Radio frequency integrated circuit and communication device including the integrated circuit
Provided is radio frequency integrated circuit (RFIC). The radio frequency integrated circuit (RFIC) comprises a plurality of transceiver IPs (intellectual property), wherein each transceiver IP includes an analog mixer configured to perform frequency adjustment on a signal input thereto, and a filter configured to perform filtering on the signal having the adjusted frequency based on a predetermined (or alternatively desired) band, a plurality of registers corresponding to the plurality of transceiver IPs, respectively; wherein the plurality of registers are configured to generate a plurality of control signals for controlling the plurality of transceiver IPs, respectively, a memory configured to store therein a plurality of register addresses and a plurality of register data on the plurality of registers, respectively in a form of a lookup table and a processor configured to receive a command related to the lookup table from an external component, and to control the plurality of registers based on the lookup table.
1. A radio frequency integrated circuit (RFIC) comprising:
a plurality of transceiver IPs (intellectual property), each transceiver IP among the plurality of transceiver IPs including an analog mixer and a filter, the analog mixer being configured to perform frequency adjustment on a signal input thereto to obtain a frequency adjusted signal, and the filter being configured to perform filtering on the frequency adjusted signal;
a plurality of registers respectively corresponding to the plurality of transceiver IPs, the plurality of registers being configured to generate a plurality of control signals, each respective control signal among the plurality of control signals being for controlling a corresponding transceiver IP among the plurality of transceiver IPs;
a memory configured to store therein a plurality of lookup tables, each lookup table including
a plurality of register addresses respectively corresponding to the plurality of registers, and
a plurality of register data, respectively corresponding to the plurality of registers; and
a processor configured to
receive a command related to a first lookup table from an external component, the first lookup table being among the plurality of lookup tables,
load the first lookup table corresponding to the command from the memory to the plurality of registers, and perform setting operations on the plurality of registers to generate the plurality of control signals based on the first lookup table.
2. The radio frequency integrated circuit of claim 1 , further comprising:
a latch configured to provide each respective control signal among the plurality of control signals to a corresponding transceiver IP among the plurality of transceiver IPs,
wherein the processor is configured to provide a timing signal to the latch to control the latch.
3. The radio frequency integrated circuit of claim 2 , wherein
the plurality of registers includes a first register and a second register, the first register corresponding to the analog mixer, and the second register corresponding to the filter;
the processor is configured to:
provide first register data contained in the first lookup table to the first register at a first time point, and
provide second register data contained in the first lookup table to the second register at a second time point;
the first register is configured to generate a first control signal based on the first register data;
the second register is configured to generate a second control signal based on the second register data;
the processor is configured to provide the timing signal at a third time point subsequent to the first time point and the second time point; and
each of the plurality of transceiver IPs is configured to perform the frequency adjustment and the filtering, based on the first control signal, the second control signals and the timing signal.
4. The radio frequency integrated circuit of claim 2 , further comprising:
a signal generator configured to
receive a sync adjustment signal from the external component, and
adjust a timing at which the timing signal is input to the latch, based on the sync adjustment signal.
5. The radio frequency integrated circuit of claim 2 , wherein
the plurality of lookup tables include the first lookup table and a second lookup table, the second lookup table being different from the first lookup table.
6. The radio frequency integrated circuit of claim 5 , wherein the processor is configured to control the plurality of registers, based on the plurality of register addresses and the plurality of register data.
7. The radio frequency integrated circuit of claim 1 , wherein
the plurality of register addresses includes at least three register addresses; and
the plurality of register data includes at least three register data.
8. The radio frequency integrated circuit of claim 7 , wherein
the plurality of register addresses respectively correspond to the plurality of registers; and
the plurality of control signals respectively correspond to the plurality of register data.
9. A communication device comprising:
a radio frequency integrated circuit (RFIC) including:
a plurality of transceiver IPs, each transceiver IP among the plurality of transceiver IPs including a filter and an analog mixer, the filter being configured to perform filtering on a signal input thereto, and the analog mixer being configured to perform frequency adjustment on the input signal,
a plurality of registers configured to generate a plurality of control signals, each respective control signal among the plurality of control signals being for controlling a corresponding transceiver IP among the plurality of transceiver IPs;
a latch configured to provide each respective control signal among the plurality of control signals to a corresponding transceiver IP among the plurality of transceiver IPs, and
a first processor configured to provide a timing signal to the latch to control the latch; and
a modem including:
a second processor configured to provide the input signal and a command to the radio frequency integrated circuit, the command corresponding to the plurality of control signals, and
a global timer configured to provide a sync adjustment signal to the radio frequency integrated circuit, the sync adjustment signal being configured to adjust a timing at which the timing signal is input to the latch,
wherein the first processor receives the command, provides data to the plurality of registers corresponding to the command and performs setting operation on the plurality of registers to generate the plurality of control signals based on the data.
10. The communication device of claim 9 , wherein
the radio frequency integrated circuit further includes a memory configured to store the data in a form of a lookup table, the lookup table including
a plurality of register addresses respectively corresponding to the plurality of registers, and
a plurality of register data respectively corresponding to the plurality of registers; and
the first processor is configured to control the plurality of registers based on the lookup table.
11. The communication device of claim 10 , wherein
the plurality of register addresses includes at least three register addresses; and
the plurality of register data includes at least three register data.
12. The communication device of claim 10 , wherein
the lookup table includes a first lookup table and a second lookup table, the second lookup table being different from the first lookup table;
the command corresponds to the first lookup table; and
the first processor is configured to control the plurality of registers based on the plurality of register addresses and the plurality of register data.
13. The communication device of claim 10 , wherein
the global timer includes a sync register configured to generate an event value based on at least one of an operating voltage or an operation temperature of the communication device; and
the global timer is configured to provide the sync adjustment signal to the radio frequency integrated circuit, based on the event value.
14. The communication device of claim 13 , wherein
the sync register is configured to output the event value; and
the global timer is configured to generate the sync adjustment signal based on the event value.
15. The communication device of claim 9 , wherein the second processor is configured to:
provide the command to the radio frequency integrated circuit at a first time point; and
receive a return signal corresponding to the command from the radio frequency integrated circuit at a second time point subsequent to the first time point; and
perform a control operation of the modem at a time point between the first time point and the second time point.
16. A communication device comprising:
an antenna module including a plurality of antennas and a beamformer, the plurality of antennas being configured to receive a plurality of radio signals, and the beamformer being configured to perform beamforming on the plurality of radio signals to generate an input signal;
a radio frequency integrated circuit (RFIC) configured to
perform frequency adjustment on the input signal to obtain a frequency adjusted signal, and
perform filtering on the input signal having the adjusted-frequency adjusted signal, thereby providing a baseband signal; and
a modem configured to
receive the baseband signal from the radio frequency integrated circuit, and
provide a command for controlling the frequency adjustment and the filtering to the radio frequency integrated circuit,
wherein the radio frequency integrated circuit (RFIC) includes:
a plurality of transceiver IPs, each transceiver IP among the plurality of transceiver IPs including an analog mixer and a filter, the analog mixer being configured to perform the frequency adjustment on the input signal, and the filter being configured to perform the filtering on the input signal having the adjusted frequency adjusted signal,
a plurality of registers respectively corresponding to the plurality of transceiver IPs, the plurality of registers being configured to generate a plurality of control signals, each respective control signal among the plurality of control signals being for controlling a corresponding transceiver IP among the plurality of transceiver IPs,
a memory configured to store therein a lookup table, the lookup table including
a plurality of register addresses respectively corresponding to the plurality of registers, and
a plurality of register data respectively corresponding to the plurality of registers, and
a processor configured to
receive the command the modem,
load the lookup table corresponding to the command from the memory to the plurality of registers, and
perform setting operations on the plurality of registers to generate the plurality of control signals based on the lookup table.
17. The communication device of claim 16 , wherein
the radio frequency integrated circuit further includes a latch configured to provide each respective control signal among the plurality of control signals to a corresponding transceiver IP among the plurality of transceiver IPs; and
the processor is configured to provide a timing signal to the latch to control the latch.
18. The communication device of claim 17 , wherein
the plurality of registers includes a first register and a second register, the first register corresponding to the analog mixer, and the second register corresponding to the filter;
the processor is configured to:
provide first register data contained in the lookup table to the first register at a first time point, and
provide second register data contained in the lookup table to the second register at a second time point;
the first register is configured to generate a first control signal based on the first register data;
the second register is configured to generate a second control signal based on the second register data;
the processor is configured to provide the timing signal at a third time point subsequent to the first time point and the second time points; and
each of the plurality of transceiver IPs is configured to perform the frequency adjustment and the filtering, based on the first control signal, the second control signals and the timing signal.
19. The communication device of claim 16 , wherein
the lookup table includes a first lookup table and a second lookup table, the second lookup table being different from the first lookup table;
the command corresponds to the first lookup table; and
the processor is configured to control the plurality of registers, based on the plurality of register addresses and the plurality of register data.
20. The communication device of claim 16 , wherein
the modem is configured to
provide the command to the radio frequency integrated circuit at a first time point, and
receive a return signal corresponding to the command from the radio frequency integrated circuit at a second time point subsequent to the first time point; and
the modem is configured to perform an internal operation of the modem at a time point between the first time point and the second time point.