CN105101247A - Mobility state estimate enhancement method and device based on switching type specific weight - Google Patents
Mobility state estimate enhancement method and device based on switching type specific weight Download PDFInfo
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- CN105101247A CN105101247A CN201510550875.3A CN201510550875A CN105101247A CN 105101247 A CN105101247 A CN 105101247A CN 201510550875 A CN201510550875 A CN 201510550875A CN 105101247 A CN105101247 A CN 105101247A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
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Abstract
The invention discloses a mobility state estimate enhancement method and device based on a switching type specific weight and relates to the technical field of mobile communications. The method comprises: determining the switching type of a mobile terminal according to the types of a source cell and a target cell when a serving cell is switched for the mobile terminal; obtaining a specific weight of the present switching according to the current mobility state and the switching type of the mobile terminal, and accumulating historical switching weights in an MSE sliding window; estimating the mobility state of the mobile terminal based on the result of switching weight accumulation in the MSE sliding window; and when the mobility state of the mobile terminal changes, modifying the switching configuration of the mobile terminal by use of the MeasConfig information units of an RRC-connected reconfiguration message. The method has the advantages that the correlation of the prediction result of the mobility state estimate to an actual speed and predicted long-time stability are improved and the overhead of the network broadcasting cell switching weights is reduced; meanwhile, the switching success rate of the mobile terminal is increased based on the accurate mobility state estimate result.
Description
Technical field
The invention belongs to mobile communication technology field, relate to a kind of mobile status based on switching type certain weights and estimate Enhancement Method and device.
Background technology
In a wireless communication system, along with subscriber equipment (UE, UserEquipment) movement, the signal quality of subscriber equipment current area is deteriorated the condition that can not maintain required for communication, subscriber equipment will be switched to the good neighbor cell of signal quality by network side usually, to ensure the service quality of user.Traditional cell merge is that network side obtains the signal strength signal intensity of current area and neighbor cell according to the handover measurement report of terminal, triggers the selection of switching and switching target small area based on certain variable structure contorl.
Due to Large-sized Communication instrument, such as bullet train, movement velocity is very fast, for subscriber equipment in the inner, if when network side switches according to normal switching flow, may occur that subscriber equipment moves out current area, but switch situation about also not completing, thus cause handoff failure, dropped calls.
In prior art, someone proposes a kind of " mobile status estimates (MSE, mobilitystateestimate) method " based on homogeneous network.The method main thought is, in 30s sliding window, be in the subscriber equipment of connected state when switching, the switching times of base station side MSE module counting user, according to the motion state of statistics estimating user at the end of sliding window, motion state is divided into High-speed, Middle-speed and Normal-speed, often kind of corresponding a kind of handoff parameter configuration of motion state, it is made to be switched to Target cell fast for lower TTT and A3 of High-speed status user setting is biased, Middle-speed status user configures medium TTT and A3 and is biased, balancing network signaling consumption while guarantee handover success rate, normal-speed configures normal TTT and A3 and is biased.
Existing mobile status method of estimation is good in homogeneous network service behaviour, but introducing macrocell and low power nodes (as picocells, femtocells, relaynodes) after the isomery small cell network formed, its estimated result and actual speed correlation reduce greatly, can accurately the motion state of estimating user.Because low power nodes coverage is less, in dense set web area, the mobile subscriber of middling speed or low speed appoints so can carry out a large amount of switchings, causes MSE statistics higher.
Somebody proposes a kind of MSE method based on community specific weight values.The method is that different switching type distributes statistical weight, macrocellular-macrocellular, macrocellular-microcellulor, microcellulor-macrocellular and microcellulor-microcellulor is correspondence [1 respectively, 0.3,0.3,0.15], be improved at the statistical accuracy of initial MSE30s sliding window by this improvement, but the prediction stability after handover configurations changes is lower, the method adopts the MSE entity being positioned at UE side simultaneously, needs the weights of network side broadcast cell, considerably increases network signaling overhead.
Summary of the invention
In view of this, a kind of mobile status based on switching type certain weights is the object of the present invention is to provide to estimate Enhancement Method and device, solve the problem that mobile status estimated result in heterogeneous network is not high with velocity correlation degree, improve the long-time stability of mobile status estimation simultaneously.
