Method for allocating multiple carrier-frequency domain

Abstract

The method comprises: the wireless network controller sets several frequency points for a cell; wherein, there are a main carrier frequency point and more than one assistant carrier frequency points, and one public channel is set on each main carrier frequency point; each main carrier frequency point corresponds to a visible cell ID, and each assistant carrier frequency point corresponds to a hidden cell ID; the radio network controller sends the visible cell ID to user terminal; the user terminal measures the main frequency point corresponding to the visible cell ID; the radio network controller sends the main carrier frequency ID to the user terminal; the user terminal measures the main carrier frequency.

Description

technical field [0001] The invention relates to the technical field of Time Division Synchronous Code Division Multiple Access (TD-SCDMA), in particular to a method for configuring multi-carrier frequency cells in the system. Background technique [0002] The physical channel of TD-SCDMA includes three-layer structure: the first layer is radio frame, the second layer is subframe, and the third layer is time slot. Specifically, the physical channel is composed of several radio frames, and each radio frame is divided into two consecutive subframes, and each subframe includes seven service time slots and three special time slots. Such as figure 1 As shown, among the seven business time slots, the 0th time slot is fixedly allocated to the downlink, the 1st time slot is fixedly allocated to the uplink, and the remaining time slots can be allocated arbitrarily between the uplink and downlink. The three special time slots in the hatched part are downlink pilot time slot (DwPTS), ...

AI Technical Summary

Problems solved by technology

When the main carrier frequency fails, it means that other auxiliary carrier frequencies will also fail at the same time

Moreover, since in a multi-carrier frequency cell, the auxiliary carrier frequency and the main carrier frequency are in a many-to-one relationship, the problem of insufficient common channel resources is likely to occur

For example, a large number of users who initiate services within a period of time may cause insufficient public channel resources. At this time, if the user terminal migrates from the Cell-DCH state to the Cell-FACH state, the handover cannot be completed due to the congestion of the public channel resources.

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