METHOD OF DEEP PAGING

METHOD OF DEEP PAGING

PROBLEM TO BE SOLVED: To provide a method of deep paging which does not require a high powered paging channel. SOLUTION: The method includes the steps of: generating a paging channel message which is combined with a Walsh sequence having a length equal to or greater than 2m; and transmitting the pag...

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Bibliographische Detailangaben
1. Verfasser: SCHIFF LEONARD N
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
MULTIPLEX COMMUNICATION
TRANSMISSION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
WIRELESS COMMUNICATIONS NETWORKS
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a method of deep paging which does not require a high powered paging channel. SOLUTION: The method includes the steps of: generating a paging channel message which is combined with a Walsh sequence having a length equal to or greater than 2m; and transmitting the paging channel message at a data rate less than 480 bits/sec (bps). By transmitting the page channel message at a low data rate and integrating collected energy over a period longer by a factor on the order of 1,000, the message is able to penetrate buildings and other structures or high attenuation environments, thereby allowing one to successfully page a user terminal that is inside such a structure or area. Preferably, the paging channel message is formed using an auxiliary Walsh sequence on the order of 65536 chips in length, and the data rate is less than 10 bps. COPYRIGHT: (C)2011,JPO&INPIT