CN104244278A - Measurement control method of neighbor relation in same system and base station - Google Patents
Measurement control method of neighbor relation in same system and base station Download PDFInfo
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- CN104244278A CN104244278A CN201410498652.2A CN201410498652A CN104244278A CN 104244278 A CN104244278 A CN 104244278A CN 201410498652 A CN201410498652 A CN 201410498652A CN 104244278 A CN104244278 A CN 104244278A
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Abstract
The invention discloses a measurement control method of neighbor relation in the same system and a base station. The measurement control method includes allowing users to allocate ANR (automatic neighbor relation) control strategy according to conditions of network planning, namely allowing the users to select active ANR or passive ANR; during use of the active ANR, selecting an external frequency point with maximum weight which is larger than zero to do ANR measurement if a terminal has conditions of executing the ANR measurement; after receiving an ANR measurement report which is reported on the frequency point and sent from the terminal and contains the physical cell identity, adaptively updating the weight of the current frequency point according to whether a cell represented by a physical cell identity is known or not; if the reporting times of the ANR measurement report sent from the terminal exceeds a preset threshold value or an ANR measurement timer of the terminal is overtime, then recovering normal mobility measurement; if the reporting times of the ANR measurement report sent from the terminal does not exceed the preset threshold value or the ANR measurement timer of the terminal is not overtime, then waiting to receive the ANR measurement report sent from the terminal.
Description
Technical field
The present invention relates to wireless communication technology field, particularly relate to a kind of Survey control method and base station of homologous ray neighboring BS relationship.
Background technology
At present, it is cell merge and process neighboring BS relationship that public land mobile net network safeguards that the work costing manpower is most, this is operated in wireless network O&M process and carries out, and along with the deployment of wireless network long-term existence.But, increase along with switching the standard supported, such as support 2G/3G/4G, the workload of artificial treatment can exponentially increase, therefore, Automatic Neighboring Relation (Automatic Neighbor Relation is called for short ANR) is optimized in order to self-organizing self-optimizing network (Self-Organizing and Self-Optimization Network, be called for short SON) most important characteristic is also be typically canonicalized SON function the earliest.
When disposing new base station or community, ANR function can reduce the work of process cell neighboring relations, correctly realizes ANR function, can increase the probability of success of cell merge, reduces the call drop and hydraulic performance decline that cause because of neighboring BS relationship mistake.Long Term Evolution (Long Term Evolution is called for short LTE) technology has following two unique functions, makes ANR function become possibility:
(1) subscriber equipment (the User Equipment, in LTE technical system, be called for short UE) measure configuration do not need Neighboring Cell List, UE can detect the unknown adjacent area on corresponding frequency automatically, and it is enough fast to measure the speed reporting unknown cell, can prepare for cell merge.Like this, even if this unknown cell is the miss-configured neighboring cells of Serving cell, ANR function also ShiUEGai community can perform handover measurement.
(2), for the unknown cell detected, base station (eNodeB) can perform cell global identity (Cell Global Identity by control UE, be called for short CGI) measure, thus thoroughly identify this unknown cell, for use in setting up neighboring BS relationship.
ANR function in LTE technology wants energy Timeliness coverage and LTE community with other adjacent area covered, and in order to support this function, the community that agreement support allows LTE UE periodically report signal best, is embodied in LTE protocol, is specially:
(1), measure and report the support purpose of configuration to be: the period measurement of ReportStrongestCells (reporting Qiang community) and ReportStrongestCellsForSon (for SON reports Qiang community), measurement for this type of object configures, and UE can report the community detected.
(2), measure and report the support purpose of configuration to be: the period measurement of reportCGI (reporting CGI).
(3), support to transmit by S1 configuration the IP address that flow process (eNB/MME CONFIGURATION TRANSFER) obtains place, adjacent area eNodeB, so that the X2 automatically set up between base station connects.
Set up the schematic diagram of neighboring BS relationship in LTE standard shown in Figure 1, comprise the following steps:
(1), UE reports the nearby region measurement report comprising Physical Cell Identifier (Physical Cell Identity is called for short PCI) to the base station of community A, supposes PCI=5, represents adjacent cell B;
(2), community A inquire about its adjacent area table, find PCI=5 be unknown;
(3), community A reshuffles UE, to notify that UE reads the CGI of community B;
(4), UE reads CGI, and reports community A from the broadcast of community B, and community A finds that community B can be added as adjacent area, so increase and the neighboring BS relationship of community B, such UE just may be switched to community B from community A;
(5), the base station of community A checks whether that the X2 allowing to be established to base station, B place, community connects;
(6), the base station of community A is transmitted flow process by S1 configuration or is obtained the IP address of base station, B place, community from domain name system (Domain Name System is called for short DNS);
(7), the X2 set up by IP address between the base station of community A and the base station of community B is connected;
(8), the base station of community A sends cell status change information to operation maintenance center's (Operation and Maintenance Center is called for short OMC).
In addition, UE in the lte networks time, LTE community and other different system (such as GERAN/UTRAN) community set up neighboring BS relationship attribute flow process and above-mentioned flow process is similar, and difference is:
(1), for different different grids, cell ID is different.
(2), need not set up X2 between base station and connect, namely above process step (5) ~ (7) are non-existent for different system ANR.
But, for 4GLTE/LTE-A network, when the autonomous control terminal in base station carries out ANR measurement, if control strategy is improper, then may finds cause cell merge call drop not in time because of neighboring BS relationship, thus cause poor Consumer's Experience.
Summary of the invention
In view of this, the main purpose of the embodiment of the present invention is the Survey control method and the base station that provide a kind of homologous ray neighboring BS relationship, to realize the object of Timeliness coverage neighboring BS relationship.
