CN101299878B - Method for monitoring channel switching process as well as terminal - Google Patents
Method for monitoring channel switching process as well as terminal Download PDFInfo
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- CN101299878B CN101299878B CN2007101071451A CN200710107145A CN101299878B CN 101299878 B CN101299878 B CN 101299878B CN 2007101071451 A CN2007101071451 A CN 2007101071451A CN 200710107145 A CN200710107145 A CN 200710107145A CN 101299878 B CN101299878 B CN 101299878B
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Abstract
The invention discloses a method for monitoring packet transmission channel in the switching process between access network sub-districts and other sub-districts using random access techniques. In the packet transmission channel switch process, the terminal or universal access network controller triggers the releasing protection operations to packet transmission channel, thereby avoiding the release of packet transmission channel. The invention also discloses the corresponding terminal and universal access network controller. Since the invention logically links together the packet transmission channel switch process and the monitoring of the packet transmission channel, the packet transmission channel will not release beforehand in the switching process, and the terminal can smoothly and timely come back in the source sub-district for avoiding service jitter when abnormity occurs in the switching process.
Description
Technical field
The present invention relates to the mobile communication technology field, be specifically related to method for supervising and relevant terminal and general access network controller in the packet transmission channel handoff procedure relevant with universal access network.
Background technology
In mobile communication network, Access Network is as the bridge between terminal use and core switching network, and its ability to communicate directly influences the experience of user to the service of moving.Along with the continuous development of low coverage wireless communication technique, it more and more comes into one's own with the advantage of high access bandwidth and low communication cost.Popularize just rapidly in the mode of exempting to authorize frequency range that wireless access is provided based on the low coverage wireless communication technique, in local even metropolitan area scope, with the conventional wireless Access Network and deposit.Therefore, the conventional wireless Access Network, for example the Access Network (GERAN:GSM EDGE Radio Access Network) of universal mobile telecommunications system (UMTS:Universal Mobile Telecommunications System) grounding wireless access network (UTRAN:UMTS Terrestrial Radio Access Network) and global system for mobile communications (GSM:Global System for Mobile communications) and enhanced data rates version (EDGE:Enhanced Data rate for GSM Evolution) thereof and employing exempt to authorize the seamless switching and the roaming of moving between the universal access network (GAN:Generic Access Network) that inserts (UMA:Unlicensed Mobile Access), become the hot technology of quite being paid close attention to.
In GAN, portable terminal is connected to general access network controller (GANC:Generic Access Network Controller) by general access IP network (Generic Access IP Network) and carries out communication, and GANC is equivalent to the base station sub-system (BSS:Base Station Subsystem) of GERAN sub-district.Wherein general access IP network provides WAP (wireless access point).
Carry out the transmission of user data by setting up data transmission channel between portable terminal and the GANC, make it possible to divide into groups respectively, circuit domain business, or divide into groups simultaneously and circuit domain business.The packet transmission channel that carries out the grouping user transfer of data between portable terminal and the GANC is called general access packet-switched resources transmission channel (GA-PSR Transport Channel), utilize conventional method that this channel carries out packet data transmission as shown in Figure 1, comprising:
1, carry out the activation process of GA-PSR Transport Channel, activate this channel after, starting terminal grouped channels timer (GA-PSR Channel Timer);
2, after terminal encapsulates ascending packet data, send to GANC, and restart the grouped channels timer;
3, GANC is forwarded to core net (CN:Core Network) with the ascending packet data of receiving;
4, CN converting downlink grouped data is to GANC;
5, GANC confirms that the GA-PSR Transport Channel of counterpart terminal can use, and with sending to terminal after the downlink grouped data encapsulation, when terminal receives this message, restarts the grouped channels timer;
6, above-mentioned packet data transmission process comprises step 2～5, may carry out several times;
7, in above-mentioned packet data transmission process, when the grouped channels timer expiry, terminal sends packet transmission channel to GANC and discharges information, and corresponding GA-PSR Transport Channel is released, and packet data transmission finishes.
By foregoing description as can be seen, the packet transmission channel between terminal and the GANC is monitored by the grouped channels timer, in case this timer expiry, terminal promptly triggers the release flow process of GA-PSR Transport Channel.
