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. 22, 2015

Filed:

Jul. 28, 2009
Applicants:

Ying LI, Garland, TX (US);

Zhouyue Pi, Richardson, TX (US);

Farooq Khan, Allen, TX (US);

Baowei Ji, Plano, TX (US);

Inventors:

Ying Li, Garland, TX (US);

Zhouyue Pi, Richardson, TX (US);

Farooq Khan, Allen, TX (US);

Baowei Ji, Plano, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 1/66 (2006.01); H04L 1/00 (2006.01); H03M 13/09 (2006.01); H04J 13/10 (2011.01); H04L 5/00 (2006.01); H04L 25/03 (2006.01); H04L 27/26 (2006.01);
U.S. Cl.
CPC ...
H04L 1/0061 (2013.01); H04L 1/0072 (2013.01); H03M 13/09 (2013.01); H04J 13/10 (2013.01); H04L 5/0026 (2013.01); H04L 5/0048 (2013.01); H04L 25/03866 (2013.01); H04L 27/2655 (2013.01); H04L 2001/0093 (2013.01);
Abstract

A system and method for identifying the accessibility of femto base stations in a communication system. The system and method includes a plurality of macro base stations, open-access femto base stations and femto base stations with different subscriber groups. At least one of the base stations includes a transmitter configured to apply a base station identifier, such as a closed subscription group identifier, as a cyclic redundancy check (CRC) mask to XOR (exclusive OR) the CRC of a broadcast channel communication or an input to generate a scrambling sequence to the broadcast channel communication.


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