CN102958090B - Method and device for evaluating channel performance - Google Patents
Method and device for evaluating channel performance Download PDFInfo
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- CN102958090B CN102958090B CN201110246828.1A CN201110246828A CN102958090B CN 102958090 B CN102958090 B CN 102958090B CN 201110246828 A CN201110246828 A CN 201110246828A CN 102958090 B CN102958090 B CN 102958090B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/06—Testing, supervising or monitoring using simulated traffic
Abstract
The invention discloses a method and a device for evaluating channel performance. The method includes: obtaining static index valve for evaluating channel performance by the aid of static simulation; determining dynamic index value corresponding to the static index valve according to correspondence between the dynamic index value built by dynamic pre-simulation and the static index value; and evaluating channel performance on the basis of the static index valve and the corresponding dynamic index value. Compared with the existing dynamic simulation technology, evaluation efficiency can be improved greatly while performance reliability is guaranteed.
Description
Technical field
The present invention relates to a kind of wireless communication technology field, particularly relate to a kind of channel performance appraisal procedure and device.
Background technology
In the Simulation Evaluation of LTE (Long Term Evolution, Long Term Evolution) Network planning software, expect to realize system emulation performance priority, take into account simulation efficiency simultaneously.Conventional system simulation method has dynamic simulation and STATIC SIMULATION etc.
Dynamic system simulation embodies the processing gain etc. of the time-varying characteristics of channel, antenna transmission mode and detection algorithm, the results contrast of dynamic simulation reliably reflects real network performance, TD-LTE (TD-SCDMA Long Term Evolution, TD-SCDMA Long Term Evolution) the modal mode that adopts in system emulation, but efficiency is lower; Static system emulation is in analysis mobile communication system power-carrying and covering, system interference level, have good effect in interference mutually between system, but, STATIC SIMULATION ignores the time-varying characteristics of channel, cannot embody the processing gain of transmission mode and detection algorithm.
In order to realize control channel as PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) assessment, the mode of usual employing dynamic simulation obtains some parameters of the control channel of emulation, and carries out the Performance Evaluation that controls based on these parameters.
For the assessment of control channel, general dynamical system is had to emulate because modeling comparison becomes more meticulous equally, and the problem that the simulation efficiency existed is lower.And static system emulation can not reflect the dynamic decline of channel in real system due to it, and system is along with the change procedure etc. of time, is not suitable for the assessment of control channel equally.
Summary of the invention
The invention provides a kind of channel performance appraisal procedure and device, while efficient assessment obtains the performance of control channel, improve the Simulation Evaluation efficiency for control channel.
The invention provides a kind of channel performance appraisal procedure, for assessment of control channel performance, comprising:
By STATIC SIMULATION, obtain the Static State Index value for assessment of channel performance;
According to the dynamic indicator value of channel set up by dynamic pre-emulation and the corresponding relation of Static State Index value, determine the dynamic indicator value that the Static State Index value that obtains is corresponding;
Based on the dynamic indicator value of the Static State Index value obtained and correspondence thereof, carry out channel performance assessment.
The present invention also provides a kind of channel performance apparatus for evaluating, for assessment of control channel performance, comprising:
STATIC SIMULATION unit, for by STATIC SIMULATION, obtains the Static State Index value for assessment of channel performance;
Sound map unit, for according to the dynamic indicator value of channel set up by dynamic pre-emulation and the corresponding relation of Static State Index value, determines the dynamic indicator value that the Static State Index value that obtains is corresponding;
Performance Evaluation unit, for the dynamic indicator value based on the Static State Index value obtained and correspondence thereof, carries out channel performance assessment.
Utilize channel performance appraisal procedure provided by the invention and device, there is following beneficial effect: for control channel, give one more efficient performance estimating method in planning software; The user gone out based on this interface statistics and system-level control channel performance can reach the index request that dynamic simulation exports preferably; The method has taken into account efficiency and the simulation performance of system emulation effectively, relative to existing Dynamic Simulation Technology, can obtain and promote significantly, thus ensure that the efficiency improving Simulation Evaluation on the basis of its performance reliability in efficiency.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention channel performance appraisal procedure flow chart;
Fig. 2 sets up sound interface procedure schematic diagram in the embodiment of the present invention;
Fig. 3 is PDCCH Performance Evaluation process schematic in the embodiment of the present invention;
Fig. 4 is embodiment of the present invention channel performance apparatus for evaluating structure chart.
