CN114501529B - Downlink SINR correction method, device, electronic device and storage device - Google Patents

Abstract

The embodiment of the present invention provides a downlink SINR correction method, device, electronic device and storage device, including: obtaining a preset PCI planning signal model based on MR data; based on the preset PCI planning signal model, obtaining a reference signal RS-SINR expression and A full-band SINR expression; integrating and transforming the RS-SINR expression and the full-band SINR expression to obtain a modified quantization result of the full-band SINR to RS-SINR. The embodiment of the present invention quantifies the relationship between full-band SINR and RS-SINR through the PCI planning signal model established based on MR data to avoid modulo 3 interference, and compensates and corrects the original algorithm according to the quantization result. Greatly reduce the error with the actual measured value.

Description

Downlink SINR correction method, device, electronic device and storage device

technical field

The present invention relates to the technical field of wireless communication, in particular to a downlink SINR correction method, device, electronic equipment and storage equipment.

Background technique

In the optimization of LTE mobile networks, based on traditional network optimization methods, user perception information, such as network coverage and call quality, can only be obtained through drive tests and fixed-point tests. Some main roads and key places are tested, and the obtained sampling point data can only reflect the linear network performance of roads, so the analysis results are one-sided.

With the development of LTE technology and the application of big data technology in the communication field, network optimization is gradually developing towards platformization and automation. Data sources collected during network operation, such as MR (Measurement Report, measurement report) data and signaling data, have also replaced data sources collected by manual drive tests and become the main basis for network optimization analysis. Big data such as MR data are regularly reported to the base station by user terminals in the network under specific conditions to record various network indicators; MR sampling points are geographically distributed more evenly and cover 24 hours a day. Compared with drive test data, MR data can reflect the network situation more comprehensively and accurately, and the collection is automated and integrated, saving a lot of manpower and material resources.

In addition, in network optimization, the downlink interference level is an indicator that must be focused on. Downlink interference is measured by downlink SINR (Signal to Interference plus Noise Ratio, Signal to Interference plus Noise Ratio). However, in the 3GPP specification, it is not stipulated that the terminal UE (User Equipment, user equipment) must report the downlink SINR value, so the downlink SINR index is not included in the big data sources such as MR data, which also makes the MR data in the network optimization There are great limitations in application.

To solve this problem, the existing technology proposes an algorithm for calculating downlink SINR based on MR data. All the parameters required by the algorithm come from other index values reported by MR data, so the approximate downlink SINR value can be calculated without any external data, but the difference between the downlink SINR calculated by the existing technology and the actually measured downlink SINR There are still large errors.

Contents of the invention

Embodiments of the present invention provide a downlink SINR correction method, device, electronic equipment, and storage equipment to solve the defect in the prior art that there is a large error between the downlink SINR calculation using MR data and the actual measurement value.

In the first aspect, the embodiment of the present invention provides a downlink SINR correction method, including:

Obtain the preset PCI planning signal model based on MR data;

Obtain a reference signal RS-SINR expression and a full-band SINR expression based on the preset PCI planning signal model;

The RS-SINR expression and the full-band SINR expression are integrated and converted to obtain a modified quantization result of the full-band SINR to the RS-SINR.

Further, said obtaining a preset PCI planning signal model specifically includes:

Acquiring a primary cell, a first neighboring cell, and a second neighboring cell, wherein there is no modulo 3 interference between the first neighboring cell and the second neighboring cell and the primary cell;

Set preset network utilization, preset signal propagation loss, and preset signal transmission power of a single RE position, and multiple first RE positions in each cell are used to carry reference signal RS, and the remaining multiple second RE positions and multiple A third RE position is used to carry services;

Based on the preset network utilization, the preset signal propagation loss, and the preset signal transmission power of the single RE location, the SINR at the first RE location, the SINR at the second RE location, and the SINR at the third RE location are obtained.

Further, the setting of preset network utilization, preset signal propagation loss and preset signal transmission power of a single RE location further includes:

Acquire a first preset network utilization rate corresponding to the first neighboring cell, and a second preset network utilization rate corresponding to the second neighboring cell;

Obtain the preset signal propagation loss of the primary cell corresponding to the primary cell, the first preset signal propagation loss corresponding to the first neighboring cell, and the second preset signal propagation loss corresponding to the second neighboring cell.

Further, the first RE position SINR, the second RE position SINR and the third RE position are obtained based on the preset network utilization rate, the preset signal propagation loss and the preset signal transmission power of the single RE position SINR, specifically:

Preset signal transmission power based on the single RE location, the first preset network utilization rate, the second preset network utilization rate, the primary cell preset signal propagation loss, the first preset signal propagation loss and the second preset signal propagation loss to obtain the SINR at the first RE position;

Preset signal transmission power based on the single RE location, the second preset network utilization, the preset signal propagation loss of the primary cell, the first preset signal propagation loss, and the second preset signal propagation Loss, obtain the SINR of the second RE position;

Preset signal transmission power based on the single RE location, the first preset network utilization, the preset signal propagation loss of the primary cell, the first preset signal propagation loss, and the second preset signal propagation loss, to obtain the SINR of the third RE position.

Further, the first RE position SINR, the second RE position SINR and the third RE position are obtained based on the preset network utilization rate, the preset signal propagation loss and the preset signal transmission power of the single RE position SINR, which further includes:

Respectively setting the first preset signal propagation loss and the second preset signal propagation loss to be equal, and the first preset network utilization rate and the second preset network utilization rate are equal to the preset main network utilization rate , to obtain the simplified SINR of the first RE position, the SINR of the second RE position and the SINR of the third RE position.

Further, the obtaining the reference signal RS-SINR expression and the full-band SINR expression based on the preset PCI planning signal model specifically includes:

Based on the simplified first RE location SINR, second RE location SINR, and third RE location SINR, the reference signal RS-SINR expression and the full-band SINR expression are respectively obtained.

Further, the integrated conversion of the RS-SINR expression and the full-band SINR expression is carried out to obtain a modified quantification result of the full-band SINR to RS-SINR, which specifically includes:

Dividing the reference signal RS-SINR expression by the full-band SINR expression to obtain a conversion relational expression of RS-SINR relative to the full-band SINR;

The conversion relational expression is converted into the frequency domain and fitted according to the massive data of the preset live network to obtain the corrected quantification result.

In the second aspect, the embodiment of the present invention further provides a downlink SINR correction device, including:

An acquisition module, configured to acquire a preset PCI planning signal model based on MR data;

A first conversion module, configured to obtain a reference signal RS-SINR expression and a full-band SINR expression based on the preset PCI planning signal model;

The second conversion module is configured to integrate and convert the RS-SINR expression and the full-band SINR expression to obtain a modified quantization result of the full-band SINR to RS-SINR.

In the third aspect, the embodiment of the present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and operable on the processor. When the processor executes the program, any of the above-mentioned Steps of the downlink SINR correction method.

In a fourth aspect, an embodiment of the present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the downlink SINR correction method described in any one of the above are implemented. .

The downlink SINR correction method, device, electronic device, and storage device provided by the embodiments of the present invention quantify the full-band SINR and RS-SINR through the PCI planning signal model established based on MR data to avoid modulo 3 interference According to the quantitative results, the original algorithm is compensated and corrected, which greatly reduces the error with the actual measured value.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic diagram of RE utilization of an antenna port provided by the prior art;

FIG. 2 is a schematic flowchart of a downlink SINR correction method provided by an embodiment of the present invention;

FIG. 3 is a PCI planning signal model diagram for avoiding modulo 3 interference provided by an embodiment of the present invention;

Fig. 4 is a probability distribution comparison diagram provided by an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a downlink SINR correction device provided by an embodiment of the present invention;

Fig. 6 is a schematic structural diagram of an electronic device provided by an embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

The existing downlink RS-SINR (Reference Signal-Signal to Interference plus Noise Ratio, the signal-to-interference plus noise ratio of the reference signal) is within the considered measurement frequency bandwidth, all REs (Resource Elements, The average value of the SINR over the resource element). The SINR on the RE carrying the Reference Signal is equal to the ratio of the useful signal power on the RE to all the interference signal power and noise power on the RE. The useful signal power on the RE carrying the Reference Signal is RSRP (ReferenceSignal Receiving Power, reference signal received power). The RSRP is regularly reported in the MR and can be directly extracted from the MRO data. However, the interference signal power and noise power on the RE carrying the Reference Signal cannot be directly obtained. However, it is noted that RSSI (Received Signal Strength Indication, received signal strength indication) is all OFDM (Orthogonal Frequency Division Multiplexing (Orthogonal Frequency Division Multiplexing) symbol power average value, as shown in Figure 1, the signals carried by these symbols include all signals such as pilot signals, data signals, adjacent cell interference signals, and noise signals. Taking the 20M bandwidth used by most existing LTE networks as an example, within the entire bandwidth, one OFDM symbol contains 100 RBs, that is, 1200 REs. In the case of two antenna ports, in order to suppress interference, for the RE position where the reference signal of another antenna port is located, the RE corresponding to this antenna port is set to zero, that is, it is not used to transmit resources. As shown in Figure 1, in one RB One OFDM symbol of , contains 12 REs, as shown in the circled part in the figure, two of which carry reference signals, and the power is RSRP; there are two REs that do not transmit resources, and the power is zero; the remaining 8 RE is used to carry services, and its power is lower than RSRP, which is generally considered to be 3dB lower than RSRP in engineering.

According to the above principles, the prior art proposes a downlink SINR algorithm, the specific process is as follows: the RSSI power is divided into the following parts: 1) the sum of the RSRPs on 200 REs; 2) the REs used to transmit services at this moment The sum of the power on the above, the total number of REs for transmission services is equal to PRBNum×8, PRBNum is the number of RB (Resource Block, resource block) scheduled by PSDCH (Physical Shared Downlink Channel, Physical Shared Downlink Channel) of this time slot, indicating that this time slot is used The number of RBs used to transmit services ranges from 0 to 100, and PRBNum can be directly extracted from MRO data; 3) The sum of interference and noise power on 1200 REs. Therefore, the sum of interference and noise power on 1200 REs can be obtained by subtracting the power of the first two parts in RSSI, and then the average value of interference and noise power on one RE can be obtained. The calculation method of downlink RS-SINR is as follows:

RSRP is the reference signal receiving level of the serving cell; RSSI is the average power of all OFDM symbols including reference symbols within the measurement frequency bandwidth; PRBNum is the number of PRBs occupied by each time slot of PDSCH. MR data is directly reported to RSRP and PRBNum, but not to RSSI. However, the RSRQ of the serving cell can be directly extracted from the MR data, so the RSSI here can be calculated through the RSRP and RSRQ of the serving cell, and the calculation formula is as follows:

RSRQ=(N×RSRP)/RSSI, N is the number of RBs in the measurement bandwidth. Here, 12 consecutive subcarriers in the frequency and a slot in the time domain are called 1 RB. When the bandwidth of the current network is 20M, the number of N The value is 100.

From the algorithm derivation process of the prior art above, it can be seen that the downlink SINR calculated by the original algorithm is actually the SINR value of the whole frequency band, and the reference signal SINR required in the optimization, the downlink RS-SINR is all the REs carrying the reference signal The average value of the SINR on . In order to avoid modulo 3 interference in the existing network, reasonable planning is carried out on PCI. This makes the RE where the reference signal is located, where a subcarrier on the frequency and a symbol on the time domain is called an RE, and the probability of being interfered by neighboring cells is lower than that of other REs, so correspondingly, the downlink SINR value of the RE where the reference signal is located To be higher than other RE. It can be concluded that the RS-SINR value is greater than the full-band SINR value, so the algorithm of the prior art directly replaces the RS-SINR with the full-band SINR, resulting in a huge error.

In view of the above problems, the embodiment of the present invention proposes a correction algorithm for calculating downlink SINR based on MR data, establishes a PCI planning signal model to avoid modulo 3 interference, and quantifies the relationship between full-band SINR and RS-SINR through this model , according to the quantitative results, the algorithm of the original technology is compensated and corrected, which greatly improves the accuracy of the algorithm.

Fig. 2 is a schematic flowchart of a downlink SINR correction method provided by an embodiment of the present invention, as shown in Fig. 2 , including:

101. Acquire a preset PCI planning signal model based on MR data;

First, based on the MR data on the network, a preset PCI planning signal model to avoid modulo 3 interference is established. Here, the meaning of modulo 3 interference is the remainder of adding and dividing the respective PCIs of several neighboring cells by 3. If they are the same, then Modulo three interference, that is, there is the same frequency as the service cell in the neighbor cell list; PCI refers to the physical cell ID, which is equivalent to the concept of scrambling code in TD, and is used to distinguish cells, because the current LTE network is the same frequency Networking, so different PCIs must be used to distinguish the cells, among which there are 504 PCIs, numbered from 0 to 503; the model proposed in the embodiment of the present invention avoids the above-mentioned modulo 3 interference by setting.

102. Obtain a reference signal RS-SINR expression and a full-band SINR expression based on the preset PCI planning signal model;

Based on the preset PCI planning signal model established above, RS-SINR expressions and full-band SINR expressions are respectively established, and simplified under certain preset conditions.

103. Perform integrated transformation on the RS-SINR expression and the full-band SINR expression to obtain a modified quantization result of the full-band SINR on the RS-SINR.

Then, the obtained RS-SINR expression and the full-band SINR expression are integrated and transformed, and the data fitting is used to obtain the final corrected quantification result.

The embodiment of the present invention establishes a PCI planning signal model based on MR data to avoid modulo 3 interference, quantifies the relationship between full-band SINR and RS-SINR through this model, and compensates and corrects the original algorithm according to the quantification result, greatly improving Reduce the error from the actual measured value.

Based on the foregoing embodiments, step 101 in the method specifically includes:

Acquiring a primary cell, a first neighboring cell, and a second neighboring cell, wherein there is no modulo 3 interference between the first neighboring cell and the second neighboring cell and the primary cell;

Set preset network utilization, preset signal propagation loss, and preset signal transmission power of a single RE position, and multiple first RE positions in each cell are used to carry reference signal RS, and the remaining multiple second RE positions and multiple A third RE position is used to carry services;

Based on the preset network utilization, the preset signal propagation loss, and the preset signal transmission power of the single RE location, the SINR at the first RE location, the SINR at the second RE location, and the SINR at the third RE location are obtained.

Wherein, the setting of preset network utilization, preset signal propagation loss and preset signal transmission power of a single RE location further includes:

Acquire a first preset network utilization rate corresponding to the first neighboring cell, and a second preset network utilization rate corresponding to the second neighboring cell;

Obtain the preset signal propagation loss of the primary cell corresponding to the primary cell, the first preset signal propagation loss corresponding to the first neighboring cell, and the second preset signal propagation loss corresponding to the second neighboring cell.

Wherein, the first RE position SINR, the second RE position SINR and the third RE position SINR are obtained based on the preset network utilization rate, the preset signal propagation loss and the preset signal transmission power of the single RE position , including:

Preset signal transmission power based on the single RE location, the first preset network utilization rate, the second preset network utilization rate, the primary cell preset signal propagation loss, the first preset signal propagation loss and the second preset signal propagation loss to obtain the SINR at the first RE position;

Preset signal transmission power based on the single RE location, the second preset network utilization, the preset signal propagation loss of the primary cell, the first preset signal propagation loss, and the second preset signal propagation Loss, obtain the SINR of the second RE position;

Preset signal transmission power based on the single RE location, the first preset network utilization, the preset signal propagation loss of the primary cell, the first preset signal propagation loss, and the second preset signal propagation loss, to obtain the SINR of the third RE position.

Wherein, the first RE position SINR, the second RE position SINR and the third RE position SINR are obtained based on the preset network utilization rate, the preset signal propagation loss and the preset signal transmission power of the single RE position , further including:

Respectively setting the first preset signal propagation loss and the second preset signal propagation loss to be equal, and the first preset network utilization rate and the second preset network utilization rate are equal to the preset main network utilization rate , to obtain the simplified SINR of the first RE position, the SINR of the second RE position and the SINR of the third RE position.

Specifically, due to the existence of modulo 3 interference in the existing network, in order to avoid modulo 3 interference, PCI planning for neighboring cells is required, so that the REs where the reference signals of the main strong neighbor cells are located and the REs where the reference signals of the main cell are located are staggered in time-frequency position , to avoid mutual interference, which results in that the strength of the RE where the reference signal RS is located is lower than that of other REs from the interference signal from neighboring cells. Correspondingly, the downlink SINR value of the RE where the reference signal RS is located is higher than that of other REs. It can be concluded that the RS-SINR value is greater than the full-band SINR value. The original algorithm calculates the full-band SINR. In order to reduce the error and explain the impact of PCI planning based on avoiding modulo 3 interference on the interference probability of REs in different locations, the following idealized model is proposed: Assuming that the network structure is reasonable, except for the strongest Out of the two neighboring cells, the signal strength of the third and subsequent neighboring cells is sufficiently small, so the model can be simplified to one main cell and two neighboring cells. 3 do not conflict, the RS signal arrangement is shown in Figure 3.

Further, assuming that the preset network utilization rate is K, the preset signal propagation loss is L, and the signal transmission power of position 0/1/2, that is, the preset signal transmission power of a single RE position is P, then the first RE position SINR , the SINR of the second RE position and the SINR of the third RE position, that is, the downlink interference of positions 0/1/2 in Figure 3 are respectively:

SINR0＝L0×P/(K1×L1×P+K2×L2×P)＝L0/(K1×L1+K2×L2)

SINR1＝L0×P/(L1×P+L2×K2×P)＝L0/(L1+L2×K2)

SINR2＝L0×P/(L2×P+L1×K1×P)＝L0/(L2+L1×K1)

Assume that the signal propagation loss probability distribution of the first neighboring cell and the second neighboring cell is the same, that is, the first preset signal propagation loss L1 is equal to the second preset signal propagation loss L2, L1=L2; and the existing network utilization is similar, K0= K1=K2, that is, the first preset network utilization rate K1 and the second preset network utilization rate K2 are both equal to the preset main network utilization rate K0, then:

SINR0＝L0/(K1×L1+K2×L2)＝L0/2×K×L1

SINR1＝L0/(L1+L2×K2)＝L0/((1+K)×L1)

SINR2＝L0/(L2+L1×K1)＝L0/((1+K)×L1)

Based on any of the above-mentioned embodiments, step 102 in the method specifically includes:

Based on the simplified first RE position SINR, second RE position SINR and third RE position SINR, the reference signal RS-SINR expression and the full frequency

with SINR expression.

Specifically, based on the model of the above-mentioned embodiment, the expressions of RS-SINR and full-band SINR can be respectively obtained as follows:

RS·SINR＝L0/(K1×L1+K2×L2)

All·SINR＝1200×L0/(400×(K1×L1+K2×L2)+400×(L1+K2×L2)+400×(K1×L1+L2))

Based on any of the above-mentioned embodiments, step 103 in the method specifically includes:

Dividing the reference signal RS-SINR expression by the full-band SINR expression to obtain a conversion relational expression of RS-SINR relative to the full-band SINR;

The conversion relational expression is converted into the frequency domain and fitted according to the massive data of the preset live network to obtain the corrected quantification result.

Specifically, in the embodiment of the present invention, it is still assumed that the probability distribution of propagation loss of signals in two adjacent cells is the same, L1=L2; and the utilization ratio of the existing network is similar, K0=K1=K2. but:

get:

Convert to the frequency domain:

RS·SINR＝2×All·SINR+1.25+X

X is related to L0, L1 and K. According to the massive data fitting of the live network, the value of X is 8.75, namely:

RS·SINR＝2×All·SINR+10

In addition, in order to verify the accuracy of the correction algorithm of the embodiment of the present invention, a verification test is carried out on an existing network in a certain place, and a test terminal is used to collect drive test data in the verification area to obtain a set of sampling points for drive test downlink SINR. The MR sampling point corresponding to the drive test terminal is obtained by matching the signaling data of the S1-MME interface, and the MR sampling point set of the downlink SINR is obtained through the correction algorithm of the present invention for calculating the downlink SINR based on the MR data. As shown in Table 1, comparing the two data sources, it can be seen that the average downlink SINR of drive test data is 15.9dB, and the average downlink SINR calculated by MR data is 14.6dB, with an error of only about 1dB, and the probability distribution of downlink SINR is basically the same. The comparison results are shown in Figure 4.

Table 1

road test MR downlink SINR 15.9dB 14.6dB

A correction algorithm for calculating downlink SINR based on MR data proposed by the embodiment of the present invention establishes a PCI planning signal model for avoiding modulo 3 interference, and quantifies the relationship between full-band SINR and RS-SINR through this model. Results The original algorithm was compensated and corrected, which greatly reduced the error between the actual measured value. Through live network verification, the average error of downlink SINR is only about 1dB, and the probability distribution is basically the same.

The downlink SINR correction device provided by the embodiment of the present invention is described below, and the downlink SINR correction device described below and the downlink SINR correction method described above may be referred to in correspondence.

