CN102340826A

CN102340826A - Data transmission method and device

Info

Publication number: CN102340826A
Application number: CN2011103655482A
Authority: CN
Inventors: 康艳超
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2011-11-17
Filing date: 2011-11-17
Publication date: 2012-02-01
Anticipated expiration: 2031-11-17
Also published as: CN102340826B

Abstract

The invention discloses a data transmission method and a data transmission device, wherein the data transmission device comprises the following steps that: a MTC-IWF (machine-type communication-interworking function) entity receives a small data packet of UE (user equipment) transmitted by an access network device, wherein the small data packet carries the information of a target MTC server and small data; and when the MTC-IWF entity determines that a network allows the UE to send the small data to the target MTC server, the MTC-IWF entity sends the small data to the target MTC server by using the information of the target MTC server. In the embodiment of the invention, the transmission process of the small data is controlled by the MTC-IWF entity, thereby optimizing the transmission path of the small data and reducing the transmission load of the network; and the transmission path of the small data is not required to pass through other core network devices, thereby greatly reducing the congestion possibility of the core network device because a lot of MTC devices initiate the small data transmission.

Description

A kind of method and apparatus of transfer of data

Technical field

the present invention relates to communication technical field, relate in particular to a kind of method and apparatus of transfer of data.

Background technology

The demand of (1) small data transmission (Small Data Transmission).

show for the research of M2M (Machine to Machine, machinery compartment) communication, on the mobile network, provide M2M communication to have the market potential prospect.The M2M business has proposed a lot of new demands to system, and small data transmission is an important need, and the characteristic of small data transmission is applicable to MTC (Machine Type Communication, the communication of the machine class) equipment that sends or receive small amount of data.For this reason, the current characteristic demand that has proposed as follows small data transmission: system supports the small amount of data transmission to bring minimum influence (like signaling consumption, Internet resources, the time-delay of reshuffling etc.) to network; When needs sent small amount of data, MTC equipment can be attached in the network, or from the network attachment removal; Definition to small amount of data should be able to be configured based on the strategy of CAMEL-Subscription-Information or operator.

(2) existing small data transmission solution.

) the small data transmission scheme of SMS-Based (Short Messaging Service, short message service).

are as shown in Figure 1; Be LTE (Long Term Evolution; Long Term Evolution) system utilizes the sketch map of SMS transmission small data; MTC equipment utilization SMS transmits small data, and MTC server (server) sends or receive the small data that MTC equipment sends through SMS through the mode that is connected to SMSC (Short Message Service Center, SMS service center) or directly disposes the SMSC function; This scheme is applicable to the MTC equipment that does not often send or receive data, compares with the mode of utilizing EPS (Evolved Packet System, evolved packet system) carrying to transmit small data, and this scheme is littler to the influence of system load.

in addition; The prioritization scheme that also has the small data transmission of following SMS-Based: a) transmit for the SMS based on the SGs interface in the LTE system: but flexible configuration SMS over SGs function; Can be with SMS over SGs functional configuration to certain physical entity; Also can be with SMS over SGs functional configuration to MME (Mobility Management Entity; Mobility Management Entity), as shown in Figure 2, be the sketch map of the SMS transmission small data of the MME of integrated SMS over SGs function.B) stateless SMS-IWF (stateless SMS inter-working function; Stateless short message interactive function): on the SGs interface, increase MSISDN (Mobile Subscriber ISDN Number; Mobile subscriber ISDN number) message; Make MSC (Mobile Switching Center, mobile switching centre)/VLR (Visitor Location Register, VLR Visitor Location Register) needn't store IMSI (International Mobile Subscriber Identity; International mobile subscriber identity) with the mapping relations of MSISDN; Its function can be reduced to the SMS-IWF function, and is as shown in Figure 3, is the sketch map of the SMS transmission small data of the MME of integrated SGs-IWF function.

) based on the solution of NAS (Non Access Stratum, Non-Access Stratum) signaling transmission.

SMS PDUs (Packet Data Unit is transmitted through using the NAS signaling in ; Packet Data Unit); Can save process and the signaling consumption of setting up wireless data carrying and RRC (Radio Resource Control, Radio Resource control) safe context.Like Fig. 4 and shown in Figure 5; Transmit the sketch map of up small data for utilizing the NAS signaling; Fig. 4 has described (the User Equipment at UE; Subscriber equipment) is attached to network and have under PDP (Packet Data Protocol, packet data protocol) context (context)/PDN (Packet Data Network, packet data network) connection (connection) situation how to utilize NAS transmission of messages small data; Fig. 5 has described how to utilize NAS transmission of messages small data when utilizing MTC-IWF to come transfer message, between this scheme hypothesis MME and the MTC-IWF signaling interface is arranged.

are in realizing process of the present invention; The inventor finds to exist at least in the prior art following problem: in the above-mentioned small data transmission solution; All need core net node MME to participate in the transmission course of small data, in order to carry out the transmission of small data, a large amount of MTC equipment need carry out Signalling exchange with MME; Caused the MME load excessive, congestion situation has taken place even.

Summary of the invention

embodiment of the invention provides a kind of method and apparatus of transfer of data, to reduce the load of equipment of the core network, saves signaling consumption.

In order to achieve the above object, the embodiment of the invention provides a kind of method of transfer of data, comprising:

Machine class communication interaction function MTC-IWF entity receives the small data packets of the user equipment (UE) of transmitting from access network equipment, carries target MTC server info and small data in the said small data packets;

When confirmed that when said MTC-IWF entity network allows said UE to send small data to target MTC server, said MTC-IWF entity utilized said target MTC server info that said small data is sent to said target MTC server.

The embodiment of the invention provides a kind of method of transfer of data, comprising:

Access network equipment receives the small data packets from user equipment (UE), carries UE sign, target machine class communication MTC server info and small data in the said small data packets;

said access network equipment sends to machine class communication interaction function MTC-IWF entity with said small data packets.

User equipment (UE) sends radio resource control RRC connection request message to access network equipment, carries the small data sign that is used to represent to initiate small data transmission in the said RRC connection request message;

Said UE receives RRC that said access network equipment returns and connects and set up message;

said UE sends the RRC connection setup complete message to said access network equipment; Carry small data packets in the said RRC connection setup complete message, and carry UE sign, target machine class communication MTC server info and small data in the said small data packets.

Machine class communication interaction function MTC-IWF entity receives the small data packets from the MTC server, carries small data information in the said small data packets;

When confirmed that when said MTC-IWF entity network allows said MTC server to send small data information to user equipment (UE) through access network equipment, said MTC-IWF entity sent to access network equipment with said small data information.

Access network equipment receives the small data packets from machine class communication interaction function MTC-IWF entity, carries small data information in the said small data packets, and said small data information comprises small data or Downlink Control Information;

said access network equipment sends to UE through downstream message with said small data information.

The embodiment of the invention provides a kind of machine class communication interaction function MTC-IWF entity, comprising:

Receiver module is used to receive the small data packets from the user equipment (UE) of access network equipment forwarding, carries target MTC server info and small data in the said small data packets;

Determination module is used for confirming that network allows said UE to send small data and gives target MTC server;

sending module is used for when definite network allows said UE to send small data to target MTC server, utilizing said target MTC server info that said small data is sent to target MTC server.

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

Receiver module is used to receive the small data packets from user equipment (UE), carries UE sign, target machine class communication MTC server info and small data in the said small data packets;

sending module is used for said small data packets is sent to machine class communication interaction function MTC-IWF entity.

The embodiment of the invention provides a kind of subscriber equipment, comprising:

First sending module is used for sending radio resource control RRC connection request message to access network equipment, carries the small data sign that is used to represent to initiate small data transmission in the said RRC connection request message;

Receiver module is used to receive RRC that said access network equipment returns and connects and set up message;

second sending module; Be used for sending the RRC connection setup complete message to said access network equipment; Carry small data packets in the said RRC connection setup complete message, and carry UE sign, target machine class communication MTC server info and small data in the said small data packets.

Receiver module is used to receive the small data packets from the MTC server, carries small data information in the said small data packets;

Determination module is used for confirming that network allows said MTC server to send small data information through access network equipment and gives user equipment (UE);

sending module is used for when definite network allows said MTC server to send small data information to user equipment (UE) through access network equipment, said small data information being sent to access network equipment.

Receiver module is used to receive the small data packets from machine class communication interaction function MTC-IWF entity, carries small data information in the said small data packets, and said small data information comprises small data or Downlink Control Information;

sending module is used for through downstream message said small data information being sent to UE.

Compared with prior art, the embodiment of the invention has the following advantages at least : through the transmission course of MTC-IWF entity control small data, optimized the transmission path of small data, reduced the traffic load of network; And the transmission path of small data need not pass through other equipments of the core network (like MME/SGSN (Serving GPRS Support Node; The service GPRS support node) etc.), greatly reduce equipment of the core network because a large amount of MTC equipment is initiated small data transmission and congested possibility.

Description of drawings

are in order to be illustrated more clearly in technical scheme of the present invention; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the sketch map that the LTE system utilizes SMS transmission small data in the prior art;

Fig. 2 is the sketch map of the SMS transmission small data of the MME of integrated SMS over SGs function in the prior art;

Fig. 3 is the sketch map of the SMS transmission small data of the MME of integrated SGs-IWF function in the prior art;

Fig. 4 and Fig. 5 utilize the NAS signaling to transmit the sketch map of up small data in the prior art;

Fig. 6 is a MTC configuration diagram in the prior art;

Fig. 7 is the method flow sketch map of a kind of transfer of data of providing of the embodiment of the invention one;

Fig. 8 is the form sketch map that is packaged into small data packets in the embodiment of the invention one;

Fig. 9 is the method flow sketch map of a kind of transfer of data of providing of the embodiment of the invention two;

Figure 10 is the method flow sketch map of a kind of transfer of data of providing of the embodiment of the invention three;

Figure 11 is the method flow sketch map of a kind of transfer of data of providing of the embodiment of the invention four;

Figure 12 is the method flow sketch map of a kind of transfer of data of providing of the embodiment of the invention five;

Figure 13 is the structural representation of a kind of MTC-IWF entity of providing of the embodiment of the invention six;

Figure 14 is the structural representation of a kind of access network equipment of providing of the embodiment of the invention seven;

Figure 15 is a kind of user device architecture sketch map that the embodiment of the invention eight provides;

Figure 16 is the structural representation of a kind of MTC-IWF entity of providing of the embodiment of the invention nine;

Figure 17 is the structural representation of a kind of access network equipment of providing of the embodiment of the invention ten.

Embodiment

are in realizing process of the present invention; The inventor notices: MTC configuration diagram as shown in Figure 6; The service that end-to-end communication 3GPP capable of using between MTC equipment and MTC use provides; 3GPP provides transmission and communication service, comprises that 3GPP carries service, IMS and SMS, for MTC communication is optimized.UE is connected to the 3GPP network through the Um/Uu/LTE-Uu interface; And the MTC framework comprises with drag: (1) direct model (direct connection model): by the direct communication that 3GPP operator provides, MTC uses not through MTC server, is directly connected to carrier network.(2) indirect model (model indirectly): the communication of MTC service provider's control, MTC server are the outer entities of provider domain, MTCi, and MTCsp and MTCsms are external interfaces.(3) communication of indirect model:3GPP operator control, the MTC server is positioned at carrier network, and MTCi, MTCsp and MTCsms are the internal interfaces of PLMN.(4) hybrid model (mixed model), hybrid model comprises direct model and indirect model, sets up user plane through direct model, utilizes indirect model transmitting control plane signaling.

are in the MTC framework; In order to support the indirect model and the hybrid model of MTC communication; Need be at PLMN (Public Land Mobile Network; Public land mobile network) the one or more MTC-IWF of configuration in the network, MTC-IWF can be an independent entity, also can be the functional entity on another network element; This MTC-IWF is positioned on the PLMN inner topology, through the signaling between MTCsp interface transmission 3GPP network and the MTC server.The function of MTC-IWF comprises: MTCsp is provided reference point; Before the signaling that is established to the 3GPP network, MTC server is carried out authentication; Authorize the control plane communication request of MTC server; Support the secure communication between 3GPP network and the MTC server.

are based on MT reconnaissance C framework; As the interface node of 3GPP towards the MTC server; After MTC-IWF carries out authentication to the MTC server; Mandate is established to the control plane communication of MTC server, and the small data that the MTC server that receives is sent through and MME between control messages send to MME.

in the small data transmission scheme of the current SMS-Based that provides and the solution based on NAS signaling transmission, all need equipment of the core network (like MME/SGSN etc.) to participate in the small data transmission process in addition; In order to carry out the transmission of small data, a large amount of MTC equipment need carry out Signalling exchange with equipment of the core network, makes that the load of equipment of the core network is excessive.

the present invention proposes a kind of method and apparatus of transfer of data to the problems referred to above, by the transmission course of MTC-IWF entity control small data, have optimized the transmission path of small data, have reduced the traffic load of network; And the transmission path of small data need not pass through other equipments of the core network (like MME/SGSN etc.), greatly reduces equipment of the core network because a large amount of MTC equipment are initiated small data transmission and congested possibility.

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

In the method and apparatus of the transfer of data that embodiment of the invention provides; Can be transmission course to small data; This small data is the Small Data of current agreement defined, and it can be in the current data transmission procedure based on MTC, related small data.For example; Being described as in current agreement about Small Data size: " The observed size of many of the instances of data exchanges is on the order of 1K (1024) octets or less ", therefore can know and can the data of data length below the 1K byte be called small data; Certainly in practical application, be not limited to this definition mode, can adjust, explanation no longer in detail to this in the embodiment of the invention according to actual conditions.In downlink transmission process, can also be transmission course to Downlink Control Information (like the trigger message of MTC server triggers UE etc.).

