CN101730176B - Paging control method, entity and system in network reselection - Google Patents
Paging control method, entity and system in network reselection Download PDFInfo
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- CN101730176B CN101730176B CN 200810172061 CN200810172061A CN101730176B CN 101730176 B CN101730176 B CN 101730176B CN 200810172061 CN200810172061 CN 200810172061 CN 200810172061 A CN200810172061 A CN 200810172061A CN 101730176 B CN101730176 B CN 101730176B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/02—Buffering or recovering information during reselection ; Modification of the traffic flow during hand-off
Abstract
The invention discloses paging control method, entity and system in network reselection, relating to a wireless communication system and solving the problem that the network reselection is generated in an idle state of a mobile terminal and can cause data loss of the mobile terminal in a source network in the prior communication system. In the embodiment of the invention, after the mobile terminal reselects a target network, and a mobility management entity of the target network sends a reselection notice to a mobility management entity of the source network so as to enable the mobility management entity of the source network to indicate a data retransmission entity of the source network to retransmit downlink data of the mobile terminal to a data retransmission entity of the target network, therefore, the mobile terminal can obtain the downlink data in the target network. The embodiment of the invention is mainly used for various wireless communication systems.
Description
Technical field
The present invention relates to wireless communication system, when relating in particular at the terminal occurring network gravity treatment, the paging control method in the network reselection, entity and system.
Background technology
In portable terminal start just or when moving to a new service area, portable terminal can be initiated the process that a network is found, and with the access network as this portable terminal of the current place of portable terminal service area.Because the mobility of portable terminal; Cause the service area at portable terminal place to change; And, when portable terminal changes at service area, need carry out network reselection; Select a new access network, so that after portable terminal place service area changes, still can be linked into network.
Portable terminal under the mobile scene of broadband wireless access, requires portable terminal between different access networks, to move, and requires the portable terminal can network reselection, so that can keep professional continuity in new access network.
In above-mentioned application scenarios; Comprise that moving the network reselection and the portable terminal that produce in the same type access network of portable terminal between the different service areas moves the network reselection that produces between dissimilar access networks, the inventor finds to exist at least in the prior art following problem:
When network reselection takes place in portable terminal under idle condition; Source network has downlink data need send to portable terminal, but this moment, terminal gravity treatment is to objective network; Source network can't paging arrive this portable terminal; Behind one section official hour of paging, these data can be abandoned by source network, cause loss of data.
Summary of the invention
Embodiments of the invention provide paging control method, entity and the system in a kind of network reselection, if portable terminal under idle condition network reselection takes place, avoid source network to exist current needs to send to the loss of data of portable terminal.
For achieving the above object, embodiments of the invention adopt following technical scheme:
Paging control method in a kind of network reselection comprises:
The network reselection notice that receiving target network mobility management entity sends;
If the source network Data Relay Entity exists current needs to send to the downlink data of portable terminal, then indicate the source network Data Relay Entity that said downlink data is transmitted to the objective network Data Relay Entity.
Paging control method in a kind of network reselection comprises:
Send the network reselection notice to the source network Mobility Management Entity;
The network reselection response message that reception sources network mobility management entity sends;
If the source network Data Relay Entity exists current needs to send to the downlink data of portable terminal, then send the bearing resource assignment messages to said portable terminal.
A kind of Mobility Management Entity comprises:
Receiving element is used for the network reselection notice that receiving target network mobility management entity sends;
Control unit is used for when the source network Data Relay Entity exists current needs to send to the downlink data of portable terminal, and indication source network Data Relay Entity is transmitted to the objective network Data Relay Entity with said downlink data.
A kind of Mobility Management Entity comprises:
Transmitting element is used for sending the network reselection notice to the source network Mobility Management Entity;
Receiving element is used for the network reselection response message that reception sources network mobility management entity sends;
Said transmitting element also is used for when the source network Data Relay Entity exists current needs to send to the data of portable terminal, sends the bearing resource assignment messages to said portable terminal.
Paging control system in a kind of network reselection comprises:
The objective network Mobility Management Entity is used for sending the network reselection notice to the source network Mobility Management Entity;
The source network Mobility Management Entity is used for the network reselection notice that receiving target network mobility management entity sends; When the source network Data Relay Entity existed current needs to send to the downlink data of portable terminal, indication source network Data Relay Entity was transmitted to the objective network Data Relay Entity with said downlink data.
Paging control method in the network reselection that the embodiment of the invention provides, entity and system; After portable terminal is accomplished network reselection; Promptly from the source network gravity treatment behind objective network, the objective network Mobility Management Entity sends a gravity treatment notice to the source network Mobility Management Entity.Source MME need judge whether that the source network Data Relay Entity receives the downlink data to this user after receiving this gravity treatment notice.If have, need indication source network Data Relay Entity that the downlink data that current needs send to portable terminal is sent to the objective network Data Relay Entity.When network reselection takes place in portable terminal under idle condition; Even source network is current have downlink data need send to portable terminal and portable terminal also gravity treatment to objective network; Portable terminal still can get access to described downlink data; Because these downlink datas that need send to portable terminal have sent to objective network in the source network in the present embodiment; Like this, portable terminal just can be received said downlink data in gravity treatment in objective network behind objective network, and the assurance data can not lost.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the flow chart of the paging control method carried out by the source network Mobility Management Entity in the embodiment of the invention 1;
Fig. 2 is the flow chart of the paging control method carried out by the objective network Mobility Management Entity in the embodiment of the invention 1;
Fig. 3 is the schematic diagram of source network Mobility Management Entity in the embodiment of the invention 1;
Fig. 4 is the schematic diagram of objective network Mobility Management Entity in the embodiment of the invention 1;
Fig. 5 is the structure chart of paging control system in the embodiment of the invention 1;
Fig. 6 is the flow chart of paging control method in the embodiment of the invention 2;
Fig. 7 is the flow chart of paging control method in the embodiment of the invention 3;
Fig. 8 is the flow chart of paging control method in the embodiment of the invention 4;
Fig. 9 is the flow chart of paging control method in the embodiment of the invention 5;
Figure 10 is the flow chart of paging control method in the embodiment of the invention 6;
Figure 11 is the schematic diagram of source network Mobility Management Entity in the embodiment of the invention 7;
Figure 12 is the schematic diagram of objective network Mobility Management Entity in the embodiment of the invention 7;
The structure chart of paging control system in Figure 13 embodiment of the invention 8.
Embodiment
When portable terminal under idle condition network reselection took place, source network has downlink data need send to portable terminal, but this moment; Terminal gravity treatment is to objective network; Source network can't paging arrive this portable terminal, and behind one section official hour of paging, these data can be abandoned by source network; Cause loss of data, and cause the wasting of resources of source network.
