Dual-radio communication device, and operating method thereof
An operating method executed by a wireless communication device is provided. The method includes selecting a high-performance receiver to receive a wireless signal from a transmitting device in response to the wireless signal being a first type of signal on a high-performance radio layer; and selecting a low-power receiver or the high-performance receiver to receive the wireless signal from the transmitting device in response to the wireless signal being a second type of signal on a low-power radio layer.
1 . An operating method, executed by a wireless communication device, the method comprising:
selecting a high-performance receiver to receive a wireless signal from a transmitting device in response to the wireless signal being a first type of signal on a high-performance radio layer; and
selecting a low-power receiver or the high-performance receiver to receive the wireless signal from the transmitting device in response to the wireless signal being a second type of signal on a low-power radio layer,
wherein when the wireless signal is a wake-up signal transmitted from the transmitting device, the method further comprises:
indicating to wake up the high-performance receiver to monitor Physical Downlink Control Channel (PDCCH) corresponding to the wake-up signal;
wherein the wake-up signal is associated to the PDCCH.
2 . The operating method as claimed in claim 1 , wherein the first type of signal is a broadcast signal, a control channel signal, a data channel signal, a reference signal for fine time and frequency (T/F) synchronization, a reference signal for Channel-state information (CSI) acquisition, or a reference signal for beam management.
3 . The operating method as claimed in claim 1 , wherein the second type of signal is a signal for cell ID acquisition, a signal for cell measurement, a reference signal for coarse timing synchronization, a wake-up signal, or a short control message.
4 . The operating method as claimed in claim 1 , wherein when the low power receiver is selected, the method further comprises:
switching from the low-power receiver to the high performance receiver when one of the following situations occurs:
the wireless communication device receives a wake-up signal from the transmitting device;
the wireless communication device is under low signal-to-noise ratio (SNR) conditions;
the wireless communication device is in cell edge; and
the wireless communication device is in high mobility state.
5 . The operating method as claimed in claim 1 , wherein the wireless communication device is a user equipment (UE).
6 . The operating method as claimed in claim 1 , wherein the transmitting device is a base station.
7 . The operating method as claimed in claim 6 , wherein the wireless signal that is the first type of signal is a big extended synchronization signal block (xSSB) transmitted on the high-performance radio layer; and
the wireless signal that is the second type of signal is a little synchronization signal (SS) transmitted on the low-power radio layer.
8 . The operating method as claimed in claim 7 , wherein the big xSSB is a beamformed signal with a bandwidth greater than 3 MHz and a periodicity greater than 20 milliseconds (ms).
9 . The operating method as claimed in claim 7 , wherein the little SS is an omnidirectional signal with a bandwidth less than or equal to 3 MHz and a periodicity less than or equal to 20 milliseconds (ms).
10 . A wireless communication device, comprising:
a high-performance receiver;
a low-power receiver; and
a controller, coupled to the high-performance receiver and the low-power receiver and operable to: configure the wireless communication device to select the high-performance receiver to receive a wireless signal from a transmitting device in response to the wireless signal being a first type of signal on a high-performance radio layer and select the low-power receiver or the high-performance receiver to receive the wireless signal from the transmitting device in response to the wireless signal being a second type of signal on a low-power radio layer,
wherein when the wireless signal is a wake-up signal transmitted from the transmitting device, the controller further configures the wireless communication device to:
indicate to wake up the high-performance receiver to monitor Physical Downlink Control Channel (PDCCH) corresponding to the wake-up signal;
wherein the wake-up signal is associated to the PDCCH.
11 . The wireless communication device as claimed in claim 10 , wherein the first type of signal is a broadcast signal, a control channel signal, a data channel signal, a reference signal for fine time and frequency (T/F) synchronization, a reference signal for Channel-state information (CSI) acquisition, or a reference signal for beam management.
12 . The wireless communication device as claimed in claim 10 , wherein the second type of signal is a signal for cell ID acquisition, a signal for cell measurement, a reference signal for coarse timing synchronization, a wake-up signal, or a short control message.
13 . The wireless communication device as claimed in claim 10 , wherein when the low power receiver is selected, the controller further configures the wireless communication device to:
switch from the low-power receiver to the high-performance receiver when one of the following situations occurs:
the wireless communication device receives a wake-up signal from the transmitting device;
the wireless communication device is under low signal-to-noise ratio (SNR) conditions;
the wireless communication device is in cell edge; and
the wireless communication device is in high mobility state.
14 . The wireless communication device as claimed in claim 10 , wherein the wireless communication device is a user equipment (UE).
15 . The wireless communication device as claimed in claim 10 , wherein the transmitting device is a base station.
16 . The wireless communication device as claimed in claim 15 , wherein the wireless signal that is the first type of signal is a big extended synchronization signal block (xSSB) transmitted on the high-performance radio layer; and
the wireless signal that is the second type of signal is a little synchronization signal (SS) transmitted on the low-power radio layer.
17 . The wireless communication device as claimed in claim 16 , wherein the big xSSB is a beamformed signal with a bandwidth greater than 3 MHz and a periodicity greater than 20 milliseconds (ms).
18 . The operating method as claimed in claim 16 , wherein the little SS is an omnidirectional signal with a bandwidth less than or equal to 3 MHz and a periodicity less than or equal to 20 milliseconds (ms).