CN101753188A

4G

Title

Channel rank estimation method system and device during multi-stream beamforming transmission

Application Number:

CN200810240391

Publication Date:

23-06-2010

Family ID:

Application Date:

19-12-2008

Declaring Company:

Publication Country:

US

Priority Date:

19-12-2008

Title

Channel rank estimation method system and device during multi-stream beamforming transmission

Application Number:

CN200810240391

Family ID:

Publication Country:

US

Publication Date:

23-06-2010

Application Date:

19-12-2008

Priority Date:

19-12-2008

Declaring Company:

Abstract  Abstract

The invention provides a channel rank estimation method during multi-stream beamforming transmission, which comprises the following steps: a base station receives a CQI which is fed back by a user equipment UE and detected by the UE according to a common pilot; the base station estimates uplink channel information according to an uplink detection pilot signal sent by the UE; and the base station obtains the rank of a channel according to the CQI fed back by the UE and the estimated uplink channel information. The estimation method can effectively solve the estimation of the rank value during the multi-stream beamforming transmission, further support the rank self-adaptive transmission during the multi-stream beamforming transmission and improve the flexibility of a system.

Note:

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.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.