The application be to the applying date be on June 12nd, 2009, application number is that 200910086984.9 invention and created name is the dividing an application of application for a patent for invention of a kind of coverage detection method of reference mark channel and equipment.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described.
Because the optimization that the RS channel covers is the primary content of LTE system coverage optimization, therefore, so long as with the communication system of LTE system based on same framework and principle, the technical scheme that is provided in the embodiment of the invention is just same to be adapted to, for example be applicable to LTE and follow-up evolution system thereof (as LTE+ etc.) and the similar system of other technical characterictics, also therefore, be that example describes only in the following execution mode with the LTE system.
Same covering measurement parameter carries out because manual optimization that covers and Automatic Optimal all are based on, therefore, in the manual optimization that technical scheme in the embodiment of the invention is not only applicable to cover, also be applicable in the Automatic Optimal, but, only be that example describes in the following execution mode with the coverage self-optimization in order to narrate conveniently.
In the enforcement, at first need to detect existence and cover relevant problem, SON server (may or be positioned on infrastructure device, network management center or other network equipments for independent equipment) will start the coverage optimization algorithm and specifically be adjusted measure to make decisions then, promptly determine to adopt which adjustment measure, as: be adjusting power or call amount rate etc., and determine to adjust which parameter; At last, Xiang Guan network entity will be carried out corresponding adjustment measure.If the equipment of equipment that makes decisions and execution not on an entity, also needs measure of needs being carried out by interface and the parameter that will adjust thereof to send on the entity that concrete execution adjusts.Usually covering problem can be divided into the covering cavity, cross covering and weak covering, will do explanation to the detection of covering problem in the embodiment of the invention.
When covering problem is detected,, need specific coverage detection method for specific covering problem.For covering the cavity, because not at particular channel, so detection method is not distinguished channel.And for a little less than covering strong and covering, because at particular channel, so a little less than the covering of different channels crossed strong or covered, need specific detection method, influence bigger channel because RS channel and BCH channel are the LTE systems to covering, need not do coverage optimization at this channel but do not get rid of other channels.This just need need following function at the CCO of SON use-case:
(1) RS channel coverage optimization;
(2) BCH channel coverage optimization;
(3) coupling of up-downgoing channel.
Need to prove that needed function is not got rid of the coverage optimization of other channels in the CCO use-case of SON.
What provide in the embodiment of the invention is the scheme that detects for the covering problem of realizing RS channel coverage optimization, comprising detecting the weak scheme that covers that covers and cross.
Fig. 2 is the coverage detection method implementing procedure schematic diagram of RS channel, as shown in the figure, can comprise the steps: during detection
Step 201, be provided with weak and/or cross the covering threshold value and be sent to UE;
Step 202, to the weak of RS channel and/or cross to cover when detecting, UE obtains measurement result;
Measurement result in this step can comprise: the lagged value Hys of Serving cell, RSRP value, or the lagged value Hys of Serving cell, RSRQ value, wherein RSRP is Reference Signal Received Power (Reference Signal Received Power), RSRQ is Reference Signal Received Quality (Reference Signal Received Quality), and the two all is a measuring amount.
Step 203, according to described measurement result and weak and/or cross the covering threshold value and judge whether the RS channel is weak and/or crosses covering.
Be provided with weak and/or cross in step 201 and cover in the enforcement of threshold value, weak covering threshold value can be provided with according to engineering experience or simulation result, the translational speed of UE, the threshold value of A2 incident; Cross and cover threshold value and can be provided with according to engineering experience or simulation result, the translational speed of UE, the threshold value of A1 incident.
Concrete, can be according to engineering experience or simulation result, for the RS channel is provided with the threshold value of a covering, be designated as Thresh-Weak in an embodiment; Can be different scenes, as dense city, city, suburb or sea, can dispose different Thresh-Weak according to different scenes, translational speed that also can the user is provided with different Thresh-Weak.
In the enforcement of step 202, can further include: UE obtains locating information, and locating information can comprise: one of time difference information of the positional information of UE, the supplementary that is used to locate, base station or its combination.
Concrete, if UE has positioning function, then can comprise the positional information of UE or the supplementary that is used to locate; If UE does not have electronic chart, then need not report geographical problem information such as concrete precision, latitude, can report supplementarys such as time difference as several base stations.
Like this, after definite channel is weak and/or crosses covering, just can be with locating information feedback network side.
Further, network side just can be determined the overlay area according to locating information.
Concrete, can parse wherein information by locating information, as positional information or supplementary etc., if what obtain is the position supplementary, network information in view of the above uses OTDOA (Observed Time Difference Of Arrival observes arriving time difference measurements), AOA location algorithms such as (angle-Of-Arrival-LCR, arrival bearing user measures) and locate mode to calculate the particular location of UE, thereby according to the positional information of own base station, the zone that obtains covering.
