CN102083159A

CN102083159A - Switching controlling method in mobile communication system and wireless network controller

Info

Publication number: CN102083159A
Application number: CN2009102386369A
Authority: CN
Inventors: 王文明; 吴晓梅; 曹秦峰; 赵鑫
Original assignee: China Mobile Group Beijing Co Ltd
Current assignee: China Mobile Group Beijing Co Ltd
Priority date: 2009-11-30
Filing date: 2009-11-30
Publication date: 2011-06-01

Abstract

The invention provides a switching controlling method in a mobile communication system and a wireless network controller. The method comprises the following steps of: (A) determining a measurement quantity needed to be measured and a switching measurement control parameter under the current terminal measurement managing state by the wireless network controller according to the corresponding relation of a preset terminal measurement management status, the measurement quantity needed to be measured and the switching measurement control parameter; (B) issuing a measurement control message to a mobile terminal and/or a base station by the wireless network controller, wherein the measurement control message includes the determined measurement quantity needed to be measured; (C) receiving measurement data which are measured and reported by the mobile terminal and/or the base station according to the measurement quantity needed to be measured, included in the measurement control messageby the wireless network controller; and (D) triggering cell switching by the wireless network controller when the measurement data meet a switching judgment condition confirmed by the switching measurement control parameter. By adopting the technical scheme, more accurate switching control can be realized, and thus the network quality is improved.

Description

Method for handover control in a kind of mobile communication system and radio network controller

Technical field

The present invention relates to mobile communication system, particularly relate to method for handover control and radio network controller in a kind of mobile communication system.

Background technology

At present, the measurement control of mobile communication system and switching controls process comprise the steps: the need measurement value and the handover measurement Control Parameter of mobile communication system network side configuration Network Based, this parameter comprises: Neighboring Cell List and switch decision parameter, the sending measuring control messages, indicating terminal is measured; Terminal is measured according to measuring control messages in the mode of periodicity or Event triggered, and the reporting measurement result; Whether network based terminal measurement result judgement meets handover triggering condition; In this way, then network side is selected switching target small area according to the measurement result of terminal to report, and issues switching command, and indicating terminal switches; Otherwise, not switch, terminal continues to measure according to measuring control messages, and the reporting measurement result.

The present inventor finds in realizing process of the present invention: in mobile communications network, because after network side configures and measures value and handover measurement Control Parameter, current time same measurement value and the handover measurement Control Parameter that is in which type of a kind of employing of terminal no matter, it is accurate inadequately to the control of switching, cause not switching, mistake switches, be to cause that user's communication is of poor quality, a major reason of traction call drop.For addressing this problem, the main thought that traditional optimization means solves the traction call drop is coverage optimization and increases matched adjacent zone that in realizing process of the present invention, the inventor finds to exist on the mobile communications network following two principal contradictions, has influenced optimization effect:

1, Fu Za wireless environment and the covering contradiction that becomes more meticulous and require: wireless environment is complicated and changeable, and the coverage optimization workload is big, and poor effect relies on coverage optimization to eliminate comparatively difficulty of traction call drop problem merely;

2, the contradiction of terminal measurement capability and neighbor cell configuration quantity: the terminal measurement capability is limited, as disposes too much adjacent area, may influence the terminal measuring speed, causes switching untimely.

Summary of the invention

Embodiments of the invention provide method for handover control and the radio network controller in a kind of mobile communication system, to solve the not enough accurate technique problem of switching controls in the prior art.

To achieve these goals, the invention provides the method for handover control in a kind of mobile communication system, wherein, comprise the steps:

Steps A, radio network controller is according to predefined terminal measuring management state and need the measuring amount of measurement and the corresponding relation between the handover measurement Control Parameter, need under current terminal measuring management state to determine the measuring amount and the handover measurement Control Parameter of measurement;

Step B, radio network controller sending measuring control messages comprises the measuring amount that described definite need are measured to portable terminal and/or base station in the described measurement control messages;

Step C, radio network controller receive the measurement data that described portable terminal and/or base station are measured and reported according to the described measuring amount that needs to measure that comprises in the described measurement control messages;

When step D, radio network controller at least one measurement data that reports in described portable terminal and base station satisfied the switch decision condition that described handover measurement Control Parameter determines, triggering cell was switched.

Preferably, described method for handover control, wherein, described handover measurement Control Parameter comprises: the Neighboring Cell List that needs measurement; Also comprise in the measurement control messages that described radio network controller issues: the handover measurement Control Parameter;

After the described step B, before the step C, also comprise:

Described terminal is measured the adjacent area that comprises in the described Neighboring Cell List according to the described measuring amount that needs measurement that comprises in the described measurement control messages, obtains described measurement data, and reports.

Preferably, described method for handover control, wherein, described radio network controller receive described portable terminal and/or base station measurement and the measurement data that reports after, also comprise:

When the measurement data of at least one in described portable terminal and base station of described radio network controller satisfies the trigger condition of terminal measuring management Status Change, be the terminal measuring management state of described trigger condition correspondence with the Status Change of described terminal present located terminal measuring management.

Preferably, described method for handover control, wherein, described terminal and/or base station also comprise after measuring described measurement data:

Described terminal and/or base station are when judging described measurement data and satisfy the switch decision condition of determining according to described handover measurement Control Parameter, and notice radio network controller triggering cell is switched.

Preferably, described method for handover control, wherein, and under initial condition, the initial condition that the terminal measuring management state of radio network controller terminal is set to be scheduled to.

On the other hand, provide a kind of radio network controller, wherein, comprising:

The parameter determination module, measuring amount that is used for according to predefined terminal measuring management state and needs to measure and the corresponding relation between the handover measurement Control Parameter are determined measuring amount and the handover measurement Control Parameter that need measure under current terminal measuring management state;

Measure control messages and issue module, be used for the sending measuring control messages, comprise the measuring amount that described definite need are measured in the described measurement control messages to portable terminal and/or base station;

Data reception module is used for receiving the measurement data that the described measuring amount that needs to measure that described portable terminal and/or base station comprise according to described measurement control messages is measured and reported;

When sub-district handover module, the measurement data that is used in described portable terminal and base station at least one satisfied the switch decision condition that described handover measurement Control Parameter determines, triggering cell was switched.

Preferably, described radio network controller, wherein, described handover measurement Control Parameter comprises: the Neighboring Cell List that needs measurement; Also comprise in the measurement control messages that described radio network controller issues: the handover measurement Control Parameter;

Described terminal and/or base station measurement and the measurement data that reports comprise: described terminal and/or base station are according to the described measuring amount that needs measurement that comprises in the described measurement control messages, to comprising measuring of adjacent area and the measurement data that reports in the described Neighboring Cell List.

Preferably, described radio network controller wherein, also comprises:

Terminal measuring management Status Change module is used for when described measurement data satisfies the trigger condition of terminal measuring management Status Change, is the terminal measuring management state of described trigger condition correspondence with the Status Change of described terminal present located terminal measuring management.

Preferably, described radio network controller, wherein,

Described measurement control messages issues module, be further used for when the Status Change of the residing terminal measuring management of terminal, issue and the described corresponding measurement control messages of terminal measuring management state after changing, comprise the measuring amount and the handover measurement Control Parameter that need measurement under the described terminal measuring management state after changing in the described measurement control messages.

Preferably, described radio network controller, wherein,

Described sub-district handover module is further used for receiving the sub-district switching notice of described terminal to report, and described sub-district switching notice is sent when described measurement data satisfies the switch decision condition of determining according to described handover measurement Control Parameter judging by described terminal.

Another aspect provides the method for handover control in a kind of mobile communication system, comprises the steps:

Steps A 1, network side is according to predefined terminal measuring management state and need the measuring amount of measurement and the corresponding relation between the handover measurement Control Parameter, need under current terminal measuring management state to determine the measuring amount and the handover measurement Control Parameter of measurement;

Step B1, network side sending measuring control messages comprises the measuring amount that described definite need are measured in the described measurement control messages;

Step C1, network side receive described portable terminal according to described measuring amount measurement of measuring and the measurement data that reports of needing that comprises in the described measurement control messages;

When step D1, network side satisfied the switch decision condition that described handover measurement Control Parameter determines in described measurement data, triggering cell was switched.

Another aspect provides the switching control in a kind of mobile communication system, comprising:

Measure control messages and issue module, be used for the sending measuring control messages, comprise the measuring amount that described definite need are measured in the described measurement control messages;

Data reception module is used for receiving described measuring amount measurement of measuring and the measurement data that reports of needing that described portable terminal comprises according to described measurement control messages;

The sub-district handover module is used for when described measurement data satisfies the switch decision condition that described handover measurement Control Parameter determines, triggering cell is switched.

A technical scheme in the technique scheme has following technique effect:

By a plurality of terminal measuring management states are set, and in the different employing of terminal measuring management state and corresponding measurement value of this terminal measuring management state and handover measurement Control Parameter, make different measuring data and the many covers of the configuration handover measurement Control Parameter that the radio network controller of network side can monitor terminal reports, thereby can realize adopting the definite switch decision strategy of different handover measurement Control Parameter at different terminal measuring management states, realized the accurate control of switching, the inaccuracy that the single switch decision strategy of having avoided the single switching control parameter of prior art to determine causes is switched the variety of issue as the traction call drop that causes, has improved the quality of network.

Another technical scheme in the technique scheme has following technique effect:

By when terminal and/or the measurement data that reports satisfy the trigger condition of other terminal measuring management state, with current terminal measuring management Status Change is the terminal measuring management state of trigger condition correspondence, can realize adjusting measurement value and handover measurement Control Parameter, thereby can carry out switching controls more accurately according to the change dynamics ground of terminal measuring management state.

Description of drawings

Fig. 1 is the schematic flow sheet of the method for handover control of the embodiment of the invention;

Fig. 2 is the schematic flow sheet of the method for handover control of another embodiment of the present invention;

Fig. 3 is in the method for handover control of the embodiment of the invention, the corresponding relation between terminal measuring management state and measuring amount and the trigger condition;

Fig. 4 is in the method for handover control of the embodiment of the invention, the corresponding relation between the switch decision parameter of the Neighboring Cell List of terminal measuring management state and configuration and employing;

Fig. 5 is the cell configuration schematic diagram in the method for handover control of one embodiment of the invention;

Fig. 6 is in the method for handover control of one embodiment of the invention, and schematic diagram is switched in the sub-district under the non-area covered state;

Fig. 7 is in the method for handover control of one embodiment of the invention, and schematic diagram is switched in the sub-district under the area covered state.

Embodiment

For technical problem, technical scheme and advantage that the embodiment of the invention will be solved is clearer, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.

Fig. 1 is the schematic flow sheet of the method for handover control in the mobile communication system of the embodiment of the invention.As Fig. 1, the method for this embodiment comprises the steps:

Step 101, radio network controller is according to predefined terminal measuring management state and need the measuring amount of measurement and the corresponding relation between the handover measurement Control Parameter, need under current terminal measuring management state to determine the measuring amount and the handover measurement Control Parameter of measurement;

Step 102, radio network controller sending measuring control messages comprise the measuring amount that described definite need are measured to portable terminal and/or base station in the described measurement control messages;

Step 103, radio network controller receive the measurement data that described portable terminal and/or base station are measured and reported according to the described measuring amount that needs to measure that comprises in the described measurement control messages;

When step 104, radio network controller at least one measurement data that reports in described portable terminal and base station satisfied the switch decision condition that described handover measurement Control Parameter determines, triggering cell was switched.

Embodiments of the invention are by being provided with a plurality of terminal measuring management state (UMMS, UEMeasurement Management Status), and be that the UMM state adopts and this corresponding measuring amount of terminal measuring management state and handover measurement Control Parameter at different terminal measuring management states, make that network side such as radio network controller can monitor terminals and/or the different measuring data that report of base station, and the many covers of configuration handover measurement Control Parameter, thereby can realize at the different handover measurement Control Parameter of different terminal measuring management state configuration, adopt different switch decision strategies, realized the accurate control of switching, the inaccuracy of having avoided the single switch decision strategy of prior art to cause is switched the variety of issue as the traction call drop that causes.

Preferably, described method for handover control, wherein, described handover measurement Control Parameter comprises: the Neighboring Cell List that needs measurement; Also comprise in the measurement control messages that described network side issues: the handover measurement Control Parameter; After the described step 102, before the step 103, also comprise:

Described terminal and/or base station are measured the adjacent area that comprises in the described Neighboring Cell List according to the described measuring amount that needs measurement that comprises in the described measurement control messages, obtain measurement data, and report.

Preferably, the above-mentioned measuring amount of measurement that needs of different terminal measuring management state correspondences is different with the handover measurement Control Parameter.

Preferably, as described in network side receives as radio network controller after portable terminal and/or base station measurement and the measurement data that reports, also comprise: radio network controller is the terminal measuring management state of described trigger condition correspondence with the Status Change of described terminal present located terminal measuring management when the measurement data of at least one satisfies the trigger condition of terminal measuring management Status Change in described portable terminal and base station.Behind change terminal measuring management state, network side such as radio network controller are according to the measurement value and the handover measurement Control Parameter sending measuring control messages of after changing terminal measuring management state correspondence and carry out switching controls.

In the embodiments of the invention, when network side satisfies the trigger condition of other terminal measuring management state by the measurement data that reports in terminal and/or base station, with current terminal measuring management Status Change is the terminal measuring management state of trigger condition correspondence, can realize the different measuring data that monitor terminal and/or base station report, according to measurement result analysis and judgement terminal measuring management state, and dynamically adjust measuring amount and handover measurement Control Parameter according to different terminal measuring management states, issue new measurement control messages, thereby can realize more accurate switching controls.Exemplarily, the handover measurement Control Parameter comprises: the Neighboring Cell List and the switch decision parameter that need measurement, wherein, the switch decision parameter comprises: switching threshold is as switching sluggishness and pursuing sub-district switching threshold, handover trigger time, filtration coefficient etc., and these parameters are the algorithm parameter of existing mobile communication international standard regulation.

Preferably, the trigger condition of above-mentioned terminal measuring management state sets in advance at network side.

Embodiments of the invention improve the measurement control method in the handoff procedure, introduced terminal measuring management state, can be according to mobility, volume of transmitted data and/or the radio signal level of terminal and conditions such as quality different, multiple terminal measuring management state is set.

Preferably, the method for handover control of the embodiment of the invention, wherein, described terminal also comprises after measuring described measurement data:

Described terminal is when judging described measurement data and satisfy the switch decision condition of determining according to described handover measurement Control Parameter, and informing network side triggering cell is switched.

In the embodiments of the invention, terminal and network side can trigger switch decision, with being as the criterion of triggering earlier.

Fig. 2 is the schematic flow sheet of the method for handover control of another embodiment of the present invention.As Fig. 2, the method for this embodiment comprises:

Step 201, the measuring management state sending measuring control messages that network side such as radio network controller are current according to terminal comprises in this measurement control messages: the measuring amount and the handover measurement Control Parameter that need measurement;

Step 202, terminal is carried out DATA REASONING according to measuring control messages, and the reporting measurement data;

After the terminal to report measurement data, radio network controller judges whether to meet handover triggering condition according to measurement data on the one hand, and promptly execution in step 203; Judge whether to trigger the condition of change terminal measuring management state on the one hand, promptly execution in step 206;

Step 203, network side judge whether the measurement data of terminal to report satisfies the handover triggering condition of the switch decision strategy correspondence under the current terminal measuring management state; In this way, execution in step 204 then; Otherwise, execution in step 202;

Step 204, network side is according to the measurement data select target sub-district of terminal to report;

Step 205, terminal issues switching command, carries out to switch, and process ends.

Step 206, network side judge whether measurement data satisfies the trigger condition that terminal is measured Status Change; Exemplarily, whether the measurement data of judging terminal satisfies at least one the trigger condition of other terminal measuring management state except that present located terminal measuring management state; In this way, execution in step 207 then; Otherwise, execution in step 202;

Step 207, terminal then, changes the terminal measuring management state of current terminal measuring management Status Change for the condition correspondence of triggering over to step 201.

In the embodiments of the invention, under initial condition, the UMM state is set to initial condition, can set in advance default conditions as initial condition.This initial condition can be any one terminal measuring management state, the set of perhaps multiple terminal measuring management state.

Realization to the embodiment of the invention is elaborated below.

In the technical scheme of the embodiment of the invention, network side is set a series of terminal measuring management state, and there is corresponding switching judging strategy in every kind of state.Mobile communications network can be a triggering rule based on certain measuring amount and parameter setting relevant terminal measuring management state trigger condition at every kind of terminal measuring management state, and is shown in Figure 3.Among Fig. 3, the corresponding implication of every data is as follows:

A1, A2 ... An: at n the measuring amount of terminal measuring management state A, n is a natural number;

FA (x): at the trigger condition of terminal measuring management state A;

Xa, Ya, Za ...: at the trigger parameter of terminal measuring management state A.

When mobile communication terminal is initiated business, network side can be measured corresponding measuring amount by indicating terminal, with state A is example: network side can indicating terminal to A1, A2 ... a series of measuring amount such as An are measured, when the measurement value of terminal to report is that measurement data satisfies state trigger condition and state trigger parameter (Xa, Ya, Za ...) regulation expression formula the time, that is:

FA(A1、A2、……An、Xa、Ya、Za……)＝True

Judge that then terminal is in UMM state A, the UMM state of terminal is not an A condition as this moment, then changes to this A condition.

The terminal measuring management state measurement amount that the embodiment of the invention relates to includes but not limited to the measuring amount in following field: range measurement; Time measurement; Level measurement; Mass measurement; Snr measurement; Data throughout is measured; Base station/terminal power is measured; Frequency measurement etc.

The embodiment of the invention exemplarily provides the UMM state of following several mobility according to terminal, volume of transmitted data, radio signal level and condition setting such as quality and judges whether to be in the measuring amount that corresponding UMM state need report, the trigger condition and the switchover policy of corresponding UMM state.

One, with terminal and base station between the relevant UMM state of distance: area covered state and non-area covered state.Wherein, area covered (OOD) state refers to the reasonable coverage that terminal has entered other sub-districts, but the state when not switching; Non-area covered (NOD) state refers to the state of end in the reasonable coverage of Serving cell the time.

Judge whether terminal is in the relevant UMM state of above-mentioned distance, the measuring amount that terminal need be measured comprises following at least one:

Timing Advance (Tadv): promptly mobile communication terminal sends out wireless signal, and the mobile communication base station receives the time difference between this wireless signal; Or the mobile communication base station sends out wireless signal, and mobile communication terminal receives the time difference between this wireless signal; Concrete computing formula is:

TADV＝TRX-TTX

Longitude and latitude difference (GPS Difference): promptly according to the terminal and the distance between the base station (terminal needs built-in GPS) of mobile communication terminal longitude and latitude and the calculating of mobile communication base station longitude and latitude, concrete computing formula is:

DGPS＝2R*arcsin(sqrt(0.5*(1-sinα1*sinα2-cosα1*cosα2*cos(β2-β1))))

Wherein α 1, and α 2 is 2 a latitude; β 1, and β 2 is 2 a longitude, and R is an earth radius.

Apart from the correlation behavior trigger condition be:

The trigger condition of area covered state:

In the predetermined first continuous time section T1, Timing Advance or longitude and latitude difference are all the time more than or equal to the predetermined very first time lead threshold value or the first longitude and latitude threshold value; That is, in the predetermined first continuous time section T1, Timing Advance is all the time more than or equal to predetermined very first time lead threshold value; Or in the predetermined first continuous time section T1, the longitude and latitude difference is all the time more than or equal to the first predetermined longitude and latitude threshold value;

The trigger condition of non-area covered state:

In the predetermined second continuous time section, Timing Advance or longitude and latitude difference are all the time less than the predetermined second Timing Advance threshold value or the second longitude and latitude difference threshold.

Exemplarily, the handover measurement Control Parameter under the area covered state comprises: nearby region measurement and switch decision parameter, Provisioning Policy comprise:

Neighbor cell configuration: increase adjacent area quantity;

Switching threshold is provided with: switching threshold configuration in adjacent area, to far progressively promoting, and is done by the sub-district fine optimization according to wireless environment by near apart from different according to Target cell and cell-of-origin;

The configuration of handover trigger time: the handover trigger time is shorter, and does fine optimization according to wireless environment;

The filtration coefficient configuration: filtration coefficient is lower, and does fine optimization according to wireless environment.

And under the area covered state, can force the switching of terminal initiation to specific adjacent area.

Handover measurement Control Parameter Provisioning Policy under the non-area covered state comprises:

Neighbor cell configuration: adjacent area negligible amounts, the only adjacent area of configuration and cell-of-origin close together;

Switching threshold is provided with: the adjacent area switching threshold is done by the sub-district fine optimization according to wireless environment;

The configuration of handover trigger time: the handover trigger time is longer, and does fine optimization according to wireless environment;

The filtration coefficient configuration: filtration coefficient is higher, and does fine optimization according to wireless environment.

According to above-mentioned different switch decision strategies to taking under area covered state and the non-area covered state, under non-area covered situation, terminal only need be measured the adjacent area of internal layer lesser amt, has improved the nearby region measurement precision; Under the area covered situation, terminal is measured the large tracts of land adjacent area, can switch to correct adjacent area fast, avoids causing the traction call drop because of rolling Serving cell and overlay area, adjacent area away from.Thereby, improved the accuracy that terminal is switched.

Two, the relevant UMM state of terminal location, comprising: inactive state (Still): terminal remains static; Low speed mobile status (LSM): terminal is in the low speed mobile status; High-speed moving state (HSM): terminal is in high-speed moving state;

Judge whether terminal is in the relevant UMM state of above-mentioned terminal location, the measuring amount that terminal need be measured comprises following at least one:

Switching frequency: at T continuous time _PIn, the number of times that terminal switches;

Translational speed: the mobile communication terminal translational speed, terminal need be supported GPS in such cases;

The terminal longitude and latitude: the mobile communication terminal longitude and latitude, terminal need be supported GPS in such cases;

Timing Advance (Tadv): mobile communication terminal sends out wireless signal, and the mobile communication base station receives the time difference between this wireless signal; Or the mobile communication base station sends out wireless signal, and mobile communication terminal receives the time difference between this wireless signal;

Persistent district: the current resident Serving cell of terminal.

The trigger condition of inactive state comprises in the following condition at least:

1) when judging according to switching frequency, trigger condition is that switching frequency is lower than the first predetermined switching frequency threshold value;

2) when judging according to the terminal longitude and latitude, trigger condition is: a time segment value T is set _G, computing terminal longitude and latitude mean value L in each time period _Gn, at the individual time period (T of N continuous 1 (first number) _G* N1) in, L _GnMaximum and L _GnMinimum value between difference be lower than predetermined terminal longitude and latitude mean value difference threshold, or L _GnVariance be lower than predetermined longitude and latitude mean value variance threshold values;

3) when judging according to the terminal persistent district, trigger condition is: preestablish a set of cells Scell that terminal is resident, in predetermined Ts continuous time (the 3rd continuous time section), the resident Serving cell of terminal all drops in the set;

4) when judging according to Timing Advance, trigger condition is that a time segment value T is set _A, in each time period, calculate Tadv mean value T _AAn, at the individual time period (T of N continuous 2 (second number) _A* N2) in, T _AAnMaximum and the difference between its minimum value be lower than scheduled time lead mean value difference threshold, or L _AnVariance be lower than Timing Advance mean value variance threshold values;

High-speed moving state comprises in the following trigger condition at least:

1) when judging according to switching frequency, trigger condition is that switching frequency is higher than the second switching frequency threshold value;

2) when judging according to moving velocity of terminal, trigger condition is: in predetermined one section continuous time section, in the 4th continuous time section, the mathematic expectaion of moving velocity of terminal is higher than the first predetermined mathematic expectaion threshold value;

The trigger condition of low speed mobile status comprises in the following condition at least:

1) when judging according to switching frequency, trigger condition is that switching frequency is between inactive state threshold value and high-speed mobile threshold value, promptly between described first switching frequency threshold value and the described second switching frequency threshold value;

2) when judging according to moving velocity of terminal, trigger condition is: in one period predetermined continuous time (the 5th continuous time section), the mathematic expectaion of moving velocity of terminal is lower than the second predetermined mathematic expectaion threshold value, and greater than zero;

Neighbor cell configuration: adjacent area negligible amounts;

Switching threshold is provided with: switching threshold configuration in adjacent area is higher, and does fine optimization according to wireless environment;

The filtration coefficient configuration: filtration coefficient is higher, and does fine optimization according to wireless environment;

Switching control parameter Provisioning Policy under the low speed mobile status comprises:

Neighbor cell configuration: adjacent area negligible amounts;

Also can be provided with under the low speed mobile status and force to switch, promptly can force the switching of terminal initiation to specific adjacent area;

Handover measurement Control Parameter Provisioning Policy under the high-speed moving state comprises:

Neighbor cell configuration: adjacent area quantity is more;

Also can be provided with under the high-speed moving state and force to switch, promptly can force the switching of terminal initiation to specific adjacent area.

According to above-mentioned different switch decision strategies to taking under inactive state, low speed mobile status and the high-speed moving state, under static and lower-speed state, can reduce switching times, avoid causing terminal and network signal load to rise because of frequent the switching, all right control terminal persistent district, the realization traffic load is accurately shared; Under fast state, can switch to correct adjacent area fast, avoid causing the traction call drop, thereby improved the switching accuracy because of rolling Serving cell and overlay area, adjacent area away from.

Three, the relevant UMM state of terminal incoming level comprises: very cover state (InC), promptly terminal is in the state when covering good area; Weak covering state (LoC), the state when promptly terminal is in weak overlay area; Deep fade state (DFC), the state when promptly terminal is in the deep fade zone;

Judge whether terminal is in the relevant UMM state of above-mentioned terminal incoming level, the measuring amount that terminal need be measured comprises following at least one:

The Common Control Channel reference level: the mobile communication base station pilot channel that terminal receives and the incoming level of broadcast channel, as GSM network B CCH RSSI, WCDMA network C PICH RSCP, TD-SCDMA network PCCPCH RSCP, or the like;

Traffic Channel level: the i.e. level of the Traffic Channel that receives of terminal;

The trigger condition of good covering state (InC) comprising: one period continuous time promptly predetermined the 6th continuous time section T _RCIn, Common Control Channel reference level or Traffic Channel level that terminal receives are higher than first level threshold;

Weak covering state (LoC) trigger condition comprises: predetermined one section continuous time T _RCIn (the 7th continuous time section), Common Control Channel reference level or Traffic Channel level that terminal receives are lower than second level threshold;

Deep fade state (DFC) trigger condition comprises: investigate predetermined one section continuous time T _RDIn (the 8th continuous time section), Common Control Channel reference level that terminal receives or Traffic Channel level are if last measured value of incoming level deducts T _RDDifference after the interior maximum is a negative, and is lower than predetermined level difference value threshold value, then is judged to be the deep fade state.

The Provisioning Policy of the handover measurement Control Parameter under the good covering state comprises:

Nearby region measurement and handoff parameter strategy under the weak covering state;

Neighbor cell configuration: quantity appropriateness in adjacent area increases adjacent area between configuration-system;

Switching threshold is provided with: the adjacent area switching threshold is done by the sub-district fine optimization according to wireless environment, and switching threshold between appropriate reduction system impels terminal to cut toward stronger different grid.

Can be provided with under the good covering state and force to switch, promptly can force the switching of terminal initiation to specific adjacent area;

The Provisioning Policy of the handover measurement Control Parameter under the deep fade state comprises:

Switching threshold is provided with: the adjacent area switching threshold is higher, and does fine optimization according to wireless environment;

According to above-mentioned different switch decision strategies to taking under good covering state, weak covering state and the deep fade state, under good covering state, can reduce switching times, avoid causing terminal and network signal load to rise because of frequent the switching; Under weak covering state, can initiatively switch to other adjacent areas of native system or other mobile communication system, avoid causing the weak call drop that covers; Under the deep fade state, can switch to other adjacent areas fast, avoid causing call drop, thereby improve the switching accuracy.

In an embodiment of the present invention, all need terminal and base station to test with up-downgoing quality, up-downgoing interference, up-downgoing signal to noise ratio and data throughout, terminal test down link, base station testing up link.

Four, the state that up-downgoing quality is relevant comprises: deterioration state (LoQ), i.e. up-downgoing deterioration, the state when Block Error Rate is high; Quality normal condition (NoQ), i.e. up-downgoing quality state just often;

Judge whether terminal is in the relevant UMM state of the relevant state of above-mentioned up-downgoing quality, and the measuring amount that terminal maybe need be measured comprises:

Block Error Rate: in a period of time, the CRC check erroneous packets number that terminal or base station receive and the ratio of packet sum;

The trigger condition of deterioration state (LoQ) comprises in the following condition at least:

In one period predetermined continuous time (the 9th continuous time section), the packet Block Error Rate that terminal receives is higher than the first predetermined Block Error Rate threshold value;

In predetermined the 11 section continuous time (the 11 continuous time section), the packet Block Error Rate that the base station receives is higher than the 3rd predetermined Block Error Rate threshold value;

The trigger condition of quality normal condition (NoQ) comprises in the following condition at least:

Predetermined one section continuous time T _QIn (the tenth continuous time section), the packet Block Error Rate that terminal receives is lower than the first predetermined Block Error Rate threshold value;

In one period predetermined continuous time (the 12 continuous time section), the packet Block Error Rate that the base station receives is lower than the 4th predetermined Block Error Rate threshold value.

The Provisioning Policy of the handover measurement Control Parameter under the deterioration state comprises:

Switching threshold is provided with: the adjacent area switching threshold is lower, and does by the sub-district fine optimization according to wireless environment, can be according to switching threshold between wireless environment appropriateness reduction system;

Be provided with under the deterioration state and force to switch, promptly can force the switching of terminal initiation, as switching to alien frequencies, different system adjacent area to specific adjacent area;

Under the quality normal condition,,, do fine optimization according to wireless environment as nearby region measurement and switch decision parameter are not had particular requirement to the handover measurement Control Parameter.

According to above-mentioned different switch decision strategies to taking under quality degradation mode and the quality normal condition, can when deterioration, switch to other adjacent areas of native system or other mobile communication system fast, avoid causing call drop, thereby improved the switching accuracy.

Five, up-downgoing disturbs relevant UMM state to comprise:

High interference state (HiI): the state when higher is disturbed in up-downgoing;

Low disturbance state (LoI): up-downgoing is disturbed lower;

Judge whether terminal is in above-mentioned up-downgoing and disturbs the relevant UMM state of relevant state, and the measuring amount that terminal or base station need be measured comprises:

Interference level: on the carrier wave of mobile communication terminal work, the up-downgoing interference level that mobile communication base station or mobile communication terminal record;

The trigger condition of high interference state (HiI) comprises in the following condition at least:

In one period predetermined continuous time (the 13 continuous time section), the descending time slot interference level that terminal is measured is higher than the first interference level threshold value;

In one period predetermined continuous time (the 15 continuous time section), the ascending time slot interference level of base station measurement is higher than the 3rd predetermined interference level threshold value;

The trigger condition of low disturbance state (LoI) comprises in the following condition at least:

In one period predetermined continuous time (the 14 continuous time section), the descending time slot interference level that terminal is measured is lower than the second predetermined interference level threshold value;

In one period predetermined continuous time (the 16 continuous time section), the ascending time slot interference level of base station measurement is lower than the 4th predetermined interference level threshold value.

Above-mentioned the 13,14,15,16 continuous time section can be identical, as be all T _I.

The Provisioning Policy of the switching observing and controlling Control Parameter under the high interference state comprises:

Be provided with under the high interference state and force to switch, can force terminal to initiate as the adjacent area of alien frequencies, different system, to switch to specific adjacent area;

Under low disturbance state, to the handover measurement Control Parameter, nearby region measurement and handoff parameter, no particular requirement is set, do fine optimization according to wireless environment.

According to above-mentioned different switch decision strategies to taking under high interference state and the low disturbance state, can when high interference, switch to other adjacent areas of native system or other mobile communication system fast, avoid causing call drop, thereby improved the switching accuracy.

Six, the UMM state that up-downgoing signal to noise ratio is relevant comprises:

Signal-to-noise ratio degradation state (LoCI): the up-downgoing signal to noise ratio is lower;

Signal to noise ratio normal condition (HiCI): the up-downgoing signal to noise ratio is higher;

Judge whether terminal is in the relevant UMM state of above-mentioned up-downgoing signal to noise ratio, and the measuring amount that terminal need be measured comprises at least as the next item down:

Common Control Channel is with reference to signal to noise ratio: the mobile communication base station pilot channel that terminal receives and the signal to noise ratio of broadcast channel, and as WCDMA network C PICH C/I, TD-SCDMA network PCCPCH C/I, or the like;

The Traffic Channel signal to noise ratio: up-downgoing Traffic Channel signal to noise ratio SIR, as the sir value of WCDMA network and TD_SCDMA network.

The trigger condition of signal-to-noise ratio degradation state (LoCI) comprising: in one period predetermined continuous time (the 17 continuous time section), Common Control Channel is lower than the first predetermined snr threshold with reference to signal to noise ratio or Traffic Channel signal to noise ratio;

Signal to noise ratio normal condition (HiCI) trigger condition: in one period predetermined continuous time (the 18 continuous time section), Common Control Channel is higher than the second predetermined snr threshold with reference to signal to noise ratio or Traffic Channel signal to noise ratio.

Above-mentioned predetermined the 17 continuous time section with the 18 continuous time section can be identical, as be all time period T _CI, interior above-mentioned first snr threshold and second snr threshold can equate.

The Provisioning Policy of the handover measurement Control Parameter under the signal-to-noise ratio degradation state comprises:

The filtration coefficient configuration: filtration coefficient is lower, and does fine optimization according to wireless environment;

The signal-to-noise ratio degradation state is provided with and force switches, and can force terminal to initiate switching to specific adjacent area such as alien frequencies, different system adjacent area;

Under the signal to noise ratio normal condition, to the handover measurement Control Parameter, there is not particular requirement as nearby region measurement and handoff parameter, do fine optimization according to wireless environment.

According to above-mentioned different switch decision strategies to taking under signal-to-noise ratio degradation state and the signal to noise ratio normal condition, can when signal-to-noise ratio degradation, switch to other adjacent areas of native system or other mobile communication system fast, avoid causing call drop, thereby improved the switching accuracy.

Seven, data throughout is measured relevant UMM state, comprising:

The user leaves state (AFK): the user is online, but does not use any business, is in the hanging wire state;

User online status (BTK): the user is online and use professional.

Judge whether terminal is in above-mentioned data throughout and measures relevant UMM state, and the measuring amount that terminal and base station need be measured comprises:

Up-downgoing data throughout: mobile communication terminal up-downgoing throughput.

The trigger condition that the user leaves state (AFK) comprises: in one period predetermined continuous time (the 19 continuous time section), user's up-downgoing data throughout is lower than the first predetermined throughput threshold value;

User online status (BTK) trigger condition: in one period predetermined continuous time (the 20 continuous time section), user's up-downgoing data throughout is higher than the second predetermined throughput threshold value;

Above-mentioned predetermined the 19 continuous time section with the 20 continuous time section can be identical, as be all time period T _TIn; The above-mentioned first throughput threshold value can be identical with the second throughput threshold value, also can be inequality.

The adjacent switchover policy that the user leaves under the state comprises:

Force to switch: can force terminal to initiate switching to specific adjacent area such as alien frequencies, different system adjacent area;

Switchover policy under the user online status comprises;

According to the above-mentioned different switch decision strategies of taking under state and the user online status that the user is left, can when leaving, the user initiatively switch to low speed mobile communication system (as switching to GPRS network) from the TD network from high-speed mobile communication system, when the user is online, initiatively switch to high-speed mobile communication system (as switch to the TD network from GPRS network) from the low speed mobile communication system, thereby realized accurately sharing of traffic load between the different mobile communication system, improved resource utilization ratio.

Eight, the relevant UMM state of base station or terminal transmit power comprises:

Full power emission state (FuP): mobile communication base station or terminal transmit power reach the corresponding ability or the maximum of configuration parameter permission;

High power transmission state (HiP): the transmitting power of mobile communication base station or terminal is higher, as is higher than the first predetermined transmitting power threshold value;

Low power transmissions state (LoP): mobile communication base station or terminal transmit power are lower, as are lower than the second predetermined transmitting power threshold value;

For base station and terminal, first, second transmitting power threshold value that is used for comparison can be identical or different.

Judge whether terminal is in above-mentioned data throughout and measures relevant UMM state, and the measuring amount that terminal or base station need be measured comprises at least as the next item down:

Terminal transmit power: i.e. mobile communication terminal transmitting power;

Base station transmitting power: the i.e. transmitting power of mobile communication base station on specific downlink traffic channel;

The trigger condition of full power emission state (FuP) comprises in the following condition at least:

In one period predetermined continuous time (the 21 continuous time section), the mobile communication terminal transmitting power reaches terminal capability all the time, or reaches the maximum that the terminal configuration parameter allows;

In one period predetermined continuous time (the 24 continuous time section), base station transmitting power reaches base station ability all the time, or reaches the maximum that the base station configuration parameter allows.

The trigger condition of high power transmission state (HiP) comprises in the following condition at least:

In one period predetermined continuous time (the 22 continuous time section), the mobile communication terminal transmitting power is higher than the first predetermined transmitting power threshold value;

In one period predetermined continuous time (the 25 continuous time section), base station transmitting power is higher than the 3rd predetermined transmitting power threshold value.

The trigger condition of low power transmissions state (LoP) comprises in the following condition at least:

In one period predetermined continuous time (the 23 continuous time section), the mobile communication terminal transmitting power is lower than the predetermined second transmitting power threshold value;

In one period predetermined continuous time (the 26 continuous time section), base station transmitting power is lower than the 4th predetermined transmitting power threshold value;

Above-mentioned the 21 continuous time section to the section 26 continuous time can be identical, as be all time period T _p, above-mentioned transmitting power threshold value can be identical or different.

