CN100420236C - Switching system for WiMAX flows - Google Patents
Switching system for WiMAX flows Download PDFInfo
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- CN100420236C CN100420236C CNB2005100694193A CN200510069419A CN100420236C CN 100420236 C CN100420236 C CN 100420236C CN B2005100694193 A CNB2005100694193 A CN B2005100694193A CN 200510069419 A CN200510069419 A CN 200510069419A CN 100420236 C CN100420236 C CN 100420236C
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/18—Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals
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- H—ELECTRICITY
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- H—ELECTRICITY
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Abstract
The present invention relates to a switching system used for switching WiMAX flows, which has a core comprising a flow processing unit and a flow switching unit, the WiMAX flows forwarded by the flow processing unit can be received by the flow switching unit; source connection identities of the WiMAX flows can be switched into corresponding next hop connection identities; the switched WiMAX flows can be transferred to the flow processing unit through a set flow port. By using the present invention, switching techniques of the WiMAX flows can be adopted for supporting intercommunication among different WiMAX nodes only by defining mapping relations and switching relations between the switching system used for switching WiMAX flows and the WiMAX flows; a plurality of switching techniques can be unified into one switching technique, so that transmission parts of the WiMAX nodes can be simplified to reduce costs; the intercommunication among the different WiMAX nodes can be realized only by mapping the flows for two times, and accordingly transmission delay of the intercommunication among the WiMAX nodes can be shortened; in addition, the flow switching unit of the present invention is arranged inside a central switching board, so that the complexity of the WiMAX nodes can be decreased further to make processes of switching the WiMAX flows with large capacities possible.
Description
Technical field
The present invention relates to the communications field, relate in particular to the switching system of a kind of WiMAX of being used for stream exchange.
Background technology
802.16 (being commonly called as WiMAX) is first broadband wireless access standard.This standard has only defined physical layer and MAC layer.The MAC layer is divided into the specific convergence sub-layer of service, MAC common part sublayer again and encrypts the sublayer.This standard has only defined the specific convergence sub-layer of corresponding service, the undefined specific convergence sub-layer of service at TDM business or other access technology based on ATM with based on message (for example Ethernet and IP bag).
The WiMAX technology is based on the wireless access transmission technology of WiMAX Business Stream, and a major function of serving specific convergence sub-layer is the stream mapping.Though WiMAX is based on Business Stream, standard is not introduced the notion of stream exchange.
According to 802.16 standards, described WiMAX Business Stream is a kind of WiMAXMAC transmission service (promptly stream has directivity) that one-way transmission is provided, when stream is activated and one 16 CID (Connection Identifier; Connection identifier) mapping mutually.
The WiMAX system configuration of prior art one related to the present invention, as shown in Figure 1:
Existing WiMAX system comprises WiMAX base station 100, WiMAX subscriber station B200 and WiMAX subscriber station A300.
Described WiMAX base station 100 comprises Switching Module 110, stream mapping block 120, WiMAX stream processing unit 130;
If the WiMAX system supports ATM, Ethernet/IP or E1/T1 transmission, described Switching Module 110 generally includes atm switching module, MAC exchange/VLAN exchange/IP Switching Module and TDM Switching Module, carry out routing by these Switching Modules, to support the intercommunication between the different user station under the WiMAX base station, to support the intercommunication of 130 of wire transmission port (for example 100 m ethernet port, E1/T1 port) and WiMAX stream processing units.Except that ATM, Ethernet/IP or E1/T1 transmission technology,, need to increase other Switching Module if also support other wire transmission technology.
Described stream mapping block 120, corresponding to the specific convergence sub-layer of the service of 802.16 standards, the MAC common part sublayer of corresponding 802.16 standards of 802.16MAC processing unit and encryption sublayer.The type difference of the wire transmission technology of supporting according to system, its kind is also a lot.For example, if system supports the ATM wire transmission technology, then described stream mapping block is an ATM stream mapping block; If system supports the wire transmission technology of Ethernet, then described stream mapping block is an Ethernet/IP stream mapping block; If system supports the TDM wire transmission technology, then described stream mapping block is a TDM stream mapping block.
Described WiMAX stream processing unit 130 comprises 802.16 physical layer process subelements and 802.16MAC layer processing subelement.
Described WiMAX subscriber station B200 comprises stream processing unit 210 and stream mapping block 220;
Wherein said stream processing unit 210 comprises 802.16 physical layer process subelements and 802.16MAC layer processing subelement.
Described stream mapping block 220 is the same with the stream mapping block 120 in the described base station 100, and corresponding to the specific convergence sub-layer of the service of 802.16 standards, the 802.16MAC layer is handled the MAC common part sublayer of corresponding 802.16 standards of subelement and encrypted the sublayer.It also has many types according to the type difference of the wire transmission technology of system's support.
The module that comprises in described WiMAX subscriber station A300 and the described WiMAX subscriber station B200 is identical.
Below in conjunction with Fig. 1, sending out ethernet frame with ethernet user A to ethernet user B is that each intermodule carries out the process that information is transmitted in the existing WiMAX system of example explanation:
At first, the Ethernet stream mapping block of WiMAX subscriber station A is according to the source MAC and the VLAN sign of the Ethernet frame head of user A, with the ethernet frame of the user A WiMAX stream that to be mapped as a connection identifier be CID2, and described WiMAX stream is uploaded to the stream processing unit of subscriber station.
Then, after described stream processing unit is handled described WiMAX stream, be that the WiMAX of the CID2 wireless channel of flowing through is issued the WiMAX base station with connection identifier.
Subsequently, the stream processing unit of described WiMAX base station is that the WiMAX stream of CID2 is handled to described connection identifier, and is uploaded to the Ethernet stream mapping block of base station.
Then, the Ethernet of described base station stream mapping block is that the WiMAX stream of CID2 shines upon back ethernet frame with connection identifier, and sends it to MAC/VLAN/IP Switching Module.
When the base station confirms that user A carries out business of networking, then described ethernet frame is exchanged to higher level's treatment facility and handle by the MAC/VLAN/IP Switching Module.
When the business intercommunication of user A execution and user B is confirmed in the base station, according to 802.16 standards, the WiMAX Business Stream is a kind of WiMAX MAC transmission service (promptly stream has directivity) that one-way transmission is provided, and therefore described MAC/VLAN/IP Switching Module exchanges to described ethernet frame another Ethernet stream mapping block of base station.
Then, another Ethernet stream mapping block of base station is according to the target MAC (Media Access Control) address and the VLAN sign of Ethernet frame head, ethernet frame is mapped as another WiMAX stream (identifying with CID1), and the flow data that will be designated CID1 is issued the stream processing unit of WiMAX subscriber station B through wireless channel.
After the stream processing unit of described WiMAX subscriber station B is handled described ethernet frame, send the Ethernet stream mapping block of WiMAX subscriber station A to.
At last, through the Ethernet of WiMAX subscriber station B stream mapping block WiMAX being flowed CID1 shines upon back ethernet frame and passes to user B.
By the technical scheme of above-mentioned prior art as can be seen, when prior art is supported the wire transmission technology of Ethernet, need net frame too to be exchanged, thereby can realize the intercommunication between the different user station under the WiMAX system, or realize the business of user's online through the MAC/VLAN/IP Switching Module.
When if prior art need be supported another wire transmission technology,, then need atm switching module that ATM cell is exchanged as ATM.
The WiMAX system configuration of the prior art two relevant with the present invention, as shown in Figure 2, system's difference in this system and the prior art one is: this system is arranged on the various big capacity Switching Module that is arranged on the supporting business exchange in the WiMAX base station in the prior art one in the center power board 500 outside the WiMAX base station, interconnects by backboard between described center power board 500 and WiMAX base station.The stream transmission relation of each intermodule of system duplicates in prior art one, is not described in detail.
By the technical scheme of prior art as can be seen, it has the following disadvantages:
1, every increase supports a kind of wire transmission technology will increase a kind of Switching Module newly, and autgmentability is poor.
2, the wire transmission technology kind of Zhi Chiing is many more, and the Switching Module kind that needs is also just many more, thereby makes the wire transmission of WiMAX base station partly become complicated, and the interconnection line is many, the cost height.
3, in order to support the intercommunication between different WiMAX subscriber stations, user data package or traffic frame etc. need be through four times stream mapping process and operation exchange processes once, so transmission delay is bigger.
Summary of the invention
The switching system that the purpose of this invention is to provide the exchange of a kind of WiMAX of being used for stream is by the invention solves the problem of system extension difference in the prior art; Solved because the wire transmission technology kind of supporting is many more, the Switching Module kind that needs is also just many more and cause the wire transmission of WiMAX base station partly to become complicated, and the interconnection line is many, the problem that cost is high; Solved in the prior art in order to support the intercommunication between WiMAX different user station, user data package or traffic frame etc. need cause the bigger problem of transmission delay through four stream mapping process and operation exchange process once.
