CN103517352A - Cell switch control method, cell switch method, device and system - Google Patents
Cell switch control method, cell switch method, device and system Download PDFInfo
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Abstract
The embodiment of the invention discloses a cell switch control method, a cell switch method, device and system. The method comprises the steps that after the message transmitted by a mobile terminal and used for indicating that the signal quality of a current cell cannot meet preset requirement is received, the measuring control message is transmitted to the mobile terminal, the measuring control message comprises the measuring control parameters of the adjacent communities with the same frequency as the current cell, and the measuring control parameters can meet the cell switch condition more easily than preset measuring control parameters; the measuring report submitted by the mobile terminal after the mobile terminal conducts cell measurement according to the measuring control message is received, and cell switch control is conducted on the mobile terminal according to the measuring report. According to the cell switch control method, cell switch method, device and system, due to the fact that the measuring control parameters of the adjacent communities with the same frequency of the current cell are issued in advance, the switching condition of the adjacent communities with the same frequency is reduced, so that more adjacent communities of the same frequency can be the selective object of a target cell, the selecting range is enlarged to optimize the cell switch, and unnecessary switch is reduced.
Description
Technical field
The embodiment of the present invention relates to wireless communication technology, relates in particular to a kind of cell switching control method, cell switching method and device and system.
Background technology
A characteristic of microcellulor network is to allow mobile terminal Cong Yige community seamlessly switch to another community, and switch community a variety of classification, for example, comprise soft handover, More Soft Handoff, direct-cut operation etc.Switch community is that the mode of assisting by mobile terminal is carried out mostly, and network equipment switches according to the measurement report select target community of mobile terminal reporting.Due to demands such as business demand and operator's dilatations, it is more and more general that the mixing of multisystem multiband community is arranged net, and how to guarantee that mobile terminal can carry out the important topic that seamless switching becomes research in these minizones at present.
Usually, the strategy of operator is to allow mobile terminal reside in can provide higher quality of service system or frequency range, and just this mobile terminal is switched to other system or frequency range while only having coverage condition when this system or frequency range that the service quality that this mobile terminal requires can not be provided.
In realizing the process of the embodiment of the present invention, inventor finds owing to controlling parameter with the measurement of switching condition frequently, to arrange unreasonable in prior art, cause some in fact can provide for mobile terminal the co-frequency cell of wireless service, be not moved terminal to report to network side, therefore network side is not included in the range of choice of switching, thereby causes the generation of unnecessary switching.
Summary of the invention
The embodiment of the present invention provides a kind of cell switching control method, cell switching method and device and system.
The embodiment of the present invention provides a kind of cell switching control method on the one hand, comprising:
Receive that mobile terminal sends for showing that the signal quality of current area can not meet after the message of pre-provisioning request, to described mobile terminal, send and measure control message, described measurement control message comprises the measurement control parameter of the homogeneous-frequency adjacent-domain of described current area, described measurement is controlled parameter and is more easily met community switching condition than preset measurement control parameter, described preset measurement is controlled parameter for sending at described mobile terminal for before showing that the signal quality of current area can not meet the message of pre-provisioning request, by described mobile terminal, is received;
Receive described mobile terminal and carry out according to described measurement control message the measurement report reporting after cell measurement, and according to described measurement report, described mobile terminal is carried out to community switching controls.
The embodiment of the present invention provides a kind of cell switching method on the other hand, comprising:
Xiang base station sends for showing that the signal quality of current area can not meet after the message of pre-provisioning request, receive the measurement control message that described base station sends, described measurement control message comprises the measurement control parameter of the homogeneous-frequency adjacent-domain of described current area, described measurement is controlled parameter and is more easily met community switching condition than preset measurement control parameter, described preset measurement is controlled parameter for sending at described mobile terminal for before showing that the signal quality of current area can not meet the message of pre-provisioning request, by described mobile terminal, is received;
According to described measurement control message, carry out cell measurement, and the measurement report of described cell measurement is reported to described base station;
To Target cell, switch, described Target cell for described base station definite according to described measurement report.
The community switching control that the embodiment of the present invention provides, comprising:
The first processing module, for receive that mobile terminal sends for showing that the signal quality of current area can not meet after the message of pre-provisioning request, to described mobile terminal, send and measure control message, described measurement control message comprises the measurement control parameter of the homogeneous-frequency adjacent-domain of described current area, described measurement is controlled parameter and is more easily met community switching condition than preset measurement control parameter, described preset measurement is controlled parameter for sending at described mobile terminal for before showing that the signal quality of current area can not meet the message of pre-provisioning request, by described mobile terminal, received,
The second processing module, carries out according to described measurement control message the measurement report that cell measurement reports for receiving described mobile terminal;
The 3rd processing module, for carrying out community switching controls according to described measurement report to described mobile terminal.
The mobile terminal that the embodiment of the present invention provides, comprising:
The 4th processing module, for Xiang base station, send for showing that the signal quality of current area can not meet after the message of pre-provisioning request, receive the measurement control message that described base station sends, described measurement control message comprises the measurement control parameter of the homogeneous-frequency adjacent-domain of described current area, described measurement is controlled parameter and is more easily met community switching condition than preset measurement control parameter, described preset measurement is controlled parameter for sending at described mobile terminal for before showing that the signal quality of current area can not meet the message of pre-provisioning request, by described mobile terminal, received,
The 5th processing module, for carrying out cell measurement according to described measurement control message, and reports described base station by the measurement report of described cell measurement;
The 6th processing module, for switching to Target cell, described Target cell for described base station definite according to described measurement report.
The community switched system that the embodiment of the present invention provides, comprises above-mentioned community switching control and mobile terminal, described community switching control and described mobile terminal wireless connections.
The cell switching control method that the embodiment of the present invention provides, cell switching method and device and system, before mobile terminal reporting is used for carrying out the cell measurement results of switch decision, the mode of parameter is controlled in the measurement that issues in advance the homogeneous-frequency adjacent-domain of current area, reduce the switching condition of homogeneous-frequency adjacent-domain, make more homogeneous-frequency adjacent-domain can become the alternative of Target cell, expand range of choice and optimize community switching, reduce unnecessary switching.
Accompanying drawing explanation
Schematic diagram is switched in Tu1Wei community;
Fig. 2 is the schematic flow sheet of cell switching control method embodiment of the present invention;
Fig. 3 is cell switching method embodiment schematic flow sheet of the present invention;
Fig. 4 is the signalling diagram of handover optimization embodiment of the present invention;
Fig. 5 is community of the present invention switching control example structure schematic diagram;
Fig. 6 is mobile terminal example structure schematic diagram of the present invention;
Fig. 7 is community of the present invention switched system example structure schematic diagram.
Embodiment
The characteristic of microcellulor network is can allow mobile terminal Cong Yuan community seamlessly switch to community, ，Qi Central Plains, Target cell and Target cell can be homogeneous-frequency adjacent-domain, can certainly be different frequency/different system adjacent area.As shown in Figure 1, mobile terminal moves to Long Term Evolution (long term evolution; Hereinafter to be referred as the LTE) edge of community A, the condition of supposing community A intra-system handover be homogeneous-frequency adjacent-domain than high 3 decibels of current area level (dB), and mobile terminal does not detect the homogeneous-frequency adjacent-domain that meets this switching condition always; By the time level drops to after certain thresholding, for what guarantee business, be normally necessary to trigger different frequency/different system measurement, mobile terminal carries out different frequency/different system nearby region measurement according to the measurement indication of base station, and different frequency/different system adjacent area covers better, mobile terminal measures the community that meets switching condition different frequency/different system very soon, and carries out community switching.
Owing to controlling parameter with the frequently measurement of switching condition in prior art, arrange unreasonablely, cause the generation of some unnecessary switchings.Various embodiments of the present invention are in order to reduce unnecessary switching, provide a solution at mobile terminal reporting for before carrying out the cell measurement results of switch decision, by issuing in advance the measurement of the homogeneous-frequency adjacent-domain of current area, control the mode of parameter, reduce the switching condition of homogeneous-frequency adjacent-domain, make more homogeneous-frequency adjacent-domain can become the alternative of Target cell, expand range of choice and optimize community switching.
Fig. 2 is the schematic flow sheet of cell switching control method embodiment of the present invention, and as shown in Figure 2, the method comprises the steps:
Mobile terminal resides in current area to carry out in the process of wireless traffic, mobility due to mobile terminal, it may progressively move to the marginal position of current area, now due to the limited coverage area of current area, signal strength signal intensity at its marginal position place can lower, therefore can cause the signal quality of current area can not meet pre-provisioning request, need to carry out the peripheral cell to measure the mode request of the base station reporting measurement reports of ，Yi Xiang current area and carry out community switching.
Mobile terminal is known in the process that current area signal quality reduces in detection, can constantly to the homogeneous-frequency adjacent-domain of current area, carry out cell measurement, by the information reporting of homogeneous-frequency adjacent-domain of switching condition that meets homogeneous-frequency adjacent-domain to base station.The switching condition of homogeneous-frequency adjacent-domain described herein is that mobile terminal is handed down in base station before this step, and for example the switching condition of homogeneous-frequency adjacent-domain is event A3(Event A3) thresholding is 3dB, the triggered time, (Time to Trigger, TTT) was 320ms.If mobile terminal detects behind the homogeneous-frequency adjacent-domain that meets above-mentioned default switching condition, report base station, just base station can be switched to mobile terminal on this homogeneous-frequency adjacent-domain.If base station does not receive the measurement report of mobile terminal reporting, show that the periphery of current area does not have to meet the homogeneous-frequency adjacent-domain of above-mentioned switching condition, therefore in the embodiment of the present invention when receive mobile terminal transmission for showing that the signal quality of current area can not meet after the message of pre-provisioning request, just carry out immediately handover optimization, specifically to mobile terminal, send and measure control message, allow mobile terminal carry out cell measurement according to the indication of this measurement control message.
