CN104768172B - A method of 3G wireless channels are occupied based on IuPS interface analysis data services - Google Patents
A method of 3G wireless channels are occupied based on IuPS interface analysis data services Download PDFInfo
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Abstract
The invention discloses a kind of methods occupying 3G wireless channels based on IuPS interface analysis data services, including step：The Service Request and further signaling message sent out in IuPS interfaces capture MS knows that generating radio control channel occupies with this to judge that the PMM states of UE are migrated from IDEL to CONNECTED；Analysis is associated to the Service Request message and its further signaling message that capture, by association user face data, obtains and applies IP address；The correspondence that domain name and application IP address are known by DNS signalings, knows specific application type by domain name.Link acquisition and protocol analysis complexity of the present invention is relatively low, only Service Request message, which need to be detected, can be realized radio control channel occupancy situation, without tracking Iu release messages and PAGING message, and can be analysed in depth to causing the reason of signaling channel occupies.
Description
Technical field
It is the present invention relates to wireless communication field, more particularly to a kind of wireless based on IuPS interface analysis data services occupancy 3G
The method of channel.
Background technology
Radio channel resource is that mobile communications network is most important and limited resource, as mobile data services are rapidly sent out
Exhibition, the optimization of 3G (TD-SCDMA, WCDMA) network radio resources become the most important thing of operator network management.
Three kinds of wireless channels are defined in the 3 gpp specifications, are logic channel, transmission channel, physical channel, channel respectively
Between the mapping relations had an agreement.Logic channel can be generally divided into：Control channel and Traffic Channel；Transmission channel is by that can divide
For：Dedicated channel and common signal channel；Physical channel is divided into：Uplink physical channel, down physical channel and synchronizing channel.
The initiation of data service first has to establish signaling connection by control channel, and distributes Traffic Channel for number
It is used according to transmission, RNC will monitor MS states in real time in business procedure, and radio channel resource is discharged and distributed according to specific requirements.
Since 3G network has the characteristics that radio resource flexible management, certain IM business with server-side with heartbeat detection pattern,
M2M business, and have the terminal meeting frequent requests and release radio channel resource of energy-saving mode, this will lead to channel resource frequency
Numerous occupancy easily causes RNC, SGSN apparatus overload, will cause under serious conditions in the case of above-mentioned business and excessive terminal
Network paralysis.Therefore it is occupied for the radio resource that data service causes, for the emphasis of the optimization of operator wireless network at this stage
One of.
Operator is based primarily upon the Iub interface between NodeB-RNC for wireless resource management and optimization analysis at this stage, or
IuPS interfaces between RNC-SGSN realize that relevant interface schematic diagram is as shown in Figure 1.
Iub interface can accurately analyze the occupancy situation of radio resource, RNC-SGSN based on Iub interface near eating dishes without rice or wine
Though IuPS interfaces between can not directly analyze radio resource occupancy situation, by the tracking to MS PMM state transitions, can push away
Measure out radio resource occupancy situation.
Iub interface is mostly carried by ATM, and acquisition cost is high, and protocol stack is complicated.Channel mapping relations are parsed based on Iub interface
It to be identified by tracking dynamic signaling, realization is extremely complex, and needs to be associated with IuPS, IuCS interface for cryptographic protocol parsing
Message can cause signaling that can not parse, influence data accuracy if link acquisition range is not complete.
It is based on IuPS interfaces at this stage and realizes that 3G (TD-SCDMA, WCDMA) radio resource occupies analytical plan and mainly passes through
The mode of MS PMM state transitions is tracked to realize, this scheme can analyze radio resource occupancy situation, but need to track MS PMM
State transition process, parsing expense are larger.
In addition, above two scheme, which is all based on control plane signaling, carries out data analysis, unbonded user face data closes
Connection analysis, can not position the concrete reason for causing radio resource to occupy.
