EP3509926A1 - Mobilfunkeinrichtung - Google Patents
MobilfunkeinrichtungInfo
- Publication number
- EP3509926A1 EP3509926A1 EP17783815.8A EP17783815A EP3509926A1 EP 3509926 A1 EP3509926 A1 EP 3509926A1 EP 17783815 A EP17783815 A EP 17783815A EP 3509926 A1 EP3509926 A1 EP 3509926A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- transceiver
- receiving
- antenna
- mobile radio
- radio device
- 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.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 49
- 230000003750 conditioning effect Effects 0.000 claims description 16
- 238000011144 upstream manufacturing Methods 0.000 claims description 8
- 210000003608 fece Anatomy 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or train for signalling purposes
- B61L15/0018—Communication with or on the vehicle or train
- B61L15/0027—Radio-based, e.g. using GSM-R
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or train for signalling purposes
- B61L15/0063—Multiple on-board control systems, e.g. "2 out of 3"-systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
- B61L27/70—Details of trackside communication
Definitions
- the invention relates to a mobile radio device for a vehicle, in particular a rail vehicle, with at least one first and one second transceiver, each having a transmission module and a reception module.
- Rail vehicles Euro ⁇ pean Train Control System
- Mobilfunksystem are equipped with a standardized ETCS and operated in accordance with ETCS Level 2 or 3, using it to communicate with the competent halnseiti- gen headquarters and control center (fachvaryinglich RBC - Radio block Center) the digital mobile network GSM-R (R - Railway).
- the mobile radio devices - also referred to as OBUs (OBUs - on board unit) - are usually each equipped with three GSM-R transceivers (transmitting and receiving units).
- Two of the transceiver are used to allow during a transition from the respectively currently responsible centralized track control station to the next responsible centralized track control two parallel ⁇ mobile radio links, namely both to previous radio block center and a centralized track control station for subsequent.
- a third transceiver allows voice communication between the driver and the dispatcher.
- the invention is based on the object, to admit a Mobilfunkein- device for a vehicle, in particular rail vehicle at ⁇ which enables a particularly secure and reliable transmission and reception operation.
- the mobile radio device has one or more transmitting antennas for transmitting and one or more receiving antennas for receiving, wherein the receiving antenna or receiving antennas, which are in communication with the receiving modules of the first and second transceivers, are transmitted by the transmitting modules of the first and second transceivers second transceivers are separated, and wherein the transmission antenna or transmission antennas, which are in communication with the transmission modules of the first and second transceivers, are separated from the reception modules of the first and second transceivers.
- a significant advantage of the mobile radio device is the fact that the transmitting and Empfangspfa ⁇ de are each separated from each other in each of the transceivers, so that a feedback of own transmission signals in eige ⁇ ne reception paths is relatively low. Faults are thus avoided and it is a safe or reliable transmission and reception operation allows.
- a first transmission antenna which eventually is ver ⁇ prevented from ⁇ to the transmission module of the first transceiver and a second transmit antenna, which is arranged spaced from the first transmitting antenna and exclusively to the transmission module of the second Transceivers is connected.
- the mobile radio device preferably comprises at least one shared Empfangsan ⁇ antenna, hereinafter referred to as community receiving antenna, which communicates with both the receiving module of the first transceiver and with the receiving module of the second transceiver.
- community receiving antenna is preferably connected via an antenna connection line to a signal input of a signal conditioning unit, the output side with the receiving modules of the first and second transceiver is in communication.
- the signal conditioning unit preferably has an amplifier, in particular a linear amplifier.
- the amplifier is used for signal amplification, so that the occurring signal path attenuation - based on the strength of the receiving signal arriving at the receiving modules - can be reduced or even completely compensated.
- the amplifier is - seen in the signal flow direction of the community receiving antenna in the direction of the transceiver - preferably a filter, in particular a bandpass filter or band-stop filter upstream.
- a filter in particular a bandpass filter or band-stop filter upstream.
- Such a filter can interference signals outside the frequency range of the useful signal dämp ⁇ fen and prevent clipping of the downstream amplifier.
- the signal conditioning unit prefferably has a filter downstream of the amplifier, as seen in the signal flow direction, in particular a bandpass filter or a bandstop filter.
- a filter downstream of the amplifier as seen in the signal flow direction, in particular a bandpass filter or a bandstop filter.
- Such a subordinate filter can advantageously eliminate interference frequencies that are generated, for example, by non-linearities of the amplifier.
- the amplifier upstream of the filter and the amplifier downstream of the filter are preferably identical or at least in terms of the frequency band whose frequencies pass or block the two band passes equal.
- the intermediate line is preferably longer than the
- the transceiver own receive lines and the antenna connection line. It is particularly advantageous if the intermediate line at least 5 times, particularly preferably Minim ⁇ least 10 times, as long as the first and second
- transceiver own receive line and / or at least 5 times, more preferably at least 10 times, as long as the Antennenan gleichs ein is.
- the transmission module of the first transceiver is preferably finally called from ⁇ via a connecting cable, first below a connection cable, - ie in particular without intermediate ⁇ switched bandpass - attached Schlos ⁇ sen to the first transmitting antenna, so that the transmission signal of the first transceiver single ⁇ Lich of by the transmission characteristics first connection cable is affected.
- the transmission module of the second transceiver is connected exclusively via a second connection cable to the second transmission antenna - ie in particular without vitellhalte- bandpass - and the transmission signal of the second transceiver is only influenced by the transmission characteristics of the second connection cable ,
- the mobile device has a third transmitting antenna, which is connected via a third connecting cable with a transmission module of a third Transcei ⁇ vers, and the community receiving antenna to ⁇ additional with a receiving module of the third Transceivers communicates.
- the receiving module of the third transceiver is preferably via a third transceiver own or Transceiverindividually assigned line to a distributor ⁇ unit, in particular the above-mentioned distribution unit, on ⁇ closed.
- the intermediate pipe is preferably at least 5 times, particular ⁇ DERS preferably at least 10 times, as long as the third transceiver own line.
- the transmission module of the third transceiver is preferably exclusively connected to the third transmission antenna via a connection cable, referred to below as the third connection cable , so that the transmission signal of the third transceiver is only influenced by the transmission characteristics of the third connection cable.
- the distance between the third transmitting antenna and the first or second transmitting antenna is preferably at least 10 times as large as the distance between the first and second transmitting antennas.
- the distance between each of the transmitting antennas and the common receiving antenna is preferably at least 10 times the distance between the first and second transmitting antennas.
- the receiving module of the third transceiver is preferably switchable from a first operating mode to a second operating mode and vice versa, wherein the receiving module in the first operating mode is preferably connected to the distributor unit and thus to the common receiving antenna and receives received signals from the common receiving antenna and wherein the receiving module in the second operating mode preferred is connected to the third transmitting antenna and receiving signals from the third transmitting antenna.
- the invention also relates to a vehicle, in particular ⁇ special rail vehicle. According to the invention, it is provided that the vehicle is equipped with a mobile radio device as described above.
- FIG. 1 shows a first embodiment of an OF INVENTION ⁇ dung modern mobile radio device, which is received at a vehicle, especially rail vehicle may be, wherein the mobile device comprises according to figure 1, a single community reception ⁇ antenna, a second embodiment of an OF INVENTION ⁇ dung modern mobile radio device, wherein the Emp catch path has two community receiving antennas, a third embodiment of a erfin ⁇ tion contemporary mobile device in which a Emp pangsmodul one of the transceiver is switchable and is selectively connectable to a community receiving antenna for receiving received signals or with an individually assigned transmitting antenna for receiving received signals, a fourth exemplary embodiment of a dung oF INVENTION ⁇ modern mobile radio device, in which a signal conditioning unit with band-stop filter is provided instead of bandpass filters, and
- Figure 5 shows an embodiment of a rail vehicle, which is equipped with the mobile radio device according to Figure 3.
- FIG. 1 shows a mobile radio device 10 which is equipped with a first transceiver 100, a second transceiver 200 and a third transceiver 300.
- Each of the three transceivers 100, 200 and 300 has in each case a reception ⁇ module EM and a transmission module SM.
- the first transceiver 100 is connected via a transceiver-own or transceiver-individually assigned connection cable 110, referred to below as the first connection cable 110, to a first transmission antenna 120, which is exclusively connected to the transmission module SM of the first transceiver 100.
- the transmission module SM of the second transceiver 200 is in ent ⁇ speaking manner via a transceivereigenes or
- Transceiver individually associated second connecting cable 210 connected to a second transmitting antenna 220, which is ⁇ finally with the second transceiver 200 in combination.
- the transmission module SM of the third transceiver 300 is connected to a third transmission antenna 320 via a third transceiver-own or transceiver- individually assigned connection cable 310.
- the spacing of the three transmitter antennas 120, 220 and 320 may be re ⁇ tively small and for example less than 1 m Betra ⁇ gen.
- the receiving modules EM of the three transceivers 100, 200 and 300 are connected to a distribution unit 400 via a first transceiver own receiving line 150, a second transceiver own receiving line 250 and a third transceiver own receiving line 350.
