CN106535266B - Base station operation frequency handover method and device - Google Patents

Base station operation frequency handover method and device Download PDF

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Publication number
CN106535266B
CN106535266B CN201611259801.5A CN201611259801A CN106535266B CN 106535266 B CN106535266 B CN 106535266B CN 201611259801 A CN201611259801 A CN 201611259801A CN 106535266 B CN106535266 B CN 106535266B
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signal
noise ratio
frequency point
reference work
working frequency
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CN106535266A (en
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范群安
习益锋
周俊颖
李树春
夏裕坚
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Comba Network Systems Co Ltd
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Comba Telecom Technology Guangzhou Ltd
Comba Telecom Systems China Ltd
Comba Telecom Systems Guangzhou Co Ltd
Tianjin Comba Telecom Systems Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/06—Reselecting a communication resource in the serving access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/20—Performing reselection for specific purposes for optimising the interference level
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data

Abstract

The present invention relates to a kind of base station operation frequency handover method and devices, whether the signal-to-noise ratio by detecting current working frequency is greater than preset threshold to detect whether current working frequency is interfered, when being not more than preset threshold, explanation is interfered, at this time, it needs to switch current working frequency in order to avoid influencing data transmission, and since the bigger signal transmission quality of signal-to-noise ratio is better, when needing to switch current working frequency, the current working frequency of home base stations is switched into signal-to-noise ratio in each network base station and is greater than preset threshold and the maximum working frequency points of signal-to-noise ratio, namely current working frequency is switched to and is not interfered with and working frequency points that signal transmission quality is best, it avoids interfering, so that it is guaranteed that signal transmission quality.

Description

Base station operation frequency handover method and device
Technical field
The present invention relates to fields of communication technology, more particularly to a kind of base station operation frequency handover method and device.
Background technique
With the fast development of mobile intelligent terminal and the sharp increase of wireless user's number, so as to mobile network data Demand it is growing day by day.In order to alleviate the contradiction between growing wireless demand and valuableness and limited authorization frequency spectrum, benefit It is just come into being with the authorization frequency spectrum of exempting from of radio resource relative abundance to solve the technology of the high data volume of mobile network: exempting to authorize LTE-U (LTE Advanced in Unlicensed Spectrums) on carrier wave, is by LTE (Long Term Evolution, long term evolution) it is deployed to and exempts to authorize frequency spectrum, wireless traffic is shunted by exempting to authorize frequency spectrum, alleviates authorization frequency spectrum Wireless network burden.
It is well known that in the field of wireless communication, frequency spectrum resource be it is very deficient, frequency spectrum resource high degree affects The indexs such as the transmission rate throughput of system of wireless communication.However, the frequency spectrum resource that domestic operator grasps is to have very much Time limit valuableness.Currently, the frequency spectrum resource of China Mobile shares 130MHz, China Unicom shares 90MHz, and China Telecom is shared 100MHz, exempt from authorize frequency spectrum resource about 90MHz near 2.4GHz frequency range can be used, 5GHz frequency range nearby there are about 900MHz.It can be seen that abundant and free authorization frequency spectrum resource of exempting from is enough that Domestic Carriers, equipment vendor is driven to go actively to research and develop The relevant technologies and equipment.In networking, the interference (for example, homogeneous-frequency adjacent-domain interference, alien frequencies interference) between base station is always to influence to use One key factor of family experience, many equipment vendors are devoted to reduce the interference between base station to greatest extent, provide for user Higher service quality.Therefore, in the limited situation of authorized spectrum band, how research, which reduces base station operation frequency handover, ten Divide important practical significance.
Currently, the method for reducing or avoiding the interference between base station is generally divided by the time interval resource for using neighboring community Multiple portions, according to each Cell Edge User and central user to the service condition of running time-frequency resource come for each small Division when Frequency resource is each small zoning running time-frequency resource to reduce the interference between base station.Or the interference information by transmitting minizone is to each A cell provides dry between effective Microcell then according to the design feature of the wireless access network of distributed base station composition Disturb coordination approach.The above method carries out universal time coordinated to the interference of minizone, if number of users is relatively more, power system capacity and wireless money When the anxiety of source, although taking the measure of interference coordination, coordinative role is little, i.e., cannot reduce interference well.
Summary of the invention
Based on this, it is necessary to for reduce the unconspicuous problem of interference effect, it is necessary to provide it is a kind of can effectively reduce it is dry The base station operation frequency handover method and device disturbed.
A kind of base station operation frequency handover method, comprising the following steps:
Obtain the signal-to-noise ratio of the current working frequency of home base stations；
Whether the signal-to-noise ratio for detecting the current working frequency is greater than preset threshold；
If it is not, obtain in wireless network environment where the home base stations working frequency points of each network base station and with it is described The corresponding signal-to-noise ratio of working frequency points；
The current working frequency of the home base stations is switched into signal-to-noise ratio in each network base station and is greater than described preset Threshold value and the maximum working frequency points of signal-to-noise ratio.
The present invention also provides a kind of base station operation frequency handover devices, comprising:
First obtains module, the signal-to-noise ratio of the current working frequency for obtaining home base stations；
Whether detection module, the signal-to-noise ratio for detecting the current working frequency are greater than preset threshold；
Second obtains module, for when the testing result of the detection module is no, obtaining the home base stations place The working frequency points of each network base station and signal-to-noise ratio corresponding with the working frequency points in wireless network environment；
Switching module, for the current working frequency of the home base stations to be switched to signal-to-noise ratio in each network base station Greater than the preset threshold and the maximum working frequency points of signal-to-noise ratio.
Above-mentioned base station operation frequency handover method and device, it is pre- whether the signal-to-noise ratio by detecting current working frequency is greater than If threshold value detects whether current working frequency is interfered, when being not more than preset threshold, explanation is interfered, at this point, needing Current working frequency is switched in order to avoid influencing data transmission, and since the bigger signal transmission quality of signal-to-noise ratio is better, need to cut When changing current working frequency, the current working frequency of home base stations is switched into signal-to-noise ratio in each network base station and is greater than preset threshold And the maximum working frequency points of signal-to-noise ratio, that is, current working frequency switched to and is not interfered with and signal transmission quality is best Working frequency points avoid interfering, so that it is guaranteed that signal transmission quality.
Detailed description of the invention
Fig. 1 is schematic network structure；
Fig. 2 is the flow chart of the base station operation frequency handover method of an embodiment；
Fig. 3 is the flow chart of the base station operation frequency handover method of another embodiment；
Fig. 4 is to be greater than signal-to-noise ratio in each reference work frequency point in advance in the base station operation frequency handover method of another embodiment If threshold value and sub-process figure the step of the maximum working frequency points of signal-to-noise ratio are as target operation frequency point；
Fig. 5 is to obtain the T reference work frequency point of access in the base station operation frequency handover method of another embodiment to correspond to Network base station user side of the user equipment under the T reference work frequency point comprehensive signal-to-noise ratio the step of submodule figure；
Fig. 6 is the module map of the base station operation frequency handover device of an embodiment；
Fig. 7 is the module map of the base station operation frequency handover device of another embodiment；
Fig. 8 is the submodule that the comprehensive signal-to-noise ratio of user side obtains module in the base station operation frequency handover device of another embodiment Block figure；
Fig. 9 is the submodule that the comprehensive signal-to-noise ratio of user side obtains module in the base station operation frequency handover device of another embodiment Block figure.
Specific embodiment
Referring to Fig. 1, being network architecture schematic diagram, being included in user equipment, (UE measures wireless signal and turns Hair) and base station (eNB is responsible for signal processing and resource management), X2 connection (is connect between base station by X2 between base station and base station Mouthful connection, formed mesh network), can direct information transmitting, user equipment by base station progress information transmitting, pass through MME (Mobility Management Entity, mobility management entity) handles the signaling between user equipment and core network Many user equipmenies are often accessed in interaction, a base station, and a base station can have multiple cells, and (Cell is responsible for small under base station The signal processing in area and resource management), a sector can also have multiple cells.
Referring to Fig. 2, providing a kind of base station operation frequency handover method of embodiment, comprising the following steps:
S210: the signal-to-noise ratio of the current working frequency of home base stations is obtained.
Each base station is corresponding with the working frequency points of itself, and base station obtains home base stations in carrying out working frequency points switching Current working frequency signal-to-noise ratio, be obtain base station itself current working frequency signal-to-noise ratio, a base station can have Multiple cells, when user equipment is in the corresponding cell in base station, user equipment can be communicated by the base station with the external world. However, the working frequency points of base station are possible to be caused forwarding speed to wait as a result, in order to detect working frequency points slowly by extraneous interference Whether it is interfered, can be judged by the signal-to-noise ratio of working frequency points, the bigger expression interference of signal-to-noise ratio is smaller, thus, it is first First need to obtain the signal-to-noise ratio of the current working frequency of home base stations.
S220: whether the signal-to-noise ratio for detecting current working frequency is greater than preset threshold.
By detect current working frequency signal-to-noise ratio whether be greater than preset threshold judge current working frequency whether by To interference, that is to say, that current working frequency Interference Detection is carried out, if more than indicating that the signal-to-noise ratio of current working frequency reaches Preset requirement, it is believed that it is not interfered, if being not more than, indicates that the signal-to-noise ratio of current working frequency does not reach default and wants It asks, it is believed that it is interfered.Specifically, cycle timer is opened, Interference Detection periodically is carried out to current working frequency, i.e., It is spaced preset time, whether the signal-to-noise ratio for detecting current working frequency is greater than preset threshold.In addition, in above-mentioned detection work at present Whether the signal-to-noise ratio of frequency point is greater than before the step S220 of preset threshold, is just provided with preset threshold, then detects work at present frequency Whether the signal-to-noise ratio of point is greater than preset threshold.
When the signal-to-noise ratio of current working frequency be not more than preset threshold when, that is to say, that detect current working frequency by Interference, needs to switch over current working frequency, then executes following steps:
S230: the working frequency points and and working frequency points of each network base station in the wireless network environment of home base stations place are obtained Corresponding signal-to-noise ratio.
That is, needing the working frequency points to home base stations when the current working frequency of home base stations is interfered Switch over, so as not to influence data transmission, i.e., where home base stations in wireless network environment each network base station working frequency points The target operation frequency point that the middle suitable working frequency points of inquiry switch as home base stations, then needing to obtain nothing where home base stations The working frequency points of each network base station and corresponding signal-to-noise ratio in line network environment.When due to switch operating frequency point, in order to avoid Working frequency points after switching are not interfered, and the signal-to-noise ratio to the working frequency points of network base station is needed to detect, selection Suitable working frequency points switch the working frequency points of selection as home base stations.
S240: the current working frequency of home base stations is switched into signal-to-noise ratio in each network base station and is greater than preset threshold and letter It makes an uproar than maximum working frequency points.
In order to which the working frequency points after home base stations switching are interference-free, since signal-to-noise ratio is greater than the working frequency points of preset threshold Expression is not interfered, and working frequency points expression of the signal-to-noise ratio no more than preset threshold is interfered.The bigger expression letter of signal-to-noise ratio Number transmission quality is better, so that the current working frequency of home base stations, which is switched to signal-to-noise ratio in each network base station, is greater than default threshold Value and the maximum working frequency points of signal-to-noise ratio, that is, the current working frequency of home base stations is switched in wireless network environment most Good working frequency points, it is ensured that the signal transmission quality after home base stations switch operating frequency point.
Whether above-mentioned base station operation frequency handover method, the signal-to-noise ratio by detecting current working frequency are greater than preset threshold Detect whether current working frequency is interfered, explanation is interfered when being not more than preset threshold, at this time, it may be necessary to will work as Preceding working frequency points switching is transmitted in order to avoid influencing data, and since the bigger signal transmission quality of signal-to-noise ratio is better, needs to switch current When working frequency points, the current working frequency of home base stations is switched into signal-to-noise ratio in each network base station and is greater than preset threshold and noise Than maximum working frequency points, that is, current working frequency switched to and is not interfered with and work frequency that signal transmission quality is best Point avoids interfering, so that it is guaranteed that signal transmission quality.
Specifically, local when home base stations electrifying startup before the signal-to-noise ratio for obtaining the current working frequency of home base stations Base station itself can open listening functions, listen to the wireless network environment where it, that is, listen to the machine base station place The working frequency points of network base station in wireless network environment, successively to it is initial when the working frequency points of network base station that listen to examine Survey and calculate the initial signal-to-noise ratio of the working frequency points of each network base station, that is, obtain each network base station working frequency points just Beginning signal-to-noise ratio is selected from the working frequency points of each network base station by the working frequency points of the maximum corresponding network base station of initial signal-to-noise ratio Current working frequency as home base stations, that is to say, that home base stations work under the initial current working frequency.With logical Letter carries out, and the signal-to-noise ratio of the current working frequency of home base stations may change, that is to say, that communication quality will receive shadow It rings, needs to carry out working frequency points Interference Detection, that is to say, that by the working frequency points of the maximum corresponding network base station of initial signal-to-noise ratio After the current working frequency of home base stations, it is also necessary to periodically carry out interference inspection to the current working frequency of home base stations It surveys, prevents the case where continuing to use the working frequency points after current working frequency is heavily disturbed, in order to avoid normal communication is influenced, i.e., By periodically acquiring the signal-to-noise ratio of the current working frequency of home base stations, when the signal-to-noise ratio of the current working frequency of home base stations When less than preset threshold, also means that the current working frequency of home base stations receives interference, need to switch it to.
In the present embodiment, it before whether the signal-to-noise ratio of detection current working frequency is greater than preset threshold, also initializes Parameter K is 1；When detecting the signal-to-noise ratio of current working frequency no more than preset threshold, judge whether parameter K is greater than 1, if It is no, then illustrate that K is 1, at this point, K is added 1, and improves the radio-frequency power of home base stations, and return to the current work for obtaining home base stations The step of making the signal-to-noise ratio of frequency point obtains current working frequency again, and whether the signal-to-noise ratio for detecting current working frequency again is big In preset threshold, if detect the signal-to-noise ratio of current working frequency again no more than preset threshold, then judge whether parameter K is big In 1, at this point, K has increased 1, i.e. K is greater than 1, has detected that the primary current working frequency is pre- no more than signal-to-noise ratio before illustrating If threshold value, at this point, no longer carrying out the raising of radio-frequency power, each net in wireless network environment is directly entered where obtaining home base stations The step of working frequency points of network base station and signal-to-noise ratio corresponding with working frequency points, to carry out subsequent frequency handover step. That is in the present embodiment, only providing the chance of the primary radio-frequency power for improving home base stations, properly increasing power to improve Signal transmission quality makes current working frequency interference-free as far as possible, avoids the switching of current working frequency, if detected again The current working frequency is still interfered, then no longer carrying out radio-frequency power raising, is directly entered subsequent step and works Frequency handover.
