System and method for terminal-group based HARQ for cellular integrated D2D communications
First Claim
1. A method for supporting two-level terminal-group based hybrid-automatic repeat request (HARQ) signaling, the method comprising:
- receiving, at a cooperating user equipment (CUE) within a virtual multi-point (ViMP) node comprising a plurality of UEs, a data packet for a target UE (TUE) that is broadcasted from a base station (BS) to the ViMP node;
decoding the data packet; and
upon successfully decoding the data packet, and in an absence of a negative acknowledgement (NACK) message from the TUE, broadcasting, by the CUE, the data packet within the ViMP node until a timer pre-established by the BS expires or an acknowledgement (ACK) message is received from the TUE or the ViMP node.
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Accused Products
Abstract
System and method embodiments are provided to support network communications with groups of UEs. The embodiments include a two-level group-based hybrid-automatic repeat request (HARQ) mechanism and acknowledgement (ACK)/negative ACK (NACK) feedback. An embodiment method includes receiving, at a UE within a virtual multi-point (ViMP) comprising UEs, a data packet for a target UE (TUE) that is broadcasted from a base station (BS) to the ViMP node, decode the data packet, and upon successfully decoding the data packet, broadcasting the data packet to the UEs within the ViMP node until a timer pre-established by the BS expires or an ACK message is received from the TUE or the ViMP node. In an embodiment, broadcasted data received in the ViMP node is re-broadcasted upon receiving a negative acknowledgment (NACK) message from the TUE, a beacon UE, or any of the UEs within the ViMP node.
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Citations
24 Claims
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1. A method for supporting two-level terminal-group based hybrid-automatic repeat request (HARQ) signaling, the method comprising:
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receiving, at a cooperating user equipment (CUE) within a virtual multi-point (ViMP) node comprising a plurality of UEs, a data packet for a target UE (TUE) that is broadcasted from a base station (BS) to the ViMP node; decoding the data packet; and upon successfully decoding the data packet, and in an absence of a negative acknowledgement (NACK) message from the TUE, broadcasting, by the CUE, the data packet within the ViMP node until a timer pre-established by the BS expires or an acknowledgement (ACK) message is received from the TUE or the ViMP node. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for supporting two-level terminal-group based hybrid-automatic repeat request (HARQ) signaling, the method comprising:
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receiving, at a target user equipment (TUE) within a virtual multi-point (ViMP) node comprising a plurality of UEs, a data packet that is broadcasted from a base station (BS) to the ViMP node and intended for the TUE; receiving, at the TUE, a retransmission of the data packet from a cooperating user equipment (CUE) in the ViMP node, without the TUE transmitting an acknowledgement (ACK) message or negative ACK (NACK) message for the data packet; decoding the data packet; and upon successfully decoding the data packet, broadcasting, by the TUE, the ACK message to the UEs in the ViMP node and to the BS. - View Dependent Claims (13, 14, 15)
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16. A cooperating user equipment (UE) supporting two-level terminal-group based hybrid-automatic repeat request (HARQ) signaling, the UE comprising:
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a processor; and a computer readable storage medium storing programming for execution by the processor, the programming including instructions to; receive, within a virtual multi-point (ViMP) node comprising multiple UEs, a data packet for a target UE (TUE) that is broadcasted from a base station (BS) to the ViMP node; decode the data packet; and upon successfully decoding the data packet, and in an absence of a negative acknowledgement (NACK) message from the TUE, broadcast the data packet to the UEs in the ViMP node until a timer pre-established by the BS expires or an acknowledgement (ACK) message is received from the TUE. - View Dependent Claims (17, 18, 19, 20)
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21. A target user equipment (TUE) supporting two-level terminal-group based hybrid-automatic repeat request (HARQ) signaling, the TUE comprising:
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a processor; and a computer readable storage medium storing programming for execution by the processor, the programming including instructions to; receive, within a virtual multi-point (ViMP) node comprising multiple UEs, a data packet that is broadcasted from a base station (BS) to the ViMP node and intended for the TUE; receive a retransmission of the data packet from a cooperating user equipment (CUE) in the ViMP node, without the TUE transmitting an acknowledgement (ACK) message or negative ACK (NACK) message for the data packet; decode the data packet; and upon successfully decoding the data packet, broadcast the ACK message to the UEs within the ViMP node and to the BS. - View Dependent Claims (22, 23, 24)
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Specification