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Method of controlling handover, base station and mobile station for use in a communication network

A technology of communication network and mobile communication network, which is applied in the direction of wireless communication, electrical components, radio/inductive link selection and arrangement, etc., and can solve the problem of increasing ping-pong events, etc.

Inactive Publication Date: 2008-01-23
ALCATEL LUCENT SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In contrast, in a decentralized structure, each handover coincides with a change in the handover decision entity, leading to an increased risk of ping-pong events

Method used

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  • Method of controlling handover, base station and mobile station for use in a communication network
  • Method of controlling handover, base station and mobile station for use in a communication network

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0037] Fig. 1 shows a schematic block diagram of a base station 1 for use in a mobile communication network according to an embodiment of the present invention.

[0038] According to the embodiment of Fig. 1, base station 1 comprises transceiving means 2, estimation means 3, comparison means 4, handover control means 5 comprising timer means 6 and handover decision algorithm 6', first storage means 7, and optionally, Second storage device 8 . Within the transceiver means 2, the base station 1 further comprises first means 2.1 for receiving information related to the load situation from another base station (not shown) in a communication network similar to the base station 1, for The information of the load situation of the other base station is provided to the second device 2.2 of other base station, is used for receiving from the other entity (for example, base station and / or mobile station; Third means 2.3 for measurement reports of information of , and fourth means 2.4 for...

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Abstract

Method of managing mobility in a communication network wherein a mobile station is handed over from a source base station to a target base station, comprising: providing the target base station with a first measurement report on radio link quality, comprising radio link quality measurements by the mobile station prior to said handover; providing the target base station with a second measurement report on radio link quality, said second measurement report comprising radio link quality measurements by the mobile station after said handover; in case of a proposed handover of the mobile station back to the source base station, comparing said first and second measurement reports; during a predefined time interval, allowing the proposed handover only in case of an overload situation at the target base station and / or in case of differences between said first and second measurement reports which are above a predefined threshold.

Description

technical field [0001] The invention relates to a method for managing mobility in a communication network in which a mobile station is handed over from a source base station to a target base station. [0002] The invention further relates to a base station and a mobile station for use in a communication network. Background technique [0003] A radio access network (RAN), such as a public land mobile network (PLMN), can typically be implemented in a centralized or decentralized structure. Using a centralized structure, a central node (eg a Radio Network Controller (RNC) in UMTS (Universal Mobile Telecommunications System)) controls all base stations or at least a group of base stations in the communication network. The central node provides functions such as radio resource management, transmission power management, handover decision, etc. for all radio cells in the area it is in charge of in the communication system (eg, Radio Network Subsystem (RNS) in UMTS). [0004] In a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/38H04Q7/30H04Q7/32H04W36/22H04W36/30
CPCH04W36/30H04W36/22H04W36/302H04W36/0033H04W88/08H04W88/02
Inventor D·霍夫曼
Owner ALCATEL LUCENT SAS