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Method, system and equipment for controlling flow of backhaul link

A backhaul link and flow control technology, applied in the field of communication, can solve problems such as delay, data flow mismatch between backhaul link and access link, waste of backhaul link resources, etc.

Active Publication Date: 2011-05-11
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present invention provide a backhaul link flow control method, system, and device, which are used to avoid data flow mismatch between the backhaul link and the access link, thereby solving RN downlink data congestion or R-UE downlink data delay, and resource waste on the backhaul link

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  • Method, system and equipment for controlling flow of backhaul link
  • Method, system and equipment for controlling flow of backhaul link
  • Method, system and equipment for controlling flow of backhaul link

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Embodiment Construction

[0077] The embodiment of the present invention proposes: RN obtains the downlink data traffic measurement result and judges whether the downlink data traffic measurement result satisfies a preset trigger condition, and the trigger condition is used to trigger sending a downlink rate adjustment request; when the RN When judging that the downlink data traffic measurement result satisfies the preset trigger condition, the RN sends a downlink rate adjustment request to the DeNB, so that the DeNB adjusts the downlink data on the backhaul link according to the downlink rate adjustment request Scheduling and transmission; otherwise, the RN does not send a downlink rate adjustment request to the DeNB.

[0078] The technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Apparently, the described embodiments are part of the embodiments of the present invention, not all of them. Ba...

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Abstract

The embodiment of the invention discloses method, system and equipment for controlling the flow of a backhaul link. The method comprises the following steps: a relay node (RN) acquires a downlink data traffic measurement result; the RN judges whether the downlink data traffic measurement result meets a preset trigger condition, wherein the trigger condition is used for triggering to send a downlink speed adjustment request; when the RN judges that the downlink data traffic measurement result meets the preset trigger condition, the RN sends the downlink speed adjustment request to a donor evolved node B (DeNB), so that the DeNB adjusts the downlink data scheduling and transmission on the backhaul link according to the downlink speed adjustment request; and otherwise, the RN doesn't send the downlink speed adjustment request to the DeNB. The invention avoids the mismatch of data stream between the backhaul link and the access link, so as to solve the problem of downlink data congestion of the RN or downlink data delay of the relay user equipment (R-UE), as well as the problem of waste of the resources on the backhaul link.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a method, system and equipment for backhaul link flow control. Background technique [0002] After the LTE-A (LTE-Advanced, LTE subsequent evolution) system introduces Relay (relay), such as figure 1 As shown, the following nodes, interfaces and links are defined: nodes include DeNB (Donor eNB, donor base station), which is eNB (Evolved Node B, evolved base station) with wireless connection with RN; RN (Relay-Node, relay Node), which is an entity existing between DeNB and UE (User Equipment, user terminal); R-UE (Relay-UE), which is a UE for data interaction with RN, can be LTE (Long Term Evolution, long-term evolution) UE; Macro UE is a UE that directly exchanges data with DeNB and has nothing to do with RN itself. The interface includes: Un interface, which is an interface between RN and DeNB; Uu interface, which is an interface between UE and RN. Wireless link...

Claims

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Application Information

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IPC IPC(8): H04W28/10H04W72/12H04L1/00
Inventor 刘佳敏谌丽鲍炜
Owner DATANG MOBILE COMM EQUIP CO LTD
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