The objective of the invention is to be achieved through the following technical solutions:
A kind of switching system that is used for the exchange of WiMAX stream provided by the invention comprises:
Stream processing unit is used for handling and forwarding WiMAX stream; This stream processing unit comprises: first-class processing unit, and the WiMAX that receiving end/sending end transmits flows, and described WiMAX is spread give described stream crosspoint; Second stream processing unit receives the WiMAX stream that described stream crosspoint transmits, and the described WiMAX after described WiMAX stream is handled and will be handled spreads and gives receiving terminal;
The stream crosspoint, be used for receiving the WiMAX stream that described stream processing unit is transmitted by the flow port of setting, and with the source connection identifier of described WiMAX stream is exchanged for described source connection identifier next jumps connection identifier, and spread by the flow port the set WiMAX after with described exchange and to give described stream processing unit.
Described first-class processing unit is according to the flow port of the source connection identifier correspondence of the WiMAX stream that receives, and described WiMAX spread give described stream crosspoint.
Wherein, the flow port between described stream crosspoint and described stream processing unit defines according to the Radio Resource of system's support.
Wherein, described Radio Resource comprise following any one or multiple: WiMAX website, sector, frequency and/or subchannel.
Wherein, described switching system also comprises:
Transmitting terminal stream map unit and transmitting terminal stream processing unit;
Described transmitting terminal stream map unit, be used for traffic frame, packet, cell or time slot that the receiving end/sending end user sends, and be corresponding WiMAX stream with described traffic frame, packet, cell or time slot mapping, described WiMAX is spread give the transmitting terminal stream processing unit then;
Described transmitting terminal stream processing unit is used for the WiMAX stream that receiving end/sending end stream map unit transmits, and sends to described first-class processing unit after described WiMAX stream handled.
Wherein, described switching system also comprises:
Receiving terminal stream processing unit and receiving terminal stream map unit;
Described receiving terminal stream processing unit is used to receive the WiMAX stream that described second stream processing unit transmits, and after described WiMAX stream is handled, sends described receiving terminal stream map unit to;
Described receiving terminal stream map unit is used to receive the WiMAX stream that described receiving terminal stream processing unit transmits, and described WiMAX stream is mapped as corresponding business frame, packet, cell or time slot, sends the receiving terminal user to.
Wherein, described transmitting terminal stream processing unit, first-class processing unit, second stream processing unit and receiving terminal stream processing unit comprise MAC layer processing subelement and physical layer process subelement respectively;
The MAC layer of described transmitting terminal stream processing unit is handled the WiMAX stream that subelement receiving end/sending end stream map unit sends, and communicates with the physical layer process subelement of transmitting terminal stream processing unit; The physical layer process subelement of described transmitting terminal stream processing unit communicates by the physical layer process subelement of wireless channel and described first-class processing unit; The physical layer process subelement of described first-class processing unit and the MAC layer of first-class processing unit are handled subelement and are communicated; The MAC layer of described first-class processing unit is handled subelement and described stream crosspoint communicates;
The physical treatment subelement that the MAC layer of described second stream processing unit is handled subelement and the described stream crosspoint and second stream processing unit communicates; The physical treatment subelement of described second stream processing unit communicates by the physical treatment subelement of wireless channel and described receiving terminal stream processing unit; The physical treatment subelement of described receiving terminal stream processing unit and the MAC layer of receiving terminal stream processing unit are handled subelement and are communicated; The MAC layer of described receiving terminal stream processing unit handles subelement and receiving terminal stream map unit communicates.
Wherein, described switching system also comprises the first-class map unit and/or the second stream map unit, is used for receiving the WiMAX stream that described stream crosspoint transmits by the flow port of setting, and the mapping of described WiMAX stream postbacked sending end user's traffic frame, send to higher level's processing unit then.
Wherein, the flow port between described stream crosspoint and described first-class map unit and/or the second stream map unit defines according to the external cable port of stream map unit.
Wherein, described stream crosspoint, described first-class processing unit, second stream processing unit, and the first-class map unit and/or the second stream map unit are arranged in the interface board;
Or,
Described stream crosspoint is arranged in the power board of center, described first-class processing unit, second stream processing unit, and the described first-class map unit and/or the second stream map unit are separately positioned in the interface board; Described center power board and described interface board interconnect by core bus.
