US 2016/0112915 A1 · Cell Reselection Method and Apparatus, Base Station

Abstract

Disclosed are a cell reselection method, comprising: when a source cell determines that a UE meets an initial reselection condition of reselecting a target cell, the source cell performing a local search to find whether a reselection threshold parameter of reselecting the source cell from the target cell exists, if not, reselecting the target cell for the UE, and if yes, further determining whether a corresponding parameter of the UE in the source cell is smaller than or equal to the reselection threshold parameter, if not, not reselecting the target cell for the UE, and if yes, reselecting the target cell for the UE. Further disclosed are a cell reselection apparatus and a base station. The technical solution of the present invention avoids asymmetry of reselection policy between a TD cell and a GSM cell, avoids pingpong reselection between the TD cell and the GSM cell, shortens the duration that the paging of a VE is off during reselection, reduces the network load, and making the VE energy conservative.

Claims12

Dependent claims

A method for cell reselection, comprising:

when determining that a User Equipment UE being served in a source cell meets an initial reselection condition for reselecting to be served in a target cell, locally searching for a source cell reselection parameter threshold for a UE being served in the target cell to reselect to be served in the source cell;
when there is no such threshold, allowing the UE being served in the source cell to reselect to be served in the target cell;
when there is such a threshold, further determining whether a source cell reselection parameter corresponding to the source cell reselection parameter threshold measured for the source cell by the UE is less than or no greater than the source cell reselection parameter threshold;
when the source cell reselection parameter is less than or no greater than the source cell reselection parameter threshold, allowing the UE being served in the source cell to reselect to be served in the target cell.

1 more element

An apparatus for cell reselection, comprising a first determining unit, a search unit, a reselecting unit, and a second determining unit, wherein

the first determining unit is configured for:
determining whether a User Equipment UE being served in a source cell meets an initial reselection condition for reselecting to be served in a target cell;
when the UE being served in the source cell meets the initial reselection condition for reselecting to be served in the target cell, triggering the search unit;
the search unit is configured for:
locally searching for a source cell reselection parameter threshold for a UE being served in the target cell to reselect to be served in the source cell;
when there is no such threshold, triggering the reselecting unit;
when there is such a threshold, triggering the second determining unit;
the reselecting unit is configured for:
allowing the UE being served in the source cell to reselect to be served in the target cell;
the second determining unit is configured for:
determining whether a source cell reselection parameter corresponding to the source cell reselection parameter threshold measured for the source cell by the UE is less than or no greater than the source cell reselection parameter threshold;
when the source cell reselection parameter is less than or no greater than the source cell reselection parameter threshold, triggering the reselecting unit to allow the UE being served in the source cell to reselect to be served in the target cell.

9 more elements

Dependencies are inferred from the claim text.

Cell Reselection Method and Apparatus, Base Station

Life of this patent

Cell Reselection Method and Apparatus, Base Station

Life of this patent

Abstract

Claims12