NETWORK COORDINATION FOR CROSS LINK INTERFERENCE MITIGATION
Disclosed herein are system, method, and computer program product embodiments for identifying an aggressor device or an aggressor beam of an aggressor device. The embodiments further mitigate the impact of the identified aggressor device or the identified aggressor beam of the aggressor device.
1 . A base station, comprising:
radio front end circuitry; and
processing circuitry coupled to the radio front end circuitry and configured to:
identify an aggressor device based at least in part on a crosslink interference (CLI) measurement report from a victim user equipment (UE) device;
transmit, via the radio front end circuitry, a transmission information exchange request message to the aggressor device;
receive, via the radio front end circuitry, a transmission information exchange response message from the aggressor device, wherein the transmission information exchange response message comprises an indication that the transmission information exchange request message was accepted by the aggressor device and transmission information for the aggressor device; and
transmit, via the radio front end circuitry, a CLI mitigation request message to the victim UE device based at least in part on the transmission information for the aggressor device.
2 . The base station of claim 1 , wherein the processing circuitry is further configured to:
transmit, via the radio front end circuitry, a CLI measurement configuration to the victim UE device; and
receive, via the radio front end circuitry, the CLI measurement report from the victim UE device.
3 . The base station of claim 1 , wherein the transmission information exchange response message comprises a cell identifier, a Bandwidth Part (BWP) identifier, an identifier for the aggressor device, or a Supplementary Uplink (SUL) indication.
4 . The base station of claim 1 , wherein the CLI mitigation request message comprises an instruction for the victim UE device to schedule downlink (DL) transmission based at least in part on the victim UE device being in a DL slot for neighboring cells.
5 . The base station of claim 1 , wherein the CLI mitigation request message comprises an instruction for the victim UE device to use one or more beams for a downlink (DL) reception.
6 . The base station of claim 1 , wherein the CLI mitigation request message comprises an instruction to increase a downlink (DL) transmit power for the victim UE device.
7 . The base station of claim 1 , wherein the CLI mitigation request message comprises an instruction to schedule the victim UE device on a different time-frequency resource than the aggressor device.
8 . The base station of claim 1 , wherein the transmission information exchange request message comprises an identifier for the aggressor device and a transmission information type for the aggressor device.
9 . The base station of claim 8 , wherein the transmission information type comprises a downlink/uplink (DL/UL) configuration, power control parameters, a resource allocation, a scheduling decision, or transmission (TX) beam information of the aggressor device.
10 . A method of mitigating a victim user equipment (UE) device, comprising:
identifying an aggressor device based at least in part on a crosslink interference (CLI) measurement report from the victim UE device;
transmitting a transmission information exchange request message to the aggressor device;
receiving a transmission information exchange response message from the aggressor device, wherein the transmission information exchange response message comprises an indication that the transmission information exchange request message was accepted by the aggressor device and transmission information for the aggressor device; and
transmitting a CLI mitigation request message to the victim UE device based at least in part on the transmission information for the aggressor device.
11 . The method of claim 10 , further comprising:
transmitting a CLI measurement configuration to the victim UE device; and
receiving the CLI measurement report from the victim UE device.
12 . The method of claim 10 , wherein the transmission information exchange response message comprises a cell identifier, a Bandwidth Part (BWP) identifier, an identifier for the aggressor device, or a Supplementary Uplink (SUL) indication.
13 . The method of claim 10 , wherein the CLI mitigation request message comprises an instruction for the victim UE device to schedule downlink (DL) transmission based at least in part on the victim UE device being in a DL slot for neighboring cells.
14 . The method of claim 10 , wherein the transmission information exchange request message comprises an identifier for the aggressor device and a transmission information type for the aggressor device.
15 . The method of claim 14 , wherein the transmission information type comprises a downlink/uplink (DL/UL) configuration, power control parameters, a resource allocation, a scheduling decision, or transmission (TX) beam information of the aggressor device.
16 . A non-transitory computer-readable medium having instructions stored thereon that, when executed by a base station, cause the base station to perform operations comprising. identifying an aggressor device based at least in part on a crosslink interference (CLI) measurement report from the victim user equipment (UE) device;
transmitting a transmission information exchange request message to the aggressor device;
receiving a transmission information exchange response message from the aggressor device, wherein the transmission information exchange response message comprises an indication that the transmission information exchange request message was accepted by the aggressor device and transmission information for the aggressor device; and
transmitting a CLI mitigation request message to the victim UE device based at least in part on the transmission information for the aggressor device.
17 . The non-transitory computer-readable medium of claim 16 , wherein the operations further comprise:
transmitting a CLI measurement configuration to the victim UE device; and
receiving the CLI measurement report from the victim UE device.
18 . The non-transitory computer-readable medium of claim 16 , wherein the transmission information exchange response message comprises a cell identifier, a Bandwidth Part (BWP) identifier, an identifier for the aggressor device, or a Supplementary Uplink (SUL) indication.
19 . The non-transitory computer-readable medium of claim 16 , wherein the transmission information exchange request message comprises an identifier for the aggressor device and a transmission information type for the aggressor device.
20 . The non-transitory computer-readable medium of claim 19 , wherein the transmission information type comprises a downlink/uplink (DL/UL) configuration, power control parameters, a resource allocation, a scheduling decision, or transmission (TX) beam information of the aggressor device.