CN103581955B - Method and device for determining channel quality - Google Patents
Method and device for determining channel quality Download PDFInfo
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- CN103581955B CN103581955B CN201210257802.1A CN201210257802A CN103581955B CN 103581955 B CN103581955 B CN 103581955B CN 201210257802 A CN201210257802 A CN 201210257802A CN 103581955 B CN103581955 B CN 103581955B
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Abstract
The invention discloses a method for determining channel quality. The method comprises the step of acquiring RSRP (Reference signal received power) of a serving cell and RSRP of cells neighboring the serving cell, and the step of determining the quality of a downlink channel of the serving cell according to the acquired RSRP of the serving cell and the acquired RSRP of the cells neighboring the serving cell. The invention further correspondingly discloses a device for determining the channel quality. By means of the method and device, the channel quality of the serving cell is determined according to the RSRP of the serving cell and the RSRP of the cells neighboring the serving cell, the problem that in the prior art, the channel quality cannot be accurately determined under the situation of network heavy loads is solved, the channel interference problems can be found in time at the basic optimization stage of the system, the channel quality is improved through coverage optimization, and the network coverage performance is improved.
Description
Technical field
The present invention relates to the communications field, more particularly to a kind of method and device for determining channel quality.
Background technology
In forth generation mobile communication system, the cell reference signals (Cell-Specific for typically directly being arrived using drive test
Reference Signal, Cell RS) carrier-in-interference noise ratio CINR (Carrier to Interference plus
Noise Ratio, RS CINR) or drive test to the carrier-in-interference noise ratio (CINR) of Traffic Channel (for PDSCH be
SINR) as the quality of Traffic Channel.In the network optimization, the Main Basiss for also mainly being optimized with RS CINR as covering quality.
In forth generation mobile communication system, due to due to system design, the quality of down channel is relevant with network load,
Network load is higher, and the quality of its down channel is poorer.Therefore, in the coverage optimization of network engineering construction period, at network
Under zero load, the channel quality measured by drive test terminal can only embody the channel quality in the case of network underload is carried, and
Effectively cannot embody when the channel interference conditions under network high load condition.Particularly, Cell RS optimize as the network coverage
Primary Reference signal, the RS CINR of unloaded lower measurement can not accurately reflect the channel disturbance situation under high load capacity, so as to have
Effect carries out network coverage optimization.
To sum up, correlation technique cannot accurately determine the channel quality under network high load condition, to be based on related skill
The coverage optimization result of art, so as to the cell mobile communication systems of high capacity cannot be adapted to.
The content of the invention
In view of this, present invention is primarily targeted at providing a kind of method and device for determining channel quality, can solve
Under certainly unloaded, the problem of unpredictable high load capacity network interferences, improves network covering property.
To reach above-mentioned purpose, the technical scheme is that what is be achieved in that：
A kind of method for determining channel quality, including：
Obtain cell reference signals intensity RSRP of Serving cell and its each adjacent area；
According to the Serving cell and its RSRP of each adjacent area of the acquisition, the down channel matter of the server cell is determined
Amount.
The Serving cell and its RSRP of each adjacent area according to acquisition, determines the down channel matter of the server cell
Measure and be：
Calculate down channel quality Equivalent Calculation value
Wherein, RS CINR are the carrier-in-interference noise ratio of the Serving cell reference signal, and RSRPS is Serving cell
RSRP, I represent adjacent area interfering signal power, and N makes an uproar for receiver bottom.
For complete same display system, the I=I1+I2, interference of the RS to RSInterference of the PDSCH to RSRSRPiFor RS deviation post identicals adjacent area field intensity value, RSRPjFor the inconsistent neighbour of RS deviation posts
The receiving power of area B class symbol PDSCH each RE, PloadFor cell load.
