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System and method for terminal-group based HARQ for cellular integrated d2d communications

A technology of hybrid automatic retransmission and terminal group, applied in the field of HARQ system, can solve problems such as not considering UE grouping

Active Publication Date: 2015-08-26
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, current HARQ implementations do not take UE grouping into consideration and fail to efficiently utilize the D2D UE cooperation capability

Method used

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  • System and method for terminal-group based HARQ for cellular integrated d2d communications
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  • System and method for terminal-group based HARQ for cellular integrated d2d communications

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Embodiment Construction

[0018] The making and using of the presently preferred embodiments are discussed in detail below. It should be appreciated, however, that the present invention provides many applicable inventive concepts that can be embodied in a wide variety of specific contexts. The specific embodiments discussed are merely illustrative of specific ways to make and use the invention, and do not limit the scope of the invention.

[0019] figure 1 A system 100 for D2D communication with UE cooperation is illustrated. Multiple UEs cooperate to form a logical / virtual multipoint (ViMP) node 130 that acts as a single distributed virtual transceiver. The term ViMP node may also be referred to herein as a UE group, cooperative UE or joint reception / transmission group. ViMP node 130 includes a set of Target UEs (TUEs) 120 and Cooperating UEs (CUEs) 125 . CUE 125 facilitates TUE 120 in communicating with a wireless network (not shown), eg, to receive data on the downlink and / or transmit data on th...

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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.

Description

[0001] The present invention claims U.S. Provisional Patent Application No. 61 / 738,907, filed December 18, 2012, entitled "System and Method for Network Coding Assisted Terminal-Group Based HARQ," and filed March 14, 2013, entitled " Priority to U.S. Nonprovisional Patent Application No. 13 / 829,188 for "System and Method for Terminal-Group Based HARQ for Cellular Integrated D2D Communications," the contents of both prior applications are hereby incorporated by reference as reproduced in their entirety . technical field [0002] The present invention relates to the field of wireless communication, and in a specific embodiment, relates to a system and method of terminal group-based HARQ for cellular integrated device-to-device (D2D) communication. Background technique [0003] Direct mobile communication (DMC) and cellular-controlled device-to-device (D2D) communication are expected to play important roles in next-generation wireless networks. User Equipment (UE) cooperation ...

Claims

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Application Information

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IPC IPC(8): H04W4/06
CPCH04L1/188H04L2001/0097H04L2001/0093H04L1/1816H04L1/0076H04W76/14H04L1/08H04L1/1829H04L12/189H03M13/1102H03M13/2906H04L1/1607
Inventor 阿民·玛瑞夫默罕默德哈迪·巴里马江镭
Owner HUAWEI TECH CO LTD
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