CN101854618B

CN101854618B - Signaling reduction method, device and system

Info

Publication number: CN101854618B
Application number: CN2009100811551A
Authority: CN
Inventors: 蒋铭; 唐妙然
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2009-04-03
Filing date: 2009-04-03
Publication date: 2012-11-07
Anticipated expiration: 2029-04-03
Also published as: WO2010111968A1; CN101854618A

Abstract

The embodiment of the invention relates to a signaling reduction method. A second signaling reduction network device of a second routing area receives a routing area update request sent by the UE; if the second signaling reduction network device and a first signaling reduction network device of a first routing area prior to routing area update initiated by the UE do not activate idle-mode signaling reduction ISR for the UE, the second signaling reduction network device negotiates with the first signaling reduction network device to activate ISR for the UE, and after the activation of ISR for the UE is confirmed, a network register device is notified; and the network system supported by the second routing area is different from the network system supported by the first routing area. The embodiment of the invention also provides a signaling reduction device and a system. The embodiment of the invention effectively improves the problem of signaling load caused by invalid RAU between different network systems without changing conventional terminals, is highly compatible with conventional networks, and can be easily implemented.

Description

Signaling reduction method, Apparatus and system

Technical field

The present invention relates to communication technical field, relate in particular to a kind of signaling reduction method, Apparatus and system.

Background technology

Fast development along with telecommunication technology and association area thereof; Mobile communication has experienced 2G (GPRS (GPRS; General Packet Radio Service)) to 3G (conventional wireless communication systems (UMTS; Universal Mobile Telecommunication System)) differentiation also will further evolve to Long Term Evolution LTE (grouping system of evolution (EPS, EvolvedPacket System)) on this basis.

As subscriber equipment (UE; User Equipment) after registration on the network; Positional information (Routing Area RA with record self place; Routing Area), write down the packet domain Temporary Mobile Station Identity (P-TMSI, Packet Temporary Mobile Station Identity) of network simultaneously for its distribution.Under the general situation, UE is in holding state, does not carry out data service, does not set up real signaling between UE and the network and is connected with data, and we are referred to as UE and are in the IDLE attitude.When variation has taken place in the position of UE; Such as: moved to another RA from a RA; For the UE relevant information that is write down in the network that upgrades in time, this moment, UE sent the Routing Area Update request message to relevant network node, for example sent to Serving GPRS Support Node (SGSN; Serving GPRS Support Node), carry out the Routing Area Update flow process.At this moment, because the change of UE position, the old side SGSN before moving possibly no longer be suitable for service UE; To select new side SGSN is the UE service; New side SGSN will obtain said UE related context from old side SGSN, comprise mobile management (MM, Mobility Management) and packet data protocol session (PDP; Packet Data Protocol) context possibly distribute new P-TMSI for UE simultaneously again.Receive after Routing Area Update accepts message RAU Accept, UE will preserve new P-TMSI and current place RA sign (RAI).In addition, because change has taken place SGSN, new side SGSN needs more new technological process (Update Location) of executing location.The change that to write down SGSN as the attaching position register (HLR, Home Location Register) of record UE CAMEL-Subscription-Information in the network, and executing location cancellation flow process (Cancel Location) are cancelled old side SGSN and are gone up the information that UE registers.

As previously mentioned; Mobile communications network exists the various network standard in evolution process, as: GPRS, UMTS, Long Term Evolution (LTE, Long Time Evolution) etc.; Some restrictions from cost of investment and existing network transformation; A lot of places all can exist two kinds even two or more network formats simultaneously, therefore, also exist multimode UE and the network node (like 2G SGSN and 3G SGSN) of supporting multiple network standard such as 2G (GPRS) and 3G (UTMS) simultaneously.Because the scope (route district) of being divided under the various network standard possibly exist overlapping on the geographical position.Therefore, when the UE that supports 2G and 3G simultaneously in this frequent moving process in zone because frequent district reselecting will frequently trigger RAU (Routing Area Update flow process), as: from 2G to 3G, switch back to 2G from 3G again.

This a large amount of invalid routing update signaling traffic load that causes because of frequent district reselecting; Quantity is 5～6 times of other RAU; Increased network load greatly, can cause very big impact, also must affect user experience simultaneously the management equipment in the mobile communications network.

For solving different radio access technologies (RAT; Radio Access Technology) invalid RAU Signalling exchange between; The solution that prior art proposes is: under the LTE network; All possess under signaling reduction under the Idle state (ISR, Idle-mode Signaling Reduction) the ability situation at terminal and network equipment, consult to activate ISR by terminal and network equipment.

There is following shortcoming at least in prior art:

Activate the process need terminal of ISR and participate in, however present most of terminal, and for example existing G/U network (GPRS and UMTS) terminal does not have the ability of consulting to activate ISR, so the scheme of prior art can't be applied to existing G/U network.

Summary of the invention

The embodiment of the invention provides a kind of signaling reduction method, Apparatus and system, need not to activate ISR under the terminal participation situation, effectively improves the signaling traffic load problem that the invalid RAU between different network formats brings.

The embodiment of the invention realizes through following technical scheme:

The embodiment of the invention provides a kind of signaling reduction method, comprising:

The second signaling reduction network equipment in secondary route district receives the Routing Area Update request that user equipment (UE) sends;

If it is not that said UE activates signaling reduction ISR under the Idle state that the said second signaling reduction network equipment and said UE initiate between the first signaling reduction network equipment of the first via by the district before this Routing Area Update; The then said second signaling reduction network equipment and the said first signaling reduction network equipment are consulted to activate ISR for said UE; And after confirming as said UE activation ISR, it is that said UE has activated ISR that the said second signaling reduction network equipment of informing network depositing equipment and said first is practiced thrift the network equipment; The network formats that said secondary route district supports is different from the network formats that the said first via is supported by the district.

The embodiment of the invention provides a kind of signaling reduction network equipment, comprising:

First receiving element is used to receive the Routing Area Update request that user equipment (UE) sends;

ISR activates the unit; Be used between the first signaling reduction network equipment before this signaling reduction network equipment and this Routing Area Update of said UE initiation under the signaling reduction ISR situation under the said UE activation Idle state; Consult to activate ISR with the said first signaling reduction network equipment for said UE; And after consulting to confirm as said UE activation ISR, informing network depositing equipment this signaling reduction network equipment and the said first signaling reduction network equipment are that said UE has activated ISR; The network formats that the route district at said first signaling reduction network equipment place supports is different from the network formats of the route district support at this signaling reduction network equipment place.

The embodiment of the invention provides a kind of signaling reduction system, comprising: the first signaling reduction network equipment, the second signaling reduction network equipment and network depositing equipment;

The said first signaling reduction network equipment is positioned at the first via by the district, is the signaling reduction network equipment before this Routing Area Update of UE initiation;

The said second signaling reduction network equipment is positioned at the secondary route district; Be used for after the Routing Area Update request that receives said UE transmission; If be not that said UE activates signaling reduction ISR under the Idle state between the said first signaling reduction network equipment and the said second signaling reduction network equipment; Consult to activate ISR with the said first signaling reduction network equipment for said UE; And after confirming as said UE activation ISR, it is that said UE has activated ISR that the said second signaling reduction network equipment of informing network depositing equipment and said first is practiced thrift the network equipment, and the network formats that wherein said secondary route district supports is different from the network formats that the said first via is supported by the district;

Said network depositing equipment is used to receive the notice of the said second signaling reduction network equipment, writes down the information that said UE registers and be recorded as the information that UE activates ISR on the first signaling reduction network equipment and the said second signaling reduction network equipment.

Technical scheme by the invention described above embodiment provides can be found out; It is that UE activates ISR that the embodiment of the invention is consulted by network equipment; Need not to change existing terminal; Effectively reduced the network burden of initiating a large amount of RAU flow processs when move back and forth at the terminal and producing between two kinds of various network standards, this technology and existing network are compatible strong, are easy to realize.

Description of drawings

Fig. 1 is an embodiment of the invention signaling reduction method flow chart;

Fig. 2 is applied to G/U flow through a network figure for embodiment of the invention signaling reduction method;

Fig. 3 is the concrete application example flow chart of embodiment of the invention signaling reduction method;

Fig. 4 is the signaling reduction equipment first example structure sketch map provided by the invention;

Fig. 5 is that ISR activates the cellular construction sketch map in the embodiment of the invention signaling reduction equipment shown in Figure 4;

Fig. 6 is the signaling reduction equipment second example structure sketch map provided by the invention;

Fig. 7 is signaling reduction equipment the 3rd an example structure sketch map provided by the invention;

Fig. 8 is signaling reduction equipment the 4th an example structure sketch map provided by the invention;

Fig. 9 is signaling reduction equipment the 5th an example structure sketch map provided by the invention;

Figure 10 is an embodiment of the invention network depositing equipment structural representation;

Figure 11 is an embodiment of the invention signaling reduction system configuration sketch map.

Embodiment

To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.

The second signaling reduction network equipment in secondary route district receives the Routing Area Update request that UE sends;

If it is not that said UE activates signaling reduction (ISR under the Idle state that the said second signaling reduction network equipment and UE initiate between the first signaling reduction network equipment of the first via by the district before this Routing Area Update; Idle-mode Signaling Reduction); The then said second signaling reduction network equipment and the said first signaling reduction network equipment are consulted to activate ISR for said UE; And after confirming as said UE activation ISR, it is that said UE has activated ISR that the said second signaling reduction network equipment of informing network depositing equipment and said first is practiced thrift the network equipment; The network formats that said secondary route district supports is different from the network formats that the said first via is supported by the district.

The embodiment of the invention is consulted to activate ISR for UE by network equipment (the signaling reduction network equipment); Need not to change existing terminal; Effectively improve the signaling traffic load problem that the invalid RAU between different network formats brings; Promptly reduced the network burden of initiating a large amount of RAU flow processs when UE moves back and forth and producing between two kinds of various network standards, this technology and existing network are compatible strong, are easy to realize.

The embodiment of the invention provides a kind of signaling reduction method, to be example shown in Fig. 1, comprises the steps:

Step 10: the second signaling reduction network equipment in secondary route district receives the Routing Area Update request that UE sends;

Step 11: if the said second signaling reduction network equipment and UE initiate the preceding first via of this Routing Area Update by between the first signaling reduction network equipment of distinguishing not being said UE activation SR; The then said second signaling reduction network equipment and the said first signaling reduction network equipment are consulted to activate ISR for said UE; And after confirming as said UE activation ISR, it is that said UE has activated ISR that the said second signaling reduction network equipment of informing network depositing equipment and said first is practiced thrift the network equipment;

The network formats that said secondary route district supports is different from the network formats that the said first via is supported by the district.

The said second signaling reduction network equipment and the said first signaling reduction network equipment are consulted to comprise for said UE activates ISR:

The said second signaling reduction network equipment sends context request message and gives the said first signaling reduction network equipment, and the MM and the PDP Context of asking said UE carry first and support the ISR sign in the said context request message; The said second signaling reduction network equipment receives the context response information that the said first signaling reduction network equipment sends, and carries MM and the PDP Context of said UE in the said context response information and carries the second support ISR sign.

First support the value of ISR sign whether to represent requesting activation ISR through what carry in the said context request message, and second support the value of ISR sign representes whether allow to activate ISR through what carry in the said context response information.Value as if the first support ISR sign of carrying in the said context request message is the value of expression requesting activation ISR, and the value that the second support ISR that carries in the said context response information identifies is for representing to allow the value of activation ISR; The then said second signaling reduction network equipment and said first is practiced thrift the network equipment and is confirmed as said UE and activate ISR, in the said second signaling reduction network equipment and the said first signaling reduction network equipment, preserves MM and the PDP Context of said UE and is the information of UE activation ISR.Value as if the first support ISR sign of carrying in the said context request message is the value of expression requesting activation ISR, and the value that the second support ISR that carries in the said context response information identifies is for representing not allow to activate the value of ISR; The then said second signaling reduction network equipment and said first is practiced thrift the network equipment and is consulted to confirm not to be that said UE activates ISR; Or the value of the first support ISR sign of carrying in the said context request message is to represent the not value of requesting activation ISR, and the value of the second support ISR sign of carrying in the said context response information is for representing not allow to activate the value of ISR; The then said second signaling reduction network equipment and said first is practiced thrift the network equipment and is consulted to confirm not to be that said UE activates ISR.

Because at the two ends signaling reduction network equipment that activates ISR; As preserving the information that this activates ISR in the said first signaling reduction network equipment and the said second signaling reduction network equipment; Therefore after the Routing Area Update request that the said first signaling reduction network equipment or the said UE of the follow-up reception of the said second signaling reduction network equipment send, can determine whether to have activated ISR for said UE according to the information of this activation ISR.

In addition; Owing in the said second signaling reduction network equipment and the said first signaling reduction network equipment, preserve MM and the PDP Context of said UE; Therefore follow-up said UE is after initiating Routing Area Update between the said second signaling reduction network equipment and the said first signaling reduction network equipment; Need not to carry out the MM that obtains said UE and the operation of PDP Context, effectively saved the signaling in the Routing Area Update flow process.

Support the ISR sign if carry first in the said context request message; And this first support the ISR sign value be the predetermined expression value of requesting activation ISR not; Represent that then the said second signaling reduction network equipment has the ISR ability, do not activate ISR but negotiation is not said UE; Or carry second in the said context response information and support the ISR sign, and value cannot activate the value of ISR for predetermined expression, representes that then the said first signaling reduction network equipment has the ISR ability, but consults to confirm be said UE activation ISR.Support the ISR sign to guarantee the compatibility with the existing network network element through whether carrying; Consult to activate to carry in the ISR process and support the ISR sign; For discerning this support ISR sign but because the other reasons refusal activates the equipment (the not old network equipment of upgrading) that ISR perhaps not discerns this sign; ISR will can not set up owing to consulting failure, not receive whether to have the restriction of ISR ability between the network element in the intercommunication.

After consulting to confirm as said UE and activating ISR, the said second signaling reduction network equipment of said informing network depositing equipment and the said first saving network equipment are that the process that said UE has activated ISR comprises:

The said second signaling reduction network equipment sends the location update request message of carrying ISR activation sign and gives said network depositing equipment;

Said network depositing equipment activates sign according to this ISR and confirms that it is that said UE has activated ISR that the said second signaling reduction network equipment and said first is practiced thrift the network equipment; In the record information on the first signaling reduction network equipment and the said second signaling reduction network equipment, registered of said UE on the said network depositing equipment and be recorded as the information that UE activates ISR, and do not carry out the route district cancellation flow process with the said first signaling reduction network equipment.

The said second signaling reduction network equipment and the said first signaling reduction network equipment are consulted for behind the said UE activation ISR following situation to take place, and following several kinds of situation do not have the sequencing restriction:

1) the said second signaling reduction network equipment will be given the said first signaling reduction network equipment synchronously for P-TMSI and the RAI that said UE distributes.

The mapping relations that on the said first signaling reduction network equipment and the said second signaling reduction network equipment, can preserve P-TMSI+RAI and user index respectively; Said simultaneous operation makes UE initiate the RAU flow process at the first signaling reduction network equipment next time; When carrying RAI sign that the second signaling reduction network equipment distributes and P-TMSI; The said first signaling reduction network equipment can navigate to concrete user through the second signaling reduction network equipment synchronous P-TMSI and RAI; Thereby can determine whether further that said for this reason UE has activated ISR; If confirm as said UE and activated ISR, then can need not to carry out the MM that obtains said UE and the operation of PDP Context, thereby save the signaling in the Routing Area Update flow process.

2) said UE changes at the said second signaling reduction network equipment or the PDP Context on the said first signaling reduction network equipment, can adopt following mode to handle: the ISR between the said second signaling reduction network equipment of deexcitation and the said first signaling reduction network equipment; Or after said UE initiates the Routing Area Update request next time; In said Routing Area Update request, carry this PDP Context and change relevant information; The change that makes the first signaling reduction network equipment that receives this Routing Area Update request or the second signaling reduction network equipment can recognize this PDP Context, the said first signaling reduction network equipment again with the PDP Context of the second signaling reduction network equipment synchronous change.

Said UE does not remove the PDP Context of synchronous said change immediately after changing PDP Context on the said second signaling reduction network equipment or the first signaling reduction network equipment, can reduce the PDP Context synchronous signaling and the signaling consumption that produces.

3) network side has data need send to said UE, comprises following situation:

The second signaling reduction network equipment that has activated ISR for said UE sends to the downlink data of the said UE that is in Idle state from gateway device reception and buffer memory; Said second signaling reduction network equipment notice has activated the other end (like the first signaling reduction network equipment) of ISR for said UE, with the said second signaling reduction network equipment to said UE distributing paging; After any signaling reduction network equipment received the page response of UE in the said first signaling reduction network equipment and the second signaling reduction network equipment, the other end signaling reduction network equipment that notice does not receive page response stopped paging; The signaling reduction network equipment that receives page response is given said UE with said transfer of data;

Perhaps

The first signaling reduction network equipment that has activated ISR for said UE sends to the downlink data of the said UE that is in Idle state from gateway device reception and buffer memory; Notice has activated the other end (the second signaling reduction network equipment) of ISR for said UE, with the first signaling reduction network equipment to said UE distributing paging; After any signaling reduction network equipment received the page response of UE in the said first signaling reduction network equipment and the second signaling reduction network equipment, the other end signaling reduction network equipment that notice does not receive page response stopped paging; The signaling reduction network equipment that receives page response is given said UE with said transfer of data.

The said signaling reduction network equipment that receives page response comprises to said UE said transfer of data:

If receiving the signaling reduction network equipment of page response is the signaling reduction network equipment of the said data of buffer memory, the then said signaling reduction network equipment foundation of page response and the data channel between the UE of receiving given said UE with said transfer of data; If receiving the signaling reduction network equipment of page response is the signaling reduction network equipment of the said data of non-buffer memory; Then at the signaling reduction network equipment that receives page response and do not receive simultaneous user's between the signaling reduction network equipment of page response block data protocol context; Foundation receives the signaling reduction network equipment of page response and does not receive data forwarding tunnel between the signaling reduction network equipment of page response; Data in buffer is transferred to the signaling reduction network equipment that receives page response; And set up the said signaling reduction network equipment of page response and the data forwarding tunnel between institute's gateway device of receiving; The said signaling reduction network equipment foundation of page response and the data channel between the UE of receiving given said UE with said transfer of data.

Activating the both sides signaling reduction LA Management Room of ISR; Receive the downlink data that need be handed down to UE if any a side signaling reduction network equipment; Then can notify opposite side signaling reduction network equipment paging simultaneously UE; Confirming the position at UE place, and receive the user at a side signaling reduction network equipment and respond the back notice opposite side signaling reduction network equipment and stop paging, avoid invalid wait.

4) said UE initiates the Routing Area Update request to Third Road by the 3rd signaling reduction network equipment in district; And the network formats that said Third Road is supported by the district is different from the network formats that said secondary route district supports; Then the second signaling reduction network equipment is notified the ISR that has activated for said UE between the said first signaling reduction network equipment of the said first signaling reduction network equipment deexcitation and the second signaling reduction network equipment, and between the said second signaling reduction network equipment and said the 3rd signaling reduction network equipment, consults to activate ISR for said UE;

Perhaps; At UE before the said second signaling reduction network equipment is initiated the Routing Area Update request; If the said first signaling reduction network equipment and Third Road are by having activated ISR (Third Road is different from the network formats that the said first via is supported by the district by the network formats of district's support) for said UE between the 3rd signaling reduction network equipment in district; Then at UE after the said second signaling reduction network equipment is initiated the Routing Area Update request; The first signaling reduction network equipment is notified between the said first signaling reduction network equipment of the 3rd signaling reduction network equipment deexcitation and the 3rd signaling reduction network equipment and has been activated ISR for said UE, and said the 3rd signaling reduction network equipment is deleted MM and the PDP Context of said UE.

