CN100433903C

CN100433903C - State transfer method for mobile terminal

Info

Publication number: CN100433903C
Application number: CNB2005100514311A
Authority: CN
Inventors: 曾玲玲; 程翔; 崔颖川
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2005-03-04
Filing date: 2005-03-04
Publication date: 2008-11-12
Anticipated expiration: 2025-03-04
Also published as: CN1829379A

Abstract

The present invention discloses a state transfer method for a mobile terminal, which comprises the following steps that 1) a reset failing threshold of a mobile terminal to a paging channel is set; 2) a radio network controller instructs the mobile terminal to transfer into the paging channel, and if the transfer is success, a corresponding reset failing counter is initialized; if the transfer fails, an instruction counter is added with one, and counting results are compared with corresponding thresholds; if the counting results are smaller than the corresponding thresholds, the process comes back to the step 2), and if the counting results are greater than or equal to the corresponding thresholds, the process comes to step 3); 3) the radio network controller instructs the mobile terminal to directly enter an idle mode. The present invention determines whether the mobile terminal is directly transferred into the idle mode or not according to the failing times of the mobile terminal resetting on CELL_PCH, and thus, the present invention avoids the invalid consumption of RAN resources and enhances the fault-tolerant capability of RAN systems.

Description

The status of mobile terminal moving method

Technical field

The present invention relates to a kind of moving method of portable terminal channel status.

Background technology

In 3-G (Generation Three mobile communication system), the control signaling mainly is radio resource control RRC (Radio ResourceControl) message between mobile terminal UE (User Equipment) and the wireless access network RAN (Radio Access Network).RRC connects be UE with the RRC protocol layer of RAN between being connected of a kind of bi-directional point to multipoint of setting up.Concerning a UE, exist a RRC to connect at the most.RRC is connected between UE and the UTRAN and transmits radio network signaling, as carries out wireless resource allocation or the like.RRC sets up at the beginning of being connected call setup, discharges behind end of conversation, and keeps during this period always.From rrc layer, the UE basic manipulation mode is divided into idle pulley and connection mode, and connection mode is further divided into different service conditions, and these service conditions have defined the physical channel kind that UE uses.As shown in Figure 1, each pattern of UE and state and possible transformational relation between them have been described.When RRC connected release or RRC connection failure, UE left connection mode and enters idle pulley.At CELL_DCH (DCH, Dedicated Channel, DPCH) under the state, RAN need be the UE dedicated physical channels allocated, this channel is responsible for transmitting the data (for example voice or packet data) on upper strata, can change transmission rate dynamically in the frame transport process.At CELL_FACH (FACH, Forward Link Access Channel, forward access channel) under the state, UE does not take DPCH, and use RACH (Random Access Channel, Random Access Channel) and FACH common signal channel to come signaling message transmission and a spot of user face data.Under CELL_PCH (PCH, Paging Channel, paging channel) state, RAN gets in touch by paging channel PCH and UE.Under this state, the power consumption of UE is lower than the power consumption of other any state.

For packet domain non real-time class business, long-time when inactive if UE does not have real business demand, can be with UE from CELL_DCH or the CELL_FACH CELL_PCH state of moving into.Like this, UE can farthest reduce power consumption, and for network side RAN, resource consumption also can drop to minimum simultaneously.

Yet not all portable terminal can both be supported the state transition of CELL_PCH; On the other hand, when UE occurs when unusual or channel quality when poor, moving to CELL_PCH may fail.When the migration failure, common practices is the RRC state that keeps original, after this attempts the migration of PCH again by the inactivity continuous triggering of monitoring in real time of business.Owing to there is not real business demand, the resource of network side RAN is actually to be disabled and has taken.If UE is in the CELL_DCH state originally owing to monopolize private resource, RAN system resource in this case is invalid expend just particularly serious.Resource invalid expends the reduction that will cause power system capacity.

Therefore need provide a kind of suitable method to solve this problem, reduce with the power system capacity of avoiding abnormal conditions to be caused.

Summary of the invention

Move existing problem and shortage at channel status in the above-mentioned existing wireless communications process, thereby the purpose of this invention is to provide the invalid status of mobile terminal moving method that improves the RAN Fault Tolerance that expends of a kind of RAN of avoiding resource.

The present invention is achieved in that a kind of status of mobile terminal moving method, may further comprise the steps:

1) threshold value of portable terminal to the failure of paging channel reprovision is set;

2) radio network controller (RNC, Radio Network Controller) the instruction portable terminal paging channel (PCH) of moving into, if move into successfully, the corresponding reprovision fail counter of initialization then; If move into failure, then instruct the reprovision fail counter to add 1, and compare count results and respective threshold, if count results is less than respective threshold, then re-execute step 2) the described radio network controller instruction portable terminal paging channel of moving into, if more than or equal to respective threshold, enter step 3);

3) radio network controller instruction portable terminal (IDLE) pattern that directly enters the free time.

Preferably, the threshold value of described reprovision failure is to be provided with like this:

At first different priority to each business setting, and the threshold value of corresponding reprovision failure is set by professional priority level difference.

Preferably, the described concrete rule of threshold value that the failure of corresponding reprovision is set by professional priority level difference is: the reprovision failure threshold value of high-priority service is not less than the reprovision failure threshold value of low priority traffice.

Preferably, the described portable terminal paging channel of moving into specifically is meant: portable terminal is by forward access channel (FACH) and DPCH (DCH) paging channel of moving into.

Preferably, the move into trigger condition of paging channel of described radio network controller instruction portable terminal is: portable terminal does not have real business demand and inactive for a long time.

The present invention is divided into different priority with business, and by service priority different PCH reprovision failure threshold values is set.When radio network controller (RNC) finds that portable terminal is moved to the failure of CELL_PCH state, utilize the reprovision fail counter statistics of failing, if the portable terminal failure reaches certain degrees of tolerance (threshold value), then RNC directly migrates to IDLE with portable terminal, just carry out RRC and discharge, this terminal all is released in all resources that RAN occupies.

The present invention determines whether directly portable terminal to be moved into idle pulley according to the portable terminal reprovision to the CELL_PCH frequency of failure, thereby make RAN energy compatible processing not support the portable terminal of CELL_PCH or operation exception, avoid that the RAN resource is invalid to be expended, thereby improve the RAN system survivability.The inventive method is simple, effective, possess very strong promotional value.

Description of drawings

Below in conjunction with accompanying drawing the present invention is illustrated in further detail:

Fig. 1 is each mode state migration schematic diagram of existing portable terminal;

Fig. 2 concrete process chart of the present invention.

Embodiment

As shown in Figure 2, the present invention may further comprise the steps respectively:

101) at first need to be provided with the PCH reprovision failure threshold value of portable terminal (UE).Be specially, the RNC miscellaneous service is set to different priority, and mapping table professional and PCH reprovision failure threshold value is set.Mapping ruler is: the PCH reprovision failure threshold value of high-priority service is not less than the PCH reprovision failure threshold value of low priority traffice.If there is M kind service priority, rank 1 expression limit priority, 2,3, the rank of 4...M-1 reduces successively, rank M represents lowest priority; There is K kind PCH reprovision threshold value, Count_1＞=Count_2＞=...＞=Count_k＞=1; Then the mapping relations of service priority and PCH reprovision failure threshold value can be as shown in the table:

Service priority	PCH reprovision failure threshold value
Service priority	PCH reprovision failure threshold value	Rank 1～level n ₁	Count_1
Level n ₁～level n ₂	Count_2	Rank 1～level n ₁	Count_1
Level n ₁～level n ₂	Count_2	...	...
Level n _k-1～rank M	Count_k	...	...

102) RNC looks into the mapping table of setting up in 101 steps according to service priority, obtains UE PCH reprovision failure threshold value; And initialization UE PCH reprovision failure statistical counter.

201) UE is current when being in CELL DCH or CELL_FACH, continues to keep inertia if RNC monitors UE, and then RNC sends RRC signaling message---radio bearer reprovision to UE, the indication UE CELL_PCH that moves into.If move into failure, enter 202), otherwise enter 301).

202) RNC receives the RRC signaling message that UE responds---the failure of radio bearer reprovision, and RNC carries out fail count, promptly fail count adds 1, and enters 302).

301) rising no longer is continuously 0 if traffic carrying capacity appears in UE, and perhaps UE responds radio bearer reprovision (moving to CELL_PCH) success, and then RNC resets the PCH reprovision failure statistical counter of this UE.

302) RNC detection counter compares the frequency of failure and the respective threshold of UE reprovision to PCH, if less than this respective threshold, then returns 201); If equal or exceed this respective threshold, then enter step 303).

303) carrying out RRC discharges.Thereby UE enters idle pulley, and all resources relevant with this UE are released among the RAN.

Claims

1. status of mobile terminal moving method may further comprise the steps:

2) the radio network controller instruction portable terminal paging channel of moving into, if move into successfully, the corresponding reprovision fail counter of initialization then; If move into failure, then instruct the reprovision fail counter to add 1, and compare count results and respective threshold, if count results is less than respective threshold, then re-execute step 2) the described radio network controller instruction portable terminal paging channel of moving into, if more than or equal to respective threshold, enter step 3);

3) radio network controller instruction portable terminal directly enters idle pulley.

2. status of mobile terminal moving method as claimed in claim 1 is characterized in that, the threshold value of described reprovision failure is to be provided with like this:

3. status of mobile terminal moving method as claimed in claim 2, it is characterized in that the described concrete rule of threshold value that the failure of corresponding reprovision is set by professional priority level difference is: the reprovision failure threshold value of high-priority service is not less than the reprovision failure threshold value of low priority traffice.

4. status of mobile terminal moving method as claimed in claim 1 is characterized in that, the described portable terminal paging channel of moving into specifically is meant: portable terminal is by forward access channel and the DPCH paging channel of moving into.

5. status of mobile terminal moving method as claimed in claim 1 is characterized in that, the move into trigger condition of paging channel of described radio network controller instruction portable terminal is: portable terminal does not have real business demand and inactive for a long time.