For achieving the above object, the invention provides following technical scheme:
Mobile status based on switching type certain weights estimates (MobilityStateEstimateMSE) Enhancement Method, comprises the following steps:
1) time point and the current motion state that mobile terminal transfers to RRC-CONNECTED state is obtained;
2) obtain the current cell-of-origin type of mobile terminal, when mobile terminal carries out Serving cell switching, according to described cell-of-origin type and switching target small area type, determine the switching type of mobile terminal;
3) according to described switching type and mobile terminal current motion state, obtain the specific weight values of this switching, and carry out in MSE sliding window history switch weights add up;
4) when MSE determination time, point arrived, the motion state of mobile terminal is estimated based on the switching weights accumulation result in the MSE sliding window time;
5) when motion state of mobile terminal changes, base station side connects the handover configurations of the MeasConfig information word amendment mobile terminal of reconfiguration message by RRC.
Further, described acquisition mobile terminal transfers to time point and the current motion state of RRC-CONNECTED state, specifically comprises: obtain mobile terminal is transferred to CONNECTED state time point by IDLE state, as the start time point of MSE sliding window; Mobile terminal initial motion state is defaulted as Normal-speed.
Further, the described switching type according to cell-of-origin type and switching target small area type determination mobile terminal, specifically comprises: according to the measurement result of mobile terminal reporting, obtains the switching target small area mark meeting preset switching condition; Inquiry neighbor cell identity map table, obtains switching target small area type; In conjunction with cell-of-origin type and Target cell type determination switching type, described switching type comprises macrocellular-microcellulor, macrocellular-macrocellular, microcellulor-macrocellular and microcellulor-microcellulor.
Further, the specific record weights of described acquisition this switching, comprising: inquire about relevant switching weights mapping table from motion state of mobile terminal to motion state, obtain the switching type specific weight values mapping table corresponding with current motion state;
The relevant weight table that switches of described motion state comprises: High-speed state mobile terminals macrocellular-macrocellular, macrocellular-microcellulor, microcellulor-macrocellular and microcellulor-microcellulor correspondence [0.75 respectively, 0.3, 0.25, 0.1], Middle-speed state mobile terminals macrocellular-macrocellular, macrocellular-microcellulor, microcellulor-macrocellular and microcellulor-microcellulor correspondence [1 respectively, 0.55, 0.35, 0.2], Normal-speed state mobile terminals macrocellular-macrocellular, macrocellular-microcellulor, microcellulor-macrocellular and microcellulor-microcellulor correspondence [1.25 respectively, 0.75, 0.55, 0.3],
Described motion state is correlated with and switches the Query List of weight table as inquiry switching type specific weight values;
The specific record weights of described acquisition this switching also comprise: inquire about the mapping table from switching type to switching type specific weight values, obtain the MSE consistent with current switching type and record weights; Described weights are defined as the accumulated value of MSE record move terminal switch historical information.
Further, the described motion state based on the switching weights accumulation result estimation mobile terminal in the MSE sliding window time specifically comprises: obtain motion state of mobile terminal determination time point according to described MSE sliding window start time point and MSE sliding window duration; When described determination time, point arrived, the weights accumulation result that inquiry MSE switches based on history to the mapping table of motion state, the motion state of estimation mobile terminal;
Described motion state comprises High-speed, Middle-speed and Normal-speed, and corresponding weights interval is respectively High-speed6<weight_count<9, Middle-speed3<weight_count<6, Normal-speed0<weight_count<3.
Further, described when motion state changes, base station side connects the handover configurations of the MeasConfig information word amendment mobile terminal of reconfiguration message by RRC, specifically comprise:
Inquiry motion state is to handoff parameter mapping table, obtain the handoff parameter allocation list under this state, described handoff parameter allocation list comprises: High-speed state mobile terminals TTT and A3 be corresponding [128ms respectively, 1dB], Middle-speed state mobile terminals TTT and A3 respectively corresponding [256ms, 3dB], Normal-speed state mobile terminals TTT and A3 be corresponding [480MS, 3dB] respectively;
Mobile terminal carries out measurement based on the configuration that base station issues and reports and switch;
Start next round MSE sliding window.
Present invention also offers a kind of mobile status based on switching type certain weights and estimate intensifier, comprise a kind of mobile terminal and a kind of base station controller:
Described mobile terminal comprises:
Measuring unit, for measuring the Reference Signal Received Power of mobile terminal current service cell and adjacent cell;
Measurement reports unit, during for reaching default measurement reported event threshold value in Serving cell and adjacent cell Reference Signal Received Power difference, this event is added trigger event list; Course of event in described measurement event list certain time delay still meet preset measure report condition time, these events are added reported event list, event in reported event list sorted according to described Reference Signal Received Power, the event in report list is to target BS;
First acquiring unit, for obtaining the handoff parameter configuration messages of current service cell;
Second acquisition unit, for obtaining the handoff parameter configuration messages that the rear MSE unit of motion state change regenerates;
Receiving element, for receiving switching command, carries the cell ID of Target cell in described switching command;
Switch unit, for being switched to described Target cell according to described switching command;
First updating block, for after described handover success, upgrades the handoff parameter configuration of mobile terminal according to the Target cell handoff parameter configuration messages obtained;
Second updating block, for after described motion state changes, according to the handoff parameter configuration of the handoff parameter configuration messages renewal mobile terminal that MSE regenerates;
Described base station controller comprises:
Measurement result receiving element, for the measurement result of mobile terminal receive, carries the cell ID meeting preset switching condition in described measurement result;
Switching command transmitting element, for when judging that mobile terminal meets preset switching condition, issues switching command to mobile terminal, carries the cell ID of Target cell in described switching command;
Base station side mobile status estimation module, for estimating the motion state of mobile terminal;
Handoff parameter configuration distributing unit, for the handoff parameter configuration of the initialization mobile terminal when mobile terminal access base station; Configure to mobile terminal for re-issuing handoff parameter after the configuration of MSE unit renewal handoff parameter.
Further, described mobile status estimation module, comprising:
Mobile terminal switches record cell, and for adding up in the MSE sliding window time, under connection status, the history of mobile terminal switches weights;
Motion state of mobile terminal estimation unit, according to switching weights accumulation result to motion state of mobile terminal mapping table, estimate the motion state that mobile terminal is up-to-date, described motion state comprises high speed, middling speed and normal speed;
Handover configurations information generating unit, for when motion state of mobile terminal changes, generates base station side handoff parameter configuration information.
Further, described mobile terminal switch unit comprises:
First enquiry module, for inquiry specific switching weights mapping table from motion state of mobile terminal to motion state, obtains the switching type weight table corresponding with current motion state;
First determination module, is used for inquiring about the inquiry table of switching type specific weight values for described switching type weight table being defined as the second enquiry module;
Second enquiry module, for inquiry from switching type to switching type specific weight values mapping table, obtains the MSE consistent with current switching type and records weights;
Second determination module, switches the sum weight of record for described weights being defined as MSE;
Described mobile terminal switches record cell and also comprises:
First computing unit, within the MSE sliding window time, after mobile terminal receives switching command, successful synchronization is to Target cell, and base station side MSE unit carries out weights based on switching type and adds up;
Second computing unit, within the MSE sliding window time, after mobile terminal receives switching command, the term of execution of switching, Target cell CQI is lower than threshold value, mobile terminal handoff failure, and base station side MSE unit carries out weights based on switching type and adds up;
3rd computing unit, within the MSE sliding window time, when cell-of-origin issues switching command, the wireless link of mobile terminal and cell-of-origin is in desynchronizing state, mobile terminal handoff failure, and base station side MSE unit carries out weights based on switching type and adds up.
Further, described motion state of mobile terminal estimation unit comprises:
3rd enquiry module, for inquiring about MSE weights accumulation result to motion state of mobile terminal mapping table, obtains corresponding motion state of mobile terminal;
3rd determination module, for being defined as current mobile terminal motion state by described motion state;
Described handover configurations information generating unit comprises:
4th enquiry module, for inquiring about the mapping table between motion state to handoff parameter configuration, obtains the handoff parameter configuration information corresponding with motion state;
4th determination module, for being defined as the handoff parameter configuration of current mobile terminal to be handed down to by described handoff parameter.
Beneficial effect of the present invention is:
1, in the present invention, the switching type weight table that mobile status estimation module uses can adjust according to the change of motion state, and the increase along with speed reduces the weights proportion of each statistics.Same weights mapping table is all used relative to all motion states of prior art, the network side mobile status estimation module that the present invention proposes can estimate motion state of mobile terminal accurately, especially for velocity variations mobile terminal frequently, can after speed of mobile terminal change, estimate the up-to-date motion state of mobile terminal accurately and adjust, and then ensure that high speed mobile terminal is switched to the expense of low speed mobile terminal in Target cell and minimizing fast.Simultaneously because this mobile status estimation module is positioned at network side, the signaling consumption for broadcast cell weights can be reduced.
2, the weights statistics of mobile status estimation module comprises handover success, state 2 handoff failure and state 3 handoff failure opportunity, the handover success moment is only added up relative in prior art, default motions state is that the high speed mobile terminal under normal-speed there will be a large amount of handoff failures, by adding up the situation of handoff failure, can ensure that weights accumulation result is higher than High-speed mobile status threshold value within the sliding window time, improve mobile status and estimate accuracy.
Accompanying drawing explanation
In order to make object of the present invention, technical scheme and beneficial effect clearly, the invention provides following accompanying drawing and being described:
Fig. 1 is the flow chart that mobile status provided by the invention estimates Enhancement Method first embodiment;
Fig. 2 is the flow chart of the first embodiment obtaining switching type in the embodiment of the present invention;
Fig. 3 is the present invention obtains the first embodiment of switching type weights mapping table flow chart according to current motion state;
Fig. 4 is the present invention obtains the first embodiment of the specific estimation weights of switching type flow chart according to switching type;
Fig. 5 is the switching weights schematic diagram of High-speed mobile terminal in this application scene;
Fig. 6 is the switching weights schematic diagram of Middle-speed mobile terminal in this application scene;
Fig. 7 is the switching weights schematic diagram of Normal-speed mobile terminal in this application scene;
The schematic diagram of the mobile terminal that Fig. 8 provides for the embodiment of the present invention;
The schematic diagram of the base station controller that Fig. 9 provides for the embodiment of the present invention;
The schematic diagram of the mobile status estimation module that Figure 10 provides for the embodiment of the present invention;
The schematic diagram of the mobile status estimation module mobile terminal switching record cell that Figure 11 provides for the embodiment of the present invention;
The schematic diagram of the mobile status estimation module motion state of mobile terminal estimation unit that Figure 12 provides for the embodiment of the present invention;
The schematic diagram of the mobile status estimation module handover configurations information generating unit that Figure 13 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
The present invention is according to cell-of-origin type and switching target small area type, determine the switching type of mobile terminal, according to switching type and mobile terminal current motion state, obtain the specific weight values of this switching, and in MSE sliding window, carry out history switch weights and add up, finally estimate the motion state of mobile terminal based on the switching weights accumulation result in the MSE sliding window time.
See the flow chart that Fig. 1, Fig. 1 are mobile status estimation Enhancement Method first embodiments that the embodiment of the present invention provides.
Steps A 1, acquisition mobile terminal are transferred to the time point of RRC-CONNECTED state and are obtained current mobile terminal motion.
Concrete, can by up signaling base station when mobile node transfers CONNECTED state to by IDLE state, this time point is switched the starting point of historical record by base station side mobile status estimation unit as mobile terminal, the motion state of the mobile terminal of initialization is simultaneously Normal-speed.
The cell-of-origin type that steps A 2, acquisition mobile terminal are current, when mobile terminal carries out Serving cell switching, according to described cell-of-origin type and switching target small area type, determines the switching type of mobile terminal.
Concrete, base station side can accesses network topology information, can by obtaining Target Cell Identifier in the measurement reporting information of mobile terminal and then inquiring Target cell type.
Steps A 3, according to described switching type and mobile terminal current motion state, obtain the specific weight values of this switching, and in MSE sliding window, carry out history switch weights and add up.
Concrete, within the MSE sliding window time, if mobile terminal switches, base station side MSE needs to carry out 2 layers of mapping based on mobile terminal current motion state and switching type and obtains corresponding weight value.
Steps A 4, when determination time, point arrived, estimate the motion state of mobile terminal based on the switching weights accumulation result in the MSE sliding window time.
Concrete, the termination time point of this sliding window can be determined by the MSE initial time of record and sliding window duration.Motion state comprises High-speed, Middle-speed and Normal-speed, and often kind of corresponding weights interval of state, comprises for weights interval:
Table 1 motion state weights are interval
Steps A 5, when motion state of mobile terminal changes, base station side by RRC connect reconfiguration message MeasConfig information word amendment mobile terminal handover configurations.
Concrete, after a MSE sliding window time, if the motion state estimated is different from state before, then need amendment handover configurations, mobile terminal carries out measurement based on the configuration that base station issues and reports and switch afterwards, and starts next round MSE sliding window.
It is the flow chart of the first embodiment obtaining switching type in inventive embodiments see Fig. 2, Fig. 2.In embodiments of the present invention, obtain the cell-of-origin type that mobile terminal is current, according to described cell-of-origin type and switching target small area type, determine that the step (steps A 2) of the switching type of mobile terminal can comprise:
Step B1, measurement result according to mobile terminal reporting, obtain the switching target small area mark meeting preset switching condition.
Concrete, the event that mobile terminal is measured in reported event list meets preset switching condition at TTT time lapse always, and mobile terminal selects RSRP optimum subdistrict to report source base station as Target cell.
Step B2, inquiry neighbor cell identity map table, obtain switching target small area type.
Concrete, base station side based on the reporting information received, query aim cell type.
Step B3, in conjunction with cell-of-origin type and Target cell type determination switching type.
Concrete, described switching type comprises macrocellular-microcellulor, macrocellular-macrocellular, microcellulor-macrocellular and microcellulor-microcellulor.
It is the flow chart of the first embodiment obtaining switching type weights mapping table in the embodiment of the present invention according to current motion state see Fig. 3, Fig. 3.In embodiments of the present invention, according to described switching type and mobile terminal current motion state, obtain the specific weight values of this switching, and the step (steps A 3) of carrying out history switching weights cumulative in MSE sliding window can comprise:
Step C1, to inquire about from motion state of mobile terminal to motion state and relevantly switch weights mapping table, obtain the switching type specific weight values mapping table corresponding with current motion state.
Concrete, described motion state relevant switching weight table is as shown in table 2, comprising:
Table 2. motion state is relevant switches weights mapping table
| Macrocellular-macrocellular; Macrocellular-microcellulor; Microcellulor-macrocellular; Microcellulor-microcellulor | |
| High-speed | [0.75,0.3,0.25,0.1] |
| Middle-speed | [1.0,0.55,0.35,0.2] |
| Normal-speed | [1.25,0.75,0.55,0.3] |
Step C2, described motion state being correlated with switches the Query List of weight table as inquiry switching type specific weight values.
Concrete, this mapping table is defined as switching type specific weight values question blank by mobile status estimation module.
See Fig. 4, be the flow chart of the first embodiment obtaining the specific estimation weights of switching type in the embodiment of the present invention according to switching type see Fig. 4, Fig. 4.In embodiments of the present invention, according to described switching type and mobile terminal current motion state, obtain the specific weight values of this switching, and the step (steps A 3) of carrying out history switching weights cumulative in MSE sliding window can also comprise:
Step D1, inquire about mapping table from switching type to switching type specific weight values, obtain the MSE consistent with current switching type and record weights.
Concrete, the mapping table of described switching type specific weight values is as shown in table 3, comprising:
Table 3 switching type specific weight values mapping table
| Macrocellular-macrocellular | Macrocellular-microcellulor | Microcellulor-macrocellular | Microcellulor-microcellulor | |
| High-speed | 0.75 | 0.3 | 0.25 | 0.1 |
| Middle-speed | 1.0 | 0.55 | 0.35 | 0.2 |
| Normal-speed | 1.25 | 0.75 | 0.55 | 0.3 |
Step D2, described weights are defined as the accumulated value of MSE record move terminal switch historical information.
Concrete, mobile status estimation module will inquire about gained weights as weight accumulation.
See the switching weights schematic diagram that Fig. 5, Fig. 5 are High-speed mobile terminals in this application scene.In embodiments of the present invention, inquiry is from switching type to the mapping table of switching type specific weight values, obtain the step (step D1) that the MSE consistent with current switching type record weights can comprise, concrete, High-speed state mobile terminals macrocellular-macrocellular, macrocellular-microcellulor, microcellulor-macrocellular and microcellulor-microcellulor is corresponding weights [0.75 respectively, 0.3,0.25,0.1].
See the switching weights schematic diagram that Fig. 6, Fig. 6 are Middle-speed mobile terminals in this application scene.In embodiments of the present invention, inquiry is from switching type to the mapping table of switching type specific weight values, obtain the step (step D1) that the MSE consistent with current switching type record weights can comprise, concrete, Middle-speed state mobile terminals macrocellular-macrocellular, macrocellular-microcellulor, microcellulor-macrocellular and microcellulor-microcellulor is corresponding weights [1.0 respectively, 0.55,0.35,0.2].
See the switching weights schematic diagram that Fig. 7, Fig. 7 are Normal-speed mobile terminals in this application scene.In embodiments of the present invention, inquiry is from switching type to the mapping table of switching type specific weight values, obtain the step (step D1) that the MSE consistent with current switching type record weights can comprise, concrete, Normal-speed state mobile terminals macrocellular-macrocellular, macrocellular-microcellulor, microcellulor-macrocellular and microcellulor-microcellulor is corresponding weights [1.25 respectively, 0.75,0.55,0.3].
The present invention also provides mobile status to estimate intensifier, is the schematic diagram of the mobile terminal that the embodiment of the present invention provides see Fig. 8, Fig. 8.