Embodiment
Below in conjunction with drawings and Examples, channel performance appraisal procedure provided by the invention and device are illustrated in greater detail.
In planning software application, more efficient Simulation Evaluation method subject matter to be solved is exactly the problem adopting dynamic simulation assess effectiveness lower.Obvious inefficient problem existing for this dynamic evaluation, for control channel as the Simulation Evaluation of PDCCH channel in same inevitable.How the technical problem that the embodiment of the present invention will solve, namely carry out the performance of evaluation control channel by this kind of efficient appraisal procedure, thus improve the Simulation Evaluation efficiency for control channel.
The channel performance appraisal procedure that the embodiment of the present invention provides, for assessment of the performance of control channel, as shown in Figure 1, comprising:
Step 101, by STATIC SIMULATION, obtains the Static State Index value for assessment of channel performance;
The embodiment of the present invention with STATIC SIMULATION mode artificial network system scenarios, thus can obtain the Static State Index value for assessment of channel performance.
Step 102, according to the dynamic indicator value of channel set up by dynamic pre-emulation and the corresponding relation of Static State Index value, determines the dynamic indicator value that the Static State Index value that obtains is corresponding;
Applicant finds, if emulate same scene, namely consolidated network system is emulated, then dynamic indicator value and Static State Index value have specific mapping relations, dynamic simulation mode both can export Static State Index value, also dynamic indicator value can be exported, and STATIC SIMULATION mode only can export Static State Index value, the embodiment of the present invention is before carrying out STATIC SIMULATION, by dynamic pre-emulation mode, establish the dynamic indicator value of control channel and the corresponding relation of Static State Index value, thus establish sound Map Interface, by STATIC SIMULATION mode when not needing to carry out dynamic simulation, dynamic indicator value can be obtained equally.
Step 103, based on the dynamic indicator value of the Static State Index value obtained and correspondence thereof, carries out channel performance assessment.
The embodiment of the present invention is for control channel, give one more efficient performance estimating method in planning software, owing to setting up sound Map Interface in advance, the user gone out based on this interface statistics and system-level control channel performance can reach the index request that dynamic simulation exports preferably; Which has taken into account efficiency and the simulation performance of system emulation effectively, relative to existing Dynamic Simulation Technology, can obtain and promote significantly, thus ensure that the efficiency improving Simulation Evaluation on the basis of its performance reliability in efficiency.
The control channel that embodiment of the present invention method uses is the channel of transmission user control information, uses when control channel is used for dynamic dispatching multiple user, therefore simultaneously could the performance of Efficient Evaluation control channel in conjunction with Static State Index parameter and dynamic indicator parameter.Preferably, in the present embodiment, control channel is physical downlink control channel PDCCH.
Above-mentioned STATIC SIMULATION obtains the Static State Index value for assessment of control channel performance, it can be the available Static State Index value of all kinds of STATIC SIMULATION, the mapping relations that sound interface is set up can be all kinds of Static State Index value and dynamic indicator value, specifically can need to select according to control channel performance evaluation.
Preferably, emulate by dynamically pre-the corresponding relation setting up dynamic indicator value and Static State Index value in the embodiment of the present invention, specifically comprise:
By dynamically pre-emulation, export inhomogeneous Static State Index value and inhomogeneous dynamic indicator value;
Select inhomogeneity Static State Index value and predetermined first kind dynamic indicator value as different dimensions, and the dimension corresponding to Static State Index value carry out interval section;
In the grid that section is formed afterwards, for often kind of value of first kind dynamic indicator value, the predetermined Equations of The Second Kind dynamic indicator value relevant to first kind dynamic indicator value is added up, obtains inhomogeneity Static State Index value, relation plane between predetermined first kind dynamic indicator value and predetermined Equations of The Second Kind dynamic indicator value.
When evaluating control channel performance, statistical value corresponding when usual consideration is repeatedly dispatched, therefore in the embodiment of the present invention dynamically in pre-emulation mode, the Static State Index value exported for each user and dynamic indicator value, adopt the mode of multiple dimension being carried out to other index of section statistics, set up the relation plane of sound desired value, the performance of control channel can be evaluated better.Mode based on various discrete value opening relationships plane can adopt existing mode, as determined relation between each sampled point and carrying out the modes such as smoothing processing, no longer describes in detail here.
