CN101272315A - Packet data package transmission method, system and network appliance - Google Patents
Packet data package transmission method, system and network appliance Download PDFInfo
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Abstract
The invention provides a method, a system and a network equipment for transmission of grouped data packet. At least two session management contexts of user terminals are acquired. A tunnel is configured for various radio access bearers; radio bearers are established for grouped data packets needing to be transmitted and resources are distributed for the tunnel needing to transmit the grouped data packets; the transmission of the grouped data packets between subscriber terminal and core network is carried out according to the radio bearers and tunnel after being distributed resources. Tunnel information is configured for various radio access bearers of subscriber terminals by the processes such as switching the subscriber terminals from an idle state to an activated state, etc. Thus a signaling interaction process caused by the need of acquiring tunnel information and service quality parameters of relevant radio access bearers is avoided as far as possible, when grouped data packets are transmitted by other radio access bearers between subsequent subscriber terminals and core networks; side resource of net work is saved and time delay of establishing radio access bearers is shortened.
Description
Technical field
The present invention relates to the network communications technology field, be specifically related to a kind of packet data package transmission method, system and the network equipment.
Background technology
No matter be that in the evolution network framework of still studying, Service Request (service request) flow process is the significant process of user terminal from the idle condition to the state of activation in the network architecture that 3GPP has determined.Service Request flow process is divided into two kinds: the Service Request flow process that MS initiates, and the Service Request flow process initiated of network.
In the network architecture that 3GPP has determined, the Service Request flow process that MS initiates is promptly: when the user terminal that is in idle condition need send up signaling or data, at first initiate Service Request flow process, be connected with the signaling of setting up itself and network side; If user terminal need pass data, then also need further to finish the recovery of IP carrying by the service request flow process, promptly rebuild the radio bearer between user terminal and the Access Network and recover tunnel between Access Network and the core net.The Service Request flow process that network is initiated is promptly: when core net has data or signaling need be when the user terminal that is in idle condition sends, calling user terminal at first, the user terminal that receives beep-page message comes the paging of response to network side with Service Request flow process, is connected with the signaling of setting up itself and network side by the service request flow process; If core net need send downlink data to user terminal, then also need further to finish the recovery of IP carrying by the service request flow process, promptly rebuild the radio bearer between user terminal and the Access Network and recover tunnel between Access Network and the core net.
Determining in the Service Request flow process of the network architecture, user terminal is that the RAB ID (wireless access bearing sign) according to the RB ID (radio bearer sign) of RNC indication and correspondence sets up the radio bearer between itself and the RNC, and is newly-built RAB Resources allocation by RNC.
In the Service of 3GPP evolution network framework Request flow process, Access Network is that beared information that the user terminal contextual information that sends according to core network control surface entity MME (Mobility Management Entity) and needing is set up comes and user terminal is set up radio bearer, and for newly-built RAB Resources allocation.
The inventor finds in the invention process: no matter be in the fixed network architecture or evolution network framework, the service request flow process all is to set up corresponding RAB resource according to the radio bearer of upstream data or downlink data correspondence in Access Network, as set up the RAB resource of appointment in S1-U or Iu interface; And not carrying out RAB on S1-U or Iu interface, other radio bearers do not set up process.Like this, at the business of follow-up other radio bearers, network side still needs to set up earlier RAB, then, and again by the access network node distributing radio resource, to set up radio bearer.Thereby user terminal need carry out repeatedly information interaction with network side, has wasted Internet resources and made radio bearer set up the time delay that process produces long.
Summary of the invention
Embodiment of the present invention provides packet data package transmission method, system and the network equipment, when having avoided passing through between subsequent user terminal and the core net other RAB transmission data as much as possible, owing to the signalling interactive process that the tunnel information that need obtain relevant RAB, QoS parameter etc. cause, saved the network side resource, shortened the time delay of setting up RAB.
The packet data package transmission method that embodiment of the present invention provides comprises:
Obtain at least two session management contexts of user terminal;
Be each the RAB configured tunneling technique in the described session management context;
For the packet data package of needs transmission is set up radio bearer, and, transmit according to the packet data package that the tunnel after described radio bearer, the Resources allocation carries out between user terminal and the core net for needing the tunnel distributing resource of the described packet data package of transmission.
The grouped data packet transmission system that embodiment of the present invention provides, comprise: Access Network side and core-network side, described Access Network side is provided with first module, second module, four module and the 7th module, and described core-network side is provided with three module, the 5th module, the 6th module and the 8th module;
First module: at least two session management contexts that are used to obtain user terminal;
Second module: be used to each RAB configuration Access Network side tunnel in the session management context that described first module obtains;
Three module: each the RAB configuration core-network side tunnel that is used to described user terminal;
Four module: for the packet data package of needs transmission is set up radio bearer, and for needing the Access Network side tunnel distributing resource of the described packet data package of transmission;
The 5th module: be used to store the session management context of user terminal, and at least two session management contexts of user terminal are provided for first module;
The 6th module: be used to need to determine the core-network side tunnel of transmitting grouped data bag, and for needing the core-network side tunnel distributing resource of transmitting grouped data bag;
The 7th module and the 8th module: the packet data package that is used for carrying out between user terminal and the core net in radio bearer, tunnel according to described foundation is transmitted.