Invention content
It is a kind of based on IuPS interface analysis data industry present invention aims at providing in view of problems of the prior art
The method that business occupies 3G wireless channels, to for limitation existing for existing analytical plan, be believed by IuPS interface control planes
It enables, in conjunction with IuPS Interface User face datas, 3G (TD-SCDMA, WCDMA) radio resource occupancy situations and the origin cause of formation is goed deep into
Analysis.
According to an aspect of the invention, there is provided a kind of occupying 3G wireless channels based on IuPS interface analysis data services
Method, including step：
The Service Request message and follow-up signaling sent out in IuPS interfaces capture MS, according to Service
Request the characteristic informations judge that the PMM states of MS are migrated from IDEL to CONNECTED, to differentiate in conjunction with further signaling message
Whether MS generates radio control channel occupancy；Service Request message and its further signaling message to capturing simultaneously
It is associated analysis, by association user face data, obtains and applies IP address；Know domain name with application IP by DNS signalings
The correspondence of location knows specific application type according to domain name, is which kind of business causes radio control channel to occupy with determination.
Preferably, in the case that the Service Type in Service Request message are 1, after Service Request message
If there is security mode control flow, then it is assumed that be the service request initiated in PMM-IDLE states, you can be confirmed as producing
RRC connection establishes and is assigned with Traffic Channel.
Preferably, in the case that the Service Type in Service Request message are 2, then it is assumed that produce
PCH channel occupancy, while producing a RRC connection and establishing and be assigned with Traffic Channel.
Preferably, after the Service Request message and its further signaling message captured, locally joined according to SCCP
The number of examining is associated with the control plane signaling in a session, and completes PMM state transitions judgement and user's body based on control plane signaling
Part, location information identification, and pass through RAB assignment messages and carry information association user face data.
Preferably, judgement is to record the following contents after the service request that PMM-IDLE states are initiated：
(1) Channel holding time：The initiation time of Service Request message；
(2) reason is triggered：Upstream message triggers；
(3) subscriber identity information：Based on the RNAP layers of extraction of COMMONID message；
(4) customer position information：LAC/SAC based on the RNAP layers of extraction of Service Request message；
(5) business information that triggering signaling channel occupies：The application layer destination IP of first user plane messages after association.
Preferably, judge after producing a PCH channel occupancy, record the following contents：
(1) Channel holding time：Service Request message initiates the time；
(2) reason is triggered：Downstream message triggers；
(3) subscriber identity information：Based on the RNAP layers of extraction of COMMONID message；
(4) customer position information：LAC/SAC based on the RNAP layers of extraction of Service Request message；
(5) business information that triggering signaling channel occupies：The application layer source IP of first user plane messages after association.
Preferably, application IP, domain name, the type of service mapping table of a Dynamic Maintenance are established by DNS signalings,
The application layer IP that the signaling channel of uplink and downlink business triggering occupies in analytic process record can be associated with specific industry by this table
Service type causes signaling channel to occupy to confirm that being which kind of business.
Description of the drawings
Fig. 1 instantiates the interface type between 3G Wireless Communication Equipment in the prior art；
Fig. 2 instantiates the flow chart that 3G ps domains MS initiates data service；
Fig. 3 instantiates the flow chart of 3G ps domain network originated traffics；
The wireless channel that Fig. 4 instantiates the triggering of data service upstream message of the embodiment of the present invention occupies identification cdr logging letter
The extraction schematic diagram of breath；
The wireless channel that Fig. 5 instantiates the triggering of data service downstream message of the embodiment of the present invention occupies identification cdr logging letter
The extraction schematic diagram of breath；
Fig. 6 instantiates the schematic diagram that the embodiment of the present invention knows application type.
Specific implementation mode
To keep the above objects, features and advantages of the present invention more obvious and easy to understand, below in conjunction with the accompanying drawings and specific embodiment party
The present invention is described in further detail for formula.
In order to illustrate the realization method of the present invention, need to be introduced from the technical background of the present invention first.
In 3G (TD-SCDMA, WCDMA) ps domain, after MS adheres to network, there are two types of states：PMM-IDLE,PMM-
CONNECTED.When MS no datas transmit, PMM-IDLE states are operated in, MS at this moment is not take up radio channel resource, and MS is such as wanted
Initiation business need to first pass through control channel and establish RRC connections, then distribute traffic channel resource as required.RRC connections and corresponding
After the completion of transmission carrying is established, MS can be communicated normally with server-side, and MS is operated in PMM-CONNECTED states at this time, follow-up
In the case of the transmission of MS no data service traffics, as RRC-Connection-Release timer time-out or the ends MS are initiated release and connected
Request is connect, RNC will initiate Iu release requests to SGSN, after SGSN receives the message, initiate Iu and discharge flow, RNC release transmission
After carrying and RRC connections, Iu Release completes are returned, MS returns to PMM-IDLE states.
Fig. 2 instantiates the flow chart that 3G ps domains MS initiates data service, as shown in Fig. 2, the flow includes：
(1) it is communicated if there is no CS, then MS establishes RRC connections.Connection establishes procedure message by control channel transmission,
And distribute Dedicated Traffic Channel.
(2) MS sends Service Request message to SGSN.Service Type indicate requested business.
Service Type can be indicated：Data or signaling.
If Service Type are designated as data, signaling connection can be established between MS and SGSN, distribution activates on PDP
Resource hereafter, such as to activate the RAB of PDP Context to establish.
If Service Type are designated as signaling, signaling connection can be established between MS and SGSN to which upper layer letter occur
Enable message, such as Activate PDP Context Request.It is not that activation PDP Context distributes resource.
(3) if MS is the service request initiated in PMM-IDLE states, SGSN can carry out security mode control flow.
(4) network is in PMM-CONNECTED states and when Service Type is designated as data, if service request quilt
SGSN receives, then SGSN can send Service Accept message to MS.If Service Type are designated as data, SGSN can be sent out
Radio Access Bearer Assignment Request message is sent, in addition to possessing maximum upstream bits rate, downstream bits
Except the PDP Context that rate is 0, the PDP Context each to activate rebuilds RAB.
(5) RNC indicates that MS has built up new wireless access bearing sign and corresponding RAB ID.
(6) SRNC replys Radio Access Bearer Assignment Response message, and builds over the iu interface
Vertical GTP tunnel is as user plane data transfer channel.
(7) SGSN initiates PDP context modification.
(8) MS sends uplink packet.
Fig. 3 instantiates the flow chart of 3G ps domain network originated traffics, as shown in figure 3, the flow includes：
(1) SGSN receives the downlink PDP PDU for the MS for being in PMM-IDLE.
(2) SGSN sends paging message to RNC, and RNC pagings page MS by sending paging message.
(3) if not having CS accesses, MS establishes RRC connections.
(4) MS sends Service Request message to SGSN, and service type is page response.At this point, SGSN may be sent out
Play an authentication.SGSN knows whether downstream packets need RAB to rebuild.
(5) SGSN specifies encryption mode.
(6) if the resource of PDP Context is rebuild, SGSN sends Radio Access Bearer
AssignmentRequest.RNC sends Radio Access BearerAssignment Response message to SGSN, refers to
Bright GTP tunnel has built up in Iu interfaces, and radio access bearer is established between RNC and MS.
(7) SGSN initiates PDP context modification.
(8) SGSN sends downstream packets.
By analyzing above：RRC connections are established is related to control channel occupancy and traffic channel assignments with release flow
With release, RRC linking parsings can be realized based on Iub interface, IuPS interfaces can not be directly realized by RRC linking parsings, but can pass through
Core network signalling does predictive analysis to RRC connections, is established due to RRC connections and is occurred in pairs with release flow, it is based on core
The supposition that heart net signaling only does RRC connections Establishing process is analyzed.
It is analyzed in conjunction with 3G data traffic flows, the data traffic flows that either MS is initiated or network is initiated, and no matter
The PMM states of MS are PMM-IDLE or PMM-CONNECTED, and MS can initiate Service Request message, this message
It can be captured in Iub, IuPS interface.