In the embodiment of the present invention, measure the measurement control parameter that control message comprises the homogeneous-frequency adjacent-domain of current area, this measurement is controlled parameter and is comprised triggered time TTT, and with frequency handoff threshold, and described measurement control parameter more easily meets community switching condition than preset measurement control parameter; Described preset measurement is controlled parameter for sending at described mobile terminal for before showing that the signal quality of current area can not meet the message of pre-provisioning request, by described mobile terminal, received, that is to say that switching condition corresponding to this measurement control parameter (also can be called: the switching condition of predetermined homogeneous-frequency adjacent-domain) more easily meet switching condition than preset switching condition corresponding to measurement control parameter.Owing to not detecting according to the switching condition of before default homogeneous-frequency adjacent-domain the homogeneous-frequency adjacent-domain satisfying condition, in order to carry out handover optimization, parameter is controlled in the measurement that issues the homogeneous-frequency adjacent-domain of the current area resetting in the embodiment of the present invention, and the measurement re-issuing control parameter more easily meets community switching condition than preset measurement control parameter, object is the detection range that increases homogeneous-frequency adjacent-domain, makes the homogeneous-frequency adjacent-domain of switching condition default before can not meeting can meet the lower switching condition resetting.Give an example, described same frequency handoff threshold can be for meeting in agreement 3GPP TS 36.331 thresholding of the measurement event of definition, such as the thresholding of A3 event etc.For instance, the switching condition of default homogeneous-frequency adjacent-domain is that A3 event thresholding is 3dB before, and TTT is 320ms, and the A3 event thresholding comprising in the measurement control message of this configuration is 2dB, and TTT is 160ms.Because switching condition has reduced, more homogeneous-frequency adjacent-domain will become the alternative of Target cell, has more been conducive to community and has switched.
Base station is after mobile terminal sending measuring control message, and mobile terminal is controlled parameter by the measurement of the homogeneous-frequency adjacent-domain of basis current area wherein and continued homogeneous-frequency adjacent-domain to carry out cell measurement, obtains measurement report, and this measurement report is reported to base station.Base station is after receiving this measurement report, just can to this mobile terminal, carry out according to the content of measurement report the control of community switching, be mobile terminal and select applicable community as Target cell, and control mobile terminal and be switched on this Target cell, complete community and switch.
The cell switching control method that the embodiment of the present invention provides, before mobile terminal reporting is used for carrying out the cell measurement results of switch decision, the mode of parameter is controlled in the measurement that issues in advance the homogeneous-frequency adjacent-domain of current area, reduce the switching condition of homogeneous-frequency adjacent-domain, make more homogeneous-frequency adjacent-domain can become the alternative of Target cell, expand range of choice and optimize community switching, reduced unnecessary but changing.
In the above-described embodiments, when mobile terminal can't detect behind the homogeneous-frequency adjacent-domain satisfying condition according to the switching condition of default before homogeneous-frequency adjacent-domain, can trigger different frequency/different system measurement, base station will send the measurement control parameter of different frequency/different system adjacent area to mobile terminal, mobile terminal controls according to the measurement of this different frequency/different system adjacent area the cell measurement that parameter is carried out different frequency/different system.The measurement of the homogeneous-frequency adjacent-domain of the current area that therefore in said method embodiment, base station issues to mobile terminal is controlled parameter and both can be sent to separately mobile terminal, also can preferably control parameter with the measurement of different frequency/different system adjacent area and together be handed down to mobile terminal, be that base station sends to the measurement of the homogeneous-frequency adjacent-domain that had both comprised current area in the measurement control message of mobile terminal to control parameter, also comprise that parameter is controlled in the measurement of different frequency/different system adjacent area.Accordingly, mobile terminal receives after this measurement control message, when carrying out cell measurement, should measure homogeneous-frequency adjacent-domain, again different frequency/different system adjacent area is measured.Particularly, parameter is controlled in the measurement of different frequency/different system adjacent area can comprise that measurement clearance (GAP), the measurement frequency of measuring different frequency/different system adjacent area are the frequency point information of different frequency/different system adjacent area, also comprises the threshold value that meets different frequency/different system switching condition.
The step that said method embodiment Zhong， base station is carried out community switching controls according to the measurement report of mobile terminal to this mobile terminal specifically can comprise following several situation:
The first situation: Jin You homogeneous-frequency adjacent-domain satisfies condition, particularly: if only comprise the cell measurement information of Yi Ge homogeneous-frequency adjacent-domain in measurement report, mobile terminal is switched to this homogeneous-frequency adjacent-domain; If measurement report comprises the cell measurement information of a plurality of homogeneous-frequency adjacent-domains, mobile terminal is switched to the best homogeneous-frequency adjacent-domain of signal quality.
The second situation: only have different frequency/different system adjacent area to satisfy condition, particularly: if only comprise the cell measurement information of a different frequency/different system adjacent area in measurement report, mobile terminal is switched to this different frequency/different system adjacent area; If measurement report comprises the cell measurement information of a plurality of different frequency/different systems adjacent area, mobile terminal is switched to the best different frequency/different system adjacent area of signal quality.
The third situation: existing homogeneous-frequency adjacent-domain satisfies condition, there is again different frequency/different system adjacent area to satisfy condition, particularly: if both comprised the cell measurement information of homogeneous-frequency adjacent-domain in measurement report, the cell measurement information that also comprises different frequency/different system adjacent area, according to preset rules, for mobile terminal is selected the Target cell of switching for community.Described preset rules can, for using the best homogeneous-frequency adjacent-domain of signal quality as Target cell, preferentially select homogeneous-frequency adjacent-domain as alternative; Or, can also Wei Jiang homogeneous-frequency adjacent-domain and different frequency/different system adjacent area in signal quality best as Target cell, be about to all adjacent areas that can meet switching condition all as alternative.
The inventive method embodiment, by reducing the processing mode of the switching condition of homogeneous-frequency adjacent-domain, not only can optimize switching, but also can be by expanding mobile terminal cell measurement scope, and the autotelic information of obtaining Target cell, for other purposes.
Fig. 3 is cell switching method embodiment schematic flow sheet of the present invention, and as shown in Figure 3, the method comprises the steps:
In embodiment of the method as shown in Figure 2, mobile terminal detection knows that the signal quality of current area can not meet reservation and require Hou，Xiang base station to send a notification message.Base station is to mobile terminal sending measuring control message, and parameter is controlled in this measurement of measuring in control message homogeneous-frequency adjacent-domain that can current area, also can comprise that parameter is controlled in the measurement of different frequency/different system adjacent area.As mentioned above, the measurement control parameter that parameter and different frequency/different system adjacent area are controlled in the measurement of homogeneous-frequency adjacent-domain can issue separately, also can be included in the lump to measure in control message to issue.Described measurement is controlled parameter and is more easily met community switching condition than preset measurement control parameter, described preset measurement is controlled parameter for sending at described mobile terminal for before showing that the signal quality of current area can not meet the message of pre-provisioning request, by described mobile terminal, received, make more homogeneous-frequency adjacent-domain more easily meet switching condition.Parameter is controlled in the measurement of homogeneous-frequency adjacent-domain can comprise measurement triggering time T TT and same handoff threshold frequently.
Mobile terminal carries out cell measurement according to measuring control message, measures the measurement of the homogeneous-frequency adjacent-domain that only comprises current area in control message control parameter if specifically comprise, mobile terminal only carries out the measurement of homogeneous-frequency adjacent-domain; If both comprised the measurement of the homogeneous-frequency adjacent-domain of current area in measurement control message, controlled parameter, parameter is controlled in the measurement that also comprises different frequency/different system adjacent area, mobile terminal should be measured homogeneous-frequency adjacent-domain when carrying out cell measurement, again different frequency/different system adjacent area is measured.Particularly, parameter is controlled in the measurement of different frequency/different system adjacent area can comprise that measurement clearance (GAP), the measurement frequency of measuring different frequency/different system adjacent area are the frequency point information of different frequency/different system adjacent area, also comprises the threshold value that meets different frequency/different system switching condition.
Base station is according to the measurement report select target community of mobile terminal reporting, and controls mobile terminal and carry out community switching flow.Mobile terminal switches in the control Xia Xiang Target cell of base station.Wherein, the flow process that the community switching flow of mobile terminal is prior art repeats no more herein.The process of base station selected Target cell can, referring to said method embodiment, also repeat no more herein.
In the cell switching method that the embodiment of the present invention provides, parameter is controlled in the measurement of the homogeneous-frequency adjacent-domain of the current area that mobile terminal resets according to base station, make more homogeneous-frequency adjacent-domain can become the alternative of Target cell, expand range of choice and optimize community switching, reduced unnecessary switching.
Fig. 4 is the signalling diagram of handover optimization embodiment of the present invention, and as shown in Figure 4, the method comprises the steps:
Step 301, mobile terminal UE are to base station eNB reporting measurement event, and this event shows that the signal quality of current area does not meet predetermined requirement;
The signal quality of mobile terminal UE detection current area knows that can not meet pre-provisioning request Hou，Xiang base station sends a notification message.Inventing the base station relating in each example can be the eNB(evolved NodeB in LTE), or universal mobile telecommunications system (universal mobile telecommunications service; Be called for short: (the radio node controller of the radio network controller UMTS); Be called for short: RNC), or global system for mobile communications (global system for mobile; Be called for short: (the base station controller of the base station controller GSM); Be called for short: BSC) etc.
The measurement event that UE reports, can be the Reference Signal Received Power (RSRP, reference signal received power) in LTE, (the received signal code power of the received signal code power in UMTS; Be called for short: RSCP), the receiving level strength in GSM (Rxlev, received signal level); Also can be signal quality, as the Reference Signal Received Quality (RSRQ in LTE, reference signal received quality), signal to noise ratio (Ec/N0 in UMTS, Ratio of energy per modulating bit to the noise spectral density), incoming level quality in GSM (RxQual, received signal quality).The judgement cell signal quality of mentioning in the embodiment of the present invention, can characterize by above-mentioned each parameter, or parameter that also can reflected signal quality by other characterizes.
Described pre-provisioning request can be configured by signaling message in advance by the current serving BS of UE.
Step 302, eNB sending measuring control message, wherein comprise the measurement configuration for different frequency/different system, and control parameter to the measurement of homogeneous-frequency adjacent-domain;
Wherein, condition threshold value that need to be satisfied containing measurement clearance (GAP) configuration, frequency point information and different frequency/different system cell for the measurement configuration packet of different frequency/different system.Base station issues the measurement control message for homogeneous-frequency adjacent-domain, for example, it is that TTT equals 320ms that parameter is controlled in the measurement of the homogeneous-frequency adjacent-domain of initial configuration, A3 thresholding is 3dB, and configuration in the common frequency measurement control message now issuing with the measurement configuration of different frequency/different system can equal 160ms for TTT simultaneously, A3 thresholding is 2dB, and this parameter is controlled parameter than preset measurement and more easily met community switching condition, can be so that homogeneous-frequency adjacent-domain more easily satisfies condition.
Step 303, UE control parameter according to the measurement receiving and carry out measurement of correlation, and reporting measurement reports;
Here there are three kinds of scenes:
Case1: only have homogeneous-frequency adjacent-domain to satisfy condition;
Case2: existing homogeneous-frequency adjacent-domain also has alien frequencies or different system adjacent area to satisfy condition;
Case3: only have alien frequencies or different system adjacent area to satisfy condition.
Step 304, eNB carry out switch decision according to the measurement report of UE;
The different measuring report reporting according to UE, eNB can correspondingly carry out switch decision:
Case1: if UE only reports the cell measurement information of Liao Yige homogeneous-frequency adjacent-domain, carry out with frequently switching as switching target small area ZeeNBJiang Gai homogeneous-frequency adjacent-domain; If UE has reported the cell measurement information of a plurality of homogeneous-frequency adjacent-domains, eNB can select RSRP or the best community of RSRQ to carry out with frequently switching as switching target small area.
Case2: if UE has reported the cell measurement information of homogeneous-frequency adjacent-domain and the cell measurement information of alien frequencies adjacent area simultaneously, or the cell measurement information of the cell measurement information of homogeneous-frequency adjacent-domain and different system adjacent area, in the measurement report that eNB reports according to UE, whether the signal quality of the signal quality of homogeneous-frequency adjacent-domain and different frequency/different system adjacent area is adjudicated and is carried out with frequently switching, or carries out the different system switching of alien frequencies.For example, if the signal receiving strength of alien frequencies or different system adjacent area or signal receiving quality are than the high 3dB that surpasses of the threshold value of setting, illustrate that the signal quality of alien frequencies or different system is fine, still carry out alien frequencies or different system and switch.
Case3: if UE has only reported the cell measurement information of an alien frequencies or different system adjacent area, eNB initiates to switch to this alien frequencies or different system adjacent area; If UE has reported the cell measurement information of a plurality of alien frequencies or different system adjacent area, eNB can select the signal receiving strength of alien frequencies or different system adjacent area or the best community of signal receiving quality to carry out alien frequencies or the switching of different system as switching target small area.
The community switching optimization method that the embodiment of the present invention provides, before mobile terminal reporting is used for carrying out the cell measurement results of different frequency/different system switch decision, the mode of parameter is controlled in the measurement that issues in advance the homogeneous-frequency adjacent-domain of current area, reduce the switching condition of homogeneous-frequency adjacent-domain, make more homogeneous-frequency adjacent-domain can become the alternative of Target cell, expand range of choice and optimize community switching, reduced unnecessary switching.
One of ordinary skill in the art will appreciate that: all or part of step that realizes above-mentioned each embodiment of the method can complete by the relevant hardware of program command.Aforesaid program can be stored in a computer read/write memory medium.This program, when carrying out, is carried out the step that comprises above-mentioned each embodiment of the method; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.
Fig. 5 is community of the present invention switching control example structure schematic diagram, as shown in Figure 5, this community switching control comprises the first processing module 11, the second processing module 12 and the 3rd processing module 13, wherein, the first processing module 11 for receive that mobile terminal sends for showing that the signal quality of current area can not meet after the message of pre-provisioning request, to mobile terminal, send and measure control message, described measurement control message comprises the measurement control parameter of the homogeneous-frequency adjacent-domain of described current area, described measurement is controlled parameter and is more easily met community switching condition than preset measurement control parameter, described preset measurement is controlled parameter for sending at described mobile terminal for before showing that the signal quality of current area can not meet the message of pre-provisioning request, by described mobile terminal, received, the second processing module 12 carries out according to measuring control message the measurement report that cell measurement reports for mobile terminal receive, the 3rd processing module 13 is for carrying out community switching controls according to measurement report to mobile terminal.
Particularly, the first processing module 11 mobile terminal receives of base station send for showing that the signal quality of current area can not meet after the message of pre-provisioning request, can carry out immediately handover optimization, specifically to mobile terminal, send and measure control message, allow mobile terminal carry out cell measurement according to the indication of this measurement control message.In the embodiment of the present invention, measure the measurement control parameter that control message comprises the homogeneous-frequency adjacent-domain of current area, this measurement is controlled parameter and is comprised triggered time and same handoff threshold frequently, and described measurement control parameter more easily meets community switching condition than preset measurement control parameter, it is lower than the switching condition of predetermined homogeneous-frequency adjacent-domain that switching condition corresponding to parameter controlled in i.e. this measurement, object is the detection range that increases homogeneous-frequency adjacent-domain, makes the homogeneous-frequency adjacent-domain of switching condition default before can not meeting can meet the lower switching condition resetting.The first processing module 11 is after mobile terminal sending measuring control message, mobile terminal is controlled parameter by the measurement of the homogeneous-frequency adjacent-domain of basis current area wherein and is continued homogeneous-frequency adjacent-domain to carry out cell measurement, obtain measurement report, and this measurement report is reported to base station.The second processing module 12 that base station is crossed is after receiving this measurement report, by the 3rd processing module 13, according to the content of measurement report, this mobile terminal is carried out the control of community switching, being mobile terminal selects applicable community as Target cell, and control mobile terminal and be switched on this Target cell, complete community and switch.
