Method for saving power in a wireless telephone

A method for saving power of a battery in a wireless telephone, comprising the steps of:

• registering a voice signal and a data signal;
• alternately searching a voice channel and a data channel;
• increasing a search period of the data channel if a data signal is received within a predetermined search period in the data channel searching step;
• and
• decreasing the search period of the data channel if no data signal is received within the predetermined search period in the data channel searching step.

A method for saving battery power in a wireless telephone which receives mode information from a base station in which the mode information comprising information on a first mode where only a voice channel is searched, information on a second mode where a voice channel and a data channel are alternately searched while changing a search period of the data channel, and information on a third mode where a voice channel and a data channel are alternately searched at stated periods are registered, the method comprising the steps of:

• (a) searching mode information transmitted from the base station;
• (b) searching a voice channel upon receiving first mode information from the base station;
• (c) alternately searching a voice channel and a data channel while changing a search period of the data channel, upon receiving second mode information from the base station;
• and
• (d) alternately searching the voice channel and the data channel at stated periods, upon receiving third mode information from the base station.