Transmission mode switching method and switching device in long term evolution (LTE) system

Abstract

The invention discloses a transmission mode switching method and a switching device in a long term evolution (LTE) system, which are used for solving the problems of the prior art that when switching is carried out between a transmission mode 3 and a transmission mode 7 in the LTE system, the switching between the modes is frequent along with the change of a channel environment, the time for switching from single-flow transmission to double-flow transmission is long and air interface resources are wasted. The method comprises the following steps that a base station judges the type of the transmission mode which is currently adopted to transmit data according to the identifier of the type of the transmission mode; the mode switching parameters of the transmission mode which is adopted currently within a set time are counted; and when the mode switching parameters reach a preset mode switching threshold which corresponds to the currently adopted transmission mode, the modes are switched. After the technical scheme of the invention is adopted, the problems that the switching between TM3 and TM7 is frequent, the switching cycle from single-flow transmission to double-flow transmission is long, the current channel environment cannot be quickly adapted, and the air interface resources are wasted can be effectively solved.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for switching between transmission modes in an LTE system. Background technique [0002] In recent years, with the rapid growth of communication equipment's demand for information technology, communication equipment puts forward higher requirements for the transmission rate and transmission performance of wireless communication systems. However, due to the scarcity of unlimited spectrum resources, the wireless communication system must have higher spectrum efficiency in order to achieve a higher transmission rate and better transmission performance. Judging from the current technological development, MIMO (Multiple Input Multiple Output) technology uses multiple antennas to achieve multiple transmissions and multiple receptions. It can achieve high speed and large capacity on limited spectrum resources, and fully develops space resources. It plays an importa...

AI Technical Summary

Problems solved by technology

[0010] Embodiments of the present invention provide a method and device for switching between transmission modes in an LTE system, to solve the problem in the prior art when switching between transmission mode 3 and transmission mode 7 in the LTE system, depending on the channel environment The switching between changing modes is frequent, and the switching time from single-stream transmission to dual-stream transmission is long

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