For achieving the above object, embodiments provide a kind of Survey control method of homologous ray neighboring BS relationship, comprising:
If terminal equipment and base station are in radio resource control RRC connected state, and described terminal equipment has condition homologous ray being performed to Automatic Neighboring Relation ANR measurement, then the first frequency of base station selected described terminal equipment support, physical end quantity for carrying out described ANR measurement on described first frequency is less than the terminal quantity of current expectation, described homologous ray is the network system of described terminal equipment access, and the network system of described terminal equipment access is LTE standard;
For the metering system that described terminal equipment selects described ANR to measure, and initiate a RRC connection reconfiguration course according to described metering system, think that described terminal equipment configuration carries out the Radio Resource needed for described ANR measurement on described first frequency;
When receive that described terminal equipment reports on described first frequency comprise the ANR measurement report of Physical Cell Identifier PCI after, the whether known terminal quantity upgrading described current expectation in the community representated by described PCI;
If the ANR measurement report number of times that described terminal equipment reports exceedes the ANR measurement timer time-out of predetermined threshold value or described terminal equipment, then initiate the 2nd RRC and connect reconfiguration course to be released to the Radio Resource carried out needed for described ANR measurement of described terminal equipment configuration, if the ANR measurement timer that the ANR measurement report number of times that described terminal equipment reports does not exceed predetermined threshold value or described terminal equipment is not overtime, then continue the ANR measurement report that described in wait-receiving mode, terminal equipment reports.
Preferably, described condition homologous ray being performed to ANR measurement, comprising:
There is the ability reading cell global identity CGI;
Support the frequency range measured for performing ANR;
Do not carry out speech business.
Preferably, the first frequency that the described terminal equipment of described selection is supported, comprising:
For each measurement frequency that described terminal equipment is supported, determine on described measurement frequency, perform described ANR measurement physical end quantity and expectation terminal quantity, described measurement frequency is the described frequency of terminal equipment access service community or the outside frequency of described Serving cell;
Using the difference that obtains after the expectation terminal quantity on same measurement frequency the deducts physical end quantity weighted value as described same measurement frequency;
Measurement frequency corresponding to weight limit is chosen as the first frequency from all being greater than the weighted value of zero.
Preferably, described method also comprises:
The expectation terminal quantity measured for each measurement frequency performing described ANR arranges maximum and minimum value, and described measurement frequency is the described frequency of terminal equipment access service community or the outside frequency of described Serving cell;
In foundation or when restarting described Serving cell, the expectation terminal quantity each measurement frequency performing described ANR measurement is set to described maximum;
The whether known terminal quantity upgrading described current expectation in described community representated by described PCI, comprising:
If the community representated by described PCI is known cell, the community that all ANR measurement reports then received in current setting-up time and on described first frequency report be known cell or current continuous set point number and the community that all ANR measurement reports received on described first frequency report is known cell time, then reduce for carrying out the expectation terminal quantity of described ANR measurement on described first frequency, the expectation terminal quantity after described minimizing is not less than described minimum value;
If the community representated by described PCI is unknown cell, then increase for carrying out the expectation terminal quantity of described ANR measurement on described first frequency, the expectation terminal quantity after described increase is not more than described maximum.
Preferably, the metering system that described ANR measures is the metering system that initiatively ANR metering system or described ANR measure is passive ANR metering system and active ANR metering system;
Wherein, described passive ANR metering system is the mode that described terminal equipment detects the adjacent cell of described Serving cell in mobility measurements process, described active ANR metering system is described terminal equipment detects the adjacent cell of described Serving cell mode according to the control strategy of base station, and described active ANR metering system is metering system or the periodic measurement mode of event triggering.
Preferably, when described ANR is measured as with when ANR measures frequently, the Survey control parameter of described active ANR metering system comprises:
Measuring amount, the amount of reporting, amplitude is sluggish, time lag, A3 amount of bias;
When described ANR is measured as alien frequencies ANR measurement, the Survey control parameter of described active ANR metering system comprises:
Measuring amount, the amount of reporting, amplitude is sluggish, time lag, A3 amount of bias, A4 thresholding or A5 thresholding.
The embodiment of the present invention additionally provides a kind of base station, comprising:
First frequency selected cell, if be in radio resource control RRC connected state for terminal equipment and base station, and described terminal equipment has condition homologous ray being performed to Automatic Neighboring Relation ANR measurement, then select the first frequency that described terminal equipment is supported, physical end quantity for carrying out described ANR measurement on described first frequency is less than the terminal quantity of current expectation, described homologous ray is the network system of described terminal equipment access, and the network system of described terminal equipment access is LTE standard;
First resource reprovision unit, for the metering system selecting described ANR to measure for described terminal equipment, and initiate a RRC connection reconfiguration course according to described metering system, think that described terminal equipment configuration carries out the Radio Resource needed for described ANR measurement on described first frequency;
Terminal quantity updating block, for when receive that described terminal equipment reports on described first frequency comprise the ANR measurement report of Physical Cell Identifier PCI after, the whether known terminal quantity upgrading described current expectation in the community representated by described PCI;
Secondary resource reprovision unit, if the ANR measurement report number of times reported for described terminal equipment exceedes the ANR measurement timer time-out of predetermined threshold value or described terminal equipment, then initiate the 2nd RRC and connect reconfiguration course to be released to the Radio Resource carried out needed for described ANR measurement of described terminal equipment configuration, if the ANR measurement timer that the ANR measurement report number of times that described terminal equipment reports does not exceed predetermined threshold value or described terminal equipment is not overtime, then continue the ANR measurement report that described in wait-receiving mode, terminal equipment reports.
Preferably, described condition homologous ray being performed to ANR measurement, comprising:
There is the ability reading cell global identity CGI;
Support the frequency range measured for performing ANR;
Do not carry out speech business.
Preferably, described first frequency selected cell, comprising:
Terminal quantity determination subelement, for each measurement frequency supported for described terminal equipment, determine on described measurement frequency, perform described ANR measurement physical end quantity and expectation terminal quantity, described measurement frequency is the described frequency of terminal equipment access service community or the outside frequency of described Serving cell;
Weighted value determination subelement, the difference obtained after the expectation terminal quantity on same measurement frequency is deducted physical end quantity is as the weighted value of described same measurement frequency;
Frequency chooser unit, for choosing measurement frequency corresponding to weight limit as the first frequency from all being greater than in the weighted value of zero.
Preferably, described base station also comprises:
Be worth most setting unit, arrange maximum and minimum value for the expectation terminal quantity measured for each measurement frequency performing described ANR, described measurement frequency is the described frequency of terminal equipment access service community or the outside frequency of described Serving cell;
Initial value setup unit, in foundation or when restarting described Serving cell, is set to described maximum by the expectation terminal quantity each measurement frequency performing described ANR measurement;
Described terminal quantity updating block, comprising:
Terminal quantity reduces unit, if be known cell for the community representated by described PCI, the community that all ANR measurement reports then received in current setting-up time and on described first frequency report be known cell or current continuous set point number and the community that all ANR measurement reports received on described first frequency report is known cell time, then reduce for carrying out the expectation terminal quantity of described ANR measurement on described first frequency, the expectation terminal quantity after described minimizing is not less than described minimum value;
Terminal quantity increases unit, if be unknown cell for the community representated by described PCI, then increase for carrying out the expectation terminal quantity of described ANR measurement on described first frequency, the expectation terminal quantity after described increase is not more than described maximum.
Preferably, the metering system that described ANR measures is the metering system that initiatively ANR metering system or described ANR measure is passive ANR metering system and active ANR metering system;
Wherein, described passive ANR metering system is the mode that described terminal equipment detects the adjacent cell of described Serving cell in mobility measurements process, described active ANR metering system is described terminal equipment detects the adjacent cell of described Serving cell mode according to the control strategy of base station, and described active ANR metering system is metering system or the periodic measurement mode of event triggering.
Preferably, when described ANR is measured as with when ANR measures frequently, the Survey control parameter of described active ANR metering system comprises:
Measuring amount, the amount of reporting, amplitude is sluggish, time lag, A3 amount of bias;
When described ANR is measured as alien frequencies ANR measurement, the Survey control parameter of described active ANR metering system comprises:
Measuring amount, the amount of reporting, amplitude is sluggish, time lag, A3 amount of bias, A4 thresholding or A5 thresholding.
The Survey control method of the homologous ray neighboring BS relationship that the embodiment of the present invention provides and base station, base station increases the physical end quantity of the participation ANR measurement on certain frequency by choosing the terminal equipment meeting ANR measuring condition, and the expectation terminal quantity upgraded according to the PCI in the ANR measurement report of current reception on this frequency, the terminal equipment simultaneously controlling to meet certain condition exits ANR and measures, like this by controlling the UE quantity each measurement frequency participating in ANR measurement, reach the object finding outside adjacent area fast.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram setting up neighboring BS relationship in prior art in LTE standard;
Fig. 2 is the schematic flow sheet of the Survey control method of embodiment of the present invention homologous ray neighboring BS relationship;
Fig. 3 is the Signalling exchange figure of the Survey control method of embodiment of the present invention homologous ray neighboring BS relationship;
Fig. 4 is the composition schematic diagram of embodiment of the present invention base station.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In the embodiment of the present invention, LTE base station can control the UE meeting certain condition, be linked into LTE network, make the outside frequency of the frequency of UE at place, Serving cell or Serving cell (comprise LTE and other standard) performs scan task, this scan task is that ANR measures.Once UE scanning makes new advances community, base station can be adjudicated, and adds neighborhood region correlation chart (Neighbor Relation Table is called for short NRT) to set up neighboring BS relationship when new community satisfies condition by new community.When base station ANR function is just opened, when finding more new community, measure performing comparatively intensive ANR, so that the neighboring BS relationship needed for setting up in time.After having spent a period of time, the outside adjacent area of Serving cell is substantially all found, and base station should make the least possible UE perform ANR measurement.But even if do not find new community for a long time, action also must be measured, so that the change of Timeliness coverage network at each little block reservation necessity, MIN ANR in base station.
The embodiment of the present invention gives homologous ray (Intra-LTE) ANR method of measurement, and lower mask body introduces Intra-LTE ANR method of measurement.
See Fig. 2, the schematic flow sheet of the Survey control method of the homologous ray neighboring BS relationship provided for the embodiment of the present invention, the method comprises the following steps:
Step 201: if terminal equipment and base station are in wireless heterogeneous networks (Radio Resource Control, be called for short RRC) connected state, and described terminal equipment has condition homologous ray being performed to Automatic Neighboring Relation ANR measurement, then the first frequency of base station selected described terminal equipment support, physical end quantity for carrying out described ANR measurement on described first frequency is less than the terminal quantity of current expectation, described homologous ray is the network system of described terminal equipment access, and the network system of described terminal equipment access is LTE standard.
Wherein, described terminal equipment is LTE UE, and described base station is LTE eNodeB.
LTE eNodeB can utilize the ANR measurement function of LTE UE to set up and safeguard the neighboring BS relationship in homologous ray between each community, but this needs enough UE number of samples and time enough.If neighboring BS relationship can not be set up in time and real-time update neighboring BS relationship, call drop may be caused because switching in time.
The action that control ANR measures can be divided into initiatively ANR and passive ANR.
Passive ANR, namely in conventional mobility measurements process, finds unknown adjacent area and the ANR action caused.If time long enough, passive ANR also finally can set up the neighboring BS relationship of full Serving cell, but shortcoming is: may cause switching call drop before setting up full neighboring BS relationship.