In addition, when business is just being carried out between terminal and GANC, may terminal need be switched to other wireless access network sub-districts, for example certain GERAN sub-district owing to link failure or other reasons occur between terminal and GANC.If include Packet data service in the business that this moment, terminal was carried out, then need to carry out packet transmission channel and switch.In whole wireless network, generally GANC is configured to a cellular cell in a route district or the lane place, so just can be implemented in switching and roaming between GAN and other Access Networks.When carrying out the packet transmission channel switching, the switching command that terminal issues according to source GANC is carried out the switching of Target cell.The failure if switch, terminal need be got back to GAN sub-district, source.
Need to prove that alleged " packet transmission channel switching " has general implication herein, general reference is switched all kinds that include packet transmission channel in the object.For example, comprise and only carry out the grouping switching type that packet transmission channel switches, also comprise and mix the mixing switching type that carries out packet transmission channel and the switching of other channels.In mixing the switching situation, this paper alleged " packet transmission channel switching " refers to the part relevant with the switching of packet transmission channel in this mixing switching.
In the invention process, the inventor finds that there are the following problems at least in the prior art: in GAN, do not have in logic related between the monitoring of existing packet transmission channel handoff procedure and packet transmission channel.This just causes existing such possibility, promptly, terminal possibility handoff failure, need get back to GAN sub-district, source, and overtime in order to the grouped channels timer of monitoring packet transmission channel, and triggered grouped channels dispose procedure between terminal and the GANC, cause the grouped channels between terminal and the source GANC unavailable, need to activate again, caused certain business shake.
Summary of the invention
The embodiment of the invention provides the method for supervising that can avoid causing in the professional packet transmission channel handoff procedure of shaking when the packet transmission channel handoff failure, comprising: terminal judges is in the packet transmission channel handoff procedure that switches universal access network sub-district, source; Terminal triggers the release guard operation to the packet transmission channel in the shared universal access network; described release guard operation comprises: stop the operation of grouped channels timer; described grouped channels timer is used for sending packet transmission channel release information at the general access network controller of overtime back triggering terminal to universal access network sub-district, source
Perhaps, described release guard operation comprises: monitor the operation of described grouped channels timer, behind described grouped channels timer expiry, restart described grouped channels timer, do not trigger releasing operation described packet transmission channel,
Perhaps, described release guard operation comprises: start first timer, behind described grouped channels timer expiry, judge whether described first timer is overtime, if not, then do not trigger the releasing operation to described packet transmission channel.
The embodiment of the invention also provides relevant terminal.
The embodiment of the invention adopts in the packet transmission channel handoff procedure, is triggered by terminal or general access network controller the release guard of packet transmission channel is operated, and avoids sending or refusing to carry out the method that packet transmission channel discharges information.Because the monitoring of packet transmission channel handoff procedure and packet transmission channel is logically associated, make packet transmission channel in handoff procedure, can not discharged too early, when the switching generation is unusual, terminal can be got back in the universal access network sub-district, source smoothly timely, avoids causing professional shake.
Description of drawings
Fig. 1 is the method flow schematic diagram that carries out the grouping user transfer of data between existing terminal and the GANC;
Fig. 2 is the method for supervising schematic flow sheet in the packet transmission channel handoff procedure that disclosed of the embodiment of the invention one;
Fig. 3 is the method for supervising schematic flow sheet in the packet transmission channel handoff procedure that disclosed of the embodiment of the invention two;
Fig. 4 is the method for supervising schematic flow sheet in the packet transmission channel handoff procedure that disclosed of the embodiment of the invention three;
Fig. 5 is the method for supervising schematic flow sheet in the packet transmission channel handoff procedure that disclosed of the embodiment of the invention four;
Fig. 6 is the method for supervising schematic flow sheet in the packet transmission channel handoff procedure that disclosed of the embodiment of the invention five;
Fig. 7 is the method for supervising schematic flow sheet in the packet transmission channel handoff procedure that disclosed of the embodiment of the invention six;
Fig. 8 is the logical construction schematic diagram of the terminal that disclosed of the embodiment of the invention seven;
Fig. 9 is the logical construction schematic diagram of the terminal that disclosed of the embodiment of the invention eight;
Figure 10 is the logical construction schematic diagram of the terminal that disclosed of the embodiment of the invention nine;
Figure 11 is the logical construction schematic diagram of the terminal that disclosed of the embodiment of the invention ten;
Figure 12 is the general access network controller logical construction schematic diagram that the embodiment of the invention 11 is disclosed;
Figure 13 is the general access network controller logical construction schematic diagram that the embodiment of the invention 12 is disclosed.
