Uu-based sidelink feedback
AssigneeQUALCOMM Incorporated
InventorsAnantharaman BALASUBRAMANIAN, Shuanshuan WU
Life of this patent
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Abstract
Various aspects of the present disclosure generally relate to wireless communication. Some aspects relate to hybrid automatic repeat request (HARQ) feedback for sidelink communications. Some aspects more specifically relate to providing HARQ feedback for sidelink communications over a Uu interface. In some aspects, HARQ feedback is provided over a Uu interface for sidelink communications between vehicles. For example, the HARQ feedback may be provided via a vehicle-to-network-to-vehicle (V2N2V) interface in response to a connected groupcast or connectionless groupcast communication.
Claims30
An apparatus for wireless communication at a transmitting user equipment (Tx UE), comprising:
- one or more memories storing processor-executable code;
- and
- one or more processors coupled to the one or more memories, at least one of the one or more processors configured to cause the Tx UE to:
- receive a vehicle-to-network-to-everything (V2N2X) configuration for communication with one or more receiving UEs (Rx UEs);
- transmit, via a Uu interface, a V2N2X message to a serving network node in accordance with the V2N2X configuration;
- and
- receive, via the Uu interface, feedback associated with the V2N2X message via the serving network node, the feedback being associated with one or more feedback messages output by the one or more Rx UEs.
An apparatus for wireless communication at a receiving user equipment (Rx UE), comprising:
- one or more memories storing processor-executable code;
- and
- one or more processors coupled to the one or more memories, at least one of the one or more processors configured to cause the Rx UE to:
- receive, via a Uu interface, one or more vehicle-to-network-to-everything (V2N2X) messages from a serving network node, the one or more V2N2X messages each being associated with a transmitting UE (Tx UE);
- receive one or more uplink feedback configurations from the serving network node;
- and
- transmit, via the Uu interface, one or more feedback messages, each associated with at least one of the one or more V2N2X messages, to the serving network node in accordance with the one or more uplink feedback configurations.
An apparatus for wireless communication at a transmitting network node, comprising:
- one or more memories storing processor-executable code;
- and
- one or more processors coupled to the one or more memories, at least one of the one or more processors configured to cause the transmitting network node to:
- identify one or more receiving network nodes, each associated with one or more receiving user equipments (UEs) (Rx UEs);
- receive, via a Uu interface, a vehicle-to-network-to-everything (V2N2X) message transmitted by a transmitting UE (Tx UE);
- transmit the V2N2X message to the one or more receiving network nodes via an X2 interface;
- receive one or more feedback messages from the one or more Rx UEs;
- and
- transmit feedback to the Tx UE via the Uu interface, the feedback being associated with the one or more feedback messages received from the one or more Rx UEs.
An apparatus for wireless communication at a receiving network node, comprising:
- one or more memories storing processor-executable code;
- and
- one or more processors coupled to the one or more memories, at least one of the one or more processors configured to cause the receiving network node to:
- receive, via an X2 interface, a vehicle-to-network-to-everything (V2N2X) message from a transmitting network node;
- transmit, via a Uu interface, one or more uplink feedback configurations to one or more receiving user equipments (Rx UEs);
- receive, via the Uu interface, one or more feedback messages, each associated with one of the one or more Rx UEs;
- and
- transmit each of the one or more feedback messages to the transmitting network node via the X2 interface.
Dependencies are inferred from the claim text.