Multiple frequency band information signal frequency band compression
View Patent ↗A wireless device includes processing circuitry and a Radio Frequency (RF) receiver section. The processing circuitry determines a set of a plurality of information signals of interest within a RF Multiple Frequency Bands Multiple Standards (MFBMS) signal. The RF receiver section down-converts the plurality of information signals by a shift frequency to produce a plurality of down-converted signals and filters the plurality of down-converted signals to produce a plurality of filtered signals corresponding to the set of the information signals of interest. The processing circuitry further extracts data corresponding to the set of the information signals from the plurality of filtered signals.
1. A method for operating a wireless device comprising:
receiving a Radio Frequency (RF) Multiple Frequency Band Multiple Standards (MFBMS) signal, the RF MFBMS signal including a plurality of information signals, each residing within a respective information signal frequency band;
in a first operation at a first time:
determining a first set of information signals of interest of the plurality of information signals;
determining a first shift frequency for the first set of the plurality of information signals to extract data corresponding to the first set of the plurality of information signals;
passing the plurality of information signals within the RF MFBMS signal through a single receive path of the wireless device, including down-converting the plurality of information signals by the first shift frequency to produce a first plurality of down-converted signals, and filtering the first plurality of down-converted signals to produce a first plurality of filtered signals corresponding to the first set of the plurality of information signals; and
extracting data corresponding to the first set of the plurality of information signals from the first plurality of filtered signals; and
in a second operation at a differing second time:
determining a second set of the plurality of information signals of interest of the plurality of information signals;
determining a second shift frequency for the first set of the plurality of information signals to extract data corresponding to the first set of the plurality of information signals;
passing the plurality of information signals within the RF MFBMS signal through the single receive path of the wireless device, including down-converting the plurality of information signals by the second shift frequency to produce a second plurality of down-converted signals, and filtering the second plurality of down-converted signals to produce a second plurality of filtered signals corresponding to the first set of the plurality of information signals; and
extracting data corresponding to the second set of the plurality of information signals from the second plurality of filtered signals.
2. The method of claim 1 , wherein:
a first information signal frequency band of the RF MFBMS signal comprises a Wireless Local Area Network (WLAN) frequency band; and
a second information signal frequency band of the RF MFBMS signal comprises a cellular telephony frequency band.
3. The method of claim 1 , wherein:
a first information signal frequency band of the RF MFBMS signal comprises a Wireless Personal Area Network (WPAN) frequency band; and
a second information signal frequency band of the RF MFBMS signal comprises a cellular telephony frequency band.
4. The method of claim 1 , wherein:
a first information signal frequency band of the RF MFBMS signal comprises a bidirectional communication frequency band; and
a second information signal frequency band of the RF MFBMS signal comprises a Global Positioning System (GPS) frequency band.
5. The method of claim 1 , wherein:
a first information signal frequency band of the RF MFBMS signal comprises a first bi-directional communication frequency band;
a second information signal frequency band of the RF MFBMS signal comprises a second bi-directional communication frequency band; and
a third information signal frequency band of the RF MFBMS signal comprises a Global Positioning System (GPS) frequency band.
6. The method of claim 1 , wherein the determining the first shift frequency further comprises:
determining respective desired positions of the set of the plurality of information signals within a baseband/intermediate frequency (BB/IF) spectrum; and
selecting the first shift frequency that produces the desired positions of the set of the plurality of information signals.
7. The method of claim 1 , wherein the determining the first shift frequency further comprises:
determining the first shift frequency that causes at least one of the plurality of information signals outside of the set of the plurality of information signals to reside below 0 Hz.
8. The method of claim 7 , wherein the filtering the plurality of down-converted signals further comprises:
removing the at least one of the plurality of information signals outside of the set of the plurality of information signals from the plurality of down-converted signals to produce the plurality of filtered signals.
