Physical cell identifier (PCI) adaptation to mitigate interference in heterogeneous cellular network
US8804561B2 · kind B2 · utility
3Cited by
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26Claims
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Key dates
| Filing date | Dec 8, 2011 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | May 26, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/045
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A first radio network node (HBS1) adapts its physical cell identifier (PCI1) based on a comparison of its PCI1 to a second PCI (PCI2) used by a neighboring interfering second radio network node (e.g., another HBS2 or a macro node). The first radio network node HBS1 determines the second PCI based on one or more radio measurements performed on a cell 402 and/or on a UE 404 served by the second node. The adaptation of the cell identifier PCI1 is used for one or more radio network management tasks, e.g., resource management such as interference mitigation in a heterogeneous network, radio network planning, etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.