Patent ID: 6901276
Filing Date: 2005-05-31
Classification: H04W,Y02D

Abstract:
1. In a portable computer system comprising a digital signal processor (DSP) and a main processor, a method for establishing a wireless connection between said portable computer system and a wireless network, said method comprising: scanning a plurality of broadcast channels used by said wireless network, wherein said scanning is performed under direction of said DSP while said main processor remains in said low power mode; determining whether a broadcast channel is acceptable for said wireless connection, wherein said determining is executed by said DSP while said main processor remains in said low power mode; said DSP waking up said main processor provided a broadcast channel acceptable for said wireless connection is identified and otherwise said DSP repeating said scanning at periodic time intervals until said broadcast channel acceptable for said wireless connection is identified, wherein said DSP is placed in a lower power sleep mode between each said scanning; and said DSP identifying to said main processor said broadcast channel acceptable for said wireless connection.