CN103813300A - Data transmission method, device and system - Google Patents

Data transmission method, device and system Download PDF

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Publication number
CN103813300A
CN103813300A CN201210457485.8A CN201210457485A CN103813300A CN 103813300 A CN103813300 A CN 103813300A CN 201210457485 A CN201210457485 A CN 201210457485A CN 103813300 A CN103813300 A CN 103813300A
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China
Prior art keywords
small data
signaling
core net
access network
network equipment
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CN201210457485.8A
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Chinese (zh)
Inventor
段小嫣
金辉
衣强
高晨亮
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Huawei Device Co Ltd
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Huawei Device Co Ltd
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Priority to CN201210457485.8A priority Critical patent/CN103813300A/en
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Abstract

The embodiment of the invention provides a data transmission method, device and system. The method comprises that a network access device receives a first signaling containing small data and sent by user equipment (UE); the network access device obtains the small data according to the first signaling; the network access device sends the small data to a core network service device to enable the core network service device to send the small data to a packet data network through a core network gateway device. According to the data transmission method, device and system, the small data is carried by the signaling for transmission, signaling interaction due to establishment and release of connection for small data transmission can be reduced, and further network problems due to 'signaling storm' can be avoided.

Description

Data transmission method, equipment and system
Technical field
The embodiment of the present invention relates to the communication technology, relates in particular to a kind of data transmission method, equipment and system.
Background technology
Along with the development of Internet technology, there is increasing permanent online application (Always-online Applications), for example MSN, QQ, the applications client (Application Client) of Facebook etc. operates in subscriber equipment (User Equipment is called for short UE).
According to the realization mechanism of existing instant messaging; the applications client (Application Client) of the upper operation of UE is in order to guarantee the communication connection between application server (Application Server); need to send heartbeat message (Keep-alive Message) to application server, heartbeat message also can be described as keep-alive message.The interval time that heartbeat message is sent out from several seconds to a few minutes not etc.In order to transmit the similar small datas such as heartbeat message, UE need to carry out Signalling exchange with communication network, transmits those small datas to set up dedicated channel.If UE does not transmit and receive data within the inertia time setting in advance (Inactivity Timer), communication network can carry out Signalling exchange with UE, with the carrying of setting up before discharging.
If the applications client of the permanent online application of a large amount of UE transmits the similar small datas such as a large amount of heartbeat message, UE need to frequently carry out Signalling exchange to set up and to discharge for transmitting the carrying of small data with communication network, cause the generation of a large amount of signalings, bring very large signaling traffic load to communication network, also be referred to as " signaling storm " (Signalling Storm), cause the congested even paralysis of communication network.Therefore, need to there is a kind of mechanism to reduce the Signalling exchange that above-mentioned small data transmission is brought, thereby reduce the signaling traffic load of communication network, the network problem of avoiding " signaling storm " to cause.
Summary of the invention
The embodiment of the present invention provides a kind of data transmission method, equipment and system.
First aspect, the first data transmission method that the embodiment of the present invention provides comprises:
Access network equipment receives the first signaling that comprises small data that user equipment (UE) sends; Described access network equipment obtains described small data according to described the first signaling; Described small data is sent to core net service equipment by described access network equipment, so that described core net service equipment sends to packet data network by core net gateway device by described small data.
In the possible implementation of the first of first aspect, describedly obtain described small data according to described the first signaling and comprise: described access network equipment obtains described small data from described the first signaling.
The implementation possible according to the first, in the possible implementation of the second, described access network equipment obtains described small data and comprises from described the first signaling: if described the first signaling is not used Non-Access Stratum to encrypt, described access network equipment obtains described small data from described the first signaling.
According to first or the possible implementation of the second, in the third possible implementation, described access network equipment obtains described small data and comprises from described the first signaling: described access network equipment is according to the first indication comprising in described the first signaling, from described the first signaling, obtain described small data, described the first indication is used to indicate described the first signaling and comprises described small data.
In the 4th kind of possible implementation of first aspect, describedly obtain described small data according to described the first signaling and comprise: described the first signaling is sent to core net control appliance by described access network equipment, so that described core net control appliance obtains described small data and described small data is carried in the second signaling and is sent to described access network equipment from described the first signaling; Access network equipment receives the second signaling that comprises described small data that described core net control appliance sends, and from described the second signaling, obtains described small data.
According to the 4th kind of possible implementation, in the 5th kind of possible implementation, described access network equipment sends to described core net control appliance to comprise described the first signaling: if described the first signaling is used Non-Access Stratum to encrypt, described the first signaling is sent to core net control appliance by described access network equipment.
According to the 4th or the 5th kind of possible implementation, in the 6th kind of possible implementation, described access network equipment obtains described small data from described the second signaling, comprise: described access network equipment, according to the second indication comprising in described the second signaling, obtains described small data from described the second signaling; Described the second indication is used to indicate described the second signaling and comprises described small data.
Plant one of possible implementation according to the first six of first aspect or first aspect, in the 7th kind of possible implementation, before described access network equipment receives described first signaling that comprises described small data of described UE transmission, also comprise: described access network equipment receives the radio resource control RRC connection request message that described UE sends, the connection comprising in described RRC connection request message is set up former because small data transmission; Described access network equipment obtains described small data according to described the first signaling, comprising: described access network equipment is set up reason and described the first signaling according to described connection, obtains described small data.
Plant one of possible implementation according to the first seven of first aspect or first aspect, in the 8th kind of possible implementation, described small data is sent to described core net service equipment by described access network equipment, comprise: described access network equipment is according to address and the Tunnel End Point Identifier of the described core net service equipment retaining, and the described small data obtaining from described the first signaling sends to described core net service equipment; Or described access network equipment, according to address and the Tunnel End Point Identifier of the described core net service equipment comprising in described the second signaling, sends to described core net service equipment by the described small data obtaining from described the second signaling.
Plant one of possible implementation according to the first eight of first aspect or first aspect, in the 9th kind of possible implementation, in described the first signaling and/or described the second signaling, also comprise priority indication information.
According to one of front nine kinds of possible implementations of first aspect or first aspect, in the tenth kind of possible implementation, described small data comprises with at least one business or applies corresponding small data.
According to one of front ten of first aspect or first aspect kinds of possible implementations, in the 11 kind of possible implementation, described small data is sent to core net service equipment by described access network equipment, so that described core net service equipment sends to packet data network to comprise described small data by core net gateway device: described small data is sent to general packet radio service gprs service node SGSN by described access network equipment, so that described SGSN sends to packet data network by GPRS gateway node GGSN by described small data.
According to one of front 11 kinds of possible implementations of first aspect or first aspect, in the 12 kind of possible implementation, before described access network equipment receives described first signaling that comprises small data of described UE transmission, also comprise: described access network equipment sends connection release message to described UE, and starts timer; Described access network equipment does not send UE context releasing request to Mobility Management Entity MME within the timing period of described timer, retains address and the Tunnel End Point Identifier of described core net service equipment.
According to one of front 11 kinds of possible implementations of first aspect or first aspect, in the 13 kind of possible implementation, before described access network equipment receives described first signaling that comprises small data of described UE transmission, also comprise: described access network equipment sends UE context releasing request, the indication information that comprises the contextual information that retains described UE in described UE context releasing request to described core net control appliance; Described access network equipment, according to described indication information, retains the contextual information of described UE; Or described access network equipment receives the UE context release command that core net control appliance sends, the indication information that comprises the contextual information that retains described UE in the release command of described UE context; Described access network equipment, according to described indication information, retains the contextual information of described UE.
According to the 13 kind of possible implementation, in the 14 kind of possible implementation, described access network equipment retains the contextual information of described UE, comprising: described access network equipment retains address and the Tunnel End Point Identifier of described core net service equipment.
Second aspect, the second data transmission method that the embodiment of the present invention provides comprises:
Core net control appliance receives the first signaling that comprises small data that access network equipment sends; Described core net control appliance sends the second signaling to described access network equipment, in described the second signaling, comprise address and the Tunnel End Point Identifier of described small data, core net service equipment, so that described access network equipment obtains described small data and according to the address of described core net service equipment and Tunnel End Point Identifier, sends described small data to described core net service equipment from described the second signaling.
The third aspect, the third data transmission method that the embodiment of the present invention provides comprises:
Core net control appliance receives the first signaling that comprises small data that user equipment (UE) sends; Described core net control appliance obtains described small data from described the first signaling; Described core net control appliance sends the 3rd signaling that comprises described small data to core net service equipment, so that described core net service equipment sends to packet data network via core net gateway device by described small data.
In the possible implementation of the first of the third aspect, described core net control appliance sends the 3rd signaling that comprises described small data to described core net service equipment, so that described core net service equipment sends to packet data network to comprise described small data by core net gateway device: described core net control appliance sends described the 3rd signaling that comprises described small data to gateway S-GW, so that described S-GW sends to packet data network by grouped data network gateway PDN GW by described small data.
The implementation possible according to the first of the third aspect or the third aspect, in the possible implementation of the second, described core net control appliance receives the first signaling that comprises small data that described UE sends, comprise: described core net control appliance receives the request message of activating business that described UE sends, in the described request message of activating business, comprise the 3rd indication and small data, in the request message of activating business described in described the 3rd indication is used to indicate, comprise described small data; Described core net control appliance obtains described small data from described the first signaling, comprising: described core net control appliance, according to described the 3rd indication, obtains described small data from the described request message of activating business; Described core net control appliance sends the 3rd signaling that comprises described small data to described core net service equipment, comprise: described core net control appliance sends to described core net service equipment the carrying request of revising, described modification carrying request comprises the 4th indication and small data, and described the 4th indication is used to indicate in described modification bearing request message and comprises described small data.
In the third possible implementation of the third aspect, described core net control appliance sends the 3rd signaling that comprises described small data to described core net service equipment, so that described core net service equipment sends to packet data network to comprise described small data by core net gateway device: described core net control appliance sends described the 3rd signaling that comprises described small data to general packet radio service gprs service node SGSN, so that described SGSN sends to packet data network via GPRS gateway node GGSN by described small data.
