CN104968012A - Measurement method and system suitable for UMTS network RRC state machine - Google Patents

Measurement method and system suitable for UMTS network RRC state machine Download PDF

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Publication number
CN104968012A
CN104968012A CN201510394093.5A CN201510394093A CN104968012A CN 104968012 A CN104968012 A CN 104968012A CN 201510394093 A CN201510394093 A CN 201510394093A CN 104968012 A CN104968012 A CN 104968012A
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mobile terminal
state
packet
delay
measurement
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CN104968012B (en
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徐川
孙作霖
倪名
左剑
赵国锋
唐红
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Chongqing University of Post and Telecommunications
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Chongqing University of Post and Telecommunications
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
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Abstract

The invention provides a measurement method and system suitable for a UMTS network RRC state machine, belonging to the technical field of mobile communication. The measurement method includes presetting transmitting/receiving data packet rules of a mobile terminal and a server; measuring and recording the time delay of the data packets; and reckoning the switching rules of a UMTS network mobile terminal in different RRC states and state machine specific parameters through the analysis of the time delay measurement results. The measuring system includes a time delay measuring module 401, a result storage module 402, and a result analysis module 403. The measurement method is simple to operate, optimizes network design and resource distribution, and provides a better use platform for mobile terminal users. The measurement method has great actual application values.

Description

A kind of method of measurement and system being applicable to UMTS network RRC state machine
Technical field
The invention belongs to mobile communication technology field, be specifically related to the method for measurement and the system that are applicable to UMTS network RRC state machine.
Background technology
Mobile communication technology, by feat of its characteristic such as high bandwidth, low time delay, obtains and applies the most widely in worldwide.As shown in Figure 1, in UMTS (universal mobile telecommunications system), RRC (radio resource control) is embodied in RNC (radio network controller), RRC agreement is responsible for foundation and the release of wireless data link between mobile terminal and base station, and on each mobile terminal device, maintain a RRC state machine, this state machine is in charge of the state of physical link.As a rule, UMTS mobile terminal mainly contains three states: (1) IDLE state: do not have data link between terminal and base station, can not transmit data, and substantially not consume final energy; (2) FACH state: a shared data link is assigned to terminal, only supports the transfer of data of low rate, it is lower to consume energy consumption; (3) DCH state: a special data link is assigned to terminal, for the transfer of data of two-forty.
Switching is had to have two types between RRC different conditions: to be that UE switches (Demotion) by high power consumption state to low energy consumption state to high power consumption state switching (Promotion) and UE by low energy consumption state respectively.Wherein, state Promotion (moving liter) represents that network interface proceeds to high power consumption state from low energy consumption state, as from IDLE → DCH, or IDLE → FACH → DCH.State Promotion is triggered by data transfer demands, and this state switches the request and the distribution that relate to dedicated link, can bring larger time delay; State Demotion (degradation) represents that network interface proceeds to low energy consumption state from high power consumption state, as from DCH → FACH → IDLE, or from DCH → IDLE.Demotion is triggered by inactivity timer, and do not observe any transfer of data inactivity timer in T time and trigger Demotion, wherein T time is otherwise known as the tail time.
The different RRC state machine of different UMTS Virtual network operator business possible configuration and switching law and state machine design parameter are the state machine model of operator's possible configuration as shown in Figures 2 and 3.
In RRC state machine A, for promotion, when mobile terminal is in IDLE state, any transfer of data all can cause state to be switched to DCH state.If be in FACH state, up-downgoing datalink queue is greater than threshold value, will be switched to DCH state; For demotion, when terminal is in DCH state, at T 1inside do not observe any transfer of data, mobile terminal state switches FACH state.When being in FACH state, T 2do not have transfer of data in time, state is switched to IDLE state.In RRC state machine B, for promotion, if mobile terminal is in IDLE state, there is a small amount of low speed data to transmit, be switched to FACH state; When needing the data of transmission to be greater than wireless data link threshold value, FACH state is switched to DCH state; For demotion, when terminal is in DCH state, T 3inside do not have transfer of data, state is switched to IDLE state.