- a signal input 401 of the distribution unit 400 communicates with a common receiving antenna 500 via an intermediate line 700.
- a signal conditioning unit 600 is connected between the distributor unit 400 and the common receiver antenna 500.
- a signal input 601 of the signal conditioning unit 600 is connected via an antenna connection line 510 to the common reception antenna 500.
- a signal output 602 of the signal conditioning unit 600 is connected via the intermediate line 700 to the signal input 401 of the distributor unit 400.
- the signal conditioning unit 600 has on the input side a bandpass filter 610, which is arranged upstream of an amplifier 620. Downstream of the amplifier 620 is a bandpass filter 630 which is connected to the signal output 602 of the signal conditioning unit 600.
- the band pass filter 610 upstream of the amplifier 620 is preferably dimensioned such that it allows only the frequency range of a received signal E to be received by the common receive antenna 500 to pass for the receive modules EM of the three
- Transceiver 100, 200 and 300 is relevant or user data ent ⁇ holds. If the mobile radio device 10 is a device which is intended for use in the rail vehicle sector and should accordingly operate, for example, according to the GSM-R standard, it is considered advantageous if the bandpass filter 610 exclusively uses the frequency band of the GSM-R channel. Pass range and frequencies of adjacent frequency bands, in particular the adjacent frequency band E-GSM, the best possible attenuates or blocks.
- the amplifier 620 is preferably a low-noise amplifier with high linearity.
- the function of the bandpass filter 630 arranged downstream of the amplifier 620 is to filter out any interference frequencies generated in the context of amplification by the amplifier 620, which can be caused by non-linearities of the amplifier, for example in the context of a frequency mixing, from the amplified received signal and output signals. side to output an amplified and filtered received signal Efv, which has the highest possible signal amplitude in the entire relevant Emp ⁇ catching frequency range by amplifying the amplifier 620 and is free of interference frequencies outside this receiving frequency range as possible.
- the community receiving antenna is as far as possible from the transmit antennas 120, 220 and 320 ent ⁇ removed 500 to an irradiation of transmission signals of the transmitting modules SM of the three transceivers 100, 200 and 300 in the Be ⁇ rich the Community receiving antenna 500 to avoid.
- the signal processing unit 600 and the distribution unit 400 it is advantageous angese ⁇ hen, when the signal processing unit 600 is arranged as close as possible to the community receiving antenna 500 and the distribution unit is as near as possible 400 in the area of three transceivers 100, 200 and 300th In other wor ⁇ th it is therefore considered to be advantageous if the length of the intermediate line 700 as long as possible and the length of the antenna terminal line 510 and the contrast is as short as possible the transceiver's receiving lines 150, 250 and 350th It is particularly advantageous, for example, if the antenna connection line 510 and the transceiver's own reception lines 150, 250 and 350 do not exceed a cable length of 1 m or at least not significantly; the intermediate line 700 serves to bridge the distance between the common reception antenna 500 or the signal processing unit 600 on the one hand and the three transceivers 100, 200 and 300 or the distributor unit 400 on the other hand.
- the mobile device 10 can be operated, for example, as follows: With the community receiving antenna 500 is a reception ⁇ signal E, which may be for example a GSM-R reception signal received.
- the received signal E is processed by the signal conditioning unit 600, in particular ⁇ filtered and amplified.
- the amplified and hardware filters shouldered Efv reception signal passes through the intermediate conduit 700 to the distribution unit 400, which divides the received signal ver ⁇ Efv to the receiving module EM of the three transceivers 100, 200, and 30th
- the receiving modules EM of the three transceivers 100, 200 and 300 can thus each evaluate the received signal Efv.
- the transmitter module SM of the three transceivers 100, 200 and 300 sen ⁇ their transmission signals respectively via the transceiver individually assigned to transmit antennas 120, 220 and 320 from where the relatively large distance from the receiving antenna Community
- FIG. 2 shows a further exemplary embodiment of a mobile radio device 10.
- there are two common receiving antennas 500 and 501 which are each coupled to the signal input 601 of the signal conditioning unit 600.
- it is possible to feed the received signal E with the largest possible signal ⁇ amplitude in the signal processing unit 600th Incidentally, the above statements in connection with the mobile radio device 10 according to Figure 1 apply accordingly.
- FIG. 3 shows a third embodiment of a mobile radio device 10.
- the receiving module EM of the third transceiver 300 is connected to both the common receiving antenna 500 and the third transmitting antenna 320.
- the receiving module EM of the third transceiver 300 is, in the embodiment according to Figure 3 internally switched over so that the Emp ⁇ grabber module EM to receive the received signal E may optionally use the third transmit antenna 320, the community receiving antenna 500, or alternatively. Switching the Empfangsbe ⁇ drive from the community receiving antenna 500 to the third transmission antenna 320, the third transceiver 300 in ⁇ make example, if there is a disturbance of the signal processing unit ⁇ 600 or the distribution unit 400 and consequently no received signal E from the community receiving antenna 500 is to be received or another frequency band is to be received, which is blocked by the signal processing unit ⁇ 600.
- the third transmitting antenna 320 has as large a distance as possible from both the first transmitting antenna 120 and the second transmitting antenna 220 and from the common receiving antenna 500. Such a large spacing is therefore advantageous ⁇ way in particular, to avoid interference from transmission signals of the first transmission antenna 120 and the second transmit antenna 220 in the receiving module EM of the third transceiver 300 when the reception module of the third transceiver 300 as a receiving transformants ⁇ ne Transmitter antenna 320 uses.
- FIG. 4 shows a fourth exemplary embodiment of a mobile radio device 10 according to the invention.
- the signal conditioning unit 600 has an upstream of the amplifier 620 Band-stop filter 611 and a band-stop filter 631 downstream of the amplifier 620.
- the two band-stop filters 611 and 631 are preferably dimensioned such that they suppress interference frequencies of known adjacent frequency bands. If the mobile radio device 10 is operated in the area of the GSM-R band, because it is to be used in the field of rail vehicle technology, then it is advantageous if, for example, the frequency band of the E-GSM mobile radio system by the two
- Band-stop filter 611 and 631 is suppressed.
- FIG. 5 shows an exemplary embodiment of a rail vehicle ⁇ 800, which is equipped with the mobile radio device 10 in accordance with FIG. 3 It can be seen that the third transmission antenna 320 has as large a distance as possible from the first transmission antenna 120 and the second transmission antenna 220 as well as from the common reception antenna 500. For the rest, reference is made to the statements in connection with FIG.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mobile Radio Communication Systems (AREA)
- Transceivers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016221758.5A DE102016221758A1 (de) | 2016-11-07 | 2016-11-07 | Mobilfunkeinrichtung |
PCT/EP2017/075464 WO2018082862A1 (de) | 2016-11-07 | 2017-10-06 | Mobilfunkeinrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3509926A1 true EP3509926A1 (de) | 2019-07-17 |
Family
ID=60083304
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17783815.8A Pending EP3509926A1 (de) | 2016-11-07 | 2017-10-06 | Mobilfunkeinrichtung |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3509926A1 (de) |
DE (1) | DE102016221758A1 (de) |
WO (1) | WO2018082862A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018222589A1 (de) * | 2018-12-20 | 2020-06-25 | Siemens Mobility GmbH | Antennenanordnung sowie Schienenfahrzeug mit Antennenanordnung, aufweisend mehrere Antennen |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6560443B1 (en) * | 1999-05-28 | 2003-05-06 | Nokia Corporation | Antenna sharing switching circuitry for multi-transceiver mobile terminal and method therefor |
US6826391B2 (en) * | 2002-03-15 | 2004-11-30 | Nokia Corporation | Transmission and reception antenna system for space diversity reception |
EP1376940B1 (de) * | 2002-06-20 | 2004-09-29 | Siemens Aktiengesellschaft | Verfahren zur Datenübertragung |
US8362853B2 (en) * | 2009-06-19 | 2013-01-29 | Qualcomm Incorporated | Tunable MEMS resonators |
JP5505178B2 (ja) * | 2009-11-02 | 2014-05-28 | 日本電気株式会社 | 無線通信装置、無線通信装置の受信レベル判別方法及びプログラム |
US8805300B2 (en) * | 2012-03-19 | 2014-08-12 | Intel Mobile Communications GmbH | Agile and adaptive wideband MIMO antenna isolation |
US10917222B2 (en) * | 2014-09-30 | 2021-02-09 | Apple Inc. | Simultaneous operation of multiple time division duplex links using a single transceiver |
-
2016
- 2016-11-07 DE DE102016221758.5A patent/DE102016221758A1/de active Pending
-
2017
- 2017-10-06 WO PCT/EP2017/075464 patent/WO2018082862A1/de unknown
- 2017-10-06 EP EP17783815.8A patent/EP3509926A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2018082862A1 (de) | 2018-05-11 |
DE102016221758A1 (de) | 2018-05-09 |
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