What kind of professional knowledge do wireless network optimization engineers need?

Scope of expertise of wireless network optimization engineers

First, wireless network optimization.

conceptual category

This is a concept involving information construction.

This is a concept involving a mobile client terminal in a wireless network.

This is a high-tech working concept involving new networks.

Definition of technical terms

Wireless network optimization, the full name is "wireless network optimization", which refers to various optimizations (including hardware, software, configuration, etc. ) is used in the wireless network after the completion of the communication network. In essence, it is to improve the air signal performance between mobile phone and base station through several steps: data acquisition, performance evaluation, optimization scheme formulation and implementation. Data collection includes drive test (DT), dial test (CQT) and traffic statistics (NMO).

words explanation

At present, the networks in the world are divided into wired networks and wireless networks. Wired network refers to the Internet and broadband, which generate data traffic (such as 3G and 4G). Wireless network refers to the mobile terminal users, not China Mobile, but the mobile phone users of China Unicom, China Telecom and China Mobile! Network planning and network optimization refer to the work done by the three major operators including these user groups. Network planning is network planning, and network optimization is network optimization. Network planning refers to the data planning of wireless network, and optimization refers to the optimization of wireless network. The so-called optimization is to improve the network performance index through network data analysis and network adjustment! It also enables operators to gain greater benefits on the basis of existing networks!

Second, the wireless network optimization engineer

In the rapidly developing information age, network construction has become an important part of social informatization construction. In the process of information construction, a lot of work has been derived, and wireless network optimization is one of them. Wireless network optimization engineer, as its name implies, is a professional technician engaged in wireless network optimization and an engineer who plans and optimizes wireless networks!

Engineers who were not directly engaged in wireless network optimization in the early days were generally transferred to the wireless network optimization department from people with excellent engineering positions such as installation and debugging. Due to the mature development of wireless network optimization and the large demand for personnel, many training institutions have set up wireless network optimization training, which can be directly employed after training.

Third, the wireless network optimization engineer's work content

operating duty

1.？ Familiar with all aspects and layout of the network, collect a lot of network data;

2.？ Field equipment and transmission link investigation and equipment performance status investigation;

3.？ Apply the learned professional knowledge, control the monitoring and optimization of equipment and network management, find the fine links in the network, and put forward management suggestions for handling.

Specific operation

road test

Mainly sit in the car, turn on the laptop, and use relevant test software to connect the road test equipment with GPS and frequency scanner. Conduct road tests or collect data in buildings.

Call test:?

Common problems such as call failure, dropped call and poor coverage effect and their solutions.

Data analysis:

(1) After the collection of test data, make statistical analysis on relevant data, such as field analysis, handover problem analysis, interference problem analysis, one-way analysis, etc. Find out the areas and reasons that affect network problems;

(2) Traffic statistical analysis belongs to the work of senior wireless network optimization engineers, but road test and road test data analysis must be combined with traffic statistical analysis. ?

Put forward a plan:

Through the analysis of positioning fault, the solution to eliminate the fault is put forward.

Typical, incarnation

Finally, the troubleshooting scheme is implemented to verify the adjustment effect. For example, the main adjustment means and parameter adjustment of road test.

Fourth, engineers have professional knowledge.

Basic structure, basic theory and basic concepts of wireless mobile network;

Wireless network optimization foundation and planning;

Edge technology

The development history and future development direction of GSM; GSM handover, reselection and selection; Signaling flow of GSM, etc.

Code Division Multiple Access (code division multiple access)

be good at

database

Road test tasks and road test personnel need to have basic knowledge, foreground test equipment, software application and data analysis.

Analysis on the industry prospect of verb (abbreviation of verb)

Employment prospect analysis

Employment prospects: At present, 3G is popular in China, and 4G is about to open. Major operators and equipment vendors urgently need a large number of professional wireless network talents. With the mobile communication industry becoming one of the hottest industries at present, there are more and more excellent mobile network companies, and the demand for excellent mobile network talents is increasing rapidly. According to the latest statistics of Zhaopin recruitment, the current shortage of outstanding talents in China mobile network exceeds 654.38 million+people, and it is still growing.

?

salary

The salary level of network optimization is relatively high, and it is a high-paying profession, or a profession that is "more popular as you get older". The starting salary of newly-hired wireless network optimization engineers is around 4000, and the monthly salary of senior engineers can reach 15000 or more.

Intransitive Verbs Professional Forum

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Source:

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