CN101959173B - Data transmission method, communication system and related equipment - Google Patents
Data transmission method, communication system and related equipment Download PDFInfo
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- CN101959173B CN101959173B CN 200910159151 CN200910159151A CN101959173B CN 101959173 B CN101959173 B CN 101959173B CN 200910159151 CN200910159151 CN 200910159151 CN 200910159151 A CN200910159151 A CN 200910159151A CN 101959173 B CN101959173 B CN 101959173B
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Abstract
The embodiment of the invention discloses a data transmission method, a communication system and related equipment which are used for guaranteeing the reliability of the pre-registration process. The data transmission method comprises that: a mobile management entity MME receives an uplink tunnel message transmitted by an evolution base station, wherein the uplink tunnel message comprises high-speed grouping data HRPD message generated by user equipment UE; and if the MME determines that virtual connection between the UE and a first evolution access network is started according to the uplink tunnel message, the HRPD message in the uplink tunnel message is forwarded to the first evolution access network, wherein the first evolution access network is an opposite-end evolution access networkin a current tunnel corresponding to the UE. The embodiment of the invention also provides a communication system and related equipment. The embodiment of the invention can effectively guarantee the reliability of the pre-registration process.
Description
Technical field
The present invention relates to communication field, relate in particular to a kind of data transmission method and communication system and relevant device.
Background technology
Development along with network technology, subscriber equipment tends to switch between different networks, for example switch between Long Term Evolution (LTE, Long Term Evolution) network and High Rate Packet Data (HRPD, HighRate Packet Data) network.
If the dual-mode user device of LTE/HRPD is the dual-mode user device of single-emission and double-receiving.In this case, when subscriber equipment on a network when transceiving data, it can not carry out the work of registration, authentication or session negotiation simultaneously on the another one network, so when causing the subscriber equipment across a network to switch, must first register, the work such as authentication or session negotiation.These processes need several seconds usually, cause transfer of data to interrupt, and have greatly affected the quality of service of real time business in handoff procedure.
The time-delay of switching in order to reduce real time business, the concept of " pre-registration " is suggested, namely when subscriber equipment still also at source network the time, subscriber equipment is transceiving data on one side, by between source network and network S101 interface and objective network carry out the work such as registration, authentication or session negotiation on one side.
When subscriber equipment really carries out the inter-network switching, subscriber equipment is by source network and span into the technology tunnel and will switch message and issue objective network, after obtaining the resource allocation information of objective network, can switch on the Radio Link of objective network, beginning is at the objective network transceiving data, therefore at utmost reduced inter-network service switchover break period.
Data transmission method in prior art under a kind of pre-registration pattern is:
1, subscriber equipment (UE, User Equipment) is current registers in the first evolution base station (eNB, evolvedNode B)/mobile management entity (MME, Mobility Management Entity) network;
2, when satisfying certain radio condition, UE initiates the pre-registration process to target evolution Access Network (eAN, evolved AccessNetwork);
3, UE by an eNB, creates virtual link between S101 tunnel and an eAN between MME and network;
4, after virtual link is opened, carry out the HRPD interacting message between UE and an eAN;
5, UE moves to the 2nd eNB from an eNB, and the area identification of an eNB static configuration (SectorID) belongs to an eAN, and the sector ID of the 2nd eNB static configuration belongs to the 2nd eAN;
6, UE sends HRPD message by the 2nd eNB, and MME is forwarded to the 2nd eAN according to its sector ID with HRPD message after receiving the HRPD message of the 2nd eNB transmission.
But, in above-mentioned technical scheme, UE carries out pre-registration in an eNB, virtual link is opened, when UE moves to the 2nd eNB from an eNB, the HRPD session of UE still is kept in an eAN corresponding to an eNB, so after MME is sent to the 2nd eAN with HRPD message, do not preserve the HRPD session in the 2nd eAN, and can't create go forward side by side guild words of HRPD session with UE and safeguard, therefore can cause the session negotiation failure, thereby cause the pre-registration procedure failure.
Summary of the invention
The embodiment of the present invention provides a kind of data transmission method and communication system and relevant device, can guarantee the reliability of pre-registration process.
The data transmission method that the embodiment of the present invention provides comprises: mobile management entity MME receives the up link tunnel message that evolution base station sends, and comprises the High Rate Packet Data HRPD message that user equipment (UE) generates in described up link tunnel message; If MME determines the virtual link unlatching between described UE and the first evolution Access Network or determines that according to described up link tunnel message needs mail to the first evolution Access Network with described HRPD message according to described up link tunnel message, the HRPD message in described up link tunnel message being forwarded to described the first evolution Access Network; The opposite end evolution Access Network in the tunnel that described the first evolution Access Network is the current correspondence of described UE.
The communication system that the embodiment of the present invention provides comprises: evolution base station, be used for sending the up link tunnel message, and comprise the HRPD message that UE generates in described up link tunnel message; MME, be used for receiving the up link tunnel message that described evolution base station sends, if determine the virtual link unlatching between described UE and the first evolution Access Network or determine that according to described up link tunnel message needs mail to the first evolution Access Network with described HRPD message according to described up link tunnel message, the HRPD message in described up link tunnel message being forwarded to described the first evolution Access Network; The first evolution Access Network is used for receiving the HRPD message that described MME sends; The opposite end evolution Access Network in the tunnel that described the first evolution Access Network is the current correspondence of described UE.
The mobile management entity that the embodiment of the present invention provides comprises: receiving element, be used for receiving the up link tunnel message that evolution base station sends, and comprise the HRPD message that UE generates in described up link tunnel message; Judging unit, be used for judging according to described up link tunnel message whether the virtual link between described UE and the first evolution Access Network is opened or determine whether that according to described up link tunnel message needs mail to the first evolution Access Network with described HRPD message, the opposite end evolution Access Network in the tunnel that described the first evolution Access Network is the current correspondence of described UE; Transmitting element, the virtual link that is used between described UE and the first evolution Access Network is opened, or when determining described HRPD message need to be mail to the first evolution Access Network, the HRPD message in described up link tunnel message is forwarded to described the first evolution Access Network.
