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Load status indicator for multihop relay system using distributed scheduling

A load status, multi-hop relay technology, applied in relay system monitoring, radio relay system, transmission system, etc., can solve the problem of not knowing the bandwidth request and bandwidth allocation, etc.

Inactive Publication Date: 2014-05-14
NOKIA TECH OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, the BS is unaware of the bandwidth requests and bandwidth allocations of those nodes that are not directly affiliated to the BS

Method used

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  • Load status indicator for multihop relay system using distributed scheduling
  • Load status indicator for multihop relay system using distributed scheduling
  • Load status indicator for multihop relay system using distributed scheduling

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0024] Exemplary embodiments of the present invention provide load status indicators for at least a distributed scheduling mode of a relay network, and more specifically, exemplary embodiments of the present invention provide distributed scheduling for at least a multi-hop relay network. The uplink load status indicator for the regular scheduling mode.

[0025] An example of a multi-hop relay system is at figure 1 is shown for the distributed scheduling mode. For example, if the current load (reflecting resource allocation) is greater than the load threshold of RS5 (here, if the current load is greater than the load threshold, it is called "overload") at predetermined time intervals, then (using conventional techniques) at least three an exemplary situation.

[0026] In the first case, an overload in RS5 causes an overload along the route BS-RS2-RS3-RS5. Although the BS knows that an overload has occurred on this route, it does not know the actual overloaded RS.

[0027] I...

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PUM

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Abstract

A method includes receiving at a relay node a load status indicator from a subordinate relay node, determining a load status of the relay node and forwarding the received load status indicator to a super-ordinate node if the determined load status does not indicate an overload condition, otherwise if the determined load status does indicate an overload condition sending a load status indicator of the relay node to the superordinate node. Another method includes, in a multihop relay network having a plurality of relay nodes, receiving over a communication link at a network access node a load status indicator from a relay node, the load status indicator identifying a nearest relay node, if any, at which a current load exceeds a threshold; and using the received load status indicator at least when making a network admission decision for a user equipment.

Description

technical field [0001] The exemplary and non-limiting embodiments of the present invention relate generally to wireless communication systems, methods, devices and computer programs, and more particularly to the operation of wireless multi-hop relay networks. Background technique [0002] The definitions of various abbreviations appearing in the specification and / or drawings are as follows: [0003] BS base station [0004] RS relay station [0005] QoSQuality of service [0006] SIR signal to interference ratio [0007] UE user equipment [0008] Most existing standardized systems are designed for two-way communication between a central BS and UEs directly linked to the BS. Relaying is generally seen as a method to ensure capacity improvement and coverage extension in cellular systems. The additional communication traffic between the relay and the mobile station intervening in the link between the remote UE (R-UE) and the BS requires additional considerations regardin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/10H04B7/14H04W28/08H04B17/40
CPCH04L47/781H04L47/783H04L47/724H04L47/11H04B7/2606H04L47/822H04W84/047H04L12/5695H04W28/08H04L47/824H04L47/70H04W24/10
Inventor 郦振红王海峰
Owner NOKIA TECH OY