CN1182735C - Device for implementing chain group web E1 transmission by-pass, and transmission method - Google Patents
Device for implementing chain group web E1 transmission by-pass, and transmission method Download PDFInfo
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- CN1182735C CN1182735C CNB011265337A CN01126533A CN1182735C CN 1182735 C CN1182735 C CN 1182735C CN B011265337 A CNB011265337 A CN B011265337A CN 01126533 A CN01126533 A CN 01126533A CN 1182735 C CN1182735 C CN 1182735C
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Abstract
The present invention relates to a device for achieving a chain group web E1 transmission bypass and a transmission method thereof, wherein the device comprises a base station controller and n base stations. A signal is sent out from the base station controller and is sent to one base station from a front-stage base station, and then the signal is sent to a mobile table through an airy interface, and simultaneously, the base station controller receives the signal sent by the base station from the mobile table. The prevent invention is characterized in that the device for achieving a chain group web E1 transmission bypass also comprises n-1 signal bypass devices which are respectively connected in series before each base station except the last base station and are respectively connected with the local base station, the front-stage base station and a back-stage base station. In a chain group web of a mobile communicating system, when a front-stage device fails, an E1 signal transmitted by the front-stage device can bypass the device by the transmission method of the device for achieving a chain group web E1 transmission by-pass, the signal is directly transmitted to a device of the next stage, and the reliability of the chain group web is enhanced.
Description
Technical field
The invention belongs to the transmission field of mobile communication, relate in particular to a kind of device and transmission method thereof of realizing chain group web E 1 transmission by-pass.
Background technology
In the mobile communcations systems such as GSM, CDMA, WCDMA, CDMA2000, the transfer of data between subsystem interface need be finished by transmission system.These interfaces comprise and are not limited in the A interface between Abis interface, base station controller BSC and the moving exchanging center MSC between base transceiver station BTS and base station controller BSC in the gsm system, the Iu interface between lub interface, RNC and CN (WCDMA core net) between NodeB in the WCDMA system (WCDMA base station) and RNC (WCDMA base station controller); A interface between the Abis interface in the CDMA2000 system between BTS and BSC, BSC and MSC.
Various network construction forms are arranged between the mobile communcations system subsystem, comprise chain, tree type, ring-like and star-like, wherein the link of chain networking signal process is more, and circuit reliability is relatively poor.But chain is applicable to and is zonal distribution, and the special area that user density is less is along the line as highway, railway is along the line etc.Wherein, the communication link protection mode can satisfy customer requirements well, saves transmission equipment in a large number.
Common chain networking comprises base station controller BSC, a n base station BTS as shown in Figure 1, and the step of its transmission signals is:
(1) for down link, signal at first is transferred to BTS1 by BSC through E1
(2) BTS1 takes out useful data from the signal that the E1 transmission comes;
(3) BTS1 data forwarding that next stage is needed is to descending E1;
(4) BTS2 receives the signal that BTS1 transmits from E1, takes out useful data;
(5) BTS2 adopts the method identical with BTS1, gives next stage BTS3 relevant data forwarding;
(6) BTS3 receives the signal that BTS2 transmits from E1, takes out useful data;
(7), adopt in a like fashion with down link for up link.
The shortcoming of its existence is: if the relevant portion of BTS1 breaks down, downlink data just can't be transmitted down by BTS1, and upstream data just can't be transmitted up by BTS1 simultaneously, so that BTS2, BTS3 also can't converse.
Summary of the invention
The objective of the invention is at the shortcoming of the chain networking of present mobile communcations system and the method for a kind of E1 of the utilization transmission by-pass that provides, this method can realize when the upper level equipment fault, can this equipment of bypass through the E1 signal of this device transmission, directly pass to next stage equipment, improved the reliability of chain networking.
In order to realize purpose of the present invention, the technical scheme that the present invention takes is: a kind of device of realizing chain group web E 1 transmission by-pass, comprise: base station controller, n base station, signal sends from base station controller, send to certain base station via the upper level base station and be issued to travelling carriage by air interface again, base station controller receives the signal of sending by the base station from travelling carriage simultaneously, be characterized in, also comprise n-1 signal shunting device, this n-1 signal shunting device is serially connected in respectively before each base station except that last base station, its respectively with home base stations, base station controller or upper level base station, and the next stage base station is connected.
Above-mentioned a kind of device of realizing chain group web E 1 transmission by-pass, wherein, described shunting device is a relay; The a pair of normally opened contact of this relay connects the sending and receiving end of home base stations respectively; The pair of contact of this relay connects the sending and receiving end of base station controller or upper level base station respectively; The a pair of normally-closed contact of this relay connects the sending and receiving end of next stage base station respectively, and connects the sending and receiving end of home base stations.
Above-mentioned a kind of device of realizing chain group web E 1 transmission by-pass, wherein, after home base stations powers on and under the situation that relay does not tap into the E1 signal, home base stations outputs to the next stage signal of base station with E1 chip in this base station and closes, allow this path be tri-state state, just open-minded after the E1 signal inserts into.
Above-mentioned a kind of device of realizing chain group web E 1 transmission by-pass, wherein, described shunting device is that circuit is selected in a number word select, and this numeral selects circuit respectively with base station controller or the upper level base station is two-way is connected, is connected, is connected with the next stage base station is two-way with home base stations is two-way; When home base stations was working properly, the E1 signal selected the selection of circuit to enter home base stations by numeral; When home base stations had fault, the E1 signal selected the circuit bypass to enter the next stage base station by numeral.
Above-mentioned a kind of device of realizing chain group web E 1 transmission by-pass, wherein, described numeral selects circuit to comprise a cpu chip and an E1 chip; When cpu chip detects home base stations when working properly, the E1 signal that comes is transmitted in base station controller or upper level base station insert home base stations; When cpu chip detects home base stations fault is arranged, then control the E1 chip E1 signal directly is transferred to the next stage base station, realize bypass functionality to home base stations.
Above-mentioned a kind of device of realizing chain group web E 1 transmission by-pass, wherein, described home base stations is also exported one and is judged that the selecting side of signal and numeral selection circuit is connected; Describedly judge that signal is one in order to selecting whether normal signal of home base stations work that circuit provides to numeral, thereby select circuit to determine whether the E1 signal inserts home base stations by numeral.
Above-mentioned a kind of device of realizing chain group web E 1 transmission by-pass, wherein, described numeral selects circuit also to comprise a power supply circuit, and this power supply circuit comprises a battery and a relay, and the contact of relay selects circuit, home base stations, battery to be connected with numeral respectively; When home base stations had electricity, the power supply of numeral selection circuit was provided by the power supply of home base stations, and the E1 signal selects to enter home base stations; When home base stations cut off the power supply, numeral selected the power supply of circuit to be provided by battery, and the E1 signal selects to enter the next stage base station.
A kind of method that realizes chain group web E 1 transmission by-pass is characterized in, may further comprise the steps:
(1) for down link,
A, the signal that is sent by base station controller at first are transferred to first base station via first shunting device through E1;
B, first base station receive the signal that comes from the E1 transmission and therefrom take out useful data, and the data forwarding that next stage is needed is to descending E1 simultaneously;
C, behind second shunting device, second base station receives the signal that transmit first base station from E1, takes out useful data, and a relevant data forwarding to next stage the 3rd base station;
D, the identical method of employing step c, behind the 3rd shunting device, the 3rd base station receives the signal that transmit second base station from E1, takes out useful data, and a relevant data forwarding is to next stage the 4th base station; So, send data until n base station;
E, in transmission course, if home base stations has fault, then the upper level signal is switched to the next stage base station by the shunting device before it, send data until n base station;
(2) for up link,
A, the signal that sends from travelling carriage after air interface receives, are passed through E1 to the upper level base station transmits by the n base station again;
B, n-1 base station receive the signal that comes from up E1 transmission and also therefrom take out useful data, and the data that upper level is needed are forwarded on the up E1 via the n-1 shunting device simultaneously;
C, n-2 base station receive the signal that transmit the n-1 base station from E1, take out useful data, and relevant data are transmitted to upper level n-3 base station via the n-2 shunting device;
D, the identical method of employing step c, the n-3 base station receives the signal that transmit the n-2 base station from E1, takes out useful data, and relevant data are transmitted to upper level n-4 base station through the n-3 shunting device; So, send data until first base station and behind first shunting device, arrive base station controller;
E, in transmission course, if home base stations has fault, then the next stage signal is switched to the upper level base station by the shunting device before it, until behind first shunting device to base station controller.
Because the present invention has adopted above technical scheme, the method of utilizing the E1 transmission by-pass is in the transport service of mobile communcations system (comprising GSM, CDMA, WCDMA, CDMA2000 etc.) subsystem chain networking, when the upper level equipment fault, can this equipment of bypass through the E1 signal of this device transmission, directly pass to next stage equipment, realize the upper level equipment fault and do not influence the function of next stage equipment, thereby improved the reliability of chain networking.
Description of drawings
Concrete feature of the present invention, performance are further described by following embodiment and accompanying drawing thereof.
Fig. 1 is the structural representation of prior art chain networking.
Fig. 2 is the structural representation that the present invention realizes the chain networking of E1 transmission by-pass function.
Fig. 3 is that one of embodiment of the invention adopts relay to realize the schematic diagram of E1 transmission by-pass function.
Fig. 4 is that two of the embodiment of the invention adopts numeral to select circuit to realize the schematic diagram of E1 transmission by-pass function.
Fig. 5 is the electric theory diagram that numeral is selected circuit among Fig. 4.
Fig. 6 is that the present invention's numeral is selected the embodiment of circuit schematic diagram.
Embodiment
Below be example with the Abis interface of GSM, summary of the invention is described.Other interfaces for mobile communcations system (comprise the A interface that is not limited in the gsm system, the lub interface in the WCDMA system, Iu interface; Abis interface in the CDMA2000 system, A interface), adopt similar measure to be achieved.
See also Fig. 2, a kind of device of realizing chain group web E 1 transmission by-pass, comprise: base station controller, n base station, signal sends from base station controller, send to certain base station via the upper level base station and be issued to travelling carriage via air interface again, base station controller receives the signal of sending by each base station from travelling carriage simultaneously, also comprise n-1 signal shunting device, this n-1 signal shunting device is serially connected in each base station and the upper level and the base-station connected part of next stage of n-1 base station except that last base station respectively, promptly increases a shunting device between upper level E1 transmission and next stage E1 transmission.Be example with BTS1 below, the function of shunting device is described.Under normal condition, pass through shunting device from the E1 transmission of BSC and enter BTS1; Simultaneously, shunting device is also passed through in the transmission of the E1 from BTS1 to BTS2.Signal transduction pathway that is to say that at this moment shunting device transmits for E1 is transparent shown in the solid line in the shunting device.When BTS1 broke down (such as BTS1 outage or equipment fault), the E1 transmission was directly connected to next stage BTS2 from BSC by the control of shunting device.Signal transduction pathway that is to say that at this moment the E1 transmission is bypass for BTS1 shown in the dotted line in the shunting device.
See also Fig. 3, this is the schematic diagram of one of embodiment of the invention, and the shunting device described in this embodiment is a relay; The a pair of normally opened contact of this relay connects the sending and receiving end of home base stations respectively; The pair of contact of this relay connects the sending and receiving end of base station controller or upper level base station respectively; The a pair of normally-closed contact of this relay connects the sending and receiving end of next stage base station respectively, and connects the sending and receiving end of home base stations.Shown in Figure 3 is this relay gets when electric state.After home base stations powers on and relay does not tap into the E1 signal under the situation of coming, home base stations outputs to next stage signal of base station a, b with E1 chip in this base station and closes, and allows this path be tri-state state, and is just open-minded after the E1 signal inserts into.
Present embodiment directly with the repeater of relay as the E1 transmission, is used the working power of the power supply of BTS as this relay.When BTS had electricity, promptly this relay also had electricity, and the E1 signal is linked on this BTS through the adhesive of the contact of this relay, is transferred to next stage BTS through this BTS; When BTS cut off the power supply, promptly this relay did not have electricity yet, and the E1 signal discharges through the contact of relay, disconnects this BTS, and directly receives on the next stage BTS.
Just present BTS performance, the endurable time of E1 transmission link chain rupture (the not chain rupture of LAPD link) is: 2 seconds, (for example model is: AS-5W-K-B05) so the present invention is as the relay of transmission signals, because its general adhesive and release time are between 0.2ms～20ms, can satisfy the requirement of E1 transmission by-pass fully.
But, after BTS powers on, the E1 signal not being tapped under the next situation at relay, BTS should be closed the signal that outputs to next stage BTS of E1 chip, allows this path be tri-state state, just opens this passage after the E1 signal inserts into.
See also Fig. 4, shunting device of the present invention can adopt numeral to select circuit to realize, this numeral selects circuit to be connected, to be connected, to be connected with base station, the next stop is two-way with home base stations is two-way with the two-way of base station controller or upper level base station respectively.
See also Fig. 5, this is that the present invention selects circuit to realize the concrete line map of E1 transmission by-pass function with numeral, and the control circuit that this numeral selects circuit to be made up of a cpu chip and E1 chip constitutes.The E1 chip intends adopting the T7688 model of LUCENT company or the 21Q554 model of DALLAS company, and present embodiment adopts the T7688 chip to realize.(BTS) selects this BTS when electricity is arranged when home base stations, selects next BTS when not having electricity, thereby realizes BTS outage E1 transmission by-pass function.When considering the BTS outage, this numeral selection circuit can not have power supply yet, and the power supply of circuit was adopted storage battery or directly just used powered battery (rechargeable battery) this moment.Promptly when BTS had electricity, the power supply of this numeral selection circuit was provided by the power supply of BTS, and the E1 signal is selected to enter this BTS, and the working power of relay is just provided by the power supply of BTS; When BTS cut off the power supply, this numeral selected the power supply of circuit to be provided by battery, and the E1 signal selects to enter next stage BTS.Use relay as selector switch between BTS power supply and the powered battery.Judge by the signal of judging that numeral selects circuit to receive home base stations output whether BTS is out of order.
See also Fig. 6, this is to select circuit to realize the concrete theory diagram of E1 transmission by-pass function with numeral.This embodiment utilizes the transmitting-receiving of 4 road E1 of T7688 to carry out that output that distal loop returns to realize E1 selects, and its workflow is:
(1) when this BTS has electricity, the winding first via and Third Road, and the second the road and the four the tunnel be arranged to not output;
(2) when this BTS does not have electricity, winding the second road and the four tunnel, and the first via and Third Road are arranged to not output;
(3) receive making a start of the four tunnel receiving end and the second tunnel respectively through the E1 signal of the transmission of this BTS.
Receive making a start together as two-way, must strict guarantee carry out work, otherwise warfare can occur in the different time.
It is as follows that the present invention carries out the method step of signal bypass:
(1) for down link,
A, the signal that is sent by base station controller at first are transferred to first base station via first shunting device through E1;
B, first base station receive the signal that comes from the E1 transmission and therefrom take out useful data, and the data forwarding that next stage is needed is to descending E1 simultaneously;
C, behind second shunting device, second base station receives the signal that transmit first base station from E1, takes out useful data, and a relevant data forwarding to next stage the 3rd base station;
D, the identical method of employing step c, behind the 3rd shunting device, the 3rd base station receives the signal that transmit second base station from E1, takes out useful data, and a relevant data forwarding is to next stage the 4th base station; So, send data until n base station;
E, in transmission course, if home base stations has fault, then the upper level signal is switched to the next stage base station by the shunting device before it, send data until n base station;
(2) for up link,
A, the signal that sends from travelling carriage after air interface receives, are passed through E1 to the upper level base station transmits by the n base station again;
B, n-1 base station receive the signal that comes from the E1 transmission and also therefrom take out useful data, and the data that upper level is needed are forwarded on the up E1 via the n-1 shunting device simultaneously;
C, n-2 base station receive the signal that transmit the n-1 base station from E1, take out useful data, and relevant data are transmitted to upper level n-3 base station via the n-2 shunting device;
D, the identical method of employing step c, the n-3 base station receives the signal that transmit the n-2 base station from E1, takes out useful data, and relevant data are transmitted to upper level n-4 base station behind the n-3 shunting device; So, send data until first base station and behind first shunting device, arrive base station controller;
E, in transmission course, if home base stations has fault, then the upper level signal is switched to the next stage base station by the shunting device before it, until behind first shunting device to base station controller.
In the mobile communcations system chain networking, utilize apparatus and method of the present invention, can realize when the upper level equipment fault, through this equipment of bypass, signal directly can be passed to next stage equipment, improved the reliability of chain networking.
Claims (8)
1, a kind of device of realizing chain group web E 1 transmission by-pass, comprise: base station controller, a n base station, signal sends from base station controller, send to certain base station via the upper level base station and be issued to travelling carriage by air interface again, base station controller receives the signal of sending by the base station from travelling carriage simultaneously, it is characterized in that, also comprise n-1 signal shunting device, this n-1 signal shunting device is serially connected in respectively before each base station except that last base station, and it is connected with home base stations, base station controller or upper level base station and next stage base station respectively.
2, a kind of device of realizing chain group web E 1 transmission by-pass according to claim 1 is characterized in that, described shunting device is a relay; The a pair of normally opened contact of this relay connects the sending and receiving end of home base stations respectively; The pair of contact of this relay connects the sending and receiving end of base station controller or upper level base station respectively; The a pair of normally-closed contact of this relay connects the sending and receiving end of next stage base station respectively, and connects the sending and receiving end of home base stations.
3, a kind of device of realizing chain group web E 1 transmission by-pass according to claim 2, it is characterized in that, after home base stations powers on and under the situation that relay does not tap into the E1 signal, home base stations outputs to the next stage signal of base station with E1 chip in this base station and closes, allow this path be tri-state state, just open-minded after the E1 signal inserts into.
4, a kind of device of realizing chain group web E 1 transmission by-pass according to claim 1, it is characterized in that, described shunting device is that circuit is selected in a number word select, and this numeral selects circuit respectively with base station controller or the upper level base station is two-way is connected, is connected, is connected with the next stage base station is two-way with home base stations is two-way; When home base stations was working properly, the E1 signal selected the selection of circuit to enter home base stations by numeral; When home base stations had fault, the E1 signal selected the circuit bypass to enter the next stage base station by numeral.
5, a kind of device of realizing chain group web E 1 transmission by-pass according to claim 4 is characterized in that, described numeral selects circuit to comprise a cpu chip and an E1 chip; When cpu chip detects home base stations when working properly, the E1 signal that comes is transmitted in base station controller or upper level base station insert home base stations; When cpu chip detects home base stations fault is arranged, then control the E1 chip E1 signal directly is transferred to the next stage base station, realize bypass functionality to home base stations.
6, a kind of device of realizing chain group web E 1 transmission by-pass according to claim 4 is characterized in that, described home base stations is also exported one and judged that the selecting side of signal and numeral selection circuit is connected; Describedly judge that signal is one in order to selecting whether normal signal of home base stations work that circuit provides to numeral, thereby select circuit to determine whether the E1 signal inserts home base stations by numeral.
7, a kind of device of realizing chain group web E 1 transmission by-pass according to claim 4, it is characterized in that, described numeral selects circuit also to comprise a power supply circuit, this power supply circuit comprises a battery and a relay, and the contact of relay selects circuit, home base stations, battery to be connected with numeral respectively; When home base stations had electricity, the power supply of numeral selection circuit was provided by the power supply of home base stations, and the E1 signal selects to enter home base stations; When home base stations cut off the power supply, numeral selected the power supply of circuit to be provided by battery, and the E1 signal selects to enter the next stage base station.
8, a kind of method that realizes chain group web E 1 transmission by-pass is characterized in that, may further comprise the steps:
(1) for down link,
A, the signal that is sent by base station controller at first are transferred to first base station via first shunting device through E1;
B, first base station receive the signal that comes from the E1 transmission and therefrom take out useful data, and the data forwarding that next stage is needed is to descending E1 simultaneously;
C, behind second shunting device, second base station receives the signal that transmit first base station from E1, takes out useful data, and a relevant data forwarding to next stage the 3rd base station;
D, the identical method of employing step c, behind the 3rd shunting device, the 3rd base station receives the signal that transmit second base station from E1, takes out useful data, and a relevant data forwarding is to next stage the 4th base station; So, send data until n base station;
E, in transmission course, if home base stations has fault, then the upper level signal is switched to the next stage base station by the shunting device before it, send data until n base station;
(2) for up link,
A, the signal that sends from travelling carriage after air interface receives, are passed through E1 to the upper level base station transmits by the n base station again;
B, n-1 base station receive the signal that comes from up E1 transmission and also therefrom take out useful data, and the data that upper level is needed are forwarded on the up E1 via the n-1 shunting device simultaneously;
C, n-2 base station receive the signal that transmit the n-1 base station from E1, take out useful data, and relevant data are transmitted to upper level n-3 base station via the n-2 shunting device;
D, the identical method of employing step c, the n-3 base station receives the signal that transmit the n-2 base station from E1, takes out useful data, and relevant data are transmitted to upper level n-4 base station through the n-3 shunting device; So, send data until first base station and behind first shunting device, arrive base station controller;
E, in transmission course, if home base stations has fault, then the next stage signal is switched to the upper level base station by the shunting device before it, until behind first shunting device to base station controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011265337A CN1182735C (en) | 2001-08-24 | 2001-08-24 | Device for implementing chain group web E1 transmission by-pass, and transmission method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011265337A CN1182735C (en) | 2001-08-24 | 2001-08-24 | Device for implementing chain group web E1 transmission by-pass, and transmission method |
Publications (2)
| Publication Number | Publication Date |
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| CN1402561A CN1402561A (en) | 2003-03-12 |
| CN1182735C true CN1182735C (en) | 2004-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB011265337A Expired - Lifetime CN1182735C (en) | 2001-08-24 | 2001-08-24 | Device for implementing chain group web E1 transmission by-pass, and transmission method |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100389619C (en) * | 2004-06-08 | 2008-05-21 | 华为技术有限公司 | System for realizing interface bypass function between link group network base station and base station controller |
| CN101883006B (en) * | 2010-06-01 | 2015-04-01 | 中兴通讯股份有限公司 | Cascade system capable of realizing automatic line bridging and method |
| CN102064968B (en) * | 2010-12-31 | 2013-01-23 | 华为数字技术（成都）有限公司 | Method, device and system for preventing embedded BYPASS device from powering down |
| CN102064967B (en) * | 2010-12-31 | 2013-01-02 | 成都市华为赛门铁克科技有限公司 | BYPASS realizing method, equipment and system |
| CN104468290B (en) * | 2014-10-24 | 2018-07-10 | 深圳市远望谷信息技术股份有限公司 | A kind of network-building method and device of chain communication network |
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2001
- 2001-08-24 CN CNB011265337A patent/CN1182735C/en not_active Expired - Lifetime
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Granted publication date: 20041229 |