In above-mentioned community switching control embodiment, the 3rd processing module comprises any one or its combination in the first processing unit, the second processing unit, the 3rd processing unit, fourth processing unit and the 5th processing unit, to adapt to, processes the different content that measurement report comprises.Particularly, the first processing unit, if only comprise the cell measurement information of Yi Ge homogeneous-frequency adjacent-domain for described measurement report, is switched to described mobile terminal described Yi Ge homogeneous-frequency adjacent-domain; The second processing unit, if comprise the cell measurement information of a plurality of homogeneous-frequency adjacent-domains for described measurement report, is switched to described mobile terminal the best homogeneous-frequency adjacent-domain of signal quality; The 3rd processing unit, if only comprise the cell measurement information of a different frequency/different system adjacent area for described measurement report, is switched to described mobile terminal described different frequency/different system adjacent area; Fourth processing unit, if comprise the cell measurement information of a plurality of different frequency/different systems adjacent area for described measurement report, is switched to described mobile terminal the best different frequency/different system adjacent area of signal quality; The 5th processing unit, if both comprised the cell measurement information of homogeneous-frequency adjacent-domain for described measurement report, also comprises the cell measurement information of different frequency/different system adjacent area, according to preset rules, for described mobile terminal is selected the Target cell of switching for community.Wherein, described preset rules comprises using the best homogeneous-frequency adjacent-domain of signal quality as described Target cell, or using signal quality in described homogeneous-frequency adjacent-domain and different frequency/different system adjacent area best as described in Target cell.
The community switching control that various embodiments of the present invention provide, before mobile terminal reporting is used for carrying out the cell measurement results of switch decision, the mode of parameter is controlled in the measurement that issues in advance the homogeneous-frequency adjacent-domain of current area, reduce the switching condition of homogeneous-frequency adjacent-domain, make more homogeneous-frequency adjacent-domain can become the alternative of Target cell, expand range of choice and optimize community switching, reduced unnecessary switching.
In the community switching control that various embodiments of the present invention provide, the function of each functional module can, referring to above-mentioned each embodiment of the method, repeat no more herein.
Fig. 6 is mobile terminal example structure schematic diagram of the present invention, as shown in Figure 6, this mobile terminal comprises the 4th processing module 21, the 5th processing module 22 and the 6th processing module 23, wherein, the 4th processing module 21 sends for showing that the signal quality of current area can not meet after the message of pre-provisioning request for Xiang base station, receive the measurement control message that described base station sends, described measurement control message comprises the measurement control parameter of the homogeneous-frequency adjacent-domain of described current area, described measurement is controlled parameter and is more easily met community switching condition than preset measurement control parameter, described preset measurement is controlled parameter for sending at described mobile terminal for before showing that the signal quality of current area can not meet the message of pre-provisioning request, by described mobile terminal, received, the 5th processing module 22 is for carrying out cell measurement according to described measurement control message, and measurement report is reported to described base station, the 6th processing module 23 is for switching to Target cell, described Target cell for described base station definite according to described measurement report.
Particularly, mobile terminal detection knows that the signal quality of current area can not meet reservation and require Hou，Xiang base station to send a notification message.Base station is to mobile terminal sending measuring control message, parameter is controlled in this measurement of measuring in control message homogeneous-frequency adjacent-domain that can current area, parameter is controlled in the measurement that also can comprise different frequency/different system adjacent area, wherein to control switching condition corresponding to parameter lower than the switching condition of predetermined homogeneous-frequency adjacent-domain in the measurement of homogeneous-frequency adjacent-domain, makes more homogeneous-frequency adjacent-domain more easily meet switching condition.Parameter is controlled in the measurement of homogeneous-frequency adjacent-domain can comprise TTT, and affair thresholding.The 4th processing module 21 receives to be measured after control message, the 5th processing module 22 is carried out cell measurement according to measuring control message, if specifically comprise, measure the measurement of the homogeneous-frequency adjacent-domain that only comprises current area in control message and control parameter, mobile terminal only carries out the measurement of homogeneous-frequency adjacent-domain; If both comprised the measurement of the homogeneous-frequency adjacent-domain of current area in measurement control message, controlled parameter, parameter is controlled in the measurement that also comprises different frequency/different system adjacent area, mobile terminal should be measured homogeneous-frequency adjacent-domain when carrying out cell measurement, again different frequency/different system adjacent area is measured.Particularly, parameter is controlled in the measurement of different frequency/different system adjacent area can comprise that measurement clearance (GAP), the measurement frequency of measuring different frequency/different system adjacent area are the frequency point information of different frequency/different system adjacent area, also comprises the threshold value that meets different frequency/different system switching condition.The Target cell of switching for community is selected in base station according to the measurement report of mobile terminal reporting, and controls mobile terminal and carry out community switching flow.Mobile terminal switches in the control Xia Xiang Target cell of base station, and the 6th processing module 23 in mobile terminal is carried out the flow process of switching to Target cell.
