Wireless terminal having digital radio processing with automatic communication system selection capability
First Claim
1. A wireless radio telephone terminal with digital radio processing and having equipment for determining an existence of and accessing selected communication systems from a plurality of wireless communication systems;
- comprising;
an antenna for interfacing with an air interface of the wireless communication systems;
acoustic input/out devices for audio communications with a user of the wireless terminal;
programmable processor means for processing radio signals digitally;
first and second analog-digital conversion means each connecting the programmable processor means to the antenna and acoustic devices, respectively;
a stored program storage source connected to the programmable processor means and including stored instructions for controlling signal processing in the programmable processor means;
the stored instructions including;
the steps ofupon power up performing a plurality of preselected automatic interrogation steps for determining the presence of specified air interface systems of differing communication systems;
acknowledging the presence of existing ones of the specified air interface systems;
setting operating characteristics of the wireless terminal to operate in one of the specified air interface systems;
monitoring paging signals and determining operating features desired;
accessing the desired system and monitoring call process, andterminating at call completion.
4 Assignments
0 Petitions
Accused Products
Abstract
A wireless terminal utilizing digital radio processing utilizes stored program control to allow the wireless terminal to operate in a plurality of disposed wireless communication systems. In particular, the digital radio processing with appropriate stored program control operates in a plurality of wireless communication system by selectively and controllably enabling selection of frequency, channel bandwidth, modulation type, channel coding and source coding operational components appropriate to the communication system that the wireless unit is to operate in. A function control enables the wireless terminal to actively seek out and search for availability of wireless communications system in which it may operate.
68 Citations
16 Claims
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1. A wireless radio telephone terminal with digital radio processing and having equipment for determining an existence of and accessing selected communication systems from a plurality of wireless communication systems;
- comprising;
an antenna for interfacing with an air interface of the wireless communication systems; acoustic input/out devices for audio communications with a user of the wireless terminal; programmable processor means for processing radio signals digitally; first and second analog-digital conversion means each connecting the programmable processor means to the antenna and acoustic devices, respectively; a stored program storage source connected to the programmable processor means and including stored instructions for controlling signal processing in the programmable processor means; the stored instructions including; the steps of upon power up performing a plurality of preselected automatic interrogation steps for determining the presence of specified air interface systems of differing communication systems; acknowledging the presence of existing ones of the specified air interface systems; setting operating characteristics of the wireless terminal to operate in one of the specified air interface systems; monitoring paging signals and determining operating features desired; accessing the desired system and monitoring call process, and terminating at call completion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- comprising;
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13. A wireless communication device, comprising:
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digital radio processing circuitry with an antenna connected to an RF processing circuitry; analog/digital conversion circuitry connecting the RF processing circuitry to digital band processing radio circuitry; the band processing circuitry connected to digital baseband processing circuitry; digital/analog conversion circuitry connecting the digital baseband processing circuitry to audio input and output; an analog user interface; memory circuitry containing a stored program having instructions for controlling the digital band processing circuitry, and the digital baseband processing circuitry; the instruction including the steps of; scanning an air interface for existence of air interfaces of wireless communication systems; tuning to acquire access and formatting the digital radio processing circuitry according to the requirement of a selected air interface; and processing calls within the selected air interface. - View Dependent Claims (14, 15, 16)
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Specification