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.

Date of Patent:
Feb. 28, 2017

Filed:

Aug. 12, 2014
Applicant:

Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;

Inventors:

Young-Han Nam, Plano, TX (US);

Jianzhong Zhang, Plano, TN (US);

Jin-Kyu Han, Allen, TX (US);

Lingjia Liu, Overland Park, KS (US);

Assignee:

SAMSUNG ELECTRONICS CO., LTD., Suwon-si, Gyeonggi-Do, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04W 72/04 (2009.01); H04B 7/04 (2006.01); H04B 7/06 (2006.01); H04L 5/00 (2006.01); H04L 1/00 (2006.01); H04W 8/26 (2009.01); H04W 72/12 (2009.01); H04W 76/02 (2009.01); H04W 88/08 (2009.01); H04W 88/02 (2009.01);
U.S. Cl.
CPC ...
H04W 72/042 (2013.01); H04B 7/043 (2013.01); H04B 7/0452 (2013.01); H04B 7/0689 (2013.01); H04L 1/0031 (2013.01); H04L 1/0061 (2013.01); H04L 5/0023 (2013.01); H04L 5/0051 (2013.01); H04L 5/0053 (2013.01); H04L 5/0094 (2013.01); H04L 1/0025 (2013.01); H04W 8/26 (2013.01); H04W 72/12 (2013.01); H04W 76/02 (2013.01); H04W 88/02 (2013.01); H04W 88/08 (2013.01);
Abstract

A base station includes a transmit path circuitry to scramble CRC bits of a DCI format using a C-RNTI for dynamic scheduling, and scramble the CRC bits of the DCI format using an SPS C-RNTI for semi-persistent scheduling. If C-RNTI is used, the circuitry generates a downlink transmission grant using the DCI format being a fallback format to indicate a transmit diversity transmission scheme or a single-layer beamforming scheme, and uses the DCI format being a dual-layer beamforming format to indicate a dual-DRS port transmission scheme or a single-DRS port transmission scheme. If SPS C-RNTI is used, the circuitry generates a downlink transmission grant using the DCI format being the fallback format to indicate a single-DRS port transmission scheme, and uses the DCI format being the dual-layer beamforming format to indicate a dual-DRS port transmission scheme or a single-DRS port transmission scheme.


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