Embodiment
The embodiment of the invention provides the method for supervising in the packet transmission channel handoff procedure; by GAN sub-district, source in the packet transmission channel handoff procedure of Target cell; by terminal or general access network controller triggering the release guard of packet transmission channel is operated, avoided sending or refusal execution packet transmission channel release information.The embodiment of the invention also further provides by the method for supervising of cell-of-origin in the packet transmission channel handoff procedure of target GAN sub-district.In addition, the embodiment of the invention also provides relevant terminal and general access network controller.Below respectively the method and apparatus of the embodiment of the invention is elaborated.
Method for supervising in embodiment one, a kind of packet transmission channel handoff procedure, relate in the present embodiment terminal by GAN sub-district, source to adopting wireless access technology (RAT, the switching of other sub-districts Radio Access Technology), and have Packet Service to carry out between terminal and network, RAT can be GERAN, UTRAN or GAN.Method flow comprises as shown in Figure 2:
A1, terminal judges are in the packet transmission channel handoff procedure that switches GAN sub-district, source;
In GAN, the packet transmission channel that leaves GAN sub-district, source switches and can be initiated by GANC or terminal, provide following several concrete triggering mode in the present embodiment, under different triggering modes, terminal can be made the judgement that is in the packet transmission channel handoff procedure according to corresponding information:
One, switching is triggered by terminal.Terminal descends by the GA-PSR Transport Channel quality between local measurement discovery and the GANC, thereby send switching Reference News (GA-PSR Handover Information) to GANC, GANC sends packet transmission channel handover preparation request information (PS Handover Required) in view of the above to core-network side, the execution that begins to switch.
Under this mode, terminal can be a foundation to send switching Reference News, judges to be in the handoff procedure.
Two, switching is triggered by GANC.GANC measures the GA-PSR Transport Channel situation of designated terminal, comprises the error rate, delay, and system loading etc.GANC is according to self measurement result and system configuration, for example GERAN or UTRAN Lin Qu the configuration etc., selected target sub-district when the quality of terminal GA-PSR Transport Channel is reduced to a certain degree, send packet transmission channel handover preparation request information to core-network side, the execution that begins to switch.GANC notifies terminal after switching initiation.
Under this mode, terminal can be a foundation to receive switching notice, judges to be in the handoff procedure.
Three, switch triggering, judge by terminal again by GANC.GANC can be when finding that GA-PSR Transport Channel quality drops to a certain degree, send link-quality indication information (GA-PSR Uplink Quality Indication) and give terminal, indication need be switched, judge that according to the link-quality indication information of receiving needs send switching Reference News to GANC by terminal, GANC sends packet transmission channel handover preparation request information in view of the above to core-network side, the execution that begins to switch.
Under this mode, terminal can be a foundation to receive the link-quality indication information, is foundation to send switching Reference News perhaps, judges to be in the handoff procedure.
Being understood that easily above-mentioned listed judgment mode only is an example, is not exhaustive, does not constitute the restriction to the embodiment of the invention.
A2, terminal trigger the release guard operation to the packet transmission channel in the shared universal access network, and described release guard operation is used to avoid carrying out the release of packet transmission channel;
Judgement is in after the packet transmission channel handoff procedure that switches GAN sub-district, source terminal according to relevant information, promptly triggers the release guard operation to GA-PSR Transport Channel.Because the general at present grouped channels timer GA-PSR Channel Timer that adopts monitors GA-PSR Transport Channel; therefore; a kind of simple directly release guard operation executive mode is provided in the present embodiment, that is: stops the operation of grouped channels timer.Like this, between transfer period, send packet transmission channel release information at packet transmission channel, thereby avoid carrying out the release of packet transmission channel with regard to not triggering to source GANC because of the grouped channels timer expiry.If terminal is because handoff failure comes back to GAN sub-district, source, the grouped channels timer will be restarted, and continues to use GA-PSR Transport Channel to carry out transfer of data, enters normal monitor procedure.
Monitoring with packet transmission channel handoff procedure and packet transmission channel in the present embodiment logically associates; a kind of simple directly release guard operation executive mode is provided; make packet transmission channel in handoff procedure, can not discharged too early; when the switching generation is unusual; terminal can be got back in the universal access network sub-district, source smoothly timely, avoids causing professional shake.
Method for supervising in embodiment two, a kind of packet transmission channel handoff procedure relates to terminal and is switched by the packet transmission channel of GAN sub-district, source to target RAT sub-district in the present embodiment.The main distinction part of present embodiment and embodiment one is, is triggered the execution of release guard operation by source GANC.Method flow comprises as shown in Figure 3:
B1, source GANC judge that certain terminal is in the packet transmission channel handoff procedure that switches this sub-district;
Under different packet transmission channel handover trigger modes, source GANC can make the judgement that terminal is in the packet transmission channel handoff procedure according to corresponding information.For example, in the mode of enumerating in embodiment one one, source GANC can be a foundation to send packet transmission channel handover preparation request information perhaps to receive that switching Reference News is foundation, judges that associated terminal is in the handoff procedure; In mode two, source GANC can be a foundation to send packet transmission channel handover preparation request information, judges that associated terminal is in the handoff procedure; In mode three, source GANC can be a foundation to send the link-quality indication information, perhaps to receive that switching Reference News is foundation, is foundation to send packet transmission channel handover preparation request information perhaps, judges that associated terminal is in the handoff procedure.
When source GANC receive or self produce this end packet transmission channel handover cancelling or failure or the information that completes successfully after, judge that then associated terminal is not in the handoff procedure.
B2, source GANC trigger the release guard operation to the shared packet transmission channel of this terminal, and described release guard operation is used for refusal described packet transmission channel is discharged.
Source GANC can be after receiving the packet transmission channel release information that terminal sends; carry out the judgement of step B1; if being in, the judgement terminal then triggers the release guard operation in the handoff procedure; promptly refusal is carried out packet transmission channel release; and can return to terminal and also can not return refusal release information; can comprise Reason For Denial in the refusal release information, in carrying out as switching.
Source GANC also can be after judging that terminal is in the handoff procedure, promptly trigger the release guard operation, it for example is this starting terminal timer, at the timer run duration, if receiving the packet transmission channel release information that this terminal sends then refuses to carry out, also can return refusal release information, can comprise Reason For Denial in the refusal release information, in carrying out as switching; Source GANC can close corresponding timer when judging that associated terminal no longer is in the handoff procedure, recover the normal response of information that packet transmission channel is discharged.
Carry out when switching the packet transmission channel that this sub-district and switching in terminal by source GANC in the present embodiment; the packet transmission channel that terminal is taken carries out the release guard operation; make packet transmission channel in handoff procedure, can not discharged too early; when the switching generation is unusual; terminal can be got back in the universal access network sub-district, source smoothly timely, avoids causing professional shake.Simultaneously, carry out, avoid the inconvenience that terminal staging is caused owing to concentrating to the transformation of source GANC.
Method for supervising in embodiment three, a kind of packet transmission channel handoff procedure relates to terminal and is switched by the packet transmission channel of GAN sub-district, source to target RAT sub-district in the present embodiment.The difference part of present embodiment and embodiment one is, provides terminal to carry out the another kind of concrete mode of release guard operation.Method flow comprises as shown in Figure 4:
C1, terminal judges are in the packet transmission channel handoff procedure that switches GAN sub-district, source;
But the situation of enumerating in the concrete judgment mode reference example one.
C2, terminal trigger the release guard operation to the packet transmission channel in the shared universal access network; promptly; the operation of monitoring grouped channels timer; behind the grouped channels timer expiry, restart the grouped channels timer; do not trigger the release of packet transmission channel, as: the transmission that packet transmission channel discharges information do not triggered.
