WO2015032037A1 - 传输小数据包的方法和设备 - Google Patents
传输小数据包的方法和设备 Download PDFInfo
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- WO2015032037A1 WO2015032037A1 PCT/CN2013/082916 CN2013082916W WO2015032037A1 WO 2015032037 A1 WO2015032037 A1 WO 2015032037A1 CN 2013082916 W CN2013082916 W CN 2013082916W WO 2015032037 A1 WO2015032037 A1 WO 2015032037A1
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- Prior art keywords
- data packet
- small data
- small
- indication information
- sent
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- 238000000034 method Methods 0.000 title claims abstract description 80
- 230000005540 biological transmission Effects 0.000 claims abstract description 131
- 230000011664 signaling Effects 0.000 claims abstract description 28
- 238000001914 filtration Methods 0.000 claims description 26
- 238000012545 processing Methods 0.000 claims description 19
- 238000004891 communication Methods 0.000 claims description 16
- 230000003993 interaction Effects 0.000 claims description 14
- 238000009472 formulation Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 17
- 238000010295 mobile communication Methods 0.000 description 4
- 244000118350 Andrographis paniculata Species 0.000 description 2
- 230000004931 aggregating effect Effects 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000007493 shaping process Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/74—Address processing for routing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
Definitions
- the present invention relates to communications technologies, and in particular, to a method and apparatus for transmitting small data packets.
- the terminal is connected to the application server through the mobile communication network, and performs an application such as remote monitoring, mobile payment, etc. by interacting with the application server;
- the architecture of the mobile communication network is, for example, the terminal accesses through the evolved base station eNodeB.
- the mobility management entity to the core network is connected to the service gateway via the mobility management entity, and connected to the packet data network gateway through the service gateway, and finally connected to the application server by the packet data network gateway.
- the terminal may be connected to the mobile management entity, the mobile management entity is connected to the service interaction function entity, and the service interaction function entity is connected to the application server.
- the uplink data packet of the terminal may be a small data packet, and the data amount of only a few bytes is called a small data packet.
- the terminal can carry it to the mobility management entity in the non-access stratum (NAS) message, and does not need to be transmitted by establishing a bearer.
- NAS non-access stratum
- the current small data packet is determined by the terminal itself. For some malicious terminals, it may transmit large data packets that should be sent through the ordinary bearer, or directly through the NAS message, or split the big data packet into multiple small packets.
- the data packet is sent to the mobility management entity through the NAS message, thereby causing signaling congestion of the mobility management entity, and the network burden is heavy.
- the service gateway may have misjudged the type of data packet due to network transmission factors. It is not a small data packet. It is determined to be a small data packet, and a small data packet is transmitted through a control plane transmission method such as a NAS message, for example, by a downlink data notification message transmission; if a subsequent discovery is not a small data packet, the bearer transmission is re-established, which also increases the network signaling burden. . SUMMARY OF THE INVENTION The present invention provides a method and apparatus for transmitting small data packets, the purpose of which is to ensure the accuracy of small data packet judgments and reduce network load.
- a method for transmitting a small data packet including:
- the data transmission device receives the small packet indication information sent by the gateway;
- the data transmission device determines, according to the small data packet indication information, that the data packet to be sent is a small data packet, the data transmission device transmits the small data packet by using a control plane transmission manner.
- the data transmission device is a user equipment UE, where the small data packet is transmitted by using a control plane transmission manner, specifically: the UE passes a non-access layer The NAS message sends the small data packet to the mobility management entity.
- the data transmission device receives the small data packet indication information sent by the gateway, including: the UE receiving the packet data network gateway P- a traffic filtering template TFT sent by the GW, where the TFT includes a packet filter corresponding to the small data packet, the data packet filter is provided with small data packet indication information, and the data transmission device indicates the information according to the small data packet. Determining that the data packet to be sent is a small data packet, including: the UE searching for a data packet filter corresponding to the data packet to be sent, and if the data packet filter is configured with the small data packet indication information, determining the The data packet to be sent is a small data packet.
- the data transmission device receives the small data packet indication information sent by the gateway, where: the UE receives the traffic sent by the P-GW.
- the template TFT and the small packet indication information are filtered, and the TFT includes only a packet filter corresponding to the small data packet, where the small packet indication information is used to indicate that the bearer corresponding to the TFT is specifically used for transmitting the small data packet.
- the data transmission device determines, according to the small data packet indication information, that the data packet to be sent is a small data packet, and the method includes: the UE searching for a data packet filter corresponding to the data packet to be sent, and viewing the data Whether the bearer corresponding to the TFT where the packet filter is located is a bearer dedicated to transmitting small data packets, and if yes, determining that the data packet to be sent is a small data packet.
- the data transmission device receives the small packet indication information that is sent by the gateway, and includes: the UE receiver type communication service interaction function a packet filter of a small data packet sent by the entity MTC-IWF, the data packet filter having small data packet indication information; the data transmission device determining, according to the small data packet indication information, that the data packet to be sent is small data
- the packet includes: the UE searches for a data packet filter corresponding to the data packet to be sent, and if the data packet filter has the small data packet indication information, determining that the data packet to be sent is a small data packet.
- the small data packet indication information includes: The small data volume identifier extended in the device, or the filter name corresponding to the packet filter of the small data packet.
- the data transmission device is a serving gateway S-GW
- the small data packet is transmitted by using a control plane transmission manner, specifically: the S-GW passes The downlink data notification message sends the small data packet to the mobility management entity.
- the data transmission device receives the small packet indication information sent by the gateway, including: the S-GW receiving the P-GW transmission The data packet to be sent, the GTP-U packet header of the data packet is provided with small data packet indication information; the data transmission device determines, according to the small data packet indication information, that the data packet to be sent is a small data packet, including The S-GW determines, according to the small data packet indication information, that the data packet to be sent is a small data packet.
- a method for transmitting a small data packet including:
- the gateway formulates small packet indication information
- the gateway sends the small data packet indication information to the data transmission device, so that the data transmission device uses the control plane transmission according to the small data packet indication information when determining that the data packet to be sent is a small data packet.
- the small packet is transmitted in a manner.
- the gateway is a packet data network gateway P-GW, and the data transmission device is a user equipment UE.
- the determining, by the gateway, the small data packet indication information includes: the P-GW includes a small data packet in the traffic filtering template TFT Corresponding packet filter, and set a small packet indication for the packet filter.
- the determining, by the gateway, the small data packet indication information includes: the P-GW placing the data packet filter of the small data packet In the same traffic filtering template TFT, the small data packet indication information is set, and the small data packet indication information is used to indicate that the bearer corresponding to the TFT is a bearer dedicated to transmitting small data packets.
- the sending, by the gateway, the small data packet indication information to the data transmission device includes: the P-GW is The traffic shaping template TFT and the small data packet indication are carried in the newly created or modified bearer signaling request message.
- the method before the gateway formulates the small data packet indication information, the method further includes: The P-GW receives a PCC rule sent by the PCRF, where the PCC rule includes a packet filter corresponding to the small data packet and small packet indication information corresponding to the data packet filter, where the small data packet indicates information Determining, according to the P-GW, the small data packet indication information; or, the P-GW acquiring a local configuration policy, where the local configuration policy is used by the P-GW to formulate the small data packet indication according to the information.
- the gateway is a machine type communication service interaction function entity MTC-IWF
- the data transmission device is a user equipment UE.
- the determining, by the gateway, the small data packet indication information includes: the MTC-IWF acquiring a data packet filter corresponding to the small data packet
- the packet filter has small packet indication information
- the small packet indication information includes: a small data volume identifier extended in the packet filter, or a filter corresponding to the small packet packet filter name.
- the method further includes: the MTC-IWF adjusting the data packet filter according to an operator policy.
- the gateway is a packet data network gateway P-GW, and the data transmission device is a serving gateway S_GW.
- the determining, by the gateway, the small data packet indication information includes: sending, by the P-GW, a small data packet that is sent to the S-GW Set the small packet indication information in the GTP-U header.
- a data transmission device including:
- a receiving unit configured to receive small packet indication information sent by the gateway
- a processing unit configured to determine, according to the small data packet indication information received by the receiving unit, whether the data packet to be sent is a small data packet;
- a transmitting unit configured to: when the processing unit determines that the data packet to be sent is a small data packet, transmit the small data packet by using a control plane transmission manner.
- the data transmission device is a user The UE device; the transmitting unit, particularly for non-access stratum (NAS) message to a small data packet to the MME.
- NAS non-access stratum
- the receiving unit is specifically configured to receive a traffic filtering template TFT sent by a packet data network gateway P-GW, where the TFT is in the TFT a data packet filter corresponding to the small data packet, where the data packet filter is configured with small data packet indication information, where the processing unit is configured to search for a data packet filter corresponding to the data packet to be sent, if the data is The packet filter is configured with the small packet indication information, and then determining that the data packet to be sent is a small data packet.
- the receiving unit is configured to receive, by the P-GW, a traffic filtering template TFT and small packet indication information, where The TFT packet includes only a packet filter corresponding to the small data packet, where the small packet indication information is used to indicate that the bearer corresponding to the TFT is used for transmitting a small data packet;
- the processing unit is specifically configured to search A packet filter corresponding to the data packet to be sent, and checking whether the bearer corresponding to the TFT where the packet filter is located is a bearer dedicated to transmitting a small data packet, and if yes, determining that the data packet to be sent is small data pack.
- the receiving unit is specifically used for a data packet of a small data packet sent by a receiver type communication service interaction function entity MTC-IWF.
- a filter the packet filter has small packet indication information
- the processing unit is configured to: find a packet filter corresponding to the data packet to be sent, if the packet filter has the small packet Instructing information, determining that the data packet to be sent is a small data packet.
- the small data packet indication information received by the receiving unit include: A small amount of data identifier that is extended in the packet filter, or a filter name that corresponds to the small packet packet filter.
- the data transmission device is a serving gateway S-GW, and the transmitting unit is configured to send the small data packet to the mobility management by using a downlink data notification message. entity.
- the receiving unit is specifically configured to receive a data packet to be sent transmitted by the P-GW, where the data packet is The small data packet indication information is set in the header; the processing unit is specifically configured to determine, according to the small data packet indication information, that the data packet to be sent is a small data packet.
- a gateway including:
- a sending unit configured to send the small data packet indication information to the data transmission device, so that the data transmission device controls, according to the small data packet indication information, when determining that the data packet to be sent is a small data packet
- the small data packet is transmitted in a surface transmission manner.
- the gateway is a packet data network gateway P-GW, and the data transmission device is a user equipment UE.
- the determining unit is specifically configured to include, in the traffic filtering template TFT, a packet filter corresponding to the small data packet, and The packet filter sets small packet indication information.
- the determining unit is specifically configured to: put, in a same traffic filtering template TFT, a packet filter of a small data packet, And setting the small data packet indication information, where the small data packet indication information is used to indicate that the bearer corresponding to the TFT is a bearer dedicated to transmitting the small data packet.
- the sending unit is configured to carry the traffic filtering template TFT and the small in the newly created or modified bearer signaling request message. Packet indication information.
- the determining unit is further configured to: Before the information, the PCC rule sent by the PCRF is received, where the PCC rule includes a packet filter corresponding to the small data packet and small packet indication information corresponding to the data packet filter, where the small data packet indication information is used by the
- the P-GW generates the small data packet indication information according to the configuration.
- the P-GW obtains a local configuration policy, where the local configuration policy is used by the P-GW to formulate the small data packet indication information.
- the gateway is a machine type communication service interaction function entity MTC-IWF
- the data transmission device is a user equipment UE.
- the determining unit is specifically configured to obtain a data packet filter corresponding to the small data packet, where the data packet is The filter has small packet indication information; the small packet indication information includes: a small data amount identifier extended in the packet filter, or a filter name corresponding to the small packet packet filter.
- the determining unit is further configured to adjust the data packet filter according to an operator policy.
- the gateway is a packet data network gateway P-GW, and the data transmission device is a serving gateway S-GW.
- the determining unit is configured to set a small data packet indication information in a packet header of a small data packet sent to the S-GW. .
- the technical effect of the method and device for transmitting small data packets provided by the present invention is as follows:
- the data transmission device performs small data packet determination according to small packet indication information sent by the gateway, so that the determination of the small data packet is performed under network control.
- the gateway can accurately know whether a certain data packet is a small data packet, rather than being determined by the data transmission device itself, so that the data transmission device can accurately determine the small data packet, and avoid the network message caused by the judgment error. Increase the order, thus reducing the network burden.
- FIG. 1 is a network architecture diagram 1 of an embodiment of a method for transmitting a small data packet according to the present invention
- FIG. 2 is a network architecture diagram 2 of an embodiment of a method for transmitting a small data packet according to the present invention
- FIG. 3 is a schematic flowchart of a method for transmitting a small data packet according to an embodiment of the present invention
- FIG. 4 is a schematic flowchart diagram of another embodiment of a method for transmitting a small data packet according to the present invention.
- FIG. 5 is a schematic signaling diagram of still another embodiment of a method for transmitting a small data packet according to the present invention.
- FIG. 6 is a schematic signaling diagram of still another embodiment of a method for transmitting a small data packet according to the present invention.
- FIG. 7 is a schematic signaling diagram of still another embodiment of a method for transmitting a small data packet according to the present invention.
- FIG. 8 is a schematic signaling diagram of still another embodiment of a method for transmitting a small data packet according to the present invention.
- FIG. 9 is a schematic structural diagram of an embodiment of a data transmission device according to the present invention.
- FIG. 10 is a schematic structural diagram of an embodiment of a gateway according to the present invention.
- An embodiment of the present invention provides a method for transmitting a small data packet, where the small data packet refers to A data packet of a small data amount, for example, information of only a few bytes of data; the method can be used for a user equipment (User Equipment, UE for short), a terminal initiates MO (Mobi le Originate), and a terminal receives MT (Mobi le Terminated ) Under the scene of small packets.
- the method of the embodiment of the present invention may be applied to, for example, a machine type communication (Machine Type Communications, MTC for short), for example, a user equipment transmits a small data packet to a peer end by using a Mobi le Management Entity (abbreviation: ⁇ E).
- MTC Machine Type Communications
- the peer transmits a small data packet to the MME through a Serving Gateway (S-GW), and sends the packet to the user equipment.
- S-GW Serving Gateway
- the method of the embodiment of the present invention is also applicable to a common communication scenario other than the MTC; and the method of the embodiment of the present invention is applicable to multiple networks, such as a Long Time Evolve (LTE) network, and a universal mobile cloud communication.
- LTE Long Time Evolve
- System Universal Mobi le Telecommunications System, UMTS for short
- GSM Global System for Mobi le communication
- MME can use GPRS service support node (Serving GPRS support node) , referred to as: SGSN, also referred to as mobile management entity); in the GSM network, the MME can be replaced by a Mobi-Switching Center (MSC).
- GPRS service support node referred to as: SGSN, also referred to as mobile management entity
- MSC Mobi-Switching Center
- FIG. 1 is a network architecture diagram 1 of an embodiment of a method for transmitting a small data packet according to the present invention.
- the UE accesses the ⁇ E/S-GW of the core network through the eNodeB, and connects to the P-GW through the S-GW.
- FIG. 2 is a network architecture diagram 2 of an embodiment of a method for transmitting small data packets according to the present invention.
- the service interaction function entity MTC-IWF is set, and for the uplink small data packet, the UE sends the small data packet to the ⁇ E, and then the ⁇ E will receive The received small data packet is carried in the control plane message and sent to the MTC-IWF.
- the MTC-IWF is carried in the control plane signaling and sent to the MTC server.
- the transmission path described in FIG. 1 is also shown in FIG. 2, that is, the UE and the UE.
- the small data packet interaction between the MTC servers still uses the IP data bearer, and the UE sends the small data packet to the ⁇ E, and the ⁇ E sends the received small data packet to the S-type through the GTP-C control plane or the GTP-U user plane.
- the GW is then sent by the S-GW to the P-GW through the corresponding data bearer, and the P-GW then routes the small data packet IP to the MTC server.
- Embodiment 1 Taking the architecture of FIG. 1 and FIG. 2 as an example, the method for transmitting small data packets of the present invention is described: Embodiment 1
- FIG. 3 is a schematic flowchart of a method for transmitting a small data packet according to an embodiment of the present invention.
- the method in this embodiment may be performed by a data transmission device. As shown in FIG. 3, the method may include:
- the data transmission device receives the small packet indication information sent by the gateway.
- the data transmission device is, for example, a UE or an S-GW.
- the devices can transmit small data packets to the mobile management entity, so they can be referred to as data transmission devices.
- the gateway is, for example, a P-GW or an MTC-IWF.
- the devices can generate small packet indication information to be sent to the data transmission device, so that the data transmission device determines whether the data packet is a small data packet.
- the small data packet indication information may also be in various forms.
- the indication information may be extended to set small data packet indication information in a data packet filter corresponding to the data packet, if the data transmission device searches for a corresponding data packet.
- a packet filter which has small packet indication information, can determine that the packet is a small packet.
- the indication information may also be used to indicate that the traffic filter template (TFT) corresponding to the data packet filter is a bearer dedicated to transmitting a small data packet, or may determine that the data packet is Small data packet.
- the indication information may also be a specific filter name. If the data transmission device searches for a packet filter corresponding to the data packet, and the filter has the specific filter name, it may be determined that the data packet is small. data pack.
- the indication information may also be small packet indication information added by the P-GW in the GTP-U header of the data packet.
- the small data packet indication information may be set to other forms, and the embodiment of the present invention does not limit, as long as the data packet is determined to be a small data packet.
- the data transmission device determines, according to the small data packet indication information, that the data packet to be sent is a small data packet, the data transmission device transmits the small data packet by using a control plane transmission manner.
- the data transmission device sends the small data packet to the mobility management entity by using a control plane transmission manner (of course, those skilled in the art may understand that the mobility management entity is not the final destination device for data packet transmission), and may also have Variety of ways.
- the control plane transmission mode may be a NAS message, and when determining that the data packet is a small data packet, the UE may send the small data packet to the ⁇ 5 through the NAS message.
- the control plane transmission method may be a downlink data notification message (Downlink Data Notification) sent by the S-GW to the ⁇ E.
- the data transmission device determines whether the data packet is a small data packet according to the small data packet indication information sent by the gateway, and if it is determined that the small data packet is transmitted through the control plane, such as NAS. The message is transmitted to the mobility management entity.
- the small packet indication information is determined by the gateway, for example, the P-GW formulates and sends to the UE, and the gateway can accurately know whether a certain data packet is a small data packet.
- the P-GW formulates small packet indication information according to the PCC rules issued by the PCRF, and the PCC rule includes a packet filter corresponding to the small data packet and the small packet indication information, and the P-GW determines accordingly.
- the packet filter is a small packet filter that sets the small packet indication information for its extension; or, the P-GW itself has predetermined which type of packet filter is a small packet filter, You can set small packet indications for the filter. Therefore, the data transmission device determines whether the data packet is a small data packet according to the small data packet indication information sent by the gateway, so that the determination of the small data packet can be made accurate, and avoiding the misjudgment caused by the data transmission device itself as determined by the prior art or In the case of malicious transmission, the network signaling burden is alleviated.
- FIG. 4 is a schematic flowchart of another embodiment of a method for transmitting a small data packet according to the present invention.
- the method in this embodiment may be performed by a core network gateway. As shown in FIG. 4, the method may include:
- the gateway formulates small data packet indication information.
- the gateway may be, for example, a P-GW or an MTC-IWF.
- the manner in which the gateway formulates the small packet indication information may also be of various types.
- the P-GW may formulate small packet indication information according to the PCC rules issued by the PCRF.
- the PCC rule includes a packet filter corresponding to the small data packet and the small packet indication information, and the P-GW determines the data packet according to the P-GW.
- the filter is a small packet filter that sets the small packet indication information for its extension; or, the P-GW itself has predetermined which type of packet filter is a small packet filter, and it can Set a small packet indication for the filter.
- the MTC-IWF receives a packet filter for small packets from the MTC Server.
- the gateway can accurately know whether a certain data packet is a small data packet, for example, when the P-GW described above is based on a predetermined type of packet filter, which is a filter of a small data packet.
- a packet sent to an IP address including a IP quintuple in the packet filter, such as a source IP address, a destination IP address, etc.
- the P-GW will Looking at the packet filter, if the destination IP address is the IP address, the P-GW can determine that this is a packet filter of the small packet, and set a small packet indication information for it.
- the devices such as PCRF and MTC Server are also filters that can accurately know whether a packet filter is a small packet, and are set to indicate that this is small when sent to the P-GW or MTC-IWF packet filter.
- the identifier of the packet filter of the packet so that the P-GW or MTC-IWF can also be accurately obtained. Know the packet filter of small packets.
- the gateway sends the small data packet indication information to the data transmission device, so that the data transmission device uses the control plane transmission according to the small data packet indication information when determining that the data packet to be sent is a small data packet.
- the small packet is transmitted in a manner.
- the gateway sends the small packet indication information to the data transmission device, and the gateway may send the message through at least one intermediate device.
- the P-GW passes the S-GW and the MN, and will include the small packet indication information.
- the TFT of the packet filter is sent to the UE.
- the data transmission device determines whether the data packet is a small data packet according to the small data packet indication information sent by the gateway, and if it is determined that the small data packet is transmitted through a control plane, such as a NAS message transmission.
- a control plane such as a NAS message transmission.
- Embodiment 3 In the following, through several specific examples, several feasible methods for transmitting small data packets are described: Embodiment 3
- the small data packet and the ordinary data packet can be transmitted by using the same bearer in the core network.
- FIG. 5 is a schematic diagram of signaling according to still another embodiment of a method for transmitting a small data packet according to the present invention. As shown in FIG. 5, the method may include:
- the PCRF sends a PCC rule to the P-GW.
- the 501 step is an optional step; the PCC rule includes at least one packet filter and a Qos requirement corresponding to the packet filter; and, for a packet filter of a small packet, a PCC rule The small packet indication information corresponding to the small packet packet filter is also included.
- the P-GW formulates a TFT according to a PCC rule.
- the P-GW is used to formulate a TFT, and the TFT includes at least one packet filter.
- the specific content of each packet filter is an IP quintuple, that is, a source IP address, a destination IP address, a source port number, and a destination. Port number, upper protocol number.
- the P-GW expands the data packet filter, and for the small data volume data packet, a small data packet indication information is extended in the data packet filter, indicating that the data conforming to the data packet filter is small. data pack.
- the criterion for the P-GW to formulate the TFT is to use the same data flow with the same QoS requirements.
- a bearer transmits, that is, a packet filter with the same QoS requirements is placed in the same TFT. Therefore, the P-GW can put the packet filters with QoS requirements into the same TFT according to the Qos requirements included in the PCC rules it receives. Meanwhile, if the packet filter in the PCC rule has small packet indication information, it indicates that the packet filter is a filter of a small packet, and the P-GW accordingly sets the packet filter placed in the TFT. Small packet indication information, which can be used by the UE to determine small packets accordingly.
- the P-GW in the embodiment may be configured according to the PCC rule, and may be further configured according to a local configuration policy, where the local configuration policy is used by the P-GW according to the
- the small data packet indicates information.