Embodiment of the present invention also provides a kind of network equipment, and the described network equipment is positioned at the Access Network side, and the described network equipment is provided with first module, second module, four module and the 7th module;
First module: at least two session management contexts that are used to obtain user terminal;
Second module: be used to each RAB configuration Access Network side tunnel in the session management context that described first module obtains;
Four module: for the packet data package of needs transmission is set up radio bearer, and for needing the Access Network side tunnel distributing resource of the described packet data package of transmission;
The 7th module: be used for the radio bearer according to described foundation, described Access Network side tunnel and carry out the packet data package transmission.
Embodiment of the present invention also provides a kind of network equipment, is provided with the 5th module in the described network equipment;
The 5th module: be used to store the session management context of user terminal, and at least two session management contexts of user terminal are sent to the Access Network side.
Embodiment of the present invention also provides a kind of network equipment, is provided with three module, the 6th module and the 8th module in the described network equipment;
Three module: each the RAB configuration core-network side tunnel that is used to described user terminal;
The 6th module: be used to need to determine the core-network side tunnel of transmitting grouped data bag, and for needing the core-network side tunnel distributing resource of transmitting grouped data bag;
The 8th module: be used for carrying out the packet data package transmission according to described core-network side tunnel.
Description by technique scheme as can be known, because embodiment of the present invention is providing in the business procedure for user terminal, obtained at least two of this user terminal---as all session management contexts, and all distributed the tunnel for each RAB in the session management context, therefore, when follow-up other RAB that needs use to be in the user terminal of state of activation is realized business, the tunnel that distributes before can utilizing, avoided user terminal and network side for setting up the Signalling exchange that RAB carries out, thereby not only saved valuable network side resource, also avoided the RAB setup delay that causes owing to Signalling exchange.
Description of drawings
Fig. 1 is the data transmission method flow chart one of embodiment of the present invention;
Fig. 2 is the data transmission method flowchart 2 of embodiment of the present invention;
Fig. 3 is the data transmission method flow chart 3 of embodiment of the present invention;
Fig. 4 is the data transmission method flow chart four of embodiment of the present invention;
Fig. 5 is the data transmission method flow chart five of embodiment of the present invention;
Fig. 6 is the data transmission method flow chart six of embodiment of the present invention;
Fig. 7 is the data transmission method flow chart seven of embodiment of the present invention.
Embodiment
If providing in the business procedure for user terminal, be at least two of this user terminals---all distribute the tunnel as distributing tunnel ID etc. as each RAB in all session management contexts, then when needs use other RAB of the user terminal that is in state of activation to realize business, the tunnel that distributes before can utilizing, having avoided Access Network is the tunnel information that obtains relevant RAB, the Signalling exchange that QoS parameter etc. and core-network side are carried out, thereby not only saved valuable network side resource, also avoided the RAB setup delay that causes owing to Signalling exchange.Embodiment of the present invention can be transformed into the state of activation process from idle condition at user terminal, obtain this user terminal at least two---as all session management contexts, and distribute tunnel for each RAB in the session management context.Embodiment of the present invention also can be obtained at least two of user terminals under other application scenarios---as all the session management contexts and the process of distributing the tunnel; As need carrying out certain specific business at user terminal and be transformed in the state of activation process, obtain at least two of user terminals by idle condition---as all the session management contexts and the process of distributing the tunnel.
Being transformed into the state of activation application scenarios, obtaining all session management contexts of user terminal from idle condition with user terminal below is example, and the group data transmission method of embodiment of the present invention is described.
Need send the ascending packet data bag or network side need send to the user who is in idle condition under the situations such as downlink grouped data bag at the user terminal that is in idle condition, user terminal need be transformed into state of activation from idle condition.Packet data package here such as PDU, and packet data package can comprise data, also can comprise signaling.
User terminal is transformed into the state of activation process from idle condition, and access network node need obtain all session management contexts of user terminal.Access network node can obtain all session management contexts of user terminal from core-network side, as core net node all session management contexts of this user terminal is set up request message transmission to access network node by context.The particular content that comprises in the session management context can be the content that comprises in the session management context of the prior art, and embodiment of the present invention is the particular content that comprises of limiting session managing context not.
Access network node is set up context in this locality after receiving all session management contexts of this user terminal, and is each the RAB configured tunneling technique in all session management contexts, is each RAB configured tunneling technique sign etc.
