CN101674625B - Switching method and mobile station - Google Patents
Switching method and mobile stationDownload PDFInfo
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- CN101674625B CN101674625BCN2008102138966ACN200810213896ACN101674625BCN 101674625 BCN101674625 BCN 101674625BCN 2008102138966 ACN2008102138966 ACN 2008102138966ACN 200810213896 ACN200810213896 ACN 200810213896ACN 101674625 BCN101674625 BCN 101674625B
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- 238000005259measurementMethods0.000claimsdescription50
- 238000004891communicationMethods0.000claimsdescription39
- 230000004044responseEffects0.000claimsdescription22
- 230000005540biological transmissionEffects0.000claimsdescription20
- 230000011664signalingEffects0.000claimsdescription16
- 230000008685targetingEffects0.000claimsdescription12
- 238000012545processingMethods0.000claimsdescription8
- 238000005457optimizationMethods0.000claimsdescription5
- 230000008569processEffects0.000description23
- 238000005516engineering processMethods0.000description4
- 230000001360synchronised effectEffects0.000description3
- 238000010295mobile communicationMethods0.000description2
- 230000006872improvementEffects0.000description1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
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Abstract
Description
Technical field
The present invention relates to the communications field, and especially, relate to a kind of changing method and mobile radio station.
Background technology
At present, wireless communication system uses electromagnetic wave and wireless communication terminal fixing or that move (for example, mobile radiotelephone or all can be called as terminal with the equipment such as notebook computer of wireless communication card) to communicate.In general, when carrying out radio communication, the terminal is positioned within the wireless coverage of system, and communicates through radio communication channel and system.Radio communication channel is divided into a plurality of carrier frequencies with wave frequency, and a carrier frequency is exactly a radio communication channel.Wireless communication system utilizes the wireless channel of appointment in certain geographic range, wireless coverage to be provided through the base station, this geographic range is called the sub-district.Usually, in theory, the base station should be positioned at the central authorities of sub-district.When the terminal moves to another sub-district from a sub-district,, just need carry out the switching of base station in order to keep communication.
In correlation technique, handoff technique can be divided into two kinds of direct-cut operation and soft handovers.Wherein, the characteristics of direct-cut operation are the connections of interruption earlier and former serving BS (Base Station abbreviates BS as); Foundation is connected with the business of target BS again, and wherein, the process of direct-cut operation can be divided into several sub-processes: 1, network topology is obtained (district reselecting); 2, switch preparation and initialization; 3, target BS down-going synchronous, 4, end former serving BS broadcasts and connect, get into new sub-district.
Because dissimilar communication systems has appearred in the develop rapidly of communication system, these communication systems can compatible traditional terminal, and likewise, traditional base station also should be able to be inserted in current terminal.At present, in considering compatible technology, being divided into current region and traditional area in the BS of current communication system (when's setting out in advance to make arrangements) the frame.Current terminal can be operated in current region, and conventional terminal can be operated in traditional area.For conventional terminal, when the traditional area of setting out in advance to make arrangements is exactly a tradition station.In addition, when traditional base station work is inserted at current terminal, see that from the angle at tradition station this terminal is exactly a conventional terminal.
Yet, current terminal is not proposed as yet at present directly in the technical scheme of between next stop and tradition station, switching.
Summary of the invention
Consider present current terminal can not be directly when set out in advance to make arrangements and the tradition station between the problem switched and make the present invention, for this reason, main purpose of the present invention is to provide a kind of changing method and mobile radio station, to solve the problems referred to above in the correlation technique.
According to an aspect of the present invention, a kind of changing method is provided, has been used for mobile radio station switches to Target Station from the service station target area.
Changing method according to the present invention comprises: mobile radio station obtains the channel information of all target areas in the broadcast of neighbours base station traditional area through predetermined way; And after confirming target BS, switch to the target area of definite target BS from the service station according to the channel information of the target BS of confirming according to the channel information of all target areas.
Wherein, above-mentioned predetermined way is specially: mobile radio station scans traditional area.
In addition, before above-mentioned mobile radio station scanned traditional area, said method further comprised: mobile radio station is initiatively initiated scan request to the service station; Perhaps, mobile radio station is in response to the scan request of service station transmission.
Wherein, above-mentioned mobile radio station scans traditional area and is specially: mobile radio station carries out cycle or aperiodic scanning to traditional area.
One of below wherein, above-mentioned channel information specifically comprises at least: the Virtual network operator sign of target area, the frequency parameter of target area, the transmit power parameter of target area, base station station identifications, handover optimization parameter, leading parameter, subchannel parameter, triggering are switched kind length and are referred to the territory field.
In addition, after above-mentioned mobile radio station obtained channel information, further comprise: mobile radio station was found range according to channel information.
Wherein, Above-mentioned mobile radio station is found range according to channel information and is specially: mobile radio station carried out synchronously according to channel information and target area after, mobile radio station sent the initial ranging sign indicating number, wherein; At the initial ranging sign indicating number is under the situation of ranging code at random, adopts at random access way to send ranging code at random; Under the situation of initial ranging sign indicating number, adopt access way transmission at random to specify ranging code for the appointment ranging code; At the initial ranging sign indicating number is under the situation of ranging code at random, is employed in the mode of sending on the assigned timeslot and sends ranging code at random; Under the situation of initial ranging sign indicating number, be employed in the mode of sending on the assigned timeslot and send the appointment ranging code for the appointment ranging code; Mobile radio station is receiving feedback information in the target area or in the service station, and wherein, feedback information comprises range measurement resource or the sign that network gets in the switching.
