CN101959174B - Data transmission method, communication system and associated equipment - Google Patents
Data transmission method, communication system and associated equipment Download PDFInfo
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- CN101959174B CN101959174B CN 200910159152 CN200910159152A CN101959174B CN 101959174 B CN101959174 B CN 101959174B CN 200910159152 CN200910159152 CN 200910159152 CN 200910159152 A CN200910159152 A CN 200910159152A CN 101959174 B CN101959174 B CN 101959174B
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Abstract
The embodiment of the invention discloses a data transmission method, a communication system and associated equipment, which are used for ensuring the reliability of a pre-registration process. The method of the embodiment comprises the following steps that: a second evolution access network receives a message sent by a mobile management entity, wherein the message carries a high rate packet data (HRPD) message of user equipment; and if the second evolution access network determines that a preset forwarding condition is satisfied according to the HRPD message, the second evolution access network transmits the message or the HRPD message to a first evolution access network corresponding to the HRPD message. The embodiment of the invention also provides the communication system and the associated equipment. The embodiment of the invention can effectively ensure 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 between Long Term Evolution (LTE, Long Term Evolution) network and High Rate Packet Data (HRPD, HighRate Packet Data) network, switch.
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 at the another one network, so when causing the subscriber equipment across a network to switch, must register first, 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 the 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 creates virtual link between S101 tunnel and the eAN by an eNB between MME and network;
4, after virtual link is opened, carry out the HRPD interacting message between UE and the 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 receives after the HRPD message of the 2nd eNB transmission, according to its Sector ID HRPD message is forwarded to the 2nd eAN.
But, in the above-mentioned technical scheme, UE carries out pre-registration in an eNB, then virtual link is opened, when UE moves to the 2nd eNB from an eNB, the HRPD session of UE still is kept among an eAN corresponding to an eNB, so after MME is sent to the 2nd eAN with HRPD message, do not preserve the HRPD session among 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 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 invention provides comprises: the second evolution Access Network receives the message that mobile management entity sends, and carries the High Rate Packet Data HRPD message of subscriber equipment in the described message; If the second evolution Access Network is determined to satisfy the forwarding condition that presets according to described HRPD message, then the second evolution Access Network is sent to the first evolution Access Network corresponding to described HRPD message with described message or described HRPD message.
The communication system that the embodiment of the invention provides comprises: mobile management entity, be used for sending message, and carry the High Rate Packet Data HRPD message of subscriber equipment in the described message; The second evolution Access Network, be used for receiving the message that described mobile management entity sends, if determine to satisfy the forwarding condition that presets according to the HRPD message that comprises in the described message, then described message or described HRPD message be sent to the first evolution Access Network corresponding to described HRPD message; The first evolution Access Network is used for receiving described message or the described HRPD message that described the second evolution Access Network sends.
The evolution Access Network that the embodiment of the invention provides comprises: receiving element, be used for receiving the message that mobile management entity sends, and carry the High Rate Packet Data HRPD message of subscriber equipment in the described message; Verification unit is used for judging whether to satisfy the forwarding condition that presets according to described HRPD message; Retransmission unit is used for when determining to satisfy the forwarding condition that presets described message or described HRPD message being sent to the first evolution Access Network corresponding to described HRPD message.
As can be seen from the above technical solutions, the embodiment of the invention has the following advantages:
In the embodiment of the invention, after the second evolution Access Network receives message, can judge according to the HRPD message in the message, when determining to satisfy the forwarding condition, the first evolution Access Network that the second evolution Access Network is corresponding according to the HRPD information query, and the HRPD message in message or the message is forwarded to the first evolution Access Network, institute is so that subscriber equipment can be undertaken alternately by the second evolution Access Network and the first evolution Access Network, because the first evolution Access Network is preserved terminal 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 invention;
Fig. 2 is another embodiment schematic diagram of data transmission method in the embodiment of the invention;
Fig. 3 is a data transmission method embodiment schematic diagram again in the embodiment of the invention;
Fig. 4 is embodiment schematic diagram of communication system in the embodiment of the invention;
Fig. 5 is embodiment schematic diagram of evolution Access Network in the embodiment of the invention;
Fig. 6 is another embodiment schematic diagram of evolution Access Network in the embodiment of the invention.
Embodiment
The embodiment of the invention provides a kind of data transmission method and communication system and relevant device, can guarantee the reliability of pre-registration process.
See also Fig. 1, embodiment of data transmission method comprises in the embodiment of the invention:
101, the second evolution Access Network receives the message that mobile management entity sends;
In the present embodiment, when UE has carried out position movement in the pre-registration process, after the scope of the first evolution Access Network is carried out the scope of the second evolution Access Network, the HRPD message that UE sends can be sent to the second evolution Access Network by MME, concrete, MME can be carried at the HRPD message that UE sends in other message, and this message is sent to the second evolution Access Network.
Thus, the second evolution Access Network can receive message from MME, carries the HRPD message of UE in this message.
Need to prove that in the present embodiment, MME can be carried at the HRPD message that UE sends in the S101 message, and this S101 message is sent to the second evolution Access Network, this S101 message refers to be carried on the message in the S101 tunnel.
102, when the second evolution Access Network determine to satisfy the forwarding condition that presets according to HRPD message, the first evolution Access Network corresponding according to this HRPD information query then;
In the present embodiment, the second evolution Access Network receives after the message, can resolve this message and obtain HRPD message, and can determine the current forwarding condition that presets that whether satisfies according to this HRPD message, if satisfy, the first evolution Access Network that then can be corresponding according to this HRPD information query, the deterministic process of concrete forwarding condition will be described in detail in subsequent embodiment.
103, the second evolution Access Network is sent to the first evolution Access Network with message or HRPD message.
After the second evolution Access Network inquires the first corresponding evolution Access Network, can will directly be transmitted to from the message that MME receives the first evolution Access Network, or the HRPD message of carrying in this message will be transmitted to the first evolution Access Network.
Need to prove, in the present embodiment, the second evolution Access Network is those skilled in the art's common practise according to the first evolution Access Network corresponding to HRPD information query, be that step 102 and 103 can be regarded as in the present embodiment: " when the second evolution Access Network is determined to satisfy the forwarding condition that presets according to HRPD message, message or HRPD message being sent to the first evolution Access Network corresponding to HRPD message ".
In the present embodiment, after the second evolution Access Network receives message, can judge according to the HRPD message in the message, when determining to satisfy the forwarding condition, the first evolution Access Network that the second evolution Access Network is corresponding according to the HRPD information query, and the HRPD message in message or the message is forwarded to the first evolution Access Network, institute is so that subscriber equipment can be undertaken alternately by the second evolution Access Network and the first evolution Access Network, because the first evolution Access Network is preserved terminal session, therefore the process of pre-registration can be proceeded, thereby the reliability of pre-registration process can be guaranteed.
The below is described the data transmission method in the present embodiment for concrete forwarding condition, sees also Fig. 2, and another embodiment of data transmission method comprises in the embodiment of the invention:
201, the second evolution Access Network receives the S101 message that mobile management entity sends;
In the present embodiment, when UE has carried out position movement in the pre-registration process, after the scope of the first evolution Access Network is carried out the scope of the second evolution Access Network, the HRPD message that UE sends can be sent to the second evolution Access Network by MME, concrete, MME can be carried at the HRPD message that UE sends in the S101 message, and this S101 message is sent to the second evolution Access Network.
The HRPD message that take MME UE is sent in the present embodiment is carried at S101 message and describes as example, need to prove, MME can also be carried at the HRPD message that UE sends in other message that are carried on the S101 tunnel in actual applications, and concrete type of message is not construed as limiting herein.
202, judge whether the terminal iidentification type is unicast terminal address designator (UATI, Unicast AccessTerminal Identification), if then execution in step 203, if not, then execution in step 206;
In the present embodiment, the second evolution Access Network gets access to after the S101 message, S101 message is resolved the HRPD message of wherein being carried, judge whether the terminal iidentification type in this HRPD message is UATI, if then execution in step 203, if not, execution in step 206 then.
Whether the terminal session of 203, judging subscriber equipment belongs to the second evolution Access Network, if then execution in step 206, if not, then execution in step 204;
In the present embodiment, the terminal iidentification type of the second evolution Access Network in determining HRPD message can judge further whether the terminal session of the subscriber equipment that this HRPD message is corresponding belongs to the second evolution Access Network after being UATI, concrete mode can for:
The second evolution Access Network obtains the colour coding (Color Code) of the UATI of HRPD message, and judge whether this colour coding belongs to the second evolution Access Network, if belong to, the terminal session that subscriber equipment then is described belongs to the second evolution Access Network, if this colour coding does not belong to the second evolution Access Network, illustrate that then the terminal session of subscriber equipment does not belong to the second evolution Access Network.
204, judge whether virtual link is opened, if then execution in step 205, if not, then execution in step 206;
In the present embodiment, the second evolution Access Network can judge further whether the virtual link of subscriber equipment is opened after the terminal session of determining subscriber equipment does not belong to the second evolution Access Network, concrete judgment mode can for:
The second evolution Access Network obtains the SAP state information in the HRPD message, and determines according to the content of this SAP state information indication whether the virtual link of subscriber equipment is opened, and detailed process is those skilled in the art's common practise, does not do restriction herein.
205, the second evolution Access Network is forwarded to the first evolution Access Network with S101 message or HRPD message;
When the second evolution Access Network determines that the terminal iidentification type in the HRPD message is UATI, and the terminal session of subscriber equipment does not belong to the second evolution Access Network, and when the virtual link of subscriber equipment is opened, then the second evolution Access Network can be determined the first corresponding evolution Access Network according to the colour coding of the UATI of HRPD message, and will directly be forwarded to from the S101 message that MME receives this first evolution Access Network, or the HRPD message in the S101 message will be forwarded to the first evolution Access Network.
Need to prove, the first evolution Access Network in the present embodiment equally also is the opposite end evolution Access Network in the S101 tunnel of subscriber equipment foundation, virtual link is opened and to be illustrated that then the session negotiation between subscriber equipment and the first evolution Access Network not yet finishes, and needs that then S101 message or HRPD message are forwarded to the first evolution Access Network and proceeds the pre-registration process.
206, processed by the second evolution Access Network.
In the present embodiment, if the terminal iidentification type in the HRPD message is not UATI, then the second evolution Access Network is directly processed accordingly to this HRPD message;
If the terminal iidentification type in the HRPD message is UATI, but the colour coding of this UATI belongs to the second evolution Access Network, illustrates that then the terminal session of subscriber equipment belongs to the second evolution Access Network, and then the second evolution Access Network also can be processed accordingly to this HRPD message;
If the terminal iidentification type in the HRPD message is UATI, and the colour coding of this UATI does not belong to the second evolution Access Network, but virtual link is closed, illustrate that then the session negotiation between subscriber equipment and the first evolution Access Network finishes, can turn by the second evolution Access Network and process, then the second evolution Access Network also can be processed accordingly to this HRPD message.
In the present embodiment, satisfy " the terminal iidentification type in the HRPD message is UATI; and the terminal session of subscriber equipment does not belong to the second evolution Access Network; and the virtual link of subscriber equipment is opened " and this three conditions and regard as and satisfy the forwarding condition that presets, be understandable that, in actual applications, can also have other various conditions as the forwarding condition, for example directly should be processed by the first evolution Access Network in this S101 message of S101 message indicating, can be regarded as yet and satisfy the forwarding condition, concrete forwarding condition is not done restriction herein.
Need to prove, above-described is the situation that the second evolution Access Network S101 message that will receive from MME or HRPD message are transmitted to the first evolution Access Network, in actual applications, the first evolution Access Network is receiving this S101 message or HRPD message, and carry out after corresponding the processing, can generate the 2nd S101 message, and can the 2nd S101 message be forwarded to MME by the second evolution Access Network, the final UE that arrives, detailed process can for:
The second evolution Access Network receives the 2nd S101 message that the first evolution Access Network sends;
The second evolution Access Network is forwarded to mobile management entity with the 2nd S101 message.
In the superincumbent description, the second evolution Access Network is transmitted the message between MME and the first evolution Access Network, after UE and the first evolution Access Network had been finished session negotiation, the associative operation that then can also carry out session specifically can be divided into following several situation:
(1), UE and the first evolution Access Network finish after the session negotiation, UE still stays in the zone of the second evolution Access Network:
In this case, follow-up UE and the second evolution Access Network of then needing carries out communication, and need not to carry out communication with the first evolution Access Network again, so the second evolution Access Network can and the first evolution Access Network between carry out the conversation shift operation, the terminal session of UE is moved to the second evolution Access Network from the first evolution Access Network, concrete process can for:
The second evolution Access Network receives message transfer request or the session transfer request that the first evolution Access Network sends, and carries the Session Hand-off indication in message transfer request or the session transfer request;
The second evolution Access Network confirms to the first evolution Access Network feedback message acknowledge or Session Hand-off, and carries out Session Hand-off according to the Session Hand-off indication, and the terminal session of subscriber equipment is transferred to the second evolution Access Network by the first evolution Access Network.
(2), UE and the first evolution Access Network finish before the negotiation, UE gets back to again in the zone of the first evolution Access Network:
In this case, follow-up UE and the first evolution Access Network of then needing carries out communication, and need not to carry out transfer by the second evolution Access Network again, so the second evolution Access Network can be carried out the session deletion action, the S101 context deletion of this UE that this locality is preserved, concrete process can for:
The second evolution Access Network receives the message transfer request that the first evolution Access Network sends, and carries session deletion indication in the message transfer request;
The second evolution Access Network is to the first evolution Access Network feedback message acknowledge, and according to the S101 context of the subscriber equipment of preserving in session deletion indication deletion the second evolution Access Network.