The evolution base station that the embodiment of the present invention provides, comprise: the second receiving element, be used for receiving the UL information transfer message that UE sends, carry HRPD message and forwarding indication that UE generates in described UL information transfer message, whether described forwarding indication is used to indicate described virtual link and opens, or indication MME is sent to the first evolution Access Network or the second evolution Access Network with described HRPD message; Message generation unit is used for the HRPD message of described UL information transfer message is carried in the message body of up link tunnel message, and described forwarding indication is carried in the message header of up link tunnel message; The second transmitting element is used for sending described up link tunnel message to MME.
The subscriber equipment that the embodiment of the present invention provides comprises: acquiring unit is used for generating HRPD message, and obtains the state of current virtual link; The indication generation unit, generate corresponding forwarding indication according to the state of described virtual link, whether described forwarding indication is used to indicate described virtual link and opens, or indication MME is sent to the first evolution Access Network or the second evolution Access Network with described HRPD message; The second message generation unit for described HRPD message being carried at the message body of UL information transfer message, is carried at described forwarding indication in the message header of UL information transfer message; The 3rd transmitting element is used for sending described UL information transfer message to evolution base station.
As can be seen from the above technical solutions, the embodiment of the present invention has the following advantages:
In the embodiment of the present invention, the up link tunnel message that sends according to evolution base station as MME is determined the virtual link unlatching between UE and the first evolution Access Network, or when determining HRPD message need to be mail to the first evolution Access Network, the HRPD message that UE sends can be sent to this first evolution Access Network, the opposite end evolution Access Network in the tunnel that this first evolution Access Network is the current correspondence of UE, so this first evolution Access Network is preserved the HRPD session, therefore the process of pre-registration can be proceeded, thereby the reliability of pre-registration process can be guaranteed.
Description of drawings
Fig. 1 is embodiment schematic diagram of data transmission method in the embodiment of the present invention;
Fig. 2 is another embodiment schematic diagram of data transmission method in the embodiment of the present invention;
Fig. 3 is a data transmission method embodiment schematic diagram again in the embodiment of the present invention;
Fig. 4 is embodiment schematic diagram of communication system in the embodiment of the present invention;
Fig. 5 is another embodiment schematic diagram of communication system in the embodiment of the present invention;
Fig. 6 is mobile management entity embodiment schematic diagram in the embodiment of the present invention;
Fig. 7 is evolution base station embodiment schematic diagram in the embodiment of the present invention;
Fig. 8 is subscriber equipment embodiment schematic diagram in the embodiment of the present invention.
Embodiment
The embodiment of the present invention provides a kind of data transmission method and communication system and relevant device, can guarantee the reliability of pre-registration process.
See also 1, embodiment of the data transmission method in the embodiment of the present invention comprises:
101, MME receives the up link tunnel message that evolution base station sends;
In the present embodiment, as UE after MME registration, or when carrying out data session, UE can initiate the pre-registration flow process, pre-registration is carried out in request in objective network, UE can send up HRPD message to MME by evolution base station, and MME can receive the up link tunnel message from evolution base station, comprises the HRPD message that UE generates in this up link tunnel message.
If 102 MME determine that according to the up link tunnel message virtual link between UE and the first evolution Access Network opens, or determine HRPD message to be mail to the first evolution Access Network, the HRPD message in the up link tunnel message is forwarded to the first evolution Access Network.
MME is after evolution base station receives the up link tunnel message, can judge whether the virtual link between UE and the first evolution Access Network is opened according to this up link tunnel message, if open, the HRPD message in this up link tunnel message is forwarded to the first evolution Access Network, concrete judgment mode will be described in detail in subsequent embodiment.
Need to prove, in the present embodiment, MME can not judge also whether virtual link is opened, and directly reads the indication of carrying in the up link tunnel message, and whether this indication is directly used in indication MME needs HRPD message is forwarded to the first evolution Access Network.
In the present embodiment, the first evolution Access Network refers to the opposite end evolution Access Network in the tunnel of the current correspondence of UE, and this tunnel can be the S101 tunnel in actual applications.
S101 in the present embodiment refers to internetwork interface, it is the interface between MME and evolution Access Network in the present embodiment, this S101 interface is in fact a tunnel, be used for forwarding the signaling message between subscriber equipment and objective network, assisting user equipment carries out pre-registration at objective network, or switches to objective network from source network, and this S101 tunnel is those skilled in the art's common practise, only be briefly described herein, be not described in detail.
In the embodiment of the present invention, the up link tunnel message that sends according to evolution base station as MME is determined the virtual link unlatching between UE and the first evolution Access Network, or when determining HRPD message need to be mail to the first evolution Access Network, the HRPD message that UE sends can be sent to this first evolution Access Network, the opposite end evolution Access Network in this first evolution Access Network is the current correspondence of UE S101 tunnel, so this first evolution Access Network is preserved the HRPD session, therefore the process of pre-registration can be proceeded, thereby the reliability of pre-registration process can be guaranteed.
For ease of understanding, the below is described the data transmission method in the embodiment of the present invention with an instantiation, sees also Fig. 2, and in the embodiment of the present invention, another embodiment of data transmission method comprises:
201, UE generates HRPD message, and obtains the state of current virtual link;
When the HRPD of UE module need to send up HRPD message to the evolution Access Network, the HRPD module mails to LTE module in UE with up HRPD message, the HRPD module is determined the state that current virtual link is opened or closed simultaneously, and this state is informed the LTE module equally, specifically can adopt a shared public variable or other internal communication mechanism that this state is informed the LTE module.
After the LTE module of UE is received the up HRPD message that the HRPD module sends, can be according to this HRPD message generation UL information transfer message.
