CN1541017A - Decision method for switching between PHS and WCDMA system - Google Patents
Decision method for switching between PHS and WCDMA system Download PDFInfo
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- CN1541017A CN1541017A CNA2003101118820A CN200310111882A CN1541017A CN 1541017 A CN1541017 A CN 1541017A CN A2003101118820 A CNA2003101118820 A CN A2003101118820A CN 200310111882 A CN200310111882 A CN 200310111882A CN 1541017 A CN1541017 A CN 1541017A
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Abstract
The method is applicable to mobile station for supporting terminal in dual modes or multiple modes of WCDMA system and PHS system. The method includes steps: (a) based on preset condition, mobile station triggers measurement between two systems; (b) when the preset condition is met, mobile station launches accessing and switching in request to WCDMA system; (c) if switching is successful, then the mobile station is capable of making communication in WCDMA system, switching is completed; otherwise returning back to former PHS system in order to reduce possibility of disconnection, the invention realizes high switching efficiency, and reasonable logic.
Description
Technical field
The present invention relates to a kind of Wideband Code Division Multiple Access (WCDMA) (Wideband Code Division MultipleAccess, hereinafter to be referred as WCDMA) system and PHS (Personal Hahdy phone System, personal handyphone system) switch determining method between system particularly relates to from PHS to the switch determining method the WCDMA system.
Background technology
Extensive use and fast development along with mobile communcations system, a lot of key technologies in the mobile system also are gradually improved, when realizing user's proper communication, also must consider how to obtain best performance, can both obtain gratifying effect to obtain for system and subscriber equipment.
In China, to be widely used in the near future as one of the main standard of 3G (Third Generation) Moblie (3G) WCDMA, simultaneously at present the PHS system is in China also ubiquity, the PHS system is commonly called as " local telephone network is logical " or " Personal Handyphone System ", at present open-minded respectively in most of city of China, therefore the situation that WCDMA system and PHS two nets coexist will appear soon.In the case, realize that PHS is the common expectation of operator and communication user institute to the smooth excessiveness of WCDMA system, the problem that solves the key that WCDMA and PHS two nets really coexist is the switching that how to realize between these two systems.In the related protocol standard of 3GPP, stipulate the mutual switching between second-generation systems such as WCDMA system and GSM, but do not had the switching mode between regulation and PHS system.The same switching of in the relevant criterion of PHS system, also not considering between PHS system and WCDMA system.The user of PHS system if can realize switching between this two system in the zone that the WCDMA system covers, can guarantee PHS user's performance better, also simultaneously can produce more benefit for the operator.
The WCDMA system is relatively short at the development time of various countries, and the PHS system is not the unified standard in the whole world, its commercial countries and regions are less, and are therefore also less relatively for the research of switching between two systems, also do not have data to look in the specific implementation technology of switching between these two systems at present.
From the handover mechanism of system itself, there are bigger difference in WCDMA system and PHS system, are realizing between the complete system of WCDMA and PHS that in the handoff procedure, the switching from the PHS system to the WCDMA system is an essential link.
Therefore, there is great deficiency in prior art, and awaits that the technical staff is improved and innovation and creation.
Summary of the invention
The purpose of this invention is to provide a kind of switch determining method that does not have in the prior art standard at PHS system and WCDMA system that solves, a kind of PHS has been proposed to the switch determining method between the WCDMA system, be used to solve the above-mentioned defective of prior art, utilize end side or network side according to the measurement situation of travelling carriage PS (Personal Station) to adjacent sub-district, carry out initial switch decision, in order to need to determine the sub-district of switching, to realize the switching between PHS system to WCDMA system effectively.
Technical scheme of the present invention is as follows:
A kind of PHS is to the switch determining method between the WCDMA system, and its travelling carriage is to possess bimodulus or the multimode terminal of supporting described WCDMA system and described PHS system, and this method may further comprise the steps:
A) described travelling carriage triggers this two systems measurements according to predetermined conditions;
B) described travelling carriage initiates to insert or handoff request to described WCDMA system when satisfying predetermined condition;
C) if handover success, promptly described travelling carriage can be conversed in described WCDMA system, then switches and finishes; Otherwise still return former PHS system, to reduce the possibility of call drop.
Described switch determining method, wherein, described step a) also comprises the steps:
A.1) information of adjacent cells of the described WCDMA of broadcasting system in the sub-district of described PHS system, and can cut to the standard of WCDMA system cell; Possesses the ability of described travelling carriage being measured control in described PHS system, when this travelling carriage possesses the ability that the measurement control order of described PHS system is resolved and carried out again simultaneously, described PHS system is by measurement control order, sends to corresponding described travelling carriage Testing requirement is carried out in the sub-district of described WCDMA system;
A.2) the described travelling carriage in described PHS system starts the measurement to described WCDMA system pilot signal.
Described switch determining method, wherein, described step is a.2) in start the condition measured for measuring the cell signal of finding described PHS system when bad or starting at the beginning of in described PHS system, conversing.
Described switch determining method wherein, is measured required specifying information and is the information broadcasted in the described PHS system cell or the information in the measurement control order.
Described switch determining method, wherein, described step b) also comprises the steps:
When b.1) sub-district of finding described WCDMA system in the measuring process of described travelling carriage met in the broadcast message of described PHS system cell predefined use standard, this travelling carriage directly initiated to insert or handoff request to the sub-district of described WCDMA system;
B.2) sub-district of WCDMA system can be admitted as described, then returns a switching to this travelling carriage and sets up message, otherwise send switch failure information to this travelling carriage.
Described switch determining method, wherein, described step b) also comprises the steps:
B.3) described travelling carriage sends measurement report to the base station controller of described PHS system, if think that needing to switch the base station controller of this PHS system sends handoff request message through the core switching network to the radio network controller of described WCDMA system;
B.4) if when the respective cell of described WCDMA system can be admitted, send switching command through described core switching network to the base station controller of described PHS system by this radio network controller, send the order of switching to this travelling carriage to described WCDMA system by the base station controller of described PHS system.
Described switch determining method wherein, carries out predetermined condition that described PHS system switches to the triggering of described WCDMA system and is described travelling carriage and move to the place that described PHS system does not cover, and can not find signal preferably during the PHS system cell; Or at described travelling carriage among high-speed mobile, described PHS system is because frequent switching can't operate as normal, and when needing the change system; Or in artificial intervention, during manual switching.
Described switch determining method, wherein, can the Rule of judgment that trigger switching that carry out described PHS system to described WCDMA system comprise that the signal quality that pilot signal quality that described moving table measuring obtains a certain sub-district of described WCDMA system reaches a certain frequency in certain thresholding or this WCDMA system reaches a degree preferably.
Described switching deciding method, wherein, described concrete threshold parameter can adopt one of following several modes: system information broadcast; Inform this travelling carriage in the measurement control order; When dispatching from the factory, this travelling carriage determines; This threshold parameter is kept at described base station controller place, and described travelling carriage reports to this base station controller with its measurement result, is judged according to the value of setting by this base station controller again.
A kind of PHS provided by the invention is to the switch determining method between the WCDMA system, this method logic is reasonable, efficient is higher, can realize the switch decision of PHS system to the WCDMA system, realization has the user equipment (UE) of supporting WCDMA and PHS dual-mode capabilities, under the triggering of certain condition, can successfully switch to the WCDMA system from the PHS system.
Description of drawings
Fig. 1 be the inventive method switch to the basic procedure schematic diagram of WCDMA system from the PHS system;
Fig. 2 be the inventive method switch to the schematic diagram of a preferred embodiment of WCDMA system determination method from the PHS system.
Embodiment
Be described in further detail below in conjunction with the enforcement of accompanying drawing technical scheme:
Can implement in the inventive method to be necessary for and possess bimodulus or the multimode terminal that to support described WCDMA system and described PHS system from the travelling carriage PS that described PHS system switches to described WCDMA system.For realizing switching to from described PHS system the switching of described WCDMA system, end side or network side carry out initial switch decision according to the measurement situation of described travelling carriage PS (Personal Station) to adjacent sub-district, need to determine the sub-district of switching.
