H - Electricity – 04 – W
Patent
H - Electricity
04
W
H04W 24/00 (2009.01) H04W 60/04 (2009.01)
Patent
CA 2541905
This disclosure is directed to power estimation techniques for use by a subscriber unit of a frequency division multiple access (FDMA) system during the cell selection process. The power estimation techniques recognize that adjacent cells, i.e., adjacent in terms of frequency, often have slight overlap. Thus, the power from a signal associated with one cell can cause power to be detected in an adjacent cell, even if no signal is actually present in the adjacent cell. In accordance with this disclosure, techniques are described for identifying, reducing or eliminating the detection of false positives in such adjacent cells. By identifying, reducing or eliminating the detection of false positives, the cell selection process can be accelerated and additional processing of false positive signals in such adjacent cells can be avoided.
La présente invention concerne des techniques d'évaluation de puissance pour une unité d'abonné d'un système AMRF (Accès Multiple par Répartition de Fréquences) pendant le processus de sélection de cellules. Les techniques d'évaluation de puissance reconnaissent que les cellules adjacentes, en terme de fréquences, présentent généralement un léger chevauchement. Ainsi, la puissance provenant d'un signal associé à une cellule peut provoquer la détection de puissance dans une cellule adjacente, même en l'absence de tout signal alors dans cette cellule adjacente. L'invention concerne ainsi plus particulièrement des techniques permettant d'identifier, réduire ou éliminer la détection de signaux faussement positifs dans de telles cellules adjacentes. Cela permet d'accélérer le processus de sélection de cellule, et d'éviter de traiter d'autres signaux faussement positifs erronés dans de telles cellules adjacentes.
Rick Roland
Wilborn Thomas B.
Qualcomm Incorporated
Smart & Biggar
LandOfFree
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