Need to prove, the state that current virtual link in the present embodiment is opened or closed can adopt multiple carrying mode, for example can generate independent forwarding indication, this forwarding indication is used to indicate the state that current virtual link is opened or closed, the LTE module can be carried on up HRPD message in the message body of UL information transfer message, and this forwarding indication is carried in the message header of UL information transfer message.
Perhaps, in the present embodiment, the state that current virtual link is opened or closed also can not adopt independent flag to indicate, and directly adopt SAP state information in up HRPD message, this SAP state information is arranged in the message body of HRPD, being to represent that virtual link opened at 1 o'clock, is to represent that virtual link closed at 0 o'clock.
Perhaps, can also adopt more mode to carry the state that current virtual link is opened or closed, specifically be not construed as limiting herein.
In the present embodiment, if the SAP state information in the message body of employing HRPD represents the state that current virtual link is opened or closed, need not to carry in the message header of UL information transfer message to forward and indicate.
Need to prove, in order to reduce the operation of MME, UE is when generating the forwarding indication, and this forwarding indication can be directly used in indication MME needs up HRPD message to be sent to which evolution Access Network.
202, UE sends UL information transfer message to evolution base station;
In the present embodiment, UE has generated UL information transfer message in step 201 after, UL information transfer message can be sent to evolution base station, concrete transmitting procedure is those skilled in the art's common practise, repeats no more herein.
203, evolution base station sends the up link tunnel message to MME;
Evolution base station can take out up HRPD message after receiving the UL information transfer message of UE transmission from its message body.
If what UE adopted in step 201 is to forward indication, evolution base station takes out this and forwards indication from the message header of UL information transfer message, and up HRPD message is carried in the message body of up link tunnel message, this forwarding indication is carried in the message header of up link tunnel message, in addition, this evolution base station can also add the area identification of this evolution base station static configuration in the message header of up link tunnel message.
If what UE adopted in step 201 is the SAP state information, evolution base station directly is carried on up HRPD message in the message body of up link tunnel message, in addition, this evolution base station can also add the area identification of this evolution base station static configuration in the message header of up link tunnel message.
After evolution base station has generated the up link tunnel message, this up link tunnel message can be sent to MME.
204, MME receives the up link tunnel message that evolution base station sends;
205, MME judges according to this up link tunnel message whether virtual link is opened, if open, execution in step 206, if close, execution in step 207;
In the present embodiment, MME can analyze this up link tunnel message after receiving the up link tunnel message of evolution base station transmission.
If what adopt is to forward indication, MME can read out from the message header of this up link tunnel message and forward indication, thereby determines whether virtual link is opened.
If what adopt is the SAP state information, MME reads out up HRPD message from the message body of this up link tunnel message, and this up HRPD message is resolved obtains the SAP state information, thereby determines whether virtual link is opened.
Need to prove, if UE is when generating this forwarding indication, directly use this forwarding indication in order to indicate MME to need up HRPD message to be sent to which evolution Access Network, MME need not to judge whether virtual link is opened, and directly according to the indication of UE, up HRPD message is sent to corresponding evolution Access Network.
206, the HRPD message in the up link tunnel message is forwarded to the first evolution Access Network;
In the present embodiment, open if MME determines virtual link, the up HRPD message in the up link tunnel message can be forwarded to the first evolution Access Network, this first evolution Access Network refers to the opposite end evolution Access Network in the S101 tunnel of the current correspondence of UE.
Need to prove, when indicating MME up HRPD message need to be forwarded to the opposite end evolution Access Network in S101 tunnel of the current correspondence of UE, MME can directly be forwarded to the first evolution Access Network with the up HRPD message in the up link tunnel message when this forwarding indication.
In the present embodiment, the implication in the S101 tunnel in the implication in concrete S101 tunnel and aforementioned embodiment shown in Figure 1 is identical, repeats no more herein.
207, determine the second evolution Access Network according to area identification;
In the present embodiment, close if MME determines virtual link, can determine the second corresponding evolution Access Network according to the area identification in the message header of up link tunnel message.
Need to prove, when indicating MME up HRPD message need to be forwarded to the second evolution Access Network corresponding to area identification, at first MME determines the second corresponding evolution Access Network according to the area identification in the message header of up link tunnel message when this forwarding indication.
Specifically determine that according to area identification the process of the second corresponding evolution Access Network is those skilled in the art's common practise, be not construed as limiting herein.
208, the HRPD message in the up link tunnel message is forwarded to the second evolution Access Network;
MME can be forwarded to the second evolution Access Network with the up HRPD message in the up link tunnel message after having determined the second evolution Access Network.
209, carry out conversation shift.
In the present embodiment, after the second evolution Access Network receives the up HRPD message of MME transmission, can and the first evolution Access Network between carry out conversation shift operation, with HRPD conversation shift to the second evolution Access Network between UE and the first evolution Access Network, concrete conversation shift process is those skilled in the art's common practise, is not construed as limiting herein.
Need to prove, if evolution base station is determined virtual link and is opened in step 203, or determine to forward indication in order to indicate MME up HRPD message to be forwarded to the opposite end evolution Access Network in the S101 tunnel of the current correspondence of UE, this evolution base station carrier area sign in the message header of up link tunnel message not.
In the present embodiment, if the up link tunnel message that MME sends according to evolution base station is determined the virtual link between UE and the first evolution Access Network and is opened, or when determining HRPD message need to be mail to the first evolution Access Network, the HRPD message that UE sends can be sent to this first evolution Access Network, the opposite end evolution Access Network in this first evolution Access Network is the current correspondence of UE S101 tunnel, so this first evolution Access Network is preserved the HRPD session, therefore the process of pre-registration can be proceeded, thereby the reliability of pre-registration process can be guaranteed;
Secondly, can adopt various ways to represent the state that current virtual link is opened or closed in the present embodiment, thus can select according to actual conditions, thus the flexibility that has improved the present embodiment scheme;
Again, when the state that is used for representing current virtual link unlatching or closes is indicated in the independent forwarding of employing, be arranged in the message header of up link tunnel message due to this forwarding indication, so can only resolving the message header of up link tunnel message, MME can know whether virtual link is opened, and need not further the message body of up link tunnel message to be resolved, therefore can reduce the load of MME;
Further, forwarding indication in the present embodiment can directly in order to indicate MME which evolution Access Network is up HRPD message need to be sent to, so MME can directly operate according to this forwarding indication accordingly, and need not judgement, thereby has further reduced the load of MME.