Of the present invention from PHS to the switch decision process the WCDMA system, comprise the steps: substantially
(1) described travelling carriage PS is according to the condition triggering system measurements of setting, and this system's measurements is meant in described PHS system the measurement to the sub-district of described WCDMA system;
(2) described travelling carriage initiates to insert or handoff request to this WCDMA system when satisfying condition;
(3) if handover success, promptly described travelling carriage can be conversed in this WCDMA system, then switches and finishes; This WCDMA system of incision then will return former PHS system, to reduce the possibility of call drop if accident causes failing.
The flow process of the core concept of the method for the invention as shown in Figure 1, as can be seen from Figure 1:
Step 101: in described PHS system, set described travelling carriage PS and trigger condition, switching standards to described WCDMA systematic survey.In this step, need in the system information of described PHS system, increase the relevant information of described WCDMA system cell, perhaps in this PHS system, increase measurement control order message, in this message, can carry this WCDMA system cell for information about, to increase support to this WCDMA system.
Step 102: when satisfying corresponding triggering condition, described travelling carriage PS begins to carry out the measurement to described WCDMA system cell pilot signal.This trigger condition can be set at described travelling carriage PS when can not find suitable PHS system cell, and the information of the system information broadcast that the beginning basis is received or described measurement control order information are carried out the measurement to this WCDMA system cell.
Step 103: this system's measurements is when satisfying switching condition, and described travelling carriage is to described WCDMA system's initiation access or handoff request.Satisfy switching condition, be meant that the signal quality that pilot signal quality that described travelling carriage PS measures a certain sub-district of described WCDMA system reaches a certain frequency in certain thresholding or this WCDMA system reaches a degree preferably, concrete threshold parameter can adopt following several mode: A, system information broadcast; Inform this travelling carriage PS in B, the measurement control order; C, when dispatching from the factory, this travelling carriage PS determines; D, this threshold parameter are kept at described base station controller place, and described travelling carriage PS reports to this base station controller with measurement result, are judged according to the value of setting by this base station controller again.When reaching switching condition, then directly send and insert or handoff request message, also can send handoff request (or re-positioning request) message through the core switching network to the radio network controller (RNC) (Radio Network Controller) of described WCDMA system by the described base station controller of described PHS system to described WCDMA system by this travelling carriage PS.
Step 104: the incision of travelling carriage as described in admitting as this WCDMA system cell, then this WCDMA system assignment resource with this travelling carriage PS connecting system, otherwise sends switch failure information.If corresponding sub-district has enough resources can distribute to the travelling carriage PS of access or handoff request,, distribute adequate resources, so that this travelling carriage PS carries out normal talking in this WCDMA system then according to the concrete business in access or the handoff request.The access that directly sends to described WCDMA system for this travelling carriage PS or the processing of handoff request message, the radio network controller (RNC) of this WCDMA system can switch and bring its carrying required relevant information with this travelling carriage of clear and definite signaled PS; If can not admit, then can perhaps not send any message with this travelling carriage of clear and definite signaled PS refusal, return former PHS system by the overtime protective device of this travelling carriage PS.For handoff request (or re-positioning request) message that sends to the described radio network controller (RNC) of this WCDMA system by the described base station controller of described PHS system, allow or refuse information to switch (or reorientation) by the corresponding base station controller that the core net exchange sends described PHS system to by this RNC; The base station controller of this PHS system does not then need to send message to described travelling carriage PS when the refuse information of receiving from the described WCDMA RNC of system, keeps original communication link to get final product; But for the message that allows to switch, the base station controller of this PHS system need be notified described travelling carriage PS, and brings this travelling carriage PS relevant information, and this travelling carriage PS formally carries out change action immediately.
As shown in Figure 2 be the inventive method switch to a preferred embodiment of the decision method of WCDMA system from described PHS system; this preferred embodiment is mainly to be described in the mode that adopts cell broadcasting system information to carry measurement and switching condition relevant parameter in the PHS system; but for other modes as adopting measurement control order etc.; its design philosophy is suitable for too; be the content in the protection range of the present invention, this preferred embodiment be described in detail as follows:
Step 201: described travelling carriage PS constantly assesses the quality of this sub-district in communication process, this all need carry out for any travelling carriage PS that is in the PHS system.