The mobile terminal that the embodiment of the present invention provides, parameter is controlled in the measurement of the homogeneous-frequency adjacent-domain of the current area resetting according to base station, make more homogeneous-frequency adjacent-domain can become the alternative of Target cell, expand range of choice and optimize community switching, reduced unnecessary switching.
Fig. 7 is community of the present invention switched system example structure schematic diagram, as shown in Figure 7, this community switched system comprises community switching control 1 and the mobile terminal 2 of wireless connections, wherein, mobile terminal 2 is reduced to and need to carries out community while switching at the signal quality that current area detected, to community switching control 1, send a notification message, community switching control 1 carries out handover optimization, specifically to measuring control message, parameter is controlled in the measurement that can comprise the homogeneous-frequency adjacent-domain of current area in this measurement control message, parameter is controlled in the measurement that also can comprise different frequency/different system adjacent area, wherein, described measurement control message comprises the measurement control parameter of the homogeneous-frequency adjacent-domain of described current area, described measurement is controlled parameter and is more easily met community switching condition than preset measurement control parameter, it is lower than the switching condition of predetermined homogeneous-frequency adjacent-domain to be that switching condition corresponding to parameter controlled in the measurement of homogeneous-frequency adjacent-domain, to increase the detection range of homogeneous-frequency adjacent-domain, make the homogeneous-frequency adjacent-domain of switching condition default before can not meeting can meet the lower switching condition resetting.Described preset measurement is controlled parameter for sending at described mobile terminal for before showing that the signal quality of current area can not meet the message of pre-provisioning request, by described mobile terminal, is received.Mobile terminal 2 carries out cell measurement according to measuring control parameter, and reporting measurement reports, and community switching control 1 carries out community switching controls according to measurement report to mobile terminal 2.
The community switching control relating in the community switched system that the embodiment of the present invention provides and mobile terminal can adopt above-mentioned base station and the mobile terminal that embodiment provides that respectively install, and its concrete structure and function repeat no more herein.The switching optimization method that this system relates to can be participated in the flow process of above-mentioned each embodiment of the method, also repeats no more herein.
Finally it should be noted that: each embodiment, only in order to technical scheme of the present invention to be described, is not intended to limit above; Although the present invention is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (16)
1. a cell switching control method, is characterized in that, comprising:
Receive that mobile terminal sends for showing that the signal quality of current area can not meet after the message of pre-provisioning request, to described mobile terminal, send and measure control message, described measurement control message comprises the measurement control parameter of the homogeneous-frequency adjacent-domain of described current area, described measurement is controlled parameter and is more easily met community switching condition than preset measurement control parameter, described preset measurement control parameter at described mobile terminal, send for before showing that the signal quality of current area can not meet the message of pre-provisioning request, by described mobile terminal, received;
Receive described mobile terminal and carry out according to described measurement control message the measurement report reporting after cell measurement, and according to described measurement report, described mobile terminal is carried out to community switching controls.
2. according to described cell switching control method claimed in claim 1, it is characterized in that, in described measurement control message, also comprise that parameter is controlled in the measurement of different frequency/different system adjacent area.
3. according to the cell switching control method described in described claim 1 or 2, it is characterized in that, the measurement of described homogeneous-frequency adjacent-domain is controlled parameter and is comprised triggered time TTT, and with frequency handoff threshold.
4. according to described cell switching control method claimed in claim 2, it is characterized in that, the measurement control parameter of described different frequency/different system adjacent area comprises measures the measurement clearance of different frequency/different system adjacent area, the threshold value of measuring frequency and meeting switching condition.
5. according to described cell switching control method claimed in claim 1, it is characterized in that, describedly according to described measurement report, described mobile terminal carried out to community switching controls and comprise:
If only comprise the cell measurement information of Yi Ge homogeneous-frequency adjacent-domain in described measurement report, described mobile terminal is switched to described Yi Ge homogeneous-frequency adjacent-domain;
If described measurement report comprises the cell measurement information of a plurality of homogeneous-frequency adjacent-domains, described mobile terminal is switched to the best homogeneous-frequency adjacent-domain of signal quality.
6. according to the cell switching control method described in described claim 1 or 2, it is characterized in that, describedly according to described measurement report, described mobile terminal carried out to community switching controls and comprise:
If only comprise the cell measurement information of a different frequency/different system adjacent area in described measurement report, described mobile terminal is switched to described different frequency/different system adjacent area;
If described measurement report comprises the cell measurement information of a plurality of different frequency/different systems adjacent area, described mobile terminal is switched to the best different frequency/different system adjacent area of signal quality;
If both comprised the cell measurement information of homogeneous-frequency adjacent-domain in described measurement report, also comprise different frequency/different system neighboring BS information, according to preset rules, be described mobile terminal select target community.
7. according to described cell switching control method claimed in claim 6, it is characterized in that, described preset rules comprises using the best homogeneous-frequency adjacent-domain of signal quality as described Target cell, or using signal quality in described homogeneous-frequency adjacent-domain and different frequency/different system adjacent area best as described in Target cell.
8. a cell switching method, is characterized in that, comprising:
Xiang base station sends for showing that the signal quality of current area can not meet after the message of pre-provisioning request, receive the measurement control message that described base station sends, described measurement control message comprises the measurement control parameter of the homogeneous-frequency adjacent-domain of described current area, described measurement is controlled parameter and is more easily met community switching condition than preset measurement control parameter, described preset measurement is controlled parameter for sending at described mobile terminal for before showing that the signal quality of current area can not meet the message of pre-provisioning request, by described mobile terminal, is received;
According to described measurement control message, carry out cell measurement, and the measurement report of described cell measurement is reported to described base station;
To Target cell, switch, described Target cell for described base station definite according to described measurement report.
9. according to described cell switching method claimed in claim 8, it is characterized in that, in described measurement control message, also comprise that parameter is controlled in the measurement of different frequency/different system adjacent area.
10. according to the cell switching method described in described claim 8 or 9, it is characterized in that, the measurement of described homogeneous-frequency adjacent-domain is controlled parameter and is comprised triggered time TTT, and with frequency handoff threshold.
11.Yi Zhong community switching control, is characterized in that, comprising:
The first processing module, for receive that mobile terminal sends for showing that the signal quality of current area can not meet after the message of pre-provisioning request, to described mobile terminal, send and measure control message, described measurement control message comprises the measurement control parameter of the homogeneous-frequency adjacent-domain of described current area, described measurement is controlled parameter and is more easily met community switching condition than preset measurement control parameter, described preset measurement is controlled parameter for sending at described mobile terminal for before showing that the signal quality of current area can not meet the message of pre-provisioning request, by described mobile terminal, received,
The second processing module, carries out according to described measurement control message the measurement report that cell measurement reports for receiving described mobile terminal;
The 3rd processing module, for carrying out community switching controls according to described measurement report to described mobile terminal.
12. according to the community switching control described in described claim 11, it is characterized in that, described the 3rd processing module comprises the first processing unit and/or the second processing unit, wherein:
The first processing unit, if only comprise the cell measurement information of Yi Ge homogeneous-frequency adjacent-domain for described measurement report, is switched to described mobile terminal described Yi Ge homogeneous-frequency adjacent-domain;
The second processing unit, if comprise the cell measurement information of a plurality of homogeneous-frequency adjacent-domains for described measurement report, is switched to described mobile terminal the best homogeneous-frequency adjacent-domain of signal quality.
13. according to the community switching control described in described claim 11 or 12, it is characterized in that, described the 3rd processing module also comprises any one or its combination in the 3rd processing unit, fourth processing unit and the 5th processing unit, wherein:
The 3rd processing unit, if only comprise the cell measurement information of a different frequency/different system adjacent area for described measurement report, is switched to described mobile terminal described different frequency/different system adjacent area;
Fourth processing unit, if comprise the cell measurement information of a plurality of different frequency/different systems adjacent area for described measurement report, is switched to described mobile terminal the best different frequency/different system adjacent area of signal quality;
The 5th processing unit, if both comprised the cell measurement information of homogeneous-frequency adjacent-domain for described measurement report, also comprises the cell measurement information of different frequency/different system adjacent area, according to preset rules, is described mobile terminal select target community.
14. according to the community switching control described in described claim 13, it is characterized in that, described preset rules comprises using the best homogeneous-frequency adjacent-domain of signal quality as described Target cell, or using signal quality in described homogeneous-frequency adjacent-domain and different frequency/different system adjacent area best as described in Target cell.
15. 1 kinds of mobile terminals, is characterized in that, comprising:
The 4th processing module, for Xiang base station, send for showing that the signal quality of current area can not meet after the message of pre-provisioning request, receive the measurement control message that described base station sends, described measurement control message comprises the measurement control parameter of the homogeneous-frequency adjacent-domain of described current area, described measurement is controlled parameter and is more easily met community switching condition than preset measurement control parameter, described preset measurement is controlled parameter for sending at described mobile terminal for before showing that the signal quality of current area can not meet the message of pre-provisioning request, by described mobile terminal, received,
The 5th processing module, for carrying out cell measurement according to described measurement control message, and reports described base station by the measurement report of described cell measurement;
The 6th processing module, for switching to Target cell, described Target cell for described base station definite according to described measurement report.
16.Yi Zhong community switched system, is characterized in that, comprises the community switching control as described in as arbitrary in claim 11-14, and mobile terminal as claimed in claim 15, described community switching control and described mobile terminal wireless connections.
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| CN201210222858.3A CN103517352B (en) | 2012-06-30 | 2012-06-30 | Cell switching control method, cell switching method and device and system |
| PCT/CN2013/073166 WO2014000478A1 (en) | 2012-06-30 | 2013-03-26 | Cell handover control method, cell handover method, device and system |
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| WO2014000478A1 (en) | 2014-01-03 |
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