Method, equipment and node for providing forwarding control information and performing data forwarding

Abstract

A method for providing forwarding control information for downlink is disclosed. According to the method, forwarding control information is sent to the relay node before corresponding downlink control information is sent to the user equipment, so as to provide the relay node with the time required for forwarding the downlink data based on the forwarding control information . The forwarding control information is a copy of the corresponding downlink control information to be sent to the user equipment, and a dedicated relay node identifier is assigned to it, so as to indicate to the relay node that the forwarding control information is used for corresponding said downlink Data forwarding control. In addition, the present invention also discloses a device and base station for providing forwarding control information for downlink, and a method, device and relay node for forwarding downlink data. According to the present invention, the relay forwarding control of the downlink can be realized under the condition of following the existing control protocol, so that the processing complexity is minimized and good compatibility is obtained.

Description

technical field [0001] The present invention relates to the field of relay technology, and more specifically relates to a method, device and base station for providing forwarding control information for downlink, and a method, device and relay node for forwarding downlink data. Background technique [0002] In the 3rd Generation Partnership Project follow-on Long Term Evolution (3GPP LTE-A), relay technology is adopted. Relay technology is a technology that processes and forwards received signals through relay nodes, thereby expanding wireless coverage and enhancing data throughput. Relay technology can improve coverage and cell edge throughput for high data rate requirements, and can be used to provide coverage in new areas; it can also be applied to scenarios such as group mobility and temporary network deployment. Using relay technology, the relay node (RN) divides the relatively poor-quality direct link from the evolved Node B (eNB) to the user equipment (UE) into two s...

AI Technical Summary

Problems solved by technology

However, both of these two solutions need to add new content to the existing protocol, so they have poor compatibility with the existing protocol

Moreover, additional implementation complexity is introduced

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