CN105284059A

5G,4G,3G,2G

Title

Subspace tracking in full dimension MIMO

Application Number:

CN2014830633

Publication Date:

27-01-2016

Current Assignee:

NOT AVAILABLE

Family ID:

52115514

Application Date:

27-06-2014

Declaring Company:

APPLE INC , INTEL CORP

Publication Country:

US

Priority Date:

28-06-2013

View on Espacenet goto-link

Title

Subspace tracking in full dimension MIMO

Application Number:

CN2014830633

Family ID:

52115514

Publication Country:

US

Publication Date:

27-01-2016

Application Date:

27-06-2014

Priority Date:

28-06-2013

Current Assignee:

NOT AVAILABLE

Declaring Company:

APPLE INC , INTEL CORP

View on Espacenet goto-link

Abstract  Abstract

In some examples claims a reduced amount of bandwidth consumption to the reference signal method system apparatus and machine-readable medium. In some examples this is by finding the best subspace of all active UE in the cell and transmitting the reference signal to the sub space. In some examples the UE can use second order statistics to calculate the best subspace projection channel then the project channel can be fed back to the eNodeB. the projection channel best sub space of the UE and the eNodeB is used for transform codebook and the channel direction of the projection channel received by a code word.

Disclosed in some examples are methods systems devices and machine readable mediums which reduce the amount of bandwidth consumed by the reference signals. In some examples this is achieved by finding the optimal subspace containing all the active UEs in the cell and transmitting reference signals to that subspace. In some examples second order statistics may be utilized to calculate a projected channel to the optimal subspace at the UE and then feeding this back to the eNodeB. The projected channel to optimal subspace may be utilized at the UE and the eNodeB to transform the codebook and align the codewords with the channel direction.

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

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