For example: arrive objective network in the portable terminal gravity treatment, and through objective network access network anchor point (as: PDN GW) before, if network anchor point has received the downlink data that sends to portable terminal; Network anchor point can send to the source network buffer memory to the downlink data of receiving, and source network can be initiated the paging to this user; And mobile terminal network gravity treatment this moment is accomplished, and makes source network constantly initiate paging to portable terminal, up to the source network timer expiry; Just stop paging; And abandon the downlink data that current needs send to portable terminal, and source network is constantly initiated paging, also cause the wasting of resources of source network.
For another example: when portable terminal need carry out network reselection, if network anchor point has received the downlink data that sends to portable terminal, network anchor point can send to the source network buffer memory to the downlink data of receiving; And source network can be initiated the paging to this user, though portable terminal has received the paging request of source network; But can not be initiated to the service request process of source network, but continue the network reselection process, at this moment; Portable terminal can not pass through the source network downlink data receiving, makes that source network continues to initiate paging to portable terminal, up to the source network timer expiry; Just stop paging; And abandon the downlink data that current needs send to portable terminal, and source network is constantly initiated paging, also cause the wasting of resources of source network.
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Embodiment 1:
In order to guarantee that the source network data can not lose, under the situation of network by mobile terminal gravity treatment, present embodiment provides the paging control method in a kind of network reselection, and is as shown in Figure 1, and this method comprises the steps:
101, portable terminal from the source network gravity treatment behind objective network; The source network Mobility Management Entity receives network reselection notice from the objective network Mobility Management Entity, and this network reselection notice is used for informing that the said portable terminal of source network Mobility Management Entity accomplished network reselection.
If 102 source network Data Relay Entities exist current needs to send to the downlink data of portable terminal, the source network Mobility Management Entity then indicates the source network Data Relay Entity that said downlink data directly is transmitted to the objective network Data Relay Entity.
The source network Data Relay Entity is that said downlink data directly is transmitted to the objective network Data Relay Entity in the present embodiment, need be through the forwarding of base station.
For the network reselection method that cooperates above-mentioned Fig. 1 to describe, it is a kind of by the paging control method in the network reselection of objective network Mobility Management Entity execution that present embodiment provides, and as shown in Figure 2, this method comprises the steps:
201, portable terminal from the source network gravity treatment behind objective network, the objective network Mobility Management Entity sends the network reselection notice to the source network Mobility Management Entity, has accomplished network reselection with this portable terminal of notification source network mobility management entity.
202, the network reselection response message of objective network Mobility Management Entity reception sources network mobility management entity transmission.
If 203 source network Data Relay Entities exist current needs to send to the downlink data of portable terminal; Then the objective network Mobility Management Entity sends the bearing resource assignment messages to said portable terminal, so that the objective network Data Relay Entity can send to portable terminal with corresponding data through the bearing resource that distributes.
Corresponding to the paging control method in the described network reselection of Fig. 1; Present embodiment also provides a kind of Mobility Management Entity; This Mobility Management Entity is the source network Mobility Management Entity, and is as shown in Figure 3, and said source network Mobility Management Entity comprises: receiving element 31 and control unit 32.
Portable terminal from the source network gravity treatment behind objective network, said source network Mobility Management Entity need be carried out following operation:
Said receiving element 31 is used for the network reselection notice that receiving target network mobility management entity sends, and this network reselection notice is used for informing that the said portable terminal of source network Mobility Management Entity accomplished network reselection; When the source network Data Relay Entity existed current needs to send to the downlink data of portable terminal, said control unit 32 was used to indicate the source network Data Relay Entity that said downlink data is transmitted to the objective network Data Relay Entity.
Corresponding to the paging control method in the described network reselection of Fig. 2; Present embodiment also provides a kind of Mobility Management Entity; This Mobility Management Entity is the objective network Mobility Management Entity; As shown in Figure 4, described objective network Mobility Management Entity comprises: transmitting element 41 and receiving element 42.
Portable terminal from the source network gravity treatment behind objective network, said objective network Mobility Management Entity need be carried out following operation:
Said transmitting element 41 is used for sending the network reselection notice to the source network Mobility Management Entity, is used for informing that the gravity treatment of the said portable terminal of source network Mobility Management Entity is to objective network; Receiving element 42 is used for the network reselection response message that reception sources network mobility management entity sends; When the source network Data Relay Entity exists current needs to send to the downlink data of portable terminal; Said transmitting element 41 also is used for sending the bearing resource assignment messages to said portable terminal, so that the objective network Data Relay Entity can be given portable terminal with corresponding data forwarding through the bearing resource that distributes.
Above-mentioned objective network Mobility Management Entity and source network Mobility Management Entity are applied in the wireless communication system; Can control the paging of portable terminal in network reselection; So; Present embodiment also provides the control system of the paging in a kind of network reselection, and is as shown in Figure 5, and this system comprises: objective network Mobility Management Entity 51 and source network Mobility Management Entity 52.
Wherein, objective network Mobility Management Entity 51 is used for after portable terminal is accomplished network reselection, sends the network reselection notice to source network Mobility Management Entity 52; Source network Mobility Management Entity 52 is used for the network reselection notice that receiving target network mobility management entity 51 sends; When the source network Data Relay Entity existed current needs to send to the downlink data of portable terminal, source network Mobility Management Entity 52 also was used to indicate the source network Data Relay Entity that said downlink data is transmitted to the objective network Data Relay Entity.
Paging control method in the network reselection that present embodiment provides, entity and system; After portable terminal is accomplished network reselection; Promptly from the source network gravity treatment behind objective network, the objective network Mobility Management Entity sends a gravity treatment notice to the source network Mobility Management Entity.The source network Mobility Management Entity needs indication source network Data Relay Entity that the downlink data that current needs send to portable terminal is sent to the objective network Data Relay Entity after receiving this gravity treatment notice.When network reselection takes place in portable terminal under idle condition; Even source network have downlink data need send to portable terminal and portable terminal also gravity treatment to objective network; Portable terminal still can get access to described downlink data, in objective network, backs up because need send to the downlink data of portable terminal in the present embodiment in the source network, like this; Portable terminal still can be received said downlink data in gravity treatment in objective network behind objective network, the assurance data can not lost.
Embodiment 2:
The application scenarios of present embodiment is: portable terminal is (High Rate Packed Data from E-UTRAN (evolved universal terrestrial radio access network) network reselection to HRPD; High-speed data packets) process of network; And portable terminal is in idle condition when carrying out gravity treatment.
As shown in Figure 6; MME in the present embodiment is the Mobility Management Entity in the E-UTRAN network, and S-GW (Serving Gateway, gateway) is the Data Relay Entity in the E-UTRAN network; HRPD AN (AccessNode; Access point) be Mobility Management Entity in the HRPD network, HSGW (HRPD SGW, HRPD gateway) is the Data Relay Entity in the HRPD network.
As shown in Figure 6, the process of the network reselection in the present embodiment comprises the steps:
601, portable terminal is in idle condition in the E-UTRAN network.
602, portable terminal arrives the HRPD network according to current environmental parameter decision gravity treatment; As: not as the signal covering quality of HRPD network, then portable terminal can be according to this environmental parameter decision gravity treatment of signal covering quality to the HRPD network for the signal covering quality of E-UTRAN network.
603, portable terminal is set up request (HRPD ConnectRequest) to the connection that HRPD AN initiates HRPD.
604, after HRPD AN received above-mentioned HRPD connection foundation request, HRPD AN and HSGW carried out Signalling exchange, with the address of setting up the data forwarding passage and the GRE Key information such as (generic route encapsulation keys) of obtaining HSGW.
605, HRPD AN sends network reselection and notifies MME, arrives the HRPD network with notice MME gravity treatment.
606, MME judges in the E-UTRAN network, whether to exist current needs to send to the downlink data of portable terminal; If exist current needs to send to the downlink data of portable terminal, then execution in step 607; If do not exist current needs to send to the downlink data of portable terminal, then execution in step 609.
607, MME sets up data with indication S-GW and HSGW and transmits passage to the foundation request of S-GW transmission data forwarding passage.Owing in the E-UTRAN network, exist current needs to send to the downlink data of portable terminal; So on S-GW, can have the downlink data that sends to said portable terminal; Said downlink data just can directly be forwarded among the HSGW through described data forwarding passage, no longer need carry out transfer through the base station, so as the portable terminal gravity treatment in the HRPD network after; Still can receive the downlink data that forwards in the E-UTRAN network, guarantee that downlink data can not lose.
Simultaneously, in this step, MME stops the paging for portable terminal, so just can avoid MME to carry out paging always, up to timer expiry, and the network resources waste that causes.
When concrete the realization, MME can be transmitted to HSGW with said downlink data to S-GW transmission particular message (like the foundation request of the data forwarding passage in the present embodiment) indication S-GW; Certainly MME can carry special parameter in the message of sending to S-GW, and S-GW is transmitted to HSGW with said downlink data with indication.
608, S-GW sends the foundation response that data are transmitted passage to MME after the foundation of accomplishing the data forwarding passage between S-GW and the HSGW.
Whether 609, MME returns the network reselection response message to HRPD AN, in this response message, can carry Indication message, exist current needs to send to the downlink data of portable terminal in the E-UTRAN network to be illustrated in.Make HRPD AN to learn and whether exist current needs to send to the downlink data of portable terminal in the E-UTRAN network.
In this step, concrete Indication message is: if the judged result in the step 606 is to exist current needs to send to the downlink data of portable terminal, then Indication message is illustrated in and exists current needs to send to the downlink data of portable terminal in the E-UTRAN network; If the judged result in the step 606 is not for to exist current needs to send to the downlink data of portable terminal, then Indication message is illustrated in and does not exist current needs to send to the downlink data of portable terminal in the E-UTRAN network.Generally can adopt binary zero or 1 to distinguish expression.
610, HRPD AN switches to the HRPD network with the data transfer path of said portable terminal, makes portable terminal to obtain downlink data the HRPD network after gravity treatment.
611, HRPD AN judges in the E-UTRAN network, whether to exist current needs to send to the downlink data of portable terminal according to the Indication message in the said network reselection response message; If do not exist current needs to send to the downlink data of portable terminal, direct execution in step 615 in execution in step 612 backs then;
If exist current needs to send to the downlink data of portable terminal, described HRPD AN also needs the connection request of setting up in the determining step 603 whether to comprise whole parameters of allocation of network resources, and the Internet resources in the present embodiment are exactly transmission channel.If comprised described whole parameter; Then carry out the distribution of transmission channel; And execution in step 612,613,614,615; Otherwise need once more to the described whole parameters of mobile terminal request, the situation that does not comprise whole parameters of allocation of network resources is seen the specific descriptions among the embodiment 4, and the above-mentioned connection of the hypothesis request of setting up has comprised described whole parameter in the present embodiment.
For after this step, can carry out under the distribution condition of transmission channel, also direct execution in step 613,614,615, and without execution in step 612.
612, HRPD AN sends connection establishment response to portable terminal.
613, HRPD AN to inform the distribution condition of portable terminal transmission channel, makes portable terminal can utilize the transmission channel of distributing to communicate to the assignment messages of said portable terminal transmission transmission channel.
614, portable terminal returns transmission channel to HRPD AN and has assigned message, and portable terminal just is transformed into state of activation by idle condition like this, so as in the HRPD network downlink data receiving.
615, PDN GW (packet data gateway) initiates the release flow of the access-in resource of said portable terminal in the E-UTRAN network.
In above-mentioned flow process, if portable terminal is accomplished the reception of downlink data, need get back to idle condition once more, said portable terminal can initiatively be initiated the connection release flow of a HRPD network.
In the present embodiment, if portable terminal is in idle condition in the E-UTRAN network, and gravity treatment is in the HRPD network; HRPD AN can send a network reselection notice to MME, and, after MME receives the network reselection notice; Whether will judge earlier at the E-UTRAN network exists current needs to send to the downlink data of portable terminal; If the corresponding downstream data are arranged, then the S-GW in the present embodiment need be forwarded to these downlink datas among the HSGW, so; Even portable terminal gravity treatment is in the HRPD network; And original E-UTRAN network existence this moment need send to the downlink data of portable terminal, and this portable terminal still can receive said downlink data through the HRPD network, thereby has avoided loss of data.And MME also can not reduce the wasting of resources of E-UTRAN network again to portable terminal initiation paging.
In the step 606 of present embodiment,, can also select to carry out after the following steps execution in step 609 again if do not exist current needs to send to the descending of portable terminal:
The foundation request that A1, MME send the data forwarding passage to S-GW is set up data with indication S-GW and HSGW and is transmitted passage.
A2, S-GW send the foundation response that data are transmitted passage to MME after the foundation of accomplishing the data forwarding passage between S-GW and the HSGW.
When concrete the realization, MME can also carry special parameter in the message of sending to S-GW, sets up data with indication S-GW and HSGW and transmits passage.
Through between S-GW and HSGW, setting up the data forwarding passage; Even when MME judges; Do not exist current needs to send to the downlink data of portable terminal in the E-UTRAN network; After this judge to be accomplished and the access-in resource of portable terminal in the E-UTRAN network also do not have under the situation of release, the S-GW in the E-UTRAN network receives the downlink data that need send to portable terminal, S-GW still can directly be transmitted to HSGW with the data forwarding passage that these downlink datas pass through to be set up; So that portable terminal can receive this downlink data through the HRPD network after the gravity treatment, the assurance data can not lost.
Embodiment 3:
The application scenarios of present embodiment is: portable terminal from E-UTRAN (evolved universal terrestrial radio access network) network reselection to HRPD (HighRate Packed Data; High-speed data packets) process of network; And portable terminal is in idle condition when carrying out gravity treatment.
As shown in Figure 7; MME in the present embodiment is the Mobility Management Entity in the E-UTRAN network, and S-GW (Serving Gateway, gateway) is the Data Relay Entity in the E-UTRAN network; HRPD AN (Access Node; Access point) be Mobility Management Entity in the HRPD network, HSGW (HRPD SGW, HRPD gateway) is the Data Relay Entity in the HRPD network.
As shown in Figure 7, the process of the network reselection in the present embodiment comprises the steps:
701, portable terminal is in idle condition in the E-UTRAN network.
702, portable terminal arrives the HRPD network according to current environmental parameter decision gravity treatment; As: not as the signal covering quality of HRPD network, then portable terminal can be according to this environmental parameter decision gravity treatment of signal covering quality to the HRPD network for the signal covering quality of E-UTRAN network.
703, portable terminal sends network reselection indication (Inter-RAT) to HRPD AN.
704, after HRPD AN received above-mentioned network reselection indication, HRPD AN and HSGW carried out Signalling exchange, with the address of setting up the data forwarding passage and the GRE Key information such as (generic route encapsulation keys) of obtaining HSGW.
705, HRPD AN sends network reselection and notifies MME, arrives the HRPD network with notice MME gravity treatment.
706, MME judges in the E-UTRAN network, whether to exist current needs to send to the downlink data of portable terminal; If exist current needs to send to the downlink data of portable terminal, then execution in step 707; If do not exist current needs to send to the downlink data of portable terminal, then execution in step 709.
707, MME sets up data with indication S-GW and HSGW and transmits passage to the foundation request of S-GW transmission data forwarding passage.In the E-UTRAN network, exist current needs to send to the downlink data of portable terminal; Said downlink data can directly be forwarded among the HSGW through described data forwarding passage; No longer need carry out transfer through the base station; So that the portable terminal gravity treatment in the HRPD network after, still can receive the downlink data that the current needs of E-UTRAN network send to portable terminal through the HRPD network, guaranteed that downlink data can not lose.
Simultaneously, in this step, MME stops to initiate paging to described portable terminal, so just can avoid MME to the portable terminal paging up to timer expiry, thereby the network resources waste of minimizing MME.
When concrete the realization, MME can be transmitted to HSGW with said downlink data to S-GW transmission particular message (like the foundation request of the data forwarding passage in the present embodiment) indication S-GW; Certainly MME can carry special parameter in the message of sending to S-GW, and S-GW is transmitted to HSGW with said downlink data with indication.
708, S-GW sends the foundation response that data are transmitted passage to MME after the foundation of accomplishing the data forwarding passage between S-GW and the HSGW.
Whether 709, MME returns the network reselection response message to HRPD AN, in this response message, can carry Indication message, exist current needs to send to the downlink data of portable terminal in the E-UTRAN network to be illustrated in.Make HRPD AN to learn and whether exist current needs to send to the downlink data of portable terminal in the E-UTRAN network.
In this step, concrete Indication message is: if the judged result in the step 706 is to exist current needs to send to the downlink data of portable terminal, then Indication message is illustrated in and exists current needs to send to the downlink data of portable terminal in the E-UTRAN network; If the judged result in the step 706 is not for to exist current paging to said portable terminal, then Indication message is illustrated in and does not exist current needs to send to the downlink data of portable terminal in the E-UTRAN network.Generally can adopt binary zero or 1 to distinguish expression.
710, HRPD AN switches to the HRPD network with the data transfer path of said portable terminal, makes portable terminal to obtain downlink data the HRPD network after gravity treatment.
711, HRPD AN judges in the E-UTRAN network, whether to exist current needs to send to the downlink data of portable terminal according to the Indication message in the said network reselection response message; If do not exist current needs to send to the downlink data of portable terminal, direct execution in step 715 then in execution in step 712 backs;
If exist current needs to send to the downlink data of portable terminal, described HRPD AN also needs the network reselection in the determining step 703 to indicate whether to comprise whole parameters of allocation of network resources, and the Internet resources in the present embodiment are exactly transmission channel.If comprised described whole parameter; Then carry out the distribution of transmission channel; And execution in step 712,713,714,715, otherwise need once more to the described whole parameters of mobile terminal request, the above-mentioned network reselection indication of hypothesis has comprised described whole parameter in the present embodiment.
For after this step, can carry out under the distribution condition of transmission channel, also direct execution in step 713,714,715, and without execution in step 712.
712, HRPD AN sends gravity treatment indication response to portable terminal.
713, HRPD AN to inform the distribution condition of portable terminal transmission channel, makes portable terminal can utilize the transmission channel of distributing to communicate to the assignment messages of said portable terminal transmission transmission channel.
714, portable terminal returns transmission channel to HRPD AN and has assigned message, and portable terminal just is transformed into state of activation by idle condition like this, so as in the HRPD network downlink data receiving.
715, PDN GW (packet data gateway) initiates the release flow of the access-in resource of said portable terminal in the E-UTRAN network.
In above-mentioned flow process, if portable terminal is accomplished the reception of downlink data, need get back to idle condition once more, said portable terminal can initiatively be initiated the connection release flow of a HRPD network.
In the present embodiment, if portable terminal is in idle condition in the E-UTRAN network, and gravity treatment is in the HRPD network; HRPD AN can send a network reselection notice to MME; And MME will judge at the E-UTRAN network whether exist current needs to send to the downlink data of portable terminal earlier after receiving the network reselection notice; If the corresponding downstream data are arranged; Then the S-GW in the present embodiment need be forwarded to these downlink datas among the HSGW, so, even portable terminal gravity treatment exists current needs to send to the downlink data of portable terminal in the HRPD network and in the E-UTRAN network; Portable terminal still can receive original E-UTRAN network through the HRPD network need send to the downlink data of portable terminal, thereby has avoided loss of data.And MME can not reduce the wasting of resources of E-UTRAN network again to the portable terminal paging yet.