Fourth aspect, the 4th kind of data transmission method that the embodiment of the present invention provides comprises:
Core net service equipment receives the modification that the comprises small data carrying request that core net control appliance sends; Described small data is sent to core net gateway device by described core net service equipment.
In the possible implementation of the first of fourth aspect, before described core net service equipment receives the modification that the comprises small data carrying request of described core net control appliance transmission, also comprise: described core net service equipment receives the release access bearer request that described core net control appliance sends, the indication information that comprises the access network equipment related context information that retains user equipment (UE) in the request of described release access bearer; Described core net service equipment, according to described indication information, retains the access network equipment related context information of described UE.
The implementation possible according to the first, in the possible implementation of the second, described indication information comprises: being used to indicate release cause is the inactive indication information of user.
According to the first or the possible implementation of the second, in the third possible implementation, described core net service equipment retains the access network equipment related context information of described UE, comprising: described core net service equipment retains address information and the endpoint of a tunnel information of the access network equipment of described UE.
The 5th aspect, the access network equipment that the embodiment of the present invention provides comprises:
Receiver, the first signaling that comprises small data sending for receiving user equipment (UE); Processor, for obtaining described small data according to described the first signaling; Transmitter, for described small data is sent to core net service equipment, so that described core net service equipment sends to packet data network by core net gateway device by described small data.
In the possible implementation of the first aspect the 5th, described processor specifically for: from described the first signaling, obtain described small data.
The implementation possible according to the first, in the possible implementation of the second, described processor specifically also for: if described the first signaling do not use Non-Access Stratum encrypt, from described the first signaling, obtain described small data.
According to the first or the possible implementation of the second, in the third possible implementation, described processor also for: comprise according to described the first signaling first indication, from described the first signaling, obtain described small data, described the first indication is used to indicate described the first signaling and comprises described small data.
According to one of first three all possible implementation of the 5th aspect or the 5th aspect, in the 4th kind of possible implementation, described transmitter specifically for: described the first signaling is sent to core net control appliance, so that described core net control appliance obtains described small data and described small data is carried in the second signaling and is sent to described access network equipment from described the first signaling; Described receiver specifically for: receive the second signaling that comprises described small data that described core net control appliance sends; Described processor specifically for: from described the second signaling, obtain described small data.
According to the 4th kind of possible implementation, in the 5th kind of possible implementation, described transmitter specifically also for: if described first signaling use Non-Access Stratum encrypt, described the first signaling is sent to core net control appliance.
According to the 4th kind or the 5th kind of possible implementation, in the 6th kind of possible implementation, described processor also for: comprise according to described the second signaling second indication, from described the second signaling, obtain described small data; Described the second indication is used to indicate described the second signaling and comprises described small data.
Plant one of possible implementation according to the first six of the 5th aspect or the 5th aspect, in the 7th kind of possible implementation, described receiver also for: receive the radio resource control RRC connection request message that described UE sends, the connection comprising in described RRC connection request message is set up former because small data transmission; Described processor also for: set up reason and described the first signaling according to described connection, obtain described small data.
Plant one of possible implementation according to the first seven of the 5th aspect or the 5th aspect, in the 8th kind of possible implementation, described transmitter is also for according to address and the Tunnel End Point Identifier of described core net service equipment retaining, and the described small data obtaining from described the first signaling sends to described core net service equipment; Or described transmitter also, for address and the Tunnel End Point Identifier of the described core net service equipment that comprises according to described the second signaling, sends to described core net service equipment by the described small data obtaining from described the second signaling.
Plant one of possible implementation according to the first eight of the 5th aspect or the 5th aspect, in the 9th kind of possible implementation, described transmitter is also for sending to described small data general packet radio service gprs service node SGSN, so that described SGSN sends to packet data network by GPRS gateway node GGSN by described small data.
According to one of front nine kinds of possible implementations of the 5th aspect or the 5th aspect, in the tenth kind of possible implementation, described transmitter is also for sending connection release message to described UE, and start timer, within the timing period of described timer, do not send UE context releasing request to Mobility Management Entity MME; Described access network equipment also comprises: memory, and for retaining address and the Tunnel End Point Identifier of described core net service equipment.
According to one of front nine kinds of possible implementations of the 5th aspect or the 5th aspect, in the 11 kind of possible implementation, described transmitter also for: send UE context releasing request, the indication information that comprises the contextual information that retains described UE in described UE context releasing request to described core net control appliance; The UE context release command that described receiver also sends for receiving core net control appliance, the indication information that comprises the contextual information that retains described UE in the release command of described UE context; Accordingly, described access network equipment also comprises memory, for according to described indication information, retains the contextual information of described UE.
According to the 11 kind of possible implementation, in the 12 kind of possible implementation, described indication information comprises: being used to indicate release cause is the inactive indication information of user.
According to the 11 kind or the 12 kind of possible implementation, in the 13 kind of possible implementation, described memory is specifically for retaining address and the Tunnel End Point Identifier of described core net service equipment.
The 6th aspect, a kind of core net control appliance that the embodiment of the present invention provides comprises:
Receiver, the first signaling that comprises small data sending for receiving access network equipment; Transmitter, for sending the second signaling to described access network equipment, in described the second signaling, comprise address and the Tunnel End Point Identifier of described small data, core net service equipment, so that described access network equipment obtains described small data and according to the address of described core net service equipment and Tunnel End Point Identifier, sends described small data to described core net service equipment from described the second signaling.
The 7th aspect, the another kind of core net control appliance that the embodiment of the present invention provides comprises:
Receiver, the first signaling that comprises small data sending for receiving user equipment (UE); Processor, for obtaining described small data from described the first signaling; Transmitter, for send the 3rd signaling that comprises described small data to core net service equipment, so that described core net service equipment sends to packet data network by core net gateway device by described small data.
In the possible implementation of the first aspect the 7th, described transmitter specifically for: send described the 3rd signaling that comprises described small data to gateway S-GW, so that described S-GW sends to packet data network by grouped data network gateway PDN GW by described small data.
According to the possible implementation of the first of the 7th aspect or the 7th aspect, in the possible implementation of the second, described receiver specifically for: receive the request message of activating business that described UE sends, in the described request message of activating business, comprise the 3rd indication and described small data, in the request message of activating business described in described the 3rd indication is used to indicate, comprise described small data; Described processor specifically for: according to described the 3rd indication, from the described request message of activating business, obtain described small data; Described transmitter specifically for: send to described core net service equipment the carrying request of revising, described modification carrying request comprises the 4th indication and described small data, and the described the 4th indicates to be used to indicate in described modification bearing request message and comprise described small data.
In the third possible implementation aspect the 7th, described transmitter also for: send described the 3rd signaling that comprises described small data to general packet radio service gprs service node SGSN, so that described SGSN sends to packet data network by GPRS gateway node GGSN by small data.
Eight aspect, a kind of core net service equipment that the embodiment of the present invention provides comprises:
Receiver, the modification that the comprises small data carrying request sending for receiving core net control appliance; Transmitter, for sending to core net gateway device by described small data.
In the possible execution mode of the first of eight aspect, described receiver also for: receive the release access bearer request that core net control appliance sends, the indication information that comprises the access network equipment related context information that retains user equipment (UE) in the request of described release access bearer; Accordingly, also comprise: memory, for according to described indication information, retains the access network equipment related context information of described UE.
The implementation possible according to the first, in the possible implementation of the second, described memory is specifically for the address information and the endpoint of a tunnel information that retain the access network equipment of described UE.
The 9th aspect, a kind of data transmission system that the embodiment of the present invention provides comprises:
Access network equipment described in any possible execution mode in the 5th aspect and the core net control appliance as described in the 6th aspect; Or
Core net control appliance described in any possible execution mode in the 7th aspect and the core net service equipment described in any possible execution mode in the 9th aspect.
Data transmission method, equipment and system that the embodiment of the present invention provides transmit small data by carry small data in signaling, reduce and set up or discharge the Signalling exchange bringing for the connection of small data transmission, thus the network problem of having avoided " signaling storm " to cause.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the flow chart of data transmission method embodiment mono-provided by the invention;
Fig. 2 is the flow chart of data transmission method embodiment bis-provided by the invention;
Fig. 3 is the flow chart of data transmission method embodiment tri-provided by the invention;
Fig. 4 is the flow chart of data transmission method embodiment tetra-provided by the invention;
Fig. 5 is the signaling process figure of data transmission method embodiment five provided by the invention;
Fig. 6 is the signaling process figure of data transmission method embodiment six provided by the invention;
Fig. 7 is the signaling process figure of data transmission method embodiment seven provided by the invention;
Fig. 8 is the signaling process figure of data transmission method embodiment eight provided by the invention;
Fig. 9 is the signaling process figure of data transmission method embodiment nine provided by the invention;
The context comprising in the data transmission method that Figure 10 provides for the embodiment of the present invention connects the signaling process figure of processing procedure;
The ability indication process signaling process figure of the data transmission method that Figure 11 provides for the embodiment of the present invention;
Figure 12 is the structural representation of access network equipment embodiment provided by the invention;
Figure 13 is the structural representation of core net control appliance embodiment mono-provided by the invention;
Figure 14 is the structural representation of core net control appliance embodiment bis-provided by the invention;
Figure 15 is the structural representation of core net service equipment embodiment provided by the invention.
Embodiment
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The data transmission method, the equipment and system that provide for the embodiment of the present invention, below all execution mode is illustrated as the small data of heartbeat message or other non-heartbeat message as example take transmission data.Small data can be the Small Data of current agreement defined, for example being described as about Small Data size in current agreement: " The observed size of many of the instances of data exchanges is on the order of 1K (1024) octets or less ", data definition by data length below 1K byte is small data, certainly be not limited in actual applications this definition mode, can adjust according to actual needs, the embodiment of the present invention does not limit this.
