Scheduling Programs Of The Space Division Multiplexing Based On TD-HSDPA Technology

In recent years, the rapid development of third generation communication systems, especially through our self-developed TD-SCDMA system standards in the international community was first proposed by our own Chinese communication protocol standards, but the TD system is a frequency-constrained systems, in order to keeping the improvement in the field of data communications in the fierce competition in the upper hand, continues to raise the minimum cost of data users feelings degrees, empty the throughput of the degree of support has become an important measure. To solve this problem, many equipment manufacturers proposed smart antenna indoor distributed systems, and space division multiplexing technology, the existing TD-SCDMA wireless network resources provided a higher air throughput.Thereby doubling the throughput of empty times even possible, TD-SCDMA has spectrum efficiency have been effectively upgrade.In this paper,based on HSDPA technology through the use of specific locations of the air division multiplexing system of the basic agreement on a brief analysis and presentation, as well as key technologies for the analysis of HSDPA, the system proposed by the corresponding scheduling programs; focused on analysis of adaptive coding and modulation, hybrid ARQ and fast packet scheduling of these three techniques. Second, discusses the TD-SCDMA HSDPA system, the basic principles of scheduling algorithm and the space division multiplexing in reality the important role, and indoor & outdoor space division multiplexing implementations made a discussion;third, space division multiplexing on the way to do a specific implementation schedule is proposed to achieve spatial reuse of the basic flow of scheduling algorithm and describes the current implementation based on TD-HSDPA space division multiplexing operation mode can be achieved by the degree of the test and can be commercial operators to make a exposition of the extent; finally, the entire text of the summary of test results demonstrate the spatial reuse scheduling advantage.The principal innovation of this article are as follows:A division multiplexing in the air to the antenna reported, identifying the channel where the current user location, and individual users to queue up the system to maximize the allocation of resources to enable the on a different channel users can share resources, thereby enabling the air throughput to be grown exponentially.