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Method for reselecting home base station cells and terminal

A technology for home base station and cell reselection, applied in the field of communication, can solve the problem of repeated reading of cell broadcast, etc., and achieve the effect of saving wireless resources and improving efficiency

Inactive Publication Date: 2010-06-16
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] However, when the UE already knows that the CSG cell cannot be reselected, it still needs to read the broadcast of the cell and obtain the IFRI to determine the next behavior of the UE. There is a problem that the UE repeatedly reads the cell broadcast

Method used

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  • Method for reselecting home base station cells and terminal
  • Method for reselecting home base station cells and terminal
  • Method for reselecting home base station cells and terminal

Examples

Experimental program
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example 1

[0055] The CSG UE camps on the macro cell M_a1 of the frequency point A. The CSG UE learns from the CSG cell-specific PCI range scanning frequency B obtained in the CSG cell where it has camped. There are macro cells M_b1, M_b2 and H_b1 on it, and frequency B The priority of frequency A is higher than that of frequency A, and the wireless quality of each cell on frequency B is RH_b1>RM_b1>RM_b2, where H_b1 meets the reselection threshold; UE confirms that it is the same as the CSG cell it has accessed by comparing the surrounding feature information The surrounding feature information is not consistent, so it is judged that there is unlikely to be a CSG cell that can be accessed in the surrounding area of ​​the current environment. The same-frequency reselection parameter saved in CSG_UE is read from the broadcast of the CSG cell that has resided. This parameter is in the PLMN Inner is valid for all CSG cells, and this parameter is set to allow reselection; therefore, UE remove...

example 2

[0057] The CSG UE camps on the macro cell M_a1 of frequency point A, and the CSG UE learns that there are macro cells M_b1, M_b2, and H_b1 on frequency B by scanning frequency B within the dedicated PCI range of the macro cell where it has camped. The priority of frequency B is higher than that of frequency A. The wireless quality of each cell on frequency B is RH_b1>RM_b1>RM_b2, and H_b1 meets the reselection threshold. By comparing the surrounding characteristic information, the CSG UE finds that it is not consistent with the surrounding characteristic information of the previously accessed CSG cell (that is, the locally saved home base station cell that can be reselected), so it judges that the surrounding environment of the current environment is unlikely to be accessible. In the incoming CSG cell, the public same-frequency reselection parameter obtained by the UE in the broadcast of the cell M_a1 where the UE resides is set to disallow reselection for all cells on frequenc...

example 3

[0059] The CSG UE camps on the macro cell M_a1 of frequency point A, and the CSG UE learns that there are macro cells M_b1, M_b2, and H_b1 on frequency B by scanning frequency B within the dedicated PCI range of the macro cell where it has camped. The priority of frequency B is higher than that of frequency A, and the wireless quality of each cell on frequency B is RH_b1>RM_b1>RM_b2, where H_b1 and M_b1 meet the reselection threshold. By comparing the surrounding feature information, the UE finds that it is inconsistent with the surrounding feature information of the CSG cell it has accessed; the same-frequency reselection threshold parameter saved by the CSG UE is read from the current cell M_a1, and this parameter is stored in the PLMN. All CSG cells are valid, and the reselection threshold in this parameter is equal to Threshold. Therefore, the CSG UE removes H_b1 from the target candidate cell until the common intra-frequency reselection parameters saved by the CSG UE chan...

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Abstract

The invention discloses a method for reselecting home base station cells and a terminal. The method comprises that: before reading the broadcast of a target home base station cell, a terminal determines that the target home base station cell cannot be reselected; and when determining the target home base station cell is the home base station cell that has the highest wireless quality at the frequency point wherein the terminal is positioned, the terminal determines if to continue to reselect other cells at the frequency point according to a co-frequency reselection parameter. Through the treatment, the problem that the terminal still needs to read the broadcast of a CSG cell and acquire IFRI under the condition of already knowing that the CSG cell cannot be reselected is solved, the reading of the broadcast of the CSG cell that cannot be reselected is avoided, the switching efficiency of the terminal is improved, and wireless resources are saved.

Description

technical field [0001] The present invention relates to the communication field, and in particular, relates to a cell reselection method of a home base station and a terminal. Background technique [0002] At present, in the construction of modern wireless network systems, the indoor coverage of wireless networks has become the focus of network construction. A suitable indoor coverage scheme can make the network play its role to the greatest extent and create greater value for operators. On the other hand, It can also save the operator's network construction cost, thereby achieving low investment and high return for the operator. [0003] At present, more and more multinational operators hope to provide one-stop wireless access solutions and equipment. This wireless access equipment can provide various wireless access functions. When users use the equipment at home, the operator Preferential tariffs can be provided. Therefore, in related technologies, a wireless access devi...

Claims

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Application Information

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IPC IPC(8): H04W36/00H04B7/15
Inventor 杜忠达黄亚达
Owner ZTE CORP