CN1286880A - Broadband cellular network device - Google Patents
Broadband cellular network device Download PDFInfo
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- CN1286880A CN1286880A CN97182500A CN97182500A CN1286880A CN 1286880 A CN1286880 A CN 1286880A CN 97182500 A CN97182500 A CN 97182500A CN 97182500 A CN97182500 A CN 97182500A CN 1286880 A CN1286880 A CN 1286880A
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Abstract
A broadband cellular network device comprises a base station controller unit, an asynchronous transfer mode controller 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 asynchronous transfer mode controller. The base station controller unit, the asynchronous transfer mode controller and the asynchronous transfer mode switching means form an ATM based base station controller (BSC) capable of performing ATM switching and adapted to replace PCM based base station controllers in base station subsystems (BSS) of asynchronous transfer mode based cellular networks.
Description
The present invention relates to a kind of equipment that is used for controlling based on the cellular services of the mobile communication system of asynchronous communication mode technology, also relate to a kind of base station controller that adopts this equipment.
In recent years, the development of global global system for mobile communications (GSM) and other Cellular Networks is swift and violent.Number of users increases thereupon, causes the trunk network of cellular system such as the corresponding increase of bandwidth in the base station sub-system among the GSM (BSS).
Fig. 5 a and 5b illustrate the example of the part of the trunk network in the mobile communication system.Continue in these in the net, mobile services switching centre MSC and relevant visitor location register VLR are connected to base station controller BSC.Base station controller BSC is connected to base station transceiver BTS again, base station transceiver and terminal use's travelling carriage (not shown) connection separately.Base station controller BSC and base station transceiver BTS constitute so-called base station sub-system BSS, shown in Fig. 5 a and 5b dotted line.
In order to be described in more detail, in Fig. 5 a, show part based on the trunk network of conventional pulse-code modulation (PCM), wherein, coupled link circuit is that connection between the network element and the exchange in the base station controller BSC are all based on PCM.
Yet travelling carriage such as mobile phone make with combining of data communication and can adopt for example short message service of new data service (SMS) recently, perhaps can utilize the travelling carriage access the Internet.Meanwhile, can also see, more and more need to replace these conventional arrowband PCM networks with wide-band communication system.
Asynchronous communication mode (also abbreviating ATM as) has been proposed, as another used in wide-band communication system data transferring technique.
The basic thought of asynchronous communication mode is, transmits data with the small data packets of regular length.These packets are called cell.On behalf of the pseudo channel between each terminal use, these cell flows connect VCC.The virtual characteristics that connects is only just to transmit cell when data will send.Therefore, compare, when not having pay(useful) load, do not take resource with known connection-oriented system.
Asynchronous communication mode also is applicable to the grouped data that transmits in the net of GSM for example.In this respect, proposed GPRS (GPRS), wherein, packet transmits by the gsm wireless interface such as IP operation.
Yet, if adopt the base station sub-system shown in Fig. 5 a based on conventional PCM, so, such packet must be transformed into the PCM form earlier in base station transceiver BTS, and remapping before sending to public Packet Data Network such as internet then is packet format.For example the packet from public data network to base station transceiver BTS also must be carried out same conversion for backpropagation.Adopt the asynchronous communication mode process, can avoid this data conversion, moreover, can also directly packet be sent to network based on public asynchronous communication mode from base station sub-system BSS with the asynchronous communication mode cell.
In order to adopt asynchronous communication mode in the trunk network of gsm system, the conventional PCM link between each network element must replace with atm link at least.Therefore, in its configuration, connect by atm link based on the GSM network element of conventional PCM, its example is as shown in Fig. 5 b.
This technology is called circuit emulation business (CES), but this also is not effective realization of ATM, and this is because in this case, base station controller BSC and even base station sub-system BSS do not support the ATM exchange.
Therefore, the object of the present invention is to provide a kind of equipment, this equipment can be supported the ATM exchange of base station sub-system layer, thereby effectively realizes asynchronous communication mode in mobile radio communication.
Consider the expansion in the future of this mobile radio communication, the present invention also will provide a kind of and can cheaply produce, the equipment of installation and maintenance.Compare with the PCM technology, the asynchronous communication mode technology can also provide more substantial capacity.Therefore, can reduce physical cord way in the base station sub-system.
According to the present invention, this purpose realizes with a kind of broadband cellular network device, this equipment comprises a base station control unit, can be used for controlling the distribution of the asynchronous communication mode cellular services that constitutes by the asynchronous communication mode cell, one is connected with described base station control unit and by the asynchronous communication mode controller of described base station control unit control, be connected with described asynchronous communication mode controller with one and, can be used for exchanging the asynchronous communication mode cellular services by the asynchronous communication mode switch of described asynchronous communication mode controller control.
Above configuration has been arranged, combined with the function of asynchronous communication mode switch, just can realize broadband cellular network device based on asynchronous communication mode by function with the base station controller unit.
This equipment can be finished the asynchronous communication mode exchange in the base station sub-system, moreover the basis of a cheapness also is provided for the base station controller based on asynchronous communication mode used in the Cellular Networks based on asynchronous communication mode.
Described in further execution mode of the present invention such as attached related right require.
Described base station unit preferably provides arbitrary implementation or the comprehensive implementation of software/hardware in the software, hardware of controller function of base station, and preferably includes an asynchronous communication mode controller command device.
The asynchronous communication mode controller is used to provide a kind of interface, and the command conversion that is used for that the base station controller unit is sent is to make the asynchronous communication mode switch make the order of switching motion.
Advantage is that the asynchronous communication mode controller can adopt the signaling based on asynchronous communication mode, and the control command of the connection hardware of control asynchronous communication mode switch can be provided.
According to further design, the asynchronous communication mode controller can comprise at least two functional layers, a functional layer is the upper strata relevant with Cellular Networks, can be used for carrying out and the Cellular Networks function associated, and another functional layer is the lower floor relevant with asynchronous communication mode, can be used for carrying out and asynchronous communication mode switch function associated.
Therefore, the following functional layer of asynchronous communication mode controller, its advantage is to can be used to control the switching hardware of asynchronous communication mode switch.
In addition, the asynchronous communication mode controller also can be used as the general switch management protocol controller.Therefore, the asynchronous communication mode switch can be used to support described general switch management protocol.
Below, by preferred implementation in detail the present invention is described in detail with reference to the accompanying drawings, wherein:
Fig. 1 shows the mobile radio communication that adopts asynchronous communication mode link and asynchronous communication mode exchange;
Fig. 2 shows the broadband cellular network device according to first preferred implementation;
Fig. 3 shows the broadband cellular network device according to second preferred implementation;
Fig. 4 shows the broadband cellular network device according to the 3rd preferred implementation;
Fig. 5 a shows the part of the existing mobile radio communication that adopts PCM link and PCM exchange;
Fig. 5 b shows the part of the mobile radio communication of the employing atm link of being advised and PCM exchange.
Fig. 1 shows for example part of GSM net of a kind of mobile radio communication, this mobile radio communication in fact comprise with Fig. 5 a and 5b in the identical basic element of character, just in base station controller BSC, itself provide atm link and ATM to exchange here.
That is to say, the conventional PCM link between mobile services switching centre MSC and corresponding visitor location register VLR and the base station controller BSC no matter, still the conventional PCM link between base station controller BSC and the base station transceiver BTS all replaces with atm link.In addition, the center crosspoint among base station controller BSC such as the base station sub-system BSS also can be used to carry out the ATM exchange.
Fig. 2 is shown broadband cellular network device according to first preferred implementation with base station controller BSC.This equipment comprises that respectively a base station controller unit is that 1, one asynchronous communication mode in BSC unit is that ATM controller 2 and an asynchronous communication mode are ATM switch 3.
BSC unit 1 is connected with ATM controller 2, and can realize with the comprehensive implementation of the pure software of ordinary base station controller BSC, pure hardware or software/hardware.BSC unit 1 provides ordinary base station controller function such as handover processing, GSM signaling etc., if necessary, can also determine the independent interconnection of Traffic Channel or signaling channel.
BSC unit 1 is do not have the PCM flock-mate to change planes and the corresponding controller function with main difference part based on the base station controller of conventional PCM in BSC unit 1.But, in BSC unit 1, comprise being used for the device (not shown) that sends instructions to ATM controller 2.In this respect, BSC unit 1 can realize with the pure software implementation of simulation hardware controller function of base station, perhaps can realize with the comprehensive implementation of the part hardware that adopts the ordinary base station controller.
The atm link that ATM switch 3 is connected with each network element passes in and out ATM switch 3 at each input and output port place of ATM switch 3 respectively.Therefore, the major function of ATM switch 3 is that the pseudo channel (VC) that the input port place enters is connected to one or more pseudo channels that go out at its one or more output ports place.So ATM switch 3 performed port exchanges can be operated by multiple access, shown in the dotted line among the figure.
Fig. 3 shows the broadband cellular network device according to second execution mode.
Since BSC unit 1 and ATM switch 3 basically with above-mentioned first execution mode in used BSC unit 1 corresponding with ATM switch 3, therefore, this moment, the ATM controller 2 was divided into two functional layers.But, should be appreciated that the number of plies is not limited to 2, and can be any number of the function that is suitable for realizing that ATM controller 2 will be carried out.
Shown in the double-layer structure, ATM controller 2 comprises upper strata 2a and the 2b of lower floor.According to gsm system as the example of mobile radio communication, upper strata 2a constitutes the layer relevant with GSM, be responsible for conversion and other projects relevant of signaling, as shown in Figure 3, and indicate its port of the 2b of lower floor and/or pseudo channel in ATM switch 3, to be interconnected respectively or to be exchanged with GSM.Correspondingly, the 2b of lower floor will be responsible for other for example with the ATM switch related task, as the maintenance and the fault processing of ATM switch 3.
Fig. 4 is shown broadband cellular network device according to the 3rd execution mode with base station controller.
Since the BSC unit also with first execution mode in BSC unit 1 corresponding, therefore, here the ATM controller 2 of using general switch management protocol (GSMP) controller 2 to replace according to first and second execution modes, and ATM switch 3 can be used for the GSMP that supports that GSMP controller 2 is adopted.
Recently be a kind of puppy parc that is provided for controlling the interface of hardware based ATM switch 3 with reference to RFC1987 by " Internet Engineering Task Force " disclosed GSMP.GSMP allows controller to set up with discharging by ATM switch 3 to be connected, adds and deletes the leaf (leaves) that point-to-multipoint is connected, manages each port of ATM switch 3 and asks configuration information and statistics.
According to the 3rd execution mode, a kind of base station controller BSC based on ATM is provided, it comprises base station controller unit and GSMP switch, adopts the GSMP controller in the middle of both.This is configured to provide cheap again structure of quick while based on the base station controller BSC of ATM.In this structure, can be with the GSMP switch combination of BSC unit 1 with any kind of.Like this, just can use the hardware of various different manufacturers, and when additional base station transceiver BTS and transceiver (TRX) (not shown) are incorporated in base station sub-system BSS, can easily expand the capacity of facilities network.
Should be appreciated that above description and accompanying drawing only are intended to illustrate the present invention.Therefore, can also be applied in the network except GSM as an example according to equipment of the present invention.Preferred implementation of the present invention can also change in the scope of appended claims book.
Claims (8)
1. broadband cellular network device comprises:
A base station control unit (1) can be used for controlling the distribution of the asynchronous communication mode cellular services that is made of the asynchronous communication mode cell,
One be connected with described base station control unit (1) and by the asynchronous communication mode controller (2) of described base station control unit (1) control and
One is connected with described asynchronous communication mode controller (2) and by the asynchronous communication mode switch (3) of described asynchronous communication mode controller (2) control, can be used for exchanging the asynchronous communication mode cellular services.
2. equipment as claimed in claim 1, wherein, described base station control unit (1) provides arbitrary implementation or the comprehensive implementation of software/hardware in the software, hardware of controller function of base station, and comprise an asynchronous communication mode controller command device, can be used for sending instructions to asynchronous communication mode controller (2).
3. equipment as claimed in claim 1, wherein, asynchronous communication mode controller (2) is used to provide a kind of interface, and the command conversion that is used for base station controller unit (1) is sent is for to make asynchronous communication mode switch (3) make the order of switching motion.
4. equipment as claimed in claim 3, wherein, asynchronous communication mode controller (2) can adopt the signaling based on asynchronous communication mode, and the control command of the connection hardware of control asynchronous communication mode switch (3) can be provided.
5. as the described equipment in one of claim 3 or 4, wherein, asynchronous communication mode controller (2) can comprise at least two functional layers, a functional layer is the upper strata (2a) relevant with Cellular Networks, can be used for carrying out and the Cellular Networks function associated, and another functional layer is the lower floor (2b) relevant with asynchronous communication mode, can be used for carrying out and asynchronous communication mode switch function associated.
6. equipment as claimed in claim 5, wherein, the following functional layer (2b) of asynchronous communication mode controller (2) can be used to control the switching hardware of asynchronous communication mode switch (3).
7. equipment as claimed in claim 3, wherein, asynchronous communication mode controller (2) can be used as general switch management protocol (GSMP) controller, and wherein, asynchronous communication mode switch (3) can be used to support described general switch management protocol.
8. based on base station controller (BSC) used in the base station sub-system in the Cellular Networks of asynchronous communication mode (BSS), comprise as the described broadband cellular network device of one of above-mentioned claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97182500A CN1130935C (en) | 1997-12-30 | 1997-12-30 | broadband cellular network device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97182500A CN1130935C (en) | 1997-12-30 | 1997-12-30 | broadband cellular network device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1286880A true CN1286880A (en) | 2001-03-07 |
| CN1130935C CN1130935C (en) | 2003-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97182500A Expired - Fee Related CN1130935C (en) | 1997-12-30 | 1997-12-30 | broadband cellular network device |
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| Country | Link |
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| CN (1) | CN1130935C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1898971B (en) * | 2003-12-19 | 2010-10-06 | 艾利森电话股份有限公司 | Method, system and device to provide a continous wireless connection using a mobile station as relay |
-
1997
- 1997-12-30 CN CN97182500A patent/CN1130935C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1898971B (en) * | 2003-12-19 | 2010-10-06 | 艾利森电话股份有限公司 | Method, system and device to provide a continous wireless connection using a mobile station as relay |
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| Publication number | Publication date |
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| CN1130935C (en) | 2003-12-10 |
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Granted publication date: 20031210 Termination date: 20101230 |