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:
Sep. 11, 2018

Filed:

Sep. 20, 2013
Applicant:

Blackberry Limited, Waterloo, CA;

Inventors:

Vahid Pourahmadi, Ottawa, CA;

Yongkang Jia, Ottawa, CA;

Yi Song, Plano, TX (US);

Siva Dharshan Muruganathan, Stittsville, CA;

Yufei Wu Blankenship, Kildeer, IL (US);

Hua Xu, Ottawa, CA;

Robert Mark Harrison, Grapevine, TX (US);

Shiwei Gao, Nepean, CA;

Masoud Ebrahimi Tazeh Mahalleh, Ottawa, CA;

Assignee:

Blackberry Limited, Waterloo, Ontario, CA;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04W 72/04 (2009.01); H04W 52/04 (2009.01); H04L 5/00 (2006.01); H04W 16/10 (2009.01); H04W 52/14 (2009.01); H04W 52/24 (2009.01); H04W 52/28 (2009.01); H04W 52/44 (2009.01); H04W 84/04 (2009.01); H04W 16/32 (2009.01);
U.S. Cl.
CPC ...
H04W 72/0453 (2013.01); H04L 5/0035 (2013.01); H04L 5/0041 (2013.01); H04L 5/0073 (2013.01); H04L 5/0092 (2013.01); H04W 16/10 (2013.01); H04W 52/04 (2013.01); H04W 52/143 (2013.01); H04W 52/244 (2013.01); H04W 52/247 (2013.01); H04W 52/281 (2013.01); H04W 52/44 (2013.01); H04W 16/32 (2013.01); H04W 84/045 (2013.01);
Abstract

Systems, methods, and apparatuses for using band-limited subframes in wireless communication networks are provided. During the band-limited subframes, the macro cell base station may mute its transmission or transmit at a low power over some frequency sub-band, while transmitting at a normal or higher power over other frequency sub-band. Correspondingly, the small cell base station may communicate with UEs within its coverage at the frequency sub-band that the macro cell base station transmits at a low power. The band-limited subframe enables the small cell base station to communicate with the UE with reduced interference, and in the meantime, increases the throughput of macro cell base station as it does not require the macro cell base station to completely mute its transmission during the band-limited subframe.


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