If portable terminal sends the network reselection indication to HRPD AN and has carried identification message in the step 703 in the present embodiment; The expression current mobile terminal has received the paging of source network, and HRPD AN can also judge in the E-UTRAN network, whether to exist current needs to send to the downlink data of portable terminal according to said identification message in the step 711 so.
Embodiment 4:
Identical, as shown in Figure 8 among the application scenarios of present embodiment and the embodiment 3, the process of the network reselection in the present embodiment comprises the steps:
801, portable terminal is in idle condition in the E-UTRAN network.
802, portable terminal arrives the HRPD network according to current environmental parameter decision gravity treatment; As: not as the signal covering quality of HRPD network, then portable terminal can be according to this environmental parameter decision gravity treatment of signal covering quality to the HRPD network for the signal covering quality of E-UTRAN network.
803, portable terminal sends network reselection indication (Inter-RAT) to HRPD AN, does not comprise the required whole parameters of allocation of network resources in this gravity treatment indication, for example signal power or the like.
804, after HRPD AN received above-mentioned network reselection indication, HRPD AN and HSGW carried out Signalling exchange, with the address of setting up the data forwarding passage and the GRE Key information such as (generic route encapsulation keys) of obtaining HSGW.
805, HRPD AN sends network reselection and notifies MME, arrives the HRPD network with notice MME gravity treatment.
806, MME judges in the E-UTRAN network, whether to exist current needs to send to the downlink data of portable terminal; If exist current needs to send to the downlink data of portable terminal, then execution in step 807; If do not exist current needs to send to the downlink data of portable terminal, then execution in step 809.
807, MME sets up data with indication S-GW and HSGW and transmits passage to the foundation request of S-GW transmission data forwarding passage.Owing in the E-UTRAN network, exist current needs to send to the downlink data of portable terminal; So on S-GW, can have the downlink data that sends to said portable terminal; Said downlink data just can directly be forwarded among the HSGW through described data forwarding passage; No longer need carry out transfer through the base station; So that portable terminal gravity treatment back and E-UTRAN network in the HRPD network exist current needs to send to the downlink data of portable terminal, portable terminal still can receive said downlink data through the E-UTRAN network, has guaranteed that downlink data can not lose.
Simultaneously, in this step, MME stops to described portable terminal paging, so just can avoid MME to the portable terminal paging up to timer expiry, thereby reduce the network resources waste of MME.
808, S-GW sends the foundation response that data are transmitted passage to MME after the foundation of accomplishing the data forwarding passage between S-GW and the HSGW.
Whether 809, MME returns the network reselection response message to HRPDAN, in this response message, can carry Indication message, exist current needs to send to the downlink data of portable terminal in the E-UTRAN network to be illustrated in.Make HRPD AN to learn and whether exist current needs to send to the downlink data of portable terminal in the E-UTRAN network.
In this step, concrete Indication message implementation is for can adopt identical scheme among embodiment 2 or the embodiment 3.
810, HRPD AN switches to the HRPD network with the data transfer path of said portable terminal, makes portable terminal to obtain downlink data the HRPD network after gravity treatment.
811, HRPD AN judges in the E-UTRAN network, whether to exist current needs to send to the downlink data of portable terminal according to the Indication message in the said network reselection response message; If do not exist current needs to send to the downlink data of portable terminal, direct execution in step 816 then in execution in step 812 backs;
If exist current needs to send to the downlink data of portable terminal, described HRPD AN also needs the network reselection in the determining step 803 to indicate whether to comprise whole parameters of allocation of network resources, and the Internet resources in the present embodiment are exactly transmission channel.Owing to do not comprise whole parameters, execution in step 812,813,814,815 and 816 in the indication of the network reselection in this enforcement.
812, HRPD AN sends gravity treatment indication response to portable terminal, has comprised in this response to activate and has indicated, with to the whole parameters of said mobile terminal request.
813, portable terminal sends to HRPD AN and connects the request of foundation, and carries whole parameters of allocation of network resources in this request.
814, HRPD AN carries out the distribution of transmission channel; The transmission channel here is exactly Internet resources; And HRPD AN sends the assignment messages of transmission channel to said portable terminal; To inform the distribution condition of portable terminal transmission channel, make portable terminal can utilize the transmission channel of distributing to communicate.
815, portable terminal returns transmission channel to HRPD AN and has assigned message, and portable terminal just is transformed into state of activation by idle condition like this, so as in the HRPD network downlink data receiving.
816, PDN GW (packet data gateway) initiates the release flow of the access-in resource of said portable terminal in the E-UTRAN network.
In above-mentioned flow process, if portable terminal is accomplished the reception of downlink data, need get back to idle condition once more, said portable terminal can initiatively be initiated the connection release flow of a HRPD network.
In the present embodiment, if portable terminal is in idle condition in the E-UTRAN network, and gravity treatment is in the HRPD network; HRPD AN can send a network reselection notice to MME, and, after MME receives the network reselection notice; Will judge at the E-UTRAN network whether exist current needs to send to the downlink data of portable terminal earlier, if the corresponding downstream data are arranged, then the S-GW in the present embodiment need be forwarded to these downlink datas among the HSGW; So; Even portable terminal gravity treatment is in the HRPD network and have said downlink data, still can receives said downlink data, thereby avoid loss of data through the HRPD network.And MME can not reduce the wasting of resources of E-UTRAN network again to the portable terminal paging yet.
Embodiment 5:
The application scenarios of present embodiment is that portable terminal carries out network reselection between the different service areas in the 3GPP network; Portable terminal is in idle condition when carrying out gravity treatment; Variation has taken place in this tracing area that is equivalent to portable terminal; Need carry out tracking area update, and in the present embodiment just gravity treatment MME and do not have gravity treatment S-GW.
As shown in Figure 9, the process of the network reselection in the present embodiment comprises the steps:
901, portable terminal is in idle condition in source network.
902, portable terminal arrives objective network according to current environmental parameter decision gravity treatment.
903, portable terminal sends the tracking area update request message to the target MME of objective network.
904, target MME confirms that source network Serving GW can continue as portable terminal service is provided, and target MME sends the network reselection notification message to source MME, has accomplished network reselection with the said portable terminal of notification source MME.
905, source MME judges in source network, whether to exist current needs to send to the downlink data of portable terminal; If exist current needs to send to the downlink data of portable terminal, then execution in step 906; If do not exist current needs to send to the downlink data of portable terminal, then execution in step 907.
906, source MME stops to the portable terminal paging, so just can avoid the said portable terminal of MMW paging in source network up to timer expiry, thereby reduces the wasting of resources of source network.