Initiatively ANR can solve passive ANR Problems existing, when LTE network uses active ANR function, base station can according to certain strategy control UE on one's own initiative, UE is allowed to scan service frequency and the adjacent external frequency of resident service community, to detect the adjacent external community (homologous ray) of resident service community in time, and read CGI further, to determine whether to set up neighboring BS relationship according to certain rule.
Initiatively whether ANR uses by switch control rule.Before UE mobility measurements triggers, initiatively ANR measurement is used to set up neighboring BS relationship fast.Within preset time, the UE of the some satisfied condition is reported PCI by selection and reads CGI, in elected UE report number of times or on call time when exceeding configured threshold, stop the measurement choosing UE to carry out ANR relevant to report.
Minimum in order to ensure service impact, the LTE UE meeting certain condition is only selected to carry out ANR measurement, namely when LTE UE initial access network or when being switched to object community, UE meet following can perform to homologous ray the condition that ANR measures time, the PCI measurement that just can perform ANR relevant reports:
(1), UE has the ability reading cell global identity CGI.
(2), the support of UE ability is for performing the frequency range of ANR measurement.
(3), UE do not carry out speech business, and namely UE does not have voice bearer, namely without the activation RAB of QCI=1.Wherein, QCI is the abbreviation of QoS Class Identifier (qos class mark); Qos is the abbreviation of Quality of Service (service quality); RAB (Radio Access Bearer) refers to the carrying of user plane.
In the present embodiment, the outside frequency configuration of frequency and Serving cell at place, Serving cell determines the measurement frequency measured for ANR.For each measurement frequency, base station real-time tracking performs the physical end quantity of the PCI measurement that ANR is correlated with and expects terminal quantity on this frequency, and when expecting that terminal quantity is greater than physical end quantity, base station will continue configuration UE and perform ANR measurement.In order to reduce the impact on performance, the ANR that the UE satisfied condition only performs on a frequency measures.In order to the fairness ensureing that on frequency, ANR measures, for each frequency, the desirably difference row priority of terminal quantity and physical end quantity, namely it is this frequency weight that the expectation terminal quantity defined on certain frequency deducts physical end quantity, the frequency priority that weight is larger is higher, and vice versa.The frequency that priority is the highest preferentially obtains UE and measures to perform ANR; When UE does not support certain frequency, the frequency of the lower priority selecting UE to support performs ANR and measures.Based on foregoing, in step 201, the first frequency described terminal equipment can being selected in the following manner to support:
For each measurement frequency that described terminal equipment is supported, determine on described measurement frequency, perform described ANR measurement physical end quantity and expectation terminal quantity, described measurement frequency is the described frequency of terminal equipment access service community or the outside frequency of described Serving cell;
Using the difference that obtains after the expectation terminal quantity on same measurement frequency the deducts physical end quantity weighted value as described same measurement frequency;
Measurement frequency corresponding to weight limit is chosen as the first frequency from all being greater than the weighted value of zero.
It should be noted that, described first frequency refers to certain frequency in all frequencies that terminal equipment is supported, namely " first " does not comprise related meanings such as any " sequentially ".
Step 202: base station is the metering system that described terminal equipment is selected described ANR and measured, and initiate a RRC connection reconfiguration course according to described metering system, think that described terminal equipment configuration carries out the Radio Resource needed for described ANR measurement on described first frequency.
As previously mentioned, passive ANR based on conventional mobility measurements, initiatively ANR be user's ACTIVE CONTROL, measurement for the purpose of the neighboring BS relationship that upgrades in time.In order to find outside adjacent area fast, can only adopt initiatively ANR, or passive ANR carries out with these two kinds of Survey control strategies of active ANR simultaneously.
Therefore, in step 202., when the network system that described terminal equipment accesses is LTE system, the metering system that described ANR measures is the metering system that initiatively ANR metering system or described ANR measure is passive ANR metering system and active ANR metering system; Wherein, described passive ANR metering system is the mode that described terminal equipment detects the adjacent cell of described Serving cell in mobility measurements process, described active ANR metering system is described terminal equipment detects the adjacent cell of described Serving cell mode according to the control strategy of base station, and described active ANR metering system is metering system or the periodic measurement mode of event triggering.
The ANR that described event triggers can the potential external cell that satisfies condition of Timeliness coverage, and energy-conservation to UE, to reduce signaling quantity helpful.
Particularly, for active ANR, when carrying out Survey control, can the ANR of event triggering be selected to measure or periodically ANR measurement by selector switch.Can be a set of observing and controlling parameter of ANR measuring and design specially, also existing observing and controlling parameter can be reused, such as in specific implementation, reusable conventional mobility test configurations, and increase ANR characteristic deviation amount and definition different parameters on this basis, for example, the A3 with ANR relative offset amount is used to configure with in frequency (working frequency points of UE is identical with the dominant frequency point of Serving cell) situation, A5 or A4 with ANR relative offset amount is used to configure in alien frequencies (working frequency points of UE is different with the dominant frequency point of Serving cell) situation, etc.The setting object of described side-play amount wants Extended Cell Measured Boundary scope, so that the respective cell before handover takes place within the scope of Measured Boundary just can be found, stops the time of enough reading CGI simultaneously.Therefore, the tactful user of concrete use of initiatively ANR measurement can configure, and for homologous ray initiatively ANR measurement, in order to find adjacent area as early as possible, dividing and can use the Survey control parameter different with traverse measurement with frequency, alien frequencies situation.
When described ANR is measured as with when ANR measures frequently, the Survey control parameter of described active ANR metering system comprises: measuring amount, the amount of reporting, and amplitude is sluggish, time lag, A3 amount of bias; When described ANR is measured as alien frequencies ANR measurement, the Survey control parameter of described active ANR metering system comprises: measuring amount, the amount of reporting, and amplitude is sluggish, time lag, A3 amount of bias, A4 thresholding or A5 thresholding.
Particularly, in same situation frequently, described Survey control parameter includes but not limited to following parameter configuration:
With frequency ANR measuring amount;
With the frequency ANR amount of reporting;
ANR measures with frequently switching A3 amount of bias;
ANR measures with frequently switching amplitude sluggish;
ANR measures with frequency sluggish for switching time.
Particularly, in alien frequencies situation, described Survey control parameter includes but not limited to following parameter configuration:
The measuring amount that alien frequencies ANR measures;
The amount of reporting that alien frequencies ANR measures;
Alien frequencies ANR measures A3 amount of bias;
Alien frequencies ANR measuring amplitude is sluggish;
Alien frequencies ANR Measuring Time is sluggish;
Alien frequencies ANR measures A4RSRQ thresholding, or alien frequencies ANR measures A5RSRQ thresholding 2;
Alien frequencies ANR measures A4RSRP thresholding, or alien frequencies ANR measures A5RSRP thresholding 2;
Alien frequencies ANR measures A5RSRQ thresholding 1;
Alien frequencies ANR measures A5RSRP thresholding 1.
Wherein, RSRQ (Reference Signal Receiving Quality) represents Reference Signal Received Quality, and RSRP (Reference Signal Receiving Power) represents Reference Signal Received Power.
In step 202., when described active ANR metering system is specially the metering system of event triggering, base station can be carried out RRC connection to terminal equipment and be reshuffled, the ANR making reprovision measure the triggering of support event measures, when message has been reshuffled in the RRC connection receiving terminal equipment transmission waiting, determine configuration successful; When described active ANR metering system is specially periodic measurement mode, base station can be carried out RRC connection to terminal equipment and be reshuffled, reprovision measurement is supported, and periodically ANR measures, and when message has been reshuffled in the RRC connection receiving terminal equipment transmission waiting, determines configuration successful.Wherein, periodically ANR measurement reports configured measurement object to comprise: Report StrongestCells (reporting Qiang community) and Report Strongest Cells For Son (for SON reports Qiang community).
Step 203: when base station receive that described terminal equipment reports on described first frequency comprise the ANR measurement report of Physical Cell Identifier PCI after, the whether known terminal quantity upgrading described current expectation in the community representated by described PCI.
Expectation terminal quantity on each measurement frequency of the result dynamic management that base station can report according to actual measurement, is specially:
(1), base station be each measurement frequency performs described ANR measure expectation terminal quantity maximum and minimum value are set, described measurement frequency is the described frequency of terminal equipment access service community or the outside frequency of described Serving cell; In foundation or when restarting described Serving cell, the expectation terminal quantity each measurement frequency performing described ANR measurement is set to described maximum.
Particularly, can according to frequently same and alien frequencies, the expectation terminal quantity be respectively on each measurement frequency sets up maximum and minimum value.
(2), on each measurement frequency, when base station finds to contain discernible PCI in ANR measurement report (no matter being that active ANR measures or passive ANR measures), if now a period of time or continuous certain number of times have received the ANR measurement report content reported continuously is all known community, then divide and reduce expectation terminal quantity, until reduce to described minimum value with frequency or alien frequencies; When finding to contain Unidentified PCI in ANR measurement report (no matter being that active ANR measures or passive ANR measures), frequently same or alien frequencies increase expectation terminal quantity can be divided, till being increased to initial expectation terminal quantity value (i.e. described maximum).It should be noted that, because a lot of UE may not possess the ability measured and read CGI, so although can configure the minimum value expecting terminal quantity, the UE that actual participation is measured may lower than this value.Based on foregoing, in step 203, the whether known terminal quantity upgrading described current expectation in the community of base station representated by described PCI, concrete operations are as follows:
If the community representated by described PCI is known cell, then in current setting-up time (namely in continuous a period of time) and the community that all ANR measurement reports received on described first frequency report be known cell or current continuous set point number and the community that all ANR measurement reports received on described first frequency report is known cell time, then reduce for carrying out the expectation terminal quantity of described ANR measurement on described first frequency, the expectation terminal quantity after described minimizing is not less than described minimum value; If the community representated by described PCI is unknown cell, then increase for carrying out the expectation terminal quantity of described ANR measurement on described first frequency, the expectation terminal quantity after described increase is not more than described maximum.
Step 204: if the ANR measurement report number of times that described terminal equipment reports exceedes the ANR measurement timer time-out of predetermined threshold value or described terminal equipment, then the 2nd RRC connection reconfiguration course is initiated to be released to the Radio Resource carried out needed for described ANR measurement of described terminal equipment configuration in base station, if the ANR measurement timer that the ANR measurement report number of times that described terminal equipment reports does not exceed predetermined threshold value or described terminal equipment is not overtime, then continue the ANR measurement report that described in wait-receiving mode, terminal equipment reports.
In step 204, in order to save the power consumption of terminal equipment UE, for the UE participating in ANR measurement, user can set maximum measuring time by timer and set maximum measurement and report number of times, when meeting maximum measuring time or maximum measurement and reporting number of times, control this UE and exit initiatively ANR and measure.
In order to understand said method embodiment more easily, shown in Figure 3, present invention also offers the Signalling exchange figure of the Survey control method of the homologous ray neighboring BS relationship corresponding with above-described embodiment, measure for homologous ray ANR, handling process is as follows:
Step 301:UE accesses and resides in LTE network, is now in RRC connected state between UE and eNodeB.
Step 302:eNodeB judges whether UE can perform ANR and measure, and if so, then performs step 303, if not, then and process ends.
Particularly, if UE meets following three conditions, namely adjudicate UE and can perform ANR measurement: UE has the ability reading CGI; The frequency range that the support of UE ability is measured for performing ANR; UE does not carry out speech business.
Step 303:eNodeB selects that UE supports, that weight is maximum frequency from all measurement frequencies, carries out the working frequency points of ANR measurement as UE.