In addition, above-mentioned mobile radio station switches to after the target area according to relevant information, further comprises: mobile radio station sends distance measurement request message to the target area.
In addition; Above-mentioned mobile radio station is before distance measurement request message is sent in the target area; Said method further comprises: after mobile radio station and target area were carried out synchronously, mobile radio station sent the initial ranging sign indicating number, wherein; At the initial ranging sign indicating number is under the situation of ranging code at random, adopts at random access way to send ranging code at random; Under the situation of initial ranging sign indicating number, adopt access way transmission at random to specify ranging code for the appointment ranging code; At the initial ranging sign indicating number is under the situation of ranging code at random, is employed in the mode of sending on the assigned timeslot and sends ranging code at random; Under the situation of initial ranging sign indicating number, be employed in the mode of sending on the assigned timeslot and send the appointment ranging code for the appointment ranging code; Mobile radio station receives the initial ranging feedback information.
Wherein, above-mentioned mobile radio station is specially to the processing of target area transmission distance measurement request message: mobile radio station sends distance measurement request message on the pre-assigned resource in target area; Perhaps mobile radio station sends distance measurement request message according to adjusted initial ranging feedback information.
In addition, above-mentioned mobile radio station further comprises after distance measurement request message is sent in the target area: mobile radio station receives ranging response message, and obtain range measurement resource information, adjustment parameter, initial ranging in the ranging response message in successfully indicating one of at least.
Wherein, Above-mentioned mobile radio station is for supporting the mobile radio station of old communication protocol and new traffic agreement; The service station is for supporting the base station or the relay station of old communication protocol, and Target Station is for supporting the base station or the relay station of old communication protocol and new traffic agreement, wherein; The traditional area of Target Station uses old communication protocol for the mobile radio station of supporting old communication protocol service to be provided, and the new traffic agreement is supported in the target area of Target Station.
According to an aspect of the present invention, a kind of changing method is provided, has been used for mobile radio station switches to Target Station from the service station target area.
Changing method according to the present invention comprises: mobile radio station obtains the channel information of all target areas in the target area targeting signal of neighbours base station through predetermined way; And after confirming target BS according to channel information, switch to the target area of definite target BS from the service station according to the channel information of the target BS of confirming.
In addition; After above-mentioned mobile radio station obtained the channel information of the target area in the target area targeting signal of target BS, method further comprised: mobile radio station obtains the channel information of the target area in the target area broadcast of target BS through predetermined way.
Wherein, above-mentioned predetermined way is specially: mobile radio station scans the target area.
In addition, before above-mentioned mobile radio station scanned the target area, said method further comprised: mobile radio station is initiatively initiated scan request to the service station; Perhaps, mobile radio station is in response to the scan request of service station transmission.
Wherein, above-mentioned mobile radio station scans the target area and is specially: mobile radio station carries out cycle or aperiodic scanning to traditional area.
One of below wherein, above-mentioned channel information specifically comprises at least: the physical signalling intensity of target area, range measurement resource.
In addition, after above-mentioned mobile radio station obtained channel information, further comprise: mobile radio station was found range according to channel information.
Wherein, Above-mentioned mobile radio station is found range according to channel information and is specially: mobile radio station and target area are carried out synchronously according to channel information after; The broadcast in mobile radio station receiving target zone, and on the range measurement resource that broadcast is distributed, send the initial ranging sign indicating number, wherein; At the initial ranging sign indicating number is under the situation of ranging code at random, adopts access way at random to send ranging code at random in the zone of the broadcast indication of target area; Mobile radio station is receiving feedback information in the target area, and wherein, feedback information comprises range measurement resource or the sign that network gets in the switching.
In addition, above-mentioned mobile radio station switches to after the target area according to relevant information, further comprises: mobile radio station sends distance measurement request message to the target area.
In addition; Above-mentioned mobile radio station is before distance measurement request message is sent in the target area; Said method further comprises: after mobile radio station and target area were carried out synchronously, mobile radio station sent the initial ranging sign indicating number, wherein; At the initial ranging sign indicating number is under the situation of ranging code at random, adopts at random access way to send ranging code at random; Under the situation of initial ranging sign indicating number, adopt access way transmission at random to specify ranging code for the appointment ranging code; At the initial ranging sign indicating number is under the situation of ranging code at random, is employed in the mode of sending on the assigned timeslot and sends ranging code at random; Under the situation of initial ranging sign indicating number, be employed in the mode of sending on the assigned timeslot and send the appointment ranging code for the appointment ranging code; Mobile radio station receives the initial ranging feedback information.
Wherein, above-mentioned mobile radio station is specially to the processing of target area transmission distance measurement request message: mobile radio station sends distance measurement request message on the pre-assigned resource in target area; Perhaps mobile radio station sends distance measurement request message according to adjusted initial ranging feedback information.
In addition, above-mentioned mobile radio station further comprises after distance measurement request message is sent in the target area: mobile radio station receives ranging response message, and obtain range measurement resource information, adjustment parameter, initial ranging in the ranging response message in successfully indicating one of at least.
Wherein, Above-mentioned mobile radio station is for supporting the mobile radio station of old communication protocol and new traffic agreement; The service station is for supporting the base station or the relay station of old communication protocol, and Target Station is for supporting the base station or the relay station of old communication protocol and new traffic agreement, wherein; The traditional area of Target Station uses old communication protocol for the mobile radio station of supporting old communication protocol service to be provided, and the new traffic agreement is supported in the target area of Target Station.
According to another aspect of the present invention, a kind of mobile radio station is provided, has been used for switching to the target area of Target Station from the service station.
Mobile radio station according to the present invention comprises: acquisition module is used for obtaining through predetermined way the channel information of target area of the traditional area broadcast of target BS; Perhaps, be used for obtaining the channel information of all target areas of target area targeting signal or the broadcast of neighbours base station through predetermined way; Determination module is used for confirming target BS according to channel information.Handover module, the channel information of the target BS that is used for confirming according to determination module switches to the target area of definite target BS from the service station.
In addition, above-mentioned mobile radio station further comprises: scan module is used for traditional area is scanned.
In addition, above-mentioned mobile radio station further comprises: range finder module is used for finding range according to channel information.
By means of technical scheme of the present invention; The terminal is through obtaining the channel information of the target area of target BS from the traditional area broadcast of target BS; And; Switch to the target area of target BS from the service station according to this channel information, realized the terminal directly when set out in advance to make arrangements and the tradition station between switching purpose, thereby make the terminal between compatible system, to switch quickly and efficiently.
Other features and advantages of the present invention will be set forth in specification subsequently, and, partly from specification, become obvious, perhaps understand through embodiment of the present invention.The object of the invention can be realized through the structure that in the specification of being write, claims and accompanying drawing, is particularly pointed out and obtained with other advantages.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used to explain the present invention with embodiments of the invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the process chart according to the changing method of the inventive method embodiment;
Fig. 2 is the process chart according to the practical implementation of the changing method of the inventive method embodiment;
Fig. 3 is the signaling process flow chart of changing method according to the preferred embodiment of the invention;
Fig. 4 is a signaling process flow chart of changing method according to the preferred embodiment of the invention;
Fig. 5 is another signaling process flow chart of changing method according to the preferred embodiment of the invention;
Fig. 6 is the structured flowchart according to the mobile radio station of apparatus of the present invention embodiment.
Embodiment
Functional overview
Consider that a kind of technology of present needs solves current terminal directly in the problem of between next stop and tradition station, switching; The present invention proposes a kind of changing method and mobile radio station; Wherein, by means of this changing method, the terminal is scanned through the traditional area to all neighbours base stations; And according to the channel information of all target areas in the broadcast of the traditional area of all neighbours base stations; The target BS that confirm to need switches, and, switch to the target area of target BS from the service station according to the channel information of target area.In addition, the present invention also provides a kind of changing method, that is, mobile radio station obtains the channel information of the target area in the target area targeting signal of target BS, and switches to the target area of target BS from the service station according to this channel information.
Need to prove; Above-mentioned mobile radio station is for supporting the mobile radio station of old communication protocol and new traffic agreement; The service station is for supporting the base station or the relay station of old communication protocol, and Target Station is for supporting the base station or the relay station of old communication protocol and new traffic agreement, wherein; The traditional area of Target Station uses old communication protocol for the mobile radio station of supporting old communication protocol service to be provided, and the new traffic agreement is supported in the target area of Target Station.
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for explanation and explains the present invention, and be not used in qualification the present invention.
Method embodiment
According to embodiments of the invention, a kind of changing method is provided, be used for mobile radio station switches to Target Station from the service station target area.
Fig. 1 shows the handling process according to the changing method of the inventive method embodiment, and is as shown in Figure 1, and this method comprises:
Step S102, mobile radio station obtain the channel information of all target areas in the broadcast of neighbours base station traditional area through predetermined way;
Step S104, mobile radio station switch to the target area of definite target BS from the service station according to the channel information of the target BS of confirming after confirming target BS according to the channel information of all target areas.
Below further describe the details of above-mentioned processing.
Fig. 2 shows the handling process according to the practical implementation of the changing method of the inventive method embodiment, and is as shown in Figure 2, and this processing procedure comprises step 202 to step 206.
Step 202, mobile radio station will scan the traditional area in all neighbours zones, so that obtain the channel information of all target areas in due course in order to obtain the channel information of target area.
In concrete implementation process, mobile radio station is to service station active initiation request, and perhaps, the request that mobile radio station sends in response to the service station scans traditional area.The concrete operations of this scanning are: mobile radio station carries out cycle or aperiodic scanning to traditional area.
This channel information specifically comprise following one of at least: the frequency parameter for Virtual network operator sign, target area of target area, the transmit power parameter of target area, base station station identifications, handover optimization parameter, leading parameter, subchannel parameter, trigger and switch kind length and refer to the territory field.
Step 204, mobile radio station are obtained the channel information of all target areas in the traditional area broadcast of all neighbours base stations through above-mentioned scanning process.
In addition, obtained the channel information of target area of target BS at mobile radio station after, mobile radio station can be found range according to channel information.Particularly, the operation that mobile radio station is found range according to channel information comprises: mobile radio station sends ranging code in the back synchronously according to channel information and target area in the target area, receive the range finding feedback information in the target area or receiving feedback information under the service station.Handover operation just can have been carried out in the terminal after having obtained this feedback information.
Step 206, mobile radio station have been obtained after the channel information of all target areas, according to this channel information, confirm the target BS of switching, switch to the target area of target BS from the service station according to the channel information of target BS.
Below with at global microwave access intercommunication (World Interoperability forMicrowave Access; Abbreviate WiMAX as) in; The 16m terminal switches to the 16m base station from the 16e/16j base station 16m zone process is an example, specifies the processing procedure of above-mentioned changing method.
WiMAX is a broadband wireless access metropolitan area network technology (Broadband Wireless Access Metropolitan Area Network) based on the IEEE802.16 standard.The elementary object of WiMAX is to insert under the environment at metropolitan area network; The wireless device of guaranteeing different vendor interconnects; Be mainly used in to family, enterprise and mobile communications network provide the high-speed wideband of " last kilometer " and insert, and personal mobile communication in the future is professional.The IEEE802.16 standard has been worked out the standard of physical layer (PHY) and medium Access Layer (MAC), is a kind of new air-interface standard that proposes to microwave frequency band.The IEEE802.16m that wherein comprises relay structure is present up-to-date standard technique, and IEEE802.16m is based upon on the basis of IEEE802.16e and two standards of IEEE802.16j.At present, the frame structure of 16m zone (zone) is divided into traditional area (legacy zone) and target area (16m zone).
Fig. 3 shows the signaling process flow process of changing method according to the preferred embodiment of the invention, and is as shown in Figure 3, and this signaling process flow process comprises step 302 to step 320.
Specifically describe the details of this signaling process process below.
Step 302 to step 304; Step 202; The 16m terminal will be carried out the legacy zone of 16m base station periodically or ground scanning aperiodic, so that obtain the channel information of 16m zone in due course for the channel information of the 16m zone that obtains the 16m base station.
Particularly, in step 302, the 16m terminal uses mobile radio station scan request (MOB_SCN-REQ) message initiatively to initiate scanning to current service station (that is, the 16e/16j base station), and this scanning can be that perhaps aperiodic, initiated on ground periodically; In addition, this scan request also can be to be initiated by current service station, the not shown situation of being initiated scan request by current service station among Fig. 3.
Instep 304; After 16e/16j receives MOB_SCN-REQ in the base station; Reply mobile radio station scanning response (MOB_SCN-RSP) message to the 16m terminal; Comprise in this MOB_SCN-RSP message that whether scan period finds range to 16mbase station 16m zone and the indication of ranging response mode, this range finding is called as association (association) in the 16e standard.
Step 306; The 16m terminal obtains the channel information of16m base station 16m zone from the broadcast of 16m base station legacy zone; This broadcast can be described (downlink channel description for down channel; Abbreviate DCD as) message; And DCD message comprises Virtual network operator sign, frequency parameter, transmit power parameter, Base Station Identification, handover optimization parameter, leading parameter, subchannel parameter, the triggering switching kind length codomain field (TLV) of 16m zone in the 16m base station.
Step 310 to step 314; The 16m terminal is withdrawed from from the 16e/16j base station; Preparation switches to 16m zone in the 16m base station; Handoff request (MOB_MSHO_REQ) is sent to the 16e/16j base station in the 16m terminal, and after the answer that obtains the 16e/16j base station (MOB_BSHO_RSP), 16m sends at the terminal acknowledge message (MOB_HO_IND).
Particularly; Switch to from the 16e/16j base station in 16m terminal decision under the situation of 16m zone of certain 16m base station; This decision can be made or made by the 16e/16j base station by the 16m terminal voluntarily; Wherein make decision voluntarily and use message (MOB_MSHO_REQ) thenotice 16e/16j base station that comprises one or more switching targets station in the 16m terminal; 16e/16j makes decision the base station and notifies the 16m terminal to comprise and use message (MOB_BSHO_RSP) thenotice 16m terminal that comprises one or more switching targets station, and the 16m terminal uses the message (MOB_HO_IND) that comprises one or more switching targets station to provide feedback.
In addition, the 16m terminal can also determine to cancel the 16m zone that switches to certain 16m base station from the 16e/16j base station, and perhaps end and being connected of 16e/16j base station at the 16m terminal.
Cancel at the 16m terminal under the situation of the 16mzone that switches to certain 16m base station from the 16e/16j base station; This decision is made and is notified the 16e/16j base station or voluntarily by making and notify 16m the terminal in the 16e/16j base station by the 16m terminal; Wherein make decision voluntarily and use the message informing 16e/16j base station that comprises the handover cancelling indication in the 16m terminal; 16e/16j makes decision the base station and notifies the 16m terminal to comprise and use the message informing 16m terminal that comprises the handover cancelling indication, and the 16m terminal provides feedback.Not shown this kind situation in Fig. 3.
End under the situation about being connected with the 16e/16j base station at the 16m terminal; Send for the 16e/16j base station comprising the 16m terminal and comprise the message of ending to connect indication; 16e/16j starts a timer after receiving the base station message; Timer discharges all and the resource of 16m terminal relevant connection to after date, receives the message that comprises the handover cancelling indication before timer expires, and cancels timer.Not shown this kind situation in Fig. 3.
Step 316 to step 318,16m terminal 16m zone in the 16m base station sends distance measurement request, and its purpose is to identify the 16m terminal and has successfully inserted 16m zone.
Particularly, after the 16m zone of 16m terminal and 16m base station is synchronous, on the range measurement resource that distributes, send ranging code, and according to 16m base station line parameter on 16m zone feedback is used for adjustment.This feedback comprises: use the ranging code of receiving as the sign that feeds back to certain 16m terminal, the relative value of operation parameter or absolute value are as the indication of adjustment.
Ranging code is sent at the 16m terminal on the range measurement resource that distributes mode comprises: adopt and specify ranging code to adopt at random access way to send, perhaps, adopt at random that ranging code sends on assigned timeslot, perhaps, adopt and specify ranging code on assigned timeslot, to send.
Wherein, Range finding can be to send distance measurement request (RNG_REQ) message, and RNG_REQ can send on Fast Ranging IE, and Fast Ranging IE provides in the MOB_BSHO_RSP of serving BS message; And; 16m zone transmits a reply message (RNG_RSP) for the 16m terminal after receiving RNG_REQ, and at this moment, 16m terminal check oneself has successfully inserted 16m zone.
Step 320, remaining access process is accomplished at 16m zone in the 16m terminal.
Particularly, this access process comprises: step 1, and basic capability negotiating, the basic capacity report message is sent at the 16m terminal, and feedback message is sent at 16m zone station in the 16m base station;
Step 2, the 16m zone process that the 16m base station is inserted at the 16m terminal comprises authentication, and authentication request message is sent at the 16m terminal, and feedback message is sent at 16m zone in the 16m base station;
Step 3, the 16m zone process that the 16m base station is inserted at the 16m terminal comprises registration, and login request message is sent at the 16m terminal, and feedback message is sent at 16m zone in the 16m base station;
The 16m zone process that step 4,16m terminal insert the 16m base station comprises and connecting that the request message that connects is sent at 16m zone in the 16m base station, and the response message that connects is sent at the 16m terminal.
So far, the handoff procedure of the 16m zone from the 16e/16j base station to the 16m base station has been accomplished at the 16m terminal.
Fig. 4 shows a kind of signaling process flow process of changing method according to the preferred embodiment of the invention, and as shown in Figure 4, this signaling process flow process comprises step 402 to step 418.
Specifically describe the details of this signaling process process below.
Step 402 to step 406 is identical with above-mentioned steps 302 to step 306, is not giving unnecessary details.
Step 408 to step 412 is identical with above-mentionedsteps 310 to step 314, is not giving unnecessary details.
The 16m zone of 16m terminal and 16m base station synchronously after, line parameter in acquisitions, 16m terminal transmission ranging code also feeds back at 16m zone according to the 16m base station and to adjust line parameter.This feedback comprises: use the ranging code of receiving as the sign that feeds back to certain 16m terminal, the relative value of operation parameter or absolute value are as the indication of adjustment.
Wherein, ranging code adopts access way transmission at random to the mode of 16m terminal transmission ranging code in order to adopt at random, and range finding can be an initial ranging.
Step 416 to step 418 is identical with above-mentionedsteps 318 to step 320, repeats no more.
Can find out that step 402 to step 418 is with the difference of step 302 to step 320: after the 16m terminal is scanned 16m base station legacy zone, 16m zone is found range according to the mode of confirming in the scanning process.
The changing method that provides through present embodiment; Can make the terminal through from the broadcast of the traditional area of target BS, obtaining the channel information of the target area of target BS; And, can switch to the target area of target BS according to this channel information from the service station.
Carry out detailed explanation in the face of the scheme of directly obtaining the channel information in target area targeting signal or the broadcast of the present invention down.
The first step, the target area that mobile radio station obtains the neighbours base station through predetermined way do not have the targeting signal of connection identifier (CID or the channel information of all target areas in the broadcast of connection identifier (CID are arranged; It is one of following that this channel information comprises at least: the physical signalling intensity of target area, range measurement resource.
Wherein, above-mentioned predetermined way is specially: mobile radio station scans the target area.This scanning can initiatively be initiated scan request to the service station by mobile radio station; Also can initiate scan request by the service station, mobile radio station scans in response to the scan request of service station transmission.
And above-mentioned mobile radio station scans the target area and is specially: mobile radio station carries out cycle or aperiodic scanning to traditional area.
In addition, after above-mentioned mobile radio station obtained channel information, mobile radio station need be found range according to channel information, and what it was concrete is treated to:
1, mobile radio station carry out according to the channel information that obtains and target area synchronous after; The broadcast in mobile radio station receiving target zone; On the range measurement resource that broadcast is distributed, send the initial ranging sign indicating number; Wherein, be under the situation of ranging code at random at the initial ranging sign indicating number, adopt access way at random to send ranging code at random in the zone of broadcast (the for example up identification message) indication of target area;
2, mobile radio station in the target area receiving feedback information, wherein, feedback information comprises range measurement resource or the sign that network in the switching gets into.
In second step, mobile radio station switches to the target area of definite target BS from the service station according to the channel information of the target BS of confirming after confirming target BS according to channel information.
In second step, above-mentioned mobile radio station switches to according to relevant information after the target area, and mobile radio station also need send distance measurement request message to the target area.Mobile radio station can send distance measurement request message on the pre-assigned resource in target area; Mobile radio station also can send distance measurement request message according to adjusted initial ranging feedback information.