In addition, the signal-to-noise ratio of detection current working frequency also needs the chain of detection home base stations no more than after preset threshold (it is to re-establish number as caused by handover failure within the unit time to re-establish with caused by other parts reason to road reconstruction rate The sum of number and the ratio for re-establishing number of success) whether meet the first preset condition and RRC (Radio Resource Control, wireless heterogeneous networks) connecting into power, (number of success and RRC that RRC connection is established within the unit time, which are established, to be connected The ratio of the total degree connect) whether meet the second preset condition, if being all satisfied, enter wireless network where obtaining home base stations The working frequency points of each network base station and signal-to-noise ratio step corresponding with working frequency points in environment.
Referring to Fig. 3, the current working frequency of home base stations is switched to each network base station in one of the embodiments, Middle signal-to-noise ratio is greater than the step of preset threshold and signal-to-noise ratio maximum working frequency points and includes:
S341: the working frequency points of each network base station are ranked up according to predetermined order rule.
Since signal-to-noise ratio is related with signal transmission quality, then in order in the working frequency points of each network base station more When working frequency points after selecting current working frequency to switch well, to the working frequency points of each network base station according to predetermined order rule It is ranked up, is more efficiently selected so as to subsequent.In subsequently selected target operation frequency point, signal-to-noise ratio is the bigger the better, that is, It says, after sequence, convenient for the selection to working frequency points.Specifically, predetermined order rule can be the signal-to-noise ratio rule of sequence from big to small Then, before the biggish working frequency points of such signal-to-noise ratio come, from the most preceding working frequency points of the working frequency points after sequence to last Working frequency points are detected one by one.It is appreciated that predetermined order rule can be also signal-to-noise ratio putting in order from small to large, noise It, in this way can be from the last working frequency points of the working frequency points after sequence to most preceding work frequency before smaller working frequency points come Point is checked one by one.
S343: the reference work different from current working frequency frequency in the working frequency points of the network base station after obtaining sequence Point.
Can inevitably there are working frequency points identical with current working frequency in the working frequency points of each network base station, that is, Say, in wireless network environment, the working frequency points of base station can be it is identical, due to home base stations current working frequency by The needs that are detected as being interfered have switched, and in handoff procedure, need to exclude working frequency points identical with current working frequency, In order to avoid reducing the work of subsequently selected target operation frequency point in this way as the working frequency points after subsequent switching with current frequency point are It measures, improves switch speed.Due to being frequency point identical as current working frequency in the working frequency points to the network base station after sequence It is rejected, the reference work frequency point different from current working frequency is also to press in the working frequency points of the network base station after sequence It is regularly arranged according to predetermined order.
S345: signal-to-noise ratio in each reference work frequency point is greater than preset threshold and the maximum working frequency points of signal-to-noise ratio as mesh Mark working frequency points.
S347: the current working frequency of home base stations is switched into target operation frequency point.
Working frequency points identical with current working frequency in the working frequency points of each network base station are excluded to obtain reference work After frequency point, suitable target operation frequency point is selected in reference work frequency point, that is, by signal-to-noise ratio in each reference work frequency point Greater than preset threshold and the maximum working frequency points of signal-to-noise ratio are as target operation frequency point, to ensure that the signal of target operation frequency point passes Transmission quality and ensure target operation frequency point be it is interference-free, current working frequency is switched into target operation frequency point, not only It is avoided that interference, moreover it is possible to ensure communication quality.It is appreciated that working as signal-to-noise ratio in each reference work frequency point is greater than preset threshold and letter It makes an uproar when having multiple than maximum working frequency points, it can be from wherein arbitrarily choosing the maximum working frequency points of signal-to-noise ratio as target work Make frequency point.
Referring to Fig. 4, the predetermined order rule is the sequence rule of signal-to-noise ratio from big to small in one of the embodiments, Then.That is, the working frequency points after sequence be according to signal-to-noise ratio from big to small tactic, reference work frequency point be from The working frequency points selection of network base station after sequence, then reference work frequency point is also to sort from large to small according to signal-to-noise ratio 's.
In the present embodiment, signal-to-noise ratio in reference work frequency point is greater than preset threshold and the maximum working frequency points of signal-to-noise ratio Include: as the step of target operation frequency point
S401: count initialized parameter T is 1.
The initialization one count parameter T for being counted is 1, from the reference work sorted from large to small according to signal-to-noise ratio When making to obtain the 1st reference work frequency point in frequency point, acquisition is the 1st reference work frequency point in each reference work frequency point, It is also the maximum reference work frequency point of signal-to-noise ratio.I.e. due to before to the working frequency points of network base station according to signal-to-noise ratio from big to small Sequence sorted, thus in the working frequency points of the network base station after sequence with current working frequency exclude after reference Working frequency points be also it is tactic according to from big to small, so that the 1st reference work frequency point is each reference work frequency point The middle maximum working frequency points of signal-to-noise ratio, that is to say, that according to signal-to-noise ratio sequence from big to small one by one to each reference work frequency point It is detected, once current working frequency can be switched by getting the reference work frequency point met the requirements.
S402: judge whether count parameter T is less than or equal to the number of reference work frequency point.
When carrying out Interference Detection one by one to reference work frequency point according to the size of signal-to-noise ratio, when count parameter T is greater than ginseng The number of working frequency points is examined, that is, indicates to have detected all reference work frequency points to finish, when count parameter T is less than or equal to The number of reference work frequency point, that is, indicate that reference work frequency point does not detect and finish, it needs to continue to obtain the T reference work Frequency point is simultaneously detected.
That is, executing following steps when count parameter T is less than or equal to the quantity of reference work frequency point:
S403: judge whether the signal-to-noise ratio of the T reference work frequency point is greater than preset threshold.
Ordering reference work frequency point has been got before, when count parameter T is less than or equal to reference work frequency point Number when, it is also necessary to Interference Detection is carried out according to the signal-to-noise ratio of the T reference work frequency point, i.e., from each reference work frequency point The T reference work frequency point and corresponding signal-to-noise ratio are obtained, if the signal-to-noise ratio of the T reference work frequency point does not meet signal-to-noise ratio It is required that not meeting greater than preset threshold, sorted from large to small due to reference work frequency point according to signal-to-noise ratio, T refer to work Make the signal-to-noise ratio of frequency point no more than preset threshold, then with the increase of T, behind all reference work frequency point signal-to-noise ratio all Will not be bigger than preset threshold, at this point, using the maximum working frequency points of signal-to-noise ratio in each reference work frequency point as target operation frequency point, Or using signal-to-noise ratio maximum in each reference work frequency point and it is greater than the reference work frequency point of current working frequency as target operation Frequency point, if there is no the reference work frequency points greater than current working frequency in each reference work frequency point, without switching.
When the signal-to-noise ratio of the T reference work frequency point is greater than preset threshold, then following steps are executed.
S404: the user equipment of the corresponding network base station of the T reference work frequency point of access is obtained in the T reference work The comprehensive signal-to-noise ratio of user side under frequency point.
When the signal-to-noise ratio of the T reference work frequency point is greater than preset threshold, tentatively indicate that the T reference work frequency point does not have It is interfered, in order to further ensure that whether it is interfered, also needs to the access corresponding net of the T reference work frequency point The comprehensive signal-to-noise ratio of user side of the user equipment of network base station under the T reference work frequency point, in order to detected The T reference work frequency point carries out the measurement of user equipment side, i.e. the corresponding network base of the T reference work frequency point of measurement access Communication quality situation of the user equipment stood under the reference work frequency point.Specifically, the T reference work is accessed by obtaining The comprehensive signal-to-noise ratio of user side of the user equipment of the corresponding network base station of frequency point under the T reference work frequency point you can learn that with Communication quality of the family equipment under the reference work frequency point, the comprehensive signal-to-noise ratio of user side is bigger, indicates that communication quality is better, also It is to say, not only carries out the signal-to-noise ratio detection of the T reference work frequency point, also carries out the comprehensive noise of user side for being included in network base station The detection of ratio, the target operation frequency point of such final choice can further avoid interfering.
S405: judge whether the comprehensive signal-to-noise ratio of user side is greater than pre-set user side noise threshold value.
When the comprehensive signal-to-noise ratio of user side is greater than pre-set user side noise threshold value, indicate under the T reference work frequency point The comprehensive signal-to-noise ratio of user side meets preset requirement, that is to say, that can further indicate that the T reference work frequency point is not affected by Interference, executes following steps at this time.
S406: according to the signal-to-noise ratio and the comprehensive signal-to-noise ratio of user side of the T reference work frequency point, the T reference is obtained The corresponding comprehensive signal-to-noise ratio of working frequency points.
After the comprehensive signal-to-noise ratio of the signal-to-noise ratio and user side of T reference work frequency point is all satisfied corresponding requirement, i.e. T When the signal-to-noise ratio of a reference work frequency point is greater than preset threshold and the comprehensive signal-to-noise ratio of user side greater than pre-set user side noise threshold value, In order to further ensure the T reference work frequency point be it is undisturbed, also need the signal-to-noise ratio according to the T reference work frequency point And the comprehensive signal-to-noise ratio of user side, obtain the corresponding comprehensive signal-to-noise ratio of the T reference work frequency point, the comprehensive bigger expression of signal-to-noise ratio It is disturbed smaller.Specifically, the signal-to-noise ratio of reference work frequency point is corresponding with the first weight and the comprehensive signal-to-noise ratio of user side is corresponding There is the second weight, according to the first weight and the second weight, to the signal-to-noise ratio and user side synthesis of the T reference work frequency point Signal-to-noise ratio is weighted addition and obtains the corresponding comprehensive signal-to-noise ratio of the T reference work frequency point.In addition, judging that user side is comprehensive Whether signal-to-noise ratio was greater than before the step of pre-set user side noise threshold value, it is necessary to set to pre-set user side noise threshold value It sets, it is subsequent directly by the comprehensive signal-to-noise ratio of user side and pre-set user side noise threshold value comparison.
S407: judge whether comprehensive signal-to-noise ratio is greater than preset comprehensive threshold value.
When comprehensive signal-to-noise ratio is greater than preset comprehensive threshold value, the T reference work frequency point of confirmation is examined by above-mentioned interference Result is undisturbed after survey, executes step following steps at this time.
S408: using the corresponding the T reference work frequency point of comprehensive signal-to-noise ratio as target operation frequency point.
When comprehensive signal-to-noise ratio is not more than preset comprehensive threshold value, indicate the T reference work frequency point passed through signal-to-noise ratio with And the detection of the comprehensive signal-to-noise ratio of user, it is believed that it is not disturbed, but by being unsatisfactory for requiring when the detection of comprehensive signal-to-noise ratio, i.e., Comprehensive signal-to-noise ratio is not more than preset comprehensive threshold value, i.e., result is to be disturbed after Interference Detection, executes following steps at this time.
S409: adding 1 for count parameter T, and returns to for judging whether count parameter T is less than or equal to reference work frequency point Number.
That is above-mentioned requirements are unsatisfactory for by detection in the T reference work frequency point, then T are added 1, and return to judgement Whether count parameter T is less than or equal to the step of number of reference work frequency point, to carry out the dry of next reference work frequency point Disturb detection.
That is, during selection target working frequency points, be by reference work frequency point according to signal-to-noise ratio from big It is checked one by one to small sequence, selecting signal-to-noise ratio to be greater than from reference work frequency point, preset threshold, signal-to-noise ratio are maximum, user side is comprehensive Close the reference work frequency point conduct that signal-to-noise ratio is greater than pre-set user side noise threshold value and comprehensive signal-to-noise ratio is greater than preset comprehensive threshold value Target operation frequency point.In addition, before judging the step of whether comprehensive signal-to-noise ratio is greater than preset comprehensive threshold value, it is necessary to default Composite thresholds are configured, subsequent direct by comprehensive signal-to-noise ratio and preset comprehensive threshold value comparison.
Above-mentioned base station operation frequency handover method in one of the embodiments, further comprises the steps of:
When the signal-to-noise ratio of the T reference work frequency point is not more than preset threshold, S410 is executed: by each reference work frequency point The middle maximum working frequency points of signal-to-noise ratio are as target operation frequency point.
Alternatively, executing step when the signal-to-noise ratio of the T reference work frequency point is not more than preset threshold: detecting each reference Be greater than the reference work frequency point of current working frequency in working frequency points with the presence or absence of signal-to-noise ratio, and if it exists, by signal-to-noise ratio it is maximum and Signal-to-noise ratio is greater than the reference work frequency point of current working frequency as target operation frequency point, and if it does not exist, current working frequency is not Switching.
Ordering reference work frequency point has been got before, and the signal-to-noise ratio of the T reference work frequency point is no more than pre- If threshold value, then with the increase of T, behind the signal-to-noise ratio of all reference work frequency point all will not be bigger than preset threshold, at this point, Can using the maximum working frequency points of signal-to-noise ratio in each reference work frequency point as target operation frequency point, can also according to work at present frequency The comparison of point, decides whether to switch, i.e., when there are the reference works that signal-to-noise ratio is greater than current working frequency in reference work frequency point When frequency point, signal-to-noise ratio is maximum and signal-to-noise ratio is greater than the reference work frequency point of current working frequency as target operation frequency point.
Above-mentioned base station operation frequency handover method is further comprised the steps of: when count parameter T is greater than the number of reference work frequency point When, execute step S410: using the corresponding reference work frequency point of maximum signal to noise ratio in each reference work frequency point as target operation frequency Point.
When count parameter T is greater than the number of reference work frequency point, that is to say, that bright to be greater than preset threshold feelings in signal-to-noise ratio Under condition, the comprehensive signal-to-noise ratio of user side is not met in all reference work frequency points and is greater than pre-set user side noise threshold value and comprehensive letter It makes an uproar than the reference work frequency point for being greater than preset comprehensive threshold value, that is to say, that all received in the working frequency points of each network base station dry It disturbs, since the bigger signal transmission quality of signal-to-noise ratio is better, the current working frequency of home base stations is just switched into signal-to-noise ratio maximum Working frequency points.
Alternatively, executing step when count parameter T is greater than the number of reference work frequency point: detecting each reference work frequency point In be greater than the reference work frequency point of current working frequency with the presence or absence of signal-to-noise ratio, and if it exists, it is signal-to-noise ratio is maximum and signal-to-noise ratio is big In current working frequency reference work frequency point as target operation frequency point, if it does not exist, current working frequency does not switch.
It is appreciated that if the signal-to-noise ratio of current working frequency has been maximum compared with the signal-to-noise ratio of each reference work frequency point , also mean that current working frequency be it is best, then without switching.
In the present embodiment, when the comprehensive signal-to-noise ratio of user side is not more than pre-set user side noise threshold value, step is executed S409: count parameter T is added 1, and returns to the step for the number for judging whether count parameter T is less than or equal to reference work frequency point Suddenly.
It is comprehensive to user side to believe due to when signal-to-noise ratio is greater than preset threshold, can just go to obtain the comprehensive signal-to-noise ratio of user side Make an uproar than with pre-set user side noise threshold value comparison, when the comprehensive signal-to-noise ratio of user side is not more than pre-set user side noise threshold value, table Show that the signal-to-noise ratio of the reference work frequency point is met the requirements, but the comprehensive signal-to-noise ratio of user side is undesirable, at this point, T is added 1, continue the detection of next reference work frequency point.
That is, signal-to-noise ratio is main factor, in the T reference work frequency point when carrying out working frequency points switching Signal-to-noise ratio meet the requirements when being greater than preset threshold, continue to test the comprehensive signal-to-noise ratio of user side, the comprehensive signal-to-noise ratio of user side is full When foot requires to be greater than pre-set user side noise threshold value, comprehensive signal-to-noise ratio is continued to test, comprehensive signal-to-noise ratio, which is met the requirements, to be greater than When comprehensive signal-to-noise ratio, illustrate the comprehensive signal-to-noise ratio of the signal-to-noise ratio of the T reference work frequency point, user side and comprehensive signal-to-noise ratio three It all meets the requirements, and signal-to-noise ratio is come according to descending order, it can by the corresponding reference work frequency of the T signal-to-noise ratio Point is used as target operation frequency point.
For example, please refer to table 1, parameter include the corresponding signal-to-noise ratio of reference work frequency point, the comprehensive signal-to-noise ratio of user side and Comprehensive signal-to-noise ratio.T first is initialized as 1, i.e., detects to the 1st reference work frequency point, the letter of the 1st reference work frequency point It makes an uproar and is greater than preset threshold 2 than 5, continue to test the comprehensive signal-to-noise ratio of user of the 1st reference work frequency point, the 1st refers to work The comprehensive signal-to-noise ratio 4 of user for making frequency point is greater than pre-set user side signal-to-noise ratio 3, continues to test the comprehensive of the 1st reference work frequency point Signal-to-noise ratio is closed, but the synthesis signal-to-noise ratio 3.8 of the 1st reference work frequency point is less than composite thresholds 4, that is, indicates the 1st ginseng Examine the synthesis signal-to-noise ratio of working frequency points be it is undesirable, then add 1, T to be updated to 2 T, detect the 2nd reference work frequency point Signal-to-noise ratio, the signal-to-noise ratio 4 of the 2nd reference work frequency point is greater than 2, but the user of the 2nd reference work frequency point is comprehensive Signal-to-noise ratio 2.8 is less than 3, detects comprehensive signal-to-noise ratio without being further continued for, and directly adds T again 1 to be updated to the 3, the 3rd with reference to work The signal-to-noise ratio 3 for making frequency point is greater than the corresponding user side of the 2, the 3rd reference work frequency point comprehensive signal-to-noise ratio 3.5 greater than 3, the The corresponding comprehensive signal-to-noise ratio 4.2 of 3 reference work frequency points is greater than 4, illustrates that the 3rd corresponding parameter of reference work frequency point all accords with It closes and requires, and signal-to-noise ratio 3 is the largest in the signal-to-noise ratio for meeting the reference work frequency point that above-mentioned three requires, to just select The 3rd reference work frequency point is selected as target operation frequency point.Even if the parameter of subsequent 4th reference work frequency point all conforms to Ask, but its signal-to-noise ratio is according to from big to small, before the 3rd reference work frequency point met the requirements, and the 3rd refers to work The signal-to-noise ratio for making frequency point is big, no longer continues having detected for reference work frequency point down.
1 reference work frequency point comparing result of table
In addition, illustrating the T reference work frequency when the signal-to-noise ratio of the T reference work frequency point is not more than preset threshold Do not meet the reference work frequency point of above three requirement before point, so that the T current reference work frequency point is detected, And the signal-to-noise ratio of the T reference work frequency point is also not more than preset threshold, since signal-to-noise ratio is from big to small tactic, It is then subsequent to be no more than preset threshold certainly, illustrate not meet above three condition, at this point, can be by maximum conduct Target operation frequency point selects compared with current working frequency.In addition, when count parameter T is greater than the number of reference work frequency point When, indicate the signal-to-noise ratio for detecting last working frequency points, the signal-to-noise ratio detected before illustrating is satisfactory, but is not had Have while meeting above three requirement, it similarly, can be by maximum as target operation frequency point or compared with current working frequency It selects.That is or until detecting that meeting above three requires corresponding reference work frequency point as target operation Frequency point or can not find three and require all to meet, then by it is maximum as target operation frequency point or with current working frequency ratio Relatively select.
Referring to Fig. 5, obtaining the corresponding network base station of the T reference work frequency point of access in one of the embodiments, The step S404 of the comprehensive signal-to-noise ratio of user side of the user equipment under the T reference work frequency point include:
S5041: the user equipment sending measuring configuration to the corresponding network base station of the T reference work frequency point of access.
Wherein, measuring configuration is the measuring configuration based on A4 trigger event for the T reference work frequency point.Measurement is matched Set object, cell list, report manner, measurement mark and event argument including needing to measure.That is to say, in the present embodiment In, event argument is A4 trigger event, and when A4 trigger event is that the working frequency points of neighbor cell are greater than a threshold value, triggering is used Family equipment reporting measurement reports.
S5042: the first user equipment for measuring in user equipment according to measuring configuration and sending measurement report is obtained And the second user equipment of not sent measurement report.
S5043: according to the measurement report received, it is corresponding under the T reference work frequency point to obtain the first user equipment The first signal-to-noise ratio of user side.
S5044: using default snr threshold as the user equipment of not sent measurement report in the T reference work frequency point Under the second signal-to-noise ratio of user side.
S5045: according to the second signal-to-noise ratio of the first signal-to-noise ratio of user side and user side, the comprehensive signal-to-noise ratio of user side is obtained.
When the signal-to-noise ratio of the T reference work frequency point is greater than preset threshold, also need to obtain the comprehensive signal-to-noise ratio of user side, it is right The comprehensive signal-to-noise ratio of user side is judged.Specifically, pass through the institute to the corresponding network base station of the T reference work frequency point of access There is user equipment to issue the measuring configuration based on A4 event for the T reference work frequency point, since measuring configuration is to be based on A4 event, user equipment carries out measurement of communication quality after receiving measuring configuration, after measurement, if the result of measurement meets The trigger condition of A4 event then can get corresponding measurement report and measurement report returned to network base station, if the knot of measurement Fruit is unsatisfactory for the trigger condition of A4 event, then not reporting measurement reports, for the first user equipment for having return measurement to report, net It is corresponding that network base station obtains the first user equipment when receiving the measurement report of the first user equipment return, according to measurement report The first signal-to-noise ratio of user side, for the second user equipment of no return measurement report, using default snr threshold as second Corresponding the second signal-to-noise ratio of user side of user equipment.Wherein, the result of measurement includes Reference Signal Received Power and reference signal Quality of reception etc., when reporting measurement report by user equipment, the result that measurement report carries these measurements is reported to home base stations.
There are many user equipment possibility for accessing the corresponding network base station of the T reference work frequency point, needs to each use Family equipment sends measuring configuration, and the first user equipment for having return measurement to report is corresponding with the first signal-to-noise ratio of user side, does not return The second user equipment for returning measurement report is corresponding with the second signal-to-noise ratio of user side, thus according to corresponding first user of user equipment The second signal-to-noise ratio of the first signal-to-noise ratio of side and user side, can obtain the comprehensive signal-to-noise ratio of user side, and the comprehensive signal-to-noise ratio of user side is For the signal-to-noise ratio result of all user equipmenies.
Specifically, due to there are many user equipment possibility of the corresponding network base station of the T reference work frequency point of access, institute To need to carry out these user equipmenies even group-division, the number of user equipment to ensure each group is identical or difference is smaller, so After be spaced the predetermined time, issue survey to each group user equipment of the corresponding network base station of the T reference work frequency point of access respectively Amount configuration.Wherein, when grouping, according to different-frequency measure Gap, packet count N is obtained by floor (Gap/6) budget, floor be to Lower bracket function, floor (Gap/6) take the maximum integer no more than Gap/6, the user equipment of access are divided into N group, together When, measurement is gulped down in order to ensure BTS service, the deviant of different measurement detections can be distributed each group user equipment (gapoffset), to ensure the stability of BTS service, sending measuring can be spaced the predetermined time when configuring, issue survey to each group Amount configuration.
In sending measuring configuration, need to construct measurement object, that is, the working frequency points measured then need first to detect the measurement Whether whether object, that is, working frequency points include the working frequency points in the neighboring community of the cell of home base stations, if including, The measuring configuration for directly using the working frequency points, saves the process of building measurement object, if not including, is individually for work frequency Point building measurement object.After user equipment carries out measurement of communication quality according to measuring configuration, user equipment does not have in order to prevent There is the completing to delete measuring configuration of the task and the current working frequency of home base stations the case where having switched, it is final obtaining Synthesis signal-to-noise ratio before, user equipment first deletes measuring configuration, when user equipment measuring configuration delete after the completion of carry out again The handover operation of current working frequency.
Home base stations can calculate the first signal-to-noise ratio of user side according to the measurement report of the first user equipment to report, if user Equipment does not have reporting measurement reports, i.e. second user equipment does not have reporting measurement reports, then defaults the letter of second user equipment Making an uproar than value is default snr threshold, it is believed that the measurement result of second user equipment is not interfered.Then, useful according to institute Equipment corresponding user side signal-to-noise ratio in family obtains user that is, according to the second signal-to-noise ratio of the first signal-to-noise ratio of user side and user side Side integrates signal-to-noise ratio, and the comprehensive signal-to-noise ratio of user side is compared with pre-set user side noise threshold value and judges corresponding reference work Whether frequency point is interfered in user equipment.If being interfered, the Interference Detection of next reference frequency point is carried out, if not by dry It disturbs, then according to the signal-to-noise ratio of reference work frequency point and the comprehensive signal-to-noise ratio of user side, obtains the corresponding synthesis of reference work frequency point Signal-to-noise ratio judges comprehensive signal-to-noise ratio, further progress Interference Detection.
After the current working frequency for switching home base stations in one of the embodiments, further comprise the steps of:
The mark and target operation frequency point of the cell of home base stations are sent to the neighboring community of the cell of home base stations.
Switch home base stations current working frequency be target operation frequency point after, at this point, home base stations target operation frequency Point is its current working frequency, and the target operation frequency point after the mark of the cell of home base stations and home base stations switching is sent To adjacent area around the cell of home base stations, believe so that neighboring community updates neighboring cell list of the cell of home base stations in neighboring community Working frequency points in breath.Specifically, the mark of the cell of home base stations and target operation frequency point are sent to net by home base stations Pipe, network management goes to configure corresponding cell, or by the X2 connection of minizone, is done directly the transmitting of information.Neighboring community receives To after the mark of the cell of home base stations and target operation frequency point, working frequency points corresponding with the cell of home base stations are updated.
Referring to Fig. 6, also providing a kind of base station operation frequency handover device of embodiment, comprising:
First obtains module 610, the signal-to-noise ratio of the current working frequency for obtaining home base stations；
Whether detection module 620, the signal-to-noise ratio for detecting current working frequency are greater than preset threshold；
Second obtains module 630, for obtaining wireless network where home base stations when the testing result of detection module is no The working frequency points of each network base station and signal-to-noise ratio corresponding with working frequency points in network environment；
Switching module 640 is greater than for the current working frequency of home base stations to be switched to signal-to-noise ratio in each network base station Preset threshold and the maximum working frequency points of signal-to-noise ratio.
Whether above-mentioned base station operation frequency handover device, the signal-to-noise ratio by detecting current working frequency are greater than preset threshold Detect whether current working frequency is interfered, explanation is interfered when being not more than preset threshold, at this time, it may be necessary to will work as Preceding working frequency points switching is transmitted in order to avoid influencing data, and since the bigger signal transmission quality of signal-to-noise ratio is better, needs to switch current When working frequency points, the current working frequency of home base stations is switched into signal-to-noise ratio in each network base station and is greater than preset threshold and noise Than maximum working frequency points, that is, current working frequency switched to and is not interfered with and work frequency that signal transmission quality is best Point avoids interfering, so that it is guaranteed that signal transmission quality.
Referring to Fig. 7, switching module includes: in one of the embodiments,
Sorting module 741 is ranked up for the working frequency points to each network base station according to predetermined order rule；
Reference work frequency point obtain module 743, for obtains sort after network base station working frequency points in current work Make the different reference work frequency point of frequency point；
Target operation frequency point obtains module 745, for signal-to-noise ratio in each reference work frequency point to be greater than preset threshold and letter It makes an uproar than maximum working frequency points as target operation frequency point；
Current frequency handover module 747, for the current working frequency of home base stations to be switched to target operation frequency point.
Referring to Fig. 8, the predetermined order rule is the sequence rule of signal-to-noise ratio from big to small in one of the embodiments, Then.
