CN1243401A - Communication system using chrysanthemum chain and testing method thereof - Google Patents
Communication system using chrysanthemum chain and testing method thereof Download PDFInfo
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- CN1243401A CN1243401A CN99109510A CN99109510A CN1243401A CN 1243401 A CN1243401 A CN 1243401A CN 99109510 A CN99109510 A CN 99109510A CN 99109510 A CN99109510 A CN 99109510A CN 1243401 A CN1243401 A CN 1243401A
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- bts
- communication system
- daisy chain
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0652—Feedback error handling
- H04B7/0656—Feedback error handling at the transmitter, e.g. error detection at base station
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Provided is a mobile communication system which comprises a plurality of BTS connected to each other through a trunk line and in chrysanthemum chain mode, wherein each BTS has an identifiable address; and BSC connected to the most foregoing BTS in chrysanthemum chain and used for controlling a plurality of BTS in chrysanthemum chain. Provided also is a method for testing said communication system.
Description
That the application requires is that on June 2nd, 1998 submitted to korean industrial property office, application serial no is 1998-20390, name is called the priority of the application of " communication system and the method for testing (Communication System Utilizing Daisy Chain Mode and Testing MethodThereof) thereof of using the daisy chain pattern ", here in conjunction with it content as a reference.
The present invention relates to a kind of communication system, and be particularly related to a kind of communication system of daisy chain and method of test daisy chain used.Especially, the present invention relates to have the communication system of linking the daisy chain type BTS (base transceiver station) of BSC (base station controller) by a root relay line, be used for effectively utilizing all told of trunk line.
In cell mobile communication systems, whole overlay area is divided into many sub-districts of the BS (base station) that wherein all has each medium and small overlay area, sub-district of a plurality of management.BS is by MSC (mobile switching centre) control, so that system user continues communication when moving into or shifting out a plurality of sub-districts.The benefit that the overlay area is divided into the sub-district is that the permission system re-uses the frequency that does not re-use in specific cell, increases the availability of frequency thus, so that hold a lot of users.
Cell mobile communication systems develops into digital TDMA (time division multiple access) and CDMA (code division multiple access) configuration from simulation AMPS (advanced mobile phone system) configuration.CDMA mobile communication system comprises BTS (base transceiver station), BSC (base station controller) that controls each BTS and the MSC that is connected PSTN (public switch telephone network) and BSC that serves the travelling carriage that moves in its overlay area.
As mentioned above, cell mobile communication systems is by whole overlay areas being divided into the sub-district and further being divided into sector cell and Microcell increases the availability of frequency, so that hold a lot of users.Typically, in sector cell is cut apart, by on each BTS of sub-district, distributing three antennas and be distinguished into three sectors for a short time with one with 120 degree angles.In Microcell was cut apart, by interconnection Microcells such as microwave waveguide, coaxial cables, Microcell partly covered the local call in the macro cell coverage area.
In star structure as shown in Figure 1, a plurality of BTS generally link BSC by trunk line, and each BTS covers a sub-district.BSC 100 sends to each BTS10-90 by each trunk line with the message grouping.In general, IPC (interprocessor communication) agreement of the not grouping of the E1 type of channelizing is used for effectively transmitting data by trunk line, and promptly every root relay line transmits packet according to the IPC agreement.As shown in Figure 1, BSC 100 directly links to each other with every BTS 10,20,30,40,50,60,70,80,90 with star structure by each trunk line.
United States Patent (USP) 3,693,155 disclose a kind of communication system, and this system has in groups a plurality of message platforms of arranging, a plurality of control desks of arranging in groups and the interference networks of pyramid (pyramid) structure that other message platform of each message platform and all is coupled.When using United States Patent (USP) 3,693,155 disclosed project organizations BSC to be linked BTS, effectively do not use the trunk line of each BTS being linked BSC by every root relay line.For example, the trunk line of BTS being linked for example E1 trunk line of BSC has the data capacity greater than BTS.The E1 trunk line also has the data capacity of about 90 channels except that the signaling grouping, and each BTS has the data capacity of about 20 Traffic Channels.
Therefore, need a kind of effective use specific BTS to be linked the mobile communication system project organization of optimum data capacity of every root relay line of BSC.
An object of the present invention is to provide the communication system of the optimum data capacity of the every root relay line of a kind of effective use, wherein each trunk line is linked BSC with specific BTS.
Another object of the present invention provides a kind of communication system, wherein only links BSC by top BTS in the daisy chain by trunk line with the BTS that daisy chaining links to each other.
Another purpose of the present invention provides a kind of method of testing each daisy chain type BTS in communication system.
According to an aspect of the present invention, provide a kind of mobile communication system, it has: by a plurality of BTS that trunk line is connected with each other with daisy chaining, each BTS has discernible address; With the BSC that links top BTS in the daisy chain, be used for controlling a plurality of BTS of daisy chain, this BSC also links MSC.
According to another aspect of the present invention, provide a kind of method of testing communication system, wherein communication system comprises: a plurality of BTS that are connected with each other with daisy chaining by trunk line; With the BSC that links top BTS in the daisy chain, be used for controlling a plurality of BTS of daisy chain, this method comprises the steps: to produce test packet on BSC; The test packet that emission is produced is given each BTS in the daisy chain, to test each among a plurality of BTS in the daisy chain; And loopback (loop back) test packet, so that test among a plurality of BTS each again.
According to a further aspect of the invention, a kind of method of testing communication system is provided, wherein communication system comprises: a plurality of BTS that are connected with each other with daisy chaining by trunk line, with the BSC that links top BTS in the daisy chain, be used for controlling a plurality of BTS of daisy chain, this method comprises the steps: to produce test packet on BSC; The test packet that emission is produced is given specific BTS in the daisy chain, with specific BTS in the test daisy chain; With the loopback test grouping, so that test specific BTS again.
With reference to the detailed description of accompanying drawing to the preferred embodiment of the present invention, above-mentioned purpose of the present invention, feature and advantage will become clearer, in the accompanying drawing:
Fig. 1 is that explanation has the schematic diagram of mobile communication system network of linking a plurality of BTS of BSC with star structure according to prior art;
Fig. 2 is that explanation has the schematic diagram of mobile communication system network of linking a plurality of BTS of BSC in the daisy chain structure mode according to the present invention;
Fig. 3 is the explanation schematic diagram that BTS connects in the daisy chain structure mode according to the present invention;
Fig. 4 is the daisy chain type BTS in a root relay line and virtual plan path is shared in explanation according to the present invention a schematic diagram; With
Fig. 5 is the schematic diagram that HINA (big capacity IPC gusset plate assembly) the node distribution that is used for daisy chain type BTS according to the present invention is described.
The preferred embodiments of the present invention are described below with reference to accompanying drawings.They in the following description, are not described in detail known function or structure, because will make the present invention fuzzy with unnecessary details.
With reference to Fig. 2, the mobile communication system network that has daisy chain type BTS according to of the present invention is described.As shown in the figure, in daisy chain, four BTS 60,70,80,90 are connected with each other by E1 trunk line 15, and top BTS in the daisy chain, and promptly BTS 60, link BSC 100.In addition, BTS 20 and 30, and 40 link to each other respectively and link BSC 100 by their top BTS with daisy chaining with 50.
The communications traffic capacity of E1 trunk line 15 approximately is 90 channels, and the capacity of BTS approximately is 20 channels.Therefore, according to following equation 1, in daisy chain, can connect four BTS at most.
Equation 1:
20 (traffic_channel (Traffic Channel)/BTS_link (link)) * 4 (BTS)
＝80(traffic_channel/link)≤90(traffic_channel/link)
Fig. 3 explanation has the mobile communication system of daisy chain type BTS according to the present invention connection.As shown in the figure, BSC 100,110 links BSM (base station manager) 200 by LCIN (link communication interface node assembly) 410,400 and GCIN (gateway communication interface node assembly) respectively.BTS 10,60 directly links BSC 100 by BCIN (base station communication interface node assembly) 500,510 via LCIN 410 respectively.Therefore, BTS 60 is top BTS among four BTS 60,70,80,90 of connecting of daisy chain type.The BTS 70,80,90 that daisy chain type connects links the BCIN 510,520,530 of the BTS 60,70,80 of front respectively by each BCIN520,530,540.
The BTS 60,70,80,90 that daisy chain type connects shares the trunk line that comprises line 1,2,3,4, but logically manages independently.That is, BTS 60,70,80,90 links to each other respectively by virtual route.Promptly, every group of daisy chain type BTS only links BSC100 by a root relay line, but because each BTS in the daisy chain has its address and BSC 100 to know each address, as if so each connection is a virtual route, and BSC 100 links each BTS by every virtual route.Therefore, for example the management of BTS 10 is identical with non-daisy chain type BTS basically in the management of each BTS 60,70,80,90.
Therefore, 410 couples of LCIN send to the address of the message grouping of the BTS 60,70,80,90 that daisy chain type connects and divide into groups, and these address transition are become virtual address, so that used by BCS 100.BTS only selects to have the message grouping that their addresses are virtual address from the address of grouping, so that receive the message grouping that belongs to them.In order to divide into groups, in LCIN 410, provide additional multiplexing equipment (not shown).
But, if the address of BTS has specific pattern, and in the BCIN of each BTS, might shelter processing, in LCIN 410, do not need the multiplexing of address so.BTS can shelter agreement by the address and select their message grouping.Table 1 expression has the pattern of the BTS address of screening ability.
Table 1: group with BTS address of screening ability.
The BTS address
BTS#0 XXX00XX
BTS#1 XXX01XX
BTS#2 XXX10XX
BTS#3 XXX11XX
It is as shown in the table, if specific 2 bits (00,01,10,11) of 8 bit BTS addresses can be used for discerning the BTS that 4 daisy chain types connect, the address of 2 bits that each BTS can be by sheltering respective specific knows whether corresponding grouping is its grouping so.
BTS not only has the message grouping that sends from BSC, also has the message grouping that is produced and sent to BSC by BTS.These message groupings should not send to next BTS, but send to BSC.Therefore, when sending message and divide into groups to next BTS, the address whether next or follow-up BTS of check simultaneously should receive message is sheltered and check and whether produces the compound of message by transmission BTS and shelter.Table 2 and table 3 are illustrated between BSC and the BTS or the address pattern that sends between each BTS.
Table 2: the example of pattern is sheltered in the address between BSC and BTS.
Node B (BSC_BTS)
NA (node address) 0x080CC0
MA (sheltering the address) 0xFC3FFF
CMA (the compound address of sheltering) 0x003F
Table 3: the example of pattern is sheltered in the address between each BTS.
Node B (BTS_BTS)
NA (node address) 0x080CC0
MA (sheltering the address) 0x0BFFFF
CMA (the compound address of sheltering) 0x000F
Now descriptive system is begun to load daisy chain type BTS 60,70,80,90.Owing to after previous BTS begins, begin each BTS 60,70,80,90, so system loading begins and order proceeds to next BTS the daisy chain from top BTS.
As the top HIPA (High Speed IP C processor module) 514 that loads BCIN 510 from the HIPA 414 of LCIN 410, and top HIPA 514 is when linking next BCIN 520 with HIMA (big capacity IPC gusset plate assembly) 512, load the HIPA 524 of next BTS 70, and then connected node HINA 522, or the like, up to being connected to HINA 532,542 nodes.By the connection of these nodes, load the BCP (BTS processor controls) of the corresponding BTS of control at random.
Because daisy chain type BTS links BSC by top BTS, when breaking down in the trunk line of BTS, just can not operate all follow-up BTS.Therefore, duplicate the trunk line that connects previous BTS and next BTS, so that when breaking down, keep the stability of system.
The method that test connects the mobile communication system trunk line of daisy chain type BTS will be described now.In the conventional method of test trunk, last channel in 32 channels of trunk line is used as test channel.But because in the present invention, the channel of distributing trunk line for each different BTS is so can not use above-mentioned method.
Therefore, the on-line testing of the BLNK of daisy chain (BTS link) replaces with existing online BLNK.In this method, in the HIPA 414 of LCIN 410, produce test packet, and in the HIPA 514,524,534,544 of each BCIN 510,520,530,540, carry out the test of trunk line and node by the corresponding test packet of loopback, i.e. the test of each BTS.When trunk line test can begin in system or during the system initialization, on time, periodically wait and carry out by the system administration manager appointment.
Fig. 4 represents to share according to the present invention the daisy chain type BTS of the trunk line that comprises virtual route.As shown in the figure, BTS0 60 links BSC 100 by path 01, and BTS1 70 links BTS0 60 by path 12, and BTS2 80 links BTS1 70 by path 23.By this way, just can not connect each BTS as long as do not exceed the capacity of trunk line.
There are two kinds of methods to come test trunk.The first, in the method for testing of whole loop, the test packet that produces among the BSC 100 is from last BTS or from first BTS loopback.At last, any one BTS is not promptly skipped in the grouping of order loopback test.The second, in the method for testing of single loop, the test packet that produces among the BSC100 is transmitted back to specific BTS by virtual route, and distributes specific BTS by system administration manager.
For example, when the single go-and-return test carried out BTS1 70, test packet sends to BTS1 70 by BTS0 60, and turns back to BSC 100 by BTS0 60 again.The test packet that the BSC check is returned.
By above-mentioned test, when going wrong in the trunk line, must use another trunk line.The trunk line that HINA two bridge circuits of 512,522,532,542 usefulness (bridge) management of BCIN 510,520,530,540 is duplicated.These two bridge circuits have four root relay lines, and promptly each bridge circuit has two root relay lines; A bridge circuit is used as the bridge circuit of activation, and another bridge circuit is used as standby bridge circuit.Fig. 5 represents that the node of the HINA of daisy chain type BTS distributes.As shown in the figure, trunk line 0 and trunk line 2 constitute bridge circuit 0, and trunk line 1 and trunk line 3 constitute bridge circuit 1.Duplicate bridge circuit 0 and bridge circuit 1, and when a bridge circuit is made mistakes therein, can use another bridge circuit.
Although represent and described the present invention, it will be appreciated by persons skilled in the art that the modification that under the prerequisite that does not exceed the spirit and scope of the present invention defined by the claims, to carry out aspect form and the details with reference to specific preferred embodiment.
Claims (19)
1. mobile communication system comprises:
The a plurality of BTS (base transceiver station) that are connected with each other with daisy chaining by at least one root relay line; With
Link foremost BTS in the daisy chain, be used for controlling the BSC (base station controller) of a plurality of BTS of daisy chain.
2. mobile communication system as claimed in claim 1, wherein each described BTS comprises a discernible address.
3. mobile communication system as claimed in claim 1, wherein said BSC links MSC (mobile switching centre).
4. mobile communication system as claimed in claim 2, wherein said BSC divides into groups to the address in the message grouping, and send described message and be grouped into described BTS, but each BTS only receives the message grouping that has corresponding to the address of the described identification address of described BTS selectively.
5. mobile communication system as claimed in claim 2, address in the grouping of wherein said BSC transmission message is to a plurality of BTS, among described a plurality of BTS each sheltered agreement by the address and come selective reception message grouping, and wherein each the described address in the message grouping has expression and should send corresponding message and be grouped into which pattern among described a plurality of BTS.
6. mobile communication system as claimed in claim 1, each among wherein said a plurality of BTS, and send any remaining message and divide into groups to the next BTS in the daisy chain from BSC selective reception message grouping by at least one root relay line.
7. mobile communication system as claimed in claim 1, each BTS among wherein said a plurality of BTS prevents that any message grouping that will be produced by described each BTS from sending to next BTS.
8. mobile communication system as claimed in claim 1, wherein each described BTS shelters agreement with the address and differentiates the described message grouping that is produced by described each BTS, to prevent that described message grouping is sent to next BTS, and each described message grouping has the address that expression produces the corresponding message grouping wherefrom.
9. mobile communication system as claimed in claim 1 comprises that also at least one duplicates trunk line, is used for when described at least one trunk line is made mistakes or described at least one trunk line when damaging, and connects described BTS with daisy chaining, so that use.
10. mobile communication system as claimed in claim 1 wherein during beginning from top BTS and proceeding to the system loading of each follow-up BTS the daisy chain, is loaded described a plurality of BTS.
11. the method for a testing communication system, this system comprise a plurality of BTS that are connected with each other with daisy chaining by trunk line and the BSC that is used for controlling a plurality of BTS of daisy chain that links foremost BTS in the daisy chain, this method comprises the steps:
On BSC, produce test packet:
The test packet that emission is produced is given each BTS in the daisy chain, with each BTS in the test daisy chain; With
Loopback test divides into groups, so that test each BTS among a plurality of BTS again.
12. method as claimed in claim 11, wherein order is carried out the step of loopback.
13. method as claimed in claim 11 is wherein carried out described method of testing during system initialization.
14. method as claimed in claim 11, wherein the time durations that distributes at system administration manager is carried out described method of testing.
15. method as claimed in claim 11, wherein the cycle of distributing according to system administration manager is periodically carried out described method of testing.
16. the method for a testing communication system, this system comprise a plurality of BTS that are connected with each other with daisy chaining by trunk line and the BSC that is used for controlling a plurality of BTS of daisy chain that links top BTS in the daisy chain, this method comprises the steps:
On BSC, produce test packet;
The test packet that emission is produced is given specific BTS in the daisy chain, with specific BTS in the test daisy chain; With
The loopback test grouping is so that test specific BTS again.
17. method as claimed in claim 16 is wherein carried out described method of testing during system initialization.
18. method as claimed in claim 16, wherein the time durations that distributes at system administration manager is carried out described method of testing.
19. method as claimed in claim 16, wherein the cycle of distributing according to system management is periodically carried out described method of testing.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20390/98 | 1998-06-02 | ||
| KR20390/1998 | 1998-06-02 | ||
| KR1019980020390A KR100298347B1 (en) | 1998-06-02 | 1998-06-02 | A communication system using daisy chained base stations and a test method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1243401A true CN1243401A (en) | 2000-02-02 |
| CN1173584C CN1173584C (en) | 2004-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB991095103A Expired - Fee Related CN1173584C (en) | 1998-06-02 | 1999-06-02 | Communication system using chrysanthemum chain and testing method thereof |
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| Country | Link |
|---|---|
| KR (1) | KR100298347B1 (en) |
| CN (1) | CN1173584C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1306843C (en) * | 2003-12-26 | 2007-03-21 | 中兴通讯股份有限公司 | Intelligent maintenance method for base station bundling relaton of local radio telephone system |
| CN100450074C (en) * | 2004-06-04 | 2009-01-07 | 华为技术有限公司 | Method for shared high data link controlling link transmission data during chain grouping network |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002325270A (en) * | 2001-04-26 | 2002-11-08 | Hitachi Kokusai Electric Inc | Radio system |
| KR102649291B1 (en) | 2023-08-30 | 2024-03-19 | 차오석 | Asphalt mixture composition |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR0173207B1 (en) * | 1995-12-14 | 1999-03-30 | 양승택 | Subscriber's line loop-back testing method of full electronic switching system |
| KR100245988B1 (en) * | 1997-06-27 | 2000-03-02 | 서평원 | Data stream controlling apparatus for constituting daisy-chain of base station |
-
1998
- 1998-06-02 KR KR1019980020390A patent/KR100298347B1/en not_active IP Right Cessation
-
1999
- 1999-06-02 CN CNB991095103A patent/CN1173584C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1306843C (en) * | 2003-12-26 | 2007-03-21 | 中兴通讯股份有限公司 | Intelligent maintenance method for base station bundling relaton of local radio telephone system |
| CN100450074C (en) * | 2004-06-04 | 2009-01-07 | 华为技术有限公司 | Method for shared high data link controlling link transmission data during chain grouping network |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1173584C (en) | 2004-10-27 |
| KR100298347B1 (en) | 2001-08-07 |
| KR20000000647A (en) | 2000-01-15 |
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