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Radio network node and method for determining whether a wireless device is a suitable candidate for handover to a target cell for load balancing reasons

A wireless device and target cell technology, applied in wireless communication, network traffic/resource management, electrical components, etc., can solve problems such as low network resource utilization, high delay, and non-optimal network performance

Active Publication Date: 2020-03-24
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This selection of wireless devices can be made randomly, which is inefficient in many scenarios and can lead to non-optimal network performance, such as lower end-user and system throughput, higher latency, and lower network resource utilization

Method used

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  • Radio network node and method for determining whether a wireless device is a suitable candidate for handover to a target cell for load balancing reasons
  • Radio network node and method for determining whether a wireless device is a suitable candidate for handover to a target cell for load balancing reasons
  • Radio network node and method for determining whether a wireless device is a suitable candidate for handover to a target cell for load balancing reasons

Examples

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Embodiment Construction

[0025] As part of the examples developed herein, some issues will first be identified and discussed.

[0026] Wireless device selection algorithms must be used when the wireless communication network has tasks that need to be performed by having wireless devices make measurements for neighboring cells. The wireless device selection algorithm may be based on a random selection of wireless devices. In many cases, the network wishes to find a wireless device with a particular cell as the preferred choice on a particular frequency.

[0027] The problem with randomly selecting wireless devices is that when wireless devices are found for a certain cell or group of cells, the probability of finding them is only related to the coverage overlap of the source and target cells and the statistical distribution of the wireless devices in that coverage area. In many cases this can be inefficient.

[0028] For example, in the case of a heterogeneous network (HetNet) with small cells coveri...

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Abstract

A method in a radio network node for determining whether a wireless device is a suitable candidate for handover to a target cell for load balancing reasons. The radio network node serves the source cell. The method comprises determining (201) a first coverage level of a target cell based on a first measurement report. The method also includes storing (202) measurement data obtained by a second measurement, the second measurement being at least one of a layer 2 measurement and a layer 1 measurement. The method also includes establishing (203) a correlation between the determined first coverage level and the stored measurement data, and updating (204) the statistical data based on the established correlation. The method also includes determining (205) whether the wireless device is a suitable candidate for handover to the target cell for load balancing reasons based on the updated statistics.

Description

technical field [0001] Embodiments herein relate to a radio network node and a method in a radio network node. In particular, they relate to determining whether a wireless device is a suitable candidate for handover to a target cell for load balancing reasons. Background technique [0002] A communication device such as a wireless device is also known as eg user equipment (UE), mobile terminal, wireless terminal and / or mobile station. A wireless device is capable of communicating wirelessly within a cellular communication network or wireless communication system (sometimes also called a cellular radio system or cellular network). The communication may be via the radio access network (RAN) and possibly one or more core networks comprised in the cellular communication network, for example between two wireless devices, between a wireless device and a conventional telephone and / or between a wireless device Execute with the server. [0003] A wireless device may also be called...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/02H04W36/22H04W36/24
CPCH04W36/22H04W36/0083H04W36/0094H04W36/0085H04W28/0958H04W28/0861
Inventor 霍坎·阿克塞尔松派瑞莎·帕克尼亚克萨缪尔·阿克塞尔松史蒂芬·约翰逊弗雷迪克·古纳尔森
Owner TELEFON AB LM ERICSSON (PUBL)