METHOD FOR DEEP PAGING

METHOD FOR DEEP PAGING

PROBLEM TO BE SOLVED: To provide a method for deep paging in a communication system employing orthogonal channelizing codes, such as Walsh sequences, of predetermined length m, that does not require a high powered paging channel.SOLUTION: The method includes the steps of generating a paging channel...

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1. Verfasser: SCHIFF LEONARD N
Format: Patent
Sprache:eng
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ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
MULTIPLEX COMMUNICATION
TRANSMISSION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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description PROBLEM TO BE SOLVED: To provide a method for deep paging in a communication system employing orthogonal channelizing codes, such as Walsh sequences, of predetermined length m, that 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 greater than or equal to 2 m, and transmitting the paging channel message at a data rate of less than 480 bits per second (bps). By transmitting the paging channel message at a low data rate and receiving energy over a 1000 times longer period, 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 of 65536 chips in length, and the data rate is less than 10 bps.
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By transmitting the paging channel message at a low data rate and receiving energy over a 1000 times longer period, 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. 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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
MULTIPLEX COMMUNICATION
TRANSMISSION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
title METHOD FOR DEEP PAGING
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