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Relay communication method

A relay communication and relay node technology, applied in the field of communication, can solve problems such as low resource utilization, and achieve the effect of improving resource utilization

Active Publication Date: 2019-07-26
CHINA ACADEMY OF INFORMATION & COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The design of access and backhaul links should consider duplex restrictions. In the relay link in the 4G LTE system, the backhaul link and the access link are completely time-division multiplexed. The backhaul link can only be Send on MBSFN subframe, the disadvantage of this method is that the resource utilization rate is low

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Embodiment Construction

[0015] In order to make the object, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below with reference to the accompanying drawings and examples.

[0016] In the embodiment of the present application, a relay communication method is provided, and the subframes in each frame are set as downlink access subframes, uplink access subframes, downlink return subframes, uplink return subframes, and downlink shared subframes Or the uplink shared subframe, on the relay node, the uplink data of the access link can be received for the downlink shared subframe, and the downlink data of the backhaul link can also be received; the uplink data of the access link can be sent for the uplink shared subframe The downlink data can also be sent to the uplink data of the backhaul link. Through this solution, resource utilization can be improved.

[0017] In the embodiment of the present application, th...

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Abstract

The invention provides a relay communication method. The method comprises the following steps: setting subframes in each frame as a downlink access subframe, an uplink access subframe, a downlink return subframe, an uplink return subframe, a downlink shared subframe or an uplink shared subframe, and aiming at the downlink shared subframe, receiving uplink data of an access link and downlink data of a return link on a relay node; for uplink shared subframes, downlink data of an access link can be sent, and uplink data of a backhaul link can also be sent. The method can improve the resource utilization rate.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a relay communication method. Background technique [0002] Supporting wireless backhaul relay links enables more flexible and dense cell deployment. Since the future mobile communication system can provide greater bandwidth and can also deploy massive MIMO or multi-beam systems, it provides an opportunity to deploy unified access and backhaul links, making dense network deployment easier. [0003] see figure 1 , figure 1 It is a schematic diagram of the access and backhaul links in the existing implementation. figure 1 Relay nodes can multiplex access and backhaul links in time, frequency, or space. The access and backhaul links may be on the same frequency band or on different frequency bands, and the requirement for the access and backhaul links to be on the same frequency is more important because more compact interoperability is required to configure duplex constra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/22H04W72/12H04L5/00
CPCH04W40/22H04L5/0053H04W72/20
Inventor 焦慧颖
Owner CHINA ACADEMY OF INFORMATION & COMM