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.:
Date of Patent:
Apr. 01, 2008
Filed:
May. 07, 2004
LI Fung Chang, Holmdel, NJ (US);
Yongqian Wang, Woodbridge, NJ (US);
Huaiyu Zeng, Red Bank, NJ (US);
Xiaoxin Qiu, Bridgewater, NJ (US);
Baoguo Yang, Iselin, NJ (US);
Li Fung Chang, Holmdel, NJ (US);
Yongqian Wang, Woodbridge, NJ (US);
Huaiyu Zeng, Red Bank, NJ (US);
Xiaoxin Qiu, Bridgewater, NJ (US);
Baoguo Yang, Iselin, NJ (US);
Broadcom Corporation, Irvine, CA (US);
Abstract
RF communications received by a wireless terminal from a servicing base station are used to determine the BEP. These RF communications may be in the form of RF bursts that are part of a data frame. The signal to noise ratio (SNR) of the RF burst is determined and a sequence of soft decisions from the RF burst are extracted. The SNR maps to an estimated BEP based upon the modulation format and coding scheme of the RF burst. The soft decisions decode to produce a data block. When the soft decisions decoded favorably, the re-encoded data block produces a sequence of re-encoded decisions. Comparing the re-encoded decisions to the soft decisions yields a re-encoded bit error (RBER). When the decoding is unsuccessful, the BEP is estimated only upon the estimated BEP derived from the SNR. Otherwise, both the estimated BEP and RBER may be used to determine the BEP.