CN105848216A - Overload processing method for wireless communication system, and access network equipment - Google Patents

Abstract

The invention discloses an overload processing method for a wireless communication system, and access network equipment. The wireless communication system comprises first access network equipment, second access network equipment, and a mobile management entity (MME), wherein the second access network equipment is connected to the MME through the first access network equipment. A specific embodiment of the overload processing method for the wireless communication system comprises the following steps: the first access network equipment receives first overload information from the MME, wherein the first overload information comprises information related to the fact that the MME starts to be overloaded or that a public land mobile network (PLMN) under the MME starts to be overloaded; second overload information is sent to the second access network equipment according to the first overload information. The method disclosed by the embodiment of the invention has the advantage that an overload processing scheme is provided for the access network equipment not directly connected to the MME.

Description

Overload processing method and access network equipment for wireless communication system

Technical field

The application relates to communication technical field, is specifically related to wireless communication technology field, especially relates to And it is used for overload processing method and the access network equipment of wireless communication system.

Background technology

Present mobile communication increasingly trends towards providing the user the multimedia industry of high rate data transmission Business.Fig. 1 be System Architecture Evolution (System Architecture Evolution, SAE) be System Organization Chart.In Fig. 1, subscriber equipment (User Equipment, UE) 101 is to support net The terminal unit of network agreement.Evolved universal terrestrial radio access network (E-UTRAN) 102 is Radio Access Network, (strengthens including providing the base station accessing radio network interface for UE Type node B (eNodeB) or node B (NodeB)).Mobile management entity (Mobility Management Entity, MME) 103 it is responsible in the mobile context of UE, session Hereafter and safety information.Gateway (Serving Gateway, SGW) 104 mainly provides The function of user plane, MME 103 and SGW 104 is likely to be at Same Physical entity.Point Group data network gateway (Packet Data Network Gateway, PGW) 105 be responsible for charging, The functions such as Lawful Interception, it is also possible to be in Same Physical entity with SGW 104.Strategy and charging Regulation function entity (Policy charging and rules function, PCRF) 106 provides clothes Business quality (Quality of Service, QoS) strategy and charging criterion.Universal packet wireless business Business supports that node (Serving GPRS Support Node, SGSN) 108 is that General Mobile leads to Communication system (Universal Mobile Telecommunications System, UMTS) is The transmission of data provides the apparatus for network node of route.Home subscriber server (Home Subscriber Server, HSS) 109 be UE local ownership subsystem, responsible protection includes The current location of subscriber equipment, the address of service node, user security information, subscriber equipment The user profile such as packet data content.

In the existing network architecture, evolved universal terrestrial radio access network (E-UTRAN) 102 also support multiple technologies framework, such as via node (Relay Node, RN) and alms giver The wireless access network that base station (Donor eNB, DeNB) is constituted；Or Home eNodeB (Home Node B, HeNB) wireless access network that constitutes.But, due to RN with pass through Home eNodeB Gateway (HeNB GW) connects the HeNB (the most indirectly connected HeNB) of MME The most do not have for UE select MME selection function (NAS Node Selection Function, NNSF), therefore when overload MME, RN or indirectly connected HeNB possibly cannot determine Load processes, thus causes going wrong.

Summary of the invention

In order to solve the problems referred to above, this application provides the overload for wireless communication system and process Method and access network equipment.

First aspect, this application provides a kind of overload processing method for wireless communication system, Wherein this system includes the first access network equipment, the second access network equipment and mobile management entity MME, the second access network equipment is connected to MME via the first access network equipment.The method bag Include: described first access network equipment receives the first overload messages from described MME, wherein said First overload messages include starting overload or public with under described MME with described MME Land mobile communication network network PLMN starts the information that overload is relevant；And described first access network Equipment, according to described first overload messages, sends second to described second access network equipment and crosses information carrying Breath.

In certain embodiments, described first overload messages or described second overload messages include with The next item down or multinomial: overload type instruction, PLMN mark, the whole world unique MME mark GUMMEI, PLMN access and stop instruction, PLMN to retain instruction and RRC release instruction.

In certain embodiments, the instruction of described overload type includes overload MME instruction or PLMN Overload instruction, described PLMN overload instruction represents that a PLMN is at the first access network equipment even Transship under or some MME of this PLMN of support connect or represent that a PLMN exists Transship under all MME of this PLMN of support that the first access network equipment connects.

In certain embodiments, the instruction of described PLMN overload includes that PLMN overburden portion indicates Or PLMN transships instruction entirely, wherein PLMN overburden portion represents that a PLMN is first Transship under or some MME of this PLMN of support that access network equipment connects, and PLMN entirely transships and represents this PLMN of support that a PLMN connects at the first access network equipment All MME under transship.

In certain embodiments, described according to described first overload messages, access to described second Net equipment sends the second overload messages and includes: when determining one according to described first overload messages PLMN transships entirely or PLMN full overload and overload action under the MME supported all are refused The radio resource control RRC allowing absolutely or not one or more reason is set up, and sends described second Overload messages, and described second overload messages include the letter that indicates the PLMN of described full overload Breath.

In certain embodiments, the information of the PLMN of the described full overload of described instruction includes following At least one: the mark of described PLMN, GUMMEI, described PLMN is accessed The instruction stoped and the information of overload type, wherein, the information instruction PLMN of described overload type Full overload, comprises the PLMN mark of full overload in GUMMEI.

In certain embodiments, described according to described first overload messages, access to described second Net equipment sends the second overload messages and includes: determine described first according to described first overload messages All MME that access network equipment connects transship the most entirely or under MME, full overload and overload are moved Make all refuse or do not allow the radio resource control RRC of one or more reason to set up；And send out Send described second overload messages, described second overload messages include following at least one: access resistance Only instruction, overload type instruction and the unique MME in the whole world identify GUMMEI, wherein transships class Type instruction MME transships entirely, and GUMMEI is the mark of the MME of full overload.

In certain embodiments, described according to described first overload messages, access to described second Net equipment sends the second overload messages and also includes: only when determining institute according to described first overload messages The all MME stating the first access network equipment connection transship or full overload and overload under MME entirely When action is all refused or do not allows the radio resource control RRC of one or more reason to set up, send out Send described second overload messages.

In certain embodiments, described first overload messages and described second overload messages include sending out The MME of raw overload specifically transships action message, or includes that the PLMN that overload occurs is special Fixed overload action message.

In certain embodiments, described first overload messages and described second overload messages include MME code MMEC, described MMEC are set to the distinctive MMEC of operator, PLMN Distinctive or the distinctive MMEC of PLMN list.

Second aspect, this application provides a kind of overload processing method for wireless communication system, Wherein this system includes the first access network equipment, the second access network equipment and mobile management entity MME, the second access network equipment is connected to MME via the first access network equipment.The method bag Include: described first access network equipment receives user equipment (UE) phase from described second access network equipment Pass information；Select MME according to described UE relevant information and judge whether described UE met Carry treatment conditions；And if it is satisfied, then perform overload to process operation.

In certain embodiments, described UE relevant information includes the Radio Resource control of described UE RRC connection establishment reason processed.

In certain embodiments, described overload treatment conditions include following arbitrary: according to UE phase Pass information be UE select MME be overload MME；The PLMN that UE selects is in basis Transship under the MME that described UE relevant information selects；The RRC connection establishment of described UE is former Because meeting the RRC connection establishment reason of refusal in overload action；And the RRC of described UE Connection establishment reason does not meets the RRC connection establishment reason only allowed in overload action.

In certain embodiments, described execution overload processes operation and includes one below: if root The MME selected according to described UE relevant information is the MME of overload, then according to described UE phase Pass information selects the MME of non-overloaded；If the PLMN that UE selects is according to described UE phase Transship under the MME that pass information selects, then select UE to select according to described UE relevant information The MME that PLMN does not transships under it；And if the RRC connection establishment of described UE is former Because meeting the reason of the RRC connection establishment of refusal in overload action or not meeting overload action In the RRC connection establishment reason that only allows, it indicates that described second access network equipment is to described The RRC connection of UE discharges.

In certain embodiments, indicate described second access network equipment that the RRC of described UE is connected Tap into row and be released through the realization of following arbitrary message: descending Non-Access Stratum NAS transmits message；With UE context release command message, wherein release cause indicates congested or load balancing location updating Requirement.

The third aspect, this application provides a kind of overload process side for wireless communication system Method, wherein said system includes the first access network equipment and mobile management entity MME, described First access network equipment is connected to described MME.Described method includes: described first access network Equipment receives each public land mobile communications network described MME from described MME The capacity information of PLMN or PLMN list；And described first access network equipment is according to user PLMN or the PLMN list that equipment UE selects capacity under different MME, according to In PLMN or PLMN list, between MME, the mode of load balancing is that UE selects MME.

In certain embodiments, described capacity information includes: the described PLMN under described MME Or the residue of PLMN list processes capacity；Or described PLMN under described MME or PLMN list take process capacity.

In certain embodiments, described process capacity is absolute capacity or relative capacity, Qi Zhongsuo State relative capacity and represent that the capacity of described PLMN or PLMN list under described MME is relative Other in the MME pond belonging to described MME support described PLMN or PLMN list MME under the capacity of described PLMN or PLMN list.

Fourth aspect, this application provides a kind of overload processing method for wireless communication system, Wherein said system includes the first access network equipment, the second access network equipment and mobile management entity MME, described second access network equipment is connected to described via described first access network equipment MME.Described method includes: described first access network equipment receives the first mistake from described MME Information carrying ceases；And described first access network equipment according to described first overload messages to satisfied overload The UE for the treatment of conditions performs overload and processes；Or, described second access network equipment is from described One access network equipment receives the second overload messages；And described second access network equipment is according to described Second overload messages perform overload to the UE of satisfied overload treatment conditions and process.

In certain embodiments, described first access network equipment is according to described first overload messages pair The UE meeting overload treatment conditions performs overload process or described second access network equipment according to institute State the second overload messages the UE execution overload process of satisfied overload treatment conditions is included: described When the first overload messages or the second overload messages instruction PLMN overload, according to following arbitrary judgement Whether UE meets overload treatment conditions, and the UE to satisfied overload treatment conditions, refuses it RRC connection request or release RRC connect: in radio resource control RRC is set up, UE Have selected the PLMN that overload occurs；And the RRC connection establishment reason of UE meets overload In the overload action of PLMN, refusal is set up or is not allowed the RRC connection establishment reason set up.

In certain embodiments, described first access network equipment is according to described first overload messages pair The UE meeting overload treatment conditions performs overload process or described second access network equipment according to institute State the second overload messages the UE execution overload process of satisfied overload treatment conditions is included: described First overload messages or described second overload messages instruction PLMN entirely transship or indicate PLMN to connect When entering to stop, perform following arbitrary: the RRC of the UE of the PLMN that have selected full overload is built Vertical, refuse its RRC connection request or discharge its RRC connection；The PLMN entirely transshipped is set It is set to non-reserved state；And the mark of the PLMN of full overload of going off the air.

In certain embodiments, described first access network equipment is according to described first overload messages pair The UE meeting overload treatment conditions performs overload process or described second access network equipment according to institute State the second overload messages the UE execution overload process of satisfied overload treatment conditions is included: work as institute State the first overload messages or described second overload messages instruction PLMN transships and the second mistake information carrying entirely In breath, the overload action of instruction is refusal or does not allow the RRC of one or more reason to set up, Arbitrary judge that whether UE meets overload treatment conditions according to following, and satisfied overload is processed The UE of condition, refuses its RRC connection request or release RRC connects: set up at RRC In, UE have selected the PLMN that full overload occurs；And the RRC connection establishment reason of UE Meet refusal or unallowed RRC connection establishment reason in overload action.

In certain embodiments, described first access network equipment is according to described first overload messages pair The UE meeting overload treatment conditions performs overload process or described second access network equipment according to institute State the second overload messages the UE execution overload process of satisfied overload treatment conditions is included: work as institute State the first overload messages or described second overload messages instruction MME entirely transships or indicates access resistance Time only, perform following arbitrary: refuse the RRC connection request of all UE；And it is wide in community Community is set in broadcasting and stops instruction.

In certain embodiments, described first access network equipment is according to described first overload messages pair The UE meeting overload treatment conditions performs overload process or described second access network equipment according to institute State the second overload messages the UE execution overload process of satisfied overload treatment conditions is included: work as institute State the first overload messages or described second overload messages instruction MME transships and all MME entirely Overload action be refusal or when the most not allowing the RRC of one or more reason to set up, refusal The RRC meeting the one or more reason sets up.

In certain embodiments, described method also includes: described first access network equipment is from first The MME that access network equipment is connected receives the MME that described first access network equipment is connected Correspondence relationship information with the PLMN that MME supports；Described second access network equipment is from described MME with MME that first access network equipment described first access network equipment of reception is connected props up The correspondence relationship information of the PLMN held.

In certain embodiments, the corresponding relation of the PLMN that described MME Yu MME supports Information includes following arbitrary: each MME code MMEC or each MME's is all The PLMN mark that the corresponding one group of MME of MMEC supports；Each MMEC under MME group mark Or the PLMN mark that the corresponding one group of MME of all MMEC of each MME supports；Each PLMN correspondence one group supports the MME code of the MME of this PLMN；Each PLMN is corresponding The MME group mark of one group of MME supporting this PLMN and MME code；Each PLMN The MME group mark and the one group of support that identify corresponding one group of MME supporting this PLMN should The MME code of the MME of PLMN；Each PLMN identifies corresponding one group and supports this PLMN MME MME group mark and each MME group mark corresponding one group support this PLMN MME code with the MME of this MME group；Each PLMN identifies corresponding one group of support should The MME code of the MME of PLMN and each MME code corresponding one group support this PLMN and The MME group mark of the MME of this MME code；The GUMMEI list that MME supports.

In certain embodiments, described first access network equipment is according to described first overload messages pair The UE meeting overload treatment conditions performs overload process or described second access network equipment according to institute State the second overload messages and the UE of satisfied overload treatment conditions is performed overload process, including: First overload messages or described second overload messages include the whole world unique MME mark During GUMMEI, according to described correspondence relationship information, it is judged that described first overload messages or described Second overload messages are instruction overload MME or indicate described MME to support one or many Individual PLMN transships on described MME；Based on judged result, to satisfied overload treatment conditions UE perform overload process.

5th aspect, this application provides a kind of overload processing method for wireless communication system, Wherein said system includes the first access network equipment, the second access network equipment and mobile management entity MME, described second access network equipment is connected to described via described first access network equipment MME, described method includes: described first access network equipment receives MME from described MME Share relevant information；And described first access network equipment shares relevant letter according to described MME Cease the UE to satisfied overload treatment conditions and perform overload process；Or, described second access network Equipment receives MME from described first access network equipment and shares relevant information；And described second Access network equipment shares the relevant information UE to satisfied overload treatment conditions according to described MME Execution overload processes.

In certain embodiments, described MME shares relevant information and includes following one or more: MME shares instruction；Share the MME code MMEC of MME；Share the MME of MME Group mark and MMEC.

In certain embodiments, described relevant information is shared to satisfied overload according to described MME The UE for the treatment of conditions performs overload and processes, including: there is sharing of overload when UE have selected When MME or UE have selected the PLMN that overload occurs that shared MME is supported, to full The UE of foot overload treatment conditions performs identical overload and processes.

6th aspect, this application provides a kind of overload processing method for wireless communication system, Wherein said system includes the first access network equipment, the second access network equipment and mobile management entity MME, described second access network equipment is connected to described via described first access network equipment MME.Described method includes: described second access network equipment is set up wireless with user equipment (UE) Resources control RRC connects；UE relevant information is sent to described first access network equipment；From institute State the first access network equipment and receive the instruction that the connection of the RRC to described UE discharges, wherein Described instruction is that described first access network equipment determines satisfied overload according to described UE relevant information Treatment conditions and send.

In certain embodiments, described UE relevant information includes that the RRC connection establishment of UE is former Cause.

In certain embodiments, described overload treatment conditions include following arbitrary: according to UE phase Pass information be UE select MME be overload MME；The PLMN that UE selects is in basis Transship under the MME that described UE relevant information selects；The RRC connection establishment of described UE is former Because meeting the RRC connection establishment reason of refusal in overload action；And the RRC of described UE Connection establishment reason does not meets the RRC connection establishment reason only allowed in overload action.

7th aspect, this application provides a kind of first access network equipment, and wherein said first connects Log equipment is connected to the second access network equipment for accessing UE and mobile management entity MME Between, described first access network equipment includes receptor, transmitter and processor, and its feature exists In: described receptor is configured to receive the first overload messages from described MME, wherein said First overload messages include starting overload or public with under described MME with described MME Land mobile communication network network PLMN starts the information that overload is relevant；Described processor is configured to According to described first overload messages, control described transmitter and send to described second access network equipment Second overload messages.

Eighth aspect, it is provided that a kind of first access network equipment, wherein said first access network sets For being connected between the second access network equipment and the mobile management entity MME for accessing UE, Described first access network equipment includes receptor, transmitter and processor, it is characterised in that: institute State receptor to be configured to receive user equipment (UE) relevant information from described second access network equipment； Described processor is configured to select MME according to described UE relevant information and judge described UE Whether meet overload treatment conditions；And described transmitter is configured to the control at described processor Under system, the UE for satisfied overload treatment conditions performs overload process operation.

9th aspect, it is provided that a kind of first access network equipment, wherein said first access network sets For being connected between the second access network equipment and the mobile management entity MME for accessing UE, Described first access network equipment includes receptor, transmitter and processor, it is characterised in that: institute State each public land shifting that receptor is configured to receive described MME from described MME Dynamic communication network PLMN or the capacity information of PLMN list；Described processor is configured to depend on The PLMN selected according to user equipment (UE) capacity under different MME, according to load balancing Mode be UE select MME.

In certain embodiments, the 6th aspect is alms giver to the first access network equipment of eighth aspect Base station DeNB or femto gateway HeNB GW.

