发明名称 |
System and method for terminal-group based HARQ for cellular integrated D2D communications |
摘要 |
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. |
申请公布号 |
US9172512(B2) |
申请公布日期 |
2015.10.27 |
申请号 |
US201313829188 |
申请日期 |
2013.03.14 |
申请人 |
Futurewei Technologies, Inc. |
发明人 |
Maaref Amine;Baligh Mohammadhadi;Ma Jianglei |
分类号 |
H04L1/18;H04L1/00 |
主分类号 |
H04L1/18 |
代理机构 |
Slater & Matsil, LLP |
代理人 |
Slater & Matsil, LLP |
主权项 |
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. |
地址 |
Plano TX US |