Switching law between the RRC state of mobile terminal and state machine design parameter are configured by operator, and can't initiatively disclose these parameters, subscriber equipment directly cannot obtain above-mentioned parameter, and less for mobile-terminal RRC state machine Research on measuring technique at present.The people such as QianFeng propose a kind of Active measuring method being suitable for mobile-terminal RRC state machine in a wcdma network, UDP message bag is initiatively sent to server by terminal, then server returns a UDP message bag to mobile terminal, surveying record round-trip delay in this process, experience certain dormancy time, then repeat above operation.This method by analyzing the Changing Pattern of round-trip delay, and then can complete the measurement to mobile-terminal RRC state switching law.Inventor finds Problems existing in this method of measurement: (1) is in the process measuring round-trip delay, do not consider that the large byte data bag of transmission and little byte data wrap in the otherness in propagation delay time value, cause, when calculating mobile-terminal RRC state machine design parameter, certain measure error being caused.(2) this kind of method is not measured respectively to the uplink and downlink data link threshold value that FACH state is switched to DCH state, causes RRC state machine design parameter perfect not.
Summary of the invention
For the deficiencies in the prior art, propose simple to operate, the practical measuring system for UMTS network RRC state machine of a kind of method of measurement and method.Technical scheme of the present invention is as follows: a kind of measuring system being applicable to UMTS network RRC state machine, and it comprises latency measurement module 401, result memory module 402 and results analyses module 403; Wherein
Latency measurement module 401: for measuring the One Way Delay of mobile terminal radio resource control RRC state machine in universal mobile telecommunications system UMTS network, between server and mobile terminal, pre-set server send the rule of packet to mobile terminal and the rule of mobile terminal reception packet, sending/receiving packet rule mainly comprises setting data bag size, Packet Generation/time of reception interval, between mobile terminal with service end, set up TCP be connected, and adopt GPS or ntp network time protocol clock synchronous method, calibration makes mobile terminal and service end reach clock synchronous, and one-way delay measurement result is sent to measurement result memory module 402,
Measurement result memory module 402: send the One Way Delay result of packet to mobile terminal for recording also storage server;
Time delay results analyses module 403: the time delay measures calling measurement result memory module 402, calculate the slope of adjacent twice measurement result, find the transition point that there is slope sudden change, determine the measurement time delay result that transition point place is corresponding and dormancy time, the characteristic compared with long time delay can be produced according to the different size data packet delay difference of sending/receiving and the switching of mobile-terminal RRC state, draw the parameter of mobile terminal radio resource control RRC state machine, specifically comprise state to move and rise promotion mode, state degradation demotion mode, state demotion inactivity timer is measured, state is moved and is risen promotion time delay, up data link threshold value and down data links threshold value.
Be applicable to a method of measurement for UMTS network RRC state machine, it comprises the following steps:
201, server is set in advance between server and mobile terminal and sends the rule of packet to mobile terminal and the rule of mobile terminal reception packet; Between mobile terminal with service end, set up TCP be connected, and adopt GPS or NTP (Network Time Protocol) NTP clock synchronous method, calibration makes mobile terminal and service end reach clock synchronous;
202, measure and record the one-way delay measurement result of server transmission packet to mobile terminal;
203, the slope of adjacent twice measurement result is calculated in one-way delay measurement result from step 202, find the transition point of slope sudden change, obtain measurement time delay result corresponding to transition point place and dormancy time delay, utilize transmission time difference and the switching of mobile-terminal RRC state needed for different size data bag can produce the characteristic compared with long time delay, draw mobile-terminal RRC state parameter switching time, specifically comprise the measurement of following parameter: state is moved and risen promotion mode, state degradation demotion mode, state demotion inactivity timer is measured, state is moved and is risen promotion time delay, up data link threshold value and down data links threshold value.
Further, in step 203, state is moved the measurement rising promotion mode and is specifically comprised the following steps: (1) makes mobile terminal network interface be in idle condition; (2) server sends the packet of a little byte to mobile terminal; (3) service end and client carry out clock synchronous; (4) server sends the packet of a large byte to mobile terminal, treats that terminal receives packet, the One Way Delay D of record data bag experience 1; (5) server sends the packet of a large byte again to mobile terminal, treats that terminal receives packet, the One Way Delay D of record data bag experience 2, and D 2in do not comprise state handover delay; (6) if met | D 1-D 2| >500ms, then RRC state moves the mode of liter is IDLE → FACH → DCH; Otherwise, move for RRC state and rise mode IDLE → DCH.