The Provisioning Policy of handover measurement Control Parameter comprises under the full power emission state:

Can be provided with under the full power emission state and force switch, can force terminal to initiate switching to specific adjacent area such as alien frequencies, different system adjacent area.

The Provisioning Policy of the handover measurement Control Parameter under the high power transmission state comprises:

Under the low power transmissions state, handover measurement Control Parameter such as nearby region measurement and switch decision parameter there are not particular requirement, do fine optimization according to wireless environment.

According to above-mentioned different switch decision strategies to taking under full power state, high power and the low power state, can when being in full power or high power state, terminal switch to other adjacent areas of native system or other mobile communication system fast, avoid causing call drop, thereby improved the switching accuracy.

In concrete the application, the UMM state is not limited to above-mentioned several.

In specific implementation, can open certain several UMM state at concrete application scenarios, and when the measuring amount that needs measurement is set, the union of the measuring amount that several UMM states of desirable judgement need.

Embodiments of the invention allow on the sub-district, mobile communication base station, at every kind of corresponding handover measurement Control Parameter of UMM state configuration, exemplarily, as Neighboring Cell List and switch decision parameter.Particularly, referring to shown in Figure 4.As Fig. 4, show the Neighboring Cell List and the switch decision parameter of correspondence when terminal is in UMM state A to state M.When network judges that terminal is in different UMM state, can issue Neighboring Cell List and switch decision parameter under the corresponding state.

According to above-mentioned description,, Neighboring Cell List do not had specific (special) requirements to some UMM state to the handover measurement Control Parameter Provisioning Policy under the different UMM states.

In conjunction with Fig. 4 the concrete step of carrying out of the method for handover control of the embodiment of the invention is described:

A, when mobile communication terminal MS initiated business, the mobile communications network SOT state of termination was set to initial condition, the sending measuring control messages:

Measure the measurement of correlation amount that should comprise the UMM state in the control messages, comprise in this example every kind of state the differentiation measuring amount (A1, A2 ... An, B1, B2 ... M1, M2 ... Mn), the state trigger condition and the state trigger parameter of each UMM state can be notified terminal, also can not notify terminal;

Measure in the control messages and should comprise initial condition, below be designated state A, parameter configuration down, mobile communications network indicates mobile communication terminal to the adjacent sub-district (N in the Neighboring Cell List _A1N _An) measure, the switch decision parameter can be notified terminal, also can not notify terminal;

B, mobile communication terminal and base station are measured value and are measured according to the indication of measuring control messages each, and reported data, and it can be periodically to report that data report mode, also can be that the Event triggered mode reports;

C, when the value that records when mobile communication base station and terminal satisfies the trigger condition of certain UMM state, then trigger Status Change, SOT state of termination is set to corresponding UMM state, below be designated state M, and carry out dynamic handoff parameter adjustment according to Status Change, issue the Neighboring Cell List (N under this state _M1, N _M2, N _M3N _Mn) and switch decision parameter (T _HM, H _HM, C _HM), the indication mobile communication terminal is measured according to new Neighboring Cell List and handoff parameter;

D, when recording the value of certain adjacent area such as level, quality or the like and satisfy the judgment condition of switch decision parameter regulation as mobile communication terminal, then informing network side radio network controller starts the handoff procedure to this adjacent area; When the mobile communication base station recorded the value of certain adjacent area such as level, quality or the like and satisfies the judgment condition of switch decision parameter regulation, then informing network side radio network controller started the handoff procedure to this adjacent area

The application case explanation:

Below, in the TD-SCDMA mobile communications network, the measurement control/handoff algorithms of judging based on distance is an example, and technique effect of the present invention is described.The basic ideas that distance is switched are when terminal is left the Serving cell area of coverage but in time do not switched to peripheral adjacent area, judge that terminal is in the area covered state.It is as follows that distance is switched relevant measurement value and trigger condition:

Area covered state measurement amount: Timing Advance Tadv;

Area covered state trigger parameter: trigger duration TimetoTrigger, Timing Advance threshold value TadvThreshold

Area covered state trigger condition: in the continuous time of TimetoTrigger parameter regulation, the threshold value that the Tadv value that mobile communication terminal records is stipulated greater than TadvThreshold all the time;

It is as follows that distance is switched relevant Neighboring Cell List and switch decision parameter configuration:

Neighboring Cell List under the non-area covered state;

Switch decision parameter under the non-area covered state;

Neighboring Cell List under the area covered state

Switch decision parameter under the area covered state.

As Fig. 5, have 10 base stations among the figure, 30 sub-districts, serial number be sub-district A1 to sub-district J3, A1 is the Serving cell of current terminal:

For the A1 sub-district, dispose as follows

(1) area covered state measurement amount:

TadvThreshold: area covered Event triggered threshold value

TimetoTrigger: area covered Event triggered duration

(2) the adjacent area parameter under the initial condition, the initial condition of terminal is set to non-area covered state in this example, under this state:

Neighboring Cell List: A2, A3, B2, B3, H1, J1, J2, totally 7 adjacent areas;

The switch decision parameter comprises:

Switch sluggish Hysteresis:6dB

TimetoTrigger：1280ms

Cell individual thresholding (CIO Cell Individual Offset): dispose one by one according to different adjacent areas

Filtration coefficient: 6;

(3) the adjacent area parameter under the area covered state:

Neighboring Cell List: A2, A3, B2, B3, H1, J1, J2, B1, C2, C3, D2, D3, E1, E2, E3, F1, F2, G3, H3, I1, I2, totally 21 adjacent areas;

The switch decision parameter comprises:

Hysteresis: be higher than normal Hysteresis parameter, as 8dB

TimetoTrigger: be lower than normal TimetoTrigger parameter, as 160～320ms

CIO: dispose one by one according to different adjacent areas

Filtration coefficient: be lower than the normal filtration coefficient, as 0 or 2

Under normal circumstances, terminal is positioned at the A1 cell footprint, this moment, terminal only need be measured 7 sub-districts of periphery, in the same time, the adjacent area negligible amounts, then more at the measurement report quantity of each adjacent area, help improving the accuracy of measuring and switching, as shown in Figure 6, terminal switches to B2 from A1.

Under the situation of area covered, terminal is away from the A1 cell coverage area, this moment, network judged that terminal is in the area covered state, network issues the area covered Neighboring Cell List, increased the number of adjacent area under this state, this moment, terminal need be measured a large amount of adjacent areas, but because under the area covered state, the optimization personnel can dispose independent switch decision parameter, can take to shorten the TimetoTrigger time flexibly, dwindle parameter optimization means such as filtration coefficient, make terminal to switch to F2, as shown in Figure 7 from A1.

Measurement control and handover mechanism according to the present invention's regulation, mobile communications network can dispose different Neighboring Cell List and switch decision parameter at different condition, for control survey that becomes more meticulous and handoff procedure, improving network quality has bigger using value and meaning.

Still switch to example with distance, under normal circumstances, terminal only need be measured the adjacent area of internal layer lesser amt, has improved the nearby region measurement precision; Under the area covered situation, terminal is measured the large tracts of land adjacent area, can switch to correct adjacent area fast, avoids causing the traction call drop because of rolling Serving cell and overlay area, adjacent area away from.

After mobile communications network was introduced terminal measuring management (UMM) state, mobile communications network can store and add up the UMM state of mobile communication terminal, and according to the behavior of statistics analysis user, being used for the business datum analysis, or auxiliary network optimization.