907, source MME sends Indication message to S-GW, so that indication S-GW need not send downlink data to the base station of source network, but the described downlink data of buffer memory.
908, S-GW returns the response message of said Indication message to source MME.
909, source MME returns the network reselection response message to said target MME, and in response message, carries indication information, with notification target MME at the current downlink data that need send to portable terminal that whether exists of source network.
910, target MME control portable terminal is at the objective network loading establishing process.
911, the indication information in the target MME determining step 909 is represented that source network is current and whether is had the downlink data that need send to this portable terminal, if the current existence of source network need send to the downlink data of this portable terminal, then execution in step 913; Otherwise execution in step 912.
912, target MME responds to said portable terminal returning tracking area update.
913, target MME initiates the flow process of setting up of radio bearer, the radio bearer resources that configuration needs.
In the present embodiment, if portable terminal is in idle condition in source network, and gravity treatment is in objective network; Target MME can send a network reselection notice to source MME; And source MME will judge at source network whether exist current needs to send to the downlink data of portable terminal earlier after receiving the network reselection notice; If the corresponding downstream data are arranged; Then the objective network in the present embodiment need carry out the foundation of radio bearer, so that portable terminal receives downlink data in objective network, has guaranteed that data can not lose.
Embodiment 6:
The application scenarios of present embodiment is that portable terminal carries out network reselection between the different service areas in the 3GPP network; Portable terminal is in idle condition when carrying out gravity treatment; Variation has taken place in this tracing area that is equivalent to portable terminal; Need carry out tracking area update, and in the present embodiment gravity treatment simultaneously MME and S-GW.
Shown in figure 10, the process of the network reselection in the present embodiment comprises the steps:
1001, portable terminal is in idle condition in source network.
1002, portable terminal arrives objective network according to current environmental parameter decision gravity treatment.
1003, portable terminal sends the tracking area update request message to the target MME of objective network.
1004, target MME confirms to need to select new Serving GW (target S-GW) for portable terminal service to be provided; So; In this step; Target MME sends to carry to target S-GW and sets up request message, so that be configured into the parameter that data transfer needs, as: the address and the tunnel ID that obtain target S-GW.
1005, target S-GW returns to carry to target MME and sets up response message.
1006, target MME sends the network reselection notification message to source MME, has accomplished network reselection with the said portable terminal of notification source MME.Can carry the configuration information that carries out transfer of data in this gravity treatment notice.
1007, source MME judges in source network, whether to exist current needs to send to the downlink data of portable terminal; If exist current needs to send to the downlink data of portable terminal, then execution in step 1008; If do not exist current needs to send to the downlink data of portable terminal, then execution in step 1010.In this step, if do not exist current needs to send to the downlink data of portable terminal in the source network, also can execution in step 1008 and 1009 after execution in step 1010 again.
1008, source MME sets up data with indication source S-GW and target S-GW and transmits passage to the foundation request of source S-GW transmission data forwarding passage.Owing in source network, exist current needs to send to the downlink data of portable terminal; So on the S-GW of source, can have the downlink data that sends to said portable terminal; Said downlink data just can directly be forwarded among the target S-GW through described data forwarding passage; No longer need carry out transfer through the base station; So that the portable terminal gravity treatment in the objective network after, still can receive the downlink data that current needs in the source network send to portable terminal through objective network, guarantee that downlink data can not lose.
Simultaneously, in this step, source MME stops to initiate paging to described portable terminal, so just can avoid source MME to the portable terminal paging up to timer expiry, thereby the network resources waste of minimizing source MME.
1009, source S-GW sends the foundation response that data are transmitted passage to source MME after the foundation of accomplishing the data forwarding passage between source S-GW and the target S-GW.
Whether 1010, source MME returns the network reselection response message to target MME, in this response message, can carry Indication message, exist current needs to send to the downlink data of portable terminal in the source network to be illustrated in.Make target MME to learn and whether exist current needs to send to the downlink data of portable terminal in the source network.
1011, target MME switches to objective network with the data transfer path of said portable terminal, makes portable terminal to obtain downlink data the network after gravity treatment.
1012, target MME judges in source network, whether to exist current needs to send to the downlink data of portable terminal according to the Indication message in the said network reselection response message; If do not exist current needs to send to the downlink data of portable terminal; Then execution in step 1013; If exist current needs to send to the downlink data of portable terminal, then execution in step 1014.
1013, target MME transmission tracking area update responds to portable terminal, accomplishes whole tracking area update flow process.
1014, target MME initiates the flow process of setting up of radio bearer, the radio bearer resources that configuration needs.
In the present embodiment, if portable terminal is in idle condition in source network, and gravity treatment is in objective network; Target MME can send a network reselection notice to source MME; And source MME will judge at source network whether exist current needs to send to the downlink data of portable terminal earlier after receiving the network reselection notice; If the corresponding downstream data are arranged; Then the objective network in the present embodiment need carry out the foundation of radio bearer, so that portable terminal receives the downlink data that the current needs of source network send to portable terminal in objective network, has guaranteed that downlink data can not lose.And source MME can not reduce the wasting of resources of source network again to the portable terminal paging yet.
Embodiment 7:
Present embodiment provides a kind of Mobility Management Entity; This Mobility Management Entity is the source network Mobility Management Entity; Shown in figure 11, described source network Mobility Management Entity comprises: receiving element 111, judging unit 112, control unit 113 and transmitting element 114.
Portable terminal from the source network gravity treatment behind objective network, said source network Mobility Management Entity need be carried out following operation:
Said receiving element 111 is used for the network reselection notice that receiving target network mobility management entity sends, and this network reselection notice is used for informing that the said portable terminal of source network Mobility Management Entity accomplished network reselection; After learning that portable terminal is accomplished network reselection, said judging unit 112 is used to judge whether the source network Data Relay Entity exists current needs to send to the downlink data of portable terminal; When the source network Data Relay Entity exists current needs to send to the downlink data of portable terminal; Said control unit 113 is used for Controlling Source MME to be stopped to said portable terminal paging, and said control unit 113 also is used to indicate the source network Data Relay Entity that said downlink data is transmitted to the objective network Data Relay Entity.
When the source network Data Relay Entity did not exist current needs to send to the downlink data of portable terminal, said control unit 113 was used to indicate source network Data Relay Entity and objective network Data Relay Entity to set up the data forwarding passage.
Said transmitting element 114 is used for sending the network reselection response message to the objective network Mobility Management Entity, and the indication information in this response message representes whether the source network Data Relay Entity exists current needs to send to the downlink data of portable terminal.
Present embodiment also provides a kind of Mobility Management Entity; This Mobility Management Entity is the objective network Mobility Management Entity; Shown in figure 12, described objective network Mobility Management Entity comprises: transmitting element 121, receiving element 122, first judging unit 123 and second judging unit 124.
Portable terminal from the source network gravity treatment behind objective network, said target MME need carry out following operation:
Said transmitting element 121 is used for sending the network reselection notice to the source network Mobility Management Entity, is used for informing that the said portable terminal of source network Mobility Management Entity accomplished network reselection; Receiving element 122 is used for the network reselection response message that reception sources network mobility management entity sends; Said first judging unit 123 is used to judge whether the source network Data Relay Entity exists current needs to send to the downlink data of portable terminal; When the source network Data Relay Entity exists current needs to send to the downlink data of portable terminal; Said transmitting element 121 also is used for sending the bearing resource assignment messages to said portable terminal, so that the objective network Data Relay Entity can be given portable terminal with corresponding data forwarding through the bearing resource that distributes.
Said receiving element 122 also is used to receive the connection foundation request that said portable terminal sends; Second judging unit 124 is used for when the source network Data Relay Entity exists current needs to send to the downlink data of portable terminal, and judges said connection sets up whether carried the whole parameters that connect and need in the request;
Do not carry when connecting the whole parameter that needs in the request of connect setting up, said transmitting element 121 also is used for sending connection establishment response to said portable terminal, and in this response, comprises the activation of asking said whole parameters and indicate; Said receiving element 122 also is used to receive the connection foundation request that carries said whole parameters that said portable terminal sends.
Embodiment 8:
With in the foregoing description 7 objective network Mobility Management Entity and source network Mobility Management Entity be applied in the wireless communication system; Can control the paging of portable terminal in network reselection; So; Present embodiment also provides the control system of the paging in a kind of network reselection, and is shown in figure 13, and this system comprises: objective network Mobility Management Entity 131 and source network Mobility Management Entity 132.
Wherein, objective network Mobility Management Entity 131 is used for after portable terminal is accomplished network reselection, sends the network reselection notice to source network Mobility Management Entity 132; Source network Mobility Management Entity 132 is used for the network reselection notice that receiving target network mobility management entity 131 sends; And source network Mobility Management Entity 132 is used to also judge whether the source network Data Relay Entity exists current needs to send to the downlink data of portable terminal; When the source network Data Relay Entity exists current needs to send to the downlink data of portable terminal; Source network Mobility Management Entity 132 stops to initiate paging to said portable terminal, and indication source network Data Relay Entity is transmitted to the objective network Data Relay Entity with said downlink data.
Said objective network Mobility Management Entity 131 is used to also judge whether the source network Data Relay Entity exists current needs to send to the downlink data of portable terminal; And when the source network Data Relay Entity exists current needs to send to the downlink data of portable terminal, send the bearing resource assignment messages to said portable terminal.
Present embodiment mainly is used in the various wireless communication systems, carries out paging control, for example: networks such as WIMAX, CDMA2000EV-D0, IWLAN, GSM.
Through the description of above execution mode, the those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential common hardware, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding; The part that technical scheme of the present invention contributes to prior art in essence in other words can be come out with the embodied of software product, and this computer software product is stored in the storage medium that can read, like the floppy disk of computer; Hard disk or CD etc.; Comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; Can expect easily changing or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by said protection range with claim.
Claims (22)
1. the paging control method behind the network reselection is characterized in that, comprising:
After the network by mobile terminal gravity treatment, the network reselection notice that source network Mobility Management Entity receiving target network mobility management entity sends, said network reselection notice are used to inform that source network Mobility Management Entity portable terminal accomplished network reselection;
If the source network Data Relay Entity exists current needs to send to the downlink data of portable terminal, then source network Mobility Management Entity indication source network Data Relay Entity is transmitted to the objective network Data Relay Entity with said downlink data.
2. the paging control method behind the network reselection according to claim 1; It is characterized in that said indication source network Data Relay Entity is transmitted to the objective network Data Relay Entity with said downlink data and comprises: stop to initiate paging and indicating the source network Data Relay Entity that said downlink data is transmitted to the objective network Data Relay Entity to portable terminal.
3. the paging control method behind the network reselection according to claim 1 is characterized in that, before indication source network Data Relay Entity was transmitted to the objective network Data Relay Entity with said downlink data, this method also comprised:
Judge whether the source network Data Relay Entity exists current needs to send to the downlink data of portable terminal.
4. the paging control method behind the network reselection according to claim 1 is characterized in that, this method also comprises:
If the source network Data Relay Entity does not exist current needs to send to the downlink data of portable terminal, then indicate source network Data Relay Entity and objective network Data Relay Entity to set up the data forwarding passage.
5. the paging control method behind the network reselection according to claim 1 is characterized in that, said indication source network Data Relay Entity is transmitted to the objective network Data Relay Entity with said downlink data and comprises:
Indication source network Data Relay Entity and objective network Data Relay Entity are set up the data forwarding passage, and indication source network Data Relay Entity directly sends to the objective network Data Relay Entity through the data forwarding passage of setting up with said downlink data.
6. according to the paging control method behind any described network reselection in the claim 1 to 5, it is characterized in that this method also comprises:
The source network Mobility Management Entity sends the network reselection response message to the objective network Mobility Management Entity, and the indication information in this response message representes whether the source network Data Relay Entity exists current needs to send to the downlink data of portable terminal.
7. the paging control method behind the network reselection according to claim 1 is characterized in that, through the special parameter indication source network Data Relay Entity that sends in particular message or the message said downlink data is transmitted to the objective network Data Relay Entity.
8. the paging control method behind the network reselection according to claim 4 is characterized in that, sets up the data forwarding passage through the special parameter indication source network Data Relay Entity and the objective network Data Relay Entity that send in particular message or the message.
9. the paging control method behind the network reselection is characterized in that, comprising:
After the network by mobile terminal gravity treatment, the objective network Mobility Management Entity sends the network reselection notice to the source network Mobility Management Entity, and said network reselection notice is used to inform that said source network Mobility Management Entity portable terminal accomplished network reselection;
The network reselection response message that objective network Mobility Management Entity reception sources network mobility management entity sends;
If the source network Data Relay Entity exists current needs to send to the downlink data of portable terminal, then the objective network Mobility Management Entity sends the bearing resource assignment messages to said portable terminal.
10. the paging control method behind the network reselection according to claim 9; It is characterized in that; After the network reselection response message that said reception sources network mobility management entity sends, before said portable terminal sends the bearing resource assignment messages, this method also comprises:
Judge whether the source network Data Relay Entity exists current needs to send to the downlink data of portable terminal.