In embodiments of the present invention, mobile terminal comprises:
Measuring unit 101, for measuring the Reference Signal Received Power of mobile terminal current service cell and adjacent cell;
Measurement reports unit 102, during for reaching default measurement reported event threshold value in described Serving cell and adjacent cell Reference Signal Received Power difference, this event is added trigger event list.Course of event in described measurement event list certain time delay still meet preset measure report condition time, these events are added reported event list, event in reported event list sorted according to described Reference Signal Received Power, the event in report list is to target BS;
First acquiring unit 103, for obtaining the handoff parameter configuration messages of current service cell;
Second acquisition unit 104, for obtaining the handoff parameter configuration messages that the rear MSE unit of motion state change regenerates;
Receiving element 105, for receiving switching command, carries the cell ID of Target cell in described switching command;
Switch unit 106, for being switched to described Target cell according to described switching command;
First updating block 107, for after described handover success, upgrades the handoff parameter configuration of mobile terminal according to the Target cell handoff parameter configuration messages obtained;
Second updating block 108, for after described motion state changes, according to the handoff parameter configuration of the handoff parameter configuration messages renewal mobile terminal that MSE regenerates.
See the schematic diagram that Fig. 9, Fig. 9 are the base station controllers that the embodiment of the present invention provides.
In the embodiment of the present invention, base station controller comprises:
Measurement result receiving element 201, for the measurement result of mobile terminal receive, carries the cell ID meeting preset switching condition in described measurement result;
Switching command transmitting element 202, for when judging that mobile terminal meets preset switching condition, issues switching command to mobile terminal, carries the cell ID of Target cell in described switching command;
Mobile status estimation module 203, for estimating the motion state of mobile terminal;
Handoff parameter configuration distributing unit 204, for the handoff parameter configuration of the initialization mobile terminal when mobile terminal access base station; Configure to mobile terminal for re-issuing handoff parameter after the configuration of MSE unit renewal handoff parameter.
See the schematic diagram that Figure 10, Figure 10 are the mobile status estimation module that the embodiment of the present invention provides.
In the embodiment of the present invention, base station side mobile status estimation module 203 comprises:
Mobile terminal switches record cell 301, and for adding up in the MSE sliding window time, under connection status, the history of mobile terminal switches weights;
Motion state of mobile terminal estimation unit 302, according to switching weights accumulation result to motion state of mobile terminal mapping table, estimate the motion state that mobile terminal is up-to-date, described motion state comprises high speed, middling speed and normal speed;
Handover configurations information generating unit 303, for when motion state of mobile terminal changes, generates base station side handoff parameter configuration information.
See the schematic diagram that Figure 11, Figure 11 are the mobile status estimation module mobile terminal switching record cells 301 that the embodiment of the present invention provides;
First enquiry module 401, for inquiry specific switching weights mapping table from motion state of mobile terminal to motion state, obtains the switching type weight table corresponding with current motion state;
First determination module 402, is used for inquiring about the inquiry table of switching type specific weight values for described switching type weight table being defined as the second enquiry module;
Second enquiry module 403, for inquiry from switching type to switching type specific weight values mapping table, obtains the MSE consistent with current switching type and records weights;
Second determination module 404, switches the sum weight of record for described weights being defined as MSE.
First computing unit 405, within the MSE sliding window time, after mobile terminal receives switching command, successful synchronization is to Target cell, and base station side MSE unit carries out weights based on switching type and adds up;
Second computing unit 406, within the MSE sliding window time, after mobile terminal receives switching command, the term of execution of switching, Target cell CQI is lower than threshold value, mobile terminal handoff failure, and base station side MSE unit carries out weights based on switching type and adds up;
3rd computing unit 407, within the MSE sliding window time, when cell-of-origin issues switching command, the wireless link of mobile terminal and cell-of-origin is in desynchronizing state, mobile terminal handoff failure, and base station side MSE unit carries out weights based on switching type and adds up.
See, 12, Figure 12 is the schematic diagram of the mobile status estimation module motion state of mobile terminal estimation unit 302 that the embodiment of the present invention provides;
3rd enquiry module 501, for inquiring about MSE weights accumulation result to motion state of mobile terminal mapping table, obtains corresponding motion state of mobile terminal;
3rd determination module 502, for being defined as current mobile terminal motion state by described motion state.
See, 13, Figure 13 is the schematic diagram of the mobile status estimation module handover configurations information generating unit 303 that the embodiment of the present invention provides;
4th enquiry module 601, for inquiring about the mapping table between motion state to handoff parameter configuration, obtains the handoff parameter configuration information corresponding with motion state;
4th determination module 602, for being defined as the handoff parameter configuration of current mobile terminal to be handed down to by described handoff parameter.
What finally illustrate is, above preferred embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although by above preferred embodiment to invention has been detailed description, but those skilled in the art are to be understood that, various change can be made to it in the form and details, and not depart from claims of the present invention limited range.
