Digital baseband transmitter with digital RF/IF support in GSM/GPRS/EDGE compliant handsets
View Patent ↗Certain aspects of a digital baseband transmitter with digital RF/IF support in GSM/GPRS/EDGE compliant devices may comprise receiving digitized data within a chip. A control signal may be generated within the chip indicating whether the received digitized data is to be processed by an IF processing interface or a digital RF processing interface. The baseband processor has the capability to work together with different kinds of RF chips on the market and since this design is implemented on a single module, most of the circuits are shared which reduces the die size significantly. This design also provides a customer more flexibility to choose among different RF vendors.
1. A method for supporting GSM, GPRS and EDGE utilizing a baseband transmitter, the method comprising:
Performing by one or more circuits integrated within a chip:
Receiving digitized data within said chip; wherein said digitized data is one or more of GSM, GPRS and EDGE data; and generating at least one control signal from within said chip, which indicates whether said received digitized data, is to be processed by an analog IF processing interface or a digital baseband RF processing interface.
2. The method according to claim 1 , comprising receiving said digitized data from a DSP.
3. The method according to claim 1 , comprising modulating said received digitized data using GMSK modulation, if said received digitized data is a GSM or GPRS signal.
4. The method according to claim 1 , comprising modulating said received digitized data using 8PSK modulation, if said received digitized data is an EDGE signal.
5. The method according to claim 1 , comprising offsetting at least one frequency component of said received digitized data.
6. The method according to claim 1 , comprising converting said digitized data to analog data.
7. The method according to claim 6 , comprising filtering said analog data.
8. The method according to claim 1 , comprising generating at least a first signal that controls start of transmission of said digitized data to said digital RF processing interface.
9. The method according to claim 1 , comprising:
modulating said received digitized data; and
generating at least a second signal that starts serial transfer of said modulated received digitized data.
10. The method according to claim 9 , comprising generating at least a third signal that synchronizes said serial transfer of said modulated received digitized data.
11. The method according to claim 9 , comprising generating at least a fourth signal that transfers output serial modulated received digitized data.
12. The method according to claim 1 , comprising buffering said received digitized data.
13. A non-transitory computer-readable medium having stored thereon, a computer program having at least one code section for supporting GSM, GPRS and EDGE utilizing a baseband transmitter, the at least one code section being executable by a computer for causing the computer to perform steps comprising:
receiving digitized data within a chip; wherein said digitized data is one or more of GSM, GPRS and EDGE data; and generating at least one control signal from within said chip, which indicates whether said received digitized data is to be processed by an analog IF processing interface or a digital baseband RF processing interface.
14. The non-transitory computer-readable medium according to claim 13 , wherein said at least one code section comprises code for receiving said digitized data from a DSP.
15. The non-transitory computer-readable medium according to claim 13 , wherein said at least one code section comprises code for modulating said received digitized data using GMSK modulation, if said received digitized data is a GSM or GPRS signal.
16. The non-transitory computer-readable medium according to claim 13 , wherein said at least one code section comprises code for modulating said received digitized data using 8PSK modulation, if said received digitized data is an EDGE signal.
17. The non-transitory computer-readable medium according to claim 13 , wherein said at least one code section comprises code for offsetting at least one frequency component of said received digitized data.
18. The non-transitory computer-readable medium according to claim 13 , wherein said at least one code section comprises code for converting said digitized data to analog data.
19. The non-transitory computer-readable medium according to claim 18 , wherein said at least one code section comprises code for filtering said analog data.
20. The non-transitory computer-readable medium according to claim 13 , wherein said at least one code section comprises code for generating at least a first signal that controls start of transmission of said digitized data to said digital RF processing interface.
21. The non-transitory computer-readable medium according to claim 13 , wherein said at least one code section comprises code for:
modulating said received digitized data; and
generating at least a second signal that starts serial transfer of said modulated received digitized data.
22. The non-transitory computer-readable medium according to claim 21 , wherein said at least one code section comprises code for generating at least a third signal that synchronizes said serial transfer of said modulated received digitized data.
23. The non-transitory computer-readable medium according to claim 21 , wherein said at least one code section comprises code for generating at least a fourth signal that transfers output serial modulated received digitized data.
24. The non-transitory computer-readable medium according to claim 13 , wherein said at least one code section comprises code for buffering said received digitized data.
25. A system for supporting GSM, GPRS and EDGE utilizing a baseband transmitter, the system comprising:
circuitry for receiving digitized data within a chip; wherein said digitized data is one or more of GSM, GPRS and EDGE data; and circuitry for generating at least one control signal from within said chip, which indicates whether said received digitized data is to be processed by an analog IF processing interface or a digital baseband RF processing interface.
26. The system according to claim 25 , comprising a transmit burst buffer that receives said digitized data from a DSP.
27. The system according to claim 25 , comprising a modulator that modulates said received digitized data using GMSK modulation, if said received digitized data is a GSM or GPRS signal.
28. The system according to claim 25 , comprising a modulator that modulates said received digitized data using 8PSK modulation, if said received digitized data is an EDGE signal.
29. The system according to claim 25 , comprising an offset register that controls offset of at least one frequency component of said received digitized data.
30. The system according to claim 25 , comprising a digital to analog converter that converts said digitized data to analog data.
31. The system according to claim 30 , comprising a filter that filters said analog data.
32. The system according to claim 25 , comprising a state machine that generates at least a first signal that controls start of transmission of said digitized data to said digital RF processing interface.
33. The system according to claim 25 , comprising:
a modulator that modulates said received digitized data; and
a state machine that generates at least a second signal that starts serial transfer of said modulated received digitized data.
34. The system according to claim 33 , comprising a counter that generates at least a third signal that synchronizes said serial transfer of said modulated received digitized data.
35. The system according to claim 33 , comprising a shift register that generates at least a fourth signal that transfers output serial modulated received digitized data.
36. The system according to claim 25 , comprising a transmit burst buffer that buffers said received digitized data.