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Mobiler cornmunications with unlicensed-radio access networks

A technology of access network and mobile terminal, applied in the field of mobile communication, can solve the problem that the base station controller cannot edit

Inactive Publication Date: 2007-02-21
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the base station controller may not be able to compile a list of all frequencies that may need to be measured within a cell, except for those cells adjacent to the public licensed mobile network
Furthermore, limitations of the update procedure in the General Packet Radio Service GPRS mean that, at least for the GPRS nodes SGSN, it must be possible to locate mobile stations at the cell level

Method used

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  • Mobiler cornmunications with unlicensed-radio access networks
  • Mobiler cornmunications with unlicensed-radio access networks

Examples

Experimental program
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Embodiment Construction

[0016] Figure 1 schematically illustrates parts of a conventional GSM network supporting the packet service, General Packet Radio Service GPRS. The network is basically divided into a core network part 20 and an access part 10 . The elements of the core network shown in the figure include a Mobile Switching Center or MSC 202 , an associated Home Location Register HLR 201 and a Visitor Location Register VLR 204 . Those skilled in the art know the functions and structures of these traditional voice switching GSM architecture elements and will not be further described in detail here. The core network also supports General Packet Radio Service (GPRS), for which purpose a Serving GPRS Support Node (SGSN) 203 is illustrated. Although not illustrated in the figures, those skilled in the art will appreciate that the core network portion may include access to other mobile and fixed line networks via one or more gateway nodes, such as ISDN and PSTN networks, packet and circuit switched...

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Abstract

An unlicensed-radio access network is proposed for communication with a mobile terminal and packet service nodes in a core network portion of a mobile telecommunications network. The access network comprises local base stations each defining a mini-cell and adapted to communicate with mobile terminals over an unlicensed-radio interface and an access network controller connected to the local base stations and to a packet service node in the core network portion. The mini-cells are also grouped into at least two packet service cells. The local base stations that generate these mini-cells are assigned a cell identifier comprising a first identifier portion that is common for all local base stations connected to the access network controller and a second identifier portion that is different for local base stations in different packet service cells but common for all local base stations in the same packet service cell.

Description

technical field [0001] The invention relates to mobile communications combining public mobile access networks and unlicensed access networks. The invention is particularly relevant to the use of packet services on licensed radio mobile networks using unlicensed radio access networks. Background technique [0002] In any mobile communication system, such as a GSM network, an active call between a mobile station and a base station needs to be handed over to a different base station as the mobile station moves between different coverage areas or cells. Depending on how each cell is defined, handover may require passing only through a different base transceiver station BTS, through a different base station controller BSC or through a different mobile services switching center MSC - or when the network supports General Packet Radio Service (GPRS), Active calls are re-routed through a different GPRS support node SGSN. Handover may also be required when capacity problems are enco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/22H04L12/28H04W16/32H04W36/04H04W60/00
CPCH04W16/32H04W36/04H04W60/00
Inventor J·T·维克贝里T·尼兰德
Owner TELEFON AB LM ERICSSON (PUBL)
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