As seen from the above technical solution provided by the invention, the present invention includes stream processing unit and stream crosspoint; Described stream crosspoint receives the WiMAX stream that described stream processing unit is transmitted by the flow port of setting, and with the source connection identifier of described WiMAX stream is exchanged for described source connection identifier next jumps connection identifier, and spread by the flow port the set WiMAX after with described exchange and to give described stream processing unit, by the present invention, multiple switching technology unification can be a kind of switching technology, thereby make the wire transmission of WiMAX base station partly obtain simplifying, the interconnection line is few, has reduced cost; Only need define the mapping relations and the commutative relation of itself and WiMAX stream by the present invention, just can support the internodal intercommunication of different WiMAX, or user's business of networking, so system has favorable expansibility; By the present invention, only need to flow exchange with a WiMAX and just can realize the internodal intercommunication of different WiMAX, thereby reduced the different internodal intercommunication transmission delays of WiMAX through twice stream mapping.
Description of drawings
Fig. 1 is the WiMAX system configuration schematic diagram of prior art one;
Fig. 2 is the WiMAX system configuration schematic diagram of prior art two;
Fig. 3 is the system configuration schematic diagram of first embodiment of the invention;
Fig. 4 is the system configuration schematic diagram of second embodiment of the invention.
Embodiment
The invention provides the switching system that is used for the exchange of WiMAX stream, its core comprises: stream processing unit is used for handling and forwarding WiMAX stream; Described stream crosspoint receives the WiMAX stream that described stream processing unit is transmitted by the flow port of setting, and with the source connection identifier of described WiMAX stream is exchanged for described source connection identifier next jumps connection identifier, and spread by the flow port the set WiMAX after with described exchange and to give described stream processing unit.
First embodiment provided by the invention is as shown in Figure 3:
This system comprises node A410, Node B 420, node C430.
Described node A410 comprises stream map unit 411 and stream processing unit 412;
Described Node B 420 comprises stream map unit 421 and stream processing unit 422;
Described node C430 comprises first-class processing unit 431, stream crosspoint 432, second stream processing unit 433, first-class map unit 434 and the second stream map unit 435, and it all is arranged in the same WiMAX interface board.
Wherein, each stream map unit 440 comprises each stream map unit of the wire transmission technology that system supports, as Ethernet/IP stream map unit, ATM stream map unit, TDM stream map unit and/or other stream map unit.Each WiMAX stream processing unit includes 802.16 physical layer process subelements and the 802.16MAC layer is handled subelement.
Stream crosspoint 432 among the wherein said node C comprises a plurality of different flow ports, respectively with node C in the MAC layer of described first-class processing unit 431 handle subelement and first-class map unit 434 and the second stream map unit 435 and be connected.WiMAX stream crosspoint 432 can define by the external cable port of this node support with the flow port that the second stream map unit 435 is connected with first-class map unit 434; WiMAX stream crosspoint 432 can define according to the Radio Resources such as WiMAX website, sector, frequency and subchannel of system's support with 432 flow ports that are connected of the first-class processing unit 431 and second stream processing unit among the described node C.
For example, suppose that a WiMAX node C is the WiMAX base station, support a website, each website has 4 sectors, and there are two frequencies each sector, do not support subchannel, support two atm ports, two Ethernet interfaces, two e1 ports, then can do as shown in Table 1 definition of WiMAX flow port and planning, flow port number available 4 bits are represented.
| The period of standing | Sector number | Frequency point number | Atm port number | The ethernet side slogan | E1 port number | Flow port number (Port) |
| 1 | 1 | 1 | - | - | - | 0 |
| 1 | 1 | 2 | - | - | - | 1 |
| 1 | 2 | 1 | - | - | - | 2 |
| 1 | 2 | 2 | - | - | - | 3 |
| 1 | 3 | 1 | - | - | - | 4 |
| 1 | 3 | 2 | - | - | - | 5 |
| 1 | 4 | 1 | - | - | - | 6 |
| 1 | 4 | 2 | - | - | - | 7 |
| - | - | - | 1 | - | - | 8 |
| - | - | - | 2 | - | - | 9 |
| - | - | - | - | 1 | - | 10 |
| - | - | - | - | 2 | - | 11 |
| - | - | - | - | - | 1 | 12 |
| - | - | - | - | - | 2 | 13 |
Table one
Wherein each stream processing unit comprises 802.16MAC layer processing subelement and 802.16 physical layer process subelements respectively.
The 802.16MAC layer of the stream processing unit 412 among the described node A410 is handled the WiMAX stream that the stream map unit 411 among the subelement receiving node A410 sends, and communicates with 802.16 physical layer process subelements of stream processing unit 412; 802.16 physical layer process subelements of described stream processing unit 412 communicate by 802.16 physical layer process subelements of the first-class processing unit 431 among wireless channel and the described node C430; The 802.16 physical layer process subelements of described first-class processing unit 431 and the 802.16MAC layer of first-class processing unit 431 are handled subelement and are communicated; The 802.16MAC layer of described first-class processing unit 431 is handled subelement and described stream crosspoint communicates.
The 802.16 physical layer process subelements that the 802.16MAC layer of described second stream processing unit 431 is handled second stream processing unit 433 among subelement and described stream crosspoint and the node C430 communicate; 802.16 physical layer process subelements of described second stream processing unit 433 communicate by 802.16 physical layer process subelements of the stream processing unit 422 in wireless channel and the described Node B 420; The 802.16 physical layer process subelements of described stream processing unit 422 and the 802.16MAC layer of stream processing unit 422 are handled subelement and are communicated; The stream map unit 421 that the 802.16MAC layer of described stream processing unit 422 is handled in subelement and the Node B 420 communicates.
When Business Stream was set up, WiMAX system node C at first distributed the CID (connection identifier) of the Business Stream of transmitting terminal user A and receiving terminal user B, set up the stream mapping table.And in CID allocation, configuration CID and the mapping relations that flow destination interface set up the stream swap table.
Situation when still illustrating that in conjunction with Fig. 3 application is of the present invention.
At first describe and utilize the present invention to realize the situation of business intercommunication between different nodes, suppose to see node A420 as transmitting terminal, Node B is seen receiving terminal as, utilizes the present invention to realize that the process of business intercommunication between different nodes is as follows:
User A sends traffic frame, packet, cell or time slot to node A420
It is the WiMAX Business Stream with described traffic frame, packet, cell or time slot mapping that described node A420 looks into the stream mapping table by its stream map unit 421, the CID of the CID of described WiMAX Business Stream for distributing to transmitting terminal user A, as CID2, and send corresponding stream processing unit 422 to.
After described stream processing unit 422 was successively handled subelement and the processing of 802.16 physical layer process subelements by the 802.16MAC layer, (CID of the CID of WiMAX Business Stream for distributing to transmitting terminal user A) sent to node C430 with the WiMAX Business Stream after handling.
802.16 physical layer process subelements of the first-class processing unit 431 among the described node C430 receive described WiMAX Business Stream (CID of the CID of WiMAX Business Stream for distributing to transmitting terminal user A) by wireless channel, be sent to 802.16MAC layer processing subelement after the processing and handle, and the WiMAX Business Stream of handling after subelement will be handled through the 802.16MAC layer sends stream crosspoint 432 to.
After described stream crosspoint 432 receives described WiMAX Business Stream (CID of WiMAX Business Stream is for giving the transmitting terminal user A CID of distribution) by flow port (Port2) definition and 431 of first-class processing units, at first, according to the search of the CID the mac frame head of the described WiMAX Business Stream of coming in stream swap table, obtain stream destination interface and next jumping CID of this CI D correspondence from flow port; Then according to described next jump CID whether effectively decision whether revise CID in the mac frame head, if next jumps CID, as CID1, in the CID value scope of distributing to receiving terminal, illustrate that then its CID value is effective, so the CID in the mac frame head of WiMAX Business Stream is exchanged for the CID that distributes to the receiving terminal user, as CID2 is exchanged for CID1, the WiMAX Business Stream after will exchanging then (CID of WiMAX Business Stream is CID1) sends second stream processing unit 433 among the node C to from the flow port (as the Port1 the figure) of correspondence.
Described second stream processing unit 433 receives described WiMAX Business Stream (CID of WiMAX Business Stream is CID1), earlier after after 802.16MAC layer processing subelement and the processing of 802.16 physical layer process subelements, send to Node B 410 through wireless channel.
Described Node B 410 stream processing units 412 receive described WiMAX Business Stream (CID of WiMAX Business Stream is CID1) through wireless channel, earlier after after 802.16 physical layer process subelements and 802.16MAC layer handle subelement and handle, send to corresponding stream map unit 411.
Described stream map unit 411 is looked into the stream mapping table described WiMAX Business Stream (CID of WiMAX Business Stream is CID1) is mapped as corresponding business frame, packet, cell or time slot, and sends it to user B.
Foregoing description utilize the present invention to realize the situation of business intercommunication between different nodes.Still utilize the present invention to realize the situation that the user surfs the Net in conjunction with Fig. 3 explanation below.
Suppose that transmitting terminal user A sends traffic frame, packet, cell or time slot to node A.
Suppose that transmitting terminal user A sends traffic frame, packet, cell or time slot to node A420.
It is the WiMAX Business Stream with described traffic frame, packet, cell or time slot mapping that described node A420 looks into the stream mapping table by its stream map unit 421, the CID of the CID of described WiMAX Business Stream for distributing to transmitting terminal user A, as CID2, and send corresponding stream processing unit 422 to.
After described stream processing unit 422 was successively handled subelement and the processing of 802.16 physical layer process subelements by the 802.16MAC layer, (CID of the CID of WiMAX Business Stream for distributing to transmitting terminal user A) sent to node C430 with the WiMAX Business Stream after handling.
802.16 physical layer process subelements of the first-class processing unit 431 among the described node C430 receive described WiMAX Business Stream (CID of the CID of WiMAX Business Stream for distributing to transmitting terminal user A) by wireless channel, be sent to 802.16MAC layer processing subelement after the processing and handle, and the WiMAX Business Stream of handling after subelement will be handled through the 802.16MAC layer sends stream crosspoint 432 to.
As described in described stream crosspoint 432 receives by flow port (as Port2 flow port among Fig. 3) definition and 431 of first-class processing units behind the WiMAX Business Stream (CID of WiMAX Business Stream is for giving the transmitting terminal user A CID of distribution), at first, according to the search of the CID the mac frame head of the described WiMAX Business Stream of coming in stream swap table, obtain stream destination interface and next jumping CID of this CID correspondence from flow port; Then according to described next jump CID whether effectively decision whether revise CID in the mac frame head, if next jumps CID not in the CID value scope of distributing, then illustrate described next to jump CID invalid, so send described WiMAX Business Stream (CID of WiMAX Business Stream is for giving the transmitting terminal user A CID of distribution) to the higher level treatment facility from the flow port (as the Port10 flow port Fig. 3) of correspondence.
Corresponding to the first embodiment of the present invention, can only adopt first-class processing unit 431 among first embodiment or any one in second stream processing unit 433 to finish the function of the first-class processing unit 431 and second stream processing unit 433; The function that also can only adopt first-class map unit 434 among first embodiment or second stream any one in the map unit 435 to finish the first-class map unit 434 and the second stream map unit 435.
The second embodiment of the present invention, as shown in Figure 4, the difference of the scheme of itself and first embodiment is:
This programme no longer is arranged on described first-class processing unit, second stream processing unit, stream crosspoint and first-class map unit and the second stream map unit in the same interface board of node C.In a second embodiment, the stream crosspoint is arranged in the center power board 510 of node C, described first-class processing unit is separately positioned in the interface boards different among the node C with second stream processing unit, first-class map unit and the second stream map unit, as the first-class map unit and the second stream map unit are arranged in the wireline interface plate, the first-class processing unit and second stream processing unit are arranged in the WiMAX wireless interface oralia.
The WiMAX of center power board stream crosspoint supports between wired or WiMAX wireless interface oralia, the operation exchange between wired and WiMAX wireless interface oralia.
Situation during Application Example two and first embodiment are identical, are not described in detail.
The difference of the 3rd embodiment provided by the invention and first embodiment is: do not comprise the first-class map unit and the second stream map unit in the interface board of node C, for the stream crosspoint, only dispose it and be arranged on first-class processing unit in the interface board and the flow port between second stream processing unit, as Port1 among the figure and Port2 flow port.
The difference of the 4th embodiment provided by the invention and second embodiment is: do not comprise the first-class map unit and the second stream map unit, and the interface board that described stream map unit is set, for the stream crosspoint, only dispose the flow port between itself and the first-class processing unit and second stream processing unit.
When Application Example three and embodiment four, the user can only realize the business intercommunication between the different user station.Associated description among the specific implementation process and first embodiment is identical, is not described in detail.
As seen from the above technical solution provided by the invention, system of the present invention comprises stream processing unit and stream crosspoint; Described stream crosspoint receives the WiMAX stream that described stream processing unit is transmitted by the flow port of setting, and with the source connection identifier of described WiMAX stream is exchanged for described source connection identifier next jumps connection identifier, and spread by the flow port the set WiMAX after with described exchange and to give described stream processing unit; By the present invention, only needing to have realized definition its with the mapping table and the swap table of WiMAX stream, just can adopt the internodal intercommunications of WiMAX stream switching technology exchange support WiMAX difference; And multiple switching technology unification can be a kind of switching technology, thus make the hop of WiMAX node, as the wire transmission part of WiMAX base station, obtain simplifying, the interconnection line is few, has reduced cost; And only need just can realize the internodal intercommunication of different WiMAX, thereby reduced the internodal intercommunication transmission delay of different WiMAX through twice stream mapping.
In embodiment two, the introducing of center power board has further reduced the complexity of WiMAX interface board in addition, and the center power board also makes the exchange of jumbo WiMAX stream become possibility.
The above; only be the preferable embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement; as; be not limited to described stream crosspoint; stream map unit or stream processing unit are arranged in same interface board of node; or be not limited to described stream crosspoint; stream map unit or stream processing unit are arranged in the distinct interface plate; or be not limited to described stream crosspoint is arranged in the power board of center, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (10)
1. a switching system that is used for the exchange of WiMAX stream is characterized in that, comprising:
Stream processing unit is used for handling and forwarding WiMAX stream; This stream processing unit comprises: first-class processing unit, and the WiMAX that receiving end/sending end transmits flows, and described WiMAX is spread give described stream crosspoint; Second stream processing unit receives the WiMAX stream that described stream crosspoint transmits, and the described WiMAX after described WiMAX stream is handled and will be handled spreads and gives receiving terminal;
The stream crosspoint, be used for receiving the WiMAX stream that described stream processing unit is transmitted by the flow port of setting, and with the source connection identifier of described WiMAX stream is exchanged for described source connection identifier next jumps connection identifier, and spread by the flow port the set WiMAX after with described exchange and to give described stream processing unit.
2. switching system according to claim 1 is characterized in that,
Described first-class processing unit is according to the flow port of the source connection identifier correspondence of the WiMAX stream that receives, and described WiMAX spread give described stream crosspoint.
3. switching system according to claim 2 is characterized in that, the flow port between described stream crosspoint and described stream processing unit defines according to the Radio Resource of system's support.
4. switching system according to claim 3 is characterized in that, described Radio Resource comprise following any one or multiple: WiMAX website, sector, frequency and subchannel.
5. switching system according to claim 4 is characterized in that, also comprises:
Transmitting terminal stream map unit and transmitting terminal stream processing unit;
Described transmitting terminal stream map unit, be used for traffic frame, packet, cell or time slot that the receiving end/sending end user sends, and be corresponding WiMAX stream with described traffic frame, packet, cell or time slot mapping, described WiMAX is spread give the transmitting terminal stream processing unit then;
Described transmitting terminal stream processing unit is used for the WiMAX stream that receiving end/sending end stream map unit transmits, and sends to described first-class processing unit after described WiMAX stream handled.
6. switching system according to claim 4 is characterized in that, also comprises:
Receiving terminal stream processing unit and receiving terminal stream map unit;
Described receiving terminal stream processing unit is used to receive the WiMAX stream that described second stream processing unit transmits, and after described WiMAX stream is handled, sends described receiving terminal stream map unit to;
Described receiving terminal stream map unit is used to receive the WiMAX stream that described receiving terminal stream processing unit transmits, and described WiMAX stream is mapped as corresponding business frame, packet, cell or time slot, sends the receiving terminal user to.
7. switching system according to claim 6 is characterized in that:
Described transmitting terminal stream processing unit, first-class processing unit, second stream processing unit and receiving terminal stream processing unit comprise MAC layer processing subelement and physical layer process subelement respectively;
The MAC layer of described transmitting terminal stream processing unit is handled the WiMAX stream that subelement receiving end/sending end stream map unit sends, and communicates with the physical layer process subelement of transmitting terminal stream processing unit; The physical layer process subelement of described transmitting terminal stream processing unit communicates by the physical layer process subelement of wireless channel and described first-class processing unit; The physical layer process subelement of described first-class processing unit and the MAC layer of first-class processing unit are handled subelement and are communicated; The MAC layer of described first-class processing unit is handled subelement and described stream crosspoint communicates;
The physical treatment subelement that the MAC layer of described second stream processing unit is handled subelement and the described stream crosspoint and second stream processing unit communicates; The physical treatment subelement of described second stream processing unit communicates by the physical treatment subelement of wireless channel and described receiving terminal stream processing unit; The physical treatment subelement of described receiving terminal stream processing unit and the MAC layer of receiving terminal stream processing unit are handled subelement and are communicated; The MAC layer of described receiving terminal stream processing unit handles subelement and receiving terminal stream map unit communicates.
