阅读说明：本技术 无线通信系统中生成用于网络设计的环境信息的装置和方法 (Apparatus and method for generating environment information for network design in wireless communication system ) 是由 朴原均 李淳永 朴成范 于 2019-02-14 设计创作，主要内容包括：本公开涉及用于支持比诸如长期演进(LTE)之类的第4代(4G)通信系统更高的数据传输速率的第5代(5G)或pre-5G的通信系统。本公开生成用于网络设计的环境信息,并且用于生成环境信息的方法可以包括：确定建筑物的基于拍摄的第一信息与基于测量的第二信息之间的位置差值；以及利用位置差值对利用第一信息确定的障碍物的位置进行校正。(The present disclosure relates to a 5 th generation (5G) or pre-5G communication system for supporting higher data transmission rates than a 4 th generation (4G) communication system such as Long Term Evolution (LTE). The present disclosure generates environment information for network design, and a method for generating the environment information may include: determining a position difference between the first shot-based information and the second measurement-based information of the building; and correcting the position of the obstacle determined using the first information using the position difference value.)

1. A method of generating environmental information in a wireless communication system, the method comprising:

determining a position difference between the first shot-based information and the second measurement-based information of the building; and

correcting the position of the obstacle determined using the first information using the position difference value.

2. The method of claim 1, further comprising:

determining the obstacle based on at least one of a distance from the building and a signal path between a receiver located in the building and a base station.

3. The method of claim 1, further comprising:

determining a position difference between the first information and the second information of another building,

wherein the position of the obstacle is corrected based on the position difference of the building and the position difference of the other building.

4. The method of claim 3, wherein correcting the position of the obstacle comprises:

applying a first weight to the location difference of the building and a second weight to the location difference of the other building;

determining an average value of the position difference values to which the first weight and the second weight are applied; and

and re-determining the position of the obstacle by using the average value.

5. The method of claim 1, further comprising:

determining whether there is misalignment between the first information and the second information,

wherein the position of the obstacle is corrected if the misalignment is present.

6. The method of claim 5, wherein determining whether there is misalignment between the first information and the second information comprises:

determining whether the misalignment is present based on at least one of an area of a non-overlapping portion of a location between the first information and the second information, and a ratio of overlapping portion to the non-overlapping portion.

7. The method of claim 1, further comprising:

extracting height information of the building from the second information; and

including the altitude information in the environmental information.

8. The method of claim 1, further comprising:

performing a simulation for network design using the environment information.

9. The method of claim 1, further comprising:

transmitting the environment information to another device that performs a simulation for a network design using the environment information.

10. An apparatus for generating environment information in a wireless communication system, the apparatus comprising:

a transceiver for transmitting and receiving signals; and

at least one processor coupled with the transceiver,

wherein the at least one processor determines a position difference value between the shot-based first information and the measurement-based second information of the building, and corrects the position of the obstacle determined using the first information using the position difference value.

11. The apparatus of claim 10, wherein the at least one processor determines the obstruction based on at least one of a distance from the building and a signal path between a receiver located in the building and a base station.

12. The apparatus of claim 10, wherein the at least one processor determines a position difference between the first information and the second information of another building,

wherein the position of the obstacle is corrected based on the position difference of the building and the position difference of the other building.

13. The apparatus of claim 10, wherein the at least one processor determines whether there is misalignment between the first information and the second information,

wherein the position of the obstacle is corrected if the misalignment is present.

14. The apparatus of claim 10, wherein the at least one processor extracts altitude information of the building from the second information and includes the altitude information in the environmental information.

15. The apparatus of claim 10, wherein the at least one processor performs a simulation for network design using the environment information.

Technical Field

The present disclosure relates generally to a wireless communication system, and more particularly, to an apparatus and method for generating environment information for network design in a wireless communication system.

Background

In order to meet the wireless data service demand, which has increased after commercialization of the 4 th generation (4G) communication system, an advanced 5 th generation (5G) communication system or a pre-5G communication system is being developed in an effort. Accordingly, the 5G communication system or the pre-5G communication system is referred to as a super 4G network communication system or a Long Term Evolution (LTE) system.

To achieve high data rates, it is considered to implement a 5G communication system in an extremely high frequency (mmWave) band (e.g., 60GHz band). In order to mitigate path loss of radio waves and extend propagation distance of radio waves in a very high frequency band, a 5G communication system is discussing beamforming, massive Multiple Input Multiple Output (MIMO), full-dimensional (FD) -MIMO, array antenna, analog beamforming, and massive antenna technology.

Furthermore, to enhance the network performance of the system, the 5G communication system is developing technologies such as evolved small cells, advanced small cells, cloud Radio Access Networks (RANs), ultra-dense networks, device-to-device (D2D) communication, wireless backhaul, mobile networks, cooperative communication, coordinated multipoint (CoMP), and reception interference cancellation.

In addition, in the 5G system, hybrid frequency shift keying and quadrature amplitude modulation (FQAM) and Sliding Window Superposition Coding (SWSC) are being developed as Advanced Coding Modulation (ACM) schemes, and filter bank multi-carrier (FBMC), non-orthogonal multiple access (NOMA), and Sparse Code Multiple Access (SCMA) are being developed as advanced access technologies.

It is expected that 5G systems will use higher frequency bands than conventional cellular systems (e.g., LTE). Due to the use of higher frequency bands, the cell coverage of 5G systems becomes smaller and the signal attenuation is greater compared to conventional cellular systems. Therefore, if the service availability is accurately predicted in advance according to the location of the user, a better service can be provided.

Disclosure of Invention

Technical problem

Based on the above discussion, the present disclosure provides an apparatus and method for more accurately generating environment information for network design in a wireless communication system.

Further, the present disclosure provides an apparatus and method for generating environment information that more accurately indicates the location of obstacles in a wireless communication system.

Further, the present disclosure provides an apparatus and method for correcting a position value extracted from information of an image type using measured information in a wireless communication system.

Solution to the problem

According to various embodiments of the present disclosure, a method for generating environment information in a wireless system may include: determining a position difference between the first shot-based information and the second measurement-based information of the building; and correcting the position of the obstacle determined using the first information using the position difference value.

According to various embodiments of the present disclosure, an apparatus for generating environment information in a wireless communication system may include a transceiver for transmitting and receiving signals and at least one processor connected with the transceiver, wherein the at least one processor may: a position difference value between the shot-based first information and the measurement-based second information of the building is determined, and the position of the obstacle determined using the first information is corrected using the position difference value.

The invention has the advantages of

According to the apparatus and method of various embodiments of the present disclosure, more accurate environmental information may be provided by correcting a position value extracted from information of an image type using measured information.

Effects obtainable from the present disclosure are not limited to the above-described effects, and other effects not mentioned may be clearly understood by those skilled in the art of the present disclosure through the following description.

Drawings

Fig. 1 illustrates a system according to various embodiments of the present disclosure.

Fig. 2 illustrates an example of image information and measurement information in a wireless system according to various embodiments of the present disclosure.

Fig. 3 illustrates a configuration of a server for generating environment information in a wireless communication system according to various embodiments of the present disclosure.

Fig. 4 illustrates a flow diagram of a server generating environmental information in a wireless communication system, according to various embodiments of the present disclosure.

Fig. 5 illustrates a more detailed flow diagram of a server generating environmental information in a wireless communication system, according to various embodiments of the present disclosure.

Fig. 6a illustrates an example of obstacle determination in a process for compensating for a position of an obstacle in a wireless communication system, according to various embodiments of the present disclosure.

Fig. 6b illustrates an example of determining a position difference value in a process for compensating for a position of an obstacle in a wireless communication system according to various embodiments of the present disclosure.

Fig. 6c illustrates an example of determining a relative position of an obstacle in a process for compensating for the position of the obstacle in a wireless communication system, according to various embodiments of the present disclosure.

Fig. 6d illustrates an example of correcting a position of an obstacle in a process for compensating for the position of the obstacle in a wireless communication system, according to various embodiments of the present disclosure.

Fig. 7 illustrates a flow diagram for a server determining a correction target obstacle in a wireless communication system, in accordance with various embodiments of the present disclosure.

Fig. 8 illustrates another flow diagram for a server determining a correction target obstacle in a wireless communication system, in accordance with various embodiments of the present disclosure.

Fig. 9 illustrates a more detailed flow diagram of a server generating environmental information in a wireless communication system, according to various embodiments of the present disclosure.

Fig. 10 illustrates a flow diagram of a server correcting a location of an obstacle by applying weights in a wireless communication system, according to various embodiments of the present disclosure.

Fig. 11 illustrates an example of an obstacle adjacent to multiple buildings in a wireless communication system, according to various embodiments of the present disclosure.

Fig. 12 illustrates a flow diagram for a server to add altitude information to environmental information in a wireless communication system, according to various embodiments of the present disclosure.

Fig. 13 illustrates an example of a distance difference from an obstacle according to altitude in a wireless communication system according to various embodiments of the present disclosure.

Fig. 14 illustrates a flow diagram for performing a simulation with context information in a wireless communication system, according to various embodiments of the disclosure.

Detailed Description

The terminology used in the present disclosure is used to describe particular embodiments and is not intended to limit the scope of other embodiments. The singular forms may include the plural forms unless specifically stated otherwise. All terms (including technical and scientific terms) used herein may have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. Among the terms used in the present disclosure, terms defined in a general dictionary may be interpreted as having the same or similar meaning as the context of the related art, and should not be interpreted ideally or as an excessively formal meaning unless explicitly defined in the present disclosure. In some cases, even terms defined by the present disclosure should not be construed to exclude embodiments of the present disclosure.

In various embodiments of the present disclosure to be described below, a hardware method will be described as an example. However, since various embodiments of the present disclosure include techniques that use both hardware and software, various embodiments of the present disclosure do not preclude software-based approaches.

Hereinafter, the present disclosure relates to an apparatus and method for generating environment information for network design in a wireless communication system. Specifically, the present disclosure sets forth a technique of providing more accurate environmental information by correcting a position value extracted from information of an image type using measured information in a wireless communication system.

Terms indicating environmental information (e.g., image information, measurement information), terms indicating environmental elements (e.g., buildings, obstacles), terms indicating service-related status (e.g., availability), terms indicating control information, terms indicating network entities (e.g., servers), and terms indicating components of devices, which are used in the following description, are for the purpose of explanation. Accordingly, the present disclosure is not limited to the terms to be described, and other terms having technically the same meaning may be used.

Furthermore, the present disclosure describes various embodiments using terms used in some communication standards (e.g., the third generation partnership project (3GPP)), which terms are merely exemplary illustrations. Various embodiments of the present disclosure may be readily modified and applied to other communication systems.

Fig. 1 illustrates a system according to various embodiments of the present disclosure. Fig. 1 shows a first server 110, a second server 120 and a third server 130 as entities related to generating context information. Each of the first server 110, the second server 120, and the third server 130 may be configured by installing a program for performing a corresponding function in a general-purpose server, or may be a device specifically designed to perform the corresponding function.

The first server 110 generates the context information. The first server 110 may be operated by a service provider or system operator. In order to generate the environment information, the first server 110 may obtain necessary information from the second server 120 or the third server 130. For example, the necessary information is information about an area for generating environmental information, and may include information about a terrain, a building, a road, a facility, a tree, and the like.

The second server 120 stores the observation information generated by photographing and provides it to the first server 110. The observation information stored in the second server 120 may be generated by using a high-altitude camera of a drone or an airplane. For example, the viewing information may be in the form of an image or video. For purposes of description, the information provided by the second server 120 may be referred to as "image information," "satellite view," "first information," and so forth.

The third server 130 stores the information generated by the measurement and provides it to the first server 110. For example, the measurements may be performed based on images measured at different angles relative to the same object, based on reflected waves of light (e.g., light detection and ranging (LiDAR)), or based on electromagnetic signals. Thus, the information stored in the third server 130 has a relatively higher accuracy than the information stored in the second server. However, the information stored in the third server 130 is less of a type of target than the information stored in the second server 120. For example, the third server 130 may include only information about all objects (e.g., buildings) except for some targets (e.g., obstacles such as trees and facilities). For the purpose of description, the information provided from the third server 130 may be referred to as "measurement information", "building map", "second information", and the like. In various embodiments, the measurement information is shown to include building information but not obstacle information.

Furthermore, although not shown in fig. 1, the system may also include a fourth server for network design and availability determination. The fourth server may receive the environment information from the first server 110, determine service availability at a specific location using the environment information, and perform network design (e.g., determine a base station installation location, etc.).

It may be important to obtain the exact locations of buildings and obstacles to improve the accuracy of the network design. That is, if the exact location of the obstacle is not obtained, the reliability of the network design may be degraded. Here, the building is where user equipment (e.g., Customer Premises Equipment (CPE), User Equipment (UE), a terminal, etc.) may be located, and the obstacle represents an object that impedes transmission of radio signals between the user equipment and the base station.

Fig. 2 illustrates an example of image information and measurement information in a wireless system according to various embodiments of the present disclosure. Fig. 2 shows measurement information superimposed on image information. Referring to fig. 2, the locations and sizes of the buildings 210-1 through 210-5 identified by the image information (e.g., information stored in the second server 120) are different from the locations 220-1 through 220-5 determined by the measurement information (e.g., information stored in the third server 120). That is, since the image information is based on photographing, there may be some error in the image information. Thus, there may be a misalignment between the position of the specific building determined from the image information and the position of the specific building determined from the measurement information. Further, the error of the position of the obstacle 230-1 or the obstacle 230-2 may be larger due to the error variation of each building. Accordingly, the position of the obstacle 230-1 or the obstacle 230-2 (e.g., a tree) determined by the image information may not be accurate based on the measurement information.

The measurement information determined in a more accurate manner than the image information has a relatively high accuracy. Therefore, if the position of an obstacle determined by image information is accurately corrected based on important points in the radio wave reception characteristics (e.g., building center, window, wall, etc.), it is possible to achieve more efficient network design. Accordingly, the present disclosure describes various embodiments for correcting the position of an obstacle determined using image information using measurement information.

Fig. 3 illustrates a configuration of a server in a wireless communication system according to various embodiments of the present disclosure. The configuration shown in fig. 3 may be understood as a configuration of the first server 110. Terms such as "portion" or "processor" used hereinafter mean a unit for processing at least one function or operation, and may be implemented using hardware, software, or a combination of hardware and software.

Referring to fig. 3, the server includes a communication unit 310, a storage unit 320, and a control unit 330.

The communication unit 310 provides an interface for communicating with other entities in the network (e.g., the server 120 or 130). That is, the communication unit 310 converts a bit string transmitted from the server to another entity into a physical signal, and converts a physical signal received from another entity into a bit string. That is, the communication unit 310 may transmit and receive signals. Thus, the communication unit 310 may be referred to as a modem, a transmitter, a receiver, or a transceiver.

The storage unit 320 stores basic programs for operating a server, application programs, and data such as setting information. In particular, the storage unit 320 may store information about a terrain, a building, an obstacle, and the like, obtained from another server (e.g., the server 120 or 130). For example, the information obtained from another server may include image information and measurement information. The storage unit 320 provides stored data according to a request of the control unit 330.

The control unit 330 controls the general operation of the server. For example, the control unit 330 transmits and receives signals through the communication unit 310. In addition, the control unit 330 records data in the storage unit 320 and reads data from the storage unit 320. To this end, the control unit 330 may include at least one processor. According to various embodiments, the control unit 330 generates the environment information based on the image information and the measurement information. With this, the control unit 330 can correct the position of the obstacle. For example, the control unit 330 may control the server to perform operations according to various embodiments to be explained.

Fig. 4 is a flow diagram illustrating a server generating environmental information in a wireless communication system, according to various embodiments of the present disclosure. Fig. 4 illustrates a method of operation of the first server 110.

Referring to fig. 4, the server determines a position difference value between image information and measurement information of a building in step 401. That is, even for the same building, the position determined based on the image information and the position determined based on the measurement information may be different. At this time, in order to determine the position difference, an operation of determining a reference point of the building may be performed first.

In step 403, the server corrects the position of the obstacle determined using the image information by using the position difference value. For example, the server may correct the position of the obstacle to match the measurement information. That is, the server may correct the position of the obstacle by moving the position of the obstacle by the position difference.

Fig. 5 illustrates a more detailed flow diagram of a server generating environmental information in a wireless communication system, according to various embodiments of the present disclosure. Fig. 5 illustrates an operation method of the first server 110.

Referring to fig. 5, in step 501, the server determines an obstacle to be corrected (hereinafter referred to as a "correction target obstacle") using image information. For example, the server may determine a correction target obstacle based on a building in which a wireless receiver (e.g., CPE, UE, etc.) may be located. Referring to fig. 6a, the server may identify the obstacle 520, the obstacle 522, and the obstacle 524 as correction target obstacles based on the building position 510 using the image information. The building location 510 of fig. 6a is the location and area of the building determined using the image information and represents the outline of the building. Here, the correction target obstacle is an object that affects the radio wave reception characteristics, and is an object that corrects the position based on the image information based on the measurement information to improve the accuracy of the network design simulation.

In step 503, the server determines the position difference in the image information and the measurement information of the same building. According to an embodiment, the server determines a reference point for determining a position difference value of the building, compares the reference points of the same building determined using the image information and the measurement information, respectively, and thereby determines a position difference value between the image information and the measurement information of the same building. For example, referring to fig. 6b, the server determines the reference point 611 of the building based on the image information and determines the reference point 631 of the building based on the same measurement information as the building location 610 based on the image information. With this, the reference point 611 based on the image information and the reference point 631 based on the measurement information are determined to be located at the same relative position of the same building, thereby determining a position difference value in the image information and the measurement information of the same building. The server determines a position difference in the image information and the measurement information of the same building by comparing the positions of the reference point 611 based on the image information and the reference point 631 based on the measurement information.

In operation 505, the server determines a relative position of the correction target obstacle according to the position of the building based on the image information. According to the embodiment, the server may determine the relative position of the correction target obstacle identified in step 501 from the position of the building based on the image information. For example, referring to fig. 6c, the server determines the relative positions of the correction target obstacles 620, 622, and 624 identified in step 601 based on a reference point 611, which is the center of the building position 610 based on the image information. In an embodiment, the relative positions of the correction target obstacles 620, 622, and 624 may be relatively expressed in angle and distance according to the reference point 611 of the building based on the image information.

In operation 507, the server corrects the position of the correction target obstacle using the position difference value. According to the embodiment, the server corrects the position of the correction target obstacle by moving the position of the correction target obstacle by the position difference value in the image information and the measurement information of the same building. The purpose of correcting the position of the correction target obstacle based on the image information is to improve the accuracy of the network design simulation. For example, referring to fig. 6d, the server corrects the positions of the correction target obstacles 620, 622, and 624 according to the position difference value corresponding to the difference between the reference point 611 based on the image information and the reference point 631 based on the measurement information. In an embodiment, the positions of the correction target obstacles 620, 622, and 624 may be relatively represented in angle and distance according to the reference point 631 of the building based on the measurement information.

In the embodiment described with reference to fig. 5 and 6 a-6 d, reference point 511 and reference point 531 are shown near the center of the respective building location. However, according to various embodiments, the reference point may be determined differently. Here, for example, the reference point may be determined in consideration of radio wave reception characteristics. Specifically, the reference point of the building may be determined as a window, entrance, user room, etc. of the building in consideration of the frequency of occurrence of the user device. In addition, in consideration of the location of the base station, the reference point of the building may be determined as the surface of the wall of the building closest to the location of the base station. That is, the reference point of the building may be determined in consideration of radio wave reception characteristics including the appearance frequency of the user equipment and the location of the base station. Furthermore, according to another embodiment, in fig. 6a to 6d, the reference point is shown as a single point, but the reference point may be determined as a line, a surface, or the like instead of a point.

In the embodiment described with reference to fig. 5 and fig. 6a to 6d, a correction target obstacle is determined. Here, the correction target obstacle may be determined in various ways. An embodiment for determining a correction target obstacle is described below with reference to fig. 7 and 8.

Fig. 7 illustrates a flow diagram for a server determining a correction target obstacle in a wireless communication system, according to various embodiments of the present disclosure. Fig. 7 illustrates a method of operation of the first server 110.

Referring to fig. 7, the server determines a reference point of a building based on image information in step 701. For example, a reference point of a building may be determined as a window, entrance, user room, etc. of the building, taking into account statistical information (e.g., frequency of occurrence, probability of occurrence, etc.) of the user. As another example, a reference point of a building may be determined as a surface of a wall of the building closest to the location of the base station, taking into account the location of the base station. That is, the reference point of the building may be determined by considering statistical information of the user and radio wave reception characteristics including the location of the base station.

In operation 703, the server searches for an obstacle within a certain distance based on a reference point of the building. Obstacles (including radio receivers) within a certain distance from a reference point of a building may severely interfere with radio reception. That is, obstacles adjacent to a building may cause signal blockage and interference to radio receivers located in the building. Conversely, obstacles located outside a certain distance from the building in which the radio receiver is located may have a relatively small impact on the radio reception. Thus, the server searches for at least one obstacle within a certain distance based on the reference point of the building. Here, the specific distance may be differently set according to various factors (e.g., frequency bands, requirements of network operators, service characteristics of respective areas).

In operation 705, the server determines the detected obstacle as a correction target obstacle. Specifically, the server determines an obstacle within a certain distance as a correction target obstacle from the reference point of the building based on the image information retrieved in step 703.

Fig. 8 illustrates another flow diagram for a server determining a correction target obstacle in a wireless communication system, in accordance with various embodiments of the present disclosure. Fig. 8 illustrates a method of operation of the first server 110.

Referring to fig. 8, the server determines a reference point of a building based on image information in step 801. For example, a reference point of a building may be determined as a window, entrance, user room, etc. of the building, taking into account statistical information (e.g., frequency of occurrence, probability of occurrence, etc.) of the user. As another example, a reference point of a building may be determined as a surface of a wall of the building closest to the location of the base station, taking into account the location of the base station. That is, the reference point of the building may be determined by considering statistical information of the user and radio wave reception characteristics including the location of the base station.

In step 803, the server searches for an obstacle located on the desired signal path. Here, if a signal transmitted from a base station is transmitted to a radio receiver, a desired signal path means a signal path in which a corresponding signal is desired to propagate. The server may determine a desired signal path by considering a location of a base station transmitting a signal, a location of a radio wave receiver in a building, a line-of-sight (LoS) path between the base station and the radio wave receiver, and a reflected wave path.

In operation 805, the server determines the detected obstacle as a correction target obstacle. Specifically, the server determines an obstacle within a certain distance as a correction target obstacle from the retrieved reference point of the building based on the image information.

The operation of correcting the target obstacle for identifying the obstacle position correction server in fig. 7 and 8 may be performed independently or simultaneously. If the operations of fig. 7 and 8 are simultaneously performed, the server may search for an obstacle within a preset distance from the reference point of the building based on the image information and simultaneously search for an obstacle located on the desired signal path, thereby recognizing an obstacle located on the desired signal path within a certain distance from the reference point of the building as a correction target obstacle.

Fig. 9 illustrates a more detailed flow diagram of a server generating environmental information in a wireless communication system, according to various embodiments of the present disclosure. Fig. 9 illustrates a method of operation of a server.

Referring to fig. 9, the server obtains image information and measurement information in step 901. For example, the server may receive measurement information and image information from at least one other server (e.g., second server 120, third server 130).

In step 903, the server determines a correction target obstacle in the image information. Specifically, the server identifies a correction target obstacle based on the building in which the radio receiver is located. For example, the server may determine the correction target obstacle by considering the distance to the building or whether an obstacle exists on the signal path.

In step 905, the server determines whether there is misalignment between the image information and the measurement information. Specifically, the server determines whether a building including the radio wave receiver is misaligned in the image information and the measurement information. For example, the criterion of misalignment may be determined based on the area of an overlapping portion, the ratio of an overlapping portion to a non-overlapping portion, and the like of positions in image information and measurement information of the same building. According to an embodiment, the criterion for determining the misalignment may be defined as the portion of the image-based building that exceeds the outside of the outline of the building based on the measurement information by more than a threshold value. Here, the threshold is a reference value used to determine whether to proceed with the position correction process of the identified correction target obstacle, and may be configured differently according to various embodiments.

If a misalignment is determined, the server determines a reference point for the building at step 907. Specifically, the server determines a correction reference point in the image information and the measurement information of the same building. Thereby, the reference point based on the image information and the reference point based on the measurement information are determined at the same relative position of the same building. Here, the reference point is determined by considering the radio wave reception characteristics.

In operation 909, the server determines a position difference value in the image information and the measurement information of the same building. Specifically, the server determines the position difference value in the image information and the measurement information of the same building by comparing the reference points in the image information and the measurement information of the same building. That is, the server may determine the position difference in the image information and the measurement information of the same building by comparing the positions of the reference point of the building based on the image information and the reference point of the building based on the measurement information.

In step 911, the server determines whether the position difference exceeds a threshold. In detail, the server determines whether the difference in the positions of the image information and the measurement information of the same building determined in step 809 exceeds a threshold value by comparing the position of the reference point of the building based on the image information and the position of the reference point of the building based on the measurement information. Even if misalignment occurs between the positions in the image information and the measurement information of the same building, the difference in the positions in the image information and the measurement information of the same building may be smaller than the threshold value depending on the position of the reference point of the building. For example, if a building based on image information has an error of being rotated by a certain angle based on a reference point, as compared to a building based on measurement information, a position difference value determined using the reference point may be less than a threshold value.

If the position difference value exceeds the threshold value, the server determines the relative position of the correction target obstacle from the correction reference point based on the image information in step 913. Specifically, the server determines the relative position of the correction target obstacle identified in step 901 from the correction reference point based on the image information determined in step 907.

In operation 915, the server corrects the position of the correction target obstacle using the position difference value. Specifically, the server corrects the position of the correction target obstacle by moving the position of the correction target obstacle by a position difference value in the image information and the measurement information of the same building.

According to various embodiments as described above, the position of the obstacle determined based on the image information can be corrected using the measurement information. With this, if one obstacle belongs to a plurality of buildings, the position of the obstacle can be corrected using the position difference value of the one building. However, if one obstacle affects a plurality of buildings, a plurality of position difference values may be used for correction. At this time, the position of the obstacle varies depending on how the plurality of position differences are applied. According to an embodiment, the position of the obstacle may be determined based on an average of the plurality of position differences. According to another embodiment, the importance of the building may be further considered. A process of correcting the position of the obstacle in consideration of the importance of the building is described below with reference to fig. 10.

Fig. 10 illustrates a flow chart of a server correcting a location of an obstacle by applying weights in a wireless communication system according to various embodiments of the present disclosure. Fig. 10 illustrates a method of operation of the first server 110.

Referring to fig. 10, the server determines the relative position of the correction target obstacle based on each of a plurality of buildings according to the image information in step 1001. In detail, the server determines the relative position of the correction target obstacle recognized based on the plurality of buildings based on the image information. For example, referring to fig. 11, the server determines the relative position of correction target obstacle 1130 based on the reference points of building 1100, building 1110, and building 1120 from the image information. In an embodiment, based on the image information, the relative position of correction target obstacle 1130 may be relatively represented in angle and distance based on the reference points of building 1100, building 1110, and building 1120.

In step 1003, the server applies weights to the positional difference values of the plurality of buildings in the image information and the measurement information. Specifically, the server may determine position differences of the plurality of buildings in the image information and the measurement information by comparing positions of the reference points in the image information and the measurement information of each of the plurality of buildings, and apply different weights to the position differences. Here, the weight of each of the plurality of buildings may be determined by considering at least one of the number of users in each building, the location of the base station, and the influence of the obstacle. In detail, the server may apply a greater weight to the position difference values of the respective buildings having a large number of building users. In addition, the server may apply a greater weight to the location difference of the respective buildings near the base station. In addition, the server may apply a greater weight to the position difference value of the corresponding building, which has a greater influence on the radio wave reception. By applying different weights to the position difference values of the plurality of buildings, respectively, the server can change the degree of reflecting the position difference values of the plurality of buildings in the correction process using the positions of the obstacles of the plurality of buildings. Therefore, the server can correct the position of the correction target obstacle by considering the influence of the obstacle on the radio wave environment of each building.

In step 1005, the server corrects the position of the correction target obstacle by using the weighted position difference values of the buildings, respectively. For example, the server may calculate an average value of the position difference values of the weighted buildings, and correct the position of the correction target obstacle by moving the position of the correction target obstacle by the calculated average value.

Fig. 12 illustrates a flow diagram for a server to add altitude information to environmental information in a wireless communication system, according to various embodiments of the present disclosure. Fig. 12 illustrates a method of operation of the first server 110.

Referring to fig. 12, the server obtains height information of a building in step 1201. For example, the server may extract height information from the measurement information. For example, referring to fig. 13, the server may obtain height information for building 1300 and building 1310.

In operation 1203, the server generates environment information including the altitude value using the altitude information. Floors with different heights can be distinguished if the height information is included in the location of the building. Because the relative positions of obstacles (e.g., obstacle 1320) are different with respect to floors of different heights, more accurate simulations may be made in view of the heights. Thus, for a more accurate simulation, the server may generate environmental information having three-dimensional (e.g., longitude, latitude, altitude) location information by adding altitude information to two-dimensional (e.g., longitude and latitude) location information.

According to various embodiments as described above, generating the environmental information may include correcting a position of the obstacle. According to an embodiment, the environmental information generated as described above may be used for simulation of a network design. An example of a simulation using environmental information is described below with reference to fig. 14.

Fig. 14 illustrates a flow diagram for performing simulation with context information in a wireless communication system, in accordance with various embodiments of the present disclosure. Fig. 14 illustrates a method of operation of the first server 110. However, the process described below may be performed by a separate server different from the first server 110.

Referring to fig. 14, the server generates environment information in step 1401. For example, the server may utilize the image information to determine the location of buildings and obstacles, and may utilize the measurement information to modify the location of buildings and obstacles. In detail, the server may generate the environment information according to the various embodiments described above.

In step 1403, the server performs the simulation using the context information. Simulations may be performed by considering various items of direction, reflection, absorption and transmission of signals, and path loss estimation. For example, the server may perform network design simulation of a wireless channel between the base station and the user equipment by using arrangement information of buildings and obstacle information such as trees. The server may determine service availability based on at least one index associated with the signal obtained from the network design simulation. For example, the server may determine service availability by comparing the quality value and rate of change of the signal to a threshold. Further, the server may suggest a new base station installation location based on the simulation result, or determine at least one type of information for improving communication quality.

The method according to the embodiments described in the claims or the specification of the present disclosure may be implemented in software, hardware, or a combination of hardware and software.

For software, a computer-readable storage medium for storing one or more programs (software modules) may be provided. One or more programs stored in the computer-readable storage medium may be configured to be executed by one or more processors of the electronic device. The one or more programs may include instructions for controlling an electronic device to perform a method according to embodiments described in the claims or specification of the present disclosure.

Such programs (software modules, software) may be stored in random access memory, non-volatile memory including flash memory, Read Only Memory (ROM), electrically erasable programmable ROM (eeprom), magneto-optical disk storage, Compact Disc (CD) -ROM, Digital Versatile Disc (DVD) or other optical storage devices, and magnetic tape. Alternatively, the program may be stored in a memory incorporated in a part or all of those recording media. Multiple memories may be provided.

In addition, the program may be stored in a connectable storage device accessible through a communication network such as the internet, an intranet, a Local Area Network (LAN), a wide area network (WLAN), or a Storage Area Network (SAN), or through a communication network combining these networks. The storage device may access the electronic device through an external port. A separate storage device may access the device through a communication network.

In certain embodiments of the present disclosure, elements included in the present disclosure are represented in singular or plural forms. However, for convenience of explanation, the singular or plural expressions are appropriately selected according to the proposed cases, and the present disclosure is not limited to a single element or a plurality of elements. Elements expressed in various forms may be configured as a single element, and elements expressed in the singular form may be configured as a plurality of elements.

Meanwhile, although specific embodiments have been described in the description of the present disclosure, it should be noted that various changes may be made therein without departing from the scope of the present disclosure. Accordingly, the scope of the present disclosure is not to be limited or limited by the described embodiments, and is not to be limited solely by the scope of the following claims and their equivalents.