Step 304:eNodeB judges to select the weighted value (difference that the expectation terminal quantity on this frequency obtains after deducting physical end quantity) of frequency whether to be greater than 0, if so, then performs step 305, if not, then and process ends.
Step 305:eNodeB judges the ANR metering system whether UE selects event to trigger, and if so, then performs step 306, if not, then performs step 308.
Step 306:eNodeB carries out RRC connection to UE and reshuffles, and the ANR making UE support event to trigger measures.
Step 307: after UE completes and reshuffles, sends RRC to eNodeB and connects and reshuffled message, perform step 310.
Step 308:eNodeB carries out RRC connection to UE and reshuffles, and UE is supported, and periodically ANR measures.
Step 309: after UE completes and reshuffles, sends RRC to eNodeB and connects and reshuffled message, perform step 310.
Step 310:eNodeB makes the UE calculator on this frequency add for 1 (showing that the UE number this frequency participating in ANR measurement adds 1), to upgrade the physical end quantity on this frequency; Meanwhile, start the measurement timer of this UE, to record the time that UE participates in ANR measurement; Meanwhile, this UE PCI measurement is before this reported number of times clear 0.
Step 311:eNodeB waits for the ANR measurement report of UE.
Step 312:UE reports ANR measurement report to eNodeB.
Whether step 313:eNodeB is unknown according to the PCI in ANR measurement report, upgrades the expectation terminal quantity on this frequency.
Whether step 314:eNodeB judges whether ANR measurement report number of times that this UE reports exceeds the measurement timer of predetermined threshold value or this UE overtime, if so, then performs step 315, if not, then performs step 311.
Step 315:eNodeB carries out RRC connection to UE and reshuffles, release related resource, makes UE no longer support the ANR measurement of periodically ANR measurement or event triggering.
Step 316: after UE completes and reshuffles, sends RRC to eNodeB and connects and reshuffled message.
The method of measurement of the homologous ray neighboring BS relationship that the embodiment of the present invention provides, base station increases the physical end quantity of the participation ANR measurement on certain frequency by choosing the terminal equipment meeting ANR measuring condition, and the expectation terminal quantity upgraded according to the PCI in the ANR measurement report of current reception on this frequency, the terminal equipment simultaneously controlling to meet certain condition exits ANR and measures, like this by controlling the UE quantity each measurement frequency participating in ANR measurement, reach the object finding outside adjacent area fast.
In sum, the embodiment of the present invention allows user according to the situation configuration ANR Survey control strategy of network physical planning, namely selects initiatively ANR or passive ANR; As use initiatively ANR, base station is measured according to certain policy control terminal, ensures to find adjacent area fast, being reduced to minimum to the influence degree of customer service, reduce terminal power consumption again.If terminal has the condition performing ANR and measure, then select that weight is maximum and the outside frequency being greater than 0 carries out ANR measurement, when receive that terminal reports on this frequency comprise the ANR measurement report of PCI Physical Cell Identifier after, the community representated by this Physical Cell Identifier of PCI whether known come the weight of the current frequency of adaptive updates; If the ANR measurement report number of times of terminal to report exceedes the ANR measurement timer time-out of predetermined threshold value or terminal, then recover normal mobility measurements, if the ANR measurement timer that the ANR measurement report number of times of terminal to report does not exceed predetermined threshold value or terminal is not overtime, then continue the ANR measurement report of wait-receiving mode terminal to report.
Further, the embodiment of the present invention also describes composition and the function of base station, and relevant part refers to said method embodiment.
See Fig. 4, be the composition schematic diagram of the base station that the embodiment of the present invention provides, this base station 400 comprises:
First frequency selected cell 401, if be in radio resource control RRC connected state for terminal equipment and base station, and described terminal equipment has condition homologous ray being performed to Automatic Neighboring Relation ANR measurement, then select the first frequency that described terminal equipment is supported, physical end quantity for carrying out described ANR measurement on described first frequency is less than the terminal quantity of current expectation, described homologous ray is the network system of described terminal equipment access, and the network system of described terminal equipment access is LTE standard.
Wherein, described condition homologous ray being performed to ANR measurement, comprising: have the ability reading cell global identity CGI; Support the frequency range measured for performing ANR; Do not carry out speech business.
Wherein, described first frequency selected cell, comprise: terminal quantity determination subelement, for each measurement frequency supported for described terminal equipment, determine on described measurement frequency, perform described ANR measurement physical end quantity and expectation terminal quantity, described measurement frequency is the described frequency of terminal equipment access service community or the outside frequency of described Serving cell; Weighted value determination subelement, the difference obtained after the expectation terminal quantity on same measurement frequency is deducted physical end quantity is as the weighted value of described same measurement frequency; Frequency chooser unit, for choosing measurement frequency corresponding to weight limit as the first frequency from all being greater than in the weighted value of zero.
First resource reprovision unit 402, for the metering system selecting described ANR to measure for described terminal equipment, and initiate a RRC connection reconfiguration course according to described metering system, think that described terminal equipment configuration carries out the Radio Resource needed for described ANR measurement on described first frequency.
Terminal quantity updating block 403, for when receive that described terminal equipment reports on described first frequency comprise the ANR measurement report of Physical Cell Identifier PCI after, the whether known terminal quantity upgrading described current expectation in the community representated by described PCI.
Secondary resource reprovision unit 404, if the ANR measurement report number of times reported for described terminal equipment exceedes the ANR measurement timer time-out of predetermined threshold value or described terminal equipment, then initiate the 2nd RRC and connect reconfiguration course to be released to the Radio Resource carried out needed for described ANR measurement of described terminal equipment configuration, if the ANR measurement timer that the ANR measurement report number of times that described terminal equipment reports does not exceed predetermined threshold value or described terminal equipment is not overtime, then continue the ANR measurement report that described in wait-receiving mode, terminal equipment reports.
In addition, described base station 400 also comprises:
Be worth most setting unit, arrange maximum and minimum value for the expectation terminal quantity measured for each measurement frequency performing described ANR, described measurement frequency is the described frequency of terminal equipment access service community or the outside frequency of described Serving cell; Initial value setup unit, in foundation or when restarting described Serving cell, is set to described maximum by the expectation terminal quantity each measurement frequency performing described ANR measurement;
Described terminal quantity updating block 403, comprising:
Terminal quantity reduces unit, if be known cell for the community representated by described PCI, the community that all ANR measurement reports then received in current setting-up time and on described first frequency report be known cell or current continuous set point number and the community that all ANR measurement reports received on described first frequency report is known cell time, then reduce for carrying out the expectation terminal quantity of described ANR measurement on described first frequency, the expectation terminal quantity after described minimizing is not less than described minimum value; Terminal quantity increases unit, if be unknown cell for the community representated by described PCI, then increase for carrying out the expectation terminal quantity of described ANR measurement on described first frequency, the expectation terminal quantity after described increase is not more than described maximum.
In addition, when the network system that described terminal equipment accesses is LTE system, the metering system that described ANR measures is the metering system that initiatively ANR metering system or described ANR measure is passive ANR metering system and active ANR metering system; Wherein, described passive ANR metering system is the mode that described terminal equipment detects the adjacent cell of described Serving cell in mobility measurements process, described active ANR metering system is described terminal equipment detects the adjacent cell of described Serving cell mode according to the control strategy of base station, and described active ANR metering system is metering system or the periodic measurement mode of event triggering.
Further, when described ANR is measured as with when ANR measures frequently, the Survey control parameter of described active ANR metering system comprises: measuring amount, the amount of reporting, and amplitude is sluggish, time lag, A3 amount of bias; When described ANR is measured as alien frequencies ANR measurement, the Survey control parameter of described active ANR metering system comprises: measuring amount, the amount of reporting, and amplitude is sluggish, time lag, A3 amount of bias, A4 thresholding or A5 thresholding.
Visible, the base station that the embodiment of the present invention provides, by controlling the UE quantity each measurement frequency participating in ANR measurement, reaches the object finding outside adjacent area fast.
As seen through the above description of the embodiments, those skilled in the art can be well understood to the mode that all or part of step in above-described embodiment method can add required general hardware platform by software and realizes.Based on such understanding, technical scheme of the present invention can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product can be stored in storage medium, as ROM/RAM, magnetic disc, CD etc., comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network communication equipments such as such as media gateway, etc.) perform the method described in some part of each embodiment of the present invention or embodiment.
It should be noted that, for base station disclosed in embodiment, because it corresponds to the method disclosed in Example, so description is fairly simple, relevant part illustrates see method part.
Also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (12)
1. a Survey control method for homologous ray neighboring BS relationship, is characterized in that, comprising:
If terminal equipment and base station are in radio resource control RRC connected state, and described terminal equipment has condition homologous ray being performed to Automatic Neighboring Relation ANR measurement, then the first frequency of base station selected described terminal equipment support, physical end quantity for carrying out described ANR measurement on described first frequency is less than the terminal quantity of current expectation, described homologous ray is the network system of described terminal equipment access, and the network system of described terminal equipment access is LTE standard;
For the metering system that described terminal equipment selects described ANR to measure, and initiate a RRC connection reconfiguration course according to described metering system, think that described terminal equipment configuration carries out the Radio Resource needed for described ANR measurement on described first frequency;
When receive that described terminal equipment reports on described first frequency comprise the ANR measurement report of Physical Cell Identifier PCI after, the whether known terminal quantity upgrading described current expectation in the community representated by described PCI;
If the ANR measurement report number of times that described terminal equipment reports exceedes the ANR measurement timer time-out of predetermined threshold value or described terminal equipment, then initiate the 2nd RRC and connect reconfiguration course to be released to the Radio Resource carried out needed for described ANR measurement of described terminal equipment configuration, if the ANR measurement timer that the ANR measurement report number of times that described terminal equipment reports does not exceed predetermined threshold value or described terminal equipment is not overtime, then continue the ANR measurement report that described in wait-receiving mode, terminal equipment reports.
2. method according to claim 1, is characterized in that, described condition homologous ray being performed to ANR measurement, comprising:
There is the ability reading cell global identity CGI;
Support the frequency range measured for performing ANR;
Do not carry out speech business.
3. method according to claim 1, is characterized in that, the first frequency that the described terminal equipment of described selection is supported, comprising:
For each measurement frequency that described terminal equipment is supported, determine on described measurement frequency, perform described ANR measurement physical end quantity and expectation terminal quantity, described measurement frequency is the described frequency of terminal equipment access service community or the outside frequency of described Serving cell;
Using the difference that obtains after the expectation terminal quantity on same measurement frequency the deducts physical end quantity weighted value as described same measurement frequency;
Measurement frequency corresponding to weight limit is chosen as the first frequency from all being greater than the weighted value of zero.
4. the method according to any one of claims 1 to 3, is characterized in that, described method also comprises:
The expectation terminal quantity measured for each measurement frequency performing described ANR arranges maximum and minimum value, and described measurement frequency is the described frequency of terminal equipment access service community or the outside frequency of described Serving cell;
In foundation or when restarting described Serving cell, the expectation terminal quantity each measurement frequency performing described ANR measurement is set to described maximum;
The whether known terminal quantity upgrading described current expectation in described community representated by described PCI, comprising:
If the community representated by described PCI is known cell, the community that all ANR measurement reports then received in current setting-up time and on described first frequency report be known cell or current continuous set point number and the community that all ANR measurement reports received on described first frequency report is known cell time, then reduce for carrying out the expectation terminal quantity of described ANR measurement on described first frequency, the expectation terminal quantity after described minimizing is not less than described minimum value;
If the community representated by described PCI is unknown cell, then increase for carrying out the expectation terminal quantity of described ANR measurement on described first frequency, the expectation terminal quantity after described increase is not more than described maximum.