In the present embodiment, after the second evolution Access Network receives S101 message, can judge according to the HRPD message in the S101 message, terminal iidentification type in determining HRPD message is UATI, and the terminal session of subscriber equipment does not belong to the second evolution Access Network, and when the virtual link of subscriber equipment is opened, the second evolution Access Network is according to the first evolution Access Network corresponding to colour coding inquiry of UATI, and the HRPD message in S101 message or the S101 message is forwarded to the first evolution Access Network, institute is so that subscriber equipment can be undertaken alternately by the second evolution Access Network and the first evolution Access Network, because the first evolution Access Network is preserved terminal session, therefore the process of pre-registration can be proceeded, thereby the reliability of pre-registration process can be guaranteed;
Secondly, if UE and the first evolution Access Network are finished before the negotiation, UE gets back to again in the zone of the first evolution Access Network, and then the second evolution Access Network can be deleted the S101 context of local this UE that preserves, thus conserve network resources.
For ease of understanding, below in conjunction with instantiation the data transmission method in the present embodiment is described, see also Fig. 3, another embodiment of data transmission method comprises in the embodiment of the invention:
301, UE registers in MME;
302, UE begins the pre-registration process;
In the present embodiment, UE and evolved universal mobile communcations system grounding wireless access network (E-UTRAN, Evovled Universal Mobile Telecommunications System Terrestrial Radio AccessNetwork) connect, E-UTRAN indication UE begins the pre-registration with eHRPD.
303, set up communications conduit between UE and the eHRPD.
In the present embodiment, UE, E-UTRAN and MME support eHRPD idle message and the PPP message between transparent transmission UE and the MME.
Use 101 tunnels between MME and the eAN, MME and eAN1/PCF1 create a S101 session.
304, UATI request/response process;
If UE does not distribute UATI, perhaps UATI needs to upgrade, and then UE uses the air interface signaling request of HRPD to distribute and receives UATI.
305, session setting up procedure;
UE and eAN1/PCF1 are by the session of the HRPD signaling message configuration HRPD of S101 tunnel transmission.
306, facility level authentication process;
If the Carrier Requirements device authentication, UE is connected a PPP connection and exchange CHAP signaling with eAN1/PCF1.
307～308, eAN1/PCF1 uses A12 signaling actuating equipment authentication;
309～310, eAN1/PCF1 and HRPD gateway (HSGW, HRPD ServingGateWay) exchange A11 signaling message connects to set up main A10;
311～313, authentication and tactful acquisition process;
In the present embodiment, UE is according to process and the HSGW exchange authentication signaling of X.S0057-0 definition.As the part of this flow process, HSGW can obtain and user-dependent policy information from policy control and regulation function entity (PCRF, PolicyControl and Rule Function).In case authentication is finished, UE and HSGW exchange of signaling message are set up Internet protocol (IP, the Internet Protocol) business contexts between them, comprise the IP address, service quality (QoS, Quality of Service) information, traffic flow template etc.
Need to prove that above-mentioned steps 301 to 313 is those skilled in the art's common practise, do not do restriction herein.
314, session negotiation;
UE and eAN1/PCF1 begin consulting session.
315, UE position movement, transmission S101 message;
In the present embodiment, the session negotiation of UE and eAN1/PCF1 not yet finishes, and the UE shift position is to the pre-registration district related with eAN2.MME is transmitted to eAN2 with the S101 message 1 of UE.
316, eAN2 transmits the message between MME and the eAN1;
EAN2 is after determining to satisfy the forwarding condition that presets, the S101 message 1 that receives from MME or the HRPD message this S101 message 1 can be forwarded to eAN1, the deterministic process of the concrete forwarding condition that presets is identical with the deterministic process of aforementioned embodiment repeating condition shown in Figure 2, repeats no more herein.
After the HRPD message of eAN1 in receiving S101 message 1 or S101 message 1, according to agreement predetermined processing S101 message 1, finish after the processing, eAN1 constructs S101 message 2, and S101 message 2 is sent to eAN2.
EAN2 is transmitted to MME with S101 message 2 after receiving S101 message 2.
Above-mentioned steps 315 and step 316 repeat always, until the session negotiation of UE and eAN1 finishes.
Need to prove that following step 317 can be divided into two kinds of situations to 319, is respectively:
(1), UE and eAN1 finish after the session negotiation, UE still stays in the zone of eAN2:
In this case, follow-up UE and the eAN2 of then needing carries out communication, and need not to carry out communication with eAN1 again, thus eAN2 can and eAN1 between carry out the conversation shift operation, the terminal session of UE is moved to eAN2 from eAN1, thus step 317 to 319 can for:
317, eAN1 sends A13-S101 Message Transfer message or A13 Session Hand-off command messages to eAN2;
In the present embodiment, carry the session transfer request indication in A13-S101 Message Transfer message or the A13 Session Hand-off command messages.
318, after eAN2 receives A13-S101 Message Transfer message or A13 Session Hand-off command messages, send A13-S101 Message Transfer Ack message or A13 Session Hand-off order affirmation conduct response to eAN1.
319, carry out interaction process between eAN1 and the eAN2;
EAN2 carries out A13 Session Hand-off process after receiving A13-S101 Message Transfer message or A13 Session Hand-off command messages, the session of UE is transferred on the eAN2 from eAN1.
(2), UE and eAN1 finish before the negotiation, UE gets back to again in the zone of eAN1:
In this case, follow-up UE and the eAN1 of then needing carries out communication, and need not to carry out transfer by eAN2 again, so eAN2 can carry out the session deletion action, the S101 context deletion of this UE that this locality is preserved, thus step 317 to 319 can for:
317, eAN1 sends A13-S101 Message Transfer message to eAN2;
In the present embodiment, carry session deletion indication in the A13-S101 Message Transfer message.
318, eAN2 receives A13-S101 Message Transfer message, sends A13-S101Message Transfer Ack message as response to eAN1.
319, eAN2 carries out respective handling;
EAN2 is after receiving A13-S101 Message Transfer message, and the S101 context of local this UE that preserves of deletion is namely no longer preserved forwarding address for this UE.
Need to prove, in the present embodiment, employed signaling in step 317 and the step 318 " A13-S101Message Transfer message " and " A13-S101 Message Transfer Ack message " are the message of new definition in the present embodiment, and the message format of concrete A13-S101 Message Transfer message can be as shown in the table:
Table 1
The bit layout of this A13-S101Message Transfer message specifically can be as shown in the table:
Table 2
The bit layout of the cell Correlation ID of above-mentioned A13-S101Message Transfer message is as shown in the table:
Table 3
In the bit layout of Correlation ID, the number of eight yuan of hytes that Length comprises with this cell of binary representation.
Correlation Value comes association request message and response message with 4 bits.
The bit layout of the cell S101 Container of above-mentioned A13-S101 Message Transfer message is as shown in the table:
Table 4
In the bit layout of S101 Container, the number of eight yuan of hytes that Length comprises with this cell of binary representation.
What comprise among the S101 message is the content of S101 message.
The bit layout of the cell S101 Forward Indicator of above-mentioned A13-S101 Message Transfer message is as shown in the table:
Table 5
In the bit layout of S101 Container, the number of eight yuan of hytes that Length comprises with this cell of binary representation.
S101 Context Release: if this parameter is set to " 1 ", then the recipient need to delete the S101 context and stop forwarding S101 message, if this parameter is set to " 0 ", then the recipient ignores this parameter.
Session Transfer Required: if this parameter is set to " 1 ", then the recipient comes session by A13 conversation shift flow process from the transmit leg migration, if this parameter is set to " 0 ", then the recipient ignores this parameter.
The message format of concrete A13-S101 Message Transfer Ack message can be as shown in the table:
Table 6
The bit layout of this A13-S101 Message Transfer Ack message specifically can be as shown in the table:
Table 7
320～321, carry out IP session maintenance and policy update process.
Step 320 and step 321 are those skilled in the art's common practise in the present embodiment, do not do restriction herein.
In the present embodiment, after eAN2 receives S101 message, can judge according to the HRPD message in the S101 message, terminal iidentification type in determining HRPD message is UATI, and the terminal session of subscriber equipment does not belong to eAN2, and when the virtual link of subscriber equipment is opened, eAN2 is according to eAN1 corresponding to colour coding inquiry of UATI, and the HRPD message in S101 message or the S101 message is forwarded to eAN1, institute is so that subscriber equipment can be undertaken alternately by eAN2 and eAN1, because eAN1 preserves terminal session, therefore can proceed the process of pre-registration, thereby can guarantee the reliability of pre-registration process.
The below introduces the communication system in the embodiment of the invention, sees also Fig. 4, and embodiment of the communication system in the embodiment of the invention comprises:
Mobile management entity 401 is used for sending message, carries the High Rate Packet Data HRPD message of subscriber equipment in the message;
The second evolution Access Network 402 is used for receiving the message that mobile management entity sends, if determine to satisfy the forwarding condition that presets according to the HRPD message that comprises in the S101 message, then message or HRPD message is sent to the first evolution Access Network corresponding to HRPD message;
The first evolution Access Network 403 is used for receiving message or the HRPD message that the second evolution Access Network sends.
Need to prove that in the present embodiment, the message that mobile management entity 401 sends can be S101 message, also can be other message that are carried on the S101 tunnel, particular type is not construed as limiting herein.
The first evolution Access Network 403 in the present embodiment also is used for sending the 2nd S101 message to the second evolution Access Network 402;
The second evolution Access Network 402 also is used for receiving the 2nd S101 message, and S101 message is forwarded to mobile management entity 401;
Mobile management entity 401 also is used for receiving the 2nd S101 message.
In the present embodiment, the first evolution Access Network 403 also is used for sending message transfer request or session transfer request to the second evolution Access Network 402, carries the Session Hand-off indication in message transfer request or the session transfer request;
The second evolution Access Network 402 also is used for confirming to the first evolution Access Network 403 feedback message acknowledges or Session Hand-off, and carry out Session Hand-off according to Session Hand-off indication, the terminal session of subscriber equipment is transferred to the second evolution Access Network 402 by the first evolution Access Network 403.
In the present embodiment, the first evolution Access Network 403 also is used for sending message transfer request to the second evolution Access Network 402, carries session deletion indication in the message transfer request;
The second evolution Access Network 402 also is used for to the first evolution Access Network 403 feedback message acknowledges, and deletes the S101 context of the subscriber equipment of preserving in the second evolution Access Network 402 according to session deletion indication.
In the present embodiment, after the second evolution Access Network 402 receives S101 message, can judge according to the HRPD message in the S101 message, terminal iidentification type in determining HRPD message is UATI, and the terminal session of subscriber equipment does not belong to the second evolution Access Network 402, and when the virtual link of subscriber equipment is opened, the second evolution Access Network 402 is according to the first evolution Access Network 403 corresponding to colour coding inquiry of UATI, and the HRPD message in S101 message or the S101 message is forwarded to the first evolution Access Network 403, institute is so that subscriber equipment can be undertaken alternately by the second evolution Access Network 402 and the first evolution Access Network 403, because the first evolution Access Network 403 is preserved terminal session, therefore the process of pre-registration can be proceeded, thereby the reliability of pre-registration process can be guaranteed;
Secondly, if UE and the first evolution Access Network 403 are finished before the negotiation, UE gets back to again in the zone of the first evolution Access Network 403, and then the second evolution Access Network 402 can be deleted the S101 context of local this UE that preserves, thus conserve network resources.
The below introduces the evolution Access Network in the embodiment of the invention, sees also Fig. 5, and embodiment of the evolution Access Network in the embodiment of the invention comprises:
Receiving element 501 is used for receiving the message that mobile management entity sends, and carries the High Rate Packet Data HRPD message of subscriber equipment in the message;
Need to prove that in the present embodiment, the message that receiving element 501 sends can be S101 message, also can be other message that are carried on the S101 tunnel, particular type is not construed as limiting herein.
For ease of understanding, the below is described in detail, and sees also Fig. 6, and the evolution Access Network in the embodiment of the invention comprises:
Receiving element 601 is used for receiving the S101 message that mobile management entity sends, and carries the High Rate Packet Data HRPD message of subscriber equipment in the S101 message;
Evolution Access Network in the present embodiment can further include:
Then retransmission unit 604 can be sent to this first evolution Access Network with S101 message or HRPD message.
Evolution Access Network in the present embodiment can further include:
The second receiving element 605 is used for receiving the 2nd S101 message that the first evolution Access Network sends;
The second retransmission unit 606 is used for the 2nd S101 message is forwarded to mobile management entity.
Evolution Access Network in the present embodiment can further include:
Transfer request receiving element 607 is used for receiving message transfer request or the session transfer request that the first evolution Access Network sends, and carries the Session Hand-off indication in message transfer request or the session transfer request;
Session Hand-off unit 608 is used for confirming to the first evolution Access Network feedback message acknowledge or Session Hand-off, and carries out Session Hand-off according to the Session Hand-off indication, and the terminal session of subscriber equipment is transferred to this evolution Access Network by the first evolution Access Network.
Evolution Access Network in the present embodiment can further include:
Removal request receiving element 609 is used for receiving the message transfer request that the first evolution Access Network sends, and carries session deletion indication in the message transfer request;
Session delete cells 610 is used for to the first evolution Access Network feedback message acknowledge, and deletes the S101 context of the subscriber equipment of preserving according to session deletion indication.
The evolution Access Network of describing in the present embodiment can be the second evolution Access Network among the aforementioned embodiment shown in Figure 2, and for ease of understanding, the below is described the evolution Access Network in the embodiment of the invention with a concrete application scenarios:
In the present embodiment, when UE has carried out position movement in the pre-registration process, after the scope of the first evolution Access Network is carried out the scope of the second evolution Access Network, the HRPD message that UE sends can be sent to the second evolution Access Network by MME, concrete, MME can be carried at the HRPD message that UE sends in the S101 message, and this S101 message is sent to receiving element 601.
Receiving element 601 gets access to after the S101 message, S101 message is resolved the HRPD message of wherein being carried, verification unit 602 judges whether the terminal iidentification type in this HRPD message is UATI, and whether the terminal session of subscriber equipment belongs to the second evolution Access Network, and whether virtual link is opened, the deterministic process of describing among concrete deterministic process and the aforementioned embodiment shown in Figure 2 is consistent, repeats no more herein.
When verification unit 602 determines that the terminal iidentification type in the HRPD message is UATI, and the terminal session of subscriber equipment does not belong to the second evolution Access Network, and when the virtual link of subscriber equipment is opened, then query unit 603 can be determined the first corresponding evolution Access Network according to the colour coding of the UATI of HRPD message, retransmission unit 604 will directly be forwarded to from the S101 message that MME receives this first evolution Access Network, or the HRPD message in the S101 message is forwarded to the first evolution Access Network.
The first evolution Access Network is receiving this S101 message or HRPD message, and carry out after corresponding the processing, can generate the 2nd S101 message, and can the 2nd S101 message be forwarded to MME by the second receiving element 605 and second retransmission unit 606 of the second evolution Access Network, finally arrive UE.
After UE and the first evolution Access Network had been finished session negotiation, the associative operation that then can also carry out session specifically can be divided into following several situation:
(1), UE and the first evolution Access Network finish after the session negotiation, UE still stays in the zone of the second evolution Access Network:
In this case, follow-up UE and the second evolution Access Network of then needing carries out communication, and need not to carry out communication with the first evolution Access Network again, so the second evolution Access Network can and the first evolution Access Network between carry out the conversation shift operation, the terminal session of UE is moved to the second evolution Access Network from the first evolution Access Network, concrete process can for:
Transfer request receiving element 607 receives message transfer request or the session transfer request that the first evolution Access Network sends, and carries the Session Hand-off indication in message transfer request or the session transfer request;
Session Hand-off unit 608 confirms to the first evolution Access Network feedback message acknowledge or Session Hand-off, and carries out Session Hand-off according to the Session Hand-off indication, and the terminal session of subscriber equipment is transferred to the second evolution Access Network by the first evolution Access Network.
(2), UE and the first evolution Access Network finish before the negotiation, UE gets back to again in the zone of the first evolution Access Network:
In this case, follow-up UE and the first evolution Access Network of then needing carries out communication, and need not to carry out transfer by the second evolution Access Network again, so the second evolution Access Network can be carried out the session deletion action, the S101 context deletion of this UE that this locality is preserved, concrete process can for:
Removal request receiving element 609 receives the message transfer request that the first evolution Access Network sends, and carries session deletion indication in the message transfer request;
Session delete cells 610 is to the first evolution Access Network feedback message acknowledge, and according to the S101 context of the subscriber equipment of preserving in session deletion indication deletion the second evolution Access Network.
In the present embodiment, after receiving element 601 receives S101 message, verification unit 602 can be judged according to the HRPD message in the S101 message, terminal iidentification type in determining HRPD message is UATI, and the terminal session of subscriber equipment does not belong to the second evolution Access Network, and when the virtual link of subscriber equipment is opened, query unit 603 is according to the first evolution Access Network corresponding to colour coding inquiry of UATI, retransmission unit 604 is forwarded to the first evolution Access Network with the HRPD message in S101 message or the S101 message, institute is so that subscriber equipment can be undertaken alternately by the second evolution Access Network and the first evolution Access Network, because the first evolution Access Network is preserved terminal session, therefore the process of pre-registration can be proceeded, thereby the reliability of pre-registration process can be guaranteed.
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 finish 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.
More than 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 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:
The second evolution Access Network receives the message that mobile management entity sends, and carries the High Rate Packet Data HRPD message of subscriber equipment in the described message;
If the second evolution Access Network is determined to satisfy the forwarding condition that presets according to described HRPD message, then the second evolution Access Network is sent to the first evolution Access Network corresponding to described HRPD message with described message or described HRPD message.
2. method according to claim 1 is characterized in that, described method also comprises:
The second evolution Access Network judges whether the terminal iidentification type in the described HRPD message is unicast terminal address designator UATI, if UATI, then
Judge according to the colour coding of described UATI whether the terminal session of described subscriber equipment belongs to the second evolution Access Network, if do not belong to, then
Judge that whether the SAP state in the described HRPD message indicates virtual link to open, if the indication virtual link is opened, then determines to satisfy the forwarding condition that presets.
3. method according to claim 1 and 2 is characterized in that, described message is S101 message; Described the second evolution Access Network comprises after described message or described HRPD message are sent to the first evolution Access Network corresponding to described HRPD message:
The second evolution Access Network receives the 2nd S101 message that the first evolution Access Network sends;
The second evolution Access Network is forwarded to described mobile management entity with described the 2nd S101 message.
4. method according to claim 3 is characterized in that, the 2nd S101 message that described the second evolution Access Network receives the transmission of the first evolution Access Network comprises afterwards:
The second evolution Access Network receives message transfer request or the session transfer request that the first evolution Access Network sends, and carries the Session Hand-off indication in described message transfer request or the session transfer request;
The second evolution Access Network is confirmed to described the first evolution Access Network feedback message acknowledge or Session Hand-off, and carry out Session Hand-off according to the indication of described Session Hand-off, the terminal session of described subscriber equipment is transferred to described the second evolution Access Network by described the first evolution Access Network.
5. method according to claim 3 is characterized in that, the 2nd S101 message that described the second evolution Access Network receives the transmission of the first evolution Access Network comprises afterwards:
The second evolution Access Network receives the message transfer request that the first evolution Access Network sends, and carries session deletion indication in the described message transfer request;
The second evolution Access Network is to described the first evolution Access Network feedback message acknowledge, and according to the S101 context of the described subscriber equipment of preserving in described the second evolution Access Network of described session deletion indication deletion.
6. a communication system is characterized in that, comprising:
Mobile management entity is used for sending message, carries the High Rate Packet Data HRPD message of subscriber equipment in the described message;
The second evolution Access Network, be used for receiving the message that described mobile management entity sends, if determine to satisfy the forwarding condition that presets according to the HRPD message that comprises in the described message, then described message or described HRPD message be sent to the first evolution Access Network corresponding to described HRPD message;
The first evolution Access Network is used for receiving described message or the described HRPD message that described the second evolution Access Network sends.
7. communication system according to claim 6 is characterized in that, the message that described mobile management entity sends is S101 message;
Described the first evolution Access Network also is used for sending the 2nd S101 message to described the second evolution Access Network;
Described the second evolution Access Network also is used for receiving described the 2nd S101 message, and described S101 message is forwarded to described mobile management entity;
Described mobile management entity also is used for receiving described the 2nd S101 message.
8. communication system according to claim 7, it is characterized in that, described the first evolution Access Network also is used for sending message transfer request or session transfer request to described the second evolution Access Network, carries the Session Hand-off indication in described message transfer request or the session transfer request;
Described the second evolution Access Network also is used for confirming to described the first evolution Access Network feedback message acknowledge or Session Hand-off, and carry out Session Hand-off according to the indication of described Session Hand-off, the terminal session of described subscriber equipment is transferred to described the second evolution Access Network by described the first evolution Access Network.
9. communication system according to claim 7 is characterized in that, described the first evolution Access Network also is used for sending message transfer request to described the second evolution Access Network, carries session deletion indication in the described message transfer request;
Described the second evolution Access Network also is used for to described the first evolution Access Network feedback message acknowledge, and deletes the S101 context of the described subscriber equipment of preserving in described the second evolution Access Network according to described session deletion indication.
10. an evolution Access Network is characterized in that, comprising:
Receiving element is used for receiving the message that mobile management entity sends, and carries the High Rate Packet Data HRPD message of subscriber equipment in the described message;
Verification unit is used for judging whether to satisfy the forwarding condition that presets according to described HRPD message;
Retransmission unit is used for when determining to satisfy the forwarding condition that presets described message or described HRPD message being sent to another evolution Access Network corresponding to described HRPD message.
11. evolution Access Network according to claim 10, it is characterized in that, described verification unit specifically is used for judging whether the terminal iidentification type of described HRPD message is unicast terminal address designator UATI, if UATI, then judge according to the colour coding of described UATI whether the terminal session of described subscriber equipment belongs to this evolution Access Network, if do not belong to, judge then whether the SAP state in the described HRPD message indicates virtual link to open, if the indication virtual link is opened, then determine to satisfy the forwarding condition that presets.
12. according to claim 10 or 11 described evolution Access Networks, it is characterized in that the message that described evolution Access Network receives from mobile management entity is S101 message;
Described evolution Access Network also comprises:
The second receiving element is used for receiving the 2nd S101 message that another evolution Access Network sends;
The second retransmission unit is used for described the 2nd S101 message is forwarded to described mobile management entity.
13. according to claim 10 or 11 described evolution Access Networks, it is characterized in that described evolution Access Network also comprises:
The transfer request receiving element is used for receiving message transfer request or the session transfer request that another evolution Access Network sends, and carries the Session Hand-off indication in described message transfer request or the session transfer request;
The Session Hand-off unit, be used for confirming to described another evolution Access Network feedback message acknowledge or Session Hand-off, and carry out Session Hand-off according to the indication of described Session Hand-off, the terminal session of described subscriber equipment is transferred to this evolution Access Network by described another evolution Access Network.
14. according to claim 10 or 11 described evolution Access Networks, it is characterized in that described evolution Access Network also comprises:
The removal request receiving element is used for receiving the message transfer request that another evolution Access Network sends, and carries session deletion indication in the described message transfer request;
The session delete cells is used for to described another evolution Access Network feedback message acknowledge, and deletes the S101 context of the described subscriber equipment of described preservation according to described session deletion indication.
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| CN101291535A (en) * | 2008-06-11 | 2008-10-22 | 中兴通讯股份有限公司 | Method and system for terminal to switch among different networks |
| 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 |
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| CN101291535A (en) * | 2008-06-11 | 2008-10-22 | 中兴通讯股份有限公司 | Method and system for terminal to switch among different networks |
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