EP0759258A1 - Mobilfunkübertragungssystem mit integrierter messeinrichtung zum ausmessen des funkversorgungsbereichs - Google Patents
Mobilfunkübertragungssystem mit integrierter messeinrichtung zum ausmessen des funkversorgungsbereichsInfo
- Publication number
- EP0759258A1 EP0759258A1 EP96901479A EP96901479A EP0759258A1 EP 0759258 A1 EP0759258 A1 EP 0759258A1 EP 96901479 A EP96901479 A EP 96901479A EP 96901479 A EP96901479 A EP 96901479A EP 0759258 A1 EP0759258 A1 EP 0759258A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- base station
- transmission system
- mobile
- radio transmission
- mobile radio
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/18—Network planning tools
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/16—WPBX [Wireless Private Branch Exchange]
Definitions
- Mobile radio transmission system with integrated measuring device for measuring the radio coverage area.
- the invention relates to a mobile radio transmission system, in particular a transmission system formed from cordless telephones for a private branch exchange, with at least one base station for connection to a data interface and with at least one mobile station.
- the invention further relates to a base station, a mobile station and one
- Such a mobile radio transmission system is used, for example, in so-called "in-house” radio networks.
- several base stations can be connected to a private branch exchange, instead of or together with conventional telephones.
- the base stations allow connection to a variety of cordless phones within the radio coverage area of the base stations.
- the range of such base stations is usually around 50 to 300 meters, depending on the radio environment.
- Such a mobile radio transmission system is known from EP 0 565 150 AI.
- the invention is based on the object of specifying a mobile radio transmission system of the type mentioned at the outset which enables the mobile radio transmission system to be measured in a simple manner.
- the base station has detection means which are provided for detecting whether the data interface is connected to a data line, and that the base station has transmission means which, in the event of detection that the Data interface is not connected to a data line, are provided for sending a test signal to the mobile station.
- the invention is based on the knowledge that when planning such a mobile radio transmission system, the building complex to be supplied or that supplying company premises is often not yet equipped with the necessary infrastructure for connecting the base station or the base stations to a switching facility, since, for example, the building is only completed in the shell. Regular operation of a switching system with cordless telephones is therefore not possible in many cases for test purposes.
- An effective measurement of the radio coverage area is now made possible by the fact that the base station or the base stations are only connected to an internal or external power supply. The base station then recognizes that there is no regular operation at a switching device and goes into a test mode by sending out a test signal.
- the radio coverage area to be illuminated can now be recognized and optimized by placing further base stations in a targeted manner until a complete coverage of the radio coverage area to be covered is ensured.
- the basis for planning or supplementing such a mobile radio system can be inexpensive standard components, the base station only requiring the detection means and the mobile station the means for recognizing the test signal transmitted by the base station. This enables a safe, simple and inexpensive dimensioning of the mobile radio transmission system.
- the use of standard components also makes it possible for the on-site service specialist who is responsible both for the service of existing mobile radio transmission systems and for the planning of new ones
- a measuring case designed in this way can likewise consist of inexpensive standard components which are essentially supplemented by the detection means of the base station.
- a simple way to control the data cut parts can be done in that the data interface of the base station is provided for connection to a power supply device.
- the base stations of the mobile radio transmission system are therefore not connected to a data interface, such as the so-called S 0 interface of an ISDN switching device, as in regular operation, but the data interface of the base station is fed, for example, via a plug-in power supply unit, which supplies a DC voltage as phantom power .
- the base station can recognize that there is no "correct" data supply and then switch to test mode.
- a simple and effective "experience" of the radio coverage area of the base stations is made possible by the fact that the mobile stations have means for recognizing the test signal and that the test signal can be recognized by the mobile station as an acoustic signal.
- a more precise detection of the edge areas of the radio coverage area is made possible by the fact that the mobile stations have means which make it possible to vary the test signal depending on predefinable indicators, in particular the field strength.
- FIG. 1 shows a mobile radio transmission system formed from cordless telephones
- FIG. 2 shows an exemplary embodiment of a base station with an associated one
- FIG. 3 shows an embodiment of a service case with a base station, a mobile station and a power supply device
- FIG. 4 shows a flow chart of a test mode for measuring the radio coverage area or the radio coverage areas of a mobile radio transmission system.
- the mobile radio transmission system is intended, for example, to supply a building complex with radio technology, with the mobile radio transmission system approximately covering a radio coverage area such as can be covered by the sum of the individual radio coverage areas ZI .. Z7.
- the mobile radio transmission system to be planned as shown in FIG. 1, has base stations B1 .. B7 and mobile stations M1, M2.
- the base stations Bl .. B7 each supply radio cells ZI .. Z7.
- the base stations Bl .. B7 and the mobile stations Ml, M2 are provided for connection to a switching device, not shown in the figure.
- the base stations Bl .. B7 are connected via a data interface S 0 .
- the data interfaces S 0 are connected to a power supply device N, which is provided via a plug connection S for connection to a supply voltage.
- the radio coverage areas ZI .. Z5 of the base stations Bl .. B5 are shown in the embodiment shown in Figure 1 for simplicity as circles. In reality, this generally does not correspond to the actual contours and outlines of the radio coverage areas in buildings.
- a more realistic representation of the radio coverage areas is illustrated in the exemplary embodiment shown in FIG. 1 by the representation of the radio coverage areas Z6, Z7 of the base stations B6 and B7.
- FIG. 1 does not show a mobile radio transmission system in operation, but is only intended to show with the aid of the selected representation that in a planning phase when planning a mobile radio transmission system, which is provided, for example, to supply a building complex, one through the radio coverage areas ZI .. Z7 should be reached in approximately covered radio range. It is also assumed that the building complex to be supplied is not yet provided with the line infrastructure required to connect the base stations to a switching facility, as is often the case in the case of unfinished buildings. The following is intended to be based on that shown in FIG. 1
- the planning specialist will, for example, first position the base station Bl at the location of the radio coverage areas ZI, Z2 and the base station Bl using the data interface S with the aid of a measuring case, in which a base station Bl, a mobile station Ml and a power supply device N can be contained 0 connect to the power supply device N.
- the power supply device S can be supplied with an external voltage source via the plug connection S. In the event that an external voltage source is not available, the power supply of the power supply device N can be ensured either via a generator or via a battery supply.
- the measuring arrangement prepared in this way consisting of power supply device N, base station B1 and mobile station Ml, now works as follows:
- the base station has detection means which recognize that the data interface S 0 is not connected to a data line of a switching device, but only to the power supply device N, which, for example, supplies a DC voltage as phantom power.
- the base station B1 then goes into a test mode which leads to the transmission of a test signal.
- the planning specialist working on site can now move away from the base station B1 and, for example, the cell expansion of the radio coverage area ZI based on the noise Experienced.
- a corresponding procedure is also used for the placement of the base stations B2 .. B7 until an optimal supply of the radio area to be supplied is guaranteed.
- connection line of the base station B7 of the radio coverage area Z7 shown in FIG. 1 is only drawn in with a broken line, a conventional telephone set T also being drawn in the area of the radio coverage area Z7.
- This is to indicate that the procedure described for measuring a radio coverage area can also be used when expanding and supplementing existing mobile radio transmission devices if, for example, the lines required for connecting the base station B7 to the switching device are not yet available or the optimal location of the base station B7 should only be determined. In this case too, an existing mobile radio transmission system can be optimized quickly and securely.
- the plug-in power supply unit which is required anyway for operating the base station can be used.
- Another advantage of the measuring method described is that complex measuring devices are not required and that the measurement of the mobile radio transmission system also takes place in the later actual position of use of the handset, whereby the directional characteristic of the handset antenna is always included in the measurement result, which in conventional measuring devices leads to a Falsification of the measurement result.
- FIG. 2 shows a further exemplary embodiment of a mobile radio transmission system which can be used for measuring a cellular radio network.
- the mobile radio transmission system for measuring a radio area to be planned consists of a base station B1 with an associated mobile part Ml, which together form a cordless telephone.
- the base station B1 can be connected to an external voltage source via a power supply device, for example a plug-in power supply N and a plug S.
- the power supply unit N has a battery B, which also enables the base station B1 to be supplied with battery.
- the operation of the arrangement shown in Fig. 2 was already in
- a mobile radio transmission system shown in FIG. 2 which can be used to measure a radio coverage area
- the hardware of the base station does not have to be modified; the base station is only replaced with a modified one Power supply unit N fed.
- the software of the base station is changed in such a way that the base station B1 contains detection means which, upon detection that the data interface S 0 is not connected to a data line of a switching device, but only to a direct voltage, go into an installation, ie test mode. At the base station, for example, this is indicated by a flashing signal from a light-emitting diode.
- the software of the base station B1 is modified in such a way that a special system identifier is reserved which serves for the base station to accept calls in this test mode from a mobile part M1 with this system identifier.
- This system identifier can now be programmed on the mobile part M1 and a connection to the base station B1 can thereby be established.
- a permanent audible tone can then be activated as a test signal T in the base station B1, for example by means of dialing digits, which allows a subjective assessment of the transmission quality.
- the described mobile radio transmission system i.e. A cordless telephone B1, M1 equipped in this way also enables a regular user to test, as an additional feature, how the current radio coverage area of his base station B1 is designed. With the help of the test or test mode described, he can precisely determine his or her radio coverage area (s) and, if necessary, optimize the location of the base station in accordance with the measurement results found.
- Fig. 3 shows an embodiment of a measuring case M.
- Service case is provided for the service of a private branch exchange with cordless telephones and has a base station B1, a mobile station Ml and a plug-in power supply unit N.
- inexpensive standard components are contained in the measuring case M
- the hardware corresponds to previously known service cases in terms of hardware
- only the base station has corresponding detection means which are provided for the detection of whether the data interface of the base station is connected to a data line.
- a measuring case equipped in this way as already described in connection with FIGS. 1 and 2, enables a safe, simple and inexpensive dimensioning of a switching device with cordless telephones. It is possible for the service specialist to use only measuring equipment in the form of the measuring case M for planning new mobile radio transmission systems and for servicing existing systems.
- FIG. 4 shows a flowchart of a test mode of a base station B1, as has already been explained in connection with FIGS. 1 and 2.
- a block 1 first of all an activation of the test mode in the base station B1, which is initiated, for example, by the detection means of the base station B1 recognizing that not a data line of a switching device, but, for example, a power supply device is connected to the data interface of the base station.
- Such a query takes place in block 2.
- the event that there is no phantom power the
- Base station in normal operation via (block 5). If phantom power is detected, a connection is established in block 3 between the base station and the handset by sending a test signal, the connection establishment can be activated by the base station and / or by the mobile station.
- the next step in block 4 of the test mode is a field strength measurement in the handset Ml, the field strength measurement either being recognizable on the basis of a noise to be perceived in the handset or a measuring device can be connected to the high-frequency module in the handset that is either integrated in the handset or externally enables the display of the current field strength.
- the test mode can be ended again in block 6.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19507866 | 1995-03-08 | ||
DE19507866A DE19507866C2 (de) | 1995-03-08 | 1995-03-08 | Mobilfunkübertragungssystem mit integrierter Meßeinrichtung zum Ausmessen des Funkversorgungsbereichs |
PCT/IB1996/000135 WO1996027995A1 (de) | 1995-03-08 | 1996-02-21 | Mobilfunkübertragungssystem mit integrierter messeinrichtung zum ausmessen des funkversorgungsbereichs |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0759258A1 true EP0759258A1 (de) | 1997-02-26 |
Family
ID=7755812
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96901479A Withdrawn EP0759258A1 (de) | 1995-03-08 | 1996-02-21 | Mobilfunkübertragungssystem mit integrierter messeinrichtung zum ausmessen des funkversorgungsbereichs |
Country Status (5)
Country | Link |
---|---|
US (1) | US5924029A (de) |
EP (1) | EP0759258A1 (de) |
JP (1) | JPH10500552A (de) |
DE (1) | DE19507866C2 (de) |
WO (1) | WO1996027995A1 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100202502B1 (ko) * | 1996-12-30 | 1999-06-15 | 정장호 | 이동통신시스템 기지국의 시험회로 |
US6148194A (en) * | 1997-12-10 | 2000-11-14 | Nortel Networks Corporation | Method for determining cell boundary during base station deployment |
US6122505A (en) * | 1997-12-23 | 2000-09-19 | Telefonaktiebolaget Lm Ericsson | Communication system with base stations having test capabilities |
US6603966B1 (en) * | 1997-12-23 | 2003-08-05 | At&T Wireless Services, Inc. | Method and system for optimizing performance of a mobile communication system |
FI991593A (fi) | 1999-07-12 | 2001-01-13 | Nokia Mobile Phones Ltd | Menetelmä ja järjestely käyttötarpeen palvelupohjaiseksi indikoimiseks i ja ohjaamiseksi |
JP2001044251A (ja) * | 1999-07-26 | 2001-02-16 | Nec Corp | 半導体装置の製造方法および半導体装置 |
US7280803B2 (en) * | 1999-12-29 | 2007-10-09 | Cingular Wireless Ii, Llc | Monitoring network performance using individual cell phone location and performance information |
US6813477B1 (en) * | 2001-01-23 | 2004-11-02 | Matsushita Mobile Communication Development Corporation | Spurious-response interference tester |
EP1639732A2 (de) * | 2003-06-30 | 2006-03-29 | Nokia Corporation | Vorrichtung und assoziiertes verfahren zum prüfen eines mobilen endgeräts in testbedingungen, die eine betriebsumgebung emulieren |
DE102004010182B3 (de) * | 2004-03-02 | 2005-07-21 | Siemens Ag | Verfahren und Anordnung zum Erfassen einer Funkabdeckung |
US7596372B2 (en) * | 2004-06-14 | 2009-09-29 | Warren Phillip D | Apparatuses and methods for measuring signal strengths of wireless networks |
FR2876862B1 (fr) * | 2004-10-20 | 2007-04-27 | Cit Alcatel | Serveur de gestion pour la determination de cartographies de qualite de service percue au sein d'un reseau de communication mobile |
US7668530B2 (en) | 2005-04-01 | 2010-02-23 | Adaptix, Inc. | Systems and methods for coordinating the coverage and capacity of a wireless base station |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58195393A (ja) * | 1982-05-10 | 1983-11-14 | Nec Corp | ボタン電話装置 |
JPS58213597A (ja) * | 1982-06-05 | 1983-12-12 | Nitsuko Ltd | ボタン電話装置 |
GB2166325B (en) * | 1984-10-26 | 1988-06-02 | Philips Electronic Associated | A method of carrying-out a radio propagation survey |
JPS6481594A (en) * | 1987-09-24 | 1989-03-27 | Toshiba Corp | Key telephone set |
US4977399A (en) * | 1988-08-09 | 1990-12-11 | At&E Corporation | Mobile radio paging test system |
US5471649A (en) * | 1990-03-31 | 1995-11-28 | Motorola, Inc. | Base station transceiver diagnostic equipment |
JPH04185094A (ja) * | 1990-11-20 | 1992-07-01 | Toshiba Corp | ボタン電話システム |
US5265150A (en) * | 1991-01-30 | 1993-11-23 | At&T Bell Laboratories | Automatically configuring wireless PBX system |
US5428821A (en) * | 1991-06-28 | 1995-06-27 | Motorola, Inc. | Base site with remote calibration capability |
US5381444A (en) * | 1991-10-31 | 1995-01-10 | Fujitsu Limited | Radio environment measuring system |
DE4205239A1 (de) * | 1992-02-21 | 1993-08-26 | Sel Alcatel Ag | Mobiles testgeraet fuer ein mobilfunk-system |
DE4207748A1 (de) * | 1992-03-11 | 1993-09-16 | Philips Patentverwaltung | Funknetz aus schnurlosen telefonen |
US5521958A (en) * | 1994-04-29 | 1996-05-28 | Harris Corporation | Telecommunications test system including a test and trouble shooting expert system |
-
1995
- 1995-03-08 DE DE19507866A patent/DE19507866C2/de not_active Expired - Fee Related
-
1996
- 1996-02-21 JP JP8526730A patent/JPH10500552A/ja not_active Abandoned
- 1996-02-21 US US08/737,178 patent/US5924029A/en not_active Expired - Fee Related
- 1996-02-21 EP EP96901479A patent/EP0759258A1/de not_active Withdrawn
- 1996-02-21 WO PCT/IB1996/000135 patent/WO1996027995A1/de not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO9627995A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE19507866C2 (de) | 1997-08-07 |
JPH10500552A (ja) | 1998-01-13 |
WO1996027995A1 (de) | 1996-09-12 |
DE19507866A1 (de) | 1996-09-12 |
US5924029A (en) | 1999-07-13 |
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Owner name: PHILIPS CORPORATE INTELLECTUAL PROPERTY GMBH Owner name: KONINKLIJKE PHILIPS ELECTRONICS N.V. |
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