Therefore, we can be based on the Service Request message analysis captured to many contents.
Service Request flow description of use：
1) MS of PMM-IDLE states establishes a secure attachment using service request program to SGSN requests, for sending out
Serve uplink signaling message or user data；
2) MS is in PMM-CONNECTED states or activated PDP Context asks resource reservation
Service Request type of messages and tupe for PMM states：
Service Type in Service Request message have 3 values：0 it is signaling, 1 be data, 2 is paging
Response.If MS is the service request initiated in PMM-IDLE states, SGSN can carry out security mode control flow.If MS
When being designated as data in PMM-CONNECTED states and Service Type, if service request is received by SGSN, SGSN meetings
Service Accept message is sent to MS.
It can be obtained in conjunction with above-mentioned two point analysis to draw a conclusion：
It is occupied for radio resource caused by data service, it is 1 (data), 2 (paging sound only to analyze Service Type
Answer) the case where.In the case where Service Type are 1 (data), if there is safety after Service Request message
Mode control flow, it is believed that be the service request initiated in PMM-IDLE states, you can be confirmed as producing a RRC connection
It establishes and is assigned with Traffic Channel；In the case where Service Type are 2 (page response), it is believed that produce a PCH
Channel occupancy, while producing a RRC connection and establishing and be assigned with Traffic Channel.
It can determine according to the above results, judge that radio channel resource occupies analysis based on IuPS interface signalings, for
Service Request and its further signaling message can be realized.
Therefore, IuPS interfaces are based on, by that Service Request and its further signaling message association analysis, can obtain
Know radio resource occupancy situation and user identity and location information, by association user face data, can get business information,
To position, to be which kind of business cause radio resource to occupy.
It completes the radio resource based on IuPS interfaces and occupies analysis, first have to realize the identification of Service Request message,
And the control plane signaling in a session is associated with according to the locals SCCP reference number, and PMM states are completed based on control plane signaling and are moved
Judgement and user identity, location information identification are moved, and passes through RAB assignment messages and carries information association user face data.
After the completion of SCCP connections association, the control plane signaling in the same session of the user can be obtained, if there is safety control
Flow processed, it is believed that MS comes from PMM-IDLE migrations, that is, opens a uplink CDR, and record Service Request message
In location information (LAC/SAC) and COMMONID message in the subscriber identity information (IMSI) that carries.Wherein user location
Information LAC/SAC is located at the RANAP layers of Service Request message.Subscriber identity information (IMSI) is disappeared based on COMMONID
RNAP layers of extraction of breath.
User face data correlation rule：
(1) user plane bearer layer network element IP and GTP tunnel ID are obtained by control plane RAB-Assignment signalings.
(2) the bearing bed network element IP and GTP tunnel ID provided according to control plane RAB-Assignment signalings can be associated with conjunction
At user face data.
The wireless channel of data service upstream message triggering occupies identification, first has to detection Service Type=1's
Service Request message is associated with control plane signaling by the locals SCCP reference number and is then opened if there is security control flow
CDR is opened, record record field information includes：
(1) Channel holding time：The initiation time of Service Request message；
(2) reason is triggered：Upstream message triggers；
(3) subscriber identity information：Based on the RNAP layers of extraction of COMMONID message；
(4) customer position information：LAC/SAC based on the RNAP layers of extraction of Service Request message；
(5) business information that triggering signaling channel occupies：The application layer destination IP of first user plane messages after association.
The wireless channel that Fig. 4 instantiates the triggering of data service upstream message of the embodiment of the present invention occupies identification cdr logging letter
The extraction schematic diagram of breath, as shown in figure 4, cdr logging includes：
(1) the Service Request message of Service Type=1, turn-on data caching are detected, and records RNAP
The customer position information (LAC/SAC) that layer carries, referring to the 15th number packets of Fig. 4.
