Secondary cell activation method, access network device, communication device, and system

Abstract

The embodiment of the present invention provides a secondary cell activation method, a wireless access network device, a terminal device, and a communication system, and belongs to the field of communication. The method includes the steps that the access network device sends an activation command to the terminal device, wherein the activation command is used to indicate that a secondary cell is activated; the access network device sends the first configuration information of a first reference signal to the terminal device; the access network device sends a first reference signal to the terminal device according to the first configuration information, wherein the first reference signal is used to obtain a channel measurement result of the secondary cell. The secondary cell activation methodprovided by the embodiment of the present invention can provide a flexible and efficient secondary cell activation mechanism, and improves the activation efficiency of the secondary cell.

Description

technical field [0001] The present invention relates to the communication field, and in particular to a method for activating a secondary cell, an access network device, a communication device and a system. Background technique [0002] At present, in the network deployment of the wireless communication network, the Carrier Aggregation (CA) technology is applied, and there can be multiple different cells under one access network device, and the terminal device can communicate with multiple cells under one access network device at the same time. Different cells remain connected. CA means that the carrier used in the communication process is not limited to one, but communicates simultaneously on a main carrier and several auxiliary carriers. The cell aggregated by the terminal equipment with the carrier aggregation function is divided into a primary cell and several secondary cells. The secondary cell can be activated and deactivated as required during use. For example, if ...

AI Technical Summary

Problems solved by technology

However, in the existing technology, on the one hand, because the configuration information of CRS is stipulated in the protocol, the sending period and position are relatively fixed;

For the above reasons, the existing CRS-based activation methods are not flexible enough and the activation efficiency is not high enough.

Moreover, this activation method can only be applied to systems compatible with CRS, and has poor versatility

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