5. the method according to any one of claims 1 to 3, is characterized in that, the metering system that described ANR measures is the metering system that initiatively ANR metering system or described ANR measure is passive ANR metering system and active ANR metering system;
Wherein, described passive ANR metering system is the mode that described terminal equipment detects the adjacent cell of described Serving cell in mobility measurements process, described active ANR metering system is described terminal equipment detects the adjacent cell of described Serving cell mode according to the control strategy of base station, and described active ANR metering system is metering system or the periodic measurement mode of event triggering.
6. method according to claim 5, is characterized in that,
When described ANR is measured as with when ANR measures frequently, the Survey control parameter of described active ANR metering system comprises:
Measuring amount, the amount of reporting, amplitude is sluggish, time lag, A3 amount of bias;
When described ANR is measured as alien frequencies ANR measurement, the Survey control parameter of described active ANR metering system comprises:
Measuring amount, the amount of reporting, amplitude is sluggish, time lag, A3 amount of bias, A4 thresholding or A5 thresholding.
7. a base station, is characterized in that, comprising:
First frequency selected cell, if be in radio resource control RRC connected state for terminal equipment and base station, and described terminal equipment has condition homologous ray being performed to Automatic Neighboring Relation ANR measurement, then select the first frequency that described terminal equipment is supported, physical end quantity for carrying out described ANR measurement on described first frequency is less than the terminal quantity of current expectation, described homologous ray is the network system of described terminal equipment access, and the network system of described terminal equipment access is LTE standard;
First resource reprovision unit, for the metering system selecting described ANR to measure for described terminal equipment, and initiate a RRC connection reconfiguration course according to described metering system, think that described terminal equipment configuration carries out the Radio Resource needed for described ANR measurement on described first frequency;
Terminal quantity updating block, for when receive that described terminal equipment reports on described first frequency comprise the ANR measurement report of Physical Cell Identifier PCI after, the whether known terminal quantity upgrading described current expectation in the community representated by described PCI;
Secondary resource reprovision unit, if the ANR measurement report number of times reported for described terminal equipment exceedes the ANR measurement timer time-out of predetermined threshold value or described terminal equipment, then initiate the 2nd RRC and connect reconfiguration course to be released to the Radio Resource carried out needed for described ANR measurement of described terminal equipment configuration, if the ANR measurement timer that the ANR measurement report number of times that described terminal equipment reports does not exceed predetermined threshold value or described terminal equipment is not overtime, then continue the ANR measurement report that described in wait-receiving mode, terminal equipment reports.
8. base station according to claim 7, is characterized in that, described condition homologous ray being performed to ANR measurement, comprising:
There is the ability reading cell global identity CGI;
Support the frequency range measured for performing ANR;
Do not carry out speech business.
9. base station according to claim 7, is characterized in that, described first frequency selected cell, comprising:
Terminal quantity determination subelement, for each measurement frequency supported for described terminal equipment, determine on described measurement frequency, perform described ANR measurement physical end quantity and expectation terminal quantity, described measurement frequency is the described frequency of terminal equipment access service community or the outside frequency of described Serving cell;
Weighted value determination subelement, the difference obtained after the expectation terminal quantity on same measurement frequency is deducted physical end quantity is as the weighted value of described same measurement frequency;
Frequency chooser unit, for choosing measurement frequency corresponding to weight limit as the first frequency from all being greater than in the weighted value of zero.
10. the base station according to any one of claim 7 to 9, is characterized in that, described base station also comprises:
Be worth most setting unit, arrange maximum and minimum value for the expectation terminal quantity measured for each measurement frequency performing described ANR, described measurement frequency is the described frequency of terminal equipment access service community or the outside frequency of described Serving cell;
Initial value setup unit, in foundation or when restarting described Serving cell, is set to described maximum by the expectation terminal quantity each measurement frequency performing described ANR measurement;
Described terminal quantity updating block, comprising:
Terminal quantity reduces unit, if be known cell for the community representated by described PCI, the community that all ANR measurement reports then received in current setting-up time and on described first frequency report be known cell or current continuous set point number and the community that all ANR measurement reports received on described first frequency report is known cell time, then reduce for carrying out the expectation terminal quantity of described ANR measurement on described first frequency, the expectation terminal quantity after described minimizing is not less than described minimum value;
Terminal quantity increases unit, if be unknown cell for the community representated by described PCI, then increase for carrying out the expectation terminal quantity of described ANR measurement on described first frequency, the expectation terminal quantity after described increase is not more than described maximum.
11. base stations according to any one of claim 7 to 9, is characterized in that, the metering system that described ANR measures to be metering system that initiatively ANR metering system or described ANR measure be passive ANR metering system and initiatively ANR metering system;
Wherein, described passive ANR metering system is the mode that described terminal equipment detects the adjacent cell of described Serving cell in mobility measurements process, described active ANR metering system is described terminal equipment detects the adjacent cell of described Serving cell mode according to the control strategy of base station, and described active ANR metering system is metering system or the periodic measurement mode of event triggering.
12. base stations according to claim 11, is characterized in that,
When described ANR is measured as with when ANR measures frequently, the Survey control parameter of described active ANR metering system comprises:
Measuring amount, the amount of reporting, amplitude is sluggish, time lag, A3 amount of bias;
When described ANR is measured as alien frequencies ANR measurement, the Survey control parameter of described active ANR metering system comprises:
Measuring amount, the amount of reporting, amplitude is sluggish, time lag, A3 amount of bias, A4 thresholding or A5 thresholding.
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