In the present embodiment, target operation frequency point acquisition module includes:
Initial module 801 is 1 for count initialized parameter T；
First judgment module 802, for judging whether count parameter T is less than or equal to the number of reference work frequency point；
Second judgment module 803 judges T when for being less than or equal to the number of reference work frequency point as count parameter T Whether the signal-to-noise ratio of a reference work frequency point is greater than preset threshold；
The comprehensive signal-to-noise ratio of user side obtains module 804, is greater than default threshold for the signal-to-noise ratio when the T reference work frequency point When value, the user equipment of the corresponding network base station of the T reference work frequency point of access is obtained under the T reference work frequency point User side integrates signal-to-noise ratio；
Comprehensive signal-to-noise ratio obtains module 805, is used for when the comprehensive signal-to-noise ratio of user side is greater than pre-set user side noise threshold value, According to the signal-to-noise ratio and the comprehensive signal-to-noise ratio of user side of the T reference work frequency point, it is corresponding to obtain the T reference work frequency point Comprehensive signal-to-noise ratio；
Determining module 806 is used for when comprehensive signal-to-noise ratio is greater than preset comprehensive threshold value, by the corresponding T of comprehensive signal-to-noise ratio A reference work frequency point is as target operation frequency point；
Counting module 807, for count parameter T being added 1, and return when comprehensive signal-to-noise ratio is not more than preset comprehensive threshold value It returns and judges whether count parameter T is less than or equal to the number of reference work frequency point.
It in one of the embodiments, further include goal verification module 808.
Goal verification module 808, for when the signal-to-noise ratio of the T reference work frequency point be not more than preset threshold when, will be each The maximum working frequency points of signal-to-noise ratio are as target operation frequency point in reference work frequency point；Or in each reference work frequency point of detection whether There are the reference work frequency points that signal-to-noise ratio is greater than current working frequency, and if it exists, by signal-to-noise ratio maximum and signal-to-noise ratio is greater than currently The reference work frequency point of working frequency points is as target operation frequency point.
Counting module 807 is also used to count when the comprehensive signal-to-noise ratio of user side is no more than pre-set user side noise threshold value Parameter T adds 1, and returns to the number for judging whether count parameter T is less than or equal to reference work frequency point.
Goal verification module 808, is also used to when count parameter T is greater than the number of reference work frequency point, refers to work for each Make the maximum working frequency points of signal-to-noise ratio in frequency point as target operation frequency point, or detects in each reference work frequency point with the presence or absence of letter It makes an uproar than the reference work frequency point for being greater than current working frequency, and if it exists, by signal-to-noise ratio maximum and signal-to-noise ratio is greater than work at present frequency The reference work frequency point of point is as target operation frequency point.
Referring to Fig. 9, the comprehensive signal-to-noise ratio acquisition module of user side includes: in one of the embodiments,
Measuring configuration issues module 9041, for the user to the corresponding network base station of the T reference work frequency point of access The configuration of equipment sending measuring；Wherein, measuring configuration is matched for the measurement based on A4 trigger event for the T reference work frequency point It sets；
Third obtains module 9042, has measured transmission measurement report according to measuring configuration for obtaining in user equipment The first user equipment and not sent measurement report second user equipment；
Signal-to-noise ratio obtains module 9043, for obtaining the first user equipment and joining at the T according to the measurement report received Examine corresponding the first signal-to-noise ratio of user side under working frequency points；
Signal-to-noise ratio determining module 9044, for referring to work at T using default snr threshold as second user equipment Make corresponding the second signal-to-noise ratio of user side under frequency point；
User side integrates signal-to-noise ratio determining module 9045, for being believed according to the first signal-to-noise ratio of user side and user side second It makes an uproar and compares, obtain the comprehensive signal-to-noise ratio of user side.
It is one since above-mentioned base station operation frequency handover device is the device for executing above-mentioned base station operation frequency handover method One is corresponding, and detail feature also corresponds, and and therefore not to repeat here.
Each technical characteristic of above embodiments can be combined arbitrarily, for simplicity of description, not to above-described embodiment In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance Shield all should be considered as described in this specification.
Only several embodiments of the present invention are expressed for above embodiments, and the description thereof is more specific and detailed, but can not Therefore it is construed as limiting the scope of the patent.It should be pointed out that for those of ordinary skill in the art, In Under the premise of not departing from present inventive concept, various modifications and improvements can be made, and these are all within the scope of protection of the present invention. Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.

Claims (8)

1. a kind of base station operation frequency handover method, which comprises the following steps:
Obtain the signal-to-noise ratio of the current working frequency of home base stations；
Whether the signal-to-noise ratio for detecting the current working frequency is greater than preset threshold；
If it is not, obtain in wireless network environment where the home base stations working frequency points of each network base station and with the work The corresponding signal-to-noise ratio of frequency point；
The current working frequency of the home base stations is switched into signal-to-noise ratio in each network base station and is greater than the preset threshold And the maximum working frequency points of signal-to-noise ratio；
The current working frequency by the home base stations switches to signal-to-noise ratio in each network base station and is greater than described preset The step of threshold value and signal-to-noise ratio maximum working frequency points includes:
The working frequency points of each network base station are ranked up according to predetermined order rule；The predetermined order rule is noise Than ordering rule from big to small；
The reference work frequency point different from the current working frequency in the working frequency points of the network base station after obtaining sequence；
Signal-to-noise ratio in each reference work frequency point is greater than the preset threshold and the maximum working frequency points of signal-to-noise ratio as mesh Mark working frequency points；
The current working frequency of the home base stations is switched into the target operation frequency point；
It is described that signal-to-noise ratio in each reference work frequency point is greater than the preset threshold and the maximum working frequency points work of signal-to-noise ratio Include: for the step of target operation frequency point
Count initialized parameter T is 1；
Judge whether the count parameter T is less than or equal to the number of the reference work frequency point；
When the count parameter T is less than or equal to the number of the reference work frequency point, the T reference work frequencies are judged Whether the signal-to-noise ratio of point is greater than preset threshold；
When the signal-to-noise ratio of the T reference work frequency points is greater than the preset threshold, acquisition access T is described to refer to work Make the comprehensive noise of user side of the user equipment of the corresponding network base station of frequency point under the T reference work frequency points Than；
When the comprehensive signal-to-noise ratio of the user side is greater than pre-set user side noise threshold value, according to the T reference work frequency points Signal-to-noise ratio and the comprehensive signal-to-noise ratio of the user side, obtain the corresponding comprehensive signal-to-noise ratio of the T reference work frequency points；
When the comprehensive signal-to-noise ratio is greater than preset comprehensive threshold value, described work is referred to for corresponding T of the comprehensive signal-to-noise ratio Make frequency point as the target operation frequency point；
When the comprehensive signal-to-noise ratio is not more than preset comprehensive threshold value, the count parameter T is added 1, and return and judge the meter The step of whether number parameter T is less than or equal to the number of the reference work frequency point.
2. base station operation frequency handover method according to claim 1, which is characterized in that further comprise the steps of:
When the signal-to-noise ratio of the T reference work frequency points is not more than the preset threshold, by each reference work frequency point The middle maximum working frequency points of signal-to-noise ratio are as the target operation frequency point, or detect and whether there is in each reference work frequency point Signal-to-noise ratio is greater than the reference work frequency point of the current working frequency, and if it exists, by signal-to-noise ratio maximum and signal-to-noise ratio is greater than described The reference work frequency point of current working frequency is as the target operation frequency point；
When the comprehensive signal-to-noise ratio of the user side is not more than pre-set user side noise threshold value, the count parameter T is added 1, and return It returns and the step of whether the count parameter T is less than or equal to the number of the reference work frequency point is judged；
When the count parameter T is greater than the number of the reference work frequency point, by signal-to-noise ratio in each reference work frequency point Maximum working frequency points are as big with the presence or absence of signal-to-noise ratio in the target operation frequency point, or each reference work frequency point of detection In the reference work frequency point of the current working frequency, and if it exists, by signal-to-noise ratio maximum and signal-to-noise ratio is greater than the work at present The reference work frequency point of frequency point is as the target operation frequency point.
3. base station operation frequency handover method according to claim 1, which is characterized in that the acquisition accesses the T institute It is comprehensive to state user side of the user equipment of the corresponding network base station of reference work frequency point under the T reference work frequency points Close signal-to-noise ratio the step of include:
User equipment sending measuring configuration to the corresponding network base station of the described reference work frequency point of access T；Wherein, The measuring configuration is the measuring configuration based on A4 trigger event for the T reference work frequency points；
Obtain in the user equipment according to the measuring configuration measure send measurement report the first user equipment with And the second user equipment of not sent measurement report；
According to the measurement report received, it is right under the T reference work frequency points to obtain first user equipment The first signal-to-noise ratio of user side answered；
Using default snr threshold as the second user equipment the corresponding user side under the T reference work frequency point Second signal-to-noise ratio；
According to the second signal-to-noise ratio of first signal-to-noise ratio of user side and the user side, the comprehensive noise of the user side is obtained Than.
4. a kind of base station operation frequency handover device characterized by comprising
First obtains module, the signal-to-noise ratio of the current working frequency for obtaining home base stations；
Whether detection module, the signal-to-noise ratio for detecting the current working frequency are greater than preset threshold；
Second obtains module, wireless for when the testing result of the detection module is no, obtaining the home base stations place The working frequency points of each network base station and signal-to-noise ratio corresponding with the working frequency points in network environment；
Switching module is greater than for the current working frequency of the home base stations to be switched to signal-to-noise ratio in each network base station The preset threshold and the maximum working frequency points of signal-to-noise ratio；
The switching module includes:
Sorting module is ranked up for the working frequency points to each network base station according to predetermined order rule；It is described default Ordering rule is the ordering rule of signal-to-noise ratio from big to small；
Reference work frequency point obtain module, for obtains sort after the network base station working frequency points in the current work Make the different reference work frequency point of frequency point；
Target operation frequency point obtains module, for signal-to-noise ratio in each reference work frequency point to be greater than the preset threshold and letter It makes an uproar than maximum working frequency points as target operation frequency point；
Current frequency handover module, for the current working frequency of the home base stations to be switched to the target operation frequency point；
The target operation frequency point obtains module
Initial module is 1 for count initialized parameter T；
First judgment module, for judging whether the count parameter T is less than or equal to the number of the reference work frequency point；
Second judgment module judges the when for being less than or equal to the number of the reference work frequency point as the count parameter T Whether the signal-to-noise ratio of the T reference work frequency points is greater than preset threshold；
The comprehensive signal-to-noise ratio of user side obtains module, is greater than for the signal-to-noise ratio when the T reference work frequency points described default When threshold value, the user equipment of the corresponding network base station of the reference work frequency point of acquisition access T is in the T ginsengs Examine the comprehensive signal-to-noise ratio of user side under working frequency points；
Comprehensive signal-to-noise ratio obtains module, is used for when the comprehensive signal-to-noise ratio of the user side is greater than pre-set user side noise threshold value, root According to the signal-to-noise ratio and the comprehensive signal-to-noise ratio of the user side of the T reference work frequency points, the T reference works are obtained The corresponding comprehensive signal-to-noise ratio of frequency point；
Determining module, for when the comprehensive signal-to-noise ratio is greater than preset comprehensive threshold value, by the corresponding T of the comprehensive signal-to-noise ratio A reference work frequency point is as the target operation frequency point；
Counting module, for the count parameter T being added 1, and return when the comprehensive signal-to-noise ratio is not more than preset comprehensive threshold value It returns and judges whether the count parameter T is less than or equal to the number of the reference work frequency point.
5. base station operation frequency handover device according to claim 4, which is characterized in that further include goal verification module；
The goal verification module, for when the signal-to-noise ratio of the T reference work frequency point is not more than the preset threshold, Using the maximum working frequency points of signal-to-noise ratio in each reference work frequency point as the target operation frequency point；Or each ginseng of detection Examine the reference work frequency point for being greater than the current working frequency in working frequency points with the presence or absence of signal-to-noise ratio, and if it exists, by signal-to-noise ratio Maximum and signal-to-noise ratio is greater than the reference work frequency point of the current working frequency as the target operation frequency point；
The counting module is also used to when the comprehensive signal-to-noise ratio of the user side is no more than pre-set user side noise threshold value, by institute It states count parameter T and adds 1, and return to the number for judging whether the count parameter T is less than or equal to the reference work frequency point；
The goal verification module is also used to when the count parameter T is greater than the number of the reference work frequency point, Jiang Gesuo The maximum working frequency points of signal-to-noise ratio are stated in reference work frequency point as the target operation frequency point, or each reference work of detection Be greater than the reference work frequency point of the current working frequency in frequency point with the presence or absence of signal-to-noise ratio, and if it exists, by signal-to-noise ratio it is maximum and Signal-to-noise ratio is greater than the reference work frequency point of the current working frequency as the target operation frequency point.
6. base station operation frequency handover device according to claim 4, which is characterized in that the comprehensive signal-to-noise ratio of the user side Obtaining module includes:
Measuring configuration issues module, for the user to the corresponding network base station of the described reference work frequency point of access T The configuration of equipment sending measuring；Wherein, the measuring configuration is for a reference work frequency point of T based on A4 trigger event Measuring configuration；
Third obtains module, has measured transmission measurement report according to the measuring configuration for obtaining in the user equipment The first user equipment and not sent measurement report second user equipment；
Signal-to-noise ratio obtains module, for obtaining first user equipment in the T institute according to the measurement report received State corresponding the first signal-to-noise ratio of user side under reference work frequency point；
Signal-to-noise ratio determining module, for described with reference to work at T using default snr threshold as the second user equipment Make corresponding the second signal-to-noise ratio of user side under frequency point；
User side integrates signal-to-noise ratio determining module, for being believed according to first signal-to-noise ratio of user side and the user side second It makes an uproar and compares, obtain the comprehensive signal-to-noise ratio of the user side.
7. a kind of computer storage medium, is stored thereon with computer program, which is characterized in that described program is executed by processor When can realize base station operation frequency handover method as described in any one of claims 1 to 3.
8. a kind of terminal device, can run on a storage medium and on a processor including storage medium, processor and storage Computer program, the processor realize base station operation frequency as claimed any one in claims 1 to 3 when executing described program Point switching method.
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