Below in conjunction with concrete practical application, the data transmission method in the embodiment of the present invention is described in detail, in the following embodiments, judge take MME whether virtual link is opened as example and describe, see also Fig. 3, the data transmission method in the embodiment of the present invention comprises:
301, UE is in MME registration or carrying out data session;
302, UE initiates pre-registration;
When certain radio condition triggers (receive as UE the indication that eNB sends, or UE the signal quality of objective network to be detected better, or other reason), UE determines to initiate the pre-registration process to target eAN.
303～305, UE carries out the HRPD interacting message by eNB, MME tunnel with eAN1, carries out the virtual link constructive process.
In the present embodiment, the message interaction process between UE and eAN1 is specific as follows:
303, UE sends UL information transfer message to eNB;
In the present embodiment to adopt independent forwarding to indicate to represent state that current virtual link opens or close to describe as example, UE carries up HRPD message in the message body of the UL information transfer message of eNB transmission, carries in the message header of UL information transfer message to forward indication.
Because not yet set up HRPD session between UE and eAN1 this moment, so this moment, this forwarding indication expression virtual link was closed.
304, eNB sends up link S1 CDMA2000 tunnel message to MME;
ENB sends in the message body of up link S1 CDMA2000 tunnel message of MME and carries up HRPD message, carries the area identification that forwards indication and this eNB static configuration in the message header of up link S1 CDMA2000 tunnel message.
305, MME sends to eAN1 and directly transmits request message;
After MME receives up link S1 CDMA2000 tunnel message, indicate according to the forwarding in message header, determine that virtual link closes, MME inquires eAN1 according to area identification, and send directly transmission request message to this eAN1, should directly transmit in request message and carry S101 session identification (S101Session ID), area identification and this up HRPD message.
After eAN1 receives the direct transmission request message of MME transmission, then send downstream message by MME and eNB to UE successively, so far complete the HRPD session establishment between UE and eAN1, detailed process is those skilled in the art's common practise.
306～309, after the virtual link of UE and eAN1 was opened, UE carried out a series of HRPD interacting messages by eNB, MME tunnel with eAN1/HSGW, as: create the HRPD session, carry out the HRPD session context and safeguard, establishment HRPD IP sessions carry etc.
Wherein, the message interaction process between UE and eAN1 is as follows:
306, UE sends UL information transfer message to eNB;
In the present embodiment to adopt independent forwarding to indicate to represent state that current virtual link opens or close to describe as example, UE carries up HRPD message in the message body of the UL information transfer message of eNB transmission, carries in the message header of UL information transfer message to forward indication.
Because set up HRPD session between UE and eAN1 this moment, opened so should forward indication expression virtual link this moment.
307, eNB sends up link S1 CDMA2000 tunnel message to MME;
ENB sends in the message body of up link S1 CDMA2000 tunnel message of MME and carries up HRPD message, carries in the message header of up link S1 CDMA2000 tunnel message and forwards indication.
308, MME sends to eAN1 and directly transmits request message;
After MME receives up link S1 CDMA2000 tunnel message, indicate according to the forwarding in message header, determine the virtual link unlatching, MME determines that the opposite end eAN in the S101 tunnel of the current correspondence of UE is eAN1, send to this eAN1 and directly transmit request message, this directly transmits and carries S101 session identification (S101 Session ID) and this up HRPD message in request message.
After eAN1 receives the direct transmission request message of MME transmission, then send downstream message by MME and eNB to UE successively, detailed process is those skilled in the art's common practise.
309, carry out information interaction between eAN1 and HRPD gateway (HSGW, HRPD Serving Gateway).
Need to prove, can not carry the area identification of eNB static configuration in the message header of the up link S1 CDMA2000 tunnel message in step 307.
310, strategy and charging rule functions (PCRF, Policy and Charging Rules Function) entity interaction process;
In the present embodiment, upgrade if the message interaction process between above-mentioned UE and eAN1 comprises service quality (QoS, Quality of Service) parameter, also comprise HSGW with the mutual process of PCRF, this process is optional process.
311, UE moves to AN2 from AN1;
In the situation that virtual link is opened, UE moves to the AN2 zone from AN1.Detailed process can be as follows: when UE moved to eNB2 from eNB1, wherein the area identification of eNB1 static configuration belonged to eAN1, and the area identification of eNB2 static configuration belongs to eAN2.
312～315, because UE is also finishing with the mutual message of eAN1, UE will continue by eNB, MME tunnel to the up HRPD message of eAN1 transmission.
Wherein UE, repeats no more to 309 identical with the message interaction process between eAN1 and step 306 herein.
316, PCRF entity interaction process;
In the present embodiment, upgrade if the message interaction process between above-mentioned UE and eAN1 comprises qos parameter, also comprise HSGW with the mutual process of PCRF, this process is optional process.
317～319, carry out the virtual link closing process;
After UE finished with the HRPD interacting message of eAN1, UE can initiatively initiate the virtual link closing process to eAN1 by eNB, MME tunnel.
EAN1 also can initiatively initiate the virtual link closing process to UE by eNB, MME tunnel.
In these two kinds of processes, UE needs to send UL information transfer message to eNB, wherein comprises up HRPD message and forwards indication, is in open mode because virtual link is current, and therefore this up HRPD message can be sent to eAN1 by MME.
320～322, after UE closes with the virtual link of eAN1, change if UE detects AN, and judgement need to carry out UATI when upgrading, UE will be by eNB, MME tunnel to eAN initiation UATI renewal process.
Wherein UE is as follows with the interacting message of eAN2:
320, UE sends UL information transfer message to eNB;
In the present embodiment to adopt independent forwarding to indicate to represent state that current virtual link opens or close to describe as example, UE carries up HRPD message in the message body of the UL information transfer message of eNB transmission, carries in the message header of UL information transfer message to forward indication.
Because the virtual link between this moment UE and eAN1 is closed, represent that virtual link closes so should forwardings indicate this moment.
321, eNB sends up link S1 CDMA2000 tunnel message to MME;
ENB sends in the message body of up link S1 CDMA2000 tunnel message of MME and carries up HRPD message, carries in the message header of up link S1 CDMA2000 tunnel message and forwards indication and area identification.
322, MME sends to eAN1 and directly transmits request message;
After MME receives up link S1 CDMA2000 tunnel message, indicate according to the forwarding in message header, determine that virtual link closes, MME is eAN2 according to eAN corresponding to the inquiry of the area identification in the message header of up link S1 CDMA2000 tunnel message, send to this eAN2 and directly transmit request message, should directly transmit in request message and carry S101 session identification (S101 Session ID), area identification and this up HRPD message.
After eAN2 receives the direct transmission request message of MME transmission, then send downstream message by MME and eNB to UE successively, detailed process is those skilled in the art's common practise.
323, carry out conversation shift between eAN1 and eAN2
After eAN2 receives up HRPD message, the current sessions of judgement UE is not belonged to this eAN, so initiate the A13 conversation shift to eAN1, the HRPD session of UE is moved to eAN2 from eAN1.
In the present embodiment, MME can judge whether the virtual link between UE and eAN1 is opened according to the up link S1 CDMA2000 tunnel message that evolution base station sends, when this virtual link is opened, the HRPD message that UE sends can be sent to this eAN1, this eAN1 is the opposite end eAN in the S101 tunnel of the current correspondence of UE, so this eAN1 preserves the HRPD session, therefore can proceed the process of pre-registration, thereby can guarantee the reliability of pre-registration process;
Secondly, when the state that is used for representing current virtual link unlatching or closes is indicated in the independent forwarding of employing, be arranged in the message header of up link S1 CDMA2000 tunnel message due to this forwarding indication, so can only resolving the message header of up link S1 CDMA2000 tunnel message, MME can know whether virtual link is opened, and need not further the message body of up link S1 CDMA2000 tunnel message to be resolved, therefore can reduce the load of MME.
The below is described the communication system in the embodiment of the present invention, sees also Fig. 4, and the communication system in the embodiment of the present invention comprises:
MME402, be used for receiving the up link tunnel message that evolution base station 401 sends, if determine the virtual link unlatching between UE and the first evolution Access Network 403 or determine that according to the up link tunnel message needs mail to the first evolution Access Network with HRPD message, are forwarded to the first evolution Access Network 403 with the HRPD message in the up link tunnel message according to the up link tunnel message;
The first evolution Access Network 403 is used for receiving the HRPD message that MME402 sends;
The first evolution Access Network 403 is the opposite end evolution Access Network in the tunnel of the current correspondence of UE, and this tunnel can be the S101 tunnel in actual applications.
See also Fig. 5, another embodiment of the communication system in the embodiment of the present invention comprises:
MME503, be used for receiving the up link tunnel message that evolution base station 502 sends, if determine that according to the up link tunnel message virtual link between UE and the first evolution Access Network 504 opens, or determine HRPD message to be mail to the first evolution Access Network, the HRPD message in the up link tunnel message is forwarded to the first evolution Access Network 504, if determining the virtual link between UE and the first evolution Access Network 504 closes, or determine HRPD message to be sent to the second evolution Access Network corresponding to area identification, according to the second evolution Access Network 505 corresponding to the inquiry of the area identification in the up link tunnel message, HRPD message in the up link tunnel message is forwarded to the second evolution Access Network 505,
The first evolution Access Network 504 be used for to receive the HRPD message that MME503 sends, and the first evolution Access Network 504 is the opposite end evolution Access Network in the S101 tunnel of the current correspondence of UE;
The second evolution Access Network 505 receives the HRPD message that MME503 sends when being used for.
in the present embodiment, if the up link tunnel message that MME503 sends according to evolution base station 502 is determined the virtual link between UE and the first evolution Access Network 504 and is opened, or when determining HRPD message need to be mail to the first evolution Access Network, the HRPD message that UE sends can be sent to this first evolution Access Network 504, the opposite end evolution Access Network in this first evolution Access Network 504 is the current correspondences of UE S101 tunnel, so this first evolution Access Network 504 is preserved the HRPD session, therefore can proceed the process of pre-registration, thereby can guarantee the reliability of pre-registration process.
The below introduces the mobile management entity in the embodiment of the present invention, sees also Fig. 6, and embodiment of the mobile management entity in the embodiment of the present invention comprises:
Receiving element 601 is used for receiving the up link tunnel message that evolution base station sends, and comprises the HRPD message that UE generates in the up link tunnel message;
Judging unit 602, be used for judging according to the up link tunnel message whether the virtual link between UE and the first evolution Access Network is opened or determine whether that according to the up link tunnel message needs mail to the first evolution Access Network with HRPD message, the first evolution Access Network is the opposite end evolution Access Network in the tunnel of the current correspondence of UE, and this tunnel can be the S101 tunnel in actual applications;
Transmitting element 603 is used for opening with the virtual link between the first evolution Access Network as UE, or definite HRPD message need to be mail to the first evolution Access Network the time, and the HRPD message in the up link tunnel message is forwarded to the first evolution Access Network.
Mobile management entity in the present embodiment can further include:
Transmitting element 604 also is used for the HRPD message of up link tunnel message is forwarded to the second evolution Access Network.
