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Management method and scheduling machine for wireless resource

A technology of wireless resource and management method, applied in the field of wireless resource management method and scheduler

Active Publication Date: 2011-11-30
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005]However, the resource utilization rate of the resource soft reuse method mentioned above is very low
For example, in Figure 1, each cell is reserved for edge UE The reuse factor of resources (A, B, or C) is 3, and the utilization rate is only 1 / 3. Even if there is no edge UE in a certain cell, the wireless resources reserved in advance for edge UE cannot be used by neighboring cells.

Method used

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  • Management method and scheduling machine for wireless resource
  • Management method and scheduling machine for wireless resource
  • Management method and scheduling machine for wireless resource

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Experimental program
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Embodiment 1

[0037] In essence, the interference can be considered to be caused by the use of too many radio resources by the cell. Assuming that each adjacent cell uses completely orthogonal system resources, the cell interference will disappear immediately. However, the resulting The problem is that the utilization of system resources is severely reduced.

[0038]In the present invention, the wireless resources of each cell are divided into two sets: a dedicated resource set and an opportunity resource set. The resources in the dedicated resource set are unique to the cell and are completely controlled by the cell scheduler. The dedicated resource sets of different cells are orthogonal to each other and will not interfere with each other, or they are not completely orthogonal and will cause minor interference but not Affect data receiving performance. However, the resources in the opportunity resource sets of each cell are partly or all the same, or it can be understood that the opportu...

Embodiment 2

[0063] The method of occupying the resources in the opportunistic resource set with a certain probability introduced in the first embodiment adopts the "one-time" occupation method. For example, when the resources of 3 resources need to be occupied, the resources are occupied with a probability of P30. This method It is an "absolute" occupation: either three resources are successfully occupied at one time, or none of the resources can be occupied. In this embodiment, the "sequential" occupation method is adopted. For example, when it is necessary to occupy 3 resources, first occupy a resource with a certain probability. If successful, continue to occupy the second resource with a certain probability. After success, , and then occupy the third resource with a certain probability. Among them, when the occupancy fails, it will exit directly. This method is a "relative" occupancy and a compromise: it may not occupy three resources, but It's quite possible to take up a resource or ...

Embodiment 3

[0073] In this embodiment, on the basis of Embodiment 1 or Embodiment 2, the radio resource management method is further optimized to further avoid interference from neighboring cells.

[0074] In Embodiment 1 or Embodiment 2, the probability of occupying the opportunity resource set is reasonably set to avoid the interference of adjacent cells. Although multiple cells use a small number of resources in the opportunity resource set, these resources may still , frequency, codeword or space and other resources are overlapped in form, therefore, there may still be a small amount of inter-adjacent interference. Therefore, in order to solve this problem, the resources in the opportunity resource set can be numbered according to a certain rule, and the cells sharing these resources select resources according to different numbering orders. For resources, cells with an even-numbered cell id preferentially select resources with a higher number. More perfectly, assuming that there are ...

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Abstract

The invention discloses a radio resource management method, which is designed against a plurality of adjacent cells in a flat network, comprising the following steps: each cell divides a part of opportunity radio resources in the radio resources which are managed by the cell, part or all of the opportunity radio resources divided by the various cells are the same as each other; and the cells occupy the opportunity radio resources according to the pre-set probabilities thereof. The interferences of the adjacent cells can be avoided as far as possible by setting the reasonable probability factor and setting the different resources in the priority selected opportunity resource sets of the various cells, and the various cells share the resources in the opportunity resource sets, thus greatly improving the utilization rate of the resources. The invention further provides a scheduler which is corresponding to the method.

Description

technical field [0001] The present invention relates to the technical field of wireless resource management, in particular to a management method and a scheduler for wireless resources of a flat network. Background technique [0002] In the existing 3G (3rd Generation, third-generation mobile communication) system, a three-dimensional network structure is adopted, and a centralized control node device - a radio network controller (RadioNetwork Controller, RNC) is set on the access network side. It is responsible for the radio resource management and allocation of the cells within its jurisdiction. Due to the existence of too many nodes in the three-dimensional network, additional data transmission and transit delays will be introduced. In order to solve this problem, the mobile communication systems currently being studied, for example, the long-term evolution (Long Term Evolution, LTE) and 4G (4rd Generation, fourth-generation mobile communication) systems of mobile commun...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04
Inventor 高卓毕海洲
Owner DATANG MOBILE COMM EQUIP CO LTD