For the same display system in part, the I=(I1+I2) * PS, interference of the RS to RSPDSCH is to RS's
InterferenceRSRPiFor RS deviation post identicals adjacent area field intensity value, RSRPjIt is inconsistent for RS deviation posts
Adjacent area B class symbol PDSCH each RE receiving power, PloadFor cell load, PS=with the bandwidth/overall system of frequency part
It is wide.
For inter-frequency networking system, the I=I1+I2, interference of the RS to RSInterference of the PDSCH to RSRSRPiFor RS deviation post identicals homogeneous-frequency adjacent-domain field intensity value, RSRPjIt is inconsistent for RS deviation posts
Homogeneous-frequency adjacent-domain B class symbol PDSCH each RE receiving power, PloadFor cell load.
A kind of device for determining channel quality, including：Acquisition module and determining module；Wherein,
The acquisition module, for obtaining the RSRP of Serving cell and its each adjacent area；
The determining module, for the Serving cell that obtained according to the acquisition module and its RSRP of each adjacent area, it is determined that
The down channel quality of the server cell.
The determining module include it is complete with frequency determination sub-module,
It is described complete with frequency determination sub-module, for under display system scene, calculating down channel quality Equivalent Calculation entirely
ValueWherein, RS CINR are that the carrier-in-interference of the Serving cell reference signal is made an uproar
Acoustic ratio, RSRPSFor the RSRP of Serving cell, I represents adjacent area interfering signal power, I=I1+I2, interference of the RS to RSInterference of the PDSCH to RSRSRPiFor RS deviation post identicals adjacent area field intensity value,
RSRPjFor the receiving power of inconsistent adjacent area B class symbol PDSCH each RE of RS deviation posts, PloadFor cell load, N is to connect
Make an uproar at receipts machine bottom.
The determining module includes part with frequency determination sub-module,
The part calculates down channel quality equivalent in part with display system scene with frequency determination sub-module
Value of calculation
Wherein, RS CINR are the carrier-in-interference noise ratio of the Serving cell reference signal, RSRPSFor Serving cell
RSRP, I represent adjacent area interfering signal power, I=(I1+I2)*PS, interference of the RS to RSPDSCH is done to RS
DisturbRSRPiFor RS deviation post identicals adjacent area field intensity value, RSRPjIt is inconsistent for RS deviation posts
The receiving power of adjacent area B class symbol PDSCH each RE, PloadFor cell load, N makes an uproar for receiver bottom, PS=with the band of frequency part
Width/overall system bandwidth.
The determining module includes alien frequencies determination sub-module,
The alien frequencies determination sub-module, for, under inter-frequency networking system scenarios, calculating down channel quality Equivalent Calculation
Value
Wherein, RS CINR are the carrier-in-interference noise ratio of the Serving cell reference signal, RSRPSFor Serving cell
RSRP, I represent adjacent area interfering signal power, I=I1+I2, interference of the RS to RSInterference of the PDSCH to RSRSRPiFor RS deviation post identicals homogeneous-frequency adjacent-domain field intensity value, RSRPjIt is inconsistent for RS deviation posts
Homogeneous-frequency adjacent-domain B class symbol PDSCH each RE receiving power, PloadFor cell load, N makes an uproar for receiver bottom.
Present invention determine that the cell reference signals of the method and device of channel quality, acquisition Serving cell and its each adjacent area are strong
Degree (Reference signal received power, RSRP)；According to the Serving cell of the acquisition and its each adjacent area
RSRP, determines the down channel quality of the server cell.By the present invention, using Serving cell and its each adjacent area
RSRP determines the channel quality of Serving cell, and the letter under network high load condition cannot be accurately determined in solving prior art
The problem of road quality, such that it is able to find channel interference problem in time in the basic optimizing phase of system, and passes through coverage optimization
Channel quality is improved, so as to improve network covering property.
Description of the drawings
Fig. 1 is a kind of method flow schematic diagram for determining channel quality of the embodiment of the present invention；
Adjacent area schematic diagrams of the Fig. 2 for a kind of cellular communication system of the embodiment of the present invention；
Fig. 3 is a kind of frequency distribution schematic diagram using full identical networking of the embodiment of the present invention；
Fig. 4 is the flow chart of the method that down channel quality is determined in complete same display system according to the embodiment of the present invention one；
Fig. 5 is to distribute schematic diagram with the lower system bandwidth of frequency according to the part of the embodiment of the present invention two；
Fig. 6 is with adjacent area in display system and frequency point allocation schematic diagram according to the part of the embodiment of the present invention two；
Fig. 7 is the flow chart of the method for determining down channel quality according to the part of the embodiment of the present invention two with display system；
Fig. 8 is the frequency assignment chart according to three forth generation mobile communication system of the embodiment of the present invention；
Fig. 9 is adjacent area and frequency point allocation schematic diagram in alien frequencies system according to the embodiment of the present invention three；
Figure 10 is the flow chart of the method that down channel quality is determined according to the alien frequencies system of the embodiment of the present invention three；
Figure 11 is the device of the down channel quality of the determination forth generation mobile communication system according to the embodiment of the present invention four
Structural representation.
Specific embodiment
The present invention basic thought be：Obtain the RSRP of Serving cell and its each adjacent area；It is little according to the service of the acquisition
Area and its RSRP of each adjacent area, determine the down channel quality of the server cell
Fig. 1 is a kind of method flow schematic diagram for determining channel quality of the embodiment of the present invention, as shown in figure 1, the method bag
Include：
Step 101：Obtain cell reference signals intensity RSRP of Serving cell and its each adjacent area；
Step 102：According to the Serving cell and its RSRP of each adjacent area of the acquisition, determine under the server cell
Row channel quality.
The forth generation mobile communication system of application is divided into three kinds at present, and one kind is complete same display system, i.e., whole communication system
In only include a center frequency point；One kind is that the same display system in part, i.e. system include multiple center frequency points, the system frequency of cell
Exist in section with frequency overlapping part, for example, 2 cells adopt frequency range 2350-2370MHz, 2360-2380MHz, 2 cell frequency ranges
There is the part of 2360-2370 with frequency；Another kind is inter-frequency networking, and multiple center frequency point frequency ranges of employing are not overlapped；Hereinafter will
Introduced entirely with the method that down channel quality is determined in display system using multiple the present embodiment.
Optionally, for complete same display system, Serving cell includes a center frequency point, described according to the Serving cell for obtaining
And its RSRP of each adjacent area, determine that the down channel quality of the server cell is：
Calculate down channel quality Equivalent Calculation value (Downlink Channel Quality Equivalent
Evaluation, CQEE),
Wherein, RS CINR are the carrier-in-interference noise ratio of the Serving cell reference signal, RSRPSFor Serving cell
RSRP, I represent adjacent area interfering signal power, I=I1+I2, interference of the RS to RSInterference of the PDSCH to RSRSRPiFor RS deviation post identicals adjacent area field intensity value, RSRPjFor the inconsistent neighbour of RS deviation posts
The receiving power of area B class symbol PDSCH each RE, PioadFor cell load, N makes an uproar for receiver bottom.
Optionally, for the same display system in part, Serving cell includes N number of center bin, between adjacent area in system bandwidth
Presence partly overlaps, the networking mode of part alien frequencies, the Serving cell and its RSRP of each adjacent area according to acquisition, determines institute
The down channel quality for stating server cell is：
Calculate down channel quality Equivalent Calculation value
Wherein, RS CINR are the carrier-in-interference noise ratio of the Serving cell reference signal, RSRPSFor Serving cell
RSRP, I represent adjacent area interfering signal power, I=(I1+I2)*PS, interference of the RS to RSPDSCH is done to RS
DisturbRSRPiFor RS deviation post identicals adjacent area field intensity value, RSRPjIt is inconsistent for RS deviation posts
The receiving power of adjacent area B class symbol PDSCH each RE, PloadFor cell load, N makes an uproar for receiver bottom, PS=with the band of frequency part
Width/overall system bandwidth.
Optionally, for inter-frequency networking system, Serving cell includes multiple center bins, and the corresponding system of center frequency point
There is no overlap in bandwidth, adjacent area has alien frequencies, and the Serving cell and its RSRP of each adjacent area according to acquisition determines the clothes
Business device cell down channel quality be：
Calculate down channel quality Equivalent Calculation value
Wherein, RS CINR are the carrier-in-interference noise ratio of the Serving cell reference signal, RSRPSFor Serving cell
RSRP, I represent adjacent area interfering signal power, I=I1+I2, interference of the RS to RSInterference of the PDSCH to RSRSRPiFor RS deviation post identicals homogeneous-frequency adjacent-domain field intensity value, RSRPjIt is inconsistent for RS deviation posts
Homogeneous-frequency adjacent-domain B class symbol PDSCH each RE receiving power, PloadFor cell load, N makes an uproar for receiver bottom.
The present invention also correspondingly proposes a kind of device for determining channel quality, and the device includes：Acquisition module and determination
Module；Wherein,
The acquisition module, for obtaining the RSRP of Serving cell and its each adjacent area；
The determining module, is coupled with the acquisition module, for the Serving cell that obtained according to the acquisition module and
The RSRP of its each adjacent area, determines the down channel quality of the server cell.
Optionally, the determining module include it is complete with frequency determination sub-module,
It is described complete with frequency determination sub-module, in complete same display system (Serving cell includes a center frequency point) scene
Under, calculate down channel quality Equivalent Calculation valueWherein, RSCINR is the clothes
The carrier-in-interference noise ratio of business cell reference signals, RSRPSFor the RSRP of Serving cell, I represents adjacent area interfering signal power, I
=I1+I2, interference of the RS to RSInterference of the PDSCH to RSRSRPiFor RS bits of offset
Put identical adjacent area field intensity value, RSRPjFor the receiving power of inconsistent adjacent area B class symbol PDSCH each RE of RS deviation posts,
PloadFor cell load, N makes an uproar for receiver bottom.
Optionally, the determining module includes part with frequency determination sub-module,
The part with frequency determination sub-module, in the same display system in part, (Serving cell includes more than one center frequency
In the case of point, exist in the system bandwidth between adjacent area partly overlap, the networking mode of part alien frequencies) under scene, under calculating
Row channel quality Equivalent Calculation value
Wherein, RS CINR are the carrier-in-interference noise ratio of the Serving cell reference signal, RSRPSFor Serving cell
RSRP, I represent adjacent area interfering signal power, I=(I1+I2)*PS, interference of the RS to RSPDSCH is done to RS
DisturbRSRPiFor RS deviation post identicals adjacent area field intensity value, RSRPjIt is inconsistent for RS deviation posts
The receiving power of adjacent area B class symbol PDSCH each RE, PloadFor cell load, N makes an uproar for receiver bottom, PS=with the band of frequency part
Width/overall system bandwidth.
Optionally, the determining module includes alien frequencies determination sub-module,
The alien frequencies determination sub-module, for (Serving cell includes multiple center bins, and center in inter-frequency networking system
There is no overlap in the corresponding system bandwidth of frequency, adjacent area has alien frequencies) under scene, calculate down channel quality Equivalent Calculation value
Wherein, RS CINR are the carrier-in-interference noise ratio of the Serving cell reference signal, RSRPSFor Serving cell
RSRP, I represent adjacent area interfering signal power, I=I1+I2, interference of the RS to RSInterference of the PDSCH to RSRSRPiFor RS deviation post identicals homogeneous-frequency adjacent-domain field intensity value, RSRPjIt is inconsistent for RS deviation posts
Homogeneous-frequency adjacent-domain B class symbol PDSCH each RE receiving power, PloadFor cell load, N makes an uproar for receiver bottom.
It should be noted that being difficult to by the RSRP or RSSINR of drive test low-load Serving cell compared in prior art
The quality of the down channel of Serving cell under network high load condition is predicted exactly, is determined by the method that the present invention is provided
The quality of Traffic Channel, can reflect the matter of the down channel of Serving cell under network high load condition truly, exactly
Amount, in this, as coverage optimization foundation, can be that the interference level of down channel in high load capacity network and performance evaluation are provided with
The evaluation measures of effect.
Preferably, in implementation process, can be, but not limited to pass through drive test in networking stage of system, basic optimizing phase
Mode, obtain in real time the RSRP of Serving cell and its each adjacent area, according to the real-time Serving cell for obtaining and its each adjacent area
RSRP calculate down channel quality equivalence value (the Downlink Channel Quality Equivalent of the Serving cell
Evaluation, CQEE), using down channel quality equivalence value CQEE as the real-time of the down channel quality for weighing Serving cell
Value parameter, what is calculated due to CQEE values is interference value under certain network load, is not caused by the change of real network load
The inconsistent impact of measured value.And the interference of test terminal test changes with network load.So, not only can be intuitively
Serving cell down channel quality is shown, and had both considered that Serving cell and its CQEE of adjacent area will not receive offered load feelings
The change of condition and occur significantly to change, it is also contemplated that impact of the adjacent area to Serving cell so that it is determined that down channel quality more
Plus accurately.
In implementation process, to determining that CQEE instantaneous values judge every time, and corresponding adjustment can be made, for example, be adjusted
The coverage of whole Serving cell home base station, so as to improve the down channel quality of Serving cell.
In implementation process, the instantaneous value CQEE that above-mentioned tune increases and determines Traffic Channel quality after adjustment is repeated,
The distribution situation of CQEE in statistics predetermined period, it is possible to determine the disturbed condition of cell RS signal, such as CQEE values in the cycle
Less than -2dB, and more than n sampled point under, determine that the region has the interference for needing optimization, persistently adjust further according to CQEE statistics
It is whole, until the disturbed condition of cell RS signal produces a desired effect, for example, the reality through adjusting repeatedly and confirming RS signal qualitys
Duration CQEE, counts number of times of the CQEE in predetermined time interval less than -3dB, when interior CQEE at preset time intervals less than -
When the number of times of 3dB accounts for the percentage ratio of all number of times of statistics less than 2%, down channel quality just produces a desired effect.
In sum, CQEE algorithms are equivalent according to the down channel quality that the RSRP of Serving cell and its each adjacent area determines
Value, so as to provide convenience for network optimization, can intuitively show Serving cell down channel quality, be follow-up
Network optimization provide convenience.
Below with reference to accompanying drawing and in conjunction with the embodiments describing the present invention in detail.It should be noted that not conflicting
In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
Embodiment one
Fig. 2 is a kind of adjacent area schematic diagram of cellular communication system of the embodiment of the present invention, shows the clothes of cellular communication system
Business cell 1 and its six adjacent areas (adjacent area 2 to adjacent area 7).Fig. 3 is a kind of frequency using full identical networking point of the embodiment of the present invention
With schematic diagram, Fig. 4 be according to embodiments of the present invention one complete same display system in determine down channel quality method flow chart,
As shown in figure 4, the flow process includes：
Step 401：Obtain the Serving cell of current drive test and its RSRP of adjacent area.
As a example by Serving cell 1 and its adjacent area with reference to shown in Fig. 1, the RSRP for obtaining Serving cell 1 by drive test is
RSRP1, the RSRP that each adjacent area of cell 1 is obtained by drive test is respectively RSRP2、RSRP3、……、RSRP7。
Step 402：Calculate jamming power sum of each adjacent area to Serving cell RS
In implementation process, can be, but not limited to calculate using method as follows
Wherein, in above formula operator " ^ " is accorded with for power operation.
Step 403：Calculate the down channel quality of cell 1
Here, RSRPsFor the RSRP absolute powers of Serving cell, unit is mW, RSRP1For the RSRP absolute powers of cell 1
Value, unit is mW.
The said method that the present embodiment is provided, it is adaptable to the full forth generation mobile communication system with frequency, entirely with the of frequency
The networking of four Generation Mobile Communication Systems or basic optimizing phase, down channel quality is determined using said method, can be in time
It was found that the interference problem of down channel, thus predicts the interference problem of the down channel under network high load condition exactly,
Down channel quality is improved by coverage optimization.
Embodiment two
Method of the present embodiment introductory section with down channel quality is determined in display system.Fig. 5 is according to present invention enforcement
The part of example two with the lower system bandwidth distribution schematic diagram of frequency, Fig. 6 be according to embodiments of the present invention two part with adjacent in display system
Area and frequency point allocation schematic diagram, Fig. 7 are the sides that according to embodiments of the present invention two part determines down channel quality with display system
The flow chart of method, as shown in fig. 7, the flow process includes：
Step 701：Obtain the Serving cell of current drive test and its RSRP of adjacent area.
By taking the Serving cell 1 shown in Fig. 6 and its adjacent area as an example, the RSRP for obtaining Serving cell 1 by drive test is RSRP1,
The RSRP that each adjacent area of cell 1 is obtained by drive test is respectively RSRP2、RSRP3、……、RSRP7。
Step 702：Determine Serving cell center frequency point and presence part with frequency adjacent area, with the service shown in Fig. 6
As a example by cell 1 and its adjacent area, Serving cell 1 uses frequency F1, cell 2,4 and 6 to use frequency F2, exists and the overlapping frequency ranges of F1,
That is, part is with frequency.With ratio P of frequencyS=with the bandwidth/overall system bandwidth of frequency part.
Step 703：Calculate jamming power sum of each adjacent area to Serving cell RS, in implementation process, can with but not
It is limited to calculate using method as follows：
∑RSRPPart is with frequency=Ps* (10^ (RSRP2/10)+10^(RSRP4/10)+10^(RSRP6/10))
Step 704：Determine the down channel quality of Serving cell
Here, RSRPSFor the RSRP absolute powers of Serving cell, unit is mW, RSRP1For the RSRP absolute powers of cell 1
Value, unit is mW.
The said method that the present embodiment is provided, it is adaptable to partly with the forth generation mobile communication system of frequency, in part with frequency
Forth generation mobile communication system networking or the basic optimizing phase, down channel quality is determined using said method, can and
When ground find descending interference problem, thus predict the descending interference problem under network high load condition exactly, by covering
Optimization improves the quality of service of down channel.
Embodiment three
Fig. 8 is the frequency assignment chart of three forth generations mobile communication system according to embodiments of the present invention, is used between different districts
Different center frequency points, non-overlapping part between frequency range, complete alien frequencies between frequency.Fig. 9 be according to embodiments of the present invention three it is different
Adjacent area and frequency point allocation schematic diagram in display system, Figure 10 are that according to embodiments of the present invention three alien frequencies system determines down channel matter
The flow chart of the method for amount, as shown in Figure 10, the flow process includes：
Step 1001：Obtain the RSRP of the peripheral cell of the Serving cell and its configuring adjacent cell relation of current drive test.
By taking the Serving cell 1 shown in Fig. 9 and its peripheral cell as an example, the RSRP for obtaining Serving cell 1 by drive test is
RSRP1, the RSRP that each homogeneous-frequency adjacent-domain of cell 1 is obtained by drive test is respectively RSRP8、RSRP9、……、RSRP13。
Step 1002：Determine the center frequency point of Serving cell and there is the cell consistent with this center of housing estate frequency, with
Figure：As a example by two layers of cell of Serving cell 1 shown in 9 and its surrounding, determine Serving cell 1 and two layers of adjacent area cell 8,9,10,11,
12nd, 13 with frequency.
Step 1003：Calculate jamming power sum of each adjacent area to Serving cell RS, in implementation process, can with but not
It is limited to calculate using method as follows：
Step 1004：Determine the down channel quality of Serving cell
Here, RSRPSFor the RSRP absolute powers of Serving cell, unit is mW, RSRP1For the RSRP absolute powers of cell 1
Value, unit is mW.