9. A method for operating a wireless device comprising:
receiving a Radio Frequency (RF) Multiple Frequency Band Multiple Standards (MFBMS) signal, the RF MFBMS signal including a plurality of information signals, each residing within a respective information signal frequency band;
in a first operation at a first time:
determining a first set of information signals of interest;
determining a first shift frequency for the set of the plurality of information signals;
passing the plurality of information signals within the RF MFBMS signal through the single receive path of the wireless device with first gain settings, including down-converting the plurality of information signals by the first shift frequency to produce a first plurality of down-converted signals and filtering the first plurality of down-converted signals to produce a first plurality of filtered signals corresponding to the first set of the plurality of information signals; and
extracting data corresponding to the first set of the plurality of information signals from the respective plurality of filtered signals; and
in a second operation at a differing second time:
determining a second set of the plurality of information signals of interest;
determining a second shift frequency for the set of the plurality of information signals;
passing the plurality of information signals within the RF MFBMS signal through the single receive path of the wireless device with second gain settings that differ from the first gain settings, including down-converting the plurality of information signals by the second shift frequency to produce a second plurality of down-converted signals, and filtering the second plurality of down-converted signals to produce a second plurality of filtered signals corresponding to the second set of the plurality of information signals; and
extracting data corresponding to the second set of the plurality of information signals from the second plurality of filtered signals.
10. The method of claim 9 , wherein the RF MFBMS signal comprises at least two cellular telephony signals.
11. The method of claim 9 , wherein:
a first information signal frequency band of the RF MFBMS signal comprises a Wireless Local Area Network (WLAN) frequency band; and
a second information signal frequency band of the RF MFBMS signal comprises a cellular telephony frequency band.
12. The method of claim 9 , wherein:
a first information signal frequency band of the RF MFBMS signal comprises a Wireless Personal Area Network (WPAN) frequency band; and
a second information signal frequency band of the RF MFBMS signal comprises a cellular telephony frequency band.
13. The method of claim 9 , wherein:
a first information signal frequency band of the RF MFBMS signal comprises a bidirectional communication frequency band; and
a second information signal frequency band of the RF MFBMS signal comprises a Global Positioning System (GPS) frequency band.
14. The method of claim 9 , wherein:
a first information signal frequency band of the RF MFBMS signal comprises a first bi-directional communication frequency band;
a second information signal frequency band of the RF MFBMS signal comprises a second bi-directional communication frequency band; and
a third information signal frequency band of the RF MFBMS signal comprises a Global Positioning System (GPS) frequency band.
15. A wireless device comprising:
a Radio Frequency (RF) receiver section for receiving a Radio Frequency (RF) Multiple Frequency Band Multiple Standards (MFBMS) signal, the RF MFBMS signal including a plurality of information signals, each residing within a respective information signal frequency band, the RF receiver section having a single receive path, the RF receiver section configured to:
pass the plurality of information signals within the RF MFBMS signal through the single receive path;
down-convert the plurality of information signals by a first or a second shift frequency to produce a plurality of down-converted signals; and
filter the plurality of down-converted signals to produce a plurality of filtered signals, the plurality of filtered signals corresponding to a set of the plurality of information signals of interest; and
processing circuitry configured to:
in a first operation at a first time, determine a first set of the plurality of information signals, determine the first shift frequency for the first set of the plurality of information signals, and extract data corresponding to the first set of the plurality of information signals; and
in a second operation at a differing second time, determine a second set of the plurality of information signals, determine the second shift frequency for the second set of the plurality of information signals, and extract data corresponding to the second set of the plurality of information signals.
16. The wireless device of claim 15 , wherein the RF MFBMS signal comprises at least two cellular telephony signals.
17. The wireless device of claim 15 , wherein:
a first information signal frequency band of the RF MFBMS signal comprises a Wireless Local Area Network (WLAN) frequency band; and
a second information signal frequency band of the RF MFBMS signal comprises a cellular telephony frequency band.
18. The wireless device of claim 15 , wherein:
a first information signal frequency band of the RF MFBMS signal comprises a Wireless Personal Area Network (WPAN) frequency band; and
a second information signal frequency band of the RF MFBMS signal comprises a cellular telephony frequency band.
19. The wireless device of claim 15 , wherein:
a first information signal frequency band of the RF MFBMS signal comprises a bidirectional communication frequency band; and
a second information signal frequency band of the RF MFBMS signal comprises a Global Positioning System (GPS) frequency band.
20. The wireless device of claim 15 , wherein:
a first information signal frequency band of the RF MFBMS signal comprises a first bi-directional communication frequency band;
a second information signal frequency band of the RF MFBMS signal comprises a second bi-directional communication frequency band; and
a third information signal frequency band of the RF MFBMS signal comprises a Global Positioning System (GPS) frequency band.