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Wireless network planning method of CDMA service

A code division multiple access and wireless network technology, which is applied in the field of wireless network planning for code division multiple access services, can solve problems such as unadjustable and difficult capacity planning, and achieve the effect of reducing difficulty and realizing load sharing

Inactive Publication Date: 2008-03-12
ZTE CORP
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Problems solved by technology

However, in actual situations, the cell load is determined by the actual user distribution, which is an unadjustable user behavior, so it is difficult to achieve the goal of capacity planning

Method used

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  • Wireless network planning method of CDMA service
  • Wireless network planning method of CDMA service
  • Wireless network planning method of CDMA service

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Embodiment Construction

[0045] The main idea of ​​the present invention is: the traffic distribution of users directly affects the final planning result of the wireless network of CDMA service, and the distribution of actual users can be well simulated by using the population database and reasonable design parameters; The database judges whether the absolute value of the difference between the user distribution ratio within the cell pilot coverage area and the network average user ratio is greater than the absolute value of the preset load difference threshold, and if so, adjusts the network topology until it meets the requirements. In practice, the entire planning of the planning area can be divided into several areas according to the communication environment, and each area is planned separately.

[0046] Referring to Fig. 1, a kind of wireless network planning method of CDMA service, comprises the following steps:

[0047] Step 1. Initialize the planning parameters, including the limit load L of a...

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Abstract

The invention discloses a wireless network planning method of the code division multiple access service. After the traffic density distribution diagram and the regional initial network topology in the planning region are generated according to the population database, the user distribution rate in the strongest pilot frequency coverage area in each cell of the planning area is calculated, and the absolute value of the difference value between the user distribution proportion in each cell of the planning area and the network average user proportion is compared with the absolute value of the load difference value threshold, if the comparison result is that the absolute value of the proportion difference value is larger than the absolute value of the load difference value threshold, the network topology of the station point of the cell opposite to the proportion difference value is adjusted, and the user distribution proportion in the cell is re-calculated to perform comparison and adjustment, and otherwise, the current planning result is output. The technical proposal of the invention simulates the actual user distribution and adjusts the network topology by utilizing the population database, the load average distribution in the cell of the planning areas is realized to the maximum extent, and the difficulty of the later network optimization is reduced.

Description

technical field [0001] The invention relates to a wireless network planning method, in particular to a wireless network planning method for code division multiple access services. Background technique [0002] CDMA / WCDMA (Code Division Multiple Access) is a self-interference system, and the network capacity and network coverage of CDMA / WCDMA affect each other. In CDMA / WCDMA network planning, it is necessary to consider not only the coverage radius of different cells in the planning area under a specific propagation environment, but also the coverage radius of each cell under different load conditions. [0003] The distribution of users is an important factor affecting the results of CDMA / WCDMA network planning. The goal of capacity planning is to balance the loads of the cells in the planned area while meeting the capacity requirements of users, so as to avoid traffic overheating in some cells. That is to say, try to make the network topology in the planning area consisten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/36H04Q7/34H04B7/26H04J13/02H04W16/18H04W16/22H04W16/24
Inventor 薛傲陈健
Owner ZTE CORP
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