WO2002039545A1 - Method and apparatus for testing with simulated moving mobile stations - Google Patents
Method and apparatus for testing with simulated moving mobile stations Download PDFInfo
- Publication number
- WO2002039545A1 WO2002039545A1 PCT/SE2001/002448 SE0102448W WO0239545A1 WO 2002039545 A1 WO2002039545 A1 WO 2002039545A1 SE 0102448 W SE0102448 W SE 0102448W WO 0239545 A1 WO0239545 A1 WO 0239545A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- antenna
- radio
- predetermined
- control unit
- antenna elements
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/24—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0602—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using antenna switching
- H04B7/0604—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using antenna switching with predefined switching scheme
Definitions
- a straight line distribution of the plurality of antenna elements or antenna group 203 is shown in Fig. 2, other distribution patterns are possible, such as a circle as shown in Fig. 3a, or an arc as shown in Fig. 3b. Of course, further variations are possible within the scope of the present invention.
- FIG. 4a An exemplary configuration for controlling a plurality of antenna groups to create Rayleigh fading in a test system is illustrated in the block diagram of Fig. 4a.
- three base stations 41 are shown, each being selectively connected by an antenna switch 43 to an antenna element in a separate antenna group 42 for radio communication.
- Each antenna switch 43 is controlled by a local control unit 44 and the three local control units 44 are further controlled by a common central control unit 45. It is to be understood that any number of base stations with associated antenna groups may be used for different tests.
- Each local control unit 44 receives control signals including operational instructions from the central control unit 45 and the local control unit 44 controls the antenna switch 43 to switch the antenna element connection accordingly.
- the control signals received from the central control unit 45 may include a switching rate, a clock pulse and a switching sequence, i.e., in which order the antenna elements are to be connected.
- the central control unit 45 is connected to each local control unit 44 by means of a separate connection line 46.
- the connections can be accomplished with a so-called Daisy chain, as illustrated in fig 4b, wherein the central control unit 45 is connected to a first local control unit 44.1 , which in turn is connected to a second local control unit 44.2 and so forth.
- the control signals transmitted from the central control unit 45 then include a local control unit address and control signals are received in a serial manner by the local control units 44 but action is only taken by the addressed local control unit.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01982995A EP1332534A1 (en) | 2000-11-08 | 2001-11-06 | Method and apparatus for testing with simulated moving mobile stations |
AU2002214451A AU2002214451A1 (en) | 2000-11-08 | 2001-11-06 | Method and apparatus for testing with simulated moving mobile stations |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US70806600A | 2000-11-08 | 2000-11-08 | |
US09/708,066 | 2000-11-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002039545A1 true WO2002039545A1 (en) | 2002-05-16 |
Family
ID=24844252
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE2001/002448 WO2002039545A1 (en) | 2000-11-08 | 2001-11-06 | Method and apparatus for testing with simulated moving mobile stations |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1332534A1 (en) |
AU (1) | AU2002214451A1 (en) |
WO (1) | WO2002039545A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100382628C (en) * | 2004-12-22 | 2008-04-16 | 中兴通讯股份有限公司 | Equipment for testing switch between base stations for mobile terminals |
WO2008045866A2 (en) * | 2006-10-12 | 2008-04-17 | Qualcomm Incorporated | Methods and apparatus for network re-creation in controlled environments |
US8912963B2 (en) | 2010-10-20 | 2014-12-16 | Apple Inc. | System for testing multi-antenna devices using bidirectional faded channels |
CN115118356A (en) * | 2022-06-17 | 2022-09-27 | 国营芜湖机械厂 | Detection equipment and detection method for airborne station performance |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4286267A (en) * | 1978-03-31 | 1981-08-25 | Siemens Aktiengesellschaft | Directional antenna system with electronically controllable sweep of the beam direction |
US5794128A (en) * | 1995-09-20 | 1998-08-11 | The United States Of America As Represented By The Secretary Of The Army | Apparatus and processes for realistic simulation of wireless information transport systems |
US6025799A (en) * | 1998-03-06 | 2000-02-15 | Mark Iv Industries Limited | Short range position locating system for transponder |
US6026132A (en) * | 1997-09-29 | 2000-02-15 | Lucent Technologies, Inc. | Method and apparatus for mitigating the effects of rayleigh fading at low vehicle speeds |
WO2000031895A1 (en) * | 1998-11-19 | 2000-06-02 | Telefonaktiebolaget Lm Ericsson (Publ) | Air interface based wireless telecommunication test system |
-
2001
- 2001-11-06 EP EP01982995A patent/EP1332534A1/en not_active Withdrawn
- 2001-11-06 AU AU2002214451A patent/AU2002214451A1/en not_active Abandoned
- 2001-11-06 WO PCT/SE2001/002448 patent/WO2002039545A1/en not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4286267A (en) * | 1978-03-31 | 1981-08-25 | Siemens Aktiengesellschaft | Directional antenna system with electronically controllable sweep of the beam direction |
US5794128A (en) * | 1995-09-20 | 1998-08-11 | The United States Of America As Represented By The Secretary Of The Army | Apparatus and processes for realistic simulation of wireless information transport systems |
US6026132A (en) * | 1997-09-29 | 2000-02-15 | Lucent Technologies, Inc. | Method and apparatus for mitigating the effects of rayleigh fading at low vehicle speeds |
US6025799A (en) * | 1998-03-06 | 2000-02-15 | Mark Iv Industries Limited | Short range position locating system for transponder |
WO2000031895A1 (en) * | 1998-11-19 | 2000-06-02 | Telefonaktiebolaget Lm Ericsson (Publ) | Air interface based wireless telecommunication test system |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100382628C (en) * | 2004-12-22 | 2008-04-16 | 中兴通讯股份有限公司 | Equipment for testing switch between base stations for mobile terminals |
WO2008045866A2 (en) * | 2006-10-12 | 2008-04-17 | Qualcomm Incorporated | Methods and apparatus for network re-creation in controlled environments |
WO2008045866A3 (en) * | 2006-10-12 | 2008-10-09 | Qualcomm Inc | Methods and apparatus for network re-creation in controlled environments |
US7840382B2 (en) | 2006-10-12 | 2010-11-23 | Qualcomm Incorporated | Methods and apparatus for network re-creation in controlled environments |
US8912963B2 (en) | 2010-10-20 | 2014-12-16 | Apple Inc. | System for testing multi-antenna devices using bidirectional faded channels |
CN115118356A (en) * | 2022-06-17 | 2022-09-27 | 国营芜湖机械厂 | Detection equipment and detection method for airborne station performance |
Also Published As
Publication number | Publication date |
---|---|
AU2002214451A1 (en) | 2002-05-21 |
EP1332534A1 (en) | 2003-08-06 |
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