| CPC H04W 36/08 (2013.01) [H04W 48/20 (2013.01); H04W 74/0833 (2013.01); H04W 74/08 (2013.01)] | 12 Claims |
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1. A method for cell selection and/or cell reselection handling by a user equipment attempting to connect to a public land mobile network using a random access channel of a base station entity, wherein the public land mobile network comprises a first radio cell with a first base station entity and a second radio cell with a second base station entity, the method comprising:
performing, by the user equipment, a cell selection and/or cell reselection procedure wherein both the first radio cell and the second radio cell fulfill a cell selection criterion with the first radio cell being prioritized relative to the second radio cell;
attempting, by the user equipment, to connect to the public land mobile network using a random access channel of the first base station entity, and failing to connect to the public land mobile network using the random access channel of the first base station entity; and
performing, by the user equipment, a modified cell selection and/or cell reselection procedure, under unchanged radio conditions regarding the first base station entity, the second base station entity, and the user equipment, whereby the user equipment attempts to connect to the public land mobile network using a random access channel of the second base station entity;
wherein performing the modified cell selection and/or cell reselection procedure further comprises: applying penalty information with respect to the first radio cell so as to lower a priority of the first radio cell relative to a priority of the second radio cell, wherein the penalty information comprises offset information, and wherein applying the penalty information reduces at least one of the following values with respect to the first radio cell:
the cell selection RX level value (Srxlev),
the cell selection quality value (Squal),
the measured cell RX level value (RSRP), or
the measured cell quality value (RSRQ);
wherein the penalty information is transmitted from the first base station entity to the user equipment, wherein the penalty information comprises penalty timer information, wherein the penalty information is applied during a penalty time interval indicated by the penalty timer information, and wherein the penalty information is configured in an individual cell-specific manner such that each penalized cell of a plurality of penalized cells is configurable with an individual penalty timer;
wherein the method further comprises, in response to successfully accessing a penalized cell having a penalty applied thereto, removing the penalty from the successfully accessed penalized cell.
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