Full-duplex activation in a wireless communication system
View Patent ↗At least one condition associated with radio communication of a radio device ( 10 -A, 10 -B-, 10 -C, 100) with a further radio device ( 10 -A, 10 -B-, 10 -C, 100) is monitored. In response to the at least one condition being met, full-duplex operation is activated for the radio communication of the radio device ( 10 -A, 10 -B-, 10 -C, 100) with the further radio device ( 10 -A, 10 -B-, 10 -C, 100). The full-duplex operation comprises transmission of a first signal on a carrier frequency from the radio device ( 10 -A, 10 -B-, 10 -C, 100) to the further radio device ( 10 -A, 10 -B-, 10 -C, 100) and simultaneous transmission of a second signal on the same carrier frequency from the further radio device ( 10 -A, 10 -B-, 10 -C, 100) to the radio device ( 10 -A, 10 -B-, 10 -C, 100).
1. A method of controlling radio communication in a wireless communication system including a base station in communication with first and second mobile radio user equipment (UE) devices, the method comprising:
monitoring by the first UE device at least one condition associated with direct radio communication between the first UE device and the second UE device; and
in response to the at least one condition being met, controlling by the first UE device activation of a full-duplex operation for said direct radio communication between the first UE device and the second UE device,
wherein said full-duplex operation for the direct radio communication between the first UE device and the second UE device comprises transmission of a first signal on a carrier frequency from a transmitter of the first UE device directly to the second UE device and simultaneous receiving of a second signal by a receiver of the first UE device on the same carrier frequency transmitted from the second UE device to the first UE device,
wherein the at least one condition is based on relative signal characteristics between the transmitter and the receiver.
2. The method according to claim 1 ,
wherein the at least one condition is based on at least one of:
a transmit signal strength of the first signal at the first UE device, and/or
a transmit signal strength of the second signal at the second UE device.
3. The method according to claim 2 ,
wherein the at least one condition is based on the transmit signal strength of the first and/or second signals being below a threshold.
4. The method according to claim 1 ,
wherein the at least one condition is based on at least one of:
a received signal strength of the second signal received at the first UE device, and/or
a received signal strength of the first signal received at the second UE device.
5. The method according to claim 4 ,
wherein the at least one condition is based on one or more of:
the received signal strength of the second signal received at the first UE device, and/or
the received signal strength of the first signal received at the second UE device being above a threshold.
6. The method according to claim 1 ,
wherein the at least one condition is based on a distance between the first UE device and the second UE device.
7. The method according to claim 6 ,
wherein the at least one condition is based on the distance being below a threshold.
8. The method according to claim 1 ,
wherein the at least one condition is based on a relative motion between the first UE device relative and the second UE device.
9. The method according to claim 1 ,
wherein the at least one condition is based on a quality of service requirement for said radio communication between the first UE device and the second UE device.
10. The method according to claim 1 ,
wherein the at least one condition is based on a traffic type associated with said radio communication between the first UE device and the second UE device.
11. The method according to claim 1 , wherein the at least one condition is based on a bandwidth requirement associated with said radio communication between the first UE device and the second UE device.
12. The method according to claim 1 , further comprising:
in response to the at least one condition not being met, deactivating said full-duplex operation.
13. The method according to claim 1 ,
wherein at least one of the first UE device or the second UE device comprises a base station of a cellular radio network.
14. The method according to claim 1 ,
wherein said controlling said activation of the full-duplex operation for said communication between the first UE device and the second UE device comprises sending by the first UE device an indication of enablement of said full-duplex operation for said radio communication to the second UE device.
15. The method according to claim 1 ,
wherein said monitoring and said controlling the activation of said full-duplex operation between the first UE device and the second UE device is performed by a radio control node responsible for controlling radio communication of the first UE device.
16. The method according to claim 15 ,
wherein said activating of said full-duplex operation between the first UE device and the second UE device comprises sending by the radio control node an indication of enablement of said full-duplex operation to the first UE device.
17. The method according to claim 15 ,
wherein the radio control node comprises a base station of a cellular radio network.
18. The method according to claim 1 , wherein
the at least one condition is based on a transmit signal strength of the first signal at the first UE being less than a threshold that depends on a received signal strength of the second signal received by the first UE.
19. A mobile radio user equipment (UE) device for use in an associated wireless communication system including a base station and an associated further mobile radio UE device, the mobile radio UE device comprising:
a radio interface for communication with the further UE device; and
one or more processors configured to:
monitor at least one condition associated with direct radio communication between the UE device and the further UE device; and
in response to the at least one condition being met, control activation of a full-duplex operation for said direct radio communication between the UE device and the further UE device,
wherein said full-duplex operation for the direct radio communication between the UE device and the further UE device comprises transmission of a first signal on a carrier frequency from the UE device directly to the further UE device and simultaneous receiving of a second signal by the UE device on the same carrier frequency transmitted from the further UE device to the UE device,
wherein the at least one condition is based on relative signal characteristics between the transmitter and the receiver.
20. The mobile radio UE device according to claim 19 , wherein the monitoring the at least one condition associated with the radio communication of the UE device with the further UE device comprises:
monitoring by the UE device at least one of:
at least one of:
a transmit signal strength of the first signal at the UE device, and/or
a transmit signal strength of the second signal at the further UE device;
at least one of:
a received signal strength of the second signal received at the UE device, and/or
a received signal strength of the first signal received at the further Ue device;
one or more of:
the received signal strength of the second signal received at the UE device, and/or
the received signal strength of the first signal received at the further UE device being above a threshold;
a distance between the UE device and the further UE device;
a relative motion between the UE device relative and the further UE device;
a quality of service requirement for said radio communication between the UE device and the further UE device;
a traffic type associated with said radio communication between the UE device and the further UE device; and/or
a bandwidth requirement associated with said radio communication between the UE device and the further UE device.
21. The mobile radio UE device according to claim 19 , wherein:
the at least one condition is based on a transmit signal strength of the first signal at the first UE being less than a threshold that depends on a received signal strength of the second signal received by the first UE.