OFDM transmission and reception for non-OFDM signals
Methods and apparatuses for Orthogonal Frequency-Division Multiplexing (OFDM) communication of non-OFDM radio signals are disclosed. The non-OFDM radio signals are force-modulated into OFDM signals. In one example, a non-OFDM signal is received and is processed into an OFDM signal to produce a created OFDM signal. An actual OFDM signal is also received and is processed together with the created OFDM signal.
1. A method performed on a computing device that includes radio hardware, the method comprising:
dividing, by the computing device, a channel into a plurality of subchannels;
converting, by the computing device, first data from serial to a first plurality of parallel streams of the first data, where the first data comprises an OFDM (Orthogonal Frequency-Division Multiplexing) signal;
converting, by the computing device, second data from serial to a second plurality of parallel streams of the second data, where the second data comprises a non-OFDM signal;
selecting a first distinct subset of the plurality of subchannels into which the first plurality of parallel streams of the first data is split;
selecting a second distinct subset of the plurality of subchannels into which the second plurality of parallel streams of the second data is split;
modulating, by the computing device, the first plurality of parallel streams of the first data and the second plurality of parallel streams of the second data onto the plurality of subchannels of the channel, where the modulated first plurality of parallel streams of the first data is split into the selected first distinct subset of the plurality of subchannels, and where the modulated second plurality of parallel streams of the second data is split into the selected second distinct subset of the plurality of subchannels; and
transmitting, by the radio hardware over the channel, a radio signal comprising the modulated first plurality of parallel streams of the first data and the modulated second plurality of parallel streams of the second data.
2. The method of claim 1 where the modulated first plurality of parallel streams of the transmitted radio signal comprises a WiFi signal as the OFDM signal and where the modulated second plurality of parallel streams of the transmitted radio signal comprises a Bluetooth signal as the non-OFDM signal.
3. The method of claim 1 where the channel comprises fifty-five subchannels.
4. The method of claim 1 where the first distinct subset of the plurality of subchannels contains fifty-two of the plurality of subchannels.
5. The method of claim 1 where the second distinct subset of the plurality of subchannels contains three of the plurality of subchannels.
6. The method of claim 1 where the modulated first plurality of parallel streams of the transmitted radio signal comprises an Orthogonal Frequency-Division Multiplexing (“OFDM”) signal.
7. The method of claim 1 where the modulated second plurality of parallel streams of the transmitted radio signal comprises a Bluetooth signal.
8. A computing device comprising:
at least one processor;
memory that is couple to the at least one processor and that includes computer-readable instructions that, based on execution by the at least one processor, configure the computing device to perform actions comprising:
dividing, by the computing device, a channel into a plurality of subchannels;
converting, by the computing device, first data from serial to a first plurality of parallel streams of the first data, where the first data comprises an OFDM (Orthogonal Frequency-Division Multiplexing) signal;
converting, by the computing device, second data from serial to a second plurality of parallel streams of the second data, where the second data comprises a non-OFDM signal;
selecting a first distinct subset of the plurality of subchannels into which the first plurality of parallel streams of the first data is split;
selecting a second distinct subset of the plurality of subchannels into which the second plurality of parallel streams of the second data is split;
modulating, by the computing device, the first plurality of parallel streams of the first data and the second plurality of parallel streams of the second data onto the plurality of subchannels of the channel, where the modulated first plurality of parallel streams of the first data is split into the selected first distinct subset of the plurality of subchannels, and where the modulated second plurality of parallel streams of the second data is split into the selected second distinct subset of the plurality of subchannels; and
transmitting, by the radio hardware over the channel, a radio signal comprising the modulated first plurality of parallel streams of the first data and the modulated second plurality of parallel streams of the second data.
9. The computing device of claim 8 where the modulated first plurality of parallel streams of the transmitted radio signal comprises a Wifi signal as the OFDM signal and where the modulated second plurality of parallel streams of the transmitted radio signal comprises a Bluetooth signal as the non-OFDM signal.
10. The computing device of claim 8 where the channel comprises fifty-five subchannels.
11. The computing device of claim 8 where the first distinct subset of the plurality of subchannels contains fifty-two of the plurality of subchannels.
12. The computing device of claim 8 where the second distinct subset of the plurality of subchannels contains three of the plurality of subchannels.
13. The computing device of claim 8 where the modulated first plurality of parallel streams of the transmitted radio signal comprises an Orthogonal Frequency-Division Multiplexing (“OFDM”) signal.
14. The computing device of claim 8 where the modulated second plurality of parallel streams of the transmitted radio signal comprises a Bluetooth signal.
15. At least one memory that comprises computer-readable instructions that, based on execution by a computing device, configure the computing device to perform actions comprising:
converting, by the computing device, first data from serial to a first plurality of parallel streams of the first data, where the first data comprises an OFDM (Orthogonal Frequency-Division Multiplexing) signal;
converting, by the computing device, second data from serial to a second plurality of parallel streams of the second data, where the second data comprises a non-OFDM signal;
selecting a first distinct subset of the plurality of subchannels into which the first plurality of parallel streams of the first data is split;
selecting a second distinct subset of the plurality of subchannels into which the second plurality of parallel streams of the second data is split;
modulating, by the computing device, the first plurality of parallel streams of the first data and the second plurality of parallel streams of the second data onto the plurality of subchannels of the channel, where the modulated first plurality of parallel streams of the first data is split into the selected first distinct subset of the plurality of subchannels, and where the second plurality of parallel streams of the second data is split into the selected second distinct subset of the plurality of subchannels; and
transmitting, by the radio hardware over the channel, a radio signal comprising the modulated first plurality of parallel streams of the first data and the modulated second plurality of parallel streams of the second data.
16. The at least one memory of claim 15 where the channel comprises fifty-five subchannels.
17. The at least one memory of claim 15 where the first distinct subset of the plurality of subchannels contains fifty-two of the plurality of subchannels.
18. The at least one memory of claim 15 where the second distinct subset of the plurality of subchannels contains three of the plurality of subchannels.
19. The at least one memory of claim 15 where the modulated first plurality of parallel streams of the transmitted radio signal comprises a WiFi signal as the OFDM signal.
20. The at least one memory of claim 15 where the modulated second plurality of parallel streams of the transmitted radio signal comprises a Bluetooth signal as the non-OFDM signal.