User's terminal cut-in method using data card service

Abstract

The present invention discloses service data card service user terminal accessing method, relating to third generation mobile communication technology, providing high-speed data transmission providing high-speed data transmission for data cards without compression mode measuring and pilot frequency switching in using HSDPA. The present invention makes each cell according to whether supporting data cards service setting sign, and broadcasting said sign in broadcast channel, to make UE capable of according to said sign selecting resident only in supporting data cards service cell. Data cards service supporting cell can be HSDPA supporting cell and not supporting HSDPA common cell outside supporting HSDPA cell coverage area. Said sign can be configured accessing grade correlative parameter.

Description

technical field [0001] The invention relates to the third-generation mobile communication technology, in particular to an access method of a user terminal using a data card service. Background technique [0002] The application of mobile communication in today's society is becoming more and more extensive, and the cell frequency coverage technology in mobile communication is also constantly improving. In the initial stage of mobile communication system application, because the traffic volume is not large, often a cell covers a relatively large area. With the increasing number of users, it is difficult for the system to meet the increasing traffic demand. At this time, a cell with a different frequency is often added in some areas to absorb the traffic. In this way, multiple different-frequency cells cover the same area, for example figure 1 As shown in , among the three areas A, B, and C, areas A and B have more traffic, and they are covered by two cells with different fre...

AI Technical Summary

Problems solved by technology

[0014] In practical application, the above solution has the following problems: low data transmission quality, large system interference affects system capacity and other performance, cannot avoid increasing the call drop rate of data card users, and increases the signaling processing burden of the system

[0015] The main reason for this situation is that, first of all, because data card users perform cell selection and reselection according to the measurement of pilot signals, some data card users reside in cells that do not support HSDPA. When users initiate data service access , the system can only establish services on the DPCH channel, and the data transmission quality is low; secondly, through measurement control, the system allows the data card users established on the DPCH to perform compressed mode measurement to obtain the HSDPA inter-frequency cell with the best signal. During the compressed mode measurement process, the user's communication quality is affected, and the system interference also increases accordingly, thereby reducing system capacity and other performance

Third, the system switches the users established on the DPCH channel to the HSDPA cell through inter-frequency hard handover, which not only increases the call drop rate of data card users, but also increases the signaling processing load of the system

Images