Siemens Aktiengesellschaft

Ernst Langmantel

Wilhelm Mueller

Helmut Stiglbrunner

Marku Korpi

The multi-cell radio system is used in a communication system with at least one exchange (PBX) that has periphery assemblies (SLMC) and/or external radio exchange units (RE 1, RE 2) for the connection of base stations (B). Each mobile terminal equipment (ME) is allocated to exactly one port of a periphery assembly and/or radio exchange unit on the basis of an identification information specific to the terminal equipment. Radio connecting paths to or, respectively, from mobile terminal equipment (ME) can be produced such that, regardless of the location of the terminal equipment, they always ensue with an auxiliary ('extension') connection via the port of the periphery assembly and/or radio exchange unit allocated to it. The periphery assemblies (SLMC) and/or radio exchange units (RE) are configured to package the signaling messages from and to the terminal equipment in user-to-user information of a digital connection.

Multi-cell radio system with PBX periphery assemblies

A method for the implementation of a connection handover initiated by a cordless terminal equipment in Detect systems with modified standard: After the signaling of the call setup request signal 'Connection Hand Over Request', the mobile part also immediately transmits the user data in the newly captured channel. After reception of the 'Connection HO Request' forwarded by the newly selected base station, reception in the switching node can therefore be immediately switched thereto (without a gap in the user data transmission). In the transmission direction, the switching equipment can transmit in parallel via both base stations until, for example, an acknowledgment is received from the new base station with respect to the error-free signal output of 'Bearer Confirm', or until the mobile part clears down the previous connection.

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Vienna, Austria

Ernst Langmantel