A multi-carrier networking method and radio network controller, base station and terminal

Abstract

The invention provides a multi-carrier networking method. A proper frequency point is arranged at the network side as a main carrier and other carriers are of auxiliary carriers. An uplink same frequency interference power is measured on the main carrier periodically and the offset value of an uplink pilot frequency time slot is measured according to the measured result. Each service time slot on the main carrier is checked available or not and a corresponding mark is set. When the service terminal channel is accepted, the channel is preferably established on the auxiliary carrier. When the auxiliary carrier has no enough channel resource, the main carrier is checked whether the time slot is available or not and is accessed to the available time slot. In addition, the invention also provides a wireless network controller, a base station and a terminal capable of realizing the proposal. The main carrier is set into a unified frequency point, which avoids the far-end base station same frequency interference problem on each carrier. The uplink pilot frequency time slot offset is set through the base station same frequency interference measured on the main carrier, hence the available service time slot is utilized to great extent and the frequency spectrum efficiency of the system is enhanced.

Description

technical field [0001] The present invention relates to the communication field, in particular to a multi-carrier networking method, a wireless network controller, a base station and a terminal. Background technique [0002] In a time division duplex (TDD: Time Division Duplex) cellular mobile communication system, the downlink transmission signal of the base station will inevitably be delayed to the uplink time slot after a certain distance of propagation. Taking the 3G standard LCR TDD accepted by the International Telecommunication Union (ITU, international telecommunication union) as an example, its frame structure is shown in Figure 1: each subframe includes 7 regular time slots (TS0~6) and 3 special time slots ( DwPTS, GP and UpPTS). Among them: time slot 0 (TS0, Time Slot 0) and downlink pilot channel (DwPCH, Downlink Pilot Channel) are fixed as downlink time slots; uplink pilot channel (UpPCH, Uplink Pilot Channel) and TS1 are fixed as uplink time slots; TS2 Up to ...

AI Technical Summary

Problems solved by technology

[0015] For the DwPTS Blanking scheme, since the TS0 time slot transmits the broadcast signal, it also has a strong transmission power, so the interference of the TS0 time slot signal to the remote base station is difficult to eliminate

At the same time, this solution will reduce the downlink DwPTS receiving capability

[0016] In addition, although the multi-carrier main carrier frequency reuse scheme can reduce the common channel interference by N times, in a continuous topology network, since there are remote base station TS0 and DwPTS transmissions on each carrier, the UpPTS and TS1 of each carrier There is co-frequency interference between base stations in the first business time slots, which brings a large capacity loss

Images