CN1878421A - Method for carrying out switching on activated state access terminal - Google Patents
Method for carrying out switching on activated state access terminal Download PDFInfo
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- CN1878421A CN1878421A CNA2006101062941A CN200610106294A CN1878421A CN 1878421 A CN1878421 A CN 1878421A CN A2006101062941 A CNA2006101062941 A CN A2006101062941A CN 200610106294 A CN200610106294 A CN 200610106294A CN 1878421 A CN1878421 A CN 1878421A
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Abstract
The invention relates to a method for switching the activated access terminal between the access networks or arc sections. Wherein, it comprises: the present access network receives the message from access terminal, and compares the pilot strengths of the arc section with strongest pilot frequency strength in present access network and the arc section with weakest pilot frequency strength in nearby access network; when the difference between the strongest pilot frequency strength of nearby access network and the strongest pilot frequency strength of present access network is over the preset threshold value, the present access network sends message to the access terminal and releases wireless interface connection, to transfer the access terminal into idle condition; the idle access terminal switches into the arc section of nearby access network with strongest pilot frequency strength. The inventive method can reduce the effect of switch on the data transmission property. And similar method can be used to switch the activated access terminal between the arc sections with leaked match nearby relationship.
Description
Technical field
The present invention relates to a kind of activated state moves and accesses terminal between the Access Network or the method for switching between the sector.
Background technology
CDMA2000 is the honeycomb standard type mobile communication system of a new generation, and it comprises that main is the CDMA2000 1x system of purpose and the CDMA2000 1xEV-DO system that only supports data service etc. so that speech business to be provided.The CDMA2000 mobile communication system is by base station controller (Base Station Controller, BSC) base station transceiver system that is connected with it (Base Tranceiver System, BTS) (Access Terminal AT) provides voice or data service in order to access terminal.In the CDMA2000 system, BSC and the base station transceiver system that is connected with it (Base Tranceiver System, BTS) (Access NET, AN), each Access Network has a plurality of sectors that cover zones of different and comes to provide service for accessing terminal of diverse location to be generically and collectively referred to as an Access Network.
When moving when accessing terminal between different sectors, the CDMA2000 system switches to guarantee to access terminal by the sector and can obtain suitable sector and be its service, is unlikely to take place the interruption of call drop or data, services.When the target sector of switching and sector, source belonged to different Access Network (perhaps base station controller) respectively, this switching is called between Access Network switched.
CDMA2000 1x system mainly designs for purpose with the support voice business, real-time for communication is had relatively high expectations, so defined the method for between different Access Networks (perhaps base station controller), carrying out soft handover in the system protocol, made and switch the communication disruption duration elimination that causes.If can not carry out soft handover, system protocol has also defined the method for carrying out direct-cut operation between different Access Networks (perhaps base station controller), and the communication disruption duration that switching is caused is controlled in the extremely short scope.
And CDMA2000 1xEV-DO system (hereinafter to be referred as the EV-DO system) is less demanding for the real-time of communication mainly to support that data service is that purpose designs, and mainly pays close attention to the average transmission rate of data.Therefore, in CDMA2000 1xEV-DO agreement, only defined the method that Idle state accesses terminal and switches between different Access Networks.The essence of this switching is: target access network obtains High Rate Packet Data (High Rate PackageData by the A13 interface between Access Network from the source Access Network, HRPD) session information, realize the migration of session, thereby saved again and the process that accesses terminal and set up session and be configured negotiation in the target access network side.
Be simplified design, the EV-DO system protocol does not define activated state access terminal carries out soft handover between different Access Networks method.And, in the EV-DO system protocol, do not define the method for direct-cut operation, so activated state access terminal can not carry out direct-cut operation between different Access Networks yet.
In the superincumbent description, the activated state that accesses terminal be meant access terminal with Access Network between set up wave point and be connected, at this moment access terminal and can upload or data download by wave point.Corresponding with it, the Idle state that accesses terminal be meant access terminal with Access Network between the current wave point of not setting up be connected, but the Packet Control Function that accesses terminal (Packet Control Function, PCF) and packet data serving node (Packet Data Serving Node has between PDSN) end-to-end protocol (PPP) to connect.
