CN106211185B

CN106211185B - Method and device for determining space isolation zone

Info

Publication number: CN106211185B
Application number: CN201510218762.3A
Authority: CN
Inventors: 邵华; 何文林; 李新; 吴晶; 林兴
Original assignee: China Mobile Communications Group Co Ltd
Current assignee: China Mobile Communications Group Co Ltd
Priority date: 2015-04-30
Filing date: 2015-04-30
Publication date: 2019-12-06
Anticipated expiration: 2035-04-30
Also published as: CN106211185A

Abstract

the invention discloses a method for determining a space isolation zone, which comprises the following steps: acquiring a Measurement Report (MR) data number of a first communication system in a first area; the use efficiency of the spectrum resources of the first communication system is lower than that of the spectrum resources of the second communication system; determining a guard band cell from the cells of the first region according to the MR data. The invention also discloses a device for determining the space isolation zone.

Description

method and device for determining space isolation zone

Technical Field

the present invention relates to the field of wireless communications, and in particular, to a method and an apparatus for determining a spatial isolation zone.

background

With the development of wireless technology, more and more operators replans the frequency originally occupied by the standard with lower spectrum efficiency, and apply the frequency to the standard with higher spectrum efficiency. In this process, because the original system is still in use, only part of the frequencies can be vacated for the new system, and there are objective reasons such as different original system loads or frequency use conditions in each region of frequency vacation, and the conditions of available bandwidth or central frequency points may be inconsistent among the regions (regions 1 and 2 shown in fig. 1). In this scenario, the new system and the original system in two regions of the same frequency band may occupy (as shown by the shaded area in fig. 1). To avoid intersystem co-channel interference, a spatial guard band needs to be provided between the two areas to provide sufficient isolation. The frequency use condition in the guard band is shown in fig. 1: for the frequency band occupied by the same system in two areas at the same time, the method can be used for deploying the system in the guard band; for the frequency bands (shaded parts) occupied by different systems in the two areas, the frequency band needs to be cleared and then is not used, so that the co-channel interference between the two areas is reduced.

in the prior art, the setting of the spatial isolation zone mainly depends on simulation or engineering experience, a clear and feasible setting principle is not available temporarily, and the effectiveness of the existing setting method is further reduced in the situation that an electronic map is lacked or the terrain is complex.

disclosure of Invention

in order to solve the existing technical problem, embodiments of the present invention provide a method and an apparatus for determining a spatial isolation zone.

In order to achieve the above purpose, the technical solution of the embodiment of the present invention is realized as follows:

the embodiment of the invention provides a method for determining a space isolation zone, which comprises the following steps:

Acquiring Measurement Report (MR) data of a first communication system in a first area; the use efficiency of the spectrum resources of the first communication system is lower than that of the spectrum resources of the second communication system;

Determining a guard band cell from the cells of the first region according to the MR data.

in the foregoing solution, determining a guard band cell from each cell of the first region according to the MR data includes:

Obtaining the receiving level value of each cell of the first communication system in the first area according to the MR data;

and determining a guard band cell from each cell of the first area according to the receiving level value and the set first level threshold value and/or second level threshold value.

In the foregoing solution, before obtaining the reception level values of the cells of the first communication system in the first area according to the MR data, the method further includes:

determining the first level threshold value according to the maximum tolerable base noise rise of the second terminal of the second communication system or the MR data;

And determining the second level threshold value according to the maximum tolerable base noise rise amount of the first terminal of the first communication system or the MR data.

In the foregoing solution, the determining the first level threshold according to the maximum tolerable base noise rise amount of the second terminal of the second communication system includes:

determining the thermal noise power in the receiving bandwidth according to the receiving bandwidth and the thermal noise power of the second terminal; determining the receivable maximum interference level according to the tolerable maximum base noise rise of the second terminal;

and obtaining the first level threshold value by subtracting the maximum interference level from the thermal noise power in the determined receiving bandwidth.

in the foregoing solution, the determining the second level threshold according to the maximum tolerable base noise rise amount of the first terminal of the first communication system or the MR data includes:

Determining thermal noise power in a receiving bandwidth according to the receiving bandwidth and the thermal noise power of the first terminal; determining the maximum receivable interference level according to the maximum tolerable base noise rise of the first terminal;

and obtaining the second level threshold value by subtracting the maximum interference level from the thermal noise power in the determined receiving bandwidth.

in the foregoing solution, the determining a guard band cell from each cell of the first area according to the reception level value and a set first level threshold value includes:

Filtering out a serving cell from the MR data collected in the first region as a cell in the first region, wherein an interference cell is a sample point of a cell in a second region;

For each interfering cell, when the absolute number of sample points of which the receiving level values in the corresponding MR data are higher than the first level threshold exceeds a first threshold and/or the corresponding first ratio exceeds a second threshold, determining that the interfering cell is a guard band cell;

Wherein the first proportion is: for each interference cell, the ratio of the receiving level value in all the corresponding MR data which is greater than the first level threshold value to the absolute number of all the corresponding MR sample points is calculated; the first region comprises a second region and a third region; the second region is adjacent to the third region.

In the foregoing solution, the determining a guard band cell from each cell of the first area according to the reception level value and a set second level threshold value includes:

filtering out a serving cell from the MR data collected in the first region as a cell in a second region, wherein an interference cell is a sample point of a cell in the first region;

for each serving cell, when the absolute number of sample points of which the receiving level values in the corresponding MR data are higher than the second level threshold exceeds a third threshold and/or the second proportion thereof exceeds a fourth threshold, determining that the corresponding cell is a guard band cell;

wherein the second ratio is: for each serving cell, the ratio of the receiving level value in all the corresponding MR data which is greater than the second level threshold value to the absolute number of all the corresponding MR sample points is calculated; the first region comprises a second region and a third region; the second region is adjacent to the third region.

In the foregoing solution, the determining a guard band cell from each cell in the first area according to the reception level value and the set first level threshold value and second level threshold value includes:

filtering out a serving cell from the MR data collected in the first region as a cell in the first region, wherein an interference cell is a sample point of a cell in a second region; for each interfering cell, when the absolute number of sample points of which the receiving level values in the corresponding MR data are higher than the first level threshold exceeds a first threshold and/or the corresponding first ratio exceeds a second threshold, determining that the interfering cell is a guard band cell; wherein, the first proportion refers to: for each interference cell, the ratio of the receiving level value in all the corresponding MR data which is greater than the first level threshold value to the absolute number of all the corresponding MR sample points is calculated; and

Filtering out a serving cell from the MR data collected in the first region as a cell in a second region, wherein an interference cell is a sample point of a cell in the first region; for each serving cell, when the absolute number of sample points of which the receiving level values in the corresponding MR data are higher than the second level threshold exceeds a third threshold and/or the second proportion thereof exceeds a fourth threshold, determining that the corresponding cell is a guard band cell;

Wherein the second ratio is: for each serving cell, the ratio of the receiving level value in all the corresponding MR data which is greater than the second level threshold value to the absolute number of all the corresponding MR sample points is calculated; the first area comprises a second area and a third area; the second region is adjacent to the third region.

in the foregoing solution, when acquiring MR data of a first communication system in a first region, the method further includes:

acquiring engineering parameters of the first communication system in the first area;

correspondingly, according to the MR data and the engineering parameters, determining a path loss value from the second area cell to the first terminal of the first communication system under the third area cell and from the third area cell to the first terminal under the second area cell;

determining a guard band cell from each cell of the first area by using the path loss value and the set first spatial isolation value and/or second spatial isolation value; wherein the content of the first and second substances,

the first spatial isolation value is a spatial isolation value required between a second terminal of the second communication system and a first base station of the first communication system; the second spatial isolation value is a spatial isolation value required between a second base station of the second communication system and the first terminal; the first region comprises a second region and a third region; the second region is adjacent to the third region.

In the foregoing solution, the determining, according to the MR data and the engineering parameter, the path loss value of the first terminal of the first communication system from the second area cell to the third area cell and the path loss value of the first terminal from the third area cell to the second area cell are:

And determining the path loss values from the first terminal under the second area cell to the third area cell and from the third area cell to the first terminal under the second area cell by using the interference cell level received by the terminal in the MR data and the corresponding interference cell transmitting power in the engineering parameters.

in the above scheme, the determining, by using the interference cell level received by the terminal in the MR data and the corresponding interference cell transmission power in the engineering parameter, the path loss values from the first terminal in the second area cell to the third area cell and from the third area cell to the first terminal in the second area cell includes:

and obtaining a path loss value of the first terminal from the second area cell to the third area cell and the path loss value of the first terminal from the third area cell to the second area cell by subtracting the interference cell level received by the terminal from the interference cell transmitting power.

in the foregoing solution, before determining a guard band cell from each cell in the first area by using the path loss value and the set first spatial isolation value, the method further includes:

And determining the first spatial isolation value according to the maximum tolerable noise rise of the second terminal and the first base station or the MR data.

In the foregoing solution, the determining the first spatial isolation value according to the maximum tolerable base noise rise of the first terminal and the first base station is:

determining a first isolation value of the isolation required in the first direction and a second isolation value of the isolation required in the second direction according to parameter indexes used for representing the degradation degree of the receivable sensitivity of the second terminal and the first base station receiver and by combining the power of transmitters in all directions; the first direction is an interference direction of the first base station to the second terminal; the second direction is an interference direction of the second terminal to the first base station;

Determining a greater of the first isolation value and the second isolation value as the first spatial isolation value.

In the foregoing solution, before determining a guard band cell from each cell in the first area by using the path loss value and the set second spatial isolation value, the method further includes:

and determining the second spatial isolation value according to the maximum tolerable base noise rise of the second base station and the first terminal or the MR data.

in the foregoing solution, the determining the second spatial isolation value according to the maximum tolerable base noise rise of the second base station and the first terminal is as follows:

Determining a third isolation value of the isolation required in the third direction and a fourth isolation value of the isolation required in the fourth direction according to parameter indexes used for representing the receivable sensitivity deterioration degree of the first terminal and the second base station receiver and by combining the power of transmitters in all directions; the third direction is an interference direction of the first terminal to the second base station; the fourth direction is a direction in which the second base station interferes with the first terminal;

determining a greater of the third isolation value and the fourth isolation value as the second spatial isolation value.

in the above scheme, when determining the spatial isolation value required for each direction, the method includes:

Determining the thermal noise in the receiving bandwidth of the receiver according to the bandwidth of the receiver in the corresponding direction, the noise density of the thermal noise and the noise coefficient of the receiver;

determining the maximum allowable received interference level value of the receiver by using the parameter index of the acceptable sensitivity deterioration degree of each receiver in the corresponding direction and the determined thermal noise in the receiving bandwidth of the receiver;

And the equivalent transmitting power of the transmitter in the corresponding direction in the receiving bandwidth is subtracted from the determined maximum allowable received interference level value of the receiver to obtain the spatial isolation value required by the corresponding direction.

in the foregoing solution, before determining a guard band cell from each cell in the first area by using the path loss value, the set first spatial isolation value, and the set second spatial isolation value, the method further includes:

Determining the first spatial isolation value according to the maximum tolerable noise rise of the first terminal and the first base station or the MR data;

and determining the second spatial isolation value according to the tolerable maximum noise rise of the second base station and the second terminal or the MR data.

in the foregoing solution, the determining a guard band cell from each cell of the first area by using the path loss value and the set first spatial isolation value includes:

For each interference cell, when the absolute number of sample points of which the path loss value is smaller than the first spatial isolation value in the corresponding MR data exceeds a fifth threshold and/or the corresponding third proportion exceeds a sixth threshold, determining the corresponding interference cell as a guard band cell;

Wherein the third ratio is: for each interference cell, the ratio of the absolute number of sample points with the path loss value smaller than the first spatial isolation value to the absolute number of all the corresponding MR sample points is calculated; the first region includes the second region and the third region; the second region and the third region are adjacent regions.

In the foregoing solution, the determining a guard band cell from each cell in the first area by using the path loss value and the set second spatial isolation value includes:

Filtering out a service cell from the MR data collected in the first region, wherein the service cell is a cell in a second region, and an interference cell is a sample point of each cell in the first region;

For each service cell, when the absolute number of sample points of which the path loss value is smaller than the second spatial isolation value in the corresponding MR data exceeds a seventh threshold and/or the corresponding fourth proportion exceeds an eighth threshold, determining that the corresponding cell is a guard band cell;

wherein the fourth ratio is: for each service cell, the proportion of all sample points with the path loss value smaller than the second spatial isolation value in all the corresponding MR data to the absolute number of all the corresponding MR sample points is calculated; the first region includes the second region and the third region; the second region and the third region are adjacent regions.

In the foregoing solution, the determining a guard band cell from each cell of the first area by using the path loss value, the set first spatial isolation value, and the set second spatial isolation value includes:

filtering out a serving cell from the MR data collected in the first region as a cell in the first region, wherein an interference cell is a sample point of a cell in a second region; for each interference cell, when the absolute number of sample points of which the path loss value is smaller than the first spatial isolation value in the corresponding MR data exceeds a fifth threshold and/or the corresponding third proportion exceeds a sixth threshold, determining the corresponding interference cell as a guard band cell; wherein the third ratio is: for each interference cell, the ratio of the absolute number of sample points with the path loss value smaller than the first spatial isolation value to the absolute number of all the corresponding MR sample points is calculated; and

Filtering out a service cell from the MR data collected in the first region, wherein the service cell is a cell in a second region, and an interference cell is a sample point of each cell in the first region; for each service cell, when the absolute number of sample points of which the path loss value is smaller than the second spatial isolation value in the corresponding MR data exceeds a seventh threshold and/or the corresponding fourth proportion exceeds an eighth threshold, determining that the corresponding cell is a guard band cell; wherein the fourth ratio is: for each service cell, the proportion of all sample points with the path loss value smaller than the second spatial isolation value in all the corresponding MR data to the absolute number of all the corresponding MR sample points is calculated;

the first region includes the second region and the third region; the second region and the third region are adjacent regions.

The embodiment of the invention also provides a device for determining the space isolation zone, which comprises the following steps: the device comprises a data acquisition module and a protective band cell determination module; wherein the content of the first and second substances,

The data acquisition module is used for acquiring MR data of a first communication system in a first area;

A guard band cell determination module configured to determine a guard band cell from the cells of the first region using the MR data.

In the foregoing solution, the guard band cell determining module includes: a first determining module and a second determining module; wherein the content of the first and second substances,

the first determining module is used for obtaining the receiving level value of each cell of the first communication system in the first area according to the MR data;

And the second determining module is configured to determine a guard band cell from each cell of the first area according to the reception level value and the set first level threshold value and/or second level threshold value.

in the above scheme, the apparatus further comprises: a first setting module, configured to determine the first level threshold according to a maximum tolerable base noise rise amount of a second terminal of the second communication system or the MR data; and/or, the second level threshold value is determined according to the maximum tolerable amount of noise rise of the first terminal of the first communication system or the MR data.

in the above scheme, the data acquisition module is further configured to acquire engineering parameters of a first communication system in a first region when MR data of the first communication system in the first region is acquired;

accordingly, the guardband cell determination module comprises: a third determining module and a fourth determining module; wherein the content of the first and second substances,

The third determining module is configured to determine, according to the MR data and the engineering parameters, a path loss value from the second area cell to the first terminal under the third area cell and a path loss value from the third area cell to the first terminal under the second area cell;

the fourth determining module is configured to determine a guard band cell from each cell of the area by using the path loss value and the set first spatial isolation value and/or second spatial isolation value; wherein the content of the first and second substances,

the first spatial isolation value is a spatial isolation value required between a second terminal of the second communication system and a first base station of the first communication system; the second spatial isolation value is a spatial isolation value required between a second base station of the second communication system and a first terminal of the first communication system; the first region includes the second region and the third region; the second region and the third region are adjacent regions.

In the above scheme, the apparatus further comprises: a second setting module, configured to determine the first spatial isolation value according to a tolerable maximum noise rise or the MR data of the first terminal and the first base station; and/or determining the second spatial isolation value according to the maximum tolerable noise rise of the second base station and the second terminal or the MR data.

The method and the device for determining the space isolation zone, provided by the embodiment of the invention, are used for acquiring MR data of a first communication system in a first area; and determining a guard band cell from each cell of the first area by using the MR data, so that the cell needing to be set as the guard band can be determined clearly, the network planning process when the guard band is set is greatly simplified, and the performances of the first communication system and the second communication system can be effectively ensured.

drawings

In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. Like reference numerals having different letter suffixes may represent different examples of similar components. The drawings illustrate generally, by way of example, but not by way of limitation, various embodiments discussed herein.

Fig. 1 is a schematic diagram of the frequency usage principle of each region in a scene with inconsistent transpiration frequency center frequency points or bandwidths in different regions;

FIG. 2 is a schematic flow chart illustrating a method for determining a spatial isolation zone according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of co-channel interference between an original system and a new system according to an embodiment of the present invention;

Fig. 4 is a schematic diagram of an application scenario in which the center frequency points or bandwidths of the frequencies used in different areas are inconsistent when GSM partial frequencies are replanted to the LTE FDD system according to the second embodiment of the present invention;

fig. 5 is a schematic diagram illustrating frequency use suggestions of each region when bandwidths or center frequency points between different regions are not consistent when GSM is handed over to an LTE FDD system according to a second embodiment of the present invention;

Fig. 6 is a schematic diagram of an application scenario in which the center frequency points or bandwidths of the frequencies used in different areas are inconsistent when the GSM partial frequency is replanted to the WCDMA system according to the third embodiment of the present invention;

fig. 7 is a schematic diagram illustrating frequency use suggestions of different regions when bandwidths or center frequency points between different regions are not consistent when GSM is adopted to WCDMA system according to the embodiment of the present invention;

fig. 8 is a schematic diagram of an application scenario in which the center frequency points or bandwidths of the frequencies used in different areas are inconsistent when part of the frequencies of the four-CDMA system is re-cultivated to the LTE FDD system according to the embodiment of the present invention;

Fig. 9 is a schematic diagram illustrating frequency use suggestions of different regions when a four-CDMA system is handed over to an LTE FDD system according to an embodiment of the present invention and bandwidths or center frequency points between different regions are not consistent;

Fig. 10 is a schematic structural diagram of a fifth apparatus for determining a spatial isolation zone according to an embodiment of the present invention.

Detailed Description

the present invention will be described in further detail with reference to the accompanying drawings and examples.

In various embodiments of the invention: acquiring MR data of a first communication system in a first area; determining a guard band cell from among the cells of the first region using the MR data.

example one

The method for determining the spatial isolation zone in the embodiment can be applied to the frequency re-tillage process, and as shown in fig. 2, the method comprises the following steps:

step 201: acquiring MR data of a first communication system in a first area; the use efficiency of the spectrum resources of the first communication system is lower than that of the spectrum resources of the second communication system; the first region comprises a second region and a third region; the second region is adjacent to the third region;

Here, in practical applications, the first Communication System may be a Global System for Mobile Communication (GSM); accordingly, the second communication system may be a Long Term Evolution (LTE) Frequency Division Duplex (FDD) system or a Wideband Code Division Multiple Access (WCDMA) system. The first communication system may be a Code Division Multiple Access (CDMA) system; accordingly, the second communication system may be an LTE FDD system or the like.

In practical application, the ranges of the first region, the second region, and the third region may be set as needed. For example, if a GSM frequency band to LTE FDD system needs to be performed in the western city of beijing, the second area is the western city of beijing, and the third area is a cell around the western city of beijing; wherein the range of the third region may be set based on experience or common sense, such as: cells within a peripheral 10km range may be set.

Step 202: determining a guard band cell from among the cells of the first region using the MR data.

specifically, according to the MR data, obtaining the receiving level value of each cell of the first communication system in the first area;

Before obtaining the reception level values of the cells of the first communication system in the first area according to the MR data, the method may further include:

when the guard band cell is determined by using the first level threshold value but not the second level threshold value, only the first level threshold value can be determined; accordingly, when a guardband cell is determined using the second level threshold value without using the first level threshold value, then only the second level threshold value may be determined; when the guard band cell is determined by using the first level threshold and the second level threshold at the same time, the first level threshold and the second level threshold need to be determined at the same time.

the determining the first level threshold according to the maximum tolerable base noise rise of the second terminal of the second communication system specifically includes:

The determining the second level threshold according to the maximum tolerable base noise rise amount of the first terminal of the first communication system or the MR data specifically includes:

When the first level threshold value is determined using the MR data, it may be determined by means of simulation experiments or test verification. Here, when the determination is performed by a simulation experiment, a corresponding electronic map, engineering parameters, a built simulation model, and the like are also required. When the determination is made by the test verification method, a corresponding test area needs to be selected, then an isolation zone is set according to a certain level threshold value by the following method (the corresponding method of the three methods of determining the guard band cell from each cell of the first area), then whether the selected isolation zone is suitable is verified, and finally the first level threshold value is obtained through a search process of continuous selection and verification.

Accordingly, when the second level threshold value is determined using the MR data, it may be determined by means of simulation experiment or test verification. Here, when the determination is performed by a simulation experiment, a corresponding electronic map, engineering parameters, a built simulation model, and the like are also required. When the determination is made by the test verification method, a corresponding test area needs to be selected, then an isolation zone is set according to a certain level threshold value by the following method (the corresponding method of the three methods of determining the guard band cell from each cell of the first area), then whether the selected isolation zone is suitable is verified, and finally the second level threshold value is obtained through a groping process of continuous selection and verification.

In practical application, the guard band cell may be determined from each cell of the first area by one of the following three ways according to the reception level value and the set first level threshold value and/or second level threshold value:

In a first manner, a serving cell is filtered from MR data collected in a first region and an interfering cell is a sample point of a cell in a second region; for each interfering cell, when the absolute number of sample points of which the receiving level values in the corresponding MR data are higher than the first level threshold exceeds a first threshold and/or the corresponding first ratio exceeds a second threshold, determining that the interfering cell is a guard band cell; wherein, the first proportion refers to: for each interfering cell, the ratio of the reception level value greater than the first level threshold value in all its corresponding MR data to the absolute number of all its corresponding MR sample points.

In a second way, the serving cell is filtered from the MR data collected in the first region and is a cell in the second region, and the interfering cell is a sample point of a cell in the first region. And for each service cell, when the absolute number of sample points of which the receiving level values in the corresponding MR data are higher than the second level threshold exceeds a third threshold value and/or the second proportion of the sample points exceeds a fourth threshold value, determining that the corresponding cell is a guard band cell. Wherein the second ratio is: for each serving cell, the ratio of the absolute number of the received level values in all the corresponding MR data which are greater than the second level threshold value to all the corresponding MR sample points is calculated.

In the third mode, the cells determined by the first mode and the second mode are set as the guard band cells.

the first threshold, the second threshold, the third threshold and the fourth threshold can be determined through simulation experiments or through a method of existing network test exploration, so that the determined guard band cell meets the isolation requirement of the second communication system communication in the first area.

In an embodiment, when acquiring MR data of the first communication system in the first region, the method may further include:

and acquiring engineering parameters of the first communication system in the first area.

Correspondingly, according to the MR data and the engineering parameters, determining a path loss value from the second area cell to the first terminal under the third area cell and from the third area cell to the first terminal under the second area cell;

determining a guard band cell from each cell of the first area by using the path loss value and the set first spatial isolation value and/or second spatial isolation value; the first spatial isolation value is a spatial isolation value required between a second terminal of the second communication system and a first base station of the first communication system; the second spatial isolation value is a spatial isolation value required between a second base station of the second communication system and a first terminal of the first communication system.

specifically, determining a path loss value from the second area cell to a first terminal under the third area cell and from the third area cell to a first terminal under the second area cell by using the interference cell level received by the terminal in the MR data and the corresponding interference cell transmitting power in the engineering parameters;

here, the determining, by using the interference cell level received by the terminal in the MR data and the corresponding interference cell transmission power in the engineering parameter, the path loss value from the second area cell to the third area cell to the first terminal in the second area cell includes:

And obtaining a path loss value from the second area cell to the first terminal under the third area cell and from the third area cell to the first terminal under the cell in the second area by subtracting the interference cell level received by the terminal from the interference cell transmitting power.

in practical application, the determined path loss value may be as shown in table 1 by using the MR data and the engineering parameters, so as to determine the guard band cell by using the determined path loss value.

MR acquisition cell ID	interfering cell ID	Path loss from interfering cell to reporting terminal
			Scell_ID_0	Icell_ID_0	PL_0
…	…	…
			Scell_ID_N	Icell_ID_N	PL_N

TABLE 1

here, before determining a guard band cell from each cell of the area by using the path loss value, the set first spatial isolation value, and/or the set second spatial isolation value, the method may further include:

determining the first spatial isolation value according to the maximum tolerable noise rise of the second terminal and the first base station or the MR data;

in the application scenario shown in fig. 3, the frequency bandwidths or the center frequency points of the areas 1 and 2 to be used in the new system (i.e., the second communication system) are not consistent, and a guard band needs to be set between the two areas to provide spatial isolation. Considering the interference between the new system in the area 1 and the original system in the area 2 (i.e. the first communication system) (the interference between the original system in the area 1 and the new system in the area 2 is similar to this, and when analyzing this part of interference, only the area 1 and the area 2 need to be exchanged in the following content), the co-channel interference may exist in four directions as shown in fig. 3:

interference of an original system base station to a new system terminal;

The interference of the original system terminal to the new system base station;

Interference of the new system base station to the original system terminal;

And the new system terminal interferes with the original system base station.

Because the difference of the uplink frequency is small, the difference of the path loss caused by the difference of the uplink frequency and the downlink frequency can be ignored, and in this case, if the performance of the two systems (the new system and the original system) is to be ensured, a certain spatial isolation degree needs to be provided between the new system base station and the original system terminal and between the original system base station and the new system terminal.

based on this, the determining the first spatial isolation value according to the maximum tolerable base noise rise of the second terminal and the first base station specifically includes:

The determining the second spatial isolation value according to the maximum tolerable base noise rise of the second base station and the first terminal specifically includes:

when the spatial isolation value required by each direction is determined, determining the thermal noise in the receiving bandwidth of the receiver according to the bandwidth of the receiver in the corresponding direction, the noise density of the thermal noise and the noise coefficient of the receiver; calculating the maximum allowable received interference level value of the receiver by using the parameter indexes of the acceptable sensitivity deterioration degree of each receiver in the corresponding direction and the determined thermal noise in the receiving bandwidth of the receiver (obtaining the maximum allowable received interference level value of the receiver by calculating the difference of the parameter indexes and the determined thermal noise in the receiving bandwidth of the receiver); and (3) calculating the difference between the equivalent transmitting power of the transmitter in the corresponding direction in the receiving bandwidth and the calculated maximum allowable received interference level value of the receiver, and finally obtaining the spatial isolation value required by the corresponding direction.

When the first spatial isolation value is determined using the MR data, it may be determined by means of simulation experiments or test verification. Here, when the determination is performed by a simulation experiment, a corresponding electronic map, engineering parameters, a built simulation model, and the like are also required. When the first space isolation value is determined by the test verification method, a corresponding test area needs to be selected, then an isolation zone is set according to a certain space isolation value by the following method (the corresponding method of the three methods of determining the guard band cell from each cell of the first area), then whether the selected isolation zone is suitable is verified, and finally the first space isolation value is obtained through a groping process of continuous selection and verification.

Accordingly, when the second spatial isolation value is determined using the MR data, it may be determined by means of simulation experiments or test verification. Here, when the determination is performed by a simulation experiment, a corresponding electronic map, engineering parameters, a built simulation model, and the like are also required. When the determination is performed by the test verification method, a corresponding test area needs to be selected, then an isolation zone is set according to a certain spatial isolation value by the following method (a corresponding method of three methods of determining a guard band cell from each cell of the first area), then whether the selected isolation zone is suitable is verified, and finally the second spatial isolation value is obtained through a search process of continuous selection and verification.

in practical application, the guard band cell can be determined in one of the following three ways:

in a first manner, a serving cell is filtered from MR data collected in a first region and an interfering cell is a sample point of a cell in a second region; and for each interference cell, when the absolute number of sample points of which the path loss value is smaller than the first spatial isolation value in the corresponding MR data exceeds a fifth threshold and/or the corresponding third proportion exceeds a sixth threshold, determining that the corresponding interference cell is a guard band cell. Wherein the third ratio is: for each interfering cell, the ratio of the absolute number of sample points with the path loss value smaller than the first spatial isolation value to the absolute number of all the corresponding MR sample points is calculated.

In a second mode, a serving cell is filtered from the MR data collected in the first region and is a cell in a second region, and an interfering cell is a sample point of each cell in the first region; and for each service cell, when the absolute number of sample points of which the path loss value is smaller than the second spatial isolation value in the corresponding MR data exceeds a seventh threshold and/or the corresponding fourth proportion exceeds an eighth threshold, determining that the corresponding cell is a guard band cell. Wherein the fourth ratio is: and for each service cell, the proportion of all sample points with the path loss value smaller than the second spatial isolation value in all the corresponding MR data to the absolute number of all the corresponding MR sample points is calculated.

the fifth threshold, the sixth threshold, the seventh threshold and the eighth threshold can be determined through simulation experiments or a method of existing network test and exploration, so that the determined guard band cell meets the isolation requirement of the communication of the second communication system in the first area.

The method for determining the space isolation zone provided by the embodiment of the invention obtains MR data of a first communication system in a first area; the use efficiency of the spectrum resources of the first communication system is lower than that of the spectrum resources of the second communication system; determining a guard band cell from among the cells of the first region using the MR data. Therefore, the cell needing to be set as the guard band can be determined clearly, the network planning process when the guard band is set is greatly simplified, and the performances of the first communication system and the second communication system can be effectively ensured.

In addition, the scheme of the embodiment of the invention is an effective and feasible determination method.

Example two

On the basis of the first embodiment, the present embodiment describes in detail how to determine the spatial isolation zone.

the application scenario of this embodiment is as follows: as shown in fig. 4, the operator needs to make the use of part of the spectrum resources used by GSM available for the more efficient use of the LTE FDD system. Among them, the rhythm of the frequencies used by the GSM among the areas (areas 1 and 2) or the frequency bands used for the LTE FDD system may be inconsistent, so that the LTE FDD center frequency points or bandwidths of the frequencies used by the GSM among the areas may be inconsistent. Since the sensitivity of the base station and the terminal receiver of the GSM and LTE FDD systems are different and the transmission power is greatly different, in this scenario, a guard band needs to be set between the regions to reduce the inter-system interference. The frequency usage of the guard band is shown in fig. 5.

As shown in fig. 4, in an actual scenario, a guard band between two regions may be set in region 1 or region 2 according to the frequency available in regions 1 and 2. In this embodiment, assuming that a guard band is set in the area 2, the specific steps are as follows:

Step 1: according to the receivable sensitivity deterioration degree of the terminal and the base station receiver of the GSM and LTE FDD systems, combining the transmitter power of each direction, a larger value T1 (a first space isolation value) in the space isolation value needed by the direction 1 and the space isolation value needed by the direction 4 and a larger value T2 (a second space isolation value) in the space isolation value needed by the direction 2 and the space isolation value needed by the direction 3 in the application scene shown in the figure 4 are obtained; or, obtaining a first level threshold value T3 and a second level threshold value T4 according to the acceptable sensitivity deterioration degree of the terminal of the LTE FDD system and the terminal of the GSM;

Here, the direction 1 is interference of the GSM base station to the LTE FDD system terminal, the direction 2 is interference of the GSM terminal to the LTE FDD system base station, the direction 3 is interference of the LTE FDD system base station to the GSM terminal, and the direction 4 is interference of the LTE FDD system terminal to the GSM base station.

in practical application, when determining T1 and T2, parameter indexes commonly used in the industry for measuring the receivable sensitivity deterioration degree of a GSM terminal and a base station receiver, parameter indexes commonly used in the industry for measuring the receivable sensitivity deterioration degree of a lte tdd system terminal and a base station receiver are adopted, and in combination with the transmitter power in each direction defined by a protocol, link operation is utilized to obtain T1 and T2; alternatively, T1 and T2 can be derived by way of simulation experiments or test verifications.

When the spatial isolation values needed by the directions 1, 2, 3 and 4 are determined, determining the thermal noise in the receiving bandwidth of the receiver according to the bandwidth of the receiver in the corresponding direction, the noise density of the thermal noise and the noise coefficient of the receiver; then, calculating the maximum allowable received interference level value of the receiver (obtaining the maximum allowable received interference level value of the receiver by calculating the difference between the maximum allowable received interference level value and the maximum allowable received interference level value of the receiver) by using the parameter index (the maximum bottom noise rise caused by allowable interference) of the acceptable sensitivity deterioration degree of each receiver in the corresponding direction and the determined thermal noise in the receiving bandwidth of the receiver; and (3) calculating the difference between the equivalent transmitting power of the transmitter in the receiving bandwidth in the corresponding direction and the calculated maximum allowable received interference level value of the receiver, and finally obtaining the required spatial isolation value in the corresponding direction.

when determined by a simulation experiment, MR data, a corresponding electronic map, engineering parameters, an established simulation model, and the like are required. When the determination is carried out through a test verification mode, MR data is needed, a corresponding test area is selected, then an isolation zone is determined according to certain T1 and T2 values according to the following method (the corresponding mode of three modes that T1 and T2 are adopted to determine a guard band cell from an area 2), then whether the selected isolation zone is suitable is verified, and finally T1 and T2 are obtained through a groping process of continuous selection and verification.

Accordingly, when determining T3 and T4, the parameter index commonly used in the industry for measuring the acceptable sensitivity deterioration degree of the terminal and base station receiver of GSM, and the parameter index commonly used in the industry for measuring the acceptable sensitivity deterioration degree of the terminal and base station receiver of the lte tdd system can be adopted.

Specifically, according to the receiving bandwidth and the thermal noise power of the LTE FDD system terminal, the thermal noise power in the receiving bandwidth is determined; determining the receivable maximum interference level according to the maximum tolerable base noise rise of the terminal of the LTE FDD system; and the maximum interference level is differenced with the thermal noise power in the determined receiving bandwidth to obtain T3.

correspondingly, determining the thermal noise power in the receiving bandwidth according to the receiving bandwidth and the thermal noise power of the GSM terminal; determining the maximum receivable interference level according to the maximum tolerable base noise rise of the GSM terminal; and the maximum interference level is differenced with the thermal noise power in the determined receiving bandwidth to obtain T4.

when T3 and T4 are determined by simulation experiments, MR data, corresponding electronic maps, engineering parameters, and established simulation models, etc. are required. When determining T3 and T4 by means of test verification, MR data is needed, corresponding test regions are selected, then an isolation band is set according to certain T3 and T4 values in the following manner (hereinafter, corresponding manner of three manners of determining a guard band cell from region 2 by using T3 and T4), then whether the selected isolation band is appropriate is verified, and finally T3 and T4 are obtained through a groping process of continuous selection and verification.

Step 2: collecting GSM MR data of all areas through network management or drive test, and determining a guard band cell from the area 2 by using the MR data;

specifically, a process of determining a guardband cell includes:

extracting and sorting out the information shown in the table 1 by utilizing the MR data and combining the engineering parameter information such as the transmitting power of each base station of the GSM;

The reporting terminal is positioned in an MR acquisition cell;

The calculation formula of the path loss value is as follows:

the path loss value is the interfering cell transmit power-the interfering cell level received by the terminal.

Here, the interference cell level received by the terminal can be obtained through MR data; and obtaining the transmission power of the interference cell through the engineering parameter information, and further obtaining the path loss value from the corresponding interference cell to the reporting terminal according to the formula.

The guardband cell is determined using the information in table 1.

Here, in practical application, the guard band cell may be determined in one of the following three ways:

In the first way, the serving cell (MR data acquisition cell) is filtered from the information in table 1 as a cell in area 1, and the interfering cell is a sample point of a cell in area 2. For a certain interfering cell, assume that the number of sample points in which the interfering cell is the cell among all MR sample points is N. And if the absolute number of the sample points with the path loss values smaller than T1 exceeds N1 and/or the proportion exceeds P1, the interference cell does not meet the isolation requirement with the LTE base station or the terminal in the area 1, and the interference cell is determined to be a guard band cell. Wherein the ratio is: n1 in proportion to N.

In the second mode, a serving cell (MR data acquisition cell) is filtered from the information in table 1 and is a cell in area 2, and an interfering cell is a sample point of a cell in area 1, and for a certain serving cell (a cell in area 2), it is assumed that the number of sample points in all MR sample points is M, where the serving cell is the cell. If the number of the path loss values in the sample points is less than T2 and the absolute number of the sample points exceeds N2, and/or the proportion exceeds P2, the cell cannot meet the isolation requirement of the base station and the terminal of the area 1LTE FDD system, and the serving cell is determined to be a guard band cell. Wherein the ratio is: n2 in proportion to M.

The second procedure for determining the guardband cell includes:

Directly utilizing GSM MR data in the whole area to obtain the receiving level values of GSM cells in the whole area (area 1 and area 2);

the guard band cell is determined using the reception level value in the MR data.

in the first way, a serving cell (MR data acquisition cell) is directly filtered out as a cell in area 1, and an interfering cell is a sample point of a cell in area 2. For a certain interfering cell, the number of samples of which the interfering cell is the interfering cell in all the sample points is assumed to be Q. And comparing the receiving level value in the sample number with T3, and if the absolute number of sample points with the receiving level larger than T3 exceeds N3 and/or the proportion thereof exceeds P3, determining that the interference cell does not meet the isolation requirement with the LTE base station or the terminal in the area 1 and determining that the interference cell is a guard band cell. Wherein the ratio is: n3 in Q.

in the second method, a serving cell (MR data acquisition cell) is directly filtered out as each cell in the area 2, and an interfering cell is a sample point of each cell in the area 1. For a certain serving cell (cell within area 2), let the number of samples of which the serving cell is a certain cell among all samples be R. And comparing the receiving level value in the sample number with T4, and if the absolute number of sample points of which the receiving level value is greater than T4 exceeds N4 and the proportion thereof exceeds P4, determining that the serving cell does not meet the isolation requirement with the LTE base station or the terminal in the area 1 and determining that the serving cell is a guard band cell. Wherein the ratio is: n4 as a proportion of R.

wherein, N1, P1, N2, P2, N3, P3, N4 and P4 can be determined through simulation experiments or by collecting data in the current network, so that the determined guard band cell meets the isolation requirement of the base station or terminal of the LTE FDD system in the area 1.

EXAMPLE III

the application scenario of this embodiment is as follows: as shown in fig. 6, the operator needs to make free part of the spectrum used by GSM for more efficient WCDMA system usage. Among them, the rhythm of the frequencies used by the GSM system among the areas (areas 1 and 2) or the frequency bands used by the GSM system may be inconsistent, so that the WCDMA center frequency points or bandwidths of the frequencies used by the GSM system among the areas may be inconsistent. Because the sensitivities of the GSM and WCDMA base stations and the terminal receiver are different and the transmission power is greatly different, in this scenario, a guard band needs to be set between the regions to reduce the interference between the systems. The frequency usage of the guard band is shown in fig. 7.

as shown in fig. 6, in an actual scenario, a guard band between two regions may be set in region 1 or region 2 according to the frequency available in regions 1 and 2. In this embodiment, assuming that a guard band is set in the area 2, the specific steps are as follows:

Step 1: according to the acceptable sensitivity deterioration degree of the terminal and the base station receiver of the GSM and WCDMA systems, combining the transmitter power of each direction, the larger value T1 (the first spatial isolation value) of the spatial isolation value required by the direction 1 and the spatial isolation value required by the direction 4 and the larger value T2 (the second spatial isolation value) of the spatial isolation value required by the direction 2 and the spatial isolation value required by the direction 3 in the application scene shown in the figure 6 are obtained; or, a first level threshold value T3 and a second level threshold value T4 are obtained according to the acceptable sensitivity deterioration degree of the terminal of the WCDMA system and the terminal of the GSM;

Here, the direction 1 is interference of the GSM base station to the WCDMA system terminal, the direction 2 is interference of the GSM terminal to the WCDMA system base station, the direction 3 is interference of the WCDMA system base station to the GSM terminal, and the direction 4 is interference of the WCDMA system terminal to the GSM base station.

in practical application, when determining T1 and T2, parameter indexes commonly used in the industry for measuring the acceptable sensitivity deterioration degree of a GSM terminal and a base station receiver, parameter indexes commonly used in the industry for measuring the acceptable sensitivity deterioration degree of a WCDMA terminal and a base station receiver, and transmitter power in each direction defined by a protocol are combined to obtain T1 and T2 by using link operation.

When determined by a simulation experiment, MR data, a corresponding electronic map, engineering parameters, an established simulation model, and the like are required. When the determination is carried out through a test verification mode, MR data is needed, a corresponding test area is selected, then an isolation zone is set according to certain T1 and T2 values according to the following method (the corresponding mode of three modes that T1 and T2 are adopted to determine a guard band cell from an area 2), then whether the selected isolation zone is suitable is verified, and finally T1 and T2 are obtained through a groping process of continuous selection and verification.

Accordingly, when determining T3 and T4, the parameter index commonly used in the industry for measuring the acceptable sensitivity deterioration degree of the terminal and base station receiver of GSM, and the parameter index commonly used in the industry for measuring the acceptable sensitivity deterioration degree of the terminal and base station receiver of WCDMA system can be adopted.

specifically, according to the receiving bandwidth and the thermal noise power of the WCDMA system terminal, determining the thermal noise power in the receiving bandwidth; determining the maximum receivable interference level according to the maximum tolerable base noise rise of the terminal of the WCDMA system; and the maximum interference level is differenced with the thermal noise power in the determined receiving bandwidth to obtain T3.

Specifically, a process of determining a guardband cell includes:

the information shown in table 1 is extracted and collated by using the MR data and combining the work parameter information such as the transmitting power of each base station of the GSM. The reporting terminal is positioned in an MR acquisition cell;

The calculation formula of the path loss value is as follows:

the guardband cell is determined using the information in table 1.

In the first method, a serving cell (MR data acquisition cell) is filtered from the information in table 1 and is a cell in area 1, an interfering cell is a sample point of a cell in area 2, and for a certain interfering cell, it is assumed that the number of sample points in all MR sample points is N. If the absolute number of the sample points with the path loss value smaller than T1 exceeds N1 and/or the proportion exceeds P1, the interference cell does not meet the isolation requirement with the WCDMA base station or the terminal in the area 1, and the interference cell is determined to be a guard band cell. If the sample points of the MR reporting cells corresponding to all the terminals in the interfering cell are K, the ratio is: n1 in proportion to N.

In the second mode, a serving cell (MR data acquisition cell) is filtered from the information in table 1 and is a cell in area 2, and an interfering cell is a sample point of a cell in area 1, and for a certain serving cell (a cell in area 2), it is assumed that the number of sample points in all MR sample points is M, where the serving cell is the cell. If the path loss value is less than T2 sample point absolute number and exceeds N2 and/or the proportion exceeds P2 in the sample points, the cell can not meet the isolation requirement of the base station and the terminal of the area 1WCDMA system, and the serving cell is determined to be a guard band cell. Wherein, the ratio is: n2 in proportion to M.

the second procedure for determining the guardband cell includes:

wherein, N1, P1, N2, P2, N3, P3, N4 and P4 can be determined through simulation experiments or by collecting data in the current network, so that the determined guard band cell meets the isolation requirement of the base station or terminal of the WCDMA system in the area 1.

Example four

the application scenario of this embodiment is as follows: as shown in fig. 8, the operator needs to vacate part of the spectrum used by the CDMA system for more efficient LTE FDD system usage. The frequency spectrum-using rhythm among the areas of the CDMA system or the frequency bands which can be used for the LTE FDD system are inconsistent, so that the LTE FDD central frequency point or the bandwidth of the frequency spectrum-using rhythm among the areas of the CDMA system is possibly inconsistent. Since the base station and terminal receiver sensitivity of the CDMA system and the lte fdd system are different and the transmission power is greatly different, in this scenario, a guard band needs to be set between the areas to reduce the interference between the systems. The frequency usage of the guard band is shown in fig. 9.

As shown in fig. 8, in an actual scenario, a guard band between two regions may be set in region 1 or region 2 according to the frequency available in regions 1 and 2. In this embodiment, assuming that a guard band is set in the area 2, the specific steps are as follows:

step 1, according to the acceptable sensitivity deterioration degree of the terminal and the base station receiver of the CDMA system and the LTE FDD system, combining the transmitter power of each direction, obtaining a larger value T1 (a first space isolation value) in the space isolation value needed by the direction 1 and the space isolation value needed by the direction 4 and a larger value T2 (a second space isolation value) in the space isolation value needed by the direction 2 and the space isolation value needed by the direction 3 in the application scene of figure 8; or, a first level threshold value T3 and a second level threshold value T4 are obtained according to the acceptable sensitivity deterioration degree of the terminal of the WCDMA system and the terminal of the GSM;

here, direction 1 is interference of the CDMA system base station to the LTE FDD system terminal, direction 2 is interference of the CDMA system terminal to the LTE FDD system base station, direction 3 is interference of the LTE FDD system base station to the CDMA system terminal, and direction 4 is interference of the LTE FDD system terminal to the CDMA system base station.

in practical application, when determining T1 and T2, parameter indexes commonly used in the industry for measuring the acceptable sensitivity deterioration degree of a terminal and a base station receiver of a CDMA system and parameter indexes commonly used in the industry for measuring the acceptable sensitivity deterioration degree of a terminal and a base station receiver of an LET FDD system can be adopted, and by combining the transmitter power in each direction defined by a protocol, link operation is utilized to obtain T1 and T2.

accordingly, when determining T3 and T4, the parameter index commonly used in the industry for measuring the acceptable sensitivity deterioration degree of the terminal and the base station receiver of the CDMA system and the parameter index commonly used in the industry for measuring the acceptable sensitivity deterioration degree of the terminal and the base station receiver of the LTE FDD system can be used.

Correspondingly, determining the thermal noise power in the receiving bandwidth according to the receiving bandwidth and the thermal noise power of the terminal of the CDMA system; determining the maximum receivable interference level according to the maximum tolerable base noise rise of the terminal of the CDMA system; and the maximum interference level is differenced with the thermal noise power in the determined receiving bandwidth to obtain T4.

Step 2: collecting CDMA MR data of all areas through network management or drive test, and determining a protective band cell from the area 2 by using the MR data;

specifically, a process of determining a guardband cell includes:

the information shown in table 1 is extracted and collated by using the MR data and combining the operating parameter information such as the transmission power of each base station of the CDMA system.

The reporting terminal is positioned in an MR acquisition cell;

the calculation formula of the path loss value is as follows:

The guardband cell is determined using the information in table 1.

In the first method, a serving cell (MR data acquisition cell) is filtered from the information in table 1 and is a cell in area 1, an interfering cell is a sample point of a cell in area 2, and for a certain interfering cell, it is assumed that the number of sample points in all MR sample points is N. If the absolute number of the sample points with the path loss value smaller than T1 exceeds N1 and/or the proportion exceeds P1, the interference cell does not meet the isolation requirement with the LTE FDD system base station or terminal in the area 1, and the interference cell is determined to be a guard band cell. Wherein the ratio is: n1 in proportion to N.

in the second mode, a serving cell (MR data acquisition cell) is filtered from the information in table 1 and is a cell in area 2, and an interfering cell is a sample point of a cell in area 1, and for a certain serving cell (a cell in area 2), it is assumed that the number of sample points in all MR sample points is M, where the serving cell is the cell. If the path loss value is less than T2 sample point absolute number M and exceeds N2 and/or the proportion exceeds P2 in the sample points, the cell can not meet the isolation requirement of the base station and the terminal of the area 1LTE FDD system, and the serving cell is determined to be a guard band cell. Wherein the ratio is: n2 in proportion to M.

the second procedure for determining the guardband cell includes:

EXAMPLE five

to implement the method of the embodiment of the present invention, the embodiment provides an apparatus for determining a spatial isolation zone, as shown in fig. 10, the apparatus includes: a data acquisition module 101 and a guard band cell determination module 102; wherein the content of the first and second substances,

the data acquisition module 101 is configured to acquire MR data of a first communication system in a first area; the use efficiency of the spectrum resources of the first communication system is lower than that of the spectrum resources of the second communication system;

a guard band cell determining module 102, configured to determine a guard band cell from the cells of the first area by using the MR data.

When the first communication system is actually applied, the first communication system may be a GSM; accordingly, the second communication system may be an LTE FDD system, a WCDMA system, or the like. The first communication system may be a CDMA system; accordingly, the second communication system may be an LTE FDD system or the like.

the first region comprises a second region and a third region; the second region is adjacent to the third region. Here, in actual use, the ranges of the first region, the second region, and the third region may be set as necessary. For example, if a GSM frequency band to LTE FDD system needs to be performed in the western city of beijing, the second area is the western city of beijing, and the third area is a cell around the western city of beijing; wherein the range of the third region may be set based on experience or common sense, such as: cells within a peripheral 10km range may be set.

The guard band cell determination module 102 may include: a first determining module and a second determining module; wherein the content of the first and second substances,

the apparatus may further include: a first setting module, configured to determine the first level threshold according to a maximum tolerable base noise rise amount of a second terminal of the second communication system or the MR data;

when the guard band cell is determined by using the first level threshold value but not the second level threshold value, the first setting module may only determine the first level threshold value; accordingly, when a guardband cell is determined using the second level threshold value without using the first level threshold value, the first setting module may determine only the second level threshold value; when the guard band cell is determined by using the first level threshold and the second level threshold at the same time, the first setting module needs to determine the first level threshold and the second level threshold at the same time.

The first setting module determines the thermal noise power in the receiving bandwidth according to the receiving bandwidth and the thermal noise power of the second terminal; determining the receivable maximum interference level according to the tolerable maximum base noise rise of the second terminal;

and the first setting module calculates the difference between the maximum interference level and the thermal noise power in the determined receiving bandwidth to obtain the first level threshold value.

The first setting module determines the thermal noise power in the receiving bandwidth according to the receiving bandwidth and the thermal noise power of the first terminal; determining the maximum receivable interference level according to the maximum tolerable base noise rise of the first terminal;

and the first setting module calculates the difference between the maximum interference level and the thermal noise power in the determined receiving bandwidth to obtain the second level threshold value.

In a first manner, the guard band cell determining module 102 filters a serving cell from the MR data collected in the first region as a cell in the first region, and an interfering cell as a sample point of a cell in a second region; for each interfering cell, when the absolute number of sample points of which the receiving level values in the corresponding MR data are higher than the first level threshold exceeds a first threshold and/or the corresponding first ratio exceeds a second threshold, determining that the interfering cell is a guard band cell; wherein, the first proportion refers to: for each interfering cell, the ratio of the reception level value greater than the first level threshold value in all its corresponding MR data to the absolute number of all its corresponding MR sample points.

Second, the guard band cell determining module 102 filters the serving cell from the MR data collected in the first region as a cell in the second region, and the interfering cell is a sample point of a cell in the first region. And for each service cell, when the absolute number of sample points of which the receiving level values in the corresponding MR data are higher than the second level threshold exceeds a third threshold value and/or the second proportion of the sample points exceeds a fourth threshold value, determining that the corresponding cell is a guard band cell. Wherein the second ratio is: for each serving cell, the ratio of the absolute number of the received level values in all the corresponding MR data which are greater than the second level threshold value to all the corresponding MR sample points is calculated.

in a third way, the guardband cell determining module 102 sets the cells determined by the first way and the second way as the guardband cells.

in an embodiment, the data acquisition module 101 is further configured to acquire engineering parameters of a first communication system in a first region when acquiring MR data of the first communication system in the first region;

accordingly, the guard band cell determination module 102 may include: a third determining module and a fourth determining module; wherein the content of the first and second substances,

the fourth determining module is configured to determine a guard band cell from each cell of the area by using the path loss value and the set first spatial isolation value and/or second spatial isolation value; the first spatial isolation value is a spatial isolation value required between a second terminal of the second communication system and a first base station of the first communication system; the second spatial isolation value is a spatial isolation value required between a second base station of the second communication system and a first terminal of the first communication system.

Specifically, the fourth determining unit determines the path loss values from the second area cell to the third area cell and from the third area cell to the first terminal in the second area cell by using the interference cell level received by the terminal in the MR data and the corresponding interference cell transmitting power in the engineering parameters;

The data acquisition module 101 calculates a difference between the transmission power of the interference cell and the level of the interference cell received by the terminal, and obtains a path loss value from the second area cell to the third area cell to the first terminal in the second area cell from the third area cell to the first terminal in the second area cell.

the apparatus may further include: a second setting module, configured to determine the first spatial isolation value according to the maximum tolerable base noise rise of the second terminal and the first base station or the MR data.

The second setting module is further configured to determine the second spatial isolation value according to a tolerable maximum noise rise of the second base station and the first terminal or the MR data.

In the application scenario shown in fig. 3, the frequency bandwidths or the center frequency points of the areas 1 and 2 to be used in the new system (i.e., the second communication system) are not consistent, and a guard band needs to be set between the two areas to provide spatial isolation. Considering the interference between the new system in the area 1 and the original system in the area 2 (i.e. the first communication system) (the interference between the original system in the area 1 and the new system in the area 2 is similar to this, and when analyzing this part of interference, only the area 1 and the area 2 need to be exchanged in the following content), the co-channel interference may exist in four directions as shown in fig. 4:

Interference of an original system base station to a new system terminal;

interference of the new system base station to the original system terminal;

and the new system terminal interferes with the original system base station.

The second setting module determines a first isolation value of the isolation required in the first direction and a second isolation value of the isolation required in the second direction according to parameter indexes used for representing the receivable sensitivity deterioration degree of the second terminal and the first base station receiver and by combining the power of transmitters in all directions; the first direction is an interference direction of the first base station to the second terminal; the second direction is an interference direction of the second terminal to the first base station;

the second setting module determines a larger value of the first isolation value and the second isolation value as the first spatial isolation value.

the second setting module determines a third isolation value of the isolation required by the third direction and a fourth isolation value of the isolation required by the fourth direction according to parameter indexes used for representing the receivable sensitivity deterioration degree of the first terminal and the second base station receiver and by combining the power of transmitters in all directions; the third direction is an interference direction of the first terminal to the second base station; the fourth direction is a direction in which the second base station interferes with the first terminal;

The second setting module determines a larger value of the third isolation value and the fourth isolation value as the second spatial isolation value.

When the spatial isolation value required by each direction is determined, the second setting module determines the thermal noise in the receiving bandwidth of the receiver according to the bandwidth of the receiver in the corresponding direction, the noise density of the thermal noise and the noise coefficient of the receiver; calculating the maximum allowable received interference level value of the receiver by using the parameter indexes of the acceptable sensitivity deterioration degree of each receiver in the corresponding direction and the determined thermal noise in the receiving bandwidth of the receiver (obtaining the maximum allowable received interference level value of the receiver by calculating the difference of the parameter indexes and the determined thermal noise in the receiving bandwidth of the receiver); and (3) calculating the difference between the equivalent transmitting power of the transmitter in the corresponding direction in the receiving bandwidth and the calculated maximum allowable received interference level value of the receiver, and finally obtaining the spatial isolation value required by the corresponding direction.

In practical applications, the guard band cell determining module 102 may determine the guard band cell in one of the following three ways:

In a first manner, a serving cell is filtered from MR data collected in a first region and an interfering cell is a sample point of a cell in a second region; and for each interference cell, when the absolute number of sample points of which the path loss value is smaller than the first spatial isolation value in the corresponding MR data exceeds a fifth threshold and/or the corresponding third proportion exceeds a sixth threshold, determining that the corresponding interference cell is a guard band cell. Wherein the third ratio is: and for each interference cell, the ratio of the absolute number of sample points with the path loss value smaller than the first spatial isolation value to the absolute number of corresponding MR sample points in all the corresponding MR sample points is calculated.

In a second mode, a serving cell is filtered from the MR data collected in the first region and is a cell in a second region, and an interfering cell is a sample point of a cell in the first region; and for each service cell, when the absolute number of sample points of which the path loss value is smaller than the second spatial isolation value in the corresponding MR data exceeds a seventh threshold and/or the corresponding fourth proportion exceeds an eighth threshold, determining that the corresponding cell is a guard band cell. Wherein the fourth ratio is: and for each service cell, the proportion of all sample points with the path loss value smaller than the second spatial isolation value in all the corresponding MR data to the absolute number of all the corresponding MR sample points is calculated.

in practical application, the data acquisition module 101, the first setting module and the second setting module may be implemented by a Processor (Central Processing Unit (CPU), Micro Control Unit (MCU), Digital Signal Processor (DSP), or Programmable logic Array (FPGA)) in a device for determining a spatial isolation zone in combination with a communication chip; the guardband cell determination module 102, the first determination module, the second determination module, the third determination module, and the fourth determination module may be implemented by a processor in an apparatus for determining a spatial isolation band.

in the device for determining a spatial isolation zone provided in the embodiment of the present invention, the data acquisition module 101 acquires MR data of a first communication system in a first region; the use efficiency of the spectrum resources of the first communication system is lower than that of the spectrum resources of the second communication system; the guardband cell determination module 102 determines a guardband cell from the cells of the first region using the MR data and the engineering parameters. Therefore, the cell needing to be set as the guard band can be determined clearly, the network planning process when the guard band is set is greatly simplified, and the performances of the first communication system and the second communication system can be effectively ensured.

in addition, the scheme of the embodiment of the invention is an effective and easy-to-determine scheme.

as can be seen from the above description, in the scheme of the embodiment of the present invention, the existing protection band setting mainly depends on simulation or engineering experience, there is no clear and feasible setting principle, and the effectiveness of the existing setting method is further reduced in a scene lacking an electronic map or in a scene where the terrain is more complex. In the embodiment of the invention, the isolation requirement between the original system and the new system is converted into a practical and feasible guard band cell setting principle through data such as the existing network MR data, engineering parameters and the like, and a clear and effective and feasible guard band determination scheme is provided. The scheme definitely indicates the cell needing to be set into the protective band based on the information which can be acquired by the current network, greatly simplifies the network planning flow when the protective band is set, and ensures that the performance of the two systems is effectively ensured.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

these computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. a method of determining a spatial separation zone, the method comprising:

Acquiring measurement report MR data of a first communication system in a first area; the first communication system needs to be handed over to a second communication system, and the use efficiency of the spectrum resources of the first communication system is lower than that of the spectrum resources of the second communication system;

determining a guard band cell from each cell of the first area according to the MR data;

the determining a guard band cell from the cells of the first region according to the MR data includes:

Determining a guard band cell from each cell of the first area according to the receiving level value and a set first level threshold value and/or a second level threshold value; or the like, or, alternatively,

when acquiring MR data of a first communication system in a first region, the method further comprises:

correspondingly, according to the MR data and the engineering parameters, determining a path loss value from a second area cell to a third area cell of a first terminal of the first communication system and from the third area cell to the first terminal in the second area cell;

2. The method according to claim 1, wherein before deriving the reception level values of the cells of the first communication system in the first area according to the MR data, the method further comprises:

3. the method according to claim 2, wherein the determining the first level threshold according to the maximum amount of noise rise floor tolerable for the second terminal of the second communication system is:

4. the method according to claim 2, wherein the determining the second level threshold according to the maximum amount of noise rise or the MR data tolerable for the first terminal of the first communication system is:

5. the method of claim 1, wherein the determining guard band cells from the cells of the first region according to the reception level value and the set first level threshold value comprises:

6. the method of claim 1, wherein the determining guard band cells from the cells of the first region according to the reception level value and a set second level threshold value comprises:

7. the method of claim 1, wherein the determining a guard band cell from the cells of the first region according to the reception level value and the set first level threshold value and second level threshold value comprises:

8. The method according to claim 1, wherein the determining the path loss values of the first terminal of the first communication system from the second area cell to the third area cell and from the third area cell to the first terminal in the second area cell according to the MR data and the engineering parameters is:

9. the method according to claim 8, wherein the determining the path loss values of the first terminal from the second cell to the third cell and the first terminal from the third cell to the second cell by using the interfering cell level received by the terminal in the MR data and the corresponding interfering cell transmitting power in the engineering parameters is:

10. the method of claim 1, wherein before determining the guardband cell from the cells in the first area using the path loss value and the set first spatial isolation value, the method further comprises:

11. The method of claim 10, wherein the determining the first spatial isolation value according to the maximum amount of noise floor rise tolerable for the first terminal and the first base station is:

12. The method of claim 1, wherein before determining the guardband cell from the cells in the first area using the path loss value and the set second spatial isolation value, the method further comprises:

13. The method according to claim 12, wherein the determining the second spatial isolation value according to the maximum amount of noise floor rise tolerable by the second base station and the first terminal is:

14. A method according to claim 11 or 13, wherein in determining the required spatial isolation value for each direction, the method comprises:

15. The method of claim 1, wherein before determining the guardband cell from the cells of the first area using the path loss value, the set first spatial isolation value, and the set second spatial isolation value, the method further comprises:

16. The method of claim 1, wherein the determining a guard band cell from the cells in the first area by using the path loss value and the set first spatial isolation value comprises:

17. The method of claim 1, wherein the determining a guard band cell from the cells in the first area by using the path loss value and the set second spatial isolation value comprises:

18. the method of claim 1, wherein the determining a guard band cell from the cells in the first area by using the path loss value, the set first spatial isolation value and the set second spatial isolation value comprises:

19. An apparatus for determining a spatial separation zone, the apparatus comprising: the device comprises a data acquisition module and a protective band cell determination module; wherein the content of the first and second substances,

The data acquisition module is used for acquiring MR data of a first communication system in a first area; the first communication system needs to be handed over to a second communication system, and the use efficiency of the spectrum resources of the first communication system is lower than that of the spectrum resources of the second communication system;

A guard band cell determination module, configured to determine a guard band cell from cells of the first region using the MR data;

the guard band cell determination module includes: a first determining module and a second determining module; wherein the content of the first and second substances,

the second determining module is configured to determine a guard band cell from each cell of the first area according to the reception level value and a set first level threshold value and/or a set second level threshold value; or the like, or, alternatively,

The data acquisition module is further configured to acquire engineering parameters of a first communication system in a first region when acquiring MR data of the first communication system in the first region;

20. The apparatus of claim 19, further comprising: a first setting module, configured to determine the first level threshold according to a maximum tolerable base noise rise amount of a second terminal of the second communication system or the MR data; and/or, the second level threshold value is determined according to the maximum tolerable amount of noise rise of the first terminal of the first communication system or the MR data.

21. The apparatus of claim 19, further comprising: a second setting module, configured to determine the first spatial isolation value according to a tolerable maximum noise rise or the MR data of the first terminal and the first base station; and/or determining the second spatial isolation value according to the maximum tolerable noise rise of the second base station and the second terminal or the MR data.