CN1286879A - Broadband cellular network device - Google Patents
Broadband cellular network device Download PDFInfo
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- CN1286879A CN1286879A CN 97182499 CN97182499A CN1286879A CN 1286879 A CN1286879 A CN 1286879A CN 97182499 CN97182499 CN 97182499 CN 97182499 A CN97182499 A CN 97182499A CN 1286879 A CN1286879 A CN 1286879A
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Abstract
A broadband cellular network device comprises a cellular controller means adapted to control the distribution of cellular traffic consisting of asynchronous transfer mode cells in trunking mobile communication networks based on ATM technology, and an asynchronous transfer mode switching means controlled by said cellular controller means and adapted to multicast said cellular traffic to downlink base transceiver stations using multicast properties of the asynchronous transfer mode switching means.
Description
The present invention relates to the honeycomb multicast in the mobile communication system, relate in particular to the multicast feature of utilizing the Asynchronous Transfer Mode exchange component is carried out the honeycomb multicast on down direction Asynchronous Transfer Mode cellular network device.
In recent years, global system for mobile communications (GSM) and other cellular network all developed rapidly in the world.The number of users of corresponding growth causes the junction network of cellular system, and for example the base station sub-system among the GSM (BSS) goes up the correspondence growth of bandwidth.
In addition, travelling carriage (MS), for example mobile telephone set and data communication integrated causes new data service, and for example the appearance of short message (SMS) is perhaps entered the Internet by travelling carriage.Provide the required bandwidth of these new data service more and more difficult by traditional junction network based on PCM, cost is more and more higher.Therefore, the needs that these networks replaced to wide-band communication system constantly increase.
As a kind of WeiLai Technology that uses in the wide-band communication system, Asynchronous Transfer Mode (ATM) has been proposed recently.The basic thought of ATM is to transmit data in the small data packets of fixed size.These packets are called as cell.On behalf of the virtual channel between two terminal uses, this cell flow connect (VCC).Because the exchange of cell realizes by hardware, rather than resemble based on the packet technology of traditional software and realize, so atm technology provides very fast tranmission techniques by software.
In mobile communication system, occur in the aforementioned techniques change, honeycomb multicast, especially downlink traffic, promptly the honeycomb multicast requirement of the traffic carrying capacity of the travelling carriage from the mobile radio communication to terminal use increases.Here, the honeycomb multicast means that a channel leads to more than a destination, comprises that also channel arrives the broadcasting of all possible destination.
Fig. 3 a and 3b summarily show parts of traditional PCM mobile communication system respectively, and wherein the down link honeycomb multicast of channel is finished by the concentrated SC of switching center in position.The SC of switching center gives a plurality of remote base stations BTS with the channel radio that enters.Base station BTS and terminal use's mobile communications.In Fig. 1 a, base station BTS sends multicast channel to a specific travelling carriage, thereby the soft handover procedure of the travelling carriage of cell boarder is for example passed through in realization.In Fig. 1 b, base station BTS sends multicast channel to a plurality of travelling carriages that are arranged in each base station cell area.
But in this traditional PCM mobile communication system, the SC of switching center has represented complicated and expensive equipment on the one hand, and position and purpose travelling carriage are far apart on the other hand.Based on the respective remote swap operation, the high bandwidth of the value between SC of switching center and the base station BTS is that each multicast channel is shared, thereby can't be used by other cellular services amount again.Therefore, overall bandwidth efficiency variation.
Therefore, an object of the present invention is to provide a kind of low-cost broadband cellular network device, it can improve the bandwidth efficiency in the mobile communication system.
This purpose is realized by a kind of broadband cellular network device, aforementioned broadband cellular network device comprises the honeycomb control device of the distribution that can control the cellular services amount of being made up of the Asynchronous Transfer Mode cell, and, described cellular services amount can be multicast to the Asynchronous Transfer Mode switch of down link mobile communication system parts by described honeycomb control device control.
Under above-mentioned configuration, advantageously utilized the multicast feature of lower-cost Asynchronous Transfer Mode exchange component to finish the honeycomb multicast of close destination.The channel that enters is worth high bandwidth thereby before broadband cellular network device, saved, because can be distributed to the most some destinations of the exchange component of close travelling carriage.
Other embodiments of the invention provide in the attached relevant claim in back.
The Asynchronous Transfer Mode switch preferably is directly connected to described descending base station.
Another kind of scheme is, the Asynchronous Transfer Mode switch can be high-rise exchange component, and it consigns to described cellular services amount each the low layer exchange component that is connected to described downlink base station.