In the enforcement of step 203, according to described measurement result and weak and/or cross the covering threshold value and judge that whether the RS channel is weak and/or during the mistake covering, can be specially:
1, if the lagged value Hys of Serving cell and RSRP value sum less than weak covering threshold value, or the lagged value Hys of Serving cell and RSRQ value sum then are weak covering less than weak covering threshold value;
2, if the difference of the lagged value Hys of Serving cell and RSRP value greater than mistake covering threshold value, or the difference of the lagged value Hys of Serving cell and RSRQ value then was covering greater than covering threshold value excessively.
After UE received threshold value, when the measured RS power of UE, promptly the value of RSRP or RSRQ satisfied the entry condition of report network: Ms+Hys<Thresh.Wherein Ms is the Serving cell measurement result, and Hys is a lagged value, and Thresh is a threshold value, is the weak threshold value that covers of RS channel here.Ms both can be a RSRP value (dBm), also can be RSRQ value (dB);
After UE received threshold value, when the measured RS power of UE, promptly the value of RSRP or RSRQ satisfied the entry condition of report network: Ms-Hys>Thresh.Wherein Ms is the Serving cell measurement result, and Hys is a lagged value, and Thresh is a threshold value, is the threshold value that the RS channel is crossed covering here.Ms both can be a RSRP value (dBm), also can be RSRQ value (dB).
Step 203UE according to measurement result and weak and/or cross the covering thresholding judge the RS channel whether be weak and/or cross covering after, can further include:
After definite RS channel is weak and/or crosses covering, with locating information feedback network side;
Network side is determined the overlay area according to locating information.
Concrete, network side can will cover threshold value by measurement configuration messages, measurement control messages or system message and be sent to UE.
UE can be by A2 event report message and/or A1 event report message with locating information feedback network side.
In the enforcement, when weak covering threshold value is the threshold value of A2 incident, may further include:
A2 incident threshold value is set to the weak threshold value that covers;
UE carries out the A2 affair;
UE with A2 affair result as measurement result.
Can further include in the enforcement:
Before UE measured, A2 incident threshold value was set to the weak threshold value that covers;
After UE obtains measurement result, the setting of A2 incident threshold value is reverted to normally.
Also will describe in detail below and cover threshold value is the execution mode of schemes such as A2, A1 incident threshold value, and this place repeats no more.
For better explanation the specific embodiment of the present invention, detect with crossing to cover to detect from the weak covering of RS channel respectively below and describe.
Below the weak covering that detects the RS channel is described.
Embodiment one
Present embodiment is mainly introduced and is reused the execution mode that the A2 incident detects the weak covering of RS channel.
Fig. 3 is the weak coverage detection method implementing procedure schematic diagram of RS channel among the embodiment one, as shown in the figure, covers when detecting a little less than carrying out and can comprise the steps:
Step 301, the weak threshold value that covers is set.
In the enforcement,,, be designated as Thresh-Weak for the RS channel is provided with the threshold value that covers a little less than in the of according to engineering experience or simulation result; Can be for different scene configuration different Thresh-Weak, as dense city, city, suburb or sea, also different Thresh-Weak can be set according to the translational speed of UE.
The threshold value of reusing the A2 incident is that weak covering threshold value can be avoided the modification to existing standard, and therefore, present embodiment will be that example describes to reuse the A2 incident, the new threshold value that certainly concrete implementer also can define.
Need to prove, when reusing the threshold value of A2 incident, should not influence other functions of existing A2 incident, as switching or interference coordination etc., therefore, under the situation about a little less than start detection RS channel not, covering, use the threshold value of normal A1 incident, after covering a little less than the start detection RS channel, the A2 threshold value is revised as detection Thresh-Weak, after covering is closed a little less than detecting the RS channel, again the A2 threshold value is revised as normal value and uses for other functions of A2 incident.All the threshold value than normal A2 incident is low because Thresh-Weak is general, therefore can make the report can be so not frequent after reusing A2 incident threshold value on the one hand, also can not have influence on existing other functions because of reusing on the one hand in addition.
Step 302, send to UE detecting the weak relevant parameters such as threshold value that cover of RS channel.
When network need detect the RS channel and whether is weak covering, network was notified to UE by measuring configuration, measuring control or system message etc. detecting the weak relevant parameters such as threshold value that cover of RS channel, starts the detection of the weak covering of RS channel simultaneously.
Step 303, UE judge whether the RS channel is weak covering, are reporting orientation informations then.
After UE receives relevant parameter such as threshold value, the threshold value of A2 incident is revised as the threshold value that covers a little less than the RS channel of being received, other parameters are also carried out corresponding modification if change.When UE measures RS power, promptly the value of RSRP or RSRQ satisfies the entry condition of A2: Ms+Hys<Thresh.Wherein Ms is the Serving cell measurement result, and Hys is a lagged value, and Thresh is a threshold value, is the weak threshold value that covers of RS channel here.Ms both can be a RSRP value (dBm), also can be RSRQ value (dB).At this moment, UE will report the A2 incident to network, if UE has positioning function, the A2 incident comprise UE positional information or with the supplementary that is used to locate, if UE does not have electronic chart, then geographical problem information such as concrete precision, latitude need not be reported, supplementarys such as time difference can be reported as several base stations.