- the data packet whose destination IP address is the A address is pre-configured in the P-GW, and is determined to be a small data packet, that is, the destination IP address in the packet filter of the IP quintuple is the A-address. , which indicates that this is a packet filter for small packets.
- the P-GW sets the packet filter of the small data packet to the small packet indication information.
- the P-GW sends a new or modified bearer signaling request to the S-GW, and carries the TFT in the request.
- the P-GW sends a new or modified bearer signaling to the S-GW when the P-GW decides to create or modify a bearer.
- Request (Creat/Modify bearer), and carry the TFT defined in 502 in the request.
- the S-GW sends a new or modified bearer signaling request that carries the TFT to the MME.
- the device sends a new or modified bearer signaling request that carries the TFT to the UE.
- the P-GW sends the TFTs it has formulated in 502 to the UE through the S-GW and the ⁇ E, as described above, the TFT includes a packet filter having the same QoS requirement, and, for small packets Packet filter, which also has small packet indication information.
- the P-GW sends the small packet indication information to the UE.
- the UE determines, according to the small packet indication information in the TFT, whether the data packet to be sent is a small data packet.
- the uplink data packet may be referred to as a data packet to be sent; the UE uses the received TFT to determine; specifically, the UE searches for a data packet in the TFT corresponding to the data packet to be sent.
- the filter if the packet filter corresponding to the to-be-sent packet carries the small packet indication information, the UE may determine that the to-be-sent packet is a small packet, and the UE continues to perform 507.
- the UE searches for a packet filter in the TFT corresponding to the data packet to be sent, and the packet filter corresponding to the to-be-sent packet does not carry the small packet indication information,
- the data packet to be sent is not a small data packet, and the UE will send it through the normal bearer mode.
- the UE sends the small data packet to the MN through the NAS message.
- the UE sends a NAS message to the ⁇ E, directly carries the small data packet in the NAS message, and transmits the determined bearer ID to the ⁇ E in the NAS together with the small data packet; wherein the bearer ID is The identifier of the bearer needs to be newly created or modified as indicated by the newly created or modified bearer request received by the UE.
- the MME sends the small data packet to the SGW by using a control plane GTP-C message or a GTP-U data plane bearer.
- the MME sends the received small data packet and the bearer ID to the S_GW.
- the S-GW transmits the small data packet to the P-GW.
- the S-GW may transmit the small data packet to the P_GW by using the bearer corresponding to the bearer ID.
- the PGW routes the small data packet (IP rout ing) to the MTC server.
- FIG. 6 is a schematic diagram of signaling of a method for transmitting a small data packet according to another embodiment of the present invention. As shown in FIG. 6, the method may include:
- the PCRF sends a PCC rule to the P-GW.
- the 601 step is an optional step; the P-GW receives one or more PCC rules from the PCRF, and includes a packet filter for each PCC rule, and a packet filter for the small packet, in the PCC rule. It also includes small packet indication information corresponding to the small packet packet filter.
- the P-GW formulates a TFT according to a PCC rule.
- the P-GW is used to formulate a TFT, and the TFT includes at least one packet filter.
- the specific content of each packet filter is an IP quintuple, that is, a source IP address, a destination IP address, a source port number, and a destination. Port number, upper protocol number.
- the P-GW formulates the TFT according to the principle that the data stream of the small data packet is transmitted by using the same bearer, that is, the data packet filter of the small data packet is placed in the same TFT. Therefore, the P-GW can put the packet filter with the small packet indication information into the same TFT according to the small packet indication information corresponding to the packet filter included in the received PCC rule, that is, the TFT. Only the packet filters corresponding to the small packets are included.
- the P-GW in this embodiment may also be configured according to a local configuration policy. The specific method is similar to that in the third embodiment, and is not described in detail.
- the P-GW sends a new or modified bearer signaling request to the S-GW, and the traffic filtering template TFT and the small data packet indication information are carried in the request, where the small data packet indication information is used to indicate the corresponding TFT
- the bearer is a bearer dedicated to transmitting small data packets
- the P-GW When the P-GW decides to create or modify a bearer, it sends a new or modified bearer request request (Creat/Modify bearer) to the S-GW, and carries the TFT defined in 602 in the request.
- the P-GW further carries the small data packet indication information in the newly created or modified bearer request, and indicates that the newly created or modified bearer is specifically used for transmitting the bearer of the small data packet, that is, the TFT.
- the corresponding bearer is a bearer dedicated to transmitting small data packets.
- the S-GW sends a new or modified bearer signaling request that carries the TFT and the small packet indication information to the MME.
- the E sends a new or modified bearer signaling request that carries the TFT and the small packet indication information to the UE.
- the P-GW sends the TFTs that it has formulated in 602 to the UE through the S-GW and the ⁇ E, and also sends the small packet indication information for indicating the special bearer to the UE.
- the TFT packet includes only the packet filter of the small data packet, and the P-GW also sends the small packet indication information to the UE, indicating that the bearer corresponding to the TFT is dedicated to transmitting the bearer of the small data packet. .
- the UE determines whether the data packet to be sent is a small data packet.
- the uplink data packet may be referred to as a data packet to be sent; the UE uses the received TFT to determine; specifically, the UE searches for a data packet in the TFT corresponding to the data packet to be sent. Filtering, and checking whether the bearer corresponding to the TFT where the packet filter is located is a bearer dedicated to transmitting small data packets, and if yes, the UE continues to execute 607.
- the UE searches for a packet filter in the TFT corresponding to the data packet to be sent, and the bearer corresponding to the TFT where the packet filter is located is not specifically used for transmitting the bearer of the small data packet, and the UE will pass The normal bearer mode can be sent.
- the UE sends the small data packet to the ⁇ E through the NAS message.
- the UE sends the NAS message to the ⁇ E, and directly carries the small data packet in the NAS message for transmission.
- the UE simultaneously carries the bearer ID and the data packet. Transmitted to ⁇ E in the NAS; wherein the bearer ID is received by the UE Create or modify the identity of the bearer that needs to be created or modified as indicated in the bearer request.
- the MME sends the small data packet to the SGW through the control plane GTP-C message or the GTP-U data plane bearer.
- the MME sends the received small data packet and the bearer ID to the S_GW.
- the S-GW transmits the small data packet to the P-GW.
- the S-GW may transmit the small data packet to the P_GW by using the bearer corresponding to the bearer ID.
- the PGW routes the small data packet (IP rout ing) to the MTC server.
- FIG. 7 is a schematic diagram of signaling according to still another embodiment of a method for transmitting a small data packet according to the present invention. As shown in FIG. 7, the method may include:
- the MTC Server sends the packet filter of the small data packet to the MTC-IWF.
- each packet filter may be a quintuple, that is, a source IP address, a destination IP address, a source port number, a destination port number, and an upper protocol number.
- the small packet indication information may be set to the data packet filter, where the small data packet indication information includes: a small data volume identifier extended in the data packet filter, or a small data packet data packet The filter name corresponding to the filter.
- the filter name is a name different from the filter name of the normal data packet, and enables the UE to identify, according to the filter name, whether the corresponding data packet is a normal data packet or a small data packet.
- the small data packet indication information of other embodiments may also be a small data volume identifier that is extended in the data packet filter or a filter corresponding to the small data packet data packet, as described above. name.
- the MTC-IWF sends the received small packet data packet filter to the ⁇ E;
- the MTC-IWF may adjust the packet filter received from the MTC server according to the operator policy; for example, adding, modifying, and aggregating the packet filter according to the carrier policy. , refused to wait for authorization operations.
- ⁇ E sends a small data packet filter to the UE
- the UE determines, according to the received filter, that the data packet to be sent is a small data packet.
- the data packet filter of the small data packet received by the UE may be identified by a filter name or a small data volume. a packet filter indicating that this is a small packet, then the The filter name or small data volume identifier is equivalent to the small packet indication information.
- the UE searches for a filter corresponding to the data packet, and if the filter has the small data packet indication information, continues to execute 705; otherwise, according to the normal bearer The mode can be transmitted.
- the UE transmits the small data packet to the ⁇ E through the NAS message.
- ⁇ E sends the small data packet to the MTC-IWF;
- the MTC-IWF sends the small data packet to the MTC Server.
- the gateway is a packet data network gateway P-GW
- the data transmission device is a service gateway.
- the S-GW sends the small data packet to the mobility management entity by using the control plane transmission mode.
- the S-GW sends the small data packet to the downlink data notification message (Downl ink Data Notificate).
- FIG. 8 is a schematic diagram of another embodiment of a method for transmitting a small data packet according to the present invention. As shown in FIG. 8, the method may include:
- the P-GW sends a downlink data packet to the S-GW, and sets a small data packet identifier.
- the small packet indication information is added to the GTP-U header of the data packet, indicating that this is a small data packet.
- the S-GW determines the small data packet according to the small data packet indication information.
- the S-GW After receiving the data packet, the S-GW determines that the received small packet is based on the small packet indication information set in the GTP-U header, and continues to execute 803.
- the S-GW sends the small data packet in the downlink data notification message of the control plane signaling to the ⁇ E;
- the S-GW transmits the downlink data notification message, and the small data packet is more accurate and avoids.
- the MME signaling burden is increased due to misclassification of the packet type.
- ⁇ E transmits the small data packet to the UE by using the NAS message
- the small data packet obtained from the downlink data notification message is directly carried in the NAS message and sent to the UE.
- FIG. 9 is a schematic structural diagram of an embodiment of a data transmission device according to the present invention, where the device can perform the present disclosure
- the device may include: a receiving unit 91, a processing unit 92, and a transmitting unit 93;
- the receiving unit 91 is configured to receive small packet indication information sent by the gateway.
- the processing unit 92 is configured to determine, according to the small data packet indication information received by the receiving unit, whether the data packet to be sent is a small data packet;
- the transmitting unit 93 is configured to: when the processing unit determines that the data packet to be sent is a small data packet, transmit the small data packet by using a control plane transmission manner.
- the data transmission device is a user equipment UE; the transmission unit 93 is specifically configured to send the small data packet to the mobility management entity by using a non-access stratum NAS message.
- the receiving unit 91 is configured to receive a traffic filtering template TFT sent by the packet data network gateway P-GW, where the TFT includes a packet filter corresponding to the small data packet, and the data packet filter is configured. There are small packet indications;
- the processing unit 92 is specifically configured to search for a data packet filter corresponding to the data packet to be sent, and if the data packet filter is configured with the small data packet indication information, determine that the data packet to be sent is small. data pack.
- the receiving unit 91 is configured to receive, by the P-GW, a traffic filtering template TFT and a small packet indication information, where the TFT includes only a packet filter corresponding to the small data packet, and the small data
- the packet indication information is used to indicate that the bearer corresponding to the TFT is a bearer dedicated to transmitting a small data packet;
- the processing unit 92 is specifically configured to search for a data packet filter corresponding to the data packet to be sent, and check whether the bearer corresponding to the TFT where the data packet filter is located is a bearer dedicated to transmitting small data packets, and if yes It is determined that the data packet to be sent is a small data packet.
- the receiving unit 91 is specifically used for a packet filter of a small data packet sent by the receiver type communication service interaction function entity MTC-IWF, and the data packet filter has small packet indication information;
- the processing unit 92 is specifically configured to search for a data packet filter corresponding to the data packet to be sent, and if the data packet filter has the small data packet indication information, determine that the data packet to be sent is small data. package.
- the small data packet indication information received by the receiving unit 91 includes: a small data volume identifier extended in the data packet filter, or corresponding to the small data packet data packet filter. Filter name.
- the data transmission device is a serving gateway S-GW; the transmission unit 93 is specifically configured to send the small data packet to the mobility management entity by using a downlink data notification message.
- the receiving unit 91 is specifically configured to receive a data packet to be sent transmitted by the P-GW, where the packet header of the data packet is provided with small data packet indication information;
- the processing unit 92 is specifically configured to determine, according to the small data packet indication information, that the data packet to be sent is a small data packet.
- FIG. 10 is a schematic structural diagram of an embodiment of a gateway according to the present invention.
- the gateway may perform the method of any embodiment of the present invention.
- the gateway may include: a unit 1001 and a sending unit 1002;
- a unit 1001 configured to formulate small packet indication information
- the sending unit 1002 is configured to send the small data packet indication information to the data transmission device, so that the data transmission device uses, according to the small data packet indication information, when determining that the data packet to be sent is a small data packet,
- the control plane transmission mode transmits the small data packet.
- the gateway is a packet data network gateway P-GW, and the data transmission device is a user equipment UE.
- the determining unit 1001 is specifically configured to include a packet filter corresponding to the small data packet in the traffic filtering template TFT, and set small packet indication information for the data packet filter.
- the determining unit 1001 is configured to: put the packet filter of the small data packet in the same traffic filtering template TFT, and set small packet indication information, where the small data packet indication information is used to indicate
- the bearer corresponding to the TFT is a bearer dedicated to transmitting small data packets.
- the sending unit 1002 is configured to carry the traffic filtering template TFT and the small data packet indication information in the newly created or modified bearer signaling request message.
- the determining unit 1001 is further configured to: before the small packet indication information is set, receive a PCC rule sent by the PCRF, where the PCC rule includes a packet filter corresponding to the small data packet, and the data packet filtering Corresponding small packet indication information, the small data packet indication information is used by the P-GW to formulate the small data packet indication information according to the same; or, the P-GW acquires a local configuration policy, and the local configuration The policy is used by the P-GW to formulate the small packet indication information accordingly.
- the gateway is a machine type communication service interaction function entity MTC-IWF
- the data transmission device is a user equipment UE.
- the determining unit 1001 is specifically configured to obtain a packet filter corresponding to the small data packet, where the data packet filter has small data packet indication information, and the small data packet indication information includes: The small data volume identifier that is extended in the filter, or the filter name that corresponds to the small packet packet filter.
- formulating unit 1001 is further configured to adjust the packet filter according to an operator policy.
- the gateway is a packet data network gateway P-GW, and the data transmission device is a service gateway S-GW.
- the determining unit 1001 is specifically configured to set small packet indication information in a header of a small data packet sent to the S-GW.
- the aforementioned program can be stored in a computer readable storage medium.
- the program when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as ROM, RAM, disk or optical disk.
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Abstract
本发明提供一种传输小数据包的方法和设备,其中方法包括:数据传输设备接收网关发送的小数据包指示信息;若所述数据传输设备根据所述小数据包指示信息确定待发送的数据包是小数据包,则所述数据传输设备采用控制面传输方式传输所述小数据包。本发明能够保证数据传输设备对小数据包判断的准确,避免出现判断失误造成的网络信令增加,从而减轻了网络负担。
Description
传输小数据包的方法和设备
技术领域 本发明涉及通信技术, 尤其涉及一种传输小数据包的方法和设备。
背景技术
现有技术中, 终端通过移动通信网络与应用服务器相连, 通过与应用服 务器交互来执行某个应用比如远程监控、 移动支付等; 该移动通信网络的架 构,例如是终端通过演进型基站 eNodeB接入到核心网的移动管理实体, 再经 移动管理实体连接到服务网关, 并经过服务网关连接到分组数据网络网关, 最后由分组数据网络网关连接到应用服务器。 或者也可以是, 终端连接到移 动管理实体, 移动管理实体连接到业务交互功能实体, 再由业务交互功能实 体连接到应用服务器。
不论是何种架构的移动通信网络, 终端上行的数据包有可能是小数据量 的数据包, 仅仅几个字节的数据量, 称为小数据包。 终端可以将其携带在非 接入层 (Non Access Stratum, 简称: NAS ) 消息中发送给移动管理实体, 而 不需要再通过建立承载来传输。但是当前小数据包的判定是终端自身完成的, 对于一些恶意终端, 其可能将本来应该通过普通承载发送的大数据包, 也直 接通过 NAS消息传输, 或者将大数据包拆分成多个小数据包通过 NAS消息发 送给移动管理实体, 从而造成移动管理实体的信令拥塞, 网络负担较重。
还有一些情况也会导致网络信令拥塞以及网络负担加重, 比如, 在下行 数据传输中, 服务网关有可能因为网络传输的因素, 对数据包的类型造成了 误判, 本来不是小数据包也判定为小数据包, 通过控制面传输方式例如 NAS 消息传输小数据包, 比如通过下行数据通知消息传输; 等后续发现不是小数 据包时还得重新建立承载传输, 这也加重了网络信令负担。 发明内容 本发明提供一种传输小数据包的方法和设备, 目的是保证小数据包判断 的准确性, 减轻网络负担。
第一方面, 提供一种传输小数据包的方法, 包括:
数据传输设备接收网关发送的小数据包指示信息;
若所述数据传输设备根据所述小数据包指示信息确定待发送的数据包是 小数据包, 则所述数据传输设备采用控制面传输方式传输所述小数据包。
结合第一方面, 在第一种可能的实现方式中, 所述数据传输设备是用户 设备 UE; 所述采用控制面传输方式传输所述小数据包, 具体为: 所述 UE通 过非接入层 NAS消息将所述小数据包发送给移动管理实体。
结合第一方面的第一种可能的实现方式, 在第二种可能的实现方式中, 所述数据传输设备接收网关发送的小数据包指示信息, 包括: 所述 UE接收分 组数据网络网关 P-GW发送的流量过滤模板 TFT, 所述 TFT中包括小数据包对 应的数据包过滤器, 所述数据包过滤器设置有小数据包指示信息; 所述数据 传输设备根据所述小数据包指示信息确定待发送的数据包是小数据包,包括: 所述 UE查找待发送的数据包对应的数据包过滤器,若所述数据包过滤器设置 有所述小数据包指示信息, 则确定所述待发送的数据包是小数据包。
结合第一方面的第一种可能的实现方式, 在第三种可能的实现方式中, 所述数据传输设备接收网关发送的小数据包指示信息, 包括: 所述 UE接收 P-GW发送的流量过滤模板 TFT和小数据包指示信息, 所述 TFT中仅包括小数 据包对应的数据包过滤器, 所述小数据包指示信息用于指示所述 TFT对应的 承载是专门用于传输小数据包的承载; 所述数据传输设备根据所述小数据包 指示信息确定待发送的数据包是小数据包, 包括: 所述 UE查找待发送的数据 包对应的数据包过滤器, 并查看所述数据包过滤器所在的 TFT对应的承载是 否是专门用于传输小数据包的承载, 若是则确定所述待发送的数据包是小数 据包。
结合第一方面的第一种可能的实现方式, 在第四种可能的实现方式中, 所述数据传输设备接收网关发送的小数据包指示信息, 包括: 所述 UE接收机 器类型通讯业务交互功能实体 MTC-IWF发送的小数据包的数据包过滤器, 所 述数据包过滤器具有小数据包指示信息; 所述数据传输设备根据所述小数据 包指示信息确定待发送的数据包是小数据包, 包括: 所述 UE查找待发送的数 据包对应的数据包过滤器,若所述数据包过滤器具有所述小数据包指示信息, 则确定所述待发送的数据包是小数据包。
结合第一方面的第二种可能的实现方式至第四种可能的实现方式中的任 一种, 在第五种可能的实现方式中, 所述小数据包指示信息, 包括: 在数据 包过滤器中扩展的小数据量标识、 或者与小数据包的数据包过滤器对应的过 滤器名称。
结合第一方面, 在第六种可能的实现方式中, 所述数据传输设备是服务 网关 S-GW; 所述采用控制面传输方式传输所述小数据包, 具体为: 所述 S-GW 通过下行数据通知消息将所述小数据包发送给移动管理实体。
结合第一方面的第六种可能的实现方式, 在第七种可能的实现方式中, 所述数据传输设备接收网关发送的小数据包指示信息, 包括: 所述 S-GW接收 P-GW传输的待发送的数据包, 所述数据包的 GTP-U包头中设置有小数据包指 示信息; 所述数据传输设备根据所述小数据包指示信息确定待发送的数据包 是小数据包, 包括: 所述 S-GW根据所述小数据包指示信息, 确定所述待发送 的数据包是小数据包。
第二方面, 提供一种传输小数据包的方法, 包括:
网关制定小数据包指示信息;
所述网关将所述小数据包指示信息发送至数据传输设备, 以使得所述数 据传输设备根据所述小数据包指示信息, 在确定待发送的数据包是小数据包 时, 采用控制面传输方式传输所述小数据包。
结合第二方面, 在第一种可能的实现方式中, 所述网关是分组数据网络 网关 P-GW, 所述数据传输设备是用户设备 UE。
结合第二方面的第一种可能的实现方式, 在第二种可能的实现方式中, 所述网关制定小数据包指示信息, 包括: 所述 P-GW在流量过滤模板 TFT中包 括小数据包对应的数据包过滤器, 并为所述数据包过滤器设置小数据包指示 ^ I Ft自Θ、。
结合第二方面的第一种可能的实现方式, 在第三种可能的实现方式中, 所述网关制定小数据包指示信息, 包括: 所述 P-GW将小数据包的数据包过滤 器放在同一个流量过滤模板 TFT中, 并设置小数据包指示信息, 所述小数据 包指示信息用于指示所述 TFT对应的承载是专门用于传输小数据包的承载。
结合第二方面的第三种可能的实现方式, 在第四种可能的实现方式中, 所述网关将所述小数据包指示信息发送至数据传输设备, 包括: 所述 P-GW在
新建或修改承载信令请求消息中携带所述流量过滤模板 TFT和小数据包指示 ^ I Ft自Θ、。
结合第二方面的第二种可能的实现方式至第四种可能的实现方式中的任 一种, 在第五种可能的实现方式中, 所述网关制定小数据包指示信息之前, 还包括: 所述 P-GW接收 PCRF发送的 PCC规则, 所述 PCC规则中包括小数据 包对应的数据包过滤器以及所述数据包过滤器对应的小数据包指示信息, 所 述小数据包指示信息用于所述 P-GW据此制定所述小数据包指示信息; 或者, 所述 P-GW获取本地配置策略, 所述本地配置策略用于所述 P-GW据此制定所 述小数据包指示信息。
结合第二方面, 在第六种可能的实现方式中, 所述网关是机器类型通讯 业务交互功能实体 MTC-IWF, 所述数据传输设备是用户设备 UE。
结合第二方面的第六种可能的实现方式, 在第七种可能的实现方式中, 所述网关制定小数据包指示信息, 包括: 所述 MTC-IWF获取小数据包对应的 数据包过滤器, 所述数据包过滤器具有小数据包指示信息; 所述小数据包指 示信息, 包括: 在数据包过滤器中扩展的小数据量标识、 或者与小数据包数 据包过滤器对应的过滤器名称。
结合第二方面的第七种可能的实现方式, 在第八种可能的实现方式中, 还包括: 所述 MTC-IWF根据运营商策略对所述数据包过滤器进行调整。
结合第二方面, 在第九种可能的实现方式中, 所述网关是分组数据网络 网关 P-GW, 所述数据传输设备是服务网关 S_GW。
结合第二方面的第九种可能的实现方式, 在第十种可能的实现方式中, 所述网关制定小数据包指示信息, 包括: 所述 P-GW在发送给 S-GW的小数据 包的 GTP-U包头中设置小数据包指示信息。
第三方面, 提供一种数据传输设备, 包括:
接收单元, 用于接收网关发送的小数据包指示信息;
处理单元, 用于根据所述接收单元接收的所述小数据包指示信息, 确定 待发送的数据包是否是小数据包;
传输单元, 用于在所述处理单元确定待发送的数据包是小数据包时, 采 用控制面传输方式传输所述小数据包。
结合第三方面, 在第一种可能的实现方式中, 所述数据传输设备是用户
设备 UE; 所述传输单元, 具体用于通过非接入层 NAS消息将所述小数据包发 送给移动管理实体。
结合第三方面的第一种可能的实现方式, 在第二种可能的实现方式中, 所述接收单元, 具体用于接收分组数据网络网关 P-GW发送的流量过滤模板 TFT , 所述 TFT中包括小数据包对应的数据包过滤器, 所述数据包过滤器设置 有小数据包指示信息; 所述处理单元, 具体用于查找待发送的数据包对应的 数据包过滤器, 若所述数据包过滤器设置有所述小数据包指示信息, 则确定 所述待发送的数据包是小数据包。
结合第三方面的第一种可能的实现方式, 在第三种可能的实现方式中, 所述接收单元,具体用于接收 P-GW发送的流量过滤模板 TFT和小数据包指示 信息, 所述 TFT中仅包括小数据包对应的数据包过滤器, 所述小数据包指示 信息用于指示所述 TFT对应的承载是专门用于传输小数据包的承载; 所述处 理单元, 具体用于查找待发送的数据包对应的数据包过滤器, 并查看所述数 据包过滤器所在的 TFT对应的承载是否是专门用于传输小数据包的承载, 若 是则确定所述待发送的数据包是小数据包。
结合第三方面的第一种可能的实现方式, 在第四种可能的实现方式中, 所述接收单元, 具体用于接收机器类型通讯业务交互功能实体 MTC-IWF发送 的小数据包的数据包过滤器, 所述数据包过滤器具有小数据包指示信息; 所 述处理单元, 具体用于查找待发送的数据包对应的数据包过滤器, 若所述数 据包过滤器具有所述小数据包指示信息, 则确定所述待发送的数据包是小数 据包。
结合第三方面的第二种可能的实现方式至第四种可能的实现方式中的任 一种, 在第五种可能的实现方式中, 所述接收单元接收的所述小数据包指示 信息, 包括: 在数据包过滤器中扩展的小数据量标识、 或者与小数据包数据 包过滤器对应的过滤器名称。
结合第三方面, 在第六种可能的实现方式中, 所述数据传输设备是服务 网关 S-GW; 所述传输单元, 具体用于通过下行数据通知消息将所述小数据包 发送给移动管理实体。
结合第三方面的第六种可能的实现方式, 在第七种可能的实现方式中, 所述接收单元, 具体用于接收 P-GW传输的待发送的数据包, 所述数据包的包
头中设置有小数据包指示信息; 所述处理单元, 具体用于根据所述小数据包 指示信息, 确定所述待发送的数据包是小数据包。
第四方面, 提供一种网关, 包括:
制定单元, 用于制定小数据包指示信息;
发送单元, 用于将所述小数据包指示信息发送至数据传输设备, 以使得 所述数据传输设备根据所述小数据包指示信息, 在确定待发送的数据包是小 数据包时, 采用控制面传输方式传输所述小数据包。
结合第四方面, 在第一种可能的实现方式中, 所述网关是分组数据网络 网关 P-GW, 所述数据传输设备是用户设备 UE。
结合第四方面的第一种可能的实现方式, 在第二种可能的实现方式中, 所述制定单元, 具体用于在流量过滤模板 TFT中包括小数据包对应的数据包 过滤器, 并为所述数据包过滤器设置小数据包指示信息。
结合第四方面的第一种可能的实现方式, 在第三种可能的实现方式中, 所述制定单元, 具体用于将小数据包的数据包过滤器放在同一个流量过滤模 板 TFT中, 并设置小数据包指示信息, 所述小数据包指示信息用于指示所述 TFT对应的承载是专门用于传输小数据包的承载。
结合第四方面的第三种可能的实现方式, 在第四种可能的实现方式中, 所述发送单元, 具体用于在新建或修改承载信令请求消息中携带所述流量过 滤模板 TFT和小数据包指示信息。
结合第四方面的第二种可能的实现方式至第四种可能的实现方式中的任 一种, 在第五种可能的实现方式中, 所述制定单元, 还用于在制定小数据包 指示信息之前, 接收 PCRF发送的 PCC规则, 所述 PCC规则中包括小数据包对 应的数据包过滤器以及所述数据包过滤器对应的小数据包指示信息, 所述小 数据包指示信息用于所述 P-GW据此制定所述小数据包指示信息; 或者, 所述 P-GW获取本地配置策略, 所述本地配置策略用于所述 P-GW据此制定所述小 数据包指示信息。
结合第四方面, 在第六种可能的实现方式中, 所述网关是机器类型通讯 业务交互功能实体 MTC-IWF, 所述数据传输设备是用户设备 UE。
结合第四方面的第六种可能的实现方式, 在第七种可能的实现方式中, 所述制定单元, 具体用于获取小数据包对应的数据包过滤器, 所述数据包过
滤器具有小数据包指示信息; 所述小数据包指示信息, 包括: 在数据包过滤 器中扩展的小数据量标识、或者与小数据包数据包过滤器对应的过滤器名称。
结合第四方面的第七种可能的实现方式, 在第八种可能的实现方式中, 所述制定单元, 还用于根据运营商策略对所述数据包过滤器进行调整。
结合第四方面, 在第九种可能的实现方式中, 所述网关是分组数据网络 网关 P-GW, 所述数据传输设备是服务网关 S-GW。
结合第四方面的第九种可能的实现方式, 在第十种可能的实现方式中, 所述制定单元,具体用于在发送给 S-GW的小数据包的包头中设置小数据包指 示信息。
本发明提供的传输小数据包的方法和设备的技术效果是: 数据传输设备 通过根据网关发送的小数据包指示信息来进行小数据包的判定, 使得小数据 包的判定是在网络控制下进行的, 网关是能够准确知道某个数据包是不是小 数据包的, 而不是由数据传输设备自己判定, 这样就能够保证数据传输设备 对小数据包判断的准确, 避免出现判断失误造成的网络信令增加, 从而减轻 了网络负担。 附图说明
图 1为本发明传输小数据包的方法实施例的网络架构图一;
图 2为本发明传输小数据包的方法实施例的网络架构图二;
图 3为本发明传输小数据包的方法一实施例的流程示意图;
图 4为本发明传输小数据包的方法另一实施例的流程示意图;
图 5为本发明传输小数据包的方法又一实施例的信令示意图;
图 6为本发明传输小数据包的方法又一实施例的信令示意图;
图 7为本发明传输小数据包的方法又一实施例的信令示意图;
图 8为本发明传输小数据包的方法又一实施例的信令示意图;
图 9为本发明数据传输设备实施例的结构示意图;
图 10为本发明网关实施例的结构示意图。
具体实施方式
本发明实施例提供了一种传输小数据包的方法, 所述的小数据包指的是
小数据量的数据包, 例如是仅仅几个字节数据量的信息; 该方法可以用于用 户设备 (User Equipment , 简称: UE) 终端发起 MO (Mobi le Originate ) 及 终端接收 MT (Mobi le Terminated) 小数据包的场景下。 本发明实施例的方 法, 例如可以应用于机器类型通讯 (Machine Type Communications , 简称: MTC ) , 比如用户设备通过移动管理实体(Mobi le Management Entity, 简称: 匪 E) 向对端传输小数据包, 或者对端通过服务网关 (Serving Gateway, 简 称: S-GW) 向 MME传输小数据包, 由匪 E发送给用户设备等。 本发明实施例 的方法也适应于 MTC之外的普通通讯场景; 并且, 本发明实施例的方法适用 于多种网络, 例如长期演进 (Long Time Evolve, 简称: LTE) 网络, 通用移 云力通讯系统 (Universal Mobi le Telecommunications System, 简称: UMTS ) 网络, 全球移动通信系统 (Global System for Mobi le communication, 简 称: GSM) 网络等, 在 UMTS网络中, MME可以用 GPRS服务支持节点(Serving GPRS support node , 简称: SGSN, 也可以称为移动管理实体) 代替; 在 GSM 网络中, MME可以用移动交换中心 (Mobi le Switching Center, 简称: MSC) 代替。
在下面的实施例中, 以 LTE系统中传输小数据包的方法为例进行说明, 但是可以理解的是, 本发明的方法还适用于其他系统或者其他场景, 比如上 面所描述的各种网络场景。 首先, 提供该方法应用的系统架构, 如图 1所示, 图 1为本发明传输小数据包的方法实施例的网络架构图一。 UE通过 eNodeB 接入到核心网的匪 E/ S-GW, 并经过 S-GW连接到 P-GW。 或者, 也可以参见图 2, 图 2为本发明传输小数据包的方法实施例的网络架构图二。为了使应用服 务平台 MTC server能够通过移动通信网络向 UE发送小数据包, 设置业务交 互功能实体 MTC-IWF, 对于上行小数据包, UE将小数据包发送给匪 E, 再由 匪 E将收到的小数据包携带在控制面消息中发送给 MTC-IWF, MTC-IWF携带在 控制面信令中发送给 MTC servero 图 2中还示出了图 1中所述的传输路径, 即 UE与 MTC server之间的小数据包交互仍使用 IP数据承载, UE将小数据 包发送给匪 E, 匪 E将收到的小数据包通过 GTP-C控制面或者 GTP-U用户面发 送给 S-GW,再由 S-GW通过相应数据承载发给 P-GW, P-GW再将小数据包 IP路 由到 MTC server。
以图 1和图 2的架构为例, 对本发明的传输小数据包的方法进行说明:
实施例一
图 3为本发明传输小数据包的方法一实施例的流程示意图, 本实施例的 方法可以是数据传输设备执行; 如图 3所示, 该方法可以包括:
301、 数据传输设备接收网关发送的小数据包指示信息;
其中, 所述的数据传输设备例如是 UE或者 S-GW等, 这些设备可以向移 动管理实体传输小数据包, 所以可以将其称为数据传输设备。 所述的网关例 如是 P-GW或者 MTC-IWF等,这些设备可以生成小数据包指示信息发送给数据 传输设备, 以使得数据传输设备据此判定数据包是否是小数据包。
所述的小数据包指示信息的形式也可以有多种, 例如, 该指示信息可以 是在数据包对应的数据包过滤器中扩展设置小数据包指示信息, 如果数据传 输设备查找数据包对应的数据包过滤器, 该数据包过滤器具有小数据包指示 信息, 则可以确定数据包是小数据包。 或者, 该指示信息也可以是用于指示 数据包过滤器所在的流量过滤模板 (traffic filter template, 简称: TFT) 对应的承载是专门用于传输小数据包的承载, 也可以确定该数据包是小数据 包。 或者, 该指示信息也可以是某个特定的过滤器名称, 如果数据传输设备 查找数据包对应的数据包过滤器, 该过滤器具有该特定的过滤器名称, 就可 以据此确定数据包是小数据包。或者, 该指示信息也可以是 P-GW在数据包的 GTP-U包头中增加的小数据包指示信息。 当然具体实施中, 小数据包指示信 息也可以设置为其他形式, 本发明实施例不做限制, 只要能据此确定数据包 是小数据包即可。
302、若所述数据传输设备根据所述小数据包指示信息确定待发送的数据 包是小数据包,则所述数据传输设备采用控制面传输方式传输所述小数据包。
本实施例中, 数据传输设备采用控制面传输方式将所述小数据包发送给 移动管理实体 (当然本领域人员可以理解, 该移动管理实体并不是数据包传 输的最终目的设备) , 也可以有多种方式。例如, 控制面传输方式可以是 NAS 消息, UE在确定数据包是小数据包时, 可以将小数据包通过 NAS消息发送给 匪5。 又例如, 控制面传输方式也可以是 S-GW向匪 E发送的下行数据通知消 息 (Downlink Data Notification) 。
本实施例中, 数据传输设备是根据网关发送的小数据包指示信息判定数 据包是否是小数据包的,如果确定是小数据包才通过控制面传输方式例如 NAS
消息传输给移动管理实体; 其中需要说明的是, 小数据包指示信息是网关制 定的, 比如是 P-GW制定并发送给 UE的, 而网关是能够准确知道某个数据包 是否是小数据包的, 比如, P-GW是根据 PCRF下发的 PCC规则来制定小数据 包指示信息, PCC规则中包括小数据包对应的数据包过滤器及其小数据包指 示信息, P-GW据此确定数据包过滤器是小数据包的过滤器, 为其扩展设置小 数据包指示信息; 或者, P-GW本身就已经预先确定了何种类型的数据包过滤 器是小数据包的过滤器, 自己就可以为过滤器设置小数据包指示信息。 因此, 数据传输设备根据网关发送的小数据包指示信息判定数据包是否是小数据 包, 就能够使得小数据包的判定准确, 避免如现有技术那样由数据传输设备 自己判定造成的误判或者恶意传输的情况, 减轻了网络信令负担。
实施例二
图 4为本发明传输小数据包的方法另一实施例的流程示意图, 本实施例 的方法可以是核心网网关执行; 如图 4所示, 该方法可以包括:
401、 网关制定小数据包指示信息;
其中, 所述的网关例如是 P-GW或者 MTC-IWF等, 网关制定小数据包指示 信息的方式也可以有多种类型。 比如, P-GW可以根据 PCRF下发的 PCC规则 来制定小数据包指示信息, PCC规则中包括小数据包对应的数据包过滤器及 其小数据包指示信息, P-GW据此确定数据包过滤器是小数据包的过滤器, 为 其扩展设置小数据包指示信息; 或者, P-GW本身就已经预先确定了何种类型 的数据包过滤器是小数据包的过滤器, 自己就可以为过滤器设置小数据包指 示信息。 或者, MTC-IWF从 MTC Server处接收到小数据包的数据包过滤器。
需要说明的是, 网关是能够准确知道某个数据包是否是小数据包的, 比 如上述的 P-GW在根据预先确定的何种类型的数据包过滤器是小数据包的过 滤器时, 这种情况可能是比如预先规定了发送至某个 IP地址(数据包过滤器 中包括 IP五元组, 如源 IP地址、 目的 IP地址等) 的数据包都是小数据包, 则 P-GW将查看数据包过滤器, 如果其中包括目的 IP地址是所述的 IP地址, P-GW就可以确定这是小数据包的数据包过滤器,为其设置小数据包指示信息。 而 PCRF、 MTC Server这些设备也是能够准确知道某个数据包过滤器是否是小 数据包的过滤器,并在发送给 P-GW或 MTC-IWF数据包过滤器时设置上用于指 示这是小数据包的数据包过滤器的标识,这样 P-GW或 MTC-IWF也能够准确获
知小数据包的数据包过滤器。
402、 网关将所述小数据包指示信息发送至数据传输设备, 以使得所述数 据传输设备根据所述小数据包指示信息, 在确定待发送的数据包是小数据包 时, 采用控制面传输方式传输所述小数据包。
该歩骤中, 网关将小数据包指示信息发送至数据传输设备, 可以是网关 经过至少一个中间设备来发送, 比如, P-GW经过 S-GW和丽 E, 将包含携带小 数据包指示信息的数据包过滤器的 TFT发送给 UE。
本实施例的传输小数据包的方法, 数据传输设备是根据网关发送的小数 据包指示信息判定数据包是否是小数据包的, 如果确定是小数据包才通过控 制面传输方式例如 NAS消息传输给移动管理实体, 能够使得小数据包的判定 准确, 避免如现有技术那样由数据传输设备自己判定造成的误判或者恶意传 输的情况, 减轻了网络信令负担。
下面通过几个具体的例子,对几种可行的传输小数据包的方法进行说明: 实施例三
本实施例中,小数据包和普通数据包在核心网可以使用同一个承载传输,
P-GW使用同一承载传输 QoS要求相同的数据包, 无论该数据包是小数据包还 是普通数据包。图 5为本发明传输小数据包的方法又一实施例的信令示意图, 如图 5所示, 该方法可以包括:
501、 PCRF向 P-GW发送 PCC规则;
其中, 该 501歩骤为可选歩骤; 所述的 PCC规则中包括至少一个数据包 过滤器以及该数据包过滤器对应的 Qos要求; 并且, 对于小数据包的数据包 过滤器, PCC规则中还会包括该小数据包数据包过滤器对应的小数据包指示 信息。
502、 P-GW根据 PCC规则制定 TFT;
其中, P-GW用于制定 TFT, 该 TFT中包括至少一个数据包过滤器, 每个 数据包过滤器的具体内容为 IP五元组, 即源 IP地址、 目的 IP地址, 源端口 号、 目的端口号、 上层协议号。本实施例中, P-GW对数据包过滤器进行扩展, 对于小数据量的数据包, 在其数据包过滤器中扩展一个小数据包指示信息, 表示符合该数据包过滤器的数据为小数据包。
本实施例中, P-GW制定 TFT的准则是, 将 QoS要求相同的数据流使用同
一个承载进行传输, 也就是将相同 QoS要求的数据包过滤器放入同一个 TFT 中。所以, P-GW可以根据其接收到的 PCC规则中包括的 Qos要求,将具有 QoS 要求的数据包过滤器放入同一个 TFT中。 同时, 如果 PCC规则中的数据包过 滤器具有小数据包指示信息, 则表明该数据包过滤器是小数据包的过滤器, P-GW据此为放入 TFT中的该数据包过滤器设置小数据包指示信息, 可以用于 UE据此确定小数据包。
可选的,本实施例的 P-GW在根据 PCC规则制定上述小数据包指示信息之 夕卜, 还可以根据本地配置策略来制定, 所述本地配置策略用于所述 P-GW据此 制定所述小数据包指示信息。 例如, 可以在 P-GW预先配置了, 目的 IP地址 是 A地址的数据包确定是小数据包, 也就是说, IP五元组的数据包过滤器中 的目的 IP地址如果是所述 A地址,则表明这是小数据包的数据包过滤器。 P-GW 根据该预先配置策略, 将小数据包的数据包过滤器设置小数据包指示信息。
503、 P-GW向 S-GW发送新建或修改承载信令请求,并在该请求中携带 TFT; 其中, 当 P-GW决定新建或修改承载时, 向 S-GW发送新建或修改承载信 令请求 (Creat/Modify bearer ) , 并将 502中制定的 TFT携带在该请求中。
504、 S-GW向匪 E发送携带 TFT的新建或修改承载信令请求;
505、 匪 E向 UE发送携带 TFT的新建或修改承载信令请求;
至此, P-GW通过 S-GW和匪 E , 将其在 502中制定的 TFT发送给 UE, 如 上所述的, 该 TFT中包括具有相同 Qos要求的数据包过滤器, 并且, 对于小 数据包的数据包过滤器, 该过滤器还具有小数据包指示信息。 这样, P-GW就 将小数据包指示信息发送给了 UE。
506、 UE根据 TFT中的小数据包指示信息判断待发送的数据包是否是小 数据包;
其中, 当 UE需要发送上行数据包时, 该上行数据包可以称为待发送的数 据包; UE使用接收到的 TFT来判断; 具体的, UE查找待发送的数据包对应的 TFT中的数据包过滤器, 如果该待发送的数据包所对应的数据包过滤器携带 小数据包指示信息, 则 UE可以确定该待发送的数据包是小数据包, 则 UE将 继续执行 507。
如果在本歩骤中, UE查找待发送的数据包对应的 TFT中的数据包过滤器, 该待发送的数据包所对应的数据包过滤器未携带小数据包指示信息, 则表明
该待发送的数据包不是小数据包, UE将通过普通承载方式发送即可。
507、 UE通过 NAS消息将小数据包发送给丽 E;
其中, UE向匪 E发送 NAS消息, 直接将小数据包携带在该 NAS消息中传 输, 并将确定的承载 ID与小数据包一起在 NAS中传输给匪 E; 其中, 所述的 承载 ID是在 UE接收到的新建或修改承载请求所指示的需要新建或者修改承 载的标识。
508、 MME将小数据包通过控制面 GTP-C消息或者 GTP-U数据面承载发送 给 SGW;
其中, 本歩骤中 MME将收到的小数据包与承载 ID—起发送给 S_GW。
509、 S-GW将小数据包传输给 P-GW;
其中, 本歩骤中, S-GW可以通过承载 ID对应的承载将小数据包传输给 P_GW。
510、 PGW将小数据包路由 (IP rout ing ) 给 MTC server。
实施例四
本实施例中, 小数据包在核心网可以使用专门的承载传输, P-GW使用一 个或多个承载专门用于传输小数据包。 图 6为本发明传输小数据包的方法又 一实施例的信令示意图, 如图 6所示, 该方法可以包括:
601、 PCRF向 P-GW发送 PCC规则;