Fig. 1 is the flow chart of data transmission method embodiment mono-provided by the invention, as shown in Figure 1, the data transmission method that the present embodiment provides the embodiment of the present invention take access network equipment as executive agent is illustrated, access network equipment can be enhanced base station eNB (enhanced Node B is called for short eNB).
The data transmission method that the present embodiment provides can comprise:
Step S110, access network equipment receive the first signaling that comprises small data that user equipment (UE) sends; Be example take access network equipment as eNB, eNB can receive the first signaling that comprises small data that UE sends, and wherein the first signaling can be activate business request message (Extended Service Request) or business request information etc.
Step S120, access network equipment obtain small data according to the first signaling; For example eNB obtains small data according to the first signaling receiving.
Small data is sent to core net service equipment by step S130, access network equipment, so that core net service equipment sends to packet data network by core net gateway device by small data.
The data transmission method that the present embodiment provides, transmits small data by carry small data in signaling, and reduce and set up or discharge the Signalling exchange bringing for the connection of small data transmission, thus the network problem of having avoided " signaling storm " to cause.
Alternatively, in the embodiment providing at Fig. 1, obtain small data according to the first signaling and comprise: access network equipment obtains small data from the first signaling.Access network equipment obtains small data and comprises from the first signaling: if the first signaling is not used Non-Access Stratum to encrypt, access network equipment obtains small data from the first signaling.Access network equipment obtains small data and comprises from the first signaling: access network equipment, according to the first indication comprising in the first signaling, obtains small data from the first signaling, and the first indication is used to indicate the first signaling and comprises small data.In other words,, if the first signaling that access network equipment receives is not used Non-Access Stratum to encrypt, can directly from the first signaling, obtain small data; Access network equipment can obtain the small data in the first signaling according to the first indication comprising in the first signaling, wherein, the first indication can be business type field or other indication field, indication field can be taken as " application " (application), " small data " (small data) or " keep-alive " (heartbeat message) etc., is used to indicate in the first signaling and comprises small data or heartbeat message etc.The first signaling can be activate business request message or business request information.
Alternatively, in the embodiment providing at Fig. 1, obtaining small data according to the first signaling comprises: the first signaling is sent to core net control appliance by access network equipment, so that core net control appliance obtains small data and small data is carried in the second signaling and is sent to access network equipment from the first signaling; Access network equipment receives the second signaling that comprises small data that core net control appliance sends, and from the second signaling, obtains small data.Access network equipment sends to core net control appliance to comprise the first signaling: if the first signaling is used Non-Access Stratum to encrypt, the first signaling is sent to core net control appliance by access network equipment.Access network equipment obtains small data from the second signaling, comprising: access network equipment, according to the second indication comprising in the second signaling, obtains small data from the second signaling; The second indication is used to indicate the second signaling and comprises small data.In other words, if the first signaling that access network equipment receives has been used Non-Access Stratum encryption, or access network equipment wishes by network equipment, the small data in the first signaling to be processed, the first signaling can be sent to core net control appliance so, core net control appliance obtains after the small data in the first signaling, small data is carried in the second signaling and sends to access network equipment again, and access network equipment obtains small data from the second signaling; Access network equipment can obtain the small data in the second signaling according to the second indication comprising in the second signaling, wherein, the second indication can be business type field or other indication field, indication field can be taken as " application " (application), " small data " (small data) or " keep-alive " (heartbeat message) etc., is used to indicate in the second signaling and comprises small data or heartbeat message etc.The second signaling can be that initial context is set up request.In this execution mode, the processing of small data in the first signaling is completed by core net control appliance, simplified the processing of access network equipment to small data.
Alternatively, in the embodiment providing at Fig. 1, small data is sent to core net service equipment by access network equipment, so that core net service equipment sends to packet data network to comprise small data by core net gateway device: small data is sent to gateway (Serving Gateway by access network equipment, be called for short S-GW), so that S-GW sends to packet data network by grouped data network gateway (Packet Data Network Gateway is called for short PDN GW) by small data.Briefly, core net control appliance in the embodiment of the present invention can be Mobility Management Entity MME (Mobility Management Entity, be called for short MME), core net service equipment can be S-GW, and core net gateway device can be PDN GW.
Alternatively, in the embodiment providing at Fig. 1, before access network equipment receives first signaling that comprises small data of UE transmission, also comprise: access network equipment receives the radio resource control RRC connection request message that UE sends, the connection comprising in RRC connection request message is set up former because small data transmission; Access network equipment obtains small data according to the first signaling, comprising: access network equipment sets up reason according to connection and the first signaling is obtained small data.Particularly, before the first signaling that access network equipment sends at reception UE, can first receive wireless resource control connection request (the RRC Connection Request) message that UE sends, the connection comprising in RRC connection request message is set up former because small data transmission; When eNB receives after the first signaling that comprises small data, can set up reason and the first signaling is obtained small data according to connection.
Alternatively, in the embodiment providing at Fig. 1, small data is sent to core net service equipment by access network equipment, comprising: access network equipment, according to address and the Tunnel End Point Identifier of the core net service equipment retaining, sends to core net service equipment by the small data obtaining from the first signaling; Or access network equipment, according to address and the Tunnel End Point Identifier of the core net service equipment comprising in the second signaling, sends to core net service equipment by the small data obtaining from the second signaling.For example: eNB is according to address and Tunnel End Point Identifier (the Tunnel Endpoint Identifier of the S-GW retaining, be called for short TEID), or address and the Tunnel End Point Identifier of the second S-GW comprising in signaling, the small data obtaining from the first signaling or the second signaling is sent to S-GW.Be that eNB can be according to the address of pre-configured S-GW and TEID, or according to the address of the S-GW comprising in the second signaling and TEID, small data sent to S-GW.
Alternatively, in the embodiment providing at Fig. 1, in the first signaling and/or the second signaling, also comprise priority indication information.Priority indication information is in order to indicate the priority of the first signaling and/or the second signaling, for example priority indication information value is to represent low priority at 1 o'clock, priority indication field value is to represent high priority at 0 o'clock, eNB can be according to this priority indication information, for example, according to network state (whether congested) preferential or postpone the service request of processing the first signaling and/or the second signaling.
Alternatively, in the embodiment providing at Fig. 1, small data comprises with at least one business or applies corresponding small data.Be that small data can be multiple small datas, eNB gets after multiple small datas, if multiple small data need to be sent to same S-GW, eNB can send multiple small data packings.
Alternatively, in the embodiment providing at Fig. 1, small data is sent to core net service equipment by access network equipment, so that core net service equipment sends to packet data network to comprise small data by core net gateway device: small data is sent to general packet radio service gprs service node SGSN by access network equipment, so that SGSN sends to packet data network by GPRS gateway node GGSN by small data.Above-mentioned all embodiment have described in the 4th generation 4G mobile communication system, i.e. the flow process of passing through signalling small data in Long Term Evolution LTE (Long Term Evolution) system (comprising core net and Access Network).
The data transmission method that above-described embodiment provides, transmits small data by carry small data in signaling, and reduce and set up or discharge the Signalling exchange bringing for the connection of small data transmission, thus the network problem of having avoided " signaling storm " to cause.
Further, in the embodiment providing at Fig. 1, access network equipment also comprises before receiving first signaling that comprises small data of UE transmission:
Access network equipment sends connection release message to UE, and starts timer; When eNB does not receive from the upstream data of UE and sends to the downlink data of UE in certain Preset Time, can send connection release message to discharge and being connected of inactive UE to UE, start a timer simultaneously.If do not receive the upstream data corresponding with UE or downlink data within the timing period of timer, send UE context releasing request to Mobility Management Entity MME; If do not receive the upstream data corresponding with UE or downlink data within the timing period of timer, timer timing finishes rear eNB and sends UE context releasing request to MME, to discharge UE context-related information.Also can be understood as, access network equipment does not send UE context releasing request to Mobility Management Entity MME within the timing period of timer, retains address and the Tunnel End Point Identifier of core net service equipment.
The context connection processing method that the present embodiment provides, by timer being set before discharging UE context, extend the effective time of the connection for small data transmission of setting up, thereby reduced the Signalling exchange that foundation or release connection bring, and then the network problem of having avoided " signaling storm " to cause.
Further, in the embodiment providing at Fig. 1, before access network equipment receives first signaling that comprises small data of UE transmission, also comprise: access network equipment sends UE context releasing request, the indication information that comprises the contextual information that retains UE in UE context releasing request to core net control appliance; Access network equipment, according to indication information, retains the contextual information of UE; Or access network equipment receives the UE context release command that core net control appliance sends, the indication information that comprises the contextual information that retains UE in the release command of UE context; Access network equipment, according to indication information, retains the contextual information of UE.Indication information comprises: be used to indicate release cause for the inactive information of user.Access network equipment retains the contextual information of UE, comprising: access network equipment retains address and the Tunnel End Point Identifier of core net service equipment.
The context connection processing method that the present embodiment provides, eNB is in the process of release connection, by retaining the contextual information of UE, transmission by the contextual information of UE for small data, thereby set up after having reduced or discharge the Signalling exchange bringing for transmitting the connection of small data, and then the network problem of having avoided " signaling storm " to cause.
Fig. 2 is the flow chart of data transmission method embodiment bis-provided by the invention, and as shown in Figure 2, the data transmission method that the present embodiment provides the embodiment of the present invention take core net control appliance as executive agent is illustrated, and core net control appliance can be MME.
The data transmission method that the present embodiment provides can comprise:
Step S210, core net control appliance receive the first signaling that comprises small data that access network equipment sends; Specifically, can be that MME receives the first signaling that comprises small data that eNB sends, the first signaling can be activate business request message (Extended Service Request) or business request information etc.
Step S220, core net control appliance send the second signaling to access network equipment, in the second signaling, comprise address and the Tunnel End Point Identifier of small data, core net service equipment, so that access network equipment obtains small data from the second signaling and according to the address of core net service equipment and Tunnel End Point Identifier, send small data to core net service equipment.MME gets after the small data carrying in the first signaling, small data can be carried to address and the TEID together with S-GW in the second signaling and send to eNB, and eNB sends to corresponding S-GW according to the address of S-GW and TEID by the small data obtaining from the second signaling.
The data transmission method that above-described embodiment provides, transmits small data by carry small data in signaling, and reduce and set up or discharge the Signalling exchange bringing for the connection of small data transmission, thus the network problem of having avoided " signaling storm " to cause.
Fig. 3 is the flow chart of data transmission method embodiment tri-provided by the invention, and as shown in Figure 3, the data transmission method that the present embodiment provides the embodiment of the present invention take core net control appliance as executive agent is illustrated, and core net control appliance can be MME.
The data transmission method that the present embodiment provides can comprise:
Step S310, core net control appliance receive the first signaling that comprises small data that UE sends; MME can receive the first signaling that comprises small data that UE directly sends, or receives the first signaling that comprises small data that UE forwards via eNB.
Step S320, core net control appliance obtain small data from the first signaling; MME obtains the small data comprising in the first signaling from the first signaling receiving.
Step S330, core net control appliance send the 3rd signaling that comprises small data to core net service equipment, so that core net service equipment sends to packet data network via core net gateway device by small data.MME is carried at the small data obtaining from the first signaling in the 3rd signaling and sends to core net service equipment, core net service equipment receives after the 3rd signaling that includes small data, the small data in the 3rd signaling can be transmitted to packet data network by core net gateway device.
The data transmission method that the present embodiment provides, transmits small data by carry small data in signaling, and reduce and set up or discharge the Signalling exchange bringing for the connection of small data transmission, thus the network problem of having avoided " signaling storm " to cause.
Alternatively, in the embodiment providing at Fig. 3, core net control appliance sends the 3rd signaling that comprises small data to core net service equipment, so that core net service equipment sends to packet data network to comprise small data by core net gateway device: core net control appliance sends the 3rd signaling that comprises small data to gateway S-GW, so that S-GW sends to packet data network by grouped data network gateway PDN GW by small data.In brief, core net service equipment can be S-GW, and core net gateway device can be PDN GW.
Alternatively, in the embodiment providing at Fig. 3, core net control appliance receives the first signaling that comprises small data that UE sends, comprise: core net control appliance receives the request message of activating business that UE sends, activate business and comprise the 3rd indication and small data in request message, the 3rd indication is used to indicate in the request message of activating business and comprises small data; Core net control appliance obtains small data from the first signaling, comprising: core net control appliance, according to the 3rd indication, obtains small data from the request message of activating business; Core net control appliance sends the 3rd signaling that comprises small data to core net service equipment, comprise: core net control appliance sends to core net service equipment the carrying request of revising, revise carrying request and comprise the 4th indication and small data, the 4th indication is used to indicate to revise in bearing request message and comprises small data.In other words, the first signaling can be the request message of activating business, activate business and can comprise and be used to indicate the 3rd indication that includes small data in the request message of activating business in request message, MME can obtain the small data of activating business in request message according to the 3rd indication; And the 3rd signaling can be to revise carrying request (Modify Bearer Request), to revise in carrying request and except comprising small data, can also comprise the 4th indication, the 4th indication is used to indicate equally to revise in carrying request and comprises small data.
Alternatively, in the embodiment providing at Fig. 3, core net control appliance sends the 3rd signaling that comprises small data to core net service equipment, so that core net service equipment sends to packet data network to comprise small data by core net gateway device:
Core net control appliance sends the 3rd signaling that comprises small data to general packet radio service gprs service node SGSN, so that SGSN sends to packet data network via GPRS gateway node GGSN by small data.
The data transmission method that above-described embodiment provides, transmits small data by carry small data in signaling, and reduce and set up or discharge the Signalling exchange bringing for the connection of small data transmission, thus the network problem of having avoided " signaling storm " to cause.
Fig. 4 is the flow chart of data transmission method embodiment tetra-provided by the invention, and as shown in Figure 4, the data transmission method that the present embodiment provides the embodiment of the present invention take core net service equipment as executive agent is illustrated, and core net service equipment can be S-GW.
The data transmission method that the present embodiment provides can comprise:
Step S410, core net service equipment receive the modification that the comprises small data carrying request that core net control appliance sends;
S-GW receives the modification carrying request that core net control appliance sends, and revises in carrying request and comprises small data.Core net control appliance can be MME, revises in carrying request and except comprising small data, can also comprise the 4th indication, and the 4th indication is used to indicate to revise in bearing request message and comprises small data.
Small data is sent to core net gateway device by step S420, core net service equipment.
S-GW can, according to the 4th indication of revising in carrying request, send to core net gateway device by modification carrying request, and core net gateway device obtains small data according to the 4th indication again from revise carrying request; S-GW also can, according to the 4th indication of revising in carrying request, obtain small data, then the small data obtaining is sent to core net gateway device from revise carrying request; Core net gateway device can be grouped data network gateway PDN GW.
The data transmission method that the present embodiment provides, transmits small data by carry small data in signaling, and reduce and set up or discharge the Signalling exchange bringing for the connection of small data transmission, thus the network problem of having avoided " signaling storm " to cause.
Further, in the embodiment providing at Fig. 4, core net service equipment receives the release access bearer request that core net control appliance sends, the indication information that comprises the access network equipment related context information that retains UE in this release access bearer request;
Core net service equipment, according to indication information, retains the access network equipment related context information of UE.
For example S-GW receives after the release access bearer request of core net control appliance transmission, according to the indication information of the access network equipment related context information of reservation UE wherein, retain the access network equipment related context information of UE, can return and discharge access bearer response to core net control appliance afterwards.Wherein indication information can also be used to indicate release cause for user's inertia.Retain the access network equipment related context information of UE, comprise address information and the Tunnel End Point Identifier TEID of the access network equipment that retains UE.Wherein core net control appliance can be MME, and access network equipment can be eNB.
The context connection processing method that the present embodiment provides, S-GW is in the process of release connection, by retaining the access network equipment related context information of UE, transmission by the access network equipment related context information of UE for small data, thereby set up after having reduced or discharge the Signalling exchange bringing for transmitting the connection of small data, and then the network problem of having avoided " signaling storm " to cause.
Carry out mutual execution mode below by the each network element providing in Fig. 5 to Fig. 9, the data transmission method that the embodiment of the present invention is provided illustrates:
Fig. 5 is the signaling process figure of data transmission method embodiment five provided by the invention, and as shown in Figure 5, the method that the present embodiment provides can comprise:
Step S510, UE send the first signaling to eNB, and the first signaling can be Non-Access Stratum NAS(Non-Access Stratum, are called for short NAS) message, be for example the request message of activating business (Extended Service Request).
Activate business in request message and can comprise: safe header type (Security header type) field, type of service (Service Type) field and application data container (Application Data Container) field, alternatively, can also comprise priority indication (priority) field.
Wherein, security header portion type field value can be " 0000 ", and request message unencryption shows to activate business; Business type field can be taken as " application " (application), " small data " (small data) or " keep-alive " (heartbeat message) etc., in order to the service request type of indication extension business request information; The content of application data container field comprises the small data of needs transmission, the small data of for example heartbeat message or other non-heartbeat message.Priority indication field is in order to indicate the priority of this request message of activating business, for example priority indication field value is to represent low priority at 1 o'clock, priority indication field value is to represent high priority at 0 o'clock, eNB can be according to this low priority indication, for example, according to network state (whether congested) preferential or this service request of postponement processing.
Step S520, eNB obtain the small data comprising in the request message of activating business.
In the present embodiment, eNB is according to the indicated service request type of business type field of activating business in request message, obtain the small data of the needs transmission comprising in the application data container field of activating business in request message, the small data of for example heartbeat message or other non-heartbeat message.
Step S530, eNB send heartbeat message or other small data to S-GW.In the present embodiment, the S-GW address and the TEID that in the UE context that eNB stores according to self, comprise, send to this S-GW by the small data of heartbeat message or other non-heartbeat message.If comprise multiple S-GW address and TEID in UE context, eNB can select S-GW address and the TEID that default bearing (default bearer) is corresponding, and small data is sent to the S-GW that default bearing is corresponding.If there are multiple small datas, eNB can be packaged together multiple small datas to send to S-GW.The small data receiving is transmitted to PDN GW by S-GW.If there are multiple small datas that need to send to same PDN GW, S-GW also can be packaged together multiple small datas to send to PDN GW.
Step S540, PDN GW are according to the destination address comprising in the small data of heartbeat message or other non-heartbeat message (Destination Address, be called for short DS), for example application server AS (Application Server, be called for short AS) address, small data is sent to AS.In the time having multiple small data, PDN GW, according to the destination address of small data, sends to respectively corresponding AS by small data.
Alternatively, can also comprise the following steps:
Step S550, AS return to the small data response message of heartbeat response message or other non-heartbeat message to PDN GW; If multiple small datas are sent to different AS by PDN GW in step S104, correspondingly, multiple AS return to multiple small data response messages to PDN GW.
The small data response message of heartbeat response message or other non-heartbeat message is sent to S-GW by step S560, PDN GW.If there are multiple small data response messages, PDN GW can be encapsulated in together and send.S-GW, according to the eNB address and the TEID that comprise in the UE context of preserving, returns to the small data response message of heartbeat response message or other non-heartbeat message to this eNB.If there is the small data response message of multiple heartbeat response messages or other non-heartbeat message, S-GW can be encapsulated in together and send.
Step S570, eNB send to UE the request response (Extended Service Response) of activating business, and this request response of activating business is carried one or more heartbeat response messages that eNB receives in step S560 or the small data response message of other non-heartbeat message.
The data transmission method that the present embodiment provides, transmits small data by carry small data in signaling, and reduce and set up or discharge the Signalling exchange bringing for the connection of small data transmission, thus the network problem of having avoided " signaling storm " to cause.
Fig. 6 is the signaling process figure of data transmission method embodiment six provided by the invention, as shown in Figure 6, the present embodiment comprises with the main distinction embodiment illustrated in fig. 5: UE and eNB model in the present embodiment " Radio Resource be connected set up reason " are Radio Resource control connection (the Radio Resource Control Connection of " by signalling data ", be called for short RRC Connection), indicate this Radio Resource control connection for carrying out transfer of data by signaling, therefore the NAS message that UE sends to eNB, for example, in business request information (Service Request) or the request message of activating business, can carry business type field.The small data of the method for the present embodiment take transmission data as heartbeat message or other non-heartbeat message, as example, can comprise:
Step S601, UE send wireless resource control connection request RRC Connection Request to eNB, wherein carrying " reason (establishment Cause) is set up in Radio Resource connection " is " by signalling data (moDataOverSignaling) ", to indicate this Radio Resource control connection for carrying out transfer of data by signaling.
Step S602, eNB receive after wireless resource control connection request, for example, if judge that the network equipment (eNB itself and/or other equipment of the core network) possesses by the ability of signalling data, send Radio Resource control connection to UE and set up message (RRC Connection Setup); Do not possess by the ability of signalling data if eNB judges the network equipment, can refuse this wireless resource control connection request.
Step S610, UE send NAS message to eNB, for example, be business request information (Service Request) or the request message of activating business.Activate business in request message and can comprise: security header portion type field and application data container field, alternatively, can also comprise priority indication field.
Wherein, security header portion type field value can be " 0000 ", and request message unencryption shows to activate business; The content of application data container field comprises the data of needs transmission, the small data of for example heartbeat message or other non-heartbeat message.Priority indication field is in order to indicate the priority of this request message of activating business, for example priority indication field value is to represent low priority at 1 o'clock, priority indication field value is to represent high priority at 0 o'clock, eNB can be according to this low priority indication, for example, according to network state (whether congested) preferential or this service request of postponement processing.
Step S620, obtain the heartbeat message or other small data that in the request message of activating business, comprise.In the present embodiment, eNB is according to " reason is set up in Radio Resource connection " in Radio Resource connection request, obtain the small data of the needs transmission comprising in the application data container field of activating business in request message, the small data of for example heartbeat message or other non-heartbeat message.
All the other step S630-S670 are identical with middle corresponding step S530 ~ S570 embodiment illustrated in fig. 5, repeat no more herein.
The data transmission method that the present embodiment provides, transmits small data by carry small data in signaling, and reduce and set up or discharge the Signalling exchange bringing for the connection of small data transmission, thus the network problem of having avoided " signaling storm " to cause.
Fig. 7 is the signaling process figure of data transmission method embodiment seven provided by the invention, as shown in Figure 7, the present embodiment and the main distinction embodiment illustrated in fig. 5 comprise: the processing procedures such as obtaining of data in request message of in the present embodiment, NAS message for example being activated business are completed by MME, thereby are also applicable to the scene that data are transmitted by the signaling of encrypting.The small data of the method for the present embodiment take transmission data as heartbeat message or other non-heartbeat message, as example, can comprise:
Step S710, UE send NAS message to eNB, for example, be the request message of activating business.Activate business in request message and can comprise: security header portion type field, business type field and application data container field, alternatively, can also comprise priority indication field.
Wherein, business type field can be taken as " application " (application), " small data " (small data) or " keep-alive " (heartbeat message) etc., in order to the service request type of indication extension business request information; The content of application data container field comprises the data of needs transmission, the small data of for example heartbeat message or other non-heartbeat message.Priority indication field is in order to indicate the priority of this request message of activating business, for example priority indication field value is to represent low priority at 1 o'clock, priority indication field value is to represent high priority at 0 o'clock, eNB can be according to this low priority indication, for example, according to network state (whether congested) preferential or this service request of postponement processing.The value that does not limit security header portion type field in the request message of activating business of the present embodiment, NAS message can be encrypted also and can not encrypted; When security header portion type field value is non-" 0000 ", for example " 0001 ", " 0010 ", " 0011 " or " 0100 ", the request message that shows to activate business is encrypted.
The request message of activating business receiving is directly transmitted to mobile management entity (MME) by step S712, eNB.
Step S714, MME receive and activate business after request message, can carry out Non-Access Stratum network authentication and safety (Authentication/Security) process for UE.
Step S720, MME obtain the heartbeat message or other small data that in the request message of activating business, comprise.In the present embodiment, MME is according to the indicated service request type of business type field of activating business in request message, obtain the data of the needs transmission comprising in the application data container field of activating business in request message, the small data of for example heartbeat message or other non-heartbeat message.
Step S722, MME send initial context to eNB and set up request (Initial Context Setup Request), and the initial context request of setting up comprises the second application data container field, indication field and S-GW mark.
Wherein, the content of the second application data container field comprises the data of obtaining the request message of activating business from receiving, the small data of for example heartbeat message or other non-heartbeat message.The small data that comprises multiple heartbeat message or multiple non-heartbeat message in request message if activate business, the small data that comprises these multiple heartbeat message or multiple non-heartbeat message in application data container field.Application data container field comprises all heartbeat message of comprising in the request message of activating business receiving or the small data of other non-heartbeat message.Indication field can be taken as " application " (application), " small data " (small data) or " keep-alive " (heartbeat message) etc., in order to indicate initial context to set up the service request type of request.S-GW mark comprises S-GW address and TEID.
Step S730, eNB send heartbeat message or other small data to gateway.In the present embodiment, eNB receives initial context and sets up after request, according to indication field wherein, obtain heartbeat message in application data container field or the small data of other non-heartbeat message, and foundation S-GW address and TEID wherein, to the small data of this S-GW transmission heartbeat message or other non-heartbeat message.If there is the small data of multiple heartbeat message or other non-heartbeat message, eNB can be encapsulated in together and send.The small data of heartbeat message or other non-heartbeat message is sent to PDN GW by S-GW.If there is the small data of multiple heartbeat message or other non-heartbeat message, S-GW can be encapsulated in together and send.
Step S732, eNB send initial context to MME and set up response (Initial Context Setup Response).
All the other step S740-S770 are identical with middle corresponding step S540 ~ S570 embodiment illustrated in fig. 5, repeat no more herein.
The data transmission method that the present embodiment provides, transmits small data by carry small data in signaling, and reduce and set up or discharge the Signalling exchange bringing for the connection of small data transmission, thus the network problem of having avoided " signaling storm " to cause; Meanwhile, the present embodiment is also applicable to the scene that data are transmitted by the signaling of encrypting.
Fig. 8 is the signaling process figure of data transmission method embodiment eight provided by the invention, as shown in Figure 8, the present embodiment and the main distinction embodiment illustrated in fig. 7 comprise: in the present embodiment, the NAS message processing procedures such as transmission of obtaining and carry of data in request message of for example activating business are mainly completed by core-network side, can simplify the mutual of data in Access Network, enrich the implementation of the embodiment of the present invention.The method of the present embodiment can comprise:
Step S810, step S812, step S814 and step S820 are identical respectively with middle corresponding step S710 embodiment illustrated in fig. 7, step S712, step S714 and step S720, repeat no more herein.
Step S824, MME send to S-GW the carrying request (Modify Bearer Request) of revising, and revise carrying request and comprise the 3rd application data container field and indication field.
Wherein, the content of the 3rd application data container field comprises the data of the data obtained the request message of activating business from receiving or the transmission of multiple needs, the small data of for example heartbeat message or other non-heartbeat message.The small data that comprises multiple heartbeat message or multiple non-heartbeat message in request message if activate business, the small data that comprises these multiple heartbeat message or multiple non-heartbeat message in application data container field.Application data container field comprises all heartbeat message of comprising in the request message of activating business receiving or the small data of other non-heartbeat message.Indication field can be taken as " application " (application), " small data " (small data) or " keep-alive " (heartbeat message) etc., revises the service request type of carrying request in order to indication.
Step S826, S-GW, according to the indication field of revising in carrying request, are transmitted to PDN GW by modification carrying request.PDN GW is according to the indication field in the carrying request of modification, obtains and revises heartbeat message that in carrying request, the 3rd application data container comprises or the small data of other non-heartbeat message, and send to AS.
Step S840 is identical with step S750 with middle corresponding step S740 embodiment illustrated in fig. 7 with step S850, repeats no more herein.In the time that embodiment performs step S850, accordingly, also comprise the following steps:
Step S862, PDN GW send and revise carrying response (Modify Bearer Response) to S-GW, wherein comprise the heartbeat response message that receives from AS or the small data response message of other non-heartbeat message.Heartbeat response message in modification carrying response or the small data response message of other non-heartbeat message also can carry by application data container field.The small data response message of multiple heartbeat response messages or other non-heartbeat message, can be included in together in this modification carrying response and send.
The modification carrying response receiving is transmitted to MME by step S864, S-GW.
Step S866, MME are by the heartbeat response message obtaining from revise carrying response or the small data response message of other non-heartbeat message, and be carried at and activate business in request response, the request response of activating business of the small data response message that carries heartbeat response message or other non-heartbeat message is sent to eNB.
Step S870 is identical with middle corresponding step S770 embodiment illustrated in fig. 7, repeats no more herein.
The data transmission method that the present embodiment provides, directly by the data of signalling heartbeat message or other non-heartbeat message, frequent foundation and release for the radio bearer of transfer of data are avoided, save interface-free resources, reduce the Signalling exchange between terminal and access network equipment, thereby avoided the problem of blocking up of the Access Network that " signaling storm " cause.
Fig. 9 is the signaling process figure of data transmission method embodiment nine provided by the invention, as shown in Figure 9, the present embodiment and the main distinction embodiment illustrated in fig. 8 comprise: in the present embodiment, S-GW obtains heartbeat response message or other data from signaling, and between PDN GW, send heartbeat response message or other data by user plane bearer, send and heartbeat response message or other data are not carried to revise in carrying request.The small data of the method for the present embodiment take transmission data as heartbeat message or other non-heartbeat message, as example, can comprise:
Step S910-S924 is identical respectively with middle corresponding step S810-S824 embodiment illustrated in fig. 8, repeats no more herein.
Step S928, S-GW are according to the indication field of revising in carrying request, obtain heartbeat message that in the carrying request of modification, the 3rd application data container comprises or the small data of other non-heartbeat message, and by user plane bearer, the small data of heartbeat message or other non-heartbeat message is sent to PDN GW.
Step S940 is identical with step S850 with middle corresponding step S840 embodiment illustrated in fig. 8 with step S950, repeats no more herein.In the time that embodiment performs step S950, accordingly, also comprise the following steps:
Step S963, PDN GW send to S-GW by user plane bearer by the small data response message of heartbeat response message or other non-heartbeat message.If there is the small data of multiple heartbeat message or other non-heartbeat message, PDN GW can be encapsulated in together and send.
Step S965, S-GW are carried at the small data response message of the heartbeat response message receiving or other non-heartbeat message to revise in carrying response and send to MME.Heartbeat response message in modification carrying response or the small data response message of other non-heartbeat message can be realized by application data container field.The small data response message of multiple heartbeat response messages or other non-heartbeat message, can be included in together in this modification carrying response and send.
Step S966 is identical respectively with middle corresponding step S866 embodiment illustrated in fig. 8 and step S870 with step S970, repeats no more herein.
The data transmission method that the present embodiment provides, directly by the data of signalling heartbeat message or other non-heartbeat message, frequent foundation and release for the radio bearer of transfer of data are avoided, save interface-free resources, reduce the Signalling exchange between terminal and the network equipment, can alleviate to a certain extent the congested of network.
Carry out mutual execution mode below by the each network element providing in Figure 10 and Figure 11, the context comprising in the data transmission method that the embodiment of the present invention is provided connects processing procedure and ability indication process illustrates.
The context comprising in the data transmission method that Figure 10 provides for the embodiment of the present invention connects the signaling process figure of processing procedure, context connects processing procedure and can be applied in the data transmission method that the embodiment of the present invention provides, for example be applied to Fig. 5 to before embodiment illustrated in fig. 9, with the network problem of avoiding " signaling storm " to cause, also can implement separately the network problem that can avoid equally " signaling storm " to cause.As shown in figure 10, the context comprising in the data transmission method that the present embodiment provides connects processing procedure and can comprise:
Step S1010, eNB judge that user's inertia timer (Inactivity Timer) is overtime.Work as the downlink data that eNB does not receive the upstream data of UE transmission or sends to UE within the inertia time setting in advance, eNB can judge user's inertia timer expired.
Step S1012, eNB judge after user's inertia timer expired, can send Radio Resource Connection Release (RRC Connection Release) message to UE, the wireless signaling discharging between this UE and eNB is connected and all radio bearers (radio bearer).
Step S1014, eNB can start a new timer, in the time not receiving yet the upstream data that UE sends in the time that eNB sets at this new timer or send to the downlink data of UE, after new timer expired, then perform step S1016.
It should be noted that, the optional step that step S1014 is the embodiment of the present invention, the new timer of startup that this step provides simultaneously also can be applicable to existing carrying release flow process to extend the method for default user's inertia time.
Step S1016, eNB send UE context releasing request to MME, and wherein carrying " reason " is " user's inertia ".
Step S1018, MME send to S-GW the access bearer request that discharges.Discharging in access bearer request, carry the instruction content of " the eNB related context (keep UE eNB context) that retains UE ", or " reason " is " user's inertia " (Cause=User Inactivity).
Step S1020, S-GW, according to instruction content or the reason of carrying in the release access bearer request receiving, retain the eNB relevant information of this UE, for example, comprise eNB address and the TEID of eNB etc. of UE default bearing.
Step S1022, S-GW send and discharge access bearer response to MME.
Step S1024, MME send the release command of UE context to eNB.The release command of UE context can be carried the indication of " retaining UE context (keep UE context) ".Be " user's inertia " owing to carrying " reason " in Radio Resource connection release message, or according to the indication comprising in the release command of UE context, eNB is receiving after the Radio Resource connection release response message of UE, although eNB has discharged the radio bearer between UE, can retain the UE context (S1026) including the S-GW address of UE default bearing and the TEID of S-GW of its storage.
Do not discharge if the Radio Resource between step S1028 eNB and UE is also connected, now eNB also can send Radio Resource connection release message to UE, and the wireless signaling discharging between this UE and eNB is connected and all radio bearers.
The common optional step S1012 of the embodiment of the present invention or step S1028 one of them.
Step S1030, eNB send UE context Release complete to MME.
The context connection processing method that the present embodiment provides, directly, by the data of signalling heartbeat message or other non-heartbeat message, has avoided frequent foundation and release for the radio bearer of transfer of data.And in radio bearer dispose procedure, retain UE context, the UE context of reservation is used to indicate to data transfer path, foundation and the release of radio bearer are further reduced, reduce radio bearer and saved interface-free resources, reduce the Signalling exchange between terminal and the network equipment, can alleviate to a greater extent the congested of network.
The ability indication process signaling process figure of the data transmission method that Figure 11 provides for the embodiment of the present invention, as shown in figure 11, in the time that UE or the network equipment do not possess the ability of supporting by signalling data, although can complete by signaling the transmission of data, occur that through the data of its transmission wrong probability can increase.By this, the data transmission method that the embodiment of the present invention provides, on the basis of above-mentioned all embodiment, is listed in the ability indication step of carrying out before transfer of data under can also comprising:
Step S1110, eNB send carrying to MME and set up request, eNB can carry self to have and support by the indication of signalling data capability in request is set up in the carrying that sends to MME, and the carrying request of setting up can be that S1 sets up request (S1 Setup Request).
Step S1120, MME reply carrying to eNB and set up response, and for example S1 sets up response (S1 Setup Response).
Step S1130, UE send and adhere to request (Attach Request) to eNB, adhere to request and carry indication and show that this UE supports by the signalling data ability of (comprising heartbeat message or other small datas), can be by expanding " terminal core net ability (UE Core Network Capability) " field realization.
Step S1140, eNB will adhere to request and be transmitted to MME.
Step S1150, carry out the attaching process stipulating in existing standard, for example, carry out the attaching process stipulating in 3GPP TS23.401, until MME receives that S-GW's sets up conversational response (Create Session Response).
Step S1160, MME send and adhere to receipt message (Attach Accept) to eNB, adhering to receipt message carries indication and shows that network side (for example, comprising MME, S-GW, PDN GW and/or eNB) supports to comprise the ability of heartbeat message or other data by signalling.
Step S1170, eNB will adhere to receipt message and be transmitted to UE.
Step S1180, complete the attaching process stipulating in existing standard.
It should be noted that, shown in Fig. 6, in implementation method, comprise in step S602 whether the network equipment is possessed by the judgement of signalling data capability, so the ability indication step that can no longer adopt the present embodiment to provide.
The data transmission method that the present embodiment provides, directly by the data of signalling heartbeat message or other non-heartbeat message, frequent foundation and release for the radio bearer of transfer of data are avoided, reduce foundation and the release of radio bearer, reduce radio bearer and saved interface-free resources, reduce the Signalling exchange between terminal and the network equipment, can alleviate to a greater extent the congested of network.And carrying out implementing ability indication step before transfer of data, on the basis of alleviating network congestion, guarantee the accuracy of transfer of data.
Figure 12 is the structural representation of access network equipment embodiment provided by the invention, and as shown in figure 12, the access network equipment 1200 that the present embodiment provides can comprise: receiver 1210, processor 1220, transmitter 1230 and memory 1240, particularly:
Receiver 1210, the first signaling that comprises small data sending for receiving user equipment (UE);
Processor 1220, for obtaining small data according to the first signaling;
Transmitter 1230, for sending to small data core net service equipment, so that core net service equipment sends to packet data network by core net gateway device by small data.
Alternatively, processor 1220 specifically for obtaining small data from the first signaling.
Alternatively, processor 1220 specifically also for: if the first signaling do not use Non-Access Stratum encrypt, from the first signaling, obtain small data.
Alternatively, processor 1220 is the first indication for comprising according to the first signaling also, from the first signaling, obtains small data, and the first indication is used to indicate the first signaling and comprises small data.
Alternatively, transmitter 1230 is also for the first signaling is sent to core net control appliance, so that core net control appliance obtains small data and small data is carried in the second signaling and is sent to access network equipment from the first signaling; The second signaling that comprises small data that receiver 1210 also sends for receiving core net control appliance; Processor is also for obtaining small data from the second signaling.
Alternatively, if transmitter 1230 specifically also uses Non-Access Stratum to encrypt for the first signaling, the first signaling is sent to core net control appliance.
Alternatively, processor 1220 is the second indication for comprising according to the second signaling also, from the second signaling, obtains small data; The second indication is used to indicate the second signaling and comprises small data.
Alternatively, the radio resource control RRC connection request message that receiver 1210 also sends for receiving UE, the connection comprising in RRC connection request message is set up former because small data transmission; Processor 1220 also, for set up reason and the first signaling according to connection, obtains small data.
Alternatively, transmitter 1230 also, for according to address and the Tunnel End Point Identifier of the core net service equipment retaining, sends to core net service equipment by the small data obtaining from the first signaling; Or transmitter 1230 also, for address and the Tunnel End Point Identifier of the core net service equipment that comprises according to the second signaling, sends to core net service equipment by the small data obtaining from the second signaling.
Alternatively, transmitter 1230 is also for small data being sent to general packet radio service gprs service node SGSN, so that SGSN sends to packet data network by GPRS gateway node GGSN by small data.
Alternatively, transmitter 1230 is also for sending connection release message to UE, and start timer, within the timing period of timer, do not send UE context releasing request to Mobility Management Entity MME, described access network equipment 1200 also comprises: memory 1240, and for retaining address and the Tunnel End Point Identifier of core net service equipment.
Alternatively, transmitter 1230 is also for sending UE context releasing request, the indication information that comprises the contextual information that retains UE in UE context releasing request to core net control appliance;
The UE context release command that receiver 1210 also sends for receiving core net control appliance, the indication information that comprises the contextual information that retains UE in the release command of UE context;
Accordingly, described access network equipment 1200 also comprises: memory 1240, for according to indication information, retains the contextual information of UE.
Alternatively, indication information comprises: be used to indicate release cause for the inactive information of user.
Alternatively, memory 1240 is specifically for retaining address and the Tunnel End Point Identifier of core net service equipment.
The access network equipment 1200 that the present embodiment provides, can be used for arbitrary in execution graph 1 or Fig. 5 ~ Fig. 7 shown in the technical scheme of embodiment of the method, it realizes principle and technique effect is similar, repeats no more herein.
Figure 13 is the structural representation of core net control appliance embodiment mono-provided by the invention, and as shown in figure 13, the core net control appliance 1300 that the present embodiment provides can comprise:
Receiver 1310, the first signaling that comprises small data sending for receiving access network equipment;
Transmitter 1320, for sending the second signaling to access network equipment, in the second signaling, comprise address and the Tunnel End Point Identifier of small data, core net service equipment, so that access network equipment obtains small data from the second signaling and according to the address of core net service equipment and Tunnel End Point Identifier, send small data to core net service equipment.
The core net control appliance 1300 that the present embodiment provides, can be used for the technical scheme of embodiment of the method shown in execution graph 2 or Fig. 7, and it realizes principle and technique effect is similar, repeats no more herein.
Figure 14 is the structural representation of core net control appliance embodiment bis-provided by the invention, and as shown in figure 14, the core net control appliance 1400 that the present embodiment provides can comprise:
Receiver 1410, the first signaling that comprises small data sending for receiving UE;
Processor 1420, for obtaining small data from the first signaling;
Transmitter 1430, for send the 3rd signaling that comprises small data to core net service equipment, so that core net service equipment sends to packet data network by core net gateway device by small data.
Alternatively, transmitter 1430 is specifically for send the 3rd signaling that comprises small data to gateway S-GW, so that S-GW sends to packet data network by grouped data network gateway PDN GW by small data.
Alternatively, the request message of activating business that receiver 1410 sends specifically for receiving UE, comprises the 3rd indication and small data in the request message of activating business, and the 3rd indication is used to indicate in the request message of activating business and comprises small data; Processor 1420, specifically for according to the 3rd indication, obtains small data from the request message of activating business; Transmitter 1430, specifically for sending and revise carrying request to core net service equipment, is revised carrying request and is comprised the 4th indication and small data, and the 4th indication is used to indicate to revise in bearing request message and comprises small data.
Alternatively, transmitter 1430 is also for send the 3rd signaling that comprises small data to general packet radio service gprs service node SGSN, so that SGSN sends to packet data network by GPRS gateway node GGSN by small data.
The core net control appliance 1400 that the present embodiment provides, can be used for arbitrary in execution graph 3, Fig. 8 or Fig. 9 shown in the technical scheme of embodiment of the method, it realizes principle and technique effect is similar, repeats no more herein.
Figure 15 is the structural representation of core net service equipment embodiment provided by the invention, and as shown in figure 15, the core net service equipment 1500 that the present embodiment provides can comprise: receiver 1510, transmitter 1520 and memory 1530, particularly:
Receiver 1510, the modification that the comprises small data carrying request sending for receiving core net control appliance;
Transmitter 1520, for sending to small data core net gateway device.
Alternatively, the release access bearer request that receiver 1510 also sends for receiving core net control appliance, discharges the indication information that comprises the access network equipment related context information that retains UE in access bearer request; Accordingly, memory 1530, for according to indication information, retains the access network equipment related context information of UE.
Alternatively, memory 1530 is specifically for address information and the endpoint of a tunnel information of the access network equipment of reservation UE.
The core net service equipment 1500 that the present embodiment provides, can be used for arbitrary in execution graph 4, Fig. 8 or Fig. 9 shown in the technical scheme of embodiment of the method, it realizes principle and technique effect is similar, repeats no more herein.
Above-mentioned all embodiment can also be generalized to third generation 3G or second generation 2G mobile communication system packet switching PS network, i.e. Universal Mobile Telecommunications System UMTS(Universal Mobile Telecommunications System) or the PS network of enhanced data rates for gsm evolution technology EDGE (Enhanced Data Rate for GSM Evolution).That is: the eNB in above-described embodiment can replace with base station NB (NodeB)/radio network controller (RNC) (Radio Network Controller); correspondingly; MME and S-GW can replace with GPRS serving GPRS support node SGSN (Serving GPRS Support Node), and PDN GW can replace with GGSN GGSN (Gateway GPRS Support Node); S1 interface and/or the connection of S1 signaling can replace with Iu interface with carrying and/or Iu signaling is connected and carrying, or A/Gb interface and/or the connection of A/Gb signaling and carrying; Signaling in embodiment also can replace with the corresponding signaling in 3G or 2G PS system.Here repeat no more.
In sum, data transmission method, equipment and system that the embodiment of the present invention provides, by the data of signalling heartbeat message or other non-heartbeat message, frequent foundation and release for the radio bearer of transfer of data are avoided, reduce foundation and the release of radio bearer, reduce radio bearer and saved interface-free resources, reduced the Signalling exchange between terminal and the network equipment, can alleviate to a greater extent the congested of network.And carrying out implementing ability indication step before transfer of data, on the basis of alleviating network congestion, guarantee the accuracy of transfer of data.
One of ordinary skill in the art will appreciate that: all or part of step that realizes above-mentioned each embodiment of the method can complete by the relevant hardware of program command.Aforesaid program can be stored in a computer read/write memory medium.This program, in the time carrying out, is carried out the step that comprises above-mentioned each embodiment of the method; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.
Finally it should be noted that: above each embodiment, only in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.

Claims (44)

1. a data transmission method, is characterized in that, comprising:
Access network equipment receives the first signaling that comprises small data that user equipment (UE) sends;
Described access network equipment obtains described small data according to described the first signaling;
Described small data is sent to core net service equipment by described access network equipment, so that described core net service equipment sends to packet data network by core net gateway device by described small data.
2. method according to claim 1, is characterized in that, describedly obtains described small data according to described the first signaling and comprises:
Described access network equipment obtains described small data from described the first signaling.
3. method according to claim 2, is characterized in that, described access network equipment obtains described small data and comprises from described the first signaling:
If described the first signaling is not used Non-Access Stratum to encrypt, described access network equipment obtains described small data from described the first signaling.
4. according to the method in claim 2 or 3, it is characterized in that, described access network equipment obtains described small data and comprises from described the first signaling:
Described access network equipment, according to the first indication comprising in described the first signaling, obtains described small data from described the first signaling, and described the first indication is used to indicate described the first signaling and comprises described small data.
5. method according to claim 1, is characterized in that, describedly obtains described small data according to described the first signaling and comprises:
Described the first signaling is sent to core net control appliance by described access network equipment, so that described core net control appliance obtains described small data and described small data is carried in the second signaling and is sent to described access network equipment from described the first signaling;
Described access network equipment receives the second signaling that comprises described small data that described core net control appliance sends, and from described the second signaling, obtains described small data.
6. method according to claim 5, is characterized in that, described access network equipment sends to described core net control appliance to comprise described the first signaling:
If described the first signaling is used Non-Access Stratum to encrypt, described the first signaling is sent to core net control appliance by described access network equipment.
7. according to the method described in claim 5 or 6, it is characterized in that, described access network equipment obtains described small data from described the second signaling, comprising:
Described access network equipment, according to the second indication comprising in described the second signaling, obtains described small data from described the second signaling; Described the second indication is used to indicate described the second signaling and comprises described small data.
8. according to the method described in any one in claim 1 to 7, it is characterized in that,
Described access network equipment also comprises before receiving described first signaling that comprises described small data of described UE transmission:
Described access network equipment receives the radio resource control RRC connection request message that described UE sends, and the connection comprising in described RRC connection request message is set up former because small data transmission;
Described access network equipment obtains described small data according to described the first signaling, comprising:
Described access network equipment is set up reason and described the first signaling according to described connection, obtains described small data.
9. according to the method described in any one in claim 1 to 8, it is characterized in that, described small data is sent to described core net service equipment by described access network equipment, comprising:
Described access network equipment, according to address and the Tunnel End Point Identifier of the described core net service equipment retaining, sends to described core net service equipment by the described small data obtaining from described the first signaling;
Or,
Described access network equipment, according to address and the Tunnel End Point Identifier of the described core net service equipment comprising in described the second signaling, sends to described core net service equipment by the described small data obtaining from described the second signaling.
10. according to the method described in any one in claim 1 to 9, it is characterized in that, in described the first signaling and/or described the second signaling, also comprise priority indication information.
11. according to the method described in any one in claim 1 to 10, it is characterized in that,
Described the first signaling is request message or the business request information of activating business;
Described the second signaling is that initial context is set up request.
12. according to the method described in any one in claim 1 to 11, it is characterized in that, described small data is sent to core net service equipment by described access network equipment, so that described core net service equipment sends to packet data network to comprise described small data by core net gateway device:
Described small data is sent to general packet radio service gprs service node SGSN by described access network equipment, so that described SGSN sends to packet data network by GPRS gateway node GGSN by described small data.
13. according to the method described in any one in claim 1 to 12, it is characterized in that, described access network equipment also comprises before receiving described first signaling that comprises small data of described UE transmission:
Described access network equipment sends connection release message to described UE, and starts timer;
Described access network equipment does not send UE context releasing request to Mobility Management Entity MME within the timing period of described timer, retains address and the Tunnel End Point Identifier of described core net service equipment.
14. according to the method described in any one in claim 1 to 12, it is characterized in that, described access network equipment also comprises before receiving described first signaling that comprises small data of described UE transmission:
Described access network equipment sends UE context releasing request, the indication information that comprises the contextual information that retains described UE in described UE context releasing request to described core net control appliance; Described access network equipment, according to described indication information, retains the contextual information of described UE;
Or,
Described access network equipment receives the UE context release command that core net control appliance sends, the indication information that comprises the contextual information that retains described UE in the release command of described UE context;
Described access network equipment, according to described indication information, retains the contextual information of described UE.
15. methods according to claim 14, is characterized in that, described access network equipment retains the contextual information of described UE, comprising:
Described access network equipment retains address and the Tunnel End Point Identifier of described core net service equipment.
16. 1 kinds of data transmission methods, is characterized in that, comprising:
Core net control appliance receives the first signaling that comprises small data that access network equipment sends;
Described core net control appliance sends the second signaling to described access network equipment, in described the second signaling, comprise address and the Tunnel End Point Identifier of described small data, core net service equipment, so that described access network equipment obtains described small data and according to the address of described core net service equipment and Tunnel End Point Identifier, sends described small data to described core net service equipment from described the second signaling.
17. 1 kinds of data transmission methods, is characterized in that, comprising:
Core net control appliance receives the first signaling that comprises small data that user equipment (UE) sends;
Described core net control appliance obtains described small data from described the first signaling;
Described core net control appliance sends the 3rd signaling that comprises described small data to core net service equipment, so that described core net service equipment sends to packet data network via core net gateway device by described small data.
18. methods according to claim 17, it is characterized in that, described core net control appliance sends the 3rd signaling that comprises described small data to described core net service equipment, so that described core net service equipment sends to packet data network to comprise described small data by core net gateway device:
Described core net control appliance sends described the 3rd signaling that comprises described small data to gateway S-GW, so that described S-GW sends to packet data network by grouped data network gateway PDN GW by described small data.
19. according to the method described in claim 17 or 18, it is characterized in that, described core net control appliance receives the first signaling that comprises small data that described UE sends, and comprising:
Described core net control appliance receives the request message of activating business that described UE sends, described in activate business in request message and comprise the 3rd indication and small data, in the request message of activating business described in described the 3rd indication is used to indicate, comprise described small data;
Described core net control appliance obtains described small data from described the first signaling, comprising:
Described core net control appliance, according to described the 3rd indication, obtains described small data from the described request message of activating business;
Described core net control appliance sends the 3rd signaling that comprises described small data to described core net service equipment, comprising:
Described core net control appliance sends to described core net service equipment the carrying request of revising, and described modification carrying request comprises the 4th indication and described small data, and described the 4th indication is used to indicate in described modification bearing request message and comprises described small data.
20. methods according to claim 17, it is characterized in that, described core net control appliance sends the 3rd signaling that comprises described small data to described core net service equipment, so that described core net service equipment sends to packet data network to comprise described small data by core net gateway device:
Described core net control appliance sends described the 3rd signaling that comprises described small data to general packet radio service gprs service node SGSN, so that described SGSN sends to packet data network via GPRS gateway node GGSN by described small data.
21. 1 kinds of data transmission methods, is characterized in that, comprising:
Core net service equipment receives the modification that the comprises small data carrying request that core net control appliance sends;
Described small data is sent to core net gateway device by described core net service equipment.
22. methods according to claim 21, is characterized in that, described core net service equipment also comprises before receiving the modification that the comprises small data carrying request of core net control appliance transmission:
Described core net service equipment receives the release access bearer request that described core net control appliance sends, the indication information that comprises the access network equipment related context information that retains user equipment (UE) in the request of described release access bearer;
Described core net service equipment, according to described indication information, retains the access network equipment related context information of described UE.
23. methods according to claim 22, is characterized in that, described core net service equipment retains the access network equipment related context information of described UE, comprising:
Described core net service equipment retains address information and the endpoint of a tunnel information of the access network equipment of described UE.
24. 1 kinds of access network equipments, is characterized in that, comprising:
Receiver, the first signaling that comprises small data sending for receiving user equipment (UE);
Processor, for obtaining described small data according to described the first signaling;
Transmitter, for described small data is sent to core net service equipment, so that described core net service equipment sends to packet data network by core net gateway device by described small data.
25. access network equipments according to claim 24, is characterized in that, described processor specifically for obtaining described small data from described the first signaling.
26. access network equipments according to claim 25, is characterized in that, if described processor does not use Non-Access Stratum to encrypt specifically for described the first signaling, from described the first signaling, obtain described small data.
27. according to the access network equipment described in claim 25 or 26, it is characterized in that, described processor is the first indication for comprising according to described the first signaling also, from described the first signaling, obtains described small data, and described the first indication is used to indicate described the first signaling and comprises described small data.
28. according to the access network equipment described in claim 24 to 27 any one, it is characterized in that,
Described transmitter is also for described the first signaling is sent to core net control appliance, so that described core net control appliance obtains described small data and described small data is carried in the second signaling and is sent to described access network equipment from described the first signaling;
The second signaling that comprises described small data that described receiver also sends for receiving described core net control appliance;
Described processor is also for obtaining described small data from described the second signaling.
29. access network equipments according to claim 28, is characterized in that, if described transmitter also uses Non-Access Stratum to encrypt for described the first signaling, described the first signaling are sent to described core net control appliance.
30. according to the access network equipment described in claim 28 or 29, it is characterized in that, described processor is the second indication for comprising according to described the second signaling also, from described the second signaling, obtains described small data; Described the second indication is used to indicate described the second signaling and comprises described small data.
31. according to the access network equipment described in any one in claim 24 to 30, it is characterized in that,
The radio resource control RRC connection request message that described receiver also sends for receiving described UE, the connection comprising in described RRC connection request message is set up former because small data transmission;
Described processor also, for set up reason and described the first signaling according to described connection, obtains described small data.
32. according to the access network equipment described in any one in claim 24 to 31, it is characterized in that,
Described transmitter also, for according to address and the Tunnel End Point Identifier of the described core net service equipment retaining, sends to described core net service equipment by the described small data obtaining from described the first signaling;
Or,
Described transmitter also, for address and the Tunnel End Point Identifier of the described core net service equipment that comprises according to described the second signaling, sends to described core net service equipment by the described small data obtaining from described the second signaling.
33. according to the access network equipment described in any one in claim 24 to 32, it is characterized in that, described transmitter is also for sending to described small data general packet radio service gprs service node SGSN, so that described SGSN sends to packet data network by GPRS gateway node GGSN by described small data.
34. according to the access network equipment described in any one in claim 24 to 33, it is characterized in that,
Described transmitter is also for sending connection release message to described UE, and starts timer, within the timing period of described timer, do not send UE context releasing request to Mobility Management Entity MME; Described access network equipment also comprises:
Memory, for retaining address and the Tunnel End Point Identifier of described core net service equipment.
35. according to the access network equipment described in any one in claim 24 to 33, it is characterized in that,
Described transmitter is also for sending UE context releasing request, the indication information that comprises the contextual information that retains described UE in described UE context releasing request to described core net control appliance;
The UE context release command that described receiver also sends for receiving core net control appliance, the indication information that comprises the contextual information that retains described UE in the release command of described UE context;
Accordingly, described access network equipment also comprises:
Memory, for according to described indication information, retains the contextual information of described UE.
36. access network equipments according to claim 35, is characterized in that, described memory is specifically for retaining address and the Tunnel End Point Identifier of described core net service equipment.
37. 1 kinds of core net control appliances, is characterized in that, comprising:
Receiver, the first signaling that comprises small data sending for receiving access network equipment;
Transmitter, for sending the second signaling to described access network equipment, in described the second signaling, comprise address and the Tunnel End Point Identifier of described small data, core net service equipment, so that described access network equipment obtains described small data and according to the address of described core net service equipment and Tunnel End Point Identifier, sends described small data to described core net service equipment from described the second signaling.
38. 1 kinds of core net control appliances, is characterized in that, comprising:
Receiver, the first signaling that comprises small data sending for receiving user equipment (UE);
Processor, for obtaining described small data from described the first signaling;
Transmitter, for send the 3rd signaling that comprises described small data to core net service equipment, so that described core net service equipment sends to packet data network by core net gateway device by described small data.
39. according to the core net control appliance described in claim 38, it is characterized in that,
Described transmitter is specifically for send described the 3rd signaling that comprises described small data to gateway S-GW, so that described S-GW sends to packet data network by grouped data network gateway PDN GW by described small data.
40. according to the core net control appliance described in claim 38 or 39, it is characterized in that,
The request message of activating business that described receiver sends specifically for receiving described UE, described in activate business in request message and comprise the 3rd indication and described small data, the described the 3rd indicates in the request message of activating business described in being used to indicate and comprises described small data;
Described processor, specifically for according to described the 3rd indication, obtains described small data from the described request message of activating business;
Described transmitter is specifically for sending the carrying request of revising to described core net service equipment, described modification carrying request comprises the 4th indication and described small data, and described the 4th indication is used to indicate in described modification bearing request message and comprises described small data.
41. according to the core net control appliance described in claim 38, it is characterized in that,
Described transmitter is also for send described the 3rd signaling that comprises described small data to general packet radio service gprs service node SGSN, so that described SGSN sends to packet data network by GPRS gateway node GGSN by small data.
42. 1 kinds of core net service equipments, is characterized in that, comprising:
Receiver, the modification that the comprises small data carrying request sending for receiving core net control appliance;
Transmitter, for sending to core net gateway device by described small data.
43. according to the core net service equipment described in claim 42, it is characterized in that,
The release access bearer request that described receiver also sends for receiving core net control appliance, the indication information that comprises the access network equipment related context information that retains user equipment (UE) in the request of described release access bearer; Accordingly, also comprise:
Memory, for according to described indication information, retains the access network equipment related context information of described UE.
44. according to the equipment described in claim 43, it is characterized in that,
Described memory is specifically for retaining address information and the endpoint of a tunnel information of access network equipment of described UE.
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Application publication date: 20140521