WO2019191951A1

WO2019191951A1 - Network planning method and device

Info

Publication number: WO2019191951A1
Application number: PCT/CN2018/081952
Authority: WO
Inventors: 吴国亮; 樊华; 王小鹏
Original assignee: 华为技术有限公司
Priority date: 2018-04-04
Filing date: 2018-04-04
Publication date: 2019-10-10

Abstract

The embodiments of the present application provide a network planning method and device, said method comprising: a base station sending a first reference signal to a user equipment (UE), and receiving a first level value returned by said UE according to said first reference signal; the base station receiving a second reference signal sent by the UE, and determining a second level value corresponding to said second reference signal; according to the first level value and the second level value, determining a difference between each remote radio unit (RRU) in a single-frequency network (SFN) cell; according to said difference, determining the difference between the levels of each RRU of said SFN cell; re-dividing the SFN cell according to the level difference; after the downlink signal level of the UE received by each RRU has been obtained, it is unnecessary to obtain the actual transmission power and power headroom information of the UE, and it is unnecessary to calculate space loss in order to obtain the level difference between the RRUs in the SFN, thus a reference is provided for re-division of the SFN cell.

Description

Network planning method and device

Technical field

The present application relates to the field of communications technologies, and in particular, to a network planning method and device.

Background technique

In the Long Term Evolution (LTE) system, the same-frequency deployment causes severe interference between LTE cells, especially at the edge of the cell. The multi-radio radio unit (RRU) common cell technology is also called Single Frequence Netword (SFN) refers to a technology in which a plurality of physical cells covered by radio modules working in the same frequency band are combined into one cell in one geographical area, and each radio frequency is pulled in the SFN cell. The wireless communication area covered by the remote unit is called a “physical cell”. After the combination, each physical cell uses the same physical cell identifier (PCI).

When planning and deploying an SFN network for the first time, it is usually based on the same-frequency measurement report (Measid3, A3) of the measurement report (MR) between the cells, and the interference intensity between the cells and the user distribution are counted, so that the interference is the strongest. The cell with the largest proportion of users in the interference zone will preferentially perform SFN merging.

However, after a period of time, the distribution of the user may change, or a new frequency point is added, and the SFN cell needs to be re-planned. Because the user equipment (User Equipment, UE) is on the same PCI cell, The combined receiving level can only be measured. Therefore, between the normal cell and the SFN cell, or between the SFN cell and the SFN cell, the A3 measurement mode that directly uses the MR is no longer suitable for the SFN cell after the network change. The actual interference and user distribution between RRUs cannot be accurately counted, and thus it is impossible to provide reference for re-planning SFN cells.

Summary of the invention

The embodiment of the present invention provides a network planning method and device, which can not accurately calculate the actual interference and user distribution between RRUs after the network changes, and thus cannot provide a reference for re-planning the SFN cell.

In a first aspect, an embodiment of the present application provides a network planning method, including:

The base station sends a first reference signal to the user equipment UE, and receives a first level value returned by the UE according to the first reference signal; the base station receives the second reference signal sent by the UE, and determines the second reference a second level value corresponding to the signal; determining, according to the first level value and the second level value, a difference between each radio remote unit RRU in the SFN cell of the single frequency point network; Determining a level difference between each of the RRUs of the SFN cell; and re-dividing the SFN cell according to the level difference. After obtaining the level of the downlink signal received by the UE in each RRU, it is not necessary to acquire the actual transmit power and power headroom information of the UE, and the level difference between the RRUs in the SFN can be obtained without calculating the spatial loss. A reference can be provided for the re-division of the SFN cell.

In a possible design, the determining, according to the first level value and the second level value, a difference between each radio remote unit RRU in a single frequency point network SFN cell, including: according to the UE The received power, the transmit power of the UE, the received power of the RRU, and the transmit power of the RRU determine a difference between any two of the RRUs in the SFN cell. The difference between the RRUs can be accurately calculated according to the received power of the UE, the transmit power of the UE, the received power of the RRU, and the transmit power of the RRU, so that the accuracy of the re-division of the SFN cell can be improved.

In a possible design, the method further includes: determining, by the RRU, that the level difference between any two of the RRUs in the SFN cell is less than a set threshold, and the ratio of the RRU in the SFN cell. The RRUs are sorted according to the size of the scale value. Comparing the level difference between the RRUs with the set threshold and sorting the comparison results can improve the accuracy of the re-division of the SFN cell.

In a possible design, the re-sorting the SFN cell according to the level difference includes: performing SFN cell division on the RRU according to the sorted priority. Re-division of the SFN cell according to the prioritized priority can improve the accuracy of re-division of the SFN cell.

In a possible design, the method further includes: determining a level difference between each of the RRUs of the normal cell and the SFN cell according to the first level value and the second level value; The SFN cell is re-divided by a level difference; wherein the UE is in the normal cell or in the SFN cell. According to the level difference between the RRUs of the normal cell and the SFN cell, reference may be provided for re-division of the SFN cell.

In a possible design, the method further includes: determining a level difference between each of the RRUs between the SFN cell and the SFN cell according to the first level value and the second level value The SFN cell is re-divided according to the level difference; wherein the UE is in any of the SFN cells. According to the level difference between each RRU of the SFN cell and the SFN cell, reference may be provided for re-division of the SFN cell.

In a second aspect, the embodiment of the present application provides a network planning device, including:

a transceiver module, configured to send a first reference signal to the user equipment UE, and receive a first level value returned by the UE according to the first reference signal;

The transceiver module is further configured to receive a second reference signal sent by the UE;

a processing module, configured to determine a second level value corresponding to the second reference signal;

The processing module is further configured to determine, according to the first level value and the second level value, a difference between each radio remote unit RRU in a single frequency point network SFN cell;

The processing module is further configured to determine, according to the difference, a level difference between each RRU of the SFN cell;

The processing module is further configured to re-divide the SFN cell according to the level difference.

In a possible design, the processing module is further configured to determine, according to the received power of the UE, the transmit power of the UE, the received power of the RRU, and the transmit power of the RRU, any two of the SFN cells. The difference between the RRUs.

In a possible design, the processing module is further configured to determine that the RRU of the level difference between any two of the RRUs in the SFN cell is less than a set threshold, and the RRU in the SFN cell a scale value; sorting the RRUs according to the size of the scale value.

In a possible design, the processing module is further configured to perform SFN cell division on the RRU according to the sorted priority.

In a possible design, the processing module is further configured to determine, according to the first level value and the second level value, a level difference between each RRU of the normal cell and the SFN cell; The level difference re-divides the SFN cell;

The UE is in the normal cell or in the SFN cell.

In a possible design, the processing module is further configured to determine, according to the first level value and the second level value, an electrical connection between each of the RRUs between the SFN cell and the SFN cell. Adjusting the SFN cell according to the level difference;

The UE is in any of the SFN cells.

In a third aspect, the embodiment of the present application provides a network planning device, including:

a transceiver, configured to send a first reference signal to the user equipment UE, and receive a first level value returned by the UE according to the first reference signal;

The transceiver is further configured to receive a second reference signal sent by the UE, and determine a second level value corresponding to the second reference signal;

a processor, configured to determine, according to the first level value and the second level value, a difference between each radio remote unit RRU in a single frequency point network SFN cell; determining the SFN according to the difference a level difference between each of the RRUs of the cell; the SFN cell is re-divided according to the level difference.

In a possible design, the processor is configured to determine any two in the SFN cell according to the received power of the UE, the transmit power of the UE, the received power of the RRU, and the transmit power of the RRU. The difference between the RRUs.

In a possible design, the processor is further configured to determine that the RRU of a level difference between any two of the RRUs in the SFN cell is less than a set threshold, and the RRU in the SFN cell a scale value; sorting the RRUs according to the size of the scale value.

In a possible design, the processor is configured to perform SFN cell division on the RRU according to the ordered priority.

In a possible design, the processor is further configured to determine, according to the first level value and the second level value, a level difference between each RRU of the normal cell and the SFN cell; The level difference re-divides the SFN cell;

The UE is in the normal cell or in the SFN cell.

In a possible design, the processor is further configured to determine, according to the first level value and the second level value, an electrical connection between each of the RRUs between the SFN cell and the SFN cell. Adjusting the SFN cell according to the level difference;

The UE is in any of the SFN cells.

In a fourth aspect, an embodiment of the present application provides a computer program product comprising instructions, when the instructions are run on a computer, causing the computer to perform the method of any one of the first aspects.

In a fifth aspect, the embodiment of the present application provides a computer readable storage medium, where the computer readable storage medium stores a computer program, and when the computer program is executed by a processor, method.

In a sixth aspect, an embodiment of the present application provides a network planning device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the computer program: first aspect The method of any of the preceding claims.

In a seventh aspect, an embodiment of the present application provides an apparatus, including a processing element and a storage element, where the storage element is configured to store a program, when the program is invoked by the processing element, to perform any of the first aspect Said method.

In the network planning solution provided by the embodiment, the base station sends a first reference signal to the user equipment UE, and receives a first level value returned by the UE according to the first reference signal; the base station receives the second reference signal sent by the UE, and determines the first a second level value corresponding to the second reference signal; determining, according to the first level value and the second level value, a difference between each radio remote unit RRU in the SFN cell of the single frequency point network; determining, according to the difference, each SFN cell The level difference between the RRUs; the SFN cell is re-divided according to the level difference, and after obtaining the level of the downlink signal received by the UE in each RRU, it is not required to acquire the actual transmit power and power headroom information of the UE, and The level difference between each RRU in the SFN can be obtained without calculating the spatial loss, and provides a reference for the re-division of the SFN cell.

DRAWINGS

FIG. 1 is an application scenario diagram of a network planning method according to an embodiment of the present disclosure;

FIG. 2 is a signaling interaction diagram of a network planning method according to an embodiment of the present disclosure;

FIG. 3 is a first scenario diagram of a network planning method according to an embodiment of the present disclosure;

FIG. 4 is a signaling interaction diagram of another network planning method according to an embodiment of the present disclosure;

FIG. 5 is a second scenario diagram of a network planning method according to an embodiment of the present disclosure;

FIG. 6 is a signaling interaction diagram of still another network planning method according to an embodiment of the present application;

FIG. 7 is a third scenario diagram of a network planning method according to an embodiment of the present application;

FIG. 8 is a schematic structural diagram of a network planning device according to an embodiment of the present disclosure;

FIG. 9 is a schematic structural diagram of hardware of a network planning device according to an embodiment of the present disclosure.

detailed description

The technical solutions in the embodiments of the present application are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present application.

FIG. 1 is a schematic diagram of an application scenario of a network planning method according to an embodiment of the present disclosure. Referring to FIG. 1, a base station may include one or more cells (ie, may include one or more networks), and user equipment may pass any of the base stations. A cell and a base station establish a communication connection relationship, and the network planning method is mainly an interaction between the user equipment UE and the base station, where the user equipment may be, but is not limited to, a smart phone, a tablet computer, etc., which is provided by the embodiment of the present application. The network planning method may be applicable to a scenario in which an SFN cell exists in a base station, and may be specifically classified into three scenarios, one of which is a case of a single SFN cell, the other is a case where a normal cell is adjacent to an SFN cell, and the third is an SFN. If the cell is adjacent to the SFN cell, the network may change over time. In this case, the SFN cell needs to be re-planned. In this embodiment, the uplink signal is obtained according to the foregoing three scenarios. a level value of a signal of the base station and a downlink signal (a signal transmitted by the base station to the UE), and determining a level between each RRU of the SFN cell according to the level value Of SFN cell re-classified according to level difference, please refer to the specific embodiments described below.

FIG. 2 is a signaling interaction diagram of a network planning method according to an embodiment of the present disclosure. Referring to FIG. 2, the method includes:

S201. The base station sends a first reference signal to the user equipment UE.

S202. The base station receives a first level value returned by the UE according to the first reference signal.

S203. The UE sends a second reference signal to the base station.

S204. The base station determines a second level value corresponding to the second reference signal.

This embodiment is a case of a single SFN cell, that is, the UE is in the SFN cell and there is no common cell and SFN cell in the surrounding area, and the SFN cell includes multiple RRUs. In this embodiment, three RRUs in the SFN cell are taken as an example. For example, referring to FIG. 3, the UE may be, but is not limited to, a mobile device, such as a smart phone.

The base station sends the first reference signal to the UE, where the base station sends the A3 MR measurement to the UE of the SFN cell, and the UE returns a first level value according to the first reference signal; the UE sends the second reference signal to the base station, and the second reference The signal may be: a Sounding Reference Signal (SRS), that is, an SRS measurement, and the base station determines a second level value corresponding to the SRS based on the received SRS.

S205. The base station determines, according to the first level value and the second level value, a difference between each radio remote unit RRU in the SFN cell of the single frequency point network.

S206. Determine a level difference between each RRU of the SFN cell according to the difference.

Specifically, the difference between any two RRUs in the SFN cell is determined according to the received power of the UE, the transmit power of the UE, the received power of the RRU, and the transmit power of the RRU.

E.g:

The frequency of the uplink signal (first reference signal) is f1, the frequency of the downlink signal (second reference signal) is f2, and the SRS levels received by the UE at RRU1, RRU2, and RRU3 are RSRPul1 dBm, RSRPul2 dBm, and RSRPul3, respectively. dBm. The distances from the UE to RRU1, RRU2, and RRU3 are D1Km, D2Km, and D3Km, respectively. The UE transmit power is Pue mW, RRU1, RRU2, and RRU3 transmit powers are Prru1 mW, Prru2 mW, and Prru3 mW, respectively. The uplink loss of the UE to RRU1, RRU2, and RRU3 is PLul1 dB, PLul2 dB, and PLul3 dB, respectively.

It is assumed that the level of the SFN cell received by the UE in the downlink is RSRPdl dbm, and the received powers from RRU1, RRU2, and RRU3 are RSRPdl1 dBm, RSRPdl2 dBm, and RSRPdl3 dBm, respectively. The downlink loss of RRU1, RRU2, and RRU3 to UE is PLdl1 dB, PLdl2 dB, and PLdl3 dB, respectively.

Upstream:

10log(Pue)-PLul1(dB)=10log(Pue)-20log(f1)-20log(D1)-32.4=RSRPul1

10log(Pue)-PLul2(dB)=10log(Pue)-20log(f1)-20log(D2)-32.4=RSRPul2

10log(Pue)-PLul3(dB)=10log(Pue)-20log(f1)-20log(D3)-32.4=RSRPul3

Downstream:

10log(Prru1)-PLdl1(dB)=10log(Prru1)-20log(f2)-20log(D1)-32.4=RSRPdl1

10log(Prru2)-PLdl2(dB)=10log(Prru2)-20log(f2)-20log(D2)-32.4=RSRPdl2

10log(Prru3)-PLdl3(dB)=10log(Prru3)-20log(f2)-20log(D3)-32.4=RSRPdl3

10e(RSRPdl1/10)+10e(RSRPdl2/10)+10e(RSRPdl3/10)≈10e(RSRPdl/10)

Combine the above equations to get:

RSRPdl1-10log(Pue)=10log(Prru1)-20log(f2)+20log(f1)+RSRPul1=W1

RSRPdl2-10log(Pue)=10log(Prru2)-20log(f2)+20log(f1)+RSRPul2=W2

RSRPdl3-10log(Pue)=10log(Prru3)-20log(f2)+20log(f1)+RSRPul3=W3

RSRPdl1-W1=RSRPdl2-W2=RSRPdl3-W3

In summary,

RSRPdl2=RSRPdl1-W1+W2

RSRPdl3=RSRPdl1-W1+W3

Bring the following formula:

10e(RSRPdl1/10)+10e(RSRPdl2/10)+10e(RSRPdl3/10)≈10e(RSRPdl/10)

Available:

RSRPdl1=RSRPdl-10log(1+10e(W2-W1)/10+10e(W3-W1)/10)

RSRPdl2=RSRPdl-10log(1+10e(W2-W1)/10+10e(W3-W1)/10)+W2-W1

RSRPdl3=RSRPdl-10log(1+10e(W2-W1)/10+10e(W3-W1)/10)+W3-W1

Further, the feature quantities W1, W2, W3 can be calculated:

W1=10log(Prru1)-20log(f2)+20log(f1)+RSRPul1

W2=10log(Prru2)-20log(f2)+20log(f1)+RSRPul2

W3=10log(Prru3)-20log(f2)+20log(f1)+RSRPul3

Determine the level difference between RRU1, RRU2, and RRU2 as:

RSRPdl1=RSRPdl-10log(1+10e(W2-W1)/10+10e(W3-W1)/10)

RSRPdl2=RSRPdl-10log(1+10e(W2-W1)/10+10e(W3-W1)/10)+W2-W1

RSRPdl3=RSRPdl-10log(1+10e(W2-W1)/10+10e(W3-W1)/10)+W3-W1

For example, the RRU transmit power is 20W, f1=2570f2=2690, and the received SRS reception levels on the RRU are -110dBm, -115dBm, -130dBm, and the downlink cell reception level is -80dBm.

Calculated as W2-W1=-5, W3-W1=-20

RSRPdl1≈-80dBm

RSRPdl2≈-85dBm

RSRPdl3≈-100dBm

S207. Re-divide the SFN cell according to the level difference.

Specifically, the RRU of the level difference between any two RRUs in the SFN cell is smaller than the RRU of the set threshold, and the RRU is sorted according to the size of the proportional value, and the RRU is performed according to the scale value. Sort.

For example, set a threshold A (such as 85dBm), count any two RRU to the UE whose level difference is less than the threshold A, calculate the proportion of all reported MR, record it as C, sort according to the size of C value, sort in The combined overlap of the first two RRUs is greater than the combination of the subsequent RRUs, and the previous RRUs are preferentially selected for SFN combining according to the sorting result.

The network planning method provided by the embodiment, the first reference signal is sent by the base station to the user equipment UE, and the first level value returned by the UE according to the first reference signal is received; the base station receives the second reference signal sent by the UE, and determines the first a second level value corresponding to the second reference signal; determining, according to the first level value and the second level value, a difference between each radio remote unit RRU in the SFN cell of the single frequency point network; determining, according to the difference, each SFN cell The level difference between the RRUs; the SFN cell is re-divided according to the level difference, and after obtaining the level of the downlink signal received by the UE in each RRU, it is not required to acquire the actual transmit power and power headroom information of the UE, and The level difference between each RRU in the SFN can be obtained without calculating the spatial loss, and provides a reference for the re-division of the SFN cell.

FIG. 4 is a signaling interaction diagram of another network planning method according to an embodiment of the present disclosure. Referring to FIG. 4, the method includes:

S401. The base station sends a first reference signal to the user equipment UE.

S402. The base station receives a first level value returned by the UE according to the first reference signal.

S403. The UE sends a second reference signal to the base station.

S404. The base station determines a second level value corresponding to the second reference signal.

S405. The base station determines a level difference between each RRU of the normal cell and the SFN cell according to the first level value and the second level value.

S406. Perform re-division of the SFN cell according to the level difference.

In this embodiment, the common cell and the SFN cell exist at the same time, that is, the UE may be in the SFN cell or the UE is in the normal cell, that is, on the basis of the foregoing SFN cell, add a common cell; The cell has one RRU, and the SFN cell has three RRUs. Here, there are two cases. When the UE is in a normal cell, the receiving signal of each downlink RRU in the SFN cell can be obtained through the above calculation formula. The SFN cell is re-divided by calculating the level difference between the RRUs in the normal cell and the RRUs in the SFN cell. When the UE is in the SFN cell, the level difference between the RRUs in the SFN cell and the RRU in the normal cell can be obtained, and the SFN cell can be re-divided. For the specific steps, refer to the foregoing description, and no further details are provided herein.

The network planning method provided by the embodiment, the first reference signal is sent by the base station to the user equipment UE, and the first level value returned by the UE according to the first reference signal is received; the base station receives the second reference signal sent by the UE, and determines the first a second level value corresponding to the second reference signal; determining a level difference between each RRU of the normal cell and the SFN cell according to the first level value and the second level value; and re-dividing the SFN cell according to the level difference, After obtaining the level of the downlink signal received by each RRU, the UE does not need to obtain the actual transmit power and power headroom information of the UE, and the level difference between the RRUs in the SFN can be obtained without calculating the spatial loss. The re-division of the SFN cell provides a reference.

FIG. 6 is a signaling interaction diagram of still another network planning method according to an embodiment of the present application. Referring to FIG. 6, the method includes:

S601. The base station sends a first reference signal to the user equipment UE.

S602. The base station receives a first level value returned by the UE according to the first reference signal.

S603. The UE sends a second reference signal to the base station.

S604. The base station determines a second level value corresponding to the second reference signal.

S605. Determine a level difference between each RRU between the SFN cell and the SFN cell according to the first level value and the second level value.

S606. Re-divide the SFN cell according to the level difference.

In this embodiment, the SFN cell and the SFN cell exist simultaneously, that is, the UE is in any SFN cell, that is, the SFN cell is added on the basis of the foregoing SFN cell; referring to FIG. 7, the SFN cell has three RRUs. Through the above calculation formula, the receiving level of the downlink signal of each RRU in the SFN cell can be obtained, and then the level difference between the RRUs in the SFN cell and the RRUs in the SFN cell can be calculated, so that the SFN cell can be re-divided. For the steps, reference may be made to the above description, and details are not described herein.

The solution of the embodiment of the present application is introduced from the perspective of interaction between the base station and the UE. It can be understood that, in order to implement the above functions, the terminal includes corresponding hardware structures and/or software modules for performing various functions. Those skilled in the art will readily appreciate that the present application can be implemented in a combination of hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present application.

The embodiment of the present application may divide a functional unit into a base station according to the foregoing method example. For example, each functional unit may be divided according to each function, or two or more functions may be integrated into one processing unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit. It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logical function division. In actual implementation, there may be another division manner.

FIG. 8 is a schematic structural diagram of a network planning device according to an embodiment of the present disclosure. As shown in FIG. 8 , the device 800 specifically includes the following units:

The transceiver module 801 is configured to send a first reference signal to the user equipment UE, and receive a first level value returned by the UE according to the first reference signal;

The transceiver module 801 is further configured to receive a second reference signal sent by the UE;

The processing module 802 is configured to determine a second level value corresponding to the second reference signal;

The processing module 802 is further configured to determine, according to the first level value and the second level value, a difference between each radio remote unit RRU in a single frequency point network SFN cell;

The processing module 802 is further configured to determine, according to the difference, a level difference between each RRU of the SFN cell;

The processing module 802 is further configured to re-divide the SFN cell according to the level difference.

Optionally, the processing module 802 is further configured to determine, according to the received power of the UE, the transmit power of the UE, the received power of the RRU, and the transmit power of the RRU, any two of the SFN cells. The difference between the RRUs.

Optionally, the processing module 802 is further configured to determine that the RRU of the level difference between any two of the RRUs in the SFN cell is less than a set threshold, and the proportion of the RRU in the SFN cell. a value; sorting the RRUs according to the size of the scale value.

Optionally, the processing module 802 is further configured to perform SFN cell division on the RRU according to the sorted priority.

Optionally, the processing module 802 is further configured to determine, according to the first level value and the second level value, a level difference between each RRU of the normal cell and the SFN cell; Resolving the SFN cell by level difference;

The UE is in the normal cell or in the SFN cell.

Optionally, the processing module 802 is further configured to determine, according to the first level value and the second level value, a level between each of the RRUs between the SFN cell and the SFN cell. Poorly dividing the SFN cell according to the level difference;

The UE is in any of the SFN cells.

The network planning device provided in this embodiment can be used as an execution body in the network planning method shown in Figure 2-7, and all the steps in the method shown in Figure 2-7 are performed to implement the technical effects of the method shown in Figure 2-7. For details, please refer to the related description of the parts in Figure 2-7, and details are not described herein.

FIG. 9 is a schematic structural diagram of hardware of a network planning device according to an embodiment of the present disclosure. As shown in FIG. 9, the device includes a processor 910, a memory 920, and a transceiver 930.

The processor 910 can be a central processing unit (CPU), or a combination of a CPU and a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a general array logic (GAL) or Any combination thereof.

Memory 920 is used to store various applications, operating systems and data. The memory 620 can transfer the stored data to the processor 910. The memory 920 may include a volatile memory, a nonvolatile random access memory (NVRAM), a phase change RAM (PRAM), and a magnetoresistive random memory. Take memory (English: mageroresistive RAM, MRAM), etc., such as at least one disk storage device, electrically erasable programmable read-only memory (EEPROM), flash memory device, such as anti-flash or flash memory ( NOR flash memory) or NAND flash memory, semiconductor devices, such as solid state disk (SSD). The memory 1020 may also include a combination of the above types of memories.

The transceiver 930 is configured to transmit and/or receive data, and the transceiver 930 can be an antenna or the like.

The working process of each device is as follows:

The transceiver 930 is configured to send a first reference signal to the user equipment UE, and receive a first level value returned by the UE according to the first reference signal;

The transceiver 930 is further configured to receive a second reference signal sent by the UE, and determine a second level value corresponding to the second reference signal;

The processor 910 is configured to determine, according to the first level value and the second level value, a difference between each radio remote unit RRU in a single frequency point network SFN cell; a level difference between each of the RRUs of the SFN cell; the SFN cell is re-divided according to the level difference.

Optionally, the processor 910 is configured to determine, according to the received power of the UE, the transmit power of the UE, the received power of the RRU, and the transmit power of the RRU, any two locations in the SFN cell. The difference between the RRUs.

Optionally, the processor 910 is further configured to determine that the RRU of the level difference between any two of the RRUs in the SFN cell is less than a set threshold, and the proportion of the RRU in the SFN cell. a value; sorting the RRUs according to the size of the scale value.

Optionally, the processor 910 is configured to perform SFN cell division on the RRU according to the sorted priority.

Optionally, the processor 910 is further configured to determine, according to the first level value and the second level value, a level difference between each RRU of the normal cell and the SFN cell; Resolving the SFN cell by level difference;

The UE is in the normal cell or in the SFN cell.

Optionally, the processor 910 is further configured to determine, according to the first level value and the second level value, a level between each of the RRUs between the SFN cell and the SFN cell. Poorly dividing the SFN cell according to the level difference;

The UE is in any of the SFN cells.

Those skilled in the art should further appreciate that the elements and steps of the examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both, in order to clearly illustrate hardware and software. Interchangeability, the composition and steps of the various examples have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present application.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, all or part of the technical solution of the present application may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions for causing a computer device (which may be a personal computer, The server, or network device, etc.) performs all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes: a flash disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like. The medium of the program code.

The above description is only a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto, and any person skilled in the art can easily think of changes or within the technical scope disclosed in the present application. Replacement should be covered by the scope of this application. Therefore, the scope of protection of the present application should be determined by the scope of protection of the claims.

Claims

A network planning method, including:

The base station sends a first reference signal to the user equipment UE, and receives a first level value returned by the UE according to the first reference signal;

Receiving, by the base station, the second reference signal sent by the UE, and determining a second level value corresponding to the second reference signal;

Determining, according to the first level value and the second level value, a difference between each radio remote unit RRU in the SFN cell of the single frequency point network;

Determining, according to the difference, a level difference between each RRU of the SFN cell;

The SFN cell is re-divided according to the level difference.
The method according to claim 1, wherein the determining the difference between each radio remote unit RRU in the SFN cell of the single frequency point network according to the first level value and the second level value ,include:

Determining a difference between any two of the RRUs in the SFN cell according to the received power of the UE, the transmit power of the UE, the received power of the RRU, and the transmit power of the RRU.
The method according to claim 1 or 2, wherein the method further comprises:

Determining, by the RRU, that the level difference between any two of the RRUs in the SFN cell is less than a set threshold, and the ratio of the RRUs in the SFN cell;

The RRUs are sorted according to the size of the scale value.
The method according to claim 3, wherein the re-dividing the SFN cell according to the level difference comprises:

The SFN cell division is performed on the RRU according to the sorted priority.
The method according to any one of claims 1 to 4, wherein the method further comprises:

Determining, according to the first level value and the second level value, a level difference between each RRU of the normal cell and the SFN cell;

Re-dividing the SFN cell according to the level difference;

The UE is in the normal cell or in the SFN cell.
The method of any of claims 1-5, wherein the method further comprises:

Determining, according to the first level value and the second level value, a level difference between each of the RRUs between the SFN cell and the SFN cell;

Re-dividing the SFN cell according to the level difference;

The UE is in any of the SFN cells.
A network planning device, including:

a transceiver, configured to send a first reference signal to the user equipment UE, and receive a first level value returned by the UE according to the first reference signal;

The transceiver is further configured to receive a second reference signal sent by the UE, and determine a second level value corresponding to the second reference signal;

a processor, configured to determine, according to the first level value and the second level value, a difference between each radio remote unit RRU in a single frequency point network SFN cell; determining the SFN according to the difference a level difference between each of the RRUs of the cell; the SFN cell is re-divided according to the level difference.
The device according to claim 7, wherein the processor is configured to determine, according to the received power of the UE, the transmit power of the UE, the received power of the RRU, and the transmit power of the RRU. The difference between any two of the RRUs in the SFN cell.
The device according to claim 7 or 8, wherein the processor is further configured to determine that the RRU of the level difference between any two of the RRUs in the SFN cell is less than a set threshold. a ratio of the RRUs in the SFN cell; sorting the RRUs according to the size of the scale value.
The device according to claim 9, wherein the processor is configured to perform SFN cell division on the RRU according to the sorted priority.
The device according to any one of claims 7 to 10, wherein the processor is further configured to determine, according to the first level value and the second level value, a common cell and each of the SFN cells. a level difference between the RRUs; re-dividing the SFN cell according to the level difference;

The UE is in the normal cell or in the SFN cell.
The device according to any one of claims 7-11, wherein the processor is further configured to determine the SFN cell and the SFN according to the first level value and the second level value. a level difference between each of the RRUs between cells; re-dividing the SFN cell according to the level difference;

The UE is in any of the SFN cells.
A network planning device, comprising: a memory, a processor, and a computer program stored in the memory and operable on the processor, the processor executing the computer program to implement any one of claims 1-6 The method described.
A computer program product comprising instructions, wherein when said instructions are run on a computer, said computer is caused to perform the method of any of claims 1-6.
A computer readable storage medium, wherein the computer readable storage medium stores a computer program, the computer program being executed by a processor to implement the method of any of claims 1-6.