User terminal is transformed into state of activation procedure declaration user terminal from idle condition need transmit the ascending packet data bag, and perhaps user terminal need receive the downlink grouped data bag, so, the tunnel that access network node also needs definite this state exchange to use.Access network node can be determined the tunnel that needs use according to the user terminal signal transmitted, and access network node also can be determined the tunnel that needs use according to the core-network side signal transmitted.The information here can be the loaded state indication information element, also can be radio bearer ID, can also be RAB ID etc.Access network node is this tunnel distributing resource after having determined the tunnel according to the information that receives, and sets up the radio bearer between itself and the user terminal, make/the downlink grouped data bag can transmit between user terminal and access network node.Equally, core-network side also needs to determine the tunnel of this service needed use.The downlink data that core-network side can send as required need to determine the tunnel of use, and core-network side also can be determined the tunnel that needs use according to the user terminal signal transmitted.Then, core-network side is this tunnel distributing resource, make/the downlink grouped data bag can transmit between core net and access network node.
Of particular note, radio bearer in the present embodiment and RAB only are for convenience of description and the title that adopts.These two titles of radio bearer and RAB can not limit the embodiment of the present invention applicable scope, the title that promptly in some system, does not perhaps have radio bearer and RAB, but, can not think thus that the technical scheme in the embodiment of the present invention can not be applicable to these systems.Radio bearer in the embodiment of the present invention is meant the carrying between Access Network and the user terminal, and RAB is meant the carrying between Access Network and the core net.Radio bearer and RAB can have identification information, and both signs can be identical, also can be different.Radio bearer and RAB can be referred to as carrying.
After above-mentioned user terminal is transformed into state of activation from idle condition, access network node has obtained all session management contexts of this user terminal, and set up all session management contexts in this locality, but also disposed tunnel information for each RAB in all session management contexts.Like this, when the user terminal that is in state of activation need carry out other business and context that should the business correspondence be access network node obtained context the time, access network node does not need to obtain corresponding context from core-network side again, but directly be this business correspondence the tunnel distributing resource, and set up and user terminal between radio bearer get final product.That is to say, when business that user terminal need carry out for used when professional before it, embodiment of the present invention has been avoided access network node Signalling exchange that to be the tunnel information that obtains the RAB of being correlated with, QoS parameter etc. carry out with core-network side.Other business here can send the business of ascending packet data bag for user terminal, also can send the business of downlink grouped data bag for core-network side to user terminal.And, when user terminal carries out other business at needs, can directly send request as send radio bearer foundation request, and not need to send service request to core-network side to access network node; Access network node is after receiving radio bearer foundation request, directly set up radio bearer and also be the corresponding tunnel Resources allocation, afterwards, UE promptly can send the ascending packet data bag by radio bearer, and this ascending packet data bag can be by radio bearer, distributed the tunnel transmission of resource to core-network side.Core net need be when user terminal sends the downlink grouped data bag, can directly be the corresponding tunnel Resources allocation, and with the tunnel transmission of downlink grouped data bag by having distributed resource to access network node, access network node is after receiving the downlink grouped data bag, set up again and user terminal between radio bearer, afterwards, the downlink grouped data bag can be by radio bearer transmissions to user terminal.
Below in conjunction with accompanying drawing to the RAB in the embodiment of the present invention set up process, the process of carrying out the packet data package transmission according to the RAB of setting up is described.
The flow process that when MS initiated Service Request flow process, RAB set up flow process, carry out the packet data package transmission according to the RAB of setting up as shown in Figure 1.
Among Fig. 1, step 1, MS (user terminal) send business request information by the wireless connections of setting up to core network control surface node.Core network control surface node such as MME.Service request type in this business request information can be for signaling, also can be data.If the service request type is data, then MS can carry " loaded state indication information element " in the business request information, and this cell can be used to indicate the RAB of needs transmission ascending packet data bag.
The context that step 3, access network node issue according to core network control surface node is set up all session management contexts that request/access bearer sets up in the message such as request and is set up the context that this MS is correlated with in this locality, and according to setting up corresponding radio bearer between loaded state indication information element in the message and the MS.Setting up the process of radio bearer in the step 3 also can carry out after step 4 or step 5.
The relevant context of this MS that step 4, access network node are set up according to this locality, for each RAB distributes corresponding Access Network side tunnel ID, and according to core-network side tunnel ID and corresponding core net user plane node configuration uplink tunnel; Then, access network node reports by response message the tunnel ID and the access network node address of Access Network side to core network control surface node.Response message is finished in response message here such as context foundation or response message etc. is finished in access bearer foundation.
After the wireless access resource of all carryings of having set up this MS by above-mentioned method shown in Figure 1, MS under state of activation to other have bearer context information, but when to the carrying of the radio bearer of access network node, not sending the ascending packet data bag, the transmission course of ascending packet data bag comprises: MS utilizes Access Layer signaling such as the radio bearer request of setting up to report corresponding carrying ID or loaded state indication information element to access network node, and carrying ID or loaded state indication information element can be used to indicate the carrying of needs transmission ascending packet data bag.Access network node is after receiving carrying ID or loaded state indication information element, search the contextual information of respective wireless access bearer in this locality, then according to the RAB resource on the configuration S1-U interface such as the qos parameter in the contextual information that finds, and and user terminal between set up corresponding radio bearer.User terminal sends the ascending packet data bag by the radio bearer of setting up to access node, and access network node transfers to core net user plane node by the RAB that has disposed resource with the ascending packet data bag.Core net user plane node can be searched corresponding wireless access bearing sign ID and qos parameter etc. according to the Tunnel Identifier ID of this ascending packet data bag correspondence that receives, and according to the tunnel configuration resource for core-network side on the S1-U interface such as the qos parameter that finds.Core net user plane node sends this ascending packet data bag by the core-network side tunnel that has disposed resource.