In embodiment of the invention; For the UE (carrying out the UE of small data transmission like needs) that need on the MTC-IWF entity, set up contextual information; By UE in Attach (adhering to) process; Registering to the MTC-IWF entity through equipment of the core network (like MME/SGSN etc.), is that UE creates and maintaining context information by the MTC-IWF entity.

At least include but not limited in this contextual information: the internal indicator of UE; This sign is the inner UE sign of 3GPP: like GUTI (Globally Unique Temporary UE Identity, global unique casual user's sign), IMSI etc.; The MTC server info; Sign or address like the MTC server: the MTC server info that all MTC server infos or UE report in the storage CAMEL-Subscription-Information; The address information of relevant MTC server can report through UE, configuration or DNS (Domain Name System, domain name system) inquiry mode obtain; The address of equipment of the core network or sign, i.e. sign/address of MME/SGSN, sign/address of the MME/SGSN that adheres to for current UE, this address information can be an IP addresses of nodes.

this contextual information also includes but not limited to the outside sign of one of following or combination in any: UE, the UE sign of using like the 3GPP server; The address of access network equipment or sign, i.e. the IP of eNB address/sign, this only when UE is in connected state for effectively, the address or the sign of the service eNB that expression UE is current; The reachability information of UE, i.e. current connected state or the Idle state of being in of UE; The CAMEL-Subscription-Information of UE; Comprise concrete application strategy/signatory; For example the small data transmission corresponding strategies of UE/signatory, trigger corresponding strategies/signatory etc., the content of small data transmission strategy is determined by the relevant CAMEL-Subscription-Information of the small data transmission of UE and the collocation strategy of operator jointly.

In embodiment of the invention; Supposing has one or more MTC-IWF physical address in the 3GPP network, the node in the 3GPP network (like access network equipments such as equipments of the core network such as MME/SGSN, eNB) can get access to the address of MTC-IWF entity through configuration mode or DNS inquiry mode; And between hypothesis equipment of the core network and the MTC-IWF entity interface is arranged in the embodiment of the invention, can carry out the transmission of control information; Suppose that access network equipment disposes the address of a MTC-IWF entity in a PLMN, and can set up IP connection or secure tunnel connection between the MTC-IWF entity with configuration.

Embodiment one

The embodiment of the invention one provides a kind of method of transfer of data, proposes solution with the transmission to up small data, and related context information set up and safeguarded to the MTC-IWF entity can for UE; And (comprise legal transmission control through the small data transmission process of related context information control UE; Route etc.), thus in the small data transmission process, do not need the interference of other equipments of the core network; As shown in Figure 7, the method for this transfer of data may further comprise the steps:

step 701; UE sends small data packets to access network equipment (like eNB etc.), carries UE sign, target MTC server info (like the address or the sign of target MTC server) and small data (being the content of small data) etc. in this small data packets.

step 702, access network equipment receives the small data packets from UE.

situation one, when UE is in Idle state; The processing procedure of above-mentioned steps 701 and step 702 is specially: UE is provided with small data sign (small-data-flag) in RRC message; Be used for small data transmission with this RRC message of notice access network equipment; And be packaged into small data packets (small data packet), and small data packets is sent to access network equipment through RRC container (container) according to mode as shown in Figure 8.

are concrete, and UE sends RRC connection request (RRC connection request) message to access network equipment, carries the small data sign that is used to represent to initiate small data transmission in this RRC connection request message; Access network equipment returns RRC to UE and connects foundation (RRC connection setup) message; UE sends RRC to access network equipment and connects foundation completion (RRC connection setup complete) message; Carry small data packets in this RRC connection setup complete message, and carry UE sign, target MTC server info and small data in the small data packets.

situation two, when UE is in connected state; The processing procedure of above-mentioned steps 701 and step 702 is specially: UE carries small data packets (small data packet) in uplink information migration (UL information transfer) message, and through uplink information migration message small data packets is sent to access network equipment.

step 703, access network equipment sends to the MTC-IWF entity with small data packets.

are concrete; After access network equipment receives the small data packets from UE; Because access network equipment can be known the address information of MTC-IWF entity, so access network equipment can directly be transmitted to small data packets the MTC-IWF entity of configuration.

step 704, the MTC-IWF entity receives the small data packets from access network equipment, carries UE sign, target MTC server info and small data in this small data packets.

step 705; The MTC-IWF entity judges whether network allows above-mentioned UE to send small data and give target MTC server; When definite network allows UE to send small data to target MTC server; Then execution in step 706, and when definite network did not allow UE to send small data to target MTC server, then execution in step 707.

step 706, the MTC-IWF entity utilizes target MTC server info that small data is sent to target MTC server.

step 707, the MTC-IWF entity returns failure information to access network equipment, carries corresponding cause (reason) value in this failure information.

situation one, confirm target MTC server for when authorizing the MTC server of (promptly legal) when the MTC-IWF entity, then the MTC-IWF entity confirms that network allows UE to send small data and gives target MTC server; When the MTC-IWF entity confirmed that target MTC server is not the MTC server of process mandate (promptly illegal), then the MTC-IWF entity confirmed that network does not allow UE to send small data and gives target MTC server.

situation two, when the MTC-IWF entity confirms that the length of small data meets the network regulation, then the MTC-IWF entity confirms that network allows UE to send small data and gives target MTC server; When the MTC-IWF entity confirmed that the length violation of small data closes the network regulation, then the MTC-IWF entity confirmed that network does not allow UE to send small data and gives target MTC server.

situation three, confirm target MTC server when the MTC-IWF entity and be MTC server through authorizing; And when the length of small data met the network regulation, then the MTC-IWF entity confirmed that network allows UE to send small data and gives target MTC server; Confirming target MTC server when the MTC-IWF entity is not the MTC server through authorizing, or the length violation of small data is when closing the network regulation, and then the MTC-IWF entity confirms that network does not allow UE to send small data and gives target MTC server.

are under above-mentioned situation; The MTC-IWF entity can utilize the UE sign to search corresponding contextual information; And utilize the contextual information that finds to confirm that this target MTC server is the MTC server through authorizing, perhaps not MTC server through authorizing; Perhaps; The MTC-IWF entity can utilize the UE sign from other network equipments (like network equipments such as HSS), to obtain CAMEL-Subscription-Information; And utilize the CAMEL-Subscription-Information that obtains to confirm that this target MTC server is the MTC server through authorizing, perhaps not MTC server through authorizing.

are under above-mentioned situation; The MTC-IWF entity can utilize the UE sign to search corresponding contextual information; And utilize the contextual information that finds to confirm that the length of small data meets the network regulation, perhaps the length violation of small data closes the network regulation; Perhaps, MTC-IWF can utilize the UE sign from other network equipments (like network equipments such as HSS), to obtain CAMEL-Subscription-Information by entity, and utilizes the CAMEL-Subscription-Information that obtains to confirm that the length of small data meets the network regulation, and perhaps the length violation of small data closes the network regulation; Perhaps; Directly on the MTC-IWF entity, dispose relevant information when (length like small data can not surpass the appointment size); The MTC-IWF entity can directly utilize the configuration information that is configured on the MTC-IWF entity to confirm that the length of small data meets the network regulation, and perhaps the length violation of small data closes the network regulation.

to above-mentioned different execution modes, the embodiment of the invention provides a kind of and preferred embodiment is: after the small data packets that receives from access network equipment, the MTC-IWF entity utilizes the UE sign to search the context of UE; If the MTC-IWF entity lookup, then carries out small data transmission control to the small data transmission context of UE: judge whether target MTC server is the legal MTC server through authorizing, and whether the length of small data meets the network regulation; If all satisfy, the MTC-IWF entity is transmitted to target MTC server with small data packets; Otherwise the MTC-IWF entity returns failure information and gives access network equipment, by the small data transmission request of access network equipment refusal UE, and returns the cause value; If the MTC-IWF entity does not find the small data transmission context of UE, MTC-IWF returns failure information and gives access network equipment, by the small data transmission request of access network equipment refusal UE, and returns corresponding cause value.

The transmission path of small data in the embodiment of the invention, through the transmission course of MTC-IWF entity control small data, has been optimized in sum in , has reduced the traffic load of network; And the transmission path of small data need not pass through other equipments of the core network (like MME/SGSN etc.), greatly reduces equipment of the core network because a large amount of MTC equipment are initiated small data transmission and congested possibility.

Embodiment two

The embodiment of the invention two provides a kind of method of transfer of data; Transmission with to small data information (be descending small data or Downlink Control Information, follow-up is that example describes with the small data) proposes solution, and related context information set up and safeguarded to the MTC-IWF entity can for UE; And (comprise legal transmission control through the small data transmission process of related context information control UE; Route etc.), thus in the small data transmission process, do not need the interference of other equipments of the core network; As shown in Figure 9, the method for this transfer of data may further comprise the steps:

step 901; The MTC server sends small data packets to the MTC-IWF entity; Carry UE sign, MTC server info (like address or sign) and small data (being the content of small data) in this small data packets; This UE sign can be an internal indicator, also can be outside sign.

In embodiment of the invention; In descending small data transmission process; If the MTC server is the legal MTC server through authorizing; Then the MTC server can be initiated descending small data transmission, and is packaged into small data packets (small data packet) according to mode as shown in Figure 8, and small data packets is sent to the MTC-IWF entity.

step 902, the MTC-IWF entity receives the small data packets from the MTC server, carries UE sign, MTC server info and small data in the small data packets at least.

step 903, MTC-IWF entity judge whether network allows the MTC server to send small data through access network equipment and give UE; When definite network does not allow the MTC server to send small data to UE through access network equipment, execution in step 904; When definite network allows the MTC server to send small data to UE through access network equipment, execution in step 905.

step 904, the MTC-IWF entity returns failure information to the MTC server, carries corresponding reason cause value in this failure information.

step 905, the MTC-IWF entity sends to access network equipment with small data.

situation one, confirm the MTC server when the MTC-IWF entity and for through the MTC server of authorizing the time, confirm that then network allows the MTC server to send small data through access network equipment and gives UE; When the MTC-IWF entity confirms that the MTC server is not the MTC server of process mandate, confirm that then network does not allow the MTC server to send small data to UE through access network equipment.

situation two, when the MTC-IWF entity confirms that the length of small data meets the network regulation, confirm that then network allows the MTC server to send small data through access network equipment and gives UE; When the MTC-IWF entity confirms that the length violation of small data closes the network regulation, confirm that then network does not allow the MTC server to send small data through access network equipment and gives UE.

situation three, confirm the MTC server when the MTC-IWF entity and be MTC server, and the length of small data confirms that then network allows the MTC server to send small data through access network equipment and gives UE when meeting the network regulation through authorizing; Confirming the MTC server when the MTC-IWF entity is not the MTC server through authorizing, or the length violation of small data confirms that then network does not allow the MTC server to send small data through access network equipment and gives UE when closing the network regulation.

are under above-mentioned situation; This MTC-IWF entity can utilize the UE sign to search corresponding contextual information; And utilize the contextual information that finds to confirm that this MTC server is the MTC server through authorizing, perhaps not MTC server through authorizing; Perhaps; The MTC-IWF entity can utilize the UE sign from other network equipments (like network equipments such as HSS), to obtain CAMEL-Subscription-Information; And utilize the CAMEL-Subscription-Information that obtains to confirm that this MTC server is the MTC server through authorizing, perhaps not MTC server through authorizing.

are under above-mentioned situation; This MTC-IWF entity can utilize the UE sign to search corresponding contextual information; And utilize the contextual information that finds to confirm that the length of small data meets the network regulation, perhaps the length violation of small data closes the network regulation; Perhaps, MTC-IWF can utilize the UE sign from other network equipments (like network equipments such as HSS), to obtain CAMEL-Subscription-Information by entity, and utilizes the CAMEL-Subscription-Information that obtains to confirm that the length of small data meets the network regulation, and perhaps the length violation of small data closes the network regulation; Perhaps; Directly on the MTC-IWF entity, dispose relevant information when (length like small data can not surpass the appointment size); The MTC-IWF entity can directly utilize the configuration information that is configured on the MTC-IWF entity to confirm that the length of small data meets the network regulation, and perhaps the length violation of small data closes the network regulation.

In embodiment of the invention; The MTC-IWF entity sends to small data the process of access network equipment; Specifically comprise: the MTC-IWF entity utilizes the UE sign to search corresponding contextual information; And the corresponding UE reachability information of definite UE sign, perhaps, the MTC-IWF entity utilizes the UE sign from other network equipments, to obtain the UE reachability information; When the UE reachability information is UE when being in connected state, then the MTC-IWF entity directly sends to access network equipment with small data; When the UE reachability information is UE when being in Idle state, then the MTC-IWF entity utilizes the small data transmission scheme of SMS-Based or based on the small data transmission scheme of NAS signaling small data is sent to access network equipment.

to above-mentioned different execution modes, a kind of preferred implementation that the embodiment of the invention provides is: after the small data packets that receives from the MTC server, the MTC-IWF entity utilizes the UE sign to search the context of UE; If the MTC-IWF entity lookup, then carries out small data transmission control to the small data transmission context of UE: judge whether the MTC server is the legal MTC server through authorizing, and whether the length of small data meets the network regulation.If two all satisfy; Then the MTC-IWF entity is confirmed the UE reachability information in the corresponding context of UE sign; When UE was in connected state, the MTC-IWF entity directly directly sent to access network equipment with small data, through RRC message small data packets was transmitted to UE by access network equipment; When UE was in Idle state, the MTC-IWF entity utilized the small data transmission scheme of SMS-Based perhaps based on the small data transmission scheme of NAS signaling small data to be sent to access network equipment.Otherwise the MTC-IWF entity is refused the small data transmission request of MTC server, and corresponding information is notified to operator or MTC user or MTC server.

in addition, if the MTC-IWF entity does not find the small data transmission context of UE, MTC-IWF entity notice MTC server then, this UE is in the detach attitude; Afterwards, it is to trigger UE through triggering method that the MTC server can be selected, so that transmit small data immediately; Or can wait until that UE is attached to network, and after the registration of MTC-IWF entity completion small data transmission, give UE with small data transmission again, handled repeats no more at this.

step 906, access network equipment receives the small data packets from the MTC-IWF entity, carries user equipment (UE) sign and small data in the small data packets.

step 907, access network equipment sends to UE through downstream message (like descending information transfer message) with small data packets.

In embodiment of the invention, if the failure of access network equipment transmission small data packets, then access network equipment also needs feeding back unsuccessful information to give MTC-IWF entity, gives the MTC server by the MTC-IWF entity with the bust this message informing.

Embodiment three

The embodiment of the invention three provides a kind of method of transfer of data, proposes solution with the up small data transmission process to Idle state UE, and shown in figure 10, this method may further comprise the steps:

step 1001, UE carries small-data-flag notice eNB in RRC connection request message, and UE will initiate small data transmission.

step 1002, eNB sends RRC connection setup message and connects for UE to set up RRC.

step 1003, UE carries small data packets in RRC connection setup complete message, small data is sent to eNB.

step 1004, eNB is transmitted to small data packets the MTC-IWF entity of configuration after the small data packets that receives the UE transmission.

step 1005, the MTC-IWF entity sends to target MTC server with small data.

are concrete; The MTC-IWF entity is after the small data packets that receives the eNB forwarding; If the MTC-IWF entity lookup is to the small data transmission context of UE; And the MTC server is through the MTC server of authorizing, and small data length meets the regulation (promptly meeting the requirement of CAMEL-Subscription-Information) of network; Then the MTC-IWF entity is transmitted to target MTC server with small data.

After step 1006, MTC server receive the small data of MTC-IWF entity transmission, send small data confirmation of receipt message and give the MTC-IWF entity.

step 1007, the MTC-IWF entity sends small data confirmation of receipt message (Small data ack) and gives eNB.

step 1008, eNB utilizes DL information transfer to send small data confirmation of receipt message and gives UE.

Embodiment four

The embodiment of the invention four provides a kind of method of transfer of data, proposes solution with the up small data transmission process to connected state UE, and shown in figure 11, this method may further comprise the steps:

step 1101, UE carries small data packets in UL information transfer (uplink information migration) message, small data is sent to eNB.

step 1102, eNB is transmitted to small data packets the MTC-IWF entity of configuration after the small data packets that receives the UE transmission.

step 1103, the MTC-IWF entity sends to target MTC server with small data.

After step 1104, MTC server receive the small data of MTC-IWF entity transmission, send small data confirmation of receipt message and give the MTC-IWF entity.

step 1105, MTC-IWF entity are sent small data confirmation of receipt message and are given eNB.

step 1106, eNB utilizes DL information transfer to send small data confirmation of receipt message and gives UE.

Embodiment five

The embodiment of the invention five provides a kind of method of transfer of data, proposes solution with the descending small data transmission process to connected state UE, and shown in figure 12, this method may further comprise the steps:

step 1201 sends to the MTC-IWF entity through the legal MTC server of authorizing with small data packets.

step 1202, the MTC-IWF entity sends to eNB with small data packets.

step 1203, eNB sends to UE with small data packets through DL information transfer message after the small data packets that receives the MTC-IWF transmission.

step 1204 after UE receives the small data packets of eNB transmission, is sent small data confirmation of receipt message through UL information transfer and is given eNB.

step 1205, eNB sends small data confirmation of receipt message and gives the MTC-IWF entity.

step 1206, MTC-IWF entity are sent small data confirmation of receipt message and are given the MTC server.

Embodiment six

Based on the inventive concept same with said method, a kind of machine class communication interaction function MTC-IWF entity also is provided in the embodiment of the invention, shown in figure 13, this equipment comprises:

Receiver module 11 is used to receive the small data packets from the user equipment (UE) of access network equipment forwarding, carries target MTC server info and small data in the said small data packets;

Determination module 12 is used for confirming that network allows said UE to send small data and gives target MTC server;

sending module 13 is used for when definite network allows said UE to send small data to target MTC server, utilizing said target MTC server info that said small data is sent to target MTC server.

Said determination module 12 is used for also confirming that network does not allow said UE to send small data and gives target MTC server;

said sending module 13 also is used for when definite network does not allow said UE to send small data to target MTC server, returning failure information to said access network equipment, carries corresponding reason cause value in the said failure information.

said determination module 12 specifically is used for when confirming that target MTC server is the MTC server of process mandate, confirms that network allows said UE to send small data and gives target MTC server; When confirming that target MTC server is not the MTC server of process mandate, confirm that network does not allow said UE to send small data and gives target MTC server.

said determination module 12 specifically is used for when the length of confirming said small data meets the network regulation, confirms that network allows said UE to send small data and gives target MTC server; When the length violation of confirming said small data closes the network regulation, confirm that network does not allow said UE to send small data and gives target MTC server.

said determination module 12 specifically is used for when confirming that target MTC server is the MTC server through authorizing, and the length of said small data confirms that network allows said UE to send small data and gives target MTC server when meeting the network regulation; When confirming that target MTC server is not the MTC server through authorizing, or the length violation of said small data confirms that network does not allow said UE to send small data and gives target MTC server when closing the network regulation.

Also carry the UE sign in said small data packets; Said determination module 12; Be further used for utilizing said UE sign to search corresponding contextual information; And utilize the contextual information that finds to confirm that target MTC server is the MTC server through authorizing, perhaps not MTC server through authorizing; Perhaps, utilizing said UE sign from other network equipments, to obtain CAMEL-Subscription-Information, and utilize the CAMEL-Subscription-Information that obtains to confirm that target MTC server is the MTC server through authorizing, perhaps is not the MTC server through authorizing.

Also carry the UE sign in said small data packets; Said determination module 12; Be further used for utilizing said UE sign to search corresponding contextual information; And utilize the contextual information that finds to confirm that the length of said small data meets the network regulation, perhaps the length violation of said small data closes the network regulation; Perhaps, utilize said UE sign from other network equipments, to obtain CAMEL-Subscription-Information, and utilize the CAMEL-Subscription-Information that obtains to confirm that the length of said small data meets the network regulation, perhaps the length violation of said small data closes the network regulation; Perhaps, utilize the configuration information that is configured on the said MTC-IWF entity to confirm that the length of said small data meets the network regulation, perhaps the length violation of said small data closes the network regulation.

wherein, each module of apparatus of the present invention can be integrated in one, and also can separate deployment.Above-mentioned module can be merged into a module, also can further split into a plurality of submodules.

Embodiment seven

Based on the inventive concept same with said method, a kind of access network equipment also is provided in the embodiment of the invention, shown in figure 14, this equipment comprises:

Receiver module 21 is used to receive the small data packets from user equipment (UE), carries UE sign, target machine class communication MTC server info and small data in the said small data packets;

sending module 22 is used for said small data packets is sent to machine class communication interaction function MTC-IWF entity.

said receiver module 21 specifically is used to receive the radio resource control RRC connection request message from said UE, carries the small data sign that is used to represent to initiate small data transmission in the said RRC connection request message; Send the RRC connection to said UE and set up message; And receive RRC connection setup complete message from said UE, carry said small data packets in the said RRC connection setup complete message.

Embodiment eight

Based on the inventive concept same with said method, a kind of subscriber equipment also is provided in the embodiment of the invention, shown in figure 15, this equipment comprises:

First sending module 31 is used for sending radio resource control RRC connection request message to access network equipment, carries the small data sign that is used to represent to initiate small data transmission in the said RRC connection request message;

Receiver module 32 is used to receive RRC that said access network equipment returns and connects and set up message;

second sending module 33; Be used for sending the RRC connection setup complete message to said access network equipment; Carry small data packets in the said RRC connection setup complete message, and carry UE sign, target machine class communication MTC server info and small data in the said small data packets.

Embodiment nine

Based on the inventive concept same with said method, a kind of machine class communication interaction function MTC-IWF entity also is provided in the embodiment of the invention, shown in figure 16, this equipment comprises:

receiver module 41 is used to receive the small data packets from the MTC server, carries small data information in the said small data packets; Said small data information is small data or is Downlink Control Information.

Determination module 42 is used for confirming that network allows said MTC server to send small data information through access network equipment and gives user equipment (UE);

sending module 43 is used for when definite network allows said MTC server to send small data information to user equipment (UE) through access network equipment, said small data information being sent to access network equipment.

Said determination module 42 is used for also confirming that network does not allow said MTC server to send small data information through access network equipment and gives UE;

said sending module 43; Also be used for when definite network does not allow said MTC server to send small data information to UE through access network equipment; Return failure information to said MTC server, carry corresponding reason cause value in the said failure information.

said determination module 42 specifically is used for when confirming that said MTC server is the MTC server of process mandate, confirms that network allows said MTC server to send small data information to UE through access network equipment; When confirming that said MTC server is not the MTC server of process mandate, confirm that network does not allow said MTC server to send small data information through access network equipment and gives UE.

said determination module 42 specifically is used for when the length of confirming said small data meets the network regulation, confirms that network allows said MTC server to send small data information through access network equipment and gives UE; When the length violation of confirming said small data closes the network regulation, confirm that network does not allow said MTC server to send small data information through access network equipment and gives UE.

said determination module 42; Specifically be used for when confirming that said MTC server is the MTC server through authorizing; And when the length of said small data meets the network regulation, confirm that network allows said MTC server to send small data information through access network equipment and gives UE; When confirming that said MTC server is not the MTC server through authorizing, or the length violation of said small data confirms that network does not allow said MTC server to send small data information through access network equipment and gives UE when closing the network regulation.

Also carry the UE sign in said small data packets; Said determination module 42; Be further used for utilizing said UE sign to search corresponding contextual information; And utilize the contextual information that finds to confirm that said MTC server is the MTC server through authorizing, perhaps not MTC server through authorizing; Perhaps, utilizing said UE sign from other network equipments, to obtain CAMEL-Subscription-Information, and utilize the CAMEL-Subscription-Information that obtains to confirm that said MTC server is the MTC server through authorizing, perhaps is not the MTC server through authorizing.

Also carry the UE sign in said small data packets; Said determination module 42; Be further used for utilizing said UE sign to search corresponding contextual information; And utilize the contextual information that finds to confirm that the length of said small data meets the network regulation, perhaps the length violation of said small data closes the network regulation; Perhaps, utilize said UE sign from other network equipments, to obtain CAMEL-Subscription-Information, and utilize the CAMEL-Subscription-Information that obtains to confirm that the length of said small data meets the network regulation, perhaps the length violation of said small data closes the network regulation; Perhaps, utilize the configuration information that is configured on the said MTC-IWF entity to confirm that the length of said small data meets the network regulation, perhaps the length violation of said small data closes the network regulation.

Also carry the UE sign in said small data packets; Said sending module 43; Specifically be used to utilize said UE sign to search corresponding contextual information; And confirm the corresponding UE reachability information of said UE sign, perhaps, utilize said UE sign from other network equipments, to obtain the UE reachability information; When the UE reachability information is UE when being in connected state, said small data information is directly sent to access network equipment; When the UE reachability information is UE when being in Idle state, utilizes based on the small data transmission scheme of short message service SMS or based on the small data transmission scheme of Non-Access Stratum NAS signaling said small data information is sent to access network equipment.

Embodiment ten

Based on the inventive concept same with said method, a kind of access network equipment also is provided in the embodiment of the invention, shown in figure 17, this equipment comprises:

Receiver module 51 is used to receive the small data packets from machine class communication interaction function MTC-IWF entity, carries small data information in the said small data packets, and said small data information comprises small data or Downlink Control Information;

sending module 52 is used for through downstream message said small data information being sent to UE.

are through the description of above execution mode; Those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform; Can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding; The part that technical scheme of the present invention contributes to prior art in essence in other words can be come out with the embodied of software product; This computer software product is stored in the storage medium; Comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.

it will be appreciated by those skilled in the art that accompanying drawing is the sketch map of a preferred embodiment, and module in the accompanying drawing or flow process might not be that embodiment of the present invention is necessary.

it will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be merged into a module, also can further split into a plurality of submodules.

the invention described above embodiment sequence number is not represented the quality of embodiment just to description.

Disclosedly more than be merely several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.

Claims

1. A kind of method of transfer of data is characterized in that, comprising:

2. The method of claim 1 is characterized in that, said MTC-IWF entity receives the small data packets of the user equipment (UE) of transmitting from access network equipment, also comprises afterwards:

When confirm that when said MTC-IWF entity network does not allow said UE to send small data to target MTC server; Said MTC-IWF entity returns failure information to said access network equipment, carries corresponding reason cause value in the said failure information.

3. Method as claimed in claim 2 is characterized in that,

Said MTC-IWF entity confirms that network allows said UE to send small data and gives target MTC server; Comprise: when said MTC-IWF entity confirmed that target MTC server is the MTC server of process mandate, said MTC-IWF entity confirmed that network allows said UE to send small data and gives target MTC server;

said MTC-IWF entity confirms that network does not allow said UE to send small data and gives target MTC server; Comprise: when said MTC-IWF entity confirmed that target MTC server is not the MTC server of process mandate, said MTC-IWF entity confirmed that network does not allow said UE to send small data and gives target MTC server.

4. Method as claimed in claim 2 is characterized in that,

Said MTC-IWF entity confirms that network allows said UE to send small data and gives target MTC server; Comprise: when said MTC-IWF entity confirmed that the length of said small data meets the network regulation, said MTC-IWF entity confirmed that network allows said UE to send small data and gives target MTC server;

said MTC-IWF entity confirms that network does not allow said UE to send small data and gives target MTC server; Comprise: when said MTC-IWF entity confirmed that the length violation of said small data closes the network regulation, said MTC-IWF entity confirmed that network does not allow said UE to send small data and gives target MTC server.

5. Method as claimed in claim 2 is characterized in that,

Said MTC-IWF entity confirms that network allows said UE to send small data and gives target MTC server; Comprise: confirm target MTC server when said MTC-IWF entity and be MTC server through authorizing; And when the length of said small data met the network regulation, said MTC-IWF entity confirmed that network allows said UE to send small data and gives target MTC server;

said MTC-IWF entity confirms that network does not allow said UE to send small data and gives target MTC server; Comprise: confirming target MTC server when said MTC-IWF entity is not the MTC server through authorizing; Or the length violation of said small data is when closing the network regulation, and said MTC-IWF entity confirms that network does not allow said UE to send small data and gives target MTC server.

6. Like claim 3 or 5 described methods, it is characterized in that also carry the UE sign in the said small data packets, said method further comprises:

Said MTC-IWF entity utilizes said UE sign to search corresponding contextual information, and utilizes the contextual information that finds to confirm that target MTC server is the MTC server through authorizing, and perhaps is not the MTC server through authorizing; Perhaps,

said MTC-IWF entity utilizes said UE sign from other network equipments, to obtain CAMEL-Subscription-Information; And utilize the CAMEL-Subscription-Information that obtains to confirm that target MTC server is the MTC server through authorizing, perhaps not MTC server through authorizing.

7. Like claim 4 or 5 described methods, it is characterized in that also carry the UE sign in the said small data packets, said method further comprises:

Said MTC-IWF entity utilizes said UE sign to search corresponding contextual information, and utilizes the contextual information that finds to confirm that the length of said small data meets the network regulation, and perhaps the length violation of said small data closes the network regulation; Perhaps,

Said MTC-IWF entity utilizes said UE sign from other network equipments, to obtain CAMEL-Subscription-Information, and utilizes the CAMEL-Subscription-Information that obtains to confirm that the length of said small data meets the network regulation, and perhaps the length violation of said small data closes the network regulation; Perhaps,

The configuration information that said MTC-IWF entity utilization is configured on the said MTC-IWF entity confirms that the length of said small data meets the network regulation, and perhaps the length violation of said small data closes the network regulation.

8. A kind of method of transfer of data is characterized in that, comprising:

9. Method as claimed in claim 8 is characterized in that, said access network equipment receives the small data packets from user equipment (UE), comprising:

Said access network equipment receives the radio resource control RRC connection request message from said UE, carries the small data sign that is used to represent to initiate small data transmission in the said RRC connection request message;

Said access network equipment sends the RRC connection to said UE and sets up message;

said access network equipment receives the RRC connection setup complete message from said UE, carries said small data packets in the said RRC connection setup complete message.

10. A kind of method of transfer of data is characterized in that, comprising:

11. A kind of method of transfer of data is characterized in that, comprising:

12. Method as claimed in claim 11 is characterized in that, said MTC-IWF entity receives the small data packets from the MTC server, also comprises afterwards:

When confirm that when said MTC-IWF entity network does not allow said MTC server to send small data information to UE through access network equipment; Said MTC-IWF entity returns failure information to said MTC server, carries corresponding reason cause value in the said failure information.

13. Method as claimed in claim 12 is characterized in that,

Said MTC-IWF entity confirms that network allows said MTC server to send small data information through access network equipment and gives UE; Comprise: when said MTC-IWF entity confirmed that said MTC server is the MTC server of process mandate, said MTC-IWF entity confirmed that network allows said MTC server to send small data information to UE through access network equipment;

said MTC-IWF entity confirms that network does not allow said MTC server to send small data information through access network equipment and gives UE; Comprise: when said MTC-IWF entity confirmed that said MTC server is not the MTC server of process mandate, said MTC-IWF entity confirmed that network does not allow said MTC server to send small data information through access network equipment and gives UE.

14. Method as claimed in claim 12 is characterized in that,

Said MTC-IWF entity confirms that network allows said MTC server to send small data information through access network equipment and gives UE; Comprise: when said MTC-IWF entity confirmed that the length of said small data meets the network regulation, said MTC-IWF entity confirmed that network allows said MTC server to send small data information through access network equipment and gives UE;

said MTC-IWF entity confirms that network does not allow said MTC server to send small data information through access network equipment and gives UE; Comprise: when said MTC-IWF entity confirmed that the length violation of said small data closes the network regulation, said MTC-IWF entity confirmed that network does not allow said MTC server to send small data information through access network equipment and gives UE.

15. Method as claimed in claim 12 is characterized in that,

Said MTC-IWF entity confirms that network allows said MTC server to send small data information through access network equipment and gives UE; Comprise: confirm said MTC server when said MTC-IWF entity and be MTC server through authorizing; And when the length of said small data met the network regulation, said MTC-IWF entity confirmed that network allows said MTC server to send small data information through access network equipment and gives UE;

said MTC-IWF entity confirms that network does not allow said MTC server to send small data information through access network equipment and gives UE; Comprise: confirming said MTC server when said MTC-IWF entity is not the MTC server through authorizing; Or the length violation of said small data is when closing the network regulation, and said MTC-IWF entity confirms that network does not allow said MTC server to send small data information through access network equipment and gives UE.

16. Like claim 13 or 15 described methods, it is characterized in that also carry the UE sign in the said small data packets, said method further comprises:

Said MTC-IWF entity utilizes said UE sign to search corresponding contextual information, and utilizes the contextual information that finds to confirm that said MTC server is the MTC server through authorizing, and perhaps is not the MTC server through authorizing; Perhaps,

said MTC-IWF entity utilizes said UE sign from other network equipments, to obtain CAMEL-Subscription-Information; And utilize the CAMEL-Subscription-Information that obtains to confirm that said MTC server is the MTC server through authorizing, perhaps not MTC server through authorizing.

17. Like claim 14 or 15 described methods, it is characterized in that also carry the UE sign in the said small data packets, said method further comprises:

18. Method as claimed in claim 11 is characterized in that, also carries the UE sign in the said small data packets, and said MTC-IWF entity sends to access network equipment with said small data information, comprising:

Said MTC-IWF entity utilizes said UE sign to search corresponding contextual information, and confirms the corresponding UE reachability information of said UE sign, and perhaps, said MTC-IWF entity utilizes said UE sign from other network equipments, to obtain the UE reachability information;

when the UE reachability information be UE when being in connected state, said MTC-IWF entity directly sends to access network equipment with said small data information; When the UE reachability information is UE when being in Idle state, the utilization of said MTC-IWF entity sends to access network equipment based on the small data transmission scheme of short message service SMS or based on the small data transmission scheme of Non-Access Stratum NAS signaling with said small data information.

19. is characterized in that like claim 11 or 18 described methods, said small data information is small data or is Downlink Control Information.

20. A kind of method of transfer of data is characterized in that, comprising:

21. A kind of machine class communication interaction function MTC-IWF entity is characterized in that, comprising:

22. MTC-IWF entity as claimed in claim 21 is characterized in that,

Said determination module is used for also confirming that network does not allow said UE to send small data and gives target MTC server;

said sending module also is used for when definite network does not allow said UE to send small data to target MTC server, returning failure information to said access network equipment, carries corresponding reason cause value in the said failure information.

23. MTC-IWF entity as claimed in claim 22 is characterized in that,

Said determination module specifically is used for when confirming that target MTC server is the MTC server of process mandate, confirms that network allows said UE to send small data and gives target MTC server;

confirm that network does not allow said UE to send small data and gives target MTC server when confirming that target MTC server is not the MTC server of process mandate.

24. MTC-IWF entity as claimed in claim 22 is characterized in that,

Said determination module specifically is used for when the length of confirming said small data meets the network regulation, confirms that network allows said UE to send small data and gives target MTC server;

When the network regulation is closed when the length violation of confirming said small data in , confirm that network does not allow said UE to send small data and gives target MTC server.

25. MTC-IWF entity as claimed in claim 22 is characterized in that,

Said determination module specifically is used for when confirming that target MTC server is the MTC server through authorizing, and the length of said small data confirms that network allows said UE to send small data and gives target MTC server when meeting the network regulation;

when confirming that target MTC server is not the MTC server through authorizing, or the length violation of said small data confirms that network does not allow said UE to send small data and gives target MTC server when closing the network regulation.

26. Like claim 23 or 25 described MTC-IWF entities, it is characterized in that, also carry the UE sign in the said small data packets,

Said determination module is further used for utilizing said UE sign to search corresponding contextual information, and utilizes the contextual information that finds to confirm that target MTC server is the MTC server through authorizing, and perhaps is not the MTC server through authorizing; Perhaps,

utilize said UE sign from other network equipments, to obtain CAMEL-Subscription-Information, and utilize the CAMEL-Subscription-Information that obtains to confirm that target MTC server is the MTC server through authorizing, and perhaps are not the MTC servers through authorizing.

27. Like claim 24 or 25 described MTC-IWF entities, it is characterized in that, also carry the UE sign in the said small data packets,

Said determination module is further used for utilizing said UE sign to search corresponding contextual information, and utilizes the contextual information that finds to confirm that the length of said small data meets the network regulation, and perhaps the length violation of said small data closes the network regulation; Perhaps,

Utilize said UE sign from other network equipments, to obtain CAMEL-Subscription-Information, and utilize the CAMEL-Subscription-Information that obtains to confirm that the length of said small data meets the network regulation, perhaps the length violation of said small data closes the network regulation; Perhaps,

utilize the configuration information that is configured on the said MTC-IWF entity to confirm that the length of said small data meets the network regulation, and perhaps the length violation of said small data closes the network regulation.

28. A kind of access network equipment is characterized in that, comprising:

29. Access network equipment as claimed in claim 28 is characterized in that,

said receiver module specifically is used to receive the radio resource control RRC connection request message from said UE, carries the small data sign that is used to represent to initiate small data transmission in the said RRC connection request message; Send the RRC connection to said UE and set up message; And receive RRC connection setup complete message from said UE, carry said small data packets in the said RRC connection setup complete message.

30. A kind of subscriber equipment is characterized in that, comprising:

31. A kind of machine class communication interaction function MTC-IWF entity is characterized in that, comprising:

32. MTC-IWF entity as claimed in claim 31 is characterized in that,

Said determination module is used for also confirming that network does not allow said MTC server to send small data information through access network equipment and gives UE;

said sending module; Also be used for when definite network does not allow said MTC server to send small data information to UE through access network equipment; Return failure information to said MTC server, carry corresponding reason cause value in the said failure information.

33. MTC-IWF entity as claimed in claim 32 is characterized in that,

Said determination module specifically is used for when confirming that said MTC server is the MTC server of process mandate, confirms that network allows said MTC server to send small data information to UE through access network equipment;

confirm that network does not allow said MTC server to send small data information through access network equipment and gives UE when confirming that said MTC server is not the MTC server of process mandate.

34. MTC-IWF entity as claimed in claim 32 is characterized in that,

Said determination module specifically is used for when the length of confirming said small data meets the network regulation, confirms that network allows said MTC server to send small data information through access network equipment and gives UE;

When the network regulation is closed when the length violation of confirming said small data in , confirm that network does not allow said MTC server to send small data information through access network equipment and gives UE.

35. MTC-IWF entity as claimed in claim 32 is characterized in that,

Said determination module specifically is used for when confirming that said MTC server is the MTC server through authorizing, and the length of said small data confirms that network allows said MTC server to send small data information through access network equipment and gives UE when meeting the network regulation;

when confirming that said MTC server is not the MTC server through authorizing, or the length violation of said small data confirms that network does not allow said MTC server to send small data information through access network equipment and gives UE when closing the network regulation.

36. Like claim 33 or 35 described MTC-IWF entities, it is characterized in that, also carry the UE sign in the said small data packets,

Said determination module is further used for utilizing said UE sign to search corresponding contextual information, and utilizes the contextual information that finds to confirm that said MTC server is the MTC server through authorizing, and perhaps is not the MTC server through authorizing; Perhaps,

utilize said UE sign from other network equipments, to obtain CAMEL-Subscription-Information, and utilize the CAMEL-Subscription-Information that obtains to confirm that said MTC server is the MTC server through authorizing, and perhaps are not the MTC servers through authorizing.

37. Like claim 34 or 35 described MTC-IWF entities, it is characterized in that, also carry the UE sign in the said small data packets,

38. MTC-IWF entity as claimed in claim 31 is characterized in that, also carries the UE sign in the said small data packets,

Said sending module specifically is used to utilize said UE sign to search corresponding contextual information, and confirms the corresponding UE reachability information of said UE sign, perhaps, utilizes said UE sign from other network equipments, to obtain the UE reachability information;

directly send to access network equipment when the UE reachability information is UE when being in connected state with said small data information; When the UE reachability information is UE when being in Idle state, utilizes based on the small data transmission scheme of short message service SMS or based on the small data transmission scheme of Non-Access Stratum NAS signaling said small data information is sent to access network equipment.

39. is characterized in that like claim 31 or 38 described MTC-IWF entities, said small data information is small data or is Downlink Control Information.

40. A kind of access network equipment is characterized in that, comprising: