CN101090564A - Switchover intercepting method for TD-SCDMA multi-mode terminal at standby state - Google Patents
Switchover intercepting method for TD-SCDMA multi-mode terminal at standby state Download PDFInfo
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- CN101090564A CN101090564A CNA200610091870XA CN200610091870A CN101090564A CN 101090564 A CN101090564 A CN 101090564A CN A200610091870X A CNA200610091870X A CN A200610091870XA CN 200610091870 A CN200610091870 A CN 200610091870A CN 101090564 A CN101090564 A CN 101090564A
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Abstract
This invention discloses a switch and monitor method for TD-SCDMA multimode terminal at the stand-by state, in which, test to other radio access nets is carried out during the time when TD-SCDMA multimode terminal monitors paging information broadcast by the TD-SCDMA network system, and extra time is not occupied during monitor process and the period for monitoring other RAN supported by TD-SCDMA multimode terminal is the same with that monitoring the original TD-SCDMA network paging information.
Description
Technical field
The present invention relates to the switchover intercepting method of a kind of TD-SCDMA multimode terminal under holding state.
Background technology
At present, the 3G mobile terminal multi-mode merges the trend that has become the mobile communication terminal development.The TD-SCDMA standard is as one of mainstream standard of 3G mobile communication system, and the multimode terminal that it and other wireless access network systems merge will become one of following important development direction.
The TD-SCDMA multimode terminal is except being undertaken data access and the VoIP application by the TD-SCDMA network system, can also under the different application environment, pass through other RAN (Radio Access Net, Radio Access Network), for example WiFi, WiMax, UWB, Zigbee, GSM, WCDMA, CDMA2000 etc. carry out data access and VoIP uses.This provides faster data transmission speed, better QoS (Quality of Service, service quality) or more cheap service.Especially, when having TD-SCDMA network system coverage hole, can utilize other RAN as a supplement.Under user's appointment, according to the mobile management function, information flow can be redirected to suitable network, guaranteed the continuity of service.
In every technology of TD-SCDMA multimode terminal, handoff technique is one of key technology wherein.As everyone knows, when the TD-SCDMA multimode terminal enter support other RAN covered when regional, a major issue that runs into is exactly the switching that how to realize from existing TD-SCDMA network to other RANs, and wherein primary work is exactly to the intercepting of these RANs, so that find available network.
In the existing wireless access network handoff technique, a kind of is to be under connection or the holding state in terminal, use earlier switching mode between the system that disconnects, rebuilds again, there are long shortcoming switching time in bimodulus handoff technique between the bimodulus switching between PHS and the GSM and GSM and the CDMA for example, this mode.Another is to adopt special-purpose network measuring module to carry out the control of network measuring, and this mode can not produce to be disturbed and interruption, but will increase the complexity and the overhead of system.
Summary of the invention
The method that the purpose of this invention is to provide a kind of TD-SCDMA multimode terminal other wireless access network of switchover intercepting under holding state, the process of wherein intercepting other RAN that the TD-SCDMA multimode terminal supports is the outer time of occupying volume not, and listening periods is consistent with the cycle of the original TD-SCDMA ICQ of its monitoring message, thereby can realize seamless switching from the TD-SCDMA network system to other Radio Access Network, and do not need the dedicated network detection module, do not increase extra hardware complexity.
According to the switchover intercepting method of TD-SCDMA multimode terminal of the present invention under holding state, it is characterized in that, in the time of the beep-page message that TD-SCDMA multimode terminal monitoring TD-SCDMA network system is broadcasted, carry out the detection of other wireless access network.
Specifically, in the TD-SCDMA multimode terminal receives the vacant time slot of each subframe of beep-page message of TD-SCDMA network system broadcasting, carry out the detection of other wireless access network.
Further, the detection of carrying out other wireless access network of TD-SCDMA multimode terminal may further comprise the steps:
Step 10: judge whether the TD-SCDMA multimode terminal is in the paging listening state;
Step 11: when judgement shows that the TD-SCDMA multimode terminal is in the paging listening state, in the TD-SCDMA multimode terminal receives the vacant time slot of each subframe of beep-page message of TD-SCDMA network system broadcasting, carry out the detection of other wireless access network.
Wherein, the detection of described other Access Network comprises whether the signal that detects other Access Network exists, and/or detects the access signal strength signal intensity of other Access Network.
Wherein, after other wireless access networks are detected, can further store testing result.
Wherein, the TD-SCDMA multimode terminal can comprise one or more in WiFi, WiMax, UWB, Zigbee, GSM, WCDMA or the CDMA2000 module.
According to switchover intercepting method of the present invention, the process of intercepting other Access Network is the outer time of occupying volume not, and listening periods is consistent with the cycle paging message of the original TD-SCDMA network of its monitoring, thereby can realize seamless switching from the TD-SCDMA network system to other Radio Access Network, and do not need the dedicated network detection module, do not increase extra hardware complexity.
Description of drawings
Fig. 1 is the structural representation of a typical TD-SCDMA multimode terminal.
Fig. 2 is a plurality of subframes of TD-SCDMA multimode terminal in a listening period and the schematic diagram of the distributing slot resources situation in each subframe.
Fig. 3 is for describing the flow chart according to TD-SCDMA multimode terminal of the present invention process of other RAN of switchover intercepting in holding state.
Embodiment
Figure 1 shows that typical TD-SCDMA multimode terminal structure chart roughly.Can see that this TD-SCDMA multimode terminal 10 is except TD-SCDMA module 20, also comprise WCDMA module 30 and WiFi module 40, and comprise the controller 50 that to control these modules, the RAM 70 of the ROM 60 of the program of storage control operation and storage ephemeral data.Controller 50 can move the program that is stored among the ROM 60 and carry out control to each wireless module, and various ephemeral datas can be stored among the RAM 70.
Usually, under the control of controller 50, the TD-SCDMA multimode terminal that is in standby mode will be monitored the beep-page message of TD-SCDMA network system broadcasting every regular time, to receive some system informations.
Figure 2 shows that the TD-SCDMA multimode terminal in a TD-SCDMA monitoring phase a plurality of subframes and the distributing slot resources situation in each subframe.Can see whole snoop procedure with a plurality of subframes, promptly subframe 1 to m, finishes the reception of system information.Finish the conditional decisions such as signal strength signal intensity of the quantity of the needed subframe of reception according to TD-SCDMA multimode terminal present position.For example, if the signal strength signal intensity of TD-SCDMA multimode terminal present position is relatively poor, the sub-frame number that may need also can be more; Otherwise if signal strength signal intensity is better, the less subframe that may need just can be finished the reception of system information.
According to the TD-SCDMA consensus standard, the time of each subframe is 5ms, wherein be a plurality of up or descending time slots with each sub-frame division, for example the TS0 shown in Fig. 1 is to TS6, and descending pilot frequency time slot DwPTS and uplink pilot time slot UpPTS, wherein time slot TS0 is fixing descending time slot, and TS1 can be ascending time slot or descending time slot to TS6.According to the TD-SCDMA consensus standard, in the paging snoop procedure, only use TS0 in each subframe as the fixing ascending time slot of fixing descending time slot and TS1 conduct.Therefore in the paging snoop procedure of TD-SCDMA multimode terminal, can not use subframe TS2 to TS6.At this moment, controller 50 need not to carry out control to carry out Data Receiving and is in idle condition, thereby can be used for carrying out intercepting of other RAN.
In the present invention, in these extrinsic time slots, carry out intercepting of its RAN by controller 50 other wireless access network modules of control.Below according to flow chart description shown in Figure 3 according to the present invention, TD-SCDMA multimode terminal (for example TD-SCDMA multimode terminal 10 among Fig. 1) method of other RAN of switchover intercepting in holding state.
At step S1, TD-SCDMA multimode terminal 10 is in holding state.
In step S2, can judge whether predetermined listening period by the program of operation on controller 50.If do not arrive preset time, then terminal keeps holding state.This judgement can be carried out at interval every regular time, was decided by the setting of TD-SCDMA multimode terminal 10.
When having determined the scheduled time of the beep-page message of monitoring the broadcasting of TD-SCDMA network system among the step S3,10 beginnings of TD-SCDMA multimode terminal receive the beep-page message of TD-SCDMA network system broadcasting with the sub-frame formats of aforesaid TD-SCDMA consensus standard definition.The fixing time slot TS0 downlink data receiving in each subframe wherein, and in fixing time slot TS1, send upstream data.
When deadline TS0 in a subframe after the aforesaid operations of time TS1, because time slot TS2 does not have transfer of data to TS6, therefore, TD-SCDMA multimode terminal 10 can carry out the detection of network by controller 50 other RAN modules of control (for example WCDMA module 30 and WiFi module 40).
At step S4, and then after the time slot TS1 in the subframe, TD-SCDMA multimode terminal 10 judges whether also have other RAN module to detect in this listening period by the program of operation on the controller 50.
Because two RAN modules of the WCDMA module of TD-SCDMA multimode terminal 10 shown in Figure 1 and WiFi were not carried out network measuring at this moment.Thereby,, can activate and control these two RAN modules and carry out the RAN network measuring by controller 50 at step S5.The detection content comprises for example whether have the signal of this RAN network, the intensity of the signal of this RAN network etc., and store the detected network information into (for example storing among the RAM 70), use for the back.
Owing to there are two RAN modules, therefore, can for example carry out the detection of WCDMA module 30 earlier in the certain detection order of TD-SCDMA multimode terminal 10 inner settings, carry out the detection of WiFi module 40 then, perhaps conversely.
Among the present invention, in order to simplify description, to carry out the detection of WCDMA module 30 earlier, the detection of carrying out WiFi module 40 then is that example describes.Like this, when the signal that in detection, has detected the WCDMA network, and when having detected the signal strength signal intensity of this WCDMA network, testing result is stored among the RAM70.
Afterwards, after last time slot TS6 of this subframe, TD-SCDMA multimode terminal 10 will be judged the reception of the beep-page message of whether having finished the broadcasting of TD-SCDMA network system in this subframe in step S6.Generally speaking, need more than one subframe to receive the beep-page message of complete TD-SCDMA network system broadcasting.Therefore, flow process is got back to the reception that step S3 begins next TD-SCDMA subframe.
At step S4, judging also needs to carry out the detection of WiFi module 40 afterwards.Therefore carry out detecting like the WCDMA module class with the front at step S5, promptly whether have the signal strength signal intensity of WiFi network and this network etc., and testing result is stored among the RAM 70.
Step S6 judges the reception of the beep-page message of whether having finished the broadcasting of TD-SCDMA network system in this subframe once more then.If no, then get back to the reception that step S3 carries out next subframe once more.Afterwards, owing to finished the detection of WCDMA network and WiFi network, therefore, flow process repeated execution of steps S3 is up to the reception (step S6 judged result is for being) of the beep-page message of finishing the broadcasting of TD-SCDMA network system.
Afterwards, flow process proceeds to step S7, has judged whether to finish the detection of all RAN modules.This may need for the TD-SCDMA multimode terminal that a lot of RAN modules are arranged.Just, after the reception of the beep-page message of having finished the broadcasting of above-mentioned TD-SCDMA network system and inserting the detection of other RAN module wherein, still there is the RAN module not finish the detection of its network.This moment, flow process proceeded to the network measuring operation that step S8 finishes these remaining RAN modules, and testing result is stored among the RAM 70.Otherwise flow process skips steps S8 is directly to step S9.
In step S9, TD-SCDMA multimode terminal 10 is operated according to the testing result that is stored in each RAN module among the RAM 70.For example, switch to the RAN that detected user sets, perhaps signal strength signal intensity RAN etc. preferably from current TD-SCDMA wireless access network.Owing to carry out at once after switching in the TD-SCDMA listening period, therefore can realize seamless switching.
Perhaps, the RAN network that does not detect user expectation situation under, also can not carry out handover operation.Flow process is got back to step S1 and is entered holding state, waits for next listening period.
More than carried out the description of switchover intercepting method for the exemplary TD-SCDMA multimode terminal 10 among the Fig. 1 with two other RAN modules.Can recognize that for the TD-SCDMA multimode terminal with a plurality of other RAN modules that surpass two, switchover intercepting method of the present invention still can be suitable for.
Intercept by carrying out other RAN module network in the intrinsic not use time slot in TD-SCDMA paging monitoring subframe, can avoid extra expense, and implementation is intercepted with the paging listening period of TD-SCDMA self synchronous.
Claims (6)
1. the switchover intercepting method of a TD-SCDMA multimode terminal under holding state is characterized in that,
In the time of the beep-page message that TD-SCDMA multimode terminal monitoring TD-SCDMA network system is broadcasted, carry out the detection of other wireless access network.
2. method according to claim 1 is characterized in that, in the TD-SCDMA multimode terminal receives the vacant time slot of each subframe of beep-page message of TD-SCDMA network system broadcasting, carries out the detection of other wireless access network.
3. method according to claim 2 is characterized in that, the detection that the TD-SCDMA multimode terminal carries out other wireless access network may further comprise the steps:
Step 10: judge whether the TD-SCDMA multimode terminal is in the paging listening state;
Step 11: when judgement shows that the TD-SCDMA multimode terminal is in the paging listening state, in the TD-SCDMA multimode terminal receives the vacant time slot of each subframe of beep-page message of TD-SCDMA network system broadcasting, carry out the detection of other wireless access network.
4. according to claim 1,2 or 3 described methods, it is characterized in that the detection of described other Access Network comprises whether the signal that detects other Access Network exists, and/or detects the access signal strength signal intensity of other Access Network.
5. method according to claim 4 is characterized in that, after other wireless access networks are detected, further stores testing result.
6. method according to claim 1 is characterized in that, described TD-SCDMA multimode terminal comprises one or more in WiFi, WiMax, UWB, Zigbee, GSM, WCDMA or the CDMA2000 module.
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| CN200610091870XA CN101090564B (en) | 2006-06-13 | 2006-06-13 | Switchover intercepting method for TD-SCDMA multi-mode terminal at standby state |
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| CN200610091870XA CN101090564B (en) | 2006-06-13 | 2006-06-13 | Switchover intercepting method for TD-SCDMA multi-mode terminal at standby state |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101940043A (en) * | 2009-11-05 | 2011-01-05 | 高通股份有限公司 | Method and device for monitoring paging message in CDMA evdo network and frame synchronization td-scdma network for multi-mode terminal |
| CN102238537A (en) * | 2010-04-30 | 2011-11-09 | 华为技术有限公司 | Method and equipment for allowing terminal to enter idle mode in different operation mode systems |
| CN101662764B (en) * | 2008-08-29 | 2011-12-28 | 联想(北京)有限公司 | Method and system for transmitting interception reference signal |
| CN103718628A (en) * | 2011-05-25 | 2014-04-09 | Lg电子株式会社 | Method and apparatus for efficiently performing paging in a wireless access system that supports a multi-radio access technology |
-
2006
- 2006-06-13 CN CN200610091870XA patent/CN101090564B/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101662764B (en) * | 2008-08-29 | 2011-12-28 | 联想(北京)有限公司 | Method and system for transmitting interception reference signal |
| CN101940043A (en) * | 2009-11-05 | 2011-01-05 | 高通股份有限公司 | Method and device for monitoring paging message in CDMA evdo network and frame synchronization td-scdma network for multi-mode terminal |
| CN101940043B (en) * | 2009-11-05 | 2014-12-03 | 高通股份有限公司 | Method and device for monitoring paging message in CDMA EVDO network and frame synchronization TD-SCDMA network for multi-mode terminal |
| US8996041B2 (en) | 2009-11-05 | 2015-03-31 | Qualcomm Incorporated | Method and apparatus for the multimode terminal to monitor paging messages in CDMA EVDO and frame synchronous TD-SCDMA networks |
| CN102238537A (en) * | 2010-04-30 | 2011-11-09 | 华为技术有限公司 | Method and equipment for allowing terminal to enter idle mode in different operation mode systems |
| CN102238537B (en) * | 2010-04-30 | 2014-06-04 | 华为技术有限公司 | Method and equipment for allowing terminal to enter idle mode in different operation mode systems |
| CN103718628A (en) * | 2011-05-25 | 2014-04-09 | Lg电子株式会社 | Method and apparatus for efficiently performing paging in a wireless access system that supports a multi-radio access technology |
| CN103718628B (en) * | 2011-05-25 | 2017-06-30 | Lg电子株式会社 | Method and apparatus for being effectively carried out paging in the wireless access system for supporting multi radio access technology |
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| CN101090564B (en) | 2012-02-29 |
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