11. the paging control method behind the network reselection according to claim 9; It is characterized in that; Comprise indication information in the said network reselection response message, this indication information representes whether the source network Data Relay Entity exists current needs to send to the downlink data of portable terminal.
12. the paging control method behind the network reselection according to claim 9; It is characterized in that; After the source network Mobility Management Entity sends the network reselection notice, before the network reselection response message that sends of reception sources network mobility management entity, this method also comprises said:
Receive the connection foundation request that said portable terminal sends;
If the source network Data Relay Entity exists current needs to send to the downlink data of said portable terminal, then before sending the bearing resource assignment messages to said portable terminal, this method also comprises:
Judge said connection sets up whether carried the whole parameters that connect and need in the request;
Do not carry the whole parameters that connect and need if connect the request of foundation, send connection establishment response, and in this response, comprise the activation indication of asking said whole parameters to said portable terminal;
Receive the connection foundation request that carries said whole parameters that said portable terminal sends.
13. the paging control method behind the network reselection according to claim 12 is characterized in that,
Indication information in the said network reselection response message representes whether the source network Data Relay Entity exists current needs to send to the downlink data of portable terminal; And the indication information that the connection that said portable terminal sends is set up in the request representes whether the source network Data Relay Entity exists current needs to send to the downlink data of portable terminal.
14. a Mobility Management Entity is characterized in that, comprising:
Receiving element is used for after the network by mobile terminal gravity treatment, and the network reselection notice that receiving target network mobility management entity sends, said network reselection notice are used to inform that source network Mobility Management Entity portable terminal accomplished network reselection;
Judging unit is used to judge whether the source network Data Relay Entity exists current needs to send to the downlink data of portable terminal;
Control unit is used for when the source network Data Relay Entity exists current needs to send to the downlink data of portable terminal, and indication source network Data Relay Entity is transmitted to the objective network Data Relay Entity with said downlink data.
15. Mobility Management Entity according to claim 14; It is characterized in that; Said control unit also is used for when the source network Data Relay Entity exists current needs to send to the downlink data of portable terminal, controls this Mobility Management Entity and stops to initiate paging to said portable terminal.
16. Mobility Management Entity according to claim 14; It is characterized in that; Said control unit also is used at the source network Data Relay Entity when not existing current needs to send to the downlink data of portable terminal, and indication source network Data Relay Entity and objective network Data Relay Entity are set up the data forwarding passage.
17. according to any described Mobility Management Entity in the claim 14 to 16, it is characterized in that, also comprise:
Transmitting element is used for sending the network reselection response message to the objective network Mobility Management Entity, and the indication information in this response message representes whether the source network Data Relay Entity exists current needs to send to the downlink data of portable terminal.
18. a Mobility Management Entity is characterized in that, comprising:
Transmitting element is used for after the network by mobile terminal gravity treatment, sends the network reselection notice to the source network Mobility Management Entity, and said network reselection notice is used to inform that said source network Mobility Management Entity portable terminal accomplished network reselection;
Receiving element is used for the network reselection response message that reception sources network mobility management entity sends;
First judging unit is used to judge whether the source network Data Relay Entity exists current needs to send to the downlink data of portable terminal;
Said transmitting element also is used for when the source network Data Relay Entity exists current needs to send to the data of portable terminal, sends the bearing resource assignment messages to said portable terminal.
19. Mobility Management Entity according to claim 18 is characterized in that, said receiving element also is used to receive the connection foundation request that said portable terminal sends;
This Mobility Management Entity also comprises:
Second judging unit is used for when the source network Data Relay Entity exists current needs to send to the downlink data of portable terminal, judges said connection sets up whether carried the whole parameters that connect and need in the request;
Said transmitting element also is used for sending connection establishment response connecting whole parameters that the needs that connect are not carried in the request of foundation to said portable terminal, and in this response, comprises the activation indication of asking said whole parameters;
Said receiving element also is used to receive the connection foundation request that carries said whole parameters that said portable terminal sends.
20. the paging control system behind the network reselection is characterized in that, comprising:
The objective network Mobility Management Entity; Be used for after the network by mobile terminal gravity treatment; Send the network reselection notice to the source network Mobility Management Entity, said network reselection notice is used to inform that said source network Mobility Management Entity portable terminal accomplished network reselection;
The source network Mobility Management Entity is used for after the network by mobile terminal gravity treatment, the network reselection notice that receiving target network mobility management entity sends; When the source network Data Relay Entity existed current needs to send to the downlink data of portable terminal, indication source network Data Relay Entity was transmitted to the objective network Data Relay Entity with said downlink data.
21. the paging control system behind the network reselection according to claim 20; It is characterized in that; When said source network Mobility Management Entity exists current needs to send to the downlink data of portable terminal at the source network Data Relay Entity, stop to initiate paging to said portable terminal.
22. the paging control system behind the network reselection according to claim 20; It is characterized in that; Said objective network Mobility Management Entity also is used for when the source network Data Relay Entity exists current needs to send to the downlink data of portable terminal, sends the bearing resource assignment messages to said portable terminal.
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| CN 200810172061 CN101730176B (en) | 2008-10-28 | 2008-10-28 | Paging control method, entity and system in network reselection |
| PCT/CN2009/074156 WO2010048843A1 (en) | 2008-10-28 | 2009-09-23 | Method, management entity and system for paging control in network reselection |
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| CN 200810172061 CN101730176B (en) | 2008-10-28 | 2008-10-28 | Paging control method, entity and system in network reselection |
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| WO2014058242A1 (en) * | 2012-10-10 | 2014-04-17 | 엘지전자 주식회사 | Method for processing paging and method for relaying downlink data |
| CN107241369B (en) | 2016-03-28 | 2020-06-16 | 电信科学技术研究院 | Data transmission method and device and session management function entity equipment |
| CN108307533A (en) * | 2016-08-23 | 2018-07-20 | 中兴通讯股份有限公司 | A kind of data forwarding method and device |
| EP3534643B1 (en) * | 2016-11-21 | 2021-07-28 | Huawei Technologies Co., Ltd. | Method and terminal device for switching network format |
| CN112153647B (en) * | 2019-06-29 | 2022-04-22 | 华为技术有限公司 | Communication method and related equipment |
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| CN1679354A (en) * | 2002-08-29 | 2005-10-05 | 摩托罗拉公司 | Method and apparatus for cell reselection within a communications system |
| CN101005692A (en) * | 2006-01-20 | 2007-07-25 | 北京三星通信技术研究有限公司 | Method for reducing terminal switch between LTE and 3G cut-in technology |
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