CN104349388A - Method and system for sending small data, and user equipment - Google Patents
Method and system for sending small data, and user equipment Download PDFInfo
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Abstract
The invention discloses a method for sending small data. The method comprises: when user equipment (UE) sends uplink data to a network side, if the UE determines that the currently sent data is the small data according to a small data criterion, according to a path determined through negotiation with the network side, sending the small data to the network side. The invention also discloses a system for sending small data, and UE. According to the invention, a sending mode of small data service can be determined at a node, and the demand for determining to use the small data service in a third generation partnership project (3GPP) is satisfied.
Description
Technical Field
The present invention relates to data transmission technology in the field of mobile communications, and in particular, to a method, a system, and User Equipment (UE) for transmitting small data.
Background
In order to effectively utilize mobile network resources, the third generation partnership Project (3 GPP) has proposed Machine Type Communication (MTC), i.e., a Service of Machine to Machine (Machine to Machine) and Machine to Human (Machine to Man) Communication, which has a Service range far beyond the Communication between the former Human to Human (H2H), and the MTC has great differences from the H2H Communication mode in terms of access control, charging, security, Quality of Service (QoS), Service mode, and the like.
The MTC ue triggers include Mobile Originated (MO) and Mobile Terminated (MT) services, and there are a lot of services in the MTC ue in the form of small data, such as MTC ue status information, periodic status update, heartbeat information, and Instant Messaging (IM). The data size of such small data information is small, for example, within 1 kbyte, and sometimes it needs to be sent frequently, and sometimes it needs to be sent to a large number of user equipments simultaneously. For most of the scenarios that the ue needs to send small data, the ue needs to complete the idle-to-connected transition, and therefore the generated control signaling is relatively more significant. In order to reduce the control signaling generated by the state transition of the ue and to effectively transmit and receive small data, a more appropriate small data transmission mode needs to be designed. However, several methods for transmitting small data traffic, which have been proposed in 3GPP, cannot specify a transmission method of small data traffic in a node.
Disclosure of Invention
In view of this, an object of the present invention is to provide a method, a system, and a User Equipment (UE) for sending small data, which can determine a sending method of a small data service at a node, and meet a requirement for deciding to adopt the small data service in a 3GPP network.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the invention provides a method for sending small data, which comprises the following steps:
when UE sends uplink data to a network side, if the UE judges the currently sent data to be small data according to a small data criterion, the UE sends the small data to the network side according to a path determined by negotiation with the network side.
In the above scheme, the small data criterion is: indicating that the currently transmitted data is small data;
and/or the packet length of the data to be sent currently is smaller than a preset threshold value;
and/or the number of the packets of the data to be sent currently is smaller than a preset threshold value;
and/or the data to be sent currently conforms to a specified small data format;
and/or the data to be transmitted currently and the small data transmitted last time have the same service characteristics.
In the foregoing solution, the sending the small data to the network side according to the path determined by negotiating with the network side includes:
negotiating with network side equipment to determine a sending path according to signaling interaction of access, and/or mobility management, and/or session management processes, judging that small data is sent through a control plane or a user plane, if the small data is sent through the control plane, sending the small data to an MME (mobility management entity) by UE (user equipment) through an eNB, and sending the small data by the MME according to the path determined by negotiation;
and if the small data is sent through the user plane, the UE sends the small data to the SGW through the eNB, and the SGW sends the small data according to the path determined by the negotiation.
The invention provides a method for sending small data, which comprises the following steps:
when a network side sends downlink data to UE, a control plane sending mode is adopted, and when the SGW or MTC-IWF determines that the data is small data according to a small data criterion, the small data is sent to the UE according to a path determined by negotiation;
and when the network side sends downlink data to the UE, a data plane sending mode is adopted, and the SGW determines that the data is small data according to a small data criterion, and sends the small data to the UE according to a path determined by negotiation.
In the foregoing solution, before the network side adopts the control plane transmission manner, or before the network side adopts the data plane transmission manner, the method further includes: and the data transmission mode obtained by the network side and the UE through negotiation is a control plane transmission mode or a data plane transmission mode, and a small data transmission path is determined.
