition, wherein, T _{Non used 2b}, T _{Used 2b}Be the absolute thresholding of network side configuration, H _2bSluggish parameter for the network side configuration.

9, sub-district according to claim 7 device for switching is characterized in that described evaluation module comprises:

With frequency direct-cut operation unit, be used for when described network side configuration is carried out with the frequency direct-cut operation 10LogM if described first measured value satisfies condition _NotBest+ CIO _NotBest〉=10LogM _Best+ CIO _Best+ H _1d/ 2, and the time that continues to satisfy this condition greater than second Preset Time, judge that then this candidate cell satisfies evaluation condition, wherein, M _NotBestBe first measured value of candidate cell, CIO _NotBestBe self side-play amount of the candidate cell of network side configuration, M _BestBe first measured value of current area, CIO _BestBe self side-play amount of the current area of network side configuration, H _1dSluggish parameter for the network side configuration.

10, sub-district according to claim 7 device for switching is characterized in that described evaluation module comprises:

The soft handover unit is used for when soft handover is carried out in described network side configuration the 10LogM if described first measured value satisfies condition _New+ CIO _New〉=10LogM _InAS+ CIO _InAS+ H _1c/ 2, and the time that continues to satisfy this condition greater than the 3rd Preset Time, judge that then this candidate cell satisfies evaluation condition, wherein, M _NewBe first measured value of the candidate cell in Active Set not, CIO _NewBe self side-play amount of the not candidate cell in Active Set of network side configuration, M _InASBe first measured value of the minimum sub-district of measured value in the Active Set, CIO _InASBe self side-play amount of measured value is minimum in the Active Set of network side configuration sub-district, H _1cBe the sluggish parameter of network side configuration, described Active Set is the set of all sub-districts of current service user terminal.

11, a kind of system of sub-district switching is characterized in that, comprising:

User terminal, be used for all candidate cells being measured first measured value and second measured value according to first measuring amount and second measuring amount of network side configuration, and select the candidate cell that meets evaluation condition according to first measured value, according to described first measured value candidate cell that meets evaluation condition is carried out descending, when first measured value of the candidate cell that meets evaluation condition more than two equates, second measured value according to candidate cell carries out descending to the candidate cell that described first measured value equates, candidate cell after the ordering is put into measurement report, and send described measurement report to described network side;

Network side entity is used to receive the measurement report that user terminal sends, and according to putting in order of sub-district in the described measurement report described user terminal is carried out the sub-district switching.

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