Subscriber connection net for the connection of subscriber stations to an exchange using a radio system
AssigneeSiemens Aktiengesellschaft
InventorsRobert Lechner, Volker Rogasch
Life of this patent
Estimating the term…
Abstract
The radio control unit (RDU) which is near to the switching office and which is connected via a transmission link (UT) to radio base stations (RBS) near the subscriber is divided into a plurality of switching office-side interfaces (LEIM) conceived as a downtime unit and subscriber-side interfaces (RBIM) which have multiple access to one another in various ways via a multiple bus system. The subscriber connection data are distributed over the databases of the interfaces (RBIM, LEIM). There is good insensitivity to failures with a low level of expenditure on hardware and development.
Claims2
A subscriber connection network for connecting subscriber stations to a telecommunications switching office, comprising:
- the network having a radio system for establishing connections, an air interface of the system being between fixed subscriber connection units for subscriber terminals and/or mobile terminals and radio base stations, each of the radio base units being configured to serve a plurality of subscriber terminals and connected, via a transmission link, to radio control units which are near a switching office, a subscriber terminal being connectable to the switching office via at least two of the radio base stations and being changeable to another radio base station without interruption during an existing connection;
- each of the radio control units comprising;
- a) on a switching-office-side, at least one interface unit, which is a downtime unit, for connecting a connection line which leads to the switching office and whose database contains subscriber data;
- b) on a subscriber side, at least two interface units for connecting a transmission link, which connects to at least one base station and whose database contains data of a respective radio base station;
- c) an interface unit for connecting a system for operational and maintenance tasks;
- and
- d) a multiple bus system having at least two individual bus systems for connecting the interface units in accordance with features a) to c), interface units in accordance with feature b) having access to at least one of these individual bus systems, interface units in accordance with feature a) having access to at least two of these individual bus systems and an interface unit in accordance with feature c) having access to all of the individual bus systems,
- wherein, due to spatial arrangement of the radio base stations, at least two radio bus stations which are connected to a radio control unit via various transmission links are reached from one subscriber station.
Dependencies are inferred from the claim text.