Step 202: be lower than the first threshold T D of a setting if described travelling carriage PS finds the quality of current area, the setting of this first threshold T D can be adopted the method that is provided with when dispatching from the factory, also can adopt the mode of system information broadcast to send this travelling carriage PS to, then carry out step 203: the quality situation of measuring other sub-districts.
Step 204: the result of other PHS sub-districts that measure according to described step 203, the quality that judges whether other PHS sub-district is higher than one second threshold T A, the setting of this second threshold T A can be adopted the method that is provided with when dispatching from the factory, and also can adopt the mode of system information broadcast to send described travelling carriage PS to.
Step 207: if having, the then preferential intrasystem cell switch process of described PHS of carrying out works in other sub-districts of described PHS system this travelling carriage PS.
Step 205: if the judgement of the described step 204 of process, think that current other PHS system cell quality are all less than thresholding TA, promptly can not guarantee the normal talking in this PHS system, begin the pilot quality of described WCDMA system cell is measured this moment, and this travelling carriage PS carries out the required described WCDMA system cell information of system's measurements and obtains from this PHS system cell broadcasting.
Step 206: have the quality of WCDMA system cell higher if find, perhaps the quality of certain WCDMA frequency is higher, then think to have reached the condition switched between system of carrying out, carry out step 209 this moment: the base station controller at described travelling carriage PS or its place sends to described WCDMA system and inserts or handoff request.On the contrary,, then carry out step 208: wouldn't switch, continue to be retained in the former PHS system, and proceed measurement to adjacent PHS sub-district and WCDMA system cell if can not find the sub-district or the frequency of adequate WCDMA system.
If after sending access or handoff request to this WCDMA system, described travelling carriage PS can normally converse, then switch and satisfactorily finish; If within a certain period of time, can't be in this WCDMA system normal talking, then this travelling carriage PS may return described PHS system, to reduce cutting off rate.
In the methods of the invention, described travelling carriage PS is according to the condition triggering system measurements of setting, can be in the sub-district of described PHS system the neighboring BS information of broadcasting WCDMA system, and the standard of the WCDMA system cell that can switch to; If described PHS system possesses described travelling carriage PS is measured the ability of control, this travelling carriage PS possesses the ability that the measurement control order of described PHS system is resolved and carried out again simultaneously, then can pass through measurement control order, send to corresponding mobile station PS Testing requirement is carried out in the sub-district of this WCDMA system.
When the travelling carriage PS in described PHS system starts the measurement of this WCDMA system, can be chosen in the cell signal of measuring this PHS system of discovery the opportunity of start measuring when bad, perhaps promptly start measurement at the beginning the WCDMA system cell what this PHS system was conversed; Measure required specifying information from the information of broadcasting in the described PHS sub-district, the information in the perhaps described measurement control order.
Described travelling carriage is to described WCDMA system's initiation access or handoff request when satisfying condition.As described in described travelling carriage PS meets as the sub-district of finding this WCDMA system in measuring process in the PHS cell broadcast information during predefined use standard, described travelling carriage PS directly initiates to insert or handoff request to the sub-district of this WCDMA system, perhaps the base station controller to described PHS system sends measurement report, needs to switch then base station controller by this PHS system sends handoff request (or re-positioning request) message to the radio network controller (RNC) (Radio Network Controller) of this WCDMA system if think.
Directly initiate to insert or during handoff request, the sub-district of this WCDMA system can be admitted, and then returns a switching to this travelling carriage PS and sets up message, otherwise send switch failure information to this travelling carriage PS for this travelling carriage PS to the sub-district of described WCDMA system; Send the situation of handoff request (or re-positioning request) to the radio network controller (RNC) of described WCDMA system for the base station controller by this PHS system, when then the respective cell of this WCDMA system can be admitted, send to the base station controller of described PHS by this radio network controller (RNC) and to switch (or reorientation) order, send the order of switching to described travelling carriage PS to this WCDMA system by the base station controller of this PHS.
Carry out in the process of switching to this WCDMA system at described travelling carriage PS,, then switch and finish if handover success can be conversed in this WCDMA system; The described WCDMA of the incision system if accident causes failing then will return former PHS system, to reduce the possibility of call drop.
The triggering of carrying out PHS system to WCDMA system in the real system of the inventive method has following several mode: 1) described travelling carriage moves to the place that this PHS system does not cover, and can not find signal preferably during the PHS sub-district; 2) terminal is among high-speed mobile, and the PHS system is because the good operate as normal of frequent switching, and when needing the change system.3) during artificial intervention.
The inventive method is utilized the message of broadcasting WCDMA adjacent area in the PHS sub-district or the measurement control order of PHS system, and at described travelling carriage in the PHS network during poor signal, can measure and switch the sub-district of this WCDMA system, realized from of the switching of PHS network to the WCDMA system, and still return former PHS system as handoff failure, realization switching efficiency height, logic is reasonable, and the present invention will greatly strengthen the versatility of PHS network.
Should be noted that; for those of ordinary skills; can make various possible being equal to according to technical scheme of the present invention and technical conceive thereof and change or replace, and all these changes or replace the protection range that all should belong to claims of the present invention.
Claims (9)
1, a kind of PHS is to the switch determining method between the WCDMA system, and its travelling carriage is to possess bimodulus or the multimode terminal of supporting described WCDMA system and described PHS system, and this method may further comprise the steps:
A) described travelling carriage triggers this two systems measurements according to predetermined conditions;
B) described travelling carriage initiates to insert or handoff request to described WCDMA system when satisfying predetermined condition;
C) if handover success, promptly described travelling carriage can be conversed in described WCDMA system, then switches and finishes; Otherwise still return former PHS system, to reduce the possibility of call drop.
2, switch determining method according to claim 1 is characterized in that, described step a) also comprises the steps:
A.1) information of adjacent cells of the described WCDMA of broadcasting system in the sub-district of described PHS system, and can cut to the standard of WCDMA system cell; Possesses the ability of described travelling carriage being measured control in described PHS system, when this travelling carriage possesses the ability that the measurement control order of described PHS system is resolved and carried out again simultaneously, described PHS system is by measurement control order, sends to corresponding described travelling carriage Testing requirement is carried out in the sub-district of described WCDMA system;
A.2) the described travelling carriage in described PHS system starts the measurement to described WCDMA system pilot signal.
3, switch determining method according to claim 2 is characterized in that, described step is a.2) in condition that start to measure for measuring the cell signal of finding described PHS system when bad or starting at the beginning of in described PHS system, conversing.
4, switch determining method according to claim 3 is characterized in that, measures required specifying information and be the information broadcasted in the described PHS system cell or the information in the measurement control order.
5, switch determining method according to claim 2 is characterized in that, described step b) also comprises the steps:
When b.1) sub-district of finding described WCDMA system in the measuring process of described travelling carriage met in the broadcast message of described PHS system cell predefined use standard, this travelling carriage directly initiated to insert or handoff request to the sub-district of described WCDMA system;
B.2) sub-district of WCDMA system can be admitted as described, then returns a switching to this travelling carriage and sets up message, otherwise send switch failure information to this travelling carriage.
6, switch determining method according to claim 2 is characterized in that, described step b) also comprises the steps:
B.3) described travelling carriage sends measurement report to the base station controller of described PHS system, if think that needing to switch the base station controller of this PHS system sends handoff request message through the core switching network to the radio network controller of described WCDMA system;
B.4) if when the respective cell of described WCDMA system can be admitted, send switching command through described core switching network to the base station controller of described PHS system by this radio network controller, send the order of switching to this travelling carriage to described WCDMA system by the base station controller of described PHS system.
7, switch determining method according to claim 2, it is characterized in that, carry out predetermined condition that described PHS system switches to the triggering of described WCDMA system and be described travelling carriage and move to the place that described PHS system does not cover, and can not find signal preferably during the PHS system cell; Or at described travelling carriage among high-speed mobile, described PHS system is because frequent switching can't operate as normal, and when needing the change system; Or in artificial intervention, during manual switching.
8, according to the described switch determining method of the arbitrary claim of claim 1～7, it is characterized in that can the Rule of judgment that trigger switching that carry out described PHS system to described WCDMA system comprise that the signal quality that pilot signal quality that described moving table measuring obtains a certain sub-district of described WCDMA system reaches a certain frequency in certain thresholding or this WCDMA system reaches a degree preferably.
9, switching deciding method according to claim 8 is characterized in that, described concrete threshold parameter can adopt one of following several modes: system information broadcast; Inform this travelling carriage in the measurement control order; When dispatching from the factory, this travelling carriage determines; This threshold parameter is kept at described base station controller place, and described travelling carriage reports to this base station controller with its measurement result, is judged according to the value of setting by this base station controller again.
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| CN 200310111882 CN1281089C (en) | 2003-10-24 | 2003-10-24 | Decision method for switching between PHS and WCDMA system |
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| CN 200310111882 CN1281089C (en) | 2003-10-24 | 2003-10-24 | Decision method for switching between PHS and WCDMA system |
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| WO2006128382A1 (en) * | 2005-06-01 | 2006-12-07 | Ivt (Beijing) Software Technology Inc. | Method for automatically selecting mobile or fixed networks by multimode radio voice terminal |
| CN1303838C (en) * | 2005-03-18 | 2007-03-07 | 杭州斯达康通讯有限公司 | Dual-mode/multi-mode portable device and intelligent switching method thereof |
| WO2007033547A1 (en) * | 2005-09-22 | 2007-03-29 | Zte Corporation | A mode switching method for phs & gsm dual mode mobile terminal |
| WO2008014698A1 (en) * | 2006-07-05 | 2008-02-07 | Huawei Technologies Co., Ltd. | A method and a device for handover between the heterogenous wireless communication systems |
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| CN100444670C (en) * | 2005-06-03 | 2008-12-17 | 中兴通讯股份有限公司 | Handset in GSM/PHS dual modes, and method for sending data between two modules |
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| CN101272568B (en) * | 2008-05-26 | 2011-04-27 | 北京天碁科技有限公司 | Different module activity scheduling method of GSM/TD-SCDMA double module terminal |
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- 2003-10-24 CN CN 200310111882 patent/CN1281089C/en not_active Expired - Fee Related
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| WO2006128382A1 (en) * | 2005-06-01 | 2006-12-07 | Ivt (Beijing) Software Technology Inc. | Method for automatically selecting mobile or fixed networks by multimode radio voice terminal |
| CN100444670C (en) * | 2005-06-03 | 2008-12-17 | 中兴通讯股份有限公司 | Handset in GSM/PHS dual modes, and method for sending data between two modules |
| WO2007033547A1 (en) * | 2005-09-22 | 2007-03-29 | Zte Corporation | A mode switching method for phs & gsm dual mode mobile terminal |
| CN101064916B (en) * | 2006-04-27 | 2011-07-20 | 广东中大讯通信息有限公司 | System for realizing mobile equipment seamless switch in different networks |
| WO2008014698A1 (en) * | 2006-07-05 | 2008-02-07 | Huawei Technologies Co., Ltd. | A method and a device for handover between the heterogenous wireless communication systems |
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| WO2012051873A1 (en) * | 2010-10-21 | 2012-04-26 | 中兴通讯股份有限公司 | Method and device for testing cell reselection capability of terminal |
| CN102457862A (en) * | 2010-10-21 | 2012-05-16 | 中兴通讯股份有限公司 | Method for testing terminal cell reselection ability and apparatus thereof |
| US9191876B2 (en) | 2010-10-21 | 2015-11-17 | Zte Corporation | Method and device for testing cell reselection capability of terminal |
| CN102457862B (en) * | 2010-10-21 | 2016-02-10 | 中兴通讯股份有限公司 | The method of a kind of test terminal cell reselection ability and device |
| WO2012075837A1 (en) * | 2010-12-09 | 2012-06-14 | 华为技术有限公司 | Cell search method for terminal, and related device and system |
| US9288745B2 (en) | 2010-12-09 | 2016-03-15 | Huawei Technologies Co., Ltd. | Cell search method of terminal and related device and system |
| WO2014113926A1 (en) * | 2013-01-22 | 2014-07-31 | 华为技术有限公司 | Cell measurement method, radio network controller and user equipment |
| CN104145527A (en) * | 2013-01-22 | 2014-11-12 | 华为技术有限公司 | Cell measurement method, radio network controller and user equipment |
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