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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10707948 B1

PDFFull Text
Date of Patent:
Jul. 07, 2020

Filed:

Jan. 16, 2016

Symmetric and full duplex relay in wireless systems

Applicant:

Ping Liang, Newport Coast, CA (US);

Inventors:

Ping Liang, Newport Coast, CA (US);

Junyang Shen, Irvine, CA (US);

Yiming Ma, Xuzhou, CN;

Lian Yin Zhang, Vancouver, CA;

Assignee:

RF DSP Inc., Irvine, CA (US);

Attorneys:

Guosheng Wang

United States Research and Patent Firm

Primary Examiner:

Mark H Rinehart

Assistant Examiner:

Natali Pascual Peguero

Int. Cl.
CPC ...
H04B 7/06 (2006.01); H04B 7/14 (2006.01); H04L 27/26 (2006.01); H04L 5/14 (2006.01); H04B 7/0452 (2017.01); H04B 7/155 (2006.01);
U.S. Cl.
CPC ...
H04B 7/14 (2013.01); H04B 7/0452 (2013.01); H04B 7/0617 (2013.01); H04B 7/15528 (2013.01); H04L 5/14 (2013.01); H04L 27/2605 (2013.01);
Abstract

This invention presents methods comprising a BS with a plural of antennas capable of beamforming two or more spatial multiplexed streams with two or more antennas on UEs; using one or more of relays to project the capacity of the BS to cover one or more UEs; the BS estimating the uplink channel state information (CSI) between each antenna on the BS and each antenna on the one or more UEs using pilots transmitted from the UE antennas in the presence of the relays which amplifies and forwards the one or more pilots; and, the BS making use of the perseverance of the reciprocity of the over the air channel by the symmetry of the DL and UL paths of the relays to obtain the downlink CSI using the estimated uplink CSI that includes the effect of the relays.

Find Patent Forward Citations

Liang, Ping. (2020). Symmetric and full duplex relay in wireless systems (U.S. Patent No. 10707948). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10707948

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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