5) said UE initiates the routing update request to the 4th signaling reduction network equipment in the 4th route district; And the network formats that said the 4th route district supports is identical with the network formats that said secondary route district supports, then the second signaling reduction network equipment is notified the ISR that has activated for said UE between the said first signaling reduction network equipment of the said first signaling reduction network equipment deexcitation and the second signaling reduction network equipment.Perhaps; Receive the MM and PDP Context request of the said UE that the 4th signaling reduction network equipment in the 4th route district sends at the said second signaling reduction network equipment after; Notify the ISR between the said first signaling reduction network equipment of the said first signaling reduction network equipment deexcitation and the said second signaling reduction network equipment, the said first signaling reduction network equipment is deleted MM and the PDP Context of said UE.

To the above-mentioned the 4th), 5) point; Because at two signaling reduction LA Management Rooms; Activate ISR like the first signaling reduction network equipment and the second signaling reduction LA Management Room and initiate the Routing Area Update flow process repeatedly and the signaling traffic load that produces at the first signaling reduction network equipment and the second signaling reduction LA Management Room for fear of UE; And when UE after the 3rd signaling reduction network equipment is initiated the Routing Area Update flow process; Explain that the situation that UE initiates the signaling traffic load that Routing Area Update produces repeatedly at the said first signaling reduction network equipment and the second signaling reduction LA Management Room does not exist; Therefore can the said first signaling reduction network equipment of deexcitation and the ISR of the said second signaling reduction LA Management Room; It is understandable that UE can consult to activate ISR according to actual conditions once more when the said first signaling reduction network equipment and the second signaling reduction LA Management Room are initiated the Routing Area Update flow process once more next time.

6) initiate user's separation process; Comprise that the initiation of network depositing equipment, the first signaling reduction network equipment or the second signaling reduction network equipment are initiated or UE itself initiates;

User's separation process of situation initiate to(for) the network depositing equipment comprises following operation:

The said second signaling reduction network equipment and the said first signaling reduction network equipment receive the user's disassociation notification to said UE that the network depositing equipment sends; Initiate paging to said UE; In the said second signaling reduction network equipment and the said first signaling reduction network equipment any notifies another signaling reduction network equipment that does not receive page response to stop paging after receiving page response, and the said local resource that discharges of the signaling reduction network equipment that does not receive page response.Promptly when the network depositing equipment was initiated user's separation process, notice activated the two ends signaling reduction network equipment execution user lock out operation of ISR simultaneously.

User's separation process of situation initiate to(for) UE comprises following operation:

If the said second signaling reduction network equipment receives user's detach request that said UE sends, notify the said first signaling reduction network equipment implicit detach user, promptly need be not mutual with UE, directly discharge local resource; Or

If the said first signaling reduction network equipment receives user's detach request that said UE sends, notify the said second signaling reduction network equipment implicit detach user, promptly need be not mutual with UE, directly discharge local resource.

Situation for the first signaling reduction network equipment or second signaling reduction network equipment initiation user separation process comprises following operation:

The said second signaling reduction network equipment is initiated the user's separation process to said UE, notifies the said first signaling reduction network equipment to initiate paging with the said second signaling reduction network equipment to said UE; In the said second signaling reduction network equipment and the said first signaling reduction network equipment any notifies another signaling reduction network equipment that does not receive page response to stop paging after receiving page response;

Or

The said first signaling reduction network equipment is initiated the user's separation process to said UE, notifies the said second signaling reduction network equipment to initiate paging with the said first signaling reduction network equipment to said UE; In the said second signaling reduction network equipment and the said first signaling reduction network equipment any notifies another signaling reduction network equipment that does not receive page response to stop paging after receiving page response.

When promptly activating in the two ends signaling reduction network equipment of ISR any and initiating user's separation process, can notify the other end signaling reduction network equipment to carry out user's lock out operation simultaneously.

The embodiment of the invention is consulted to activate ISR and informing network depositing equipment for said UE by the signaling reduction LA Management Room; Negotiations process need not the participation of UE; Just need not to change existing UE equipment; Strong with the compatibility of existing network, be easy to realize, and effectively improve the signaling traffic load problem that the invalid RAU between different network formats brings.

Being applied under GPRS and the UTMS network formats with the said signaling reduction method of the embodiment of the invention below is that example is elaborated, as shown in Figure 2, comprises the steps:

Step 20: the 2nd SGSN in secondary route district receives the Routing Area Update request that UE sends;

Step 21: judge that said UE initiates the 2nd SGSN and UE behind the Routing Area Update and initiates the first via before the Routing Area Update by whether being that said UE has activated ISR between the SGSN who distinguishes;

Said secondary route district supports the GPRS network standard, and the said first via is supported the UTMS network formats by the district, and just the first via before the Routing Area Update is different by the network formats of the secondary route district support behind district and the Routing Area Update.

If be not that said UE activates ISR, then execution in step 22; If activated ISR for said UE, then execution in step 23;

Step 22: the 2nd SGSN and a said SGSN consult to activate ISR for said UE; And after consulting to confirm as said UE activation ISR; Notice HLR writes down the information that said UE registers and is recorded as the information that UE activates ISR on a SGSN and said the 2nd SGSN, execution in step 23 afterwards;

Said the 2nd SGSN and a said SGSN consult to comprise for the process of said UE activation ISR:

Said the 2nd SGSN sends the SGSN context request message and gives a said SGSN; Ask MM and the PDP Context of said UE; Carry first in the said SGSN context request message and support the ISR sign, and the value of this first support ISR sign is the value of predetermined expression requesting activation ISR; For the old SGSN that does not upgrade with existing network compatible; In the SGSN context request message that said the 2nd SGSN sends, increase by one and support the ISR sign; Like ISR_Supported; If do not carry this first support ISR sign in the SGSN context request message, represent that then said the 2nd SGSN does not possess the ISR ability, does not consult to activate ISR; Support the ISR sign if carry first in the SGSN context request message, and should support the value of ISR sign value for predetermined expression requesting activation ISR, for example value is 1, representes that then said the 2nd SGSN possesses the ISR ability, consults to activate ISR; Support the ISR sign if carry in the SGSN context request message, and this first supports ISR sign value to be the predetermined expression value of requesting activation ISR not, for example value is 0, representes that then SGSN possesses the ISR ability, does not consult to activate ISR;

Said the 2nd SGSN receives the SGSN context response information that a said SGSN sends; Carry MM and the PDP Context of said UE in the said SGSN context response information and carry second and support ISR sign and value can activate the value of ISR for predetermined expression, for example value is 1;

The information of in said the 2nd SGSN and a said SGSN, preserving MM and the PDP Context of said UE simultaneously and activating ISR for UE;

Said the 2nd SGSN sends the location update request message of carrying ISR activation sign and gives HLR; Make said HLR confirm as said UE and activated ISR according to this ISR activation sign; Writing down information and the information that is recorded as UE activation ISR, no longer the route district of an execution and the said SGSN cancellation flow process that said UE registers on the said HLR on a SGSN and said the 2nd SGSN.

Carry through whether and to support the ISR sign to guarantee the compatibility with the existing network network element in SGSN context request message or SGSN context response information; Consult to activate to carry in the ISR process and support the ISR sign; For discerning this support ISR sign but because the other reasons refusal activates the equipment (the not old network equipment of upgrading) that ISR perhaps not discerns this sign; ISR will can not set up owing to consulting failure, not receive whether to have the restriction of ISR ability between the network element in the intercommunication.

Step 23: said the 2nd SGSN replys Routing Area Update and accepts message to said UE;

The described signaling reduction method of the embodiment of the invention is that UE activates ISR by consulting between the SGSN; And consulting successfully back notice HLR; This process only need be revised the signaling process of network side, need not make any modification to a large amount of 2G/3G terminal of existing network, and not rely on the shuffling sub-district; Do not require that SGSN supports 2G and 3G simultaneously, has effectively reduced the network side signaling traffic load yet.

For further understanding the present invention, the example that has particular application as with embodiment of the invention signaling reduction method is elaborated below.

RAT1 and RAT2 represent two kinds of network formats respectively in the following instance, and for example RAT1 is the GPRS of 2G, and RAT2 is the UTMS of 3G; In addition, the SGSN1 of RAT1 refers to that this SGSN1 supports RAT1, whether does not support RAT2 but do not limit SGSN1, and promptly whether the embodiment of the invention does not limit SGSN and support 2G and 3G to build jointly, and in like manner the SGSN2 of RAT2 representes SGSN2 support RAT2.As shown in Figure 3, the described signaling reduction flow process of this instance comprises the steps:

The SGSN2 that step 30:UE is moved to RAT2 from the SGSN1 of RAT1 sends Routing Area Update request message RAU Request to SGSN2;

On the SGSN1 attached to RAT1 before the UE migration, behind the SGSN2 of moving to RAT2, need to initiate the RAU flow process.It is understandable that the situation of initiating RAU here is not limited to UE and moves, and also can comprise the situation that other need initiate RAU.

Step 31: network equipment is consulted to this UE activates ISR, and after consulting to confirm as said UE activation ISR, notifies said SGSN2 of HLR and SGSN1 to activate ISR for said UE;

Network equipment is consulted to activate ISR and notify the detailed process of HLR to comprise following substep for this UE:

Step 310:SGSN2 sends message SGSN Context Request to SGSN1, the MM of the said UE of acquisition request and PDP Context;

Can carry the ISR_Supported cell among the said SGSN Context Request, if carry this ISR_Supported cell, and ISR_Supported cell value is 1, and expression SGSN2 possesses ISR ability, requesting activation ISR; If carry this ISR_Supported cell, and ISR_Supported cell value is 0, representes that then SGSN2 possesses the ISR ability, this time flow process requesting activation ISR not; When not carrying this cell, expression SGSN2 does not possess the ISR ability, can not activate ISR; The implication that ISR_Supported cell value described herein is 1 or 0 representative is merely an embodiment of the present invention, and concrete value is not limited thereto in the practical operation.

Step 311:SGSN2 receives the SGSN Context Response message that SGSN1 replys, and comprises MM and the PDP Context of said UE in the SGSNContext Response message;

Said SGSN Context Response message can be carried the ISR_Supported cell, and when not carrying this ISR_Supported cell, expression SGSN1 does not possess the ISR ability, can not activate ISR; If carry this ISR_Supported cell, and ISR_Supported cell value is 1, representes that then SGSN1 possesses the ISR ability, and negotiation can be set up ISR; If carry this cell, and ISR_Supported cell value is 0, and expression SGSN1 possesses the ISR ability, and this time flow process is not set up ISR.The implication that ISR_Supported cell value described herein is 1 or 0 representative is merely an embodiment of the present invention, and concrete value is not limited thereto in the practical operation.

All remain with MM and the PDP Context of said UE this moment on SGSN2 and SGSN1, and write down for this reason that UE has activated ISR.

Step 312:SGSN2 sends Update Location message to HLR, will carry ISR in the said Update Location message and activate sign ISR_Activated;

Step 313:HLR detects in the said Update Location message and carries ISR_Activated; Then HLR does not implement the Cancel Location flow process of SGSN1; Writing down the information that said UE registers on this HLR on SGSN1 and SGSN2; And write down for this UE has activated ISR, and reply Update Location ACK to said SGSN2;

Be outstanding the present invention, omitted steps such as inserting user data between HLR and the SGSN2 among the figure.

After said SGSN2 receives said Routing Area Update request; Can distribute P-TMSI and RAI for said UE; To be called P-TMSI2 and RAI2 by P-TMSI and the RAI that SGSN2 distributes in the present embodiment; Be after said UE activates ISR, said SGSN2 will give SGSN1 synchronously for P-TMSI2 and the RAI2 that said UE distributes, and on SGSN1 and SGSN2, can preserve the corresponding relation of P-TMSI+RAI and user index.

Step 32:SGSN2 replys Routing Area Update and accepts message RAU Accept to UE, carries P-TMSI2+RAI2 in the RAUAccept message, accomplishes this RAU flow process.

Following situation might take place at SGSN1 and SGSN2 after said UE activates ISR in the embodiment of the invention, and following several kinds of situation do not have the sequencing restriction:

1) UE initiates the RAU flow process from the SGSN1 that the SGSN2 of RAT2 moves back RAT1;

After UE moves back the SGSN1 of RAT1 from the SGSN2 of RAT2; It is inconsistent that UE detects the route district at RAI2 and current place of self storage; Then UE initiatively initiates the routing area updating RAU flow process; Promptly send Routing Area Update request RAU Request to network side, the SGSN1 of network side locatees concrete UE according to the P-TMSI+RAI of storage and the corresponding relation of user index, has activated ISR when detecting for this UE; Explain that then SGSN1 inside preserves MM and the PDP Context of this UE; And HLR is last to have write down the information that UE registers on SGSN1 and SGSN 2, then do not need to obtain relevant information to SGSN2, also will not initiate the flow process to the Update of HLR Location; Accept message RAU Accept but directly reply Routing Area Update, carry in the RAU Accept message that SGSN1 is the P-TMSI1+RAI1 that said UE distributes in this RAU flow process) to UE.

In this process owing to activated ISR for UE; Therefore saved between the network side SGSN and the signaling between SGSN and the HLR; Just SGSN1 has activated under the situation of ISR for UE recognizing, need not to carry out the operation of obtaining MM and the PDP Context of said UE to SGSN2, has saved the signaling of obtaining MM and PDP Context process; And need not to initiate more new technological process of position to HLR, saved the more signaling of new technological process of position.

2) UE changes at the PDP Context of SGSN2 or SGSN1;

When UE at a side RAT network, after for example the SGSN2 of RAT2 has changed relevant PDP Context, set up between the network of ISR mechanism, for example active synchronization PDP Context not between SGSN2 and the SGSN1; Can select deexcitation ISR, after perhaps waiting until UE for example RAT1 initiating RAU from opposite side RAT network (not changing that side RAT network of PDP Context), carry out again PDP Context synchronously.Can avoid change like this, and all go in real time synchronously the context synchronous signaling expense that is increased at every turn to the both sides network of setting up ISR mechanism owing to PDP Context.

3) after ISR activates, carry out user's separation process;

After ISR activated, HLR initiated user's separation process, and the HLR notice promptly notifies SGSN1 and SGSN2 to carry out user's separation process respectively for the both sides SGSN that UE has activated ISR; If UE is connected state under this SGSN2, then SGSN2 need notify opposite end SGSN (for example SGSN1) the local resource that discharges, and need not wait for UE mutual; If SGSN is in Idle state to UE in both sides at this moment; Then both sides SGSN is that SGSN1 and SGSN2 carry out the paging flow process respectively, initiates paging to said UE, receives the SGSN (for example SGSN1) of UE page response; Notice opposite side SGSN (for example SGSN2); Stop paging, and require the local resource that discharges of its (SGSN2), need not wait for mutual with UE;

4) after UE gets into the IDLE attitude, there is downlink data need be transferred to said UE;

After UE got into the IDLE attitude, when having downlink data to be transferred to UE as if GGSN, downlink data can be buffered in earlier on the SGSN that receives this downlink data, for example SGSN2; This SGSN2 is found to be this UE and has activated ISR mechanism, and UE is in Idle state, need other end SGSN1 that notice activates ISR with this side SGSN2 to the UE distributing paging; After any side SGSN receives the page response of UE, all will notify opposite side SGSN to stop paging; If the SGSN2 of buffer memory downlink data receives the page response of UE, then rebuild and eat dishes without rice or wine to connect, recover end to end data transmission tunnel and carry out transfer of data; If opposite side SGSN (like SGSN1) receives the page response of said UE; Then need be on the PDP Context of synchronous said UE between SGSN1 and the SGSN2 and SGSN2 data in buffer; Set up the data forwarding tunnel between SGSN1 and the GGSN; And the connection of eating dishes without rice or wine of setting up SGSN1, carry out transfer of data again;

5) between the SGSN2 of the SGSN1 of RAT1 and RAT2 for after UE activates ISR, UE moves to the SGSN3 of RAT2 from the SGSN2 of RAT2, perhaps UE moves to the SGSN4 of RAT1 from the SGSN1 of RAT1;

As UE owing to move once more, after having changed SGSN under the same RAT, with the ISR between the SGSN2 of the SGSN1 of deexcitation RAT1 and RAT2;

Concrete deactivating operation can comprise: if UE moves to the SGSN3 of RAT2 from the SGSN2 of RAT2, then can notify SGSN1 deexcitation ISR by SGSN2, SGSN1 deletes said UE corresponding MM and PDP Context; Perhaps, if UE moves to the SGSN4 of RAT1 from the SGSN1 of RAT1, then can notify SGSN2 deexcitation ISR by SGSN1, SGSN2 deletes said UE corresponding MM and PDP Context.

6) between the SGSN2 of the SGSN1 of RAT1 and RAT2 for after UE activates ISR, UE moves to the SGSN3 of RAT1 from the SGSN2 of RAT2, perhaps UE moves to the SGSN4 of RAT2 from the SGSN1 of RAT1;

As UE owing to move once more, after having changed SGSN under the different RAT, with the ISR between the SGSN2 of the SGSN1 of deexcitation RAT1 and RAT2; Simultaneously, can be between the SGSN3 of the SGSN2 of RAT2 and RAT1 according to actual conditions (if SGSN3 or SGSN4 have the ISR ability), or consult once more between the SGSN4 of the SGSN1 of RAT1 and RAT2 to activate ISR for said UE.

The embodiment of the invention also provides a kind of signaling reduction network equipment, and to be example shown in Fig. 4, this signaling reduction equipment comprises:

First receiving element 400 is used to receive the Routing Area Update request that UE sends;

ISR activates unit 401; Be used for activating under the ISR situation between the first signaling reduction network equipment before this signaling reduction network equipment and this Routing Area Update of said UE initiation for said UE; Consult to activate ISR with the said first signaling reduction network equipment for said UE; And after consulting to confirm as said UE activation ISR, informing network depositing equipment this signaling reduction network equipment and the said first signaling reduction network equipment are that said UE has activated ISR; The network formats that the route district at said first signaling reduction network equipment place supports is different from the network formats of the route district support at this signaling reduction network equipment place.

As shown in Figure 5, said ISR activates unit 401 and may further include:

First sends subelement 4011, is used to send the context request message of carrying the first support ISR sign; Said first supports the value of ISR sign to comprise the value of expression requesting activation ISR or represent the not value of requesting activation ISR;

First receives subelement 4012, is used to receive the context response information of carrying the second support ISR sign; Said second supports the value of ISR sign to comprise that expression allows to activate the value of ISR or the value that expression does not allow to activate ISR.

Said ISR activates unit 401 and can also comprise:

Storing sub-units 4013, the information that is used to store the context of UE and activates ISR for UE; Whether said information for UE activation ISR is that UE has activated ISR promptly;

Second sends subelement 4014; The first support ISR sign value that is used for carrying in said context request message is for representing the value of requesting activation ISR; And the value that the second support ISR that carries in the said context response information identifies is for allowing to activate under the value situation of ISR, and transmission is carried the location update request message of ISR activation sign and given the network depositing equipment.

As shown in Figure 6, said signaling reduction equipment can also comprise:

Allocation units 402 are used for after said first receiving element 400 receives the Routing Area Update request of said UE, are said UE allocation packets territory Temporary Mobile Station Identity and Tracking Area Identifier;

Lock unit 403 is used for after consulting to confirm as said UE activation ISR, giving the said first signaling reduction network equipment synchronously with packet domain Temporary Mobile Station Identity and Tracking Area Identifier that said allocation units 402 distribute.

As shown in Figure 7, said signaling reduction equipment can also comprise:

Deexcitation unit 404 is used for the said ISR of deexcitation.

As shown in Figure 8, said signaling reduction equipment can also comprise:

Buffer unit 405 is used for the downlink data that buffer memory sends to the said UE that is in Idle state;

First notification unit 406 is used to notify the said first signaling reduction network equipment that has activated ISR for said UE, with this signaling reduction network equipment to said UE distributing paging;

Paging unit 407 is used for to said UE distributing paging;

Second receiving element 408 is used to receive the page response of said UE;

Second notification unit 409 is used for after said second receiving element 408 receives page response, and the said first signaling reduction network equipment that notice does not receive page response stops paging;

Data transmission unit 410 is used for said buffer unit 405 data in buffer are transferred to said UE.

As shown in Figure 9, said signaling reduction equipment can also comprise:

The 3rd advice note unit 411 is used to notify the said first signaling reduction network equipment that activates ISR with this signaling reduction network equipment, carries out user's lock out operation simultaneously with this signaling reduction network equipment;

The described signaling reduction network equipment of present embodiment can be the SGSN in 2G or the 3G network.

The described signaling reduction equipment of present embodiment consults to activate ISR for the terminal under the situation that does not need the terminal to participate in; Effectively reduced the network burden of initiating a large amount of RAU flow processs when UE moves back and forth and producing between two kinds of various network standards; Realize easy, compatible strong with existing network.

Further embodiment of this invention provides a kind of network depositing equipment, and to be example shown in Figure 10, said network depositing equipment comprises:

The 3rd receiving element 100 is used to receive the location update request message of carrying ISR activation sign;

Memory cell 101 is used for being stored as UE according to said ISR activation sign and has activated the UE information of registering on the two ends signaling reduction network equipment of ISR, and activates the information of ISR for UE.

This network depositing equipment can further include:

Four-way notice of invitation unit 102 is used for notifying simultaneously the two ends signaling reduction network equipment that activates ISR to initiate user's lock out operation.

The described network depositing equipment of present embodiment comprises the HLR in 2G or the 3G network.

The described network depositing equipment of present embodiment can receive the location update request message of carrying ISR activation sign; Do not carry out route district cancellation flow process; Promptly save as UE simultaneously and activated the UE information of registering on the two ends signaling reduction network equipment of ISR, and activate the information of ISR for UE.

The embodiment of the invention provides a kind of signaling reduction system, and is shown in figure 11, comprising: the first signaling reduction network equipment 110, the second signaling reduction network equipment 111 and network depositing equipment 112;

The said first signaling reduction network equipment 110 is positioned at the first via by the district, is the signaling reduction network equipment before this Routing Area Update of UE initiation;

The said second signaling reduction network equipment 111 is positioned at the secondary route district; Be used for after the Routing Area Update request that receives said UE transmission; Be not that said UE activates under the Idle state under the signaling reduction ISR situation between the said first signaling reduction network equipment 110 and the said second signaling reduction network equipment 111; Consult to activate ISR with the said first signaling reduction network equipment 110 for said UE; And after consulting to confirm as said UE activation ISR; The said second signaling reduction network equipments 111 of informing network depositing equipment 112 and said first are practiced thrift the network equipment 110 and have been activated ISR for said UE, and the network formats that wherein said secondary route district supports is different from the network formats of the said first via by district's support;

Said network depositing equipment 112; Be used to receive the notice of the said second signaling reduction network equipment 111, write down the information of said UE registration on the first signaling reduction network equipment 110 and the said second signaling reduction network equipment 111 and be recorded as the information that UE activates ISR.

Described in the structure above embodiment of the said second signaling reduction network equipment 111, repeat no more here.

The said first signaling reduction network equipment 110 can be the SGSN among GPRS or the UMTS with the said second signaling reduction network equipment 111; Said network depositing equipment can be the HLR of UE described in GPRS or the UMTS.

In sum; The embodiment of the invention has effectively reduced the network burden of initiating a large amount of RAU flow processs when move back and forth at the terminal and producing between two kinds of various network standards, and this technology need not to change existing terminal, and is compatible strong with existing network; And do not rely on the shuffling sub-district, be easy to realize.

One of ordinary skill in the art will appreciate that realize that all or part of step in the foregoing description method is to instruct relevant hardware to accomplish through program, described program can be stored in a kind of computer-readable recording medium.

The above; Be merely the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.

Claims

1. a signaling reduction method is characterized in that, comprising:

If the first via that the said second signaling reduction network equipment and said UE initiate before this Routing Area Update is not that said UE activates signaling reduction ISR under the Idle state by the first signaling reduction network equipment of distinguishing; The then said second signaling reduction network equipment and the said first signaling reduction network equipment are consulted to activate ISR for said UE; And after confirming as said UE activation ISR, the said second signaling reduction network equipment of informing network depositing equipment and the said first signaling reduction network equipment are that said UE has activated ISR; The network formats that said secondary route district supports is different from the network formats that the said first via is supported by the district.

2. the method for claim 1 is characterized in that, the said second signaling reduction network equipment and the said first signaling reduction network equipment are consulted to comprise for said UE activates ISR:

The said second signaling reduction network equipment sends context request message and gives the said first signaling reduction network equipment, carries first in the said context request message and supports the ISR sign;

Receive the context response information that the said first signaling reduction network equipment sends, carry second in the said context response information and support the ISR sign.

3. method as claimed in claim 2 is characterized in that, also comprises:

The value of the first support ISR sign of carrying in the said context request message allows the value of activation ISR for the value of expression requesting activation ISR, the value that the second support ISR that carries in the said context response information identifies for expression; The then said second signaling reduction network equipment and the said first signaling reduction network equipment are consulted to confirm as said UE and are activated ISR, in the said second signaling reduction network equipment and the said first signaling reduction network equipment, preserve the context of said UE simultaneously and are the information of UE activation ISR; Or

The value of the first support ISR sign of carrying in the said context request message does not allow to activate the value of ISR for the value of expression requesting activation ISR, the value that the second support ISR that carries in the said context response information identifies for expression; The then said second signaling reduction network equipment and the said first signaling reduction network equipment consult to confirm not to be that said UE activates ISR; Or

The value of the first support ISR sign of carrying in the said context request message is to represent the not value of requesting activation ISR, and the value of the second support ISR sign of carrying in the said context response information is for representing not allow to activate the value of ISR; The then said second signaling reduction network equipment and the said first signaling reduction network equipment consult to confirm not to be that said UE activates ISR.

4. the method for claim 1 is characterized in that, and is said after confirming as said UE and activating ISR, and the said second signaling reduction network equipment of informing network depositing equipment and the said first signaling reduction network equipment are that said UE has activated ISR and comprises:

The said second signaling reduction network equipment sends the location update request message of carrying ISR activation sign and gives the network depositing equipment;

Said network depositing equipment activates sign according to this ISR and confirms that the said second signaling reduction network equipment and the said first signaling reduction network equipment are that said UE has activated ISR, information of on the first signaling reduction network equipment and the said second signaling reduction network equipment, registering at the said UE of record on the said network depositing equipment and the information that is recorded as UE activation ISR.

5. like each described method in the claim 1 to 4, it is characterized in that the said second signaling reduction network equipment and the said first signaling reduction network equipment are consulted also to comprise for behind the said UE activation ISR:

The said second signaling reduction network equipment will be given the said first signaling reduction network equipment synchronously for packet domain Temporary Mobile Station Identity and Tracking Area Identifier that said UE distributes.

6. like each described method in the claim 1 to 4, it is characterized in that, also comprise:

The second signaling reduction network equipment that has activated ISR for said UE sends to the downlink data of the said UE that is in Idle state from gateway device reception and buffer memory;

Notice has activated the first signaling reduction network equipment of ISR for said UE, with the said second signaling reduction network equipment to said UE distributing paging;

After any signaling reduction network equipment received the page response of UE in the said first signaling reduction network equipment and the second signaling reduction network equipment, another signaling reduction network equipment that notice does not receive page response stopped paging;

The signaling reduction network equipment that receives page response is given said UE with said transfer of data;

Perhaps

The first signaling reduction network equipment that has activated ISR for said UE sends to the downlink data of the said UE that is in Idle state from gateway device reception and buffer memory;

Notice has activated the second signaling reduction network equipment of ISR for said UE, with the first signaling reduction network equipment to said UE distributing paging;

Wherein, the said signaling reduction network equipment that receives page response comprises to said UE said transfer of data:

If receiving the signaling reduction network equipment of page response is the signaling reduction network equipment of the said data of buffer memory, the then said signaling reduction network equipment foundation of page response and the data channel between the UE of receiving given said UE with said transfer of data;

If receiving the signaling reduction network equipment of page response is the signaling reduction network equipment of the said data of non-buffer memory; Then at the signaling reduction network equipment that receives page response and do not receive simultaneous user's between the signaling reduction network equipment of page response block data protocol context; Foundation receives the signaling reduction network equipment of page response and does not receive data forwarding tunnel between the signaling reduction network equipment of page response; Data in buffer is transferred to the signaling reduction network equipment that receives page response; And set up the said signaling reduction network equipment of page response and the data forwarding tunnel between institute's gateway device of receiving; The said signaling reduction network equipment foundation of page response and the data channel between the UE of receiving given said UE with said transfer of data.

7. a signaling reduction network equipment is characterized in that, comprising:

ISR activates the unit; The first signaling reduction network equipment that is used for before this signaling reduction network equipment and said UE initiate this Routing Area Update activates under the Idle state under the signaling reduction ISR situation for said UE; Consult to activate ISR with the said first signaling reduction network equipment for said UE; And after consulting to confirm as said UE activation ISR, informing network depositing equipment this signaling reduction network equipment and the said first signaling reduction network equipment are that said UE has activated ISR; The network formats that the route district at said first signaling reduction network equipment place supports is different from the network formats of the route district support at this signaling reduction network equipment place.

8. equipment as claimed in claim 7 is characterized in that, said ISR activates the unit and further comprises:

First sends subelement, is used to send the context request message of carrying the first support ISR sign; Said first supports the value of ISR sign to comprise the value of expression requesting activation ISR or represent the not value of requesting activation ISR;

First receives subelement, is used to receive the context response information of carrying the second support ISR sign; Said second supports the value of ISR sign to comprise that expression allows to activate the value of ISR or the value that expression does not allow to activate ISR.

9. equipment as claimed in claim 8 is characterized in that, said ISR activates the unit and further comprises:

Second sends subelement; The first support ISR sign value that is used for carrying in said context request message is for representing the value of requesting activation ISR; And the value that the second support ISR that carries in the said context response information identifies is for allowing to activate under the value situation of ISR, and transmission is carried the location update request message of ISR activation sign and given the network depositing equipment.

10. like claim 7 or 8 described equipment, it is characterized in that, also comprise:

Allocation units are used for after said first receiving element receives the Routing Area Update request of said UE, are said UE allocation packets territory Temporary Mobile Station Identity and Tracking Area Identifier;

Lock unit is used for after consulting to confirm as said UE activation ISR, giving the said first signaling reduction network equipment synchronously with packet domain Temporary Mobile Station Identity and Tracking Area Identifier that said allocation units distribute.

11. like claim 7 or 8 described equipment, it is characterized in that, also comprise:

Buffer unit is used for the downlink data that buffer memory sends to the said UE that is in Idle state;

First notification unit is used to notify the said first signaling reduction network equipment that has activated ISR for said UE, with this signaling reduction network equipment to said UE distributing paging;

Paging unit is used for to said UE distributing paging;

Second receiving element is used to receive the page response of said UE;

Second notification unit is used for after said second receiving element receives page response, notifying the said first signaling reduction network equipment that does not receive page response to stop paging;

Data transmission unit is used for said buffer unit data in buffer is transferred to said UE.

12. a signaling reduction system is characterized in that, comprising: the first signaling reduction network equipment, the second signaling reduction network equipment and network depositing equipment;

The said second signaling reduction network equipment is positioned at the secondary route district; Be used for after the Routing Area Update request that receives said UE transmission; If being said UE, the said first signaling reduction network equipment and the said second signaling reduction network equipment do not activate signaling reduction ISR under the Idle state; Consult to activate ISR with the said first signaling reduction network equipment for said UE; And after confirming as said UE activation ISR, the said second signaling reduction network equipment of informing network depositing equipment and the said first signaling reduction network equipment are that said UE has activated ISR, and the network formats that wherein said secondary route district supports is different from the network formats that the said first via is supported by the district;

13. system as claimed in claim 12 is characterized in that, the said second signaling reduction network equipment comprises:

First receiving element is used to receive the Routing Area Update request that UE sends;

ISR activates the unit; The first signaling reduction network equipment that is used for before the second signaling reduction network equipment and said UE initiate this Routing Area Update activates under the Idle state under the signaling reduction ISR situation for said UE; Consult to activate ISR with the said first signaling reduction network equipment for said UE; And after confirming as said UE activation ISR, the informing network depositing equipment second signaling reduction network equipment and the said first signaling reduction network equipment are that said UE has activated ISR; The network formats that the route district at said first signaling reduction network equipment place supports is different from the network formats of the route district support at second signaling reduction network equipment place.

14. system as claimed in claim 13 is characterized in that, said ISR activates the unit and further comprises:

15. system as claimed in claim 14 is characterized in that, said ISR activates the unit and further comprises:

16. system as claimed in claim 12; It is characterized in that the said first signaling reduction network equipment and the said second signaling reduction network equipment are service universal grouping wireless business supporting node SGSN among general packet radio service gprs or the conventional wireless communication systems UMTS; Said network depositing equipment is the attaching position register of UE described in GPRS or the UMTS.