Method and apparatus for system determination in a multi-mode subscriber station
First Claim
1. An apparatus for providing mobile communications in both a code division multiple access (CDMA) communication system and an analog communication system, comprising:
- a system preferences memory area for storing system preferences;
a CMDA channel memory area for storing a list of CDMA channels;
a user preferences memory area for storing a list of user preferences;
analog modulation and demodulation and processing means for transmitting and receiving information signals in accordance with an analog format wherein said analog format is determined in accordance with entry mode parameters;
CDMA modulation and demodulation and processing means for transmitting and receiving said information signals in accordance with a CDMA format wherein said CDMA format is determined in accordance with said entry mode parameters; and
system determination means for selecting said entry mode parameters and for selectively providing said transmission format to said analog modulation and demodulation and processing means and said CDMA modulation and demodulation and processing means in response to said system preferences, said user preferences, and said CDMA channels.
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Abstract
A method and apparatus for selecting a communication system in a multi-mode subscriber station. In the exemplary embodiment, the subscriber station capable of operating in both CDMA and analog modes comprises a analog modulation and demodulation and processing element and a CDMA modulation and demodulation and processing element and a system determination element. System determination element examines exit parameters provided by the communication element exited and determines the next system upon which to attempt acquisition in accordance with a system preferences table, a CDMA channel table and a non-volatile memory element.
195 Citations
17 Claims
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1. An apparatus for providing mobile communications in both a code division multiple access (CDMA) communication system and an analog communication system, comprising:
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a system preferences memory area for storing system preferences; a CMDA channel memory area for storing a list of CDMA channels; a user preferences memory area for storing a list of user preferences; analog modulation and demodulation and processing means for transmitting and receiving information signals in accordance with an analog format wherein said analog format is determined in accordance with entry mode parameters; CDMA modulation and demodulation and processing means for transmitting and receiving said information signals in accordance with a CDMA format wherein said CDMA format is determined in accordance with said entry mode parameters; and system determination means for selecting said entry mode parameters and for selectively providing said transmission format to said analog modulation and demodulation and processing means and said CDMA modulation and demodulation and processing means in response to said system preferences, said user preferences, and said CDMA channels. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 14)
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10. A method for providing mobile communications in both a code division multiple access (CDMA) communication system and an analog communication system, said method comprising the steps of:
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storing system preferences; storing a list of CDMA channels; storing a list of user preferences; communicating information signals in accordance with an analog format wherein said analog format is determined in accordance with entry mode parameters; communicating said information signals in accordance with a CDMA format wherein said CDMA format is determined in accordance with said entry mode parameters; and determining said entry mode parameters in accordance with a set of system determination rules, user preferences and an exit reason from a system in which acquisition was last attempted. - View Dependent Claims (11, 12, 13, 15, 16, 17)
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Specification