For ease of understanding, the below is described the mobile management entity in the embodiment of the present invention with a concrete application scenarios:
In the present embodiment, as UE after MME registration, or when carrying out data session, UE can initiate the pre-registration flow process, pre-registration is carried out in request in objective network, UE can send up HRPD message to MME by evolution base station, and the receiving element in MME 601 can receive the up link tunnel message from evolution base station, comprises the HRPD message that UE generates in this up link tunnel message.
Receiving element 601 is after evolution base station receives the up link tunnel message, judging unit 602 can judge whether the virtual link between UE and the first evolution Access Network is opened according to this up link tunnel message, if open, transmitting element 603 is forwarded to the first evolution Access Network with the HRPD message in this up link tunnel message, the judgment mode of describing in concrete judgment mode and aforementioned embodiment shown in Figure 2 is identical, repeats no more herein.
If judging unit 602 is determined the virtual link between UE and the first evolution Access Network and is closed, the second evolution Access Network corresponding to area identification inquiry in the up link tunnel message that receives according to receiving element 601 of query unit 604, and inform transmitting element 603, transmitting element 603 is forwarded to the second evolution Access Network with the HRPD message in this up link tunnel message.
Need to prove, in the present embodiment, the first evolution Access Network refers to the opposite end evolution Access Network in the tunnel of the current correspondence of UE, and this tunnel can be the S101 tunnel in actual applications.
S101 in the present embodiment refers to internetwork interface, it is the interface between MME and evolution Access Network in the present embodiment, this S101 interface is in fact a tunnel, be used for forwarding the signaling message between subscriber equipment and objective network, assisting user equipment carries out pre-registration at objective network, or switches to objective network from source network, and this S101 tunnel is those skilled in the art's common practise, only be briefly described herein, be not described in detail.
In the embodiment of the present invention, judging unit 602 can judge whether the virtual link between UE and the first evolution Access Network is opened according to the up link tunnel message that evolution base station sends, when this virtual link is opened, transmitting element 603 can be sent to this first evolution Access Network with the HRPD message that UE sends, the opposite end evolution Access Network in this first evolution Access Network is the current correspondence of UE S101 tunnel, so this first evolution Access Network is preserved the HRPD session, therefore the process of pre-registration can be proceeded, thereby the reliability of pre-registration process can be guaranteed.
The below introduces the evolution base station embodiment in the embodiment of the present invention, sees also Fig. 7, and embodiment of the evolution base station in the embodiment of the present invention comprises:
The second receiving element 701, be used for receiving the UL information transfer message that UE sends, carry HRPD message and forwarding indication that UE generates in UL information transfer message, whether the forwarding indication is used to indicate virtual link and opens, or indication MME is sent to the first evolution Access Network or the second evolution Access Network with HRPD message;
Message generation unit 702 is used for the HRPD message of UL information transfer message is carried in the message body of up link tunnel message, is carried in the message header of up link tunnel message forwarding indication;
The second transmitting element 703 is used for sending the up link tunnel message to MME.
For ease of understanding, the below is described the evolution base station embodiment in the embodiment of the present invention with a concrete application scenarios:
The second receiving element 701 in evolution base station receives the UL information transfer message that UE sends, and message generation unit 702 can be taken out up HRPD message from its message body.
If UE adopts the state that indication represents that current virtual link is opened or closed that forwards, message generation unit 702 is taken out this and is forwarded indication from the message header of UL information transfer message, and up HRPD message is carried in the message body of up link tunnel message, this forwarding indication is carried in the message header of up link tunnel message, in addition, this message generation unit 702 can also be added the area identification of this evolution base station static configuration in the message header of up link tunnel message.
If UE adopts the SAP state information to represent the state that current virtual link is opened or closed, message generation unit 702 directly is carried on up HRPD message in the message body of up link tunnel message, in addition, this message generation unit 702 can also be added the area identification of this evolution base station static configuration in the message header of up link tunnel message.
After message generation unit 702 had generated the up link tunnel message, the second transmitting element 703 can be sent to MME with this up link tunnel message.
in the present embodiment, the up link tunnel message that message generation unit 702 generates can carry the information whether the indication virtual link is opened, and the second transmitting element 703 can be sent to MME with this up link tunnel message, institute is so that MME can determine whether virtual link is opened according to this up link tunnel message, and when opening, the up HRPD message that UE sends can be sent to the first evolution Access Network, the opposite end evolution Access Network in this first evolution Access Network is the current correspondence of UE S101 tunnel, so this first evolution Access Network is preserved the HRPD session, therefore can proceed the process of pre-registration, thereby can guarantee the reliability of pre-registration process.
The below introduces the subscriber equipment embodiment in the embodiment of the present invention, sees also Fig. 8, and embodiment of the subscriber equipment in the embodiment of the present invention comprises:
Acquiring unit 801 is used for generating HRPD message, and obtains the state of current virtual link;
The second message generation unit 803 for HRPD message being carried at the message body of UL information transfer message, is carried in the message header of UL information transfer message forwarding indication;
The 3rd transmitting element 804 is used for sending UL information transfer message to evolution base station.
For ease of understanding, the below is described the subscriber equipment embodiment in the embodiment of the present invention with a concrete application scenarios:
When UE need to send up HRPD message to the evolution Access Network, acquiring unit 801 generated HRPD message, and obtains the state of current virtual link, and indication generation unit 802 generates corresponding forwarding indication according to the state of virtual link;
The second message generation unit 803 can be according to this HRPD message generation UL information transfer message, and concrete mode can comprise:
The state that current virtual link in the present embodiment is opened or closed can adopt multiple carrying mode, for example the second message generation unit 803 can generate independent forwarding indication, this forwarding indication is used to indicate the state that current virtual link is opened or closed, the second message generation unit 803 can be carried on up HRPD message in the message body of UL information transfer message, and this forwarding indication is carried in the message header of UL information transfer message.
Perhaps, in the present embodiment, the state that current virtual link is opened or closed also can not adopt independent flag to indicate, and directly adopt SAP state information in up HRPD message, this SAP state information is arranged in the message body of HRPD, being to represent that virtual link opened at 1 o'clock, is to represent that virtual link closed at 0 o'clock.
Perhaps, can also adopt more mode to carry the state that current virtual link is opened or closed, specifically be not construed as limiting herein.
Need to prove, if the SAP state information in the message body of employing HRPD represents the state that current virtual link is opened or closed, the second message generation unit 803 need not to carry in the message header of UL information transfer message to forward and indicates.
In the present embodiment, after the second message generation unit 803 had generated UL information transfer message, the 3rd transmitting element 804 can be sent to evolution base station with UL information transfer message.
Need to prove, acquiring unit 801 in the present embodiment and indication generation unit 802 can be regarded as the HRPD module in UE, and the second message generation unit 803 and the 3rd transmitting element 804 can be regarded as the LTE module in UE, and namely the UE in the present embodiment also can include only HRPD module and LTE module.
in the present embodiment, the UL information transfer message that the second message generation unit 803 generates can carry the information whether the indication virtual link is opened, and the 3rd transmitting element 804 can be sent to MME with this UL information transfer message by evolution base station, the institute so that MME can determine virtual link and whether open, and when opening, the up HRPD message that UE sends can be sent to the first evolution Access Network, the opposite end evolution Access Network in this first evolution Access Network is the current correspondence of UE S101 tunnel, so this first evolution Access Network is preserved the HRPD session, therefore can proceed the process of pre-registration, thereby can guarantee the reliability of pre-registration process.
One of ordinary skill in the art will appreciate that all or part of step that realizes in above-described embodiment method is to come the relevant hardware of instruction to complete by program, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium of mentioning can be read-only memory, disk or CD etc.
Above a kind of data transmission method provided by the present invention and communication system and relevant device are described in detail, for one of ordinary skill in the art, thought according to the embodiment of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (14)
1. a data transmission method, is characterized in that, comprising:
Mobile management entity MME receives the up link tunnel message that evolution base station sends, and comprises the High Rate Packet Data HRPD message that user equipment (UE) generates in described up link tunnel message;
If MME determines that according to described up link tunnel message the virtual link between described UE and the first evolution Access Network opens, the HRPD message in described up link tunnel message is forwarded to described the first evolution Access Network;
The opposite end evolution Access Network in the tunnel that described the first evolution Access Network is the current correspondence of described UE.
2. method according to claim 1, is characterized in that, also comprises in described up link tunnel message: the area identification of described evolution base station static configuration;
Described method also comprises:
If described MME determines that described UE closes with the virtual link between the first evolution Access Network or determines that according to described up link tunnel message needs are sent to the second evolution Access Network corresponding to described area identification with described HRPD message according to described up link tunnel message, according to the second evolution Access Network corresponding to described area identification inquiry;
MME is forwarded to described the second evolution Access Network with the HRPD message in described up link tunnel message.
3. method according to claim 2, is characterized in that, also comprises in described up link tunnel message: forward indication;
Described forwarding indication is arranged in the message header of described up link tunnel message, described forwarding indication offers described evolution base station by described UE, whether described forwarding indication is used to indicate described virtual link and opens, or indication MME is sent to the first evolution Access Network or the second evolution Access Network with described HRPD message;
Described method also comprises:
The forwarding indication that comprises in the message header of described MME by described up link tunnel message judges whether described virtual link is opened, or judgement need to be sent to described HRPD message the first evolution Access Network or the second evolution Access Network.
4. method according to claim 2, is characterized in that, carries the SAP state information in the HRPD message in described up link tunnel message;
Whether described SAP state information is used to indicate described virtual link and opens, and described SAP state information offers described evolution base station by described UE;
Described method also comprises:
Described MME judges by carrying the SAP state information in the HRPD message in described up link tunnel message whether described virtual link is opened.
5. method according to claim 2, is characterized in that, the up link tunnel message that described MME receives the evolution base station transmission comprises before:
Evolution base station receives the UL information transfer message that UE sends, carry HRPD message and forwarding indication that UE generates in described UL information transfer message, whether described forwarding indication is used to indicate described virtual link and opens, or indication MME is sent to the first evolution Access Network or the second evolution Access Network with described HRPD message;
Evolution base station is carried at the HRPD message in described UL information transfer message in the message body of up link tunnel message, and described forwarding indication is carried in the message header of up link tunnel message;
Evolution base station sends described up link tunnel message to MME.
6. method according to claim 5, is characterized in that, the UL information transfer message that described evolution base station receives the UE transmission comprises before:
UE generates HRPD message, and obtains the state of current virtual link;
UE generates corresponding forwarding indication according to the state of described virtual link, and whether described forwarding indication is used to indicate described virtual link and opens, or indication MME is sent to the first evolution Access Network or the second evolution Access Network with described HRPD message;
UE is carried at described HRPD message in the message body of UL information transfer message, and described forwarding indication is carried in the message header of UL information transfer message;
UE sends described UL information transfer message to evolution base station.
7. method according to claim 2, is characterized in that, described MME comprises after the HRPD message in the up link tunnel message is forwarded to described the second evolution Access Network:
Carry out conversation shift operation between the second evolution Access Network and described the first evolution Access Network, with described the second evolution Access Network extremely of the HRPD conversation shift between described UE and described the first evolution Access Network.
8. a communication system, is characterized in that, comprising:
Evolution base station is used for sending the up link tunnel message, comprises the HRPD message that UE generates in described up link tunnel message;
MME, be used for receiving the up link tunnel message that described evolution base station sends, if determine that according to described up link tunnel message the virtual link between described UE and the first evolution Access Network opens, the HRPD message in described up link tunnel message be forwarded to described the first evolution Access Network;
The first evolution Access Network is used for receiving the HRPD message that described MME sends;
The opposite end evolution Access Network in the tunnel that described the first evolution Access Network is the current correspondence of described UE.
