Qualcomm Incorporated

James A Hutchinson

Simon Turner

Jan C Ault

Techniques for performing timer-based sleep to extend sleep time and thus battery life for a terminal in a wireless communication system. The likelihood of data traffic may be related to recent usage. If recent usage indicates that data traffic is unlikely, then the terminal can continue to maintain the link but monitor the signals from the system at a reduced rate. In one method, the probability of data traffic for the terminal is initially estimated (e.g., based on time since last activity and a particular usage model). A timer value is then determined based on the estimated probability of data traffic. The timer value may be modified based on an event, which may relate to link maintenance, hand-off, and so on. Sleep is then performed for the duration corresponding to the unmodified or modified timer value and may extend past one or more designated paging slots.

Timer-based sleep for terminals in wireless communication systems

An in-bound directed telephone station, and a method of directing a telephone station based on an in-bound call, are disclosed. The inbound directed telephone station includes a handset having a call receiver and a call originator, a first memory location, coupled to the call receiver, and a comparator coupled to the first memory location and to the call receiver. Upon receipt of an inbound call by the call receiver, the comparator compares an identifier of the in-bound call to an identifier list in the first memory location and terminates receipt of the in-bound call by the call receiver. Upon locating a match between the identifier list and the identifier of the in-bound call, the comparator automatically activates the call originator to perform a function associated with the in-bound call identifier. The method includes receiving a call at the telephone, activating an identification system based on the receiving, which identification system identifies the origination of the in-bound communication, associating a function with the in-bound communication based on the origination, terminating the in-bound communication after the activating of the identification system, and automatically performing, by the telephone, of the function associated with the in-bound communication.

In-bound call directed telephone station and method of directing a telephone station based on an in-bound call

A system and method for processing wideband data within digital FM transceiver. A digital FM demodulator within the transceiver produces a demodulated information signal in response to the FM signal. The digital FM receiver also includes a wideband message processing section for recovering message information from the demodulated information signal. A word register circuit within the wideband message processing section stores one or more repetitions of a message word recovered from the demodulated information signal. During operation of the FM receiver in a control channel mode, a dotting detector within the wideband processing section is used for detecting a first dotting sequence within the demodulated information signal. Similarly, the dotting detector serves to detect a second dotting sequence within the demodulated information signal during operation in a voice channel mode. A word sync sequence is also identified within the demodulated information signal prior to storage of the one or more repetitions of the received message word within the word register circuit. A reconstructed message word is then generated by comparing corresponding bits within the one or more repetitions of the one message word. A message prefilter determines whether a processor interrupt should be generated by ascertaining whether the reconstructed message word is of a predefined type. A digital FM transmitter of the transceiver is controlled on the basis of busy-idle channel status information recovered from the demodulated information signal.

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San Diego, CA, United States of America

James A Hutchinson