Claims (10)
1. the mobile status based on switching type certain weights estimates an Enhancement Method, it is characterized in that: comprise the following steps:
1) time point and the current motion state that mobile terminal transfers to RRC-CONNECTED state is obtained;
2) obtain the current cell-of-origin type of mobile terminal, when mobile terminal carries out Serving cell switching, according to described cell-of-origin type and switching target small area type, determine the switching type of mobile terminal;
3) according to described switching type and mobile terminal current motion state, obtain the specific weight values of this switching, and carry out in MSE sliding window history switch weights add up;
4) when MSE determination time, point arrived, the motion state of mobile terminal is estimated based on the switching weights accumulation result in the MSE sliding window time;
5) when motion state of mobile terminal changes, base station side connects the handover configurations of the MeasConfig information word amendment mobile terminal of reconfiguration message by RRC.
2. a kind of mobile status based on switching type certain weights according to claim 1 estimates Enhancement Method, it is characterized in that: described acquisition mobile terminal transfers to time point and the current motion state of RRC-CONNECTED state, specifically comprise: obtain mobile terminal is transferred to CONNECTED state time point by IDLE state, as the start time point of MSE sliding window; Mobile terminal initial motion state is defaulted as Normal-speed.
3. a kind of mobile status based on switching type certain weights according to claim 1 estimates Enhancement Method, it is characterized in that: the described switching type according to cell-of-origin type and switching target small area type determination mobile terminal, specifically comprise: according to the measurement result of mobile terminal reporting, obtain the switching target small area mark meeting preset switching condition; Inquiry neighbor cell identity map table, obtains switching target small area type; In conjunction with cell-of-origin type and Target cell type determination switching type, described switching type comprises macrocellular-microcellulor, macrocellular-macrocellular, microcellulor-macrocellular and microcellulor-microcellulor.
4. a kind of mobile status based on switching type certain weights according to claim 1 estimates Enhancement Method, it is characterized in that: the specific record weights of described acquisition this switching, comprise: inquire about relevant switching weights mapping table from motion state of mobile terminal to motion state, obtain the switching type specific weight values mapping table corresponding with current motion state;
The relevant weight table that switches of described motion state comprises: High-speed state mobile terminals macrocellular-macrocellular, macrocellular-microcellulor, microcellulor-macrocellular and microcellulor-microcellulor correspondence [0.75 respectively, 0.3, 0.25, 0.1], Middle-speed state mobile terminals macrocellular-macrocellular, macrocellular-microcellulor, microcellulor-macrocellular and microcellulor-microcellulor correspondence [1 respectively, 0.55, 0.35, 0.2], Normal-speed state mobile terminals macrocellular-macrocellular, macrocellular-microcellulor, microcellulor-macrocellular and microcellulor-microcellulor correspondence [1.25 respectively, 0.75, 0.55, 0.3],
Described motion state is correlated with and switches the Query List of weight table as inquiry switching type specific weight values;
The specific record weights of described acquisition this switching also comprise: inquire about the mapping table from switching type to switching type specific weight values, obtain the MSE consistent with current switching type and record weights; Described weights are defined as the accumulated value of MSE record move terminal switch historical information.
5. a kind of mobile status based on switching type certain weights according to claim 1 estimates Enhancement Method, it is characterized in that: the described motion state based on the switching weights accumulation result estimation mobile terminal in the MSE sliding window time specifically comprises: obtain motion state of mobile terminal determination time point according to described MSE sliding window start time point and MSE sliding window duration; When described determination time, point arrived, the weights accumulation result that inquiry MSE switches based on history to the mapping table of motion state, the motion state of estimation mobile terminal;
Described motion state comprises High-speed, Middle-speed and Normal-speed, and corresponding weights interval is respectively High-speed6<weight_count<9, Middle-speed3<weight_count<6, Normal-speed0<weight_count<3.
6. a kind of mobile status based on switching type certain weights according to claim 1 estimates Enhancement Method, it is characterized in that: described when motion state changes, base station side connects the handover configurations of the MeasConfig information word amendment mobile terminal of reconfiguration message by RRC, specifically comprise:
Inquiry motion state is to handoff parameter mapping table, obtain the handoff parameter allocation list under this state, described handoff parameter allocation list comprises: High-speed state mobile terminals TTT and A3 be corresponding [128ms respectively, 1dB], Middle-speed state mobile terminals TTT and A3 respectively corresponding [256ms, 3dB], Normal-speed state mobile terminals TTT and A3 be corresponding [480MS, 3dB] respectively;
Mobile terminal carries out measurement based on the configuration that base station issues and reports and switch;
Start next round MSE sliding window.