Preferably, described inhomogeneous Static State Index value comprises: C/I and I
0/ N
0, wherein, C is the received power of user, I=I
0+ N
0, I
0for system interference, N
0for making an uproar at the bottom of system; Predetermined first kind dynamic indicator value is the polymerization grade L of control channel, and predetermined Equations of The Second Kind dynamic indicator value is the distribution proportion of L, or is the average of signal to noise ratio snr under often kind of L.According to current mechanism, if signal to noise ratio snr under determining each polymerization grade L, by control channel link curve, can map and obtain corresponding Block Error Rate, therefore, based on the foundation of above-mentioned the relation between motion and rest, can control channel performance evaluation be carried out.
Preferably, emulate by dynamically pre-the corresponding relation setting up dynamic indicator value and Static State Index value, comprise further: select inhomogeneous Static State Index value, carry out interval section as different dimensions; In the grid that section is formed afterwards, predetermined 3rd class dynamic indicator value is added up, obtain the relation plane between inhomogeneity Static State Index value, predetermined 3rd class dynamic indicator value.
Preferably, predetermined 3rd class dynamic indicator value is the scheduling frequency β of user:
The scheduling frequency β of this user is used for using when evaluating control channel performance.
Below for PDCCH channel, provide channel performance appraisal procedure detailed process of the present invention.
1) sound interface is set up by dynamically emulating in advance
Set up the corresponding relation that namely sound interface sets up dynamic indicator value and Static State Index value.
The embodiment of the present invention carries out dynamically pre-emulation based on PDCCH channel, can pass through the relation of dynamically pre-emulation mode assessment of static index amount and dynamic indicator amount, analyzes extraction and obtains sound interface.So-called pre-emulation, can be understood as is exactly a dynamic simulation, and the object of pre-emulation obtains sound interface by pre-simulated extraction, for follow-up more efficient evaluation process is prepared.Preferably, the inhomogeneous Static State Index value exported when dynamically emulating in advance comprises: C/I and I
0/ N
0deng, certainly can also comprise other Static State Index value, wherein, C is the received power of user, I=I
0+ N
0, I
0for system interference, N
0for making an uproar at the bottom of system.The inhomogeneous dynamic indicator value dynamically exported during pre-emulation comprises: the detection signal-to-noise ratio SNR of polymerization grade L, PDCCH of PDCCH, the number of times etc. that is scheduled of each UE, certainly, can also comprise other dynamic indicator value.
The dynamically pre-simulation process of PDCCH Performance Evaluation is as follows:
1. PDCCH resource is distributed;
Under simulated environment, determine available PDCCH resource according to simulating scenes, for the user of scheduling, its PDCCH degree of polymerization grade is selected according to the CQI of user feedback.
Current PDCCH degree of polymerization grade has 1,2,4 and 8 four kind, according to CQI (Channel QualityIndicator, channel quality indicates) amount of information determine by current mechanism the polymerization grade that uses thus to determine the PDCCH channel format that will adopt.
2. according to DCI (Downlink Control Information, the Downlink Control Information) form of different transmission mode determination dispatched users, different resource allocation type is determined;
Different DCI format, is assigned with dissimilar resource.After determining PDCCH channel format, determine the resource of specifically distributing that type according to the DCI format of dispatched users.
3. judge that can the RB (Resource Block, Resource Block) of emulation present sub-frame participate in book frame frequency territory Resourse Distribute, during reservation, in domain scheduling RB queue, become the RB of distribution of work PDCCH, delete PDCCH and distribute unsuccessful RB;
After determining above-mentioned PDCCH polymerization grade and resource allocation type, when determining the RB into dispatched users distribution, also to determine whether this RB can be used by this dispatched users further, thus determine whether to be allocated successfully.
4. institute's dispatched users resource of distributing at PDCCH, eNode B sends PDCCH dispatch and corresponding downlink service data in same subframe;
5. the dynamic indicator value and Static State Index value that are used for the assessment of PDCCH channel performance is exported.