And, before distance measurement request message is sent in the target area, also comprise following processing at mobile radio station:
1, after mobile radio station and target area were carried out synchronously, mobile radio station sent the initial ranging sign indicating number, wherein, is under the situation of ranging code at random at the initial ranging sign indicating number, adopted at random access way to send ranging code at random; Under the situation of initial ranging sign indicating number, adopt access way transmission at random to specify ranging code for the appointment ranging code; At the initial ranging sign indicating number is under the situation of ranging code at random, is employed in the mode of sending on the assigned timeslot and sends ranging code at random; Under the situation of initial ranging sign indicating number, be employed in the mode of sending on the assigned timeslot and send the appointment ranging code for the appointment ranging code;
2, mobile radio station receives the initial ranging feedback information.
In addition, above-mentioned mobile radio station further comprises after distance measurement request message is sent in the target area: mobile radio station receives ranging response message, and obtain range measurement resource information, adjustment parameter, initial ranging in the ranging response message in successfully indicating one of at least.
Below, in conjunction with instance, technique scheme of the present invention is illustrated.
Fig. 5 shows the signaling process flow process of the changing method of the another preferred embodiment according to the present invention, and is as shown in Figure 5, and this signaling process flow process comprises step 502 to step 518.
Specifically describe the details of this signaling process process below.
Step 502 to step 504; Step 502; The 16m terminal will be carried out the 16m zone of 16m base station periodically or ground scanning aperiodic, so that obtain the channel information of 16m zone in due course for the channel information of the 16m zone that obtains the 16m base station.
Particularly, in step 502, the 16m terminal uses mobile radio station scan request (MOB_SCN-REQ) message initiatively to initiate scanning to current service station (that is, the 16e/16j base station), and this scanning can be that perhaps aperiodic, initiated on ground periodically; In addition, this scan request also can be to be initiated by current service station, the not shown situation of being initiated scan request by current service station among Fig. 5.
In step 504; After 16e/16j receives MOB_SCN-REQ in the base station; Reply mobile radio station scanning response (MOB_SCN-RSP) message to the 16m terminal; Comprise in this MOB_SCN-RSP message that whether scan period finds range to 16mbase station 16m zone and the indication of ranging response mode, this range finding is called as association (association) in the 16e standard.
Further, the 16m terminal is according to the channel information of 16m zone, sends ranging code at 16m zone, the 16m terminal after 16m zone receives the range finding feedback information or gets back to the 16e/16j base station under the 16e/16j base station receiving feedback information.This feedback message can comprise the special ranging sign indicating number of initial ranging or the time slot of special-purpose transmission ranging code.
Step 508 to step 518 is identical with above-mentionedsteps 310 to step 320, repeats no more.
The changing method that provides through present embodiment; Can make the terminal through from the preface information of the target area of target BS or broadcast, obtaining the channel information of the target area of target BS; And, can switch to the target area of target BS according to this channel information from the service station.
Device is embodiment
According to embodiments of the invention, a kind of mobile radio station is provided, be used for switching to the target area of Target Station from the service station.
Fig. 6 shows the structure according to the mobile radio station of apparatus of the present invention embodiment, and is as shown in Figure 5, and this mobile radio station comprises acquisition module 62, determination module 64 handover modules 66.
Function in the face of above-mentioned module is elaborated down.
Acquisition module 62 is used for obtaining through predetermined way the channel information of target area of the traditional area broadcast of target BS; In addition, above-mentioned acquisition module 62 can also be used for obtaining through predetermined way the channel information of all target areas of target area targeting signal or the broadcast of neighbours base station.
Wherein, the channel information of the target area in the traditional area broadcast comprises: the Virtual network operator sign of target area, the frequency parameter of target area, the transmit power parameter of target area, base station station identifications, handover optimization parameter, leading parameter, subchannel parameter, triggering are switched kind length and are referred to the territory field.The target area targeting signal of target BS or the channel information of the target area in the broadcast comprise: the physical signalling intensity of target area, range measurement resource.
Determination module 64 is connected to acquisition module 62, is used for confirming target BS according to the channel information that acquisition module 62 obtains.
Handover module 66; Be connected to acquisition module 62 and determination module 64; Be used for the target BS confirmed according to determination module 64, and the channel information of the above-mentioned target BS that obtains according to acquisition module 62, make mobile radio station switch to the target area of definite target BS from the service station.
Further, above-mentioned mobile radio station can also comprise: scan module is used for traditional area is scanned.Wherein, scan module can initiatively be initiated scan request to the service station; Perhaps, scan module also can be in response to the scan request of service station transmission; Scan module can carry out cycle or aperiodic scanning to traditional area.
Range finder module is used for finding range according to channel information.
In sum; By means of technical scheme of the present invention; The terminal is through obtaining the channel information of the target area of target BS from the traditional area broadcast of target BS, and, can switch to the target area of target BS according to this channel information from the service station; Realized the terminal directly when set out in advance to make arrangements and the tradition station between switching purpose, thereby make the terminal between compatible system, to switch quickly and efficiently.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (28)
1. a changing method is used for mobile radio station switches to target BS from the service station target area, it is characterized in that said method comprises:
Said mobile radio station obtains the channel information of all target areas in the broadcast of neighbours base station traditional area through predetermined way; And after confirming target BS, switch to the target area of definite said target BS from said service station according to the channel information of the said target BS of confirming according to the channel information of said all target areas.
2. method according to claim 1 is characterized in that, said predetermined way is specially:
Said mobile radio station scans said traditional area.
3. method according to claim 2 is characterized in that, before said mobile radio station scanned said traditional area, said method further comprised:
Said mobile radio station is initiatively initiated scan request to said service station; Perhaps, said mobile radio station is in response to the scan request of said service station transmission.
4. method according to claim 3 is characterized in that, said mobile radio station scans said traditional area and is specially:
Said mobile radio station carries out cycle or aperiodic scanning to said traditional area.
One of 5. method according to claim 1 is characterized in that, below said channel information specifically comprises at least:
The transmit power parameter of the Virtual network operator sign of said target area, the frequency parameter of said target area, said target area, base station station identifications, handover optimization parameter, leading parameter, subchannel parameter, triggering are switched kind length and are referred to the territory field.
6. method according to claim 1 is characterized in that, said mobile radio station further comprises after obtaining said channel information:
Said mobile radio station is found range according to said channel information.
7. method according to claim 6 is characterized in that said mobile radio station is found range according to said channel information and is specially:
Said mobile radio station carried out synchronously according to said channel information and said target area after, said mobile radio station sent the initial ranging sign indicating number, wherein, be under the situation of ranging code at random at said initial ranging sign indicating number, adopted the said ranging code at random of access way transmission at random; Said initial ranging sign indicating number for the situation of specifying ranging code under, adopt at random access way to send said appointment ranging code; At said initial ranging sign indicating number is under the situation of ranging code at random, is employed in the mode of sending on the assigned timeslot and sends said ranging code at random;
Under the situation of said initial ranging sign indicating number, be employed in the mode of sending on the assigned timeslot and send said appointment ranging code for the appointment ranging code;
Said mobile radio station is receiving feedback information in said target area or in said service station, and wherein, said feedback information comprises range measurement resource or the sign that network gets in the switching.
8. method according to claim 1 is characterized in that, said mobile radio station switches to after the said target area according to said relevant information, further comprises:
Said mobile radio station sends distance measurement request message to said target area.
9. method according to claim 8 is characterized in that, said mobile radio station is before said distance measurement request message is sent in said target area, and said method further comprises:
After said mobile radio station and said target area were carried out synchronously, said mobile radio station sent the initial ranging sign indicating number, wherein, be under the situation of ranging code at random at said initial ranging sign indicating number, adopted the said ranging code at random of access way transmission at random; Said initial ranging sign indicating number for the situation of specifying ranging code under, adopt at random access way to send said appointment ranging code; At said initial ranging sign indicating number is under the situation of ranging code at random, is employed in the mode of sending on the assigned timeslot and sends said ranging code at random; Under the situation of said initial ranging sign indicating number, be employed in the mode of sending on the assigned timeslot and send said appointment ranging code for the appointment ranging code;
Said mobile radio station receives the initial ranging feedback information.
10. method according to claim 9 is characterized in that, the processing that said mobile radio station sends said distance measurement request message to said target area is specially:
Said mobile radio station sends said distance measurement request message on the pre-assigned resource in said target area; Perhaps said mobile radio station sends said distance measurement request message according to adjusted initial ranging feedback information.
11. method according to claim 10 is characterized in that, said mobile radio station further comprises after said distance measurement request message is sent in said target area:
Said mobile radio station receives ranging response message, and obtain range measurement resource information, adjustment parameter, initial ranging in the said ranging response message in successfully indicating one of at least.
12. method according to claim 1; It is characterized in that said mobile radio station is for supporting the mobile radio station of old communication protocol and new traffic agreement, said service station is for supporting the base station or the relay station of old communication protocol; Said target BS is for supporting the base station or the relay station of old communication protocol and new traffic agreement; Wherein, the traditional area of said target BS uses old communication protocol for the mobile radio station of supporting old communication protocol service to be provided, and the new traffic agreement is supported in the target area of said target BS.
13. a changing method is used for mobile radio station switches to target BS from the service station target area, it is characterized in that said method comprises:
Said mobile radio station obtains the channel information of all target areas in the target area targeting signal of neighbours base station through predetermined way; And after confirming target BS according to said channel information, switch to the target area of definite said target BS from said service station according to the channel information of the said target BS of confirming.
14. method according to claim 13 is characterized in that, after said mobile radio station obtained the channel information of the said target area in the target area targeting signal of said target BS, said method further comprised:
Said mobile radio station obtains the channel information of the said target area in the target area broadcast of said target BS through predetermined way.
15., it is characterized in that said predetermined way is specially according to claim 13 or 14 described methods:
Said mobile radio station scans said target area.
16. method according to claim 15 is characterized in that, before said mobile radio station scanned said target area, said method further comprised:
Said mobile radio station is initiatively initiated scan request to said service station; Perhaps, said mobile radio station is in response to the scan request of said service station transmission.
17. method according to claim 16 is characterized in that, said mobile radio station scans said target area and is specially:
Said mobile radio station carries out cycle or aperiodic scanning to said traditional area.
One of 18. according to claim 13 or 14 described methods, it is characterized in that, below said channel information specifically comprises at least:
The physical signalling intensity of said target area, range measurement resource.
19., it is characterized in that said mobile radio station further comprises after obtaining said channel information according to claim 13 or 14 described methods:
Said mobile radio station is found range according to said channel information.