Step 304, network based locating information determine to occur the weak zone that covers.
After network is received the A2 incident, parse information wherein, as positional information or supplementary etc., if what obtain is the position supplementary, network information in view of the above uses location algorithm such as OTDOA, AOA and locate mode to calculate the particular location of UE, thereby, obtain occurring the weak zone that covers according to the positional information of own base station.
Step 305, definite weak overlay area.
With reference to other information such as the number of times of weak covering and positional informations, according to certain criterion, as in the certain location zone, UE reports the number of times of A2 to surpass certain thresholding etc., judges finally that also this zone is weak covering; If can not get the positional information of UE, can judge according to the certain criterion of this model specification according to preestablishing a user distribution model.Need to prove, can be different channel conditions, as dense city, city, suburb etc. different user distribution model is set, after the criterion that satisfies under this model, be judged as weak overlay area.
Embodiment two
Described among the embodiment one and reused existing A2 incident, in the enforcement, can also use present embodiment separately, perhaps adopt present embodiment simultaneously on the basis of embodiment one, present embodiment is mainly newly-increased A2 incident, and gives new sign of this incident, that is:
Increase the different A2 affair of sign;
The different A2 incident threshold value of sign that increases is set to the weak threshold value that covers;
UE carries out the different A2 affair of sign that increases;
The different A2 affair result of the sign that UE will increase is as measurement result.
Be that weak covering detects under the mode that starts a new A2 incident, covering a little less than carrying out can be as follows when detecting:
According to engineering experience or simulation result,, be designated as Thresh-Weak for the RS channel is provided with the threshold value that covers a little less than in the of; Can be for different scenes, as dense city, general city, the different Thresh-Weak of configuration on the suburb or the water surface, translational speed that also can the user is provided with different Thresh-Weak; For avoid modification as far as possible to existing standard, still reuse the thresholding of A2 incident, hereinafter, be that example describes with what reuse the A2 incident, the new thresholding that also can define in concrete certainly the enforcement.Need to prove, reuse the thresholding of A2 incident, should not influence other functions of existing A2 incident, as switching or interference coordination etc., so can a new measurement be set for covering a little less than being RS.
When network need detect the RS channel and whether is weak covering, network is by measuring configuration, measuring the measuring amount that control or system message etc. start the new A2 incident of UE, this new A2 incident is used a new measID, starts the weak detection that covers of RS channel simultaneously.
After UE receives, check if coupling measID (measures configuration variables at VarMeasConfig, concrete implication sees also 36.331) measIdList (measure the ID tabulation, concrete implication sees also 36.331) entity exist, then replace this entity with the measID that receives, otherwise the newly-built entity of measID for this reason.When the measured RS power of UE, promptly the value of RSRP or RSRQ satisfies the entry condition of A2: Ms+Hys<Thresh-Weak.Wherein Ms is the Serving cell measurement result, and Hys is a lagged value, and Thresh is a threshold value, is the weak threshold value that covers of RS channel here.Ms both can be a RSRP value (dBm), also can be RSRQ value (dB).At this moment, UE will report the A2 incident to network, if UE has positioning function, the A2 incident can comprise UE positional information or with the supplementary that is used to locate, if UE does not have electronic chart, then geographical problem information such as concrete precision, latitude need not be reported, supplementarys such as time difference can be reported as several base stations.
Step 304 among subsequent step and the embodiment one, 305 identical.
Embodiment three
The main introduction utilizes minimum road test to detect the weak execution mode that covers of RS channel in the present embodiment.That is:
In minimum road test, be provided with the weak of RS channel and/or cover excessively and detect.
In minimum road test, be provided with to network side feedback locating information.
Obviously, the scheme that present embodiment adopts both can be used separately, also can adopt simultaneously with embodiment one, two, and the three there is no repugnance.
Fig. 4 is the weak coverage detection method implementing procedure schematic diagram of RS channel among the embodiment three, as shown in the figure, embodiment 3 is the execution mode that this cell signal of UE log (record) is lower than the signal strength signal intensity and the supplementary thereof of certain thresholding, specifically covers when detecting a little less than carrying out and can comprise the steps:
Step 401: the weak threshold value that covers is set.
According to engineering experience or simulation result,, be designated as Thresh-Weak for the RS channel is provided with the threshold value that covers a little less than in the of; Can be for different scenes, as dense city, general city, the different Thresh-Weak of configuration on the suburb or the water surface, translational speed that also can the user is provided with different Thresh-Weak.
Step 402, send to UE detecting the weak relevant parameters such as threshold value that cover of RS channel.
Network is informed this Thresh-Weak thresholding to UE by measuring modes such as configuration, measurement control or system message; Perhaps by being thresholding of UE fixed configurations, perhaps take unified in a minimum road test configuration mode, perhaps other modes are informed or are disposed to UE.