From the description of above-mentioned execution mode as can be known, because embodiment of the present invention is transformed into the state of activation process at user terminal from idle condition, set up the context of each RAB in the Access Network side, and distributed tunnel ID for each RAB, so, when the subsequent user terminal need be used other RAB professional, the Access Network side no longer needs to set up with core-network side the information interactive process of RAB, thereby avoided MS to send the business request information of data type, core net is initiated corresponding RAB according to business request information and is assigned, access network node is set up the process of corresponding radio bearer, has avoided information interaction as much as possible, shortened the time delay of setting up RAB as much as possible.
The flow process that when network side was initiated Service Request flow process, RAB set up flow process, carry out the packet data package transmission according to the RAB of setting up as shown in Figure 2.
Among Fig. 2, step 1, core net user plane node send carrying to core network control surface node and set up request or message such as bearer reconstruction request or downlink grouped data bag arrival notice after receiving the downlink grouped data bag.Carry the loaded state indication information element in the above-mentioned message, this loaded state indication information element can be used to indicate the RAB of needs transmission downlink grouped data bag.
In above-mentioned flow process at Fig. 2 is described, the core network control surface node if the user grouping packet terminates, the step 1 in the then above-mentioned flow process has not just existed, and directly carries out above-mentioned steps 2.At this moment, the loaded state indication information element is produced by core network control surface node.
After the wireless access resource of all carryings of having set up this MS by above-mentioned method shown in Figure 2, network side other of MS under state of activation have bearer context information, but when to the carrying of the radio bearer of access network node, not sending the downlink grouped data bag, the transmission course of downlink grouped data bag comprises: after descending packet data package transfers to core net user plane node, core net user plane node can be according to the corresponding QoS parameter of RAB information searching of downlink grouped data bag etc., and according to the RAB resource allocation for core-network side on the S1-U interface such as the QoS parameter that finds.Then, core net user plane node is sent to access network node with the downlink grouped data bag by the tunnel that has disposed resource.After access network node receives the downlink grouped data bag, Tunnel Identifier ID according to this downlink grouped data bag of transmission searches corresponding bearing identification ID and qos parameter etc., access network node is the RAB resource allocation of Access Network side on the S1-U interface according to the information such as qos parameter that find, and the access network node here is the transmission that the resource of RAB configuration can be used for the ascending packet data bag.Access network node also need to set up and user terminal between radio bearer.Access network node passes through the radio bearer transmissions of foundation to user terminal with the downlink grouped data bag.
From above-mentioned description at Fig. 2 execution mode as can be known, because embodiment of the present invention is transformed into the state of activation process at user terminal from idle condition, set up the context of each RAB in the Access Network side, and distributed tunnel ID for each RAB, so, when the subsequent network side need be used other RAB professional, the Access Network side no longer needs to set up with core-network side the information interactive process of RAB, thereby avoided the core net user face nodes to send carrying and set up request/bearer reconstruction request/downlink grouped data bag arrival notice message, core network control surface node sends context and sets up request message, core network control surface node sends message such as upgrading the session context indication, access network node is set up the process of corresponding radio bearer, has avoided information interaction as much as possible, shortened the time delay of setting up RAB as much as possible.
Be that example describes the radio bearer of embodiment of the present invention, the process of setting up of RAB with the 3GPP evolution network framework below.
In the Service Request flow process that MS initiates, the process of setting up of radio bearer, RAB as shown in Figure 3.
Among Fig. 3, between step 1, the user terminal that is in idle condition and Access Network, set up wireless connections.
Information in the establishment context request message that step 6, Access Network receive and the storage core net issues.Access network node eNB sets up the related context of this user terminal in this locality, and sets up corresponding radio bearer according to loaded state indication information element and user terminal.Setting up the process of radio bearer in the step 6 also can carry out after step 7 or step 8.
Step 8, core network control surface entity MME set up the situation that message informing core net user entity UPE carrying is set up of finishing according to the context that receives, as notifying core net user entity UPE the situation that carrying is set up by upgrading the session context request message, the core net user entity UPE here is as service SAE gateway node.The content of core network control surface entity MME notice comprises: the tunnel ID of all Access Network sides, access network node eNB address and the loaded state indication information element that obtains from user terminal.Corresponding service SAE gateway node is according to the tunnel ID of the Access Network side that receives and the downlink tunnel of these all RABs of user terminal of access network node eNB address configuration, and be corresponding RAB resource allocation as the configuration qos parameter according to the loaded state indication information element that receives etc.At last, service SAE gateway node sends to core network control surface node MME and upgrades the session context response message.