Under latter event, high-rise exchange component can comprise the control device that Asynchronous Transfer Mode is specific, and it provides the interface of honeycomb control device, and the low layer exchange component can comprise that the clearing house needs the required hardware of cellular services amount.
Described Asynchronous Transfer Mode exchange component preferably can arrive the Asynchronous Transfer Mode cell switching that arrives its a plurality of output ports.
Described Asynchronous Transfer Mode exchange component preferably can also exchange to a plurality of output virtual channels with the virtual channel that arrives.
In addition, described Asynchronous Transfer Mode exchange component can for good and all take virtual channel as the multicast virtual channel, and the occupied virtual channel that arrives is exchanged to a plurality of output virtual channels.
Described honeycomb control device and described Asynchronous Transfer Mode switch preferably are arranged in the base station controller equipment of position near the purpose travelling carriage.
At last, this equipment can be handled the Asynchronous Transfer Mode cell of the mixed content of voice-over message, data-message, signaling message or above-mentioned message.
Therefore, be preferably used in honeycomb multicast on the down direction of the multicast feature that adopts the Asynchronous Transfer Mode exchange component according to equipment of the present invention.
Below, describe the present invention in detail by preferred embodiment in conjunction with the accompanying drawings, in the accompanying drawings:
Fig. 1 shows the part of employing according to the mobile communication system of the broadband cellular network device of the preferred embodiment of the present invention;
Fig. 2 summary description broadband cellular network device according to the preferred embodiment; And
Fig. 3 a and 3b show the part of known mobile communication system.
Fig. 1 summary shows the part gsm system, wherein uses based on the honeycomb network element of ATM as a kind of preferred embodiment according to broadband cellular network device of the present invention.
In Fig. 1, represented the first descending mobile services switching centre (MSC) 1 that transmits level to be connected to the predetermined port of ATM switch 3.In addition, base station controller (BSC) 2a is connected to other predetermined port of ATM switch 3.The output of ATM switch 3 is connected to a plurality of base stations (BTS) 4, and the latter is as previously described, with specific one or more communication among each terminal use's travelling carriage (MS) 5.
In this structure, ATM switch 3 is served as exchange unit, is controlled by base station controller 2a.
Fig. 2 has summarily illustrated the honeycomb network element based on ATM, as the described preferred embodiment of broadband cellular network device.
Honeycomb network element based on ATM comprises honeycomb controller 2 and ATM switch 3, the exchange of the cellular services channel of being made up of the Asynchronous Transfer Mode cell is provided, and aforementioned Asynchronous Transfer Mode cell can carry for example mixed content of speech information, data-message, signaling message or aforementioned messages.
Honeycomb controller 2 is finished known honeycomb correlation function, signaling for example, and suitably connect ATM switch 3 to be controlled.
ATM switch 3 can be the form of high layer switch, and it is first that it consigns to corresponding low layer exchange with the cellular services amount.In this case, high level exchange unit comprises the control device that Asynchronous Transfer Mode is specific, and it provides the suitable interface of honeycomb controller 2, and the first required hardware of the described cellular services amount of exchange that comprises of low layer exchange.
Shown in the dotted line of Fig. 2, ATM switch 3 has multicast feature, promptly the cellular services amount that each input port arrives can be connected to its one or more output ports arbitrarily.In fact, the Asynchronous Transfer Mode cell that arrives the input port of ATM switch 3 is copied to one or more output ports and one or more virtual channel VC respectively.
The multicast feature of use ATM switch 3 is carried out the multicast connection and is had multiple possibility.For example, can take the permanent virtual channel for multicast operation.In this case, comprise for example voice, data and signaling information, the Asynchronous Transfer Mode cell that arrives from the virtual channel for the treatment of multicast is copied to the output port and the virtual channel of predetermined quantity respectively.
Alternative dispensing means is, detecting when needing multicast operation, can be by atm signaling, for example creating new point-to-multipoint according to the atm signaling of the User Network Interface 3.1 (UNI3.1) of atm forum connects, UNI3.1 is the standard that atm forum is adopted, in order to the connection between definition user or terminal identity and the local switch, it provides the point of interface between ATM terminal use and the special ATM switch, perhaps the point of interface between special ATM switch and the common carrier atm network.
Because actual exchange is finished by the cheap relatively ATM switch 3 of cost, so the realization cost of multicast operation is lower, aforementioned ATM switch 3 is positioned at the Base Station Controller area near base station 4, rather than long-range mobile services switching centre 1 zone.In addition, saved and be worth high bandwidth, because need the information of multicast to be distributed to a plurality of destinations of the exchange unit of the most close terminal use's travelling carriage in position.
Should be appreciated that above description and accompanying drawing only are used to illustrate the present invention.Therefore, also can be used to be different from the network of the GSM of this routine indication according to equipment of the present invention.The preferred embodiments of the present invention can also change in appended claim book scope.
Claims (10)
1. broadband cellular network device comprises
A kind of honeycomb control device (2), it can control the distribution of the cellular services amount of being made up of the Asynchronous Transfer Mode cell, and
A kind of Asynchronous Transfer Mode switch (3), it is controlled by described honeycomb control device, described cellular services amount can be multicast to base station (4).
2. according to the equipment of claim 1, wherein Asynchronous Transfer Mode switch (3) is directly connected to described base station (4).
3. according to the equipment of claim 1, wherein Asynchronous Transfer Mode switch (3) is that high-rise exchange is first, and it consigns to described cellular services amount each low layer exchange unit that is connected to described base station (4).
4. according to the equipment of claim 3, its exchange on the middle and senior level unit comprises the Asynchronous Transfer Mode specific controller device of the interface that honeycomb control device (2) is provided, and wherein low layer exchange unit comprises the required hardware of the described cellular services amount of exchange.
5. according to the equipment of claim 1 to 4, wherein said Asynchronous Transfer Mode exchange unit (3) can arrive the Asynchronous Transfer Mode cell switching that arrives its a plurality of output ports.
6. according to the equipment of claim 1 to 4, wherein said Asynchronous Transfer Mode exchange unit (3) can exchange to a plurality of output virtual channels with the virtual channel that arrives.
7. according to the equipment of claim 6, wherein said Asynchronous Transfer Mode exchange unit (3) can forever take a virtual channel as the multicast virtual channel, and the virtual channel that takies that enters is exchanged to a plurality of output virtual channels.
8. according to the equipment of claim 1, wherein said honeycomb control device (2) and described Asynchronous Transfer Mode switch (3) are arranged in the base station controller equipment (6) near purpose base station (5).
9. according to the equipment of claim 1, the combined arrangement of wherein said Asynchronous Transfer Mode cell voice-over message, data-message, signaling message or aforementioned messages.
10. on the down direction of the multicast feature that adopts Asynchronous Transfer Mode exchange unit (3), use equipment to carry out the honeycomb multicast according to one of aforementioned claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB971824991A CN1174644C (en) | 1997-12-30 | 1997-12-30 | Broadband cellular network device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB971824991A CN1174644C (en) | 1997-12-30 | 1997-12-30 | Broadband cellular network device |
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| Publication Number | Publication Date |
|---|---|
| CN1286879A true CN1286879A (en) | 2001-03-07 |
| CN1174644C CN1174644C (en) | 2004-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB971824991A Expired - Fee Related CN1174644C (en) | 1997-12-30 | 1997-12-30 | Broadband cellular network device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100459564C (en) * | 2002-09-03 | 2009-02-04 | 诺基亚西门子通信有限责任两合公司 | Method & apparatus for providing multicast capability within an ATM network |
| CN101075894B (en) * | 2007-07-09 | 2012-05-23 | 中兴通讯股份有限公司 | Method for repeating multi-medium broadcasting/packet broadcasting service |
| CN101052143B (en) * | 2007-05-24 | 2012-06-06 | 中兴通讯股份有限公司 | Method for realizing multimedia broadcast or multicast service rebroadcasting |
| CN101707739B (en) * | 2002-05-18 | 2012-12-26 | Lg电子株式会社 | Method for receiving MBMS service from network |
-
1997
- 1997-12-30 CN CNB971824991A patent/CN1174644C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101707739B (en) * | 2002-05-18 | 2012-12-26 | Lg电子株式会社 | Method for receiving MBMS service from network |
| US8380232B2 (en) | 2002-05-18 | 2013-02-19 | Lg Electronics Inc. | Selective service method in multicast system |
| CN100459564C (en) * | 2002-09-03 | 2009-02-04 | 诺基亚西门子通信有限责任两合公司 | Method & apparatus for providing multicast capability within an ATM network |
| CN101052143B (en) * | 2007-05-24 | 2012-06-06 | 中兴通讯股份有限公司 | Method for realizing multimedia broadcast or multicast service rebroadcasting |
| CN101075894B (en) * | 2007-07-09 | 2012-05-23 | 中兴通讯股份有限公司 | Method for repeating multi-medium broadcasting/packet broadcasting service |
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| Publication number | Publication date |
|---|---|
| CN1174644C (en) | 2004-11-03 |
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