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Load balancing method and base station

A load balancing, base station technology, applied in the field of communication, can solve the problems of eNB2's available remaining resource estimation, inability to obtain the high load threshold of the target cell, etc.

Inactive Publication Date: 2014-03-19
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the current protocol, eNB1 can only obtain the uplink and downlink PRB usage of the target base station eNB2 cell and the remaining resources of the total PRB. However, due to the inability to obtain the high load threshold of the target cell, it is impossible to estimate the available remaining resources of eNB2. , causing the user to balance from the cell of eNB1 to the cell of eNB2 may trigger high load on the opposite end, and may even cause the user to perform load balancing ping-pong handover between two base station cells

Method used

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  • Load balancing method and base station

Examples

Experimental program
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Embodiment 1

[0096] The available resource quantity information is carried in the composite available capacity group information (Composite Available Capacity Group) in the resource status update message.

[0097] This embodiment adds an optional definition to the 3GPP 36.423 protocol extension IE Composite Available Capacity Group, namely: in this solution, the composite available capacity downlink information (Composite Available Capacity Downlink) and the composite available capacity uplink information filled in the Composite Available Capacity Group (Composite Available Capacity Uplink) is the available resources under the high load threshold of relative load balancing, that is, the corresponding value of Composite Available Capacity Downlink is: DL PRBHighLoadTh (downlink PRB high load threshold) minus DL Total PRB usage (downlink PRB total usage ), the corresponding value of Composite Available Capacity Uplink is: ULPRBHighLoadTh (uplink PRB high load threshold) minus UL Total PRB usa...

Embodiment 2

[0111] The radio resource status information in the resource status update message carries the available resource quantity information.

[0112] In this embodiment, two IEs are added to the Radio Resource Status in the 3GPP36.423 protocol RESOURCE STATUS UPDATE (resource status update) message: DL PRB available usage (downlink PRB available resources), UL PRB available usage (uplink PRB available resources) , which is defined as eNB2 notifying eNB1 how many PRB resources it can use in the same covered cell, as shown in Table 4, and the content and processing of other messages are the same as those in Embodiment 1.

[0113] Table 4Radio Resource Status

[0114]

[0115] At this point, the load balancing method includes:

[0116] Step 1: eNB1's cell PRB usage rate has exceeded the uplink (downlink) high load threshold of the local area, then send a RESOURCE STATUS REQUEST (Registration Request IE is "start") message to the neighboring base station eNB2;

[0117] Step 2: If ...

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Abstract

The invention discloses a load balancing method and a base station, and relates to communication technology. An available resource number indication field is added in resource status update information, so that a base station needing to perform load balancing can determine the user number performing load balancing switch according to the available resource number indication field so as to prevent other cells from entering a high load status due to load balancing, and avoid ping-pong switch due to the load balancing.

Description

technical field [0001] The invention relates to communication technology, in particular to a load balancing method and a base station. Background technique [0002] In order to achieve load balancing and overall throughput optimization of cells with the same coverage between base stations, based on the service load and hardware load of the cell, it is necessary to reselect the idle state UE (User Equipment, user equipment) and switch the connected state UE. Load adjustment, load balancing control for two cells with the same coverage. [0003] At present, the judgment of the business load of the cell is mainly based on the resource usage of the PRB (Physical Resource Block) of the cell, and the judgment is made periodically. When eNB1 (base station 1) judges that the cell has a high load, it will initialize and request eNB2 to continuously report the load of the cell at a specified time period. , eNB1 selects the user to handover to the cell of the target base station eNB2 a...

Claims

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Application Information

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IPC IPC(8): H04W28/08
Inventor 武跃龙韦书惠
Owner DATANG MOBILE COMM EQUIP CO LTD
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