RF transmit architecture methods
A transmitter device is switchably operable in a digital IQ mode (DIQM) of operation and a polar mode (PM) of operation. The device has a switch that determines an attribute of operation of the transmitter device. When a first condition of the attribute is met, the switch is to switch to or remain in the PM, and when a second condition of the attribute is met, the switch is to switch to or remain in the DIQM. The attribute may be: a modulation bandwidth to be used during a transmission time slot, whether a transmission is to be a non-contiguous single-carrier transmission or a non-contiguous multiple-carrier transmission, a contiguous single-carrier transmission or a contiguous multiple-carrier transmission, whether a low or high EVM mode transmission is to be used during a transmission time period, whether an LTE, a 5G, or a Wi-Fi mode transmission is to be used, among others.
1. A transmitter device switchably operable in a digital IQ mode (DIQM) of operation and a polar mode (PM) of operation, comprising:
a switch logic processor to determine whether a transmission carrier type to be used during a transmission time period is to be a non-contiguous single-carrier transmission or a non-contiguous multiple-carrier transmission; and
a switch connected to the switch logic processor and that is to switch operation of the transmitter device between the DIQM of operation and the PM of operation, wherein
when the transmission is to be a non-contiguous single-carrier transmission, then the switch is to switch to or remain in the PM, and
when the transmission is to be a non-contiguous multiple-carrier ransmission, then the switch is to switch to or remain in the DIQM.
2. The transmitter device of claim 1 , wherein the time period is a time slot.
3. The transmitter device of claim 1 , wherein, in a dual band mode of operation, a first band uses PM and a second band uses DIQM.
4. The transmitter device of claim 1 , further comprising a control input coupled to the switch logic processor.
5. The transmitter device of claim 4 , wherein the switch logic processor determines whether a transmission carrier type to be used during a transmission time period is to be a non-contiguous single-carrier transmission or a non-contiguous multiple-carrier transmission based on a base station signal received at the control input.
6. The transmitter device of claim 5 , wherein the switch logic processor performs the determining independent of bandwidth of expected transmissions during the transmission time period.
7. The transmitter device of claim 5 , wherein the switch logic processor further performs the determining based on an expected harmonic crosstalk.
8. A transmitter device switchably operable in a digital IQ mode (DIQM) of operation and a polar mode (PM) of operation, comprising:
a switch logic processor to determine whether a transmission carrier type to be used during a transmission time period is to be a contiguous single-carrier transmission or a contiguous multiple-carrier transmission; and
a switch connected to the switch logic processor and that is to switch operation of the transmitter device between the DIQM of operation and the PM of operation, wherein
when the transmission is to be a contiguous single-carrier transmission, then the switch is to switch to or remain in the PM, and
when the transmission is to be a contiguous multiple-carrier transmission, then the switch is to switch to or remain in the DIQM.
9. The transmitter device of claim 8 , wherein the time period is a time slot.
10. The transmitter device of claim 8 , wherein, in a dual band mode of operation, a first band uses PM and a second band uses DIQM.
11. The transmitter device of claim 10 , further comprising a control input coupled to the switch logic processor.
12. The transmitter device of claim 11 , wherein the switch logic processor determines whether a transmission carrier type to be used during a transmission time period is to be a contiguous single-carrier transmission or a contiguous multiple-carrier transmission based on a base station signal received at the control input.
13. The transmitter device of claim 12 , wherein the switch logic processor performs the determining based on identifiers of resource blocks to be used for the selected one of contiguous single-carrier transmission or contiguous multiple-carrier transmission.
14. The transmitter device of claim 13 , wherein the switch selects PM when the identifiers of the resource blocks indicate that the resource blocks are within a central portion of available blocks.
15. The transmitter device of claim 13 , wherein the switch selects DIQM when the identifiers of the resource blocks indicate that the resource blocks are not within a central portion of available blocks.
16. A method for operating a transmitter device that is switchably operable between a digital IQ mode (DIQM) of operation and a polar mode (PM) of operation, the method comprising:
determining, with a switch logic processor, whether a transmission carrier type to be used during a transmission time period is to be a non-contiguous single-carrier transmission or a non-contiguous multiple-carrier transmission; and
when the transmission is to be a non-contiguous single-carrier transmission, switching to the PM of operation, and
when the transmission is to be a non-contiguous multiple-carrier transmission, switching to the DIQM mode of operation.
17. The method of claim 16 , further comprising receiving a control input and wherein the switch logic processor determines whether a transmission carrier type to be used during a transmission time period is to be a non-contiguous single-carrier transmission or a non-contiguous multiple-carrier transmission based on the control input.
18. The method of claim 17 , wherein the switch logic processor performs the determining independent of bandwidth of expected transmissions during the transmission time period.
19. The method of claim 18 , wherein the switch logic processor further performs the determining based on an expected harmonic crosstalk.