7. the mobile status based on switching type certain weights estimates an intensifier, it is characterized in that: comprise a kind of mobile terminal and a kind of base station controller:
Described mobile terminal comprises:
Measuring unit, for measuring the Reference Signal Received Power of mobile terminal current service cell and adjacent cell;
Measurement reports unit, during for reaching default measurement reported event threshold value in Serving cell and adjacent cell Reference Signal Received Power difference, this event is added trigger event list; Course of event in described measurement event list certain time delay still meet preset measure report condition time, these events are added reported event list, event in reported event list sorted according to described Reference Signal Received Power, the event in report list is to target BS;
First acquiring unit, for obtaining the handoff parameter configuration messages of current service cell;
Second acquisition unit, for obtaining the handoff parameter configuration messages that the rear MSE unit of motion state change regenerates;
Receiving element, for receiving switching command, carries the cell ID of Target cell in described switching command;
Switch unit, for being switched to described Target cell according to described switching command;
First updating block, for after described handover success, upgrades the handoff parameter configuration of mobile terminal according to the Target cell handoff parameter configuration messages obtained;
Second updating block, for after described motion state changes, according to the handoff parameter configuration of the handoff parameter configuration messages renewal mobile terminal that MSE regenerates;
Described base station controller comprises:
Measurement result receiving element, for the measurement result of mobile terminal receive, carries the cell ID meeting preset switching condition in described measurement result;
Switching command transmitting element, for when judging that mobile terminal meets preset switching condition, issues switching command to mobile terminal, carries the cell ID of Target cell in described switching command;
Base station side mobile status estimation module, for estimating the motion state of mobile terminal;
Handoff parameter configuration distributing unit, for the handoff parameter configuration of the initialization mobile terminal when mobile terminal access base station; Configure to mobile terminal for re-issuing handoff parameter after the configuration of MSE unit renewal handoff parameter.
8. a kind of mobile status based on switching type certain weights according to claim 7 estimates intensifier, it is characterized in that: described mobile status estimation module, comprising:
Mobile terminal switches record cell, and for adding up in the MSE sliding window time, under connection status, the history of mobile terminal switches weights;
Motion state of mobile terminal estimation unit, according to switching weights accumulation result to motion state of mobile terminal mapping table, estimate the motion state that mobile terminal is up-to-date, described motion state comprises high speed, middling speed and normal speed;
Handover configurations information generating unit, for when motion state of mobile terminal changes, generates base station side handoff parameter configuration information.
9. a kind of mobile status based on switching type certain weights according to claim 7 estimates intensifier, it is characterized in that: described mobile terminal switch unit comprises:
First enquiry module, for inquiry specific switching weights mapping table from motion state of mobile terminal to motion state, obtains the switching type weight table corresponding with current motion state;
First determination module, is used for inquiring about the inquiry table of switching type specific weight values for described switching type weight table being defined as the second enquiry module;
Second enquiry module, for inquiry from switching type to switching type specific weight values mapping table, obtains the MSE consistent with current switching type and records weights;
Second determination module, switches the sum weight of record for described weights being defined as MSE;
Described mobile terminal switches record cell and also comprises:
First computing unit, within the MSE sliding window time, after mobile terminal receives switching command, successful synchronization is to Target cell, and base station side MSE unit carries out weights based on switching type and adds up;
Second computing unit, within the MSE sliding window time, after mobile terminal receives switching command, the term of execution of switching, Target cell CQI is lower than threshold value, mobile terminal handoff failure, and base station side MSE unit carries out weights based on switching type and adds up;
3rd computing unit, within the MSE sliding window time, when cell-of-origin issues switching command, the wireless link of mobile terminal and cell-of-origin is in desynchronizing state, mobile terminal handoff failure, and base station side MSE unit carries out weights based on switching type and adds up.
10. a kind of mobile status based on switching type certain weights according to claim 7 estimates intensifier, it is characterized in that: described motion state of mobile terminal estimation unit comprises:
3rd enquiry module, for inquiring about MSE weights accumulation result to motion state of mobile terminal mapping table, obtains corresponding motion state of mobile terminal;
3rd determination module, for being defined as current mobile terminal motion state by described motion state;
Described handover configurations information generating unit comprises:
4th enquiry module, for inquiring about the mapping table between motion state to handoff parameter configuration, obtains the handoff parameter configuration information corresponding with motion state;
4th determination module, for being defined as the handoff parameter configuration of current mobile terminal to be handed down to by described handoff parameter.
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