CN108834169B - Method and device for determining coverage capability - Google Patents
Method and device for determining coverage capability Download PDFInfo
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- CN108834169B CN108834169B CN201810725524.5A CN201810725524A CN108834169B CN 108834169 B CN108834169 B CN 108834169B CN 201810725524 A CN201810725524 A CN 201810725524A CN 108834169 B CN108834169 B CN 108834169B
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Abstract
The application provides a method and a device for determining coverage capability, relates to the field of communication, and can improve the accuracy of calculating the coverage capability. The method comprises the following steps: respectively determining first power received by the terminal from a first system in each sub-area of a preset area, and respectively determining second power received by the terminal from a second system in each sub-area of the preset area; and respectively determining the coverage capability of the first system and the coverage capability of the second system in the preset area according to the first power of the terminal in each sub-area of the preset area and the second power of the terminal in each sub-area of the preset area.
Description
Technical Field
The present application relates to the field of communications, and in particular, to a method and an apparatus for determining a coverage capability.
Background
The mobile communication technology has evolved continuously to develop multi-generation communication systems. Currently, operators can operate communication systems of different standards simultaneously. For example, a certain operator may simultaneously operate a Global System for Mobile Communication (GSM) System, a Wideband Code Division Multiple Access (WCDMA) System, and a Long Term Evolution (LTE) System.
In one aspect, because different technologies are used for communication systems of different systems, and there are differences in the locations of deployed base stations, the orientations of deployed antennas, and the like, the coverage capabilities of the communication systems of different systems are different. On the other hand, when an operator operates systems of different standards, the costs of network operation and maintenance are high. For the purpose of lower cost, operators currently consider to reduce frequency resources of legacy communication systems to be released, that is, reduce bandwidth configurations used by legacy communication systems, and gradually end the operation of the legacy communication systems, so as to reduce the released frequency resources for the communication systems of new standards.
Therefore, in order to coordinate systems of different systems and provide seamless network services for users, the coverage capabilities of the systems of various systems need to be accurately analyzed, and an area with a lack of coverage capability of a certain communication system needs to be found, so that reference is provided for the next network construction and network optimization work. Meanwhile, in the process of reducing the frequency and quitting the network of the old-made communication system, the coverage capability of various systems also needs to be analyzed to ensure that the new-made communication system can provide enough coverage capability in the coverage area of the old-made communication system and ensure that the service experience of a user is not reduced.
At present, the way of analyzing the coverage capability of various systems mainly depends on extracting Key Performance Indicators (KPIs) in a network management system and combining the KPIs with field tests. For example, when the coordination capability between different systems is analyzed, the success rate of the interoperation between different systems is analyzed, and it is found that the success rate of switching from the fourth generation (4G) communication system to the 3G system is low, corresponding 3G and 4G cells can be called from the network management system, and then a tester goes to the corresponding 3G and 4G cells to perform field test, so as to search a specific switching failure area. Therefore, in the existing coverage capacity analysis method, the field test needs to be carried out by using the testers, so that when the geographic area range corresponding to the cell is large, the workload of the testers is increased, and the test process is complicated.
Disclosure of Invention
The application provides a coverage capacity determining method and device, which are used for solving the problem that the testing process is complicated in a KPI (Key performance indicator) combined field testing mode.
The following technical scheme is adopted for achieving the purpose:
in a first aspect, an embodiment of the present application provides a coverage capability determining method, which may include: the network equipment respectively determines first power received by the terminal from a first system in each sub-area of a preset area, and respectively determines second power received by the terminal from a second system in each sub-area of the preset area; and respectively determining the coverage capability of the first system and the coverage capability of the second system in the preset area according to the first power of the terminal in each sub-area of the preset area and the second power of the terminal in each sub-area of the preset area.
In a second aspect, the present application provides a coverage capability determining apparatus (which may be a network device shown in fig. 1, for example), including: and a processing unit.
The processing unit is used for respectively determining first power received by the terminal from the first system in each sub-area in the preset area and respectively determining second power received by the terminal from the second system in each sub-area in the preset area; and respectively determining the coverage capability of the first system and the coverage capability of the second system in the preset area according to the first power of the terminal in each sub-area of the preset area and the second power of the terminal in each sub-area of the preset area.
In a third aspect, the present application provides a coverage capability determining apparatus, comprising: a processor, a transceiver, and a memory. Wherein the memory is used to store one or more programs. The one or more programs include computer executable instructions which, when executed by the apparatus, cause the apparatus to perform the coverage capability determination method of the first aspect and any of its various alternative implementations.
In a fourth aspect, the present application provides a computer-readable storage medium, in which instructions are stored, and when the coverage capability determining apparatus executes the instructions, the apparatus executes the coverage capability determining method described in any one of the first aspect and various optional implementations thereof.
According to the coverage capacity determining method, the first power received by the terminal from the first system in each sub-area of the preset area and the second power received by the terminal from the second system are respectively determined, so that when the first power and the second power meet preset conditions, the coverage capacity of the first system in the preset area can be determined to be larger than that of the second system. On one hand, the field test link is reduced, the workload of personnel is reduced, and on the other hand, from the actual received power angle of the terminal, the actual coverage capability of the base station capable of providing the coverage range can be obtained, so that the calculation result is more accurate.
Drawings
Fig. 1 is a schematic diagram of a communication system according to an embodiment of the present application;
fig. 2 is a schematic flowchart of a coverage capability determining method according to an embodiment of the present application;
fig. 3 is a schematic diagram of a principle of dividing sub-regions according to an embodiment of the present application;
FIG. 4 is a pattern of antenna levels provided by embodiments of the present application;
fig. 5 is a vertical plane pattern of the antenna provided by the embodiments of the present application;
fig. 6 is a first schematic structural diagram of a coverage capability determining apparatus according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a coverage capability determining apparatus according to an embodiment of the present application.
Detailed Description
The coverage capability determining method and apparatus provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone.
The terms "first" and "second" and the like in the description and drawings of the present application are used for distinguishing different objects or for distinguishing different processes for the same object, and are not used for describing a specific order of the objects.
Furthermore, the terms "including" and "having," and any variations thereof, as referred to in the description of the present application, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.
In the description of the present application, the meaning of "a plurality" means two or more unless otherwise specified.
The coverage capability determining method provided by the embodiment of the present application may be applied to the communication system shown in fig. 1, where the communication system includes a first system, a second system, and a network device. The first system may be a fifth generation (5G) mobile communication system, a 4G (e.g., Evolved Packet System (EPS) mobile communication system, a 3G mobile communication system, a 2G mobile communication system, or another actual mobile communication network, and the embodiment of the present application is not limited thereto.
The first system comprises first access network equipment (only one shown in fig. 1 by way of example) and a terminal, and the second system comprises second access network equipment and a terminal. Taking the first system as an example, the access network device may be a base station, for example. It should be noted that, when different communication systems are adopted, names of access network devices may be different, for example, in a 3G system, a base station is named nodeb (nb), in a 4G system, a base station is named eNB, in a 5G system, a base station is named gNB, and a name of an access network device does not form a limitation on the access network device itself.
The terminal may be a User Equipment (UE), such as: a cellular telephone, a cordless telephone, a Session Initiation Protocol (SIP) telephone, a smart phone, a Personal Digital Assistant (PDA), a laptop computer, a handheld communication device, a handheld computing device, and/or other devices for communicating over the communication system shown in fig. 1.
The network device can communicate with a first access network device, a second access network device and a terminal in a first system and a second system respectively through a network. In the embodiment of the present application, the network device is configured to import certain data and load a preset algorithm program to execute a process of calculating the coverage capability of the first system and the second system. When the first access network device and the second access network device are both base stations as shown in fig. 1, the imported data includes, but is not limited to, location information of each cell in the first system, antenna hanging height, azimuth angle, and downtilt angle information of each cell in the first system, location information of each cell in the second system, and antenna hanging height, azimuth angle, and downtilt angle information of each cell in the second system.
The network device may be any form of device having a computing processing function, and the embodiment of the present application does not limit a specific implementation form of the network device.
It can be understood that, a plurality of access network devices may be deployed in the first system and the second system, and a plurality of terminals may be provided with network services in the first system and the second system, respectively.
It should be noted that the first system and the second system each have respective coverage areas and respective coverage capabilities, so as to provide the corresponding network services to the users in the respective coverage areas.
An embodiment of the present application provides a coverage capability determining method, as shown in fig. 2, the method may include S201 to S203:
it should be noted that, in the embodiment of the present application, the comparison of the coverage capabilities of different systems is mainly performed with respect to the coverage capabilities of macro base stations in different systems, that is, the comparison of the outdoor environment coverage capabilities (considering part of the indoor environments without deploying the indoor subsystem). As the indoor environment is a closed environment, it is obvious that the coverage of the communication system with the indoor base station is generally stronger than that of the communication system without the indoor base station. Meanwhile, the two communication systems of the indoor base stations are deployed, so that the difference in the coverage capability of the indoor environment is not too large, and therefore, the comparison of the coverage capability of the indoor base stations is relatively simple to implement, and is not discussed too much herein, and the comparison of the coverage capability of the indoor base stations can be referred to in the prior art, which is described in a unified manner herein and is not described in detail below.
S201, the network equipment divides a preset area into a plurality of sub-areas.
Wherein each sub-area is a geographical grid. The preset area may be an area within a city range or a prefecture range, and may be specifically planned according to an actual application scenario, which is not limited in the embodiment of the present application.
Optionally, after dividing the sub-region, a central point of the sub-region is taken as a reference point for calculation, and a signal strength (received power) at the central point represents a signal strength (received power) of the sub-region. Therefore, the smaller the range of the sub-region, the closer the signal intensity of the entire sub-region is to the signal intensity of the center point of the sub-region, i.e., the higher the calculation accuracy. However, the smaller the sub-region is, the more the sub-regions included in the preset region are, and the larger the calculation amount of the method in the embodiment of the present application is, the size of each sub-region can be determined according to the actual application scenario, so that the influence of the calculation amount and the calculation accuracy is comprehensively considered.
For example, currently, the coverage capability of the first system and the second system in the preset area needs to be determined, and the preset area is divided into sub-areas as shown in fig. 3.
S202, respectively determining a first power received by the terminal from the first system in each sub-area of the preset area, and respectively determining a second power received by the terminal from the second system in each sub-area of the preset area.
S203 is described below by taking the example of determining the first power received from the first system in the first sub-area (the area where the black filled dots are located).
It should be noted that, in a system employing macro diversity technology (also referred to as a macro diversity system herein) and a system not employing macro diversity technology (also referred to as a non-macro diversity system herein), the terminal has a different communication mechanism from that of the first system in the first sub-area as shown in the figure. If the first system is a macro diversity system, the terminal can simultaneously communicate with two or more cells in the macro diversity system to enhance the received power of the signal and improve the quality of the received signal. The cells that can be connected to the terminal at the same time are in the active set, and the maximum number of cells that can be accommodated in the active set is determined by the network side parameter setting, and is generally set to 3. The network side schedules the number of cells in the active set of each terminal in a service state in real time according to a preset mechanism, and although the maximum number of the active set is 3, the number of the cells which can really enter the active set is determined by the preset conditions for entering and exiting the active set and the satisfaction degree of each cell. If the first system is a non-macro diversity system, the terminal communicates with only one cell at the same time in the non-macro diversity system. As such, when the first system is a macro diversity system or a non-macro diversity system, respectively, the terminal may receive the first power from the first system in the first sub-region differently.
The following describes a calculation method of the first power by using the first system as a macro diversity system and the first system as a non-macro diversity system as application scenarios:
application scenario 1: in the case that the first system is a non-macro diversity system, for example, for a first sub-area shown in fig. 3, the power received by the terminal from each cell of the first system in the first sub-area is respectively determined, and the first power received by the terminal from the first system in the first sub-area in the preset area is the power received by the terminal from a third cell of the first system in the first sub-area. The third cell is a cell which enables the receiving power of the terminal to be maximum in the first system.
It is noted that, in order to reduce the amount of calculation reasonably, it is optional that the power generated by all cells of the first system in the first sub-area is not necessarily calculated, but is calculated for cells having a distance to the first sub-area within a preset range. Here, the preset range may be set according to practical application conditions, for example, may be set to 400 meters according to empirical values, and the embodiment of the present application does not limit the specific numerical values of the preset range.
For example, referring to fig. 3, two cells of the first system, i.e., cell a and cell b, exist within a predetermined range centered on the first sub-area, and the power received by the terminal from cell a of the first system in the first sub-area is-79.8 dBm and the power received by the terminal from cell b of the first system in the first sub-area is-100 dBm. Since the power generated by the cell a in the first sub-area is greater than the power generated by the cell b in the first sub-area, the cell a is a cell in the first system that maximizes the reception power of the terminal, the cell a is taken as a third cell, and the power (-79.8dBm) received by the terminal from the cell a in the first sub-area is taken as the power received by the terminal from the first system in the first sub-area.
The following mainly describes a specific calculation method of the first power.
It can be understood that the first power received by the terminal from the first cell in the first sub-area is related to the power gain generated by the antenna of the first cell in the first sub-area, that is, the first power received by the terminal from the first cell in the first sub-area in the preset area is related to the power gain of the antenna of the first cell, the power gain of the antenna of the first cell is determined by the maximum transmission power of the antenna of the first cell and the power gain attenuation value of the antenna of the first cell in each direction, and the power gain attenuation value of the antenna of the first cell in each direction is determined by the directional pattern of the antenna of the first cell.
The above-mentioned methods for calculating the power gain of the antenna include the following two methods:
mode 1: and creating a three-dimensional data model of an antenna directional diagram, directly retrieving from the three-dimensional data model according to the geographical position of the terminal to obtain a power gain attenuation value of the antenna in each direction, and subtracting the power gain attenuation value of the antenna in each direction from the maximum transmitting power of the antenna to obtain a calculation result of the power gain of the antenna.
By creating a three-dimensional antenna data model and obtaining the power gain attenuation value of the antenna in each direction through the data model, more accurate antenna power gain can be obtained.
Mode 2: in order to reduce the calculation amount, only the power gain attenuation values of the antenna in a limited number of directions are calculated, and illustratively, the power gain attenuation values of the antenna in the horizontal plane direction and the power gain attenuation values of the antenna in the vertical plane direction are calculated, and the power gain attenuation values of the antenna in the two directions are respectively subtracted from the maximum transmitting power of the antenna, so that the actual power gain of the antenna is obtained.
Because the power gain attenuation values of the antenna in the horizontal plane and the vertical plane main lobe direction are related to the azimuth angle and the downward inclination angle of the antenna, and the maximum transmitting power of the antenna is combined, the influence of the cell antenna direction angle and the downward inclination angle on the receiving power of the position where the terminal is located can be fully considered, and the calculated receiving power of the terminal is more accurate.
In the following description, a mode of calculating the antenna power gain in the mode 2 is described in detail, with reference to fig. 4, where a directional pattern of the cell antenna in a horizontal plane is a directional pattern drawn in a top view, and it can be seen that, in the directional pattern of the horizontal plane of the cell antenna, the power gain of the cell antenna along the main lobe direction is the largest, and the power gain in the side lobe direction is smaller. Then, the power gain of the cell antenna in the horizontal plane main lobe direction can be obtained according to the information such as the included angle α between the terminal and the cell antenna main lobe maximum power gain direction. Illustratively, the direction coefficient can be queried according to the antenna directional diagram, and then the power gain attenuation value of the cell antenna in the horizontal plane main lobe direction can be calculated according to the direction coefficient. Here, for simplifying the description, other ways of determining the power gain of the antenna in the main lobe direction of the horizontal plane according to the directional pattern of the horizontal plane of the antenna may refer to the prior art, and the embodiments of the present application are not described again.
Referring to fig. 5, a vertical directional diagram of the cell antenna is shown, wherein the vertical directional diagram is a directional diagram drawn from a side view. At present, the position of the user holding the terminal is shown in fig. 5, at this time, the height of the user holding the terminal is H, the hanging height of the base station antenna is H, the downward inclination angle of the base station antenna is γ, the distance between the user and the base station is d, and the included angle between the terminal and the maximum power gain direction of the vertical plane is β. In the same manner as described above, the power gain of the cell antenna is maximized along the main lobe direction of the vertical plane in the vertical direction pattern of the cell antenna. Then, the power gain attenuation value of the cell antenna in the direction of the main lobe of the vertical plane can be obtained according to the information such as the included angle beta between the terminal and the direction of the maximum power gain of the main lobe of the cell antenna. For simplifying the description, the manner of determining the power gain of the antenna in the main lobe direction of the vertical plane according to the directional diagram of the vertical plane of the antenna may be referred to the above description of the horizontal plane directional diagram, and is not described herein again.
To make the above scheme easier to understand, the power gain generated by the antenna of the first cell in the first sub-region is calculated here by way of example. Assuming that the first cell is the cell a shown in fig. 3, the maximum transmission power of the transmitting antenna of the cell a is 18dBi, and the directivity pattern shown in fig. 4 and 5 is used to obtain the power gain attenuation value of the transmitting antenna of the first cell in the horizontal plane main lobe direction as 1dBi and the power gain attenuation value in the vertical plane main lobe direction as 1dBi, the actual power gain generated by the transmitting antenna of the first cell in the first sub-area is 18dBi-1dBi ═ 16 dBi.
In this embodiment, in calculating the first power received by the terminal from the first cell in the first sub-region, in addition to considering the power gain generated by the transmitting antenna of the first cell in the first sub-region, optionally, the first power received by the terminal from the first cell in the first sub-region in the preset region is further related to at least one of the power gain of the receiving antenna of the terminal, the transmitting power of a Radio Remote Unit (RRU), the feeder loss of a link between the terminal and the first cell, and the path loss of a link between the terminal and the first cell.
Optionally, the following formula is adopted to calculate the first power received by the terminal from the first cell in the first sub-region:
Pr＝Pt+Gt+Gr-Lt-Lr-Lbf
wherein, PrIs the first power, P, received by the terminaltIs the transmit power of the RRU, GtIs the power gain, G, of the transmitting antenna of the first cellrIs the power gain, L, of the receiving antenna of the terminaltIs the feeder loss, L, of the uplink between the terminal and the first cellrIs the feeder loss, L, of the downlink between the terminal and the first cellbfIs the path loss of the link between the terminal and the first cell.
It should be noted that, if a certain mobile communication system can use the pilot to calculate the transmission power of the RRU, the transmission power of the RRU is the transmission power of the pilot. The path loss can be calculated from existing empirical, deterministic, and semi-empirical semi-deterministic models. The method for determining the power gain of the receiving antenna of the terminal, the transmission power of the RRU, and the feeder loss can be referred to the prior art, and is not described herein again.
For example, the first cell is a cell a as shown in fig. 3, the power gain of the receiving antenna of the terminal is 3dBi, the transmission power of the RRU (i.e., the transmission power of the pilot) is 15.2dBm, the feeder loss is negligible and the path loss is 114dBm due to the remote deployment of the RRU, and the actual power gain of the transmitting antenna of the cell a is 16dBi by using the above method for calculating the power gain of the transmitting antenna of the cell a, so that the final receiving power of the terminal is 3+15.2+16-114 — 79.8 dBm.
Application scenario 2: in the case that the first system is a macro diversity system, for example, for the first sub-area shown in fig. 3, the power received by the terminal from each cell of the first system in the first sub-area is respectively determined, and the first power received by the terminal from the first system in the first sub-area in the preset area is the sum of the received powers of all cells of the first system satisfying the entry into the active set condition from the first system in the first sub-area. The fifth cell is a cell in the first system which generates the maximum receiving power in the first preset sub-region, the other cells which meet the condition of entering the active set are cells in the first system whose receiving power difference value with the fifth cell is smaller than a third threshold value, and the total number of all the cells which meet the condition of entering the active set, including the fifth cell, is further limited by the maximum number of the cells in the active set by the network side of the first system.
Similarly, the calculation may be performed for a cell of the first system whose distance from the first sub-area is within a preset range. For a detailed description, reference may be made to the related description of the application scenario 1, which is not described herein again.
For example, four cells of the first system, i.e., cell 1, cell 2, cell 3, and cell 4, exist within a preset range centered on the first sub-area, and the power received by the terminal from cell 1 of the first system in the first sub-area is calculated to be-60 dBm, the power received by the terminal from cell 2 of the first system in the first sub-area is calculated to be-63 dBm, the power received from cell 3 is calculated to be-90 dBm, and the power received from cell 4 is calculated to be-103 dBm. Assume that the maximum number of cells set in the active set of the first system is 3 cells (the number of cells in the active set can be set on the system side according to requirements), and the power difference between the cell with the strongest power generated in the first sub-area and the cell with the strongest power is within 6dB (the value can be set on the system side according to requirements) as a condition for the cell to enter the active set. Only cells producing the first three bits of power, cell 1, cell 2, cell 3, are considered. Then comparing the power of the 3 cells in the first sub-area, finding that the power generated by the cell 1 in the first sub-area is the largest, the power generated by the cell 2 in the first sub-area is 3dB weaker than the power generated by the cell 1 (satisfying the condition of less than 6 dB), and the power generated by the cell 3 in the first sub-area is 30dB weaker than the power generated by the cell 1 (not satisfying the condition of less than 6 dB), then it can be determined that the cell 1 and the cell 2 are cells that can enter the active set, wherein, in the cell 1, i.e. the fifth cell, the user terminal can combine the signals of the two cells by using the soft combining algorithm, that is, the sum of the powers generated by the two cells in the first sub-area is the power actually received by the terminal in the first sub-area, i.e., the power received by the terminal from the first system in the first sub-area is (-60) + (-63) — 58.2 dBm.
It is emphasized that, here, the addition of-60 dBm and-63 dBm is not a simple addition of-60 and-63 values, but involves a series of conversions, which are conventional in the art (e.g., using a soft combining algorithm), and the description of the embodiments of the present application is omitted here.
Similarly, in an application scenario where the first system is a non-macro-diversity system, the first power received by the terminal from the first cell of the first system in the first sub-region is related to at least one of a power gain generated by an antenna of the first cell in the first sub-region, a power gain of a receiving antenna of the terminal, a transmission power of a Radio Remote Unit (RRU), a feeder loss of a link between the terminal and the first cell, and a path loss of a link between the terminal and the first cell. In application scenario 2, the specific calculation manner of the first power received by the terminal from the first cell in the first sub-region may refer to the related description of application scenario 1, and is not described herein again.
Based on the same principle, for the second system, the power generated in the first sub-area when the second system is the macro diversity system or the non-macro diversity system can also be calculated respectively, and the detailed scheme can refer to the related description of the first system, and is not described herein again.
The above description mainly describes the calculation method for generating power in the first sub-area by the first system and the second system, respectively, and the power generated in the other sub-areas by the first system and the second system can be calculated by the same calculation method.
S203, determining the coverage capability of the first system and the coverage capability of the second system in the preset area according to the first power of the terminal in each sub-area of the preset area and the second power of the terminal in each sub-area of the preset area.
Specifically, the following 4 situations exist when the coverage capability of the first system and the second system in the preset area is different:
case 1: the coverage capacity of the first system in the preset area is larger than that of the second system.
Firstly, the sub-area with the coverage capability of the first system is the sub-area with the first power larger than the first threshold, and the sub-area with the coverage capability of the second system is the sub-area with the second power larger than the second threshold. Wherein the first threshold and the second threshold may be the same or different.
For example, it is assumed that the first system in fig. 1 and 3 is an LTE system and the second system is a WCDMA system. Further, it is specified that the LTE system has coverage capability in a sub-area when the average value of power generated in the sub-area by the LTE system is larger than-115 dBm. WCDMA systems have coverage capability in a sub-region when the average of the power they produce in that sub-region is greater than-105 dBm. As shown in fig. 3, the LTE system generates-79.8 dBm in the first sub-area (i.e., -79.8dBm in the first sub-area in cell a), and the WCDMA system generates-58.2 dBm in the first sub-area (i.e., -58.2dBm in the sum of the power generated in the first sub-area in cell c and cell d). Obviously, the power of the LTE system in the first sub-area exceeds the threshold (-115dBm) of the LTE system, so the LTE system has coverage capability in the first sub-area, and similarly, the power of the WCDMA system in the first sub-area exceeds the threshold (-105dBm) of the WCDMA system, so the WCDMA system also has coverage capability in the first sub-area.
In this way, the number of sub-areas of the first system and the second system, which have coverage capability respectively, can be determined, and the difference of the coverage capability of the first system and the second system in the preset area can be judged.
Of course, the systems of the different systems specifically have the coverage capability in which received power value range, and may be set according to practical application scenarios, and the embodiments of the present application are not limited.
It can be understood that if the number of sub-areas with coverage capability of the first system is greater than the number of sub-areas with coverage capability of the second system, the coverage capability of the first system in the preset area is better than that of the second system.
Alternatively, if a ratio of sub-areas of a system having coverage capability in a predetermined area is defined to be a certain ratio, the system is considered to have coverage capability in the predetermined area. For example, within a predetermined area, a system has coverage capability within the predetermined area when the sub-area of the system having coverage capability reaches 85% and above. The proportional values may be the same or different due to different system technologies. When the first system has coverage capability in the whole preset area and the second system has no coverage capability in the preset area, the coverage capability of the first system in the preset area is larger than that of the second system.
Case 2: the coverage capacity of the first system in the preset area is smaller than that of the second system.
Based on the same principle, if the number of the sub-areas with the coverage capability of the first system is smaller than that of the sub-areas with the coverage capability of the second system, the coverage capability of the first system in the preset area is weaker than that of the second system.
Or when the first system has no coverage capability in the whole preset area and the second system has coverage capability in the preset area, the coverage capability of the first system in the preset area is smaller than that of the second system.
Case 3: the coverage capability of the first system in the preset area is the same as that of the second system.
When the number of the sub-areas with the coverage capability of the first system is the same as that of the second sub-areas with the coverage capability of the second system, the coverage capability of the first system in the preset area is the same as that of the second system.
Case 4: the coverage capability of the first system in the preset area and the coverage capability of the second system in the preset area have advantages and disadvantages respectively.
When the first system covers some sub-areas which cannot be covered by the second system, and the second system also covers some areas which cannot be covered by the first system, the first system and the second system can be configured, managed and the like according to the covered sub-areas of the first system and the second system in the preset area.
It is understood that after determining the coverage capability of the first system and the second system in the predetermined area, respectively, various network operations can be purposefully performed. Illustratively, if the first system and the second system are required to have the same coverage capability, then supplementary construction and network optimization adjustment work is carried out on an area with insufficient coverage of a certain system. For another example, if the first system needs to perform frequency reduction network quitting and the second system needs to provide supplementary coverage for the first system after frequency reduction network quitting, then the frequency reduction network quitting operation of the first system can be selected to be performed first in an area with good coverage of the second system.
According to the coverage capacity determining method, the first power received by the terminal from the first system in each sub-area of the preset area and the second power received by the terminal from the second system are respectively determined, so that when the first power and the second power meet preset conditions, the coverage capacity of the first system in the preset area can be determined to be larger than that of the second system. On one hand, the field test link is reduced, the workload of personnel is reduced, and on the other hand, from the actual received power angle of the terminal, the actual coverage capability of the base station capable of providing the coverage range can be obtained, so that the calculation result is more accurate.
Further, by adopting the technical scheme of the embodiment of the application, not only the difference of the coverage capacity of the first system and the second system in the preset area can be judged, but also the difference of the coverage of the first system and the second system in specific sub-areas can be known, for example, the coverage capacity of the first system in the first sub-area is better and the coverage capacity of the second system in the first sub-area is poorer. Therefore, according to the coverage capability difference in specific sub-areas, optimization work is carried out on the first system and the second system so as to improve the service quality.
Certainly, the technical solution of the embodiment of the present application may also be applied to a multi-frequency point deployment scenario, where a communication system may be deployed on multiple frequency points, and thus when determining whether a certain system has a coverage capability in a sub-area, optionally, it is respectively determined whether each frequency point of the system has a coverage capability in the sub-area, and when at least one frequency point of the system has a coverage capability in the sub-area, the system has a coverage capability in the sub-area.
Or, when the geographic area range of the sub-area is large, for convenience, the frequency points may not be distinguished, and as long as the system has the coverage capability in all the sub-areas of the preset area, the system is considered to have the overall coverage capability in the preset area.
Or, according to the needs of system performance, for example, only when a certain frequency point realizes continuous coverage in a certain sub-area or in certain sub-areas, it may be specified that only when the certain frequency point has coverage in a certain sub-area or in certain sub-areas, the system is considered to have overall coverage in the preset area.
The network device (also referred to as coverage capability determining apparatus herein) may be divided into functional modules or functional units according to the above method examples, for example, each functional module or functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module may be implemented in a form of hardware, or may be implemented in a form of a software functional module or a functional unit. The division of the modules or units in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation.
Fig. 6 shows a schematic diagram of a possible structure of the coverage capability determining apparatus in the above embodiment. The coverage capability determining apparatus 600 includes: a processing unit 601. The processing unit 601 is used for controlling and managing the operation of the coverage capability determining apparatus 600.
Specifically, the processing unit is configured to determine a first power received by the terminal from the first system in each sub-area of the preset area, and determine a second power received by the terminal from the second system in each sub-area of the preset area; and respectively determining the coverage capability of the first system and the coverage capability of the second system in the preset area according to the first power of the terminal in each sub-area of the preset area and the second power of the terminal in each sub-area of the preset area.
In a possible implementation manner of the embodiment of the present application, the processing unit is further configured to, if the number of the sub-areas with coverage capability of the first system is greater than the number of the sub-areas with coverage capability of the second system, make the coverage capability of the first system in the preset area better than that of the second system, where the sub-area with coverage capability of the first system is a sub-area with a first power greater than a first threshold, and the sub-area with coverage capability of the second system is a sub-area with a second power greater than a second threshold; if the number of the subareas with the coverage capability of the first system is less than that of the subareas with the coverage capability of the second system, the coverage capability of the first system in a preset area is weaker than that of the second system; if the number of the sub-areas with the coverage capability of the first system is equal to the number of the sub-areas with the coverage capability of the second system, the coverage capability of the first system in the preset area is the same as that of the second system; if the second system does not have coverage capability in the partial sub-area where the first system has coverage capability and the second system does not have coverage capability in the partial sub-area where the second system has coverage capability, the coverage capability of the first system and the coverage capability of the second system are good and bad respectively.
In a possible implementation manner of the embodiment of the present application, in a case that the first system is a non-macro-diversity system, a first power received by the terminal from the first system in a first sub-area in a preset area is a power received by the terminal from a third cell of the first system in the first sub-area, where the third cell is a cell in the first system, where the terminal received power is the largest;
in the case that the second system is a non-macro diversity system, the second power received by the terminal from the second system in the first sub-area is the power received by the terminal from a fourth cell of the second system in the first sub-area, wherein the fourth cell is the cell of the second system which maximizes the received power of the terminal.
In a possible implementation manner of the embodiment of the present application, in a case that the first system is a macro diversity system, a first power received by the terminal from the first system in a first sub-area of the preset area is a sum of received powers of cells of all first systems, which satisfy the condition of entering the active set, of the terminal from the first system in the first sub-area, where a fifth cell is a cell in the first system that generates the largest received power in the first preset sub-area, other cells that satisfy the condition of entering the active set are cells in the first system whose received power difference from the fifth cell is smaller than a third threshold, and a total number of all cells that satisfy the condition of entering the active set, including the fifth cell, is further limited by the number of the largest cells in the active set of the first system;
and in the case that the second system is a macro diversity system, the second power received by the terminal from the second system in the first sub-area is the sum of the received powers of all cells of the second system, which satisfy the condition of entering the active set, of the terminal from the second system in the first sub-area, wherein the sixth cell is a cell in the second system, which generates the largest received power in the first preset sub-area, the other cells satisfying the condition of entering the active set are cells in the second system, whose received power difference value with the sixth cell is smaller than a fourth threshold value, and the total number of all cells satisfying the condition of entering the active set, including the sixth cell, is further limited by the maximum number of cells of the active set of the second system.
In a possible implementation manner of the embodiment of the present application, a first power received by the terminal from the first cell in a first sub-area in the preset area is related to a power gain of the antenna of the first cell, the power gain of the antenna of the first cell is determined by a maximum transmission power of the antenna of the first cell and a power gain attenuation value of the antenna of the first cell in each direction, and the power gain attenuation value of the antenna of the first cell in each direction is determined by a directional diagram of the antenna of the first cell;
the second power received by the terminal from the second cell in the first sub-area in the preset area is related to the power gain of the antenna of the second cell, the power gain of the antenna of the second cell is determined by the maximum transmission power of the antenna of the second cell and the power gain attenuation value of the antenna of the second cell in each direction, and the power gain attenuation value of the antenna of the second cell in each direction is determined by the directional diagram of the antenna of the second cell.
Of course, processing unit 601 may also perform other processes for the techniques described herein.
The overlay capability determining apparatus 600 may further include a storage unit 602 and a communication unit 603, the storage unit 602 being configured to store program codes and data of the overlay capability determining apparatus 600; the communication unit 603 is configured to support communication of the coverage capability determining apparatus 600 with other network entities, for example, a base station in fig. 1.
As shown in fig. 7, the processing unit 601 may be a processor 701 or a controller in the coverage determination apparatus 700, and the processor 701 or the controller may implement or execute various exemplary logic blocks, modules and circuits described in connection with the disclosure of the present application. The processor 701 or controller may be a central processing unit, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, transistor logic, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor 701 may be a combination that implements a computing function, and may include, for example, a combination of one or more microprocessors, a combination of a Digital Signal Processing (DSP) and a microprocessor, or the like.
The storage unit 602 may be a memory 702 or the like in the overlay capability determination apparatus 700, and the memory 702 may include a volatile memory, such as a random access memory; the memory 702 may also include non-volatile memory, such as read-only memory, flash memory, a hard disk, or a solid state disk; the memory may also comprise a combination of memories of the kind described above.
The communication unit 603 may be a transceiver, a transceiver circuit or a communication interface 703 etc. of the coverage capability determining apparatus 700.
The bus 704 may be an Extended Industry Standard Architecture (EISA) bus or the like. The bus 704 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in FIG. 7, but this is not intended to represent only one bus or type of bus.
Through the above description of the embodiments, it is clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions. For the specific working processes of the system, the apparatus and the unit described above, reference may be made to the corresponding processes in the foregoing method embodiments, and details are not described here again.
The steps of a method or algorithm described in connection with the disclosure herein may be embodied in hardware or in software instructions executed by a processor. The software instructions may consist of corresponding software modules that may be stored in RAM, flash memory, ROM, Erasable Programmable Read Only Memory (EPROM), Electrically Erasable Programmable Read Only Memory (EEPROM), registers, a hard disk, a removable hard disk, a compact disc read only memory (CD-ROM), or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an Application Specific Integrated Circuit (ASIC). Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a Read-Only Memory (ROM), an Erasable Programmable Read-Only Memory (EPROM), an optical fiber, a portable Compact Disc Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In embodiments of the present application, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The above is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (8)
1. A method for coverage capability determination, comprising:
respectively determining first power received by the terminal from a first system in each sub-area of a preset area, and respectively determining second power received by the terminal from a second system in each sub-area of the preset area; wherein, in a case that the first system is a non-macro-diversity system, a first power received by the terminal from the first system in a first sub-area of the preset area is a power received by the terminal from a third cell of the first system in the first sub-area, wherein the third cell is a cell in the first system which enables the terminal to receive power at a maximum; in the case that the second system is a non-macro-diversity system, the second power received by the terminal from the second system in the first sub-area is the power received by the terminal from a fourth cell of the second system in the first sub-area, wherein the fourth cell is the cell in the second system which maximizes the terminal received power;
and respectively determining the coverage capability of the first system and the coverage capability of the second system in the preset area according to the first power of the terminal in each sub-area of the preset area and the second power of the terminal in each sub-area of the preset area.
2. The method according to claim 1, wherein the determining the coverage capability of the first system and the coverage capability of the second system in the preset area according to the first power of the terminal in each sub-area of the preset area and the second power of the terminal in each sub-area of the preset area respectively comprises:
if the number of the sub-areas with the coverage capability of the first system is larger than that of the sub-areas with the coverage capability of the second system, the coverage capability of the first system in the preset area is better than that of the second system, wherein the sub-area with the coverage capability of the first system is a sub-area with a first power larger than a first threshold value, and the sub-area with the coverage capability of the second system is a sub-area with a second power larger than a second threshold value;
if the number of the subareas with the coverage capability of the first system is less than that of the subareas with the coverage capability of the second system, the coverage capability of the first system in the preset area is weaker than that of the second system;
if the number of the sub-areas with the coverage capability of the first system is equal to the number of the sub-areas with the coverage capability of the second system, the coverage capability of the first system in the preset area is the same as that of the second system;
if the second system does not have the coverage capability in the partial sub-area where the first system has the coverage capability and the first system does not have the coverage capability in the partial sub-area where the second system has the coverage capability, the coverage capability of the first system and the coverage capability of the second system are good and bad respectively.
3. The coverage capability determining method according to claim 2, wherein in case that the first system is a macro diversity system, the first power received by the terminal from the first system in a first sub-area of the preset area is the sum of the received powers of all cells of the first system meeting the condition of entering an active set in the first sub-area from the first system, wherein the fifth cell is a cell generating the maximum received power in the first sub-area in the first system, the other cells meeting the condition of entering the active set are the cells in the first system, the received power difference between the other cells and the fifth cell is smaller than a third threshold, and the total number of all the cells meeting the condition of entering the active set, including the fifth cell, is further limited by the maximum number of the cells in the active set of the first system;
in the case that the second system is a macro diversity system, the second power received by the terminal from the second system in the first sub-area is the sum of the received powers of the cells of all second systems, which satisfy the condition of entering into the active set, of the terminal from the second system in the first sub-area, wherein the sixth cell is the cell in the second system which generates the largest received power in the first sub-area, the other cells which satisfy the condition of entering into the active set are the cells in the second system whose received power difference value with the sixth cell is smaller than a fourth threshold value, and the total number of all the cells, including the sixth cell, which satisfy the condition of entering into the active set is further limited by the maximum number of the cells in the active set of the second system.
4. The coverage capability determination method according to any one of claims 1 to 3,
a first power received by the terminal from a first cell in a first sub-area of the preset area is related to a power gain of an antenna of the first cell, the power gain of the antenna of the first cell is determined by a maximum transmission power of the antenna of the first cell and a power gain attenuation value of the antenna of the first cell in each direction, and the power gain attenuation value of the antenna of the first cell in each direction is determined by a directional diagram of the antenna of the first cell;
the second power received by the terminal from the second cell in the first sub-area in the preset area is related to the power gain of the antenna of the second cell, the power gain of the antenna of the second cell is determined by the maximum transmission power of the antenna of the second cell and the power gain attenuation value of the antenna of the second cell in each direction, and the power gain attenuation value of the antenna of the second cell in each direction is determined by the directional diagram of the antenna of the second cell.
5. A coverage capability determination apparatus, comprising:
the terminal comprises a processing unit, a first power control unit and a second power control unit, wherein the processing unit is used for respectively determining a first power received by the terminal from a first system in each sub-area of a preset area and respectively determining a second power received by the terminal from a second system in each sub-area of the preset area; wherein, in a case that the first system is a non-macro-diversity system, a first power received by the terminal from the first system in a first sub-area of the preset area is a power received by the terminal from a third cell of the first system in the first sub-area, wherein the third cell is a cell in the first system which enables the terminal to receive power at a maximum; in the case that the second system is a non-macro-diversity system, the second power received by the terminal from the second system in the first sub-area is the power received by the terminal from a fourth cell of the second system in the first sub-area, wherein the fourth cell is the cell in the second system which maximizes the terminal received power; and respectively determining the coverage capability of the first system and the coverage capability of the second system in the preset area according to the first power of the terminal in each sub-area of the preset area and the second power of the terminal in each sub-area of the preset area.
6. The coverage capability determination apparatus of claim 5,
the processing unit is further configured to, if the number of the sub-areas with the coverage capability of the first system is greater than the number of the sub-areas with the coverage capability of the second system, make the coverage capability of the first system in the preset area better than that of the second system, where the sub-area with the coverage capability of the first system is a sub-area with a first power greater than a first threshold, and the sub-area with the coverage capability of the second system is a sub-area with a second power greater than a second threshold; if the number of the subareas with the coverage capability of the first system is less than that of the subareas with the coverage capability of the second system, the coverage capability of the first system in the preset area is weaker than that of the second system; if the number of the sub-areas with the coverage capability of the first system is equal to the number of the sub-areas with the coverage capability of the second system, the coverage capability of the first system in the preset area is the same as that of the second system; if the second system does not have the coverage capability in the partial sub-area where the first system has the coverage capability and the first system does not have the coverage capability in the partial sub-area where the second system has the coverage capability, the coverage capability of the first system and the coverage capability of the second system are good and bad respectively.
7. The coverage capability determining apparatus according to claim 6, wherein in case that the first system is a macro diversity system, the first power received by the terminal from the first system in a first sub-area of the preset area is the sum of the received powers of all cells of the first system meeting the condition of entering an active set in the first sub-area from the first system, wherein the fifth cell is a cell generating the maximum received power in the first sub-area in the first system, the other cells meeting the condition of entering the active set are the cells in the first system, the received power difference between the other cells and the fifth cell is smaller than a third threshold, and the total number of all the cells meeting the condition of entering the active set, including the fifth cell, is further limited by the maximum number of the cells in the active set of the first system;
in the case that the second system is a macro diversity system, the second power received by the terminal from the second system in the first sub-area is the sum of the received powers of the cells of all second systems, which satisfy the condition of entering into the active set, of the terminal from the second system in the first sub-area, wherein the sixth cell is the cell in the second system which generates the largest received power in the first sub-area, the other cells which satisfy the condition of entering into the active set are the cells in the second system whose received power difference value with the sixth cell is smaller than a fourth threshold value, and the total number of all the cells, including the sixth cell, which satisfy the condition of entering into the active set is further limited by the maximum number of the cells in the active set of the second system.
8. The coverage capability determination apparatus according to any one of claims 5 to 7,
a first power received by the terminal from a first cell in a first sub-area of the preset area is related to a power gain of an antenna of the first cell, the power gain of the antenna of the first cell is determined by a maximum transmission power of the antenna of the first cell and a power gain attenuation value of the antenna of the first cell in each direction, and the power gain attenuation value of the antenna of the first cell in each direction is determined by a directional diagram of the antenna of the first cell;
the second power received by the terminal from the second cell in the first sub-area in the preset area is related to the power gain of the antenna of the second cell, the power gain of the antenna of the second cell is determined by the maximum transmission power of the antenna of the second cell and the power gain attenuation value of the antenna of the second cell in each direction, and the power gain attenuation value of the antenna of the second cell in each direction is determined by the directional diagram of the antenna of the second cell.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102625326A (en) * | 2012-03-22 | 2012-08-01 | 浙江大学 | Method and device for multicell joint optimization under coverage of cellular mobile communication network |
| CN106412973A (en) * | 2015-07-29 | 2017-02-15 | 中国移动通信集团河南有限公司 | Network coverage quality detection method and device |
| CN107094602A (en) * | 2017-03-28 | 2017-08-29 | 陆川县巨丰种植园 | A kind of cuttage and seedling culture method of passion fruit |
| CN108243445A (en) * | 2016-12-27 | 2018-07-03 | 中国移动通信集团湖北有限公司 | A kind of method and system for determining weak overlay area |
-
2018
- 2018-07-04 CN CN201810725524.5A patent/CN108834169B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102625326A (en) * | 2012-03-22 | 2012-08-01 | 浙江大学 | Method and device for multicell joint optimization under coverage of cellular mobile communication network |
| CN106412973A (en) * | 2015-07-29 | 2017-02-15 | 中国移动通信集团河南有限公司 | Network coverage quality detection method and device |
| CN108243445A (en) * | 2016-12-27 | 2018-07-03 | 中国移动通信集团湖北有限公司 | A kind of method and system for determining weak overlay area |
| CN107094602A (en) * | 2017-03-28 | 2017-08-29 | 陆川县巨丰种植园 | A kind of cuttage and seedling culture method of passion fruit |
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