Further, in step 203, the measurement of state degradation demotion mode specifically comprises the following steps: (1) arranges cycle tiemr initial value N and maximum execution number of times M; (2) server sends the packet of a large byte to mobile terminal; (3), after mobile terminal receives packet, dormancy N second is carried out; (4) service end and client carry out clock synchronous; (5) server sends the packet of a little byte to mobile terminal, the One Way Delay value D of record data bag experience n3; (6) server sends the packet of a large byte again to mobile terminal; (7), after mobile terminal receives packet, dormancy N second is carried out; (8) service end and client carry out clock synchronous; (9) server third time sends the packet of a large byte to mobile terminal.The One Way Delay D of record data bag experience n4; (10) the above step that circulates (2) ~ (9), need circulation M-N time altogether; (11) server sends again a large byte data bag to mobile terminal, the One Way Delay D of record data bag experience 3; (12) server sends a little byte data bag to mobile terminal, the One Way Delay D of record data bag experience 4; (13) if exist | D n4-D n3|-| D 4-D 3| >1000ms, then RRC state degraded mode is DCH → FACH → IDLE, otherwise, then judge that RRC state degraded mode is DCH → IDLE.Wherein, N is cycle counter.
Further, the measurement of state degradation demotion inactivity timer specifically comprises the following steps: (1) arranges cycle tiemr initial value N and maximum execution number of times M; (2) server sends a large byte data bag to mobile terminal; (3) after mobile terminal receives packet, dormancy N second is carried out; (4) service end and client carry out clock synchronous; (5) server sends the packet of a large byte again to mobile terminal, the One Way Delay D of record data bag experience n5; (6) repeat step (2) ~ (5), need circulation M-N time altogether; (7) record time delay D is calculated n5in the slope of adjacent twice measurement result, find the some n that there is slope sudden change, the corresponding dormancy time N of some n; (8) if there is the some n of two slope sudden changes, corresponding dormancy time N respectively 1, N 2.Then DCH state is switched to the inactivity timer of IDLE state is N 2, the inactivity timer that DCH state is switched to FACH state is N 1, the inactivity timer that FACH state is switched to IDLE state is N 2-N 1; If there is the some n of a slope sudden change, corresponding dormancy time N 3.The inactivity timer that DCH state is switched to IDLE state is N 3, wherein, N is cycle counter.
Further, state promotion time-delay measuring method comprises the following steps: (1) arranges cycle tiemr initial value N and maximum execution number of times M; (2) server sends a large byte data bag to mobile terminal; (3) after mobile terminal receives packet, dormancy N second is carried out; (4) service end and client carry out clock synchronous; (5) server sends the packet of a large byte again to mobile terminal, the One Way Delay D of record data bag experience n6; (6) repeat step (2) ~ (5), need circulation M-N time altogether; (7) server sends again a large byte data bag to mobile terminal, the One Way Delay D of record data bag experience 6; (8) time delay D of record is calculated n6in the slope of adjacent twice measurement result, find the some n that there is slope sudden change, the time delay that some n correspondence is measured is X; (9) if there is the some n of two slope sudden changes, the corresponding time delay measured is X respectively 1, X 2, IDLE state is moved and is raised to DCH state handover delay is X 2-D 6, FACH state is moved and is raised to DCH state handover delay is X 1-D 6; If there is the some n of a slope sudden change, measurement time delay is X 3, IDLE state is moved and is raised to DCH state handover delay is X 3-D 6, wherein, N is cycle counter.
Further, in step 203, the determination of up data link threshold value comprises following concrete steps: (1) arranges cycle tiemr initial value n and maximum execution number of times M; (2) server sends a large byte data bag to mobile terminal; (3) after mobile terminal receives packet, dormancy N second is carried out; (4) service end and client carry out clock synchronous; (5) server sends the packet of (100+n × 10) byte to mobile terminal, the One Way Delay D of record data bag experience n7; (6) repeat step (2) ~ (5), need circulation M-n time altogether; (7) time delay D of record is calculated n7in the slope of adjacent twice measurement result, find the some m that there is slope sudden change, the size that some m place correspondence sends packet is (100+n*10) byte, is and triggers the up data link threshold value that FACH state is switched to DCH state, wherein, n is cycle counter.
Further, in step 203, the determination of down data links threshold value comprises following concrete steps: (1) arranges cycle tiemr initial value n and maximum execution number of times M; (2) mobile terminal sends a large byte data to packet server; (3) after mobile terminal receives packet, dormancy N second is carried out, wherein N 1<N<N 2; (4) service end and client carry out clock synchronous; (5) mobile terminal sends (100+n × 10) byte data bag to server, the One Way Delay D of record data bag experience n8; (6) repeat step (2) ~ (5), need circulation M-n time altogether; (7) time delay D of record is calculated n8in the slope of adjacent twice measurement result, find the some m that there is slope sudden change, the size that some m place correspondence sends packet is (100+n*10) byte, is and triggers the down data links threshold value that FACH state is switched to DCH state, wherein, n is cycle counter.
Further, the size of large packet is 1500 bytes, and the size of small data is 100 bytes.
Advantage of the present invention and beneficial effect as follows:
The present invention utilizes above-described technical method, obtains significant technique effect.This method of measurement realizes simple, only need preset that the sending out of mobile terminal and server policy/packet receiving is regular, the time delay of record data bag experience, then by the analysis of measuring time delay result, can extrapolate the switching law between RRC state and design parameter thereof.By the measurement to these network parameters, help Virtual network operator and grasp network state better, and perfect, optimized network designs and Resourse Distribute pointedly.Further for mobile terminal application developer provides reliable theories integration, find application program on the impact of terminal energy consumption in data transmission procedure, thus assist its optimization data reciprocal process on stream, to promote network transmission quality better.
Accompanying drawing explanation
Fig. 1 the invention provides embodiment UMTS network architecture diagram;
Fig. 2: the RRC state machine A of Virtual network operator possible configuration;
Fig. 3: the RRC state machine B of Virtual network operator possible configuration;
Fig. 4: one is applicable to UMTS network RRC state machine measuring system schematic diagram;
Fig. 5: RRC state promotion mode determination methods flow chart;
Fig. 6: RRC state demotion mode determination methods flow chart;
Fig. 7: RRC state demotion inactivity timer method of measurement flow chart;
Fig. 8: RRC state promotion time-delay measuring method flow chart;
Fig. 9: the method for measurement flow chart of up data link threshold value;
Figure 10: the method for measurement flow chart of down data links threshold value.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 4, the mobile-terminal RRC state machine measuring system of TD-LTE network mainly comprises three parts: (1) latency measurement module 401, for measuring the One Way Delay of mobile terminal radio resource control RRC state machine in universal mobile telecommunications system UMTS network.First, between server and mobile terminal, pre-set server send the rule of packet to mobile terminal and the rule of mobile terminal reception packet, specific rules mainly comprises setting data bag size, Packet Generation/time of reception interval.Then, between mobile terminal with service end, set up TCP be connected, and adopt GPS or ntp network time protocol clock synchronous method, calibration makes mobile terminal and service end reach clock synchronous; And one-way delay measurement result is sent to measurement result memory module 402; (2) result memory module 402, for recording the measurement result of also packet experience One Way Delay between storage server and mobile terminal.(3) results analyses module 403, calls the time delay measures of measurement result memory module 402, calculates the slope of adjacent twice measurement result, finds the transition point that there is slope sudden change, determines the measurement time delay result that transition point place is corresponding and dormancy time.The characteristic compared with long time delay can be produced according to the different size data packet delay difference of sending/receiving and the switching of mobile-terminal RRC state, draw the parameter of mobile terminal radio resource control RRC state machine, specifically comprise that state moves the promotion mode that rises, state degradation demotion mode, state demotion inactivity timer are measured, state is moved and risen promotion time delay, up data link threshold value and down data links threshold value.
With reference to the accompanying drawings 5, the concrete steps judging RRC state promotion mode method of measurement are described:
Step 501: click and start, set up TCP and be connected between server with mobile terminal;
Step 502: idle 30 seconds of mobile terminal, guarantees do not have transfer of data, makes mobile terminal network interface be in idle condition;
Step 503: server sends the packet of 100 bytes to mobile terminal, for mobile terminal state promotion;
Step 504: mobile terminal and server carry out GPS or NTP clock synchronous;
Step 505: server sends the packet of 1500 bytes to mobile terminal, treats that terminal receives packet, records the One Way Delay D of this packet experience 1;
Step 506: server sends 1500 byte data bags again to mobile terminal, treats that terminal receives packet, the One Way Delay D of record data bag experience 2, D 2in comprise state handover delay scarcely;
If record time delay | D 1-D 2| >500ms, then mobile-terminal RRC state moves the mode of liter is 507:IDLE → FACH → DCH; Otherwise it is 508:IDLE → DCH that mobile-terminal RRC state moves the mode of liter;
Step 509: click and terminate, disconnects service end and is connected with between client.
With reference to the accompanying drawings 6, the concrete steps judging RRC state demotion mode method of measurement are described:
Step 601: click and start, set up TCP and be connected between server with mobile terminal;
Step 602: arrange cycle counter initial value N be 0 and maximum execution number of times M be 20;
Step 603: server sends the packet of 1500 bytes to mobile terminal, guarantees mobile terminal state promotion to DCH state;
Step 604: after mobile terminal receives packet, carries out dormancy N second;
Step 605: mobile terminal and server carry out GPS or NTP clock synchronous;
Step 606: server sends the packet of 100 bytes to mobile terminal, the One Way Delay value D of record data bag experience n3;
Step 607: server sends the packet of 1500 bytes to mobile terminal, guarantees mobile terminal state promotion to DCH state;
Step 608: after mobile terminal receives packet, carries out dormancy N second;
Step 609: mobile terminal and server carry out GPS or NTP clock synchronous;
Step 610: server sends the packet of 1500 bytes to mobile terminal.The One Way Delay D of record data bag experience n4; Circulate above step 603 step to step 610, needs circulation altogether 20 times;
Step 611: server sends 1500 byte data bags to mobile terminal, the One Way Delay D of record data bag experience 3.
Step 612: server sends the packet of 100 bytes to mobile terminal, the One Way Delay D of record data bag experience 4; If exist | D n4-D n3|-| D 4-D 3| >1000ms, then RRC state degraded mode is 613:DCH → FACH → IDLE.Otherwise, then judge that RRC state degraded mode is 614:DCH → IDLE.
Step 615: click and terminate, disconnects service end and is connected with between client.
With reference to the accompanying drawings 7, the concrete steps of RRC state demotion inactivity timer method of measurement are described:
Step 701: click and start, set up TCP and be connected between server with mobile terminal;
Step 702: arrange cycle counter initial value N be 0 and maximum execution number of times M be 20;
Step 703: server sends 1500 byte data bags to mobile terminal, guarantees mobile-terminal RRC state promotion to DCH state;
Step 704: after mobile terminal receives packet, carries out dormancy N second;
Step 705: mobile terminal and server carry out GPS or NTP clock synchronous;
Step 706: server sends the packet of 1500 bytes to mobile terminal, the One Way Delay D of record data bag experience n5; Repeat step step 703 to step 706, need circulation altogether 20 times;
Step 707: calculate record time delay D n5in the slope of adjacent twice measurement result, find the some n that there is slope sudden change, the corresponding dormancy time N of some n; If there is the some n of two slope sudden changes, respectively corresponding dormancy time N 1, N 2, then corresponding 708:DCH state switches the inactivity timer of IDLE state is N 2, the inactivity timer that DCH state is switched to FACH state is N 1, the inactivity timer that FACH state is switched to IDLE state is: N 2-N 1; If there is the some n of a slope sudden change, dormancy time N 3, then the inactivity timer of corresponding 709:DCH to IDLE is N 3.
Step 710: click and terminate, disconnects service end and is connected with between client.
With reference to the accompanying drawings 8, the concrete steps of RRC state promotion time-delay measuring method are described:
Step 801: click and start, set up TCP and be connected between server with mobile terminal;
Step 802: arrange cycle tiemr initial value N be 0 and maximum execution number of times M be 20;
Step 803: server sends a large byte data bag to mobile terminal, guarantees mobile-terminal RRC state promotion to DCH state;
Step 804: after mobile terminal receives packet, carries out dormancy N second;
Step 805: mobile terminal and server carry out GPS or NTP clock synchronous;
Step 806: server sends 1500 byte data bags to mobile terminal, the One Way Delay D of record data bag experience n6; Repeat step 803 to step 806, need circulation altogether 20 times;
Step 807: server sends 1500 byte data bags to mobile terminal, the One Way Delay D of record data bag experience 6;
Step 808: the time delay D calculating record n6in the slope of adjacent twice measurement result, find the some n that there is slope sudden change, the time delay that some n correspondence is measured is X; If there is the some n of two slope sudden changes, the corresponding time delay measured is X respectively 1, X 2, then corresponding 809:IDLE state is moved and is raised to DCH state handover delay and is: X 2-D 6, FACH state is moved and is raised to DCH state handover delay is X 1-D 6; If there is the some n of a slope sudden change, then correspondence 810: the corresponding time delay measured is X 3, IDLE state is moved and is raised to DCH state handover delay is X 3-D 6;
Step 811: click and terminate, disconnects service end and is connected with between client.
Trigger the FACH state computational methods relative complex to the data link threshold value of DCH state, and will distinguish and up, descendingly to calculate respectively.Upstream data sends out the mode of packet to server mainly through mobile terminal, descendingly sends out the mode of packet to mobile terminal mainly through server.
With reference to the accompanying drawings 9, the concrete steps of up data link threshold value method of measurement are described:
Step 901: click and start, set up TCP and be connected between server with mobile terminal;
Step 902: arrange cycle tiemr initial value n be 0 and maximum execution number of times M be 100;
Step 903: server sends the packet of 1500 bytes to mobile terminal, guarantees mobile-terminal RRC state promotion to DCH state;
Step 904: after mobile terminal receives packet, carries out dormancy N second;
Step 905: mobile terminal and server carry out GPS or NTP clock synchronous;
Step 906: server sends the packet of (100+n × 10) byte to mobile terminal, the One Way Delay D of record data bag experience n7; Repeat step 903 to step 906, need circulation altogether 100 times;
Step 907: the time delay D calculating record n7in the slope of adjacent twice measurement result, find the some m that there is slope sudden change;
Step 908: some m place correspondence sends packet (100+n*10) byte, is and triggers the up data link threshold value that FACH state is switched to DCH state.Wherein, n is cycle counter;
Step 909: click and terminate, disconnects service end and is connected with between client.
With reference to the accompanying drawings 10, the concrete steps of down data links threshold value method of measurement are described:
Step 1001: click and start, set up TCP and be connected between server with mobile terminal;
Step 1002: arrange cycle tiemr initial value n be 0 and maximum execution number of times M be 100;
Step 1003: mobile terminal sends 1500 byte data bags and guarantees mobile-terminal RRC state promotion to DCH state to server;
Step 1004: after mobile terminal receives packet, carries out dormancy N second, wherein N 1<N<N 2;
Step 1005: mobile terminal and server carry out GPS or NTP clock synchronous;
Step 1006: mobile terminal sends the packet of (100+n × 10) byte to server, the One Way Delay D of record data bag experience n8; Repeat step 1002 to step 1006, need circulation 100 altogether;
Step 1007: the slope calculating adjacent twice measurement result in the time delay D n8 of record, finds the some m that there is slope sudden change;
Step 1008: some m place correspondence sends packet (100+n*10) byte, is and triggers the down data links threshold value that FACH state is switched to DCH state.Wherein, n is cycle counter;
Step 1009: click and terminate, disconnects service end and is connected with between client.
These embodiments are interpreted as only being not used in for illustration of the present invention limiting the scope of the invention above.After the content of reading record of the present invention, technical staff can make various changes or modifications the present invention, and these equivalence changes and modification fall into the scope of the claims in the present invention equally.

Claims (9)

1. be applicable to a measuring system for UMTS network RRC state machine, it is characterized in that: comprise latency measurement module 401, result memory module 402 and results analyses module 403; Wherein
Latency measurement module 401: for measuring the One Way Delay of mobile terminal radio resource control RRC state machine in universal mobile telecommunications system UMTS network, between server and mobile terminal, pre-set server send the rule of packet to mobile terminal and the rule of mobile terminal reception packet, sending/receiving packet rule mainly comprises setting data bag size, Packet Generation/time of reception interval, between mobile terminal with service end, set up TCP be connected, and adopt GPS or ntp network time protocol clock synchronous method, calibration makes mobile terminal and service end reach clock synchronous, and one-way delay measurement result is sent to measurement result memory module 402,
Measurement result memory module 402: send the One Way Delay result of packet to mobile terminal for recording also storage server;
Time delay results analyses module 403: the time delay measures calling measurement result memory module 402, calculate the slope of adjacent twice measurement result, find the transition point that there is slope sudden change, determine the measurement time delay result that transition point place is corresponding and dormancy time, the characteristic compared with long time delay can be produced according to the different size data packet delay difference of sending/receiving and the switching of mobile-terminal RRC state, draw the parameter of mobile terminal radio resource control RRC state machine, specifically comprise state to move and rise promotion mode, state degradation demotion mode, state demotion inactivity timer is measured, state is moved and is risen promotion time delay, up data link threshold value and down data links threshold value.
2. be applicable to a method of measurement for UMTS network RRC state machine, it is characterized in that: comprise the following steps:
201, server is set in advance between server and mobile terminal and sends the rule of packet to mobile terminal and the rule of mobile terminal reception packet; Between mobile terminal with service end, set up TCP be connected, and adopt GPS or NTP (Network Time Protocol) NTP clock synchronous method, calibration makes mobile terminal and service end reach clock synchronous;
202, measure and record the one-way delay measurement result of server transmission packet to mobile terminal;
203, the slope of adjacent twice measurement result is calculated in one-way delay measurement result from step 202, find the transition point of slope sudden change, obtain measurement time delay result corresponding to transition point place and dormancy time delay, utilize transmission time difference and the switching of mobile-terminal RRC state needed for different size data bag can produce the characteristic compared with long time delay, draw mobile-terminal RRC state parameter switching time, specifically comprise the measurement of following parameter: state is moved and risen promotion mode, state degradation demotion mode, state demotion inactivity timer is measured, state is moved and is risen promotion time delay, up data link threshold value and down data links threshold value.
3. a kind of method of measurement being applicable to UMTS network RRC state machine according to claim 2, is characterized in that: in step 203, state is moved the measurement rising promotion mode and specifically comprised the following steps: (1) makes mobile terminal network interface be in idle condition; (2) server sends the packet of a little byte to mobile terminal; (3) service end and client carry out clock synchronous; (4) server sends the packet of a large byte to mobile terminal, treats that terminal receives packet, the One Way Delay D of record data bag experience 1; (5) server sends the packet of a large byte again to mobile terminal, treats that terminal receives packet, the One Way Delay D of record data bag experience 2, and D 2in do not comprise state handover delay; (6) if met | D 1-D 2| >500ms, then RRC state moves the mode of liter is IDLE → FACH → DCH; Otherwise, move for RRC state and rise mode IDLE → DCH.
4. a kind of method of measurement being applicable to UMTS network RRC state machine according to claim 2, is characterized in that: in step 203, the measurement of state degradation demotion mode specifically comprises the following steps: (1) arranges cycle tiemr initial value N and maximum execution number of times M; (2) server sends the packet of a large byte to mobile terminal; (3), after mobile terminal receives packet, dormancy N second is carried out; (4) service end and client carry out clock synchronous; (5) server sends the packet of a little byte to mobile terminal, the One Way Delay value D of record data bag experience n3; (6) server sends the packet of a large byte again to mobile terminal; (7), after mobile terminal receives packet, dormancy N second is carried out; (8) service end and client carry out clock synchronous; (9) server third time sends the packet of a large byte to mobile terminal.The One Way Delay D of record data bag experience n4; (10) the above step that circulates (2) ~ (9), need circulation M-N time altogether; (11) server sends again a large byte data bag to mobile terminal, the One Way Delay D of record data bag experience 3; (12) server sends a little byte data bag to mobile terminal, the One Way Delay D of record data bag experience 4; (13) if exist | D n4-D n3|-| D 4-D 3| >1000ms, then RRC state degraded mode is DCH → FACH → IDLE, otherwise, then judge that RRC state degraded mode is DCH → IDLE.Wherein, N is cycle counter.
5. a kind of method of measurement being applicable to UMTS network RRC state machine according to claim 2, is characterized in that: the measurement of state degradation demotion inactivity timer specifically comprises the following steps: (1) arranges cycle tiemr initial value N and maximum execution number of times M; (2) server sends a large byte data bag to mobile terminal; (3) after mobile terminal receives packet, dormancy N second is carried out; (4) service end and client carry out clock synchronous; (5) server sends the packet of a large byte again to mobile terminal, the One Way Delay D of record data bag experience n5; (6) repeat step (2) ~ (5), need circulation M-N time altogether; (7) record time delay D is calculated n5in the slope of adjacent twice measurement result, find the some n that there is slope sudden change, the corresponding dormancy time N of some n; (8) if there is the some n of two slope sudden changes, corresponding dormancy time N respectively 1, N 2.Then DCH state is switched to the inactivity timer of IDLE state is N 2, the inactivity timer that DCH state is switched to FACH state is N 1, the inactivity timer that FACH state is switched to IDLE state is N 2-N 1; If there is the some n of a slope sudden change, corresponding dormancy time N 3.The inactivity timer that DCH state is switched to IDLE state is N 3, wherein, N is cycle counter.
6. a kind of method of measurement being applicable to UMTS network RRC state machine according to claim 2, is characterized in that: state promotion time-delay measuring method comprises the following steps: (1) arranges cycle tiemr initial value N and maximum execution number of times M; (2) server sends a large byte data bag to mobile terminal; (3) after mobile terminal receives packet, dormancy N second is carried out; (4) service end and client carry out clock synchronous; (5) server sends the packet of a large byte again to mobile terminal, the One Way Delay D of record data bag experience n6; (6) repeat step (2) ~ (5), need circulation M-N time altogether; (7) server sends again a large byte data bag to mobile terminal, the One Way Delay D of record data bag experience 6; (8) time delay D of record is calculated n6in the slope of adjacent twice measurement result, find the some n that there is slope sudden change, the time delay that some n correspondence is measured is X; (9) if there is the some n of two slope sudden changes, the corresponding time delay measured is X respectively 1, X 2, IDLE state is moved and is raised to DCH state handover delay is X 2-D 6, FACH state is moved and is raised to DCH state handover delay is X 1-D 6; If there is the some n of a slope sudden change, measurement time delay is X 3, IDLE state is moved and is raised to DCH state handover delay is X 3-D 6, wherein, N is cycle counter.
7. a kind of method of measurement being applicable to UMTS network RRC state machine according to claim 2, is characterized in that: in step 203, the determination of up data link threshold value comprises following concrete steps: (1) arranges cycle tiemr initial value n and maximum execution number of times M; (2) server sends a large byte data bag to mobile terminal; (3) after mobile terminal receives packet, dormancy N second is carried out; (4) service end and client carry out clock synchronous; (5) server sends the packet of (100+n*10) byte to mobile terminal, the One Way Delay D of record data bag experience n7; (6) repeat step (2) ~ (5), need circulation M-n time altogether; (7) time delay D of record is calculated n7in the slope of adjacent twice measurement result, find the some m that there is slope sudden change, the size that some m place correspondence sends packet is (100+n*10) byte, is and triggers the up data link threshold value that FACH state is switched to DCH state, wherein, n is cycle counter.
8. a kind of method of measurement being applicable to UMTS network RRC state machine according to claim 2, is characterized in that: in step 203, the determination of down data links threshold value comprises following concrete steps: (1) arranges cycle tiemr initial value n and maximum execution number of times M; (2) mobile terminal sends a large byte data to packet server; (3) after mobile terminal receives packet, dormancy N second is carried out, wherein N 1<N<N 2; (4) service end and client carry out clock synchronous; (5) mobile terminal sends (100+n*10) byte data bag to server, the One Way Delay D of record data bag experience n8; (6) repeat step (2) ~ (5), need circulation M-n time altogether; (7) time delay D of record is calculated n8in the slope of adjacent twice measurement result, find the some m that there is slope sudden change, the size that some m place correspondence sends packet is (100+n*10) byte, is and triggers the down data links threshold value that FACH state is switched to DCH state, wherein, n is cycle counter.
9. according to a kind of method of measurement being applicable to UMTS network RRC state machine one of claim 3-8 Suo Shu, it is characterized in that: the size of large packet is 1500 bytes, and the size of small data is 100 bytes.
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