Step 403, UE are judged when the RS channel is weak coverings, write down signal strength signal intensity and the supplementary thereof of RS.
When the signal strength signal intensity of the measured RS of UE satisfies: during Ms+Hys<Thresh-Weak, signal strength signal intensity and the supplementary thereof of the RS of record this moment, these supplementarys can comprise:
(1), if UE has positioning function, the A2 incident can comprise UE positional information or with the supplementary that is used to locate, if UE does not have electronic chart, then need not report geographical problem information such as concrete precision, latitude, can report supplementarys such as time difference as several base stations.
(2), incident stamp etc.
Step 404, by minimum road test to the network side reporting orientation information.
In concrete the enforcement, can report to network side after UE writes down a period of time, concrete mode can be carried out in minimum road test.
Minimum road test described in the embodiment is meant that the mode of some failure informations of record that utilize UE log (subscriber equipment record) assists artificial a large amount of drive test work.
Below the covering of crossing that detects the RS channel is described.
In the mistake overwrite procedure that detects the RS channel, not only can detect crossing of this sub-district and cover, also can detect crossing of adjacent sub-district RS channel simultaneously and cover.That is, in the mistake overwrite procedure that detects the RS channel, can further include:
Adjacent sub-district is set to be crossed the covering threshold value and is sent to user equipment (UE);
Crossing of the RS channel of adjacent sub-district covered when detecting, UE obtains the measurement result of adjacent sub-district, the measurement result of described adjacent sub-district comprises: the Reference Signal Received Power RSRP value of the lagged value of adjacent sub-district, adjacent sub-district, or the Reference Signal Received Quality RSRQ value of the lagged value of adjacent sub-district, adjacent sub-district;
According to the measurement result of described adjacent sub-district and cross and cover threshold value and judge whether the RS channel of adjacent sub-district was covering.
Obviously, to the detection of this sub-district, both can carry out separately the detection of adjacent sub-district, also can carry out simultaneously, in the following embodiments, will describe the execution mode of the two simultaneously, no longer the execution mode of independent execution to them is described to save length.
Embodiment four
Present embodiment is mainly introduced and is restarted the A1 incident and/or the A4 incident detects this sub-district and/or adjacent sub-district RS channel is crossed the execution mode of covering.That is:
In A1 and/or A4 incident, this sub-district is set and/or the covering threshold value is crossed in adjacent sub-district;
UE carries out A1 and/or A4 affair;
UE with A1 and/or A4 affair result as this sub-district and/or adjacent cell measurement result.
Accordingly, also can increase an A1 and/or A4 incident newly, and give new sign of this incident, that is:
Increase sign different A1 and/or A4 affair;
In different A1 of the sign that increases and/or A4 incident, adjacent sub-district is set and crosses the covering threshold value;
UE carries out different A1 and/or the A4 affairs of sign that increases;
A1 that the sign that UE will increase is different and/or A4 affair result are as the measurement result of adjacent sub-district.
Present embodiment will be introduced the execution mode of newly-increased A1 and/or A4 incident, certainly, also can reuse existing A1 and/or the A4 incident is implemented.
In concrete the enforcement, can be according to engineering experience or simulation result, for being provided with a RS respectively, this sub-district and adjacent sub-district cross the detection threshold value of covering, this sub-district can be crossed the covering thresholding in an embodiment is designated as: Thresh-Serving-Excessive, cross the covering thresholding with adjacent sub-district and be designated as: Thresh-Neighbor-Excessive; When network need detect the RS channel and whether was covering, network was by measuring configuration, measuring measurement and a new A4 incident that control or system message etc. start the new A1 incident of UE; When the signal strength signal intensity of measuring this sub-district or adjacent sub-district as UE satisfies the A1 incident of this new startup or A4 incident, send measurement report to network.After network is received, A1 and the A4 incident of dissecting needle to offering on the specific UE, if in certain time interval, the signal strength signal intensity of this sub-district and adjacent sub-district all is higher than certain thresholding, then is designated as once.Added up other information such as the number of times that covers and positional information, according to certain criterion, as in the certain location zone, number of times surpasses certain thresholding etc., judges finally that also this zone crosses covering for RS; If can not get the positional information of UE, can judge according to the certain criterion of this model specification according to preestablishing a user distribution model.Need to prove, can be for different channel conditions, as dense city, general city, suburbs etc. are provided with different user distribution model, after the criterion that satisfies under this model, are judged as RS and cross covering.
Embodiment five
In concrete the enforcement, UE that can further definite participation is implemented on the basis of embodiment one is the edge customer of sub-district.That is: only edge customer is restarted a new A1 incident and a new A4 incident.
The purpose of present embodiment is, central user for the sub-district, because the signal strength signal intensity of this sub-district is very strong, also can report the A1 incident, but can not report the A4 incident probably, report the A1 incident can compare frequently like this, but these information differ establish a capital useful, therefore waste interface-free resources possibly, therefore, can determine only in the edge customer of sub-district, to adopt.
