CN103581983B - Cell level intensity estimation method, related equipment and related system in multi-network type - Google Patents

Abstract

The embodiment of the present invention discloses a method for estimating the level strength of a cell under a multi-network system, related equipment and a system, wherein the method for estimating the level strength of a cell under a multi-network system includes: the network device obtains the measurement information reported by the UE , the measurement information includes the location information of the UE and the reception level of the cell measured by the UE, wherein the network standard type currently used by the UE is the first network standard; using the obtained measurement information of the UE , and the transmit power of the second network standard co-located with the first network standard, estimating the level strength of each cell received by the UE adopting the second network standard at each location. The technical solution provided by the invention can effectively improve the measurement accuracy of cell level strength, and has the characteristics of low cost.

Description

Cell Level Intensity Estimation Method, Related Equipment and System under Multiple Network Standards

technical field

The invention relates to the communication field, in particular to a method for estimating cell level strength, related equipment and a system under a multi-network system.

Background technique

In the communication system, network applications such as the construction of a geospatial feature library and radio frequency optimization are realized by collecting the level strength of different cells measured by User Equipment (UE, User Equipment) at multiple locations. The geospatial feature library refers to a collection of feature information (such as level information) at different locations in geographic space, and the UE can be positioned using the geospatial feature library.

In the 3rd Generation Partnership Project (3GPP, The3rd Generation Partnership Project) protocol and the Long Term Evolution (LTE, Long Term Evolution) minimum drive test (MDT, Minimum Drive Test) protocol, the Universal Mobile Telecommunications System (UMTS, Universal Mobile Telecommunications System) standard and LTE standard UE can report the location information of the UE and the cell level information measured by the UE to the network side equipment, but in the Global System for Mobile Communication (GSM, Global System for Mobile Communication) standard , the network side device cannot directly obtain the location information reported by the UE itself, and at the same time cannot obtain accurate path loss information. Therefore, in the traditional solution, under the GSM system, only road surface measurement software can be used to measure the road surface that the vehicle travels, so as to measure the level strength of the cell at different locations.

However, there are two disadvantages in using the above scheme to measure the cell level strength at different locations under the GSM system:

First, because the above scheme uses road surface measurement software to measure the road surface that the vehicle travels, therefore, the data on the non-road surface cannot be measured;

Second, the road surface measurement process requires a lot of manpower, material resources and financial resources, therefore, the above-mentioned solution requires a relatively high cost.

Contents of the invention

Embodiments of the present invention provide a method for estimating cell level strength under multi-network standards, related equipment, and a system, which are used to improve the measurement accuracy of cell level strength and reduce the measurement cost of cell level strength in multi-network standard scenarios .

In order to solve the above technical problems, embodiments of the present invention provide the following technical solutions:

One aspect of the present invention provides a method for estimating cell level strength under a multi-network system, including:

The network device obtains the measurement information reported by the user equipment UE, the measurement information includes the location information of the UE and the reception level of the cell measured by the UE, wherein the network standard type currently used by the UE is the first network format;

According to the acquired measurement information of the UE, combining the reception levels of the same cell measured by different UEs in the same position to obtain the reception level of each cell in each position;

calculating the path loss of each cell at each location according to the reception level of each cell at each location;

According to the transmit power of the second network standard co-located with the first network standard and the path loss of each cell in the respective positions, estimate the UE using the second network standard received at the respective positions The level strength of each cell; wherein, the second network standard co-located with the first network standard is in the same frequency band as the first network standard and has the same antenna feeder engineering parameters.

In combination with the first aspect, in a first possible implementation manner, the calculation of the path loss of each cell at each location according to the reception level of each cell at each location is specifically:

Use the formula Pu(xy,n)=Pilot Power(n)-U_Rxlev(xy,n) to obtain the path loss of each cell at each location, where Pu(xy,n) represents the path loss at location xy The path loss of cell n, where PilotPower(n) represents the transmit power of cell n, where U_Rxlev(xy, n) represents the receiving level of cell n at position xy;

According to the transmission power of the second network standard co-located with the first network standard and the path loss of each cell in each position, estimating the reception of the UE using the second network standard at the respective positions The level intensity of each cell to be obtained is specifically:

Using the formula G_Rxlev(xy,n)=G_BTSPower-Pu(xy,n), the level strength of each cell received by the UE adopting the second network standard at each position is obtained, wherein, in the formula, G_Rxlev( xy, n) indicates the level strength of the cell n received by the UE using the second network standard at position xy, where G_BTSPower represents the transmission of the second network standard co-located with the first network standard power, where Pu(xy, n) represents the path loss of cell n at position xy.

In combination with the first aspect, in a second possible implementation manner, the path loss of each cell at each location is calculated according to the receiving level of each cell at each location, specifically:

Use the formula Pu(xy,n)=Pilot Power(n)-U_Rxlev(xy,n)+L(n) to obtain the spatial path loss of each cell at each location, where Pu(xy,n ) represents the spatial path loss of cell n at position xy, where Pilot Power(n) represents the transmit power of cell n, where U_Rxlev(xy, n) represents the receiving level of cell n at position xy, L(n ) represents the antenna gain of cell n;

According to the transmission power of the second network standard co-located with the first network standard and the path loss of each cell in each position, estimating the reception of the UE using the second network standard at the respective positions The receiving level of each cell to be received is specifically:

Using the formula G_Rxlev(xy,n)=G_BTSPower-Pu(xy,n)+L'(n), the level strength of each cell received by the UE of the second network standard at each position is obtained, where , where G_Rxlev(xy, n) represents the level strength of cell n received by the UE using the second network standard at position xy, where G_BTSPower represents the first network standard co-sited with the first network standard The transmit power of the second network standard, where Pu(xy, n) represents the spatial path loss of cell n at position xy, and where L'(n) represents the antenna gain of cell n after antenna feed adjustment.

With reference to the first aspect or the first possible implementation of the first aspect or the second possible implementation of the first aspect, in a third possible implementation, the estimation uses the The level strength of each cell received by the UE at each position, and then includes:

Detecting whether there is a cell covered only by the second network standard within the preset range around each position, and if so, the level strength of the detected cell covered only by the second network standard is greater than or equal to the preset threshold, then,

Correcting the estimated level strength of each cell received by the UE adopting the second network standard at each position by using the level strength of the cell covered only by the second network standard.

In combination with the first aspect or the first possible implementation of the first aspect or the second possible implementation of the first aspect or the third possible implementation of the first aspect, in the fourth possible implementation , after the estimating the level strength of each cell received by the UE adopting the second network standard at the each position, further includes:

A geospatial feature library of the second network standard is constructed by using the obtained reception levels of the cells received by the UE adopting the second network standard at the respective locations.

In combination with the first aspect or the first possible implementation of the first aspect or the second possible implementation of the first aspect or the third possible implementation of the first aspect or the fourth possible implementation of the first aspect Implementation manner, in a fifth possible implementation manner, the measurement information reported by the UE is: a measurement report measured by the UE based on the Assisted Global Positioning System AGPS technology or the minimum drive test MDT technology, or the UE DT data measured based on drive test DT technology.

In combination with the first aspect or the first possible implementation of the first aspect or the second possible implementation of the first aspect or the third possible implementation of the first aspect or the fourth possible implementation of the first aspect The implementation manner or the fifth possible implementation manner of the first aspect, in the sixth possible implementation manner, the combining the receiving levels of the same cell measured by different UEs at the same location includes: The receiving level of the same cell measured by different UEs in the same location is averaged.

In combination with the first aspect or the first possible implementation of the first aspect or the second possible implementation of the first aspect or the third possible implementation of the first aspect or the fourth possible implementation of the first aspect The implementation manner or the fifth possible implementation manner of the first aspect or the sixth possible implementation manner of the first aspect, in the seventh possible implementation manner, the type of the first network standard is: universal mobile communication System UMTS standard, or Long Term Evolution LTE standard; the type of the second network standard is: Global System for Mobile Communications GSM standard.

A second aspect of the present invention provides a network device, including:

An acquiring unit, configured to acquire measurement information reported by a user equipment UE, where the measurement information includes location information of the UE and a reception level of a cell measured by the UE, wherein the network standard type currently adopted by the UE is first network format;

A preprocessing unit, configured to combine the reception levels of the same cell measured by different UEs in the same position according to the measurement information of the UE acquired by the acquisition unit, to obtain the reception levels of each cell in each position ;

a calculation unit, configured to calculate the path loss of each cell at each location according to the reception level of each cell at each location;

An estimating unit, configured to estimate, based on the transmit power of the second network standard co-located with the first network standard and the path loss of each cell in each location, estimating the UE adopting the second network standard in each The level intensity of each cell received at the location; wherein, the co-sited second network standard is in the same frequency band as the first network standard and has the same antenna feeder engineering parameters.

With reference to the second aspect, in a first possible implementation manner, the calculation unit is specifically configured to: use the formula Pu(xy,n)=Pilot Power(n)-U_Rxlev(xy,n) to obtain the respective positions The path loss of each cell under , where Pu(xy, n) represents the path loss of cell n at position xy, where Pilot Power(n) represents the transmit power of cell n, where U_Rxlev(xy, n ) represents the reception level of cell n at position xy;

The estimating unit is specifically configured to: use the formula G_Rxlev(xy,n)=G_BTSPower-Pu(xy,n) to obtain the power level of each cell received by the UE adopting the second network standard at each position Strength, where G_Rxlev(xy, n) in the formula represents the level strength of the cell n received by the UE adopting the second network standard at position xy, and G_BTSPower in the formula represents the power level of the cell co-located with the first network standard The transmit power of the second network standard, where Pu(xy, n) represents the path loss of cell n at position xy.

With reference to the second aspect, in a second possible implementation manner, the calculation unit is specifically configured to: use the formula Pu(xy,n)=Pilot Power(n)-U_Rxlev(xy,n)+L(n), The spatial path loss of each cell at each position is obtained, where Pu(xy, n) in the formula represents the spatial path loss of cell n at position xy, and Pilot Power(n) in the formula represents the transmit power of cell n, where U_Rxlev(xy, n) represents the receiving level of cell n at position xy, and L(n) represents the antenna gain of cell n;

The estimating unit is specifically configured to: use the formula G_Rxlev(xy, n)=G_BTSPower-Pu(xy,n)+L'(n) to obtain the information received by the UE of the second network standard at each location The level strength of each cell, where G_Rxlev(xy, n) represents the level strength of cell n received by the UE using the second network standard at position xy, where G_BTSPower represents the The transmit power of the base station antenna of the second network standard in which the network standard is co-located, where Pu(xy, n) represents the spatial path loss of cell n at position xy, and where L'(n) represents the Feed the adjusted antenna gain.

With reference to the second aspect or the first possible implementation manner of the second aspect or the second possible implementation manner of the second aspect, in a third possible implementation manner, the network device further includes:

A detection unit, configured to detect whether there is a cell covered only by the second network standard within the preset range around each location;

The estimation unit is further configured to: when the detection result of the detection unit is existence, and the detected level strength of the cell covered only by the second network standard is greater than or equal to a preset threshold, use the Correcting the estimated level strength of each cell received by the UE adopting the second network standard at each position by the level strength of the cell covered only by the second network standard.

In combination with the second aspect or the first possible implementation of the second aspect or the second possible implementation of the second aspect or the third possible implementation of the second aspect, in the fourth possible implementation , the network device further includes: a constructing unit, configured to construct the second Geospatial feature library in web format.

In combination with the second aspect or the first possible implementation of the second aspect or the second possible implementation of the second aspect or the third possible implementation of the second aspect or the fourth possible implementation of the second aspect Implementation manner, in a fifth possible implementation manner, the preprocessing unit is specifically configured to: according to the measurement information of the UE acquired by the acquisition unit, the levels of the same cell measured by different UEs in the same position Intensities are averaged.

A third aspect of the present invention provides a multi-network system, including:

network equipment and at least one user equipment;

Wherein, the user equipment is used to: report measurement information, the measurement information includes the location information of the user equipment and the reception level of the cell measured by the user equipment, wherein the network standard currently adopted by the user equipment The type is the first network standard;

The network device is configured to: acquire the measurement information reported by the user equipment; combine the reception levels of the same cell measured by different user equipments at the same location according to the acquired measurement information of the user equipment, Obtain the receiving level of each cell in each position; calculate the path loss of each cell in each position according to the receiving level of each cell in each position; The transmit power of the second network standard and the path loss of each cell at each location are estimated to estimate the level strength of each cell received by the user equipment using the second network standard at each location; wherein, the The co-sited second network standard is in the same frequency band as the first network standard and has the same antenna feeder engineering parameters.

It can be seen from the above that in the embodiment of the present invention, the cell level strength of another network standard that is co-located is estimated according to the measurement information reported by the UE acquired by one network standard. On the one hand, the measurement information reported by the UE is not limited to Therefore, the cell level strength of another network system estimated by using the measurement information will include more data points to improve the measurement accuracy of the cell level strength; on the other hand, the data used in the present invention Reporting through measurement by UE does not need to spend a lot of manpower, material resources and financial resources. Therefore, the technical solution of the present invention has the characteristics of low cost.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is a schematic flow chart of an embodiment of a method for estimating cell level strength under a multi-network system provided by the present invention;

FIG. 2 is a schematic flow diagram of another embodiment of the method for estimating cell level strength under the multi-network system provided by the embodiment of the present invention;

FIG. 3 is a schematic diagram of a UE receiving a signal using the UMTS standard in a 1:1 co-site scenario provided by the present invention;

FIG. 4 is a schematic diagram of a UE receiving a signal using the UMTS standard in a non-1:1 co-site scenario provided by the present invention;

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

FIG. 6 is a schematic structural diagram of another embodiment of a network device provided by the present invention;

FIG. 7 is a schematic structural diagram of an embodiment of a multi-network standard system provided by the present invention.

detailed description

With the development of mobile communications, there are more and more scenarios where multiple network standards coexist. Generally, the coexistence of GSM standard and UMTS standard, and the coexistence of GSM standard and LTE standard are the main scenarios at present. Embodiments of the present invention provide a method for estimating cell level strength under a multi-network system, related equipment and a system.

In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The following describes a method for estimating cell level strength under a multi-network system in an embodiment of the present invention, please refer to Figure 1, including:

101. The network device obtains the measurement information reported by the user equipment (UE, User Equipment);

The measurement information reported by the UE includes the location information of the UE and the reception level of the cell measured by the UE.

In the embodiment of the present invention, the above measurement information may be a measurement report obtained by the UE based on Assisted Global Positioning System (AGPS, Assisted Global Positioning System) technology or Minimum Drive Test (MDT, Minimum Drive Test) technology, or it may be It is the DT data measured by the UE based on the drive test (Drive Test) technology. It is not limited here.

Wherein, the network standard type currently adopted by the aforementioned UE is the first network standard. In the embodiment of the present invention, the network-side device in the first network standard can directly obtain the location information and the location information of the UE measured by the UE side from the UE. The measurement information of the reception level of the cell measured by the UE. Since the 3GPP protocol and the LTE MDT protocol stipulate that the UE under the UMTS standard and the LTE standard can report its location information to the network side equipment, therefore, the type of the first network standard in the embodiment of the present invention can be but not limited to UMTS standard or LTE standard.

In practical applications, the location of the UE may be covered by signals of multiple cells. In this case, the measurement information reported by the UE will include the receiving levels of multiple cells measured by the UE. The embodiment of the present invention The receiving level of the cell in the measurement information refers to the signal receiving power of the cell measured by the UE.

102. According to the acquired measurement information of the UE, the receiving levels of the same cell measured by different UEs in the same position are combined to obtain the receiving levels of each cell in each position;

In the embodiment of the present invention, there may be multiple UEs at the same location. Since the hardware performance and system performance of each UE are not the same, based on processing the same location, the reception level of the cell measured by different UEs on the cell covering the location is also different. Not necessarily the same, therefore, the network device combines the reception levels of the same cell measured by different UEs at the same location according to the obtained measurement information of the UE to obtain the reception levels of each cell at each location. Wherein, the method of combining processing may be: take the average value of the receiving levels of the same cell measured by different UEs in the same position, of course, other combining processing methods may also be used, such as the same The smallest value (or the largest value) is taken from the receiving level of the cell as the receiving level of the cell measured at the location, which is not limited here.

Further, after the merging process, the network device may also sort the receiving levels of the cells in each position according to the order of the receiving levels.

103. Calculate the path loss of each cell at each of the above positions according to the receiving levels of each of the cells at each of the above positions;

In the embodiment of the present invention, the network device can use the formula Pu(xy,n)=Pilot Power(n)-U_Rxlev(xy,n) to calculate the path loss of each cell in each of the above positions, where Pu(xy , n) represents the path loss of cell n at position xy, where Pilot Power(n) represents the transmit power of cell n, and where U_Rxlev(xy, n) represents the receiving level of cell n at position xy.

104. According to the transmit power of the second network standard co-located with the above-mentioned first network standard and the path loss of each cell in the above-mentioned each position, estimate the above-mentioned each cell received by the UE adopting the second network standard at the above-mentioned each position receiving level;

In the embodiment of the present invention, if the same area covers multiple network standards at the same time, the multiple network standards are called co-sited. Wherein, the second network standard co-located with the first network standard is in the same frequency band as the first network standard and has the same antenna feeder engineering parameters, and the type of the second network standard is different from the type of the first network standard , specifically may be: GSM standard, of course, the type of the second network standard may also be UMTS standard or LTE standard, which is not limited here.

In the embodiment of the present invention, the network device can use the formula G_Rxlev(xy, n)=G_BTSPower-Pu(xy,n) to calculate the reception level of each cell in each of the above positions under the second network standard, wherein, In the formula, G_Rxlev(xy, n) represents the reception level of the cell n received by the UE adopting the above-mentioned second network standard at position xy, and in the formula, G_BTSPower represents the power of the above-mentioned second network standard co-located with the above-mentioned first network standard The transmit power, G_BTSPower, can be directly obtained from the configuration data of the base station antenna adopting the above-mentioned second network standard, where Pu(xy, n) represents the path loss of the cell n at the position xy.

It should be noted that in practical applications, due to the influence of some factors (such as changes in the surrounding environment of the base station, or the coverage requirements of the cell, etc.), it is necessary to adjust the antenna feeder. In this scenario, the present invention calculates the path In addition to the loss, the influence of the antenna feeder needs to be eliminated. Considering that the spatial path loss information of the two network systems co-sited to the same location is the same, in step 103 of the above embodiment, the network device can use the formula Pu(xy,n)=Pilot Power(n)-U_Rxlev(xy, n)+L(n), calculate the spatial path loss of each cell at each location, where Pu(xy,n) represents the spatial path loss of cell n at position xy, and Pilot Power(n) represents The transmit power of cell n, where U_Rxlev(xy, n) represents the receiving level of cell n at position xy, and L(n) represents the antenna gain of cell n. Further, in step 104, the network device uses the formula G_Rxlev(xy,n)=G_BTSPower-Pu(xy,n)+L'(n) to obtain the reception of each cell in each of the above-mentioned locations under the second network standard Level, where G_Rxlev(xy, n) in the formula represents the reception level of cell n received by the UE adopting the above-mentioned second network standard at position xy, and G_BTSPower in the formula represents the above-mentioned The transmit power of the second network standard, where Pu(xy, n) represents the spatial path loss of cell n at position xy, where L'(n) represents the antenna gain of cell n after antenna feed adjustment, and antenna feed adjustment The final antenna gain can be calculated directly from the horizontal and vertical attenuation files of the antenna.

It should be noted that the network device in the embodiment of the present invention may be a base station controller or a radio network controller (RNC, Radio Network Controller), or the network device in the embodiment of the present invention may also be a base station, which is not limited here . The base station antennas of the co-sited first network standard and the second network standard in the embodiment of the present invention may be deployed on the same base station, or may be deployed on different base stations respectively, which is not limited here.

Because in the communication system, network-side devices (such as base stations) usually use geospatial feature databases when implementing positioning technology, geospatial feature databases refer to feature information (such as level information) at different locations in geographic space collection of compositions. Therefore, in the embodiment of the present invention, the obtained level strength of each cell received by the UE adopting the second network standard at each location may be further used to construct the geospatial feature database of the above-mentioned second network standard.

It can be seen from the above that in the embodiment of the present invention, the cell level strength of another network standard that is co-located is estimated according to the measurement information reported by the UE acquired by one network standard. On the one hand, the measurement information reported by the UE is not limited to Therefore, the cell level strength of another network system estimated by using the measurement information will include more data points to improve the measurement accuracy of the cell level strength; on the other hand, the data used in the present invention Reporting through measurement by UE does not need to spend a lot of manpower, material resources and financial resources. Therefore, the technical solution of the present invention has the characteristics of low cost.

In the embodiment of the present invention, there may be a cell covered by an independent second network standard site in a certain position, and it is necessary to use the signal of the cell covered by the independent second network standard site to communicate with the cell at the position and the receiving station level compensation. As shown in Figure 2, another method for constructing a geospatial feature library applied to a multi-network standard system in the embodiment of the present invention is described, including:

Steps 201 to 204 may be similar to steps 101 to 104 in the embodiment shown in FIG. 1 , and will not be repeated here.

205. Detect whether there is a cell covered only by the second network standard within the preset range around each location;

The network device can delineate the range for each location, and detect whether there is a cell covered by the second network standard that is not co-located within the range, and if it is detected that there is a cell that is only covered by the second network standard in a certain location, then perform step 206, Otherwise, go to step 208 .

206. Determine whether the reception level of the cell is greater than or equal to a preset threshold;

The network device judges whether the signal level and strength of the existing cells covered only by the second network standard are greater than or equal to a preset threshold, if yes, execute step 207, and if not, execute step 208.

207. Using the reception level of the cells covered only by the second network standard to correct and estimate the level strength of each cell received by the UE adopting the second network standard at each of the above locations;

If it is detected that there is a cell covered only by the second network standard within the preset range around a certain location, and the receiving level of the cell is greater than or equal to the preset threshold, the network device uses the cell covered only by the second network standard Cell reception level correction step 204 estimates the level intensity of each cell received by the UE adopting the second network standard at each of the above positions, and the information of the cell to be detected (such as cell name, cell identity, etc.) and the receiving level of the cell are added to the level strength of each cell received by the UE adopting the second network standard at the above-mentioned positions estimated in step 204 .

208. End the process.

Further, in the embodiment of the present invention, after step 207, the final level intensity of each cell received by the UE adopting the second network standard at each location can be further used to construct the above-mentioned geospatial feature database of the second network standard , to improve the accuracy of the constructed geospatial feature library.

It should be noted that the network device in this embodiment of the present invention may be a base station controller or RNC, or the network device in this embodiment of the present invention may also be a base station, which is not limited here. The base station antennas of the co-sited first network standard and the second network standard in the embodiment of the present invention may be deployed on the same base station, or may be deployed on different base stations respectively, which is not limited here.

It can be seen from the above that in the embodiment of the present invention, the cell level strength of another network standard that is co-located is estimated according to the measurement information reported by the UE acquired by one network standard. On the one hand, the measurement information reported by the UE is not limited to Therefore, the cell level strength of another network system estimated by using the measurement information will include more data points to improve the measurement accuracy of the cell level strength; on the other hand, the data used in the present invention Reporting through measurement by UE does not need to spend a lot of manpower, material resources and financial resources. Therefore, the technical solution of the present invention has the characteristics of low cost.

In order to better understand the technical solution of the present invention, a method for estimating cell level strength under a multi-network standard in the above-mentioned embodiment is described below in a specific application scenario. In the embodiment of the present invention, the first network standard It is the UMTS standard, and the second network standard is the GSM standard. The schematic diagram of receiving signals of the UE adopting the UMTS standard in the grid S0 is shown in Figure 3, wherein the black arrow in Figure 3 refers to the base station antenna adopting the UMTS standard , the white arrow refers to the base station antenna using the GSM standard. The black and white arrows on the same line refer to the co-site of the UMTS standard and the GSM standard, that is, in the same frequency band and with the same antenna feeder engineering parameters, as shown in Fig. 3 It can be seen that there is no independent cell covered by the GSM standard on the grid S0.

In the embodiment of the present invention, if multiple UEs are in the same grid, it can be considered that the multiple UEs are in the same position. In practical applications, there may be more than one UE in the grid S0. The embodiment of the present invention assumes that the grid S0 There are only UE1 and UE2 in grid S0, and the measurement information reported by UE1 and UE2 is shown in Table 1 and Table 2 respectively:

Table 1

Table 2

The UMTS network side equipment combines the receiving levels of the same cell measured by different UEs at the same location, and collects statistics on the measurement information reported by each grid point. In other cases, multiple cells are combined first, and then the receiving levels of the same cell number are averaged, and further arranged in the order of receiving levels. For example, Table 3 shows the combined processing of the measurement information reported by UE1 and UE2 in grid S0, and the received level of each cell in grid S0 is obtained:

table 3

Since the UE under the UMTS standard measures the transmit power and has no power control, the UMTS network side device can use the formula Pu(xy,n)=Pilot Power(n)-U_Rxlev(xy, n), calculate the path loss of each cell in each grid, where Pu(xy, n) represents the path loss of cell n at position xy, where PilotPower(n) represents the transmit power of cell n, where U_Rxlev(xy, n) indicates the reception level of cell n at position xy. Thus, the path loss of each cell under each grid is obtained.

For the GSM terminal that adopts the GSM standard and is in the same grid as the above-mentioned UE adopting the UMTS standard, since the GSM standard and the UMTS standard are in the same frequency band, and the engineering parameters of the antenna feeder are the same, it can be considered that the propagation characteristics of the two are basically the same. The same, that is, on the same grid, the path losses of the UMTS cell and the GSM cell are the same. However, due to the difference in transmit power configuration between base station antennas using UMTS and base station antennas using GSM, power correction is required, that is, according to the transmit power of UMTS and the path loss of each cell under each grid obtained above, estimate For the receiving levels of the above-mentioned cells received by the GSM terminal on the above-mentioned grids, the UMTS network side equipment can use the formula G_Rxlev(xy,n)=G_BTSPower-Pu(xy,n) to estimate that under the GSM standard, the above-mentioned The receiving level of each cell under the grid, where G_Rxlev(xy, n) in the formula represents the receiving level of the cell n received by the GSM terminal at position xy, and G_BTSPower in the formula represents the transmission power of the GSM standard, which can be It is obtained directly from the configuration data of the base station antenna adopting the GSM standard.

After estimating the receiving level of each cell under each grid under the GSM standard, the above estimated receiving level of each cell under each grid under the GSM standard can be directly used to construct a GSM geospatial feature library.

Furthermore, for some non-1:1 co-site scenarios, as shown in Figure 4, there is a cell covered by an independent GSM site on the grid S0, so actually the UE on this grid point may also receive the signal, so the UTMS network side equipment can detect whether there is a cell covered only by the GSM standard within the preset range of each grid, and if it exists, and the receiving level of the cell is greater than or equal to the preset threshold, the cell The information (such as cell name, cell identifier, etc.) and the detected receiving level of the cell are added to the estimated level intensity of each cell received by the UE adopting the second network standard at each position above. Of course, the above-mentioned detection can also be performed after the GSM geospatial feature database is constructed. After a cell that meets the above conditions is detected, the information of the above-mentioned cell (such as cell name, cell ID, etc.) and the detected cell The receiving level of GSM is added to the GSM geospatial feature library constructed above to obtain the final GSM geospatial feature library. It is not limited here.

It should be noted that the network device in this embodiment of the present invention may be a base station controller or RNC, or the network device in this embodiment of the present invention may also be a base station, which is not limited here. The base station antennas of the co-sited first network standard and the second network standard in the embodiment of the present invention may be deployed on the same base station, or may be deployed on different base stations respectively, which is not limited here.

It can be seen from the above that in the embodiment of the present invention, the cell level strength of another network standard that is co-located is estimated according to the measurement information reported by the UE acquired by one network standard. On the one hand, the measurement information reported by the UE is not limited to Therefore, the cell level strength of another network system estimated by using the measurement information will include more data points to improve the measurement accuracy of the cell level strength; on the other hand, the data used in the present invention Reporting through measurement by UE does not need to spend a lot of manpower, material resources and financial resources. Therefore, the technical solution of the present invention has the characteristics of low cost.

A network device in the embodiment of the present invention is described below. As shown in FIG. 5 , the network device 500 in the embodiment of the present invention includes:

The acquiring unit 501 is configured to acquire measurement information reported by the UE, where the measurement information includes the location information of the UE and the reception level of the cell measured by the UE, wherein the network standard type currently used by the UE is the first network standard.

The preprocessing unit 502 is configured to combine the reception levels of the same cell measured by different UEs in the same position according to the measurement information of the UE acquired by the acquisition unit 501, to obtain the reception levels of each cell in each position ;

The preprocessing unit 502 may be specifically configured to: according to the measurement information of the UE acquired by the acquiring unit 501, take an average value of the level strengths of the same cell measured by different UEs in the same position.

A calculation unit 503, configured to calculate the path loss of each cell at each of the positions above according to the reception level of each cell at each of the positions above;

The estimating unit 504 is configured to estimate, based on the transmit power of the second network standard co-located with the first network standard and the path loss of each cell in the above-mentioned various positions, the UE adopting the above-mentioned second network standard received at each of the above-mentioned positions The level strength of each of the aforementioned cells; wherein, the co-sited second network standard is in the same frequency band as the first network standard and has the same antenna feeder engineering parameters.

In an application scenario, the calculation unit 503 is specifically configured to: use the formula Pu(xy,n)=Pilot Power(n)-U_Rxlev(xy,n) to obtain the path loss of each cell at each of the above positions, wherein, where Pu(xy, n) represents the path loss of cell n at position xy, where Pilot Power(n) represents the transmit power of cell n, and where U_Rxlev(xy, n) represents the receiving power of cell n at position xy The level; the estimating unit 504 is specifically configured to: use the formula G_Rxlev(xy,n)=G_BTSPower-Pu(xy,n) to obtain the receiving level of each cell under the above-mentioned each position under the above-mentioned second network standard, wherein, In the formula, G_Rxlev(xy, n) represents the reception level of the cell n received by the UE adopting the above-mentioned second network standard at position xy, and in the formula, G_BTSPower represents the power of the above-mentioned second network standard that is co-located with the above-mentioned first network standard Transmit power, where Pu(xy, n) represents the path loss of cell n at position xy.

In practical applications, due to the influence of some factors (such as changes in the surrounding environment of the base station, or the coverage requirements of the cell, etc.), it is necessary to adjust the antenna feeder. In this scenario, the present invention calculates the path loss on the basis of, It is also necessary to eliminate the influence of the antenna feed. Considering that the spatial path loss information of the two network systems co-sited to the same location is the same, the calculation unit 503 is specifically used to: use the formula Pu(xy,n)=Pilot Power(n)-U_Rxlev(xy,n)+L (n), calculate the spatial path loss of each cell at each position, where Pu(xy, n) represents the spatial path loss of cell n at position xy, and Pilot Power(n) represents the emission of cell n Power, where U_Rxlev(xy, n) represents the receiving level of cell n at position xy, and L(n) represents the antenna gain of cell n; the estimation unit 504 is specifically used to: use the formula G_Rxlev(xy, n)=G_BTSPower -Pu(xy,n)+L'(n), to obtain the receiving level of each cell at the above-mentioned locations under the above-mentioned second network standard, wherein, G_Rxlev(xy,n) in the formula indicates that the above-mentioned second network is used The reception level of the cell n received by the UE of the standard at the position xy, where G_BTSPower represents the transmit power of the above-mentioned second network standard co-located with the above-mentioned first network standard, where Pu(xy, n) represents the position xy The spatial path loss of cell n below, where L'(n) represents the antenna gain of cell n after antenna feed adjustment. Wherein, the adjusted antenna gain of the above-mentioned antenna feed can be directly calculated and obtained from the horizontal and vertical attenuation files of the antenna.

Further, on the basis of the network device 500 shown in FIG. 5 , as shown in FIG. 6 , the network device 600 also includes a detection unit 505 for detecting whether there is only the above-mentioned second network A cell covered by the standard; the estimation unit 504 is also used for: when the detection result of the detection unit 505 is existence, and the detected receiving level of the cell covered only by the second network standard is greater than or equal to a preset threshold, then, Using the receiving levels of the cells covered only by the second network standard to correct the level intensity of each cell received by the UE adopting the second network standard at each position obtained through the estimation.

Further, on the basis of the network device 500 shown in FIG. 5 or FIG. 6 , the network device further includes: a construction unit, configured to use the estimation unit estimated by the above-mentioned UE using the above-mentioned second network standard to receive The receiving level of each of the above-mentioned cells is used to construct the geospatial feature database of the second network standard, so as to use the geospatial feature database of the second network standard for network analysis.

It should be noted that the network device in this embodiment of the present invention may be a base station controller or RNC, or the network device in this embodiment of the present invention may also be a base station, which is not limited here. The base station antennas of the co-sited first network standard and the second network standard in the embodiment of the present invention may be deployed on the same base station, or may be deployed on different base stations respectively, which is not limited here. The network device in the embodiment of the present invention can be like the network device in the above method embodiment, and can be used to realize all the technical solutions in the above method embodiment, and the functions of each functional module can be specifically realized according to the method in the above method embodiment For the specific implementation process, reference may be made to relevant descriptions in the foregoing embodiments, and details are not repeated here.

It can be seen from the above that in the embodiment of the present invention, the network device in the embodiment of the present invention estimates the cell level strength of the co-sited another network standard according to the measurement information reported by the UE obtained by one network standard. On the one hand, because the measurement information reported by the UE does not It is not limited to road surface data, so the cell level strength of another network system estimated by using the measurement information will include more data points to improve the measurement accuracy of the cell level strength; on the other hand, the present invention uses The data are reported by the UE through measurement without spending a lot of manpower, material resources and financial resources. Therefore, the technical solution of the present invention has the characteristics of low cost.

The multi-network standard system in the embodiment of the present invention is described below, please refer to FIG. 7 , the multi-network standard system 700 in the embodiment of the present invention includes:

a network device 701 and at least one user device 702;

Wherein, the user equipment 702 is used to: report measurement information, the above measurement information includes the location information of the user equipment 702 and the reception level of the cell measured by the user equipment 702, wherein the network standard type currently used by the user equipment 702 is the first network format;

The network device 701 is used to: obtain the measurement information reported by the user equipment 702; according to the above-mentioned acquired measurement information of the user equipment 702, combine the receiving levels of the same cell measured by different user equipment 702 in the same position to obtain The receiving level of each cell in each position; according to the receiving level of each cell in each position above, calculate the path loss of each cell in each position above; according to the second network standard co-sited with the first network standard transmit power and the path loss of each cell at each of the above positions, and estimate the level strength of each of the cells received by the user equipment using the second network standard at each of the above positions; wherein, the co-sited second network The system is in the same frequency band as the above-mentioned first network system and has the same antenna feeder engineering parameters.

It should be noted that the network device 701 in the embodiment of the present invention can be like the network device in the above-mentioned device embodiment, and can be used to realize all the technical solutions in the above-mentioned device embodiment, and the functions of its various functional modules can be implemented according to the above-mentioned method The method in the example is specifically implemented, and the specific implementation process may refer to the relevant description in the above-mentioned embodiments, and details are not repeated here.

It can be seen from the above that in the multi-network standard system in the embodiment of the present invention, the network device estimates the cell level strength of the co-sited another network standard according to the measurement information reported by the user equipment acquired by one network standard. , since the measurement information reported by the user equipment is not limited to road data, the cell level strength of another network system estimated by using the measurement information will contain more data points, improving the measurement accuracy of the cell level strength ; On the other hand, the data used in the present invention is reported by the user equipment through measurement, without spending a lot of manpower, material resources and financial resources. Therefore, the technical solution of the present invention has the characteristics of low cost.

The method for estimating cell level strength under a multi-network system provided by the present invention, related equipment and systems have been introduced in detail above. There will be changes in the scope of application. In summary, the content of this specification should not be construed as limiting the present invention.

Claims (25)

1. The cell level intensity estimation method under the multi-network system is characterized in that, comprising: The network device obtains the measurement information reported by the user equipment UE, the measurement information includes the location information of the UE and the reception level of the cell measured by the UE, wherein the network standard type currently used by the UE is the first network format; According to the acquired measurement information of the UE, combining the reception levels of the same cell measured by different UEs in the same position to obtain the reception level of each cell in each position; calculating the path loss of each cell at each location according to the reception level of each cell at each location; According to the transmit power of the second network standard co-located with the first network standard and the path loss of each cell in the respective positions, estimate the UE using the second network standard received at the respective positions The level strength of each cell; wherein, the second network standard co-located with the first network standard is in the same frequency band as the first network standard and has the same antenna feeder engineering parameters; Detecting whether there is a cell covered only by the second network standard within the preset range around each position, and if so, the level strength of the detected cell covered only by the second network standard is greater than or equal to the preset threshold, then, Correcting the estimated level strength of each cell received by the UE adopting the second network standard at each position by using the level strength of the cell covered only by the second network standard. 2. The method of claim 1, wherein, According to the receiving level of each cell in each position, calculate the path loss of each cell in each position, specifically: Utilize the formula Pu(xy, n)=Pilot Power(n)-U_Rxlev(xy, n) to obtain the path loss of each cell under each position, wherein, Pu(xy, n) in the formula represents the path loss under the position xy The path loss of cell n, where Pilot Power(n) represents the transmit power of cell n, where U_Rxlev(xy, n) represents the receiving level of cell n under position xy; According to the transmission power of the second network standard co-located with the first network standard and the path loss of each cell in each position, estimating the reception of the UE using the second network standard at the respective positions The level intensity of each cell to be obtained is specifically: Using the formula G_Rxlev(xy, n)=G_BTSPower-Pu(xy, n), the level strength of each cell received by the UE adopting the second network standard at each position is obtained, wherein, in the formula, G_Rxlev( xy, n) represents the level strength of the cell n received by the UE using the second network standard at position xy, where G_BTSPower represents the transmission of the second network standard co-located with the first network standard power, where Pu(xy, n) represents the path loss of cell n at position xy. 3. The method of claim 1, wherein, According to the receiving level of each cell in each position, calculate the path loss of each cell in each position, specifically: Use the formula Pu(xy, n)=Pilot Power(n)-U_Rxlev(xy, n)+L(n) to obtain the spatial path loss of each cell at each position, wherein, in the formula, Pu(xy, n ) represents the spatial path loss of cell n at position xy, where Pilot Power(n) represents the transmit power of cell n, where U_Rxlev(xy, n) represents the receiving level of cell n at position xy, L(n ) represents the antenna gain of cell n; According to the transmission power of the second network standard co-located with the first network standard and the path loss of each cell in each position, estimating the reception of the UE using the second network standard at the respective positions The receiving level of each cell to be received is specifically: Using the formula G_Rxlev(xy, n)=G_BTSPower-Pu(xy, n)+L'(n), the level strength of each cell received by the UE of the second network standard at each position is obtained, where , where G_Rxlev(xy, n) represents the level strength of the cell n received by the UE using the second network standard at position xy, where G_BTSPower represents the first network standard co-sited with the first network standard The transmit power of the second network standard, where Pu(xy, n) represents the spatial path loss of cell n at position xy, and where L'(n) represents the antenna gain of cell n after antenna feed adjustment. 4. The method according to any one of claims 1-3, characterized in that, After the estimating the level strength of each cell received by the UE adopting the second network standard at each location, it further includes: A geospatial feature library of the second network standard is constructed by using the obtained reception levels of the cells received by the UE adopting the second network standard at the respective locations. 5. The method according to any one of claims 1-3, characterized in that, The measurement information reported by the UE is: the measurement report measured by the UE based on the Assisted Global Positioning System AGPS technology or the minimum drive test MDT technology, or the DT data measured by the UE based on the drive test DT technology. 6. The method of claim 4, wherein, The measurement information reported by the UE is: the measurement report measured by the UE based on the Assisted Global Positioning System AGPS technology or the minimum drive test MDT technology, or the DT data measured by the UE based on the drive test DT technology. 7. The method according to any one of claims 1-3, wherein the combining the receiving levels of the same cell measured by different UEs in the same position comprises: Take the average value of the received levels of the same cell measured by different UEs in the same location. 8. The method according to claim 4, wherein the combining the receiving levels of the same cell measured by different UEs in the same position comprises: Take the average value of the received levels of the same cell measured by different UEs in the same location. 9. The method according to claim 5, wherein the combining the receiving levels of the same cell measured by different UEs in the same position comprises: Take the average value of the received levels of the same cell measured by different UEs in the same location. 10. The method according to claim 6, wherein the combining the receiving levels of the same cell measured by different UEs in the same position comprises: Take the average value of the received levels of the same cell measured by different UEs in the same location. 11. The method according to any one of claims 1-3, characterized in that, The type of the first network standard is: Universal Mobile Telecommunications System UMTS standard, or Long Term Evolution LTE standard; The type of the second network standard is: Global System for Mobile Communications GSM standard. 12. The method of claim 4, wherein, The type of the first network standard is: Universal Mobile Telecommunications System UMTS standard, or Long Term Evolution LTE standard; The type of the second network standard is: Global System for Mobile Communications GSM standard. 13. The method of claim 5, wherein, The type of the first network standard is: Universal Mobile Telecommunications System UMTS standard, or Long Term Evolution LTE standard; The type of the second network standard is: Global System for Mobile Communications GSM standard. 14. The method of claim 6, wherein, The type of the first network standard is: Universal Mobile Telecommunications System UMTS standard, or Long Term Evolution LTE standard; The type of the second network standard is: Global System for Mobile Communications GSM standard. 15. The method of claim 7, wherein, The type of the first network standard is: Universal Mobile Telecommunications System UMTS standard, or Long Term Evolution LTE standard; The type of the second network standard is: Global System for Mobile Communications GSM standard. 16. The method of claim 8, wherein, The type of the first network standard is: Universal Mobile Telecommunications System UMTS standard, or Long Term Evolution LTE standard; The type of the second network standard is: Global System for Mobile Communications GSM standard. 17. The method of claim 9, wherein, The type of the first network standard is: Universal Mobile Telecommunications System UMTS standard, or Long Term Evolution LTE standard; The type of the second network standard is: Global System for Mobile Communications GSM standard. 18. The method of claim 10, wherein, The type of the first network standard is: Universal Mobile Telecommunications System UMTS standard, or Long Term Evolution LTE standard; The type of the second network standard is: Global System for Mobile Communications GSM standard. 19. A network device, comprising: An acquiring unit, configured to acquire measurement information reported by a user equipment UE, where the measurement information includes location information of the UE and a reception level of a cell measured by the UE, wherein the network standard type currently adopted by the UE is the first network format; A preprocessing unit, configured to combine the reception levels of the same cell measured by different UEs in the same position according to the measurement information of the UE acquired by the acquisition unit, to obtain the reception levels of each cell in each position ; a calculation unit, configured to calculate the path loss of each cell at each location according to the reception level of each cell at each location; An estimating unit, configured to estimate, based on the transmit power of the second network standard co-located with the first network standard and the path loss of each cell in each location, estimating the UE adopting the second network standard in each The level strength of each cell received at the location; wherein, the co-sited second network standard is in the same frequency band as the first network standard and has the same antenna feeder engineering parameters; A detection unit, configured to detect whether there is a cell covered only by the second network standard within the preset range around each location; The estimation unit is further configured to: when the detection result of the detection unit is existence, and the detected level strength of the cell covered only by the second network standard is greater than or equal to a preset threshold, use the Correcting the estimated level strength of each cell received by the UE adopting the second network standard at each position by the level strength of the cell covered only by the second network standard. 20. The network device of claim 19, wherein: The calculation unit is specifically used to: use the formula Pu(xy, n)=Pilot Power(n)-U_Rxlev(xy,n) to obtain the path loss of each cell in each position, wherein, in the formula, Pu(xy , n) represents the path loss of cell n under position xy, where Pilot Power (n) represents the transmit power of cell n, and U_Rxlev (xy, n) represents the receiving level of cell n under position xy in the formula; The estimating unit is specifically configured to: use the formula G_Rxlev(xy, n)=G_BTSPower-Pu(xy,n) to obtain the power level of each cell received by the UE adopting the second network standard at each position Intensity, wherein, G_Rxlev(xy, n) in the formula represents the level strength of the cell n received by the UE adopting the second network standard at position xy, and G_BTSPower in the formula represents the power level of the cell co-located with the first network standard The transmit power of the second network standard, where Pu(xy, n) represents the path loss of cell n at position xy. 21. The network device of claim 19, wherein: The calculation unit is specifically configured to: use the formula Pu(xy,n)=Pilot Power(n)-U_Rxlev(xy,n)+L(n) to obtain the spatial path loss of each cell at each position, where , where Pu(xy, n) represents the spatial path loss of cell n at position xy, where Pilot Power(n) represents the transmit power of cell n, and where U_Rxlev(xy, n) represents cell n at position xy The receiving level of L(n) represents the antenna gain of cell n; The estimating unit is specifically configured to: use the formula G_Rxlev(xy, n)=G_BTSPower-Pu(xy, n)+L'(n) to obtain the information received by the UE of the second network standard at each location The level strength of each cell, wherein G_Rxlev(xy, n) in the formula represents the level strength of the cell n received by the UE adopting the second network standard at position xy, and G_BTSPower in the formula represents the level strength of the first The transmission power of the base station antenna of the second network standard in which the network standard co-sites, where Pu(xy, n) represents the spatial path loss of cell n at position xy, and where L'(n) represents cell n in the sky Feed the adjusted antenna gain. 22. The network device according to any one of claims 19-21, characterized in that, The network equipment also includes: A construction unit configured to construct a geospatial feature library of the second network standard by using the reception level of each cell received by the UE adopting the second network standard obtained by the estimation unit at each location. 23. The network device according to any one of claims 19-21, characterized in that, The preprocessing unit is specifically configured to: take an average of the level strengths of the same cell measured by different UEs in the same position according to the measurement information of the UE acquired by the acquiring unit. 24. The network device of claim 22, wherein: The preprocessing unit is specifically configured to: take an average of the level strengths of the same cell measured by different UEs in the same position according to the measurement information of the UE acquired by the acquiring unit. 25. A multi-network standard system, characterized in that it comprises: network equipment and at least one user equipment; Wherein, the user equipment is used to: report measurement information, the measurement information includes the location information of the user equipment and the reception level of the cell measured by the user equipment, wherein the network standard currently adopted by the user equipment The type is the first network standard; The network device is configured to: acquire the measurement information reported by the user equipment; combine the reception levels of the same cell measured by different user equipments at the same location according to the acquired measurement information of the user equipment, Obtain the receiving level of each cell in each position; calculate the path loss of each cell in each position according to the receiving level of each cell in each position; The transmit power of the second network standard and the path loss of each cell at each location are estimated to estimate the level strength of each cell received by the user equipment using the second network standard at each location; wherein, the The second network standard of the co-site is in the same frequency band as the first network standard and has the same antenna engineering parameters; detect whether there is a network that is only covered by the second network standard within the preset range around each location If the cell exists, and the detected level strength of the cell covered only by the second network standard is greater than or equal to a preset threshold, then use the cell covered only by the second network standard modify the estimated level strength of each cell received by the UE adopting the second network standard at each location.