Step 9, user terminal send the ascending packet data bag by radio bearer, the RAB of setting up to core net.Step 9 can be after step 8, if set up radio bearer in the step 6, then step 9 also can continue after step 6.
If user terminal need transmit up signaling, then above-mentioned step 1 in describing at Fig. 3 should connect for setting up signaling, and then user terminal can finish the back in safety mode process and sends up signaling.
Network side is initiated in the service request flow process, and the idle condition user data terminates under core net user entity such as Serving SAE GW (the service SAR gateway) application scenarios, and the process of setting up of radio bearer, RAB as shown in Figure 4.
Among Fig. 4, receive the downlink grouped data bag as service SAR gateway at step 1, core net user entity UPE.
Information interaction is carried out in step 4, user terminal response paging between user terminal and the Access Network, eat dishes without rice or wine to connect with foundation, promptly sets up wireless connections.
After step 6, core network control surface entity MME receive business request information, carry out safe procedures, to finish safety certification to user terminal.
The user terminal contextual information that step 8, core network control surface entity MME need Access Network is set up request message by context and is sent to Access Network.MM Context information and the bearer related information that request message comprises user terminal set up in context, and for example context is set up in the request message and can be comprised: user's permanent identification IMSI, the roaming restriction strategy that needs the user terminal that Access Network uses and relevant all the session management contexts and the loaded state indication information element of AMBR parameter, this user terminal of network selecting strategy, user terminal.Need the roaming restriction strategy and the network selecting strategy of the user terminal of Access Network use to tabulate as the PLMN that allows or the limited subscriber terminal is selected.All session management contexts that user terminal is relevant can comprise: all wireless access bearing sign ID, the qos parameter that the service SAE gateway node address that the core-network side tunnel ID that each wireless access bearing sign is corresponding respectively, each wireless access bearing sign are corresponding respectively and each wireless access bearing sign are corresponding respectively.
The information in the request message set up in the context that step 9, Access Network receive and the preservation core net issues.Access network node such as eNB set up the related context of this user terminal in this locality, and initiate the loading establishing process eat dishes without rice or wine according to the loaded state indication information element, to set up the radio bearer between itself and the user terminal.Setting up the process of radio bearer in the step 9 also can carry out after step 10, step 11 or step 12.
Step 10, access network node distribute the tunnel ID of corresponding Access Network side for each RAB according to the information of all RABs in the relevant session management context of this user terminal that receives, and according to the core-network side tunnel ID of each RAB and the service SAE gateway node address configuration uplink tunnel of correspondence.Then, the tunnel ID and the access network node address information of above-mentioned Access Network side are finished transmission of messages to core network control surface entity MME by context foundation.
Step 11, core network control surface entity MME set up according to the context that receives and finish the message informing core net user entity UPE situation that carrying is set up as service SAE gateway, as coming notification service SAE gateway node by upgrading the session context Indication message.The content of core network control surface entity MME notice comprises: the tunnel ID of all Access Network sides, access network node eNB address and the loaded state indication information element that obtains from user terminal.Corresponding service SAE gateway node is according to the tunnel ID of the Access Network side that receives and the downlink tunnel of these all RABs of user terminal of access network node eNB address configuration, and for the tunnel configuration resource of the downlink grouped data bag correspondence that receives as the configuration qos parameter etc.Be tunnel configuration after the resource, service SAE gateway node can send response message to core network control surface node MME, also can not send response message to core network control surface node MME.
Network side is initiated in the service request flow process, and the idle condition user data terminates under the core network control surface node MME scene, and the process of setting up of radio bearer, RAB as shown in Figure 5.
Information interaction is carried out in step 3, user terminal response paging between user terminal and the Access Network, eat dishes without rice or wine to connect with foundation, promptly sets up wireless connections.
After step 5, core network control surface entity MME receive business request information, carry out safe procedures, to finish safety certification to user terminal.
The user terminal contextual information that step 7, core network control surface entity MME need Access Network is set up request message by context and is sent to Access Network.MM Context information and the bearer related information that request message comprises user terminal set up in context, and for example context is set up in the request message and can be comprised: user's permanent identification IMSI, the roaming restriction strategy that needs the user terminal that Access Network uses and relevant all the session management contexts and the loaded state indication information element of AMBR parameter, this user terminal of network selecting strategy, user terminal.Need the roaming restriction strategy and the network selecting strategy of the user terminal of Access Network use to tabulate as the PLMN that allows or the limited subscriber terminal is selected.All session management contexts that user terminal is relevant can comprise: all wireless access bearing sign ID, the qos parameter that the service SAE gateway node address that the core-network side tunnel ID that each wireless access bearing sign is corresponding respectively, each wireless access bearing sign are corresponding respectively and each wireless access bearing sign are corresponding respectively.
The information in the request message set up in the context that step 8, Access Network receive and the preservation core net issues.Access network node such as eNB set up the related context of this user terminal in this locality, and initiate the loading establishing process eat dishes without rice or wine according to the loaded state indication information element, to set up the radio bearer between itself and the user terminal.Setting up the process of radio bearer in the step 8 also can carry out after step 9, step 10, step 11 or step 12.
Step 9, access network node distribute the tunnel ID of corresponding Access Network side for each RAB according to the information of all RABs in the relevant session management context of this user terminal that receives, and according to the core-network side tunnel ID of each RAB and the service SAE gateway node address configuration uplink tunnel of correspondence.Then, the tunnel ID and the access network node address information of above-mentioned Access Network side are finished transmission of messages to core network control surface entity MME by context foundation.
Step 10, core network control surface entity MME receive context set up finish message after, dispose interim downlink tunnel, and issue the downlink grouped data bag of its buffer memory by described interim downlink tunnel.
Step 11, the core network control surface entity MME notice core net user entity UPE situation that carrying is set up as service SAE gateway are as notifying the service SAE among the core net user entity UPE gateway node by upgrading the session context Indication message.The content of core network control surface entity MME notice comprises: the tunnel ID of all Access Network sides, access network node eNB address and the loaded state indication information element that obtains from user terminal.Corresponding service SAE gateway node is according to the tunnel ID of the Access Network side that receives and the downlink tunnel of these all RABs of user terminal of access network node eNB address configuration, and is the RAB resource allocation of the downlink grouped data bag correspondence that receives.At last, service SAE gateway node sends response message to core network control surface node MME.
Utilize above-mentioned set up RAB and radio bearer as Fig. 3, Fig. 4 or method shown in Figure 5 after, user terminal under state of activation to other have bearer context information, but when not sending the ascending packet data bag to the carrying of the radio bearer of access network node eNB, the packet data package transmission course as shown in Figure 6.
Among Fig. 6, step 1, user terminal send radio bearer to access network node and set up request, and radio bearer is set up in the request and carried corresponding carrying ID or loaded state indication information element.The loaded state indication information element can be used to indicate needs to transmit the ascending packet data bag on which radio bearer.
Utilize above-mentioned set up RAB and radio bearer as Fig. 3 or Fig. 4 or method shown in Figure 5 after, network side to the user terminal under the state of activation, other have bearer context information, but when not sending the downlink grouped data bag to the carrying of the radio bearer of access network node eNB, the packet data package transmission course as shown in Figure 7.
Among Fig. 7, step 1, downlink grouped data bag transfer to core net user plane node as service SAE gateway node, service SAE gateway node is according to the information such as RAB information searching QoS parameter of downlink grouped data bag, and according to the information such as QoS parameter that find the tunnel of S1-U interface core-network side carried out resource distribution.Then, service SAE gateway node is sent to access network node eNB with the downlink grouped data bag that the receives tunnel by above-mentioned resource allocation.
After step 2, access network node eNB receive this downlink grouped data bag, because the radio bearer of this downlink grouped data bag correspondence not, therefore, the described packet data package of access network node eNB buffer memory.Access network node eNB searches corresponding wireless access bearing sign ID and qos parameter according to the Tunnel Identifier ID of this downlink grouped data bag of transmission.The qos parameter that access network node eNB basis finds is the RAB resource allocation on the S1-U interface, and sets up corresponding radio bearer with terminal.
In the execution mode of above-mentioned packet data package transmission method was described, being transformed into the state of activation application scenarios with user terminal from idle condition was that example describes.Under other application scenarios, packet data package transmission course and foregoing description are basic identical, no longer describe in detail at this.
From the description of above-mentioned packet data package transmission method execution mode as can be seen: because embodiment of the present invention providing in the business procedure for user terminal, all session management contexts of this user terminal have been obtained, and all distributed the tunnel for each RAB in all session management contexts, therefore, when follow-up other RAB that needs use to be in the user terminal of state of activation is realized business, the tunnel that distributes before can utilizing, avoided user terminal and network side for setting up the Signalling exchange that RAB carries out, thereby not only saved valuable network side resource, also avoided the RAB setup delay that causes owing to Signalling exchange.Because embodiment of the present invention has reduced the RAB setup delay as much as possible, therefore, improved user's service impression.
Grouped data packet transmission system to embodiment of the present invention describes below.
Grouped data packet transmission system in the embodiment of the present invention comprises: first module, second module, three module, four module, the 5th module, the 6th module, the 7th module and the 8th module.Wherein, first module, second module, four module and the 7th module are arranged at the Access Network side, and three module, the 5th module, the 6th module and the 8th module are arranged at core-network side.
First module is mainly used at least two that obtain user terminal---as all session management contexts.First module can be transformed into the state of activation process from idle condition at user terminal, obtain this user terminal at least two---as all session management contexts.First module can be obtained all session management contexts of this user terminal from the 5th module, receive the next context of the 5th module transmission as first module and set up request message, and set up a plurality of session management contexts that obtain this user terminal the request message from context.First module can be arranged in the access network node.
It is each RAB configuration Access Network side tunnel in the session management context that obtains of first module that second module is mainly used in.Can set up context in this locality according to the session management context that first module is obtained as second module, and be each RAB configuration Access Network side Tunnel Identifier etc. in the session management context, second module can also be back to core-network side for Access Network side Tunnel Identifier and access network node address information that each RAB disposes with it.Second module can be arranged in the access network node.
Three module is mainly used in to each the RAB configuration core-network side tunnel in the session management context of user terminal, is each RAB configuration core-network side Tunnel Identifier as three module Tunnel Identifier that transmission comes according to second module and access network node address information etc.Three module can be arranged in the core net user entity.
Four module is mainly used in the packet data package of transmitting for needs and sets up radio bearer, and need to determine the Access Network side tunnel of transmitting grouped data bag, then, and for needing the Access Network side tunnel distributing resource of transmitting grouped data bag.Four module can be determined the Access Network side tunnel that needs use according to the user terminal signal transmitted, and four module also can be determined the Access Network side tunnel that needs use according to the core-network side signal transmitted.The information here can be the loaded state indication information element, also can be radio bearer ID, can also be for RAB ID etc., set up the tunnel that loaded state indication information element in the request message is determined the needs use as the four module context that transmission comes according to the 5th module.Four module can be arranged at access network node.
The 5th module is mainly used in the session management context of storage user terminal, and provide at least two of user terminal for first module and three module---as all session management contexts, as the 5th module after the carrying that receives core-network side is set up request message or is received the downlink grouped data bag or receive the service request that user terminal sends, with at least two of user terminal---set up request message transmission to the first module as all session management contexts by context.The 5th module can also be carried at context with the loaded state indication information element and set up in the request message when first module sends the session management context of user terminal.The 5th module can be arranged in the core network control surface entity.
The 6th module is mainly used in definite RAB that needs the packet data package correspondence of transmission, and is the core-network side tunnel distributing resource of this RAB correspondence.The 6th module can be determined the RAB that needs use according to the user terminal signal transmitted.The downlink grouped data bag that the 6th module also can be transmitted as required need to determine the RAB of use.The information here can be the loaded state indication information element.The 6th module can be arranged in the core net user entity.
The 7th module and the 8th module are mainly used in the packet data package of carrying out between user terminal and the core net in radio bearer, tunnel according to above-mentioned foundation and transmit.Receive the ascending packet data bag that the user terminal transmission comes as the 7th module by radio bearer, and with this ascending packet data bag by eight modules of the tunnel transmission to the between Access Network and the core net; For another example the 8th module with the downlink grouped data bag that receives by seven modules of the tunnel transmission to the between Access Network and the core net, the 7th module with the downlink grouped data bag that receives by radio bearer transmissions to user terminal.The 7th module can be arranged at access network node, and the 8th module can be arranged in the core net user entity.
Embodiment of the present invention provides a kind of network equipment, and this network equipment is an access network node equipment, is provided with first module, second module, four module and the 7th module in this network equipment.Operation that first module, second module, four module and the 7th module are carried out respectively such as the description in above-mentioned system implementation mode and the method execution mode are not described in detail at this.Because access network node equipment is transformed into from idle condition at user terminal the process such as state of activation, obtain a plurality of session management contexts of user terminal and distributed tunnel ID etc. for each RAB in the context, so, when follow-up needs use other RAB of user terminal to realize business, access network node equipment no longer needs to set up with core-network side the information interactive process of RAB, thereby has avoided information interaction as much as possible, shortened the time delay of setting up RAB as much as possible.
Embodiment of the present invention also provides a kind of network equipment, and this network equipment is a core network control surface node device, as MME etc.Be provided with the 5th module in this network equipment.Operation that the 5th module is carried out such as the description in above-mentioned system implementation mode and the method execution mode are not described in detail at this.Because core network control surface node is transformed into from idle condition at user terminal the process such as state of activation, with a plurality of session management context transfer of user terminal to the Access Network side, so, when follow-up needs use other RAB of user terminal to realize business, avoided the Access Network side to obtain the contextual process of corresponding session management, thereby avoided information interaction as much as possible, shortened the time delay of setting up RAB as much as possible from core-network side.
Embodiment of the present invention also provides a kind of network equipment, and this network equipment is a core net user face nodes equipment, as serving SAE gateway etc.Be provided with three module, the 6th module, the 8th module in this network equipment.Description in the operation that three module, the 6th module, the 8th module are carried out respectively such as above-mentioned system implementation mode and the method execution mode is not described in detail at this.Owing to be transformed into from idle condition at user terminal the process such as state of activation, the core net user face nodes is that each RAB in a plurality of session management contexts of user terminal has distributed tunnel ID etc., so, when follow-up needs use other RAB of user terminal to realize business, the core net user face nodes no longer needs to set up with core-network side the information interactive process of RAB, thereby has avoided information interaction as much as possible, shortened the time delay of setting up RAB as much as possible.
Though described the present invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away from spirit of the present invention, and the claim of application documents of the present invention comprises these distortion and variation.
Claims (11)
1. a packet data package transmission method is characterized in that, described method comprises:
Obtain at least two session management contexts of user terminal;
Be each the RAB configured tunneling technique in the described session management context;
For the packet data package of needs transmission is set up radio bearer, and, transmit according to the packet data package that the tunnel after described radio bearer, the Resources allocation carries out between user terminal and the core net for needing the tunnel distributing resource of the described packet data package of transmission.
2. the method for claim 1 is characterized in that, the described contextual step of at least two session managements of obtaining user terminal comprises:
Forward to from idle condition the state of activation process at user terminal, access network node obtains at least two session management contexts of user terminal.
3. method as claimed in claim 2 is characterized in that, the step that described packet data package for the needs transmission is set up radio bearer comprises:
Access network node is according to the radio bearer between loaded state indication information foundation that receives and the user terminal; Described loaded state indication information is used to indicate the carrying of the packet data package of needs transmission.
4. method as claimed in claim 3 is characterized in that: described core net receives the loaded state indication information that the user terminal transmission comes, and described loaded state indication information is transferred to access network node; Perhaps described core net transfers to access network node with the loaded state indication information of its generation.
5. method as claimed in claim 2, it is characterized in that, described is to need the packet data package of transmission to set up radio bearer, and for needing the tunnel distributing resource of the described packet data package of transmission, the step of carrying out the packet data package transmission between user terminal and the core net according to the tunnel after described radio bearer, the Resources allocation comprises:
When being in described user terminal under the state of activation and need sending the ascending packet data bag, the local session management context of setting up is searched in the request that access network node sends according to described user terminal;
Access network node is that needs transmit the Access Network side uplink tunnel resource allocation of described ascending packet data bag and set up radio bearer according to the session management context that finds, and by described radio bearer, uplink tunnel the ascending packet data bag of user terminal is transferred to core net.
6. method as claimed in claim 5 is characterized in that, carrying ID and/or loaded state indication information element in the request that transmission comes according to user terminal of described access network node are searched the local session management context of setting up.
7. method as claimed in claim 2, it is characterized in that, described is to need the packet data package of transmission to set up radio bearer, and for needing the tunnel distributing resource of the described packet data package of transmission, the step of carrying out the packet data package transmission between user terminal and the core net according to the tunnel after described radio bearer, the Resources allocation comprises:
Core net need be when the user terminal under being in state of activation sends the downlink grouped data bag, core net node is the core-network side downlink tunnel resource allocation that needs the described packet data package of transmission, and described downlink grouped data bag is transferred to access network node by described downlink tunnel;
Access network node receives described downlink grouped data bag, and searches the local session management context of setting up according to the RAB of described downlink grouped data bag correspondence;
Access network node is that described downlink grouped data bag is set up radio bearer according to the session management context that finds, and is the Access Network side uplink tunnel resource allocation of described radio bearer correspondence;
Access network node sends described downlink grouped data bag by described radio bearer to user terminal.
8. grouped data packet transmission system, it is characterized in that, described system comprises: Access Network side and core-network side, described Access Network side is provided with first module, second module, four module and the 7th module, and described core-network side is provided with three module, the 5th module, the 6th module and the 8th module;
First module: at least two session management contexts that are used to obtain user terminal;
Second module: be used to each RAB configuration Access Network side tunnel in the session management context that described first module obtains;
Three module: each the RAB configuration core-network side tunnel that is used to described user terminal;
Four module: for the packet data package of needs transmission is set up radio bearer, and for needing the Access Network side tunnel distributing resource of the described packet data package of transmission;
The 5th module: be used to store the session management context of user terminal, and at least two session management contexts of user terminal are provided for first module;
The 6th module: be used to need to determine the core-network side tunnel of transmitting grouped data bag, and for needing the core-network side tunnel distributing resource of transmitting grouped data bag;
The 7th module and the 8th module: the packet data package that is used for carrying out between user terminal and the core net in radio bearer, tunnel according to described foundation is transmitted.
9. a network equipment is characterized in that, the described network equipment is positioned at the Access Network side, and the described network equipment is provided with first module, second module, four module and the 7th module;
First module: at least two session management contexts that are used to obtain user terminal;
Second module: be used to each RAB configuration Access Network side tunnel in the session management context that described first module obtains;
Four module: for the packet data package of needs transmission is set up radio bearer, and for needing the Access Network side tunnel distributing resource of the described packet data package of transmission;
The 7th module: be used for the radio bearer according to described foundation, described Access Network side tunnel and carry out the packet data package transmission.
10. a network equipment is characterized in that, is provided with the 5th module in the described network equipment;
The 5th module: be used to store the session management context of user terminal, and at least two session management contexts of user terminal are sent to the Access Network side.
11. a network equipment is characterized in that, is provided with three module, the 6th module and the 8th module in the described network equipment;
Three module: each the RAB configuration core-network side tunnel that is used to described user terminal;
The 6th module: be used to need to determine the core-network side tunnel of transmitting grouped data bag, and for needing the core-network side tunnel distributing resource of transmitting grouped data bag;
The 8th module: be used for carrying out the packet data package transmission according to described core-network side tunnel.
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| CN2007100647524A CN101272315B (en) | 2007-03-23 | 2007-03-23 | Packet data package transmission method, system and network appliance |
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