The embodiment of the present invention in dynamic pre-simulation process, carrier interference ratio C/I and I of each UE in static statistics output system
0/ N
0in dynamic statistics amount output system each UE the moment eNode B that is scheduled send PDCCH channel degree of polymerization grade (in agreement the regulation PDCCH CCE degree of polymerization have 1,2,4,8 four kind of grade), the number of times etc. that is scheduled of detection signal-to-noise ratio SNR, each UE, by analyzing C/I, I
0/ N
0and the relation detected between the statistic such as SNR, scheduling times, extracts several relation planes and obtains sound emulation interface.
Preferably, as shown in Figure 2, by dynamically pre-emulation, the Static State Index value of output includes but not limited to C/I, I
0/ N
0, the dynamic indicator value of output includes but not limited to the detection SNR on the degree of polymerization (i.e. polymerization grade) of PDCCH, PDCCH channel, the number of times that is scheduled of each UE.
The extracting method of the sound interface data in the embodiment of the present invention is as follows:
1. according to C/I, I of dynamic pre-simulation data
0/ N
0, the degree of polymerization, respectively with C/I, I
0/ N
0as dimension one and dimension two, first carry out interval grid section according to dimension one C/I, then for the sampled point in each C/I interval, according to dimension two I
0/ N
0carry out grid section, finally for each C/I grid and I
0/ N
0the degree of polymerization in grid is analyzed, and adds up the distribution proportion of the degree of polymerization in each grid of being formed in the section of above-mentioned two dimensions, forms " distribution proportion VS a degree of polymerization & C/I & I for the degree of polymerization
0/ N
0" the four dimensional relationship plane.
2. according to C/I, I that dynamic simulation exports
0/ N
0, the degree of polymerization, SNR, respectively with C/I, I
0/ N
0, the degree of polymerization as dimension one, dimension two and dimension three, to C/I, I
0/ N
0carry out interval section, different C/I, I under adding up often kind of degree of polymerization
0/ N
0sNR average in the grid that section is formed, obtains " SNR VS degree of polymerization & C/I & I
0/ N
0" the four dimensional relationship plane.
3. according to C/I, I that dynamic simulation exports
0/ N
0with the recorded information of scheduling times, respectively with C/I, I
0/ N
0as dimension one, dimension two, scheduling times is cut into slices, analyze C/I, I
0/ N
0with user scheduling frequency
secondary/user/second, scheduling total degree is here the scheduling total degree of user in grid) relation, obtain " user scheduling frequency VS C/I & an I
0/ N
0" three-dimensional relationship plane.
2) by STATIC SIMULATION, obtain the Static State Index value for assessment of PDCCH performance, according to the corresponding relation of the dynamic indicator value set up by dynamic pre-emulation and Static State Index value, determine the dynamic indicator value that the Static State Index value that obtains is corresponding; Based on the dynamic indicator value of the Static State Index value obtained and correspondence thereof, carry out PDCCH Performance Evaluation, as shown in Figure 3, specifically comprise:
1. planning software module adopts STATIC SIMULATION mode, and emulation obtains user C/I and I
0/ N
0after, at " degree of polymerization ratio distribution VS degree of polymerization & C/I & I
0/ N
0" the four dimensional relationship figure on look into value, obtain the different polymerization degree ratio P of user respectively
u={ p
1, p
2, p
3, p
4}
2. planning software module adopts STATIC SIMULATION mode, and emulation obtains user C/I and I
0/ N
0after, at " SNRVS degree of polymerization & C/I & I
0/ N
0" relation plane looks into value, obtain the signal to noise ratio snr of user when different polymerization degree respectively
u={ SNR
1, SNR
2, SNR
3, SNR
4.
3. planning software correlation module adopts STATIC SIMULATION mode, obtains user C/I and I
0/ N
0after, at " the scheduling frequency VS C/I & I of user
0/ N
0" relation plane looks into value, obtain user scheduling frequency β
u.
4. according to the signal to noise ratio snr when different polymerization degree
u, by mapping the link curve of different polymerization degree PDCCH, obtain the Block Error Rate { Bler of user when different polymerization degree respectively
1, Bler
2, Bler
3, Bler
4.Foundation is with the signal to noise ratio snr during degree of polymerization
uit is prior art that mapping obtains the Block Error Rate of user when different polymerization degree, no longer describes in detail here.
5. according to the different polymerization degree ratio P of user
u={ p
1, p
2, p
3, p
4, different polymerization degree time Block Error Rate { Bler
1, Bler
2, Bler
3, Bler
4, calculate total Block Error Rate of user
6. according to the BLER of user
uand β
ucalculate scene (the network system scene of emulation, as a community etc.) PDCCH performance, total Block Error Rate of each user obtained is multiplied with the β of this user, the multiplied result of all users is sued for peace, the β sum of summed result and all users is divided by, according to division result assessment PDCCH performance, adopt and be formulated as
Embodiments provide the more efficient appraisal procedure of a kind of channel channel, i.e. the using method of sound interface.It exports C/I and I by STATIC SIMULATION assessment
0/ N
0, by mapping sound interface, obtaining the degree of polymerization of this user, detecting the information such as SNR and scheduling times, thus being obtained the PDCCH detection perform (BLER) of this user by mapping link interface.The detection perform of intra-cell users is carried out comprehensively, the detection perform of community PDCCH can be obtained, the detection perform of system PDCCH can be obtained further.
Based on same inventive concept, a kind of channel performance apparatus for evaluating is additionally provided in the embodiment of the present invention, the principle of dealing with problems due to these devices is similar to a kind of channel performance appraisal procedure, and therefore the enforcement of these equipment see the enforcement of method, can repeat part and repeat no more.
A kind of channel performance apparatus for evaluating, for assessment of control channel performance, as shown in Figure 4, comprising:
STATIC SIMULATION unit 401, for by STATIC SIMULATION, obtains the Static State Index value for assessment of channel performance;
Sound map unit 402, for according to the dynamic indicator value of channel set up by dynamic pre-emulation and the corresponding relation of Static State Index value, determines the dynamic indicator value that the Static State Index value that obtains is corresponding;
Performance Evaluation unit 403, for the dynamic indicator value based on the Static State Index value obtained and correspondence thereof, carries out channel performance assessment.
Preferably, described channel is physical downlink control channel PDCCH.
Preferably, sound map unit 402, emulates by dynamically pre-the corresponding relation setting up dynamic indicator value and Static State Index value, specifically comprises: by dynamically pre-emulation, export inhomogeneous Static State Index value and dynamic indicator value; Select inhomogeneity Static State Index value and predetermined first kind dynamic indicator value as different dimensions, and the dimension corresponding to Static State Index value carry out interval section; In the grid that section is formed afterwards, for often kind of value of first kind dynamic indicator value, the predetermined Equations of The Second Kind dynamic indicator value relevant to first kind dynamic indicator value is added up, obtains inhomogeneity Static State Index value, relation plane between predetermined first kind dynamic indicator value and predetermined Equations of The Second Kind dynamic indicator value.
Preferably, described inhomogeneous Static State Index value comprises: C/I and I
0/ N
0, wherein, C is the received power of user, I=I
0+ N
0, I
0for system interference, N
0for making an uproar at the bottom of system; Described predetermined first kind dynamic indicator value is the polymerization grade L of channel, and described predetermined Equations of The Second Kind dynamic indicator value is the distribution proportion of L, or is the average of signal to noise ratio snr under often kind of L.
Preferably, sound map unit 402, emulates by dynamically pre-the corresponding relation setting up dynamic indicator value and Static State Index value, specifically comprises: according to C/I, I of dynamic pre-simulation data
0/ N
0, L, SNR, respectively with C/I, I
0/ N
0, L as different dimensions, to C/I, I
0/ N
0carry out interval section, and the average of SNR in the grid that formed of cutting into slices under statistics often kind of L value, obtain SNR and L, C/I, I
0/ N
0between the four dimensional relationship plane; According to C/I, I of exporting during STATIC SIMULATION
0/ N
0, inquiry SNR and L, C/I, I
0/ N
0between the four dimensional relationship plane, obtain the SNR of user when Different L;
Performance Evaluation unit 403, based on the SNR of user when Different L, obtains the Block Error Rate of user when Different L; Obtain total Block Error Rate of this user according to the Block Error Rate of user when Different L, based on total Block Error Rate of users all in simulating scenes, carry out channel performance assessment.
Preferably, sound map unit 402, emulates by dynamically pre-the corresponding relation setting up dynamic indicator value and Static State Index value, comprises further:
According to C/I, I of dynamic pre-simulation data
0/ N
0, L, respectively with C/I, I
0/ N
0, L as different dimensions, to C/I, I
0/ N
0carry out interval section, add up the distribution proportion of often kind of L value in the grid that section is formed, obtain distribution proportion and L, C/I, I of L
0/ N
0between the four dimensional relationship plane; Then
C/I, I is exported according to during STATIC SIMULATION
0/ N
0, the distribution proportion of inquiry L and L, C/I, I
0/ N
0between the four dimensional relationship plane, obtain the distribution proportion of the Different L of user respectively;
Performance Evaluation unit 403, is multiplied the Block Error Rate of user when each L value with the distribution proportion of this L value, and sues for peace to all multiplied result, obtain total Block Error Rate of user.
Preferably, sound map unit 402, emulates by dynamically pre-the corresponding relation setting up dynamic indicator value and Static State Index value, comprises further: select inhomogeneous Static State Index value, carry out interval section as different dimensions; In the grid that section is formed afterwards, predetermined 3rd class dynamic indicator value is added up, obtain the relation plane between inhomogeneity Static State Index value, predetermined 3rd class dynamic indicator value.
Preferably, described predetermined 3rd class dynamic indicator value is the scheduling frequency β of user:
Preferably, sound map unit 402, concrete C/I, I according to dynamic pre-simulation data
0/ N
0, scheduling times N, respectively with C/I, I
0/ N
0carry out interval section as different dimensions, the scheduling frequency β of user in the grid that statistics section is formed, obtain β and the C/I of user, I
0/ N
0between three-dimensional relationship plane; C/I, I is exported according to during STATIC SIMULATION
0/ N
0, inquire about described three-dimensional relationship plane, obtain the β of user; Performance Evaluation unit 403, is multiplied total Block Error Rate of each user obtained with the β of this user, and the multiplied result of all users is sued for peace, the β sum of summed result and all users is divided by, according to division result assessment PDCCH performance.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (16)
1. a channel performance appraisal procedure, for assessment of control channel performance, is characterized in that, comprising:
By STATIC SIMULATION, obtain the Static State Index value for assessment of channel performance;
According to the dynamic indicator value of channel set up by dynamic pre-emulation and the corresponding relation of Static State Index value, determine the dynamic indicator value that the Static State Index value that obtains is corresponding;
Based on the dynamic indicator value of the Static State Index value obtained and correspondence thereof, carry out channel performance assessment;
Wherein, emulate by dynamically pre-the corresponding relation setting up dynamic indicator value and Static State Index value, specifically comprise:
By dynamically pre-emulation, export inhomogeneous Static State Index value and dynamic indicator value;
Select inhomogeneity Static State Index value and predetermined first kind dynamic indicator value as different dimensions, and the dimension corresponding to Static State Index value carry out interval section;
In the grid that section is formed afterwards, for often kind of value of first kind dynamic indicator value, the predetermined Equations of The Second Kind dynamic indicator value relevant to first kind dynamic indicator value is added up, obtains inhomogeneity Static State Index value, relation plane between predetermined first kind dynamic indicator value and predetermined Equations of The Second Kind dynamic indicator value.
2. the method for claim 1, is characterized in that, described channel is physical downlink control channel PDCCH.
3. the method for claim 1, is characterized in that, described inhomogeneous Static State Index value comprises: C/I and I
0/ N
0, wherein, C is the received power of user, I=I
0+ N
0, I
0for system interference, N
0for making an uproar at the bottom of system;
Described predetermined first kind dynamic indicator value is the polymerization grade L of channel, and described predetermined Equations of The Second Kind dynamic indicator value is the distribution proportion of L, or is the average of signal to noise ratio snr under often kind of L.
4. method as claimed in claim 3, is characterized in that, emulates the corresponding relation setting up dynamic indicator value and Static State Index value, specifically comprise by dynamically pre-:
According to C/I, I of dynamic pre-simulation data
0/ N
0, L, SNR, respectively with C/I, I
0/ N
0, L as different dimensions, to C/I, I
0/ N
0carry out interval section, and the average of SNR in the grid that formed of cutting into slices under statistics often kind of L value, obtain SNR and L, C/I, I
0/ N
0between the four dimensional relationship plane; Then
According to C/I, I of exporting during STATIC SIMULATION
0/ N
0, inquiry SNR and L, C/I, I
0/ N
0between the four dimensional relationship plane, obtain the SNR of user when Different L;
Based on the SNR of user when Different L, obtain the Block Error Rate of user when Different L;
Obtain total Block Error Rate of this user according to the Block Error Rate of user when Different L, based on total Block Error Rate of users all in simulating scenes, carry out channel performance assessment.
