CN101001130B - Method and device for monitoring Iub interface packet-loss rate - Google Patents
Method and device for monitoring Iub interface packet-loss rate Download PDFInfo
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- CN101001130B CN101001130B CN200710002725A CN200710002725A CN101001130B CN 101001130 B CN101001130 B CN 101001130B CN 200710002725 A CN200710002725 A CN 200710002725A CN 200710002725 A CN200710002725 A CN 200710002725A CN 101001130 B CN101001130 B CN 101001130B
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Abstract
This invention provides a method for monitoring lost-packet rate of Iub interface including the following steps: marking message sequence number in the frame of the Iub interface and calculating the packet-lost rate based on the received message sequence number. This invention also provides a monitoring device for packet-lost rate so as to monitor the lost situation of service messages timely.
Description
Technical field
The present invention relates to the communications field, more specifically, relate to the monitoring method and the device of Iub interface packet loss.
Background technology
Along with WCDMA (Wideband CDMA, Wideband Code Division Multiple Access (WCDMA)) business development, especially HSDPA (High Speed Downlink Packet Access, high-speed down data inserts) and HSUPA (High Speed Uplink Packet Access, the high-speed down data access) maturation gradually, present ATM (Asynchronous TransferMode, asynchronous transfer mode) transmission can't have been satisfied the professional continuous growth and the needs of bandwidth, 3GPP (3rd Generation Partnership Project, the wireless co-operative project of the third generation) agreement suggestion ATM can progressively carry out the transition to the IP transmission.
Fig. 1 shows a WCDMA network architecture diagram in the correlation technique.In the construction of WCDMA, the IP transmission is most important to be exactly the IP transmission of Iub interface, that is: the bearer network between Node B and the RNC (Radiao Network Control, wireless network control).
It is QoS (Quality ofservice, service quality) problem that Iub interface adopts the ultimate challenge that runs into after the IP transmission, and operator needs in time to understand the situation of current network, such as having or not packet loss, packet loss as how.This monitors network in real time with regard to needs.Can QoS index that the effective monitoring Iub interface be the key factor of normally runing WCDMA.On the QOS of Iub interface monitoring scheme, a kind of prior art is the Ping scheme at present.
This scheme proposes, and RNC sends the situation that test packet comes monitor network by regularly sampling to each Node B.This test packet is not normal service message, but test packet is mixed in the normal service message, by the packet loss of control and measuring message, reflects the packet loss of regular traffic message indirectly, thereby embodies the actual state of network indirectly.
Yet there is following shortcoming in above-mentioned Ping scheme:
1, sends the QoS that PING bag (being test packet) is monitored IP network by sampling regularly, because the PING bag is not normal service message, so it is the actual service message of simulation just, fully the QoS situation of actual response practical business on IP network.
2, the PING scheme can only be tested RNC-〉Node B-〉packet loss on the whole loopback link of RNC, can not test RNC-respectively〉packet loss and the Node B-of Node B down link〉packet loss of RNC up link.
Summary of the invention
The present invention aims to provide the monitoring method and the device of Iub interface packet loss, realizes monitoring in real time the packet drop of each service message.
One embodiment of the present of invention provide a kind of Iub interface packet loss monitoring method, may further comprise the steps: identify test serial number in the frame of Iub interface; According to the test serial number statistics packet loss that receives.
An alternative embodiment of the invention provides a kind of Iub interface packet loss monitoring device, comprising: setup unit is used for identifying test serial number in the frame of Iub interface; Statistic unit is used for according to the test serial number statistics packet loss that receives.
By technique scheme, embodiments of the invention have been realized following technique effect:
Monitor the packet drop of each service message in real time, rather than come the indirectly testing network quality by test packet.
Thus, utilize this programme, under the IP of Iub transmission, can be respectively for the R99 speech business, the QOS quality of the different business of HSDPA, HSUPA is monitored, and reflects the situation of current network in real time, thereby realizes the real-time monitoring to the network QOS quality.