In the above scheme, when the SGW or MTC-IWF determines that the data is small data according to a small data criterion, sending the small data to the UE in a small data service processing manner includes:
when data is sent through the MTC-IWF, the MTC-IWF judges whether the data is small data or not according to a small data criterion, if so, the small data is sent to UE according to a path determined by negotiation, otherwise, the data is processed according to a normal mode;
and when the data is sent through the SGW, the SGW judges whether the data is small data or not according to a small data criterion, if so, the small data is sent to the UE according to a path determined by the negotiation, and otherwise, the data is processed according to a normal mode.
The present invention also provides a UE, including: the device comprises a receiving and sending module, a processing and negotiation module and a judgment module; wherein,
the judging module is used for sending the small data to the transceiving module when judging that the currently sent data is the small data according to a small data criterion when sending the uplink data;
the processing and negotiation module is used for sending the path information determined by negotiation to the processing module;
and the transceiver module is used for transmitting the small data according to the path information transmitted by the processing and negotiation module.
In the above scheme, the judging module is specifically configured to store a small data criterion;
wherein the small data criterion comprises: indicating that the currently transmitted data is small data;
and/or the packet length of the data to be sent currently is smaller than a preset threshold value;
and/or the number of the packets of the data to be sent currently is smaller than a preset threshold value;
and/or the data to be sent currently conforms to a specified small data format;
and/or the data to be transmitted currently and the small data transmitted last time have the same service characteristics.
In the foregoing solution, the processing and negotiating module is specifically configured to determine, according to an access, and/or mobility management, and/or session management procedure, to send small data through a control plane or a user plane, and negotiate to obtain a sending path.
The invention also provides a system for sending small data, which comprises:
the SGW is used for sending the small data according to a path determined by negotiation when the received downlink data is determined to be the small data according to a small data criterion;
and the MTC-IWF is used for sending the small data according to the path determined by negotiation when the received downlink data is determined to be the small data according to the small data criterion.
In the above solution, the system further includes: eNB and MME; wherein,
the eNB is used for sending the small data to the MME when sending the received small data through the control plane; when the small data is sent through a user plane, sending the small data to an SGW;
the MME is used for sending the small data according to the path determined by negotiation after receiving the small data sent by the eNB;
correspondingly, the SGW is further configured to send the small data sent by the eNB according to the path determined by the negotiation.
In the above scheme, the MTC-IWF is specifically configured to determine whether received downlink data is small data according to a small data criterion, if so, send the small data according to a path determined by the negotiation, otherwise, process the data according to a normal manner;
the SGW is specifically configured to determine whether the received downlink data is small data according to a small data criterion, and if so, send the small data according to a path determined by the negotiation, otherwise, process the data according to a normal manner.
According to the method, the system and the UE for sending the small data, when the UE sends the uplink data and judges that the currently sent data is the small data according to the small data criterion, the small data is sent to the network side according to the path determined by negotiation with the network side; when a network side sends downlink data to UE (user equipment) and a control plane sending mode is adopted, if the SGW or MTC-IWF determines that the data is small data according to a small data criterion, the small data is sent to the UE according to a route obtained by negotiation; and when the network side sends downlink data to the UE and adopts a data plane sending mode, if the SGW determines that the data is small data according to a small data criterion, the SGW sends the small data to the UE according to a route obtained by negotiation. In this way, it is determined which node device is used to make a decision on the small data and determine the route for transmitting the small data in the uplink and downlink directions, respectively.
Drawings
FIG. 1 is a flow chart of operations of an uplink data side in a method for transmitting small data according to the present invention;
fig. 2 is an operation flow of the downlink data side in the method for sending small data according to the present invention;
FIG. 3 is a schematic diagram of a UE configuration according to the present invention;
FIG. 4 is a schematic diagram of a system architecture for transmitting small data according to the present invention;
FIG. 5 is a block diagram illustrating an embodiment of the present invention;
FIG. 6 is a flowchart illustrating a method according to a first embodiment of the present invention;
FIG. 7 is a schematic diagram of a second embodiment of the present invention;
FIG. 8 is a flowchart illustrating a second method according to an embodiment of the present invention;
FIG. 9 is a block diagram of a third embodiment of the present invention;
fig. 10 is a flowchart illustrating a method according to a third embodiment of the present invention.
Detailed Description
The basic idea of the invention is: when UE sends uplink data to a network side, if the UE judges that the currently sent data is small data according to a small data criterion, the UE sends the small data to the network side according to a path determined by negotiation with the network side;
when a network side sends downlink data to UE, a control plane sending mode is adopted, and when the SGW or MTC-IWF determines that the data is small data according to a small data criterion, the small data is sent to the UE according to a path determined by negotiation; and when the network side sends downlink data to the UE, a data plane sending mode is adopted, and the SGW determines that the data is small data according to a small data criterion, and sends the small data to the UE according to a path determined by negotiation.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The operation flow of the uplink data side in the method for sending the small data, as shown in fig. 1, includes the following steps:
step 101: when User Equipment (UE) sends uplink data to a network side, the UE judges whether the currently sent data is small data according to a small data criterion, if so, executing step 102; otherwise, the data is sent according to the normal mode, and the processing flow is ended.
Here, the small data criterion is: directly indicating that the currently sent data is small data;
and/or the packet length of the data to be sent currently is smaller than a preset threshold value;
and/or the number of the packets of the data to be sent currently is smaller than a preset threshold value;
and/or the data to be sent currently conforms to a specified small data format;
and/or the data to be transmitted currently and the small data transmitted last time have the same service characteristics.
Wherein the service features include, but are not limited to: data packet length, number of packets, packet arrival interval, etc.
Step 102: and sending the small data to the network side according to the determined path obtained by negotiation with the network side.
Specifically, according to signaling interaction of access, and/or mobility management, and/or session management procedures, negotiating with network side equipment to determine a transmission path, determining, by the UE, that the small data is transmitted by using a control plane or a user plane, if the small data is transmitted by using the control plane, transmitting, by the UE, the small data to an MME through an eNB, and transmitting, by the MME, the small data according to the path determined by the negotiation; and if the user plane is adopted, the UE sends the small data to the SGW through the eNB, and the SGW sends the small data according to the path determined by the negotiation.
Here, the determination is: the UE determines one or more network side negotiation devices through the current process, and determines that the current small data is sent by adopting a control plane or a user plane according to a preset small data sending mode in the one or more network side negotiation devices.
Wherein, the small data transmission mode comprises: a control plane and a data plane;
the network side negotiation equipment is as follows: eNB, or MME, or SGW, or MTC-IWF.
The access procedure includes at least one of: attach, service request; the mobility management procedure includes at least one of: switching and updating the position; the session management flow comprises at least one of the following: session establishment, session modification, session release and quality of service, QoS, negotiation.
Further, after determining that the current small data is sent by using the control plane or the user plane, the method further includes: the UE and the network side negotiation equipment inform the network side negotiation equipment of the determined small data transmission mode by adding the selected small data transmission mode in the designated field in the signaling interaction information; and the UE informs the network side to negotiate the sending path of the small data.
The UE sends the small data to an MME through an eNB, and the MME sends the small data according to the path determined by the negotiation: and the UE sends the small data to an MME, and the MME sends the small data to an application server according to a predetermined sending path of the small data.
The UE sends the small data to an SGW through an eNB, and the SGW sends the small data according to the path determined by the negotiation: and the UE sends the small data to an SGW (serving gateway), and the SGW sends the small data to an application server through a PGW (packet gateway).
As shown in fig. 2, the operation flow of the downlink data side in the method for sending small data provided by the present invention includes:
step 201: when the network side sends downlink data to the UE, judging whether a control plane sending mode or a data plane sending mode is adopted, and if the control plane sending mode is adopted, executing step 202; otherwise, step 204 is performed.
Before the step 201, the data transmission method negotiated by the network side and the UE is a control plane transmission method or a data plane transmission method, and a transmission route of the small data is obtained.
Step 202: and sending the data to the SGW or the MTC-IWF.
Specifically, when determining that data is sent through the MTC-IWF according to the control signaling, the application server sends the data to the MTC-IWF and sends a route obtained through negotiation;
and when determining that the data is sent through the SGW according to the control signaling, the application server sends the data to the SGW and sends the route obtained by negotiation.
Step 203: and when the SGW or the MTC-IWF determines that the data is small data according to a small data criterion, sending the small data to the UE according to a path determined by negotiation, and ending the processing flow.
Specifically, the MTC-IWF judges whether the data is small data according to a small data criterion, if so, the small data is sent to UE according to a route obtained by negotiation, otherwise, the data is processed according to a normal mode;
and the SGW judges whether the data is small data according to a small data criterion, if so, the SGW sends the small data to the UE according to the route obtained by negotiation, and otherwise, the SGW processes the data according to a normal mode.
Step 204: and sending the data to the SGW.
Step 205: and when the SGW determines that the data is small data according to a small data criterion, the SGW sends the small data to the UE according to a path determined by negotiation.
As shown in fig. 3, the UE provided in the present invention includes: the device comprises a receiving and sending module, a processing and negotiation module and a judgment module; wherein,
the judging module is used for sending the small data to the transceiving module when judging that the currently sent data is the small data according to a small data criterion when sending the uplink data;
the processing and negotiation module is used for sending the path information determined by negotiation to the processing module;
and the transceiver module is used for transmitting the small data according to the path information transmitted by the processing and negotiation module.
The judging module is specifically configured to judge whether data to be currently sent is small data according to a preset small data criterion.
The small data criterion includes: indicating that the currently transmitted data is small data;
and/or the packet length of the data to be sent currently is smaller than a preset threshold value;
and/or the number of the packets of the data to be sent currently is smaller than a preset threshold value;
and/or the data to be sent currently conforms to a specified small data format;
and/or the data to be transmitted currently and the small data transmitted last time have the same service characteristics.
The processing and negotiation module is specifically configured to determine, according to an access, and/or mobility management, and/or session management procedure, to send small data through a control plane or a user plane, and negotiate to obtain a sending path.
The UE may be an MTC user equipment or a smartphone.
As shown in fig. 4, a system for transmitting small data according to the present invention includes:
the SGW is used for sending the small data according to a path determined by negotiation when the received downlink data is determined to be the small data according to a small data criterion;
and the MTC-IWF is used for sending the small data according to the path determined by negotiation when the received downlink data is determined to be the small data according to the small data criterion.
The system further comprises: eNB and MME; wherein,
the eNB is used for sending the small data to the MME when sending the received small data through the control plane; when the small data is sent through a user plane, sending the small data to an SGW;
the MME is used for sending the small data according to the path determined by negotiation after receiving the small data sent by the eNB;
correspondingly, the SGW is further configured to send the small data sent by the eNB according to the path determined by the negotiation.
The method specifically comprises the steps of judging whether the received downlink data is small data according to a small data criterion, if so, sending the small data according to a path determined by negotiation, and otherwise, processing the data according to a normal mode;
the SGW is specifically configured to determine whether the received downlink data is small data according to a small data criterion, and if so, send the small data according to a path determined by the negotiation, otherwise, process the data according to a normal manner.
The first embodiment,
An embodiment of the present invention is directed to a scenario in which small data is sent upstream, where a system block diagram is shown in fig. 5, and a flowchart is shown in fig. 6, where the method mainly includes:
step 601: when receiving the application layer data, the UE judges whether the application layer data is small data according to a preset criterion, if so, the step 603 is switched to; otherwise, the UE sends data according to a normal mode.
Step 602: and the UE and the network side negotiate to select a mode for sending the small data service.
The network side comprises one or more of the following devices: eNB, MME, SGW, MTC-IWF.
The negotiation is as follows: the method is realized through the existing procedures, such as the procedures of RRC connection establishment, attachment, location update, activation and the like.
The small data sending mode comprises the following steps: a user plane small data transmission mode and a control plane small data transmission mode. The control plane small data sending mode comprises the following steps: Tsp/T5 flow.
The determination is as follows: one or more small data transmission modes are selected from small data transmission modes supported by both the UE and the network side, and the selected small data transmission mode is determined by adding a specific parameter field in the signaling interaction process.
The UE judges that the received data does not belong to the small data, and then the data is sent in a normal mode; the normal mode refers to an existing mode of sending data through user plane bearer, that is, the UE establishes user plane bearer and PDN connection with the SGW/PGW, and sends data to the target device through the PDN connection.
Here, the predetermined criterion includes at least one of: indication of application layer, packet size, number of packets, local policy, small data bearer activation, last small data transmission.
Step 603: and the UE sends the small data to the eNB according to the selected mode for sending the small data service.
Here, the UE carries a small data indicator, which is a small data indicator, in the transmission information, and the eNB selects a transmission path according to the small data indicator and other indication information.
Step 604: the eNB determines whether to send small data through the control plane, if so, the process goes to step 605; otherwise, go to step 606.
In step 603, the UE indicates in the transmission information that the transmission path: a control plane or a user plane; the specific indication information can be explicit or implicit, and is determined according to the prior agreement of the UE and the network.
Step 605: and the eNB sends the small data to the target equipment through the MME and ends the processing flow.
The MME is an MME providing services for UE; and the eNB sends control signaling carrying small data through an S1-MME interface, and the control signaling can be existing signaling or newly added dedicated signaling.
The MME may send the small data to the target device in two ways: the MME sends the small data to the MTC-IWF through a T5 interface, and the MTC-IWF sends the small data to the target equipment through a Tsp interface; and the MME sends the small data to the target equipment through the SGW/PGW.
And the MME selects one of the small data transmission modes.
The target device is typically an application server.
Step 606: and the eNB sends the small data to the target equipment through the SGW.
The eNB sends small data to the SGW through an S1-U interface; the SGW is an SGW providing services for UE, and the SGW sends small data to target equipment through a PGW.
Example II,
In a second embodiment of the present invention, for a scenario where a downlink sends small data through a control plane, a system block diagram is shown in fig. 7, and a flowchart is shown in fig. 8, where the method mainly includes:
step 801: and the UE and the network side negotiate to select a mode for sending the small data service.
This step is the same as step 602, and is not described herein again.
Step 802: the application server judges whether to send data through the MTC-IWF, if so, the step is turned to 803; otherwise, go to step 807.
And the application server selects whether to transmit data through the MTC-IWF according to the prior agreement, the local strategy, the network configuration and the like.
Step 803: and the application server sends data to the MTC-IWF.
The application server sends data to the MTC-IWF through the Tsp interface; the data encapsulation is sent in signaling.
Step 804: and the MTC-IWF judges whether the data sent by the application server is small data, if so, the step is shifted to step 805, and if not, the step is shifted to step 806.
The MTC-IWF judges whether the data is small data according to a predetermined criterion, wherein the predetermined criterion comprises at least one of the following: indication of the server, packet size, number of packets, local policy, small data bearer activation, last small data transmission.
Step 805: and the MTC-IWF sends the small data to the target user equipment according to the mode of sending the small data service, and finishes the processing flow.
The MTC-IWF has two modes for sending small data: one is that the MTC-IWF sends small data to the MME through a T5 interface, and the MME sends the small data to the target UE by adopting NAS signaling; the other is that the MTC-IWF sends the small data to the SMS-SC through a T4 interface, and the SMS-SC sends the small data to the target UE in a short message mode; .
Step 806: and the MTC-IWF processes the received data according to a normal mode and ends the processing flow.
The MTC-IWF determines that the received data is not small data, and the MTC-IWF may continue to send the received data to the target UE as signaling, or send a response to the application server: indicating received data is abnormal and discarding the data; the specific measures taken by the MTC-IWF are determined according to the prior agreement, the local policy, the indication of the application server and the like.
Step 807: and the application server sends data to the gateway PGW/SGW.
The application server sends data to a gateway PGW through an SGi interface, and the PGW sends data to the SGW; the SGW is a serving SGW for the target UE.
Step 808: SGW judges whether the data is small data, if yes, the process goes to step 809; otherwise, go to step 811.
The SGW judges whether the data is small data according to a predetermined criterion, wherein the predetermined criterion comprises at least one of the following: indication of an application server, packet size, number of packets, local policy, small data bearer activation, and last small data transmission.
Step 809: and the SGW sends the small data to the MME according to the mode determined by negotiation.
And the SGW sends small data to the MME according to the mode determined in the step 801, the MME is the service MME of the target UE, the SGW carries small data indication in the information sent to the MME, and the MME determines a further sending path according to the small data indication.
Step 810: the MME sends small data to the target UE through the eNB.
The information sent by the MME to the eNB carries a small data indication; if the target UE is in an idle state, the MME sends a paging message, and the target UE which receives the paging message sends a response message; and the MME encapsulates the small data through NAS signaling, the eNB carries a small data indication in the information sent to the target UE, and the target UE carries out processing according to the small data indication.
Step 811: and the SGW transmits data to the target UE through the eNB according to the normal flow.
And if the SGW judges that the data is normal data, the data is sent to the eNB through an S1-U interface, and the eNB sends the data to the target UE through air interface data radio bearer.
Example III,
In the third embodiment of the present invention, for a scenario where a small data message is sent downstream through a user plane, a system block diagram is shown in fig. 9, and a flowchart is shown in fig. 10, where the method mainly includes:
step 1001: and the UE and the network side negotiate to determine a small data service sending mode.
This step is the same as step 602, and is not described herein again.
Step 1002: and the application server AS sends data to the gateway PGW/SGW.
The AS sends data to the PGW through an SGi interface, and the PGW sends data to the SGW; the SGW is a serving SGW where the target UE is located.
Step 1003: the SGW determines whether the data is small data, and if so, it goes to step 1004, otherwise, it goes to step 1009.
The SGW judges whether the data is small data according to a predetermined criterion, wherein the predetermined criterion comprises at least one of the following: indication of an application server, packet size, number of packets, local policy, small data bearer activation, and last small data transmission. If the small data is determined, a small data sending mode is adopted, otherwise, a normal data processing mode is adopted.
Step 1004: the SGW queries whether the target UE is in an idle state, if so, it goes to step 1005, otherwise, it goes to step 1008.
And the SGW initiates a paging process when inquiring that the target UE is in an idle state, otherwise, the SGW sends small data to the target UE through the eNB.
Step 1005: and the SGW sends a downlink small data notification message to the MME.
The SGW sends a downlink small data notification message to the MME through an S11 interface.
Step 1006: the MME pages the target UE.
And the MME sends a paging message through the eNB in a service area, wherein the paging type is small data.
Step 1007: the target UE transmits a paging response message.
And after receiving the paging message, the target UE sends a paging response message to the MME through the eNB.
Step 1008: the SGW sends small data to the target UE through the eNB.
The SGW sends small data to target UE through the eNB, and small data information carries a small data instruction; and the target UE processes the small data according to the small data indication.
Step 1009: and the SGW sends data to the target UE according to the normal flow.
And the SGW judges that the received data is not small data, and processes according to a normal flow: i.e. data is sent to the target UE by the eNB.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (12)
1. A method for transmitting small data, the method comprising:
when User Equipment (UE) sends uplink data to a network side, if the UE judges that the currently sent data is small data according to a small data criterion, the UE sends the small data to the network side according to a path determined by negotiation with the network side.
2. The method of claim 1, wherein the small data criterion is: indicating that the currently transmitted data is small data;
and/or the packet length of the data to be sent currently is smaller than a preset threshold value;
and/or the number of the packets of the data to be sent currently is smaller than a preset threshold value;
and/or the data to be sent currently conforms to a specified small data format;
and/or the data to be transmitted currently and the small data transmitted last time have the same service characteristics.
3. The method of claim 2, wherein the sending the small data to the network side according to the path determined by the negotiation with the network side comprises:
negotiating with network side equipment to determine a sending path according to signaling interaction of access, and/or mobility management, and/or session management processes, judging that small data is sent through a control plane or a user plane, if the small data is sent through the control plane, sending the small data to an MME (mobility management entity) by UE (user equipment) through an eNB, and sending the small data by the MME according to the path determined by negotiation;
and if the small data is sent through the user plane, the UE sends the small data to the SGW through the eNB, and the SGW sends the small data according to the path determined by the negotiation.
4. A method of transmitting small data, the method comprising:
when a network side sends downlink data to UE, a control plane sending mode is adopted, and when the SGW or MTC-IWF determines that the data is small data according to a small data criterion, the small data is sent to the UE according to a path determined by negotiation;
and when the network side sends downlink data to the UE, a data plane sending mode is adopted, and the SGW determines that the data is small data according to a small data criterion, and sends the small data to the UE according to a path determined by negotiation.
5. The method of claim 4, wherein before the network side adopts the control plane transmission mode or before the network side adopts the data plane transmission mode, the method further comprises: and the data transmission mode obtained by the network side and the UE through negotiation is a control plane transmission mode or a data plane transmission mode, and a small data transmission path is determined.
6. The method of claim 5, wherein when the SGW or MTC-IWF determines that the data is small data according to a small data criterion, sending the small data to the UE in a small data service processing manner comprises:
when data is sent through the MTC-IWF, the MTC-IWF judges whether the data is small data or not according to a small data criterion, if so, the small data is sent to UE according to a path determined by negotiation, otherwise, the data is processed according to a normal mode;
and when the data is sent through the SGW, the SGW judges whether the data is small data or not according to a small data criterion, if so, the small data is sent to the UE according to a path determined by the negotiation, and otherwise, the data is processed according to a normal mode.
7. A UE, wherein the UE comprises: the device comprises a receiving and sending module, a processing and negotiation module and a judgment module; wherein,
the judging module is used for sending the small data to the transceiving module when judging that the currently sent data is the small data according to a small data criterion when sending the uplink data;
the processing and negotiation module is used for sending the path information determined by negotiation to the processing module;
and the transceiver module is used for transmitting the small data according to the path information transmitted by the processing and negotiation module.
8. The UE of claim 7,
the judging module is specifically used for storing a small data criterion;
wherein the small data criterion comprises: indicating that the currently transmitted data is small data;
and/or the packet length of the data to be sent currently is smaller than a preset threshold value;
and/or the number of the packets of the data to be sent currently is smaller than a preset threshold value;
and/or the data to be sent currently conforms to a specified small data format;
and/or the data to be transmitted currently and the small data transmitted last time have the same service characteristics.
9. The UE of claim 8,
the processing and negotiation module is specifically configured to determine, according to an access, and/or mobility management, and/or session management procedure, to send small data through a control plane or a user plane, and negotiate to obtain a sending path.
10. A system for transmitting small data, the system comprising:
the SGW is used for sending the small data according to a path determined by negotiation when the received downlink data is determined to be the small data according to a small data criterion;
and the MTC-IWF is used for sending the small data according to the path determined by negotiation when the received downlink data is determined to be the small data according to the small data criterion.
11. The system of claim 10, further comprising: eNB and MME; wherein,
the eNB is used for sending the small data to the MME when sending the received small data through the control plane; when the small data is sent through a user plane, sending the small data to an SGW;
the MME is used for sending the small data according to the path determined by negotiation after receiving the small data sent by the eNB;
correspondingly, the SGW is further configured to send the small data sent by the eNB according to the path determined by the negotiation.
12. The system of claim 11,
the MTC-IWF is specifically used for judging whether the received downlink data is small data according to a small data criterion, if so, sending the small data according to a path determined by the negotiation, otherwise, processing the data according to a normal mode;
the SGW is specifically configured to determine whether the received downlink data is small data according to a small data criterion, and if so, send the small data according to a path determined by the negotiation, otherwise, process the data according to a normal manner.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310312292.8A CN104349388A (en) | 2013-07-23 | 2013-07-23 | Method and system for sending small data, and user equipment |
| PCT/CN2013/085615 WO2014161293A1 (en) | 2013-07-23 | 2013-10-21 | Small data sending method and system, and user equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310312292.8A CN104349388A (en) | 2013-07-23 | 2013-07-23 | Method and system for sending small data, and user equipment |
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