When the edge customer that determines whether to the sub-district, can pass through ICIC (Inter-Cell Interference Coordinate, Inter-Cell Interference Coordination) or other modes and distinguish edge customer and central user.
Embodiment six
Present embodiment is mainly newly-increased A3 incident, and gives new sign of this incident, that is:
Increase the different A3 affair of sign;
In the different A3 incident of the sign that increases, this sub-district is set and/or the covering threshold value is crossed in adjacent sub-district;
UE carries out the different A3 affair of sign that increases;
The different A3 affair result of the sign that UE will increase is as the measurement result of this sub-district and/or adjacent sub-district.
In concrete the enforcement, the entry condition of A3 incident can be Mn+Ofn+Ocn-Hys>Ms+Ofs+Ocs+Off, some parameters wherein are made as 0, for example, allow Ofn=Ocn=Hys=Ofs=Ocs=0, just can be reduced to Mn>Ms+Off to this condition, a RS is set crosses the detection threshold Off of covering for RS crosses to cover separately then, network can by measure configuration, the methods such as control or system message of measuring dispose above-mentioned parameter to UE and be new A3 incident of UE startup.Judge by this sub-district of this A3 reporting events and the RS signal strength signal intensity of adjacent sub-district at last.The parameter of mentioning among the embodiment is meant respectively:
The measurement result of the adjacent sub-district of Mn=' n ';
The measurement result of Ms=Serving cell ' s ';
The Hys=hysteresis;
The specific deviant in the adjacent sub-district, sub-district ' n ' of Ocn=;
The specific deviant of Ocs=Serving cell ' s ';
The specific deviant of adjacent sub-district ' n ' frequency of Ofn=;
The specific deviant of Ofs=Serving cell ' s ' frequency;
The deviant of Off=A3 incident.
Embodiment seven
The main introduction utilizes the mode of UE LOG in the minimum road test to detect the execution mode that the RS channel is crossed covering in the present embodiment.That is:
The covering of crossing that is provided with under the mode of UE LOG in minimum road test this sub-district and/or adjacent sub-district RS channel detects.
In minimum road test, be provided with under the mode of UE LOG to network side and feed back this sub-district and/or adjacent cell localization information.
Obviously, the scheme that present embodiment adopts both can be used separately, also can adopt simultaneously with embodiment one, two, three, four, five, six etc., and they there is no repugnance.
Fig. 5 is the schematic diagram of coverage detection method implementing procedure excessively of RS channel among the embodiment seven, as shown in the figure, embodiment seven is higher than certain thresholding for adopting this sub-district of UE Log RS signal strength signal intensity, and adjacent sub-district RS signal strength signal intensity is higher than this sub-district and the RS signal strength signal intensity of adjacent sub-district and the execution mode of supplementary thereof of certain thresholding, is specifically carrying out covering when detecting and can comprise the steps:
Step 501, this sub-district is set and/or the covering threshold value is crossed in adjacent sub-district.
According to engineering experience or simulation result, for being provided with a RS respectively, this sub-district and adjacent sub-district cross the detection threshold value of covering, be designated as Thresh-Serving-Excessive, Thresh-Neighbor-Excessive respectively; Can be different scenes, as dense city, general city, different Thresh-Serving-Excessive and/or the Thresh-Neighbor-Excessive of configuration on the suburb or the water surface, translational speed that also can the user is provided with different Thresh-Serving-Excessive and/or Thresh-Neighbor-Excessive.
Step 502, cross relevant parameters such as this sub-district of covering and/or adjacent sub-district threshold value and send to UE detecting the RS channel.
Network is informed this Thresh-Serving-Excessive and/or Thresh-Neighbor-Excessive thresholding to UE by measuring modes such as configuration, measurement control or system message; Perhaps by being thresholding of UE fixed configurations, perhaps take unified in a minimum road test configuration mode, perhaps other modes are informed or are disposed to UE.
Step 503, UE judged when this sub-district and/or adjacent sub-district RS channel were covering, signal strength signal intensity and the supplementary thereof of minute book sub-district and/or adjacent sub-district RS;
The signal strength signal intensity of the Serving cell RS that UE is measured satisfies: Ms>Thresh-Serving-Excessive, and the signal strength signal intensity of the adjacent sub-district RS that UE is measured satisfies: during Mn>Thresh-Neighbor-Excessive, UE record this sub-district RS signal strength signal intensity and adjacent sub-district RS signal strength signal intensity at this moment, and/or the supplementary of this moment, these supplementarys comprise:
(1) if UE has positioning function, the A2 incident can comprise UE positional information or with the supplementary that is used to locate, if UE does not have electronic chart, then need not report geographical problem information such as concrete precision, latitude, can report supplementarys such as time difference as several base stations.
(2) incident stamp etc.
Step 504, the mode by UE LOG in the minimum road test are to the network side reporting orientation information.
UE reported to network after record a period of time, and concrete grammar can be undertaken by the mode of UELOG in the minimum road test.