Restart the grouped channels timer and can define a maximum times,, no longer restart the grouped channels timer, but trigger the release of packet transmission channel, discharge information as sending packet transmission channel restarting after number of times reaches this maximum times.Maximum times can be monitored by usage counter, and as whenever restarting timer No. one time, this counter adds up 1.Counter can be set up, discharge at channel, switches when finishing etc. and carries out initialization, as the value of giving 0.
Monitoring with packet transmission channel handoff procedure and packet transmission channel in the present embodiment logically associates, make packet transmission channel in handoff procedure, can not discharged too early, when the switching generation is unusual, terminal can be got back in the universal access network sub-district, source smoothly timely, avoids causing professional shake.
Method for supervising in embodiment four, a kind of packet transmission channel handoff procedure relates to terminal and is switched by the packet transmission channel of GAN sub-district, source to target RAT sub-district in the present embodiment.The difference part of present embodiment and embodiment one is, provides terminal to carry out another concrete mode of release guard operation.Method flow comprises as shown in Figure 5:
D1, terminal judges are in the packet transmission channel handoff procedure that switches GAN sub-district, source;
But the situation of enumerating in the concrete judgment mode reference example one.
D2, terminal trigger the release guard operation to the packet transmission channel in the shared universal access network, that is:
D21, startup first timer;
D22, behind the grouped channels timer expiry, judge whether first timer is overtime, if not, then do not trigger releasing operation described packet transmission channel, for example do not trigger the transmission that packet transmission channel discharges information, and can make the reclocking of grouped channels timer.Generally speaking, the timing length of first timer is greater than the timing length of grouped channels timer.
After terminal judges successfully inserts Target cell, can stop first timer.
The timing length of first timer can also can be provided with by the signaled terminal by GANC by the terminal setting.
Monitoring with packet transmission channel handoff procedure and packet transmission channel in the present embodiment logically associates, adopt an extra timer that the transmission that packet transmission channel discharges information is monitored once more, make packet transmission channel in handoff procedure, can not discharged too early, when the switching generation is unusual, terminal can be got back in the universal access network sub-district, source smoothly timely, avoids causing professional shake.
Method for supervising in embodiment five, a kind of packet transmission channel handoff procedure relates to terminal and is switched by the packet transmission channel of GAN sub-district, source to target RAT sub-district in the present embodiment.The difference part of present embodiment and embodiment one is, provides terminal to carry out another concrete mode of release guard operation.Method flow comprises as shown in Figure 6:
E1, terminal judges are in the packet transmission channel handoff procedure that switches GAN sub-district, source;
But the situation of enumerating in the concrete judgment mode reference example one.
E2, terminal are received the release information that discharges described packet transmission channel;
This information generally sends to terminal by source GANC;
E3, terminal trigger the release guard operation to the packet transmission channel in the shared universal access network; that is: do not carry out this release information; perhaps do not carry out this release information and return refusal release information, can comprise Reason For Denial in the refusal release information, in carrying out as switching.
Method in the present embodiment can be used simultaneously with the method among embodiment one or three or four, at terminal self and the issuable packet transmission channel releasing operation of network side, packet transmission channel is carried out release guard respectively.
Monitoring with packet transmission channel handoff procedure and packet transmission channel in the present embodiment logically associates, when discharging, source GANC initiation packet transmission channel carries out the refusal operation by terminal, make packet transmission channel in handoff procedure, can not discharged too early, when the switching generation is unusual, terminal can be got back in the universal access network sub-district, source smoothly timely, avoids causing professional shake.
Method for supervising in embodiment six, a kind of packet transmission channel handoff procedure relates to terminal and is switched by the packet transmission channel of RAT sub-district, source to target GAN sub-district in the present embodiment, method flow comprises as shown in Figure 7:
F1, target GANC set up packet transmission channel for certain terminal that need cut this sub-district;
, carry out by RAT sub-district, source in the packet transmission channel handoff procedure of target GAN sub-district because certain reason in terminal, target GANC can receive the handover preparation information that core net sends, and is that terminal is set up GA-PSR Transport Channel according to this information.