Tenth aspect, it is provided that a kind of second access network equipment, wherein said second access network sets For being connected to mobile management entity MME, described second access network via the first access network equipment Equipment includes receptor, transmitter and processor, it is characterised in that: the configuration of described receptor is used In receiving the second overload messages, wherein said second overload messages from described first access network equipment Sent according to the first overload messages received from MME by described first access network equipment, And wherein said first overload messages include starting overload or described MME with described MME Under PLMN start the information that overload is relevant；And described processor is configured to according to described Second overload messages control described transmitter and perform the UE of satisfied overload treatment conditions at overload Reason.

11st aspect, it is provided that a kind of second access network equipment, wherein said second access network Equipment is connected to mobile management entity MME via the first access network equipment, and described second accesses Net equipment includes receptor, transmitter and processor, it is characterised in that: described processor configures For controlling described receptor and described transmitter to set up Radio Resource control with user equipment (UE) RRC processed connects；Described transmitter is configured to send described to described first access network equipment The UE relevant information of UE；And described receptor is configured to from described first access network equipment Receiving and the RRC of described UE is connected the instruction discharged, wherein said instruction is described the One access network equipment determines according to described UE relevant information and meets overload treatment conditions and send.

In certain embodiments, the second access network equipment of the 9th aspect and the tenth aspect is relaying Node RN or Home eNodeB HeNB.

According to the specific embodiment of technology described in this application scheme, set by the first access network For receiving the overload including MME or the overload phase with the PLMN MME from MME First overload messages of the information closed, and according to these first overload messages to the second access network equipment Sending the second overload messages, the second access network equipment obtains and transships relevant information or instruction, Thus may decide that overload processes, thus contribute to supporting overload mechanism.

Accompanying drawing explanation

By reading retouching in detail with reference to made non-limiting example is made of the following drawings Stating, other features, purpose and advantage will become more apparent upon:

Fig. 1 shows the system architecture diagram of the System Architecture Evolution (SAE) of prior art；

Fig. 2-Fig. 3 shows the frame of the example wireless access network that can apply the embodiment of the present application Composition；

Fig. 4 shows showing of the method for the first access network equipment according to the embodiment of the present application Example flow chart；

Fig. 5 show according to the embodiment of the present application in the first access network equipment, the second access network One example of the signaling flow between equipment and mobile management entity MME；

Fig. 6 show according to the embodiment of the present application in the first access network equipment, the second access network Another example of signaling flow between equipment and mobile management entity MME；

Fig. 7 show according to the embodiment of the present application in the first access network equipment, the second access network Another example of signaling flow between equipment and mobile management entity MME；

Fig. 8 shows the method for the first access network equipment according to the embodiment of the present application again One exemplary process diagram；

Fig. 9 shows the method for the first access network equipment according to the embodiment of the present application again One exemplary process diagram；

Figure 10 shows the UE corresponding with the method for Fig. 9, the first access network equipment and second The example of the signaling flow between access network equipment；

Figure 11 shows the method for the first access network equipment according to the embodiment of the present application Another exemplary process diagram；

Figure 12 shows connecing for the first access network equipment and second according to the embodiment of the present application The exemplary flow of the method for log equipment；

Figure 13 shows connecing for the first access network equipment and second according to the embodiment of the present application The another exemplary flow of the method for log equipment；

Figure 14 shows connecing for the first access network equipment and second according to the embodiment of the present application One example of the signaling flow between log equipment；

Figure 15 shows connecing for the first access network equipment and second according to the embodiment of the present application Another example of signaling flow between log equipment；

Figure 16 shows the method for the second access network equipment according to the embodiment of the present application Another exemplary flow；

Figure 17 shows connecing for the first access network equipment or second according to the embodiment of the present application The another exemplary flow of the method for log equipment；

Figure 18 shows connecing for the first access network equipment and second according to the embodiment of the present application Another example of signaling flow between log equipment；

Figure 19 shows connecing for the first access network equipment and second according to the embodiment of the present application Another example of signaling flow between log equipment；And

Figure 20 is shown suitable for putting into practice the letter of the entity of many exemplary embodiments of the application Change block diagram.

Detailed description of the invention

With embodiment, the application is described in further detail below in conjunction with the accompanying drawings.It is appreciated that , specific embodiment described herein is used only for explaining related invention, rather than to this Bright restriction.It also should be noted that, for the ease of describe, accompanying drawing illustrate only with About the part that invention is relevant.

It should be noted that in the case of not conflicting, the embodiment in the application and embodiment In feature can be mutually combined.Describe this below with reference to the accompanying drawings and in conjunction with the embodiments in detail Application.

In the following description, base station (BS) is that the access that communication equipment accesses Cellular Networks sets Standby, it is for distributing the communication resource to communication equipment.Base station can be following any entity: increases Strong type node B, node B, radio access unit, base station controller, base transceiver station, Etc..Communication equipment can be intended in via access network access service and can be configured to Any equipment communicated by access network.Such as, communication equipment can include but not limited to: Subscriber equipment (UE), mobile station (MS), cell phone, smart phone, computer or It is configured with the multimedia system of communication function.It should be noted that, in the following description, term is " logical Letter equipment ", " subscriber equipment " and " user terminal " use can be exchanged.

In view of problem present in background technology, this application provides a kind of for radio communication The overload processing scheme of system.As previously mentioned, E-UTRAN also supports multiple technologies Framework.Fig. 2-Fig. 3 shows the example wireless access network that can apply the embodiment of the present application Organization Chart.

See the schematic diagram that Fig. 2, Fig. 2 are the wireless access networks of RN and DeNB structure.RN 201 There is provided for UE and access radio network interface.RN does not support to select the function of MME into UE, Necessary information can be sent to DeNB 202 by RN 201, DeNB 202 perform choosing for UE Select the MME of service.It is wave point Un between RN 201 and DeNB 202.DeNB props up Hold gateway function, provide IP address for RN.DeNB provides the generation of core network access for RN Reason, terminate the interface related signaling of S1.

See the schematic diagram that Fig. 3, Fig. 3 are the wireless access networks that Home eNodeB is constituted.Family's base (HeNB) 301 that stand provides for UE and accesses radio network interface.Home eNodeB can directly connect Enter core net, such as evolution block core (Evolved Packet Core, EPC), or logical Cross femto gateway (HeNB GW) 302 core network access, to by HeNB GW 302 The HeNB 301 of core network access, does not support to select the function of MME, HeNB 301 into UE Necessary information can be sent to HeNB GW 302, HeNB GW 302 perform for UE Select the MME of service.HeNB GW provides agent functionality for HeNB core network access, eventually The knot interface related signaling of S1.

When node overload of core network, can start to be indicated to base station by overload, it is desirable to base station performs Overload action.Various overload action can be defined.Such as refuse the RRC (Radio of following reason Resource Control, wireless heterogeneous networks) set up: the non-emergent number originated for UE According to the RRC connection establishment transmitted；RRC connection establishment for signaling；Can tolerate that delay connects The RRC connection establishment entered.Or only allow the RRC of following reason to set up: for emergent session RRC connection establishment with the business of UE terminating；For high priority session and UE terminating The RRC connection establishment of business；The RRC connection establishment of delay-tolerant.

Base station often connects with multiple core net nodes exist.In general, build in UE connection For the core net joint of UE service immediately before base station or femto gateway often select for UE Point.Depend on the scene of reality, base station or femto gateway or the S-TMSI according to UE (S temporary user identifier, in the mark of Long Term Evolution (LTE) inner UE, including MMEC (MME Code, MME code) and M-TMSI), or the public land selected according to UE Mobile communications network (Public Land Mobile Network, PLMN) and the whole world of UE Unique MME mark (Globally Unique MME Identifier, GUMMEI) is UE Select core net node.When UE neither provides S-TMSI the most not provide GUMMEI or When the MME of the GUMMEI instruction provided is not connected with base station, base station is usually according to negative Carrying the principle of equilibrium, i.e. based on MME present load indicator (weight factor) is UE selects MME.It addition, the negative load-carrying balance function permission of MME is in MME pond UE gravity treatment MME, it can be connected by the S1 of release UE and indicate UE to initiate RRC S-TMSI or GUMMEI is not provided to realize during connection.

Knowable to the framework of Fig. 2 and Fig. 3, RN and indirectly connected HeNB does not the most have for UE choosing Select the selection function (NNSF, NAS node selection function) of MME.When after overload MME, RN and indirectly connected HeNB can receive the overload of DeNB/HeNB GW forwarding and start message, refers to Show the GUMMEI of the MME that overload occurs.Connect when UE initiates RRC to RN/HeNB Time there may be following two situation:

Situation 1:UE is asked in the RRC connection establishment being sent to RN and indirectly connected HeNB Middle offer S-TMSI/GUMMEI.Now, RN/HeNB may determine that overload MME's MMEC in the most corresponding S-TMSI/GUMMEI received of MMEC in GUMMEI, If it does correspond, then perform overload action, the RRC such as refusing UE sets up request.

Situation 2:UE is asked in the RRC connection establishment being sent to RN and indirectly connected HeNB In neither provide S-TMSI the most not provide GUMMEI, or the GUMMEI that UE provides The MME that MME with the DeNB/HeNB GW of instruction is connected does not connects.Now, RN/HeNB cannot judge the MME of UE, then cannot determine overload action, because DeNB/HeNB GW may be that UE selects a non-overloaded according to the principle of load balancing MME, or may all transship by all MME, do not have the MME of non-overloaded optional. RN and indirectly connected HeNB cannot judge whether the MME finally selected is the MME transshipped.

It addition, under the scene that wireless access network is shared, the scene that particularly core net is also shared Under, MME can support multiple PLMN.Under certain MME during certain PLMN overload, MME entirety may will not be transshipped.Now DeNB/HeNB GW may receive under MME Certain PLMN overload sent out starts message.Message comprises certain GUMMEI of this MME (composition of GUMMEI is PLMN+MMEI), indicates overload in this GUMMEI PLMN.So the PLMN that the DeNB/HeNB GW that RN and indirectly connected HeNB receives forwards It is all to pass through GUMMEI that the overload beginning message of overload and the overload of overload MME start message Instruction overload.For above-mentioned situation, it may appear that problems with.

Problem 1: when RN and indirectly connected HeNB can receive the mistake that DeNB/HeNB GW sends Carrying when starting message, RN/HeNB None-identified is a) whole overload MME, or b) PLMN transships.

In situation 1, a) whole overload MME, RN/HeNB can be according to overload MME GUMMEI in MMEC correspondence S-TMSI/GUMMEI in MMEC performed Load action, it may be assumed that judge the S-TMSI/GUMMEI in the RRC connection establishment request of UE In MMEC with overload MME GUMMEI in MMEC whether mate, and Performed the overload action to UE by RN/HeNB in the case of joining, such as refuse the RRC of UE Set up request；But if b) PLMN transships, owing to not having PLMN's in S-TMSI Information, RN/HeNB may need the RRC waiting until to receive UE transmission to set up completion message, Whether could be that the PLMN transshipped judges whether to discharge UE according to the PLMN that UE selects RRC connect.Otherwise, when b) PLMN transships, if according further in GUMMEI MMEC to UE perform overload action, will be the UE of other PLMN under this MME Request also refusal falls, and causes faulty operation.

Problem 2:RN/HeNB also None-identified PLMN overload situations is c) certain PLMN Transship under certain MME supporting this PLMN), or d) certain PLMN is supporting Transship under all MME of this PLMN.Because if being certain PLMN of c) certain MME Overload, then the PLMN selected according to UE and load balancing principle are that UE gravity treatment MME is Can, base station need not perform overload action；If d) certain PLMN is supporting this PLMN All MME under transship, then base station will to have selected this overload PLMN UE perform Overload action.

Problem 3: currently requiring that base station/HeNB GW supports according to the principle of load balancing is UE Select MME.When selecting MME for UE, base station/HeNB GW needs to refer to MME The information of the load in the thermote of instruction.But, after MME shares, base station pair The load condition of different PLMN ignorant in MME, causes selecting according to UE When PLMN selects MME, load imbalance between different MME under same PLMN.

Problem 4: when all MME connected when base station transship, base station may perform to connect Enter to stop operation (Barring).Even if but RN/HeNB receive overload instruction in contain The GUMMEI, RN/HeNB of all MME that DeNB/HeNB GW is connected also do not know The all MME in road become overloaded, and the RRC connection establishment request to the UE in situation 2 will Let pass, but do not had MME can service for UE.

In order to solve one or more problem above-mentioned, this application provides a kind of for nothing The overload processing scheme of line communication system.First access network equipment can be eNB, DeNB or HeNB GW, the second access network equipment can be HeNB, RN.Fig. 4 shows according to this The exemplary process diagram of the method for the first access network equipment of application embodiment.This area skill Art personnel are appreciated that for example and the purpose that readily appreciates, draw in the following description and Describe one or more particular technology details, but embodiments herein can also not have Put into practice in the case of having these features.In the embodiment shown in fig. 4, set with two groups of access networks Enter as a example by standby communication between (the first access network equipment and the second access network equipment) and MME Row explanation, wherein the first access network equipment is direct-connected with MME, and the second access network equipment is via the One access network equipment and be indirectly connected with MME.

As shown in Figure 4, in step 401, the first access network equipment is from mobile management entity MME receives the first overload messages.

First access network equipment (such as eNB, DeNB or HeNB GW) can from its The one or more MME connected receive the first overload messages.

Which MME first overload messages and/or the first overload messages source MME may indicate that There is the PLMN overload under overload or which MME.

First overload messages can also comprise an instruction, instruction MME start overload or PLMN under MME starts overload.

Step 402, the first access network equipment sends the second overload messages to the second access network equipment.

First access network equipment can be originated according to the first overload messages and/or the first overload messages MME knows that MME starts the PLMN under overload or MME and starts overload.

First access network equipment can generate the second overload messages based on the first overload messages, then will Second overload messages are sent to the second access network equipment (such as RN or HeNB).

In some optional implementations, the first overload messages and the second overload messages include sending out Raw overload MME specifically transships action.The overload action of the most each GUMMEI can be different.

In some optional implementations, the first overload messages and the second overload messages include sending out Raw overload PLMN specifically transships action.A) each PLMN overload action can be different Or b) the overload action of PLMN is identical in same PLMN list, but different PLMN list Overload action can be different.

First access network equipment can take multiple processing mode when to determine to the second access network Equipment sends the second overload messages, and includes which content at the second overload messages.

Fig. 5 show according to the embodiment of the present application in the first access network equipment, the second access network One example of the signaling flow between equipment and MME.In this example, the first overload messages Being carried on the first overload and start in message, the second overload messages are carried on the second overload and start message In.Method shown in Fig. 5 is a kind of illustrative embodiments of Fig. 4.

As it is shown in figure 5, comprise the following steps:

Step 501, the first access network equipment receives the first overload and starts message.First access sets Standby according to the first overload start the first overload messages in message determine MME start overload or PLMN under MME starts overload.

As example, the first access network equipment can start to comprise in message according to the first overload MME mark determines transships on PLMN on MME.This MME mark can be GUMMEI list.The PLMN mark comprised in this MME mark may indicate that at MME The PLMN of upper overload.First access network equipment can start in message not according to the first overload Comprise MME mark (such as GUMMEI), determine that MME node transships.

As example, the first access network equipment can start to comprise in message according to the first overload Load type indicates, and determines and transships on PLMN on MME.First access network equipment is also Can start message does not comprise overload type instruction according to the first overload, determine it is on MME Transship on PLMN.In certain embodiments, the first access network equipment can be according to first Overload starts to comprise in message the value of overload type instruction determines it is to send out on PLMN on MME Raw overload or MME node overload.Overload type instruction value can include with next or Multiple: the upper PLMN of MME occurs overload or MME to transship.

As example, the first access network equipment can start to comprise in message according to the first overload PLMN identifies, and determines and transships on PLMN on MME.First access network equipment is also Can start message does not comprise PLMN mark according to the first overload, determine it is on MME Transship on PLMN.This PLMN mark may indicate that the PLMN of overload on MME.

As example, the first access network equipment can be according to from supporting that certain PLMN's is all MME receives first overload beginning certain PLMN of message authentication about this PLMN and entirely transships.

As example, the first access network equipment can be according to from supporting that certain PLMN's is all MME receives the first overload beginning message about this PLMN and overload action all refuses certain The RRC of reason sets up, and confirms the full mistake of certain PLMN set up for the RRC of certain reason Carry.

Step 502, the first access network equipment generates and includes that the second overload of the second overload messages is opened Beginning message also sends to the second access network equipment.

In certain embodiments, the second overload messages include following one or more: overload type Instruction, PLMN mark, GUMMEI identifies, and PLMN accesses and stops instruction, and PLMN protects Staying instruction, RRC discharges instruction.In some optional implementations, the first overload messages can To also include information above.

Specifically, in some implementations, the second overload messages are PLMN mark or GUMMEI Mark.PLMN mark represents the PLMN that overload occurs.GUMMEI mark represents MME Transship.The PLMN that overload occurs refers to 1) certain PLMN supporting this PLMN Transship under certain or some MME；Or 2) certain PLMN supporting that this PLMN's is all Transship under MME.Above MME is the MME that the first access network equipment connects.

In other realize, the second overload messages are overload type instruction and GUMMEI mark Know.GUMMEI mark represents the mark of the MME of overload, and PLMN therein identifies representative The PLMN mark of overload.

In certain embodiments, the instruction of overload type can include overload MME instruction or PLMN Overload instruction.

PLMN overload refer to 1) certain PLMN support this PLMN certain or some Transship under MME；Or 2) certain PLMN mistake under all MME supporting this PLMN Carry.Above MME is the MME that the first access network equipment connects.Alternatively, or in addition, PLMN overload instruction can divide into following one or more instruction: PLMN overburden portion refers to Showing, PLMN transships instruction entirely, is to represent both the above implication respectively.Wherein, PLMN portion Point overload expression 1), PLMN transships expression 2 entirely).