(2) subsequent control plane signaling message is associated with according to the locals SCCP reference number.
(3) when finding to have security control message, CDR synthesis is opened, referring to the 16th number packets of Fig. 4.
(4) by COMMONID message extractions subscriber identity information (IMSI), referring to the 18th number packets of Fig. 4.
(5) by RAB-Assignment message relating user face datas, and application layer IP is extracted, referring to Fig. 4 the 20th
Data packet, application layer IP is in this example：120.204.200.23.
The wireless channel of data service downstream message triggering occupies identification, without detecting PAGING message, only needs to detect
The Service Request message of Service Type=2 is associated with control plane signaling by the locals SCCP reference number, if there is
Security control flow, then open CDR, and record record field information includes：
(1) Channel holding time：Service Request message initiates the time；
(2) reason is triggered：Downstream message triggers；
(3) subscriber identity information：Based on the RNAP layers of extraction of COMMONID message；
(4) customer position information：LAC/SAC based on the RNAP layers of extraction of Service Request message；
(5) business information that triggering signaling channel occupies：The application layer source IP of first user plane messages after association.
The wireless channel that Fig. 5 instantiates the triggering of data service downstream message of the embodiment of the present invention occupies identification cdr logging letter
The extraction schematic diagram of breath, as shown in figure 5, cdr logging includes：
(1) the Service Request message of Service Type=2, turn-on data caching are detected, and records RNAP
The customer position information (LAC/SAC) that layer carries, referring to the 10th number packets of Fig. 5.
(2) subsequent control plane signaling message is associated with according to the locals SCCP reference number.
(3) when finding to have security control message, CDR synthesis is opened, referring to the 13rd number packets of Fig. 5.
(4) by COMMONID message extractions subscriber identity information (IMSI), referring to the 15th number packets of Fig. 5.
(5) by RAB-Assignment message relating user face datas, and application layer IP is extracted, referring to Fig. 5 the 17th
Data packet, application layer IP is in this example：10.0.0.172.
Hereafter, the correspondence that domain name and application IP are would know that by DNS signalings, would know that specific application by domain name
Type.
As shown in 6 figures, by DNS signalings, domain name would know that：Long.weixin.qq.com's is using IP：
140.206.160.102,112.64.200.218,112.64.234.229 etc., and pass through domain name：long.weixin.qq.com
It can determine whether as wechat business.
According to the above principle, the application IP of a Dynamic Maintenance, domain name, type of service can be established by DNS signalings and corresponded to
Relation table, the application layer IP that the signaling channel of uplink and downlink business triggering occupies in analytic process record can be associated with by this table
Signaling channel is caused to occupy to confirm that being which kind of business to specific type of service.
The present invention is based on the schemes that IuPS interfaces are realized, link acquisition and protocol analysis complexity are relatively low.Compared to existing
Based on IuPS interfaces realize radio resource occupy analysis scheme, this programme without entire session flow detection, i.e., only need to examine
Service Request message is surveyed to there is user plane initiation, is patrolled without tracking Iu release messages and PAGING message, synthesis
Simple, easily realization is collected, and hardware resource cost is smaller.The radio resource of the uplink and downlink business triggering of this programme output, which occupies, to be divided
It includes subscriber identity information, location information, and the business conduct of triggering signaling channel occupancy to analyse process record, is convenient for application side
From multiple visual angles such as terminal, position, business, analysed in depth to causing the reason of signaling channel occupies.
It is the detailed description carried out to the preferred embodiment of the present invention above, but those skilled in the art should anticipate
Know, within the scope of the present invention, and guided by the spirit, it is various improve, addition and to replace all be possible, such as using can be real
The algorithm of existing functional purpose of the same race uses different programming language (such as C, C++, Java) realizations etc..These are all in the present invention
Claim defined by protection domain.
Claims (7)
1. a kind of method occupying 3G wireless channels based on IuPS interface analysis data services, including step：
The Service Request message and follow-up signaling sent out in IuPS interfaces capture mobile station MS, according to Service
Request the characteristic informations, in conjunction with further signaling message come judge the grouping mobile management PMM states of mobile station MS from IDEL to
CONNECTED is migrated, and is occupied with differentiating whether mobile station MS generates radio control channel；
Analysis is associated to the Service Request message and its further signaling message that capture simultaneously, is used by being associated with
Family face data obtains and applies IP address；User face data correlation rule includes：(1) believed by control plane RAB-Assignment
It enables and obtains user plane bearer layer network element IP and GTP tunnel ID；(2) carrying provided according to control plane RAB-Assignment signalings
Layer network element IP and GTP tunnel ID association synthesis user face datas；
The wireless channel of data service upstream message triggering occupies identification, first has to the Service of detection Service Type=1
Request message is associated with control plane signaling, if there is safe control flow by the locals signaling connection control protocol SCCP reference number
Journey then opens call detail record CDR；
The wireless channel of data service downstream message triggering occupies identification, without detecting PAGING message, only need to detect Service
The Service Request message of Type=2 is associated with control plane letter by the locals signaling connection control protocol SCCP reference number
It enables, if there is security control flow, then opens call detail record CDR；
The correspondence that domain name and application IP address are known by domain name system DNS signaling, knows specific application according to domain name
Type is which kind of business causes radio control channel to occupy with determination.
2. the method as described in claim 1, it is characterised in that：
In the case that Service Type in Service Request message are 1, after Service Request message such as
Fruit has security mode control flow, then it is assumed that is the service request initiated in grouping mobile management free time PMM-IDLE states, i.e.,
It can be confirmed as producing RRC connection foundation and be assigned with Traffic Channel.
3. the method as described in claim 1, it is characterised in that：
In the case that Service Type in Service Request message are 2, then it is assumed that produce a PCH channel
It occupies, while producing a RRC connection and establishing and be assigned with Traffic Channel.
4. the method as described in claim 1, it is characterised in that：
After the Service Request message and its further signaling message captured, according to signaling connection control protocol SCCP
Local reference number is associated with the control plane signaling in a session, and completes grouping mobile management PMM states based on control plane signaling
Migration judges and user identity, location information identification, and carries information association user face data by RAB assignment messages.
5. method as claimed in claim 2, which is characterized in that judgement is in grouping mobile management free time PMM-IDLE states hair
After the service request risen, the following contents is recorded：
(1) Channel holding time：The initiation time of Service Request message；
(2) reason is triggered：Upstream message triggers；
(3) subscriber identity information：Based on the RNAP layers of extraction of COMMONID message remote network access agreement；
(4) customer position information：Position area based on the extraction of Service Request message remote network access agreement RNAP floor
Code LAC/ service area codes SAC；
(5) business information that triggering signaling channel occupies：The application layer destination IP of first user plane messages after association.
6. method as claimed in claim 3, which is characterized in that after judgement produces a PCH channel occupancy, record in following
Hold：
(1) Channel holding time：Service Request message initiates the time；
(2) reason is triggered：Downstream message triggers；
(3) subscriber identity information：Based on the RNAP layers of extraction of COMMONID message remote network access agreement；
(4) customer position information：Position area based on the extraction of Service Request message remote network access agreement RNAP floor
Code LAC/ service area codes SAC；
(5) business information that triggering signaling channel occupies：The application layer source IP of first user plane messages after association.
7. the method as described in claim 1, it is characterised in that：
Application IP, domain name, the type of service mapping table of a Dynamic Maintenance are established by domain name system DNS signaling, above and below
The application layer IP that the signaling channel of industry business triggering occupies in analytic process record can be associated with specific service class by this table
Type causes signaling channel to occupy to confirm that being which kind of business.
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| CN103118146A (en) * | 2013-01-21 | 2013-05-22 | 北京拓明科技有限公司 | Identification method for identical internet protocol (IP) address signed by different users in home location register (HLR) based on signaling |
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