Description of drawings
Fig. 1 shows a WCDMA network architecture diagram in the correlation technique;
Fig. 2 shows the flow chart according to the Iub interface packet loss monitoring method of the embodiment of the invention;
Fig. 3 shows the block diagram according to the Iub interface packet loss monitoring device of the embodiment of the invention;
Fig. 4 shows the schematic diagram according to the Iub interface up link of the embodiment of the invention;
Fig. 5 shows the frame format of the up DCH (Dedicated TransportChannel, dedicated transmission channel) according to the embodiment of the invention;
Fig. 6 shows the flow chart according to the up packet loss monitoring method of the embodiment of the invention;
Fig. 7 shows the frame format according to the E-DCH of Iub interface up link under the situation of the HSUPA of the embodiment of the invention (Enhanced-DCH strengthens dedicated transmission channel);
Fig. 8 shows the block diagram according to the up packet loss monitoring device of the embodiment of the invention;
Fig. 9 shows the schematic diagram according to the Iub interface down link of the embodiment of the invention;
Figure 10 shows the frame format according to the descending DCH of the embodiment of the invention;
Figure 11 shows the flow chart according to the descending packet loss monitoring method of the embodiment of the invention;
Figure 12 shows the HS-DSCH frame format according to Iub interface down link under the situation of the HSDPA of the embodiment of the invention;
Figure 13 shows the block diagram according to the descending packet loss monitoring device of the embodiment of the invention.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
Embodiments of the invention provide a kind of Iub interface packet loss monitoring method, and Fig. 2 shows the flow chart according to the Iub interface packet loss monitoring method of the embodiment of the invention.As shown in Figure 2, may further comprise the steps:
Step S202 identifies test serial number in the frame of Iub interface; And
Step S204 adds up packet loss according to the test serial number that receives.
Frame can be up DCH of Iub interface or E-DCH frame, and transmitting terminal is Node B, and receiving terminal is RNC, and RNC adds up up packet loss according to the test serial number that receives on up link.
Frame also can be descending DCH of Iub interface or HS-DSCH frame, and transmitting terminal is RNC, and receiving terminal is Node B, and Node B adds up descending packet loss according to the test serial number that receives on down link.
Embodiments of the invention also provide a kind of Iub interface packet loss monitoring device 300, and Fig. 3 shows the block diagram according to the Iub interface packet loss monitoring device of the embodiment of the invention.As shown in Figure 3, comprising:
Similarly, frame can be up DCH of Iub interface or E-DCH frame in this device 300, and transmitting terminal is Node B, and receiving terminal is RNC, and RNC adds up up packet loss according to the test serial number that receives on up link; Frame also can be descending DCH of Iub interface or HS-DSCH frame, and transmitting terminal is RNC, and receiving terminal is Node B, and NodeB adds up descending packet loss according to the test serial number that receives on down link.
Iub interface packet loss monitoring device 300 can also comprise and report the unit (not shown), is used for descending packet loss with the statistic unit statistics and reports RNC and handle.
Below respectively with regard to of the present invention about up direction realization and describe about the embodiment of the realization of down direction.
Actual packet loss monitoring scheme according to the Iub interface up link under the IP transmission of the embodiment of the invention is at first described.Up link is meant: Node B-〉RNC, Fig. 4 shows the schematic diagram according to the Iub interface up link of the embodiment of the invention.
Fig. 5 shows the frame format of up DCH.
Fig. 6 shows the flow chart according to the up packet loss monitoring method of the embodiment of the invention, may further comprise the steps:
Step S602, Node B identifies test serial number in up DCH of Iub interface or E-DCH frame;
Step S604, RNC add up up packet loss according to the test serial number that receives on up link; And
Step S606, RNC with the packet loss statistical disposition after, report the backstage to handle, for example show.
Sign test serial number among the step S602 can have following several situation:
Identify test serial number in any position increase by 8 of the Spare of up DCH frame Extension the inside or the FSN (Frame sequence number, number of frames) (the perhaps sequence number of other bit wide) of 4bits.
The indicating range of 8 bits is 0～255, time interval TTI (the Transmission Time Interval of short transmission, the transmission intercal time) be 10ms, so be 256*10ms=2.56s the shortest circulation timei, just in one 0～255 circulation, can test the packet loss in the 2.56s time.Time delay between Node B and the RNC can not surpass 2.56s, so the not enough situation of this sequence number can not occur.
Fig. 7 shows the E-DCH frame format according to Iub interface up link under the situation of the HSUPA of the embodiment of the invention.As shown in the figure, second byte of E-DCH frame the inside has the FSN of 4 bits to identify test serial number.Can monitor 16 continuous messages and whether receive at most like this.
Node B can identify test serial number by the CFN (Connection FrameNumber, Connection Frame Number) that DCH frame the inside carries, and RNC can realize the monitoring to up packet loss.
Fig. 8 shows the block diagram according to the up packet loss monitoring device of the embodiment of the invention, comprising:
Up setup unit 802 is used for identifying test serial number in up DCH frame of Iub interface or E-DCH frame;
Up statistic unit 804 is used for adding up up packet loss according to the described test serial number that receives on up link.
Can also comprise reporting processing unit 806, be used for packet loss, report the backstage to handle up statistic unit 804 statistics.
Actual packet loss monitoring scheme according to the Iub interface down link under the IP transmission of the embodiment of the invention is described below.Down link is meant: RNC-〉Node B, Fig. 9 shows the schematic diagram according to the Iub interface down link of the embodiment of the invention.
Figure 10 shows the message format of DCH downlink frame.
Figure 11 shows the flow chart according to the descending packet loss monitoring method of the embodiment of the invention, may further comprise the steps:
Step S1102, RNC identifies test serial number in descending DCH of Iub interface or HS-DCH frame;
Step S1104, Node B add up descending packet loss according to the test serial number that receives on down link; And
Step S1106, Node B with the packet loss statistical disposition after, descending packet loss is reported RNC handles.Node B can report the down link packet loss by the DCH synchronization frame.
After reporting RNC and handling, can further include and report the backstage to carry out waiting the step of handling packet loss such as showing.
Sign test serial number among the step S1102 can have following several situation.
The FSN (the perhaps sequence number of other bit wide) that increases 8/4bits in the Spare of DCH frame Extension the inside represents test serial number.
The indicating range of 8 bits is 0～255, and the time interval (TTI) of short transmission is 10ms,
So be 256*10ms=2.56s the shortest circulation timei,
Just in one 0～255 circulation, can test the packet loss in the 2.56s time.
Time delay between Node B and the RNC can not surpass 2.56s, so the not enough situation of this sequence number can not occur.
Figure 12 shows the HS-DSCH frame format according to Iub interface down link under the situation of the HSDPA of the embodiment of the invention.Second byte of the face in front of HS-DSCH represented test serial number with the FSN of 4 bits.Whether can monitor 16 continuous messages at most and receive, for monitoring out packet loss from a large amount of messages, such sequence number number is enough for monitoring.
Figure 13 shows the block diagram according to the descending packet loss monitoring device 1300 of the embodiment of the invention, comprising:
Descending statistic unit 1304 is used for adding up descending packet loss according to the described test serial number that receives on down link.
Can also comprise the descending unit 1306 that reports, be used for the descending packet loss of descending statistic unit 1304 statistics is reported the RNC processing.
Can also comprise the descending processing unit (not shown) that reports, be used for reporting the backstage to handle descending packet loss.
Following table has provided an example of the reporting message of descending packet loss: (Node B reports the packet loss of down link by self-defining message).
| Parameter name | Whether essential | Meaning of parameters |
| UDP port | Yes | Udp port number |
| Source IP | Yes | Source IP |
| Destination IP | Yes | Purpose IP |
| Packet loss | Yes | Packet loss |
Because may be below the RNC with a lot of Node B, in the subsidiary descending packet loss information in the self-defined message the inside of Node B, Node B regularly reports RNC, and RNC just knows descending packet loss, and RNC just can calculate up, descending packet loss fully like this.
As can be seen from the above description, embodiments of the invention have been realized following technique effect:
1, owing in the frame of Iub interface, identify test serial number, add up packet loss according to the test serial number that receives then, thus can monitor the packet drop of each service message in real time, rather than come the indirectly testing network quality by test packet.
2, owing to can or strengthen the dedicated transmission channel frame at up dedicated transmission channel frame, and sign test serial number in descending dedicated transmission channel frame or the high speed shared data transmission channel frame, so the embodiment of the invention not only can be monitored the packet loss of loopback link, but also can analyze up, the descending packet loss of monitoring.And that the mode of sign test serial number can have is multiple, and utilization flexibly.
Thus, utilize this programme, under the IP of Iub transmission, can be respectively for the R99 speech business, the QOS quality of the different business of HSDPA, HSUPA is monitored, and reflects the situation of current network in real time, thereby realizes the real-time monitoring to the network QOS quality.
Obviously, those skilled in the art should be understood that, above-mentioned each unit of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit unit respectively, perhaps a plurality of unit in them or step are made into the single integrated circuit unit and realize.Like this, the present invention is not restricted to any specific hardware and software combination.Should be understood that the variation in these concrete enforcements is conspicuous for a person skilled in the art, do not break away from spiritual protection range of the present invention.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (14)
1. an Iub interface packet loss monitoring method is characterized in that, may further comprise the steps:
At the up dedicated transmission channel DCH frame of Iub interface or strengthen in the exclusive use transmission signal channel frame and identify test serial number;
On up link, add up up packet loss according to the described test serial number that receives; Wherein,
The described test serial number of sign is specially in the up DCH frame of described Iub interface: the number of frames or the line frame sequence number that increase predetermined bit width in the Spare of this frame Extension identify described test serial number;
The described test serial number of sign is specially in the up E-DCH frame of described Iub interface: number of frames or line frame sequence number that predetermined bit width is set in this frame identify described test serial number.
2. method according to claim 1 is characterized in that, described predetermined bit width is 8 or 4bits.
3. method according to claim 1 is characterized in that, behind the described statistics packet loss, further comprises reporting the backstage to handle described packet loss.
4. an Iub interface packet loss monitoring method is characterized in that, may further comprise the steps:
In descending DCH frame of Iub interface or high speed shared data transmission channel HS-DSCH frame, identify test serial number;
On down link, add up descending packet loss according to the described test serial number that receives; Wherein,
The sign test serial number is specially in described descending DCH frame: the number of frames or the line frame sequence number that increase predetermined bit width in the Spare Extension of described descending DCH frame identify described test serial number;
The sign test serial number is specially in described descending HS-DSCH frame: number of frames or line frame sequence number that predetermined bit width is set in described HS-DSCH frame identify described test serial number.
5. method according to claim 4 is characterized in that, add up descending packet loss after, also comprise described descending packet loss is reported the step that RNC handles.
6. method according to claim 5 is characterized in that,
By up self-defining inside story or by the dedicated transmission channel synchronization frame, described descending packet loss is reported RNC handle.
7. according to each described method of claim 4 to 6, it is characterized in that described predetermined bit width is 8 or 4bits.
8. method according to claim 4 is characterized in that, behind the described statistics packet loss, further comprises reporting the backstage to handle described packet loss.
9. an Iub interface packet loss monitoring device is characterized in that, comprising:
Setup unit is used for identifying test serial number in up DCH frame of Iub interface or E-DCH frame;
Statistic unit is used for adding up up packet loss according to the described test serial number that receives on up link; Wherein,
The described test serial number of sign is specially in the up DCH frame of described Iub interface: the number of frames or the line frame sequence number that increase predetermined bit width in the Spare of this frame Extension identify described test serial number;
The described test serial number of sign is specially in the up E-DCH frame of described Iub interface: number of frames or line frame sequence number that predetermined bit width is set in this frame identify described test serial number.
10. device according to claim 9 is characterized in that, described predetermined bit width is 8 or 4bits.
11. device according to claim 9 is characterized in that, also comprises reporting the unit, is used for the up packet loss of described statistic unit statistics is reported the RNC processing.
12. an Iub interface packet loss monitoring device is characterized in that, comprising:
Setup unit is used for identifying test serial number in descending DCH frame of Iub interface or HS-DSCH frame;
Statistic unit is used for adding up descending packet loss according to the described test serial number that receives on down link; Wherein,
The sign test serial number is specially in described descending DCH frame: the number of frames or the line frame sequence number that increase predetermined bit width in the Spare Extension of described descending DCH frame identify described test serial number;
The sign test serial number is specially in described descending HS-DSCH frame: number of frames or line frame sequence number that predetermined bit width is set in described HS-DSCH frame identify described test serial number.
13. device according to claim 12 is characterized in that, described predetermined bit width is 8 or 4bits.
14. device according to claim 12 is characterized in that, also comprises reporting the unit, is used for the descending packet loss of described statistic unit statistics is reported the RNC processing.
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| CN200710002725A CN101001130B (en) | 2007-01-23 | 2007-01-23 | Method and device for monitoring Iub interface packet-loss rate |
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| CN200710002725A CN101001130B (en) | 2007-01-23 | 2007-01-23 | Method and device for monitoring Iub interface packet-loss rate |
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| CN101001130B true CN101001130B (en) | 2010-05-19 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101997597B (en) * | 2009-08-13 | 2014-09-24 | 上海中兴软件有限责任公司 | Frame sequence number extension method and system for enhanced dedicated transport channel frame protocol |
| CN102404069B (en) * | 2010-09-07 | 2016-03-30 | 中兴通讯股份有限公司 | The method and system of a kind of data encapsulation packet loss of link and out of order statistics |
| CN106341289B (en) * | 2016-08-30 | 2019-06-14 | 北京奇艺世纪科技有限公司 | A kind of the packet loss ratio estimation method and device of network packet packet capturing process |
| CN106911531A (en) * | 2017-01-10 | 2017-06-30 | 中国科学院信息工程研究所 | A kind of data packetloss rate statistical method of many distribution scenes |
| CN109005081B (en) * | 2018-06-26 | 2022-09-23 | 卡斯柯信号有限公司 | System and method for automatically detecting packet loss |
| CN116390148B (en) * | 2023-06-02 | 2023-08-11 | 联友智连科技有限公司 | Communication distance testing method and device for C-V2X wireless communication equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323123A (en) * | 2000-05-17 | 2001-11-21 | 松下电器产业株式会社 | Mixed automatic resending request method for packet data transmission |
| CN1430355A (en) * | 2001-12-29 | 2003-07-16 | 华为技术有限公司 | Method for processing user interface in circuit domain interface between network and radio access network |
| CN101114982A (en) * | 2006-07-24 | 2008-01-30 | 互联天下科技发展（深圳）有限公司 | IP network based audio-video QoS algorithm |
-
2007
- 2007-01-23 CN CN200710002725A patent/CN101001130B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323123A (en) * | 2000-05-17 | 2001-11-21 | 松下电器产业株式会社 | Mixed automatic resending request method for packet data transmission |
| CN1430355A (en) * | 2001-12-29 | 2003-07-16 | 华为技术有限公司 | Method for processing user interface in circuit domain interface between network and radio access network |
| CN101114982A (en) * | 2006-07-24 | 2008-01-30 | 互联天下科技发展（深圳）有限公司 | IP network based audio-video QoS algorithm |
Non-Patent Citations (6)
| Title |
|---|
| 3rd Generation Partnership Project |
| 3rd Generation Partnership Project Technical SpecificationGroup Radio Access Network.UTRAN Iub/Iur interface user plane protocol for DCH datastreams(Release 7).3GPP TS 25.427 v7.3.0.2006,3(25427730),21-24. * |
| 3rd Generation Partnership Project TechnicalSpecificationGroup Radio Access Network.High Speed Downlink Packet Access:Iub/Iur protocolaspects(Release 5).3GPP TR 25.877 V5.1.0.2002,3(25877510),37. * |
| JP特开2005-260520A 2005.09.22 |
| Technical SpecificationGroup Radio Access Network.UTRAN Iub/Iur interface user plane protocol for DCH datastreams(Release 7).3GPP TS 25.427 v7.3.0.2006,3(25427730),21-24. |
| TechnicalSpecificationGroup Radio Access Network.High Speed Downlink Packet Access:Iub/Iur protocolaspects(Release 5).3GPP TR 25.877 V5.1.0.2002,3(25877510),37. |
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Effective date of registration: 20211228 Address after: 450046 Floor 9, building 1, Zhengshang Boya Plaza, Longzihu wisdom Island, Zhengdong New Area, Zhengzhou City, Henan Province Patentee after: Super fusion Digital Technology Co.,Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |