TWI520631B - Cellular mobile network dynamic communication quality analysis method - Google Patents

Description

Honeycomb mobile network dynamic communication quality analysis method

The invention relates to a method for analyzing the dynamic communication quality of a mobile network, in particular to an analysis method for dynamic communication quality of a CDMA/OFDMA cellular mobile network.

Code Division Multiple Access (CDMA)/Orthogonal Frequency-Division Multiple Access (OFDMA) is deployed in the early stage of the deployment of mobile networks. The telecommunications carrier will first set the network communication quality target, such as the energy of the wide band code division multiple access (WCDMA) system divided by the band power density (Ratio of energy per modulating bit to the noise spectral Density, abbreviated as: Ec/No) value, and then based on the network communication quality target to carry out coverage calculation for the deployment of the base station.

However, with the increase in the number of users, changes in user behavior, and changes in terrain and terrain, the quality of network communication in each base station needs to be changed, which in turn affects the effective coverage of the base stations. Therefore, the telecom operators provide Excellent communication services must immediately and effectively grasp the dynamic communication quality changes of each base station.

In order to grasp the coverage of the cells in the whole base station, the road test method or the Key Performance Indicators (KPI) value of the network is traditionally used to obtain the communication quality data of the communication cell base station, but the road test Way can only get the bureau The communication quality information of the flat roads, so if the road test information is used in the network maintenance and optimization decision, there will be a partial problem. In addition, the road test also requires a lot of manpower and time, using the network KPI value due to Only statistical average results of at least one hour can be obtained, so it is easy to produce technical problems in which communication quality is diluted. It can be seen that there are still many shortcomings in the above-mentioned methods of use, which is not a good method, but needs to be improved.

In order to solve the technical problems of the prior art, one object of the present invention is to provide a method for measuring the dynamic communication quality of a cellular mobile network to solve the problems of the prior art road test method.

To achieve the above purpose, the present invention provides a cellular mobile communication network dynamic communication quality analysis method, which is applied to a cellular mobile communication network system, and includes the following steps. First, the signaling analyzer is in the access network and the core network. The channel captures signaling information, and the foregoing access network and the core network are configured with a plurality of communication cells. Then, the traffic tracking mode is started according to the content of the signaling information, so that the mobile network measurement report signaling is extracted from each of the plurality of users located in the communication cell. Finally, one of the communication cells is assigned as a target communication cell, and one of the communication cells adjacent to the target communication cell or a combination of two or more of the communication cells is used to access the matching mobile network measurement report signaling, and the mobile network is detected. The measurement report signaling performs a numerical analysis to set a dynamic communication quality change information.

In summary, the present invention analyzes the measurement report network signaling content of all the user terminals of each communication cell through a long-term monitoring mobile network's Protocol Analyzer. The communication quality of communication cells. It not only improves the shortcomings of using the road test method, but also takes a lot of manpower and time. The road KPI value also improves the reliability of the test information source, and the dynamic communication quality obtained by this method can be used to calculate the changes covered by the actual signal of individual cellular cells, and can provide the optimization of the telecommunication operator's maintenance base station. And evaluation.

1‧‧‧Hive mobile communication network system

10‧‧‧ Back-end central control computer device

11‧‧‧Signal Analyzer

13‧‧‧Mobile switching center installation

132‧‧‧Iu interface

15‧‧‧Wireless Network Controller

152‧‧‧Iub interface

154‧‧‧Iur interface

17‧‧‧Communication cell base station

19‧‧‧ Client

2‧‧‧Communication cells

21‧‧‧Target communication cells

23‧‧‧Neighboring communication cells

231‧‧‧First proximity communication cell

233‧‧‧Second adjacent communication cell

A31‧‧‧ initial range

A33‧‧‧Adjustment range

S11~S15‧‧‧Steps

FIG. 1 is a flow chart of a method for analyzing quality of a mobile communication network in a cellular mobile network according to the present invention.

Figure 2 is a schematic diagram of a system in accordance with an embodiment of the present invention.

FIG. 3 is a schematic diagram of a communication cell measurement report process according to an embodiment of the present invention; and FIG. 4 is a schematic diagram showing changes in communication coverage of a WCDMA system according to an embodiment of the present invention.

The specific embodiments are described below to illustrate the embodiments of the invention, but are not intended to limit the scope of the invention.

Please refer to FIG. 1 , which is a flowchart of a method for analyzing quality of a mobile communication network in a cellular mobile network according to the present invention. The method is applied to a cellular mobile communication network system, and the cellular mobile communication network system is controlled by a back-end central control computer. The device is configured for management and control and includes the following steps:

S11: The signaling analyzer acquires a signaling information on an access network and a core network, and the access network and the core network further configure a plurality of communication cells.

S13: Start a traffic tracking mode according to the content of the signaling information, and obtain a mobile network measurement report signaling from a plurality of user terminals located in the plurality of communication cells, where the user terminal is a mobile communication device. Such as handheld phones, lithographic computers, notebook computers, etc.

S15: assigning one of the communication cells to a target cell (Target Cell) and from the neighboring target One of the plurality of communication cells of the communication cell or a combination of two or more of them accesses the matched mobile network measurement report signaling, and performs Ec/No numerical analysis to set a dynamic communication quality change information, and the dynamic communication quality changes. The information is recorded in the communication quality status of the communication cells.

The cellular mobile communication network system described above is set according to CDMA, WCDMA or OFDMA protocols. The number of adjacent cells selected ranges from 1 to 32. The communication quality project is a parameter of the first layer (Layer 1) of the CDMA, WCDMA or OFDMA protocol cellular mobile network, such as RSCP (Received Signal Code Power), Ec/No (Ratio of energy per modulating bit to the Noise spectral density), RSRP (Reference Signal Received Power) or RSRQ (Reference Signal Received Quality).

The signaling analyzer uses a hardware module or a software module to capture signaling information of the access network or the core network. The signaling information further includes a communication cell number information, and the communication cell number information records the number of each communication cell.

Please refer to FIG. 2, which is a first embodiment of the present invention. The WCDMA-compliant cellular mobile communication network system 1 includes a Mobile Switch Center device (MSC), a Radio Network Controller (Radio Network Controller, RNC), and a communication cell base station 17 And the client terminal 19. An Iu Interface 132 is established between the mobile switching center device 13 and the respective wireless network controllers 15 to establish a core network transmission, and the wireless network controller 15 is established with each communication cell base station 17. The Iub Interface 152 is used to establish the transmission of the access network, and the Iur Interface 154 is further established between the two wireless network controllers 15 to establish a communication link, and each communication cell base station 17 is further Each of the communication cells 2 is set to provide a communication service for the client 19 located within the coverage of the communication cell 2, The back-end central control computer device 10 is connected to the mobile switching center device 13 and the signaling analyzer 11, respectively, and is regulated.

The signaling analyzer 11 simultaneously monitors the mobile network Iub interface 152 and the Iu interface 132 of the cellular mobile communication network system 1, and extracts signaling information on the interface, and starts to use Call Trace according to signaling information. The mode is to process the signaling information extracted from the Iub interface 152 and the Iu interface 132, and generate the mobile network measurement report signaling according to the communication process of each client 19, and the foregoing signaling information further includes Cell ID information of the communication cell base station 17.

Please refer to FIG. 3, which is a schematic diagram of the measurement process of the target communication cell 2, and the implementation steps are as follows: First, a communication cell 2 is assigned as a target cell for analysis work. Then, the traffic tracking mode is used to obtain the cell number information of the communication cell 2 of the communication cell 2 base station, and the neighboring communication cell 2 adjacent to the target communication cell is collected, and in this embodiment, the adjacent communication cell 232 includes the first A neighboring communication cell 231 and a second adjacent communication cell 233 access the mobile network measurement report signaling having the same cell number (Cell Identity). When the mobile network measurement report signaling of the selected first neighboring communication cell 231 is calculated, if the Ec/No value obtained from the mobile network measurement report signaling is -9 dB, the first neighboring communication cell 231 The communication cell 212 with the target covers the relationship between the signal intensity at the cell edge, so the -9 dB must be compensated again by 3 dB, and finally the Ec/No value of the target communication cell 2 is equal to -6 dB.

Please refer to FIG. 4, which is a schematic diagram of calculation of base station coverage change using the communication quality Ec/No value of the target communication cell, and the steps are as follows: First, it is assumed that the coverage of the target communication cell 2 is covered by WCDMA. The Link Budget formula calculates it as the initial range A31 (dashed circle range).

As the number of users 19 of the system increases, the behavior of the user terminal 19 changes, and the terrain features change, the communication quality of the target communication cell will change, and the coverage range of the communication can be calculated through the Link Budget formula of WCDMA. A33 (solid coil range), from the scope change, the coverage of the communication has been narrower than the original coverage. Therefore, the system will generate corresponding dynamic communication quality change information in the back-end central control computer device 10 to prompt the telecommunication operator to This area covers reinforcement.

The method for analyzing the dynamic communication quality of the cellular mobile network of the present invention can immediately evaluate the impact of the actual signal coverage. This method not only improves the shortcomings of using the road test method, but also requires a lot of manpower and time. Compared with the network KPI value, the reliability of the test information source is also improved, so that the telecommunication operator can obtain more network communication optimization decisions. Comprehensive and useful information.

When the quality analysis method of the cellular mobile communication dynamic communication of the present invention is compared with other conventional technologies, the main features are as follows:

(1) The present invention can provide instant and long-time signaling data through the signaling analyzer, and completely display the dynamic communication quality change of the base station, and can more accurately perform the base station signal coverage adjustment, which can avoid the traditional road test method. The base station covers the shortcomings of the data and the network KPI value is easy to produce technical problems that the communication quality is diluted.

(2) The invention can completely rely on the computer to complete the dynamic communication quality data output, and solve the shortcomings that the traditional road test requires a lot of manpower and time.

The detailed description above is a detailed description of one of the possible embodiments of the present invention, but the embodiment is not intended to limit the scope of the patents of the present invention, without departing from the spirit of the invention. Equivalent implementations or changes shall be included in the scope of the patent in this case.

1‧‧‧Hive mobile communication network system

10‧‧‧ Back-end central control computer device

11‧‧‧Signal Analyzer

13‧‧‧Mobile switching center installation

132‧‧‧Iu interface

15‧‧‧Wireless Network Controller

152‧‧‧Iub interface

154‧‧‧Iur interface

17‧‧‧Communication cell base station

19‧‧‧ Client

Claims (6)

A cellular mobile network dynamic communication quality analysis method is applied to a cellular mobile communication network system, comprising the steps of: causing a signaling analyzer to acquire a signaling information on an access network and a core network, The access network and the core network are configured with a plurality of communication cells, wherein the access network is established in an access interface between the communication cell base station and the wireless network controller, wherein the core network is established The wireless network controller and the mobile switching center device access interface; according to the content of the signaling information to initiate a traffic tracking mode, and extract a mobile network from a plurality of user terminals located in the communication cells Measuring report signaling; and assigning one of the communication cells to be a target communication cell as a dynamic quality analysis target, and accessing the match from one or more of the communication cells adjacent to the target communication cell The mobile networks measure the reward signaling and perform a numerical analysis to set a dynamic communication quality change information, and the dynamic communication quality change information records the News communication quality state of the cell. The mobile communication network dynamic communication quality analysis method according to claim 1, wherein the cellular mobile communication network system is implemented according to a code division multiplexing multiple access technology protocol or an orthogonal frequency division multiplexing multiple access technology protocol. Settings. The mobile communication network dynamic communication quality analysis method according to claim 1, wherein the number of the selected neighboring cells ranges from 1 to 32. The mobile communication network dynamic communication quality analysis method according to claim 1, wherein the communication quality item is a code division multiplexing multiple access technology protocol or an orthogonal frequency division multiplexing multiple access technology protocol cellular operation The parameters of the first layer of the network. The mobile communication network dynamic communication quality analysis method according to claim 1, wherein the signaling analyzer uses a hardware module or a software module to retrieve the access network or the core network. Order information. The mobile communication network dynamic communication quality analysis method according to claim 5, wherein the signaling information further comprises a communication cell number information, and the communication cell number information records the number of the communication cells.