8. according to any described switching system of claim 2 to 6, it is characterized in that:
Also comprise the first-class map unit and/or the second stream map unit, be used for receiving the WiMAX stream that described stream crosspoint transmits, and described WiMAX is flowed the traffic frame that mapping postbacks the sending end user, send to higher level's processing unit then by the flow port of setting.
9. switching system according to claim 8 is characterized in that:
Flow port between described stream crosspoint and described first-class map unit and/or the second stream map unit defines according to the external cable port of stream map unit.
10. switching system according to claim 9 is characterized in that:
Described stream crosspoint, described first-class processing unit, second stream processing unit, and the first-class map unit and/or the second stream map unit are arranged in the interface board;
Or,
Described stream crosspoint is arranged in the power board of center, described first-class processing unit, second stream processing unit, and the described first-class map unit and/or the second stream map unit are separately positioned in the interface board; Described center power board and described interface board interconnect by core bus.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100694193A CN100420236C (en) | 2005-04-29 | 2005-04-29 | Switching system for WiMAX flows |
| PCT/CN2006/000824 WO2006116923A1 (en) | 2005-04-29 | 2006-04-27 | A SWITCH SYSTEM AND METHOD FOR SWITCHING A WiMAX STREAM |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100694193A CN100420236C (en) | 2005-04-29 | 2005-04-29 | Switching system for WiMAX flows |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1855882A CN1855882A (en) | 2006-11-01 |
| CN100420236C true CN100420236C (en) | 2008-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100694193A Expired - Fee Related CN100420236C (en) | 2005-04-29 | 2005-04-29 | Switching system for WiMAX flows |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100420236C (en) |
| WO (1) | WO2006116923A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100450082C (en) * | 2005-06-30 | 2009-01-07 | 华为技术有限公司 | Exchange system for WiMAX steam exchanging |
| US8036670B2 (en) * | 2006-12-29 | 2011-10-11 | Intel Corporation | Method and apparatus for concurrent WiMAX and GSM operation |
| CN101287289B (en) * | 2007-04-10 | 2013-03-27 | 中兴通讯美国公司 | Signaling in convergence sublayer in WiMAX |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999007180A2 (en) * | 1997-07-14 | 1999-02-11 | Nokia Networks Oy | Switching fabric arrangement with re-sequencing memory |
| WO1999011005A1 (en) * | 1997-08-28 | 1999-03-04 | Ascend Communications, Inc. | Independently sizable memory pages for a plurality of connection id types in a network switch |
| US20030147385A1 (en) * | 2002-01-28 | 2003-08-07 | Armando Montalvo | Enterprise switching device and method |
| US20030154259A1 (en) * | 2002-02-08 | 2003-08-14 | Marc Lamberton | Method of providing a virtual private network service through a shared network, and provider edge device for such network |
| CN1471282A (en) * | 2002-07-24 | 2004-01-28 | 华为技术有限公司 | Message transmitting method based on multi-protocol tag exchange network |
| CN1889513A (en) * | 2005-06-30 | 2007-01-03 | 华为技术有限公司 | Exchange system for WiMAX steam exchanging |
-
2005
- 2005-04-29 CN CNB2005100694193A patent/CN100420236C/en not_active Expired - Fee Related
-
2006
- 2006-04-27 WO PCT/CN2006/000824 patent/WO2006116923A1/en not_active Application Discontinuation
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999007180A2 (en) * | 1997-07-14 | 1999-02-11 | Nokia Networks Oy | Switching fabric arrangement with re-sequencing memory |
| WO1999011005A1 (en) * | 1997-08-28 | 1999-03-04 | Ascend Communications, Inc. | Independently sizable memory pages for a plurality of connection id types in a network switch |
| US20030147385A1 (en) * | 2002-01-28 | 2003-08-07 | Armando Montalvo | Enterprise switching device and method |
| US20030154259A1 (en) * | 2002-02-08 | 2003-08-14 | Marc Lamberton | Method of providing a virtual private network service through a shared network, and provider edge device for such network |
| CN1471282A (en) * | 2002-07-24 | 2004-01-28 | 华为技术有限公司 | Message transmitting method based on multi-protocol tag exchange network |
| CN1889513A (en) * | 2005-06-30 | 2007-01-03 | 华为技术有限公司 | Exchange system for WiMAX steam exchanging |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2006116923A1 (en) | 2006-11-09 |
| CN1855882A (en) | 2006-11-01 |
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