In the EV-DO system, the Idle state triggering method of switching between different Access Networks that accesses terminal is: when Idle state accesses terminal the pilot frequency intensity that detects the sector in the new Access Network when also exceeding certain thresholding than the strongest sector pilot strength of the Access Network of current service, can report UATIRequest message by the access channel of sector in this new Access Network, switch between the Access Network that the triggering Idle state accesses terminal, thresholding recited above is by the chip decision that accesses terminal.
Specifically describe the Access Network method for switching between that Idle state accesses terminal in the EV-DO system below with reference to Fig. 1 and Fig. 2.
Among Fig. 1, along distributed respectively sector D, the E of sector A, B, C and Access Network 20 of Access Network 10 of the direction of reference axis X-axis.Suppose to have accessing terminal of an Idle state 30 to be in session status, and move to the sector of Access Network 20 D, E from sector A, B, the C of Access Network 10 with Access Network 10.30 meetings that access terminal in moving process continue the pilot frequency intensity (step 100) that detection respectively inserts the sector.
At this moment, the pilot frequency intensity of sector D, the E of Access Network 20 is along with this mobile meeting of 30 of accessing terminal strengthens gradually, and the pilot frequency intensity of sector A, the B of Access Network 10, C can weaken gradually.And, access terminal 30 can judge the threshold value (step 110) that whether determines of the difference of pilot frequency intensity and the pilot frequency intensity of the sector of current Access Network 10 of sector of other Access Network (comprising Access Network 20) above the chip that accesses terminal.
When accessing terminal 30 arrival geographical position 1, the difference of the pilot frequency intensity of the pilot frequency intensity of the sector D of Access Network 20 and the strongest sector C of current Access Network 10 surpasses the threshold value of the chip decision that accesses terminal, therefore, 30 access channels by sector D in the Access Network 20 that access terminal report UATIRequest message to give Access Network 20 (step 120).
Then, after Access Network 20 receives the 30 UATIRequest message that report that access terminal, just obtain High Rate Packet Data (HRPD) session information from Access Network 10 by the A13 interface between Access Network, 30 set up session (step 130) with accessing terminal, thereby realize the migration of session between Access Network, promptly switch between the Access Network that Idle state accesses terminal.
Be in Idle state when accessing terminal, data will be uploaded if accessed terminal, perhaps packet data serving node has data to pass to down to access terminal, access terminal and Access Network between can set up wave point and connect the transmission of finishing data, accessing terminal forwards activated state to from Idle state.
After transfer of data is finished, can by access terminal, Access Network or packet data serving node initiate to connect and discharge, accessing terminal forwards Idle state to from activated state.
Yet the EV-DO system protocol does not define activated state access terminal carries out soft handover or direct-cut operation between different Access Networks method.
A kind of existing realization feasible technical scheme of carrying out soft handover between different Access Networks that accesses terminal is by self-defining Access Network interface message, realizes that activated state access terminal carries out soft handover between different Access Networks.But the interface message of this criteria of right and wrong can't cooperate between the Access Network of different vendor, and the scope of application of this scheme is restricted.
Another kind of existing technical scheme is: the Access Network method for switching between that the connection of initiating based on accessing terminal discharges.In this scheme, when accessing terminal sector from current Access Network when move the sector of other Access Network, the pilot signal strength that it obtains from current Access Network sector can be more and more a little less than, can't correctly receive the data that current Access Network sector is transmitted until it.At this moment, access terminal and initiatively to discharge wireless connections, forward Idle state to from activated state.
When being in Idle state when accessing terminal, it can constantly detect the pilot signal that peripheral sectors transmits.When detecting sector pilot strength in the new Access Network if access terminal and having exceeded certain thresholding, access terminal and switch between the Access Network that can initiate Idle state, be transformed into the sector of this new Access Network than the sector pilot strength of current Access Network.
Access terminal finish between the Idle state Access Network switch after because data transfer task is not finished, the initiator of task accesses terminal or packet data serving node, can initiate once more to connect by the sector of this new Access Network and set up.After connection was set up and finished, accessing terminal transferred activated state to from Idle state, thereby has finally finished the process that activated state access terminal switches between different Access Networks.
Specifically describe according to the prior art the Access Network method for switching between of activated state access terminal in the EV-DO system below with reference to Fig. 3 and Fig. 4.
Among Fig. 3, identical with Fig. 1, along distributed respectively sector D, the E of sector A, B, C and Access Network 20 of Access Network 10 of the direction of reference axis X-axis.Suppose to have accessing terminal of an activated state 30 to be in the data communication state, and move to the sector of Access Network 20 D, E from sector A, B, the C of Access Network 10 by Access Network 10 and packet data serving node (not shown).30 meetings that access terminal in moving process continue to detect the pilot frequency intensity (step 200) of each sector, and judge whether correctly to receive data (step 210).
At this moment, the pilot frequency intensity of sector D, the E of Access Network 20 is along with this mobile meeting of 30 of accessing terminal strengthens gradually, and the pilot frequency intensity of sector A, the B of current Access Network 10, C can weaken gradually.
For example, when accessing terminal 30 arrival geographical position 2, the pilot frequency intensity of the sector D of Access Network 20 surpasses threshold value Pilot_Add, accesses terminal 30 by the sector D adding Active Set of routing update message (RouteUpdate message) notice Access Network 10 with Access Network 20.But owing to there is not soft handover between Access Network, Access Network 10 can't add Active Set with the sector D of Access Network 20.Along with current Access Network 10 sector A, B, C pilot frequency intensity continue die down and the continuation grow of the pilot frequency intensity of the sector D of Access Network 20, access terminal and 30 continue to report routing update message, attempt the sector D of Access Network 20 is added Active Set.
For example, when accessing terminal 30 arrival geographical position 3, the sector D that pilot frequency intensity is the strongest in the Access Network 20 is better than the strongest sector C of pilot frequency intensity in the Access Network 10, and the difference between the strongest pilot frequency intensity surpasses the threshold value of the chip decision that accesses terminal.But owing to do not define soft handover between the Access Network of activated state access terminal, accessing terminal of activated state 30 can't switch to Access Network 20 from Access Network 10.
When accessing terminal 30 arrival geographical position 4, the pilot frequency intensity of the sector C that Access Network 10 pilot frequency intensities are the strongest has been lower than pilot tone and has added threshold value Pilot_Add, although may connect speed descends, still can the received communication data, therefore this moment, activated state access terminal 10 still communicated with the very weak Access Network 10 of pilot frequency intensity, rather than the very strong Access Network 20 of pilot frequency intensity communicates.
Up to accessing terminal 30 when arriving geographical position 5, access terminal this moment and 30 can't correctly accept communication data, thereby initiatively discharge wireless connections, forward Idle state (step 220) to from activated state.
Therefore, in the geographical position 5,30 are in Idle state owing to access terminal, and the difference between the pilot frequency intensity of the pilot frequency intensity of the sector E that the pilot frequency intensity of Access Network 20 is the strongest and the strongest sector C of pilot frequency intensity of Access Network 10 is greater than the thresholding by the chip decision of accessing terminal, so Idle state accesses terminal and 30 will finish and switch (step 230) between Access Network.
Finish between the Idle state Access Network switch after, because data transfer task is not finished, the initiator of task, access terminal 30 or packet data serving node, can initiate once more to connect by the sector of new Access Network 20 and connect, thereby accessing terminal 30 transfers activated state (step 240) to from Idle state, finally finishes the process that activated state access terminal 30 switches between different Access Networks.
The deficiency of this technology mainly shows in the influence to single user throughput, sector throughput, switching promptness.
Influence for single user throughput at first is discussed, when considering following situation:, along with move to the sector of other Access Network the sector that accesses terminal from current Access Network, the center, sector of the current Access Network of the distance that accesses terminal is far, and very near from the center, sector of new Access Network.Owing between different Access Networks, can not carry out soft handover,, all the sector of current Access Network in the Active Set that accesses terminal so the sector of new Access Network can not be added into the Active Set that accesses terminal.Because the pilot frequency intensity of these sectors is all very weak, therefore only under lower message transmission rate, the data transmission quality on the Radio Link just can remain on below certain Packet Error Ratio.Yet, reduce message transmission rate and can make the data transmission quality on the Radio Link be unlikely to deteriorate into the degree that causes the wave point connection to be released.Continue to reside on the current Access Network with lower message transmission rate thereby access terminal.In this case, this user's data throughput obviously has been depressed.
Secondly, this method can influence sector throughput.For the sector that is in different Access Network intersections, be depressed because pass through the user's on Access Network border throughput in the sector, this sectors of data throughput obviously also can be depressed.If user's distribution concentrates on the Access Network border more, the depressed degree of sector throughput can be big more.
At last, this method can influence the promptness of switching.Oppositely may there be unbalanced phenomenon in the preceding of Radio Link, like this forward direction radio link quality deteriorate into that making accesses terminal and initiate to discharge wave point connect in, possible reverse wireless link quality more worsens, and causes Access Network can not correctly receive the message that accesses terminal and report.Like this, that has only Access Network side setting by the time is discharged into the Idle state timer expiry, just can initiate to discharge the wave point connection by Access Network.Cause the delay of switching between Access Network except discharge the wave point connection by accessing terminal, this phenomenon may cause the further delay of switching between Access Network, and single user throughput and sector throughput are caused further influence.
In addition, CDMA2000 1x and CDMA2000 1xEV-DO dual-mode access terminal are when carrying out data service at present, can between CDMA2000 1x and CDMA2000 1xEV-DO system, switch, promptly switch to the Access Network of CDMA2000 1xEV-DO system, perhaps switch to the Access Network of CDMA20001x system from the Access Network of CDMA2000 1xEV-DO system from the Access Network of CDMA2000 1x system.For these two kinds of switchings, there is not suitable changing method at present.
In addition, in the Access Network of Access Network that uses CDMA2000 1xEV-DO system or use CDMA20001x system, when the active MS (accessing terminal) of execution data service switches between the sector, switch and generally must between the sector that has disposed neighbouring relations (neighbouring relations are the very important network planning and parameters optimization), carry out.Join in leakage under the situation of neighbouring relations, promptly the difference of the pilot frequency intensity of adjacent sectors and current service sector satisfy have been switched requirement, but when this adjacent sectors is not configured in the adjacent sectors tabulation that accesses terminal, can influence the promptness of switching.
Summary of the invention
Therefore, the object of the present invention is to provide a kind of method of between Access Network, activated state access terminal being switched, to realize that activated state access terminal switches between different Access Networks, guarantee after switching is finished, to connect and still can exist, the data transfer task of carrying out still can be proceeded, and reduces switching as much as possible to the transfer of data Effect on Performance.
Method of the present invention goes for accessing terminal and switches between the different Access Networks of CDMA 1xEV-DO system, perhaps switch to the Access Network of CDMA 1xEV-DO system, perhaps switch to the Access Network of CDMA2000 1x system from the Access Network of CDMA 1xEV-DO system from the Access Network of CDMA2000 1x system.
Another object of the present invention is to provide the method for between a kind of sector of joining neighbouring relations in leakage activated state access terminal being switched, avoid the leakage of adjacent sectors to match in the influence of the promptness of switching.This method goes at the Access Network that uses CDMA2000 1xEV-DO system or uses in the Access Network of CDMA2000 1x system, carries out accessing terminal of data service and switches between the sector that does not dispose neighbouring relations.
According to the present invention, the method for between Access Network activated state access terminal being switched mainly may further comprise the steps:
The message that current Access Network accesses terminal and sends, and the pilot frequency intensity between the sector that pilot frequency intensity is the strongest in sector that pilot frequency intensity is the strongest in the more current Access Network and the adjacent networking; When the strongest pilot frequency intensity exceeded predetermined threshold than the strongest pilot frequency intensity of current Access Network in adjacent networking, current Access Network sent message to accessing terminal, and discharges wave point and connects, and making accesses terminal moves to Idle state; Idle state accesses terminal and switches to the strongest sector of pilot frequency intensity in the adjacent networking.
Specifically, above-mentioned Access Network is to use the Access Network of CDMA2000 1xEV-DO system or uses the Access Network of CDMA2000 1x system, switches and also can carry out between these two kinds of different Access Networks.
Wherein, described thresholding is more than or equal to the Idle state handoff threshold that accesses terminal above.
Further, described thresholding can be set according to the slow fading and the rapid fading situation of current Access Network and adjacent networking intersection pilot signal.
In addition, go between the sector of neighbouring relations is joined in leakage, activated state access terminal being switched at the similarity method of the method for between Access Network activated state access terminal being switched, can switch timely, avoid because the influence that the leakage pairing of adjacent sectors is switched.
According to a kind of form of the present invention, join the method for between the sector of neighbouring relations activated state access terminal being switched in leakage and may further comprise the steps:
The message that current Access Network accesses terminal and sends, and adjacent sectors that relatively pilot frequency intensity is the strongest and the pilot frequency intensity between the current service sector; Pilot frequency intensity at the pilot frequency intensity of the adjacent sectors serving sector stronger than current pilot intensity exceeds predetermined threshold, and this adjacent sectors is that the leakage of current service sector is when joining the sector of neighbouring relations, then send message to accessing terminal, the release wave point connects, and making accesses terminal moves to Idle state; Idle state accesses terminal and switches to described adjacent sectors.
Specifically, above-mentioned Access Network can be to use the Access Network of CDMA2000 1xEV-DO system or use the Access Network of CDMA2000 1x system, switches in the Access Network that uses CDMA2000 1xEV-DO system or uses between the sectors different in the Access Network of CDMA2000 1x system and carry out.
Wherein, described thresholding is more than or equal to the Idle state handoff threshold that accesses terminal above.
Further, described thresholding can be joined the sector of neighbouring relations and the slow fading and the rapid fading situation of current service sector intersection pilot signal set according to leakage.
Method of the present invention still can exist guaranteeing to connect after switching is finished, under the condition that the data transfer task of carrying out still can be proceeded, can reduce the influence of switching as much as possible to data transmission performance indexs such as single user throughput, sector throughput.
Description of drawings
Fig. 1 being defined between Access Network that be explanation according to CDMA2000 1xEV-DO agreement to the access terminal schematic diagram of the example that switches of Idle state;
Fig. 2 is that Idle state accesses terminal and realizes the flow chart of the process switched between Access Network in the example of key diagram 1;
Fig. 3 is the schematic diagram that the example that between Access Network activated state access terminal is switched according to a kind of method of prior art is described;
Fig. 4 is the flow chart that activated state access terminal is realized the process switched between Access Network in the example of key diagram 3;
Fig. 5 is the schematic diagram of the example that between Access Network activated state access terminal switched of explanation the method according to this invention;
Fig. 6 is the flow chart that activated state access terminal is realized the process switched between Access Network in the example of key diagram 5.
Embodiment
Unlike the prior art be, the present invention is not a little less than waiting pilot signal strength that terminal to be accessed obtains in current Access Network sector more and more, when it can't correctly receive the data that transmit current Access Network sector, initiatively discharge wave point and connect the switching that realizes between Access Network, but initiatively discharge the wave point connection appropriate opportunity by access network selection, realize the switching between Access Network.
Just, in the present invention, when accessing terminal from current Access Network sector when move other Access Network sector, the pilot frequency intensity of new Access Network sector can strengthen gradually, the pilot frequency intensity of current Access Network sector can weaken gradually, and beginning the target access network sector pilot strength from certain geographic area will be above the pilot frequency intensity of current Access Network sector.The routing update message that current Access Network reports from accessing terminal, recognize under the situation of this information, can be when new Access Network sector and current Access Network sector pilot strength difference surpass the thresholding of a setting, initiatively discharge wave point and connect, thereby switching to call out in time by the Idle state between Access Network moves on the target access network.
Fig. 5 provides a specific embodiment of the method for between Access Network activated state access terminal being switched of the present invention, and is as follows with reference to the flow chart specific descriptions of figure 6.
Among Fig. 5, identical with Fig. 1 and Fig. 3, along distributed respectively sector D, the E of sector A, B, C and Access Network 20 of Access Network 10 of the direction of reference axis X-axis.Suppose to have accessing terminal of an activated state 30 carrying out transfer of data, and move to the sector of Access Network 20 D, E from sector A, B, the C of Access Network 10 by Access Network 10 and data packet services node (not shown).The lasting detection of 30 meetings that accesses terminal in moving process respectively inserts the pilot frequency intensity of sector and by routing update message testing result is reported to Access Network 10 (step 300).
At this moment, the pilot frequency intensity of sector D, the E of Access Network 20 is along with this mobile meeting of 30 of accessing terminal strengthens gradually, and the pilot frequency intensity of sector A, the B of Access Network 10, C can weaken gradually.
For example, when accessing terminal 30 arrival geographical position 2, the pilot frequency intensity of the sector D of Access Network 20 surpasses threshold value Pilot_Add, accesses terminal 30 by the sector D adding Active Set of routing update message notice Access Network 10 with Access Network 20.But owing to there is not soft handover between Access Network, Access Network 10 can't add Active Set with the sector D of Access Network 20.Along with current Access Network 10 sector A, B, C pilot frequency intensity continue die down and the continuation grow of the pilot frequency intensity of the sector D of Access Network 20, access terminal and 30 continue to report routing update message, attempt the sector D of Access Network 20 is added Active Set.
In addition, Access Network 10 will judge the sector that other Access Network pilot frequency intensity is the highest pilot frequency intensity whether than it the highest sector of pilot frequency intensity exceed the thresholding (step 310) of a setting.
Then, when arriving geographical position 6, the sector D that pilot frequency intensity is the strongest in the Access Network 20 is better than the strongest sector C of pilot frequency intensity in the Access Network 10, and the difference between the strongest pilot frequency intensity surpasses setting thresholding Dormant_Threshold (this setting thresholding is greater than the Idle state handoff threshold of the chip decision that accesses terminal).Access Network 10 is by detecting this situation in 30 routing update messages that continue to report that access terminal, and sends connection closed message immediately to accessing terminal 30, discharges wave point and connects, and making accesses terminal 30 moves to Idle state (step 320).
Therefore, in the geographical position 6,30 are in Idle state owing to access terminal, and the difference between the pilot frequency intensity of the pilot frequency intensity of the sector D of Access Network 20 and the strongest sector C of pilot frequency intensity of Access Network 10 is greater than the thresholding by the chip decision of accessing terminal, and therefore accesses terminal 30 will finish Idle state and switch (step 330).Afterwards, initiate to be connected with reference to described the accessing terminal of figure 3 and Fig. 4 that to discharge the situation of switching between realization activated state Access Network the same with top, access terminal 30 or the packet data serving node (not shown) can initiatively initiate to connect and set up process, return activated state (step 340) again thereby access terminal.Thereby activated state access terminal 30 switches to Access Network 20 from Access Network 10.
The value of setting thresholding Dormant_Threshold among the present invention is to the systematic function important influence, and specific requirement is as follows:
A. the value of setting thresholding Dormant_Threshold be equal to or greater than by the inside chip decision of access terminal (for example mobile phone), trigger the pilot frequency intensity difference threshold of switching between the Idle state Access Network, access terminal like this move to Idle state after, can trigger immediately between the Access Network of Idle state and switch, set up and can not initiate to connect at current Access Network again.
B. under the prerequisite of a that satisfies condition, the value of setting thresholding Dormant_Threshold also will be adjusted according to the slow fading and the rapid fading situation of the pilot signal of each Access Network intersection.The slow fading of pilot signal has reflected apart from the influence of base station distance to pilot frequency intensity, thereby has reflected apart from the influence of base station distance to message transmission rate.The rapid fading of pilot signal has reflected the degree of pilot frequency intensity fluctuation, thereby whether reflection may cause table tennis to switch.Switch by reasonably adjusting the value of setting thresholding Dormant_Threshold, can triggering between Access Network in time on the one hand, improve system performance index such as single user throughput, sector throughput to greatest extent; The table tennis that can as far as possible reduce on the other hand between Access Network switches, and reduces the influence of the fluctuation of pilot frequency intensity to systematic function.Because can comprise a plurality of Access Networks in the system, each Access Network comprises a plurality of sectors again, so will comprise a plurality of Access Network intersections in the system, each Access Network intersection comprises a plurality of sectors intersection again.The slow fading of the pilot signal of each sector intersection is different with the rapid fading situation, and therefore, can set different handoff threshold value Dormant_Threshold to the different sectors intersection of different Access Network intersections.
