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HARQ (hybrid automatic repeat request) method and system for return link

A hybrid automatic retransmission and backhaul link technology, which is applied in the direction of error prevention/detection, electrical components, wireless communication, etc. using the return channel, can solve problems such as HARQ feedback, and achieve compatibility and flexible backhaul link resources. The effect of the configuration

Active Publication Date: 2013-01-23
盐城恒远投资发展有限公司
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Problems solved by technology

However, as the backhaul link data requirements change and other reasons, when more available backhaul link subframe configurations are set for the backhaul link, then correspondingly, the existing Un HARQ method cannot be well applied to more Flexible backhaul link resource configuration cannot effectively feedback HARQ

Method used

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  • HARQ (hybrid automatic repeat request) method and system for return link
  • HARQ (hybrid automatic repeat request) method and system for return link
  • HARQ (hybrid automatic repeat request) method and system for return link

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Embodiment Construction

[0055] In the present invention, the network side may include one or more of the following entities: eNB, RN, cell coordination entity (Multi-cell / multicast Coordination Entity, MCE), gateway (Gateway, GW), mobility management device (Mobility Management Entity, MME), Evolved Universal Terrestrial Radio Access Network (Evolved Universal Terrestrial Radio Access Network, EUTRAN), Operation Administration and Maintenance (OAM) manager, in the embodiment of the present invention, eNB is used as the network The implementation process is similar when using other network-side entities.

[0056] First, the original backhaul link subframe and the supplementary backhaul link subframe are described.

[0057] The eNB configures corresponding backhaul link subframes for the RN according to the resource requirements of the backhaul link, including uplink / downlink subframes of the backhaul link, which are used for uplink / downlink data transmission of the backhaul link. TDD available in the ...

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Abstract

The invention provides an HARQ (hybrid automatic repeat request) method and system for a return link. The method comprises the following steps of: establishing an HARQ course for a TB transmitted in a supplement return link subframe by an RN (radio navigation) according to the configuration indication of a supplement return link subframe of eNB (evolved Node B); and carrying out ACK (acknowledgement character) / NACK (negative acknowledgement) feedback according of the HARQ course and a set feedback form. The invention also provides the HARQ system for the return link, and the system can be used for establishing the HARQ course for the supplement return link under the condition of configuring the supplement return link subframe, so that effective feedback of transmission of return link information can be realized, more flexible return link source configuration can be provided, and the compatibility of the system is guaranteed.

Description

technical field [0001] The present invention relates to wireless communication technology, in particular to a backhaul link hybrid automatic repeat request (Hybrid Automatic Repeat Request, HARQ) method and system. Background technique [0002] In a network where a relay station (Relay Node, RN) is introduced, such as figure 1 As shown, the link between the evolved base station (eNB) and the macro cell user equipment (Macro User Equipment, M-UE) in the network is a direct link (Direct Link), and the link between the eNB and RN is a backhaul The link (Backhaul Link) or the relay link is also called the Un interface. The link between the RN and the relay user equipment (Relay User Equipment, R-UE) is an access link (Access Link). The serving cell is called an R-cell, and the base station providing service for the relay station on the backhaul link is called the home base station DeNB (Donor eNB) of the relay station. [0003] When inband-relay is used, that is, when the back...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04L1/16H04W72/04
Inventor 杨瑾毕峰梁枫袁明吴栓栓
Owner 盐城恒远投资发展有限公司
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