DE10158080A1 - Managing radio communications system involves taking into account central radio resource management information for managing operation and maintenance - Google Patents

Abstract

The method involves taking into account central radio resource management information for managing operation and maintenance. The system is expanded, e.g. with an interface for at least one common radio resource management server with data exchange towards an operation and maintenance system and automation of some operation and maintenance aspects.

Description

• - RSS (engl. Radio Sub System), das funktechnische Teilsystem,
• - SSS (engl. Switching Sub System), das vermittlungstechnische Teilsystem, und
• - OMS (engl. Operation and Maintenance System), das Betriebs- und Wartungs-Teilsystem.

Mobile radio systems such as GSM (Global System for Mobile Communications) or UMTS (Universal Mobile Telecommunications System) can be divided into three main subsystems:

• - RSS (Radio Sub System), the radio subsystem,
• - SSS (Switching Sub System), the switching subsystem, and
• - OMS (Operation and Maintenance System), the operating and maintenance subsystem.

• - Verwaltung und kommerzieller Betrieb bzgl. Teilnehmer, Endgeräte, Abrechnungen oder Statistik,
• - Sicherheitsmanagement,
• - Wartungsarbeiten, wie bspw. Software up-/downloads,
• - Netzkonfiguration, Netzbetrieb, Performance Management, wie Verkehrsmessung/-überwachung usw., wobei hauptsächlich das Zusammenspiel von RSS und OMS betroffen ist.

The OMS, which controls RSS and SSS, has the following tasks, among others:

• - Administration and commercial operation with regard to participants, end devices, billing or statistics,
• - security management,
• - Maintenance work, such as software up- / downloads,
• - Network configuration, network operation, performance management, such as traffic measurement / monitoring, etc., whereby the interaction of RSS and OMS is mainly affected.

In the 3GPP (worldwide standardization body for UMTS and GSM) is currently the subject of the "Improvement of RRM across RNS and RNS / BSS ", which is also covered by the Common radio resource management CRRM is known. See also the 3GPP standardization document TR 25.881 V0.3.1 (2001-10).

Radio Resource Management (RRM) describes the basic Signaling and control procedures of the Air interface of the mobile radio system, i.e. the allocation, assignment and Management of radio resources in the frequency / time / code / power range.

Coming in existing and especially in future systems the RRM by the fact that different Mobile radio systems such as GSM and UMTS from one or possibly also different network operators at different levels (There are hierarchical cell layers: macro, micro, pico je differentiated by degree of mobility) and u. U. on different Modes (e.g. FDD and TDD) operated together or overlapping should be of crucial importance.

While RRM currently only covers a sub-area Systems from a network operator and usually only one layer Restricted in a limited area, the CRRM is said to be an RRM between GSM and UMTS, but also an RRM between the Areas of overlapping RNS (Radio Network Subsystem) Allow within UMTS.

RRM is therefore decentralized according to the state of the art different units handled without it between gives these units an exchange of information. CRRM should the possibility of such an exchange of information offer services of different users under given Criteria, such as quality of service of Service QoS), costs, maximizing system capacity etc., optimally one cell, according to one system, one Layer or a fashion to assign.

Furthermore, the management of resources is currently not of the network, because here there are always radio resources are in the foreground. This consideration is especially for GERAN (GSM EDGE RAN) important because of a connection in GERAN quasi resource-neutral via either one of the two Core interfaces (so-called Iu mode or A / Gb mode).

The object of the invention is the structures described optimize the network structure and administration. This The object is achieved by the method according to claim 1.

• - eine Schnittstelle für den oder die CRRM-Server mit einem Datenaustausch in Richtung OMS,
• - eine Automatisierung von O&M-Teilaspekten durch adaptives Anpassen auf der Basis von CRRM-Resultaten, und
• - ein Zusammenführen von O&M-Aufgaben für GSM und UMTS unter einem gemeinsamen O&M (Common O&M).

According to the invention, it is proposed to include radio resource management information (RRM), such as measured values, statistics, collected status reports, information from one or more CRRM servers, etc., centrally in the O&M administration (Operation & Maintenance). This solution is supplemented by the following extensions according to the invention:

• an interface for the CRRM server or servers with a data exchange in the direction of the OMS,
• - automation of O&M sub-aspects by adaptive adaptation based on CRRM results, and
• - Merging O&M tasks for GSM and UMTS under a common O&M (Common O&M).

This RRM information is also advantageous Location information coupled. This location information can, for example a cell ID, a sector specification for a specific one Base station, or in the case of information from mobile stations too be a specific location. This can continue for example, a collection of statistics about places like this called dropped calls, d. H. broken connections, in be a cell involved in network planning and network optimization a coupling of location information can be included to certain events or error events, such as for example, the occurrence of increased retransmissions (English retransmission), or reaching a maximum Transmit power from mobile stations. By means of various Known methods can be the location of a mobile station can be approximately determined. Methods exist for this based on measurements of the mobile station and / or the base station support.

Even if you simply look at the UMTS system, the CRRM aspect according to the invention by the simultaneous Taking multiple RNS into account is an advantage since Looking at only one RNS the RRM information at the edge of the RNS are accordingly incomplete.

The network management can according to the invention by an evaluation of RRM information, for example, the so-called fault Management, d. H. fault detection and diagnosis for the network elements, facilitate. For example, B. heaped Handover error rates in a special cell for errors in the point out the associated base station. Furthermore, in the so called configuration or performance management for the Control of performance, d. H. Throughput, response times, etc. and utilization of hardware and software network components, Parameters adaptively adapted to requirements become. For example, handover thresholds for cells with a low traffic load with a corresponding overload be reduced in neighboring cells.

Another method according to the invention consists in cross-system management and control of the network load, the Delay between network elements and errors or failures etc. of the different interfaces (Iub, Iur, Iu, A / Gb, Iur-g) of the system. In the case of GERAN, the Consideration of the internal GERAN transcoder pool only in A / Gb mode, but not in Iu mode in Is claimed. This can be advantageous Avoid network bottlenecks or system failures use easier redundancies. The method according to the invention can be advantageous by adding a corresponding Realize information elements.

Claims (1)

Procedure for the administration of a radio communication system, where information from a central Radio resource management for operation and maintenance management be taken into account.