The beneficial effect that technical solution of the present invention is brought is: can avoid the problem that may occur in the prior art effectively, promptly when existing pilot frequency intensity preferably during the sector in the adjacent networking, access terminal and still rest in the relatively poor sector of current pilot intensity, keeping lower message transmission rate, thereby making systematic function can not get fully playing.
Though technical solution of the present invention is to propose at the problem that activated state access terminal switches between the different Access Networks of CDMA 2000 1xEV-DO systems, but initiate to connect release by the network equipment among the present invention and realize that the thought of switching is equally applicable to carry out the switching of activated state dual-mode access terminal between the Access Network of CDMA2000 1x and CDMA2000 1xEV-DO system of data service, be applicable to also at the Access Network that uses CDMA2000 1xEV-DO system or use in the Access Network of CDMA2000 1x system that the activated state access terminal of carrying out data service is joined the switching of in time carrying out under the situation of neighbouring relations between the sector in leakage.
At first, activated state CDMA2000 1x that carries out data service and the situation that CDMA2000 1xEV-DO dual-mode handset (accessing terminal) switches are described between the Access Network of CDMA2000 1x and CDMA2000 1xEV-DO system.At this moment, CDMA2000 1x system all is connected to identical packet data serving node with the 1xEV-DO system.When carrying out data service, if dual-mode handset works in CDMA2000 1xEV-DO pattern, it can monitor the pilot signal strength of CDMA2000 1x system simultaneously, and reporting Access Network by routing update message, this just can utilize thought of the present invention to realize that mobile phone switches to the activated state of CDMA2000 1x system from CDMA2000 1xEV-DO system.
Promptly, when the pilot frequency intensity of the sector of CDMA2000 1x Access Network during than the thresholding of the pilot frequency intensity overshoot of the sector of the pilot frequency intensity maximum of current C DMA2000 1xEV-DO Access Network, CDMA2000 1x Access Network sends connection closed message and discharges wave point to dual-mode handset.Then dual-mode handset can switch to CDMA2000 1x Access Network.
And if operating handset if the pilot signal strength of CDMA2000 1xEV-DO system can be monitored and report to dual-mode handset simultaneously, then can utilize thought of the present invention in CDMA2000 1x pattern equally.Here, it may be noted that, when operating handset during in CDMA2000 1x pattern, dual-mode handset is given CDMA2000 1x Access Network by reporting Pilot Strength Measurement Message (corresponding to the routing update message of CDMA2000 1xEV-DO pattern) with the pilot strength report of each sector (comprising the sector of CDMA2000 1xEV-DO Access Network and the sector of CDMA2000 1x Access Network).
Therefore, when the pilot frequency intensity of the sector of CDMA2000 1xEV-DO Access Network during than the thresholding of the pilot frequency intensity overshoot of the sector of the pilot frequency intensity maximum of current C DMA2000 1x Access Network, CDMA2000 1x Access Network sends call release message (corresponding to the connection closed message of CDMA2000 1xEV-DO pattern) and discharges wave point to dual-mode handset.Then dual-mode handset can switch to CDMA2000 1xEV-DO Access Network.
In addition, in the Access Network of Access Network that uses CDMA2000 1xEV-DO system or use CDMA20001x system, when the active MS (accessing terminal) of execution data service switches between the sector, switch and generally must between the sector that has disposed neighbouring relations (neighbouring relations are the very important network planning and parameters optimization), carry out.Join in leakage under the situation of neighbouring relations, can influence the promptness of switching.And the method according to this invention has been joined neighbouring relations even leak, and mobile phone is by monitoring residue pilot set, also can give Access Network the reporting signal strength of not joining for the pilot tone of the sector of adjacent area.If joining the sector of neighbouring relations, this leakage has better covering (leakage join the pilot frequency intensity of the sector pilot strength of neighbouring relations and current service sector difference surpass the handoff threshold of setting) in fact, the network equipment of Access Network just can initiatively initiate to connect and discharge, allow mobile phone be transformed into Idle state, cover the continuation execution data service of better sector thereby can switch to this.
