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Method and corresponding device for scheduling downlink radio resources

A wireless resource adjustment and allocation technology, applied in the field of communication, can solve problems such as reducing system spectrum efficiency, buffering data waiting to be sent, congestion, etc., to achieve the effect of improving system spectrum efficiency and reducing delay

Active Publication Date: 2014-11-05
ALCATEL LUCENT SHANGHAI BELL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that if the base station eNodeB allocates too many physical radio resources to the relay node RN in advance, some physical radio resources will be idle, resulting in waste of resources and reducing the spectral efficiency of the system
On the contrary, if the total amount of physical radio resources allocated by the base station eNodeB to the relay node RN is insufficient, there will be a large amount of buffered data waiting to be sent in the buffer of the relay node RN, which will cause congestion and cause additional delays at the relay node RN. Delay

Method used

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  • Method and corresponding device for scheduling downlink radio resources
  • Method and corresponding device for scheduling downlink radio resources
  • Method and corresponding device for scheduling downlink radio resources

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Embodiment Construction

[0029] The basic idea of ​​the present invention is to adopt a semi-static downlink radio resource scheduling method, in which the base station eNodeB periodically adjusts the resources allocated to the relay node RN according to the buffer status and traffic load status on the access link reported by the relay node RN. The total amount of physical radio resources available for relaying.

[0030] figure 1 An example of an environment in which the present invention may be implemented is schematically shown.

[0031] Such as figure 1 As shown, the environment 100 includes a base station eNodeB 101, a relay node RN 102 served by the base station eNodeB 101, a user equipment UE 103 (ie, the aforementioned macro user), and a user equipment UE 104 served by the relay node RN 102 .

[0032] For simplicity, in figure 1 Only one base station eNodeB 101 , a relay node RN 102 served by the base station eNodeB 101 , a user equipment UE 103 , and a user equipment UE 104 served by the r...

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Abstract

A method and a corresponding device for scheduling downlink radio resources are provided. The method for scheduling downlink radio resources in the present invention includes the steps: reporting the buffer state and service load state of a Relay Node (RN) to the base station periodically; adjusting the total radio resources allocated to the said RN according to the received buffer state and service load state; and sending the adjusted radio resources allocation information to the said RN. According to the present invention, the input service load and output service load of the RN are balanced, the data delay caused in the RN is reduced, and the frequency spectrum efficiency of the system is improved greatly.

Description

technical field [0001] The present invention relates to the field of communication. More specifically, the present invention relates to a method for scheduling downlink radio resources in a wireless communication network with relay nodes, and corresponding base stations and relay nodes. Background technique [0002] Relay technology has been accepted and adopted by LTE-Advanced, a long-term evolution project of 3GPP (the 3rd Generation Partnership Project, 3rd Generation Partnership Project), and is used to forward service / signaling data between eNodeB and UE, for better coverage or better throughput. A relay node RN is a network node dedicated to storing and forwarding data packets from a base station eNodeB to a user equipment UE, and in contrast to storing and forwarding data packets from a user equipment UE forwarded to the base station eNodeB. In a network using relay technology, user equipment UE either directly receives data packets from eNodeB (this kind of user e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/00
CPCH04W16/04H04W84/047
Inventor 刘建国沈钢王栋耀王伟陈继明
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD