Methods and apparatus relating to full duplex communications

A method in a first wireless device, the method comprising:

• sending an indication to a base station that the first wireless device has data to transmit to the base station;
• receiving a device-to-device (D2D) announcement configuration from the base station, the D2D announcement configuration requesting the first wireless device to announce to other nearby wireless devices that the first wireless device is available for D2D communication;
• and
• transmitting, without interference at a same time, one or more D2D announcements according to the received D2D announcement configuration.

A method in a second wireless device, the method comprising:

• receiving a device-to-device (D2D) announcement monitoring configuration from a base station, the D2D announcement monitoring configuration requesting the second wireless device to monitor for a D2D announcement by one or more first wireless devices;
• monitoring for a D2D announcement by the one or more first wireless devices according to the received D2D announcement monitoring configuration;
• and
• providing information to the base station, wherein the information relates to receipt of D2D announcements by the second wireless device according to detection of the received D2D announcement monitoring configuration by the one or more wireless devices.

A method in a base station to operate in a full duplex communication mode, the method comprising:

• scheduling resources for a full duplex communication in which an uplink (UL) wireless device is to transmit data to the base station and the base station is to transmit data to a downlink (DL) wireless device without interference at a same time;
• determining one or both of:
• (i) respective channel quality indicator (CQI) for communications from the UL wireless device to the base station for a plurality of available resources;
• and
• (ii) CQI for communications from the base station to the DL wireless device for the plurality of available resources;
• and
• scheduling the N resources with the highest channel quality for the full duplex communication according to the determined CQIs, wherein N is the number of resources required for the full duplex communication.

A base station that is to operate in a full duplex communication mode, the base station comprising a processor and a memory, said memory containing instructions executable by said processor whereby said base station is operative to:

• send respective device-to-device (D2D) announcement configurations to one or more first wireless devices that have data to transmit to the base station, a D2D announcement configuration requesting a first wireless device to announce to other nearby wireless devices that the first wireless device is available for D2D communication;
• send a D2D announcement monitoring configuration to one or more second wireless devices that are to receive data from the base station, the D2D announcement monitoring configuration to cause a second wireless device to monitor for a D2D announcement transmitted by the one or more first wireless devices;
• receive information relating to receipt of D2D announcements by the one or more second wireless devices according to detection of the D2D announcement monitoring configuration by the one or more first wireless devices;
• and
• identify, based on the detection information, an uplink (UL) wireless device from the one or more first wireless devices and a downlink (DL) wireless device from the one or more second wireless devices for a full duplex communication in which the UL wireless device is to transmit data to the base station and the base station is to transmit data to the DL wireless device without interference at a same time.

A first wireless device, wherein the first wireless device comprises a processor and a memory, said memory containing instructions executable by said processor whereby said first wireless device is operative to:

• send an indication to a base station that the first wireless device has data to transmit to the base station;
• receive a device-to-device (D2D) announcement configuration from the base station, wherein the D2D announcement configuration to request the first wireless device to announce to other nearby wireless devices that the first wireless device is available for D2D communication;
• and
• transmit, without interference at a same time, one or more D2D announcements according to the received D2D announcement configuration.

A second wireless device, wherein the second wireless device comprises a processor and a memory, said memory containing instructions executable by said processor whereby said second wireless device is operative to:

• receive a device-to-device (D2D) announcement monitoring configuration from a base station, wherein the D2D announcement monitoring configuration configures the second wireless device to monitor for a D2D announcement by one or more first wireless devices;
• monitor for a D2D announcement by the one or more first wireless devices according to the received D2D announcement monitoring configuration by the one or more first wireless devices;
• and
• provide information to the base station, wherein the information relates to receipt of D2D announcements by the second wireless device according to detection of the received D2D announcement monitoring configuration by the one or more first wireless devices.