Abstract
Vertical sectorization is discussed in which several vertical sectors are dynamically formed based on user equipment (UE) feedback in the elevation domain. For example UEs with similar feedback in the elevation domain may be grouped to form a cluster for which a base station will form a cluster-specific vertical beam. Feedback may be implemented using open-loop schemes where UEs feedback an index of the best beams observed or close-loop schemes where UEs feedback an elevation metric such as an elevation rank indicator precoding matrix indicator (PMI) or channel eigen vector. In such aspects vertical sectors are only formed when necessary and less interference may result between vertical sectors if carefully designing orthogonal sector beams. Moreover lower overhead and better speed/density performance may be achieved compared against UE-specific elevation beamforming.
Technologies
Resource configuration
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Wireless communication
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SUMMARY
ClaimChart-WO2014190547A1-STO
Patent number:WO2014190547A1
Claim Chart Type : SEP Claim Chart
Price: 200 €
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
The information in grey was provided by the patent holder
The information in purple was extracted from the FrandAvenue
Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
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