CDMA/TDMA spread-spectrum communications system and method

A method for spread-spectrum processing a plurality of data signals on a carrier frequency, comprising the steps of:

• generating a synchronization-code signal;
• time multiplexing the synchronization-code signal and the plurality of data signals, respectively, to generate the time-multiplexed signal;
• spread-spectrum processing the time-multiplexed signal with a chip-code signal to generate a spread-spectrum-time-multiplexed signal;
• and
• converting the spread-spectrum-time-multiplexed signal to a form suitable for sending over a communications channel.

A method for spread-spectrum processing a spread-spectrum-time-division signal, wherein the spread-spectrum-time-division signal includes a plurality of spread-spectrum signals received sequentially in time from a plurality of remote units, comprising the steps of:

• despreading the spread-spectrum-time-division signal as a time-division signal;
• demultiplexing the time-division signal as a plurality of remote-privacy-encoded-data signals;
• generating a synchronization-code signal;
• generating a timing signal;
• a generating a plurality of remote-privacy-code signals;
• and
• decoding the plurality of remote-privacy-encoded-data signals, respectively, as a plurality of remote-data signals.

A method for spread-spectrum processing a spread-spectrum-time-division signal, wherein the spread-spectrum-time-division signal includes a plurality of spread-spectrum signal received sequentially in time from a plurality of remote units, comprising the steps of:

• despreading the spread-spectrum-time-division signal as a time-division signal;
• demultiplexing the time-division signal as a plurality of remote-privacy-encoded data signals;
• and
• decoding the plurality of remote-privacy-encoded signals as a plurality of remote-data signals, respectively.

A method for receiving a spread-spectrum-time-multiplexed signal, having a synchronization signal and a plurality a privacy-encoded data signals including a first privacy-encoded-data signal, on a first carrier frequency, f.sub.1, and for spread-spectrum transmitting a remote-data signal on a second carrier frequency, f.sub.2, comprising the steps of:

• despreading a spread-spectrum-time-multiplexed signal as a time-multiplexed signal;
• generating, using a synchronization-code signal embedded in the time-multiplexed signal, a timing signal;
• generating, in response to the control signal, a first privacy-code signal;
• decoding the first privacy-encoded-data signal as a first data signal;
• generating, in response to the control signal, a remote-privacy-code signal;
• encoding the remote-data signal with the remote-privacy-code signal as a remote-privacy-encoded-data signal;
• generating a second chip-code signal;
• spread-spectrum processing the remote-privacy-encoded signal with the second chip-code signal as a spread-spectrum signal;
• and
• transmitting the spread-spectrum signal on the second carrier frequency, f.sub.2.

A method for receiving a spread-spectrum-time-multiplexed signal, having a synchronization-code signal and a plurality of privacy-encoded data signals including a first privacy-encoded data signal, at a first carrier frequency, and for spread-spectrum transmitting a remote-data signal at a second carrier frequency, comprising the steps of:

• despreading the spread-spectrum-time-multiplexed signal as a time-multiplexed signal;
• detecting in the time-multiplexed signal the synchronization-code signal and generating a timing signal;
• decoding, using the timing signal, the first privacy-encoded data signal embedded in the time-multiplexed signal as a first data signal;
• encoding, in response to the control signal, the remote-data signal with a remote-privacy-code signal as a remote-privacy-encoded data signal;
• spread-spectrum processing the remote-privacy-encoded data signal with a second chip-code signal to generate a spread-spectrum signal;
• and
• converting the spread-spectrum signal to a form suitable for sending over a communications channel.

A method for receiving a spread-spectrum-time-multiplexed signal, having a synchronization-code signal and a plurality of data signals including a first data signal, at a first carrier frequency, and for spread-spectrum transmitting a remote-data signal at a second carrier frequency, comprising the steps of:

• despreading the spread-spectrum-time-multiplexed signal as a time-multiplexed signal;
• detecting in time-multiplexed signal the synchronization-code signal and generating a control signal;
• spread-spectrum processing the remote-data signal with a second chip-code signal as a spread-spectrum signal;
• and
• converting the spread-spectrum signal to a form suitable for sending over a communications channel.