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Closed subscriber group (CSG) cell reselection method and device

A closed user group and cell reselection technology, applied to electrical components, wireless communication, etc., can solve problems such as heavy workload and frequent use, and achieve the effect of improving the success rate

Active Publication Date: 2016-01-27
SANECHIPS TECH CO LTD
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  • Abstract
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Problems solved by technology

[0003] CSG cells are generally used as outdoor macro cells, that is, as a supplement to non-CSG cells, to enhance indoor coverage and reduce the load of outdoor macro cells to provide higher wireless service quality. Therefore, CSG cells are generally deployed in existing macro cells. However, the users who sign up to use the Femtocell in the same macro cell also change dynamically. There are unsubscribed users and new users. All CSG cells within the coverage of the macro cell are added to the neighbor relationship of the macro cell, and the system changes in time, which will lead to a continuous and huge workload

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  • Closed subscriber group (CSG) cell reselection method and device
  • Closed subscriber group (CSG) cell reselection method and device
  • Closed subscriber group (CSG) cell reselection method and device

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Embodiment Construction

[0030] figure 1 It is a schematic flow diagram of a method for CSG cell reselection according to an embodiment of the present invention, as shown in figure 1 As shown, the method for CSG cell reselection in this embodiment includes:

[0031] Step 101: The UE matches the CGI information of the macro cell where it is camped on with the neighboring cell CGI list in the UE's CSG cell historical camping information, and if the matching is successful, the CSG cell frequency point corresponding to the successfully matched neighboring cell CGI list take measurements;

[0032] Before this step, the method further includes: the UE camps on a CSG cell, acquires relevant information of the CSG cell, and saves the relevant information of the CSG cell to the UE's CSG cell historical residence information (CsgHistoryInfo), and simultaneously writes In this way, the relevant information of the above-mentioned CSG cell will not be lost after the UE is powered off, and can still be read and u...

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Abstract

The invention discloses a closed subscriber group (CSG) cell reselection method comprising steps that UE matches the CGI information of a resident macro cell of the UE with a neighbor CGI list in the CSG cell historical resident information of the UE, and measures the CSG cell frequency points corresponding to the successfully-matched neighbor CGI list when matching succeeds; when it is determined that a measured physical cell ID is in the CSG physical cell ID range of the CSG cell historical resident information of the UE, the UE measures and evaluates the physical cell and selects the physical cell as a resident cell when it is determined that the physical cell satisfies a measurement evaluation condition. The invention also discloses a CSG cell reselection device.

Description

technical field [0001] The present invention relates to the technical field of Long Term Evolution (LTE, Long Term Evolution) mobile communication, in particular to a method and device for reselecting a Closed Subscriber Group (CSG, Closed Subscriber Group) cell. Background technique [0002] CSG is a concept introduced for home base stations. People who use home base stations are divided into some user groups. Users who are eligible to use home base stations to provide services are considered members of the user group. The user group composed of these members is called closed user group. [0003] CSG cells are generally used as outdoor macro cells, that is, as a supplement to non-CSG cells, to enhance indoor coverage and reduce the load of outdoor macro cells to provide higher wireless service quality. Therefore, CSG cells are generally deployed in existing macro cells. However, the users who sign up to use the Femtocell within the coverage of the same macro cell also chan...

Claims

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Application Information

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IPC IPC(8): H04W36/00H04W36/08
Inventor 胡力
Owner SANECHIPS TECH CO LTD
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