The said method that the present embodiment is provided, it is adaptable to the forth generation mobile communication system of alien frequencies, in the forth generation of alien frequencies
The networking of mobile communication system or basic optimizing phase, down channel quality is determined using said method, can be found in time
Descending interference problem, thus predicts the descending interference problem under network high load condition exactly, is improved by coverage optimization
The quality of service of down channel.
Example IV
Figure 11 is the device of the down channel quality of according to embodiments of the present invention four determination forth generation mobile communication system
Structural representation, the device can realize above-described embodiment one to case study on implementation three provide determination forth generation mobile communication system
The method of the down channel quality of system.
The device includes acquisition module and determining module, wherein it is determined that module is specifically included：Entirely with frequency determination sub-module,
For being complete same display system in cell mobile communication systems, in the case that Serving cell includes a frequency, by case study on implementation
Scheme described in one determines the down channel quality of Serving cell；Partly with frequency determination sub-module, in cellular mobile communication
System is the same display system in part, and Serving cell includes multiple center frequency points, and the system bandwidth of different districts has situation about overlapping
Under, the down channel quality of Serving cell is determined by the scheme described in case study on implementation two；Alien frequencies determination sub-module, in honeybee
Cellular mobile communication system is alien frequencies system, and Serving cell includes multiple center frequency points, and the system bandwidth of different districts is nonoverlapping
In the case of, the down channel quality of Serving cell is determined by the scheme described in case study on implementation three.
The said apparatus that the present embodiment is provided, go for forth generation mobile communication system, in networking or basis optimization
Stage determines down channel quality using said apparatus, can find the interference problem of down channel in time, thus exactly
The interference problem of Traffic Channel of the prediction under network high load condition, improves Traffic Channel by coverage optimization and frequency optimization
Quality of service.
To sum up, by technical scheme, using Serving cell and its RSRP of each adjacent area, determine Serving cell
Down channel quality, down channel quality under network high load condition cannot be accurately determined in solving prior art
Problem, finds down channel interference problem in time such that it is able to the basic optimizing phase in system, and passes through coverage optimization and frequency
Rate optimization reduces down channel interference, and the interference level and performance evaluation for down channel in high load capacity network provides assessment handss
Section.
Obviously, those skilled in the art should be understood that each module or each step of the above-mentioned present invention can be with general
Computing device realizing, they can be concentrated on single computing device, or are distributed in multiple computing devices and are constituted
Network on, alternatively, they can be realized with the executable program code of computing device, it is thus possible to they are stored
In the storage device by computing device performing, and in some cases, can be with shown in performing different from order herein
The step of going out or describe, or they are fabricated to each integrated circuit modules respectively, or by the multiple modules in them or
Step is fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware and software combination.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
The above, only presently preferred embodiments of the present invention is not intended to limit protection scope of the present invention.
Claims (8)
1. it is a kind of determine channel quality method, it is characterised in that the method includes：
Obtain cell reference signals intensity RSRP of Serving cell and its each adjacent area；
According to the Serving cell and its RSRP of each adjacent area of the acquisition, the down channel quality of the Serving cell is determined；
Wherein, the Serving cell and its RSRP of each adjacent area according to acquisition, determines the down channel matter of the Serving cell
Measure and be：
Calculate down channel quality Equivalent Calculation value
Wherein, RS CINR are the carrier-in-interference noise ratio of the Serving cell reference signal, RSRPSFor the RSRP of Serving cell, I
Adjacent area interfering signal power is represented, N makes an uproar for receiver bottom.
2. method according to claim 1, it is characterised in that
For complete same display system, the I=I1+I2, interference of the RS to RSInterference of the PDSCH to RSRSRPiFor RS deviation post identicals adjacent area field intensity value, RSRPjFor the inconsistent neighbour of RS deviation posts
The receiving power of area B class symbol PDSCH each RE, PloadFor cell load.
3. method according to claim 1, it is characterised in that
For the same display system in part, the I=(I1+I2)*PS, interference of the RS to RSInterference of the PDSCH to RSRSRPiFor RS deviation post identicals adjacent area field intensity value, RSRPjFor the inconsistent neighbour of RS deviation posts
The receiving power of area B class symbol PDSCH each RE, PloadFor cell load, PS=with the bandwidth/overall system bandwidth of frequency part.
4. method according to claim 1, it is characterised in that
For inter-frequency networking system, the I=I1+I2, interference of the RS to RSInterference of the PDSCH to RSRSRPiFor RS deviation post identicals homogeneous-frequency adjacent-domain field intensity value, RSRPjIt is inconsistent for RS deviation posts
Homogeneous-frequency adjacent-domain B class symbol PDSCH each RE receiving power, PloadFor cell load.
5. it is a kind of determine channel quality device, it is characterised in that the device includes：Acquisition module and determining module；Wherein,
The acquisition module, for obtaining the RSRP of Serving cell and its each adjacent area；
The determining module, for the Serving cell that obtained according to the acquisition module and its RSRP of each adjacent area, it is determined that described
The down channel quality of Serving cell；
The Serving cell and its RSRP of each adjacent area according to acquisition, determines that the down channel quality of the Serving cell is：
Calculate down channel quality Equivalent Calculation value
Wherein, RS CINR are the carrier-in-interference noise ratio of the Serving cell reference signal, RSRPSFor the RSRP of Serving cell, I
Adjacent area interfering signal power is represented, N makes an uproar for receiver bottom.
6. device according to claim 5, it is characterised in that the determining module include it is complete with frequency determination sub-module,
It is described complete with frequency determination sub-module, for under display system scene, calculating down channel quality Equivalent Calculation value entirelyWherein, RS CINR are the carrier-in-interference noise of the Serving cell reference signal
Than RSRPSFor the RSRP of Serving cell, I represents adjacent area interfering signal power, I=I1+I2, interference of the RS to RSInterference of the PDSCH to RSRSRPiFor RS deviation post identicals adjacent area field intensity value,
RSRPjFor the receiving power of inconsistent adjacent area B class symbol PDSCH each RE of RS deviation posts, PloadFor cell load, N is to connect
Make an uproar at receipts machine bottom.
7. device according to claim 5, it is characterised in that the determining module includes part with frequency determination sub-module,
The part calculates down channel quality Equivalent Calculation in part with display system scene with frequency determination sub-module
Value
Wherein, RS CINR are the carrier-in-interference noise ratio of the Serving cell reference signal, RSRPSFor the RSRP of Serving cell, I
Represent adjacent area interfering signal power, I=(I1+I2)*PS, interference of the RS to RSInterference of the PDSCH to RSRSRPiFor RS deviation post identicals adjacent area field intensity value, RSRPjFor the inconsistent neighbour of RS deviation posts
The receiving power of area B class symbol PDSCH each RE, PloadFor cell load, N makes an uproar for receiver bottom, PS=with the band of frequency part
Width/overall system bandwidth.
8. device according to claim 5, it is characterised in that the determining module includes alien frequencies determination sub-module,
The alien frequencies determination sub-module, for, under inter-frequency networking system scenarios, calculating down channel quality Equivalent Calculation value
Wherein, RS CINR are the carrier-in-interference noise ratio of the Serving cell reference signal, RSRPSFor the RSRP of Serving cell, I
Represent adjacent area interfering signal power, I=I1+I2, interference of the RS to RSInterference of the PDSCH to RSRSRPiFor RS deviation post identicals homogeneous-frequency adjacent-domain field intensity value, RSRPjIt is inconsistent for RS deviation posts
Homogeneous-frequency adjacent-domain B class symbol PDSCH each RE receiving power, PloadFor cell load, N makes an uproar for receiver bottom.
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