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Main-auxiliary carrier switching method and apparatus

A technology of primary and secondary carrier switching and secondary carrier cell technology, which is applied in the field of communication, can solve the problems of large switching delay and increased probability of terminal disconnection, etc., and achieve the effect of reducing switching delay and reducing the probability of terminal disconnection

Active Publication Date: 2018-06-01
ZTE CORP
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Problems solved by technology

[0007] According to the method and device for primary and secondary carrier switching provided by the embodiments of the present invention, the problem of large switching delay in the carrier aggregation scenario existing in the prior art or the reduction of the switching delay in the carrier aggregation state can be overcome to cause the terminal to go offline Defects with increased probability

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  • Main-auxiliary carrier switching method and apparatus

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Embodiment Construction

[0047] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described below are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0048] figure 1 It is a block diagram of the main and auxiliary carrier switching method provided by the embodiment of the present invention, such as figure 1 As shown, the steps include:

[0049] Step S101: During the movement of the terminal between adjacent carrier aggregation cells, the primary carrier cell determines whether to perform primary and secondary carrier handover according to the received measurement report of the terminal.

[0050] Specifically, the main carrier cell determines whether to perform main and auxiliary carrier handover by judging whether the measurement report of the terminal satisfies a pre-configured handover threshold.

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Abstract

The invention discloses a main-auxiliary carrier switching method and apparatus, and relates to the technical field of communication. The method comprises the following steps: in a process when a terminal moves between adjacent carrier aggregation cells, a main carrier cell determines whether main-auxiliary carrier switching needs to be performed according to a received measurement report of the terminal; if the main carrier cell determines that the main-auxiliary carrier switching needs to be performed, the main carrier cell notifies a target auxiliary carrier cell to prepare for the main-auxiliary carrier switching; the main carrier cell receives a time advance amount obtained during the preparation of the main-auxiliary carrier switching from the target auxiliary carrier cell; and the main carrier cell generates a main-auxiliary carrier switching command carrying the time advance amount and sends the main-auxiliary carrier switching command to the terminal, so that the terminal accomplishes the main-auxiliary carrier switching by using the time advance amount. According to the main-auxiliary carrier switching method and apparatus disclosed by the embodiment of the invention, themain-auxiliary carrier switching delay of the terminal in a carrier aggregation scene is shortened in a simple and reliable manner, and the offline probability of the terminal in the switching process is reduced.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for switching primary and secondary carriers. Background technique [0002] At present, the demand for services in the Long Term Evolution Advanced (LTE-A) system is increasing, the use of carrier aggregation technology is becoming more and more common, and the number of cells and users is becoming more and more dense. User experience in a mobile state is sensitive to handover delay. Therefore, the handover delay becomes a key indicator that operators pay more attention to. [0003] The user experience of a terminal using carrier aggregation technology mainly depends on the service transmission rate and service continuity. [0004] For the service transmission rate guarantee in the handover scenario, at present, it is mainly solved by switching with a carrier, that is, in the handover process, the secondary carrier for the terminal to switch t...

Claims

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Application Information

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IPC IPC(8): H04W24/10H04W36/00H04W36/08
CPCH04W24/10H04W36/0011H04W36/0083H04W36/08
Inventor 朱利晓
Owner ZTE CORP
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