In the above-mentioned method, handoff threshold also must be more than or equal to the Idle state handoff threshold that accesses terminal.And, therefore can set different handoff thresholds at sector intersections different in the Access Network because the slow fading of the pilot signal of each sector intersection of Access Network is different with the rapid fading situation.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (8)
1. a method of between Access Network activated state access terminal being switched is characterized in that, may further comprise the steps:
The message that current Access Network accesses terminal and sends, and the pilot frequency intensity between the sector that pilot frequency intensity is the strongest in sector that pilot frequency intensity is the strongest in the more current Access Network and the adjacent networking;
When the strongest pilot frequency intensity exceeded predetermined threshold than the strongest pilot frequency intensity of current Access Network in adjacent networking, current Access Network sent message to accessing terminal, and discharges wave point and connects, and making accesses terminal moves to Idle state;
Accessing terminal of Idle state switches to the strongest sector of pilot frequency intensity in the adjacent networking.
2. method according to claim 1 is characterized in that described thresholding is more than or equal to the Idle state handoff threshold that accesses terminal.
3. method according to claim 2 is characterized in that, described thresholding is to set according to the slow fading and the rapid fading situation of adjacent networking and current Access Network intersection pilot signal.
4. method according to claim 1 is characterized in that, described Access Network is to use the Access Network of CDMA2000 1x EV-DO system or uses the Access Network of CDMA2000 1x system.
5. the method for between a sector of joining neighbouring relations in leakage activated state access terminal being switched is characterized in that, may further comprise the steps:
The message that current Access Network accesses terminal and sends, and adjacent sectors that relatively pilot frequency intensity is the strongest and the pilot frequency intensity between the current service sector;
Pilot frequency intensity at the pilot frequency intensity of the adjacent sectors serving sector stronger than current pilot intensity exceeds predetermined threshold, and this adjacent sectors is that the leakage of current service sector is when joining the sector of neighbouring relations, then send message to accessing terminal, the release wave point connects, and making accesses terminal moves to Idle state;
Idle state accesses terminal and switches to described adjacent sectors.
6. method according to claim 5 is characterized in that described thresholding is more than or equal to the Idle state handoff threshold that accesses terminal.
7. method according to claim 6 is characterized in that, described thresholding is to join the sector of neighbouring relations and the slow fading and the rapid fading situation of current service sector intersection pilot signal set according to leakage.
8. method according to claim 5 is characterized in that, described Access Network is to use the Access Network of CDMA2000 1x EV-DO system or uses the Access Network of CDMA2000 1x system.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006101062941A CN100456891C (en) | 2006-07-19 | 2006-07-19 | Method for carrying out switching on activated state access terminal |
| PCT/CN2007/002182 WO2008011808A1 (en) | 2006-07-19 | 2007-07-17 | A method and an access network for active state access terminal hand-off |
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| CNB2006101062941A CN100456891C (en) | 2006-07-19 | 2006-07-19 | Method for carrying out switching on activated state access terminal |
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| CN1878421A true CN1878421A (en) | 2006-12-13 |
| CN100456891C CN100456891C (en) | 2009-01-28 |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100265584B1 (en) * | 1997-07-22 | 2000-09-15 | 정태기 | Method of handoff control in the mobile communication system |
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| CN100364359C (en) * | 2004-09-29 | 2008-01-23 | 华为技术有限公司 | CDMA system terminal switching method |
-
2006
- 2006-07-19 CN CNB2006101062941A patent/CN100456891C/en active Active
-
2007
- 2007-07-17 WO PCT/CN2007/002182 patent/WO2008011808A1/en active Application Filing
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Also Published As
| Publication number | Publication date |
|---|---|
| CN100456891C (en) | 2009-01-28 |
| WO2008011808A1 (en) | 2008-01-31 |
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