FIG. 5 is a schematic structural diagram of a downlink SINR correction device provided by an embodiment of the present invention. As shown in FIG. 5 , it includes: an acquisition module 51, a first conversion module 52, and a second conversion module 53; wherein:

The acquisition module 51 is used to obtain a preset PCI planning signal model based on the MR data; the first conversion module 52 is used to obtain a reference signal RS-SINR expression and a full-band SINR expression based on the preset PCI planning signal model; the second The conversion module 53 is used to integrate and convert the RS-SINR expression and the full-band SINR expression to obtain a modified quantization result of the full-band SINR to RS-SINR.

The embodiment of the present invention quantifies the relationship between full-band SINR and RS-SINR through the PCI planning signal model established based on MR data to avoid modulo 3 interference, and compensates and corrects the original algorithm according to the quantization result. Greatly reduce the error with the actual measured value.

FIG. 6 illustrates a schematic diagram of the physical structure of an electronic device. As shown in FIG. 6, the electronic device may include: a processor (processor) 610, a communication interface (Communications Interface) 620, a memory (memory) 630 and a communication bus 640, Wherein, the processor 610 , the communication interface 620 , and the memory 630 communicate with each other through the communication bus 640 . The processor 610 can call the logic instructions in the memory 630 to execute the downlink SINR correction method, the method includes: obtaining a preset PCI planning signal model based on MR data; and obtaining a reference signal RS-SINR based on the preset PCI planning signal model an expression and a full-band SINR expression; the RS-SINR expression and the full-band SINR expression are integrated and converted to obtain a modified quantization result of the full-band SINR to RS-SINR.

In addition, the logic instructions in the above-mentioned memory 630 may be implemented in the form of software functional units and when sold or used as an independent product, may be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes. .

On the other hand, an embodiment of the present invention also provides a computer program product, the computer program product includes a computer program stored on a non-transitory computer-readable storage medium, the computer program includes program instructions, and when the program instructions When executed by a computer, the computer can execute the downlink SINR correction method provided by the above method embodiments, the method includes: obtaining a preset PCI planning signal model based on MR data; based on the preset PCI planning signal model, obtaining a reference signal RS - SINR expression and full-band SINR expression; integrating and transforming the RS-SINR expression and the full-band SINR expression to obtain a modified quantization result of full-band SINR to RS-SINR.

In yet another aspect, an embodiment of the present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored, and the computer program is implemented when executed by a processor to perform the downlink SINR correction method provided by the above-mentioned embodiments, The method includes: obtaining a preset PCI planning signal model based on MR data; obtaining a reference signal RS-SINR expression and a full-band SINR expression based on the preset PCI planning signal model; The full-band SINR expression is integrated and converted to obtain the modified quantization result of the full-band SINR to RS-SINR.

The device embodiments described above are only illustrative, and the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in One place, or it can be distributed to multiple network elements. Part or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. It can be understood and implemented by those skilled in the art without any creative efforts.

Through the above description of the implementations, those skilled in the art can clearly understand that each implementation can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware. Based on this understanding, the essence of the above technical solution or the part that contributes to the prior art can be embodied in the form of software products, and the computer software products can be stored in computer-readable storage media, such as ROM/RAM, magnetic discs, optical discs, etc., including several instructions to make a computer device (which may be a personal computer, server, or network device, etc.) execute the methods described in various embodiments or some parts of the embodiments.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (8)

1. The downlink SINR correction method is characterized by comprising the following steps:

acquiring a preset PCI planning signal model based on MR data;

based on the preset PCI planning signal model, a reference signal RS-SINR expression and a full-band SINR expression are obtained;

performing integration and conversion on the RS-SINR expression and the full-band SINR expression to obtain a corrected quantization result of the full-band SINR on the RS-SINR;

the obtaining the preset PCI planning signal model specifically comprises the following steps:

acquiring a main cell, a first adjacent cell and a second adjacent cell, wherein the first adjacent cell, the second adjacent cell and the main cell do not have module 3 interference;

setting a preset network utilization rate, preset signal propagation loss and single RE position preset signal transmitting power, wherein a plurality of first RE positions of each cell are used for bearing Reference Signals (RS), a plurality of other second RE positions and a plurality of third RE positions are used for bearing services;

based on the preset network utilization, the preset signal propagation loss and the single RE position preset signal transmitting power, a first RE position SINR, a second RE position SINR and a third RE position SINR are obtained;

the obtaining a reference signal RS-SINR expression and a full band SINR expression based on the preset PCI planning signal model specifically includes:

based on the simplified first RE position SINR, second RE position SINR and third RE position SINR, the reference signal RS-SINR expression and the full band SINR expression are obtained, respectively.

2. The downstream SINR modification method of claim 1, wherein the setting of the preset network utilization, the preset signal propagation loss, and the single RE position preset signal transmit power further comprises:

acquiring a first preset network utilization rate corresponding to the first neighbor cell and a second preset network utilization rate corresponding to the second neighbor cell;

acquiring a preset signal propagation loss of a main cell corresponding to the main cell, a first preset signal propagation loss corresponding to the first neighbor cell and a second preset signal propagation loss corresponding to the second neighbor cell.

3. The method for correcting downlink SINR according to claim 2, wherein the obtaining the first RE position SINR, the second RE position SINR, and the third RE position SINR based on the preset network utilization, the preset signal propagation loss, and the single RE position preset signal transmission power specifically includes:

obtaining the SINR of the first RE position based on the preset signal transmitting power of the single RE position, the first preset network utilization, the second preset network utilization, the preset signal propagation loss of the main cell, the first preset signal propagation loss and the second preset signal propagation loss;

obtaining the SINR of the second RE position based on the preset signal transmitting power of the single RE position, the second preset network utilization, the preset signal propagation loss of the main cell, the first preset signal propagation loss and the second preset signal propagation loss;

and obtaining the SINR of the third RE position based on the preset signal transmitting power of the single RE position, the first preset network utilization rate, the preset signal propagation loss of the main cell, the first preset signal propagation loss and the second preset signal propagation loss.

4. The method for downlink SINR correction of claim 3, wherein the obtaining the first RE position SINR, the second RE position SINR, and the third RE position SINR based on the preset network utilization, the preset signal propagation loss, and the single RE position preset signal transmission power further includes:

and respectively setting the first preset signal propagation loss and the second preset signal propagation loss to be equal, and setting the first preset network utilization rate and the second preset network utilization rate to be equal to the preset main network utilization rate to obtain simplified first RE position SINR, second RE position SINR and third RE position SINR.

5. The method for correcting the downlink SINR of claim 1, wherein the integrating and converting the RS-SINR expression and the full-band SINR expression obtain a corrected quantization result of the full-band SINR on the RS-SINR, specifically includes:

dividing the reference signal RS-SINR expression by the full-band SINR expression to obtain a conversion relation of the RS-SINR relative to the full-band SINR;

and converting the conversion relation into a frequency domain, and fitting according to preset current network volume data to obtain the corrected quantization result.

6. The downlink SINR correction device is characterized by comprising:

the acquisition module is used for acquiring a preset PCI planning signal model based on MR data;

the first conversion module is used for obtaining a reference signal RS-SINR expression and a full-band SINR expression based on the preset PCI planning signal model;

the second conversion module is used for carrying out integrated conversion on the RS-SINR expression and the full-band SINR expression to obtain a corrected quantization result of the full-band SINR on the RS-SINR;

the acquisition module is further configured to acquire a primary cell, a first neighboring cell, and a second neighboring cell, where the first neighboring cell, the second neighboring cell, and the primary cell do not have a mode 3 interference; setting a preset network utilization rate, preset signal propagation loss and single RE position preset signal transmitting power, wherein a plurality of first RE positions of each cell are used for bearing Reference Signals (RS), a plurality of other second RE positions and a plurality of third RE positions are used for bearing services; based on the preset network utilization, the preset signal propagation loss and the single RE position preset signal transmitting power, a first RE position SINR, a second RE position SINR and a third RE position SINR are obtained;

the first conversion module is further configured to obtain the reference signal RS-SINR expression and the full band SINR expression based on the simplified first RE position SINR, the second RE position SINR, and the third RE position SINR, respectively.

7. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of the downstream SINR correction method of any of claims 1-5 when the program is executed by the processor.

8. A non-transitory computer readable storage medium having stored thereon a computer program, which when executed by a processor, implements the steps of the downstream SINR correction method of any of claims 1 to 5.