F2, target GANC trigger the monitoring to this packet transmission channel after setting up packet transmission channel, when the monitoring condition of setting is reached, discharge the packet transmission channel of having set up.Two kinds of simple monitor modes are provided in the present embodiment, and these two kinds of monitor modes can select one or parallel the employing, comprising:
Mode one,
F21, packet transmission channel startup second timer for setting up;
F22, after second timer is overtime, whether the packet transmission channel of judging corresponding terminal switches and to complete successfully, and if not, then discharges the packet transmission channel of having set up; And target GANC is further this time of notification source network handoff failure also; And judge whether to be established to the link circuit resource of core net, if then discharge.
The timing length of second timer can be provided with voluntarily or be provided with by the networking configuration by GANC.
Mode two,
Whether the terminal that F23, target GANC judge to need incision is switching cancel register when not completing successfully, judgement can receive that the deregister message (GA-RC Deregister) that terminal sends is a foundation with target GANC, and perhaps sending deregister message with target GANC is foundation to terminal; If then discharge the packet transmission channel of having set up, this time of notification source network handoff failure; And judge whether to be established to the link circuit resource of core net, if then discharge.
In above-mentioned dual mode, judge that the packet transmission channel handover success of terminal is finished, can be to receive that ascending packet data or signaling that terminal sends are foundation, perhaps to receive that the handoff completion message that terminal sends is a foundation.
The present embodiment method can be used with the collocation of embodiment one～five method, when terminal is cut and cut out the GAN sub-district corresponding packet transmission channel is monitored respectively.
In the process of existing incision GAN sub-district, receive the switching command of cell-of-origin when terminal, after switching to target GAN sub-district, lost terminal takes place to cause unusually if connect, then GANC may not receive the upstream data or the handoff completion message of terminal, source GANC does not have effective monitoring means again simultaneously, can only think by the time that terminal could discharge the GA-PSR Transport Channel that has set up behind the cancel register; In addition, source GANC can not discharge the resource between GANC and the core net in time, causes the wasting of resources.Monitoring with packet transmission channel handoff procedure and packet transmission channel in the present embodiment logically associates, by source GANC the packet transmission channel of setting up for the incision terminal is monitored, make switching under the unusual situation and can in time discharging resource, avoided owing to can not in time detecting the wasting of resources that lost terminal causes.
Embodiment seven, a kind of terminal as shown in Figure 8, comprising:
Switching treatmenting unit 11, the packet transmission channel that is used to carry out from universal access network sub-district, source to Target cell switches;
Grouped channels timer 12 is used for regularly;
Channel discharge protection element 13, be used for carrying out the packet transmission channel handoff procedure at switching treatmenting unit 11, triggering is to the release guard operation of the packet transmission channel in the shared universal access network, and described release guard operation is used to avoid to send packet transmission channel to the source general access network controller and discharges information; In the present embodiment, the release guard operation that channel discharge protection element 12 triggers is presented as, sends indication out of service to grouped channels timer 12;
Channel monitoring unit 14 is used to monitor grouped channels timer 12, sends packet transmission channel in grouped channels timer 12 overtime backs to described source general access network controller and discharges information;
The present embodiment terminal can be applicable in the method for supervising in the packet transmission channel handoff procedure that embodiment one provides.
Embodiment eight, a kind of terminal as shown in Figure 9, comprising:
Grouped channels timer 22 is used for regularly;
Channel discharge protection element 23, be used for carrying out the packet transmission channel handoff procedure at switching treatmenting unit 21, triggering is to the release guard operation of the packet transmission channel in the shared universal access network, promptly, the operation of monitoring grouped channels timer 22 is restarted indication in grouped channels timer 22 overtime backs to 2 transmissions of grouped channels timer 2;
The present embodiment terminal can be applicable in the method for supervising in the packet transmission channel handoff procedure that embodiment three provides.