其中, 该 601歩骤是可选歩骤; P-GW从 PCRF接收到一个或多个 PCC规 则, 每个 PCC规则中包括数据包过滤器, 对于小数据包的数据包过滤器, PCC 规则中还会包括该小数据包数据包过滤器对应的小数据包指示信息。
602、 P-GW根据 PCC规则制定 TFT;
其中, P-GW用于制定 TFT, 该 TFT中包括至少一个数据包过滤器, 每个 数据包过滤器的具体内容为 IP五元组, 即源 IP地址、 目的 IP地址, 源端口 号、 目的端口号、 上层协议号。
本实施例中, P-GW制定 TFT的准则是, 将小数据包的数据流使用同一个 承载进行传输, 也就是将小数据包的数据包过滤器放入同一个 TFT中。所以, P-GW可以根据其接收到的 PCC规则中包括的数据包过滤器对应的小数据包指 示信息, 将具有小数据包指示信息的数据包过滤器放入同一个 TFT中, 即该 TFT中仅包括小数据包对应的数据包过滤器。
同样, 本实施例的 P-GW还可以根据本地配置策略来制定上述 TFT, 具体 方法与实施例三中类似, 不再详述。
603、 P-GW向 S-GW发送新建或修改承载信令请求, 并在该请求中携带流 量过滤模板 TFT和小数据包指示信息, 所述小数据包指示信息用于指示所述 TFT对应的承载是专门用于传输小数据包的承载;
其中, 当 P-GW决定新建或修改承载时, 向 S-GW发送新建或修改承载信 令请求 (Creat/Modify bearer) , 并将 602中制定的 TFT携带在该请求中。 本实施例中, P-GW还在所述的新建或修改承载请求中携带小数据包指示信息, 指示新建或者修改的承载是专门用于传输小数据包的承载, 也就是说, 所述 TFT对应的承载是专门用于传输小数据包的承载。
604、 S-GW向匪 E发送携带 TFT和小数据包指示信息的新建或修改承载 信令请求;
605、 匪 E向 UE发送携带 TFT和小数据包指示信息的新建或修改承载信 令请求;
至此, P-GW通过 S-GW和匪 E, 将其在 602中制定的 TFT发送给 UE, 并 且也将用于指示专门承载的小数据包指示信息也发送给 UE。 如上所述的, 该 TFT中仅包括小数据包的数据包过滤器, 并且, P-GW还向 UE发送了小数据包 指示信息, 指示 TFT对应的承载是专门用于传输小数据包的承载。
606、 UE判断待发送的数据包是否是小数据包;
其中, 当 UE需要发送上行数据包时, 该上行数据包可以称为待发送的数 据包; UE使用接收到的 TFT来判断; 具体的, UE查找待发送的数据包对应的 TFT中的数据包过滤器, 并查看所述数据包过滤器所在的 TFT对应的承载是 否是专门用于传输小数据包的承载, 如果是则 UE将继续执行 607。
如果在本歩骤中, UE查找待发送的数据包对应的 TFT中的数据包过滤器, 所述数据包过滤器所在的 TFT对应的承载不是专门用于传输小数据包的承 载, UE将通过普通承载方式发送即可。
607、 UE通过 NAS消息将小数据包发送给匪 E;
其中, UE向匪 E发送 NAS消息, 直接将小数据包携带在该 NAS消息中传 输, 可选的, 如果存在多条专门用于传输小数据包的承载, UE同时将承载 ID 与数据包一起在 NAS中传输给匪 E; 其中, 所述的承载 ID是在 UE接收到的
新建或修改承载请求中所指示的需要新建或者修改承载的标识。
608、 MME将小数据包通过控制面 GTP-C消息或者 GTP-U数据面承载发送 给 SGW;
其中, 本歩骤中 MME将收到的小数据包与承载 ID—起发送给 S_GW。
609、 S-GW将小数据包传输给 P-GW;
其中, 本歩骤中, S-GW可以通过承载 ID对应的承载将小数据包传输给 P_GW。
610、 PGW将小数据包路由 (IP rout ing ) 给 MTC server。
实施例五
本实施例中,小数据包在核心网可以使用控制面经过 MTC-IWF进行传输。 图 7为本发明传输小数据包的方法又一实施例的信令示意图, 如图 7所示, 该方法可以包括:
701、 MTC Server将小数据包的数据包过滤器发送给 MTC-IWF;
其中, 每个数据包过滤器的具体内容, 可以是五元组, 即源 IP地址、 目 的 IP地址、 源端口号、 目的端口号以及上层协议号; 当然也可以为其他任意 可以过滤出数据流的形式。 并且, 本实施例中, 可以对数据包过滤器设置小 数据包指示信息, 所述小数据包指示信息, 包括: 在数据包过滤器中扩展的 小数据量标识、 或者与小数据包数据包过滤器对应的过滤器名称, 该过滤器 名称是与普通数据包的过滤器名称不同的名称,能够使得 UE根据该过滤器名 称识别出对应的数据包是普通数据包还是小数据包。 当然具体实施中, 其他 实施例的小数据包指示信息, 也可以是如上所述的, 设置为在数据包过滤器 中扩展的小数据量标识或者与小数据包数据包过滤器对应的过滤器名称。
702、 MTC-IWF将接收到的小数据包数据包过滤器发送给丽 E;
可选的, 在本歩骤中, MTC-IWF可以对从 MTC Server接收到的数据包过 滤器, 根据运营商策略进行调整; 例如, 对数据包过滤器根据运营商策略进 行添加, 修改, 聚合, 拒绝等授权操作。
703、 匪 E将小数据包数据包过滤器发送给 UE;
704、 UE根据接收到的过滤器确定待发送的数据包是小数据包; 其中, 如上所述的, UE接收到的小数据包的数据包过滤器, 可以通过过 滤器名称或者小数据量标识用于指示这是小数据包的数据包过滤器, 那么该
过滤器名称或者小数据量标识就相当于小数据包指示信息。 UE根据该小数据 包指示信息, 当需要发送上行数据包时, 据此查找数据包对应的过滤器, 如 果该过滤器具有上述的小数据包指示信息, 则继续执行 705 ; 否则, 按照普 通承载方式传输即可。
705、 UE将小数据包通过 NAS消息传输给匪 E;
706、 匪 E将小数据包发送给 MTC-IWF;
707、 MTC-IWF将小数据包发送给 MTC Server。
实施例六
以上的几个实施例都是以上行数据传输为例, 本实施例中, 是以下行数 据传输为例, 在本实施例中的网关是分组数据网络网关 P-GW, 数据传输设备 是服务网关 S-GW; 采用控制面传输方式将小数据包发送给移动管理实体, 在 本实施例具体为: S-GW通过下行数据通知消息(Downl ink Data Not ificat ion ) 将小数据包发送给匪£。 图 8为本发明传输小数据包的方法又一实施例的信 令示意图, 如图 8所示, 该方法可以包括:
801、 P-GW向 S-GW发送下行数据包, 设置小数据量包标识;
其中, P-GW在发送下行数据包时, 在数据包的 GTP-U包头中增加了小数 据包指示信息, 表明这是小数据包。
802、 S-GW根据小数据包指示信息确定小数据包;
其中, S-GW在接收到数据包后, 根据 GTP-U包头中设置的小数据包指示 信息, 判定接收到的是小数据包, 继续执行 803。
803、 S-GW将小数据包携带在控制面信令的下行数据通知消息中发送给 匪 E;
本实施例中, S-GW在根据 GTP-U包头中设置的小数据包指示信息判定接 收到的是小数据包后, 才通过下行数据通知消息传输, 小数据包的判断较为 准确, 避免了对数据包类型误判造成 MME信令负担增加。
804、 匪 E通过 NAS消息将小数据包传输给 UE;
本歩骤中, 匪 E将从下行数据通知消息中获得的小数据包, 直接携带在 NAS消息中发送给 UE。
实施例七
图 9为本发明数据传输设备实施例的结构示意图, 该设备可以执行本发
明任意实施例的方法, 如图 9所示, 该设备可以包括: 接收单元 91、 处理单 元 92和传输单元 93; 其中,
接收单元 91, 用于接收网关发送的小数据包指示信息;
处理单元 92, 用于根据所述接收单元接收的所述小数据包指示信息, 确 定待发送的数据包是否是小数据包;
传输单元 93, 用于在所述处理单元确定待发送的数据包是小数据包时, 采用控制面传输方式传输所述小数据包。
进一歩的, 所述数据传输设备是用户设备 UE; 所述传输单元 93, 具体用 于通过非接入层 NAS消息将所述小数据包发送给移动管理实体。
进一歩的, 所述接收单元 91, 具体用于接收分组数据网络网关 P-GW发 送的流量过滤模板 TFT, 所述 TFT中包括小数据包对应的数据包过滤器, 所 述数据包过滤器设置有小数据包指示信息;
所述处理单元 92, 具体用于查找待发送的数据包对应的数据包过滤器, 若所述数据包过滤器设置有所述小数据包指示信息, 则确定所述待发送的数 据包是小数据包。
进一歩的, 所述接收单元 91, 具体用于接收 P-GW发送的流量过滤模板 TFT和小数据包指示信息, 所述 TFT中仅包括小数据包对应的数据包过滤器, 所述小数据包指示信息用于指示所述 TFT对应的承载是专门用于传输小数据 包的承载;
所述处理单元 92, 具体用于查找待发送的数据包对应的数据包过滤器, 并查看所述数据包过滤器所在的 TFT对应的承载是否是专门用于传输小数据 包的承载, 若是则确定所述待发送的数据包是小数据包。
进一歩的, 所述接收单元 91, 具体用于接收机器类型通讯业务交互功能 实体 MTC-IWF发送的小数据包的数据包过滤器, 所述数据包过滤器具有小数 据包指示信息;
所述处理单元 92, 具体用于查找待发送的数据包对应的数据包过滤器, 若所述数据包过滤器具有所述小数据包指示信息, 则确定所述待发送的数据 包是小数据包。
进一歩的, 所述接收单元 91接收的所述小数据包指示信息, 包括: 在数 据包过滤器中扩展的小数据量标识、 或者与小数据包数据包过滤器对应的过
滤器名称。
进一歩的, 所述数据传输设备是服务网关 S-GW; 所述传输单元 93, 具体 用于通过下行数据通知消息将所述小数据包发送给移动管理实体。
进一歩的, 所述接收单元 91, 具体用于接收 P-GW传输的待发送的数据 包, 所述数据包的包头中设置有小数据包指示信息;
所述处理单元 92, 具体用于根据所述小数据包指示信息, 确定所述待发 送的数据包是小数据包。
实施例八
图 10为本发明网关实施例的结构示意图,该网关可以执行本发明任意实 施例的方法,如图 10所示,该网关可以包括:制定单元 1001和发送单元 1002 ;
制定单元 1001, 用于制定小数据包指示信息;
发送单元 1002, 用于将所述小数据包指示信息发送至数据传输设备, 以 使得所述数据传输设备根据所述小数据包指示信息, 在确定待发送的数据包 是小数据包时, 采用控制面传输方式传输所述小数据包。
进一歩的, 所述网关是分组数据网络网关 P-GW, 所述数据传输设备是用 户设备 UE。
进一歩的, 所述制定单元 1001, 具体用于在流量过滤模板 TFT中包括小 数据包对应的数据包过滤器,并为所述数据包过滤器设置小数据包指示信息。
进一歩的, 所述制定单元 1001, 具体用于将小数据包的数据包过滤器放 在同一个流量过滤模板 TFT中, 并设置小数据包指示信息, 所述小数据包指 示信息用于指示所述 TFT对应的承载是专门用于传输小数据包的承载。
进一歩的, 所述发送单元 1002, 具体用于在新建或修改承载信令请求消 息中携带所述流量过滤模板 TFT和小数据包指示信息。
进一歩的, 所述制定单元 1001, 还用于在制定小数据包指示信息之前, 接收 PCRF发送的 PCC规则,所述 PCC规则中包括小数据包对应的数据包过滤 器以及所述数据包过滤器对应的小数据包指示信息, 所述小数据包指示信息 用于所述 P-GW据此制定所述小数据包指示信息; 或者, 所述 P-GW获取本地 配置策略, 所述本地配置策略用于所述 P-GW据此制定所述小数据包指示信 息。
进一歩的, 所述网关是机器类型通讯业务交互功能实体 MTC-IWF, 所述
数据传输设备是用户设备 UE。
进一歩的, 所述制定单元 1001, 具体用于获取小数据包对应的数据包过 滤器, 所述数据包过滤器具有小数据包指示信息; 所述小数据包指示信息, 包括: 在数据包过滤器中扩展的小数据量标识、 或者与小数据包数据包过滤 器对应的过滤器名称。
进一歩的, 所述制定单元 1001, 还用于根据运营商策略对所述数据包过 滤器进行调整。
进一歩的, 所述网关是分组数据网络网关 P-GW, 所述数据传输设备是服 务网关 S-GW。
进一歩的, 所述制定单元 1001, 具体用于在发送给 S-GW的小数据包的 包头中设置小数据包指示信息。
本领域普通技术人员可以理解: 实现上述各方法实施例的全部或部分歩 骤可以通过程序指令相关的硬件来完成。 前述的程序可以存储于一计算机可 读取存储介质中。 该程序在执行时, 执行包括上述各方法实施例的歩骤; 而 前述的存储介质包括: R0M、 RAM, 磁碟或者光盘等各种可以存储程序代码的 介质。
最后应说明的是: 以上各实施例仅用以说明本发明的技术方案, 而非对 其限制; 尽管参照前述各实施例对本发明进行了详细的说明, 本领域的普通 技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改, 或者对其中部分或者全部技术特征进行等同替换; 而这些修改或者替换, 并 不使相应技术方案的本质脱离本发明各实施例技术方案的范围。
Claims
1、 一种传输小数据包的方法, 其特征在于, 包括:
数据传输设备接收网关发送的小数据包指示信息;
若所述数据传输设备根据所述小数据包指示信息确定待发送的数据包是 小数据包, 则所述数据传输设备采用控制面传输方式传输所述小数据包。
2、 根据权利要求 1所述的方法, 其特征在于, 所述数据传输设备是用户 设备 UE;
所述采用控制面传输方式传输所述小数据包, 具体为: 所述 UE通过非接 入层 NAS消息将所述小数据包发送给移动管理实体。
3、 根据权利要求 2所述的方法, 其特征在于, 所述数据传输设备接收网 关发送的小数据包指示信息, 包括:
所述 UE接收分组数据网络网关 P-GW发送的流量过滤模板 TFT ,所述 TFT 中包括小数据包对应的数据包过滤器, 所述数据包过滤器设置有小数据包指 示信息;
所述数据传输设备根据所述小数据包指示信息确定待发送的数据包是小 数据包, 包括: 所述 UE查找待发送的数据包对应的数据包过滤器, 若所述数 据包过滤器设置有所述小数据包指示信息, 则确定所述待发送的数据包是小 数据包。
4、 根据权利要求 2所述的方法, 其特征在于, 所述数据传输设备接收网 关发送的小数据包指示信息, 包括:
所述 UE接收 P-GW发送的流量过滤模板 TFT和小数据包指示信息, 所述 TFT中仅包括小数据包对应的数据包过滤器, 所述小数据包指示信息用于指 示所述 TFT对应的承载是专门用于传输小数据包的承载;
所述数据传输设备根据所述小数据包指示信息确定待发送的数据包是小 数据包, 包括: 所述 UE查找待发送的数据包对应的数据包过滤器, 并查看所 述数据包过滤器所在的 TFT对应的承载是否是专门用于传输小数据包的承 载, 若是则确定所述待发送的数据包是小数据包。
5、 根据权利要求 2所述的方法, 其特征在于, 所述数据传输设备接收网 关发送的小数据包指示信息, 包括:
所述 UE接收机器类型通讯业务交互功能实体 MTC-IWF发送的小数据包的
数据包过滤器, 所述数据包过滤器具有小数据包指示信息;
所述数据传输设备根据所述小数据包指示信息确定待发送的数据包是小 数据包, 包括: 所述 UE查找待发送的数据包对应的数据包过滤器, 若所述数 据包过滤器具有所述小数据包指示信息, 则确定所述待发送的数据包是小数 据包。
6、 根据权利要求 3-5任一所述的方法, 其特征在于,
所述小数据包指示信息, 包括: 在数据包过滤器中扩展的小数据量标识、 或者与小数据包的数据包过滤器对应的过滤器名称。
7、 根据权利要求 1所述的方法, 其特征在于, 所述数据传输设备是服务 网关 S-GW;
所述采用控制面传输方式传输所述小数据包, 具体为: 所述 S-GW通过下 行数据通知消息将所述小数据包发送给移动管理实体。
8、 根据权利要求 7所述的方法, 其特征在于, 所述数据传输设备接收网 关发送的小数据包指示信息, 包括:
所述 S-GW接收 P-GW传输的待发送的数据包, 所述数据包的 GTP-U包头 中设置有小数据包指示信息;
所述数据传输设备根据所述小数据包指示信息确定待发送的数据包是小 数据包, 包括: 所述 S-GW根据所述小数据包指示信息, 确定所述待发送的数 据包是小数据包。
9、 一种传输小数据包的方法, 其特征在于, 包括:
网关制定小数据包指示信息;
所述网关将所述小数据包指示信息发送至数据传输设备, 以使得所述数 据传输设备根据所述小数据包指示信息, 在确定待发送的数据包是小数据包 时, 采用控制面传输方式传输所述小数据包。
10、 根据权利要求 9所述的方法, 其特征在于, 所述网关是分组数据网 络网关 P-GW, 所述数据传输设备是用户设备 UE。
1 1、 根据权利要求 10所述的方法, 其特征在于, 所述网关制定小数据包 指示信息, 包括:
所述 P-GW在流量过滤模板 TFT中包括小数据包对应的数据包过滤器,并 为所述数据包过滤器设置小数据包指示信息。
12、 根据权利要求 10所述的方法, 其特征在于, 所述网关制定小数据包 指示信息, 包括:
所述 P-GW将小数据包的数据包过滤器放在同一个流量过滤模板 TFT中, 并设置小数据包指示信息, 所述小数据包指示信息用于指示所述 TFT对应的 承载是专门用于传输小数据包的承载。
13、 根据权利要求 12所述的方法, 其特征在于, 所述网关将所述小数据 包指示信息发送至数据传输设备, 包括:
所述 P-GW在新建或修改承载信令请求消息中携带所述流量过滤模板 TFT 和小数据包指示信息。
14、 根据权利要求 11-13任一所述的方法, 其特征在于, 所述网关制定 小数据包指示信息之前, 还包括:
所述 P-GW接收 PCRF发送的 PCC规则, 所述 PCC规则中包括小数据包对 应的数据包过滤器以及所述数据包过滤器对应的小数据包指示信息, 所述小 数据包指示信息用于所述 P-GW据此制定所述小数据包指示信息;
或者, 所述 P-GW获取本地配置策略, 所述本地配置策略用于所述 P-GW 据此制定所述小数据包指示信息。
15、 根据权利要求 9所述的方法, 其特征在于, 所述网关是机器类型通 讯业务交互功能实体 MTC-IWF, 所述数据传输设备是用户设备 UE。
16、 根据权利要求 15所述的方法, 其特征在于, 所述网关制定小数据包 指示信息, 包括:
所述 MTC-IWF获取小数据包对应的数据包过滤器, 所述数据包过滤器具 有小数据包指示信息; 所述小数据包指示信息, 包括: 在数据包过滤器中扩 展的小数据量标识、 或者与小数据包的数据包过滤器对应的过滤器名称。
17、 根据权利要求 16所述的方法, 其特征在于, 还包括:
所述 MTC-IWF根据运营商策略对所述数据包过滤器进行调整。
18、 根据权利要求 9所述的方法, 其特征在于, 所述网关是分组数据网 络网关 P-GW, 所述数据传输设备是服务网关 S_GW。
19、 根据权利要求 18所述的方法, 其特征在于, 所述网关制定小数据包 指示信息, 包括:
所述 P-GW在发送给 S-GW的小数据包的 GTP-U包头中设置小数据包指示
^ I pi自Θ、。
20、 一种数据传输设备, 其特征在于, 包括:
接收单元, 用于接收网关发送的小数据包指示信息;
处理单元, 用于根据所述接收单元接收的所述小数据包指示信息, 确定 待发送的数据包是否是小数据包;
传输单元, 用于在所述处理单元确定待发送的数据包是小数据包时, 采 用控制面传输方式传输所述小数据包。
21、 根据权利要求 20所述的设备, 其特征在于, 所述数据传输设备是用 户设备 UE;
所述传输单元, 具体用于通过非接入层 NAS消息将所述小数据包发送给 移动管理实体。
22、 根据权利要求 21所述的设备, 其特征在于,
所述接收单元,具体用于接收分组数据网络网关 P-GW发送的流量过滤模 板 TFT, 所述 TFT中包括小数据包对应的数据包过滤器, 所述数据包过滤器 设置有小数据包指示信息;
所述处理单元, 具体用于查找待发送的数据包对应的数据包过滤器, 若 所述数据包过滤器设置有所述小数据包指示信息, 则确定所述待发送的数据 包是小数据包。
23、 根据权利要求 21所述的设备, 其特征在于,
所述接收单元,具体用于接收 P-GW发送的流量过滤模板 TFT和小数据包 指示信息, 所述 TFT中仅包括小数据包对应的数据包过滤器, 所述小数据包 指示信息用于指示所述 TFT对应的承载是专门用于传输小数据包的承载; 所述处理单元, 具体用于查找待发送的数据包对应的数据包过滤器, 并 查看所述数据包过滤器所在的 TFT对应的承载是否是专门用于传输小数据包 的承载, 若是则确定所述待发送的数据包是小数据包。
24、 根据权利要求 21所述的设备, 其特征在于,
所述接收单元, 具体用于接收机器类型通讯业务交互功能实体 MTC-IWF 发送的小数据包的数据包过滤器,所述数据包过滤器具有小数据包指示信息; 所述处理单元, 具体用于查找待发送的数据包对应的数据包过滤器, 若 所述数据包过滤器具有所述小数据包指示信息, 则确定所述待发送的数据包
是小数据包。
25、 根据权利要求 22-24任一所述的设备, 其特征在于, 所述接收单元 接收的所述小数据包指示信息, 包括: 在数据包过滤器中扩展的小数据量标 识、 或者与小数据包的数据包过滤器对应的过滤器名称。
26、 根据权利要求 20所述的设备, 其特征在于, 所述数据传输设备是服 务网关 S-GW;
所述传输单元, 具体用于通过下行数据通知消息将所述小数据包发送给 移动管理实体。
27、 根据权利要求 26所述的设备, 其特征在于,
所述接收单元, 具体用于接收 P-GW传输的待发送的数据包, 所述数据包 的包头中设置有小数据包指示信息;
所述处理单元, 具体用于根据所述小数据包指示信息, 确定所述待发送 的数据包是小数据包。
28、 一种网关, 其特征在于, 包括:
制定单元, 用于制定小数据包指示信息;
发送单元, 用于将所述小数据包指示信息发送至数据传输设备, 以使得 所述数据传输设备根据所述小数据包指示信息, 在确定待发送的数据包是小 数据包时, 采用控制面传输方式传输所述小数据包。
29、 根据权利要求 28所述的网关, 其特征在于, 所述网关是分组数据网 络网关 P-GW, 所述数据传输设备是用户设备 UE。
30、 根据权利要求 29所述的网关, 其特征在于,
所述制定单元, 具体用于在流量过滤模板 TFT中包括小数据包对应的数 据包过滤器, 并为所述数据包过滤器设置小数据包指示信息。
31、 根据权利要求 29所述的网关, 其特征在于,
所述制定单元, 具体用于将小数据包的数据包过滤器放在同一个流量过 滤模板 TFT中, 并设置小数据包指示信息, 所述小数据包指示信息用于指示 所述 TFT对应的承载是专门用于传输小数据包的承载。
32、 根据权利要求 31所述的网关, 其特征在于,
所述发送单元, 具体用于在新建或修改承载信令请求消息中携带所述流 量过滤模板 TFT和小数据包指示信息。
33、 根据权利要求 30-32任一所述的网关, 其特征在于,
所述制定单元, 还用于在制定小数据包指示信息之前, 接收 PCRF发送的 PCC规则, 所述 PCC规则中包括小数据包对应的数据包过滤器以及所述数据 包过滤器对应的小数据包指示信息,所述小数据包指示信息用于所述 P-GW据 此制定所述小数据包指示信息; 或者, 所述 P-GW获取本地配置策略, 所述本 地配置策略用于所述 P-GW据此制定所述小数据包指示信息。
34、 根据权利要求 28所述的网关, 其特征在于, 所述网关是机器类型通 讯业务交互功能实体 MTC-IWF, 所述数据传输设备是用户设备 UE。
35、 根据权利要求 34所述的网关, 其特征在于,
所述制定单元, 具体用于获取小数据包对应的数据包过滤器, 所述数据 包过滤器具有小数据包指示信息; 所述小数据包指示信息, 包括: 在数据包 过滤器中扩展的小数据量标识、 或者与小数据包的数据包过滤器对应的过滤 器名称。
36、 根据权利要求 35所述的网关, 其特征在于,
所述制定单元, 还用于根据运营商策略对所述数据包过滤器进行调整。
37、 根据权利要求 28所述的网关, 其特征在于, 所述网关是分组数据网 络网关 P-GW, 所述数据传输设备是服务网关 S-GW。
38、 根据权利要求 37所述的网关, 其特征在于,
所述制定单元,具体用于在发送给 S-GW的小数据包的包头中设置小数据 包指示信息。
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US10674448B2 (en) | 2015-10-28 | 2020-06-02 | Huawei Technologies Co., Ltd. | Data transmission method and apparatus |
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