Method for switching terminal among heterogeneous hierarchical distributing type base stations

Abstract

The invention provides a method for switching a terminal among heterogeneous hierarchical distributing type base stations, comprising the steps: the terminal reports the measurement of a signal of a macrocell and the measurement of a signal of a microcell to a network; the network judges whether the terminal needs to be switched among the distributing type base stations or not according to the measurement reported by the terminal and a preset decision threshold; if the terminal needs to be switched among the distributing type base stations, the network confirms a duplex mode after terminal switch according to an available frequency spectrum resource of the target base station; the network transmits a switching control command to the terminal and carries the duplex mode after switch; and the terminal is switched according to the switching control command transmitted by the network. By using the invention, the terminal can be freely switched among the heterogeneous hierarchical distributing type base stations according to the use condition and a terminal state of network resources.

Description

technical field [0001] The present invention relates to the wireless access network technology in the communication network, and in particular to a method for realizing terminal handover among layered heterogeneous distributed base stations. Background technique [0002] The previous handover technologies of layered wireless access networks can be divided into two basic categories: intra-layer parallel handover and inter-layer vertical handover. Since the intra-layer parallel handover of layered wireless access networks can be realized by traditional handover methods, therefore, The handover technology of the existing layered access network mainly solves the problem of vertical handover between layers. [0003] Chinese patent application No. CN1503580 disclosed a mobile terminal scheduling method in a layered cell system on 2004.06.09. First, the speed of the terminal is measured; if the terminal is in a high-speed moving state, it is judged whether there is a higher-level c...

AI Technical Summary

Problems solved by technology

[0008] The above-mentioned Chinese patent application No. CN1528098 provides a method for connecting the control channel and the traffic channel of the terminal to the macro cell and the micro cell respectively, but this technology does not provide how to realize the connection under such a link relationship. Terminal handover between macro cells

Especially in the hierarchical wireless access network composed of hierarchical heterogeneous distributed base stations composed of FDD remote radio unit RRU_FDD, TDD remote radio unit RRU_TDD, and FDD / TDD integrated baseband unit, there are both paired spectrum and With non-paired spectrum, not only can the separation of traffic channels and control channels be realized, but also a more flexible hybrid duplex mode in which control and traffic can be separated can be further realized, which will lead to a more flexible handover between distributed base stations for mobile terminals in the future. Flexibility will lead to the emergence of new handover technologies, and it is also necessary to consider more system requirements when implementing handovers. However, there is currently a lack of technical solutions in this regard

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