Method and apparatus for processing paging indicator bits...

H - Electricity – 04 – B

Patent

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H04B 1/707 (2006.01) H04B 1/16 (2006.01) H04Q 7/38 (2006.01) H04Q 7/32 (2006.01)

Patent

CA 2423435

Techniques to process data sporadically transmitted at designated times in a wireless communication system, such as paging indicator (PI) bits on the quick paging channel in cdma2000. These techniques support a sleep cycle that may start at virtually anytime and having a sleep duration selected based on a fine time increment. The increment is selected such that the finger processors and symbol combiner of a rake receiver may be easily moved to the proper positions upon waking up from a sleep. Techniques are also provided to align the symbol combiner timing to that of a particular multipath in the received signal, if necessary. With these techniques, a terminal may perform a sleep between a pair of assigned PI bits and may wake up and process a single PI bit.

L'invention concerne des techniques relatives au traitement des données transmises sporadiquement à des périodes déterminées dans un système de communication sans fil, du type bits indicateurs de recherche de personne sur le canal de recherche rapide en accès multiple par code de répartition cdma2000. Ces techniques font intervenir un cycle d'attente pouvant démarrer virtuellement à tout moment, dont la durée est établie sur la base d'une incrémentation de temps fine. L'incrément est déterminé de sorte que les processeurs en forme de doigt et le combineur de signaux d'un récepteur Rake puissent se déplacer facilement vers les positions adéquates à la sortie d'un cycle d'attente. L'invention concerne également des techniques permettant d'aligner la synchronisation du combineur de signaux avec celle d'une configuration multitrajet dans le signal reçu, le cas échéant. Les techniques en question permettent à un terminal de passer en attente entre une paire de bits indicateurs de recherche de personne attribués, et de sortir de l'attente pour traiter un bit indicateur unique de recherche.

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