Hybrid phone and method of acquiring channel in the hybrid phone
View Patent ↗A hybrid phone to acquire channels has a first communication mode supporting voice/low-rate data communications and a second communication mode supporting high-rate data communication, and includes a phone control unit having a communication processor controlling voice/data communications according to programs stored in a memory. The communication processor includes a channel acquisition processor attempting to acquire channels for the first and second communication modes. If the channel acquisition processor cannot acquire a channel for the second communication mode within a predetermined time, the channel acquisition processor stops attempting to acquire the channel for the second communication mode and reattempts to acquire the channel for the first communication mode. If the channel acquisition processor acquires the channel for the first communication mode, the channel acquisition processor reattempts to acquire the channel for the second communication mode.
1. A mobile terminal to support at least two communication modes, the mobile terminal comprising:
a wireless communication unit to communicate signals via an antenna; a memory to store an execution program and data; and a channel acquisition processor to acquire a channel for a first communication mode and change the first communication mode to an idle state if the channel is acquired, and then to acquire a channel for a second communication mode within a predetermined time interval according to the execution program in the memory,
wherein if the predetermined time interval elapses, the channel acquisition processor stops acquiring the channel for the second communication mode and reattempts to acquire the channel for the first communication mode, and
wherein the first communication mode includes at least one of a voice and low-rate data communication mode and the second communication mode includes a high-rate data communication mode.
2. The mobile terminal of claim 1 , wherein the channel acquisition processor attempts to acquire at least one of the channel for the first communication mode and the channel for the second communication mode according to a channel list of each communication mode contained in a Preferred Roaming List (PRL) file stored in the memory.
3. A method for acquiring at least one channel in a mobile terminal, the method comprising:
attempting to acquire a channel for a first communication mode;
switching the first communication mode to an idle state if the channel for the first communication mode is acquired;
attempting to acquire a channel for a second communication mode within a predefined time;
switching the second communication mode to an idle state if the channel for the second communication mode is acquired; and
stopping attempting to acquire the channel for the second communication mode if the predefined time is elapsed, and reattempting to acquire the channel for the first communication mode,
wherein the first communication mode includes at least one of a voice and low-rate data communication mode and the second communication mode includes a high-rate data communication mode.
4. The method of claim 3 , wherein at least one of the attempting to acquire the channel for the first communication mode and the attempting to acquire the channel for the second communication mode further comprises attempting to acquire the channel for the first communication mode and the channel for the second communication mode, respectively, according to a channel list of each communication mode contained in a Preferred Roaming List (PRL) file stored in a memory of the mobile terminal.