The invention also discloses the radio network controller in a kind of mobile communication system.Fig. 8 is the structural representation of the network side apparatus of the embodiment of the invention.As Fig. 8, this network side apparatus comprises: parameter determination module 801, measuring amount that is used for according to predefined terminal measuring management state and needs to measure and the corresponding relation between the handover measurement Control Parameter are determined measuring amount and the handover measurement Control Parameter that need measure under current terminal measuring management state; Measure control messages and issue module 802, be used for the sending measuring control messages, comprise the measuring amount that described definite need are measured in the described measurement control messages to portable terminal and/or base station; Data reception module 803 is used for receiving the measurement data that the described measuring amount that needs to measure that described portable terminal and/or base station comprise according to described measurement control messages is measured and reported; When sub-district handover module 804, the measurement data that is used in described portable terminal and base station at least one satisfied the switch decision condition that described handover measurement Control Parameter determines, triggering cell was switched.

Preferably, described radio network controller, wherein, described handover measurement Control Parameter comprises: the Neighboring Cell List that needs measurement; Described terminal and/or base station measurement and the measurement data that reports comprise: described terminal and/or base station are according to the described measuring amount that needs measurement that comprises in the described measurement control messages, to comprising the measurement data of measuring and reporting of adjacent area in the described Neighboring Cell List.

Preferably, described radio network controller, wherein, terminal measuring management Status Change module, being used for when described measurement data satisfies the trigger condition of terminal measuring management Status Change, is the terminal measuring management state of described trigger condition correspondence with the Status Change of described terminal present located terminal measuring management.

Preferably, described radio network controller, wherein, described measurement control messages issues module, be further used for when the Status Change of the residing terminal measuring management of terminal, issue and the described corresponding measurement control messages of terminal measuring management state after changing, comprise the measuring amount and the handover measurement Control Parameter that need measurement under the described terminal measuring management state after changing in the described measurement control messages.

Preferably, described radio network controller wherein, also comprises in the measurement control messages that described network side issues: the handover measurement Control Parameter; Described sub-district handover module, be further used for receiving the sub-district switching notice of described terminal to report, described sub-district switching notice is being sent when the down-run survey data of judging network side satisfy the switch decision condition of determining according to described handover measurement Control Parameter by described terminal.

In other embodiments of the invention, can realize the changing method of the embodiment of the invention by base station, mobility management unit (MME) or other equipment with handover measurement controlled function.Issue corresponding measurement control messages to portable terminal by base station, mobility management unit (MME) or other equipment according to the current UMM state of terminal with handover measurement controlled function, and judging whether to satisfy the switch decision condition that the handover measurement Control Parameter is determined according to the measurement data of portable terminal, triggering cell is switched.The change of UMM state and example do not repeat them here with reference to noted earlier.

The embodiment of the invention also provides the method for handover control in a kind of mobile communication system, and this method comprises the steps:

In the changing method of this embodiment, also comprise: when the measurement data of described portable terminal satisfies the trigger condition of terminal measuring management Status Change, be the terminal measuring management state of described trigger condition correspondence the Status Change of described terminal present located terminal measuring management.Further, network side issues the measurement control messages under this UMM state, and this measurement control messages comprises measuring amount and the handover measurement Control Parameter that the need of this UMM state correspondence are measured.Wherein, the change and the example of UMM state are described with the front, do not repeat them here.

Preferably, above-mentioned network side can be carried out above-mentioned steps by radio network controller, base station, mobility management unit (MME) and/or other equipment with handover measurement controlled function.

The embodiment of the invention also provides the switching control in a kind of mobile communication system, this network side apparatus comprises: the parameter determination module, measuring amount that is used for according to predefined terminal measuring management state and needs to measure and the corresponding relation between the handover measurement Control Parameter are determined measuring amount and the handover measurement Control Parameter that need measure under current terminal measuring management state; Measure control messages and issue module, be used for the sending measuring control messages, comprise the measuring amount that described definite need are measured in the described measurement control messages; Data reception module is used for receiving described measuring amount measurement of measuring and the measurement data that reports of needing that described portable terminal comprises according to described measurement control messages; The sub-district handover module is used for when described measurement data satisfies the switch decision condition that described handover measurement Control Parameter determines, triggering cell is switched.

Preferably, the switching control of the embodiment of the invention also comprises: terminal measuring management Status Change module, when being used at least one measurement data that reports and satisfying the trigger condition of terminal measuring management Status Change, be the terminal measuring management state of described trigger condition correspondence with the Status Change of described terminal present located terminal measuring management in described portable terminal and base station

Preferably, above-mentioned measurement control messages issues module, be further used for when the Status Change of the residing terminal measuring management of terminal, issue and the described corresponding measurement control messages of terminal measuring management state after changing, comprise the measuring amount and the handover measurement Control Parameter that need measurement under the described terminal measuring management state after changing in the described measurement control messages.

Preferably, above-mentioned switching control can be embodied as: radio network controller, base station, mobility management unit (MME) and/or other have the equipment of handover measurement controlled function.

The present invention allows the different conditions of network side according to terminal, dispose different Neighboring Cell List and measuring amount and handoff parameter, network side issues different Neighboring Cell List and parameter according to the difference of terminal measuring management state is judged, the wireless environment and cover that has solved the complexity of network the become more meticulous contradiction that requires and the contradiction of terminal measurement capability and neighbor cell configuration quantity have realized accurately switching controls.

The above 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 described principle of the embodiment of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims

1. the method for handover control in the mobile communication system is characterized in that, comprises the steps:

2. method for handover control according to claim 1 is characterized in that, described handover measurement Control Parameter comprises: the Neighboring Cell List that needs measurement; Also comprise in the measurement control messages that described radio network controller issues: the handover measurement Control Parameter;

After the described step B, before the step C, also comprise:

3. method for handover control according to claim 1 and 2 is characterized in that, described radio network controller receive described portable terminal and/or base station measurement and the measurement data that reports after, also comprise:

4. method for handover control according to claim 3 is characterized in that, described terminal and/or base station also comprise after measuring described measurement data:

5. method for handover control according to claim 1 is characterized in that, under initial condition, and the initial condition that the terminal measuring management state of radio network controller terminal is set to be scheduled to.

6. method for handover control according to claim 3 is characterized in that,

Described terminal measuring management state comprises: area covered state and non-area covered state;

Among the described step B, described portable terminal measurement and the measurement data that reports comprise at least one in the following measuring amount: Timing Advance and longitude and latitude difference;

The trigger condition of described area covered state comprises:

Condition a1, in the predetermined first continuous time section, described Timing Advance or longitude and latitude difference are all the time more than or equal to the predetermined very first time lead threshold value or the first longitude and latitude difference threshold;

The trigger condition of described non-area covered state comprises:

Condition a2, in the predetermined second continuous time section, described Timing Advance or longitude and latitude difference are all the time less than the predetermined second Timing Advance threshold value or the second longitude and latitude difference threshold.

7. method for handover control according to claim 3 is characterized in that,

Described terminal measuring management state comprises: inactive state, low speed mobile status and high-speed moving state;

Among the described step B, described portable terminal measurement and the measurement data that reports comprise at least one in the following measuring amount: switching frequency, translational speed, terminal present located longitude and latitude, Timing Advance and the current resident Serving cell of terminal;

The trigger condition of described inactive state comprises at least one in the following condition:

Condition b1, switching frequency are lower than the first predetermined switching frequency threshold value;

Condition b2, in continuous first number preset time section, the maximum of the terminal longitude and latitude mean value that calculates in each time period and the difference between the minimum value are lower than predetermined terminal longitude and latitude mean value difference threshold, or the variance of the terminal longitude and latitude mean value that calculates in described each time period is lower than predetermined longitude and latitude mean value variance threshold values;

Condition b3, in predetermined the 3rd continuous time section, the resident Serving cell of terminal all drops in the predetermined set;

Condition b4, at continuous second number in the time period, the maximum of the described Timing Advance mean value that calculates in each time period and the difference between the minimum value are lower than preset time lead mean value difference threshold, or the variance of the described Timing Advance mean value that calculates in each time period is lower than preset time lead mean value variance threshold values;

The trigger condition of described high-speed moving state comprises at least one in the following condition:

Condition b5, switching frequency are higher than the second switching frequency threshold value;

Condition b6, in predetermined the 4th continuous time section, the mathematic expectaion of moving velocity of terminal is higher than the first predetermined mathematic expectaion threshold value;

The trigger condition of described low speed mobile status comprises at least one in the following condition:

Condition b7, switching frequency is between described first switching frequency threshold value and the described second switching frequency threshold value, and the described first switching frequency threshold value is less than the described second switching frequency threshold value;

Condition b8, in predetermined the 5th continuous time section, the mathematic expectaion of moving velocity of terminal is lower than the second predetermined mathematic expectaion threshold value, and greater than zero.

8. method for handover control according to claim 3 is characterized in that,

Described terminal measuring management state comprises: very cover state, weak covering state and deep fade state;

Among the described step B, described portable terminal measurement and the measurement data that reports comprise at least one in the following measuring amount: Common Control Channel reference level and Traffic Channel level;

The trigger condition of described good covering state comprises:

Condition c1, in predetermined the 6th continuous time section, Common Control Channel reference level that terminal receives or Traffic Channel level are higher than the first predetermined level threshold;

The trigger condition of described weak covering state comprises:

Condition c2, in predetermined the 7th continuous time section, Common Control Channel reference level that terminal receives or Traffic Channel level are lower than the second predetermined level threshold;

The trigger condition of described deep fade state comprises:

Condition c3, in predetermined the 8th continuous time section, the difference that the Common Control Channel reference level that terminal receives or last measured value of Traffic Channel level deduct after the maximum in this time period is a negative, and is lower than predetermined level difference value threshold value.

9. method for handover control according to claim 3 is characterized in that,

Described terminal measuring management state comprises: deterioration state and quality normal condition;

Among the described step B, described portable terminal measurement and the measurement data that reports comprise: Block Error Rate;

The trigger condition of described deterioration state comprises:

Condition d1, in predetermined the 9th continuous time section, the packet Block Error Rate that terminal receives is higher than the first predetermined Block Error Rate threshold value;

The trigger condition of described quality normal condition comprises:

Condition d2, in predetermined the tenth continuous time section, the packet Block Error Rate that terminal receives is lower than the second predetermined Block Error Rate threshold value.

10. method for handover control according to claim 3 is characterized in that,

Among the described step B, described base station measurement and the data that report comprise: Block Error Rate;

The trigger condition of described deterioration state comprises:

Condition e1, in predetermined the 11 continuous time section, the packet Block Error Rate that the base station receives is higher than the 3rd predetermined Block Error Rate threshold value;

The trigger condition of described quality normal condition comprises:

Condition e2, in predetermined the 12 continuous time section, the packet Block Error Rate that the base station receives is lower than the 4th predetermined Block Error Rate threshold value.

11. method for handover control according to claim 3 is characterized in that,

Described terminal measuring management state comprises: high interference state and low disturbance state;

Among the described step B, described portable terminal measurement and the measurement data that reports comprise: interference level;

The trigger condition of described high interference state comprises:

Condition f1, in predetermined the 13 continuous time section, the descending time slot interference level that terminal is measured is higher than the first predetermined interference level threshold value;

The trigger condition of described low disturbance state comprises:

Condition f2, in predetermined the 14 continuous time section, the descending time slot interference level that terminal is measured is lower than the second predetermined interference level threshold value.

12. method for handover control according to claim 3 is characterized in that,

Among the described step B, described base station measurement and the measurement data that reports comprise: interference level;

The trigger condition of described high interference state comprises:

Condition g1, in predetermined the 15 continuous time section, the ascending time slot interference level of base station measurement is higher than the 3rd predetermined interference level threshold value;

The trigger condition of described low disturbance state comprises:

Condition g2, in predetermined the 16 continuous time section, the ascending time slot interference level of base station measurement is lower than the 4th predetermined interference level threshold value.

13. method for handover control according to claim 3 is characterized in that,

Described terminal measuring management state comprises: signal-to-noise ratio degradation state and signal to noise ratio normal condition;

Among the described step B, described portable terminal measurement and the measurement data that reports comprise at least one in the following measuring amount: Common Control Channel is with reference to signal to noise ratio and Traffic Channel signal to noise ratio;

The trigger condition of described signal-to-noise ratio degradation state comprises:

Condition h1, in predetermined the 17 continuous time section, Common Control Channel is lower than the first predetermined snr threshold with reference to signal to noise ratio or Traffic Channel signal to noise ratio;

The trigger condition of described signal to noise ratio normal condition comprises:

Condition h2, in predetermined the 18 continuous time section, Common Control Channel is higher than the second predetermined snr threshold with reference to signal to noise ratio or Traffic Channel signal to noise ratio.

14. method for handover control according to claim 3 is characterized in that,

Described terminal measuring management state comprises: the user leaves state and user online status;

Among the described step B, described portable terminal and base station measurement and the measurement data that reports comprise: the up-downgoing data throughout;

The trigger condition that described user leaves state comprises:

Condition i1, in predetermined the 19 continuous time section, user's up-downgoing data throughout is lower than the first predetermined throughput threshold value;

The trigger condition of described user online status comprises:

Condition i2, in predetermined the 20 continuous time section, user's up-downgoing data throughout is higher than the second predetermined throughput threshold value.

15. method for handover control according to claim 3 is characterized in that,

Described terminal measuring management state comprises: full power emission state, high power transmission state and low power transmissions state;

Among the described step B, described portable terminal measurement and the measurement data that reports comprise: terminal transmit power;

The trigger condition of described full power emission state comprises:

Condition j1, in predetermined the 21 continuous time section, terminal transmit power reaches terminal capability all the time, or reaches the maximum that the terminal configuration parameter allows;

The trigger condition of described high power transmission state comprises:

Condition j2, in predetermined the 22 continuous time section, terminal transmit power is higher than the first predetermined transmitting power threshold value;

The trigger condition of described low power transmissions state comprises:

Condition j3, in predetermined the 23 continuous time section, terminal transmit power is lower than the second predetermined transmitting power threshold value.

16. method for handover control according to claim 1 is characterized in that,

Among the described step B, described base station measurement and the measurement data that reports comprise: base station transmitting power;

The trigger condition of described full power emission state comprises:

Condition k1, in predetermined the 24 continuous time section, base station transmitting power reaches base station ability all the time, or reaches the maximum that the base station configuration parameter allows;

The trigger condition of described high power transmission state comprises:

Condition k2, in predetermined the 25 continuous time section, base station transmitting power is higher than the 3rd predetermined transmitting power threshold value;

The trigger condition of described low power transmissions state comprises:

Condition k3, in predetermined the 26 continuous time section, terminal transmit power is lower than the 4th predetermined transmitting power threshold value.

17. a radio network controller is characterized in that, comprising:

18. radio network controller according to claim 17 is characterized in that, described handover measurement Control Parameter comprises: the Neighboring Cell List that needs measurement; Also comprise in the measurement control messages that described radio network controller issues: the handover measurement Control Parameter;

19. according to claim 17 or 18 described radio network controllers, it is characterized in that, also comprise:

Terminal measuring management Status Change module, when being used at least one measurement data that reports and satisfying the trigger condition of terminal measuring management Status Change, be the terminal measuring management state of described trigger condition correspondence with the Status Change of described terminal present located terminal measuring management in described portable terminal and base station.

20. radio network controller according to claim 17 is characterized in that,

21. radio network controller according to claim 17 is characterized in that,

22. the method for handover control in the mobile communication system is characterized in that, comprises the steps:

23. the switching control in the mobile communication system is characterized in that, comprising: