Method for converting types from public channel to dedicated channel in CDMA system

Abstract

The method includes steps: power on running system, setting up counting threshold value, capacity threshold values of userí»s receiving buffer and sending buffer, capacity threshold values of receiving buffer and sending buffer of common channel; system builds user service on common channel, control side asks base station to carry out load measurement of sub zone; user side, UE carries out measuring capacity of userí»s receiving or sending buffer; if capacity of userí»s receiving or sending buffer is larger than its threshold value, then reporting to control side and starts up the counter plus 1; if accumulated value larger than threshold value of counter, as well as load of sub zone is not over loading, and system can provide suitable resource of sub zone, then carrying out type conversion from common channel to dedicated channel; well considering detailed circumstances of switching channel in CDMA system, the method saves system resource effectively, and raises capacity of system.

Description

technical field [0001] The present invention relates to a type conversion method between different communication channels of a Code Division Multiple Access (CDMA) system, especially for a type conversion method from a common channel shared by multiple users to a single user dedicated channel . Background technique [0002] With the development of mobile communications, more and more services are gradually being applied, including not only voice services under the traditional Circuit Switched (hereinafter referred to as CS) connection mode, but also packet switched (Packet Switched, hereinafter referred to as PS) ) data service under the connection mode. In particular, the close combination of packet data services and networks provides people with a wide range of applications: video calls, streaming media, file downloads, video on demand, sending and receiving emails, and so on. However, the characteristics of these packet data applications vary greatly. In addition to con...

AI Technical Summary

Problems solved by technology

However, this method only considers the load or throughput of the common channel and the amount of data related to the user, without considering factors such as the load of the cell and the supply capacity of resources. In the CMDA system, when the cell is overloaded, one of the measures is Reduce the throughput of packet services, but switching to a dedicated channel is just to improve the throughput of packet services, so it has to be switched back to the public channel. Repeatedly not only increases the signaling overhead, but also easily causes the loss of packet data

In addition, if the spreading factor (channelization code resource) provided by the system cannot meet the requirements of the data transmission rate related to the user, even if the conversion is performed, the burden of the transmission buffer area related to the user connection cannot be relieved. The conversion loses its meaning

[0008] Therefore, the existing method does not fully consider the specific situation of channel switching in the CDMA system, so that it cannot make a correct judgment, so that the system resources cannot be rationally used after channel switching, and may even increase signaling overhead, loss Undesirable consequences such as grouped data

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