5. method as claimed in claim 4, is characterized in that, emulates the corresponding relation setting up dynamic indicator value and Static State Index value, comprise further by dynamically pre-:
According to C/I, I of dynamic pre-simulation data
0/ N
0, L, respectively with C/I, I
0/ N
0, L as different dimensions, to C/I, I
0/ N
0carry out interval section, add up the distribution proportion of often kind of L value in the grid that section is formed, obtain distribution proportion and L, C/I, I of L
0/ N
0between the four dimensional relationship plane; Then
C/I, I is exported according to during STATIC SIMULATION
0/ N
0, the distribution proportion of inquiry L and L, C/I, I
0/ N
0between the four dimensional relationship plane, obtain the distribution proportion of the Different L of user respectively;
The Block Error Rate of user when each L value is multiplied with the distribution proportion of this L value, and all multiplied result are sued for peace, obtain total Block Error Rate of user.
6. as claim 1,3 ~ 5 arbitrary as described in method, it is characterized in that, set up the corresponding relation of dynamic indicator value and Static State Index value by dynamic pre-emulation, comprise further:
Select inhomogeneous Static State Index value, carry out interval section as different dimensions;
In the grid that section is formed afterwards, predetermined 3rd class dynamic indicator value is added up, obtain the relation plane between inhomogeneity Static State Index value, predetermined 3rd class dynamic indicator value.
7. method as claimed in claim 6, is characterized in that, described predetermined 3rd class dynamic indicator value is the scheduling frequency β of user:
8. method as claimed in claim 7, is characterized in that, according to C/I, I of dynamic pre-simulation data
0/ N
0, scheduling times N, respectively with C/I, I
0/ N
0carry out interval section as different dimensions, the scheduling frequency β of user in the grid that statistics section is formed, obtain β and the C/I of user, I
0/ N
0between three-dimensional relationship plane; Then
C/I, I is exported according to during STATIC SIMULATION
0/ N
0, inquire about described three-dimensional relationship plane, obtain the β of user;
Total Block Error Rate of each user obtained is multiplied with the β of this user, the multiplied result of all users is sued for peace, the β sum of summed result and all users is divided by, according to division result assessment channel performance.
9. a channel performance apparatus for evaluating, for assessment of control channel performance, is characterized in that, comprising:
STATIC SIMULATION unit, for by STATIC SIMULATION, obtains the Static State Index value for assessment of channel performance;
Sound map unit, for according to the dynamic indicator value of channel set up by dynamic pre-emulation and the corresponding relation of Static State Index value, determines the dynamic indicator value that the Static State Index value that obtains is corresponding;
Performance Evaluation unit, for the dynamic indicator value based on the Static State Index value obtained and correspondence thereof, carries out channel performance assessment;
Wherein, sound map unit, emulates by dynamically pre-the corresponding relation setting up dynamic indicator value and Static State Index value, specifically comprises:
By dynamically pre-emulation, export inhomogeneous Static State Index value and dynamic indicator value;
Select inhomogeneity Static State Index value and predetermined first kind dynamic indicator value as different dimensions, and the dimension corresponding to Static State Index value carry out interval section;
In the grid that section is formed afterwards, for often kind of value of first kind dynamic indicator value, the predetermined Equations of The Second Kind dynamic indicator value relevant to first kind dynamic indicator value is added up, obtains inhomogeneity Static State Index value, relation plane between predetermined first kind dynamic indicator value and predetermined Equations of The Second Kind dynamic indicator value.
10. device as claimed in claim 9, it is characterized in that, described channel is physical downlink control channel PDCCH.
11. devices as claimed in claim 9, is characterized in that, described inhomogeneous Static State Index value comprises: C/I and I
0/ N
0, wherein, C is the received power of user, I=I
0+ N
0, I
0for system interference, N
0for making an uproar at the bottom of system;
Described predetermined first kind dynamic indicator value is the polymerization grade L of channel, and described predetermined Equations of The Second Kind dynamic indicator value is the distribution proportion of L, or is the average of signal to noise ratio snr under often kind of L.
12. devices as claimed in claim 11, is characterized in that, sound map unit, emulate the corresponding relation setting up dynamic indicator value and Static State Index value, specifically comprise by dynamically pre-:
According to C/I, I of dynamic pre-simulation data
0/ N
0, L, SNR, respectively with C/I, I
0/ N
0, L as different dimensions, to C/I, I
0/ N
0carry out interval section, and the average of SNR in the grid that formed of cutting into slices under statistics often kind of L value, obtain SNR and L, C/I, I
0/ N
0between the four dimensional relationship plane;
According to C/I, I of exporting during STATIC SIMULATION
0/ N
0, inquiry SNR and L, C/I, I
0/ N
0between the four dimensional relationship plane, obtain the SNR of user when Different L;
Performance Evaluation unit, based on the SNR of user when Different L, obtains the Block Error Rate of user when Different L; Obtain total Block Error Rate of this user according to the Block Error Rate of user when Different L, based on total Block Error Rate of users all in simulating scenes, carry out channel performance assessment.
13. devices as claimed in claim 12, is characterized in that, sound map unit, emulate the corresponding relation setting up dynamic indicator value and Static State Index value, comprise further by dynamically pre-:
According to C/I, I of dynamic pre-simulation data
0/ N
0, L, respectively with C/I, I
0/ N
0, L as different dimensions, to C/I, I
0/ N
0carry out interval section, add up the distribution proportion of often kind of L value in the grid that section is formed, obtain distribution proportion and L, C/I, I of L
0/ N
0between the four dimensional relationship plane; Then
C/I, I is exported according to during STATIC SIMULATION
0/ N
0, the distribution proportion of inquiry L and L, C/I, I
0/ N
0between the four dimensional relationship plane, obtain the distribution proportion of the Different L of user respectively;
Performance Evaluation unit, is multiplied the Block Error Rate of user when each L value with the distribution proportion of this L value, and sues for peace to all multiplied result, obtain total Block Error Rate of user.
14. as claim 9,11 ~ 13 arbitrary as described in device, it is characterized in that, sound map unit, set up the corresponding relation of dynamic indicator value and Static State Index value by dynamic pre-emulation, comprise further:
Select inhomogeneous Static State Index value, carry out interval section as different dimensions;
In the grid that section is formed afterwards, predetermined 3rd class dynamic indicator value is added up, obtain the relation plane between inhomogeneity Static State Index value, predetermined 3rd class dynamic indicator value.
15. devices as claimed in claim 14, is characterized in that, described predetermined 3rd class dynamic indicator value is the scheduling frequency β of user:
16. devices as claimed in claim 15, is characterized in that, sound map unit, concrete C/I, I according to dynamic pre-simulation data
0/ N
0, scheduling times N, respectively with C/I, I
0/ N
0carry out interval section as different dimensions, the scheduling frequency β of user in the grid that statistics section is formed, obtain β and the C/I of user, I
0/ N
0between three-dimensional relationship plane; C/I, I is exported according to during STATIC SIMULATION
0/ N
0, inquire about described three-dimensional relationship plane, obtain the β of user;
Performance Evaluation unit, is multiplied total Block Error Rate of each user obtained with the β of this user, and the multiplied result of all users is sued for peace, the β sum of summed result and all users is divided by, according to division result assessment channel performance.
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| PCT/CN2012/080568 WO2013026409A1 (en) | 2011-08-24 | 2012-08-24 | Channel performance evaluation method and device |
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| CN113139242B (en) * | 2021-05-14 | 2024-01-30 | 中国铁道科学研究院集团有限公司 | Online evaluation method and device for performance of pressure change valve of motor train unit |
| CN117856967A (en) * | 2022-09-30 | 2024-04-09 | 中兴通讯股份有限公司 | Target block error rate determining method and device |
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| CN1885988A (en) * | 2006-06-13 | 2006-12-27 | 北京邮电大学 | Dynamic simulation apparatus and method for network layer performance of the third generation mobile communication system |
| CN101651957A (en) * | 2008-07-18 | 2010-02-17 | 俊茂微电子（上海）有限公司 | Channel quality indication derivation method and device |
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| CN1885988A (en) * | 2006-06-13 | 2006-12-27 | 北京邮电大学 | Dynamic simulation apparatus and method for network layer performance of the third generation mobile communication system |
| CN101651957A (en) * | 2008-07-18 | 2010-02-17 | 俊茂微电子（上海）有限公司 | Channel quality indication derivation method and device |
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