TD- SCDMA system equipment, from the current test and

According to the test, TD- SCDMA technology is advanced.

Comprehensive coverage, unique business and increasingly mature industrial chain.

And completely meet the requirements of independent networking.

Requirements, and has unparalleled uniqueness in other systems.

Special advantages.

TD- SCDMA independent networking conditions

First of all, the technical standards are advanced. Is there a standard?

There is an advantage, the first is whether it can be satisfied in time.

Various application requirements, high efficiency and certain

Look ahead. TD-SCDM A absorbed the 20th century.

The most advanced technology in communication field since 1990s;

Smart antenna, joint detection, relay switching, dynamic signal

Channel allocation, uplink synchronization, etc. , to some extent, represents.

The development direction of mobile communication technology is prospected.

Sex and strong late-comer advantage.

Secondly, the network coverage is comprehensive. In solving TD-

In terms of coverage problems in various environments, SCDM A generally

In the past few days, in-depth research has been carried out on cities and suburbs.

Areas, remote areas and various special environments (subways, tunnels,

High-rise buildings, highways and railways), Putian Department

Train base station uses RF unit to pull out remote and indoor.

Various technologies, such as distributed antenna system, make Putian

TD base station can realize the breadth and depth coverage of the network.

Cover, can fully meet the requirements of separate networking.

Third, the characteristic business is rich. TD - SCDM A

It is a 3G standard with high business flexibility.

Yes, except for providing various general services of 3G.

In addition, you can take full advantage of unique key technologies to provide

Unique business.

Location service and Po C service are TD-

Two most representative enterprises with SCDM A characteristics.

For example. In location service, smart antenna and uplink are used.

Step, the user can carry out the accuracy within 89 meters.

Positioning, at the same time with the characteristics of low user cost, can

In emergency call service, location-based information service,

Location-based resource management is extensive.

Application; In PoC service, one of its main features

First, the downstream traffic is greater than the upstream traffic, TD-

The SCDM system can control uplink and downlink time slots.

The switching point for allocating upstream and downstream data traffic is very suitable.

Efficient transmission of asymmetric services such as PoC. the same

At that time, TD-SCDM A had independent intellectual property rights in China.

Yes, domestic manufacturers have basically mastered their core technologies and adopted.

PoC service carried by TD-SCDM A is not only suitable for

Applicable to public networks for public operations.

But also suitable for military, electric power, oil field, water conservancy and other majors.

With the communication network, communication in these special fields can be realized.

And has made a great leap in information technology.

Characteristics of TD- SCDMA independent networking

TD-SCDM network planning process and

W CDM A is similar to CDM A2000, and it can be.

Divided into: planning target analysis, wireless network regulations estimation.

Modeling, simulation analysis, site investigation, network adjustment, etc.

A stage. However, due to TD-SCDM A system

Adopt a series of new key technologies and wireless resource calculation.

Method, greatly improve the system performance, and finally for the network.

Planning and design have brought many new features.

involve

In network planning, coverage mainly comes from uplink.

Let's start with the budget. Take 12. 2k voice service, for example, TD

-connecting the budget areas between SCDM A and West Clean Development Mechanism A

Don't look at your watch. As can be seen from the table, TD-SCDM A a a

The coverage of the system is at least equivalent to W CDM A A A, and even

To a wider range.

Expand telecom capacity

Both theoretical research and simulation experiments show that

In other FD D C D M A systems, T D-

SCDM A is a system with limited code words, not interference.

System. Therefore, for TD-SCDM A system.

Generally speaking, under the condition of sufficient base station power, various services

It is very important for the network to maintain a fairly large coverage radius.

The planning is very favorable: if expansion is needed, it will be directly in the original

If the base station is partitioned and frequency points are increased, it can still be guaranteed.

Maintaining a stable coverage effect can obviously shorten the expansion time.

Time, save construction cost.

business

TD-SCDM business planning system

There are three characteristics: first, the coverage radius of various businesses.

Basically the same; Second, to adapt to the increase in business volume, you can

Adjust the time slot structure and adjust the upstream and downstream traffic.

The proportion of voice and data services can be transferred to each other.

Change; Third, it is convenient to calculate the sum of various concurrent users.

Number of users in statistical sense. These characteristics are all made up of

Flexible slot structure and codeword of TD-SCDM A

Due to the limited system characteristics.

Advantages of TD- SCDMA independent networking

Future mobile communication operation market, new technology

New businesses are emerging one after another, and users are becoming more and more mature.

The requirements of doing business are getting higher and higher, and operators must face them.

Market and technology costs and many other pressures. And independent groups

The TD-SCDM A system of the network can be used for operation.

What commerce brings is market advantage and cost advantage.

market superiority

The market advantages of TD-SCDMA are as follows.

The richness and convenience of business introduction.

It not only supports various existing 3G universal services, but also

And can introduce rich characteristic services, such as asymmetry.

IP data service, low-cost and high-precision positioning industry.

Business and PoC business are widely used in industries. At the same time,

The flexible time slot structure of TD- SCDMA ensures online.

New services with different characteristics have been introduced in different periods of network development.

Type of business, without network upgrade or transformation, to ensure that

Operators have enriched more new services in a shorter time.

Serve customers well and finally firmly occupy the market.

cost advantage

The cost advantage of TD-SCDM A is embodied in the system.

Unified equipment cost, networking cost, upgrade cost, etc.

noodle Specifically, from the channel of the base station in the actual network

In terms of quantity, W CDM A can be the largest in the bandwidth of 10M.

The channel capacity used is 64 12.2k voice signal.

Channels, and the number of channels that TD-SCDM A can use is 138.

12.2k voice channel, TD-SCDM single channel.

The channel cost is only the single channel cost of W CDM A A A.

46% 。 During the network construction, low-cost and multi-service will be carried out.

The continuous coverage of TD-SCDM A is the main problem.

The coverage radius of each business is basically the same, and it can be carried out.

Wide-area coverage, network construction in the later stage does not need to be carried out in the early stage.

Network adjustment makes TD-SCDM a base station.

Can save more than 30%. In addition, TD-SCDM A a a

Network rules and network optimization are simple and easy, which saves operators a lot.

Technical training and human capital cost.