Specifically, in some implementations, the second overload messages be PLMN access stop instruction or PLMN retains instruction, is indicated to the second overload prevention device PLMN transships full when.Second Access device can be gone off the air the PLMN of full overload or be arranged to by the PLMN entirely transshipped The state of non-reserved.

Specifically, in some implementations, the second overload messages are RRC release instruction or MME Share instruction, indicate the second overload prevention device to PLMN overload or overload MME on MME all Perform the same overload operation, such as release and meet the RRC connection of reason of over-load.

In some optional implementations, the first overload messages and the second overload messages include sending out Raw overload MME specifically transships action.Overload MME is occurred specifically to transship action as walked Described in rapid 402, here is omitted.

In some optional implementations, the first overload messages and the second overload messages include sending out Raw overload PLMN specifically transships action.Overload PLMN is occurred specifically to transship action as walked Described in rapid 402, here is omitted.

Step 503, the second access network equipment receives the second overload and starts message, and second connects Log equipment starts the second overload messages in message according to the second overload received can be to meeting The UE of overload treatment conditions performs suitable overload and processes operation.

If the second access network equipment can be known according to the second overload messages: PLMN transships (, as described in step 502, here is omitted for the implication of PLMN overload), then the second access network According to following, equipment can judge that whether UE meets overload treatment conditions: 1) set up at RRC In, UE have selected the PLMN that overload occurs；2) the reason symbol of the RRC connection establishment of UE Close refusal in the overload action of overload PLMN set up or do not allow the reason set up.To meeting 1) and/or 2) UE, second access network equipment perform overload process operation, i.e. refuse UE RRC connection request or release UE RRC connect.The scene such as RRC being suitable for sets up Time, UE provides the scene of S-TMSI or GUMMEI.

If the second access network equipment is known according to the second overload messages: PLMN transships entirely (, as described in step 502, here is omitted for the implication that PLMN transships entirely), if or the Two overload messages instruction PLMN access and stop, optionally, to have selected the PLMN that overload occurs RRC set up, the second access network equipment can refuse RRC connection request or the release of UE The RRC of UE connects.Optionally, the second access network equipment can go off the air this PLMN mark Know.Optionally, this PLMN can be set to non-reserved state by the second access network equipment.

If the second access network equipment is known according to the second overload messages: PLMN transships entirely (, as described in step 502, here is omitted for the implication that PLMN transships entirely), and the second overload In information, the overload action of instruction is the RRC foundation refusing certain reason, and the second access network sets Standby can judge whether UE meets overload treatment conditions according to following: 1) in RRC foundation, UE have selected the PLMN that full overload occurs；2) reason of the RRC connection establishment of UE meets In overload action, all refusal is set up or is not the most allowed the reason set up.To meeting 1) and/or 2) UE, second access network equipment perform overload process operation, i.e. refuse UE RRC connect The RRC of request or release UE connects.

By above-described embodiment, the second access network equipment can identify overload MME or PLMN transships, thus performs overload accordingly and process.In certain embodiments, for PLMN Overload, the second access network equipment can identify certain PLMN mistake under certain MME further Carry or certain PLMN transships under all MME entirely, thus perform overload accordingly and process. That is, the embodiment shown in Fig. 5 can solve problem 1 set forth above and problem 2.

Fig. 6 show according to the embodiment of the present application in the first access network equipment, the second access network Another example of signaling flow between equipment and MME.Method shown in Fig. 6 is Fig. 4 Another kind of illustrative embodiments.

As shown in Figure 6, comprise the steps of

Step 601 is consistent with step 501, and here is omitted.

Step 602, the first access network equipment determines that certain PLMN transships or entirely for certain reason RRC set up certain PLMN entirely transship in the case of, first access network equipment generate bag Include the second overload messages about the information of the PLMN of overload entirely.Start to disappear by the second overload Cease and send to the second access network equipment.Second overload messages content is as described in step 502, herein Repeat no more.

As example, the first access network equipment is from the beginning of its all MME connected receive overload Message and all message all indicate certain PLMN to transship under MME, then the first access network Equipment determines that PLMN transships entirely.First access network determines the step that PLMN transships under MME Rapid as described in step 501.

The implication that PLMN transships entirely is as described in step 502, and here is omitted.For certain Certain PLMN that the RRC of reason sets up entirely transships and refers to that certain PLMN transships and second entirely In overload messages, the overload action of instruction is the RRC foundation refusing certain reason.

In certain embodiments, determine when the first access network equipment starts message according to the first overload During PLMN overburden portion or PLMN transships but the overload action of all PLMN transshipped entirely Not refusing the RRC of same reason when setting up, this first access network equipment can not be to second Access network equipment sends the second overload and starts message.The implication of PLMN overburden portion such as step 502 Described, here is omitted.

Step 603 is consistent with step 503, and here is omitted.

By the embodiment shown in Fig. 6, the second access network equipment can identify be overload MME, Or PLMN transships entirely, thus perform overload accordingly and process.That is, the reality shown in Fig. 6 The mode of executing can solve problem 1 set forth above and problem 2.

Fig. 7 show according to the embodiment of the present application in the first access network equipment, the second access network Another example of signaling flow between equipment and MME.Method shown in Fig. 7 is Fig. 4 Another kind of illustrative embodiments.

As it is shown in fig. 7, comprises following steps:

Step 701 is consistent with step 501, and here is omitted.

Step 702, the first access network equipment includes the first of the first overload messages according to receive Overload starts message and determines that all MME of above-mentioned first access network equipment connection transship the most entirely Or all MME for the RRC foundation of certain reason transship entirely.First access network equipment is true Determine the feelings entirely transshipped of all MME that MME entirely transships or sets up for the RRC of certain reason Under condition, the first access network equipment sends and includes that the second overload of the second overload messages starts message.

As example, the first access network equipment can be according to from being connected to its all MME all Receive the first overload beginning all MME of message authentication the most entirely to transship.

As example, the first access network equipment can be according to from being connected to its all MME all Reception the first overload beginning message and overload action are all refused the RRC of certain reason and are connected confirmation All MME for the RRC connection establishment of certain reason transship entirely.

In certain embodiments, the second overload messages can be following one or more: accesses Stop instruction, overload type instruction or GUMMEI mark.GUMMEI is designated full overload The mark of MME.Overload type instruction MME transships entirely.

Alternatively, the first access network equipment is only when determining institute according to above-mentioned first overload beginning message State all MME that the first access network equipment connects entirely to transship or for the RRC of certain reason Set up MME when entirely transshipping, just send the second overload and start message.In certain embodiments, The first access network equipment connecting portion is determined when the first access network equipment starts message according to the first overload Point overload MME or all MME entirely transship but the overload action of all MME transshipped not Refusing the RRC of same reason when setting up, this first access network equipment can not access to second Net equipment sends the second overload and starts message.

Step 703, the second access network equipment starts the in message according to the second overload received Two overload messages perform overload operation.

If the second access network equipment is known according to the second overload messages: the first access network equipment is even If the MME connect transships entirely or the instruction of the second overload messages accesses and stops, optionally, the Two access network equipments can refuse the RRC connection request of all UE.Optionally, second access Net equipment can arrange community in Cell Broadcast CB and stop instruction.

If the second access network equipment is known according to the second overload messages: the first access network equipment is even The MME connect transships entirely and the overload action of all MME is refusal or does not the most allow certain The RRC of reason sets up, and the second access network equipment can be refused the RRC of above-mentioned reason and set up. The RRC request or the release RRC that i.e. refuse this reason connect.

In some optional implementations, the first overload messages and the second overload messages include sending out Raw overload MME specifically transships action.Overload MME is occurred specifically to transship action as walked Described in rapid 402, here is omitted.

By the embodiment shown in Fig. 7, it is complete that the second access network equipment can identify whether MME Overload, thus perform overload accordingly and process.That is, the embodiment shown in Fig. 7 can solve Problem 4 the most set forth above.

Fig. 8 shows the method for the first access network equipment according to the embodiment of the present application again One exemplary flow.Method shown in Fig. 8 can be independent of the execution of the method step of Fig. 4 Perform, it is also possible to perform in combination with the method step of Fig. 4.

As shown in Figure 8, comprise the steps of

Step 801, the first access network equipment receives each PLMN this MME from MME Or the capacity information of each operator.Alternatively, each under described capacity information includes MME The residue of each PLMN list of individual PLMN/ processes capacity；Or each under MME Taking of each operator of PLMN//each PLMN list processes capacity (i.e. load).Can Selection of land, above-mentioned process capacity can be absolute capacity or relative capacity, and wherein relative capacity represents In MME pond, the capacity of the specific PLMN/ specific PLMN list under certain MME is relative Other in MME pond support that this PLMN/ supports under the MME of this specific PLMN list The capacity of this specific PLMN/ specific PLMN list.

In one implementation, PLMN list comprises one or more PLMN.One operation Business can support that multiple PLMN, the PLMN of operator's support may be constructed one or many Individual PLMN list.The capacity information of PLMN list represents in MME and configures for this operator Capacity or be the capacity of this PLMN list configuration.In one implementation, can be at MME In entity, identify an operator or PLMN list, i.e. a MME by MMEC When being shared by multiple operators, different for different operators or different PLMN list configuration MMEC.It is this MMEC generation in shared MME that the capacity information of MMEC represents The operator of table or the capacity of PLMN list configuration or the capacity for this MMEC configuration.

