Resolving identification code ambiguities in wireless access networks
AssigneeNokia Solutions and Networks Oy
InventorDan Wellington
Life of this patent
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Abstract
Systems and methods for resolving identification code ambiguities in wireless access networks are described. In some embodiments, the systems and methods access an identification code associated with a cell in a wireless access network that is detected by a mobile device, determine a probability score for candidate cells that are assigned the identification code in the wireless access network, the probability score based on a likelihood that a candidate cell is a cell in the wireless access network associated with the identification code detected by the mobile device, and select one of the candidate cells as an origination cell of the identification code detected by the mobile device based on the determined probability scores.
Claims14
A method for resolving identification code ambiguities in a wireless access network, the method comprising:
- accessing an identification code associated with a cell in the wireless access network that is detected by a mobile device;
- determining a probability score for candidate cells that are assigned the identification code in the wireless access network, the probability score based on a likelihood that a candidate cell is a cell in the wireless access network associated with the identification code detected by the mobile device;
- and
- selecting one of the candidate cells as an origination cell of the identification code detected by the mobile device based on the determined probability scores,
- wherein determining a probability score for candidate cells that are assigned identification code in the wireless access network includes:
- calculating a number of intra-frequency neighbors shared between a predetermined source cell and the candidate cell;
- calculating a number of scrambling codes shared between the predetermined source cell and the candidate cell;
- determining whether the predetermined source cell is on a neighbor list of the candidate cell;
- determining whether the predetermined source cell is on a detected set report of the candidate cell;
- and
- calculating an inverse of a distance or geoscore between the predetermined source cell and the candidate cell.
A cellular telecommunications system, comprising:
- a network resource controller with a memory and at least one processor that causes the cellular telecommunications system to perform operations to disambiguate a scrambling code assigned to cells in a wireless access network, the operations comprising:
- accessing an identification code associated with a cell in the wireless access network that is detected by a mobile device;
- determining a probability score for candidate cells that are assigned the identification code in the wireless access network, the probability score based on a likelihood that a candidate cell is the cell in the wireless access network associated with the identification code detected by the mobile device;
- and
- selecting one of the candidate cells as an origination cell of the identification code detected by the mobile device based on the determined probability scores,
- wherein determining a probability score for candidate cells that are assigned the identification code in the wireless access network includes:
- calculating a number of intra-frequency neighbors shared between a predetermined source cell and the candidate cell;
- calculating a number of scrambling codes shared between the predetermined source cell and the candidate cell;
- determining whether the predetermined source cell is on a neighbor list associated with the candidate cell;
- determining whether the predetermined source cell is on a detected set report associated with the candidate cell;
- and
- calculating an inverse of a distance or geoscore between the predetermined source cell and the candidate cell.
A non-transitory computer-readable storage medium whose contents, when executed by a computing system, cause the computing system to perform operations for disambiguating a scrambling code assigned to cells in a wireless access network, the operations comprising:
- determining a probability score for candidate cells that are assigned the scrambling code in the wireless access network by:
- calculating a number of intra-frequency neighbors shared between a predetermined source cell and the candidate cell;
- calculating a number of scrambling codes shared between the predetermined source cell and the candidate cell;
- determining whether the predetermined source cell is on a neighbor list associated with the candidate cell;
- determining whether the predetermined source cell is on a detected set report associated with the candidate cell;
- and
- calculating an inverse of a distance or geoscore between the predetermined source cell and the candidate cell;
- and
- selecting a candidate cell having a determined probability score above a disambiguation threshold score as an origination cell of the scrambling code.
Dependencies are inferred from the claim text.