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Acknowledgement information feedback method and system

A technology of confirmation information and feedback system, applied in the field of the third-generation partnership program, it can solve the problem of not guaranteeing PCCUL subframe, and achieve the effect of solving uplink confirmation/unconfirmation information feedback, ensuring backward compatibility, and improving flexibility.

Inactive Publication Date: 2013-06-05
ZTE CORP
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  • Application Information

AI Technical Summary

Problems solved by technology

When performing UL backhaul ACK / NACK feedback, it must be ensured that the subframe is a backhaul subframe, but due to different backhaul subframe configurations used by different CCs, it cannot be guaranteed that the PCC UL subframe is a UL backhaul subframe

Method used

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  • Acknowledgement information feedback method and system
  • Acknowledgement information feedback method and system
  • Acknowledgement information feedback method and system

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Embodiment approach

[0048] As an embodiment of the present invention, the timing relationship may be as follows: Un UL ACK / NACK corresponding to #n Un DL subframe is fed back on #(n+k)Un UL subframe of PCC, where n and k take The value is an integer.

[0049] Preferably, when the PCC and SCC adopt the same backhaul subframe configuration, for the FDD method, the value of k is 4; for the TDD method, the value of k is determined as the first Un UL subframe that allows feedback of Un UL ACK / NACK and the corresponding The interval between Un DL subframes, and k is greater than or equal to 4.

[0050] When any two or more CCs in each component carrier CC adopt different backhaul subframe configurations, for FDD and TDD methods, the k value is determined as the first Un UL subframe that allows feedback of Un ULACK / NACK and the corresponding The interval between Un DL subframes, and k is greater than or equal to 4.

[0051] Combine below Figure 4 and Figure 5 The specific examples shown illustrate...

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Abstract

The invention discloses an acknowledgement information feedback method and an acknowledgement information feedback system. The method comprises the following steps that: a network side and a receiving side determines a timing relationship of Un uplink acknowledgement / negative acknowledgement (UL ACK / NACK) information feedback according to the backhaul sub-frame configurations corresponding to a primary component carrier (PCC) and / or a secondary component carrier (SCC); and the receiving side executes the Un UL ACK / NACK information feedback according to the determined timing relationship. The method and the system can be well applied to a link from an evolved Node B to a relay node, the feedback flexibility of the UL ACK / NACK information is improved, backward compatibility (with a long term evolution (LTE) system) is ensured, and the problems of the UL ACK / NACK feedback are also solved.

Description

technical field [0001] The present invention relates to the technical field of the 3rd Generation Partnership Project (3GPP, The 3rd Generation Partnership Project), in particular to a confirmation information feedback method and system. Background technique [0002] Such as figure 1 As shown, a new link is added after the introduction of the relay node (RN, Relay Node) in the Long Term Evolution Advanced (LTE-A, Long Term Evolution Advanced) system, and the corresponding terms include: base station (eNB, eNode-B) and The link between RN is called backhaul link (backhaul link or relay link), the link between RN and user equipment (UE, User Equipment) is called access link (access link), eNB and UE The link between them is called direct link (direct link). [0003] When an inband-relay is used, that is, the link from the eNB to the RN and the link from the RN to the UE operate on the same frequency resource. Since the inband-relay transmitter will interfere with its own re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/16
Inventor 毕峰杨瑾袁明梁枫吴栓栓
Owner ZTE CORP
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