Multiple frequency band information signal frequency band conversion
View Patent ↗A wireless device includes processing circuitry and a Radio Frequency (RF) receiver section. The processing circuitry determines a set of information signals for receipt, the set of information signals carried by a RF Multiple Frequency Bands Multiple Standards (MFBMS) signal having a plurality of information signal frequency bands. The processing circuitry determines a shift frequency based upon the determination. the RF receiver section receives the RF MFBMS signal and down-converts the RF MFBMS signal by the shift frequency to produce a baseband/low Intermediate Frequency (BB/IF) MFBMS signal. The processing circuitry then extracts data from the set of information signals of the BB/IF MFBMS signal.
1. A method for operating a wireless device comprising:
the wireless device determining a set of information signals for receipt, the set of information signals carried by a Radio Frequency (RF) Multiple Frequency Bands Multiple Standards (MFBMS) signal having a plurality of information signal frequency bands;
a RF receiver section of the wireless device receiving the RF MFBMS signal;
the RF receiver section of the wireless device:
for a first set of information signals of the RF MFBMS signal, down-converting the RF MFBMS signal by a first shift frequency to produce a baseband/low Intermediate Frequency (BB/IF) MFBMS signal; and
for a second set of information signals of the RF MFBMS signal, down-converting the RF MFBMS signal by a second shift frequency to produce the BB/IF MFBMS signal, wherein the second shift frequency differs from the first shift frequency;
wherein down converting the RF MFBMS signal by the second shift frequency causes at least one information signal frequency band of the BB/IF MFBMS signal to be shifted below zero frequency;
further comprising high pass filtering the down converted BB/IF MFBMS signal to remove the at least one information signal frequency band that is shifted below zero frequency; and
a baseband processor of the wireless device extracting data from the set of information signals of the BB/IF MFBMS signal.
2. The method of claim 1 , further comprising, for a third set of information signals of the RF MFBMS signal, down-converting the RF MFBMS signal by a third shift frequency to produce the BB/IF MFBMS signal.
3. 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.
4. 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.
5. 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.
6. 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.
7. A method for operating a wireless device comprising:
the wireless device determining a set of information signals for receipt, the set of information signals carried by a Radio Frequency (RF) Multiple Frequency Bands Multiple Standards (MFBMS) signal having a plurality of information signal frequency bands;
the wireless device determining a shift frequency based upon the determination;
a RF receiver section of the wireless device receiving the RF MFBMS signal;
the RF receiver section of the wireless device down-converting the RF MFBMS signal by the shift frequency to produce a baseband/low Intermediate Frequency (BB/IF) MFBMS signal;
wherein down converting the RF MFBMS signal by the shift frequency to produce a baseband/low Intermediate Frequency (BB/IF) MFBMS signal causes at least one information signal frequency band to be shifted below zero frequency;
further comprising high pass filtering the BB/IF MFBMS signal to remove the at least one information signal frequency band that is shifted below zero frequency; and
a baseband processor of the wireless device extracting data from the set of information signals of the BB/IF MFBMS signal.
8. The method of claim 7 , wherein the RF receiver section of the wireless device down-converting the RF MFBMS signal by the shift frequency to produce a baseband/low Intermediate Frequency (BB/IF) MFBMS signal comprises:
the RF receiver section down-converting the RF MFBMS signal by a first shift frequency when the RF MFBMS signal carries a first set of information signals; and
the RF receiver section down-converting the RF MFBMS signal by a second shift frequency when the RF MFBMS signal carries a second set of information signals.
9. The method of claim 7 , wherein the RF receiver section of the wireless device down-converting the RF MFBMS signal by the shift frequency to produce a baseband/low Intermediate Frequency (BB/IF) MFBMS signal comprises:
the RF receiver section down-converting the RF MFBMS signal by a first shift frequency when the RF MFBMS signal carries a first set of information signals;
the RF receiver section down-converting the RF MFBMS signal by a second shift frequency when the RF MFBMS signal carries a second set of information signals; and
the RF receiver section down-converting the RF MFBMS signal by a third shift frequency when the RF MFBMS signal carries a third set of information signals.
10. The method of claim 7 , 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.
11. The method of claim 7 , 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.
12. The method of claim 7 , 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.
13. The method of claim 7 , 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.
14. A wireless device comprising:
processing circuitry operable to:
determine a set of information signals for receipt, the set of information signals carried by a Radio Frequency (RF) Multiple Frequency Bands Multiple Standards (MFBMS) signal having a plurality of information signal frequency bands;
determine a shift frequency based upon the determination; a RF receiver section coupled to the baseband processing circuitry operable to:
receive the RF MFBMS signal;
down-convert the RF MFBMS signal by the shift frequency to produce a baseband/low Intermediate Frequency (BB/IF) MFBMS signal;
wherein in down converting the RF MFBMS signal by the shift frequency to produce a baseband/low Intermediate Frequency (BB/IF) MFBMS signal, at least one information signal frequency band is shifted below zero frequency;
at least one of the RF receiver section and the baseband processor are further operable to high pass filter the BB/IF MFBMS signal to remove the at least one information signal frequency band that is shifted below zero frequency; and
the processing circuitry further operable to extract data from the set of information signals of the BB/IF MFBMS signal.
15. The wireless device of claim 14 , wherein in down-converting the RF MFBMS signal by the shift frequency to produce a baseband/low Intermediate Frequency (BB/IF) MFBMS signal, the RF receiver section is operable to:
down-convert the RF MFBMS signal by a first shift frequency when the RF MFBMS signal carries a first set of information signals; and
down-converting the RF MFBMS signal by a second shift frequency when the RF MFBMS signal carries a second set of information signals.
16. The wireless device of claim 14 , wherein in down-converting the RF MFBMS signal by the shift frequency to produce a baseband/low Intermediate Frequency (BB/IF) MFBMS signal, the RF receiver section is operable to:
down-convert the RF MFBMS signal by a first shift frequency when the RF MFBMS signal carries a first set of information signals;
down-convert the RF MFBMS signal by a second shift frequency when the RF MFBMS signal carries a second set of information signals; and
down-convert the RF MFBMS signal by a third shift frequency when the RF MFBMS signal carries a third set of information signals.
17. The wireless device of claim 14 , 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 14 , 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 14 , 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 14 , 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.