Patent · US Active

Subchannel allocation apparatus

US8031584B2 · kind B2 · utility

1Cited by

0References

27Claims

0Family size

Assignee

NTT DOCOMO, INC. · JP

Inventors

Christian Guthy · Munich, DE
Wolfgang Utschick · Ingolstadt, DE
Josef Nossek · Iffeldorf, DE
Guido Dietl · Munich, DE

Key dates

Filing date	May 22, 2008
Grant date	Oct 4, 2011
Priority date	—
Expiry date	Aug 2, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH04B7/0443
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

Subchannel allocation apparatus for allocating subchannels of a MIMO radio channel to a plurality of users, the MIMO radio channel having a first number of subchannels, each subchannel having a transmission capacity. The subchannel allocation apparatus includes a subspace determiner for determining a subspace of the MIMO radio channel, the subspace having a second number of subchannels, the second number being lower than the first number and each subchannel of the second number of subchannels having a higher transmission capacity than the subchannel with the lowest transmission capacity of the first number of subchannels. The subchannel allocation apparatus further includes a subchannel allocator responsive to the subspace determiner for allocating a subchannel from the second number of subchannels of the subspace to a user based on an allocation metric.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.