In concrete the enforcement, can report to network side after UE writes down a period of time, concrete mode can be in minimum road test be carried out under the mode of UE LOG.
Based on same inventive concept, a kind of covering detection system, network equipment, subscriber equipment of RS channel also are provided in the embodiment of the invention, because the principle that these equipment are dealt with problems is similar to the coverage detection method of RS channel, therefore the enforcement of these equipment can repeat part and not give unnecessary details referring to the enforcement of method.
Fig. 6 is the covering detection system structural representation of RS channel, as shown in the figure, covers in the detection system and can comprise:
Network equipment 601 is used to be provided with weak and/or crosses the covering threshold value and be sent to user equipment (UE);
UE602, be used for to the weak of RS channel and/or cross to cover when detecting, obtain measurement result, described measurement result comprises: the lagged value of Serving cell, Reference Signal Received Power RSRP value, or the lagged value of Serving cell, Reference Signal Received Quality RSRQ value, and according to described measurement result and weak and/or cross the covering threshold value and judge whether the RS channel is weak and/or crosses covering.
In the enforcement, UE can be further used for according to described measurement result and weak and/or cross the covering threshold value and judge whether the RS channel is weak and/or during the mistake covering, if the lagged value of Serving cell and RSRP value sum are less than weak covering threshold value, or, the lagged value of Serving cell and RSRQ value sum then are weak covering less than weak covering threshold value; If the difference of the lagged value of Serving cell and RSRP value is greater than mistake covering threshold value, or the difference of the lagged value of Serving cell and RSRQ value then was covering greater than crossing the covering threshold value.
UE can also be further used for obtaining locating information, described locating information comprises: one of time difference information of the positional information of UE, the supplementary that is used to locate, base station or its combination, and after definite channel is weak and/or crosses covering, with locating information feedback network side.
In the enforcement, network equipment can be further used for determining weak and/or the mistake overlay area according to locating information.
In the enforcement, network equipment can also be further used for increasing the different A3 affair of sign;
Under this scheme, UE can also be further used in the different A3 incident of the sign that increases the covering threshold value being set; And behind the different A3 affair of the sign of carrying out increase, the A3 affair results that the sign of increase is different are as measurement result.
Network equipment also can be further used for being provided with under the mode of UE LOG in minimum road test to the weak of RS channel and/or cross to cover and detect.
Under this scheme, UE can also be further used for being provided with under the mode of UE LOG in minimum road test to network side feedback locating information.
In order to realize that the covering of adjacent sub-district is detected, network equipment can be further used for being provided with adjacent sub-district and cross the covering threshold value and be sent to user equipment (UE);
Under this scheme, UE then can be further used for crossing of the RS channel of adjacent sub-district being covered when detecting, obtain the measurement result of adjacent sub-district, the measurement result of described adjacent sub-district comprises: the Reference Signal Received Power RSRP value of the lagged value of adjacent sub-district, adjacent sub-district, or the Reference Signal Received Quality RSRQ value of the lagged value of adjacent sub-district, adjacent sub-district; And according to the measurement result of described adjacent sub-district and cross and cover threshold value and judge whether the RS channel of adjacent sub-district was covering.
Fig. 7 is the network equipment structural representation, as shown in the figure, can comprise in the network equipment:
Threshold setting module 701 is used to be provided with weak and/or mistake covering threshold value;
Sending module 702 is used for sending weak and/or mistake covering threshold value to UE.
Can further include in the network equipment:
Zone determination module 703 is used for determining weak and/or the mistake overlay area according to locating information.
In the enforcement, sending module can be further used for sending the covering threshold value by measuring configuration messages, measurement control messages or system message to UE.
In the enforcement, the threshold setting module can be further used for according to the threshold value of the translational speed of engineering experience or simulation result, UE, A2 incident the weak threshold value that covers being set, and/or, according to engineering experience or simulation result, the translational speed of UE, the threshold value of A1 incident the covering threshold value was set.
The threshold setting module can also be further used for increasing the different A2 affair of sign, and the different A2 incident threshold value of the sign that increases is set to the weak threshold value that covers.
The threshold setting module can be further used in A1 and/or A4 incident the covering threshold value being set.
The threshold setting module can be further used for increasing sign different A1 and/or A4 affair, and in different A1 of the sign that increases and/or A4 incident the covering threshold value is set.
Under this mode, sending module can also be further used for a little less than the UE of Cell Edge User sends and/or cross the covering threshold value;
The threshold setting module can be further used for increasing the different A3 affair of sign, and in the different A3 incident of the sign that increases the covering threshold value is set.
The threshold setting module can be further used for being provided with under the mode of UE LOG in minimum road test to the weak of RS channel and/or cross to cover and detect.
The threshold setting module can be further used for being provided with under the mode of UE LOG in minimum road test to network side feedback locating information.
In the enforcement, the threshold setting module can also be further used for being provided with adjacent sub-district and cross the covering threshold value;
Sending module then can also be used for sending adjacent sub-district to UE and cross the covering threshold value;
Fig. 8 is the user device architecture schematic diagram, as shown in the figure, can comprise among the UE:
Receiver module 801 is used to receive the weak of network side setting and/or crosses the covering threshold value;
Measurement module 802, be used for to the weak of RS channel and/or cross to cover when detecting, obtain measurement result, described measurement result comprises: the lagged value of Serving cell, Reference Signal Received Power RSRP value, or the lagged value of Serving cell, Reference Signal Received Quality RSRQ value;
Judge module 803 is used for according to described measurement result and weak and/or cross the covering threshold value and judge whether the RS channel is weak and/or crosses covering.
In the enforcement, judge module can be further used for according to described measurement result and weak and/or cross the covering threshold value and judge whether the RS channel is weak and/or during the mistake covering, if the lagged value of Serving cell and RSRP value sum are less than weak covering threshold value, or, the lagged value of Serving cell and RSRQ value sum then are weak covering less than weak covering threshold value; If the difference of the lagged value of Serving cell and RSRP value is greater than mistake covering threshold value, or the difference of the lagged value of Serving cell and RSRQ value then was covering greater than crossing the covering threshold value.
In the enforcement, can further include in the subscriber equipment:
Locating module 804 is used to obtain locating information, and described locating information comprises: one of time difference information of the positional information of UE, the supplementary that is used to locate, base station or its combination.
Subscriber equipment can further include:
Feedback module 805 is used for after definite channel is weak and/or crosses covering, with locating information feedback network side.
Feedback module can be further used for by A2 event report message and/or A1 event report message locating information feedback network side.
In the enforcement, receiver module can be further used for by measuring configuration messages, measuring control messages or system message and receive weak and/or cross the covering threshold value.
In the enforcement, measurement module can be further used for A2 incident threshold value and be set to the weak threshold value that covers, and after carrying out the A2 affair with A2 affair result as measurement result.
Measurement module can be further used for before measuring, and A2 incident threshold value is set to the weak threshold value that covers; After obtaining measurement result, the setting of A2 incident threshold value is reverted to normally.
When measurement module can be further used for the different A2 affair of the sign that carry out to increase at need, the different A2 incident threshold value of sign that increases is set to the weak threshold value that covers, and behind the different A2 affair of the sign of carrying out increase, the A2 affair results that the sign of increase is different are as measurement result.
Measurement module can be further used in A1 and/or A4 incident the covering threshold value being set, after carrying out A1 and/or A4 affair, with A1 and/or A4 affair result as measurement result.
When measurement module can be further used for different A1 of the sign that carry out to increase at need and/or A4 affair, in different A1 of the sign that increases and/or A4 incident, the covering threshold value was set, and behind the sign of carrying out increase different A1 and/or A4 affair, A1 that the sign of increase is different and/or A4 affair result are as measurement result.
When measurement module can be further used for the different A3 affair of the sign that carry out to increase at need, in the different A3 incident of the sign that increases, the covering threshold value was set, and was carrying out the different A3 affair result of the sign that will increase behind the different A3 affair of the sign that increases as measurement result.
When measurement module can be further used for the mode of UE LOG in carrying out minimum road test, the weak of RS channel and/or mistake covering are detected.
Under this scheme, when feedback module can be further used for the mode of UE LOG in carrying out minimum road test, to network side feedback locating information.
Detect for adjacent sub-district is realized covering, in the enforcement, receiver module can be further used for receiving the adjacent sub-district of network side setting and cross the covering threshold value;
Measurement module can be further used for crossing of the RS channel of adjacent sub-district being covered when detecting, obtain the measurement result of adjacent sub-district, the measurement result of described adjacent sub-district comprises: the Reference Signal Received Power RSRP value of the lagged value of adjacent sub-district, adjacent sub-district, or the Reference Signal Received Quality RSRQ value of the lagged value of adjacent sub-district, adjacent sub-district;
Judge module can be further used for according to the measurement result of described adjacent sub-district and covering threshold value judges whether the RS channel of adjacent sub-district was covering excessively.
When measurement module can be further used for the mode of UE LOG in carrying out minimum road test, the weak of adjacent sub-district RS channel and/or mistake covering are detected.
When feedback module can be further used for the mode of UE LOG in carrying out minimum road test, feed back adjacent cell localization information to network side.
For the convenience of describing, the each several part of the above device is divided into various modules with function or the unit is described respectively.Certainly, when enforcement is of the present invention, can in same or a plurality of softwares or hardware, realize the function of each module or unit.
In the above-described embodiment, as can be seen:
The scheme of the RS coverage self-optimization that can detect in the embodiment of the invention can be used to detect weak covering of RS and/or RS and cross covering (RS pollution);
In concrete the enforcement, when detecting the RS channel and be weak covering, can adopt following one of them or several technical schemes, as:
(1) operator is when to wish to start the RS channel be weak covering, covers the thresholding that detects a little less than the thresholding of A2 incident is revised as RS, and starts weak covering of RS by the A2 incident and detect; When closing after the RS channel is weak covering, reply the thresholding of normal A2 incident;
(2) start a new A2 incident to cover the thresholding that detects a little less than the RS, covering detected a little less than network side was distinguished normal A2 incident or RS with measurement ID;
(3) covering the thresholding configuration that detects a little less than the RS or being notified to UE, when satisfying thresholding, UE record RS signal strength signal intensity and supplementary thereof at this moment reports network then;
In concrete the enforcement, when detecting the RS channel and be covering (RS pollution), can adopt following one of them or several technical schemes, as:
(1) RS that is disposed respectively with this sub-district and adjacent area crosses the detection threshold value of covering, be designated as Thresh-Serving-Excessive, Thresh-Neighbor-Excessive starts a new A1 incident and an A4 incident, distinguishes normal A1/A4 incident or RS with new measurement ID respectively and crosses to cover and detect;
(2) only edge customer is restarted a new A1 incident and a new A4 incident;
(3) newly start an A3 incident and be used for RS and cross and cover to detect, distinguish normal A3 incident or RS with new measurement ID and cross to cover and detect;
(4) newly-increased one is satisfied simultaneously:
Ms>Thresh-Serving-Excessive; The measurement type of Mn>Thresh-Neighbor-Excessive is used for RS and crosses the covering detection;
(5) adopt this sub-district of UE Log RS signal strength signal intensity to be higher than certain thresholding, and adjacent area RS signal strength signal intensity is higher than the RS signal strength signal intensity and the supplementary thereof of this sub-district and the adjacent area of certain thresholding.
Also introduced the technical scheme of reusing existing A2 incident in the enforcement, during the detection that a little less than needs start the RS channel, covers, the thresholding of A2 has been set to the detection that covers a little less than the RS channel temporarily;
And, reuse existing A2 incident and to the influence of function in order to reduce as switching etc. as far as possible, during the detection that can also a little less than stopping the RS channel, cover, the thresholding of A2 replied be original thresholding.
Especially, for this sub-district RS signal strength signal intensity is higher than certain thresholding Thresh-Serving-Excessive, and when adjacent area RS signal strength signal intensity was higher than certain thresholding Thresh-Neighbor-Excessive, the RS signal strength signal intensity of this sub-district and adjacent area and supplementary thereof were noted earlier in the mode of the UE log (UE record) that 3GPP RAN2 standardized " minimum road test " is at present discussed.
Can be different scenes in the invention process, as dense city, general city, the different Thresh-Weak of configuration on the suburb or the water surface, translational speed that also can the user is provided with different Thresh-Serving-Excessive and/or Thresh-Neighbor-Excessive;
In the enforcement, network specifically can be informed this Thresh-Serving-Excessive and/or Thresh-Neighbor-Excessive thresholding to UE by measuring modes such as configuration, measurement control or system message; Perhaps by being thresholding of UE fixed configurations, perhaps take unified in a minimum road test configuration mode, perhaps other modes are informed or are disposed to UE.
To sum up technical scheme is described, as can be known:
In the network optimization work of mobile communication system, coverage planning be optimized for wherein one of most important work.In the self-optimizing subject under discussion of the SON of 3GPP, it is the groundwork of descending covering that the RS channel covers., at present, the channel coverage self-optimization of RS is not had effective scheme at present yet.But provided by the foregoing description as can be known, the scheme of a RS channel coverage self-optimization in the embodiment of the invention.This scheme both can be used for the coverage self-optimization under the SON, the manual optimization that also can be used for covering.Further, the scheme and the embodiment of the RS coverage self-optimization that the embodiment of the invention provides, can be used as the covering of SON and a candidate scheme in capacity optimization (CCO) standardization, the content that wherein needs the UE record and report, can provide by 3GPP RAN2 standardization, in order to remedy the blank of respective standard.
Because the scheme of the RS coverage self-optimization that provides in the embodiment of the invention is to indicate UE to carry out judgement weak and/or that cover excessively with the threshold value that prior emulation obtains, and locating information reported, thereby can utilize user distribution model or network to determine the position that covering problem occurs, thereby have improved the accuracy of problem detection to a great extent according to these locating information.
The scheme and the embodiment of multiple RS coverage self-optimization have been provided in the embodiment of the invention, for operator and equipment manufacturers provide multiple choices, make operator and equipment manufacturers to select one of them or several to implement according to the actual conditions of concrete equipment and network thereof.
Adopt the scheme and the embodiment that have provided multiple RS coverage self-optimization in the embodiment of the invention, no matter being to carry out in the base station or in UE, all is automatically, does not need artificial participation, greatly reduce the workload of network configuration and optimization, reduced the network operation maintenance cost.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware embodiment, complete software implementation example or in conjunction with the form of the embodiment of software and hardware aspect.And the present invention can adopt the form that goes up the computer program of implementing in one or more computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.
The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out by the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device, make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of carrying out on computer or other programmable devices is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic creative notion of cicada, then can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.