In one implementation, the capacity information of each PLMN under above-mentioned MME is included in MME configuration update message, S1 set up in response message, MME set to the first access network Preparation is sent.

Step 802, the PLMN/PLMN list that the first access network equipment selects according to UE exists Capacity under different MME, the PLMN selected at support UE according to the mode of load balancing MME in for UE select MME.Such as, load proportion is selected to meet stressor MME or select the most MME of residual capacity.

By the method shown in Fig. 8, same PLMN/PLMN list should in support Load in the different MME of PLMN/PLMN list is equilibrium, before thus can solving The problem 3 that face proposes.And as the specific PLMN/PLMN under certain MME in MME pond During list overload, due to load balancing, it is meant that this specific PLMN/PLMN under other MME List is also overload.In this case, the second access network equipment is without identifying PLMN mistake Carrying type is PLMN overburden portion or PLMN transships entirely, namely can solve to be previously noted Problem 2.

Fig. 9 shows the method for the first access network equipment according to the embodiment of the present application again One exemplary flow.Method shown in Fig. 9 can be independent of the execution of the method step of Fig. 4 Perform, it is also possible to perform in combination with the method step of Fig. 4.In the embodiment shown in Fig. 9 In, the second access network equipment can not perform overload to UE and process, but builds with this UE Vertical RRC connects, and transfers to the first access network equipment to judge whether to need to perform at overload afterwards Reason.

As it is shown in figure 9, comprise the steps of

Step 901, the first access network equipment receives the letter relevant to UE from the second access network equipment Breath.Wherein, UE sets up RRC with above-mentioned second access network equipment and is connected.

Information relevant for UE can comprise S-TMSI, GUMMEI, or PLMN mark.

In one implementation, the RRC comprising UE in relevant to UE information further connects Set up reason.

Step 902, the first access network equipment selects MME according to the information relevant to UE and sentences Whether disconnected UE meets overload treatment conditions.

Alternatively, when selecting for UE or reselect MME of the first access network equipment execution, Prioritizing selection one below: select the MME of non-overloaded；In the MME of overload, select The RRC connection establishment reason of UE meets MME (the such as MME that overload action allows to access When all transshipping)；Supporting that UE selects, in the MME of PLMN, to select the non-mistake of this PLMN The MME carried；In the MME of PLMN and this PLMN overload supporting UE selection, The RRC connection establishment reason selecting UE meets overload action and allows the MME of access (such as When PLMN transships entirely).

According at least one, first access network equipment judges whether UE meets overload and process bar Part:

1) be UE select MME be overload MME；Or the PLMN that UE selects exists For transshipping under the MME that UE selects.

2) reason of the RRC connection establishment of above-mentioned UE meets the RRC of refusal in overload action Connection establishment reason or do not meet the RRC connection establishment reason only allowed in overload action.

If the first access network equipment judges to meet overload treatment conditions 1) and/or 2), then perform Overload processes operation.Overload process operation such as can be included as UE reselect MME or Person indicates the RRC of the second access network equipment release UE to connect, and i.e. enters step 903.

Step 903, the first access network equipment indicates the second access network equipment release RRC to connect.

Figure 10 shows the UE corresponding with the method for Fig. 9, the first access network equipment and second The example of the signaling flow between access network equipment.

As shown in Figure 10, comprise the steps of

Step 1001, UE sets up RRC with above-mentioned second access network equipment and is connected.

Step 1002, the first access network equipment receives initial UE message from the second access network equipment, Comprise the information relevant to UE.The information relevant to UE is as described in step 901, the most not Repeat again.

Step 1003 is consistent with step 902, and here is omitted.

Step 1004, the first access network equipment is to the second access network equipment

Send descending Non-Access Stratum NAS (Non-Access Stratum, Non-Access Stratum) transmission to disappear Breath or UE context release command message.

In one implementation, message comprises the instruction of a RRC Connection Release.

In one implementation, message release cause indicates congested or load balancing location updating requirement. After second access network equipment receives above-mentioned message, directly initiate the release that the RRC of UE connects. Alternatively, the NAS bag in message can be Dummy (pseudo-) bag.Second access network equipment Need not be sent to UE after receiving these NAS bags.Alternatively, the NAS bag in message is permissible It it is the refuse information of corresponding UE request.As UE initiates service request, then return service-denial, Initiating attachment request, be then attachment refusal, launch position is the most newly requested, is location updating refusal. The reason of refusal can be " congested " or " requirement of load balancing location updating ".

Figure 11 shows the method for the first access network equipment according to the embodiment of the present application Another exemplary flow.

MME can be shared by multiple operators, and an operator may support multiple PLMN. The MMEC of MME is set as the distinctive MMEC of operator certain PLMN row in other words conj.or perhaps The distinctive MMEC of table.Optionally, this PLMN list is all PLMN that certain operator supports Or subset.

As shown in figure 11, comprise the steps of

Step 1101, the first access network equipment receives the first overload messages from MME, by it It is transmitted to the second access network equipment as the second overload messages.First overload messages are carried on first Overload starts in message, and the second overload messages are carried on the second overload to start in message.

First access network equipment GUMMEI from the first overload messages was it is known that occurred The MMEC carried.The MMEC that overload occurs be probably overload MMEC corresponding to MME or The MMEC that PLMN or PLMN list of transshipping under MME is corresponding, the first access network equipment is not Needing differentiation is PLMN overload or overload MME.

Step 1102, according to the second overload messages received, the second access network equipment judges that UE is No satisfied overload treatment conditions, to confirming that the UE meeting overload treatment conditions performs overload process Operation.

Second access network equipment GUMMEI from the second overload messages was it is known that occurred The MMEC carried.The MMEC that overload occurs be probably overload MMEC corresponding to MME or The MMEC that PLMN or PLMN list of transshipping under MME is corresponding, the second access network equipment is not Needing differentiation is PLMN overload or overload MME.

According at least one, second access network equipment judges whether UE meets overload and process bar Part:

1) whether UE have selected overload MMEC, such as UE instruction in RRC sets up GUMMEI or S-TMSI comprises the MMEC of overload.

2) reason of the RRC connection establishment of UE meets the RRC connection of refusal in overload action Set up reason or do not meet the RRC connection establishment reason only allowed in overload action.

If the second access network equipment judges to meet overload treatment conditions 1) and/or 2), then perform Overload processes operation.

Overload processes operation and refers to refuse RRC request or release RRC connection.

Figure 12 shows connecing for the first access network equipment and second according to the embodiment of the present application The exemplary flow of the method for log equipment.

Step 1201, the second access network equipment sends relevant to UE to the first access network equipment Information.Information relevant for UE can be carried in initial UE message.Wherein, UE is with upper State the second access network equipment and set up RRC connection.

Information relevant for UE can comprise S-TMSI, GUMMEI, or PLMN mark.

In one implementation, the RRC comprising UE in relevant to UE information further connects Set up reason.

Step 1202, the second access network equipment receives the instruction of RRC Connection Release.

In one implementation, step 1202 concrete operations are with described in step 1004.

Figure 13 shows connecing for the first access network equipment or second according to the embodiment of the present application The another exemplary flow of the method for log equipment.

The corresponding pass of the PLMN that MME with MME is supported by method step 1301:MME Be that information is sent to the first access network equipment or the first access network equipment connects each The correspondence relationship information of the PLMN that MME Yu MME supports is sent to the second access network equipment.

Step 1302, starts to disappear when the first access network equipment or the second access network equipment receive overload During breath, to receiving GUMMEI mark, the first access network equipment or the second access network equipment can The correspondence relationship information of the PLMN to support with it according to MME, it is judged that the message of overload is Certain supported in MME node generation overload or MME/some PLMN is at this MME Upper transship.So, the first access network equipment or the second access network equipment just can be according to not Same overload type performs suitable overload operation.

MMEC that each MME node can be supported by this MME (MME code, MME code) or MME group identifies (MME Group ID) and MME code mark embodies. The correspondence relationship information of the PLMN mark that the most each MME node and MME support can be led to Cross at least one of in the following manner to embody:

1) the corresponding one group of MME of all MMEC of each MMEC or each MME node The PLMN mark supported；

2) all MMEC of each MMEC or each MME node under MME group mark The PLMN mark that corresponding one group of MME supports；

3) MMEC of the corresponding one group of MME supporting this PLMN of each PLMN；

4) the MME group of the corresponding one group of MME supporting this PLMN of each PLMN identifies And MMEC；Can comprise at least one of in the following manner:

The MME group of the corresponding one group of MME supporting this PLMN of-each PLMN mark is marked Know the MME code of the MME supporting this PLMN with a group；

The MME group of the corresponding one group of MME supporting this PLMN of-each PLMN mark is marked Know and each MME group identifies corresponding one group of MME supporting this PLMN and this MME group MME code；

The MME code of the corresponding one group of MME supporting this PLMN of-each PLMN mark and every Individual MME code correspondence one group supports the MME group of the MME of this PLMN and this MME code Mark.

5) the GUMMEI list that MME supports, GUMMEI list is supported by MME PLMN identifies, and MME group mark and MME code are constituted.As example, GUMMEI arranges Table can resolve into PLMN mark sequence, MME group mark sequence and MME code sequence. The PLMN mark of same position, MME group mark and MME code mark one in three sequences One is corresponding, constitutes the GUMMEI that MME supports.Such as MME1, MME2 and MME3 The PLMN that three supports respectively is (PLMN1 and PLMN2), (PLMN1 and PLMN2), PLMN3；The MME group mark of three is all MMEG1；The MME code division of three is not MMEC1, MMEC2, MMEC3.Then in GUMMEI list, PLMN sequence can be PLMN1, PLMN2, PLMN1, PLMN2, PLMN3；MME group mark sequence is MMEG1, MMEG1, MMEG1, MMEG1, MMEG1；MMEC sequence is: MMEC1, MMEC1, MMEC2, MMEC2, MMEC3.The PLMN of same position Mark, MME group mark and MME code mark together form five GUMMEI, respectively For (PLMN1+MMEG1+MMEC1), (PLMN2+MMEG1+MMEC1), (PLMN1+MMEG1+MMEC2), (PLMN2+MMEG1+MMEC2), (PLMN3+MMEG1+MMEC3)。

Figure 14 shows connecing for the first access network equipment and second according to the embodiment of the present application One example of the signaling flow between log equipment.

Step 1401: the first access network equipment (eNB, HeNB GW, DeNB) receives The S1 interface that two access network equipments (HeNB, RN) send sets up request or MME receives The S1 interface that first access network equipment sends sets up request；

Step 1402: the first access network equipment sends S1 interface to the second access network equipment and sets up Response message or MME send S1 interface to the first access network equipment and set up response message, disappear Breath include send message MME Yu MME support PLMN correspondence relationship information or The corresponding relation of the PLMN that each MME Yu MME that the first access network equipment connects supports Information.The method step of the corresponding relation such as figure 13 above of the PLMN that MME Yu MME supports Described in rapid 1302.

Figure 15 shows connecing for the first access network equipment and second according to the embodiment of the present application Another example of signaling flow between log equipment.

Step 1501: the second access network equipment (such as HeNB, RN) receives the first access network MME configuration update message that equipment (such as eNB, HeNB GW, DeNB) sends or Person's the first access network equipment receives the MME configuration update message that MME sends, and wraps in message The correspondence relationship information or first of the PLMN including MME with the MME support sending message connects The correspondence relationship information of the PLMN that each MME Yu MME that log equipment connects supports. The method step of the correspondence relationship information such as figure 13 above of the PLMN that MME Yu MME supports Described in 1302.MME or the first access network equipment can pass through MME configuration update message The corresponding relation of the PLMN supported by MME Yu MME of renewal is sent to the first access network Equipment or the second access network equipment.

Figure 16 shows the method for the second access network equipment according to the embodiment of the present application Another exemplary flow.

Step 1601: the first access network equipment receives the first overload that MME is sent to start Message or the second access network equipment (such as HeNB, RN) receive the first access network equipment (example Such as eNB, HeNB GW, DeNB) be sent to second overload start message；

Step 1602: the second overload received is started what MME Yu MME in message supported The correspondence relationship information of PLMN, starts GUMMEI mark in message to the second overload received The correspondence relationship information of the PLMN that knowledge or MME Yu MME support, the first access network equipment Or second access network equipment according to MMEC or MME group mark and MMEC and its MME The corresponding relation (as described in the method step 1302 of figure 13 above) of the PLMN supported, Judgement is that MME node occurs certain PLMN on overload or MME to transship.So, First access network equipment or the second access network equipment just can perform conjunction according to different overload types Suitable overload operation.The correspondence relationship information such as step of the PLMN that MME Yu MME supports Described in 1301, here is omitted.

Figure 17 shows connecing for the first access network equipment or second according to the embodiment of the present application The another exemplary flow of the method for log equipment.

The MME node that method step 1701: the first access network equipment connects is shared MME, supports multiple PLMN.MME is to the first access network equipment or the first access network equipment Send one of following information to the second access network equipment and share relevant information as MME: 1) RRC Release instruction；2) MME shares instruction；3) MMEC of MME is shared；4) share The MME group mark of MME and MMEC.

Method step 1702, shares relevant information based on above-mentioned MME, the first access network equipment Or second access network equipment PLMN overload or overload MME on MME are carried out the same Overload operation, such as release meet the RRC of reason of over-load and connect.

Figure 18 shows connecing for the first access network equipment and second according to the embodiment of the present application Another example of signaling flow between log equipment.

Step 1801:MME receives the S1 interface of the first access network equipment and sets up request or first Access network equipment (such as eNB, HeNB GW, DeNB) receives the second access network equipment (example Such as HeNB, RN) the S1 interface that sends sets up request；

Step 1802:MME to first access network equipment send S1 interface set up response message or First access network equipment sends S1 interface to the second access network equipment and sets up response message, in message Including one of herein below 1) the shared instruction of MME；2) MMEC of MME is shared；3) Share MME group mark and the MMEC of MME.

First access network equipment or the second access network equipment can identify after receiving which MME is Share, to shared MME, no matter be that MME occurs PLMN on overload or MME to send out Raw overload, performs the same sharing operation, such as RRC Connection Release.

Figure 19 shows connecing for the first access network equipment and second according to the embodiment of the present application Another example of signaling flow between log equipment.Step 1901: the first access network equipment is received The MME configuration update message sent to MME or the first overload start message；Second accesses Net equipment (such as HeNB, RN) receive the first access network equipment (such as eNB, HeNB GW, DeNB) the MME configuration update message sent or the second overload start message.In message above Including herein below one or more 1) the shared instruction of MME；2) MME of MME is shared Code；3) MME group mark and the MME code of MME are shared；4) the MME mark shared, Such as GUMMEI.As example, the first access network equipment can receive above disappearing from core net The content that breath includes.

First access network equipment or the second access network equipment (such as HeNB, RN) are according to receiving Message in information can identify which MME is shared, to shared MME, no matter It is that MME occurs PLMN on overload or MME to transship, performs the same sharing operation, Such as RRC Connection Release.

Figure 20 is shown suitable for putting into practice the entity 2000 of many exemplary embodiments of the application Simplified block diagram.Entity 2000 can be configured to the first access network equipment, such as DeNB or HeNB GW, this entity 2000 can also be configured to the second access network equipment, such as RN or HeNB。

As shown in figure 20, entity 2000 includes processor 2001, is coupled to processor 2001 Memorizer 2002, and be coupled to processor 2001 be suitable for radio frequency (RF) transmitter With receptor 2004.Memorizer 2002 stores program 2003.Transmitter/receiver 2004 is fitted Together in two-way wireless communication.Note, transmitter/receiver 2004 have at least one antenna with Facilitating communications, the first access network equipment or the second access network equipment are likely to be of multiple in practice Antenna.Entity 2000 can be coupled to one or more external network via data path or be System, such as MME.

Program 2003 can include programmed instruction, when these programmed instruction are by the processor associated During 2001 execution, it makes entity 2000 operate according to each exemplary embodiment of the application.

Embodiments herein can be by the executable calculating of processor 2001 of entity 2000 Machine software realizes, or is realized by hardware, or is come by the combination of software with hardware Realize.

Memorizer 2002 can be suitable for the storage of any suitable type of local technical environment Device, and any suitable data storage technology can be used to realize, such as based on quasiconductor Storage device and system, magnetic storage apparatus and system, light storage device and system, fixing Memorizer and removable memory, these are only used as nonrestrictive example.Although at entity Merely illustrate a memorizer in 2000, can exist multiple the most only in entity 2000 Vertical memory element.Processor 2001 can be suitable for any suitable class of local technical environment The processor of type, and can include following in one or more: general purpose computer, special Computer, microprocessor, digital signal processor (DSP) and based on polycaryon processor framework Processor, these are only used as nonrestrictive example.

When entity 2000 is configured to the first access network equipment, in certain embodiments, transmitter Receptor in/receptor 2004 is configured to receive the first overload messages, wherein from MME Above-mentioned first overload messages include the overload with MME or the mistake with the PLMN under MME Carry relevant information.

Processor 2001 is configured to according to the first overload messages received, control transmitter/ Transmitter in receptor 2004 sends the second overload messages to the second access network equipment.

When entity 2000 is configured to the second access network equipment, in certain embodiments, transmitter Receptor in/receptor 2004 is configured to receive second from the first access network equipment and crosses information carrying Breath, wherein the second overload messages by the first access network equipment according to first received from MME Overload messages and send, and wherein the first overload messages include the overload with MME or The information that the overload of the PLMN under MME is correlated with.

Receptor in transmitter/receiver 2004 is also configured to receive RRC from UE and connects Set up request.

Processor 2001 is configured to connect according to the second overload messages received and RRC build Vertical request controls the transmitter in transmitter/receiver 2004 and performs overload process.

Should be appreciated that each unit being included in entity 2000 is arranged to put into practice disclosed herein Exemplary embodiment.Therefore, the operation and the feature that describe above in conjunction with Fig. 4-Figure 12 are also suitable In entity 2000 and unit therein, omit it at this and describe in detail.

As on the other hand, present invention also provides a kind of computer-readable recording medium, this meter Calculation machine readable storage medium storing program for executing can be the first access network equipment or the second access network in above-described embodiment Computer-readable recording medium included in equipment；Can also be individualism, be unkitted and allocate into Computer-readable recording medium in equipment.Computer-readable recording medium storage have one or More than one program, described program is used for performing description by one or more than one processor Overload processing method in the application.

As can be seen from the above technical solutions, the scene also right and wrong that either wireless access network is shared The scene that wireless access network is shared, RN/HeNB can correctly perform the overload of MME instruction Action, when network congestion occurs, ensures the access of high-priority users, it is ensured that urgency traffic Execution.

Above description is only the preferred embodiment of the application and saying institute's application technology principle Bright.It will be appreciated by those skilled in the art that invention scope involved in the application, do not limit In the technical scheme of the particular combination of above-mentioned technical characteristic, also should contain simultaneously without departing from In the case of described inventive concept, above-mentioned technical characteristic or its equivalent feature carry out combination in any And other technical scheme formed.Such as features described above and (but not limited to) disclosed herein The technical characteristic with similar functions is replaced mutually and the technical scheme that formed.

Claims (15)

1., for the overload processing method of wireless communication system, wherein said system includes the One access network equipment, the second access network equipment and mobile management entity MME, described second connects Log equipment is connected to described MME via described first access network equipment, it is characterised in that Described method includes:

Described first access network equipment receives the first overload messages from described MME, wherein said First overload messages include starting overload or public with under described MME with described MME Land mobile communication network network PLMN starts the information that overload is relevant；And

Described first access network equipment is according to described first overload messages, to described second access network Equipment sends the second overload messages.

Method the most according to claim 1, it is characterised in that described first overload messages Or described second overload messages include following one or more: overload type instruction, PLMN mark Know, the whole world unique MME mark GUMMEI, PLMN access and stop instruction, PLMN to protect Stay instruction and RRC release instruction.

Method the most according to claim 2, it is characterised in that described overload type indicates Including overload MME instruction or PLMN overload instruction, described PLMN overload instruction expression one One or some MME of this PLMN of support that individual PLMN connects at the first access network equipment Lower overload or represent this PLMN's of support that PLMN connects at the first access network equipment Transship under all MME.

Method the most according to claim 1, it is characterised in that described according to described first Overload messages, send the second overload messages to described second access network equipment and include:

Determine that described first access network equipment connects according to described first overload messages all MME the most entirely transship or under MME full overload and overload action all refuse or do not allow one or The radio resource control RRC of multiple reasons is set up；And

Send described second overload messages, described second overload messages include following at least one: Accessing and stop instruction, overload type instruction and the unique MME in the whole world identify GUMMEI, wherein Overload type instruction MME transships entirely, and GUMMEI is the mark of the MME of full overload.

Method the most according to claim 1, it is characterised in that described first overload messages Include that MME code MMEC, described MMEC are set to described second overload messages The distinctive MMEC of operator, PLMN be distinctive or the distinctive MMEC of PLMN list.

6., for the overload processing method of wireless communication system, wherein said system includes the One access network equipment, the second access network equipment and mobile management entity MME, described second connects Log equipment is connected to described MME via described first access network equipment, it is characterised in that Described method includes:

Described first access network equipment receives the first overload messages from described MME；And it is described The UE of satisfied overload treatment conditions is held by the first access network equipment according to described first overload messages Row overload processes；

Or, described second access network equipment receives the second overload from described first access network equipment Information；And described second access network equipment according to described second overload messages to satisfied overload at The UE of reason condition performs overload and processes.

Method the most according to claim 6, it is characterised in that described first access network sets Standby according to described first overload messages, the UE of satisfied overload treatment conditions is performed overload process or Described second access network equipment according to described second overload messages to satisfied overload treatment conditions UE performs overload process and includes:

When described first overload messages or the second overload messages instruction PLMN overload, according to following Arbitrary judge that whether UE meets overload treatment conditions, and the UE to satisfied overload treatment conditions, Refuse its RRC connection request or release RRC connect:

In radio resource control RRC is set up, UE have selected the PLMN that overload occurs；With And

The RRC connection establishment reason of UE meet overload PLMN overload action in refusal set up Or do not allow the RRC connection establishment reason set up.

Method the most according to claim 6, it is characterised in that described first access network sets Standby according to described first overload messages, the UE of satisfied overload treatment conditions is performed overload process or Described second access network equipment according to described second overload messages to satisfied overload treatment conditions UE performs overload process and includes:

Described first overload messages or described second overload messages instruction PLMN entirely transship or indicate PLMN accesses when stoping, and performs following arbitrary:

The RRC of the UE of the PLMN that have selected full overload is set up, refuses its RRC and connect Ask or discharge its RRC to connect；

The PLMN entirely transshipped is set to non-reserved state；And

The mark of the PLMN of full overload of going off the air.

Method the most according to claim 6, it is characterised in that described first access network sets Standby according to described first overload messages, the UE of satisfied overload treatment conditions is performed overload process or Described second access network equipment according to described second overload messages to satisfied overload treatment conditions UE performs overload process and includes:

When described first overload messages or described second overload messages instruction PLMN transship and the entirely In one overload messages or the second overload messages, the overload action of instruction is refusal or does not allow one Or the RRC of multiple reason sets up, whether meet overload process bar according to following arbitrary UE of judging Part, and the UE to satisfied overload treatment conditions, refuse its RRC connection request or release RRC connects:

In RRC sets up, UE have selected the PLMN that full overload occurs；And

The RRC connection establishment reason of UE meets refusal or unallowed RRC in overload action and connects Connect and set up reason.

Method the most according to claim 6, it is characterised in that described first access network Equipment performs overload according to described first overload messages to the UE of satisfied overload treatment conditions and processes Or described second access network equipment according to described second overload messages to satisfied overload treatment conditions UE performs overload process and includes:

When described first overload messages or described second overload messages instruction MME entirely transship or refer to Show when access stops, perform following arbitrary:

Refuse the RRC connection request of all UE；And

Community is set in Cell Broadcast CB and stops instruction.

11. methods according to claim 6, it is characterised in that described first access network Equipment performs overload according to described first overload messages to the UE of satisfied overload treatment conditions and processes Or described second access network equipment according to described second overload messages to satisfied overload treatment conditions UE performs overload process and includes:

When described first overload messages or described second overload messages instruction MME transship and institute entirely The overload action having MME is refusal or does not the most allow the RRC of one or more reason to set up Time, refusal meets the RRC of the one or more reason and sets up.

12. methods according to claim 6, it is characterised in that described method also includes:

Described first access network equipment receives described from the MME that the first access network equipment is connected The corresponding relation letter of the PLMN that MME Yu MME that the first access network equipment is connected supports Breath；

Described second access network equipment receives described first access network from described first access network equipment The correspondence relationship information of the PLMN that MME Yu MME that equipment is connected supports.

13. methods according to claim 12, it is characterised in that described MME with The correspondence relationship information of the PLMN that MME supports includes following arbitrary:

Corresponding one group of all MMEC of each MME code MMEC or each MME The PLMN mark that MME supports；

Corresponding one group of all MMEC of each MMEC or each MME under MME group mark The PLMN mark that MME supports；

Each PLMN correspondence one group supports the MME code of the MME of this PLMN；

The MME group mark of the corresponding one group of MME supporting this PLMN of each PLMN with MME code；

The MME group of the corresponding one group of MME supporting this PLMN of each PLMN mark identifies The MME code of the MME of this PLMN is supported with one group；

The MME group of the corresponding one group of MME supporting this PLMN of each PLMN mark identifies And the corresponding one group of MME supporting this PLMN and this MME group of each MME group mark MME code；

The MME code of the corresponding one group of MME supporting this PLMN of each PLMN mark and every Individual MME code correspondence one group supports the MME group of the MME of this PLMN and this MME code Mark；

The GUMMEI list that MME supports.

14. 1 kinds of overload processing methods for wireless communication system, wherein said system includes First access network equipment, the second access network equipment and mobile management entity MME, described second Access network equipment is connected to described MME via described first access network equipment, it is characterised in that Described method includes:

Described first access network equipment receives MME from described MME and shares relevant information；With And described first access network equipment shares relevant information according to described MME and processes satisfied overload The UE of condition performs overload and processes；

Or, described second access network equipment receives MME altogether from described first access network equipment Enjoy relevant information；And described second access network equipment shares relevant information according to described MME The UE of satisfied overload treatment conditions is performed overload process.

15. methods according to claim 14, it is characterised in that described MME shares Relevant information includes following one or more: MME shares instruction；Share the MME of MME Code MMEC；Share MME group mark and the MMEC of MME；The MME mark shared Know.