20. method according to claim 19 is characterized in that said mobile radio station is found range according to said channel information and is specially:
Said mobile radio station and said target area are carried out synchronously according to said channel information after; Said mobile radio station receives the broadcast of said target area; And on the range measurement resource of said broadcast distribution, send the initial ranging sign indicating number; Wherein, be under the situation of ranging code at random at said initial ranging sign indicating number, adopt access way at random to send said ranging code at random in the zone of the said broadcast indication of said target area;
Said mobile radio station is receiving feedback information in said target area, and wherein, said feedback information comprises range measurement resource or the sign that network gets in the switching.
21., it is characterized in that said mobile radio station switches to after the said target area according to said relevant information, further comprises according to claim 13 or 14 described methods:
Said mobile radio station sends distance measurement request message to said target area.
22. method according to claim 21 is characterized in that, said mobile radio station is before said distance measurement request message is sent in said target area, and said method further comprises:
After said mobile radio station and said target area were carried out synchronously, said mobile radio station sent the initial ranging sign indicating number, wherein, be under the situation of ranging code at random at said initial ranging sign indicating number, adopted the said ranging code at random of access way transmission at random; Said initial ranging sign indicating number for the situation of specifying ranging code under, adopt at random access way to send said appointment ranging code; At said initial ranging sign indicating number is under the situation of ranging code at random, is employed in the mode of sending on the assigned timeslot and sends said ranging code at random; Under the situation of said initial ranging sign indicating number, be employed in the mode of sending on the assigned timeslot and send said appointment ranging code for the appointment ranging code;
Said mobile radio station receives the initial ranging feedback information.
23. method according to claim 22 is characterized in that, the processing that said mobile radio station sends said distance measurement request message to said target area is specially:
Said mobile radio station sends said distance measurement request message on the pre-assigned resource in said target area; Perhaps said mobile radio station sends said distance measurement request message according to adjusted initial ranging feedback information.
24. method according to claim 23 is characterized in that, said mobile radio station further comprises after said distance measurement request message is sent in said target area:
Said mobile radio station receives ranging response message, and obtain range measurement resource information, adjustment parameter, initial ranging in the said ranging response message in successfully indicating one of at least.
25. method according to claim 13; It is characterized in that said mobile radio station is for supporting the mobile radio station of old communication protocol and new traffic agreement, said service station is for supporting the base station or the relay station of old communication protocol; Said target BS is for supporting the base station or the relay station of old communication protocol and new traffic agreement; Wherein, the traditional area of said target BS uses old communication protocol for the mobile radio station of supporting old communication protocol service to be provided, and the new traffic agreement is supported in the target area of said target BS.
26. a mobile radio station is used for switching to from the service station target area of target BS, it is characterized in that said mobile radio station comprises:
Acquisition module is used for obtaining through predetermined way the channel information of said target area of the traditional area broadcast of said target BS; Perhaps, be used for obtaining the channel information of all target areas of target area targeting signal or the broadcast of neighbours base station through predetermined way;
Determination module is used for confirming target BS according to said channel information.
Handover module, the channel information of the said target BS that is used for confirming according to said determination module switches to the target area of definite said target BS from said service station.
27. mobile radio station according to claim 26 is characterized in that, said mobile radio station further comprises:
Scan module is used for said traditional area is scanned.
28. mobile radio station according to claim 27 is characterized in that, said mobile radio station further comprises:
Range finder module is used for finding range according to said channel information.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102138966ACN101674625B (en) | 2008-09-11 | 2008-09-11 | Switching method and mobile station |
| PCT/CN2008/073900WO2010028530A1 (en) | 2008-09-11 | 2008-12-31 | Handoff method and mobile station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102138966ACN101674625B (en) | 2008-09-11 | 2008-09-11 | Switching method and mobile station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101674625A CN101674625A (en) | 2010-03-17 |
| CN101674625Btrue CN101674625B (en) | 2012-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102138966AExpired - Fee RelatedCN101674625B (en) | 2008-09-11 | 2008-09-11 | Switching method and mobile station |
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| Country | Link |
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| CN (1) | CN101674625B (en) |
| WO (1) | WO2010028530A1 (en) |
Citations (3)
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|---|---|---|---|---|
| US5987332A (en)* | 1997-08-28 | 1999-11-16 | Motorola, Inc. | Method of providing a subscriber unit with neighbor cell information during ongoing communication |
| CN1754329A (en)* | 2003-03-08 | 2006-03-29 | 三星电子株式会社 | System and method for performing handover operations in a broadband wireless access communication system |
| CN101006663A (en)* | 2004-08-17 | 2007-07-25 | 三星电子株式会社 | Method and system for forming and transmitting/receiving neighbor base station information in a broadband wireless access communication system |
- 2008
- 2008-09-11CNCN2008102138966Apatent/CN101674625B/ennot_activeExpired - Fee Related
- 2008-12-31WOPCT/CN2008/073900patent/WO2010028530A1/enactiveApplication Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5987332A (en)* | 1997-08-28 | 1999-11-16 | Motorola, Inc. | Method of providing a subscriber unit with neighbor cell information during ongoing communication |
| CN1754329A (en)* | 2003-03-08 | 2006-03-29 | 三星电子株式会社 | System and method for performing handover operations in a broadband wireless access communication system |
| CN101006663A (en)* | 2004-08-17 | 2007-07-25 | 三星电子株式会社 | Method and system for forming and transmitting/receiving neighbor base station information in a broadband wireless access communication system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010028530A1 (en) | 2010-03-18 |
| CN101674625A (en) | 2010-03-17 |
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