Mobile communication system being able to execute handover and relocation involving plural RNCs

A mobile communication system and relocation technology, applied in the field of mobile communication systems, can solve problems such as degradation and signal transmission delay quality, and achieve the effects of preventing quality degradation, avoiding service quality degradation, and preventing connection interruption.

Inactive Publication Date: 2009-04-08
NEC CORP
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Despite the transition of the RAN to an IP network, the diversity handover between multiple RNCs is still performed via the lur interface as in conventional handover methods, and involves not only signaling via more than one node, but also signaling that does not via an optimal route, This may cause delay and quality degradation of signal transmission

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Mobile communication system being able to execute handover and relocation involving plural RNCs
  • Mobile communication system being able to execute handover and relocation involving plural RNCs
  • Mobile communication system being able to execute handover and relocation involving plural RNCs

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0033] figure 2 The block diagram of illustrates the structure of the mobile communication system according to the first embodiment of the present invention. in figure 2 In, and figure 1 The same constituent elements shown in the figures have the same reference numerals, so their explanation is omitted.

[0034] reference figure 2 The mobile communication system of this embodiment includes a mobile station (UE) 101, a radio base station (Node B) 201-204, a radio network controller (RNC) 301, 302, and a core network (CN) 401.

[0035] This embodiment provides a method of handover and relocation, which is used when the RAN is transformed into an IP network, so that the RNC and the radio base station (Node B) are in a complete group relationship (the RNC and the radio base station (Node B) are composed Complete group).

[0036] Such as figure 2 As shown, in the mobile communication system of this embodiment, because the RAN (radio access network) connecting the RNC and the radi...

no. 2 example

[0061] An explanation about the mobile communication system according to the second embodiment of the present invention is given below. The mobile communication system of the first embodiment described above considers a situation in which as the mobile station moves, a handover operation is performed to switch radio base stations to establish a radio connection, while this embodiment considers a situation where a relocation algorithm is used when maintaining RNC.

[0062] Picture 9 The structure of the mobile communication system of this embodiment is shown in the figure. The mobile communication system of this embodiment is configured such that in addition to figure 2 In addition to the mobile communication system of the first embodiment shown in, an OAM (operation and maintenance) device 501 is also provided.

[0063] In this embodiment, the RNC 301 relocates the management of the call currently accepted by the RNC 301 to the peripheral RNC in accordance with the instruction ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The purpose of this invention is to perform handover across an RNC (radio network controller) without using an Iur interface in a mobile communication system in which an RAN (radio access network) is made to be an IP (internet protocol). When receiving power from a radio base station 203 subordinate to an RNC 302, which is measured by moving a mobile 101, is increased to cause its difference with receiving power of a radio base station 202 to exceed a certain threshold for a fixed period of time, an RNC 301 requests base station information of the radio base station 203 from the RNC 302 managing the radio base station 203 to obtain the base station information. The RNC 301 that has received the base station information from the RNC 302 directly controls the radio base station 203 by using the received base station information and performs handover from a cell of the radio base station 202 of the mobile 101 to a cell of the radio base station 203.

Description

Technical field [0001] The present invention relates to a mobile communication system having at least one mobile station (UE, user equipment), multiple radio base stations (Node B), multiple radio network controllers (RNC) adapted to manage multiple radio base stations (Node B), Specifically, the present invention relates to a control handover method for switching a radio base station that establishes a radio connection with the mobile station as the mobile station moves. Background technique [0002] Recently, mobile communication systems represented by portable telephone systems have been widely used. A mobile communication system generally consists of at least one mobile station, a plurality of radio base stations, a radio network controller adapted to control the plurality of radio base stations, and a core network (CN) connected to the radio network controller via a wired connection. [0003] In this mobile communication system, each radio network controller has a predetermi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/12
CPCH04W36/12H04W36/0055H04W36/10
Inventor 大杉伸也
Owner NEC CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap