CN105072641B - A kind of carrier aggregation subdistrict finds method and apparatus - Google Patents
A kind of carrier aggregation subdistrict finds method and apparatus Download PDFInfo
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- CN105072641B CN105072641B CN201510423111.8A CN201510423111A CN105072641B CN 105072641 B CN105072641 B CN 105072641B CN 201510423111 A CN201510423111 A CN 201510423111A CN 105072641 B CN105072641 B CN 105072641B
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Abstract
The present invention provides a kind of carrier aggregation subdistricts to find method and apparatus, according to the drive test data of record, in the period T2 T1 of drive test terminal access cell P, if it is determined that the PCI for the carrying secondary cell that base station issues and the radio resource control rrc layer connection reconfiguration signaling of frequency point are not received, in the drive test data then obtained in sweep generator in period T1 t to T2+t, drive test data when sweep generator is less than pre-determined distance value with drive test terminal distance is found；If there are the frequency point that frequency point is not equal to cell P in the drive test data found, and with the frequency point of the cell at intervals of the cell S of the multiple of 300kHz, it is determined that cell P and cell S is that the probability of carrier aggregation subdistrict is Q1, wherein, Q1 is more than 0, and less than 100%.The program can classify finds carrier aggregation subdistrict to the greatest extent.
Description
Technical field
The present invention relates to wireless communication technology field, more particularly to a kind of carrier aggregation subdistrict finds method and apparatus.
Background technology
The development of mobile Internet causes mobile communication data business amount to be promoted at double, traditional second generation (2G) and the third generation
The peak rate of (3G) cellular network can not meet the needs of diversified business.
Then on December 4th, 2013, the Ministry of Industry and Information Technology issues simultaneously to China Mobile, China Unicom and China Telecom
Send out the operation licence plate of time division duplex LTE (TD-LTE).On 2 27th, 2015, the Ministry of Industry and Information Technology was again to China Unicom in
State's telecommunications has issued the operation licence plate of frequency division duplex (LTE FDD).As forth generation (4G) mobile communication technology, TD-LTE/LTE
FDD down peak magnitudes are up to 110Mbps, 150Mbps respectively.
On this basis, third generation partner program (3GPP) further enhances LTE technologies, wherein most important
One of technology be exactly carrier aggregation, i.e., be simultaneously 1 user service by using multiple carrier wave sections, without promoting frequency spectrum effect
On the premise of rate, terminal peak rate is promoted at double.International and domestic mainstream carrier extremely payes attention to carrier aggregation technology, part
Leading operator has completed commercial deployment.
Drive test is carrier network planning, the important means of optimization.By using sweep generator or drive test terminal cooperation drive test
Software records frequency point, Physical Cell Identifier (PCI), Reference Signal Received Power (RSRP), longitude and latitude and the letter of cell in network
The information such as number interference-to-noise ratio (SINR).Then background analysis is carried out to it, provides the network coverage, Capacity Assessment result and optimization
It is recommended that.
But due to sweep generator equipment limit, the down-going synchronous with multiple base stations is can be only done, reception base station issues wide
The data of channel are broadcast, and assessment is measured to reference signal, network can not be accessed.Therefore, sweep generator can not trigger data
Business, always in idle states, it is impossible to know which cell is configured with carrier aggregation function in network, can only will there is carrier wave to gather
The cell of conjunction is considered as individual cell and treats.
Different from sweep generator, drive test terminal can completely access network, may be at radio resource control connection
(RRC_Connected) state, and trigger data downlink is with uploading.By monitoring rrc layer Signalling exchange, know that network side configures
Carrier aggregation subdistrict.But drive test terminal can only monitor and record the information such as the frequency point of serving cell, PCI, without moving
During dynamic property flow, the information of adjacent area can not be obtained.
The content of the invention
In view of this, the application provides a kind of carrier aggregation subdistrict and finds method and apparatus, can classify utmostly
Discovery carrier aggregation subdistrict.
In order to solve the above technical problems, what the technical solution of the application was realized in：
A kind of carrier aggregation subdistrict finds method, and this method includes：
Record drive test terminal and sweep generator carry out drive test data during drive test, the drive test data bag in LTE-A outfields
It includes：Physical Cell Identifier PCI, the frequency point of cell；Wherein, the drive test terminal triggers network when accessing cell progress drive test
Carrier aggregation function is configured, and records and starts the time T1 for accessing the cell and the time T2 for leaving the cell；
According to the drive test data of record, in the period T2-T1 of drive test terminal access cell P, however, it is determined that do not connect
The PCI for the carrying secondary cell that base station issues and the radio resource control rrc layer connection reconfiguration signaling of frequency point are received, then is being swept
In the drive test data that frequency instrument obtains in period T1-t to T2+t, find sweep generator and drive test terminal distance be less than it is default away from
Drive test data during from value；Wherein, the speed configuration that t is moved according to drive test terminal；
If there are the frequency point that frequency point is not equal to cell P in the drive test data found, with the frequency point of the cell P at intervals of
The cell S of the integral multiple of 300kHz, and the frequency point of the frequency point of cell P and cell S are third generation partner program 3GPP specifications
In the combination of carrier aggregation frequency range, it is determined that cell P and cell S are that the probability of carrier aggregation subdistrict is Q1, wherein, Q1 is more than 0,
And less than 100%.
A kind of carrier aggregation subdistrict finds device, which includes：Recording unit and determination unit；
The recording unit carries out drive test number during drive test for recording drive test terminal and sweep generator in LTE-A outfields
According to the drive test data includes：Physical Cell Identifier PCI, the frequency point of cell；Wherein, the drive test terminal access cell into
When walking along the street is surveyed, network configuration carrier aggregation function is triggered, and is recorded and is started the time T1 for accessing the cell and leave the cell
Time T2；
The determination unit accesses cell for the drive test data according to the recording unit records in the drive test terminal
In the period T2-T1 of P, however, it is determined that do not receive the PCI of carrying secondary cell and the wireless heterogeneous networks of frequency point that base station issues
Agreement rrc layer connection reconfiguration signaling in the drive test data then obtained in sweep generator in period T1-t to T2+t, finds and sweeps
Frequency instrument is less than drive test data during pre-determined distance value with drive test terminal distance；Wherein, t matches somebody with somebody according to the speed that drive test terminal moves
It puts；If there are the frequency point that frequency point is not equal to cell P in the drive test data found, with the frequency point of the cell P at intervals of
The cell S of the integral multiple of 300kHz, and the frequency point of the frequency point of cell P and cell S are third generation partner program 3GPP specifications
In the combination of carrier aggregation frequency range, it is determined that cell P and cell S are that the probability of carrier aggregation subdistrict is Q1, wherein, Q1 is more than 0,
And less than 100%.
As can be seen from the above technical solution, by being obtained in outfield drive test to drive test terminal and sweep generator in the application
Drive test data is merged, and obtains the information for the cell that carrier aggregation function is configured in network, realizes LTE-A carrier aggregations
The drive test process of function.It can classify with this solution and farthest find carrier aggregation subdistrict.
Description of the drawings
Fig. 1 is driver test system schematic diagram in the embodiment of the present application；
Fig. 2 is that carrier aggregation subdistrict finds flow diagram in the embodiment of the present application one；
Fig. 3 is that carrier aggregation subdistrict finds flow diagram in the embodiment of the present application two；
Fig. 4 is the apparatus structure schematic diagram for being applied to above-mentioned technology in the embodiment of the present application.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and examples,
Technical scheme is described in detail.
It is proposed that a kind of carrier aggregation subdistrict finds method in the embodiment of the present application, this method can support Long Term Evolution to enhance
(LTE-A) the outfield drive test of carrier aggregation function, it is necessary first to obtain the drive test data when carrying out outfield drive test, specifically such as
Under：
Drive test is carried out by sweep generator and drive test terminal respectively during the drive test of outfield.During the drive test of outfield, sweep
It the position of frequency instrument and drive test terminal will be as close as to reduce drive test error.
The Physical Cell Identifier (PCI) of the multiple cells in its position and frequency point and into walking along the street are obtained by sweep generator
Global positioning system (GPS) information during survey；
Drive test terminal obtains the frequency point of serving cell (cell that the drive test terminal is currently accessed), PCI and starts to access
The time T1 of each cell and time T2 for leaving the cell.
Drive test terminal triggers network configuration carrier aggregation function, to receive under base station when accessing cell progress drive test
The PCI of the carrying secondary cell of hair and the rrc layer connection reconfiguration signaling of frequency point；The signaling, Bu Shizhe roads whether are issued as base station
Survey terminal control.
Physical record can be that the PCI that drive test terminal is sequentially ingressed into is i1,i2,…,iC, drive test terminal is sequentially ingressed into each PCI
The correspondence period.It in recording period, can be recorded by two moment, that is, access a PCI and leave the two of the PCI
At a moment, the subscript 1 of i represents the mark of sequence number rather than the mark of real PCI to being sequentially ingressed into PCI to C in the present embodiment
Know, represent to access the period of which PCI for the subscript of time period t, wherein, C is that drive test terminal connects during drive test
The total number of the PCI entered, C are the integer more than 2.
In specific implementation, can also other drive test informations be recorded according to actual needs, as each PCI pairs in each period
Frequency point RSRP and SINR, multipath number, time delay and the channel signal answered, for determining progress performance point behind carrier aggregation subdistrict
Analysis.
During the drive test of outfield, the equipment for installing drive test software, such as a PC machine can be used, records related drive test data,
For determining whether there is carrier aggregation subdistrict.Below for convenience, the equipment of the installation drive test software is known as
Test equipment.
Referring to Fig. 1, Fig. 1 is driver test system schematic diagram in the embodiment of the present application.In Fig. 1, test equipment and drive test terminal and
Sweep generator is connected, and road measuring device records drive test data when drive test terminal and sweep generator progress drive test, and is analyzed, to determine
With the presence or absence of the cell that the cell accessed with drive test terminal is carrier aggregation subdistrict.
Below in conjunction with the accompanying drawings, the process that carrier aggregation subdistrict is determined whether there is in the embodiment of the present application is described in detail.
Embodiment one
Referring to Fig. 2, Fig. 2 is that carrier aggregation subdistrict finds flow diagram in the embodiment of the present application one.It concretely comprises the following steps：
Step 201, drive test number when test equipment record drive test terminal and sweep generator carry out drive test in LTE-A outfields
According to.
The drive test data includes：PCI, the frequency point of cell；Wherein, the drive test terminal carries out drive test in access cell
When, network configuration carrier aggregation function is triggered, and records and starts the time T1 for accessing the cell and the time T2 for leaving the cell.
When accessing some cell progress drive test, if receiving the PCI of carrying secondary cell and the RRC of frequency point that base station issues
During layer connection reconfiguration signaling, record is also needed to receive the PCI and frequency point of the cell that the signaling and the signaling carry.
Step 202, which accesses the period of cell P according to the drive test data of record in the drive test terminal
In T2-T1, however, it is determined that do not receive the PCI for the carrying secondary cell that base station issues and the rrc layer connection reconfiguration signaling of frequency point, then exist
In the drive test data that sweep generator obtains in period T1-t to T2+t, sweep generator is found with drive test terminal distance less than default
Drive test data during distance value.
Wherein, the speed configuration that t is moved according to drive test terminal；
When carrying out drive test, drive test terminal can access a cell according to actual drive test and carry out drive test, can also be successively
It accesses multiple cells and carries out drive test.Each cell in the embodiment of the present application for drive test terminal access determines whether there is respectively
With the cell that it is carrier aggregation subdistrict.
The drive test data of record further includes：GPS information；
The GPS information of the distance between sweep generator and drive test terminal in drive test data determines.
Step 203, if there are the frequency point that frequency point is not equal to cell P in the drive test data that the test equipment is found, with institute
Cell S of the frequency point at intervals of the integral multiple of 300kHz of cell P is stated, and the frequency point of cell P and the frequency point of cell S close for the third generation
Make the carrier aggregation frequency range combination in Partnership Program (3GPP) specification, it is determined that cell P and cell S is the general of carrier aggregation subdistrict
Rate is Q1.
Wherein, Q1 is more than 0, and less than 100%.
Cell P and cell S are the probability of carrier aggregation subdistrict when being Q1, and indicating cell P and cell S is doubtful carrier aggregation
Cell.
Embodiment two
Referring to Fig. 3, Fig. 3 is that carrier aggregation subdistrict finds flow diagram in the embodiment of the present application two.It concretely comprises the following steps：
Step 301, the drive test data that test equipment record drive test terminal and sweep generator obtain during drive test.
Step 302, the test equipment is according to the drive test data, in the period T2- of drive test terminal access cell P
In T1, it is determined whether the PCI for the carrying secondary cell that base station issues and the rrc layer connection reconfiguration signaling of frequency point are received, if so,
Perform step 303；Otherwise, step 304 is performed.
Step 303, which determines that the rrc layer connection reassigns the PCI carried in signaling and frequency point is corresponding
Cell R is 100% with probability that cell P is carrier aggregation subdistrict, terminates this flow.
Step 304, in the drive test data which obtains in sweep generator in period T1-t to T2+t, find
The distance between sweep generator and drive test terminal are less than drive test data during pre-determined distance value.
Step 305, which determines whether that searching the distance between sweep generator and drive test terminal is less than pre-determined distance
Drive test data during value, if so, performing step 306；Otherwise, step 312 is performed.
Step 306, which determines the frequency for being not equal to cell P in the drive test data found with the presence or absence of frequency point
Point, if so, performing step 307；Otherwise, step 312 is performed.
Step 307, which determines whether there is the frequency point with the cell P at intervals of the small of the multiple of 300kHz
Area S, if so, performing step 308；Otherwise, step 312 is performed.
Step 308, which determines whether the frequency point of cell P and the frequency point of cell S are third generation affiliate meter
The carrier aggregation frequency range combination in (3GPP) specification is drawn, if so, performing step 309；Otherwise, step 312 is performed.
Step 309, which determines whether the PCI of the PCI and cell P of cell S is identical, if so, performing step
310；Otherwise, step 311 is performed.
Step 310, which determines that the probability that cell P and cell S is carrier aggregation subdistrict is Q2, terminates this stream
Journey.
The value of the Q2 configured in the present embodiment is more than Q1, and therefore, when probability is Q2, two cells are more doubtful carrier aggregation
Cell.
Step 311, which determines that the probability that cell P and cell S is carrier aggregation subdistrict is Q1, terminates this stream
Journey.
Step 312, which determines the cell being not present with cell P is carrier aggregation subdistrict.
Whether the Q1 and Q2 in the embodiment of the present application are doubtful according to definite two cells in practical application in specific implementation
It is configured like the degree of carrier aggregation subdistrict.
Determine that definite carrier aggregation subdistrict, doubtful carrier aggregation subdistrict, more doubtful carrier wave gather in the embodiment of the present application
Cell is closed, the drive test data based on sweep generator can further analyze the coverings of LTE-A carrier aggregation networks, function, performance
Deng.
Using the drive test terminal and the sweep generator equipment of LTE for having LTE-A in the embodiment of the present application, LTE-A carrier waves are completed
The drive test process of polymerizable functional is not required to develop new test instrumentation equipment, considers drive test terminal and sweep generator data, can be with
Reduce the measurement error introduced by equipment.And according to information such as drive test terminal rrc layer signaling, cell PCI, frequency points, cell is reflected
It penetrates as carrier aggregation subdistrict, doubtful carrier aggregation subdistrict and more doubtful carrier aggregation subdistrict, discovery to the greatest extent of classifying carries
Ripple aggregation cell.
Based on same inventive concept, the application also proposes that a kind of carrier aggregation subdistrict finds device.It is referring to Fig. 4, Fig. 4
It is applied to the apparatus structure schematic diagram of above-mentioned technology in the embodiment of the present application.The device includes：Recording unit 401 and determination unit
402；
Recording unit 401 carries out drive test number during drive test for recording drive test terminal and sweep generator in LTE-A outfields
According to the drive test data includes：PCI, the frequency point of cell；Wherein, the drive test terminal is when accessing cell progress drive test, triggering
Network configuration carrier aggregation function, and record and start the time T1 for accessing the cell and the time T2 for leaving the cell；
Determination unit 402, for accessing cell P in the drive test terminal according to the drive test data that recording unit 401 records
Period T2-T1 in, however, it is determined that do not receive the PCI for the carrying secondary cell that base station issues and the rrc layer connection reconfiguration of frequency point
Signaling, then in the drive test data obtained in sweep generator in period T1-t to T2+t, find sweep generator and drive test terminal away from
Drive test data during from less than pre-determined distance value；Wherein, the speed configuration that t is moved according to drive test terminal；If the drive test found
There are the frequency point that frequency point is not equal to cell P in data, with the frequency point of the cell P at intervals of the cell S of the integral multiple of 300kHz,
And the frequency point of cell P is combined with the frequency point of cell S for the carrier aggregation frequency range in third generation partner program (3GPP) specification,
Then determine that the probability that cell P and cell S is carrier aggregation subdistrict is Q1, wherein, Q1 is more than 0, and less than 100%.
It is preferred that
Determination unit 402 is further used for if it is determined that the PCI of cell S is identical with the PCI of cell P, it is determined that cell P with
Cell S is that the probability of carrier aggregation subdistrict is Q2, wherein, Q2 is more than Q1, and less than 100%.
It is preferred that
Determination unit 402 is further used in the period T2-T1 of drive test terminal access cell P, if receiving
The PCI for the carrying secondary cell that base station issues and the rrc layer connection reconfiguration signaling of frequency point, it is determined that the rrc layer connection reassigns
The corresponding cell R of PCI and frequency point carried in signaling is 100% with probability that cell P is carrier aggregation subdistrict.
It is preferred that
Determination unit 402 is further used for the GPS information in drive test data and determines the sweep generator and drive test terminal
Distance, the drive test data further include：GPS information.
The unit of above-described embodiment can be integrated in one, and can also be deployed separately；A unit is can be merged into, also may be used
To be further split into multiple subelements.
In conclusion the application is carried out by the drive test data obtained to drive test terminal and sweep generator in outfield drive test
Fusion obtains the information for the cell that carrier aggregation function is configured in network, realizes the drive test mistake of LTE-A carrier aggregation functions
Journey.It can classify with this solution and farthest find carrier aggregation subdistrict.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God and any modification, equivalent substitution, improvement and etc. within principle, done, should be included within the scope of protection of the invention.
Claims (8)
1. a kind of carrier aggregation subdistrict finds method, which is characterized in that this method includes：
Record drive test data when drive test terminal and sweep generator carry out drive test in Long Term Evolution enhancing LTE-A outfields, the road
Measured data includes：Physical Cell Identifier PCI, the frequency point of cell；Wherein, the drive test terminal access cell carry out drive test when,
Network configuration carrier aggregation function is triggered, and records and starts the time T1 for accessing the cell and the time T2 for leaving the cell；
According to the drive test data of record, in the period T2-T1 of drive test terminal access cell P, however, it is determined that do not receive
The PCI for the carrying secondary cell that base station issues and the radio resource control rrc layer connection reconfiguration signaling of frequency point, then in sweep generator
In the drive test data obtained in period T1-t to T2+t, find sweep generator and be less than pre-determined distance value with drive test terminal distance
When drive test data；Wherein, the speed configuration that t is moved according to drive test terminal；
If there are the frequency point that frequency point is not equal to cell P in the drive test data found, with the frequency point of the cell P at intervals of
The cell S of the integral multiple of 300kHz, and the frequency point of the frequency point of cell P and cell S are third generation partner program 3GPP specifications
In the combination of carrier aggregation frequency range, it is determined that cell P and cell S are that the probability of carrier aggregation subdistrict is Q1, wherein, Q1 is more than 0,
And less than 100%.
2. according to the method described in claim 1, it is characterized in that, the definite cell P and cell S is carrier aggregation subdistrict
After probability is Q1, the method is further included：
If it is determined that the PCI of cell S is identical with the PCI of cell P, it is determined that cell P is with the probability that cell S is carrier aggregation subdistrict
Q2, wherein, Q2 is more than Q1, and less than 100%.
3. according to the method described in claim 1, it is characterized in that, the method is further included：
In the period T2-T1 of drive test terminal access cell P, if receiving the PCI for the carrying secondary cell that base station issues
With the rrc layer connection reconfiguration signaling of frequency point, it is determined that the rrc layer connection reassigns the PCI carried in signaling and frequency point corresponds to
Cell R, be 100% with probability that cell P is carrier aggregation subdistrict.
4. according to the method described in claim 1-3 any one, which is characterized in that the drive test data further includes：The whole world is fixed
Position system GPS information；
GPS information of the sweep generator with drive test terminal distance in drive test data determines.
5. a kind of carrier aggregation subdistrict finds device, which is characterized in that the device includes：Recording unit and determination unit；
The recording unit, when carrying out drive test in Long Term Evolution enhancing LTE-A outfields for recording drive test terminal and sweep generator
Drive test data, the drive test data includes：Physical Cell Identifier PCI, the frequency point of cell；Wherein, the drive test terminal is connecing
When entering cell progress drive test, network configuration carrier aggregation function is triggered, and is recorded and is started the time T1 for accessing the cell and leave
The time T2 of the cell；
The determination unit, for the drive test data according to the recording unit records drive test terminal access cell P's
In period T2-T1, however, it is determined that do not receive the PCI of carrying secondary cell and the radio resource control of frequency point that base station issues
Rrc layer connection reconfiguration signaling in the drive test data then obtained in sweep generator in period T1-t to T2+t, finds sweep generator
It is less than drive test data during pre-determined distance value with drive test terminal distance；Wherein, the speed configuration that t is moved according to drive test terminal；If
There are the frequency point that frequency point is not equal to cell P in the drive test data found, the frequency point with the cell P is at intervals of the whole of 300kHz
The cell S of several times, and the frequency point of cell P and the frequency point of cell S gather for the carrier wave in third generation partner program 3GPP specifications
Sum of fundamental frequencies section combines, it is determined that and cell P and cell S is that the probability of carrier aggregation subdistrict is Q1, wherein, Q1 is more than 0, and is less than
100%.
6. device according to claim 5, which is characterized in that
The determination unit is further used for if it is determined that the PCI of cell S is identical with the PCI of cell P, it is determined that cell P and cell
S is that the probability of carrier aggregation subdistrict is Q2, wherein, Q2 is more than Q1, and less than 100%.
7. device according to claim 5, which is characterized in that
The determination unit is further used in the period T2-T1 of drive test terminal access cell P, if receiving base
The PCI for the carrying secondary cell that station issues and the rrc layer connection reconfiguration signaling of frequency point, it is determined that the rrc layer connection reassigns letter
The corresponding cell R of PCI and frequency point carried in order is 100% with probability that cell P is carrier aggregation subdistrict.
8. according to the device described in claim 5-7 any one, which is characterized in that
The determination unit, the global position system GPS information being further used in drive test data determine the sweep generator
With drive test terminal distance, the drive test data further includes：GPS information.
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