H - Electricity – 04 – W
Patent
H - Electricity
04
W
H04W 36/30 (2009.01)
Patent
CA 2495859
Techniques for limiting cell reselection in response to a variable channel are disclosed. In one aspect, a measurement of received pilot power from a base station is used as an indication of channel quality. In another aspect, hysteresis is applied to limit cell reselection, wherein the hysteresis is greater in relatively higher quality channel environments and lower in relatively lower channel quality environments. Various other aspects are also presented. These aspects have the benefit of reducing cell reselection, thus increasing time spent in low-power mode, thereby reducing power consumption and increasing standby time.
L'invention concerne des techniques destinées à limiter la resélection de cellules en réponse à un canal variable. Dans un aspect, une mesure d'une puissance pilote reçue en provenance d'une station de base est utilisée comme une indication de la qualité du canal. Dans un autre aspect, on applique une hystérésis en vue de limiter la resélection de cellules, cette hystérésis étant supérieure dans les environnements à canaux de qualité relativement supérieure et inférieure dans les environnements à canaux de qualité relativement inférieure. L'invention concerne plusieurs autres aspects. Ces aspects présentent l'avantage de réduire la resélection de cellules, ce qui permet d'augmenter le temps passé en mode de faible puissance, d'où une réduction de la consommation d'énergie et une augmentation du temps d'attente.
Amerga Messay
Halbhavi Sudhir
Qualcomm Incorporated
Smart & Biggar
LandOfFree
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