Embodiment nine, a kind of terminal as shown in figure 10, comprising:
Switching treatmenting unit 31, the packet transmission channel that is used to carry out from universal access network sub-district, source to Target cell switches;
Grouped channels timer 32 is used for regularly;
First timer 33 is used for regularly;
Channel discharge protection element 34 is used for carrying out the packet transmission channel handoff procedure at switching treatmenting unit 31, triggers the release guard operation to the packet transmission channel in the shared universal access network,, sends the startup indication to first timer 33 that is;
Channel monitoring unit 35 is used to monitor grouped channels timer 32, after grouped channels timer 32 is overtime, judge whether first timer 33 is overtime, if not, then do not send packet transmission channel and discharge information, restart grouped channels timer 32 to described source general access network controller; If then send packet transmission channel and discharge information to described source general access network controller.
The present embodiment terminal can be applicable in the method for supervising in the packet transmission channel handoff procedure that embodiment four provides.
Embodiment ten, a kind of terminal as shown in figure 11, comprising:
Channel discharge protection element 43 is used for triggering the release guard operation when information receiving unit 42 is received the release information that discharges described packet transmission channel, does not carry out this release information, does not perhaps carry out this release information and returns refusal release information.
The present embodiment terminal can be applicable in the method for supervising in the packet transmission channel handoff procedure that embodiment five provides.In addition; present embodiment terminal information receiving element and channel discharge protection element can merge in the terminal that is set to embodiment seven or eight or nine; concrete set-up mode can for; in embodiment seven or eight or nine terminal, increase information receiving unit, and in original channel discharge protection element, merge the function of present embodiment channel discharge protection element.
Embodiment 11, a kind of general access network controller as shown in figure 12, comprising:
Cut out processing unit 51, be used to carry out the packet transmission channel of terminal and switch from current universal access network sub-district to Target cell;
The present embodiment general access network controller can be monitored the shared packet transmission channel of the terminal that cuts out the GAN sub-district, can be applicable in the method for supervising in the packet transmission channel handoff procedure that embodiment two provides.
Embodiment 12, a kind of general access network controller as shown in figure 13, comprising:
Second channel control unit 62 is used for triggering the monitoring to described packet transmission channel after incision processing unit 61 has been set up packet transmission channel for terminal, when the monitoring condition of setting is reached, discharges the described packet transmission channel of having set up.In the present embodiment second channel control unit 62 can select one or share following two kinds of structures, and for purpose of brevity, the second channel control unit 62 that only drawn among Figure 13 share the situation of two kinds of structures, in practice, also can delete one group of structure wherein arbitrarily.
Structure one comprises:
Second timer 621 is used for regularly;
First control sub unit 622 is used for after incision processing unit 61 has been set up packet transmission channel for terminal, sends to second timer 621 to start indication, and monitoring second timer 621; After second timer 621 is overtime, judge whether the switching of described terminal completes successfully, if not, then discharge the described packet transmission channel of having set up, this time of notification source network handoff failure; And judge whether to be established to the link circuit resource of core net, if then discharge.
Structure two comprises:
Second control sub unit 624 is used for being judged as when being at registration monitoring unit 623, discharges the described packet transmission channel of having set up, this time of notification source network handoff failure; And judge whether to be established to the link circuit resource of core net, if then discharge.
The present embodiment general access network controller can be monitored the shared packet transmission channel of terminal of incision GAN sub-district, can be applicable in the method for supervising in the packet transmission channel handoff procedure that embodiment six provides.
In actual applications, the logical construction of the general access network controller that embodiment 11 and 12 provides can merge use, general access network controller after feasible the merging can be supported the monitoring function to the shared packet transmission channel of the terminal of cutting and cut out the GAN sub-district.
By the foregoing description as can be seen, the application of the embodiment of the invention makes the monitoring of packet transmission channel handoff procedure and packet transmission channel logically associate; When terminal was cut out by the GAN sub-district, packet transmission channel can not discharged in handoff procedure too early, and when the switching generation was unusual, terminal can be got back in the universal access network sub-district, source smoothly timely, avoided causing professional shake; When terminal incision GAN sub-district,, avoided owing to can not in time detecting the wasting of resources that lost terminal causes in case switchings such as generation lost terminal can in time discharge resource unusually.
More than the method for supervising in the packet transmission channel handoff procedure provided by the present invention and relevant terminal and general access network controller are described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (4)
1. the method for supervising in the packet transmission channel handoff procedure is characterized in that:
Terminal judges is in the packet transmission channel handoff procedure that switches universal access network sub-district, source;
Terminal triggers the release guard operation to the packet transmission channel in the shared universal access network; described release guard operation comprises: stop the operation of grouped channels timer; described grouped channels timer is used for sending packet transmission channel release information at the general access network controller of overtime back triggering terminal to universal access network sub-district, source
Perhaps, described release guard operation comprises: monitor the operation of described grouped channels timer, behind described grouped channels timer expiry, restart described grouped channels timer, do not trigger releasing operation described packet transmission channel,
Perhaps, described release guard operation comprises: start first timer, behind described grouped channels timer expiry, judge whether described first timer is overtime, if not, then do not trigger the releasing operation to described packet transmission channel.
2. a terminal is characterized in that, comprising:
Switching treatmenting unit, the packet transmission channel that is used to carry out from universal access network sub-district, source to Target cell switches;
The grouped channels timer is used for regularly;
The channel monitoring unit is used to monitor described grouped channels timer, and the general access network controller to universal access network sub-district, described source behind described grouped channels timer expiry sends packet transmission channel release information;
The channel discharge protection element; be used for carrying out the packet transmission channel handoff procedure at described switching treatmenting unit; triggering is to the release guard operation of the packet transmission channel in the shared universal access network; described release guard operation comprises, sends indication out of service to described grouped channels timer.
3. a terminal is characterized in that, comprising:
Switching treatmenting unit, the packet transmission channel that is used to carry out from universal access network sub-district, source to Target cell switches;
The grouped channels timer is used for regularly;
The channel monitoring unit is used to monitor described grouped channels timer, behind described grouped channels timer expiry, judges whether described grouped channels timer is restarted, if then do not trigger the releasing operation to described packet transmission channel; If not, then trigger releasing operation to described packet transmission channel;
The channel discharge protection element; be used for carrying out the packet transmission channel handoff procedure at described switching treatmenting unit; triggering is to the release guard operation of the packet transmission channel in the shared universal access network; described release guard operation comprises; monitor the operation of described grouped channels timer, behind described grouped channels timer expiry, restart indication to described grouped channels timer transmission.
4. a terminal is characterized in that, comprising:
Switching treatmenting unit, the packet transmission channel that is used to carry out from universal access network sub-district, source to Target cell switches;
The grouped channels timer is used for regularly;
First timer is used for regularly;
The channel monitoring unit is used to monitor described grouped channels timer, behind described grouped channels timer expiry, judges whether described first timer is overtime, if not, does not then trigger the releasing operation to described packet transmission channel; If then trigger releasing operation to described packet transmission channel;
The channel discharge protection element; be used for carrying out the packet transmission channel handoff procedure at described switching treatmenting unit; triggering is to the release guard operation of the packet transmission channel in the shared universal access network, and described release guard operation comprises, sends to start to described first timer and indicates.
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| CN105103615B (en) * | 2013-02-06 | 2020-01-17 | 爱立信(中国)通信有限公司 | Enhanced solution for handover |
| CN103797889B (en) * | 2013-09-23 | 2017-10-27 | 华为技术有限公司 | Control method, base station and user equipment that a kind of equipment actively discharges |
| US9980160B2 (en) * | 2015-11-25 | 2018-05-22 | Terranet Ab | Interference mitigation in dense mesh networks |
| CN108513327A (en) * | 2017-02-24 | 2018-09-07 | 北京佰才邦技术有限公司 | A kind of switching method and terminal |
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| CN1867191A (en) * | 2006-01-05 | 2006-11-22 | 华为技术有限公司 | Method and system for call hold |
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| CN1867191A (en) * | 2006-01-05 | 2006-11-22 | 华为技术有限公司 | Method and system for call hold |
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| 3GPP Organization Partners.Digital cellular telecommunications system(Phase 2+) * |
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| Jonas Martin Thomsen et al.Analysis of GSM Handover using Coloured Petri Nets.《Master’s Thesis》.2003, * |
| Stage2.《3GPP TS 43.318 version 6.0.0 Release 6》.2005, * |
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