9. communication system according to claim 8, is characterized in that,
Described MME also is used for when determining according to described up link tunnel message that described UE closes with the virtual link between the first evolution Access Network or determine that according to described up link tunnel message needs are sent to the second evolution Access Network corresponding to area identification with described HRPD message, according to the second evolution Access Network corresponding to the inquiry of the area identification in described up link tunnel message, the HRPD message in described up link tunnel message is forwarded to described the second evolution Access Network;
Described communication system also comprises:
The second evolution Access Network is used for receiving the HRPD message that described MME sends.
10. communication system according to claim 9, is characterized in that, described communication system also comprises:
Subscriber equipment, be used for generating HRPD message and forward indication, described HRPD message and described forwarding indication are sent to described evolution base station, whether described forwarding indication is used to indicate described virtual link and opens, or indication MME is sent to the first evolution Access Network or the second evolution Access Network with described HRPD message;
Described evolution base station also is used for generating the up link tunnel message according to described HRPD message and described forwarding indication.
11. a mobile management entity is characterized in that, comprising:
Receiving element is used for receiving the up link tunnel message that evolution base station sends, and comprises the HRPD message that UE generates in described up link tunnel message;
Judging unit is used for judging according to described up link tunnel message whether the virtual link between described UE and the first evolution Access Network is opened, the opposite end evolution Access Network in the tunnel that described the first evolution Access Network is the current correspondence of described UE;
Transmitting element is used for when the virtual link between described UE and the first evolution Access Network is opened, the HRPD message in described up link tunnel message being forwarded to described the first evolution Access Network.
12. mobile management entity according to claim 11 is characterized in that, described mobile management entity also comprises:
Query unit, the virtual link that is used between described UE and the first evolution Access Network is closed, or when determining described HRPD message need to be sent to the second evolution Access Network corresponding to area identification, according to the second evolution Access Network corresponding to the inquiry of the area identification in described up link tunnel message;
Described transmitting element also is used for the HRPD message of described up link tunnel message is forwarded to described the second evolution Access Network.
13. an evolution base station is characterized in that, comprising:
The second receiving element, be used for receiving the UL information transfer message that UE sends, carry HRPD message and forwarding indication that UE generates in described UL information transfer message, whether the virtual link that described forwarding indication is used to indicate between described UE and the first evolution Access Network is opened;
Message generation unit is used for the HRPD message of described UL information transfer message is carried in the message body of up link tunnel message, and described forwarding indication is carried in the message header of up link tunnel message;
The second transmitting element, be used for sending described up link tunnel message to MME, when making described MME determine that according to described up link tunnel message virtual link between described UE and described the first evolution Access Network is opened, the HRPD message that described UE is sent is sent to described the first evolution Access Network, the opposite end evolution Access Network in the tunnel that described the first evolution Access Network is the current correspondence of described UE.
14. a subscriber equipment is characterized in that, comprising:
Acquiring unit is used for generating HRPD message, and obtains the state of current virtual link;
The indication generation unit, generate corresponding forwarding indication according to the state of described virtual link, whether described forwarding indication is used to indicate described virtual link and opens, or indication MME is sent to the first evolution Access Network or the second evolution Access Network with described HRPD message;
The second message generation unit for described HRPD message being carried at the message body of UL information transfer message, is carried at described forwarding indication in the message header of UL information transfer message;
the 3rd transmitting element, be used for sending described UL information transfer message to evolution base station, make described evolution base station that the HRPD message in described UL information transfer message is carried in the message body of up link tunnel message, described forwarding indication is carried in the message header of up link tunnel message, send described up link tunnel message to MME, when making described MME determine that according to described up link tunnel message virtual link between described UE and described the first evolution Access Network is opened, the HRPD message that described UE is sent is sent to described the first evolution Access Network, the opposite end evolution Access Network in the tunnel that described the first evolution Access Network is the current correspondence of described UE.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101141784A (en) * | 2006-09-06 | 2008-03-12 | 华为技术有限公司 | Idle paging method, access equipment and system of cross access equipment |
| WO2008131581A1 (en) * | 2007-04-26 | 2008-11-06 | Huawei Technologies Co., Ltd. | System and method for updating uati of an access terminal |
| CN101420724A (en) * | 2008-11-20 | 2009-04-29 | 华为技术有限公司 | Information transmission method, mobile management equipment and network system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8009612B2 (en) * | 2007-07-17 | 2011-08-30 | Motorola Mobility, Inc. | Method of establishing an HRPD signal link |
-
2009
- 2009-07-17 CN CN 200910159151 patent/CN101959173B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101141784A (en) * | 2006-09-06 | 2008-03-12 | 华为技术有限公司 | Idle paging method, access equipment and system of cross access equipment |
| WO2008131581A1 (en) * | 2007-04-26 | 2008-11-06 | Huawei Technologies Co., Ltd. | System and method for updating uati of an access terminal |
| CN101420724A (en) * | 2008-11-20 | 2009-04-29 | 华为技术有限公司 | Information transmission method, mobile management equipment and network system |
Non-Patent Citations (5)
| Title |
|---|
| 3GPP.3GPP TS 23.402 V9.1.0，3rd Generation Partnership Project |
| 3GPP.3GPP TS 23.402 V9.1.0,3rd Generation Partnership Project;Technical Specification Group Services and System Aspects;Architecture enhancements for non-3GPP accesses (Release 9).《3GPP TS 23.402 V9.1.0,3rd Generation Partnership Project;Architecture enhancements for non-3GPP accesses (Release 9)》.2009, * |
| Architecture enhancements for non-3GPP accesses (Release 9).《3GPP TS 23.402 V9.1.0，3rd Generation Partnership Project |
| Architecture enhancements for non-3GPP accesses (Release 9)》.2009, |
| Technical Specification Group Services and System Aspects |
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