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Cell state switching method and terminal

A cell state, state switching technology, applied in the field of communications, can solve problems such as overloading of the primary cell

Inactive Publication Date: 2016-10-05
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of communication technology, the technology of carrier aggregation has been proposed. Such a base station can form as many as 32 cells within its coverage area, and the number of cells serving the same terminal has also increased. In the previous technology , the primary cell is usually used to transmit uplink control information, but if a terminal has a large number of serving cells, it will lead to the overload of the primary cell, so it is proposed to use the secondary cell to transmit uplink control information
However, each cell corresponds to an activation state and a deactivation state. When a secondary cell is used to transmit uplink control information for other cells, how to deal with its deactivation operation or activation operation has not been obtained in the prior art. solve

Method used

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  • Cell state switching method and terminal

Examples

Experimental program
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example 1

[0231] Image 6 What is shown is a method for deactivating the first secondary cell based on the method described in the embodiment of the present invention, including:

[0232] Step 101: The LTE base station configures the carrier aggregation serving cell deactivation timer configuration information, PUCCH group information, secondary cell information for PUCCH transfer, PUCCH resource configuration and other configuration information to the terminal through RRC messages, according to the configuration information.

[0233] Step 102: The terminal activates the secondary cell 1 according to the instruction of the LTE base station (the specific steps are not described here), and configures the deactivation timer of the secondary cell 1 according to the deactivation timer configuration information. According to the PUCCH group information, the terminal knows that the primary cell belongs to PUCCH group 1, the secondary cell 1 and secondary cell 2 belong to PUCCH group 2, and the...

example 2

[0255] Figure 7 What is shown is another method for deactivating the first secondary cell based on the method described in the embodiment of the present invention, including:

[0256] Step 201: The LTE base station configures the UE with configuration information such as PUCCH grouping information of the serving cell for carrier aggregation, secondary cell information for delivering the PUCCH, and PUCCH resource configuration through an RRC message, according to the configuration information. The terminal may know from the PUCCH group information that the primary cell belongs to PUCCH group 1, the secondary cell 1 and secondary cell 2 belong to PUCCH group 2, and the PUCCH on PUCCH group 2 is transmitted on secondary cell 1.

[0257] After step 201, the terminal activates the secondary cell 1 according to the instruction of the LTE base station (the specific steps are not described here).

[0258] Step 202: The MAC data packet received by the terminal includes the deactivati...

example 3

[0268] Figure 8 What is shown is a method for activating a first secondary cell based on the method described in the embodiment of the present invention, including:

[0269] The terminal has saved configuration information such as the deactivation timer configuration information of the serving cell of carrier aggregation, PUCCH group information, secondary cell information for transmitting PUCCH, and PUCCH resource configuration, including: deactivation timer configuration information of secondary cell 1 and secondary cell 2 . In this example, the primary cell belongs to PUCCH group 1, the secondary cell 1 and secondary cell 2 belong to PUCCH group 2, and the uplink control information on PUCCH group 2 is transmitted on the PUCCH of secondary cell 1.

[0270] Step 301: the secondary cell 1 and the secondary cell 2 are in a deactivated state, and the secondary cell 1 stops PUCCH transmission when deactivated.

[0271] Step 302: The MAC data packet received by the terminal in...

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Abstract

The invention discloses a cell state switching method and a terminal. The method comprises the following steps: acquiring cell state switching indication information; and based on the cell state switching indication information, switching the state of a first auxiliary cell of a PUCCH (Physical Uplink Control Channel) group according to predefined rules when the state switching trigger conditions of the first auxiliary cell are met, wherein the first auxiliary cell is an auxiliary cell configured with a PUCCH, and the PUCCH is used to send the uplink control information of the cells in the PUCCH group.

Description

technical field [0001] The invention relates to the communication field, in particular to a cell state switching and a terminal. Background technique [0002] With the development of communication technology, the technology of carrier aggregation has been proposed. Such a base station can form as many as 32 cells within its coverage area, and the number of cells serving the same terminal has also increased. In the previous technology , the primary cell is usually used to transmit uplink control information, but if a terminal has a large number of serving cells, it will lead to overloading of the primary cell, so it is proposed to use the secondary cell to transmit uplink control information. However, each cell corresponds to an activation state and a deactivation state. When a secondary cell is used to transmit uplink control information for other cells, how to deal with its deactivation operation or activation operation has not been obtained in the prior art. solve. Cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/00
CPCH04W36/00837
Inventor 余媛芳杜忠达黄河
Owner ZTE CORP